Welding jig for flexible flat cable (FFC) and surface mount technology (SMT)

Abstract

The utility model relates to the technical field of new energy automobile CCS integrated busbars, and provides a welding jig for FFC flexible flat cables and SMT patches, which comprises a carrier plate, a first cover plate and a second cover plate. Wherein the carrier plate is provided with an FFC profiling groove, an accommodating groove and a positioning column, the FFC profiling groove is matched with the FFC in shape, and the FFC is fixed in the FFC profiling groove through the positioning column; the second cover plate is provided with an open hole, and the second cover plate is matched with the positioning column through the open hole to be fixed in the containing groove; the first cover plate is provided with a window, the window is matched with the second cover plate, and the first cover plate is tightly attached to the carrier plate. According to the welding jig provided by the utility model, the FFC is positioned in the FFC profiling groove through the positioning column, so that the positioning accuracy is ensured; the first cover plate is provided with the window matched with the second cover plate, so that the first cover plate is tightly attached to the carrier plate, the FFC can be pressed on the carrier plate by the first cover plate and the second cover plate, the FFC is prevented from deviating and warping, the flatness is improved, and the yield and the quality are improved; during welding, stability is guaranteed, and quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CCS integrated busbars of new energy vehicles, and in particular to a welding fixture for FFC flexible flat cables and SMT patches. Background Art

[0002] The CCS integrated busbar integrates the conductive busbar, control circuit (voltage, temperature acquisition) and other components in the battery module into one module to realize functions such as high-voltage series and parallel connection of battery cells, temperature acquisition, voltage acquisition, over-current fusing, etc. It has the characteristics of high integration, good reliability, compact structure and small size. It can save space, facilitate automated assembly, and is suitable for large-scale mass production. It is widely used in new energy vehicles and energy storage equipment.

[0003] FFC is Flexible Flat Cable, which can arbitrarily select the number and spacing of wires, making wiring more convenient, greatly reducing the size of electronic products, reducing production costs, and improving production efficiency. It is often used as a data transmission cable between mobile parts and motherboards, between PCB boards, and in miniaturized electrical equipment.

[0004] SMT patch refers to the abbreviation of a series of process flows based on PCB. PCB (Printed Circuit Board) is a printed circuit board. SMT is the abbreviation of surface mounting technology (surface mounting technology), which is the most popular technology and process in the electronic assembly industry.

[0005] With the development of the entire CCS technology, FFC, as a substitute for wire harness and FPC (Flexible Printed Circuit) in CCS, and laser soldering process technology and equipment as a downstream of SMT mounting technology have also been developed accordingly.

[0006] However, during the FFC manufacturing process, the positioning of the FFC is prone to inaccuracy and low flatness, which affects the subsequent laser welding and other processes, easily causing defects in product quality, resulting in a decrease in the overall yield rate, which has a very large impact on the overall product quality. Utility Model Content

[0007] In view of the shortcomings of the prior art, the utility model provides a welding fixture for FFC flexible flat cables and SMT patches, which is used to solve at least one of the above-mentioned technical defects in the prior art, so that when FFC is welded, its positioning is more accurate, the patch flatness is higher, and the overall yield and overall quality are improved.

[0008] In order to achieve the purpose of the utility model, the utility model provides a welding fixture for FFC flexible flat cables and SMT patches, the welding fixture comprising:

[0009] A carrier plate is provided with an FFC profiling groove, a receiving groove and a positioning column, wherein the FFC profiling groove matches the shape of the FFC, and the FFC is fixed to the FFC profiling groove through the positioning column;

[0010] A second cover plate is provided with an opening, and the second cover plate is matched with the positioning column and fixed to the receiving groove through the opening;

[0011] The first cover plate is provided with a window, the window matches the second cover plate, and the first cover plate is tightly fitted with the carrier plate.

[0012] Preferably, a plurality of magnetic members are disposed on the carrier plate, and the first cover plate is tightly fitted to the carrier plate through the magnetic members.

[0013] Preferably, the carrier plate is further provided with an FFC access hole, and the FFC access hole intersects with the edge of the FFC profiling groove.

[0014] Preferably, the carrier plate is further provided with a second cover plate access hole.

[0015] The second cover plate access hole intersects with the edge of the receiving groove.

[0016] Preferably, the second cover plate access hole comprises a circular second cover plate access hole and a square second cover plate access hole, and the circular second cover plate access hole and the square second cover plate access hole are arranged opposite to each other.

[0017] Preferably, the carrier plate is further provided with a copper branch profiling groove, and the second cover plate is further provided with a copper branch opening.

[0018] Preferably, the carrier plate is further provided with an NTC contoured groove, and the second cover plate is further provided with an NTC opening.

[0019] Preferably, the carrier plate is also provided with a first cover plate taking and placing hole.

[0020] Preferably, the carrier plate is also provided with fixing holes.

[0021] Preferably, a plurality of fixing holes are provided and are evenly distributed on the inner side of the carrier plate.

[0022] The beneficial effects of the utility model are as follows: the utility model provides a welding fixture for FFC flexible flat cables and SMT patches, and by arranging an FFC profiling groove, a receiving groove and a positioning column on a carrier board, the FFC can be placed in the FFC profiling groove and positioned by the positioning column, thereby ensuring the accuracy of its positioning; furthermore, an opening is arranged on the first cover plate, the opening matches the second cover plate, and the first cover plate is tightly fitted with the carrier board, and the second cover plate is fixed on the receiving groove by matching the opening with the positioning column, so that the first cover plate and the second cover plate can press the FFC on the carrier board, thereby preventing the FFC from being offset and deformed and warped, improving the flatness of the FFC relative to the carrier board, and improving the overall yield rate and overall quality; the welding fixture is used for the rapid movement of the machine table and the track, and during welding, no offset will occur, thereby ensuring the stability of the welding process and improving the processing quality of the FFC. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other purposes, features and advantages of the present invention will become more clear through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the drawings are not deliberately scaled to the actual size, but the focus is on illustrating the subject matter of the present application.

[0024] Figure 1 A schematic diagram of the structure of a carrier board in a welding jig for FFC flexible flat cables and SMT patches provided in an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of the first cover plate in the welding fixture for FFC flexible flat cables and SMT patches provided by an embodiment of the utility model;

[0026] Figure 3 A schematic structural diagram of a second cover plate in a welding jig for FFC flexible flat cables and SMT patches provided in an embodiment of the utility model.

[0027] In the figure:

[0028] 100, carrier; 120, FFC profiling groove; 130, receiving groove; 140, positioning column; 150, magnetic member; 160, FFC access hole; 161, second cover access hole; 1611, round second cover access hole; 1612, square second cover access hole; 170, copper branch profiling groove; 171, NTC profiling groove; 180, first cover access hole; 190, fixing hole;

[0029] 200, second cover plate; 210, opening; 220, copper branch opening; 230, NTC opening;

[0030] 300. First cover plate; 310. Open window. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0032] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] Combine the following Figures 1 to 3 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

[0035] See also Figures 1 to 3 An embodiment of the utility model provides a welding fixture for FFC flexible flat cables and SMT patches, the fixture comprising a carrier plate 100, a second cover plate 200 and a first cover plate 300.

[0036] The carrier board 100 is provided with an FFC profiling groove 120, a receiving groove 130 and a positioning column 140. The FFC profiling groove 120 matches the shape of the FFC. The FFC can be placed on the FFC profiling groove 120 and fixed by the positioning column 140 to prevent the FFC from moving.

[0037] The second cover plate 200 is provided with an opening 210 , and the opening 210 matches with the positioning column 140 , so that the second cover plate 200 can be fixed in the receiving groove 130 .

[0038] The first cover plate 300 is provided with a window 310, and the window 310 matches the second cover plate 200. The first cover plate 300 fits tightly with the carrier plate 100. After the FFC is placed on the carrier plate 100, the first cover plate 300 can pre-fix and flatten the FFC to prevent the FFC from shifting when the second cover plate 200 is placed, thereby avoiding the occurrence of unevenness and inaccurate positioning.

[0039] It can be understood that the welding fixture for FFC flexible flat cable and SMT patch provided by the embodiment of the utility model, by setting FFC profiling groove 120, receiving groove 130 and positioning column 140 on the carrier 100, the FFC can be placed in the FFC profiling groove 120 and positioned by the positioning column 140, thereby ensuring the accuracy of its positioning; and a window 310 is also set on the first cover plate 300, the window 310 matches the second cover plate 200, and the first cover plate 300 is tightly connected to the carrier 100. The second cover plate 200 is fixed on the receiving groove 130 through the opening 210 and the matching positioning column 140, so that the first cover plate 300 and the second cover plate 200 can press the FFC on the carrier 100, prevent the FFC from deflecting and deforming and warping, improve the flatness of the FFC relative to the carrier 100, and improve the overall yield rate and overall quality; the welding fixture is used for the rapid movement of the machine and the track, and during welding, no deviation will occur, thereby ensuring the stability of the welding process and improving the processing quality of the FFC.

[0040] In some embodiments of the utility model, a plurality of magnetic parts 150 are provided on the carrier 100, and the first cover plate 300 is tightly fitted with the carrier 100 through the magnetic parts 150. The magnetic parts 150 can be magnets. In this case, the first cover plate 300 and the second cover plate 200 can be made of metal (such as stainless steel), and the magnets are evenly distributed on the carrier 100. When the FFC is placed on the carrier 100, the first cover plate 300 and the second cover plate 200 can firmly attach the main board and the sub-board of the FFC to the carrier 100 through the adsorption force of the magnetic parts 150, which can prevent the FFC from moving and further improve the accuracy of its positioning. Compared with the traditional bolt and buckle fixing method, this magnetic fixing method is simpler and faster to operate, and can also reduce the complexity of maintenance.

[0041] In order to facilitate the placement and removal of the FFC, in some embodiments of the present invention, an FFC access hole 160 is further provided on the carrier 100 , and the FFC access hole 160 intersects with the edge of the FFC contour groove 120 .

[0042] Furthermore, in some embodiments of the present invention, a second cover plate access hole 161 is further provided on the carrier plate 100, and the second cover plate access hole 161 intersects with the edge of the receiving groove 130. In this way, the second cover plate 200 can be placed and taken out more conveniently, which can improve the efficiency of the welding jig.

[0043] In order to make the second cover plate 200 more stable when being taken and placed, in some embodiments of the present invention, the second cover plate taking and placing hole 161 includes a circular second cover plate taking and placing hole 1611 and a square second cover plate taking and placing hole 1612, and the circular second cover plate taking and placing hole 1611 and the square second cover plate taking and placing hole 1612 are arranged opposite to each other.

[0044] In some embodiments of the utility model, a copper branch profiling groove 170 is further provided on the carrier 100, and a copper branch opening 220 is further provided on the second cover 200. The copper branch profiling groove 170 can match the shape of the copper branch on the FFC, so as to facilitate the fixing of the copper branch on the FFC; the copper branch opening 220 corresponds to the copper branch pad on the FFC, so that the positioning is more accurate during welding, so as to avoid defects in product quality caused by subsequent laser welding and other process operations, and can further improve the overall yield rate and the overall quality of the product.

[0045] In some embodiments of the utility model, the carrier plate 100 is further provided with an NTC profiling groove 171, and the second cover plate 200 is further provided with an NTC opening 230. The NTC profiling groove 171 can match the shape of the NTC on the FFC, so as to facilitate the fixing of the NTC on the FFC; the NTC opening 230 corresponds to the NTC pad on the FFC, so that the positioning is more accurate during welding, so as to avoid defects in product quality caused by subsequent laser welding and other process operations, and can further improve the overall yield rate and the overall quality of the product.

[0046] In order to facilitate the placement and removal of the first cover plate 300, in some embodiments of the present invention, the carrier plate 100 is further provided with a first cover plate access hole 180. The first cover plate access hole 180 can be provided on both sides of the carrier plate 100 and be semicircular.

[0047] Of course, in some embodiments of the present invention, a fixing hole 190 is further provided on the carrier plate 100, and the carrier plate 100 can be fixed to the welding machine table of the welding equipment through the fixing hole 190 using bolts, which can make it more convenient to disassemble and use the welding fixture.

[0048] Furthermore, in order to enable the welding jig to be more stably fixed on the welding equipment, in some embodiments of the present invention, a plurality of fixing holes 190 may be provided, and the fixing holes 190 are evenly distributed on the inner side of the carrier 100 , and the fixing holes 190 may also be evenly arranged on the four corners of the carrier 100 .

[0049] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a 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.

[0050] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A welding fixture for FFC flexible flat cables and SMT patches, characterized in that: include: A carrier plate is provided with an FFC profiling groove, a receiving groove and a positioning column, wherein the FFC profiling groove matches the shape of the FFC, and the FFC is fixed to the FFC profiling groove through the positioning column; A second cover plate is provided with an opening, and the second cover plate is matched with the positioning column and fixed to the receiving groove through the opening; The first cover plate is provided with a window, the window matches the second cover plate, and the first cover plate is tightly fitted with the carrier plate.

2. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is provided with a plurality of magnetic members, and the first cover plate is closely attached to the carrier plate through the magnetic members.

3. The welding jig for FFC flexible flat cables and SMT patches according to claim 1, characterized in that: The carrier plate is also provided with an FFC access hole, and the FFC access hole intersects with the edge of the FFC profiling groove.

4. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is also provided with a second cover plate access hole. The second cover plate access hole intersects with the edge of the receiving groove.

5. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 4, characterized in that: The second cover plate access hole comprises a circular second cover plate access hole and a square second cover plate access hole, and the circular second cover plate access hole and the square second cover plate access hole are arranged opposite to each other.

6. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is also provided with a copper branch profiling groove, and the second cover plate is also provided with a copper branch opening.

7. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is also provided with an NTC profiling groove, and the second cover plate is also provided with an NTC opening.

8. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is also provided with a first cover plate taking and placing hole.

9. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 1, characterized in that: The carrier plate is also provided with fixing holes.

10. The welding jig for FFC flexible flat cables and SMT patches as claimed in claim 9, characterized in that: A plurality of fixing holes are provided and are evenly distributed on the inner side of the carrier plate.

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