Composite carrier for laser welding

Abstract

This utility model relates to a composite carrier for laser welding. The composite carrier includes a carrier body and a carrier cover plate. The carrier body includes an aluminum alloy base plate, at least one synthetic stone carrier block disposed on the aluminum alloy base plate, and multiple positioning protrusions. The carrier cover plate includes a cover plate body corresponding to the aluminum alloy base plate, at least one welding clearance groove disposed on the cover plate body corresponding to each synthetic stone carrier block, and multiple positioning clearance holes corresponding to each positioning protrusion. The aluminum alloy base plate has at least one welding area, and the welding area is provided with a carrier mounting groove. The synthetic stone carrier block is installed in the carrier mounting groove and is used to correspond to the connection pads of the device to be laser welded. This utility model solves the problems of rapid heat dissipation causing welding problems when using aluminum alloy carriers to weld FPCA products, and the high weight and cost of synthetic stone carriers, which are detrimental to carrier handling and product production.

Description

Technical Field

[0001] This utility model relates to the field of flexible plate manufacturing technology, and in particular to a composite carrier for laser welding. Background Technology

[0002] With the rapid development of laser welding technology, reflow soldering of FPCA (Flexible Printed Circuit Assembly) for new energy battery packs has become feasible. Traditional SMT (Surface Mount Technology) reflow soldering involves the following process: board mounting → printing → SPI (Solder Paste Inspection) → component placement → reflow soldering → X-ray inspection → AOI (Automated Optical Inspection) → board removal, etc.

[0003] Furthermore, during reflow soldering, FPCA products typically require placement on specialized carriers. These carriers are usually made of materials such as aluminum alloys and synthetic stone, each with its own advantages and disadvantages. For example, aluminum alloy carriers have a high thermal conductivity, reaching 167 W / mK, allowing for rapid heat transfer and ensuring uniform heating of the printed circuit board. However, they are prone to oxidation at high temperatures, and nickel or chromium plating would further increase costs. Synthetic stone carriers, on the other hand, have a low CTE (Coefficient of Thermal Expansion), effectively reducing deformation at high temperatures. However, their thermal conductivity is lower, only 0.2–5 W / mK, resulting in slower cooling and extended production cycles.

[0004] In laser welding, the advantages and disadvantages of aluminum alloy carriers and synthetic stone carriers vary due to their inherent material properties. Unlike reflow ovens, which have their own heating and circulating air systems to continuously generate high temperatures to ensure welding, laser welding generates extremely limited heat, characterized by instantaneous high temperatures. Therefore, when using aluminum alloy carriers with high thermal conductivity, the heat generated by the laser for welding is easily transferred to the carrier and lost, causing welding problems. However, FPCA products used in new energy battery packs are approximately two meters long. If only synthetic stone carriers are used to support FPCA products, the carrier will be too heavy, requiring two people to handle it, which is inconvenient for carrier handling and product production. Furthermore, synthetic stone carriers are particularly expensive. Utility Model Content

[0005] This utility model provides a composite carrier for laser welding, which can solve the technical problems of traditional technology, such as using aluminum alloy carriers to weld FPCA products for new energy battery packs, which easily causes welding problems due to rapid heat dissipation, and using synthetic stone carriers for welding, which are heavy and not conducive to carrier handling and product production, and are also particularly costly.

[0006] To address the aforementioned technical problems, this utility model provides a composite carrier for laser welding, comprising:

[0007] The vehicle body includes an aluminum alloy base plate, at least one synthetic stone block disposed on the aluminum alloy base plate, and a plurality of positioning protrusions disposed on the aluminum alloy base plate; and,

[0008] The vehicle cover plate includes a cover plate body corresponding to the aluminum alloy base plate, at least one welding clearance groove provided on the cover plate body and corresponding to the synthetic stone carrier block, and a plurality of positioning clearance holes provided on the cover plate body and corresponding to the plurality of positioning protrusions.

[0009] The aluminum alloy base plate has at least one welding area, and the welding area is provided with a carrier mounting groove. The synthetic stone carrier block is installed in the carrier mounting groove and is used to correspond to the connection pad of the device to be laser welded.

[0010] Optionally, the vehicle mounting groove includes a main mounting groove disposed at the welding area on the aluminum alloy base plate, and a mounting ring groove disposed on the periphery of the main mounting groove, wherein the depth of the mounting ring groove is less than the depth of the main mounting groove.

[0011] The synthetic stone carrier includes a carrier body installed in the main mounting groove, and a carrier limiting ring protruding from the periphery of the carrier body, the carrier limiting ring being installed in the mounting ring groove.

[0012] Optionally, the main mounting groove penetrates the aluminum alloy base plate;

[0013] The thickness of the aluminum alloy base plate is 4.5-5.5mm, and the depth of the mounting ring groove is half the depth of the mounting main groove.

[0014] Optionally, the carrier block limiting ring is riveted or threaded into the mounting ring groove.

[0015] Optionally, the carrier block limiting ring is provided with a plurality of first connecting holes, and the bottom wall of the mounting ring groove is provided with a plurality of second connecting holes, and a plurality of connecting rivets or a plurality of connecting screws are respectively inserted into the plurality of first connecting holes and the plurality of second connecting holes.

[0016] Optionally, the synthetic stone carrier block is bonded to the carrier mounting slot.

[0017] Optionally, a first high-temperature resistant adhesive layer is provided between the side of the carrier block limiting ring and the side wall of the mounting ring groove; or / and,

[0018] A second high-temperature resistant adhesive layer is provided between the bottom surface of the carrier block limiting ring and the bottom wall of the mounting ring groove; or / and,

[0019] A third high-temperature resistant adhesive layer is provided between the side of the carrier block body and the side wall of the mounting main groove.

[0020] Optionally, the synthetic stone carrier is magnetically connected to the carrier mounting slot.

[0021] Optionally, the carrier block limiting ring is provided with a plurality of first magnets, and the bottom wall of the mounting ring groove is provided with a plurality of second magnets, with the magnetic poles of the first magnets and the second magnets opposite to each other.

[0022] Optionally, the aluminum alloy base plate is provided with a plurality of alignment marks around its perimeter, and the plurality of alignment marks correspond one-to-one with a plurality of corners around the perimeter of the vehicle cover plate.

[0023] The beneficial effects of the technical solution provided by this utility model include:

[0024] When using a composite carrier for laser welding to weld FPCA products for new energy battery packs, the FPCA and the device to be laser welded can be supported by the aluminum alloy base plate of the carrier body, and the carrier cover plate is placed on the FPCA and the device to be laser welded, clamping them between the carrier body and the carrier cover plate. The FPCA and the device to be laser welded are positioned by the positioning protrusions on the aluminum alloy base plate and the positioning clearance holes on the carrier cover plate (both the FPCA and the device to be laser welded are also provided with corresponding welding positioning holes).

[0025] Furthermore, when the FPCA and the device to be laser-welded are clamped and positioned between the carrier body and the carrier cover, the welding pads on the FPCA and the connection pads of the device to be laser-welded can be aligned. The pads of both (i.e., welding pads and connection pads) also correspond and cooperate with the synthetic stone carrier blocks set in the welding area of ​​the aluminum alloy base plate. This ensures that when the device to be laser-welded is welded onto the FPCA, the heat generated by the laser for welding is not easily transferred to the carrier and lost, thus guaranteeing welding quality. Moreover, the main structure of the carrier body is made of an aluminum alloy base plate, and synthetic stone carrier blocks are set in the welding area, which reduces the weight of the carrier, facilitates carrier handling and product production, and also reduces carrier costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a simplified planar structure diagram of the FPCA described in this embodiment of the present invention;

[0028] Figure 2 This is a simplified planar structural diagram of the device to be laser-welded according to an embodiment of the present invention;

[0029] Figure 3 This is a simplified side view of the composite carrier for laser welding described in an embodiment of the present invention.

[0030] Figure 4 This is a simplified planar structural diagram of the carrier body of the composite carrier for laser welding described in an embodiment of the present invention. Figure 1 ;

[0031] Figure 5 This is a simplified planar structural diagram of the carrier body of the composite carrier for laser welding described in an embodiment of the present invention. Figure 2 ;

[0032] Figure 6 This is a simplified planar structural diagram of the carrier cover plate of the composite carrier for laser welding described in an embodiment of the present invention;

[0033] Figure 7 This is a simplified planar structural diagram of the welding area portion of the carrier body of the composite carrier for laser welding described in the first embodiment of this utility model;

[0034] Figure 8 for Figure 7 A simplified schematic diagram of the cross-section of the structure;

[0035] Figure 9 This is a simplified planar structural diagram of the synthetic stone block of the vehicle body of the composite vehicle for laser welding described in the first embodiment of this utility model;

[0036] Figure 10 This is a simplified side view of the synthetic stone block of the vehicle body of the composite vehicle for laser welding described in the first embodiment of this utility model.

[0037] Figure 11 This is a simplified schematic diagram of the structure of the composite carrier for laser welding described in the first embodiment of the present invention before the installation of the carrier body and the synthetic stone block;

[0038] Figure 12 This is a simplified schematic diagram of the structure of the composite carrier for laser welding described in the first embodiment of the present invention before and after the installation of the carrier body and the synthetic stone block;

[0039] Figure 13 This is a simplified planar structural diagram of the welding area portion of the carrier body of the composite carrier for laser welding described in the second embodiment of this utility model;

[0040] Figure 14 This is a simplified planar structural diagram of the synthetic stone block of the vehicle body of the composite vehicle for laser welding described in the second embodiment of this utility model;

[0041] Figure 15 This is a simplified schematic diagram of the structure of the composite carrier for laser welding and the synthetic stone block before installation, as described in the second embodiment of this utility model.

[0042] Figure 16 This is a simplified schematic diagram of the structure of the composite carrier for laser welding described in the second embodiment of the present invention before and after the installation of the carrier body and the synthetic stone block;

[0043] Figure 17 This is a simplified planar structural diagram of the welding area portion of the carrier body of the composite carrier for laser welding described in the third embodiment of this utility model;

[0044] Figure 18 This is a simplified planar structural diagram of the synthetic stone block of the vehicle body of the composite vehicle for laser welding described in the third embodiment of this utility model;

[0045] Figure 19 This is a simplified schematic diagram of the structure of the composite carrier for laser welding and the synthetic stone block before installation, as described in the third embodiment of this utility model.

[0046] Figure 20 This is a simplified structural diagram of the composite carrier for laser welding described in the third embodiment of the present invention, before and after the installation of the carrier body and the synthetic stone block.

[0047] In the diagram: 10. Composite carrier for laser welding; 100. Carrier body; 110. Aluminum alloy base plate; 112. Positioning protrusion; 1122. First positioning pin; 1124. Second positioning pin; 114. Carrier mounting slot; 1142. Main mounting slot; 1144. Mounting ring slot; 116. Second connecting hole; 118. Second magnet; 1182. Second mounting hole; 119. Alignment mark; 120. Synthetic stone block; 122. Block body; 124. Block limiting ring; 1242. First connecting hole; 1244. First magnet; 11442. First mounting ring. 130. Connecting rivet (or connecting screw); 140. Second high-temperature resistant adhesive layer; 200. Carrier cover plate; 210. Cover plate body; 212. Welding clearance groove; 214. Positioning clearance hole; 2142. First positioning hole; 2144. Second positioning hole; 20. FPCA; 21. Flexible board assembly; 22. Crimping connector; 23. Product positioning hole; 24. Welding pad; 25. Product clearance hole; 30. Component to be laser welded; 31. Component circuit board; 32. Core component; 33. Circuit wire; 34. Connecting pad; 35. Component clearance hole. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0049] like Figures 1 to 6 As shown, this utility model proposes a composite carrier 10 for laser welding, including a carrier body 100 and a carrier cover 200 for covering the carrier body 100. When it is necessary to laser weld the device 30 to be laser welded onto the FPCA, the FPCA and the device 30 to be laser welded can be placed and positioned on the carrier body 100, and the carrier cover 200 can be placed on top to facilitate laser welding of the device 30 to the FPCA.

[0050] Specifically, the vehicle body 100 may include an aluminum alloy base plate 110, at least one welding area on the aluminum alloy base plate 110, at least one synthetic stone block 120 corresponding to the at least one welding area on the aluminum alloy base plate 110, and a plurality of positioning protrusions 112 on the aluminum alloy base plate 110. Furthermore, the vehicle cover plate 200 may include a cover plate body 210 corresponding to the aluminum alloy base plate 110, at least one welding clearance groove 212 on the cover plate body 210 corresponding to the synthetic stone block 120, and a plurality of positioning clearance holes 214 on the cover plate body 210 corresponding to the plurality of positioning protrusions 112.

[0051] When using the composite carrier 10 for laser welding proposed in this utility model to weld FPCA products for new energy battery packs, the FPCA and the device 30 to be laser welded can be supported by the aluminum alloy base plate 110 of the carrier body 100, and the carrier cover plate 200 is placed on the FPCA and the device 30 to be laser welded, clamping the two between the carrier body 100 and the carrier cover plate 200. The FPCA and the device 30 to be laser welded are positioned by the positioning protrusion 112 on the aluminum alloy base plate 110 and the positioning clearance hole 214 on the carrier cover plate 200 (both the FPCA and the device 30 to be laser welded are also provided with corresponding welding positioning holes).

[0052] Furthermore, when the FPCA and the device to be laser-welded 30 are clamped and positioned between the carrier body 100 and the carrier cover plate 200, the welding pads 24 on the FPCA and the connecting pads 34 of the device to be laser-welded 30 can correspond, and the pads of both (i.e., welding pads 24 and connecting pads 34) can correspond and cooperate with the synthetic stone carrier blocks 120 provided at the welding area of ​​the aluminum alloy base plate 110. This ensures that when the device to be laser-welded 30 is welded to the FPCA, the heat generated by the laser for welding is not easily transferred to the carrier and lost, thus ensuring welding quality. Moreover, the main structure of the carrier body 100 is all set as the aluminum alloy base plate 110, and the synthetic stone carrier blocks 120 are provided at the welding area, which can reduce the weight of the carrier, facilitate the handling of the carrier and product production, and also reduce the cost of the carrier.

[0053] Furthermore, the FPCA20 can be configured as a long strip-shaped flexible board assembly 21, with a crimp connector 22 at one end and at least two product positioning holes 2323 at each end, the radius of which can be 3mm. Moreover, the FPCA20 can have multiple sets of solder pads 24 in its middle (each set of solder pads 24 can have at least one solder pad 24), and at least two product clearance holes 25 can be provided next to each set of solder pads 24, the radius of which can be 2mm.

[0054] Correspondingly, a device 30 to be laser-welded can be laser-welded at each group of solder pads 24 in the middle of the FPCA20. The device 30 to be laser-welded may include a device circuit board 31, a core component 32 disposed on the device circuit board 31, a circuit wire 33 connecting each end of the core component 32, and a connection pad 34 disposed at the end of the circuit wire 33. The connection pad 34 of the device 30 to be laser-welded corresponds to the solder pads 24 of the FPCA20. By laser-welding the solder pads 24 of the FPCA20 and the connection pads 34 of the device 30 to be laser-welded, the device 30 to be laser-welded is laser-welded onto the FPCA20. Furthermore, the device circuit board 31 of the device 30 to be laser-welded may also have at least two device clearance holes 35, the radius of which may be 2mm, corresponding one-to-one with at least two product clearance holes 25 next to each group of solder pads 24 of the FPCA20.

[0055] Furthermore, the aluminum alloy substrate 110 may have at least two welding areas in its center. Moreover, the plurality of positioning protrusions 112 on the aluminum alloy substrate 110 may include at least two second positioning pins 1124 (such as positioning pins) located beside each welding area. At least two product clearance holes 25 beside each group of welding pads 24 in the center of the FPCA 20 may be correspondingly inserted into the at least two second positioning pins 1124, and at least two device clearance holes 35 on the device to be laser welded 30 may also be correspondingly inserted into the at least two second positioning pins 1124, thereby enabling the positioning of each group of welding pads 24 on the FPCA and the device to be laser welded 30. Furthermore, the radius of the second positioning pin 1124 may be set to 1.95 mm, slightly smaller than the radius of the product clearance holes 25 and the device clearance holes 35.

[0056] Furthermore, multiple alignment marks 119 can be provided around the aluminum alloy base plate 110, with each alignment mark 119 corresponding to a different corner of the vehicle cover plate 200. By providing multiple alignment marks 119 around the aluminum alloy base plate 110, initial alignment of the vehicle cover plate 200 with the aluminum alloy base plate 110 is facilitated. Moreover, in this embodiment, both the aluminum alloy base plate 110 and the vehicle cover plate 200 are rectangular (or other shapes depending on the shape of the FPCA), with one alignment mark 119 near each of the four corners of the aluminum alloy base plate 110, corresponding to the four corners of the vehicle cover plate 200. Furthermore, the alignment marks 119 can be L-shaped marking lines with a width of 0.3 mm. In addition, the four edges of the aluminum alloy base plate 110 can extend at least 10 mm beyond the four edges of the FPCA, and the thickness of the aluminum alloy base plate 110 can be 4.5-5.5 mm (such as 4.5 mm, 5.5 mm, 5 mm, etc.); in addition, the edge of the welding clearance groove 212 of the carrier cover plate 200 is about 10 mm away from the side of the connecting pad 34 of the device to be laser welded 30.

[0057] Furthermore, the plurality of positioning protrusions 112 on the aluminum alloy base plate 110 may include at least two first positioning pins 1122 (such as positioning pins) at each end of the aluminum alloy base plate 110. At least two product positioning holes 23 at each end of the FPCA can be inserted into the at least two first positioning pins 1122 in a one-to-one correspondence, thereby positioning the FPCA. Moreover, the radius of the first positioning pin 1122 may be set to 2.95 mm, slightly smaller than the radius of the product positioning hole 23.

[0058] Correspondingly, the plurality of positioning and clearance holes 214 on the carrier cover plate 200 may include at least two first positioning holes 2142 at each end of the cover plate body 210, which are correspondingly inserted into at least two first positioning pins 1122 at each end of the aluminum alloy base plate 110 to position the carrier cover plate 200. Furthermore, the plurality of positioning and clearance holes 214 on the carrier cover plate 200 may also include at least two second positioning holes 2144 on the side of each welding clearance groove 212 in the middle of the cover plate body 210, which are correspondingly inserted into at least two first positioning pins 1122 on the side of each welding area in the middle of the aluminum alloy base plate 110 to further position the carrier cover plate 200, and simultaneously position the FPCA and the laser-welded device 30 between the carrier cover plate 200 and the carrier body 100. The radius of the first positioning hole 2142 can be 3mm, and the radius of the second positioning hole 2144 can be 2mm.

[0059] Furthermore, each welding area on the aluminum alloy base plate 110 can be provided with a carrier mounting groove 114, and the synthetic stone carrier block 120 can be correspondingly installed in the carrier mounting groove 114 to correspond with the connection pad 34 of the device 30 to be laser welded. The synthetic stone carrier block 120 can be installed on the aluminum alloy base plate 110 by embedding, which is firm and simple.

[0060] Furthermore, the carrier mounting groove 114 may include a main mounting groove 1142 located at the welding area on the aluminum alloy base plate 110, and a mounting ring groove 1144 located on the periphery of the main mounting groove 1142, the depth of the mounting ring groove 1144 being less than the depth of the main mounting groove 1142. Moreover, the synthetic stone carrier block 120 may include a carrier body 122 installed in the main mounting groove 1142, and a carrier limiting ring 124 protruding from the periphery of the carrier body 122, the carrier limiting ring 124 being installed in the mounting ring groove 1144. Thus, the carrier mounting groove 114 can be configured as a stepped groove structure with a T-shaped cross-section; correspondingly, the synthetic stone carrier block 120 can be configured as a T-shaped cross-section structure, facilitating the locking and limiting of the synthetic stone carrier block 120 within the carrier mounting groove 114. Furthermore, both the main mounting groove 1142 and the mounting ring groove 1144 can be rectangular grooves, and both the carrier block body 122 and the carrier block limiting ring 124 can also be rectangular structures. Additionally, the carrier mounting groove 114 and the synthetic stone carrier block 120 can be set to corresponding shapes according to the shape of the connecting pad 34 of the device to be laser welded 30.

[0061] Furthermore, in this embodiment, the main mounting groove 1142 of the carrier mounting groove 114 can penetrate through the aluminum alloy base plate 110, thus making the main mounting groove 1142 a through groove, and the mounting annular groove 1144 a blind groove. This allows the two sides of the carrier block body 122 in the main mounting groove 1142 to correspond and align with the two sides of the aluminum alloy base plate 110, ensuring that the synthetic stone carrier block 120 supporting the connecting pad 34 of the device to be laser welded 30 has sufficient strength and support area. Alternatively, the main mounting groove 1142 of the carrier mounting groove 114 can also be a blind groove.

[0062] Furthermore, the thickness of the aluminum alloy base plate 110 can be 4.5-5.5 mm, and the depth of the main mounting groove 1142 can be the same as the thickness of the aluminum alloy base plate 110, so that the thickness of the synthetic stone carrier block 120 is also consistent with the thickness of the aluminum alloy base plate 110 (for example, both can be 5 mm). Moreover, the depth of the mounting ring groove 1144 can be half the depth of the main mounting groove 1142, for example, the depth of the mounting ring groove 1144 can be set to 2.5 mm, so that the bottom wall of the mounting ring groove 1144 has sufficient support strength.

[0063] In addition, such as Figures 7 to 12As shown, in some embodiments, the block limiting ring 124 is riveted or threaded into the mounting ring groove 1144. This means that the block limiting ring 124 on the periphery of the block body 122 of the synthetic stone block 120 can be connected to the bottom wall of the mounting ring groove 1144 on the periphery of the mounting main groove 1142 of the carrier mounting groove 114 through riveting or threading, thereby connecting the synthetic stone block 120 to the aluminum alloy base plate 110.

[0064] Specifically, the block limiting ring 124 may be provided with multiple first connecting holes 1242, and the bottom wall of the mounting ring groove 1144 is provided with multiple second connecting holes 116. Multiple connecting rivets 130 or multiple connecting screws are correspondingly inserted into the multiple first connecting holes 1242 and multiple second connecting holes 116. When both the block limiting ring 124 of the synthetic stone block 120 and the mounting ring groove 1144 of the carrier mounting groove 114 are rectangular, a first connecting hole 1242 can be provided at each of the four corners of the block limiting ring 124, and a second connecting hole 116 can be correspondingly provided at each of the four corners of the bottom wall of the mounting ring groove 1144 of the carrier mounting groove 114. The synthetic stone block 120 is installed in the carrier mounting groove 114 of the aluminum alloy base plate 110 by passing the connecting rivets 130 or connecting screws through the first connecting holes 1242 and the second connecting holes 116.

[0065] Furthermore, the first connecting hole 1242 can be configured as a stepped hole penetrating the block limiting ring 124 of the synthetic stone block 120, and the second connecting hole 116 can also be configured as a stepped hole penetrating the bottom wall of the mounting ring groove 1144, so that the two ends of the connecting rivet 130 or the connecting screw are respectively hidden in the first connecting hole 1242 of the block limiting ring 124 and the second connecting hole 116 of the bottom wall of the mounting ring groove 1144.

[0066] In addition, such as Figures 13 to 16 As shown, in some other embodiments, the synthetic stone carrier block 120 can be bonded to the carrier mounting groove 114. This can be achieved by using high-temperature resistant adhesive to bond the synthetic stone carrier block 120 to the carrier mounting groove 114, which is simple and convenient.

[0067] Furthermore, a first high-temperature resistant adhesive layer can be provided between the side of the block limiting ring 124 and the side wall of the mounting ring groove 1144, so that the side of the block limiting ring 124 and the side wall of the mounting ring groove 1144 can be bonded together by high-temperature resistant adhesive, thereby bonding the synthetic stone block 120 into the carrier mounting groove 114, so as to embed the synthetic stone block 120 into the aluminum alloy base plate 110.

[0068] In addition, a second high-temperature resistant adhesive layer 140 can be provided between the bottom surface of the block limiting ring 124 and the bottom wall of the mounting ring groove 1144, so that the bottom surface of the block limiting ring 124 and the bottom wall of the mounting ring groove 1144 can be bonded together by high-temperature resistant adhesive, thereby bonding the synthetic stone block 120 into the carrier mounting groove 114, so as to embed the synthetic stone block 120 into the aluminum alloy base plate 110.

[0069] In addition, a third high-temperature resistant adhesive layer can be provided between the side of the carrier block body 122 and the side wall of the mounting main groove 1142, so that the side of the carrier block body 122 and the side wall of the mounting main groove 1142 can be bonded together by high-temperature resistant adhesive, thereby bonding the synthetic stone carrier block 120 into the carrier mounting groove 114, so as to embed the synthetic stone carrier block 120 into the aluminum alloy base plate 110.

[0070] Furthermore, the synthetic stone carrier block 120 can be bonded to the carrier mounting groove 114 by at least one of the following methods: a first high-temperature resistant adhesive layer is provided between the side of the carrier block limiting ring 124 and the side wall of the mounting ring groove 1144; a second high-temperature resistant adhesive layer 140 is provided between the bottom surface of the carrier block limiting ring 124 and the bottom wall of the mounting ring groove 1144; and a third high-temperature resistant adhesive layer is provided between the side of the carrier block body 122 and the side wall of the mounting main groove 1142.

[0071] In addition, such as Figures 17 to 20 As shown, in some other embodiments, the synthetic stone carrier 120 can be magnetically connected to the carrier mounting slot 114. This allows the synthetic stone carrier 120 to be easily and conveniently bonded to the carrier mounting slot 114 via magnetic connection.

[0072] Specifically, a plurality of first magnets 1244 can be provided within the carrier limiting ring 124 of the synthetic stone carrier block 120, and a plurality of second magnets 118 can be correspondingly provided within the bottom wall of the mounting ring groove 1144 of the carrier mounting groove 114, with the magnetic poles of the opposing first magnets 1244 and second magnets 118 being opposite. The plurality of first magnets 1244 within the carrier limiting ring 124 and the plurality of second magnets 118 within the bottom wall of the mounting ring groove 1144 generate a magnetic attraction force, magnetically connecting the synthetic stone carrier block 120 to the carrier mounting groove 114.

[0073] Furthermore, to facilitate the placement of the first magnet 1244 within the carrier block limiting ring 124, multiple first mounting holes 11442 can be provided on the carrier block limiting ring 124, and the multiple first magnets 1244 can be embedded in the multiple first mounting holes 11442 one by one. Moreover, to facilitate the placement of the second magnet 118 within the bottom wall of the mounting ring groove 1144, multiple second mounting holes 1182 can be provided on the bottom wall of the mounting ring groove 1144, and the multiple second magnets 118 can be embedded in the multiple second mounting holes 1182 one by one. Furthermore, to prevent the first magnets 1244 and the second magnets 118 from falling off easily, high-temperature resistant adhesive can be applied to the first mounting holes 11442 and the second mounting holes 1182, respectively, to seal the first magnets 1244 and the second magnets 118 in the second mounting holes 1182.

[0074] Furthermore, both the first magnet 1244 and the second magnet 118 can be high-temperature resistant magnets. Both the first mounting hole 11442 and the second mounting hole 1182 can be circular holes with a radius of 3 mm and a depth of 1.5 mm; the shape of the first magnet 1244 corresponds to the shape of the first mounting hole 11442, and the shape of the second magnet 118 corresponds to the shape of the second mounting hole 1182, and both can have a radius of 3 mm and a thickness of 1 mm.

[0075] The composite carrier provided by this utility model combines the advantages of both aluminum alloy carriers and synthetic stone carriers. The main structure of the entire carrier is made of aluminum alloy, and the areas on the carrier where laser welding of the product is required (i.e., the welding area) are specially hollowed out. Synthetic stone blocks 120 are installed at these hollowed-out locations, and the synthetic stone blocks 120 can be combined with the aluminum alloy carrier body 100 in various ways. This optimizes the feasibility of laser welding of the product; optimizes the overall weight of the carrier, making it easier for personnel to handle; and reduces the procurement cost of the carrier.

[0076] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0077] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A composite carrier for laser welding, characterized by, include: The vehicle body includes an aluminum alloy base plate, at least one synthetic stone block disposed on the aluminum alloy base plate, and a plurality of positioning protrusions disposed on the aluminum alloy base plate. as well as, The vehicle cover plate includes a cover plate body corresponding to the aluminum alloy base plate, at least one welding clearance groove provided on the cover plate body and corresponding to the synthetic stone carrier block, and a plurality of positioning clearance holes provided on the cover plate body and corresponding to the plurality of positioning protrusions. The aluminum alloy base plate has at least one welding area, and the welding area is provided with a carrier mounting groove. The synthetic stone carrier block is installed in the carrier mounting groove and is used to correspond to the connection pad of the device to be laser welded.

2. The composite carrier for laser welding according to claim 1, characterized by, The vehicle mounting groove includes a main mounting groove located at the welding area on the aluminum alloy base plate, and a mounting ring groove located around the main mounting groove, wherein the depth of the mounting ring groove is less than the depth of the main mounting groove. The synthetic stone carrier includes a carrier body installed in the main mounting groove, and a carrier limiting ring protruding from the periphery of the carrier body, the carrier limiting ring being installed in the mounting ring groove.

3. The composite carrier for laser welding of claim 2, wherein, The main mounting groove penetrates the aluminum alloy base plate; The thickness of the aluminum alloy base plate is 4.5-5.5mm, and the depth of the mounting ring groove is half the depth of the mounting main groove.

4. The composite carrier for laser welding of claim 2, wherein, The carrier block limiting ring is riveted or threaded into the mounting ring groove.

5. The composite carrier for laser welding of claim 4, wherein, The carrier block limiting ring is provided with a plurality of first connecting holes, and the bottom wall of the mounting ring groove is provided with a plurality of second connecting holes. A plurality of connecting rivets or a plurality of connecting screws are respectively inserted into the plurality of first connecting holes and the plurality of second connecting holes.

6. The composite carrier for laser welding of claim 2, wherein, The synthetic stone carrier block is bonded to the carrier mounting slot.

7. The composite carrier for laser welding of claim 6, wherein, A first high-temperature resistant adhesive layer is provided between the side of the carrier block limiting ring and the side wall of the mounting ring groove; or / and, A second high-temperature resistant adhesive layer is provided between the bottom surface of the carrier block limiting ring and the bottom wall of the mounting ring groove; or / and, A third high-temperature resistant adhesive layer is provided between the side of the carrier block body and the side wall of the mounting main groove.

8. The composite carrier for laser welding of claim 2, wherein, The synthetic stone carrier is magnetically connected to the carrier mounting slot.

9. The composite carrier for laser welding of claim 8, wherein, The carrier block limiting ring is provided with a plurality of first magnets, and the bottom wall of the mounting ring groove is provided with a plurality of second magnets, with the magnetic poles of the first magnets and the second magnets opposite to each other.

10. The composite carrier for laser welding of claim 1, wherein, The aluminum alloy base plate has multiple alignment marks around its perimeter, and each of the multiple alignment marks corresponds one-to-one with a multiple corner of the vehicle cover plate.

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