WO2023061139A1 - 电路板组件焊接装置及电路板组件焊接方法 - Google Patents

电路板组件焊接装置及电路板组件焊接方法 Download PDF

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Publication number
WO2023061139A1
WO2023061139A1 PCT/CN2022/118796 CN2022118796W WO2023061139A1 WO 2023061139 A1 WO2023061139 A1 WO 2023061139A1 CN 2022118796 W CN2022118796 W CN 2022118796W WO 2023061139 A1 WO2023061139 A1 WO 2023061139A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
workbench
chassis
bearing seat
board assembly
Prior art date
Application number
PCT/CN2022/118796
Other languages
English (en)
French (fr)
Inventor
郭健强
罗文君
李明川
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP22857075.0A priority Critical patent/EP4194132A1/en
Publication of WO2023061139A1 publication Critical patent/WO2023061139A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/0008Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0016Brazing of electronic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/005Soldering by means of radiant energy
    • B23K1/0056Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • B23K3/087Soldering or brazing jigs, fixtures or clamping means
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/36Assembling printed circuits with other printed circuits
    • H05K3/361Assembling flexible printed circuits with other printed circuits
    • H05K3/363Assembling flexible printed circuits with other printed circuits by soldering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/36Electric or electronic devices
    • B23K2101/42Printed circuits
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10621Components characterised by their electrical contacts
    • H05K2201/10666Plated through-hole for surface mounting on PCB
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/01Tools for processing; Objects used during processing
    • H05K2203/0147Carriers and holders
    • H05K2203/0165Holder for holding a Printed Circuit Board [PCB] during processing, e.g. during screen printing
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/02Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
    • H05K2203/0278Flat pressure, e.g. for connecting terminals with anisotropic conductive adhesive
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/06Lamination
    • H05K2203/068Features of the lamination press or of the lamination process, e.g. using special separator sheets
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/10Using electric, magnetic and electromagnetic fields; Using laser light
    • H05K2203/107Using laser light
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3494Heating methods for reflowing of solder

Definitions

  • the present application relates to the technical field of welding equipment, in particular to a circuit board assembly welding device and a circuit board assembly welding method.
  • the mobile terminal usually includes components such as a screen assembly, a housing, a battery, and a main board.
  • the battery and the main board are arranged in the space surrounded by the screen assembly and the housing.
  • the main board is usually a printed circuit board (PCB for short), and the main board is provided with Various components, some components of the mobile terminal need to be electrically connected to certain components on the motherboard. Wherein, other components of the mobile terminal may be electrically connected to components on the main board through a flexible printed circuit (FPC for short).
  • FPC flexible printed circuit
  • laser welding technology can be used to first weld the FPC on the main board through welding equipment, and then connect the FPC to other components of the mobile terminal.
  • each welding can only realize the welding connection between a single FPC and a single PCB, and the welding efficiency is low.
  • the present application provides a circuit board assembly welding device and a circuit board assembly welding method.
  • the circuit board assembly welding device can respectively realize the welding connection of multiple FPCs and multiple PCBs at one time, and the welding efficiency is high.
  • the present application provides a circuit board assembly welding device, including a chassis, a pressure plate assembly and at least two bearing seats, the pressure plate assembly is relatively arranged above the chassis, the bearing seat is installed on the chassis, and the bearing seat is located between the pressure plate assembly and the chassis.
  • the bearing seat includes a workbench, the workbench is located on the side of the bearing seat facing the pressure plate assembly, the workbench is used to place the circuit board assembly, and the pressure plate assembly is used to be pressed on the circuit board assembly located on the workbench;
  • the at least two bearing seats include at least one adjustable bearing seat, and the distance between the worktable and the chassis of the adjustable bearing seat can be adjusted.
  • the circuit board assembly welding device provided by this application is provided with at least two bearing seats on the chassis, the bearing seats are located in the space between the chassis and the pressure plate assembly, the bearing seats include a workbench, and the workbench is located on one side of the bearing seat facing the pressure plate assembly.
  • the pressure plate assembly is pressed on the circuit board assembly on the workbench to provide pressure for the circuit board assembly and realize the soldering connection of the circuit board assembly.
  • the distance between the worktable of the adjustable bearing seat and the chassis can be adjusted, and further, by adjusting the distance between the workbench of the adjustable bearing seat and the pressing plate assembly, different thicknesses can be realized Solder connections between circuit board components.
  • the welding device meets at least two sets of circuit board components for a single welding connection, and the welding efficiency is high.
  • the bearing seat further includes a support frame connected between the workbench and the chassis, and the height of the workbench relative to the chassis can be adjusted by adjusting the support frame of the bearing seat.
  • the workbench By installing the support frame on the chassis, the workbench is supported above the chassis by the support frame, so that a welding working space is formed between the workbench and the pressing plate assembly. Moreover, the height of the workbench can be adjusted by the support frame of the adjustable bearing seat, so as to adjust the distance between the workbench and the pressing plate assembly according to the thickness of different circuit board assemblies, so that the pressure applied on the circuit board assembly meets the welding pressure requirement.
  • the support frame of the adjustable bearing seat includes at least one support column, and the support column is supported on the chassis.
  • the workbench of the adjustable bearing seat is supported by the support column, and the height of the workbench relative to the chassis is adjusted by the support column to adjust the height of the workbench and the distance between the workbench and the pressing plate assembly.
  • the workbench of the adjustable bearing base is fixed on the top of the support column, and the height of the support column of the adjustable bearing base can be adjusted.
  • the support column By fixing the workbench of the adjustable bearing seat on the top of the support column away from the chassis, the support column is set as a height-adjustable support column. By adjusting the height of the support column, the support column drives the workbench to move, and the height of the workbench is adjusted. .
  • the workbench of the adjustable bearing base is movably connected to the support column and can move along the axial direction of the support column, and the workbench of the adjustable bearing base can be fixed at different positions of the support column.
  • the workbench is movably connected to the support column, and the support column guides the movement of the workbench, making the workbench move along its axial direction, and the workbench can be fixed on the support Different parts of the column to adjust the height of the workbench relative to the chassis.
  • a stretchable elastic member is sheathed on the outside of the support column of the adjustable bearing seat, the support column is passed through the workbench, and the two ends of the elastic member are in contact with the workbench and the chassis respectively.
  • a stretchable elastic piece By passing the support column in the workbench, a stretchable elastic piece is sleeved outside the support column, and the elastic piece is placed between the workbench and the chassis. By adjusting the expansion and contraction of the elastic piece, the elastic piece drives the workbench to move. , to adjust the height of the workbench.
  • a pressure sensor is arranged inside the workbench of the adjustable bearing seat.
  • the pressure sensor By arranging a pressure sensor in the workbench of the adjustable bearing seat, the pressure sensor detects the pressure on the circuit board assembly to adjust the height of the workbench, so that the pressure on the circuit board assembly is within an appropriate range.
  • the at least two bearing seats include a fixed bearing seat, and the distance between the worktable and the chassis of the fixed bearing seat is constant.
  • the height of the workbench of the fixed bearing base cannot be adjusted.
  • the height of the workbench of each adjustable bearing base can be adjusted based on the workbench of the fixed bearing base.
  • the circuit board components can be placed on a fixed bearing seat, so as to simplify the process of adjusting welding pressure and improve welding efficiency.
  • the welding device can be modified on the basis of the original welding device with a fixed bearing seat.
  • a pressure sensor is provided on the pressing plate assembly, or a pressure sensor is provided in the worktable on which the bearing seat is fixed.
  • the platen assembly includes a base plate, and the base plate is disposed opposite to the chassis, and projections of worktables of all bearing seats on the base plate are located within the coverage of the base plate.
  • the substrate is used to press the circuit board assembly on the workbench of each bearing seat, and the substrate is used to transmit the laser light emitted by the laser so that the laser light is irradiated to the circuit board assembly on the workbench s surface.
  • the pressing plate assembly further includes at least two dividing plates, each dividing plate is arranged on the side surface of the substrate facing the chassis, and each dividing plate corresponds to each workbench of each bearing seat one by one. , the divider plate is pressed on the circuit board assembly located on the workbench;
  • each dividing plate corresponds to the workbench of each bearing seat one by one, and the circuit board assembly is pressed between the dividing plate and the workbench.
  • the strength of the pressing plate assembly can be increased by arranging the dividing plate, the pressure bearing capacity of the pressing plate assembly can be improved, and the reliability of the welding device can be improved.
  • the space between the adjacent divider plates forms an avoidance space, which can avoid some structural components on the circuit board assembly that are located outside the welding area.
  • the welding device further includes at least one laser, the at least one laser is arranged on the side of the pressing plate assembly away from the chassis, and the laser emitted by the at least one laser passes through the pressing plate assembly and irradiates the circuit board assembly on the workbench.
  • the laser emitted by the laser passes through the platen assembly and irradiates the circuit board assembly on the workbench, and the circuit board assembly is heated by the energy of the laser to heat up the circuit board assembly.
  • Solder paste on the PCB The melted solder paste is squeezed and overflows to the surface of the FPC facing away from the PCB to realize the soldering connection between the FPC and the PCB.
  • the welding device includes at least two lasers, each laser is disposed on a side of the platen assembly away from the chassis, and the light-emitting surfaces of each laser correspond to each workbench one by one.
  • each laser corresponds to each workbench of each bearing seat one by one, and the laser emitted by each laser is concentrated on each circuit board assembly, which can improve the heating efficiency of the circuit board assembly and improve the circuit.
  • the welding speed of the board assembly By arranging multiple lasers on the platen assembly, each laser corresponds to each workbench of each bearing seat one by one, and the laser emitted by each laser is concentrated on each circuit board assembly, which can improve the heating efficiency of the circuit board assembly and improve the circuit. The welding speed of the board assembly.
  • the welding device includes at least two lasers, and the at least two lasers include at least one first laser and at least one second laser;
  • the first laser is set on the side of the platen assembly away from the chassis; the second laser is set on the side of the platen assembly facing the chassis, and the second laser is located in the gap between adjacent bearing seats.
  • the laser light emitted by the first laser passes through the platen assembly and irradiates the circuit board assembly on each workbench for heating the circuit board assembly;
  • a second laser is set on one side of the PCB, the second laser is located in the gap between adjacent bearing seats, and the laser emitted by the second laser is irradiated to the area on the PCB located in the gap between adjacent workbenches, which is used for PCB inspection. cutting.
  • the welding device includes a plurality of lasers, and the plurality of lasers includes at least two third lasers, each third laser is set corresponding to each bearing seat, and the third laser is located between the workbench and the chassis , the light-emitting surface of the third laser faces the workbench, and the laser light emitted by the third laser is irradiated to the circuit board assembly through the workbench.
  • the third laser By setting the third laser on each bearing seat, the third laser is located under the workbench, the laser emitted by the third laser is irradiated to the circuit board assembly on the workbench through the workbench, and passes through the laser above the pressure plate assembly and the laser below the workbench.
  • the third laser heats both surfaces of the circuit board assembly simultaneously, which can improve the heating efficiency of the circuit board assembly, increase the welding speed of the circuit board assembly, and improve the welding efficiency of the welding device.
  • a heater is arranged in the workbench.
  • the heaters cooperate with the laser on the platen assembly to heat both sides of the circuit board assembly at the same time, improve the heating efficiency and welding speed of the circuit board assembly, and improve the welding performance of the welding device. efficiency.
  • circuit board assembly welding method which is applied to the above circuit board assembly welding device, including:
  • the first circuit board is respectively placed on each bearing base, and the second circuit board is pasted on the first circuit board of each workbench, and then the pressure plate assembly is pressed on each workbench.
  • the second circuit board on the workbench is used to pre-press each circuit board assembly and position the pressing plate assembly. Afterwards, adjust the pressure of each adjustable bearing seat on the workbench according to the pressure value on the workbench of each adjustable bearing seat.
  • each bearing seat is an adjustable bearing seat
  • the pressure plate assembly is pressed on the second circuit board on each workbench, and the distance between the workbench and the chassis of each adjustable bearing seat is adjusted. spacing, so that the bearing pressure on each workbench is within the preset pressure range, including:
  • the pressure plate assembly presses and installs each second circuit board so that the bearing pressure on at least one of the working tables is within the preset pressure range, and the bearing pressure on the remaining working tables is less than the minimum pressure value within the preset pressure range, or make all the working tables
  • the bearing pressure on the platform is less than the minimum pressure value within the preset pressure range
  • each bearing seat includes a fixed bearing seat, and the pressing plate assembly is pressed on the second circuit board on each workbench, and the distance between the workbench and the chassis of each adjustable bearing seat is adjusted. spacing, so that the bearing pressure on each workbench is within the preset pressure range, including:
  • the pressure plate assembly presses and installs each second circuit board, so that the bearing pressure on the worktable of the fixed bearing seat is within the preset pressure range, and the bearing pressure on the workbench of each adjustable bearing seat is less than the minimum pressure value within the preset pressure range ;
  • each adjustable bearing seat The distance between the worktable of each adjustable bearing seat and the chassis is increased, so that the bearing pressure on the workbench of each adjustable bearing seat is within a preset pressure range.
  • one of the first circuit board and the second circuit board is a printed circuit board, and the other is a flexible circuit board.
  • FIG. 1 is a schematic diagram of an exploded structure of an electronic device provided in an embodiment of the present application
  • Fig. 2 is the structural representation of the PCB that the embodiment of the present application provides;
  • FIG. 3 is a schematic structural diagram of a circuit board assembly provided in an embodiment of the present application.
  • FIG. 4 is a partial sectional structural view of the FPC provided by the embodiment of the present application.
  • FIG. 5 is a partial cross-sectional structural view of the FPC and PCB welding connection provided by the embodiment of the present application.
  • Fig. 6 is a circuit board assembly welding device in the related art
  • FIG. 7 is a schematic diagram of a soldering state of a circuit board assembly in the related art
  • FIG. 8 is a schematic structural diagram of a circuit board assembly welding device provided in Embodiment 1 of the present application.
  • Fig. 9 is a schematic diagram of welding alignment of two groups of circuit board components provided in Embodiment 1 of the present application.
  • Fig. 10 is a schematic structural view of another welding device provided in Embodiment 1 of the present application.
  • FIG. 11 is a schematic structural view of a third welding device provided in Embodiment 2 of the present application.
  • FIG. 12 is a schematic structural view of a fourth welding device provided in Embodiment 2 of the present application.
  • Fig. 13 is a schematic structural view of a fifth welding device provided in Embodiment 3 of the present application.
  • Fig. 14 is a schematic structural view of the sixth welding device provided in Embodiment 3 of the present application.
  • Fig. 15 is a schematic structural diagram of a seventh welding device provided in Embodiment 4 of the present application.
  • Fig. 16 is a schematic structural view of the eighth welding device provided in Embodiment 4 of the present application.
  • FIG. 17 is a schematic flowchart of a circuit board component welding method provided in Embodiment 5 of the present application.
  • 11-chassis 12-pressure plate assembly; 13-bearing seat; 13a-adjustable bearing seat; 13b-fixed bearing seat; 14-pressure sensor; 15-laser; 15a-first laser; 15b-second laser; 15c- a third laser;
  • 21-circuit board assembly 21a-first circuit board; 21b-second circuit board; 22-screen assembly; 23-middle frame; 24-back shell;
  • 211a-welding area 2111-components; 2112-metal wire; 2113-pad; 2114-solder paste; 2121-substrate; 2121a-through hole; 2122-welding pin;
  • Handheld wireless communication equipment desktop computer, notebook computer (laptop), tablet computer (Table), ultra-mobile personal computer (ultra-mobile personal computer, UMPC), handheld computer, walkie-talkie, netbook, POS machine, personal digital assistant (personal Electronic devices such as digital assistants (PDAs) usually have a plurality of components, some of which need to be electrically connected to realize the functions of the corresponding components.
  • PDAs digital assistants
  • FIG. 1 is a schematic diagram of an exploded structure of an electronic device provided by an embodiment of the present application.
  • the electronic device 2 taking the electronic device 2 as a mobile phone as an example, the electronic device 2 generally includes a screen assembly 22 , a middle frame 23 , a circuit board assembly 21 and a rear case 24 .
  • the screen assembly 22 has a display area (not shown in the figure) for displaying image information.
  • the middle frame 23 is disposed between the screen assembly 22 and the rear case 24 .
  • the screen assembly 22 , the middle frame 23 and the rear case 24 together form an accommodating space, and the circuit board assembly 21 is disposed in the accommodating space.
  • the circuit board assembly 21 includes a printed circuit board (Printed Circuit Board, PCB) and a flexible circuit board (Flexible Printed Circuit, FPC).
  • PCB printed Circuit Board
  • FPC Flexible Printed Circuit
  • FIG. 2 is a schematic structural diagram of a PCB provided by an embodiment of the present application.
  • the PCB 211 can be single-sided or double-sided.
  • the single-sided means that one side of the PCB 211 is provided with components 2111 .
  • the double-sided means that both sides of the PCB 211 are equipped with components 2111 .
  • the PCB 211 may be a radio frequency (Radio Frequency, RF) board or an application processor (Application Processor, AP) board.
  • the radio frequency board may be but not limited to be used to carry radio frequency integrated circuit (RFIC), radio frequency power amplifier (radio frequency power amplifier, RFPA) and wireless fidelity (wireless fidelity, WIFI) chips and the like.
  • the application processor board can, but is not limited to, be used to carry system on chip (SOC) components, double data rate (double data rate, DDR) memory, main power management unit (PMU) and auxiliary power management chips etc.
  • SOC system on chip
  • DDR double data rate
  • the PCB211 is, for example, the main board in the electronic device 2, and the components 2111 provided on the PCB211 may include but not limited to a processor, an antenna module, a Bluetooth module, a WiFi module, a Global Positioning System (Global Positioning System, GPS) module, a power supply and a charging module. module, graphics processing module, screen display and operation module, etc.
  • a processor for example, the main board in the electronic device 2
  • the components 2111 provided on the PCB211 may include but not limited to a processor, an antenna module, a Bluetooth module, a WiFi module, a Global Positioning System (Global Positioning System, GPS) module, a power supply and a charging module. module, graphics processing module, screen display and operation module, etc.
  • GPS Global Positioning System
  • the FPC 212 is used to electrically connect some functional parts of the electronic device 2 to corresponding components 2111 on the PCB 211 .
  • the screen component 22 is electrically connected to the screen display and operation module provided on the PCB211 through the FPC212
  • the camera module (not shown in the figure) is electrically connected to the graphic processing module provided on the PCB211 through the FPC212.
  • FPC212 and PCB211 can be connected through a board-to-board (BTB) connector.
  • BTB board-to-board
  • the layout of the components 2111 is not conducive to reducing the overall thickness of the electronic device 2 , and cannot meet the development trend of thinning and thinning the electronic device 2 .
  • FIG. 3 is a schematic structural diagram of a circuit board assembly provided by an embodiment of the present application.
  • FPC212 on board (FOB) technology is usually used to solder and connect FPC212 and PCB211, and FPC212 is attached to PCB211
  • the thickness of the weld between the two is relatively thin, which can reduce the overall thickness of the circuit board assembly 21, reduce the occupied space of the circuit board assembly 21, rationalize the layout of the components 2111 in the electronic device 2, and reduce the thickness of the electronic device 21.
  • a soldering area 211 a is provided on the PCB 211 , and the FPC 212 is soldered in the soldering area 211 a on the PCB 211 .
  • a plurality of solder pads 2113 are arranged in the soldering area 211a of the PCB 211 , and a plurality of metal wires 2112 are arranged on the PCB 211 , and each solder pad 2113 is electrically connected to each component 2111 through the metal wire 2112 .
  • the material constituting the pad 2113 and the metal wire 2112 may be, but not limited to, copper or copper alloy.
  • FIG. 4 is a partial cross-sectional structure diagram of the FPC provided by the embodiment of the present application.
  • FPC212 includes a substrate 2121, which is a flexible dielectric layer, and the flexible dielectric layer has good flexibility, so that FPC212 can bend when subjected to external force.
  • a plurality of soldering pins 2122 and a plurality of metal traces 2123 are arranged on the substrate 2121, and each metal trace 2123 is respectively connected to each soldering pin 2122, and each soldering pin 2122 on the FPC212 is used to connect with a pad on the PCB211 2113 welding connection, in order to realize mutual conduction between FPC212 and PCB211.
  • the soldering pins 2122 on the FPC212 are usually concentrated on the area near the end of the FPC212.
  • the material that constitutes the flexible dielectric layer of the substrate 2121 of FPC212 includes but not limited to polyimide (Polyimide, PI), thermoplastic polyimide (Thermoplastic polyimide, TPI) or polyester (Polyethylene terephthalate, PET ).
  • the materials constituting the welding pins 2122 and the metal traces 2123 on the FPC 212 may be, but not limited to, copper or copper alloy.
  • the substrate 2121 of the FPC212 is provided with a through hole 2121a, and the through hole 2121a penetrates both sides of the substrate 2121 in the thickness direction.
  • the FPC212 is formed.
  • the solder pins 2122 are welded, and the solder pins 2122 extend from the inside of the through hole 2121a to cover the two sides of the substrate 2121 around the through hole 2121a.
  • FIG. 5 is a partial cross-sectional structure diagram of the solder connection between the FPC and the PCB provided by the embodiment of the present application.
  • solder paste 2114 can be pre-printed on pad 2113 of PCB211.
  • solder paste 2114 can contain metal tin and flux, and FPC212 Attach to the side surface of the PCB 211 provided with the pad 2113 , so that the welding pin 2122 on the FPC 212 is aligned with the pad 2113 on the PCB 211 and contacts the solder paste 2114 on the pad 2113 .
  • the solder paste 2114 is melted, and the melted solder paste 2114 is extruded on the FPC212 Under the action, it flows along the through hole 2121a on the FPC212 and overflows from the other side of the FPC212. After the solder paste 2114 overflows and solidifies, the fixed connection between the FPC212 and the PCB211 is realized.
  • the FPC 212 is electrically connected to the PCB 211 through the solder pins 2122 and the solder paste 2114 in the through hole 2121a.
  • solder paste 2114 since the flux contained in the solder paste 2114 is volatile, before soldering the PCB211 and FPC212, a layer of flux can also be applied on the solder paste 2114 to remove oxides on the surface of the solder paste 2114 and improve the soldering performance of the PCB211. Soldering performance between FPC212 and FPC212.
  • FIG. 6 is a circuit board assembly soldering device in the related art.
  • the circuit board assembly welding device (hereinafter referred to as the welding device 3) comprises a chassis 31, a pressing plate 32 positioned above the chassis 31, a laser 34 installed above the pressing plate 32, and a bearing seat 33 installed on the chassis 31.
  • 33 includes a support column 332 and a workbench 331 , the bottom end of the support column 332 is supported on the chassis 31 , the workbench 331 is located at the top of the support column 332 , and the workbench 331 faces the pressing plate 32 .
  • PCB211 When soldering, PCB211 is first placed on the workbench 331, so that the surface to be welded of PCB211 faces the pressure plate 32 upwards, that is, the side surface of the PCB211 provided with the welding area 211a faces the pressure plate 32 upwards. A layer of flux is coated on the surface of the solder paste 2114 on each pad 2113 in the soldering area 211 a, and then the FPC 212 is stacked on the PCB 211 .
  • FIG. 7 is a schematic diagram of a soldering state of a circuit board assembly in the related art.
  • the area where the end of the FPC212 is provided with soldering pins 2122 corresponds to the soldering area 211a of the PCB211, and each soldering pin 2122 on the FPC212 is aligned with each pad 2113 on the PCB211.
  • the pressing plate 32 moves down along the Z direction and is placed on the FPC212 placed on the workbench 331.
  • the laser light emitted by the laser 34 heats the FPC212, so that the solder paste 2114 on the pad 2113 of the PCB211 melts and overflows to the back of the FPC212.
  • solder and fix FPC212 and PCB211 On one side surface of PCB211, solder and fix FPC212 and PCB211.
  • the welding device 3 shown in Figure 6 is used to weld two FPC212 on two PCB211 at the same time, the two sets of circuit board components 21 are placed on the workbench 331, the pressure plate 32 is pressed on the FPC212 of the two groups of circuit board assemblies 21 at the same time. Due to the difference in the thickness of the two FPC212, the pressure on the two FPC212 is different, and the welding status of the two FPC212 is inconsistent, which will lead to at least one of them. The assembly circuit board assembly 21 cannot be used normally or even be damaged.
  • the solder paste 2114 on the PCB 211 of one set of circuit board assemblies 21 does not penetrate both sides of the FPC 212 , resulting in weak soldering of the set of circuit board assemblies 21 , and the set of circuit board assemblies 21 cannot meet the use requirements.
  • the solder paste 2114 on the PCB211 of the two groups of circuit board assemblies 21 all penetrates both sides of the FPC212, but one of the circuit board assemblies 21 is overstressed, resulting in the metal traces 2123 on the FPC212 or on the PCB211.
  • the metal wire 2112 is crushed, and even the board body of the PCB 211 or the substrate 2121 of the FPC 212 is crushed, causing the circuit board assembly 21 to be damaged.
  • the embodiment of the present application provides a circuit board assembly welding device.
  • the circuit board assembly welding device provided in the embodiment of the present application is provided with at least two bearing seats, and the bearing seats include at least one adjustable bearing seat, The height of the adjustable bearing base can be adjusted, which can meet the soldering requirements of different circuit board components.
  • the single welding of the welding device can realize the welding connection of at least two groups of circuit board components, and can improve the welding efficiency of the circuit board components.
  • circuit board component welding device provided by the embodiment of the present application will be introduced in detail below.
  • FIG. 8 is a schematic structural diagram of a circuit board assembly welding device provided in Embodiment 1 of the present application.
  • the circuit board assembly welding device (hereinafter referred to as welding device 1) provided by this embodiment includes a chassis 11, a pressing plate assembly 12 and a bearing seat 13, and the pressing plate assembly 12 is relatively arranged above the chassis 11.
  • the platen assembly 12 and the chassis 11 are arranged oppositely in a vertical space, for example, the chassis 11 may be located on the ground, and the platen assembly 12 is located above the chassis 11 in the vertical direction.
  • Each bearing seat 13 is installed on the chassis 11 , and the bearing seat 13 is located in the space between the pressing plate assembly 12 and the chassis 11 .
  • the bearing base 13 includes a support frame 132 and a worktable 131 , the support frame 132 is supported on the chassis 11 , the workbench 131 is installed on the support frame 132 , and the workbench 131 is located on the side of the support frame 132 facing the platen assembly 12 .
  • a working space is formed between the workbenches 131 of 13, and the circuit board assembly 21 is located in the working space when soldering is performed.
  • the circuit board assembly 21 is placed on the workbench 131 of the bearing seat 13, the chassis 11 assembly is pressed on the circuit board assembly 21 of the workbench 131, and the circuit board placed on the workbench 131 is paired by the welding device 1.
  • the board assembly 21 is heated to melt the solder paste 2114 on the circuit board assembly 21, and, through the pressure of the pressure plate assembly 12 on the circuit board assembly 21, the melted solder paste 2114 is squeezed and flowed. After the solder paste 2114 is solidified, the circuit The plate assembly 21 is firmly welded.
  • the circuit board assembly 21 includes a first circuit board 21a and a second circuit board 21b.
  • one of the first circuit board 21a and the second circuit board 21b is PCB211, and the other is FPC212.
  • the first circuit board 21a and the second circuit board 21b can both be PCB211;
  • the two circuit boards 21b may both be FPC212, which is not limited in this embodiment.
  • the first circuit board 21 a and the second circuit board 21 b one of which is a PCB 211 and the other is an FPC 212 are taken as an example for description.
  • the workbench 131 is usually provided with a positioning area (not shown in the figure), the first circuit board 21a is placed in the positioning area on the workbench 131,
  • the welding device 1 may be provided with an identification and alignment module (not shown in the figure), and the identification and alignment module is used to determine whether the first circuit board 21a is positioned accurately, so as to ensure the alignment of the circuit board assembly 21. welding performance.
  • the second circuit board 21b is stacked on the first circuit board 21a to ensure that the second circuit board 21b and the first circuit board 21a are aligned accurately, and then the pressing plate assembly 12 presses down the second circuit board 21a.
  • the board 21b generates pressure on the second circuit board 21b and the first circuit board 21a.
  • the welding device 1 heats the first circuit board 21a and the second circuit board 21b, and the solder paste 2114 on the pad 2113 of the PCB211 melts.
  • the melted solder paste 2114 is squeezed and flows along the through hole 2121 a on the FPC 212 , and overflows from the side of the FPC 212 facing away from the PCB 211 .
  • a group of circuit board assemblies 21 can be placed on the workbench 131 , so that at least two groups of circuit board assemblies 21 can be soldered and connected at the same time.
  • FIG. 9 is a schematic diagram of welding alignment of two sets of circuit board assemblies provided in Embodiment 1 of the present application.
  • the second circuit board 21b is FPC212 as an example, the PCB211 on the two bearing seats 13 is placed side by side, and the two FPC212 can be respectively placed on the two PCB211 from the other side of the two PCB211 away from each other, that is, the two FPC212 respectively The sides away from each other from the two bearing seats 13 are placed on the workbenches 131 of each group.
  • each welding pin 2122 on the FPC212 is aligned with each pad 2113 on the PCB211.
  • each FPC212 can be placed on each workbench 131 at first, and the PCB211 is stacked on each FPC212, and the PCB211 is positioned on the pressing plate On the component 12 side, for FPC212 with different thicknesses, the FPC212 is moved by moving the workbench 131 to adjust the bonding pressure between the FPC212 and the PCB211, so as to avoid damage to the PCB211 when the workbench 131 is moved.
  • each adjustable bearing seat 13a can be movably installed on the chassis 11, so as to adjust each adjustable bearing seat according to the distance between the welding areas 211a on the PCB211 13a, so that the worktables 131 of each adjustable bearing seat 13a correspond to each welding area 211a on the PCB211 one by one, so that each FPC212 on each workbench 131 is correspondingly welded in each welding area 211a on the PCB211 .
  • all bearing seats 13 installed on the chassis 11 are adjustable bearing seats 13a, and the support frame 132 of the adjustable bearing seats 13a can adjust the position of the workbench 131 relative to the chassis 11. high.
  • the thickness of FPC212 cannot be completely consistent, and there is usually a difference in thickness between different FPC212s.
  • To adjust the height of the workbench 131 and control the distance between the pressure plate assembly 12 and the workbench 131 it is necessary to ensure that the pressure on the circuit board assembly 21 is within an appropriate range.
  • the pressure on the circuit board assembly 21 should be able to squeeze the melted solder paste 2114 on the PCB211 to the side of the FPC212 facing away from the PCB211, so as to ensure that the FPC212 and the PCB211 are welded firmly. Moreover, the pressure on the circuit board assembly 21 should not be too large, so as not to damage the structure of the FPC212 or PCB211.
  • each circuit board assembly 21 is respectively placed on the workbench 131 of each adjustable bearing seat 13a, the pressing plate assembly 12 moves down a certain distance, for example, the pressing plate assembly 12 moves to the first position close to each circuit board assembly 21.
  • the pressing plate assembly 12 moves to the first position close to each circuit board assembly 21.
  • the initial height of the workbench 131 of each adjustable bearing seat 13a can be kept consistent, that is, the distance between the workbench 131 of each adjustable bearing seat 13a and the chassis 11 is all equal, to be placed on each workbench 131
  • the pressure plate assembly 12 is moved down a certain distance. At this time, the distance between the pressure plate assembly 12 and the circuit board assembly 21 with the largest thickness in each circuit board assembly 21 is the closest, and the circuit board assembly 21 with the largest thickness is for example It is the circuit board assembly 21 with the largest thickness of the FPC 212 .
  • the workbench 131 of each adjustable bearing seat 13 a is raised until the pressure on each circuit board assembly 21 is within an appropriate range.
  • the pressure on the circuit board assembly 21 with the largest thickness may be within an appropriate range, while the pressure on the rest of the circuit board assemblies 21 is less than the required pressure.
  • the height of the workbench 131 where the board assembly 21 is located makes the pressure on the rest of the circuit board assemblies 21 within an appropriate range.
  • the platen assembly 12 can also be a fixed platen assembly 12, or the platen assembly 12 can be a liftable platen assembly 12, but the position of the platen assembly 12 is fixed.
  • the height of the worktable 131 of 13a realizes that each circuit board assembly 21 is pressed between each workbench 131 and the pressing plate assembly 12 respectively.
  • the support frame 132 of the adjustable bearing seat 13a includes at least one support column 1321, the support column 1321 is supported on the chassis 11, one end of the support column 1321 is installed on the chassis 11, and the workbench 131 is installed on the chassis 11.
  • the other end of the support column 1321 In this embodiment, the end of the support column 1321 installed on the chassis 11 is defined as the bottom end of the support column 1321 , and the end of the support column 1321 connected to the workbench 131 is defined as the top end of the support column 1321 .
  • the support column 1321 can be vertically supported on the chassis 11 , and the axis of the support column 1321 is perpendicular to the direction of the board surface of the chassis 11 .
  • the support frame 132 may include four support pillars 1321 , and the four support pillars 1321 may be respectively disposed near the four corners of the workbench 131 .
  • the cross-sectional shape of the workbench 131 can also be approximately triangular, pentagonal, hexagonal or octagonal, etc.
  • the support frame 132 supported between the workbench 131 and the chassis 11 can include three, five, There are six or eight supporting columns 1321 , and each supporting column 1321 can be arranged at intervals and near the edge of the workbench 131 .
  • the support column 1321 is a telescopic support column 1321, by adjusting the extension height of the support column 1321, the height of the workbench 131 of the adjustable bearing seat 13a can be changed.
  • the support column 1321 may be a hydraulic rod
  • the support column 1321 includes a rod barrel and a movable piston rod inserted in the rod barrel
  • the workbench 131 may be fixedly connected to the top end of the piston rod.
  • the piston rod By controlling the volume and pressure of the hydraulic oil entering the rod barrel, the piston rod is moved along the axial direction of the rod barrel, and the movement of the piston rod drives the workbench 131 to rise and fall.
  • the support column 1321 may be other types of retractable structures.
  • the distance between the workbench 131 and the chassis 11 can also be adjusted by way of electromagnetic driving.
  • one of the workbench 131 and the chassis 11 is provided with a magnetic part (not shown in the figure), and the other is provided with a driving coil (not shown in the figure), by adjusting the size of the current passed into the driving coil, The magnetic force between the magnetic part and the driving coil is changed, and the worktable 131 is driven to move by the magnetic force.
  • the driving coil can be arranged in the position opposite to the workbench 131 in the chassis 11.
  • the magnetic force between the workbench 131 and the chassis 11 changes, the magnetic force drives the workbench 131 to rise or fall.
  • the workbench 131 exerts force on the supporting column 1321 , and then makes the supporting column 1321 extend or shorten.
  • the worktable 131 is fixed relative to the support column 1321, and the worktable 131 is moved by the expansion and contraction of the support column 1321, in other embodiments, the support column 1321 itself
  • the height can be fixed, and the workbench 131 can move relative to the support column 1321 , and the workbench 131 can be fixed at different positions of the support column 1321 .
  • FIG. 10 is a schematic structural diagram of another welding device provided in Embodiment 1 of the present application.
  • the support column 1321 of the adjustable bearing seat 13a can be installed in the workbench 131 (not shown in the figure), and the outside of the support column 1321 is covered with a telescopic
  • the elastic piece 1322, the two ends of the elastic piece 1322 abut against the workbench 131 and the chassis 11 respectively, the workbench 131 is supported on the elastic piece 1322, by adjusting the expansion and contraction of the elastic piece 1322, the height of the workbench 131 is adjusted, so that the work
  • the platform 131 is located at different positions on the support column 1321 .
  • the support column 1321 is, for example, a threaded rod
  • the elastic member 1322 is a spring sheathed outside the threaded rod.
  • the threaded rod passes through the workbench 131 , and the two ends of the spring abut against the chassis 11 and the workbench 131 respectively. During this period, the height of the workbench 131 is adjusted by adjusting the stretching amount of the spring.
  • the threaded rod threaded in the workbench 131 can guide the movement of the workbench 131, and the threaded rod plays a role of supporting and limiting the spring with weaker rigidity, which can improve the speed of the spring.
  • the strength of the spring improves the stability of the spring during the expansion and contraction process, limits the expansion and contraction movement of the spring along the axial direction of the screw rod, and ensures the accuracy of the movement of the worktable 131 driven by the spring.
  • the elastic member 1322 can always be in a compressed state, and the elastic force of the elastic member 1322 has an upward support force on the workbench 131, which can increase the workbench 131 and the pressing plate assembly. 12 to ensure that the workbench 131 and the pressing plate assembly 12 press the circuit board assembly 21 tightly.
  • the elastic member 1322 can also be switched between the compressed state and the extended state.
  • the expansion and contraction of the elastic member 1322 sleeved outside the support column 1321 can also be adjusted through the electromagnetic driving method as mentioned above.
  • the workbench 131 as a magnetic member and the drive coil in the chassis 11 as an example, by changing the magnetic
  • the magnetic force between the component and the driving coil drives the worktable 131 to move relative to the chassis 11, and the movement of the worktable 131 drives the elastic member 1322 to expand and contract.
  • pressure sensors 14 are provided inside the workbench 131 of each adjustable bearing seat 13a to detect the pressure value of the circuit board assembly 21 on the workbench 131 through the pressure sensor 14, so that before welding, Adjust the height of the workbench 131 of the adjustable bearing seat 13a to control the pressure on the circuit board assembly 21 within an appropriate range.
  • the required pressure range of 5-20N for welding the circuit board assembly 21 as an example, when the pressure sensor 14 detects that the pressure on the circuit board assembly 21 is between 5-20N, it means that the pressure on the circuit board assembly 21 is between Within a suitable range, the workbench 131 of the adjustable bearing base 13a can be fixed at this height position.
  • the pressure plate assembly 12 After the pressure plate assembly 12 is moved down and placed on the circuit board assembly 21, or after the height of the workbench 131 of the adjustable bearing seat 13a is raised, if the withstand pressure of the circuit board assembly 21 detected by the pressure sensor 14 is less than the welding requirement Pressure, for example, if the pressure on the circuit board assembly 21 detected by the pressure sensor 14 is less than 5N, continue to slowly move up the worktable 131 until the pressure detected by the pressure sensor 14 is within the appropriate range for welding requirements.
  • the pressure sensor 14 can be placed close to the working surface of the workbench 131 , that is, the pressure sensor 14 is set close to the surface of the workbench 131 where the circuit board assembly 21 is placed, so as to improve the accuracy of the pressure sensor 14 in detecting the pressure on the circuit board assembly 21 .
  • the pressure sensor 14 may be adhered to the inner wall surface of the worktable 131 corresponding to its working surface.
  • the energy generated by the laser emitted by the laser 15 can be used to heat the circuit board assembly 21.
  • the laser 15 is arranged on the side of the platen assembly 12 away from the chassis 11.
  • the laser light emitted by the laser 15 passes through the platen assembly 12 and is set on the workbench 131.
  • the energy of the laser heats the circuit board assembly 21 on the workbench 131, so that the PCB211
  • the solder paste 2114 on the pad 2113 is melted, and then the soldering connection between the PCB 211 and the FPC 212 is realized.
  • the laser 15 can include a laser body 151 and a laser glass 152.
  • the laser body 151 is used to emit laser light.
  • the laser glass 152 is arranged on the light-emitting side of the laser body 151.
  • the laser glass 152 is used to protect the purity of the laser body 151 and prevent impurities from entering the laser body. within 151.
  • the laser light emitted by the laser body 151 passes through the laser glass 152 and the platen assembly 12 , and irradiates the circuit board assembly 21 on the workbench 131 .
  • the laser glass 152 may be bonded to the surface of the platen assembly 12 facing away from the chassis 11 .
  • the laser light emitted by the laser 15 passes through the laser glass 152 and the pressure plate assembly 12 are irradiated on the surface of the FPC212, the energy of the laser heats the FPC212, and the FPC212 heats up and transfers the heat to the solder paste 2114 on the pad 2113 of the PCB211, so that the solder paste 2114 melts, and the melted solder paste 2114 is subjected to Squeeze and overflow upwards to the surface of the FPC212 away from the PCB211 to realize the soldering connection between the FPC212 and the PCB211.
  • the laser light emitted by the laser 15 is irradiated on the surface of the PCB211, and the energy of the laser Heat the PCB211 to heat up, the PCB211 heats up and transfers the heat to the solder paste 2114 on the solder pad 2113 on the other surface, so that the solder paste 2114 melts, and the melted solder paste 2114 is squeezed and flows downward, overflowing to the departure of the FPC212
  • the surface of PCB211 realizes the welding connection between FPC212 and PCB211.
  • the platen assembly 12 may include a base plate 121, which is arranged opposite to the chassis 11, and the base plate 121 can cover the entire area shared by all the bearing seats 13 provided on the chassis 11, that is, , all the projections of the worktable 131 of the carrier 13 on the substrate 121 are located within the coverage of the substrate 121 .
  • Each circuit board assembly 21 is pressed between the substrate 121 and the workbench 131 of each carrier 13 .
  • the substrate 121 may be a glass substrate, which has high light transmittance, for example, the transmittance of the glass substrate to laser light is greater than 99.5%, and the laser light is irradiated onto each workbench 131 through the glass substrate.
  • the substrate 121 can also be a plastic substrate.
  • the plastic substrate should have high laser transmittance, and the plastic substrate has high strength and good thermal stability, which can meet the welding pressure requirements of the circuit board assembly 21, and the energy of the laser does not affect Stability of plastic substrates.
  • the platen assembly 12 may also include at least two divider plates 122 , each divider plate 122 is disposed on the surface of the base plate 121 facing the chassis 11 , for example, each divider plate 122 is bonded to the surface of the base plate 121 .
  • Each divider plate 122 corresponds to the workbench 131 of each bearing seat 13 one by one, and a working space is formed between the divider plate 122 and the workbench 131. between the bit plate 122 and the workbench 131 .
  • the strength of the pressing plate assembly 12 can be increased, the pressure bearing capacity of the pressing plate assembly 12 can be improved, and the reliability of the welding device 1 can be improved.
  • there is a space between adjacent dividing plates 122 and the space provides a certain avoidance space between adjacent bearing seats 13 , and the avoidance space is used to avoid other structures on the circuit board assembly 21 .
  • the PCB211 or FPC212 in addition to the area that needs to be soldered, other areas are also arranged with components 2111.
  • the components 2111 on the PCB211 or FPC212 are located on the adjacent divider board 122 in the avoidance space between them.
  • the end of the FPC 212 provided with the connector may be located in the avoidance space.
  • FIG. 11 is a schematic structural diagram of a third welding device provided in Embodiment 2 of the present application.
  • each bearing seat 13 of the welding device 1 in this embodiment includes a fixed bearing base 13b, and the rest of the bearing bases 13 are adjustable bearing bases 13a .
  • the welding device 1 as an example with two bearing seats 13, one of the bearing seats 13 is a fixed bearing seat 13b, and the other bearing seat 13 is an adjustable bearing seat 13a.
  • the distance between the workbench 131 of the fixed bearing seat 13b and the chassis 11 is constant, taking the support frame 132 of the fixed bearing seat 13b as the support column 1321 as an example, the support column 1321 of the fixed bearing seat 13b can be It is a support column 1321 whose length cannot be adjusted, and the workbench 131 can be fixedly installed on the top of the support column 1321 .
  • the press plate assembly 12 of the welding device 1 should be set as a liftable press plate assembly 12. Before the circuit board assembly 21 is welded, the press plate assembly 12 and A larger space is reserved between the workbenches 131 of the fixed bearing base 13b. After the circuit board assembly 21 is placed, the pressing plate assembly 12 is moved down so that the pressing plate assembly 12 is pressed against the surface of the circuit board assembly 21 on the workbench 131 .
  • the height of the workbench 131 of the adjustable bearing base 13a can be adjusted based on the fixed bearing base 13b.
  • the initial height of the workbench 131 of the adjustable bearing seat 13a may be lower than the height of the workbench 131 of the fixed bearing seat 13b, that is, before the welding process, the height between the workbench 131 of the adjustable bearing seat 13a and the chassis 11 The distance between them is smaller than the distance between the workbench 131 and the chassis 11 on which the bearing seat 13b is fixed.
  • the circuit board assembly 21 can be placed on the workbench 131 of the fixed bearing seat 13b, and before welding, it can only be adjusted to lift
  • the height of the pressing plate assembly 12 is enough, the operation is simple, and the efficiency is high.
  • the welding device 1 of this embodiment can be modified on the basis that the original welding device 1 includes a fixed bearing seat 13b, and an adjustable bearing seat 13a is installed on the chassis 11, which is easier to implement and does not need to scrap the original welding device. 1.
  • Fig. 11 shows the situation that the support frame 132 of the fixed bearing seat 13b of the welding device 1 is a support column 1321
  • the support frame 132 of the fixed bearing seat 13b can also be other structures, for example, the fixed bearing seat 13b
  • the supporting frame 132 is a frame structure.
  • the support frame 132 of the adjustable bearing seat 13a of the welding device 1 shown in FIG. 11 is a telescopic support column 1321.
  • the structure in which the supporting column 1321 is covered with the elastic member 1322 is shown, or the supporting frame 132 of the adjustable bearing seat 13a can also be in other structural forms, which will not be repeated here.
  • a pressure sensor 14 may be provided on the platen assembly 12, for example, a pressure sensor 14 may be provided on the surface of the base plate 121 of the platen assembly 12 facing away from the chassis 11 .
  • a pressure sensor 14 is provided in the workbench 131 of each adjustable bearing seat 13a.
  • each bearing seat 13 When the pressure plate assembly 12 is pressed on the worktable 131 of each bearing seat 13, the average pressure on each workbench 131 is detected by the pressure sensor 14 arranged on the pressure plate assembly 12, and the pressure value detected by the pressure sensor 14 is used as a reference to determine The location of the platen assembly 12. Then, adjust the height of the workbench 131 of each adjustable bearing seat 13a according to the pressure value detected by the pressure sensor 14 that is arranged in the workbench 131 of each adjustable bearing seat 13a, so that the workbench 131 of each adjustable bearing seat 13a The pressure to bear reaches the appropriate range.
  • FIG. 12 is a schematic structural diagram of a fourth welding device provided in Embodiment 2 of the present application.
  • the pressure sensor 14 is not provided on the platen assembly 12 , but the pressure sensor 14 is provided in the workbench 131 on which the bearing seat 13 b is fixed.
  • the pressure value detected by the pressure sensor 14 in the fixed bearing seat 13b is used as a reference for adjusting the height of the platen assembly 12.
  • the pressure is detected by the pressure sensor 14 in the workbench 131 of each adjustable bearing seat 13a. value, adjust the height of the workbench 131 of each adjustable bearing seat 13a.
  • the pressure value detected by the pressure sensor 14 in the workbench 131 of the fixed bearing seat 13b is closer to the pressure on the workbench 131 of the fixed bearing seat 13b Therefore, the positioning accuracy of the pressing plate assembly 12 is higher, and the height of the workbench 131 of each adjustable bearing seat 13a can be adjusted more accurately by using the pressure value as a reference, and then the work of each adjustable bearing seat 13a can be improved.
  • Embodiment 1 and Embodiment 2 On the basis of Embodiment 1 and Embodiment 2, in order to improve the heating efficiency of the welding device 1 to the circuit board assembly 21 and improve the welding speed of the circuit board assembly 21, the welding device in Embodiment 1 and Embodiment 2 in this embodiment 1 The heating structure has been improved.
  • FIG. 13 is a schematic structural diagram of a fifth welding device provided in Embodiment 3 of the present application.
  • at least two lasers 15 can be arranged in the welding device 1, each laser 15 is arranged on the side of the platen assembly 12 away from the chassis 11, for example, each laser 15 is arranged on the platen assembly The surface of the base plate 121 of 12 facing away from the chassis 11 .
  • each laser 15 corresponds to each supporting seat 13 one by one, and the light emitting surface of each laser 15 corresponds to each workbench 131, for example, the laser glass 152 of each laser 15 faces each workbench 131.
  • each workbench 131 By setting a plurality of lasers 15 one-to-one corresponding to each workbench 131 of each bearing seat 13 above the platen assembly 12, the light-emitting surface of each laser 15 is aligned with each workbench 131, and the laser light emitted by each laser 15 is concentratedly irradiated to each workbench 131.
  • the workbench 131 centrally heats each circuit board assembly 21 on each workbench 131 , which can improve the heating efficiency of each circuit board assembly 21 , increase the welding speed of each circuit board assembly 21 , and improve the welding efficiency of the welding device 1 .
  • the large PCB 211 is formed first, and then the large PCB 211 is cut into a plurality of small PCBs 211 meeting requirements. Therefore, among the plurality of lasers 15 provided in the welding device 1 , some of the lasers 15 can be used for heating the circuit board assembly 21 on the workbench 131 , while the other part of the lasers 15 are used for cutting the PCB 211 .
  • FIG. 14 is a schematic structural diagram of a sixth welding device provided in Embodiment 3 of the present application.
  • the plurality of lasers 15 may include a first laser 15a and a second laser 15b.
  • the first laser 15a can be the aforementioned laser 15 arranged on the side of the platen assembly 12 away from the chassis 11, the first laser 15a is used to realize the heating function of the circuit board assembly 21 on the workbench 131, and the platen is shown in FIG. 14
  • a first laser 15 a is disposed on the component 12 , and the first laser 15 a covers all the worktables 131 of the carrier 13 , and the laser emitted by the first laser 15 a can irradiate the circuit board assembly 21 on each workbench 131 .
  • a plurality of first lasers 15 a may also be arranged on the platen assembly 12 , and each first laser 15 a corresponds to the workbench 131 of each bearing seat 13 , which will not be repeated here.
  • the second laser 15b can be arranged on the side of the platen assembly 12 facing the chassis 11, and the second laser 15b is located in the gap between adjacent bearing seats 13, for example, the second laser 15b is arranged on the side of the substrate 121 facing the chassis 11 surface, and the second laser 15b is located in the gap between adjacent divider plates 122 .
  • the laser light emitted by the second laser 15 b is irradiated to the area on the PCB 211 protruding from the working table 131 , so as to cut the PCB 211 from the corresponding position.
  • the area to be cut on the PCB 211 is correspondingly placed in the gap between adjacent bearing seats 13, and the laser emitted by the second laser 15b is directly irradiated to the area to be cut of the PCB 211, Laser cut the PCB211.
  • the PCB211 to be cut can be the aforementioned integrated PCB211 covering multiple workbenches 131, the FPC212 on each workbench 131 is welded to different areas of the PCB211, and the second laser 15b is used to cut the PCB211 corresponding to the corresponding position.
  • the area between adjacent workbenches 131 ; or, the PCB211 to be cut is each PCB211 set corresponding to each workbench 131 , and the second laser 15b is used to cut the area on the PCB211 protruding out of the workbench 131 .
  • the surface of the substrate 121 facing the chassis 11 can be provided with a plurality of second lasers 15b at intervals, and each second laser 15b is arranged in the gap between adjacent dividing plates 122, and each adjacent The second lasers 15b are arranged between the dividing plates 122 of the bearing seats 13 , and the second lasers 15b may also be arranged between the dividing plates 122 of some adjacent bearing seats 13 .
  • this embodiment provides a welding device 1.
  • a heating structure is also provided corresponding to each bearing seat 13, so as to centrally heat each bearing seat 13 through the heating structure on each bearing seat 13, and improve the heating efficiency of the circuit board assembly 21 on each bearing seat 13 .
  • Fig. 15 is a schematic structural diagram of a seventh welding device provided in Embodiment 4 of the present application. 15, on the basis of heating the circuit board assembly 21 on the workbench 131 of each bearing seat 13 through the laser 15 on the pressing plate assembly 12 through the pressing plate assembly 12, a laser can also be provided corresponding to each bearing base 13 15, to accelerate the heating speed of the circuit board assembly 21 on the workbench 131 of each bearing seat 13, and increase the welding speed of the circuit board assembly 21.
  • a third laser 15c can be respectively arranged on each bearing seat 13, and the third laser 15c is located between the workbench 131 and the chassis 11, for example, the third laser 15c can be arranged on the side surface of the workbench 131 facing the chassis 11
  • the workbench 131 can be a workbench 131 with good light transmission, and the material constituting the workbench 131 can be, for example, glass or plastic with good light transmission and good thermal stability.
  • the laser light emitted by the third laser 15 c passes through the worktable 131 and irradiates the circuit board assembly 21 on the worktable 131 to heat the circuit board assembly 21 .
  • the laser 15 located above the platen assembly 12 heats one side surface of the circuit board assembly 21, and the third laser 15c located below the workbench 131 heats the other side surface of the circuit board assembly 21. Heating both sides of the circuit board assembly 21 at the same time improves the heating efficiency of the circuit board assembly 21 by the welding device 1 , increases the welding speed of the circuit board assembly 21 , and improves the welding efficiency of the welding device 1 .
  • Fig. 16 is a schematic structural diagram of an eighth welding device provided in Embodiment 4 of the present application.
  • the heater 1311 is, for example, an electric heater.
  • the heat generated by the heater 1311 is conducted to the working surface of the workbench 131 to heat the circuit board assembly 21 on the workbench 131 .
  • the heater 1311 in each workbench 131 cooperates with the laser 15 on the platen assembly 12 to heat both sides of the circuit board assembly 21 at the same time, improving the heating efficiency and welding speed of the circuit board assembly 21 and improving the welding efficiency of the welding device 1 .
  • the welding device 1 provided in this embodiment may also be provided with the second laser 15b used for cutting the PCB 211 in the third embodiment above, which will not be repeated here.
  • this embodiment provides a soldering method for circuit board assembly 21 (hereinafter referred to as the soldering method), which is applied to the soldering device 1 in Embodiment 1 or Embodiment 2.
  • FIG. 17 is a schematic flowchart of a circuit board component welding method provided in Embodiment 5 of the present application. Shown in Fig. 17 with reference to, welding method comprises the steps:
  • each first circuit board 21a is placed on the workbench 131 of each bearing seat 13, so that the surface to be welded of the first circuit board 21a faces upward, that is, the surface to be welded of the first circuit board 21a faces The platen assembly 12 above the workbench 131.
  • first circuit board 21 a as the PCB 211 as an example, first place each PCB 211 on each workbench 131 respectively, and the side surface of the PCB 211 provided with the pad 2113 faces upward.
  • solder paste 2114 can be printed on the solder pad 2113 on the PCB 211 in advance, and the workbench 131 is usually provided with a positioning area. Apply another layer of flux.
  • the first circuit board 21a may be FPC212.
  • each FPC212 is placed on each workbench 131, and the side surface of the FPC212 provided with the welding pins 2122 faces upward.
  • the second circuit board 21b is stacked on the first circuit board 21a, and the surface to be soldered of the second circuit board 21b faces the first circuit board 21a.
  • the first circuit board 21a as PCB211 and the second circuit board 21b as FPC212 after placing the PCB211 on the workbench 131, place the FPC212 on the PCB211, wherein the area where the welding pins 2122 are concentrated on the FPC212 corresponds to It is located in the soldering area 211a on the PCB 211 .
  • the first circuit board 21a as FPC212 and the second circuit board 21b as PCB211 after placing the FPC212 on the workbench 131, stack the PCB211 on the FPC212, so that the soldering area 211a of the PCB211 and the FPC212 are provided with soldering pins 2122 corresponds to the area.
  • the first circuit board 21a can be FPC212
  • the second circuit board 21b can be PCB211
  • each FPC212 can be placed on each workbench 131 first.
  • the integral PCB211 is stacked on each FPC212, so as not to cause damage to the integral PCB211 when adjusting the workbench 131 of each adjustable bearing seat 13a.
  • the pressing plate assembly 12 After placing the circuit board assembly 21 , adjust the distance between the workbench 131 and the pressing plate assembly 12 , so that the pressing plate assembly 12 is pressed on the second circuit board 21 b on the workbench 131 .
  • the pressing plate assembly 12 is pressed on each FPC 212 or on each PCB 211 , or the pressing plate assembly 12 is pressed on the integrated PCB 211 .
  • the pressure plate assembly 12 can only play a preloading role, and the height of the pressure plate assembly 12 can be positioned, and the pressure on the circuit board assembly 21 on each workbench 131 can be less than the pressure range required for welding, or only The circuit board assembly 21 on one or part of the workbenches 131 bears a pressure within the pressure range required for welding, and the circuit board assembly 21 on the rest of the workbenches 131 bears a pressure lower than the pressure range required for welding.
  • the pressure on the circuit board assembly 21 on each workbench 131 can be less than 8N, or only one or part of the circuit board assembly 21 on the workbench 131 can withstand The pressure is in the range of 8-20N, and the pressure of the circuit board assembly 21 on the rest of the workbench 131 is less than 8N.
  • the pressing plate assembly 12 After positioning the pressing plate assembly 12, adjust the height of the worktable 131 of each adjustable bearing seat 13a for the pressure on the workbench 131 of different adjustable bearing seats 13a, so that the bearing pressure on the workbench 131 of each bearing seat 13 It is within a preset pressure range, which is a pressure range required by welding, for example, the preset pressure range is 8-20N.
  • each bearing base 13 as an adjustable bearing base 13a as an example
  • the pressure plate assembly 12 is pressed on the second circuit board 21b on each workbench 131 to position the height of the pressure plate assembly 12
  • the bearing pressure on one of the workbenches 131 or some of the workbenches 131 is within the preset pressure range, while the bearing pressure on the rest of the workbenches 131 is less than the minimum pressure value within the preset pressure range, or, all the workbenches
  • the bearing pressures are all less than the minimum pressure value within the preset pressure range.
  • the height of the workbench 131 whose bearing pressure is less than the minimum pressure value in the preset pressure range is increased, that is, the distance between these workbenches 131 and the chassis 11 is increased, and the distance between these workbenches 131 and the platen assembly 12 is reduced.
  • the height of these workbenches 131 is fixed after the bearing pressure on these workbenches 131 reaches a preset pressure range.
  • the bearing pressure on the workbench 131 of each adjustable bearing seat 13a is controlled to the maximum pressure value not exceeding the preset pressure range , so as not to cause damage to the circuit board assembly 21 due to excessive pressure.
  • each bearing base 13 is an adjustable bearing base 13a
  • the height of the workbench 131 of each bearing base 13 can be adjusted, therefore, the pressing plate assembly 12 can be set as a pressing plate assembly 12 with a fixed height, or the pressing plate assembly 12 can be The height of the platen assembly 12 is capable of raising and lowering, which is not limited in this embodiment.
  • the bearing pressure on the worktable 131 of each adjustable bearing seat 13a can be detected in real time through the pressure sensor 14 in the worktable 131 of each adjustable bearing seat 13a.
  • each bearing seat 13 includes a fixed bearing base 13b
  • the height of the workbench 131 of the fixed bearing base 13b is not adjustable, and the remaining bearing bases 13 are adjustable bearing bases 13a as an example
  • the pressing plate assembly 12 can be A height-liftable platen assembly 12.
  • the height of the workbench 131 of each adjustable bearing seat 13a can be lower than the height of the fixed workbench 131, that is, the distance between the workbench 131 of each adjustable bearing seat 13a and the chassis 11 is smaller than that of the fixed load bearing.
  • the bearing pressure on the workbench 131 of the fixed bearing seat 13b should be within the preset pressure range.
  • the bearing pressure on the workbench 131 of the adjustable bearing seat 13a is less than the minimum value in the preset pressure range, so as to avoid the initial pressure on the workbench 131 of the adjustable bearing seat 13a being too large, and the workbench of the adjustable bearing seat 13a
  • the circuit board assembly 21 on 131 causes damage.
  • the bearing pressure on the worktable 131 of each adjustable bearing seat 13a can be detected in real time through the pressure sensor 14 in the worktable 131 of each adjustable bearing seat 13a.
  • the pressure between the platen assembly 12 and the workbench 131 of the fixed bearing seat 13b can be detected through the pressure sensor 14 on the platen assembly 12, or the pressure between the workbench 131 of the fixed bearing seat 13b can be detected.
  • the pressure sensor 14 detects in real time the bearing pressure on the worktable 131 that fixes the bearing seat 13b.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements.

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Abstract

一种电路板组件(21)焊接装置(1)及电路板组件(21)焊接方法,焊接装置(1)通过在底盘(11)上设置至少两个承载座(13),承载座(13)位于底盘(11)和压板组件(12)之间的空间内,承载座(13)包括工作台(131),工作台(131)位于承载座(13)面向压板组件(12)的一侧,通过将电路板组件(21)放置在工作台(131)上,压板组件(12)压设在工作台(131)上的电路板组件(21)上,以为电路板组件(21)提供压力,实现电路板组件(21)的焊接连接;其中,至少两个承载座(13)中至少包括一个可调承载座(13a),可调承载座(13a)的工作台(131)与底盘(11)之间的间距可调节。

Description

电路板组件焊接装置及电路板组件焊接方法
本申请要求于2021年10月13日提交中国专利局、申请号为202111189553.2、申请名称为“电路板组件焊接装置及电路板组件焊接方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及焊接设备技术领域,特别涉及一种电路板组件焊接装置及电路板组件焊接方法。
背景技术
现代生活中,手机、笔记本电脑、智能手表等移动终端,在人们的日常生活、工作联络等场景中的作用越来越重要,已日渐成为现代人生活的必需品。
移动终端通常包括屏幕组件、外壳、电池和主板等部件,电池和主板设置在屏幕组件和外壳围成的空间内,主板通常为印制电路板(Printed Circuit Board,简称PCB),主板上设置有各种元器件,移动终端的一些部件需要与主板上的某些元器件电连接。其中,移动终端的其他部件可以通过柔性电路板(Flexible Printed Circuit,简称FPC)与主板上的元器件电连接。实际操作时,可以采用激光焊接技术,通过焊接设备先将FPC焊接在主板上,之后再将FPC与移动终端的其他部件连接。
然而,现有的焊接设备,每次焊接只能实现单个FPC与单个PCB焊接连接,焊接效率低。
发明内容
本申请提供一种电路板组件焊接装置及电路板组件焊接方法,电路板组件焊接装置单次可实现多个FPC分别与多个PCB焊接连接,焊接效率高。
一方面,本申请提供一种电路板组件焊接装置,包括底盘、压板组件以及至少两个承载座,压板组件相对设置于底盘的上方,承载座安装在底盘上,且承载座位于压板组件和底盘之间;承载座包括工作台,工作台位于承载座面向压板组件的一侧,工作台用于放置电路板组件,压板组件用于压设在位于工作台上的电路板组件上;
其中,至少两个承载座中至少包括一个可调承载座,可调承载座的工作台与底盘之间的间距可调节。
本申请提供的电路板组件焊接装置,通过在底盘上设置至少两个承载座,承载座位于底盘和压板组件之间的空间内,承载座包括工作台,工作台位于承载座面向压板组件的一侧,通过将电路板组件放置在工作台上,压板组件压设在工作台上的电路板组件上,以为电路板组件提供压力,实现电路板组件的焊接连接。其中,通过设置至少一个可调承载座,可调承载座的工作台与底盘之间的间距可调节,进而,通过调节可调承载座的工作台与压 板组件之间的间距,可实现不同厚度的电路板组件之间的焊接连接。通过在各承载座上分别放置电路板组件,焊接装置满足单次至少焊接连接两组电路板组件,焊接效率高。
在一种可能的实施方式中,承载座还包括支撑架,支撑架连接在工作台和底盘之间,可调承载座的支撑架可调节工作台相对于底盘的高度。
通过在底盘上安装支撑架,通过支撑架将工作台支撑在底盘上方,以使工作台与压板组件之间形成焊接工作空间。并且,可调承载座的支撑架可调节工作台的高度,以根据不同电路板组件厚度,调节工作台与压板组件之间的间距,以使施加在电路板组件上的压力满足焊接压力要求。
在一种可能的实施方式中,可调承载座的支撑架包括至少一根支撑柱,支撑柱支撑在底盘上。
通过支撑柱支撑可调承载座的工作台,通过支撑柱调节工作台相对于底盘的高度,以调节工作台的高度,调节工作台与压板组件之间的间距。
在一种可能的实施方式中,可调承载座的工作台固定在支撑柱的顶端,且可调承载座的支撑柱的高度可调节。
通过将可调承载座的工作台固定在支撑柱的背离底盘的顶端,将支撑柱设置为高度可调节的支撑柱,通过调节支撑柱的高度,支撑柱带动工作台移动,调节工作台的高度。
在一种可能的实施方式中,可调承载座的工作台活动连接于支撑柱并可沿支撑柱的轴向移动,且可调承载座的工作台可固定在支撑柱的不同部位。
通过将支撑柱设置为固定结构,而将工作台可移动的连接在支撑柱上,支撑柱对工作台的移动起到导向作用,使工作台沿其轴向移动,且工作台可固定在支撑柱的不同部位,以调节工作台相对于底盘的高度。
在一种可能的实施方式中,可调承载座的支撑柱的外部套设有可伸缩的弹性件,支撑柱穿设于工作台内,弹性件的两端分别与工作台和底盘抵接。
通过将支撑柱穿设在工作台内,在支撑柱的外部套设可伸缩的弹性件,弹性件抵设在工作台和底盘之间,通过调节弹性件的伸缩量,弹性件带动工作台移动,调节工作台的高度。
在一种可能的实施方式中,可调承载座的工作台的内部设置有压力传感器。
通过在可调承载座的工作台内设置压力传感器,通过压力传感器检测电路板组件所承受的压力,以调节工作台的高度,使电路板组件上承受的压力处于合适范围内。
在一种可能的实施方式中,至少两个承载座中包括一个固定承载座,固定承载座的工作台与底盘之间的间距固定不变。
通过设置固定承载座,固定承载座的工作台的高度不可调节,同时焊接多组电路板组件时,可以以固定承载座的工作台为基准,调节各可调承载座的工作台的高度。另外,单次仅焊接一组电路板组件时,电路板组件可以放置在固定承载座上,以简化调节焊接压力的工序,提高焊接效率。并且,焊接装置可以在原有具有一个固定承载座的焊接装置的基础上进行改造。
在一种可能的实施方式中,压板组件上设置有压力传感器,或者,固定承载座的工作台内设置有压力传感器。
通过在压板组件上或固定承载座的工作台内设置压力传感器,检测固定承载座的工作 台与压板组件之间的压力值,以此基准调节压板组件的高度,定位压板组件之后,根据各可调承载座的工作台内的压力传感器的检测值,调节各可调承载座的工作台的高度。
在一种可能的实施方式中,压板组件包括基板,基板与底盘相对设置,所有承载座的工作台在基板上的投影,均位于基板的覆盖范围内。
通过设置能够覆盖所有承载座的基板,基板用于压设各承载座的工作台上的电路板组件,且基板用于透过激光器发射的激光,以使激光照射至工作台上的电路板组件的表面。
在一种可能的实施方式中,压板组件还包括至少两个分位板,各分位板均设置在基板面向底盘的一侧表面,各分位板与各承载座的各工作台一一对应,分位板压设在位于工作台上的电路板组件上;
其中,相邻分位板之间具有间隔。
通过在基板面向底盘的一侧表面设置分位板,各分位板与各承载座的工作台一一对应,电路板组件被压设在分位板与工作台之间。通过设置分位板可以增大压板组件的强度,提高压板组件的承压能力,提升焊接装置的可靠性。并且,通过使相邻分位板之间具有间隔,相邻分位板之间的空间形成避让空间,该避让空间可以避让电路板组件上位于焊接区域以外的一些结构件。
在一种可能的实施方式中,焊接装置还包括至少一个激光器,至少一个激光器设置在压板组件背离底盘的一侧,至少一个激光器发射的激光透过压板组件照射至工作台上的电路板组件。
通过在压板组件背离底盘的一侧设置激光器,激光器发射的激光透过压板组件照射至工作台上的电路板组件,通过激光的能量加热电路板组件,使电路板组件升温,PCB上的焊膏融化,融化的焊膏受挤压而溢出至FPC的背离PCB的一侧表面,实现FPC和PCB的焊接连接。
在一种可能的实施方式中,焊接装置包括至少两个激光器,各激光器均设置在压板组件背离底盘的一侧,且各激光器的出光面一一对应各工作台。
通过在压板组件上设置多个激光器,各激光器与各承载座的各工作台一一对应,各激光器发射的激光集中照射至各电路板组件上,可以提高对电路板组件的加热效率,提升电路板组件的焊接速度。
在一种可能的实施方式中,焊接装置包括至少两个激光器,至少两个激光器中包括至少一个第一激光器和至少一个第二激光器;
第一激光器设置在压板组件背离底盘的一侧;第二激光器设置在压板组件面向底盘的一侧,且第二激光器位于相邻承载座之间的间隙内。
通过在压板组件背离底板的一侧设置第一激光器,第一激光器发射的激光透过压板组件照射至各工作台上的电路板组件,用于对电路板组件进行加热;通过在压板组件面向底盘的一侧设置第二激光器,第二激光器位于相邻承载座之间的间隙内,第二激光器发射的激光照射至PCB上位于相邻工作台之间的间隙内的区域,用于对PCB进行切割。
在一种可能的实施方式中,焊接装置包括多个激光器,多个激光器中包括至少两个第三激光器,各第三激光器分别对应各承载座设置,且第三激光器位于工作台和底盘之间,第三激光器的出光面朝向工作台,第三激光器发射的激光透过工作台照射至电路板组件。
通过在各承载座上设置第三激光器,第三激光器位于工作台下方,第三激光器发射的 激光透过工作台照射至工作台上的电路板组件,通过压板组件上方的激光器和工作台下方的第三激光器对电路板组件的两侧表面同时加热,可提高电路板组件的加热效率,提高电路板组件的焊接速度,提升焊接装置的焊接效率。
在一种可能的实施方式中,工作台内设置有加热器。
通过在各承载座的工作台内设置加热器,加热器与压板组件上的激光器共同配合,对电路板组件的两侧同时加热,提高电路板组件的加热效率和焊接速度,提升焊接装置的焊接效率。
另一方面,本申请提供一种电路板组件焊接方法,应用于上述电路板组件焊接装置,包括:
将各第一电路板一一对应地放置在各承载座的工作台上;其中,第一电路板的待焊面面向压板组件;
将各第二电路板一一对应地层叠在各工作台上的各第一电路板上;其中,第二电路板的待焊面面向第一电路板;
将压板组件压设在各工作台上的第二电路板上;
调节各可调承载座的工作台与底盘之间的间距,使各工作台上的承载压力处于预设压力范围内;
将第二电路板和第一电路板焊接连接。
本申请提供的电路板组件焊接方法,通过在各承载座上分别放置第一电路板,并将第二电路板贴合在各工作台的第一电路板上后,将压板组件压设在各工作台上的第二电路板上,以对各电路板组件进行预压,定位压板组件,之后,根据各可调承载座的工作台上的压力值,调节各可调承载座的工作台的高度,调节各可调承载座的工作台与压板组件之间的间距,直至各可调承载座的工作台上的承载压力处于预设压力范围内,满足电路板组件的焊接压力要求后,固定各可调承载座的工作台的高度,进行第一电路板和第二电路板的焊接。
在一种可能的实施方式中,各承载座均为可调承载座,将压板组件压设在各工作台上的第二电路板上,调节各可调承载座的工作台与底盘之间的间距,使各工作台上的承载压力处于预设压力范围内,具体包括:
压板组件压设各第二电路板,使其中至少一个工作台上的承载压力处于预设压力范围内,其余工作台上的承载压力小于预设压力范围内的最小压力值,或者,使所有工作台上的承载压力均小于预设压力范围内的最小压力值;
增大承载压力小于预设压力范围内的最小压力值的工作台与底盘之间的间距,使所有工作台上的承载压力均处于预设压力范围内。
在一种可能的实施方式中,各承载座中包括一个固定承载座,将压板组件压设在各工作台上的第二电路板上,调节各可调承载座的工作台与底盘之间的间距,使各工作台上的承载压力处于预设压力范围内,具体包括:
压板组件压设各第二电路板,使固定承载座的工作台上的承载压力处于预设压力范围内,各可调承载座的工作台上的承载压力小于预设压力范围内的最小压力值;
增大各可调承载座的工作台与底盘之间的间距,使各可调承载座的工作台上的承载压力处于预设压力范围内。
在一种可能的实施方式中,第一电路板和第二电路板中的一者为印制电路板,另一者为柔性电路板。
附图说明
图1为本申请实施例提供的电子设备的分解结构示意图;
图2为本申请实施例提供的PCB的结构示意图;
图3为本申请实施例提供的电路板组件的结构示意图;
图4为本申请实施例提供的FPC的局部剖视结构图;
图5为本申请实施例提供的FPC和PCB焊接连接的局部剖视结构图;
图6为相关技术中的电路板组件焊接装置;
图7为相关技术中的电路板组件的焊接状态示意图;
图8为本申请实施例一提供的一种电路板组件焊接装置的结构示意图;
图9为本申请实施例一提供的一种两组电路板组件焊接对位示意图;
图10为本申请实施例一提供的另一种焊接装置的结构示意图;
图11为本申请实施例二提供的第三种焊接装置的结构示意图;
图12为本申请实施例二提供的第四种焊接装置的结构示意图;
图13为本申请实施例三提供的第五种焊接装置的结构示意图;
图14为本申请实施例三提供的第六种焊接装置的结构示意图;
图15为本申请实施例四提供的第七种焊接装置的结构示意图;
图16为本申请实施例四提供的第八种焊接装置的结构示意图;
图17为本申请实施例五提供的电路板组件焊接方法的流程示意图。
附图标记说明:
1-焊接装置;2-电子设备;3-焊接装置;
11-底盘;12-压板组件;13-承载座;13a-可调承载座;13b-固定承载座;14-压力传感器;15-激光器;15a-第一激光器;15b-第二激光器;15c-第三激光器;
121-基板;122-分位板;131-工作台;132-支撑架;151-激光器本体;152-激光器玻璃;
1311-加热器;1321-支撑柱;1322-弹性件;
21-电路板组件;21a-第一电路板;21b-第二电路板;22-屏幕组件;23-中框;24-后壳;
211-PCB;212-FPC;
211a-焊接区域;2111-元器件;2112-金属导线;2113-焊盘;2114-焊膏;2121-基板;2121a-贯通孔;2122-焊接引脚;2123-金属走线;
31-底盘;32-压板;33-承载座;34-激光器;
331-工作台;332-支撑柱。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。
手持式无线通信设备、台式计算机、笔记本电脑(laptop)、平板电脑(Table)、超级移动个人计算机(ultra-mobile personal computer,UMPC)、手持计算机、对讲机、上网本、 POS机、个人数字助理(personal digital assistant,PDA)等电子设备,通常都具有多个部件,其中,有些部件之间需要电连接,以实现相应部件的功能。
本申请实施例中,以电子设备为手持式无线通信设备为例进行说明。图1为本申请实施例提供的电子设备的分解结构示意图。参照图1所示,具体以电子设备2为手机为例,电子设备2通常包括屏幕组件22、中框23、电路板组件21和后壳24。屏幕组件22具有用于显示图像信息的显示区域(图中未示出),沿电子设备2的厚度方向,中框23设置于屏幕组件22和后壳24之间。屏幕组件22、中框23及后壳24之间共同围成容纳空间,电路板组件21设置于该容纳空间内。
电路板组件21包括印制电路板(Printed Circuit Board,PCB)和柔性电路板(Flexible Printed Circuit,FPC)。
图2为本申请实施例提供的PCB的结构示意图。参照图2所示,PCB211可以为单面板或双面板,单面板是指PCB211的一侧板面设置有元器件2111,双面板是指PCB211的两侧板面均设置有元器件2111。PCB211可以是射频(Radio Frequency,RF)板或应用处理器(Application Processor,AP)板。射频板可以但不限于用于承载射频芯片(radio frequency integrated circuit,RFIC)、射频功率放大器(radio frequency power amplifier,RFPA)和无线保真(wireless fidelity,WIFI)芯片等。应用处理器板可以但不限于用于承载片上系统(system on chip,SOC)元件、双倍数据率(double data rate,DDR)存储器、主电源管理芯片(power management unit,PMU)和辅电源管理芯片等。
PCB211例如为电子设备2内的主板,PCB211上设置的元器件2111可以包括但不限于为处理器、天线模块、蓝牙模块、WiFi模块、全球定位系统(Global Positioning System,GPS)模块、电源及充电模块、图形处理模块、屏幕显示及操作模块等。
FPC212用于将电子设备2的一些功能部件电连接至PCB211上相应的元器件2111。例如,屏幕组件22通过FPC212与PCB211上设置的屏幕显示及操作模块电连接,摄像模组(图中未示出)通过FPC212与PCB211上设置的图形处理模块电连接。
在实际应用中,FPC212和PCB211之间可以通过板对板(board to board,BTB)连接器连接,然而,由于BTB连接器自身的体积较大,占用空间较多,不利于电子设备2内的元器件2111的布局,并且,不利于减薄电子设备2的整体厚度,无法满足电子设备2的轻薄化发展趋势。
图3为本申请实施例提供的电路板组件的结构示意图。参照图3所示,为了避免采用BTB连接器连接FPC212和PCB211,目前,通常采用软板-硬板板间互连(FPC212on board,FOB)技术,将FPC212和PCB211焊接连接,FPC212贴合在PCB211上,两者之间的焊缝厚度较薄,可以减薄电路板组件21的整体厚度,减少电路板组件21的占用空间,以合理化电子设备2内的元器件2111的布局,并减薄电子设备2的整体厚度。
结合图2所示,PCB211上设置有焊接区域211a,FPC212焊接在PCB211上的焊接区域211a内。PCB211的焊接区域211a内设置有多个焊盘2113,PCB211上还布置有多条金属导线2112,各焊盘2113和各元器件2111之间通过金属导线2112电连接。示例性的,构成焊盘2113和金属导线2112的材料可以但不限于为铜或铜合金。
图4为本申请实施例提供的FPC的局部剖视结构图。参照图4所示,FPC212包括基板2121,基板2121为柔性介电层,柔性介电层具有良好的柔韧性,使得FPC212受外力 作用时可以发生弯曲。基板2121上布置有多个焊接引脚2122及多条金属走线2123,各条金属走线2123分别与各焊接引脚2122连接,FPC212上的各焊接引脚2122用于和PCB211上的焊盘2113焊接连接,以实现FPC212与PCB211的相互导通。为便于FPC212与PCB211的连接,FPC212上的各焊接引脚2122通常集中设置在FPC212上靠近端部的区域。
示例性的,构成FPC212的基板2121的柔性介电层的材料包括但不限于为聚酰亚胺(Polyimide,PI)、热塑性聚酰亚胺(Thermoplastic polyimide,TPI)或聚酯(Polyethylene terephthalate,PET)。构成FPC212上的焊接引脚2122和金属走线2123的材料可以但不限于为铜或铜合金。
具体的,FPC212的基板2121上设置有贯通孔2121a,该贯通孔2121a贯穿基板2121的厚度方向上的两侧表面,通过在该贯通孔2121a的内壁贴附铜或铜合金等材料,形成FPC212的焊接引脚2122,并且,焊接引脚2122由贯通孔2121a内延伸至覆盖贯通孔2121a外围的基板2121的两侧表面。
图5为本申请实施例提供的FPC和PCB焊接连接的局部剖视结构图。参照图5所示,在实际应用中,焊接FPC212和PCB211之前,可以先在PCB211的焊盘2113上预先印刷焊膏2114,示例性的,焊膏2114中可以包含金属锡和助焊剂,将FPC212贴合在PCB211设有焊盘2113的一侧表面上,使FPC212上的焊接引脚2122对准PCB211上的焊盘2113并与焊盘2113上的焊膏2114接触。通过对FPC212或PCB211中的一者上背离另一者的表面施加压应力,并加热PCB211的焊盘2113上的焊膏2114,使焊膏2114融化,融化后的焊膏2114在FPC212的挤压作用下,沿着FPC212上的贯通孔2121a流动,并从FPC212的另一侧溢出,焊膏2114溢出并固化后,实现FPC212与PCB211的固定连接。其中,FPC212通过其贯通孔2121a内的焊接引脚2122及焊膏2114实现与PCB211的电连接。
另外,由于焊膏2114内含有的助焊剂易挥发,因而,在焊接PCB211和FPC212之前,还可以在焊膏2114上再涂覆一层助焊剂,以清除焊膏2114表面的氧化物,提高PCB211和FPC212之间的焊接性能。
PCB211和FPC212在焊接装置上完成焊接连接。图6为相关技术中的电路板组件焊接装置。参照图6所示,电路板组件焊接装置(以下简称焊接装置3)包括底盘31、位于底盘31上方的压板32、压板32上方安装的激光器34及安装在底盘31上的承载座33,承载座33包括支撑柱332和工作台331,支撑柱332的底端支撑在底盘31上,工作台331位于支撑柱332的顶端,工作台331面向压板32。
焊接时,先将PCB211放置在工作台331上,使PCB211的待焊面向上面向压板32,即PCB211上设置有焊接区域211a的一侧表面向上面向压板32,放置好PCB211后,可以在PCB211的焊接区域211a内的各焊盘2113上的焊膏2114表面涂覆一层助焊剂,然后,将FPC212层叠在PCB211上。
图7为相关技术中的电路板组件的焊接状态示意图。结合图7所示,放置FPC212时,将FPC212端部设置有焊接引脚2122的区域对应PCB211的焊接区域211a,FPC212上的各焊接引脚2122对准PCB211上的各焊盘2113。放置好FPC212后,压板32沿Z方向下移压设在工作台331上放置的FPC212上,通过激光器34发射的激光加热FPC212,使PCB211的焊盘2113上的焊膏2114融化并溢出至FPC212背对PCB211的一侧表面,将FPC212和PCB211焊接固定。
由于FPC212在加工制造过程中,不同FPC212之间存在厚度差异,若采用图6所示的焊接装置3同时将两个FPC212分别焊接在两个PCB211上,两组电路板组件21均放置在工作台331上,压板32同时压设在两组电路板组件21的FPC212上,由于两个FPC212的厚度存在差异,导致两个FPC212受到的压力不同,两个FPC212的焊接状态不一致,会导致至少其中一组电路板组件21无法正常使用甚至被损坏。
例如,其中一组电路板组件21的PCB211上的焊膏2114没有贯穿FPC212的两侧,导致该组电路板组件21焊接不牢固,该组电路板组件21无法满足使用需求。或者,两组电路板组件21的PCB211上的焊膏2114均贯穿FPC212的两侧,但是,其中一组电路板组件21由于受压过大,而导致FPC212上的金属走线2123或PCB211上的金属导线2112被压断,甚至PCB211的板体或FPC212的基板2121被压裂,致使电路板组件21被损坏。
因此,采用如图6所示的焊接装置3焊接PCB211和FPC212时,通常,单次焊接可实现一个PCB211与一个FPC212的焊接连接,焊接效率较低。
针对于此,本申请实施例提供一种电路板组件焊接装置,本申请实施例提供的电路板组件焊接装置,通过设置至少两个承载座,并且,承载座中包括至少一个可调承载座,可调承载座的高度可调节,能够满足不同的电路板组件的焊接需求。该焊接装置单次焊接至少可实现两组电路板组件的焊接连接,可提升电路板组件的焊接效率。
以下对本申请实施例提供的电路板组件焊接装置进行详细介绍。
实施例一
图8为本申请实施例一提供的一种电路板组件焊接装置的结构示意图。参照图8所示,本实施例提供的电路板组件焊接装置(以下简称焊接装置1),包括底盘11、压板组件12和承载座13,压板组件12相对设置在底盘11的上方,在实际应用中,压板组件12和底盘11在竖直空间内相对设置,例如,底盘11可以位于地面上,压板组件12在竖直方向上位于底盘11的上方。各承载座13均安装在底盘11上,且承载座13位于压板组件12和底盘11之间的空间内。
承载座13包括支撑架132和工作台131,支撑架132支撑在底盘11上,工作台131安装在支撑架132上,且工作台131位于支撑架132面向压板组件12的一侧。以支撑架132与底盘11连接的一端为支撑架132的底端,与底端相对的另一端为支撑架132的顶端为例,工作台131位于支撑架132的顶端,压板组件12和承载座13的工作台131之间形成工作空间,进行焊接时,电路板组件21位于该工作空间内。
具体的,焊接时,电路板组件21放置在承载座13的工作台131上,底盘11组件压设在工作台131的电路板组件21上,通过焊接装置1对放置在工作台131上的电路板组件21进行加热,融化电路板组件21上的焊膏2114,并且,通过压板组件12对电路板组件21的压力作用,将融化的焊膏2114挤压流动,焊膏2114固化后,将电路板组件21焊接牢固。
参照图8所示,电路板组件21包括第一电路板21a和第二电路板21b。其中,第一电路板21a和第二电路板21b中的一者为PCB211,另一者为FPC212。在某些应用场景中,例如,需要焊接连接两个PCB211时,第一电路板21a和第二电路板21b可以均为PCB211,而在需要焊接连接两个FPC212时,第一电路板21a和第二电路板21b可以均为FPC212, 本实施例对此不作限制。以下均以第一电路板21a和第二电路板21b中,一者为PCB211,另一者为FPC212为例,进行说明。
焊接时,首先将第一电路板21a放置在工作台131上,工作台131上通常设置有定位区域(图中未示出),第一电路板21a放置在工作台131上的定位区域内,示例性的,焊接装置1上可以设置有识别及对位模组(图中未示出),识别及对位模组用来判定第一电路板21a是否定位准确,以保证电路板组件21的焊接性能。
放置好第一电路板21a后,将第二电路板21b层叠在第一电路板21a上,确保第二电路板21b与第一电路板21a对位准确,然后,压板组件12下压第二电路板21b,对第二电路板21b和第一电路板21a产生压力,同时,焊接装置1对第一电路板21a和第二电路板21b进行加热,PCB211的焊盘2113上的焊膏2114融化,并且,融化的焊膏2114被挤压而沿着FPC212上的贯通孔2121a流动,并从FPC212背离PCB211的一侧溢出,焊膏2114固化后,实现FPC212与PCB211的焊接连接。
为了实现焊接装置1单次能够焊接至少两组电路板组件21,参照图8所示,本实施例中,焊接装置1的底盘11上安装有至少两个承载座13,每个承载座13的工作台131上均可以放置一组电路板组件21,如此,可以同时实现至少两组电路板组件21的焊接连接。
图9为本申请实施例一提供的一种两组电路板组件焊接对位示意图。参照图9所示,以并列设置的两个承载座13为例,并且,以首先放置在承载座13的工作台131上的第一电路板21a为PCB211、层叠在第一电路板21a上的第二电路板21b为FPC212为例,两个承载座13上的PCB211并排放置,可以将两个FPC212分别从两个PCB211相互远离的另一侧放置在两个PCB211上,即,两个FPC212分别从两个承载座13相互远离的一侧放置在各组的工作台131上。如此,以避免两个FPC212之间产生干涉,例如,两个FPC212上集中设置有焊接引脚2122的一端相互靠近,两个FPC212的另一端相互远离。进行FPC212与PCB211之间的对位时,FPC212上的各焊接引脚2122对正PCB211上的各焊盘2113。
除了图9所示的两个FPC212分别与两个PCB211连接之外,在实际中,还存在将至少两个FPC212连接在同一PCB211上的不同焊接区域211a内的情况,对此,本实施例中,压板组件12与各承载座13之间形成的整体工作空间内,可以放置一个PCB211,而在不同可调承载座13a的工作台131上分别放置不同的FPC212,以实现将不同FPC212焊接在同一PCB211上。
需要说明的是,由于需要调节各可调承载座13a的工作台131的高度,因而,可以将各FPC212首先放置在各工作台131上,而将PCB211层叠在各FPC212上,将PCB211定位在压板组件12一侧,对于厚度不同的FPC212,通过移动工作台131而移动FPC212,调整FPC212与PCB211之间的贴合压力,以免移动各工作台131时对PCB211造成损伤。
另外,针对不同FPC212焊接在同一PCB211上的情况,各可调承载座13a可以可移动的安装在底盘11上,以便于根据PCB211上的各焊接区域211a之间的间距,调节各可调承载座13a之间的间距,使各可调承载座13a的工作台131一一对应PCB211上的各焊接区域211a,以使各工作台131上的各FPC212均对应焊接在PCB211上的各焊接区域211a内。
继续参照图8所示,作为一种实施方式,安装在底盘11上的所有承载座13均为可调 承载座13a,可调承载座13a的支撑架132可调节工作台131相对于底盘11的高度。如前所述,受加工制造工艺的限制,FPC212的厚度无法完全保持一致,不同FPC212之间通常存在厚度差,因此,通过设置工作台131可调节的可调承载座13a,可以根据不同电路板组件21焊接时所需的压力,调节工作台131的高度,控制压板组件12和工作台131之间的间距,保证电路板组件21承受的压力处于合适范围内。
需要说明的是,电路板组件21承受的压力,应能将PCB211上融化后的焊膏2114挤压至溢出FPC212背离PCB211的一侧,确保FPC212和PCB211焊接牢固。并且,电路板组件21承受的压力也不宜过大,以免损坏FPC212或PCB211的结构。
在实际应用中,各电路板组件21分别放置在各可调承载座13a的工作台131上之后,压板组件12向下移动一定距离,例如,压板组件12移动至接近各电路板组件21的第二电路板21b,但压板组件12和所有第二电路板21b之间均具有一定的间隙。然后,调节各可调承载座13a的工作台131的高度,使工作台131升高而朝向压板组件12移动,逐渐增大压板组件12和各工作台131对各电路板组件21的压力,直至各电路板组件21上承受的压力均处于合适范围内之后,固定各可调承载座13a的工作台131的高度,进行电路板组件21的焊接工序。
示例性的,各可调承载座13a的工作台131的初始高度可以保持一致,即,各可调承载座13a的工作台131与底盘11之间的间距均相等,待向各工作台131上放置电路板组件21后,将压板组件12下移一定距离,此时,压板组件12与各电路板组件21中厚度最大的电路板组件21之间的间距最近,厚度最大的电路板组件21例如是FPC212厚度最大的电路板组件21,之后,升高各可调承载座13a的工作台131至各电路板组件21承受的压力处于合适范围内。
其中,可以理解的是,压板组件12下移定位后,可以是厚度最大的电路板组件21承受的压力处于合适范围内,而其余电路板组件21承受的压力小于要求压力,通过升高其余电路板组件21所在的工作台131的高度,使其余电路板组件21承受的压力达到合适范围内。
在其他实施方式中,压板组件12也可以为固定式的压板组件12,或者,压板组件12为可升降的压板组件12,但压板组件12的位置固定不动,通过升高各可调承载座13a的工作台131的高度,实现将各电路板组件21分别压设在各工作台131和压板组件12之间。
其中,参照图8所示,可调承载座13a的支撑架132包括至少一根支撑柱1321,支撑柱1321支撑在底盘11上,支撑柱1321的一端安装在底盘11上,工作台131安装在支撑柱1321的另一端。本实施例中,将支撑柱1321安装在底盘11上的一端定义为支撑柱1321的底端,将支撑柱1321与工作台131连接的一端定义为支撑柱1321的顶端。示例性的,支撑柱1321可以竖直支撑在底盘11上,支撑柱1321的轴向与底盘11的板面方向垂直。
为了提高工作台131的稳定性,工作台131与底盘11之间可以设置至少两根支撑柱1321。以工作台131的横截面形状近似为矩形为例,支撑架132可以包括四根支撑柱1321,该四根支撑柱1321可以分别靠近工作台131的四个角部设置。或者,工作台131的横截面形状还可以近似为三角形、五边形、六边形或八边形等形状,支撑在工作台131和底盘11之间的支撑架132可以包括三根、五根、六根或八根等支撑柱1321,各支撑柱1321可以间隔设置并靠近工作台131的边缘设置。
为了实现可调承载座13a的支撑柱1321对工作台131的高度的调节,参照图8所示,在一种实施方式中,可调承载座13a的工作台131可以固定连接在支撑柱1321的顶端,并且,支撑柱1321的高度可调节,例如,支撑柱1321为可伸缩的支撑柱1321,通过调节支撑柱1321的伸长高度,改变可调承载座13a的工作台131的高度。
示例性的,支撑柱1321可以为液压杆,支撑柱1321包括杆筒和可移动的插设于杆筒内的活塞杆,工作台131可以固定连接于活塞杆的顶端。通过控制进入杆筒内的液压油的体积和压力,使活塞杆沿杆筒的轴向移动,活塞杆移动带动工作台131升降。或者,支撑柱1321可以为其他类型的可伸缩结构。
支撑柱1321为可伸缩的支撑柱1321时,在一些实施方式中,还可以通过电磁驱动的方式,调节工作台131和底盘11之间的间距。例如,工作台131和底盘11中的一者设置有磁性件(图中未示出),另一者设置有驱动线圈(图中未示出),通过调节通入驱动线圈内的电流大小,改变磁性件和驱动线圈之间的磁力,通过磁力驱动工作台131移动。以工作台131为磁性件为例,驱动线圈可以设置在底盘11内与工作台131相对的部位,工作台131与底盘11之间的磁力发生变化时,磁力驱动工作台131升高或降低,工作台131对支撑柱1321产生作用力,进而,使支撑柱1321伸长或缩短。
除了支撑柱1321为可伸缩的支撑柱1321,工作台131相对支撑柱1321固定不动,依靠支撑柱1321的伸缩带动工作台131移动的方式之外,在其他实施方式中,支撑柱1321自身的高度可以固定不变,而工作台131可以相对支撑柱1321移动,且工作台131可以固定在支撑柱1321的不同部位。通过沿支撑柱1321的轴向移动工作台131,并将工作台131固定在支撑柱1321轴向上的不同部位,调节工作台131相对于底盘11的高度。
图10为本申请实施例一提供的另一种焊接装置的结构示意图。参照图10所示,作为一种具体实施方式,可调承载座13a的支撑柱1321可以穿设于工作台131内(图中未示出),并且,支撑柱1321的外部套设有可伸缩的弹性件1322,弹性件1322的两端分别与工作台131和底盘11抵接,工作台131支撑在弹性件1322上,通过调节弹性件1322的伸缩量,调节工作台131的高度,使工作台131位于支撑柱1321上的不同部位。示例性的,支撑柱1321例如为丝杆,弹性件1322为套设在丝杆外部的弹簧,丝杆穿设于工作台131内,弹簧的两端分别抵接在底盘11和工作台131之间,通过调节弹簧的伸缩量,调节工作台131的高度。
其中,可以理解的是,穿设于工作台131内的丝杆可起到对工作台131移动的导向作用,并且,丝杆对刚性较弱的弹簧起到支撑作用限位作用,可提高弹簧的强度,提升弹簧在伸缩过程中的稳定性,限定弹簧沿丝杆的轴向伸缩移动,确保弹簧带动工作台131移动的准确性。
在调节工作台131的高度至合适位置的过程中,弹性件1322可以始终处于压缩状态,弹性件1322被压缩的弹性力对工作台131具有向上的支撑力,可增大工作台131与压板组件12之间的压力,保证工作台131和压板组件12将电路板组件21压紧。或者,弹性件1322也可以在压缩状态与伸长状态之间切换,当工作台131移动到位而弹性件1322处于伸长状态时,可通过在支撑柱1321上设置限位结构,确保工作台131的稳定性。
另外,也可以通过如前所述的电磁驱动方式调节支撑柱1321外部套设的弹性件1322的伸缩量,继续以工作台131为磁性件、底盘11中设置有驱动线圈为例,通过改变磁性件 和驱动线圈之间的磁力,驱动工作台131相对底盘11产生移动,工作台131移动带动弹性件1322伸缩。
继续参照图8所示,各可调承载座13a的工作台131的内部均设置有压力传感器14,通过压力传感器14检测工作台131上的电路板组件21承受的压力值,以在焊接前,调节可调承载座13a的工作台131的高度,将电路板组件21承受的压力控制在合适范围内。示例性的,以焊接电路板组件21要求的压力范围为5-20N为例,压力传感器14检测到电路板组件21承受的压力在5-20N之间时,说明电路板组件21承受的压力处于合适范围内,可以将可调承载座13a的工作台131固定在此高度位置。
压板组件12下移压设在电路板组件21上之后,或可调承载座13a的工作台131的高度升高后,若通过压力传感器14检测到的电路板组件21的承受压力小于焊接要求的压力,例如,压力传感器14检测到的电路板组件21上的压力小于5N,则继续缓慢上移工作台131,直至压力传感器14检测到的压力在焊接要求的合适范围内。
示例性的,压力传感器14可以靠近工作台131的工作面,即压力传感器14靠近工作台131上放置电路板组件21的表面设置,以提高压力传感器14检测电路板组件21承受压力的精确性。例如,压力传感器14可以贴合在工作台131的对应其工作面的内壁面上。
本实施例中,可以通过激光器15发射的激光产生的能量对电路板组件21进行加热,具体的,继续参照图8所示,焊接装置1包括激光器15,激光器15设置在压板组件12上方,即激光器15设置在压板组件12背离底盘11的一侧,激光器15发射的激光透过压板组件12站设置工作台131上,通过激光的能量加热位于工作台131上的电路板组件21,使PCB211的焊盘2113上的焊膏2114融化,进而,实现PCB211与FPC212的焊接连接。
激光器15可以包括激光器本体151和激光器玻璃152,激光器本体151用于发射激光,激光器玻璃152设置在激光器本体151的出光侧,激光器玻璃152用以保护激光器本体151的纯净度,避免杂质进入激光器本体151内。激光器本体151发射的激光透过激光器玻璃152和压板组件12,照射至工作台131上的电路板组件21。示例性的,激光器玻璃152可以贴合在压板组件12的背离底盘11的一侧表面。
结合图8所示,以放置在工作台131上的第一电路板21a为PCB211、层叠在第一电路板21a上的第二电路板21b为FPC212为例,激光器15发射的激光透过激光器玻璃152和压板组件12照射在FPC212的表面上,激光的能量将FPC212加热升温,FPC212升温将热量传递至PCB211的焊盘2113上的焊膏2114,使焊膏2114融化,融化后的焊膏2114受挤压而向上溢出至FPC212的背离PCB211的表面,实现FPC212和PCB211的焊接连接。
以放置在工作台131上的第一电路板21a为FPC212、层叠在第一电路板21a上的第二电路板21b为PCB211为例,激光器15发射的激光照射在PCB211的表面上,激光的能量将PCB211加热升温,PCB211升温将热量传递至其另一表面的焊盘2113上的焊膏2114,使焊膏2114融化,融化后的焊膏2114受挤压而向下流动,溢出至FPC212的背离PCB211的表面,实现FPC212和PCB211的焊接连接。
继续参照图8所示,本实施例中,压板组件12可以包括基板121,基板121与底盘11相对设置,并且,基板121能够覆盖底盘11上设置的所有承载座13共同占据的整体区域,即,所有承载座13的工作台131在基板121上的投影,均位于基板121的覆盖范围内。各电路板组件21被压设在基板121和各承载座13的工作台131之间。
示例性的,基板121可以为玻璃基板,玻璃基板的透光率高,例如,玻璃基板对激光的透过率大于99.5%,激光透过玻璃基板照射至各工作台131上。或者,基板121还可以为塑料基板,塑料基板应具有高的激光透过率,并且,塑料基板的强度高、热稳定性好,能够满足电路板组件21的焊接压力要求,激光的能量不影响塑料基板的稳定性。
另外,压板组件12还可以包括至少两个分位板122,各分位板122均设置在基板121面向底盘11的一侧表面,例如,各分位板122粘接在基板121的表面上。各分位板122与各承载座13的工作台131一一对应,分位板122与工作台131之间形成工作空间,进行电路板组件21的焊接时,电路板组件21被压设在分位板122与工作台131之间。
通过在基板121面向底盘11的表面叠设分位板122,可以增大压板组件12的强度,提高压板组件12的承压能力,提升焊接装置1的可靠性。另外,参照图8所示,相邻分位板122之间具有间隔,该间隔使得相邻承载座13之间具有一定的避让空间,该避让空间用于避让电路板组件21上的其他结构。例如,PCB211或FPC212上除了需要焊接连接的区域之外,其他区域还布置有元器件2111,通过对PCB211及FPC212的方位进行调整,使得PCB211或FPC212上的元器件2111位于相邻分位板122之间的避让空间内。或者,对于FPC212的端部连接有连接器的情况,FPC212的设有连接器的一端可以位于该避让空间内。
实施例二
在实施例一的基础上,本实施例提供一种焊接装置1。图11为本申请实施例二提供的第三种焊接装置的结构示意图。参照图11所示,与实施例一中的焊接装置1不同的是,本实施例的焊接装置1的各承载座13中,包括一个固定承载座13b,其余承载座13为可调承载座13a。以焊接装置1中设有两个承载座13为例,其中一个承载座13为固定承载座13b,另一个承载座13为可调承载座13a。
参照图11所示,固定承载座13b的工作台131与底盘11之间的间距固定不变,以固定承载座13b的支撑架132为支撑柱1321为例,固定承载座13b的支撑柱1321可以为长度不可调节的支撑柱1321,并且,工作台131可以固定安装在支撑柱1321的顶端。
需要说明的是,由于固定承载座13b的工作台131的高度不可调节,因而,焊接装置1的压板组件12应设置为可升降的压板组件12,在焊接电路板组件21之前,压板组件12与固定承载座13b的工作台131之间预留较大的空间,放置电路板组件21后,下移压板组件12,使压板组件12压设在工作台131上的电路板组件21表面。
同时进行多组电路板组件21的焊接时,可以以固定承载座13b为基准,调节可调承载座13a的工作台131的高度。示例性的,可调承载座13a的工作台131的初始高度可以低于固定承载座13b的工作台131的高度,即,进行焊接工序之前,可调承载座13a的工作台131与底盘11之间的间距小于固定承载座13b的工作台131与底盘11之间的间距。
如此,进行焊接时,下移压板组件12,将压板组件12压设在固定承载座13b的工作台131上的电路板组件21上,调节固定承载座13b的工作台131上的压力在合适范围内后,固定压板组件12的位置。然后,将各可调承载座13a的工作台131的高度升高,使可调承载座13a的工作台131上的电路板组件21被压设在工作台131和压板组件12,当可调承载座13a的工作台131上的压力位于合适范围内后,固定可调承载座13a的工作台131 的位置。
通过设置固定承载座13b,在单次只焊接一组电路板组件21的情况下,可以将该电路板组件21放置在固定承载座13b的工作台131上,在焊接前,只用调节可升降的压板组件12的高度即可,操作简单,效率高。另外,本实施例的焊接装置1,可以在原有焊接装置1包含了一个固定承载座13b的基础上进行改造,在底盘11上加装可调承载座13a,更易实施,不用报废原有焊接装置1。
图11示出了焊接装置1的固定承载座13b的支撑架132为支撑柱1321的情况,可以理解的是,固定承载座13b的支撑架132还可以为其他结构,例如,固定承载座13b的支撑架132为框架结构。另外,图11示出的焊接装置1的可调承载座13a的支撑架132为可伸缩的支撑柱1321,在其他实施方式中,可调承载座13a的支撑架132还可以为图10中所示的支撑柱1321外套设弹性件1322的结构,或者,可调承载座13a的支撑架132还可以为其他结构形式,此处不再赘述。
继续参照图11所示,对于设置有固定承载座13b的情况,可以在压板组件12上设置一个压力传感器14,例如,在压板组件12的基板121上背离底盘11的表面上设置一个压力传感器14。各可调承载座13a的工作台131内均设置一个压力传感器14。
压板组件12压设在各承载座13的工作台131上时,通过压板组件12上设置的压力传感器14检测各工作台131上的平均压力,以该压力传感器14检测的压力值作为基准,确定压板组件12的位置。然后,根据各可调承载座13a的工作台131内设置的压力传感器14检测的压力值,调节各可调承载座13a的工作台131的高度,使各可调承载座13a的工作台131上承受的压力达到合适范围。
图12为本申请实施例二提供的第四种焊接装置的结构示意图。参照图12所示,在其他实施方式中,压板组件12上不设置压力传感器14,而是在固定承载座13b的工作台131内设置压力传感器14。以固定承载座13b内的压力传感器14检测的压力值,作为调节压板组件12的高度的基准,压板组件12移动到位后,根据各可调承载座13a的工作台131内的压力传感器14检测压力值,调节各可调承载座13a的工作台131的高度。
通过将压力传感器14设置在固定承载座13b的工作台131内,固定承载座13b的工作台131内的压力传感器14检测到的压力值,更接近固定承载座13b的工作台131上承受的压力,因而,对压板组件12的定位精度更高,以该压力值作为基准,能够更精准的调节各可调承载座13a的工作台131的高度,进而,能够提升各可调承载座13a的工作台131上的电路板组件21的焊接性能。
实施例三
在实施例一和实施例二的基础上,为了提高焊接装置1对电路板组件21的加热效率,提高电路板组件21的焊接速度,本实施例对实施例一和实施例二中的焊接装置1的加热结构进行了改进。
图13为本申请实施例三提供的第五种焊接装置的结构示意图。参照图13所示,作为一种实施方式,焊接装置1中可以至少设置两个激光器15,各激光器15均设置在压板组件12背离底盘11的一侧,例如,各激光器15均设置在压板组件12的基板121的背离底盘11的一侧表面。其中,各激光器15与各承载座13一一对应,各激光器15的出光面与 各工作台131对应,例如,各激光器15的激光器玻璃152正对各工作台131。
通过在压板组件12的上方设置与各承载座13的各工作台131一一对应的多个激光器15,各激光器15的出光面对准各工作台131,各激光器15发射的激光集中照射至各工作台131,对各工作台131上的各电路板组件21集中加热,可以提高对各电路板组件21的加热效率,提高各电路板组件21的焊接速度,提高焊接装置1的焊接效率。
在实际应用中,在制造加工PCB211时,通常先形成一块面积尺寸较大的PCB211,然后再将该大尺寸的PCB211切割成多个小尺寸的、符合要求的PCB211。因此,焊接装置1中设置的多个激光器15中,部分激光器15可以用于实现对工作台131上的电路板组件21的加热功能,而另一部分激光器15则用于实现对PCB211的切割功能。
图14为本申请实施例三提供的第六种焊接装置的结构示意图。参照图14所示,具体的,多个激光器15中可以包括第一激光器15a和第二激光器15b。
第一激光器15a可以为前述设置在压板组件12背离底盘11的一侧的激光器15,第一激光器15a用于实现对工作台131上的电路板组件21的加热功能,图14中示出了压板组件12上设置有一个第一激光器15a,该第一激光器15a覆盖所有承载座13的工作台131,该第一激光器15a发射的激光可照射至各工作台131上的电路板组件21。在其他示例中,压板组件12上还可以设置有多个第一激光器15a,各第一激光器15a对应各承载座13的工作台131,此处不再赘述。
第二激光器15b可以设置在压板组件12面向底盘11的一侧,且第二激光器15b位于相邻承载座13之间的间隙内,例如,第二激光器15b设置在基板121面向底盘11的一侧表面,且第二激光器15b位于相邻分位板122之间的间隙内。第二激光器15b发射的激光照射至PCB211上伸出至工作台131之外的区域,以从相应部位切割PCB211。对此,可以在焊接前摆放PCB211时,将PCB211上需要被切割的区域对应放置在相邻承载座13之间的间隙内,第二激光器15b发射的激光直接照射至PCB211的待切割区域,对PCB211进行激光切割。
示例性的,待切割的PCB211可以为前述覆盖多个工作台131的整体式PCB211,各工作台131上的FPC212焊接于该PCB211的不同区域,第二激光器15b用于切割该PCB211上对应位于相邻工作台131之间的区域;或者,待切割的PCB211为对应各工作台131设置的各PCB211,第二激光器15b用于切割PCB211上伸出至工作台131之外的区域。
可以理解的是,基板121面向底盘11的一侧表面可以间隔设置有多个第二激光器15b,各第二激光器15b布置在相邻分位板122之间的空隙内,可以是各相邻的承载座13的分位板122之间均设置有第二激光器15b,也可以是部分相邻的承载座13的分位板122之间设有第二激光器15b。
实施例四
为了提高焊接装置1对电路板组件21的加热效率,提高电路板组件21的焊接速度,在实施例一和实施例二的基础上,本实施例提供一种焊接装置1,本实施例提供的焊接装置1中,对应各承载座13还设置有加热结构,以通过各承载座13上的加热结构对各承载座13进行集中加热,提高对各承载座13上的电路板组件21的加热效率。
图15为本申请实施例四提供的第七种焊接装置的结构示意图。参照图15所示,在通 过压板组件12上的激光器15透过压板组件12对各承载座13的工作台131上的电路板组件21进行加热的基础上,还可以对应各承载座13设置激光器15,以加快对各承载座13的工作台131上的电路板组件21的加热速度,提升电路板组件21的焊接速度。
具体的,可以在各承载座13上分别设置第三激光器15c,第三激光器15c位于工作台131和底盘11之间,例如,第三激光器15c可以设置在工作台131面向底盘11的一侧表面,工作台131可以为透光性好的工作台131,构成工作台131的材料例如可以为玻璃或透光性好、热稳定性好的塑料。第三激光器15c发射的激光透过工作台131,照射至工作台131上的电路板组件21,以对电路板组件21进行加热。
结合图15所示,位于压板组件12上方的激光器15对电路板组件21的一侧表面进行加热,位于工作台131下方的第三激光器15c对电路板组件21的另一侧表面进行加热,通过对电路板组件21的两侧同时进行加热,提高了焊接装置1对电路板组件21的加热效率,提高了电路板组件21的焊接速度,提升了焊接装置1的焊接效率。
图16为本申请实施例四提供的第八种焊接装置的结构示意图。参照图16所示,除了在各承载座13的工作台131下方设置激光器15,利用激光的能量对各工作台131上的电路板组件21进行加热以外,还可以在各工作台131内设置加热器1311,加热器1311例如为电加热器,加热器1311产生的热量传导至工作台131的工作面,以对工作台131上的电路板组件21进行加热。各工作台131内的加热器1311与压板组件12上的激光器15共同配合,对电路板组件21的两侧同时加热,提高电路板组件21的加热效率和焊接速度,提升焊接装置1的焊接效率。
另外,可以理解的是,本实施例提供的焊接装置1,还可以设置有前述实施例三中用于对PCB211进行切割的第二激光器15b,此处不再赘述。
实施例五
在实施例一和实施例二的基础上,本实施例提供一种电路板组件21焊接方法(以下简称焊接方法),该焊接方法应用于实施例一或实施例二中的焊接装置1。
图17为本申请实施例五提供的电路板组件焊接方法的流程示意图。参照图17所示,焊接方法包括如下步骤:
S100、将各第一电路板一一对应地放置在各承载座的工作台上;其中,第一电路板的待焊面面向压板组件。
结合图8所示,首先将各第一电路板21a放置在各承载座13的工作台131上,使第一电路板21a的待焊面朝上,即第一电路板21a的待焊面面向工作台131上方的压板组件12。
以第一电路板21a为PCB211为例,首先将各PCB211分别放置在各工作台131上,PCB211的设置有焊盘2113的一侧表面朝上。可以理解的是,PCB211可以事先在焊盘2113上印刷好焊膏2114,工作台131上通常设置有定位区域,将PCB211放置在工作台131上的定位区域内后,在PCB211的焊膏2114上再涂覆一层助焊剂。
或者,第一电路板21a可以为FPC212,首先将各FPC212放置在各工作台131上,FPC212设置有焊接引脚2122的一侧表面朝上。
S200、将各第二电路板一一对应地层叠在各工作台上的各第一电路板上;其中,第二电路板的待焊面面向第一电路板。
放置好第一电路板21a之后,将第二电路板21b层叠在第一电路板21a上,第二电路板21b的待焊面面向第一电路板21a。
以第一电路板21a为PCB211、第二电路板21b为FPC212为例,在工作台131上放置好PCB211后,将FPC212放置在PCB211上,其中,FPC212上集中设置有焊接引脚2122的区域对应位于PCB211上的焊接区域211a内。以第一电路板21a为FPC212、第二电路板21b为PCB211为例,在工作台131上放置好FPC212后,将PCB211层叠在FPC212上,使PCB211的焊接区域211a与FPC212上设置有焊接引脚2122的区域对应。
另外,需要说明的是,放置好电路板组件21后,焊接电路板组件21之前,需要调节各可调承载座13a的工作台131的高度,因而,对于PCB211为如前所述的整体式的PCB211,PCB211覆盖各工作台131、各FPC212焊接在PCB211上的不同区域的情况,第一电路板21a可以为FPC212、第二电路板21b可以为PCB211,可以先将各FPC212放置在各工作台131上,然后,将整体式的PCB211层叠在各FPC212上,以免调节各可调承载座13a的工作台131时,对整体式的PCB211造成损伤。
S300、将压板组件压设在各工作台上的第二电路板上。
放置好电路板组件21后,调节工作台131与压板组件12之间的间距,使压板组件12压设在工作台131上的第二电路板21b上。例如,压板组件12压设在各FPC212上或各PCB211上,或者,压板组件12压设在整体式的PCB211上。
此时,压板组件12可以仅起到预压作用,可以是定位了压板组件12的高度,各工作台131上的电路板组件21承受的压力可以均小于焊接要求的压力范围,或者,仅有一个或部分工作台131上的电路板组件21承受的压力在焊接要求的压力范围内,其余工作台131上的电路板组件21承受的压力小于焊接所要求的压力范围。
以焊接要求的压力为8-20N为例,此时,各工作台131上的电路板组件21承受的压力可以均小于8N,或者,仅有一个或部分工作台131上的电路板组件21承受的压力在8-20N的范围内,其余工作台131上的电路板组件21承受的压力小于8N。
S400、调节各可调承载座的工作台与底盘之间的间距,使各工作台上的承载压力处于预设压力范围内。
定位好压板组件12后,针对于不同可调承载座13a的工作台131上的压力,调节各可调承载座13a的工作台131的高度,使各承载座13的工作台131上的承载压力处于预设压力范围内,该预设压力范围为焊接要求的压力范围,例如,预设压力范围为8-20N。
应当说明的是,只要各承载座13的工作台131上的承载压力处于预设压力范围内,满足电路板组件21的焊接要求即可,而不必使得各承载座13的工作台131上的承载压力均完全一致。
具体的,结合图8所示,以各承载座13均为可调承载座13a为例,将压板组件12压设在各工作台131上的第二电路板21b上,定位压板组件12的高度后,使得其中一个工作台131或部分工作台131上的承载压力处于预设压力范围内,而其余工作台131上的承载压力小于预设压力范围内的最小压力值,或者,所有作台上的承载压力均小于预设压力范围内的最小压力值。
然后,升高承载压力小于预设压力范围内的最小压力值的工作台131的高度,即增大这些工作台131与底盘11之间的间距,减小这些工作台131与压板组件12之间的间距, 增大这些工作台131上的承载压力,使这些工作台131上的承载压力达到预设压力范围内后,固定这些工作台131的高度。
在定位好压板组件12时,调节各可调承载座13a的工作台131的高度之前,将各可调承载座13a的工作台131上的承载压力控制在不超过预设压力范围的最大压力值,以免压力过大对电路板组件21造成损伤。
其中,由于各承载座13均为可调承载座13a,各承载座13的工作台131的高度均可调节,因而,压板组件12可以设置为固定高度的压板组件12,或者,压板组件12可以为能够升降高度的压板组件12,本实施例对此不作限制。
示例性的,可以通过各可调承载座13a的工作台131内的压力传感器14,实时检测各可调承载座13a的工作台131上的承载压力。
结合图11所示,以各承载座13中包括一个固定承载座13b,固定承载座13b的工作台131的高度不可调节,其余承载座13为可调承载座13a为例,压板组件12可以为可升降高度的压板组件12。在进行焊接工序前,各可调承载座13a的工作台131的高度可以低于固定工作台131的高度,即,各可调承载座13a的工作台131与底盘11之间的间距小于固定承载座13b的工作台131与底盘11之间的间距。
将压板组件12预压在各工作台131的第二电路板21b上、定位好压板组件12的高度后,应使固定承载座13b的工作台131上的承载压力处于预设压力范围内,各可调承载座13a的工作台131上的承载压力小于预设压力范围内的最小值,以免可调承载座13a的工作台131上的初始压力过大,而对可调承载座13a的工作台131上的电路板组件21造成损伤。
然后,在逐步调高各可调承载座13a的工作台131的高度,增大各可调承载座13a的工作台131上的承载压力,直至各可调承载座13a的工作台131上的承载压力处于预设压力范围内后,固定各可调承载座13a的工作台131的高度。
示例性的,可以通过各可调承载座13a的工作台131内的压力传感器14,实时检测各可调承载座13a的工作台131上的承载压力。定位压板组件12的高度时,可以通过压板组件12上的压力传感器14,检测压板组件12和固定承载座13b的工作台131之间的压力,或者,通过固定承载座13b的工作台131内设置的压力传感器14,实时检测固定承载座13b的工作台131上的承载压力。
S500、将第二电路板和第一电路板焊接连接。
将各承载座13的工作台131上的承载压力调节到预设压力范围内后,开始电路板组件21的焊接工序,通过焊接装置1对工作台131上的电路板组件21进行加热,使PCB211的焊盘2113上的焊膏2114融化,并且,压板组件12和工作台131对电路板组件21的压力,使融化的焊膏2114被挤压并溢出至FPC212的背离PCB211的一侧表面,实现PCB211和FPC212的焊接连接。
在本申请实施例的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应作广义理解,例如,可以是固定连接,也可以是通过中间媒介间接相连,可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、 “第四”等(如果存在)是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。

Claims (36)

  1. 一种电路板组件焊接装置,其特征在于,包括底盘、压板组件以及至少两个承载座,所述压板组件相对设置于所述底盘的上方,所述承载座安装在所述底盘上,且所述承载座位于所述压板组件和所述底盘之间;所述承载座包括工作台,所述工作台位于所述承载座面向所述压板组件的一侧,所述工作台用于放置电路板组件,所述压板组件用于压设在位于所述工作台上的电路板组件上;
    其中,所述至少两个承载座中至少包括一个可调承载座,所述可调承载座的工作台与所述底盘之间的间距可调节。
  2. 根据权利要求1所述的电路板组件焊接装置,其特征在于,所述承载座还包括支撑架,所述支撑架连接在所述工作台和所述底盘之间,所述可调承载座的支撑架可调节所述工作台相对于所述底盘的高度。
  3. 根据权利要求2所述的电路板组件焊接装置,其特征在于,所述可调承载座的支撑架包括至少一根支撑柱,所述支撑柱支撑在所述底盘上。
  4. 根据权利要求3所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台固定在所述支撑柱的顶端,且所述可调承载座的支撑柱的高度可调节。
  5. 根据权利要求3所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台活动连接于所述支撑柱并可沿所述支撑柱的轴向移动,且所述可调承载座的工作台可固定在所述支撑柱的不同部位。
  6. 根据权利要求5所述的电路板组件焊接装置,其特征在于,所述可调承载座的支撑柱穿设于所述工作台内,且所述支撑柱的外部套设有可伸缩的弹性件,所述弹性件的两端分别与所述工作台和所述底盘抵接。
  7. 根据权利要求1-6任一项所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台的内部设置有压力传感器。
  8. 根据权利要求1-7任一项所述的电路板组件焊接装置,其特征在于,所述至少两个承载座中包括一个固定承载座,所述固定承载座的工作台与所述底盘之间的间距固定不变。
  9. 根据权利要求8所述的电路板组件焊接装置,其特征在于,所述压板组件上设置有压力传感器,或者,所述固定承载座的工作台内设置有压力传感器。
  10. 根据权利要求1-9任一项所述的电路板组件焊接装置,其特征在于,所述压板组件包括基板,所述基板与所述底盘相对设置,所有所述承载座的工作台在所述基板上的投影,均位于所述基板的覆盖范围内。
  11. 根据权利要求10所述的电路板组件焊接装置,其特征在于,所述压板组件还包括至少两个分位板,各所述分位板均设置在所述基板面向所述底盘的一侧表面,各所述分位板与各所述承载座的各工作台一一对应,所述分位板压设在位于所述工作台上的电路板组件上;
    其中,相邻所述分位板之间具有间隔。
  12. 根据权利要求1-11任一项所述的电路板组件焊接装置,其特征在于,还包括至少一个激光器,至少一个所述激光器设置在所述压板组件背离所述底盘的一侧,至少一个所述激光器发射的激光透过所述压板组件照射至所述工作台上的电路板组件。
  13. 根据权利要求12所述的电路板组件焊接装置,其特征在于,包括至少两个所述激光器,各所述激光器均设置在所述压板组件背离所述底盘的一侧,且各所述激光器的出光面一一对应各所述工作台。
  14. 根据权利要求12所述的电路板组件焊接装置,其特征在于,包括至少两个所述激光器,至少两个所述激光器中包括至少一个第一激光器和至少一个第二激光器;
    所述第一激光器设置在所述压板组件背离所述底盘的一侧;所述第二激光器设置在所述压板组件面向所述底盘的一侧,且所述第二激光器位于相邻所述承载座之间的间隙内。
  15. 根据权利要求12所述的电路板组件焊接装置,其特征在于,包括多个所述激光器,多个所述激光器中包括至少两个第三激光器,各所述第三激光器一一对应各所述承载座设置,且所述第三激光器位于所述工作台和所述底盘之间,所述第三激光器的出光面朝向所述工作台,所述第三激光器发射的激光用于透过所述工作台照射至电路板组件。
  16. 根据权利要求1-12任一项所述的电路板组件焊接装置,其特征在于,所述工作台内设置有加热器。
  17. 一种电路板组件焊接方法,应用于权利要求1-16任一项所述的电路板组件焊接装置,其特征在于,包括:
    将各第一电路板一一对应地放置在各承载座的工作台上;其中,所述第一电路板的待焊面面向压板组件;
    将各第二电路板一一对应地层叠在各所述工作台上的各所述第一电路板上;其中,所述第二电路板的待焊面面向所述第一电路板;
    将所述压板组件压设在各所述工作台上的所述第二电路板上;
    调节各可调承载座的工作台与底盘之间的间距,使各所述工作台上的承载压力处于预设压力范围内;
    将所述第二电路板和所述第一电路板焊接连接。
  18. 根据权利要求17所述的电路板组件焊接方法,其特征在于,各所述承载座均为所述可调承载座,所述将所述压板组件压设在各所述工作台上的所述第二电路板上,调节各可调承载座的工作台与底盘之间的间距,使各所述工作台上的承载压力处于预设压力范围内,具体包括:
    所述压板组件压设各所述第二电路板,使其中至少一个工作台上的承载压力处于所述预设压力范围内,其余所述工作台上的承载压力小于所述预设压力范围内的最小压力值,或者,使所有所述工作台上的承载压力均小于所述预设压力范围内的最小压力值;
    增大承载压力小于所述预设压力范围内的最小压力值的工作台与所述底盘之间的间距,使所有所述工作台上的承载压力均处于所述预设压力范围内。
  19. 根据权利要求17所述的电路板组件焊接方法,其特征在于,各所述承载座中包括一个固定承载座,所述将所述压板组件压设在各所述工作台上的所述第二电路板上,调节各可调承载座的工作台与底盘之间的间距,使各所述工作台上的承载压力处于预设压力范围内,具体包括:
    所述压板组件压设各所述第二电路板,使所述固定承载座的工作台上的承载压力处于所述预设压力范围内,各所述可调承载座的工作台上的承载压力小于所述预设压力范围内的最小压力值;
    增大各所述可调承载座的工作台与所述底盘之间的间距,使各所述可调承载座的工作台上的承载压力处于所述预设压力范围内。
  20. 根据权利要求17-19任一项所述的电路板组件焊接方法,其特征在于,所述第一电路板和所述第二电路板中的一者为印制电路板,另一者为柔性电路板。
  21. 一种电路板组件焊接装置,其特征在于,包括底盘、压板组件以及至少两个承载座,所述压板组件相对设置于所述底盘的上方,所述承载座安装在所述底盘上,且所述承载座位于所述压板组件和所述底盘之间;所述承载座包括工作台,所述工作台位于所述承载座面向所述压板组件的一侧,所述工作台用于放置电路板组件,所述压板组件用于压设在位于所述工作台上的电路板组件上;所述电路板组件包括叠放在所述工作台上的第一电路板和第二电路板,所述第二电路板位于所述第一电路板的背离所述工作台的一侧;
    其中,所述至少两个承载座中至少包括一个可调承载座,所述可调承载座的工作台与所述底盘之间的间距可调节。
  22. 根据权利要求21所述的电路板组件焊接装置,其特征在于,所述承载座还包括支撑架,所述支撑架连接在所述工作台和所述底盘之间,所述可调承载座的支撑架可调节所述工作台相对于所述底盘的高度。
  23. 根据权利要求22所述的电路板组件焊接装置,其特征在于,所述可调承载座的支撑架包括至少一根支撑柱,所述支撑柱支撑在所述底盘上。
  24. 根据权利要求23所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台固定在所述支撑柱的顶端,且所述可调承载座的支撑柱的高度可调节。
  25. 根据权利要求23所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台活动连接于所述支撑柱并可沿所述支撑柱的轴向移动,且所述可调承载座的工作台可固定在所述支撑柱的不同部位。
  26. 根据权利要求25所述的电路板组件焊接装置,其特征在于,所述可调承载座的支撑柱穿设于所述工作台内,且所述支撑柱的外部套设有可伸缩的弹性件,所述弹性件的两端分别与所述工作台和所述底盘抵接。
  27. 根据权利要求21-26任一项所述的电路板组件焊接装置,其特征在于,所述可调承载座的工作台的内部设置有压力传感器。
  28. 根据权利要求21-27任一项所述的电路板组件焊接装置,其特征在于,所述至少两个承载座中包括一个固定承载座,所述固定承载座的工作台与所述底盘之间的间距固定不变。
  29. 根据权利要求28所述的电路板组件焊接装置,其特征在于,所述压板组件上设置有压力传感器,或者,所述固定承载座的工作台内设置有压力传感器。
  30. 根据权利要求21-29任一项所述的电路板组件焊接装置,其特征在于,所述压板组件包括基板,所述基板与所述底盘相对设置,所有所述承载座的工作台在所述基板上的投影,均位于所述基板的覆盖范围内。
  31. 根据权利要求30所述的电路板组件焊接装置,其特征在于,所述压板组件还包括至少两个分位板,各所述分位板均设置在所述基板面向所述底盘的一侧表面,各所述分位板与各所述承载座的各工作台一一对应,所述分位板压设在位于所述工作台上的电路板组件上;
    其中,相邻所述分位板之间具有间隔。
  32. 根据权利要求21-31任一项所述的电路板组件焊接装置,其特征在于,还包括至少一个激光器,至少一个所述激光器设置在所述压板组件背离所述底盘的一侧,至少一个所述激光器发射的激光透过所述压板组件照射至所述工作台上的电路板组件。
  33. 根据权利要求32所述的电路板组件焊接装置,其特征在于,包括至少两个所述激光器,各所述激光器均设置在所述压板组件背离所述底盘的一侧,且各所述激光器的出光面一一对应各所述工作台。
  34. 根据权利要求32所述的电路板组件焊接装置,其特征在于,包括至少两个所述激光器,至少两个所述激光器中包括至少一个第一激光器和至少一个第二激光器;
    所述第一激光器设置在所述压板组件背离所述底盘的一侧;所述第二激光器设置在所述压板组件面向所述底盘的一侧,且所述第二激光器位于相邻所述承载座之间的间隙内。
  35. 根据权利要求32所述的电路板组件焊接装置,其特征在于,包括多个所述激光器,多个所述激光器中包括至少两个第三激光器,各所述第三激光器一一对应各所述承载座设置,且所述第三激光器位于所述工作台和所述底盘之间,所述第三激光器的出光面朝向所述工作台,所述第三激光器发射的激光用于透过所述工作台照射至电路板组件。
  36. 根据权利要求21-32任一项所述的电路板组件焊接装置,其特征在于,所述工作台内设置有加热器。
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