Patch machine uses industrial computer

Abstract

This utility model discloses an industrial control computer for industrial applications, specifically an industrial control computer for a pick-and-place machine. It includes a housing, a board assembly and a heat dissipation assembly housed within the housing. The housing includes a cover and a base plate located below the cover. The cover has an exhaust vent on its top side and air inlets on its sides and rear side. The heat dissipation assembly includes an exhaust fan, an intake fan, and a heat sink. The intake fan is located inside the cover corresponding to the air inlet, the exhaust fan is located inside the cover corresponding to the exhaust vent, and the heat sink is located above the exhaust fan. This solution addresses the FPGA high-temperature alarm problem and meets the requirements of pick-and-place machine industrial control computers for compact size, efficient heat dissipation, and reasonable cost.

Description

Technical Field

[0001] This utility model relates to the field of industrial control computers, specifically an industrial control computer for a chip mounter. Background Technology

[0002] As the core equipment of the SMT production line, the pick-and-place machine integrates multiple disciplines such as optics, electrical engineering, mechanics, and software, and has a complex and precise structure. Its core control center usually adopts an industrial computer (i.e., an industrial control computer), which is a key component for realizing the intelligent, efficient, and automated operation of the pick-and-place machine due to its advantages such as strong anti-interference ability, strong vibration resistance, high durability, and low failure rate.

[0003] However, in the domestic R&D and production practice of pick-and-place machines, the core components of the machine are usually installed inside the cavity of a cast iron base. Limited by the base size (increasing the base size significantly reduces its rigidity, thus affecting placement accuracy) and the need to accommodate numerous functional modules and their electronic control components, the space inside the cavity for fixing the industrial computer is extremely limited and compact. Currently, mainstream industrial computers on the market are generally too large to fit into such a confined installation space.

[0004] While a limited selection of compact desktop industrial PCs exists, the range of choices is narrow, and substitutability is poor. The cast iron base cavity inherently limits heat dissipation due to its compact internal space. Once installed, the industrial PC (especially commercially available products) generates significant heat under the continuous, high-load placement operations of the pick-and-place machine, particularly from its integrated FPGA and other high-performance chips. Because of the confined cavity space and the possibility that the industrial PC's own cooling design is not optimized for this extreme environment, heat cannot be effectively and promptly dissipated. This can easily lead to overheating of the industrial PC's internal temperature (especially the FPGA), triggering alarms or even causing system crashes, severely impacting equipment stability, production efficiency, and R&D progress. The heat dissipation capabilities of different brands of industrial PCs vary significantly, and their poor performance within the confined space is particularly pronounced.

[0005] In summary, the main drawback of the existing technology is the lack of a dedicated industrial computer solution that can simultaneously meet the installation requirements of the extremely compact space inside the cast iron base cavity of the chip mounter and possess excellent heat dissipation performance to cope with the challenges of continuous high-temperature operation. Utility Model Content

[0006] The purpose of this utility model is to overcome the problems existing in the prior art and provide a compact, efficient heat dissipation, and cost-effective industrial control computer for chip mounters. To achieve the above objective, this utility model provides the following technical solution:

[0007] An industrial control computer for a pick-and-place machine includes a housing, a circuit board assembly and a heat dissipation assembly disposed within the housing. The housing includes a cover and a base plate located below the cover. The top side of the cover has an exhaust port, and the sides and rear side of the cover have air inlets. The heat dissipation assembly includes an exhaust fan, an intake fan and a heat sink. The intake fan is located inside the cover corresponding to the position of the air inlet, the exhaust fan is located inside the cover corresponding to the position of the exhaust port, and the heat sink is located above the exhaust fan.

[0008] Preferably, the heat sink includes a heat sink base plate and parallel arranged heat sink fins. The heat sink is provided with a first partition and a second partition formed by the intervals between the heat sink fins. The first partition is perpendicular to the arrangement direction of the heat sink fins, and the second partition is composed of multiple concentric circles.

[0009] Preferably, the exhaust port is one or two circular holes, and the air inlet is a cluster of small circular holes arranged in a circumferential array for heat dissipation.

[0010] Preferably, the front side of the cover is provided with a front mounting plate, and each end of the upper and lower sides of the front mounting plate is provided with a bent flange extending into the inside of the cover. The bent flange is provided with a threaded hole, and the bottom plate and the cover are provided with through holes at positions corresponding to the bent flanges of the front mounting plate.

[0011] Preferably, the industrial control computer further includes an industrial control computer motherboard, a main control board, a PCIe flexible cable, and a relay board. The industrial control computer motherboard is fixedly connected to the base plate with screws. The industrial control computer motherboard has a PCIe slot, which is inserted into the PCIe interface at one end of the PCIe flexible cable to achieve signal transmission. The other end of the PCIe flexible cable has a PCIe slot, which is inserted into the PCIe interface on the main control board to achieve signal transmission. The main control board is fixedly mounted on a full-height baffle with screws, and the full-height baffle is fixed to the front mounting plate with screws. The main control board has an 18-pin connector, which is connected to an 18-pin connector on the rear side of the relay board via a wire harness. The relay board has multiple 3-pin connectors on the front side for connecting surface-mount sub-modules, and a spare 3-pin connector on the rear side.

[0012] Preferably, the industrial control computer motherboard is also equipped with multi-specification external connectors, a ring heat sink, a cooling fan, a solid-state drive, memory modules, and additional heat sinks; the main control board integrates an optical port, a Type-C interface, a thin cooling fan, and multi-specification external connectors; the multiple 3-pin connectors on the front side of the relay board are respectively connected to the sub-modules of the pick-and-place machine's XY module, peripheral module, PCB module, automatic tray module, tape cutter module, and feeder base module.

[0013] Preferably, the base plate is provided with a C-shaped support and an L-shaped support, the main control board is fixed to the base plate by the C-shaped support, and the PCIe flexible cable is fixed to the L-shaped support.

[0014] Preferably, mounting plates are provided on both sides and the rear side of the base plate for fixed connection with the cover; Z-shaped support members are provided on both sides of the bottom of the base plate, and rubber pads are provided at the bottom of the Z-shaped support members.

[0015] Preferably, the industrial computer has a volume of 260*150*80-300*200*100mm. 3 .

[0016] Preferably, the cover is a bent sheet metal part with a thickness of 1mm, and the base plate is a bent sheet metal part with a thickness of 2mm.

[0017] The technical solution of this utility model can achieve the following effects: the outer shell is integrally formed by sheet metal bending and surface treatment, with fewer parts and a compact size, thus simplifying the structure; the heat sink adopts a partitioned design: a central circular heat sink area, a double circular heat sink area, and a horizontal partition groove on the edge, which enhances the multi-directional heat exchange efficiency; the top side of the shell is provided with an exhaust hole, and the sides and rear sides of the shell are provided with air inlets. The directional air intake / exhaust fan + partitioned heat sink + multi-directional heat sink cluster form a three-dimensional air duct, which solves the FPGA high temperature alarm problem and meets the needs of the industrial control computer for pick-and-place machines for small size, efficient heat dissipation, and reasonable cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the industrial control computer structure for the chip mounter of this utility model;

[0019] Figure 2 This is a schematic diagram of the cover structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the industrial control computer used in the pick-and-place machine of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of the industrial control computer used in the pick-and-place machine of this utility model. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the heat sink structure of this utility model.

[0023] In the diagram: 1. Cover; 2. Base plate; 3. Exhaust vent; 4. Intake vent; 5. Heat sink; 6. Small heat sink; 7. First partition; 8. Second partition; 9. Front mounting plate; 10. Industrial computer motherboard; 11. Main control board; 12. PCIe flexible cable; 13. Repeater board; 14. Full-height baffle; 15. C-type support; 16. L-type support; 17. Z-type support; 18. USB interface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. The terms "front," "rear," "left," and "right" in this application are only for describing relative positions and do not have any meaning of absolute direction.

[0025] This utility model provides an industrial control computer for a chip mounter, such as... Figure 1 As shown, the device includes a housing, a circuit board assembly disposed within the housing, and a heat dissipation assembly. The housing includes a cover 1 and a base plate 2 located below the cover 1. The cover 1 has an exhaust port 3 on its top side and air inlets 4 on its sides and rear side. The heat dissipation assembly includes an exhaust fan, an intake fan, and heat sinks 5. The intake fan is located inside the cover 1 corresponding to the air inlets 4, and the exhaust fan is located inside the cover 1 corresponding to the exhaust ports 3. The heat sinks 5 are located above the exhaust fans. The heat sinks 5 include a heat dissipation base plate 2 and parallel-arranged heat dissipation fins 6, such as... Figure 5 As shown, the heat sink 5 is provided with a first partition 7 and a second partition 8 formed by the spaced heat sink 6. The first partition 7 is perpendicular to the arrangement direction of the heat sink 6, and the second partition 8 is composed of multiple concentric circles. The exhaust hole 3 is provided as one or two circular holes, and the air inlet 4 is a cluster of small circular heat sink holes in a circumferential array. The front side of the cover 1 is provided with a front mounting plate 9. The upper and lower ends of the front mounting plate 9 are each provided with a bent flange extending into the cover 1. The bent flange is provided with a threaded hole. The bottom plate 2 and the cover 1 are provided with through holes at positions corresponding to the bent flanges of the front mounting plate 9. The bottom plate 2 is provided with mounting plates on both sides and the rear side for fixed connection with the cover 1. The bottom sides of the bottom plate 2 are provided with Z-shaped support members 17, and the bottom of the Z-shaped support members 17 is provided with rubber pads.

[0026] Specifically, the base plate 2 has four M3 threaded holes on each of its two sides and rear side (the base plate 2 is 2mm thick); the bottom surface of the base plate 2 on both sides has multiple M3 threaded holes, which are fixed to two Z-shaped support members 17 by means of eight M3 semi-circular head screws (each Z-shaped support member 17 has four Φ3.3mm through holes). A 1mm thick rubber pad is glued to the lower part of the Z-shaped support member 17; the Z-shaped support member 17 also has two quincunx-shaped cutouts (for fixing to the cast iron base).

[0027] The industrial control computer employs multiple heat dissipation measures with strong cooling capabilities. The motherboard 10 and main control board 11 of the industrial control computer are equipped with built-in cooling fans. Threaded posts are welded to the casing 1, fixing one intake cooling fan and two exhaust cooling fans. Circular cutouts are made at the locations of the two exhaust cooling fans on the casing 1 to allow direct cooling of the heat sinks 5 fixed to the casing 1. The second partition 8 of the heat sink 5 creates a central circular heat dissipation area and two annular heat sink areas; the first partition 7 is 4mm wide, enabling multi-directional heat exchange.

[0028] Each bend on the front mounting plate 9 has an M3 threaded hole. The front mounting plate 9 is fixed to the base plate 2 and the cover 1 through the M3 threaded holes on the bends (screws pass through the Φ3.3mm through holes on the base plate 2 and the cover 1 and are installed into the M3 threaded holes on the bends of the front mounting plate 9). The front mounting plate 9 is fixed to 6 USB ports 18 by 12 M3 semi-circular head screws (the front mounting plate 9 is 2mm thick). The cover 1 is a 1mm thick bent sheet metal. The left and right sides of the cover 1 each have 2 sets of densely arranged circular arrays of small heat dissipation holes, and the rear side of the cover 1 has 3 sets of densely arranged circular arrays of small heat dissipation holes, forming 5 air intake holes 4. The left outer side, right outer side, and rear outer side of the cover 1 each have 8 M3 countersunk screw mounting holes, and the cover 1 is fixed to the base plate 2 by means of 8 M3 countersunk screws. The top of the cover 1 has two large circular ventilation holes as two exhaust holes 3, and the size of a single exhaust hole 3 is Φ58mm.

[0029] The upper interior of the casing 1 is equipped with a press-fit nut. The heat sink 5 is connected to the press-fit nut on the casing 1 by four M3 cylindrical head screws, thereby achieving a fixed connection with the casing 1. The casing 1 is 1mm thick, and the thread depth is insufficient, so a press-fit nut is specially provided to meet the need for fixing it to the heat sink 5.

[0030] The outer casing of this application is integrally formed from thin metal sheet through sheet metal bending and surface treatment processes. This results in fewer parts and a compact size, simplifying the structure. Core components such as the industrial control computer motherboard 10 and heat sink 5 can be directly purchased as standard products, while the relay board and main control board 11 are custom-developed as needed. This allows the overall cost per unit to be controlled within 3200 yuan, significantly reducing the R&D cost of the placement machine and helping to reduce costs and increase efficiency. The heat sink 5 adopts a partitioned design: a central circular heat dissipation area, a double-ring heat dissipation area, and horizontal partition grooves at the edges, enhancing multi-directional heat exchange efficiency. The left and right sides of the casing 1 each have two sets of circumferential array heat dissipation hole clusters, and the rear side has three sets of heat dissipation hole clusters, forming a three-dimensional airflow. Figure 2 As shown.

[0031] Furthermore, such as Figure 3 and Figure 4 As shown, the industrial control computer also includes an industrial control computer motherboard 10, a main control board 11, a PCIe flexible cable 12, and a relay board 13. The industrial control computer motherboard 10 is fixedly connected to the base plate 2 with screws. The industrial control computer motherboard 10 is provided with a PCIe slot. The PCIe slot of the industrial control computer motherboard 10 is inserted into the PCIe interface at one end of the PCIe flexible cable 12 to realize signal transmission. The other end of the PCIe flexible cable 12 is provided with a PCIe slot. The PCIe slot of the PCIe flexible cable 12 is inserted into the PCIe interface on the main control board 11 to realize signal transmission. The main control board 11 is fixedly mounted on a full-height baffle 14 with screws. The full-height baffle 14 is fixed to the front mounting plate 9 with screws. The main control board 11 is provided with an 18-pin connector, which is connected to an 18-pin connector on the rear side of the relay board 13 through a wire harness. The relay board 13... The front side has nine 3-pin connectors for connecting the surface mount sub-modules, and the rear side has one spare 3-pin connector. The industrial control computer motherboard 10 also has multi-specification external connectors, a ring heat sink 5, a cooling fan, a solid-state drive, memory modules, and an additional heat sink 5. The main control board 11 integrates an optical port, a Type-C interface, a thin cooling fan, and multi-specification external connectors. Of the nine 3-pin connectors on the front side of the relay board 13, six correspond to the XY module, peripheral module, PCB module, automatic tray module, tape cutter module, and feeder base module of the surface mount machine, respectively, and the remaining three are reserved spare 3-pin connectors. The base plate 2 has a C-shaped support 15 and an L-shaped support 16. The main control board 11 is fixed to the base plate 2 through the C-shaped support 15, and the PCIe flexible cable 12 is fixed to the L-shaped support 16.

[0032] Specifically, the industrial control computer motherboard 10 is fixed to the base plate 2 using four M3 single-headed hex studs and four M3 socket head cap screws. The main control board 11 is fixed to the base plate 2 using two M3 single-headed hex studs, two M3 socket head cap screws, and two C-shaped support brackets 15 (these are for ensuring a stable connection between the main control board 11 and the PCIe flexible cable 12, preventing signal transmission problems). The main control board 11 is fixed to the full-height baffle 14 using two semi-circular head socket head cap screws, and the full-height baffle 14 is fixed to the front mounting plate 9 using one M4 socket head cap screw. The main control board 11 has multiple external connectors, an optical port, a PCIe interface, a Type-C interface, a slim cooling fan, and an 18-pin connector. The 18-pin connector is connected to the 18-pin connector on the back of the relay board 13 via a wiring harness. The front of the relay board 13 has nine 3-pin connectors for connecting various sub-modules of the pick-and-place machine. (These sub-modules include the XY module, peripheral module, PCB module, automatic tray module, tape cutter module, feeder base module, etc.) The back of the relay board 13 also has a separate spare 3-pin connector. The relay board 13 and USB interface 18 are fixed to the front mounting plate 9 with screws, and corresponding cutout windows are provided on the front mounting plate 9 to meet the external cable connection requirements of the relay board 13 and USB interface 18. Furthermore, the front mounting plate 9 has cutout windows of a specific shape at the positions corresponding to the external connectors of the industrial control computer motherboard 10 and the main control board 11, to meet the cable connection requirements of the external connectors on both types of boards. The PCIE flexible flat cable 12 is fixed to the L-shaped support 16 by two M2 hex socket head cap screws, and the L-shaped support 16 is firmly fixed to the base plate 2 by two M4 hex socket head cap screws.

[0033] While meeting the requirements for good heat dissipation, the industrial computer in this application has a size of 300*200*100mm. 3 (Length, width, height), minimum size can reach 260*150*80mm 3 (Length, width, and height).

[0034] This application allows for flexible configuration via the front mounting plate 9. The opening layout can be adjusted according to the requirements of the main control board 11 connector type / quantity, the number of USB interfaces 18, and the repeater board connector configuration, without altering the overall structure. It can achieve good compatibility with self-developed electronic control systems (main control board 11, repeater board 13, etc.) without secondary modifications, supports rapid response to hardware iterations, avoids redesigning industrial control computers due to interface changes, controls modification costs, and improves R&D compatibility.

[0035] In summary, the technical solution of this application has the following beneficial effects: Space adaptability: Through the Z-shaped support with plum blossom-shaped cutouts and base locking, and the compact layered layout of the board, installation within the extreme space of the cavity is achieved; Signal stability: The PCIE flexible cable is fixed with double L-shaped support + C-shaped support with redundant reinforcement, ensuring the reliability of high-speed signal transmission; High heat dissipation efficiency: Directional inlet / outlet fans + partitioned heat sinks + multi-directional heat dissipation hole clusters solve the problem of FPGA high temperature alarm; Cost controllability: Standardized sheet metal parts and modular board design avoid the premium of niche industrial control computers and support cost reduction. The technical solution of this application provides a dedicated industrial control computer solution that can simultaneously meet the extremely compact space installation requirements inside the cast iron base cavity of the pick-and-place machine, be well compatible with self-developed electronic control systems (main control boards, relay boards, etc.) without secondary modification, have excellent heat dissipation performance to cope with the high temperature challenges of continuous operation, and be cost-controllable.

[0036] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An industrial control computer for a chip mounter, comprising a housing, a circuit board assembly and a heat dissipation assembly disposed within the housing, characterized in that, The housing component includes a cover and a base plate located below the cover. The top side of the cover is provided with an exhaust hole, and the sides and rear side of the cover are provided with air inlets. The heat dissipation assembly includes an exhaust fan, an intake fan and a heat sink. The intake fan is located inside the cover corresponding to the position of the air inlet, the exhaust fan is located inside the cover corresponding to the position of the exhaust hole, and the heat sink is located above the exhaust fan.

2. The industrial control computer for a chip mounter according to claim 1, characterized in that, The heat sink includes a heat sink base plate and parallel-arranged heat sink fins. The heat sink has a first partition and a second partition formed by the intervals between the heat sink fins. The first partition is perpendicular to the arrangement direction of the heat sink fins, and the second partition is composed of multiple concentric circles.

3. The industrial control computer for a chip mounter according to claim 1, characterized in that, The exhaust port is configured as one or two circular holes, and the air inlet is a cluster of small circular holes arranged in a circumferential array for heat dissipation.

4. The industrial control computer for a chip mounter according to claim 1, characterized in that, The front side of the cover is provided with a front mounting plate. The upper and lower ends of the front mounting plate are each provided with a bent flange extending into the cover. The bent flange is provided with a threaded hole. The bottom plate and the cover are provided with through holes at positions corresponding to the bent flanges of the front mounting plate.

5. The industrial control computer for a chip mounter according to claim 4, characterized in that, The industrial control computer also includes an industrial control motherboard, a main control board, a PCIe flexible cable, and a relay board. The industrial control motherboard is fixedly connected to the base plate with screws. The industrial control motherboard has a PCIe slot, which is inserted into the PCIe interface at one end of the PCIe flexible cable to achieve signal transmission. The other end of the PCIe flexible cable has a PCIe slot, which is inserted into the PCIe interface on the main control board to achieve signal transmission. The main control board is fixed to a full-height baffle with screws, and the full-height baffle is fixed to the front mounting plate with screws. The main control board has an 18-pin connector, which is connected to an 18-pin connector on the rear of the relay board via a wire harness. The relay board has multiple 3-pin connectors on the front for connecting surface-mount submodules, and a spare 3-pin connector on the rear.

6. The industrial control computer for a chip mounter according to claim 5, characterized in that, The industrial control computer motherboard is also equipped with multiple external connectors, a ring-shaped heat sink, a cooling fan, a solid-state drive, memory modules, and additional heat sinks; the main control board integrates an optical port, a Type-C interface, a thin cooling fan, and multiple external connectors; the multiple 3-pin connectors on the front side of the relay board are respectively connected to the sub-modules of the pick-and-place machine's XY module, peripheral module, PCB module, automatic tray module, tape cutter module, and feeder base module.

7. The industrial control computer for a pick-and-place machine according to claim 5, characterized in that, The base plate is provided with C-shaped support and L-shaped support. The main control board is fixed to the base plate through the C-shaped support, and the PCIe flexible cable is fixed to the L-shaped support.

8. The industrial control computer for a chip mounter according to any one of claims 1-7, characterized in that, Mounting plates are provided on both sides and the rear side of the base plate for fixed connection with the cover; Z-shaped support members are provided on both sides of the bottom of the base plate, and rubber pads are provided at the bottom of the Z-shaped support members.

9. The industrial control computer for a pick-and-place machine according to claim 8, characterized in that, The volume of the industrial computer is 260*150*80-300*200*100mm 3 .

10. The industrial control computer for a chip mounter according to claim 9, characterized in that, The cover is a bent sheet metal part with a thickness of 1mm, and the base plate is a bent sheet metal part with a thickness of 2mm.

Images