A programmable controller structure

Abstract

The utility model relates to servo driver technical field, concretely is a programmable controller structure, including power module, CPU module, IT module, power base, IT base, base and bottom plate, power module with power base, CPU module / IT module with IT base all are through the detachable connection of connector, and power base, IT base and base are connected through the connector head and tail and are positioned through the positioning groove and boss, the flip of each module can be stuck in 95 degree, 130 degree, 182 degree position, and the upper cover is connected with the lower cover through the buckle and is equipped with the heat dissipation hole, and the power base and IT base are through the cooperation of the telescopic top buckle and the clamping groove of bottom plate and realize quick dismounting, each module shell adopts PC+10GF material quality, and the bottom plate is aluminium alloy and length can be customized, the utility model realizes module independent dismounting, accurate positioning, overall lightweight, is applicable to the industrial automation control scene.

Description

Technical Field

[0001] This utility model relates to the field of servo driver technology, and in particular to a programmable controller structure. Background Technology

[0002] A Programmable Logic Controller (PLC) is a digital electronic system designed specifically for industrial environments. It accepts signals from input devices such as sensors and buttons, executes logical operations, sequential control, timing, and calculations according to preset programs, and controls output devices such as motors, valves, and indicator lights based on the calculation results, thereby automating the production process. While existing PLCs possess advantages such as high reliability, flexible programming, good expandability, and fast response speed, they still have the following drawbacks: 1. Difficult to maintain: Traditional programmable controllers often integrate all modules into a single housing. When a single module fails, the entire device needs to be disassembled for repair, rendering the entire device unusable. Moreover, the maintenance operation is complex, requiring major disassembly and overhaul, which affects production efficiency.

[0003] 2. Inconvenient installation and maintenance: Some multi-module programmable controllers are large in size, making them difficult to install in confined spaces or environments; and they are easily interfered with by adjacent modules during module insertion and removal, increasing the difficulty of installation and maintenance.

[0004] 3. Risk of poor contact: Traditional programmable controllers lack reliable connection and fixing structures between modules, and are prone to displacement due to external vibration, impact and other factors, resulting in poor contact between modules and affecting the normal operation of the equipment.

[0005] Therefore, a new technical solution is urgently needed to address the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a programmable controller structure. It addresses the problems of difficult maintenance, inconvenient installation and maintenance, and poor contact caused by easy module displacement in existing programmable controllers. Through modular design, pluggable connection, reliable positioning and lightweight materials, it achieves the effects of convenient maintenance, flexible installation and stable connection, reduces the types of parts, reduces inventory costs, and improves assembly efficiency and application flexibility.

[0007] The above objectives are achieved through the following technical solutions: A programmable logic controller (PLC) structure includes a power supply module, a CPU module, at least one set of IT modules, a power supply base, an IT base, at least two bases, and a base plate. The power supply module is detachably connected to the power supply base via a connector, and the CPU module and each of the IT modules are detachably connected to the IT base via connectors. The power supply base, the IT base, and the two bases are sequentially connected end-to-end via connectors, and the power supply base and adjacent bases, as well as the IT base and adjacent bases, are positioned by a positioning groove and a positioning boss. The base plate is an extruded aluminum alloy part and is fixed to a cabinet with screws. The power supply module, CPU module, IT module, power supply base, IT base, and bases are all fixedly connected to the base plate with screws, and the base plate provides a fixed foundation for all modules and bases.

[0008] Furthermore, the power module includes a power flip cover, the CPU module includes a CPU flip cover, and the IT module includes an IT flip cover; the power flip cover, CPU flip cover, and IT flip cover have the same and universal structure, and each flip cover is provided with a rotating shaft surrounded by a ring of latches, the rotating shaft cooperating with the flip cover mounting hole of the corresponding module cover; each flip cover has a protrusion at the two cantilever ends, the protrusion cooperating with the slot of the corresponding module cover, so that each flip cover can be locked at positions of 95°, 130°, and 182° respectively; when the power flip cover is locked, the underlying DIP switch and terminals are exposed, and when the CPU flip cover is locked, the underlying battery compartment and memory card are exposed.

[0009] Furthermore, the power module also includes a power supply top cover and a power supply bottom cover, the CPU module also includes a CPU top cover and a CPU bottom cover, and the IT module also includes an IT top cover and an IT bottom cover; the top and bottom covers of each module are detachably connected by four clips; each top and bottom cover has a guide groove inside to guide the installation of the corresponding circuit board (power board, CPU board, IT board); each top and bottom cover has heat dissipation holes for heat dissipation of the corresponding module; each bottom cover has an installation guide at the bottom to guide the insertion and removal of the corresponding module from the base (power base, IT base), and each bottom cover has a screw mounting groove at the bottom for installing positioning screws to fix the corresponding module.

[0010] Furthermore, the power module also includes a power board, a diode heat sink, and a MOS heat sink; the power board contains a MOS transistor, an output diode, and a power board grounding spring, which directly contacts the base plate to ground the power board; the diode heat sink is in close contact with the output diode, and the MOS heat sink is in close contact with the MOS transistor, and both the diode heat sink and the MOS heat sink are fixedly connected to the power board by screws and supported by nylon posts and nylon screws; the power board is connected to the power board connector on the power base substrate via power board connector one, realizing the connection between the power module and the power base.

[0011] Furthermore, the CPU module also includes a CPU left plate, a CPU right plate, a CPU base plate, a battery compartment, and a battery compartment cover; the CPU top cover has a battery compartment receiving hole, the battery compartment is disposed in the battery compartment receiving hole, and the battery compartment has a battery compartment handle; the battery compartment cover is connected to the CPU top cover via a rotating shaft, can rotate along the rotating shaft, and is fixed by a snap-fit; when the battery compartment cover is fastened, it presses against the battery compartment handle to fix the battery compartment; both the CPU left plate and the CPU right plate are provided with a CPU board connector one, and the CPU base plate is provided with a CPU board connector two; the CPU board connector one of the CPU left plate is connected to the CPU board connector two of the CPU base plate, and the CPU board connector one of the CPU right plate is connected to the CPU board connector two of the CPU base plate, realizing the conductivity between the CPU left plate, the CPU right plate, and the CPU base plate; the CPU left plate is also provided with a CPU board connector three, and the IT base plate of the IT base is provided with a CPU board connector four; the CPU board connector three is connected to the CPU board connector four, realizing the conductivity between the CPU module and the IT base plate.

[0012] Furthermore, the power base and the IT base have the same structure, both including a base upper cover, a base lower cover, a substrate (power substrate, IT substrate), a top buckle, and a spring; the base upper cover and the base lower cover are detachably connected by snap-fits around the perimeter, the base upper cover has an upper support post for the substrate inside, the base lower cover has a lower support post for the substrate inside and a substrate positioning post, and the substrate is fixed between the base upper cover and the base lower cover by the upper support post for the substrate, the lower support post for the substrate, and the substrate positioning post; The base cover is provided with a top buckle slide, and the top buckle is slidably disposed in the top buckle slide. The spring is disposed between the top buckle and the inner wall of the top buckle slide, so that the top buckle can extend and retract within the top buckle slide. During installation, the end of the base with the top buckle is inserted obliquely into the slot of the base plate, and the base is pushed to compress the spring of the top buckle and retract into the top buckle slide until the other end of the base is engaged with the slot of the base plate. During disassembly, the side of the base with the installation guide is pushed to retract the top buckle into the top buckle slide, and the base can be removed by lifting it upward.

[0013] Furthermore, the CPU left plate is provided with a CPU board grounding copper strip, the IT board of the IT module is provided with an IT board grounding copper strip, and the IT base plate of the IT base is provided with a grounding spring; the upper cover of the IT base is provided with an upper grounding hole, and the lower cover of the IT base is provided with a lower grounding hole; the CPU board grounding copper strip contacts the grounding spring on the upper side of the IT base plate through the upper grounding hole, the IT board grounding copper strip contacts the grounding spring on the upper side of the IT base plate through the upper grounding hole, and the grounding spring on the lower side of the IT base plate contacts the base plate through the lower grounding hole, thereby realizing the grounding of the CPU module and the IT module.

[0014] Furthermore, the lower cover of the base is provided with a removable plastic shell portion, which can be removed from the corresponding side according to the installation position of the base; the base substrate is provided with a terminating resistor, and when the base is connected with the power base and the IT base, the terminating resistor of the substrate serves both as a sealing function and as a protection for the power base and the IT base.

[0015] Furthermore, the power module, CPU module, IT module, power base, IT base and base housing are all made of PC+10GF material to reduce the overall weight of the equipment and reduce the fitting error between the injection molded parts and the metal parts.

[0016] Furthermore, the base plate is provided with screw fixing slots and mounting holes. The screw fixing slots are used to install and fix screws for each module and base, and the mounting holes are used to fix the base plate to the cabinet. The length of the base plate can be customized according to the number of power modules, CPU modules and IT modules to adapt to different installation requirements.

[0017] This utility model provides a programmable controller structure that uses PC+10GF material to reduce equipment weight and minimize fitting errors. The retractable top clip and pluggable design facilitate disassembly and maintenance. Positioning slots and bosses ensure accurate connection of each component. The base terminating resistor and module enclosed structure protect internal components. Furthermore, the universal flip cover and common plastic base shell reduce costs. This effectively solves the problems of difficult maintenance, inconvenient installation, and poor contact in existing programmable controllers. Compared with existing technologies, the specific beneficial effects are as follows: 1. Lightweight design: The power module, CPU module, IT module, power base, IT base and base shell are all made of PC+10GF material, replacing the traditional metal material, which greatly reduces the overall weight of the equipment, while reducing the fit error between injection molded parts and metal parts and improving assembly accuracy.

[0018] 2. Easy disassembly and assembly: The power base and IT base are quickly disassembled and assembled by the retractable top clip and the slot of the base plate; the power module, CPU module and IT module are connected to the corresponding base (power base and IT base) through connectors and are positioned by screws. The plugging and unplugging operation is simple. During maintenance, the faulty module can be disassembled individually without the need for overall disassembly.

[0019] 3. Accurate positioning: The power base, IT base, and bases are connected by positioning grooves and positioning bosses to ensure positioning accuracy during connection and avoid poor contact caused by module displacement; the upper and lower covers of each module are connected by snap-fit, and the circuit boards are assembled by guide grooves, further improving assembly accuracy.

[0020] 4. Reliable protection: The base plate is equipped with terminating resistors, which not only seal the ends but also protect the power supply plate and IT plate; the upper and lower covers of each module form a closed structure to protect the internal circuit boards from external impurities and impacts; the grounding structure (grounding springs, grounding copper bars) ensures safe grounding of the equipment and reduces electromagnetic interference.

[0021] 5. Cost optimization: The CPU flip cover of the CPU module is the same as the power flip cover of the power module, and the base on both sides shares a set of plastic shells, reducing the number of molds and lowering mold opening costs; the base plate can be customized according to the number of modules, improving equipment versatility and reducing customization costs. Attached Figure Description

[0022] Figure 1 This is an exploded view of the power module in the programmable controller structure described in this utility model; Figure 2 This is an exploded view of the CPU module in the programmable controller structure described in this utility model; Figure 3 This is an exploded view of the IT module in the programmable controller structure described in this utility model; Figure 4 This is an exploded view of the power supply base in the programmable controller structure described in this utility model; Figure 5 This is an exploded view of the IT base in the programmable controller structure described in this utility model; Figure 6 This is an exploded view of the base in the programmable controller structure described in this utility model; Figure 7 This is a schematic diagram of the base plate in the programmable controller structure described in this utility model; Figure 8 This is an assembly drawing of the programmable controller structure described in this utility model; Figure 9 This is an assembly diagram of the programmable controller structure described in this utility model; Figure 10 This is a schematic diagram of the installation of the power supply base in the programmable controller structure described in this utility model; Figure 11 This is a schematic diagram of the connection of the base in the programmable controller structure described in this utility model; Figure 12 This is a schematic diagram of the power supply flip cover in the programmable controller structure described in this utility model; Figure 13 This is a schematic diagram of the power supply housing in the programmable controller structure described in this utility model; Figure 14 This is a schematic diagram of the power supply board in the programmable controller structure described in this utility model; Figure 15 This is a schematic diagram of the installation of the CPU board in the programmable controller structure described in this utility model; Figure 16 This is a schematic diagram of the upper cover of the power supply base in the programmable controller structure described in this utility model; Figure 17 This is a schematic diagram of the lower cover of the power supply base in the programmable controller structure described in this utility model; Figure 18 This is a schematic diagram of the upper cover of the IT base in the programmable controller structure described in this utility model; Figure 19 This is a schematic diagram of the lower cover of the IT base in the programmable controller structure described in this utility model.

[0023] Illustration markings: 1-Power supply flip cover, 101-Positioning boss, 102-Flip cover mounting shaft, 103-Protrusion, 104-Flip cover handle, 105-Fixing hole; 2-Power supply cover, 201-Fixing boss, 202-Cover buckle, 203-Flip cover mounting hole, 204-Positioning groove; 3-Power supply bottom cover, 301-Bottom cover clip, 302-Screw mounting slot, 303-Installation guide, 304-Guide slot; 4-Power board, 401-Power board grounding spring, 402-Power board connector 1; 5-Diode heat sink; 6-MOS heatsink; 7-CPU left board, 701-CPU board connector 1, 702-CPU board connector 3, 703-CPU board grounding copper strip; 8-CPU right panel; 9-CPU baseboard, 901-CPU board connector 2; 10-CPU flip cover; 11- Battery compartment flip cover; 12-Battery compartment, 1201-Battery compartment handle; 13-CPU top cover, 1301-Battery compartment receiving hole; 14-CPU bottom cover; Grounding copper strips for 15-IT board and 1501-IT board; 16-IT Flip Phone; 17-IT top cover; 18-IT bottom cover; 19-Power base cover, 1901-Power base buckle, 1902-Power base support post; 20-Power supply board, 2001-Power board connector 2, 2002-Board connector 1, 2003-Board connector 2; 21-Spring; 22-Top buckle; 23-Lower cover of power base, 2301-Lower buckle of power base, 2302-Lower support column of power board, 2303-Installation guide, 2304-Positioning column of power board, 2305-Top buckle slide, 2306-Base positioning groove, 2307-Base positioning boss; 24-IT base cover, 2401-IT base cover buckle, 2402-IT substrate support post, 2403-top grounding hole; 25-IT board, 2501-CPU board connector 4, 2502-Grounding spring; 26-IT base lower cover, 2601-IT base lower cover buckle, 2602-installation guide, 2603-IT substrate lower support post, 2604-lower grounding hole, 2605-IT substrate positioning post, 2606-top buckle slide; 27-Base cover; 28-Substrate; 29-Base lower cover, 2901-Removable plastic shell part; 30-Base plate, 3001-Screw fixing slot, 3002-Card slot, 3003-Mounting hole; 31-Power supply module; 32-CPU module; 33-IT module; 34-Power supply base; 34-IT base station; 35 - Base. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] like Figure 8 and Figure 9 As shown, this solution provides a programmable controller structure, including a power supply module 31, a CPU module 32, at least one set of IT modules 33, a power supply base 34, an IT base 35, at least two bases 36, and a base plate 30. One set of the power supply module 31 and CPU module 32 can be used in conjunction with multiple sets of IT modules 33. The specific structure and connection relationship of each component are as follows: like Figure 1 , Figure 12 , Figure 13 and Figure 14 As shown, the power module 31 in this embodiment includes a power flip cover 1, a power upper cover 2, a power lower cover 3, a power board 4, a diode heat sink 5, and a MOS heat sink 6, specifically: Power supply flip cover 1: It is provided with a positioning boss 101, a flip cover mounting shaft 102, a protrusion 103, a flip cover handle 104, and a fixing hole 105. The flip cover mounting shaft 102 cooperates with the flip cover mounting hole 203 of the power supply top cover 2, so that the power supply flip cover 1 can rotate along the flip cover mounting shaft 102; the positioning boss 101 cooperates with the positioning groove 204 of the power supply top cover 2, and combined with the increased friction of the protrusion 103, the power supply flip cover 1 can be locked at the positions of 95°, 130° and 182° respectively. When locked, the dial switch and terminals below are exposed, which facilitates human-machine interaction; the flip cover handle 104 adopts a specific angle design to improve operating comfort; the fixing hole 105 cooperates with the fixing boss 201 of the power supply top cover 2 to fix the power supply flip cover 1.

[0026] The power supply top cover 2 and the power supply bottom cover 3 are detachably connected by a top cover buckle 202 (located on the power supply top cover 2) and a bottom cover buckle 301 (located on the power supply bottom cover 3), which together protect the power board 4. Both the power supply top cover 2 and the power supply bottom cover 3 are provided with heat dissipation holes for heat dissipation of the power module 31. Both are provided with guide grooves 304 (located on the power supply bottom cover 3) inside to guide the assembly of the power board 4. The power supply bottom cover 3 is also provided with a screw mounting groove 302 and an installation guide 303. The screw mounting groove 302 is used to install screws to fix the power module 31 on the base plate 30. The installation guide 303 is used to guide the insertion and removal of the power module 31 and the power base 34.

[0027] Power board 4: Internally equipped with MOSFETs, output diodes and power board grounding spring 401. The power board grounding spring 401 is in direct contact with the base plate 30 to achieve grounding of the power board 4. The power board 4 is also equipped with a power board connector 1 402, which is connected to the power board connector 2001 on the power board substrate 20 of the power base 34 to achieve conduction between the power module 31 and the power base 34.

[0028] Diode heat sink 5 and MOS heat sink 6: The diode heat sink 5 is in close contact with the output diode of the power board 4, and the MOS heat sink 6 is in close contact with the MOS transistor of the power board 4. Both are fixedly connected to the power board 4 by screws and supported by nylon pillars and nylon screws to achieve efficient heat dissipation.

[0029] like Figure 2 and Figure 15 As shown, the CPU module 32 in this embodiment includes a CPU flip cover 10, a CPU upper cover 13, a CPU lower cover 14, a CPU left plate 7, a CPU right plate 8, a CPU base plate 9, a battery compartment 12, and a battery compartment flip cover 11. Its structure is similar to that of the power module 31 in some components and its principle is similar. Specifically: CPU flip cover 10, CPU top cover 13 and CPU bottom cover 14: The CPU flip cover 10 has the same structure and is universal to the power flip cover 1 of the power module 31. Its rotation positioning method and connection method with the CPU top cover 13 are the same as those of the power flip cover 1. The CPU top cover 13 and CPU bottom cover 14 are detachably connected by four buckles. They are provided with guide grooves inside to guide the assembly of the CPU board (CPU left board 7, CPU right board 8, CPU bottom board 9). Both are provided with heat dissipation holes. The CPU top cover 13 is provided with a battery compartment receiving hole 1301 to accommodate the battery compartment 12.

[0030] Battery compartment 12 and battery compartment cover 11: The battery compartment 12 is provided with a battery compartment handle 1201, through which a person can insert the battery compartment 12 into the battery compartment receiving hole 1301; The battery compartment cover 11 is connected to the CPU top cover 13 by a rotating shaft, can rotate along the rotating shaft and be fixed by a buckle, and when fastened, it presses against the battery compartment handle 1201 to achieve a firm fixation of the battery compartment 12.

[0031] CPU left board 7, CPU right board 8, and CPU base plate 9: Both CPU left board 7 and CPU right board 8 are equipped with CPU board connector 1 701, and CPU base plate 9 is equipped with CPU board connector 2 901; CPU board connector 1 701 of CPU left board 7 is connected to CPU board connector 2 901 of CPU base plate 9, and CPU board connector 1 701 of CPU right board 8 is connected to CPU board connector 2 901 of CPU base plate 9, realizing the conductivity between CPU left board 7, CPU right board 8, and CPU base plate 9; CPU left board 7 is also equipped with CPU board connector 3 702 and CPU board grounding copper strip 703, CPU board connector 3 702 is connected to CPU board connector 4 2501 on IT substrate 25 of IT base 35, realizing the conductivity between CPU module 32 and IT substrate 25; CPU board grounding copper strip 703 is used for grounding CPU module 32.

[0032] like Figure 3 As shown, the IT module 33 in this embodiment includes an IT flip cover 16, an IT upper cover 17, an IT lower cover 18, and an IT board 15. Its structure is similar to that of the power module 31, specifically: IT Flip Cover 16, IT Top Cover 17 and IT Bottom Cover 18: The structure of the IT Flip Cover 16 is the same as that of the power flip cover 1 of the power module 31. It can rotate along the rotation axis of the IT Top Cover 17 and is locked at 95°, 130° and 182°. The IT Top Cover 17 and IT Bottom Cover 18 are detachably connected by four buckles and have guide grooves inside to guide the assembly of the IT board 15.

[0033] IT board 15: It is provided with an IT board grounding copper strip 1501, which is used to ground the IT module 33; the IT board 15 is also provided with a connector, which is used to connect to the IT base plate 25 of the IT base 35 to realize the conduction between the IT module 33 and the IT base 35.

[0034] like Figure 4 , Figure 10 , Figure 16 and Figure 17 As shown, the power base 34 in this embodiment includes a power base upper cover 19, a power base lower cover 23, a power base substrate 20, a top buckle 22, and a spring 21, specifically: The upper cover 19 and the lower cover 23 of the power base are detachably connected by an upper buckle 1901 (located on the upper cover 19) and a lower buckle 2301 (located on the lower cover 23). The upper cover 19 contains an upper support post 1902 for the power substrate, and the lower cover 23 contains a lower support post 2302 and a positioning post 2304 for the power substrate. These three components together secure the power substrate 20. Between the upper cover 19 and the lower cover 23 of the power base; the lower cover 23 of the power base is also provided with an installation guide 2303, a top latch slide 2305 and a base positioning groove 2306. The installation guide 2303 guides the insertion and removal of the power module 31; the top latch slide 2305 is used to accommodate the top latch 22 and the spring 21; the base positioning groove 2306 cooperates with the base positioning boss 2307 of the adjacent base 36 to realize the positioning of the power base 34 and the base 36.

[0035] Power supply base 20: It is provided with power board connector 2001, base board connector 2002 and base board connector 2003; the power board connector 2001 is connected to the power board connector 402 of the power module 31; the base board connector 2002 is connected to the base board connector of the adjacent base 36, and the base board connector 2003 is connected to the base board connector of the IT base 35, so as to realize the conduction between the power base 34 and the base 36 and the IT base 35.

[0036] Top buckle 22 and spring 21: The top buckle 22 is slidably disposed within the top buckle slide 2305, and the spring 21 is disposed between the top buckle 22 and the inner wall of the top buckle slide 2305, so that the top buckle 22 can extend and retract within the top buckle slide 2305; When installing the power base 34, insert the end with the top buckle 22 obliquely into the slot 3002 of the base plate 30, push the power base 34 to compress the spring 21 and retract the top buckle slide 2305 until the other end of the power base 34 is engaged in the slot 3002 of the base plate 30; When disassembling, push the side of the power base 34 with the installation guide 2303 to retract the top buckle 22 into the top buckle slide 2305, and lift it up to remove the power base 34.

[0037] like Figure 5 , Figure 18 and Figure 19 As shown, the structure of the IT base 35 in this embodiment is the same as that of the power base 34, including an IT base upper cover 24, an IT base lower cover 26, an IT substrate 25, a top clip 22, and a spring 21, specifically: The IT base upper cover 24 and IT base lower cover 26 are detachably connected by an IT base upper cover buckle 2401 (located on the IT base upper cover 24) and an IT base lower cover buckle 2601 (located on the IT base lower cover 26). The IT base upper cover 24 is provided with an IT substrate upper support post 2402 and an upper grounding hole 2403 inside. The IT base lower cover 26 is provided with an IT substrate lower support post 2603, an IT substrate positioning post 2605 and a lower grounding hole 2604 inside. The IT substrate 25 is fixed by the IT substrate upper support post 2402, the IT substrate lower support post 2603 and the IT substrate positioning post 2605. The upper grounding hole 2403 and the lower grounding hole 2604 are used for grounding structure conduction.

[0038] IT substrate 25: It is provided with CPU board connector 4 2501, grounding spring 2502 and two substrate connectors; the CPU board connector 4 2501 is connected to the CPU board connector 3 702 of the CPU module 32; the grounding spring 2502 is divided into upper and lower sides, the upper grounding spring contacts the CPU board grounding copper strip 703 of the CPU module 32 and the IT board grounding copper strip 1501 of the IT module 33 through the upper grounding hole 2403, and the lower grounding spring contacts the base plate 30 through the lower grounding hole 2604; the two substrate connectors are respectively connected to the substrate connector 2 2003 of the power base 34 and the substrate connector of the adjacent base 36, realizing the conduction between the IT base 35 and the power base 34 and the base 36.

[0039] like Figure 6 and 11 As shown, in this embodiment, the base 36 includes an upper base cover 27, a lower base cover 29, and a base plate 28. Its structure is similar to that of the power supply base 34, specifically: The upper base cover 27 and the lower base cover 29 are detachably connected by snap-fits around the perimeter. They are equipped with support columns and positioning columns inside to fix the base plate 28. The lower base cover 29 is provided with a removable plastic shell portion 2901. The removable plastic shell portion 2901 on the corresponding side can be removed according to the installation position of the base 36 (left or right), which improves the installation flexibility.

[0040] Substrate 28: It is provided with terminating resistors and connectors. The connectors are connected to the substrate connectors of the power base 34 or IT base 35. The terminating resistors not only block the ends of the power base 34 or IT base 35, but also protect the power substrate 20 and IT substrate 25 to prevent external impurities or interference from affecting the normal operation of the substrates.

[0041] like Figure 7 As shown, in this embodiment, the base plate 30 is an aluminum alloy extrusion part, and is provided with a screw fixing groove 3001, a slot 3002 and a mounting hole 3003, specifically: Screw fixing slot 3001: Used to install screws to fix the power module 31, CPU module 32, IT module 33, power base 34, IT base 35 and base 36 to the base plate 30.

[0042] Card slot 3002: It cooperates with the top clip 22 of the power base 34 and IT base 35 to realize quick installation and removal of the base on the base plate 30.

[0043] Mounting hole 3003: used to fix the base plate 30 to the rack with screws; the length of the base plate 30 can be customized according to the number of power modules 31, CPU modules 32 and IT modules 33 to adapt to the installation requirements of different numbers of modules.

[0044] In this embodiment, the power module 31 is connected to the power board connector 2001 of the power base 34 via power board connector 402, the CPU module 32 is connected to the CPU board connector 2501 of the IT base 35 via CPU board connector 702, and the IT module 33 is connected to the IT substrate 25 of the IT base 35 via its own connector. The power base 34 is connected to the substrate 28 of the left base 36 via substrate connector 2002 and to the IT base 35 via substrate connector 2003. The IT base 35 is connected to the substrate 28 of the right base 36 via substrate connector. All modules and bases are fixed to the base plate 30 with screws, forming a complete programmable controller structure.

[0045] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A programmable controller structure, characterized in that, The system includes a power module (31), a CPU module (32), at least one set of IT modules (33), a power base (34), an IT base (34), at least two bases (36), and a base plate (30). The power module (31) and the power base (34) are detachably connected via connectors, and the CPU module (32) and each of the IT modules (33) are detachably connected to the IT base (34) via connectors. The power base (34), the IT base (36), and the base plate (30) are detachably connected via connectors. The two bases (36) are connected end to end by connectors, and the power base (34) and the adjacent base (36) and the IT base (34) and the adjacent base (36) are positioned by positioning grooves and positioning bosses; the power module (31), CPU module (32), IT module (33), power base (34), IT base (34) and base (36) are all fixedly connected to the base plate (30), and the base plate (30) provides a fixed foundation for all modules and bases.

2. The programmable controller structure according to claim 1, characterized in that, The power module (31) includes a power flip cover (1), the CPU module (32) includes a CPU flip cover (10), and the IT module (33) includes an IT flip cover (16). The power flip cover (1), CPU flip cover (10), and IT flip cover (16) have the same and universal structure. Each flip cover is provided with a rotating shaft surrounded by a ring of latches. The rotating shaft cooperates with the flip cover mounting hole of the corresponding module cover. Each flip cover has a protrusion at the two cantilever ends. The protrusion cooperates with the slot of the corresponding module cover, so that each flip cover can be locked at the positions of 95°, 130°, and 182° respectively. When the power flip cover (1) is locked, the lower DIP switch and terminals are exposed. When the CPU flip cover (10) is locked, the lower battery compartment (12) and memory card are exposed.

3. The programmable controller structure according to claim 2, characterized in that, The power module (31) also includes a power supply top cover (2) and a power supply bottom cover (3), the CPU module (32) also includes a CPU top cover (13) and a CPU bottom cover (14), and the IT module (33) also includes an IT top cover (17) and an IT bottom cover (18). The top and bottom covers of each module are detachably connected by four buckles. Each top and bottom cover has a guide groove inside to guide the installation of the corresponding circuit board. Each top and bottom cover has a heat dissipation hole for heat dissipation of the corresponding module. Each bottom cover has an installation guide at the bottom to guide the insertion and removal of the corresponding module from the base (35), and each bottom cover has a screw mounting groove at the bottom to install positioning screws to fix the corresponding module.

4. The programmable controller structure according to claim 3, characterized in that, The power module (31) also includes a power board (4), a diode heat sink (5), and a MOS heat sink (6); the power board (4) is provided with a MOS transistor, an output diode, and a power board grounding spring (401). The power board grounding spring (401) is in direct contact with the base plate (30) to ground the power board (4); the diode heat sink (5) is in close contact with the output diode, and the MOS heat sink (6) is in close contact with the MOS transistor. Both the diode heat sink (5) and the MOS heat sink (6) are fixedly connected to the power board (4) by screws and supported by nylon pillars and nylon screws; the power board (4) is connected to the power board connector (2001) on the power board substrate (20) of the power base (34) through the power board connector one (402) to realize the conduction between the power module (31) and the power base (34).

5. The programmable controller structure according to claim 3, characterized in that, The CPU module (32) also includes a CPU left plate (7), a CPU right plate (8), a CPU base plate (9), a battery compartment (12), and a battery compartment cover (11); the CPU top cover (13) is provided with a battery compartment receiving hole (1301), the battery compartment (12) is located in the battery compartment receiving hole (1301), and the battery compartment (12) is provided with a battery compartment handle (1201); the battery compartment cover (11) is connected to the CPU top cover (13) through a rotating shaft, can rotate along the rotating shaft and be fixed by a snap-fit, and when the battery compartment cover (11) is fastened, it presses against the battery compartment handle (1201) to fix the battery compartment (12); both the CPU left plate (7) and the CPU right plate (8) are provided with a CPU board connector (701), and the CPU base plate (9) The CPU board connector 2 (901) is provided on the CPU left board (7), the CPU board connector 1 (701) of the CPU left board (7) is connected to the CPU board connector 2 (901) of the CPU base plate (9), and the CPU board connector 1 (701) of the CPU right board (8) is connected to the CPU board connector 2 (901) of the CPU base plate (9), so as to realize the conduction of the CPU left board (7), the CPU right board (8) and the CPU base plate (9); the CPU left board (7) is also provided with a CPU board connector 3 (702), and the IT base plate (25) of the IT base (34) is provided with a CPU board connector 4 (2501), the CPU board connector 3 (702) is connected to the CPU board connector 4 (2501), so as to realize the conduction of the CPU module (32) and the IT base plate (25).

6. The programmable controller structure according to claim 1, characterized in that, The power base (34) and the IT base (34) have the same structure, both including an upper base cover (27), a lower base cover (29), a substrate (28), a top buckle (22), and a spring (21); the upper base cover (27) and the lower base cover (29) are detachably connected by snap-fits around the perimeter; the upper base cover (27) has an upper substrate support post inside, and the lower base cover (29) has a lower substrate support post and a substrate positioning post inside; the substrate is fixed between the upper base cover (27) and the lower base cover by the upper substrate support post, the lower substrate support post, and the substrate positioning post; the lower base cover has a top buckle. The top buckle (22) is slidably disposed in the top buckle slide, and the spring (21) is disposed between the top buckle (22) and the inner wall of the top buckle slide, so that the top buckle (22) can extend and retract within the top buckle slide. During installation, the end of the base with the top buckle (22) is inserted obliquely into the slot (3002) of the base plate (30), and the base is pushed to compress the spring (21) and retract into the top buckle slide until the other end of the base is inserted into the slot (3002) of the base plate (30). During disassembly, the side of the base with the installation guide is pushed to retract the top buckle (22) into the top buckle slide, and the base can be removed by lifting it upward.

7. The programmable controller structure according to claim 6, characterized in that, The CPU left plate (7) is provided with a CPU board grounding copper strip (703), the IT board (15) of the IT module (33) is provided with an IT board grounding copper strip (1501), and the IT base (34) IT substrate (25) is provided with a grounding spring (2502); the upper cover (24) of the IT base (34) is provided with an upper grounding hole (2403), and the lower cover (26) of the IT base (34) is provided with a lower grounding hole (2604); the CPU board grounding copper strip ( 703) The grounding copper strip (1501) of the IT board is in contact with the grounding spring (2502) on the upper side of the IT board (25) through the upper grounding hole (2403), and the grounding spring (2502) on the lower side of the IT board (25) is in contact with the base plate (30) through the lower grounding hole (2604), thereby realizing the grounding of the CPU module (32) and the IT module (33).

8. The programmable controller structure according to claim 6, characterized in that, The lower cover (29) of the base (36) is provided with a removable plastic shell part (2901), and the removable plastic shell part (2901) on the corresponding side can be removed according to the installation position of the base (36); the base plate (28) of the base (36) is provided with a terminating resistor. When the base (36) is connected to the power base (34) and the IT base (34), the terminating resistor of the base plate (28) serves both as a sealing function and as a protection for the power base plate (20) and the IT base plate (25).

9. The programmable controller structure according to claim 1, characterized in that, The outer shells of the power module (31), CPU module (32), IT module (33), power base (34), IT base (34) and base (36) are all made of PC+10GF material to reduce the overall weight of the equipment and reduce the fitting error between the injection molded parts and the metal parts.

10. A programmable controller structure according to claim 1, characterized in that, The base plate (30) is provided with screw fixing groove (3001) and mounting hole (3003). The screw fixing groove (3001) is used to install and fix screws for each module and base. The mounting hole (3003) is used to fix the base plate (30) on the cabinet. The length of the base plate (30) can be customized according to the number of power module (31), CPU module (32) and IT module (33) to adapt to different installation requirements.

Images