A PLC controller compatible with multiple input voltages

Abstract

The present invention relates to the technical field of PLC controllers, and discloses a PLC controller compatible with multiple input voltages, including a box body, and further including an installation device, a blocking device and a heat dissipation device; an inner box is slidably connected to the inner wall of the box body, an installation plate is fixedly connected to the bottom of the box body, an installation groove is opened in the front part of the box body, a pressing block is slidably connected to the inner wall of the installation groove, a threaded rod is threadedly connected to the inner wall of the pressing block, a pressing plate is fixedly connected to the bottom of the pressing block, a copper plate is fixedly connected to the bottom of the pressing plate, a cutting plate is fixedly connected to the inner wall of the copper plate, and a clamping groove is opened in the inner wall of the installation groove; the installation device is arranged on the surface of the inner box, the blocking device is arranged on the inner wall of the inner box, and the heat dissipation device is arranged on the inner wall of the inner box. In the present invention, the controller can directly connect the wire to the controller without adding the operation of stripping the rubber skin, which is more convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of PLC controllers, and particularly to a PLC controller compatible with multiple input voltages. Background Art

[0002] A PLC controller compatible with multiple input voltages is a device that can adapt to different electrical systems. Its design can accept inputs within multiple different voltage ranges, and this flexibility makes the PLC more versatile and adaptable in industrial environments with different countries and different standards.

[0003] The patent with the application number CN202121435177.6 discloses a PLC controller. The PLC controller includes: a main unit, including a main unit housing and a main circuit board disposed within the main unit housing; and an expansion module, including an expansion housing and an expansion circuit board disposed within the expansion housing. The expansion housing is fixedly connected to the main unit housing, and the main circuit board and the expansion circuit board are connected by means of a male connector mating with a female connector. The technical solution of this patent aims to complete the communication between the main circuit board and the expansion circuit board by means of the male connector and the female connector cooperating with each other, so as to achieve the purpose of avoiding wiring, and further simplify the disassembly and assembly process of the main circuit board and the expansion circuit board. When connecting a single wire to this device and the existing controllers, it is necessary to cut the rubber coating at the wire connection to expose the internal copper wire, and then connect the copper wire to the connection port of the controller. The operation is troublesome and complex. Therefore, a PLC controller compatible with multiple input voltages is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a PLC controller compatible with multiple input voltages for the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a PLC controller compatible with multiple input voltages, including a box body, and further including an installation device, a blocking device and a heat dissipation device; an inner box is slidably connected to the inner wall of the box body, an installation plate is fixedly connected to the bottom of the box body, an installation groove is opened in the front part of the box body, a pressing block is slidably connected to the inner wall of the installation groove, a threaded rod is threadedly connected to the inner wall of the pressing block, a pressing plate is fixedly connected to the bottom of the pressing block, a copper plate is fixedly connected to the bottom of the pressing plate, a cutting plate is fixedly connected to the inner wall of the copper plate, and a clamping groove is opened in the inner wall of the installation groove; the installation device is arranged on the surface of the inner box, the blocking device is arranged on the inner wall of the inner box, and the heat dissipation device is arranged on the inner wall of the inner box; the surface of the cutting plate after moving is in contact with the inner wall of the clamping groove, and the surface of the threaded rod is rotatably connected to the inner wall of the box body. When wire connection is required, multiple wires are directly placed on the top of the corresponding clamping grooves, and then the threaded rod is rotated. The threaded rod will drive the pressing block to move downwards through the thread, the pressing block will drive the pressing plate to move downwards, the pressing plate will drive the copper plate to drive the cutting plate to move downwards and cut the rubber skin on the surface of the wire, and expose the copper wire in the wire and make it contact with the copper plate, so as to directly connect the wire to the controller without adding the operation of peeling the rubber skin, which is more convenient and fast.

[0006] Preferably, the installation device includes a fixing plate, a clamping plate, a handle, a limiting rod and a limiting disc. The fixing plate is fixedly connected to the surface of the inner box. The clamping plate is slidably connected to the inner wall of the fixing plate. The handle is fixedly connected to the top of the clamping plate. The limiting rod is fixedly connected to the bottom of the clamping plate. The limiting disc is fixedly connected to the bottom end of the limiting rod. The installation device further includes a moving plate, a push rod, a convex block, a support plate and a clamping plate. The moving plate is slidably connected to the inner wall of the fixing plate. The push rod is fixedly connected to the top of the moving plate. The convex block is fixedly connected to the surface of the push rod. The support plate is fixedly connected to the inner wall of the inner box. The number of the clamping plates is two, and the two clamping plates are rotatably connected to the inner wall of the support plate. The surface of the push rod is slidably connected to the inner walls of the fixing plate and the inner box. A spring is arranged above the space between the two clamping plates. The surfaces of the limiting disc and the limiting rod are in contact with the inner wall of the fixing plate. The surface of the limiting rod is sleeved with a spring, and the two ends of the spring are respectively in contact with the top of the limiting disc and the inner wall of the fixing plate. When the controller needs to be disassembled for maintenance, pull the handle upwards, so that the handle drives the clamping plate to move upwards. The clamping plate will drive the limiting rod and the limiting disc to move upwards. The upward movement of the limiting disc will compress the spring. When the clamping plate moves out of the mounting plate and then rotates to be parallel to the fixing plate, the clamping plate is limited on the top of the fixing plate. At this time, the spring will push the limiting disc to limit the clamping plate on the top of the fixing plate. At this time, the separation and disassembly between the mounting plate and the fixing plate can be realized, and the inner box can be removed from the box body, so as to facilitate the maintenance of the controller. At the same time, when the limiting disc moves upwards, it will drive the moving plate to move upwards. The moving plate will drive the push rod to move upwards. The push rod will drive the convex block to move upwards. The convex block moves upwards and moves between the two clamping plates and provides an arc surface to push the two clamping plates to rotate, so that the tops of the clamping plates are in contact with each other and compress the spring. At this time, the clamping plates will no longer fix the circuit board inside the inner box, so that the circuit board can be removed and repaired, and the reverse operation can realize the rapid installation of the circuit board, further improving the efficiency during the disassembly of the device.

[0007] Preferably, the blocking device includes a push plate and an inclined block. The push plate is fixedly connected to the front and rear sides of the push rod. The inclined block is fixedly connected to the top of the push plate. The surface of the push plate is in contact with the inner wall of the inner box. The blocking device further includes a baffle and an inclined plate. The baffle is slidably connected to the inner wall of the inner box. The inclined plate is fixedly connected to the bottom of the baffle. The bottom of the inclined plate is in contact with the top of the inclined block. An elastic member is arranged between the left side of the inclined plate and the inner wall of the inner box. When the push rod moves upwards, it will drive the push plate to move upwards. The push plate will drive the inclined block to move upwards. The inclined block will drive the inclined plate to move through the inclined surface. The inclined plate will drive the baffle to move, so that the heat dissipation holes on the baffle are misaligned with the heat dissipation holes on the inner box and the box body. Thus, when the controller is disassembled, the heat dissipation holes of the controller can be blocked by moving the baffle, preventing dust from entering the inner box from the outside after disassembly, or when not in use, closing the baffle can also effectively prevent dust from entering the device.

[0008] Preferably, the heat dissipation device includes a filter box, a clamping strip, an outer ventilation box, an inner ventilation box and a fan group. The filter box is slidably connected to the inner wall of the inner box. The clamping strips are fixedly connected to both sides of the filter box. The outer ventilation box is slidably connected to the inner wall of the filter box. The inner ventilation box is rotatably connected to the inner wall of the outer ventilation box. The fan group is installed on the inner wall of the inner ventilation box. The heat dissipation device further includes a scraper, a rotating rod, a guiding block, a clamping rod and a roller. The scraper is fixedly connected to both sides of the outer ventilation box. The rotating rod is rotatably connected to the inner wall of the outer ventilation box through a torsion spring. The guiding block is fixedly connected to the inner wall of the filter box. The clamping rod is slidably connected to the inner wall of the bottom of the inner ventilation box through a spring. The roller is rotatably connected to the inner wall of the outer ventilation box. The bottom of the clamping rod is in contact with the inner wall of the outer ventilation box. The surface of the roller is in contact with the inner wall of the filter box. The surface of the rotating rod is in contact with the surface of the guiding block. The side of the scraper away from the outer ventilation box is in contact with the inner wall of the filter box. The surface of the clamping strip is slidably connected to the inner wall of the inner box. When the controller is in use, the fan group will blow the outside air into the controller, so that the outside air and the inside air are replaced to cool and dissipate the heat of the controller. At this time, the filter box will block the dust in the outside air to prevent the dust from entering the controller. At the same time, the inner ventilation box is obliquely placed in the outer ventilation box. When the fan group rotates and blows, the fan group will generate a thrust on itself. This thrust will push the outer ventilation box to move. The movement of the outer ventilation box will drive the rotating rod to move. When the rotating rod moves to contact the guiding block, the guiding block will push the rotating rod to rotate. The rotating rod will push the inner ventilation box to rotate. The inner ventilation box will drive the clamping rod to compress the spring and move to another limiting groove. At this time, the inner ventilation box will rotate, so that the blowing direction of the fan group changes, and the fan group will drive the outer ventilation box to move in the opposite direction in reverse, so as to realize the reciprocating movement of the fan group to blow air left and right, further increasing the heat dissipation area and improving the heat dissipation effect. At the same time, the scraper on the outer ventilation box will scrape the dust on the inner wall of the filter box during the movement to prevent the dust from accumulating and affecting the ventilation effect of the filter box.

[0009] The present invention adopts the above technical solutions and can bring the following beneficial effects:

[0010] 1. For the PLC controller compatible with multiple input voltages, through the coordinated operation among the box body, the inner box, the mounting plate, the pressing block, the mounting groove, the threaded rod, the pressing plate, the copper plate, the cutting plate and the card slot, when connecting wires, directly place multiple wires on the top of the corresponding card slots, and then rotate the threaded rod. The threaded rod will drive the pressing block to move down through the thread. The pressing block will drive the pressing plate to move down. The pressing plate will drive the copper plate to drive the cutting plate to move down and cut the rubber skin on the surface of the wire, and expose the copper wire in the wire to contact the copper plate, so as to directly connect the wire to the controller without adding the operation of peeling the rubber skin, which is more convenient and fast.

[0011] 2. The PLC controller compatible with multiple input voltages, through the coordinated operation among the fixed plate, the clamping plate, the handle, the limiting rod, the limiting disc, the moving plate, the push rod, the bump, the support plate and the clamping plate. When the controller needs to be disassembled for maintenance and repair, pull the handle upward, so that the handle drives the clamping plate to move upward. The clamping plate will drive the limiting rod and the limiting disc to move upward. The upward movement of the limiting disc will compress the spring. When the clamping plate moves out of the mounting plate, rotate the clamping plate to be parallel to the fixed plate, so that the clamping plate is limited at the top of the fixed plate. At this time, the spring will push the limiting disc to limit the clamping plate at the top of the fixed plate. At this time, the separation and disassembly between the mounting plate and the fixed plate can be realized, and the inner box can be removed from the box body, thus facilitating the maintenance and repair of the controller.

[0012] 3. The PLC controller compatible with multiple input voltages, through the coordinated operation among the push plate, the inclined block, the baffle plate and the inclined plate. When the push rod moves upward, it will drive the push plate to move upward. The push plate will drive the inclined block to move upward. The inclined block will drive the inclined plate to move through the inclined surface. The inclined plate will drive the baffle plate to move, so that the heat dissipation holes on the baffle plate are misaligned with the heat dissipation holes on the inner box and the box body. Thus, when the controller is disassembled, the heat dissipation holes on the controller can be blocked by moving the baffle plate, preventing dust from entering the inner box from the outside after disassembly, or when not in use, closing the baffle plate can also effectively prevent dust from entering the device.

[0013] 4. The PLC controller compatible with multiple input voltages, through the coordinated operation among the filter box, the card strip, the outer ventilation box, the inner ventilation box, the fan group, the scraping plate, the rotating rod, the guiding block, the clamping rod and the roller. When the controller is in use, the fan group will blow the outside air into the controller, so that the outside air and the inside air are replaced to cool and dissipate heat for the controller. At the same time, the fan group can realize the reciprocating left-right blowing, further increasing the heat dissipation area and improving the heat dissipation effect. At the same time, the scraping plate on the outer ventilation box will scrape the dust on the inner wall of the filter box during the movement, preventing dust accumulation from affecting the ventilation effect of the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the pressing block structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the inner box structure of the present invention;

[0017] Figure 4 It is a schematic diagram of the fixed plate structure of the present invention;

[0018] Figure 5 It is a schematic diagram of the clamping plate structure of the present invention;

[0019] Figure 6 It is a schematic diagram of the baffle plate structure of the present invention;

[0020] Figure 7 This is a schematic structural diagram of the filter cartridge of the present invention;

[0021] Figure 8 This is a schematic structural diagram of the fan group of the present invention;

[0022] Figure 9 This is a schematic structural diagram of the clamping rod of the present invention.

[0023] In the figure: 1. Box body; 11. Inner box; 12. Mounting plate; 2. Pressing block; 21. Mounting groove; 22. Threaded rod; 23. Pressing plate; 24. Copper plate; 25. Cutting plate; 26. Card slot; 3. Mounting device; 31. Fixed plate; 32. Card plate; 33. Handle; 34. Limiting rod; 35. Limiting disc; 351. Moving plate; 352. Push rod; 353. Convex block; 354. Support plate; 355. Clamping plate; 4. Blocking device; 41. Push plate; 42. Inclined block; 421. Baffle; 422. Inclined plate; 5. Heat dissipation device; 51. Filter cartridge; 52. Card strip; 53. Outer ventilation box; 54. Inner ventilation box; 55. Fan group; 551. Scraper; 552. Rotating rod; 553. Guide block; 554. Clamping rod; 555. Roller. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 5, an embodiment of the present invention is: a PLC controller compatible with multiple input voltages, including a box body 1, and further including an installation device 3, a blocking device 4, and a heat dissipation device 5; an inner box 11 is slidably connected to the inner wall of the box body 1, a mounting plate 12 is fixedly connected to the bottom of the box body 1, an installation groove 21 is opened in the front part of the box body 1, a pressing block 2 is slidably connected to the inner wall of the installation groove 21, a threaded rod 22 is threadedly connected to the inner wall of the pressing block 2, a pressing plate 23 is fixedly connected to the bottom of the pressing block 2, a copper plate 24 is fixedly connected to the bottom of the pressing plate 23, a cutting plate 25 is fixedly connected to the inner wall of the copper plate 24, a clamping groove 26 is opened in the inner wall of the installation groove 21. When connecting wires, place multiple wires directly on the top of the corresponding clamping groove 26, and then rotate the threaded rod 22. The threaded rod 22 will drive the pressing block 2 to move downward through the thread, and the pressing block 2 will drive the pressing plate 23 to move downward; the installation device 3 is arranged on the surface of the inner box 11, the blocking device 4 is arranged on the inner wall of the inner box 11, and the heat dissipation device 5 is arranged on the inner wall of the inner box 11; the surface of the cutting plate 25 after moving is in contact with the inner wall of the clamping groove 26, the surface of the threaded rod 22 is rotatably connected to the inner wall of the box body 1, the pressing plate 23 will provide the copper plate 24 to drive the cutting plate 25 to move downward and cut the rubber skin on the surface of the wire, and expose the copper wire in the wire and make it contact with the copper plate 24, so as to directly connect the wire to the controller without adding the operation of peeling the rubber skin, which is more convenient and fast.

[0026] The installation device 3 includes a fixing plate 31, a clamping plate 32, a handle 33, a limiting rod 34 and a limiting disc 35. The fixing plate 31 is fixedly connected to the surface of the inner box 11. The clamping plate 32 is slidably connected to the inner wall of the fixing plate 31. The handle 33 is fixedly connected to the top of the clamping plate 32. The limiting rod 34 is fixedly connected to the bottom of the clamping plate 32. The limiting disc 35 is fixedly connected to the bottom end of the limiting rod 34. When the controller needs to be disassembled for maintenance and repair, pull the handle 33 upwards, so that the handle 33 drives the clamping plate 32 to move upwards. The clamping plate 32 will drive the limiting rod 34 and the limiting disc 35 to move upwards. The upward movement of the limiting disc 35 will compress the spring. When the clamping plate 32 moves out of the mounting plate 12, rotate the clamping plate 32 to be parallel to the fixing plate 31, so that the clamping plate 32 is limited at the top of the fixing plate 31. At this time, the spring will push the limiting disc 35 to limit the clamping plate 32 at the top of the fixing plate 31. At this time, the separation and disassembly between the mounting plate 12 and the fixing plate 31 can be realized, and the inner box 11 can be removed from the box body 1, so as to facilitate the maintenance and repair of the controller. The installation device 3 further includes a moving plate 351, a push rod 352, a convex block 353, a support plate 354 and a clamping plate 355. The moving plate 351 is slidably connected to the inner wall of the fixing plate 31. The push rod 352 is fixedly connected to the top of the moving plate 351. The convex block 353 is fixedly connected to the surface of the push rod 352. The support plate 354 is fixedly connected to the inner wall of the inner box 11. The number of the clamping plates 355 is two, and the two clamping plates 355 are rotatably connected to the inner wall of the support plate 354. The surface of the push rod 352 is slidably connected to the inner walls of the fixing plate 31 and the inner box 11. A spring is arranged above the space between the two clamping plates 355. The surfaces of the limiting disc 35 and the limiting rod 34 are in contact with the inner wall of the fixing plate 31. A spring is sleeved on the surface of the limiting rod 34, and the two ends of the spring are respectively in contact with the top of the limiting disc 35 and the inner wall of the fixing plate 31. When the limiting disc 35 moves upwards, it will drive the moving plate 351 to move upwards. The moving plate 351 will drive the push rod 352 to move upwards. The push rod 352 will drive the convex block 353 to move upwards. The convex block 353 moves upwards and moves between the two clamping plates 355 and provides an arc surface to push the two clamping plates 355 to rotate, so that the tops of the clamping plates 355 are in contact with each other and compress the spring. At this time, the clamping plates 355 will no longer fix the circuit board inside the inner box 11, so that the circuit board can be removed for repair, and the circuit board can be quickly installed by reverse operation, further improving the efficiency when the device is disassembled.

[0027] When the wire connection needs to be carried out in the working principle, directly place a plurality of wires on the top of the corresponding card slots 26, and then rotate the threaded rod 22. The threaded rod 22 will drive the pressing block 2 to move downwards through the thread. The pressing block 2 will drive the pressing plate 23 to move downwards. The pressing plate 23 will drive the copper plate 24 to drive the cutting plate 25 to move downwards and cut the rubber skin on the surface of the wire, and expose the copper wire in the wire and make it contact with the copper plate 24, so as to directly connect the wire to the controller without adding the operation of peeling the rubber skin, which is more convenient and fast.

[0028] When the controller needs to be disassembled for maintenance, pull the handle 33 upwards, so that the handle 33 drives the clamping plate 32 to move upwards. The clamping plate 32 will drive the limiting rod 34 and the limiting disc 35 to move upwards. When the limiting disc 35 moves upwards, it will compress the spring. When the clamping plate 32 moves out of the mounting plate 12, rotate the clamping plate 32 to be parallel to the fixing plate 31, so that the clamping plate 32 is limited at the top of the fixing plate 31. At this time, the spring will push the limiting disc 35 to limit the clamping plate 32 at the top of the fixing plate 31. At this time, the separation and disassembly between the mounting plate 12 and the fixing plate 31 can be realized, and the inner box 11 can be removed from the box body 1, so as to facilitate the maintenance of the controller. At the same time, when the limiting disc 35 moves upwards, it will drive the moving plate 351 to move upwards. The moving plate 351 will drive the push rod 352 to move upwards. The push rod 352 will drive the convex block 353 to move upwards. The convex block 353 moves upwards and moves between the two clamping plates 355 and provides an arc surface to push the two clamping plates 355 to rotate, so that the tops of the clamping plates 355 are in contact with each other and compress the spring. At this time, the clamping plates 355 will no longer fix the circuit board inside the inner box 11, so that the circuit board can be removed and repaired, and the reverse operation can realize the rapid installation of the circuit board, further improving the efficiency during the disassembly of the device.

[0029] Please refer to Figures 6 - 9 Based on the above embodiment, in another embodiment of the present invention, the blocking device 4 includes a push plate 41 and an inclined block 42. The push plate 41 is fixedly connected to the front and rear sides of the push rod 352. The inclined block 42 is fixedly connected to the top of the push plate 41. The surface of the push plate 41 is in contact with the inner wall of the inner box 11. When the push rod 352 moves upwards, it will drive the push plate 41 to move upwards. The push plate 41 will drive the inclined block 42 to move upwards. The inclined block 42 will drive the inclined plate 422 to move through the inclined surface. The inclined plate 422 will drive the baffle 421 to move. The blocking device 4 further includes a baffle 421 and an inclined plate 422. The baffle 421 is slidably connected to the inner wall of the inner box 11. The inclined plate 422 is fixedly connected to the bottom of the baffle 421. The bottom of the inclined plate 422 is in contact with the top of the inclined block 42. An elastic member is provided between the left side of the inclined plate 422 and the inner wall of the inner box 11. When the baffle 421 moves, the heat dissipation holes on the baffle 421 will be misaligned with the heat dissipation holes on the inner box 11 and the box body 1, so as to block the heat dissipation holes of the controller by moving the baffle 421 when the controller is disassembled, preventing dust from entering the inside of the inner box 11 from the outside after disassembly, or when not in use, closing the baffle 421 can also effectively prevent dust from entering the device.

[0030] The heat dissipation device 5 includes a filter box 51, a clamping strip 52, an outer ventilation box 53, an inner ventilation box 54 and a fan group 55. The filter box 51 is slidably connected to the inner wall of the inner box 11. The clamping strip 52 is fixedly connected to both sides of the filter box 51. The outer ventilation box 53 is slidably connected to the inner wall of the filter box 51. The inner ventilation box 54 is rotatably connected to the inner wall of the outer ventilation box 53. The fan group 55 is installed on the inner wall of the inner ventilation box 54. When the controller is in use, the fan group 55 will blow the outside air into the controller, so that the outside air and the inside air are replaced to cool and dissipate the heat of the controller. At this time, the filter box 51 will block the dust in the outside air to prevent the dust from entering the controller; The heat dissipation device 5 further includes a scraper 551, a rotating rod 552, a guiding block 553, a clamping rod 554 and a roller 555. The scraper 551 is fixedly connected to both sides of the outer ventilation box 53. The rotating rod 552 is rotatably connected to the inner wall of the outer ventilation box 53 through a torsion spring. The guiding block 553 is fixedly connected to the inner wall of the filter box 51. The clamping rod 554 is slidably connected to the inner wall of the bottom of the inner ventilation box 54 through a spring. The roller 555 is rotatably connected to the inner wall of the outer ventilation box 53; The bottom of the clamping rod 554 is in contact with the inner wall of the outer ventilation box 53. The surface of the roller 555 is in contact with the inner wall of the filter box 51. The surface of the rotating rod 552 is in contact with the surface of the guiding block 553. The side of the scraper 551 away from the outer ventilation box 53 is in contact with the inner wall of the filter box 51. The inner ventilation box 54 is inclined in the outer ventilation box 53. At this time, when the fan group 55 rotates and blows, the fan group 55 will generate a thrust on itself. This thrust will push the outer ventilation box 53 to move. The movement of the outer ventilation box 53 will drive the rotating rod 552 to move. When the rotating rod 552 moves to contact the guiding block 553, the guiding block 553 will push the rotating rod 552 to rotate. The rotating rod 552 will push the inner ventilation box 54 to rotate. The inner ventilation box 54 will drive the clamping rod 554 to compress the spring and move to another limiting groove. At this time, the inner ventilation box 54 will rotate, so that the blowing direction of the fan group 55 is changed, and the fan group 55 will drive the outer ventilation box 53 to move in the opposite direction in reverse, so as to realize the reciprocating blowing of the fan group 55 left and right, further increasing the heat dissipation area and improving the heat dissipation effect. At the same time, the scraper 551 on the outer ventilation box 53 will scrape the dust on the inner wall of the filter box 51 during the movement to prevent the dust from accumulating and affecting the ventilation effect of the filter box 51.

[0031] Working principle: when the push rod 352 moves upward, it will drive the push plate 41 to move upward. The push plate 41 will drive the inclined block 42 to move upward. The inclined block 42 will drive the inclined plate 422 to move through the inclined surface. The inclined plate 422 will drive the baffle 421 to move, so that the heat dissipation holes on the baffle 421 are misaligned with the heat dissipation holes on the inner box 11 and the box body 1. Thus, when the controller is disassembled, the heat dissipation holes on the controller are blocked by moving the baffle 421 to prevent dust from entering the inside of the inner box 11 from the outside after disassembly, or when not in use, closing the baffle 421 can also effectively prevent dust from entering the device.

[0032] When the controller is in use, the fan group 55 will function to blow the outside air into the controller, causing the replacement of the outside air and the inside air to cool and dissipate the heat of the controller. At this time, the filter box 51 will block the dust in the outside air to prevent the dust from entering the controller. At the same time, the inner ventilation box 54 is inclined in the outer ventilation box 53. When the fan group 55 rotates and blows, the fan group 55 will generate a thrust on itself. This thrust will push the outer ventilation box 53 to move. The movement of the outer ventilation box 53 will drive the rotating rod 552 to move. When the rotating rod 552 moves to contact the guide block 553, the guide block 553 will push the rotating rod 552 to rotate. The rotating rod 552 will push the inner ventilation box 54 to rotate. The inner ventilation box 54 will drive the clamping rod 554 to compress the spring and move to another limiting groove. At this time, the inner ventilation box 54 will rotate, causing the blowing direction of the fan group 55 to change, and the fan group 55 will drive the outer ventilation box 53 to move in the opposite direction in reverse, so as to realize the reciprocating blowing of the fan group 55 from left to right, further increasing the heat dissipation area and improving the heat dissipation effect. At the same time, the scraper 551 on the outer ventilation box 53 will scrape the dust on the inner wall of the filter box 51 during the movement to prevent the dust from accumulating and affecting the ventilation effect of the filter box 51.

[0033] The present invention provides a PLC controller compatible with multiple input voltages. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by the prior art.

Claims

1. A PLC controller compatible with multiple input voltages, including a box body (1), characterized in that: It also includes an installation device (3), a blocking device (4) and a heat dissipation device (5); An inner box (11) is slidably connected to the inner wall of the box body (1). An installation plate (12) is fixedly connected to the bottom of the box body (1). An installation groove (21) is formed in the front part of the box body (1). A pressing block (2) is slidably connected to the inner wall of the installation groove (21). A threaded rod (22) is threadedly connected to the inner wall of the pressing block (2). A pressing plate (23) is fixedly connected to the bottom of the pressing block (2). A copper plate (24) is fixedly connected to the bottom of the pressing plate (23). A cutting plate (25) is fixedly connected to the inner wall of the copper plate (24). A clamping groove (26) is formed in the inner wall of the installation groove (21); The installation device (3) is arranged on the surface of the inner box (11), the blocking device (4) is arranged on the inner wall of the inner box (11), and the heat dissipation device (5) is arranged on the inner wall of the inner box (11); The surface of the cutting plate (25) after moving is in contact with the inner wall of the clamping groove (26), and the surface of the threaded rod (22) is rotatably connected to the inner wall of the box body (1); The pressing plate (23) will provide the copper plate (24) to drive the cutting plate (25) to move downwards to cut the rubber skin on the surface of the wire, and expose the copper wire in the wire to contact the copper plate (24), so as to directly connect the wire to the controller; The installation device (3) includes a fixing plate (31), a clamping plate (32), a handle (33), a limiting rod (34) and a limiting disc (35). The fixing plate (31) is fixedly connected to the surface of the inner box (11). The clamping plate (32) is slidably connected to the inner wall of the fixing plate (31). The handle (33) is fixedly connected to the top of the clamping plate (32). The limiting rod (34) is fixedly connected to the bottom of the clamping plate (32). The limiting disc (35) is fixedly connected to the bottom end of the limiting rod (34); The installation device (3) further includes a moving plate (351), a push rod (352), a convex block (353), a support plate (354) and a clamping plate (355). The moving plate (351) is slidably connected to the inner wall of the fixing plate (31). The push rod (352) is fixedly connected to the top of the moving plate (351). The convex block (353) is fixedly connected to the surface of the push rod (352). The support plate (354) is fixedly connected to the inner wall of the inner box (11). The number of the clamping plates (355) is two, and the two clamping plates (355) are rotatably connected to the inner wall of the support plate (354); The surface of the push rod (352) is slidably connected to the inner walls of the fixing plate (31) and the inner box (11). A spring is arranged above the space between the two clamping plates (355). The surfaces of the limiting disc (35) and the limiting rod (34) are in contact with the inner wall of the fixing plate (31). A spring is sleeved on the surface of the limiting rod (34), and the two ends of the spring are respectively in contact with the top of the limiting disc (35) and the inner wall of the fixing plate (31).

2. The PLC controller compatible with multiple input voltages according to claim 1, characterized in that: The blocking device (4) includes a push plate (41) and an inclined block (42). The push plate (41) is fixedly connected to the front and rear sides of the push rod (352). The inclined block (42) is fixedly connected to the top of the push plate (41). The surface of the push plate (41) is in contact with the inner wall of the inner box (11).

3. The PLC controller compatible with multiple input voltages according to claim 2, wherein: The blocking device (4) further includes a baffle plate (421) and an inclined plate (422). The baffle plate (421) is slidably connected to the inner wall of the inner box (11). The inclined plate (422) is fixedly connected to the bottom of the baffle plate (421). The bottom of the inclined plate (422) is in contact with the top of the inclined block (42). An elastic member is provided between the left side of the inclined plate (422) and the inner wall of the inner box (11).

4. A PLC controller compatible with multiple input voltages according to claim 1, characterized in that: The heat dissipation device (5) includes a filter box (51), a clamping strip (52), an outer ventilation box (53), an inner ventilation box (54) and a fan group (55). The filter box (51) is slidably connected to the inner wall of the inner box (11). The clamping strip (52) is fixedly connected to both sides of the filter box (51). The outer ventilation box (53) is slidably connected to the inner wall of the filter box (51). The inner ventilation box (54) is rotatably connected to the inner wall of the outer ventilation box (53). The fan group (55) is installed on the inner wall of the inner ventilation box (54).

5. The PLC controller compatible with multiple input voltages according to claim 4, characterized in that: The heat dissipation device (5) further includes a scraping plate (551), a rotating rod (552), a guiding block (553), a clamping rod (554) and a roller (555). The scraping plate (551) is fixedly connected to both sides of the outer ventilation box (53). The rotating rod (552) is rotatably connected to the inner wall of the outer ventilation box (53) through a torsion spring. The guiding block (553) is fixedly connected to the inner wall of the filter box (51). The clamping rod (554) is slidably connected to the inner wall of the bottom of the inner ventilation box (54) through a spring. The roller (555) is rotatably connected to the inner wall of the outer ventilation box (53).

6. The PLC controller compatible with multiple input voltages according to claim 5, wherein: The bottom of the clamping rod (554) is in contact with the inner wall of the outer ventilation box (53). The surface of the roller (555) is in contact with the inner wall of the filter box (51). The surface of the rotating rod (552) is in contact with the surface of the guiding block (553). The side of the scraping plate (551) away from the outer ventilation box (53) is in contact with the inner wall of the filter box (51). The surface of the clamping strip (52) is slidably connected to the inner wall of the inner box (11).

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