Power line coupler anti-electromagnetic interference integrated device

Abstract

The invention belongs to the technical field of transmission, and particularly relates to an anti-electromagnetic interference integrated device for a power line coupler, which aims at solving the problems that the existing device is extremely inconvenient to mount and dismount and a gap exists between a shielding layer and the power line coupler, and is characterized in that the device comprises a mounting base, and a plurality of bearing plates are fixed at the top of the mounting base; through holes are formed in the multiple bearing plates, and the same shielding shell is placed at the tops of the multiple bearing plates; the power line coupler comprises a shielding shell and a power line coupler body, a containing cavity is formed in the shielding shell, first receding grooves are formed in the two ends of the shielding shell, and the containing cavity is communicated with the first receding grooves. The arc-shaped shielding cover, an insertion plate, a gasket and a sealing ring can easily complete sealing of the power line coupler through rotation of the arc-shaped shielding cover; the power line coupler is prevented from being interfered by external electromagnetic interference, and the shielding shell and the mounting base can be fixed through cooperation of the moving plate, the inserting rod and the through hole in the rotating process of the arc-shaped shielding cover.

Description

Technical Field

[0001] The present invention relates to the field of transmission technology, and in particular to an integrated device for preventing electromagnetic interference of a power line coupler. Background Art

[0002] Power line communication refers to the transmission of data signals through power lines used to transmit electricity. In the power line communication system, a power line coupler is required to couple the power line signal to the head-end device and other power line communication equipment. Carrier communication devices have a wide range of applications, such as power system monitoring, smart home systems, smart transportation systems, and outdoor mining systems. Power line couplers are generally composed of a housing, a coupling circuit board, a transformer, and a capacitor.

[0003] The power line coupler in the prior art still has the following shortcomings when used:

[0004] 1. To avoid electromagnetic interference, the shielding layer often needs to be fixed and connected by multiple bolts when installed. The fixing process is troublesome and it is inconvenient to disassemble later.

[0005] 2. There is a gap between the shielding layer and the power line coupler, resulting in unsatisfactory shielding effect.

[0006] In view of the above problems, the present invention document proposes an integrated device for preventing electromagnetic interference of a power line coupler. Summary of the invention

[0007] The purpose of the present invention is to solve the disadvantages of the existing extremely inconvenient installation and disassembly and the existence of a gap between the shielding layer and the power line coupler, and to propose an integrated device for electromagnetic interference protection of a power line coupler.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An integrated device for preventing electromagnetic interference of a power line coupler comprises a mounting base, a plurality of bearing plates are fixed on the top of the mounting base, through holes are arranged in the plurality of bearing plates, and a same shielding shell is placed on the top of the plurality of bearing plates;

[0010] It also includes a power line coupler, wherein a placement cavity is provided in the shielding shell, and first clearance grooves are provided at both ends of the shielding shell, and the placement cavity is connected to the first clearance grooves, and the power line coupler is placed in the placement cavity, and the first clearance groove is used to make way for the connecting line of the power line coupler;

[0011] It also includes an arc-shaped shielding cover, wherein a rotating cavity is provided in the shielding shell, and the arc-shaped shielding cover is sealed and slid in the rotating cavity to seal the top of the placement cavity;

[0012] Two sets of sealing structures are respectively arranged in the two first make way grooves and are used to seal the first make way grooves;

[0013] Two sets of positioning structures are both arranged in the placement cavity and are used to clamp and fix the power line coupler placed in the placement cavity;

[0014] The limiting structure is arranged on one side of the shielding shell and is used for positioning the arc-shaped shielding cover.

[0015] In a possible design, the sealing structure includes a plug plate that slidably cooperates with the first clearance groove, a gasket is provided in the first clearance groove, and the gasket is located at the bottom of the plug plate, the connecting line of the power line coupler passes through the gasket, and sealing rings are fixed on both sides of the gasket, one of the sealing rings is in contact with one side of the shielding shell, and one side of the other sealing ring is in contact with the inner wall of one side of the placement cavity, and the outer diameter of the sealing ring is larger than the inner diameter of the gasket, which is used to increase the sealing performance between the sealing ring, the gasket and the plug plate; the power line coupler is placed in the placement cavity, and the wiring at both ends of the power line coupler passes through the first clearance groove respectively, and then the sealing ring and the gasket are sleeved on the outer wall of the wiring, the gasket is located in the first clearance groove, and then the plug plate is inserted into the first clearance groove, and the bottom end of the plug plate abuts against the gasket, so that the first clearance groove can be closed to ensure the sealing performance of both ends of the shielding shell.

[0016] In a possible design, the positioning structure includes two threaded rods, and the ends of the two threaded rods that are away from each other are respectively rotatably connected to the inner walls of the placement cavity that are away from each other. The outer walls of the two threaded rods are threadedly sleeved with clamping blocks, and the sides of the two clamping blocks that are away from each other are provided with two mounting holes, and telescopic rods are fixed in the two mounting holes. The ends of the telescopic rods that are away from the clamping blocks are fixedly connected to the inner wall of one side of the placement cavity, and the cooperation between the clamping block and the telescopic rod is used to make the clamping block move smoothly. The telescopic rod is composed of two round rods with different diameters, and the two round rods are slidably sleeved on each other. The inner wall of the arc-shaped shielding cover is provided with an annular clearance groove, and two bevel gear rings are fixed on the inner wall of one side of the annular clearance groove. One end of the two threaded rods rotates and extends into the annular clearance groove and is fixed with bevel gears, and the bevel gears are meshed with the bevel gears. During the process of the shielding cover closing the placement cavity, the cooperation between the bevel gear and the bevel gear ring is used to drive the two clamping blocks to clamp the power line coupler; the arc-shaped shielding cover is driven to rotate 180° along the rotating cavity and the annular groove by the shifting block and the shifting plate, and during the rotation process, the cooperation between the arc-shaped shielding cover and the track groove limits the plug-in plate to prevent the plug-in plate from loosening and causing a gap in the first give-way groove, and when the arc-shaped shielding cover rotates, the cooperation between the bevel gear and the bevel gear ring drives the threaded rod to rotate, and the threaded rod pushes the clamping block toward the power line coupler. In addition, when one end of the arc-shaped shielding cover close to the shifting block extends into the rotating cavity, the two bevel gear rings in the arc-shaped shielding cover respectively mesh with the corresponding bevel gears, and at this time the two threaded rods rotate again. This time, the rotation of the threaded rod can drive the two clamping blocks to just complete the clamping and fixation of the power line coupler, thereby preventing the power line coupler from shaking in the placement cavity.

[0017] In a possible design, the limiting structure includes a U-shaped rod fixed to one side of the shielding shell, two shifting blocks are fixed to one side of the arc-shaped shielding cover, a same shifting plate is fixed between the two shifting blocks, a plurality of movable grooves are arranged on the top of the shifting plate, a fixed rod is fixed in the movable groove, a clamping plate is slidably connected in the movable groove, and the clamping plate is slidably sleeved on the outer wall of the fixed rod, the outer wall of the fixed rod is sleeved with a first tension spring fixedly connected to one side of the clamping plate, one end of the first tension spring is fixedly connected to the inner wall of one side of the movable groove, and the first tension spring is used to move the clamping plate to the middle Pull, a trapezoidal clamping plate is fixed to the bottom of one side of the clamping plate, and the trapezoidal clamping plate cooperates with the U-shaped rod to brake the arc-shaped shielding cover; when the shift block and the shift plate drive the arc-shaped shielding cover to rotate, the first tension spring exerts a pulling force on the clamping plate, and the trapezoidal clamping plate cooperates with the U-shaped rod to brake the shift plate. Since the inclined surface at the top of the trapezoidal clamping plate cooperates with the U-shaped rod, when the first tension spring pulls the clamping plate toward the power line coupler, the cooperation of the U-shaped rod and the trapezoidal clamping plate can make the shift block close to the bottom inner wall of the second make way groove, thereby ensuring the sealing of the arc-shaped shielding cover and the shielding shell to the mounting base.

[0018] In a possible design, two second clearance grooves are provided on both sides of the top of the shielding shell, and the second clearance grooves are used to make way for the shift block, so that the arc-shaped shielding cover can extend into the rotating cavity after rotating 180° at one end close to the shift block, ensuring that the bevel gear and the bevel gear ring can engage when the arc-shaped shielding cover is about to close the placement cavity.

[0019] In a possible design, a plurality of arc-shaped support plates for placing the power line coupler are fixed to the bottom inner wall of the placement cavity, and the arc-shaped support plates cooperate with the clamping blocks to clamp and fix the power line coupler.

[0020] In a possible design, annular grooves are provided on the inner walls of the placement cavity on both sides away from each other, and the annular grooves are connected to the rotating cavity. A track groove is provided on the side of the plug plate close to the arc-shaped support plate, and the track groove cooperates with the annular groove. The arc-shaped shielding cover cooperates with the track groove and the annular groove to position the plug plate.

[0021] In a possible design, a plurality of fixing bolts are provided in the mounting base for installing the mounting base in an appropriate position, a plurality of heat dissipating fins are fixed at both ends of the shielding shell, a plurality of heat dissipating fins are provided in the plurality of heat dissipating fins for increasing the contact area between the heat dissipating fins and the air, one end of the plurality of heat dissipating fins are fixedly extended into the placement cavity, and the ends of the plurality of heat dissipating fins located on both sides that are close to each other are in contact with the power line coupler for limiting the power line coupler; the heat dissipating fins guide the heat dissipated by the power line coupler to the outside of the shielding shell, and the heat dissipating holes can increase the contact area between the heat dissipating fins and the air, so that the heat dissipating fins can dissipate heat quickly.

[0022] In a possible design, the shielding shell and the arc-shaped shielding cover are made of any one of aluminum, copper and silver, and the gasket and the sealing ring are made of conductive rubber.

[0023] In a possible design, a plurality of rectangular grooves are provided at the bottom of the shielding shell, and the rectangular grooves are located above the bearing plate, a sliding rod is slidably penetrated through the top inner wall of the rectangular groove, the top end of the sliding rod is sealed and slidably extended into the rotating chamber, a frustum is provided at the top of the sliding rod, and the arc-shaped shielding cover cooperates with the frustum to control the downward movement of the sliding rod, the outer wall fixing sleeve of the sliding rod is provided with a fixing ring located in the rectangular groove, the outer wall sleeve of the sliding rod is provided with a second tension spring fixedly connected to the top of the fixing ring, the top end of the second tension spring is fixedly connected to the top inner wall of the rectangular groove to control the upward movement of the sliding rod, and connecting rods are rotatably connected on both sides of the fixing ring, and the bottom ends of the two connecting rods Both are rotatably connected with a movable plate, and the movable plate slides on the bottom of the shielding shell, and a connecting rod is fixed on the side where the two movable plates are close to each other, and the plug rod is engaged with the through hole to fix the shielding shell and the bearing plate; the shielding shell is placed on the bearing plate, and when the arc-shaped shielding cover is rotated 180° to close the placement cavity, the arc-shaped shielding cover releases the obstruction of the sliding rod, and the sliding rod moves upward under the tension of the second tension spring, and the movable plate and the plug rod move toward the middle under the action of the fixing ring and the connecting rod, and the plug rod can be stuck in the through hole to fix the shielding shell and the bearing plate, and vice versa, the mounting base and the shielding shell can be disassembled, so the shielding shell, the power line coupler and the mounting base can be easily installed and disassembled.

[0024] Beneficial effect: In the present invention, the ends of the two threaded rods that are away from each other are respectively rotatably connected to the inner walls of the placement cavity that are away from each other on both sides, the outer walls of the two threaded rods are threadedly sleeved with clamping blocks, and two bevel gear rings are fixed to the inner wall of one side of the annular clearance groove, and one end of the threaded rod is rotated to extend into the annular clearance groove and is fixed with a bevel gear; when the arc-shaped shielding cover rotates and the end close to the shifting block extends into the rotating cavity, the two bevel gear rings in the arc-shaped shielding cover are respectively meshed with the corresponding bevel gears, and the two threaded rods are rotated again at this time. The rotation of the threaded rods this time can drive the two clamping blocks to just complete the clamping and fixing of the power line coupler, thereby preventing the power line coupler from shaking in the placement cavity;

[0025] In the present invention, a rotating cavity is provided in the shielding shell, and an arc-shaped shielding cover is sealingly and slidably connected in the rotating cavity. The inner walls of the sides of the placement cavities that are away from each other are provided with annular grooves, and the annular grooves are communicated with the rotating cavity. A track groove that matches the annular groove is provided on one side of the plug plate, and one side of the arc-shaped shielding cover slides and extends into the annular groove and the track groove. During the rotation of the arc-shaped shielding cover, not only the top of the placement cavity can be sealed, but also the cooperation of the arc-shaped shielding cover and the track groove can limit the plug plate, and further seal the first clearance groove. The operation is simple, and the shielding shell can easily complete the sealing of the power line coupler to avoid the existence of gaps.

[0026] In the present invention, a gasket is provided in the first clearance groove, and sealing rings are fixed on both sides of the gasket, one of the sealing rings is fitted with one side of the shielding shell, and one side of the other sealing ring is fitted with the inner wall of one side of the placement cavity, and the outer diameter of the sealing ring is greater than the inner diameter of the gasket; the power line coupler is placed in the placement cavity, and the wiring at both ends of the power line coupler respectively passes through the first clearance groove, and then the sealing ring and the gasket are sleeved on the outer wall of the wiring, the gasket is located in the first clearance groove, and the two sealing rings are respectively located at the two ends of the gasket, and then the plug-in board is inserted into the first clearance groove, and the bottom end of the plug-in board contacts the gasket, so that the first clearance groove can be closed to ensure the sealing of the two ends of the shielding shell.

[0027] In the present invention, the arc-shaped shielding cover, the plug plate, the gasket and the sealing ring can easily seal the power line coupler through the rotation of the arc-shaped shielding cover, thereby preventing the power line coupler from being subjected to external electromagnetic interference. In addition, during the rotation of the arc-shaped shielding cover, the shielding shell and the mounting base can be fixed by the cooperation of the movable plate, the plug rod and the through hole, thereby facilitating the easy installation of the shielding shell at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a power line coupler electromagnetic interference protection integrated device provided in Embodiment 1 of the present invention;

[0029] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a power line coupler electromagnetic interference protection integrated device provided in Embodiment 1 of the present invention;

[0030] Figure 3 A schematic diagram of a three-dimensional exploded cross-sectional structure of a shielding shell, a plug board and a curved shielding cover of a power line coupler anti-electromagnetic interference integrated device provided in Example 1 of the present invention;

[0031] Figure 4 A schematic diagram of a three-dimensional exploded structure of a clamping block, a telescopic rod and a threaded rod of an integrated device for electromagnetic interference protection of a power line coupler provided in Example 1 of the present invention;

[0032] Figure 5 A schematic three-dimensional cross-sectional structure diagram of the coordination of an arc-shaped shielding cover and a shielding shell of a power line coupler electromagnetic interference protection integrated device provided in Embodiment 1 of the present invention;

[0033] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a paddle of a power line coupler electromagnetic interference protection integrated device provided in Embodiment 1 of the present invention;

[0034] Figure 7 A schematic three-dimensional cross-sectional structure diagram of a shielding shell and a mounting base of a power line coupler electromagnetic interference protection integrated device provided in Embodiment 2 of the present invention;

[0035] Figure 8 for Figure 7 Enlarged structural diagram at A in the middle.

[0036] In the figure: 1, mounting base; 2, bearing plate; 3, through hole; 4, shielding shell; 5, placement cavity; 6, first clearance groove; 7, rotation cavity; 8, annular groove; 9, arc shielding cover; 10, arc support plate; 11, power line coupler; 12, gasket; 13, sealing ring; 14, plug-in board; 15, track groove; 16, telescopic rod; 17, clamping block; 18, mounting hole; 19, threaded rod; 20, annular clearance groove; 21, Bevel gear; 22. Bevel gear ring; 23. U-shaped rod; 24. Second make way groove; 25. Shift block; 26. Shift plate; 27. Moving groove; 28. Fixed rod; 29. ​​Clamp; 30. First tension spring; 31. Trapezoidal clamping plate; 32. Heat dissipation fins; 33. Heat dissipation holes; 34. Fixing bolt; 35. Rectangular groove; 36. Sliding rod; 37. Fixed ring; 38. Second tension spring; 39. Moving plate; 40. Insert rod; 41. Connecting rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Example 1: Reference Figure 1 and Figure 2 , an integrated device for preventing electromagnetic interference, which is used in the field of power line couplers, mainly comprises a mounting base 1, the top of which is connected to a plurality of bearing plates 2 by bolts or other fixing methods. Through holes 3 are provided inside the bearing plates 2. On the top of the plurality of bearing plates 2, a shielding shell 4 is placed together, which is also made of metal and is used to shield electromagnetic interference.

[0039] Reference Figure 1 and Figure 3 A placement cavity 5 is provided inside the shielding shell 4 for placing the power line coupler 11. First clearance grooves 6 are provided at both ends of the shielding shell 4, and these first clearance grooves 6 are connected to the placement cavity 5 so that the connecting wires of the power line coupler 11 can pass through.

[0040] Reference Figure 3 In order to seal the top of the placement cavity 5, the device further includes an arc-shaped shielding cover 9. A rotating cavity 7 is also provided inside the shielding shell 4, and the rotating cavity 7 is connected to the placement cavity 5, and the arc-shaped shielding cover 9 can be sealed and slid in the rotating cavity 7. In this way, when the arc-shaped shielding cover 9 covers the top of the placement cavity 5, a closed shielding space can be formed to prevent electromagnetic interference.

[0041] Reference Figure 1-Figure 3 In order to seal the first clearance groove 6, the device is provided with a set of sealing structures in the two first clearance grooves 6. This set of sealing structures includes a plug plate 14 that slides with the first clearance groove 6. At the bottom of the first clearance groove 6, a gasket 12 is provided, and the gasket 12 is located below the plug plate 14. The connecting line of the power line coupler 11 will pass through this gasket 12. On both sides of the gasket 12, a sealing ring 13 is fixed. One of the sealing rings 13 fits tightly with one side of the shielding shell 4, and one side of the other sealing ring 13 fits tightly with the inner wall of one side of the placement cavity 5. Since the outer diameter of the sealing ring 13 is larger than the inner diameter of the gasket 12, the sealing between the sealing ring 13, the gasket 12 and the plug plate 14 can be increased.

[0042] Specifically, when the power line coupler 11 is placed in the placement cavity 5, and the wires at both ends thereof respectively pass through the first clearance groove 6, the sealing ring 13 and the gasket 12 can be sleeved on the outer wall of the wires, and the gasket 12 can be placed in the first clearance groove 6. Then, the plug-in board 14 is inserted into the first clearance groove 6 until its bottom end contacts the gasket 12, thereby closing the first clearance groove 6 and ensuring the sealing of both ends of the shielding shell 4.

[0043] Reference Figure 2-Figure 4 In order to clamp and fix the power line coupler 11 placed in the placement cavity 5, the device is provided with two sets of positioning structures in the placement cavity 5. This set of positioning structures includes two threaded rods 19, which are respectively rotatably connected to the inner walls on both sides of the placement cavity 5 and are away from each other. On the outer walls of the two threaded rods 19, a clamping block 17 is threadedly sleeved. The two clamping blocks 17 are used to clamp the power line coupler 11. Two mounting holes 18 are provided on the side of the clamping blocks 17 away from each other, and a telescopic rod 16 is fixed in each of the mounting holes 18. The telescopic rod 16 is composed of two round rods with different diameters, and the two round rods can be slidably sleeved on each other. One end of the telescopic rod 16 away from the clamping block 17 is fixedly connected to the inner wall of one side of the placement cavity 5. In this way, when the threaded rod 19 rotates, the clamping block 17 can be driven to move smoothly along the telescopic rod 16, thereby clamping and fixing the power line coupler 11.

[0044] In addition, an annular clearance groove 20 is provided on the inner wall of the arc-shaped shielding cover 9, and two bevel gear rings 22 are fixed to the inner wall of one side of the annular clearance groove 20. One end of the two threaded rods 19 rotates and extends into the annular clearance groove 20, and a bevel gear 21 is fixed to each of them. These bevel gears 21 are meshed with the bevel gear rings 22. When the arc-shaped shielding cover 9 closes the placement cavity 5, the cooperation between the bevel gear 21 and the bevel gear ring 22 can drive the two threaded rods 19 to rotate, thereby driving the two clamping blocks 17 to clamp the power line coupler 11.

[0045] Reference Figure 5 and Figure 6 In order to position the arc-shaped shielding cover 9, the device also sets a limiting structure on one side of the shielding shell 4. The limiting structure includes a U-shaped rod 23 fixed on one side of the shielding shell 4. This U-shaped rod 23 will serve as a part of the braking structure after the arc-shaped shielding cover 9 is rotated into place. Next, on one side of the arc-shaped shielding cover 9, we fixed two shifting blocks 25, and a shifting plate 26 was fixed between the two shifting blocks 25. The design of the shifting plate 26 is to more conveniently operate the rotation of the arc-shaped shielding cover 9. On the top of the shifting plate 26, we set a plurality of moving grooves 27. A fixed rod 28 is fixed in each of these moving grooves 27, and a clamping plate 29 is also slidably connected in the moving grooves 27. This clamping plate 29 is sleeved on the outer wall of the fixed rod 28, so it can slide along the fixed rod 28 in the moving groove 27. In order to ensure that the clamping plate 29 can be kept in a certain position when not subjected to external force, we sleeve a first tension spring 30 on the outer wall of the fixed rod 28. One end of the first tension spring 30 is fixedly connected to one side of the clamping plate 29, and the other end is fixedly connected to the inner wall of one side of the movable groove 27. In this way, the first tension spring 30 can generate a pulling force toward the middle of the clamping plate 29, so that the clamping plate 29 always has a tendency to move toward the middle.

[0046] Reference Figure 5 and Figure 6 At the bottom of one side of the clamping plate 29, we also fix a trapezoidal clamping plate 31. The trapezoidal clamping plate 31 is designed to cooperate with the U-shaped rod 23 to brake the arc-shaped shielding cover 9. When the shift block 25 and the shifting plate 26 drive the arc-shaped shielding cover 9 to rotate, due to the pulling force of the first tension spring 30 on the clamping plate 29, the trapezoidal clamping plate 31 will cooperate with the U-shaped rod 23, thereby braking the shifting plate 26.

[0047] Reference Figure 5 and Figure 6 It is worth noting that the top of the trapezoidal clamping plate 31 is designed with an inclined surface. The matching mode of this inclined surface and the U-shaped rod 23 enables the U-shaped rod 23 to slide along the inclined surface of the trapezoidal clamping plate 31 until it matches with the bottom of the trapezoidal clamping plate 31, and the shifting block 25 is closely attached to the bottom inner wall of the second evacuation groove 24. In this way, the sealing performance of the arc-shaped shielding cover 9 and the shielding shell 4 to the mounting base 1 can be ensured.

[0048] Reference Figure 5In order to realize the 180° rotation of the arc-shaped shielding cover 9, two second clearance grooves 24 are set on both sides of the top of the shielding shell 4. The function of these second clearance grooves 24 is to make way for the shifting block 25, so that the arc-shaped shielding cover 9 can extend into the rotating cavity 7 after rotating 180° at the end close to the shifting block 25. In this way, when the arc-shaped shielding cover 9 is about to close the placement cavity 5, the bevel gear 21 and the bevel gear ring 22 can be meshed, thereby further fixing the position of the arc-shaped shielding cover 9.

[0049] Reference Figure 3 On the bottom inner wall of the placement cavity 5, we fix a plurality of arc-shaped support plates 10 for placing the power line coupler 11. These arc-shaped support plates 10 cooperate with the clamping block 17 to clamp and fix the power line coupler 11. In this way, the stability of the power line coupler 11 in the placement cavity 5 can be ensured.

[0050] Reference Figure 3 In addition, we also set annular grooves 8 on the inner walls of the two sides of the placement cavity 5 that are away from each other. These annular grooves 8 are connected to the rotation cavity 7. On the side of the plug plate 14 close to the arc-shaped support plate 10, we set a track groove 15. This track groove 15 cooperates with the annular groove 8, and the arc-shaped shielding cover 9 cooperates with the track groove 15 and the annular groove 8. In this way, the plug plate 14 can be positioned to ensure its stability during the rotation of the arc-shaped shielding cover 9.

[0051] Reference Figure 1 A plurality of fixing bolts 34 are preset in the mounting base 1. These fixing bolts 34 are used to firmly mount the entire mounting base 1 at a predetermined position to ensure the stability of the entire device.

[0052] Reference Figure 1 and Figure 2 Next, we notice the design of the shielding shell 4. Multiple heat dissipation fins 32 are fixed on both ends of the shielding shell 4. These heat dissipation fins 32 not only increase the contact area with the air, but also have multiple heat dissipation holes 33 built in. These heat dissipation holes 33 further enhance the heat dissipation effect of the heat dissipation fins 32. One end of the heat dissipation fin 32 extends into the placement cavity 5, and the ends of the heat dissipation fins 32 on both sides that are close to each other are in contact with the power line coupler 11. This design not only plays a role in limiting the power line coupler 11, but also can effectively guide the heat generated by the power line coupler 11 to the outside of the shielding shell 4, and quickly dissipate it into the air through the heat dissipation holes 33.

[0053] In terms of material selection, the shielding shell 4 and the arc-shaped shielding cover 9 are made of metal materials with good electrical conductivity such as aluminum, copper or silver, which helps to enhance the electromagnetic shielding effect of the device. The gasket 12 and the sealing ring 13 are made of conductive rubber material to ensure the electromagnetic sealing inside the device.

[0054] To sum up, through this design, we can easily complete the installation and disassembly work between the shielding shell 4, the power line coupler 11 and the mounting base 1, which not only improves the flexibility and maintainability of the device, but also ensures its good electromagnetic shielding and heat dissipation performance, and can effectively protect the power line coupler against electromagnetic interference while ensuring its stability and reliability.

[0055] Example 2: Reference Figure 7 and Figure 8 , improved on the basis of embodiment 1: In addition, the bottom of the shielding shell 4 is designed with a plurality of rectangular grooves 35, and these rectangular grooves 35 are located above the carrier plate 2. A sliding rod 36 is slidably penetrated through the top inner wall of each rectangular groove 35, and the top end of the sliding rod 36 is sealed and slidably extended into the rotating cavity 7, and a truncated cone is provided. When the arc-shaped shielding cover 9 rotates 180° to close the placement cavity 5, it will cooperate with the truncated cone, thereby releasing the obstruction of the sliding rod 36.

[0056] The outer wall of the sliding rod 36 is fixedly sleeved with a fixing ring 37 located in the rectangular groove 35. At the same time, the outer wall of the sliding rod 36 is also sleeved with a second tension spring 38, the top end of the second tension spring 38 is fixedly connected to the top inner wall of the rectangular groove 35, and the bottom end is fixedly connected to the top of the fixing ring 37. This design enables the sliding rod 36 to move upward under the tension of the second tension spring 38.

[0057] Both sides of the fixing ring 37 are rotatably connected to a connecting rod 41, and the bottom ends of the two connecting rods 41 are rotatably connected to a moving plate 39, and the two moving plates 39 can slide on the bottom of the shielding shell 4. When the sliding rod 36 moves upward, the two moving plates 39 will move toward the middle through the transmission action of the connecting rod 41, and drive the insertion rod 40 to be inserted into the through hole 3 on the bearing plate 2, so as to fix the shielding shell 4 and the bearing plate 2.

[0058] On the contrary, when it is necessary to disassemble the shielding shell 4, the arc-shaped shielding cover 9 only needs to be rotated back to its original position so that it can again block the downward movement of the sliding rod 36. At this time, the sliding rod 36 will move downward under the action of gravity and other possible forces, and drive the moving plate 39 and the insertion rod 40 to move to both sides through the connecting rod 41, thereby releasing the fixing of the shielding shell 4.

[0059] A method for using a power line coupler electromagnetic interference protection integrated device comprises the following steps:

[0060] S1. During installation, the power line coupler 11 is placed in the placement cavity 5, and the two ends of the power line coupler 11 are connected through the first clearance groove 6 respectively. Then, the sealing ring 13 and the gasket 12 are sleeved on the outer wall of the connection, the gasket 12 is located in the first clearance groove 6, and the two sealing rings 13 are located at the two ends of the gasket 12 respectively. Then, the plug-in board 14 is inserted into the first clearance groove 6, and the bottom end of the plug-in board 14 contacts the gasket 12, so that the first clearance groove 6 can be closed to ensure the sealing of the two ends of the shielding shell 4;

[0061] S2, the arc shielding cover 9 is driven to rotate 180° along the rotating cavity 7 and the annular groove 8 by the shifting block 25 and the shifting plate 26, and the arc shielding cover 9 cooperates with the track groove 15 during the rotation process to limit the plug plate 14, so as to prevent the plug plate 14 from loosening and causing a gap in the first yielding groove 6, and when the arc shielding cover 9 rotates, the cooperation between the bevel gear 21 and the bevel gear ring 22 drives the threaded rod 19 to rotate, and the threaded rod 19 pushes the clamping block 17 toward the power line coupler 11. In addition, when one end of the arc shielding cover 9 close to the shifting block 25 extends into the rotating cavity 7, the two bevel gear rings 22 in the arc shielding cover 9 are respectively engaged with the corresponding bevel gears 21, and at this time, the two threaded rods 19 rotate again, and this time the rotation of the threaded rod 19 can drive the two clamping blocks 17 to just complete the clamping and fixing of the power line coupler 11, so as to prevent the power line coupler 11 from shaking in the placement cavity 5;

[0062] S3, when the shift block 25 and the shift plate 26 drive the arc-shaped shielding cover 9 to rotate, the first tension spring 30 exerts a pulling force on the clamping plate 29, and the trapezoidal clamping plate 31 cooperates with the U-shaped rod 23 to brake the shifting plate 26. Since the inclined surface at the top of the trapezoidal clamping plate 31 cooperates with the U-shaped rod 23, when the first tension spring 30 pulls the clamping plate 29 toward the power line coupler 11, the cooperation between the U-shaped rod 23 and the trapezoidal clamping plate 31 can make the shift block 25 close to the bottom inner wall of the second clearance groove 24, thereby ensuring the sealing of the arc-shaped shielding cover 9 and the shielding shell 4 to the mounting base 1;

[0063] S4. When it is necessary to fix the shielding shell 4 and the mounting base 1 to facilitate the later installation of the shielding shell 4 and the power line coupler 11 at the corresponding positions, the shielding shell 4 is placed on the supporting plate 2. When the arc-shaped shielding cover 9 rotates 180° to close the placement cavity 5, the arc-shaped shielding cover 9 releases the obstruction of the sliding rod 36. The sliding rod 36 moves upward under the tension of the second tension spring 38. The movable plate 39 and the plug 40 move toward the middle under the action of the fixing ring 37 and the connecting rod 41. The plug 40 can be inserted into the through hole 3 to fix the shielding shell 4 and the supporting plate 2. Conversely, the mounting base 1 and the shielding shell 4 can be disassembled. Therefore, the shielding shell 4, the power line coupler 11 and the mounting base 1 can be easily installed and disassembled.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power line coupler anti-electromagnetic interference integrated device, characterized in that: It comprises a mounting base (1), a plurality of bearing plates (2) are fixed on the top of the mounting base (1), a through hole (3) is provided in each of the plurality of bearing plates (2), and a same shielding shell (4) is placed on the top of the plurality of bearing plates (2); It also comprises a power line coupler (11), a placement cavity (5) is provided in the shielding shell (4), both ends of the shielding shell (4) are provided with first clearance grooves (6), and the placement cavity (5) is connected to the first clearance groove (6), the power line coupler (11) is placed in the placement cavity (5), and the first clearance groove (6) is used to make way for the connection line of the power line coupler (11); It also includes an arc-shaped shielding cover (9), wherein a rotating cavity (7) is provided in the shielding shell (4), and the arc-shaped shielding cover (9) is sealingly slidable in the rotating cavity (7) to seal the top of the placement cavity (5); Two sets of sealing structures are respectively arranged in the two first clearance grooves (6) and are used to seal the first clearance grooves (6); Two sets of positioning structures are both arranged in the placement cavity (5) and are used to clamp and fix the power line coupler (11) placed in the placement cavity (5); The limiting structure is arranged on one side of the shielding shell (4) and is used to position the arc-shaped shielding cover (9).

2. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 1, characterized in that: The sealing structure comprises an inserting plate (14) which is slidably matched with the first clearance groove (6); a gasket (12) is arranged in the first clearance groove (6), and the gasket (12) is located at the bottom of the inserting plate (14); a connecting line of the power line coupler (11) passes through the gasket (12); sealing rings (13) are fixed on both sides of the gasket (12); one of the sealing rings (13) is in contact with one side of the shielding shell (4), and one side of the other sealing ring (13) is in contact with the inner wall of one side of the placement cavity (5); the outer diameter of the sealing ring (13) is greater than the inner diameter of the gasket (12), so as to increase the sealing performance between the sealing ring (13), the gasket (12) and the inserting plate (14).

3. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 2, characterized in that: The positioning structure comprises two threaded rods (19), the ends of the two threaded rods (19) being rotatably connected to the inner walls of the placement cavity (5) at two sides being away from each other, the outer walls of the two threaded rods (19) being threadedly sleeved with clamping blocks (17), the sides of the two clamping blocks (17) being away from each other being provided with two mounting holes (18), the two mounting holes (18) being fixed with telescopic rods (16), the ends of the telescopic rods (16) being away from the clamping blocks (17) being fixedly connected to the inner wall of one side of the placement cavity (5), the clamping blocks (17) and the telescopic rod (16) being matched to enable the clamping blocks (17) to move smoothly, and the telescopic rod (16) being arranged on ... arranged on the outer walls of the two threaded rods (19), and the two telescopic rods (16) being arranged on the outer walls of the two threaded rods (19) being arranged on the outer walls of the two threaded rods (19), and the two telescopic rods (16) being arranged on the outer walls of the two threaded rods (19) being arranged on the outer walls of the two threaded rods (19), and the two telescopic rods (16) being arranged on the outer walls of The retractable rod (16) is composed of two round rods with different diameters, and the two round rods are slidably sleeved with each other. The inner wall of the arc-shaped shielding cover (9) is provided with an annular clearance groove (20), and two bevel gear rings (22) are fixed to the inner wall of one side of the annular clearance groove (20). One end of the two threaded rods (19) are rotated to extend into the annular clearance groove (20) and are fixed with a bevel gear (21), and the bevel gear (21) is meshed with the bevel gear ring (22). When the arc-shaped shielding cover (9) closes the placement cavity (5), the cooperation between the bevel gear (21) and the bevel gear ring (22) is used to drive the two clamping blocks (17) to clamp the power line coupler (11).

4. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 3, characterized in that: The limiting structure comprises a U-shaped rod (23) fixed to one side of the shielding shell (4); two shifting blocks (25) are fixed to one side of the arc-shaped shielding cover (9); a same shifting plate (26) is fixed between the two shifting blocks (25); a plurality of movable grooves (27) are provided on the top of the shifting plate (26); a fixed rod (28) is fixed in the movable groove (27); a clamping plate (29) is slidably connected in the movable groove (27); and the clamping plate (29) is slidably sleeved on the fixed rod The outer wall of the fixing rod (28) is sleeved with a first tension spring (30) fixedly connected to one side of the clamping plate (29), one end of the first tension spring (30) is fixedly connected to the inner wall of one side of the movable groove (27), and the first tension spring (30) is used to pull the clamping plate (29) toward the middle, and a trapezoidal clamping plate (31) is fixed to the bottom of one side of the clamping plate (29), and the trapezoidal clamping plate (31) cooperates with the U-shaped rod (23) to brake the arc-shaped shielding cover (9).

5. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 4, characterized in that: Two second making way grooves (24) are provided on both sides of the top of the shielding shell (4), and the second making way grooves (24) are used to make way for the shifting block (25).

6. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 5, characterized in that: A plurality of arc-shaped support plates (10) for placing the power line coupler (11) are fixed to the bottom inner wall of the placement cavity (5); the arc-shaped support plates (10) cooperate with the clamping blocks (17) to clamp and fix the power line coupler (11).

7. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 6, characterized in that: The inner walls of the placement cavity (5) on both sides away from each other are provided with annular grooves (8), and the annular grooves (8) are communicated with the rotation cavity (7); the insert plate (14) is provided with a track groove (15) on one side close to the arc-shaped support plate (10), and the track groove (15) cooperates with the annular groove (8); the arc-shaped shielding cover (9) cooperates with the track groove (15) and the annular groove (8) to position the insert plate (14).

8. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 7, characterized in that: The mounting base (1) is provided with a plurality of fixing bolts (34) for mounting the mounting base (1) at an appropriate position. A plurality of heat dissipation fins (32) are fixed at both ends of the shielding shell (4). A plurality of heat dissipation holes (33) are provided in the plurality of heat dissipation fins (32) for increasing the contact area between the heat dissipation fins (32) and the air. One end of the plurality of heat dissipation fins (32) is fixedly extended into the placement cavity (5). The ends of the plurality of heat dissipation fins (32) located on both sides that are close to each other touch the power line coupler (11) for limiting the position of the power line coupler (11).

9. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 8, characterized in that: The material of the shielding shell (4) and the arc-shaped shielding cover (9) is any one of aluminum, copper and silver, and the material of the gasket (12) and the sealing ring (13) are both conductive rubber.

10. The integrated device for preventing electromagnetic interference of a power line coupler according to claim 9, characterized in that: The bottom of the shielding shell (4) is provided with a plurality of rectangular grooves (35), and the rectangular grooves (35) are located above the bearing plate (2). A sliding rod (36) is slidably penetrated through the top inner wall of the rectangular groove (35). The top end of the sliding rod (36) is sealed and slidably extended into the rotating chamber (7). A frustum is provided at the top end of the sliding rod (36), and an arc-shaped shielding cover (9) cooperates with the frustum to control the downward movement of the sliding rod (36). The outer wall fixed sleeve of the sliding rod (36) is provided with a fixing ring (37) located in the rectangular groove (35). The outer wall sleeve of the sliding rod (36) is provided with a fixing ring (37) that is connected to the fixing ring (37). A second tension spring (38) is fixedly connected to the top of the rectangular groove (37), and the top of the second tension spring (38) is fixedly connected to the top inner wall of the rectangular groove (35) for controlling the upward movement of the sliding rod (36). Both sides of the fixed ring (37) are rotatably connected with connecting rods (41), and the bottom ends of the two connecting rods (41) are rotatably connected with movable plates (39), and the movable plates (39) slide on the bottom of the shielding shell (4), and the two movable plates (39) are fixed with connecting rods (41) on the sides close to each other, and the insertion rod (40) is engaged with the through hole (3) for fixing the shielding shell (4) and the supporting plate (2).

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