High frequency electric appliance isolator

Abstract

This application discloses a high-frequency electrical isolator, including a protective cover assembly, a high-frequency electrical isolator, and a clamping assembly. The clamping assembly of this invention has a clamping cover plate on the front of the wiring. Flexible clips and flexible rings mounted on the first and second moving plates clamp the wire ends. After all wire ends are fixed, the locking cams at the upper and lower ends of the high-frequency electrical isolator are rotated, pressing the first moving plate. The first moving plate moves towards the first limiting plate, thereby clamping the wire ends with the flexible clips and flexible rings. Simultaneously, during the rotation of the locking cam, the guide protrusion at the step of the locking cam presses against the upper surface of the first moving plate, causing the first moving plate to press down on the flexible pad. The first moving plate, through the clamping connecting plate, causes the second moving plate to move synchronously. In this way, the wire ends are clamped and subjected to a pulling force towards the wiring port of the high-frequency electrical isolator, thus preventing poor contact due to loosening of the wire ends during equipment operation.

Description

Technical Field

[0001] This invention relates to the field of electrical isolation technology, specifically a high-frequency electrical isolator. Background Technology

[0002] An electrical isolator, also known as a signal isolator, is a signal isolation device that converts a single or dual-channel input current or voltage signal into an isolated single or dual-channel linear current or voltage signal at the output, thereby improving the electrical isolation performance between the input, output, and power supply.

[0003] Electrical isolators are widely used in PLC-controlled automation equipment. Signal isolators can not only protect the weak current circuits in the PLC control circuit, but also shield the interference of high frequency signals on the signal transmission of weak current lines, thereby making the signal transmission of the PLC control circuit more accurate. Therefore, electrical isolators are usually installed in PLC-controlled automation equipment.

[0004] However, existing electrical isolators have the following problems when used in automated equipment: Typically, the power distribution cabinets of automated equipment used in production lines are located in chassis, and these cabinets contain numerous electrical components and complex wiring. Initially, the various electrical components of the power distribution cabinet are usually clipped onto aluminum rails before being installed into the chassis and then wired. During operation, due to the continuous operation of the automated equipment, vibrations from equipment movement inevitably cause loose wiring or damage to electrical components, requiring frequent maintenance and repair. Existing electrical isolators are fixed using a back-mounted clip-on method, and in automated equipment... Multiple electrical isolators are typically required. After wiring, the space between electrical components becomes smaller, making it difficult to easily open the back clips and remove the isolators during later maintenance or replacement. Removing them often affects adjacent isolators, easily causing loose wiring in other isolators, prolonging the maintenance process, and even damaging other isolators. In addition, because the equipment is often under vibration and the signal lines at the connection ports are usually fitted with number tubes, the probability of poor wiring contact increases, which in turn increases the frequency of maintenance required for the isolators, thus increasing the probability of damage caused by disassembling and installing them. Summary of the Invention

[0005] To address the problems in the prior art, the present invention provides a high-frequency electrical isolator.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a high-frequency electrical isolator, including a protective cover assembly, a high-frequency electrical isolator and a mounting assembly. One end of the protective cover assembly is rotatably fitted with multiple mounting assemblies. Multiple high-frequency electrical isolators are installed in the protective cover assembly, and the upper and lower ends of the high-frequency electrical isolators are fixed by the mounting assemblies.

[0007] The protective cover assembly includes a protective cover for mounting and fixing a high-frequency electrical isolator. The protective cover has multiple mounting slots inside, and mounting slot baffles are welded to both sides of the mounting slots. A first bushing is welded to one end of the mounting slot, and a magnetic block is welded to one end of the mounting slot baffle. Rectangular holes are opened at the upper and lower ends of the protective cover corresponding to the mounting slots, and spring pieces are fixedly installed in the rectangular holes by bolts.

[0008] The mounting assembly includes a mounting cover plate that is rotatably fitted on a first bushing via a pin. A locking assembly is rotatably fitted at the middle position of the upper end face of the mounting cover plate. A wire clamping assembly is fitted on one side of the locking assembly, and a limit assembly is fitted on the other side of the locking assembly.

[0009] Furthermore, magnetic suction holes are provided on both sides of one end of the mounting cover, and the magnetic suction holes and magnetic suction blocks are a mating mechanism. A second bushing is welded to one end of the mounting cover, and the second bushing and the first bushing are a mating mechanism. The mounting cover is provided with a first wiring hole and a second wiring hole respectively corresponding to the wiring port of the high-frequency electrical isolator.

[0010] Furthermore, the locking assembly includes a rotating shaft that is rotatably fitted to the middle position of the upper end face of the mounting cover plate via a bushing and retaining spring. A locking cam is fitted on the outer wall of the rotating shaft, and a transmission rod is welded to the upper end face of the locking cam.

[0011] Furthermore, the wire clamping assembly includes a first limiting plate fixed to one side of the first wiring hole and the second wiring hole by bolts, a first movable plate and a second movable plate respectively provided on the other side of the first wiring hole and the second wiring hole, and a flexible clamping strip is installed at one end of the first movable plate and the second movable plate. A wire clamping connecting plate is fixedly welded between the first movable plate and the second movable plate, and the first movable plate and the second movable plate are connected into a whole by the wire clamping connecting plate. A second limiting plate is fixed to the position between the first movable plate and the rotating shaft on the upper end face of the clamping cover by bolts.

[0012] Furthermore, the first limiting plate has multiple arc grooves concentric with the wiring holes, and flexible retaining rings are installed in the arc grooves.

[0013] Furthermore, a flexible gasket is bonded to the lower end face of the second limiting plate.

[0014] Furthermore, the limiting component includes a limiting block welded to the upper end of the mounting cover plate near the second bushing, and the limiting block has a limiting hole. Sliding grooves are symmetrically welded to the upper end of the mounting cover plate and both sides of the limiting block. Locking teeth are slidably engaged in the sliding grooves. One end of the locking teeth near the upper locking cam is fixed to a limiting connecting plate by bolts. A limiting rod is welded to the middle position of the limiting connecting plate, and the limiting rod is slidably engaged in the limiting hole. A return spring is sleeved on the outer wall of the limiting rod.

[0015] Furthermore, the locking cam includes a stepped cam, and one end of the stepped cam that cooperates with the wire clamping assembly is provided with a guide flange, and the guide flange and the first moving plate are a cooperating mechanism.

[0016] The beneficial effects of this invention are:

[0017] 1: This invention provides a high-frequency electrical isolator. The clamping assembly of this invention has a cover plate on the front of the wiring. Flexible clips and flexible rings mounted on the first and second moving plates clamp the wiring ends. After all the wiring ends are fixed, the locking cams at the upper and lower ends of the high-frequency electrical isolator are rotated to press the first moving plate. The first moving plate moves towards the first limiting plate, thereby clamping the wiring ends with the flexible clips and flexible rings. At the same time, during the rotation of the locking cam, the guide protrusion at the step of the locking cam presses the upper surface of the first moving plate, causing the first moving plate to press down on the flexible pad. The first moving plate moves the second moving plate synchronously through the clamping connecting plate. In this way, the wiring ends are clamped and subjected to a pulling force towards the wiring port of the high-frequency electrical isolator, so that the wiring ends are not prone to loosening and poor contact during the operation of the equipment.

[0018] 2: This invention provides a high-frequency electrical isolator. The locking assembly of this invention features a locking cam that, while rotating to press the connector head, simultaneously presses the other end of the locking cam against a limiting connecting plate. The limiting connecting plate pushes a limiting rod to slide within a limiting hole. A return spring is compressed, and the moving limiting connecting plate causes the locking teeth to slide in a sliding groove. Initially, the end of the locking teeth is flush with the end of the mounting cover. When rotated 90°, the return spring rebounds, causing the limiting connecting plate to press against the side plane of the locking cam, locking the cam. At this point, the end of the locking teeth extends beyond the mounting cover and covers the protective cover, thus locking the mounting cover. This makes the assembly and disassembly of the high-frequency electrical isolator more convenient and quick, thereby avoiding damage to the high-frequency electrical isolator caused by maintenance and disassembly. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional view of the overall structure of the present invention;

[0021] Figure 2 This is a perspective view of the protective cover assembly of the present invention;

[0022] Figure 3 This is the present invention. Figure 2 A magnified view of area A in the middle;

[0023] Figure 4 This is a perspective view of the high-frequency electrical isolator of the present invention;

[0024] Figure 5 This is an axial view of the mounting cover plate of the present invention. Figure 1 ;

[0025] Figure 6 This is an axial view of the mounting cover plate of the present invention. Figure 2 ;

[0026] Figure 7 This is a top view of the mounting cover plate of the present invention;

[0027] Figure 8 This is the present invention. Figure 7 A sectional view along the middle edge BB;

[0028] Figure 9 This is a side view of the locking camshaft of the present invention.

[0029] In the diagram: 1. Protective cover assembly; 2. High-frequency electrical isolator; 3. Mounting assembly; 11. Protective cover; 12. Spring clip; 13. Mounting slot baffle; 14. First bushing; 15. Magnetic block; 21. First wiring port; 22. Second wiring port; 31. Mounting cover; 32. Wire clamping assembly; 33. Locking assembly; 34. Limiting assembly; 311. Magnetic hole; 312. Second bushing; 313. First wiring hole; 314. Second wiring hole; 321. First limiting plate; 322. Flexible retaining ring; 323. Flexible retaining strip; 324. First moving plate; 325. Wire clamping connecting plate; 326. Second moving plate; 327. Flexible gasket; 328. Second limiting plate; 331. Transmission rod; 332. Locking cam; 333. Rotating shaft; 341. Limiting connecting plate; 342. Limiting block; 343. Limiting rod; 344. Return spring; 345. Sliding groove; 346. Locking tooth; 3321. Stepped cam; 3322. Guide flange. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1-9 As shown, the high-frequency electrical isolator of the present invention includes a protective cover assembly 1, a high-frequency electrical isolator 2 and a mounting assembly 3. One end of the protective cover assembly 1 is rotatably fitted with a plurality of mounting assemblies 3. A plurality of high-frequency electrical isolators 2 are installed in the protective cover assembly 1, and the upper and lower ends of the high-frequency electrical isolators 2 are fixed by the mounting assemblies 3.

[0032] The protective cover assembly 1 includes a protective cover 11 for mounting and fixing the high-frequency electrical isolator 2. The protective cover 11 has multiple mounting slots inside, and mounting slot baffles 13 are welded to both sides of the mounting slots. A first bushing 14 is welded to one end of the mounting slot, and a magnetic block 15 is welded to one end of the mounting slot baffle 13. Rectangular holes are opened at the upper and lower ends of the protective cover 11 corresponding to the mounting slots, and spring pieces 12 are fixedly installed in the rectangular holes by bolts.

[0033] The mounting assembly 3 includes a mounting cover plate 31 that is rotatably fitted on the first bushing 14 via a pin. A locking assembly 33 is rotatably fitted at the middle position of the upper end face of the mounting cover plate 31. A wire clamping assembly 32 is fitted on one side of the locking assembly 33, and a limit assembly 34 is fitted on the other side of the locking assembly 33.

[0034] In actual operation, the protective cover assembly 1 is fixed in the designated position by bolts, the high-frequency electrical isolator 2 is inserted into the mounting slot, the high-frequency electrical isolator 2 is clamped by the spring piece 12, and then the mounting cover 31 is covered. After the wiring is completed, the locking assembly 33 is triggered to lock the mounting cover 31 in the locked position, and at the same time the wire clamping assembly 32 is triggered to clamp the wire head.

[0035] As one embodiment of the present invention, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, magnetic suction holes 311 are provided on both sides of one end of the mounting cover plate 31, and the magnetic suction holes 311 and the magnetic suction block 15 are a mating mechanism. A second bushing 312 is welded to one end of the mounting cover plate 31, and the second bushing 312 and the first bushing 14 are a mating mechanism. The mounting cover plate 31 is provided with a first wiring hole 313 and a second wiring hole 314 corresponding to the wiring port of the high-frequency electrical isolator 2. The first wiring hole 313 and the second wiring hole 314 correspond to the wiring port 21 and the wiring port 22 on the high-frequency electrical isolator 2, respectively.

[0036] In actual operation, the upper and lower ends of the protective cover 11 are fitted with multiple mounting covers 31. The high-frequency electrical isolator 2 is inserted into the mounting slot provided in the protective cover 11, and then the upper and lower mounting covers 31 are covered. At this time, the magnetic hole 311 is attracted to the magnetic block 15, so that the mounting covers 31 are kept in the state of being engaged with the high-frequency electrical isolator 2.

[0037] As one embodiment of the present invention, such as Figure 6-8 As shown, the locking assembly 33 includes a rotating shaft 333 that is rotatably fitted to the middle position of the upper end face of the mounting cover plate 31 via a bushing and retaining spring. A locking cam 332 is fitted on the outer wall of the rotating shaft 333, and a transmission rod 331 is welded to the upper end face of the locking cam 332.

[0038] In actual operation, manually rotating the transmission rod 331 drives the rotating shaft 333 to rotate, causing the locking cam 332 to switch with the mating surfaces of the wire clamping assembly 32 and the locking assembly 33, thereby squeezing the wire clamping assembly 32 and the locking assembly 33 to move.

[0039] As one embodiment of the present invention, such as Figure 5-9 As shown, the wire clamping assembly 32 includes a first limiting plate 321 fixed to one side of the first wiring hole 313 and the second wiring hole 314 respectively by bolts. A first movable plate 324 and a second movable plate 326 are respectively provided on the other side of the first wiring hole 313 and the second wiring hole 314. A flexible clamping strip 323 is attached to one end of each of the first movable plate 324 and the second movable plate 326. A wire clamping connecting plate 325 is fixedly welded between the first movable plate 324 and the second movable plate 326, and the first movable plate 324 and the second movable plate 326 are connected by the wire clamping connecting plate 325. As a whole, the position between the first moving plate 324 on the upper end face of the mounting cover plate 31 and the rotating shaft 333 is fixed by bolts to the second limiting plate 328. The first limiting plate 321 has multiple arc grooves concentric with the wiring holes, and a flexible retaining ring 322 is installed in the arc groove. A flexible gasket 327 is bonded to the lower end face of the second limiting plate 328. The locking cam 332 includes a stepped cam 3321. The end of the stepped cam 3321 that cooperates with the wire clamping assembly 32 is provided with a guide flange 3322, and the guide flange 3322 and the first moving plate 324 are a cooperating mechanism.

[0040] In actual operation, the cover plate 31 is installed on the front cover before wiring. The first moving plate 324 and the second moving plate 326 are pushed to their maximum stroke positions, maximizing the distance between the flexible clips 323 and flexible retaining rings 322 installed on the first moving plate 324 and the second moving plate 326 to facilitate wiring. Then, the wire ends are passed through the flexible clips 323 and flexible retaining rings 322, through the wiring holes, and locked one by one into the wiring ports of the high-frequency electrical isolator 2. After all wire ends are fixed, the transmission rods 331 set at the upper and lower ends of the high-frequency electrical isolator 2 are rotated, causing the locking cam 332 to rotate clockwise. The locking cam 332 presses against the first... The movable plate 324 moves towards the first limiting plate 321, thereby clamping the wire end with the flexible clamping strip 323 and the flexible clamping ring 322. At the same time, as the locking cam 332 rotates, the guide protrusion 3322 set at the step of the locking cam 332 presses the upper end surface of the first movable plate 324, causing the first movable plate 324 to press down on the flexible pad 327. The first movable plate 324 causes the second movable plate 326 to move synchronously through the wire clamping connecting plate 325. In this way, the wire end is clamped and subjected to a pulling force towards the wiring port of the high-frequency electrical isolator 2, so that the wire end is not prone to poor contact due to loosening during equipment operation.

[0041] As one embodiment of the present invention, such as Figure 6As shown, the limiting component 34 includes a limiting block 342 welded to the upper end of the mounting cover plate 31 near the second bushing 312, and the limiting block 342 has a limiting hole. The upper end face of the mounting cover plate 31 and the two sides of the limiting block 342 are symmetrically welded with sliding grooves 345. Locking teeth 346 are slidably engaged in the sliding grooves 345. One end of the locking teeth 346 near the upper locking cam 332 is fixed with a limiting connecting plate 341 by bolts. A limiting rod 343 is welded to the middle position of the limiting connecting plate 341, and the limiting rod 343 is slidably engaged in the limiting hole. A return spring 344 is sleeved on the outer wall of the limiting rod 343.

[0042] In actual operation, while the locking cam 332 rotates to press the connector, the other end of the locking cam 332 presses against the limiting connecting plate 341. The limiting connecting plate 341 pushes the limiting rod 343 to slide in the limiting hole. The return spring 344 is compressed, and the limiting connecting plate 341 moves to drive the locking tooth 346 to slide in the sliding groove 345. In the initial state, the end of the locking tooth 346 is flush with the end of the mounting cover plate 31. When rotated 90°, the return spring 344 rebounds, causing the limiting connecting plate 341 to abut against the plane on the side of the locking cam 332 and lock the locking cam 332. At this time, the end of the locking tooth 346 extends beyond the mounting cover plate 31 and covers the protective cover 11, thereby locking the mounting cover plate 31.

[0043] Working principle:

[0044] Process 1: The protective cover assembly 1 is fixed in the designated position by bolts, the high-frequency electrical isolator 2 is inserted into the mounting slot, the high-frequency electrical isolator 2 is mounted by the spring piece 12, and then the mounting cover plate 31 is covered. At this time, the magnetic hole 311 is attracted to the magnetic block 15, so that the mounting cover plate 31 is kept in the state of cooperating with the high-frequency electrical isolator 2.

[0045] Process 2: Before wiring, install the cover plate 31 on the cover, push the first moving plate 324 and the second moving plate 326 to their maximum stroke position, maximizing the distance between the flexible clips 323 and flexible retaining rings 322 installed on the first moving plate 324 and the second moving plate 326 to facilitate wiring. Then, insert the wire end between the flexible clips 323 and the flexible retaining rings 322, pass it through the wiring hole, and lock it one by one into the wiring port of the high-frequency electrical isolator 2. After all wire ends are fixed, rotate the transmission rods 331 set at the upper and lower ends of the high-frequency electrical isolator 2 to make the locking cam 332 rotate clockwise. The locking cam 332 presses the first moving plate 324 and the second moving plate 326 to maximize the distance between the flexible clips 323 and the flexible retaining rings 322 to facilitate wiring. The moving plate 324 moves towards the first limiting plate 321, thereby clamping the wire end with the flexible clamping strip 323 and the flexible clamping ring 322. At the same time, during the rotation of the locking cam 332, the guide protrusion 3322 set at the step of the locking cam 332 presses the upper end surface of the first moving plate 324, causing the first moving plate 324 to press down the flexible pad 327. The first moving plate 324 causes the second moving plate 326 to move synchronously through the wire clamping connecting plate 325. In this way, the wire end is clamped and subjected to a pulling force towards the wiring port of the high-frequency electrical isolator 2, so that the wire end is not prone to poor contact due to loosening during the operation of the equipment.

[0046] Process 3: While the locking cam 332 rotates and presses the connector, the other end of the locking cam 332 presses against the limiting connecting plate 341. The limiting connecting plate 341 pushes the limiting rod 343 to slide in the limiting hole. The return spring 344 is compressed. The movement of the limiting connecting plate 341 drives the locking tooth 346 to slide in the sliding groove 345. In the initial state, the end of the locking tooth 346 is flush with the end of the mounting cover plate 31. When rotated 90°, the return spring 344 rebounds and causes the limiting connecting plate 341 to abut against the plane on the side of the locking cam 332 and lock the locking cam 332. At this time, the end of the locking tooth 346 extends beyond the mounting cover plate 31 and covers the protective cover 11, thereby locking the mounting cover plate 31.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-frequency electrical isolator, comprising a protective cover assembly (1), a high-frequency electrical isolator (2), and a mounting assembly (3), characterized in that: One end of the protective cover assembly (1) is rotatably fitted with multiple mounting components (3), and multiple high-frequency electrical isolators (2) are installed in the protective cover assembly (1), and the upper and lower ends of the high-frequency electrical isolators (2) are fixed by the mounting components (3); The protective cover assembly (1) includes a protective cover (11) for mounting and fixing the high-frequency electrical isolator (2). The protective cover (11) has multiple mounting slots inside, and mounting slot baffles (13) are welded on both sides of the mounting slots. A first bushing (14) is welded to one end of the mounting slot, and a magnetic block (15) is welded to one end of the mounting slot baffle (13). Rectangular holes are opened at the upper and lower ends of the protective cover (11) corresponding to the mounting slots, and spring pieces (12) are fixedly installed in the rectangular holes by bolts. The mounting assembly (3) includes a mounting cover plate (31) that is rotatably fitted on the first bushing (14) via a pin. A locking assembly (33) is rotatably fitted at the middle position of the upper end face of the mounting cover plate (31). A wire clamping assembly (32) is fitted on one side of the locking assembly (33), and a limit assembly (34) is fitted on the other side of the locking assembly (33).

2. A high-frequency electrical isolator according to claim 1, characterized in that... The mounting cover (31) has magnetic suction holes (311) on both sides of one end, and the magnetic suction holes (311) and the magnetic suction block (15) are a mating mechanism. The mounting cover (31) has a second bushing (312) welded to one end, and the second bushing (312) and the first bushing (14) are a mating mechanism. The mounting cover (31) has a first wiring hole (313) and a second wiring hole (314) respectively corresponding to the wiring port of the high-frequency electrical isolator (2).

3. A high-frequency electrical isolator according to claim 2, characterized in that... The locking assembly (33) includes a rotating shaft (333) that is rotatably fitted to the middle position of the upper end face of the mounting cover plate (31) via a bushing snap ring. A locking cam (332) is fitted on the outer wall of the rotating shaft (333), and a transmission rod (331) is welded to the upper end face of the locking cam (332).

4. A high-frequency electrical isolator according to claim 3, characterized in that... The wire clamping assembly (32) includes a first limiting plate (321) fixed to one side of the first wiring hole (313) and the second wiring hole (314) by bolts. A first moving plate (324) and a second moving plate (326) are respectively provided on the other side of the first wiring hole (313) and the second wiring hole (314). A flexible clip (323) is installed at one end of the first moving plate (324) and the second moving plate (326). A wire clamping connecting plate (325) is fixedly welded between the first moving plate (324) and the second moving plate (326). The first moving plate (324) and the second moving plate (326) are connected as a whole by the wire clamping connecting plate (325). A second limiting plate (328) is fixed to the position between the first moving plate (324) on the upper end face of the mounting cover plate (31) and the rotating shaft (333) by bolts.

5. A high-frequency electrical isolator according to claim 4, characterized in that... The first limiting plate (321) has multiple arc grooves concentric with the wiring holes, and a flexible retaining ring (322) is installed in the arc groove.

6. A high-frequency electrical isolator according to claim 4, characterized in that, A flexible gasket (327) is bonded to the lower end face of the second limiting plate (328).

7. A high-frequency electrical isolator according to claim 4, characterized in that... The limiting component (34) includes a limiting block (342) welded to the upper end of the mounting cover plate (31) near the second bushing (312), and a limiting hole is provided on the limiting block (342). Sliding grooves (345) are symmetrically welded to the upper end face of the mounting cover plate (31) and the two sides of the limiting block (342). Locking teeth (346) are slidably engaged in the sliding grooves (345). One end of the locking teeth (346) near the locking cam (332) is fixed to a limiting connecting plate (341) by bolts. A limiting rod (343) is welded to the middle position of the limiting connecting plate (341), and the limiting rod (343) is slidably engaged in the limiting hole. A return spring (344) is sleeved on the outer wall of the limiting rod (343).

8. A high-frequency electrical isolator according to any one of claims 4-7, characterized in that, The locking cam (332) includes a stepped cam (3321), and the end of the stepped cam (3321) that cooperates with the wire clamping assembly (32) is provided with a guide flange (3322), and the guide flange (3322) and the first moving plate (324) are a cooperating mechanism.

Images