A line reactor that effectively reduces noise

Abstract

The present invention relates to the technical field of reactors, and discloses an incoming line reactor that effectively reduces noise, comprising an upper iron yoke and a lower iron yoke, wherein three upper contact plates and three lower contact plates are respectively arranged on the opposite surfaces of the upper iron yoke and the lower iron yoke, and a mounting bracket is arranged between the upper contact plate and the lower contact plate, and the outer surfaces of the mounting bracket are respectively movably sleeved with outer casing wires, and the outer casing coil comprises an insulating outer casing, and a connecting groove is provided on the lower surface of the insulating outer casing, and a connecting air pump is connected to the top inner wall of the connecting groove, and an extension groove in the same vertical position as the connecting groove is provided on the upper surface of the insulating outer casing. The accuracy of the connection between the outer casing coils is increased, and the deviation caused by the error between the outer casing coils is avoided, so that the outer casing coils will not vibrate when the reactor is running, and the mechanical noise of the outer casing coils is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to an incoming line reactor capable of effectively reducing noise. Background Art

[0002] There are a lot of harmonic interferences in the power grid, and the harmonic interferences will affect the normal operation of the automation control system. In serious cases, it will cause electrical equipment to malfunction and stop working, and may cause damage to the equipment. Therefore, installing the incoming line reactor at the three-phase five-wire end of the inverter can effectively limit the harmonic interference from the power grid. Therefore, the incoming line reactor is widely used. At the same time, in order to improve the efficiency and use efficiency of the incoming line reactor, it is necessary to install a bushing coil on the outer ring of the reactor. However, most of the existing bushing coils are assembled, so the bushing coils are contact-sealed with each other. If there is a slight offset between the bushing coils during long-term use, the bushing coils will form friction with each other during operation of the reactor, generating excessive mechanical noise. At the same time, if it is placed in the open air, rainwater will easily penetrate between the two layers of bushing coils. After the voltage is applied, the two layers of bushing coils may produce crackling discharge sounds. Under the action of mechanical noise and discharge sound, it is easy to increase the loss of the reactor itself, resulting in large magnetic leakage of the reactor, causing the looseness between the bushing coils to continue to increase, and finally leading to an imbalance in the structure connected to the incoming line reactor, and even burning of the reactor. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides an incoming line reactor that effectively reduces noise, and solves the problem that most bushing coils are assembled, so that the bushing coils are contact-sealed with each other. If the bushing coils are slightly offset during long-term use, the bushing coils will form friction with each other during operation of the reactor, generating excessive mechanical noise. If the reactor is placed in the open air, rainwater will easily penetrate between the two layers of bushing coils, and after the voltage is applied, crackling discharge sounds may be generated.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an incoming line reactor that effectively reduces noise, comprising an upper iron yoke and a lower iron yoke, three upper contact plates and three lower contact plates are respectively arranged on the opposite surfaces of the upper iron yoke and the lower iron yoke, a mounting bracket is arranged between the upper contact plate and the lower contact plate, and outer surfaces of the mounting bracket are respectively movably sleeved with outer sleeve coils; the outer sleeve coil comprises an insulating outer sleeve, a connecting groove is provided on the lower surface of the insulating outer sleeve, a connecting air pump is connected to the top inner wall of the connecting groove, an extension groove is provided on the upper surface of the insulating outer sleeve at the same vertical position as the connecting groove, a connecting limiting block matching the connecting groove is slidably connected in the extension groove, a supporting air bag connected to the lower side on the bottom inner wall of the extension groove is connected to the lower surface of the connecting limiting block, a limiting block matching the connecting groove is connected to the surface of the lower contact plate facing the outer sleeve coil, and a limiting groove matching the connecting limiting block is connected to the surface of the upper contact plate facing the outer sleeve coil.

[0007] Preferably, the right side surfaces of the upper contact plate and the lower contact plate are both provided with conductive terminals, and the mounting bracket is embedded with an iron core whose upper and lower ends are respectively connected to the upper contact plate and the lower contact plate, and the four corners of the mounting bracket are provided with screws whose upper and lower ends extend out of the upper contact plate and the lower contact plate respectively, and the screws are respectively threadedly connected to the upper contact plate and the lower contact plate, and nuts are provided on both ends of the extended screws. Beneficial effect: the distance between the upper contact plate and the lower contact plate can be shortened by turning the nut, so that the upper contact plate and the lower contact plate can achieve the effect of fixing the outer sleeve coil.

[0008] Preferably, the mounting bracket is configured to be H-shaped, which has the beneficial effect of forming two cavities between the mounting bracket and the outer jacket coil. In this way, the cavities have a heat dissipation effect when the reactor is in operation. At the same time, the cavities can also be used for the placement of staff, increasing the contact area between the staff's hands and the outer jacket coil. This makes it convenient for the staff to apply pressure on their hands when installing the outer jacket coil, thereby facilitating the installation of the outer jacket coil.

[0009] Preferably, the front and rear inner walls of the outer sleeve coil are connected with docking tenon blocks, and the front and rear surfaces of the mounting bracket are provided with docking tenon grooves that are compatible with the docking tenon blocks and extend from the upper and lower surfaces of the mounting bracket respectively. The beneficial effects are: the sealing between the outer sleeve coil and the mounting bracket is ensured, sliding between the outer sleeve coil and the mounting bracket is avoided, the firmness of the outer sleeve coil after installation is increased, and the shaking noise between the outer sleeve coil and the mounting bracket is avoided, thereby further achieving the noise reduction effect.

[0010] Preferably, the docking tenon block is configured to be in an arc wave shape, which has the beneficial effect that when the outer sleeve coil is sleeved on the mounting bracket, the difficulty of docking between the docking tenon block and the docking tenon groove is reduced, thereby improving the operating efficiency of the staff when installing the outer sleeve coil. At the same time, the arc wave shape increases the smoothness of the contact surface between the docking tenon block and the docking tenon groove, thereby reducing the friction generated when the docking tenon block slides along the docking tenon groove, avoiding the docking tenon block from getting stuck or stuck during installation, and further ensuring the efficiency of the outer sleeve coil when being sleeved.

[0011] Preferably, the insulating jacket is provided with a ventilation pipe with both ends extending into the connecting groove and the extension groove respectively. The end of the ventilation pipe located in the connecting groove passes through the connecting air pump, and the end of the ventilation pipe located in the extension groove passes through the supporting airbag. The beneficial effect is that the gas in the connecting air pump can enter the supporting airbag through the ventilation pipe.

[0012] Preferably, a wire core is arranged in the insulating sheath, and four contact arc plates are respectively arranged on the outer surface of the wire core, and a plurality of elastic support frames are connected to the surface of the contact arc plate on the side facing away from the wire core, and the other end of the elastic support frame is connected to the inner wall of the insulating sheath, and an insulating filler is filled between the inner cavity of the sheath coil and the elastic support frame. Beneficial effect: when the wire core of the sheath coil vibrates during use, the elastic support frame forms a buffering effect on the wire core, thereby avoiding mechanical noise caused by the contact between the wire core and the inner wall of the sheath coil.

[0013] Preferably, two movable grooves are provided on the inner walls on the front and rear sides of the connecting groove, and the connecting structures in the two movable grooves are identical and arranged in a mirror image form. A rotating block is connected to the inner wall of the bottom of the movable groove, and a contact plate is rotatably connected to the rotating block. A built-in cavity is provided in the insulating sleeve and is in the same vertical position as the movable groove, and a piston is slidably connected in the built-in cavity. The lower surface of the piston is connected to a control rod with a lower end extending through the movable groove and slidably connected to the inner wall of the insulating sleeve, and a limiting ring movably connected to the end of the control rod located in the movable groove is connected to a limit ring on the end of the contact plate away from the connection air pump. The lower surface of the piston is connected to a reset spring movably connected to the control rod and with the lower end connected to the inner wall of the bottom of the built-in cavity. A connecting pipe with the other end extending into the built-in cavity is connected to the connecting air pump, and one end of the connecting pipe extending into the built-in cavity is located below the piston. Beneficial effects: further strengthening the firmness of the connection between the outer sleeve coils, avoiding looseness between the two outer sleeve coils, and further avoiding magnetic leakage in the reactor.

[0014] The basic working principle of this scheme: Step 1: When the first outer jacket coil is installed on the mounting bracket, the limiting block on the lower contact plate extends into the connecting groove, so that the limiting block squeezes the connecting air pump, so that the gas in the connecting air pump enters the supporting airbag through the ventilation pipe, causing the supporting airbag to expand, so that the supporting airbag pushes the connecting limiting block to slide upward and the upper end extends out of the upper surface of the outer jacket coil; Step 2: Therefore, the next outer jacket coil is successively mounted on the mounting bracket, so that the protruding connecting limiting block extends into the connecting groove in the second outer jacket coil. According to the above principle, it is concluded that the connecting limiting block on the second outer jacket coil also extends out, so in this way, multiple outer jacket coils are successively installed on the mounting bracket;

[0015] Step 3: When the last outer coil is installed on the mounting bracket, the upper contact plate is docked with the mounting bracket, and the protruding connection limit block on the last outer coil is docked with the limit groove; Step 4: When the connecting air pump is squeezed and contracted, part of the gas in the connecting air pump is transported to the built-in cavity by the connecting pipe, so that the piston moves upward and finally contacts the inner wall of the top of the built-in cavity. At the same time, the reset tension spring is stretched, and the control rod pulls the contact plate through the limit ring, so that the contact plate is pulled horizontally and the side of the contact plate facing the connecting air pump is flush with the inner wall of the connecting groove. When the connection limit When the block is fully extended into the connecting groove, the contact plate contacts the surface of the connecting limit block; Step 5: When the two outer sleeve coils are about to separate, the connecting limit block will slide downward, so that the connecting air pump loses part of the extrusion force to expand. The connecting air pump first extracts the gas in the built-in cavity through the connecting pipe, so the piston loses thrust, causing the reset spring to pull the piston downward. At the same time, the control rod will form a downward thrust on the contact plate. Because the contact plate rotates in an arc with the rotating block as the rotating point, the contact plate will form an upward prying force on the connecting limit block, so that the connecting limit block returns to its initial position.

[0016] The basic beneficial effects of this solution are: the accuracy of docking between the outer jacket coils is increased, and the error between the outer jacket coils that causes offset is avoided. In this way, the outer jacket coils will not vibrate when the reactor is running, and mechanical noise from the outer jacket coils is avoided. At the same time, the sealing between the outer jacket coils is further increased, preventing external water vapor from entering the outer jacket coils and causing noise, so that the reactor can achieve a silent effect when used, reducing the loss of the incoming line reactor itself during operation, avoiding the leakage of the reactor, ensuring the balance of the structure connected to the incoming line reactor, and increasing the service life of the reactor. At the same time, it also reduces the impact on surrounding personnel and avoids excessive noise volume affecting human health.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides an incoming line reactor that effectively reduces noise, and has the following beneficial effects:

[0019] 1. The incoming line reactor which effectively reduces noise increases the accuracy of docking between the outer jacket coils and avoids the deviation caused by errors between the outer jacket coils. In this way, the outer jacket coils will not vibrate when the reactor is running, and the mechanical noise caused by friction between the outer jacket coils is avoided. At the same time, the sealing between the outer jacket coils is further increased, and the external water vapor is prevented from entering the outer jacket coils to cause noise, so that the reactor can achieve a silent effect when used, reduce the loss of the incoming line reactor itself during operation, avoid the leakage of the reactor, ensure the balance of the structure connected to the incoming line reactor, and increase the service life of the reactor. At the same time, it also reduces the impact on surrounding personnel and avoids excessive noise volume affecting human health.

[0020] 2. The incoming line reactor that effectively reduces noise has an H-shape mounting bracket, so that two cavities are formed between the mounting bracket and the outer jacket coil. In this way, when the reactor is in operation, the cavity has a heat dissipation effect, avoiding the outer jacket coil from being damaged due to excessive temperature. At the same time, the cavity can also be used for the placement of staff, increasing the contact area between the staff's hands and the outer jacket coil, so that it is convenient for the staff to apply pressure on their hands when installing the outer jacket coil, thereby facilitating the installation of the outer jacket coil.

[0021] 3. The line reactor that effectively reduces noise is provided with a docking tenon block and a docking tenon groove, which further ensures the sealing between the outer jacket coil and the mounting bracket, avoids sliding between the outer jacket coil and the mounting bracket, increases the firmness of the outer jacket coil after installation, avoids shaking and noise between the outer jacket coil and the mounting bracket, further improves the noise reduction effect, and further reduces the loss of the line reactor itself during operation.

[0022] 4. The incoming line reactor that effectively reduces noise has the butt joint block set to an arc wave shape. Therefore, when the outer jacket coil is mounted on the mounting bracket, the difficulty of docking between the butt joint block and the butt joint groove is reduced, thereby improving the operating efficiency of the staff when installing the outer jacket coil. At the same time, the arc wave shape increases the smoothness of the contact surface between the butt joint block and the butt joint groove, thereby reducing the friction generated when the butt joint block slides along the butt joint groove, avoiding the butt joint block from getting stuck or stuck during installation, and further ensuring the efficiency of the outer jacket coil when being mounted.

[0023] 5. The incoming line reactor that effectively reduces noise has a supporting airbag that is in a contracted state in the initial state. Therefore, the connection limiting block is contracted into the extension groove in the initial state, which provides a protective effect on the connection limiting block and avoids wear of the connection limiting block when the outer coil is not in use. This further ensures the sealing of the connection limiting block when it is docked with the connection groove, thereby ensuring the use effect of the connection limiting block.

[0024] 6. The incoming line reactor which effectively reduces noise is provided with a contact arc plate and an elastic support frame. When the core of the outer coil vibrates during use, the elastic support frame forms a buffering effect on the core, thereby avoiding mechanical noise caused by contact between the core and the inner wall of the outer coil, and further ensuring the silent effect of the reactor when in use.

[0025] 7. The incoming line reactor that effectively reduces noise is provided with a contact plate. When the two outer jacket coils are about to separate, the contact plate will form an upward prying force on the connection limiting block, so that the connection limiting block returns to its initial position, thereby further strengthening the firmness of the connection between the outer jacket coils, avoiding looseness between the two outer jacket coils, and further avoiding magnetic leakage of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of an incoming line reactor that effectively reduces noise according to the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the split incoming line reactor that effectively reduces noise in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the outer jacket coil of the present invention;

[0029] Figure 4 The schematic diagram of the structure of the mounting bracket of the present invention is as follows

[0030] Figure 5 It is a right side plan view of the outer sleeve coil of the present invention;

[0031] Figure 6 A right side plan view of the outer sleeve coil assembly of the present invention;

[0032] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0033] Figure 8 for Figure 6 Enlarged view of point B in the middle;

[0034] Fig. 9 for Figure 5 Enlarged view of point C in the middle;

[0035] Fig.10for Figure 6 Enlarged view of point D in the middle.

[0036] In the figure: 1 upper iron yoke, 2 lower iron yoke, 3 upper contact plate, 4 lower contact plate, 5 conductive terminal, 6 outer jacket coil, 61 insulating outer jacket, 62 core, 63 contact arc plate, 64 elastic support frame, 65 insulating filler, 611 connecting groove, 612 connecting air pump, 613 extension groove, 614 connecting limiting block, 615 supporting air bag, 616 ventilation pipe, 617 limiting block, 618 limiting groove, 619 movable groove, 620 rotating block, 621 contact plate, 622 built-in cavity, 623 piston, 624 control pull rod, 625 limiting ring, 626 reset tension spring, 627 connecting pipe, 7 mounting rod, 8 docking tenon groove, 9 mounting bracket, 10 screw rod, 11 iron core, 12 docking tenon block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 10 , the present invention provides a new technical solution:

[0039] Embodiment 1:

[0040] A line reactor for effectively reducing noise includes an upper iron yoke 1 and a lower iron yoke 2. Three upper contact plates 3 and three lower contact plates 4 are respectively arranged on the opposite surfaces of the upper iron yoke 1 and the lower iron yoke 2. The connection structure between the three upper contact plates 3 and the three lower contact plates 4 is the same. Therefore, the following mainly describes the structure between a group of upper contact plates 3 and lower contact plates 4. The right side surfaces of the upper contact plates 3 and the lower contact plates 4 are both provided with conductive terminals 5; further, a mounting bracket 9 is provided between the upper contact plates 3 and the lower contact plates 4, and the mounting bracket 9 is embedded with an iron core 11 whose upper and lower ends are respectively connected to the upper contact plates 3 and the lower contact plates 4, so that the iron core 11, the upper conductive terminal 5 and the lower conductive terminal 5 form a series circuit, and the mounting bracket 9 The four corners are provided with screws 10 extending from the upper and lower ends of the upper contact plate 3 and the lower contact plate 4 respectively, and the screws 10 are respectively threadedly connected to the upper contact plate 3 and the lower contact plate 4, and nuts are provided on the two ends extending from the screws 10. The outer surface of the mounting bracket 9 is movably sleeved with a plurality of outer sleeve coils 6. The number of outer sleeve coils 6 is set according to actual conditions and is not limited here. Therefore, by screwing the nuts, the spacing between the upper contact plate 3 and the lower contact plate 4 can be shortened, so that the upper contact plate 3 and the lower contact plate 4 can achieve the effect of fixing the outer sleeve coil 6. In this embodiment, the mounting bracket 9 is further set to an H shape, so that two cavities are formed between the mounting bracket 9 and the outer sleeve coil 6, so that when the inductor is in operation The cavity has a heat dissipation effect, and the cavity can also be used for the placement of the staff, increasing the contact area between the staff's hands and the outer jacket coil 6, so that it is convenient for the staff to apply pressure with their hands when the outer jacket coil 6 is installed, which is convenient for the installation of the outer jacket coil 6; further, the inner walls on the front and rear sides of the outer jacket coil 6 are connected with docking tenon blocks 12, and the docking tenon blocks 12 and the outer jacket coil 6 are made of the same material, and the front and rear surfaces of the mounting bracket 9 are provided with docking tenon grooves 8 that are compatible with the docking tenon blocks 12 and extend from the upper and lower surfaces of the mounting bracket 9 respectively. Therefore, when the outer jacket coil 6 is installed on the outer surface of the mounting bracket 9, the docking tenon blocks 12 are docked and matched with the docking tenon grooves 8, which further ensures the outer jacket coil 6 and the mounting bracket. The sealing between the frames 9 avoids the sliding between the outer jacket coil 6 and the mounting bracket 9, and increases the firmness of the outer jacket coil 6 after installation; in the present embodiment, the docking tenon block 12 is further set to a circular arc wave shape, so when the outer jacket coil 6 is sleeved on the mounting bracket 9, the difficulty of docking between the docking tenon block 12 and the docking tenon groove 8 is reduced, thereby improving the operating efficiency of the staff when installing the outer jacket coil 6, and at the same time, the circular arc wave shape increases the smoothness of the contact surface between the docking tenon block 12 and the docking tenon groove 8, thereby reducing the friction force generated when the docking tenon block 12 slides along the docking tenon groove 8, avoiding the docking tenon block 12 from getting stuck or stuck during installation, and further ensuring the efficiency of the outer jacket coil 6 when being sleeved;

[0041] Embodiment 2:

[0042] Embodiment 2 is a corresponding improvement made on the basis of embodiment 1: further, the outer jacket coil 6 includes an insulating jacket 61, a wire core 62 is arranged inside the insulating jacket 61, and four contact arc plates 63 are respectively arranged on the outer surface of the wire core 62, and a plurality of elastic support frames 64 are connected to the surface of the contact arc plate 63 on the side facing away from the wire core 62, and the other end of the elastic support frame 64 is connected to the inner wall of the insulating jacket 61, and the material of the elastic support frame 64 is set to rubber material, so that the elastic support frame 64 has high elasticity, and the gap between the inner cavity of the outer jacket coil 6 and the elastic support frame 64 is filled with an insulating filler 65, in this way, when the outer jacket coil 6 is in use, the wire core 62 vibrates, and the elastic support frame 64 forms a buffering effect on the wire core 62, thereby avoiding the contact between the wire core 62 and the inner wall of the outer jacket coil 6 to generate mechanical noise;

[0043] Embodiment three:

[0044] Embodiment 3 is a corresponding improvement made on the basis of Embodiment 1 and Embodiment 2: a connection groove 611 is further provided on the lower surface of the insulating jacket 61, and a connection air pump 612 is connected to the top inner wall of the connection groove 611. The connection air pump 612 is a sealed micro-foot-operated air pump, so the connection air pump 612 is initially filled with gas. An extension groove 613 is provided on the upper surface of the insulating jacket 61, which is in the same vertical position as the connection groove 611. At the same time, the extension groove 613 has the same shape as the connection groove 611, and a connection limiting block 61 that matches the connection groove 611 is slidably connected in the extension groove 613. 4. The lower surface of the connection limiting block 614 is connected to a support airbag 615 connected to the inner wall of the bottom of the extension groove 613 on the lower side. The support airbag 615 is an existing structure and will not be described in detail here. The support airbag 615 is in a contracted state in the initial state. Therefore, the connection limiting block 614 is contracted into the extension groove 613 in the initial state, which forms a protective effect on the connection limiting block 614 and avoids the connection limiting block 614 from being worn when the outer sleeve coil 6 is not in use. This further ensures the sealing of the connection limiting block 614 when it is connected to the connection groove 611, and ensures the use effect of the connection limiting block 614;

[0045] Further, a plurality of vent pipes 616 are provided in the insulating jacket 61, both ends of which extend into the connecting groove 611 and the extending groove 613, respectively. At the same time, one end of the vent pipe 616 located in the connecting groove 611 penetrates into the connecting air pump 612, and one end of the vent pipe 616 located in the extending groove 613 penetrates into the supporting air bag 615, so that the gas in the connecting air pump 612 can enter the supporting air bag 615 through the vent pipe 616;

[0046] Furthermore, a limiting block 617 that matches the connecting groove 611 is connected to the side surface of the lower contact plate 4 facing the outer sleeve coil 6. Therefore, when the first outer sleeve coil 6 is installed on the mounting bracket 9, the limiting block 617 on the lower contact plate 4 extends into the connecting groove 611, so that the limiting block 617 squeezes the connecting air pump 612, so that the gas in the connecting air pump 612 enters the supporting air bag 615 through the ventilation pipe 616, so that the supporting air bag 615 expands, so that the supporting air bag 615 pushes the connecting limiting block 614 to slide upward and the upper end extends out of the upper surface of the outer sleeve coil 6, so that the next outer sleeve coil 6 is successively mounted on the mounting bracket 9, so that the protruding connecting limiting block 614 extends into the connecting groove 611 in the second outer sleeve coil 6. According to the above principle, it is concluded that the connecting limiting block 614 on the second outer sleeve coil 6 also extends out, so in this way, multiple outer sleeve coils 6 are successively installed on the mounting bracket 9;

[0047] Furthermore, a limiting groove 618 matching the connection limiting block 614 is connected to the surface of one side of the upper contact plate 3 facing the outer jacket coil 6, so that when the last outer jacket coil 6 is installed on the mounting bracket 9 and the upper contact plate 3 is docked with the mounting bracket 9, the connection limiting block 614 protruding from the last outer jacket coil 6 docks with the limiting groove 618. In this way, the accuracy of docking between the outer jacket coils 6 and the outer jacket coils 6 is further increased, and the situation that the error between the outer jacket coils 6 and the outer jacket coils 6 causes the offset is avoided. In this way, the outer jacket coils 6 and the outer jacket coils 6 will not vibrate when the reactor is running, and the situation that the outer jacket coils 6 have mechanical noise is avoided. At the same time, the sealing between the outer jacket coils 6 is further increased, and the external water vapor is prevented from entering the outer jacket coils 6 to cause noise, so that the reactor can achieve a silent effect when in use, reduce the loss of the incoming line reactor itself during operation, avoid the situation of magnetic leakage of the reactor, ensure the balance of the structure connected to the incoming line reactor, and increase the service life of the reactor. At the same time, it also reduces the impact on the surrounding personnel and avoids the excessive noise volume affecting human health.

[0048] Further, a plurality of movable grooves 619 are provided on the inner walls on both sides of the front and rear sides of the connection groove 611, and the connection structures in the two movable grooves 619 are identical and are arranged in a mirror image. Therefore, the following mainly describes the structure in the movable groove 619 on the rear side. A rotating block 620 is connected to the inner wall at the bottom of the movable groove 619. A contact plate 621 is rotatably connected to the rotating block 620. At the same time, the center of the contact plate 621 is arranged on the rotating block 620. Therefore, the contact plate 621 and the rotating block 620 are connected in a lever principle.

[0049] Furthermore, a plurality of built-in cavities 622 are provided in the insulating jacket 61, which are in the same vertical position as the movable groove 619. A piston 623 is slidably connected in the built-in cavity 622. The lower surface of the piston 623 is connected to a control rod 624 whose lower end penetrates into the movable groove 619 and is slidably connected to the inner wall of the insulating jacket 61. At the same time, a sealing rubber ring is provided between the control rod 624 and the inner wall of the insulating jacket 61, thereby avoiding the cross-flow of the air in the built-in cavity 622 and the gas in the movable groove 619. The control rod 624 is connected to one end located in the movable groove 619 with a limiting ring 625 movably sleeved on the end of the contact plate 621 away from the connection to the air pump 612. Therefore, the control rod 624 slides up and down to drive the contact plate 621 to rotate in an arc with the rotating block 620 as the rotating point. At the same time, the inner circle of the limiting ring 625 is larger than the height of the contact plate 621, thereby avoiding the mechanical jamming between the contact plate 621 and the inner wall of the limiting ring 625.

[0050] Further, a return spring 626 is connected to the lower surface of the piston 623 and is movably sleeved on the control rod 624. The lower end of the return spring 626 is connected to the inner wall of the bottom of the built-in cavity 622. The return spring 626 itself has a certain pulling force. Fig. 9 , the initial state of the contact plate 621 is that the control rod 624 pushes the contact plate 621 away from the end connected to the air pump 612 and tilts downward;

[0051] Furthermore, a connecting pipe 627 is connected to the connecting air pump 612, and the other end of the connecting pipe 627 extends into the built-in cavity 622. At the same time, one end of the connecting pipe 627 extending into the built-in cavity 622 is located below the piston 623. Therefore, when the connecting air pump 612 is squeezed and contracted, part of the gas in the connecting air pump 612 is transported to the built-in cavity 622 by the connecting pipe 627, so that the piston 623 moves upward and finally contacts the inner wall of the top of the built-in cavity 622. At the same time, the reset spring 626 is stretched, and the control rod 624 pulls the contact plate 621 through the limiting ring 625, so that the contact plate 621 is pulled horizontally and the side of the contact plate 621 facing the connecting air pump 612 is flush with the inner wall of the connecting groove 611. When the connecting limiting block 614 is fully extended into the connecting groove 611, the contact plate 621 contacts the surface of the connecting limiting block 614.

[0052] In this solution, the length of the connecting pipe 627 is less than that of the vent pipe 616, so the built-in cavity 622 is first filled with gas, so that the connection limit block 614 will not contact the contact plate 621 during the rotation of the contact plate 621. At the same time, when the two outer sleeve coils 6 are about to separate, the connection limit block 614 will slide downward, so that the connection air pump 612 loses part of the extrusion force to expand, and the connection air pump 612 first extracts the gas in the built-in cavity 622 through the connecting pipe 627, so the piston 623 loses the thrust, causing the piston 623 to retract. The tension spring 626 pulls the piston 623 to move downward, and at the same time, the control rod 624 will form a downward thrust on the contact plate 621. Because the contact plate 621 rotates in an arc with the rotating block 620 as the rotating point, the contact plate 621 will form an upward prying force on the connection limiting block 614, so that the connection limiting block 614 returns to its initial position. In this way, the firmness of the connection between the outer jacket coils is further strengthened, looseness between the two outer jacket coils 6 is avoided, and magnetic leakage in the inductor is further avoided.

[0053] Working Principle: When a line reactor that effectively reduces noise is used;

[0054] Step 1: When the first outer jacket coil 6 is mounted on the mounting bracket 9, the limiting block 617 on the lower contact plate 4 extends into the connecting groove 611, so that the limiting block 617 squeezes the connecting air pump 612, so that the gas in the connecting air pump 612 enters the supporting air bag 615 through the vent pipe 616, so that the supporting air bag 615 expands, so that the supporting air bag 615 pushes the connecting limiting block 614 to slide upward and the upper end extends out of the upper surface of the outer jacket coil 6;

[0055] Step 2: Therefore, the next outer jacket coil 6 is sequentially mounted on the mounting bracket 9, so that the protruding connection limiting block 614 extends into the connection groove 611 in the second outer jacket coil 6. According to the above principle, the connection limiting block 614 on the second outer jacket coil 6 also extends out, so that multiple outer jacket coils 6 are sequentially mounted on the mounting bracket 9 in this way;

[0056] Step 3: When the last outer coil 6 is mounted on the mounting bracket 9, the upper contact plate 3 is docked with the mounting bracket 9, and the protruding connection limiting block 614 on the last outer coil 6 is docked with the limiting groove 618;

[0057] Step 4: When the connecting air pump 612 is squeezed and contracted, part of the gas in the connecting air pump 612 is transported to the built-in cavity 622 by the connecting pipe 627, so that the piston 623 moves upward and finally contacts the inner wall of the top of the built-in cavity 622. At the same time, the reset spring 626 is stretched, and the control rod 624 pulls the contact plate 621 through the limiting ring 625, so that the contact plate 621 is pulled horizontally and the side of the contact plate 621 facing the connecting air pump 612 is flush with the inner wall of the connecting groove 611. When the connecting limiting block 614 is fully extended into the connecting groove 611, the contact plate 621 contacts the surface of the connecting limiting block 614.

[0058] Step 5: When the two outer sleeve coils 6 are about to separate, the connection limiting block 614 will slide downward, so that the connection air pump 612 loses part of the squeezing force to expand. The connection air pump 612 first extracts the gas in the built-in cavity 622 through the connecting pipe 627. Therefore, the piston 623 loses the thrust, so that the reset spring 626 pulls the piston 623 to move downward. At the same time, the control rod 624 will form a downward thrust on the contact plate 621. Because the contact plate 621 rotates in an arc with the rotating block 620 as the rotating point, the contact plate 621 will form an upward prying force on the connection limiting block 614, so that the connection limiting block 614 returns to its initial position.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A line reactor for effectively reducing noise, comprising an upper iron yoke (1) and a lower iron yoke (2), characterized in that: Three upper contact plates (3) and three lower contact plates (4) are respectively arranged on the opposing surfaces of the upper iron yoke (1) and the lower iron yoke (2); a mounting bracket (9) is arranged between the upper contact plates (3) and the lower contact plates (4); outer surfaces of the mounting brackets (9) are movably sleeved with outer sleeve coils (6); the outer sleeve coils (6) include an insulating outer sleeve (61); a connecting groove (611) is provided on the lower surface of the insulating outer sleeve (61); a connecting air pump (612) is connected to the top inner wall of the connecting groove (611); and an upper surface of the insulating outer sleeve (61) is provided with a connecting groove (611) which is in the same position as the connecting groove (611). an extension groove (613) in a vertical position, a connection limiting block (614) matching the connection groove (611) being slidably connected in the extension groove (613), a support air bag (615) connected to the lower side on the inner wall of the bottom of the extension groove (613) being connected to the lower surface of the connection limiting block (614), a limiting block (617) matching the connection groove (611) being connected to the surface of the lower contact plate (4) facing the outer coil (6), and a limiting groove (618) matching the connection limiting block (614) being connected to the surface of the upper contact plate (3) facing the outer coil (6); The mounting bracket (9) is configured to be H-shaped; The front and rear inner walls of the outer jacket coil (6) are connected to docking tenon blocks (12), and the front and rear surfaces of the mounting bracket (9) are provided with docking tenon grooves (8) adapted to the docking tenon blocks (12) and extending from the upper and lower surfaces of the mounting bracket (9); The butt joint block (12) is configured to be in the shape of an arc wave; The insulating jacket (61) is provided with a vent pipe (616) at both ends extending into the connecting groove (611) and the extension groove (613), respectively; one end of the vent pipe (616) located in the connecting groove (611) penetrates into the connecting air pump (612), and one end of the vent pipe (616) located in the extension groove (613) penetrates into the supporting air bag (615); A wire core (62) is disposed in the insulating jacket (61), and four contact arc plates (63) are disposed on the outer surfaces of the wire core (62). A plurality of elastic support frames (64) are connected to the surface of the contact arc plates (63) on one side facing away from the wire core (62), and the other end of the elastic support frames (64) are connected to the inner wall of the insulating jacket (61). An insulating filler (65) is filled between the inner cavity of the jacket coil (6) and the elastic support frames (64).

2. The line reactor for effectively reducing noise according to claim 1, characterized in that: Conductive terminals (5) are provided on the right surfaces of the upper contact plate (3) and the lower contact plate (4); an iron core (11) is embedded on the mounting bracket (9) and the upper and lower ends are respectively connected to the upper contact plate (3) and the lower contact plate (4); screw rods (10) are provided at the four corners of the mounting bracket (9) and the upper and lower ends extend from the upper contact plate (3) and the lower contact plate (4), respectively; the screw rods (10) are respectively threadedly connected to the upper contact plate (3) and the lower contact plate (4), and nuts are provided on the two ends extending from the screw rods (10).

3. The line reactor for effectively reducing noise according to claim 2, characterized in that: Two movable grooves (619) are provided on the inner walls on the front and rear sides of the connection groove (611); the connection structures in the two movable grooves (619) are identical and are arranged in a mirror image; a rotating block (620) is connected to the inner wall at the bottom of the movable groove (619); and a contact plate (621) is rotatably connected to the rotating block (620).

4. The line reactor for effectively reducing noise according to claim 3, characterized in that: The insulating jacket (61) is provided with an internal cavity (622) at the same vertical position as the movable groove (619), a piston (623) is slidably connected to the internal cavity (622), a control rod (624) is connected to the lower surface of the piston (623), the lower end of which penetrates into the movable groove (619) and is slidably connected to the inner wall of the insulating jacket (61), and one end of the control rod (624) located in the movable groove (619) is connected to a movable sleeve connected to the contact plate (621). ) is away from the limiting ring (625) on one end of the connecting air pump (612), the lower surface of the piston (623) is connected to a return spring (626) which is movably sleeved on the control pull rod (624) and the lower end of which is connected to the inner wall of the bottom of the built-in cavity (622), and the connecting air pump (612) is connected to a connecting pipe (627) whose other end extends into the built-in cavity (622), and one end of the connecting pipe (627) extending into the built-in cavity (622) is located below the piston (623).

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