A kind of interleaved reactance filter

Abstract

The present invention relates to the technical field of electrical equipment, and specifically to an interleaved reactance filter, which comprises a wound conductor, a wide winding frame, a narrow winding frame, a cavity heat dissipation fin, an adjustment mechanism and a fixed magnetic core; the wound conductor, the wide winding frame, the narrow winding frame, the cavity heat dissipation fin, the adjustment mechanism and the fixed magnetic core; the operator first winds the wound conductor on the wide winding frame, separates the wound conductor, interlaces and independently winds several conductors on other narrow winding frames, effectively improves electromagnetic compatibility, and at the same time, the adjustment mechanism can assist in adjusting the inductance parameters in the structure, so that the device with the cavity heat dissipation fin has a better heat dissipation effect and a misalignment prevention effect, has good practicality and economy, and is beneficial to the promotion and use of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an interleaved reactance filter. Background Art

[0002] Reactors are mainly used to suppress power fluctuations and electromagnetic interference, stabilize voltage and filter noise to ensure stable operation of equipment and patient safety. With the improvement of medical standards, the number of electronic components in medical devices has gradually increased, and the requirements for electromagnetic compatibility (EMC) and efficient heat dissipation safety of reactors have become more stringent. Currently, existing reactors are made of a separate skeleton with fixed inductance parameters, which is not conducive to maintaining efficiency in complex electromagnetic environments and heat volatilization in high-density component heat dissipation spaces, and the effect is not good. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention aims to provide an interleaved reactance filter which can effectively reduce electromagnetic interference, match different required inductance parameters and have efficient heat dissipation effect.

[0004] The technical solution adopted by the present invention is: an interleaved reactance filter, comprising

[0005] A convoluted wire, wherein the convoluted wire comprises a wire 1, a wire 2, a wire 3, and a wire 4;

[0006] A wide winding skeleton, the wide winding skeleton presents a rectangular hollow cavity, and the wide winding skeleton is symmetrically arranged in two groups; the wire one and the wire two are grouped into a first wire group, and the wire three and the wire four are grouped into a second wire group, the wires of the first wire group are sequentially stacked and wound around the outer side of the wide winding skeleton (51), and the wires of the second wire group are sequentially stacked and wound around the outer side of another wide winding skeleton (51), the first wire group and the second wire group are both provided with two groups of narrow winding skeletons at the outlet ends of the wide winding skeleton, and the narrow winding skeleton also presents a rectangular hollow cavity, and any independent wire of the wound wire is individually wound around the narrow winding skeleton, and the wires wound around adjacent narrow winding skeletons are not from the same wire group;

[0007] A fixed magnetic core, the fixed magnetic core includes a snap-on magnetic core, the snap-on magnetic core presents a C-shaped structure, and a plurality of snap-on magnetic cores are symmetrically provided at both ends of the two groups of wide winding skeletons and the two adjacent groups of narrow winding skeletons for snap-on connection, and the ends of the snap-on magnetic cores pass into the central cavities of the wide winding skeleton and the narrow winding skeleton.

[0008] In one embodiment, the convoluted wire is made of a plurality of independent wire bundle rectangular arrays, and connection terminals are provided at both ends of the convoluted wire.

[0009] In one embodiment, a plurality of evenly distributed split-end magnetic cores are provided between the ends of the symmetrically connected magnetic cores. The split-end magnetic cores are arranged in the cavity of the wide winding frame or the narrow winding frame. Air gaps are provided on both sides of the split-end magnetic cores to maintain independent isolation.

[0010] In one embodiment, the outer sides of the two groups of the wide winding skeletons or the narrow winding skeletons are provided with fixing straps, the fixing straps are movably adjustable and fixed, and the magnetic core is arranged in the restraining space of the fixing straps.

[0011] In one embodiment, two groups of meshing triangular blocks are provided in the air gap. The meshing triangular blocks are axially symmetrically arranged in a right-angled triangular cube structure, whose inclined surfaces abut against each other, and a limiting plate is provided at the tip of the meshing triangular block.

[0012] In one embodiment, a plurality of the limit plates are provided with movable tension bars away from the flared ends of the meshing triangle blocks, and staggered connection ends are provided at right angles to the limit plates and the movable tension bars. A plurality of the staggered connection ends are staggered and connected to the side faces of the movable tension bars. An adjustment tooth mark is provided on the side of the movable tension bar away from the staggered connection ends, and the movable tension bar passes through the gap left between the buckled magnetic core and the wide winding frame or the narrow winding frame.

[0013] In one embodiment, a fixing block is provided on the wide winding skeleton and the narrow winding skeleton, and an adjustment mechanism is provided on the fixing block. The adjustment mechanism includes an adjustment bolt, and the tooth surface of the adjustment bolt engages with the adjustment tooth mark.

[0014] In one embodiment, a cavity heat dissipation fin is provided between turns of the wire bundle independently wound around the narrow winding skeleton, the cavity heat dissipation fin is connected to the narrow winding skeleton, a cavity of the same type is provided inside the cavity heat dissipation fin, and a heat transfer fluid is provided inside the cavity.

[0015] In one embodiment, the cavity heat dissipation fin is rectangular, circular, or a T-shaped structure with one end being a flared end.

[0016] In one embodiment, a plurality of ventilation openings are provided on the outer periphery of the wide winding frame and the narrow winding frame.

[0017] The beneficial effects of the present invention are as follows: the present invention is an interleaved reactance filter that effectively reduces electromagnetic interference, can match different required inductance parameters, and has an efficient heat dissipation effect. The specific implementation contents are as follows:

[0018] The operator first divides the required winding wires into independent wires 1, 2, 3 and 4. After selecting the second wire to overlap and wind it around a wide winding frame, the wire harness is wound onto the wide winding frame, and the other two groups of wires are wound onto the wide winding frame in the same way. After that, the outlet ends of the two adjacent wires are provided with two groups of narrow winding frames. At this time, one group of wires in the two adjacent wires needs to be staggered and wound to one of the wide winding frames provided at the outlet ends of the other two adjacent wires. The remaining wires continue to be wound around the nearest wide winding frame to complete the winding process of the wires. The cross-winding of the wires can adjust the reactor to be connected in two stages, the first stage is conventionally discrete, and the latter stage is staggered and filtered to improve electromagnetic compatibility.

[0019] At the same time, since the distance between the ends of the buckled cores in the fixed core affects the utilization efficiency, a multi-component end core is set between the ends so that the air gap is segmented and the gap space is expanded, which effectively reduces the eddy current loss while improving the heat dissipation capacity and reducing the loss.

[0020] In order to ensure that different inductance parameters are obtained in different usage scenarios, when using it, first loosen the fixing tie, and cooperate with the adjustment bolt and precise twisting equipment such as an electronic drill to accurately pull the movable tension bar to reduce the contact surface of the meshing triangle block and expand the width between the split-end magnetic cores, thereby changing the distance of the air gap and assisting in adjusting the inductance parameters. At the same time, since the movable tension bar is pulled on one side, in order to ensure that the tension of each misaligned connection end is uniform, the positions of the misaligned connection ends are misaligned with each other, so that the tension of the movable tension bar can be directly positioned to the misaligned connection end, avoiding the reduction of the tension displacement of the misaligned connection end at the end. After that, it can be fixed with a fixing tie to adjust the size of the air gap and complete the adjustment of the inductance parameters.

[0021] In order to maintain the heat dissipation capacity of the narrow winding skeleton and prevent the wire from being loose due to the overlapping winding position, cavity heat dissipation fins are set up between the turns of the wound wire. The cavity heat dissipation fins are provided with thermal conductive liquid. When the equipment generates heat, the thermal conductive liquid evaporates and absorbs heat. The air circulation between the equipment causes the thermal conductive liquid at the end of the cavity heat dissipation fins to condense, completing the heat dissipation and effectively solving the heating problem of the equipment. At the same time, the wires are constrained to avoid looseness affecting the use effect.

[0022] The device has a simple structure. By connecting the two stages of the reactor and setting an intermittent air gap, the front stage is conventionally discrete, and the back stage is interleaved filtering, which improves electromagnetic compatibility, effectively suppresses power supply fluctuations and electromagnetic interference, ensures the normal operation of medical equipment in complex electromagnetic environments, reduces power consumption, reduces heat generation during equipment operation, and extends equipment life, thereby ensuring the safety of patients and medical staff. It has good practicality and economy, and is beneficial to the promotion and use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of a partially exploded three-dimensional structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the convoluted wire of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the narrow winding skeleton of the present invention;

[0029] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the narrow winding skeleton part of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixed magnetic core of the present invention;

[0031] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the fixed magnetic core of the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the meshing triangular block of the present invention.

[0033] Description of the drawings: 1. Wire one; 2. Wire two; 3. Wire three; 4. Wire four; 51. Wide winding skeleton; 52. Narrow winding skeleton; 521. Fixed block; 6. Cavity heat dissipation fin; 7. Adjustment mechanism; 71. Adjustment bolt; 72. Movable tension bar; 721. Adjustment tooth mark; 731. Offset connection end; 74. Engaging triangle block; 741. Limiting plate; 8. Fixed magnetic core; 81. Buckled magnetic core; 82. Split-end magnetic core; 821. Air gap; 83. Fixed tie; 9. Terminal block. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0036] Combine the following Figure 1-9 The specific embodiment of the present invention is described, an interleaved reactance filter comprises

[0037] Reference Figure 1 , 2 4, the winding wire includes a wire 1, a wire 2, a wire 3 and a wire 4, the winding wire is made of a plurality of independent wire bundle rectangular arrays, which can be one, two, or multiples of two, and the two ends of the winding wire are provided with terminal blocks 9 for easy wiring and fixing;

[0038] Reference Figure 3 , 5 As shown, a wide winding skeleton 51 presents a rectangular hollow cavity, and the wide winding skeleton 51 is symmetrically arranged in two groups; the wire 1 and the wire 2 are grouped into a first wire group, and the wire 3 and the wire 4 are grouped into a second wire group. The wires of the first wire group and the second wire group are sequentially stacked and wound around the outer side of the wide winding skeleton 51. The first wire group and the second wire group are provided with two groups of narrow winding skeletons 52 at the outlet ends of the wide winding skeleton 51. The narrow winding skeleton 52 also presents a rectangular hollow cavity. Any independent wire of the wound wire is wound around the narrow winding skeleton 52 separately, and the wires wound around the adjacent narrow winding skeletons 52 are not in the same wire group.

[0039] Reference Figure 6 , 7 As shown, the fixed magnetic core 8 includes a snap-on magnetic core 81, which presents a C-shaped structure. A plurality of snap-on magnetic cores 81 are symmetrically provided at both ends of two groups of wide winding skeletons 51 and two adjacent groups of narrow winding skeletons 52 for snap-on connection, and the ends of the snap-on magnetic cores 81 are passed into the central cavities of the wide winding skeletons 51 and the narrow winding skeletons 52.

[0040] In practice, the front-end reactor is composed of a spirally wound wire and a wide winding skeleton 51, and the rear-end cross wire is spirally wound separately to form a rear-end reactor. The two groups of reactors are connected in two stages, the front stage is conventionally discrete, and the rear stage is staggered filtering, which effectively improves the filtering compatibility of different electromagnetic signals. At the same time, there is a gap between the two groups of buckled magnetic cores 81, and the change of the gap can also change the size of its inductance, and the eddy current loss can also improve the heat dissipation capacity.

[0041] Reference Figure 7As shown, beneficially, a plurality of evenly distributed split-end magnetic cores 82 are provided between the ends of the symmetrically connected magnetic core 81, and the split-end magnetic cores 82 are provided in the cavity of the wide winding skeleton 51 or the narrow winding skeleton 52, and air gaps 821 are provided on both sides of the split-end magnetic cores 82 to maintain independent isolation.

[0042] In practice, the gap between the buckled magnetic cores 81 is mainly controlled by the length of the ends of the buckled magnetic cores 81. In reality, the gap is relatively small, and the ends that are too long affect the heat dissipation and the variable control of the inductance parameters. By shortening the ends and adding a number of independent branch-end magnetic cores 82 in the gap, the air circulation area can be increased and the variable of the inductance parameters can be accurately controlled. Fixed ties 83 are provided on the outer sides of the two groups of wide winding skeletons 51 or narrow winding skeletons 52. The fixed ties 83 can be movably adjusted and fixed. The magnetic core is arranged in the constraint space of the fixed ties 83, and the fixed ties 83 are made of insulating material.

[0043] Reference Figure 8 , 9 As shown, at the same time, in order to accurately adjust the variable of the inductance parameter, two groups of meshing triangle blocks 74 are provided in the air gap 821. The meshing triangle blocks 74 are arranged in a right-angled triangular cube structure with axisymmetric arrangement, and their inclined surfaces abut each other. A limiting plate 741 is provided at the tip of the meshing triangle block 74. A plurality of limiting plates 741 are provided with movable tension bars 72 at the flared ends away from the meshing triangle blocks 74. The limiting plates 741 and the movable tension bars 72 are provided with staggered connection ends 731 at right angles. A plurality of staggered connection ends 731 are staggeredly connected to the side of the movable tension bars 72. The side of the movable tension bars 72 away from the staggered connection ends 731 is provided with an adjustment tooth mark 721. The movable tension bars 72 are buckled into the gap left by the magnetic core 81 and the wide winding skeleton 51 or the narrow winding skeleton 52.

[0044] In practice, pulling the active tension bar 72 can reduce the contact surface of the meshing triangle block 74 and expand the width between the branch end magnetic cores 82, thereby changing the distance of the air gap 821 and assisting in adjusting the inductance parameters. At the same time, since the active tension bar 72 is pulled on one side, in order to ensure that the tension of each offset connection end 731 is uniform, the positions of the offset connection ends 731 are offset from each other, so that the tension of the active tension bar 72 can be directly positioned to the offset connection end 731, thereby avoiding a reduction in the tension displacement of the offset connection end 731 at the end.

[0045] Advantageously, a fixed block 521 is provided on the wide winding skeleton 51 and the narrow winding skeleton 52, and an adjusting mechanism 7 is provided on the fixed block 521. The adjusting mechanism 7 includes an adjusting bolt 71, and the tooth surface of the adjusting bolt 71 engages with an adjusting tooth mark 721. The rotating adjusting bolt 71 can utilize the adjusting tooth mark 721 on the movable tension bar 72 to move the movable tension bar 72. If manual control is used, the accuracy may be affected. The adjusting bolt 71 is used in conjunction with a precise twisting device such as an electronic drill to precisely pull the movable tension bar 72, which has good practicality. At the same time, the adjusting tooth mark 721 can be an actively set engaging tooth mark or a passively suppressed engaging mark.

[0046] Beneficially, cavity heat dissipation fins 6 are provided between turns of the independently wound narrow winding skeleton 52, and the cavity heat dissipation fins 6 are connected to the narrow winding skeleton 52. The cavity heat dissipation fins 6 are mainly used to assist in heat dissipation between gates, and at the same time divide the turns to avoid misalignment of the wire harness affecting the use effect of the equipment. The same type of cavity is provided in the cavity heat dissipation fins 6, and a heat transfer fluid is provided in the cavity. The heat transfer fluid can achieve condensation and evaporation and other related effects in the ambient temperature changes with a small temperature difference within the use range of the equipment. It is an existing product, so it is not repeated here. The cavity heat dissipation fins 6 are rectangular, or circular, or a T-shaped structure with a flared end at one end. The larger the end, the better the heat dissipation effect.

[0047] Advantageously, a plurality of ventilation openings are provided on the outer periphery of the wide winding frame 51 and the narrow winding frame 52 to compensate for the structural weight of the cavity heat dissipation fins 6 and assist in heat dissipation.

[0048] Working principle of the present invention:

[0049] The operator first divides the required winding wires into independent wire 1, wire 2, wire 3, and wire 4. After selecting two wires, the wires are wound around the wide winding frame 51 in a way of overlapping and winding one circle, and the wire bundle is wound around the wide winding frame 51. The other two groups of wires are wound around the wide winding frame 51 in the same way. After that, the outlet ends of the two adjacent groups of wires are provided with two groups of narrow winding frames 52. At this time, one group of wires in the two adjacent groups of wires needs to be wound alternately to one of the wide winding frames 51 provided at the outlet ends of the other two adjacent groups of wires, and the remaining wires continue to be wound around the nearest wide winding frame 51 to complete the winding process of the wires. The cross-winding of the wires can adjust the reactor to be connected in two stages, the first stage is conventionally discrete, and the latter stage is staggered filtering to improve electromagnetic compatibility.

[0050] At the same time, since the distance of the gap between the ends of the buckled magnetic core 81 in the fixed magnetic core 8 affects the utilization efficiency, a multi-component end magnetic core 82 is set between the ends, so that the air gap 821 is set in sections to expand the gap space, effectively reducing eddy current losses while improving heat dissipation capacity and reducing losses.

[0051] In order to ensure that different inductance parameters are obtained in different usage scenarios, when in use, first loosen the fixing tie 83, cooperate with the adjustment bolt 71 and cooperate with a precise twisting device such as an electronic drill to accurately pull the movable tension bar 72, so that the contact surface of the meshing triangle block 74 is reduced, and the width between its branch end magnetic cores 82 is expanded, so as to change the distance of its air gap 821 and assist in adjusting the inductance parameters. At the same time, since the movable tension bar 72 is pulled on one side, in order to ensure that the tension of each misaligned connection end 731 is uniform, the positions of the misaligned connection ends 731 are misaligned with each other, so that the tension of the movable tension bar 72 can be directly positioned to the misaligned connection end 731, avoiding the reduction of the tension displacement of the misaligned connection end 731 at the end, and then the fixing tie 83 can be used to fix it, so as to adjust the size of the air gap 821 and complete the adjustment of the inductance parameters.

[0052] In order to maintain the heat dissipation capability of the narrow winding skeleton 52 and prevent the wire from being loose due to the overlapping winding position, a cavity heat dissipation fin 6 is set between the turns of the wound wire. The cavity heat dissipation fin 6 is provided with a thermal conductive liquid. When the device generates heat, the thermal conductive liquid evaporates and absorbs heat. The air circulation between the devices causes the thermal conductive liquid at the end of the cavity heat dissipation fin 6 to condense, completing the heat dissipation and effectively solving the heating problem of the device. At the same time, the wire is constrained to avoid looseness affecting the use effect.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The above contents are merely examples and explanations of the structure of the present invention. The technical personnel in the technical field of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. An interleaved reactance filter, characterized in that: include A convoluted wire, the convoluted wire comprising a wire one (1), a wire two (2), a wire three (3) and a wire four (4); A wide winding skeleton (51), the wide winding skeleton (51) presents a rectangular hollow cavity, the wide winding skeleton (51) is symmetrically arranged into two groups; the wire one (1) and the wire two (2) are grouped into a first wire group, the wire three (3) and the wire four (4) are grouped into a second wire group, the wires of the first wire group are sequentially stacked and wound around the outer side of the first group of wide winding skeletons (51), the wires of the second wire group are sequentially stacked and wound around the outer side of another group of wide winding skeletons (51), the first wire group and the second wire group are both provided with two groups of narrow winding skeletons (52) at the outlet ends of the wide winding skeleton (51), the narrow winding skeleton (52) also presents a rectangular hollow cavity, any independent wire of the wound wire is individually wound around the narrow winding skeleton (52), and the wires wound around adjacent narrow winding skeletons (52) are not from the same wire group; A fixed magnetic core (8), the fixed magnetic core (8) comprising a snap-on magnetic core (81), the snap-on magnetic core (81) presenting a C-shaped structure, a plurality of snap-on magnetic cores (81) being symmetrically provided at both ends of the two groups of wide winding skeletons (51) and the two adjacent groups of narrow winding skeletons (52) for snap-on connection, the ends of the snap-on magnetic cores (81) passing through the central cavities of the wide winding skeletons (51) and the narrow winding skeletons (52).

2. The interleaved reactance filter according to claim 1, characterized in that: The convoluted wire is made of a plurality of independent wire harness rectangular arrays, and connection terminals (9) are provided at both ends of the convoluted wire.

3. The interleaved reactance filter according to claim 1, characterized in that: A plurality of evenly distributed split-end magnetic cores (82) are provided between the ends of the symmetrically connected magnetic cores (81); the split-end magnetic cores (82) are arranged in the cavity of the wide winding skeleton (51) or the narrow winding skeleton (52); and air gaps (821) are provided on both sides of the split-end magnetic cores (82) to maintain independent isolation.

4. The interleaved reactance filter according to claim 3, characterized in that: A fixing tie (83) is provided on the outer side of the two groups of the wide winding skeletons (51) or the narrow winding skeletons (52); the fixing tie (83) can be movably adjusted and fixed, and the magnetic core is arranged in the restrained space of the fixing tie (83).

5. The interleaved reactance filter according to claim 3, characterized in that: Two groups of meshing triangular blocks (74) are arranged in the air gap (821). The meshing triangular blocks (74) are in the form of a right-angled triangular cube structure arranged axially symmetrically, with their inclined surfaces abutting against each other. A limiting plate (741) is provided at the tip of the meshing triangular block (74).

6. The interleaved reactance filter according to claim 5, characterized in that: A plurality of the limit plates (741) are provided with movable tension bars (72) at the flared ends away from the meshing triangle blocks (74); a staggered connection end (731) is provided at a right angle between the limit plates (741) and the movable tension bars (72); a plurality of the staggered connection ends (731) are staggeredly connected to the side of the movable tension bars (72); an adjustment tooth mark (721) is provided on one side of the movable tension bars (72) away from the staggered connection ends (731); and the movable tension bars (72) are passed through a gap between the buckled magnetic core (81) and the wide winding frame (51) or the narrow winding frame (52).

7. The interleaved reactance filter according to claim 6, characterized in that: The wide winding skeleton (51) and the narrow winding skeleton (52) are provided with a fixing block (521), the fixing block (521) is provided with an adjustment mechanism (7), the adjustment mechanism (7) comprises an adjustment bolt (71), and the tooth surface of the adjustment bolt (71) meshes with the adjustment tooth mark (721).

8. The interleaved reactance filter according to claim 1, characterized in that: A cavity heat dissipation fin (6) is provided between turns of the wire bundle independently wound around the narrow winding frame (52); the cavity heat dissipation fin (6) is connected to the narrow winding frame (52); a cavity of the same type is provided inside the cavity heat dissipation fin (6); and a heat transfer fluid is provided inside the cavity.

9. The interleaved reactance filter according to claim 8, characterized in that: The cavity heat dissipation fin plate (6) is rectangular, circular, or a T-shaped structure with one end being a flared end.

10. The interleaved reactance filter according to claim 1, characterized in that: A plurality of ventilation openings are provided on the outer sides of the wide winding frame (51) and the narrow winding frame (52).

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