KR100559145B1 - Isolator - Google Patents

Abstract

The present invention relates to an isolator, which is an irreversible transmission circuit element, comprising an isolator housing and a disc ring-shaped pole piece and a disc ring cover, a disc-shaped pole piece, which are made of a conductor and have a through hole into which the external magnetic force adjusting means can be inserted into the base bottom. The first and second ferrite resonators and permanent magnets may be manufactured in any shape, and the pole pieces, the first ferrite resonator and the center conductor, the second ferrite resonator, pole pieces and the permanent magnets may be in any shape in the storage space of the isolator housing. The cover, which is arranged and made of a disc ring type, is fixed to the isolator housing, so that the remaining parts except for the external magnetic control means are firmly finished and then the external magnetic force adjusting means is properly inserted into each hole of the isolator housing, the pole piece and the isolator cover. Therefore, it is possible to perform magnetic reinforcement or magnetic control on the center after assembly. Since the product can be tuned to improve the mass productivity by providing an irreversible transmission features affordable price.

Isolator, circulator

Description

Isolator {ISOLATOR}

1 is a partial exploded perspective view showing an example of a conventional isolator;

FIG. 2 is an assembled cross-sectional view of the isolator shown in FIG. 1; FIG.

3 is a partial partial perspective view showing another example of a conventional isolator;

4 is an assembled cross-sectional view of the isolator shown in FIG.

5 is a partial partial perspective view of the isolator according to the present invention;

6 is an assembled cross-sectional view of the isolator shown in FIG.

7 is a partial partial perspective view showing another example of the isolator according to the present invention;

FIG. 8 is an assembled sectional view of the isolator shown in FIG.

-Explanation of terms for the main parts of the accompanying drawings-

100; Isolator housing, o o 100a; Thread, o o o o100; Base,

110a; Resistor seating groove, o o110b; Housing fastening groove,

120a, 120b, 120c; Outer shell projection, o o o 200; 1st resonator,

40; Center conductor, o o o 41; Input terminal part, o o o o 42; output terminal part,

43; Register terminal portion, o o o 400; Second resonator, o o o 500,600; Permanent Magnet,

51,52,53; disc shaped pole piece, o o 54; Disc ring pole piece, o o o o 70; disc ring cover,

71; Threads, o o o o 91,92; external magnetic force control means, o o 8; register,

H10; Storage space, o 81,82,84; Through hole for external magnetic force control means,

H20; Input terminal exposed space, o o H30; Output terminal exposed space,

H40; Register terminal exposed space,

The present invention relates to an isolator, and after assembling the product, by inserting external magnetic control means into each hole of the isolator housing, the pole piece and the isolator cover, the magnetic properties can be adjusted, the mass production is improved, and the central magnetic strength is effectively reinforced. It relates to an isolator whose function is to be improved due to the formation of a magnetic field environment.

The isolator used in the radio wave transmission system is said to be an irreversible transmission circuit element because of the characteristic that electromagnetic wave transmission is performed in one direction of the transmission line, but electromagnetic wave transmission in the opposite direction is suppressed.

This isolator uses the large Faraday rotation angle of the magnetic material, which uses the phenomenon of one-way rotation by the internal magnetic field and the electromagnetic Faraday rotational motion in the magnetic body in a given DC magnetic field. Will be visible.

The isolator includes: a center conductor which is a radio wave transmission medium of a conductor material; First and second resonators of ferrite material for resonating the radio waves flowing through the center conductor while wrapping the center conductor in a sandwich form; Permanent magnets for supplying magnetic force to the first and second resonators; A pole piece made of a magnetic material which is magnetized by a permanent magnet and transmits a uniform magnetic force to the first and second resonators; An isolator housing of conductor material in which these components are housed; A cover made of a conductive material that maintains a constant magnetic field formed around the center conductor while compressing and sealing components in the isolator housing; It consists of a resistor that converts the reflected radio waves from the center conductor into thermal energy and radiates heat to the outside.

To explain this in detail, since the magnetic force from the permanent magnet is uniformly transmitted to the first and second resonators through the pole piece, a constant magnetic field is formed in the first and second resonators and the center conductor has three terminals at an angle of 120 degrees. Radio waves are rotated in one direction. In this state, when the radio wave is applied to one terminal of the center conductor, the output terminal of the center conductor in which the radio wave is located at an angle of 120 degrees in one direction with respect to the input terminal by the Faraday rotation angle effect by the first and second resonators. Will flow only. On the other hand, the reflected wave reflected from the output terminal of the center conductor is led to a resistor terminal located at 120 degrees in the same direction with respect to the output terminal and located at 240 degrees from the input terminal. Unnecessary radio waves reflected from the terminal are transmitted to the input terminal located at 120 degrees in the same direction from the register terminal and 360 degrees from the input terminal, and the reflected radio wave is suppressed at the output terminal as much as the energy consumed from the register terminal and then transmitted. Isolation from terminal to input terminal is implemented.

In addition to the technological development, isolators are also being researched in various ways to improve the irreversible transmission characteristics, increase the low cost, improve the mass productivity, and reduce the volume, some of which are already widely used.

1 and 2, the isolator housing 100 is made of a nonmagnetic material or a magnetic material, has a resistor mounting portion 110b, and has three arc-shaped accommodating portions 120a and 120b that are bent outward while forming the same radius of curvature. 120c protrudes upward from the base 110 at random intervals to each other, and has a circular housing space H10 opened upward, an input / output terminal exposed space H20 and H30 opened laterally, and The register terminal part has a structure in which the exposed space H40 is formed. In addition, the pole pieces (51, 52, 53, 54) and the curve 70 is made of a conductive magnetic material in the shape of a disc, the diameter of which is to accommodate the insertion space (10) in close contact with the storage space (H10) in consideration of the tolerance ( While slightly smaller than the inner diameter of H10, the first and second resonators 12 and 14 are manufactured in the form of a plate of approximately triangular shape in its entirety. In addition, the permanent magnets (161, 162, 163) are made of three separate objects, so that the permanent magnets (161, 162, 163) is fitted between each side portion of the first and second resonators (12, 14) and the inner peripheral surface of the storage space (H10) to be in close contact. The inner side is straight and the outer side is made arc. On the other hand, the center conductor 40 is manufactured in the form of a plate of approximately Y shape, each end thereof is an input terminal portion 41, an output terminal portion 42 and a register terminal portion 43.

In the assembly operation thereof, first of all, the pole pieces 51, 53, 54 are placed on a flat floor, and the first resonator 12 is placed on the pole pieces 51 with the center thereof. The input and output terminal portions 41 and 42 and the register terminal exposure space H40 are positioned at the corners of the first resonator 12 so that the centers are exposed to the corresponding exposure spaces H20, H30 and H40 of the isolator housing 100. The conductors 40 are stacked, and the second resonator 14 is stacked thereon so as to correspond to the first resonator 12, and another pole piece 52 and the cover 70 are stacked on the second resonator 14. After placing them in order, and fixing them by applying a force in the vertical direction, the permanent magnets (161, 162, 163) are fixed between the sides of the first and second resonators (12, 14) and the inner circumferential surface of each pole piece (51, 52). Permanent magnets (161, 162, 163) are inserted from the side. At this time, the thickness of the permanent magnets (161, 162, 163) is slightly smaller than the total thickness of the sum of the thickness of the first and second resonators (12, 14) and the center conductor (40). The assembled insert may be exposed to the corresponding exposure spaces H20, H30, and H40 of the isolator housing 100 by the input / output terminal portions 41 and 42 and the register terminal exposure space H40 of the center conductor 40. 8) After inserting into the housing 100 bonded to the register housing portion 110a, the ends of the receiving portions 120a, 120b, 120c protruding upward of the cover 70 are pressed by a press, so that the cover 70 is pressed. It is pressed firmly by a predetermined pressure by the front end of the receiving portion (120a, 120b, 120c) bent inwardly. After that, the electrical connection between the resistor connecting portion 43 and the resistor 8 is made (see Fig. 2).

According to this embodiment, since the permanent magnets (161, 162, 163) are disposed laterally in contact with the sides of the first and second resonators (12, 14) forming a triangular plate form, the overall thickness of the isolator is thinned There is this.

However, according to the present embodiment, the first and second resonators 12 and 14 are directly magnetized by the permanent magnets 161, 162 and 163 disposed in the lateral direction thereof, and are disposed outside the center conductor 40 so as to be permanent. Since it is indirectly magnetized by the pole pieces 51, 52, 53 and 54 magnetized by the magnets 161, 162 and 163, the magnetic force by the first and second resonators 12 and 14 is weakly formed at the center and uniform over the entire surface. Since this is not possible to occur, the problem that the irreversible transmission function is degraded.

Furthermore, in the present embodiment, the thickness of the permanent magnets 161, 162, 163 is slightly smaller than the total thickness of the sum of the thicknesses of the first and second resonators 12, 14 and the center conductor 40. Due to the deviation of magnetic force easily caused by the difference in the magnetic strength of the product after the finished product, frequent occurrence of defective products occurs, and there is no mass control means after assembly of the product, which leads to a problem that the productivity is lowered due to lack of mass productivity, resulting in a unit price increase. .

In addition, according to Figures 3 and 4 presented to improve the magnetic uniformity, the first conductor of the ferrite material to resonate the radio waves flowing through the center conductor 40 while wrapping the center conductor 40, which is a conductor transmission medium of the conductor material, in the form of a sandwich Two resonators 200,400; Permanent magnets 500 and 600 for supplying magnetic force to the first and second resonators 200 and 400; Pole pieces 51, 52, 53, and 54 made of a magnetic material which are magnetized by the permanent magnets 500 and 600 and transmit a uniform magnetic force to the first and second resonators 200 and 400; The housing parts 120a, 120b, and 120c protrude upward from the base 110 at random intervals, and have a circular housing space H10 opened upward, and an input / output terminal exposed space opened laterally. An isolator housing 100 made of a conductive magnetic material in which the H20 and H30 and the resistor terminal exposed space H40 and the resistor seat 110a and the fastening through hole 110b are formed; Conductive magnetic material that maintains the magnetic field environment formed around the center conductor 40 while sealing the components 54, 600, 51, 200, 40, 400, 52, 500, and 53 installed in the storage space H10 of the isolator housing 100. Cover 70 and; The return wave from the center conductor 40 is converted into thermal energy to form a structure composed of a resistor 8 for radiating heat to the outside.

According to the present embodiment, the isolator housing 100 is made of a conductive magnetic material while being integrally formed on the base 110 in the receiving parts 120a, 120b, and 120c, and the first and second resonators 200 and 400 and the permanent magnet. (500,600), pole pieces (51, 52, 53, 54) and the cover 70 is manufactured in a disc shape, the pole piece 54, the permanent magnet 600 in the storage space (H10) of the isolator housing 100 The pole piece 51, the first resonator 200 and the center conductor 40, the second resonator 400, the pole piece 52 and the permanent magnet 500, the pole piece 53 are sequentially stacked, The cover 70 is fixed to the isolator housing 100 while surrounding the upper surface of the laminated component. The diameters of the disk-shaped components 54, 600, 51, 200, 40, 400, 52, 500, 53, 70 are made slightly smaller so that these components can be easily inserted into the receiving space H10.

Since the isolator housing 100 is made of a magnetic material and the entire isolator housing 100 is magnetized by the permanent magnets 500 and 600, the permanent magnets 500 and 600 may be inserted even if a separate pole piece is not inserted into the bottom of the first resonator 200. The magnetic force from the uniform magnetic force is applied to the first resonator 200 through the isolator housing 100. In addition, the magnetic force from the permanent magnets 500 and 600 is applied indirectly and uniformly to the second resonator 400 through the pole pieces 51, 52, 53, 54 and the isolator housing 100.

Therefore, all parts except the lateral exposure spaces H20, H30, and H40 of the isolator space 100, i.e., the isolator housing 100, are kept in a magnetized state, so that the center conductor 40 and the first and second parts are maintained. An effective magnetic field environment is created around the resonators 200 and 400. In addition, since the magnetic force from the permanent magnets 500 and 600 is uniformly applied through the isolator housing 100 and the pole pieces 51, 52, 53, and 54, the irreversible transmission function of the isolator is greatly improved.

The thread 71 is formed on the outer circumferential surface of the cover 70 and the corresponding thread 100a is formed on the inner circumferential surface of the upper ends of the accommodating parts 120a, 120b, and 120c of the isolator housing 100, so that the cover 70 is formed. It is detachably fastened to the accommodating parts 120a, 120b, and 120c of the isolator housing 100 (see Fig. 4).

However, even in the present embodiment, the deviation of the magnetic force due to the deviation of the permanent magnet (500,600) is easily generated, and the defective product frequently occurs due to the difference in the magnetic strength of the finished product after the finished product, and there is no external magnetic control means after assembly of the product. As a result, there is a problem that productivity is greatly reduced, resulting in a price increase.

Therefore, the present invention was invented to solve the above problems, and after fixing each part to the receiving portion of the isolator housing, the magnetic force adjusting means is attached to the outermost portion to adjust the magnetic properties, and the mass production is improved. The aim is to provide an isolator whose function is to be improved by creating an effective magnetic environment by reinforcing magnetic field strength.

The present invention for achieving the above object, and the center conductor which is a radio wave transmission medium of a conductor material; A permanent magnet of any type for supplying magnetic force to the first and second resonators made of ferrite and the first and second resonators, which resonate the radio waves flowing through the center conductor while wrapping the center conductor in a sandwich form; A disc-shaped pole piece made of a conductive magnetic material having a through-hole for inserting a magnetic pole adjusting member and a disc-shaped pole piece of a conductive magnetic material which is magnetized by a permanent magnet to transmit a uniform magnetic force to the first and second resonators; Three accommodating portions are projected upward from the base while forming the same radius of curvature, and a circular accommodating space is opened upward, and an input / output terminal exposing space opened laterally and a register terminal exposing space are formed. An isolator housing having a through hole through which the magnetic force adjusting means can be inserted into the base bottom; A cover made of a disk-shaped ring having a through hole into which the magnetic force adjusting means can be inserted; Disc-shaped magnetic force control means made of magnetic material and permanent magnet; In the isolator comprising a resistor that converts the return wave from the center conductor into heat energy and radiates heat to the outside, a pole piece, a first ferrite resonator and a center conductor, a second ferrite resonator, a pole piece, and a permanent magnet are provided in a storage space of the isolator housing. Arranged in an arbitrary shape and the cover is secured to the housing by any means while sealing the components contained in the storage space of the isolator housing, and firmly finishing and fixing the remaining parts except the magnetic force control means, and then the isolator housing, the pole piece and the isolator cover. Each hole of the magnetic force control means has a structure that is characterized in that it is properly attached and fixed.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

5 and 8 are diagrams illustrating an isolator according to the present invention, and the description thereof will be omitted while attaching the same reference numerals to the same parts as in FIGS. 1 to 4 showing the prior art.

5 and 6, the isolator housing 100 is made of a nonmagnetic material or a magnetic material and is manufactured with a hole 83 into which the magnetic force regulating means 92 can be inserted, and has a resistor mounting portion 110b. Circular accommodating space (H10), which has three arc-shaped accommodating parts 120a, 120b, and 120c curved outward while forming the same curvature radius, protrudes upward from the base 110 at random intervals, and opens upward. ), And the input / output terminal portion exposing spaces H20 and H30 and the register terminal portion exposing space H40 opened laterally. In addition, the pole pieces (51, 52, 53) is made of a conductive magnetic material in the shape of a disc, the diameter of which is slightly smaller than the inner diameter of the storage space (H10) to be inserted in close contact with the storage space (H10) in consideration of tolerances. Meanwhile, a disc ring-shaped cover 70 having a disc-shaped pole piece 54 having a hole 82 into which the magnetic force adjusting means 92 can be inserted and a hole 81 into which the magnetic force adjusting means 91 can be inserted. The first and second resonators 12 and 14 are manufactured in the form of a plate of approximately triangular shape in its entirety. In addition, the permanent magnets (161, 162, 163) are made of three separate objects, so that the permanent magnets (161, 162, 163) is fitted between each side portion of the first and second resonators (12, 14) and the inner peripheral surface of the storage space (H10) to be in close contact. The inner side is straight and the outer side is made arc. On the other hand, the center conductor 40 is manufactured in the form of a plate of approximately Y shape, each end thereof is an input terminal portion 41, an output terminal portion 42 and a register terminal portion 43. The number of registers (8) is such that the input / output terminal portions (41, 42) and the register terminal exposure space (H40) of the center conductor (40) are exposed to the corresponding exposure spaces (H20, H30, H40) of the isolator housing (100). After inserting into the housing 100 bonded to the soldering part 11a, the front end of the accommodating parts 120a, 120b, and 120c protruding from the upper part of the cover 70 is pressed by a press, so that the cover 70 is bent inwardly. It is to be firmly fixed while being pressed at a predetermined pressure by the tip of the payment (120a, 120b, 120c). After that, the electrical connection between the resistor connecting portion 43 and the resistor 8 is achieved. Thereafter, the magnetic force regulating means (91,92) made of magnetic material or nonmagnetic material is properly inserted into and fixed to the insertion holes (81, 82, 83) of the housing (100), the pole piece (54) and the cover (70). (See Fig. 6).

7 and 8, the isolator according to the present invention is a ferrite material which resonates radio waves flowing through the center conductor 40 while sandwiching the center conductor 40, which is a conductor transmission medium, in a sandwich form. Two resonators 200 and 400; Permanent magnets 500 and 600 for supplying magnetic force to the first and second resonators 200 and 400; Disc-shaped pole pieces 51, 52 and 53 magnetized by the permanent magnets 500 and 600 and having holes for inserting a magnetic force control means of a magnetic material that transmits a uniform magnetic force to the first and second resonators 200 and 400; A disc ring-shaped pole piece 54 having a hole 82 which is magnetized by the permanent magnets 500 and 600 to insert a magnetic force control means of a magnetic material that transmits a uniform magnetic force to the first and second resonators 200 and 400; Three accommodating portions 120a, 120b, and 120c are formed at the same radius of curvature, protruding upward from the base 110 at random intervals, and have a circular accommodating space H10 opened upward, and laterally open. The isolator housing 100 is provided with the input / output terminal exposed spaces H20 and H30 and the register terminal exposed spaces H40 and a through hole 83 into which the magnetic force adjusting means 92 can be inserted into the base bottom. ; While pressing and sealing the components 54,600, 51, 200, 400, 52, 500, and 53 installed in the storage space H10 of the isolator housing 100, the magnetic field control means is maintained while maintaining a constant magnetic environment formed around the center conductor 40. A disc-shaped cover 70 made of a magnetic material having a hole 81 into which a hole 91 can be inserted; The return wave from the center conductor 40 is converted into thermal energy to form a structure composed of a resistor 8 for radiating heat to the outside.

It should be noted that the isolator housing 100 has a through hole 83 into which the accommodating parts 120a, 120b, and 120c are integrally formed or connected to the base 110 so as to insert the magnetic force adjusting means 92. The pole piece 54 is made of a disc ring, and the cover 70 is made of a disc ring so as to be formed in the accommodating part, and is formed in the accommodating space H10 of the isolator housing 100. The first resonator 200, the center conductor 40, the second resonator 400, the pole pieces 51, 52, 53, and the permanent magnets 500, 600 are arbitrarily disposed, and the cover 70 covers the upper surfaces of the components. It is characterized in that it is fixed to the isolator housing 100 by the threads 71 and 100a. The diameters of the disc and disc ring components 54, 600, 51, 200, 400, 52, 500, 53 and 70 are made slightly smaller so that these components can be inserted into the receiving space H10.

According to the present invention shown in Figs. 5 to 8, the isolator housing 100, the pole piece 54, the through holes 81, 82, 83 for insertion of the magnetic force adjusting means 91, 92 formed in the cover 70. By assembling the product, the magnetic force can be added by the proper insertion of the magnetic force control means. Therefore, the edge magnetic force by the edge effect of the permanent magnet and the edge reinforcement effect of the magnetic force provided by the pole piece can be added. It can be offset, and in particular, it can compensate for the extreme edge magnetic strengthening effect in the arrangement of the side permanent magnet can improve the irreversible transmission function can be more uniform uniform magnetic force of the first resonator and the second resonator.

Alternatively, the appropriate adjustment and insertion of the magnetic force control means freely adjusts the applied strength of the magnetic force, enabling tuning to compensate for the defects in the isolator characteristics due to the strength deviation of the permanent magnet inserted into the unit. do.

On the other hand, the disc-shaped pole piece (51, 52, 53) and the disc ring-shaped pole piece 54 having a hole capable of having a magnetic force control means may be reinforced in an appropriate position depending on the size and capacity of the transmission frequency, magnetic force control Of course, the housing 100 and the disc shaped cover 70 having a hole into which the means can be inserted can be applied independently or simultaneously.

According to the present invention as described above, the isolator housing is made of a conductor, having a through-hole for inserting the magnetic force control means on the base bottom, a disc-shaped pole piece for magnetic force equalization, the penetration through which the magnetic force control means can be inserted. Circular ring-shaped pole piece with holes, circular ring-type cover with through-holes for inserting the magnetic force control means, the first and second ferrite resonators and permanent magnets are manufactured in any form, and the pole piece in the storage space of the isolator housing, The first ferrite resonator, the center conductor, the second ferrite resonator, the pole piece and the permanent magnet are arranged in an arbitrary shape, and the cover made of a disc ring is fixed to the isolator housing, so that the remaining parts except the magnetic force adjusting means are firmly finished. After fixing, properly adjust the magnetic force control means in each hole of the isolator housing, the pole piece and the isolator cover. By inserting, it is possible to perform magnetic reinforcement or magnetic control on the center after assembly, so that the product can be tuned and mass production is improved.

The present invention is not limited to the above embodiments, and of course, various modifications can be made without departing from the scope of the following claims.

Claims (1)

A center conductor, which is a conductor of a conductor material; A first and second resonator made of a ferrite material for resonating radio waves flowing through the center conductor while wrapping the center conductor in a sandwich form; Permanent magnets for supplying magnetic force to the first and second resonators; A pole piece which is magnetized by the permanent magnet to transmit a uniform magnetic force to the first and second resonators; The same radius of curvature has three housing portions projecting upward from the base at random intervals to form a circular storage space opened upward, and an input / output terminal exposed space opened laterally and a register terminal exposed space. Isolator housings; A cover made of a magnetic material which seals the components in the storage space of the isolator housing and keeps the magnetic field environment formed around the center conductor constant; An isolator comprising a resistor that converts return radio waves from a center conductor into thermal energy and radiates heat to the outside. The isolator housing has a through-hole formed in which the external magnetic force regulating means can be inserted into the receiving portion of the base, and is made of a magnetic material or a non-magnetic material, and the pole piece for magnetic homogenization is made into a disc shape, and the external magnetic force control is performed. The pole piece and the cover are made of a disc ring to form a through hole through which the means can be inserted, and the disc and disc ring pole pieces, the first resonator and the center conductor, the second resonator, the disc and the disc are formed in the storage space of the isolator housing. An isolator characterized in that a ring-shaped pole piece and a permanent magnet are arbitrarily arranged, and the disc-shaped cover is fixedly assembled to the isolator housing so as to compress and fix the components, and then the external magnetic force adjusting means is attached to the through-holes.

Images