A variable combination structure for filter arrangement

Abstract

The present invention discloses a variable combination structure for filter arrangement, comprising a first frame and a second frame, each of which is provided with two first frames, a plurality of inductor holders provided between the two first frames, a splicing block being clamped between the inductor holders and the first frames, an adjustment rod being installed between the first frame and the second frame, a grounding rod being provided between the second frame, a first pin plate being fixedly installed on the inner wall of the inductor holder, a third pin plate being fixedly installed on the inner wall of the first frame, the side walls of the first pin plate and the third pin plate being connected to the second pin plate via an adjustment rod, an inductor pin hole being provided at one end of the first pin plate close to the inductor holder, and capacitor pin holes being provided at the other end of the first pin plate, the second pin plate, and the third pin plate. Inductors of different sizes are connected between the inductor pin holes, and capacitors of different sizes are connected between the capacitor pin holes, so that the LC filter arrangement is compact and can be varied and combined to adapt to the installation of inductors and capacitors of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a variable combination structure for filter arrangement. Background Art

[0002] The filter can effectively filter out a specific frequency point in the power line or frequencies outside the frequency point to obtain a power signal of a specific frequency, or eliminate the power signal after a specific frequency. It is an important component of the receiver. The ideal intermediate frequency filter should have a completely flat passband, and all frequencies outside the passband are attenuated. The intermediate frequency filter can be composed of a plurality of LC filters. The LC filter mainly includes a plurality of inductor and capacitor parts. The inductor and capacitor arrangement structure of the traditional LC filter is loose, which is not conducive to miniaturization. In addition, when arranging the inductor and capacitor, the combination structure cannot be adjusted, which is not conducive to the arrangement of inductors and capacitors of different sizes. In response to the above problems, the inventors proposed a variable combination structure for filter arrangement to solve the above problems. Summary of the Invention

[0003] In order to solve the problems that the inductor and capacitor arrangement structure of the traditional LC filter is loose, which is not conducive to miniaturization, and the combined structure cannot be adjusted when arranging the inductor and capacitor, which is not conducive to the arrangement of inductors and capacitors of different sizes; the purpose of the present invention is to provide a variable combination structure for filter arrangement.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a variable combination structure for filter arrangement, including a first frame and a second frame, two of each of the first frame and the second frame, multiple groups of inductor seats are arranged between the two first frames, and a splicing block is clamped between the inductor seat and the first frame. An adjustment rod is installed between the first frame and the second frame, and a grounding rod is provided between the second frame. A first pin plate is fixedly installed on the inner wall of the inductor seat, and a third pin plate is fixedly installed on the inner wall of the first frame. The side walls of the first pin plate and the third pin plate are connected to the second pin plate through the adjustment rod. An inductor pin hole is opened at one end of the first pin plate close to the inductor seat, and capacitor pin holes are opened at the other end of the first pin plate, the second pin plate and the third pin plate.

[0005] Through the above technical solution, the length of the inductor seat can be adjusted, thereby adjusting the distance between the first pin plate, and the distance between the second pin plate and the first pin plate and the third pin plate is adjusted by the adjustment rod, so that inductors of different sizes are connected between the inductor pin holes, and capacitors of different sizes are connected between the capacitor pin holes, so that the LC filter is arranged compactly and can be changed in combination to adapt to the installation of inductors and capacitors of different sizes.

[0006] In a preferred implementation case, the first frame and the second frame are both L-shaped structures, and the two first frames and the second frame constitute the four corners of a rectangle, and port connection lines are fixedly provided through the two first frames, and the two port connection lines are respectively electrically connected to the two third pin boards.

[0007] In a preferred embodiment, the inductor base includes a first base body and a second base body, an adjustment rod is provided between adjacent surfaces of the first base body and the second base body, and a first pin plate is fixedly mounted on both the first base body and the second base body.

[0008] In a preferred embodiment, slots are provided on the outer wall of the end face of the first base body and the second base body away from each other, and on the outer wall of the end face of the first frame. The slots are T-shaped structures, and an I-shaped plate is clamped between two adjacent inductor seats and between adjacent inductor seats and the slots on the first frame. Countersunk screws are sleeved on both ends of the I-shaped plate, and the countersunk screws are threadedly connected to the inner wall of the slot.

[0009] Through the above technical solution, adjacent inductor holders and the inductor holders and the first frame are connected by means of I-shaped board card slots and fixed by countersunk bolts, so that different numbers of inductor holders can be installed according to needs. The distance between the first seat body and the second seat body of the inductor holder is adjusted by the adjustment rod, so that the distance of the first pin board can be changed to adapt to the installation of inductors of different sizes.

[0010] In a preferred embodiment, the adjusting rod includes a fixed tube and a sliding rod, the outer walls of the first base body, the first frame and the second pin plate are fixedly installed with a fixed tube, the outer walls of the second base body, the second frame, the first pin plate and the third pin plate are fixedly installed with a sliding rod, the sliding rod is slidably clamped in the fixed tube, a plurality of clips are fixedly installed on the end face of the fixed tube close to the sliding rod, a nut sleeve is sleeved on the sliding rod, and a matching thread is provided between the inner wall of the nut sleeve and the outer wall of the clip.

[0011] In a preferred embodiment, the clips are evenly distributed along the circumferential direction of the fixed tube, the clips are of arc-shaped structure, and the inner diameter of the clips is equal to the outer diameter of the slide rod, and the outer wall of the clips and the inner wall of the nut sleeve are of matching frustum outer wall structures.

[0012] Through the above technical solution, the nut sleeve is loosened, and the clip returns to its natural state, that is, the sliding rod is loosened. At this time, the sliding rod can slide along the fixed tube, thereby adjusting the distance between the first seat body and the second seat body, realizing the spacing adjustment of the first pin plate, which is convenient for installing inductors of different sizes, and can also realize the distance adjustment of the second pin plate and the first pin plate and the third pin plate, realizing the installation of capacitors of different sizes. At the same time, the spacing adjustment between the second frame and the first frame realizes the change of the position of the grounding wire, so that the grounding wire is close to the second pin plate, meeting the grounding needs while saving space, making the filter arrangement more compact and miniaturized.

[0013] In a preferred implementation case, the grounding rod includes a fixing sleeve, a fixing sleeve is integrally formed on one of the second frames, and a slide is fixedly connected to the other second frame, and the slide is slidably engaged in the fixing sleeve, and the outer walls of the slide and the fixing sleeve on one side close to the second pin board are respectively fixedly installed with a first wiring board and a second wiring board, and a plurality of grounding holes are opened on the first wiring board and the second wiring board, and the second pin board is electrically connected to the grounding hole through a wire, and a grounding wire is fixedly provided through the second frame, and the grounding wire is electrically connected to the first wiring board and the second wiring board.

[0014] In a preferred embodiment, the cross-sections of the inner cavities of the slide plate and the fixing sleeve are matched rectangular structures, and a guide groove facing the first wiring board is formed on an inner wall of one side of the fixing sleeve.

[0015] In a preferred embodiment, a packaging shell is provided on the outer side of the first frame and the second frame, an inductor is electrically connected between the inductor pin holes, a capacitor is electrically connected between the capacitor pin holes, the two pins of the capacitor between the first pin plate and the second pin plate are located on the same straight line as the two end pins of the inductor, the capacitor between the third pin plate and the second pin plate is located outside the end face of the inductor, and the pin of the capacitor on the third pin plate is located on the same straight line as the two pins of the inductor.

[0016] Through the above technical solution, as the number of inductor holders installed is different, the first frame spacing is different, and the second frame spacing is different. At this time, the slide slides along the inner cavity of the fixed sleeve to adapt to the length requirement, and is electrically connected to the second pin board through the grounding holes on the first wiring board and the second wiring board through wires, meeting the grounding needs of one pin of the capacitor. One pin of the capacitor is adjacent to a pin position of the inductor, and the arrangement is more compact, realizing a miniaturized combination, and adapting to the arrangement of inductors and capacitors of different sizes, and is convenient to use.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Both the first and second frames are L-shaped structures, and the two first and second frames form the four corners of a rectangle. Adjacent inductor holders and the inductor holders and the first frames are connected by I-type card slots and fixed by countersunk bolts, so that different numbers of inductor holders can be installed as needed;

[0019] 2. Loosen the nut sleeve, and the clip returns to its natural state, that is, loosen the sliding rod. At this time, the sliding rod can slide along the fixed tube, thereby adjusting the distance between the first base body and the second base body, realizing the adjustment of the distance between the first pin plate, which is convenient for installing inductors of different sizes, and also realizing the adjustment of the distance between the second pin plate and the first pin plate and the third pin plate, realizing the installation of capacitors of different sizes. At the same time, the adjustment of the distance between the second frame and the first frame realizes the change of the position of the grounding wire, so that the grounding wire is close to the second pin plate, which meets the grounding needs and saves space. When the nut sleeve is tightened on the outer wall thread of the clip, the inner wall of the nut sleeve squeezes the outer wall of the clip through the round table surface, so that the clip is deformed inwardly and clamps the sliding rod to achieve fixation. Then the entire filter arrangement frame is fixed, which is convenient to use.

[0020] 3. As the number of inductor holders installed is different, the first frame spacing is different, and the second frame spacing is different. At this time, the slide slides along the inner cavity of the fixed sleeve to adapt to the length requirement, and is electrically connected to the second pin plate through the grounding holes on the first wiring board and the second wiring board through wires, meeting the grounding needs of one pin of the capacitor. One pin of the capacitor is adjacent to a pin position of the inductor, and the arrangement is more compact, realizing a miniaturized combination, and adapting to the arrangement of inductors and capacitors of different sizes, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the local structure of the inductor seat of the present invention.

[0024] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the grounding rod of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the filter package of the present invention.

[0026] Figure 5 This is a structural diagram of the filter arrangement of the present invention.

[0027] In the figure: 1. First frame; 2. Second frame; 3. Inductor seat; 31. First seat body; 32. Second seat body; 41. Slot; 42. I-type plate; 4. Splicing block; 5. First pin plate; 6. Inductor pin hole; 7. Port connection line; 8. Adjustment rod; 81. Fixing tube; 82. Sliding rod; 83. Clip; 84. Nut sleeve; 9. Grounding rod; 91. Fixing sleeve; 92. Slide plate; 93. First terminal block; 94. Second terminal block; 95. Grounding hole; 96. Grounding wire; 10. Second pin plate; 11. Third pin plate; 12. Capacitor pin hole; 13. Package shell; 14. Inductor; 15. Capacitor DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example: Figure 1-5 As shown, the present invention provides a variable combination structure for filter arrangement, including a first frame 1 and a second frame 2, two first frames 1 and second frames 2 are each provided, multiple groups of inductor seats 3 are provided between the two first frames 1, a splicing block 4 is clamped between the inductor seat 3 and the first frame 1, an adjustment rod 8 is installed between the first frame 1 and the second frame 2, a grounding rod 9 is provided between the second frame 2, a first pin plate 5 is fixedly installed on the inner wall of the inductor seat 3, a third pin plate 11 is fixedly installed on the inner wall of the first frame 1, the side walls of the first pin plate 5 and the third pin plate 11 are connected to the second pin plate 10 through the adjustment rod 8, an inductor pin hole 6 is opened at one end of the first pin plate 5 close to the inductor seat 3, and a capacitor pin hole 12 is opened on the other end of the first pin plate 5, the second pin plate 10 and the third pin plate 11.

[0030] Through the above technical solution, the length of the inductor seat 3 is adjustable, thereby adjusting the spacing between the first pin plate 5. The spacing between the second pin plate 10 and the first pin plate 5 and the third pin plate 11 is adjusted by the adjustment rod 8, so that inductors of different sizes are connected between the inductor pin holes 6, and capacitors of different sizes are connected between the capacitor pin holes 12, so that the LC filter is arranged compactly and can be changed in combination to adapt to the installation of inductors and capacitors of different sizes.

[0031] Furthermore, the first frame 1 and the second frame 2 are both L-shaped structures, and the two first frames 1 and the second frames 2 constitute the four corners of a rectangle. Port connection lines 7 are fixedly provided through the two first frames 1, and the two port connection lines 7 are electrically connected to the two third pin boards 11 respectively.

[0032] Through the above technical solution, the two port connection lines 7 are connected to the inlet port and the outlet port of the filter respectively, realizing the connection between the filter and the external circuit.

[0033] Furthermore, the inductor seat 3 includes a first seat body 31 and a second seat body 32, and an adjustment rod 8 is provided between the adjacent surfaces of the first seat body 31 and the second seat body 32. A first pin plate 5 is fixedly installed on the first seat body 31 and the second seat body 32. The outer wall of the end surface of the first seat body 31 and the second seat body 32 away from each other and the outer wall of the end surface of the first frame 1 are both provided with a slot 41, and the slot 41 is a T-shaped structure. An I-type plate 42 is clamped between two adjacent inductor seats 3 and between adjacent inductor seats 3 and the slot 41 on the first frame 1. Countersunk screws are sleeved on both ends of the I-type plate 42, and the countersunk screws are threadedly connected to the inner wall of the slot 41.

[0034] Through the above technical solution, adjacent inductor bases 3 and the inductor base 3 and the first frame 1 are connected by means of the I-shaped plate 42 snap-fitting the slot 41 and fixed by countersunk bolts, so that different numbers of inductor bases 3 can be installed as needed. The distance between the first base body 31 and the second base body 32 of the inductor base 3 is adjusted by the adjusting rod 8, thereby realizing the change of the distance between the first pin plate 5 to adapt to the installation of inductors of different sizes.

[0035] Furthermore, the adjusting rod 8 includes a fixed tube 81 and a sliding rod 82. The outer walls of the first base body 31, the first frame 1 and the second pin plate 10 are fixedly installed with the fixed tube 81, and the outer walls of the second base body 32, the second frame 2, the first pin plate 5 and the third pin plate 11 are fixedly installed with the sliding rod 82. The sliding rod 82 is slidably clamped in the fixed tube 81, and a plurality of clips 83 are fixedly installed on the end face of the fixed tube 81 close to the sliding rod 82. A nut sleeve 84 is sleeved on the sliding rod 82, and a matching thread is provided between the inner wall of the nut sleeve 84 and the outer wall of the clip 83. The clips 83 are evenly distributed along the circumferential direction of the fixed tube 81. The clip 83 is an arc-shaped structure, and the inner diameter of the clip 83 is equal to the outer diameter of the sliding rod 82. The outer wall of the clip 83 and the inner wall of the nut sleeve 84 are matching conical outer wall structures.

[0036] Through the above technical solution, the nut sleeve 84 is loosened, and the clip 83 returns to its natural state, that is, the slide rod 82 is loosened. At this time, the slide rod 82 can slide along the fixed tube 81, thereby adjusting the distance between the first base body 31 and the second base body 32, and realizing the distance adjustment of the first pin plate 5, which is convenient for installing inductors 14 of different sizes. It can also realize the distance adjustment of the second pin plate 10 and the first pin plate 5 and the third pin plate 11, and realize the installation of capacitors 15 of different sizes. At the same time, the distance adjustment between the second frame 2 and the first frame 1 realizes the change of the position of the grounding rod 9, so that the grounding wire is close to the second pin plate 10, meeting the grounding needs while saving space, making the filter arrangement more compact and miniaturized.

[0037] Furthermore, the grounding rod 9 includes a fixing sleeve 91, a fixing sleeve 91 is integrally formed on a second frame 2, and a slide 92 is fixedly connected to the other second frame 2, and the slide 92 is slidably engaged in the fixing sleeve 91, and the outer walls of the slide 92 and the fixing sleeve 91 on one side close to the second pin board 10 are respectively fixedly installed with a first terminal board 93 and a second terminal board 94, and a plurality of grounding holes 95 are opened on the first terminal board 93 and the second terminal board 94, and the second pin board 10 is electrically connected to the grounding hole 95 through a wire, and a grounding rod 96 is fixedly provided through the second frame 2, and the grounding rod 96 is electrically connected to the first terminal board 93 and the second terminal board 94, and the cross-section of the inner cavity of the slide 92 and the fixing sleeve 91 is a matching rectangular structure, and a guide groove facing the first terminal board 93 is opened on the inner wall of one side of the fixing sleeve 91.

[0038] Through the above technical solution, as the number of inductor holders 3 installed is different, the spacing between the first frame 1 is different, and the spacing between the second frame 2 is different. At this time, the slide 92 slides along the inner cavity of the fixed sleeve 91 to adapt to the length requirement, and is electrically connected to the second pin plate 10 through the grounding hole 95 on the first wiring board 93 and the second wiring board 94 through a wire, meeting the grounding need of one pin of the capacitor 15.

[0039] Furthermore, a packaging shell 13 is provided on the outer side of the first frame 1 and the second frame 2, the inductor 14 is electrically connected between the inductor pin holes 6, the capacitor 15 is electrically connected between the capacitor pin holes 12, the two pins of the capacitor 15 between the first pin plate 5 and the second pin plate 10 are located on the same straight line as the two end pins of the inductor 14, the capacitor 15 between the third pin plate 11 and the second pin plate 10 is located on the outside of the end surface of the inductor 14, and the pin of the capacitor 15 on the third pin plate 11 is located on the same straight line as the two pins of the inductor 14.

[0040] Through the above technical solution, one pin of the capacitor 15 is adjacent to one pin of the inductor 14 , and the arrangement is more compact, thereby achieving a miniaturized combination.

[0041] Working principle: The first frame 1 and the second frame 2 are both L-shaped structures, and the two first frames 1 and the second frames 2 form the four corners of a rectangle. The adjacent inductor seats 3 and the inductor seat 3 and the first frame 1 are connected by the I-plate 42 snap-fitting slot 41 and fixed by countersunk bolts, so that different numbers of inductor seats 3 can be installed as needed. The nut sleeve 84 is loosened, and the clip 83 returns to its natural state, that is, the slide bar 82 is loosened. At this time, the slide bar 82 can slide along the fixed tube 81, thereby adjusting the distance between the first seat body 31 and the second seat body 32, realizing the spacing adjustment of the first pin plate 5, facilitating the installation of inductors 14 of different sizes, and also realizing the distance adjustment of the second pin plate 10 and the first pin plate 5 and the third pin plate 11, realizing the installation of capacitors 15 of different sizes. At the same time, the spacing adjustment between the second frame 2 and the first frame 1 realizes the position change of the grounding rod 9, so that The grounding wire is close to the second pin plate 10, which meets the grounding needs while saving space. When the nut sleeve 84 is tightened on the outer wall of the clip 83, the inner wall of the nut sleeve 84 squeezes the outer wall of the clip 83 through the round table surface, so that the clip 83 deforms inward and clamps the slide bar 82 to achieve fixation. The entire filter arrangement frame is fixed. As the number of inductor seats 3 installed is different, the spacing of the first frame 1 is different, and the spacing of the second frame 2 is different. At this time, the slide plate 92 slides along the inner cavity of the fixing sleeve 91 to adapt to the length requirement, and is electrically connected to the second pin plate 10 through the grounding hole 95 on the first terminal board 93 and the second terminal board 94 through a wire, meeting the grounding need of one pin of the capacitor 15. One pin of the capacitor 15 is adjacent to a pin position of the inductor 14, the arrangement is more compact, realizing a miniaturized combination, and adapting to the arrangement of inductors 14 and capacitors 15 of different sizes, and is easy to use.

[0042] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A variable combination structure for filter arrangement, comprising a first frame (1) and a second frame (2), characterized in that: The first frame (1) and the second frame (2) are both provided with two, and multiple groups of inductor seats (3) are provided between the two first frames (1). A splicing block (4) is clamped between the inductor seat (3) and the first frame (1). An adjustment rod (8) is installed between the first frame (1) and the second frame (2). A grounding rod (9) is provided between the second frame (2). A first pin plate (5) is fixedly installed on the inner wall of the inductor seat (3), and a third pin plate (11) is fixedly installed on the inner wall of the first frame (1). The side walls of the first pin plate (5) and the third pin plate (11) are connected to the second pin plate (10) through the adjustment rod (8). An inductor pin hole (6) is provided at one end of the first pin plate (5) close to the inductor seat (3), and a capacitor pin hole (12) is provided on the other end of the first pin plate (5), the second pin plate (10) and the third pin plate (11).

2. A variable combination structure for filter arrangement according to claim 1, characterized in that: The first frame (1) and the second frame (2) are both L-shaped structures, and the two first frames (1) and the second frames (2) form the four corners of a rectangle. Port connection lines (7) are fixedly provided through the two first frames (1), and the two port connection lines (7) are electrically connected to the two third pin plates (11) respectively.

3. A variable combination structure for filter arrangement according to claim 1, characterized in that: The inductor seat (3) comprises a first seat body (31) and a second seat body (32), an adjusting rod (8) is provided between adjacent surfaces of the first seat body (31) and the second seat body (32), and a first pin plate (5) is fixedly mounted on both the first seat body (31) and the second seat body (32).

4. A variable combination structure for filter arrangement according to claim 3, characterized in that: The outer wall of the end face of the first seat body (31) and the second seat body (32) away from each other and the outer wall of the end face of the first frame (1) are both provided with a slot (41), the slot (41) being a T-shaped structure, the two adjacent inductor seats (3) and the slots (41) on the adjacent inductor seats (3) and the first frame (1) are clamped with an I-type plate (42), both ends of the I-type plate (42) are sleeved with countersunk screws, and the countersunk screws are threadedly connected to the inner wall of the slot (41).

5. The variable combination structure for filter arrangement according to claim 3, characterized in that: The adjusting rod (8) includes a fixed tube (81) and a sliding rod (82). The outer walls of the first base (31), the first frame (1) and the second pin plate (10) are all fixedly mounted with the fixed tube (81). The outer walls of the second base (32), the second frame (2), the first pin plate (5) and the third pin plate (11) are all fixedly mounted with the sliding rod (82). The sliding rod (82) is slidably engaged in the fixed tube (81). A plurality of clips (83) are fixedly mounted on an end surface of the fixed tube (81) close to the sliding rod (82). A nut sleeve (84) is sleeved on the sliding rod (82). A matching thread is provided between the inner wall of the nut sleeve (84) and the outer wall of the clip (83).

6. A variable combination structure for filter arrangement according to claim 5, characterized in that: The clips (83) are evenly distributed along the circumferential direction of the fixed tube (81), the clips (83) are of an arc-shaped structure, and the inner diameter of the clips (83) is equal to the outer diameter of the slide rod (82), and the outer wall of the clips (83) and the inner wall of the nut sleeve (84) are of a matching frustum outer wall structure.

7. The variable combination structure for filter arrangement according to claim 1, characterized in that: The grounding rod (9) comprises a fixing sleeve (91), one of the second frame (2) is integrally formed with the fixing sleeve (91), and the other second frame (2) is fixedly connected with a slide plate (92), the slide plate (92) is slidably engaged in the fixing sleeve (91), and the outer wall of the slide plate (92) and the fixing sleeve (91) on one side close to the second pin plate (10) is respectively fixedly mounted with a first wiring board (93) and a second wiring board (94), the first wiring board (93) and the second wiring board (94) are both provided with a plurality of grounding holes (95), the second pin plate (10) and the grounding holes (95) are electrically connected via wires, and a grounding wire (96) is fixedly provided through the second frame (2), and the grounding wire (96) is electrically connected to the first wiring board (93) and the second wiring board (94).

8. A variable combination structure for filter arrangement according to claim 7, characterized in that: The cross sections of the inner cavities of the slide plate (92) and the fixing sleeve (91) are matched rectangular structures, and a guide groove facing the first wiring board (93) is formed on the inner wall of one side of the fixing sleeve (91).

9. The variable combination structure for filter arrangement according to claim 1, characterized in that: A packaging shell (13) is provided on the outside of the first frame (1) and the second frame (2); an inductor (14) is electrically connected between the inductor pin holes (6); and a capacitor (15) is electrically connected between the capacitor pin holes (12).

10. The variable combination structure for filter arrangement according to claim 9, characterized in that: The two pins of the capacitor (15) between the first pin plate (5) and the second pin plate (10) are located on the same straight line as the two end pins of the inductor (14); the capacitor (15) between the third pin plate (11) and the second pin plate (10) is located outside the end surface of the inductor (14); and the pins of the capacitor (15) on the third pin plate (11) are located on the same straight line as the two pins of the inductor (14).

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