CN212783729U

CN212783729U - Filter and rod fly adjusting assembly

Info

Publication number: CN212783729U
Application number: CN202021966987.XU
Authority: CN
Inventors: 张少林; 陈秋祥
Original assignee: Shenzhen Wave Technology Co Ltd
Current assignee: Shenzhen Wave Technology Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-03-23
Anticipated expiration: 2030-09-10

Abstract

A filter and rod fly adjustment assembly, the filter comprising: the cavity assembly, the resonance piece and the rod fly adjusting assembly; the resonance piece is arranged in the cavity assembly; the rod fly adjusting assembly comprises a clamping seat connected with the cavity assembly and a debugging rod movably penetrating through the clamping seat; one of the clamping seat and the debugging rod is provided with an elastic part, and the other of the clamping seat and the debugging rod is abutted against the elastic part so as to limit the movement of the debugging rod relative to the clamping seat. Through advancing debugging pole toward cavity assembly in or withdraw from debugging pole toward the cavity assembly outside, adjust the distance between tip and the resonance piece that debugging pole is in cavity assembly, or adjust the length of debugging pole in cavity assembly to change the capacitance value or the inductance value of wave filter. Because the elastic part is connected with the clamping seat or the debugging rod in a butting mode instead of a thread, the debugging rod and the cavity assembly or the resonance part are kept at relative positions, and meanwhile, sliding teeth or fragments can be prevented from entering the cavity assembly, and the performance reliability of the filter is guaranteed.

Description

Filter and rod fly adjusting assembly

Technical Field

The utility model relates to a wireless communication device technical field especially relates to a wave filter and pole fly adjusting part.

Background

The cavity filter is widely applied to the communication field, particularly the radio frequency communication field, as a frequency selection device, and is used for selecting communication signals and eliminating clutter or interference signals except the communication signal frequency in a base station for completing the transmission and the reception of signals in a communication system.

The rod fly adjusting component for debugging the capacitance value and changing the frequency characteristic is an important device of the rod fly adjusting component, and the adjustment of the capacitive coupling quantity or the inductive coupling quantity of the filter is realized by changing the distance between the debugging rod and the resonance piece. With the development of mobile communication, the requirements for the generation power and the receiving sensitivity of a communication system are higher, and the requirements for the smoothness of the inner cavity of a filter are higher and higher. The debugging stage is long in time consumption, the smoothness of the inner cavity of the filter can be influenced to a great extent, the threaded rod fly adjusting assembly is generally adopted in the industry at present, and the performance of the filter is influenced because the threaded part is rough, the thread debugging process can be slippery, or scraps are generated and fall into the inner cavity.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a filter and a rod-flight adjusting assembly for solving the problem that the rod-flight thread debugging process may generate thread slippage or generate debris falling into the cavity to affect the performance of the filter.

A filter, comprising:

a cavity assembly;

a resonating member disposed in the cavity assembly; and

the rod fly adjusting assembly comprises a clamping seat connected with the cavity assembly and a debugging rod movably penetrating through the clamping seat; one of the clamping seat and the debugging rod is provided with an elastic part, and the other of the clamping seat and the debugging rod is abutted against the elastic part so as to limit the movement of the debugging rod relative to the clamping seat.

According to the filter, the debugging rod is pushed into the cavity assembly or retreats from the cavity assembly, the distance between the end part of the debugging rod in the cavity assembly and the resonance part is adjusted, or the length of the debugging rod in the cavity assembly is adjusted, the capacitance value or the inductance value of the filter can be changed, and clutter or interference signals except communication signal frequency can be selected or eliminated by communication signals. Because the butt of utilizing elastic part and cassette or debugging pole has replaced threaded connection, when keeping the relative position of debugging pole and cavity subassembly or resonance piece, can avoid producing in smooth tooth or the piece gets into the cavity subassembly, prevent that the inside power that takes place of cavity subassembly from striking sparks the problem, guarantee the performance reliability of wave filter.

In one embodiment, the cartridge is cylindrical; the clamping seat is provided with an elastic part, and the elastic part extends towards the inner cavity of the clamping seat and is abutted against the surface of the debugging rod; thereby the extension length of the clamping seat or the elastic part in the length direction of the debugging rod can be reduced and the structure of the debugging rod can be simplified.

In one embodiment, the method further comprises one of the following technical characteristics:

the elastic part is strip-shaped and extends in a direction parallel to the length direction of the debugging rod, and the elastic part protrudes towards the central shaft of the clamping seat; the elastic parts are uniformly distributed along the inner wall of the clamping seat;

the elastic part is granular and protrudes towards the central shaft of the clamping seat; the elastic parts are distributed at intervals along the circumferential direction of the clamping seat to form a first annular structure; at least two first annular structures are arranged in the clamping seat, and the first annular structures are distributed at intervals along the axial direction of the clamping seat;

the elastic part is strip-shaped and extends along the circumferential direction of the clamping seat, and the elastic part protrudes towards the central shaft of the clamping seat; the elastic parts are distributed along the circumferential direction of the clamping seat to form a second annular structure; at least two second annular structures are arranged in the clamping seat, and the second annular structures are distributed at intervals along the axial direction of the clamping seat; therefore, the angle of the axial direction of the debugging rod relative to the clamping seat can be ensured to be unchanged when the debugging rod moves relative to the clamping seat in a telescopic mode.

In one embodiment, the debugging rod is cylindrical, and the outer side surface of the debugging rod is smoothly arranged; thereby reducing the weight of the debugging rod and avoiding the generation of scraps on the debugging rod.

In one embodiment, one end of the debugging rod penetrating into the cavity component is closed; one end of the debugging rod, which is exposed out of the cavity assembly, is connected with an end plate; thereby can avoid the outside dust of wave filter to enter into cavity subassembly and conveniently exert thrust or pulling force to the debugging rod.

In one embodiment, the debugging rod is provided with an elastic part which is distributed on the outer side surface of the debugging rod; the elastic part is abutted with the inner part of the clamping seat; thereby maintaining the position of the debugging rod relative to the clamping seat.

the elastic part is strip-shaped and extends in a direction parallel to the length direction of the debugging rod, and the elastic part protrudes towards the outer side of the debugging rod; the elastic parts are uniformly distributed along the outer side of the debugging rod;

the elastic part is granular and protrudes to the outer side of the debugging rod; the elastic parts are distributed at intervals along the circumferential direction of the debugging rod to form a third annular structure; a plurality of third annular structures are arranged on the outer side of the debugging rod and are distributed at intervals along the axial direction of the debugging rod;

the elastic part is strip-shaped and extends along the circumferential direction of the debugging rod, and the elastic part protrudes towards the outer side of the debugging rod; the elastic parts are distributed along the circumferential direction of the debugging rod to form a fourth ring-shaped structure; a plurality of fourth annular structures are arranged on the outer side of the debugging rod and are distributed at intervals along the axial direction of the debugging rod; therefore, the angle of the axial direction of the debugging rod relative to the clamping seat can be ensured to be unchanged when the debugging rod moves relative to the clamping seat in a telescopic mode.

In one embodiment, the cavity assembly comprises a main cavity and a cover plate connected with an opening of the main cavity; the resonance piece is accommodated in the main cavity; the cover plate is provided with a mounting hole, and the clamping seat penetrates through the mounting hole; the clamping seat is provided with a fixed disc, and the fixed disc is abutted to the cover plate; thereby improving the safety and stability of the filter.

A rod fly adjustment assembly, comprising: the debugging rod is movably arranged in the clamping seat in a penetrating way; the clamping seat is cylindrical and is provided with an elastic part, the elastic part extends towards the inner cavity of the clamping seat, and the elastic part is abutted against the debugging rod so as to limit the debugging rod to move relative to the clamping seat; therefore, the sliding teeth or scraps can be avoided, the power ignition problem in the cavity assembly is prevented, and the performance reliability of the filter is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a filter according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the cartridge of FIG. 1;

fig. 3 is a schematic perspective view of a card seat according to another embodiment of the present invention;

fig. 4 is a schematic perspective view of a card seat according to another embodiment of the present invention;

FIG. 5A is a schematic structural diagram of the cover plate in FIG. 1;

FIG. 5B is an enlarged schematic view of the cover plate of FIG. 5A taken at circle A;

FIG. 6A is a front view of the debugging rod in FIG. 1;

fig. 6B is a top view of the debugging rod in fig. 1.

The corresponding relation between each reference number and each meaning in the drawings is as follows:

100. a filter; 20. a cavity assembly; 21. a main chamber; 22. a cover plate; 23. mounting holes; 30. a resonating piece; 40. a rod fly adjustment assembly; 50. a card holder; 51a, an elastic part; 51b, an elastic part; 51c, an elastic part; 52. fixing the disc; 60. a debugging rod; 61. and an end plate.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Example 1:

referring to fig. 1 to 6B, a filter 100 according to an embodiment of the present invention is used for selecting a communication signal or eliminating noise or interference signals outside the frequency of the communication signal. The filter 100 includes: the cavity assembly 20, the resonance piece 30 and the rod fly adjusting assembly 40; the resonator 30 is disposed in the cavity assembly 20; the rod fly adjusting assembly 40 comprises a clamping seat 50 connected with the cavity assembly 20 and a debugging rod 60 movably penetrating through the clamping seat 50; one of the clamping seat 50 and the debugging rod 60 is provided with an elastic part 51a, and the other of the clamping seat 50 and the debugging rod 60 is abutted against the elastic part 51a so as to limit the movement of the debugging rod 60 relative to the clamping seat 50.

By pushing the debugging rod 60 into the cavity assembly 20 or withdrawing the debugging rod 60 out of the cavity assembly 20, the distance between the end of the debugging rod 60 in the cavity assembly 20 and the resonance part 30 is adjusted, or the length of the debugging rod 60 in the cavity assembly 20 is adjusted, so that the capacitance or inductance of the filter 100 can be changed, and the selection of communication signals or the elimination of noise waves or interference signals beyond the communication signal frequency is realized. Because the elastic part 51a is abutted against the clamping seat 50 or the debugging rod 60 to replace threaded connection, the relative position of the debugging rod 60 and the cavity assembly 20 or the resonance piece 30 is kept, and meanwhile, the sliding teeth or the fragments are prevented from entering the cavity assembly 20, the power ignition problem in the cavity assembly 20 is prevented, and the performance reliability of the filter 100 is ensured.

Referring to fig. 1 and 2, in one embodiment, the card holder 50 is cylindrical; the holder 50 has an elastic portion 51a, and the elastic portion 51a extends toward the inner cavity of the holder 50 and abuts against the surface of the adjuster rod 60. Because the elastic part 51a is disposed on the clamping seat 50, the extension length of the clamping seat 50 or the elastic part 51a in the length direction of the debugging rod 60 can be reduced, and the structure of the debugging rod 60 can be simplified, so that the structure of the debugging rod 60 is more regular and is easy to process.

Referring to fig. 2, in one embodiment, the elastic portion 51a is in a strip shape and extends parallel to the length direction of the adjusting rod 60, and the elastic portion 51a protrudes toward the central axis of the clamping seat 50; the plurality of elastic parts 51a are uniformly distributed along the inner wall of the card holder 50.

Referring to fig. 3, in one embodiment, the elastic portion 51b is granular, and the elastic portion 51b protrudes toward the central axis of the card holder 50; the plurality of elastic parts 51b are distributed at intervals along the circumferential direction of the cassette 50 to form a first annular structure; at least two first annular structures are arranged in the clamping seat 50, and the first annular structures are distributed at intervals along the axial direction of the clamping seat 50.

Referring to fig. 4, in one embodiment, the elastic portion 51c is strip-shaped and extends along the circumferential direction of the card holder 50, and the elastic portion 51c protrudes toward the central axis of the card holder 50; the plurality of elastic parts 51c are distributed along the circumferential direction of the cassette 50 to form a second annular structure; at least two second annular structures are arranged in the clamping seat 50, and the second annular structures are distributed at intervals along the axial direction of the clamping seat 50. Specifically, the elastic portions 51c in the same second annular structure may be disposed at intervals, and may also be communicated with each other to form a complete ring.

Because the elastic part extends or distributes along the axial of cassette 50, the elastic part supports debugging rod 60 from different angles simultaneously, when debugging rod 60 moves telescopically relative to cassette 50, the elastic part plays the guide effect to debugging rod 60, guarantees that the angle of the axial of debugging rod 60 relative to cassette 50 is unchangeable. And the elastic part is in interference fit with the debugging rod 60, so that the debugging rod 60 can be positioned.

Alternatively, in order to improve the connection stability of the elastic part with the main body of the cartridge 50, the elastic part is integrally provided with the main body of the cartridge 50. Specifically, the elastic portion may be formed on the card seat 50 by stamping.

Referring to fig. 6A, in one embodiment, the debugging rod 60 is cylindrical and has a smooth outer side surface. Since the debugging rod 60 has a cylindrical shape, the weight of the debugging rod 60 can be reduced. Because the surface of the debugging rod 60 contacting with the elastic part 51a is smoothly arranged, the generation of chips on the debugging rod 60 can be avoided, and the chips are prevented from falling into the cavity assembly 20.

Referring to fig. 6A, in one embodiment, a debugging rod 60 is inserted into one end of the cavity assembly 20 and is disposed in a closed manner; an end plate 61 is connected to one end of the debugging rod 60 exposed out of the chamber assembly 20. Since the end of the debugging rod 60 penetrating into the cavity assembly 20 is closed, dust outside the filter 100 can be prevented from entering into the cavity assembly 20. When the debugging rod 60 is operated, a pushing force or a pulling force can be applied to the debugging rod 60 through the end plate 61 to push the debugging rod 60 into the cavity assembly 20 or withdraw from the cavity assembly 20.

Referring to fig. 6B, in particular, to facilitate the rotation of the adjusting bar 60, the edge of the end plate 61 is polygonal or star-shaped.

Referring to fig. 5A and 5B, in one embodiment, the cavity assembly 20 includes a main cavity 21 and a cover plate 22 connected to an opening of the main cavity 21; the resonator 30 is housed in the main cavity 21; the cover plate 22 is provided with a mounting hole 23, and the clamping seat 50 penetrates through the mounting hole 23; the holder 50 has a fixed plate 52, and the fixed plate 52 abuts against the cover plate 22. After the resonator 30 is installed in the main cavity 21, a closed space can be formed in the cavity assembly 20 by combining the main cavity 21 and the cover plate 22, thereby improving the safety and stability of the filter 100. In particular, the resonator member 30 is a resonant rod. The mounting hole 23 is a countersunk hole, and the fixed disk 52 is received in the mounting hole 23. Solder paste is applied between the fixing plate 52 and the cover plate 22 to weld and fix the clamping seat 50 and the cover plate 22.

Example 2:

the debugging rod is provided with an elastic part, and the elastic part is distributed on the outer side surface of the debugging rod; the elastic part abuts against the inner side of the card holder 50. Because the lateral surface of debugging pole distributes elastic part, and elastic part along the axial distribution of debugging pole, therefore when debugging pole moves relative cassette 50, different elastic part on the debugging pole in proper order with the inner wall butt of cassette 50 to keep the relative cassette 50's of debugging pole position.

In one embodiment, the elastic part is strip-shaped and extends in the direction parallel to the length of the debugging rod, and the elastic part protrudes towards the outer side of the debugging rod; the elastic parts are uniformly distributed along the outer side of the debugging rod.

In one embodiment, the elastic part is granular and protrudes to the outer side of the debugging rod; the elastic parts are distributed at intervals along the circumferential direction of the debugging rod to form a third annular structure; the debugging rod outside is provided with a plurality of third ring structures, and the axial interval distribution of third ring structure along the debugging rod.

In one embodiment, the elastic part is strip-shaped and extends along the circumferential direction of the debugging rod, and the elastic part protrudes towards the outer side of the debugging rod; the elastic parts are distributed along the circumferential direction of the debugging rod to form a fourth annular structure; the debugging rod 60 outside is provided with a plurality of fourth ring structures, and fourth ring structure is along debugging rod's axial interval distribution. Specifically, each elastic part in the same fourth annular structure may be disposed at intervals, and may also be communicated with each other to form a complete ring.

Because the elastic parts extend or are distributed along the axial direction of the debugging rod, when the debugging rod moves to different positions along the axial direction, the elastic parts which are abutted against the inner wall of the clamping seat 50 exist on the debugging rod, and the angle of the axial direction of the debugging rod relative to the clamping seat 50 can be ensured to be unchanged. The elastic part is in interference fit with the debugging rod, so that the debugging rod 60 can be positioned. Alternatively, in order to improve the connection stability of the elastic part with the main body of the socket 50, the elastic part is integrally provided with the debugging rod. Specifically, the elastic part may be formed on the debugging rod by punching with a die.

Example 3:

referring to fig. 1 and 2, the rod fly adjusting assembly 40 includes a card seat 50 and a debugging rod 60 movably inserted into the card seat 50; the socket 50 is cylindrical and has an elastic portion 51a, the elastic portion 51a extends toward an inner cavity of the socket 50, and the elastic portion 51a abuts against the debugging rod 60 to limit the movement of the debugging rod 60 relative to the socket 50. Because the elastic part 51a is abutted against the debugging rod 60 to replace threaded connection, the relative position of the debugging rod 60 and the cavity assembly 20 or the resonance piece 30 is kept, and meanwhile, the generation of sliding teeth or scraps can be avoided, the power ignition problem in the cavity assembly 20 is prevented, and the performance reliability of the filter 100 is ensured.

Referring to fig. 4, in one embodiment, the elastic portion 51c is strip-shaped and extends along the circumferential direction of the card holder 50, and the elastic portion 51c protrudes toward the central axis of the card holder 50; the plurality of elastic parts 51c are distributed along the circumferential direction of the cassette 50 to form a second annular structure; at least two second annular structures are arranged in the clamping seat 50, and the second annular structures are distributed at intervals along the axial direction of the clamping seat 50.

In this embodiment, by pushing the debugging rod 60 into the cavity assembly 20 or withdrawing the debugging rod 60 from the cavity assembly 20, the distance between the end of the debugging rod 60 in the cavity assembly 20 and the resonance component 30 is adjusted, or the length of the debugging rod 60 in the cavity assembly 20 is adjusted, so as to change the capacitance or inductance of the filter 100, and realize the selection of communication signals or eliminate noise or interference signals outside the communication signal frequency. Because the elastic part 51a is abutted against the clamping seat 50 or the debugging rod 60 to replace threaded connection, the relative position of the debugging rod 60 and the cavity assembly 20 or the resonance piece 30 is kept, and meanwhile, the sliding teeth or the fragments are prevented from entering the cavity assembly 20, the power ignition problem in the cavity assembly 20 is prevented, and the performance reliability of the filter 100 is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A filter, comprising:

a cavity assembly;

a resonating member disposed in the cavity assembly; and

2. The filter of claim 1, wherein the cartridge is cylindrical; the clamping seat is provided with an elastic part, and the elastic part extends towards the inner cavity of the clamping seat and is abutted against the surface of the debugging rod.

3. The filter of claim 2, further comprising one of the following features:

the elastic part is strip-shaped and extends along the circumferential direction of the clamping seat, and the elastic part protrudes towards the central shaft of the clamping seat; the elastic parts are distributed along the circumferential direction of the clamping seat to form a second annular structure; at least two second annular structures are arranged in the clamping seat, and the second annular structures are distributed at intervals along the axial direction of the clamping seat.

4. The filter according to claim 2, wherein the debugging rod is cylindrical and has a smooth outer surface.

5. The filter of claim 4, wherein the debugging rod penetrates into one end of the cavity component and is arranged in a closed manner; the debugging rod is exposed out one end of the cavity assembly is connected with an end plate.

6. The filter of claim 1, wherein the debugging rod is provided with an elastic part which is distributed on the outer side surface of the debugging rod; the elastic part is abutted against the inside of the clamping seat.

7. The filter of claim 6, further comprising one of the following features:

the elastic part is strip-shaped and extends along the circumferential direction of the debugging rod, and the elastic part protrudes towards the outer side of the debugging rod; the elastic parts are distributed along the circumferential direction of the debugging rod to form a fourth ring-shaped structure; the debugging rod outside is provided with a plurality of fourth ring structures, fourth ring structure follows the axial interval distribution of debugging rod.

8. The filter of claim 1, wherein the cavity assembly comprises a main cavity and a cover plate connected to an opening of the main cavity; the resonance piece is accommodated in the main cavity; the cover plate is provided with a mounting hole, and the clamping seat penetrates through the mounting hole; the clamping seat is provided with a fixed disk, and the fixed disk is abutted to the cover plate.

9. A rod fly adjustment assembly, comprising: the debugging rod is movably arranged in the clamping seat in a penetrating way; the clamping seat is cylindrical and is provided with an elastic part, the elastic part extends towards the inner cavity of the clamping seat, and the elastic part is abutted against the debugging rod so as to limit the debugging rod to move relative to the clamping seat.

10. The fly rod adjustment assembly of claim 9, further comprising one of the following features: