Resonator and filter

Abstract

The utility model relates to the field of communication, and provides a resonator and a filter. The resonator comprises a cover plate, a supporting piece and an adjusting piece, the cover plate is provided with a deformation part capable of deforming under stress and a fixing part arranged on the periphery of the deformation part, and the deformation part is provided with a threaded hole; the supporting piece is connected to the fixing part in a split mode, the supporting piece and the deformation part are arranged at intervals, and connecting holes are formed in the supporting piece in a penetrating mode. One end of the adjusting piece is in threaded connection with the threaded hole, and the other end of the adjusting piece is rotatably connected with the connecting hole in an axial limiting mode. Based on the structure, the connection operation between the adjusting piece and the deformation part and between the adjusting piece and the supporting piece can be simplified, the installation mode and the connection operation of the adjusting piece can be simple, the structure of the resonator can be simplified, the number of parts of the resonator can be small, and miniaturization and light weight of the resonator can be facilitated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a resonator and a filter. BACKGROUND

[0002] In some cases, the resonator comprises a cover plate, a fixed plate and an adjusting piece. The cover plate comprises a deformation part and a fixed part arranged at the periphery of the deformation part. The fixed plate is fixed to the fixed part. A threaded hole is arranged through the center of the fixed plate. One end of the adjusting piece, which is away from the deformation part, is threadedly connected to the threaded hole. The other end of the adjusting piece, which is close to the deformation part, is axially limitedly and rotatably connected to the deformation part. Based on this, the resonant frequency can be adjusted by rotating the adjusting piece to make the adjusting piece move axially and drive the deformation part to deform axially. However, the prior art needs to additionally set a circlip or a limiting cap around the periphery of the adjusting piece, and the circlip or the limiting cap needs to be connected and matched with the deformation part, so that the adjusting piece can be axially limitedly and rotatably connected to the deformation part. This leads to a complex installation mode and connection operation of the adjusting piece, and increases the number of parts. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a resonator, aiming to solve the problem of complex installation mode and connection operation of the adjusting piece, and increase the number of parts.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the embodiments of the present application is as follows:

[0005] In a first aspect, a resonator is provided, comprising:

[0006] A cover plate has a deformation part that can be deformed under force, and a fixed part arranged at the periphery of the deformation part. The deformation part is provided with a threaded hole.

[0007] A support piece is connected in two parts to the fixed part and is arranged in space with the deformation part. The support piece is provided with a connecting hole.

[0008] An adjusting piece has one end threadedly connected to the threaded hole, and the other end axially limitedly and rotatably connected to the connecting hole.

[0009] In some embodiments, the threaded hole is arranged on the side of the deformation part facing the support piece, and the threaded hole is a blind hole.

[0010] In some embodiments, the deformation part is provided with a connecting boss, and the threaded hole is arranged in the connecting boss.

[0011] In some embodiments, the support piece comprises a support part and a bent part. The bent part is connected to the periphery of the support part and is arranged to be bent towards the side close to the cover plate. The bent part is connected and fixed with the fixed part.

[0012] In some embodiments, the support member is connected to the fixing portion towards an end surface of the support member.

[0013] In some embodiments, the support member is welded to the fixing portion.

[0014] In some embodiments, the adjusting member comprises a main body portion, and a connecting portion connected to an end of the main body portion away from the deformed portion, the connecting portion being buckled to the connecting hole.

[0015] In some embodiments, the connecting portion comprises a connecting segment, a stop protrusion and a buckling protrusion, the connecting segment being arranged through the connecting hole, the stop protrusion being outwardly arranged from one end of the connecting segment and stopping at one side hole edge of the connecting hole, and the buckling protrusion being outwardly arranged from the other end of the connecting segment and buckled to the other side hole edge of the connecting hole.

[0016] In some embodiments, a truncated groove is arranged at the end side of the connecting segment close to the buckling protrusion.

[0017] In some embodiments, an operating portion is arranged at the end of the adjusting member away from the deformed portion.

[0018] In some embodiments, the buckling protrusion is arranged at the end of the connecting segment away from the main body portion, and the truncated groove is the operating portion.

[0019] In some embodiments, the end of the adjusting member away from the deformed portion is press-bent to form a flange, and the flange stops at the hole edge of the connecting hole.

[0020] In some embodiments, the deformed portion is a soft aluminum alloy material member;

[0021] In some embodiments, the support member is a hard aluminum alloy material member;

[0022] In some embodiments, the adjusting member is a steel material member.

[0023] In some embodiments, the cover plate is an integral single-layer cover plate.

[0024] Alternatively, the cover plate is a double-layer cover plate, the cover plate comprising a first plate member and a second plate member, the second plate member having the fixing portion, and the first plate member being arranged in a stacked manner at the side of the second plate member away from the support member and having the deformed portion.

[0025] In a second aspect, a filter is provided, comprising the resonator provided in the embodiments of the present application.

[0026] The resonator provided in the present application has the following beneficial effects:

[0027] The resonator provided in this application embodiment can achieve the function of tuning (i.e., adjusting the resonant frequency) by threading the adjusting member to the deformable part and rotatably connecting it to the support member with axial limitation. The tuning difficulty is small, and the tuning operation is simple, stable, and controllable. Moreover, compared with the prior art, this embodiment transfers the threaded connection to the deformable part, so that the adjusting member can be directly threaded to the deformable part without the need for other components such as snap rings or limiting caps to connect and cooperate with the deformable part. This embodiment transfers the axially limited rotatable connection to the support member, so that the connecting hole can be directly set as a through hole without considering the electrical performance of the resonator (because the connecting hole will not affect the sealing of the resonant cavity or the electrical performance of the resonator). This allows the adjusting member to be directly inserted into the through connecting hole and limited to cooperate with the connecting hole to quickly achieve axially limited rotatable connection without the need for other components such as snap rings or limiting caps to achieve axial limitation. This simplifies the connection between the adjusting component and the deformable part, and between the adjusting component and the supporting component. It also simplifies the installation and connection of the adjusting component, simplifies the structure of the resonator, reduces the number of components in the resonator, and facilitates the miniaturization and weight reduction of the resonator. Attached Figure Description

[0028] To clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 Three-dimensional schematic diagram of a resonator provided for some embodiments of this application;

[0030] Figure 2 for Figure 1 A cross-sectional view of the provided resonator;

[0031] Figure 3 for Figure 1 The provided diagram shows the disassembled version of the resonator.

[0032] Figure 4 A cross-sectional view of a resonator provided in some other embodiments of this application, wherein the resonant rod is connected and fixed to a plate of the resonator housing opposite to the cover plate;

[0033] Figure 5 A cross-sectional view of a resonator provided in some other embodiments of this application, wherein the resonant rod is connected and fixed to the deformed portion;

[0034] Figure 6 A cross-sectional view of a resonator provided in some other embodiments of this application, wherein the connecting portion is bent over the connecting hole;

[0035] Figure 7 A sectional view of the resonator provided for another embodiment of the present application, wherein the adjusting member is bent to form a flange at one end of the deformation portion, and the flange is stopped at the hole edge of the connecting hole.

[0036] Figure 8 A sectional view of the resonator provided for another embodiment of the present application, wherein the cover plate is a double-layer cover plate.

[0037] In the drawings:

[0038] 10 - resonator housing, 11 - cover plate, 111 - deformation portion, 1111 - threaded hole, 1112 - connecting boss, 112 - fixing portion, 113 - first plate member, 114 - second plate member, 12 - cavity, 13 - resonant cavity; 20 - support member, 21 - support portion, 211 - connecting hole, 22 - bent portion; 30 - adjusting member, 31 - main body portion, 32 - connecting portion, 321 - connecting section, 322 - stop protrusion, 323 - buckle protrusion, 324 - truncated groove, 33 - operating portion, 34 - flange, 35 - shaft shoulder, 40 - resonant rod. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects of the present application clear, the present application will be described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. If not specifically stated, all embodiments and optional embodiments of the present application can be combined to form new technical solutions. If not specifically stated, all technical features and optional technical features of the present application can be combined to form new technical solutions.

[0040] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly interpreted, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, "central axis" refers to a line passing through the geometric center line of the corresponding structure.

[0044] In the present application, "axial direction" refers to the extension direction of the central axis of the corresponding structure, "radial direction" refers to any direction passing through the central axis and perpendicular to the central axis of the corresponding structure, and "circumferential direction" refers to the circumferential direction of the outer circumferential surface of the corresponding structure.

[0045] In some cases, the resonator comprises a cover plate, a fixed plate, an adjusting piece, the cover plate comprises a deformation part and a fixed part arranged at the outer periphery of the deformation part, the fixed plate is fixed to the fixed part, the center of the fixed plate is provided with a threaded hole, the end of the adjusting piece away from the deformation part is threadedly connected to the threaded hole of the fixed plate, and the end of the adjusting piece close to the deformation part is axially limitedly rotatably connected to the deformation part. Based on this, the adjusting piece can move along the axial direction by rotating the adjusting piece, and since the adjusting piece is axially limitedly rotatably connected to the deformation part, the deformation part can be deformed along the axial direction during the axial movement of the adjusting piece, thereby adjusting the resonant frequency.

[0046] In order to realize that the adjusting piece is axially limitedly rotatably connected to the deformation part, the prior art provides two schemes:

[0047] Prior art (one): the deformation part is provided with a through hole, the adjusting piece is arranged in the through hole, the end of the adjusting piece extending into the resonator is provided with a limiting boss, the limiting boss is limited and stopped at one side hole of the through hole, and the outer periphery of the adjusting piece is further provided with a snap spring, the snap spring is limited and stopped at the other side hole of the through hole, based on this, the adjusting piece can be axially limited relative to the deformation part by the limiting boss and the snap spring, and has the freedom of rotation.

[0048] Prior art (two): the side of the deformation part facing the fixed plate is provided with a groove, the end of the adjusting piece close to the deformation part is provided with a limiting boss, the limiting boss is installed in the groove, and the end of the adjusting piece close to the deformation part is further provided with a limiting cap, the outer periphery of the limiting cap is in interference fit with the groove wall, and the limiting cap further abuts against the side of the limiting boss away from the groove bottom, based on this, the adjusting piece can be axially limited relative to the deformation part by the limiting cap and the groove bottom of the limiting boss, and has the freedom of rotation.

[0049] However, the prior art needs to additionally set a snap spring or a limiting pressure cap outside the periphery of the adjusting piece, and needs to connect and match the snap spring or the limiting pressure cap with the deformed part (especially since the actual size of the resonator is very small, the connection and matching of the snap spring or the limiting pressure cap with the deformed part is very difficult), so that the adjusting piece is axially limited and rotatably connected to the deformed part, resulting in complex installation mode and connection operation of the adjusting piece, and increasing the number of parts.

[0050] Moreover, the prior art causes the adjusting piece to move axially in the process of applying force to the adjusting piece, resulting in that the adjusting piece needs to have a certain length and protrude from the fixed plate in design and debugging process, the size of the protruding adjusting piece is large, which is not conducive to the miniaturization design of the overall shape of the resonator. Moreover, the adjusting piece protrudes outside the fixed plate and has an axial movement degree of freedom, which is easy to cause accidental touch, collision and the like, not only damaging the adjusting piece, but also easily causing the tuning index to change, affecting the normal use of the resonator.

[0051] The embodiments provided in the present application will solve the above problems.

[0052] The specific implementation of the present application is described in detail in combination with specific embodiments as follows:

[0053] Please refer to Figure 1 , Figure 2 , Figure 3 Some embodiments of the present application provide a resonator, which comprises a cover plate 11, a supporting piece 20 and an adjusting piece 30. The cover plate 11 has a deformed part 111 which can be deformed under force, and a fixed part 112 provided outside the periphery of the deformed part 111, and the deformed part 111 is provided with a threaded hole 1111. The supporting piece 20 is connected in two parts to the fixed part 112 and is arranged in a spaced manner with the deformed part 111, and the supporting piece 20 is provided with a connecting hole 211. One end of the adjusting piece 30 is threadedly connected to the threaded hole 1111, and the other end of the adjusting piece 30 is axially limited and rotatably connected to the connecting hole 211.

[0054] It should be noted that the resonator comprises a resonator shell 10, and the inside of the resonator shell 10 has a resonant cavity 13. The resonator shell 10 can realize shielding function to prevent signal leakage.

[0055] The plate piece on one side of the resonator shell 10 is the cover plate 11. In actual application scenarios, the resonator can be placed in the posture of the cover plate 11 facing up, or in the posture of the cover plate 11 facing left, right, front or back. In addition, the shape, size, material and the like of the resonator shell 10 can be flexibly set as needed.

[0056] The cover plate 11 has a deformation portion 111 and a fixing portion 112. The fixing portion 112 is arranged around the outer periphery of the deformation portion 111, and is used to be connected and fixed with other parts (which can be referred to as a cavity 12) of the resonator shell 10. The thickness of the deformation portion 111 is smaller than the thickness of the fixing portion 112, and the thickness of the deformation portion 111 is relatively thin. The deformation portion 111 can be deformed by force towards the side close to the resonant cavity 13, or can be deformed by force towards the side away from the resonant cavity 13, so as to adjust the resonant frequency. The deformation portion 111 can be integrally formed with the fixing portion 112, or the deformation portion 111 can be connected in a separate body to the fixing portion 112. When the deformation portion 111 is connected in a separate body to the fixing portion 112, the deformation portion 111 can be connected to the side of the fixing portion 112 facing the resonant cavity 13 in a stacked manner, or the deformation portion 111 can be connected to the inner peripheral surface of the fixing portion 112. The deformation portion 111 can be made of a plastic metal material that can be deformed and does not automatically rebound after deformation.

[0057] It should be further noted that the support 20 is formed in a separate body relative to the cover plate 11. The support 20 is arranged on the outer side of the cover plate 11 away from the resonant cavity 13, and is connected in a separate body to the fixing portion 112 and fixed relative to the fixing portion 112, so as to stabilize the mounting position and mounting state of the support 20 relative to the fixing portion 112. The support 20 can be connected and fixed to the fixing portion 112 in a manner such as, but not limited to, welding, pressure connection, clamping, adhesion, screw connection, plug-in connection, threaded connection, etc.

[0058] At least part of the support 20 is arranged in correspondence with the deformation portion 111 and is arranged in a spaced manner. The space between the support 20 and the deformation portion 111 can reserve a deformation space for the deformation portion 111.

[0059] It should be further noted that the side of the deformation portion 111 facing the support 20 is provided with a threaded hole 1111, and the hole wall of the threaded hole 1111 is provided with an internal thread. The outer peripheral surface of the end of the adjusting member 30 close to the deformation portion 111 is provided with an external thread, and the end of the adjusting member 30 close to the deformation portion 111 is threadedly connected to the threaded hole 1111 of the deformation portion 111. The threaded hole 1111 can be a blind hole or a through hole. In the case where the threaded hole 1111 is a through hole, in order to prevent the signal in the resonant cavity 13 from leaking from the through threaded hole 1111, the adjusting member 30 can be a metal material member; of course, in the case where the requirement for the index is not high, the adjusting member 30 can also be a non-metal material member. In the case where the threaded hole 1111 is a blind hole, the adjusting member 30 can be a metal material member or a non-metal material member.

[0060] The support 20 is provided with a connecting hole 211 which is arranged through the support 20 and is arranged in position with the threaded hole 1111. The connecting hole 211 is a smooth hole with smooth hole wall. The adjusting member 30 is rotatably connected to the connecting hole 211 in the axial direction away from the deformed portion 111, that is, the adjusting member 30 has rotational freedom in the connecting hole 211, and the axial movement of the adjusting member 30 relative to the support 20 is limited. Among them, the adjusting member 30 can be limited to move axially both away from the resonant cavity 13 and close to the resonant cavity 13 (that is, the adjusting member 30 cannot move axially at all), and can be limited to move axially only away from the resonant cavity 13, and can be limited to move axially only close to the resonant cavity 13.

[0061] Based on this, in the case that the adjusting member 30 is limited to move axially away from the resonant cavity 13, by rotating the adjusting member 30, the adjusting member 30 has a tendency to move away from the resonant cavity 13. Because the adjusting member 30 cannot move axially away from the resonant cavity 13, based on the threaded connection between the adjusting member 30 and the deformed portion 111, the adjusting member 30 will drive the deformed portion 111 to deform towards the resonant cavity 13 side, thereby realizing the adjustment of the resonant frequency. In the case that the adjusting member 30 is limited to move axially close to the resonant cavity 13, by rotating the adjusting member 30, the adjusting member 30 has a tendency to move close to the resonant cavity 13. Because the adjusting member 30 cannot move axially close to the resonant cavity 13, based on the threaded connection between the adjusting member 30 and the deformed portion 111, the adjusting member 30 will drive the deformed portion 111 to deform away from the resonant cavity 13 side, thereby realizing the adjustment of the resonant frequency. Therefore, in the case that the adjusting member 30 is limited to move axially both away from the resonant cavity 13 and close to the resonant cavity 13 (that is, the adjusting member 30 cannot move axially at all), the resonant frequency can be adjusted bidirectionally.

[0062] Therefore, the resonator provided by the embodiment of the present application can achieve the tuning (i.e., adjusting the resonant frequency) function by screwing the adjusting member 30 to the deformed portion 111 and axially limiting and rotatably connecting the adjusting member 30 to the support member 20, and the tuning difficulty is relatively small, and the tuning operation is simple, stable and controllable. Compared with the prior art, the embodiment transfers the screwing cooperation relationship to the deformed portion 111, so that the adjusting member 30 can be directly screwed to the deformed portion 111 without the need of using other components such as a snap spring or a limiting cap to connect and cooperate with the deformed portion 111; the embodiment transfers the axial limiting and rotatable cooperation relationship to the support member 20, so that the connecting hole 211 can be directly set as a through hole without considering the electrical performance of the resonator (because the connecting hole 211 will not affect the sealing performance of the resonant cavity 13 or the electrical performance of the resonator), so that the adjusting member 30 can be directly arranged in the through connecting hole 211 and limiting cooperates with the connecting hole 211 to quickly achieve the axial limiting and rotatable connection without the need of using other components such as a snap spring or a limiting cap to achieve the axial limiting. Therefore, the connecting operation between the adjusting member 30 and the deformed portion 111 and between the adjusting member 30 and the support member 20 can be simplified, the installation mode and the connecting operation of the adjusting member 30 can be simple, the structure of the resonator can be simplified, the number of components of the resonator can be small, and the resonator can be miniaturized and lightened.

[0063] In addition, since the adjusting member 30 is axially limited by the support member 20, the axial movement of the adjusting member 30 is limited, and even in some embodiments, the adjusting member 30 can not move axially, so the part of the adjusting member 30 protruding out of the support member 20 can not be too long, or even the adjusting member 30 can not protrude out of the support member 20, so that the size of the adjusting member 30 protruding out is small, which can help to reduce the size of the resonator and miniaturize the resonator. In addition, the risk of the adjusting member 30 being accidentally touched, collided or damaged can be reduced, the stability and effectiveness of the tuning index can be improved, and the use reliability of the adjusting member 30 and the resonator can be improved.

[0064] As shown in FIG. 1, Figure 4 In a possible implementation, the resonant cavity 13 can accommodate a resonant rod 40. The resonant rod 40 is connected and fixed to the plate member of the resonator housing 10 opposite to the cover plate 11 and is spaced apart from the deformed portion 111. In this case, the deformed portion 111 can be deformed under force to change the distance between the deformed portion 111 and the resonant rod 40, so as to adjust the capacitance between the deformed portion 111 and the resonant rod 40, thereby achieving the adjustment of the resonant frequency.

[0065] As shown in FIG. 1, Figure 5In another possible implementation, the resonant rod 40 can be accommodated in the resonant cavity 13. The resonant rod 40 is connected and fixed to the deformation portion 111. In this case, the deformation portion 111 can be deformed by force to change the distance from the end of the resonant rod 40 away from the deformation portion 111 to the corresponding inner wall of the resonator shell 10, so as to adjust the capacitance between the end of the resonant rod 40 away from the deformation portion 111 and the corresponding inner wall of the resonator shell 10, thereby achieving the adjustment of the resonant frequency.

[0066] The resonant rod 40 can be connected and fixed to the resonator shell 10 in a manner such as but not limited to integral connection, welding, screw fastening, threaded connection, riveting, pressure connection, clamping, etc. The resonant rod 40 can be a metal resonant rod, a ceramic dielectric resonant rod, or a dielectric resonant rod made of other materials; the resonant rod 40 can be a hollow resonant rod or a solid resonant rod; the resonant rod 40 can have a resonant disc or not; the resonant disc can have a turned-up edge or not; the resonant rod 40 can be a circular rod, a polygonal rod, a special-shaped rod, a sheet-shaped resonant rod, a sheet metal resonant rod, or a resonant rod in other forms, etc.

[0067] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, the threaded hole 1111 is formed on the side of the deformation portion 111 facing the support 20, and the threaded hole 1111 is a blind hole. That is, the threaded hole 1111 does not penetrate through the deformation portion 111.

[0068] By using the above scheme, the cover plate 11 can cooperate with other parts (i.e., the cavity 12) of the resonator shell 10 to comprehensively and reliably close the resonant cavity 13, so as to improve the closing property of the resonant cavity 13, thereby optimizing the shielding function of the resonator shell 10, reducing the risk of signal leakage from the threaded hole 1111, and maintaining the electrical performance, intermodulation, and power performance of the resonator.

[0069] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, the deformation portion 111 is provided with a connecting boss 1112, and the threaded hole 1111 is formed in the connecting boss 1112.

[0070] It should be noted that the connecting boss 1112 can be provided on the side of the deformation portion 111 facing the support piece 20, and the thickness of the connecting boss 1112 at the setting area is greater than the thickness of other areas of the deformation portion 111. The threaded hole 1111 is provided on the connecting boss 1112, so that the depth of the threaded hole 1111 can be extended as needed. The connecting boss 1112 can be integrally formed on the deformation portion 111, or can be connected to the deformation portion 111 in a split manner, which can adopt but is not limited to adhesion, welding and the like. The shape and size of the connecting boss 1112 can be set as needed.

[0071] By adopting the above scheme, the connecting boss 1112 is provided on the deformation portion 111, and the threaded hole 1111 is provided on the connecting boss 1112, so that the depth of the threaded hole 1111 can be extended as needed. Based on this, it is beneficial to expand the adjustable range of the connection length of the threaded hole 1111 and the adjusting piece 30, thereby benefiting the expansion of the deformable amount of the deformation portion 111, and benefiting the expansion of the adjustable range of the resonant frequency.

[0072] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, the support piece 20 includes a support portion 21 and a bent portion 22, the bent portion 22 is connected to the outer periphery of the support portion 21 and is bent to be close to the cover plate 11, and the bent portion 22 is connected and fixed with the fixing portion 112.

[0073] It should be noted that the support portion 21 is correspondingly and spacedly provided with the deformation portion 111, and the connecting hole 211 is provided on the support portion 21. The bent portion 22 is bent to be connected to the outer periphery of the support portion 21, and the bent portion 22 is bent to be close to the cover plate 11 relative to the support portion 21, so that the support piece 20 is in the shape of a hat with a turned edge. The bent portion 22 is connected and fixed with the fixing portion 112, that is, the bent portion 22 is connected to the fixing portion 112 and is fixedly provided relative to the fixing portion 112, and the connection mode can adopt but is not limited to welding, pressure connection, clamping, adhesion, screw connection, insertion, threaded connection and the like.

[0074] By adopting the above scheme, the support piece 20 can be connected and fixed with the fixing portion 112 through the bent portion 22 bent to be close to the cover plate 11 relative to the support portion 21. Based on this, the structure of the support piece 20 can be optimized, and the connection convenience between the support piece 20 and the fixing portion 112 can be improved. Moreover, the inside of the support piece 20 can have a certain space, which can provide sufficient deformation space for the deformation of the deformation portion 111, so that the thickness of the cover plate 11 can be correspondingly thinned, and the weight of the resonator can be correspondingly reduced, which is beneficial to the miniaturization and light weight of the resonator.

[0075] The embodiment is particularly suitable to be combined with the embodiment of "the deformation portion 111 is provided with the connecting boss 1112". In the case that the deformation portion 111 is provided with the connecting boss 1112, the deformation space can be mainly provided by the bending portion 22, and the deformation portion 111 does not need to be responsible for providing the deformation space. In this case, the height of the connecting boss 1112 can be flush with the height of the fixed portion 112, so that the processing of the connecting boss 1112 is facilitated, and the processing can be completed by only one step of tool feeding.

[0076] Of course, in other embodiments, the support 20 can be a flat plate or a plate with steps.

[0077] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, the support 20 is connected to the end surface of the fixed portion 112 facing the support 20 (i.e., the outer surface of the fixed portion 112 facing away from the resonant cavity 13).

[0078] By using the above scheme, the support 20 can be connected to the end surface of the fixed portion 112 facing the support 20, i.e., connected to the outer surface of the fixed portion 112 facing away from the resonant cavity 13, but not connected to the outer peripheral surface of the fixed portion 112. Based on this, the support 20 can be conveniently and reliably connected and fixed with the fixed portion 112 according to its setting position, and the connection convenience and reliability between the support 20 and the fixed portion 112 can be improved. Moreover, since the support 20 does not need to extend to the periphery of the fixed portion 112 and be connected to the outer peripheral surface of the fixed portion 112, the size of the support 20 can be reduced, and the size of the resonator can be reduced, thereby facilitating the miniaturization and light weight of the resonator.

[0079] The embodiment is particularly suitable to be combined with the embodiment of "the support 20 includes the support portion 21 and the bending portion 22". In the case that the bending portion 22 of the support 20 is connected to the end surface of the fixed portion 112 facing the support 20, the space enclosed by the bending portion 22 and the support portion 21 can be sufficiently reserved without being occupied by the fixed portion 112, and the space enclosed between the support 20 and the cover plate 11 can be larger, thereby being able to provide a larger deformation space for the deformation of the deformation portion 111 and a larger accommodation space for the connecting boss 1112.

[0080] Of course, in other embodiments, the support 20 can be connected to the outer peripheral surface of the fixed portion 112; or, the fixed portion 112 can be provided with a stepped groove, and the support 20 can be connected to the groove wall or groove bottom of the stepped groove.

[0081] Please refer to Figure 1 , Figure 2 , Figure 3In some embodiments of this application, the support member 20 is welded to the fixing part 112. That is, the support member 20 and the fixing part 112 are welded at their contacting edges to achieve connection and fixation. The welding can be laser welding, ultrasonic welding, etc. Continuous welding can be used to fix the support member 20 and the fixing part 112 together.

[0082] By adopting the above solution, the support member 20 can be conveniently, quickly, reliably and firmly connected and fixed to the fixing part 112 of the cover plate 11 through welding, thereby improving the connection convenience, connection reliability and connection stability between the support member 20 and the fixing part 112.

[0083] Please see Figure 2 , Figure 6 In some embodiments of this application, the adjusting member 30 includes a main body 31 and a connecting part 32 connected to one end of the main body 31 facing away from the deformable part 111, and the connecting part 32 is fastened to the connecting hole 211.

[0084] It should be noted that the main body 31 is located at the end of the connecting part 32 near the deformable part 111, and the outer peripheral surface of the main body 31 is provided with external threads. The main body 31 is threadedly connected to the threaded hole 1111 of the deformable part 111. The connecting part 32 is connected to the end of the main body 31 facing away from the deformable part 111, and the connecting part 32 is axially limited and rotatably connected to the connecting hole 211. The main body 31 and the connecting part 32 can be integrally formed and integrally connected, or they can be connected separately. The separate connection method can be welding, bonding, etc.

[0085] It should also be noted that the connecting part 32 is fastened to the connecting hole 211. Based on this fastening, the adjusting member 30 can be restricted to axial movement in at least one direction. For example, as... Figure 2 As shown, when the connecting part 32 is engaged with the connecting hole 211, the adjusting member 30 can be restricted to move axially in the direction close to the resonant cavity 13. For example, as... Figure 6 As shown, when the connecting part 32 is upside down on the connecting hole 211, the adjusting member 30 can be restricted to move axially in the direction away from the resonant cavity 13.

[0086] By adopting the above scheme, the adjusting piece 30 can be threadedly connected with the main body part 31 and the deformation part 111, can be axially limitedly and rotatably connected with the support piece 20 through the connecting part 32, and in particular, can be axially moved in at least one direction by the buckling cooperation between the connecting part 32 and the connecting hole 211. Based on this, the adjusting piece 30 can be directly and quickly limitedly cooperated with the connecting hole 211, and the axially limited and rotatable connection can be quickly and reliably achieved, and other components such as a circlip or a limiting pressure cap are not needed. In this way, the structure of the adjusting piece 30 can be simplified and optimized, the connecting operation between the adjusting piece 30 and the deformation part 111 and between the adjusting piece 30 and the support piece 20 can be simplified, and the mounting mode and the connecting operation of the adjusting piece 30 can be simplified and facilitated.

[0087] Of course, in other embodiments, the connecting part 32 and the connecting hole 211 can be axially limitedly and rotatably connected in other ways without using other components such as a circlip or a limiting pressure cap. For example, the connecting part 32 can be flanged and riveted to the connecting hole 211 to achieve the axially limited and rotatable connection. For another example, an elastic structure can be arranged on the connecting part 32, and after the connecting part 32 is inserted into the connecting hole 211, the elastic structure can be deformed to generate an axial limiting effect and enable the connecting part 32 to still rotate.

[0088] Please refer to Figure 2 、 Figure 6 In some embodiments of the present application, the connecting part 32 includes a connecting segment 321, a stop protrusion 322 and a buckle protrusion 323. The connecting segment 321 is arranged through the connecting hole 211. The stop protrusion 322 is outwardly protruded from one end of the connecting segment 321 and is arranged in one side of the connecting hole 211. The buckle protrusion 323 is outwardly protruded from the other end of the connecting segment 321 and is buckled in the other side of the connecting hole 211.

[0089] It should be noted that the connecting segment 321 is arranged through the connecting hole 211, and the connecting segment 321 has a rotating degree of freedom in the connecting hole 211. The shape of the connecting segment 321 can be, but is not limited to, a cylindrical shape, an arc shape, a circular ring shape, etc. The outer circumferential surface of the connecting segment 321 and the hole wall of the connecting hole 211 can be gap-fitted, transition-fitted or slightly interference-fitted.

[0090] The stop protrusion 322 and the buckle protrusion 323 are arranged at opposite ends of the connecting segment 321 and are outwardly protruded from the outer circumferential surface of the connecting segment 321. The stop protrusion 322 can continuously extend along the circumference of the connecting part 32 or discontinuously extend along the circumference of the connecting part 32. The buckle protrusion 323 can continuously extend along the circumference of the connecting part 32 or discontinuously extend along the circumference of the connecting part 32. The stop protrusion 322 and the connecting segment 321 can be integrally formed or separately connected. The buckle protrusion 323 and the connecting segment 321 can be integrally formed or separately connected.

[0091] The stop protrusion 322 can limit and stop on one side of the connecting hole 211, and the snap protrusion 323 can snap onto the other side of the connecting hole 211. Based on this, the stop protrusion 322 and the snap protrusion 323 can achieve double-sided limiting of the connecting part 32 and the connecting hole 211 in the axial direction.

[0092] like Figure 2 As shown, in some embodiments, a stop protrusion 322 is provided at one end of the connecting section 321 near the main body 31, and a latching protrusion 323 is provided at the end of the connecting section 321 away from the main body 31, so that the connecting part 32 is hooked onto the connecting hole 211. In this case, the connecting part 32 can be rotatably connected to the connecting hole 211 via the connecting section 321, and can be stopped by the stop protrusion 322 at the edge of the connecting hole 211 near the deformable part 111 to restrict the axial movement of the adjusting member 30 in the direction away from the resonant cavity 13, and can be hooked onto the edge of the connecting hole 211 away from the deformable part 111 via the latching protrusion 323 to restrict the axial movement of the adjusting member 30 in the direction near the resonant cavity 13, thereby allowing the adjusting member 30 to be axially limited on both sides relative to the connecting hole 211, and allowing the adjusting member 30 to remain axially stationary. Optionally, the stop protrusion 322 can extend continuously along the circumference of the connecting portion 32, and the outer peripheral surface of the stop protrusion 322 coincides with the outer peripheral surface of the main body portion 31. With this configuration, the stop protrusion 322 and the main body portion 31 can form an integral cylindrical shape, facilitating the processing and shaping of both. This is equivalent to the stop protrusion 322 being considered part of the main body portion 31, allowing its outer peripheral surface to also participate in the setting of external threads. It is also equivalent to using a part of the main body portion 31 as the stop protrusion 322, utilizing the end face of the main body portion 31 to achieve a stopping and limiting effect. Of course, the shape and size of the stop protrusion 322 can also differ from the shape and size of the main body portion 31.

[0093] like Figure 6 As shown, in some other embodiments, a snap-fit ​​protrusion 323 is provided at one end of the connecting section 321 near the main body 31, and a stop protrusion 322 is provided at the end of the connecting section 321 away from the main body 31, so that the connecting part 32 is snapped against the connecting hole 211. In this case, the connecting part 32 can be rotatably connected to the connecting hole 211 via the connecting section 321, and can be stopped by the stop protrusion 322 at the edge of the connecting hole 211 away from the deformable part 111 to limit the axial movement of the adjusting member 30 in the direction close to the resonant cavity 13, and can be snapped against the edge of the connecting hole 211 near the deformable part 111 via the snap-fit ​​protrusion 323 to limit the axial movement of the adjusting member 30 in the direction away from the resonant cavity 13, thereby allowing the adjusting member 30 to be axially limited on both sides relative to the connecting hole 211, and allowing the adjusting member 30 to remain axially stationary.

[0094] By adopting the above scheme, the connecting portion 32 can be rotatably connected to the connecting hole 211 via the connecting segment 321; the connecting portion 32 can also be limited and stopped at one side hole edge of the connecting hole 211 via the stopping protrusion 322 and buckled to the other side hole edge of the connecting hole 211 via the buckling protrusion 323, thereby being limited and stopped axially relative to the connecting hole 211. Based on this, the structure of the connecting portion 32 can be simplified and optimized, the connecting portion 32 can be conveniently, quickly and reliably rotatably connected to the connecting hole 211 while being axially limited, and the connection operation convenience, connection reliability and connection stability between the connecting portion 32 and the connecting hole 211 can be improved.

[0095] Moreover, since the adjusting member 30 is limited and stopped axially relative to the connecting hole 211, the rotation stability of the adjusting member 30 in the connecting hole 211 can be improved, and the adjusting member 30 can drive the deformed portion 111 to deform towards the side close to the resonant cavity 13 and also drive the deformed portion 111 to deform towards the side away from the resonant cavity 13, thereby achieving bidirectional adjustment of the resonant frequency, so that the tuning operation convenience, controllability and stability can be improved, the tuning range can be expanded, and the tuning index can be optimized.

[0096] Moreover, since the adjusting member 30 does not move axially, the size of the adjusting member 30 protruding out of the supporting member 20 can be smaller, or even the adjusting member 30 can not protrude out of the supporting member 20, thereby facilitating reduction of the external size of the resonator and miniaturization of the resonator, reducing the risk of the adjusting member 30 being accidentally touched, collided or damaged, improving the stability and effectiveness of the tuning index, and improving the use reliability of the adjusting member 30 and the resonator.

[0097] Moreover, based on the arrangement of the present embodiment, the connecting segment 321, the stopping protrusion 322 and the buckling protrusion 323 of the connecting portion 32 can be processed and formed before the connecting portion 32 is installed to the connecting hole 211, and the connecting portion 32 can be rotatably connected to the connecting hole 211 while being axially limited in the assembly process through elastic deformation. Specifically, in the assembly process of installing the connecting portion 32 to the connecting hole 211, the buckling protrusion 323 is deformed inward adaptively under the action of the hole wall of the connecting hole 211 until the buckling protrusion 323 penetrates out of the connecting hole 211, and the buckling protrusion 323 restores the elastic deformation to be buckled to the hole edge of the connecting hole 211 under the action of its own elasticity. Therefore, based on the present embodiment, the assembly process is simplified, and the assembly convenience and efficiency are higher.

[0098] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, a truncated groove 324 is arranged at the end side of the connecting segment 321 close to the buckling protrusion 323.

[0099] It should be noted that the end side of the connecting segment 321 close to the buckle protrusion 323 (i.e. the end side of the connecting segment 321 away from the stop protrusion 322) is provided with a truncated groove 324, and the truncated groove 324 is provided with at least one. The truncated groove 324 is arranged along the radial direction of the connecting part 32, and the groove depth of the truncated groove 324 is greater than or equal to the axial dimension of the buckle protrusion 323 along the connecting part 32, so that the truncated groove 324 at least truncates part of the connecting segment 321 and the buckle protrusion 323.

[0100] By adopting the above scheme, the complete continuity of the buckle protrusion 323 and the connecting segment 321 in the circumferential direction can be truncated by the truncated groove 324, and the truncated groove 324 can provide partial deformation space for the buckle protrusion 323 and the connecting segment 321. Based on this, in the assembly process of installing the connecting part 32 in the connecting hole 211, the buckle protrusion 323 and the connecting segment 321 can be conveniently deformed inwardly under the action of the hole wall of the connecting hole 211, the resistance of the buckle protrusion 323 and the connecting segment 321 to inwardly contract and deform can be reduced, and thus the assembly convenience and assembly efficiency of the connecting part 32 and the connecting hole 211 can be improved. Therefore, the present embodiment is mainly suitable for the assembly mode of installing the connecting part 32 in the connecting hole 211 by deformation.

[0101] Of course, in other embodiments, the connecting part 32 can not be provided with the truncated groove 324, but the connecting segment 321 and the buckle protrusion 323 can be divided into a plurality of buckle structures arranged at intervals along the circumferential direction of the connecting part 32.

[0102] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, one end of the adjusting member 30 away from the deformed part 111 is provided with an operating part 33. The operating part 33 can be, but is not limited to, a groove, an opening, a boss, a peripheral ridge, etc.

[0103] By adopting the above scheme, the hand or external tool can conveniently and quickly drive the adjusting member 30 to rotate through the operating part 33, so that the operation convenience of the rotation of the adjusting member 30 can be improved, and the simplicity, controllability and stability of the tuning operation can be improved.

[0104] Of course, in other embodiments, the adjusting member 30 can also not have the operating part 33, and the operator can apply force to the adjusting member 30 by using a suction cup, the friction of the hand, a tool with large friction (for example, the end of the tool is provided with a rough rubber part), a tool with adhesion (for example, the end of the tool is provided with an adhesive), etc. to drive the adjusting member 30 to rotate.

[0105] Please refer to Figure 1 , Figure 2 , Figure 3In some embodiments of the present application, the buckle protrusion 323 is arranged at one end of the connecting segment 321 away from the main body 31, and a truncated groove 324 is arranged at the end side of the connecting segment 321 close to the buckle protrusion 323, and the truncated groove 324 is the operation portion 33. That is, in the present embodiment, the truncated groove 324 is arranged at one end of the adjusting member 30 away from the deformation portion 111, and the truncated groove 324 serves as the operation portion 33.

[0106] By using the above scheme, in the case where the truncated groove 324 is arranged at one end of the adjusting member 30 away from the deformation portion 111, the truncated groove 324 can be directly used as the operation portion 33, so that the hand or external tool can conveniently and quickly drive the adjusting member 30 to rotate through the truncated groove 324. Based on this, not only the operation convenience of the rotation of the adjusting member 30 can be improved, but also the truncated groove 324 and the operation portion 33 can be combined, so that the design convenience and processing convenience of the operation portion 33 can be improved, the structure of the adjusting member 30 can be simplified and optimized, and the processing convenience and structural reliability of the adjusting member 30 can be improved.

[0107] Of course, in other embodiments, the truncated groove 324 and the operation portion 33 can be arranged independently.

[0108] Please refer to Figure 7 In some embodiments of the present application, the end of the adjusting member 30 away from the deformation portion 111 is formed into a bent flange 34, and the bent flange 34 is stopped at the hole edge of the connecting hole 211.

[0109] Based on the arrangement of the present embodiment, before the adjusting member 30 is installed into the connecting hole 211, the end of the adjusting member 30 away from the deformation portion 111 can be arranged straight (i.e., the bent flange 34 is not formed yet), so that the adjusting member 30 can be conveniently and quickly arranged in the connecting hole 211; and after the adjusting member 30 is arranged in the connecting hole 211, the end of the adjusting member 30 away from the deformation portion 111 can be extruded, stamped or riveted, so that the end of the adjusting member 30 away from the deformation portion 111 is conveniently and quickly formed into the bent flange 34, and the bent flange 34 is conveniently stopped at the hole edge of the connecting hole 211 away from the deformation portion 111, so that the movement of the adjusting member 30 in the axial direction close to the resonant cavity 13 is limited by the bent flange 34. Therefore, the adjusting member 30 can be conveniently and quickly and reliably connected to the connecting hole 211 in the axial direction with the limitation, the connection operation convenience, connection reliability and connection stability between the adjusting member 30 and the connecting hole 211 can be improved.

[0110] As Figure 7As shown, in some embodiments, on the basis of limiting the axial movement of the adjusting member 30 along the direction close to the resonant cavity 13 via the flange 34, the adjusting member 30 can be provided with the shaft shoulder 35 to stop at the hole along close to the deformation part 111 of the connecting hole 211 via the shaft shoulder 35, so as to limit the axial movement of the adjusting member 30 along the direction away from the resonant cavity 13 via the shaft shoulder 35, so that the adjusting member 30 can be axially positioned on both sides of the connecting hole 211 via the flange 34 and the shaft shoulder 35, so that the adjusting member 30 can be axially immovable. Of course, in other embodiments, the adjusting member 30 can not be provided with the shaft shoulder 35, and only the axial movement of the adjusting member 30 along the direction close to the resonant cavity 13 is limited via the flange 34.

[0111] Please refer to Figure 2 , Figure 3 In some embodiments of the present application, the deformation part 111 is a soft aluminum alloy material piece.

[0112] By adopting the above scheme, the material of the deformation part 111 is a high-toughness soft aluminum alloy, so that the toughness of the deformation part 111 can be improved, the deformation part 111 can be deformed with the stress condition, and the use reliability and service life of the deformation part 111 can be improved.

[0113] Of course, in other embodiments, the deformation part 111 can be made of other plastic metal materials that can be deformed and do not automatically rebound after deformation.

[0114] Please refer to Figure 1 , Figure 2 , Figure 3 In some embodiments of the present application, the support member 20 is a hard aluminum alloy material piece.

[0115] By adopting the above scheme, the material of the support member 20 is a hard aluminum alloy, the material of the fixed part 112 is a high-toughness soft aluminum alloy, and both the support member 20 and the fixed part 112 are made of aluminum alloy materials, so that the support member 20 and the fixed part 112 can be reliably and stably connected.

[0116] The present embodiment is particularly suitable for being combined with the embodiment of “welding the support member 20 and the fixed part 112”. Both the support member 20 and the fixed part 112 are made of aluminum alloy materials, so that laser welding between the support member 20 and the fixed part 112 can be achieved, and the welding effect and welding strength can be improved, and the connection efficiency, connection reliability and connection stability between the support member 20 and the fixed part 112 can be improved.

[0117] Of course, in other embodiments, the material of the support member 20 can be other metal materials or non-metal materials, which can be wooden materials, plastic materials, ceramic materials, etc., as long as it can normally support the adjusting member 30 to facilitate tuning operation.

[0118] Please refer toFigure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the adjusting member 30 is a member of steel material. For example, the adjusting member 30 can be made of stainless steel, spring steel, or the like.

[0119] By employing the above scheme, the structural strength and rigidity of the adjusting member 30 can be improved, the degree of wear and damage of the adjusting member 30 during rotation can be reduced, the use reliability of the adjusting member 30 can be improved, and the service life of the adjusting member 30 can be prolonged.

[0120] Of course, in other embodiments, the adjusting member 30 can be a member of other metal materials. Or, in the case where the threaded hole 1111 is a blind hole, the adjusting member 30 can be a member of non-metal materials.

[0121] Please refer to Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the cover plate 11 is a single-layer cover plate of one-piece. In the present embodiment, the single-layer cover plate can be processed to form the relatively thinned deformation portion 111 by means of slotting.

[0122] By employing the above scheme, by making the cover plate 11 a single-layer cover plate of one-piece, the cover plate 11 can be conveniently integrally formed, the processing convenience and consistency of the cover plate 11 can be improved, the assembly convenience of the cover plate 11 and other parts such as other parts of the resonator shell 10 can be improved, the number of parts of the cover plate 11 and the resonator can be reduced, and the assembly convenience and efficiency of the resonator can be improved.

[0123] Of course, in other embodiments, the cover plate 11 can be a single-layer cover plate of split-piece, i.e., the deformation portion 111 can be connected to the inner peripheral surface of the fixed portion 112 in a split manner.

[0124] Please refer to Figure 8 In some embodiments of the present application, the cover plate 11 is a double-layer cover plate, which includes a first plate member 113 and a second plate member 114. The second plate member 114 has the fixed portion 112, and the first plate member 113 is arranged in a stacked manner on the side of the second plate member 114 away from the support member 20 and has the deformation portion 111.

[0125] It should be noted that the first plate member 113 is arranged in a stacked manner on the side of the second plate member 114 away from the support member 20 (i.e., the side close to the resonant cavity 13). The portion of the first plate member 113 stacked with the second plate member 114 is connected and fixed with the fixed portion 112 of the second plate member 114. The connection and fixing manner of the first plate member 113 with the second plate member 114 can employ, but is not limited to, welding, adhesion, riveting, fastener connection, or the like. The portion of the first plate member 113 other than the connected portion with the second plate member 114 can form the deformation portion 111.

[0126] By adopting the above scheme, the cover plate 11 can be stacked and connected by the first plate member 113 and the second plate member 114, and can be used to cover and shield other parts of the resonator shell 10 to prevent signal leakage. On this basis, the cover plate 11 can form a deformation part 111 through the first plate member 113 and a fixed part 112 through the second plate member 114. Based on this, since the first plate member 113 can be independently formed, the deformation part 111 can be thinned to a greater extent, and the first plate member 113 can form a deformation part 111 except for the connection part with the second plate member 114. The deformation resistance of the deformation part 111 is small, and the deformation range is large, so that the adjustment convenience and adjustable range of the deformation part 111 can be improved. Moreover, since the second plate member 114 and the first plate member 113 are separately formed and connected, the second plate member 114 and the first plate member 113 can be made of the same or different materials, thereby facilitating the reduction of the weight of the cover plate 11 and the resonator, the lightening of the resonator, and the reduction of the cost of the cover plate 11 and the resonator.

[0127] Please refer to Figure 1 Some embodiments of the present application provide a filter comprising one or more resonators provided by embodiments of the present application. In the case of multiple resonators, the multiple resonators can be arranged and coupled as needed.

[0128] By adopting the above scheme, the filter can use the resonator provided by the embodiments of the present application to improve the convenience, controllability and stability of the tuning operation, and improve the tuning effect and filter indicators.

[0129] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A resonator, characterized by, The cover plate has a deformable portion that can be deformed under force, and a fixed portion provided at the periphery of the deformable portion, the deformable portion being provided with a threaded hole; The support member is connected to the fixed portion in a split manner and is arranged in a spaced manner with the deformable portion, the support member being provided with a connecting hole in a penetrating manner; The adjusting member is threadedly connected to the threaded hole at one end, and is rotatably connected to the connecting hole in an axial limiting manner at the other end. The threaded hole is arranged on the side of the deformable portion facing the support member, and the threaded hole is a blind hole.

2. The resonator of claim 1, wherein, The deformable portion is provided with a connecting boss, and the threaded hole is arranged in the connecting boss.

3. The resonator of claim 1, wherein, The support member includes a support portion and a bent portion, the bent portion being connected to the periphery of the support portion and being arranged in a bent manner towards the side close to the cover plate, and the bent portion is connected and fixed with the fixed portion.

4. The resonator of claim 1, wherein, The support member is connected to the end surface of the fixed portion facing the support member.

5. The resonator of claim 1, wherein, The support member is welded and fixed with the fixed portion.

6. The resonator of claim 1, wherein, The adjusting member includes a main body portion, and a connecting portion connected to the end of the main body portion away from the deformable portion, and the connecting portion is buckled in the connecting hole.

7. The resonator of any one of claims 1-6, wherein, The connecting portion includes a connecting segment, a stop protrusion, and a buckle protrusion, the connecting segment is arranged in the connecting hole, the stop protrusion is outwardly arranged from one end of the connecting segment and is stopped at one side hole along of the connecting hole, and the buckle protrusion is outwardly arranged from the other end of the connecting segment and is buckled at the other side hole along of the connecting hole.

8. The resonator of claim 7, wherein, The end side of the connecting segment close to the buckle protrusion is provided with a truncated groove.

9. The resonator of claim 8, wherein, The end of the adjusting member away from the deformable portion is provided with an operating portion.

10. The resonator of any one of claims 1-6, wherein, The buckle protrusion is arranged at the end of the connecting segment away from the main body portion, and the truncated groove is the operating portion.

11. The resonator of claim 9, wherein, The end of the adjusting member away from the deformable portion is formed with a turned edge by pressing and bending, and the turned edge is stopped at the hole along of the connecting hole.

12. The resonator of any one of claims 1-6, wherein, The deformable portion is a soft aluminum alloy material member; 13. The resonator of any one of claims 1-6, wherein, And / or, the support member is a hard aluminum alloy material member; And / or, the adjusting member is a steel material member. The cover plate is an integral single-layer cover plate; 14. The resonator of any one of claims 1-6, wherein, Alternatively, the cover plate is a double-layer cover plate, the cover plate includes a first plate member and a second plate member, the second plate member has the fixed portion, and the first plate member is arranged in a laminated manner on the side of the second plate member away from the support member and has the deformable portion. The resonator includes any one of claims 1-14.

15. A filter, characterized by ​

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