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 limiting piece, a driving piece and an adjusting piece, and the cover plate is provided with a tuning part and a fixing part; the limiting piece is connected to the fixing part in a split mode and provided with a limiting part parallel to the cover plate in a spaced mode, and an exposure hole is formed in the limiting part in a penetrating mode. The driving piece is rotatably mounted between the limiting part and the fixing part in a limiting manner, and a threaded hole is formed in the driving piece in a penetrating manner; the adjusting piece is in threaded connection with the threaded hole and is fixed on the tuning part; a portion of the driving member is exposed in the exposure hole. The resonator can realize bidirectional tuning, the bidirectional tuning difficulty is low, and the tuning operation is simple, stable and controllable. The driving part and the limiting part can be of a regular complete annular structure, the limiting part can form complete limiting on the driving part, the driving part cannot be separated in the rotating process, the rotating stroke of the driving part cannot be limited due to separation, and therefore the tuning amount of single rotation of the driving part can be large, and the tuning process is more stable and controllable.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and in particular relates to a resonator and a filter. Background Art

[0002] In some cases, the resonator includes a cavity, a deformable cover plate, a support cover plate, an adjusting nut and an adjusting member, the deformable cover plate covers the cavity, a mounting groove is provided on the side of the deformable cover plate facing away from the cavity, a deformable groove is provided at the bottom of the mounting groove, the support cover plate is installed in the mounting groove, a through hole is passed through the center of the support cover plate, the adjusting nut is located on the side of the support cover plate facing away from the deformable groove, the adjusting member is threadedly connected to the adjusting nut and passed through the through hole, and the end of the adjusting member is fixedly connected to the bottom of the deformable groove. Based on this, when the adjusting nut is rotated, since the support cover plate restricts the adjusting nut from moving in the direction close to the cavity, the adjusting nut can exert a reaction force on the adjusting member, causing the adjusting member to drive the bottom of the deformable groove to deform in the direction away from the cavity, thereby achieving unidirectional adjustment of the resonant frequency. However, it is difficult for the resonator to cause the adjusting member to drive the bottom of the deformable groove to deform in the direction close to the cavity by rotating the adjusting nut, and it is difficult to achieve bidirectional adjustment of the resonant frequency, and there is a problem of difficulty in bidirectional tuning. Utility Model Content

[0003] The embodiments of the present application provide a resonator and a filter, aiming to solve the problem of difficulty in bidirectional tuning of existing resonators.

[0004] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

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

[0006] The cover plate has a tuning portion capable of being deformed by force, and a fixing portion provided on the periphery of the tuning portion;

[0007] a limiting member, separately connected to the fixing portion, and having a limiting portion parallel to and spaced from the cover plate, wherein the limiting portion is provided with an exposing hole;

[0008] A driving member is rotatably and position-limitedly installed between the limiting portion and the fixing portion, and a threaded hole is provided through the driving member;

[0009] The adjusting member is threadedly connected to the threaded hole and fixed to the tuning part; a portion of the driving member is exposed in the exposure hole.

[0010] In some embodiments, a friction member is provided between the limiting portion and the driving member; and / or a friction member is provided between the driving member and the fixing portion.

[0011] In some embodiments, the side of the limiting portion facing the driving member has a rough area;

[0012] And / or, the side surface of the driving member facing the limiting portion has a rough area;

[0013] and / or, the side of the driving member facing the fixing portion has a rough area;

[0014] And / or, a side surface of the fixing portion facing the driving member has a rough area.

[0015] In some embodiments, the distance between the limiting portion and the fixing portion is equal to or smaller than the thickness of the driving member.

[0016] In some embodiments, the fixing portion includes a first ring portion, a second ring portion, and a third ring portion sequentially arranged outward from the tuning portion, and the first ring portion and the limiting portion jointly limit the driving member;

[0017] On the side close to the limiting member, at least one of the first ring portion and the third ring portion protrudes from the second ring portion and is surrounded by the second ring portion to form a stepped groove; a part of the limiting member is installed in the stepped groove and is connected and fixed to the inner wall of the stepped groove.

[0018] In some embodiments, the limiting member includes a mounting portion, which is connected to the outer periphery of the limiting member and bent toward a side close to the driving member. The mounting portion is installed in the stepped groove and is fixedly connected to the inner wall of the stepped groove.

[0019] In some embodiments, on a side close to the limiting member, the third ring portion protrudes from the second ring portion and is surrounded by the second ring portion to form the stepped groove; the outer peripheral wall of the mounting portion is connected and fixed to the third ring portion.

[0020] In some embodiments, on a side close to the limiting member, the second ring portion is recessed in or flush with the first ring portion.

[0021] In some embodiments, on a side close to the limiting member, the first ring portion protrudes from the second ring portion and is surrounded by the second ring portion to form the stepped groove; the inner peripheral wall of the mounting portion is connected and fixed to the first ring portion.

[0022] In some embodiments, on a side close to the stopper, the third ring portion protrudes from the second ring portion and is enclosed with the second ring portion to form the stepped groove; the outer peripheral wall of the stopper is connected and fixed to the third ring portion;

[0023] The limiting member is a flat plate-shaped structure; or, the limiting member includes a mounting portion, the mounting portion is connected to the outer periphery of the limiting portion and is bent toward a side away from the driving member.

[0024] In some embodiments, the limiting member is interference-pressed with the groove wall of the stepped groove.

[0025] In some embodiments, the limiting member and the fixing portion are further fixed by welding.

[0026] In some embodiments, the adjusting member and the tuning part are interference-connected, riveted, bonded, or welded.

[0027] In some embodiments, the adjusting member includes a main body portion and a connecting portion connected to one end of the main body portion close to the tuning portion; along the axial direction of the adjusting member, a projection of the connecting portion covers a projection of the main body portion.

[0028] In some embodiments, the driving member includes a driving body and an extension portion protruding from the driving body, and the threaded hole passes through the extension portion and the driving body.

[0029] In some embodiments, the driving member includes an operating portion exposed in the exposure hole.

[0030] In some embodiments, the driving member includes a driving body and an extension portion protruding from the driving body, the threaded hole passes through the extension portion and the driving body, the adjusting member and the extension portion are exposed in the exposure hole, and the operating portion is arranged on the outer peripheral wall of the extension portion.

[0031] In some embodiments, the driving body is provided with an annular groove on the outer periphery of the extension portion.

[0032] In some embodiments, the driving member includes a driving body and an extension portion protruding from the driving body, the threaded hole passes through the extension portion and the driving body, and the operating portion is provided on the driving body.

[0033] In some embodiments, the adjusting member is made of aluminum, and the tuning portion is made of a soft aluminum alloy.

[0034] And / or, the driving member is made of steel;

[0035] And / or, the limiting member is made of a hard aluminum alloy material, and the fixing portion is made of a soft aluminum alloy material.

[0036] In some embodiments, the cover plate is an integrated single-layer cover plate.

[0037] In some embodiments, the cover plate is a double-layer cover plate, comprising a first plate member and a second plate member, wherein the second plate member has the fixing portion, and the first plate member is stacked on a side of the second plate member away from the driving member and has the tuning portion.

[0038] In some embodiments, a sealing member is provided between the limiting portion and the driving member.

[0039] In a second aspect, a filter is provided, comprising the resonator provided in an embodiment of the present application.

[0040] The beneficial effects of the resonator provided by this application are:

[0041] The resonator provided in the embodiments of the present application can deform the tuning portion of the cover plate in a direction toward or away from the limiting portion, thereby achieving an increase or decrease in the resonant frequency. Bidirectional tuning is possible, and bidirectional tuning is relatively easy. The tuning operation is simple, stable, and controllable. In particular, because the driver does not need to adopt existing structural designs such as avoidance openings and peripheral flanges during assembly, the driver and limiting member can form a regular, complete annular structure, and the limiting member can completely limit the driver. Therefore, the driver will not dislodge during rotation, and the driver's rotational travel will not be limited by "dislodgement." This allows for a larger tuning amount per single rotation of the driver, making the tuning process more stable and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 A schematic perspective view of a resonator provided in some embodiments of the present application;

[0044] Figure 2 for Figure 1 A cross-sectional view of a resonator is provided;

[0045] Figure 3 for Figure 1 An exploded schematic diagram of the resonator is provided;

[0046] Figure 4 Cross-sectional views of resonators provided in some other embodiments of the present application, wherein the resonant rod is connected and fixed to a plate of the resonator housing opposite to the cover plate;

[0047] Figure 5 Cross-sectional views of resonators provided in some other embodiments of the present application, wherein the resonant rod is connected and fixed to the tuning portion;

[0048] Figure 6 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein a friction member is provided between the limiting portion and the driving member, and a friction member is provided between the driving member and the fixing portion;

[0049] Figure 7 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein, on a side close to the stopper, the third ring portion protrudes from the second ring portion and encloses the second ring portion to form a stepped groove, and the second ring portion is flush with the first ring portion;

[0050] Figure 8 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein, on a side close to the stopper, the third ring portion protrudes from the second ring portion and encloses the second ring portion to form a stepped groove, and the second ring portion protrudes from the first ring portion;

[0051] Figure 9 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein the inner peripheral wall of the mounting portion is connected and fixed to the first ring portion;

[0052] Figure 10 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein the stopper is a flat plate-like structure;

[0053] Figure 11 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein the mounting portion is bent toward a side away from the driving member;

[0054] Figure 12 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein a chip groove is provided at the bottom of the stepped groove;

[0055] Figure 13 A partial cross-sectional view of a resonator provided in some other embodiments of the present application, wherein the driving body is provided with an annular groove on the outer periphery of the extension portion;

[0056] Figure 14 Cross-sectional views of resonators provided in some other embodiments of the present application, wherein the cover plate is a double-layer cover plate, and the first plate member is stacked on a side of the second plate member away from the driver.

[0057] Among them, the reference numerals in the figures are:

[0058] 10-resonator housing, 11-cover plate, 111-tuning part, 112-fixing part, 1121-first ring part, 1122-second ring part, 1123-third ring part, 1124-step groove, 1125-chip groove, 113-concave cavity, 114-first plate, 115-second plate, 12-cavity, 13-resonance cavity; 20-limiting part, 21-limiting part, 211-exposed hole, 22-installing part; 30-driving part, 31-threaded hole, 32-driving body, 321-annular groove, 33-extension part, 34-operating part; 40-adjusting part, 41-main body, 42-connecting part; 50-resonance rod, 60-friction part. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clear and understandable, the application is described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application. Unless otherwise specified, all embodiments and optional embodiments of this application can be combined with each other to form new technical solutions. Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form new technical solutions.

[0060] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0062] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0063] In the present application, "axial" refers to the extension direction of the central axis of the corresponding structure, "radial" refers to any direction of the corresponding structure passing through the central axis and perpendicular to the central axis, and "circumferential" refers to the circumferential direction of the outer peripheral surface of the corresponding structure.

[0064] In some cases, the resonator includes a cavity, a deformable cover plate, a support cover plate, an adjusting nut and an adjusting member, the deformable cover plate covers the cavity, a mounting groove is provided on the side of the deformable cover plate away from the cavity, a deformable groove is provided at the bottom of the mounting groove, the support cover plate is installed in the mounting groove and covers the notch of the deformable groove, a through hole is passed through the center of the support cover plate, the adjusting nut is located on the side of the support cover plate away from the deformable groove, the adjusting member is threadedly connected to the adjusting nut and penetrates the through hole, and the end of the adjusting member is fixedly connected to the bottom of the deformable groove. Based on this, when the adjusting nut is rotated, since the support cover plate restricts the adjusting nut from moving in the direction close to the cavity, the adjusting nut can exert a reaction force on the adjusting member, prompting the adjusting member to move in the direction away from the cavity, so as to drive the bottom of the deformable groove to deform in the direction away from the cavity, thereby achieving unidirectional adjustment of the resonant frequency. However, the resonator can only achieve unidirectional adjustment of the resonant frequency. It is difficult to cause the adjusting member to drive the bottom of the deformable groove to deform in the direction close to the cavity by rotating the adjusting nut, and it is difficult to achieve bidirectional adjustment of the resonant frequency, and there is a problem of difficulty in bidirectional tuning.

[0065] In order to achieve bidirectional adjustment of the resonant frequency, in other cases, the resonator includes a cavity, a cover plate, a driving member, and an adjusting member. The cover plate covers the cavity, a deformation groove is provided on the side of the cover plate away from the cavity, an annular mounting groove is provided on the wall of the deformation groove, an avoidance opening is passed through the wall of the mounting groove away from the bottom of the deformation groove, a flange is provided on the periphery of the driving member, the driving member can be disassembled and assembled in the mounting groove when the flange is aligned with the avoidance opening, the driving member can be rotatably installed in the mounting groove, a threaded hole is passed through the center of the driving member, the adjusting member is threadedly connected to the threaded hole of the driving member, and the end of the adjusting member is fixedly connected to the bottom of the deformation groove. Based on this, since the two opposite walls of the mounting groove can limit the driving member in both directions, by rotating the driving member, the adjusting member can cause the bottom of the deformation groove to deform in a direction away from the cavity, or cause the adjusting member to cause the bottom of the deformation groove to deform in a direction close to the cavity, thereby achieving bidirectional adjustment of the resonant frequency. However, during the rotation of the driver, the flange can easily rotate to the clearance, causing the driver to fall out of the mounting slot. This limits the driver's single rotational range, resulting in a small tuning amount per rotation. This makes tuning more difficult and uncontrollable. Therefore, although this resonator can achieve bidirectional adjustment of the resonant frequency, it also has the problem of difficulty in bidirectional tuning.

[0066] Therefore, the embodiment of the present application provides a resonator that can achieve bidirectional adjustment of the resonant frequency, and the bidirectional tuning is relatively easy, and the tuning operation is simple, stable, and controllable.

[0067] The following describes the specific implementation of this application in detail with reference to specific embodiments:

[0068] See also Figure 1 、 Figure 2 、 Figure 3 Some embodiments of the present application provide a resonator, including a cover 11, a limiting member 20, a driving member 30, and an adjusting member 40. The cover 11 has a tuning portion 111 that can be deformed under force, and a fixing portion 112 arranged on the periphery of the tuning portion 111; the limiting member 20 is separately connected to the fixing portion 112, and has a limiting portion 21 that is parallel and spaced from the cover 11, and the limiting portion 21 is provided with an exposure hole 211; the driving member 30 is rotatably limited and installed between the limiting portion 21 and the fixing portion 112, and the driving member 30 is provided with a threaded hole 31; the adjusting member 40 is threadedly connected to the threaded hole 31 and fixed to the tuning portion 111; a part of the driving member 30 is exposed in the exposure hole 211.

[0069] It should be noted that the resonator includes a resonator housing 10, and the interior of the resonator housing 10 has a resonant cavity 13. The resonator housing 10 can achieve a shielding function to prevent signal leakage.

[0070] The plate on one side of the resonator housing 10 is a cover 11. In practical applications, the resonator can be placed with the cover 11 facing upward, or with the cover 11 facing left, right, front, or back. Furthermore, the shape, size, and material of the resonator housing 10 can be flexibly configured as needed.

[0071] The cover 11 has a tuning portion 111 and a fixing portion 112. The fixing portion 112 is arranged around the outer periphery of the tuning portion 111, and the fixing portion 112 is used to connect and fix with other parts of the resonator shell 10 (which can be called the cavity 12). The thickness of the tuning portion 111 is less than the thickness of the fixing portion 112, and the thickness of the tuning portion 111 is relatively thin. The tuning portion 111 can be deformed toward the side close to the resonant cavity 13 under force, and can also be deformed toward the side away from the resonant cavity 13 under force to adjust the resonant frequency. The tuning portion 111 can be integrally formed with the fixing portion 112, or the tuning portion 111 can be separately connected to the fixing portion 112; when the tuning portion 111 is separately connected to the fixing portion 112, the tuning portion 111 can be stacked with the fixing portion 112 and connected to the side of the fixing portion 112 facing the resonant cavity 13, or the tuning portion 111 can be connected to the inner circumference of the fixing portion 112.

[0072] It should also be noted that the stopper 20 is separately formed and separately connected to the cover plate 11. The stopper 20 is separately connected to the outer side of the fixing portion 112 (i.e., the side facing away from the resonant cavity 13, i.e., the side facing the outside of the resonator) and is fixed relative to the fixing portion 112 to stabilize the installation position and installation state of the stopper 20 relative to the fixing portion 112. The stopper 20 can be connected and fixed to the fixing portion 112 by, but is not limited to, welding, plugging, crimping, snapping, bonding, threading, screw connection, etc.

[0073] The limiting member 20 has a plate-like limiting portion 21, which is parallel to the cover plate 11 and spaced apart from the fixing portion 112. The driving member 30 is installed between the limiting portion 21 and the fixing portion 112 and has rotational freedom (i.e., the driving member 30 can be rotated under force). The limiting portion 21 is limited to one side of the driving member 30 to prevent the driving member 30 from moving in a direction close to the limiting portion 21; the fixing portion 112 is limited to the other side of the driving member 30 to prevent the driving member 30 from moving in a direction away from the limiting portion 21; so that the limiting portion 21 and the fixing portion 112 jointly limit the driving member 30 therebetween, that is, the limiting portion 21 and the fixing portion 112 jointly limit the driving member 30 in both directions and on both sides, thereby constraining and hindering the axial movement of the driving member 30.

[0074] The spacing between the limiting portion 21 and the fixing portion 112 can be greater than, equal to, or slightly less than the thickness of the driver 30. When the spacing between the limiting portion 21 and the fixing portion 112 is equal to or slightly less than the thickness of the driver 30, the limiting portion 21 and the fixing portion 112 can completely limit the axial movement of the driver 30. A certain frictional force exists between the limiting portion 21 and the driver 30, and between the fixing portion 112 and the driver 30. The frictional force can lock the driver 30 to limit the rotation of the driver 30, thereby limiting the self-reset of the adjusting member 40 and the tuning portion 111 after adjustment. In this case, the tuning portion 111 can be made of a plastic metal material that is deformable and does not automatically rebound after deformation, or it can be made of an elastic metal material that is deformable and can automatically rebound after deformation. When the spacing between the limiting portion 21 and the fixing portion 112 is greater than the thickness of the driving member 30, the driving member 30 is allowed to idle between the limiting portion 21 and the fixing portion 112 and to undergo a small axial movement. The limiting portion 21 can play a limiting role when the driving member 30 abuts against it, preventing the driving member 30 from moving in a direction close to the limiting portion 21. The fixing portion 112 can play a limiting role when the driving member 30 abuts against it, preventing the driving member 30 from moving in a direction away from the limiting portion 21. In this case, the tuning portion 111 can be made of a deformable plastic metal material that does not automatically rebound after deformation, so that the tuning portion 111 does not automatically restore its deformation after adjustment. In summary, the tuning portion 111 can be made of a plastic metal material that is deformable and does not automatically rebound after deformation; when the driving member 30 can be locked by friction and will not rotate after adjustment, and the rebound force of the tuning portion 111 will not break through the locking of the friction force and cause the driving member 30 to rotate, the tuning portion 111 can be made of an elastic metal material that is deformable and can automatically rebound after deformation.

[0075] It should also be noted that the driving member 30, the fixing portion 112 and the tuning portion 111 together enclose a concave cavity 113, and the concave cavity 113 can reserve deformation space for the tuning portion 111. The driving member 30 is provided with a threaded hole 31, and the threaded hole 31 passes through the driving member 30 along the thickness direction of the driving member 30. The outer periphery of the adjusting member 40 is provided with an external thread, and the adjusting member 40 is threadedly connected to the threaded hole 31. The end of the adjusting member 40 extending into the concave cavity 113 is fixed to the tuning portion 111, and the adjusting member 40 is restricted from rotating relative to the tuning portion 111 (that is, it has no rotational freedom). Among them, the adjusting member 40 can be connected and fixed to the tuning portion 111 by, but not limited to, welding, crimping, clamping, bonding, riveting, fastener connection, etc.; the adjusting member 40 can also be integrally formed and integrally connected with the tuning portion 111, that is, the adjusting member 40 can be an integrated structure with the tuning portion 111.

[0076] The adjusting member 40 can be connected to the side of the tuning portion 111 facing away from the resonant cavity 13 (eg Figure 2(as shown in the figure). In this case, the adjustment member 40 can be made of either metal or non-metal. The adjustment member 40 can also be passed through the tuning portion 111 and connected to the side of the tuning portion 111 facing the resonant cavity 13 (not shown in the figure). In this case, since the tuning portion 111 must have a through hole for the adjustment member 40 to pass through, the adjustment member 40 should be made of metal to prevent the signal within the resonant cavity 13 from leaking through the through hole of the tuning portion 111.

[0077] It should also be noted that the limiting portion 21 is provided with an exposure hole 211 that extends through the limiting portion 21 along its thickness. The exposure hole 211 can be circular, rectangular, a discontinuous annular hole, an arc-shaped hole, or the like. A portion of the driver 30 is exposed in the exposure hole 211, allowing force to be applied to the driver 30 through the exposure hole 211 during the tuning process, thereby driving the driver 30 to rotate.

[0078] In some embodiments, a portion of the driver 30 and the adjustment member 40 may be exposed in the exposure hole 211. The adjustment member 40 and the portion of the driver 30 may be exposed in different exposure holes 211, or the adjustment member 40 and the portion of the driver 30 may be exposed in the same exposure hole 211. When the adjustment member 40 is exposed in the exposure hole 211, the exposure hole 211 can reserve space for axial movement of the adjustment member 40.

[0079] Of course, in other embodiments, only a portion of the driving member 30 may be exposed in the exposure hole 211, and the adjusting member 40 may not be exposed in the exposure hole 211. That is, the portion of the limiting portion 21 corresponding to the adjusting member 40 does not have a hole structure, and the axial movement space of the adjusting member 40 is closed by the limiting portion 21. In this case, the exposure hole 211 may be an arc-shaped hole or a discontinuous annular hole provided around the adjusting member 40.

[0080] The resonator provided in the embodiment of the present application can limit the driving member 30 toward one side thereof by the limiting portion 21 of the limiting member 20, and can also limit the driving member 30 toward one side thereof by the fixing portion 112 of the cover plate 11, thereby achieving bidirectional and double-sided limiting of the driving member 30. Based on this, when the driving member 30 is rotated so that the driving member 30 has a tendency to move in a direction away from the limiting portion 21, the fixing portion 112 can be used to limit and stop the driving member 30 from moving in a direction away from the limiting portion 21, so that the rotation of the driving member 30 can drive the adjusting member 40 to move axially along the threaded hole 31 toward the limiting portion 21, thereby causing the adjusting member 40 to drive the tuning portion 111 to deform in a direction toward the limiting portion 21, thereby adjusting the resonant frequency. On the contrary, when the driving member 30 is rotated so that the driving member 30 has a tendency to move in the direction close to the limit portion 21, the limit portion 21 can be used to stop the driving member 30 from moving in the direction close to the limit portion 21, so that the rotation of the driving member 30 can drive the adjusting member 40 to move axially along the threaded hole 31 in the direction away from the limit portion 21, thereby causing the adjusting member 40 to drive the tuning portion 111 to deform in the direction away from the limit portion 21, thereby adjusting the resonant frequency.

[0081] Thus, the resonator provided in the embodiment of the present application can cause the tuning portion 111 of the cover plate 11 to deform in a direction closer to the limiting portion 21 or in a direction away from the limiting portion 21, thereby achieving an increase or decrease in the resonant frequency, achieving bidirectional tuning, and with relatively low difficulty. The tuning operation is simple, stable, and controllable. In particular, since the driver 30 does not need to adopt the avoidance opening and peripheral flange structures used in the prior art during assembly, the driver 30 and the limiting member 20 can form a regular, complete annular structure, and the limiting member 20 can form a complete limit for the driver 30. Therefore, the driver 30 will not dislodge during rotation, and the rotational travel of the driver 30 will not be limited by "dislodgement", thereby enabling a larger tuning amount for a single rotation of the driver 30 and a more stable and controllable tuning process.

[0082] Furthermore, the position-limiting member 20 of the present application is separately connected to the cover plate 11. Compared with the prior art, there is no need to integrally form a groove structure for accommodating the driver 30 on the cover plate 11, thereby reducing the difficulty of processing the cover plate 11 and improving the processing convenience and efficiency of the cover plate 11. Furthermore, the driver 30 of the present application can be directly installed between the fixing portion 112 and the position-limiting member 20. Compared with the prior art, there is no need to carry out the complex and tedious assembly process of "first aligning the peripheral flange of the driver with the avoidance opening, and then snapping the driver into the groove structure of the cover plate for accommodating the driver", nor is there any need to use specific installation tools to complete the assembly, thereby reducing the difficulty of assembling the driver 30 and improving the assembly convenience and efficiency of the driver 30.

[0083] like Figure 4As shown, in one possible embodiment, a resonant rod 50 can be accommodated in the resonant cavity 13. The resonant rod 50 is connected and fixed to the plate of the resonator housing 10 opposite to the cover plate 11, and is spaced apart from the tuning portion 111. In this case, the tuning portion 111 can be deformed by force to change the distance between the tuning portion 111 and the resonant rod 50, thereby adjusting the capacitance between the tuning portion 111 and the resonant rod 50, thereby adjusting the resonant frequency.

[0084] like Figure 5 As shown, in another possible embodiment, a resonant rod 50 may be accommodated in the resonant cavity 13. The resonant rod 50 is connected and fixed to the tuning portion 111. In this case, the tuning portion 111 can be deformed by force to change the distance between the end of the resonant rod 50 away from the tuning portion 111 and the corresponding inner wall of the resonator housing 10, thereby adjusting the capacitance between the end of the resonant rod 50 away from the tuning portion 111 and the corresponding inner wall of the resonator housing 10, thereby adjusting the resonant frequency.

[0085] The resonant rod 50 may be connected and fixed to the resonator housing 10 by, but not limited to, integral connection, welding, screw fastening, threaded connection, riveting, pressing, or clamping. The resonant rod 50 may be a metal resonant rod, a ceramic dielectric resonant rod, or a dielectric resonant rod made of other materials; the resonant rod 50 may be a hollow resonant rod or a solid resonant rod; the resonant rod 50 may be provided with or without a resonant disk; the resonant disk may be provided with or without a flange; the resonant rod 50 may be a round rod, a polygonal rod, a special-shaped rod, a sheet-shaped resonant rod, a sheet metal resonant rod, or a resonant rod of other shapes, etc.

[0086] See also Figure 6 In some embodiments of the present application, a friction member 60 is provided between the limiting portion 21 and the driving member 30 .

[0087] It should be noted that the friction member 60 may be a component that can provide friction, such as a gasket, asbestos, or ceramics. The friction member 60 may be a metal member or a non-metal member.

[0088] In one possible embodiment, the limiting portion 21, the friction member 60, and the driving member 30 abut one another in a natural state, so that a relatively high friction force is always present between the limiting portion 21 and the driving member 30 due to the friction member 60. In another possible embodiment, a gap exists between the limiting portion 21, the friction member 60, and the driving member 30 in a natural state. During the tuning process, the driving member 30 can idle and move toward the limiting portion 21 until the limiting portion 21, the friction member 60, and the driving member 30 abut one another in a natural state. At this point, a relatively high friction force can be present between the limiting portion 21 and the driving member 30 due to the friction member 60.

[0089] By adopting the above solution, by disposing the friction member 60 between the limiting portion 21 and the driving member 30, when the limiting portion 21, the friction member 60, and the driving member 30 are in sequential contact, a greater friction force can be generated between the limiting portion 21 and the driving member 30 due to the friction member 60. Based on this, when the limiting portion 21, the friction member 60, and the driving member 30 are in sequential contact, the risk of the driving member 30 loosening (i.e., rotating on its own) in a non-adjusted state (i.e., a state where the driving member 30 is not rotated by an external force, such as an initial state where the tuning portion 111 has not deformed, a debugging state where the deformation of the tuning portion 111 has been adjusted, etc.) can be reduced, thereby reducing the risk of the deformation of the tuning portion 111 changing due to loosening of the driving member 30, thereby improving the accuracy of the tuning effect and the stability of the resonator indicators. In particular, when there is no gap between the limiting part 21, the friction part 60, and the driving part 30 and they are always in contact with each other, the existence of friction force can enable the driving part 30 to remain smooth and stable during the rotation process, thereby improving the rotation smoothness and controllability of the rotation stroke of the driving part 30, reducing the situation of excessive rotation of the driving part 30, and improving the controllability and adjustment stability of the tuning operation.

[0090] See also Figure 6 In some embodiments of the present application, a friction member 60 is provided between the driving member 30 and the fixing portion 112 .

[0091] It should be noted that in one possible embodiment, the driving member 30, the friction member 60, and the fixed portion 112 are in sequential contact in a natural state, so that a relatively high friction force is always present between the driving member 30 and the fixed portion 112 due to the friction member 60. In another possible embodiment, a gap exists between the driving member 30, the friction member 60, and the fixed portion 112 in a natural state. During the tuning process, the driving member 30 can idle and move toward the fixed portion 112 until the driving member 30, the friction member 60, and the fixed portion 112 are in sequential contact. At this point, a relatively high friction force can be present between the driving member 30 and the fixed portion 112 due to the friction member 60.

[0092] By adopting the above solution, by disposing the friction member 60 between the driver 30 and the fixed portion 112, a greater frictional force can be generated between the driver 30 and the fixed portion 112 due to the friction member 60 when the driver 30, the friction member 60, and the fixed portion 112 are in sequential contact. Therefore, when the driver 30, the friction member 60, and the fixed portion 112 are in sequential contact, the frictional force can be used to reduce the risk of the driver 30 becoming loose in an unadjusted state. This can also reduce the risk of the deformation of the tuning portion 111 changing due to loosening of the driver 30, thereby improving the accuracy of the tuning effect and the stability of the resonator's performance. In particular, when there is no gap between the driving member 30, the friction member 60, and the fixing portion 112 and they are always in contact with each other, the existence of friction can enable the driving member 30 to remain smooth and stable during the rotation process, thereby improving the rotation smoothness and controllability of the rotation stroke of the driving member 30, reducing the situation of excessive rotation of the driving member 30, and improving the controllability and adjustment stability of the tuning operation.

[0093] See also Figure 2 In some embodiments of the present application, the side of the limiting portion 21 facing the driving member 30 has a rough area.

[0094] It should be noted that a rough area is an area with greater roughness. In some embodiments, the rough area may be subjected to surface treatment (e.g., sandblasting, shot blasting, laser roughening, chemical etching, etc.) to increase the roughness of the rough area. In other embodiments, the rough area may be provided with rough structures such as ridges, ridges, ridges, grooves, etc. to increase the roughness of the rough area.

[0095] The side of the limiting portion 21 facing the driver 30, particularly the area of this side that abuts the driver 30, has a roughened area. In one possible embodiment, the roughened area of the limiting portion 21 abuts the driver 30 in a natural state, resulting in a constant high friction force between the limiting portion 21 and the driver 30 due to the roughened area. In another possible embodiment, a gap exists between the limiting portion 21 and the driver 30 in a natural state. The driver 30 can idle during the tuning process and move toward the limiting portion 21 until it abuts the roughened area of the limiting portion 21. At this point, the roughened area allows for a high friction force between the limiting portion 21 and the driver 30.

[0096] By adopting the above solution, by providing a rough area on the side of the limiting portion 21 facing the driver 30, when the limiting portion 21 and the driver 30 are in contact, a greater friction force can be generated between the limiting portion 21 and the driver 30 due to the rough area. Based on this, when the limiting portion 21 and the driver 30 are in contact, the risk of the driver 30 loosening in the non-adjusted state can be reduced due to the friction force, thereby reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driver 30, and improving the accuracy of the tuning effect and the stability of the resonator index. In particular, when there is no gap between the limiting portion 21 and the driver 30 and they are always in contact, the existence of the friction force can prompt the driver 30 to remain stable and steady during the rotation process, thereby improving the rotational stability and rotational stroke controllability of the driver 30, reducing the situation of excessive rotation of the driver 30, and improving the controllability and adjustment stability of the tuning operation.

[0097] See also Figure 2 In some embodiments of the present application, the side of the driving member 30 facing the limiting portion 21 has a rough area.

[0098] It should be noted that the side of the driving member 30 facing the limiting portion 21, in particular the area of the side that is used to abut the limiting portion 21, has a rough area. In one possible embodiment, the rough area of the driving member 30 is already in abutment with the limiting portion 21 in a natural state, so that there is always a large friction force between the driving member 30 and the limiting portion 21 due to the rough area. In another possible embodiment, there is a gap between the driving member 30 and the limiting portion 21 in a natural state. The driving member 30 can idle during the tuning process and move in a direction close to the limiting portion 21 to a state of "abutting against the limiting portion 21". At this time, there can be a large friction force between the driving member 30 and the limiting portion 21 due to the rough area.

[0099] By adopting the above solution, by providing a rough area on the side of the driver 30 facing the limit portion 21, when the driver 30 and the limit portion 21 are in contact, a greater friction force can be generated between the driver 30 and the limit portion 21 due to the rough area. Based on this, when the driver 30 and the limit portion 21 are in contact, the risk of the driver 30 loosening in the non-adjusted state can be reduced based on the friction force, thereby reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driver 30, and improving the accuracy of the tuning effect and the stability of the resonator index. In particular, when there is no gap between the driver 30 and the limit portion 21 and they are always in contact, the existence of the friction force can prompt the driver 30 to remain stable and steady during the rotation process, thereby improving the rotational stability and rotational stroke controllability of the driver 30, reducing the situation of excessive rotation of the driver 30, and improving the controllability and adjustment stability of the tuning operation.

[0100] See also Figure 2 In some embodiments of the present application, the side surface of the driving member 30 facing the fixing portion 112 has a rough area.

[0101] It should be noted that the side of the driving member 30 facing the fixed portion 112, in particular the area of the side used for contact with the fixed portion 112, has a rough area. In one possible embodiment, the rough area of the driving member 30 is already in contact with the fixed portion 112 in a natural state, so that there is always a large friction force between the driving member 30 and the fixed portion 112 due to the rough area. In another possible embodiment, there is a gap between the driving member 30 and the fixed portion 112 in a natural state. The driving member 30 can idle during the tuning process and move in a direction close to the fixed portion 112 to a state of "contact with the fixed portion 112". At this time, there can be a large friction force between the driving member 30 and the fixed portion 112 due to the rough area.

[0102] By adopting the above solution, by providing a rough area on the side of the driver 30 facing the fixed portion 112, when the driver 30 and the fixed portion 112 are in contact, a greater friction force can be generated between the driver 30 and the fixed portion 112 due to the rough area. Based on this, when the driver 30 and the fixed portion 112 are in contact, the risk of the driver 30 loosening in the non-adjusted state can be reduced due to the friction force, thereby reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driver 30, and improving the accuracy of the tuning effect and the stability of the resonator index. In particular, when there is no gap between the driver 30 and the fixed portion 112 and they are always in contact, the presence of friction can prompt the driver 30 to remain stable and steady during rotation, thereby improving the rotational stability and rotational stroke controllability of the driver 30, reducing the situation where the driver 30 rotates excessively, and improving the controllability and adjustment stability of the tuning operation.

[0103] See also Figure 2 In some embodiments of the present application, the side of the fixing portion 112 facing the driving member 30 has a rough area.

[0104] It should be noted that the side of the fixing portion 112 facing the driver 30, particularly the area of this side that is intended to abut the driver 30, has a roughened area. In one possible embodiment, the roughened area of the fixing portion 112 and the driver 30 are already in contact in a natural state, so that there is always a high friction force between the fixing portion 112 and the driver 30 due to the roughened area. In another possible embodiment, there is a gap between the fixing portion 112 and the driver 30 in a natural state. The driver 30 can idle during the tuning process and move toward the fixing portion 112 until it "abuts against the fixing portion 112." At this time, there can be a high friction force between the fixing portion 112 and the driver 30 due to the roughened area.

[0105] By adopting the above solution, by providing a rough area on the side of the fixing portion 112 facing the driver 30, when the fixing portion 112 and the driver 30 are in contact, a greater friction force can be generated between the fixing portion 112 and the driver 30 due to the rough area. Based on this, when the fixing portion 112 and the driver 30 are in contact, the friction force can reduce the risk of the driver 30 loosening in the non-adjusted state, thereby reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driver 30, and improving the accuracy of the tuning effect and the stability of the resonator index. In particular, when there is no gap between the fixing portion 112 and the driver 30 and they are always in contact, the presence of friction can prompt the driver 30 to remain stable and steady during rotation, thereby improving the rotational smoothness and controllability of the driver 30, reducing the situation of excessive rotation of the driver 30, and improving the controllability and adjustment stability of the tuning operation.

[0106] See also Figure 2 In some embodiments of the present application, the distance between the limiting portion 21 and the fixing portion 112 is equal to or less than the thickness of the driving member 30 .

[0107] It should be noted that the spacing between the limiting portion 21 and the fixing portion 112 is equal to the thickness of the driving member 30, so that the driving member 30 fits between the limiting portion 21 and the fixing portion 112 with zero clearance. Alternatively, the spacing between the limiting portion 21 and the fixing portion 112 is slightly smaller than the thickness of the driving member 30, so that the driving member 30 fits between the limiting portion 21 and the fixing portion 112 with an interference fit.

[0108] By adopting the above solution, the driving member 30 can be made to have a zero-clearance fit or an interference fit between the limiting portion 21 and the fixing portion 112. Based on this, regardless of whether in the natural state, the rotation adjustment state of the driving member 30, or the non-adjustment state of the driving member 30, the limiting portion 21, the driving member 30, and the fixing portion 112 all abut against each other in sequence and generate friction, making it difficult for the driving member 30 to rotate on its own or to loosen, thereby reducing the risk of the driving member 30 loosening in the non-adjustment state, reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driving member 30, and improving the accuracy of the tuning effect and the stability of the resonator indicators. Furthermore, compared to a solution in which the driver 30 is loosely fitted between the limiting portion 21 and the fixing portion 112, this embodiment can completely limit the axial movement of the driver 30 based on the limiting portion 21 and the fixing portion 112. The rotational resistance provided by the mutual friction can be utilized to make the driver 30 more stable during rotation, less prone to loosening, and prevent idling. This can enable the driver 30 to stably drive the tuning portion 111 to deform in both directions, thereby improving the rotational smoothness and controllability of the driver 30's rotational stroke, reducing the occurrence of excessive rotation of the driver 30, and improving the controllability, adjustment stability, and adjustment continuity of the tuning operation. Furthermore, the friction member 60 can be omitted between the limiting portion 21 and the driver 30, and between the driver 30 and the fixing portion 112, thereby reducing the number of components. Furthermore, since the driving member 30 is subjected to both the rotational resistance provided by friction and the clamping force of the limiting portion 21 and the fixing portion 112, the rotation and axial movement of the driving member 30 can be completely restricted when the operator does not apply force to the driving member 30. Therefore, when the driving member 30 is in the "debugging completed state in which the deformation of the tuning portion 111 is adjusted", the driving member 30 will not rotate due to the rebound force generated by the tuning portion 111, nor will it move axially due to the rebound force generated by the tuning portion 111. That is, through this embodiment, the driving member 30 can be prevented from rotating. Rotation and axial movement, thereby preventing the tuning part 111 from rebounding after deformation, can make the driving member 30 always maintain the state of applying force to the adjusting member 40, can make the adjusting member 40 always maintain the state of applying force to the tuning part 111, and will not cause the tuning part 111 to lack continuous force and rebound after debugging is completed due to "the driving member 30 is loosely fitted between the limiting part 21 and the fixing part 112". The deformation amount of the tuning part 111 can be stably maintained in the debugging completion state, which can improve the accuracy of the tuning effect and the stability of the resonator indicators.

[0109] This embodiment is suitable for application in combination with the related embodiments of the “rough area”.

[0110] Of course, in other embodiments, the spacing between the limiting portion 21 and the fixing portion 112 may be greater than the thickness of the driving member 30, so that the driving member 30 is loosely fitted between the limiting portion 21 and the fixing portion 112. In this case, the driving member 30 may idle between the limiting portion 21 and the fixing portion 112 during the tuning process and undergo a small axial movement. The limiting portion 21 may function as a limiter and generate contact friction when the driving member 30 abuts against it, and the fixing portion 112 may function as a limiter and generate contact friction when the driving member 30 abuts against it.

[0111] See also Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 In some embodiments of the present application, the fixing portion 112 includes a first ring portion 1121, a second ring portion 1122, and a third ring portion 1123, arranged sequentially outward from the tuning portion 111. The first ring portion 1121 and the limiting portion 21 jointly limit the position of the driving member 30. On the side near the limiting member 20, at least one of the first ring portion 1121 and the third ring portion 1123 protrudes from the second ring portion 1122 and, together with the second ring portion 1122, forms a stepped groove 1124. A portion of the limiting member 20 is mounted in the stepped groove 1124 and is fixedly connected to the inner wall of the stepped groove 1124.

[0112] It should be noted that the fixing portion 112 includes a first ring portion 1121 , a second ring portion 1122 and a third ring portion 1123 . The first ring portion 1121 surrounds the outer circumference of the tuning portion 111 . The first ring portion 1121 , the second ring portion 1122 and the third ring portion 1123 are sequentially arranged and sleeved from the inside to the outside.

[0113] like Figure 9 As shown, in a possible embodiment, on the side close to the limit member 20 (i.e., the side facing away from the resonant cavity 13), only the first ring portion 1121 may protrude from the second ring portion 1122 (i.e., the first ring portion 1121 protrudes from the side of the second ring portion 1122 close to the limit member 20), so that the first ring portion 1121 and the second ring portion 1122 are stepped, so that the first ring portion 1121 and the second ring portion 1122 are surrounded to form a stepped groove 1124. In this case, the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the stepped groove 1124, and the annular surface of the first ring portion 1121 close to the second ring portion 1122 forms the groove wall of the stepped groove 1124.

[0114] like Figure 7 、 Figure 8As shown, in another possible embodiment, on the side close to the limit member 20, only the third ring portion 1123 may protrude from the second ring portion 1122 (that is, the third ring portion 1123 protrudes from the side of the second ring portion 1122 close to the limit member 20), so that the third ring portion 1123 and the second ring portion 1122 are stepped, so that the third ring portion 1123 and the second ring portion 1122 are surrounded by a stepped groove 1124. In this case, the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the stepped groove 1124, and the annular surface of the third ring portion 1123 close to the second ring portion 1122 forms the groove wall of the stepped groove 1124.

[0115] like Figure 2 As shown, in another possible embodiment, on the side close to the limit member 20, the first ring portion 1121 and the third ring portion 1123 may both protrude from the second ring portion 1122, so that the first ring portion 1121 and the second ring portion 1122 are stepped, and the third ring portion 1123 and the second ring portion 1122 are also stepped, so that the third ring portion 1123, the second ring portion 1122, and the first ring portion 1121 are jointly enclosed to form a stepped groove 1124. In this case, the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the stepped groove 1124, and the annular surface of the first ring portion 1121 close to the second ring portion 1122 and the annular surface of the third ring portion 1123 close to the second ring portion 1122 form the opposite groove walls of the stepped groove 1124.

[0116] The stopper 20 is partially installed in the stepped groove 1124. The stopper 20 is fixedly connected to the inner wall of the stepped groove 1124. The inner wall of the stepped groove 1124 includes the groove wall 1124 and the groove bottom 1124. The stopper 20 and the inner wall of the stepped groove 1124 can be connected and fixed by, but are not limited to, crimping, plugging, welding, bonding, threading, clamping, etc.

[0117] By adopting the above solution, the fixing portion 112 can be provided with a stepped groove 1124 to position, install, and connect the fixed limiter 20. Based on this, the convenience and reliability of the separate connection between the fixing portion 112 and the limiter 20 can be improved. In addition, compared with the solution of "the limiter 20 reserves sufficient radial dimensions to be directly fixed to the outer surface of the fixing portion 112 facing the limiter 20", this embodiment can transfer the connection area between the fixing portion 112 and the limiter 20 from the outer surface of the fixing portion 112 to the inner wall of the stepped groove 1124, thereby reducing the radial dimensions of the limiter 20 and the area proportion of the limiter 20 on the outer surface of the cover plate 11 without compressing the connection area and connection area between the fixing portion 112 and the limiter 20, thereby facilitating the miniaturization and lightweighting of the resonator.

[0118] Of course, in other embodiments, the fixing portion 112 may not be provided with the stepped groove 1124, and the side of the limiting member 20 facing the cover plate 11 may be directly fixed to the side of the fixing portion 112 facing the limiting member 20. For example, the limiting member 20 may be a flat plate or a plate with steps, and the edge of the limiting member 20 may be connected and fixed to the fixing portion 112 by screw connection, welding (such as laser welding), glue bonding, etc. Specifically, on the side close to the limiting member 20, when the driving member 30 does not protrude from the fixing portion 112, the limiting member 20 may be a flat plate-like structure; on the side close to the limiting member 20, when the driving member 30 protrudes from the fixing portion 112, the limiting member 20 may be a plate-like structure with a protruding middle portion and a step, the protruding portion of the limiting member 20 is arranged corresponding to the driving member 30, the edge of the limiting member 20 is lower than the protruding portion, and the edge of the limiting member 20 is fixed to the side of the fixing portion 112 facing the limiting member 20.

[0119] See also Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 In some embodiments of the present application, the limiting member 20 includes a mounting portion 22, which is connected to the outer periphery of the limiting portion 21 and bent toward a side close to the driving member 30. The mounting portion 22 is installed in the stepped groove 1124 and is fixedly connected to the inner wall of the stepped groove 1124.

[0120] It should be noted that the limiting member 20 includes a limiting portion 21 and an installation portion 22. The installation portion 22 is bent and connected to the outer periphery of the limiting portion 21. The installation portion 22 is bent relative to the limiting portion 21 toward the side close to the driving member 30, so that the limiting member 20 is in the shape of a cap with a flange.

[0121] The mounting portion 22 can be inserted into and installed in the stepped groove 1124 of the fixing portion 112. The mounting portion 22 is connected and fixed to the inner wall of the stepped groove 1124. The outer peripheral wall of the mounting portion 22 can be fixed to the groove wall of the stepped groove 1124, the inner peripheral wall of the mounting portion 22 can be fixed to the groove wall of the stepped groove 1124, or the end surface of the mounting portion 22 away from the limiting portion 21 can be fixed to the groove bottom of the stepped groove 1124.

[0122] By adopting the above solution, the position-limiting member 20 can be inserted and installed in the stepped groove 1124 of the fixing portion 112 via the mounting portion 22, which is bent relative to the position-limiting portion 21 toward the side close to the driving member 30, and is connected and fixed to the inner wall of the stepped groove 1124. Based on this, the structure of the position-limiting member 20 can be optimized, and the connection convenience between the position-limiting member 20 and the stepped groove 1124 of the fixing portion 112 can be improved, which is conducive to increasing the connection area between the position-limiting member 20 and the stepped groove 1124, and is conducive to enhancing the connection strength, connection reliability, and connection stability between the position-limiting member 20 and the stepped groove 1124. In addition, it is also conducive to reducing the thickness of the cover plate 11, thereby facilitating the miniaturization and lightweighting of the resonator.

[0123] See also Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 In some embodiments of the present application, the inner peripheral wall of the mounting portion 22 is spaced apart from the outer peripheral wall of the driving member 30 .

[0124] When the mounting portion 22 is installed in the stepped groove 1124, by spacing the inner peripheral wall of the mounting portion 22 from the outer peripheral wall of the driving member 30, the risk of assembly interference and over-assembly between the mounting portion 22 and the driving member 30 can be reduced, the interference on the periphery of the driving member 30 can be reduced, the risk of the rotation of the driving member 30 being interfered with by the mounting portion 22 can be reduced, and a certain range of processing errors and assembly errors can be compatible (allowed) between the mounting portion 22 and the driving member 30, thereby improving the assembly convenience and assembly yield between the limit member 20 and the driving member 30.

[0125] Of course, in other embodiments, if the processing accuracy of the driving member 30 (especially the outer peripheral wall of the driving member 30) is high, the processing accuracy of the mounting portion 22 (especially the inner peripheral wall of the mounting portion 22) is high, and the rounded transition between the mounting portion 22 and the limiting portion 21 is omitted, then the inner peripheral wall of the mounting portion 22 and the outer peripheral wall of the driving member 30 can be set to zero gap.

[0126] See also Figure 2 、 Figure 7 、 Figure 8 In some embodiments of the present application, on the side close to the stopper 20, the third ring portion 1123 protrudes from the second ring portion 1122 and forms a stepped groove 1124 with the second ring portion 1122. The outer peripheral wall of the mounting portion 22 is connected and fixed to the third ring portion 1123.

[0127] It should be noted that, on the side close to the limit member 20, the third ring portion 1123 protrudes from the second ring portion 1122, so that the third ring portion 1123 and the second ring portion 1122 are stepped, so that the third ring portion 1123 and the second ring portion 1122 are surrounded by a step groove 1124, and the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the step groove 1124, and the annular surface of the third ring portion 1123 close to the second ring portion 1122 forms the groove wall of the step groove 1124, and the annular surface of the third ring portion 1123 away from the edge of the second ring portion 1122 forms the notch of the step groove 1124. In this case, the limiting member 20 can be inserted and installed in the stepped groove 1124 through the mounting portion 22 that is bent relative to the limiting portion 21 toward the side close to the driving member 30, and the outer peripheral wall of the mounting portion 22 can be connected and fixed to the groove wall of the stepped groove 1124 (that is, the annular surface of the third ring portion 1123 close to the second ring portion 1122).

[0128] By adopting the above solution, the fixing portion 112 can be enclosed by the third ring portion 1123 and the second ring portion 1122 to form a stepped groove 1124, so that the mounting portion 22 of the stopper 20 can be inserted and installed in the stepped groove 1124. The groove wall of the stepped groove 1124 can also be formed by the annular surface of the third ring portion 1123 close to the second ring portion 1122 to connect and fix with the outer peripheral wall of the mounting portion 22. Based on this, the connection convenience and connection reliability of the stepped groove 1124 and the mounting portion 22 can be improved. In addition, the connection area of the stepped groove 1124 and the mounting portion 22 can be avoided by the first ring portion 1121. The third ring portion 1123 can be flexibly designed to protrude, be flush with, or be recessed in the first ring portion 1121 on the side close to the stopper 20. The thickness of the third ring portion 1123, the connection area between the stepped groove 1124 and the mounting portion 22, the shape of the fixing portion 112, etc. can be flexibly designed, resulting in a more flexible design. In particular, the third ring portion 1123 can be designed to protrude from the first ring portion 1121 on the side close to the limit member 20 to increase the connection area between the step groove 1124 and the mounting portion 22, thereby enhancing the connection strength, connection reliability and connection stability between the step groove 1124 and the mounting portion 22.

[0129] See also Figure 2 In some embodiments of the present application, the second ring portion 1122 is recessed in the first ring portion 1121 on the side close to the stopper 20. That is, on the side close to the stopper 20, the side of the second ring portion 1122 close to the stopper 20 is lower than the side of the first ring portion 1121 facing the driving member 30. In other words, the first ring portion 1121 protrudes from the side of the second ring portion 1122 close to the stopper 20.

[0130] By adopting the above solution, when the third ring portion 1123 and the second ring portion 1122 enclose the stepped groove 1124, and the outer peripheral wall of the mounting portion 22 is connected and fixed to the third ring portion 1123, by recessing the second ring portion 1122 into the first ring portion 1121 on the side close to the limiter 20, the depth of the stepped groove 1124 formed by the third ring portion 1123 and the second ring portion 1122 can be increased accordingly, and the connection area between the stepped groove 1124 and the mounting portion 22 can be increased, thereby enhancing the connection strength, connection reliability and connection stability between the stepped groove 1124 and the mounting portion 22. In addition, the space formed by the thickness difference between the third ring portion 1123 and the first ring portion 1121 can be fully utilized to arrange the driving member 30, and the space of the cover plate 11 can be fully utilized, which is conducive to compressing the height of the resonator and facilitating the miniaturization and lightweighting of the resonator.

[0131] See also Figure 7 In some embodiments of the present application, the second ring portion 1122 is flush with the first ring portion 1121 on the side close to the stopper 20. That is, on the side close to the stopper 20, the side of the second ring portion 1122 close to the stopper 20 is flush with the side of the first ring portion 1121 facing the driving member 30.

[0132] By adopting the above-mentioned scheme, when the third ring portion 1123 and the second ring portion 1122 are enclosed to form the stepped groove 1124 and the outer peripheral wall of the mounting portion 22 is connected and fixed to the third ring portion 1123, the second ring portion 1122 is made flush with the first ring portion 1121 on the side close to the limiting member 20, and the extension length of the mounting portion 22 along the thickness direction of the driving member 30 can be made to basically correspond to the thickness of the driving member 30, and the combined thickness of the driving member 30 and the limiting member 20 can be compressed, which is beneficial to compressing the height of the resonator and is beneficial to the miniaturization and lightweight of the resonator.

[0133] Of course, if Figure 8 As shown, in other embodiments, the second ring portion 1122 may protrude from the first ring portion 1121 on the side close to the limiting member 20 , that is, the side of the second ring portion 1122 close to the limiting member 20 is higher than the side of the first ring portion 1121 facing the driving member 30 .

[0134] See also Figure 9 In some embodiments of the present application, on the side close to the stopper 20, the first ring portion 1121 protrudes from the second ring portion 1122 and forms a stepped groove 1124 with the second ring portion 1122. The inner peripheral wall of the mounting portion 22 is connected and fixed to the first ring portion 1121.

[0135] It should be noted that, on the side close to the limit member 20, the first ring portion 1121 protrudes from the second ring portion 1122, so that the first ring portion 1121 and the second ring portion 1122 are stepped, so that the first ring portion 1121 and the second ring portion 1122 are surrounded to form a stepped groove 1124, and the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the stepped groove 1124, and the annular surface of the first ring portion 1121 close to the second ring portion 1122 forms the groove wall of the stepped groove 1124, and the annular surface of the first ring portion 1121 away from the edge of the second ring portion 1122 forms the notch of the stepped groove 1124. In this case, the limiting member 20 can be inserted and installed in the stepped groove 1124 through the mounting portion 22 that is bent relative to the limiting portion 21 toward the side close to the driving member 30, and the inner peripheral wall of the mounting portion 22 can be connected and fixed to the groove wall of the stepped groove 1124 (that is, the annular surface of the first ring portion 1121 close to the second ring portion 1122).

[0136] By adopting the above solution, the fixing portion 112 can be enclosed by the first ring portion 1121 and the second ring portion 1122 to form a stepped groove 1124, so that the mounting portion 22 of the limiting member 20 can be inserted and installed in the stepped groove 1124. The groove wall of the stepped groove 1124 can also be formed by the annular surface of the first ring portion 1121 close to the second ring portion 1122 to be connected and fixed to the inner circumferential wall of the mounting portion 22. Based on this, the connection convenience and connection reliability between the stepped groove 1124 and the mounting portion 22 can be improved. In addition, the connection area between the mounting portion 22 and the stepped groove 1124 can be close to the first ring portion 1121 and avoid the third ring portion 1123, which is conducive to reducing the radial size of the limiting member 20 and the radial size of the cover plate 11, thereby facilitating the miniaturization and lightweighting of the resonator.

[0137] See also Figure 9 In some embodiments of the present application, the third ring portion 1123 is flush with the second ring portion 1122 on the side close to the stopper 20. That is, on the side close to the stopper 20, the third ring portion 1123 is flush with the side surface of the second ring portion 1122 close to the stopper 20.

[0138] When the first ring portion 1121 and the second ring portion 1122 enclose a stepped groove 1124, and the inner circumferential wall of the mounting portion 22 is fixedly connected to the first ring portion 1121, the connection area between the mounting portion 22 and the stepped groove 1124 is independent of the third ring portion 1123. Therefore, by aligning the third ring portion 1123 with the second ring portion 1122 on the side closest to the stopper 20, the thickness of the third ring portion 1123 can be reduced, thereby reducing the weight of the cover plate 11 and facilitating the miniaturization and lightweighting of the resonator.

[0139] See also Figure 10In some embodiments of the present application, on the side close to the stopper 20, the third ring portion 1123 protrudes from the second ring portion 1122 and forms a stepped groove 1124 with the second ring portion 1122. The outer peripheral wall of the stopper 20 is connected and fixed to the third ring portion 1123. The stopper 20 is a flat plate-like structure.

[0140] It should be noted that, on the side close to the limit member 20, the third ring portion 1123 protrudes from the second ring portion 1122, so that the third ring portion 1123 and the second ring portion 1122 are stepped, so that the third ring portion 1123 and the second ring portion 1122 are surrounded by a step groove 1124, and the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the step groove 1124, and the annular surface of the third ring portion 1123 close to the second ring portion 1122 forms the groove wall of the step groove 1124, and the annular surface of the third ring portion 1123 away from the edge of the second ring portion 1122 forms the notch of the step groove 1124.

[0141] In this case, the position-limiting member 20 can be a flat plate-like structure, that is, the position-limiting member 20 only includes the position-limiting portion 21 and does not include the mounting portion 22. The portion of the position-limiting portion 21 that extends circumferentially beyond the driving member 30 can be flatly installed in the stepped groove 1124, and the outer peripheral wall of the position-limiting portion 21 can be connected and fixed to the groove wall of the stepped groove 1124 (that is, the annular surface of the third ring portion 1123 adjacent to the second ring portion 1122).

[0142] By adopting the above scheme, the fixing portion 112 can be enclosed by the third ring portion 1123 and the second ring portion 1122 to form a stepped groove 1124, so that the flat-plate-shaped limiting member 20 can be laid flat and installed in the stepped groove 1124. The groove wall of the stepped groove 1124 can also be formed by the annular surface of the third ring portion 1123 close to the second ring portion 1122 to be connected and fixed to the outer peripheral wall of the limiting portion 21. Based on this, the structure of the limiting member 20 can be simplified, the processing convenience and processing accuracy of the limiting member 20 can be improved, and the connection convenience, connection efficiency and connection reliability of the limiting member 20 and the stepped groove 1124 can be improved. In addition, compared with the next embodiment, this embodiment is conducive to reducing the combined thickness of the cover plate 11 and the limiting member 20, thereby facilitating the miniaturization and lightweighting of the resonator.

[0143] See also Figure 11 In some embodiments of the present application, on the side near the stopper 20, the third ring portion 1123 protrudes from the second ring portion 1122 and forms a stepped groove 1124 with the second ring portion 1122. The outer peripheral wall of the stopper 20 is fixedly connected to the third ring portion 1123. The stopper 20 includes a mounting portion 22, which is connected to the outer periphery of the stopper 21 and is bent toward the side away from the driving member 30.

[0144] It should be noted that, on the side close to the limit member 20, the third ring portion 1123 protrudes from the second ring portion 1122, so that the third ring portion 1123 and the second ring portion 1122 are stepped, so that the third ring portion 1123 and the second ring portion 1122 are surrounded by a step groove 1124, and the side of the second ring portion 1122 close to the limit member 20 forms the bottom of the step groove 1124, and the annular surface of the third ring portion 1123 close to the second ring portion 1122 forms the groove wall of the step groove 1124, and the annular surface of the third ring portion 1123 away from the edge of the second ring portion 1122 forms the notch of the step groove 1124.

[0145] In this case, the position-limiting member 20 may include a position-limiting portion 21 and a mounting portion 22. The mounting portion 22 is bent and connected to the outer periphery of the position-limiting portion 21. The mounting portion 22 is bent relative to the position-limiting portion 21 toward a side away from the driving member 30, so that the position-limiting member 20 has a cap-like shape with a flange. The mounting portion 22 of the position-limiting member 20 can be embedded in and mounted in the stepped groove 1124, and the outer peripheral wall of the mounting portion 22 can be connected and fixed to the groove wall of the stepped groove 1124 (i.e., the annular surface of the third ring portion 1123 adjacent to the second ring portion 1122).

[0146] By adopting the above scheme, the fixing portion 112 can be enclosed with the second ring portion 1122 through the third ring portion 1123 to form a stepped groove 1124, so that the mounting portion 22 of the limiting member 20 can be embedded and installed in the stepped groove 1124. The groove wall of the stepped groove 1124 can also be formed by the annular surface of the third ring portion 1123 close to the second ring portion 1122 to be connected and fixed to the outer peripheral wall of the mounting portion 22. Based on this, the connection convenience, connection efficiency and connection reliability of the limiting member 20 and the stepped groove 1124 can be improved. Moreover, compared with the previous embodiment, this embodiment can increase the connection area between the stepped groove 1124 and the limiting member 20, thereby enhancing the connection strength, connection reliability and connection stability between the stepped groove 1124 and the limiting member 20.

[0147] See also Figure 2 、 Figure 9 、 Figure 10 、 Figure 11 In some embodiments of the present application, the limiting member 20 is interference-fitted with the groove wall of the stepped groove 1124 .

[0148] It should be noted that if Figure 2 、 Figure 10 、 Figure 11As shown, in a possible embodiment, on the side close to the limit member 20, the third ring portion 1123 protrudes from the second ring portion 1122 and is surrounded by the second ring portion 1122 to form a stepped groove 1124. The limit member 20 can be in the form of a flat plate or a cap with a flange. The outer peripheral wall of the limit member 20 and the groove wall of the stepped groove 1124 (that is, the annular surface of the third ring portion 1123 close to the second ring portion 1122) are interference fit to achieve connection and fixation.

[0149] like Figure 9 As shown, in another possible embodiment, on the side close to the limit member 20, the first ring portion 1121 protrudes from the second ring portion 1122 and is surrounded by the second ring portion 1122 to form a stepped groove 1124. The limit member 20 is in the shape of a cap with a flange, and has a mounting portion 22 bent relative to the limit portion 21 toward the side close to the driving member 30. The inner circumferential wall of the mounting portion 22 is interference fit with the groove wall of the stepped groove 1124 (that is, the annular surface of the first ring portion 1121 close to the second ring portion 1122) to achieve connection and fixation.

[0150] By adopting the above solution, the limiting member 20 can be connected and fixed to the stepped groove 1124 by forming an interference fit between the limiting member 20 and the groove wall of the stepped groove 1124, thereby stabilizing the installation position and installation state of the limiting member 20 relative to the stepped groove 1124. Based on this, the connection and fixation of the limiting member 20 to the stepped groove 1124 can be achieved conveniently and quickly, and the connection convenience, connection efficiency, and connection reliability between the limiting member 20 and the fixing portion 112 can be improved.

[0151] In some embodiments, knurling may be provided on the side of the limit member 20 for interference fit with the wall of the stepped groove 1124 to enhance the connection strength, connection reliability and connection stability between the limit member 20 and the stepped groove 1124 .

[0152] In some embodiments, the groove wall of the stepped groove 1124 may be provided with knurling to enhance the connection strength, connection reliability and connection stability between the limiting member 20 and the stepped groove 1124.

[0153] See also Figure 12 In some embodiments of the present application, a chip groove 1125 is provided at the bottom of the stepped groove 1124 . That is, a chip groove 1125 is provided on the side of the second ring portion 1122 close to the limiting member 20 .

[0154] By adopting the above-mentioned scheme, a chip groove 1125 can be set at the bottom of the stepped groove 1124 to accommodate the debris generated during the interference fit between the limiting member 20 and the groove wall of the stepped groove 1124 through the chip groove 1125, thereby improving the assembly yield and assembly efficiency of the limiting member 20 and the stepped groove 1124.

[0155] See also Figure 1 、 Figure 2 In some embodiments of the present application, the position-limiting member 20 is fixed to the fixing portion 112 by welding. The welding may be laser welding, ultrasonic welding, etc. The position-limiting member 20 and the fixing portion 112 may be fixed together by continuous welding.

[0156] By adopting the above-mentioned solution, the separately formed limiting member 20 can be conveniently, quickly, reliably and firmly connected and fixed to the fixing portion 112 of the cover plate 11 by welding, thereby improving the connection convenience, connection reliability and connection stability between the limiting member 20 and the fixing portion 112.

[0157] See also Figure 2 、 Figure 9 、 Figure 10 、 Figure 11 In some embodiments of the present application, the position-limiting member 20 is provided with an interference fit between the groove wall of the stepped groove 1124, and the position-limiting member 20 is also secured to the fixing portion 112 by welding. Specifically, in addition to the interference fit, edge welding (e.g., edge laser welding) can be performed at the connection between the notch of the stepped groove 1124 and the position-limiting member 20. This arrangement combines interference fit and welding to comprehensively improve the convenience, reliability, and stability of the connection between the position-limiting member 20 and the fixing portion 112.

[0158] Of course, in other embodiments, the limiting member 20 and the fixing portion 112 may be connected and fixed by threaded connection, clamping, bonding, or other connection methods.

[0159] In some embodiments of the present application, the adjusting member 40 and the tuning portion 111 are connected by interference crimping, riveting, bonding, or welding. The bonding may be done by dispensing glue. The welding may be done by laser welding, ultrasonic welding, or the like.

[0160] It should be noted that the connection between the adjusting member 40 and the tuning portion 111 can be one or a combination of interference crimping, riveting, bonding, or welding. For example, the adjusting member 40 and the tuning portion 111 can be connected using only one of interference crimping, riveting, bonding, or welding. For another example, the adjusting member 40 and the tuning portion 111 can be both interference crimped and welded, or the adjusting member 40 and the tuning portion 111 can be both bonded and welded.

[0161] By adopting the above solution, the adjustment member 40 and the tuning part 111 can be connected and fixed by interference crimping, riveting, bonding or welding. Based on this, the connection convenience, connection efficiency and connection reliability between the adjustment member 40 and the tuning part 111 can be improved.

[0162] See also Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the adjusting member 40 includes a main body 41 and a connecting portion 42 connected to one end of the main body 41 near the tuning portion 111. Along the axial direction of the adjusting member 40, the projection of the connecting portion 42 covers the projection of the main body 41.

[0163] It should be noted that the adjusting member 40 includes a main body 41 and a connecting portion 42. The main body 41 is cylindrical and is threadedly connected to the threaded hole 31 of the driving member 30. The connecting portion 42 is integrally connected (or separately connected) to one end of the main body 41 close to the tuning portion 111. Along the circumference of the adjusting member 40, the connecting portion 42 protrudes from the main body 41. Along the axial direction of the adjusting member 40, the projection of the connecting portion 42 covers the projection of the main body 41, that is, the projection of the main body 41 falls within the projection of the connecting portion 42. The shape of the connecting portion 42 can be circular, polygonal, etc.

[0164] By adopting the above solution, the adjusting member 40 can be threadedly connected to the threaded hole 31 of the driving member 30 through the main body 41, and can also be connected and fixed to the tuning part 111 through the connecting portion 42 connected to the end of the main body 41 near the tuning part 111 and having a larger projected area. Based on this, the connection area between the adjusting member 40 and the tuning part 111 can be increased, thereby improving the connection strength, connection reliability, and connection stability of the adjusting member 40 and the tuning part 111.

[0165] In some embodiments, the connection portion 42 and the tuning portion 111 are adhesively bonded and laser welded. This arrangement facilitates automated assembly between the adjustment member 40 and the tuning portion 111, is suitable for mass production and assembly of resonators, and improves the convenience, efficiency, and stability of the connection between the adjustment member 40 and the tuning portion 111. Of course, in other embodiments, the connection portion 42 and the tuning portion 111 may be connected using other methods, such as crimping, snap-fitting, riveting, fastener connection, integral connection, etc.

[0166] Of course, in other embodiments, the adjusting member 40 may be provided with only the main body 41 without the connecting portion 42, and the end of the main body 41 close to the tuning portion 111 is connected to the tuning portion 111. For example, a connecting boss is provided on the side of the tuning portion 111 facing the limiting portion 21, and the connecting boss can be connected to the tuning portion 111 in an integral or separate manner. A connecting groove is provided on the connecting boss, and the end of the main body 41 close to the tuning portion 111 is connected to the connecting groove of the connecting boss. By providing the connecting boss and the connecting groove, the connection area between the adjusting member 40 and the tuning portion 111 can also be increased, thereby improving the connection strength, connection reliability, and connection stability between the adjusting member 40 and the tuning portion 111.

[0167] Of course, the adjusting member 40 and the tuning part 111 may not both be provided with a structure for increasing the connection area between the adjusting member 40 and the tuning part 111 , as long as the adjusting member 40 and the tuning part 111 are fixedly connected.

[0168] See also Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the driving member 30 includes a driving body 32 and an extension portion 33 protruding from the driving body 32 , and the threaded hole 31 passes through the extension portion 33 and the driving body 32 .

[0169] It should be noted that the driving member 30 includes a driving body 32 and an extension portion 33. The extension portion 33 is protruded from the driving body 32. Along the thickness direction of the driving member 30, the threaded hole 31 passes through the extension portion 33 and the driving body 32.

[0170] like Figure 2 As shown, in some embodiments, the extension portion 33 can be provided protrudingly on the side of the driving body 32 facing away from the tuning portion 111. This configuration can reduce the occupancy of the extension portion 33 in the cavity 113 formed by the driving member 30, the fixing portion 112, and the tuning portion 111, thereby reserving sufficient deformation space for the tuning portion 111 to deform in the direction close to the limit portion 21, thereby increasing the amount of deformation of the tuning portion 111 in the direction close to the limit portion 21 and expanding the adjustable range of the resonant frequency. Of course, in other embodiments, the extension portion 33 can be provided protrudingly on the side of the driving body 32 facing the tuning portion 111 to reduce the height of the resonator.

[0171] The extension portion 33 can be integrally formed with the driving body 32, for example, by extruding a linear substrate using a cold heading process, stamping a plate-like substrate using a stamping process, or by machining. The extension portion 33 can also be separately connected to the driving body 32, for example, the extension portion 33 can be a nut, which can be secured to the driving body 32 by, but not limited to, welding, gluing, or other methods.

[0172] By adopting the above-mentioned solution, by providing the driving member 30 with an extension portion 33 and making the threaded hole 31 pass through the extension portion 33 and the driving body 32, the depth of the threaded hole 31 can be increased, and the connection area between the adjusting member 40 and the threaded hole 31 can be increased, thereby improving the movement smoothness of the adjusting member 40 in the threaded hole 31.

[0173] See also Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the driving member 30 includes an operating portion 34, which is exposed in the exposure hole 211. The operating portion 34 may be, but is not limited to, a through hole, a boss, or other structures.

[0174] By adopting the above solution, the driving member 30 can be driven to rotate conveniently and quickly by a human hand or an external tool via the operating portion 34 exposed in the exposure hole 211 , thereby improving the operational convenience of the rotation of the driving member 30 .

[0175] Of course, in other embodiments, the driving member 30 may not have the operating part 34. The operator can apply force to the driving member 30 through a suction cup, the friction of the human hand, a tool with greater friction (for example, a rough rubber part is provided at the end of the tool), a sticky tool (for example, a glue is provided at the end of the tool), etc., to drive the driving member 30 to rotate.

[0176] See also Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the driving member 30 includes a driving body 32 and an extension portion 33 protruding from the driving body 32, the threaded hole 31 passes through the extension portion 33 and the driving body 32, the adjusting member 40 and the extension portion 33 are exposed in the exposure hole 211, and the operating portion 34 is arranged on the outer peripheral wall of the extension portion 33.

[0177] It should be noted that the driving member 30 includes a driving body 32, an extension portion 33 and an operating portion 34. The extension portion 33 is convexly arranged on the side of the driving body 32 facing away from the tuning portion 111 and is exposed in the exposure hole 211. In this case, the operating portion 34 can be arranged on the outer peripheral wall of the extension portion 33 to be exposed in the exposure hole 211. The outer peripheral wall of the extension portion 33 can be provided with ridges, grooves and other structures to serve as the operating portion 34. Figure 1 As shown, in some embodiments, the outer peripheral wall of the extension portion 33 may be provided with an outer hexagonal structure to serve as the operating portion 34 .

[0178] By adopting the above solution, when the extension portion 33 is protruding from the side of the driver body 32 facing away from the tuning portion 111 and exposed in the exposure hole 211, the operating portion 34 is provided on the outer peripheral wall of the extension portion 33. This allows the operating portion 34 to be exposed in the exposure hole 211, making it easier for a person or an external tool to conveniently and quickly rotate the driver 30 via the operating portion 34, thereby improving the operational convenience of rotating the driver 30. Furthermore, the operating portion 34 is directly formed on the outer peripheral wall of the extension portion 33, which also improves the design and manufacturing convenience of the operating portion 34, simplifies and optimizes the structure of the driver 30, and improves the manufacturing convenience and structural reliability of the driver 30. Furthermore, the adjustment member 40 and the extension portion 33 are exposed in the exposure hole 211, which also reserves space for the axial movement of the adjustment member 40.

[0179] See also Figure 1 、 Figure 13 In some embodiments of the present application, the driving body 32 is provided with an annular groove 321 on the outer periphery of the extension portion 33 .

[0180] By adopting the above-mentioned solution, when the operating portion 34 is provided on the outer peripheral wall of the extension portion 33, by providing the driving body 32 with an annular groove 321 on the outer periphery of the extension portion 33, the length of the operating portion 34 can be increased along the thickness direction of the driving member 30, thereby making it easier for a human hand or an external tool to hold or clamp the operating portion 34, thereby improving the operational convenience of the rotation of the driving member 30.

[0181] Of course, in other embodiments, when the operating portion 34 is disposed on the outer peripheral wall of the extension portion 33, the driving body 32 may not be provided with the annular groove 321 on the outer periphery of the extension portion 33 to maintain the thickness of the driving body 32, thereby maintaining and improving the structural strength of the driving body 32.

[0182] Please refer to Figure 1 、 Figure 2 In some embodiments of the present application, the driving member 30 includes a driving body 32 and an extension portion 33 protruding from the driving body 32 , the threaded hole 31 passes through the extension portion 33 and the driving body 32 , and the operating portion 34 is provided on the driving body 32 .

[0183] It should be noted that the driving member 30 includes a driving body 32, an extension portion 33, and an operating portion 34. The extension portion 33 may be protruding from the side of the driving body 32 facing away from the tuning portion 111, or it may be protruding from the side of the driving body 32 facing the tuning portion 111. The operating portion 34 may be provided on the side of the driving body 32 facing away from the tuning portion 111 and exposed in the exposure hole 211. The operating portion 34 is provided away from the extension portion 33 and the threaded hole 31. For example, the operating portion 34 may be one or more through holes, bosses, or other structures provided on the driving body 32.

[0184] By adopting the above solution, by setting the operating part 34 on the side of the driving body 32 facing away from the tuning part 111 and exposing it in the exposure hole 211, it is convenient for a person's hand or an external tool to drive the driving member 30 to rotate conveniently and quickly through the operating part 34, thereby improving the operational convenience of the rotation of the driving member 30.

[0185] Of course, in other embodiments, the driving member 30 includes a driving body 32 and an operating portion 34, but does not have an extension portion 33. In this case, the driving member 30 may be in the shape of a flat plate, and the operating portion 34 may be provided at a portion of the driving member 30 that does not correspond to the threaded hole 31, or the operating portion 34 may be provided at a portion of the driving member 30 that corresponds to the threaded hole 31 but does not have an internal thread, or the operating portion 34 may be provided at a portion of the driving member 30 that corresponds to the threaded hole 31 but has a through hole that can completely expose the threaded hole 31.

[0186] See also Figure 1 、 Figure 2In some embodiments of the present application, the adjusting member 40 is made of aluminum material, and the tuning part 111 is made of a soft aluminum alloy material.

[0187] By adopting the above solution, the material of the adjusting member 40 is aluminum, and the material of the tuning part 111 is a high-toughness soft aluminum alloy. Both the adjusting member 40 and the tuning part 111 are made of aluminum alloy material, which facilitates reliable and stable connection and fixation between the adjusting member 40 and the tuning part 111.

[0188] This embodiment is particularly suitable for use in conjunction with the embodiment of "welding the adjusting member 40 to the tuning portion 111." The use of aluminum-containing materials for both the adjusting member 40 and the tuning portion 111 facilitates laser welding between the adjusting member 40 and the tuning portion 111, improving the welding effect and strength, and enhancing the efficiency, reliability, and stability of the connection between the adjusting member 40 and the tuning portion 111.

[0189] See also Figure 1 、 Figure 2 In some embodiments of the present application, the driving member 30 is made of steel. This solution improves the structural strength and rigidity of the driving member 30, reduces wear and damage to the driving member 30 during rotation, improves the reliability of the driving member 30, and extends the service life of the driving member 30.

[0190] See also Figure 1 、 Figure 2 In some embodiments of the present application, the limiting member 20 is made of a hard aluminum alloy material, and the fixing portion 112 is made of a soft aluminum alloy material.

[0191] By adopting the above solution, the material of the limiter 20 is hard aluminum alloy, and the material of the fixing part 112 is high-toughness soft aluminum alloy. Both the limiter 20 and the fixing part 112 are made of aluminum alloy material, which facilitates reliable and stable connection and fixation between the limiter 20 and the fixing part 112.

[0192] This embodiment is suitable for use in conjunction with the embodiment of "welding the stopper 20 to the fixing portion 112." The use of aluminum alloy for both the stopper 20 and the fixing portion 112 facilitates laser welding between the stopper 20 and the fixing portion 112, improving the welding effect and strength, and enhancing the efficiency, reliability, and stability of the connection between the stopper 20 and the fixing portion 112.

[0193] This embodiment is suitable for use in combination with the embodiment of "interference press fit between the limiting member 20 and the groove wall of the stepped groove 1124". Since the limiting member 20 is made of hard aluminum alloy and the fixing portion 112 is made of soft aluminum alloy, the hardness of the limiting member 20 is higher than that of the fixing portion 112, which can facilitate the pressure-fitting and fixing of the limiting member 20 and the fixing portion 112. If the limiting member 20 and the fixing portion 112 are both made of hard aluminum alloy or both of soft aluminum alloy, the hardness of the limiting member 20 is equivalent to the hardness of the fixing portion 112, which may make it difficult for the limiting member 20 to be pressure-fitted and fixed to the fixing portion 112. In this case, other methods can be used to achieve the connection and fixation of the limiting member 20 and the fixing portion 112.

[0194] Of course, the materials of the limiting member 20, the driving member 30 and the adjusting member 40 can be other metal materials or non-metal materials. The non-metal materials can be wood materials, plastic materials, ceramic materials, etc., as long as the tuning operation can be performed normally.

[0195] See also Figure 1 、 Figure 2 、 Figure 3 In some embodiments of the present application, the cover plate 11 is an integrated single-layer cover plate. In this embodiment, the single-layer cover plate can be processed by slotting to form a relatively thin tuning portion 111.

[0196] By adopting the above-mentioned scheme, by making the cover plate 11 an integrated single-layer cover plate, the cover plate 11 can be easily formed as a whole, 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.

[0197] Of course, in other embodiments, the cover plate 11 may be a split single-layer cover plate, that is, the tuning portion 111 may be separately connected to the inner circumference of the fixing portion 112 .

[0198] See also Figure 14 In some embodiments of the present application, the cover 11 is a double-layer cover, and the cover 11 includes a first plate 114 and a second plate 115, the second plate 115 has a fixing portion 112, the first plate 114 is stacked on a side of the second plate 115 away from the driving member 30, and has a tuning portion 111.

[0199] It should be noted that the first plate 114 is stacked on the side of the second plate 115 away from the driver 30 (i.e., the side closer to the resonant cavity 13). The portion of the first plate 114 stacked with the second plate 115 is connected and fixed to the fixing portion 112 of the second plate 115. The connection and fixing method between the first plate 114 and the second plate 115 can be, but is not limited to, welding, bonding, riveting, fastener connection, etc. The portion of the first plate 114 other than the portion connected and fixed to the second plate 115 can form the tuning portion 111.

[0200] By adopting the above solution, the cover 11 can cover the other parts of the resonator housing 10 through the first plate 114 and the second plate 115, which are stacked and separately connected, and cooperate with the other parts of the resonator housing 10 to achieve a shielding function and prevent signal leakage. On this basis, the cover 11 can form the tuning part 111 through the first plate 114 and the fixing part 112 through the second plate 115. Based on this, since the first plate 114 can be formed independently, the tuning part 111 can be significantly thinned, and the parts of the first plate 114 other than the fixed part connected to the second plate 115 can form the tuning part 111. This can make the deformation resistance of the tuning part 111 smaller and the deformation range larger, thereby improving the adjustment convenience and adjustable range of the tuning part 111. Moreover, since the second plate 115 and the first plate 114 are separately formed and separately connected, the second plate 115 and the first plate 114 can be made of the same or different materials, which is beneficial to reducing the weight of the cover 11 and the resonator, and is beneficial to lightweighting the resonator and reducing the cost of the cover 11 and the resonator.

[0201] Please refer to Figure 6 In some embodiments of the present application, a sealing member is provided between the limiting portion 21 and the driving member 30. The sealing member can be a component having a sealing effect, such as a rubber sheet.

[0202] By adopting the above solution, by providing a sealing member between the limiting portion 21 and the driver 30, the gap between the limiting portion 21 and the driver 30 can be easily sealed by the sealing member. Based on this, the infiltration of impurities such as dust and water outside the resonator into the gap between the limiting portion 21 and the driver 30 can be reduced, the rotation reliability and effectiveness of the driver 30 can be maintained, and the reliability and service life of the resonator can be improved. Moreover, because the sealing member seals the gap between the limiting portion 21 and the driver 30, it can indirectly promote the contact between the limiting portion 21, the sealing member, the driver 30, and the fixing portion 112. Based on this, regardless of whether it is in a natural state, a rotation adjustment state of the driver 30, or a non-adjustment state of the driver 30, the driver 30 is not easy to rotate on its own and is not easy to loosen, thereby reducing the risk of the driver 30 loosening in the non-adjustment state, and reducing the risk of the deformation of the tuning portion 111 changing due to the loosening of the driver 30, thereby improving the accuracy of the tuning effect and the stability of the resonator indicators.

[0203] This embodiment is suitable for application in combination with the embodiment in which “a friction member 60 is provided between the limiting portion 21 and the driving member 30 ”, so that a sealing friction member is provided between the limiting portion 21 and the driving member 30 .

[0204] See also Figure 1 Some embodiments of the present application provide a filter including one or more resonators provided in the embodiments of the present application. In the case where there are multiple resonators, the multiple resonators can be arranged and designed, and a coupling relationship can be established between two adjacent resonators as needed.

[0205] By adopting the above solution, the filter can improve the simplicity, controllability, and stability of the tuning operation by adopting the resonator provided in the embodiment of the present application, thereby improving the tuning effect and filter indicators.

[0206] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A resonator, characterized in that include: The cover plate has a tuning portion capable of being deformed by force, and a fixing portion provided on the periphery of the tuning portion; a limiting member, separately connected to the fixing portion, and having a limiting portion parallel to and spaced from the cover plate, wherein the limiting portion is provided with an exposing hole; A driving member is rotatably and position-limitedly installed between the limiting portion and the fixing portion, and a threaded hole is provided through the driving member; The adjusting member is threadedly connected to the threaded hole and fixed to the tuning part; a portion of the driving member is exposed in the exposure hole.

2. The resonator according to claim 1, wherein A friction member is provided between the limiting portion and the driving member; and / or a friction member is provided between the driving member and the fixing portion.

3. The resonator according to claim 1, wherein The side of the limiting portion facing the driving member has a rough area; And / or, the side surface of the driving member facing the limiting portion has a rough area; and / or, the side of the driving member facing the fixing portion has a rough area; And / or, a side surface of the fixing portion facing the driving member has a rough area.

4. The resonator according to claim 1, wherein The distance between the limiting portion and the fixing portion is equal to or smaller than the thickness of the driving member.

5. The resonator according to claim 1, wherein The fixing portion includes a first ring portion, a second ring portion, and a third ring portion sequentially arranged outward from the tuning portion, wherein the first ring portion and the limiting portion jointly limit the driving member; On the side close to the limiting member, at least one of the first ring portion and the third ring portion protrudes from the second ring portion and is surrounded by the second ring portion to form a stepped groove; a part of the limiting member is installed in the stepped groove and is connected and fixed to the inner wall of the stepped groove.

6. The resonator according to claim 5, wherein The limiting member includes a mounting portion, which is connected to the outer periphery of the limiting member and bent toward a side close to the driving member. The mounting portion is mounted in the stepped groove and fixedly connected to the inner wall of the stepped groove.

7. The resonator according to claim 6, wherein On a side close to the limiting member, the third ring portion protrudes from the second ring portion and is enclosed with the second ring portion to form the stepped groove; the outer peripheral wall of the mounting portion is connected and fixed to the third ring portion.

8. The resonator according to claim 7, wherein On a side close to the limiting member, the second ring portion is recessed in or flush with the first ring portion.

9. The resonator according to claim 6, wherein On a side close to the limiting member, the first ring portion protrudes from the second ring portion and is surrounded with the second ring portion to form the stepped groove; the inner peripheral wall of the mounting portion is connected and fixed to the first ring portion.

10. The resonator according to claim 5, wherein On a side close to the limiting member, the third ring portion protrudes from the second ring portion and is enclosed with the second ring portion to form the stepped groove; the outer peripheral wall of the limiting member is connected and fixed to the third ring portion; The limiting member is a flat plate-shaped structure; or, the limiting member includes a mounting portion, the mounting portion is connected to the outer periphery of the limiting portion and is bent toward a side away from the driving member.

11. The resonator according to any one of claims 5 to 10, characterized in that The limiting member is interference-pressed with the groove wall of the stepped groove.

12. The resonator according to claim 11, wherein The limiting member and the fixing portion are further fixed by welding.

13. The resonator according to any one of claims 1 to 10, characterized in that The adjusting member and the tuning part are interference pressed, riveted, bonded or welded.

14. The resonator according to any one of claims 1 to 10, characterized in that The adjusting member includes a main body and a connecting portion connected to one end of the main body close to the tuning portion; along the axial direction of the adjusting member, the projection of the connecting portion covers the projection of the main body.

15. The resonator according to any one of claims 1 to 10, characterized in that The driving member includes a driving body and an extension portion protruding from the driving body, and the threaded hole passes through the extension portion and the driving body.

16. The resonator according to any one of claims 1 to 10, characterized in that The driving member includes an operating portion exposed in the exposure hole.

17. The resonator according to claim 16, wherein The driving member includes a driving body and an extension portion protruding from the driving body, the threaded hole passes through the extension portion and the driving body, the adjusting member and the extension portion are exposed in the exposure hole, and the operating portion is provided on the outer peripheral wall of the extension portion.

18. The resonator according to claim 17, wherein The driving body is provided with an annular groove on the outer periphery of the extending portion.

19. The resonator according to claim 16, wherein The driving member includes a driving body and an extension portion protruding from the driving body, the threaded hole passes through the extension portion and the driving body, and the operating portion is provided on the driving body.

20. The resonator according to any one of claims 1 to 10, characterized in that The adjusting member is made of aluminum, and the tuning part is made of a soft aluminum alloy. And / or, the driving member is made of steel; And / or, the limiting member is made of a hard aluminum alloy material, and the fixing portion is made of a soft aluminum alloy material.

21. The resonator according to any one of claims 1 to 10, characterized in that The cover plate is an integrated single-layer cover plate; or, the cover plate is a double-layer cover plate, the cover plate includes a first plate and a second plate, the second plate has the fixing portion, the first plate is stacked on a side of the second plate away from the driving member, and has the tuning portion.

22. The resonator according to any one of claims 1 to 10, characterized in that A sealing member is provided between the limiting portion and the driving member.

23. A filter, characterized in that: Comprising a resonator as claimed in any one of claims 1 to 22.

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