CN217282888U - Surface acoustic wave filter resonator with transverse mode suppression effect - Google Patents
Surface acoustic wave filter resonator with transverse mode suppression effect Download PDFInfo
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- CN217282888U CN217282888U CN202220437272.8U CN202220437272U CN217282888U CN 217282888 U CN217282888 U CN 217282888U CN 202220437272 U CN202220437272 U CN 202220437272U CN 217282888 U CN217282888 U CN 217282888U
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Abstract
The utility model discloses a surface acoustic wave filter syntonizer with horizontal mode restraines effect, including casing and apron, the inside of casing sets up to the resonant cavity, the inside of resonant cavity is provided with coupling assembling, the inside of resonant cavity is through the detachable metal resonance post of installing of coupling assembling, the opening has been seted up at the top of metal resonance post, the apron detachable install in the top of casing, be provided with the tuning assembly on the apron. The utility model discloses, through coupling assembling's setting, be convenient for quick installing the metal resonance post, moreover at the in-process of installation, need not borrow other mounting tool, and then improved the convenience of installation, had fast assembly's function, effectually avoided in the equipment process, the defective rate of the syntonizer that the smooth tooth problem arouses.
Description
Technical Field
The utility model relates to a syntonizer technical field especially relates to a surface acoustic wave filter syntonizer with horizontal mode suppression effect.
Background
Surface acoustic wave filter/SAW surface acoustic wave resonator. The SAW surface acoustic wave element mainly uses the piezoelectric property of piezoelectric material, uses the input and output transducers to convert the input signal of electric wave into mechanical energy, and converts the mechanical energy into electric signal after processing, so as to achieve the goal of filtering unnecessary signal and noise and raising the receiving quality.
In the related art, the resonator with the transverse mode suppression effect needs to be assembled in the production and processing process, while the existing resonator has certain defects in the assembling process, for example, in the assembling process, the resonator can be assembled by using a certain auxiliary tool, and the assembling difficulty is further improved because the volume of the internal element of the resonator is small.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming of the equipment of not being convenient for among the prior art, and the surface acoustic wave filter syntonizer who provides has horizontal mode suppression effect.
In order to realize the purpose, the utility model adopts the following technical scheme:
a surface acoustic wave filter resonator with a transverse mode suppression effect comprises a shell and a cover plate, wherein a resonant cavity is arranged inside the shell, a connecting assembly is arranged inside the resonant cavity, a metal resonance column is detachably mounted inside the resonant cavity through the connecting assembly, a through hole is formed in the top of the metal resonance column, the cover plate is detachably mounted on the top of the shell, and a tuning assembly is arranged on the cover plate;
through coupling assembling's setting, be convenient for quick carry out the installation rate to the metal resonance post.
The above technical solution further comprises:
coupling assembling is including being fixed in the cover frame of resonant cavity inner wall bottom, and be fixed in the inserted block of metal resonance column bottom, the slope mouth has all been seted up to the both sides of inserted block.
The metal elastic pieces are fixedly connected to two sides of the inner wall of the sleeve frame, the inclined blocks are fixedly connected to one opposite sides of the metal elastic pieces, and the elastic blocks are fixedly connected between the metal elastic pieces and the inner wall of the sleeve frame.
The bottom of the inner wall of the sleeve frame is fixedly connected with a rectangular positioning column, and the bottom of the inserting block is provided with a positioning hole.
The tuning assembly comprises a nut fixed at the top of the cover plate, and the inner thread of the nut is connected with a tuning screw rod.
The bottom end of the tuning screw rod penetrates through the cover plate and extends to the bottom of the cover plate, and the top end of the tuning screw rod is fixedly connected with the driving block.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in, through coupling assembling's setting, be convenient for quick installing the metal resonance post, at the in-process of installation moreover, need not borrow other mounting tool, and then improved the convenience of installation, had fast assembly's function, effectually avoided in the assembling process, the defective rate of the syntonizer that the smooth tooth problem arouses.
Drawings
Fig. 1 is a schematic structural diagram of a surface acoustic wave filter resonator with a transverse mode suppression effect according to the present invention;
FIG. 2 is a top view of the housing of FIG. 1;
FIG. 3 is a cross-sectional view of the coupling assembly of FIG. 2;
FIG. 4 is a schematic structural diagram of the metal resonant column in FIG. 1;
fig. 5 is a schematic structural view of the cover plate in fig. 1.
In the figure: 1. a housing; 2. a cover plate; 3. a resonant cavity; 4. a connecting assembly; 41. sleeving a frame; 42. inserting a block; 43. an angled port; 44. a metal spring sheet; 45. an inclined block; 46. an elastic block; 47. a rectangular positioning column; 5. a metal resonance column; 6. a tuning component; 61. a nut; 62. a tuning screw; 63. the block is driven.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-5, the utility model provides a surface acoustic wave filter syntonizer with horizontal mode suppression effect, including casing 1 and apron 2, the inside of casing 1 sets up to be resonant cavity 3, the inside of resonant cavity 3 is provided with coupling assembling 4, the inside of resonant cavity 3 is through the detachable metal resonance post 5 that installs of coupling assembling 4, the opening has been seted up at the top of metal resonance post 5, apron 2 is detachable to be installed in the top of casing 1, be provided with tuning assembly 6 on apron 2;
through coupling assembling 4's setting, be convenient for quick installing metal resonance post 5, at the in-process of installation, need not borrow other mounting tool moreover, and then improved the convenience of installation, had fast assembly's function, the effectual equipment in-process of having avoided, the defective rate of the resonator that the smooth tooth problem arouses.
The above technical solution further comprises:
the connecting assembly 4 comprises a sleeve frame 41 fixed at the bottom of the inner wall of the resonant cavity 3 and an inserting block 42 fixed at the bottom of the metal resonant column 5, and two sides of the inserting block 42 are both provided with an inclined opening 43;
through the setting of inserted block 42, be convenient for insert the inside of cover frame 41, the inside slope piece 45 of cooperation cover frame 41 inserts the inside of slope mouth 43, carries out the chucking, guarantees its stability.
Metal elastic sheets 44 are fixedly connected to both sides of the inner wall of the sleeve frame 41, inclined blocks 45 are fixedly connected to the opposite sides of the two metal elastic sheets 44, and elastic blocks 46 are fixedly connected between the two metal elastic sheets 44 and the inner wall of the sleeve frame 41;
through the elastic force of elastic block 46 self, can extrude metal shrapnel 44 for two metal shrapnels 44 move to the central point of cover frame 41, and then can drive elastic block 46 and insert and correspond the position in the inclined block 45, and then form the chucking, the fast assembly of the metal resonance post 5 of being convenient for.
The bottom of the inner wall of the sleeve frame 41 is fixedly connected with a rectangular positioning column 47, and the bottom of the inserting block 42 is provided with a positioning hole;
through the arrangement of the rectangular positioning column 47, the insertion block 42 is inserted into the insertion block 42, so that the insertion block 42 inserted into the sleeve frame 41 is preliminarily positioned.
In this embodiment, at first insert the inside of cover frame 41 with the inserted block 42 of metal resonance post 5 bottom, in the male in-process, insert the locating hole of inserted block 42 bottom with rectangle reference column 47, carry out preliminary location, insert behind cover frame 41 at inserted block 42, through elastic force of elastic block 46 self, can extrude metal shrapnel 44, make two metal shrapnels 44 move to the central point of cover frame 41, and then can drive elastic block 46 and insert in corresponding position slope piece 45, and then form the chucking, finally accomplish the fast assembly of metal resonance post 5, at last with apron 2 installation and the top of casing 1, can accomplish the equipment work of syntonizer.
Example two
As shown in fig. 5, based on the first embodiment, the tuning assembly 6 includes a nut 61 fixed on the top of the cover plate 2, and a tuning screw 62 is connected to the nut 61 through an internal thread;
through the arrangement of the nut 61 and the tuning screw 62, the tuning screw 62 can rotate conveniently, and the trend of up-and-down movement can be formed, so that tuning work can be performed.
The bottom end of the tuning screw 62 penetrates through the cover plate 2 and extends to the bottom of the cover plate 2, and the top end of the tuning screw 62 is fixedly connected with a driving block 63.
In this embodiment, the driving block 63 is provided to facilitate the worker to better control the rotation of the tuning screw 62, and the driving slot is formed in the top of the driving block 63, and the driving slot is rectangular, triangular, pentagonal, hexagonal, or the like.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a surface acoustic wave filter syntonizer with horizontal mode suppression effect, includes casing (1) and apron (2), its characterized in that, the inside of casing (1) sets up to resonant cavity (3), the inside of resonant cavity (3) is provided with coupling assembling (4), the inside of resonant cavity (3) is through detachable the installing of coupling assembling (4) metal resonance post (5), the opening has been seted up at the top of metal resonance post (5), apron (2) detachable install in the top of casing (1), be provided with tuning assembly (6) on apron (2).
2. The surface acoustic wave filter resonator having a transverse mode suppression effect according to claim 1, wherein the connection assembly (4) includes a frame (41) fixed to the bottom of the inner wall of the resonant cavity (3), and an insert (42) fixed to the bottom of the metal resonant post (5), and both sides of the insert (42) are opened with an inclined opening (43).
3. A surface acoustic wave filter resonator having a transverse mode suppression effect as claimed in claim 2, wherein both sides of the inner wall of the bezel (41) are fixedly connected with metal elastic pieces (44), one side of each of the two metal elastic pieces (44) opposite to each other is fixedly connected with an inclined block (45), and an elastic block (46) is fixedly connected between each of the two metal elastic pieces (44) and the inner wall of the bezel (41).
4. The surface acoustic wave filter resonator with the transverse mode suppression effect as claimed in claim 2, wherein a rectangular positioning column (47) is fixedly connected to the bottom of the inner wall of the frame (41), and a positioning hole is formed in the bottom of the insertion block (42).
5. A surface acoustic wave filter resonator having a transverse mode suppression effect, as set forth in claim 1, characterized in that said tuning assembly (6) comprises a nut (61) fixed to the top of said cover plate (2), a tuning screw (62) being screwed into the interior of said nut (61).
6. A surface acoustic wave filter resonator having a transverse mode suppression effect as set forth in claim 5, wherein the bottom end of the tuning screw (62) penetrates the cover plate (2) and extends to the bottom of the cover plate (2), and the top end of the tuning screw (62) is fixedly connected with a driving block (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437272.8U CN217282888U (en) | 2022-03-01 | 2022-03-01 | Surface acoustic wave filter resonator with transverse mode suppression effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437272.8U CN217282888U (en) | 2022-03-01 | 2022-03-01 | Surface acoustic wave filter resonator with transverse mode suppression effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217282888U true CN217282888U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220437272.8U Active CN217282888U (en) | 2022-03-01 | 2022-03-01 | Surface acoustic wave filter resonator with transverse mode suppression effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217282888U (en) |
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2022
- 2022-03-01 CN CN202220437272.8U patent/CN217282888U/en active Active
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