CN216597924U - Clamp for mounting resonant rod of cavity filter - Google Patents
Clamp for mounting resonant rod of cavity filter Download PDFInfo
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- CN216597924U CN216597924U CN202122581385.3U CN202122581385U CN216597924U CN 216597924 U CN216597924 U CN 216597924U CN 202122581385 U CN202122581385 U CN 202122581385U CN 216597924 U CN216597924 U CN 216597924U
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Abstract
The utility model belongs to the technical field of wireless communication, and particularly relates to a clamp for mounting a resonant rod of a cavity filter, which comprises a positioning plate, a bottom plate and a pressing plate, wherein the positioning plate is arranged on the bottom plate; the positioning plate is arranged below the bottom plate and fixed with the bottom plate; the top surface of the positioning plate is provided with a plurality of spring limiting columns for mounting the resonance rod; the bottom plate is provided with a plurality of limiting holes which are in one-to-one correspondence with the spring limiting columns, and the spring limiting columns penetrate through the corresponding limiting holes; the pressing plate is arranged above the bottom plate and is detachably connected with the bottom plate; a gap for reversely buckling the mounting cavity is arranged between the pressing plate and the bottom plate. When the fixture is used for installing the resonant rods into the cavity, the positioning plate and the bottom plate can be fixed, then the resonant rods are installed outside the line on the spring limiting columns, and all the resonant rods are installed in the cavity at one time by reflow soldering after solder is applied, so that the installation beat of an assembly line can be effectively shortened, the assembly efficiency is improved, and the mass production is favorably realized; meanwhile, the installation method is simple and easy to operate.
Description
Technical Field
The utility model belongs to the technical field of wireless communication, and particularly relates to a clamp for mounting a resonant rod of a cavity filter.
Background
With continuous progress and development of mobile communication technology, the cavity filter is used as a key module in the microwave radio frequency field, especially development and application of 5G communication technology, and miniaturization and lightweight design of the filter become key requirements of application. The resonance bar adopts screw mounting mode and cavity installation together usually, because 5G frequency uprises, cavity and resonance bar volume all dwindles relatively, and the installation effectiveness is low because of the not enough installation space that causes, seriously influences cavity filter's output.
Therefore, a resonant rod installation clamp which is simple and convenient to install, high in assembly efficiency and reliability and beneficial to mass production is needed to overcome the defects of the traditional resonant rod installation method.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the clamp for mounting the cavity filter resonant rod, which is simple in mounting method, easy to operate, high in assembly efficiency and high in reliability.
In order to achieve the purpose, the technical scheme of the utility model is that the clamp for mounting the resonant rod of the cavity filter comprises a positioning plate, a bottom plate and a pressing plate; the positioning plate is arranged below the bottom plate and is fixed with the bottom plate; the top surface of the positioning plate is provided with a plurality of spring limiting columns for mounting the resonance rod; the bottom plate is provided with a plurality of limiting holes which are in one-to-one correspondence with the spring limiting columns, and the spring limiting columns penetrate through the corresponding limiting holes; the pressing plate is arranged above the bottom plate and is detachably connected with the bottom plate; and a gap for reversely buckling the mounting cavity is formed between the pressing plate and the bottom plate.
Furthermore, the bottom plate and the pressing plate are both of groove structures with high two sides and low middle, and the pressing plate and the bottom plate are arranged oppositely; the limiting hole is formed in the concave portion of the bottom plate, the cavity is mounted between the concave portion in the middle of the bottom plate and the concave portion in the middle of the pressing plate, and the convex portions on two sides of the bottom plate are detachably connected with the convex portions on two sides of the pressing plate respectively.
Furthermore, all be equipped with first connecting hole on the convex part of bottom plate both sides, all be equipped with the second connecting hole on the convex part of clamp plate both sides, first connecting hole with the second connecting hole one-to-one just can dismantle the connection through the screw.
Furthermore, the concave part in the middle of the bottom plate is also provided with at least two positioning columns, and the positioning columns correspond to the positioning holes in the cavity one to one and are matched with the positioning holes in the cavity.
Furthermore, at least two third connecting holes are further formed in the concave portion in the middle of the bottom plate, at least two fourth connecting holes are formed in the positioning plate, and the third connecting holes correspond to the fourth connecting holes in a one-to-one mode and are connected through screws.
Furthermore, a plurality of limiting grooves are formed in the top surface of the positioning plate, and the spring limiting columns correspond to the limiting grooves one to one; the bottom of the spring limiting column is connected with the bottom surface of the corresponding limiting groove, and the top of the spring limiting column upwards penetrates through the corresponding limiting hole and extends to the position above the top surface of the bottom plate.
Furthermore, the spacing post of spring includes elastic component and the cylinder that is used for installing the resonance pole, the bottom of elastic component with the bottom surface of spacing groove is connected, the top of elastic component with the bottom of cylinder is connected, the top of cylinder upwards passes spacing hole extends above the top surface of bottom plate.
Furthermore, the limiting groove and the limiting hole are both step-shaped, and the large-diameter section of the limiting groove is opposite to and communicated with the large-diameter section of the limiting hole to form a limiting space; the bottom of the column body is provided with a limiting boss, and the limiting boss is connected with the top of the elastic part; the limiting boss is located in the limiting space and matched with the limiting space.
Furthermore, the bottom surface of the limiting boss is provided with a mounting groove with a downward opening, and the top of the elastic piece is connected with the bottom of the mounting groove.
Compared with the prior art, the utility model has the following beneficial effects:
(1) when the resonant rod is installed in the cavity by adopting the installation clamp, the positioning plate and the bottom plate can be fixed, so that the top of the spring limiting column on the positioning plate passes through the limiting hole on the bottom plate and extends to the upper surface of the bottom plate, all the resonant rods are installed on the spring limiting column outside the line, solder is applied to the bottom surface of the resonant rod, the solder is contacted with the bottom surface of the cavity by the pressing plate, and after the bottom plate and the pressing plate are fixed, all the resonant rods are installed in the cavity at one time by adopting reflow soldering, the installation beat of an assembly line can be effectively shortened, the assembly precision and the assembly efficiency are improved, and the batch production is favorably realized;
(2) the mounting method for mounting the resonance rod into the cavity by adopting the clamp is simple and easy to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a base plate mounted to a positioning plate in an embodiment of the present invention;
FIG. 2 is a schematic view of a resonant rod mounted to a spring retaining post in an embodiment of the present invention;
FIG. 3 is a schematic view of the cavity being inverted on the base plate according to an embodiment of the utility model;
FIG. 4 is a schematic view of a chamber mounted to a base plate in an embodiment of the utility model;
FIG. 5 is a schematic view of a platen mounted on a base plate in an embodiment of the present invention;
FIG. 6 is a schematic view of a platen mounted on a base plate in an embodiment of the present invention;
FIG. 7 is a schematic view of a chamber sandwiched between a platen and a base plate in an embodiment of the utility model;
FIG. 8 is a top view of the mounting of the base plate to the alignment plate in an embodiment of the present invention;
FIG. 9 is a view A-A of FIG. 8;
FIG. 10 is a schematic view of a positioning plate according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a spring-loaded stud according to an embodiment of the present disclosure;
in the figure: 1. a cavity; 11. positioning holes; 2. a resonant rod; 3. welding flux; 4. positioning a plate; 41. a spring limiting post; 411. an elastic member; 412. a cylinder; 413. a limiting boss; 42. a limiting groove; 43. a fourth connection hole; 5. a base plate; 51. a limiting hole; 52. a first connection hole; 53. a positioning column; 54. a third connection hole; 6. pressing a plate; 61. a second connection hole; 7. and (4) screws.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 7, the present embodiment provides a fixture for mounting a cavity filter resonant rod, which includes a positioning plate 4, a bottom plate 5 and a pressing plate 6; the positioning plate 4 is arranged below the bottom plate 5 and is fixed with the bottom plate 5; the top surface of the positioning plate 4 is provided with a plurality of spring limiting columns 41 for mounting the resonance rod 2; a plurality of limiting holes 51 corresponding to the spring limiting columns 41 one to one are formed in the bottom plate 5, and the spring limiting columns 41 penetrate through the corresponding limiting holes 51; the pressing plate 6 is arranged above the bottom plate 5 and is detachably connected with the bottom plate 5; and a gap for reversely buckling the mounting cavity 1 is formed between the pressing plate 6 and the bottom plate 5. When the fixture of the embodiment is adopted to install the resonant rods 2 into the cavity 1, the positioning plate 4 and the bottom plate 5 can be fixed firstly, so that the tops of the spring limiting columns 41 on the positioning plate 4 penetrate through the corresponding limiting holes 51 on the bottom plate 5 and extend to the upper surface of the bottom plate 5, then all the resonant rods 2 are installed on the spring limiting columns 41 outside the line, the welding flux 3 is applied to the bottom surfaces of the resonant rods 2, then the welding flux 3 is contacted with the bottom surfaces of the cavity 1 through the pressing plate 6, and after the bottom plate 5 and the pressing plate 6 are fixed, all the resonant rods 2 are installed into the cavity 1 by adopting reflow soldering at one time, so that the installation beat of an assembly line can be effectively shortened, the assembly precision and the assembly efficiency are improved, and the mass production is facilitated; and the installation method is simple and easy to operate.
Furthermore, the bottom plate 5 and the pressing plate 6 are both of groove structures with high two sides and low middle, and the pressing plate 6 is arranged opposite to the bottom plate 5; the limiting hole 51 is arranged on the concave part of the bottom plate 5, the cavity 1 is arranged between the concave part in the middle of the bottom plate 5 and the concave part in the middle of the pressing plate 6, and the convex parts on two sides of the bottom plate 5 are respectively detachably connected with the convex parts on two sides of the pressing plate 6. As shown in fig. 5-7, the bottom plate 5 and the pressing plate 6 of the present embodiment are both of a groove structure and are oppositely disposed so as to clamp the cavity 1 between the bottom plate 5 and the pressing plate 6; the positions of the spring limiting columns 41 on the positioning plate 4 and the positions of the spring limiting holes 51 on the bottom plate 5 are in one-to-one correspondence with the positions of the resonance rods 2 in the cavity 1, the number of the spring limiting columns 41 and the number of the spring limiting holes 51 are in one-to-one correspondence with the number of the resonance rods 2, the spring limiting columns 41 on the positioning plate 4 upwards penetrate through the spring limiting holes 51 respectively, and the spring limiting rods 2 to be installed are sleeved on the parts of the spring limiting columns 41 penetrating to the bottom plate 5 respectively.
Furthermore, all be equipped with first connecting hole 52 on the convex part of bottom plate 5 both sides, all be equipped with second connecting hole 61 on the convex part of clamp plate 6 both sides, first connecting hole 52 with second connecting hole 61 one-to-one and through screw 7 can dismantle the connection. This embodiment is with clamp plate 6 place bottom plate 5 top to align second connecting hole 61 on the clamp plate 6 with first connecting hole 52 on the bottom plate 5, later pass corresponding second connecting hole 61 and the first connecting hole 52 threaded connection that corresponds through screw 7, clamp plate 6, bottom plate 5 and the cooperation of the spacing post 41 of spring make the solder 3 on the resonance bar 2 bottom surface fully contact with cavity 1 bottom surface, convenient operation has improved the efficiency of construction. As an embodiment, as shown in fig. 5-7, two first connection holes 52 are respectively formed on the convex portions on both sides of the bottom plate 5, two second connection holes 61 are respectively formed on the convex portions on both sides of the pressing plate 6, and in use, the first connection holes 52 on both sides of the pressing plate 6 are aligned with the second connection holes 61 on both sides of the pressing plate 6 and then connected by screws 7.
Furthermore, at least two positioning posts 53 are further disposed on the concave portion in the middle of the bottom plate 5, and the positioning posts 53 correspond to the positioning holes 11 on the cavity 1 one to one and are matched with each other. This embodiment is with cavity 1 back-off on the bottom plate 5 of adorning resonance rod 2 to on the locating hole 11 suit on cavity 1 corresponds reference column 53 on bottom plate 5, make resonance rod 2 whole mounting on the corresponding position in cavity 1. As an embodiment, as shown in fig. 3 and 4, two positioning holes 11 are respectively formed at the front end and the rear end of the chamber 1, positioning posts 53 are respectively formed at positions on the bottom plate 5 corresponding to the positioning holes 11, and the two positioning holes 11 at the front end and the two positioning holes 11 at the rear end of the chamber 1 are respectively sleeved on the corresponding positioning posts 53 on the bottom plate 5, so that the chamber 1 is accurately positioned on the bottom plate 5.
Furthermore, at least two third connecting holes 54 are further formed in the concave portion in the middle of the bottom plate 5, at least two fourth connecting holes 43 are formed in the positioning plate 4, and the third connecting holes 54 correspond to the fourth connecting holes 43 one to one and are connected through screws. The present embodiment fixes the bottom plate 5 and the positioning plate 4 by screwing the third coupling hole 54 of the bottom plate 5 and the corresponding fourth coupling hole 43 of the positioning plate 4. As an embodiment, as shown in fig. 1, two third connection holes 54 are respectively formed at the front end and the rear end of the bottom plate 5, as shown in fig. 10, two fourth connection holes 43 are respectively formed at the front end and the rear end of the positioning plate 4, the four third connection holes 54 of the bottom plate 5 correspond to the four fourth connection holes 43 of the positioning plate 4, and the bottom plate 5 and the positioning plate 4 are fixed by screwing screws through the corresponding fourth connection holes 43 and then screwing with the corresponding third connection holes 54.
Furthermore, a plurality of limiting grooves 42 are formed in the top surface of the positioning plate 4, and the spring limiting columns 41 correspond to the limiting grooves 42 one by one; the bottom of the spring limiting column 41 is connected with the bottom surface of the corresponding limiting groove 42, and the top of the spring limiting column upwards passes through the corresponding limiting hole 51 and extends to the upper surface of the bottom plate 5. As shown in fig. 10, the positioning plate 4 is provided with a plurality of limiting grooves 42 for mounting the spring limiting posts 41, and the limiting grooves 42 on the positioning plate 4 are communicated with corresponding limiting holes 51 on the bottom plate 5 to provide a telescopic space for the spring limiting posts 41, so as to be matched with the pressing plate 6 to make the solder 3 fully contact with the bottom surface of the cavity 1.
Furthermore, the spring-retaining post 41 includes an elastic member 411 and a column 412 for mounting the resonant rod 2, the bottom of the elastic member 411 is connected to the bottom of the retaining slot 42, the top of the elastic member 411 is connected to the bottom of the column 412, and the top of the column 412 extends upward through the retaining hole 51 and extends above the top surface of the bottom plate 5. As shown in fig. 8-10, the elastic member 411 of the spring-retaining post 41 can extend and contract in the corresponding retaining groove 42 and retaining hole 51, the top of the column 412 extends to the upper surface of the bottom plate 5, and the top is provided with a mounting portion for mounting the resonant rod 2; the elastic member 411 is in an extended state at the time of mounting the resonance bar 2 and applying the solder 3; when the pressing plate 6 is fixed to the bottom plate 5 by the screws 7, the elastic member 411 is in a compressed state and the solder 3 is brought into full contact with the bottom surface of the cavity 1 by an upward force. The elastic member 411 of this embodiment is a member with certain elasticity, and may be a spring.
Furthermore, the limiting groove 42 and the limiting hole 51 are both step-shaped, and the large-diameter section of the limiting groove 42 is opposite to and communicated with the large-diameter section of the limiting hole 51 to form a limiting space; the bottom of the column 412 is provided with a limiting boss 413, and the limiting boss 413 is connected with the top of the elastic element 411; the limiting boss 413 is located in the limiting space and matched with the limiting space. Furthermore, an installation groove with a downward opening is formed in the bottom surface of the limiting boss 413, and the top of the elastic element 411 is connected with the bottom of the installation groove. As shown in fig. 9 and 11, the small diameter section of the lower portion of the position-limiting groove 42 is matched with the elastic member 411, and the small diameter section of the upper portion of the position-limiting hole 51 is matched with the upper portion of the column 412; the large diameter section at the upper part of the limiting groove 42 is opposite to the large diameter section at the lower part of the limiting hole 51 and communicated to form a limiting space, and the limiting boss 413 at the bottom of the column 412 is positioned in the limiting space.
The embodiment also provides a method for installing the resonant rod in the filter cavity by adopting the clamp, which comprises the following steps:
s1, fixing the bottom plate 5 and the positioning plate 4, and enabling the top of the spring limiting column 41 on the positioning plate 4 to penetrate through the corresponding limiting hole 51 on the bottom plate 5 and extend to the position above the bottom plate 5;
s2, sleeving the resonance rod 2 on the top of the corresponding spring limiting column 41, and enabling the mounting surface of the resonance rod 2 for welding with the cavity 1 to face upwards;
s3, applying solder 3 on the installation surface of the resonance rod 2; in the embodiment, the solder is tin-silver-copper alloy, and cream solder or preformed sheet solder can be used according to the requirements of products, processes and equipment; various processes such as printing, tin dispensing, mounting and the like can be adopted when the solder is applied;
s4, inversely buckling the cavity 1 on the bottom plate 5 provided with the resonance rod 2, and sleeving the positioning hole 11 on the cavity 1 on the corresponding positioning column 53 on the bottom plate 5 to enable the resonance rod 2 to be integrally arranged on the corresponding position in the cavity 1;
s5, fixing two sides of the pressure plate 6 and two sides of the bottom plate 5 below the pressure plate by screws 7, so that the cavity 1 is clamped between the pressure plate 6 and the bottom plate 5, and the bottom surface of the cavity 1 is fully contacted with the solder 3;
and S6, welding the resonance rod 2 and the cavity 1 together by adopting reflow soldering, and removing the mounting fixture after welding to carry out post-process mounting.
In the embodiment, all the resonant rods 2 to be installed are installed outside the assembly line on the spring limiting columns 41 on the bottom plate 5, then the cavity 1 is reversely buckled on the bottom plate 5, and all the resonant rods 2 are installed in the cavity 1 at one time through reflow soldering, so that the installation beat of the assembly line can be shortened, and the assembly efficiency is improved; and the resonance rod 2 and the cavity 1 are installed in a welding mode without being fixed by screws, so that the weight of the product can be reduced, and the competitiveness of the product is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a anchor clamps that is used for cavity filter resonance bar to install which characterized in that: comprises a positioning plate, a bottom plate and a pressing plate; the positioning plate is arranged below the bottom plate and fixed with the bottom plate; the top surface of the positioning plate is provided with a plurality of spring limiting columns for mounting the resonance rod; the bottom plate is provided with a plurality of limiting holes which are in one-to-one correspondence with the spring limiting columns, and the spring limiting columns penetrate through the corresponding limiting holes; the pressing plate is arranged above the bottom plate and is detachably connected with the bottom plate; and a gap for reversely buckling the mounting cavity is formed between the pressing plate and the bottom plate.
2. A jig for cavity filter resonator rod mounting according to claim 1, wherein: the bottom plate and the pressing plate are both of groove structures with high two sides and low middle, and the pressing plate and the bottom plate are oppositely arranged; the limiting hole is formed in the concave portion of the bottom plate, the cavity is mounted between the concave portion in the middle of the bottom plate and the concave portion in the middle of the pressing plate, and the convex portions on two sides of the bottom plate are detachably connected with the convex portions on two sides of the pressing plate respectively.
3. A jig for cavity filter resonator rod mounting according to claim 2, wherein: all be equipped with first connecting hole on the convex part of bottom plate both sides, all be equipped with the second connecting hole on the convex part of clamp plate both sides, first connecting hole with the second connecting hole one-to-one just can dismantle the connection through the screw.
4. A jig for cavity filter resonator rod mounting according to claim 2, wherein: the concave part in the middle of the bottom plate is also provided with at least two positioning columns, and the positioning columns correspond to the positioning holes in the cavity one by one and are matched with the positioning holes in the cavity.
5. A jig for cavity filter resonator rod mounting according to claim 2, wherein: the positioning plate is provided with at least two first connecting holes, and the first connecting holes are in one-to-one correspondence with the first connecting holes and are connected through screws.
6. A jig for cavity filter resonator rod mounting according to claim 1, wherein: the top surface of the positioning plate is provided with a plurality of limiting grooves, and the spring limiting columns correspond to the limiting grooves one to one; the bottom of the spring limiting column is connected with the bottom surface of the corresponding limiting groove, and the top of the spring limiting column upwards penetrates through the corresponding limiting hole and extends to the position above the top surface of the bottom plate.
7. The fixture for cavity filter resonator rod mounting of claim 6, wherein: the spacing post of spring includes elastic component and is used for installing the cylinder of resonance pole, the bottom of elastic component with the bottom surface of spacing groove is connected, the top of elastic component with the bottom of cylinder is connected, the top of cylinder upwards passes spacing hole extends more than the top surface of bottom plate.
8. A jig for cavity filter resonator rod mounting according to claim 7, wherein: the limiting groove and the limiting hole are both step-shaped, and the large-diameter section of the limiting groove is opposite to and communicated with the large-diameter section of the limiting hole to form a limiting space; the bottom of the column body is provided with a limiting boss, and the limiting boss is connected with the top of the elastic part; the limiting boss is located in the limiting space and matched with the limiting space.
9. A jig for cavity filter resonator rod mounting according to claim 8, wherein: the bottom surface of the limiting boss is provided with a mounting groove with a downward opening, and the top of the elastic piece is connected with the bottom of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122581385.3U CN216597924U (en) | 2021-10-26 | 2021-10-26 | Clamp for mounting resonant rod of cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122581385.3U CN216597924U (en) | 2021-10-26 | 2021-10-26 | Clamp for mounting resonant rod of cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216597924U true CN216597924U (en) | 2022-05-24 |
Family
ID=81641988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122581385.3U Active CN216597924U (en) | 2021-10-26 | 2021-10-26 | Clamp for mounting resonant rod of cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216597924U (en) |
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2021
- 2021-10-26 CN CN202122581385.3U patent/CN216597924U/en active Active
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