CN220510225U - Filter - Google Patents
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- CN220510225U CN220510225U CN202322125013.9U CN202322125013U CN220510225U CN 220510225 U CN220510225 U CN 220510225U CN 202322125013 U CN202322125013 U CN 202322125013U CN 220510225 U CN220510225 U CN 220510225U
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- Prior art keywords
- cover plate
- filter
- pad
- adjusting
- adjustment
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- 230000003750 conditioning effect Effects 0.000 claims 5
- 238000004891 communication Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The application relates to the technical field of filters and provides a filter, wherein the filter comprises: a housing formed with a chamber capable of accommodating the resonant rod; the cover plate is arranged on the shell and covers the cavity, and a convex column part and a groove surrounding the convex column part are arranged on the surface of one side of the cover plate, which is opposite to the cavity; the adjusting pad at least comprises a first part and a second part, when the adjusting pad is assembled to the groove, the first part is positioned outside the groove, and the second part is positioned in the groove; the adjusting executing piece is in threaded connection with the convex column part and is positioned on one side of the adjusting backing away from the cover plate, the adjusting executing piece can rotate along the convex column part and press the adjusting backing, the bottom of the groove deforms to adjust the distance between the cover plate and the resonant rod, and the filter is easy and convenient to operate when the adjusting cover plate deforms, so that the deformation of the cover plate can be effectively controlled.
Description
Technical Field
The present application relates to the field of filter technology, and more particularly, to a filter.
Background
Filters are widely used as a frequency selective device in the field of communications, particularly radio frequency communications. In the base station, the filter is used for selecting the communication signal and filtering clutter or interference signals outside the frequency of the communication signal.
The shell structure of the filter mainly comprises a shell and a cover plate arranged on the shell, and the distance between the bottom surface of the cover plate and a resonant rod (in a cavity formed by the shell) in the filter can directly influence the frequency of a filter product, so that when the distance between the bottom surface of the cover plate and the resonant rod does not meet the requirement, the distance between the bottom surface of the cover plate and the resonant rod needs to be adjusted by deforming the cover plate. In the prior art, a cover plate is deformed in a manual knocking or drawing mode, and the defects that the operation is complex, the deformation of the cover plate is difficult to effectively control, the deformation of the cover plate is easy to change after adjustment, the performance index jump of a filter is caused, and strict package protection is required for matching the filter.
Disclosure of Invention
The utility model mainly aims to provide a filter and aims to solve the technical problems that a deformation adjusting mode of a filter cover plate in the prior art is complex in operation and deformation is difficult to effectively control.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a filter, comprising:
a housing formed with a chamber capable of accommodating the resonant rod;
the cover plate is arranged on the shell and covers the cavity, and a convex column part and a groove surrounding the convex column part are arranged on the surface of one side of the cover plate, which faces away from the cavity;
an adjustment pad comprising at least a first portion and a second portion, the first portion being located outside the recess and the second portion being located inside the recess when the adjustment pad is assembled to the recess;
the adjusting executing piece is in threaded connection with the convex column part and is positioned on one side, deviating from the cover plate, of the adjusting pad, the adjusting executing piece can rotate along the convex column part and press the adjusting pad, so that the bottom of the groove is deformed to adjust the distance between the cover plate and the resonance rod.
In some embodiments, the conditioner mat comprises at least a first conditioner mat and a second conditioner mat, each comprising the first portion and the second portion, the second portion of the first conditioner mat having a height that is less than a height of the second portion of the second conditioner mat.
In some embodiments, when the first adjusting pad is assembled to the groove, rotating the adjusting actuator can enable the adjusting actuator to stop on the first adjusting pad to drive the bottom of the groove to deform upwards.
In some embodiments, when the second adjustment pad is fitted to the recess, rotating the adjustment actuator can cause the adjustment actuator to press against the second adjustment pad to deform the bottom of the recess downward.
In some embodiments, the height of the second portion of the first conditioner mat is less than the depth of the groove, and the height of the second portion of the second conditioner mat is greater than the depth of the groove.
In some embodiments, the first portion of the adjustment pad is an annular support table disposed around the post portion, and the second portion is a support post disposed on a side of the annular support table facing the recess.
In some embodiments, the number of the support columns is a plurality, and the plurality of support columns are arranged on the annular support table at intervals along the circumferential direction of the annular support table.
In some embodiments, the cover plate and the post are an integral piece; or (b)
The post portion is detachably mounted on the cover plate.
In some embodiments, the adjustment actuator is a nut.
In some embodiments, a plurality of grooves are provided on the cover plate, and corresponding convex column parts, adjusting pads and adjusting executing pieces are provided at the grooves.
The beneficial effect of the filter that this application provided lies in:
in the filter provided by the embodiment of the utility model, the groove, the convex column part with the external threads, the adjusting pad and the adjusting executing piece are arranged at the cover plate, and the adjusting executing piece can be operated to be screwed to press the adjusting pad, so that the purpose of deforming the bottom of the groove to adjust the distance between the cover plate and the resonant rod of the filter is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a filter provided in one embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a perspective view of a tuning pad in a filter according to one embodiment of the present application;
fig. 4 is a perspective view of a filter provided in one embodiment of the present application.
Reference numerals related to the above figures are as follows:
1-adjusting an actuator;
2-a filter resonant rod;
100-a housing;
101-a chamber;
200-cover plate;
201-a post portion;
202-grooves;
300-adjusting pad;
301-an annular support table;
302-support columns.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
For the purpose of illustrating the technical solutions described herein, the following detailed description is provided with reference to specific drawings and examples.
Referring to fig. 1 and 2, an embodiment of the present utility model provides a filter including:
a housing 100 formed with a chamber 101 capable of accommodating the filter resonance rod 2;
a cover plate 200, wherein the cover plate 200 is mounted on the housing 100 and covers the chamber 101, and a side surface of the cover plate 200 facing away from the chamber 101 is provided with a convex column part 201 and a groove 202 surrounding the convex column part 201;
the optional adjusting pad 300 disposed on the cover 200, where the adjusting pad 300 includes at least a first portion and a second portion, and when the adjusting pad 300 is assembled to the groove 202, the first portion is located outside the groove 202, and the second portion is located inside the groove 202, and since the material of the cover 200 is aluminum, which is commonly used at present, the material of the adjusting pad 300 is easy to deform after being stressed, and the rigidity of the material of the adjusting pad 300 should be stronger than the rigidity of the cover 200, such as stainless steel;
the adjusting actuator 1 is screwed to the boss portion 201, specifically, the adjusting actuator 1 may have a threaded hole, the boss portion 201 has an external thread, the adjusting actuator 1 is screwed to the boss portion 201 through the threaded hole and the external thread, and is located at a side of the adjusting pad 300 away from the cover plate 200, and the adjusting actuator 1 may rotate along the boss portion 201 and press the adjusting pad 300, so that the bottom of the groove 202 is deformed to adjust the distance between the cover plate 200 and the filter resonance rod 2.
It will be appreciated that the adjustment actuator 1 is located on a side of the adjustment pad 300 facing away from the cover plate 200, and the adjustment actuator 1 is screwed onto the boss portion 201 of the cover plate 200, so that the adjustment pad 300 is mounted and fixed to the cover plate 200 by the actuation of the adjustment actuator 1, and more specifically, the adjustment pad 300 is fitted at the recess 202 of the cover plate 200 by the actuation of the adjustment actuator 1.
In the filter provided by the embodiment of the utility model, the groove 202, the convex column part 201 with external threads, the adjusting pad 300 and the adjusting executing piece 1 are arranged at the cover plate 200, and the adjusting executing piece 1 can be operated to screw the adjusting executing piece 1 to press the adjusting pad 300, so that the purpose of deforming the bottom of the groove 202 to adjust the distance between the cover plate 200 and the filter resonance rod 2 is achieved, and the distance between the cover plate 200 and the filter resonance rod 2 can directly influence the frequency of a filter product.
According to one embodiment of the utility model, the conditioner mat 300 includes at least a first conditioner mat and a second conditioner mat, each of the first and second conditioner mats including a first portion and a second portion, the second portion of the first conditioner mat having a height that is less than the height of the second portion of the second conditioner mat.
When the first adjusting pad is assembled to the groove 202, the rotating adjusting actuator 1 can stop the adjusting actuator 1 on the first adjusting pad to drive the bottom of the groove 202 to deform upwards, and when the second adjusting pad is assembled to the groove 202, the rotating adjusting actuator 1 can press the adjusting actuator 1 on the second adjusting pad to deform the bottom of the groove 202 downwards, and the specific case of adjusting the rotating adjusting actuator 1 is as follows.
Referring to fig. 1 and 2, in a state where it is required to upwardly adjust the bottom of the groove 202, the first adjusting pad is assembled to the groove 202, the first portion of the first adjusting pad is supported on the surface of the cover plate 200 surrounding the groove 202, and a gap is provided between the second portion of the first adjusting pad and the bottom surface of the groove 202, and when the adjusting actuator 1 is screwed (locked), the adjusting actuator 1 applies an upward pulling force to the boss 201 on the cover plate 200 due to the stopping action of the first adjusting pad, so that the cover plate 200 is upwardly deformed, thereby increasing the distance between the cover plate 200 and the filter resonance rod 2, and achieving the purpose of adjusting the resonance frequency. By adopting the above scheme, because the first part of the first adjusting pad is supported on the surface of the cover plate 200 surrounding the groove 202, and a gap is formed between the second part of the first adjusting pad and the bottom surface of the groove 202, when the second part of the first adjusting pad is supported on the bottom surface of the groove 202 in the process of adjusting the deformation of the cover plate 200 by screwing the adjusting executing member 1, the upward deformation of the cover plate 200 reaches the maximum, and even if screwing the adjusting executing member 1 is continued at this time, the cover plate 200 can not be deformed continuously, based on the above, the deformation of the cover plate 200 can be controlled within a certain range, and the performance index adjustment of the filter is more controllable.
In a state that the bottom of the groove 202 needs to be adjusted downwards, the second adjusting pad is assembled at the groove 202, a gap is reserved between the first part of the second adjusting pad and the surface of the cover plate 200 surrounding the groove 202, the second part of the second adjusting pad is supported on the bottom surface of the groove 202, when the adjusting executing piece 1 is screwed (locked), the pressing action of the adjusting piece 1 on the second adjusting pad is executed, the second part of the second adjusting pad directly presses down the bottom of the groove 202 of the cover plate 200, the cover plate 200 is deformed downwards, and therefore the distance between the cover plate 200 and the filter resonance rod 2 is reduced, and the purpose of adjusting the resonance frequency is achieved. By adopting the above scheme, because the gap is formed between the first part of the second adjusting pad and the surface of the cover plate 200 surrounding the groove 202, the second part of the second adjusting pad is supported on the bottom surface of the groove 202, so that when the first part of the second adjusting pad is supported on the surface of the cover plate 200 surrounding the groove 202 in the process of adjusting the deformation of the cover plate 200 by screwing the adjusting actuator 1, the downward deformation of the cover plate 200 reaches the maximum, and even if screwing the adjusting actuator 1 is continued, the cover plate 200 can not continue to deform downwards, based on the gap, the deformation of the cover plate 200 can be controlled within a certain range, and the performance index adjustment of the filter is more controllable.
It should be noted that the bottom of the groove 202 needs to be adjusted upward or downward, not depending on the bottom state of the groove 202, but depending on the tuning frequency. For example, when the bottom of the groove 202 is deformed downward, it may be necessary to adjust upward, or it may be necessary to continue the downward adjustment; when the bottom of the groove 202 deforms upwards, the downward adjustment may be needed, or the upward adjustment may be needed to be continued; the bottom of the recess 202 may also need to be adjusted upward or downward when it is not deformed in the up-down direction. The second portions of the first and second adjusting pads have different heights, so that the requirement of adjusting the bottom of the groove 202 downward or upward can be satisfied.
Specifically, the height of the second portion of the first conditioner mat is less than the depth of the groove 202 and the height of the second portion of the second conditioner mat is greater than the depth of the groove 202.
Referring to fig. 2 and 3, according to one embodiment of the present utility model, the first portion of the adjustment pad 300 is a ring-shaped support table 301, the ring-shaped support table 301 is disposed around the boss portion 201, the second portion is a support column 302 provided on a side of the ring-shaped support table 301 facing the groove 202, and the ring-shaped support table 301 covers an outer circumferential surface of the groove 202 when the adjustment pad 300 is fitted to the groove 202, and in a radial direction of the groove 202 (i.e., a direction perpendicular to an axial direction of the filter resonance rod 2).
In some embodiments, the first and second adjustment pads are each a ring-shaped support 301 and each second adjustment pad is a support column 302, and the support columns 302 corresponding to the first and second adjustment pads are each of different lengths.
Of course, as other embodiments, the annular supporting table 301 may be replaced by a petal-like form in which a plurality of semicircular plates are arranged in a circle.
Referring to fig. 3, according to the preferred embodiment of the present utility model, the number of the support columns 302 is plural, the plurality of support columns 302 are disposed on the annular support table 301 at intervals along the circumferential direction of the annular support table 301, and the plurality of support columns 302 are designed so that when the adjustment actuator 1 is screwed (locked), more deformation adjustment points corresponding to the cover plate 200 exist around the boss 201, and thus local overall deformation of the cover plate 200 is adjusted.
Referring to fig. 3, more preferably, the number of the support columns 302 is at least 4, and at least 4 support columns 302 are disposed on the annular support table 301 at equal angular intervals along the circumferential direction of the annular support table 301, and it can be understood based on the above embodiment that more support columns 302 may be added with more deformation adjustment points of the cover plate 200.
Referring to fig. 1 and 2, according to an embodiment of the present utility model, the cover plate 200 and the boss 201 are integrally formed, and the boss 201 may be a cylinder having external threads, similar to a threaded rod, a bolt structure.
According to another embodiment of the present utility model, the stud portion 201 is detachably mounted on the cover plate 200, and the stud portion 201 is a threaded rod or a bolt structure mounted on the cover plate 200, for example, may be press-riveted to the cover plate 200.
Referring to fig. 1 and 4, according to one embodiment of the utility model, the adjustment actuator 1 is a nut, which is easy to screw with a wrench, or may be an alternative element to the nut.
According to an embodiment of the present utility model, the cover 200 is provided with a plurality of grooves 202, the grooves 202 are provided with corresponding convex column portions 201, adjusting pads 300 and adjusting executing pieces 1, so that when the cover 200 has more positions to adjust deformation, for example, 4 filter resonance rods 2 in a filter, 4 grooves 202 are provided at positions of the cover 200 corresponding to the 4 filter resonance rods 2, and of course, when other positions of the cover 200 not corresponding to the filter resonance rods 2 have the deformation requirement of the adjusting cover 200, the grooves 202 can be provided at the other positions of the cover 200, and then the corresponding convex column portions 201, the adjusting pads 300 and the adjusting executing pieces 1 are provided in a matching manner.
Of course, if the cover plate 200 is provided with a plurality of grooves 202, different grooves 202 may be deformed differently, for example, the bottom of some grooves 202 may be deformed upwardly and the bottom of some grooves 202 may be deformed downwardly, then the first or second adjusting pad may be assembled at the corresponding groove 202 with reference to the above scheme, that is, in this case, different adjusting pads 300 (first or second adjusting pad) may be simultaneously assembled on the cover plate 200.
The foregoing description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the utility model, since it is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (10)
1. A filter, comprising:
a housing formed with a chamber capable of accommodating the resonant rod;
the cover plate is arranged on the shell and covers the cavity, and a convex column part and a groove surrounding the convex column part are arranged on the surface of one side of the cover plate, which faces away from the cavity;
an adjustment pad comprising at least a first portion and a second portion, the first portion being located outside the recess and the second portion being located inside the recess when the adjustment pad is assembled to the recess;
the adjusting executing piece is in threaded connection with the convex column part and is positioned on one side, deviating from the cover plate, of the adjusting pad, the adjusting executing piece can rotate along the convex column part and press the adjusting pad, so that the bottom of the groove is deformed to adjust the distance between the cover plate and the resonance rod.
2. The filter of claim 1, wherein the conditioning pads comprise at least a first conditioning pad and a second conditioning pad, each comprising the first portion and the second portion, the second portion of the first conditioning pad having a height that is less than a height of the second portion of the second conditioning pad.
3. The filter of claim 2, wherein when the first adjustment pad is assembled to the recess, rotating the adjustment actuator stops the adjustment actuator against the first adjustment pad to deform the bottom of the recess upward.
4. The filter of claim 2, wherein rotating the adjustment actuator when the second adjustment pad is assembled to the recess causes the adjustment actuator to press against the second adjustment pad to deform the bottom of the recess downward.
5. The filter of claim 2, wherein a height of the second portion of the first conditioner mat is less than a depth of the recess, the height of the second portion of the second conditioner mat being greater than the depth of the recess.
6. The filter of any of claims 2 to 5, wherein the first portion of the tuning pad is an annular support land disposed around the post portion and the second portion is a support post disposed on a side of the annular support land facing the recess.
7. The filter of claim 6, wherein the number of support columns is plural, and the plurality of support columns are disposed on the annular support table at intervals along a circumferential direction of the annular support table.
8. The filter of any of claims 1 to 5, wherein the cover plate and the post portion are integrally formed; or (b)
The post portion is detachably mounted on the cover plate.
9. The filter of any of claims 1 to 5, wherein the adjustment actuator is a nut.
10. The filter according to any one of claims 1 to 5, wherein a plurality of the grooves are provided on the cover plate, and the corresponding stud portions, the adjustment pads, and the adjustment actuator are provided at the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125013.9U CN220510225U (en) | 2023-08-08 | 2023-08-08 | Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322125013.9U CN220510225U (en) | 2023-08-08 | 2023-08-08 | Filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220510225U true CN220510225U (en) | 2024-02-20 |
Family
ID=89875852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322125013.9U Active CN220510225U (en) | 2023-08-08 | 2023-08-08 | Filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220510225U (en) |
-
2023
- 2023-08-08 CN CN202322125013.9U patent/CN220510225U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |