CN205376708U - Cavity filter with heat radiation structure - Google Patents
Cavity filter with heat radiation structure Download PDFInfo
- Publication number
- CN205376708U CN205376708U CN201620003128.8U CN201620003128U CN205376708U CN 205376708 U CN205376708 U CN 205376708U CN 201620003128 U CN201620003128 U CN 201620003128U CN 205376708 U CN205376708 U CN 205376708U
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- boss
- cavity
- cover plate
- circulus
- radiator structure
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Abstract
The utility model discloses a cavity filter with heat radiation structure, including apron (1), cavity and tuning screw (6), the cavity includes two the same resonant cavity (2), the bottom of resonant cavity (2) be provided with heating panel (3), be provided with boss (4) directly over the heating panel, be provided with resonance bar (5) on boss (4), tuning screw (6) pass the apron and set up downtheholely in resonant cavity (2), apron (1) on still be provided with annular structure (9) of passing apron (1), the one end of resonance bar (5) and boss (4) contact be provided with counter bore (12), the pore wall of counter bore (12) forms annulus region (13) with resonance bar's outer fringe, be provided with on boss (4) and annulus region (13) matched with annular groove (14). The utility model provides a cavity filter with heat radiation structure has increased heat radiating area, has simple structure, easily production, advantage that the radiating effect is good.
Description
Technical field
This utility model relates to a kind of cavity body filter with radiator structure.
Background technology
Cavity body filter is widely used in the communications field as a kind of frequency-selecting equipment；In prior art, cavity body filter does not possess radiator structure, and thermal conductivity is poor, so that the electricity function index of wave filter declines, it is impossible to meet the demand of work.
Application number is " cavity body filter " of the patent disclosure of 201320426525.2, it is contemplated that the heat radiation of wave filter, but its structure is complicated, it is necessary to extra metal conducting strip, and heat radiation contact area is little, and effect is unsatisfactory.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, it is provided that a kind of cavity body filter with radiator structure, increases area of dissipation, has simple in construction, it is easy to produce, the advantage of good heat dissipation effect.
The purpose of this utility model is achieved through the following technical solutions: a kind of cavity body filter with radiator structure, including cover plate, cavity and tuning screw;Cover plate is covered on cavity, and cavity includes two identical resonator cavitys;
The bottom of described resonator cavity is provided with heat sink, heat sink be arranged above boss, boss is provided with resonant rod;Described tuning screw is arranged in the endoporus of resonator cavity through cover plate；Described cover plate is additionally provided with the circulus through cover plate；
One end that described resonant rod contacts with boss is provided with counterbore, and the outer rim of the hole wall of counterbore and resonant rod forms annulus；
Boss is provided with the annular groove matched with annulus.
Being isolated by separator between described resonator cavity, the middle part of described separator is provided with coupling window, is provided with male part in coupling window, and the two ends of male part are connected with the sidewall of two resonator cavitys respectively.
Described boss is heat conduction boss, it is possible to be metal heat-conducting boss, for instance copper heat conduction boss etc., it is also possible to be nonmetallic heat conductive boss, such as ceramic boss etc..
Being provided with annular through-hole and tuned window on described cover plate, circulus is by annular through-hole traverse cover plate;Tuning screw is by tuned window traverse cover plate.
The surfaces externally and internally of described circulus is provided with the first screw thread；Being provided with the second screw thread matched with circulus in annular through-hole, circulus can pass through the first screw thread and second threaded adjustment degree of depth in own resonance chamber.
Described resonant rod is silver-plated resonant rod.
Described annulus is identical with the size of annular groove.
The beneficial effects of the utility model are: arrange counterbore on (1) resonant rod, counterbore forms annulus with resonant rod outer rim, and on boss, it being provided with the groove matched with annulus so that resonant rod can be directly arranged on boss, easy to assembly and steadiness is high.
(2) by the counterbore on resonant rod, annulus, and coordinating of boss upper groove, adding the contact area of boss and resonant rod, again owing to boss is heat conduction boss, boss is arranged below heat sink, therefore can dramatically increase the radiating effect of resonant rod.
(3) cover plate is provided with ring assembling structure, by increasing capacitance it is possible to increase the capacitance of cavity, meets the demand of low frequency filtering.
(4) surfaces externally and internally of circulus is provided with the first screw thread；Being provided with the second screw thread matched with circulus in annular through-hole, circulus can pass through the first screw thread and second threaded adjustment degree of depth in own resonance chamber, thus regulating the capacitance increased in cavity, the scope of application making wave filter is wider.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of resonant rod；
Fig. 3 is the structural representation of boss；
Fig. 4 is the structural representation of cover plate；
In figure, 1-cover plate, 2-resonator cavity, 3-heat sink, 4-boss, 5-resonant rod, 6-tuning screw, 7-separator, 8-couples window, 9-circulus, 10-annular through-hole, 11-tuned window, 12-counterbore, 13-annulus, 14-annular groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As it is shown in figure 1, a kind of cavity body filter with radiator structure, including cover plate 1, cavity and tuning screw 6;Cavity includes two identical resonator cavitys 2;
The bottom of described resonator cavity 2 is provided with heat sink 3, heat sink be arranged above boss 4, boss 4 is provided with resonant rod 5;Described tuning screw 6 is arranged in the endoporus of resonator cavity 2 through cover plate；Described cover plate 1 is additionally provided with the circulus 9 through cover plate 1；
As in figure 2 it is shown, the outer rim that one end that described resonant rod 5 contacts with boss 4 is provided with counterbore 12, the hole wall of counterbore 12 and resonant rod forms annulus 13；
As it is shown on figure 3, boss 4 is provided with the annular groove 14 matched with annulus 13.
Resonant rod 5 can be directly arranged on boss 4, easy to assembly and steadiness is high, to improve stability further, it is also possible to will be undertaken bonding by epoxide-resin glue between resonant rod 5 with boss 4.
Being directly fixed on boss 4 compared to resonant rod 5, the contact area between resonant rod and boss is greatly increased, thus being effectively increased radiating effect.
Specifically, directly fixing only one of which contact surface, and according to the scheme of the application, resonant rod annulus 13 can fit together completely with the groove 14 in boss 4, add the roof of counterbore 12 also can with boss 4 upper surface, so significantly increasing contact area.
Being isolated by separator 7 between described resonator cavity 2, the middle part of described separator 7 is provided with coupling window 8, is provided with male part in coupling window, and the two ends of male part are connected with the sidewall of two resonator cavitys 2 respectively.
Described boss 4 is heat conduction boss.
As shown in Figure 4, described cover plate 1 being provided with annular through-hole 10 and tuned window 11, circulus 9 is by annular through-hole 10 traverse cover plate;Tuning screw 6 is by tuned window 11 traverse cover plate.
The surfaces externally and internally of described circulus 9 is provided with the first screw thread；Being provided with the second screw thread matched with circulus 9 in annular through-hole 10, circulus 9 can pass through the first screw thread and second threaded adjustment degree of depth in own resonance chamber.
Circulus 9 is rotated, and under the cooperation of the first screw thread and the second screw thread, adjustable circulus 9 is in the degree of depth of resonator cavity, thus capacitance is adjusted.
Described resonant rod 5 is silver-plated resonant rod.
Described annulus 13 is identical with the size of annular groove 14.
Claims (7)
1. a cavity body filter with radiator structure, it is characterised in that: include cover plate (1), cavity and tuning screw (6);Cavity includes two identical resonator cavitys (2);
The bottom of described resonator cavity (2) is provided with heat sink (3), heat sink be arranged above boss (4), boss (4) is provided with resonant rod (5);Described tuning screw (6) is arranged in the endoporus of resonator cavity (2) through cover plate；Described cover plate (1) is additionally provided with the circulus (9) through cover plate (1)；
One end that described resonant rod (5) contacts with boss (4) is provided with the outer rim of counterbore (12), the hole wall of counterbore (12) and resonant rod and forms annulus (13)；
Boss (4) is provided with the annular groove (14) matched with annulus (13).
2. a kind of cavity body filter with radiator structure according to claim 1, it is characterised in that: isolated by separator (7) between described resonator cavity (2)；The middle part of described separator (7) is provided with coupling window (8), is provided with male part in coupling window, and the two ends of male part are connected with the sidewall of two resonator cavitys (2) respectively.
3. a kind of cavity body filter with radiator structure according to claim 1, it is characterised in that: described boss (4) is heat conduction boss.
4. a kind of cavity body filter with radiator structure according to claim 1, it is characterized in that: be provided with annular through-hole (10) and tuned window (11) on described cover plate (1), circulus (9) is by annular through-hole (10) traverse cover plate;Tuning screw (6) is by tuned window (11) traverse cover plate.
5. a kind of cavity body filter with radiator structure according to claim 1, it is characterised in that: the surfaces externally and internally of described circulus (9) is provided with the first screw thread；Being provided with the second screw thread matched with circulus (9) in annular through-hole (10), circulus (9) can pass through the first screw thread and second threaded adjustment degree of depth in own resonance chamber.
6. a kind of cavity body filter with radiator structure according to claim 1, it is characterised in that: described resonant rod (5) is silver-plated resonant rod.
7. a kind of cavity body filter with radiator structure according to claim 1, it is characterised in that: described annulus (13) is identical with the size of annular groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003128.8U CN205376708U (en) | 2016-01-05 | 2016-01-05 | Cavity filter with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003128.8U CN205376708U (en) | 2016-01-05 | 2016-01-05 | Cavity filter with heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376708U true CN205376708U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620003128.8U Active CN205376708U (en) | 2016-01-05 | 2016-01-05 | Cavity filter with heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205376708U (en) |
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2016
- 2016-01-05 CN CN201620003128.8U patent/CN205376708U/en active Active
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |