CN102136616A - Cavity filter and communication equipment - Google Patents
Cavity filter and communication equipment Download PDFInfo
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- CN102136616A CN102136616A CN 201010555668 CN201010555668A CN102136616A CN 102136616 A CN102136616 A CN 102136616A CN 201010555668 CN201010555668 CN 201010555668 CN 201010555668 A CN201010555668 A CN 201010555668A CN 102136616 A CN102136616 A CN 102136616A
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- circuit board
- cavity body
- body filter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
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Abstract
The embodiment of the invention discloses a cavity filter. The cavity filter comprises a cavity body, a cover plate and an in-connector conductor, wherein the in-connector conductor is arranged in the cavity body and passes through the cavity body or the cover plate to connect a signal transfer point of an external circuit board of the cavity filter; the in-connector conductor comprises an elastic part; and the elasticity function of the elastic part is used for eliminating the relative position error between the in-connector conductor and the signal transfer point of the circuit board, ensuring good contact between the in-connector conductor and the signal transfer point of the external circuit board of the cavity filter, and avoiding the deformation damage of the circuit board in an installation process.
Description
[technical field]
The embodiment of the invention relates to communication technical field, and particularly the connected mode of connector inner wire and the external circuit board in the cavity body filter also relates to a kind of communication equipment that uses this cavity body filter.
[background technology]
Cavity body filter is widely used in the communications field as a kind of frequency selection device because the specific (special) requirements that cavity body filter transmits signal, between its each assembly and and joint outer part between interconnective precision have relatively high expectations.
See also Fig. 1 a, Fig. 1 a has shown a kind of schematic partial cross-sectional view of cavity body filter in the prior art, has wherein also shown the external circuit board that part is connected with cavity body filter.
As shown in Figure 1a, this cavity body filter comprises cavity 100, cover plate 110, connector outer conductor 120 and connector inner wire 130.
Please in the lump referring to Fig. 1 b and Fig. 1 c, wherein, Fig. 1 b has shown the partial structurtes schematic diagram of the circuit board among Fig. 1 a; Fig. 1 c has shown the circuit board among Fig. 1 a and the rigging error schematic diagram of inner wire.
Shown in Fig. 1 b, this circuit board 150 is provided with ear shape hole 151, and the central hole that screw 152 runs through this ear shape hole 151 is connected with connector inner wire 130.Shown in Fig. 1 c; when the height of inner wire 130 is lower than assembling base plane, can there be gap h in inner wire 130 and circuit board 150 owing to make and directional error usually; and when the height of inner wire 130 is higher than assembling base plane, then may be with circuit board 150 jack-up (not shown)s.
In research and practice process to prior art, the present inventor finds, in the above-mentioned prior art: the ear shape hole 151 on this circuit board 150 is relatively more fragile, owing to reasons such as the spacing moment of torsion excessive or screw 152 of itself and connector inner wire 130 is excessive cause the circuit board 150 and the gap of connector inner wire 130 to be difficult for tuning easily, for example circuit board 150 can deform, the situations such as root appearance fracture in short circuit or ear shape hole 151 can appear in circuit board 150 when serious, be difficult to eliminate the relative position error between the signal transfer point of connector inner wire 130 and circuit board 150, can not guarantee good contact the between the signal transfer point of connector inner wire 130 and cavity body filter the external circuit board 150.
[summary of the invention]
Fragile in order to solve in the prior art ear shape boring ratio on the circuit board, reason causes the gap of circuit board and connector inner wire to be difficult for problem tuning, that distortion, short circuit and fracture appear in circuit board easily owing to the distance moment of torsion excessive or screw of itself and connector inner wire is excessive etc., and the embodiment of the invention provides a kind of cavity body filter and a kind of communication equipment that improves structure.
The embodiment of the invention solves the problems of the technologies described above the technical scheme of being taked and provides a kind of cavity body filter, comprise cavity, cover plate and be located at the interior connector inner wire of cavity, the connector inner wire passes cavity or cover plate, be connected with the signal transfer point of cavity body filter the external circuit board, wherein the connector inner wire comprises elastic portion, the spring function of elastic portion is used to eliminate the relative position error between the signal transfer point of connector inner wire and circuit board, guarantees well to contact between the signal transfer point of connector inner wire and cavity body filter the external circuit board.
The embodiment of the invention also discloses a kind of communication equipment, this communication device configured has above-mentioned cavity body filter, and signal processing unit, and cavity body filter is located at the signal circuit part of communication equipment, be used for the frequency of signal is selected, signal processing unit comprises circuit board.
The embodiment of the invention also discloses a kind of cavity body filter, comprise cavity, cover plate and be located at the interior signal transferring structure spare of cavity, signal transferring structure spare passes cavity or cover plate, be connected with the signal transfer point of cavity body filter the external circuit board, wherein, signal transferring structure spare has elasticity in whole or in part, spring function is used for the relative position error between the signal transfer point of erasure signal transferring structure spare and circuit board, makes well to contact between the signal transfer point of signal transferring structure spare and cavity body filter the external circuit board.
The cavity body filter that the embodiment of the invention provides has proposed improvement project at the connected mode of circuit board and connector inner wire, can eliminate the relative position error between the signal transfer point of connector inner wire and circuit board, can guarantee well to contact between the signal transfer point of connector inner wire and cavity body filter the external circuit board.Improved the connection reliability of connector inner wire and circuit board in the cavity body filter greatly, circuit board and connector inner wire keep close-fitting by elastic force, not fragile circuit board, and can guarantee the signal good communication.
[description of drawings]
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.Wherein
Fig. 1 a has shown a kind of schematic partial cross-sectional view of cavity body filter in the prior art, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter;
Fig. 1 b has shown the structural representation of the circuit board among Fig. 1 a;
Fig. 1 c has shown the circuit board among Fig. 1 a and the rigging error schematic diagram of inner wire;
Fig. 2 a has shown the connector inner wire of cavity body filter according to one preferred embodiment of the present invention and the assembly structure schematic diagram of the external circuit board;
Fig. 2 b has shown the schematic partial cross-sectional view that adopts the cavity body filter of the assembly structure shown in Fig. 2 a, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter;
Fig. 3 a has shown the connector inner wire of the cavity body filter of another preferred embodiment and the assembly structure schematic diagram of the external circuit board according to the present invention;
Fig. 3 b has shown the schematic partial cross-sectional view that adopts the cavity body filter of the assembly structure shown in Fig. 3 a, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter;
Fig. 4 a has shown the connector inner wire of the cavity body filter of another preferred embodiment and the assembly structure schematic diagram of the external circuit board according to the present invention;
Fig. 4 b has shown the schematic partial cross-sectional view that adopts the cavity body filter of the assembly structure shown in Fig. 4 a, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter;
Fig. 5 has shown the schematic diagram of the another kind of elastic construction that can be applicable to Fig. 4 a illustrated embodiment;
Fig. 6 a has shown the connector inner wire of the cavity body filter of another preferred embodiment and the assembly structure schematic diagram of the external circuit board according to the present invention;
Fig. 6 b has shown the schematic partial cross-sectional view that adopts the cavity body filter of the assembly structure shown in Fig. 6 a, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter;
Fig. 7 a has shown the connector inner wire of the cavity body filter of another preferred embodiment and the assembly structure schematic diagram of the external circuit board according to the present invention; And
Fig. 7 b has shown the schematic partial cross-sectional view that adopts the cavity body filter of the assembly structure shown in Fig. 7 a, for clear, has wherein also shown the external circuit board that part is connected with cavity body filter.
[embodiment]
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of cavity body filter, comprise cavity, cover plate and be located at the interior connector inner wire of cavity, the connector inner wire passes cavity or cover plate, be connected with the signal transfer point of cavity body filter the external circuit board, wherein the connector inner wire comprises elastic portion, the spring function of elastic portion is used to eliminate the relative position error between the signal transfer point of connector inner wire and circuit board, guarantees well to contact between the signal transfer point of connector inner wire and cavity body filter the external circuit board.
The embodiment of the invention also provides a kind of communication equipment, this communication device configured has above-mentioned cavity body filter and signal processing unit, signal processing unit comprises circuit board, and cavity body filter is located at the signal circuit part of communication equipment, is used for the frequency of signal is selected.
The embodiment of the invention also discloses a kind of cavity body filter, comprise cavity, cover plate and be located at the interior signal transferring structure spare of cavity, signal transferring structure spare passes cavity or cover plate, be connected with the signal transfer point of cavity body filter the external circuit board, wherein, signal transferring structure spare has elasticity in whole or in part, spring function is used for the relative position error between the signal transfer point of erasure signal transferring structure spare and circuit board, makes well to contact between the signal transfer point of signal transferring structure spare and cavity body filter the external circuit board.Below in conjunction with embodiment cavity body filter provided by the invention is described in detail.
Embodiment one
A kind of cavity body filter, the assembly structure of its connector inner wire 230 and external circuit plate 250 is shown in 2a.
See also Fig. 2 a, connector inner wire 230 keeps good with circuit board 250 by electrically conductive elastic spare 260 and contacts.
In the present embodiment, first end 262 of electrically conductive elastic spare 260 elongated shape electrically conductive elastic spares 260 is connected with the resonator or the cavity (not shown) of cavity body filter, and second end 264 of electrically conductive elastic spare 260 is connected with the bottom 234 of connector inner wire 230.Wherein, the top 232 of connector inner wire 230 is provided with screw (not sign), and circuit board 250 is provided with the through hole (not sign) of coupling, and connector inner wire 230 is connected with circuit board 250 by the screw 252 that runs through circuit board 250.
Understand easily, connector inner wire 230 keeps connector inner wire 230 well to contact with circuit board 250 by the elastic reaction of electrically conductive elastic spare 260.Electrically conductive elastic spare 260 also can stepped or other shapes, and for example shape can also adopt S shape, other shapes such as Z-shaped.Concrete foundation is to flexible demand, and the shape and size of its electrically conductive elastic spare 260 can carry out freely selecting.After connecting electrically conductive elastic spare 260,230 of connector inner wires are microdisplacement up and down.In the ordinary course of things, lead 260 bodies in the connector and can do the spacing of circumferencial direction, guarantee that it does not rotate vertically.
Next, please in the lump referring to Fig. 2 b, this cavity body filter comprises cavity 200, cover plate 210, connector outer conductor 220, connector inner wire 230 and electrically conductive elastic spare 260.
Wherein, cover plate 210 capping cavitys 200.Connector outer conductor 220 is connected with cover plate 210, connector inner wire 230 is located in the connector outer conductor 220, and connector inner wire 230 passes cover plate 210, be connected with the signal transfer point of cavity body filter the external circuit board 250, generally speaking, connector outer conductor 220 and connector inner wire 230 adopt coaxial design, constitute the structure that signal transmits.In addition, be provided with insulator 222 between connector outer conductor 220 and the connector inner wire 230, be used to separate connector outer conductor 220 and connector inner wire 230, prevent that simultaneously foreign matter from entering in the cavity.
The cavity body filter outside is provided with circuit board supporting seat 240, and this circuit board supporting seat 240 is located at connector outer conductor 220 tops, is used for support circuit plate 250, and in the present embodiment, circuit board 250 is provided with through hole 251.Connector outer conductor 220 further is provided with conduction insulation rubber 224 with circuit board supporting seat 240 contact portions, is used to prevent leakage signal.
In the present embodiment, first end 262 of electrically conductive elastic spare 260 is connected with the resonator or the cavity of cavity body filter, second end 264 of electrically conductive elastic spare 260 is connected with the bottom 234 of connector inner wire 230, and the top 232 of connector inner wire 230 is connected with circuit board 250 by screw 252.The elastic reaction that makes progress by electrically conductive elastic spare 260 guarantees well to contact between the signal transfer point of connector inner wire 230 and cavity body filter the external circuit board 250.
In embodiments of the present invention, second end 264 of electrically conductive elastic spare 260 can be connected by modes such as riveted joint, crimping, socket, welding or thread connection with the bottom 234 of connector inner wire 230.
Embodiment two
A kind of cavity body filter, the assembly structure of its connector inner wire 330 and the external circuit board 350 is shown in Fig. 3 a.See also Fig. 3 a, connector inner wire 330 keeps good with circuit board 350 by elastic portion 360 and contacts.
In the present embodiment, elastic portion is a U type elastic component 360, the first side wall 362 of this U type elastic component 360 is provided with screw (not sign), circuit board 350 is provided with the through hole (not sign) of coupling, and the first side wall 362 of this U type elastic component 360 is connected by the signal transfer point of screw 352 with circuit board 350.Second sidewall 364 of this U type elastic component 360 is connected with the top 332 of connector inner wire 330.
In embodiments of the present invention, second sidewall 364 of this U type elastic component 360 can be connected by modes such as riveted joint, crimping, socket, welding or thread connection with the top 332 of connector inner wire 330.
Next, please in the lump referring to Fig. 3 b, this cavity body filter comprises cavity 300, cover plate 310, connector outer conductor 320, connector inner wire 330 and U type elastic component 360.
Wherein, cover plate 310 capping cavitys 300.Connector outer conductor 320 is connected with cover plate 310, connector inner wire 330 is located in the connector outer conductor 320, and connector inner wire 330 passes cover plate 310, be connected with the signal transfer point of cavity body filter the external circuit board 350, generally speaking, connector outer conductor 320 and connector inner wire 330 adopt coaxial design, constitute the structure that signal transmits.In addition, be provided with insulator 322 between connector outer conductor 320 and the connector inner wire 330, be used to separate connector outer conductor 320 and connector inner wire 330, prevent that simultaneously foreign matter from entering in the cavity.
The cavity body filter outside is provided with circuit board supporting seat 340, and this circuit board supporting seat 340 is located at connector outer conductor 320 tops, is used for support circuit plate 350, and in the present embodiment, circuit board 350 is provided with through hole.Connector outer conductor 320 further is provided with conduction insulation rubber 324 with circuit board supporting seat 340 contact portions, is used to prevent leakage signal.
In the present embodiment, the first side wall 362 of U type elastic component 360 is connected with the signal transfer point of circuit board 350, second sidewall 364 of U type elastic component 360 is connected with the top 332 of connector inner wire 330, and the bottom 334 of connector inner wire 330 is connected with cavity 300.The first side wall 362 by U type elastic component 360 and the spring function of second sidewall 364 guarantee well to contact between the signal transfer point of connector inner wire 330 and cavity body filter the external circuit board 350.
Need to prove, as the present embodiment modification, U type elastic component 360 can with connector inner wire 330 integrated moldings.
Embodiment three
A kind of cavity body filter, its connector inner wire keep good with the external circuit board by cup type elastic component and contact.
The bottom of this glass type elastic component is connected by the top of screw with the connector inner wire, and the end of this glass type elastic component is connected with the signal transfer point of circuit board, and the end of this glass type elastic component has flexible, well contacts with circuit board elasticity.In a preferred embodiment, circuit board is made metalized with the part that the end of this glass type elastic component contacts, to guarantee the signal good communication, the connector inner wire keeps the connector inner wire to contact with the good of circuit board by the elastic reaction of the end of cup type elastic component.
Embodiment four
A kind of cavity body filter, the assembly structure of its connector inner wire 430 and the external circuit board 450 is shown in Fig. 4 a.See also Fig. 4 a, present embodiment and embodiment three are roughly the same, and its difference is, the cup type elastic component among the embodiment three in the present embodiment with connector inner wire 430 integrated moldings.
Shown in Fig. 4 a, connector inner wire 430 and circuit board 450 keep well contacting with circuit board 450 by the axial elasticity structure of connector inner wire 430 itself.
In the present embodiment, first end of connector inner wire 430 is provided with axial elasticity structure 460, this axial elasticity structure 460 is a cup type elastic component 460, the bottom of this glass type elastic component 460 is connected with the top of connector inner wire 430, this glass type elastic component 460 has makes the compressible flexible tip 462 of cup-shaped elastic component 460 axial dimensions, and this flexible tip 462 keeps Elastic Contact with the signal transfer point of circuit board 450.In a preferred embodiment, this cup-shaped elastic component 460 has radial slot along cup end face circumferencial direction, and this radial slot is used to strengthen the elasticity of cup-shaped elastic component.
Next, please in the lump referring to Fig. 4 b, this cavity body filter comprises cavity 400, cover plate 410, connector outer conductor 420, connector inner wire 430 and cup type elastic component 460.
Wherein, cover plate 410 capping cavitys 400.Connector outer conductor 420 is connected with cover plate 410, connector inner wire 430 is located in the connector outer conductor 420, and connector inner wire 430 passes cover plate 410, be connected with the signal transfer point of cavity body filter the external circuit board 450, generally speaking, connector outer conductor 420 and connector inner wire 430 adopt coaxial design, constitute the structure that signal transmits.In addition, be provided with insulator 422 between connector outer conductor 420 and the connector inner wire 430, be used to separate connector outer conductor 420 and connector inner wire 430, prevent that simultaneously foreign matter from entering in the cavity.
The cavity body filter outside is provided with circuit board supporting seat 440, and this circuit board supporting seat 440 is located at connector outer conductor 420 tops, is used for support circuit plate 450, and in the present embodiment, circuit board 450 is not provided with through hole.Connector outer conductor 420 further is provided with conduction insulation rubber 424 with circuit board supporting seat 440 contact portions, is used to prevent leakage signal.
In the present embodiment, the bottom of cup type elastic component 460 is connected with the top of connector inner wire 430, this glass type elastic component 460 has makes the compressible flexible tip 462 of cup-shaped elastic component axial dimension, and this flexible tip 462 keeps Elastic Contact with the signal transfer point of circuit board 450.In a preferred embodiment, this cup-shaped elastic component 460 has radial slot along cup end face circumferencial direction, and this radial slot is used to strengthen the elasticity of cup-shaped elastic component.Connector inner wire 430 keeps connector inner wire 430 well to contact with circuit board 450 by the elastic reaction of the flexible tip 462 of cup type elastic component 460.
Fetch down, please in the lump referring to Fig. 5, Fig. 5 has shown the schematic diagram of the elasticity of substitution structure that can be applicable to Fig. 4 a illustrated embodiment.
In embodiment three and embodiment four, the cup type elastic component of being mentioned all can adopt elastic construction shown in Figure 5, as shown in Figure 5, this elastic construction comprises body 560 and is located at the flexible portion 562 of these body 560 ends, this body 560 further is provided with a plurality of radial slots, can increase the coefficient of elasticity of this elastic construction.Adopt this structure can realize that the connector inner wire contacts with the good of circuit board
Embodiment five
A kind of cavity body filter, its connector inner wire keeps well contacting with circuit board with the radial elastic structure of the external circuit board by connector inner wire itself.
In the present embodiment, circuit board is provided with through hole, and the top of connector inner wire is provided with the radial elastic structure, and the top that this radial elastic structure is embodied in the connector inner wire is provided with a plurality of radial slots.The diameter at the top of this connector inner wire is greater than the diameter of the through hole on the circuit board, thereby the elasticity close-fitting pressure that makes the connector inner wire have when inserting this through hole to extend out guarantees that the connector inner wire well contacts with circuit board.It should be noted that in the present embodiment the top of connector inner wire is provided with jut, this jut engages with the circuit-board card button.
Embodiment six
A kind of cavity body filter, its connector inner wire keeps well contacting with circuit board with the radial elastic structure of the external circuit board by connector inner wire itself.
In the present embodiment, circuit board is provided with through hole, and the top of connector inner wire is provided with the radial elastic structure, and the top that this radial elastic structure is embodied in the connector inner wire is provided with a plurality of radial slots.The diameter at the top of this connector inner wire is greater than the diameter of the through hole on the circuit board, thereby the good contact pressure that makes the connector inner wire have when inserting this through hole to extend out guarantees that the connector inner wire well contacts with circuit board, in the present embodiment, the top of connector inner wire is provided with jut equally, yet, this jut is different with embodiment five, and this jut is used for keeping well contacting with circuit board, but not engages with the circuit-board card button.
Embodiment seven
A kind of cavity body filter, the assembly structure of its connector inner wire 630 and the external circuit board 650 is shown in Fig. 6 a.See also Fig. 6 a, connector inner wire 630 and circuit board 650 keep well contacting with circuit board 650 by the radial elastic structure of connector inner wire 630 itself.
In the present embodiment, circuit board 650 is provided with through hole, the top of connector inner wire 630 is provided with radial elastic structure 632, in a preferred embodiment, this radial elastic structure 632 is for having the top hollow structure of radial slot, this top hollow structure 632 comprises at least two radial slots, concrete radial slot can be designed as 2,3,4,5,6,7,8 or more, the diameter of this top hollow structure 632 is greater than the diameter of through hole, this top hollow structure 632 inserts through hole, and this top hollow knot 632 has the elasticity close-fitting pressure that extends out and keeps well contacting with through-hole wall.
In a preferred embodiment, this through-hole wall is made metalized to carry out the signal transmission.It should be noted that in the present embodiment the top 632 of connector inner wire 630 is the polished rod formula, process easyly, save cost.
Next, please in the lump referring to Fig. 6 b, this cavity body filter comprises cavity 600, cover plate 610, connector outer conductor 620 and connector inner wire 630.
Wherein, cover plate 610 capping cavitys 600.Connector outer conductor 620 is connected with cover plate 610, connector inner wire 630 is located in the connector outer conductor 620, and connector inner wire 630 passes cover plate 610, be connected with the signal transfer point of cavity body filter the external circuit board 650, generally speaking, connector outer conductor 620 and connector inner wire 630 adopt coaxial design, constitute the structure that signal transmits.In addition, be provided with insulator 622 between connector outer conductor 620 and the connector inner wire 630, be used to separate connector outer conductor 620 and connector inner wire 630, prevent that simultaneously foreign matter from entering in the cavity.
The cavity body filter outside is provided with circuit board supporting seat 640, and this circuit board supporting seat 640 is located at connector outer conductor 620 tops, is used for support circuit plate 650, and in the present embodiment, circuit board 650 is provided with through hole.Connector outer conductor 620 further is provided with conduction insulation rubber 624 with circuit board supporting seat 640 contact portions, is used to prevent leakage signal.
In the present embodiment, the bottom 634 of connector inner wire 630 is connected with cavity 600.Radial elastic structures by connector inner wire 630 itself guarantee well to contact between the signal transfer point of connector inner wire 630 and cavity body filter the external circuit board 650.
Embodiment eight
A kind of communication equipment.This communication device configured has above-mentioned cavity body filter and signal processing unit.This cavity body filter is located at the signal circuit part of communication equipment, is used for the frequency of signal is selected.This signal processing unit comprises circuit board, circuit board supporting seat and conduction insulation rubber, the circuit board supporting seat is located at above-mentioned connector outer conductor top, be used for the support circuit plate, the conduction insulation rubber is located at connector outer conductor and circuit board supporting seat contact portion, is used to prevent leakage signal.
Embodiment nine
A kind of cavity body filter.The assembly structure of its signal transferring structure spare 730 and the external circuit board 750 is shown in Fig. 7 a.See also Fig. 7 a, signal transferring structure spare 730 and circuit board 750 keep well contacting with circuit board by the elasticity of signal transferring structure spare 730 itself.
Particularly, first end 732 of signal transferring structure spare 730 is connected with the resonator or the cavity (not shown) of cavity body filter, and second end 734 of signal transferring structure spare 730 is connected with circuit board 750.Wherein, circuit board 750 is provided with through hole (not sign), and the corresponding through hole that is provided with of second end of signal transferring structure spare 730 is connected signal transferring structure spare 730 by the screw 752 that runs through circuit board 750 with circuit board 750.In the present embodiment, signal transferring structure spare 730 utilizes the elasticity of itself to keep well contacting with circuit board 750, and its true form is unrestricted.
Next, please in the lump referring to Fig. 7 b, this cavity body filter comprises cavity 700, cover plate 710, connector outer conductor 720 and is located at the interior signal transferring structure spare 730 of cavity.
Wherein, cover plate 710 capping cavitys 700.Connector outer conductor 720 is connected with cover plate 710, first end 732 of signal transferring structure spare 730 is connected with the resonator or the cavity (not shown) of cavity body filter, and second end 734 of signal transferring structure spare 730 passes connector outer conductor 720 and is connected with the signal transfer point of circuit board 750.In addition, connector outer conductor 720 further is provided with conduction insulation rubber 724 with circuit board supporting seat 740 contact portions, is used to prevent leakage signal.
In a preferred embodiment, cavity body filter also comprises insulator (not shown), and signal transferring structure spare 730 is located in the connector outer conductor 720; Insulator is located between connector outer conductor 720 and the signal transferring structure spare 730, is used to separate connector outer conductor 720 and signal transferring structure spare 730, prevents that simultaneously foreign matter from entering in the cavity.The cavity body filter outside is provided with circuit board supporting seat 740, and this circuit board supporting seat 740 is located at connector outer conductor 720 tops, is used for support circuit plate 750, and in the present embodiment, circuit board 750 is provided with through hole.
In the present embodiment, signal transferring structure spare 730 has elasticity in whole or in part, spring function is used for the relative position error between the signal transfer point of erasure signal transferring structure spare 730 and circuit board 750, makes well to contact between the signal transfer point of signal transferring structure spare 730 and cavity body filter the external circuit board 750.
In sum, those skilled in the art understand easily, the cavity body filter that the embodiment of the invention provides has proposed improvement project at the connected mode of circuit board and connector inner wire, make circuit board and connector inner wire keep close-fitting by elastic force, not fragile circuit board, can effectively eliminate the relative position error between the signal transfer point of connector inner wire and circuit board, can guarantee well to contact between the signal transfer point of connector inner wire and cavity body filter the external circuit board.
What deserves to be mentioned is, more than among each embodiment, different architectural feature (for example above-mentioned multiple connected mode) can be used in combination mutually, is not limited to shown in each accompanying drawing.
It is pointed out that in the embodiment of the invention that connector outer conductor and cover plate/cavity can be split productions, again that outer conductor is fixing on the cover board, fixed form can be screwed, also can be that modes such as riveted joint, crimping, interference fit realize.Connector outer conductor and cover plate/cavity can also be one-body molded, as: the mode that adds by punching press, machine processes the connector outer conductor on cover plate or cavity, perhaps pass through cavity/cover plate and connector outer conductor one die cast.The processing mode and the version of concrete connector outer conductor can have multiple implementation, are not construed as limiting the invention.
Terms such as " first " mentioned in the embodiment of the invention one embodiment, " second " only are the letter symbols that adopts as required, are not limited to this in practice, and this Chinese character number can be exchanged use.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (20)
1. cavity body filter, comprise cavity, cover plate and be located at the interior connector inner wire of described cavity, described connector inner wire passes described cavity or described cover plate, be connected with the signal transfer point of described cavity body filter the external circuit board, it is characterized in that: described connector inner wire comprises elastic portion, the spring function of described elastic portion is used to eliminate the relative position error between the signal transfer point of described connector inner wire and described circuit board, makes well to contact between the signal transfer point of connector inner wire and described cavity body filter the external circuit board.
2. cavity body filter according to claim 1, it is characterized in that: described elastic portion is connected with the split of described connector inner wire, described elastic portion is an electrically conductive elastic spare, one end of described electrically conductive elastic spare connects the resonatron in cavity or the cavity, and the other end links to each other with described connector inner wire bottom.
3. cavity body filter according to claim 2 is characterized in that: the elongated shape of described electrically conductive elastic spare, stepped, S shape or Z-shaped shape.
4. cavity body filter according to claim 2 is characterized in that: the other end of described elastic component is connected by riveted joint, crimping, socket, welding or threaded connection mode with described connector inner wire.
5. cavity body filter according to claim 1, it is characterized in that: described elastic portion is a U type elastic component, the first side wall of described U type elastic component is connected with the signal transfer point of described circuit board, and second sidewall of described U type elastic component is connected with the top of described connector inner wire.
6. cavity body filter according to claim 1, it is characterized in that: described elastic portion is cup type elastic component, the bottom of described cup type elastic component is connected with the top of described connector inner wire, described cup type elastic component has makes the compressible flexible tip of cup-shaped elastic component axial dimension, and the signal transfer point of described flexible tip and circuit board keeps Elastic Contact.
7. cavity body filter according to claim 6 is characterized in that, described cup-shaped elastic component has radial slot along cup end face circumferencial direction.
8. according to claim 5,6 or 7 described cavity body filters, it is characterized in that: described elastic portion and described connector inner wire integrated molding.
9. cavity body filter according to claim 1, it is characterized in that: described circuit board is provided with through hole, described elastic portion is to be located at the radial elastic structure at described connector inner wire top, and described connector inner wire inserts described through hole and keeps well contacting by described radial elastic structure and described through hole.
10. cavity body filter according to claim 9 is characterized in that: described radial elastic structure is the top hollow structure with radial slot.
11. cavity body filter according to claim 10, it is characterized in that, described top hollow structure comprises at least two radial slots, the diameter of described top hollow structure is greater than the diameter of described through hole, described top hollow structure inserts described through hole, and hollow knot in described top has the elasticity close-fitting pressure that extends out and keeps well contacting with described through-hole wall.
12. according to any described cavity body filter in the claim 9 to 11, it is characterized in that: described through-hole wall is made metalized to carry out the signal transmission.
13., it is characterized in that: have additional metal ligand to carry out the signal transmission around the described through hole according to any described cavity body filter in the claim 9 to 11.
14. cavity body filter according to claim 9 is characterized in that: described radial elastic structural top further is provided with jut, and described jut well contacts with described circuit-board card button.
15. according to each described cavity body filter in claim 1 to 7 or 9 to 14, it is characterized in that: described cavity body filter also comprises:
The connector outer conductor, described connector outer conductor is connected with described cavity or described cover plate, and described connector inner wire is located in the described connector outer conductor; And
Insulator, described insulator are located between described connector outer conductor and the described connector inner wire.
16. communication equipment, it is characterized in that, described communication equipment comprises according to any described cavity body filter and signal processing unit in the claim 1 to 15, described signal processing unit comprises described circuit board, described cavity body filter is located at the signal circuit part of described communication equipment, is used for the frequency of signal is selected.
17. communication equipment according to claim 16 is characterized in that, described communication equipment also comprises:
Circuit board supporting seat, described circuit board supporting seat are located at described connector outer conductor top, are used to support described circuit board; And
The conduction insulation rubber, described conduction insulation rubber is located at described connector outer conductor and described circuit board supporting seat contact portion, is used to prevent leakage signal.
18. cavity body filter, comprise cavity, cover plate and be located at signal transferring structure spare in the described cavity, described signal transferring structure spare passes described cavity or described cover plate, be connected with the signal transfer point of described cavity body filter the external circuit board, it is characterized in that: described signal transferring structure spare has elasticity in whole or in part, described spring function is used to eliminate the relative position error between the signal transfer point of described signal transferring structure spare and described circuit board, makes well to contact between the signal transfer point of signal transferring structure spare and described cavity body filter the external circuit board.
19. cavity body filter according to claim 18 is characterized in that: described signal transferring structure spare is made metalized to guarantee the signal good communication with the contact portion of described circuit board.
20. cavity body filter according to claim 18 is characterized in that, described cavity body filter also comprises:
The connector outer conductor, described connector outer conductor is connected with described cavity or described cover plate, and described signal transferring structure spare is located in the described connector outer conductor; And
Insulator, described insulator are located between described connector outer conductor and the described signal transferring structure spare.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555668 CN102136616B (en) | 2010-11-23 | 2010-11-23 | Cavity filter and communication equipment |
| PCT/CN2010/079492 WO2012068746A1 (en) | 2010-11-23 | 2010-12-07 | Cavity filter and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555668 CN102136616B (en) | 2010-11-23 | 2010-11-23 | Cavity filter and communication equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102136616A true CN102136616A (en) | 2011-07-27 |
| CN102136616B CN102136616B (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010555668 Active CN102136616B (en) | 2010-11-23 | 2010-11-23 | Cavity filter and communication equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102136616B (en) |
| WO (1) | WO2012068746A1 (en) |
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| CN102496794A (en) * | 2011-11-16 | 2012-06-13 | 华为技术有限公司 | Blind placement connector, single board, related device and related system |
| CN103066350A (en) * | 2012-12-31 | 2013-04-24 | 深圳市大富科技股份有限公司 | Cavity filter and radio frequency device |
| WO2013135206A1 (en) * | 2012-03-16 | 2013-09-19 | 深圳市大富科技股份有限公司 | Cavity filter, power amplifier module, and signal transceiver device |
| WO2016106642A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市大富科技股份有限公司 | Cavity filter, connector, duplexer and remote radio device |
| CN112928909A (en) * | 2019-12-06 | 2021-06-08 | 重庆大及电子科技有限公司 | EMI filtering device |
| CN113646966A (en) * | 2018-10-15 | 2021-11-12 | 株式会社Kmw | Cavity filter |
| EP3809522A4 (en) * | 2018-06-12 | 2022-03-16 | KMW Inc. | Cavity filter and connecting structure included therein |
| EP3809519A4 (en) * | 2018-06-12 | 2022-06-22 | KMW Inc. | Cavity filter and connecting structure included therein |
| CN115458885A (en) * | 2022-10-25 | 2022-12-09 | 四川恒湾科技有限公司 | Radio frequency device |
| CN115864078A (en) * | 2023-03-03 | 2023-03-28 | 深圳国人无线通信有限公司 | Connector, microwave input and output structure, cavity filter and microwave equipment |
| JP7459197B2 (en) | 2018-06-12 | 2024-04-01 | ケーエムダブリュ・インコーポレーテッド | cavity filter |
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| CN102496794A (en) * | 2011-11-16 | 2012-06-13 | 华为技术有限公司 | Blind placement connector, single board, related device and related system |
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| WO2016106642A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市大富科技股份有限公司 | Cavity filter, connector, duplexer and remote radio device |
| EP3809522A4 (en) * | 2018-06-12 | 2022-03-16 | KMW Inc. | Cavity filter and connecting structure included therein |
| EP3809519A4 (en) * | 2018-06-12 | 2022-06-22 | KMW Inc. | Cavity filter and connecting structure included therein |
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| US11967749B2 (en) | 2018-06-12 | 2024-04-23 | Kmw Inc. | Cavity filter and connecting structure included therein |
| CN113646966A (en) * | 2018-10-15 | 2021-11-12 | 株式会社Kmw | Cavity filter |
| US11522260B2 (en) | 2018-10-15 | 2022-12-06 | Kmw Inc. | Cavity filter |
| CN112928909A (en) * | 2019-12-06 | 2021-06-08 | 重庆大及电子科技有限公司 | EMI filtering device |
| CN112928909B (en) * | 2019-12-06 | 2023-03-07 | 重庆大及电子科技有限公司 | EMI filtering device |
| CN115458885A (en) * | 2022-10-25 | 2022-12-09 | 四川恒湾科技有限公司 | Radio frequency device |
| CN115864078A (en) * | 2023-03-03 | 2023-03-28 | 深圳国人无线通信有限公司 | Connector, microwave input and output structure, cavity filter and microwave equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012068746A1 (en) | 2012-05-31 |
| CN102136616B (en) | 2013-09-04 |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518108 Guangdong city of Shenzhen province Baoan District alqun Shiyan road with rich industrial area 1-2 building Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |