CN203277607U - Coupling device, cavity filter and communication radio frequency device - Google Patents
Coupling device, cavity filter and communication radio frequency device Download PDFInfo
- Publication number
- CN203277607U CN203277607U CN 201320230575 CN201320230575U CN203277607U CN 203277607 U CN203277607 U CN 203277607U CN 201320230575 CN201320230575 CN 201320230575 CN 201320230575 U CN201320230575 U CN 201320230575U CN 203277607 U CN203277607 U CN 203277607U
- Authority
- CN
- China
- Prior art keywords
- coupling
- outer conductor
- hole
- circuit board
- inner wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model discloses a coupling device, a cavity filter and a communication radio frequency device. The coupling device comprises a signal transmission main rod and a coupling body for collecting signals of the signal transmission main rod, and the coupling body is connected with a printed circuit board in parallel with the signal transmission main body. The coupling device is characterized by comprising an outer coupling conductor connected to the printed circuit board and an inner coupling conductor arranged in the outer coupling conductor, wherein one end of the inner coupling conductor is arranged in a through hole of a printed circuit board, the inner coupling conductor comprises a screw thread part and is screwed with the outer coupling conductor by the screw thread part, an elastic fixation block is arranged between the outer coupling conductor and the inner coupling conductor, and the inner coupling conductor is fixed in a through hole of the outer coupling conductor through interference fit with the elastic fixation block. The coupling device is conveniently mounted, and simultaneously has the position limiting and self-locking functions without causing short circuit, with high safety.
Description
Technical field
The utility model relates to a kind of coupling device, cavity body filter and communication radio frequency equipment.
Background technology
Cavity body filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, cavity body filter is used for selecting signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.In cavity body filter, often need one road microwave power is divided into several roads in proportion, realize that the module of this function is called power division module, i.e. coupling module.
Coupling module is a kind of four port modules with directional transmissions characteristic, it carries out power division with microwave signal according to certain ratio, can be used for isolation, separation and the mixing of signal, carry out the power signal sampling, with monitoring, source power output fixed ampllitude, signal source isolation, the transmission that acts on power and the sweep check of reflecting etc.The effect of regulator for coupling in the microwave system cavity body filter is namely the regulative mode of a kind of amount when power signal is taken a sample.
Existing coupling device finds to have following problem in practical application:
One, governor motion non-integral parts, because these component size are very little, in adjustor's assembling process, the element that is easy to come off is fallen in cavity, causes the inconvenience of waste of time and production;
Two, infinite place function, when the debugging element enters a lot, and signal transmit body from very close to, may cause short circuit.
Three, without auto-lock function, existing coupling device need to be put glue and fix, and there is certain potential safety hazard in glue in high chilling process.
The utility model content
The utility model provides a kind of coupling device, cavity body filter and communication radio frequency equipment, and it can make coupling device easy for installation, has simultaneously spacing and auto-lock function, can not cause short circuit, and is safe.
the utility model provides a kind of coupling device, comprise the signal transmission main, and the coupling body that the signal of signal transmission main is gathered, described coupling body is connected on the printed circuit board (PCB) that be arranged in parallel with the signal transmission main, it is characterized in that, described coupling body comprises the coupling outer conductor that is connected on printed circuit board (PCB), and be located in the coupling outer conductor and have an end to be positioned at the coupling inner wire of printed circuit board through-hole, described coupling inner wire comprises the threaded portion, described coupling inner wire screws togather by described threaded portion and described coupling outer conductor screw thread, be provided with the flexible fastening piece between described coupling outer conductor and described coupling inner wire, described coupling inner wire is by being fixed in the through hole of described coupling outer conductor with described flexible fastening piece interference fit.
Described coupling inner wire is arranged near the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged on away from the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
described coupling outer conductor is provided with a through hole, the end that the middle part of described through hole has screw thread and a described through hole is provided with the heavy stand hole, described flexible fastening piece is limited in the heavy stand hole of described coupling outer conductor, and described fixed block comprise one with the centre bore of the coaxial setting of through hole of described coupling outer conductor, described coupling inner wire comprises the coupling part that is connected with the threaded portion, screw thread in described threaded portion and described coupling outer conductor through hole screws togather and is limited in described through hole by described flexible fastening piece, described coupling part partly passes the perforation of the centre bore of described fixed block and described circuit board and is revealed in outside described circuit board, and the centre bore interference fit of described coupling part and described flexible fastening piece.
The aperture of the centre bore of described flexible fastening piece is less than the aperture of the threaded part of tool in described coupling outer conductor through hole.
Described coupling inner wire is shaft-like, and the diameter of described threaded portion is greater than the diameter of described coupling part.
Through hole in described coupling outer conductor comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, described flexible fastening piece is placed in described the first sector hole, described coupling inner wire and described flexible fastening piece interference fit, and with described the second sector hole threaded engagement, the aperture of described the first sector hole is greater than the aperture of described the second sector hole.
Coupling inner wire in described flexible fastening piece comprises from the stepped minor diameter part that increases progressively of external diameter and large-diameter portion near the free end of printed circuit board (PCB), described large-diameter portion and described flexible fastening piece interference fit, described minor diameter part coordinates with described flexible fastening block gap.
Through hole in described flexible fastening piece comprises from stepped the 3rd sector hole that successively decreases of internal diameter and the 4th sector hole near the printed circuit board (PCB) end, described coupling inner wire and described the 3rd sector hole matched in clearance, and with the 4th sector hole interference fit.
Described coupling inner wire is arranged on away from the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged near the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
Through hole in described coupling outer conductor comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, described flexible fastening piece is arranged in described the second sector hole, described coupling inner wire and described flexible fastening piece threaded engagement, and with the second sector hole interference fit, the aperture of described the first sector hole is less than the aperture of described the second sector hole.
Described coupling inner wire and described coupling outer conductor be whole threaded engagement in the first sector hole of coupling outer conductor.
Described coupling inner wire and described coupling outer conductor are in the inner minute threaded engagement of the first sector hole of coupling outer conductor, and and then the mating part of printed circuit board (PCB) is matched in clearance.
The port away from printed circuit board (PCB) of described coupling outer conductor is socketed with the fixedly Coupling of flexible fastening piece.
The outer surface of described coupling outer conductor is provided with the flange for clamping.
The utility model also provides a kind of cavity body filter, comprises the signal transmission main in cavity, cavity, and is located at the above-mentioned coupling device on printed circuit board (PCB).
The utility model also provides a kind of communication radio frequency equipment, and it comprises signal transmission body, circuit board and above-mentioned coupling device, and described coupling device is arranged on circuit board, is used for described coupled signal is transmitted the signal coupling of body to described circuit board.
the coupling device that the utility model provides, cavity body filter and communication radio frequency equipment, adopt the coupling outer conductor be threaded and utilize the flexible fastening piece to realize interference fit with the coupling inner wire, compared with prior art, the utility model is when assembling, the through hole that the coupling inner wire is screwed in the coupling outer conductor is inner, then the flexible fastening piece is set in outside the coupling inner wire, be provided with the flexible fastening piece in the through hole of coupling outer conductor, thereby the threaded portion of coupling inner wire is limited in the through hole of this coupling outer conductor, make the coupling outer conductor, coupling inner wire and flexible fastening piece form overall structure, the coupling inner wire can not fallen in communication radio frequency equipment, install more convenient, simultaneously due to the setting of flexible fastening piece, the threaded portion of coupling inner wire is limited in being coupled in outer conductor, makes coupling device have limit function, and the coupling inner wire can not transmit the body short circuit with signal, flexible fastening piece and coupling inner wire interference fit have been realized the auto-lock function of coupling device, have avoided the fixing method of available technology adopting point glue, the fail safe raising.Whereby, the utility model can make coupling device easy for installation, has simultaneously spacing and auto-lock function, can not cause short circuit, and is safe.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model embodiment one communication radio frequency apparatus structure cutaway view;
Fig. 2 is the zoomed-in view of part-structure in Fig. 1;
Fig. 3 is the cross-sectional view of 21 kinds of coupling bodies of the utility model embodiment;
Fig. 4 is the cross-sectional view of the another kind of execution mode of 21 kinds of coupling bodies of the utility model embodiment;
Fig. 5 is the cross-sectional view of 31 kinds of coupling bodies of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
the utility model provides a kind of coupling device, comprise the signal transmission main, and the coupling body that the signal of signal transmission main is gathered, described coupling body is connected on the printed circuit board (PCB) that be arranged in parallel with the signal transmission main, described coupling body comprises the coupling outer conductor that is connected on printed circuit board (PCB), and be located in the coupling outer conductor and have an end to be positioned at the coupling inner wire of printed circuit board through-hole, described coupling inner wire comprises the threaded portion, described coupling inner wire screws togather by described threaded portion and described coupling outer conductor screw thread, be provided with the flexible fastening piece between described coupling outer conductor and described coupling inner wire, described coupling inner wire is by being fixed in the through hole of described coupling outer conductor with described flexible fastening piece interference fit.
Embodiment one, as shown in Figure 1, the utility model provides a kind of communication radio frequency device, it can be cavity body filter, single multiplexer, duplexer, multiplexer, mixer or splitter, the communication radio frequency device comprises signal transmission body 10, circuit board 20 and coupling device 30, coupling device 30 is arranged on circuit board 20, the signal coupling that is used for coupled signal is transmitted body 10 is to circuit board 20, and coupling device 30 comprises:
Coupling outer conductor 31, be provided with a through hole, the end that the middle part of through hole has screw thread and a through hole is provided with the heavy stand hole, and the other end of through hole does not arrange screw thread, the end that coupling outer conductor 31 has the heavy stand hole is connected with circuit board 20, and the corresponding through hole of circuit board 20 is provided with perforation.
Coupling inner wire 33, comprise and interconnect threaded portion 331 and coupling part 332, threaded portion 331 screws togather and is limited in through hole by flexible fastening piece 32 with the interior screw thread of outer conductor 31 through holes that is coupled, coupling part 332 parts are passed the perforation of the centre bore of fixed block 32 and circuit board 20 and are revealed in outside circuit board 20, and the centre bore interference fit of coupling part 332 and flexible fastening piece 32.
Preferably, coupling inner wire 33 is shaft-like, and the diameter of threaded portion 331 is greater than the diameter of coupling part 332.The aperture of the centre bore of flexible fastening piece 32 is less than the aperture of the threaded part of tool in coupling outer conductor 31 through holes.Thereby avoid in the rotary course of coupling inner wire 33, the coupling part 332 of coupling inner wire 33 comes in contact with the through hole of coupling outer conductor 31 or the centre bore of flexible fastening piece 32, to such an extent as to the rotation friction of the inner wire 33 that causes being coupled can't rotate too greatly.The aperture of the centre bore of flexible fastening piece 32 less than the purpose in the aperture of the threaded part of tool in coupling outer conductor 31 through holes is, the threaded portion 331 of coupling inner wire 33 carried out spacing, prevents that threaded portion 331 from screwing out coupling outer conductors 31; Certainly exist, in other execution modes, also can equal the to be coupled aperture of the threaded part of tool in outer conductor 31 through holes, the aperture of the centre bore of flexible fastening piece 32, because the centre bore of flexible fastening piece 32 is not established screw thread, so the threaded portion 331 of coupling outer conductor 31 can't screw out the centre bore of flexible fastening piece 32 equally.
Preferably, the top of the threaded portion 331 of coupling inner wire 33 is provided with the screwdriver accommodating groove for this coupling inner wire 33 of rotation, and the screwdriver accommodating groove is flat recess or cross recess.
When coupling device 30 device is to the circuit board 20 of communication radio frequency equipment, the end that the inner wire 33 that at first will be coupled has a heavy stand hole from coupling outer conductor 31 screws in the through hole inside of coupling outer conductor 31; Then flexible fastening piece 32 is set in outside coupling inner wire 33; And flexible fastening piece 32 is limited in the heavy stand hole of coupling outer conductor 31, and because coupling outer conductor 31 only is provided with screw thread in the through hole middle part, through hole one end is not established screw thread, the other end is provided with flexible fastening piece 32, the threaded portion 331 of coupling inner wire 33 can not screw out coupling outer conductor 31, thereby the threaded portion 331 of coupling inner wire 33 is limited in the through hole of this coupling outer conductor 31, makes coupling outer conductor 31, coupling inner wire 33 and flexible fastening piece 32 form overall structure; At last the coupling outer conductor 31 of coupling device 30 is soldered on circuit board 20 and gets final product.Thereby, in the installation process of coupling device 30, can not cause element to fall into communication radio frequency equipment, install more convenient.
When coupling device 30 needs to regulate the coupling amount, can get final product by the be coupled coupling part 332 of inner wire 33 and the spacing that signal transmits between body 10 of adjusting.Concrete, be to change coupling inner wire 33 with respect to the height of coupling outer conductor 11.With reference to Fig. 2, when the 33 downward turn of coupling inner wire, can make the coupling part 332 of coupling inner wire 33 and the Distance Shortened between signal transmission body 10, thereby increase the coupling amount, simultaneously due to the coupling part 332 of coupling inner wire 33 and the centre bore interference fit of flexible fastening piece 32, when coupling inner wire 33 screws in downwards, just produce certain frictional force, thereby the formation auto-lock function, the inner wire of guaranteeing to be coupled after debugging is got well can not shake and withdraw from, and has realized auto-lock function; And when the threaded portion 331 of coupling inner wire 33 rotates to the position of flexible fastening piece 32, can not continue to rotate, avoid coupling part 332 and the signal of coupling inner wire 33 to transmit contact short circuit between body 10.When coupling inner wire 33 makes progress turn, the coupling part 332 of coupling inner wire 33 and the distance between signal transmission body 10 are increased, thereby reduce the coupling amount, and because the through hole top of coupling outer conductor 31 does not have screw thread, therefore the inner wire 33 that is coupled also can't screw out the coupling outer conductor from the through hole top, realized limit function.
Accordingly, the utility model also provides a kind of coupling device, coupling device is arranged on circuit board, be used for coupled signal is transmitted the signal coupling of body to described circuit board, described coupling device comprises: the coupling outer conductor, be provided with a through hole, and the end that the middle part of described through hole has screw thread and a described through hole is provided with the heavy stand hole, the end that described coupling outer conductor has described heavy stand hole is connected with described circuit board, and the corresponding described through hole of described circuit board is provided with perforation; The flexible fastening piece is limited in the heavy stand hole of described coupling outer conductor, and described fixed block comprise one with the centre bore of the coaxial setting of through hole of described coupling outer conductor; The coupling inner wire, comprise and interconnect threaded portion and coupling part, screw thread in described threaded portion and described coupling outer conductor through hole screws togather and is limited in described through hole by described flexible fastening piece, described coupling part partly passes the perforation of the centre bore of described fixed block and described circuit board and is revealed in outside described circuit board, and the centre bore interference fit of described coupling part and described flexible fastening piece.The concrete structure of coupling device is described in detail at preamble, therefore do not repeat them here.
in sum, compared with prior art, the utility model is when assembling, it is inner that the end that the coupling inner wire is had a heavy stand hole from the coupling outer conductor screws in the through hole of coupling outer conductor, then the flexible fastening piece is set in outside coupling conductors, and the flexible fastening piece is limited in the heavy stand hole of coupling outer conductor, and because the coupling outer conductor only is provided with screw thread in the through hole middle part, through hole one end is not established screw thread, the other end is provided with the flexible fastening piece, the threaded portion of coupling inner wire can not screw out the coupling outer conductor, thereby the threaded portion of coupling inner wire is limited in the through hole of this coupling outer conductor, make the coupling outer conductor, coupling inner wire and flexible fastening piece form overall structure, when coupling device is installed, the coupling inner wire can not fallen in communication radio frequency equipment, install more convenient, simultaneously due to the setting of flexible fastening piece, the threaded portion of coupling inner wire is limited in being coupled in outer conductor, makes coupling device have limit function, and the coupling inner wire can not transmit the body short circuit with signal, the coupling part interference fit of flexible fastening piece and coupling inner wire has realized the auto-lock function of coupling device, has avoided the fixing method of available technology adopting point glue, the fail safe raising.Whereby, the utility model can make coupling device easy for installation, has simultaneously spacing and auto-lock function, can not cause short circuit, and is safe.
Embodiment two,
In the present embodiment, the coupling inner wire is arranged near the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged on away from the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
Concrete, through hole in the coupling outer conductor comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, the flexible fastening piece is placed in the first sector hole, coupling inner wire and flexible fastening piece interference fit, and with the second sector hole threaded engagement, the aperture of the first sector hole is greater than the aperture of the second sector hole.
With reference to figure 3, coupling body 40 comprises coupling outer conductor 41, coupling inner wire 43 and flexible fastening piece 42, coupling inner wire in flexible fastening piece 42 comprises from the stepped minor diameter part that increases progressively 433 of external diameter and large-diameter portion 432 near the free end of printed circuit board (PCB), one section and flexible fastening piece 42 interference fit of large-diameter portion 432, minor diameter part 433 and flexible fastening piece 42 matched in clearance.Coupling inner wire 43 also comprises the threaded portion 431 with coupling outer conductor the second sector hole threaded engagement.
the present embodiment is the improvement on embodiment one basis, because the flexible fastening piece in embodiment one is all interference fit with the coupling inner wire, when coupling outer conductor and printed circuit board (PCB) welding, scolding tin may flow to the coupling inner wire outer surface on the time, the external diameter of coupling inner wire is increased, in the rotary course of coupling inner wire, may screw in this part in the interference hole of flexible fastening piece with the coupling inner wire of scolding tin, can be large interference hole support, the interference fit function of fixed block will reduce or follow the string, make the fixed relationship between inner wire and flexible fastening piece not firm.the defective that exists when welding in order to solve, the present embodiment is arranged to large-diameter portion and minor diameter part with inner wire, one section of large-diameter portion is arranged in the flexible fastening piece, coupling inner wire and flexible fastening piece interference fit have been guaranteed, setting by minor diameter part makes the gap that forms a determining deviation between minor diameter part and flexible fastening piece, when welding, even scolding tin can enter the gap between minor diameter part and flexible fastening piece, the hole of flexible fastening piece can not enlarged when regulating inner wire yet, can avoid flowing on coupling inner wire outer surface destruction to flexible fastening piece interference hole at scolding tin.
flow to the defective of when debugging, flexible fastening piece interference hole generation being destroyed on inner wire for fear of scolding tin, the applicant proposes another kind of execution mode simultaneously with reference to figure 4, Fig. 4 is the generalized section of coupling body 50, coupling body 50 comprises coupling outer conductor 51, coupling inner wire 53 and flexible fastening piece 52, through hole in flexible fastening piece 52 comprises from stepped the 3rd sector hole 522 that successively decreases of internal diameter and the 4th sector hole 521 near the printed circuit board (PCB) end, coupling inner wire 53 comprises threaded portion 531 and the polished rod 532 with coupling outer conductor threaded engagement, the close printed circuit plate portion of polished rod 532 and the 3rd sector hole 522 matched in clearance, and with the 4th sector hole 521 interference fit.In this execution mode, the coupling inner wire does not change at the diameter of interference fit section, and the through hole of flexible fastening piece is arranged to the shoulder hole that internal diameter varies in size, thereby can avoid scolding tin to the destruction of interference fit between coupling inner wire and flexible fastening piece yet.
In all execution modes of the present embodiment, coupling inner wire and the inner minute threaded engagement of second sector hole of coupling outer conductor in the coupling outer conductor, part matched in clearance.
The outer surface of described coupling outer conductor is provided with the flange for clamping.
Described coupling inner wire is provided with counterbore away from the free end of printed circuit board (PCB), and described counterbore shape is interior six flowers, flat recess, cross recess.
Described coupling outer conductor is welded on described printed circuit board (PCB).
Embodiment three,
In the present embodiment, the coupling inner wire is arranged on away from the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged near the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
Concrete, with reference to figure 5, Fig. 5 is the generalized section of coupling body 60, through hole in coupling outer conductor 61 comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, flexible fastening piece 62 is arranged in the second sector hole, the first sector hole threaded engagement of 632 and coupling outer conductor 61 of the close printed circuit board (PCB) end of coupling inner wire 63, and by 631 be arranged on flexible fastening piece 62 interference fit in the second sector hole, the aperture of the first sector hole is less than the aperture of the second sector hole.Flexible fastening piece 62 is with the coupling outer conductor 61 second coaxial settings of sector hole and in the second sector hole with height, in order to prevent flexible fastening piece play when debugging, at the port socket Coupling 64 away from printed circuit board (PCB) of coupling outer conductor 61.
As a kind of execution mode, equally with reference to figure 5, coupling inner wire and coupling outer conductor whole threaded engagement in coupling outer conductor the first sector hole.The coupling inner wire with the coupling outer conductor the coupling outer conductor the second sector hole in flexible fastening piece part interference fit, part matched in clearance.
As another kind of execution mode, the coupling inner wire with the coupling outer conductor in inner minute threaded engagement of coupling outer conductor the first sector hole, the part matched in clearance, and then the mating part of printed circuit board (PCB) can be matched in clearance.The whole interference fit of flexible fastening piece in coupling outer conductor the second sector hole in coupling inner wire and coupling outer conductor.
The coupling outer conductor of all execution modes and the fit system of the coupling inner wire outer conductor scolding tin destruction to the flexible fastening piece when being welded on printed circuit board (PCB) of all can avoiding being coupled in the present embodiment.
The outer surface of described coupling outer conductor is provided with the flange for clamping.
Described coupling inner wire is provided with counterbore away from the free end of printed circuit board (PCB), and described counterbore shape is interior six flowers, flat recess, cross recess.
Described coupling outer conductor is welded on described printed circuit board (PCB).
The utility model also provides a kind of cavity body filter, comprises the signal transmission main in cavity, cavity, and is located at the coupling device as shown in above-mentioned embodiment on printed circuit board (PCB).
The utility model also provides a kind of communication radio frequency equipment, it comprises signal transmission body, circuit board and coupling device as described in above-mentioned embodiment, described coupling device is arranged on circuit board, is used for described coupled signal is transmitted the signal coupling of body to described circuit board.
The above coupling device that the utility model embodiment is provided is described in detail, wherein:
the coupling device that the utility model provides, adopt the coupling outer conductor be threaded and utilize the flexible fastening piece to realize interference fit with the coupling inner wire, compared with prior art, the utility model is when assembling, the through hole that the coupling inner wire is screwed in the coupling outer conductor is inner, then the flexible fastening piece is set in outside the coupling inner wire, be provided with the flexible fastening piece in the through hole of coupling outer conductor, thereby the threaded portion of coupling inner wire is limited in the through hole of this coupling outer conductor, make the coupling outer conductor, coupling inner wire and flexible fastening piece form overall structure, the coupling inner wire can not fallen in communication radio frequency equipment, install more convenient, simultaneously due to the setting of flexible fastening piece, the threaded portion of coupling inner wire is limited in being coupled in outer conductor, makes coupling device have limit function, and the coupling inner wire can not transmit the body short circuit with signal, flexible fastening piece and coupling inner wire interference fit have been realized the auto-lock function of coupling device, have avoided the fixing method of available technology adopting point glue, the fail safe raising.Whereby, the utility model can make coupling device easy for installation, has simultaneously spacing and auto-lock function, can not cause short circuit, and is safe.
Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (16)
1. coupling device, comprise the signal transmission main, and the coupling body that the signal of signal transmission main is gathered, described coupling body is connected on the printed circuit board (PCB) that be arranged in parallel with the signal transmission main, it is characterized in that, described coupling body comprises the coupling outer conductor that is connected on printed circuit board (PCB), and be located in the coupling outer conductor and have an end to be positioned at the coupling inner wire of printed circuit board through-hole, described coupling inner wire comprises the threaded portion, described coupling inner wire screws togather by described threaded portion and described coupling outer conductor screw thread, be provided with the flexible fastening piece between described coupling outer conductor and described coupling inner wire, described coupling inner wire is by being fixed in the through hole of described coupling outer conductor with described flexible fastening piece interference fit.
2. coupling device according to claim 1, it is characterized in that, described coupling inner wire is arranged near the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged on away from the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
3. coupling device according to claim 2, it is characterized in that, described coupling outer conductor is provided with a through hole, the end that the middle part of described through hole has screw thread and a described through hole is provided with the heavy stand hole, described flexible fastening piece is limited in the heavy stand hole of described coupling outer conductor, and described fixed block comprise one with the centre bore of the coaxial setting of through hole of described coupling outer conductor, described coupling inner wire comprises the coupling part that is connected with the threaded portion, screw thread in described threaded portion and described coupling outer conductor through hole screws togather and is limited in described through hole by described flexible fastening piece, described coupling part partly passes the perforation of the centre bore of described fixed block and described circuit board and is revealed in outside described circuit board, and the centre bore interference fit of described coupling part and described flexible fastening piece.
4. coupling device according to claim 3, is characterized in that, the aperture of the centre bore of described flexible fastening piece is less than the aperture of the threaded part of tool in described coupling outer conductor through hole.
5. coupling device according to claim 3, is characterized in that, described coupling inner wire is shaft-like, and the diameter of described threaded portion is greater than the diameter of described coupling part.
6. coupling device according to claim 2, it is characterized in that, through hole in described coupling outer conductor comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, described flexible fastening piece is placed in described the first sector hole, described coupling inner wire and described flexible fastening piece interference fit, and with described the second sector hole threaded engagement, the aperture of described the first sector hole is greater than the aperture of described the second sector hole.
7. coupling device according to claim 6, it is characterized in that, coupling inner wire in described flexible fastening piece comprises from the stepped minor diameter part that increases progressively of external diameter and large-diameter portion near the free end of printed circuit board (PCB), described large-diameter portion and described flexible fastening piece interference fit, described minor diameter part coordinates with described flexible fastening block gap.
8. described coupling device according to claim 6, it is characterized in that, through hole in described flexible fastening piece comprises from stepped the 3rd sector hole that successively decreases of internal diameter and the 4th sector hole near the printed circuit board (PCB) end, described coupling inner wire and described the 3rd sector hole matched in clearance, and with the 4th sector hole interference fit.
9. coupling device according to claim 1, it is characterized in that, described coupling inner wire is arranged on away from the printed circuit board (PCB) end with the interior flexible fastening piece interference fit of outer conductor that is coupled, and described coupling inner wire is arranged near the printed circuit board (PCB) end with coupling outer conductor threaded engagement.
10. coupling device according to claim 9, it is characterized in that, through hole in described coupling outer conductor comprises that the first sector hole of close printed circuit board (PCB) end reaches the second sector hole away from the printed circuit board (PCB) end, described flexible fastening piece is arranged in described the second sector hole, described coupling inner wire and described flexible fastening piece threaded engagement, and with the second sector hole interference fit, the aperture of described the first sector hole is less than the aperture of described the second sector hole.
11. coupling device according to claim 10 is characterized in that, described coupling inner wire and described coupling outer conductor be whole threaded engagement in the first sector hole of coupling outer conductor.
12. coupling device according to claim 10 is characterized in that, described coupling inner wire and described coupling outer conductor are in the inner minute threaded engagement of the first sector hole of coupling outer conductor, and and then the mating part of printed circuit board (PCB) is matched in clearance.
13. coupling device according to claim 10 is characterized in that, the port away from printed circuit board (PCB) of described coupling outer conductor is socketed with the fixedly Coupling of flexible fastening piece.
14. according to claim 1～13 described coupling devices of any one is characterized in that the outer surface of described coupling outer conductor is provided with the flange for clamping.
15. a cavity body filter is characterized in that, comprises the signal transmission main in cavity, cavity, and is located at the coupling device as described in claim 1～14 any one on printed circuit board (PCB).
16. communication radio frequency equipment, it comprises signal transmission body, circuit board and coupling device as described in claim 1～14 any one, described coupling device is arranged on circuit board, is used for described coupled signal is transmitted the signal coupling of body to described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320230575 CN203277607U (en) | 2013-01-21 | 2013-04-28 | Coupling device, cavity filter and communication radio frequency device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320030752.3 | 2013-01-21 | ||
| CN201320030752 | 2013-01-21 | ||
| CN 201320230575 CN203277607U (en) | 2013-01-21 | 2013-04-28 | Coupling device, cavity filter and communication radio frequency device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203277607U true CN203277607U (en) | 2013-11-06 |
Family
ID=48817172
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155577.5A Active CN103219573B (en) | 2013-01-21 | 2013-04-28 | Coupling device, cavity body filter and communication radio frequency equipment |
| CN 201320230575 Withdrawn - After Issue CN203277607U (en) | 2013-01-21 | 2013-04-28 | Coupling device, cavity filter and communication radio frequency device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155577.5A Active CN103219573B (en) | 2013-01-21 | 2013-04-28 | Coupling device, cavity body filter and communication radio frequency equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103219573B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219573A (en) * | 2013-01-21 | 2013-07-24 | 深圳市大富科技股份有限公司 | Coupling device, cavity filter and communication radio frequency equipment |
| CN105896205A (en) * | 2016-06-06 | 2016-08-24 | 江苏吴通连接器有限公司 | Highly-coupled and strength-adjustable radio frequency coaxial connector |
| CN107615573A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | Cavity body filter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491656B (en) * | 2013-08-20 | 2017-06-06 | 华为技术有限公司 | Base station and its duplexer |
| CN107112617B (en) * | 2014-12-24 | 2020-03-31 | 深圳市大富科技股份有限公司 | Tower top amplifier, signal receiving and transmitting device, cavity filter and directional coupling structure |
| CN107112615B (en) * | 2014-12-31 | 2019-11-26 | 深圳市大富科技股份有限公司 | Cavity body filter, duplexer, signal receiving/transmission device, radio frequency remote equipment and tower amplifier |
| CN106356658B (en) * | 2016-11-14 | 2019-01-11 | 上海航天科工电器研究院有限公司 | It is a kind of for penetrating the RF transmitting structures of pcb board |
| CN112864554B (en) * | 2020-12-31 | 2022-03-22 | 京信通信技术(广州)有限公司 | Filtering combining structure and combining phase shifter |
| CN114792873B (en) * | 2022-04-11 | 2023-11-28 | 陕西索飞电子科技有限公司 | Resonator, frequency selection method, filter and filter combination |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202178373U (en) * | 2011-08-08 | 2012-03-28 | 深圳市大富科技股份有限公司 | Radio frequency communication device, coupling module and coupling adjustment mechanism thereof |
| CN202534768U (en) * | 2012-04-28 | 2012-11-14 | 成都泰格微波技术股份有限公司 | Coupler with high coupling degree adjustment convenience |
| CN103219573B (en) * | 2013-01-21 | 2019-03-01 | 深圳市大富科技股份有限公司 | Coupling device, cavity body filter and communication radio frequency equipment |
-
2013
- 2013-04-28 CN CN201310155577.5A patent/CN103219573B/en active Active
- 2013-04-28 CN CN 201320230575 patent/CN203277607U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219573A (en) * | 2013-01-21 | 2013-07-24 | 深圳市大富科技股份有限公司 | Coupling device, cavity filter and communication radio frequency equipment |
| CN103219573B (en) * | 2013-01-21 | 2019-03-01 | 深圳市大富科技股份有限公司 | Coupling device, cavity body filter and communication radio frequency equipment |
| CN107615573A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | Cavity body filter |
| CN105896205A (en) * | 2016-06-06 | 2016-08-24 | 江苏吴通连接器有限公司 | Highly-coupled and strength-adjustable radio frequency coaxial connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103219573A (en) | 2013-07-24 |
| CN103219573B (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203277607U (en) | Coupling device, cavity filter and communication radio frequency device | |
| WO2007005617A3 (en) | Electrically conducting polymer glue, devices made therewith and methods of manufacture | |
| ATE374371T1 (en) | DEVICE FOR TESTING A DEVICE USING A HIGH FREQUENCY SIGNAL | |
| CN102790331B (en) | DIN adapter connector standard element used for passive inter-modulation test | |
| CN203734916U (en) | Surface-mounted SMA connector wiring base on control edge | |
| CN204315699U (en) | The directional coupler that the degree of coupling is adjustable | |
| CN202434175U (en) | Improved universal test adapter plate for liquid crystal display | |
| CN201732876U (en) | Connecting terminal block | |
| CN201699112U (en) | Coaxial power coupler | |
| CN101834333A (en) | Coaxial power coupler | |
| CN203737490U (en) | Micro-hole atomizer control circuit | |
| CN103207501A (en) | New type field-assembly achievable configurable multi-parameter camera module and device | |
| CN201039101Y (en) | Power modulation filter frequency calibration device | |
| CN203039072U (en) | Coupling device | |
| CN202534768U (en) | Coupler with high coupling degree adjustment convenience | |
| CN204375879U (en) | A kind of can the phase shifter of fine adjustment phase place online | |
| CN203039070U (en) | Coupling adjusting device and radio frequency communication device | |
| CN208986230U (en) | A kind of quick plugging/unplugging device for semiconductor test | |
| CN219286639U (en) | A quick clamping device for communication antenna adjustable size | |
| CN208508039U (en) | One kind exempting from wire stripping electric connector | |
| CN103344800B (en) | Program-control electronic load for relay protection | |
| CN202178353U (en) | Radio frequency communication equipment | |
| CN201368105Y (en) | External thread connecting piece and external thread connecting valve with rotating and positioning function | |
| CN205883800U (en) | Electronic function modules with erection column | |
| CN214040469U (en) | Water pressure sensor for water supply and supplement of water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20190301 |