CN201060917Y

CN201060917Y - Foundry molding duplexer

Info

Publication number: CN201060917Y
Application number: CNU2007201519459U
Authority: CN
Inventors: 杨建慧; 陈明辉; 王军胜
Original assignee: BEIJING SKYWAY TECHNOLOGIES Co Ltd
Current assignee: BEIJING SKYWAY TECHNOLOGIES Co Ltd
Priority date: 2007-06-18
Filing date: 2007-06-18
Publication date: 2008-05-14
Anticipated expiration: 2017-06-18

Abstract

The utility model relates to a die-cast diplexer, comprising an upper A body (1), a lower B body (2), a tightening screw (3) and a tuning screw (4), wherein, the upper A body (1) is connected with the lower B body (2) via the tightening screw (3) to form the diplexer with a transceiving end (21) and a common end (22). The utility model adopts aluminum alloy for liquefaction casting, the upper A body (1) and the lower B body (2) are totally symmetric relative to a central symmetry plane, and a plurality of resonant cavities are formed inside the diplexer by a partition board (12) and a cavity board (13). The utility model has the advantages of better performance compared with product adopting other manufacture technology, superiority on productivity, product uniformity, processing cost, application effect, maintenance and repair due to die-casting process, and wide application range in communication, electronics and other fields.

Description

The casting duplexer

Technical field

The utility model relates to a kind of duplexer, the diplexer structure that especially adopts CAD, CAM technology and make in conjunction with the conventional metals casting technique.

Background technology

Traditional duplexer adopts symmetrical structure, the method for designing of T type branch; Its method of manufacturing technology is for selecting diaphragm coupling, cylinder coupling for use in manufacture process, diaphragm coupling is to open slit greater than diaphragm size at the standard waveguide tube wall, and then uses the method for welding to be linked together after diaphragm put into the slit according to the designing requirement size.A duplexer often needs more than 10 diaphragm, pad is also various, because through the crack of cracking, by processes such as dress diaphragm, welding, accent dress, sprayings, through repeatedly cracking and high-temperature soldering processing, cause the waveguide stress concentration or disperse inhomogeneous and cause structural deformation easily, meet the demands so often take to weld repeatedly bearing calibration, difficulty of processing is big, and rate of finished products is low, be difficult for realizing, relative cost is higher, and performance changes with the machining accuracy influence, and consistency is poor; The relative welding procedure of metal cutting comparatively easily realizes, but its weak point also clearly, requirement on machining accuracy height, unit process-cycle are long, machining accuracy is difficult to guarantee, often needing CNC to process meets the demands, so cycle or batch variation can appear in consistency of product, do not reach commercialization production purpose.In sum, for consistency of product, globality is boosted productivity, is reduced cost, and can adopt some mature technique means to design casting mould fully, casts out whole duplexer.

Summary of the invention

According to background technology, the purpose of this utility model is to provide a kind of employing metal liquid casting, is connected to become the duplexer of holistic resonant cavity with respect to the last A body and the following B body and function trip bolt of center plane of symmetry symmetrical configuration.

To achieve these goals, the utility model is achieved through the following technical solutions:

A kind of casting duplexer, mainly by last A body (1), following B body (2), trip bolt (3) and tuning screw (4) are formed, wherein: the planform that goes up A body (1) is a cuboid, be shaped on A body common port (11) in the whole casting of its sidepiece, on it and be shaped on attachment screw hole (17), casting is shaped on dividing plate (12) and chamber plate (13) is formed a plurality of resonant cavitys (14) jointly in the body of last A body (1), be shaped on trip bolt hole (15) and location hole (20) at last A body (1) along periphery, with trip bolt hole (15) perpendicular direction at interval tuning screw hole (16) is set simultaneously, coupling slotted eye (18) is set on the edge of dividing plate (12); Following B body (2) is with respect to last A body (1) and both center planes of symmetry (19) of following B body (2), and the structural outer shape and size are symmetrical consistent fully with the planform and the size of inside configuration, and following B body (2) is shaped on trip bolt through hole (25) along periphery; Last A body (1) and following B body (2) are connected by trip bolt (3), and the tuning screw of packing into (4) is combined into duplexer overall of have the sending and receiving end (21) and common port (22).

Owing to adopted technique scheme, the utlity model has following advantage and effect:

1, the utility model adopts casting technique to produce duplexer, the quantity and the processing capacity of discrete component have been reduced, improved productivity ratio, reduce the process-cycle, thereby made cost decreases, and guaranteed consistency of product, also just guaranteed uniformity in product performance, no matter quality for product is profile, surface, and the rigidity of structure, intensity all improve a lot, and actual test result and result of use all have great advantage.

2, the utility model is simple in structure, and is easy to assembly, cheap, and working service and repairing are simple and easy.

Description of drawings

Fig. 1 is the utility model general structure schematic perspective view

Fig. 2 is an A body on the utility model, the B body makes up schematic perspective view down

Fig. 3 A is A body on the utility model, following B body internal structure schematic diagram

Fig. 3 B is the A-A cross-sectional schematic of the utility model Fig. 3 A

Fig. 3 C is the B-B cross-sectional schematic of the utility model Fig. 3 A

Fig. 4 opens coupling slotted eye effect experimental curve diagram for the utility model

Fig. 5 is the utility model transmission line impedance matching effect experimental curve diagram

Embodiment

By Fig. 1, Fig. 2, Fig. 3 A and Fig. 3 B illustrate, a kind of casting duplexer, mainly by last A body 1, following B body 2, trip bolt 3 and tuning screw 4 are formed, wherein: the planform that goes up A body 1 is a cuboid, be shaped on A body common port 11 in the whole casting of its sidepiece, on it and be shaped on attachment screw hole 17, casting is shaped on dividing plate 12 and a plurality of resonant cavitys 14 of chamber plate 13 common compositions in the body of last A body 1, be shaped on trip bolt hole 15 and location hole 20 at last A body 1 along periphery, with trip bolt hole 15 perpendicular direction at interval tuning screw hole 16 be set simultaneously, coupling slotted eye 18 is set on the edge of dividing plate 12; Following B body 2 is with respect to both center planes of symmetry 19 of last A body 1 and following B body 2, and the structural outer shape and size are complete symmetrical consistent with the planform and the size of inside configuration, and following B body 2 is shaped on trip bolt through hole 25 along periphery; Last A body 1 and following B body 2 are connected by trip bolt 3, and the tuning screw 4 of packing into is combined into the overall of duplexer with sending and receiving end 21 and common port 22.

Other knows, the utility model adopts aluminium alloy liquefaction casting, and through going up the assembling that is spirally connected of A body 1 and following B body 2 after the simple cut, general structure displaying signal is 21 flow directions that flow to common port 22 from the sending and receiving end after the moulding.

Illustrate by Fig. 4,, on the dividing plate 12 of resonant cavity 14, open the experimental result that coupling slotted eye 18 excitation higher modes produce fluting in order to improve the outer rejection ratio of band.

Illustrated by Fig. 5, in order to satisfy the requirement of VSWR, and with male end 22 dimensions scale downward, its result reaches the experimental result of the impedance matching of good transmission line.

Claims

1. casting duplexer, mainly by last A body (1), following B body (2), trip bolt (3) and tuning screw (4) are formed, it is characterized in that: the planform that goes up A body (1) is a cuboid, be shaped on A body common port (11) in the whole casting of its sidepiece, on it and be shaped on attachment screw hole (17), casting is shaped on dividing plate (12) and chamber plate (13) is formed a plurality of resonant cavitys (14) jointly in the body of last A body (1), be shaped on trip bolt hole (15) and location hole (20) at last A body (1) along periphery, with trip bolt hole (15) perpendicular direction at interval tuning screw hole (16) is set simultaneously, coupling slotted eye (18) is set on the edge of dividing plate (12); Following B body (2) is with respect to last A body (1) and both center planes of symmetry (19) of following B body (2), and the structural outer shape and size are symmetrical consistent fully with the planform and the size of inside configuration, and following B body (2) is shaped on trip bolt through hole (25) along periphery; Last A body (1) and following B body (2) are connected by trip bolt (3), and the tuning screw of packing into (4) is combined into duplexer overall of have the sending and receiving end (21) and common port (22).