CN203850402U

CN203850402U - Self-positioning broadside electrical bridge waveguide

Info

Publication number: CN203850402U
Application number: CN201420202911.8U
Authority: CN
Inventors: 涂学明; 杨芳; 杨芹粮; 李益平; 宁春颖; 刘俊杰
Original assignee: Chengdu Jinjiang Electronic System Engineering Co Ltd
Current assignee: Chengdu Jinjiang Electronic System Engineering Co Ltd
Priority date: 2014-04-24
Filing date: 2014-04-24
Publication date: 2014-09-24
Anticipated expiration: 2024-04-24

Abstract

The utility model discloses a self-positioning broadside electrical bridge waveguide. The waveguide comprises an upper half waveguide, a lower half waveguide, a closure plate A (5) and a closure plate B (6), wherein the closure plate A (5) and the closure plate B (6) are fixedly connected with the upper half waveguide and the lower half waveguide through locating pins respectively, the upper half waveguide and the lower half waveguide are welded together, the upper half waveguide comprises an upper chamber (1) and a flange plate A (2) disposed at the outer side of the end port of the upper chamber (1), the upper chamber (1) and the flange A (2) are integrally formed, the lower half waveguide comprises a lower chamber (3) and a flange plate B (4) disposed at the outer side of the end port of the lower chamber (3), the lower chamber (3) and the flange plate B (4) are integrally formed, the upper half waveguide is provided with a self-positioning buckle at one side adjacent to the contact face, and the lower half waveguide is provided with a self-positioning clamp slot matched with the self-positioning buckle. The self-positioning broadside electrical bridge waveguide provided by the utility model is high in self-positioning and waveguide aligning precision and strong in resistance to corrosion.

Description

A kind of self-align broadside electric bridge waveguide

Technical field

The utility model relates to the waveguide of a kind of broadside electric bridge, particularly relates to the waveguide of a kind of self-align broadside electric bridge.

Background technology

Waveguide is a kind of constraint or structure of guide electromagnetic waves of being used for, for radio fields such as radio communication, radar, navigation.At present, the most segmentation combination modes that adopt of broadside electric bridge waveguide fabrication process that microwave device manufacturing firm continues to use form wave-guide cavity wave, after wave-guide cavity wave segmentation combination is completed, the part such as additional flange dish again, and just can assemble and debug after repeatedly milling, line cutting, pincers worker reconditioning, correction, heat treatment, pickling, gas brazing and the operation such as silver-plated.Adopt above-mentioned processing technology to there is following shortcoming:

1, whole processing technology need to be carried out repeatedly flame welding to waveguide, and causing long and wave-guide cavity wave of production cycle to be welded localized heating, to affect deflection large, thereby cause waveguide assemblies dimensional accuracy to be difficult to guarantee;

2, owing to adopting gas brazing, higher to operating personnel's technical requirement, and welding quality is subject to operating personnel's impact large;

3, the stronger fluorine-containing brazing flux of corrosivity using because of gas brazing, the inner residual brazing flux of wave-guide cavity wave is difficult to thorough removing, even if waveguide is carried out silver-plated, its protection effect is still not high, thereby greatly reduces the corrosion resistance of waveguide.

In order to address the above problem, available technology adopting vacuum brazing mode is welded waveguide, and its technical scheme is: the electric bridge waveguide assembling is put into vacuum aluminum stove, by vacuum brazing temperature process curve, electric bridge waveguide is carried out to vacuum brazing.Thereby avoid multiple welding to cause wave-guide cavity wave distortion and the corrosion of residual brazing flux to cavity.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of self-align broadside electric bridge waveguide self-align, that waveguide aligning accuracy is high and conductivity is strong and anti-electromagnetic signal interference performance is strong that has is provided.

The purpose of this utility model is achieved through the following technical solutions: the waveguide of a kind of self-align broadside electric bridge, it comprises first half waveguide, Lower Half waveguide, shrouding A and shrouding B, by alignment pin, waveguide is fixedly connected with shrouding A with Lower Half with first half waveguide respectively with shrouding B, first half waveguide is together with Lower Half waveguide and seal plate welding, described first half waveguide comprises upper cavity and is positioned at the ring flange A in the port outside of upper cavity, and upper cavity and ring flange A are one-body molded; Lower Half waveguide comprises lower chamber and is positioned at the ring flange B in the port outside of lower chamber, lower chamber and ring flange B are one-body molded, first half waveguide is provided with self-align buckle near a side of contact-making surface, the self-align draw-in groove that the self-align buckle of Lower Half waveguide matches, first half waveguide and Lower Half waveguide position by self-align buckle and self-align draw-in groove.

Described first half waveguide and Lower Half waveguide weld together by vacuum brazing.

Compared with prior art, the utlity model has following beneficial effect:

1) waveguide is divided into first half waveguide, Lower Half waveguide and encapsulation, and ring flange and wave-guide cavity wave one-body molded, thereby reduced production process;

2) on the contact-making surface combining in first half waveguide and Lower Half waveguide, be provided with buckle and draw-in groove, thereby it is self-align to have realized waveguide top and the bottom, has improved aligning accuracy;

3) waveguide is carried out to a vacuum brazing moulding, thereby reduced welding times, overcome because multiple welding causes wave-guide cavity wave to be welded localized heating and affected the problem that deflection is large, ensured the dimensional accuracy of waveguide assemblies; Because Process of Vacuum Brazing does not need brazing flux, thereby overcome brazing flux, waveguide is corroded, thereby strengthened the corrosion resistance of waveguide, extend the useful life of waveguide, ensured the light densification of soldered fitting simultaneously, improve the mechanical performance of soldered fitting.

Brief description of the drawings

Fig. 1 is broadside electric bridge of the present utility model waveguide;

In figure, 1-upper cavity, 2-ring flange A, 3-lower chamber, 4-ring flange B, 5-shrouding A, 6-shrouding B, 7-solder.

Embodiment

Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.

As shown in Figure 1, a kind of self-align broadside electric bridge waveguide, it comprises first half waveguide, Lower Half waveguide, shrouding A5 and shrouding B6, by alignment pin, waveguide is fixedly connected with shrouding A5 with Lower Half with first half waveguide respectively with shrouding B6, first half waveguide and Lower Half waveguide weld together, described first half waveguide comprises upper cavity 1 and is positioned at the ring flange A2 in the port outside of upper cavity 1, and upper cavity 1 and ring flange A2 are one-body molded; Lower Half waveguide comprises lower chamber 3 and is positioned at the ring flange B4 in the port outside of lower chamber 3, lower chamber 3 and ring flange B4 are one-body molded, first half waveguide is provided with self-align buckle near a side of contact-making surface, the self-align draw-in groove that the self-align buckle of Lower Half waveguide matches, first half waveguide and Lower Half waveguide position by self-align buckle and self-align draw-in groove, and postwelding is counted milling flange dish profile.

Preferably, on contact-making surface, be filled with solder 7, first half waveguide, Lower Half waveguide, shrouding A5 and shrouding B6 weld together by vacuum brazing.

Claims

1. self-align broadside electric bridge waveguide, it is characterized in that: it comprises first half waveguide, Lower Half waveguide, shrouding A(5) and shrouding B(6), shrouding A(5) with shrouding B(6) by alignment pin, waveguide is fixedly connected with Lower Half with first half waveguide respectively, first half waveguide and Lower Half waveguide weld together, described first half waveguide comprises upper cavity (1) and is positioned at the ring flange A(2 in the port outside of upper cavity (1)), upper cavity (1) and ring flange A(2) one-body molded; Lower Half waveguide comprises lower chamber (3) and is positioned at the ring flange B(4 in the port outside of lower chamber (3)), lower chamber (3) and ring flange B(4) one-body molded, first half waveguide is provided with self-align buckle near a side of contact-making surface, the self-align draw-in groove that the self-align buckle of Lower Half waveguide matches.

2. the self-align broadside electric bridge of one according to claim 1 waveguide, is characterized in that: described first half waveguide, Lower Half waveguide, shrouding A(5) and shrouding B(6) weld together by vacuum brazing.