CN203434255U

CN203434255U - Filter with fixed shielding cover

Info

Publication number: CN203434255U
Application number: CN201320573084.9U
Authority: CN
Inventors: 刘亚东; 陈荣达
Original assignee: SUZHOU RF TOP ELECTRONIC COMMUNICATION CO Ltd
Current assignee: Suzhou Rf Top Electronic Communications Co ltd
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2014-02-12
Anticipated expiration: 2023-09-16

Abstract

The utility model discloses a filter with a fixed shielding cover. The filter with the fixed shielding cover comprises a ceramic base body and a housing. The upper surface and the front end surface of the ceramic base body are connected with the housing by means of tin soldering. The housing is provided with clamping sheets extending correspondingly to two side surfaces of the ceramic base body. The housing is fixed on the two side surfaces of the ceramic base body through the clamping sheets. According to the utility model, the upper surface and the front end surface of the ceramic base body are connected with the housing by means of the tin soldering, so that deformation is avoided in the process of packaging and transporting, and the product quality is good; the housing is fixed on the ceramic base body through the clamping sheets, so that the housing of the filter is prevented from moving after tin immersion in the subsequent SMT process, and the electrical performance is stable; and in the process of using the filter, an individual housing welding position is not needed to be designed on a PCB surface, so that the process flow is simple.

Description

The filter that a kind of radome is fixing

Technical field

The utility model relates to a kind of filter, relates in particular to the fixing filter of a kind of radome.

Background technology

Filter, as its name suggests, is the device that ripple is filtered, and it forms main networking by inductor and capacitor.In order to reach the effect of " neatly " and signal shielding, general dielectric filter need to install in the surface design of its ceramic block a metal shell additional.

But, common shell is easily offset when assembling or follow-up SMT on position, left and right, and when using, client designs input/output interface except necessary, also need to be designed at PCB opposite position the pad of welding filter housing, and shell produce and follow-up packed and transported process in easily distortion, cause filter electric property to change.

Utility model content

In order to solve the technical problem existing in background technology, the utility model proposes the fixing filter of a kind of radome, can realize filter position after SMTization tin can not be offset, and need on pcb board face, not design again independent shell welding position in use, in packing and transportation, can not be out of shape, electrical characteristic also can not change, constant product quality.

The utility model provides a kind of radome fixing filter, comprise ceramic matrix and shell, the upper surface of described ceramic matrix is connected with described shell by scolding tin with front end face, the position extension of the relatively described ceramic matrix of described shell two sides is provided with card, and described shell is fixed on the two sides of described ceramic matrix by described card.

Preferably, described card and described shell are one-body molded.

Preferably, described card has coupler construction, and the position of the corresponding described snap fit of described ceramic matrix is provided with hangers, and described snap fit and hangers snapping are in order to fix described shell and described ceramic matrix.

Based on disclosing of technique scheme, upper surface and the front end face of its ceramic matrix of filter that described radome that the utility model provides is fixing connect with shell by scolding tin, in the process of packing and transportation, deformation, good quality of product can not occur; By card, shell and ceramic matrix are fixed, this filter can not moved after follow-up SMTization tin, electric property is stable; And when using this filter, need on pcb board face, not design independent shell welding position, technological process is simple.

Accompanying drawing explanation

Fig. 1 is the perspective view of the fixing filter of a kind of radome that the utility model proposes;

Fig. 2 is the end view of the fixing filter of a kind of radome that the utility model proposes;

Fig. 3 is the front view of the fixing filter of a kind of radome that the utility model proposes.

Drawing reference numeral explanation

1-ceramic matrix, 2-shell, 11-upper surface, 12-front end face, 13-side, 21-upper surface welding portion, 22-masked segment, 23-front end face welding portion, 24-card.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.

Refer to Fig. 1, the utility model provides a kind of radome fixing filter, comprises ceramic matrix 1 and shell 2.

Refer to Fig. 1 and Fig. 2, the upper surface 11 of described ceramic matrix 1 is connected with described shell 2 by scolding tin with front end face 12, and connection is respectively as above shown in surface soldered part 21 and front end face welding portion 23.Masked segment 22 is in front end face 12 sides.

Refer to Fig. 2 and Fig. 3, the position extension of the two sides 13 of the relatively described ceramic matrix 1 of described shell 2 is provided with card 24, and described shell 2 is fixed on the two sides 13 of described ceramic matrix 1 by described card 24.

In the present embodiment, described card 24 is one-body molded with described shell 2, and described card 24 has snap fit (not shown) structure, the position of described ceramic matrix 1 corresponding described snap fit is provided with hangers (not shown), described snap fit and hangers snapping are in order to fixing with described ceramic matrix 1 by described shell 2, but snap fit and hangers only, for wherein a kind of mode that is fixed of shell 2 and ceramic matrix 1, are not limited for this reason.

To sum up, upper surface 11 and the front end face 12 of its ceramic matrix 1 of filter that described radome is fixing connect with shell 2 by scolding tin, in the process of packing and transportation, deformation, good quality of product can not occur; By card 24, shell 2 is fixing with ceramic matrix 1, this filter can not moved after follow-up SMTization tin, electric property is stable; And when using this filter, need on pcb board face, not design independent shell welding position, technological process is simple.

The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection range of the present utility model.

Claims

1. the filter that radome is fixing, it is characterized in that, comprise ceramic matrix and shell, the upper surface of described ceramic matrix is connected with described shell by scolding tin with front end face, the position extension of the relatively described ceramic matrix of described shell two sides is provided with card, and described shell is fixed on the two sides of described ceramic matrix by described card.

2. the fixing filter of a kind of radome according to claim 1, is characterized in that, described card and described shell are one-body molded.

3. the fixing filter of a kind of radome according to claim 1, it is characterized in that, described card has coupler construction, and the position of the corresponding described snap fit of described ceramic matrix is provided with hangers, and described snap fit and hangers snapping are in order to fix described shell and described ceramic matrix.