CN206673921U - Ultra-thin type casing type filter construction - Google Patents

Abstract

The utility model ultra-thin type casing type filter construction is related to filter housing, especially with the box structure wave filter of upper lid.Including wave filter back box and upper lid, wiring PIN is furnished with two relative side walls of wave filter back box, PIN two row parallel with outside P IN pin in inner side are furnished with each side wall, a downward step is provided with along outside P IN pin in back box side wall, it is corresponding with outside P IN pin that a plurality of shallow slots are provided with the table top of the step.Step is set in two relative side walls of back box, the lead of its coil and the pad of PIN are on the step table top set, PIN can also use slightly shorter, the upper lid can set in shell back box is done relatively thin, so as to save certain space, whole filter shape volume is diminished, be thinned.

Description

Ultra-thin type casing type filter construction

Technical field

The utility model ultra-thin type casing type filter construction is related to filter housing, especially with the box structure of upper lid Wave filter.

Background technology

The filter housing of prior art typically only has shell back box, and electronic component is placed in shell back box, its electricity The pin of sub- component is located on the opening ora terminalis of shell.The openings snap-fit of filter housing is on wiring board during installing.It is such a Installing mode can cause shell back box and circuit board member to leave very big gap, the impurity such as dust, moisture during use in air Meeting nature is entered in filter housing, can gather more impurity in shell back box over time, and then can influence component Normal work, so that influenceing the service life of component when serious, produce quality accident.

Therefore, applicant have developed the box filter with upper lid, solve the problems, such as that dust impurity enters in box, protect Wave filter component normal work has been demonstrate,proved, has improved the service life of wave filter.But this takes the box filter of lid, such as scheme 1 show the sectional view for the box filter for taking lid, and Fig. 2 show the front view for the back box for removing upper lid, because coil draws The pad of line and PIN 1 is located on the top surface 21 of back box side wall 2, upper lid 3 must just have significantly inner chamber 31 house PIN 1, hence in so that filtering type integrally becomes thicker, volume is bigger.But due to the trend toward miniaturization of electronic product, it is desirable to electronics member device Part will also minimize.Lid will increase the volume of wave filter on being installed additional in wave filter back box, so as to be difficult to the need for meeting client Ask.

Utility model content

The purpose of this utility model is exactly that the structure of wave filter back box is improved the defects of overcoming above-mentioned prior art so that The volume of box filter with upper lid diminishes, and is thinned wave filter, meets miniaturization of electronic products trend, meets client Demand.

The utility model ultra-thin type casing type filter construction, including wave filter back box and upper lid are relative in wave filter back box Two side walls on be furnished with wiring PIN, PIN two row parallel with outside P IN pin in inner side are furnished with each side wall, its feature exists In being provided with a downward step along outside P IN pin in back box side wall, provided with a plurality of shallow slots and outside on the table top of the step Side PIN is corresponding.

Above-mentioned ultra-thin type casing type filter construction, the shallow slot extends to inside sidewalls face at outside P IN pin, described The groove depth of shallow slot is gradually increased.

Using above-mentioned the technical program, step is set in two relative side walls of back box, the lead and PIN of its coil Pad positioned at set step table top on, PIN also can use it is slightly shorter, the upper lid can set in shell back box is done It is relatively thin, so as to save certain space, whole filter shape volume is diminished, be thinned.

Brief description of the drawings

Fig. 1 show the sectional view of prior art box filter.

Fig. 2 show prior art and removes the back box front view after upper lid.

Fig. 3 show the utility model ultra-thin type casing type filter construction sectional view.

Fig. 4 show the utility model ultra-thin type casing type wave filter and removes the back box front view after upper lid.

Embodiment

The utility model is further described with reference to embodiment and accompanying drawing.

See that Fig. 3, Fig. 4 show the embodiment of the utility model ultra-thin type casing type filter construction one.Including wave filter back box 5 With upper lid 6, wiring PIN is furnished with two relative side walls of wave filter back box 5, is furnished with the right side wall 51 of back box 5 interior Side PIN 7 and outside P IN pin 8, arranged in parallel two row, it is downward provided with one along outside P IN pin in two side walls of back box 5 Step, have a downward step 511 along outside P IN pin 8 in right side wall 51 in the present embodiment figure, in the table top of the step 511 5110 is corresponding with outside P IN pin 8 provided with a plurality of shallow slots 5111, the corresponding shallow slot of each outside P IN pin 8.It is described shallow Groove 5111 extends to the medial surface 512 of right side wall 51 at outside P IN pin 8, and the groove depth of the shallow slot is gradually increased, and that is to say shallow slot Groove bottom relative to the top surface plane of upper lid 6 be an inclined-plane.In this way, step is set in two relative side walls of back box, its The lead of coil and the pad of PIN on the step table top set, PIN can also use it is slightly shorter, in shell back box The upper lid can set is done relatively thin, so as to save certain space, whole filter shape volume is diminished, slim Change.

Above-mentioned embodiment is specific embodiment of the utility model, be not intended to limit it is of the present utility model implementation with Interest field, the equivalence changes and modification that all contents according to described in utility model application scope of patent protection are made, all should be wrapped Include in present utility model application the scope of the claims.

Claims (2)

1. ultra-thin type casing type filter construction, including wave filter back box and upper lid, in two relative side walls of wave filter back box Wiring PIN is furnished with, PIN two row parallel with outside P IN pin in inner side are furnished with each side wall, it is characterised in that in back box side wall On along outside P IN pin be provided with a downward step, it is corresponding with outside P IN pin that a plurality of shallow slots are provided with the table top of the step.

2. ultra-thin type casing type filter construction according to claim 1, it is characterised in that the shallow slot is at outside P IN pin Inside sidewalls face is extended to, the groove depth of the shallow slot is gradually increased.