CN206977922U - Screening cover - Google Patents

Abstract

The utility model provides a kind of screening cover, including the first lid and the second lid for being arranged in the first lid.First lid includes bottom wall and the side wall being arranged on bottom wall.Second lid includes bottom plate and the side plate being arranged on bottom plate.The side wall of first lid is provided with engaging component.The side plate of second lid is provided with lock-in component.Second lid is engaged by lock-in component with engaging component to be fixed in the first lid to form at least two blind zones.The utility model also provides the electronic equipment with above-mentioned screening cover.Screening cover and electronic equipment provided by the utility model, it is engaged and the second lid is fixed in the first lid to form at least two blind zones with engaging component by lock-in component, its structural stability is not only improved, and good shielding properties can also be also ensured while multi-shielding area is provided.

Description

Screening cover

Technical field

It the utility model is related to a kind of screening cover, and in particular to a kind of embedded screening cover.

Background technology

With the fast development of science and technology, such as vehicle mounted guidance, drive recorder, in-car TV electronic equipment, its internal electricity Often have signal interference between subcomponent, using screening cover the electronic component of printed circuit board (PCB) can be risen shielding action so as to Prevent electromagnetic interference.Different electronic components are shielded in order to realize, it usually needs screening cover is isolated into multiple blind zones. Existing multiple blind zone screening cover types mainly have integral type and frame capping formula.

As shown in figure 1, existing screening cover 200 forms cut-off 210 by integrated punching so as to form two in the middle Blind zone.However, when forming cut-off 210, opening 220 can be stamped and formed out.Opening 220 can influence the performance of screening cover 200, cause There is signal interference with the external world at work for the circuit of shielding cover area.

In addition, for the vehicle electronic device often used in the environment of vibration, its multi-shielding area screening cover is also required to There is preferable structural stability to avoid because screening cover departs from or loosening causes its shielding properties to fluctuate appearance. Therefore it provides the multi-shielding area screening cover that a kind of shielding is good, structural stability is good turns into urgent problem to be solved.

Utility model content

The purpose of this utility model is to provide the multi-shielding area screening cover that a kind of shielding is good, structural stability is good.

The screening cover, including the first lid and the second lid for being arranged in the first lid.First lid include bottom wall and The side wall being arranged on bottom wall.Second lid includes bottom plate and the side plate being arranged on bottom plate.The side wall of first lid is provided with Engage component.The side plate of second lid is provided with lock-in component.Second lid is engaged solid by lock-in component with engaging component Due in the first lid to form at least two blind zones.

Wherein, it is convex with respect to the engaging of two side walls including at least two to be respectively arranged at the first lid for the engaging component Rise, the lock-in component is at least two locking holes being opened on the second lid epipleural, and at least two locking holes are distinguished It is corresponding with least two snap fit tabs.

Wherein, for the snap fit tabs formed with snap-latch surface, the snap-latch surface is parallel with the bottom wall of the first lid.

Wherein, the side wall of the locking holes comprises at least the planar end surface parallel to the second lid bottom plate, for convex when engaging Rise and be connected to snap-latch surface after being contained in locking holes.

Wherein, the planar end surface to distance and the snap-latch surface of the outer surface of the second lid bottom plate to the first lid bottom wall in The distance on surface is equal.

Wherein, the both ends of the planar end surface are interference fitted formed with two limiting sections, two limiting sections with snap fit tabs.

Wherein, the concave side wall of first lid forms the snap fit tabs, and the snap fit tabs are offered through side The through hole of wall.

Wherein, the snap fit tabs are also formed with gently sloping surface, and the smooth-sided of the gently sloping surface to the first lid is excessively to card The one end of conjunction face away from side wall.

The utility model also provides a kind of electronic equipment with above-mentioned screening cover.

Screening cover and electronic equipment provided by the utility model, it is engaged by lock-in component with engaging component by the second lid Body is fixed in the first lid to form at least two blind zones, not only improves its structural stability, and can also carry For also ensuring good shielding properties while multi-shielding area.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, right For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings His accompanying drawing.

The structural representation of the existing screening covers of Fig. 1.

Fig. 2 is the electronic equipment schematic diagram that the utility model embodiment provides.

Fig. 3 is the structural representation of the screening cover of the utility model embodiment.

Fig. 4 is the decomposing schematic representation of screening cover shown in Fig. 3.

Fig. 5 is enlarged sections of the Fig. 3 along II-II directions.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme of the utility model embodiment is carried out clearly Chu, it is fully described by.

Also referring to Fig. 2, screening cover 100 that the utility model embodiment provides is applied to (such as the car of electronic equipment 300 Carry navigation, drive recorder, in-car TV) in.Screening cover 100 includes the first lid 110 and the second lid 120.Second lid Body 120 is installed in the first lid 110, to form at least two blind zones 150,160.

First lid 110 is hollow cuboid in the present embodiment.First lid 110 includes generally rectangular bottom Wall 112 and four side walls (hereinafter referred to as the first side wall 113, second sidewall 114, the 3rd side wall being perpendicularly fixed on bottom wall 112 115 and the 4th side wall 116).Four side walls are end to end successively and are collectively forming with bottom wall 112 with the rectangular of opening Body.

First lid 110 is provided with engaging component 130.Engaging component 130 includes at least two snap fit tabs 132.This is extremely Few two snap fit tabs 132 are set in relative side wall respectively.In the present embodiment, it is convex including four engagings to engage component 130 132 are played, two of which snap fit tabs 132 are arranged at intervals in second sidewall 114, and two other snap fit tabs 132 is arranged at intervals In the 4th side wall 116.Each snap fit tabs 132 are recessed by respective side walls (by taking side wall 116 as an example).When from outside inside When, snap fit tabs 132 are the depression that the outer surface of side wall 116 is recessed；When from it is interior outward when, snap fit tabs 132 are side wall 116 The hemisphere jut that inner surface is formed.The thickness of snap fit tabs 132 is identical with the thickness of side wall 116.As shown in figure 3, snap fit tabs 132 parts are removed and form the through hole 134 of substantially semicircular in shape and generally curved snap-latch surface 136.The snap-latch surface 134 Parallel with bottom wall 112, the direction that the first lid 110 is inserted with the second lid 120 is vertical.The snap fit tabs 132 are also formed with delaying Inclined-plane 138.Corresponding side wall (for example, second sidewall 116) smooth excessiveness of the lid of gently sloping surface 138 to the first 110 is to snap-latch surface 136 one end away from side wall 116.

As shown in figure 4, the structure of the second lid 120 is roughly the same with the structure of the first lid 110, the two difference is being in It is different in size.The length of second lid 120 is equal with the distance between 110 relative two side walls of the first lid.At this In embodiment, the length of the second lid 120 is equal with the distance between the side wall 116 of second sidewall 114 and the 4th.Second lid 120 include generally rectangular bottom plate 122 and four side plate (hereinafter referred to as the first side plates being perpendicularly fixed on bottom plate 122 123rd, the second side plate 124, the 3rd side plate 125 and the 4th side plate 126).Four side plates it is end to end successively and with bottom plate 122 It is collectively forming the cuboid with opening.Second lid 120 is provided with lock-in component 140.Lock-in component 140 is with engaging component 130 are engaged, for the second lid 120 to be fixed into the first lid 110.

Lock-in component 140 includes at least two locking holes 142 being respectively arranged on relative two side plates.In the present embodiment In, lock-in component 140 includes four locking holes 142 being opened on 120 relative two side plates 123,125 of the first lid.This four Individual locking holes 142 are corresponding with four snap fit tabs 132 respectively, for when the second lid 120 is fixed in the first lid 110 House snap fit tabs 132.

In order that the second lid 120 is more stably fixed to the first lid 110, the side wall of locking holes 142 comprises at least Parallel to the planar end surface 1422 of the bottom plate 122 of the second lid 20.The outer surface of bottom plate 122 of the lid of planar end surface 1422 to the second 120 Distance is equal with the distance of the inner surface of bottom wall 112 of the lid of snap-latch surface 136 to the first 110.Respectively with the both ends phase of planar end surface 1422 The side wall of locking holes 142 of connection forms two limiting sections 1424.Two limiting sections 1424 are interference fitted with snap fit tabs 132, Snap fit tabs 132 are limited along the direction parallel to second sidewall 114 or so activity.Locking holes 142 can be semicircle, can also It is rectangle, can also be the other shapes with planar end surface 1422, the utility model is not limited thereto.

During assembling, the second lid 120 inserts the first lid 110 along perpendicular to the direction of bottom wall 112, because of snap fit tabs 132 Gently sloping surface 138 effect, the second sidewall 114 and the 4th of the side plate 123,125 of the second lid 120 and the first lid 110 116 gradual deformation of side wall is stepped down, and until snap fit tabs 132 are contained in locking holes 142, now the second lid 120 is fixed to the One lid 110 simultaneously forms at least two blind zones 150,160.Specifically, the hollow bulb of the second lid 120 forms an independent screen Cover area 150, it is separate with blind zone 150 that the hollow bulb of the first lid 110 by the second lid 120 is isolated into one or two Blind zone 160.

After the second lid 120 is fixed to the first lid 110, snap-latch surface 136 and the planar end surface 1422 of locking holes 142 offset Connect, while the bottom wall 112 of the first lid 110 is connected to the bottom plate 122 of the second lid 120, can so prevent the edge of the second lid 120 Perpendicular to first direction (X-direction) activity of bottom wall 112.At the same time, second sidewall 114 and the 4th side wall 116 are connected to The opposite end of two lid 120 (i.e. side plate 123,125), therefore the second lid 120 can be prevented along parallel to the first side wall 112 Two directions (Y-direction) activity.In addition, because the limiting section 1424 of locking holes 142 is interference fitted with snap fit tabs 132, therefore can prevent Only the second lid 120 is movable along the third direction (Z-direction) parallel to second sidewall 114.Therefore, by engage component 130 with Lock-in component 140 is engaged, and the activity of the second lid 120 can be limited from tri- dimensions of X, Y, Z, so as to greatly improve its Stability Analysis of Structures Property.

After the second lid 120 is fixed to the first lid 110, at least two separate blind zones 150,160 are formed, Therefore good shielding properties is also ensured while multi-shielding area is provided.

Because engaging component 130 is provided with through hole 134, enable under the second lid 120 dismantles from the first lid 110 Come.Specifically, the side wall 123 of the second lid 120 is compressed to bring it about after through hole 134 being passed through with instrument (such as screwdriver) Deformation is stepped down so that snap fit tabs 132 can depart from locking holes 142, so as to allow the second lid 120 can be from the first lid 110 On disassemble.

In summary, although the utility model is disclosed above with preferred embodiment, the preferred embodiment is simultaneously not used to The utility model is limited, one of ordinary skill in the field is not being departed from spirit and scope of the present utility model, can be made each Kind is changed and retouching, therefore the scope of protection of the utility model is defined by the scope that claim defines.

Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these are improved and profit Decorations are also considered as the scope of protection of the utility model.

Claims (9)

1. a kind of screening cover, including the first lid and the second lid for being arranged in the first lid, the first lid include bottom wall and The side wall being arranged on bottom wall, the second lid include bottom plate and the side plate being arranged on bottom plate, it is characterised in that the first lid Side wall is provided with engaging component, and the side plate of the second lid is provided with lock-in component, and the second lid is by lock-in component with engaging group Part, which is engaged, to be fixed in the first lid to form at least two blind zones.

2. screening cover as claimed in claim 1, it is characterised in that the engaging component is respectively arranged at the including at least two For one lid with respect to the snap fit tabs of two side walls, the lock-in component is at least two locks being opened on the second lid epipleural Hole is closed, at least two locking holes are corresponding with least two snap fit tabs respectively.

3. screening cover as claimed in claim 2, it is characterised in that the snap fit tabs formed with snap-latch surface, the snap-latch surface with The bottom wall of first lid is parallel.

4. screening cover as claimed in claim 3, it is characterised in that the side wall of the locking holes is comprised at least parallel to the second lid The planar end surface of body bottom plate, for being connected to snap-latch surface after snap fit tabs are contained in locking holes.

5. screening cover as claimed in claim 4, it is characterised in that the planar end surface to the outer surface of the second lid bottom plate away from It is equal from with a distance from the inner surface of snap-latch surface to the first lid bottom wall.

6. screening cover as claimed in claim 4, it is characterised in that the both ends of the planar end surface, should formed with two limiting sections Two limiting sections are interference fitted with snap fit tabs.

7. screening cover as claimed in claim 3, it is characterised in that it is convex that the concave side wall of first lid forms the engaging Rise, the snap fit tabs offer the through hole through side wall.

8. screening cover as claimed in claim 3, it is characterised in that the snap fit tabs are also formed with gently sloping surface, the gently sloping surface To the first lid smooth-sided excessively to the one end of snap-latch surface away from side wall.

9. a kind of electronic equipment, it is characterised in that the electronic equipment includes the screening cover described in claim 1-8 any one.