CN2735730Y

CN2735730Y - Metallic shielding casing

Info

Publication number: CN2735730Y
Application number: CN 200420090138
Authority: CN
Inventors: 王国芳
Original assignee: Huanda Computer Shanghai Co Ltd; Getac Technology Corp
Current assignee: Huanda Computer Shanghai Co Ltd; Getac Technology Corp
Priority date: 2004-09-16
Filing date: 2004-09-16
Publication date: 2005-10-19
Anticipated expiration: 2014-09-16

Abstract

A metallic shielding casing is composed of a conductive casing, a conductive cover board and a plurality of elastic members. One end of the elastic member is fixed to an opening of the conductive casing. The utility model increases the compactness of the conductive casing and the conductive cover board with a cantilever, reaching the effect of preventing the out-leakage of electromagnetic waves. In addition, when the conductive casing and the conductive cover board generate a gap because of local deformation, the elastic members can still be electrically connected with the conductive cover board in a close contact without configuring a piece of the existing conductive cloth or a conductive foamed cotton on the edge of the surface of the opening, thus, the cost of materials is saved.

Description

The metallic shield housing

Technical field

The utility model is about a kind of metallic shield housing, particularly the metallic shield housing that leaks outside about a kind of anti electromagnetic wave.

Background technology

The development of plastics industry enjoys favor all the time, almost any commodity are when making production, all can see plastic assembly miscellaneous, especially in electronic goods, for example on the commodity such as keyboard, mouse, screen, mobile phone, notebook computer, characteristic such as utilize the insulating properties of plastics good, easy to process, material is obtained easily on materials processing is handled, has very many advantages.

For the technology of plastic surface galvanizing,, except the metallic luster that increases the article appearance, also can avoid the phenomenon of Electromagnetic Interference (EMI) by the shield effectiveness of plated metal in industrial purposes.Generally speaking, the plating of being adopted now can divide into haply that electricity is electroplated and two kinds of electroless-platings, for the outer surface of the conductive shell that makes electronic product has metallic luster, usually utilize the mode of electroless-plating to form a structure alligatoring and thin electroplated metal layer earlier, utilize the mode that has electricity to electroplate to form a compact structure and thicker electroplated metal layer again, the inner surface of conductive shell then only forms a structure alligatoring and thin electroplated metal layer in the mode of electroless-plating.Though electroplated metal layer can form the shielding action of EMI, and reaching certain impedance, for the seam crossing of conductive shell, then is the key that EMI leaks outside.

Figure 1A and Figure 1B are the decomposing schematic representation and the generalized section of existing metallic shield housing.Please refer to Figure 1A, electronic installation has external members such as a conductive shell 110 and a conductive cover plate 120, and within conductive shell 110 and the conductive cover plate 120, outer surface carries out suitable electroplating processes, to prevent electromagnetic wave 10 dissipations.Wherein, existing conductive shell 110 surfaces for example have a peristome 112 (being seam crossing) of hollow out design, and the position of seam crossing for example is positioned at the bottom or the back of electronic installation.In addition, the peristome 112 of conductive shell 110 covers with a conductive cover plate 120 usually, and the root edge of the peristome 112 of conductive shell 110 has a loading end 114, in order to the conductive cover plate 120 of placement with peristome 112 same sizes, and loading end 114 for example with the surface periphery of conductive cover plate 120 join to, or with the surface of arbitrary opposite side of conductive cover plate 120 join to, and conductive shell 110 and conductive cover plate 120 mode (for example screw, bolt etc.) that can also lock or the mode that fastens and fix.

Please refer to Figure 1B, it should be noted that, have now in the electromagnetic test that leaks outside, since conductive shell 110 and conductive cover plate 120 peristome 112 to engage compactness not good, cause the phenomenon of electromagnetic wave 10 easily by peristome 112 dissipations, therefore have now in the design that anti electromagnetic wave leaks outside, must configuration one conduction patch (or conducting foam) 122 in the surface periphery of peristome 112 with as the obstruct interface, and the conductive effect of increase conductive shell 110 and conductive cover plate 120, leak outside by the not good joint face space of contact easily to prevent electromagnetic wave 10.Yet, conduction patch (or conducting foam) 122 cost height, and use easy deformation or can't reusable shortcoming for a long time, thereby reduce the effect that anti electromagnetic wave leaks outside.

Summary of the invention

Therefore, the purpose of this utility model just provides a kind of metallic shield housing, replaces conduction patch or conducting foam by an elastic component, engages compactness to increase, and saves material cost.

The utility model proposes a kind of metallic shield housing and have a conductive shell, a conductive cover plate and a plurality of elastic component, and conductive shell has a peristome, and the root edge of peristome has a loading end, in order to place the conductive cover plate with the same size of peristome.In addition, elastic component is configured in the madial wall periphery of loading end, and an end of these elastic components is fixed on the madial wall, and the peripheral surface and the electric connection of elastic component surface contact conductive cover plate, to stop that an electromagnetic wave is by peristome dissipation.

Thereby the utility model can reach the effect that anti electromagnetic wave leaks outside because of adopting cantilever design to increase the joint compactness.In addition, when conductive shell and conductive cover plate produce the gap because of local deformation, elastic component still can closely contact and electrically connect with conductive cover plate, thus must not dispose the patch of existing conduction or conducting foam surface periphery at peristome, and then save the cost of material.

Description of drawings

Figure 1A and Figure 1B are the decomposing schematic representation and the generalized section of existing metallic shield housing.

Fig. 2 A is the decomposing schematic representation of a kind of metallic shield housing of the utility model one preferred embodiment.

Fig. 2 B is the enlarged diagram of Fig. 2 A elastic component.

Fig. 3 is the decomposing schematic representation of a kind of metallic shield housing of another preferred embodiment of the utility model.

Embodiment

Please refer to Fig. 2 A, it is the decomposing schematic representation of a kind of metallic shield housing of the utility model one preferred embodiment, be applicable on the housing of an electronic installation, electronic installation has a conductive shell 210, a conductive cover plate 220 and a plurality of elastic component 230, and within conductive shell 210, conductive cover plate 220 and the elastic component 230, outer surface can carry out suitable electroplating processes, there is electricity to electroplate and electroless-plating as utilization, has an electroplated metal layer (not being) of metallic shield effect with formation.Conductive shell 210 surfaces for example have a peristome 212 (being seam crossing) of hollow out design, and the position of seam crossing can be positioned at the bottom or the back of electronic installation.In addition, the peristome 212 of conductive shell 210 is covered with a conductive cover plate 220 usually, and the root edge of the peristome 212 of conductive shell 210 can be provided with a loading end 214, in order to the conductive cover plate 220 of placement with peristome 212 same sizes, and loading end 214 for example with the surface periphery of conductive cover plate 220 join to, and conductive shell 210 and conductive cover plate 220 mode (for example screw, bolt etc.) that can also lock or the mode that fastens and fix.

Shown in Fig. 2 A, in the design that anti electromagnetic wave leaks outside, present embodiment is that a plurality of elastic components 230 are configured on the madial wall 214a periphery of loading end 214, and an end of these elastic components 230 is fixed on the madial wall 214a, and the peripheral surface of the surface of elastic component 230 contact conductive cover plate 220 also electrically connects, to stop that an electromagnetic wave 10 is by peristome 212 dissipations.Wherein, elastic component 230 can be identical with the material of conductive shell 210 and integrally formed, and can a spacing arrangement between adjacent two elastic components 230, and be centered around at least one madial wall 214a of loading end 214, leak outside by the not good joint face space of contact easily to prevent electromagnetic wave.In addition, when conductive shell 210 and conductive cover plate 220 produce the gap because of local deformation, elastic component 230 still can closely contact and electrically connect with conductive cover plate 220, thus must not dispose existing patch or the conducting foam of conducting electricity again in the surface periphery of peristome 212, and then the cost of saving material.

Please refer to Fig. 2 B, it is the enlarged diagram of the elastic component of Fig. 2 A.Under preferable situation, elastic component 230 is the cantilever group 232 of elastic force design, one end 232a for example is vertically fixed on the madial wall 214a of loading end 214 and the formation one crooked cantilever that stretches out, and other end 232b for example along the madial wall 214a of loading end 214 extend form one shaft-like, and shaft-like upper surface roughly trims or omit projection on loading end 214, and the peripheral surface and the electric connection of shaft-like upper surface contact conductive cover plate 220.So, when cantilever group 232 contacted with the periphery of conductive cover plate 220, cantilever group 232 strains and keep excellent contact produced with the space of avoiding seam crossing.Certainly, elastic component 230 also can utilize other flexible design (crooked shaft-like cantilever 330 for example shown in Figure 3) to increase the stabilized contact degree.

Please refer to Fig. 3, it is the decomposing schematic representation of another preferred embodiment of the utility model, and conductive cover plate 320 can directly bear against on the peristome 312 of conductive shell 310, and a plurality of cantilever 330 is integrally formed on the madial wall 312a of peristome 312 periphery.In addition, one end 332a of cantilever 330 for example is vertically fixed on the madial wall 312a, and other end 332b for example along the madial wall 312a of peristome 312 extend form one crooked shaft-like, and the crooked shaft-like peripheral surface and the electric connection with the corresponding contact of flat surfaces conductive cover plate 320 of cantilever 330 leaked outside by the space of peristome 312 easily to prevent an electromagnetic wave 10.

On industry was utilized, general merchandise was being made when producing, and its housing all can be reserved the window of maintenance or in order to disposing the opening of other spare part, yet the seam crossing between these openings and the conductive cover plate also becomes the place that electromagnetic wave leaks outside.In the common electronic installation, for example on the commodity such as mobile phone, notebook computer or PDA, the bottom of its housing or side dispose opening or window, and internal memory (memory) or other spare part can be by taking out among opening or the window or packing into, for avoiding electromagnetic wave to leak outside, the design that can leak outside by above-mentioned anti electromagnetic wave makes to engage compactness between conductive shell and the conductive cover plate and improve, to increase the degree of difficulty of electromagnetic wave dissipation.

In sum, metallic shield housing of the present utility model is applicable on the housing of an electronic installation, and the utility model is because of adopting the elastic construction design, increases the compactness that engages of conductive shell and conductive cover plate, so can reach the effect that anti electromagnetic wave leaks outside.In addition, when conductive shell and conductive cover plate produce the gap because of local deformation, elastic component still can closely contact and electrically connect with conductive cover plate, thus must not dispose the patch of existing conduction or conducting foam surface periphery at peristome, and then save the cost of material.

Claims

1. metallic shield housing is characterized in that: comprise at least:

One conductive shell has a peristome, and the root edge of this peristome has a loading end;

One conductive cover plate is configured on this loading end; And

A plurality of elastic components, dispose and be arranged in the madial wall periphery of this loading end, one end of each elastic component is fixed on the madial wall of this loading end, and the other end extends to the madial wall of this loading end, and the surface of those elastic components contacts the peripheral surface and the electric connection of this conductive cover plate.

2. metallic shield housing as claimed in claim 1 is characterized in that: wherein those elastic component loop configurations are at the madial wall of this peristome.

3. metallic shield housing as claimed in claim 1, it is characterized in that: described elastic component is a cantilever group, the one end is fixed on the madial wall of this loading end, and the other end extends along the madial wall of this loading end and forms one shaft-likely, and this shaft-like surface contacts the peripheral surface and the electric connection of this conductive cover plate.

4. metallic shield housing as claimed in claim 1 is characterized in that: the surface of described elastic component has an electroplated metal layer.

5. metallic shield housing as claimed in claim 1 is characterized in that: wherein the surface of this conductive shell has an electroplated metal layer.

6. metallic shield housing as claimed in claim 1 is characterized in that: wherein the surface of this conductive cover plate has an electroplated metal layer.

7. metallic shield housing as claimed in claim 1 is characterized in that: wherein those elastic components and this conductive shell adopt integrally formed structure.

8. metallic shield housing is characterized in that: comprise at least:

One conductive shell has a peristome, and has a plurality of cantilevers on the madial wall of this peristome, and the one end is fixed on the madial wall of this peristome, and the other end extends along the madial wall of this peristome and forms a flat surfaces; And

One conductive cover plate is configured on this peristome, and the flat surfaces of those cantilevers contacts the peripheral surface of this conductive cover plate and electrically connects

9. metallic shield housing as claimed in claim 8 is characterized in that: described cantilever loop configurations is at the madial wall of this peristome.

10. metallic shield housing as claimed in claim 8 is characterized in that: wherein the surface of this conductive shell and described cantilever has an electroplated metal layer.

11. metallic shield housing as claimed in claim 8 is characterized in that: wherein the surface of this conductive cover plate has an electroplated metal layer.

12. metallic shield housing as claimed in claim 8 is characterized in that: described cantilever and this conductive shell adopt integrally formed structure.