CN1102013C - Shielding unit of mobild telephone for preventing electromagnetic interference - Google Patents
Shielding unit of mobild telephone for preventing electromagnetic interference Download PDFInfo
- Publication number
- CN1102013C CN1102013C CN 99113940 CN99113940A CN1102013C CN 1102013 C CN1102013 C CN 1102013C CN 99113940 CN99113940 CN 99113940 CN 99113940 A CN99113940 A CN 99113940A CN 1102013 C CN1102013 C CN 1102013C
- Authority
- CN
- China
- Prior art keywords
- shield
- circuit board
- electromagnetic interference
- board
- mobile phone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to an electromagnetic interference resistance shield for a mobile telephone, which is assembled on a circuit board of the mobile phone. The electromagnetic interference resistance shield for a mobile telephone comprises a shield board and two assembled boards, wherein the two assembled boards are oppositely arranged and welded on the circuit board, and the side wall of each assembled board is provided with a plurality of buckled bodies. The shield board approximately presents an n shape. The shield board is provided with an apical board and at least one of buckled contact boards buckling and extending from the two opposite side edges of the apical board to the circuit board. The buckled contact boards are provided with openings corresponding to the buckled bodies of the assembled boards, and the openings can be buckled with the corresponding buckled bodies. Consequently, the shield board and the assembled boards are fixed on the circuit board together.
Description
The present invention is the masking device of the anti-electromagnetic interference of a kind of mobile phone, on especially a kind of circuit board that is assembled in mobile phone so that the masking device that covers effect to electronic component on the circuit board to be provided.
Mobile phone causes distorted signals because it usually can be in the different environments for use and very easily be subjected to outside electromagnetic interference, how to prevent that therefore extraneous electromagnetic interference from being the direction that industry personage explores always.See also Fig. 1, the masking device 8 of the anti-electromagnetic interference of existing mobile phone is the square box shape body of tool one opening usually, these masking device 8 first covers are also covered the periphery at the portions of electronics element at least on the circuit board on the mobile phone 9, then with masking device 8 solid weldings on this circuit board 9, and can realize function that electronic component on the circuit board 9 is covered.Yet because this masking device is to be made into integration, so after it is welded on the circuit board, is about to masking device and is permanently affixed on the circuit board and is difficult to dismantle, at this moment, if the electronic component of crested need be changed or repair, then must remelting and remove masking device, its process is very loaded down with trivial details.
The object of the present invention is to provide a kind ofly be easy to dismantle, the masking device of the anti-electromagnetic interference of easy-to-install mobile phone.
The objective of the invention is to be achieved through the following technical solutions: the masking device of the anti-electromagnetic interference of mobile phone is assembled on the circuit board of mobile phone so that the shielding function to electronic component on the circuit board to be provided, comprise shield and two winding plates, wherein two winding plates are oppositely arranged and are welded on the circuit board, the sidewall of each winding plate is provided with several buttons, and shield is slightly to be " " shape and to have at least one snapping plate that a top board and each are extended towards the circuit board bending by top board two opposite sides edge, and this snapping plate be provided with corresponding to the opening of the button of winding plate can with corresponding button snapping, thereby can shield and winding plate mutual group is solid on circuit board.
Compared with prior art, the invention has the advantages that: the masking device of the anti-electromagnetic interference of mobile phone is to adopt detachable fit system group solid on circuit board, it is easy to dismounting, and can not hinder the maintenance or the replacing of electronic component on the mobile telephone circuitry plate and simple installation.
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is that the masking device of the anti-electromagnetic interference of existing mobile phone is applied to the schematic diagram on the mobile phone.
Fig. 2 is that the present invention is applied to the three-dimensional exploded view on the mobile phone.
Fig. 3 is that the present invention is applied to the three-dimensional combination figure on the mobile phone.
See also Fig. 2, the present invention is assembled on the circuit board of mobile phone 5 so that the shielding function to electronic component 50 on the circuit board 5 to be provided, and comprises shield 1 and two winding plates 3.Wherein two winding plates 3 be oppositely arranged and common vertical solid welding on circuit board 5, its sidewall 30 is provided with several buttons 32.Shield 1 slightly is " " shape, it has a top board 10 and each is by the snapping plate 12 of top board 10 two opposite sides edge towards circuit board 5 bending extensions, and these snapping plates 12 be provided with corresponding to the opening 14 of the button 32 of winding plate 3 can with corresponding button 32 snappings, thereby can shield 1 and winding plate 3 mutual group are solid on circuit board 5.
Please consult Fig. 2 and shown in Figure 3 simultaneously, when the present invention is assembled on the circuit board 5 of mobile phone, earlier two winding plates 3 are oppositely arranged and common vertical and solid welding on the appropriate location of circuit board 5 and keep certain distance, then the snapping plate 12 with shield 1 is resisted against respectively on the sidewall 30 of winding plate 3, and corresponding button is fastened and realizes that winding plate 3 is solid with the group of shield 1 on the opening on it 14 and the winding plate 3, thereby whole masking device is solid on circuit board 5 with separate type fit system group.
Therefore, 3 of shield 1 of the present invention and winding plates are solid with simple and easy snapping mode snapping group, so its assembling is very easy.And the present invention is solid on circuit board with separate type fit system group, and it is easy to dismounting, and can not hinder the replacing of electronic component on the mobile telephone circuitry plate.
Claims (4)
1. a mobile phone is prevented the masking device of electromagnetic interference, be assembled on the circuit board of mobile phone, it is characterized in that: this masking device includes shield and several winding plates, the at least two snapping plates that this shield has a top board and extended towards the circuit board direction by appropriate position on this top board, and respectively be provided with at least one opening on these buckles, and the winding plate be solid welding on circuit board, and and its be provided with several buttons with button be held on the shield realize with the group of shield in the corresponding opening solid.
2. the masking device of the anti-electromagnetic interference of mobile phone according to claim 1, it is characterized in that: described snapping plate is located at the two opposite sides edge of top board.
3. the masking device of the anti-electromagnetic interference of mobile phone according to claim 2, it is characterized in that: described masking device has two winding plates, this two windings plate be oppositely arranged and common vertical and solid welding on circuit board.
4. the masking device of the anti-electromagnetic interference of mobile phone according to claim 2, it is characterized in that: described shield slightly is " " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99113940 CN1102013C (en) | 1999-07-30 | 1999-07-30 | Shielding unit of mobild telephone for preventing electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99113940 CN1102013C (en) | 1999-07-30 | 1999-07-30 | Shielding unit of mobild telephone for preventing electromagnetic interference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1283062A CN1283062A (en) | 2001-02-07 |
| CN1102013C true CN1102013C (en) | 2003-02-19 |
Family
ID=5277077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99113940 Expired - Fee Related CN1102013C (en) | 1999-07-30 | 1999-07-30 | Shielding unit of mobild telephone for preventing electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1102013C (en) |
-
1999
- 1999-07-30 CN CN 99113940 patent/CN1102013C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1283062A (en) | 2001-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |