CN1816272A - Electrocircuit mode equipment - Google Patents
Electrocircuit mode equipment Download PDFInfo
- Publication number
- CN1816272A CN1816272A CN 200510127640 CN200510127640A CN1816272A CN 1816272 A CN1816272 A CN 1816272A CN 200510127640 CN200510127640 CN 200510127640 CN 200510127640 A CN200510127640 A CN 200510127640A CN 1816272 A CN1816272 A CN 1816272A
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- China
- Prior art keywords
- radome
- shielded rack
- planar portions
- recess
- rack
- 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.)
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The circuit module device is provided with a shield frame 1 which can be fitted to surround an electrical component 4 arranged on the substrate 3, and a shielding cover 2 fitted in a prescribed position of the shield frame. The shielding frame has a plane 1a and a bending part which is bent by a prescribed angle, with respect to the plane and is fitted to surround the electric component arranged on the substrate. The shielding cover is fitted to the shielding frame so that it covers the electrical component on the substrate. The plane 2a of the shielding cover is formed into a shape which is not overlapped with the plane of the shielding frame. The plane of the shielding frame and the plane of the shielding cover become flush, in a state where the shield cover and the shielding frame are assembled.
Description
Technical field
The present invention relates to reduce the Electrocircuit mode equipment of unwanted radio wave, wherein, unwanted radio wave may be superimposed upon the input circuit plate or from the signal of circuit board output.
Background technology
In order to reduce the unwanted radio wave from circuit module, following syndeton is widely used in circuit module.Circuit module uses the electromagnetic wave shielding member such as radome to cover fully, and has the hole that is used for circuit module is connected to external circuit.Circuit module use connecting lines etc. receive and send signal through this hole.Another kind of syndeton also is widely used, and wherein is exposed to the outside of shielding construction such as the Connection Element of connector.
For example, the Japanese Patent Application Publication publication has proposed a kind of shielding case that is used to shield high-frequency circuit portion for 2003-133777 number.This shielding case comprises: shielded rack is assembled to surround high-frequency circuit portion; And radome, be mounted to the top surface of shielded rack, to surround high-frequency circuit portion.Shielded rack has at least one flange, and it forms the top surface perpendicular to substrate.The tip of flange is inserted into the patchhole of radome, and the edge of radome is mounted on the flange.
The shielding case of above-mentioned public publication is characterised in that the patchhole owing to radome has reduced height.Yet the assembly surface of shielded rack is assembled on the substrate, thereby the thickness of shielding case has increased the thickness of department of assembly.When shielding case was incorporated in the size-constrained equipment such such as cell phone, this can cause limiting the problem that the shielding case size reduces.
Summary of the invention
One aspect of the present invention provides a kind of Electrocircuit mode equipment, comprising:
Shielded rack, it has planar portions and folding part, and wherein, the folding part is folding with given angle with respect to planar portions, to surround the electronic component that is provided with on the substrate;
Radome, it is assembled on the shielded rack, and with the electronic component on the covered substrate, described radome is formed and makes its planar portions not overlapping with the planar portions of shielded rack; And
Shielding case, it is made up of shielded rack and radome,
It is characterized in that: when assembling shielded rack and radome, the planar portions of shielded rack and the planar portions of radome almost flush mutually.
To describe other advantages of the present invention in the following description, part will become by description and obviously or by realization of the present invention understand, and advantage of the present invention can realize by the equipment combination that particularly points out below utilizing and obtain.
Description of drawings
Accompanying drawing is incorporated in the specification and constitutes the part of specification, is used from the explanation embodiments of the invention with above general description and following detailed description one, explains principle of the present invention.
Fig. 1 illustrates the perspective schematic view of an example of the capsul of Electrocircuit mode equipment according to an embodiment of the invention;
Fig. 2 illustrates the shielded rack of Electrocircuit mode equipment and the perspective schematic view of substrate according to an embodiment of the invention;
Fig. 3 is the schematic diagram that the assembling of the shielded rack of Electrocircuit mode equipment according to an embodiment of the invention and radome is shown;
Fig. 4 illustrates the shielded rack of Electrocircuit mode equipment according to an embodiment of the invention and the fixing sectional view of radome;
Fig. 5 is the sectional view that another fixing example of the shielded rack of Electrocircuit mode equipment according to an embodiment of the invention and radome is shown;
Fig. 6 illustrates the perspective schematic view of another shielding case of Electrocircuit mode equipment according to an embodiment of the invention; And
Fig. 7 illustrates the perspective illustration of the character shape of the shielded rack of Electrocircuit mode equipment according to an embodiment of the invention.
Embodiment
Hereinafter with reference to accompanying drawing one embodiment of the present of invention are described.
Fig. 1 shows circuit module (module) device.This is a kind of RF circuit module device, typically such as personal computer and handheld terminal or cell phone, be installed in the mobile device of tuner in the PC card etc.
Electrocircuit mode equipment comprises: shielded rack 1, be assembled to the radome 2 on the shielded rack 1; And be fixed on printed circuit board (PCB) 3 on the given position of shielded rack 1.Printed circuit board (PCB) (strutting piece) 3 comprises a plurality of high-frequency circuits 4 such as tuner IC and demodulation IC.Shielded rack 1 and radome 2 are formed shielding case.
By for example pressure processing (press working) bored a hole in the middle part of plane barricade with conductivity, with folding about 90 degree in the perimeter of barricade, make shielded rack 1 form rectangular frame structure on the whole then.Plain-straight-face flange 1a is formed on each place in four angles of frame structure.Projection 1b almost is arranged on each central authorities of the fold domain of shielded rack 1.Projection 1b has protuberance (section) 1c.
Radome 2 is fixed on the shielded rack 1 to cover the surface of shielded rack 1.Radome 2 be constructed such that it not on its thickness direction from shielded rack 1 projection, but when they were fitted together, radome was configured to almost flush with shielded rack 1.In other words, radome 2 has planar portions 2a, is used for covering the part that is perforated of shielded rack 1 so that the surface of the surface of shielded rack 1 and radome 2 with the surperficial parallel direction of substrate 3 on flush substantially mutually.The part that radome 2 does not have corresponding to the flange 1a of shielded rack 1.Radome 2 makes each all be folded about 90 degree corresponding to part utilization such as the pressure processing of the projection 1b of shielded rack 1.Like this, projection 2b is formed on every side of radome 2, and is provided with recess or hole 2c.
The flange 1a of shielded rack 1 can provide given intensity (towing) to be used for the distortion of shielded rack 1.As will be described in detail with reference to FIG. 2, make the recess 3a of projection 1b contact print circuit board 3 of shielded rack 1.
The material of shielded rack 1 is a metal for example, and its thickness is less than 1mm.If the folding position of projection 1b and angle are provided with by the best, when making the recess 3a of projection 1b contact print circuit board 3, are enough to and produce the very big power that printed circuit board (PCB) 3 separates with projection 1b that prevents at assigned direction.
Recess 3a is designed to be welded on the projection 1b of shielded rack 1.Thereby, shielded rack 1 is installed on the printed circuit board (PCB) 3.As will be described below, because flange 1a is positioned at high-frequency circuit (electronic component) side of printed circuit board (PCB) 3, therefore can uses automatic assembly equipment, and can prevent the increase of shielding case integral thickness.
In said structure, shielded rack 1 is installed on the printed circuit board (PCB) 3 with fixed mask cover 2.Make lip-deep, as to be used to a weld terminal and a shank (projection) that is formed on printed circuit board (PCB) 3, can be positioned at the outside of shielding case.Thereby the thickness of the shielding case of being made up of shielded rack 1 and radome 2 can further reduce.
More specifically, shielded rack 1 is downcut by single piece of sheet metal, and utilizes pressure processing to form the shape of similar cylinder.As shown in Figure 1, make the shape that forms the flange 1a that avoids shielded rack 1 as the planar portions 2a of the major part of radome 2.Therefore, as shown in Figure 3, when being installed in radome 2 on the shielded rack 1, make the top surface of radome 2 and the surface of flange 1a almost flush (concordant) each other.
Therefore, can make the thickness of the thickness minimizing radome 2 of shielding case (circuit module).
Electrocircuit mode equipment need have the structure of sealing, wherein electronic component (high-frequency circuit) 4 is set at device inside, preventing that unwanted radio wave is leaked to the outside from electronic component, and prevent that noise (unwanted radio wave) from arriving electronic component from the outside.
Therefore, circuit module is accommodated in the capsul of describing referring to figs. 1 through Fig. 3, reveals and prevents to disturb electric wave (unwanted radio wave) to enter the shielding case from the outside with the high-frequency electric wave that prevents from wherein to produce.
The attenuation as much as possible of the side of shielded rack 1.Yet,, wish to comprise that the thickness of electronic component 4 (high-frequency circuit) of the thickness of printed circuit board (PCB) 3 is for example 1.4mm or littler when this equipment being installed to when being typically in the cellular mobile device.Therefore, there is the manufacturing restriction in the thickness to shielded rack 1.
If being set, the height (thickness) be installed in the electronic component (high-frequency circuit) 4 on the printed circuit board (PCB) 3 is not more than a certain fixed value (when the thickness of printed circuit board (PCB) 3 is that the thickness of 0.4mm, radome 2 is that 0.2mm and surplus (gap) are during for 0.2mm, this fixed value is 0.6mm), can prevent the planar portions 2a of electronic component 4 contact radomes 2 and the flange 1a of shielded rack 1, and they can be positioned on the printed circuit board (PCB) 3 Anywhere.This helps the setting of electronic component.
As mentioned above, according to this embodiment of the invention, the surface of the top surface of radome 2 and flange 1a can be arranged to almost flush each other or be almost concordant.
Fig. 4 shows the assembling of Electrocircuit mode equipment.In this assembling, protuberance 1c is formed on the corresponding projection 1b of shielded rack 1, and projection 2b is arranged on each side of radome 2, and is arranged among its corresponding projection 2b corresponding to recess or the hole 2c of the protuberance 1c of shielded rack 1.Therefore, when shielded rack 1 and radome 2 are assemblied in the other side when going up each other, protuberance 1c and recess or hole 2c can be fixed to one another.This structure can prevent that radome 2 from undesirably separating with shielded rack 1.
Fall or accept under the situation of big external force at Electrocircuit mode equipment or mobile device that circuit module has been installed, can prevent that radome 2 is separated, can also prevent itself and the impressing pattern of printed circuit board (PCB) 3, the contact and the short circuit that contact (sealing wire or pattern) etc. of electronic component (high-frequency circuit).
As shown in Figure 5 and Figure 6, even protuberance 2d is formed on each projection 2b of radome 2, and hole or recess 1d are formed among each projection 1b of shielded rack 1, also can realize function same as described above.
Protuberance and recess or hole are described with reference to Fig. 1 and Fig. 4 or Fig. 5 and Fig. 6, and they mainly suitably use according to the shape and the intensity of shielded rack 1 and radome 2.
Fig. 7 is the schematic diagram that the assembly equipment of the flange 1a that uses shielded rack 1 is shown.
Above-mentioned flange 1a is formed on the shielded rack 1.Flange 1a can suppress the distortion of shielded rack 1 grade, therefore, makes it form intended size.
When automatically being installed in shielded rack 1 on the printed circuit board (PCB) 3, use the automatic assembly equipment (not shown).If the size of each flange 1a (area) all is set to be not less than the size (for example diameter of 1mm) of nozzle 6, then shielded rack 1 can be installed to by automatic assembly equipment on (being assemblied in) printed circuit board (PCB) 3.
In the example shown in Fig. 1 to 3 or Fig. 6 and 7, be provided with four flange 1a; Yet at least one flange only can be arranged on the zone that is used for automatic assembly equipment.In this case, flange is subjected to the influence of the weight and the shape (balance) of shielded rack 1, but preferably, be defined as two flange 1a on every diagonal of shielded rack 1 of rectangle usually and should have given area, be used for automatic assembly equipment as mentioned nozzle area (nozzle area).
In the shielding construction of present embodiment,, the gap need be set for prevent shielded rack 1 and radome 2 undesirable being in contact with one another (to prevent the arbitrary portion of radome 2, especially its planar portions 2a moves) on the part of shielded rack 1.
The gap is used to make above-mentioned interference electric wave to enter and unwanted radio wave is launched from high-frequency circuit.
Therefore, preferably: radome 2 and shielded rack 1 by such as aluminium foil and aluminium flake 5 can the electric screen gap electric conducting material cover.Obviously, can use the metal forming that scribbles adhesive, for example aluminium strip with conductivity.
As has been described, in Electrocircuit mode equipment according to an embodiment of the invention, make radome 2 form the shape of the flange 1a that avoids shielded rack 1, so radome can almost flush (concordant) and is provided with each other with flange.This structure has reduced the thickness of capsul and has used the thickness of the Electrocircuit mode equipment of this shielding case.
Radome and shielded rack can be directly fixed to one another by protuberance and recess or hole.Therefore, need be and may increase the fixture of whole capsul thickness for fixed mask cover and shielded rack, but the shielding case attenuation.Therefore, radome can stably be connected (assembling) with shielded rack.
In addition, can prevent the leakage of the unwanted radio wave that assembling (precision of element) aspect shielded rack and the required gap of radome cause or the introducing of extraneous noise.
According to embodiments of the invention, make the planar portions of radome form not overlapping with the planar portions (flange) of shielded rack.Therefore, when radome was installed on the shielded rack, the top surface of radome and flange can be arranged to almost flush each other.Therefore, can make shielding case reduce the thickness of radome.
The top surface of radome almost flushes (concordant) each other with flange.Therefore, if the thickness that is installed in the element on the substrate less than the distance between substrate and the radome, then wherein the element position that can be set on the substrate can be not limited.Therefore, can prevent that shielded rack and radome from contacting with parts on the substrate, and setting element easily.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. Electrocircuit mode equipment comprises:
Shielded rack has planar portions and folding part, and described folding part is folding with given angle with respect to described planar portions, is arranged on electronic component on the substrate with encirclement;
Radome is assemblied on the described shielded rack, and to cover the described electronic component on the described substrate, described radome is formed the shape that makes its planar portions not overlapping with the described planar portions of described shielded rack; And
Shielding case is made of described shielded rack and described radome,
It is characterized in that: when described shielded rack and described radome were assembled, the described planar portions of described shielded rack and the described planar portions of described radome almost flushed mutually.
2. Electrocircuit mode equipment according to claim 1, it is characterized in that, the described folding part of described shielded rack has recess or hole, and described radome has and the relative protuberance of described recess or described hole, and described protuberance is mounted in described recess or the described hole.
3. Electrocircuit mode equipment according to claim 1 is characterized in that, the described folding part of described shielded rack has protuberance, and described radome has recess or the hole relative with described protuberance, and described protuberance is mounted in described recess or the described hole.
4. Electrocircuit mode equipment according to claim 1 is characterized in that, the described planar portions of described shielded rack has the assembly area, and described assembly area is restricted to and allows described radome to be assembled in large scale on the described shielded rack by automatic assembly equipment.
5. Electrocircuit mode equipment according to claim 4 is characterized in that, described assembly area is arranged on every diagonal of described shielded rack.
6. Electrocircuit mode equipment according to claim 1 is characterized in that described substrate has recess, and the part of the described folding part of described shielded rack is mounted in the described recess, and described recess is used for the location.
7. Electrocircuit mode equipment according to claim 6 is characterized in that, described assembly area is set on every diagonal of described shielded rack.
8. Electrocircuit mode equipment comprises:
Shielded rack has planar portions and folding part, and described folding part is folding with given angle with respect to described planar portions, is arranged on electronic component on the substrate with encirclement;
Radome is assembled on the described shielded rack to cover the described electronic component on the described substrate, and described radome is formed the shape that makes its planar portions not overlapping with the described planar portions of described shielded rack; And
Shielding case is made of described shielded rack and described radome,
It is characterized in that: when described shielded rack and described radome are assembled, the described planar portions of described shielded rack and the described planar portions of described radome almost flush mutually, and the described planar portions of the described planar portions of described shielded rack and described radome each all be coated with conductive component.
9. Electrocircuit mode equipment according to claim 8, it is characterized in that, the described folding part of described shielded rack has recess or hole, and described radome has and the relative protuberance of described recess or described hole, and described protuberance is mounted in described recess or the described hole.
10. Electrocircuit mode equipment according to claim 8 is characterized in that, the described folding part of described shielded rack has protuberance, and described radome has recess or the hole relative with described protuberance, and described protuberance is mounted in described recess or the described hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004353314 | 2004-12-06 | ||
| JP2004353314A JP2006165201A (en) | 2004-12-06 | 2004-12-06 | Circuit module device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1816272A true CN1816272A (en) | 2006-08-09 |
Family
ID=36666877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510127640 Pending CN1816272A (en) | 2004-12-06 | 2005-12-06 | Electrocircuit mode equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006165201A (en) |
| CN (1) | CN1816272A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102469755A (en) * | 2010-11-10 | 2012-05-23 | 夏普株式会社 | Circuit module and electronic device including the same |
| CN104869796A (en) * | 2014-02-21 | 2015-08-26 | 三星电子株式会社 | Fastening structure for shield can |
| CN105744820A (en) * | 2016-04-27 | 2016-07-06 | 青岛海信移动通信技术股份有限公司 | Circuit board and display apparatus |
| CN106413368A (en) * | 2016-10-31 | 2017-02-15 | 努比亚技术有限公司 | Shielding cover, substrate and circuit board |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4929897B2 (en) * | 2006-07-25 | 2012-05-09 | 富士通東芝モバイルコミュニケーションズ株式会社 | Shield structure and portable terminal equipped with shield structure |
| JP5111939B2 (en) * | 2007-05-30 | 2013-01-09 | 京セラ株式会社 | Shield case for electronic equipment and electronic equipment |
| JP5206097B2 (en) * | 2008-04-25 | 2013-06-12 | 富士通モバイルコミュニケーションズ株式会社 | Electronic equipment and grounding mechanism |
| JP2011054888A (en) * | 2009-09-04 | 2011-03-17 | Kyocera Corp | Shield structure and electronic apparatus |
| CN102348367A (en) * | 2010-08-04 | 2012-02-08 | 深圳富泰宏精密工业有限公司 | Shielding case and electronic device applying same |
| KR101326548B1 (en) | 2013-03-28 | 2013-11-07 | 성우전자 주식회사 | Electromagnetic waves shield panel |
| KR101326552B1 (en) * | 2013-03-28 | 2013-11-07 | 성우전자 주식회사 | Electromagnetic waves shield panel with improved slim thickness |
| CN111954451B (en) * | 2019-05-16 | 2023-09-19 | 莱尔德电子材料(深圳)有限公司 | Board-level shielding cover |
-
2004
- 2004-12-06 JP JP2004353314A patent/JP2006165201A/en active Pending
-
2005
- 2005-12-06 CN CN 200510127640 patent/CN1816272A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102469755A (en) * | 2010-11-10 | 2012-05-23 | 夏普株式会社 | Circuit module and electronic device including the same |
| CN104869796A (en) * | 2014-02-21 | 2015-08-26 | 三星电子株式会社 | Fastening structure for shield can |
| US10117367B2 (en) | 2014-02-21 | 2018-10-30 | Samsung Electronic Co., Ltd. | Fastening structure for shield can |
| CN104869796B (en) * | 2014-02-21 | 2019-11-05 | 三星电子株式会社 | Fastening structure for shielding case |
| CN105744820A (en) * | 2016-04-27 | 2016-07-06 | 青岛海信移动通信技术股份有限公司 | Circuit board and display apparatus |
| CN105744820B (en) * | 2016-04-27 | 2019-06-14 | 青岛海信移动通信技术股份有限公司 | A kind of circuit board and display device |
| CN106413368A (en) * | 2016-10-31 | 2017-02-15 | 努比亚技术有限公司 | Shielding cover, substrate and circuit board |
| CN106413368B (en) * | 2016-10-31 | 2019-08-02 | 努比亚技术有限公司 | A kind of shielding case, substrate and circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006165201A (en) | 2006-06-22 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |