CN2736983Y - Conduction shell of electronic card and packaging structure for same electronic card - Google Patents
Conduction shell of electronic card and packaging structure for same electronic card Download PDFInfo
- Publication number
- CN2736983Y CN2736983Y CN 200420074182 CN200420074182U CN2736983Y CN 2736983 Y CN2736983 Y CN 2736983Y CN 200420074182 CN200420074182 CN 200420074182 CN 200420074182 U CN200420074182 U CN 200420074182U CN 2736983 Y CN2736983 Y CN 2736983Y
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- conductive shell
- electronic cards
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- utility
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Abstract
The utility model provides a conducting shell of an electronic card and a packaging structure for the electronic card. The utility model is integrally formed and comprises a main body, wherein the main body is provided with a top surface and a plurality of lateral surfaces; a plurality of corner parts are defined by the connecting positions of the top surface with two adjacent lateral surfaces; at least one corner part is provided with at least one vacant part, and thus the utility model avoids the phenomenon that a metallic sheet of the conducting shell causes the fracture or crack of the metal of the corner part under the interaction of stress in the process of drawing and pulling and enhances integral mechanical strength and force of wind resistance. In addition, the metallic sheet does not cause that a shaped stereoscopic conducting shell can not be buried into a plastic frame due to the directions and the degree of unexpected fracture and crack so that the electronic card is unqualified.
Description
Technical field
The utility model relates to a kind of conductive shell of electronic cards and the encapsulating structure of this electronic cards, refers to a kind of conductive shell of small electronic card and the encapsulating structure of this electronic cards especially.
Background technology
Recently,, and the trend of miniaturization is gradually arranged, such as data card (modem card), network card (Local Area Network card, LAN card) and memory card (memory card) or the like because the transformation of media causes the application of electronic cards very wide.The common international standards of electronic cards have PC RAM (random access memory) card (PCMCIA) and flash memory (Compact Flash card, CF card) and safe digital card (secure digital card) or multimedia memory card (multimedia memory card, MMC CARD) etc., and new specification standards also constantly the development in the middle of.Though the specification details of these electronic cards is variant, the mode of its encapsulation and structure are then similar.In general, the encapsulation of electronic cards must provide enough mechanical strength and electric property, and must meet some certain criteria (standard) standard at least, moreover, the employed method of packaging electronic card also must be applicable to encapsulation procedure, so manufacturing that can be a large amount of, certainly structural strength and packaging cost considers the emphasis that develops electronic cards especially.
Traditional electronic cards encapsulating structure bends the periphery of two conductive shells up and down downwards mostly, and with the engaging mode make conductive shell and the plastics housing combine after, through folder/tool (tool) two conductive shell riveteds are up and down got up again, and seal plastic frame and printed circuit board (PCB).Because the processing procedure of the conductive shell of this kind electronic cards experience bending in advance with the mode combination of plastic frame to engage, can make that so conductive shell and plastic frame can not link together closely again.And, because conductive shell is made in the mode of bending, therefore integrally-built mechanical strength is relatively poor, the distortion power quantity not sufficient that can bear, when electronic cards is subjected to external force or the effect of deflection strength, conductive shell just is easy to can be because of slight external strength take place depression or distortion, and then also may be from plastic frame body loosening and come off.
See also Fig. 1, it is the employed three-dimensional conductive shell schematic diagram of present electronic cards encapsulating structure.Three-dimensional conductive shell 1 utilizes cold draw to be formed in the mode of stretch (draft) by metal material sheet, and by imbedding that ejaculation (INSERT MOLDING) is shaped or mode such as energy waves injection makes the partly plastic material of plastic frame body (not shown) be bonded in the described connecting portion 11 around this solid conductive shell 1, with the intensity that links between reinforced plastics framework and the three-dimensional conductive shell 1, the conductive shell that can solve the traditional electrical subcard whereby is because integrally-built bad mechanical strength, anti-twist strength is little, and when electronic cards is influenced by external force or deflection strength, be easy to generate the defective of depressed deformation or fracture.
But above-mentioned conductive shell and method also have shortcoming, promptly in the pull process that forms three-dimensional conductive shell 1 with metal material sheet, owing to be subjected to the metal material sheet thickness of three-dimensional conductive shell and the influence of ductility, when the metal material sheet pull to a segment distance in fact, metal may will rupture or chap, especially, the position, position of corner portion 12, because of being subjected to the pulling force upwards and the extruding of both sides simultaneously, fracture or be full of cracks take place in the easier corner portion 12 that causes of the reciprocation of stress, thus, the mechanical strength and the anti-twist strength of whole three-dimensional conductive shell will be influenced.In addition, the direction of metal fracture and be full of cracks and degree can make when three-dimensional conductive shell 1 and plastic frame body to imbed ejaculation (INSERT MOLDING) and be shaped or after mode such as energy waves injection combines, still can't imbed in the plastic frame body, cause the bad influence of electronic cards encapsulation.The three-dimensional conductive shell of thickness below 0.06mm particularly, the probability that may rupture be full of cracks just improve more, problem is also even more serious.
Therefore, how to develop a kind of defective and the intensity of reinforcement small electronic card and electronic cards encapsulating structure of conjugation that improves above-mentioned known technology, real is the problem that needs solution at present.
Summary of the invention
Main purpose of the present utility model is to provide a kind of conductive shell of electronic cards, improve this conductive shell in manufacture process, the stress reciprocation that is produced because of the sheet metal pull causes the situation of corner portion metal fracture or be full of cracks, and increases the mechanical strength and the anti-twist strength of conductive shell integral body.In addition, also can make sheet metal not because of the fracture that can't expect and the direction and the degree of be full of cracks, and the conductive shell of moulding can't be combined with plastic frame body, influence the structure of whole electronic cards.
For reaching above-mentioned purpose, of the present utility model one implements the sample attitude for a kind of conductive shell of electronic cards is provided than broad sense, it is formed in one, and comprise: a body, it has an end face and several sides, define several corner portion with this end face with two adjacent positions that this side was connected, have at least one vacancy portion on wherein at least one corner portion; So as to, utilize this vacancy portion to prevent that conductive shell from fracture or be full of cracks taking place in manufacture process, wherein this conductive shell is a metallic plate before moulding.
In embodiment, has a specific range in fact between this end face of this vacancy portion and this body, and vacancy portion forms in the mode of perforate on this corner portion, removal or cut-off parts metallic plate, and wherein vacancy portion can be shapes such as perforate, right angle, quadrant.Wherein has a specific range in fact between the end face of this vacancy portion and this body.
The conception above-mentioned according to the utility model, wherein this electronic installation is a safe digital card (securedigital card, SD CARD), a multimedia memory card (multimedia memory card, encapsulating structure MMCCARD), a carry-on dish or an intelligent memory card.
The utility model further provides a kind of encapsulating structure of electronic cards, it comprises a three-dimensional conductive shell and a plastic frame body, wherein, three-dimensional conductive shell is stretched by metallic plate and forms, and has a body, wherein body also includes an end face and several sides, these several sides are provided with several connecting portions, and this end face is defined as several corner portion with two adjacent positions that this side was connected, and has at least one vacancy portion on this corner portion, and plastic frame body makes its partly plastic material be bonded to described connecting portion and this vacancy portion of this solid conductive shell by a processing mode, and be fixed in this solid conductive shell below, wherein also can a ccontaining circuit board in this plastic frame body.So as to, utilize this vacancy portion to prevent that three-dimensional conductive shell from fracture or be full of cracks taking place in manufacture process, and this plastic frame body is fixed under this solid conductive shell, to form the encapsulating structure of electronic cards by this connecting portion and this vacancy portion.
The conception above-mentioned according to the utility model wherein should be made by the metallic plate that upwards stretches by the solid conductive shell.
The conception above-mentioned according to the utility model, wherein this processing mode is selected from and imbeds ejaculation (INSERTMOLDING), implantation, buckle, ultrasonic waves joint or high frequency juncture.
The conception above-mentioned according to the utility model, wherein this vacancy portion forms in the mode of perforate, removal or cut-off parts metallic plate on this corner portion.
The conception above-mentioned according to the utility model, wherein this vacancy portion is the shape of perforate, right angle, quadrant.
The conception above-mentioned according to the utility model wherein has a specific range between this end face of this vacancy portion and this body.
The conception above-mentioned according to the utility model, wherein the inside of this plastic frame body has an accommodation space, with the internal circuit unit of holding electronic card.
The conception above-mentioned according to the utility model, wherein this electronic cards is a safe digital card (securedigital card, SD CARD).
The conception above-mentioned according to the utility model, wherein this electronic cards is a multimedia memory card (multimedia memory card, MMC CARD).
The conception above-mentioned according to the utility model, wherein this electronic cards is carry-on dish.
The conception above-mentioned according to the utility model, wherein this electronic cards is intelligent memory card.
The conception above-mentioned according to the utility model, wherein this circuit board is a printed circuit board (PCB), and be laid with internal memory with and/or electronic building brick.
The utility model must be by the following icon and embodiment explanation, makes a more deep understanding:
Description of drawings
Fig. 1 is the three-dimensional conductive shell schematic diagram of present electronic cards.
Fig. 2 (A) is the vertical view of conductive shell before moulding of the utility model first preferred embodiments.
Fig. 2 (B) is the conductive shell schematic diagram of the utility model first preferred embodiment.
Fig. 2 (C) is the conductive shell corner portion partial enlarged drawing of the utility model first preferred embodiment.
Fig. 3 (A) is the vertical view of conductive shell before moulding of the utility model second preferred embodiments.
Fig. 3 (B) is the conductive shell schematic diagram of the utility model second preferred embodiment.
Fig. 3 (C) is the conductive shell corner portion partial enlarged drawing of the utility model second preferred embodiment.
Fig. 4 (A) is the vertical view of conductive shell before moulding of the utility model the 3rd preferred embodiments.
Fig. 4 (B) is the conductive shell schematic diagram of the utility model the 3rd preferred embodiment.
Fig. 4 (C) is the conductive shell corner portion partial enlarged drawing of the utility model the 3rd preferred embodiment.
Wherein, description of reference numerals is as follows:
1: three-dimensional conductive shell 11: connecting portion
12: corner portion 2: metallic plate
21: end face district 22: vacancy portion
23: corner portion 24: the side district
W: vacancy portion and corner portion apart from H: the side height
26: local corner portion 3: three-dimensional conductive shell
31: end face district 32: vacancy portion
33: corner portion 34: the side district
35: local corner portion 4: three-dimensional conductive shell
41: end face frame line 42: cut and draw the place
43: corner portion 44: the side district
45 side frame lines 46: local corner portion
Embodiment
Some exemplary embodiments that embody the utility model feature and advantage will be described in detail in the explanation of back segment.Be understood that the utility model can have various variations on different aspects, its neither disengaging scope of the present utility model, and explanation wherein and the icon usefulness that ought explain in itself, but not in order to restriction the utility model.
The conductive shell of the utility model electronic cards is for utilizing the integrated three-dimensional conductive shell of pull, and it mainly comprises a body, and this body also includes an end face and several sides.These several sides are provided with several connecting portions, and this end face is defined as several corner portion with two adjacent positions that this side was connected.And have at least one vacancy portion on this corner portion, so just can avoid conductive shell in manufacture process, because of the pull sheet metal produces the situation that fracture or be full of cracks take place for corner portion that the stress reciprocation makes conductive shell.
See also Fig. 2 (A), it is the vertical view of conductive shell before moulding of the utility model first preferred embodiments.Shown in Fig. 2 (A), in conductive shell 2 as yet not before the moulding, it is a metallic plate, with planning one end face 21 and several sides 24 on the metallic plate, end face 21 then is defined as corner portion 23 with the part that per two adjacent sides 24 are connected, and establishes the vacancy portion 22 of a hole shape on corner portion 23 at a distance of the distance of W with end face 21.After metallic plate is through the pull moulding, can become the integrated conductive shell 2 shown in Fig. 2 (B), Fig. 2 (B) is the structural representation of the conductive shell of the utility model first preferred embodiment.Then, see also Fig. 2 (C), it is part 26 enlarged drawings of the corner portion 23 of conductive shell among Fig. 2 (B), wherein, because when sheet metal is subjected to pull, the vacancy portion 22 that is the hole shape has the space and can bear the stress that is transmitted by end face 21 and side 24 and push, therefore the corner portion 23 of conductive shell 2 can be because of after the pull moulding, the situation of fracture or be full of cracks takes place, and, has specific range W between vacancy portion 22 and the end face 21, when conductive shell 2 is desired plastic frame body (not shown) with electronic cards when combining, just can utilize the sheet metal conduct of this specific range W and the contact jaw of plastic frame body (not shown) fastening, again by imbed that ejaculation (INSERTMOLDING) is shaped or mode such as ultrasonic waves implantation make the partly plastic material of plastic frame body (not shown) be bonded to around this solid conductive shell 2 etc. in connecting portion and the vacancy portion 22, with the intensity that links between reinforced plastics framework (not shown) and the conductive shell 2, so, conductive shell 2 just can with plastic frame body (not shown) fluid-tight engagement.
Second preferred embodiment of the present utility model is put into practice in the mode of removing.It is the vertical view of conductive shell before moulding of the utility model second preferred embodiments to see also Fig. 3 (A).Shown in Fig. 3 (A), in conductive shell 2 as yet not before the moulding, with planning one end face 31 and several sides 34 on the metallic plate, end face 31 then is defined as corner portion 33 with the part that per two adjacent sides 34 are connected, on corner portion 33, remove with the metallic plate of end face 21 beyond the distance of W, and form the vacancy portion 32 of a quadrant, after metallic plate is through the pull moulding, just can become the integrated conductive shell 3 shown in Fig. 3 (B), Fig. 3 (B) is the conductive shell schematic diagram of the utility model second preferred embodiment, then, see also Fig. 3 (C), it is part 36 enlarged drawings of the corner portion 33 of conductive shell among Fig. 3 (B), in the local corner portion 35 of amplifying three-dimensional conductive shell 3, we can see except by on the corner portion 33 with the distance W of end face 21, the metallic plate of corner portion below 33 all is removed, and stays next vacancy portion 32.Wherein because vacancy portion 32 has the space can bear the stress that is transmitted by end face 31 and side 34 and push, therefore the corner portion 33 of conductive shell 3 can be because of after the pull moulding, the situation of fracture or be full of cracks takes place, and, has specific range W between vacancy portion 32 and the end face 31, when conductive shell 3 is desired plastic frame body (not shown) with electronic cards when combining, just can utilize the sheet metal conduct of this specific range W and the contact jaw of plastic frame body (not shown) fastening, again by imbed that ejaculation (INSERT MOLDING) is shaped or mode such as ultrasonic waves implantation make the partly plastic material of plastic frame body (not shown) be bonded to around this solid conductive shell 3 etc. in connecting portion and the vacancy portion 32, with the intensity that links between reinforced plastics framework (not shown) and the conductive shell 3, so, conductive shell 3 just can with plastic frame body (not shown) fluid-tight engagement.
The 3rd preferred embodiment of the present utility model is put into practice in the mode of cutting off.See also Fig. 4 (A), it is the vertical view of conductive shell before moulding of the utility model the 3rd preferred embodiments.Shown in Fig. 4 (A), in conductive shell 4 as yet not before the moulding, also with planning one end face 41 and several sides 44 on the metallic plate, end face 41 then is defined as corner portion 43 with the part that per two adjacent sides 44 are connected, be that corner portion 43 cuts off a right angle incision 42 at a distance of the distance of W in fact along end face frame line 45 dotted lines, when wherein being subjected to pull owing to sheet metal, right angle incision 42 has the space and can bear the stress that is transmitted by end face 41 and side 44 and push, therefore the corner portion 43 of conductive shell 4 can be because of after the pull moulding, the situation of fracture or be full of cracks takes place, and, has specific range W between right angle incision 42 and the end face 41, when conductive shell 4 is desired plastic frame body (not shown) with electronic cards when combining, just can utilize the sheet metal conduct of this specific range W and the contact jaw of plastic frame body (not shown) fastening, again by imbed that ejaculation (INSERT MOLDING) is shaped or mode such as ultrasonic waves implantation make the partly plastic material of plastic frame body (not shown) be bonded to around this solid conductive shell 4 etc. in connecting portion and the right angle incision 42, with the intensity that links between reinforced plastics framework (not shown) and the conductive shell 4, so, conductive shell 4 just can with plastic frame body (not shown) fluid-tight engagement.
The conductive shell of electronic cards of the present utility model is mainly used in safe digital card (secure digital card, SD CARD) or multimedia memory card (multimedia memory card, MMC CARD) small electronic card such as, certainly general common on the market electronic cards, for example dish, intelligent memory card, data card (modern card), network card (Local Area Network card, LAN card) and memory card (memory card) or the like also can be used technology of the present utility model with oneself.
In sum, the mode of the three-dimensional conductive shell utilization stretching metal material of the conductive shell of the utility model electronic cards forms, and several corner portion at this metallic plate are removed the metallic plate on several corner portion in the mode of perforate, removal or cut-out in advance before drawing process.After the pull moulding, again by imbed that ejaculation (INSERT MOLDING) is shaped or mode such as ultrasonic waves implantation make the partly plastic material of plastic frame body be bonded to around this solid conductive shell etc. in the hole of connecting portion and this perforate in advance, removal or cut-out, so not only can make three-dimensional conductive shell in the process that stretches, be not easy the phenomenon that chaps or rupture, and, prior, also can make the structure of three-dimensional conductive shell firm more and strengthen the mechanical strength and the anti-twist intensity of three-dimensional conductive shell than the conductive shell of prior art.
The utility model has further improved the known puzzlement of caving in, being out of shape or twisting because of slight external force easily with the made conductive shell of bending mode.On the other hand, improving conductive shell metal material sheet in the pull process causes the metal fracture or the be full of cracks easily of corner portion, and increases whole mechanical strength and anti-twist strength under the reciprocation of stress.In addition, also can make metal material sheet not because of the fracture that can't expect and the direction and the degree of be full of cracks, and cause the three-dimensional conductive shell of moulding can't imbed in the plastic frame body, cause the defective of electronic cards, in addition, also can improve the problem that causes cost to raise up because of substandard product.
The utility model is by the various modifications that personnel did of being familiar with this field, neither scope of taking off as the desire protection of appended claim institute.
Claims (10)
1. the conductive shell of an electronic cards is characterized in that it is formed in one, and comprises:
One body, it has an end face and several sides, is set at several corner portion with this end face with two adjacent positions that this side was connected, and has at least one vacancy portion on wherein at least one corner portion.
2. the conductive shell of electronic cards as claimed in claim 1 is characterized in that this vacancy portion forms the shape of perforate or right angle or quadrant in the mode of perforate on this corner portion, removal or cut-off parts metallic plate.
3. the conductive shell of electronic cards as claimed in claim 1 is characterized in that having a set distance between this end face of this vacancy portion and this body.
4. the conductive shell of electronic cards as claimed in claim 1 is characterized in that this electronic cards is a safe digital card, a multimedia memory card, a carry-on dish or an intelligent memory card.
5. the encapsulating structure of an electronic cards is characterized in that comprising:
The one three-dimensional conductive shell that stretches and to form by metallic plate, it has a body, wherein this body includes an end face and several sides, described several sides are provided with several connecting portions, and this end face is set at several corner portion with two adjacent positions that this side was connected, and has at least one vacancy portion on the corner portion; And
One plastic frame body, its partly plastic material are bonded to described connecting portion and this vacancy portion of this solid conductive shell, and are fixed in this solid conductive shell below, wherein have an accommodation space in this plastic frame body, the internal circuit unit of ccontaining this electronic cards.
6. the encapsulating structure of electronic cards as claimed in claim 5 is characterized in that this vacancy portion forms the shape of perforate or right angle or quadrant in the mode of perforate, removal or cut-off parts metallic plate on this corner portion.
7. the encapsulating structure of electronic cards as claimed in claim 5 is characterized in that having a set distance between this end face of this vacancy portion and this body.
8. the encapsulating structure of electronic cards as claimed in claim 5 is characterized in that a ccontaining circuit board in this accommodation space.
9. the encapsulating structure of electronic cards as claimed in claim 5 is characterized in that this electronic cards is a safe digital card, a multimedia memory card, a carry-on dish or an intelligent memory card.
10. the encapsulating structure of electronic cards as claimed in claim 8 is characterized in that this circuit board is a printed circuit board (PCB), and is laid with internal memory and/or electronic building brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074182 CN2736983Y (en) | 2004-09-22 | 2004-09-22 | Conduction shell of electronic card and packaging structure for same electronic card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420074182 CN2736983Y (en) | 2004-09-22 | 2004-09-22 | Conduction shell of electronic card and packaging structure for same electronic card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736983Y true CN2736983Y (en) | 2005-10-26 |
Family
ID=35307709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420074182 Expired - Fee Related CN2736983Y (en) | 2004-09-22 | 2004-09-22 | Conduction shell of electronic card and packaging structure for same electronic card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736983Y (en) |
-
2004
- 2004-09-22 CN CN 200420074182 patent/CN2736983Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |