KR20160032392A - Shield Clips fixing shield covers - Google Patents

Shield Clips fixing shield covers Download PDF

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Publication number
KR20160032392A
KR20160032392A KR1020140122275A KR20140122275A KR20160032392A KR 20160032392 A KR20160032392 A KR 20160032392A KR 1020140122275 A KR1020140122275 A KR 1020140122275A KR 20140122275 A KR20140122275 A KR 20140122275A KR 20160032392 A KR20160032392 A KR 20160032392A
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KR
South Korea
Prior art keywords
elastic
shield
piece
constituting
cover
Prior art date
Application number
KR1020140122275A
Other languages
Korean (ko)
Inventor
박영주
이건묵
Original Assignee
오-토스프라이스 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 오-토스프라이스 주식회사 filed Critical 오-토스프라이스 주식회사
Priority to KR1020140122275A priority Critical patent/KR20160032392A/en
Publication of KR20160032392A publication Critical patent/KR20160032392A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/0009—Casings with provisions to reduce EMI leakage through the joining parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
    • H05K9/0035—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids with retainers mounted beforehand on the PCB, e.g. clips

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The present invention relates to a shield clip for fixing an electronic component cover. The shield clip is configured to allow a shield cover, covering an electronic component to block malfunction caused by an electromagnetic wave generated by an electronic component installed in a printed circuit board (PCB), to be easily attached to and detached from the PCB. In addition, the shield clip can minimize damage to a component during an attachment/detachment process. According to the present invention, provided is the shield clip for fixing an electronic component cover configured to form a second elastic piece (22) which is extended on an upper portion of a first elastic piece (21), constituting an elastic fixing unit (20) bent to an inner side, and lowered in order to firmly and stably fix a side plate unit (201) of the shield cover (200) inserted into the second elastic piece (22) due to improved elasticity of the second elastic piece (22).

Description

Shield Clips fixing shield covers [

The present invention can firmly and easily attach and detach a shield cover mounted on a printed circuit board to cover an electronic component in order to shield electromagnetic interference generated from an electronic component installed on a printed circuit board (PCB) And at the same time to minimize the damage of the parts upon detachment.

In general, electromagnetic waves are useful as wireless communication or radar, but they can adversely affect the operation of electronic devices. This phenomenon is called electromagnetic interference (EMI) phenomenon. Such electromagnetic interference phenomenon causes noise But also harmful to the human body.

Therefore, in recent years, electronic parts such as semiconductor devices mounted on a printed circuit board provided inside an electronic device are covered with a predetermined shield cover to prevent the electromagnetic interference phenomenon generated from the electronic parts, This prevents the device and other electronic devices from affecting operation. The shield cover is shaped like a box with the bottom open to cover the electronic components.

The shield cover is installed such that the shield plate is inserted into a plurality of upwardly-facing elastic pieces of the shield clip fixed on the printed circuit board, and the shield plate is fixed to the inserted side plate.

In the prior art for achieving this object, a plurality of upwardly-directed elastic pieces are formed from the base of the shield clip, and a shield cover side plate inserted into the elastic piece is inserted in the prior art 10-2011-0045153. In order to more firmly support the side plate And a pressing projection for pressing the inserted side plate projecting inward in the elastic piece.

The pressing protrusion having such a configuration has a disadvantage in that it is accompanied by a step of punching work for constituting the protrusion, and the contact surface is small and the fixing force can not be improved.

In addition, Japanese Patent Application No. 10-1088890 discloses a press-fitting unit which is formed of a plurality of elastic piece portions on a base portion fixed to a printed circuit board, is cut into an incision portion inside the elastic piece portion and is positioned in the elastic piece portion to be bent from the base to exhibit elasticity And the side plate of the shield cover inserted into the elastic piece portion is pressed by the elasticity exhibited by the pressing portion, so that a firmer fastening force is exerted.

In this technique, although the inward elastic part formed by the cutting part forms more contact surfaces, the pressing part is formed by the elastic part, while the elastic part of the elastic part formed before and after the pressing part lowers the fixing force.

In order to solve the above-mentioned problems, the Japanese Patent Application No. 10-1133189 discloses a shield clip including a fixing portion and a clamping portion, wherein the shielding portion includes an outwardly facing chamber and a bending portion, A plurality of clamping portions are formed so as to face each other and a pressing piece cut to the incision portion at a position opposite to the elastic piece constituting the clamping portion is formed so as to press the side plate of the shield cover inserted into the clamping portion, have.

Such a technique can not separate the shield cover due to the fastening bolt that is pressed by the pressing piece shield plate side plate and is fastened to the side plate.

Therefore, when the printed circuit board (PCB: printed circuit board) in the shield cover is to be repaired, the shield cover can not be removed.

Published patent application No. 10-2011-0045153 Patent No. 10-1088890 Patent No. 10-1133189

The problem to be solved by the present invention is to solve the problems of difficulty in tightening and weakening of elasticity after fastening when the upper clips are formed only on the opposite sides of the shield clip, And to improve the shield clips so that they can be prevented from being separated by a solid support and easy to manufacture.

A shield clip (100) for detaching and attaching a shield cover (200) for shielding electromagnetic interference generated from an electronic component (220) installed on a printed circuit board (PCB) The first elastic piece 21 constituting the elastic fixing part 20 upward from the base part 10 constituting the fixing piece 11 formed at both ends of the outer side and the front part of the center part is composed of a plurality of elastic cords (20)

A second elastic piece 22 extending from the upper portion of the first elastic piece 21 constituting the elastic fixing part 20 and being bent inward and then being downwardly directed is formed so that the elasticity of the second elastic piece 22, The side plate portion 201 of the shield cover 200 sandwiched between the elastic pieces 22 can be more firmly and stably fixed,

A plurality of elastic fixing parts 20 having the first and second elastic pieces 21 and 22 are fixed to the elastic fixing parts 20 constituting the first elastic piece 21 by varying the height of the front and back elastic fixing parts 20 (20), each of the first and second elastic pieces (21, 21, 22) being divided into a dividing groove (30)

And a pressing piece 32 bent downward from the inner side by extending the upper end of the partition plate 31 at a position spaced apart from the partition plate 31,

A pressing portion 33 protruding inwardly from the partitioning plate 31 at a position spaced apart from the partitioning plate 31 and a side plate portion 201 of the shielding cover 200 fitted into the elastic fixing portion 20 A shield cover 200 constituting a retaining piece 202 cut outwardly,

Any one of the second elastic piece 22, the pressing piece 32 and the crimping portion 33 is engaged with the latch piece 202 cut outwardly from the side plate portion 201 of the shield cover 200, And the cover 200 is structured such that it can not be easily detached even in the event of an impact or the like.

The shield clip improved by the solution of the present invention has a double elastic part which is formed by bending the first elastic part on both sides of the clip to improve the elastic function so that more firm contact and holding force, The effect of preventing separation and prevention of slippage in the impact and the conveyance due to the firmness due to the crimped portion,

And the shield cover can be easily and easily inserted into the shield clip, so that the operation can be easily performed, and the automatic and quick operation can be achieved.

In addition, the present invention can mount EMI / RFI (Electro Magnetic Interference / Request For Information) shields on shielded clips mounted on a PCB instead of directly inserting shield clips into holes formed in a printed circuit board, Lt; / RTI >

The shield clip is designed to be compact, allowing compatible tapes and reels to be mounted on standard high-speed mounting equipment, and can be placed anywhere on the PCB, eliminating the need for additional holes, reducing the required PCB area, Reliable shield clips with spring contacts provide the effect of being detachable for rework or circuit tuning.

Accordingly, the present invention eliminates the need for inserting the EMI / RFI shield into a printed circuit board, facilitates compatibility with standard high-speed mounting equipment, facilitates detachment of shields, reduces the area of the PCB, , So that four independent finger spring contacts can be increased.

1 is a perspective view of a shield clip according to a first embodiment of the present invention;
Fig. 2 (a) is a sectional view of the shield clip shown in Fig. 1 with a shield cover inserted therein.
Fig. 2 (b) is a cross-sectional view of the shield clip of Fig. 1 in engagement with the engagement piece formed on the side plate of the shield cover; Fig.
3 is a perspective view of a shield clip according to a second embodiment of the present invention;
4 (a) is a cross-sectional view of the shield clip shown in Fig. 3 with a shield cover inserted therein;
Fig. 4 (b) is a sectional view of the shield clip of Fig. 3 in engagement with the engagement piece formed on the side plate of the shield cover; Fig.
5 is a perspective view of a shield clip according to a third embodiment of the present invention;
6 (a) is a cross-sectional view of the shield clip shown in Fig. 5 with a shield cover inserted therein;
6 (b) is a cross-sectional view of the shield clip of FIG. 5 in engagement with the engagement piece formed on the side plate of the shield cover.
7 is a perspective view of a shield clip of a fourth embodiment of the present invention.
8 (a) is a cross-sectional view of the shield clip shown in Fig. 7 with a shield cover inserted therein;
Fig. 8 (b) is a cross-sectional view of the shield clip of Fig. 7 in engagement with the engagement piece formed on the side plate of the shield cover; Fig.
9 is an explanatory diagram of a use state of the present invention.

9, in order to shield an electromagnetic interference generated from an electronic component 220 installed on a printed circuit board (PCB) 210, the electronic component 220 is covered with a printed circuit It is possible to easily attach / detach the shield cover 200 provided on the board 210 to the printed circuit board 210 and to minimize the damage of the components upon detachment,

The shield clip 100 is designed to be compact and to be compatible with standard high speed mounting equipment, easy to deploy, and robust with independent spring contacts.

The present invention will now be described in more detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2 (a) and 2 (b), the first embodiment of the present invention includes a fixing piece 11 formed at both outer ends of the base 10 and in front and rear of the center,

The first elastic piece 21 constituting the elastic fixing part 20 upward from the base part 10 to both sides of the fixing part 11 of the central part is constituted by a plurality of elastic fixing parts 20 constituted corresponding to front and rear sides, A clip (100) is constructed,

A second elastic piece 22 extending from the upper portion of the first elastic piece 21 constituting the elastic fixing part 20 and being bent inward and then being downwardly directed is formed so that the elasticity of the second elastic piece 22, The shield clip 100 of the first embodiment configured to more firmly and stably fix the side plate portion 201 of the shield cover 200 sandwiched between the elastic pieces 22,

As shown in Figs. 3 and 4 (a) and 4 (b), the second embodiment includes a plurality of elastic fixing portions 20 having the first and second elastic pieces 21 and 22 in the first embodiment, , ≪ / RTI &

The plurality of elastic fixing portions 20 are formed such that the height of the front and rear elastic fixing portions 20 is varied and the end of the second elastic piece 22 is maintained in a direction inward toward the first elastic piece 21 The shield clip 100 of the second embodiment,

As shown in Figs. 5 and 6 (a) and 6 (b), the third embodiment is different from the first embodiment in that each of the first elastic members 21 constituting the plurality of elastic fixing parts 20 constituting the first elastic piece 21 of the first embodiment A partition plate 31 on both sides divided by dividing grooves 30 inwardly directed toward the center of the upper end of the piece 21,

The upper end of the partition plate 31 spaced apart from each other in the partitioning plate 31 is extended to constitute the pressing piece 32 bent downward from the inside direction, The shield clip 100 of the third embodiment configured to more firmly and stably fix the side plate portion 201 of the shield cover 200 fitted into the shield plate 200,

As shown in Figs. 7 and 8 (a) and 8 (b), the fourth embodiment is different from the first embodiment in that each of the first elastic members 21 constituting the plurality of elastic fixing parts 20 constituting the first elastic piece 21 of the first embodiment And a partitioning plate (31) on both sides divided by dividing grooves (30) inwardly directed to the center of the upper end of the piece (21)

A pressing portion 33 protruding inward in the partitioning plate 31 at a position spaced apart from the partitioning plate 31 is formed and the side plate portion 201 of the shielding cover 200 fitted into the pressing portion 33 The shield clip 100 of the fourth embodiment is configured to be more firmly and stably fixed.

2 (b), 4 (b), 6 (b), and 8 (b) of the above embodiment, as shown in FIG. 2, are inserted into the elastic fixing portions 20 of the first, second, The shield cover 200 constituting the latch piece 202 cut outwardly to the side plate portion 201 of the shield cover 200 to be fitted is applied to the second elastic piece 22 of the embodiment of the present invention, The shield cover 200 and the crimping portion 33 are engaged with the engaging pieces 202 that are cut outwardly from the side plate portion 201 of the shield cover 200 so that the shield cover 200 is not easily detached It is possible to satisfy the action effect.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The present invention is installed in the printed circuit board 210 so that the electronic component 220 is covered so as to shield the electromagnetic interference generated from the electronic component 220 installed on the PCB 210 It is possible to easily attach / detach the shield cover 200 to / from the printed circuit board 210 and to minimize the damage of the components upon detachment, and the shield clip 100 is designed to be small in size, Ease of placement, and robustness by independent spring contacts.

That is, instead of soldering to the printed circuit board, the present invention can mount EMI / RFI (Electro Magnetic Interference / Request For Information) shield cover 200 on shielded clip 100 mounted on PCB, And the shield clip 100 is designed to be compact so that tapes and reels compatible with standard high-speed mounting equipment can be mounted and placed anywhere on the PCB, eliminating the need for additional holes, The PCB area can be reduced and reliable shielding clips having independent spring contacts can be detached and attached for rework or circuit tuning. In addition, the shielding clips on the printed circuit board 210, compared to the conventional shielding clips, The area occupied by the clip 100 is not increased, and is installed vertically downward with respect to the base portion 10.

Therefore, the shield cover 100 is mounted in a more rigid state than when assembled with the printed circuit board, and the shield cover fixed to the shield clip 100 is maintained in a stable state, thereby achieving a stable equilibrium state after completion of the packaging process.

As shown in FIGS. 1 and 2 (a), the first embodiment of the present invention can be applied to a shield clip 100 mounted on the printed circuit board 210 and to a printed circuit board 210, The first elastic piece 21 constituting the elastic fixing part 20 of the mounted shield clip 100 and the second elastic piece 21 extending from the upper part of the first elastic piece 21, (201) of the shield cover (200) inserted between the second elastic pieces (22) of the elastic fixing part (20) of the side plate part (201) Can be more firmly and stably fixed by the increased elasticity of the first and second elastic pieces 21 and 22.

As shown in Figs. 3 and 4 (a), the second embodiment is constituted by a plurality of elastic fixing parts 20 having the first and second elastic pieces 21 and 22 in the first embodiment The side plate portion 201 of the shield cover 200 inserted between the second elastic pieces 22 can be easily and externally caught by the plurality of elastic fixing portions 20 by varying the height of the front and rear elastic fixing portions 20, So that the fitting operation can be easily performed and the failure can be prevented and the end of the second elastic piece 22 can be kept in the direction inward of the first elastic piece 21, It is possible to prevent detachment due to impact, movement, or the like by engaging with the engaging piece 202 that is cut outwardly in the side plate portion 201 of the cover 200. [

As shown in Figs. 5 and 6A, the third embodiment is different from the first embodiment in that each of the first elastic pieces 21 constituting the plurality of elastic fixing parts 20 constituting the first elastic piece 21 of the first embodiment 21 and the dividing plate 31 on both sides separated by dividing grooves 30 which are inwardly directed toward the center of the upper end of the dividing plate 31. The upper end of the dividing plate 31 spaced apart from the dividing plates 31 is extended, So that the pressing piece 32 can be firmly and stably fixed to the side plate portion 201 of the shield cover 200 fitted into the elastic fixing portion 20 As shown in Figs. 7 and 8 (a) in the third and fourth embodiments, the first and second elastic fasteners 20 constituting the first elastic piece 21 of the first embodiment (31) divided into dividing grooves (30) that are inwardly directed toward the center of the upper end of the first elastic piece (21), and the separating plates (31) It is possible to constitute the pressing portion 33 protruding inward in the partitioning plate 31 so that the side plate portion 201 of the shield cover 200 fitted into the pressing portion 33 can be more firmly and stably fixed The effect of the shield clip 100 of the fourth embodiment can be enhanced.

2 (b), 4 (b), 6 (b) and 8 (b) of the above-described embodiment, as shown in the drawings, When the shield cover 200 constituting the latch piece 202 that is cut outwardly in the side plate portion 201 of the shield cover 200 fitted into the second elastic piece 22 of the embodiment of the present invention is applied, The pressing piece 32 and the crimping portion 33 are engaged with the engaging piece 202 that is cut outwardly from the side plate portion 201 of the shield cover 200 so that the shield cover 200 can be easily detached It is possible to satisfy the action and effect of the embodiment.

9, the shield clip 100 according to the present invention can be assembled to the printed circuit board 210 in a state more rigid than the conventional shield clip 100. Thus, on the printed circuit board 210, And a shield cover 200 for shielding EMI generated by the electronic component 220 is installed on the outer side of the electronic component 3. [

The shield cover 200 is detachably coupled to the printed circuit board 210 to facilitate fixing and separation. The shield cover 200 can be detached and fixed by fixing the shield cover 200 according to the present embodiment The shield clip 100 can be used.

The shield cover 200 is integrally formed on the four side plate portions 201 and has a rectangular parallelepiped box shape with its lower end opened to cover the electronic component 220 in a state of being housed therein. ) May be formed of a plated steel sheet or the like for effective electromagnetic shielding.

The shield clip 100 for fixing the shield cover 200 is firmly assembled to the printed circuit board 210 and the shield cover 200 is stably fixed so that the electronic component 220 can be easily packed And increases the area of the shield clip 100 to be soldered to the printed circuit board 210 so that the shield clip 100 can be more strongly coupled to the printed circuit board 210.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

10: base part 11: fixing piece 20: elastic fixing part
21: first elastic piece 22: second elastic piece 30: split groove
31: partition plate 32: pressure piece 33:
100: shield clip 200: shield cover 201: side plate portion
202: latching piece 210: printed circuit board 220: electronic part

Claims (5)

A shield clip (100) for detachably attaching a shield cover (200) for shielding electromagnetic interference generated from an electronic component (220) installed on a printed circuit board (PCB) (210) A plurality of elastic fixing parts 20 constituted by the first elastic pieces 21 constituting the elastic fixing part 20 upward from the base part 10 constituting the fixing piece 11 are constituted so as to correspond to each other,
A second elastic piece 22 extending from the upper portion of the first elastic piece 21 constituting the elastic fixing part 20 and being bent inward and then being downwardly directed is formed so that the elasticity of the second elastic piece 22, And the side plate portion (201) of the shield cover (200) sandwiched between the elastic pieces (22) can be more firmly and stably fixed.
The method according to claim 1,
A plurality of elastic fixing parts (20) having the first and second elastic pieces (21, 22)
Wherein the elastic fixing part (20) has a height difference between the front and rear elastic fixing parts (20).
The method according to claim 1,
A partition plate 31 on both sides divided into division grooves 30 inwardly toward the center of the upper end of each first elastic piece 21 constituting the elastic fixing part 20 constituting the first elastic piece 21,
The upper end of the partition plate 31 spaced apart from each other in the partitioning plate 31 is extended to constitute the pressing piece 32 bent downward from the inside direction, , And the side plate portion (201) of the shield cover (200) fitted into the cover (200) can be more firmly and stably fixed.
The method according to claim 1,
The partitioning plates 31 are divided into dividing grooves 30 which are inwardly directed toward the center of the upper end of each first elastic piece 21 constituting the plurality of elastic fixing parts 20 constituting the first elastic piece 21, Respectively,
A pressing portion 33 protruding inward in the partitioning plate 31 at a position spaced apart from the partitioning plate 31 is formed and the side plate portion 201 of the shielding cover 200 fitted into the pressing portion 33 ) Of the electronic component (1) is more firmly and stably fixed.
The method according to any one of claims 1 to 4,
A shield cover 200 constituting an engaging piece 202 cut outwardly in a side plate portion 201 of the shield cover 200 fitted into the elastic fixing portion 20,
Any one of the second elastic piece 22, the pressing piece 32 and the crimping portion 33 is engaged with the latch piece 202 cut outwardly from the side plate portion 201 of the shield cover 200, And the cover (200) is configured not to be easily detached from an impact or the like.
KR1020140122275A 2014-09-15 2014-09-15 Shield Clips fixing shield covers KR20160032392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140122275A KR20160032392A (en) 2014-09-15 2014-09-15 Shield Clips fixing shield covers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140122275A KR20160032392A (en) 2014-09-15 2014-09-15 Shield Clips fixing shield covers

Publications (1)

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KR20160032392A true KR20160032392A (en) 2016-03-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112672629A (en) * 2020-12-30 2021-04-16 昆山嘉丰盛精密电子有限公司 Seamless microcrystal chip shielding cover
CN113645826A (en) * 2021-09-14 2021-11-12 合肥移瑞通信技术有限公司 Shielding case and electronic equipment
KR20210157143A (en) * 2020-06-19 2021-12-28 유성원 Upper and lower incision hygiene mask

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210157143A (en) * 2020-06-19 2021-12-28 유성원 Upper and lower incision hygiene mask
CN112672629A (en) * 2020-12-30 2021-04-16 昆山嘉丰盛精密电子有限公司 Seamless microcrystal chip shielding cover
CN113645826A (en) * 2021-09-14 2021-11-12 合肥移瑞通信技术有限公司 Shielding case and electronic equipment

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