WO2005011348A1 - Injector/ejector and shelf structure grounded to card frame ground - Google Patents

Injector/ejector and shelf structure grounded to card frame ground Download PDF

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Publication number
WO2005011348A1
WO2005011348A1 PCT/KR2004/001877 KR2004001877W WO2005011348A1 WO 2005011348 A1 WO2005011348 A1 WO 2005011348A1 KR 2004001877 W KR2004001877 W KR 2004001877W WO 2005011348 A1 WO2005011348 A1 WO 2005011348A1
Authority
WO
WIPO (PCT)
Prior art keywords
ejector
shelf
card
frame ground
grounded
Prior art date
Application number
PCT/KR2004/001877
Other languages
French (fr)
Inventor
Soo Yong Song
Original Assignee
Utstarcom Korea Limited
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 Utstarcom Korea Limited filed Critical Utstarcom Korea Limited
Priority to US10/561,058 priority Critical patent/US7252521B2/en
Publication of WO2005011348A1 publication Critical patent/WO2005011348A1/en

Links

Classifications

    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0256—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms
    • H05K5/0286—Receptacles therefor, e.g. card slots, module sockets, card groundings
    • H05K5/0291—Receptacles therefor, e.g. card slots, module sockets, card groundings for multiple cards
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
    • H05K7/1409—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by lever-type mechanisms
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1461—Slidable card holders; Card stiffeners; Control or display means therefor
    • 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
    • H05K9/0064—Earth or grounding circuit

Definitions

  • the present invention generally relates to an injector/ejector (in/ejector) and shelf structure grounded to a frame ground of a card. More particularly, the present invention is directed to an in/ejector and shelf structure in which a frame ground and the in/ejector have conductive materials and are grounded to a shelf, thereby allowing electromagnetic and electric waves generated in an electric or electronic device to be conducted outside.
  • Background Art
  • the electromagnetic and electric waves are conducted outside by connecting a guide supporter of the shelf to the frame ground of the card, and further connecting an inventive structure (i.e., coupling protrusions formed on the in/ejector) to finger strips formed on the guide supporter of the shelf.
  • an inventive structure i.e., coupling protrusions formed on the in/ejector
  • the in/ejector and shelf structure can conduct the electromagnetic and electric waves generated in the electric or electronic devices outside.
  • the in/ejector and shelf structure comprises: [6] a shelf having a frame, a guide rail and a guide supporter, wherein the frame and the guide rail are established at a given spacing in front and rear portions of upper and lower ends thereof, respectively, in order to provide a framework, and wherein the guide supporter has a common conductivity formed in an inside of both upper and lower parts thereof; [7] a card including a frame ground and a stiffener, wherein the frame ground having conductivity is formed on upper and bwer parts thereof, and wherein the stiffener having a rectangular shape is formed on a front part thereof, and wherein the card is mounted on the shelf; and [8] an in/ejector for fixing the card on the shelf, wherein said in/ejector is coupled to upper and lower parts of the stiffener and is grounded to the guide supporter and the frame ground.
  • FIG. 1 illustrates in/ejectors and cards of the present invention which are coupled to each other and are mounted on a shelf.
  • Fig. 2 is a cross-sectional view along line A- A' of Fig. 1 in which the in/ejector and shelf structure of the present invention are grounded to a frame ground of the card.
  • FIG. 3 illustrates an in/ejector and a guide supporter of the present invention.
  • FIG. 4 illustrates the coupling pattern between an in/ejector and a card of the present invention.
  • Fig. 5 illustrates a side view of the card coupled to the in/ejector of Fig. 2 prior to being mounted on a guide supporter of the shelf.
  • Fig. 6 illustrates a side view of the card coupled to the in/ejector of Fig. 2 that is mounted on a guide supporter of the shelf. Best Mode for Carrying Out the Invention
  • FIGs. 1 and 2 illustrate an in/ejector and shelf structure grounded to a frame ground of a card according to one embodiment of the present invention.
  • An in/ejector and shelf structure grounded to a frame ground of the present invention comprises a shelf 100, a card 200 and an in/ejector 300.
  • a shelf 100 has frames and guide rails in front and rear portions of upper and bwer ends thereof. Further, the frames and guide rails are established at a given spacing. Guide supporters 110 are formed on 4 corners of the shelf 100. The card 200 and in/ ejector 300 are grounded through the guide supporters 110.
  • the guide supporter 110 is comprised of a body 120, a finger strip 140 and a fixing protrusion 150.
  • ⁇ bdies 120 formed on 4 corners of shelf 100 make the frame ground 210 of card 200 and in/ejector 300 to be grounded.
  • the elastic finger strip 140 is shaped as 'c' and is formed in guide groove 130 of body 120. It fixes and grounds the in/ejector 300.
  • Fixing protrusion 150 is formed on one side of body 120 by a given size, and coupled to fixing groove 321 of in/ejector 300.
  • the card 200 is mounted on the shelf 100. This is achieved by the frame ground 210 having conductivity formed on upper and bwer parts of the card 200 and stiffener 220 having a rectangular shape formed on a front part thereof.
  • the frame ground 210 formed on the card 200 comes in contact with an upper part of the guide supporter 110 of shelf 100 so as to be grounded.
  • the stiffener 220 is coupled to a base 330 of the in/ejector 300 so as to be grounded.
  • the in/ejector 300 is coupled to the stiffener 220 of the card 200 so that the card becomes fixed on the shelf.
  • the in/ejector 300 is comprised of a bcker 310, a body 320 and a base 330.
  • a lever is formed on the upper part of the bcker 310 so that the card 200 can be self-erected vertically.
  • the body 320 is mounted beneath the bcker 310.
  • the fixing groove 321 formed on the bwer part of the body 320 is fixed to a fixing protrusion 150 of the body 320.
  • the base 330 is mounted on the body 320 and coupling protrusion 331, which has a given size formed on the bwer part of the base 330, is fixed to the finger strip 140 of the guide supporter 110. This is so that the base can be grounded.
  • the in/ejector 300 coupled to the card 200 should be pushed into the shelf 100 as shown in Fig. 5.
  • the conductive frame ground 210 formed in upper and lower parts of the card 200 is connected to an upper part of the body 120 of the guide supporter 110.
  • the guide supporter 110 has common conductivity an is formed in upper and bwer parts of the shelf 100.
  • a coupling protrusion 331 formed on a lower part of the base 330 of an in/ejector 300 is fixed to the finger strip 140 formed in guide groove 130 of the body 120, thereby being grounded.
  • the fixing groove 321 formed on a bwer part of the body 320 of an in/ejector 300 is fixed to the fixing protrusion 150 formed on one side of the body 120 of the guide supporter 110.
  • the frame ground 210 of the card 200 and in/ejector 300 are fixed to the guide supporter 110 of the shelf 100 and become grounded so that electromagnetic and electric waves generated in the card 200 can be conducted to the guide supporter 110 of shelf 100 through the frame ground 210.
  • an in/ejector and shelf structure grounded to a frame ground of a card of the present invention communication interference caused by unnecessary electromagnetic waves generated in the electronic device, electric waves of other types of devices and external electric waves can be reduced, thereby mitigating the loss of lives and property damage resulting from incorrect operations. Additionally, in conducting radiation test of EMI and static electricity radiation test among the adaptability test of electromagnetic wave for systems, electromagnetic waves can be reduced significantly so that the device can operate normally under static electricity when the frame grounds on various cards are conducted outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The present invention generally relates to an injector/ejector (in/ejector) and shelf structure grounded to a frame ground of a card, in which electromagnetic and electric waves generated in an electric or electronic device can be conducted outside. More specifically, the present invention comprises: a shelf having a frame, a guide rail and a guide supporter, wherein the frame and the guide rail are established at a given spacing in front and rear portions of upper and lower ends thereof, respectively, in order to provide a framework, and wherein the guide supporter has a common conductivity formed in an inside of both upper and lower parts thereof; a card including a frame ground and a stiffener, wherein the frame ground having conductivity is formed on upper and lower parts thereof, and wherein the stiffener having a rectangular shape is formed on a front part thereof, and wherein the card is mounted on the shelf; and an in/ejector for fixing the card on the shelf, wherein said in/ejector is coupled to upper and lower parts of the stiffener and is grounded to the guide supporter and the frame ground. According to the present invention, communication interference caused by unnecessary electromagnetic waves generated in the electronic device, electric wave of other devices and an external electric wave can be reduced, thereby mitigating the loss of lives and property damage resulting from incorrect operations. Additionally, in conducting radiation test of EMI and static electricity radiation test among the adaptability test of electromagnetic wave for systems, electromagnetic waves can be reduced significantly so that the device can operate normally under static electricity when the frame grounds on various cards are conducted outside.

Description

Description INJECTOR/EJECTOR AND SHELF STRUCTURE GROUNDED TO CARD FRAME GROUND Technical Field
[1] The present invention generally relates to an injector/ejector (in/ejector) and shelf structure grounded to a frame ground of a card. More particularly, the present invention is directed to an in/ejector and shelf structure in which a frame ground and the in/ejector have conductive materials and are grounded to a shelf, thereby allowing electromagnetic and electric waves generated in an electric or electronic device to be conducted outside. Background Art
[2] With the rapid devebpments in semiconductor and digital technologies, electric and electronic devices, as wel as intelgence devices, became much more functional and miniaturized. However, those devices often react to minute interferences caused by electromagnetic waves and thus operate poorly. Therefore, in order to ensure that the device performs optimally and achieve product reliability, there is a need in the art for a method of conducting the electromagnetic waves, which are generated in the electric and electronic devices, outside. Disclosure of Invention Technical Problem
[3] When conducting radiation test of EMI and static electricity radiation test among the adaptability test of electromagnetic wave for systems, the frame grounds on various cards cannot be conducted outside. Additionally, since the portion coupling each card to the shelf is shorted, the card cannot be grounded. Technical Solution
[4] It is, therefore, an objective of the present invention to provide an in/ejector and a shelf structure grounded to a frame ground of a card. According to the in/ejector and shelf structure of the present invention, the electromagnetic and electric waves are conducted outside by connecting a guide supporter of the shelf to the frame ground of the card, and further connecting an inventive structure (i.e., coupling protrusions formed on the in/ejector) to finger strips formed on the guide supporter of the shelf.
[5] The in/ejector and shelf structure according to the present invention can conduct the electromagnetic and electric waves generated in the electric or electronic devices outside. The in/ejector and shelf structure comprises: [6] a shelf having a frame, a guide rail and a guide supporter, wherein the frame and the guide rail are established at a given spacing in front and rear portions of upper and lower ends thereof, respectively, in order to provide a framework, and wherein the guide supporter has a common conductivity formed in an inside of both upper and lower parts thereof; [7] a card including a frame ground and a stiffener, wherein the frame ground having conductivity is formed on upper and bwer parts thereof, and wherein the stiffener having a rectangular shape is formed on a front part thereof, and wherein the card is mounted on the shelf; and [8] an in/ejector for fixing the card on the shelf, wherein said in/ejector is coupled to upper and lower parts of the stiffener and is grounded to the guide supporter and the frame ground. Advantageous Effects
[9] According to the present invention comprising an in/ejector and a shelf structure grounded to a frame ground of a card, communication interference caused by unnecessary electromagnetic waves generated in the electronic device, electric waves of other types of devices and external electric waves can be reduced, thus mitigating the loss of lives and property damage resulting from incorrect operations. Brief Description of the Drawings
[10] These drawings depict only the preferred embodiments of the present invention and should not be considered as limitations of its scope. These as wel as other features of the present invention wil become more apparent upon reference to the drawings in which:
[11] Fig. 1 illustrates in/ejectors and cards of the present invention which are coupled to each other and are mounted on a shelf.
[12] Fig. 2 is a cross-sectional view along line A- A' of Fig. 1 in which the in/ejector and shelf structure of the present invention are grounded to a frame ground of the card.
[13] Fig. 3 illustrates an in/ejector and a guide supporter of the present invention.
[14] Fig. 4 illustrates the coupling pattern between an in/ejector and a card of the present invention.
[15] Fig. 5 illustrates a side view of the card coupled to the in/ejector of Fig. 2 prior to being mounted on a guide supporter of the shelf.
[16] Fig. 6 illustrates a side view of the card coupled to the in/ejector of Fig. 2 that is mounted on a guide supporter of the shelf. Best Mode for Carrying Out the Invention
[17] N)w, referring to the attached drawings, an in/ejector and shelf structure grounded to a frame ground of a card according to one embodiment of the present invention wil be described.
[18] Figs. 1 and 2 illustrate an in/ejector and shelf structure grounded to a frame ground of a card according to one embodiment of the present invention. An in/ejector and shelf structure grounded to a frame ground of the present invention comprises a shelf 100, a card 200 and an in/ejector 300.
[19] A shelf 100 has frames and guide rails in front and rear portions of upper and bwer ends thereof. Further, the frames and guide rails are established at a given spacing. Guide supporters 110 are formed on 4 corners of the shelf 100. The card 200 and in/ ejector 300 are grounded through the guide supporters 110.
[20] Moreover, as shown in Fig. 3, the guide supporter 110 is comprised of a body 120, a finger strip 140 and a fixing protrusion 150. Ξbdies 120 formed on 4 corners of shelf 100 make the frame ground 210 of card 200 and in/ejector 300 to be grounded.
[21] The elastic finger strip 140 is shaped as 'c' and is formed in guide groove 130 of body 120. It fixes and grounds the in/ejector 300.
[22] Fixing protrusion 150 is formed on one side of body 120 by a given size, and coupled to fixing groove 321 of in/ejector 300.
[23] As shown in Fig. 4, the card 200 is mounted on the shelf 100. This is achieved by the frame ground 210 having conductivity formed on upper and bwer parts of the card 200 and stiffener 220 having a rectangular shape formed on a front part thereof. The frame ground 210 formed on the card 200 comes in contact with an upper part of the guide supporter 110 of shelf 100 so as to be grounded. The stiffener 220 is coupled to a base 330 of the in/ejector 300 so as to be grounded.
[24] Moreover, the in/ejector 300 is coupled to the stiffener 220 of the card 200 so that the card becomes fixed on the shelf. The in/ejector 300 is comprised of a bcker 310, a body 320 and a base 330.
[25] A lever is formed on the upper part of the bcker 310 so that the card 200 can be self-erected vertically.
[26] The body 320 is mounted beneath the bcker 310. The fixing groove 321 formed on the bwer part of the body 320 is fixed to a fixing protrusion 150 of the body 320. The base 330 is mounted on the body 320 and coupling protrusion 331, which has a given size formed on the bwer part of the base 330, is fixed to the finger strip 140 of the guide supporter 110. This is so that the base can be grounded.
[27] Referring now to Figs. 5 and 6, the method of coupling an in/ejector to a shelf structure according to one embodiment of the present invention, as depicted above, wl be described below.
[28] First, in order to mount the card 200 on the shelf 100, the in/ejector 300 coupled to the card 200 should be pushed into the shelf 100 as shown in Fig. 5.
[29] Then, in the card 200 and in/ejector 300 mounted in the shelf (shown in Fig. 6), the conductive frame ground 210 formed in upper and lower parts of the card 200 is connected to an upper part of the body 120 of the guide supporter 110. The guide supporter 110 has common conductivity an is formed in upper and bwer parts of the shelf 100.
[30] Additionally, a coupling protrusion 331 formed on a lower part of the base 330 of an in/ejector 300 is fixed to the finger strip 140 formed in guide groove 130 of the body 120, thereby being grounded. The fixing groove 321 formed on a bwer part of the body 320 of an in/ejector 300 is fixed to the fixing protrusion 150 formed on one side of the body 120 of the guide supporter 110.
[31] Therefore, the frame ground 210 of the card 200 and in/ejector 300 are fixed to the guide supporter 110 of the shelf 100 and become grounded so that electromagnetic and electric waves generated in the card 200 can be conducted to the guide supporter 110 of shelf 100 through the frame ground 210.
[32] Few embodiments of the present invention are described herein. However, the present invention is not limited to those embodiments and various modifications can be conducted within the spirit of the present invention. Industrial Applicability
[33] According to an in/ejector and shelf structure grounded to a frame ground of a card of the present invention, communication interference caused by unnecessary electromagnetic waves generated in the electronic device, electric waves of other types of devices and external electric waves can be reduced, thereby mitigating the loss of lives and property damage resulting from incorrect operations. Additionally, in conducting radiation test of EMI and static electricity radiation test among the adaptability test of electromagnetic wave for systems, electromagnetic waves can be reduced significantly so that the device can operate normally under static electricity when the frame grounds on various cards are conducted outside.

Claims

Claims
[1] An in/ejector and shelf structure grounded to a frame ground of a card, said structure comprising: a shelf having a frame, a guide rail and a guide supporter, wherein the frame and the guide rail are established at a given spacing in front and rear portions of upper and bwer ends thereof, and wherein the guide supporter has a common conductivity formed in an inside of both upper and lower parts thereof; a card including a frame ground and a stiffener, wherein the frame ground having conductivity is formed on upper and bwer parts thereof, and wherein the stiffener having a rectangular shape is formed on a front part thereof, and wherein the card is mounted on the shelf; and an in/ejector for fixing the card on the shelf, wherein the in/ejector is coupled to upper and bwer parts of the stiffener and is grounded to the guide supporter and the frame ground.
[2] The in/ejector and shelf structure grounded to the frame ground of the card according to daim 1, wherein the guide supporter comprises: a body formed on the upper and bwer ends of the shelf and having a guide groove, the guide groove causing the frame ground of the card embedded on the shelf and the in/ejector to be grounded; a finger strip having elasticity formed on the guide groove and shaped as 'c', the finger strip fixing the in/ejector on the guide groove and causing the in/ejector to be grounded ; and a fixing protrusion formed on one side of the body having a prescribed size, wherein the in/ejector is coupled to the fixing protrusion.
[3] The in/ejector and shelf structure grounded to the frame ground of the card according to daim 1, wherein the in/ejector comprises: a bcker having a lever formed on the upper part thereof, wherein the lever causes the card to be vertically self-erectable on the shelf; a body mounted on the lower part of the bcker having a fixing groove shaped as a groove on the bwer part thereof, wherein the body is fixed to the guide supporter having the fixing protrusion; and a base established on one side of the lower part of the body having a coupling protrusion on the bwer part thereof, wherein the base causes the guide supporter having the finger strip to be grounded .
PCT/KR2004/001877 2003-07-25 2004-07-26 Injector/ejector and shelf structure grounded to card frame ground WO2005011348A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/561,058 US7252521B2 (en) 2003-07-25 2004-07-26 Injector/ejector and shelf structure grounded to card frame ground

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20030051476A KR101044697B1 (en) 2003-07-25 2003-07-25 The self assy of in/ejector earthed to card frame ground
KR10-2003-0051476 2003-07-25

Publications (1)

Publication Number Publication Date
WO2005011348A1 true WO2005011348A1 (en) 2005-02-03

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PCT/KR2004/001877 WO2005011348A1 (en) 2003-07-25 2004-07-26 Injector/ejector and shelf structure grounded to card frame ground

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WO (1) WO2005011348A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6570318B2 (en) * 2015-05-28 2019-09-04 アズビル株式会社 Board unit lock structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5779061A (en) * 1995-11-07 1998-07-14 Daewoo Telecom Ltd. Shelf frame for use in a rack for storing a communication system
KR19980034597A (en) * 1996-11-08 1998-08-05 정장호 Electromagnetic shielding structure of the front panel of electronic communication equipment
KR20000014135A (en) * 1998-08-14 2000-03-06 서평원 Blank front plate for shelf of electric communication apparatus
KR20000009380U (en) * 1998-11-03 2000-06-05 서평원 Ground Finger Device for Shelf for Electronic Communication Equipment
JP2002111271A (en) * 2000-09-29 2002-04-12 Matsushita Electric Ind Co Ltd Shelf shield structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030010453A (en) * 2001-07-24 2003-02-05 이기만 Positive displacement pump having a pair of pumping chambers and method of assembling thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5779061A (en) * 1995-11-07 1998-07-14 Daewoo Telecom Ltd. Shelf frame for use in a rack for storing a communication system
KR19980034597A (en) * 1996-11-08 1998-08-05 정장호 Electromagnetic shielding structure of the front panel of electronic communication equipment
KR20000014135A (en) * 1998-08-14 2000-03-06 서평원 Blank front plate for shelf of electric communication apparatus
KR20000009380U (en) * 1998-11-03 2000-06-05 서평원 Ground Finger Device for Shelf for Electronic Communication Equipment
JP2002111271A (en) * 2000-09-29 2002-04-12 Matsushita Electric Ind Co Ltd Shelf shield structure

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Publication number Publication date
KR20050012495A (en) 2005-02-02
KR101044697B1 (en) 2011-06-28

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