Electronic device and connector attachment / detachment method

Abstract

An electronic device, etc. that can contribute to improving the ease of removal of a blade from a rack. [Solution] The electronic device comprises a blade having a front plate and a first connector fixed to an electronic board, a rack having a second connector fixed to it that is connected and conductive to the first connector, and a screw for fixing the blade to the rack, wherein the screw has a retaining ring attached to the male threaded portion, the front plate has a through hole through which the male threaded portion is inserted and is sandwiched between the head of the screw and the retaining ring, and an internal plate having a screw hole that screws into the male threaded portion is fixed to the rack, and the head of the screw is screwed into the screw hole to press the front plate against the inside of the rack and insert the first connector into the second connector, and the retaining ring is loosened to remove the screw from the screw hole to press the front plate against the outside of the rack and remove the first connector from the second connector.

Description

[Technical field]

[0001] The present invention relates to an electronic device and a method for attaching and detaching a connector. [Background technology]

[0002] There is an electronic device (electronic equipment) in which a blade (circuit unit) is stored in a slot (opening) of a rack (housing), a connector on the back of the blade is attached (connected) to a connector in the rack, and a screw is inserted through a through hole in a plate fixed to the blade and screwed into a screw hole in a plate fixed to the rack to fix the blade to the rack. In such an electronic device, a connector with multiple cores and strong coupling force is likely to be selected, so in Patent Document 1, a screw hole is provided in a position other than the through hole in the plate fixed to the blade, and when removing the blade from the rack, the screw fixing the blade to the rack is temporarily removed and the screw is screwed into the screw hole in the plate fixed to the blade, so that the tip of the screw presses against a surface other than the screw hole in the plate fixed to the rack, and the blade is moved relative to the rack, so that the connector of the blade can be removed (disconnected) from the connector in the rack. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-027248 Summary of the Invention [Problem to be solved by the invention]

[0004] The following analysis is provided by the present inventors.

[0005] However, in the electronic device of Patent Document 1, when removing the blade from the rack, the screws must be completely removed from the blade and the rack, which increases the number of work steps and there is a risk of the screws being dropped and lost, making it difficult to improve workability.

[0006] A primary object of the present invention is to provide an electronic device and a connector attachment / detachment method that can contribute to improving the workability when removing a blade from a rack. [Means for solving the problem]

[0007] An electronic device according to a first aspect includes a front plate fixed to a front surface of an electronic board, a blade having a first connector fixed to the electronic board, a rack having at least one slot for storing the blade and having a second connector fixed thereto, the second connector being electrically connected to the first connector when the blade is stored, and a screw for fixing the blade to the rack, the screw having a male threaded portion extending axially from a head and a retaining ring attached to the male threaded portion so as to prevent it from moving axially, the front plate having a through hole through which the male threaded portion is inserted and being sandwiched between the head and the retaining ring at a peripheral portion of the through hole, An internal plate having a screw hole that screws into the male threaded portion inserted into the through hole when the blade is stored in the slot is fixed to the rack, and the head is configured such that when the screw is screwed into the screw hole, the front peripheral portion of the through hole in the front plate is pressed against the inside of the rack, electrically connecting and mechanically fastening the first connector to the second connector, and the retaining ring is configured such that when the screw is loosened to remove it from the screw hole, the rear peripheral portion of the through hole in the front plate is pressed against the outside of the rack, electrically disconnecting the first connector from the second connector and mechanically removing it.

[0008] A connector attaching / detaching method according to a second aspect is a connector attaching / detaching method for attaching / detaching a first connector and a second connector in an electronic device including a front plate fixed to a front surface of an electronic board, a blade having a first connector fixed to the electronic board, a rack having at least one slot for accommodating the blade and having a second connector fixed thereto, the second connector being connected and conductive when the blade is accommodated, and a screw for fixing the blade to the rack, wherein the screw has a male threaded portion extending axially from a head thereof, and a retaining ring is attached to the male threaded portion so as to be immovable in the axial direction, the front plate has a through hole through which the male threaded portion is inserted, and the through hole is fixed to the male threaded portion by a retaining ring. The first connector is sandwiched between the head and the retaining ring at the periphery of the hole, and an internal plate having a screw hole that screws into the male threaded portion inserted into the through hole when the blade is stored in the slot is fixed to the rack, and the method of attaching and detaching the connector involves screwing the screw into the screw hole, causing the head to press the front side peripheral portion of the through hole in the front plate against the inside of the rack, electrically connecting and mechanically inserting the first connector to the second connector, and loosening the screw to remove it from the screw hole, causing the retaining ring to press the rear side peripheral portion of the through hole in the front plate against the outside of the rack, electrically disconnecting the first connector from the second connector and mechanically removing it. Effect of the Invention

[0009] The first and second aspects can contribute to improving the ease of removal of the blade from the rack. [Brief description of the drawings]

[0010] [Figure 1] 1 is a front view showing a schematic example of a configuration of an electronic device according to the present disclosure. [Diagram 2] 2 is a cross-sectional view illustrating an example of a configuration of an electronic device according to the present disclosure, taken along the line XX' in FIG. 1, when a blade is fixed to a rack. [Diagram 3]2 is a cross-sectional view illustrating an example of a configuration of an electronic device according to the present disclosure, taken along line XX' in FIG. 1, when a blade is being removed from a rack. [Figure 4] FIG. 2 is a perspective view showing a schematic example of a configuration of a blade in an electronic device according to the present disclosure. [Diagram 5] 1A is a plan view showing a schematic diagram of an example of a blade configuration in an electronic device according to the present disclosure, and FIG. 1B is a cross-sectional view taken along line YY'. [Figure 6] 13A and 13B are cross-sectional views illustrating the operation of a second example of the configuration of an electronic device according to the present disclosure, in which (A) is a cross-sectional view illustrating when a blade is fixed to a rack, and (B) is a cross-sectional view illustrating when the blade is removed from the rack. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described with reference to the drawings. Note that when reference symbols are used in this application, they are intended to aid understanding only and are not intended to limit the present invention to the illustrated embodiments. In addition, the following embodiments are merely examples and do not limit the present invention.

[0012] [Form 1] The electronic device according to the first embodiment will be described with reference to the drawings. FIG. 1 is a front view showing a schematic example of the configuration of the electronic device according to the present disclosure. FIG. 2 is a cross-sectional view showing a blade fixed to a rack, corresponding to the X-X' section in FIG. 1 showing a schematic example of the configuration of the electronic device according to the present disclosure. FIG. 3 is a cross-sectional view showing a blade removed from a rack, corresponding to the X-X' section in FIG. 1 showing a schematic example of the configuration of the electronic device according to the present disclosure. FIG. 4 is a perspective view showing a schematic example of the configuration of a blade in the electronic device according to the present disclosure. FIG. 5 shows (A) a plan view and (B) a cross-sectional view along the Y-Y' section showing a schematic example of the configuration of a blade in the electronic device according to the present disclosure.

[0013] The electronic device 1 is a device that performs a predetermined operation by controlling the flow of electrons and charged particles in a built-in circuit (see Figs. 1 to 3). The electronic device 1 is configured so that the blade 10 can be detachably stored in a slot 30a of a rack 30. The electronic device 1 has a mechanism that allows the connector 13 on the back of the blade 10 to be detachably attached to a connector 36 in the rack 30 using a screw 20 and a retaining ring 21. The electronic device 1 is configured such that by inserting the screw 20 into the through hole 11a of the front plate 11 of the blade 10 and screwing it into the screw hole 32a of the inner plate 32 of the rack 30 (e.g., rotating it clockwise), the head 20a of the screw 20 presses the front peripheral portion of the through hole 11a of the front plate 11 against the inside of the rack 30, thereby mechanically fixing the blade 10 to the rack 30 and electrically connecting and mechanically attaching the connector 13 of the blade 10 to the connector 36 of the rack 30 (see Figure 2). The electronic device 1 is configured such that, by loosening the screw 20 (for example, rotating it counterclockwise) so as to remove it from the screw hole 32a of the inner plate 32 of the rack 30, the retaining ring 21 attached (fixed) to the screw 20 so as not to move in the axial direction presses the rear side peripheral portion of the through hole 11a of the front plate 11 against the outside of the rack 30, thereby mechanically removing the blade 10 from the rack 30 and electrically disconnecting the connector 13 of the blade 10 from the connector 36 of the rack 30 and mechanically removing it (see FIG. 3). The electronic device 1 includes the blade 10, the screw 20, the retaining ring 21, and the rack 30.

[0014] The blade 10 is a blade-shaped (long, thin) electronic unit (see Figs. 1 to 5). The blade 10 is configured so as to be able to be housed in a slot 30a of a rack 30. For example, the blade 10 may be an additional electronic unit such as an additional interface board (an additional LAN (Local Area Network) board in Fig. 1), an additional hard disk, an additional memory board, an additional graphics board, or the like. The blade 10 includes a front plate 11, an electronic board 12, and a connector 13.

[0015] The front plate 11 is a plate-shaped (plate-shaped) member (see Figs. 1 to 5). The front plate 11 is configured to close the slot 30a of the rack 30 when the blade 10 is stored in the slot 30a of the rack 30. The front side of the front plate 11 is configured as the exterior of the electronic device 1. The rear side of the front plate 11 is configured to be fixed to the end of the front side of the electronic board 12. The front plate 11 has a through hole 11a penetrating in the attachment / detachment direction (sliding direction) of the blade 10 in a part not overlapping with the electronic board 12 in the center part in the longitudinal direction. The through hole 11a is a through hole configured to insert the male thread part 20b of the screw 20. There may be at least one through hole 11a. The front plate 11 is arranged so as to be sandwiched between the head 20a of the screw 20 and a retaining ring 21 attached to the screw 20 at the peripheral part of the through hole 11a. The front side peripheral portion of the through hole 11a of the front plate 11 is pressed against the inside of the rack 30 by the head 20a of the screw 20 when the screw 20 is screwed into the screw hole 32a of the inner plate 32 of the rack 30 (for example, rotated clockwise). The rear side peripheral portion of the through hole 11a of the front plate 11 is pressed against the outside of the rack 30 by the retaining ring 21 attached (fixed) to the screw 20 so as not to move in the axial direction when the screw 20 is loosened (for example, rotated counterclockwise) so as to remove it from the screw hole 32a of the inner plate 32 of the rack 30.

[0016] The electronic board 12 is a circuit board on which various electronic components are mounted (see Figs. 2 to 5). A connector 13 is mounted (fixed) on the rear side of the electronic board 12. The electronic board 12 may have a connector section (not shown) at the rear end of the electronic board 12 itself, without having the external connector 13. The front end of the electronic board 12 is fixed to the front plate 11. The left and right ends of the electronic board 12 are supported by guide members 34 of the rack 30 so as to be slidable in the front-rear direction.

[0017] The connector 13 is a component for detachably connecting and conducting with the connector 36 of the rack 30 (see Figs. 2 to 5). The connector 13 is mounted (fixed) on a portion on the rear side of the electronic board 12. The connector 13 is configured to be electrically connected to and mechanically inserted into the connector 36 of the rack 30 when the blade 10 is stored in the slot 30a of the rack 30. The connector 13 is configured to be electrically disconnected from and mechanically removed from the connector 36 of the rack 30 when the blade 10 is removed from the slot 30a of the rack 30. The connector 13 may be omitted if the electronic board 12 itself has a connector portion (not shown) at the end on the rear side.

[0018] The screw 20 is a mechanical part in which a male screw portion 20b extends in the axial direction from a flange-shaped head portion 20a (see Figs. 1 to 5). The head portion 20a is configured so that a tool (e.g., a screwdriver, a wrench, etc.) can be attached to the surface opposite to the male screw portion 20b to rotate it. The head portion 20a may be configured so that it can be turned by pinching it with fingers, and may be, for example, a thumb screw, a knurled screw, etc. The male screw portion 20b is configured to screw into a screw hole 32a of an inner plate 32 of the rack 30. The head portion 20a is configured so that the front side peripheral portion of the through hole 11a of the front plate 11 is pressed against the inside of the rack 30 by screwing (e.g., rotating clockwise) the male screw portion 20b of the screw 20 so as to screw into the screw hole 32a of the inner plate 32 of the rack 30. The male screw portion 20b has a groove portion 20c at a predetermined position in the axial direction (thrust direction). The groove portion 20c is a groove-shaped portion recessed in the radial direction. The groove portion 20c is configured so that the retaining ring 21 is attached (fixed) so as not to move in the axial direction. Note that the groove portion 20c may not be provided if the retaining ring 21 is configured so as to be directly fixed to the male thread portion 20b.

[0019] The retaining ring 21 is a ring-shaped member attached (fixed) to the groove portion 20c of the screw 20 so as to be immovable in the axial direction (see Figs. 2 to 5). For example, an E-ring, a C-ring, a snap ring, a push nut, or the like can be used as the retaining ring 21. The retaining ring 21 may be configured to be directly fixed to the male thread portion 20b. The retaining ring 21 is configured to press the rear side peripheral portion of the through hole 11a of the front plate 11 against the outside of the rack 30 by loosening the screw 20 so as to remove it from the screw hole 32a of the inner plate 32 of the rack 30 (for example, by rotating it counterclockwise).

[0020] The rack 30 is a device that detachably houses the blades 10 (see FIGS. 1 to 3). The rack 30 has at least one slot 30a (four in FIG. 1) that opens on the front side. The slot 30a houses the blades 10 so that they can be inserted and removed from the rack 30. The rack 30 includes a main body 31, an internal plate 32, screws 33, a guide member 34, a backboard 35, and a connector 36.

[0021] The main body 31 is a structure that detachably houses the blade 10 (see Figs. 1 to 3). For example, a housing, a frame, etc. can be used as the main body 31. An internal plate 32, screws 33, a guide member 34, a backboard 35, and a connector 36 are built into the inside of the main body 31.

[0022] The internal plate 32 is a plate-like member fixed to the inside of the main body 31 by screws 33 (see Figs. 1 to 3). The internal plate 32 is disposed at the center in the longitudinal direction of the opening of the slot 30a inside the main body 31. The internal plate 32 has a screw hole 32a that can be screwed into the male threaded portion 20b of the screw 20 attached to the blade 10 when the blade 10 is stored in the rack 30.

[0023] The guide members 34 are members that support both left and right ends of the electronic board 12 of the blade 10 inserted through the slot 30a so as to be slidable in the front-rear direction (see FIGS. 1 to 3). The guide members 34 are fixed to the inside of the main body 31.

[0024] The backboard 35 is a circuit board fixed near the rear surface inside the main body 31 (see Figs. 1 to 3). A connector 36 is mounted (fixed) on the backboard 35 and configured to be electrically connected to the connector 13 of the blade 10 and to be mechanically inserted when the blade 10 is stored in the rack. The connector 36 may be fixed to the main body 31.

[0025] 2, when the blade 10 is stored in the rack 30, the screw 20 inserted in the through hole 11a of the front plate 11 of the blade 10 is turned, for example, clockwise with a tool (not shown) so that the male threaded portion 20b of the screw 20 screws into the screw hole 32a of the inner plate 32 of the rack 30, and the screw 20 moves inwardly of the rack 30. Accordingly, the head 20a of the screw 20 presses the front side peripheral portion of the through hole 11a of the front plate 11 of the blade 10 into the inner side of the rack 30, and the axial force of this pressing mechanically fixes the blade 10 to the rack 30, and the connector 13 of the blade 10 is electrically connected to the connector 36 in the rack 30 and mechanically inserted therein.

[0026] On the other hand, when removing the blade 10 from the rack 30, as shown in Fig. 3, when the screw 20 inserted into the through hole 11a of the front plate 11 of the blade 10 is turned, for example, counterclockwise with a tool (not shown), the male threaded portion 20b of the screw 20 loosens so as to come out of the screw hole 32a of the inner plate 32 of the rack 30, and the screw 20 moves to the outside of the rack 30. Accordingly, the retaining ring 21 attached (fixed) to the screw 20 so as not to be able to move in the axial direction presses the rear side peripheral portion of the through hole 11a of the front plate 11 against the outside of the rack 30, and the axial force caused by this pressing mechanically removes the blade 10 from the rack 30, and the connector 13 of the blade 10 is electrically disconnected from the connector 36 of the rack 30 and is mechanically removed.

[0027] According to form 1, when removing the blade 10 from the rack 30, simply by loosening the screw 20 fixing the blade 10 to the rack 30, the retaining ring 21 attached (fixed) to the screw 20 so as to be unable to move axially will press the rear side peripheral portion of the through hole 11a of the front plate 11 against the outside of the rack 30, and the blade 10 will be mechanically removed from the rack 30. At the same time, the connector 13 of the blade 10 will be electrically disconnected from the connector 36 of the rack 30 and will be mechanically removed. This reduces the number of work steps and eliminates the risk of dropping and losing the screw 20, thereby contributing to improved operability when removing the blade 10 from the rack 30.

[0028] Furthermore, according to form 1, even if the connector 13 of the blade 10 and the connector 36 in the rack 30 are selected to be multi-core and have a strong coupling force, when attaching or detaching the blade 10 to or from the rack 30, the screw 20 with the retaining ring 21 can be turned with a tool, making it possible to easily attach or detach the connector 13 of the blade 10 from the connector 36 in the rack 30 without putting any strain on the fingers.

[0029] Furthermore, according to form 1, when attaching or detaching the blade 10 to or from the rack 30, the screw 20 with the retaining ring 21 can be turned with a tool to easily attach or detach the connector 13 of the blade 10 from the connector 36 in the rack 30. This eliminates the need to provide the blade 10 with a knob, handle, or other handle that would protrude from the exterior, and does not impair the exterior design.

[0030] Furthermore, according to form 1, by arranging the screws 20 through the through holes 11a in the longitudinal center of the front plate 11 to make it easier to transmit the axial force of the screws 20 to the attachment and detachment of the connectors 13, 36, the number of screws 20 per blade 10 can be reduced, thereby reducing costs and improving workability.

[0031] [Form 2] The electronic device according to the second embodiment will be described with reference to the drawings. Fig. 6 is a cross-sectional view showing the operation of a second example of the configuration of the electronic device according to the present disclosure, in which (A) is a cross-sectional view showing when the blade is fixed to the rack, and (B) is a cross-sectional view showing when the blade is removed from the rack.

[0032] The electronic device 1 is configured to removably store the blade 10 in a slot 30a of a rack 30. The electronic device 1 includes the blade 10, the rack 30, and a screw 20. The blade 10 is configured such that a front plate 11 is fixed to the front of an electronic board 12, and a first connector 13 is fixed to the electronic board 12. The rack 30 has at least one slot 30a for storing the blade 10, and is configured to have a second connector 36 fixed thereto, which is connected and conductive to the first connector 13 when the blade 10 is stored. The screw 20 is configured to fix the blade 10 to the rack 30.

[0033] The screw 20 has a male threaded portion 20b extending from the head 20a in the axial direction, and a retaining ring 21 is attached to the male threaded portion 20b so as to be immovable in the axial direction. The front plate 11 has a through hole 11a through which the male threaded portion 20b is inserted, and is sandwiched between the head 20a and the retaining ring 21 at the periphery of the through hole 11a. An inner plate 32 is fixed to the rack 30, and has a screw hole 32a that screws with the male threaded portion 20b inserted in the through hole 11a when the blade 10 is stored in the slot 30a. The head 20a is configured to press the front side periphery of the through hole 11a of the front plate 11 against the inside of the rack 30 by screwing the screw 20 into the screw hole 32a, electrically connecting the first connector 13 to the second connector 36 and mechanically inserting and fastening it. The retaining ring 21 is configured such that, when the screw 20 is loosened so as to remove it from the screw hole 32a, the rear side peripheral portion of the through hole 11a of the front plate 11 is pressed against the outside of the rack 30, thereby electrically disconnecting the first connector 13 from the second connector 36 and mechanically removing it.

[0034] According to form 2, when removing the blade 10 from the rack 30, simply by loosening the screw 20 fixing the blade 10 to the rack 30, the retaining ring 21 attached (fixed) to the screw 20 so as to be unable to move axially will press the rear peripheral portion of the through hole 11a of the front plate 11 against the outside of the rack 30, and the blade 10 will be mechanically removed from the rack 30. At the same time, the connector 13 of the blade 10 will be electrically disconnected from the connector 36 of the rack 30 and will be mechanically removed. This reduces the number of work steps, eliminates the risk of dropping and losing the screw 20, and contributes to improving the workability when removing the blade 10 from the rack 30.

[0035] Some or all of the above aspects may be described as follows, but are not limited to the following:

[0036] [Appendix 1] a blade having a front plate fixed to a front surface of an electronic board and a first connector fixed to the electronic board; a rack having at least one slot for storing the blade, and a second connector fixed thereto, the second connector being connected and conductive to the first connector when the blade is stored; a screw for fastening the blade to the rack; Equipped with The screw has a male thread portion extending in the axial direction from a head portion, and a retaining ring is attached to the male thread portion so as to be immovable in the axial direction, the front plate has a through hole through which the male screw portion is inserted, and is sandwiched between the head and the retaining ring at a peripheral portion of the through hole, an internal plate having a screw hole that screws into the male screw portion inserted into the through hole when the blade is stored in the slot, the head portion is configured to press a front peripheral portion of the through hole of the front plate against the inside of the rack by screwing the screw into the screw hole, thereby electrically connecting and mechanically attaching the first connector to the second connector; the retaining ring is configured to press a rear side peripheral portion of the through hole of the front plate against the outside of the rack by loosening the screw so as to remove the screw from the screw hole, thereby electrically disconnecting the first connector from the second connector and mechanically removing the first connector from the second connector. electronic equipment. [Appendix 2] the head is configured to electrically connect and mechanically insert the first connector to the second connector and mechanically fix the blade to the rack by screwing the screw into the screw hole; the retaining ring is configured to electrically disconnect and mechanically remove the first connector from the second connector and mechanically remove the blade from the rack by loosening the screw from the screw hole. 2. The electronic device of claim 1. [Appendix 3] The through hole is disposed in a portion of the longitudinal center of the front plate that does not overlap with the electronic board. 3. The electronic device according to claim 1 or 2. [Appendix 4] The first connector is a connector portion disposed at an end portion on the rear side of the electronic board itself. 4. An electronic device according to any one of claims 1 to 3. [Appendix 5] The head is configured to mount and rotate a tool. 5. An electronic device according to any one of claims 1 to 4. [Appendix 6] The head is configured to be pinched and turned by fingers. 5. An electronic device according to any one of claims 1 to 4. [Appendix 7] The male screw portion has a groove portion recessed in a radial direction at a predetermined position in the axial direction, The groove portion is configured so that the retaining ring is mounted so as to be immovable in the axial direction. 7. An electronic device according to any one of claims 1 to 6. [Appendix 8] The retaining ring is an E-ring, a C-ring, or a snap ring that is attached to the groove. 8. The electronic device of claim 7. [Appendix 9] The retaining ring is configured to be directly fixed to the male thread portion. 7. An electronic device according to any one of claims 1 to 6. [Appendix 10] a guide member is fixed to the rack, the guide member supporting both left and right end portions of the electronic board of the blade inserted through the slot so as to be slidable in the front-rear direction; 10. An electronic device according to any one of claims 1 to 9. [Appendix 11] A backboard is fixed to the inside of the rack, The second connector is fixed to the backboard. 11. An electronic device according to any one of claims 1 to 10. [Appendix 12] a blade having a front plate fixed to a front surface of an electronic board and a first connector fixed to the electronic board; a rack having at least one slot for storing the blade, and a second connector fixed thereto, the second connector being connected and conductive to the first connector when the blade is stored; a screw for fastening the blade to the rack; A connector attaching / detaching method for attaching / detaching the first connector and the second connector in an electronic device comprising: The screw has a male thread portion extending in the axial direction from a head portion, and a retaining ring is attached to the male thread portion so as to be immovable in the axial direction, the front plate has a through hole through which the male screw portion is inserted, and is sandwiched between the head and the retaining ring at a peripheral portion of the through hole, an internal plate having a screw hole that screws into the male screw portion inserted into the through hole when the blade is stored in the slot, The connector attaching / detaching method includes: By screwing the screw into the screw hole, the head presses the front peripheral portion of the through hole of the front plate against the inside of the rack, electrically connecting and mechanically inserting the first connector into the second connector; By loosening the screw so as to remove it from the screw hole, the retaining ring presses the rear side peripheral portion of the through hole of the front plate against the outside of the rack, electrically disconnecting the first connector from the second connector and mechanically removing them. How to attach and detach the connector. [Appendix 13] By screwing the screw into the screw hole, the first connector is electrically connected to and mechanically inserted into the second connector, and the blade is mechanically fixed to the rack; loosening the screw so as to remove it from the screw hole, thereby electrically disconnecting and mechanically removing the first connector from the second connector, and mechanically removing the blade from the rack; A method for attaching and detaching a connector as described in Appendix 12.

[0037] The disclosure of Patent Document 1 is incorporated herein by reference and may be used as the basis or part of the present invention as necessary. Within the framework of the entire disclosure of the present invention (including the claims and drawings), and further based on the basic technical idea, modifications and adjustments of the forms and embodiments are possible. Furthermore, within the framework of the entire disclosure of the present invention, various combinations or selections (or non-selection as necessary) of various disclosed elements (including each element of each claim, each element of each form or embodiment, each element of each drawing, etc.) are possible. In other words, the present invention naturally includes various modifications and corrections that a person skilled in the art would be able to make according to the entire disclosure, including the claims and drawings, and the technical idea. Furthermore, with regard to the numerical values ​​and numerical ranges described in this application, any intermediate value, lower numerical value, and small range are deemed to be described even if not specified. Furthermore, the disclosures of the above cited documents may be used in part or in whole in combination with the descriptions in this document as part of the disclosure of the present invention as necessary, in accordance with the spirit of the present invention, and are deemed to be included (belong) to the disclosures of this application. [Explanation of symbols]

[0038] 1 Electronic equipment 10 Blades 11 Front plate 11a Through hole 12 Electronic Board 13 Connector (First Connector) 20 Screws 20a head 20b Male thread part 20c Groove 21 Retaining ring 30 racks 30a Slot 31 Main unit 32 Internal Plate 32a screw hole 33 Screw 34 Guide member 35 Backboard 36 Connector (2nd Connector)

Claims

1. a blade having a front plate fixed to a front surface of an electronic board and a first connector attached to a rear surface of the electronic board; a rack having at least one slot for storing the blade, and a second connector fixed thereto, the second connector being connected and conductive to the first connector when the blade is stored; a screw for fastening the blade to the rack; Equipped with The screw has a male thread portion extending in the axial direction from a head portion, and a retaining ring is attached to the male thread portion so as to be immovable in the axial direction, the front plate has a through hole through which the male screw portion is inserted, and is sandwiched between the head and the retaining ring at a peripheral portion of the through hole, an internal plate having a screw hole that screws into the male screw portion inserted into the through hole when the blade is stored in the slot, the head portion is configured such that, by screwing the screw into the screw hole, a front side peripheral portion of the through hole of the front plate is pressed against the inside of the rack, and a rear side peripheral portion of the through hole of the front plate is brought into direct contact with the retaining ring, thereby electrically connecting and mechanically inserting the first connector into the second connector; the retaining ring is configured to press a rear side peripheral portion of the through hole of the front plate against the outside of the rack by loosening the screw so as to remove the screw from the screw hole, thereby electrically disconnecting the first connector from the second connector and mechanically removing the first connector from the second connector. electronic equipment.

2. the head is configured to electrically connect and mechanically insert the first connector to the second connector and mechanically fix the blade to the rack by screwing the screw into the screw hole; the retaining ring is configured to electrically disconnect and mechanically remove the first connector from the second connector and mechanically remove the blade from the rack by loosening the screw from the screw hole.

2. The electronic device of claim 1.

3. The through hole is disposed in a portion of the longitudinal center of the front plate that does not overlap with the electronic board.

2. The electronic device of claim 1.

4. The head is configured to mount and rotate a tool.

2. The electronic device of claim 1.

5. The male screw portion has a groove portion recessed in a radial direction at a predetermined position in the axial direction, The groove portion is configured so that the retaining ring is mounted so as to be immovable in the axial direction.

2. The electronic device of claim 1.

6. The retaining ring is an E-ring, a C-ring, or a snap ring that is attached to the groove.

6. The electronic device of claim 5.

7. a guide member is fixed to the rack, the guide member supporting both left and right end portions of the electronic board of the blade inserted through the slot so as to be slidable in the front-rear direction; 2. The electronic device of claim 1.

8. A backboard is fixed to the inside of the rack, The second connector is fixed to the backboard.

2. The electronic device of claim 1.

9. a blade having a front plate fixed to a front surface of an electronic board and a first connector attached to a rear surface of the electronic board; a rack having at least one slot for storing the blade, and a second connector fixed thereto, the second connector being connected and conductive to the first connector when the blade is stored; a screw for fastening the blade to the rack; 1. A method for attaching and detaching a first connector and a second connector in an electronic device comprising: The screw has a male thread portion extending in the axial direction from a head portion, and a retaining ring is attached to the male thread portion so as to be immovable in the axial direction, the front plate has a through hole through which the male screw portion is inserted, and is sandwiched between the head and the retaining ring at a peripheral portion of the through hole, an internal plate having a screw hole that screws into the male screw portion inserted into the through hole when the blade is stored in the slot, The connector attaching / detaching method includes: By screwing the screw into the screw hole, the head presses the front side peripheral portion of the through hole of the front plate against the inside of the rack, and the rear side peripheral portion of the through hole of the front plate and the retaining ring are brought into direct contact with each other, thereby electrically connecting and mechanically inserting the first connector into the second connector; By loosening the screw so as to remove it from the screw hole, the retaining ring presses the rear side peripheral portion of the through hole of the front plate against the outside of the rack, electrically disconnecting the first connector from the second connector and mechanically removing them. How to attach and detach the connector.

10. By screwing the screw into the screw hole, the first connector is electrically connected to and mechanically inserted into the second connector, and the blade is mechanically fixed to the rack; loosening the screw so as to remove it from the screw hole, thereby electrically disconnecting and mechanically removing the first connector from the second connector, and mechanically removing the blade from the rack; 10. The connector attachment / detachment method according to claim 9.

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