JP2014116447A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device that is able to prevent electrical shock and electrical short circuit by securely removing a power source cord when a cover is detached, and that makes it easy to detach a panel from a body.SOLUTION: By a slide movement in a rear face direction when the plug part 4a of a power source cord 4 is fixed to a plug fixing part 3e provided on a cover 3 and the cover 3 is detached from the body 1, a power source cord 4 is forcibly removed from an AC inlet 1p provided on the body 1. When a panel 2 is attached to the cover 3, a guide fitting panel guide fitting 3c, with which main fixing pawl 2i, serving an elastic body, is engaged to deform. Thereby, the main fixing pawl 2i is returned in a disengaging direction while interlocking with a slide operation in a rear face direction when the cover 3 is detached from the body 1.

Description

  The present invention relates to an electronic device, and more particularly to an electronic device provided with an electric shock prevention mechanism when disassembled.

  Electronic devices such as computers and communication devices generally have an AC inlet in the main body, and power is supplied by fitting a power cord to the AC inlet. In some cases, these electronic devices may be repaired or the like by opening the chassis cover or the front / back panel for maintenance. If the maintenance worker removes the cover while power is supplied to the electronic device and performs the work, there is a risk of an electric shock accident or a short-circuit accident. In order to prevent such an electric shock accident and a short-circuit accident, Patent Document 1 discloses a technique in which a power cord is passed through a hole provided in the cover, and the cover cannot be removed unless the power cord or the like is removed from the casing.

  The attachment / detachment mechanism described in Patent Document 1 is a state in which a cover having a penetration portion of a power cord connected to the connection portion is inserted into the penetration portion with respect to a main body portion having a connection portion of the power cord. Detachable mechanism that can be locked together and can be arbitrarily separated, and is configured between the main body and the cover. A second direction that allows movement of the connected power cord in the first direction along the longitudinal direction, is orthogonal to the first direction, and is prevented from moving due to interference of the power cord connected to the connecting portion. Separation from the main body is made possible by moving to.

  On the other hand, in an electronic device such as a computer or a communication device, a panel may be attached to the front of the main body in order to improve the design. Patent Document 2 discloses a technique of engaging with a fixing claw as a panel mounting method.

JP 2011-138984 A JP 2012-035633 A

  In Patent Document 1, the cover can be slid by a certain amount in a state where the power cord is fitted to the AC inlet, and a part of the inside of the electronic device is exposed. Therefore, an electric shock accident and a short-circuit accident cannot be completely prevented. In addition, in the case of an electronic device such as an electronic device such as a computer or a communication device provided with a front panel, a part of the electronic board on which sensors and buttons are mounted is exposed at a position where the front panel is removed. There is. Even in the case of such an electronic device, it may be considered that the front panel is removed without removing the power cord and the maintenance work similar to the above is performed.

  Furthermore, in the method of attaching the front panel as disclosed in Patent Document 2, when removing the panel fixed by the hooking structure of the fixed claw, the work of pressing down the fixed claw and releasing the engagement is complicated. Further, in the case of a large-sized front panel, a plurality of fixing claws are required, and it is difficult to release the engagement at the same time.

  The present invention has been made in view of the above. When the cover is removed, the power cord becomes an obstacle, and the cover cannot be removed unless the power cord is removed from the main body. It is an object of the present invention to provide a mechanism in which a front panel can be easily removed when a cover is removed after being removed from.

  In the electronic device of the present invention, the plug portion of the power cord is locked to the plug fixing portion provided in the cover, and the power cord is forcibly provided in the main body by the rearward sliding operation when removing the cover from the main body. Removed from the inlet.

  In addition, when mounting the panel to the cover, by providing a guide bracket panel guide bracket that deforms the fixed claw, which is an elastic body, in the direction in which it is engaged, it interlocks with the rearward sliding operation when removing the cover from the main body. Thus, the plurality of fixed pawls can return to the direction of disengagement, and a plurality of them can be disengaged simultaneously.

  The above-described problem is an electronic device including a main body including an AC inlet and a casing cover having a plug fixing portion that locks a plug of a power cord to be inserted into the AC inlet. When the housing cover is removed from the main body by sliding on the main body in the insertion direction, the plug fixing portion is moved by the electronic device that removes the plug from the AC inlet. Can be achieved.

  Further, the electronic device includes a main body having a panel fixing hole, a panel having an elastic claw, and a housing cover having a guide fitting, and the panel inserts the elastic claw into the panel fixing hole, The housing cover is attached to the main body by sliding on the main body in the direction of inserting the power cord, and the guide fitting can be achieved by an electronic device that deforms the elastic claws by sliding and attaches the panel to the main body. .

  According to the present invention, since the power cord is forcibly removed from the AC inlet when the cover is removed, the AC power can be shut off before the inside of the electronic device is exposed.

  Further, the panel cannot be removed unless the cover is removed, and the panel can be easily detached after the power cord is removed from the main body by the operation of removing the cover.

It is a perspective view of an electronic device. It is a disassembled perspective view of an electronic device. 3 is a detailed perspective view of a panel attachment portion 1a and a cover attachment portion 1r of the main body 1. FIG. 3 is a detailed rear perspective view of the panel 2. FIG. It is a detailed mounting sectional view (before engagement) of the lower fixing claw 2a and the lower panel fixing hole 1b. It is attachment detailed sectional drawing (after engagement) of the lower fixing claw 2a and the lower panel fixing hole 1b. It is a detailed side view (before engagement) of the temporary fixing claw 2d and the temporary fixing hole 1e. It is a detailed side view (contact start) of temporary fixing claw 2d and temporary fixing hole 1e. It is a detailed side view (at the time of a deformation | transformation) of the temporary fixing claw 2d and the temporary fixing hole 1e. It is a detailed side view (after engagement) of temporary fixing claw 2d and temporary fixing hole 1e. It is a detailed side view after inserting the main fixing claw 2i into the main fixing hole 1i. 4 is a detailed rear perspective view of the cover 3. FIG. It is a cover attachment detailed perspective view (before a slide). It is a cover attachment detailed perspective view (after a slide). It is detailed sectional drawing (before engagement) of this fixed claw 2i, this fixed hole 1i, and the panel guide metal fitting 3c. It is detailed sectional drawing (contact start) of this fixed nail | claw 2i, this fixed hole 1i, and the panel guide metal fitting 3c. It is detailed sectional drawing (after engagement) of this fixed claw 2i, this fixed hole 1i, and the panel guide metal fitting 3c. It is a detailed back surface perspective view of the plug fixing | fixed part 3e. 3 is a detailed perspective view of a power cord 4. FIG. It is a detailed back perspective view of the AC inlet 1b after the cover 3 is attached. It is the detailed back surface perspective view (after fitting) of the power plug 4a fitting state. It is sectional drawing of a fitting state. It is a back surface perspective view in the state where power supply cord 4 was attached to plug fixing part 3e. It is the detailed back surface perspective view of the power plug 4a fitting state (before fitting).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings using examples. The same reference numerals are assigned to substantially the same parts, and the description will not be repeated.

  The configuration of the electronic device will be described with reference to FIG. In FIG. 1, an electronic device 10 includes a main body 1, a panel 2, a cover 3, a power cord 4, and a mounting PCB (Printed Circuit Board) 5 (not shown).

  The assembly of the electronic device will be described with reference to FIG. In FIG. 2, after mounting PCB 5 on main body 1, lower panel fixing holes 1 b, temporary fixing holes 1 e, main fixing holes 1 i provided in main body 1, lower fixing claws 2 a provided in panel 2, temporary fixing The panel 2 is fastened to the main body 1 by inserting the claw 2d and the main fixing claw 2i and engaging the claw. The cover guide fitting insertion groove 1m provided in the main body 1 and the cover guide metal fitting 3a provided in the cover 3 are combined, the cover 3 is placed on the main body 1, and the panel 2 is fastened to the main body 1 by sliding in the front direction. To do. Finally, the power cord 4 is fitted into the AC inlet 1p provided in the main body 1.

  With reference to FIG. 3, the panel attachment part 1a of the main body 1 and the attachment structure of the panel 2 are demonstrated with reference to FIG. In FIG. 3, the panel mounting portion 1a of the main body 1 has a lower panel fixing hole 1b, a temporary fixing hole 1e, and a main fixing hole 1i.

  On the other hand, in FIG. 4, the panel 2 has a lower fixing claw 2a, a temporary fixing claw 2d at the upper center, and a main fixing claw 2i at both upper ends. The fixing holes of the panel mounting portion 1a and the fixing claws of the panel 2 are fitted in the order described. When attaching the panel 2 to the main body 1, first, the lower fixing claw 2 a provided on the panel 2 is inserted into the lower panel fixing hole 1 b of the main body 1.

  With reference to FIG. 5 and FIG. 6, the attachment structure of the lower fixing claw 2a and the lower panel fixing hole 1b will be described. In FIG. 5, the lower fixing claw 2a is placed on the lower panel fixing hole engaging portion 1c provided in the lower panel fixing hole 1b, and is slid in the direction of arrow A. In FIG. 6, the lower fixing claw locking portion 2c contacts the lower panel fixing hole locking portion 1d, the lower fixing claw locking portion 2b contacts the lower panel fixing hole locking portion 1c, and the panel 2 is fixed to the main body 1. The At the same time, the temporary fixing claw 2d is temporarily fixed in the temporary fixing hole 1e, and the main fixing claw 2i is inserted into the main fixing hole 1i.

  With reference to FIG. 7 thru | or FIG. 10, fixation of the temporary fixing claw 2d and the temporary fixing hole 1e is demonstrated. The temporary fixing claw 2d and the temporary fixing hole 1e are in a state as shown in FIG. 7 before insertion. When the insertion starts, the temporary fixing claw guide surface 2e comes into contact with the temporary fixing hole upper surface edge 1f as shown in FIG. When further inserted, the temporary fixing claw 2d, which is an elastic body, is inserted while being deformed so that the temporary fixing claw edge 2f and the temporary fixing hole locking portion 1g are in contact with each other as shown in FIG. 9, and is deformed at the position shown in FIG. Is released, the temporary fixing claw locking portion 2g is locked with the temporary fixing hole locking portion 1g, the temporary fixing claw locking portion 2h is locked with the temporary fixing hole locking portion 1h, and the panel 2 is temporarily fixed to the main body 1. .

  Referring to FIG. 11, a description will be given after the main fixing claw 2i is inserted into the main fixing hole 1i. After the main fixing claw 2i is inserted into the main fixing hole 1i, the state becomes as shown in FIG. The main fixing claw 2i has a shape that does not interfere with the main fixing hole 1i in advance, and is not engaged only by inserting the main fixing claw 2i into the main fixing hole 1i.

  The cover attachment to the main body will be described with reference to FIGS. In FIG. 12, the cover 3 has a cover guide metal fitting 3a, a cover guide space 3b, a panel guide metal fitting 3c on the lower surface, a screw hole 3f on the back surface, and a plug fixing portion 3e.

  In FIG. 13, the cover 3 is placed on the main body 1 at a position where the cover guide metal fitting 3 a provided on the cover 3 and the cover guide metal fitting insertion groove 1 m provided on the cover attachment portion 1 r of the main body 1 are aligned.

  The cover guide holding part 3n is slid in the direction of arrow B so that the end face 1n of the cover guide holding part enters the cover guide space 3b, and the cover guide metal fitting 3a is slid to the position where it overlaps the cover guide holding part 1s. Is made. The positional relationship between the cover guide metal fitting 3a after sliding, the cover guide metal fitting insertion groove 1m, and the cover guide holding portion 1s is as shown in FIG.

  In conjunction with the sliding movement of the cover 3, the panel guide fitting 3 c provided on the cover 3 engages the main fixing claw 2 i of the panel 2 with the main fixing hole 1 i provided on the main body 1. This will be described with reference to FIGS.

  In FIG. 15, in the state before the sliding operation of the cover 3, the main fixing claw 2i is not engaged only by being inserted into the main fixing hole 1i.

In FIG. 16, when the cover 3 starts to slide in the direction of the arrow B, the main fixing claw lower edge 2j of the main fixing claw 2i comes into contact with the main fixing claw guide surface 3d of the panel guide metal fitting 3c provided on the cover 3, and elastically moves. The main fixed claw 2i, which is a body, is deformed so as to be pushed up in the top direction along the inclination of the main fixed claw guide surface 3d.
In FIG. 17, the main fixing claw engaging portion 2k is engaged with the main fixing hole upper surface engaging portion 1j, the main fixing claw engaging portion 2r is engaged with the main fixing hole upper surface engaging portion 1k, and the main fixing claw 2i is permanently fixed. It is fixed in the hole 1i.

Next, attachment of the power cord 4 will be described with reference to FIGS.
Details of the plug fixing portion 3e will be described with reference to FIG. In FIG. 18, the plug fixing portion 3e is composed of a plug through hole 3g, a plug system stopper 3h, a plug system stopper 3i, and a cable fixing portion 3j.

  Details of the power cord 4 will be described with reference to FIG. In FIG. 19, the power cord 4 includes a plug portion 4a, an inlet fitting portion 4b, a plug locking surface (first plug locking surface) 4c, and a plug locking surface (second plug locking surface) 4d. , And a code 4e.

  The details of the AC inlet 1p after the cover 3 is attached will be described with reference to FIG. In FIG. 20, the fixing screw 3 k is screwed into the main body 1 through the screw hole 3 f of the cover 3 to fix the cover 3 to the main body 1. The AC inlet 1p and the plug insertion part 1q are visible behind the plug fixing part 3e of the cover 3.

  With reference to FIG. 21, the detail of the plug part 4a fitting state is demonstrated. In FIG. 21, the inlet fitting portion 4 b of the plug portion 4 a is inserted into the plug through hole 3 g of the plug fixing portion 3 e provided in the cover 3. When the plug engagement surface 4c comes into contact with the plug system stop 3h, the plug engagement surface 4d engages with the plug system stop 3i and the cord 4e engages with the cable fixing part 3j, and the plug 4a engages with the AC inlet 1p. Is done.

  With reference to FIG. 22, the cross section of a fitting state is demonstrated. In FIG. 22, since the plug system stop portion 3i of the plug fixing portion 3e and the plug locking surface 4d of the plug portion 4a are locked, the plug portion 4a also serves to prevent the plug portion 4a from falling off the AC inlet 1p. Yes.

The power cord 4 can be attached by the following method.
With reference to FIG. 23, the state which attached the power cord 4 to the plug fixing | fixed part 3e is demonstrated. In FIG. 23, the inlet fitting portion 4b of the plug portion 4a is inserted into the plug through hole 3g of the plug fixing portion 3e provided in the cover 3. The external shape of the plug through-hole 3g is set to have a shape and a dimension through which the inlet fitting portion 4b passes and the plug locking surface 4c does not pass. When the plug locking surface 4c comes into contact with the plug system stopper 3h, the plug locking surface 4d is locked with the plug system stopper 3i and the cord 4e, respectively, and the power cord 4 is connected to the plug fixing portion 3e as shown in FIG. Is attached.

  With reference to FIG. 24, the detail of a power plug 4a fitting state is demonstrated. In FIG. 24, when the cover 3 is placed on the main body 1, the plug portion 4 a of the power cord 4 is not inserted into the AC inlet 1 p provided on the main body 1. When the cover 3 is slid to the front side, the plug system stop portion 3i of the plug fixing portion 3e and the plug locking surface 4d of the plug portion 4a are locked, so that the power cord 4 slides together with the cover 3, and the AC inlet 1p The inlet fitting portion 4b is inserted into the plug insertion portion 1q, and the AC inlet 1p and the plug portion 4a are fitted in the state shown in FIG. Next, the fixing screw 3k is attached to the main body 1 through the screw hole 3f, and the front and back directions are locked.

Finally, removal of the panel 2 and the cover 3 will be described.
First, the fixing screw 3k shown in FIG. 21 is removed, and the fixing of the main body 1 and the cover 3 in the front and back directions is released. When the cover 3 is slid in the rear direction, the locking of the main body 1 and the cover 3 in the top and bottom directions is released at the position where the cover guide metal fitting insertion groove 1m and the cover guide metal fitting 3a shown in FIG. The cover 3 can be removed from the main body 1. At this time, as shown in FIG. 22, the plug portion 4a attached to the plug fixing portion 3e of the cover 3 slides together with the cover 3 and the AC inlet 1p because the plug system stop portion 3h is locked to the plug locking surface 4c. Then, the plug portion 4a is forcibly removed, and the state shown in FIG. For this reason, an electric shock accident and a short circuit accident can be prevented.
Even if the power cord 4 is not forcibly removed, the power cord 4 becomes in the way and it becomes difficult to remove the cover 3, so the power cord 4 may be removed manually.

  Further, when the cover 3 is slid to the position where the cover guide fitting insertion groove 1m and the cover guide fitting 3a are aligned, the panel guide fitting 3c provided on the cover 3 shown in FIG. The main fixing claw 2i is released from the deformation along the inclination of the main fixing claw guide surface 3d, and the main fixing claw locking portion 2k is connected to the main fixing hole upper surface locking portion 1j and the main fixing claw locking as shown in FIG. The portions 2r are respectively unlocked from the main fixing hole upper surface engaging portion 1k, and the plurality of main fixing claws 2i can be simultaneously disengaged.

  Thereby, the main body 1 and the panel 2 are fixed only by the temporary fixing claw 2d and the temporary fixing hole 1e. Next, the maintenance person simply pushes down the vicinity of the temporary fixing claw guide surface 2e of the temporary fixing claw 2d toward the bottom surface, so that the temporary fixing claw locking portion 2g becomes the temporary fixing hole locking portion 1g and the temporary fixing claw locking portion. 2h disengages from the temporary fixing hole locking portion 1h. Thereby, the panel 2 can be easily detached from the main body 1.

  The number of temporary fixings may be determined according to the size of the panel. In the case where the panel is not dropped due to the shape of the lower fixing hole or the claw, the number of temporary fixing may be zero.

  DESCRIPTION OF SYMBOLS 1 ... Main body, 1a ... Panel attachment part, 1b ... Lower panel fixing hole, 1c ... Lower panel fixing hole locking part, 1d ... Lower panel fixing hole locking part, 1e ... Temporary fixing hole, 1f ... Temporary fixing hole upper surface edge 1g ... Temporary fixing hole locking portion, 1h ... Temporary fixing hole locking portion, 1i ... Main fixing hole, 1j ... Main fixing hole upper surface locking portion, 1k ... Main fixing hole upper surface locking portion, 1r ... Cover mounting portion DESCRIPTION OF SYMBOLS 1m ... Cover guide metal fitting insertion groove, 1n ... Cover guide holding part end surface, 1s ... Cover guide holding part, 1p ... AC inlet, 1q ... Plug insertion part, 2 ... Panel, 2a ... Lower fixing claw, 2b ... Lower fixing claw Locking part, 2c ... Lower fixed claw locking part, 2d ... Temporary fixing claw, 2e ... Temporary fixing claw guide surface, 2f ... Temporary fixing claw edge, 2g ... Temporary fixing claw locking part, 2h ... Temporary fixing claw locking Part, 2i ... fixed fixing claw, 2j ... fixed fixing claw lower edge, 2k ... fixed fixing claw Part, 2r ... main fixing claw locking part, 3 ... cover, 3a ... cover guide fitting, 3b ... cover guide space, 3c ... panel guide fitting, 3d ... main fixing claw guide surface, 3e ... plug fixing part, 3f ... screw Hole, 3g ... plug through hole, 3h ... plug system stop, 3i ... plug system stop, 3j ... cable fixing part, 3k ... fixing screw, 4 ... power cord, 4a ... plug part, 4b ... inlet fitting part 4c: Plug locking surface (first plug locking surface), 4d: Plug locking surface (second plug locking surface), 4e: Cord, 10: Electronic device.

Claims (3)

An electronic device comprising: a main body including an AC inlet; and a housing cover having a plug fixing portion for locking a plug of a power cord inserted into the AC inlet,
The housing cover is attached to the main body by sliding on the main body in the insertion direction of the power cord,
The electronic device, wherein when the casing cover is removed from the main body, the plug fixing portion removes the plug from the AC inlet by sliding the main body cover on the main body. The electronic device according to claim 1,
And a panel fixed to the front of the main body,
The panel includes an elastic nail,
The main body further includes a fixing hole on a front surface,
The housing cover further includes a guide fitting, and the guide fitting deforms the elastic claw by sliding on the main body in the insertion direction of the power cord, so that the elastic claw is inserted into the fixing hole. And fixing the panel to the main body. An electronic device including a main body provided with a panel fixing hole, a panel provided with an elastic claw, and a housing cover provided with a guide fitting,
The panel inserts the elastic nail into the panel fixing hole,
The housing cover is attached to the main body by sliding on the main body in the insertion direction of the power cord,
The electronic apparatus according to claim 1, wherein the guide fitting deforms the elastic claw by the slide to attach the panel to the main body.

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