JP2582931Y2 - Electronics - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to electronic devices,
The present invention relates to a housing structure in consideration of a shielding property of an electronic device.

[0002]

2. Description of the Related Art The housing structure of a conventional electronic device is usually E-shaped.
As a countermeasure against MI, a shield structure for preventing unnecessary radiation is employed.

FIG. 12 is a perspective view showing the appearance of a housing of a stationary image recording / reproducing apparatus which is a conventional electronic device. The housing shown in the figure includes a front panel 101 and an exterior panel 10.
The front panel 101 is formed of a plastic molded product or a metal molded product, and includes various operation buttons 103 and a memory card insertion slot 104 (for the memory card device unit, see FIG. 15 or FIG. 16). ), An eject button 104a of the card, an insertion slot 105 of a floppy disk (FD), and the like. The exterior panel 102 is generally made of metal, and is mounted on a main chassis (not shown).

Since the exterior panel 102 is made of metal as described above, there is no problem in the shielding function. On the other hand, since various materials are applied to the front panel 101, it is necessary to consider its shielding function.

[0005]

However, the conventional mounting of the memory card device unit on the front base requires a large number of mounting screws because the card substrate is formed separately as shown in FIG. . That is,
As shown in the exploded perspective view of FIG. 15, the memory card header block 123a has two screws 127 on the card substrate 122.
It is fixed with. In this state, soldering by dipping is performed. Then, the memory card ejector block 12
3b is coupled to the header 123a. The memory card device unit in that state is attached to the unit mounting plate 121 by two.
It is fixed with the screw 128 of the book. As described above, the conventional unit is mounted with a total of four screws.

An object of the present invention is to provide an electronic device in which mounting of a memory card device unit to a front base can be realized with a small number of fastening members in consideration of such a problem of mounting a conventional memory card device unit. It is assumed that.

[0007]

The electronic device according to the present invention has a conductor portion for making an electrical connection with a memory card to be loaded, and a direction in which the memory card is inserted from the side near the memory card insertion slot. A memory card device unit formed to have a thin three-dimensional shape with two substantially parallel main surfaces that are developed so as to extend to a position along one of the two main surfaces. Positioning a board for transmitting and receiving signals to and from the loaded memory card, and along the other of the two main surfaces, a chassis portion of a front panel having the memory card insertion slot. A part is positioned as a plate-like strength member, and the substrate, the memory card device unit, and the plate-like strength member are integrally fastened by a small number of fastening members in the order described above.

[0008]

[Function] The present invention is applied to a memory card device unit.
Along the one of the two main surfaces, the substrate for transmitting and receiving signals to and from the loaded memory card is positioned, and the front surface is arranged along the other of the two main surfaces. A part of the panel chassis is positioned as a plate-like strength member, and the board, the memory card device unit, and the plate-like strength member are integrally fastened by a small number of fastening members.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 is an exploded perspective view of a housing of a stationary image recording / reproducing apparatus of an electronic apparatus according to an embodiment of the present invention.

The structure itself of the housing is attached to a main chassis (not shown) made of sheet metal via screws, and is mounted so as to cover a predetermined inner surface of a front frame 13 which will be described later. A front base 12 of a sheet metal shield member, and a front surface of a molded outer surface member that is attached to the front base 12 via a screw, has a central portion that is open, and has a frame that is exposed to the outside of the housing. A frame 13, a front sheet 14 attached to the surface of the front frame 13, a printed circuit board 15 mounted on the front base 12 and provided with switch elements such as operation switches and switch operation buttons.
It is composed of A memory card device unit, which is a card header / ejector block described later, is mounted on the bent portion 12h on the front base 12.

The front base 12 has a bent portion 12i around the front base. And the bent portion 1
A plurality of folded portions are provided at positions along 2i, and screw holes 12b are provided therein. On the other hand, front frame 1
3, a plurality of bosses 13b are integrally provided at positions facing the screw holes 12b along the inside of the frame. The exploded perspective view of FIG. 4 is a perspective view around the screw holes 12b and the boss 13b of the front base 12 and the front frame 13. The screw holes 12b and the boss 13b are fixed to each other with screws. The front frame 13 is integrated. Then, an integrated front panel 19 is formed as shown in FIG.

Since the front base 12 and the front frame 13 are integrated as described above, the mounting portion does not protrude outwardly of the front base 12 as shown in FIG.
Accordingly, the thickness h of the frame portion of the front frame 13 is
Since it is only necessary to satisfy the shape that hides the end of the zero, a relatively thin dimension can be adopted.

However, in the conventional frame mounting structure of the housing, as shown in the partial sectional view of FIG. 13A or 13B, the front bases 110 and 113 and the front frames 111 and 114 are connected to each other. Attachments C and D are provided to protrude outside the front bases 110 and 113.
Therefore, as the frame portions of the front frames 111 and 114, in addition to the portions overlapping the ends of the chassis 112 and 115, the mounting portions C and D are required, and the thicknesses h 'and h "of the frame portions are required.
Was relatively thick. The above-described front panel 19 having an integral structure of the apparatus according to the present embodiment solves this problem.

Further, in the housing of the apparatus of this embodiment,
Since the mounting structure of the front base 12 and the front frame 13 is a structure in which the front base 12 and the front frame 13 are joined together in the direction A as shown in FIG. The gradient or the like does not significantly affect the accuracy of the mounting position.

However, in the conventional frame mounting structure of the frame, the side mounting type has a bending accuracy of ± 1 ° for the front base 116 and a front frame as shown in a partial sectional view of FIG. Since the draft at the time of molding of 117 had to be expected, its mounting position could not be determined accurately. The above-described case of the apparatus according to the present embodiment also solves this point.

Further, in the housing of the apparatus of this embodiment,
On the front base 12, a plurality of metal bosses 12e are implanted. The printed circuit board 15 has a screw hole 1
Through 5e, it is attached to the boss 12e and attached to the front base 12. In this mounting state, the operation switch buttons (not shown) provided on the printed circuit board 15 are exposed to the outside through the button holes 12f and 14f of the front base 12 and the front seat 14.

As shown in FIG. 7, the front base 12 and the front frame 13 are attached to the notch 12p of the front base 12 and the front frame 1 arranged at the corner.
The third protrusion 13p is fitted and positioned. However, it is assumed that two sets of the notch 12p and the protruding portion 13p face each other on a diagonal line of the frame.

A power switch 21, a connector 22 and the like are mounted on the front base 12, and a plurality of operation switch buttons are mounted on the printed circuit board 15.
Further, a memory card device unit is mounted on the mounting portion 12h formed by bending the front base 12 as described later.

As described above, the front base 12, the front frame 13, and the printed circuit board 15 are integrated, and the front panel unit 1 is a housing panel assembly.
9. Then, the front panel unit 19
Is attached to a chassis (not shown) with screws to form a housing.

FIG. 8 is an exploded perspective view showing a state in which the memory card device unit is attached to the front base 12. The mounting structure of the unit is simple as described later, and its mounting is also easy.

However, the conventional mounting of the memory card device unit to the front base requires a large number of mounting screws because the card substrate is formed separately as shown in FIG. That is, as shown in the exploded perspective view of FIG. 15, the memory card header block 123a is fixed to the card board 122 with two screws 127. In this state, soldering by dipping is performed. Thereafter, the memory card ejector block 123b is inserted into the header section 123a.
To be combined. The memory card device unit in that state is fixed to the unit mounting plate 121 with two screws 128. As described above, the conventional unit is mounted with a total of four screws. In this conventional example, the LED 126 for displaying the mounted state or the operating state of the card is attached separately from the unit.

Therefore, the mounting of the memory card device unit of the housing of the present embodiment to the front base reduces the number of mounting screws and facilitates the mounting.

More specifically, as shown in FIG. 9, the memory card device unit of the device according to the present embodiment comprises a memory card header / ejector block 17 and a card board 16 on which a connector 31 is mounted. You.

The memory card header / ejector block 17 is provided with its own memory card insertion slot 17c.
A guide portion for a memory card inserted from the memory card, and an eject button 18 as an eject operation portion. The eject button 18 is extended from the vicinity of the memory card insertion slot 17c so as to extend in the memory card insertion direction. Ejector block 17b formed so as to form a thin three-dimensional body having two major surfaces, and card ejector block 1
7b having a conductor portion for making an electrical connection with a memory card loaded through the card ejector block 17b.
And a card head block 17a, which is mechanically connectable, is formed integrally with the card head block 17a so as to be substantially accommodated in the space between the extensions of the two main surfaces.

The card substrate 16 for transmitting and receiving signals to and from the loaded memory card is positioned along one of the two main surfaces, and the substrate 16 and the header / ejector block 17 are separated from each other. A small number of 2 is provided on the mounting portion 12h of the front base 12 serving as a reinforcing member.
The screws 24 are used to attach the mounting holes 16k and 17k through the screw holes 12k.

In this case, since the screw hole 12k is provided in the front base 12, it is not necessary to use a nut.

As described above, in this embodiment, the mounting structure of the memory card device unit is simple, and the mounting thereof is also easy. Further, in the conventional memory card device unit, a separate substrate for mounting an element such as an LED is required,
Since the mounting position corresponds to the connection / removal path of the card ejector, there is a problem that the cost for mounting the board is high.

Therefore, in the above embodiment, as shown in FIG. 9, an LED 32 which is a component or an element for transmitting / receiving a signal to / from a memory card is mounted on the card board 16. The mounting position is near the card insertion slot 17c, and when the eject block 17b is connected to or separated from the header block 17a, the LE
In order not to interfere with D32, the ejector block 1
The LED 32 is disposed at a position retracted from the displacement locus of 7b.

On the other hand, in the conventional memory card device unit, the ejector block 133b, the header block 133a, and the LED 1 are mounted on the card substrate 132 as shown in FIG.
36, the LED 136
Is the header block 133 of the ejector block 133b.
It was located on the movement path in the E direction at the time of coupling to and departure from a. Therefore, in this state, the LED 136 interferes and the ejector block 133b cannot be connected or disconnected.

In general, since the card substrate 132 is subjected to a soldering process by dipping, the header block 133a and the LED 136 are mounted on the card substrate 132 in a state where the ejector block 133b is connected to the header block 133a in the case of this conventional example. To perform the soldering process. Therefore, it is necessary to clean the ejector block 133b after the above soldering.

Therefore, in order not to perform the above-described cleaning, the above-described soldering process is performed in a state where the ejector block 133b and the LED 136 are not mounted. Thereafter, the ejector block 133b is connected, and further, the LED 136 is inserted and soldering is performed. Had to do. As described above, in the conventional memory card device unit, the arrangement position of the LED 136 is poor, and there is a problem in assembly.

The memory card unit shown in FIGS. 8 and 9 of this embodiment is arranged so as not to interfere with the LED 32 as described above.
7a and the LED 32 can be soldered in a mounted state, thereby solving the above-mentioned conventional problems and simplifying the substrate mounting process. Further, in the conventional case having two or more card header ejectors, there is a problem in that the space efficiency is poor, a card substrate is required for each, and the cost is high.

FIG. 10 is a perspective view of a housing showing a disposition state of a stationary image recording / reproducing apparatus of an electronic apparatus according to the present invention, in which a plurality of memory card device units in consideration of the above problem are incorporated. It is.

The two sets of memory card device units of the present device have one of the two main surfaces of the header / ejector blocks 142 and 143 positioned so as to be substantially in the same plane, and are also display elements. LED 144, 14
5, and a single common card board 141 on which the connectors 148 and 149 are mounted, is horizontally arranged on the upper part of the housing. FIG. 11 is a perspective view showing an arrangement state of a memory card device unit and the like on the card board 141. The two connectors 148 and 149 are inserted and removed in the same direction. It is also assumed that the memory card insertion openings 142a and 143a and the eject buttons 146 and 147 are arranged in a row in the horizontal direction.

Incidentally, in a conventional stationary image recording / reproducing apparatus incorporating a plurality of memory card device units, a perspective view of a housing 141 shown in FIG. Shown in the figure. As shown in the drawing, in the housing 141, two sets of header / ejector blocks 142 and 143 and the card board 1 are provided.
44, 145 are arranged in two vertical columns. In this conventional example, the distance d between the card boards 144 and 145 becomes large because the height of the signal line harness connectors 146 and 147 and the dimensions required for connector insertion / removal are increased, and the dead space increases. . Also, the insertion and removal of the connector was difficult. Further, there is a problem that the card substrate is separated into two pieces.

FIG. 18 is a perspective view showing the arrangement of a plurality of units in another conventional stationary image recording / reproducing apparatus incorporating a plurality of memory card device units. In the body 151, two sets of header / ejector blocks 152 and 153 and card boards 154 and 155 are arranged in two vertically spaced positions. This conventional example requires two separate card substrates, which is disadvantageous in cost. Further, since the card insertion button and the card eject button are arranged apart from each other, there is a problem that operability is not good.

However, in the case of the stationary image recording / reproducing apparatus shown in FIGS. 10 and 11 having the memory card device unit provided in the housing of the stationary image recording / reproducing apparatus, as described above, one card substrate is provided. It is only necessary to apply only 141, which is advantageous not only in terms of cost but also in terms of installation space. Further, the operation of inserting and removing the connector is facilitated.

The two connectors 148, 1 in the memory card device unit shown in FIGS.
49 may be applied as a single shape.

Although the memory card device unit of the housing shown in FIG. 10 is provided above the housing 140, it may be provided at a position below the housing 140. Further, if the front panel 101 of the housing of the recording / reproducing apparatus as the conventional electronic apparatus shown in FIG. However, for example, in the case of a pressed product made of sheet metal, the surface becomes quite monotonous in design. In addition, since it cannot be formed into a complicated shape, there is a restriction and it becomes inconvenient to use. In addition, when the front panel 101 is made of die-casting, it is very disadvantageous in terms of mold manufacturing cost and unit cost.

Therefore, a plastic molded front panel 101 is employed. In this case, it is necessary to provide a shielding function. As one of them, a structure in which plastic plating such as Cu or Ni is applied and electrical conduction with a metal main chassis near the screw fastening portion is considered. However, when the plating thickness is several μm, the EM
I cannot say that it is enough for the measures. In addition, problems such as the inability to use a mold material having low heat resistance occur.

There is also a method of applying a conductive coating instead of the plastic plating. In this case, however, there is a problem in the adhesion of the coating, and the cost is disadvantageous.

It is also conceivable to make the front panel 101 a plastic molded article containing a conductive filler and reduce the resistance value of the panel. In this case, there remain problems such as the appearance of filler and an increase in material costs. In addition, it is necessary to ground the main chassis, which causes a problem that the contact between the chassis and the filler is electrically unstable at the contact portion.

In consideration of the above problems, there is no limitation on the shape and function of the outer surface or the outer surface of the housing, and there is no disadvantage in terms of cost. The equipment is shown in FIG.

FIG. 1 is an exploded perspective view of a case of a stationary image recording / reproducing apparatus of an electronic apparatus according to an embodiment of the present invention. The appearance of the housing is substantially the same as the appearance of the conventional stationary image recording / reproducing apparatus shown in FIG.

The housing has a main chassis 1 made of sheet metal on which an exterior body (not shown) is mounted, and a front frame 3 which is attached to the chassis 1 via screws.
A front base 2 of a sheet metal shield member which is mounted so as to cover the back surface which is a predetermined inner surface, and a molded outer surface member which is attached to the front base 2 via a screw and is exposed to the outside of the housing. A front frame 3 and a front sheet 4 attached to a surface of the front frame 3 and formed of an aluminum thin plate, a vinyl chloride sheet, or the like;
The printed circuit board 5 is fixed to the front frame 3 and the front base 2 and has switch elements such as operation switches and switch operation buttons.

The front base 2 is attached to the front frame 3 by screws via screw holes 2b provided on the front surface and screw holes 3b of the front frame 3, and a front panel unit as a housing panel assembly is provided. 6 is formed. When attaching the front base 2 and the front frame 3,
Pins 3 provided on both sides of the front frame 3
By fitting c and 3d into the round hole 2c and the long hole 2d of the front base 2, accurate positioning between the two can be performed.

The front frame 3 has a plurality of bosses 3.
e, and one metal boss 2 on the front base 2.
e are respectively planted. Furthermore, front base 2
Is provided with an escape hole 2j through which the boss 3e of the front frame 3 can pass. On the other hand, the printed circuit board 5 is provided with screw holes 5e at positions facing the bosses.

The printed circuit board 5 is provided with the screw holes 5.
The e is attached to the bosses 3e and 2e by screws via e, and is attached to the front base 2 and the front frame 3. In the mounted state, the operation switch buttons (not shown) provided on the printed circuit board 5 are exposed to the outside through the button holes 2f and 3f of the front base 2 and the front frame 3.

A ground line of a circuit is connected to a land portion of the printed board 5 which is in contact with the metal boss 2e of the front base 2, and the front base 2 is kept at the same potential as the ground of the printed board 5. . FIG. 2 is a cross-sectional view of a portion around the metal boss 2e of the front base 2. The metal boss 2e is implanted on the front base 2 by welding, caulking, or the like.

A memory card unit (not shown) is mounted on the bent portion 2h of the front base 2.

The integrated front panel unit 6 is attached to the main chassis 1 via the front base 2 to complete a housing. The front panel unit 6 is attached by screw holes 1a provided on the bottom and front sides of the chassis 1 and screw holes 2a provided on the bent portions 2i on the upper, lower, and both sides of the front base 2. Attached by The front base 2 has a bent portion 1i on the lower surface and the front surface on both side surfaces so that the front base 2 can be easily inserted.

As described above, in the housing structure of the apparatus according to the present embodiment, the front base 2 serving as a shield member is integrally joined to the front frame 3 serving as a molded member along the back surface so as to be in close contact with the front frame 3. . Therefore, the outer surface exposed to the outside has, for example, a predetermined shape, a predetermined stamp, a predetermined insulating property, and the like, and assemblability of a housing panel having a shielding property is easily secured. Further, the shape and function of the outer surface or the outer surface of the housing are not limited, which is advantageous in cost.

[0054]

As described above, the housing of the electronic device of the present invention has an advantage that the memory card device unit can be mounted on the front base with a small number of fastening members.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a housing of a stationary image recording / reproducing apparatus of an electronic device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view around a mounting portion of a front base and a printed circuit board in the housing of FIG. 1;

FIG. 3 is an exploded perspective view of a housing of the stationary image recording / reproducing apparatus of the electronic apparatus according to the embodiment of the present invention;

FIG. 4 is an exploded perspective view of the housing of FIG. 3 around a mounting portion of a front base and a front frame.

FIG. 5 is a perspective view around a mounting portion of a front base and a front frame of the housing of FIG. 3;

FIG. 6 is a sectional view of a mounting portion of the front base and the front frame of the housing of FIG. 3;

FIG. 7 is an exploded perspective view of a front base and a front frame mounting positioning portion of the housing of FIG. 3;

FIG. 8 is an exploded perspective view of a card device unit attached to the front base of the housing of FIG. 3;

FIG. 9 is a perspective view of a card device unit to which the housing of FIG. 3 is attached.

FIG. 10 is a perspective view of a housing showing an arrangement state of two memory card device units incorporated in a stationary image recording / reproducing apparatus of an electronic apparatus according to the present invention.

FIG. 11 is a perspective view of the memory card device unit of FIG. 10;

FIG. 12 is a perspective view showing an external appearance of a housing of a stationary image recording / reproducing apparatus which is a conventional electronic apparatus.

13A and 13B are cross-sectional views of a mounting portion of a front base and a front frame of another conventional electronic device housing, where FIG. 13A is a cross-sectional view of one conventional mounting portion, and FIG. 13B is another cross-sectional view. It is sectional drawing of the attachment part of a prior art example.

FIG. 14 is a cross-sectional view of a mounting portion of a side mounting structure of a front base and a front frame of a housing of another conventional electronic device.

FIG. 15 is an exploded perspective view of a card device unit attached to a housing of another conventional electronic device.

FIG. 16 is a side view of a card device unit attached to a housing of another conventional electronic device.

FIG. 17 is a perspective view showing a state in which two sets of card device units are mounted on a housing of another conventional electronic device.

FIG. 18 is a perspective view showing the state of two sets of card device units mounted on the housing of another conventional electronic device.

[Explanation of symbols]

2,12 Front base (shield member) 3,13 Front frame (molded outer surface member) 6,19 Front panel unit (housing panel assembly)

Claims (1)

(57) [Scope of request for utility model registration] 1. A substantially parallel conductor having a conductor portion for making an electrical connection with a memory card to be loaded, wherein the conductor portion is developed so as to extend in a memory card insertion direction from a side near a memory card insertion slot. For a memory card device unit formed to have a thin three-dimensional shape with both main surfaces, a signal of the signal with the loaded memory card is arranged along one of the two main surfaces. Positioning the substrate to be transferred, and along the other of the two main surfaces,
A part of the chassis portion of the front panel having the memory card insertion slot is positioned as a plate-like strength member, and the board, the memory card device unit, and the plate-like strength member are integrally fastened by a small number of fastening members in the above order. An electronic device, comprising: