JP5371709B2 - External storage device and its case - Google Patents

Abstract

The invention provides an external storing device and its housing. The external storing device can improve the interchangeability of small-size external storing devices. A first and a second housings are provided with storage media and one ends of the first and the second housings are provided wiring substrates of a connector for external connection. A first threaded hole for installing the external storing device is disposed at a plurality of parts of the surface of the first housing with respect to the wiring substrate. The second housing is provided with wall parts which respectively protrude towards the internal second housing at the plurality of positions corresponding to the first threaded hole of the first housing, thereby entering space of a threaded component fastened in the first threaded hole is ensured. Hook-shaped components, disposed at at least parts of the plurality of wall parts and at the inner side surface of the second housing are used for clamping the wiring substrate between the hook-shaped components and a supporting component supporting the wiring substrate from the lower side.

Description

  The present invention relates to an external storage device and its case.

  Conventionally, hard disks (hereinafter abbreviated as HD as necessary) and silicon disks (hereinafter also abbreviated as SSD) have been widely used as external storage devices. These external storage devices are standardized in terms of shape, position of mounting screws, etc., with emphasis on compatibility when mounted inside a computer. Recently, an SSD may be installed instead of a hard disk, and the 3.5-inch standard and 2.5-inch standard originally defined from the disk size of the hard disk are also used in other external storage devices. There are many cases. Various adapters for mounting external storage devices having different sizes have also been proposed (see, for example, Patent Document 1 below).

JP 2008-108405 A

  In recent years, there has been a strong demand for downsizing notebook computers, and hard disks and SSDs are strongly required to have as small a shape as possible while maintaining compatibility in shape and mounting relationship. In particular, SSDs are used to replace hard disks, and compatibility with hard disks is required. However, in the SSD, since the storage medium used is a semiconductor memory chip, the hard disk using a storage medium such as a 2.5-inch disk has different requirements for the housing shape as viewed from the built-in components, and is not necessarily in the shape. It could not be said that the compatibility of was maintained. In particular, if the built-in hard disk is slimmed down to the last so that it can be mounted on a small notebook computer, the conventional SSD cannot be replaced.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1]
An external storage device containing a storage medium,
While mounting the storage medium, a wiring board mounted with an external connection connector at one end;
First and second cases covering the wiring board from both sides;
A fixing mechanism for fixing the first case and the second case in a state of being housed in the wiring board;
The first case includes a first screw hole for attaching to an external device at a plurality of locations on a surface facing the wiring board,
In the second case,
A screw that protrudes toward the inside of the second case and is screwed into the first screw hole can enter each of a plurality of positions corresponding to the first screw hole of the first case. A wall that secures space;
A plurality of support members for supporting the wiring board;
An external storage device, wherein at least a part of the plurality of wall portions includes a hook that sandwiches the wiring board between the support member and an inner side surface of the second case.

  According to such an external storage device, the wiring board mounted with the storage medium is accommodated in the first and second cases fixed by the fixing mechanism, and is sandwiched between the support member and the hook provided on the wall portion. Held in. In addition, the external storage device can be directly attached to an external device using the first screw hole. Since the wall portion that secures a space in which the screw can enter the first screw hole also functions as a mechanism for fixing the wiring board, the external storage device can be reduced in size. As a result, it becomes easy to ensure compatibility with other external storage devices.

[Application Example 2]
An external storage device described in Application Example 1,
The first or second case includes a plurality of second screw holes in which the screw intrusion direction is different from the first screw hole,
The external storage device in which the wall portion is provided so that the space can be inserted into a screw screwed exclusively into the first and second screw holes.

  In this external storage device, the second screw hole is provided so that the screw intrusion direction is different from that of the first screw hole. In the space formed by the wall portion, the first and second screw holes are screwed. Since the screw to be stopped is allowed to enter exclusively, it can be screwed from any direction corresponding to the first and second screw holes. For this reason, it is possible to reduce the size of the device by reducing the screwing space required inside the external storage device while increasing the degree of freedom in mounting the external storage device. The second screw hole may be provided in the first case, or may be provided in the second case by devising a combination shape of the cases. Of course, a part of the second screw hole may be provided in the first case, and the rest may be provided in the second case. The screw penetration direction into the second screw hole only needs to be different from the screw penetration direction into the first screw hole, and if the two are perpendicular to each other, the mounting direction may be two vertical and horizontal directions. it can. Depending on the shape of the external device to be attached, both may be in a relationship of other angles. The intrusion direction of the screw in the second screw hole does not have to be the same for all the second screw holes, and the intrusion direction also opposes if it is provided on the opposite side surface of the second case. . Of course, when it is provided on the adjacent side portion of the second case, the intrusion directions of the screws in the second screw holes cross each other (mostly orthogonal). The screw penetration directions in the first screw hole and the second screw hole do not necessarily cross each other, and both screw holes may be in a so-called twist position.

[Application Example 3]
An external storage device according to Application Example 1 or Application Example 2,
The surface of the first case facing the wiring board is raised around the first screw hole by a predetermined dimension, and the first and second cases are fixed by the fixing mechanism. An external storage device in which a dimension from the first screw hole of one case to a bottom surface of the second case is a mounting dimension to the external device.

  In such an external storage device, since the periphery of the first screw hole is raised by a predetermined dimension, the second case is formed from the surface of the first screw hole when the first and second cases are fixed by the fixing mechanism. If the dimension up to the bottom surface is the dimension for mounting to an external device, the height of the surface facing the first case wiring board can be reduced accordingly. As a result, the volume required when attaching the external storage device to a notebook type computer or the like can be suppressed. Of course, the periphery of the first screw hole may be kept flat or may be recessed. In addition to the periphery of the first screw hole, for example, a range corresponding to the height of a component mounted on the wiring board may be raised uniformly or according to the component.

[Application Example 4]
An external storage device according to application example 2,
A side wall that is substantially perpendicular to the surface of the first case facing the wiring board is provided at a position corresponding to at least the wall portion;
An external storage device in which the second screw hole is provided in the side wall.

  In this external storage device, the second screw hole is provided on a side wall that is substantially perpendicular to the surface of the first case facing the wiring board, and is provided on a side wall provided at a position corresponding to at least the wall portion. Therefore, both the first and second screw holes are provided in the first case, and the dimensional accuracy required in both screw holes can be easily realized. Further, the processing of the screw holes is necessary only for the first case, and the manufacture is facilitated. Here, the side wall is perpendicular to the surface of the first case facing the wiring board. However, the side wall may be at any other angle as long as it can be combined with the second case.

[Application Example 5]
An external storage device according to any one of Application Example 1 to Application Example 4,
The first case is formed by sheet metal processing,
The second case is an external storage device formed by resin molding.

  In this external storage device, the first case is formed by sheet metal processing and the second case is formed by the resin mode, respectively. Therefore, the cost of the entire case can be reduced, and further, the advantages of excellent mass productivity can be obtained. Further, since the first case is formed by sheet metal processing, it is easy to change the shape and the like, and it is possible to flexibly meet the demand for the case outer shape. On the other hand, since the second case is formed by resin molding, not only can the unit price be reduced, but also the wall portion and the support member are formed of resin. It is possible to eliminate the risk of being pressed and damaged by metal or the like. Note that the first case can also be formed of a resin mold. In addition, the second case may be configured such that the base portion is formed of a metal or other material, and only the wall portion and the portion of the support member that contacts the wiring board are coated with resin or the like. As such a coating resin, various materials such as natural resins such as rubber and synthetic resins can be used. Of course, depending on the combination with the material of the wiring board, at least one of the wall portion and the support member may be formed of a material other than resin. Originally, the wiring board of the external storage device is rarely repeatedly removed and used, so once the wiring board is sandwiched between the hook of the wall member and the supporting member, whatever the material of the wall or supporting member is This is because the possibility of damaging the wiring board is small.

[Application Example 6]
An external storage device according to Application Example 5,
The first case is formed by bending the sheet metal at the peripheral edge of the surface facing the wiring board by bending the sheet metal, and the fixing mechanism is attached to the tongue piece. Provide a part of the engaging part,
An external storage device, wherein the second case is provided with an engaging member that engages with the engaging portion provided on the tongue piece and constitutes the fixing mechanism.
In such an external storage device, the first case and the second case can be fixed very easily. Of course, as the fixing mechanism, various configurations such as one in which the first case is screwed to the second case (or vice versa), and one in which the first case is fixed by a grommet or a rivet can be employed.

[Application Example 7]
The application example 5 or the application example 6, wherein a spring member that electrically connects the ground of the wiring board and the sheet metal processed first case is provided on a surface of the wiring board on the first case side. External storage device.
In such an external storage device, electrical connection between the ground of the wiring board and the first case can be reliably realized, and noise countermeasures can be achieved by the first case. Since the first wiring board that accommodates the wiring board together with the second case is a sheet metal and is held at the same potential as the ground of the wiring board, it is less susceptible to external noise or externally. Noise radiation can be reduced. Note that the ground of the wiring board and the first case may be connected by a conductor other than the spring member. For example, both may be connected by an electric wire, or a leg portion extending from the first case may be in contact with the ground of the wiring board. It is good also as a structure soldered after a contact. Or it is good also as what fixes the conductor extended toward the 1st case from the land of the ground of a wiring board in contact with the 1st case. Further, the first case may be connected to the power supply line instead of the ground side of the wiring board. Further, when the second case is formed of a conductor, the ground of the wiring board and the power supply line may be connected to the second case. The first and second cases may themselves be good electrical conductors such as sheet metal, but may be formed of a conductive film on the surface or a resin mixed with a material such as carbon. Absent. A part of each case may be formed of sheet metal or the like, and a ground of a wiring board or a power supply line may be connected thereto.

[Application Example 8]
The external storage device according to any one of application examples 1 to 7, wherein the first case is cut out at a position corresponding to a position where the connector is attached to the wiring board.
In this external storage device, the first case does not interfere with the connector on the wiring board, and the height of the first case can be suppressed without being restricted by the height of the connector. When the height of the connector is sufficiently low with respect to the mounting dimension, it is not necessary to cut out the first case. Moreover, you may provide the notch of a 1st case besides the location corresponding to a connector.

[Application Example 9]
The external storage device according to application example 8, wherein the connector is a SATA standard connector.
Since the SATA standard connector is often used for an external storage device and its height is determined as the standard of the connector, the first case can be made lower by the height of the SATA standard connector. This is useful in securing the degree of freedom. Of course, other connectors such as an IDE connector, a USB connector, and a SCSI connector can be used.

[Application Example 10]
10. The external storage device according to any one of application examples 1 to 9, wherein the wiring board includes another connector for connecting the external storage device to an external computer, in addition to the connector.
Since such an external storage device is provided with another connector such as a USB, for example, it can be connected to an external computer using the other connector, and the convenience can be further improved. Such a connector may be provided at any position on the wiring board. In some cases, the wiring board may be provided on the back surface instead of the front surface.

[Application Example 11]
The storage medium is one of a disk device that stores data magnetically, a disk device that stores data magneto-optically, a semiconductor storage device that electrically stores data, and an optical storage device that optically stores data. The external storage device according to any one of Application Examples 1 to 10.
Such an external storage device can store data by each method, and can enjoy the advantages of each method. For example, in the case of magnetically storing data such as a hard disk, a large-capacity storage device can be configured using the size of the storage capacity. In addition, when a semiconductor memory device is used, there can be obtained an advantage that reading or writing can be speeded up without a movable part. As the semiconductor memory device, various configurations such as a configuration using a memory such as SRAM and DRAM, a configuration using a flash memory, a configuration using a ferromagnetic memory, and the like can be adopted. A typical example of a magneto-optical storage device is a storage device such as an MO. Furthermore, examples of the optical storage device include a storage device using a hologram. Of course, a storage medium other than these methods may be used.

[Application Example 12]
A case for an external storage device capable of incorporating a wiring board with a storage medium attached and an external connection connector attached to one end,
First and second cases covering the wiring board from both sides;
A fixing mechanism for fixing the first case and the second case in a state of being housed in the wiring board;
The first case includes a first screw hole for attaching to an external device at a plurality of locations on a surface facing the wiring board,
In the second case,
A screw that protrudes toward the inside of the second case and is screwed into the first screw hole can enter each of a plurality of positions corresponding to the first screw hole of the first case. A wall that secures space;
A plurality of support members for supporting the wiring board;
A case for an external storage device, wherein at least a part of the plurality of wall portions includes a hook that sandwiches the wiring board between the support member and an inner side surface of the second case.

  Such a case for an external storage device can accommodate a wiring board on which a storage medium is mounted in first and second cases fixed by a fixing mechanism, and further includes a support member and a hook provided on a wall portion. The wiring board can be sandwiched and held therebetween. An external storage device using this case can be attached to an external device as it is using the first screw hole provided in the first case. Since the wall portion that secures a space in which the screw can enter the first screw hole also functions as a mechanism for fixing the wiring board, the external storage device can be reduced in size. As a result, it becomes easy to ensure compatibility of the external storage device using this case with other external storage devices. Needless to say, in such a case for an external storage device, various modifications described in Application Examples 1 to 11 are possible.

It is a perspective view which shows the external appearance of SSD of an Example. It is a disassembled perspective view of SSD. It is a perspective view of a lower case. It is a top view which shows a wiring board. It is explanatory drawing which shows the attachment relationship of the recessed part periphery of a lower case. It is a top view of a lower case. It is a cross-sectional enlarged view of the AA arrow in FIG. It is a cross-sectional enlarged view of the BB arrow in FIG. It is explanatory drawing which shows the fixed state of a wiring board.

  Embodiments of the present invention will be described below based on examples. FIG. 1 is a perspective view showing an appearance of an SSD 10 as an embodiment of the present invention. The SSD 10 is configured by fitting an upper case 20 made of SECC having a thickness of 0.6 mm, which is processed by sheet metal, into a lower case 50 made of ABS resin, and a wiring board 80 is accommodated therein. Yes. A large number of flash memories, which are semiconductor memories, are mounted on the wiring board 80, and a storage capacity of 64 GB is realized as a whole. One end of the SSD 10 in the longitudinal direction is provided with a connector 85 (hereinafter also referred to as a SATA connector) 85 that is coupled to a SATA connector provided inside the computer, and a USB connector 88 is provided at the other end. .

  The SSD 10 of this embodiment has the same shape as the 2.5 inch size hard disk shape standard, and the upper surface 22 has four screw holes (hereinafter referred to as the 2.5 inch size hard disk standard). 24-27) (referred to as first screw holes). In addition, on the straight lines connecting these first screw holes 24 and 25, 26 and 27, the left and right side surfaces of the SSD 10 are similarly attached to the screw holes for mounting (hereinafter referred to as second screw holes) according to the standard. (The second screw holes 32 and 34 are not shown in FIG. 1). These screw holes 24 to 27 and 31 to 34 are all formed by subjecting a sheet metal of the upper case 20 to a lower hole process and a burring process, and then performing a screw hole process. The thickness, width and depth of the SSD 10 as well as the position of the SATA connector 85 as well as the position of the screw holes all comply with the 2.5-inch hard disk standard. In the embodiment, the upper case 20 corresponds to the first case of the claims, and the lower case 50 corresponds to the second case.

  A method for combining the upper case 20 and the lower case 50 will be described later. As shown in FIG. 1, when both are assembled with the wiring board 80 housed therein, the SSD 10 has a first screw hole. 24 to 27 or the second screw holes 31 to 34 can be attached to an external device, for example, a notebook type personal computer. The arrangement of the first screw holes 24 to 27 and the second screw holes 31 to 34 conforms to the 2.5 inch hard disk standard. Further, as shown in the drawing, raised portions 24 </ b> A to 27 </ b> A are provided around the first screw holes 24 to 27 provided on the upper surface 22 of the upper case 20. For this reason, the thickness excluding each raised portion of the SSD 10 is 0.5 mm or more thinner than the thickness defined by the 2.5-inch hard disk. Therefore, it is easy to attach the inside of a narrow notebook computer or the like.

  FIG. 2 is an exploded perspective view showing the structure of the SSD 10. As shown in the drawing, the lower case 50 is formed in a shape in which the side wall 54 rises from the bottom surface 52 at a substantially right angle except for the side where the SATA connector 85 is located. A recess 56 is formed in the bottom surface 52 of the lower case 50. The dent 56 on the bottom surface 52 imitates the shape of a 2.5-inch hard disk, but at the same time functions as a rib, and serves to impart rigidity to the bottom surface 52 of the lower case 50. Further, both sides of the opening side end portion of the lower case 50 are extended outward to form convex portions 97 and 98. The projecting portions 28 and 29 of the upper case 20 that are similarly extended fit into the convex portions 97 and 98. The convex portions 97 and 98 are provided for the purpose of protecting the SATA connector 85 attached to the end portion of the wiring board 80.

  The shape of the bottom surface 52 of the lower case 50 is shown in FIG. FIG. 3 is a perspective view showing the shape of the lower case 50 by reversing the vertical relationship in FIG. As shown in FIGS. 2 and 3, the lower case 50 is provided with recesses 61 to 64 that are directed inward at four locations on the side wall 54. The positions of the recesses 61 to 64 correspond to the positions of the first screw holes 24 to 27 and the second screw holes 31 to 34.

  A wiring board 80 is accommodated in the lower case 50. As described above, the wiring board 80 is provided with the flash memory FM, the SATA connector 85, and the USB connector 88. A contact member 89 using a leaf spring is attached next to the USB connector 88. The contact member 89 is electrically connected to the ground line of the wiring board 80 and is provided to ensure electrical continuity with the upper case 20 as will be described later. As shown in the plan view of FIG. 4, the wiring board 80 to which these members are soldered has positions corresponding to the recesses 61 to 64 of the lower case 50 at the periphery thereof, and the outer shape of the recesses 61 to 64. The recesses 61 to 64 can be used as positioning members when stored in the lower case 50. Although the method of fixing the wiring board 80 will be described in detail later, the wiring board 80 is positioned and arranged in the lower case 50 due to the presence of the recesses 61 to 64 of the lower case and the notches of the wiring board 80. The

  The relationship between the recesses 61 to 64 of the lower case 50 and the first and second screw holes 24 to 27 and 31 to 34 will be described. FIG. 5 is a perspective view showing these relationships. In FIG. 5, only the recessed part 63 and its periphery are shown as a representative example. Further, in FIG. 3, for the sake of understanding, the illustration of the first screw hole 26, including the surrounding raised portions, is saved.

  Side wall members 41 to 43 for forming second screw holes 31 to 34 are formed near the first screw holes 24 to 27 of the upper case 20. As shown in FIG. 5, the side wall members 41 to 44 are formed by being bent substantially vertically from the upper surface 22 of the upper case 20. The bent portion is deviated from the position corresponding to the recesses 61 to 64. This is to prevent the jig used at the time of bending from interfering with the first and second screw holes subjected to burring. When the upper case 20 is fitted to the lower case 50, the bent side wall members 41 to 44 are accommodated in recesses (see FIG. 2) provided in the side wall 54 near the recess 63 of the lower case 50. The first screw holes 24 to 27 are positioned corresponding to the upper openings of the recesses 61 to 64, and the second screw holes 31 to 34 are positioned corresponding to the side openings of the recesses 61 to 64. Therefore, when the male screw FB1 or FB2 for attaching the SSD 10 to the external device is screwed here, each screw FB1, FB2 can enter the internal space of the recesses 61-64. As a result, the screws FB1 and FB2 do not enter the case and damage electronic components on the wiring board 80. In addition, since the attachment with the external device is usually performed using either the first screw hole or the second screw hole, the two screws FB1 and FB2 cannot enter the recesses 61 to 64 at the same time. Absent. For this reason, the concave portions 61 to 64 need only have a size that allows the penetration of one screw, and the concave portions 61 to 64 can have the minimum necessary shape.

  The upper case 20 and the lower case 50 are fixed in such a manner that the five tongue pieces 35 to 39 on the side surface formed by bending a part of the upper case 20 enter the inside of the side wall 54 of the lower case 50. This is performed by fitting the openings provided in the tongue pieces 35 to 39 to the provided protrusions 75 to 79. The tongue pieces 35 and 36 are at the substantially central portions on both sides in the short direction of the upper case 20, the tongue pieces 37 and 38 are lateral to the projecting portions 28 and 29 of the upper case 20, and the tongue piece 39 is the upper case The 20 USB connectors 88 are provided at substantially the center on the side where the USB connectors 88 are arranged, and the protrusions 75 to 79 are provided at positions corresponding to the tongue pieces 35 to 39, respectively. The tongue pieces 35 to 39 are also used for fixing the wiring board 80.

  The fixing of the wiring board 80 will be described. 6 is a plan view of the lower case 50, FIG. 7 is an enlarged sectional view taken along the line AA, and FIG. 8 is an enlarged sectional view taken along the line BB in FIG. Further, FIG. 8 is an explanatory view showing a state in which the wiring board 80 and the upper case 20 are assembled in the vicinity of the concave portion 64 of the lower case 50. As shown in the drawing, support convex portions 65 to 68 are formed in the vicinity of the concave portions 61 to 64 of the lower case 50 and on the inner side when viewed from the concave portions 61 to 64. As shown in FIG. 8, the support convex portions 65 to 68 are formed in a stepped shape (hereinafter also referred to as a stepped portion), and function as a support portion on which the wiring board 80 is placed.

  On the other hand, of the recesses 61 to 64, the hook 64 is formed on the outer side of the recess 64 on the side formed in a semi-cylindrical shape. As shown in FIG. 8, the hook 74 includes an inclined portion directed from the upper case 20 side to the lower case 50 side. Therefore, when the wiring board 80 is disposed in the lower case 50, the edge of the notch 94 of the wiring board 80 inserted from above is pushed over the inclined portion of the hook 74, as shown in FIG. The state is sandwiched between the stepped portion of the support convex portion 68 and the lower surface of the hook 74. Since the hook 74 is provided only in one of the four concave portions (64), and the hook 74 and the support convex portion 68 are both made of synthetic resin, excessive stress is applied to the wiring board 80 by clamping. Absent. Of course, the hook 74 may be similarly provided in the other recesses 61 to 63, and the wiring board 80 may be fixed in the lower case 50 by this hook. In the present embodiment, the hook 74 is provided only in the recess 64, but the wiring board 80 is fixed by tongue pieces 35 to 39 provided at five locations around the upper case 20. .

  The wiring board 80 is pressed by the tips of the tongue pieces 35 to 39 by assembling the upper case 20 to the lower case 50 and is fixed in the case. As described above, the tongue pieces 35 to 39 are fitted and fixed to the projections 75 to 79 provided on the inner side of the side wall 54 of the lower case 50. At the same time, the tongue pieces 35 to 39 abut against the upper surface of the wiring board 80 and fix the wiring board 80 placed on the stepped portions of the support convex parts 65 to 68.

When the upper case 20 is assembled to the lower case 50, the height of the HM is secured between the inside of the upper surface 22 of the upper case 20 and the upper surface of the wiring board 80, as shown in FIG. This height is higher than the height of the flash memory FM attached to the wiring board 80. Therefore, the flash memory FM attached to the wiring board 80 does not contact the inside of the upper case 20. On the other hand, the height HC of the contact member 89 and the SATA connector 85 arranged next to the USB connector 88 is slightly higher than the height HM. Accordingly, when the contact member 89 is attached to the lower case 50 of the upper case 20, the contact member 89 comes into contact with the inside of the upper surface 22 of the upper case 20 and is electrically connected. On the other hand, regarding the SATA connector 85, the portion of the upper case 20 corresponding to the connector 85 is cut away, and the upper case 20 does not cover the connector 85. For this reason, the upper case 20 does not contact the connector 85. Moreover, the height HC of the connector 85 is lower than the dimension HM between the inner side of the upper case 20 and the upper surface of the wiring board 80 plus the plate thickness (0.6 mm) of the upper case 20.
That is,
HC <HM + 0.6
Therefore, the connector 85 does not protrude from the upper case 20.

  The SSD 10 of the present embodiment described above conforms to the 2.5 inch hard disk standard, and can be used as is when attaching a normal 2.5 inch hard disk. In addition, raised portions 24A to 27A are provided around the first screw holes 24 to 27, and the upper surface of the upper case 20 has a size that is less than the raised dimensions of the raised portions 24A to 27A. . For this reason, compatibility with a hard disk whose volume is further reduced as compared with the 2.5-inch hard disk standard is ensured. Furthermore, the SSD 10 of the present embodiment has an outer shape of the lower case 50 that is similar to that of a hard disk that is downsized, such as by providing a recess 56 in the bottom surface 52. It is supposed to be even higher.

  Further, the SSD 10 of the present embodiment secures a space for the mounting screws FB1 (FB2) from two directions to enter by providing the recesses 61 to 64, and by the hook 74 provided outside the recess 64, There is an excellent effect that the wiring board 80 can be fixed. Since the support protrusion 68 and the hook 74 sandwiching the wiring board 80 are made of synthetic resin, the wiring board 80 is not excessively stressed or damaged. Insulation is also sufficiently secured.

  Further, in the SSD 10 of this embodiment, since the upper case 20 is formed by sheet metal processing and is electrically connected to the ground of the wiring board 80 through the contact member 89, the influence of external noise can be suppressed, and Noise radiation from the wiring board 80 can also be cut.

  In the SSD 10 of this embodiment, the upper case 20 is provided with the raised portions 24A to 27A, thereby reducing the thickness of the upper case 20 other than the raised portions. Further, the upper surface of the upper case 20 is cut out so that the upper portion of the connector 85 is not covered by the upper case 20. Further, a recess 56 is provided on the bottom surface 52 of the lower case 50. With each of these configurations and in total, the SSD 10 of the present embodiment has a small occupied volume, and a 2.5-inch hard disk further reduced in size while ensuring compatibility with a 2.5-inch hard disk. Can be replaced.

  As mentioned above, although the Example of this invention was described, this invention is not limited to such an Example, Of course, in the range which does not change the summary of this invention, it can implement in a various aspect.

10 ... SSD
DESCRIPTION OF SYMBOLS 20 ... Upper case 22 ... Upper surface 24-27 ... 1st screw hole 24A-27A ... Raised part 28, 29 ... Protrusion part 31-34 ... 2nd screw hole 35-39 ... Tongue piece 41-44 ... Side wall member 50 ... Lower case 52 ... Bottom 54 ... Side wall 56 ... Recess 61-64 ... Recess 65-68 ... Support convex 74 ... Hook 75-79 ... Projection 80 ... Wiring board 85 ... SATA connector 88 ... USB connector 89 ... Contact member 91- 94: Notch 98, 99 ... Convex FB1, FB2 ... Screw FM ... Flash memory

Claims (12)

An external storage device containing a storage medium,
While mounting the storage medium, a wiring board mounted with an external connection connector at one end;
First and second cases covering the wiring board from both sides;
A fixing mechanism for fixing the first case and the second case in a state in which the wiring board is housed therein;
The first case includes a first screw hole for attaching to an external device at a plurality of locations on a surface facing the wiring board,
In the second case,
A screw that protrudes toward the inside of the second case and is screwed into the first screw hole can enter each of a plurality of positions corresponding to the first screw hole of the first case. A wall that secures space;
A plurality of support members for supporting the wiring board;
An external storage device, wherein at least a part of the plurality of wall portions includes a hook that sandwiches the wiring board between the support member and an inner side surface of the second case. The external storage device according to claim 1,
The first or second case includes a plurality of second screw holes in which the screw intrusion direction is different from the first screw hole,
The external storage device in which the wall portion is provided so that the space can be inserted into a screw screwed exclusively into the first and second screw holes. The external storage device according to claim 1 or 2,
The surface of the first case facing the wiring board is raised around the first screw hole by a predetermined dimension, and the first and second cases are fixed by the fixing mechanism. An external storage device in which a dimension from the first screw hole of one case to a bottom surface of the second case is a mounting dimension to the external device. The external storage device according to claim 2,
A side wall that is substantially perpendicular to the surface of the first case facing the wiring board is provided at a position corresponding to at least the wall portion;
An external storage device in which the second screw hole is provided in the side wall. An external storage device according to any one of claims 1 to 4,
The first case is formed by sheet metal processing,
The second case is an external storage device formed by resin molding. The external storage device according to claim 5,
The first case is formed by bending the sheet metal at the peripheral edge of the surface facing the wiring board by bending the sheet metal, and the fixing mechanism is attached to the tongue piece. Provide a part of the engaging part,
An external storage device, wherein the second case is provided with an engaging member that engages with the engaging portion provided on the tongue piece and constitutes the fixing mechanism.   The spring member which electrically connects the ground of the said wiring board and the said 1st case by which the sheet metal processing was carried out was provided in the said 1st case side surface of the said wiring board. External storage device.   The external storage device according to any one of claims 1 to 7, wherein the first case is cut out at a position corresponding to a position where the connector is attached to the wiring board.   The external storage device according to claim 8, wherein the connector is a SATA standard connector.   The external storage device according to any one of claims 1 to 9, wherein the wiring board includes another connector for connecting the external storage device to an external computer, in addition to the connector.   The storage medium is one of a disk device that stores data magnetically, a disk device that stores data magneto-optically, a semiconductor storage device that electrically stores data, and an optical storage device that optically stores data. 11. The external storage device according to any one of claims 1 to 10. A case for an external storage device capable of incorporating a wiring board with a storage medium attached and an external connection connector attached to one end,
First and second cases covering the wiring board from both sides;
A fixing mechanism for fixing the first case and the second case in a state in which the wiring board is housed therein;
The first case includes a first screw hole for attaching to an external device at a plurality of locations on a surface facing the wiring board,
In the second case,
A screw that protrudes toward the inside of the second case and is screwed into the first screw hole can enter each of a plurality of positions corresponding to the first screw hole of the first case. A wall that secures space;
A plurality of support members for supporting the wiring board;
A case for an external storage device, wherein at least a part of the plurality of wall portions includes a hook that sandwiches the wiring board between the support member and an inner side surface of the second case.

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