Electronic devices and components

Abstract

To provide an electronic apparatus in which an electronic component can be more reliably mounted on a substrate.SOLUTION: An electronic apparatus according to one embodiment includes a substrate and an electronic component. The substrate has a first surface directed to a first direction, and is provided with a first hole and a second hole. The electronic component includes a base, and a first projection and a second projection that are projected from the base and are partially housed in the first hole and the second hole. In a second direction, an end of the first projection is separated farther from the first surface than the end of the second projection. The first projection and the second projection have a first inclined surface and a second inclined surface that extend from the end obliquely with respect to the first direction. A length of the first inclined surface in a third direction orthogonal to the first direction is longer than a length of the second inclined surface in the third direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] FIELD OF THE INVENTION The present invention relates to electronic devices and electronic components. [Background technology]

[0002] In electronic devices, various electronic components are mounted on a substrate. The electronic components may have protrusions that protrude from their bases. When the electronic components are mounted on the substrate, the protrusions are inserted into holes provided in the substrate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] U.S. Patent No. 9,118,152 Summary of the Invention [Problem to be solved by the invention]

[0004] When mounting an electronic component on a board, the position of the protrusion may be misaligned with the position of the hole, causing the protrusion to abut against the surface of the board and preventing it from being inserted into the hole. In this case, the base of the electronic component may be spaced further from the board than desired, making it difficult to mount the electronic component on the board.

[0005] One example of a problem to be solved by the present invention is to provide an electronic device and an electronic component that can more reliably mount the electronic component on a substrate. [Means for solving the problem]

[0006] According to one embodiment, an electronic device includes a substrate and an electronic component. The substrate has a first surface facing a first direction and is provided with a first hole opening into the first surface and a second hole opening into the first surface at a position spaced from the first hole. The electronic component has a base located on the first surface or spaced from the first surface in the first direction, a first protrusion protruding from the base and at least partially housed in the first hole, and a second protrusion protruding from the base and at least partially housed in the second hole, and is mounted on the substrate. In a direction perpendicular to the first surface, a first end provided at an end of the first protrusion in a second direction opposite to the first direction is farther from the first surface in the second direction than a second end provided at an end of the second protrusion in the second direction. The first protrusion has a first slope extending obliquely from the first end with respect to the first direction. The second protrusion has a second slope extending from the second end obliquely with respect to the first direction, and the length of the first slope in a third direction perpendicular to the first direction is longer than the length of the second slope in the third direction. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an exemplary perspective view showing a hard disk drive (HDD) according to the first embodiment. [Figure 2] FIG. 2 is an exemplary exploded perspective view of the HDD of the first embodiment. [Figure 3] FIG. 3 is an exemplary perspective view showing a part of the HDD of the first embodiment in an exploded state. [Figure 4] FIG. 4 is an exemplary perspective view showing a portion of the interface (I / F) connector and a mounting area of ​​the first embodiment. [Figure 5] FIG. 5 is an exemplary bottom view illustrating the I / F connector of the first embodiment. [Figure 6] FIG. 6 is an exemplary cross-sectional view showing a part of the printed circuit board (PCB) and a part of the I / F connector according to the first embodiment, taken along line F6-F6 in FIG. [Figure 7] FIG. 7 is an exemplary plan view showing a part of the PCB and an I / F connector in the mounting process of the first embodiment. [Figure 8] FIG. 8 is an exemplary cross-sectional view showing a part of the PCB and a part of the I / F connector in the mounting process of the first embodiment. [Figure 9] FIG. 9 is an exemplary perspective view showing a part of an I / F connector and a mounting area according to the second embodiment. [Figure 10] FIG. 10 is an exemplary bottom view showing the I / F connector according to the third embodiment. [Figure 11] FIG. 11 is an exemplary perspective view showing a part of a substrate and an electronic component 402 of an electronic device according to the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) The first embodiment will be described below with reference to FIGS. 1 to 8. In this specification, components according to the embodiment and descriptions of the components may be described using multiple expressions. The components and their descriptions are merely examples and are not limited by the expressions in this specification. The components may also be identified by names different from those in this specification. Furthermore, the components may also be described using expressions different from those in this specification.

[0009] FIG. 1 is an exemplary perspective view showing a hard disk drive (HDD) 10 according to the first embodiment. The HDD 10 is mounted in, for example, an external device 1. The HDD 10 is an example of an electronic device and may also be called a storage device or a disk device. Note that the electronic device is not limited to the HDD 10, and may be a solid state drive (SSD) or other device.

[0010] The external device 1 is, for example, a computer such as a personal computer, a supercomputer, a server, a television receiver, or a game console, or a device such as an external hard drive (HDD). The external device 1 may also be called a host device.

[0011] As shown in the drawings, for convenience, the X-axis, Y-axis, and Z-axis are defined in this specification. The X-axis, Y-axis, and Z-axis are perpendicular to one another. The X-axis is aligned along the width of the HDD 10. The Y-axis is aligned along the length of the HDD 10. The Z-axis is aligned along the thickness of the HDD 10.

[0012] Furthermore, in this specification, the X direction, Y direction, and Z direction are defined. The X direction is a direction along the X axis, and includes the +X direction indicated by the X axis arrow and the -X direction opposite to the X axis arrow. The Y direction is a direction along the Y axis, and includes the +Y direction indicated by the Y axis arrow and the -Y direction opposite to the Y axis arrow. The Z direction is a direction along the Z axis, and includes the +Z direction indicated by the Z axis arrow and the -Z direction opposite to the Z axis arrow.

[0013] 2 is an exemplary exploded perspective view showing the HDD 10 of the first embodiment. As shown in FIG. 2, the HDD 10 includes a housing 11, multiple magnetic disks 12, a spindle motor 13, multiple magnetic heads 15, an actuator assembly 16, a voice coil motor (VCM) 17, and a flexible printed circuit board (FPC) 19. The magnetic disks 12 may also be referred to as a storage medium.

[0014] The housing 11 has a base 21, an inner cover 22, and an outer cover 23. The base 21 is a container with a bottom, and has a bottom wall 25 and a side wall 26. The bottom wall 25 is formed in the shape of a substantially rectangular (quadrilateral) plate extending along the XY plane. The side wall 26 protrudes from the outer edge of the bottom wall 25 in the +Z direction.

[0015] The inner cover 22 is attached to the end of the side wall 26 in the +Z direction by, for example, screws. The outer cover 23 covers the inner cover 22 and is fixed to the end of the side wall 26 in the +Z direction by, for example, welding.

[0016] The housing 11 accommodates a magnetic disk 12, a spindle motor 13, a magnetic head 15, an actuator assembly 16, a voice coil motor 17, and an FPC 19.

[0017] The magnetic disk 12 is, for example, a disk having a magnetic recording layer provided on at least one of its upper and lower surfaces. The diameter of the magnetic disk 12 is, for example, 3.5 inches, but is not limited to this example. The spindle motor 13 supports and rotates the multiple magnetic disks 12 stacked at intervals.

[0018] The magnetic head 15 records and reproduces information on the recording layer of the magnetic disk 12. In other words, the magnetic head 15 reads and writes information from and to the magnetic disk 12. The magnetic disk 12 stores the information written to the magnetic head 15. The magnetic head 15 is supported by an actuator assembly 16.

[0019] The actuator assembly 16 is rotatably supported by a support shaft 33 disposed at a position separated from the magnetic disk 12. The VCM 17 rotates the actuator assembly 16 and places it at a desired position.

[0020] The actuator assembly 16 includes an actuator block 35, a plurality of arms 36, and a plurality of head suspension assemblies (suspensions) 37. The suspensions 37 may also be referred to as head gimbal assemblies (HGA).

[0021] The actuator block 35 is rotatably supported on the support shaft 33 via, for example, a bearing. The arms 36 protrude from the actuator block 35 in a direction substantially perpendicular to the support shaft 33. The arms 36 are arranged at intervals in the direction in which the support shaft 33 extends. Each of the arms 36 is formed in a plate shape that can enter the gap between adjacent magnetic disks 12.

[0022] The suspensions 37 are attached to the tip portions of the corresponding arms 36 and protrude from the arms 36. Each of the suspensions 37 has a base plate 41, a load beam 42, and a flexure 43. Furthermore, the magnetic head 15 is attached to the suspensions 37.

[0023] The base plate 41 and the load beam 42 are made of, for example, stainless steel. The base plate 41 is formed in a plate shape and is attached to the tip of the arm 36. The load beam 42 is formed in a plate shape that is thinner than the base plate 41. The load beam 42 is attached to the tip of the base plate 41 and protrudes from the base plate 41.

[0024] The flexure 43 is formed in a long, narrow strip shape. However, the shape of the flexure 43 is not limited to this example. The flexure 43 is a laminated plate having a metal plate (backing layer) such as stainless steel, an insulating layer formed on the metal plate, a conductive layer formed on the insulating layer and constituting a plurality of wirings (wiring patterns), and a protective layer (insulating layer) covering the conductive layer.

[0025] A displaceable gimbal portion (elastic support portion) is provided at one end of the flexure 43. The gimbal portion is positioned on the load beam 42. The magnetic head 15 is mounted on the gimbal portion. The other end of the flexure 43 is connected to the FPC 19. As a result, the FPC 19 is electrically connected to the magnetic head 15 via the wiring of the flexure 43.

[0026] 3 is an exemplary exploded perspective view of a portion of the HDD 10 of the first embodiment. As shown in FIG. 3, the HDD 10 further includes a printed circuit board (PCB) 51, a relay connector 52, an interface (I / F) connector 53, and a plurality of screws 55. The PCB 51 is an example of a substrate. The I / F connector 53 is an example of an electronic component. Note that the electronic component is not limited to the I / F connector 53, and may be various electronic components.

[0027] The PCB 51 is located outside the housing 11. The PCB 51 is, for example, a rigid board such as a glass epoxy board, and may be a multilayer board or a build-up board. The PCB 51 extends along the XY plane and is attached to the bottom wall 25 by, for example, a plurality of screws 55. Note that the PCB 51 may also be attached to the bottom wall 25 by other methods, such as snap-fitting with hooks.

[0028] The PCB 51 has a mounting surface 51a and an outer surface 51b. The mounting surface 51a is an example of a first surface. The mounting surface 51a is formed substantially flat along the XY plane and faces the +Z direction. The +Z direction is an example of a first direction. When the PCB 51 is attached to the bottom wall 25, the mounting surface 51a faces the bottom wall 25. The outer surface 51b is located on the opposite side of the mounting surface 51a.

[0029] The relay connector 52 and the I / F connector 53 are located outside the housing 11 and are mounted on a mounting surface 51a of the PCB 51. The PCB 51 may further be mounted with various memories such as RAM, ROM, and buffer memory, a controller, a servo controller, a coil, a capacitor, and other electronic components.

[0030] The relay connector 52 is connected to the FPC 19, for example, through a hole penetrating the bottom wall 25. As a result, the PCB 51 is electrically connected to the FPC 19 via the relay connector 52. Furthermore, the PCB 51 is electrically connected to the magnetic head 15 via the relay connector 52, the FPC 19, and the flexure 43.

[0031] The I / F connector 53 is a connector that complies with an interface standard such as Serial ATA (SATA). Note that the I / F connector 53 may also comply with serial attached SCSI (SAS), NVM express (NVMe), or other interface standards.

[0032] The I / F connector 53 is connected to the I / F connector 1a of the external device 1. For example, the controller of the PCB 51 can communicate with the external device 1 via the I / F connector 53 and the I / F connector 1a.

[0033] The structure relating to the mounting of the I / F connector 53 will be described in detail below. A notch 61 is provided in the base 21 of the housing 11. The notch 61 is provided at the corner between the bottom wall 25 and the side wall 26, and opens to the end 21a of the base 21 in the +Y direction. The base 21 has two support surfaces 62. The support surfaces 62 are part of the bottom surface of the notch 61 in the +Z direction.

[0034] The support surface 62 is also part of the outer surface of the base 21 and faces the outside of the housing 11. For example, the support surface 62 is formed substantially flat along the XY plane and faces the -Z direction. The support surface 62 faces the mounting surface 51a of the PCB 51 via a gap. Note that the support surfaces 62 are not limited to this example. The two support surfaces 62 are spaced apart from each other in the X direction.

[0035] Two screw holes 63 are provided in the base 21. A corresponding one of the two screw holes 63 opens in each of the two support surfaces 62. An internal thread is provided on the inner surface of the screw hole 63.

[0036] The PCB 51 has a plurality of electrodes 65 and two mounting areas 66. The I / F connector 53 is mounted on the PCB 51 by being electrically connected to the electrodes 65. Furthermore, the I / F connector 53 is attached to the mounting areas 66, thereby reinforcing the connection between the I / F connector 53 and the PCB 51.

[0037] A plurality of electrodes 65 are provided on the mounting surface 51a. The electrodes 65 are, for example, pads provided on the mounting surface 51a. The electrodes 65 may also be through-holes that open on the mounting surface 51a. The electrodes 65 are electrically connected to, for example, various components mounted on the PCB 51 via wiring patterns provided on the PCB 51.

[0038] The attachment areas 66 are parts of the PCB 51. Each of the two attachment areas 66 has a part of the mounting surface 51a and a part of the outer surface 51b. The two attachment areas 66 are spaced apart from each other in the X direction.

[0039] Fig. 4 is an exemplary perspective view showing a portion of the I / F connector 53 and the mounting area 66 of the first embodiment. Fig. 4 shows one of the two mounting areas 66. As shown in Fig. 4, a through hole 71 and four through holes 72 are provided in each of the two mounting areas 66. Therefore, a total of eight through holes 72 are provided in the PCB 51. Note that the number of through holes 71 and through holes 72 is not limited to this example.

[0040] The four through holes 72 may be individually referred to as through holes 72A, 72B, 72C, and 72D. Through hole 72A is an example of a first hole. Through holes 72B, 72C, and 72D are examples of second holes. Note that explanations common to through holes 72A, 72B, 72C, and 72D will be described as explanations for through hole 72.

[0041] The through-holes 71 and the through-holes 72 penetrate the PCB 51 substantially in the Z direction and open to the mounting surface 51a and the outer surface 51b, respectively. The through-holes 71 and the through-holes 72 are spaced apart from each other in the direction along the mounting surface 51a.

[0042] The through hole 71 has a substantially circular cross section and is arranged substantially concentrically (coaxially) with the screw hole 63. In other words, the through hole 71 is arranged at substantially the same position as the screw hole 63 when viewed in the Z direction. The cross section of the through hole 71 is a cross section perpendicular to the Z direction in which the through hole 71 extends. The diameter of the through hole 71 is longer than the outer diameter of the screw hole 63.

[0043] Each of the multiple through holes 72 has a substantially rectangular cross section extending substantially in the Y direction. Note that the through holes 72 may have a cross section of another shape, such as a circle. The through holes 72 are arranged around the penetrating hole 71.

[0044] The through holes 72A and 72B are arranged side by side in the Y direction with a gap therebetween. The through holes 72C and 72D are arranged side by side in the Y direction with a gap therebetween. The through holes 72A and 72B and the through holes 72C and 72D are arranged side by side in the X direction with a gap therebetween. The through holes 72A and 72C are closer to an edge 51c of the PCB 51 provided at the end of the PCB 51 in the +Y direction than the through holes 72B and 72D.

[0045] The PCB 51 further has inner surfaces 51d of the plurality of through holes 72. The inner surfaces 51d are formed by metal plating. The plating forming the inner surfaces 51d is electrically connected to the ground pattern of the PCB 51, for example.

[0046] Fig. 5 is an exemplary bottom view showing the I / F connector 53 of the first embodiment. As shown in Fig. 5, the I / F connector 53 is formed, for example, in a substantially rectangular parallelepiped shape extending substantially in the X direction. For example, the length of the I / F connector 53 in the X direction is longer than the length in the Y direction and longer than the length in the Z direction.

[0047] The I / F connector 53 has a base 81, a plurality of connection terminals 82, a plurality of mounting terminals 83, two mounting plates 84, and two positioning pins 85. The mounting terminals 83 are an example of a terminal. The mounting plate 84 is an example of a mounting portion. The positioning pin 85 is an example of a third protrusion and a protrusion.

[0048] The base 81 is formed in a substantially rectangular parallelepiped shape extending substantially in the X direction. The base 81 is made of an insulating material such as synthetic resin. However, the shape and material of the base 81 are not limited to this example.

[0049] The base 81 is located on the mounting surface 51a of the PCB 51. The base 81 may be spaced apart from the mounting surface 51a in the +Z direction. In this embodiment, the base 81 is located between the housing 11 and the PCB 51.

[0050] The base 81 has a connecting portion 91, two reinforcing portions 92, and two positioning portions 93. The connecting portion 91, the reinforcing portion 92, and the positioning portions 93 are each part of the base 81 and are formed integrally with it.

[0051] A socket 95 is provided on the connection portion 91. The socket 95 is a notch that opens at an end 91a of the connection portion 91 in the +Y direction. A connection terminal 82 is arranged on the socket 95. The connection terminal 82 is a terminal for communication and power supply that complies with the SATA standard. Note that the connection terminal 82 is not limited to this example.

[0052] The connection terminal 82 extends in the +Y direction from the connection portion 91 inside the socket 95. For example, when the I / F connectors 1a and 53 are mated with each other, the connection terminal 82 of the I / F connector 53 is electrically connected to the I / F connector 1a.

[0053] The mounting terminals 83 extend, for example, from an end 91b of the connection portion 91 in the -Y direction. Each of the mounting terminals 83 is electrically connected to a corresponding one of the multiple connection terminals 82 inside the connection portion 91. Each of the mounting terminals 83 is joined to a corresponding one of the multiple electrodes 65 of the PCB 51 by, for example, soldering. In this way, the I / F connector 53 is mounted on the PCB 51.

[0054] The two reinforcing portions 92 protrude from both ends of the connecting portion 91 in the X direction. Therefore, the connecting portion 91 is located between the two reinforcing portions 92. Each of the two reinforcing portions 92 is formed in a substantially rectangular parallelepiped shape. Note that the reinforcing portions 92 may be formed in other shapes. The reinforcing portions 92 are located between the mounting region 66 of the PCB 51 and the support surface 62 of the base 21.

[0055] Each of the two reinforcing portions 92 has an upper surface 92a shown in Fig. 3 and a lower surface 92b shown in Fig. 44. Note that the expressions "upper" and "lower" in this embodiment are expressions for convenience based on the orientation of the HDD 10 in Figs. 1 to 3, and do not limit the orientation, position, mode of use, or other conditions.

[0056] As shown in Fig. 3, the upper surface 92a is formed substantially flat along the XY plane and faces the +Z direction. The upper surface 92a faces the corresponding support surface 62. The lower surface 92b is located on the opposite side of the upper surface 92a. As shown in Fig. 4, the lower surface 92b is formed substantially flat along the XY plane and faces the -Z direction. The lower surface 92b faces the mounting surface 51a of the attachment region 66.

[0057] A through hole 97 is provided in each of the two reinforcing portions 92. The through hole 97 has a substantially circular cross section and is arranged substantially concentrically (coaxially) with the screw hole 63 and the through hole 71. In other words, the through hole 97 is arranged at substantially the same position as the screw hole 63 and the through hole 71 when viewed in the Z direction. The diameter of the through hole 97 is the same as or longer than the outer diameter of the screw hole 63. Furthermore, the diameter of the through hole 97 is shorter than the diameter of the through hole 71.

[0058] The upper surface 92a of the reinforcing portion 92 abuts against the corresponding support surface 62. As a result, the through hole 97 communicates with the screw hole 63. Note that a gap or other object may exist between the upper surface 92a and the support surface 62.

[0059] 5, the two positioning portions 93 protrude from the end portion 91b of the connection portion 91. The two positioning portions 93 are spaced apart from each other in the X direction. At least one of the multiple mounting terminals 83 is located between the two positioning portions 93.

[0060] Each of the two positioning portions 93 has a lower surface 93a. The lower surface 93a is an example of a second surface. The lower surface 93a is formed substantially flat along the XY plane and faces the -Z direction. The lower surface 93a faces the mounting surface 51a of the PCB 51.

[0061] 4, the mounting plates 84 are made of, for example, pressed metal plates. Each of the two mounting plates 84 has a plate portion 101, four curved portions 102, and four reinforcing protrusions 103. However, the mounting plates 84 are not limited to this example.

[0062] The four reinforcing protrusions 103 may be individually referred to as reinforcing protrusions 103A, 103B, 103C, and 103D. Reinforcing protrusion 103A is an example of a first protrusion. Reinforcing protrusions 103B, 103C, and 103D are examples of a second protrusion. Note that a description common to reinforcing protrusions 103A, 103B, 103C, and 103D will be described as a description of reinforcing protrusion 103.

[0063] The plate portion 101 is formed in a substantially quadrangular plate shape (rectangular parallelepiped shape) extending along the XY plane. The plate portion 101 has an upper surface 101a, a lower surface 101b, and four side surfaces 101c, 101d, 101e, and 101f.

[0064] The upper surface 101a is formed substantially flat along the XY plane and faces in the +Z direction. The upper surface 101a faces the lower surface 92b of the corresponding reinforcing portion 92. The lower surface 101b is located on the opposite side of the upper surface 101a. The lower surface 101b is formed substantially flat along the XY plane and faces in the -Z direction. The lower surface 101b faces the mounting surface 51a of the attachment region 66.

[0065] The four side surfaces 101c, 101d, 101e, and 101f are edges of the rectangular parallelepiped plate portion 101. The four side surfaces 101c, 101d, 101e, and 101f are provided between the edge of the upper surface 101a and the edge of the lower surface 101b.

[0066] The side surfaces 101c and 101d extend in the Y direction (+Y direction and -Y direction). The side surfaces 101c and 101d may extend in different directions, or may have projections and recesses. The side surface 101c faces outward from the I / F connector 53 in the X direction. The side surface 101d is located opposite the side surface 101c and faces inward from the I / F connector 53 in the X direction. Therefore, the side surfaces 101d of the two mounting plates 84 face each other with a gap between them.

[0067] The side surfaces 101e and 101f extend in the X direction. The side surfaces 101e and 101f may extend in different directions, or may have irregularities. The side surface 101e extends between the end of the side surface 101c in the +Y direction and the end of the side surface 101d in the +Y direction, and faces the +Y direction. The side surface 101f is located on the opposite side of the side surface 101e. The side surface 101f extends between the end of the side surface 101c in the -Y direction and the end of the side surface 101d in the -Y direction, and faces the -Y direction.

[0068] A through hole 105 is provided in the plate portion 101. The through hole 105 penetrates the plate portion 101 substantially in the Z direction and opens to the upper surface 101a and the lower surface 101b. The through hole 105 has a substantially circular cross section and is arranged substantially concentrically (coaxially) with the screw hole 63 and the through holes 71 and 97. The diameter of the through hole 105 is the same as or longer than the outer diameter of the screw hole 63. The diameter of the through hole 105 is also shorter than the diameter of the through hole 71.

[0069] The plate portion 101 is disposed on the lower surface 92b of the corresponding reinforcing portion 92 and attached to the reinforcing portion 92. As a result, the plate portion 101 is positioned between the mounting surface 51a of the attachment region 66 and the support surface 62 of the base 21.

[0070] By attaching the plate portions 101 to the corresponding reinforcing portions 92, the two mounting plates 84 are attached to the two reinforcing portions 92 at positions spaced apart from each other in the X direction. The X direction is an example of a fourth direction.

[0071] The through hole 105 of the plate portion 101 communicates with the through hole 97 of the reinforcing portion 92. Therefore, the through hole 97 communicates with the screw hole 63 and the through hole 105. Furthermore, the through hole 105 of the plate portion 101 communicates with the through hole 71 of the PCB 51 via a gap.

[0072] The curved portion 102 and the reinforcing protrusion 103 are formed, for example, by bending a part of the metal plate that forms the plate portion 101. Note that the curved portion 102 and the reinforcing protrusion 103 may also be formed by other methods.

[0073] Each of the four curved portions 102 is interposed between a corresponding one of the four reinforcing protrusions 103 and the plate portion 101. The curved portions 102 are bent in an arc shape. One end of each curved portion 102 is connected to the plate portion 101. A corresponding reinforcing protrusion 103 protrudes from the other end of each curved portion 102. Note that the curved portions 102 may be omitted, and the reinforcing protrusion 103 may protrude directly from the plate portion 101.

[0074] Each of the four curved portions 102 is connected to the side surface 101c or the side surface 101d of the plate portion 101. For example, the two curved portions 102 connected to the reinforcing protrusions 103A and 103B protrude from the side surface 101c, and the two curved portions 102 connected to the reinforcing protrusions 103C and 103D protrude from the side surface 101d. Therefore, the reinforcing protrusions 103A and 103B are positioned further outward from the I / F connector 53 in the X direction than the reinforcing protrusions 103C and 103D. Note that the arrangement of the curved portions 102 and the reinforcing protrusions 103 is not limited to this example.

[0075] The reinforcing protrusions 103A and 103B are spaced apart from each other in the Y direction. The two reinforcing protrusions 103C and 103D are spaced apart from each other in the Y direction. Furthermore, the reinforcing protrusions 103A and 103B and the reinforcing protrusions 103C and 103D are spaced apart from each other in the X direction. Therefore, the multiple reinforcing protrusions 103 are spaced apart from each other.

[0076] The reinforcing protrusions 103A and 103C are disposed near the side surface 101e. Therefore, the reinforcing protrusions 103A and 103C are closer to the side surface 101e than to the centers of the side surfaces 101c and 101d. Furthermore, the reinforcing protrusions 103B and 103D are disposed near the side surface 101f. Therefore, the reinforcing protrusions 103B and 103D are closer to the side surface 101f than to the centers of the side surfaces 101c and 101d.

[0077] Each of the four reinforcing protrusions 103 protrudes in the -Z direction from a corresponding one of the four curved portions 102. The -Z direction is an example of the second direction and the fifth direction. The reinforcing protrusions 103 are formed in a substantially rectangular plate shape (cuboid shape) extending along the YZ plane. Therefore, the length of the reinforcing protrusions 103 in the Y direction is longer than the length of the reinforcing protrusions 103 in the X direction.

[0078] Fig. 6 is an exemplary cross-sectional view showing a part of the PCB 51 and a part of the I / F connector 53 of the first embodiment along line F6-F6 in Fig. 5. As shown in Fig. 6, each of the four reinforcing protrusions 103 is inserted into a corresponding one of the four through holes 72.

[0079] The reinforcing projection 103A is at least partially received in the through-hole 72A. Furthermore, the reinforcing projections 103B, 103C, and 103D are at least partially received in the corresponding through-holes 72B, 72C, and 72D.

[0080] In both the X direction and the Y direction, the length of the reinforcing protrusion 103 is shorter than the length of the through hole 72. The difference between the length of the through hole 72 in the Y direction and the length of the reinforcing protrusion 103 in the Y direction is smaller than the difference between the length of the through hole 72 in the X direction and the length of the reinforcing protrusion 103 in the X direction. Note that the dimensions of the through hole 72 and the reinforcing protrusion 103 are not limited to this example.

[0081] Each of the four reinforcing protrusions 103 has an end face 111, two side faces 112, and two tapered faces 113. The end face 111 of the reinforcing protrusion 103A is an example of a first end and end face. The tapered face 113 of the reinforcing protrusion 103A is an example of a first inclined face and tapered face. The end faces 111 of the reinforcing protrusions 103B, 103C, and 103D are an example of a second end. The tapered faces 113 of the reinforcing protrusions 103B, 103C, and 103D are an example of a second inclined face. The tapered faces 113 may also be referred to as edges.

[0082] The end surface 111 is provided at the end of the reinforcing protrusion 103 in the -Z direction. The end surface 111 is formed to be approximately flat along the XY plane and faces the -Z direction. The shape of the end surface 111 may be another shape, such as an arc-shaped curved surface.

[0083] The two side surfaces 112 are provided on both ends of the reinforcing protrusion 103 in the Y direction. In other words, the two side surfaces 112 are spaced apart from each other in the Y direction. The side surfaces 112 extend in the -Z direction from the curved portion 102. That is, the two side surfaces 112 extend approximately parallel to each other.

[0084] Each of the two tapered surfaces 113 extends between a corresponding one of the two side surfaces 112 and the end surface 111. Therefore, the two tapered surfaces 113 are spaced apart from each other in the Y direction. The Y direction is an example of the third direction and the sixth direction.

[0085] The two tapered surfaces 113 extend from the end of the side surface 112 in the -Z direction toward the end surface 111 so as to approach each other. The end of the tapered surface 113 in the -Z direction is connected to the end surface 111. The end surface 111 extends in the Y direction along the mounting surface 51a of the PCB 51 between the two tapered surfaces 113. In other words, each of the two tapered surfaces 113 extends obliquely from the end surface 111 to the Z direction (+Z direction and -Z direction) so that the width of the reinforcing protrusion 103 in the Y direction tapers toward the end surface 111.

[0086] The reinforcing protrusion 103 provided with the tapered surface 113 has chamfered corners between the end surface 111 and the side surface 112. In this embodiment, the tapered surface 113 extends in a substantially straight line. Note that the tapered surface 113 may extend in a curved line such that each portion of the tapered surface 113 extends obliquely with respect to the Z direction.

[0087] The two tapered surfaces 113 are formed in approximate mirror symmetry. Therefore, the absolute value of the angle between the end surface 111 and one tapered surface 113 is approximately equal to the absolute value of the angle between the end surface 111 and the other tapered surface 113. Furthermore, in the Y direction, the length of one tapered surface 113 is approximately equal to the length of the other tapered surface 113.

[0088] The reinforcing protrusion 103 may have one tapered surface 113. In this case, the tapered surface 113 extends from one side surface 112 toward the other side surface 112. In this example, the tapered surface 113 also extends obliquely from the end surface 111 to the Z direction so that the width of the reinforcing protrusion 103 in the Y direction tapers toward the end surface 111.

[0089] The shapes of the reinforcing protrusions 103B, 103C, and 103D are substantially identical or substantially mirror symmetric to one another. On the other hand, the shape of the reinforcing protrusion 103A differs from the shapes of the reinforcing protrusions 103B, 103C, and 103D as follows.

[0090] In the Z direction, the length of the reinforcing protrusion 103A is longer than the lengths of the reinforcing protrusions 103B, 103C, and 103D. Therefore, in the Z direction, the end face 111 of the reinforcing protrusion 103A is farther away from the mounting surface 51a in the -Z direction than the end faces 111 of the reinforcing protrusions 103B, 103C, and 103D. The Z direction is an example of a direction perpendicular to the first surface.

[0091] The length La of each tapered surface 113 of reinforcing protrusion 103A in the Y direction is longer than the length Lb of each tapered surface 113 of reinforcing protrusion 103B in the Y direction. Also, the length La of each tapered surface 113 of reinforcing protrusion 103A in the Y direction is longer than the lengths of each tapered surface 113 of reinforcing protrusions 103C and 103D in the Y direction.

[0092] The width of the reinforcing protrusion 103A in the Y direction is approximately equal to the width of each of the reinforcing protrusions 103B, 103C, and 103D in the Y direction. Therefore, the length of the end face 111 of the reinforcing protrusion 103A in the Y direction is shorter than the length of the end face 111 of each of the reinforcing protrusions 103B, 103C, and 103D in the Y direction.

[0093] In this embodiment, the absolute value of the angle between the end face 111 and the tapered surface 113 of the reinforcing protrusion 103A is approximately equal to the absolute value of the angle between the end face 111 and the tapered surface 113 of the reinforcing protrusions 103B, 103C, and 103D. Note that the inclination of the tapered surface 113 of the reinforcing protrusion 103A and the inclination of the tapered surface 113 of the reinforcing protrusions 103B, 103C, and 103D may be different from each other.

[0094] In this embodiment, the reinforcing protrusion 103A passes through the through-hole 72A and protrudes from the outer surface 51b of the PCB 51. On the other hand, the reinforcing protrusions 103B, 103C, and 103D do not protrude from the outer surface 51b of the PCB 51. In other words, in the Z direction, the end faces 111 of the reinforcing protrusions 103B, 103C, and 103D are closer to the mounting surface 51a than the outer surface 51b of the PCB 51. Note that the reinforcing protrusions 103B, 103C, and 103D may protrude from the outer surface 51b of the PCB 51.

[0095] Two of the multiple screws 55 pass through the through holes 105 of the plate portion 101 and the through holes 97 of the reinforcing portion 92 and are fitted into the screw holes 63 of the base 21. In this way, the screws 55 attach the I / F connector 53 to the housing 11. The through holes 71 of the PCB 51 avoid the screw heads of the screws 55. Note that the screws 55 may also attach the I / F connector 53 and the PCB 51 to the housing 11.

[0096] The mounting plate 84 is soldered to the PCB 51. For example, solder S joins the plate portion 101 to the pads provided in the mounting region 66, and also joins the reinforcing protrusions 103 to the inner surfaces 51d of the through holes 72. As a result, the I / F connector 53 is mounted in the mounting region 66 of the PCB 51, and the soldered connection between the mounting terminals 83 of the I / F connector 53 and the electrodes 65 of the PCB 51 is reinforced.

[0097] As described above, the reinforcing protrusion 103 protrudes in the -Z direction from the curved portion 102. However, in other words, the reinforcing protrusion 103 protrudes in the -Z direction from the base portion 120 of the I / F connector 53. The base portion 120 is a part of the I / F connector 53 that has the base 81, the connection terminals 82, and the plate portion 101 and curved portion 102 of the mounting plate 84.

[0098] The reinforcing protrusion 103 protrudes from the curved portion 102 of the base 120. The mounting terminal 83 extends from the connection portion 91 of the base 120. In the Z direction, the end face 111 of the reinforcing protrusion 103A is farther away from the end of the base 120 in the -Z direction than the end faces 111 of the reinforcing protrusions 103B, 103C, and 103D. The end of the base 120 is, for example, the end of the curved portion 102 in the -Z direction or the end of the base 81 in the -Z direction.

[0099] 5, the two positioning pins 85 protrude in the -Z direction from the lower surface 93a of a corresponding one of the two positioning portions 93. The positioning pins 85 are formed in a generally truncated cone shape and taper in the -Z direction. Note that the shape of the positioning pins 85 is not limited to this example.

[0100] Two positioning holes 131 and 132 are provided in the PCB 51. The positioning holes 131 and 132 are an example of a third hole. In Fig. 5, the positioning holes 131 and 132 are virtually shown by two-dot chain lines.

[0101] The two positioning holes 131 and 132 each penetrate the PCB 51 substantially in the Z direction and open to the mounting surface 51a and the outer surface 51b. The two positioning holes 131 and 132 are spaced apart from each other in the X direction.

[0102] The cross section of the positioning hole 131 is formed to be approximately circular. The cross section of the positioning hole 132 is formed to be approximately rectangular extending in the X direction. Note that the shapes of the positioning holes 131 and 132 are not limited to this example.

[0103] The cross section of the positioning pin 85 is smaller than the cross section of each of the positioning holes 131, 132. Each of the two positioning pins 85 is at least partially received in a corresponding one of the positioning holes 131, 132.

[0104] In this embodiment, the I / F connector 53 further has two different color portions 141. The different color portions 141 are an example of a first different color portion and a different color portion, and may also be referred to as recognition marks. Each of the two different color portions 141 is provided on an end of a corresponding one of the two positioning pins 85 in the -Z direction.

[0105] The different color portion 141 is part of the base 81. However, the different color portion 141 has a different color from the other portions of the base 81. Therefore, the different color portion 141 has a different color from the lower surface 93a of the positioning portion 93. For example, the color of the base 81 is black, and the color of the different color portion 141 is white.

[0106] The different color portion 141 is, for example, ink applied to the positioning pin 85, a laser-processed part of the positioning pin 85, or a part of the positioning pin 85 on which projections and recesses are formed. Note that the different color portion 141 is not limited to this example.

[0107] The following describes an example of a method for mounting the I / F connector 53 on the PCB 51. Note that the method for mounting the I / F connector 53 on the PCB 51 is not limited to the following method, and other methods may also be used.

[0108] 7 is an exemplary plan view showing a portion of PCB 51 and I / F connector 53 in the mounting process of the first embodiment. As shown in Fig. 7, I / F connector 53 is mounted on PCB 51 by an automatic mounter 150. Automatic mounter 150 has a nozzle 151, an imaging device 152, and a control unit 153.

[0109] The nozzle 151 holds the base 81 of the I / F connector 53. The nozzle 151 holds the base 81, for example, by sucking the end face of the base 81 in the +Z direction. Note that the nozzle 151 may hold the base 81 by other methods. The portion of the nozzle 151 that holds the base 81 extends approximately in the X direction.

[0110] In this embodiment, the nozzle 151 holds the base 81 at approximately the center between the two positioning pins 85 in the X direction. However, the nozzle 151 may hold the base 81 at another position. The nozzle 151 is movable in the X direction, Y direction, and Z direction relative to the PCB 51.

[0111] The imaging device 152 is, for example, a camera. The imaging device 152 is disposed in a position where it can capture an image of the two different color portions 141 of the I / F connector 53 and the PCB 51. The imaging device 152 outputs the captured image to the control unit 153.

[0112] The control unit 153 recognizes the shapes and positions of the PCB 51 and the I / F connector 53 from the images of the PCB 51 and the I / F connector 53 captured by the imaging device 152. The control unit 153 calculates the position (coordinates) of the I / F connector 53 based on the positions of the two different color portions 141 in the images.

[0113] For example, the control unit 153 sets the position of one different color portion 141 in the image to the origin of the position of the I / F connector 53. Furthermore, the control unit 153 sets one axis indicating the attitude of the I / F connector 53 based on the positions of the two different color portions 141. Note that the image recognition by the control unit 153 is not limited to this example.

[0114] The control unit 153 controls the nozzle 151. The control unit 153 moves the nozzle 151 in the X direction and the Y direction in accordance with a program implemented by a processor of the control unit 153. The nozzle 151 moves the I / F connector 53 to a desired position.

[0115] At the desired positions, each of the reinforcing protrusions 103 is disposed above a corresponding one of the through holes 72. Furthermore, the two positioning pins 85 are disposed above a corresponding one of the positioning holes 131, 132.

[0116] Next, the nozzle 151 moves the I / F connector 53 in the −Z direction. As a result, each of the multiple reinforcing protrusions 103 is inserted into a corresponding one of the multiple through holes 72. Also, the two positioning pins 85 are inserted into a corresponding one of the positioning holes 131, 132.

[0117] 8 is an exemplary cross-sectional view showing a portion of the PCB 51 and a portion of the I / F connector 53 in the mounting process of the first embodiment. As shown in Fig. 8, when the reinforcing protrusion 103 is inserted into the through-hole 72, the center of the reinforcing protrusion 103 may be misaligned from the center of the through-hole 72. For example, this misalignment may occur due to the accuracy of image recognition, the dimensional accuracy of the PCB 51 and the I / F connector 53, or slippage of the I / F connector 53 relative to the nozzle 151.

[0118] As a result of the center of the reinforcing protrusion 103 being misaligned from the center of the through hole 72, the end of the through hole 72A in the Y direction and the tapered surface 113 of the reinforcing protrusion 103A may overlap in the Z direction. In this case, when the nozzle 151 moves the I / F connector 53 in the -Z direction, the tapered surface 113 of the reinforcing protrusion 103A comes into contact with the edge of the through hole 72A. At this time, the reinforcing protrusions 103B, 103C, and 103D are spaced apart from the PCB 51.

[0119] When the nozzle 151 further moves the I / F connector 53 in the −Z direction, the tapered surface 113 of the reinforcing protrusion 103A moves the I / F connector 53 in the Y direction so that the center of the reinforcing protrusion 103 approaches the center of the through-hole 72. In other words, the tapered surface 113 of the reinforcing protrusion 103A corrects the position of the I / F connector 53 with respect to the PCB 51.

[0120] After the position of I / F connector 53 relative to PCB 51 has been corrected by reinforcing protrusion 103A, reinforcing protrusions 103B, 103C, and 103D are inserted into through holes 72B, 72C, and 72D. Note that reinforcing protrusions 103B, 103C, and 103D may be inserted into through holes 72B, 72C, and 72D during the correction.

[0121] The ends of the through holes 72B, 72C, and 72D in the Y direction may overlap with the end faces 111 of the reinforcing protrusions 103B, 103C, and 103D in the Z direction. However, the tapered surface 113 of the reinforcing protrusion 103A corrects the position of the I / F connector 53, thereby preventing the end faces 111 of the reinforcing protrusions 103B, 103C, and 103D from abutting against the PCB 51.

[0122] By correcting the position of the I / F connector 53 relative to the PCB 51, the multiple reinforcing protrusions 103 are smoothly inserted into the through holes 72. Next, the mounting terminals 83 are soldered to the electrodes 65. Furthermore, the reinforcing protrusions 103 are joined to the inner surfaces 51d of the through holes 72 with solder S. In this way, the I / F connector 53 is mounted on the PCB 51.

[0123] In the HDD 10 according to the first embodiment described above, the PCB 51 has a mounting surface 51a facing the +Z direction. The PCB 51 is provided with through holes 72A, 72B, 72C, and 72D that open to the mounting surface 51a. The I / F connector 53 has a base 120 and reinforcing protrusions 103A, 103B, 103C, and 103D. The base 120 is located on the mounting surface 51a of the PCB 51 or is spaced apart from the mounting surface 51a in the +Z direction. The reinforcing protrusions 103A, 103B, 103C, and 103D protrude from the base 120. In the Z direction orthogonal to the mounting surface 51a, an end face 111 provided at an end of the reinforcing protrusion 103A in the -Z direction is farther away from the mounting surface 51a in the -Z direction than the end faces 111 provided at the ends of the reinforcing protrusions 103B, 103C, and 103D in the -Z direction. The reinforcing protrusions 103A, 103B, 103C, and 103D have tapered surfaces 113. The tapered surfaces 113 of the reinforcing protrusions 103A, 103B, 103C, and 103D extend obliquely from the end face 111 with respect to the +Z direction. As a result, when the I / F connector 53 is mounted on the PCB 51, the reinforcing protrusion 103A is inserted into the through hole 72A before the reinforcing protrusions 103B, 103C, and 103D are inserted into the through holes 72B, 72C, and 72D. The center of the reinforcing protrusion 103A may be misaligned from the center of the through hole 72A in a direction perpendicular to the +Z direction (e.g., the Y direction). In this case, the tapered surface 113 of the reinforcing protrusion 103A abuts against the edge of the through hole 72A, guiding the reinforcing protrusion 103A into the through hole 72A and correcting the position of the I / F connector 53 relative to the PCB 51. Furthermore, the length of the tapered surface 113 of the reinforcing protrusion 103A in the Y direction, perpendicular to the +Z direction, is longer than the length of the tapered surfaces 113 of the reinforcing protrusions 103B, 103C, and 103D in the Y direction. As a result, even if the center of the reinforcing protrusion 103A is misaligned from the center of the through hole 72A in the Y direction by a distance greater than the length of the tapered surfaces 113 of the reinforcing protrusions 103B, 103C, and 103D, the tapered surface 113 of the reinforcing protrusion 103A can abut against the edge of the through hole 72A.Therefore, in the HDD 10 of this embodiment, the reinforcing protrusion 103A corrects the position of the I / F connector 53 relative to the PCB 51, allowing the reinforcing protrusions 103A, 103B, 103C, and 103D to be more reliably inserted into the through-holes 72A, 72B, 72C, and 72D. For example, if the reinforcing protrusions 103A, 103B, 103C, and 103D are not inserted into the through-holes 72A, 72B, 72C, and 72D, the base 120 may float above the mounting surface 51a, making it difficult to mount the I / F connector 53 on the PCB 51. However, in the HDD 10 of this embodiment, the I / F connector 53 can be more reliably mounted on the PCB 51. Furthermore, in the HDD 10, it is not necessary to increase the length of the reinforcing protrusions 103B, 103C, and 103D in the Z direction, and it is not necessary to increase the length of the tapered surface 113 in the Y direction. Therefore, the HDD 10 can shorten the length of the reinforcing protrusions 103B, 103C, and 103D, and thus can prevent the reinforcing protrusions 103B, 103C, and 103D that pass through the through holes 72B, 72C, and 72D and protrude from the PCB 51 from interfering with other components.

[0124] The I / F connector 53 has two mounting plates 84. Each of the two mounting plates 84 has reinforcing protrusions 103A, 103B, 103C, and 103D, and they are spaced apart in the X direction, which is perpendicular to the +Z and Y directions. On each of the two mounting plates 84, the reinforcing protrusions 103A and 103C are spaced apart in the X direction. For example, when the I / F connector 53 is mounted on the PCB 51 by an automatic mounter 150, it may deviate from a desired position around the rotation axis Ax in FIG. 7, which is perpendicular to the mounting surface 51a. In this case, the more outer a portion of the I / F connector 53 is in the X direction, the more it deviates from the desired position. In this embodiment, the reinforcing protrusion 103A is located further outward from the I / F connector 53 in the X direction than the reinforcing protrusion 103C. In other words, the reinforcing protrusion 103A is located in a position that is more likely to deviate from the desired position than the reinforcing protrusion 103C. This allows the reinforcing protrusion 103A to more effectively correct the position of the I / F connector 53 relative to the PCB 51 in the Y direction.

[0125] The difference between the length of through hole 72A in the Y direction and the length of reinforcing protrusion 103A in the Y direction is smaller than the difference between the length of through hole 72A in the X direction and the length of reinforcing protrusion 103A in the X direction. That is, tapered surface 113 can correct the position of I / F connector 53 relative to PCB 51 in the Y direction, where the dimensional margin of reinforcing protrusion 103A relative to through hole 72A is smaller. Therefore, in HDD 10, reinforcing protrusions 103A, 103B, 103C, and 103D can be more reliably inserted into through holes 72A, 72B, 72C, and 72D.

[0126] The reinforcing protrusion 103A has two tapered surfaces 113 that are spaced apart in the Y direction and extend toward each other toward the end surface 111. The end surface 111 extends along the mounting surface 51a between the two tapered surfaces 113. That is, the reinforcing protrusion 103A is formed so as to taper from both sides toward the substantially flat end surface 111. This allows the tapered surfaces 113 to correct the position of the I / F connector 53 in the Y direction relative to the PCB 51, regardless of whether the I / F connector 53 is misaligned in the +Y direction or the −Y direction relative to the PCB 51. Furthermore, the HDD 10 is able to prevent the tip (end surface 111) from damaging the PCB 51, compared to when the tip of the reinforcing protrusion 103A is pointed toward the mounting surface 51a.

[0127] The PCB 51 has an electrode 65 provided on the mounting surface 51a. The PCB 51 has a positioning hole 131 that opens into the mounting surface 51a. The base 120 has a bottom surface 93a facing the mounting surface 51a. The I / F connector 53 has a mounting terminal 83 and a positioning pin 85. The mounting terminal 83 extends from the base 120 and is joined to the electrode 65. The positioning pin 85 protrudes from the bottom surface 93a and is at least partially housed in the positioning hole 131. The I / F connector 53 further has a different color portion 141. The different color portion 141 is provided at the end of the positioning pin 85 in the -Z direction and has a different color from the bottom surface 93a. Because the different color portion 141 has a different color from the bottom surface 93a, it is easily recognized by image recognition. That is, the position of the positioning pin 85 is easily recognized by image recognition due to the different color portion 141 provided on the positioning pin 85. As a result, the HDD 10 can more accurately align the positioning pin 85 with the positioning hole 131, and therefore can more accurately align the reinforcing protrusions 103A, 103B, 103C, and 103D with the through holes 72A, 72B, 72C, and 72D. That is, the HDD 10 can more accurately position the I / F connector 53 at a desired position on the PCB 51. Therefore, the HDD 10 can prevent the reinforcing protrusions 103A, 103B, 103C, and 103D from misaligning with the positions of the through holes 72A, 72B, 72C, and 72D. Furthermore, the HDD 10 can reduce the size of the positioning holes 131 and 132.

[0128] Furthermore, in the HDD 10 of this embodiment, the positioning pin 85 can be inserted more reliably into the positioning hole 131. For example, if the positioning pin 85 is not inserted into the positioning hole 131, the base 120 may float above the mounting surface 51a, making it difficult to mount the I / F connector 53 on the PCB 51. However, in the HDD 10 of this embodiment, the I / F connector 53 can be mounted more reliably on the PCB 51.

[0129] In the first embodiment described above, the length of reinforcing protrusion 103A is longer than the lengths of reinforcing protrusions 103B, 103C, and 103D. However, for example, reinforcing protrusion 103A may be set to be longer on one mounting plate 84, and reinforcing protrusion 103B may be set to be longer on the other mounting plate 84. In this case, the HDD 10 can have two mounting plates 84 with the same shape.

[0130] (Second embodiment) The second embodiment will be described below with reference to Fig. 9. In the following description of the embodiments, components having the same functions as components already described are given the same reference numerals as the components already described, and further description may be omitted. Furthermore, components given the same reference numerals do not necessarily have all the same functions and properties, and may have different functions and properties according to each embodiment.

[0131] 9 is an exemplary perspective view showing a portion of an I / F connector 53 and a mounting region 66 according to the second embodiment. As shown in FIG. 9, in the second embodiment, each of the two mounting plates 84 has four reinforcing protrusions 203 (203A, 203B, 203C, 203D) instead of the reinforcing protrusions 103 (103A, 103B, 103C, 103D). The reinforcing protrusions 203 (203A, 203B, 203C, 203D) are substantially the same as the reinforcing protrusions (103A, 103B, 103C, 103D) of the first embodiment, except for the points described below.

[0132] The shapes of the reinforcing protrusions 203A, 203B, and 203D are substantially identical or substantially mirror symmetric to one another, whereas the shape of the reinforcing protrusion 203C is different from the shapes of the reinforcing protrusions 203A, 203B, and 203D.

[0133] The shape of the reinforcing protrusion 203A in the second embodiment is, for example, substantially the same as or substantially mirror-symmetric to the shape of the reinforcing protrusion 103B in the first embodiment. The shape of the reinforcing protrusion 203C in the second embodiment is, for example, substantially the same as or substantially mirror-symmetric to the shape of the reinforcing protrusion 103A in the first embodiment.

[0134] In the second embodiment, the length of the reinforcing protrusion 203C in the Z direction is longer than the lengths of each of the reinforcing protrusions 203A, 203B, and 203D in the Z direction. Therefore, in the Z direction, the end face 111 of the reinforcing protrusion 203C is farther away from the mounting surface 51a and the end of the base 120 in the -Z direction than the end faces 111 of each of the reinforcing protrusions 203A, 203B, and 203D.

[0135] Furthermore, in the second embodiment, the length of each tapered surface 113 of the reinforcing protrusion 203C in the Y direction is longer than the length of each tapered surface 113 of the reinforcing protrusions 203A, 203B, and 203D in the Y direction. The length of the end face 111 of the reinforcing protrusion 203C in the Y direction is shorter than the length of each end face 111 of the reinforcing protrusions 203A, 203B, and 203D in the Y direction.

[0136] As described above, in the second embodiment, the reinforcing protrusion 203C is an example of a first protrusion, and the reinforcing protrusions 203A, 203B, and 203D are examples of second protrusions. The reinforcing protrusion 203C is located more inward of the I / F connector 53 in the X direction than the reinforcing protrusions 203A and 203B.

[0137] In the HDD 10 of the second embodiment described above, the tapered surface 113 of the reinforcing protrusion 203C abuts against the edge of the through-hole 72C, thereby guiding the reinforcing protrusion 203C into the through-hole 72C and correcting the position of the I / F connector 53 relative to the PCB 51 in the Y direction. The reinforcing protrusion 203C is positioned more inward of the I / F connector 53 in the X direction than the reinforcing protrusion 203A. This increases the range around the rotation axis Ax over which the reinforcing protrusion 203C can correct the position of the I / F connector 53 relative to the PCB 51, compared to when the reinforcing protrusion 203C is positioned more outward of the I / F connector 53 in the X direction than the reinforcing protrusion 203A. Therefore, the reinforcing protrusion 203C can more effectively correct the position of the I / F connector 53 relative to the PCB 51 in the Y direction.

[0138] (Third embodiment) The third embodiment will be described below with reference to Fig. 10. Fig. 10 is an exemplary bottom view showing an I / F connector 53 according to the third embodiment. As shown in Fig. 10, in the third embodiment, the I / F connector 53 has two different color portions 341 instead of the different color portion 141. The different color portion 341 is an example of a second different color portion and a different color portion.

[0139] The two different color portions 341 are provided adjacent to corresponding ones of the two positioning pins 85. One different color portion 341 is provided on the lower surface 93a of one positioning portion 93. The other different color portion 341 is provided on the lower surface 93a of the other positioning portion 93.

[0140] The different color portion 341 has a different color from the other portions of the lower surface 93a. For example, the color of the different color portion 341 is white. The different color portion 341 is, for example, ink applied to the lower surface 93a, a portion of the lower surface 93a that has been laser-processed, or a portion of the lower surface 93a on which irregularities are formed. Note that the different color portion 341 is not limited to this example.

[0141] The distance between each of the two different color portions 341 and the corresponding positioning pin 85 is shorter than the distance between the different color portion 341 and the mounting terminal 83. In other words, the different color portion 341 is closer to the positioning pin 85 than to the mounting terminal 83. Furthermore, the distance between each of the two different color portions 341 and the corresponding positioning pin 85 is shorter than the distance between the mounting terminal 83 and the positioning pin 85.

[0142] In the third embodiment, the control unit 153 of the automatic mounter 150 recognizes the positions of the two different color portions 341 in the image and calculates the positions of the two positioning pins 85. The control unit 153 sets the position of one of the different color portions 341 or the calculated position of one of the positioning pins 85 as the origin of the position of the I / F connector 53. Note that image recognition by the control unit 153 is not limited to this example.

[0143] In the HDD 10 of the third embodiment described above, the I / F connector 53 further includes a different color portion 341. The different color portion 341 is provided on the lower surface 93a, has a different color from the other portions of the lower surface 93a, and is closer to the positioning pin 85 than the mounting terminal 83. The distance between the different color portion 341 and the positioning pin 85 is shorter than the distance between the mounting terminal 83 and the positioning pin 85. Because the different color portion 341 is a different color from the other portions of the lower surface 93a, it is easily recognized by image recognition. In other words, the different color portion 341 provided near the positioning pin 85 makes it easier to recognize the position of the positioning pin 85 by image recognition. As a result, in the HDD 10, by aligning the positioning pins 85 with the positioning holes 131, it is possible to easily align the reinforcing protrusions 103A, 103B, 103C, and 103D with the through holes 72A, 72B, 72C, and 72D, and ultimately to position the I / F connector 53 at a desired position with respect to the PCB 51. Therefore, in the HDD 10, it is possible to prevent the positions of the reinforcing protrusions 103A, 103B, 103C, and 103D from shifting from the positions of the through holes 72A, 72B, 72C, and 72D.

[0144] It is easier to provide the different color portion 341 on the lower surface 93a than on the end of the positioning pin 85 in the -Z direction. Therefore, the HDD 10 of this embodiment can provide a clearer different color portion 341 on the lower surface 93a than when a different color portion is provided on the end of the positioning pin 85 in the -Z direction. Therefore, image recognition based on the different color portion 341 is easier.

[0145] In image recognition, the origin of the position of the I / F connector 53 may be set based on the position of the mounting terminal 83. In this case, the distance between the mounting terminal 83 and the positioning pin 85 becomes relatively long. In contrast, in this embodiment, the position of the positioning pin 85 can be recognized by image recognition using a different color portion 341 provided near the positioning pin 85. This allows the HDD 10 of this embodiment to more accurately align the positioning pin 85.

[0146] (Fourth embodiment) The fourth embodiment will be described below with reference to Fig. 11. Fig. 11 is an exemplary perspective view showing a part of a substrate 401 and an electronic component 402 of an electronic device 400 according to the fourth embodiment. The electronic device 400 in the fourth embodiment is an HDD, an SSD, a personal computer, a supercomputer, a server, a television receiver, a game console, or other electronic device.

[0147] The electronic device 400 includes a substrate 401 and an electronic component 402. The substrate 401 is, for example, a PCB. The substrate 401 has a surface 401a facing a first direction D1. The surface 401a is an example of a first surface.

[0148] The substrate 401 further has a plurality of electrodes 411 provided on the surface 401a. Four holes 412 are also provided in the substrate 401. The four holes 412 penetrate the substrate 401 and open to the surface 401a at positions spaced apart from one another.

[0149] The four holes 412 may be individually referred to as holes 412A, 412B, 412C, and 412D. Hole 412A is an example of a first hole. Holes 412B, 412C, and 412D are examples of second holes.

[0150] Electronic component 402 is, for example, a connector conforming to an interface standard such as USB Type-C. Note that electronic component 402 may be a connector conforming to another interface standard such as HDMI (registered trademark), or may be another electronic component. Electronic component 402 is mounted on substrate 401. Electronic component 402 has a base 421, a plurality of terminals 422, and four protrusions 423.

[0151] The base 421 is located on the surface 401a or is spaced apart from the surface 401a in the first direction D1. The base 421 is provided with a socket 421a into which a plug conforming to USB Type-C can be inserted.

[0152] The plurality of terminals 422 extend from the base 421. Each of the plurality of terminals 422 is joined to a corresponding one of the plurality of electrodes 411 by, for example, soldering. In this way, the electronic component 402 is mounted on the substrate 401.

[0153] The four protrusions 423 protrude from the base 421 in a second direction D2 opposite to the first direction. The four protrusions 423 may be individually referred to as protrusions 423A, 423B, 423C, and 423D. The protrusion 423A is an example of a first protrusion. The protrusions 423B, 423C, and 423D are examples of second protrusions.

[0154] Each of the four protrusions 423 is inserted into a corresponding one of the four holes 412. Protrusion 423A is at least partially received in hole 412A. Protrusion 423B is at least partially received in hole 412B. Protrusion 423C is at least partially received in hole 412C. Protrusion 423D is at least partially received in hole 412D.

[0155] Each of the four protrusions 423 has an end surface 431 and two tapered surfaces 432. The end surface 431 of the protrusion 423A is an example of a first end and end surface. The tapered surface 432 of the protrusion 423A is an example of a first inclined surface and tapered surface. The end surfaces 431 of the protrusions 423B, 423C, and 423D are an example of a second end. The tapered surfaces 432 of the protrusions 423B, 423C, and 423D are an example of a second inclined surface.

[0156] The end surface 431 is provided at the end of the protrusion 423 in the second direction D2. The two tapered surfaces 432 are spaced apart from each other in the third direction D3. The third direction D3 is a direction perpendicular to the first direction D1 and the second direction D2.

[0157] Each of the two tapered surfaces 432 extends obliquely from the end surface 431 with respect to the first direction D1 and the second direction D2 so that the width of the protrusion 423 in the third direction D3 tapers toward the end surface 431. In other words, the two tapered surfaces 432 extend toward each other toward the end surface 431. The end surface 431 extends in the third direction D3 along the surface 401a between the two tapered surfaces 432.

[0158] The shapes of the protrusions 423B, 423C, and 423D are substantially identical or substantially mirror-symmetric to one another. On the other hand, the shape of the protrusion 423A differs from the shapes of the protrusions 423B, 423C, and 423D as follows.

[0159] In the Z direction, the length of the protrusion 423A is longer than the lengths of the protrusions 423B, 423C, and 423D. Therefore, in a direction perpendicular to the surface 401a, the end face 431 of the protrusion 423A is farther away from the surface 401a in the second direction D2 than the end faces 431 of the protrusions 423B, 423C, and 423D. The Z direction is an example of a direction perpendicular to the first surface.

[0160] Furthermore, in a direction perpendicular to the surface 401a, the end face 431 of the protrusion 423A is farther away in the second direction D2 from the end 421b of the base 421 in the second direction D2 than the end faces 431 of the protrusions 423B, 423C, and 423D. The length of each of the tapered surfaces 432 of the protrusion 423A in the third direction D3 is longer than the length of each of the tapered surfaces 432 of the protrusions 423B, 423C, and 423D in the third direction D3.

[0161] The difference between the length of the hole 412 in the third direction D3 and the length of the protrusion 423 in the third direction D3 is smaller than the difference between the length of the hole 412 in the fourth direction D4 and the length of the protrusion 423 in the fourth direction D4. The fourth direction D4 is a direction perpendicular to the first direction D1 and the third direction D3.

[0162] In electronic device 400 according to the fourth embodiment described above, when electronic component 402 is mounted on substrate 401, protrusion 423A is inserted into hole 412A before protrusions 423B, 423C, and 423D are inserted into holes 412B, 412C, and 412D. In the third direction D3, the center of protrusion 423A may be misaligned with the center of hole 412A. In this case, tapered surface 432 of protrusion 423A contacts the edge of hole 412A, thereby guiding protrusion 423A into hole 412A and correcting the position of electronic component 402 relative to substrate 401 in third direction D3. Furthermore, even if the center of protrusion 423A is displaced from the center of hole 412A in third direction D3 by a distance greater than the length of tapered surfaces 432 of protrusions 423B, 423C, and 423D, tapered surfaces 432 of protrusion 423A can abut against the edge of hole 412A. Therefore, in electronic device 400 of this embodiment, protrusion 423A corrects the position of electronic component 402 with respect to substrate 401, so that protrusions 423A, 423B, 423C, and 423D can be more reliably inserted into holes 412A, 412B, 412C, and 412D, and electronic component 402 can be more reliably mounted on substrate 401.

[0163] In the above embodiments, the reinforcing protrusions 103, 203 and the protrusion 423 are plate-shaped. However, the first protrusion and the second protrusion may be substantially cylindrical or conical. Furthermore, the widths of the first protrusion and the second protrusion in multiple directions may taper toward the ends of the first protrusion and the second protrusion.

[0164] In the above embodiments, the protrusions that reinforce the connection portions of the electronic components, such as the reinforcing protrusions 103, 203 and the protrusion 423, are examples of the first protrusion and the second protrusion. However, the first protrusion and the second protrusion may be terminals of the electronic component.

[0165] According to at least one embodiment described above, an electronic device includes a substrate and an electronic component. The substrate has a first surface facing a first direction and is provided with a first hole opening into the first surface and a second hole opening into the first surface at a position spaced apart from the first hole. The electronic component has a base located on the first surface or spaced apart from the first surface in the first direction, a first protrusion protruding from the base and at least partially housed in the first hole, and a second protrusion protruding from the base and at least partially housed in the second hole, and is mounted on the substrate. In a direction perpendicular to the first surface, a first end provided at an end of the first protrusion in a second direction opposite to the first direction is farther from the first surface in the second direction than a second end provided at an end of the second protrusion in the second direction. The first protrusion has a first slope extending obliquely from the first end with respect to the first direction. The second protrusion has a second slope extending obliquely from the second end with respect to the first direction. The length of the first slope in a third direction perpendicular to the first direction is longer than the length of the second slope in the third direction. This enables the electronic component to be mounted on the substrate more reliably.

[0166] In the above description, suppression is defined as, for example, preventing an event, action, or effect from occurring or reducing the magnitude of an event, action, or effect.

[0167] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0168] 10...Hard disk drive (HDD), 51...Printed circuit board (PCB), 51a...Mounting surface, 53...Interface (I / F) connector, 65...Electrode, 72, 72A, 72B, 72C, 72D...Through hole, 83...Mounting terminal, 84...Mounting plate, 85...Locating pin, 93a...Underside, 103, 103A, 103B, 103C, 103D, 203, 203A, 203B, 203C, 203D...Reinforcing protrusion, 111...End face, 113...Taper Surface, 120...base, 131...positioning hole, 141, 341...different color portion, 400...electronic device, 401...substrate, 401a...surface, 402...electronic component, 411...electrode, 412, 412A, 412B, 412C, 412D...hole, 421...base, 421b...end, 423, 423A, 423B, 423C, 423D...protrusion, 431...end surface, 432...tapered surface, La, Lb...length, D1...first direction, D2...second direction, D3...third direction, D4...fourth direction.

Claims

1. a substrate having a first surface facing a first direction, and provided with a first hole opening into the first surface and a second hole opening into the first surface at a position spaced apart from the first hole; an electronic component mounted on the substrate, the electronic component having: a base located on the first surface or spaced apart from the first surface in the first direction; a first protrusion protruding from the base and at least partially housed in the first hole; and a second protrusion protruding from the base and at least partially housed in the second hole; Equipped with In a direction perpendicular to the first surface, a first end provided at an end of the first protrusion in a second direction opposite to the first direction is farther away from the first surface in the second direction than a second end provided at an end of the second protrusion in the second direction, the first protrusion has a first inclined surface extending obliquely from the first end with respect to the first direction; the second protrusion has a second inclined surface extending obliquely from the second end with respect to the first direction; a length of the first inclined surface in a third direction perpendicular to the first direction is longer than a length of the second inclined surface in the third direction; electronic equipment.

2. the electronic component has two mounting portions each having the first protrusion and the second protrusion and spaced apart from each other in a fourth direction perpendicular to the first direction and the third direction, In each of the two mounting portions, the first protrusion and the second protrusion are spaced apart from each other in the fourth direction, the first protrusion is located further outward from the electronic component in the fourth direction than the second protrusion; The electronic device of claim 1.

3. the electronic component has two mounting portions each having the first protrusion and the second protrusion and spaced apart from each other in the first direction and a fourth direction intersecting the third direction; In each of the two mounting portions, the first protrusion and the second protrusion are positioned to be spaced apart from each other in the fourth direction, the first protrusion is located more inward of the electronic component in the fourth direction than the second protrusion; The electronic device of claim 1.

4. a difference between a length of the first hole in the third direction and a length of the first protrusion in the third direction is smaller than a difference between a length of the first hole in the fourth direction and a length of the first protrusion in the fourth direction; 4. The electronic device according to claim 2 or 3.

5. the first inclined surface has two tapered surfaces that are spaced apart from each other in the third direction and extend toward each other toward the first end, the first end portion has an end surface extending along the first surface between the two tapered surfaces; 5. An electronic device according to claim 1.

6. the substrate has an electrode provided on the first surface, and a third hole opening to the first surface; the base has a second surface facing the first surface; the electronic component has a terminal extending from the base and joined to the electrode, and a third protrusion protruding from the second surface and at least partially housed in the third hole; the electronic component further has one of: a first different color portion provided at an end of the third protrusion in the second direction and having a color different from that of the second surface; and a second different color portion provided on the second surface, having a color different from that of other portions of the second surface, being closer to the third protrusion than the terminal, and having a distance between the first different color portion and the third protrusion shorter than a distance between the terminal and the third protrusion.

6. An electronic device according to claim 1.

7. The electronic component is an interface connector conforming to serial attached SCSI, serial ATA, or NVM express; 7. An electronic device according to claim 1.

8. A base and a first protrusion protruding from the base in a fifth direction; a second protrusion protruding from the base in the fifth direction at a position spaced from the first protrusion; Equipped with a first end provided at an end of the first protrusion in the fifth direction is farther away from an end of the base in the fifth direction than a second end provided at an end of the second protrusion in the fifth direction; the first protrusion has a first inclined surface extending obliquely from the first end with respect to the fifth direction; the second protrusion has a second inclined surface extending obliquely from the second end with respect to the fifth direction, a length of the first inclined surface in a sixth direction perpendicular to the fifth direction is longer than a length of the second inclined surface in the sixth direction; Electronic components.

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