JP5033144B2 - Unit electronics - Google Patents

Description

  The present invention relates to a unit-type electronic device, and more particularly to an improvement of a unit-type electronic device that elastically supports a detachable unit such as a disk drive unit in a housing.

  2. Description of the Related Art Recording apparatuses that record video captured by a surveillance camera on a removable HDD (Hard Disk Drive) unit are known. In a conventional recording apparatus, an HDD unit is connected to a circuit on the main body side using an FPC (Flexible Printed Circuits) cable. For this reason, when the HDD unit is attached or detached, it is necessary to attach or detach the cable, and there is a problem that the maintainability is not good.

  Therefore, if the HDD unit is inserted into the opening of the main body side housing so that the HDD unit is connected to the connector in the main body, and the HDD unit can be pulled out and detached from the connector, it can be maintained. It is thought that it can be improved. However, in general, since the HDD unit is elastically supported by the floating mechanism with respect to the main body side housing, if the HDD unit can be connected to the connector in the main body only by inserting the HDD unit, There was a problem that a burden was placed on the connector.

  That is, the HDD unit may malfunction or be damaged when subjected to an external impact. Moreover, since the HDD unit has a built-in drive mechanism that rotates the built-in disk, it vibrates during operation. For this reason, the HDD unit is normally elastically supported with respect to the main body side housing.

  On the other hand, in order to connect the HDD unit to the connector in the main body by inserting it from the opening of the main body side housing, it is necessary to fix the connector to the main body side housing and determine its position. . However, since the mounted HDD unit is elastically held with respect to the main body side housing, if the HDD unit is connected to a connector fixed to the main body side housing, an impact from outside, Due to vibration, the connector is burdened, and the connector may be damaged.

  Patent Document 1 discloses a technique for reducing the contact resistance of a power supply pin in a connector in order to suppress power loss. The connector described in Patent Document 1 includes a spring connector that urges the power pin in the longitudinal direction thereof, and cannot prevent contact failure between the connectors due to the influence of vibration.

JP 2002-83640 A

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a unit-type electronic device in which a detachable unit such as an HDD unit can be easily detached. In particular, it is an object of the present invention to provide an electronic device that can easily attach and detach the detachable unit while suppressing damage to the connector due to an externally applied impact or vibration of the detachable unit itself.

  A unit-type electronic device according to a first aspect of the present invention includes a housing having an opening for inserting and removing a detachable unit having a first connector, and the detachable unit inserted from the first connector side into the opening. Unit support means for elastically supporting, a second connector detachably coupled to the first connector and connected to the circuit board in the housing, and connector support means for supporting the second connector, the connector The support means is inserted into a connector board to which the second connector is fixed, a board support member supported by the housing, one of the connector board and the board support member, and a through hole formed in the other. The fastening shaft having a tapered surface whose maximum diameter is larger than that of the through hole, and the connector board and the board support member are biased to the opposite sides, and the outer edge of the through hole is raised upward. Configured to comprise a biasing means is brought into contact with the tapered surface.

  With such a configuration, before the attachment / detachment unit is attached, the taper surface of the fastening shaft abuts on the outer edge of the through hole, and the movement of the second connector in the direction intersecting the insertion / extraction direction of the attachment / detachment unit is restricted. Is placed at a predetermined position in the housing. For this reason, if the detachable unit is inserted from the first connector side, the first and second connectors can be coupled. Moreover, after the attachment / detachment unit is attached, the attachment / detachment unit is elastically supported by the unit support means, and the taper surface of the fastening shaft is separated from the outer edge of the through hole, so that the second connector intersects the insertion / removal direction of the attachment / detachment unit. It is possible to move in the direction of For this reason, the detachable unit is elastically supported, and the first and second connectors are not burdened and damaged.

  The unit type electronic device according to the second aspect of the present invention has the taper surface of the outer edge of the through hole after the first connector and the second connector are joined when the urging means inserts the detachable unit in addition to the above-described configuration. Configured to urge away from.

  In addition to the above configuration, the unit electronic device according to the third aspect of the present invention is a unit fixing means for maintaining the tapered surface away from the outer edge of the through hole by fixing the position of the detachable unit in the insertion / extraction direction. It is configured with.

  In a unit type electronic device according to a fourth aspect of the present invention, in addition to the above configuration, the fastening shaft has a head portion on which the tapered surface is formed, and is screwed to the one of the connector board and the board support member. It is configured to be a screw. According to such a configuration, the screw that is screwed into one of the connector substrate and the substrate support member is used to restrict the movement of the second connector in the direction intersecting the insertion / extraction direction of the detachable unit. It is possible to realize an electronic device that can be easily manufactured and can easily attach and detach the detachable unit while suppressing breakage of the connector.

  In addition to the above configuration, the unit electronic device according to a fifth aspect of the present invention has the through hole formed in the board support member, and the connector board is embedded with a press-fit nut to be screwed with the fastening shaft. Configured as follows. According to such a configuration, the through hole through which the fastening shaft is inserted is formed in the board support member supported by the housing, and the press-fit nut for screwing the fastening shaft into the connector board is embedded, so that the workability at the time of manufacture is increased. Can be improved.

  In addition to the above configuration, the unit type electronic apparatus according to the sixth aspect of the present invention is configured such that the urging means is a resin sponge disposed between the connector substrate and the substrate support member. According to such a configuration, since the resin sponge disposed between the connector board and the board support member is an elastic body whose urging force changes according to the cross-sectional area, the connector board and the board support member are placed on opposite sides. The urging force at the time of urging can be easily adjusted.

  A unit type electronic apparatus according to a seventh aspect of the present invention is configured such that, in addition to the above configuration, the detachable unit is a disk drive unit.

  A unit type electronic device according to the present invention includes a fastening shaft fixed to one of a connector substrate to which a second connector is fixed and a substrate support member supported by a housing, and inserted into a through hole formed in the other. The fastening shaft has a tapered surface whose maximum diameter is larger than that of the through hole. Further, the connector board and the board support member are urged to the opposite sides, and urging means is provided to abut the outer edge of the through hole against the tapered surface of the fastening shaft.

  For this reason, before the attachment / detachment unit is attached, the tapered surface of the fastening shaft comes into contact with the outer edge of the through hole, and the second connector is placed at a predetermined position in the housing. Therefore, if the detachable unit is inserted from the first connector side, the first and second connectors are coupled, so that the detachable unit can be easily mounted.

  Moreover, after the attachment / detachment unit is attached, the attachment / detachment unit is elastically supported by the unit support means, and the taper surface of the fastening shaft moves away from the outer edge of the through hole, so that the attachment / detachment unit can move in the direction intersecting the insertion / extraction direction. Become. For this reason, the detachable unit is elastically supported, and it is possible to prevent the first and second connectors from being damaged by the influence of an externally applied impact or the vibration of the detachable unit.

1 is a perspective view showing an example of a schematic configuration of a unit type electronic device according to Embodiment 1 of the present invention, and shows a recording apparatus 100 as an example of a unit type electronic device. It is the figure which showed an example of the connector board | substrate 31 of FIG. It is the figure which showed an example of the connector board | substrate 31 of FIG. FIG. 2 is a diagram illustrating a configuration example of an HDD module 40 in the recording device 100 of FIG. 1. FIG. 2 is a diagram illustrating a configuration example of an HDD module 40 in the recording device 100 of FIG. 1. FIG. 2 is a plan view illustrating a configuration example of a main unit 20 in the recording device 100 of FIG. 1. It is sectional drawing which showed the structural example of the main body unit 20 in the video recording apparatus 100 of FIG. 1, and the cut surface by the AA line of FIG. 6 is shown. FIG. 7 is a cross-sectional view showing an example when the HDD module 40 is mounted in the main unit 20, and shows a cut surface along the line AA in FIG. 6. It is sectional drawing which showed one structural example of the unit type electronic device by other embodiment of this invention, and the cut surface of the main body unit 20 by the AA line is shown. It is sectional drawing which showed one structural example of the unit type electronic device by other embodiment of this invention, and the cut surface of the main body unit 20 by the AA line is shown.

<Recording device>
FIGS. 1A and 1B are perspective views showing an example of a schematic configuration of a unit electronic device according to an embodiment of the present invention. As an example of the unit electronic device, an HDD unit detachable recording apparatus 100 is shown. It is shown. 1A shows the front panel unit 10, and FIG. 1B shows the main unit 20 in which the HDD module 40 is mounted.

  The recording device 100 is a digital video recorder that can record images taken by a plurality of monitoring cameras on an HDD unit in the HDD module 40, and includes a front panel unit 10 and a main unit 20. The recording apparatus 100 is completed by mounting the front panel unit 10 on the main unit 20 from above after the HDD module 40 is mounted.

  The front panel unit 10 is a cover case having a front panel 11 on which a power switch and a plurality of operation buttons are arranged.

  The main unit 20 includes an information processing unit that processes a signal input from an external device and writes the signal to the HDD unit, or processes and outputs a signal read from the HDD unit, and includes a housing 21 having an opening 24; A substrate support member 22 supported by the housing 21 is provided.

  The housing 21 is a main frame that supports a circuit board and the like, and the HDD module 40 is accommodated in the main unit 20 by inserting the HDD module 40 through the opening 24 provided on the front side. The HDD module 40 is inserted and removed through the opening 24, and the housing 21 is provided with two such openings 24. That is, the main unit 20 can be equipped with two HDD modules 40 at the same time.

  The board support member 22 is a subframe in which a connector 30 to be coupled to the connector on the HDD module 40 side is disposed, and a connector board 31 to which the connector 30 is fixed is attached. The connector 30 is arranged toward the front side, and is connected to a circuit board (not shown) in the housing 21 via a flexible wiring.

  The HDD module 40 is a replaceable storage device that includes an HDD unit and a floating mechanism that elastically supports the HDD unit. The HDD module 40 is provided with a connector to be coupled to the connector 30 of the main unit 20 and a fixing screw hole 41. ing.

  The HDD module 40 is accommodated in the main unit 20 by being inserted into the opening 24 from the connector side. When the HDD module 40 is inserted into the housing 21, movement in the left-right direction is restricted by the guide plate 23 provided on the housing 21.

  After the HDD module 40 is accommodated in the main unit 20, the HDD module 40 can be prevented from coming out by inserting a screw into the fixing screw hole 41 and screwing the HDD module 40 to the housing 21. . That is, the position of the HDD module 40 in the insertion / extraction direction is fixed by screwing the HDD module 40 to the housing 21.

<Connector board>
2 and 3 are views showing an example of the connector board 31 of FIG. FIG. 2 is a perspective view of the connector board 31. FIG. 3A shows the connector board 31 viewed from the side, and FIG. 3B shows the board board 31 viewed from the insertion / removal direction. Has been. A connector 30 is attached to the connector substrate 31 on the surface facing the HDD module 40.

  The connector 30 is a connection part for electrically connecting the circuit in the main unit 20 and the circuit in the HDD module 40 and is detachably coupled to the connector on the HDD module 40 side. As the connector 30, for example, a general-purpose plug connector of 7-pin specification conforming to the SATA (Serial ATA) standard is used.

  The connector substrate 31 is a frame having an L-shaped cross section to which the connector 30 is fixed. The connector 30 is provided with screw holes at both left and right ends, and is fixed to the connector substrate 31 with screws 32.

  The wiring 33 extending from the connector 30 passes through the connector substrate 31 and is arranged on the back side. A resin sponge 34 is provided on the back side of the connector board 31 as an urging means for urging the connector board 31 and the board support member 22 to opposite sides when the connector board 31 is attached to the board support member 22. Has been placed.

  The resin sponge 34 is an elastic member made of resin, and for example, one formed by firing resin rubber such as urethane rubber is used. Here, when inserting the HDD module 40, the resin sponge 34 is not deformed by a force smaller than the pressing force in the insertion direction for connecting the connector on the HDD module 40 side and the connector 30, and is larger than the pressing force. It shall be elastically deformed by applying a force in the insertion direction.

  In this example, the resin sponge 34 is composed of two block-like sponge lumps, and is disposed at both the left and right ends of the connector substrate 31.

<HDD unit>
4 and 5 are diagrams showing a configuration example of the HDD module 40 in the recording apparatus 100 of FIG. 1, and the HDD module 40 including the HDD unit 42, the cover frame 43, and the connector 44 is shown. FIG. 4 is a perspective view of the HDD module 40 as viewed from the connector side, and FIG. 5 shows the HDD module 40 as viewed from the insertion / removal direction.

  The HDD unit 42 is a disk drive unit that reads information from a recording medium while rotating a disk-shaped recording medium (disk), and a connector 44 that is coupled to the connector 30 on the main unit 20 side. It is arranged.

  By fitting the connector 44 with the connector 30, the circuit in the main unit 20 and the circuit in the HDD unit 42 are electrically connected.

  The cover frame 43 is a unit support member that elastically supports the HDD unit 42 and is made of a metal plate. The HDD unit 42 is supported on the cover frame 43 by screws 45 fixed to the cover frame via vibration-proof rubber 46. In this example, the HDD unit 42 is supported by the cover frame 43 at the fixing positions of the screws 45 on both the left and right sides.

<Main unit>
FIG. 6 is a plan view showing a configuration example of the main unit 20 in the recording apparatus 100 of FIG. The HDD module 40 is inserted into the main unit 20 with the front-rear direction of the recording apparatus 100 as the insertion / extraction direction. When the HDD module 40 is inserted into the housing 21, the guide plate 23 guides movement in the insertion / removal direction and restricts movement in the left / right direction.

  Further, since the HDD module 40 is also restricted from moving in the vertical direction by the casing 21, the connector 44 of the HDD unit 42 is connected to the main unit in a state where the movement in the horizontal direction and the vertical direction intersecting the insertion / removal direction is restricted. 20 connectors 30 are coupled.

<Connector board fastening structure>
FIG. 7 is a cross-sectional view showing a configuration example of the main unit 20 in the recording apparatus 100 of FIG. 1, and shows a cut surface along the line AA of FIG. The connector 30 of the main unit 20 is fixed to the connector substrate 31 with screws 32 and is attached to the substrate support member 22 via the connector substrate 31.

  The connector 30 is arranged with a protruding terminal portion facing the opening 24 of the housing 21, and the two connectors are coupled by inserting the terminal portion into the connector 44 on the HDD module 40 side.

  The connector substrate 31 is disposed with the surface opposite to the surface on which the connector 30 is disposed facing the substrate support member 22, and a resin sponge 34 is disposed so as to be sandwiched between the connector substrate 31 and the substrate support member 22. It is installed.

  The connector board 31 is fastened to the board support member 22 by screws 36. The board support member 22 is provided with a screw hole 22a through which the screw 36 is inserted, and the connector board 31 is embedded with a press-fit nut 35 to be screwed with the screw 36. The screw 36 is a fastening shaft for fastening the connector board 31 and the board support member 22, and has a head portion 36 a at one end thereof. The screw 36 is inserted into the screw hole 22 a of the board support member 22 and fixed to the connector board 31 by being screwed with the press-fit nut 35. The head portion 36a has a maximum diameter larger than that of the screw hole 22a and has a tapered surface 36b on the fastening shaft side.

  For example, a countersunk screw having a tapered surface 36b in which the diameter of the fastening shaft 36 is substantially constant and the diameter of the head portion 36a gradually increases in the axial direction can be used as the screw 36.

  The screw hole 22 a is a through hole that penetrates the substrate support member 22. The press-fit nut 35 is pressed into the connector board 31 by being pressed from the connector 30 side, and is fixed to the connector board 31.

  The resin sponge 34 urges the connector substrate 31 and the substrate support member 22 to be opposite to each other, and causes the outer edge of the screw hole 22 a to contact the tapered surface 36 b of the screw 36. When the outer edge of the screw hole 22a is in contact with the tapered surface 36b, the presence of the tapered surface 36b ensures that the fastening shaft of the screw 36 is always positioned at the approximate center of the screw hole 22a regardless of the size of the screw hole 22a. Is done.

  In addition, when the outer edge of the screw hole 22a and the tapered surface 36b are in contact with each other, the board support member 22 is moved in the vertical and horizontal directions of the connector board 31, that is, in the insertion / extraction direction of the HDD module 40. The movement of the connector 30 in the direction is restricted, and the connector 30 is positioned at the correct position. On the other hand, the connector substrate 31 can be moved in the insertion direction, that is, moved toward the substrate support member 22 by applying a force exceeding the urging force by the resin sponge 34. In other words, when the HDD module 40 is mounted, the connectors 44 and 30 are coupled and then the HDD module 40 is further pushed to move the connector substrate 31 to the substrate support member 22 side.

  FIG. 8 is a cross-sectional view showing an example when the HDD module 40 is mounted in the main unit 20, and shows a cut surface taken along line AA in FIG. 6. The HDD module 40 is restricted from moving in the insertion direction when the connector 44 is engaged with the connector 30 and further contacts the housing 21 of the main unit 20.

  When the HDD module 40 is mounted in the main unit 20, the connector substrate 31 moves to the substrate support member 22 side compared to before the HDD module 40 is mounted, and is held in a state where the resin sponge 34 is compressed.

  The HDD module 40 is fixed in a state where the connector 30 and the connector substrate 31 are further pushed into the substrate support member 22 side after the connector 44 and the connector 30 are fitted. That is, when the HDD module 40 is inserted into the main unit 20, the HDD module 40 is fixed so as not to come out in a state where there is a play B in the direction intersecting the insertion / extraction direction between the connector substrate 31 and the substrate support member 22.

  In such a mounted state of the HDD module 40, play in a direction crossing the insertion / extraction direction of the connector 30 occurs between the screw hole 22a of the board support member 22 and the screw 36 or the press-fit nut 35. The substrate support member 22 can be moved in the vertical direction and the horizontal direction.

  That is, the connector 30 is positioned at a predetermined position by the taper surface 36a of the screw 36 fixed to the connector substrate 31 abutting on the outer edge of the screw hole 22a before the HDD module 40 is mounted, and the connector 30 is positioned in the vertical and horizontal directions. While the movement is restricted, after the HDD module 40 is mounted, it can be freely moved by play between the screw hole 22a and the screw 36.

  According to the present embodiment, before the HDD module 40 is mounted, the taper surface 36b of the screw 36 contacts the outer edge of the screw hole 22a, and the movement of the connector 30 in the direction intersecting the insertion / extraction direction of the HDD module 40 is restricted. Then, the connector 30 is placed at a predetermined position in the housing 21. Since the connector 30 is positioned in this way, the connectors 30 and 44 can be easily coupled simply by inserting the HDD module 40 from the connector 44 side. Moreover, after the HDD module 40 is mounted, the HDD unit 42 is elastically supported by the cover frame 43, and the tapered surface 36b of the screw 36 is separated from the outer edge of the screw hole 22a. It becomes possible to move in the direction intersecting the insertion / extraction direction. For this reason, the HDD unit 42 is elastically supported, and the connectors 30 and 44 are not burdened and damaged.

  Further, since the screw 36 screwed to the board support member 22 is used to restrict the movement of the connector 30 in the direction crossing the insertion / removal direction of the HDD module 40, it can be manufactured inexpensively and easily. It is possible to realize the recording apparatus 100 in which the HDD module 40 can be easily attached and detached while suppressing breakage of the 30,44. Further, since a screw hole 22a for inserting the screw 36 is provided in the board support member 22 supported by the casing 21, and a press-fit nut 35 for screwing the fastening shaft of the screw 36 is embedded in the connector board 31, work at the time of manufacture is performed. Can be improved. Further, since the resin sponge 34 disposed between the connector board 31 and the board support member 22 is an elastic body whose urging force changes according to the cross-sectional area, the connector board 31 and the board support member 22 are attached to the opposite sides. The urging force when energizing can be easily adjusted.

  In the present embodiment, an example in which the screw 36 is fixed to the connector substrate 31 via the press-fit nut 35 and the screw hole 22a through which the screw 36 is inserted is formed in the substrate support member 22 has been described. The invention is not limited to this. For example, the screw 36 may be directly fixed to the connector board 31 without using the press-fit nut 35. Further, instead of embedding the press-fit nut 35 in the connector board 31, the first screw is fixed to the connector board 31, and the second screw (female screw) provided with a screw hole at the center of the fastening shaft is used as the board. It is conceivable that the support member 22 is inserted through the screw hole 22a to be coupled to the fastening shaft of the first screw.

  FIG. 9 is a cross-sectional view showing a configuration example of a unit electronic device according to another embodiment of the present invention, and shows a cut surface of the main unit 20 taken along the line AA. The connector 30 is supported by a connector substrate 31, a substrate support member 22, screws 51 and 52, and a resin sponge 34. The board support member 22 is provided with a screw hole 22a through which the screw 52 is inserted, and the connector board 31 is inserted with a screw 51 to be screwed with the screw 52.

  The connector board 31 is provided with a through hole, and a screw 51 is inserted into the through hole from the connector 30 side.

  The screw 52 is a fastening shaft for fastening the connector board 31 and the board support member 22 and has a structure having a screw hole at the center of the fastening shaft. The screw 52 is inserted into the screw hole 22a of the board support member 22, and is fixed to the connector board 31 by inserting and screwing the screw 51 into the screw hole of the fastening shaft.

  Even with such a configuration, it is possible to easily attach and detach the HDD module 40 while suppressing the occurrence of contact failure between the connectors due to the influence of vibration or the like, and it is possible to improve the maintainability.

  Alternatively, a press-fit nut may be embedded in the board support member 22 and a screw hole may be formed in the connector board 31 through which a screw to be coupled with the press-fit nut is inserted.

  FIG. 10 is a cross-sectional view showing a configuration example of a unit electronic device according to another embodiment of the present invention, and shows a cut surface of the main unit 20. The connector 30 is supported by a connector substrate 31, a substrate support member 22, screws 62, a press-fit nut 63, and a resin sponge 34.

  The connector board 31 is provided with a screw hole 61 through which the screw 62 is inserted, and the board support member 22 is embedded with a press-fit nut 63 to be screwed with the screw 62. The screw 62 is inserted into the screw hole 61 of the connector board 31 and is fixed to the board support member 22 by screwing the fastening shaft with the press-fit nut 63.

  Even with such a configuration, it is possible to easily attach and detach the HDD module 40 while suppressing the occurrence of contact failure between the connectors due to the influence of vibration or the like, and it is possible to improve the maintainability.

  In this embodiment, the example in which the resin sponge 34 is used as the urging means for urging the connector substrate 31 and the substrate supporting member 22 to the opposite sides has been described, but the present invention is not limited to this. Absent. For example, various members having a biasing force such as a coiled spring can be used as the biasing means.

DESCRIPTION OF SYMBOLS 10 Front panel unit 11 Front panel 20 Main body unit 21 Case 22 Board | substrate support member 22a Screw hole 23 Guide board 24 Opening part 30 Connector 31 Connector board 32 Screw 33 Wiring 34 Resin sponge 35 Press-fit nut 36 Screw 36a Tapered surface 40 HDD module 41 Fixing screw hole 42 HDD unit 43 Cover frame 44 Connector 45 Screw 46 Anti-vibration rubber 51, 52 Screw 61 Screw hole 62 Screw 63 Press-fit nut 100 Recording device

Claims (7)

A housing having an opening for inserting and removing the detachable unit having the first connector;
Unit support means for elastically supporting the detachable unit inserted from the first connector side with respect to the opening;
A second connector removably coupled to the first connector and connected to the circuit board in the housing;
Connector support means for supporting the second connector;
The connector support means includes a connector substrate to which the second connector is fixed,
A substrate support member supported by the housing;
A fastening shaft fixed to one of the connector board and the board support member, inserted into a through hole formed in the other, and having a tapered surface having a maximum diameter larger than the through hole,
A unit-type electronic apparatus comprising biasing means for biasing the connector board and the board support member to opposite sides and abutting the outer edge of the through hole against the tapered surface.   2. The biasing means according to claim 1, wherein when the detachable unit is inserted, the biasing unit biases the tapered surface away from the outer edge of the through hole after the first connector and the second connector are coupled. Unit electronics.   3. The unit according to claim 1, further comprising unit fixing means for maintaining the tapered surface away from the outer edge of the through hole by fixing the position of the detachable unit in the insertion / extraction direction. Electronic equipment.   2. The unit type according to claim 1, wherein the fastening shaft is a screw having a head portion on which the tapered surface is formed and screwed into the connector board and the one of the board support members. Electronics.   The unit type electronic device according to claim 1, wherein the through hole is formed in the board support member, and a press-fit nut to be screwed with the fastening shaft is embedded in the connector board.   2. The unit type electronic device according to claim 1, wherein the urging means is a resin sponge disposed between the connector substrate and the substrate support member.   2. The unit type electronic apparatus according to claim 1, wherein the detachable unit is a disk drive unit.

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