JP6055067B1 - Power supply device and server device - Google Patents

Abstract

A power supply device capable of easily and surely retaining a plug connector with respect to a receptacle connector and a server device including the power supply device are provided. A power supply device (10) includes a cord insertion hole (34) for inserting a power cord (30) and a shoulder (20c) of the plug connector (20) connected to the receptacle connector (22), thereby locking the plug connector (20) from the receptacle connector (22). A retaining portion 32 for preventing disconnection, one end side being inserted into the housing 26 in a state of being able to advance and retreat from the back surface 10a of the housing 26, and a cord insertion hole 34 and a retaining portion 32 are provided on the other end side. A plug holding member 24 that includes base portions 36 and 37 and that can be moved forward and backward from the rear surface 10a of the housing 26; and a push-push mechanism 42 that can set the plug holding member 24 to a push-in position and a protruding position. Is provided. [Selection] Figure 2

Description

  The present invention relates to a power supply device including a receptacle connector on one surface of a housing for connecting a plug connector connected to a power cord, and a server device including the power supply device.

  At present, server apparatuses are widely installed in many companies and academic institutions for managing information and dealing with business applications within a company, as well as managing databases and processing the Internet infrastructure. Since general server devices support the multi-function processing as described above, blades such as CPUs and memories can be added to a single rack, and the power supply of the server device is also mounted as a similar unit structure. (For example, refer to Patent Document 1).

JP 2008-9648 A

  In such a power supply unit mounted on the server device, a configuration is generally adopted in which power is supplied by connecting a plug connector provided at the tip of a power cord from an external power source to a receptacle connector provided on the back surface thereof. It is. Therefore, if the plug connector is mistakenly removed from the receptacle connector during the operation of the server device, the power supply is momentarily cut off, which greatly affects not only the server device but also other devices and operations.

  Therefore, the power supply unit of the server device can reliably prevent the plug connector from being mistakenly removed from the receptacle connector, and the operator can easily and reliably carry out such setting of the retainer. It has been demanded. Such a power cord disconnection prevention is naturally required not only in the server device but also in a power supply device mounted in another device.

  The present invention has been made in consideration of the above-described problems of the prior art, and provides a power supply device capable of easily and reliably retaining a plug connector with respect to a receptacle connector, and a server device including the power supply device. The purpose is to do.

  A power supply device according to the present invention is a power supply device including a receptacle connector on one surface of a housing for connecting a plug connector provided at the other end of a power cord having one end connected to an external power supply, A cord insertion hole through which a cord is inserted, a retaining portion for preventing the plug connector from coming off from the receptacle connector by locking a shoulder portion of the plug connector connected to the receptacle connector, and One end side is inserted into the housing while being able to advance and retreat from one surface, and the other end side has a base portion provided with the cord insertion hole and the retaining portion, and is provided to be able to advance and retreat from one surface of the housing. And when the plug holding member is pushed in a direction in which the plug holding member is pushed into the housing, the plug holding member is brought into a predetermined pushing position. Direction when the plug holding member held at the push-in position is further pushed in a direction to be pushed into the housing side, and the holding is released and the plug holding member is pushed out from one surface of the housing. And a push / push mechanism for moving the head to the head.

  According to such a configuration, when the plug connector is connected to the receptacle connector to prevent the plug connector from being pulled out, the power cord of the plug connector is inserted into the cord insertion hole, and the shoulder portion is arranged in accordance with the retaining portion. Then push the plug holding member into the housing. Then, the plug holding member is held in the pushing position by the push / push mechanism, and the plug connector is locked by the shoulder portion being locked by the retaining portion. That is, the plug connector can be easily and surely prevented from coming off from the receptacle connector by a simple operation of simply pushing the plug holding member, and high convenience can be obtained.

  In a state where the plug holding member is held at the pushing position, a push operation for releasing the holding is allowed between a shoulder portion of the plug connector connected to the receptacle connector and the retaining portion. When the plug connector moves within the gap, the electrical connection state between the plug connector and the receptacle connector may be maintained. In this case, even when the push / push mechanism is used, the electrical connection between the plug connector and the receptacle connector is reliably prevented from being disconnected while the plug connector is held by the plug holding member.

  The base portion of the plug holding member is provided with a connector insertion hole that communicates with the cord insertion hole, opens in a direction intersecting with the insertion / extraction direction of the plug connector with respect to the receptacle connector, and is inserted into the plug connector. The plug connector may be configured to be inserted into the connector insertion hole by moving the plug connector within an outer range of one surface of the housing. Then, the plug connector can be easily held by the plug holding member without interfering with other devices arranged on the top, bottom, left and right of the power supply device.

  It is good also as a structure provided with the sensor which detects the state by which the said plug holding member was hold | maintained at the said pushing position. Then, it is possible to detect a state in which the plug holding member is held at the pushed-in position and the plug connector is securely removed.

  When the sensor detects a state in which the plug holding member is held at the pushed-in position, a control unit that controls the power from the power supply device to an operation ready state that can be output to the outside may be provided. Then, the plug connector can be controlled so that the power supply device cannot be turned on unless the plug connector is connected to the receptacle connector and the plug holding member is set to the pushing position. Forgetting the operation is avoided.

  The control unit may be configured to issue an alarm signal to the outside when the sensor detects a state in which the holding of the plug holding member at the pushed position is released during operation of the power supply device. . Then, during operation, the plug holding member is operated from the pushed-in position to the protruding position, and the outside is quickly notified that the holding of the plug connector has been released. It can be operated to the pushing position. For this reason, it is avoided that the operation of the power supply device is continued in a state where the plug connector is not held by the plug holding member.

  A server device according to the present invention includes the power supply device having the above-described configuration.

  According to the present invention, the plug connector can be easily and surely prevented from coming off from the receptacle connector by a simple operation of simply pushing the plug holding member, and high convenience can be obtained.

FIG. 1 is a perspective view schematically showing a configuration of a server device equipped with a power supply device according to an embodiment of the present invention. FIG. 2 is a perspective view from the back side schematically showing the configuration of the power supply device. 3 is a partially cutaway perspective view of the power supply device shown in FIG. FIG. 4 is a perspective view showing a state where the plug holding member of the power supply device shown in FIG. 2 is pushed. FIG. 5 is a configuration diagram of the plug holding member shown in FIGS. 2 and 4 as seen from another angle. FIG. 6 is a front view of the back surface of the housing. FIG. 7 is a side view schematically showing the positional relationship between the plug holding member and the plug connector at the protruding position and the state of the push-push mechanism. FIG. 8 is a side view schematically showing a state where the plug holding member is pushed toward the housing from the state shown in FIG. FIG. 9 is a side view schematically showing a state where the plug holding member is set at the pushing position by the push-push mechanism by releasing the pushing of the plug holding member from the state shown in FIG. FIG. 10 is a side view schematically showing a state in which the holding by the push-push mechanism is released by pushing the plug holding member toward the housing from the state shown in FIG. FIG. 11 is a cross-sectional explanatory view schematically showing a state in which the plug connector connected to the receptacle connector is held by the plug holding member. FIG. 11A shows the plug connector inserted deeply into the receptacle connector. FIG. 11B is a diagram showing a state in which the plug connector has moved somewhat in the direction of detachment from the receptacle connector. FIG. 12 is a block configuration diagram illustrating a configuration example of a control system of the power supply apparatus.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a power supply device according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments in relation to a server device including this device.

  FIG. 1 is a perspective view schematically showing the configuration of a server device 12 equipped with a power supply device 10 according to an embodiment of the present invention. The server device 12 stores a plurality of blades 14 each having a function such as a CPU, a memory, and a hard disk in each shelf of the rack 16 to manage information and databases in a company, etc. A computer device used for Internet-based processing and the like. The present invention can be applied to power supply devices other than the server device 12, and can be suitably applied to, for example, a power supply unit for an emergency or regular storage battery.

  The power supply device 10 mounted on the server device 12 is a device that converts AC power supplied from, for example, a power supply source (external power supply) in a building to DC power and supplies the DC power to each blade 14. The power supply device 10 is configured as a power unit that is housed and disposed on an appropriate shelf of the rack 16, as with each blade 14. The power supply device 10 is housed in the rack 16 from the back of the rack 16, and the back 10 a is held by an openable fall prevention arm 18, thereby preventing the power supply 10 from falling off the rack 16.

  FIG. 2 is a perspective view from the back surface 10a schematically showing the configuration of the power supply apparatus 10, and FIG. 3 is a partially cutaway perspective view of the power supply apparatus 10 shown in FIG. FIG. 2 shows a state immediately before the plug connector 20 that supplies AC power from the external power source to the power supply device 10 is connected to the receptacle connector 22 on the back surface 10a. FIG. 3 shows a state in which most of the plug holding member 24 that prevents the plug connector 20 from coming off from the receptacle connector 22 is cut out and omitted. 4 is a perspective view showing a state where the plug holding member 24 of the power supply device 10 shown in FIG. 2 is pushed in, and FIG. 5 is a configuration of the plug holding member 24 shown in FIGS. 2 and 4 viewed from another angle. FIG. FIG. 6 is a front view of the rear surface 10 a of the housing 26 and shows a state in which the plug connector 20 is arranged inside the plug holding member 24.

  As shown in FIGS. 2 and 3, the power supply device 10 has a configuration in which a power conversion circuit that converts AC power into DC power is provided inside a flat box-shaped housing 26. On the back surface 10a of the housing 26, a receptacle connector 22 to which the plug connector 20 is connected, a plug holding member 24 for preventing the plug connector 20 connected to the receptacle connector 22 from being removed, and a cooling circuit for a power conversion circuit or the like. A fan 28 is provided. The power supply device 10 may be configured to convert DC power from an external power source into DC power having a different voltage.

  The receptacle connector 22 is a concave connector opened at the back surface 10a of the housing 26, and the plug connector 20 is inserted and connected thereto. Inside the receptacle connector 22, a plurality of terminals 22 a connected to an internal power conversion circuit or the like via wiring (not shown) protrudes. The plug connector 20 is a convex connector connected to the other end of the power cord 30 having one end connected to an external power source. The plug connector 20 is physically and electrically connected to the receptacle connector 22 by inserting a distal end portion 20b having a plurality of terminals 20a therein into the receptacle connector 22.

  The plug holding member 24 is a rectangular frame member formed in a substantially U shape in a plan view using a metal plate such as stainless steel or a resin plate, and is provided so as to be able to advance and retreat from the back surface 10 a of the housing 26. The plug holding member 24 is bent from both sides of the retaining portion 32, a retaining portion 32 that is a plate-like portion parallel to the rear surface 10 a, a cord insertion hole 34 formed in the retaining portion 32, and the rear surface 10 a. And a pair of left and right base portions 36 and 37 extending vertically.

  As shown in FIGS. 2 and 5, the cord insertion hole 34 is a long hole opened from the center of the retaining portion 32 toward the one base portion 36, and a connector insertion hole 38 formed in the base portion 36. Communicating with The inner diameter of the cord insertion hole 34 is set such that the power cord 30 connected to the plug connector 20 can be inserted and the shoulder portion 20c of the plug connector 20 cannot be inserted. The shoulder portion 20 c of the plug connector 20 is a portion to which the power cord 30 is connected, and is formed in an outer shape larger than the power cord 30.

  The retaining portion 32 is provided at the peripheral portion of the cord insertion hole 34, and is a plate that retains the plug connector 20 from the receptacle connector 22 by locking the shoulder portion 20 c of the plug connector 20 connected to the receptacle connector 22. It is a shaped part. As shown in FIGS. 2 and 4, the plug connector 20 that is disposed inside the plug holding member 24 and in which the power cord 30 is inserted into the cord insertion hole 34 has a shoulder portion 20 c at the periphery of the cord insertion hole 34. By being caught by the retaining portion 32 that forms the portion, movement in the direction of removal from the receptacle connector 22 is prevented.

  Each of the base portions 36 and 37 is inserted in a state in which one end side thereof is slidably retained in slide holes 40 and 41 formed on the back surface 10 a of the housing 26, and the other end side is retained on the retaining portion 32. Connected by The slide holes 40 and 41 are vertically narrow holes formed in the left and right sides of the receptacle connector 22 on the back surface 10a of the housing 26, respectively.

  A connector insertion hole 38 communicating with the cord insertion hole 34 is formed in one base portion 36 on the center side of the back surface 10 a of the housing 26. The connector insertion hole 38 opens in a direction (right and left direction of the housing 26) that intersects (is orthogonal to the present embodiment) the insertion / extraction direction of the plug connector 20 with respect to the receptacle connector 22.

  As shown in FIGS. 5 and 6, the plug connector 20 is moved in a direction orthogonal to the insertion / removal direction with respect to the receptacle connector 22 to be inserted into the connector insertion hole 38. As a result, the plug connector 20 is disposed inside the plug holding member 24, and at the same time, the power cord 30 is inserted into the cord insertion hole 34 through the boundary portion between the connector insertion hole 38 and the cord insertion hole 34.

  As described above, the plug connector 20 is inserted and arranged from the side of the plug holding member 24 to the inside of the plug holding member 24, so that it is within the outer range of the back surface 10a of the housing 26 (in the front view of the back surface 10a). The plug connector 20 can be moved and inserted into the connector insertion hole 38 within the outer shape range of the back surface 10a, that is, within the projected area of the back surface 10a. As a result, the plug connector 20 can be easily held by the plug holding member 24 without interfering with the upper and lower and left and right other blades 14 of the power supply device 10 mounted on the rack 16 of the server device 12. The same applies to the configuration in which the power supply device 10 is stored vertically in the rack 16. In this case, for example, the plug connector 20 may be inserted from above or below the connector insertion hole 38 within the outer range of the back surface 10 a. .

  A substantially triangular projecting piece 36a is provided on the distal end surface of the base portion 36 disposed in the housing 26 (see FIG. 5). A detection piece 39a of a sensor 39 that is disposed in the housing 26 and detects the pushing position of the plug holding member 24 is in contact with the lower inclined surface of the protruding piece portion 36a, which will be described in detail later.

  A cam support plate 44 that constitutes a push-push mechanism 42 is connected to a portion of the other base portion 37 that is located on the right side of the back surface 10a of the housing 26 and disposed in the housing 26 (FIG. 5). reference).

  Such a plug holding member 24 can be moved forward and backward from the back surface 10 a of the housing 26 by providing the left and right base portions 36 and 37 so as to be slidable with respect to the slide holes 40 and 41. At this time, one base portion 36 is slidable and supported in the housing 26 so as to be prevented from coming off, and the other base portion 37 is slidable and supported in the housing 26 so as to be retained. It can be held at the slide position. As a result, the plug holding member 24 is movable to a protruding position that protrudes from the back surface 10a of the housing 26 as shown in FIG. 2 and a pushed-in position that is pushed in as shown in FIG.

  Therefore, the configuration and operation of the push-push mechanism 42 that holds the advance / retreat position of the plug holding member 24 with respect to the back surface 10a of the housing 26 will be described together with the connection operation of the plug connector 20 to the receptacle connector 22.

  7 is a side view schematically showing the positional relationship between the plug holding member 24 and the plug connector 20 at the protruding position and the state of the push-push mechanism 42. FIG. 8 is a side view of the plug holding member from the state shown in FIG. It is a side view which shows typically the state which pushed 24 toward the housing | casing 26. FIG. FIG. 9 is a side view schematically showing a state where the plug holding member 24 is set to the pushing position by the push-push mechanism 42 by releasing the pushing of the plug holding member 24 from the state shown in FIG. FIG. 10 is a side view schematically showing a state in which the holding by the push-push mechanism 42 is released by pushing the plug holding member 24 toward the housing 26 from the state shown in FIG.

  First, a configuration example of the push / push mechanism 42 will be described. The push / push mechanism 42 may have another configuration as long as it is a mechanism that can hold the plug holding member 24 in the pushed position by a push operation and release the hold by the push operation to return it to the protruding position. Alternatively, a conventionally known mechanism (sometimes referred to as a push-on / push-off mechanism or the like) can be used.

  As shown in FIG. 7, the push / push mechanism 42 is connected and fixed to the base portion 37 of the plug holding member 24, and is fixed to the cam support plate 44 that rotatably supports the cam member 46 and the inner surface of the housing 26. And a support member 48 that slidably supports the cam support plate 44.

  One end of the cam support plate 44 is connected and fixed to the base portion 37 of the plug holding member 24 by a connecting portion 50 such as a screw, and the other end side supporting the cam member 46 is slidably supported by the support member 48. A pair of guide pins 44 a are provided on the other end side of the cam support plate 44. Each guide pin 44a is slidably inserted into a pair of guide long holes 48a, 48a provided in the support member 48 and guided. The cam member 46 has a pair of cam grooves 46a, 46a that are provided symmetrically with respect to each other and are recessed in a triangular shape.

  The support member 48 is fixed to the inner surface of the housing 26 so as to slidably support the cam support plate 44 that slides relative to the housing 26 together with the plug holding member 24. A cam operation hole 52 extending in the sliding direction of the cam support plate 44 is formed at a position near the one end side of the support member 48 and between the pair of guide long holes 48a. The cam operating hole 52 is a hole for setting the cam member 46 at a predetermined rotational position while guiding it. A pair of protrusions 52 a and 52 b that face each other diagonally in the sliding direction of the cam member 46 protrudes inside the cam operation hole 52.

  A torsion coil spring 54 is supported behind the cam operating hole 52 of the support member 48. One end of the torsion coil spring 54 is supported by the support member 48 and the other end is supported by the distal end surface of the cam support plate 44, so that the cam support plate 44 is always on the left side in FIG. It is biased in the direction toward the protruding position.

  Next, the connection operation of the plug connector 20 to the receptacle connector 22, the advance / retreat operation of the plug holding member 24 using the push / push mechanism 42 related to this connection operation, and the operation thereof will be described.

  First, when the plug connector 20 is connected to the receptacle connector 22, as shown in FIGS. 2 and 7, the plug holding member 24 is set to the protruding position via the push / push mechanism 42. At this time, since the detection piece 39a of the sensor 39 is not pressed by the protruding piece 36a of the base portion 36 of the plug holding member 24, the sensor 39 is turned off. At this protruding position, the plug holding member 24 that is substantially U-shaped in plan view protrudes greatly from the back surface 10a of the housing 26, so that the operator holds the plug holding member 24 as a handle and holds the power supply device 10 in the rack. It can be stored or extracted from 16 shelves.

  Subsequently, as shown in FIGS. 5 and 6, the plug connector 20 is inserted into the connector insertion hole 38 from the side of the plug holding member 24 at the protruding position on the base portion 36 side, and at the same time, the power cord 30 is inserted into the cord. The hole 34 is inserted from the side. As a result, the plug connector 20 is disposed inside the plug holding member 24 at the protruding position, and the power cord 30 is pulled out from the cord insertion hole 34 (see FIGS. 2 and 7).

  As shown in FIG. 8, a push operation for pushing the plug holding member 24 toward the back surface 10 a of the housing 26 is performed. Then, since the plug holding member 24 slides toward the housing 26, the shoulder 20 c of the plug connector 20 is pressed by the retaining portion 32 and slides together with the plug holding member 24. When the plug holding member 24 is pushed to the innermost side, the distal end portion 20b of the plug connector 20 is inserted into the receptacle connector 22 so that the terminals 20a and 22a are electrically connected to each other, and the connection between the plug connector 20 and the receptacle connector 22 is established. Is completed. At this time, as shown in FIG. 8, the cam member 46 rotates with its cam groove 46 a in contact with the protrusion 52 a on the back side of the cam operation hole 52 of the support member 48. Note that the plug connector 20 may be connected to the receptacle connector 22 in advance before the plug holding member 24 is pushed in.

  Subsequently, when the pushing force to the plug holding member 24 is released, as shown in FIG. 9, the cam support plate 44 (and the plug holding member 24) is moved slightly forward by the biasing force of the torsion coil spring 54, and the cam member The cam groove 46 a of 46 is in contact with and locked to the protrusion 52 b on the front side of the cam operating hole 52.

  Accordingly, the plug holding member 24 is held in the pushed position via the push / push mechanism 42 (see FIGS. 4 and 9). Thus, when the plug holding member 24 is set to the pushing position, the retaining portion 32 is disposed at a position close to the shoulder portion 20c of the plug connector 20. As a result, the movement of the plug connector 20 in the direction away from the receptacle connector 22 is restricted, and the plug connector 20 is prevented from being detached (locked). At this time, the detection piece 39a of the sensor 39 is pressed by the protruding piece portion 36a of the one base portion 36 of the plug holding member 24, and the sensor 39 is turned on. The ON signal of the sensor 39 is processed by the control unit 60 described later (see FIG. 12).

  In the case of the present embodiment, the plug holding member 24 that holds the plug connector 20 in this way is held in the pushed position by the push / push mechanism 42. For this reason, as shown in FIG. 9, with the plug holding member 24 held in the pushed-in position, a push operation when releasing the holding state is performed between the shoulder portion 20c of the plug connector 20 and the retaining portion 32. An allowance gap is formed, and the plug connector 20 can move in the insertion / removal direction within the gap (see FIGS. 11A and 11B). However, in the power supply device 10, as shown in FIGS. 11A and 11B, when the plug connector 20 moves in the insertion / removal direction within the range of the gap between the shoulder portion 20c and the retaining portion 32. Even so, the contact state between the terminals 20a and 22a of the plug connector 20 and the receptacle connector 22 is always maintained. As a result, as long as the plug holding member 24 is held at the pushing position, the electrical connection state between the plug connector 20 and the receptacle connector 22 is always maintained even if the plug holding member 24 moves back and forth.

  On the other hand, when the plug connector 20 connected to the receptacle connector 22 is removed, the plug holding member 24 held at the pushing position is pushed again toward the back side as shown in FIG. Then, as shown in FIG. 10, the locking state between the cam groove 46a of the cam member 46 and the protrusion 52b on the front side of the cam operating hole 52 is released, and the cam member 46 is now in contact with the protrusion 52a on the back side. Rotate. Therefore, when the pushing force to the plug holding member 24 is released, the cam support plate 44 and the plug holding member 24 are moved to the near side by the biasing force of the torsion coil spring 54, and the cam member 46 is a protrusion on the near side of the cam operating hole 52. It passes by the side of this protrusion 52b, without being latched by 52b. As a result, the plug holding member 24 is set to the protruding position again as shown in FIG.

  Therefore, after that, the plug connector 20 is grasped and pulled out from the receptacle connector 22, and the plug connector 20 and the power cord 30 are pulled out from the connector insertion hole 38 and the cord insertion hole 34 to the side. Thereby, the plug connector 20 can be completely removed from the plug holding member 24.

  FIG. 12 is a block configuration diagram illustrating a configuration example of a control system of the power supply device 10.

  As illustrated in FIG. 12, the control unit 60 installed in the housing 26 of the power supply device 10 includes a power supply control unit 62 and an alarm transmission control unit 64. A signal from the sensor 39 is input to the control unit 60. Further, a power button 66 that is a start switch of the power supply apparatus 10 is connected to the control unit 60.

  The power supply control unit 62 converts, for example, power from an external power supply 68 that is a power supply source in a building into a predetermined voltage and the like and supplies it to the power receiving device 70 such as each blade 14 of the server device 12. . When receiving an ON signal from the sensor 39, the alarm transmission control unit 64 transmits an instruction to issue an alarm to the alarm unit 72 provided in each unit of the power supply device 10 or the server device 12. The alarm means 72 is, for example, an LED lamp that notifies an alarm when the lamp is turned on or blinking, a speaker that generates an alarm sound, a notification means that transmits an alarm mail to a predetermined address, and the like.

  Such a control unit 60 determines that the plug connector 20 is connected to the receptacle connector 22 when the sensor 39 detects a state in which the plug holding member 24 is held in the pushed-in position (see FIG. 9), for example. Then, the power supply control unit 62 is controlled to an operation preparation state in which the power from the power supply device 10 can be output to the external power receiving device 70. The power supply control unit 62 is activated by receiving an ON operation by the power button 66 only in this operation preparation state, and can perform control to supply predetermined power to the power receiving device 70. As a result, the power supply device 10 cannot be turned on unless the plug connector 20 is connected to the receptacle connector 22 and the plug holding member 24 is set to the pushing position. Forgetting the stop operation is avoided.

  Further, for example, when the sensor 39 detects a state in which the holding of the plug holding member 24 in the pushed-in position is released during the operation of the power supply device 10, that is, the sensor 39 generates an off signal during the operation. In this case, it is determined that the holding state of the plug connector 20 by the plug holding member 24 has been released. Then, the alarm transmission control unit 64 performs control for transmitting a predetermined alarm signal to the external alarm means 72. As a result, during operation of the server device 12, the plug holding member 24 is operated from the push-in position to the protruding position, and it is quickly notified to the outside that the holding of the plug connector 20 has been released. The plug holding member 24 can be operated again to an appropriate pushing position. For this reason, it is avoided that the operation of the power supply apparatus 10 is continued in a state where the plug connector 20 is not held by the plug holding member 24. As a result, it is possible to prevent the plug connector 20 from being accidentally removed from the receptacle connector 22 during operation and the power supply of the server device 12 from being momentarily cut off.

  As described above, in the power supply device 10 according to the present embodiment, the cord insertion hole 34 through which the power cord 30 is inserted, and the shoulder of the plug connector 20 provided at the peripheral portion of the cord insertion hole 34 and connected to the receptacle connector 22. A locking portion 32 that prevents the plug connector 20 from coming off from the receptacle connector 22 by locking the portion 20c, and one end side of the plug connector 20 being inserted into the casing 26 in a state where the plug connector 20 can be advanced and retracted from the back surface 10a. A plug holding member 24 having a base portion 36 and 37 provided with a cord insertion hole 34 and a retaining portion 32 on the other end side, provided so as to be able to advance and retreat from the back surface 10a of the housing 26, and a plug holding member 24. Is pushed in the direction to be pushed into the casing 26, the plug holding member 24 is held at a predetermined pushing position, while being held at the pushing position. A push-push mechanism 42 that releases the holding when the plug holding member 24 is further pushed in the direction in which the plug holding member 24 is pushed into the housing 26 and moves the plug holding member 24 in the direction in which the plug holding member 24 is pushed out from the back surface 10a of the housing 26; Prepare.

  Accordingly, when the plug connector 20 is connected to the receptacle connector 22 and is prevented from being detached, the power cord 30 of the plug connector 20 is inserted through the cord insertion hole 34 and the shoulder portion 20c is disposed to face the retaining portion 32. In this state, the plug holding member 24 is pushed into the housing 26 (see FIGS. 7 to 9). Then, the plug holding member 24 is held in the push-in position by the push / push mechanism 42, and the plug connector 20 is locked by the shoulder portion 20c being locked by the retaining portion 32. That is, the plug connector 20 can be easily and surely prevented from coming off from the receptacle connector 22 by a simple operation by simply pushing the plug holding member 24, and high convenience can be obtained.

  Since the push / push mechanism 42 is used in this manner, the plug holding member 24 is held between the shoulder portion 20c of the plug connector 20 connected to the receptacle connector 22 and the retaining portion 32 in a state where the plug holding member 24 is held in the pushed position. Will form a gap that allows a push operation (see FIG. 10) to release the holding. Therefore, the power supply device 10 is configured to maintain the electrical connection state between the plug connector 20 and the receptacle connector 22 when the plug connector 20 moves within the range of the gap (FIG. 11A). ) And FIG. 11B). This reliably avoids disconnection of the electrical connection between the plug connector 20 and the receptacle connector 22 while the plug connector 20 is held by the plug holding member 24.

  In the power supply device 10, the plug holding member 24 can be set to a protruding position that protrudes greatly from the back surface 10 a of the housing 26 by the push-push mechanism 42. For this reason, the operator can grip and hold the plug holding member 24 as a handle, and can easily and smoothly store or remove the power supply device 10 from the shelf of the rack 16. Moreover, the plug holding member 24 is disposed at a pushing position close to the back surface 10 a of the housing 26 in a state where the plug connector 20 is held. For this reason, the amount of protrusion of the plug holding member 24 can be minimized when use as a handle is not required, so that a large number of plug holding members 24 are arranged on the fall prevention arm 18 of the rack 16 or the back side of the rack 16. Interference with various cords to be searched can be prevented.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Power supply device 10a Back surface 12 Server apparatus 14 Blade 16 Rack 18 Fall prevention arm 20 Plug connector 20a, 22a Terminal 20b Tip part 20c Shoulder part 22 Receptacle connector 24 Plug holding member 26 Case 30 Power supply cord 32 Retaining part 34 Cord insertion hole 36, 37 Base part 38 Connector insertion hole 39 Sensor 39a Detection piece 42 Push / push mechanism 44 Cam support plate 46 Cam member 48 Support member 52 Cam operation hole 54 Torsion coil spring 60 Control part 62 Power supply control part 64 Alarm transmission control part 66 Power button 68 External power supply 70 Power receiving device 72 Alarm means

Claims (7)

A power supply device having a receptacle connector on one side of a housing for connecting a plug connector provided at the other end of a power cord whose one end is connected to an external power source,
A cord insertion hole through which the power cord is inserted, a retaining portion for preventing the plug connector from coming out of the receptacle connector by locking a shoulder portion of the plug connector connected to the receptacle connector, and the housing One end side is inserted into the housing while being able to advance and retreat from one surface of the body, and the other end side has the base portion provided with the cord insertion hole and the retaining portion, and can advance and retreat from one surface of the housing. A plug holding member provided on
When the plug holding member is pushed in a direction to be pushed into the housing side, the plug holding member is held at a predetermined pushing position, while the plug holding member held at the pushing position is pushed into the housing side. A push-push mechanism for releasing the holding when the operation is further pushed in the direction to be pushed and moving the plug holding member in a direction to push out from one surface of the housing;
A power supply apparatus comprising: The power supply device according to claim 1, wherein
In a state where the plug holding member is held at the pushing position, a push operation for releasing the holding is allowed between a shoulder portion of the plug connector connected to the receptacle connector and the retaining portion. Gap is formed,
When the plug connector moves within the range of the gap, an electrical connection state between the plug connector and the receptacle connector is maintained. The power supply device according to claim 1 or 2,
The base portion of the plug holding member is provided with a connector insertion hole that communicates with the cord insertion hole, opens in a direction intersecting with the insertion / extraction direction of the plug connector with respect to the receptacle connector, and is inserted into the plug connector. And
A power supply apparatus, wherein the plug connector can be inserted into the connector insertion hole by movement of the plug connector within an outer range of one surface of the housing. The power supply device according to any one of claims 1 to 3,
A power supply apparatus comprising: a sensor that detects a state in which the plug holding member is held at the pushing position. The power supply device according to claim 4, wherein
A power supply comprising a control unit that controls the power from the power supply device to an operation ready state that can be output to the outside when the sensor detects a state in which the plug holding member is held in the pushed-in position. apparatus. The power supply device according to claim 5, wherein
The control unit sends an alarm signal to the outside when the sensor detects a state in which the holding of the plug holding member at the pushed-in position is released during operation of the power supply device. apparatus.   A server device comprising the power supply device according to claim 1.

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