JP5728071B2 - Female connector and power supply unit - Google Patents

Description

  The present invention relates to a female connector and a power supply unit used for supplying power.

  Generally, an electric device operates by receiving power from a power source. As described above, when power is supplied from the power source, the power is supplied from the power source to the electrical device via the normal connector. As disclosed in Patent Literatures 1 and 2, the connector used at this time is electrically connected by fitting a convex male connector and a concave female connector. Is.

  On the other hand, in recent years, as one of the countermeasures against global warming and the like, even in power transmission in the local area, there is little power loss in voltage conversion and power transmission, etc., and there is no need to increase the thickness of the cable. Supply is being considered. In particular, in an information device such as a server, such a power supply is desirable because it consumes a large amount of power.

  As described above, regarding the electric power supplied to the electric device, a high voltage may affect the human body or the operation of the electronic component.

  When such high-voltage power is used for information equipment such as servers, since installation is performed and maintenance is performed by a person, a connector that is an electrically connected part is usually used. It is necessary to make it different from that used for commercial AC power.

JP-A-5-82208 JP 2003-31301 A

  The present invention has been made in view of the above points. In particular, it is an object of the present invention to provide a female connector and a power supply unit capable of safely supplying high-voltage power.

Further, the present invention provides a female connector connected to a male connector for electrically connecting a power source and an electronic device that receives power supply from the power source, wherein the female connector fixes a joint with the male connector. A detachable lock for controlling, a control switch, and a joining switch, and by fitting the female connector and the male connector, the detachable lock moves along with the mating operation of the male connector , The connection between the male connector and the female connector is fixed, and the contact of the control switch is connected by depressing the connection switch in the fitted state of the male connector and the female connector. The female connector and the male connector the through, at the same time the power from the power source is supplied to the electronic device, der which the detachable locking is secured by said joint switch It is characterized in.

Further, the present invention provides a power supply unit provided with a plurality of other connectors connected to one connector for electrically connecting a power source and an electronic device receiving power supply from the power source. connector, a detachable lock for securing the junction with the one connector, and control switch, has a junction switch, by fitting the one connector and the other connector, the one The attachment / detachment lock is moved in accordance with the fitting operation of the connector, the joining of the one connector and the other connector is fixed, and the joining switch is pressed in the fitting state of the one connector and the other connector. By doing so, the contact of the control switch is connected, and the electric power is supplied from the power source through the other connector and the one connector. At the same time supplied to the child apparatus, characterized in that the said joint switch in which the detachable lock is fixed.
Further, the one connector is a male connector, and the other connector is a female connector.

  Further, the present invention is characterized in that the control switch is a leaf spring switch made of metal.

  Further, according to the present invention, the detachable lock has a claw-like part on one side and a circular convex part on the other side, and has a rotation shaft at the center part and is fixed to the female connector in a rotatable state. When the male connector is fitted into the female connector, the main body of the male connector pushes the circular convex portion, and the attachment / detachment lock rotates, so that the claw-shaped portion becomes the main body of the male connector. And the joint between the male connector and the female connector is fixed.

  In the present invention, the male connector is provided with a grounding plug terminal, the female connector is provided with a grounding jack terminal corresponding to the grounding plug terminal, and the female connector and the male connector are provided. In the state of being fitted, the grounding plug terminal and the grounding jack terminal are in a fitted state.

  Further, the present invention is characterized in that the power supplied from the power source is a direct current.

  Further, the present invention is characterized in that the voltage of power supplied from the power source is a voltage exceeding 48V.

  ADVANTAGE OF THE INVENTION According to this invention, the female connector and electric power supply unit which can supply high voltage electric power safely can be provided.

Wiring diagram of the connector in the first embodiment Configuration diagram of female connector in first embodiment Configuration diagram of male connector in the first embodiment The transparent side view of the fitting state of the connector in a 1st embodiment Explanatory drawing of the joining method of the female connector and male connector in 1st Embodiment Configuration diagram of a power supply system using the connector in the first embodiment The perspective view of PDU using the connector in a 1st embodiment Configuration diagram of male connector in second embodiment Transparent side view of the fitting state of the connector in the second embodiment

[First Embodiment]
(Whole connector)
A male connector, a female connector, and a connector in the present embodiment will be described.

  In FIG. 1, the outline | summary of the structure of the male connector in this Embodiment, a female connector, and a connector is shown.

  The connector in the present embodiment includes a male connector 10 and a female connector 20. The male connector 10 is connected to an information device 40 such as a server via a power cable 15, and includes two power plug terminals 11 and 12 for receiving power supply, and a grounding plug terminal 13 for grounding. have.

  On the other hand, the female connector 20 is connected to a high voltage power source 50 for supplying electric power. The female connector 20 has power jack terminals 21 and 22 corresponding to the power plug terminals 11 and 12 and a ground jack terminal 23 corresponding to the ground plug terminal 13.

  The female connector 20 is provided with two control switches 31 and 32. The control switches 31 and 32 are configured by leaf spring-shaped switches or the like, and a current flows when the contacts come into contact with each other.

  A junction switch 90 for connecting the contacts of the control switches 31 and 32 is provided. When the junction switch 90 is pressed, the contacts of the control switches 31 and 32 are connected.

  One terminal of the control switch 31 is connected to the positive output of the high-voltage power supply 50, and the other terminal is connected to the power jack terminal 21. One terminal of the control switch 32 is connected to the negative output of the high-voltage power supply 50, and the other terminal is connected to the power jack terminal 22.

  By connecting the contacts of the control switches 31 and 32, power is supplied to the power jack terminals 21 and 22 in the female connector 20, and further, through the power plug terminals 11 and 12 in the male connector 10, a server or the like. Power is supplied to the information device 40.

  In the connector in the present embodiment, control switches 31 and 32 are connected to each of the power jack terminals 21 and 22, and this is a high-voltage DC power having a voltage exceeding 48 V, and further a voltage exceeding 200 V. In this case, since the danger given to the human body by contact is extremely high, the control switches 31 and 32 are provided and connected to both the power jack terminals 21 and 22, so that the power jack terminals 21 and 22 are connected to both. The power supply is controlled to further enhance safety.

(Female connector)
Next, the structure of the female connector in the present embodiment will be described with reference to FIG. 2 (a) is a top view of the female connector 20 in the present embodiment, and FIG. 2 (b) is a front view of a part seen from the arrow A in FIG. 2 (a). 2 (c) is a side view through which a part seen from the arrow B in FIG. 2 (a) is transmitted.

  The female connector 20 in the present embodiment is formed with a recess 25 so that a male connector 10 to be described later can be inserted, and power jack terminals 21 and 22 and a grounding jack are provided below the bottom surface of the recess 25. A terminal 23 is provided. As described above, one terminal of the control switch 31 is connected to the positive output of the high-voltage power supply 50, and the other terminal is connected to the power jack terminal 21. One terminal of the control switch 32 is connected to the negative output of the high-voltage power supply 50, and the other terminal is connected to the power jack terminal 22.

An attachment / detachment lock 80 is provided on the side surface of the recess 25 of the female connector 20. The detachable lock 80 has a claw-shaped portion 81 on one side and a circular convex portion 82 on the other side. The attachment / detachment lock 80 is provided with a rotation shaft 83 at the center thereof, and is joined to the main body of the female connector 20 via the rotation shaft. Thereby, the detachable lock 80 is configured to be rotatable around the rotation shaft 83. In addition, a winding spring 84 is provided around the rotation shaft 83, and when the male connector 10 is not fitted in the recess 25 of the female connector 20, the circular convex portion 82 is formed in the recess 25 of the female connector 20. It will be in the state which protruded to the side of. In addition, a stopper portion 85 to be described later is provided on the other side of the detachable lock 80 together with a circular convex portion 82. The stopper portion 85 is configured by an L-shaped protrusion that extends substantially parallel to the rotation shaft 83.

(Male connector)
Next, the male connector 10 according to the present embodiment will be described with reference to FIG. 3A is a bottom view of the male connector 10 according to the present embodiment, FIG. 3B is a front view of the male connector 10 according to the present embodiment, and FIG. 3C is a view according to the present embodiment. 3 is a top view of the male connector 10. FIG.

The male connector 10 in the present embodiment has power plug terminals 11 and 12 and a grounding plug terminal 13 on the flange 16 side. The main body of the male connector 10 is connected to the power cable 15 and is provided with a lock hook 17 having a structure in which a part of the main body is removed along the insertion direction. The flange 16 is used not only for the function of rotating the attachment / detachment lock 80 of the female connector 20 to be described later and for fixing the female connector 20 and the male connector 10, but also when a person inserts and removes the male connector 10 from the female connector 20. It also has the function of increasing the insulation state with the human body.

  Note that the lock hooking portion 17 of the male connector 10 in the present embodiment is not limited to the above-described structure, and a part of the main body in the vicinity of the flange 16 as shown in FIGS. 3 (d) and 3 (e). It may be a lock hook 17 having a structure from which is removed. 3D is a front view of the male connector 10 having such a structure, and FIG. 3E is a side view of the male connector 10.

  In the present embodiment, the power plug terminals 11 and 12 and the grounding plug terminal 13 have a cylindrical configuration, but may be of a blade type.

(Connector connection)
Next, a state where the male connector 10 and the female connector 20 are fitted will be described with reference to FIG. FIG. 4 is a side view in which a part of the female connector 20 shown in FIG. 2 and the male connector 10 shown in FIG.

When the male connector 10 is engaged with the female connector 20, the power plug terminal 12 (11) is engaged with the power jack terminal 22 (21), and the ground plug terminal 13 is connected to the ground jack terminal 23. To fit. Further, when the male connector 10 is fitted to the female connector 20, the side surface of the flange 16 of the male connector 10 comes into contact with the circular convex portion 82 of the detachable lock 80 provided on the female connector 20 and pushes this portion. . The force by which the circular convex portion 82 is pressed causes the detachable lock 80 to rotate about the rotation shaft 83 from the state indicated by the broken line to the state indicated by the solid line, and the claw-shaped portion 81 of the detachable lock 80 is moved to the male connector. The flange 16 in the region where the ten lock hooks 17 are formed is fixed. Thereby, the fitting state of the male connector 10 and the female connector 20 can be maintained. In this state, the detachable lock 80 can rotate around the rotation shaft 83, and the male connector 10 can be pulled out from the female connector 20. At this time, the detachable lock 80 returns to the state before the male connector 10 is inserted into the original female connector 20 by the winding spring 84.

  In this state, the power plug terminal 12 (11) of the male connector 10 is fitted to the power jack terminal 22 (21) of the female connector 20, but is connected to the power jack terminal 22 (21). Since the contact point of the control switch 32 (31) is still open, the power from the power source is not supplied to the power jack terminal 22 (21) and the power plug terminal 12 (11). Not in.

  Next, the junction switch 90 for supplying electric power will be described with reference to FIG. FIG. 5 shows the structure of the joining switch 90 of the female connector 20 in the present embodiment. FIG. 5A shows a state before the male connector 10 of the present embodiment is fitted to the female connector 20. FIG. 5B is a side view through a part of the joining switch 90 in a state before the joining switch 90 is pushed, and FIG. 5B is a view of the joining switch 90 viewed from the arrow C in FIG. It is the front view which permeate | transmitted one part. FIG. 5 (c) is a side view of a part of the joining switch 90 in a state where the male connector 10 of the present embodiment is fitted to the female connector 20 and the joining switch 90 is pressed. FIG.5 (d) is the front view which permeate | transmitted a part of junction switch 90 seen from the arrow C in FIG.5 (c).

  The joining switch 90 is formed by a push button switch or the like, and is configured to be pushed in to be turned on when pressed once, to return to its original state when pressed again.

  As shown in FIGS. 5A and 5B, the joining switch 90 includes a contact pressing shaft 91 for pressing the control switch 32 (31) and a notch portion 92 to which the stopper portion 85 of the detachable lock 80 can move. And a stopper fixing portion 93 for fixing the stopper portion 85 of the attachment / detachment lock 80 in a state where the joining switch 90 is pushed, a winding spring 94 for returning from the pushed state, and a rotation each time the joining switch 90 is pushed. The knock rotating unit 95 is alternately turned on and off. In this state, since the joining switch 90 is not pushed, the contact of the control switch 32 (31) is in an open state and not connected.

By fitting the male connector 10 in the recess 25 such female connector 20, as shown in FIG. 4, a circular convex portion 82 of the detachable locking 80 by the flange 16 of the male connector 10 is pressed, detachable The lock 80 rotates around the rotation shaft 83. By this rotation, the stopper portion 85 of the attachment / detachment lock 80 can pass through the notch portion 92 in the joining switch 90.

Thereafter, as shown in FIGS. 5C and 5D, the joining switch 90 is pushed in a state where the male connector 10 is fitted in the recess 25 of the female connector 20. By pressing the joining switch 90, the control switch 32, which is a leaf spring switch, is bent by the pressed force, and the contact is closed and connected. Thereby, the electric power from the high voltage power supply 50 is supplied via the power jack terminal 22 (21) and the power plug terminal 12 (11).

On the other hand, by fitting the male connector 10 into the recess 25 of the female connector 20, as shown in FIG. 4, the detachable lock 80 is rotated, and the claw-shaped portion 81 of the detachable lock 80 is The flange 16 is caught. By pressing the joining switch 90 in this state, the stopper portion 85 of the attachment / detachment lock 80 is fixed by the stopper fixing portion 93 of the attachment switch 90, and the attachment / detachment lock 80 can rotate around the rotation shaft 83. It becomes impossible.

  In such a state where the detachable lock 80 cannot rotate, the claw-like portion 81 of the detachable lock 80 of the female connector 20 is caught by the flange 16 of the male connector 10, and the male connector 10 cannot be pulled out from the female connector 20. The fitting state between the connector 20 and the male connector 10 is maintained.

  It should be noted that when the joining switch 90 in the present embodiment is pressed again, the knock rotating portion 95 rotates, and returns to the original extended state by the force of the winding spring 94. In this state, the stopper portion 85 of the attachment / detachment lock 80 is movable, and the fitting between the male connector 10 and the female connector 20 can be removed.

(Power supply system)
Next, the configuration of the power supply system using the connector in the present embodiment will be described.

  FIG. 6 shows a configuration of a power supply system using the connector in the present embodiment.

  In this power supply system, AC100V or AC200V power supplied from a commercial power supply 70 is input to the high-voltage power supply 50, and the AC / DC converter 51 in the high-voltage power supply 50 converts AC100V or AC200V to DC400V. Since direct-current power can be stored by a battery or the like, by providing a battery 52 for backup, it is possible to easily cope with a power outage or the like. The female connector 20 in the present embodiment is connected to the high voltage power supply 50 via a power cable, and 400 VDC power from the high voltage power supply 50 is supplied from the female connector 20.

  On the other hand, the male connector 10 in the present embodiment is connected to an information device 40 such as a server via a power cable 15, and the female connector 20 and the male connector 10 are electrically connected to each other from the high voltage power supply 50. Is supplied to the information device 40 such as a server.

  Also, in the information device 40 such as a server, a DC / DC converter 41 that converts 400 VDC into a low voltage DC output capable of operating electronic components such as the CPU 42 is provided.

  In such a power supply system, conversion from AC to DC from the commercial power source 70 is only one time, so there is little power loss. With 400 VDC, which is a high-voltage direct current, the thickness of the conductors and the like is a concern. Since it is not necessary and it is direct current, it can be stored in the battery 52, and even when the supply of the commercial power supply 70 is stopped due to a power failure or the like, there are advantages such as easy handling.

  Next, a PDU (power distribution unit) using the connector according to the present embodiment will be described with reference to FIG.

  400 VDC supplied from the high-voltage power supply 50 shown in FIG. 6 is temporarily input to the distribution board 170, and power is distributed to each PDU (power distribution unit) 30. Each PDU 30 is provided with a plurality of female connectors 20 in the present embodiment, and 400 VDC power can be supplied via each female connector 20. On the other hand, a plurality of information devices 40 such as servers are accommodated in the server rack 45, and a male connector 10 for receiving power supply is connected to each information device 40 such as a server via a power cable 15. ing. The male connector 10 is configured to be supplied with power of 400 VDC by being electrically connected to the female connector 20 provided in the PDU 30.

[Second Embodiment]
In the second embodiment, a male connector is provided with a detachable pin that rotates a detachable lock.

  Specifically, the male connector 110 in the present embodiment will be described with reference to FIG. 8A is a bottom view of the male connector 110 according to the present embodiment, FIG. 8B is a front view of the male connector 110 according to the present embodiment, and FIG. 8C is a view according to the present embodiment. 3 is a top view of a male connector 110. FIG.

The male connector 110 according to the present embodiment has power plug terminals 111 and 112, a grounding plug terminal 113, and an attachment / detachment pin 114 on the flange 116 side. The main body of the male connector 110 is connected to the power cable 115, and is provided with a lock hook 117 having a structure in which a part of the main body is removed along the insertion direction. The flange 116 is not only used when the male connector 110 is fixed by the detachable lock 180 of the female connector 120 described later, but also has a function of enhancing the insulation state with respect to the human body when the human connector 110 is inserted into and removed from the female connector 120. Have.

  Note that the male connector 110 in the present embodiment is not limited to the above-described one, and as shown in FIG. 8D, between the power plug terminals 111 and 112, the ground plug terminal 113, and the attachment / detachment pin 114. By providing the protrusion 119 on the surface, the creeping distance between the electrodes can be increased. Further, the protrusion 119 may be a groove.

  Further, in the present embodiment, the power plug terminals 111 and 112 and the grounding plug terminal 113 have a cylindrical configuration, but may be of a blade type. Further, the power plug terminals 111 and 112 may be formed in different sizes to prevent reverse insertion.

  Next, the state in which the male connector 110 and the female connector 120 are fitted in the present embodiment will be described with reference to FIG. FIG. 9 is a side view through which a part of the male connector 110 shown in FIG. 8 and the female connector 120 corresponding to the male connector 110 are fitted.

When the male connector 110 is fitted to the female connector 120, the power plug terminal 112 (111) is fitted to the power jack terminal 122 (121), and the grounding plug terminal 113 is connected to the grounding jack terminal 123. To fit. Further, when the male connector 110 is engaged with the female connector 120, the detachable pin 114 of the male connector 110 comes into contact with the circular convex portion 182 of the detachable lock 180 provided on the female connector 120 and pushes this portion. When the circular convex portion 182 is pushed, the attachment / detachment lock 180 rotates around the rotation shaft 183 from the state shown by the broken line to the state shown by the solid line, and the claw-like portion 181 of the attachment / detachment lock 180 moves the male connector 110. The flange 116 in the region where the lock hook 117 is formed is fixed. Thereby, the fitting state of the male connector 110 and the female connector 120 can be maintained. In this state, the detachable lock 180 can rotate around the rotation shaft 183, and the male connector 110 can be pulled out of the female connector 120. At this time, the detachable lock 180 returns to the state before the male connector 110 is inserted into the original female connector 120 by the winding spring 184.

  In this state, the power plug terminal 112 (111) of the male connector 110 is fitted to the power jack terminal 122 (121) of the female connector 120, but is connected to the power jack terminal 122 (121). Since the contact point of the control switch 132 (131) is kept open, the power from the power source is not supplied to the power jack terminal 122 (121) and the power plug terminal 112 (111). Not in.

  Matters other than the above are the same as those in the first embodiment.

  In the above description, the case of 400 VDC has been described in detail. However, the male connector, the female connector, and the connector described as the embodiment of the present invention can be used if they are direct current (DC). In particular, in the case of direct current, unlike AC, there is no frequency safe for the human body.

  From the viewpoint of influence on the human body, a voltage of 48 V or less is usually used as the DC voltage. This is because when the voltage is usually 48 V or less, there is almost no influence on the human body due to electric shock. From this, when the voltage exceeds 48 V, the influence on the human body is large. Particularly, a voltage of 200 V or more is dangerous. is there.

  Since the male connector, the female connector, and the connector according to the embodiment of the present invention have a safety-enhanced configuration, the present invention exerts a particularly remarkable effect on a voltage exceeding 48V and further a voltage exceeding 200V. . That is, since the male connector, the female connector and the connector in the present embodiment have improved safety due to a configuration different from the conventional one, the safety is enhanced even for voltages exceeding 48V, and even for voltages exceeding 200V. In particular, it has a remarkable effect.

  As mentioned above, although the form which concerns on implementation of this invention was demonstrated, the said content does not limit the content of invention.

10 Male connector 11 Plug terminal for power (+)
12 Power plug terminal (-)
13 Plug terminal for ground 15 Power cable 20 Female connector 21 Jack terminal for power (+)
22 Jack terminal for power (-)
23 ground jack terminal 31 control switch 32 control switch
40 Information devices such as servers 50 High-voltage power supply
90 junction switch

Claims (13)

In a female connector connected to a male connector for electrically connecting a power source and an electronic device receiving power supply from the power source,
The female connector has a detachable lock for fixing the joint with the male connector, a control switch, and a joining switch,
By fitting the female connector and the male connector, the attachment / detachment lock moves along with the fitting operation of the male connector, and the joint between the male connector and the female connector is fixed,
By pressing the joining switch when the male connector and the female connector are fitted, the contact of the control switch is connected, and power is supplied from the power source to the electronic device via the female connector and the male connector. At the same time, the attachment / detachment lock is fixed by the joining switch .   The female connector according to claim 1, wherein the control switch is a leaf spring-shaped switch made of metal.   The attachment / detachment lock has a claw-like part on one side and a circular convex part on the other side, has a rotation shaft in the center part, and is fixed to the female connector in a rotatable state. By fitting into the female connector, the main body of the male connector pushes the circular convex portion, and when the detachable lock rotates, the claw-shaped portion joins the main body of the male connector, and the male connector The female connector according to claim 1 or 2, wherein a joint between the connector and the female connector is fixed. The male connector is provided with a grounding plug terminal,
The female connector is provided with a grounding jack terminal corresponding to the grounding plug terminal,
4. The device according to claim 1, wherein when the female connector and the male connector are fitted, the grounding plug terminal and the grounding jack terminal are fitted. 5. Female connector.   The female connector according to claim 1, wherein the power supplied from the power source is a direct current.   The female connector according to any one of claims 1 to 5, wherein the voltage of the electric power supplied from the power source is a voltage exceeding 48V. In the power supply unit provided with a plurality of other connectors to be connected to one connector for electrically connecting a power source and an electronic device receiving power supply from the power source,
The other connector has a detachable lock for fixing the joining with the one connector, a control switch, and a joining switch,
By fitting the one connector with the other connector, the attachment / detachment lock moves along with the fitting operation of the one connector, and the joining between the one connector and the other connector is fixed,
By pressing the joining switch in the fitted state of the one connector and the other connector, the contact of the control switch is connected, and the power from the power source is connected through the other connector and the one connector. The power supply unit is characterized in that the attachment / detachment lock is fixed by the joining switch simultaneously with being supplied to the electronic device.   The power supply unit according to claim 7, wherein the control switch is a leaf spring-shaped switch made of metal.   The detachable lock has a claw-shaped part on one side and a circular convex part on the other side, a rotation shaft in the center part, and is fixed to the other connector in a rotatable state. However, when the other connector is inserted into the connector, the main body of the one connector pushes the circular convex portion, and the attachment / detachment lock rotates, so that the claw-shaped portion is attached to the main body of the one connector. The power supply unit according to claim 7 or 8, wherein the power supply unit is joined and the joint between the one connector and the other connector is fixed. The one connector is provided with a grounding plug terminal,
The other connector is provided with a grounding jack terminal corresponding to the grounding plug terminal,
10. The device according to claim 7, wherein when the other connector and the one connector are fitted, the grounding plug terminal and the grounding jack terminal are fitted. The power supply unit described in 1.   The power supply unit according to claim 7, wherein the power supplied from the power source is a direct current.   The power supply unit according to any one of claims 7 to 11, wherein the voltage of the power supplied from the power source is a voltage exceeding 48V.   The power supply unit according to any one of claims 7 to 12, wherein the one connector is a male connector, and the other connector is a female connector.

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