JP2007037287A - Interlock mechanism of connector in moving type apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve an inexpensive interlock for ensuring safety by an arrangement wherein a connector plug can be connected and disconnected only at a test/disconnect position, and movement to an operating position is impossible in a state that the connector plug is not inserted. <P>SOLUTION: In a state that a connector plug 19 is not inserted, a protective cover 33 is held in a laterally elongated state at a lower position of a U-shaped baffle 34 and even if a moving type apparatus 15 is tried to be moved to an operating position, the protective cover 33 abutts against the U-shaped baffle 34 and the moving type apparatus 15 cannot be moved. In a state that the connector plug 19 is inserted, the protective cover 33 is mounted on the upper side face of the connector plug 19 by its own weight. Since the protective cover 33 is located above the U-shaped baffle 34 while being spaced apart therefrom in this state, the protective cover 33 does not abutt against the U-shaped baffle 34 even if the moving type apparatus 15 is moved toward the operating position, and the moving type apparatus 15 can be moved to the operating position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interlock mechanism for a connector in a mobile device such as a VCB (high pressure vacuum circuit breaker) or a VT (device) carriage housed in a switchboard (switchgear).

FIG. 2 shows a side view of a switchboard in which a conventional mobile device is housed, and FIGS. 3A and 3B show diagrams of an interlock mechanism of a connector in the conventional mobile device, which will be described. .
As shown in FIG. 2, the switchboard 10 has a vertical rectangular parallelepiped shape, and a ground metal partition plate 11 is horizontally disposed inside and divided into unit chambers 12. A mobile device 15 is accommodated in the chamber so as to be movable in the front-rear direction indicated by an arrow Y <b> 1 via wheels 16.

The movable device 15 has a handle 17 fixed to the front, and a person grips the handle 17 so that the movable device 15 can move in the front-rear direction indicated by the arrow Y1. When the mobile device 15 is tested, it is pulled out to the test / disconnection position P1 in the right pulling direction indicated by the arrow Y1.
At the test / disconnection position P1, since the primary side of the mobile device 15 is in a disconnected state, the connector jack 18 which is the secondary side is also in a disconnected state. Therefore, the connector plug 19 inserted in the connector jack 18 can be safely inserted and removed.

On the other hand, since the mobile device 15 is housed in a predetermined position in the unit room of the switchboard 10 and is connected to the power source, the connector jack 18 is supplied with power. is there. In order to prevent this insertion / removal, the movable device 15 is provided with a connector interlock mechanism.
As shown in FIG. 3, the interlock mechanism includes a frame-shaped slide plate 21 that is slightly larger than the rectangular connector plug 19, and a baffle plate 22 disposed on the floor surface of the unit chamber. Has been.

The slide plate 21 is suspended by a spring 24 on a connector portion of the movable device 15 and is regulated and arranged by a guide portion 21c formed by fitting a pin 21b into an elongated through groove 21a in a vertical frame. It is possible to move freely along the guide portion 21c in the vertical direction indicated by the directional arrow Y2.
Further, on the opening side of the vertical frame of the slide plate 21, a concave portion 21 d having a size slightly larger than the convex portions 19 a provided on both sides of the connector plug 19 is provided at the opposing position. Further, convex hook portions 19b are provided on the top and bottom of the slide plate 21, and a plurality of pins 19c for connecting other circuit devices are provided on the facing surface on the insertion side to the connector jack 18. .

The baffle plate 22 has a rectangular shape having a size higher than the height when the slide plate 21 is lowered to a position where the concave portion 21d matches the convex portion 19a, and the baffle plate 22 extends from the end of the floor surface of the switchboard 10 to the operation position. It is arranged along the movement path.
Therefore, as shown in FIG. 3B, the slide plate 21 can slide downward as indicated by the arrow Y3 so that the concave portion 21d fits the convex portion 19a at the test / disconnection position P1 where the baffle plate 22 does not exist. Therefore, the connector plug 19 can be inserted and removed.

On the other hand, as shown in FIG. 3A, at the position where the baffle plate 22 exists, it is impossible to slide the concave portion 21d so that it fits the convex portion 19a, and therefore the connector plug 19 cannot be inserted or removed. Accordingly, safety is ensured by preventing the connector plug 19 from being removed during the movement to the operation position or at the operation position.
As an interlock mechanism for a connector in this type of conventional mobile device, there is one disclosed in Patent Document 1, for example.
Japanese Patent Laid-Open No. 9-74626

  However, in the connector interlock mechanism in the conventional mobile device, even if the connector plug 19 is forgotten to be inserted into the mobile device 15 at the test / disconnection position P1, the slide plate 21 is raised by the force of the spring 24. Therefore, even if the movable device 15 is moved from the test / disconnection position P1 to the operation position in this state, the slide plate 21 does not hit the baffle plate 22 and can be moved to the operation position. In this case, since the mobile device 15 is connected to the high-voltage power source and 100V of electricity is supplied to the exposed connector jack 18, a person touches it to get an electric shock, or some conductor makes contact and short-circuits. There is a problem with danger such as causing an accident.

In addition, although an interlock mechanism using a special connector other than those described above can be considered, there is a problem that the cost increases.
The present invention has been made in view of such problems, and the connector plug can be inserted / removed only at the test / disconnection position. When the connector plug is not inserted, it is impossible to move to the operation position. It is an object of the present invention to provide a connector interlock mechanism in a mobile device that can realize an interlock to be secured at a low cost.

  In order to achieve the above object, a connector interlock mechanism in a mobile device according to claim 1 of the present invention is housed in a switchboard so as to be freely movable between an operation position and a test / disconnection position, and a connector plug is provided. In the interlock mechanism of the connector in the mobile device having a connector jack to be inserted, the substrate having a convex portion protruding downward on the front surface of the mobile device, and the connector jack fixed to the convex portion, A baffle plate that is formed along a movement path of the mobile device from the front end of the switchboard to the operation position, having a side groove shape having a movable width where the convex portion to which the connector jack is fixed is movable, When the connector plug is not inserted, the connector jack is covered and held at a height that contacts the baffle plate. In grayed the inserted state, characterized in that a protective cover is placed in a position that does not contact with the baffle plate.

  According to this configuration, when the connector plug is not inserted, the protective cover covers the connector jack and is held at a height position where the protective cover abuts against the baffle plate. The cover cannot be moved by hitting the baffle. When the connector plug is inserted, the protective cover is placed on the upper side of the connector plug, which is higher than the baffle plate, so that the movable device can be moved to the operating position without the protective cover hitting the baffle plate. . Therefore, the movement of the mobile device up to the operating position with the connector plug not inserted as in the prior art results in the mobile device being connected to the high voltage power source and the exposed connector jack being supplied with power. It is possible to avoid the risk of electric shock due to the occurrence of a short circuit accident due to some conductor contact. Further, since the substrate, the protective cover, and the U-shaped baffle can be configured by combining inexpensive substrates as main components, the entire interlock mechanism can be configured at low cost.

According to a second aspect of the present invention, there is provided the connector interlock mechanism in the mobile device according to the first aspect, wherein the protective cover is in a detached state of the connector plug at the test / disconnection position. It returns to the position which covers a connector jack, It is characterized by the above-mentioned.
According to this configuration, since the protective cover is in the connector plug removed state at the test / disconnect position and automatically returns to the position covering the connector jack, safety in the connector plug removed state and prevention of damage to the connector pins are further secured. can do.

According to a third aspect of the present invention, there is provided the connector interlock mechanism in the mobile device according to the first or second aspect, wherein, in the inserted state of the connector plug, the distance between both ends of the connector plug and the side surface of the baffle plate is The dimensions are such that human fingers cannot enter.
According to this configuration, even if a person tries to pull out the connector plug during the movement of the mobile device, it is impossible to pull out without inserting a finger, and it is possible to secure an interlock that cannot be attached / detached during the movement. Can do.

  As described above, according to the present invention, the connector plug can be inserted / removed only at the test / disconnection position, and when the connector plug is not inserted, it is impossible to move to the operation position, and the interlock that ensures safety is inexpensive. There is an effect that can be realized.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, parts corresponding to each other in all the drawings in this specification are denoted by the same reference numerals, and description of the overlapping parts will be omitted as appropriate.
FIG. 1 shows an interlock mechanism of a connector in a mobile device according to an embodiment of the present invention, (a) is a front view showing a state when the connector is not inserted, (b) is a side view of (a), (C) is a front view which shows the state at the time of connector insertion, (d) is a side view of (c).

  The interlock mechanism of the present embodiment is attached to the mobile device 15 housed in the unit chamber 12 of the switchboard 10 shown in FIG. 2 and protrudes downward fixed to the front surface of the mobile device 15. A front panel 31 having a convex portion, to which the connector jack 18 is fixed, and a rectangular protection attached to the upper right end portion of the front panel 31 by a single pin 32 so as to be rotatable by a predetermined angle. A U-side groove shape that is slightly wider than the cover 33 and the convex portion of the front panel 31, and is arranged along the movement path of the mobile device 15 from this end to the operation position on the floor surface of the unit chamber 12. A character-shaped baffle plate 34 is provided.

  As shown in FIGS. 1 (a) and 1 (b), the protective cover 33 covers the connector jack 18 from the front and the longitudinal side thereof is parallel to the floor surface and has a U-shaped obstruction when the connector plug 19 is not inserted. It becomes a horizontally long state arrange | positioned in the downward position of the board 34. FIG. In this horizontally long holding state, the protective cover 33 is positioned below the U-shaped baffle plate 34. Therefore, even if the mobile device 15 is moved to the operating position, the protective cover 33 remains in the U-shaped baffle. It cannot be moved by hitting the plate 34.

  Further, as shown in FIGS. 5C and 5D, the protective cover 33 is in a vertically long state in which the short side is placed on the upper side surface of the connector plug 19 when the connector plug 19 is inserted into the connector jack 18. It becomes. In this vertically long holding state, the protective cover 33 is positioned above the U-shaped baffle 34, so that the protective cover 33 does not hit the U-shaped baffle 34 and moves the movable device 15 to the operating position. be able to.

  The protective cover 33 is rotated to the right by the hand when the connector plug 19 is inserted into the connector jack 18, but this rotatable angle is 90 degrees or less, and the long side is on the floor surface. However, when the hand is released in this state and the connector plug 19 is not inserted, it returns to its horizontally long state shown in (a) and (b) under its own weight. If it is inserted, it is held in the vertically long state shown in (c) and (d). In the present embodiment, the protective cover 33 is returned by its own weight, but may be returned by elastic means such as a spring.

Further, as shown in (c), in the inserted state of the connector plug 19, the gap G between both ends of the connector plug 19 and the side surface of the U-shaped baffle plate 34 is set to a dimension that does not allow human fingers to enter.
When a test or the like of the mobile device 15 incorporating the interlock mechanism having such a configuration is performed, the test is performed until the test / disconnection position P1 shown in FIG.

At the test / disconnection position P1, since the primary side of the mobile device 15 is disconnected from the power source, the connector jack 18 which is the secondary side is also disconnected. In this blocked state, the connector plug 19 inserted into the connector jack 18 can be safely removed.
In the state where the connector plug 19 is removed, the protective cover 33 is held in a horizontally long position below the U-shaped baffle plate 34. Therefore, even if the mobile device 15 is moved to the operating position, The protective cover 33 cannot be moved by hitting the U-shaped baffle plate 34.

On the other hand, when the mobile device 15 is housed in the operating position, the protective cover 33 is rotated to the right to expose the connector jack 18, the hook portion 19 b is gripped, and the connector plug 19 is inserted into the connector jack 18. Thereafter, when the protective cover 33 is released, the protective cover 33 is placed on the upper side surface of the connector plug 19 by its own weight and is held in a vertically long state.
In this vertically long holding state, the protective cover 33 is located above the U-shaped baffle 34, so that even if the movable device 15 is moved toward the operating position, the protective cover 33 is still in the U-shaped baffle. The movable device 15 can be moved to the operating position without hitting 34.

  As described above, according to the connector interlock mechanism in the mobile device of the present embodiment, the connector plug 19 can be inserted into and removed from the mobile device 15 at the test / disconnection position P1. On the other hand, even if the connector plug 19 is forgotten to be inserted, the protective cover 33 is automatically held at the lower position of the U-shaped baffle 34 by its own weight, so that even if the mobile device 15 is moved to the operating position, The protective cover 33 cannot be moved by hitting the U-shaped baffle plate 34.

Accordingly, the movable device 15 can be moved to the operating position even when the connector plug 19 is not inserted as in the conventional case, and the exposed connector jack 18 is supplied with electric power. It is possible to avoid a danger such as a short circuit accident due to the contact of the.
Further, in the inserted state of the connector plug 19, the distance G between the both ends of the connector plug 19 and the side surface of the U-shaped baffle 34 is set to a dimension that does not allow human fingers to enter. Even if an attempt is made to pull out the connector plug 19, it is impossible to pull out without inserting a finger, and it is possible to secure an interlock that prevents the connector from being attached and detached during the movement.

Furthermore, the interlock mechanism can be configured by combining the front panel 31, the protective cover 33, and the U-shaped baffle plate 34, which can be made of an inexpensive material as a main component, so that the entire interlock mechanism can be made inexpensive. Can be configured.
Therefore, the connector plug 19 can be inserted / removed only at the test / disconnection position P1, and it is possible to realize an interlock that ensures safety by making it impossible to move to the operating position when the connector plug 19 is not inserted. .

The interlock mechanism of the connector in the mobile device which concerns on embodiment of this invention is shown, (a) is a front view which shows the state at the time of connector non-insertion, (b) is a side view of (a), (c) is The front view which shows the state at the time of connector insertion, (d) is a side view of (c). It is a side view of the switchboard in which the conventional mobile equipment was stored. It is a figure of the interlock mechanism of the connector in the conventional mobile equipment.

Explanation of symbols

10 Switchboard (switchgear)
DESCRIPTION OF SYMBOLS 11 Partition plate 12 Unit room 15 Mobile equipment 16 Wheel 17 Handle 18 Connector jack 19 Connector plug 19a Convex part 19b Hook part 19c Pin 21 Slide board 21a Through groove 21b Pin 21c Guide part 24 Spring 31 Front panel 32 Pin 33 Protective cover 34 U-shaped baffle

Claims (3)

In a connector interlock mechanism in a mobile device having a connector jack into which a connector plug is inserted, which is accommodated in the switchboard so as to be freely movable between an operation position and a test / disconnection position.
A substrate having a protrusion protruding downward on the front of the mobile device, and the connector jack fixed to the protrusion; and
A baffle plate that is formed along a movement path of the mobile device from the front end of the switchboard to the operation position, having a side groove shape having a width in which the convex portion to which the connector jack is fixed is movable,
It is plate-shaped and is held at a height position that covers the connector jack and abuts against the baffle plate when the connector plug is not inserted, and that does not abut against the baffle plate when the connector plug is inserted. An interlock mechanism for a connector in a mobile device, comprising: a protective cover placed on the mobile device. 2. The connector interface according to claim 1, wherein the protective cover automatically returns to a position covering the connector jack when the connector plug is removed at the test / disconnection position. Lock mechanism. 3. The movable type according to claim 1, wherein, in the inserted state of the connector plug, a distance between both ends of the connector plug and a side surface of the baffle plate is set so that a human finger does not enter. Interlock mechanism for connectors in equipment.

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