CN104167314B - Connect up pipe connection - Google Patents

Abstract

Wiring pipe connection according to the present invention has the contact, breaker and limiting unit of primary side.Contact is connect with the conductive component of the installation pipe for the conductive component for having stored distribution.Breaker is connected between contact and the circuit of secondary side, by the opening operation of the lever exposed on the surface of device body, is made between primary side and secondary side electrically breaking.Limiting unit, which is loaded and unloaded, to be mounted freely on device body, and the operation of lever is limited in the state of being installed on device body.

Description

Wiring pipe connection device

technical field

The present invention generally relates to a wiring duct connection device, and more specifically, relates to a wiring duct connection device including a circuit breaker that electrically disconnects between a primary side and a secondary side.

Background technique

For example, Document 1 (Japanese Laid-Open Patent Publication No. 2012-114000 ) discloses a plug for wiring ducts detachably attached to a wiring duct. Wiring ducts are installed, for example, in buildings such as data centers that use a plurality of electrical equipment. Electric power is supplied to server racks and the like through wiring ducts and plugs from wiring ducts installed on the ceiling of the data center. The wiring duct plug of Document 1 accommodates a circuit breaker for disconnecting power supply to the secondary side in a main body.

In the conduit plug disclosed in Document 1, since the handle of the circuit breaker is exposed on the surface of the main body, there is a possibility that an operator touches the handle of the circuit breaker by mistake, thereby disconnecting power supply to the secondary side.

Contents of the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wiring duct connection device that makes it difficult to disconnect the handle by mistake or intention.

A wiring duct connection device according to a first aspect of the present invention includes a primary-side contact, a circuit breaker, and a restricting portion. The contact is connected to the conductive member of the wiring duct in which the conductive member for power distribution is accommodated. The circuit breaker is connected between the contact and the secondary side circuit, and electrically disconnects the primary side and the secondary side by an opening operation of an operating handle exposed on the surface of the device body. The restricting portion is detachably mounted on the device body, and restricts the operation of the operating handle in a state of being mounted on the device body.

In the wiring duct connection device according to a second aspect of the present invention, in the first aspect, the restricting portion restricts the operation of the operating handle by covering the operating handle.

In the wiring duct connection device according to a third aspect of the present invention, in the first aspect, the restricting portion regulates the movement of the operating handle in a state where the operating handle is switched to the ON position, thereby restricting operation of the handle.

In any one of the first to third aspects of the wiring duct connection device according to a fourth aspect of the present invention, the restricting portion is formed of a light-transmitting material.

As the wiring duct connection device according to a fifth aspect of the present invention, in any one of the first to third aspects, the restricting portion is formed of an opaque material.

In any one of the first to fifth aspects, the wiring duct connection device according to a sixth aspect of the present invention further includes: a holding portion that holds a state in which the operation of the operating handle is restricted by the restriction portion, so that The holding part releases the holding of the restricting part by a predetermined operation.

As the wiring duct connection device according to a seventh aspect of the present invention, in the sixth aspect, the holding portion is a lock device that releases the holding state of the restricting portion by a rotation operation of a key.

Description of drawings

FIG. 1( a ) is a perspective view of a state in which a wiring duct connection device according to an embodiment is installed in a wiring duct, and FIG. 1( b ) is an enlarged view of a main part.

FIG. 2( a ) is an enlarged view of main parts of the right side surface of the wiring duct connection device according to the embodiment, and FIG. 2( b ) and FIG. 2( c ) are perspective views of main parts.

Fig. 3 is a perspective view showing another form of the wiring duct connection device according to the embodiment.

Fig. 4 is an explanatory diagram of a wiring duct system of the wiring duct connection device according to the embodiment.

Fig. 5 is a perspective view showing still another form of the wiring duct connection device of the embodiment.

Detailed ways

Hereinafter, an embodiment in which the technical idea of the present invention is applied to a wiring duct connection device used in a single-phase three-wire wiring duct will be described with reference to the drawings. In addition, the wiring pipe is not limited to single-phase three-wire wiring, and may be a three-phase three-wire power distribution system, a three-phase four-wire power distribution system, or the like.

Embodiments of the wiring duct connection device will be described based on FIGS. 1 to 4 . In addition, in the following description, the orientation shown in FIG. 1( a ) is used as a reference to define the directions of up, down, left, and right, and the left and right directions in FIG. 2( a ) are described as the front and rear directions. The defined directions do not limit the directions in actual use to the above directions.

The wiring duct connection device 1 includes contacts 20 a to 20 c , circuit breakers 5 and 6 , and a cover 7 as shown in FIGS. 1 and 2( a ). Furthermore, the wiring duct connection device 1 includes a device main body 8 that accommodates the contacts 20 a to 20 c and the circuit breakers 5 and 6 , and an operating handle 3 exposed on the surface of the device main body 8 .

The contact 20 a is connected to the conductor 18 a of the wiring duct 17 . Likewise, contact 20b is connected to conductor 18b, and contact 20c is connected to conductor 18c.

The circuit breakers 5 and 6 have an abnormal breaking function of automatically breaking the power supply from the primary side when an abnormal current flows through the load on the secondary side. The circuit breaker 5 is connected between the contacts 20a, 20b and the circuit on the secondary side, and can be connected between the primary side and the secondary side (contacts 20a, 20b, 20b and the circuit on the secondary side) is electrically disconnected or connected.

The circuit breaker 6 is connected between the contacts 20b, 20c and the circuit on the secondary side, and can be connected between the primary side and the secondary side (contacts 20b, 20c, 20c and the circuit on the secondary side) is electrically disconnected or connected.

The cover 7 is detachably attached to the device main body 8 , and controls the operation of the operating levers 3 and 4 while being attached to the device main body 8 . In addition, the primary side is the power supply side, and the secondary side is the load side.

As shown in FIGS. 1 and 2 , the wiring duct 17 connected to the wiring duct connection device 1 will be described.

The wiring duct 17 has a long rectangular cylindrical shape as shown in FIGS. 1 and 2 , and a groove 19 is formed on the lower surface of the wiring duct 17 opening in the entire longitudinal direction. Inside the wiring duct 17, three conductors 18a-18c are arrange|positioned along the longitudinal direction.

The conductors 18a to 18c are connected to a single-phase three-wire AC100/200V power supply. The conductor 18a corresponds to the neutral line of the single-phase three-wire wiring, and is provided on the top surface in the wiring duct 17 . The conductors 18b and 18c correspond to voltage lines, and are provided on both sides of the wiring duct 17, respectively. In addition, the voltage of a power supply is not limited to AC100/200V, For example, appropriate voltage, such as AC240/480V, may be sufficient.

The wiring duct connection device 1 includes a device body 8 composed of a synthetic resin body 9 and a terminal cover 10 . The main body 9 is formed in a vertically long box shape, and the terminal cover 10 is formed in an angular cylindrical shape with an open upper surface.

On the upper surface of the main body 9, the insertion part 2 inserted into the groove 19 of the wiring duct 17 is provided. As shown in FIGS.

A concave portion 2A is provided on the upper surface of the insertion portion 2, and a metal contact 20a is provided in the concave portion 2A. A hole 2B is provided on one surface (front surface) of the insertion portion 2 , and a metal contact 20 b is provided so that it can move forward and backward through the hole 2B. Similarly, a hole 2C is provided on the other surface (back surface) of the insertion portion 2, and a metal contact 20c is provided so that it can move forward and backward through the hole 2C.

On the upper part of both side surfaces of the main body 9, control levers 15a, 16a are provided. The levers 15a, 16a are rotatably provided, and when the levers 15a, 16a face forward together, the contact 20b retracts into the hole 2B, and the contact 20c retracts into the hole 2C. On the other hand, when the lever 15a is rotated to the left and the lever 16a is rotated to the right, the contact 20b protrudes from the hole 2B and the contact 20c protrudes from the hole 2C.

The rectangular plate-shaped fixing plate 15b is connected to the rotation shaft of the control lever 15a, and the rectangular plate-shaped fixing plate 16b is connected to the rotation axis of the control lever 16a. The width dimension of the fixing plates 15 b and 16 b is formed smaller than the width dimension of the groove 19 , and the length dimension of the fixing plates 15 b and 16 b is formed larger than the width dimension of the groove 19 .

The fixed plate 15b rotates together with the lever 15a, and when the lever 15a is rotated to the forward position, the longitudinal direction of the fixed plate 15b becomes parallel to the longitudinal direction of the insertion part 2 . Similarly, the fixed plate 16b rotates together with the lever 16a, and when the lever 16a is rotated to the forward position, the longitudinal direction of the fixed plate 16b becomes parallel to the longitudinal direction of the insertion part 2 .

Here, a method for connecting the main body 9 and the wiring duct 17 will be described. With the levers 15a and 16a facing forward together, when the insertion part 2 is inserted into the groove 19 of the wiring duct 17 to the position where the upper part of the main body 9 contacts the side surface of the wiring duct 17, the contact 20a contacts the conductor 18a.

In the state where the contact 20a is in contact with the conductor 18a, the lever 15a is rotated leftward from the front, and the lever 16a is rotated rightward from the front. By rotating the control levers 15a and 16a, the contact 20b protruding outward from the hole 2B contacts the conductor 18b for conduction, and the contact 20c protruding outward from the hole 2C contacts the conductor 18c for conduction.

In addition, the fixing plate 15b rotates together with the lever 15a, and is engaged with the inner peripheral portion of the groove 19 of the wiring duct 17 . Similarly, the fixing plate 16b rotates together with the lever 16a, and engages with the inner peripheral portion of the groove 19 of the wiring duct 17 . When the fixing plates 15b, 16b are engaged with the peripheral portion of the groove 19 of the wiring duct 17, the device main body 8 and the wiring duct 17 are locked.

On the front of the main body 9, circuit breakers 5, 6 and an energization lamp 11 that lights up when the primary sides of the circuit breakers 5, 6 are energized are provided.

The circuit breaker 5 includes an operating handle 3 , and the circuit breaker 6 includes an operating handle 4 . The primary side terminals of the circuit breaker 5 are connected to the contacts 20 a and 20 b via, for example, covered wires (not shown), and the power supply cables 13 are connected to the secondary side terminals of the circuit breaker 5 . The primary side terminals of the circuit breaker 6 are connected to the contacts 20 b and 20 c via, for example, covered wires (not shown), and the power supply cables 13 are connected to the secondary side terminals of the circuit breaker 6 .

The circuit breaker 5 electrically connects the primary side terminal and the secondary side terminal when the operating handle 3 is switched to the ON position (for example, the upper side), and when the operating handle 3 is switched to the OFF position (for example, the lower side). ) to electrically disconnect the primary side terminal and the secondary side terminal. Similarly, the circuit breaker 6 electrically disconnects or connects the primary side terminal and the secondary side terminal of the circuit breaker 6 according to the operation of the operating handle 4 .

In addition, the circuit breakers 5 and 6 have an abnormal disconnection function, and the circuit breaker 5 automatically disconnects the power supply from the primary side when an abnormal current flows through the load on the secondary side even if the operating handle 3 is in the ON position. Similarly, even when the operating handle 4 is in the ON position, the circuit breaker 6 automatically cuts off the power supply from the primary side when an abnormal current flows through the load on the secondary side. In the present embodiment, for example, the circuit breaker 5 is for AC100V and the circuit breaker 6 is for AC200V. A circuit for AC100V is connected to the circuit breaker 5 and a circuit for AC200V is connected to the circuit breaker 6 .

In addition, the circuit breakers 5 and 6 do not need to have an abnormal disconnection function, as long as the switching operation of the operating handles 3 and 4 electrically disconnects or connects the primary side terminal and the secondary side terminal.

The terminal cover 10 is detachably attached to the lower portion of the main body 9 , and covers the lower portion of the main body 9 and the secondary-side terminals of the circuit breakers 5 and 6 while being attached to the lower portion of the main body 9 . On the lower surface of the terminal cover 10 , two inlets (not shown) for introducing the power supply cables 13 and cable clamps 12 for holding the sheath of the power supply cables 13 are respectively provided.

The power supply cable 13 is drawn into the terminal cover 10 through the inlet, and connected to the secondary-side terminals of the circuit breakers 5 and 6 . The outer sheath of the power supply cable 13 is held by the cable clamp 12 in a state where the terminal cover 10 is coupled to the main body 9 .

In addition, in the present embodiment, the main body 9 is provided with two circuit breakers 5 and 6, but the number of circuit breakers is not limited to two, and one or more circuit breakers may be provided. In addition, the main body 9 and the terminal cover 10 are not limited to being formed of synthetic resin, but may be formed of appropriate materials such as metal, for example.

The cover 7 is formed of a translucent synthetic resin (for example, acrylic resin, polycarbonate resin, etc.). The cover 7 is formed in a box shape with an open rear, and has a main portion 7a and side portions 7b, 7c. The main part 7a is curved along the surface of the main body 9, and covers the front surface and a part of both sides of the main body 9. As shown in FIG. The side parts 7 b and 7 c respectively protrude rearward from the upper side and the lower side of the main part 7 a , and the rear ends of the side parts 7 b and 7 c are in contact with the surface of the main body 9 .

The depth dimension of the cover 7 covering the front portion of the main body 9 is formed to be larger than the distance from the front ends of the operating handles 3 and 4 to the surface of the main body 9 . Therefore, if the cover 7 is provided on the front of the main body 9 , the cover 7 covers the operating handles 3 , 4 . In addition, the cover 7 is not limited to being comprised by the main part 7a and the side parts 7b, 7c, The appropriate shape which can cover the operation handle 3, 4 may be sufficient.

On one side edge (left side edge) of cover 7, for example, a hollow cylindrical tube portion (not shown) is provided, and a shaft (not shown) is provided on one side (left side) of main body 9. ). And the main part 7a is rotatably supported around the main body 9 by inserting a shaft through a cylindrical part.

On the other side edge (right edge) of the cover 7, a fixing piece 14b is provided. The fixing piece 14b is formed in the shape of a rectangular plate protruding rightward from the right edge of the cover 7 . A hole (not shown) through which the screw 14c is inserted is provided in the center part of the fixing piece 14b. On the main body 9, the plate-shaped fixing piece 14a is provided so that it may overlap with the fixing piece 14b of the cover 7. As shown in FIG. A screw hole (not shown) is provided in the center part of the fixing piece 14a.

Rotate the cover 7 around the axis of the left edge of the cover 7 so that the side parts 7b, 7c abut against the surface of the main body 9, insert the screw 14c through the hole of the fixing piece 14b, and tighten the screw and fix it to the fixing piece 14a , so that the cover 7 is locked on the front of the main body 9 to cover the operating handles 3 and 4 .

In addition, the restricting portion is not limited to the cover 7 covering the operating handles 3, 4, and may be a member that prevents the operating handles 3, 4 from moving from the state switched to the ON position. For example, it is also possible to install a rectangular plate-shaped restricting portion formed in contact with the lower surfaces of the operating handles 3, 4 on the front of the main body 9, and press the restricting portions against the lower surfaces of the operating handles 3, 4 so that the operating handles 3, 4 4 does not move from the on position to the off position, thereby limiting the operation of the operating handles 3,4.

When the screw 14c is removed, since the cover 7 can be rotated to expose the front surface of the main body 9, the operation handles 3 and 4 can be operated.

In addition, the main body 9 may include a lock device 21 that holds the cover 7 in a state covering the main body 9 or releases the holding by a predetermined operation.

The lock device 21 is constituted by, for example, a cylinder lock, and includes a lock case 21 a, a cylinder (cylinder) 21 b, and a deadbolt (not shown). The lock case 21a is integrally provided with the main body 9, and the lock cylinder 21b and the lock knob are accommodated inside the lock case 21a. On the lock case 21a, a recess (not shown) into which a fixing piece 7d provided at an end of the cover 7 is inserted in a state in which the cover 7 is closed is provided. The key cylinder 21b is rotated by turning a proper key (not shown) inserted through the lock hole.

When the lock cylinder 21b rotates in the locking direction, the lock knob slides to a position where the fixing piece 7d inserted into the recess is locked, thereby locking the cover 7 . When the lock cylinder 21b rotates in the unlocking direction, the lock knob slides to a position separated from the fixing piece 7d, and the lock of the cover 7 is released. The lock device 21 holds or releases the cover 7 in the state of covering the operation handles 3 and 4 according to the rotation operation of the key.

In addition, the lock device 21 is not limited to a cylinder lock, and may be an appropriate lock unlocked by a predetermined release method. For example, the lock device 21 may be an electronic lock or the like that can be unlocked by biometric authentication such as a password, a dedicated key card, or a fingerprint. In addition, the lock device 21 may be a structure that holds or releases the cover 7 in the state of covering the operating handles 3 and 4, and may be, for example, a cover 7 provided with a hole and a main body 9 provided with a hole. Lock the latch to lock the structure.

In addition, the holding part is not limited to the lock device, and the cover 7 in the state of covering the operation handles 3, 4 may be held or held, for example, by using a screw that adds a special groove or a hole that cannot be rotated with a normal tool. Release the held structure. For example, the screw may be a screw (anti-theft screw) in which a triangular hole, a square hole, a hexagonal hole, a hexagonal star-shaped hole, a plurality of holes, or three grooves, etc. are provided on the head of the screw.

In addition, the cover 7 is not limited to being formed of a transparent material, and may be formed of an opaque material (for example, ABS resin, etc.) as shown in FIG. 3 . The cover 7 made of an opaque material covers the operating handles 3 and 4 so that the presence of the operating handles 3 and 4 cannot be recognized just by looking at the appearance of the device main body 8, so that the operating handles 3 and 4 are difficult to be operated intentionally.

In addition, the left edge of the cover 7 is not limited to being supported by the main body 9 via a shaft, but may be attached to the main body 9 by an appropriate method. For example, a convex portion extending from the surface of the main portion 7a to the direction of the main body 9 may also be set on the left edge of the main portion 7a, and a concave portion corresponding to the convex portion may be provided on the left side surface of the main body 9 so that the convex portion and the concave portion fit so that the left edge of the cover 7 is mounted on the main body 9 . In addition, for example, fixing pieces 14a may be respectively provided on both sides of the main body 9, and fixing pieces 14b may be respectively provided on both side edges of the cover 7, and the cover 7 is mounted on the main body 9 by two screws 14c.

Here, the state of use in the case where the wiring duct system using the wiring duct connection device 1 of this embodiment is installed in a data center will be described using FIG. 4 .

The wiring duct 17 is suspended from the ceiling 23 by the elongated hanger 24 , and the wiring duct connection device 1 is connected to the upper side of the server cabinet 22 to be powered. The wiring duct connection device 1 is connected to the server rack 22 via the power supply cable 13 , and supplies power to the server rack 22 from the wiring duct 17 .

Since the wiring duct connection device 1 has a restricting portion, it is difficult to be accidentally or intentionally operated, and it is difficult to disconnect the power supply to the load. In addition, in order to operate the handle, a screwdriver, a special tool, etc. are required, and it takes time until the handle is operated. Since surveillance is usually performed by security cameras in a data center, it takes time until the manipulation handle is operated, so it is difficult to intentionally operate the manipulation handle.

In addition, in a data center, users of servers often differ for each server rack. Therefore, if the wiring duct connection device 1 provided with the lock device 21 capable of opening the cover 7 with a different key for each server cabinet 22 is used, the cover 7 cannot be opened with another key, thereby improving safety.

In this case, the method of releasing the cover 7 may be different for each wiring duct connecting device 1 , for example, the unlocking method of the lock or the type of antitheft screw may be changed. Thus, the operating handle is difficult to be operated accidentally or intentionally.

As described above, the wiring duct connection device 1 of the present embodiment includes the primary-side contacts 20 a to 20 c, the circuit breakers 5 and 6 , and the cover 7 . The contacts 20a-20c are connected to the conductors 18a-18c of the wiring duct 17 which accommodates the conductor for power distribution. The circuit breakers 5, 6 are connected between the contacts 20a-20c and the secondary side circuit, and through the disconnection operation of the operating handles 3, 4 exposed on the surface of the device body 8, the primary side and the secondary side are connected. Electrically open circuit. The cover 7 is detachably attached to the device main body 8 , and controls the operation of the operating levers 3 and 4 while being attached to the device main body 8 .

Since the operation of the operating handles 3, 4 of the circuit breakers 5, 6 is restricted by the cover 7 attached to the device main body 8, the operating handles 3, 4 are hardly operated accidentally or intentionally.

The cover 7 can also restrict the operation of the operating handles 3 and 4 by covering the operating handles 3 and 4 . Since the operating handles 3 and 4 are covered by the cover 7 and the operating handles 3 and 4 cannot be touched without opening the cover 7, the operating handles 3 and 4 are difficult to be accidentally or intentionally operated.

The restricting part may restrict the movement of the operating handles 3 and 4 in a state where the operating handles 3 and 4 are switched to the ON position, thereby restricting the operation of the operating handles 3 and 4 . The movement of the operating handles 3, 4 is restricted by the restricting part in the state of the ON position, so that the operating handles 3, 4 cannot be moved unless the restricting part is detached from the device body 8, so the operating handles 3, 4 are difficult to be mistaken or damaged. Deliberate operation.

The cover 7 may also be formed of a light-transmitting material. Therefore, the state of the operating handles 3 and 4 can be seen in a state where the cover 7 is attached to the device main body 8 .

The cover 7 may also be formed of an opaque material. Since the cover 7 is made of an opaque material, the presence of the operating handles 3 and 4 is hard to be recognized from the appearance when the cover 7 is attached to the device body 8 , so that the operating handles 3 and 4 are difficult to be operated intentionally.

A lock device 21 for holding a state in which the cover 7 restricts the operation of the operating handles 3 and 4 may be further provided, and the lock device 21 releases the hold of the cover 7 by a predetermined operation. Since the cover 7 cannot be opened unless a predetermined operation is performed to release the hold of the cover 7 and the main body 9, the operating handles 3 and 4 are hardly operated accidentally or intentionally.

The holding portion may be a lock device 21 that releases the holding state of the cover 7 by a key rotation operation.

Claims (9)

1. A wiring pipe connection device, characterized in that it has: The contact on the primary side is connected to the conductive member of the wiring duct that accommodates the conductive member for power distribution; a circuit breaker connected between the contacts and the circuit on the secondary side, electrically disconnecting the primary side and the secondary side by the disconnection operation of the operating handle exposed on the surface of the device body; and a restricting portion mounted on the device body, restricting the operation of the operating handle in a state mounted on the device body, A shaft is provided on one side of the device body, A hollow cylindrical tube part is provided on one side edge of the restricting part, The restricting portion is rotatably supported by the device main body by inserting the shaft through the cylindrical portion, the restricting portion restricts the operation of the operating handle by covering the operating handle, The restriction has: a main part curved along the surface of the device body and covering the surface of the device body and a part of both sides; and A pair of side parts, from the two sides of the main part in the direction parallel to the surface of the device body and intersecting with the direction in which the two sides of the device body are arranged, toward the direction approaching the surface of the device body protruding, and the front end abuts against the surface of the device body. 2. The wiring duct connection device according to claim 1, characterized in that: The restricting portion is formed of a light-transmitting material. 3. The wiring duct connection device according to claim 1, characterized in that: The restricting portion is formed of an opaque material. 4. The wiring duct connection device according to claim 1, characterized in that: The wiring duct connection device further includes a holding portion that holds a state in which the restricting portion restricts the operation of the operating handle, The holding portion releases holding of the restricting portion by a predetermined operation. 5. The wiring duct connection device according to claim 4, characterized in that: The holding portion is a lock device that releases the holding state of the restricting portion by rotating a key. 6. The wiring duct connection device according to claim 2, characterized in that: The wiring duct connection device further includes a holding portion that holds a state in which the restricting portion restricts the operation of the operating handle, The holding portion releases holding of the restricting portion by a predetermined operation. 7. The wiring duct connection device according to claim 6, characterized in that: The holding portion is a lock device that releases the holding state of the restricting portion by rotating a key. 8. The wiring duct connection device according to claim 3, characterized in that: The wiring duct connection device further includes a holding portion that holds a state in which the restricting portion restricts the operation of the operating handle, The holding portion releases holding of the restricting portion by a predetermined operation. 9. The wiring duct connection device according to claim 8, characterized in that: The holding portion is a lock device that releases the holding state of the restricting portion by rotating a key.