JP2018191405A - Weight board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weight board which enables work of cutting off and connecting an electric connection portion of a body part to be performed easily and unfailingly and achieves shortening of a work period of replacement work and low costs.SOLUTION: A weight board has: a body part 1 having a housing 10 in which electric devices are housed and installed in a direction such that the body part 1 stands upright relative to an installation surface; and a connection part 11 which is supported at the outer side of an outer peripheral edge when viewed from the front surface side of the housing 10 and electrically connects the electric devices to the outside.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a weight plate.

  An uninterruptible power supply system (UPS) is a system that supplies power of the same standard to a load for a predetermined time even if a power supply trouble occurs. An uninterruptible power supply system usually includes a main body and its peripheral board, and is installed in a data center or the like. The main body is a main part of the uninterruptible power supply system, and includes a power converter such as a converter that converts alternating current into direct current and an inverter that converts direct current into alternating current. Peripheral boards are an input transformer board, a storage battery board, etc.

  The main body and the peripheral board are generally housed in a substantially rectangular parallelepiped housing. These cases are often arranged in a line along a wall surface of an electric room or the like. In addition, the depth dimension and the height dimension of the casing of the main body and the casing of the peripheral board are unified from an aesthetic point of view. The dimensions of these cases are, for example, a depth dimension of about 1000 mm, and a height dimension of about 1900 mm when the capacity is 500 kVA and about 2300 mm when the capacity is 1000 kVA.

  A housing such as a main body is provided with a door on the front, and the door is opened to perform maintenance and inspection inside the main body or the peripheral board. Therefore, a working space is provided in front of the main body and the peripheral board. In addition, the main body and the peripheral board are updated when their expected life ends. Updating the main body and the peripheral board means that the whole main body and the peripheral board are replaced with new ones.

  The expected lifespan differs between the main body and the peripheral board, and the implementation time differs greatly between the replacement work of the main body and the replacement work of the peripheral board. Specifically, the expected life of the main body is about 15 years, and the replacement of the main body is indexed to 15 years after delivery of the uninterruptible power supply system. On the other hand, the expected life of the peripheral board is about 25 years, which is about 10 years later than the replacement time of the main body.

JP 2014-222982 A

  As described above, the replacement work of the main body must be carried out 10 years earlier than the peripheral board. Therefore, when the replacement work of the main body is performed, the connection between the main body and the peripheral board is disconnected, but the peripheral board itself remains installed. Therefore, in the replacement work of the main body, it is necessary to remove only the main body to be replaced from the group of housings arranged side by side from the fixed installation place and install the new main body in the same place. Become.

  However, the main body part is lined up with the peripheral board after installation, and is difficult to pull out first. It cannot be pulled out unless the internal heavy objects are disassembled and the casing is lightened.

  In addition, the power device of the main body and the peripheral board are electrically connected via a cable, and the connecting portion is provided inside the main body. For this reason, when only the main body is removed from the installation location, it is necessary to perform the work of separating the connection portions with the plurality of cables inside the main body, which is very troublesome. Also, when installing a new main body, wiring work for a plurality of cables has to be performed inside the main body, which is troublesome and a connection error is likely to occur.

  Furthermore, considering the labor cost of the replacement work, the shorter the work period of the replacement work for the main body, the better. However, the renewal cost increases if it takes time to perform the disconnection work and the connection work of the connection portion. In the case of UPS, if the construction period is prolonged, the safety against a power failure may be reduced.

  The present embodiment has been proposed to solve the above-described problems. The purpose of the present embodiment is to easily and reliably perform the disconnection and connection work of the electrical connection portion of the main body, and the replacement work can be performed. The purpose is to provide a heavy machine with a shorter construction period and lower costs.

  In order to achieve the above object, a weight board according to an embodiment of the present invention has a casing in which power equipment is accommodated, a main body portion installed in a direction standing upright on an installation surface, and a front side of the casing And a connecting portion that is supported outward from the outer peripheral edge and electrically connects the power device and the outside.

It is a perspective view of the weight board of an embodiment. It is a front view of the weight board of an embodiment. It is a circuit diagram of an uninterruptible power supply system containing an embodiment. It is a perspective view of the connection part of an embodiment. It is the side view (A) and top view (B) which show the connection part and fixed side connection part in a disconnection position. It is the side view (A) and top view (B) which show the connection part and fixed side connection part in a closed position. It is a top view which shows the preparation for extraction from the installation position of the weight board of embodiment. It is a top view which shows the middle of the extraction from the installation position of the weight board of embodiment. It is a top view which shows immediately before the completion of extraction from the installation position of the weight board of embodiment. It is a top view which shows the carrying-out state of the weight board of embodiment. It is a top view which shows the carrying-in state of the weight board of embodiment. It is a top view which shows positioning to the installation position of the weight board of embodiment. It is a top view which shows insertion to the installation position of the weight board of embodiment. It is a front view which shows the example which applied embodiment to the periphery board. It is a front view which shows the modification of a connection part. It is a perspective view which shows the modification which provided the connection part in the side surface. It is a front view of the modification of FIG. It is a perspective view which shows the modification of a connector part. It is a perspective view which shows the modification of a connection part. It is a side view which shows the modification of the connection part in a disconnection position, and a fixed side connection part. It is a side view which shows the modification of the connection part in a closed circuit position, and a fixed side connection part. It is a perspective view which shows the modification of a connection part and a fixed side connection part.

A weight board of an embodiment will be described with reference to the drawings. The weight board of this embodiment is an example applied to an uninterruptible power supply system (hereinafter referred to as UPS).
[Constitution]
As shown in the perspective view of FIG. 1 and the front view of FIG. 2, the weight board has a main body 1 and a connection part 11. The main body 1 has a housing 10 in which power equipment is accommodated, and is installed in a direction that stands upright on the installation surface. The weight board of the present embodiment is a board having a weight that is difficult for an operator to install alone. This weight is, for example, about 100 kg to 3000 kg. The weight board can also be referred to as a “power board”.

  The housing 10 is a substantially rectangular parallelepiped container. The casing 10 is installed in the installation space F on the installation surface by moving in the depth direction as indicated by a thick white arrow in the figure. The installation space F of this embodiment is a horizontal floor surface. A horizontal surface opposite to the installation space F of the housing 10 installed in the installation space F is defined as an upper surface 10a. Of the four vertical surfaces of the housing 10, any one surface is defined as a front surface 10b, the opposite surface is defined as a back surface 10c, and the other two surfaces are defined as side surfaces 10d and 10e. In FIG.1 and FIG.2, the near side is a front. The housing 10 is provided with doors on the front, and these can be opened for internal maintenance and inspection. The depth direction is the thickness direction between the front surface 10b and the back surface 10c.

  The power device accommodated in the housing 10 is a device that exhibits a function upon receiving power supply. The power equipment includes equipment that constitutes a part of the power receiving / transforming system or the power distribution system. For example, a power device includes a device constituting a UPS, a switching device that opens and closes an electric circuit such as a circuit breaker and a disconnecting switch, a transformer, and a protection relay. Moreover, equipment for equipment monitoring, for example, a PLC, a relay, an arrester, a hub, a timer, and the like are also included in the power equipment. Moreover, the terminal board and circuit board which have an electrical contact are also contained in an electric power apparatus. Furthermore, power consumption devices such as air conditioners, computers, and display devices are also included in the power devices.

  The power device of the present embodiment is a device that constitutes a part of the UPS. The UPS can be applied to both a common standby uninterruptible power supply system and a parallel redundant uninterruptible power supply system, but in the following description, the circuit is simplified.

  First, the power devices accommodated in the housing 10 in the present embodiment are a converter 2, an inverter 3, and an AC switch 4, as shown in FIG. The converter 2 is a device that converts alternating current into direct current. The inverter 3 is a device that converts direct current into alternating current. The converter 2 and the inverter 3 are connected to the main path R1 from the alternating current input to the output in the steady state. The AC switch 4 is a device that opens and closes the bypass path R <b> 2 that does not pass through the converter 2 and the inverter 3. The bypass route R2 is a route for directly sending AC power from the AC input to the output during maintenance inspection or failure. In addition, a charge / discharge path R3 is branched and connected to a main path R1 between the converter 2 and the inverter 3.

  The input side of the main path R1 and the input side of the bypass path R2 are connected to the transformer of the input transformer board 6. The input transformer panel 6 is a panel that houses a step-down transformer connected to a commercial power source. The charge / discharge path R <b> 3 is connected to the storage battery of the storage battery panel 7. The storage battery panel 7 is a panel that houses a storage battery serving as a power source during a power failure. Output sides of the main route R1 and the bypass route R2 are connected to the branch board 8. The branch board 8 is a board connected to a connection device that consumes power. Hereinafter, the input transformer board 6, the storage battery board 7, the branch board 8, and the like are referred to as peripheral boards. Although not shown, the peripheral board is installed in an electric room or the like in which the main body 1 is accommodated. You may install in the position adjacent to the housing | casing 10 of the main-body part 1. FIG.

  The connection unit 11 is supported outward from the outer peripheral edge when viewed from the front side of the housing 10 in a state where the main body unit 1 is installed on the installation surface, and electrically connects the power device and the outside. The outer peripheral edge is a frame along the outer surfaces of the upper surface 10a and both side surfaces 10d and 10e. Supporting outward from the outer peripheral edge when viewed from the front side means that the portion where the connecting portion 11 is supported protrudes outward from the upper surface 10a and both side surfaces 10d and 10e without being hidden behind the rear surface. Say. It is preferable for the operator to confirm, grasp and operate from the front side that the electrical connection portion is located outward from the outer peripheral edge. However, a part of the connection part 11 and a part of the electrical connection part may be hidden behind the housing 10.

  The connection unit 11 is a movable side connection unit that is movably provided in accordance with the position of the fixed side connection unit 21 fixed to equipment outside the housing 10 in a state where the main body unit 1 is installed on the installation surface. is there. As shown in FIG. 3, a plurality of connection portions 11 of the present embodiment are provided on the input side of the main route R1, the input side of the bypass route R2, the charge / discharge route R3, the output side of the main route R1, and the bypass route R2, respectively. It is connected. Note that the electrical connection portion of the connection portion 11 with the fixed-side connection portion 21 is grasped by an operator as viewed from the front side of the housing 10 because the connection portion 11 is supported at the position as described above. Cheap.

  The fixed side connection unit 21 is a component fixed to equipment outside the housing 10. The external equipment here refers to equipment constituting the place where the casing 10 is installed or equipment installed in this place. The equipment of the present embodiment is equipment that constitutes an electric room, equipment installed in the electric room, and includes a wall surface of the electric room, a panel installed in the electric room, a frame surrounding the casing 10, and the like.

  The fixed-side connection portion 21 is electrically connected to the peripheral board via the cable C. That is, the cable C from the input transformer panel 6, the storage battery panel 7, and the branch panel 8 is extended through the bus duct and connected to the fixed-side connection portion 21. As shown in FIG. 3, a plurality of fixed-side connection portions 21 are provided corresponding to the connection portions 11, and the connection portions 11 are connected to the fixed-side connection portions 21, so that the input side of the main route R <b> 1, The input transformer board 6 is connected to the input side of the bypass path R2, the storage board 7 is connected to the charge / discharge path R3, and the branch board 8 is connected to the output side of the main path R1 and the bypass path R2.

  Further, the electrical connection portion E (see FIGS. 5 and 6) of the connection portion 11 with the fixed side connection portion 21 is separated from the fixed side connection portion 21 in a state where the housing 10 is installed on the installation surface. It is provided so as to be movable between the disconnection position and the closed position electrically connected to the fixed-side connecting portion 21. Further, a plurality of connection portions 11 are provided for each AC phase. A plurality of connection portions 11 are provided separately for alternating current and direct current.

  The connection part 11 has the conductor 11a, as shown in FIGS. Although not shown, the conductor 11a is connected to a power device via a flexible cable or the like. The conductor 11 a includes a pair of flat plates parallel to the depth direction of the housing 10.

Hereinafter, more specific configurations of the connecting portion 11 and the fixed-side connecting portion 21 will be described.
(Connection part)
The connection part 11 is supported by the support part 101. As shown in FIGS. 1 and 2, the support portion 101 is a plate-like member that is provided on the upper surface 10a of the housing 10 and is fixed in a direction parallel to the front surface 10b. For this reason, the connection part 11 is supported on the upper surface of the housing 10.

  The connection unit 11 supported by the support unit 101 includes a guide unit 111, a movable unit 112, and an operation unit 113. The guide portion 111 is a member that guides the movement of the conductor 11a in order to adjust the position of the conductor 11a with respect to the fixed-side connection portion 21. The guide part 111 includes a guide rail 111a and a slider 111b. The guide rail 111a is an elongated member having a substantially U-shaped cross section in which the back side of the housing 10 is an opening. The guide rail 111a is attached in the width direction of the housing 10, that is, in the horizontal direction. The slider 111b is a rectangular tube-shaped elongated member inserted into the guide rail 111a, and slides in the width direction of the housing 10 along the guide rail 111a.

  The movable part 112 is a member that moves while supporting the conductor 11a. The movable part 112 includes a moving plate 112a and a support plate 112b. The moving plate 112a is a flat plate that is attached to the slider 111b and moves in the width direction of the housing 10 together with the slider 111b. The support plate 112b has a pair of flat plate shapes that protrude in parallel with the depth direction, and is attached to the back side of the moving plate 112a. The support plate 112b has a guide groove 112c in the depth direction. The pair of conductors 11a are supported so as to be movable along the guide grooves 112c of the support plate 112b.

  For this reason, the conductor 11a can move in the width direction of the housing 10 together with the slider 111b that moves along the guide rail 111a. In addition, the conductor 11a can move in the depth direction of the housing 10 along the guide groove 112c. Since the cable connected to the conductor 11a is flexible, conduction with the cable is ensured even if such movement occurs.

  The operation unit 113 is a member for manually operating the position of the conductor 11a. The operation unit 113 includes an urging plate 113a and a handle 113b. The urging plate 113a has a rectangular shape parallel to the front surface of the housing 10 and long in the width direction. A substantially U-shaped connecting portion 11b that connects the pair of conductors 11a is attached to the urging plate 113a. That is, the connecting portion 11 b attached to the conductor 11 a provided on the back side of the support portion 101 passes through the hole 101 a formed in the support portion 101 and is provided on the front side of the support portion 101. 113a is secured with insulation. The urging plate 113a is formed of a transparent material so that the insertion state of the conductor 11a can be visually recognized. The handle 113b is a substantially U-shaped bar-shaped member. Both ends of the handle 113b are fixed to the front surface of the urging plate 113a so that the longitudinal direction is the width direction of the housing 10.

(Fixed side connection)
The fixed side connection portion 21 is a member that performs electrical connection with the cable C via the connection portion 11. The fixed side connection portion 21 includes a fixed plate 211, a terminal plate 212, and a connector portion 213.

  The fixed plate 211 is a rectangular plate fixed to equipment outside the housing 10. The terminal plate 212 is a conductive plate fixed to the fixed plate 211. The upper end of the terminal board 212 is an end for connection with the terminal of the cable C. For example, although not shown, a connection hole is formed.

  The connector part 213 is a member through which the conductor 11a is inserted and removed. That is, the conductor 11a and the connector part 213 form a fitting part that is electrically connected when the conductor 11a moves from the connecting part 11 toward the fixed-side connecting part 21 and fits together. The connector part 213 has the recessed part 213a and the contact electrode 213b. The recess 213a is a hollow portion into which the conductor 11a is inserted. The contact electrode 213b is a member that is provided in the recess 213a and is electrically connected to the terminal plate 212.

  A plurality of such connector portions 213 are arranged with respect to the conductor 11a. In the present embodiment, three connector portions 213 are provided. The contact electrodes 213b of the connector portion 213 share the rated current equally. For example, when the rated current is 300 A, a current of about 100 A can be passed. However, it is good also as the single connector part 213 which bears a rated current.

  As shown in FIGS. 1 and 2, a plurality of sets of the connection part 11 and the fixed-side connection part 21 as described above are prepared by being divided into input / output sections. For example, the connection unit 11 and the fixed side connection unit 21 are provided separately for an AC input AN, a DC input DN, a bypass input BN, and an AC output AO. These connecting portions 11 are arranged at intervals from each other to ensure an insulation distance. In addition, the fixed-side connection portion 21 is also arranged at a position corresponding to the connection portion 11 with a space between each other, thereby ensuring an insulation distance. Furthermore, by dividing the connection portion 11 and the fixed-side connection portion 21 into a plurality of sets as described above, the insertion / extraction load of the fitting portion is reduced.

[Electrical connection work]
Next, an operation for connecting the connecting portion 11 as described above to the fixed-side connecting portion 21 will be described. In addition, prior to the electrical connection work and the connection release work, the description of the work of releasing the charged portion with a circuit breaker or the like to ensure safety will be omitted. As shown in FIGS. 4, 5 </ b> A, and 5 </ b> B, when the main body 1 is installed in the installation space F, the conductor 11 a and the recess 213 a of the connector 213 are spaced apart from each other. That is, at this time, the connecting portion 11 is in the disconnection position.

  The operator holds the handle 113b of the operation unit 113, and moves it in the width direction as shown in FIG. 5B, whereby the conductor 11a attached to the urging plate 113a and the recess 213a are positioned in the width direction. Then, as shown in FIG. 5A, the urging plate 113a is pushed to the back side. Then, as shown in FIGS. 6A and 6B, the connection portion E of the conductor 11a fits into the recess 213a of the connector portion 213, and comes into contact with and electrically connects to the contact electrode 213b. Thereby, the connection part 11 becomes a closed position, and the cable C is connected to the power device inside the housing 10 via the connection part 11 and the fixed side connection part 21. The connection with the cable C connects the peripheral board and the power equipment inside the housing 10.

[Electrical disconnection work]
When the connection between the connection part 11 and the fixed side connection part 21 is released, as shown in FIGS. 6A and 6B, the handle 113b of the operation part 113 is held and pulled to the front side. Then, the conductor 11a is detached from the concave portion 213a of the connector portion 213, and the electrical connection with the contact electrode 213b is released. Thereby, the connection part 11 becomes a disconnection position, as shown to FIG. 5 (A) and (B).

[Main body replacement work]
Next, the replacement work of the main body 1 will be described.

(Main body unloading work)
The carrying-out work of the main body 1 will be described with reference to FIGS. In addition, the base part B is placed in the installation space F. The base B is a rectangular frame-like plate that is interposed between the main body 1 and the installation surface and supports the main body 1. The installation on the installation surface includes the case where the casing 10 is installed in direct contact with the installation surface and the case where the housing 10 is installed via a member such as the base portion B.

  First, as shown in FIG. 7, the worker installs two rail portions M1 in parallel in front of the front of the installation space F in which the housing 10 is installed. An eyebolt M <b> 2 is attached to a mounting hole (not shown) on the front surface of the housing 10. Further, the anchor M3 is fixed near the floor surface of the carry-in / out space S, and the lever block M4 is attached to the anchor M3. Then, the hook portion of the lever block M4 is hooked on the eyebolt M2 attached to the attachment hole, and the housing 10 is pulled out from the installation space F by operating the lever block M4.

  As shown in FIG. 8, when a mounting hole (not shown) on the side surface of the housing 10 appears by pulling out the housing 10, the drawing operation of the housing 10 is temporarily stopped. Then, the hook portion of the lever block M4 is removed from the eye bolt M2 in the front mounting hole, and the eye bolt M2 is mounted in the side mounting hole. The case 10 is further pulled out by hooking the hook portion of the lever block M4 on the eyebolt M2 and operating the lever block M4.

  As shown in FIG. 9, when the mounting hole near the rear side of the side surface of the housing 10 appears by further drawing of the housing 10, the drawing work is temporarily stopped. Then, the hook portion of the lever block M4 is removed from the eyebolt M2, and the eyebolt M2 is attached to the mounting hole closer to the back surface. The case 10 is further pulled out by hooking the hook portion of the lever block M4 on the eyebolt M2 and operating the lever block M4. As a result, the casing 10 is completely lowered from the base portion B, and the entire casing 10 is pulled out to the carry-in / out space S.

  As shown in FIG. 10, the housing 10 pulled out to the carry-in / out space S is lifted with a jack or the like, and the handlift M5 is brought into the room. Finally, using the hand lift M5, the worker H carries out the housing 10 through the carry-in / out space S, and the carry-out work of the main body 1 is completed.

(Bringing in the main unit)
Next, the carrying-in operation | work of the main-body part 1 is demonstrated with reference to FIGS. As shown in FIG. 11, a plurality of workers H carry the housing 10 of the main body 1 to the front of the installation space F using a hand lift M5.

  As shown in FIG. 12, four square members M6 are installed in front of the front surface of the housing 10, the housing 10 is lifted with a jack or the like, the hand lift M5 is pulled out from under the housing 10, and the Put it on. Then, two parallel rail portions M1 are disposed between the square members M6, and the housing 10 is placed on the rail portions M1.

  As shown in FIG. 13, the eyebolt M <b> 2 is attached to an attachment hole (not shown) on the side surface of the housing 10. Further, the anchor M3 is fixed near the floor surface of the carry-in / out space S, and the lever block M4 is attached to the anchor M3. Then, the hook portion of the lever block M4 is hooked on the eyebolt M2 attached to the attachment hole, and the housing 10 is pushed into the installation space F by operating the lever block M4. When almost the entire housing 10 is mounted on the base B, the hook portion of the lever block M4 is removed from the eyebolt M2, the eyebolt M2 is removed from the mounting hole, and then the housing 10 is pushed into the main body portion. 1 carry-in work is completed.

[Function and effect]
The present embodiment includes a housing 10 in which power equipment is accommodated, and is supported outward from the outer peripheral edge when viewed from the front side of the housing 10 and the main body 1 installed in a direction standing upright on the installation surface. And a connection unit 11 that electrically connects the power device and the outside.

  For this reason, when replacing the main body 1, the connection portion 11 is provided outward from the outer peripheral edge of the housing 10 when viewed from the front side of the housing 10. However, it is possible to easily and reliably perform the work of disconnecting and connecting the connection part 11 to the fixed-side connection part 21. For example, compared with the case where a cable wiring work or a wire separation work is performed inside the housing 10 or a connection portion is present on the back side, the work becomes much easier. For this reason, shortening of the construction period and cost reduction of the replacement work can be realized. In the case of UPS, since the stop period is shortened, it is possible to prevent a decrease in safety against a power failure.

  The connection portion 11 is a connection portion that is movably provided in accordance with the position of the fixed-side connection portion 21 fixed to equipment outside the housing 10 in a state in which the main body portion 1 is installed on the installation surface.

  For this reason, the operation of aligning the connection portion 11 with respect to the fixed-side connection portion 21 can be performed separately from the installation operation of the main body 1 at a position outside the outer peripheral edge of the housing 10, so that the operation is easy. It becomes. Furthermore, although it is very difficult to adjust the installation position of the main body part 1 to a position where the connection part 11 matches the fixed side connection part 21 in the heavy weight board, in this embodiment, alignment is performed after installation. Is easy.

  The connection part E of the connection part 11 to the fixed side connection part 21 is electrically connected to the disconnection position separated from the fixed side connection part 21 and the fixed side connection part 21 in a state where the housing 10 is installed on the installation surface. It is provided to be movable between the closed position.

  For this reason, the connection and disconnection work of the connection portion 11 with respect to the fixed-side connection portion 21 can be easily and reliably performed at a position outside the outer peripheral edge of the housing 10. Moreover, the operation | work from the front side becomes easy by setting it as the structure which connects and disconnects the connection part 11 by moving to a depth direction.

  A plurality of connection portions 11 are provided in the input / output sections. For this reason, direct current and alternating current can be reliably insulated to ensure safety. Further, the work is facilitated by reducing the insertion / extraction load.

[Modification]
(1) As shown in FIG. 14, the peripheral board such as the input transformer board 6, the storage battery board 7, and the branch board 8 is also provided with the same connection portion 11 as described above, and the main body via the cable C passing through the bus duct BD. The replacement work may be facilitated by connecting to the unit 1. In this case, the peripheral board can be regarded as the weight board 1.

(2) The number of connecting portions 11 may be singular or plural, and is not limited to the above-described aspect. The number of electrical connection parts that one connection part 11 opens and closes may be plural or single. For example, as shown in FIG. 15, the number of connection portions 11 may be one, and a large number of connection portions may be opened and closed by one operation.

(3) As shown in FIGS. 16 and 17, the connection portion 11 may be provided on both or one of the side surfaces 10 d and 10 e of the housing 10, and the fixed-side connection portion 21 may be arranged accordingly. That is, the support portion 101 is a plate-like member that is provided on the side surfaces 10d and 10e of the housing 10 and fixed in a direction parallel to the front surface 10b. Thereby, even when there is not enough space in the upper space, it is possible to connect and disconnect the connecting portion 11 and the fixed-side connecting portion 21 from the front side as described above.

  In addition, when the current value borne by each connecting portion 11 and fixed-side connecting portion 21 becomes large, the AC input R phase, S phase, T phase, DC input P, N, bypass input R phase, S A phase, a T phase, an AC output R phase, an S phase, and a T phase can be provided separately. These connecting portions 11 are arranged at intervals from each other to ensure an insulation distance. In addition, the fixed-side connection portion 21 is also arranged at a position corresponding to the connection portion 11 with a space between each other, thereby ensuring an insulation distance.

  The number of connector portions 213 of the fixed-side connection portion 21 is not limited to the above aspect. For example, as shown in FIG. 18, by providing a set of three connector portions 213 in four rows for each fixed-side connection portion 21, the current borne by the set of connector portions 213 becomes excessive. Can be prevented.

(4) The connecting portion 11 and the fixed-side connecting portion 21 may be provided with an elastic member for buffering the operation of each portion. For example, as shown in FIG. 19, an elastic member 310 that is a compression coil spring that expands and contracts in the width direction may be provided between the conductor 11a and the support plate 112b. The conductor 11a can be moved in the depth direction of the housing 10 together with the elastic member 310 that moves along the guide groove 112c. Thereby, when connecting the conductor 11a to the connector part 213, the slight shift | offset | difference of the width direction is absorbed by the elastic member 310, and it fits into the recessed part 213a.

  20 and 21, a plurality of elastic members 320 may be attached between the urging plate 113a and the connecting portion 11b. The elastic member 320 is a compression coil spring that expands and contracts in the depth direction. Further, a plurality of elastic members 330 may be attached between the fixed plate 211 and the terminal plate 212. The elastic member 330 is a compression coil spring that expands and contracts in the depth direction. Thereby, the impact by the collision between members at the time of inserting / extracting the conductor 11a by the operation part 113 is relieved.

  The connector portion 213 is attached to the terminal plate 212 so as to be freely movable in the height direction and the width direction of the housing 10 and is biased to a fixed position by an elastic member (not shown). For example, the guide width can be several millimeters in the height direction and the width direction. Thereby, the connector part 213 constitutes a floating connector that can absorb the positional deviation between the conductor 11a and the recess 213a by the recess 213a following the position of the conductor 11a when the conductor 11a is inserted.

(5) As shown in FIGS. 20 to 22, the conductor 11 a may be provided with a holding portion 340 that holds the operation portion 113 at a distance that ensures electrical insulation from the connector portion 213. That is, the substantially U-shaped fixing frame 341 is attached to the support portion 101, and the substantially U-shaped holding frame 342 is attached to the position of the urging plate 113a corresponding thereto. Screw holes are formed in the fixed frame 341 and the holding frame 342, and the fixing frame 341 and the holding frame 342 are aligned so that the conductor 11a is at the disconnecting position, and the screw 343 is inserted into the screw hole and fastened. it can. Thereby, at the time of inspection or the like, the state in which the power device is reliably disconnected from the outside is maintained, so that safer inspection work can be performed.

(6) Each embodiment and each aspect described above are presented as examples in the present specification, and are not intended to limit the scope of the invention. In other words, the present invention can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof in the same manner as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 ... Main-body part 2 ... Converter 3 ... Inverter 4 ... AC switch 6 ... Input transformer board 7 ... Storage battery board 8 ... Branch board 10 ... Case 10a ... Upper surface 10b ... Front surface 10c ... Back surface 10d, 10e ... Side surface 101 ... Support part 101a ... Hole 11 ... Connecting part 11a ... Conductor 11b ... Linking part 111 ... Guide part 111a ... Guide rail 111b ... Slider 112 ... Moving part 112a ... Moving plate 112b ... Support plate 112c ... Guide groove 113 ... Operating part 113a ... Biasing plate 113b ... handle 21 ... fixed side connection part 211 ... fixing plate 212 ... terminal plate 213 ... connector part 213a ... concave part 213b ... contact electrodes 310, 320, 330 ... elastic member 340 ... holding part 341 ... fixing frame 342 ... holding frame 343 ... screw F ... Installation space R1 ... Main route R2 ... Bypass route R3 ... Charge / discharge route M1 ... Rail part M2 ... Eyebolt M3 Anchor M4 ... lever block M5 ... pallet jack M6 ... timber

In order to achieve the above object, a weight board according to an embodiment of the present invention has a casing in which a converter, an inverter, and an AC switch, which are power devices constituting a part of a UPS, are housed, and stands upright on an installation surface. a main body installed in the direction, than said outer peripheral edge as viewed from the front side of the housing is connected via a cable to the electrical equipment housed outwardly supported on Rutotomoni the housing, of the housing has a connection portion electrically connected to the stationary side connecting portion fixed to the outside, a plurality of the connecting portion, said converter and the input side of the connected main path to the inverter, the AC switch Connected and provided corresponding to the input side of the bypass path that directly sends AC power from the AC input to the output, the charge / discharge path connected to the storage battery, the main path and the output side of the bypass path, respectively, and the fixed Side connection The unit is a power device that constitutes a UPS other than the converter, inverter, and AC switch housed in the main body, and is connected to a power device housed in a peripheral panel via a cable. In a state where the main body portion is installed on the installation surface, it is in a position where it can be connected to and disconnected from the fixed-side connection portion via a conductor that can move between the connection portion and the fixed-side connection portion .

In order to achieve the above object, a weight board according to an embodiment of the present invention has a casing that accommodates a converter, an inverter, and an AC switch, which are power devices that constitute a part of a UPS, and stands upright on an installation surface. A main body portion installed in a direction, supported outside from the outer periphery when viewed from the front side of the housing and connected to a power device accommodated in the housing via a cable, A connection part electrically connected to a fixed side connection part fixed to the outside, and a plurality of the connection parts are connected to the input side of the main path connected to the converter and the inverter, to the AC switch Connected and provided corresponding to the input side of the bypass path that directly sends AC power from the AC input to the output , the charge / discharge path connected to the storage battery, the main path, and the output side of the bypass path, respectively, and the fixed Side connection Is a power device that constitutes a UPS other than the converter, inverter, and AC switch housed in the main body, and is connected to a power device housed in a peripheral panel via a cable. in a state in which parts are installed on the installation surface, before SL via the movable conductor with respect to the fixed-side connecting portion, in the connection and disconnection possible position and the fixed-side connecting portion.

Claims (6)

A main unit having a casing in which power equipment is accommodated and installed in a direction standing upright on the installation surface;
A connection part that is supported outward from the outer peripheral edge when viewed from the front side of the housing, and electrically connects the power device and the outside,
A weight plate characterized by comprising:   The connection portion is a movable side connection portion that is movably provided in accordance with the position of the fixed side connection portion fixed to the equipment outside the housing in a state where the main body portion is installed on the installation surface. The weight plate according to claim 1.   The connecting portion of the movable side connecting portion to the fixed side connecting portion is electrically connected to the disconnection position separated from the fixed side connecting portion and the fixed side connecting portion in a state where the housing is installed on the installation surface. 3. The weight board according to claim 2, wherein the weight board is provided so as to be movable between the connected closed positions.   The weight board according to any one of claims 1 to 3, wherein a plurality of the connection portions are provided separately for input and output sections.   The weight board according to any one of claims 1 to 4, wherein a plurality of the connection portions are provided separately for each AC phase.   6. The weight board according to claim 1, wherein the power device includes a converter that converts alternating current into direct current and an inverter that converts direct current into alternating current.

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