UNINTERRUPTIBLE POWER SUPPLY DEVICE AND CONTROL MODULE FOR UNINTERRUPTIBLE POWER SUPPLY DEVICE

In an uninterruptible power supply device, a control module includes a thyristor unit, a control unit, and a housing that accommodates the thyristor unit and the control unit, in which the thyristor unit and the control unit are arranged in a front-rear direction intersecting a left-right direction in the housing of the control module.

CROSS-REFERENCE TO RELATED APPLICATION

The priority application number JP2021-167611, an uninterruptible power supply device and a control module for an uninterruptible power supply device, Oct. 12, 2021, Takahiro Kinuta, upon which this patent application is based, are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to an uninterruptible power supply device and a control module for an uninterruptible power supply device, and more particularly, to an uninterruptible power supply device and a control module for an uninterruptible power supply device which include a thyristor provided in a bypass current path for outputting AC power to a load external to the device without passing through a power conversion unit.

Background Art

In the related art, an uninterruptible power supply device including a thyristor provided in a bypass current path for outputting AC power to a load external to the device without passing through a power conversion unit is known. Such an uninterruptible power supply device is disclosed in JP-A-2020-78214, for example.

JP-A-2020-78214 discloses the uninterruptible power supply device including a power conversion unit that converts power from an AC power supply, and a bypass circuit for feeding power from a bypass input power supply external to the device when the uninterruptible power supply device is stopped, such as during maintenance. The bypass circuit includes a thyristor unit including a plurality of thyristors provided corresponding to the phases of AC power fed from the bypass input power supply external to the device. Moreover, in a housing of the uninterruptible power supply device, a control device that controls power conversion of the power conversion unit is accommodated together with the power conversion unit and the thyristor unit.

Here, although not specified in JP-A-2020-78214, there is a case in which a module that accommodates the power conversion unit and a module that accommodates the thyristor unit and the control device are provided separately. In such a case, the uninterruptible power supply device is configured such that the module that accommodates the power conversion unit and the module that accommodates the thyristor unit and the control device are disposed adjacent to each other in a left-right direction.

In the uninterruptible power supply device as described above, the module that accommodates the power conversion unit and the module that accommodates the thyristor unit and the control device are disposed adjacent to each other in the left-right direction. Therefore, there is a problem that a width in the left-right direction of the entire uninterruptible power supply device is increased in a case in which a width in the left-right direction of the module configuring the uninterruptible power supply device, such as the module that accommodates the power conversion unit or the module that accommodates the thyristor unit and the control device is increased. Therefore, it is desired to suppress the increase in the width in the left-right direction of the module forming the uninterruptible power supply device, and to suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

SUMMARY OF THE INVENTION

The present invention has been made to solve the above problems, and the present invention is to provide an uninterruptible power supply device and a control module for an uninterruptible power supply device which can suppress an increase in a width in a left-right direction of a module forming an uninterruptible power supply device and can suppress an increase in a width in the left-right direction of the entire uninterruptible power supply device.

In order to achieve the above object, a first aspect of the present invention relates to an uninterruptible power supply device including a power conversion module that includes a power conversion unit that converts power fed from an AC power supply or a battery external to the device and feeds the converted power to a load external to the device, and a control module that is disposed adjacent to the power conversion module in a left-right direction and controls power conversion of the power conversion module, in which the control module includes a thyristor unit that includes a thyristor provided in a bypass current path for outputting AC power to the load external to the device without passing through the power conversion unit, a control unit that controls the power conversion of the power conversion module, and a housing that accommodates the thyristor unit and the control unit, and the thyristor unit and the control unit are arranged in a front-rear direction intersecting the left-right direction in the housing of the control module.

In the uninterruptible power supply device according to the first aspect, as described above, the thyristor unit and the control unit are arranged in the front-rear direction intersecting the left-right direction in the housing of the control module. As a result, the width in the left-right direction of the control module can be made smaller than the width in a case in which the thyristor unit and the control unit are arranged in the left-right direction in the housing of the control module. As a result, it is possible to suppress the increase in the width in the left-right direction of the module (control module) forming the uninterruptible power supply device, and to suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

In the uninterruptible power supply device according to the first aspect, it is preferable that the thyristor unit and the control unit are disposed in the housing of the control module to overlap each other as viewed from the front-rear direction. With such a configuration, the width in the left-right direction of the control module can be made smaller than the width in a case in which the thyristor unit and the control unit do not overlap each other as viewed from the front-rear direction in the housing of the control module. As a result, it is possible to easily suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

In the uninterruptible power supply device according to the first aspect, it is preferable that the thyristor unit is disposed on one side in the front-rear direction with respect to a center of the housing of the control module, and the control unit is disposed on the other side in the front-rear direction with respect to the center of the housing of the control module. With such a configuration, during installation and maintenance of the device, the thyristor unit can be easily accessed from one side in the front-rear direction, and the control unit can be easily accessed from the other side in the front-rear direction. As a result, unlike a case in which both the thyristor unit and the control unit, which are arranged in the front-rear direction, are disposed in the housing of the control module to one side or the other side in the front-rear direction from the center of the housing, both the thyristor unit and the control unit can be easily accessed during installation and maintenance of the device. As a result, it is possible to improve workability during installation and maintenance of the device.

It is preferable that the uninterruptible power supply device according to the first aspect further includes an input module that is disposed on one side in the left-right direction with respect to the control module and inputs the AC power fed from the AC power supply external to the device to the control module, in which a width in the left-right direction of the control module is smaller than a width in the left-right direction of the input module. With such a configuration, the width in the left-right direction of the control module can be made smaller than a case in which the width in the left-right direction of the control module is made larger than the width in the left-right direction of the input module, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

In the configuration in which the input module is provided, it is preferable that a plurality of the power conversion modules is provided, the plurality of power conversion modules includes a first power conversion module that is disposed on one side in the front-rear direction on which the thyristor unit is disposed, and a second power conversion module that is disposed on the other side in the front-rear direction on which the control unit is disposed, the first power conversion module and the second power conversion module are disposed on the other side in the left-right direction with respect to the control module, and the thyristor unit and the control unit are provided in common to the first power conversion module and the second power conversion module. With such a configuration, among the plurality of power conversion modules, the first power conversion module is disposed on one side in the front-rear direction on which the thyristor unit is disposed, and the second power conversion module is disposed on the other side in the front-rear direction on which the control unit is disposed, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device than in a case in which the plurality of power conversion modules is disposed in a row in the left-right direction. In addition, the thyristor unit and the control unit are provided in common to the first power conversion module and the second power conversion module, so that it is possible to suppress an increase in the number of components and complication of the device configuration than in a case in which the thyristor unit and the control unit are provided separately for each of the first power conversion module and the second power conversion module.

In this case, it is preferable that the width in the left-right direction of the control module is smaller than a width in the left-right direction of each of the first power conversion module and the second power conversion module. With such a configuration, the width in the left-right direction of the control module can be made smaller than a case in which the width in the left-right direction of the control module is made larger than the width of each of the first power conversion module and the second power conversion module, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

In the configuration in which the input module is provided, it is preferable that the control module is provided with a bypass wiring that is connected to the thyristor of the thyristor unit and forms the bypass current path, and the bypass wiring includes a bypass path connection unit that is disposed between the thyristor unit and the control unit in the front-rear direction and is connected to a wiring of the input module. With such a configuration, it is possible to make the width in the left-right direction of the control module smaller than in a case in which the bypass path connection unit is disposed adjacent to the thyristor unit or the control unit in the left-right direction in the housing of the control module.

In the configuration in which the input module is provided, it is preferable that the control module is provided with an AC input wiring that is electrically connected to the power conversion unit of the power conversion module and the AC power supply external to the device, and the AC input wiring includes an AC input connection unit that is disposed between the thyristor unit and the control unit in the front-rear direction and is connected to a wiring of the input module. With such a configuration, it is possible to make the width in the left-right direction of the control module smaller than in a case in which the AC input connection unit is disposed adjacent to the thyristor unit or the control unit in the left-right direction in the housing of the control module.

In the uninterruptible power supply device according to the first aspect, it is preferable that the control module is provided with a DC wiring that is electrically connected to the power conversion unit of the power conversion module and the battery external to the device, and the control module includes a battery connection unit that is provided in an upper portion of the housing and electrically connects the battery external to the device and the DC wiring. With such a configuration, a cable or the like connected to the battery external to the device can be connected to the battery connection unit provided on the upper portion of the housing. As a result, unlike a case in which the battery connection unit is provided on a direction side of the control module to which the power conversion module is adjacent, even in a case in which the battery external to the device is disposed on a direction side on which the power conversion module is adjacent to the control module, it is possible to electrically connect the DC wiring of the control module and the battery external to the device from above the housing without passing through the power conversion module. As a result, unlike a case in which the battery connection unit is provided on a direction side of the control module to which the power conversion module is adjacent, it is possible to easily electrically connect the DC wiring of the control module and the battery external to the device.

It is preferable that the uninterruptible power supply device according to the first aspect further includes an output module that is disposed on the other side in the left-right direction with respect to the power conversion module and outputs the power converted by the power conversion unit of the power conversion module to the load external to the device, in which a width in the left-right direction of the control module is smaller than a width in the left-right direction of the output module. With such a configuration, the width in the left-right direction of the control module can be made smaller than a case in which the width in the left-right direction of the control module is made larger than the width of the output module, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

In order to achieve the above object, a second aspect of the present invention relates to a control module for an uninterruptible power supply device, the control module including a control unit that controls power conversion of a power conversion module including a power conversion unit that converts power fed from an AC power supply or a battery external to the device and feeds the converted power to a load external to the device, a thyristor unit that includes a thyristor provided in a bypass current path for outputting AC power to the load external to the device without passing through the power conversion unit, and a housing that accommodates the thyristor unit and the control unit, in which the control module is disposed adjacent to the power conversion module in a left-right direction, and the thyristor unit and the control unit are arranged in a front-rear direction intersecting the left-right direction in the housing.

As described above, in the control module for an uninterruptible power supply device according to the second aspect, the thyristor unit and the control unit are arranged in the front-rear direction intersecting the left-right direction in the housing. As a result, the width in the left-right direction of the control module for an uninterruptible power supply device can be made smaller than the width in a case in which the thyristor unit and the control unit are arranged in the left-right direction in the housing of the control module for an uninterruptible power supply device. As a result, it is possible to suppress the increase in the width in the left-right direction of the module (control module for an uninterruptible power supply device) forming the uninterruptible power supply device, and to suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device.

DETAILED DESCRIPTION OF THE INVENTION

Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings.

Overall Configuration of Uninterruptible Power Supply Device

An overall configuration of an uninterruptible power supply device (uninterruptible power supply (UPS) or power conditioning system (PCS))100according to one embodiment of the present invention will be described with reference toFIGS.1to3.

In the present embodiment, the uninterruptible power supply device100includes a plurality of power conversion modules (power conversion modules11,12,21, and22) as shown inFIG.1. The power conversion modules11,12,21, and22are configured to convert power fed from an outside of the device. The power conversion modules11,12,21, and22are power conversion modules having the same standard. It should be noted that the power conversion modules11and12are examples of a “first power conversion module” in the scope of claims, and the power conversion modules21and22are examples of a “second power conversion module” in the scope of claims. In addition, the power conversion modules11,12,21, and22are examples of a “plurality of power conversion modules” in the scope of claims.

In addition, the power conversion modules11and12are disposed on one side (Y1 direction side) in a front-rear direction (Y direction) with respect to the power conversion modules21and22. Moreover, in the uninterruptible power supply device100, a back side of the power conversion module11and a back side of the power conversion module21are disposed to face each other in the Y direction. In addition, in the uninterruptible power supply device100, a back side of the power conversion module12and a back side of the power conversion module22are disposed to face each other in the Y direction. It should be noted that the back side is a side opposite to a direction (front side) in which an operator can access the devices inside the module.

In addition, the uninterruptible power supply device100includes a control module30that is disposed adjacent to the power conversion modules11,12,21, and22in a left-right direction (X direction), and controls the power conversion of the power conversion modules11,12,21, and22. The control module30is a module that controls the power conversion of the entire uninterruptible power supply device100by controlling the power conversion of each of the power conversion modules11,12,21, and22. It should be noted that the control module30is an example of a “control module for an uninterruptible power supply device” in the scope of claims.

In addition, the uninterruptible power supply device100includes an input module40that is disposed on one side (X1 direction side) in the left-right direction with respect to the control module30, and inputs AC power fed from an AC power supply201(seeFIG.2) external to the device to the control module30. That is, the control module30is disposed on the left side of the input module40as viewed from the Y1 direction side.

In addition, the power conversion modules11,12,21, and22are disposed on the other side (X2 direction side) in the left-right direction with respect to the control module30. That is, the control module30is disposed on the right side of the power conversion modules11,12,21, and22as viewed from the Y1 direction side, and the control module30is disposed between the power conversion modules11,12,21, and22in the left-right direction (X direction) and the input module40. In addition, in the present embodiment, a width W1in the left-right direction (X direction) of the control module30is smaller than each of widths W2, W3, W4, and W5in the left-right direction of the power conversion modules11,12,21, and22. In addition, in the present embodiment, the width W1in the left-right direction (X direction) of the control module30is smaller than a width W6in the left-right direction of the input module40.

Moreover, the uninterruptible power supply device100includes an output module50that is disposed on the other side (X2 direction side) in the left-right direction with respect to the power conversion modules11,12,21, and22, and outputs the power converted by each of the power conversion modules11,12,21, and22to a load203(seeFIG.2) external to the device. In addition, in the present embodiment, the width W1in the left-right direction (X direction) of the control module30is smaller than a width W7in the left-right direction of the output module50.

In the present embodiment, the input module40, the control module30, the power conversion module11(power conversion module21), the power conversion module12(power conversion module22), and the output module50are disposed in this order from the X1 direction side.

In addition, the control module30also includes a housing30athat accommodates a thyristor unit31and a control unit32(seeFIG.2), which will be described below. In addition, as shown inFIG.1, an intake unit A1that takes air into the housing30ais provided on the Y1 direction side of the housing30aof the control module30. Moreover, an exhaust unit A2that exhausts air from the inside of the housing30ais provided on an upper surface (surface on the Z1 direction side) of the housing30aof the control module30. The intake unit A1and the exhaust unit A2include holes, such as slit holes provided in the housing30a.

In addition, the control module30also includes a bus duct61that is provided on the upper portion of the housing30aand is electrically connected to a battery202(seeFIG.2) external to the device. In addition, the bus duct61accommodates a conductor wiring, such as copper, and an insulating material that supports or coats the conductor wiring in a metal duct. It should be noted that the bus duct61is an example of a “battery connection unit” in the scope of claims.

In addition, the power conversion modules11,12,21, and22include a power conversion unit1that converts the power fed from the AC power supply201or the battery202external to the device and feeds (outputs) the converted power to the load203external to the device, as shown inFIG.2.

The power conversion unit1includes a rectifier circuit, an inverter circuit, and a chopper circuit. The rectifier circuit has a function of converting the AC power input to the power conversion unit1into DC power. The chopper circuit is configured as a 3-level chopper circuit, for example. The chopper circuit has a function of transforming and outputting a voltage input from the battery202external to the device. The DC power input from the battery202is input to the chopper circuit through a conductor, a capacitor, and a DC reactor (not shown). In addition, the inverter circuit has a function of converting the DC power input from the rectifier circuit and the chopper circuit into the AC power.

In addition, the uninterruptible power supply device100is configured to convert the power from the AC power supply201or the battery202, which is input to the input module40disposed on one side (X1 direction side) in the left-right direction by the power conversion unit1of each of the power conversion modules11,12,21, and22. Moreover, the uninterruptible power supply device100is configured to feed the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22to the load203external to the device by outputting the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22to the output module50disposed on the other side (X2 direction side) in the left-right direction.

Current Path of Uninterruptible Power Supply Device

In addition, in the present embodiment, the uninterruptible power supply device100includes an AC input path I, a DC current path D, an AC output path O, and a bypass current path B, as shown inFIG.2.

The AC input path I is a current path provided between the AC power supply201external to the device and the power conversion unit1of each of the power conversion modules11,12,21, and22. The AC input path I is formed from the input module40to the control module30and the power conversion modules11and12, and is formed from the input module40to the control module30and the power conversion modules21and22. The power (AC power) received from the AC power supply201external to the device is input to the power conversion unit1of each of the power conversion modules11,12,21, and22through the AC input path I. It should be noted that, although not shown inFIG.2, a plurality (three) of AC input paths I is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the AC power supply201external to the device.

In addition, the DC current path D is a current path provided between the battery202external to the device and the power conversion unit1of each of the power conversion modules11,12,21, and22. The DC current path D is formed from the control module30to the power conversion modules11and12, and is formed from the control module30to the power conversion modules21and22. The DC current path D is a current path for feeding the power from the battery202external to the device to the power conversion unit1when the supply of the AC power from the AC power supply201external to the device is stopped. The power (DC power) received from the battery202external to the device is input to the power conversion unit1of each of the power conversion modules11,12,21, and22through the DC current path D. In addition, the DC current path D is a current path for feeding the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22to the battery202external to the device when the AC power is fed to the power conversion unit1from the AC power supply201external to the device. It should be noted that, although not shown inFIG.2, a plurality (two) of DC current paths D is provided corresponding to the phases (P phase and N phase) of the DC power fed from the battery202external to the device.

In addition, the AC output path O is a current path provided between the power conversion unit1of each of the power conversion modules11,12,21, and22and the load203external to the device. The AC output path O is formed from the power conversion module11to the power conversion module12and the output module50, and is formed from the power conversion module21to the power conversion module22and the output module50. The power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22is output from the output module50to the load203external to the device through the AC output path O. It should be noted that, although not shown inFIG.2, a plurality (three) of AC output paths O is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power converted by the power conversion unit1.

In addition, the bypass current path B is a current path for outputting the AC power to the load203external to the device without passing through the power conversion unit1. Specifically, the bypass current path B is a current path for outputting the AC power fed from a bypass feeding AC power supply204external to the device to the load203external to the device without passing through the power conversion unit1. In the uninterruptible power supply device100, the bypass current path B (bypass circuit) is formed from the input module40to the control module30, as shown inFIG.2. The bypass current path B electrically connects the bypass feeding AC power supply204external to the device and the AC output path O. The bypass current path B is a current path for outputting the power from the bypass feeding AC power supply204external to the device to the load203external to the device through the AC output path O. The bypass current path B is a current path used for maintenance of the power conversion modules11,12,21, and22. It should be noted that, although not shown inFIG.2, a plurality (three) of bypass current paths B is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the bypass feeding AC power supply204external to the device. With the configuration described above, the uninterruptible power supply device100is configured to output the power received from the bypass feeding AC power supply204external to the device to the output module50(load203external to the device) through the bypass current path B and the AC output path O.

Moreover, the control module30includes the thyristor unit31including a thyristor31aprovided in the bypass current path B for outputting the AC power to the load203external to the device without passing through the power conversion unit1, and the control unit32that controls the power conversion of the power conversion modules11,12,21, and22.

In addition, the thyristor unit31includes a plurality (three) of thyristors31acorresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the bypass feeding AC power supply204external to the device (external to the uninterruptible power supply device100).

In addition, the control module30also includes a circuit breaker33. As shown inFIG.2, the circuit breaker33is provided in the current path between the thyristor unit31and the power conversion unit1and configured to cut off the power output from the power conversion unit1. Specifically, the circuit breaker33is provided between the AC output path O connected to the bypass current path B and the thyristor unit31in the control module30. The circuit breaker33is configured to switch between a state in which the AC output path O side of the circuit breaker33and the thyristor unit31side of the circuit breaker33are electrically connected and a state in which the AC output path O side of the circuit breaker33and the thyristor unit31side of the circuit breaker33are electrically disconnected.

In addition, as shown inFIG.2, the thyristor unit31and the control unit32are provided in common to the power conversion modules11,12,21, and22.

In addition, the input module40and the output module50are provided in common to each of power conversion modules11,12,21, and22.

The input module40is electrically connected to the AC power supply201external to the device and the bypass feeding AC power supply204external to the device. It should be noted that the AC power supply201and the bypass feeding AC power supply204may be the same AC power supply. Moreover, the input module40is configured to input the power received from the AC power supply201external to the device to the power conversion unit1of each of the power conversion modules11,12,21, and22. That is, the power conversion unit1of each of the power conversion modules11,12,21, and22is electrically connected to the AC power supply201external to the device through the input module40. In addition, the input module40is configured to input the power received from the bypass feeding AC power supply204external to the device to a plurality (three) of thyristors31acorresponding to the phases (U phase, V phase, and W phase) of the power received from the bypass feeding AC power supply204external to the device. That is, the control module30is electrically connected to the bypass feeding AC power supply204external to the device through the input module40.

In addition, the output module50is electrically connected to the power conversion unit1of each of the power conversion modules11,12,21, and22and the load203external to the device. The output module50is configured to output the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22to the load203external to the device.

In addition, the output module50may be configured to receive the input of the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22, and may be configured to branch the power to the load203external to the device. For example, a configuration may be adopted in which a plurality of loads203is connected to the output module50, and the input power is branched according to each of the connected plurality of loads203.

Moreover, as shown inFIG.3, the power conversion modules11and12are disposed on one side (Y1 direction side) in the front-rear direction in which thyristor unit31is disposed. In addition, the power conversion modules21and22are disposed on the other side (Y2 direction side) in the front-rear direction in which the control unit32is disposed. In addition, each current path (AC input path I, AC output path O, and DC current path D) in the power conversion modules11and12is provided on one side (Y1 direction side) in the front-rear direction in the power conversion modules11and12. Moreover, each current path (AC input path I, AC output path O, and DC current path D) in the power conversion modules21and22is provided on the other side (Y2 direction side) in the front-rear direction in the power conversion modules21and22. That is, each current path (AC input path I, AC output path O and DC current path D) in the power conversion modules11,12,21, and22is provided on the front side of each module.

Configuration of Control Module

As shown inFIG.4, the thyristor unit31and the control unit32are arranged in the front-rear direction (Y direction) intersecting the left-right direction (X direction) in the housing30aof the control module30. In addition, as shown inFIG.4, the thyristor unit31and the control unit32are disposed in the housing30aof the control module30to overlap each other as viewed from the front-rear direction (Y1 direction side or Y2 direction side).

In addition, the exhaust unit A2provided on the upper surface (surface on the Z1 direction side) of the housing30aof the control module30is provided between the thyristor unit31and the control unit32in the front-rear direction (Y direction). In addition, the exhaust unit A2is provided between the thyristor unit31and the bus duct61in the front-rear direction (Y direction). In addition, in the present embodiment, the bus duct61is provided on one side (X1 direction side) in the left-right direction with respect to the control module30. Moreover, the control unit32is disposed on the other side (X2 direction side) in the left-right direction with respect to the bus duct61.

In addition, the housing30aof the control module30accommodates the thyristor unit31, the control unit32, and the circuit breaker33, as shown inFIG.5. Moreover, the control module30includes a fan unit34provided on one side (Y1 direction side) in the front-rear direction of the thyristor unit31in the housing30a. The fan unit34includes a plurality of fans F for blowing air taken in from the outside of the housing30ato the thyristor unit31(thyristor31a) through the air intake unit A1(seeFIG.1). The air blown by the plurality of fans F is exhausted from the exhaust unit A2provided in the upper portion (Z1 direction) of the housing30a. In addition, two fans F are provided for each of the plurality (three) of thyristors31a(seeFIGS.5and6) of the thyristor unit31. That is, six fans F are provided.

Moreover, in the thyristor unit31, as shown inFIG.6, a plurality (three) of thyristors31ais arranged in an up-down direction. In addition, the thyristor unit31is disposed on one side (Y1 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30, as shown inFIG.6. In addition, the control unit32is disposed on the other side (Y2 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30.

In addition, the control unit32includes a control board (circuit board) on which a central processing unit (CPU), a read only memory (ROM), or a random access memory (RAM) is mounted. In addition, the control unit32includes a control board for controlling the driving of the fan F of the fan unit34, in addition to a control board for controlling the power conversion of each of the power conversion modules11,12,21, and22.

In addition, the control module30is provided with a DC wiring6(seeFIGS.5and6) that is electrically connected to the power conversion unit1of each of the power conversion modules11,12,21, and22and the battery202external to the device. The DC wiring6is wiring that forms the DC current path D in the control module30. That is, a plurality (two) of DC wirings6is provided corresponding to the phases (P phase and N phase) of the DC power fed from the battery202external to the device. The DC wiring6includes a conductor wiring having a plate shape. For example, the DC wiring6is formed by a plurality of interconnected copper bars.

Moreover, the bus duct61provided in the upper portion of the housing30aof the control module30is configured to electrically connect the battery202(seeFIG.2) external to the device and the DC wiring6. In addition, as described above, the bus duct61accommodates a conductor wiring, such as copper, and an insulating material that supports or coats the conductor wiring in a metal duct. Moreover, the DC wiring6is connected to the conductor wiring of the bus duct61that is electrically connected to the battery202external to the device. In addition, the bus duct61is provided for each of the plurality (two) of DC wirings6. That is, a plurality (two) of bus duct61is provided corresponding to the phases (P phase and N phase) of the DC power fed from the battery202external to the device. It should be noted that the plurality (two) of bus ducts61may be provided as in the present embodiment, or may be connected to each wiring conductor as one conductor of a two-wiring type.

In addition, the control module30is provided with an AC input wiring7that is electrically connected to the power conversion unit1of each of the power conversion modules11,12,21, and22and the AC power supply201external to the device. The AC input wiring7(seeFIGS.5and6) is a wiring that forms s the AC input path I in the control module30. That is, a plurality (three) of AC input wirings7is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the AC power supply201external to the device. The AC input wiring7includes a conductor wiring having a plate shape. For example, the AC input wiring7is configured by a plurality of interconnected copper bars.

In addition, the AC input wiring7includes a connection unit71(seeFIGS.5and6) that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40(seeFIG.2). It should be noted that the connection unit71is an example of a “AC input connection unit” in the scope of claims. The connection unit71is provided for each of the plurality (three) of the AC input wirings7. That is, a plurality (three) of connection units71is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the AC power supply201external to the device.

In addition, as shown inFIGS.5and6, the control module30is provided with a bypass wiring8that is connected to the thyristor31aof the thyristor unit31and forms the bypass current path B. That is, a plurality (three) of bypass wirings8is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from a bypass feeding AC power supply204external to the device. The bypass wiring8includes a conductor wiring having a plate shape. For example, bypass wiring8is formed by a plurality of interconnected copper bars.

In addition, the bypass wiring8includes a connection unit81(seeFIGS.5and6) that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40(seeFIG.2). It should be noted that the connection unit81is an example of a “bypass path connection unit” in the scope of claims. The connection unit81is provided for each of the plurality (three) of bypass wirings8. That is, a plurality (three) of connection units81is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the bypass feeding AC power supply204external to the device. The plurality of connection units81is arranged in the up-down direction (Z direction) corresponding to the thyristor31a.

In addition, as shown inFIG.6, the circuit breaker33is disposed on the upper portion of the thyristor unit31. The circuit breaker33is connected to the bypass wiring8that forms the bypass current path B (seeFIG.2). Moreover, the circuit breaker33is electrically connected to the thyristor31aof the thyristor unit31through the bypass wiring8. In addition, the circuit breaker33is provided in common to the plurality of thyristors31a. Moreover, the plurality of thyristors31aof the thyristor unit31is electrically connected to the wiring of the input module40through the bypass wiring8(connection unit81). In addition, the circuit breaker33is electrically connected to the AC output path O (seeFIG.2) through the bypass wiring8.

In addition, in the control module30, as shown inFIG.6, the bus duct61, the connection unit71, and the connection unit81are provided in this order from above (Z1 direction side) in the housing30a. In addition, the thyristor unit31is disposed below the connection unit71(Z2 direction side). In addition, the thyristor unit31is disposed between the connection unit71and a connection unit62(connection unit63), which will be described below, in the up-down direction (Z direction).

As shown inFIGS.7and8, the DC wiring6includes the connection unit62that is provided on one side (Y1 direction side) in the front-rear direction and is connected to the wiring of the power conversion module11(seeFIG.2). In addition, the DC wiring6includes the connection unit63that is provided on the other side (Y2 direction side) in the front-rear direction and is connected to the wiring of the power conversion module21(seeFIG.2). The connection units62and63are provided for each of the plurality (two) of the DC wirings6. That is, a plurality (two) of connection units62and63is provided corresponding to the phases (P phase and N phase) of the DC power fed from the battery202external to the device.

As shown inFIGS.7and8, the AC input wiring7includes a connection unit72that is provided on one side (Y1 direction side) in the front-rear direction and is connected to the wiring of the power conversion module11(seeFIG.2). In addition, the AC input wiring7includes a connection unit73that is provided on the other side (Y2 direction side) in the front-rear direction and is connected to the wiring of the power conversion module21(seeFIG.2). The connection units72and73are provided for each of the plurality (three) of the AC input wirings7. That is, a plurality (three) of connection units72and73is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the AC power supply201external to the device.

As shown inFIGS.7and8, the bypass wiring8includes a connection unit82that is disposed on one side (Y1 direction side) in the front-rear direction and is connected to the wiring of the power conversion module11(seeFIG.2). In addition, the bypass wiring8includes a connection unit83that is disposed on the other side (Y2 direction side) in the front-rear direction and is connected to the wiring of the power conversion module21(seeFIG.2). The connection units82and83are provided for each of the plurality (three) of bypass wirings8. That is, a plurality (three) of connection units82and83is provided corresponding to the phases (U phase, V phase, and W phase) of the AC power fed from the bypass feeding AC power supply204external to the device.

In the control module30, as shown inFIG.8, the bus duct61, the connection unit72(connection unit73), the connection unit82(connection unit83), and the connection unit62(connection unit63) are provided in this order from above (Z1 direction side) in the housing30a. In addition, the connection unit62is provided on the Y1 direction side with respect to the thyristor unit31. It should be noted that the connection unit72, the connection unit82, and the connection unit62are provided at positions corresponding to the positions of the wirings forming the current paths (AC input path I, AC output path O, and DC current path D) of the power conversion module11, respectively. In addition, the connection unit73, the connection unit83, and the connection unit63are provided at positions corresponding to the positions of the wirings forming the current paths (AC input path I, AC output path O, and DC current path D) of the power conversion module12, respectively.

In addition, the thyristor unit31is disposed between the connection unit82and the connection unit62in the up-down direction (Z direction). In addition, the control unit32is disposed between the connection unit83and the connection unit63in the up-down direction (Z direction).

Effects of Present Embodiment

The following effects can be obtained in the present embodiment.

In the present embodiment, the thyristor unit31and the control unit32are arranged in the front-rear direction (Y direction) intersecting the left-right direction in the housing30aof the control module30. As a result, the width W1in the left-right direction of the control module30can be made smaller than the width in a case in which the thyristor unit31and the control unit32are arranged in the left-right direction (X direction) in the housing30aof the control module30. As a result, it is possible to suppress the increase in the width W1in the left-right direction (X direction) of the control module30forming the uninterruptible power supply device100, and to suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device100.

In addition, in the present embodiment, as described above, the thyristor unit31and the control unit32are disposed in the housing30aof the control module30to overlap each other as viewed from the front-rear direction (Y1 direction side or Y2 direction side). As a result, the width W1in the left-right direction (X direction) of the housing30aof the control module30can be made smaller than the width in a case in which the thyristor unit31and the control unit32do not overlap each other as viewed from the front-rear direction (Y1 direction side or Y2 direction side) in the housing30aof the control module30. As a result, it is possible to easily suppress the increase in the width in the left-right direction (X direction) of the entire uninterruptible power supply device100.

In addition, in the present embodiment, as described above, the thyristor unit31is disposed on one side (Y1 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30. Moreover, the control unit32is disposed on the other side (Y2 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30. As a result, during installation and maintenance of the device, the thyristor unit31can be easily accessed from one side (Y1 direction side) in the front-rear direction, and the control unit32can be easily accessed from the other side (Y2 direction side) in the front-rear direction. As a result, unlike a case in which both the thyristor unit31and the control unit32, which are arranged in the front-rear direction (Y direction), are disposed in the housing30aof the control module30to one side (Y1 direction side) or the other side (Y2 direction side) in the front-rear direction from the center of the housing30a, both the thyristor unit31and the control unit32can be easily accessed during installation and maintenance of the device. As a result, it is possible to improve workability during installation and maintenance of the device.

In addition, in the present embodiment, as described above, the input module40that is disposed on one side (X1 direction side) in the left-right direction with respect to the control module30and inputs AC power fed from the AC power supply201external to the device to the control module30is provided. Moreover, the width W1in the left-right direction (X direction) of the control module30is smaller than the width W6in the left-right direction of the input module40. As a result, the width W1in the left-right direction (X direction) of the control module30can be made smaller than a case in which the width W1in the left-right direction of the control module30is made larger than the width W6in the left-right direction of the input module40, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device100.

In addition, in the present embodiment, as described above, the power conversion modules11,12,21, and22are disposed on the other side (X2 direction side) in the left-right direction with respect to the control module30. Moreover, the thyristor unit31and the control unit32are provided in common to the power conversion modules11,12,21, and22. As a result, the power conversion modules11and12are disposed on one side (Y1 direction side) in the front-rear direction on which the thyristor unit31is disposed, and the power conversion modules21and22are disposed on the other side (Y2 direction side) in the front-rear direction on which the control unit32is disposed, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device100than in a case in which the power conversion modules11,12,21, and22are disposed in a row in the left-right direction (X direction). In addition, the thyristor unit31and the control unit32are provided in common to the power conversion modules11,12,21, and22, so that it is possible to suppress an increase in the number of components and complication of the device configuration than in a case in which the thyristor unit31and the control unit32are provided separately for each of the power conversion modules11,12,21, and22.

In addition, in the present embodiment, as described above, the width W1in the left-right direction (X direction) of the control module30is smaller than each of the widths W2, W3, W4, and W5in the left-right direction of the power conversion modules11,12,21, and22. As a result, the width W1in the left-right direction of the control module30can be made smaller than a case in which the width W1in the left-right direction (X direction) of the control module30is made larger than each of the widths W2, W3, W4, and W5in the left-right direction of the power conversion modules11,12,21, and22, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device100.

In addition, in the present embodiment, the control module30is provided with the bypass wiring8that is connected to the thyristor31aof the thyristor unit31and forms the bypass current path B. Moreover, the bypass wiring8includes the connection unit81that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40. As a result, it is possible to make the width W1in the left-right direction of the control module30smaller than in a case in which the connection unit81is disposed adjacent to the thyristor unit31or the control unit32in the left-right direction (X direction) in the housing30aof the control module30.

In addition, in the present embodiment, as described above, the control module30is provided with the AC input wiring7that is electrically connected to the power conversion unit1of each of the power conversion modules11,12,21, and22and the AC power supply201external to the device. Moreover, the AC input wiring7includes the connection unit71that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40. As a result, it is possible to make the width W1in the left-right direction of the control module30smaller than a case in which the connection unit71is disposed adjacent to the thyristor unit31or the control unit32in the left-right direction (X direction) in the housing30aof the control module30.

In addition, in the present embodiment, as described above, the control module30is provided with the DC wiring6that is electrically connected to the power conversion unit1of each of the power conversion modules11,12,21, and22and the battery202external to the device. Moreover, the control module30includes the bus duct61that is provided in the upper portion of the housing30aand electrically connects the battery202external to the device and the DC wiring6. As a result, the cable or the like connected to the battery202external to the device can be connected to the bus duct61provided on the upper portion of the housing30a. As a result, unlike a case in which the bus duct61is provided on the direction side (X2 direction side) of the control module30to which the power conversion modules11,12,21, and22are adjacent, even in a case in which the battery202external to the device is disposed on the direction side on which the power conversion modules11,12,21, and22are adjacent to the control module30, it is possible to electrically connect the DC wiring6of the control module30and the battery202external to the device from above the housing30awithout passing through the power conversion modules11,12,21, and22. As a result, unlike a case in which the bus duct61is provided on the direction side (X2 direction side) of the control module30to which the power conversion modules11,12,21, and22are adjacent, it is possible to easily perform electrical connection between the DC wiring6of the control module30and the battery202external to the device.

In addition, in the present embodiment, as described above, the output module50that is disposed on the other side (X2 direction side) in the left-right direction with respect to the power conversion modules11,12,21, and22, and outputs the power converted by the power conversion unit1of each of the power conversion modules11,12,21, and22to the load203external to the device is provided. Moreover, the width W1in the left-right direction (X direction) of the control module30is smaller than the width W7in the left-right direction of the output module50. As a result, the width W1in the left-right direction (X direction) of the control module30can be made smaller than a case in which the width W1in the left-right direction of the control module30is made larger than the width W7of the output module50, so that it is possible to further suppress the increase in the width in the left-right direction of the entire uninterruptible power supply device100.

Modification Example

It should be noted that the embodiment disclosed this time is an exemplary example in all respects and is not considered to be restrictive. The scope of the present invention is shown by the scope of claims, not the description of the embodiment, and further includes all changes (modification examples) within the meaning and the scope equivalent to the scope of claims.

For example, in the embodiment described above, the example has been described in which the uninterruptible power supply device100includes four power conversion modules (power conversion modules11,12,21, and22), but the present invention is not limited to this. For example, the uninterruptible power supply device may have a configuration including one or more and three or less power conversion modules, or may have a configuration including five or more power conversion modules.

In addition, in the embodiment described above, the example has been described in which the power conversion modules11and12are disposed on one side (Y1 direction side) in the front-rear direction with respect to the power conversion modules21and22, but the present invention is not limited to this. In the present invention, a plurality of power conversion modules may be arranged in a row. In addition, in the present invention, a plurality of power conversion modules may be arranged in three or more rows.

In addition, in the embodiment described above, the example has been described in which the thyristor unit31is disposed on one side (Y1 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30, and the control unit32is disposed on the other side (Y2 direction side) in the front-rear direction with respect to the center of the housing30aof the control module30, but the present invention is not limited to this. In the present invention, both the thyristor unit and the control unit arranged in the front-rear direction may be disposed to be biased to one side or the other side in the front-rear direction from the center of the housing in the housing of the control module.

In addition, in the embodiment described above, the example has been described in which the width W1in the left-right direction (X direction) of the control module30is smaller than the width W6in the left-right direction of the input module40, but the present invention is not limited to this. In the present invention, the width in the left-right direction of the control module may be larger than the width in the left-right direction of the input module, or may be substantially the same as the width in the left-right direction of the input module.

In addition, in the embodiment described above, the example has been described in which the thyristor unit31and the control unit32are provided in common to the power conversion modules11,12,21, and22, but the present invention is not limited to this. In the present invention, the thyristor unit and the control unit may be provided corresponding to each of the plurality of power conversion modules.

In addition, in the embodiment described above, the example has been described in which the width W1in the left-right direction (X direction) of the control module30is smaller than each of the widths W2, W3, W4, and W5in the left-right direction of the power conversion modules11,12,21, and22, but the present invention is not limited to this. In the present invention, the width in the left-right direction of the control module may be larger than the width in the left-right direction of the power conversion module, or may be substantially the same as the width in the left-right direction of the power conversion module.

In addition, in the embodiment described above, the example has been described in which the bypass wiring8includes the connection unit81(bypass path connection unit) that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40, but the present invention is not limited to this. In the present invention, the bypass path connection unit may be disposed adjacent to the thyristor unit or the control unit in the left-right direction.

In addition, in the embodiment described above, the example has been described in which the AC input wiring7includes the connection unit71(AC input connection unit) that is disposed between the thyristor unit31and the control unit32in the front-rear direction (Y direction), and is connected to the wiring of the input module40, but the present invention is not limited to this. In the present invention, the AC input connection unit may be disposed adjacent to the thyristor unit or the control unit in the left-right direction.

In addition, in the embodiment described above, the example has been described in which the control module30includes the bus duct61(battery connection unit) that is electrically connected to the battery202external to the device, but the present invention is not limited to this. In the present invention, the control module may be electrically connected to the battery external to the device through the input module.

In addition, in the embodiment described above, the example has been described in which the width W1in the left-right direction (X direction) of the control module30is smaller than the width W7in the left-right direction of the output module50, but the present invention is not limited to this. In the present invention, the width in the left-right direction of the control module may be larger than the width in the left-right direction of the output module, or may be substantially the same as the width in the left-right direction of the output module.

In addition, in the embodiment described above, the example has been described in which the input module40and the output module50are separately provided in the uninterruptible power supply device100, but the present invention is not limited to this. In the present invention, the input module and the output module may be integrally formed and one side or the other side in the left-right direction of the uninterruptible power supply device may be configured to perform both the input and output of the power.