Uninterruptible power supply device

Abstract

An uninterruptible power supply device is provided that can prevent the overall width of the uninterruptible power supply device from increasing in the direction in which a plurality of uninterruptible power supply modules and an input module are adjacent to each other. [Solution] This uninterruptible power supply 100 includes an input module 1 provided with a plurality of plate-like conductor wirings 10 including at least a plurality of AC input wirings 11, and uninterruptible power supply modules 20, 30, 40, and 50. Each of the plurality of AC input wirings 11 extends in the X direction in which the uninterruptible power supply modules 20, 30, 40, and 50 and the input module 1 are adjacent to each other, and has an AC input cable attachment portion 11a to which an AC input cable 101a electrically connected to an AC power source 101 outside the device is attached. The AC input cable attachment portions 11a are arranged so as to be spaced apart from each other in the Y direction in which the front side and rear side of the input module 1 face each other.

Description

[Technical Field]

[0001] The present invention relates to an uninterruptible power supply, and more particularly to an uninterruptible power supply including a plurality of uninterruptible power supply modules. [Background technology]

[0002] BACKGROUND ART Conventionally, an uninterruptible power supply device including a plurality of uninterruptible power supply modules has been known. Such an uninterruptible power supply device is disclosed, for example, in Japanese Patent Application Laid-Open No. 2016-144355.

[0003] The above-mentioned Japanese Patent Application Laid-Open No. 2016-144355 discloses an uninterruptible power supply including a plurality of uninterruptible power supply modules. In the uninterruptible power supply described in the above-mentioned Japanese Patent Application Laid-Open No. 2016-144355, the plurality of uninterruptible power supply modules are arranged adjacent to each other. The plurality of uninterruptible power supply modules are connected in parallel between an AC power source external to the device and a load.

[0004] Although not explicitly stated in the above-mentioned Patent Publication No. 2016-144355, in conventional uninterruptible power supply devices such as those described in the above-mentioned Patent Publication No. 2016-144355, an input module (input module) may be provided between the AC power source external to the device and the multiple uninterruptible power supply modules in order to input power received from the AC power source external to the device into the multiple uninterruptible power supply modules. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-144355 Summary of the Invention [Problem to be solved by the invention]

[0006] In a conventional uninterruptible power supply such as that described in JP 2016-144355 A, when an input module is provided, the width of the entire uninterruptible power supply increases in the direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other. Therefore, there is a need for an uninterruptible power supply that can prevent the width of the entire uninterruptible power supply from increasing in the direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other.

[0007] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide an uninterruptible power supply that can prevent the overall width of the uninterruptible power supply from increasing in the direction in which multiple uninterruptible power supply modules and input modules are adjacent to each other. [Means for solving the problem]

[0008] In order to achieve the above object, an uninterruptible power supply according to one aspect of the present invention comprises a plurality of AC input wirings provided corresponding to each phase of power supplied from at least an AC power source external to the apparatus. The line and a plurality of uninterruptible power supply modules, each including a power conversion unit that converts power received from an AC power source external to the device via a plurality of AC input wirings and outputs the converted power to a load external to the device, wherein each of the plurality of AC input wirings extends in a first direction in which the plurality of uninterruptible power supply modules and the input module are adjacent to each other, and has an AC input cable attachment portion to which an AC input cable electrically connected to the AC power source external to the device is attached, and the AC input cable attachment portions are arranged so as to be spaced apart from each other in a second direction in which the front side and back side of the input module face each other.

[0009] Here, the AC input cable mounting portions need to be separated by an air insulation distance to prevent short circuits, but in the uninterruptible power supply according to the above aspect, the AC input cable mounting portions are arranged to be spaced apart from each other in the second direction, which is the direction in which the front side and rear side of the input module face each other. This makes it possible to prevent an increase in the width of the input module in the first direction, unlike when the AC input cable mounting portions are spaced apart from each other in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other. As a result, it is possible to prevent an increase in the width of the entire uninterruptible power supply in the direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other (the first direction).

[0010] In the uninterruptible power supply according to the above aspect, preferably, Input module a plurality of DC input wirings provided corresponding to each phase of the power supplied from a battery external to the device; is established Each of the multiple DC input wirings extends in a first direction and has a DC input cable attachment portion to which a DC input cable electrically connected to a battery external to the device is attached, and the DC input cable attachment portions are arranged to be spaced apart from each other in the second direction. With this configuration, unlike when the DC input cable attachment portions are spaced apart from each other in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other, it is possible to prevent the width of the input module from increasing in the first direction. As a result, it is possible to prevent the width of the entire uninterruptible power supply from increasing in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other.

[0011] In this case, preferably, the DC input cable mounting portion of each of the plurality of DC input wirings is disposed offset in the second direction relative to the AC input cable mounting portion of each of the plurality of AC input wirings. With this configuration, the DC input cable mounting portion is disposed offset in the second direction, which is the direction in which the front side and rear side of the input module face each other, relative to the AC input cable mounting portion, making it easy to mount or remove the DC input cable. As a result, workability during installation and maintenance of the device can be improved.

[0012] In the uninterruptible power supply according to the above aspect, preferably, the AC input cable mounting portions of each of the plurality of AC input wirings are vertically offset relative to the DC input cable mounting portions of each of the plurality of DC input wirings. This configuration allows easier access to the AC input cable mounting portions of each of the plurality of AC input wirings and the DC input cable mounting portions of each of the plurality of DC input wirings from the front side of the input module. This facilitates installation and removal of AC input cables and DC input cables. As a result, the workability during installation and maintenance of the device can be further improved. Furthermore, because the AC input cable mounting portions are vertically offset relative to the DC input cable mounting portions, an increase in the width of the input module in the first direction can be suppressed, unlike when the AC input cable mounting portions are offset in the first direction relative to the DC input cable mounting portions. As a result, an increase in the overall width of the uninterruptible power supply can be suppressed in the first direction in which the plurality of uninterruptible power supply modules and the input module are adjacent to each other.

[0013] The uninterruptible power supply according to the above aspect preferably further comprises a bypass module provided with a plurality of bypass wirings provided corresponding to each phase of power supplied from the bypass power supply AC power supply external to the device, in order to output power from the bypass power supply AC power supply external to the device to a load external to the device without passing through the power conversion unit, Input modulea plurality of bypass input wirings provided corresponding to the plurality of bypass wirings; is established Each of the multiple bypass input wirings extends in a first direction and has a bypass input cable mounting portion to which a bypass input cable electrically connected to a bypass power supply AC power source external to the device is attached, and the bypass input cable mounting portions are arranged to be spaced apart from each other in the second direction. This configuration makes it possible to prevent an increase in the width of the input module in the first direction, unlike when the bypass input cable mounting portions are spaced apart from each other in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other. As a result, it is possible to prevent an increase in the width of the entire uninterruptible power supply in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other.

[0014] In this case, preferably, the bypass input cable mounting portion of each of the plurality of bypass input wirings is disposed offset in the second direction relative to the DC input cable mounting portion of each of the plurality of DC input wirings. With this configuration, the bypass input cable mounting portion is disposed offset in the second direction, which is the direction in which the front side and rear side of the input module face each other, relative to the DC input cable mounting portion, making it easy to mount or remove the bypass input cable. As a result, workability during installation and maintenance of the device can be improved.

[0015] In the uninterruptible power supply according to the above aspect, the DC input cable mounting portions of the plurality of DC input wirings are preferably arranged so as to be offset from one another in the vertical direction. This configuration allows easy access to each of the DC input cable mounting portions from the front side of the input module. Therefore, the DC input cables can be more easily attached and detached. As a result, the workability during installation and maintenance of the device can be improved. Furthermore, because the DC input cable mounting portions of the plurality of DC input wirings are arranged so as to be offset from one another in the vertical direction, an increase in the width of the input module in the first direction can be suppressed, unlike when the DC input cable mounting portions are arranged so as to be offset from one another in the first direction. As a result, an increase in the overall width of the uninterruptible power supply can be suppressed in the first direction in which the plurality of uninterruptible power supply modules and the input module are adjacent to each other.

[0016] In the uninterruptible power supply according to the above aspect, the plurality of uninterruptible power supply modules preferably include a plurality of first uninterruptible power supply modules arranged on one side of the input module in the first direction and a plurality of second uninterruptible power supply modules arranged on the other side of the input module in the first direction, the plurality of AC input wirings are electrically connected to a first power conversion unit that is a power conversion unit of each of the plurality of first uninterruptible power supply modules and a second power conversion unit that is a power conversion unit of each of the plurality of second uninterruptible power supply modules, and power from an AC power source external to the device is input to each of the first power conversion unit and the second power conversion unit via an AC input cable attachment that extends from the one side to the other side of each of the plurality of AC input wirings. With this configuration, power from the AC power source external to the device can be easily supplied (input) to either of the power conversion units (first power conversion unit and second power conversion unit) of the uninterruptible power supply modules arranged on one side or the other side of the input module in the first direction by passing through the AC input cable attachment that extends from the one side to the other side of each of the plurality of AC input wirings. As a result, whether an uninterruptible power supply module is placed on one side or the other side of the input module in the first direction, power can be easily supplied (input) from an AC power source external to the device to the power conversion unit of the placed uninterruptible power supply module. Here, when multiple uninterruptible power supply modules are connected in parallel between an external AC power supply and a load, power from the external AC power supply is supplied to the power conversion units of the multiple uninterruptible power supply modules via a common AC input wiring (bus). Therefore, the AC input bus becomes large to carry large power. In contrast, with the above-described configuration, the present invention places multiple first uninterruptible power supply modules on one side of the input module in the first direction, and multiple second uninterruptible power supply modules on the other side of the input module in the first direction. This allows power from an external AC power source to be divided between the AC input bus on one side of the input module in the first direction and the AC input bus on the other side.As a result, it is possible to prevent the size of the AC input bus for each of the multiple uninterruptible power supply modules from increasing, compared to when multiple uninterruptible power supply modules are arranged on only one side or the other side of the input module.

[0017] In this case, preferably, the plurality of DC input wirings are electrically connected to the first power conversion unit of each of the plurality of first uninterruptible power supply modules and the second power conversion unit of each of the plurality of second uninterruptible power supply modules, and power from a battery external to the device is input to each of the first power conversion unit and the second power conversion unit via a DC input cable attachment extending from the one side to the other side of each of the plurality of DC input wirings. With this configuration, power from the battery external to the device can be easily supplied (input) to either of the power conversion units (the first power conversion unit and the second power conversion unit) of the uninterruptible power supply modules arranged on one side or the other side of the input module in the first direction via the DC input cable attachment extending from the one side to the other side of each of the plurality of DC input wirings. As a result, whether the uninterruptible power supply module is arranged on one side or the other side of the input module, power from the battery external to the device can be easily supplied (input) to the power conversion unit of the arranged uninterruptible power supply module.

[0018] In the uninterruptible power supply according to the above aspect, preferably, a plurality of bypass modules are provided, the plurality of bypass modules including a first bypass module disposed between the input module and the plurality of first uninterruptible power supply modules and a second bypass module disposed between the input module and the plurality of second uninterruptible power supply modules, the plurality of bypass input wirings are electrically connected to a plurality of first bypass wirings as the plurality of bypass wirings of the first bypass module and a plurality of second bypass wirings as the plurality of bypass wirings of the second bypass module, and power from a bypass power supply feed AC power source external to the device is input to each of the plurality of first bypass wirings and the plurality of second bypass wirings via a bypass input cable attachment portion extending from the one side to the other side of each of the plurality of bypass input wirings. With this configuration, power can be easily supplied (input) from the bypass power supply feed AC power source external to the device to either the plurality of bypass wirings (the plurality of first bypass wirings and the plurality of second bypass wirings) of the first bypass module disposed on one side of the input module in the first direction or the second bypass module disposed on the other side of the input module in the first direction, via the bypass input cable attachment portion extending from the one side to the other side of each of the plurality of bypass input wirings. As a result, whether the bypass module is disposed on one side or the other side of the input module, power can be easily supplied (input) to the disposed bypass module from a bypass power supply AC power source external to the device.

[0019] In this case, preferably, Input module a plurality of AC output wirings provided corresponding to each phase of the power converted and output by the one power conversion unit and the other power conversion unit; is establishedEach of the multiple AC output wirings extends in a first direction and has an output cable attachment portion to which an output cable electrically connected to a load external to the device is attached, and the output cable attachment portions of the multiple AC output wirings are arranged to be spaced apart from each other in the second direction. With this configuration, it is possible to prevent the width of the input module from increasing in the first direction compared to when the output cable attachment portions are spaced apart from each other in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other. As a result, it is possible to prevent the width of the entire uninterruptible power supply from increasing in the first direction in which the multiple uninterruptible power supply modules and the input module are adjacent to each other.

[0020] In the above-described configuration in which the plurality of plate-like conductor wirings includes a plurality of AC output wirings, the output cable mounting portion of each of the plurality of AC output wirings is preferably disposed offset in the second direction relative to the AC input cable mounting portion of each of the plurality of AC input wirings and the bypass input cable mounting portion of each of the plurality of bypass input wirings. With this configuration, the output cable mounting portion is disposed offset in the second direction, which is the direction in which the front side and rear side of the input module face each other, relative to the AC input cable mounting portion and the bypass input cable mounting portion, making it easy to attach and detach the output cable. As a result, workability during installation and maintenance of the device can be improved. [Effects of the Invention]

[0021] According to the present invention, as described above, it is possible to provide an uninterruptible power supply that can prevent the overall width of the uninterruptible power supply from increasing in the direction in which multiple uninterruptible power supply modules and the input module are adjacent to each other. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a perspective view showing an uninterruptible power supply according to a first embodiment of the present invention. [Figure 2] 1 is a schematic diagram for explaining the configuration of an uninterruptible power supply according to a first embodiment. [Figure 3] FIG. 1 is a first perspective view showing the configuration of a plurality of plate-shaped conductor wirings inside the input module according to the first embodiment. [Figure 4] 4 is a second perspective view showing the configuration of a plurality of plate-shaped conductor wirings inside the input module according to the first embodiment. FIG. [Figure 5] FIG. 2 is a front view showing the attachment of cables inside the input module according to the first embodiment. [Figure 6] FIG. 7 is a cross-sectional view taken along line 700-700 in FIG. 5. [Figure 7] 4 is a cross-sectional view for explaining the configuration of an AC input cable attachment portion, an output cable attachment portion, a DC input cable attachment portion, and a bypass input cable attachment portion. FIG. [Figure 8] 3 is a front view showing the configuration of a plurality of plate-shaped conductor wirings inside the input module according to the first embodiment. FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line 900-900 in FIG. 8. [Figure 10] FIG. 6 is a cross-sectional view taken along line 800-800 in FIG. 5. [Figure 11] 4 is a diagram illustrating the arrangement of an output cable attachment portion and a DC input cable attachment portion when the inside of the input module according to the first embodiment of the present invention is viewed from above. FIG. [Figure 12] FIG. 10 is a perspective view showing an uninterruptible power supply according to a second embodiment of the present invention. [Figure 13] FIG. 10 is a schematic diagram for explaining the configuration of an uninterruptible power supply according to a second embodiment. [Figure 14] 10 is a perspective view showing the configuration of a plurality of plate-shaped conductor wirings of an input module arranged on the Y1 direction side of the input module according to the second embodiment. FIG. [Figure 15] 10 is a perspective view showing the configuration of a plurality of plate-shaped conductor wirings of an input module arranged on the Y2 direction side of the input module according to the second embodiment. FIG. [Figure 16] FIG. 10 is a perspective view showing an uninterruptible power supply according to a third embodiment of the present invention. [Figure 17]FIG. 10 is a schematic diagram for explaining the configuration of an uninterruptible power supply according to a third embodiment. [Figure 18] FIG. 11 is a perspective view showing the configuration of a plurality of plate-shaped conductor wirings inside the input module according to the third embodiment. [Figure 19] FIG. 10 is a front view showing the configuration of a plurality of AC output wirings inside the input module according to the first modified example. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] [First embodiment] The overall configuration of an uninterruptible power supply (UPS: Uninterruptible Power Supply, or PCS: Power Conditioning System) 100 according to a first embodiment of the present invention will be described with reference to FIGS.

[0025] (Overall configuration of uninterruptible power supply) The uninterruptible power supply 100 includes an input module 1 and uninterruptible power supply modules 2, 3, 4, and 5. The uninterruptible power supply modules 2 to 5 are an example of the "plurality of uninterruptible power supply modules" in the claims. In the first embodiment, the uninterruptible power supply 100 also includes bypass modules 6 and 7. The bypass modules 6 and 7 are an example of the "plurality of bypass modules" in the claims.

[0026] 1, in the uninterruptible power supply 100 according to the first embodiment, from the X2 direction side in the X direction, an uninterruptible power supply module 5, an uninterruptible power supply module 4, a bypass module 7, an input module 1, a bypass module 6, an uninterruptible power supply module 2, and an uninterruptible power supply module 3 are arranged in this order. The X direction is an example of the "first direction" in the claims.

[0027] As shown in Fig. 1, uninterruptible power supply modules 2 and 3 are arranged on the X1 direction side (one side) of input module 1. Note that uninterruptible power supply modules 2 and 3 are an example of "multiple one-side uninterruptible power supply modules" in the claims.

[0028] As shown in Fig. 1, uninterruptible power supply modules 4 and 5 are arranged on the X2 direction side (other side) of input module 1. Note that uninterruptible power supply modules 4 and 5 are an example of "multiple other uninterruptible power supply modules" in the claims.

[0029] 1, the bypass module 6 is disposed between the input module 1 and the uninterruptible power supply module 2 (uninterruptible power supply module 3). The bypass module 6 is an example of the "one-side bypass module" in the claims.

[0030] 1, the bypass module 7 is disposed between the input module 1 and the uninterruptible power supply module 4 (uninterruptible power supply module 5). The bypass module 7 is an example of the "other bypass module" in the claims.

[0031] As shown in FIG. 2, each of the uninterruptible power supply modules 2, 3, 4, and 5 includes a power conversion unit 20, 30, 40, and 50, respectively. The power conversion units 20, 30, 40, and 50 are configured to convert power received from an external AC power source 101 (see FIG. 2) via multiple AC input wirings 11, and output the converted power to an external load 102 (see FIG. 2). The power conversion units 20 and 30 are an example of a "first power conversion unit" in the claims. The power conversion units 40 and 50 are an example of a "second power conversion unit" in the claims. A plurality of loads 102 may be provided for the uninterruptible power supply 100.

[0032] The power conversion units 20, 30, 40, and 50 are configured to convert power received from an external AC power source 101. Each of the power conversion units 20, 30, 40, and 50 includes a rectifier circuit, an inverter circuit, and a chopper circuit. The rectifier circuit converts AC power input to each of the power conversion units 20, 30, 40, and 50 into DC power. The chopper circuit is configured, for example, as a three-level chopper circuit. The chopper circuit transforms and outputs a voltage input from an external battery 103. The DC power input from the battery 103 is input to the chopper circuit via a conductor, a capacitor, and a DC reactor (not shown). The inverter circuit converts the DC power input from the rectifier circuit and the chopper circuit into AC power.

[0033] As shown in Fig. 2, the bypass module 6 is provided with a plurality of bypass wirings 64. Also, as shown in Fig. 2, the bypass module 7 is provided with a plurality of bypass wirings 74. The plurality of bypass wirings 64 and 74 are provided to output power from a bypass power supply AC power supply 104 (see Fig. 2) outside the device to a load 102 (see Fig. 2) outside the device without passing through the power conversion units (power conversion units 20, 30, 40, and 50) during maintenance, etc. The plurality of bypass wirings 64 and 74 are provided corresponding to each phase of power supplied from the bypass power supply AC power supply 104. Three bypass wirings 64 and 74 are provided for each phase (U phase, V phase, and W phase) of power supplied from the bypass power supply AC power supply 104.

[0034] As shown in Fig. 2, the bypass module 6 includes a control unit 60. The control unit 60 includes a control board (circuit board) on which a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. are mounted. The control unit 60 is configured to control the power conversion of the entire uninterruptible power supply 100 (power conversion units 20, 30, 40, and 50). In other words, the bypass module 6 is a control module equipped with a plurality of bypass wirings 64 (bypass circuits).

[0035] The input module 1 is provided with a plurality of plate-like conductor wirings 10 (see FIGS. 3 and 4). The plurality of plate-like conductor wirings 10 includes metal plates such as copper bars. In the first embodiment, the plurality of plate-like conductor wirings 10 includes a plurality of AC input wirings 11, a plurality of AC output wirings 12, a plurality of DC input wirings 13, and a plurality of bypass input wirings 14.

[0036] As shown in Figure 2, the multiple AC input wirings 11 are electrically connected to the power conversion unit 20 of the uninterruptible power supply module 2, the power conversion unit 30 of the uninterruptible power supply module 3, the power conversion unit 40 of the uninterruptible power supply module 4, and the power conversion unit 50 of the uninterruptible power supply module 5.

[0037] Three AC input wirings 11 are provided corresponding to the three phases (U phase, V phase, and W phase) of the power supplied from an AC power supply 101 external to the device.

[0038] Furthermore, the AC output wiring 12 provided on the uninterruptible power supply module 2 side (X1 direction side) is electrically connected to the power conversion units 20 and 30 of the uninterruptible power supply modules 2 and 3, respectively (see FIG. 2). The AC output wiring 12 provided on the uninterruptible power supply module 4 side (X2 direction side) is electrically connected to the power conversion units 40 and 50 of the uninterruptible power supply modules 4 and 5, respectively (see FIG. 2).

[0039] Three AC output wirings 12 (see FIG. 3) are provided on the uninterruptible power supply module 2 side (X1 direction side) corresponding to the respective phases (U phase, V phase, and W phase) of the power converted and output by the power conversion units 20 and 30. Three AC output wirings 12 (see FIG. 4) are provided on the uninterruptible power supply module 4 side (X2 direction side) corresponding to the respective phases (U phase, V phase, and W phase) of the power converted and output by the power conversion units 40 and 50. That is, a total of six AC output wirings 12 are provided: three on the side of the input module 1 where the uninterruptible power supply module 2 is arranged (X1 direction side) and three on the side of the input module 1 where the uninterruptible power supply module 4 is arranged (X2 direction side).

[0040] In addition, as shown in Figure 2, the multiple DC input wirings 13 are electrically connected to the power conversion unit 20 of the uninterruptible power supply module 2, the power conversion unit 30 of the uninterruptible power supply module 3, the power conversion unit 40 of the uninterruptible power supply module 4, and the power conversion unit 50 of the uninterruptible power supply module 5.

[0041] Two DC input wirings 13 are provided corresponding to the respective phases (P phase and N phase) of the power supplied from a battery 103 external to the device.

[0042] 2, the multiple bypass input wirings 14 are electrically connected to multiple bypass wirings 64 of the bypass module 6 and multiple bypass wirings 74 of the bypass module 7. The multiple bypass wirings 64 and 74 are an example of "multiple bypass wirings" in the claims. The multiple bypass wirings 64 are an example of "multiple one-way bypass wirings" in the claims. The multiple bypass wirings 74 are an example of "multiple other-way bypass wirings" in the claims. The multiple bypass wirings 64 and 74 are wirings including a metal plate such as a copper bar.

[0043] Three bypass input wirings 14 are provided corresponding to the bypass wirings 64 (bypass wirings 74). That is, three bypass input wirings 14 are provided corresponding to the respective phases (U phase, V phase, and W phase) of the power supplied from the bypass power supply AC power supply 104.

[0044] 2, uninterruptible power supply module 2, uninterruptible power supply module 3, uninterruptible power supply module 4, uninterruptible power supply module 5, bypass module 6, and bypass module 7 are provided with bus bars 21, 31, 41, 51, 61, and 71, respectively, as bus bars for AC input. Bus bars 21, 31, 41, 51, 61, and 71 are wiring including metal plates such as copper bars.

[0045] Three busbars 21, 31, 41, 51, 61, and 71 are provided for each of the three phases (U phase, V phase, and W phase) of power supplied from an AC power supply 101 external to the device. The busbars 21, 31, 41, and 51 are electrically connected to the power conversion units 20, 30, 40, and 50, respectively, via switches (not shown). In the first embodiment, the busbars for AC input and the AC input wiring 11 are connected in the following order from the X2 direction: busbar 51, busbar 41, busbar 71, AC input wiring 11, busbar 61, busbar 21, and busbar 31.

[0046] 2, uninterruptible power supply module 2, uninterruptible power supply module 3, uninterruptible power supply module 4, uninterruptible power supply module 5, bypass module 6, and bypass module 7 are provided with bus bars 22, 32, 42, 52, 62, and 72, respectively, as bus bars for AC output. Bus bars 22, 32, 42, 52, 62, and 72 are wiring including metal plates such as copper bars.

[0047] Three buses 22, 32, 42, 52, 62, and 72 are provided for each phase (U phase, V phase, and W phase) of the power converted and output by the power conversion units 20, 30, 40, and 50. The buses 22, 32, 42, and 52 are electrically connected to the power conversion units 20, 30, 40, and 50, respectively, via switches (not shown).

[0048] In the first embodiment, on the X2 direction side of the input module 1, the bus bars for AC output and the AC output wiring 12 are connected in the order of bus bar 52, bus bar 42, bus bar 72, and AC output wiring 12 from the X2 direction side. Also, on the X1 direction side of the input module 1, the bus bars for AC output and the AC output wiring 12 are connected in the order of AC output wiring 12, bus bar 62, bus bar 22, and bus bar 32 from the X2 direction side.

[0049] A plurality of bypass wirings 64 and 74 are electrically connected to the bus bars 62 and 72, respectively. The bypass wiring 64 (bypass wiring 74) is provided with a circuit breaker (not shown) on the bus bar 61 (bus bar 71) side and with a reactor (not shown) on the bypass input wiring 14 side.

[0050] 2, uninterruptible power supply module 2, uninterruptible power supply module 3, uninterruptible power supply module 4, uninterruptible power supply module 5, bypass module 6, and bypass module 7 are provided with bus bars 23, 33, 43, 53, 63, and 73, respectively, as bus bars for DC input. Bus bars 23, 33, 43, 53, 63, and 73 are wiring including metal plates such as copper bars.

[0051] Two bus bars 23, 33, 43, 53, 63, and 73 are provided for each phase (P phase and N phase) of the power supplied from the battery 103 outside the device. The bus bars 23, 33, 43, and 53 are electrically connected to the power conversion units 20, 30, 40, and 50, respectively, via switches (not shown).

[0052] In the first embodiment, the busbars for DC input and the DC input wiring 13 are connected in the order of busbar 53, busbar 43, busbar 73, DC input wiring 13, busbar 63, busbar 23, and busbar 33 from the X2 direction side.

[0053] As shown in Figures 3 and 4, the input module 1 is provided with a plurality of plate-shaped conductor wirings 10 that constitute a plurality of AC input wirings 11 that are provided corresponding to each phase of power supplied from at least an AC power source 101 external to the device.

[0054] Each of the plurality of AC input wirings 11 has an AC input cable attachment portion 11a (see FIGS. 3 and 4). As shown in FIGS. 3 and 4, the AC input cable attachment portion 11a is formed to extend in the X direction, and an AC input cable 101a (see FIGS. 5 and 6) electrically connected to an AC power supply 101 outside the device is attached to the AC input cable attachment portion 11a. The X direction is the direction in which the uninterruptible power supply modules 2, 3, 4, and 5 (plurality of uninterruptible power supply modules) and the input module 1 are adjacent to each other, and is an example of the "first direction" in the claims.

[0055] 3 and 4, the AC input cable attachment portions 11a are arranged to be spaced apart from each other in the Y direction, which is the direction in which the front side (Y1 direction) and the back side (Y2 direction) of the input module 1 face each other. The Y direction is an example of the "second direction" in the claims.

[0056] In addition, the multiple AC input wirings 11 have busbar connection portions 11b (see Figures 3 and 4) at their ends in the X direction (X2 direction side and X1 direction side) for connecting the AC input busbars (busbars 61 or busbars 71) of adjacent modules (bypass modules 6 or 7).

[0057] As described above, the multiple AC input wirings 11 are electrically connected to the power conversion units 20, 30, 40, and 50. The uninterruptible power supply 100 is configured so that power from an AC power source 101 external to the device is input to each of the power conversion units 20, 30, 40, and 50 via AC input cable attachment parts 11a extending from one side (X1 direction side) to the other side (X2 direction side) of each of the multiple AC input wirings 11.

[0058] The plurality of plate-like conductor wirings 10 include (constitute) a plurality of AC output wirings 12 (see FIGS. 3 and 4) corresponding to each phase of the power converted and output by the power conversion units 20, 30, 40, and 50. As shown in FIGS. 3 and 4, the plurality of AC output wirings 12 have output cable attachment portions 12a.

[0059] As shown in Figures 3 and 4, the output cable mounting portion 12a is formed to extend in the X direction (first direction), and an output cable 102a (see Figures 5 and 6) that is electrically connected to a load 102 outside the device is mounted thereon.

[0060] As shown in FIGS. 3 and 4, the output cable attachment portions 12a of the plurality of AC output wires 12 are arranged so as to be spaced apart from each other in the Y direction (second direction).

[0061] As shown in FIG. 3, the multiple AC output wirings 12 on the X1 direction side (one side) have busbar connection portions 12b at their ends in the X1 direction for connecting the AC output busbars (busbars 62) of adjacent modules (bypass modules 6).

[0062] As shown in FIG. 4, the multiple AC output wirings 12 on the X2 direction side (other side) have busbar connection portions 12b at their ends in the X2 direction for connecting the AC output busbars (busbars 72) of adjacent modules (bypass modules 7).

[0063] As described above, the AC output wiring 12 (see FIG. 3) provided on the X1 direction side is electrically connected to the power conversion units 20 and 30 of the uninterruptible power supply modules 2 and 3. In addition, the AC output wiring 12 (see FIG. 4) provided on the X2 direction side is electrically connected to the power conversion units 40 and 50 of the uninterruptible power supply modules 4 and 5. The uninterruptible power supply 100 is configured so that the power converted by each of the power conversion units 20, 30, 40, and 50 is output to a load 102 outside the device via the output cable attachment parts 12a of each of the multiple AC output wirings 12.

[0064] The plurality of plate-like conductor wirings 10 also include (constitute) a plurality of DC input wirings 13 (see FIGS. 3 and 4) corresponding to the respective phases of power supplied from a battery 103 external to the device. As shown in FIGS. 3 and 4, the plurality of DC input wirings 13 have DC input cable attachment portions 13a.

[0065] As shown in Figures 3 and 4, the DC input cable attachment portion 13a is formed to extend in the X direction (first direction), and a DC input cable 103a (see Figures 5 and 6) that is electrically connected to a battery 103 outside the device is attached to it.

[0066] As shown in FIGS. 3 and 4, the DC input cable attachment portions 13a are arranged so as to be spaced apart from each other in the Y direction (second direction).

[0067] In addition, the multiple DC input wirings 13 have busbar connection portions 13b (see Figures 3 and 4) at their ends in the X direction (X2 direction side and X1 direction side) for connecting the DC input busbars (busbars 63 or busbars 73) of adjacent modules (bypass modules 6 or 7).

[0068] As described above, the multiple DC input wirings 13 are electrically connected to the power conversion units 20, 30, 40, and 50. The uninterruptible power supply 100 is configured so that power from the battery 103 external to the device is input to each of the power conversion units 20, 30, 40, and 50 via the DC input cable attachment parts 13a extending from one side (X1 direction side) to the other side (X2 direction side) of each of the multiple DC input wirings 13.

[0069] The plurality of plate-like conductor wirings 10 include (constitute) a plurality of bypass input wirings 14 (see FIGS. 3 and 4) corresponding to the plurality of bypass wirings 64 (the plurality of bypass wirings 74). As shown in FIGS. 3 and 4, the plurality of bypass input wirings 14 have a bypass input cable attachment portion 14a.

[0070] As shown in FIGS. 3 and 4, the bypass input cable attachment portion 14a is formed to extend in the X direction (first direction), and a bypass input cable 104a (see FIGS. 5 and 6) electrically connected to a bypass power supply AC power source 104 outside the device is attached to the bypass input cable attachment portion 14a.

[0071] As shown in FIGS. 3 and 4, the bypass input cable attachment portions 14a are arranged so as to be spaced apart from each other in the Y direction (second direction).

[0072] In addition, the multiple bypass input wirings 14 have bypass wiring connection parts 14b (see Figures 3 and 4) at their ends in the X direction (X2 direction side and X1 direction side) for connecting the bypass wirings (bypass wiring 64 or bypass wiring 74) of adjacent bypass modules (bypass module 6 or 7).

[0073] As described above, the multiple bypass input wirings 14 are electrically connected to the power conversion units 20, 30, 40, and 50. The uninterruptible power supply 100 is configured so that power from the bypass power supply AC power supply 104 outside the device is input to each of the multiple bypass wirings 64 and the multiple bypass wirings 74 via the bypass input cable attachment parts 14a that extend from one side (X1 direction side) to the other side (X2 direction side) of each of the multiple bypass input wirings 14.

[0074] The plurality of plate-like conductor wirings 10 also include (constitute) a neutral (N-phase) wiring 15 (see FIGS. 3 and 4). As shown in FIGS. 3 and 4, the neutral wiring 15 has a neutral (N-phase) cable attachment portion 15a. The uninterruptible power supply 100 receives AC power from the external AC power supply 101 via a total of four wires: three AC input wirings 11 (three wires) corresponding to the three phases (U phase, V phase, and W phase) of the power supplied (input) from the external AC power supply 101, and one neutral (N-phase) wiring 15 (one wire). In other words, the uninterruptible power supply 100 uses a three-phase, four-wire system to receive AC power from the AC power supply 101. The neutral wiring 15 is electrically connected to neutral (N-phase) wiring (not shown) provided in the uninterruptible power supply modules 2 to 5 and the bypass modules 6 and 7.

[0075] As shown in Figures 3 and 4, the neutral wire cable mounting portion 15a is formed to fit along the AC input cable mounting portion 11a, and a neutral wire cable 105a (see Figures 5 and 6) electrically connected to a bypass power supply AC power source 104 outside the device is mounted thereon.

[0076] 5 to 7, in the first embodiment, the AC input cable 101a, the output cable 102a, the DC input cable 103a, the bypass input cable 104a, and the neutral cable 105a extend from above (the Z1 direction) to below (the Z2 direction). Also, the AC input cable mounting portion 11a, the output cable mounting portion 12a, the DC input cable mounting portion 13a, the bypass input cable mounting portion 14a, and the neutral cable mounting portion 15a are arranged (formed) so that their respective main surfaces (the surfaces with the largest areas) are aligned in the vertical direction (the Z direction), as shown in FIGS.

[0077] 7, main surfaces F1a, F2a, F3a, F4a, and F5a are formed along the vertical direction (Z direction) on the Y1 direction (front side) of the AC input cable mounting portion 11a, the output cable mounting portion 12a, the DC input cable mounting portion 13a, the bypass input cable mounting portion 14a, and the neutral cable mounting portion 15a, respectively. Also, main surfaces F1b, F2b, F3b, F4b, and F5b are formed along the vertical direction (Z direction) on the Y2 direction (rear side) of the AC input cable mounting portion 11a, the output cable mounting portion 12a, the DC input cable mounting portion 13a, the bypass input cable mounting portion 14a, and the neutral cable mounting portion 15a, respectively.

[0078] The AC input cable mounting portion 11a, the output cable mounting portion 12a, the DC input cable mounting portion 13a, the bypass input cable mounting portion 14a, and the neutral cable mounting portion 15a are connected to the corresponding cables (the AC input cable mounting portion 11a, the output cable mounting portion 12a, the DC input cable mounting portion 13a, the bypass input cable mounting portion 14a, or the neutral cable 105a) by fastening members such as bolts on their respective main surfaces on the Y1 direction side (main surfaces F1a, F2a, F3a, F4a, and F5a) and their main surfaces on the Y2 direction side (main surfaces F1b, F2b, F3b, F4b, and F5b).

[0079] As shown in FIG. 8, the AC input wiring 11, the multiple DC input wirings 13, and the bypass input wiring 14 (AC input cable mounting portion 11a, DC input cable mounting portion 13a, and bypass input cable mounting portion 14a) are formed to extend from the X1 direction side (the bypass module 6 side) to the X2 direction side (the bypass module 7 side). The AC input wiring 11, the DC input wiring 13, and the bypass input wiring 14 are formed to be symmetrical (bilaterally symmetrical) with respect to an axis (the central axis of the input module 1) along the Z direction (the up-down direction). The multiple AC output wirings 12 are formed so that the AC output wiring 12 provided on the X2 direction side and the AC output wiring 12 provided on the X1 direction side are reversed (bilaterally reversed) in the X direction.

[0080] As shown in Figures 8 and 9, inside the input module 1, from the top (Z1 direction side), an AC input cable mounting portion 11a, an output cable mounting portion 12a, a bypass input cable mounting portion 14a, and a DC input cable mounting portion 13a are arranged in this order.

[0081] As shown in FIGS. 8 and 9, the AC input cable attachment portions 11a of the plurality of AC input wires 11 are arranged so as to overlap each other when viewed from the Y direction (second direction).

[0082] 8 and 9, the bypass input cable attachment portions 14a of the plurality of bypass input wirings 14 are arranged to overlap each other when viewed from the Y direction (second direction).

[0083] The DC input cable attachment portions 13a of the multiple DC input wirings 13 are arranged to be offset from one another in the Z direction (vertical direction) as shown in Figures 8 and 9. The Z direction is an example of the "vertical direction" in the claims.

[0084] As shown in Figures 8 and 9, the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 is arranged to be shifted in the Z direction (up and down direction) with respect to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13.

[0085] As shown in FIG. 9, the output cable mounting portion 12a of each of the plurality of AC output wirings 12 is arranged to be shifted in the Y direction (second direction) with respect to the AC input cable mounting portion 11a of each of the plurality of AC input wirings 11 and the bypass input cable mounting portion 14a of each of the plurality of bypass input wirings 14.

[0086] As shown in FIG. 9, the bypass input cable mounting portion 14a of each of the multiple bypass input wirings 14 is arranged to be shifted in the Y direction (second direction) relative to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13.

[0087] As shown in FIG. 9, the DC input cable attachment portion 13a of each of the multiple DC input wirings 13 is arranged to be shifted in the Y direction (second direction) with respect to the AC input cable attachment portion 11a of each of the multiple AC input wirings 11.

[0088] Specifically, the output cable attachment portion 12a and the DC input cable attachment portion 13a are arranged closer to the rear surface of the input module 1 (Y2 direction side) than the AC input cable attachment portion 11a and the bypass input cable attachment portion 14a.

[0089] The AC input cable mounting portions 11a of the plurality of AC input wirings 11 are arranged to be spaced apart by a distance L1 (see FIG. 9). The output cable mounting portions 12a of the plurality of AC output wirings 12 are arranged to be spaced apart by a distance L2 (see FIG. 9). The DC input cable mounting portions 13a are arranged to be spaced apart by a distance L3 (see FIG. 9). The bypass input cable mounting portions 14a are arranged to be spaced apart by a distance L4 (see FIG. 9).

[0090] The distance L1 is longer than the air insulation distance at which the AC input cable attachment portions 11a do not short-circuit each other. The distance L1 is also longer than the diameter D1 (see FIG. 10) of the AC input cable 101a and longer than the distance L5 (see FIG. 8) in the Y direction between the busbar connection portions 11b.

[0091] Distance L2 is longer than the air insulation distance at which the output cable attachment portions 12a do not short-circuit, and is also longer than the diameter D2 (see FIG. 10) of the output cable 102a and the distance L6 (see FIG. 9) in the Y direction between the busbar connection portions 12b.

[0092] The distance L3 is longer than the air insulation distance at which the DC input cable attachment portions 13a do not short-circuit each other. The distance L3 is also longer than the diameter D3 (see FIG. 10) of the DC input cable 103a and longer than the distance L7 (see FIG. 9) in the Y direction between the busbar connection portions 13b.

[0093] Distance L4 is longer than the air insulation distance that prevents short circuits between bypass input cable attachment portions 14a and is also longer than diameter D4 (see FIG. 10) of bypass input cable 104a.

[0094] As shown in Fig. 11, the busbars 21, 31, 41, and 51 of each of the uninterruptible power supply modules 2, 3, 4, and 5 are provided on the front side (Y1 direction side) of each module. Also, the busbars 61 and 71 of each of the bypass modules 6 and 7 are provided on the front side (Y1 direction side) of each module. The other busbars (busbars 22, 23, 32, 33, 42, 43, 52, 53, 62, 63, 72, and 73) and bypass wiring 64 and 74 are also provided on the front side (Y1 direction side) of each module.

[0095] 11, duct sections 2a, 3a, 4a, and 5a are provided on the rear side (Y2 direction side) of each uninterruptible power supply module 2, 3, 4, and 5 as exhaust ducts. Also, as shown in FIG. 11, duct sections 6a and 7a are provided on the rear side (Y2 direction side) of each bypass module 6 and 7 as exhaust ducts.

[0096] As described above, the output cable mounting portion 12a and the DC input cable mounting portion 13a are disposed closer to the rear surface (Y2 direction side) of the input module 1 than the AC input cable mounting portion 11a and the bypass input cable mounting portion 14a. The output cable mounting portion 12a and the DC input cable mounting portion 13a are disposed at positions in the Y direction corresponding to the positions where the duct portions 2a, 3a, 4a, 5a, 6a, and 7a are provided.

[0097] Furthermore, the plurality of AC output wirings 12 are connected to the busbar 62 of the bypass module 6 or the busbar 72 of the bypass module 7 by busbar connection parts 12b on the front side (Y1 direction side) of the input module 1. Therefore, the plurality of AC output wirings 12 are extended from the front side (Y1 direction side) of the input module 1 to the rear side (Y2 direction side) of the input module 1 in order to connect the output cable attachment parts 12a to the output cables 102a on the rear side (Y2 direction side) of the input module 1 (see FIGS. 3 and 4).

[0098] Furthermore, the multiple DC input wirings 13 are connected to the busbar 63 of the bypass module 6 or the busbar 73 of the bypass module 7 by busbar connection parts 13b on the front side (Y1 direction side) of the input module 1. Therefore, the multiple DC input wirings 13 are extended from the front side (Y1 direction side) of the input module 1 to the rear side (Y2 direction side) of the input module 1 in order to connect the DC input cable attachment parts 13a to the DC input cables 103a on the rear side (Y2 direction side) of the input module 1.

[0099] (Effects of the first embodiment) In the first embodiment, the following effects can be obtained.

[0100] The AC input cable mounting portions 11a need to be separated by an air insulation distance to prevent short circuits, but in the first embodiment, the AC input cable mounting portions 11a are arranged so as to be spaced apart from each other in the Y direction, which is the direction in which the front side (Y1 direction side) and the back side (Y2 direction side) of the input module 1 face each other. This makes it possible to prevent the width of the input module 1 from increasing in the X direction, unlike when the AC input cable mounting portions 11a are spaced apart from each other in the X direction in which the uninterruptible power supply modules 2 to 5 and the input module 1 are adjacent to each other. As a result, it is possible to prevent the width of the entire uninterruptible power supply 100 from increasing in the X direction.

[0101] Furthermore, in the first embodiment, as described above, each of the multiple DC input wirings 13 extends in the X direction and has a DC input cable attachment portion 13a to which a DC input cable 103a electrically connected to a battery 103 external to the device is attached. The DC input cable attachment portions 13a are arranged to be spaced apart from each other in the Y direction. This makes it possible to prevent the width of the input module 1 from increasing in the X direction, unlike when the DC input cable attachment portions 13a are spaced apart from each other in the X direction. As a result, it is possible to prevent the width of the entire uninterruptible power supply 100 from increasing in the X direction.

[0102] Furthermore, in the first embodiment, as described above, the DC input cable attachment portion 13a of each of the multiple DC input wirings 13 is disposed offset in the second direction with respect to the AC input cable attachment portion 11a of each of the multiple AC input wirings 11. As a result, the DC input cable attachment portion 13a is disposed offset in the Y direction with respect to the AC input cable attachment portion 11a, which makes it easy to attach or detach the DC input cable 103a. As a result, it is possible to improve the workability during installation and maintenance of the device.

[0103] Furthermore, in the first embodiment, as described above, the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 is disposed offset in the vertical direction (Z direction) relative to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13. This allows easier access to the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 and the DC input cable mounting portion 13a of each of the multiple DC input wirings 13 from the front side (Y1 direction side) of the input module 1. This makes it easier to attach or detach the AC input cable 101a and the DC input cable 103a. As a result, the workability during installation and maintenance of the device can be further improved. Furthermore, because the AC input cable mounting portion 11a is disposed offset in the vertical direction relative to the DC input cable mounting portion 13a, an increase in the width of the input module 1 in the X direction can be suppressed, unlike when the AC input cable mounting portion 11a is disposed offset in the X direction relative to the DC input cable mounting portion 13a. As a result, it is possible to prevent the overall width of the uninterruptible power supply 100 from increasing in the X direction.

[0104] Furthermore, in the first embodiment, as described above, each of the multiple bypass input wirings 14 extends in the X direction and has a bypass input cable attachment portion 14a to which a bypass input cable 104a electrically connected to the bypass power supply AC power supply 104 outside the device is attached. The bypass input cable attachment portions 14a are arranged to be spaced apart from each other in the Y direction. This makes it possible to prevent the width of the input module 1 from increasing in the X direction, unlike when the bypass input cable attachment portions 14a are spaced apart from each other in the X direction. As a result, it is possible to prevent the width of the entire uninterruptible power supply from increasing in the X direction.

[0105] Furthermore, in the first embodiment, as described above, the bypass input cable mounting portion 14a of each of the multiple bypass input wirings 14 is disposed offset in the Y direction with respect to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13. As a result, since the bypass input cable mounting portion 14a is disposed offset in the Y direction with respect to the DC input cable mounting portion 13a, the bypass input cable 104a can be easily attached or detached. As a result, the workability during installation and maintenance of the device can be improved.

[0106] In the first embodiment, as described above, the DC input cable attachment portions 13a of the multiple DC input wirings 13 are arranged to be offset from each other in the vertical direction (Z direction). This allows easy access to each of the DC input cable attachment portions 13a from the front side (Y1 direction side) of the input module 1. This makes it easier to attach or detach the DC input cable 103a. As a result, the workability during installation and maintenance of the device can be further improved. Furthermore, because the DC input cable attachment portions 13a of the multiple DC input wirings 13 are arranged to be offset from each other in the vertical direction, an increase in the width of the input module 1 in the X direction can be suppressed, unlike when the DC input cable attachment portions 13a are arranged to be offset from each other in the X direction. As a result, an increase in the overall width of the uninterruptible power supply 100 in the X direction can be suppressed.

[0107] Furthermore, in the first embodiment, as described above, the multiple AC input wirings 11 are electrically connected to the power conversion units (power conversion units 20, 30, 40, and 50) of each of the uninterruptible power supply modules 2, 3, 4, and 5. Power from an AC power supply 101 external to the device is input to the power conversion units 20, 30, 40, and 50 via AC input cable attachment units 11a extending from the X1 direction side to the X2 direction side of each of the multiple AC input wirings 11. This allows power from the external AC power supply 101 to be easily supplied (input) to any of the power conversion units (power conversion units 20, 30, 40, and 50) of the uninterruptible power supply modules 2 and 3 arranged on the X1 direction side (one side) of the input module 1 and the uninterruptible power supply modules 4 and 5 arranged on the X2 direction side (the other side) via the AC input cable attachment units 11a extending from the X1 direction side to the X2 direction side of each of the multiple AC input wirings 11. As a result, whether an uninterruptible power supply module is arranged on the X1 direction side (one side) or the X2 direction side (the other side) of the input module 1, power can be easily supplied (input) from an external AC power supply 101 to the power conversion unit of the arranged uninterruptible power supply module. Furthermore, uninterruptible power supply modules 2 and 3 are arranged on the X1 direction side (one side) of the input module 1, and uninterruptible power supply modules 4 and 5 are arranged on the X2 direction side (the other side) of the input module 1. This allows power from the external AC power supply 101 to be divided between the AC input busbars 21 and 31 on the X1 direction side (one side) of the input module 1 and the AC input busbars 31 and 51 on the X2 direction side (the other side). As a result, the size of the AC input busbars (busbars 21, 31, 41, and 51) of the uninterruptible power supply modules 2 to 5 can be reduced compared to when the uninterruptible power supply modules 2 to 5 are arranged only on the X1 direction side or the X2 direction side of the input module 1.

[0108] Furthermore, in the first embodiment, as described above, the multiple DC input wirings 13 are electrically connected to the power conversion units (power conversion units 20, 30, 40, and 50) of the uninterruptible power supply modules 2, 3, 4, and 5, and power from the battery 103 external to the device is input to each of the power conversion units 20, 30, 40, and 50 via the DC input cable attachment units 13a extending from the X1 direction side to the X2 direction side of each of the multiple DC input wirings 13. This allows power from the battery 103 external to the device to be easily supplied (input) to the power conversion units (power conversion units 20, 30, 40, and 50) of both the uninterruptible power supply modules 2 and 3 arranged on the X1 direction side (one side) of the input module 1 and the uninterruptible power supply modules 4 and 5 arranged on the X2 direction side (the other side) via the DC input cable attachment units 13a extending from the X1 direction side to the X2 direction side of each of the multiple DC input wirings 13. As a result, whether the uninterruptible power supply module 2, 3, 4 or 5 is placed on the X1 direction side (one side) or the X2 direction side (the other side) of the input module 1, power can be easily supplied (input) from a battery 103 external to the device to each power conversion unit (power conversion unit 20, 30, 40 or 50) of the placed uninterruptible power supply module 2, 3, 4 or 5.

[0109] Furthermore, in the first embodiment, as described above, the multiple bypass input wirings 14 are electrically connected to the multiple bypass wirings 64 of the bypass module 6 and the multiple bypass wirings 74 of the bypass module 7. Power from the bypass power supply 104 external to the device is input to each of the multiple bypass wirings 64 and the multiple bypass wirings 74 via the bypass input cable attachment parts 14a extending from the X1 direction side to the X2 direction side of each of the multiple bypass input wirings 14. This allows power to be easily supplied (input) from the bypass power supply 104 external to the device to the multiple bypass wirings (the multiple bypass wirings 64 and the multiple bypass wirings 74) of both the bypass module 6 arranged on the X1 direction side (one side) of the input module 1 and the bypass module 7 arranged on the X2 direction side (the other side) of the input module 1 via the bypass input cable attachment parts 14a extending from the X1 direction side to the X2 direction side of each of the multiple bypass input wirings 14. As a result, whether the bypass module 6 or 7 is placed on the X1 direction side (one side) or the X2 direction side (the other side) of the input module 1, power can be easily supplied (input) to the placed bypass module 6 or 7 from the bypass power supply AC power supply 104 outside the device.

[0110] Furthermore, in the first embodiment, as described above, each of the multiple AC output wirings 12 extends in the X direction and has an output cable attachment portion 12a to which an output cable 102a electrically connected to a load 102 external to the device is attached. The output cable attachment portions 12a of each of the multiple AC output wirings 12 are arranged to be spaced apart from each other in the Y direction. This makes it possible to prevent an increase in the width of the input module 1 in the X direction compared to when the output cable attachment portions 12a are spaced apart from each other in the X direction. As a result, it is possible to prevent an increase in the width of the entire uninterruptible power supply in the X direction.

[0111] Furthermore, in the first embodiment, as described above, the output cable mounting portion 12a of each of the multiple AC output wirings 12 is disposed offset in the Y direction with respect to the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 and the bypass input cable mounting portion 14a of each of the multiple bypass input wirings 14. As a result, the output cable mounting portion 12a is disposed offset in the Y direction with respect to the AC input cable mounting portion 11a and the bypass input cable mounting portion 14a, which makes it easy to attach or detach the output cable 102a. As a result, it is possible to improve the workability during installation and maintenance of the device.

[0112] [Second embodiment] The overall configuration of an uninterruptible power supply 200 according to a second embodiment of the present invention will be described with reference to Figures 12 to 15. Note that the same components as those in the first embodiment are given the same reference numerals and descriptions thereof will be omitted.

[0113] As shown in Fig. 12, an uninterruptible power supply 200 according to the second embodiment includes uninterruptible power supply modules 2, 3, 204, and 205. The uninterruptible power supply 200 also includes two input modules (input modules 208 and 209) and two bypass modules (bypass modules 6 and 206). An output branch panel 300 is provided on the X1 direction side (one side) of uninterruptible power supply module 3 (uninterruptible power supply module 205) of the uninterruptible power supply 200. The uninterruptible power supply modules 204 and 205 are an example of "plurality of uninterruptible power supply modules" in the claims.

[0114] In uninterruptible power supply 200, the rear side of uninterruptible power supply module 2 and the rear side of uninterruptible power supply module 204 are arranged to face each other in the Y direction. In uninterruptible power supply 200, the rear side of uninterruptible power supply module 3 and the rear side of uninterruptible power supply module 205 are arranged to face each other in the Y direction. In uninterruptible power supply 200, the rear side of input module 208 and the rear side of input module 209 are arranged to face each other in the Y direction, and the rear side of bypass module 6 and the rear side of bypass module 206 are arranged to face each other in the Y direction.

[0115] 13, input module 208 is configured to be electrically connected to the power conversion units (power conversion units 20 and 30) of uninterruptible power supply modules 2 and 3. Input module 209 is configured to be electrically connected to the power conversion units (power conversion units 40 and 50) of uninterruptible power supply modules 204 and 205.

[0116] 13, the bypass module 6 includes a control unit 60. Also, the bypass module 206 includes a control unit 260, as shown in FIG.

[0117] In the second embodiment, the control unit 60 is configured to control the overall power conversion of the uninterruptible power supply modules 2 and 3 (power conversion units 20 and 30). The control unit 260 is also configured to control the overall power conversion of the uninterruptible power supply modules 204 and 205 (power conversion units 40 and 50). In other words, the bypass module 6 and the bypass module 206 are control modules equipped with a plurality of bypass wirings 64 (bypass circuits).

[0118] The uninterruptible power supply 200 (uninterruptible power supply module 2) is configured to output AC power converted by the power conversion unit 20 to an output branch panel 300 arranged on the X1 direction side via bus bar 22 and bus bar 32. The uninterruptible power supply 200 (uninterruptible power supply module 3) is also configured to output AC power converted by the power conversion unit 30 to the output branch panel 300 arranged on the X1 direction side via bus bar 32.

[0119] The uninterruptible power supply 200 (uninterruptible power supply module 204) is configured to output the AC power converted by the power conversion unit 40 to the output branch panel 300 located on the X1 direction side via the bus bar 42 and the bus bar 52. The uninterruptible power supply 200 (uninterruptible power supply module 205) is configured to output the AC power converted by the power conversion unit 50 to the output branch panel 300 located on the X1 direction side via the bus bar 52.

[0120] That is, the uninterruptible power supply 200 is configured to output AC power converted by the power conversion units (power conversion units 20, 30, 40, and 50) of the uninterruptible power supply modules 2, 3, 204, and 205 to the output branch panel 300. Therefore, no AC output wiring is provided in the input module 208 and the input module 209, as shown in Figs. 14 and 15.

[0121] In the uninterruptible power supply 200, as shown in FIG. 14, the multiple plate-shaped conductor wirings 10 provided in the input module 208 include multiple AC input wirings 281, multiple DC input wirings 283, and multiple bypass input wirings 284.

[0122] As shown in FIG. 14, the plurality of AC input wirings 281 have AC input cable attachment portions 281a at their ends on the X2 direction side (the other side) to which AC input cables 101a (see FIGS. 5 and 6) are attached.

[0123] As shown in FIG. 14, the DC input wirings 283 have DC input cable attachment portions 283a at their ends on the X2 direction side (the other side) to which the DC input cables 103a (see FIGS. 5 and 6) are attached.

[0124] As shown in FIG. 14, the plurality of bypass input wirings 284 have bypass input cable attachment portions 284a at their ends on the X2 direction side (the other side) to which the bypass input cables 104a (see FIGS. 5 and 6) are attached.

[0125] In addition, in the uninterruptible power supply 200, as shown in FIG. 15, the multiple plate-shaped conductor wirings 10 provided in the input module 209 include multiple AC input wirings 291, multiple DC input wirings 293, and multiple bypass input wirings 294.

[0126] As shown in FIG. 15, the AC input wirings 291 each have an AC input cable attachment portion 291a at the end on the X2 direction side (the other side) to which the AC input cable 101a (see FIGS. 5 and 6) is attached.

[0127] As shown in FIG. 15, the multiple DC input wirings 293 have DC input cable attachment portions 293a at their ends on the X2 direction side (the other side) to which the DC input cables 103a (see FIGS. 5 and 6) are attached.

[0128] As shown in FIG. 15, the plurality of bypass input wirings 294 have bypass input cable attachment portions 294a at their ends on the X2 direction side (the other side) to which the bypass input cables 104a (see FIGS. 5 and 6) are attached.

[0129] Output branching panel 300 is configured to receive the power converted by power conversion units 20, 30, 40, and 50, and to branch the power to loads 202 outside the device. For example, loads 202a, 202b, and 202c are connected to output branching panel 300 as loads 202, and output branching panel 300 is configured to branch the input power according to each of loads 202a, 202b, and 202c connected thereto.

[0130] Although an AC power supply 101, a battery 103, and an AC power supply for bypass power supply 104 external to the device are connected to each of input modules 208 and 209 of uninterruptible power supply 200, different AC power supplies, batteries, and AC power supplies for bypass power supply may also be connected to each of input modules 208 and 209, respectively.

[0131] The other configurations of the second embodiment are the same as those of the first embodiment.

[0132] (Effects of the second embodiment) In the second embodiment, the following effects can be obtained.

[0133] In the second embodiment, as in the first embodiment, it is possible to prevent the overall width of the uninterruptible power supply device 200 from increasing in the X direction in which the uninterruptible power supply modules 2 and 3 (uninterruptible power supply modules 4 and 5) and the input module 208 (input module 209) are adjacent to each other.

[0134] [Third embodiment] The overall configuration of an uninterruptible power supply 400 according to a third embodiment of the present invention will be described with reference to Figures 16 to 18. Note that the same components as those in the first and second embodiments are given the same reference numerals, and description thereof will be omitted.

[0135] Unlike the uninterruptible power supply 100 according to the first embodiment in which uninterruptible power supply modules 2 and 3 are arranged on the X1 direction side (one side) of the input module 1 and uninterruptible power supply modules 4 and 5 are arranged on the X2 direction side (the other side), the uninterruptible power supply 400 according to the third embodiment is configured so that multiple uninterruptible power supply modules (uninterruptible power supply modules 2 and 3) are arranged only on the X1 direction side (one side) of the input module 401, as shown in FIG. 16 .

[0136] An uninterruptible power supply 400 according to the third embodiment includes an input module 401, a bypass module 6, and uninterruptible power supply modules 2 and 3. In the uninterruptible power supply 400, as shown in Fig. 16, the modules are arranged in the following order from the X2 direction side: input module 401, bypass module 6, uninterruptible power supply module 2, and uninterruptible power supply module 3.

[0137] In the uninterruptible power supply 400, as shown in Figures 17 and 18, the multiple plate-shaped conductor wirings 10 provided in the input module 401 include multiple AC input wirings 411, multiple AC output wirings 12, multiple DC input wirings 413, and multiple bypass input wirings 414.

[0138] As shown in FIG. 18, the AC input wirings 411 have AC input cable attachment portions 411a at their ends on the X2 direction side (the other side) to which the AC input cables 101a (see FIGS. 5 and 6) are attached.

[0139] As shown in FIG. 18, the AC output wirings 12 have output cable attachment portions 12a at their ends on the X2 direction side (the other side) to which output cables 102a (see FIGS. 5 and 6) are attached.

[0140] As shown in FIG. 18, the multiple DC input wirings 413 have DC input cable attachment portions 413a at their ends on the X2 direction side (the other side) to which the DC input cables 103a (see FIGS. 5 and 6) are attached.

[0141] As shown in FIG. 18, the plurality of bypass input wirings 414 have bypass input cable attachment portions 414a at their ends on the X2 direction side (the other side) to which the bypass input cables 104a (see FIGS. 5 and 6) are attached.

[0142] The other configurations of the third embodiment are the same as those of the first embodiment.

[0143] (Effects of the third embodiment) In the third embodiment, the following effects can be obtained.

[0144] In the third embodiment, similarly to the first embodiment, it is possible to prevent the overall width of the uninterruptible power supply 400 from increasing in the X direction in which the uninterruptible power supply modules 2 and 3 and the input module 401 are adjacent to each other.

[0145] [Variations] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims rather than the description of the above embodiments, and further includes all modifications (variations) within the meaning and scope of the claims.

[0146] For example, in the first embodiment described above, the multiple plate-like conductor wirings 10 provided in the input module 1 include multiple AC input wirings 11, multiple AC output wirings 12, multiple DC input wirings 13, and multiple bypass input wirings 14, but the present invention is not limited to this. For example, the multiple plate-like conductor wirings provided in the input module may include only multiple AC input wirings. Furthermore, the multiple plate-like conductor wirings provided in the input module may include at least one but not more than two of the multiple AC output wirings, multiple DC input wirings, and multiple bypass input wirings, along with the multiple AC input wirings.

[0147] Furthermore, in the above-described first embodiment, an example has been shown in which the DC input cable mounting portion 13a of each of the multiple DC input wirings 13 is disposed offset in the Y direction (second direction) with respect to the AC input cable mounting portion 11a of each of the multiple AC input wirings 11, but the present invention is not limited to this. In the present invention, the DC input cable mounting portion of each of the multiple DC input wirings may be disposed so as to overlap with each other when viewed from the up-down direction (Z direction) without being offset in the second direction with respect to each other. Furthermore, the DC input cable mounting portion of each of the multiple DC input wirings may be disposed offset in the first direction with respect to each other.

[0148] In the first embodiment, the DC input cable mounting portion 13a of each of the plurality of DC input wirings 13 is disposed offset in the Y2 direction (toward the rear surface) with respect to the AC input cable mounting portion 11a of each of the plurality of AC input wirings 11, but the present invention is not limited to this. In the present invention, the AC input cable mounting portion of each of the plurality of AC input wirings may be disposed offset in the Y2 direction with respect to the DC input cable mounting portion of each of the plurality of DC input wirings.

[0149] In the first embodiment, the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 is disposed offset in the Z direction (up and down direction) with respect to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13, but the present invention is not limited to this. In the present invention, the AC input cable mounting portion of each of the multiple AC input wirings may be disposed so as to overlap with the DC input cable mounting portion of each of the multiple DC input wirings when viewed from the front side or rear side (Y direction) of the input module, without being offset in the up and down direction.

[0150] In the first embodiment, an example was shown in which the bypass module 6 provided with a plurality of bypass wirings 64 and the bypass module 7 provided with a plurality of bypass wirings 74 were provided, but the present invention is not limited to this. In the present invention, a plurality of bypass wirings may be provided in the input module. In other words, the input module and the bypass module may be configured integrally.

[0151] In the first embodiment, the bypass module 6 is a control module equipped with a plurality of bypass wirings 64 (bypass circuits), but the present invention is not limited to this. In the present invention, the uninterruptible power supply may independently include a bypass module equipped with a plurality of bypass wirings and a control module equipped with a control unit.

[0152] In the first embodiment, the bypass input cable mounting portion 14a of each of the multiple bypass input wirings 14 is disposed offset in the Y direction (second direction) relative to the DC input cable mounting portion 13a of each of the multiple DC input wirings 13, but the present invention is not limited to this. In the present invention, the bypass input cable mounting portion of each of the multiple bypass input wirings may be disposed so as to overlap with the DC input cable mounting portion of each of the multiple DC input wirings when viewed from the up-down direction (Z direction) without being offset in the second direction relative to the DC input cable mounting portion of each of the multiple DC input wirings. In addition, the bypass input cable mounting portion of each of the multiple bypass input wirings may be disposed offset in the first direction relative to the DC input cable mounting portion of each of the multiple DC input wirings.

[0153] In the first embodiment, the bypass input cable mounting portion 14a of each of the plurality of bypass input wirings 14 is disposed offset in the Y1 direction (toward the front surface) with respect to the DC input cable mounting portion 13a of each of the plurality of DC input wirings 13, but the present invention is not limited to this. In the present invention, the DC input cable mounting portion of each of the plurality of DC input wirings may be disposed offset in the Y1 direction with respect to the bypass input cable mounting portion of each of the plurality of bypass input wirings.

[0154] In the first embodiment, the AC input cable attachment portions 11a of the plurality of AC input wirings 11 are arranged so as to overlap each other when viewed from the Y direction (second direction), but the present invention is not limited to this. In the present invention, the AC input cable attachment portions of the plurality of AC input wirings may be arranged so as to be offset from each other in the vertical direction.

[0155] In the first embodiment, the bypass input cable mounting portions 14a of the multiple bypass input wirings 14 are arranged so as to overlap each other when viewed from the Y direction (second direction), but the present invention is not limited to this. In the present invention, the bypass input cable mounting portions of the multiple bypass input wirings may be arranged so as to be offset from each other in the vertical direction.

[0156] In the first embodiment, the DC input cable attachment portions 13a of the multiple DC input wirings 13 are arranged to be offset from each other in the Z direction (up and down direction), but the present invention is not limited to this. In the present invention, the DC input cable attachment portions of the multiple DC input wirings may be arranged to overlap each other when viewed from the second direction (Y direction).

[0157] Furthermore, in the first embodiment, an example was shown in which the bypass module 6 and the bypass module 7 were provided, but the present invention is not limited to this. In the present invention, the uninterruptible power supply may be configured to include only one bypass module. In this case, a plurality of first uninterruptible power supply modules and a plurality of second uninterruptible power supply modules may be configured to be electrically connected to a plurality of bypass wirings provided in one (same) bypass module.

[0158] In the first embodiment, the output cable mounting portion 12a of each of the multiple AC output wirings 12 is disposed offset in the Y direction (second direction) with respect to the AC input cable mounting portion 11a of each of the multiple AC input wirings 11 and the bypass input cable mounting portion 14a of each of the multiple bypass input wirings 14. However, the present invention is not limited to this. In the present invention, the output cable mounting portion of each of the multiple AC output wirings may be disposed so as to overlap with the AC input cable mounting portion of each of the multiple AC input wirings or the bypass input cable mounting portion of each of the multiple bypass input wirings when viewed from above and below (Z direction) without being offset in the second direction with respect to the AC input cable mounting portion of each of the multiple AC input wirings or the bypass input cable mounting portion of each of the multiple bypass input wirings. Furthermore, the output cable mounting portion of each of the multiple AC output wirings may be disposed offset in the first direction with respect to the AC input cable mounting portion of each of the multiple AC input wirings or the bypass input cable mounting portion of each of the multiple bypass input wirings.

[0159] In the first embodiment, the output cable mounting portion 12a of each of the plurality of AC output wirings 12 is disposed offset in the Y2 direction (backward) relative to the AC input cable mounting portion 11a of each of the plurality of AC input wirings 11 and the bypass input cable mounting portion 14a of each of the plurality of bypass input wirings 14, but the present invention is not limited to this. In the present invention, the output cable mounting portion of each of the plurality of AC output wirings may be disposed offset toward the front side (Y1 direction) relative to the AC input cable mounting portion of each of the plurality of AC input wirings or the bypass input cable mounting portion of each of the plurality of bypass input wirings.

[0160] In the first embodiment, the plurality of AC output wirings 12 are divided into an X1 direction side (one side) and an X2 direction side (the other side). However, the present invention is not limited to this. In the present invention, as in an input module 501 according to a first modified example shown in FIG. 19, the plurality of AC output wirings 512 may be formed to extend from one side (X1 direction side) to the other side (X2 direction side). For example, as shown in FIG. 19, the AC output wirings 512 are formed to be line-symmetric (bilaterally symmetric) with respect to an axis (the central axis of the input module 501) along the Z direction (the up-down direction). The AC output wirings 512 have busbar connection portions 512b at the end on the X2 direction side and the end on the X1 direction side, and an output cable attachment portion 512a between them. [Explanation of symbols]

[0161] 1, 208, 209, 401, 501 Input Module 2, 3 Uninterruptible Power Supply Module (One-Way Uninterruptible Power Supply Module) 4, 5 Uninterruptible Power Supply Module (Other Uninterruptible Power Supply Module) 6 Bypass module (one-way bypass module) 7 Bypass module (other bypass module) 10 Plate-shaped conductor wiring 11, 281, 291, 411 AC input wiring 11a, 281a, 291a, 411a AC input cable attachment point 12, 512 AC output wiring 12a, 512a Output cable attachment point 13, 283, 293, 413 DC input wiring 13a, 283a, 293a, 413a DC input cable attachment part 14, 284, 294, 414 Bypass input wiring 14a, 284a, 294a, 414a Bypass input cable attachment point 20, 30 Power conversion unit (one-way power conversion unit) 40, 50 Power conversion unit (other power conversion unit) 64 Bypass wiring (one-way bypass wiring) 74 Bypass wiring (other bypass wiring) 100, 200, 400 uninterruptible power supplies 101 AC power supply 101a AC input cable 102, 202, 202a, 202b, 202c load 102a output cable 103 Battery 103a DC input cable 104 AC power supply for bypass power supply 104a Bypass Input Cable 204, 205 Uninterruptible Power Supply Module 206 Bypass Module

Claims

1. an input module provided with a plurality of AC input wirings provided corresponding to at least each phase of power supplied from an AC power source external to the device; a plurality of uninterruptible power supply modules each including a power conversion unit that converts power received from the AC power supply outside the device via the plurality of AC input wirings and outputs the converted power to a load outside the device; each of the plurality of AC input wirings extends in a first direction in which the plurality of uninterruptible power supply modules and the input module are adjacent to each other, and has an AC input cable attachment portion to which an AC input cable electrically connected to the AC power supply outside the device is attached; an uninterruptible power supply, wherein the AC input cable attachment portions are arranged to be spaced apart from each other in a second direction in which the front side and rear side of the input module face each other;

2. The input module is provided with a plurality of DC input wirings corresponding to the respective phases of the power supplied from a battery external to the device; each of the plurality of DC input wirings extends in the first direction and has a DC input cable attachment portion to which a DC input cable electrically connected to the battery outside the device is attached; The uninterruptible power supply according to claim 1 , wherein the DC input cable attachment portions are arranged so as to be spaced apart from each other in the second direction.

3. 3. The uninterruptible power supply according to claim 2, wherein the DC input cable attachment portion of each of the plurality of DC input wirings is arranged offset in the second direction relative to the AC input cable attachment portion of each of the plurality of AC input wirings.

4. 4. The uninterruptible power supply according to claim 2, wherein the AC input cable attachment portion of each of the plurality of AC input wirings is arranged to be vertically offset from the DC input cable attachment portion of each of the plurality of DC input wirings.

5. a bypass module provided with a plurality of bypass wirings provided corresponding to each phase of power supplied from the bypass power supply AC power source external to the device in order to output power from the bypass power supply AC power source external to the device to the load external to the device without passing through the power conversion unit; the input module is provided with a plurality of bypass input wirings provided corresponding to the plurality of bypass wirings; each of the plurality of bypass input wirings extends in the first direction and has a bypass input cable attachment portion to which a bypass input cable electrically connected to the bypass power supply AC power source outside the device is attached; 5. The uninterruptible power supply according to claim 2, wherein the bypass input cable attachment portions are arranged so as to be spaced apart from each other in the second direction.

6. 6. The uninterruptible power supply according to claim 5, wherein the bypass input cable attachment portion of each of the plurality of bypass input wirings is arranged to be shifted in the second direction relative to the DC input cable attachment portion of each of the plurality of DC input wirings.

7. 7. The uninterruptible power supply according to claim 5, wherein the DC input cable attachment portions of the plurality of DC input wirings are arranged so as to be vertically offset from each other.

8. the plurality of uninterruptible power supply modules include a plurality of first uninterruptible power supply modules arranged on one side of the input module in the first direction, and a plurality of second uninterruptible power supply modules arranged on the other side of the input module in the first direction, the plurality of AC input wirings are electrically connected to a first power conversion unit that is the power conversion unit of each of the plurality of first uninterruptible power supply modules and a second power conversion unit that is the power conversion unit of each of the plurality of second uninterruptible power supply modules, 8. The uninterruptible power supply device according to claim 5, wherein power from the AC power source external to the device is input to each of the one power conversion unit and the other power conversion unit via the AC input cable attachment portion extending from the one side to the other side of each of the plurality of AC input wirings.

9. the plurality of DC input wirings are electrically connected to the first power conversion unit of each of the plurality of first uninterruptible power supply modules and the second power conversion unit of each of the plurality of second uninterruptible power supply modules, 9. The uninterruptible power supply according to claim 8, wherein power from the battery external to the device is input to each of the first power conversion unit and the second power conversion unit via the DC input cable attachment portion extending from the one side to the other side of each of the plurality of DC input wirings.

10. The bypass module is provided in plurality, the plurality of bypass modules include a first bypass module disposed between the input module and the plurality of first uninterruptible power supply modules, and a second bypass module disposed between the input module and the plurality of second uninterruptible power supply modules, the plurality of bypass input wirings are electrically connected to a plurality of first bypass wirings as the plurality of bypass wirings of the first bypass module and a plurality of second bypass wirings as the plurality of bypass wirings of the second bypass module; 10. The uninterruptible power supply according to claim 8, wherein power from the bypass power supply AC power source external to the device is input to each of the plurality of first bypass wirings and the plurality of second bypass wirings via the bypass input cable attachment portion extending from the one side to the other side of each of the plurality of bypass input wirings.

11. the input module is provided with a plurality of AC output wirings provided corresponding to the respective phases of the power converted and output by the one power conversion unit and the other power conversion unit; each of the plurality of AC output wirings extends in the first direction and has an output cable attachment portion to which an output cable electrically connected to the load outside the device is attached; The uninterruptible power supply according to claim 10 , wherein the output cable attachment portions of the plurality of AC output wires are arranged to be spaced apart from each other in the second direction.

12. 12. The uninterruptible power supply according to claim 11, wherein the output cable attachment portion of each of the plurality of AC output wirings is arranged to be offset in the second direction with respect to the AC input cable attachment portion of each of the plurality of AC input wirings and the bypass input cable attachment portion of each of the plurality of bypass input wirings.

Images