Uninterruptible power supply device, uninterruptible power supply system, and power supply device

Abstract

In this uninterruptible power supply device, at least one of an interface unit and a back-side conductor unit includes a laminated bus bar in which a plurality of plate-like bus bars constituting power wiring and an insulating member disposed between the bus bars are laminated.

Description

Uninterruptible power supply device, uninterruptible power supply system, and power supply device

[0001] The present invention relates to an uninterruptible power supply device, an uninterruptible power supply system, and a power supply device.

[0002] Conventionally, an uninterruptible power supply device including a power conversion module that is modularly removable from a housing and housed in the housing is known. Such an uninterruptible power supply device is disclosed, for example, in Japanese Patent No. 7143534.

[0003] Japanese Patent No. 7143534 describes an uninterruptible power supply device including a UPS (Uninterruptible Power Supply) unit (power conversion module) that is housed in a housing in a modularly removable state with respect to the housing and that converts AC power supplied from an AC power source and supplies it to a load. In the uninterruptible power supply device described in Japanese Patent No. 7143534, a terminal unit is provided, which is a portion connecting the inside and outside of the housing among the power wiring connecting the power conversion unit, the AC power source, and the load. The terminal unit includes a plurality of terminals and a plurality of cables each connected to each of the plurality of terminals.

[0004] Japanese Patent No. 7143534

[0005] Here, although not described in Japanese Patent Publication No. 7143534, an uninterruptible power supply (UPS) as described in Japanese Patent Publication No. 7143534 includes a rear-side conductor section housed on the rear side of the casing, which connects the terminal unit (interface section) and the UPS unit (power conversion module) of the power wiring. Furthermore, although not described in Japanese Patent Publication No. 7143534, the rear-side conductor section also includes multiple terminals and multiple cables, similar to the terminal unit. When each of the terminal unit and the rear-side conductor section includes multiple terminals and multiple cables, the space for housing the terminal unit and the space for housing the rear-side conductor section in the casing tends to be relatively large in order to avoid the difficulty of connecting each of the multiple terminals and each of the multiple cables in each of the terminal unit and the rear-side conductor section. In other words, an uninterruptible power supply as described in Japanese Patent Publication No. 7143534 has the problem that the casing tends to be relatively large. Note that the above problem is also true for power supply devices other than UPSs (for example, power conditioners used in solar power generation systems, etc.).

[0006] This invention was made to solve the above-mentioned problems, and one of its objectives is to provide an uninterruptible power supply, an uninterruptible power supply system, and a power supply device that can be miniaturized.

[0007] To achieve the above objective, the uninterruptible power supply according to the first aspect of this invention comprises a housing, a power conversion module housed in the housing in a modular manner so as to be removable from the housing and including a power conversion unit that converts AC power supplied from an AC power source and supplies it to a load, a bypass module housed in the housing in a modular manner so as to be removable from the housing and including a bypass circuit unit that supplies AC power supplied from an AC power source to a load without going through the power conversion unit, a control module housed in the housing in a modular manner so as to be removable from the housing and including a control unit that controls the power conversion by the power conversion unit, and the power conversion module and bypass module in the housing The enclosure comprises an interface section, which is the part of the power wiring that connects the inside and outside of the enclosure and connects the power conversion unit and bypass circuit section to the AC power supply and load, and which is housed above or below the power module and control module; and a rear-side conductor section, which is housed on the rear side of the enclosure and connects the interface section to the power conversion module and bypass module, and which is the part of the power wiring that connects the interface section to the power conversion module and bypass module, wherein at least one of the interface section and the rear-side conductor section includes a laminate busbar, which is formed by laminating a plurality of plate-shaped busbars that constitute the power wiring and insulating members arranged between the busbars.

[0008] As described above, in the first aspect of this invention, the uninterruptible power supply (UPS) includes, in at least one of the interface section and the rear conductor section, a laminated busbar formed by laminating a plurality of plate-shaped busbars constituting the power wiring and insulating members arranged between the busbars. By including a laminated busbar in at least one of the interface section and the rear conductor section, which allows for a relatively compact arrangement of the plurality of busbars, at least one of the space required to house the interface section and the space required to house the rear conductor section in the housing can be reduced. As a result, the housing can be made smaller. Furthermore, by using a laminated busbar in at least one of the interface section and the rear conductor section, which consists of a plurality of plate-shaped busbars constituting the power wiring and insulating members, the wiring length of the power wiring can be shortened compared to when cables constituting the power wiring are routed and connected. As a result, the resistance in the power wiring of at least one of the interface section and the rear conductor section can be reduced, thereby improving the power conversion efficiency of the UPS. Furthermore, by using a laminate busbar in which multiple plate-shaped busbars constituting the power wiring and an insulating material are laminated in at least one of the interface section and the rear-side conductor section, the wiring work for the power wiring in the uninterruptible power supply can be simplified compared to the case where cables constituting the power wiring are routed and connected.

[0009] In the uninterruptible power supply according to the first aspect described above, preferably, both the interface section and the rear conductor section include laminate busbars. With this configuration, unlike the case where only one of the interface section or the rear conductor section includes laminate busbars, both the space for housing the interface section and the space for housing the rear conductor section in the housing can be reduced. As a result, the housing can be made smaller compared to the case where only one of the interface section or the rear conductor section includes laminate busbars, the efficiency of power conversion in the uninterruptible power supply can be further improved, and the wiring work for power wiring in the uninterruptible power supply can be further simplified.

[0010] In the uninterruptible power supply according to the first aspect described above, preferably, the interface portion includes an interface laminate busbar, which is a laminate busbar stacked in the vertical direction of the housing and extending in a plane perpendicular to the vertical direction of the housing, and an interface terminal portion that protrudes from the side end of the interface laminate busbar, which is the end of the interface laminate busbar perpendicular to the vertical direction of the housing. With this configuration, the interface terminal portion that protrudes from the side end of the interface laminate busbar can be used as a terminal portion for connecting to a rear-side conductor portion housed on the rear side of the housing, behind the power conversion module and the control module, and as a terminal portion for connecting to a portion of the power wiring that is connected to the interface laminate busbar and housed in a peripheral panel outside the housing. This makes it possible to easily transport the uninterruptible power supply and the peripheral panel with the power wiring of the uninterruptible power supply and the power wiring of the peripheral panel already connected, unlike when the power wiring of the uninterruptible power supply and the power wiring of the peripheral panel are connected by cables. This makes it possible to easily transport the uninterruptible power supply and the peripheral panel from the factory to the place where they will be used. This eliminates the need to connect the power wiring of the uninterruptible power supply (UPS) to the power wiring of the peripheral panel at locations where UPS units and peripheral panels are used, thereby reducing the workload on workers at those locations. Note that the peripheral panels mentioned above refer to panels that are not UPS units themselves, such as AC power supply side panels connected to the AC power supply side of the UPS, or load side panels connected to the load side of the UPS. Furthermore, the same effect as the connection between UPS units and peripheral panels applies to the connections between UPS units connected in parallel.

[0011] In this case, preferably, the interface terminal portion protrudes from the side end of the interface laminate busbar toward the rear side of the housing and includes a rear terminal portion for connecting the interface laminate busbar to the rear conductor portion. With this configuration, the rear terminal portion protruding from the side end of the interface laminate busbar toward the rear side of the housing allows for easy connection of the interface laminate busbar, which is housed above or below the power conversion module, bypass module, and control module in the housing, to the rear conductor portion, which is housed behind the power conversion module, bypass module, and control module in the housing.

[0012] In the configuration in which the interface terminal section includes a rear terminal section, preferably the interface section is housed above the power conversion module, bypass module, and control module in the housing, and the rear conductor section includes a rear laminate busbar, which is a laminate busbar stacked in the front-rear direction of the housing and extending in a plane perpendicular to the front-rear direction of the housing, and an upper terminal section that protrudes upward from the upper end of the rear laminate busbar and is connected to the rear terminal section of the interface laminate busbar. With this configuration, the rear conductor section housed behind the power conversion module, bypass module, and control module in the housing can be easily connected by the upper terminal section that protrudes toward the rear side of the housing from the side end of the interface laminate busbar, which is housed above or below the power conversion module, bypass module, and control module in the housing.

[0013] In a configuration in which the above interface section includes an interface laminate busbar and an interface terminal section, preferably, the interface section is housed above the power conversion module, bypass module, and control module in the housing, and the interface terminal section includes a left terminal section that protrudes straight from the side end of the interface laminate busbar toward the left side of the housing, a right terminal section that protrudes straight from the side end of the interface laminate busbar toward the right side of the housing, a rear terminal section that protrudes straight from the side end of the interface laminate busbar toward the rear side of the housing, and an upward-bent front terminal section that protrudes from the side end of the interface laminate busbar toward the front side of the housing and whose tip is bent so as to extend toward the upper side of the housing. With this configuration, in a configuration in which the interface section is housed above the power conversion module, bypass module, and control module in the housing, any two of the left terminal section, right terminal section, rear terminal section, and upward-bent front terminal section can be easily used as terminal sections for connecting to the portion of the power wiring housed in an external panel (peripheral panel) outside the housing.

[0014] In a configuration in which the interface section includes an interface laminate busbar and an interface terminal section, preferably, the interface section is housed in the enclosure below the power conversion module, bypass module, and control module, and the interface terminal section includes a left terminal section that protrudes straight from the side end of the interface laminate busbar toward the left side of the enclosure, a right terminal section that protrudes straight from the side end of the interface laminate busbar toward the right side of the enclosure, a rear terminal section that protrudes straight from the side end of the interface laminate busbar toward the rear side of the enclosure, and a downward-bent front terminal section that protrudes from the side end of the interface laminate busbar toward the front side of the enclosure and whose tip is bent so as to extend toward the bottom of the enclosure. With this configuration, in a configuration in which the interface section is housed in the enclosure below the power conversion module, bypass module, and control module, any two of the left terminal section, right terminal section, rear terminal section, and downward-bent front terminal section can be easily used as terminal sections for connecting to the portion of the power wiring housed in the external panel surrounding the enclosure.

[0015] In the uninterruptible power supply according to the first aspect described above, preferably, the rear conductor portion includes a rear laminate busbar which is a laminate busbar, and is housed in the housing on the rear side of the power conversion module, bypass module and control module, and further comprises control wiring that connects the power conversion unit and bypass module to the control module, wherein in the rear laminate busbar, in addition to the lamination of a plurality of plate-shaped busbars constituting power wiring and an insulating member, a plurality of plate-shaped busbars constituting control wiring and an insulating member are laminated, or in addition to the lamination of a plurality of plate-shaped busbars constituting power wiring and an insulating member, a circuit board including a circuit constituting control wiring is fixed to the laminated portion where the plurality of plate-shaped busbars and insulating member are laminated. With this configuration, unlike cases where the multiple plate-shaped busbars constituting the control wiring and insulating material are not laminated in the rear-side laminate busbar, and where the circuit board containing the circuits constituting the control wiring is not fixed to the laminated portion where the multiple plate-shaped busbars and insulating material are laminated, the space for accommodating the control wiring, in addition to the space for accommodating the power wiring, can be reduced on the rear side of the enclosure beyond the power conversion module, bypass module, and control module. As a result, the enclosure can be made smaller compared to cases where the multiple plate-shaped busbars constituting the control wiring and insulating material are not laminated in the rear-side laminate busbar, and where the circuit board containing the circuits constituting the control wiring is not fixed to the laminated portion where the multiple plate-shaped busbars and insulating material are laminated. Furthermore, by using a laminate busbar in which multiple plate-shaped busbars constituting the control wiring and insulating material are laminated in the rear-side conductor section, or a circuit board containing the circuits constituting the control wiring is fixed to the laminated portion where multiple plate-shaped busbars and insulating material are laminated, the wiring length of the control wiring can be shortened compared to cases where cables constituting the control wiring are routed and connected. As a result, the electrical resistance in the control wiring can be reduced, thereby suppressing the degradation of control signals in the uninterruptible power supply.Furthermore, by using a laminate busbar, which is formed by stacking multiple plate-shaped busbars and insulating material to constitute the control wiring, or by using a circuit board that includes the circuits constituting the control wiring on a laminated section formed by stacking multiple plate-shaped busbars and insulating material, the wiring work for the control wiring can be simplified compared to the case where cables constituting the control wiring are routed and connected.

[0016] In the uninterruptible power supply according to the first aspect described above, preferably, the power conversion module further includes a module-side connector provided on the rear side of the power conversion module, and the rear-side conductor portion includes a rear-side laminated busbar, which is a laminated busbar, and a laminate-side connector provided on the front side of the rear-side laminated busbar, and the module-side connector of the power conversion module and the laminate-side connector of the rear-side laminated busbar are configured to be insertable and removable by sliding in the front-rear direction of the housing. With this configuration, in a configuration in which the rear-side conductor portion includes a rear-side laminated busbar, it is easy to realize a configuration in which the power conversion module is housed in the housing in a modularized state that can be removed from the housing by the module-side connector of the power conversion module and the laminate-side connector of the rear-side laminated busbar.

[0017] In the uninterruptible power supply according to the first aspect described above, preferably, the rear conductor portion includes a rear laminate busbar, the power conversion module further includes a module fan for generating cooling air from the front to the rear of the housing to cool the inside of the power conversion module, the rear laminate busbar is formed in a position that overlaps with the power conversion module when viewed from the front to the rear of the housing, and includes ventilation holes for passing cooling air in the front to the rear direction of the housing. With this configuration, the cooling air that has passed through the power conversion module from the front to the rear of the housing can be directed to the rear side of the housing beyond the rear laminate busbar through the ventilation holes. This prevents the cooling air after passing through the power conversion module from being blocked by the rear laminate busbar and becoming difficult to discharge from the housing.

[0018] In the uninterruptible power supply according to the first aspect described above, preferably, the interface section includes an interface laminate busbar, which is a laminate busbar, and multiple housings are provided so as to be adjacent to each other in the left-right direction of the housings, and each interface laminate busbar of the multiple housings is integrally formed so as to span across the multiple housings. With this configuration, it is not necessary to provide terminal sections for connecting each interface laminate busbar of the multiple housings to each interface laminate busbar of the multiple housings, as is the case when each interface laminate busbar of the multiple housings is provided separately. As a result, in a configuration in which multiple housings are provided so as to be adjacent to each other in the left-right direction of the housings, the device configuration can be simplified compared to the case in which each interface laminate busbar of the multiple housings is provided separately.

[0019] In the uninterruptible power supply according to the first aspect described above, preferably, the power conversion module, bypass module, and control module are housed in each of the multiple enclosures, or one or two of the power conversion module, bypass module, and control module are housed in one of the multiple enclosures, while the remaining modules are housed in the other enclosures. With this configuration, the arrangement of the power conversion module, bypass module, and control module in the multiple enclosures can be selected from multiple options, thereby improving the degree of freedom in the arrangement of the power conversion module, bypass module, and control module in the multiple enclosures.

[0020] Furthermore, in order to achieve the above objective, the uninterruptible power supply system according to the second aspect of this invention comprises an uninterruptible power supply device, an AC power supply side panel connected to the AC power supply side of the uninterruptible power supply device, and a load side panel connected to the load side of the uninterruptible power supply device, wherein the uninterruptible power supply device comprises a housing, a power conversion module housed in the housing in a modular manner that can be removed from the housing and includes a power conversion unit that converts AC power supplied from the AC power supply and supplies it to the load, a bypass module housed in the housing in a modular manner that can be removed from the housing and includes a bypass circuit unit that supplies AC power supplied from the AC power supply to the load without going through the power conversion unit, and a control unit housed in the housing in a modular manner that can be removed from the housing and controls the power conversion by the power conversion unit The power supply includes a control module including a control unit, an interface section housed above or below the power conversion module, bypass module, and control module in the housing and connecting the inside and outside of the housing of the power wiring that connects the power conversion unit and bypass circuit section to the AC power supply and load, and a rear-side conductor section housed on the rear side of the housing above the power conversion module, bypass module, and control module and connecting the interface section to the power conversion module and bypass circuit section, wherein at least one of the interface section and the rear-side conductor section includes a laminate busbar formed by stacking a plurality of plate-shaped busbars constituting the power wiring and insulating members arranged between the busbars.

[0021] As described above, in the second aspect of the uninterruptible power supply system of this invention, at least one of the interface section and the rear conductor section includes a laminate busbar in which a plurality of plate-shaped busbars constituting power wiring and insulating members arranged between the busbars are laminated. As a result, similar to the uninterruptible power supply in the first aspect, by including a laminate busbar in at least one of the interface section and the rear conductor section that allows for a relatively compact arrangement of the plurality of busbars, at least one of the space for housing the interface section and the space for housing the rear conductor section in the housing can be reduced. As a result, the housing can be made smaller, similar to the uninterruptible power supply in the first aspect. Furthermore, similar to the uninterruptible power supply in the first aspect, by using a laminate busbar in which a plurality of plate-shaped busbars constituting power wiring and insulating members are laminated in at least one of the interface section and the rear conductor section, the wiring length of the power wiring can be shortened compared to when cables are routed and connected. As a result, similar to the uninterruptible power supply according to the first aspect described above, the resistance in the power wiring of at least one of the interface section and the rear conductor section can be reduced, thereby improving the efficiency of power conversion in the uninterruptible power supply. Furthermore, similar to the uninterruptible power supply according to the first aspect described above, by using a laminate busbar in which multiple plate-shaped busbars constituting the power wiring and an insulating member are stacked in at least one of the interface section and the rear conductor section, the wiring work for the power wiring in the uninterruptible power supply can be simplified compared to the case where cables constituting the power wiring are routed and connected.

[0022] Furthermore, in order to achieve the above objective, a power supply device according to a third aspect of the present invention comprises a housing, a power conversion module housed in the housing in a modular state that is removable from the housing and includes a power conversion unit that converts AC power supplied from an AC power source or DC power supplied from a DC power source and supplies it to a load, a control module housed in the housing in a modular state that is removable from the housing and includes a control unit that controls the power conversion by the power conversion unit, an interface unit housed in the housing above or below the power conversion module and the control module and includes a portion of the power wiring that connects the inside and outside of the housing and connects the power conversion unit to the AC power source or DC power source and the load, and a rear-side conductor unit housed in the housing behind the power conversion module and the control module and is a portion of the power wiring that connects the interface unit and the power conversion module, wherein at least one of the interface unit and the rear-side conductor unit includes a laminate busbar in which a plurality of plate-shaped busbars constituting the power wiring and insulating members arranged between the busbars are laminated.

[0023] As described above, the power supply device according to the third aspect of this invention includes, in at least one of the interface section and the rear conductor section, a laminated busbar in which a plurality of plate-shaped busbars constituting power wiring and insulating members arranged between the busbars are laminated. As a result, similar to the uninterruptible power supply device according to the first aspect and the uninterruptible power supply system according to the second aspect, by including a laminated busbar in at least one of the interface section and the rear conductor section, which allows for a relatively compact arrangement of the plurality of busbars, at least one of the space for housing the interface section and the space for housing the rear conductor section in the housing can be reduced. Consequently, similar to the uninterruptible power supply device according to the first aspect and the uninterruptible power supply system according to the second aspect, the housing can be made smaller. Furthermore, similar to the uninterruptible power supply according to the first aspect and the uninterruptible power supply system according to the second aspect, by using a laminate busbar in which multiple plate-shaped busbars constituting the power wiring and an insulating member are laminated in at least one of the interface section and the rear conductor section, the wiring length of the power wiring can be shortened compared to when cables are routed and connected. As a result, similar to the uninterruptible power supply according to the first aspect and the uninterruptible power supply system according to the second aspect, the resistance in the power wiring of at least one of the interface section and the rear conductor section can be reduced, thereby improving the efficiency of power conversion in the power supply unit. Furthermore, similar to the uninterruptible power supply according to the first aspect and the uninterruptible power supply system according to the second aspect, by using a laminate busbar in which multiple plate-shaped busbars constituting the power wiring and an insulating member are laminated in at least one of the interface section and the rear conductor section, the wiring work for the power wiring in the power supply unit can be simplified compared to when cables constituting the power wiring are routed and connected.

[0024] In the power supply device according to the third aspect described above, preferably, the interface portion includes an interface laminate busbar, which is a laminate busbar stacked in the vertical direction of the housing and extending in a plane perpendicular to the vertical direction of the housing, and an interface terminal portion protruding from the side end of the interface laminate busbar, which is the end of the interface laminate busbar in a direction perpendicular to the vertical direction of the housing, wherein the interface laminate busbar is arranged adjacent to the housing on either the left, right, or rear side of the housing and extends into the interior of at least one of the power supply side panel connected to the AC power supply side or DC power supply side of the power supply device, and the load side panel connected to the load side of the power supply device. With this configuration, the interface terminal portion protruding from the side end of the interface laminate busbar can be used as a terminal portion for connecting to a portion of the power wiring located inside the power supply side panel or load side panel (for example, a circuit breaker). As a result, the wiring length of the power wiring can be shortened and the wiring work for the power wiring can be simplified compared to the case where the interface terminal portion and the portion of the power wiring located inside the power supply side panel or load side panel are connected by a cable. Furthermore, at the site where the power supply unit is installed, since cable wiring work is unnecessary between the interface terminal and the portion of the power wiring located inside the power supply side panel or load side panel, the construction costs for installing the power supply unit can be reduced, and the delivery time for the power supply unit can be shortened.

[0025] According to the present invention, as described above, it is possible to provide an uninterruptible power supply, an uninterruptible power supply system, and a power supply device that can be miniaturized.

[0026] This is a diagram showing the circuit configuration of an uninterruptible power supply system according to one embodiment of the present invention. This is a diagram showing the arrangement of the uninterruptible power supply, AC power distribution panel, and load distribution panel in an uninterruptible power supply system according to one embodiment of the present invention. This is a diagram showing the circuit configuration of an uninterruptible power supply according to one embodiment of the present invention. This is a perspective view showing an uninterruptible power supply according to one embodiment of the present invention. This is a diagram showing the control wiring of an uninterruptible power supply according to one embodiment of the present invention. This is a perspective view showing the interface section of an uninterruptible power supply according to one embodiment of the present invention. This is a cross-sectional view showing the interface laminate busbar of an uninterruptible power supply according to one embodiment of the present invention. This is a perspective view showing the interface laminate busbar of an uninterruptible power supply according to one embodiment of the present invention. This is a diagram showing the circuit configuration of the rear conductor section of an uninterruptible power supply according to one embodiment of the present invention. This is a cross-sectional view showing the rear laminate busbar of an uninterruptible power supply according to one embodiment of the present invention. This is a diagram showing the module-side connectors of the power conversion module, bypass module, and control module of an uninterruptible power supply according to one embodiment of the present invention. This is a diagram showing the laminate-side connector and ventilation holes of the rear conductor section of an uninterruptible power supply according to one embodiment of the present invention. This is a diagram showing the flow of cooling air in an uninterruptible power supply according to one embodiment of the present invention. This is a perspective view showing an uninterruptible power supply according to a first modification of the present invention. This is a perspective view showing an uninterruptible power supply according to a second modification of the present invention. This figure shows the arrangement of the uninterruptible power supply, AC power distribution panel, and load distribution panel in an uninterruptible power supply system according to a third modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a third modification of the present invention. This is a perspective view showing the interface section of the uninterruptible power supply according to a third modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a fourth modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a fifth modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a sixth modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a seventh modification of the present invention. This is a perspective view showing the uninterruptible power supply according to an eighth modification of the present invention. This is a perspective view showing the uninterruptible power supply according to a ninth modification of the present invention. This is a schematic diagram showing the uninterruptible power supply according to a tenth modification of the present invention. This is a schematic diagram showing the uninterruptible power supply according to an eleventh modification of the present invention.This is a schematic diagram showing an uninterruptible power supply according to the 12th modification of the present invention. This is a schematic diagram showing an uninterruptible power supply according to the 13th modification of the present invention. This is a schematic diagram showing an uninterruptible power supply according to the 14th modification of the present invention. This is a schematic diagram showing an uninterruptible power supply according to the 15th modification of the present invention. This is a schematic diagram showing an uninterruptible power supply according to the 16th modification of the present invention. This is a diagram showing the circuit configuration of a power conditioner according to the 17th modification of the present invention. This is a schematic diagram showing a power conditioner according to the 17th modification of the present invention.

[0027] The following describes embodiments of the present invention based on the drawings.

[0028] Referring to Figures 1 to 13, the configuration of an uninterruptible power supply (UPS) 100 and an uninterruptible power supply system 110 according to one embodiment of the present invention will be described. The UPS 100 and the uninterruptible power supply system 110 convert the AC power supplied from the AC power source 120 (see Figure 1) and supply AC power having a constant voltage, current, and frequency to the load 130 (see Figure 1). Furthermore, even in the event of a power outage (when AC power is not supplied from the AC power source 120), the UPS 100 and the uninterruptible power supply system 110 supply AC power having a constant voltage, current, and frequency to the load 130 for a certain period of time. Note that the UPS 100 is an example of a "power supply device" as defined in the claims.

[0029] (Configuration of the Uninterruptible Power Supply System) As shown in Figure 1, the uninterruptible power supply system 110 comprises an uninterruptible power supply unit 100 that converts AC power supplied from an AC power supply 120 and supplies it to a load 130, an AC power supply side panel 111 connected to the AC power supply 120 side of the uninterruptible power supply unit 100 by power wiring PW, and a load side panel 112 connected to the load 130 side of the uninterruptible power supply unit 100 by power wiring PW.

[0030] The AC power supply 120 is power supplied from the commercial distribution network owned by the power company (grid power), and power supplied from a generator. The AC power supply side panel 111 includes a transformer secondary panel 111a connected to the AC power supply 120 side of the uninterruptible power supply 100 by power wiring PW, and a high-voltage panel 111b connected to the AC power supply 120 of the transformer secondary panel 111a by power wiring PW. The AC power supply side panel 111 is connected to the AC power supply 120 by power wiring PW via the sub-substation receiving room.

[0031] The load side panel 112 includes a low-voltage panel 112a. The low-voltage panel 112a is connected to the load 130 by power wiring PW. The load 130 is, for example, a server installed in a server room.

[0032] As shown in Figure 2, the high-voltage panel 111b, the transformer secondary panel 111a, the uninterruptible power supply 100, and the low-voltage panel 112a are arranged adjacent to each other in the left-right direction of the uninterruptible power supply 100.

[0033] (Configuration of the Uninterruptible Power Supply) As shown in Figure 3, the uninterruptible power supply 100 is configured to convert AC power from the AC power source 120 and output it to the load 130. The uninterruptible power supply 100 is also configured to convert DC power from the backup battery 140 into AC power by power conversion and output it to the load 130.

[0034] <Arrangement of Components in the Enclosure> As shown in Figure 4, the uninterruptible power supply 100 comprises an enclosure 10, a power conversion module 20, a bypass module 30, a control module 40, an interface unit 50, and a rear-side conductor unit 60. In the following description, the left-right, front-back, and up-down directions of the enclosure 10 will be referred to as the X, Y, and Z directions, respectively. The left and right sides of the enclosure 10 in the left-right direction will be referred to as the X1 side and the X2 side, respectively. The front and rear sides of the enclosure 10 in the front-back direction will be referred to as the Y1 side and the Y2 side, respectively. The upper and lower sides of the enclosure 10 in the up-down direction will be referred to as the Z1 side and the Z2 side, respectively.

[0035] The power conversion module 20, bypass module 30, and control module 40 are housed in the housing 10 in a modularized state that allows them to be removed from the housing 10. There are multiple (five) power conversion modules 20 in the housing 10. There are multiple (two) control modules 40 in the housing 10. The multiple (five) power conversion modules 20 are arranged in a line in the Z direction within the housing 10. The multiple (two) control modules 40 are arranged in a line in the Z direction. The multiple (two) control modules 40, the bypass module 30, and the multiple (five) power conversion modules 20 are arranged in this order, in a line from the Z1 side to the Z2 side. In other words, the multiple modules (multiple power conversion modules 20, bypass module 30, and multiple control modules 40) housed in the housing 10 in a modularized state that allows them to be removed from the housing 10 are arranged in a line in the Z direction. The interface section 50 is located closer to the Z1 side than the multiple (two) control modules 40. Specifically, the interface section 50 is housed above (towards Z1) the power conversion module 20, the bypass module 30, and the control module 40 in the housing 10. The rear conductor section 60 is housed behind (towards Y2) the power conversion module 20, the control module 40, and the bypass module 30 in the housing 10. In the uninterruptible power supply 100, only one housing 10 is provided. Note that the shelves for arranging each module in the housing 10 are not shown in the figure.

[0036] <Power Conversion Module> As shown in Figure 3, the power conversion module 20 includes a power conversion unit 21, an input AC reactor 22, an output first AC reactor 23, an output second AC reactor 24, a DC reactor 25, an input switch 26, an output switch 27, and a DC switch 28.

[0037] The power conversion unit 21 converts the AC power supplied from the AC power source 120 and supplies it to the load 130. Specifically, the power conversion unit 21 includes a converter unit 21a, an inverter unit 21b, and a chopper unit 21c. The converter unit 21a converts the AC power input from the AC power source 120 into DC power. The DC power converted by the converter unit 21a is output to the inverter unit 21b. The inverter unit 21b converts the input DC power into AC power. The chopper unit 21c boosts the DC power input from the battery 140 and supplies it to the inverter unit 21b. The converter unit 21a, the inverter unit 21b, and the chopper unit 21c have switching elements such as IGBTs (Insulated Gate Bipolar Transistors). The power conversion unit 21 performs power conversion by switching the switching elements. The power conversion unit 21 is configured to convert the AC power supplied from the AC power source 120 and to supply the converted AC power to the load 130. The power conversion unit 21 also converts the DC power supplied from the battery 140 into AC power and supplies the converted AC power to the load 130.

[0038] The input AC reactor 22 is connected to the AC power supply 120 side of the power conversion unit 21 (converter unit 21a). The output first AC reactor 23 is connected to the load 130 side of the power conversion unit 21 (inverter unit 21b). The output second AC reactor 24 is connected to the load 130 side of the output first AC reactor 23. The input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 suppress harmonics in the AC power. The DC reactor 25 is connected to the battery 140 side of the power conversion unit 21 (chopper unit 21c).

[0039] The input switch 26 is connected to the AC power supply 120 side of the output first AC reactor 23. The output switch 27 is connected to the load 130 side of the output second AC reactor 24. The DC switch 28 is connected to the battery 140 side of the DC reactor 25. The input switch 26, the output switch 27, and the output switch 27 are, for example, electromagnetic contactors.

[0040] <Bypass Module> As shown in Figure 3, the bypass module 30 includes a bypass circuit section 31 that supplies AC power supplied from the AC power source 120 to the load 130 without going through the power conversion section 21.

[0041] <Control Module> As shown in Figure 5, the control module 40 includes a control unit 41 that controls power conversion by the power conversion unit 21, switching between a state in which AC power supplied from the AC power supply 120 is supplied to the load 130 via the power conversion unit 21, and a state in which AC power supplied from the AC power supply 120 is supplied to the load 130 via the bypass circuit unit 31, etc. The control module 40 (control unit 41) is connected to the power conversion module 20 (power conversion unit 21) and the bypass module 30 (bypass circuit unit 31) by control wiring CW. That is, the uninterruptible power supply 100 is equipped with control wiring CW that connects the power conversion unit 21 and the bypass module 30 to the control module 40. The control wiring CW is housed in the housing 10 (see Figure 4) on the rear side (Y2 side) of the power conversion module 20 and the control module 40. Note that multiple (two) control modules 40 (control unit 41) are connected to each other by control wiring CW.

[0042] <Interface Section> As shown in Figure 3, the interface section 50 is the part of the power wiring PW that connects the inside and outside of the housing 10, which connects the power conversion section 21 and the bypass circuit section 31 to the AC power supply 120 (located outside the housing 10 (see Figure 4)) and the load 130 (located outside the housing 10). The interface section 50 is also the part of the power wiring PW that connects the inside and outside of the housing 10, which connects the power conversion section 21 to the battery 140 (located outside the housing 10). As shown in Figure 6, the interface section 50 includes an interface laminate busbar 51 and an interface terminal section 52.

[0043] As shown in Figure 7, the interface laminate busbar 51 is a laminate busbar (laminated conductor) LB that extends in a plane (XY plane) perpendicular to the vertical direction of the housing 10, and is formed by laminating a plurality (12) plate-shaped busbars 51a (busbar PB) that constitute the power wiring PW (see Figure 3) and insulating members 51b (insulating members IM) placed between the busbars 51a. The insulating members 51b are placed not only between the busbars 51a but also on the outside of the outermost busbars 51a in the Z direction. In the interface laminate busbar 51, the 12 plate-shaped busbars 51a that constitute the power wiring PW include 4 busbars 51a for 3-phase 4-wire AC input, 3 busbars 51a for 3-phase 3-wire AC output, 2 busbars 51a for battery input / output, and 3 busbars 51a for 3-phase 3-wire bypass input. In the interface laminate busbar 51, the number of busbars 51a is changed as appropriate depending on the circuit configuration. For example, if the AC input is three-phase three-wire, there will be three busbars 51a for the AC input.

[0044] In the interface laminated bus bar 51, the thickness t11 of the insulating member 51b is smaller than the thickness t12 of the bus bar 51a. The end portion of the insulating member 51b in the XY plane is disposed outside the end portion of the bus bar 51a in the XY plane. The distance D11 between the end portion of the insulating member 51b in the XY plane and the end portion of the bus bar 51a in the XY plane is set so as to ensure the insulation property of the bus bar 51a. The distance D11 is, for example, 4 mm or more.

[0045] As shown in FIG. 8, the interface terminal portion 52 protrudes from the side end portion 51c which is the end portion in the direction orthogonal to the vertical direction (Z direction) of the housing 10 among the interface laminated bus bars 51. The interval D12 in the XY plane between adjacent interface terminal portions 52 is set so as to ensure the insulation property of the interface terminal portion 52. The distance D12 is, for example, 10 mm or more.

[0046] As shown in Figure 6, the interface terminal section 52 includes a rear terminal section 52a, a left terminal section 52b, a right terminal section 52c, and an upward-bent front terminal section 52d. The rear terminal section 52a, left terminal section 52b, right terminal section 52c, and upward-bent front terminal section 52d are provided in multiple (12) units, each protruding from the respective ends of the multiple (12) busbars 51a (see Figure 7). The rear terminal section 52a protrudes straight from the (Y2 side) side end 51c of the interface laminate busbar 51 toward the rear side (Y2 side) of the housing 10 and is a terminal section for connecting the interface laminate busbar 51 to the rear side conductor section 60. The left terminal section 52b protrudes straight from the (X1 side) side end 51c of the interface laminate busbar 51 toward the left side (X1 side) of the housing 10. The right-side terminal section 52c protrudes straight from the (X2 side) end 51c of the interface laminate busbar 51 toward the right side (X2 side) of the housing 10. The upwardly bent front-side terminal section 52d protrudes toward the front side (Y1 side) of the housing 10 toward the (Y1 side) of the interface laminate busbar 51, and its tip is bent so as to extend toward the upper side (Z1 side) of the housing 10. The left-side terminal section 52b is connected to the transformer secondary panel 111a (see Figure 2), and the right-side terminal section 52c is connected to the low-voltage panel 112a (see Figure 2).

[0047] <Rear side conductor section> As shown in Figure 9, the rear side conductor section 60 is the part that connects the interface section 50 of the power wiring PW to the power conversion module 20 and the bypass module 30. As shown in Figure 4, the rear side conductor section 60 includes a rear side laminate busbar 61 and an upper end terminal section 62.

[0048] As shown in FIG. 10, the backside laminated bus bar 61 is a laminated bus bar LB in which a plurality (12 sheets) of plate-shaped bus bars 61a (bus bars PB) constituting the power wiring PW (see FIG. 3) and insulating members 61b (insulating members IM) arranged between the bus bars 61a are laminated in the front-back direction (Y direction) of the housing 10 and extend in a plane (XZ plane) orthogonal to the front-back direction of the housing 10. The insulating member 61b is arranged not only between the bus bars 61a but also outside the outermost bus bar 61a in the Y direction. In the backside laminated bus bar 61, in addition to the plurality (12 sheets) of plate-shaped bus bars 61a (bus bars PB) and the insulating members 61b that constitute the power wiring PW, a plurality (4 sheets) of plate-shaped bus bars 61a (bus bars CB) and the insulating members 61b that constitute the control wiring CW are laminated. In the backside laminated bus bar 61, the 12 plate-shaped bus bars 61a that constitute the power wiring PW include 4 bus bars 61a for three-phase four-wire AC input, 3 bus bars 61a for three-phase three-wire AC output, 2 bus bars 61a for battery input / output, and 3 bus bars 61a for three-phase three-wire bypass input. Note that in the backside laminated bus bar 61, the number of bus bars 61a is appropriately changed according to the circuit configuration. For example, when the AC input is three-phase three-wire, the number of bus bars 61a for AC input is 3. As will be described later, the backside conductor portion 60 is provided on the front side (Y1 side) of the backside laminated bus bar 61 and includes a plurality of connectors corresponding to each of the plurality (12 sheets) of plate-shaped bus bars 61a. The plurality of connectors enable electrical connection to each of the plurality (12 sheets) of plate-shaped bus bars 61a.

[0049] In the backside laminated bus bar 61, the thickness t21 of the insulating member 61b is smaller than the thickness t22 of the bus bar 61a. The end portion of the insulating member 61b in the XZ plane is arranged outside the end portion of the bus bar 61a in the XZ plane. The distance D21 between the end portion of the insulating member 61b in the XZ plane and the end portion of the bus bar 61a in the XZ plane is set so as to ensure the insulation property of the bus bar 61a. The distance D21 is, for example, 4 mm or more.

[0050] As shown in Figure 6, the upper end terminal portion 62 protrudes upward (towards Z1) from the upper end portion 61c of the rear laminate busbar 61 and is connected to the rear terminal portion 52a of the interface laminate busbar 51. The spacing D22 between adjacent upper end terminal portions 62 in the XZ plane is set to ensure the insulation of the upper end terminal portions 62. The distance D22 is, for example, 10 mm or more. Multiple (12) upper end terminal portions 62 are provided so as to protrude from the upper end of each of the multiple (12) busbars 61a.

[0051] (Plug-in structure between module and rear conductor) As shown in Figure 11, the power conversion module 20 includes a module-side connector 20a provided on the rear side (Y2 side) of the power conversion module 20. The bypass module 30 includes a module-side connector 30a provided on the rear side (Y2 side) of the bypass module 30. The control module 40 includes a module-side connector 40a provided on the rear side (Y2 side) of the control module 40. Module-side connectors 20a, 30a, and 40a are male connectors.

[0052] As shown in Figure 12, the rear conductor portion 60 includes a laminate-side connector 63a provided on the front side (Y1 side) of the rear laminate busbar 61 at a position corresponding to the module-side connector 20a of the power conversion module 20. The rear conductor portion 60 includes a laminate-side connector 63b provided on the front side (Y1 side) of the rear laminate busbar 61 at a position corresponding to the module-side connector 30a of the bypass module 30. The rear conductor portion 60 includes a laminate-side connector 63c provided on the front side (Y1 side) of the rear laminate busbar 61 at a position corresponding to the module-side connector 40a of the control module 40. Laminate-side connectors 63a, 63b, and 63c are female connectors.

[0053] The module-side connector 20a of the power conversion module 20 and the laminate-side connector 63a of the rear-side laminate busbar 61 are configured to be insertable and removable by sliding in the front-to-back direction of the housing 10. The module-side connector 30a of the bypass module 30 and the laminate-side connector 63b of the rear-side laminate busbar 61 are configured to be insertable and removable by sliding in the front-to-back direction of the housing 10. The module-side connector 30c of the control module 40 and the laminate-side connector 63c of the rear-side laminate busbar 61 are configured to be insertable and removable by sliding in the front-to-back direction of the housing 10.

[0054] (Cooling Structure) As shown in Figure 4, the power conversion module 20 includes a module fan 20b for generating cooling air from the front side (Y1 side) to the rear side (Y2 side) of the housing 10 to cool the inside of the power conversion module 20. The bypass module 30 includes a module fan 30b for generating cooling air from the front side (Y1 side) to the rear side (Y2 side) of the housing 10 to cool the inside of the bypass module 30.

[0055] As shown in Figure 12, the rear laminate busbar 61 is formed in a position that overlaps with the power conversion module 20 when viewed from the front-to-back direction (Y direction) of the housing 10, and includes ventilation holes 64a for allowing cooling air to pass through in the front-to-back direction of the housing 10. The rear laminate busbar 61 is formed in a position that overlaps with the bypass module 30 when viewed from the front-to-back direction (Y direction) of the housing 10, and includes ventilation holes 64b for allowing cooling air to pass through in the front-to-back direction of the housing 10.

[0056] The uninterruptible power supply 100 is housed in the housing 10 at both the Z1 and Y2 ends and includes an upper fan 70 for discharging air from inside the housing 10 to the outside of the housing 10 from the upper end of the housing 10. Multiple (four) upper fans 70 are provided in the housing 10, arranged in the X direction.

[0057] As shown in Figure 13, the air that passes through the power conversion module 20 from Y1 to Y2 by the module fan 20b of the power conversion module 20 passes through the ventilation holes 64a of the rear laminate busbar 61 from Y1 to Y2. The air that passes through the bypass module 30 from Y1 to Y2 by the module fan 30b of the bypass module 30 passes through the ventilation holes 64b of the rear laminate busbar 61 from Y1 to Y2. The air that passes through the ventilation holes 64a of the rear laminate busbar 61 from Y1 to Y2, and the air that passes through the ventilation holes 64b of the rear laminate busbar 61 from Y1 to Y2, are then flowed from Z2 to Z1 by the upper fan 70 and discharged to the outside of the housing 10 from the upper end of the housing 10.

[0058] (Effects of this embodiment) In this embodiment, the following effects can be obtained.

[0059] In this embodiment, as described above, at least one of the interface section 50 and the rear conductor section 60 includes a laminated busbar LB in which a plurality of plate-shaped busbars PB constituting the power wiring PW and insulating members IM arranged between the busbars PB are laminated. As a result, by including a laminated busbar LB in at least one of the interface section 50 and the rear conductor section 60, which allows for a relatively compact arrangement of the plurality of busbars PB, at least one of the space for housing the interface section 50 and the space for housing the rear conductor section 60 in the housing 10 can be reduced. Consequently, the housing 10 can be made smaller. Furthermore, by using a laminated busbar LB in at least one of the interface section 50 and the rear conductor section 60, in which a plurality of plate-shaped busbars PB constituting the power wiring PW and insulating members IM are laminated, the wiring length of the power wiring PW can be shortened compared to when cables constituting the power wiring PW are routed and connected. As a result, the resistance in the power wiring PW of at least one of the interface section 50 and the rear conductor section 60 can be reduced, thereby improving the efficiency of power conversion in the uninterruptible power supply 100. Furthermore, by using a laminate busbar LB in which multiple plate-shaped busbars PB and insulating member IM are laminated together in at least one of the interface section 50 and the rear conductor section 60, the wiring work for the power wiring PW in the uninterruptible power supply 100 can be simplified compared to the case where cables constituting the power wiring PW are routed and connected.

[0060] Furthermore, in this embodiment, both the interface section 50 and the rear conductor section 60 include a laminate busbar LB. This makes it possible to reduce the space required for both the interface section 50 and the rear conductor section 60 in the housing 10, unlike when only one of the interface section 50 or the rear conductor section 60 includes a laminate busbar LB. As a result, the housing 10 can be made smaller compared to when only one of the interface section 50 or the rear conductor section 60 includes a laminate busbar LB, the efficiency of power conversion in the uninterruptible power supply 100 can be further improved, and the wiring work for the power wiring PW in the uninterruptible power supply 100 can be further simplified.

[0061] Furthermore, in this embodiment, the interface section 50 includes an interface laminate busbar 51, which is a laminate busbar LB stacked in the vertical direction and extending in a plane perpendicular to the vertical direction of the housing 10, and an interface terminal section 52 protruding from the side end 51c of the interface laminate busbar 51, which is the end perpendicular to the vertical direction of the housing 10. As a result, the interface terminal section 52 protruding from the side end 51c of the interface laminate busbar 51 can be used as a terminal section for connecting to a rear-side conductor section 60 housed on the rear side of the housing 10, behind the power conversion module 20 and the control module 40, and as a terminal section for connecting to a portion of the power wiring PW that is connected to the interface laminate busbar 51 and housed in a peripheral panel outside the housing 10. This allows the uninterruptible power supply (UPS) 100 and the peripheral panel to be easily transported from the factory to the location where they will be used, with the UPS 100 and the peripheral panel already connected, unlike when the UPS 100 and the peripheral panel are connected by a cable. This eliminates the need to connect the UPS 100 and the peripheral panel at the location where they will be used, thus reducing the workload on workers at that location.

[0062] Furthermore, in this embodiment, the interface terminal portion 52 protrudes from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10 and includes a rear terminal portion 52a for connecting the interface laminate busbar 51 to the rear conductor portion 60. As a result, the interface laminate busbar 51, which is housed above the power conversion module 20, bypass module 30, and control module 40 in the housing 10, can be easily connected to the rear conductor portion 60, which is housed behind the power conversion module 20, bypass module 30, and control module 40 in the housing 10, by the rear terminal portion 52a protruding from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10.

[0063] Furthermore, in this embodiment, the interface section 50 is housed above the power conversion module 20, the bypass module 30, and the control module 40 in the housing 10. The rear-side conductor section 60 includes a rear-side laminated busbar 61, which is a laminated busbar LB stacked in the front-rear direction of the housing 10 and extending in a plane perpendicular to the front-rear direction of the housing 10, and an upper-end terminal section 62 that protrudes upward from the upper end 61c of the rear-side laminated busbar 61 and is connected to the rear-side terminal section 52a of the interface laminated busbar 51. As a result, the rear conductor portion 60, which is housed behind the power conversion module 20, bypass module 30, and control module 40 in the housing 10, can be easily connected to the rear terminal portion 52a, which protrudes toward the rear side of the housing 10 from the side end 51c of the interface laminate busbar 51, which is housed above the power conversion module 20, bypass module 30, and control module 40 in the housing 10, by the upper terminal portion 62 that protrudes upward from the upper end 61c of the rear laminate busbar 61.

[0064] Furthermore, in this embodiment, the interface section 50 is housed above the power conversion module 20, the bypass module 30, and the control module 40 in the housing 10. The interface terminal section 52 includes a left terminal section 52b that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the left side of the housing 10, a right terminal section 52c that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the right side of the housing 10, a rear terminal section 52a that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10, and an upward-bent front terminal section 52d that protrudes from the side end 51c of the interface laminate busbar 51 toward the front side of the housing 10, with its tip bent so as to extend toward the upper side of the housing 10. As a result, in a configuration where the interface unit 50 is housed above the power conversion module 20, bypass module 30, and control module 40 in the housing 10, any two of the left terminal section 52b, right terminal section 52c, rear terminal section 52a, and upward-bent front terminal section 52d can be easily used as terminal sections for connecting to the portion of the power wiring PW housed in an external panel (peripheral panel) outside the housing 10.

[0065] Furthermore, in this embodiment, the rear-side conductor portion 60 includes a rear-side laminated busbar 61, which is a laminated busbar LB. The uninterruptible power supply 100 is housed in the housing 10 on the rear side of the power conversion module 20, bypass module 30, and control module 40, and includes control wiring CW that connects the power conversion unit 21 and bypass module 30 to the control module 40. In the rear-side laminated busbar 61, in addition to the lamination of multiple plate-shaped busbars PB that constitute the power wiring PW and insulating member IM, multiple plate-shaped busbars CB that constitute the control wiring CW and insulating member IM are also laminated. This makes it possible to reduce the space for housing the control wiring CW, in addition to the space for housing the power wiring PW, on the rear side of the housing 10 on the rear side of the power conversion module 20, bypass module 30, and control module 40. As a result, the housing 10 can be made smaller compared to a case where the multiple plate-shaped busbars CB and insulating member IM constituting the control wiring CW are not laminated in the rear-side laminate busbar 61. Furthermore, by using a laminate busbar LB in which the multiple plate-shaped busbars CB and insulating member IM constituting the control wiring CW are laminated in the rear-side conductor section 60, the wiring length of the control wiring CW can be shortened compared to when the cables constituting the control wiring CW are routed and connected. As a result, the electrical resistance of the control wiring CW can be reduced, thereby suppressing the degradation of the control signal in the uninterruptible power supply 100. In addition, by using a laminate busbar LB in which the multiple plate-shaped busbars CB and insulating member IM constituting the control wiring CW are laminated, the wiring work for the control wiring CW can be simplified compared to when the cables constituting the control wiring CW are routed and connected.

[0066] Furthermore, in this embodiment, the power conversion module 20 includes a module-side connector 20a provided on the rear side of the power conversion module 20. The rear-side conductor portion 60 also includes a rear-side laminate busbar 61, which is a laminate busbar LB, and a laminate-side connector 63a provided on the front side of the rear-side laminate busbar 61. The module-side connector 20a of the power conversion module 20 and the laminate-side connector 63a of the rear-side laminate busbar 61 are configured to be insertable and removable by sliding in the front-rear direction of the housing 10. This makes it easy to realize a configuration in which the power conversion module 20 is detachably modularized and housed in the housing 10 by the module-side connector 20a of the power conversion module 20 and the laminate-side connector 63a of the rear-side laminate busbar 61.

[0067] Furthermore, in this embodiment, the rear conductor portion 60 includes a rear laminate busbar 61, which is a laminate busbar LB. The power conversion module 20 also includes a module fan 20b for generating cooling air to cool the inside of the power conversion module 20, directed from the front to the rear of the housing 10. The rear laminate busbar 61 is formed in a position that overlaps with the power conversion module 20 when viewed from the front-to-rear direction of the housing 10, and includes ventilation holes 64a for allowing cooling air to pass through in the front-to-rear direction of the housing 10. As a result, the cooling air that has passed through the power conversion module 20 can be directed through the ventilation holes 64a to the rear of the housing 10 beyond the rear laminate busbar 61. This prevents the cooling air after passing through the power conversion module 20 from being blocked by the rear laminate busbar 61 and becoming difficult to discharge from the housing 10.

[0068] [Variations] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than the description of the embodiments above, and further includes all modifications (variations) in the sense and scope equivalent to the claims.

[0069] For example, in the above embodiment, an example was shown in which both the interface portion 50 and the rear conductor portion 60 include a laminate busbar LB, but the present invention is not limited thereto. In the present invention, only one of the interface portion or the rear conductor portion may include a laminate busbar.

[0070] Furthermore, in the above embodiment, an example was shown in which the interface portion 50 includes an interface laminate busbar 51 which is a laminate busbar LB stacked in the vertical direction of the housing 10 and extending in a plane perpendicular to the vertical direction of the housing 10, and an interface terminal portion 52 protruding from the side end portion 51c of the interface laminate busbar 51, but the present invention is not limited to this. In the present invention, the interface portion may include an interface laminate busbar, which is a laminate busbar stacked in the left-right direction of the housing and extending in a plane perpendicular to the left-right direction of the housing, and an interface terminal portion protruding from the end of the interface laminate busbar facing in a direction perpendicular to the left-right direction of the housing (front-to-back direction of the housing, up-to-down direction of the housing), or the interface portion may include an interface laminate busbar, which is a laminate busbar stacked in the front-to-back direction of the housing and extending in a plane perpendicular to the front-to-back direction of the housing, and an interface terminal portion protruding from the end of the interface laminate busbar facing in a direction perpendicular to the front-to-back direction of the housing (left-to-right direction of the housing, up-to-down direction of the housing).

[0071] Furthermore, in the above embodiment, an example was shown in which the interface terminal portion 52 protrudes from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10 and includes a rear terminal portion 52a for connecting the interface laminate busbar 51 to the rear conductor portion 60, but the present invention is not limited thereto. In the present invention, the interface terminal portion may include a front terminal portion that protrudes from the side end of the interface laminate busbar toward the front side of the housing and connects the interface laminate busbar to the rear conductor portion, or a left terminal portion that protrudes from the side end of the interface laminate busbar toward the left side of the housing and connects the interface laminate busbar to the rear conductor portion, or a right terminal portion that protrudes from the side end of the interface laminate busbar toward the right side of the housing and connects the interface laminate busbar to the rear conductor portion.

[0072] Furthermore, in the above embodiment, the interface section 50 is housed above the power conversion module 20, the bypass module 30, and the control module 40 in the housing 10, and the rear conductor section 60 includes a rear laminate busbar 61 which is a laminate busbar LB stacked in the front-rear direction of the housing 10 and extending in a plane perpendicular to the front-rear direction of the housing 10, and an upper terminal section 62 which protrudes upward from the upper end 61c of the rear laminate busbar 61 and is connected to the rear terminal section 52a of the interface laminate busbar 51, but the present invention is not limited thereto. In the present invention, the interface portion is housed above the power conversion module, bypass module, and control module in the housing, and the rear conductor portion may include a rear laminate busbar which is a laminate busbar stacked in the front-rear direction of the housing and extending in a plane perpendicular to the front-rear direction of the housing, a front terminal portion which protrudes forward from the front end of the rear laminate busbar and is connected to the rear terminal portion of the interface laminate busbar, a rear terminal portion which protrudes rearward from the rear end of the rear laminate busbar and is connected to the rear terminal portion of the interface laminate busbar, or a lower terminal portion which protrudes downward from the lower end of the rear laminate busbar and is connected to the rear terminal portion of the interface laminate busbar. Furthermore, the interface section may be housed above the power conversion module, bypass module, and control module in the housing, and the rear conductor section may include a rear laminate busbar, which is a laminate busbar stacked in the vertical direction of the housing and extending in a plane perpendicular to the vertical direction of the housing, and a terminal section that protrudes from an end facing a direction perpendicular to the vertical direction of the housing (left-right direction of the housing, front-back direction of the housing) and is connected to the rear terminal section of the interface laminate busbar.Furthermore, the interface section may be housed above the power conversion module, bypass module, and control module in the housing, and the rear conductor section may include a rear laminate busbar, which is a laminate busbar stacked in the left-right direction of the housing and extending in a plane perpendicular to the left-right direction of the housing, and a terminal section that protrudes from an end facing a direction perpendicular to the left-right direction of the housing (front-to-back direction of the housing, up-to-down direction of the housing) and is connected to the rear terminal section of the interface laminate busbar.

[0073] Furthermore, in the above embodiment, the interface section 50 is housed above the power conversion module 20, the bypass module 30, and the control module 40 in the housing 10, and the interface terminal section 52 includes a left terminal section 52b that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the left side of the housing 10, a right terminal section 52c that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the right side of the housing 10, a rear terminal section 52a that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10, and an upward-bent front terminal section 52d that protrudes from the side end 51c of the interface laminate busbar 51 toward the front side of the housing 10 and whose tip is bent so as to extend toward the upper side of the housing 10, but the present invention is not limited thereto. In the present invention, as shown in the first modified uninterruptible power supply 200 in Figure 14, the interface section 250 is housed in the housing 10 below the power conversion module 20 and the control module 40, and the interface terminal section 252 may include a left terminal section (not shown) that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the left side of the housing 10, a right terminal section 52c that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the right side of the housing 10, a rear terminal section (not shown) that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10, and a downward-bent front terminal section 252d that protrudes from the side end 51c of the interface laminate busbar 51 toward the front side of the housing 10 and whose tip is bent so as to extend toward the bottom of the housing 10. As a result, in a configuration where the interface unit 250 is housed below the power conversion module 20, bypass module 30, and control module 40 in the housing 10, any two of the left terminal section, right terminal section 52c, rear terminal section, and downward-bent front terminal section 252d can be easily used as terminal sections for connecting to the portion of the power wiring PW housed in the peripheral panel outside the housing 10.The uninterruptible power supply 200 is an example of a "power supply device" within the scope of the claim.

[0074] As shown in Figure 14, in the uninterruptible power supply 200, the multiple (two) control modules 40, the multiple (five) power conversion modules 20, and the bypass module 30 are arranged in a line from the Z1 side to the Z2 side in this order. The rear conductor portion 260 also includes a rear laminate busbar 61, which is a laminate busbar LB stacked in the front-rear direction of the housing 10 and extending in a plane perpendicular to the front-rear direction of the housing 10, and an upper terminal portion 262 that protrudes downward from the lower end portion 61d of the rear laminate busbar 61 and is connected to the rear terminal portion (not shown) of the interface laminate busbar 51.

[0075] Furthermore, in the above embodiment, the interface terminal portion 52 was shown to include a left terminal portion 52b that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the left side of the housing 10, a right terminal portion 52c that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the right side of the housing 10, a rear terminal portion 52a that protrudes straight from the side end 51c of the interface laminate busbar 51 toward the rear side of the housing 10, and an upward-bent front terminal portion 52d that protrudes from the side end 51c of the interface laminate busbar 51 toward the front side of the housing 10 and whose tip is bent so as to extend toward the upper side of the housing 10, but the present invention is not limited thereto. In the present invention, the interface terminal portion may include only three of the above-mentioned left terminal portion, right terminal portion, rear terminal portion and upward-bent front terminal portion.

[0076] Furthermore, in the above embodiment, an example was shown in which, in addition to the lamination of multiple plate-shaped busbars PB constituting power wiring PW and insulating member IM in the rear-side laminate busbar 61, multiple plate-shaped busbars CB constituting control wiring CW and insulating member IM are also laminated, but the present invention is not limited to this. In the present invention, in the rear-side laminate busbar, multiple plate-shaped busbars constituting power wiring and insulating member are laminated, and a circuit board including a circuit constituting control wiring may be fixed to the laminated portion where the multiple plate-shaped busbars and insulating member are laminated. The circuit board is a PCB (Printed Circuit Board), FPCB (Flexible Printed Circuit Board), etc.

[0077] Furthermore, in the above embodiment, the rear conductor portion 60 includes a rear laminate busbar 61 which is a laminate busbar LB, and a laminate-side connector 63a provided on the front side of the rear laminate busbar 61, and the module-side connector 20a of the power conversion module 20 and the rear conductor portion 60 of the rear laminate busbar 61 are configured to be insertable and detachable by sliding in the front-rear direction of the housing 10, but the present invention is not limited thereto. In the present invention, the rear conductor portion may include a conductor portion that is not a laminate busbar (multiple cables, multiple ordinary busbars, etc.), a conductor arrangement member to which the conductor portion that is not a laminate busbar is connected, and a conductor arrangement member-side connector provided on the front side of the conductor arrangement member, and the module-side connector of the power conversion module and the conductor arrangement member-side connector of the conductor arrangement member may be configured to be insertable and detachable by sliding in the front-rear direction of the housing.

[0078] Furthermore, in the above embodiment, the power conversion module 20 includes a module fan 20b for generating cooling air from the front to the rear of the housing 10 to cool the inside of the power conversion module 20, and the rear laminate busbar 61 is formed at a position that overlaps with the power conversion module 20 when viewed from the front to rear of the housing 10, and includes ventilation holes 64a for passing cooling air in the front to rear direction of the housing 10. However, the present invention is not limited to this. In the present invention, the power conversion module does not have to include a module fan for generating cooling air from the front to the rear of the housing to cool the inside of the power conversion module, and the rear laminate busbar does not have to be formed at a position that overlaps with the power conversion module when viewed from the front to rear direction of the housing, and does not have to include ventilation holes for passing cooling air in the front to rear direction of the housing. Furthermore, the power conversion module may not include a module fan for generating cooling air from the front to the rear of the enclosure to cool the inside of the power conversion module, and the rear laminate busbar may be formed in a position that overlaps with the power conversion module when viewed from the front to the rear of the enclosure, and may include ventilation holes for passing cooling air in the front to the rear direction of the enclosure.

[0079] Furthermore, in the above embodiment, the bypass module 30 includes a module fan 30b for generating cooling air from the front to the rear of the housing 10 to cool the inside of the bypass module 30, and the rear laminate busbar 61 is formed at a position that overlaps with the bypass module 30 when viewed from the front-rear direction of the housing 10, and includes ventilation holes 64b for passing cooling air in the front-rear direction of the housing 10. However, the present invention is not limited to this. In the present invention, the bypass module does not have to include a module fan for generating cooling air from the front to the rear of the housing to cool the inside of the bypass module, and the rear laminate busbar does not have to be formed at a position that overlaps with the bypass module when viewed from the front-rear direction of the housing, and does not have to include ventilation holes for passing cooling air in the front-rear direction of the housing. Furthermore, the bypass module may not include a module fan for generating cooling air from the front to the rear of the enclosure to cool the inside of the bypass module, and the rear laminate busbar may be formed in a position that overlaps with the bypass module when viewed from the front-to-rear direction of the enclosure, and may include ventilation holes for passing cooling air in the front-to-rear direction of the enclosure.

[0080] Furthermore, in the above embodiment, an example was shown in which the power conversion module 20 includes a module fan 20b for generating cooling air from the front to the rear of the housing 10 to cool the inside of the power conversion module 20, and the bypass module 30 includes a module fan 30b for generating cooling air from the front to the rear of the housing 10 to cool the inside of the bypass module 30, but the present invention is not limited thereto. In the present invention, similar to the power conversion module and the bypass module, the control module may also include a module fan for generating cooling air from the front to the rear of the housing to cool the inside of the control module. In that case, the rear laminate busbar may be formed in a position that overlaps with the control module when viewed from the front to the rear of the housing, and may include ventilation holes for passing cooling air in the front to the rear direction of the housing.

[0081] Furthermore, in the above embodiment, the interface section 50 includes an interface laminate busbar 51 which is a laminate busbar LB, and in the uninterruptible power supply 100, only one housing 10 is provided and the interface section 50 is housed in the housing 10. However, the present invention is not limited to this. In the present invention, as shown in the second modified uninterruptible power supply 300 in Figure 15, the interface section 350 includes an interface laminate busbar 351 which is a laminate busbar LB, and a plurality (three) of housings 10 are provided so as to be adjacent to each other in the left-right direction of the housing 10, and each interface laminate busbar 351 of the plurality (three) housings 10 may be integrally formed so as to span across the plurality of housings 10. As a result, unlike the case where each interface laminate busbar 351 of the multiple housings 10 is provided separately, there is no need to provide terminals on each interface laminate busbar 351 of the multiple housings 10 for connecting them to each other. This simplifies the device configuration in a configuration where multiple housings 10 are arranged adjacent to each other in the left-right direction, compared to the case where each interface laminate busbar 51 of the multiple housings 10 is provided separately. Note that the uninterruptible power supply 300 is an example of a "power supply device" in the claims.

[0082] As shown in Figure 15, in the uninterruptible power supply 300, the interface terminal section 352 includes a rear terminal section (not shown), a left terminal section 352b, a right terminal section 352c, and an upward-bent front terminal section 352d. The rear terminal section has three sets of multiple (12) terminals, each of the three housings 10, so as to be connected to the upper end terminal section 62 of the rear conductor section 60. The left terminal section 352b and the right terminal section 352c have only one set of multiple (12) terminals, similar to the embodiment described above. The upward-bent front terminal section 352d has only one set of multiple (12) terminals. The upward-bent front terminal section 352d is located only in the central housing 10 of the three housings 10. Furthermore, the upward-bent front terminal section may be located only in the left-hand housing of the multiple (three) housings, or only in the right-hand housing of the multiple (three) housings. Alternatively, the upward-bent front terminal section may be distributed across two or more of the multiple (three) housings. In this case, the upward-bent front terminal section may be distributed in an average number across each of the two or more housings of the multiple (three) housings. Additionally, two or four or more housings may be arranged adjacent to each other in the left-right direction, and the interface laminate busbars of each of the two or four or more housings may be integrally formed to span across the multiple housings. In the uninterruptible power supply 300, the power conversion module 20, the bypass module 30, and the control module 40 are housed in each of the multiple housings 10. Furthermore, in the uninterruptible power supply 300, in each of the multiple housings 10, multiple (two) control modules 40, a bypass module 30, and multiple (five) power conversion modules 20 are arranged in this order from the Z1 side to the Z2 side.

[0083] Furthermore, in the above embodiment, an example was shown in which five power conversion modules 20 are provided in the housing 10, two control modules 40 are provided in the housing 10, and four upper fans 70 are provided in the housing 10, but the present invention is not limited thereto. In the present invention, four or fewer power conversion modules may be provided in the housing, or six or more; one or three or more control modules may be provided in the housing; three or fewer upper fans may be provided in the housing, or five or more upper fans may not be provided in the housing.

[0084] Furthermore, although the above embodiment shows an example in which the left terminal portion 52b is connected to the transformer secondary panel 111a and the right terminal portion 52c is connected to the low-voltage panel 112a, the present invention is not limited to this. In the present invention, the right terminal portion or the upward-bent front terminal portion may be connected to the transformer secondary panel, or the left terminal portion or the upward-bent front terminal portion may be connected to the low-voltage panel.

[0085] Furthermore, in the above embodiment, an example was shown in which the left terminal portion 52b is connected to the transformer secondary panel 111a and the right terminal portion 52c is connected to the low-voltage panel 112a, but the present invention is not limited thereto. In the present invention, as in the third modified uninterruptible power supply system 410 shown in Figures 16 to 18, the uninterruptible power supply 100A and the uninterruptible power supply 100B may be connected in parallel back to back, with the left terminal portion 52b of the uninterruptible power supply 100A connected to the transformer secondary panel 111a and the left terminal portion 52b of the uninterruptible power supply 100B connected to the low-voltage panel 112a. As shown in Figures 17 and 18, the rear terminal portion 52a of the uninterruptible power supply 100A and the rear terminal portion 52a of the uninterruptible power supply 100B are connected via a parallel connection busbar 80 extending in the Y direction. In the uninterruptible power supply (UPS) 100A and UPS 100B, the rear terminal section 52a is connected to both the upper terminal section 62 of the rear conductor section 60 and the parallel connection busbar 80. In Figures 17 and 18, the left-right, front-back, and up-down directions of the housing 10 of the UPS 100A are referred to as the X, Y, and Z directions, respectively. The left and right sides of the housing 10 of the UPS 100A in the left-right direction are referred to as the X1 side and the X2 side, respectively. The front and rear sides of the housing 10 of the UPS 100A in the front-back direction are referred to as the Y1 side and the Y2 side, respectively. The upper and lower sides of the housing 10 of the UPS 100A in the up-down direction are referred to as the Z1 side and the Z2 side, respectively.

[0086] Furthermore, in the above embodiment, an example was shown in which a power conversion module 20, which includes a power conversion unit 21 comprising a converter unit 21a, an inverter unit 21b, and a chopper unit 21c, an input-side AC reactor 22, an output-side first AC reactor 23, an output-side second AC reactor 24, a DC reactor 25, an input-side switch 26, an output-side switch 27, and a DC-side switch 28, is housed in the housing 10 in a modularized state that is removable from the housing 10. However, the present invention is not limited to this. In the present invention, as shown in the fourth modified uninterruptible power supply 500 in Figure 19 and the fifth modified uninterruptible power supply 600 in Figure 20, each of the following components may be housed in the housing in a modularized state that can be removed from the housing: a power conversion module for the converter section including a converter section, a power conversion module for the inverter section including an inverter section, a power conversion module for the chopper section including a chopper section, a power conversion module for the reactor including an input AC reactor, an output first AC reactor, and an output second AC reactor, and a power conversion module for the switch including an input switch, an output switch, and a DC switch. Furthermore, as shown in the sixth modified example of the uninterruptible power supply 700 in Figure 21 and the seventh modified example of the uninterruptible power supply 800 in Figure 22, each of the following components—a power conversion module for the converter section including a converter section, a power conversion module for the inverter section including an inverter section, a power conversion module for the chopper section including a chopper section, and a power conversion module for the switch including an input-side switch, an output-side switch, and a DC-side switch—is housed in the housing in a modularized state that is removable from the housing, while a power conversion module for the reactor including an input-side AC reactor, an output-side first AC reactor, and a second AC reactor may be arranged in the housing in a modularized state that is not removable from the housing.Furthermore, as shown in the eighth modified example uninterruptible power supply 900 in Figure 23 and the ninth modified example uninterruptible power supply 1000 in Figure 24, each of the converter power conversion module including the converter section, the inverter power conversion module including the inverter section, the chopper power conversion module including the chopper section, and the switch power conversion module including the input switch, output switch, and DC switch are housed in the housing in a state in which they are modularized so as to be removable from the housing, while the input AC reactor, the output side of the first AC reactor, and the second AC reactor are each arranged in the housing in a state in which they are not modularized so as to be removable from the housing. Note that uninterruptible power supply 500, uninterruptible power supply 600, uninterruptible power supply 700, uninterruptible power supply 800, uninterruptible power supply 900, and uninterruptible power supply 1000 are examples of "power supply devices" within the scope of the claims.

[0087] As shown in Figure 19, in the uninterruptible power supply 500, each of the following modules is housed in the housing 10 in a modularized state that can be removed from the housing 10: a power conversion module 521 for the converter section including the converter section 21a, a power conversion module 522 for the inverter section including the inverter section 21b, a power conversion module 523 for the chopper section including the chopper section 21c, a power conversion module 524 for the reactor including the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24, and a power conversion module 525 for the switch including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 500 includes a power conversion module 521 for the converter section, a power conversion module 522 for the inverter section, and a power conversion module 523 for the chopper section as power conversion modules 520. In the uninterruptible power supply 500, the power conversion module for the switch 525, the power conversion module for the reactor 524, the power conversion module for the inverter section 522, the power conversion module for the chopper section 523, and the power conversion module for the converter section 521 are arranged in this order in a line from the Z1 side to the Z2 side.

[0088] As shown in Figure 20, in the uninterruptible power supply 600, each of the following modules is housed in the housing 10 in a modularized state that can be removed from the housing 10: a power conversion module 621 for the converter section including the converter section 21a, a power conversion module 622 for the inverter section including the inverter section 21b, a power conversion module 623 for the chopper section including the chopper section 21c, a power conversion module 524 for the reactor including the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24, and a power conversion module 525 for the switch including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 600 comprises a power conversion module 621 for the converter section, a power conversion module 622 for the inverter section, and a power conversion module 623 for the chopper section as power conversion modules 620. In the uninterruptible power supply 600, the power conversion module 621 for the converter section, the power conversion module 623 for the chopper section, and the power conversion module 622 for the inverter section are arranged in this order from the X1 side to the X2 side. Also, the power conversion module 525 for the switch, the power conversion module 524 for the reactor, the power conversion module 621 for the converter section, the power conversion module 623 for the chopper section, and the power conversion module 622 for the inverter section are arranged in this order in a line from the Z1 side to the Z2 side.

[0089] As shown in Figure 21, in the uninterruptible power supply 700, each of the following is housed in the housing 10 in a modularized state that can be removed from the housing 10: a power conversion module 721 for the converter section including the converter section 21a, a power conversion module 722 for the inverter section including the inverter section 21b, a power conversion module 723 for the chopper section including the chopper section 21c, and a power conversion module 525 for the switches including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 700 includes a power conversion module 721 for the converter section, a power conversion module 722 for the inverter section, and a power conversion module 723 for the chopper section as a power conversion module 720. In addition, a power conversion module 724 for the reactor, including the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24, is arranged in the housing 10 in a modularized state that cannot be removed from the housing 10. In the uninterruptible power supply 700, the power conversion module 525 for the switch, the power conversion module 722 for the inverter section, the power conversion module 723 for the chopper section, the power conversion module 721 for the converter section, and the power conversion module 724 for the reactor are arranged in this order in a line from the Z1 side to the Z2 side.

[0090] As shown in Figure 22, in the uninterruptible power supply 800, each of the following is housed in the housing 10 in a modularized state that is removable from the housing 10: a power conversion module 821 for the converter section including the converter section 21a, a power conversion module 822 for the inverter section including the inverter section 21b, a power conversion module 823 for the chopper section including the chopper section 21c, and a power conversion module 525 for the switches including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 800 comprises a power conversion module 820 consisting of a power conversion module 821 for the converter section, a power conversion module 822 for the inverter section, and a power conversion module 823 for the chopper section. In addition, a power conversion module 724 for the reactor, including the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24, is arranged in the housing 10 in a modularized state that is not removable from the housing 10. In the uninterruptible power supply 800, the power conversion module 821 for the converter section, the power conversion module 823 for the chopper section, and the power conversion module 822 for the inverter section are arranged in this order in a line from the X1 side to the X2 side. In addition, the power conversion module 525 for the switch, the power conversion module 821 for the converter section, the power conversion module 823 for the chopper section, the power conversion module 822 for the inverter section, and the power conversion module 724 for the reactor are arranged in this order in a line from the Z1 side to the Z2 side.

[0091] As shown in Figure 23, in the uninterruptible power supply 900, each of the following is housed in the housing 10 in a state in which it is modularized so as to be removable from the housing 10: a power conversion module 921 for the converter section including the converter section 21a, a power conversion module 922 for the inverter section including the inverter section 21b, a power conversion module 923 for the chopper section including the chopper section 21c, and a power conversion module 525 for the switches including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 900 comprises a power conversion module 920 consisting of a power conversion module 921 for the converter section, a power conversion module 922 for the inverter section, and a power conversion module 923 for the chopper section. In addition, each of the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are arranged in the housing 10 in a state in which they are not modularized so as to be removable from the housing 10. In the uninterruptible power supply 900, the power conversion module 525 for the switch, the power conversion module 921 for the converter section, the power conversion module 923 for the chopper section, and the power conversion module 922 for the inverter section are arranged in this order in a line from the Z1 side to the Z2 side. In addition, the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are located on the rear side (Y2 side) of the rear conductor section 60. In Figure 23, an example is shown in which the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are arranged in a line from Z1 to Z2 in that order. However, the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 may be arranged in a line from Z1 to Z2 in an order other than this, or the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 may be arranged in a line in the X direction.

[0092] As shown in Figure 24, in the uninterruptible power supply 1000, each of the following is housed in the housing 10 in a state in which it is modularized so as to be removable from the housing 10: a power conversion module 1021 for the converter section including the converter section 21a, a power conversion module 1022 for the inverter section including the inverter section 21b, a power conversion module 1023 for the chopper section including the chopper section 21c, and a power conversion module 525 for the switches including the input switch 26, the output switch 27, and the DC switch 28. In other words, the uninterruptible power supply 900 includes a power conversion module 1020 consisting of a power conversion module 1021 for the converter section, a power conversion module 1022 for the inverter section, and a power conversion module 1023 for the chopper section. In addition, each of the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are arranged in the housing 10 in a state in which they are not modularized so as to be removable from the housing 10. In the uninterruptible power supply 1000, the power conversion module 1021 for the converter section, the power conversion module 1023 for the chopper section, and the power conversion module 1022 for the inverter section are arranged in this order in a line from the X1 side to the X2 side. Also, the power conversion module 525 for the switch, the power conversion module 1021 for the converter section, the power conversion module 1023 for the chopper section, and the power conversion module 1022 for the inverter section are arranged in this order in a line from the Z1 side to the Z2 side. Furthermore, the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are located on the rear side (Y2 side) of the rear conductor section 60. In Figure 24, an example is shown in which the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 are arranged in this order in a line from Z1 to Z2. However, the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 may be arranged in a line from Z1 to Z2 in an order other than this, or the input AC reactor 22, the output first AC reactor 23, and the output second AC reactor 24 may be arranged in a line in the X direction.

[0093] Furthermore, in the uninterruptible power supply 300 of the second modified example described above, the control module 40, the bypass module 30, and the power conversion module 20 are arranged in a line in this order from the Z1 side to the Z2 side in each of the multiple housings 10, but the present invention is not limited to this. In the present invention, as in the uninterruptible power supply 1100 of the tenth modified example shown in Figure 25, the bypass module 30, the control module 40, and the power conversion module 20 may be arranged in a line in this order from the Z1 side to the Z2 side in each of the multiple housings 10. That is, in the uninterruptible power supply 1100, the bypass module 30, the control module 40, and the power conversion module 20 are arranged in a line in the Z direction in each of the multiple housings 10. Furthermore, as shown in the 11th modified uninterruptible power supply 1200 in Figure 26, the power conversion module 20, the bypass module 30, and the control module 40 may be arranged in a line in this order from the Z1 side to the Z2 side in each of the multiple housings 10. That is, in the uninterruptible power supply 1200, the bypass module 30, the control module 40, and the power conversion module 20 are arranged in a line in the Z direction in each of the multiple housings 10. Also, as shown in the 12th modified uninterruptible power supply 1300 in Figure 27, the order in which the bypass module 30, the control module 40, and the power conversion module 20 are arranged may differ from one another in each of the multiple housings 10. As shown in Figure 27, in the uninterruptible power supply 1300, in the X1 side of the two housings 10, the power conversion module 20, the control module 40, and the bypass module 30 are arranged in this order in a line from the Z1 side to the Z2 side, and in the X2 side of the two housings 10, the control module 40, the bypass module 30, and the power conversion module 20 are arranged in this order in a line from the Z1 side to the Z2 side. In other words, in the uninterruptible power supply 1300, in each of the multiple housings 10, the bypass module 30, the control module 40, and the power conversion module 20 are arranged in a line in the Z direction.In the uninterruptible power supply (UPS) 1100, 1200, and 1300, examples are shown in which the power conversion module 20, bypass module 30, and control module 40 are housed in each of the two housings 10. Furthermore, in the UPS 1100, 1200, and 1300, the interface section 1150 includes an interface laminate busbar 1151, and the interface laminate busbar 1151 of each of the two housings is integrally formed to span multiple housings 10. In addition, in Figures 25 to 27, the number of each power conversion module 20, bypass module 30, and control module 40 housed in each of the two housings 10 is simplified (even if there are multiple) and shown as one. Note that the UPS 1100, 1200, and 1300 are examples of the "power supply" as defined in the claims.

[0094] Furthermore, while the second modified example of the uninterruptible power supply 300 described above shows an example in which the power conversion module 20, the bypass module 30, and the control module 40 are housed in each of the multiple housings 10, the present invention is not limited thereto. In the present invention, as shown in the 13th modified example of the uninterruptible power supply 1400 in Figure 28, the 14th modified example of the uninterruptible power supply 1500 in Figure 29, and the 15th modified example of the uninterruptible power supply 1600 in Figure 30, one or two of the power conversion module 20, the bypass module 30, and the control module 40 may be housed in one of the multiple (two) housings 10, while the remaining modules of the power conversion module 20, the bypass module 30, and the control module 40 may be housed in the other housings 10 of the multiple (two) housings 10. This allows for the selection of multiple options for the arrangement of the power conversion module 20, bypass module 30, and control module 40 in multiple housings 10, thereby increasing the degree of freedom in the arrangement of the power conversion module 20, bypass module 30, and control module 40 in multiple housings 10. As shown in Figures 28 and 29, in the uninterruptible power supply 1400 and the uninterruptible power supply 1500, the bypass module 30 and control module 40 are housed in the X1 side housing 10 of the two housings 10, and the power conversion module 20 is housed in the X2 side housing 10 of the two housings 10. As shown in Figure 28, in the uninterruptible power supply 1400, in the X1 side housing 10 of the two housings 10, the control module 40 and the bypass module 30 are arranged in this order in a line from the Z1 side to the Z2 side. That is, in the uninterruptible power supply 1400, in one of the two housings 10, the control module 40 and the bypass module 30 are arranged in the Z direction. As shown in Figure 29, in the uninterruptible power supply 1500, the bypass module 30 and the control module 40 are arranged in a line from the Z1 side to the Z2 side in the X1 side of the two housings 10.In other words, in the uninterruptible power supply 1500, the control module 40 and the bypass module 30 are arranged in the Z direction within one of the two housings 10. As shown in Figure 30, in the uninterruptible power supply 1600, the control module 40 and the bypass module 30 are housed in the X1 side housing 10 of the two housings 10, and the bypass module 30 is housed in the X2 side housing 10 of the two housings 10. In the uninterruptible power supply 1600, the control module 40 and the power conversion module 20 are arranged in this order in a line from the Z1 side to the Z2 side within the X1 side housing 10 of the two housings 10. In other words, in the uninterruptible power supply 1500, the control module 40 and the power conversion module 20 are arranged in the Z direction within one of the two housings 10. In addition, the uninterruptible power supply (UPS) 1400, UPS 1500, and UPS 1600 show an example where the interface section 1150 includes an interface laminate busbar 1151, and each interface laminate busbar 1151 of the two housings is integrally formed so as to span multiple housings 10. Also, in Figures 28 to 30, the number of power conversion modules 20, bypass modules 30, and control modules 40 housed in either of the two housings 10 is simplified (even if there are multiple) and shown as one. Note that the UPS 1400, UPS 1500, and UPS 1600 are examples of "power supply devices" within the scope of the claims.

[0095] Furthermore, in the above embodiment, an example was shown in which the interface portion 50 is the portion of the power wiring PW that connects the inside and outside of the housing 10, but the present invention is not limited to this. In the present invention, as in the 16th modified uninterruptible power supply 1700 shown in Figure 31, the interface portion 1750 may include the portion of the power wiring PW that connects the inside and outside of the housing 10, and may be located adjacent to the housing 10 on either the X1 side, X2 side, or Y2 side of the housing 10, and may extend into at least one of the power supply side panel 111 connected to the AC power supply 120 (see Figure 1) side of the uninterruptible power supply 1700, and the load side panel 112 connected to the load 130 (see Figure 1) side of the uninterruptible power supply 1700. This allows the interface terminal portion 1752 protruding from the side end 1751c of the interface laminate busbar 1751 to be used as a terminal portion for connecting to a portion of the power wiring PW located inside the power supply side panel 111 or the load side panel 112 (for example, a circuit breaker). As a result, compared to the case where the interface terminal section 1752 and the portion of the power wiring PW located inside the power supply side panel 111 or the load side panel 112 are connected by a cable, the wiring length of the power wiring PW can be shortened, and the wiring work for the power wiring PW can be simplified. In Figure 31, an example is shown where the power supply side panel 111 is located on the X1 side of the uninterruptible power supply 1700, and the load side panel 112 is located on the X2 side of the uninterruptible power supply 1700. Also in Figure 31, an example is shown where the interface section 1750 extends into the interior of both the power supply side panel 111 and the load side panel 112. The interface section 1750 may extend into the interior of the power supply side panel 111 but not into the interior of the load side panel 112, or it may not extend into the interior of the power supply side panel 111 but may extend into the interior of the load side panel 112. Furthermore, the configuration of the uninterruptible power supply 1700, other than the interface unit 1750, is substantially the same as that of the uninterruptible power supply 1100 in the 10th modified example described above. Note that the uninterruptible power supply 1700 is an example of a "power supply device" within the scope of the claims.

[0096] Furthermore, in the uninterruptible power supply 1100 of the 10th modification, the uninterruptible power supply 1200 of the 11th modification, the uninterruptible power supply 1300 of the 12th modification, and the uninterruptible power supply 1700 of the 16th modification, examples were shown in which the bypass module 30, the control module 40, and the power conversion module 20 are arranged in a line in the Z direction (vertical direction of the housing) in each of the multiple housings 10, but the present invention is not limited thereto. In the present invention, in a single housing, sets of bypass modules, control modules, and power conversion modules arranged in a line in the vertical direction of the housing may be arranged in multiples in the left-right direction of the housing.

[0097] Furthermore, in the uninterruptible power supply 1400 of the 13th modified example and the uninterruptible power supply 1500 of the 14th modified example, the control module 40 and the bypass module 30 are arranged in the Z direction (vertical direction of the housing) in one of the multiple (two) housings 10, and the power conversion module 20 is housed in the other of the multiple (two) housings 10, but the present invention is not limited thereto. In the present invention, in one housing, the control module and the bypass module, which are arranged in the vertical direction of the housing, and the power conversion module may be arranged in the left-right direction of the housing.

[0098] Furthermore, in the 15th modified example of the uninterruptible power supply 1600 described above, the control module 40 and the power conversion module 20 are arranged in the Z direction (vertical direction of the housing) in one of the multiple (two) housings 10, and the bypass module 30 is housed in the other of the multiple (two) housings 10. However, the present invention is not limited to this. In the present invention, in one housing, the control module and the power conversion module, which are arranged in the vertical direction of the housing, and the bypass module may be arranged in the left-right direction of the housing.

[0099] Furthermore, although the above embodiment shows an example where the "power supply device" in the claim is an uninterruptible power supply 100, the present invention is not limited thereto. In the present invention, the "power supply device" in the claim may be a power supply device other than an uninterruptible power supply, such as the power conditioner 2000 of the 17th modified example shown in Figures 32 and 33. As shown in Figure 32, the power conditioner 2000 converts the DC power supplied from the DC power supply 2120 to supply AC power having a constant voltage, current, and frequency to the load 2130. The power conditioner 2000 is used, for example, in a solar power generation system. When the power conditioner 2000 is used in a solar power generation system, the power conditioner 2000 supplies AC power to the load 2130 either via the grid power supply or without going through the grid power supply.

[0100] As shown in Figure 33, the power conditioner 2000 comprises a housing 10, a power conversion module 2020, a control module 40, an interface unit 2050, and a rear-side conductor unit (not shown). That is, unlike the uninterruptible power supply 100, the power conditioner 2000 does not have a bypass module 30. The power conversion module 2020 and the control module 40 are housed in the housing 10 in a modularized state that allows them to be removed from the housing 10. The control module 40 and the power conversion module 2020 are arranged in this order, from the Z1 side to the Z2 side. The interface unit 2050 is located closer to Z1 than the control module 40. The control module 40 includes a control unit (not shown) that controls the power conversion by the power conversion unit 2021. The interface section 2050 is the part of the power wiring PW that connects the inside and outside of the housing 10, connecting the power conversion section 2021 with the DC power supply 2120 (see Figure 32) (located outside the housing 10) and the load 2130 (see Figure 32) (located outside the housing 10). The interface section 50 includes an interface laminate busbar 2051 and an interface terminal section (not shown). The rear conductor section (not shown) is the part of the power wiring PW that connects the interface section 2050 with the power conversion module 2020. The rear conductor section (not shown) includes a rear laminate busbar (not shown) and an upper terminal section (not shown). Note that in Figure 33, the number of each power conversion module 2020 and control module 40 is simplified and shown as one (even if there are multiple). The configuration of the power conditioner 2000 can be modified as appropriate, similar to the first to sixteenth modified uninterruptible power supply 10s (200, 300, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700) (however, unlike the uninterruptible power supply 100, the power conditioner 2000 does not have a bypass module 30, so it is not exactly the same).

[0101] As shown in Figure 32, the power conversion module 2020 includes a power conversion unit 2021, an input-side DC reactor 2022, an output-side first AC reactor 2023, an output-side second AC reactor 2024, an input-side switch 2026, and an output-side switch 2027. The power conversion unit 2021 converts the DC power supplied from the DC power supply 2120 and supplies it to the load 2130. Specifically, the power conversion unit 2021 includes a chopper unit 2021a and an inverter unit 2021b. The chopper unit 2021a boosts the DC power input from the DC power supply 2120 and supplies it to the inverter unit 2021b. The inverter unit 2021b converts the input DC power into AC power. The input DC reactor 2022 is connected to the DC power supply 2120 side of the power conversion unit 2021 (chopper unit 2021a). The output first AC reactor 2023 is connected to the load 2130 side of the power conversion unit 2021 (inverter unit 2021b). The output second AC reactor 2024 is connected to the load 2130 side of the output first AC reactor 2023. The input switch 2026 is connected to the DC power supply 2120 side of the output first AC reactor 2023. The output switch 2027 is connected to the load 2130 side of the output second AC reactor 2024. As shown in Figure 33, the DC power supply side panel 2111 is connected to the DC power supply 2120 side of the power conditioner 2000, and the load side panel 2112 is connected to the load 2130 side of the power conditioner 2000.

[0102] 10 Enclosure 20, 520, 620, 720, 820, 920, 1020, 2020 Power conversion module 20a Module-side connector (of the power conversion module) 20b Module fan (of the power conversion module) 21, 2021 Power conversion section 30 Bypass module 31 Bypass circuit section 40 Control module 41 Control section 50, 250, 350, 1150, 1750, 2050 Interface section 51, 351, 1151, 1751, 2051 Interface laminate busbar 51a Busbar (of the interface laminate busbar) 51b Insulating member (of the interface laminate busbar) 51c, 1751c Side end (of the interface laminate busbar) 52, 252, 1752 Interface terminal section 52a Rear side terminal section 52b, 352b Left terminal section 52c, 352c Right terminal section 52d, 352d Upward-bent front terminal section 60, 260 Rear conductor section 61 Rear laminate busbar 61a Busbar (of the rear laminate busbar) 61b Insulating member (of the rear laminate busbar) 61c Upper end (of the rear laminate busbar) 62 Upper end terminal section 63a Laminate side connector 64a Ventilation hole (formed in a position overlapping with the power conversion module of the rear laminate busbar) 100 (100A, 100B), 200, 300, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700 Uninterruptible Power Supply (Power Supply Unit) 110, 410 Uninterruptible Power Supply System 111 AC Power Supply Side Panel 112, 2112 Load Side Panel 120 AC Power Supply 130, 2130 Load 252d Downward-bent Front Terminal Section 2000 Power Conditioner (Power Supply Unit) 2120 DC Power Supply 2111 DC Power Supply Side Panel CB (Constitutes control wiring) Busbar CW Control wiring IM Insulating material LB Laminate busbar PB (Constitutes power wiring) Busbar PW Power wiring

Claims

1. The device comprises: a housing; a power conversion module housed in the housing in a modular manner so as to be removable from the housing, including a power conversion unit that converts AC power supplied from an AC power source and supplies it to a load; a bypass module housed in the housing in a modular manner so as to be removable from the housing, including a bypass circuit unit that supplies AC power supplied from the AC power source to the load without going through the power conversion unit; a control module housed in the housing in a modular manner so as to be removable from the housing, including a control unit that controls the power conversion by the power conversion unit; an interface unit housed above or below the power conversion module, the bypass module and the control module in the housing, which is the part of the power wiring that connects the power conversion unit and the bypass circuit unit to the AC power source and the load, which connects the inside and outside of the housing; and a rear-side conductor unit housed on the rear side of the housing so as to be removable from the housing, which connects the interface unit to the power conversion module and the bypass module. An uninterruptible power supply (UPS) in which at least one of the interface portion and the rear conductor portion includes a laminate busbar formed by stacking a plurality of plate-shaped busbars constituting the power wiring and insulating members disposed between the busbars.

2. The uninterruptible power supply according to claim 1, wherein both the interface portion and the rear conductor portion include the laminate busbar.

3. The uninterruptible power supply according to claim 1, wherein the interface portion includes an interface laminate busbar which is a laminate busbar stacked in the vertical direction of the housing and extending in a plane perpendicular to the vertical direction of the housing, and an interface terminal portion which protrudes from the side end of the interface laminate busbar which is the end in the direction perpendicular to the vertical direction of the housing.

4. The uninterruptible power supply according to claim 3, wherein the interface terminal portion protrudes from the side end of the interface laminate busbar toward the rear side of the housing and includes a rear terminal portion for connecting the interface laminate busbar to the rear conductor portion.

5. The uninterruptible power supply according to claim 4, wherein the interface portion is housed above the power conversion module, the bypass module and the control module in the housing, and the rear conductor portion includes a rear laminate busbar which is a laminate busbar stacked in the front-rear direction of the housing and extends in a plane perpendicular to the front-rear direction of the housing, and an upper terminal portion which protrudes upward from the upper end of the rear laminate busbar and is connected to the rear terminal portion of the interface laminate busbar.

6. The uninterruptible power supply according to claim 3, wherein the interface portion is housed above the power conversion module, the bypass module and the control module in the housing, and the interface terminal portion includes: a left terminal portion that protrudes straight from the side end of the interface laminate busbar toward the left side of the housing; a right terminal portion that protrudes straight from the side end of the interface laminate busbar toward the right side of the housing; a rear terminal portion that protrudes straight from the side end of the interface laminate busbar toward the rear side of the housing; and an upward-bent front terminal portion that protrudes from the side end of the interface laminate busbar toward the front side of the housing and whose tip is bent so as to extend toward the upper side of the housing.

7. The uninterruptible power supply according to claim 3, wherein the interface portion is housed in the housing below the power conversion module, the bypass module and the control module, and the interface terminal portion includes: a left terminal portion that protrudes straight from the side end of the interface laminate busbar toward the left side of the housing; a right terminal portion that protrudes straight from the side end of the interface laminate busbar toward the right side of the housing; a rear terminal portion that protrudes straight from the side end of the interface laminate busbar toward the rear side of the housing; and a downward-bent front terminal portion that protrudes from the side end of the interface laminate busbar toward the front side of the housing and whose tip is bent so as to extend toward the bottom of the housing.

8. The uninterruptible power supply according to claim 1, wherein the rear conductor portion includes a rear laminate busbar which is the laminate busbar, and the housing is housed on the rear side of the power conversion module, the bypass module and the control module, and further comprises control wiring connecting the power conversion portion and the bypass module and the control module, wherein in the rear laminate busbar, in addition to the plurality of plate-shaped busbars constituting the power wiring and the insulating member being laminated, the plurality of plate-shaped busbars constituting the control wiring and the insulating member are laminated, or in addition to the plurality of plate-shaped busbars constituting the power wiring and the insulating member being laminated, a circuit board including a circuit constituting the control wiring is fixed to the laminated portion where the plurality of plate-shaped busbars and the insulating member are laminated.

9. The power conversion module further includes a module-side connector provided on the rear side of the power conversion module, the rear-side conductor portion includes a rear-side laminate busbar which is a laminate busbar, and a laminate-side connector provided on the front side of the rear-side laminate busbar, and the module-side connector of the power conversion module and the laminate-side connector of the rear-side laminate busbar are configured to be insertable and detachable by sliding in the front-rear direction of the housing, as described in claim 1.

10. The uninterruptible power supply according to claim 1, wherein the rear conductor portion includes a rear laminate busbar which is the laminate busbar, the power conversion module further includes a module fan for generating cooling air from the front to the rear of the housing for cooling the inside of the power conversion module, and the rear laminate busbar is formed in a position that overlaps with the power conversion module when viewed from the front to the rear of the housing and includes ventilation holes for passing the cooling air in the front to the rear direction of the housing.

11. The uninterruptible power supply according to claim 1, wherein the interface section includes an interface laminate busbar which is the laminate busbar, a plurality of housings are provided so as to be adjacent to each other in the left-right direction of the housing, and the interface laminate busbar of each of the plurality of housings is integrally formed so as to span across the plurality of housings.

12. The uninterruptible power supply according to claim 1, wherein a plurality of the housings are arranged adjacent to each other in the left-right direction of the housing, and the power conversion module, the bypass module, and the control module are housed in each of the plurality of housings, or one or two of the power conversion module, the bypass module, and the control module are housed in one of the plurality of housings, and the remaining modules of the power conversion module, the bypass module, and the control module are housed in the other housings of the plurality of housings.

13. An uninterruptible power supply (UPS) comprising: an AC power supply side panel connected to the AC power supply side of the UPS; and a load side panel connected to the load side of the UPS, wherein the UPS comprises: a housing; a power conversion module housed in the housing in a modular manner so as to be removable from the housing, and including a power conversion unit that converts AC power supplied from the AC power supply and supplies it to the load; a bypass module housed in the housing in a modular manner so as to be removable from the housing, and including a bypass circuit unit that supplies AC power supplied from the AC power supply to the load without going through the power conversion unit; a control module housed in the housing in a modular manner so as to be removable from the housing, and including a control unit that controls the power conversion by the power conversion unit; and an interface unit housed above or below the power conversion module, the bypass module, and the control module in the housing, which is the part that connects the inside and outside of the housing of the power wiring that connects the power conversion unit and the bypass circuit unit to the AC power supply and the load. An uninterruptible power supply system comprising: a housing located on the rear side of the power conversion module, the bypass module, and the control module, and a rear-side conductor portion which is a portion of the power wiring that connects the interface portion to the power conversion module and the bypass module, wherein at least one of the interface portion and the rear-side conductor portion includes a laminate busbar formed by stacking a plurality of plate-shaped busbars constituting the power wiring and insulating members disposed between the busbars.

14. Power supply device comprising: a housing; a power conversion module housed in the housing in a modular state so as to be removable from the housing, which includes a power conversion unit that converts AC power supplied from an AC power source or DC power supplied from a DC power source and supplies it to a load; a control module housed in the housing in a modular state so as to be removable from the housing, which includes a control unit that controls the power conversion by the power conversion unit; an interface section housed in the housing above or below the power conversion module and the control module, which includes a portion of the power wiring connecting the power conversion unit, the AC power source or the DC power source, and the load, which connects the inside and outside of the housing; and a rear-side conductor section housed in the housing behind the power conversion module and the control module, which is a portion of the power wiring that connects the interface section and the power conversion module, wherein at least one of the interface section and the rear-side conductor section includes a laminate busbar formed by stacking a plurality of plate-shaped busbars constituting the power wiring and insulating members arranged between the busbars.

15. The power supply device according to claim 14, wherein the interface portion includes an interface laminate busbar which is a laminate busbar stacked in the vertical direction of the housing and extending in a plane perpendicular to the vertical direction of the housing, and an interface terminal portion which protrudes from the side end which is the end of the interface laminate busbar in a direction perpendicular to the vertical direction of the housing, and the interface laminate busbar is arranged adjacent to the housing on either the left, right, or rear side of the housing and extends into the interior of at least one of a power supply side panel connected to the AC power supply side or DC power supply side of the power supply device, and a load side panel connected to the load side of the power supply device.

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