JP2024165570A - Power Conversion Equipment - Google Patents

Abstract

To provide a power conversion device with suppressed current variation.SOLUTION: A power conversion device 100 includes six arranged reactor components 10, an input terminal portion 21 connected to each reactor component via an input bus bar 30, and an output terminal portion 22 connected to each reactor component via an output bus bar 40. The input terminal portion is arranged adjacent to a first reactor component 10a arranged at one end in the arrangement direction of the multiple reactor components. The output terminal portion is arranged adjacent to a second reactor component 10b arranged at the other end in the arrangement direction of the multiple reactor components.SELECTED DRAWING: Figure 1

Description

This disclosure relates to a power conversion device.

As disclosed in Patent Document 1, there is a device equipped with multiple reactor components.

JP 2005-294456 A

The power conversion device may be configured with wiring connected to each of the multiple reactor components. The wiring includes input wiring that connects the input terminal unit to each reactor component, and output wiring that connects the output terminal unit to each reactor component. However, depending on the positional relationship between each reactor component and the input terminal unit and the output terminal unit, the length of the wiring connected to each reactor component may differ in the power conversion device. Therefore, there is a risk that the current in each reactor component will vary in the power conversion device.

One disclosed objective is to provide a power conversion device in which current variation is suppressed.

The power conversion device disclosed herein is
A power conversion device that converts electric power,
A plurality of arranged reactor components (10);
An input terminal unit (21) connected to each reactor component via an input wiring (30);
an output terminal unit (22) connected to each reactor component via an output wiring (40);
the input terminal portion is disposed adjacent to a first reactor component disposed at one end in an arrangement direction of the plurality of reactor components,
The output terminal portion is characterized in that it is arranged adjacent to the second reactor component arranged at the other end in the arrangement direction.

This allows the power conversion device to equalize or reduce the difference in length between the portions of the input wiring and output wiring connected to each of the multiple reactor components. As a result, the power conversion device can suppress the variation in the current flowing through each reactor component.

Another power conversion device disclosed herein is
A power conversion device that converts electric power,
Two arranged reactor components (10);
An input terminal unit (21) connected to each reactor component via an input wiring (30);
an output terminal unit (22) connected to each reactor component via an output wiring (40);
the input terminal portion is disposed on the opposite side of the two reactor components from the output terminal portion, and is disposed in the center of the two reactor components in the arrangement direction;
The output terminal portion is characterized in that it is disposed in the center of the two reactor components in the arrangement direction.

This allows the power conversion device to make the lengths of the parts of the input wiring and output wiring connected to the two reactor components equal or reduce the difference between them. Therefore, the power conversion device can suppress the variation in the current flowing through each reactor component.

The various aspects disclosed in this specification employ different technical means to achieve their respective objectives. The claims and the reference symbols in parentheses in this section are illustrative of the corresponding relationships with the embodiments described below, and are not intended to limit the technical scope. The objectives, features, and advantages disclosed in this specification will become clearer with reference to the detailed description that follows and the accompanying drawings.

1 is a plan view showing a schematic configuration of a power conversion device according to a first embodiment. FIG. 2 is a plan view taken from a direction II in FIG. 1 . FIG. 2 is a cross-sectional view taken along line III-III in FIG. 4 is a plan view showing the positional relationship between a plurality of reactor components, an input terminal portion, and an output terminal portion. FIG. FIG. 11 is a plan view showing a schematic configuration of a power conversion device according to a second embodiment. FIG. 13 is a plan view showing a schematic configuration of a power conversion device according to a third embodiment.

In the following, several embodiments for implementing the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to matters described in the preceding embodiment may be given the same reference numerals, and duplicated descriptions may be omitted. In each embodiment, when only a part of the configuration is described, other parts of the configuration can be applied by referring to the other embodiment described previously. In the following, the three mutually orthogonal directions are referred to as the X direction, Y direction, and Z direction. Furthermore, when the X direction is one direction, the Y direction can be said to be the orthogonal direction to the one direction.

<Power conversion device>
A power conversion device 100 will be described with reference to Figs. 1 and 3. The power conversion device 100 is a device that converts power. The power conversion device 100 can be applied to, for example, a boost converter or an inverter. Here, a boost converter is adopted as an example of the power conversion device 100. Furthermore, in this embodiment, a multi-phase converter in which a plurality of reactor components 10 are connected in parallel is adopted as the boost converter. The power conversion device 100 is, for example, a circuit that boosts a power supply voltage VL to an output voltage VH (>VL). The power conversion device 100 can be mounted on a vehicle such as an electric vehicle or a fuel cell vehicle.

As shown in FIG. 1, the power conversion device 100 includes, as electrical components, an array of multiple reactor components 10, an input terminal section 21, an output terminal section 22, an input bus bar 30, and an output bus bar 40. The power conversion device 100 also includes, as electrical components, a terminal block 50, a switching section 60, a capacitor 70, a first bus bar 81, a second bus bar 82, and the like. The power conversion device 100 also includes a case 90 that houses the electrical components.

The case 90 is composed mainly of metal and the like. The case 90 has, for example, a bottom 91 and an annular side wall 92 connected to the bottom 91. The side wall 92 protrudes from the bottom 91 to one side. In the case 90, the bottom 91 and the side wall 92 form a storage space for storing electrical components.

As shown in Figures 1 and 3, the case 90 has a groove on the side opposite the storage section through which the refrigerant flows. The refrigerant is liquid, such as cooling water. The groove is covered with a cover 94. With the groove of the case 90 covered with the cover 94, a refrigerant flow path 93 is formed. The refrigerant flow path 93 has an inlet 93a and an outlet 93b that are not covered by the cover 94. The inlet 93a is provided at one end of the case 90 in the X direction. The outlet 93b is provided at the other end of the case 90 in the X direction. Thus, the refrigerant flow path 93 is provided along the X direction.

The refrigerant flows into the refrigerant flow passage 93 from the inlet 93a and flows out from the outlet 93b. The refrigerant flow passage 93 is provided mainly to cool the multiple reactor components 10. The portion of the bottom 91 facing the refrigerant flow passage 93 can also be considered a cooling section. Therefore, the cooling section is provided along the X direction. The refrigerant flow passage 93 shown by the two-dot chain line in FIG. 1 can also be considered as the cooling section of the bottom 91.

The positional relationship between the inlet 93a and the outlet 93b is not limited to the configuration shown in FIG. 1. The configuration of the refrigerant flow path 93 is not limited to the above.

In this embodiment, a configuration including six reactor components 10 is adopted. It can be said that the power conversion device 100 includes reactor components 10 for six phases. The power conversion device 100 includes multiple reactor components 10 to accommodate a large current.

The reactor components 10 are attached to a cooling section that is a part of the case 90. Each reactor component 10 can also be called a one-phase reactor component, a two-phase reactor component, a three-phase reactor component, a four-phase reactor component, a five-phase reactor component, or a six-phase reactor component. In FIG. 1 and other figures, the reactor components are arranged in the following order from the input terminal section 21 side, which will be described later: one-phase reactor component, two-phase reactor component, three-phase reactor component, four-phase reactor component, five-phase reactor component, and six-phase reactor component.

The number of reactor components 10 is not limited to this. The power conversion device 100 may include multiple reactor components 10. However, it is preferable that the power conversion device 100 includes three or more reactor components 10.

Each reactor component 10 is connected to the input terminal section 21 via the input bus bar 30. The reactor component 10 is also connected to the output terminal section 22 via the output bus bar 40. The input bus bar 30 corresponds to the input wiring. The output bus bar 40 corresponds to the output wiring. The configuration and arrangement of the reactor components 10 will be described in detail later.

The input terminal section 21 includes, for example, an input terminal and a terminal case in which the input terminal is provided. The input bus bar 30 is connected to the input terminal of the input terminal section 21. Reference numeral 21a indicates a terminal connection section including the input terminal in the input terminal section 21. It can be said that the input bus bar 30 protrudes from the terminal connection section 21a.

The input bus bar 30 is composed of a plate-shaped conductive material, etc. The input bus bar 30 is provided in common to multiple reactor components 10. In other words, it can be said that the power conversion device 100 has one input bus bar 30. The input bus bar 30 has multiple connection parts 31 to 36 provided to a base part 37. The base part 37 and the multiple connection parts 31 to 36 are provided integrally. Each connection part 31 to 36 is individually connected to the reactor terminal 12 of each reactor component 10.

The connection portion 31 is a portion that is connected to the one-phase reactor component 10. The connection portion 32 is a portion that is connected to the two-phase reactor component 10. The connection portion 33 is a portion that is connected to the three-phase reactor component 10. The connection portion 34 is a portion that is connected to the four-phase reactor component 10. The connection portion 35 is a portion that is connected to the five-phase reactor component 10. The connection portion 36 is a portion that is connected to the six-phase reactor component 10.

The present disclosure is not limited to this, and an input bus bar 30 may be provided for each reactor component 10. In this case, the power conversion device 100 will have the same number of input bus bars 30 as the number of reactor components 10.

The output terminal section 22 includes, for example, an output terminal and a terminal case in which the output terminal is provided. The output bus bar 40 is connected to the output terminal of the output terminal section 22. Reference numeral 22a indicates a terminal connection section including the output terminal in the output terminal section 22. It can be said that the output bus bar 40 protrudes from the terminal connection section 22a.

The output bus bar 40 is composed of a plate-shaped conductive material, etc. The output bus bar 40 is provided individually for each of the reactor components 10. In other words, the power conversion device 100 is equipped with six output bus bars 40. Here, the output bus bars 41 to 46 of each phase are collectively referred to as the output bus bar 40.

Each phase output bus bar 41 to 46 is individually connected to the reactor terminal 13 of each reactor component 10. Note that reference numeral 41 is also referred to as a 1-phase output bus bar, reference numeral 42 as a 2-phase output bus bar, reference numeral 43 as a 3-phase output bus bar, reference numeral 44 as a 4-phase output bus bar, reference numeral 45 as a 5-phase output bus bar, and reference numeral 46 as a 6-phase output bus bar.

The input busbar 30 and the output busbar 40 in each phase can also be referred to as phase busbars. That is, each phase busbar is composed of the portion between the reactor component 10 of each phase and the input terminal portion 21 in the input busbar 30, and the portion between the reactor component 10 of each phase and the output terminal portion 22 in the output busbar 40. For example, the connection portion 31 in the input busbar 30 and the one-phase output busbar 41 in the output busbar 40 can be referred to as a one-phase busbar. Also, a part of the connection portion 31, the base portion 37, and the connection portion 36 in the input busbar 30, and the six-phase output busbar 46 in the output busbar 40 can be referred to as a six-phase busbar.

The terminal block 50 includes a first bus bar 81 and a resin case in which the first bus bar 81 is provided. The first bus bar 81 is connected to the output terminal section 22. The first bus bar 81 is also connected to the switching section 60. The switching section 60 is connected to the capacitor 70 via the second bus bar 82. In this embodiment, as an example, the terminal block 50 provided with a current sensor 51 is used. Note that the first bus bar 81 and the second bus bar 82 are illustrated in a simplified manner.

The switching unit 60 includes a plurality of switching elements. The switching unit 60 may also include a cooler for cooling each switching element. The switching elements are provided corresponding to each reactor component 10. Therefore, it can be said that the power conversion device 100 includes switching elements for six phases. The multiple switching elements are connected in parallel.

In addition, two switching elements connected in series may be provided for each reactor component 10. In other words, the two switching elements are connected in series between the wiring on the high potential side and the wiring on the low potential side. In this case, the reactor component 10 is connected between the two switching elements.

The capacitor 70 includes a smoothing capacitor and the like. The smoothing capacitor is provided on the output side of the multiple reactor components 10. The smoothing capacitor is connected to the high-potential side wiring and the low-potential side wiring. The smoothing capacitor is connected in parallel to the multiple switching elements. Note that the configuration of the power conversion device 100 described above is merely one example.

<Reactor parts>
The reactor component 10 will be described with reference to Figures 1 to 4. In Figure 2, a case 90 and other components are omitted in order to simplify the drawing. In Figure 4, other components are omitted in order to make it easier to understand the positional relationship between the reactor component 10 and the terminals 21 and 22.

As shown in FIG. 1 etc., the reactor part 10 includes a coil 11 wound around a core, and a resin part 14 that fixes the core and the coil 11. The coil 11 is exposed from a part of the resin part 14. At least the reactor terminals 12, 13 of the coil 11 are exposed from the resin part 14. Note that the multiple reactor parts 10 have the same configuration.

As shown in FIG. 1 and other figures, the multiple reactor components 10 are arranged (distributed) in the X direction. In the present embodiment, as an example, a configuration is adopted in which the multiple reactor components 10 are arranged in a row.

The terminal block 50, the switching unit 60, and the capacitor 70 are arranged side by side in the Y direction. The terminal block 50 is arranged facing the second reactor component 10b arranged at the end of the multiple reactor components 10. Hereinafter, the direction in which the multiple reactor components 10 are arranged is also referred to as the arrangement direction. In this embodiment, the arrangement direction coincides with the X direction. Furthermore, the direction perpendicular to the arrangement direction coincides with the Y direction. Therefore, it can be said that the multiple reactor components 10 are arranged with their positions aligned in the perpendicular direction. Furthermore, as shown in FIG. 2, the multiple reactor components 10 are arranged with their positions aligned in the Z direction.

As shown in Figs. 1 and 3, the multiple reactor components 10 are arranged on the refrigerant flow path 93 (cooling section). Therefore, the multiple reactor components 10 are cooled by the refrigerant. Note that the multiple reactor components 10 may also be configured to be cooled by cooling air (air-cooled). In the case of air-cooling, the degree of freedom in arranging the multiple reactor components 10 is relatively high. In contrast, in this embodiment, cooling is performed by the refrigerant. Therefore, the multiple reactor components 10 need to be arranged in the opposing area of the refrigerant flow path 93. Therefore, it can be said that the power conversion device 100 has less freedom in arranging the multiple reactor components 10 than air-cooling.

As shown in Figs. 1 and 4, the input terminal section 21 is arranged on the opposite side of the output terminal section 22, sandwiching the multiple reactor components 10. In the power conversion device 100, the input terminal section 21, the multiple reactor components 10, and the output terminal section 22 are arranged in this order in the Y direction.

This allows the power conversion device 100 to prevent the shapes of the input bus bar 30 and the output bus bar 40 from becoming complicated. In other words, the power conversion device 100 can simplify the wiring of the input bus bar 30 and the output bus bar 40. In other words, the power conversion device 100 can simplify the wiring of the input bus bar 30 and the output bus bar 40 compared to a configuration (comparative example) in which the input terminal portion 21 and the output terminal portion 22 are arranged on the same side based on multiple reactor components 10. Furthermore, the power conversion device 100 can shorten the length of the input bus bar 30 or the output bus bar 40 compared to the comparative example.

However, the input terminal portion 21 and the output terminal portion 22 are not limited to this, and may be provided in positions facing the multiple reactor components 10 in the X direction or Z direction.

As shown in FIG. 4, the input terminal section 21 is disposed adjacent to the first reactor component 10a (one-phase reactor component) disposed at one end of the multiple reactor components 10 in the arrangement direction. In other words, the input terminal section 21 is provided at a position where no other reactor components 10 are disposed between it and the first reactor component 10a. Even if other components are disposed between the input terminal section 21 and the first reactor component 10a, they can still be said to be adjacent to each other. These other components may be, for example, detection elements such as a current sensor 51 or circuit elements.

Here, as an example, an example is used in which the input terminal portion 21 is arranged in the first opposing area OA1 that faces the first reactor component 10a. The first opposing area OA1 is the opposing area of the first reactor component 10a in a direction perpendicular to the arrangement direction. It is sufficient that at least a portion of the input terminal portion 21 is arranged in the first opposing area OA1. In particular, it is preferable that the terminal connection portion 21a of the input terminal portion 21 is arranged in the first opposing area OA1.

On the other hand, the output terminal section 22 is arranged adjacent to the second reactor component 10b (six-phase reactor component) arranged at the other end of the arrangement direction of the multiple reactor components 10. In other words, the output terminal section 22 is provided at a position where no other reactor components 10 are arranged between it and the second reactor component 10b. Also, even if other components are arranged between the output terminal section 22 and the second reactor component 10b, they can still be said to be adjacent to each other. Note that these other components are, for example, detection elements such as the current sensor 51 and circuit elements.

Here, as an example, an example is adopted in which the output terminal portion 22 is arranged in the second facing area OA2 facing the second reactor component 10b. The second facing area OA is the facing area of the second reactor component 10b in a direction perpendicular to the arrangement direction. Also, it is sufficient that at least a part of the output terminal portion 22 is arranged in the second facing area OA2. In particular, it is preferable that the terminal connection portion 22a of the output terminal portion 22 is arranged in the second facing area OA2. Note that the second facing area OA2 is an area in the opposite direction to the first facing area OA1 in the Y direction. This allows the power conversion device 100 to have shorter lengths of the input bus bar 30 and the output bus bar 40 than a configuration in which the terminal portions 21, 22 are arranged outside the facing areas OA1, OA2.

In this way, the input terminal portion 21 and the output terminal portion 22 are arranged diagonally with respect to the multiple reactor components 10 in the XY plane. The output terminal portion 22 is also connected to the switching portion 60 via the terminal block 50. Therefore, it is desirable to arrange the output terminal portion 22 in a position close to the terminal block 50. Therefore, the output terminal portion 22 is arranged in the second opposing area OA2. The input terminal portion 21 is arranged in a position away from the output terminal portion 22 so that the lengths of the input bus bar 30 and the output bus bar 40 in each phase are equal or the difference is small. The output terminal portion 22 may be connected to the switching portion 60 without going through the terminal block 50. The output terminal portion 22 may also be included in the terminal block 50.

＜Effects＞
In the power conversion device 100, the input terminal portion 21 is disposed adjacent to the first reactor component 10a, and the output terminal portion 22 is disposed adjacent to the second reactor component 10b. Therefore, the power conversion device 100 can equalize the lengths of the portions of the input bus bar 30 and the output bus bar 40 connected to the multiple reactor components 10, or reduce the difference therebetween. It can also be said that the power conversion device 100 can equalize the total lengths of the input bus bar 30 and the output bus bar 40 of each phase, or reduce the difference therebetween. In other words, the power conversion device 100 can equalize the lengths of the bus bars of each phase, or reduce the difference therebetween.

For example, the 1-phase bus bar has the same length as the 6-phase bus bar and other phase bus bars, or the difference is small. Furthermore, the power conversion device 100 can make the lengths of the phase bus bars equal or make the difference smaller than in a configuration in which the input terminal portion 21 and the output terminal portion 22 are arranged in the opposing area of the reactor component 10 located in the center. Furthermore, the power conversion device 100 can make the lengths of the phase bus bars equal or make the difference smaller even in the case of multiple reactor components 10 cooled by a refrigerant.

However, if each reactor component 10 is designed on the assumption that the current value varies, the size of the reactor component 10 will be large. However, the power conversion device 100 can make the lengths of the bus bars for each phase equal or reduce the difference, so the variation in the DC resistance value of each phase can be reduced. Therefore, the power conversion device 100 can suppress the variation in the current flowing through each reactor component 10. In other words, the power conversion device 100 can reduce the variation in the current value in each phase. Therefore, the power conversion device 100 can suppress the increase in size of each reactor component 10.

Preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the above embodiments, and various modifications are possible without departing from the spirit of the present disclosure. Below, the second and third embodiments are described as other forms of the present disclosure. The present disclosure is not limited to the combinations shown in the embodiments, and can be implemented in various combinations.

Second Embodiment
A power conversion device 100 according to a second embodiment will be described with reference to Fig. 5. In this embodiment, differences from the first embodiment will be mainly described. In this embodiment, the arrangement of the reactor components 10 and the positions of the terminals 21 and 22 are different from those of the first embodiment.

The multiple reactor components 10 are arranged diagonally from the input terminal portion 21 to the output terminal portion 22. In other words, the multiple reactor components 10 are arranged with their positions shifted in the Y direction. It can also be said that the multiple reactor components 10 are arranged at an angle with respect to the X direction. Furthermore, it can also be said that the multiple reactor components 10 are arranged diagonally with respect to the arrangement direction described in the first embodiment. Therefore, the direction in which the multiple reactor components 10 are arranged in this embodiment is different from the arrangement direction in the first embodiment. Note that the positions of each terminal portion 21, 22 in the X direction are the same as in the first embodiment.

Even if multiple reactor components 10 are arranged in this manner, the power conversion device 100 can achieve the same effects as the first embodiment.

However, dead space is formed in the power conversion device 100. Therefore, the power conversion device 100 arranges the terminals 21 and 22 to effectively utilize the dead space. The dead spaces are the third facing area OA3 and the fourth facing area OA4.

The third opposing region OA3 is an area facing the second reactor component 10b in the X direction. More specifically, the third opposing region OA3 is an area facing the second reactor component 10b in the X direction, and an area facing other reactor components 10, such as the first reactor component 10a, in the Y direction.

The fourth opposing region OA4 is an area facing the first reactor component 10a in the X direction. More specifically, the fourth opposing region OA4 is an area facing the first reactor component 10a in the X direction, and an area facing other reactor components 10, such as the second reactor component 10b, in the Y direction.

The input terminal portion 21 is disposed in the third opposing region OA3. Furthermore, it is sufficient that at least a portion of the input terminal portion 21 is disposed in the third opposing region OA3. In particular, it is preferable that the terminal connection portion 21a of the input terminal portion 21 is disposed in the third opposing region OA3.

On the other hand, the output terminal portion 22 is disposed in the fourth opposing region OA4. Also, it is sufficient that at least a portion of the output terminal portion 22 is disposed in the fourth opposing region OA4. In particular, it is preferable that the terminal connection portion 22a of the output terminal portion 22 is disposed in the fourth opposing region OA4.

This allows the power conversion device 100 to effectively utilize dead space. As a result, the power conversion device 100 can be made smaller in size in the Y direction.

Third Embodiment
A power conversion device 100 according to a third embodiment will be described with reference to Fig. 6. In this embodiment, differences from the first embodiment will be mainly described. The present embodiment differs from the first embodiment in the number of reactor components 10 and the positions of the terminals 21, 22.

The power conversion device 100 of this embodiment includes two reactor components 10 arranged in a row. It can also be said that the power conversion device 100 includes a reactor section that includes only two reactor components 10 as a set. The two reactor components 10 are arranged in the X direction. Therefore, the arrangement direction of the two reactor components 10 is the same as in the first embodiment.

The input terminal portion 21 is disposed on the opposite side of the output terminal portion 22 across the two reactor components 10. The input terminal portion 21 is disposed in the center of the two reactor components 10 in the arrangement direction. The dashed dotted line CL in FIG. 6 is a center line passing through the centers of the two reactor components 10. Therefore, it is sufficient that at least a portion of the input terminal portion 21 is disposed on the center line CL. In particular, it is preferable that the terminal connection portion 21a of the input terminal portion 21 is disposed on the center line CL.

Similarly, the output terminal portion 22 is disposed in the center of the two reactor components 10 in the arrangement direction. It is sufficient that at least a portion of the output terminal portion 22 is disposed on the center line CL. In particular, it is preferable that the terminal connection portion 22a of the output terminal portion 22 is disposed on the center line CL.

This allows the power conversion device 100 to achieve the same effects as the first embodiment.

The structure including the two reactor components 10, the input terminal portion 21, the output terminal portion 22, the input bus bar 30, and the output bus bar 40 can be called a reactor device. The power conversion device 100 may include multiple reactor devices. The power conversion device 100 configured in this manner can also achieve the same effects as the first embodiment.

Although the present disclosure has been described with reference to an embodiment, it is understood that the present disclosure is not limited to the embodiment or structure. The present disclosure also encompasses various modifications and modifications within the scope of equivalents. In addition, while various combinations and forms are shown in the present disclosure, other combinations and forms including only one element, more, or less are also within the scope and concept of the present disclosure.

10... Reactor part, 21... Input terminal part, 22... Output terminal part, 30... Input bus bar, 40... Output bus bar, 100... Power conversion device

Claims (8)

A power conversion device that converts electric power,
A plurality of arranged reactor components (10);
An input terminal unit (21) connected to each reactor component via an input wiring (30);
an output terminal unit (22) connected to each reactor component via an output wiring (40);
the input terminal portion is disposed adjacent to a first reactor component disposed at one end in an arrangement direction of the plurality of reactor components,
The output terminal portion is disposed adjacent to a second reactor component disposed at the other end in the arrangement direction. The power conversion device according to claim 1, wherein the input terminal section is disposed on the opposite side of the output terminal section, sandwiching the reactor components therebetween. the input terminal portion is disposed in a first opposing area (OA1) opposing the first reactor component in a direction perpendicular to the arrangement direction,
The power conversion device according to claim 2 , wherein the output terminal portion is disposed in a second opposing area (OA2) opposing the second reactor component in the orthogonal direction. The power conversion device according to claim 3, wherein the reactor components are arranged so that their positions in the orthogonal direction are aligned. The power conversion device according to claim 3, wherein the reactor components are arranged diagonally from the input terminal section to the output terminal section. the input terminal portion is disposed in a third opposing area (OA3) opposing the second reactor component in the arrangement direction,
The power conversion device according to claim 5 , wherein the output terminal portion is disposed in a fourth opposing area (OA4) opposing the first reactor component in the arrangement direction. A power conversion device that converts electric power,
Two arranged reactor components (10);
An input terminal unit (21) connected to each reactor component via an input wiring (30);
an output terminal unit (22) connected to each reactor component via an output wiring (40);
the input terminal portion is disposed on the opposite side of the two reactor components from the output terminal portion, and is disposed at the center of the two reactor components in an arrangement direction;
The power conversion device, wherein the output terminal portion is disposed in the center of the two reactor components in the arrangement direction. the two reactor components, the input wiring, the input terminal unit, the output wiring, and the output terminal unit are configured as one reactor device,
The power conversion device according to claim 7 , comprising a plurality of the reactor devices.

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