WO2022176900A1 - Dispositif de conversion de puissance - Google Patents

Dispositif de conversion de puissance Download PDF

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Publication number
WO2022176900A1
WO2022176900A1 PCT/JP2022/006136 JP2022006136W WO2022176900A1 WO 2022176900 A1 WO2022176900 A1 WO 2022176900A1 JP 2022006136 W JP2022006136 W JP 2022006136W WO 2022176900 A1 WO2022176900 A1 WO 2022176900A1
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WO
WIPO (PCT)
Prior art keywords
rib
top plate
rib portions
substrate
lid
Prior art date
Application number
PCT/JP2022/006136
Other languages
English (en)
Japanese (ja)
Inventor
麻衣 末吉
裕人 石山
裕充 山下
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2023500890A priority Critical patent/JPWO2022176900A1/ja
Priority to CN202280009761.6A priority patent/CN116784003A/zh
Publication of WO2022176900A1 publication Critical patent/WO2022176900A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers

Definitions

  • the present disclosure relates to a power converter.
  • the lid that covers the opening provided in the housing of the power converter, in order to improve vibration resistance.
  • the lid there is also a demand for weight reduction in power converters for vehicles and the like.
  • aluminum lids are lighter than steel lids.
  • the Young's modulus of aluminum is low, there is a problem that the rigidity of the lid made of aluminum is low.
  • the outer cover (lid) has a top plate portion and a top plate portion in order to improve the rigidity of the lid. and a convex portion projecting from the plate portion.
  • the convex portion consists only of straight lines. Therefore, the section modulus of the lid (exterior cover) is not sufficiently large. Therefore, the rigidity of the lid is not sufficiently high.
  • the present disclosure has been made in view of the above problems, and an object thereof is to provide a power conversion device whose lid has sufficiently high rigidity.
  • a power conversion device of the present disclosure includes a substrate, a housing, and a lid.
  • the housing includes a bottom.
  • a substrate is placed on the bottom.
  • the lid is arranged on the opposite side of the substrate from the bottom of the housing.
  • the lid includes a top plate portion, a plurality of first rib portions, and a second rib portion.
  • the top plate portion covers the substrate.
  • the plurality of first rib portions protrude from the top plate portion along the direction in which the substrate and the top plate portion are stacked.
  • the second rib portion protrudes from the top plate portion along the direction in which the substrate and the top plate portion are overlapped.
  • the plurality of first rib portions are linear.
  • the plurality of first rib portions are connected to the second rib portion so as to face each other with the second rib portion interposed therebetween.
  • the second rib portion has an annular shape.
  • the second rib portion has an annular shape. Therefore, in a cross section passing through both the first rib portion and the second rib portion, the section modulus of the lid is larger than when the second rib portion is not provided. Therefore, the rigidity of the lid is sufficiently high.
  • FIG. 1 is an exploded perspective view schematically showing the configuration of a power converter according to Embodiment 1;
  • FIG. 1 is a perspective view schematically showing the configuration of a power converter according to Embodiment 1;
  • FIG. 1 is a top view schematically showing the configuration of a power converter according to Embodiment 1;
  • FIG. 2 is a top view schematically showing the configuration of the lid of the power converter according to Embodiment 1;
  • FIG. FIG. 5 is a cross-sectional view taken along line VV of FIG. 4;
  • FIG. 5 is a cross-sectional view taken along line VI-VI of FIG. 4;
  • FIG. 7 is an enlarged view of region VII of FIG. 6;
  • FIG. 5 is a cross-sectional view taken along line VV of FIG. 4;
  • FIG. 5 is a cross-sectional view taken along line VI-VI of FIG. 4;
  • FIG. 7 is an enlarged view of region VII of FIG. 6;
  • FIG. 3 is a perspective view schematically showing the configuration of a power conversion device according to a first modification of Embodiment 1;
  • FIG. 4 is a side view schematically showing the configuration of a power conversion device according to a first modification of the first embodiment;
  • FIG. 4 is a top view schematically showing the configuration of a power conversion device according to a second modification of the first embodiment;
  • FIG. 10 is a top view schematically showing the configuration of a power converter according to a third modification of the first embodiment;
  • FIG. 11 is a top view schematically showing the configuration of a power conversion device according to a fourth modification of the first embodiment;
  • FIG. 7 is a top view schematically showing the configuration of a power conversion device according to Embodiment 2;
  • FIG. 11 is a top view schematically showing the configuration of a power conversion device according to Embodiment 3;
  • FIG. 11 is a top view schematically showing the configuration of a power conversion device according to Embodiment 4;
  • Embodiment 1 The configuration of a power converter 100 according to Embodiment 1 will be described with reference to FIGS. 1 to 7.
  • FIG. 1 The configuration of a power converter 100 according to Embodiment 1 will be described with reference to FIGS. 1 to 7.
  • FIG. 1 The configuration of a power converter 100 according to Embodiment 1 will be described with reference to FIGS. 1 to 7.
  • FIG. 1 The configuration of a power converter 100 according to Embodiment 1 will be described with reference to FIGS. 1 to 7.
  • FIG. 1 The configuration of a power converter 100 according to Embodiment 1 will be described with reference to FIGS. 1 to 7.
  • the power conversion device 100 includes a substrate 1, a housing 3, and a lid 4.
  • the power conversion device 100 further includes an electronic component 2 , a plurality of fixing parts 5 and a plurality of fixtures 6 .
  • the board 1 is configured as a power conversion circuit.
  • the substrate 1 has a flat plate shape.
  • the substrate 1 includes a front surface 1a and a back surface 1b facing the front surface 1a.
  • the electronic component 2 is arranged only on the front surface 1a of the substrate 1, but may be arranged on the back surface 1b.
  • the electronic component 2 is connected to the substrate 1.
  • the electronic component 2 is, for example, a semiconductor element such as a metal oxide semiconductor field effect transistor (MOSFET: Metal Oxide Semiconductor Field Effect Transistor), a motor relay, a coil, a capacitor, or the like.
  • the electronic component 2 is a heating element.
  • the housing 3 includes a bottom portion 31 and a peripheral wall portion 32.
  • the substrate 1 is arranged on the bottom portion 31 .
  • the peripheral wall portion 32 rises from the bottom portion 31 .
  • the peripheral wall portion 32 surrounds the entire circumference of the substrate 1 .
  • Heat generated by the electronic component 2 is radiated outside the housing 3 through the bottom portion 31 and the peripheral wall portion 32 .
  • the material of the housing 3 is a metal with high heat dissipation such as an aluminum alloy.
  • the housing 3 may include a plurality of heat radiating fins as described later.
  • the housing 3 opens toward the lid 4 .
  • the lid 4 covers the opening of the housing 3.
  • the lid 4 is arranged on the side opposite to the bottom 31 of the housing 3 with respect to the substrate 1 .
  • the lid 4 is fixed to the peripheral wall portion 32 of the housing 3 by the fixing portion 5 .
  • the lid 4 is arranged with a space in the height direction from the electronic component 2 .
  • the height direction is along the direction DR1 in which the substrate 1 and the later-described top plate portion 40 of the lid 4 are overlapped.
  • the lid 4 includes a top plate portion 40 , a plurality of first rib portions 41 and a second rib portion 42 .
  • the top plate portion 40 covers the substrate 1 .
  • the electronic component 2 is spaced apart from the top plate portion 40 and the plurality of first rib portions 41 and second rib portions 42 . Therefore, the electronic component 2 is not in contact with the top plate portion 40 , the plurality of first rib portions 41 and the second rib portions 42 .
  • the plurality of first rib portions 41 protrude from the top plate portion 40 along the direction DR1 in which the substrate 1 and the top plate portion 40 are overlapped.
  • the second rib portion 42 protrudes from the top plate portion 40 along the direction DR1 in which the substrate 1 and the top plate portion 40 are overlapped.
  • each of the plurality of first rib portions 41 and second rib portions 42 protrudes from top plate portion 40 toward substrate 1 . That is, the plurality of first rib portions 41 and second rib portions 42 are configured as recesses of the lid 4 .
  • the plurality of first rib portions 41 are linear.
  • the plurality of first rib portions 41 are connected to the second rib portion 42 so as to face each other with the second rib portion 42 interposed therebetween.
  • Each of the plurality of first rib portions 41 has a linear shape when viewed from the top plate portion 40 toward the substrate 1 .
  • the plurality of first rib portions 41 are radially arranged.
  • the plurality of first rib portions 41 are radially connected to the second rib portion 42 with respect to the center of the second rib portion 42 .
  • the multiple first rib portions 41 include at least four first rib portions 41 .
  • the multiple first rib portions 41 include twelve first rib portions 41 .
  • the second rib portion 42 has an annular shape.
  • the second rib portion 42 has an annular shape when viewed from the top plate portion 40 toward the substrate 1 (see FIG. 1).
  • the second rib portion 42 is arranged in the center of the top plate portion 40 .
  • the center of the second rib portion 42 may be arranged at the center of the top plate portion 40 .
  • the shape of the second rib portion 42 is circular in the present embodiment, the shape of the second rib portion 42 is not limited to a circular shape as will be described later.
  • the top plate section 40 has a first section 401 and a second section 402 .
  • the first portion 401 is provided with a plurality of first rib portions 41 and second rib portions 42 . Regions of the first portion 401 that face the center of the second rib portion 42 and are sandwiched between adjacent first rib portions 41 have a point-symmetrical shape with respect to the center of the second rib portion 42 . You may have The fixing portion 5 is fixed to the second portion 402 .
  • the second part 402 surrounds the entire circumference of the first part 401 .
  • the first portion 401 of the top plate portion 40 protrudes from the second portion 402 toward the side opposite to the substrate 1 (see FIG. 1).
  • the height position of the region surrounded by the second rib portion 42 in the first portion 401 is the same as the height position of the region outside the second rib portion 42 in the first portion 401. is.
  • each of the region surrounded by the second rib portion 42 and the region outside the second rib portion 42 of the first portion 401 contacts the surface of the external device to which the lid 4 of the power conversion device 100 is attached. . Therefore, the external device can be stably installed on the lid 4 of the power converter 100 .
  • the height position of the region of the first portion 401 surrounded by the second rib portion 42 may be higher than the height position of the region of the first portion 401 outside the second rib portion 42 . good.
  • the tall electronic component 2 (see FIG. 1) can be arranged below the area surrounded by the second rib portion 42 in the first portion 401 . Therefore, the degree of freedom in arranging the electronic component 2 (see FIG. 1) is improved.
  • the height position of the region of the first portion 401 surrounded by the second rib portion 42 may be lower than the height position of the region of the first portion 401 outside the second rib portion 42 . good. In this case, even if a projection is provided on the mounting surface of the external device, since the projection can be accommodated in the area surrounded by the second rib portion 42, the external device installed in the power conversion device 100 stabilizes.
  • some of the plurality of first rib portions 41 and second rib portions 42 protrude toward the side opposite to the substrate 1 (see FIG. 1), and other portions protrude toward the substrate 1 (see FIG. 1). may protrude toward the
  • the projecting directions of the plurality of first rib portions 41 and the second rib portions 42 may be determined, for example, according to the arrangement of the electronic component 2 (see FIG. 1).
  • the ends of the second rib portion 42 may be rounded. As a result, concentration of stress on the end portion of the second rib portion 42 can be suppressed, and the strength of the lid 4 is improved. Although not shown, the ends of the plurality of first rib portions 41 may be rounded.
  • the thickness of the plurality of first rib portions 41 and the second rib portions 42 may be the same as the thickness of the top plate portion 40 .
  • the plurality of first rib portions 41 and second rib portions 42 may be thinner than the top plate portion 40 . In this case, the weight of lid 4 can be reduced.
  • the material of the lid 4 is desirably a lightweight metal such as aluminum (Al) and aluminum (Al) alloy.
  • the plurality of fixing parts 5 fix the housing 3 and the lid 4 together.
  • a plurality of fixing portions 5 fix the housing 3 and the lid 4 at the second portion 402 .
  • the multiple fixing portions 5 include, for example, multiple first screws 51 .
  • the multiple first screws 51 are configured as male screws.
  • the peripheral wall portion 32 of the housing 3 is provided with a plurality of female screws.
  • Each of the multiple first screws 51 penetrates the lid 4 .
  • Each of the plurality of first screws 51 is screwed into each of the plurality of female threads provided on the peripheral wall portion 32 while the lid 4 is sandwiched between the peripheral wall portion 32 and the lid 4 .
  • each of the plurality of fixing portions 5 is arranged deviated from the extension line of the plurality of first rib portions 41 .
  • the plurality of fixing portions 5 are arranged so as to surround the plurality of first rib portions 41 and the plurality of second rib portions 42 .
  • a plurality of fixtures 6 fix the substrate 1 and the housing 3 together.
  • the multiple fixtures 6 include, for example, multiple second screws 61 and multiple supports 62 .
  • Each of the multiple second screws 61 is configured as a male screw.
  • Each of the multiple second screws 61 penetrates the substrate 1 .
  • Each of the plurality of second screws 61 is screwed into each of female threads (not shown) provided on the plurality of columns 62 while the substrate 1 is sandwiched between the columns 62 .
  • the shape of each of the plurality of struts 62 is, for example, a column or a hexagonal column.
  • Each of the multiple pillars 62 is arranged between the substrate 1 and the bottom 31 of the housing 3 . Therefore, the substrate 1 (see FIG. 1) is fixed to the bottom portion 31 of the housing 3 by the plurality of second screws 61 and the plurality of posts 62 .
  • FIG. 8 the configuration of the power converter 100 according to the first modification of the first embodiment will be described using FIGS. 8 and 9.
  • each of a plurality of first rib portions 41 and second rib portions 42 includes substrate 1 (see FIG. 1). It protrudes from the top plate part 40 toward the opposite side. That is, each of the plurality of first rib portions 41 and second rib portions 42 is configured as a convex portion of the lid 4 .
  • the housing 3 includes a plurality of heat radiation fins 33 .
  • Each of the plurality of heat radiation fins 33 is attached to the bottom portion 31 .
  • Each of the plurality of radiation fins 33 protrudes from the peripheral wall portion 32 on the side opposite to the substrate 1 (see FIG. 1).
  • the housing 3 does not have to include the plurality of heat radiating fins 33 if heat dissipation from the housing 3 is not required. Further, if heat radiation from the housing 3 is not required, the material of the housing 3 may not be a metal having high heat dissipation.
  • lid 4 further includes curved portion 45 .
  • Curved portion 45 protrudes from top plate portion 40 along direction DR1 in which substrate 1 (see FIG. 1) and top plate portion 40 are overlapped.
  • the curved portion 45 is connected to the first rib portion 41 .
  • the curved portion 45 is curved with respect to the first rib portion 41 .
  • the curved portion 45 has a curved shape when viewed from the top plate portion 40 toward the substrate 1 (see FIG. 1).
  • the curved portion 45 is surrounded by a dashed line.
  • the lid 4 further includes a polygonal line portion 46 .
  • Folded line portion 46 protrudes from top plate portion 40 along direction DR1 in which substrate 1 (see FIG. 1) and top plate portion 40 are overlapped.
  • the bent line portion 46 is bent with respect to the first rib portion 41 and connected to the first rib portion 41 .
  • the bent line portion 46 has a linear shape.
  • the polygonal line portion 46 is surrounded by a dashed line.
  • the shape of second rib portion 42 is the direction from top plate portion 40 toward substrate 1 (see FIG. 1). It is rectangular when viewed from 12, the shape of the second rib portion 42 is rectangular when viewed from the top plate portion 40 toward the substrate 1 (see FIG. 1), but the shape of the second rib portion 42 may be square or polygonal. good.
  • the center of the second rib portion 42 may be the same as the center of the top plate portion 40 . Further, all of the plurality of first rib portions 41 may be arranged on the same plane of the top plate portion 40 .
  • the plurality of first rib portions 41 may be arranged so as not to reach the edge of the top plate portion 40 . That is, the plurality of first rib portions 41 may be spaced apart from the edge of the top plate portion 40 .
  • second rib portion 42 has an annular shape. Therefore, in a cross section passing through both the first rib portion 41 and the second rib portion 42, the section modulus of the lid 4 is larger than when the second rib portion 42 is not provided. Therefore, the rigidity of the lid 4 is sufficiently high. Therefore, deformation of the lid 4 can be suppressed.
  • the rigidity of the lid 4 is sufficiently high, a lightweight material can be used as the material for the lid 4.
  • a lightweight material can be used as the material for the lid 4.
  • aluminum (Al) and an aluminum (Al) alloy can be used as the material of the lid 4 . Therefore, it is possible to achieve both improvement in rigidity and reduction in weight of the lid 4 .
  • the lid 4 that achieves both improved rigidity and reduced weight is particularly effective in applications requiring weight reduction, such as the on-vehicle power conversion device 100 .
  • each of the plurality of first rib portions 41 and second rib portions 42 protrudes from the top plate portion 40 toward the substrate 1 . Therefore, it is possible to prevent the lid 4 from protruding toward the outside of the housing 3 . Therefore, it is possible to prevent the plurality of first rib portions 41 and the second rib portions 42 from interfering with the external device to which the power conversion device 100 is attached. Therefore, external devices can be stably arranged on the lid 4 .
  • each of the plurality of first rib portions 41 and second rib portions 42 protrudes from the top plate portion 40 toward the substrate 1 . Therefore, it is possible to prevent the lid 4 from protruding toward the outside of the housing 3 . Therefore, the height dimension of the power conversion device 100 can be reduced.
  • each of the plurality of fixing portions 5 is arranged deviated from the extension line of the plurality of first rib portions 41 .
  • the rigidity of the lid 4 at a position shifted from the extension line of the plurality of first rib portions 41 is lower than the rigidity of the lid 4 at the extension line of the plurality of first rib portions 41 . Therefore, the rigidity of the lid 4 can be effectively improved by fixing the lid 4 to the housing 3 with the plurality of fixing portions 5 at positions deviated from the extension lines of the plurality of first rib portions 41 .
  • the first portion 401 of the top plate portion 40 protrudes from the second portion 402 in the direction opposite to the substrate 1 (see FIG. 1). Therefore, the height position of the first portion 401 is different from the height position of the second portion 402 . Therefore, the section modulus of the top plate portion 40 is larger than when the height position of the first portion 401 and the height position of the second portion 402 are the same. Therefore, the rigidity of the top plate portion 40 is sufficiently high.
  • the first portion 401 of the top plate portion 40 protrudes from the second portion 402 toward the side opposite to the substrate 1 (see FIG. 1). Therefore, the first portion 401 protrudes outward from the housing 3 . Therefore, the volume of the space inside the housing 3 is larger than when the height position of the first portion 401 and the height position of the second portion 402 are the same. Therefore, the degree of freedom in arranging the electronic components 2 in the housing 3 is improved.
  • the electronic component 2 is spaced apart from the multiple first rib portions 41 and the second rib portions 42 . Therefore, the electronic component 2 does not come into contact with the multiple first rib portions 41 and the second rib portions 42 . Therefore, the insulation distance between the electronic component 2 and the plurality of first rib portions 41 and second rib portions 42 can be ensured. Therefore, it is possible to electrically insulate the electronic component 2 from the plurality of first rib portions 41 and the second rib portions 42 .
  • the plurality of first rib portions 41 are radially arranged. Therefore, the section modulus of the lid 4 is larger than when the plurality of first rib portions 41 are linearly arranged. Therefore, the rigidity of the lid 4 is sufficiently high.
  • the shape of the second rib portion 42 is circular.
  • the area of the circular second rib portion 42 is smaller than the area of the rectangular second rib portion 42 . Therefore, the length of the second rib portion 42 can be increased while the area inside the second rib portion 42 is kept small.
  • the area in which the plurality of first rib portions 41 can be arranged is increased. Therefore, the plurality of first rib portions 41 and second rib portions 42 can be lengthened. Thereby, the section modulus of the lid 4 is large. Therefore, the rigidity of the lid 4 is sufficiently high.
  • the stress applied to the second rib portion 42 when twisting is applied to the lid 4 is suppressed from concentrating at some locations. distributed because Therefore, the effect of increasing the rigidity of the lid 4 is obtained.
  • the second rib portion 42 is circular, the first rib portions 41 radially extending from the second rib portion 42 can be arranged at equal angles. Therefore, the effect of suppressing the concentration of stress between adjacent first rib portions 41 can be obtained. Further, molding of the second rib portion 42 is easy.
  • the top plate portion 40 is not provided with holes such as ventilation holes, so that the effect of suppressing stress concentration when force is applied to the lid 4 can be obtained.
  • the lid 4 since there is no need to provide a component for preventing dust and moisture from entering, the lid 4 can be prevented from being degraded in earthquake resistance.
  • the center of the second rib portion 42 is the same as the center of the top plate portion 40 .
  • the center of the second rib portion 42 is arranged to coincide with the center of the first portion 401 of the top plate portion 40 .
  • the section modulus of the lid 4 can be increased, the effect of increasing the rigidity can be obtained.
  • the length of each rib of the first rib portion 41 is the longest, sheet metal working is easy.
  • warpage during molding can be suppressed even when working using a mold. Therefore, an effect of facilitating processing can be obtained.
  • the plurality of first rib portions 41 are all arranged on the same plane of the top plate portion 40 . Specifically, all of the plurality of first rib portions 41 are arranged on the first portion 401 of the top plate portion 40 .
  • the plurality of first rib portions 41 are arranged apart from the edge of the top plate portion 40 . Specifically, all of the plurality of first rib portions 41 are arranged so as not to reach the edge side of the first portion 401 . Therefore, it is possible to obtain the effect of facilitating molding with sheet metal. Moreover, when the first rib portion 41 is arranged on the first portion 401 , the height between the second portion 402 and the first portion 401 is increased, so that the tall electronic component 2 is mounted on the substrate 1 . can be placed. As a result, it is possible to obtain the effect of improving the degree of freedom in arranging the electronic component 2 .
  • each of the plurality of first rib portions 41 and the second rib portions 42 is formed on the substrate 1 (FIG. 1 ) protrudes from the top plate portion 40 toward the opposite side. Therefore, it is possible to increase the distance between the plurality of first rib portions 41 and second rib portions 42 and the substrate 1 (see FIG. 1). Therefore, it is possible to prevent the arrangement and height of electronic component 2 (see FIG. 1) from being restricted by the plurality of first rib portions 41 and second rib portions 42 . Therefore, the degree of freedom in arranging the electronic component 2 (see FIG. 1) is improved.
  • lid 4 further includes curved portion 45 as shown in FIG.
  • the curved portion 45 is curved with respect to the first rib portion 41 . Therefore, the interval between the first rib portions 41 adjacent to the curved portion 45 and the curved portion 45 is larger than the interval when the first rib portions 41 are adjacent to each other. Therefore, compared with the case where the lid 4 includes only the plurality of first rib portions 41 and the second rib portions 42, the degree of freedom in arranging the tall electronic components 2 (see FIG. 1) in the housing 3 is improved. do.
  • the length of the portion (rib) protruding from the top plate portion 40 is longer due to the curved portion 45 than when the lid 4 includes only the plurality of first rib portions 41 and the second rib portions 42, The rigidity of the lid 4 is further increased.
  • the lid 4 further includes a fold line portion 46, as shown in FIG.
  • the bent line portion 46 is connected to the first rib portion 41 . Since the interval between the fold line portion 46 and the first rib portion 41 adjacent to the first rib portion 41 to which the fold line portion 46 is connected can be reduced, the rigidity of the lid 4 is improved. In addition, since the length of the portion (rib) protruding from the top plate portion 40 is longer due to the fold line portion 46 than when the lid 4 includes only the plurality of first rib portions 41 and the second rib portions 42, The rigidity of the lid 4 is further increased.
  • the shape of the second rib portion 42 is rectangular when viewed from the top plate portion 40 toward the substrate 1 (see FIG. 1). is.
  • the shape of the second rib portion 42 is a rectangle
  • the second rib portion 42 is a circle or an ellipse having the same diameter as the long dimension or width dimension of the rectangle and inscribed in the rectangle.
  • the area surrounded by the second rib portion 42 is large. Therefore, it is easy to arrange a tall electronic component 2 (see FIG. 1) below the area surrounded by the second rib portions 42 . That is, the degree of freedom of arrangement of the electronic component 2 (see FIG. 1) is improved.
  • Embodiment 2 Next, the configuration of the power conversion device 100 according to Embodiment 2 will be described with reference to FIG. 13 .
  • the second embodiment has the same configuration and effects as those of the first embodiment unless otherwise specified. Therefore, the same reference numerals are given to the same configurations as in the above-described first embodiment, and description thereof will not be repeated.
  • adjacent first rib portions 41 among the plurality of first rib portions 41 of power converter 100 according to the present embodiment are equiangular with respect to the center of second rib portion 42 . are placed in Therefore, the angle ⁇ formed by adjacent first rib portions 41 among the plurality of first rib portions 41 is equal to the angle ⁇ formed by other adjacent first rib portions 41 .
  • the plurality of first rib portions 41 are arranged point-symmetrically with respect to the center of the second rib portion 42 .
  • the effects of this embodiment will be described.
  • the shape of the top plate portion 40 (the area of the lid 4 where the first rib portion 41 is not provided) is point-symmetrical with respect to the center of the second rib portion 42 . Therefore, concentration of stress on the lid 4 is suppressed more than when the shape of the lid 4 is asymmetrical. Therefore, the rigidity of the lid 4 is sufficiently high.
  • Embodiment 3 Next, the configuration of the power conversion device 100 according to Embodiment 3 will be described with reference to FIG. 14 .
  • Embodiment 3 has the same configuration and effects as those of Embodiment 1 described above unless otherwise specified. Therefore, the same reference numerals are given to the same configurations as in the above-described first embodiment, and description thereof will not be repeated.
  • an angle ⁇ 1 formed by adjacent first rib portions 41 among the plurality of first rib portions 41 of power conversion device 100 is equal to the angle ⁇ 1 between other adjacent first rib portions 41 .
  • the angles ⁇ 2 and ⁇ 3 formed by the rib portions 41 are different from each other. That is, the shape of the top plate portion 40 is asymmetrical.
  • the angle ⁇ 1 formed by adjacent first rib portions 41 among the plurality of first rib portions 41 is It is different from the angle ⁇ 2 formed by the matching first rib portions 41 . Therefore, the first rib portion 41 can be arranged according to the position of the electronic component 2 (see FIG. 1) arranged inside the housing 3 . Therefore, the degree of freedom in arranging the electronic component 2 (see FIG. 1) is improved.
  • Embodiment 4 Next, the configuration of the power conversion device 100 according to Embodiment 4 will be described with reference to FIG. 15 .
  • the fourth embodiment has the same configuration and effects as those of the first embodiment unless otherwise specified. Therefore, the same reference numerals are given to the same configurations as in the above-described first embodiment, and description thereof will not be repeated.
  • the lid 4 of the power converter 100 further includes a third rib portion 43.
  • the third rib portion 43 protrudes from the top plate portion 40 along the direction DR1 in which the substrate 1 (see FIG. 1) and the top plate portion 40 are overlapped.
  • the third rib portion 43 protrudes from the top plate portion 40 toward the side opposite to the substrate 1 (see FIG. 1).
  • the electronic component 2 (see FIG. 1) is spaced apart from the third rib portion 43 .
  • the third rib portion 43 has an annular shape.
  • the third rib portion 43 has an annular shape when viewed from the top plate portion 40 toward the substrate 1 (see FIG. 1).
  • the shape of the third rib portion 43 is, for example, circular and rectangular. In FIG. 15, the shape of the third rib portion 43 is rectangular.
  • a plurality of first rib portions 41 may be connected to the third rib portion 43 .
  • the third rib portion 43 is arranged outside the second rib portion 42 .
  • the plurality of first rib portions 41, second rib portions 42 and third rib portions 43 are connected to each other.
  • the first rib portion 41 is not arranged inside the third rib portion 43 .
  • lid 4 further includes third rib portion 43 as shown in FIG. 15 .
  • the third rib portion 43 is arranged outside the second rib portion 42 .
  • the third rib portion 43 protrudes from the top plate portion 40 along the direction DR1 in which the substrate 1 (see FIG. 1) and the top plate portion 40 are overlapped.
  • the first rib portion 41 is not arranged inside the third rib portion 43 . Therefore, a tall electronic component 2 (see FIG. 1) can be arranged below the inner side of the third rib portion 43 . If the third rib portion 43 is not provided and if the third rib portion 43 is arranged inside the second rib portion 42, the area where the tall electronic component 2 (see FIG.
  • the third rib portion 43 is arranged outside the second rib portion 42, so that the tall electronic component 2 (see FIG. 1) is placed inside the third rib portion 43. It can also be placed below. Therefore, the degree of freedom in arranging the electronic component 2 (see FIG. 1) is improved.
  • the plurality of first rib portions 41, second rib portions 42 and third rib portions 43 are connected to each other. Therefore, it is possible to reduce the area of the lid 4 where the plurality of first rib portions 41, second rib portions 42 and third rib portions 43 are not provided. Therefore, the section modulus of the lid 4 can be increased by the plurality of first rib portions 41 , second rib portions 42 and third rib portions 43 . Therefore, the rigidity of the lid 4 is improved by the first rib portion 41 , the second rib portion 42 and the third rib portion 43 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

Ce dispositif de conversion de puissance comprend un substrat (1), un boîtier (3) et un couvercle (4). Le couvercle (4) est disposé sur le côté du substrat (1) qui est opposé à une section inférieure (31) du boîtier (3). Le couvercle (4) comprend une section de plaque supérieure (40), une pluralité de premières sections de nervure (41) et une seconde section de nervure (42). La section de plaque supérieure (40) recouvre le substrat (1). La pluralité de premières sections de nervure (41) font saillie depuis la section de plaque supérieure (40) le long d'une direction (DR1) dans laquelle le substrat (1) et la section de plaque supérieure (40) se chevauchent. La seconde section de nervure (42) fait saillie depuis la section de plaque supérieure (40) le long de la direction (DR1) dans laquelle le substrat (1) et la section de plaque supérieure (40) se chevauchent. La pluralité de premières sections de nervure (41) sont linéaires. La pluralité de premières sections de nervure (41) sont reliées à la seconde section de nervure (42) de façon à se faire face l'une à l'autre avec la seconde section de nervure (42) prise en sandwich entre elles. La seconde section de nervure (42) présente une forme annulaire.
PCT/JP2022/006136 2021-02-19 2022-02-16 Dispositif de conversion de puissance WO2022176900A1 (fr)

Priority Applications (2)

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JP2023500890A JPWO2022176900A1 (fr) 2021-02-19 2022-02-16
CN202280009761.6A CN116784003A (zh) 2021-02-19 2022-02-16 电力转换装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-025217 2021-02-19
JP2021025217 2021-02-19

Publications (1)

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WO2022176900A1 true WO2022176900A1 (fr) 2022-08-25

Family

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PCT/JP2022/006136 WO2022176900A1 (fr) 2021-02-19 2022-02-16 Dispositif de conversion de puissance

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Country Link
JP (1) JPWO2022176900A1 (fr)
CN (1) CN116784003A (fr)
WO (1) WO2022176900A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0933844A (ja) * 1995-07-17 1997-02-07 Fuji Xerox Co Ltd 光走査装置
JP2007315269A (ja) * 2006-05-25 2007-12-06 Mitsubishi Heavy Ind Ltd インバータ一体型電動圧縮機
WO2016006361A1 (fr) * 2014-07-10 2016-01-14 日産自動車株式会社 Structure d'accueil de composants électroniques
JP2017515041A (ja) * 2015-04-17 2017-06-08 ハノン システムズ 電動圧縮機
JP2020115699A (ja) * 2019-01-17 2020-07-30 株式会社豊田自動織機 電力変換装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0933844A (ja) * 1995-07-17 1997-02-07 Fuji Xerox Co Ltd 光走査装置
JP2007315269A (ja) * 2006-05-25 2007-12-06 Mitsubishi Heavy Ind Ltd インバータ一体型電動圧縮機
WO2016006361A1 (fr) * 2014-07-10 2016-01-14 日産自動車株式会社 Structure d'accueil de composants électroniques
JP2017515041A (ja) * 2015-04-17 2017-06-08 ハノン システムズ 電動圧縮機
JP2020115699A (ja) * 2019-01-17 2020-07-30 株式会社豊田自動織機 電力変換装置

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JPWO2022176900A1 (fr) 2022-08-25
CN116784003A (zh) 2023-09-19

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