WO2022190325A1 - 冷却装置および車載機器 - Google Patents

冷却装置および車載機器 Download PDF

Info

Publication number
WO2022190325A1
WO2022190325A1 PCT/JP2021/009878 JP2021009878W WO2022190325A1 WO 2022190325 A1 WO2022190325 A1 WO 2022190325A1 JP 2021009878 W JP2021009878 W JP 2021009878W WO 2022190325 A1 WO2022190325 A1 WO 2022190325A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow path
housing
heat
cooling device
receiving block
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/009878
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宏和 高林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to US18/263,969 priority Critical patent/US12588170B2/en
Priority to DE112021007253.6T priority patent/DE112021007253T5/de
Priority to JP2023505017A priority patent/JP7418657B2/ja
Priority to PCT/JP2021/009878 priority patent/WO2022190325A1/ja
Publication of WO2022190325A1 publication Critical patent/WO2022190325A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20863—Forced ventilation, e.g. on heat dissipaters coupled to components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20854—Heat transfer by conduction from internal heat source to heat radiating structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029—Heat sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles

Definitions

  • the present disclosure relates to a cooling device and an in-vehicle device including the cooling device.
  • Some in-vehicle devices are equipped with a cooling device that is thermally connected to the electronic parts in order to prevent damage due to heat generated when the electronic parts are energized.
  • the cooling device radiates heat transferred from the electronic component to the air around the cooling device. As a result, the electronic component is cooled.
  • a cooling device there is a cooling device that cools electronic components by dissipating heat transferred from the electronic components to the cooling air taken into the duct of the vehicle-mounted equipment by the blower.
  • An example of an in-vehicle device equipped with this type of cooling device is disclosed in Patent Document 1.
  • the underfloor equipment disclosed in Patent Document 1 includes a duct for passing cooling air, an air blower for blowing cooling air to the duct, and a cooling device having a heat radiating part arranged in the duct.
  • the underfloor equipment disclosed in Patent Document 1 includes a duct for flowing cooling air taken in from the outside inside a sealed room in which the inflow of outside air is suppressed.
  • the underfloor equipment includes a cooling device that has a heat radiating portion arranged in the duct and radiates heat transferred from the electronic components accommodated in the sealed chamber to cooling air. For this reason, it is necessary to provide a duct in the underfloor equipment and arrange a heat radiating part, which is a part of the cooling device, inside the duct, resulting in a complicated structure. This problem is not limited to underfloor equipment, and may occur in equipment provided with a cooling device.
  • the present disclosure has been made in view of the circumstances described above, and aims to provide a cooling device capable of simplifying the structure of the in-vehicle equipment and an in-vehicle equipment with a simple structure.
  • the cooling device of the present disclosure includes a heat receiving block, a heat radiating member, and a flow path forming portion.
  • a heating element is attached to the first main surface of the heat receiving block.
  • the plurality of heat dissipating members are fixed to a second main surface opposite to the first main surface of the heat receiving block with a gap therebetween, and transfer heat transferred from the heating element through the heat receiving block to the air passing through the gap. dissipate heat.
  • the flow path forming part is fixed to the second main surface of the heat receiving block while covering the plurality of heat radiating members, and forms air flow paths passing through the gaps between the plurality of heat radiating members.
  • the flow path forming portion is formed with a plurality of ventilation holes for allowing air to flow into the flow path and for the air flowing into the flow path to flow out.
  • the cooling device since the cooling device forms a flow path passing through the gaps between the plurality of heat radiating members, there is no need to provide a duct in the vehicle-mounted device equipped with the cooling device. Therefore, it is possible to simplify the structure of the vehicle-mounted device.
  • Sectional view of in-vehicle equipment according to Embodiment 1 Cross-sectional view taken along line II-II in FIG. 1 of the in-vehicle device according to Embodiment 1 1 is a perspective view of a cooling device according to Embodiment 1 1 is a perspective view of a cooling device according to Embodiment 1 1 is an exploded perspective view of a cooling device according to Embodiment 1 Sectional view of in-vehicle equipment according to Embodiment 2 Cross-sectional view taken along line VII-VII in FIG. 6 of the in-vehicle device according to Embodiment 2 Sectional view of the first modification of the in-vehicle device according to the embodiment Sectional drawing of the 2nd modification of the vehicle equipment which concerns on embodiment
  • an on-vehicle device 1 will be described by taking an on-vehicle device mounted on a railway vehicle as an example.
  • the Z-axis indicates the vertical direction.
  • the Y-axis indicates the traveling direction of the railcar, and the X-axis indicates the width direction of the railcar.
  • the X-, Y-, and Z-axes are orthogonal to each other.
  • the in-vehicle device 1 is, for example, a power conversion device that converts power supplied from an overhead wire into three-phase AC power to be supplied to an electric motor that generates propulsion force of a railway vehicle, and supplies the three-phase AC power to the traction motor. is.
  • the in-vehicle device 1, which is a power conversion device has, for example, a switching element as an electronic component 21, which is a heating element.
  • the housing 20 is attached to the underfloor of the railway vehicle by an attachment member (not shown).
  • First openings 20a and 20b are formed on two surfaces of the housing 20 that face each other in the Z-axis direction. Specifically, a first opening 20a is formed on the bottom surface of the housing 20 in the vertical direction. A first opening 20b is formed in the upper surface of the housing 20 in the vertical direction.
  • the electronic component 21 is housed inside the housing 20 .
  • the cooling device 10 includes a heat receiving block 11 having a first main surface 11a to which a heat generator including an electronic component 21 is attached, and a second main surface 11b of the heat receiving block 11 with a gap therebetween. a plurality of heat radiating members 12 that are fixed by pressing the heat radiating members 12;
  • FIG. 3 is a view of the cooling device 10 housed in the housing 20 as viewed from below in the vertical direction.
  • FIG. 4 is a view of the cooling device 10 housed in the housing 20 as seen from above in the vertical direction.
  • the heat receiving block 11 has a first main surface 11a and a second main surface 11b opposite to the first main surface 11a.
  • the heat receiving block 11 is preferably a flat plate-like member. In Embodiment 1, the first main surface 11a and the second main surface 11b face each other in the Y-axis direction.
  • the heat receiving block 11 is made of a material with high thermal conductivity, such as metal such as copper or aluminum.
  • a plurality of heat dissipating members 12 are fixed to the second main surface 11b of the heat receiving block 11 with a gap therebetween.
  • Each heat radiating member 12 radiates heat transferred from the electronic component 21 through the heat receiving block 11 to the air passing through the gap.
  • each heat dissipation member 12 has a fin shape. More specifically, each heat dissipating member 12 has a main surface in the shape of a fin along the YZ plane, and is fixed to the second main surface 11b at intervals in the X-axis direction.
  • Each heat radiating member 12 is made of a material with high thermal conductivity, for example, a metal such as copper or aluminum.
  • Each heat dissipating member 12 is fixed to the second main surface 11b of the heat receiving block 11 by any mounting method such as fitting, brazing, welding, adhesion using an adhesive, or fastening using a fastening member.
  • each heat radiating member 12 may be fixed to the heat receiving block 11 with such a strength that the positional relationship between each heat radiating member 12 and the heat receiving block 11 does not change due to vibration during running of the railway vehicle. .
  • the flow path forming part 13 is fixed to the second main surface 11 b of the heat receiving block 11 while covering the plurality of heat radiating members 12 , and forms air flow paths 14 passing through the gaps between the plurality of heat radiating members 12 .
  • the channel forming portion 13 forms a channel 14 extending in the Z-axis direction.
  • the flow path forming portion 13 is formed with a plurality of ventilation holes, specifically, a ventilation hole 13 a through which the air flows into the flow path 14 and a ventilation hole 13 b through which the air that has flowed into the flow path 14 flows out.
  • the ventilation holes 13a and 13b are formed at positions facing each other in the Z-axis direction.
  • the ventilation port 13a is located vertically below the ventilation port 13b.
  • the cooling device 10 having the above configuration is attached to the housing 20 so that the ventilation openings 13a and 13b of the flow path forming portion 13 face the first openings 20a and 20b of the housing 20, respectively. be done.
  • the first opening 20a is smaller than the ventilation port 13a, and the edge of the first opening 20a is located inside the edge of the ventilation port 13a in the XY plane.
  • the second opening 20b is smaller than the ventilation hole 13b, and the edge of the first opening 20b is located inside the edge of the ventilation hole 13b in the XY plane.
  • the first opening 20a is connected to the ventilation port 13a
  • the first opening 20b is connected to the ventilation port 13b.
  • the channel 14 formed by the channel forming portion 13 communicates with the outside of the housing 20 through the first openings 20a and 20b. Since the flow path 14 extends vertically, a vertically upward air flow is generated from the first opening 20a through the flow path 14 toward the first opening 20b without using an air blower. As a result, it becomes possible to cool the electronic component 21 in a natural air cooling system.
  • the flow path forming portion 13 has a pair of side wall members 15 and a lid member 16 .
  • the pair of side wall members 15 has a plate-like shape, and the main surfaces 15a face the heat receiving block 11 with the plurality of heat radiating members 12 interposed therebetween.
  • each side wall member 15 is fixed to the heat-receiving block 11 with one side 15b of the two longitudinal sides in contact with the second main surface 11b.
  • Each side wall member 15 may be fixed to the heat receiving block 11 with such a strength that the positional relationship between each side wall member 15 and the heat receiving block 11 does not change due to vibration during running of the railway vehicle.
  • Each side wall member 15 has strength to the extent that it does not deform due to vibration during running of the railway vehicle.
  • each sidewall member 15 is formed from an aluminum plate having a thickness of at least ten millimeters.
  • the lid member 16 has a plate-like shape and is fixed to the pair of side wall members 15 so as to face the second main surface 11b of the heat receiving block 11 with the plurality of heat radiating members 12 interposed therebetween. Specifically, the lid member 16 is fixed to each side wall member 15 with the main surface 16a in contact with the other side surface 15c of the two side surfaces along the longitudinal direction of each side wall member 15 . In other words, the cover member 16 is fixed to the pair of side wall members 15 with the plurality of heat radiating members 12 and the pair of side wall members 15 sandwiched between the lid member 16 and the second main surface 11b. In each side wall member 15, side 15c is located opposite side 15b.
  • the lid member 16 may be fixed to each side wall member 15 with such a strength that the positional relationship between the lid member 16 and each side wall member 15 does not change due to vibration during running of the railway vehicle.
  • the lid member 16 has strength to the extent that it does not deform due to vibrations during running of the railway vehicle.
  • lid member 16 is formed of an aluminum plate having a thickness of at least 10 millimeters.
  • the end portion 151 is a portion including one end of the side wall member 15 in the Z-axis direction.
  • a surface included in the end portion 151 and intersecting with the Z-axis direction is defined as an end surface 15d.
  • the end portion 161 is a portion including one end of the lid member 16 in the Z-axis direction.
  • a surface included in the end portion 161 and intersecting with the Z-axis direction is defined as an end surface 16b.
  • the end portion 111 is a portion including one end of the heat receiving block 11 in the Z-axis direction.
  • a surface included in the end portion 111 and intersecting with the Z-axis direction is defined as an end surface 11c.
  • a space surrounded by the end 152 of each side wall member 15, the end 162 of the lid member 16, and the end 112 of the heat receiving block 11 forms the ventilation port 13b.
  • the end portion 152 is a portion including the other end of the side wall member 15 in the Z-axis direction.
  • a surface included in the end portion 152 and intersecting with the Z-axis direction is defined as an end surface 15e.
  • the end portion 162 is a portion including the other end of the lid member 16 in the Z-axis direction.
  • the end portion 112, which is included in the end portion 162 and has the end face 16c that intersects with the Z-axis direction, is a portion that includes the other end of the heat receiving block 11 in the Z-axis direction.
  • a surface included in the end portion 112 and intersecting with the Z-axis direction is defined as an end surface 11d.
  • the flow path 14 is formed from the ventilation port 13a to the ventilation port 13b through the gap between the heat radiating members 12.
  • the ventilation ports 13a and 13b are attached to the housing 20 so as to face the first openings 20a and 20b of the housing 20, respectively. Air outside the housing 20 passes through the flow path 14 and is discharged to the outside of the housing 20 from the first opening 20b. The heat generated by the electronic component 21 is radiated to the air passing through the flow path 14 via the heat receiving block 11 and the heat radiating member 12 , thereby cooling the electronic component 21 .
  • FIG. 1 the ventilation ports 13a and 13b are attached to the housing 20 so as to face the first openings 20a and 20b of the housing 20, respectively. Air outside the housing 20 passes through the flow path 14 and is discharged to the outside of the housing 20 from the first opening 20b. The heat generated by the electronic component 21 is radiated to the air passing through the flow path 14 via the heat receiving block 11 and the heat radiating member 12 , thereby cooling the electronic component 21 .
  • the flow path 14 and the internal space of the housing 20 in which the electronic component 21 is accommodated are separated by the heat receiving block 11, the pair of side wall members 15, and the lid member 16. Inflow of air from the path 14 into the housing 20 in which the electronic component 21 is accommodated is suppressed.
  • the in-vehicle device 1 is required to have airtightness to the extent that air outside the housing 20 can be prevented from flowing into the internal space of the housing 20 in which the electronic components 21 are accommodated.
  • each part of the cooling device 10 that contacts the housing 20 preferably has a smooth flat surface.
  • the end surfaces 11c and 11d of the heat receiving block 11 are preferably smooth planes. It is preferable that the end faces 16b and 16c of the lid member 16 are smooth planes and abut on the housing 20 with their surfaces.
  • the end surface 15d of each side wall member 15 and the end surface 11c of the heat receiving block 11 forming the ventilation holes 13a are smoothly connected to each other. Being smoothly connected means that the inclination of the tangent plane is continuous.
  • end face 15d and end face 11c are positioned on the same plane.
  • the end surface 15d of each side wall member 15 and the end surface 16b of the lid member 16 that form the ventilation holes 13a are smoothly connected to each other.
  • end face 15d and end face 16b are coplanar, in other words, end face 15d, end face 11c, and end face 16b are coplanar.
  • end face 15e of each side wall member 15 and the end face 11d of the heat receiving block 11 forming the ventilation port 13b are smoothly connected to each other.
  • end face 15e and end face 11d are positioned on the same plane.
  • end face 15e of each side wall member 15 and the end face 16c of the lid member 16 that form the ventilation port 13b are smoothly connected to each other.
  • end face 15e and end face 16c are positioned on the same plane. In other words, end face 15e, end face 11d, and end face 16c are positioned on the same plane.
  • the cooling device 10 may further include a channel sealing member that seals the channel forming portion 13 fixed to the heat receiving block 11 while leaving the ventilation holes 13a and 13b. preferable.
  • the channel sealing member By providing the channel sealing member, the channel 14 is sealed except for the ventilation holes 13a and 13b. In other words, air is prevented from flowing into and out of flow path 14 without passing through ventilation holes 13a and 13b. As a result, the air flowing through the flow path 14 is suppressed from flowing into the internal space of the housing 20 in which the electronic component 21 is accommodated, and the airtightness of the in-vehicle device 1 can be improved.
  • the cooling device 10 preferably includes a first flow path sealing member that is filled between the side surface 15b of each side wall member 15 and the second main surface 11b of the heat receiving block 11 and has sealing properties.
  • the first flow path sealing member is, for example, a waterproof and dustproof resin.
  • the portion where the side surface 15b of each side wall member 15 and the second main surface 11b of the heat receiving block 11 are in contact with each other is subjected to waterproof and dustproof treatment by applying resin, and then each side wall member 15 is fastened to the heat receiving block 11 by a fastening member.
  • the portion where the side surface 15b of each side wall member 15 and the second main surface 11b of the heat receiving block 11 abut against each other is subjected to waterproof and dustproof treatment to ensure hermeticity, thereby preventing the in-vehicle device 1 from It becomes possible to improve hermeticity.
  • the cooling device 10 preferably includes a second flow path sealing member that is filled between the side surface 15c of each side wall member 15 and the main surface 16a of the lid member 16 and has airtightness.
  • the second flow path sealing member is, for example, a waterproof and dustproof resin.
  • each side wall member 15 and the lid member 16 are fastened with a fastening member. do it.
  • the portion where the side surface 15c of each side wall member 15 and the main surface 16a of the lid member 16 abut against each other is subjected to waterproof and dustproof treatment for ensuring airtightness. can be increased.
  • the cooling device 10 since the flow path 14 through which the air flows is formed inside the cooling device 10, it is necessary to provide a duct for flowing the cooling air to the in-vehicle device 1. There is no Therefore, the structure of the in-vehicle device 1 is simpler than in-vehicle devices having ducts.
  • the in-vehicle device 1 according to Embodiment 1 does not require a duct, so there are few locations that require waterproofing and dustproofing, and the manufacturing process is simple.
  • the in-vehicle device 1 disclosed in the first embodiment passes external air through the flow path 14 and radiates the heat generated in the electronic component 21 to the air via the heat receiving block 11 and the heat radiating member 12.
  • 21 is cooled by a natural air cooling system, but a forced air cooling system may be used.
  • a forced-air-cooled vehicle-mounted device 2 will be described in a second embodiment.
  • the in-vehicle device 2 includes, in addition to the configuration of the in-vehicle device 1 according to Embodiment 1, a partition member 22 that divides the inside of the housing 20 into a first space 23 and a second space 24, and a blower 25 provided in the second space 24 .
  • the entire cooling device 10 and the electronic components 21 are accommodated in the first space 23 .
  • the partition member 22 is provided inside the housing 20 with its main surface perpendicular to the Y-axis direction, and divides the inside of the housing 20 into a first space 23 and a second space 24 .
  • the partition member 22 is formed with a second opening 22 a that faces the ventilation port 13 a of the flow path forming portion 13 of the cooling device 10 accommodated in the first space 23 . It is preferable that the second opening 22a is smaller than the ventilation opening 13a, and the edge of the second opening 22a is located inside the edge of the ventilation opening 13a in the XZ plane.
  • An intake/exhaust port 20c and a first opening 20d are formed on two surfaces of the housing 20 that face each other in the Y-axis direction. Specifically, the intake/exhaust port 20c is formed in the surface of the housing 20 that is in contact with the second space 24 and perpendicular to the Y-axis. The intake/exhaust port 20 c allows the air outside the housing 20 to flow into the second space 24 or allows the air in the second space 24 to flow out of the housing 20 .
  • a first opening 20d is formed in the surface of the housing 20 that is in contact with the first space 23 and perpendicular to the Y-axis.
  • the first opening 20 d faces the ventilation port 13 b of the flow path forming portion 13 of the cooling device 10 accommodated in the first space 23 . It is preferable that the first opening 20d is smaller than the ventilation opening 13b, and the edge of the first opening 20d is located inside the edge of the ventilation opening 13b in the XZ plane.
  • FIG. 7 which is a cross-sectional view taken along line VII-VII in FIG. It has the same configuration as the cooling device 10 provided in the device 1 . Specifically, the width of the heat receiving block 11 in the X-axis direction is longer than the width of the lid member 16 in the X-axis direction.
  • the ventilation opening 13 a of the flow passage forming portion 13 faces the second opening 22 a formed in the partition member 22
  • the ventilation opening 13 b of the flow passage forming portion 13 faces the housing 20 .
  • the second opening 22a is connected to the ventilation port 13a
  • the first opening 20d is connected to the ventilation port 13b.
  • the flow path 14 formed by the flow path forming portion 13 communicates with the outside of the housing 20 via the second opening 22a, the second space 24, and the intake/exhaust port 20c.
  • the channel 14 communicates with the outside of the housing 20 via the first opening 20d.
  • the cooling device 10 has three surfaces continuous with the first main surface 11a and the second main surface 11b of the heat receiving block 11, respectively, in contact with the housing 20, and the other one It is fixed to the housing 20 with the side surface in contact with the partition member 22 .
  • the cooling device 10 has four surfaces that are continuous with the first main surface 11a and the second main surface 11b. is fixed to the housing 20 in a state in which the is in contact with the housing 20 .
  • the end surface 16 b of the lid member 16 abuts the partition member 22 and the end surface 16 c of the lid member 16 abuts the housing 20 .
  • the blower 25 shown in FIG. 6 blows the air outside the housing 20 that has flowed into the second space 24 from the intake/exhaust port 20 c formed in the housing 20 to the flow path 14 of the cooling device 10 .
  • the outlet of the blower 25 is connected to the second opening 22a.
  • the blower 25 sucks the air outside the housing 20 that has flowed into the second space 24 and exhausts it to the flow path 14 of the cooling device 10 through the second opening 22a.
  • the air outside the housing 20 that has flowed into the second space 24 from the air intake/exhaust port 20c of the housing 20 is sucked by the blower 25 and exhausted to the flow path 14 through the discharge port of the blower 25.
  • the air exhausted from the blower 25 and flowed into the flow path 14 passes through the flow path 14 and is discharged to the outside of the housing 20 from the first opening 20 d of the housing 20 .
  • the heat generated by the electronic component 21 is radiated to the air passing through the flow path 14 via the heat receiving block 11 and the heat radiating member 12 , thereby cooling the electronic component 21 . As shown in FIGS.
  • the flow path 14 and the first space 23 of the housing 20 housing the electronic component 21 are separated by the heat receiving block 11, the pair of side wall members 15, and the lid member 16. Therefore, the air outside the housing 20 is prevented from flowing into the space between the cooling device 10 and the housing 20 in the first space 23 . As a result, the inflow of dust, moisture, etc. into the space between the cooling device 10 and the housing 20 in the first space 23 is suppressed.
  • the cooling device 10 since the flow path 14 through which the air flows is formed inside the cooling device 10, a duct for flowing the cooling air to the in-vehicle device 2 is not provided. Forced air cooling is possible. Therefore, the structure of the in-vehicle device 2 is simpler than in-vehicle devices having ducts.
  • the in-vehicle device 2 according to Embodiment 2 does not require a duct, so there are few locations that require waterproofing and dustproofing, and the manufacturing process is simple.
  • the embodiments of the present disclosure are not limited to the above examples.
  • the embodiments described above can be combined.
  • the inside of the housing 20 of the in-vehicle device 1 may be divided into a first space 23 and a second space 24 by a partition member 22 whose main surface is orthogonal to the Y-axis direction, as in the in-vehicle device 2. good.
  • the partition member 22 need not be formed with the second opening 22a.
  • the first openings 20a and 20b may be formed on two surfaces of the housing 20 that are in contact with the first space 23 and face each other in the Z-axis direction.
  • the method of arranging the partition member 22 is not limited to the above example.
  • the partition member 22 in the housing 20 of the in-vehicle device 2 , the partition member 22 may be provided inside the housing 20 such that the main surface is perpendicular to the Z-axis direction.
  • the second space 24 may be located on the lower side in the vertical direction
  • the first space 23 may be provided on the upper side in the vertical direction.
  • fixing includes being integrally formed.
  • the heat radiating member 12 and the heat receiving block 11 may be integrally formed.
  • the heat generated by the electronic component 21 is more efficiently transferred to the air flowing through the flow path 14 via the heat receiving block 11 and the heat radiation member 12 .
  • a pair of side wall member 15 and lid member 16 may be integrally formed.
  • integrally forming the pair of side wall members 15 and lid member 16 it is possible to more reliably prevent dust, moisture, and the like from flowing into the housing 20 from the flow path 14 . As a result, it becomes possible to enhance the airtightness of the in-vehicle devices 1 and 2 .
  • each heat dissipation member 12 may be a protrusion extending in a direction away from the second main surface 11b. In this case, it is preferable to make the tip of each heat radiating member 12 thinner than the portion fixed to the second main surface 11b.
  • the heat dissipation member 12 may be a heat pipe.
  • the heat radiating member 12 has a main pipe that is embedded in the heat receiving block 11 and extends along the air flow in the flow path 14, and a branch pipe that communicates with the main pipe and extends in a direction away from the heat receiving block 11. is preferred. Furthermore, fins fixed to the branch pipe may be provided.
  • the number of ventilation holes 13a and 13b is not limited to two.
  • the flow path forming portion 13 forms a flow path 14 having branches, and has one ventilation port 13a for allowing air to flow into the flow path 14 and a plurality of ventilation ports 13b for causing air to flow out of the flow path 14. You may
  • each side wall member 15 and lid member 16 is arbitrary as long as the shape can form the flow path 14 .
  • the lid member 16 may be fixed to the main surface 15 a of each side wall member 15 .
  • the portion where the cooling device 10 and the housing 20 abut is subjected to waterproof and dustproof treatment to ensure the airtightness.
  • the portion where the cooling device 10 and the partition member 22 abut is subjected to waterproofing and dustproofing treatment to ensure airtightness.
  • a member may be provided to block the space between the cooling device 10 and the housing 20 in order to improve the airtightness of the in-vehicle devices 1 and 2 .
  • the vehicle-mounted device 3 further includes a first housing sealing member 17a that abuts against the cooling device 10 and the periphery of the first opening 20a.
  • the first enclosure sealing member 17a contacts the end surface 11c of the heat receiving block 11, the end surface 15d of each side wall member 15, and the end surface 16b of the lid member 16 shown in FIG. abuts on the housing 20 of the When the first housing sealing member 17a is pressed between the cooling device 10 and the housing 20 and deformed, the first housing sealing member 17a closes the gap between the cooling device 10 and the housing 20. .
  • the in-vehicle device 3 shown in FIG. 8 further includes a first housing sealing member 17b that contacts the cooling device 10 and the periphery of the first opening 20b. Specifically, the first housing sealing member 17b abuts on the end surface 11d of the heat receiving block 11, the end surface 15e of each side wall member 15, and the end surface 16c of the lid member 16 shown in FIG. abuts on the housing 20 of the When the first housing sealing member 17b is pressed between the cooling device 10 and the housing 20 and deformed, the first housing sealing member 17b closes the gap between the cooling device 10 and the housing 20. .
  • the first housing sealing members 17a and 17b are packings, for example. By providing the first housing sealing members 17a and 17b, the air outside the housing 20 is prevented from flowing into the interior of the housing 20 from the flow path .
  • a member that closes the space between the cooling device 10 and the partition member 22 may be provided in order to improve the airtightness of the in-vehicle device 2 .
  • the vehicle-mounted device 4 shown in FIG. the first housing sealing member 17c abuts on the end surface 11d of the heat receiving block 11, the end surface 15e of each side wall member 15, and the end surface 16c of the lid member 16 shown in FIG. abuts on the housing 20 of the When the first housing sealing member 17c is pressed between the cooling device 10 and the housing 20 and deformed, the first housing sealing member 17c closes the gap between the cooling device 10 and the housing 20. .
  • the in-vehicle device 4 shown in FIG. 9 further includes a second housing sealing member 18 that contacts the cooling device 10 and the periphery of the second opening 22a.
  • the second housing sealing member 18 abuts on the end surface 11c of the heat receiving block 11, the end surface 15d of each side wall member 15, and the end surface 16b of the lid member 16 shown in FIG. abuts on the partition member 22 of .
  • the gap generated between the cooling device 10 and the partition member 22 is closed by the second housing sealing member 18. .
  • the first housing sealing member 17c and the second housing sealing member 18 are, for example, packings. By providing the first housing sealing member 17 c and the second housing sealing member 18 , the air outside the housing 20 is prevented from flowing into the first space 23 through the flow path 14 .
  • each side wall member 15 may be fixed to the heat receiving block 11 by brazing.
  • the brazing material suppresses the inflow of air from the flow path 14 to the inside of the housing 20 in which the electronic component 21 is accommodated, the side surface 15b of each side wall member 15 and the second main surface 11b of the heat receiving block 11 are separated from each other. Waterproof and dustproof treatment is not necessary for the part where the contact is made.
  • the method of fixing the lid member 16 to each side wall member 15 is not limited to the fastening by the fastening members described in the first embodiment.
  • the lid member 16 may be fixed to each side wall member 15 by brazing.
  • the brazing material suppresses the inflow of air from the flow path 14 into the housing 20 in which the electronic component 21 is accommodated, the main surface 16a of the lid member 16 and the side surfaces 15c of the side wall members 15 come into contact with each other. Waterproofing and dustproofing of contacting parts is not required.
  • the first openings 20a, 20b, 20d and the intake/exhaust port 20c are not limited to the examples described above, and are formed at arbitrary positions that allow air to flow into the flow path 14 of the cooling device 10 and allow the flowed air to flow out. All you have to do is As an example, the intake/exhaust port 20c may be formed on a surface that is in contact with the second space 24 of the housing 20 of the vehicle-mounted device 2 shown in FIG. 6 and that is perpendicular to the X-axis direction.
  • the air outside the housing 20 flows into the second space 24 through the intake/exhaust port 20c in the axial direction of the blower, that is, in the X-axis direction, and the air sucked by the blower flows. It is exhausted to path 14 .
  • the blower 25 may be accommodated in the housing 20 in any direction according to the air intake direction and the exhaust direction of the blower 25 .
  • the blower 25 may be provided outside the housing 20 .
  • the blower 25 may be provided outside the housing 20 at a position adjacent to the first opening 20d, and the blower 25 may blow the air outside the housing 20 to the flow path 14 through the first opening 20d.
  • the air that has flowed into the flow path 14 through the first opening 20d flows into the second space 24 through the second opening 22a, and then flows out of the housing 20 through the intake/exhaust port 20c.
  • the in-vehicle device 1-4 is not limited to a power conversion device that converts power supplied from an overhead wire into three-phase AC power for supplying a traction motor, and may be any device that has a heating element and is mounted on a vehicle.
  • the in-vehicle device 1-4 is not limited to railroad vehicles, and can be installed in any moving body such as automobiles, aircraft, and ships.
  • the enclosure 20 may be mounted on the roof of a railroad vehicle.
  • the direction in which the housing 20 is attached to the railway vehicle is not limited to the above example.
  • the in-vehicle device 1 may be mounted on a railroad vehicle such that the main surface of the heat dissipation member 12 is perpendicular to the Y-axis direction.
  • cooling device 11 heat receiving block, 11a first main surface, 11b second main surface, 11c, 11d, 15d, 15e, 16b, 16c end surface, 12 heat dissipation member, 13 flow path Forming portion, 13a, 13b Ventilation port, 14 Flow path, 15 Side wall member, 15a, 16a Main surface, 15b, 15c Side surface, 16 Lid member, 17a, 17b, 17c First enclosure sealing member, 18 Second enclosure sealing Member, 20 Housing, 20a, 20b, 20d First opening, 20c Air intake/exhaust port, 21 Electronic component, 22 Partition member, 22a Second opening, 23 First space, 24 Second space, 25 Blower, 111, 112, 151, 152, 161, 162 ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
PCT/JP2021/009878 2021-03-11 2021-03-11 冷却装置および車載機器 Ceased WO2022190325A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US18/263,969 US12588170B2 (en) 2021-03-11 2021-03-11 In-vehicle device including cooling apparatus
DE112021007253.6T DE112021007253T5 (de) 2021-03-11 2021-03-11 Kühlvorrichtung und fahrzeugseitige vorrichtung
JP2023505017A JP7418657B2 (ja) 2021-03-11 2021-03-11 冷却装置および車載機器
PCT/JP2021/009878 WO2022190325A1 (ja) 2021-03-11 2021-03-11 冷却装置および車載機器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/009878 WO2022190325A1 (ja) 2021-03-11 2021-03-11 冷却装置および車載機器

Publications (1)

Publication Number Publication Date
WO2022190325A1 true WO2022190325A1 (ja) 2022-09-15

Family

ID=83226453

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/009878 Ceased WO2022190325A1 (ja) 2021-03-11 2021-03-11 冷却装置および車載機器

Country Status (4)

Country Link
US (1) US12588170B2 (https=)
JP (1) JP7418657B2 (https=)
DE (1) DE112021007253T5 (https=)
WO (1) WO2022190325A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023144914A1 (ja) * 2022-01-26 2023-08-03 三菱電機株式会社 電子機器
WO2026048417A1 (ja) * 2024-08-28 2026-03-05 ソニーグループ株式会社 電子機器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009130258A (ja) * 2007-11-27 2009-06-11 Denso Corp 発熱素子の冷却構造
JP2011188671A (ja) * 2010-03-10 2011-09-22 Daihen Corp 電源装置
WO2017208384A1 (ja) * 2016-06-01 2017-12-07 三菱電機株式会社 電力変換装置
WO2018020615A1 (ja) * 2016-07-27 2018-02-01 三菱電機株式会社 電力変換装置
JP2019129229A (ja) * 2018-01-24 2019-08-01 株式会社トランストロン 電子装置
JP2020036456A (ja) * 2018-08-30 2020-03-05 ニチコン株式会社 設置型電力変換装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW484721U (en) * 2000-11-06 2002-04-21 Giga Byte Tech Co Ltd Improved airflow guiding structure of server
US7331381B2 (en) * 2006-02-16 2008-02-19 Allcomp, Inc. Hybrid heat exchangers
US7457114B2 (en) * 2007-01-31 2008-11-25 Inventec Corporation Heat dissipation air duct
EP2412215A1 (en) * 2009-03-25 2012-02-01 Hewlett-Packard Development Company, L.P. Grid heat sink
US8462505B2 (en) 2010-03-10 2013-06-11 Daihen Corporation Power supply apparatus including fan for air cooling
CN102213984A (zh) * 2010-04-09 2011-10-12 鸿富锦精密工业（深圳）有限公司 散热系统
JP5425828B2 (ja) 2011-03-08 2014-02-26 株式会社日立製作所 高速車両用機器装置
JP6918765B2 (ja) * 2018-11-29 2021-08-11 ファナック株式会社 放熱装置
TWI722731B (zh) * 2019-12-23 2021-03-21 廣達電腦股份有限公司 電子裝置及其散熱組件
CN112867366A (zh) * 2021-02-19 2021-05-28 阳光电源股份有限公司 机柜风道、机柜总成及光伏逆变器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009130258A (ja) * 2007-11-27 2009-06-11 Denso Corp 発熱素子の冷却構造
JP2011188671A (ja) * 2010-03-10 2011-09-22 Daihen Corp 電源装置
WO2017208384A1 (ja) * 2016-06-01 2017-12-07 三菱電機株式会社 電力変換装置
WO2018020615A1 (ja) * 2016-07-27 2018-02-01 三菱電機株式会社 電力変換装置
JP2019129229A (ja) * 2018-01-24 2019-08-01 株式会社トランストロン 電子装置
JP2020036456A (ja) * 2018-08-30 2020-03-05 ニチコン株式会社 設置型電力変換装置

Also Published As

Publication number Publication date
US12588170B2 (en) 2026-03-24
US20240306349A1 (en) 2024-09-12
JPWO2022190325A1 (https=) 2022-09-15
JP7418657B2 (ja) 2024-01-19
DE112021007253T5 (de) 2024-01-11

Similar Documents

Publication Publication Date Title
CN103538456B (zh) 车辆的电池组
JP5161533B2 (ja) バッテリモジュール及びバッテリパック
JP2015050257A (ja) 車両用電力変換装置及び鉄道車両
JP7418657B2 (ja) 冷却装置および車載機器
JP7565804B2 (ja) 放熱構造
CN113645812B (zh) 用于电子设备的散热结构以及电子设备
CN114222472B (zh) 车载多媒体主机散热结构及车载多媒体主机
TWI822408B (zh) 無線充電組件
CN221930483U (zh) 电子设备
JP2001260877A (ja) 鉄道車両用電力変換装置
JPWO2022190325A5 (https=)
JPWO2019049405A1 (ja) 鉄道車両の電力変換装置および電力変換装置を搭載した鉄道車両
US11540427B2 (en) Converter having a separate interior
JP2018037642A (ja) 鉄道車両用電力変換装置
CN101151585A (zh) 冷却装置
JP7724475B2 (ja) 充放電装置
JP7738811B2 (ja) コイル装置および車載機器
CN221585397U (zh) 车载设备
JP3879080B2 (ja) 車両用発熱電気品の冷却装置
CN220570846U (zh) 一种车载终端及车辆
CN223462907U (zh) 滑台结构和直线电机模组
JP7829817B2 (ja) 電子機器
WO2015190226A1 (ja) 複数の床下機器を備えた鉄道車両
JP2005353880A (ja) 電力変換装置
CN223484380U (zh) 电控盒、空调外机和空调器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21930178

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023505017

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 18263969

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 202327056832

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 112021007253

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21930178

Country of ref document: EP

Kind code of ref document: A1

WWG Wipo information: grant in national office

Ref document number: 18263969

Country of ref document: US