WO2017209203A1 - 基板ユニット - Google Patents

基板ユニット Download PDF

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Publication number
WO2017209203A1
WO2017209203A1 PCT/JP2017/020334 JP2017020334W WO2017209203A1 WO 2017209203 A1 WO2017209203 A1 WO 2017209203A1 JP 2017020334 W JP2017020334 W JP 2017020334W WO 2017209203 A1 WO2017209203 A1 WO 2017209203A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
side wall
opening
circuit board
substrate unit
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/JP2017/020334
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
幸貴 内田
池田　潤
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.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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 Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to CN201780033068.1A priority Critical patent/CN109196965B/zh
Priority to US16/305,933 priority patent/US10582632B2/en
Priority to DE112017002785.3T priority patent/DE112017002785B4/de
Publication of WO2017209203A1 publication Critical patent/WO2017209203A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/0052—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by joining features of the housing parts
    • 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
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
    • 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
    • H05K5/0217—Mechanical details of casings
    • 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
    • H05K5/06—Hermetically-sealed casings
    • H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane

Definitions

  • the present invention relates to a substrate unit.
  • This application claims priority based on Japanese Patent Application No. 2016-111348 filed on Jun. 2, 2016, and incorporates all the contents described in the aforementioned Japanese application.
  • a vehicle-mounted case or the like that houses an electrical device is provided with a waterproof structure that prevents a failure of the electrical device that is a contained object due to water intrusion.
  • the substrate unit according to the present disclosure is: A circuit board; A connector portion mounted on the circuit board; A board unit comprising a case for housing the circuit board,
  • the case is A lower case that opens upward;
  • the connector part is provided with an opening that is open to the side wall of the case so that the connector part can be fitted with the mating connector part,
  • the side wall A step surface extending outward from a lower region of the opening; A plurality of longitudinal groove portions having one end connected to the step surface and the other end connected to the lower edge of the side wall.
  • FIG. 1 is a schematic perspective view showing a substrate unit according to Embodiment 1.
  • FIG. 1 is a schematic exploded perspective view showing a substrate unit according to Embodiment 1.
  • FIG. 4 is a schematic enlarged view showing the vicinity of a lower concave portion of the lower case provided in the substrate unit according to the first embodiment.
  • FIG. 3 is a front view showing the substrate unit according to the first embodiment. 3 is a schematic enlarged view showing the vicinity of an opening of a case provided in the substrate unit according to Embodiment 1.
  • an object of the present disclosure is to provide a substrate unit that can suppress the ingress of water into the accommodation space with a simple configuration.
  • a substrate unit is A circuit board; A connector portion mounted on the circuit board; A board unit comprising a case for housing the circuit board, The case is A lower case that opens upward; An upper cover covering the opening of the lower case; The connector part is provided with an opening that is open to the side wall of the case so that the connector part can be fitted with the mating connector part, The side wall A stepped surface extending outward from a lower region of the opening; A plurality of longitudinal groove portions having one end connected to the step surface and the other end connected to the lower edge of the side wall.
  • the water droplets drip from above and hit the board unit water may enter the case and damage the circuit board.
  • water dripped onto the case of the substrate unit from above may flow along the surface of the case and flow toward the opening formed on the side wall.
  • water that has flowed to the opening side may stay on the step surface and enter the case from the opening.
  • step difference surface can be guide
  • since the longitudinal groove is provided on the side wall of the case there is no need to separately provide a seal member, and the assembly workability of the substrate unit is excellent.
  • the side wall includes a protruding portion that covers the connector portion and protrudes outward, and the lower end portion of the protruding portion is below the lower edge of the opening.
  • the form which is located is mentioned.
  • the cover part is covered and the lower end is provided with a protruding part positioned below the lower edge of the opening part, so that the upper part and both sides of the opening part can be surrounded by the protruding part.
  • the lower end portion of the protruding portion is positioned below the lower edge of the opening portion, so that while passing along the outer surface of the side portion, Water can be prevented from entering, and the water can be reliably guided onto the step surface.
  • the water that has flowed from the lower end portion of the protruding portion onto the step surface can be guided to the lower edge of the case along the longitudinal groove portion.
  • the protruding portion may include a lateral groove portion formed on the upper outer surface toward both sides.
  • the water that has flowed up to the upper outer surface of the protruding portion flows down to the horizontal groove portion by providing the horizontal groove portion on the upper outer surface of the protruding portion. Since the lateral groove portion is formed toward both sides of the protruding portion, the water flowing down to the lateral groove portion always flows along the outer side surface of the protruding portion. Therefore, it can suppress that water wraps around the end surface of a protrusion part from an upper outer surface, and permeates into a case inside from an opening part. Since the lower end of the protrusion is positioned below the lower edge of the opening, the water can be reliably guided onto the step surface and guided to the lower edge of the case along the longitudinal groove.
  • the vertical groove portion may have a form in which an upper end portion thereof is formed in an inclined shape or an R shape in a downward direction.
  • the water staying on the step surface can be easily guided to the longitudinal groove side.
  • the substrate unit As an example of the substrate unit, a form in which the width of the vertical groove portion is a width in which a capillary phenomenon occurs.
  • the water staying on the step surface can be guided to the lower edge of the case along the vertical groove portion while being drawn to the vertical groove portion. Therefore, it is difficult for water to stay on the step surface.
  • the substrate unit 1 according to the first embodiment will be described with reference to FIGS.
  • the board unit 1 includes a circuit board 10, a connector unit 20 mounted on the circuit board 10, and a case 40 that houses the circuit board 10.
  • the case 40 includes a lower case 42 that opens upward, an upper cover 44 that covers the opening of the lower case 42, and an opening 46 that opens in the side wall of the case 40.
  • the opening 46 is open so that the connector 20 can be fitted to a mating connector (not shown).
  • One feature of the substrate unit 1 according to the first embodiment is that the side wall of the case 40 is provided with a waterproof structure that prevents water from entering the case 40 from the opening 46.
  • each configuration will be described in detail, and then the flow of water by the waterproof structure will be described.
  • the lower case 42 side of the case 40 is the lower side
  • the upper cover 44 side is the upper side.
  • it is a direction orthogonal to the up-down direction of case 40, Comprising: Let the side by which the connector part 20 is arrange
  • the circuit board 10 is disposed on a bus bar 60 to be described later, and has a substantially rectangular shape in which a conductive pattern (not shown) is formed on the surface opposite to the bus bar 60.
  • a conductive pattern (not shown) is formed on the surface opposite to the bus bar 60.
  • the conductive path formed by the conductive pattern is a control conductive path (a part of the circuit).
  • electronic components such as switching elements and a connector portion 20 described later are mounted.
  • the connector part 20 is attached to the peripheral part of the circuit board 10, as shown in FIG. In the connector portion 20, the connector terminal 24 is held in the housing, and the connector terminal 24 extends rearward of the housing and is soldered to the conductive path of the circuit board 10.
  • the connector unit 20 is connected to a counterpart connector unit such as an external control device (not shown).
  • the case 40 includes a lower case 42 that opens upward, and an upper cover 44 that covers the opening of the lower case 42.
  • the circuit board 10 and the connector part 20 are accommodated in an internal space formed by combining the lower case 42 and the upper cover 44.
  • an opening 46 (FIG. 4) is formed in the side wall formed by combining the lower case 42 and the upper cover 44 so that the connector part 20 can be fitted to the mating connector part by the lower case 42 and the upper cover 44. Is formed.
  • the connector portion 20 is positioned with respect to the case 40 by being sandwiched between the lower case 42 and the upper cover 44.
  • the board unit 1 has a step surface 421 extending outward from a region below the opening 46 on the side wall of the case 40, and a waterproof structure of the case 40, with one end connected to the step surface 421 and the other end on the side wall.
  • One of the features is that it includes a plurality of vertical groove portions 48 connected to the lower edge of the rim.
  • the lower case 42 has a flat bottom portion 42a on which the circuit board 10 and a bus bar 60 to be described later are placed, and a substantially rectangular frame shape that is shallowly provided from the periphery of the bottom portion 42a.
  • the side wall portion 42b is formed in a substantially rectangular box shape having an opening on the opposite side (upper side) to the bottom portion 42a.
  • the bottom part 42a and the side wall part 42b may be integrally molded members, may not be integrally molded, are independent members, and may be integrated by a fixing member such as a bolt. .
  • the bottom 42a has a rectangular shape that is slightly larger than the circuit board 10 and is constituted by a heat sink that dissipates heat generated from the electronic components mounted on the circuit board 10.
  • a heat sink 42a for example, a high heat conductive metal plate such as aluminum or copper coated with insulation can be used.
  • the side wall part 42 b is a frame that is continuous over the entire circumference of the bottom part 42 a and covers the four sides of the outer periphery of the circuit board 10 including the connector part 20.
  • the side wall portion 42 b includes a lower concave portion 420 at the front center portion of the case 40.
  • the lower concave portion 420 forms an opening 46 in which the connector portion 20 is disposed, together with an upper concave portion 440 of the upper cover 44 described later.
  • the lower surface 420 a (FIG. 3) on the outer side of the lower recess 420 serves as the lower edge of the opening 46.
  • the lower concave portion 420 can be appropriately selected in such a size that the connector portion 20 can be disposed in the opening 46 formed by the upper concave portion 440 and can be positioned with respect to the case 40 of the connector portion 20.
  • the side wall part 42b is formed between the upper side wall part 42bx in which the lower concave part 420 is formed, the lower side wall part 42by located in the lower region of the upper side wall part 42bx, and the upper side wall part 42bx and the lower side wall part 42by.
  • a step surface 421 extending in the direction.
  • the step surface 421 is provided to ensure the strength (rigidity) of the lower case 42.
  • the step surface 421 is configured by a surface that intersects the upper side wall portion 42bx and the lower side wall portion 42by.
  • the step surface 421 includes a planar low step portion that is orthogonal to the outer surface of the side wall portion 42b at the center portion, a high step portion that is connected to both side ends of the low step portion by curved surfaces, and that is above the low step portion. Is provided.
  • the high step portion is continuous with an insertion groove 422 to be described later.
  • a longitudinal groove portion 48 described later is formed on the outer surface of the lower side wall portion 42by.
  • the side wall portion 42 b includes an insertion groove 422 into which the side wall portion 44 b of the upper cover 44 is inserted into a part of the upper surface in the circumferential direction, and a side wall portion 44 b of the upper cover 44 inserted into the insertion groove 422. And an engaging portion (engagement protrusion 423) to be fixed.
  • the insertion groove 422 is formed according to the shape of the side wall 44 b of the upper cover 44.
  • the engagement protrusions 423 are provided at appropriate positions in the circumferential direction of the side wall portion 42b, and are provided on the front side wall portion 42b and the left and right side wall portions 42b.
  • the base part 424 in which the extension part 62 of the bus bar 60 mentioned later is mounted in the upper surface of the side wall part 42b of the right-and-left both sides of the side wall part 42b is provided.
  • a male screw portion 80 projects from the upper surface upward.
  • the male screw portion 80 includes a head portion and a shaft portion, and the head portion is fixed to the base portion 424.
  • the base part 424 includes a notch in which the head of the male screw part 80 can be inserted from the side, and a fixing part that fixes the head in the notch.
  • the lower case 42 is made of a synthetic resin such as polypropylene (PP) or polyamide (PA).
  • PP polypropylene
  • PA polyamide
  • the upper cover 44 covers the opening of the lower case 42, and forms a flat ceiling portion 44 a that forms the upper surface of the case 40, and is shallowly provided from the periphery of the ceiling portion 44 a. It is an integrated body composed of a substantially rectangular frame-shaped side wall portion 44b. In the upper cover 44, the side wall 44b is inserted into the insertion groove 422 of the lower case 42, and the engagement protrusion 423 of the lower case 42 is engaged with the engagement hole 443 provided in the side wall 44b. It is fixed to 42 and integrated.
  • the upper cover 44 is formed in a shape that covers the upper part of the lower case 42 with the base 424 of the lower case 42 exposed, and has a notch 44c in a part of the outer wall.
  • the cutout portion 44c ensures a gap through which the extended portion 62 of the bus bar 60 can pass even when the upper cover 44 is fixed to the lower case 42. By this gap, the extended portion 62 of the bus bar 60 can be placed on the upper surface of the base portion 424.
  • the side wall portion 44 b includes an upper concave portion 440 in the front center portion of the case 40.
  • the upper recessed portion 440 forms an opening 46 in which the connector portion 20 is disposed with the lower recessed portion 420 of the lower case 42.
  • the connector part 20 is arrange
  • the side wall portion 44b includes a protruding portion 442 that covers the exposed portion of the connector portion 20 and protrudes outward. As shown in FIG. 4, the protruding portion 442 has an inverted U-shaped end surface including an upper portion 442 u and both side portions 442 s and 442 s that surround the upper side and both sides of the connector portion 20.
  • a lower end portion of the projecting portion 442 (a lower end portion of both side portions 442s and 442s) is located below the lower edge of the opening 46 (connector portion 20).
  • the lower end portion of the protruding portion 442 is located above the step surface 421 of the lower case 42 with a slight gap.
  • the protruding portion 442 includes a lateral groove portion 442d (FIGS. 2 and 5) formed on the outer surface of the upper portion 442u toward the side portions 442s and 442s.
  • the lateral groove portion 442d has a flat bottom surface in the length direction.
  • the bottom surface of the lateral groove portion 442d may be an inclined surface or a curved surface so that the central portion in the longitudinal direction is high and the side portions 442s and 442s are low.
  • the upper cover 44 is made of a synthetic resin such as polypropylene (PP) or polyamide (PA), as with the lower case 42.
  • PP polypropylene
  • PA polyamide
  • the vertical groove portion 48 is formed in a region below the step surface 421 in the side wall portion 42 b of the lower case 42. One end of the vertical groove portion 48 is connected to the step surface 421 and the other end is connected to the lower edge of the side wall portion 42b. It is preferable that the vertical groove part 48 is formed in the area
  • the longitudinal groove 48 preferably has a width that causes capillary action.
  • the capillary phenomenon which considered the vertical groove part 48 as a capillary tube arises, and the flow of the water mentioned later can be guide
  • a plurality of the longitudinal groove portions 48 are formed in a region corresponding to the low step portion of the step surface 421. As the number of the vertical groove portions 48 increases, the flow of water described later can be effectively guided. On the other hand, when the number of the vertical groove portions 48 is too large, the width of the vertical groove portions 48 becomes small, or the width of the portion (the flange portion 480) located between the adjacent vertical groove portions 48 becomes small. If the width C of the collar portion 480 is too narrow, it is difficult to partition between adjacent longitudinal groove portions 48, and there is a possibility that a capillary phenomenon is difficult to occur.
  • the longitudinal groove portion 48 is preferably formed uniformly in a region corresponding to the central portion of the stepped surface 421 according to the width and number of capillarity and the width of the flange portion 480.
  • the vertical groove portion 48 includes an R-shaped groove R portion 48R directed downward at the upper end portion thereof.
  • the shape may be inclined.
  • the upper end part of the collar part 480 can also be made into the R shape and inclination shape which go below.
  • the bus bar 60 is a plate-like member that constitutes a power circuit.
  • the bus bar 60 includes a plurality of bus bar pieces and is arranged in a predetermined layout. As shown in FIG. 2, the bus bar 60 includes a main body portion on which the circuit board 10 is disposed, and an extending portion 62 that is formed integrally with the main body portion and protrudes from the main body portion and is bent in a step shape. .
  • the main body portion of the bus bar 60 is fixed to the surface of the circuit board 10 opposite to the surface on which the conductive pattern is formed via, for example, an insulating adhesive or an adhesive sheet. Thereby, the circuit board 10 and the bus bar 60 can be handled as an integrated object.
  • the bottom (heat sink) 42 a of the lower case 42 is disposed on the surface opposite to the surface on which the circuit board 10 is disposed.
  • the extended part 62 of the bus bar 60 is a part for electrically connecting an external device, and a connection terminal of an electric wire (wire harness) (not shown) is electrically connected thereto.
  • the extending portion 62 is formed with a through hole 60h through which the male screw portion 80 passes.
  • the shaft portion of the male screw portion 80 is inserted into the through hole 60h of the bus bar 60, the extending portion 62 is placed on the upper surface of the base portion 424, and is tightened with a nut together with a connection terminal (not shown) of the electric wire.
  • extending portions 62 are respectively provided from two opposite sides of the main body portion of the bus bar 60, and electric wire connection terminals are electrically connected to the extending portions 62, respectively.
  • the water transmitted through the side portion 442s is stepped from the lower end portion of the side portion 442s. It stays on the surface 421.
  • the water staying on the step surface 421 is guided to the lower edge of the side wall portion 42b along the longitudinal groove portion 48 that connects the step surface 421 and the side wall portion 42b of the lower case 42.
  • the connector When the case itself is tilted so that the portion 20 side faces the vehicle lower side, the invading water is transmitted to the high step portion of the step surface 421.
  • the water that has flowed to the high step portion is guided to the low step portion through the curved surface, and is further guided along the vertical groove portion 48 to the lower edge of the side wall portion 42b.
  • substrate unit 1 can guide the water which stayed on the level
  • the width of the vertical groove portion 48 is a width that causes capillary action, the water staying on the step surface 421 can be guided to the lower edge of the side wall portion 42 b along the vertical groove portion 48 while being drawn to the vertical groove portion 48. Therefore, it is possible to effectively prevent water from entering the case.
  • the lower end portion covers the connector portion 20 and includes a protruding portion 442 positioned below the lower edge of the connector portion 20 (opening portion 46), thereby protruding above and both sides of the opening portion 46. It can be surrounded by the portion 442, and it is difficult for water to enter the case 40 from the opening 46.
  • the lower end portion of the side portion 442 s is located below the lower edge of the opening 46, so that water droplets can be reliably guided onto the step surface 421. it can.
  • the water that has flowed on the stepped surface 421 is guided along the vertical groove 48 to the lower edge of the side wall 42b.
  • the water that has flowed to the upper part 442u of the protrusion 442 flows down to the horizontal groove 442d. Accordingly, it is possible to prevent water from entering the end surface of the opening 46 from the end surface of the upper portion 442u of the protruding portion 442 and entering the case 40 from the opening 46.
  • the water droplets that have flowed down to the lateral groove portion 442d flow to the side portion 442s side of the protruding portion 442, and flow downward through the side portion 442s. Can be led to the lower edge of the side wall portion 42b.
  • the substrate unit 1 since the substrate unit 1 has a structure for guiding water to the lower edge of the side wall portion 42b of the case 40 in the case 40, the substrate unit 1 can be placed in the case with a simple structure without providing a separate seal member. Infiltration of water can be suppressed. Therefore, when ensuring the waterproofness (drip-proof) of water droplets, the number of components can be reduced and the assembly workability can be improved by using the substrate unit 1.
  • the board unit described above can be suitably used for a large current power control unit such as a DC voltage converter, an AC / DC converter, a DC / AC inverter, etc. mounted on a vehicle such as an automobile.
  • a large current power control unit such as a DC voltage converter, an AC / DC converter, a DC / AC inverter, etc. mounted on a vehicle such as an automobile.
  • the present invention is not limited to these exemplifications, is shown by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
  • the specifications (size, shape, number, etc.) of the longitudinal grooves and the lateral grooves, the specifications (size, shape, etc.) of the case can be changed.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
PCT/JP2017/020334 2016-06-02 2017-05-31 基板ユニット Ceased WO2017209203A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780033068.1A CN109196965B (zh) 2016-06-02 2017-05-31 基板单元
US16/305,933 US10582632B2 (en) 2016-06-02 2017-05-31 Board unit
DE112017002785.3T DE112017002785B4 (de) 2016-06-02 2017-05-31 Platineneinheit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-111348 2016-06-02
JP2016111348A JP6611010B2 (ja) 2016-06-02 2016-06-02 基板ユニット

Publications (1)

Publication Number Publication Date
WO2017209203A1 true WO2017209203A1 (ja) 2017-12-07

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PCT/JP2017/020334 Ceased WO2017209203A1 (ja) 2016-06-02 2017-05-31 基板ユニット

Country Status (5)

Country Link
US (1) US10582632B2 (enExample)
JP (1) JP6611010B2 (enExample)
CN (1) CN109196965B (enExample)
DE (1) DE112017002785B4 (enExample)
WO (1) WO2017209203A1 (enExample)

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JP7056456B2 (ja) * 2018-08-08 2022-04-19 トヨタ自動車株式会社 電気機器
KR102334269B1 (ko) * 2019-12-24 2021-12-02 서승구 자율주행 차량용 피씨비 보호케이스
US20240224441A1 (en) * 2021-07-20 2024-07-04 Hitachi Astemo, Ltd. Electronic Control Device
WO2024047834A1 (ja) * 2022-09-01 2024-03-07 日立Astemo株式会社 電子制御装置

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CN109196965B (zh) 2020-08-11
JP6611010B2 (ja) 2019-11-27
US10582632B2 (en) 2020-03-03
JP2017220470A (ja) 2017-12-14

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