WO2018235960A1 - Dispositif de commande électronique - Google Patents

Dispositif de commande électronique Download PDF

Info

Publication number
WO2018235960A1
WO2018235960A1 PCT/JP2018/023900 JP2018023900W WO2018235960A1 WO 2018235960 A1 WO2018235960 A1 WO 2018235960A1 JP 2018023900 W JP2018023900 W JP 2018023900W WO 2018235960 A1 WO2018235960 A1 WO 2018235960A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
electronic control
control unit
control device
pitch
Prior art date
Application number
PCT/JP2018/023900
Other languages
English (en)
Japanese (ja)
Inventor
昌幸 岡村
聡 荒井
勝 鴨志田
大内　四郎
Original Assignee
日立オートモティブシステムズ株式会社
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 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Publication of WO2018235960A1 publication Critical patent/WO2018235960A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02245—Abrading, e.g. grinding, sanding, sandblasting or scraping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0246—Cutting or perforating, e.g. burning away by using a laser or using hot air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7422—Aluminium or alloys of aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements

Definitions

  • the present invention relates to an electronic control device including a substrate on which various electronic components are mounted.
  • JP-A-2016-132131 (patent document 1).
  • a different kind of airtightness is formed by forming a joint having a plurality of groove portions substantially parallel to each other at the time of laser scanning processing at the interface between the dissimilar material and the metal material when joined to a dissimilar material.
  • the area ratio is A dissimilar metal-bonded metal material having a relationship of A + B + C) / (W ⁇ H) ⁇ 1.00.
  • Patent Document 1 there is a case where a joint having a plurality of grooves which are substantially parallel to each other is formed at the time of laser scanning processing at the interface between the dissimilar material and the metal material when joining dissimilar materials.
  • a salt water resistance test such as a salt spray test.
  • the present invention provides an electronic control device capable of preventing peeling of the bonding interface between the metal and the resin even in the salt water resistance test.
  • the present invention is a substrate on which an electronic component is mounted, and a container for storing the substrate, and a storage portion opened as a recess for storing the substrate in a part thereof.
  • An annular welding portion is formed on the side as a convex portion surrounding the periphery of the substrate accommodated in the accommodation portion and in contact with the accommodation portion, and at least the outer circumferential side of the annular welding portions is provided with a plurality of annular
  • the annular welding portion is welded to the housing portion by laser light emitted from the outside of the metal body.
  • peeling of the bonding interface between the metal and the resin can be prevented even in the salt water resistance test.
  • FIG. 1 is a perspective view showing an entire configuration of an electronic control unit according to a first embodiment of the present invention. It is an exploded perspective view of an electronic control unit concerning Example 1 of the present invention. It is a figure of an electronic control unit concerning Example 1 of the present invention, and (A) is a bottom view of an electronic control unit, (B) is an important section expanded cross section in the XX line direction of (A).
  • FIG. It is a figure for demonstrating the structure of a comparative example, Comprising: (A), (B) is a principal part expanded sectional view of a comparative example. It is a principal part expanded sectional view of the electronic control unit concerning Example 2 of the present invention.
  • FIG. 1 is a perspective view showing an entire configuration of an electronic control unit according to a first embodiment of the present invention.
  • the electronic control unit is used, for example, as an automobile engine control unit (ECU), and a substantially flat metal base 1 and a substantially cubic resin cover 2 are joined by an adhesive, welding or welding. It is shaped like a box.
  • the metal base 1 is made of, for example, aluminum, and a plurality of radiation fins 1 a are formed on the surface of the metal base 1.
  • FIG. 2 is an exploded perspective view of the electronic control unit according to the first embodiment of the present invention.
  • a flat substrate 3 is disposed between the metal base 1 and the resin cover 2.
  • the substrate 3 is fixed to the bottom side of the metal base 1 by a bolt or the like.
  • the resin cover 2 is a container for storing the substrate 3 and is configured as a resin body having a storage portion 2a opened as a recess (space portion) for storing the substrate 3 in a part (central portion) thereof.
  • An annular support portion 2 b for supporting the metal base 1 is formed on the peripheral edge of the housing portion 2 a of the resin cover 2.
  • the metal base 1 covers the housing portion 2a of the resin cover 2 and is configured as a metal body supported by the support portion 2b around the housing portion 2a.
  • a circuit pattern (not shown) is formed on the substrate 3 housed in the housing portion 2a, and electronic components 3a such as a CPU (Central Processing Unit), a resistor, and a capacitor are mounted. That is, an engine control unit (ECU) is configured by the various electronic components 3 a mounted on the substrate 3.
  • the metal base 1 and the resin cover 2 are used to protect the substrate 3.
  • the substrate 3 and the electronic component 3a may suffer from a load due to heat. In particular, when moisture intrudes into the inside of the resin cover 2, the substrate 3 gets wet and the electronic component 3a does not operate normally. Therefore, the reliability of bonding of the metal base 1 and the resin cover 2 becomes important.
  • FIG. 3 is a diagram of the electronic control unit according to the first embodiment of the present invention, wherein (A) is a bottom view of the electronic control device, and (B) is in the XX direction of (A). It is a principal part expanded sectional view.
  • an annular step portion 1 b is formed on the outer peripheral side of the upper portion of the metal base 1.
  • An annular welding portion 1c is formed in contact with the storage portion 2a as a convex portion protruding to surround the periphery of the substrate 3 stored in the storage portion.
  • a plurality of annular concavo-convex portions 1 d are formed on the outer peripheral side of the bottom surface of the welded portion 1 c (the surface facing the housing portion 2 a of the resin cover 2).
  • Each concave portion of the uneven portions 1d is formed as a groove 1e, and the depth of each groove 1e is about 0.1 mm, and the width (pitch) between each groove (each concave portion) is 0.1 mm.
  • the grooves 1e on the outermost side among the grooves 1e are formed on the end face on the bottom side of the metal base 1 so as to be exposed as notches.
  • a groove 1e serving as a notch is formed in a region facing the peripheral edge (support portion 2b) of the storage portion 2a.
  • Each groove 1 e can be formed, for example, by laser processing that emits a laser beam 4.
  • each uneven portion 1 d is formed as a roughened portion roughened by the laser light 4.
  • annular uneven parts 1d is also formed by 0.1 mm.
  • the metal base 1 to which the substrate 3 is fixed is stored in the storage portion 2a of the resin cover 2, the metal base 1 is supported by the support portion 2b of the resin cover 2 in the step portion 1b.
  • the bottom surface is in contact with the surface of the storage portion 2 a of the resin cover 2.
  • the portion irradiated with the laser beam 4 is heated and a part of the resin cover 2 is melted.
  • the surfaces of the welded portion 1c and the storage portion 2a are joined (welded) to each other.
  • pressure is applied to the metal base 1 and the resin cover 2, and a part of the melted resin in the resin cover 2 becomes the protruding portion (burr) 5, and the supporting portion 2 b and the welded portion 1 c It is pushed out to the gap 6 between.
  • a salt spray test (a test in which salt water is sprayed from the outside of the electronic control unit and salt water is attached to the side of the metal base 1) was tested. There were no cracks in the bonding interface with the resin cover 2. Specifically, for the salt spray test, no leak occurred even at 40 cycles, or a crack did not occur at the bonding interface between the metal base 1 and the resin cover 2 or inside the resin cover 2. Further, even if salt water infiltrates from the gap 6, the metal base 1 makes the portion corroded by salt water as slow as possible, or the strength higher than the stress generation due to the corrosion of the metal base 1 makes the metal base 1 and the resin cover 2 Can be extended the life for salt spray.
  • the concavo-convex portion 1d including the plurality of grooves 1e in the region facing the gap 6 into which the salt water infiltrates in the metal base 1, the bonding strength of the outer peripheral side surface portion of the metal base 1 is strengthened. It becomes possible to prevent exfoliation due to corrosion of the base 1.
  • the outer peripheral side of the bottom surface of the welded portion 1c of the metal base 1 into a groove structure including a plurality of grooves 1e, it is possible to suppress such a stress that peels the resin from the resin cover 2; It is considered that the life for the spray test is extended.
  • FIG. 4 is a figure for demonstrating the structure of a comparative example, Comprising: (A), (B) is a principal part expanded sectional view of a comparative example.
  • the comparative example is a region facing the gap 6 at the bottom surface of the welded portion 1 c, and a constant distance from the outer peripheral end surface (side surface) of the welded portion 1 c of the metal base 1.
  • a flat portion 1g is formed between the outermost groove 1f and the side surface of the metal base 1.
  • the cause is that the peeling force is exerted on the bonding interface between the metal base 1 and the resin cover 2 due to the corrosion of the metal base 1, so that the stresses F1 and F2 due to the corrosion occur as shown in FIG. 4 (A). That is, when the flat portion 1g exists between the groove 1f and the side surface of the metal base 1, the corrosion portion spreads on the metal base 1, and the stress F1 in the horizontal direction and the stress F2 in the vertical direction are generated as the stress in two directions. Do. When the corrosion further progresses, the volume expansion due to the progress of the corrosion of the metal base 1 also progresses, and as shown in FIG. 4B, a part of the resin cover 2 is further extruded in the peeling direction, and finally the metal base It is considered that the bonding interface between 1 and the resin cover 2 peels off.
  • the bonding strength of the outer peripheral side surface of the metal base 1 is strengthened by providing the plurality of concavo-convex portions 1 d including the plurality of grooves 1 e in a region facing the gap 6 into which salt water infiltrates in the metal base 1.
  • the bonding strength of the outer peripheral side surface of the metal base 1 is strengthened by providing the plurality of concavo-convex portions 1 d including the plurality of grooves 1 e in a region facing the gap 6 into which salt water infiltrates in the metal base 1.
  • by making the outer peripheral side of the bottom surface of the welded portion 1c of the metal base 1 into a groove structure including a plurality of grooves 1e it is possible to suppress such a stress that peels the resin from the resin cover 2; Life can be extended. Therefore, it is resistant to general reliability tests (high temperature tests, thermal shock tests, etc.), and good reliability can be ensured even in salt spray tests.
  • the same effect can be obtained also by providing a surface with unevenness on the surface of the metal base 1 by sand blasting or shot blasting.
  • FIG. 5 is an enlarged sectional view of an essential part of an electronic control unit according to a second embodiment of the present invention.
  • a plurality of grooves 1e are formed on the entire bottom surface of the welded portion 1c from the outer peripheral side to the inner peripheral side, and the other configuration is the same as that of the first embodiment.
  • Each groove 1e is formed to have a groove depth of about 0.1 mm and a width (pitch) between the grooves of 0.1 mm.
  • the grooves 1e on the outermost side among the grooves 1e are formed on the end face on the bottom side of the metal base 1 so as to be exposed as notches.
  • the same effect as that of the first embodiment can be obtained, and since the concavo-convex structure is adopted for the entire welded portion, the joint strength of the entire welded portion is larger than that of the first embodiment. Life improves for salt spray tests.
  • FIG. 6 is an enlarged sectional view of an essential part of an electronic control unit according to a third embodiment of the present invention.
  • a plurality of grooves 1e and 1h having different pitches are formed in a plurality of groups all over the bottom surface of the welded portion 1c from the outer peripheral side to the inner peripheral side. Is the same as in the first embodiment.
  • Each groove 1e belonging to the first group is formed with a groove depth of about 0.1 mm and a width (pitch) between grooves of 0.1 mm, and each groove 1h belonging to the second group has a groove depth
  • the width (pitch) between the grooves is about 0.3 mm at about 0.1 mm.
  • the same effect as that of the first embodiment can be obtained, and the number of grooves can be reduced more than the second embodiment. Therefore, the reliability for the salt spray test is improved, and the grooves are formed. It becomes possible to shorten time. Further, by making the pitch of the outer grooves 1e denser (shorter) than the pitch of the grooves 1h, there is an effect of suppressing corrosion by salt water from the outside. Further, by making the pitch of the groove 1h closer to the inner side wider than the pitch of the groove 1e, the bonding strength of the metal-resin interface between the metal base 1 and the resin cover 2 becomes strong, and peeling at the metal-resin interface The crack inside the resin is eliminated and the life is further improved.
  • FIG. 7 is an enlarged sectional view of an essential part of an electronic control unit according to a fourth embodiment of the present invention.
  • an annular protrusion 1i is formed on the inner peripheral side of the groove 1e in the bottom surface of the welded portion 1c, and the protrusion 1i is coupled to the storage portion 2a of the resin cover 2 corresponding to the protrusion 1i.
  • the recess 2 c is formed, and the protrusion 1 i and the recess 2 c are coupled to each other.
  • the other configuration is the same as that of the first embodiment.
  • the same effect as that of the first embodiment can be obtained, and the bonding strength between the metal base 1 and the resin cover 2 is increased. Therefore, even when corrosion occurs, the bonding strength is higher than stress due to corrosion. Becomes hard to peel off. Further, by providing the projections 1i, the stress applied to the bonding portion (bonding interface) between the metal base 1 and the resin cover 2 can be further alleviated, so that the generation of the stress due to the corrosion becomes strong.
  • FIG. 8 is an enlarged sectional view of an essential part of an electronic control unit according to a fifth embodiment of the present invention.
  • a plurality of grooves 1j are formed substantially horizontally (in a direction perpendicular to the wall surface of the support 2b) on the outer peripheral side (the side facing the gap 6) of the weld 1c.
  • the configuration is the same as that of the first embodiment.
  • the same effect as that of the first embodiment can be obtained, and the bonding strength of metal and resin on the outer peripheral side surface of the welded portion 1c can be enhanced. In contrast, the life is improved.
  • FIG. 9 is an enlarged sectional view of an essential part of an electronic control unit according to a sixth embodiment of the present invention.
  • a plurality of grooves 1k are inclined in the direction (approximately 45 degrees with respect to the wall surface of the support portion 2b) instead of the plurality of grooves 1j on the outer peripheral side (the side facing the gap 6) of the welded portion 1c.
  • the other configuration is the same as that of the fifth embodiment.
  • burrs 5 are generated during laser welding, since the grooves 1k are formed in the inclined direction, the burrs 5 are more easily introduced into the grooves 1k than in the fifth embodiment.
  • the same effect as that of the first embodiment can be obtained, and the bonding strength of metal and resin on the outer peripheral side surface of the welded portion 1c can be enhanced. In contrast, the life is improved.
  • FIG. 10 is an enlarged sectional view of an essential part of an electronic control unit according to a seventh embodiment of the present invention.
  • the ratio of the height 13 from the welding surface (bottom surface) of the metal base 1 to the laser irradiation surface (upper surface of the metal base 1) and the depth 14 of the groove 1e is optimized.
  • the configuration is the same as that of the first embodiment.
  • the height 13 from the welding surface (bottom surface) of the metal base 1 to the laser irradiation surface (upper surface of the metal base 1) is 2.5 mm, and the depth 14 of the groove 1 e is 0.1 mm.
  • the ratio is 1:25.
  • the thinner the height 13 from the welding surface to the laser irradiation surface the easier the heat can be transmitted and the easier it is to conduct heat.
  • the metal base 1 it is possible to change the height 13 from the welding surface to the laser irradiation surface.
  • the resin flows and the resin penetrates into each groove 1e to increase the bonding strength, but if the depth 14 of the groove 1e is made too deep, processing becomes difficult , Also expensive.
  • the possibility of the resin entering into the groove 1e becoming insufficient becomes high, and thus it is expected that problems such as failure to join can occur.
  • the welding surface of the metal base 1 is used in order for the heat generated by the laser beam 4 to transmit the heat necessary to melt the resin cover 2 and to facilitate the processing of each groove 1e.
  • the ratio of the height 13 from (bottom surface) to the laser irradiation surface (upper surface of the metal base 1) and the depth 14 of each groove 1e is set to 1:25.
  • the height (the depth of the groove) when the surface shape is roughened by general sand blasting or shot blasting is about 0.002 mm to 0.02 mm.
  • the ratio of the groove depth to the height 13 from the welding surface (bottom surface) of the metal base 1 to the laser irradiation surface (upper surface of the metal base 1) is 1: 1250 to 1: 125. Since the salt spray resistance is improved by providing fine irregularities by blasting or the like on the surface of the metal base 1, the groove depth and welding of the metal base 1 are made to have a ratio of at least 1:25 or more. It is desirable to form a height 13 from the surface (bottom surface) to the laser irradiation surface (upper surface of the metal base 1).
  • the present invention is not limited to the embodiments described above, but includes various modifications.
  • the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.
  • part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
  • Reference Signs List 1 metal base, 1a heat radiation fin, 1b step portion, 1c welded portion, 1d uneven portion, 1e, 1f, 1h, groove, 1i protrusion, 1j, 1k groove, 2 resin cover, 2a storage portion, 2b support portion, 3 substrate , 3a electronic parts, 4 laser light, 5 protrusion (burr), 6 gaps, 13 laser irradiated surface height, 14 groove depth

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Casings For Electric Apparatus (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

La présente invention comprend : un substrat sur lequel une partie électronique est chargée ; un corps en résine, qui est un récipient pour stocker le substrat et dont une partie a une section de stockage qui est ouverte en tant qu'évidement pour stocker le substrat ; et un corps métallique qui recouvre la section de stockage du corps en résine et qui est supporté au niveau d'un bord entourant la section de stockage. Une section de soudage en forme d'anneau, qui vient en contact avec la section de stockage, est formée sur la périphérie de la surface du corps métallique qui fait face à la section de stockage en tant que section en saillie entourant le périmètre du substrat stocké dans la section de stockage. De multiples renfoncements et saillies en forme d'anneau sont formés au moins à la périphérie de la section de soudage en forme d'anneau, et la section de soudage en forme d'anneau est soudée à la section de stockage par une lumière laser irradiée depuis l'extérieur du corps métallique.
PCT/JP2018/023900 2017-06-23 2018-06-22 Dispositif de commande électronique WO2018235960A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017123767A JP6909649B2 (ja) 2017-06-23 2017-06-23 電子制御装置
JP2017-123767 2017-06-23

Publications (1)

Publication Number Publication Date
WO2018235960A1 true WO2018235960A1 (fr) 2018-12-27

Family

ID=64737698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/023900 WO2018235960A1 (fr) 2017-06-23 2018-06-22 Dispositif de commande électronique

Country Status (2)

Country Link
JP (1) JP6909649B2 (fr)
WO (1) WO2018235960A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
WO2013186926A1 (fr) * 2012-06-15 2013-12-19 日立オートモティブシステムズ株式会社 Capteurs de flux et procédé pour les fabriquer
JP2016046243A (ja) * 2014-08-22 2016-04-04 オムロン株式会社 照明装置、電子機器、フレーム構造、フレーム構造の製造方法
WO2016125595A1 (fr) * 2015-02-02 2016-08-11 オムロン株式会社 Procédé de production de structure liée et structure liée
WO2016133079A1 (fr) * 2015-02-19 2016-08-25 オムロン株式会社 Procédé de production d'une structure assemblée, et structure assemblée
JP2017094653A (ja) * 2015-11-27 2017-06-01 オムロン株式会社 接合構造体の製造方法および接合構造体
WO2017094353A1 (fr) * 2015-11-30 2017-06-08 日立オートモティブシステムズ株式会社 Dispositif de commande électronique et procédé de fabrication de dispositif de commande électronique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010274279A (ja) * 2009-05-27 2010-12-09 Nagoya Industrial Science Research Inst レーザを用いた部材の接合方法
WO2013186926A1 (fr) * 2012-06-15 2013-12-19 日立オートモティブシステムズ株式会社 Capteurs de flux et procédé pour les fabriquer
JP2016046243A (ja) * 2014-08-22 2016-04-04 オムロン株式会社 照明装置、電子機器、フレーム構造、フレーム構造の製造方法
WO2016125595A1 (fr) * 2015-02-02 2016-08-11 オムロン株式会社 Procédé de production de structure liée et structure liée
WO2016133079A1 (fr) * 2015-02-19 2016-08-25 オムロン株式会社 Procédé de production d'une structure assemblée, et structure assemblée
JP2017094653A (ja) * 2015-11-27 2017-06-01 オムロン株式会社 接合構造体の製造方法および接合構造体
WO2017094353A1 (fr) * 2015-11-30 2017-06-08 日立オートモティブシステムズ株式会社 Dispositif de commande électronique et procédé de fabrication de dispositif de commande électronique

Also Published As

Publication number Publication date
JP6909649B2 (ja) 2021-07-28
JP2019006011A (ja) 2019-01-17

Similar Documents

Publication Publication Date Title
JP5250599B2 (ja) 電池モジュール、及び二次電池の端子連結方法
JP5740036B1 (ja) 平面型ヒートパイプ
US10697712B2 (en) Vapor chamber
JP5143792B2 (ja) 半導体レーザ装置
WO2017169485A1 (fr) Dispositif à semi-conducteur
TWI672748B (zh) 半導體裝置及半導體裝置的製造方法
US10290842B2 (en) Producing method of sealed battery
JP6138500B2 (ja) パワー半導体装置
JP6545211B2 (ja) 点火プラグの製造方法
JP2012028743A (ja) 半導体装置用パッケージおよびその製造方法ならびに半導体装置
JP2009087736A (ja) 端子装置の製造方法
WO2018235960A1 (fr) Dispositif de commande électronique
CN107079597B (zh) 用于容纳电气和/或电子部件的壳体、电子控制装置及制造该壳体和电子控制装置的方法
JP4485995B2 (ja) パワー半導体モジュール
KR101268490B1 (ko) 밀봉 부재 및 그 제조 방법
JP6447266B2 (ja) 電流遮断装置の製造方法
JP6743439B2 (ja) 半導体装置および半導体装置の製造方法
JP6703558B2 (ja) 点火プラグ
JP2018534561A (ja) パッケージからの熱を放散するベースを備えた冷却エレメント
JP6349238B2 (ja) 半導体装置用ステム及び半導体装置
US10788064B2 (en) Composite structure
KR101762261B1 (ko) 보이드 방지 패턴을 갖는 led 패키지 및 그 제조방법
KR100716413B1 (ko) 열전재료를 이용한 전력케이블의 접합 방법
JP2020017628A (ja) 基板接続構造
KR100636537B1 (ko) Ｌｅｄ패키지에서 발광렌즈와 패키지 하우징의 결합구조

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: 18821569

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18821569

Country of ref document: EP

Kind code of ref document: A1