JP7157740B2 - Electronic control device and method for manufacturing electronic control device - Google Patents

Electronic control device and method for manufacturing electronic control device Download PDF

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Publication number
JP7157740B2
JP7157740B2 JP2019529000A JP2019529000A JP7157740B2 JP 7157740 B2 JP7157740 B2 JP 7157740B2 JP 2019529000 A JP2019529000 A JP 2019529000A JP 2019529000 A JP2019529000 A JP 2019529000A JP 7157740 B2 JP7157740 B2 JP 7157740B2
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Prior art keywords
control board
casing
fixing
housing
electronic
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JPWO2019012898A1 (en
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裕二朗 金子
義夫 河合
良育 根岸
尭之 福沢
匠大 江崎
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Hitachi Astemo Ltd
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Hitachi Astemo Ltd
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    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
    • B29C66/5414—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being rigid, e.g. a plate
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
    • 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/30321—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 protrusions 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/304—Joining through openings in an intermediate part of the article
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • 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
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • 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
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B29C65/608—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking the integral rivets being pushed in blind holes
    • 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
    • B29C66/71—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 composition of the plastics material 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
    • B29C66/70—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
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Connection Or Junction Boxes (AREA)

Description

本発明は、電子制御装置および電子制御装置の製造方法に関する。 The present invention relates to an electronic control device and a method of manufacturing an electronic control device.

車両には、車室内やエンジンルーム内等に、エンジンコントロールユニットまたは自動変速機コントロールユニット等の電子制御装置が搭載されている。これら電子制御装置は、例えば、制御基板と、制御基板に実装されたコネクタと、制御基板を収容する筐体と、筐体内の気密性確保するシール部材等から構成されている。 A vehicle is equipped with an electronic control unit such as an engine control unit or an automatic transmission control unit in a vehicle interior, an engine room, or the like. These electronic control devices are composed of, for example, a control board, a connector mounted on the control board, a housing for accommodating the control board, and a seal member for ensuring airtightness in the housing.

電子制御装置は、高振動や高熱といった過酷な環境に置かれることが多い。このため、電子制御装置の信頼性を長期間にわたって維持するためには、電子部品を実装した制御基板への負荷をできるだけ抑制する必要がある。そのために、制御基板の固定方法が重要となる。特許文献１では、回路基板の外周の四隅を金属製ベースにネジで留めるようになっている。 Electronic control units are often placed in harsh environments such as high vibration and high heat. Therefore, in order to maintain the reliability of the electronic control device for a long period of time, it is necessary to suppress the load on the control board on which the electronic components are mounted as much as possible. Therefore, the method of fixing the control board is important. In Patent Document 1, the four corners of the outer periphery of the circuit board are screwed to the metal base.

特開２０１６－１０３３８２号公報JP 2016-103382 A

制御基板を４本のネジで筐体に締結することにより、制御基板を強固に固定することができる。しかし、制御基板を筐体へネジ留めするためには、ネジの生産または加工、雌ねじのタッピング加工等といった工程が発生し、コストが増加する。また、従来技術には金属屑の回路部への付着による回路ショートの懸念がある。金属筐体に雌ネジを形成する際に金属屑がネジ穴に残留し、製品を組み立てる際に、落下した金属屑が回路基板上の電子部品端子間に付着すると回路がショートしてしまうおそれがある。昨今、電子部品の端子間がますます狭ピッチ化しているため、回路ショートの可能性は高くなっている。競争力保持のためには電子制御装置の品質を向上しコストは抑制する必要があるため、ネジを用いずに制御基板を筐体へ固定する方法の開発が望まれている。 By fastening the control board to the housing with four screws, the control board can be firmly fixed. However, in order to screw the control board to the housing, processes such as production or processing of the screws, tapping of the internal threads, and the like are required, resulting in an increase in cost. Further, in the prior art, there is a concern of short circuit due to adhesion of metal scraps to the circuit portion. Metal chips remain in the screw holes when female screws are formed in the metal housing, and when the product is assembled, if the metal chips that fall and adhere to the terminals of the electronic components on the circuit board, there is a risk of a short circuit. be. In recent years, the pitch between the terminals of electronic components has become increasingly narrow, so the possibility of short circuits has increased. In order to maintain competitiveness, it is necessary to improve the quality of electronic control devices and reduce costs.

本発明は、上記課題に鑑みてなされたもので、その目的は、ケーシングや制御基板以外の特別な部材を用いずに制御基板をケーシングに固定することができるようにした電子制御装置および電子制御装置の製造方法を提供することにある。 SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic control device and an electronic control device capable of fixing a control board to a casing without using special members other than the casing and the control board. An object of the present invention is to provide a method for manufacturing an apparatus.

上記課題を解決すべく、本発明に従う電子制御装置は、ケーシング内に制御基板が設けられた電子制御装置であって、ケーシングには、制御基板の所定領域と密着することにより制御基板をケーシング内に固定する固定部が少なくとも一つ設けられている。 In order to solve the above problems, an electronic control device according to the present invention is an electronic control device in which a control board is provided in a casing, and the casing is brought into close contact with a predetermined region of the control board so that the control board is placed inside the casing. At least one fixing portion is provided for fixing to the

本発明によれば、ケーシングに設けた固定部が制御基板の所定領域に密着することにより、制御基板をケーシング内に固定することができる。 According to the present invention, the control board can be fixed in the casing by bringing the fixing portion provided in the casing into close contact with the predetermined region of the control board.

電子制御装置の外観斜視図である。1 is an external perspective view of an electronic control device; FIG. 電子制御装置の組立手順を示す説明図である。It is explanatory drawing which shows the assembly procedure of an electronic control unit. 電子制御装置の一つの変形例に係る部分断面図である。It is a fragmentary sectional view concerning one modification of an electronic control unit. 電子制御装置の他の一つの変形例に係る部分断面図である。FIG. 11 is a partial cross-sectional view according to another modification of the electronic control device; 電子制御装置のさらに別の変形例に係る部分断面図である。FIG. 11 is a partial cross-sectional view according to still another modification of the electronic control unit; 電子制御装置の他の変形例に係る部分断面図である。FIG. 11 is a partial cross-sectional view according to another modification of the electronic control unit; 第２実施例に係る電子制御装置の外観斜視図である。FIG. 11 is an external perspective view of an electronic control unit according to a second embodiment; 電子制御装置の組立手順を示す説明図である。It is explanatory drawing which shows the assembly procedure of an electronic control unit. 電子制御装置の一つの変形例に係る部分断面図である。It is a fragmentary sectional view concerning one modification of an electronic control unit. 第３実施例に係る電子制御装置の説明図である。FIG. 11 is an explanatory diagram of an electronic control unit according to a third embodiment; 第４実施例に係る電子制御装置の断面図である。FIG. 11 is a cross-sectional view of an electronic control unit according to a fourth embodiment;

以下、図面に基づいて、本発明の実施の形態を説明する。本実施形態では、例えば、自動車用に用いられるエンジンコントロールユニットや自動変速機コントロールユニットなどに用いられる電子制御装置の低コストと生産性、信頼性を両立させる。本実施形態では、ケーシングの一部を変形させることで制御基板の所定領域にケーシングの一部を密着させ、ケーシング内に制御基板を固定する。ケーシングは、単一の素材から一体形成してもよいし、同一または異なる素材から形成される複数の部材を組み合わせることで形成してもよい。 BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below based on the drawings. In this embodiment, for example, low cost, productivity, and reliability of an electronic control device used in an engine control unit or an automatic transmission control unit used in automobiles are compatible. In this embodiment, a portion of the casing is deformed to bring the casing into close contact with a predetermined region of the control board, thereby fixing the control board in the casing. The casing may be integrally formed from a single material, or may be formed by combining a plurality of members formed from the same or different materials.

図１～図６を用いて実施例を説明する。図１は、電子制御装置１の外観を示す。図２は、電子制御装置１の構成と組立て手順を示す。 An embodiment will be described with reference to FIGS. 1 to 6. FIG. FIG. 1 shows the appearance of an electronic control unit 1. As shown in FIG. FIG. 2 shows the configuration and assembly procedure of the electronic control unit 1. As shown in FIG.

本実施例の電子制御装置１は、ケーシング２と、ケーシング２内に設けられる制御基板アッセンブリ３（図２参照）と、を備える。ケーシング２は、取り付けベースとなる第１筐体４と、第１筐体４を覆うようにして取り付けられる第２筐体５とから、開口部を有する有底筒状に形成される。第１筐体４の四隅には、図示せぬ車両へ固定するための車両固定部４１がそれぞれ設けられている。 The electronic control device 1 of this embodiment includes a casing 2 and a control board assembly 3 (see FIG. 2) provided inside the casing 2 . The casing 2 is formed into a bottomed cylindrical shape having an opening by a first housing 4 serving as an attachment base and a second housing 5 attached so as to cover the first housing 4 . Vehicle fixing portions 41 for fixing to a vehicle (not shown) are provided at the four corners of the first housing 4 .

制御基板アッセンブリ３は、その一端側に複数のコネクタ７が設けられている。制御基板アッセンブリ３をケーシング２に組み付けると、各コネクタ７が図示せぬシール部材等を介してケーシング２の開口部を液密にシールする。 A plurality of connectors 7 are provided at one end of the control board assembly 3 . When the control board assembly 3 is assembled to the casing 2, each connector 7 liquid-tightly seals the opening of the casing 2 via a sealing member or the like (not shown).

図２（ａ）に示すように、制御基板６は、例えば、ガラスエポキシ樹脂等をベースとしたプリント配線基板６１と、プリント配線基板６１に実装された電子部品６２とを含んで構成される。プリント配線基板６１に電子部品６２を接続する際は、例えば、Ｓｎ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕ－Ｂｉはんだ等の鉛フリーはんだを用いる。電子部品６２としては、例えば、マイクロプロセッサ、メモリ、その他集積回路、コンデンサ、抵抗等がある。電子部品６２は、プリント配線基板６１の片面または両面に実装することができる。 As shown in FIG. 2A, the control board 6 includes, for example, a printed wiring board 61 made of glass epoxy resin or the like, and electronic components 62 mounted on the printed wiring board 61 . When connecting the electronic component 62 to the printed wiring board 61, for example, lead-free solder such as Sn--Cu solder, Sn--Ag--Cu solder, or Sn--Ag--Cu--Bi solder is used. Electronic components 62 include, for example, microprocessors, memories, other integrated circuits, capacitors, resistors, and the like. The electronic components 62 can be mounted on one side or both sides of the printed wiring board 61 .

図２（ｂ）は、コネクタ７を示す。コネクタ７は、制御基板６を車両内の他の電子回路（図示せず）に接続するためのものである。コネクタ７は、制御基板６と車両側ハーネス（不図示）とを接続するためのコネクタ端子７２と、端子７２を規定のピッチに整列させ、かつ保持するためのコネクタハウジング７１とを備える。 FIG. 2(b) shows the connector 7. FIG. The connector 7 is for connecting the control board 6 to other electronic circuits (not shown) in the vehicle. The connector 7 includes connector terminals 72 for connecting the control board 6 and a vehicle-side harness (not shown), and a connector housing 71 for aligning and holding the terminals 72 at a prescribed pitch.

コネクタ端子７２の材料は、導電性、小型化、コストの観点から銅、または銅合金であるのが好ましい。コネクタハウジング７１の材料には、例えば、ＰＢＴ（Ｐｏｌｙｂｕｔｙｌｅｎｅ Ｔｅｒｅｐｈｔｈａｌａｔｅ）、ＰＡ（Ｐｏｌｙａｍｉｄｅ）６６、ＰＰＳ（Ｐｏｌｙｐｈｅｎｙｌｅｎｅ Ｓｕｌｆｉｄｅ）等の、軽量で耐熱性に優れる樹脂を用いるのが好ましい。 The material of the connector terminal 72 is preferably copper or a copper alloy from the viewpoints of conductivity, miniaturization, and cost. As the material of the connector housing 71, it is preferable to use resins such as PBT (Polybutylene Terephthalate), PA (Polyamide) 66, PPS (Polyphenylene Sulfide), etc., which are lightweight and excellent in heat resistance.

図２（ｃ）に示すように、コネクタ端子７２と制御基板６とは、コネクタ端子７２が挿入された制御基板６のスルーホール部６３を、Ｓｎ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕ－Ｂｉはんだ等の鉛フリーはんだを用いて接続する。これにより、コネクタ７が制御基板６に取り付けられて、制御基板アッセンブリ３が製造される。なお、コネクタ７のタイプは、面実装タイプまたはプレスフィットタイプのいずれであってもよい。 As shown in FIG. 2(c), the connector terminals 72 and the control board 6 are connected by connecting the through-holes 63 of the control board 6 into which the connector terminals 72 are inserted by Sn—Cu solder, Sn—Ag—Cu solder, Sn - Connect using lead-free solder such as Ag-Cu-Bi solder. Thereby, the connector 7 is attached to the control board 6, and the control board assembly 3 is manufactured. The type of the connector 7 may be either surface mount type or press fit type.

図２（ｄ）に示すように、ベース部材となる第１筐体４は、周縁部に段差部４０が形成された有底の角筒状に形成されている。 As shown in FIG. 2(d), the first housing 4, which serves as a base member, is formed in the shape of a square tube with a bottom having a stepped portion 40 formed on the peripheral portion thereof.

図２（ｅ）に示すように、プリント配線基板６１の周縁が第１筐体４の段差部４０に載るようにして、第１筐体４の上に制御基板アッセンブリ３を搭載する。 As shown in FIG. 2( e ), the control board assembly 3 is mounted on the first housing 4 so that the periphery of the printed wiring board 61 rests on the stepped portion 40 of the first housing 4 .

図２（ｆ）に示すように、第１筐体４との間で制御基板アッセンブリ３を挟み込むようにして、制御基板アッセンブリ３の上側に第２筐体５を載置する。第１筐体４の上に第２筐体５を載置することにより、図２中の左側に開口部を有する有底角筒状のケーシング２が形成される。 As shown in FIG. 2( f ), the second housing 5 is placed above the control board assembly 3 so as to sandwich the control board assembly 3 with the first housing 4 . By placing the second housing 5 on the first housing 4, the bottomed rectangular tubular casing 2 having an opening on the left side in FIG. 2 is formed.

カバー部材となる第２筐体５には、その他端側（図２中右側）に位置して段部５１が一体的に形成されている。段部５１は、制御基板アッセンブリ３をケーシング２内に固定する「固定部」の例である。段部５１は、制御基板６の所定領域に密着できるように、第２筐体５の他端側に形成されている。以下の説明では、段部５１を固定部５１と呼ぶこともできる。 A stepped portion 51 is integrally formed on the second housing 5, which serves as a cover member, at the other end (right side in FIG. 2). The step portion 51 is an example of a “fixing portion” that fixes the control board assembly 3 inside the casing 2 . The stepped portion 51 is formed on the other end side of the second housing 5 so as to be in close contact with a predetermined area of the control board 6 . In the following description, the stepped portion 51 can also be called the fixed portion 51 .

なお、後述のように、固定部となる段部５１の形成箇所は、ケーシング２の他端側に限らない。ケーシング２の左右両側、ケーシング２の一端側の開口部を除く、ケーシング２の左右両側および他端側などに形成してもよい。ここで、ケーシング２の左右両側とは、開口部と開口部に対向する面とを結ぶ法線に平行な側を意味する。 As will be described later, the location where the stepped portion 51 serving as the fixing portion is formed is not limited to the other end side of the casing 2 . It may be formed on both the left and right sides of the casing 2, on both the left and right sides of the casing 2 and on the other end side of the casing 2 except for the opening on the one end side of the casing 2. Here, the left and right sides of the casing 2 mean the sides parallel to the normal line connecting the opening and the surface facing the opening.

第２筐体５の材料には、例えば、ＢＴ（ＰｏｌｙＢｕｔｙｌｅｎｅ Ｔｅｒｅｐｈｔｈａｌａｔｅ）、ＰＡ（ＰｏｌｙＡｍｉｄｅ）６６、ＰＰＳ（ＰｏｌｙＰｈｅｎｙｌｅｎｅ Ｓｕｌｆｉｄｅ）等の軽量で耐熱性に優れる樹脂を用いるとよい。第１筐体４の材料は、第２筐体５と同材料、または放熱性の観点から、アルミニウム、アルミニウム合金、鉄、または鉄合金のいずれかであるとよい。 For the material of the second housing 5, it is preferable to use resins such as BT (Polybutylene Terephthalate), PA (PolyAmide) 66, and PPS (PolyPhenylene Sulfide) which are lightweight and excellent in heat resistance. The material of the first housing 4 is preferably the same as that of the second housing 5, or aluminum, an aluminum alloy, iron, or an iron alloy from the viewpoint of heat dissipation.

ケーシング２内には、制御基板アッセンブリ３を収容する基板収容空間２１が形成されている。制御基板アッセンブリ３のコネクタ７は、ケーシング２の開口部を施蓋するようにしてケーシング２に取り付けられる。コネクタ７とケーシング２の開口部の周囲との間には、図示せぬシール部材により液密にシールされる。 A substrate housing space 21 for housing the control substrate assembly 3 is formed in the casing 2 . The connector 7 of the control board assembly 3 is attached to the casing 2 so as to cover the opening of the casing 2 . The space between the connector 7 and the periphery of the opening of the casing 2 is liquid-tightly sealed by a sealing member (not shown).

図２（ｆ）の状態では、制御基板アッセンブリ３の一端側（図２中左側）はケーシング２に固定されているが、制御基板アッセンブリ３の他端側（図２中右側）は第１筐体４の段差部４０に載っているだけで固定されていない。そこで、加熱ジグ８を段部５１に押し当てて、段部５１を形成する樹脂を軟化、流動させる。 In the state of FIG. 2(f), one end side (left side in FIG. 2) of the control board assembly 3 is fixed to the casing 2, but the other end side (right side in FIG. 2) of the control board assembly 3 is fixed to the first housing. It is only placed on the stepped portion 40 of the body 4 and is not fixed. Therefore, the heating jig 8 is pressed against the stepped portion 51 to soften and flow the resin forming the stepped portion 51 .

図２（ｇ）に示すように、加熱ジグ８は、樹脂を軟化させながらプリント配線基板６１の他端側に押し当てる。加熱ジグ８をケーシング２から引き離すと、軟化した段部５１がプリント配線基板６１の他端側に密着した状態で固まる。これにより段部５１は、ケーシング２内で制御基板６を固定する。 As shown in FIG. 2G, the heating jig 8 is pressed against the other end side of the printed wiring board 61 while softening the resin. When the heating jig 8 is pulled away from the casing 2 , the softened step portion 51 hardens while being in close contact with the other end side of the printed wiring board 61 . Thereby, the step portion 51 fixes the control board 6 within the casing 2 .

さらに、制御基板６の表面に、段部５１との密着性を向上させるための接着層を設けてもよい。さらに段部５１と第１筐体４との密着性を向上させるため、予め第１筐体４の表面を粗化処理したり表面処理したりして、接着層ＡＬ（図３参照）を設けてもよい。 Furthermore, an adhesive layer may be provided on the surface of the control board 6 to improve adhesion with the stepped portion 51 . Furthermore, in order to improve the adhesion between the step portion 51 and the first housing 4, the surface of the first housing 4 is roughened or surface-treated in advance to provide an adhesive layer AL (see FIG. 3). may

図３は、変形例に係る電子制御装置の一部を拡大して示す断面図である。図３（ａ）に示すように、この変形例では、プリント配線基板６１の所定領域（制御基板６の所定領域）に、貫通孔６４が形成されている。 FIG. 3 is a cross-sectional view showing an enlarged part of an electronic control unit according to a modification. As shown in FIG. 3A, in this modification, a through hole 64 is formed in a predetermined area of the printed wiring board 61 (a predetermined area of the control board 6).

プリント配線基板６１の他端（図３中の右端）から内側に第１所定距離Ｌ１だけ離間した範囲が、段部５１を加熱することでケーシング２と密着する所定領域である。この所定領域からさらに第２所定距離Ｌ２以上内側に離間した領域が、電子部品６２を実装可能な実装可能領域である。加熱加工時に、加熱ジグ８の熱がプリント配線基板６１を介して電子部品６２へ伝わり、電子部品６２に影響を与えないように、高温になりえる領域から距離Ｌ２以上離れた領域に電子部品６２を配置する。以上述べた所定領域および実装可能な実装可能領域についての説明は、図１，２で述べた第１実施例にも適用される。 A range spaced inwardly from the other end (right end in FIG. 3) of the printed wiring board 61 by a first predetermined distance L1 is a predetermined area where the stepped portion 51 is heated and is brought into close contact with the casing 2 . An area spaced further inward from this predetermined area by a second predetermined distance L2 or more is a mountable area where the electronic component 62 can be mounted. In order to prevent the heat of the heating jig 8 from being transmitted to the electronic component 62 through the printed wiring board 61 during the heating process and affecting the electronic component 62, the electronic component 62 is placed in a region at least a distance L2 away from the region where the temperature may be high. to place. The above description of the predetermined area and mountable area is also applicable to the first embodiment described with reference to FIGS.

ケーシング２の組立時に第２筐体５と第１筐体４とが接触する領域には、上述の通り、接着層ＡＬを設けてもよい。さらに、接着層ＡＬの熱伝導率を適切な値に設定することにより、加熱加工時に、加熱ジグ８の熱が第１筐体４側に逃げるのを抑制して、加熱加工時間を短縮することもできる。 As described above, the adhesive layer AL may be provided in the region where the second housing 5 and the first housing 4 are in contact when the casing 2 is assembled. Furthermore, by setting the thermal conductivity of the adhesive layer AL to an appropriate value, the heat of the heating jig 8 is suppressed from escaping to the first housing 4 side during the heating process, thereby shortening the heating process time. can also

図３（ｂ）に示すように、段部５１へ加熱ジグ８を押し当て、加熱しながら段部５１を第１筐体４へ向けて押し付けていく。段部５１を形成する樹脂は軟化し、流動しながら変形し、制御基板６の所定領域に密着する。 As shown in FIG. 3B, the heating jig 8 is pressed against the stepped portion 51, and the stepped portion 51 is pressed toward the first housing 4 while being heated. The resin forming the step portion 51 softens, deforms while flowing, and adheres to a predetermined area of the control board 6 .

図３（ｃ）に示すように、段部５１の樹脂の一部が貫通孔６４内へ流入する。貫通孔６４の一部または全部は、流入した樹脂５２で充填される。これにより、制御基板６と第２筐体５との密着する面積が増加するため、ネジ固定に比べて基板に印加する応力が小さくても、より一層強固に制御基板６をケーシング２内に固定することができる。 As shown in FIG. 3C, part of the resin of the stepped portion 51 flows into the through hole 64 . Part or all of the through-hole 64 is filled with the resin 52 that has flowed therein. As a result, the contact area between the control board 6 and the second housing 5 increases, so that the control board 6 is more firmly fixed in the casing 2 even if the stress applied to the board is smaller than in fixing with screws. can do.

図４は、他の変形例に係る電子制御装置の部分断面図である。図４（ａ）に示すように、この変形例では、制御基板６の所定領域に貫通孔６４を形成すると共に、第１筐体４にも貫通孔６４に対応する位置に凹部４２を形成する。 FIG. 4 is a partial cross-sectional view of an electronic control unit according to another modification. As shown in FIG. 4A, in this modification, a through hole 64 is formed in a predetermined region of the control board 6, and a concave portion 42 is also formed in the first housing 4 at a position corresponding to the through hole 64. .

図４（ｂ）に示すように、加熱ジグ８を段部５１へ押し当て、加熱しながら段部５１を第１筐体４へ向けて押し付けていく。これにより、加熱で軟化した樹脂が貫通孔６４へ流入し、さらに貫通孔６４を介して凹部４２へ流入する。 As shown in FIG. 4B, the heating jig 8 is pressed against the stepped portion 51, and the stepped portion 51 is pressed toward the first housing 4 while being heated. As a result, the resin softened by heating flows into the through hole 64 and further flows into the concave portion 42 via the through hole 64 .

図４（ｃ）に示すように、貫通孔６４および凹部４２に第２筐体５の樹脂５２が流入して充填されることで、第２筐体５と制御基板６および第１筐体４の密着する面積がさらに増加する。これにより、制御基板６をさらに強固にケーシング２内に固定できる。 As shown in FIG. 4(c), the resin 52 of the second housing 5 flows into the through hole 64 and the recess 42 to fill the second housing 5, the control board 6, and the first housing 4. As shown in FIG. The contact area of is further increased. Thereby, the control board 6 can be fixed in the casing 2 more firmly.

なお、凹部４２の内面に、雌ネジのように溝を切ってもよい。凹部４２の内面側にネジ溝を形成することにより、第１筐体４と樹脂５２との密着力が向上する。この結果、環境温度の変化や、振動等により発生する応力に対して、樹脂が剥がれ難くなり、密着の信頼性が向上する。 The inner surface of the recess 42 may be grooved like a female thread. Forming a screw groove on the inner surface side of the recess 42 improves the adhesion between the first housing 4 and the resin 52 . As a result, the resin is less likely to peel off due to stress generated by changes in environmental temperature, vibration, etc., and the reliability of adhesion is improved.

図５は、さらに別の変形例を示す電子制御装置の部分断面図である。図５（ａ）に示すように、この変形例では、制御基板６の貫通孔６４に対応する位置で、第１筐体４に凸部４３を設ける。 FIG. 5 is a partial cross-sectional view of an electronic control unit showing still another modification. As shown in FIG. 5( a ), in this modified example, a protrusion 43 is provided on the first housing 4 at a position corresponding to the through hole 64 of the control board 6 .

図５（ｂ）に示すように、制御基板６の貫通孔６４に凸部４３が係合するようにして、第１筐体４上に制御基板６を取り付ける。凸部４３が貫通孔６４に嵌合することで、制御基板６は第１筐体４上に位置決めされる。そして、第２筐体５の段部５１に加熱ジグ８を押し当てて、樹脂を変形させる。 As shown in FIG. 5B, the control board 6 is mounted on the first housing 4 so that the protrusions 43 are engaged with the through holes 64 of the control board 6 . The control board 6 is positioned on the first housing 4 by fitting the protrusion 43 into the through hole 64 . Then, the heating jig 8 is pressed against the stepped portion 51 of the second housing 5 to deform the resin.

図５（ｃ）に示すように、加熱ジグ８で加熱されることにより、段部５１の一部の樹脂５２が貫通孔６４に流入して固化する。段部５１の一部の樹脂５２と凸部４３とは、貫通孔６４内で対面する。 As shown in FIG. 5C, by being heated by the heating jig 8, a part of the resin 52 of the step portion 51 flows into the through hole 64 and solidifies. Part of the resin 52 of the stepped portion 51 and the convex portion 43 face each other inside the through hole 64 .

図５の変形例によれば、第１筐体４に設けた凸部４３を制御基板６の貫通孔６４に嵌合させることで、制御基板６をケーシング２内で位置決めすることができる。さらに、凸部４３は、貫通孔６４および段部５１の樹脂５２と相俟って、制御基板６をケーシング２内に固定する。したがって、ケーシング２内に制御基板６を位置決めする機能と固定する機能とを兼用した構成を得ることができる。このため、位置決めのみに用いる構成を省略することができ、その分だけ制御基板６の小型化を図ることができる。 According to the modification of FIG. 5, the control board 6 can be positioned within the casing 2 by fitting the protrusion 43 provided on the first housing 4 into the through hole 64 of the control board 6 . Further, the convex portion 43 fixes the control board 6 inside the casing 2 together with the through hole 64 and the resin 52 of the stepped portion 51 . Therefore, it is possible to obtain a structure having both the function of positioning the control board 6 in the casing 2 and the function of fixing it. Therefore, the configuration used only for positioning can be omitted, and the size of the control board 6 can be reduced accordingly.

図６は、さらに他の変形例を示す電子制御装置の部分断面図である。図６では、固定部としての段部の形状と加熱ジグの形状を説明する。 FIG. 6 is a partial cross-sectional view of an electronic control unit showing still another modification. FIG. 6 illustrates the shape of the step portion as the fixing portion and the shape of the heating jig.

図６（ａ）に示すように、第２筐体５の側壁が直線である場合、もしも第２筐体５の上面に加熱ジグ８ａをあて、樹脂を軟化、流動させようとすると、制御基板６までの距離が長いため、樹脂流動により第２筐体５の肉厚が減少し、剛性が低下してしまう。一方、第２筐体５の側面に加熱ジグ８ｂをあて、樹脂を軟化、流動させる場合、制御基板６までの距離が短いため、カバーとなる部分の肉厚が減少することによる剛性低下を抑制できるが、制御基板６の側面しか樹脂で覆うことができないため、制御基板６の固定力が低下するおそれがある。 As shown in FIG. 6A, when the side wall of the second housing 5 is straight, if a heating jig 8a is applied to the upper surface of the second housing 5 to soften and flow the resin, the control board Since the distance to 6 is long, the thickness of the second housing 5 is reduced due to resin flow, and the rigidity is lowered. On the other hand, when the heating jig 8b is applied to the side surface of the second housing 5 to soften and flow the resin, since the distance to the control board 6 is short, the reduction in rigidity due to the reduction in the thickness of the cover portion is suppressed. However, since only the side surfaces of the control board 6 can be covered with the resin, the fixing force of the control board 6 may decrease.

そこで、図６（ｂ），（ｃ）に示すように、第２筐体５には、制御基板６の所定領域に対応する位置に段部５１，５１ａを設けるとよい。 Therefore, as shown in FIGS. 6B and 6C, the second housing 5 is preferably provided with stepped portions 51 and 51a at positions corresponding to predetermined regions of the control board 6. FIG.

図６（ｂ）では、先端がＬ字状の加熱ジグ８ｃで段部５１を加熱しながら押圧するようになっている。図６（ｃ）では、段部５１ａに傾斜をつけており、加熱ジグ８ｄで斜め上側から押圧するようになっている。 In FIG. 6(b), a heating jig 8c having an L-shaped tip is used to heat and press the stepped portion 51. In FIG. In FIG. 6(c), the stepped portion 51a is inclined so that the heating jig 8d presses diagonally from above.

このように、第２筐体５に段部５１，５１ａを形成することで、加熱ジグで加熱される樹脂の流動距離を最短化でき、カバーとなる部分の肉厚が減少することによる剛性低下を抑制できる。さらに、制御基板６の上面および側面を樹脂で覆って固定することができ、制御基板６の固定信頼性を向上できる。 Thus, by forming the stepped portions 51 and 51a in the second housing 5, the flow distance of the resin heated by the heating jig can be minimized, and the thickness of the portion to be the cover is reduced, resulting in a decrease in rigidity. can be suppressed. Furthermore, the upper surface and side surfaces of the control board 6 can be covered with resin and fixed, so that the reliability of fixing the control board 6 can be improved.

第２筐体５を第１筐体４に固着する方法としては、例えば、熱かしめ、振動溶着、超音波溶着、レーザ溶着等を用いことができる。 As a method for fixing the second housing 5 to the first housing 4, for example, heat caulking, vibration welding, ultrasonic welding, laser welding, or the like can be used.

電子制御装置１の搭載場所によっては、防水性を必要とする場合がある。防水性が必要な場合、第１筐体４と第２筐体５との間、第１筐体４とコネクタ７との間、コネクタ７と第２筐体５との間にそれぞれ接着性を有するシール材を塗布するとよい。シール材の硬化タイプは、熱硬化または湿度硬化どちらでもよい。これにより、電子制御装置１の内部への異物や水等の浸入を防ぐことができる。 Depending on the mounting location of the electronic control unit 1, waterproofness may be required. When waterproofness is required, adhesiveness is applied between the first housing 4 and the second housing 5, between the first housing 4 and the connector 7, and between the connector 7 and the second housing 5. It is preferable to apply a sealing material having the The cure type of the sealant can be either heat cure or humidity cure. As a result, entry of foreign matter, water, etc. into the electronic control unit 1 can be prevented.

このように構成される本実施例によれば、固定部としての段部５１を制御基板６の所定領域へ密着させることにより、ネジなどの特別な部材を用いずに、ケーシング２内に制御基板６を固定することができる。 According to this embodiment configured as described above, the stepped portion 51 as the fixing portion is brought into close contact with a predetermined region of the control board 6, so that the control board can be installed in the casing 2 without using a special member such as a screw. 6 can be fixed.

本実施例によれば、コネクタ７はケーシング２の開口部を液密に施蓋して設けられるため、コネクタ７を介して外部装置と制御基板６とを電気的に接続することができる。 According to this embodiment, since the connector 7 is provided by liquid-tightly covering the opening of the casing 2 , the external device and the control board 6 can be electrically connected via the connector 7 .

本実施例によれば、制御基板６の他端（プリント配線基板６１の他端）から第１所定距離Ｌ１だけ内側に離れた領域を、ケーシング２に固定する所定領域として設定する。距離Ｌ１は、制御基板６をケーシング２内に固定するために必要な最小限の長さに設定することができる。これにより、制御基板６を小型化できる。 According to this embodiment, the predetermined area to be fixed to the casing 2 is set to the area spaced inward from the other end of the control board 6 (the other end of the printed wiring board 61) by the first predetermined distance L1. The distance L1 can be set to the minimum length required to fix the control board 6 inside the casing 2 . Thereby, the control board 6 can be miniaturized.

本実施例によれば、所定領域からさらに第２所定距離Ｌ２以上内側に離間した領域を、電子部品６２を実装可能な領域として設定する。これにより、制御基板６をケーシング２内に固定する際の熱が電子部品６２に影響を与えるのを抑制できる。 According to this embodiment, an area spaced inward from the predetermined area by the second predetermined distance L2 or more is set as an area where the electronic component 62 can be mounted. Thereby, it is possible to suppress the influence of heat on the electronic components 62 when the control board 6 is fixed inside the casing 2 .

本実施例によれば、制御基板６の所定領域には貫通孔６４を設け、ケーシング２の樹脂（詳しくは第２筐体５の樹脂の一部）で貫通孔６４を埋めることにより、制御基板６をケーシング２内に固定する。これにより、ケーシング２と制御基板６とが密着する面積を増加することができ、密着の信頼性を向上することができる。 According to this embodiment, a through hole 64 is provided in a predetermined area of the control board 6, and the through hole 64 is filled with the resin of the casing 2 (specifically, a part of the resin of the second housing 5). 6 is fixed in the casing 2; As a result, the area where the casing 2 and the control board 6 are in close contact can be increased, and the reliability of the close contact can be improved.

図７～図９を用いて第２実施例を説明する。本実施例を含む以下の各実施例では、第１実施例との相違を中心に説明する。 A second embodiment will be described with reference to FIGS. 7 to 9. FIG. In each of the following embodiments, including the present embodiment, differences from the first embodiment will be mainly described.

図７は、電子制御装置１ａの外観斜視図である。図８は、電子制御装置１ａの構成と組立て手順を示す。 FIG. 7 is an external perspective view of the electronic control unit 1a. FIG. 8 shows the configuration and assembly procedure of the electronic control unit 1a.

本実施例の電子制御装置１ａも第１実施例で述べた電子制御装置１と同様に、ケーシング２ａと、ケーシング２ａ内に設けられる制御基板アッセンブリ３と、を備える。ケーシング２ａの下側には、複数の車両固定部２２が設けられている。 The electronic control unit 1a of this embodiment also includes a casing 2a and a control board assembly 3 provided in the casing 2a, like the electronic control unit 1 described in the first embodiment. A plurality of vehicle fixing portions 22 are provided on the lower side of the casing 2a.

ここで、本実施例に係るケーシング２ａは、第１実施例で述べたケーシング２と異なり、複数の筐体に分割されておらず、例えば射出成形技術を用いることにより、開口部を有する有底角筒状に一体的に形成されている。 Here, unlike the casing 2 described in the first embodiment, the casing 2a according to the present embodiment is not divided into a plurality of housings. It is integrally formed into a rectangular tubular shape.

図８を参照する。制御基板６では、プリント配線基板６１の実装領域にマイクロコンピュータ等の電子部品６２を実装している。プリント配線基板６１には、例えば、ガラスエポキシ樹脂等をベースとしたプリント配線基板を用いる。そのプリント配線基板６１に制御基板６に電子部品６２を接続する際は、Ｓｎ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕ－Ｂｉはんだ等の鉛フリーはんだを用いる。 Please refer to FIG. In the control board 6 , an electronic component 62 such as a microcomputer is mounted in a mounting area of the printed wiring board 61 . For the printed wiring board 61, for example, a printed wiring board based on glass epoxy resin or the like is used. When connecting the electronic component 62 to the printed circuit board 61 and the control board 6, lead-free solder such as Sn--Cu solder, Sn--Ag--Cu solder, or Sn--Ag--Cu--Bi solder is used.

図８（ｂ）に示すコネクタ７を、図８（ｃ）に示すように制御基板６へ実装する。これにより、制御基板アッセンブリ３が生成する。コネクタ７は、制御基板６と図示せぬ車両側ハーネスとを接続するためのコネクタ端子７２と、端子７２を規定のピッチに整列させ、かつ保持するためのコネクタハウジング７１ａとからなる。コネクタ端子７２の材料は、導電性、小型化、コストの観点から銅、または銅合金であるとよい。コネクタハウジング７１ａには、図８中の上側に突出する上側施蓋部７１１と、図８中の下側に突出する下側施蓋部７１２とが一体的に設けられている。これら各施蓋部７１１，７１２により、制御基板アッセンブリ３をケーシング２ａに組み付けて固定した際に、ケーシング２ａの開口部が施蓋されるようになっている。 The connector 7 shown in FIG. 8(b) is mounted on the control board 6 as shown in FIG. 8(c). Thereby, the control board assembly 3 is produced. The connector 7 comprises connector terminals 72 for connecting the control board 6 and a vehicle-side harness (not shown), and a connector housing 71a for aligning and holding the terminals 72 at a prescribed pitch. The material of the connector terminal 72 is preferably copper or a copper alloy from the viewpoints of conductivity, miniaturization, and cost. The connector housing 71a is integrally provided with an upper lid portion 711 projecting upward in FIG. 8 and a lower lid portion 712 projecting downward in FIG. These lids 711 and 712 cover the opening of the casing 2a when the control board assembly 3 is assembled and fixed to the casing 2a.

コネクタハウジング７１ａの材料には、ＰＢＴ、ＰＡ６６、ＰＰＳ等の軽量で耐熱性に優れる樹脂を用いるとよい。プリント配線基板６１に電子部品６２を接続する際は、例えば、Ｓｎ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕはんだ、Ｓｎ－Ａｇ－Ｃｕ－Ｂｉはんだ等の鉛フリーはんだを用いる。なお、コネクタ７ａのタイプは、面実装タイプ、またはプレスフィットタイプのいずれであってもよい。 As the material of the connector housing 71a, it is preferable to use resin such as PBT, PA66, PPS, etc., which is lightweight and excellent in heat resistance. When connecting the electronic component 62 to the printed wiring board 61, for example, lead-free solder such as Sn--Cu solder, Sn--Ag--Cu solder, or Sn--Ag--Cu--Bi solder is used. The type of the connector 7a may be either a surface mount type or a press fit type.

図８（ｄ）に示すように、ケーシング２ａは、ＰＢＴ、ＰＡ６６、ＰＰＳ等の軽量で耐熱性に優れる樹脂から射出成形技術などで一体形成されている。ケーシング２ａ内には、基板収容空間２１が形成されていると共に、開口部に対向する面には制御基板６の他端側が挿入される基板取付部２４が設けられている。そして、基板取付部２４に対応する位置でケーシング２ａの表面には固定部としての段部２３が一体的に形成されている。 As shown in FIG. 8(d), the casing 2a is integrally formed from resin such as PBT, PA66, PPS, etc., which is lightweight and excellent in heat resistance, by an injection molding technique or the like. A substrate housing space 21 is formed in the casing 2a, and a substrate mounting portion 24 into which the other end side of the control substrate 6 is inserted is provided on the surface facing the opening. A step portion 23 as a fixing portion is integrally formed on the surface of the casing 2a at a position corresponding to the board mounting portion 24. As shown in FIG.

図８（ｅ）に示すように、制御基板６の他端側がケーシング２ａの内面に当接して停止するまで、制御基板６を基板取付部２４に挿入することにより、ケーシング２ａ内に制御基板アッセンブリ３を取り付ける。 As shown in FIG. 8(e), the control board assembly is inserted into the casing 2a by inserting the control board 6 into the board mounting portion 24 until the other end side of the control board 6 comes into contact with the inner surface of the casing 2a and stops. Install 3.

そして、図８（ｅ）に示すように、加熱ジグ８をケーシング２ａの段部２３に押し当てることで、ケーシング２ａを構成する樹脂の一部を軟化させて流動させ、軟化した樹脂を制御基板６の他端側に押し当てて密着させる。 Then, as shown in FIG. 8(e), by pressing the heating jig 8 against the stepped portion 23 of the casing 2a, part of the resin forming the casing 2a is softened and made to flow, and the softened resin is applied to the control substrate. It is pressed against the other end side of 6 and adhered.

図８（ｆ）に示すように、ケーシング２ａの段部２３は、基板取付部２４に挿入された制御基板６の他端側を上側から覆うようにして密着する。これにより、制御基板６の他端側は、基板取付部２４内で固定される。制御基板６の一端側はコネクタ７ａを介してケーシング２ａの開口部に固定される。この結果、制御基板６は、その両端部がケーシング２ａ内に固定される。なお、制御基板６の固定をより強固にするため、制御基板６の側面も樹脂で覆うとよい。また、制御基板６の表面に、樹脂との密着を向上させる接着層を設けてもよい。 As shown in FIG. 8(f), the stepped portion 23 of the casing 2a is in close contact with the other end side of the control board 6 inserted into the board mounting portion 24 so as to cover the other end side thereof from above. Thereby, the other end side of the control board 6 is fixed within the board mounting portion 24 . One end of the control board 6 is fixed to the opening of the casing 2a via a connector 7a. As a result, both ends of the control board 6 are fixed inside the casing 2a. In order to fix the control board 6 more firmly, it is preferable to cover the side surfaces of the control board 6 with resin. Further, an adhesive layer may be provided on the surface of the control board 6 to improve adhesion with the resin.

図９は、第２実施例の変形例に係る電子制御装置１ａの部分断面図である。図９（ａ）に示すように、制御基板６が貫通孔６４を有してもよい。図９（ｂ）に示すように、ケーシング２ａの段部２３に加熱ジグ８を押し当てることで、図９（ｃ）に示すように、ケーシング２ａの樹脂の一部を軟化させて、貫通孔６４内の一部、または全部に樹脂を充填してもよい。これにより、制御基板６と樹脂との密着面積が増加し、より強固に制御基板６を固定することができる。この結果、環境温度変化や、振動等により発生する応力に対して、樹脂が剥がれ難くなり、密着信頼性が向上する。また、金属筐体の場合は、雌ネジを形成する際に金属屑がネジ穴に残留し、製品を組み立てる際に、落下した金属屑が回路基板上の電子部品端子間に付着すると回路がショートする可能性があるが、本実施例では非導電性である樹脂を用いて固定するため、回路がショートする懸念がなく、高品質な電子制御装置を提供できる。 FIG. 9 is a partial cross-sectional view of an electronic control unit 1a according to a modification of the second embodiment. As shown in FIG. 9A, the control board 6 may have through holes 64 . As shown in FIG. 9B, by pressing the heating jig 8 against the stepped portion 23 of the casing 2a, as shown in FIG. Part or all of the inside 64 may be filled with resin. As a result, the contact area between the control board 6 and the resin increases, and the control board 6 can be fixed more firmly. As a result, the resin is less likely to peel off due to stress caused by environmental temperature changes, vibrations, and the like, and adhesion reliability is improved. In the case of a metal case, metal chips remain in the screw holes when the internal threads are formed, and when the product is assembled, if metal chips that fall and adhere to the terminals of the electronic components on the circuit board, the circuit will short-circuit. However, in this embodiment, since non-conductive resin is used for fixing, there is no fear of short circuits, and a high-quality electronic control device can be provided.

図１０を用いて第３実施例を説明する。本実施例では、制御基板６をケーシング２ａ内に固定する領域９の設定例を説明する。図１０では、第２実施例に適用する場合を例に挙げて説明するが、第１実施例の場合にも適用できる。 A third embodiment will be described with reference to FIG. In this embodiment, a setting example of the area 9 for fixing the control board 6 inside the casing 2a will be described. In FIG. 10, the case of applying to the second embodiment will be described as an example, but it can also be applied to the case of the first embodiment.

図１０（ａ）に示すように、ケーシング２ａの開口部を除く周縁（開口部に対向する側と、ケーシング２ａの左右両側）に固定領域９を設定してもよい。即ち、制御基板６の四辺のうち、ケーシング２ａの開口部に対応する辺以外の三辺を固定するように固定領域９を設定してもよい。固定領域９には、固定部としての段部２３を設ける。 As shown in FIG. 10(a), a fixed region 9 may be set on the periphery of the casing 2a excluding the opening (the side facing the opening and the left and right sides of the casing 2a). That is, the fixing area 9 may be set so as to fix three sides of the four sides of the control board 6 other than the side corresponding to the opening of the casing 2a. The fixing region 9 is provided with a step portion 23 as a fixing portion.

それら三辺に対応するケーシング２ａの表面を外側から加熱ジグで加熱することにより、制御基板６をケーシング２ａ内に強固に固定することができる。なお、ケーシング２ａの開口部では、制御基板６に設けられたコネクタ７ａがシール部材（図示せず）を介して取り付けられるため、結局、制御基板６は、その四辺がケーシング２ａに固定されることになる。 By heating the surfaces of the casing 2a corresponding to these three sides from the outside with a heating jig, the control board 6 can be firmly fixed inside the casing 2a. In addition, since the connector 7a provided on the control board 6 is attached to the opening of the casing 2a via a sealing member (not shown), the control board 6 must be fixed to the casing 2a on its four sides. become.

図１０（ｂ）に示すように、制御基板６の左右両側に固定領域９を設定してもよいし、あるいは、図１０（ｃ）に示すように、部分的、断続的に複数の固定領域９を必要な数だけ設定してもよい。制御基板６の左右両側とは、図１０の例では、制御基板６をコネクタ７側から見て（正面から見て）左右両側という意味である。 As shown in FIG. 10(b), fixed areas 9 may be set on both the left and right sides of the control board 6, or as shown in FIG. 10(c), a plurality of fixed areas may be partially or intermittently You may set 9 as many as required. In the example of FIG. 10, the left and right sides of the control board 6 mean the left and right sides of the control board 6 when viewed from the connector 7 side (viewed from the front).

このように構成される本実施例も第１，第２実施例と同様の作用効果を奏する。さらに、本実施例では、電子制御装置１ａの使用状況や目的等に合わせて、ケーシング２ａに制御基板６を固定する領域９を適宜設定することができ、設計の自由度が向上する。 The present embodiment configured in this manner also exhibits the same effects as those of the first and second embodiments. Furthermore, in this embodiment, the region 9 where the control board 6 is fixed to the casing 2a can be appropriately set according to the usage conditions and purpose of the electronic control device 1a, thereby improving the degree of freedom in design.

図１１を用いて第４実施例を説明する。本実施例では、一体形成されたケーシング２ｂの略中央部に「他の固定部」としての段部２６を設けている。 A fourth embodiment will be described with reference to FIG. In this embodiment, a stepped portion 26 is provided as "another fixed portion" in the substantially central portion of the integrally formed casing 2b.

ケーシング２ｂは、第２実施例で述べたケーシング２ａと同様に、開口部を有する有底の角筒状に一体形成されている。ケーシング２ｂの図１１中の上側の略中央部には、段部２６が形成されている。 Like the casing 2a described in the second embodiment, the casing 2b is integrally formed in the shape of a bottomed rectangular tube having an opening. A stepped portion 26 is formed in the substantially central portion of the upper side of the casing 2b in FIG.

すなわち、本実施例のケーシング２ｂでは、制御基板６の他端側に設定された所定領域に対応して設けられる段部２３に加えて、制御基板６の略中央部に設定された他の所定領域に対応する他の段部２６が設けられている。 That is, in the casing 2b of this embodiment, in addition to the stepped portion 23 provided corresponding to the predetermined area set on the other end side of the control board 6, another predetermined Another step 26 corresponding to the area is provided.

ここでは、説明の便宜上、制御基板６の略中央部に「他の所定領域」を設定する場合を説明するが、これに限らない。他の所定領域は、制御基板６の周縁部の内側に位置する場所のいずれかに少なくとも一つ設定することができる。 Here, for convenience of explanation, the case where the "other predetermined area" is set in the substantially central portion of the control board 6 will be explained, but the present invention is not limited to this. At least one other predetermined area can be set anywhere inside the peripheral edge of the control board 6 .

ケーシング２ｂの下側には、段部２６に対向して位置し、段部２６との間で制御基板６の略中央部を挟持するための支持部２７が設けられている。支持部２７は、ケーシング２ｂ内に形成してもよいし、制御基板６の下面に形成してもよい。 A supporting portion 27 is provided on the lower side of the casing 2b so as to face the stepped portion 26 and sandwich the substantially central portion of the control board 6 between itself and the stepped portion 26. As shown in FIG. The support portion 27 may be formed inside the casing 2 b or may be formed on the lower surface of the control board 6 .

段部２６に加熱ジグ８ｅを発熱させながら押し付けることにより、ケーシング２ｂの上部略中央付近の樹脂を軟化させて制御基板６の略中央部に密着させることができ、支持部２７と段部２６とにより制御基板６をケーシング２ｂ内で固定することができる。これにより、制御基板６は、その他端側に密着する段部２３と、その略中央部に密着する段部２６および支持部２７とによりケーシング２ｂ内に固定されると共に、制御基板６の一端側はコネクタ７ａおよびシール部材を介してケーシング２ｂに固定される。 By pressing the heating jig 8e against the stepped portion 26 while generating heat, the resin in the vicinity of the upper approximate center of the casing 2b can be softened and brought into close contact with the approximately central portion of the control board 6. , the control board 6 can be fixed within the casing 2b. As a result, the control board 6 is fixed in the casing 2b by the stepped portion 23 that is in close contact with the other end side, and the stepped portion 26 and the support portion 27 that are in close contact with the substantially central portion of the stepped portion 23. is fixed to the casing 2b via the connector 7a and the sealing member.

なお、制御基板６では、加熱工程時に加熱ジグ８ｅにより略中央部の温度が上昇するため、電子部品６２が温度上昇の影響を受けないように、段部２６が制御基板６に密着する位置から他の第２所定距離Ｌ３以上離間した領域を、電子部品６２の実装可能領域として設定してもよい。したがって、図１１の場合、例えば、制御基板６の他側では、段部２６の密着する位置から距離Ｌ３以上離れており、かつ、制御基板６の他端側の所定領域からも距離Ｌ２以上離れた領域に、電子部品６２を搭載してもよい。電子部品６２を実装可能な領域の設定方法は一つの好ましい例であり、本実施例は上述の実装領域設定方法に限定されない。制御基板６の周縁以外の領域（例えば略中央部）において、ネジなどを用いずに制御基板６をケーシング２ｂに固定する構成を備える電子制御装置は、本実施例の開示範囲に含まれる。 In the control board 6, since the temperature of the substantially central portion of the control board 6 rises due to the heating jig 8e during the heating process, the electronic components 62 are not affected by the temperature rise. A region separated by another second predetermined distance L3 or more may be set as the mountable region of the electronic component 62 . Therefore, in the case of FIG. 11, for example, the other side of the control board 6 is separated from the contact position of the stepped portion 26 by the distance L3 or more, and is also separated from the predetermined region on the other end side of the control board 6 by the distance L2 or more. An electronic component 62 may be mounted in the area with the ridge. The method of setting the area where the electronic component 62 can be mounted is one preferred example, and the present embodiment is not limited to the mounting area setting method described above. An electronic control device having a configuration in which the control board 6 is fixed to the casing 2b without using screws in a region other than the peripheral edge of the control board 6 (for example, a substantially central portion) is included in the scope of disclosure of this embodiment.

このように構成される本実施例も第１，第２実施例と同様の作用効果を奏する。さらに本実施例では、制御基板６の周縁部以外の領域においてもケーシング２ｂに固定することができるため、信頼性をより一層向上することができる。本実施例は第１実施例に適用することもできし、第３実施例と組み合わせることもできる。 The present embodiment configured in this manner also exhibits the same effects as those of the first and second embodiments. Furthermore, in this embodiment, since the control board 6 can be fixed to the casing 2b in a region other than the peripheral edge portion, the reliability can be further improved. This embodiment can be applied to the first embodiment or can be combined with the third embodiment.

以上、本発明に係る電子制御装置の実施形態について詳述したが、本発明は、前記各実施例に限定されるものではなく、特許請求の範囲に記載された本発明の精神を逸脱しない範囲で、種々の設計変更を行うことができるものである。 The embodiments of the electronic control unit according to the present invention have been described in detail above, but the present invention is not limited to the above embodiments, and is within the spirit of the invention described in the claims. , and various design changes can be made.

前記各実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることもできる。また、ある実施例の構成に他の実施例の構成を加えることもできる。また、各実施例の構成の一部について、他の構成を追加したり削除したり置換したりしてもよい。 Each of the above-described embodiments has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the configurations described. Also, part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Moreover, the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, other configurations may be added, deleted, or replaced with respect to a part of the configuration of each embodiment.

また、上述した各実施例に含まれる技術的特徴は、特許請求の範囲に明示された組み合わせに限らず、適宜組み合わせることができる。 Moreover, the technical features included in each of the embodiments described above can be combined as appropriate without being limited to the combinations specified in the claims.

１，１ａ，１ｂ：電子制御装置、２，２ａ，２ｂ：ケーシング、３：制御基板アッセンブリ、４：第１筐体、５：第２筐体、６：制御基板、７，７ａ：コネクタ、８．８ａ，８ｂ，８ｃ，８ｄ，８ｅ：加熱ジグ、９：固定領域、２３，２６，５１：段部 1, 1a, 1b: electronic control device, 2, 2a, 2b: casing, 3: control board assembly, 4: first housing, 5: second housing, 6: control board, 7, 7a: connector, 8 8a, 8b, 8c, 8d, 8e: heating jig, 9: fixed area, 23, 26, 51: stepped portion

Claims (7)

ケーシング内に制御基板が設けられた電子制御装置であって、
前記ケーシングは、熱可塑性樹脂から形成されており、
前記ケーシングには、前記制御基板の所定領域と密着することにより前記制御基板を前記ケーシング内に固定する固定部が少なくとも一つと、前記制御基板の周辺部以外の他の所定領域と密着することにより前記制御基板を前記ケーシング内に固定する他の固定部とが設けられており、
前記固定部は、熱変形することで前記制御基板の前記所定領域を包み込むように流動して当該制御基板の所定領域と密着した状態で固化することにより、前記制御基板を前記ケーシング内に固定し、
前記他の固定部は、熱変形することで前記制御基板の前記他の所定領域を包み込むように流動して当該制御基板の他の所定領域と密着した状態で固化することにより、前記制御基板を前記ケーシング内に固定した、電子制御装置。 An electronic control device provided with a control board in a casing,
The casing is made of a thermoplastic resin,
The casing has at least one fixing portion for fixing the control board in the casing by being in close contact with a predetermined area of the control board, and in close contact with another predetermined area other than the peripheral portion of the control board. and another fixing portion for fixing the control board in the casing by
The fixing portion is thermally deformed to flow so as to wrap the predetermined region of the control board and solidify in a state of being in close contact with the predetermined region of the control board, thereby fixing the control board in the casing. ,
The other fixing portion is thermally deformed to flow so as to wrap the other predetermined region of the control board and solidify in a state of being in close contact with the other predetermined region of the control board, thereby fixing the control board. An electronic controller fixed within the casing . 前記ケーシングは、一端側が開口部となる有底筒状に形成されており、前記一端側に対向する他端側に前記固定部が設けられており、
前記制御基板は、一端側に前記開口部に嵌着されるコネクタ部が設けられており、前記一端側に対向する他端側が前記固定部に密着して固定される、請求項１に記載の電子制御装置。 The casing is formed in a bottomed cylindrical shape with an opening on one end side, and the fixing portion is provided on the other end side opposite to the one end side,
2. The control board according to claim 1, wherein a connector portion is provided on one end side of the control board to be fitted into the opening portion, and the other end side facing the one end side is tightly fixed to the fixing portion. electronic controller. 前記所定領域は、前記制御基板の他端部から第１所定距離だけ内側に離間した領域として設定されており、
前記制御基板には、前記所定領域以外の実装可能領域に電子部品が実装される、請求項２に記載の電子制御装置。 The predetermined area is set as an area spaced inward from the other end of the control board by a first predetermined distance,
3. The electronic control device according to claim 2, wherein an electronic component is mounted in a mountable area other than the predetermined area on the control board. 前記実装可能領域の端部は、前記所定領域から第２所定距離以上内側に離間した領域として設定されている、請求項３に記載の電子制御装置。 4. The electronic control device according to claim 3, wherein an end portion of said mountable area is set as an area spaced inward from said predetermined area by a second predetermined distance or more. 前記所定領域には、前記制御基板を貫通する貫通孔が設けられており、前記固定部は前記貫通孔の少なくとも一部を埋めるようにして形成される、請求項４に記載の電子制御装置。 5. The electronic control device according to claim 4, wherein a through hole penetrating through said control board is provided in said predetermined area, and said fixing portion is formed so as to fill at least part of said through hole. 前記ケーシングは、車体に取り付けられる第１筐体と、前記第１筐体の一方の面を覆うようにして設けられる第２筐体とを備え、
前記第１筐体に前記第２筐体を設けることにより、前記ケーシングは一端側が開口部となる有底筒状に形成される、請求項２に記載の電子制御装置。 The casing includes a first housing attached to the vehicle body and a second housing provided so as to cover one surface of the first housing,
3. The electronic control device according to claim 2, wherein said casing is formed into a bottomed cylindrical shape having an opening at one end thereof by providing said second casing in said first casing. 電子制御装置の製造方法であって、
制御基板の所定領域と密着することにより制御基板を内部に固定する少なくとも一つの固定部と、前記制御基板の周辺部以外の他の所定領域と密着することにより前記制御基板を内部に固定する他の固定部とが設けられたケーシングであって、熱可塑性樹脂から一体形成された前記ケーシングを用意する工程と、
前記制御基板の所定領域が前記固定部に、前記制御基板の他の所定領域が前記他の固定部にそれぞれ対応するようにして、前記制御基板を前記ケーシング内に取り付ける工程と、
前記ケーシングの外側から前記固定部を加熱し、前記固定部を熱変形させて前記制御基板の前記所定領域を包み込むようにして密着させることにより、前記制御基板を前記ケーシング内に固定すると共に、前記ケーシングの外側から前記他の固定部を加熱し、前記他の固定部を熱変形させて前記制御基板の前記他の所定領域を包み込むようにして密着させることにより、前記制御基板を前記ケーシング内に固定する工程と、を実行する電子制御装置の製造方法。 A method for manufacturing an electronic control device,
At least one fixing part for fixing the control board inside by coming into close contact with a predetermined area of the control board, and fixing the control board inside by coming into close contact with another specified area other than the peripheral part of the control board. A step of preparing a casing provided with a fixing portion of and integrally formed from a thermoplastic resin;
a step of mounting the control board in the casing such that a predetermined region of the control board corresponds to the fixed portion and another predetermined region of the control board corresponds to the other fixed portion;
The control board is fixed in the casing by heating the fixing part from the outside of the casing, thermally deforming the fixing part, and bringing the control board into close contact so as to enclose the predetermined region of the control board. By heating the other fixing portion from the outside of the casing and thermally deforming the other fixing portion so as to wrap the other predetermined region of the control board and bring it into close contact, the control board is inserted into the casing. A method of manufacturing an electronic control device that performs the step of fixing.
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