JP4708065B2 - Electronic control unit housing structure - Google Patents

Description

  The present invention relates to an electronic control unit housing structure.

  A vehicle such as an automobile has a large number of in-vehicle electrical components and an electronic control unit that controls the electrical components (hereinafter referred to as “electronic control unit” or abbreviated as “ECU”) dispersedly mounted in each part. ing. Each ECU is appropriately arranged in each part of the vehicle in a form in which an ECU board (in other words, an electronic control board), which is an electric circuit board on which the ECU is mounted, is individually housed in a housing box (for example, , See Patent Document 1).

  In recent years, as the number of ECUs tends to increase with the increase in added value of vehicles such as automobiles, the installation space of the ECU increases, and the wire harness for connecting each electrical component and the ECU and for connecting them The number of connectors has increased significantly. For this reason, the connector fitting and the wiring harness wiring are complicated, and the wiring space is also increased. As described above, the space required for installing the ECU continues to increase with the increasing value added of vehicles such as automobiles.

  On the other hand, it is strongly required to widen the vehicle interior space so that a comfortable vehicle interior space can be provided, and there is a conflict between securing the vehicle interior space and installing the ECU and the wiring harness. There is an urgent need to resolve the problem.

  Thus, there is known one in which a plurality of electric circuit boards are stored in a single storage box so as to reduce the installation space for the electric circuit boards (see, for example, Patent Document 2 and Patent Document 3). .

  The specifications of the ECU mounted on a vehicle such as an automobile need to be set in various specifications to meet the demands related to various functions. Usually, an ECU board provided separately for each function is combined with a predetermined Are arranged so as to meet the specifications of the vehicle. Therefore, the number of ECU boards to be mounted is combined with a different number of ECU boards for each vehicle specification.

  According to the ECU centralized storage box disclosed in Patent Document 2, a plurality of ECU boards are housed in a stacked state in the ECU box, and a bus bar is connected to a conductor end formed at one end of each ECU board. A bus bar constitutes a common circuit for each ECU board, and the common circuits for a plurality of ECU boards are connected together. Moreover, the direct attachment connector connected to the connector of a wire harness is being fixed to the other end of each ECU board | substrate, and this is wired by the electrical component of each part.

  Further, according to the connection structure of the ECU central storage box and the wire harness side connector disclosed in Patent Document 3, a plurality of ECU boards are stacked and mounted in the ECU central storage box, and the wire harness side connector is stored. The connected connector holder is coupled to the ECU central storage box, and the ECU board and the wire harness side connector are connected.

According to the techniques disclosed in Patent Document 2 and Patent Document 3, as disclosed in Patent Document 1, ECU boards are housed in individual housing boxes and arranged in a distributed manner, and each ECU board is connected by a wire harness. Compared with the technology, there is an effect that the installation space of the ECU board and the wiring space of the wire harness connecting the ECU boards are reduced.
JP-A-8-316650 JP 2003-304083 A (page 5-6, FIG. 1) Japanese Patent Laying-Open No. 2003-324824 (page 3-5, FIG. 1)

  However, both of the ECU central storage boxes disclosed in Patent Document 2 and Patent Document 3 are sized to accommodate the maximum number of ECU boards that satisfy all the assumed specifications. That is, it is not necessary to mount the maximum number of ECU boards depending on the specifications, and the remaining part of the ECU central storage box after the required number of ECU boards are accommodated becomes empty space, and valuable vehicle interior space is wasted. . In general, a vehicle such as an automobile is a high-grade specification vehicle (that is, a so-called high-grade vehicle) equipped with a large number of electrical components, or a medium-grade specification vehicle (ie, a so-called high-grade vehicle) equipped with a large number of electrical components. Mid-grade vehicles), and vehicles with a wide range of electrical components (ie, so-called low-grade vehicles). Therefore, if you do not prepare an ECU central storage box that can accommodate the maximum number of ECU boards required for high-grade vehicles, you can share parts with a view to reducing costs with mid-grade and low-grade vehicles. (Ie standardization) cannot be achieved. Therefore, there is room for improvement from the viewpoint of both space saving and sharing of parts. To eliminate wasted space, it is possible to prepare multiple types of ECU centralized storage boxes with different sizes for each specification and use them separately according to the specifications. It must be prepared and stocked, which can hinder the sharing of parts. In other words, since many types of molding dies are required, this causes an increase in cost.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to accommodate only the required quantity of electronic control units required for each specification in the minimum necessary space. An object of the present invention is to provide an electronic control unit housing structure that can achieve both space saving of a control unit installation space and sharing of parts.

In order to achieve the above-described object, an electronic control unit housing structure according to the present invention is characterized by the following (1) to (7).
(1) A base board having an electric circuit pattern, a first electronic control unit mounted on the base board to be electrically connected to the electric circuit pattern, and the electric circuit pattern to be electrically connected to the electric circuit pattern An electronic control board having at least one board connector fixable to the base board;
An under cover that covers the first surface side of the electronic control board, and a first upper cover that can be fitted to the under cover so as to cover the second surface side of the electronic control board located on the opposite side of the first surface An electronic control unit housing box for housing the electronic control board;
An electronic control unit housing structure comprising:
The board connector has an electrical contact portion at one end extending in a direction parallel to the surface of the base board on the second surface side of the electronic control board or away from the surface of the base board, and is in electrical contact with the electrical circuit pattern. A metal terminal having an electrical connection part at the other end, and a connector housing that houses the metal terminal so as to expose the electrical contact part and the electrical connection part,
The first upper cover is formed on the inner surface of the main body such that the main body, a receiving chamber formed in the main body and opening to the outer surface of the main body, and the receiving chamber formed in cooperation with the inner surface of the main body. And when the first upper cover is fitted to the under cover to accommodate the electronic control board in the electronic control unit housing box, the electrical contact portion of the metal terminal is positioned in the housing chamber. A partition wall having a through hole allowing entry of the board connector into the housing chamber,
In addition to the specifications that can be satisfied by the first electronic control unit of the electronic control board, if additional specifications occur, the second electronic control unit that satisfies the additional specifications and the second electronic control unit that are electrically An optional electronic control unit member having a connector portion that is electrically connected to the board connector can be inserted into the first upper cover accommodating chamber from its opening so as to electrically connect the connector portion to the electrical contact portion of the board connector. There is.
(2) In the electronic control unit housing structure configured as described in (1) above,
When the board connector and the optional electronic control unit member are not provided, a second upper cover for simply covering the second surface side of the electronic control board is fitted to the under cover instead of the first upper cover. To do.
(3) In the electronic control unit housing structure configured as described in (1) above,
The storage chamber is formed so as to extend substantially parallel to the electrical contact portion of the metal terminal.
(4) In the electronic control unit housing structure configured as described in (1) or (3) above,
The electronic control board has a junction block function for distributing and supplying electric power and transmitting and receiving electric signals to the optional electronic control unit member via the board connector.
(5) The electronic control unit housing structure configured as described in (4) above is provided.
An electrical component connector provided on the base board on the first surface side of the electronic control board so as to be electrically connected to the electrical circuit pattern;
The under cover has an opening that exposes the electrical component connection connector so as to allow connection between the mating connector of the wire harness that is electrically connected to the electrical component and the electrical component connection connector.
(6) The electronic control unit housing structure having the above configuration (1) or (3)
Junction block substrate that is electrically connected to the electronic control board and that distributes power and sends and receives electrical signals to the optional electronic control unit member via the electronic control board and a board connector of the electronic control board Further comprising
The junction block substrate is housed in the electronic control unit housing box so as to be disposed between the first surface of the electronic control substrate and the inner surface of the under cover.
(7) The electronic control unit housing structure configured as described in (6) above is provided.
Provided on the base board on the first surface side of the electronic control board so as to be electrically connected to the electric circuit pattern, electrically connected to the junction block board, and the electronic control board and the junction block It further comprises an electrical component connector interposed between the substrate and
The under cover has an opening that exposes the electrical component connection connector so as to allow connection between the mating connector of the wire harness that is electrically connected to the electrical component and the electrical component connection connector.

In the electronic control unit housing structure having the above configuration (1), assuming that the first electronic control unit of the electronic control board satisfies the minimum necessary specifications, in addition to the specifications that the first electronic control unit can satisfy. If additional specifications arise, an optional electronic control unit member having a second electronic control unit that satisfies the additional specifications may be connected to the board connector of the electronic control board. For vehicles such as automobiles, this means that, among the high-grade cars, mid-grade cars, and low-grade cars mentioned above, it is possible to control at a minimum the electrical equipment of the low-grade cars with the fewest number of electrical equipment installed. The first electronic control unit is configured as a standard, the electronic control board on which this first electronic control unit is mounted is used as a shared component, and the specification is such that it can also control electrical components mounted on mid-grade cars or high-grade cars. In this case, an optional electronic control unit member having a second electronic control unit that satisfies the additional specification may be connected to the board connector of the electronic control board. Of course, if it is sufficient to satisfy the minimum required specifications (for example, if it is sufficient to control electrical components of low-grade vehicles), the optional electronic control unit member is naturally not necessary, so the board is mounted on the electronic control board. The connector may not be fixed (in other words, not provided), and the first upper cover may not be fitted to the under cover (in other words, the first upper cover may not be provided). Therefore, according to the electronic control unit housing structure configured as described in (1) above, only the required quantity of electronic control units required for each specification can be housed in the minimum necessary space. The installation space can be saved and the parts can be shared.
Also, if it is sufficient to satisfy the minimum required specifications (for example, if it is sufficient to control the electrical components of a low-grade vehicle), the board connector as in the electronic control unit housing structure of (2) above. In addition, instead of providing the optional electronic control unit member, a second upper cover having a size that can protect the second surface side of the electronic control board may be fitted to the under cover instead of the first upper cover. Therefore, according to the electronic control unit housing structure configured as described in (2) above, only the first electronic control unit is accommodated in the minimum necessary space, thereby reducing the installation space of the first electronic control unit. I can plan.
According to the electronic control unit housing structure configured as described in (3) above, when the optional electronic control unit member is inserted into the housing chamber from the opening on the outer surface of the first upper cover, it is guided by the inner surface of the housing chamber. The connector part of the electronic control unit member and the board connector of the electronic control board can be easily fitted.
As in the electronic control unit housing structure having the configuration (4) above, the electronic control board is provided with a junction block function for distributing and supplying power and transmitting and receiving electrical signals to the optional electronic control unit member via the board connector. If so, the function as a shared part of the electronic control board can be enhanced, which is preferable in terms of cost reduction.
According to the electronic control unit housing structure having the above configuration (5), the fitting of the electrical component connecting connector and the mating connector of the wire harness that is electrically connected to the electrical component is facilitated.
The electronic control unit housing structure having the configuration (6) instead of the configuration (4) is preferable in terms of cost reduction because the junction block substrate can be handled as a common component in addition to the electronic control substrate.
The electronic control unit housing structure having the configuration (7) is also preferable, similarly to the electronic control unit housing structure having the configuration (5).

  According to the present invention, only the required number of electronic control units required for each specification can be accommodated in the minimum necessary space, thereby reducing the installation space of the electronic control unit and sharing parts. Can be achieved.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  Hereinafter, a plurality of suitable embodiments concerning the present invention are described in detail based on a drawing.

  1 is an exploded perspective view of a first embodiment of an electronic control unit housing structure according to the present invention, FIG. 2 is a perspective view of the electronic control unit housing structure of FIG. 1 after assembly, and FIG. 3 is an electronic control unit housing of FIG. FIG. 4 is a cross-sectional view taken along the line III-III of the structure, and FIG. FIG. 5 shows a state in which the connector part of the optional electronic control unit member and the board connector of the electronic control board are fitted together, and the mating connector and the electronic control board of the wire harness that are electrically connected to the electrical components are shown. FIG. 6 is a perspective view of an essential part of a first embodiment of an electronic control unit housing structure showing a state immediately before fitting with an electrically connected electrical component connector. FIG. 7 is an exploded perspective view of the second embodiment of the child control unit accommodation structure, FIG. 7 is a perspective view of the electronic control unit accommodation structure of FIG. 6 after assembly, and FIG. 8 is a VIII-VIII arrow of the electronic control unit accommodation structure of FIG. FIG. 4 and 5 can also be referred to as diagrams for explaining a main part of the second embodiment of FIGS.

(First embodiment)
As shown in FIGS. 1 to 5, the electronic control unit housing structure 100 includes an electronic control board 40 and an electronic control unit housing box 90 for housing the electronic control board 40.

  The electronic control board 40 includes a base board 41 having a conductive electric circuit pattern 43, and a first electronic control unit 42 mounted on the base board 41 so that the legs 42a are electrically connected to the electric circuit pattern 43. And two board connectors 44 that can be fixed to the base board 41 so as to be electrically connected to the electric circuit pattern 43. The board connector 44 may not be provided, and the quantity thereof is determined according to specifications required for the electronic control unit housing structure 100.

  The first electronic control unit 42 of the electronic control board 40 satisfies the minimum necessary specifications, and more specifically, among high-grade vehicles, mid-grade vehicles, and low-grade vehicles in vehicles such as automobiles, The ECU is configured to be able to control at least the electrical components of a low-grade vehicle with the fewest electrical components installed. In other words, the first electronic control unit 42 is an ECU that cannot control all electrical components of high-grade vehicles and mid-grade vehicles.

  The electronic control unit housing box 90 has an under cover 60 that covers the first surface 40a side of the electronic control board 40 and an under cover 60 that covers the second surface 40b side of the electronic control board 40 located on the opposite side of the first surface 40a. And a first upper cover 20 that can be fitted to the cover 60. The electronic control board 40 is held at a predetermined position in the under cover 60 by holding means (not shown).

  As clearly shown in FIG. 3, the board connector 44 includes a connector housing 44a made of a synthetic resin having a substantially L-shape in cross section and metal terminals 44e insert-molded in the connector housing 44a.

  The metal terminal 44e has an electric contact portion 44f extending from the bent portion side of the main body of the metal terminal 44e at one end in parallel with the surface of the base board 41 on the second surface 40b side of the electronic control board 40, and an electric circuit pattern. The other end has an electrical connection portion 44g that makes electrical contact with the through-hole land 46 of 43. For fixing the electrical connection portion 44g of the metal terminal 44e to the through-hole land 46, a bonding material such as solder is used as necessary.

  The electric contact portion 44f extends from the bent portion side of the main body of the metal terminal 44e in a direction away from the surface of the base board 41 on the second surface 40b side of the electronic control board 40 as it goes to the tip. In any case, the board connector 44 and the connector part 13 (described later) of the optional electronic control unit member 10 can be fitted together.

  The connector housing 44a accommodates the metal terminal 44e so that the electrical contact portion 44f and the electrical connection portion 44g are exposed. The tip portion of the connector housing 44a that exposes the electrical contact portion 44f is a female fitting portion 44d (see FIG. 4) for fitting with the male connector portion 13 of the optional electronic control unit member 10. Yes.

  Further, as shown in FIGS. 4 and 5, the connector housing 44a has mounting protrusions 44b on both sides of the base end portion exposing the electrical connection portion 44g of the metal terminal 44e. Each of the mounting protrusions 44b is formed with a mounting through hole 44c.

  When the board connector 44 is fixed on the second surface 40b of the electronic control board 40, first fixing means (not shown) such as a bolt with the electrical connection portion 44g of the metal terminal 44e inserted into the through-hole land 46. After passing through the mounting through hole 44c, second fixing means (not shown) such as a nut is attached to a tip portion protruding from the first surface 40a of the electronic control board 40 of the first fixing means (not shown).

  The first upper cover 20 includes a main body 21, a storage chamber 22 formed in the main body 21 and opened to the outer surface of the main body 21, and a main body so as to form the storage chamber 22 in cooperation with the inner surface of the main body 21. When the first upper cover 20 is fitted to the under cover 60 in order to accommodate the electronic control board 40 in the electronic control unit housing box 90, the electrical contact portion 44f of the metal terminal 44e is formed on the inner surface of the base 21. A partition wall 23 having a through hole 24 that allows the board connector 44 to enter the storage chamber 22 so as to be positioned in the storage chamber 22, and an opening peripheral wall portion 25 that is fitted around the opening peripheral edge of the under cover 60. It has.

  The optional electronic control unit member 10 has, for example, the case structure disclosed in Patent Document 1 described above, and is configured to be electrically connected to the board connector 44.

  The optional electronic control unit member 10 is provided with a second electronic control for satisfying the additional specifications in addition to the specifications that the first electronic control unit 42 of the electronic control board 40 can satisfy. The unit 12 is built in the case 11. More specifically, the second electronic control unit 12 is an ECU that is not mounted on a low-grade vehicle and that satisfies specifications that can control another electrical component mounted on a mid-grade vehicle or a high-grade vehicle. . The connector portion 13 is electrically connected to the second electronic control unit 12.

  As shown in FIGS. 1 to 5, the optional electronic control unit member 10 has a housing chamber for the first upper cover 20 so that the connector portion 13 is electrically connected to the electrical contact portion 44 f of the board connector 44. 22 can be inserted.

  The accommodation chamber 22 is formed so as to extend substantially parallel to the electrical contact portion 44 f of the metal terminal 44 e, and the optional electronic control unit member 10 is inserted into the accommodation chamber 22 from the opening on the outer surface of the first upper cover 20. Therefore, the connector part 13 of the optional electronic control unit member 10 and the board connector 44 of the electronic control board 40 can be easily fitted.

  In the electronic control unit housing structure 100 configured in this way, in addition to the specifications that the first electronic control unit 42 of the electronic control board 40 can satisfy, if additional specifications occur, the additional specifications are changed. The optional electronic control unit member 10 having the satisfied second electronic control unit 12 may be connected to the board connector 44 of the electronic control board 40.

  This is the first electronic control unit that is configured based on the ability to control at least the electrical components of the low-grade vehicle with the least number of electrical components installed among high-grade vehicles, mid-grade vehicles, and low-grade vehicles. The second electronic control unit that satisfies the additional specifications when the electronic control board 40 with the 42 is used as a common part and the electrical components mounted on the mid-grade or high-grade car can be controlled. The optional electronic control unit member 10 having 12 is connected to the board connector 44 of the electronic control board 40.

  Of course, if it is sufficient to satisfy the minimum required specifications (for example, if it is sufficient to control the electrical components of a low-grade vehicle), the optional electronic control unit member 10 is naturally not required, so the electronic control board 40 The board connector 44 may not be fixed (in other words, not provided), and the first upper cover 20 may not be fitted to the under cover 60 (in other words, the first upper cover 20 is not provided). May be).

  Therefore, according to the electronic control unit accommodation structure 100, only the necessary quantity of electronic control units required for each specification can be accommodated in the minimum necessary space, thereby saving the installation space of the electronic control unit. Compatibility with parts sharing. The under cover 60 can also be handled as a common part.

  When it is not necessary to provide the board connector 44 and the optional electronic control unit member 10 (that is, at a level at which electrical components of a low-grade vehicle can be controlled), the first upper cover 20 is enclosed by a chain line in FIG. As shown, the second upper cover 30 for simply covering the second surface 40 b side of the electronic control board 40 is fitted to the under cover 60. The second upper cover 30 only needs to have a size that can protect the second surface 40 b side of the electronic control board 40.

  Therefore, according to such an electronic control unit accommodation structure 100, only the first electronic control unit 42 is accommodated in the minimum necessary space, and thereby the installation space of the first electronic control unit 42 can be saved. It will be.

  The electronic control board 40 has a junction block function for distributing power and sending / receiving electric signals to the optional electronic control unit member 10 via the board connector 44. Since the function is higher than that of a simple ECU board, it is preferable in terms of cost reduction.

  The electronic control unit housing structure 100 further includes an electrical component connection connector 45 provided on the base board 41 on the first surface 40 a side of the electronic control board 40 so as to be electrically connected to the electrical circuit pattern 43. . The electrical component connector 45 includes a connector housing 45a made of synthetic resin and metal terminals 45e that are insert-molded in the connector housing 45a.

  With regard to the electrical component connector 45, particularly referring to FIG. 5, it mates with a mating connector (male connector) 71 connected to the end of the wire 72 of the wire harness 70 that is electrically connected to the electrical component (not shown). The electrical contact portion 45f at one end of the metal terminal 45e is disposed in the female fitting portion for electrical connection, and the electrical connection portion 45g provided at the other end of the metal terminal 45e is connected to the electronic control board 40. It is electrically connected to the electric circuit pattern 43.

  Since the under cover 60 has an opening 62 that exposes the electrical component connection connector 45 so as to allow the connection between the counterpart connector 71 and the electrical component connection connector 45, the electrical component connection connector 45, the counterpart connector 71, and the like. Is easy to fit. The electronic control unit housing structure 100 is provided with two electrical component connection connectors 45, and power is supplied from the wire harness 70 to the electronic control board 40 through at least one of them.

(Second Embodiment)
The electronic control unit housing structure 100A shown in FIGS. 6 to 8 further includes a junction block substrate 50 in place of the electronic control unit housing structure 100 described above instead of having the junction block function. In addition, instead of providing the electrical component connector 45, the electronic control board 40A is provided on the base board 41 on the first surface 40a (see FIG. 3) side so as to be electrically connected to the electrical circuit pattern 43. And an electrical component connection connector 145 electrically connected to the junction block substrate 50 and interposed between the electronic control substrate 40A and the junction block substrate 50, and further including the junction block substrate 50 and the electronic control substrate 40A. An electrical connection member 54 such as a conductive metal rod for electrically connecting Except that it includes, since the same components as the electronic control unit housing structure 100, the components similar to the components already described will be omitted with denoted by the same reference numerals.

  The electrical component connector 145 may be a junction connector (that is, a so-called J / C) having an electric circuit that electrically connects the electronic control board 40A and the junction block board 50 through itself. In this case, the electrical connection member 54 may not be provided.

  As shown in FIG. 8, the junction block substrate 50 is mounted on the base board 51 having a conductive electric circuit pattern 53 and the leg 52 a so as to be electrically connected to the electric circuit pattern 53. Power supply unit 52. The junction block substrate 50 is electrically connected to the electrical connection member 54 that is electrically connected to the electrical circuit pattern 43 of the electronic control board 40A at the electrical circuit pattern 53, and the electronic control board 40A and the electronic control board 40A. Power distribution and electrical signal transmission / reception are performed to the optional electronic control unit member 10 through the board connector 44.

  The junction block substrate 50 is disposed at a predetermined position in the under cover 60 together with the electronic control substrate 40A so as to be disposed between the first surface 40a (see FIG. 3) of the electronic control substrate 40A and the inner surface of the under cover 60. Is held by a holding means (not shown), and is thus housed in the electronic control unit housing box 90.

  Thus, according to the electronic control unit housing structure 100A, the junction block substrate 50 can be handled as a common component in addition to the electronic control substrate 40A, which is preferable in terms of cost reduction.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

It is a disassembled perspective view of 1st Embodiment of the electronic control unit accommodation structure which concerns on this invention. It is a perspective view of the electronic control unit accommodation structure of FIG. 1 after an assembly. FIG. 3 is a cross-sectional view taken along the line III-III of the electronic control unit housing structure of FIG. 2. It is a principal part perspective view of the electronic control unit accommodation structure which shows the state just before the connector part of an optional electronic control unit member and the board connector of an electronic control board fit. Electrical connector electrically connected to the other connector of the wire harness electrically connected to the electrical control board and the electronic control board while the connector part of the optional electronic control unit member and the board connector of the electronic control board are fitted. It is a principal part perspective view of the electronic control unit accommodation structure which shows the state just before fitting with the goods connection connector. It is a disassembled perspective view of 2nd Embodiment of the electronic control unit accommodation structure which concerns on this invention. It is a perspective view of the electronic control unit accommodation structure of FIG. 6 after an assembly. It is VIII-VIII arrow sectional drawing of the electronic control unit accommodation structure of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Electronic control unit accommodation structure 90 Electronic control unit accommodation box 10 Optional electronic control unit member 11 Case 12 2nd electronic control unit 13 Connector part 20 1st upper cover 21 Main body 22 Storage chamber 23 Partition 24 Through-hole 25 Opening peripheral wall part 30 1st 2 Upper cover 40 Electronic control board 40a Electronic control board first surface 40b Electronic control board second surface 41 Base board 42 First electronic control unit 43 Electrical circuit pattern 44 Board connector 44a Connector housing 44b Mounting projection 44c Mounting through hole 44e Metal terminal 44d Fitting part 44f Electrical contact part 44g Electrical connection part 46 Through-hole land 60 Under cover

Claims (5)

A base board having an electric circuit pattern, a first electronic control unit mounted on the base board to be electrically connected to the electric circuit pattern, and the base board to be electrically connected to the electric circuit pattern; An electronic control board having at least one board connector fixable;
An under cover that covers the first surface side of the electronic control board, and a first upper cover that can be fitted to the under cover so as to cover the second surface side of the electronic control board located on the opposite side of the first surface An electronic control unit housing box for housing the electronic control board;
An electronic control unit housing structure comprising:
The board connector has an electrical contact portion at one end extending in a direction parallel to the surface of the base board on the second surface side of the electronic control board or away from the surface of the base board, and is in electrical contact with the electrical circuit pattern. A metal terminal having an electrical connection part at the other end, and a connector housing that houses the metal terminal so as to expose the electrical contact part and the electrical connection part,
The first upper cover is formed on the inner surface of the main body such that the main body, a receiving chamber formed in the main body and opening to the outer surface of the main body, and the receiving chamber formed in cooperation with the inner surface of the main body. And when the first upper cover is fitted to the under cover to accommodate the electronic control board in the electronic control unit housing box, the electrical contact portion of the metal terminal is positioned in the housing chamber. A partition wall having a through hole allowing entry of the board connector into the housing chamber,
In addition to the specifications that can be satisfied by the first electronic control unit of the electronic control board, if additional specifications occur, the second electronic control unit that satisfies the additional specifications and the second electronic control unit that are electrically An optional electronic control unit member having a connector portion that is electrically connected to the board connector can be inserted into the first upper cover accommodating chamber from its opening so as to electrically connect the connector portion to the electrical contact portion of the board connector. An electronic control unit housing structure characterized by that.   When the board connector and the optional electronic control unit member are not provided, a second upper cover for simply covering the second surface side of the electronic control board is fitted to the under cover instead of the first upper cover. The electronic control unit housing structure according to claim 1, wherein:   2. The electronic control unit accommodation structure according to claim 1, wherein the accommodation chamber is formed so as to extend substantially in parallel with an electrical contact portion of the metal terminal.   2. The electronic control board according to claim 1, further comprising a junction block function for distributing and supplying electric power and transmitting and receiving electric signals to and from the optional electronic control unit member via the board connector. Item 4. The electronic control unit accommodation structure according to Item 3. Junction block substrate that is electrically connected to the electronic control board and that distributes power and sends and receives electrical signals to the optional electronic control unit member via the electronic control board and a board connector of the electronic control board Further comprising
The said junction block board | substrate is accommodated in the said electronic control unit accommodation box so that it may be arrange | positioned between the 1st surface of the said electronic control board, and the inner surface of the said under cover. Item 4. The electronic control unit accommodation structure according to Item 3.

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