JP6462181B2 - Electronic control unit - Google Patents

Description

  The present invention relates to the structure of an electronic control device mounted on an automobile or the like.

  In recent years, in an automobile, the space in the engine room has been reduced in size and size in order to secure a vehicle interior space and increase the number of parts in the engine room. Therefore, downsizing is also required for the electronic control device mounted in the engine room. In order to reduce the size of the electronic control device, it is necessary to reduce the size of electronic components and wiring boards that constitute the electronic circuit.

  A connector for connecting to an external cable is attached to one end of the wiring board of the electronic control device, and the connector terminal and the electronic component are connected by board wiring. As a method for connecting the connector terminal to the substrate wiring, for example, there are methods described in Patent Documents 1 and 2.

  Patent Document 1 discloses a configuration in which the terminal of the connector part is integrally formed from one material together with the corresponding conductive bus bar of the main body of the circuit part.

  On the other hand, in Patent Document 2, a terminal bent portion bent by approximately 90 ° is formed on the mounting surface side of the connector and the substrate from the tip of the terminal base portion protruding from the connector, and further, from the tip of the terminal bent portion, A configuration is disclosed in which an electrical joint bent to be substantially parallel to the terminal base is formed, and the electrical joint is in close contact with the substrate.

JP 2011-077003 A JP 2007-137390 A

  However, in the configurations of Patent Documents 1 and 2, since a bundle of connector terminals connected to a single external cable is arranged in the vicinity of the end of the wiring board, each electronic component connected to the connector terminal In addition, a board wiring extending from the electronic component to the vicinity of the end of the wiring board is required. That is, there is a limit to downsizing of the wiring board because it is necessary to secure a wiring area for connecting the electronic component and the connector terminal to the wiring board at a certain level or more. Furthermore, noise resistance may be lowered due to the length of the substrate wiring.

  Further, in the configurations of Patent Documents 1 and 2, the connector terminals are arranged in a horizontal row in the connector housing, and the number of terminals that can be connected to the wiring board is limited. Therefore, it cannot be applied to an electronic control device that sends and receives many signals inside and outside.

  The present invention has been made to solve the above-described problems, and the object thereof is to reduce the wiring length of the electronic circuit board, thereby reducing the size of the electronic circuit board and improving the noise resistance. It is to provide an electronic control device.

In order to solve the above-described problems, the present invention provides an electronic circuit board on which a plurality of electronic components are mounted, a connector connected to a single external cable, and a plurality of terminals that connect the electronic circuit board and the connector. In the electronic control device including the conductive member, the connector side terminals of the plurality of conductive members are arranged in a plurality of rows and a plurality of rows at the connector opening portion of the connector, and the board of the plurality of conductive members in the electronic circuit board. area of divided areas outer edge is determined by the side pin, the connector much larger than the area of the divided areas outer edge defined by the connector-side terminal in the frontage part, the substrate-side terminals of the plurality of conductive members, said electronic circuit board The connector is inserted through each of the plurality of through-holes, and the connector includes board-side terminals of the plurality of conductive members in the plurality of through-holes, respectively. And aligning at least a part of the alignment member with a predetermined distance from the electronic circuit board, and at least a part of the plurality of electronic components below the alignment member. The alignment member is inserted through at least one of the substrate-side terminals of the plurality of conductive members below a part of the alignment member that is disposed at a predetermined distance from the electronic circuit board. It shall have a boss .

  According to the electronic control device of the present invention, it is possible to reduce the size of the electronic circuit board and improve the noise resistance.

It is the disassembled perspective view which looked at the electronic control unit concerning the 1st example of the present invention from the connector side. It is the disassembled perspective view which looked at the electronic control unit concerning the 1st example of the present invention from the opposite side of a connector. It is a longitudinal cross-sectional view of the electronic control apparatus which concerns on 1st Example of this invention. It is a cross-sectional view (illustration of a cover and a base is abbreviate | omitted) of the electronic control apparatus which concerns on 1st Example of this invention. It is a longitudinal cross-sectional view of the electronic controller which concerns on 2nd Example of this invention. It is a longitudinal cross-sectional view of the electronic control apparatus which concerns on the 3rd Example of this invention. It is a longitudinal cross-sectional view of the electronic control apparatus which concerns on the 4th Example of this invention. It is a longitudinal cross-sectional view of the electronic control apparatus which concerns on the 5th Example of this invention. It is a cross-sectional view (illustration of a cover and a base is omitted) of an electronic control device according to a sixth embodiment of the present invention. It is a cross-sectional view (illustration of a cover and a base is abbreviate | omitted) of the electronic control apparatus which concerns on the 5th Example of this invention. It is a longitudinal cross-sectional view of the electronic controller which concerns on the 8th Example of this invention. It is a longitudinal cross-sectional view of the electronic controller which concerns on the 9th Example of this invention. It is a longitudinal cross-sectional view of the electronic control apparatus based on the 10th Example of this invention. It is a longitudinal cross-sectional view of the electronic controller which concerns on 11th Example of this invention. It is a longitudinal cross-sectional view of the electronic controller which concerns on the 12th Example of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same member and the overlapping description is abbreviate | omitted suitably.

  FIG. 1 shows an exploded perspective view of the electronic control device according to the first embodiment of the present invention as viewed from one side (the connector 3 side described later), and FIG. 2 shows the other side (the opposite side of the connector 3). The exploded perspective view seen from is shown. FIG. 3 is a longitudinal sectional view of the electronic control device according to this embodiment, and FIG. 4 is a transverse sectional view. In FIG. 4, a cover 4 and a base 5 to be described later are not shown for simplification.

  The electronic control device 1 according to the present embodiment is, for example, an ECU (engine control unit) or an ATCU (automatic transmission control unit) mounted in an engine room.

  The electronic control device 1 includes an electronic circuit board 2 on which a plurality of electronic components 22 are mounted, a connector 3 attached to one end of the electronic circuit board 2 and connected to an external cable (not shown) such as a vehicle harness. A cover 4 and a base 5 for accommodating the electronic circuit board 2 are provided.

  The cover 4 and the base 5 are molded from a resin such as PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), PA (nylon), or a metal whose main component is aluminum or iron. The electronic circuit board 2 is accommodated inside the housing constituted by the cover 4 and the base 5 so that a part of the connector 3 (a connector opening portion 32 described later) is exposed to the outside. The cover 4 is fixed to the base 5 using means such as screws and caulking. Seal members 6 are disposed on the joint surface between the cover 4 and the base 5 and the joint surface between the cover and the connector 3, respectively. Thereby, it is possible to prevent water from entering the housing.

  The electronic circuit board 2 is a multilayer board having a base material obtained by impregnating glass cloth with an epoxy resin as a main material and having a plurality of copper wiring layers. The plurality of electronic components 22 are mounted on both surfaces of the electronic circuit board 2 by soldering, and constitute an electric circuit together with the board wiring. Of the plurality of electronic components 22, those that generate heat (hereinafter referred to as “heat-generating electronic components”) are thermally connected to the cover 4 or the base 5 via a heat radiating member (not shown) as necessary. . Thereby, the heat generated in the heat-generating electronic component can be radiated to the outside air.

  The connector housing 31 of the connector 3 is molded from a resin such as PBT (polybutylene terephthalate), PA (polyamide), PPS (polyphenylene sulfide), and the like. A member 33 is provided. The plurality of conductive members 33 exchange voltage and current inside and outside the electronic control device 1.

  A plurality of rows and rows of one end portions (hereinafter referred to as “connector side terminals”) 34 of a plurality of conductive members 33 are formed in the connector opening portion 32 of the connector 3 to be fitted with a connector (not shown) of an external cable. (For example, a square lattice pattern). Thereby, it becomes possible to connect the some connector side terminal 34 with a single external cable. The plurality of connector-side terminals 34 are divided into a plurality of groups (bundles), and the connector-side terminals 34 are aligned for each group, so that they can be connected to a plurality of external cables.

  The plurality of conductive members 33 extend from the connector opening 32 toward the inside of the housing, and are bent in a direction perpendicular to the electronic circuit board 2 at predetermined positions, and connected to the electronic circuit board 2. . As a method for connecting to the electronic circuit board 2, the other end portion (hereinafter referred to as “board-side terminal”) 35 of the conductive member 33 is inserted into the through hole 21 provided in the electronic circuit board 2, and the electronic circuit board 2. There are a method of soldering from the back surface of the substrate by spot flow, a method of press-fitting the substrate side terminal 35 to the through hole 21, and the like. In this way, the board-side terminal 35 occupies the surface of the electronic circuit board 2 as compared with the case where the board-side terminal 35 is passed through the through-hole 21 and fixed by soldering or caulking, compared to the case of connection by surface mounting. The connection area can be reduced. Thereby, the area of the component mounting area of the electronic circuit board 2 can be increased.

  In FIG. 3, the conductive member 33 a is bent in the direction perpendicular to the electronic circuit board 2 in the vicinity of the connector 3, and the board-side terminal 35 a is inserted into the through hole 21 a provided in the component non-mounting area of the electronic circuit board 2. Inserted and fixed. On the other hand, the conductive members 33 b and 32 c are bent in the direction perpendicular to the electronic circuit board 2 at a position far from the connector 3, and the board-side terminals 35 b and 35 c are through holes provided in the component mounting area of the electronic circuit board 2. It is inserted and fixed to 21b and 21c. Therefore, the distance d1 between the board-side terminals 35a and 35b adjacent to each other is larger than the distance (pitch) d2 between the connector-side terminals 34a and 34b correspondingly, and the distance d3 between the board-side terminals 35b and 35c adjacent to each other. Is larger than the distance d4 between the corresponding connector side terminals 34a and 34b. That is, the distance D1 between the board-side terminal 35a arranged closest to the connector 3 and the board-side terminal 35c arranged farthest from the connector-side terminal 34a arranged at the lowermost stage of the connector opening 32 and the uppermost stage. It becomes larger than the space | interval D2 with the connector side terminal 34c arrange | positioned in this. As a result, the area of the partition area 351 (shown in FIGS. 1 and 4) in which the outer edge is defined by the plurality of board-side terminals 35 in the electronic circuit board 2 is defined by the plurality of connector-side terminals 34 in the connector opening portion 32. It becomes larger than the area of the partition region 341 (shown in FIG. 1).

  In addition, the lead length of the conductive member 33c having the connector side terminal 34c arranged at the upper stage of the connector opening 32 is larger than the lead length of the conductive member 33b having the connector side terminal 34b arranged at the middle stage, and is arranged in the middle stage. The lead length of the conductive member 33b having the connector-side terminal 34b thus formed is larger than the lead length of the conductive member 33a having the connector-side terminal 34a arranged at the lower stage. Thus, by arranging the connector-side terminal of the conductive member 33 with a large lead length above the connector-side terminal of the conductive member 33 with a smaller lead length, the shape of the conductive member 33 is made a simple L-shape. It is possible to prevent interference between the conductive members 33 while maintaining.

  In FIG. 4, board-side terminals 35b1, 35b2, 35b3, 35c1, 35c2, and 35c3 such as conductive members 33c1, 33c2, and 33c3 extending far from the connector 3 are electrically connected to electronic components 22a, 22b, and 22c, respectively. , 22d, 22e, and 22f are arranged in the adjacent regions 221a, 221b, 221c, 221d, 221e, and 221f. The near region here is a region within a predetermined distance from the outer edge of the electronic component 22, and the predetermined distance is set based on, for example, the interval between the electronic components 22 adjacent to each other. Thereby, the length of the board | substrate wiring which connects the connector side terminal 34 and the electronic component 22 can be restrained below the said predetermined distance. If there are a plurality of electronic components 22 to be electrically connected, the lead of the conductive member 33 can be obtained by arranging the board-side terminal 35 in the vicinity region 221 of the electronic component 22 mounted closest to the connector 3. The length can be suppressed.

  Here, by increasing the lead length of the conductive member 33, the positional deviation of the board side terminal 35 with respect to the through hole 21 increases, and when the connector 3 is attached to the electronic circuit board 2, the board side terminal 35 is moved to the through hole 21. There is a risk that the insertability of the will deteriorate. Therefore, in this embodiment, the connector 3 is provided with an alignment member 36 for performing alignment (positioning) of the board-side terminals 35. The alignment member 36 is provided with a plurality of through holes 361 corresponding to the positions of the respective through holes 21 of the electronic circuit board 2, and the board side terminals 35 are respectively inserted into the through holes 361. Thereby, the alignment to the through hole 21 of the board | substrate side terminal 35 is securable.

  In FIG. 3, the alignment member 36 has a bent shape molded from a resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide). The connector-side end of the alignment member 36 is installed in close contact with the component non-mounting area of the electronic circuit board 2, and the other portions are installed at a predetermined interval from the component mounting area of the electronic circuit board 2. . The predetermined height here is set based on the height of the electronic component 22 mounted on the upper surface of the electronic circuit board 2. As a result, the electronic component 22 can be arranged below the alignment member 36.

  According to the electronic control apparatus 1 according to the present embodiment, a part of the plurality of conductive members 33 is extended to the component mounting area of the electronic circuit board 2, and the board is disposed in the vicinity region 221 of the electronic component 22 to be electrically connected. By arranging the side terminal 35, the board wiring for connecting the connector side terminal 34 and the electronic component 22 can be shortened. Thereby, since the wiring area of the electronic circuit board 2 can be reduced, the electronic circuit board 2 can be miniaturized. Further, by reducing the size of the electronic circuit board 2, the base 5 and the cover 4 can be reduced in size and cost.

  In addition, the noise resistance of the electronic circuit board 2 can be improved by shortening the board wiring connecting the connector-side terminal 34 and the electronic component 22.

  An electronic control apparatus according to a second embodiment of the present invention will be described focusing on differences from the first embodiment (shown in FIG. 3).

  FIG. 5 shows a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 5, the electronic control device 1 includes a single-side mounted electronic circuit board 2, and a flat plate-shaped alignment member 36 is installed in close contact with the upper surface of the electronic circuit board 2 on which the electronic component 22 is not mounted. Has been.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  In the electronic control device 1 including the electronic circuit board 2 mounted on one side, the alignment member 36 can be formed in a simple flat plate shape, and thus the manufacturing cost of the alignment member 36 can be suppressed.

  In addition, the alignment member 36 installed in close contact with the upper surface of the electronic circuit board 2 grips the vicinity of the tips of the board-side terminals 35b and 35c arranged far from the connector 3 (component mounting area of the electronic circuit board 2). Therefore, the alignment of the board side terminals 35b and 35c with respect to the through holes 21b and 21c can be improved.

  An electronic control apparatus according to a third embodiment of the present invention will be described focusing on differences from the first embodiment (shown in FIG. 3).

  FIG. 6 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 6, the alignment member 36 is between the electronic circuit board 2 and a part (a part located above the component mounting area of the electronic circuit board 2) arranged at a predetermined interval from the electronic circuit board 2. A plurality of boss portions 362 are integrally provided through the board-side terminals 35b and 35c disposed far from the connector 3, respectively.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  In the electronic control device 1 including the electronic circuit board 2 mounted on both sides, the boss portion 362 holds the vicinity of the tips of the board-side terminals 35b and 35c arranged far from the connector 3 (component mounting area of the electronic circuit board 2). Therefore, the alignment of the board side terminals 35b and 35c with respect to the through holes 21b and 21c can be improved.

  An electronic control apparatus according to a fourth embodiment of the present invention will be described focusing on differences from the third embodiment (shown in FIG. 6).

  FIG. 7 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 7, the conductive member 33c (large diameter) for large current transmission is extended to above the component mounting area of the electronic circuit board 2, while the other conductive members 33a and 33b (small diameter) are extended. Not. Therefore, in this embodiment, the distance d1 between the board-side terminals 35a and 35b adjacent to each other is smaller than the distance d2 between the corresponding connector-side terminals 34a and 34b, and the distance between the board-side terminals 35b and 35c adjacent to each other. d3 is enlarged accordingly. That is, also in the present embodiment, as in the above-described embodiment, the distance D1 between the board-side terminal 35a arranged closest to the connector 3 and the board-side terminal 35c arranged farthest is the connector opening 32. The distance D2 is greater than the distance D2 between the connector side terminal 34a arranged at the lowermost stage and the connector side terminal 34c arranged at the uppermost stage.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  By extending only the conductive member 33c for large current transmission to the component mounting area and preferentially shortening the wiring pattern requiring a large width, the wiring area can be efficiently reduced.

  In addition, since the number of conductive members 33 extending to the component mounting area can be reduced, the manufacturing cost of the connector 3 can be reduced.

  An electronic control apparatus according to a fifth embodiment of the present invention will be described focusing on differences from the fourth embodiment (shown in FIG. 7).

  FIG. 8 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 8, board-side terminals 35 a and 35 b arranged in the vicinity of the connector 3 (non-component mounting area of the electronic circuit board 2) are inserted into the through holes 21 a and 21 b through the alignment member 36, respectively. The board-side terminal 35c disposed far away (the component mounting area of the electronic circuit board 2) is inserted into the through hole 21c without the alignment member 36 interposed therebetween. The conductive member 33c having the board-side terminal 35c disposed far from the connector 3 is larger in diameter and smaller in deformation than the other conductive members 33a and 33b. Therefore, the alignment with respect to the through hole 21c can be performed without using the alignment member 36. Can be secured.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  By arranging the alignment member 36 only in the vicinity of the connector 3, the alignment member 36 can be formed in a small and simple plate shape, so that the manufacturing cost of the alignment member 36 can be suppressed.

  An electronic control apparatus according to a sixth embodiment of the present invention will be described focusing on differences from the first embodiment (shown in FIG. 4).

  FIG. 9 shows a cross-sectional view of the electronic control device 1 according to this embodiment (the illustration of the cover 4 and the base 5 is omitted).

  In FIG. 9, the conductive members 33c1, 33c2, and 33c3 are bent in a direction parallel to the electronic circuit board 2 and perpendicular to the connector side terminals 34c1, 34c2, and 34c3 before being bent in a direction perpendicular to the electronic circuit board 2. The board side terminal 35c1 of the conductive member 33c1 is disposed in the vicinity region 221g of the electronic component 22g to be electrically connected, and the board side terminals 35c2 and 35c3 of the conductive member 33c2 and 33c5 are electrically connected. The electronic component 22h is disposed in the vicinity region 221h.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  Before the conductive member 33 is bent in the direction perpendicular to the electronic circuit board 2, the connector side terminal 34 is bent by bending in a direction intersecting with a plane defined by the connector side terminal 34 and the vertical direction of the electronic circuit board 2. The board-side terminal 35 can be disposed in the vicinity region 221 of the electronic component 22 that is not in the vicinity of the extension of the board. As a result, the board-side terminals 35 can be arranged in the vicinity region 221 of the electronic component 22 arranged at an arbitrary position, and the degree of freedom in layout of the electronic component 22 can be improved.

  An electronic control apparatus according to a seventh embodiment of the present invention will be described focusing on differences from the sixth embodiment (shown in FIG. 9).

  FIG. 10 is a cross-sectional view of the electronic control device 1 according to this embodiment (the illustration of the cover 4 and the base 5 is omitted).

  In FIG. 10, the board-side terminal 35b2 of the conductive member 33b2, the board-side terminal 35b1 of the conductive member 33b1, and the board-side terminal 35c1 of the conductive member 33c1 are arranged in the vicinity region 231a of the heat-generating electronic component 23a. The board-side terminal 35c2 of the conductive member 33c2, the board-side terminal 35b3 of the conductive member 33b3, and the board-side terminal 35c3 of the conductive member 33c3 are disposed in the vicinity region 231b. The board-side terminals 35b2, 35b1, and 35c1 do not necessarily need to be electrically connected to the heat-generating electronic component 23a, and the board-side terminals 35c2, 35b3, and 35c3 are not necessarily electrically connected to the heat-generating electronic component 23b. It does not have to be connected to.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  By arranging the plurality of board-side terminals 35 in the vicinity region 231 of the heat-generating electronic component 23, the heat generated in the heat-generating electronic component 23 can be radiated through the plurality of conductive members 33. The heat dissipation of 2 can be improved.

  An electronic control apparatus according to an eighth embodiment of the present invention will be described focusing on differences from the fifth embodiment (shown in FIG. 8).

  FIG. 11 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 11, a board-side terminal 35 c having a large diameter is arranged in a region 231 near the heat-generating electronic component 23. The board-side terminal 35c does not necessarily have to be electrically connected to the heat-generating electronic component 23.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  By arranging the board-side terminal 35c in the vicinity region 231 of the heat-generating electronic component 23, the heat generated in the heat-generating electronic component 23 can be radiated through the conductive member 33c having a large surface area. The heat dissipation of 2 can be improved.

  An electronic control apparatus according to a ninth embodiment of the present invention will be described focusing on differences from the eighth embodiment (shown in FIG. 11).

  FIG. 12 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 12, in the vicinity region 231 of the heat-generating electronic component 23, the board-side terminal 35c of the conductive member 33c having a small diameter for small current is arranged. A heat radiating fin 331 is provided in a part of the conductive member 33c. Note that it is desirable to dispose the heat dissipating fins 331 in the vicinity of the electronic circuit board 2 so that the heat transfer distance from the heat-generating electronic component 23 is reduced.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as in the eighth embodiment, the following effects can be obtained.

  By providing the heat radiating fins 331 to the conductive member 33c having the board-side terminal 35c disposed in the vicinity region 231 of the heat-generating electronic component 23, the board-side terminal 35 of the conductive member 33 having a small diameter is connected to the heat-generating electronic component 23. Even when it is disposed in the vicinity region 231, the heat generated in the heat-generating electronic component 23 can be efficiently radiated.

  An electronic control apparatus according to a tenth embodiment of the present invention will be described focusing on differences from the ninth embodiment (shown in FIG. 12).

  FIG. 13 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 13, a plurality of through holes 21 c are provided in the vicinity region 231 of the heat-generating electronic component 23, and a plurality of board-side terminals 35 c extending from the heat radiation fins 331 are extended to the plurality of through holes 21 c, respectively. Has been inserted.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the ninth embodiment, the following effects can be obtained.

  By connecting the plurality of board-side terminals 35c arranged in the vicinity region 231 of the heat generating electronic component 23 to the heat radiating fins 331, the heat transfer efficiency from the heat generating electronic component 23 to the heat radiating fins 331 can be improved. .

  An electronic control apparatus according to an eleventh embodiment of the present invention will be described focusing on differences from the first embodiment (shown in FIG. 3).

  FIG. 14 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 14, the entire electronic circuit board 2 and the conductive members 33 a, 33 b, 33 c (excluding a part of the connector side terminals 34 a, 34 b, 34 c exposed from the connector opening 32) are sealed with the sealing resin 7. It has been stopped. Examples of the material of the sealing resin 7 include an epoxy system, a urethane system, a silicone system, and a polyester system. A heat sink 8 is attached below the sealing resin 7 in parallel with the electronic circuit board 2.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

  By fixing the entire electronic circuit board 2 and the conductive members 33a, 33b, and 33c with the sealing resin 7, the vibration of the conductive members 33a, 33b, and 33c is suppressed, and the vibration resistance of the electronic control device 1 can be improved. It becomes possible.

  Further, since the electronic component 22 and the conductive members 33a, 33b, and 33c are in contact with the sealing resin 7, the heat generated in the electronic component 22 and the conductive members 33a, 33b, and 33c is transferred to the electronic circuit board 2 and the connector housing. In addition to radiating heat to the outside air via 31, heat can also be radiated to the outside air via the sealing resin 7 and the heat sink 8. Thereby, the heat dissipation of the electronic circuit board 2 can be improved.

  Further, by sealing the entire electronic circuit board 2 with the sealing resin 7, the base 5 and the cover 4 (shown in FIG. 3) are not required, so that the electronic control device 1 can be further reduced in size. .

  An electronic control apparatus according to a twelfth embodiment of the present invention will be described focusing on differences from the eleventh embodiment (shown in FIG. 14).

  FIG. 15 is a longitudinal sectional view of the electronic control device according to this embodiment.

  In FIG. 15, the connector 3 is not provided with the alignment member 36 (shown in FIG. 14). Since the conductive members 33a and 33b having the board side terminals 35a and 35b arranged in the vicinity of the connector 3 (non-component mounting area of the electronic circuit board 2) have a small lead length and small deformation, the board members 35a and 35b A positional shift with respect to the through holes 21a and 21b can be suppressed. On the other hand, the conductive member 33c having the board-side terminal 35c disposed far from the connector 3 (the component mounting area of the electronic circuit board 2) has a large cross-sectional area and small deformation, and therefore the position of the board-side terminal 35c relative to the through hole 21c. Deviation can be suppressed. Therefore, even if the connector 3 is not provided with the alignment member 36 (shown in FIG. 14), the alignment of all the board-side terminals 35, 35b, and 35c can be ensured.

  According to the electronic control apparatus 1 according to the present embodiment, in addition to the same effects as those of the eleventh embodiment, the following effects can be obtained.

  Since the alignment member 36 (shown in FIG. 4) is not required, the manufacturing cost of the electronic control device 1 can be reduced.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. It is also possible to add a part of the configuration of another embodiment to the configuration of a certain embodiment, and delete a part of the configuration of a certain embodiment or replace it with a part of another embodiment. Is possible.

  DESCRIPTION OF SYMBOLS 1 ... Electronic control apparatus, 2 ... Electronic circuit board, 21, 21a, 21b, 21c ... Through hole, 22, 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h ... Electronic component, 221, 221a, 221b, 221c, 221d, 221e, 221f, 221g, 221h ... vicinity region, 23, 23a, 23b ... exothermic electronic components, 231, 231a, 231b ... vicinity region, 3 ... connector, 31 ... connector housing, 32 ... connector opening, 33,33a, 33b, 33b1,33b2,33b3,33c, 33c1,33c2,33c3 ... conductive member, 331 ... radiating fin, 34,34a, 34b, 34c, 34c1,34c2,34c3 ... connector side terminal, 341 ... partition area , 35, 35a, 35b, 35c, 35b1, 35b2, 35b , 35 c 1, 35 c 2, 35 c 3... Substrate side terminal, 351... Partitioned area, 36... Alignment member, 361. 8 ... Radiator.

Claims (11)

An electronic circuit board on which a plurality of electronic components are mounted;
A connector connected to a single external cable;
In an electronic control device comprising a plurality of conductive members for connecting the electronic circuit board and the connector,
The connector-side terminals of the plurality of conductive members are arranged in a plurality of stages and a plurality of rows in the connector opening portion of the connector,
The area of the divided areas the outer edge is determined by the substrate-side terminals of the plurality of conductive members in the electronic circuit board is much larger than the area of the divided areas outer edge by the connector-side terminal in the connector frontage part is determined,
The board-side terminals of the plurality of conductive members are respectively inserted into a plurality of through holes provided in the electronic circuit board,
The connector has an alignment member that aligns the board-side terminals of the plurality of conductive members with respect to each of the plurality of through holes,
At least a part of the alignment member is installed at a predetermined interval from the electronic circuit board,
At least some of the plurality of electronic components are disposed below the alignment member,
The alignment member has a boss portion that passes through at least one of the substrate-side terminals of the plurality of conductive members, below a part of the alignment circuit that is spaced from the electronic circuit board by a predetermined distance. An electronic control device. The electronic control device according to claim 1.
The board-side terminal of the predetermined conductive member among the plurality of conductive members is one of the plurality of electronic components that are electrically connected to the predetermined conductive member and is mounted closest to the connector. An electronic control device arranged in the vicinity of a component. The electronic control device according to claim 1.
The board-side terminal of the conductive member having the connector-side terminal arranged at the upper stage of the connector front end is arranged farther from the connector than the board-side terminal of the conductive member having the connector-side terminal arranged at the lower stage of the connector front end. An electronic control device characterized by comprising: The electronic control device according to claim 1.
The cross-sectional area of a predetermined conductive member that extends above the component mounting area among the plurality of conductive members is larger than the cross-sectional area of other conductive members that do not extend above the component mounting area. Control device. The electronic control device according to claim 4 .
The electronic control device according to claim 1, wherein the connector-side terminal of the predetermined conductive member is arranged at the uppermost stage of the connector opening. The electronic control device according to claim 1.
At least one of the plurality of conductive members is bent in a direction intersecting a plane defined by the connector-side terminal and a vertical direction of the electronic circuit board. The electronic control device according to claim 1.
The plurality of electronic components include heat-generating electronic components,
The electronic control device according to claim 1, wherein a substrate-side terminal of a predetermined conductive member that is at least one of the plurality of conductive members is disposed in a region near the heat-generating electronic component. The electronic control device according to claim 7 .
The electronic control device according to claim 1, wherein a cross-sectional area of the predetermined conductive member is larger than a cross-sectional area of other conductive members. The electronic control device according to claim 7 .
The electronic control apparatus according to claim 1, wherein the predetermined conductive member includes a heat radiating fin. The electronic control device according to claim 9 .
The electronic control apparatus, wherein the predetermined conductive member includes a plurality of board-side terminals that connect the heat radiating fins and a region near the heat-generating electronic component. The electronic control device according to claim 1.
The electronic control device is characterized in that the electronic circuit board is sealed with a sealing resin.

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