JP5961763B2 - Electronic circuit connection structure - Google Patents

Description

  The present invention relates to an electronic circuit connection structure for connecting an electronic circuit device and an electronic circuit connection device.

  For example, in Japanese Patent No. 4478007, a part of a circuit board on which an electronic component is mounted is extended to form a convex terminal part, and a part other than the convex terminal part on the circuit board and the electronic part are sealed with resin. It is disclosed that an electronic circuit device is configured by covering with a stopper.

  In this case, the electronic circuit device is connected to the electronic circuit connection device. That is, the electronic circuit connection device has a housing in which a housing recess for housing the electronic circuit device is formed. A concave terminal portion is provided at the bottom of the housing concave portion of the housing, and the convex terminal portion and the concave terminal portion are connected by housing the electronic circuit device in the housing concave portion.

  A groove is formed along the outer periphery of the resin sealing portion, and a seal member is provided in the groove. When the convex terminal portion and the concave terminal portion are connected, the gap between the housing concave portion and the resin sealing portion is sealed with a sealing member, thereby preventing water from entering through the gap.

  However, the resin sealing portion is formed by sandwiching a circuit board between upper and lower molds and pouring resin serving as the resin sealing portion into the mold. Therefore, by forming a parting line in the resin sealing portion along the split surface of the mold, the adhesion between the seal member and the resin sealing portion is hindered, and the waterproof property is lowered.

  Further, when the convex terminal portion and the concave terminal portion are not connected, that is, when the electronic circuit device is not accommodated in the accommodating concave portion, a protective cover for protecting the convex terminal portion is required. . However, when the electronic circuit device is housed in the housing recess and the convex terminal portion and the concave terminal portion are connected, a protective cover becomes unnecessary, and storage and management of the protective cover becomes difficult.

  Therefore, the present invention provides an electronic circuit connection structure that can ensure waterproofness even if a parting line is formed in a resin sealing portion, and that can easily store and manage a protective cover. Objective.

  An electronic circuit connection structure according to the present invention is a connection structure for connecting an electronic circuit device and an electronic circuit connection device, and has the following characteristics.

  First feature: The electronic circuit device includes a circuit board on which an electronic component is mounted, a resin sealing portion that seals the electronic component and the circuit board, and a part of the circuit board that extends to form the resin. A convex terminal portion exposed from the sealing portion; and a protective cover having a protective concave portion that accommodates and protects the convex terminal portion. On the other hand, the electronic circuit connecting device includes a housing in which a housing concave portion for housing the electronic circuit device is formed, a concave terminal portion that is provided at a bottom of the housing concave portion and fits with the convex terminal portion, and the concave shape A wiring portion electrically connected to the terminal portion and exposed to the outside of the housing. In this case, when fitting the convex terminal portion and the concave terminal portion, the protective cover is removed from the convex terminal portion and fitted into the resin sealing portion, and the housing Mating. A seal member is disposed between the protective cover and the housing.

  2nd characteristic; When the said protective cover protects the said convex terminal part, the said circuit board and the said resin sealing part are positioned in the state which made the part of the said resin sealing part protrude from the said protective cover When the first engaging portion, the convex terminal portion, and the concave terminal portion are fitted to each other, at least the convex terminal portion is prevented from protruding outward from the protective cover. A second engaging portion for positioning the stop portion.

  Third feature: The electronic circuit device further includes a third engagement portion formed on a side surface of the resin sealing portion and engaged with the first engagement portion or the second engagement portion. In this case, the first engaging portion is formed on a side surface of the protective recess facing the side surface of the resin sealing portion, and in the insertion direction of the circuit board and the resin sealing portion toward the bottom of the protective recess. The circuit board and the resin sealing portion are positioned by engaging with the third engaging portion at a relatively shallow position along. On the other hand, the second engagement portion is formed on a side surface of the protective recess facing the side surface of the resin sealing portion, and engages with the third engagement portion at a relatively deep position along the insertion direction. Thereby, the circuit board and the resin sealing portion are positioned.

  Fourth feature: At the center of the bottom of the protective recess, a protrusion along the insertion direction is formed, and at the center of the bottom surface of the resin sealing portion opposite to the convex terminal portion, A fitting recess for fitting with the protrusion is formed.

  Fifth feature: the protective cover or the housing is provided with a flange portion, and the flange portion is provided on the protective cover when the convex terminal portion and the concave terminal portion are fitted together. The circuit board and the resin sealing portion are positioned and fixed in the housing recess when the protective cover abuts against the flange portion provided in the housing.

  Sixth feature: a fourth engagement portion is provided on an outer peripheral surface of the resin sealing portion, and the protective cover includes a case where the convex terminal portion is protected by the protective cover, and the convex shape. In any case where the terminal portion and the concave terminal portion are fitted, a fifth engagement portion that engages with the fourth engagement portion is further provided.

  According to the first feature of the present invention, in the state where the convex terminal portion and the concave terminal portion are not connected as in transport of the electronic circuit device, the protective cover is the convex terminal. The part is housed in the protective recess and protected. On the other hand, in a state where the convex terminal portion and the concave terminal portion are connected, the protective cover is used as a connection member that fits into the housing.

  Accordingly, it is possible to simplify the entire electronic circuit connection structure including the electronic circuit device while effectively using the protective cover that is unnecessary when the convex terminal portion and the concave terminal portion are connected. it can.

  Further, in the manufacturing process of the protective cover, it is easy to prevent a parting line from being formed on the surface on which the seal member is disposed. Therefore, in the protective cover, the surface on which the seal member is disposed can be formed flat. As a result, when the protective cover and the housing are fitted together when the convex terminal portion and the concave terminal portion are connected, the gap between the protective cover and the housing is reliably sealed by the seal member. As a result, the waterproofness of the electronic circuit connection structure can be improved.

  Thus, since the said clearance gap is reliably sealed by the said sealing member, the waterproofness of the said electronic circuit connection structure can be ensured, without resorting to the resin mold (the said resin sealing part) with respect to the said electronic circuit device. . In addition, since the electronic circuit device (the electronic components and the circuit board constituting the electronic circuit device) is reliably accommodated in the internal space of the electronic circuit connection structure, vibration resistance can be ensured.

  That is, in the electronic circuit connection structure, the protective cover used for transporting the electronic circuit device is fitted with the resin sealing portion and coupled with the housing, thereby While ensuring waterproofness and vibration resistance, it can be effectively used as a protective cover for protecting the circuit board.

  Further, the protective cover is always coupled to the circuit board (and the resin sealing portion) constituting the electronic circuit device. Therefore, there is no worry of losing the protective cover. Further, during the maintenance of the electronic circuit device, the convex terminal portion can be reliably protected by covering the convex terminal portion with the protective cover.

  Thus, according to the first feature of the present invention, the electronic circuit connection structure is configured as described above, thereby ensuring waterproofness even when the parting line is formed in the resin sealing portion. In addition, the protective cover can be easily stored and managed.

  According to the 2nd characteristic of this invention, when protecting the said convex terminal part, a part of said resin sealing part protrudes from the said protective cover. Therefore, it becomes easy to take out the circuit board from the protective cover, and workability is improved. On the other hand, when the convex terminal portion and the concave terminal portion are fitted, at least the convex terminal portion does not protrude from the protective cover, so that the convex terminal portion can be reliably protected.

  According to a third aspect of the present invention, when the convex terminal portion is protected, the first engagement portion and the third engagement portion are engaged at a relatively shallow position along the insertion direction. As a result, a part of the resin sealing portion can be protruded from the protective cover. On the other hand, when fitting the convex terminal portion and the concave terminal portion, the second engagement portion and the third engagement portion are engaged at a relatively deep position along the insertion direction. Thus, the convex terminal portion can be prevented from protruding from the protective cover. As a result, the electronic circuit connection structure can be made simpler. In order to obtain such a configuration, for example, the first engaging portion is a shallow groove, the second engaging portion is a deep groove, and the third engaging portion is fitted in each groove. A protrusion is preferable.

  According to a fourth aspect of the present invention, when the protrusion and the fitting recess are fitted, the circuit board and the resin sealing portion are on a central axis along the insertion direction of the protective cover. Will be placed. This facilitates alignment of the protective cover and the housing when fitting the convex terminal portion and the concave terminal portion, and alignment of the convex terminal portion and the concave terminal portion. It can be carried out.

  According to a fifth feature of the present invention, when the convex terminal portion and the concave terminal portion are fitted, the housing abuts against a flange portion of the protective cover, or the protective cover is the housing. Since the circuit board and the resin sealing portion are positioned and fixed by the housing recess, the shapes of the housing and the protective cover can be simplified.

  According to the sixth feature of the present invention, when the convex terminal portion is protected by the protective cover, and when the convex terminal portion and the concave terminal portion are fitted, in either case, the Since the fourth engaging portion and the fifth engaging portion are engaged, the positioning structure of the protective cover, the circuit board, and the resin sealing portion can be simplified.

It is a perspective view of the electronic circuit device which constitutes the electronic circuit connection structure concerning a 1st embodiment. It is sectional drawing along the II-II line of FIG. It is a disassembled perspective view of the electronic circuit connection structure which concerns on 1st Embodiment. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is a side view of the electronic circuit device which constitutes the electronic circuit connection structure concerning a 2nd embodiment. It is a side view which shows the state which removed the circuit board and the resin sealing part from the protective cover about the electronic circuit device of FIG. It is sectional drawing along the VII-VII line of FIG. It is a side view which shows the state which accommodates a circuit board and a resin sealing part in a protective cover about the electronic circuit device of FIG. 6 is a side view showing a state in which a circuit board and a resin sealing portion are accommodated in a protective cover in the electronic circuit device of FIG. It is sectional drawing of the electronic circuit connection structure which concerns on 2nd Embodiment. It is sectional drawing which shows the 1st modification of the electronic circuit connection structure which concerns on 2nd Embodiment. It is sectional drawing which shows the 2nd modification of the electronic circuit connection structure which concerns on 2nd Embodiment. It is the side view which illustrated the case where the electrical equipment arrangement structure concerning this embodiment (electronic circuit connection structure concerning a 3rd embodiment) is applied to a motorcycle. It is the side view which expanded and illustrated the electrical equipment arrangement structure of FIG. It is sectional drawing along the XV-XV line | wire of FIG. It is sectional drawing along the XVI-XVI line of FIG. It is sectional drawing which shows the arrangement | positioning location of the electrical equipment arrangement | positioning structure of FIG. It is sectional drawing which shows the arrangement | positioning location of the electrical equipment arrangement | positioning structure of FIG.

  The present invention will be described in detail below with reference to the accompanying drawings.

[Description of Electronic Circuit Connection Structure According to First Embodiment]
The electronic circuit connection structure 10A according to the first embodiment will be described with reference to FIGS.

  The electronic circuit connection structure 10 </ b> A includes an electronic circuit device 12 and an electronic circuit connection device 14.

  The electronic circuit device 12 is an ECU (Electronic Control Unit) as an electrical component of a vehicle such as a motorcycle. The electronic circuit device 12 includes a circuit board 18 such as a printed board on which various electronic components 16 are mounted.

  A convex terminal portion 20 that functions as a so-called card edge connector is provided at a location on the Y1 direction side of the rectangular circuit board 18. The convex terminal portion 20 is formed by arranging a plurality of connection terminals 22 such as conductive foils at predetermined intervals on the front and back surfaces (surfaces in the Z1 direction and Z2 direction) of the Y1 direction portion of the circuit board 18. .

  Portions of the circuit board 18 other than the convex terminal portions 20 and the respective electronic components 16 are sealed by a resin sealing portion 24. That is, by using transfer molding in which the circuit board 18 on which each electronic component 16 is mounted is placed in upper and lower molds (not shown) and the heated resin is poured into the mold and cured, the resin sealing portion 24 is used. Can be formed.

  Therefore, of the four side surfaces of the resin sealing portion 24, the convex terminal portion 20 extends from the resin sealing portion 24 in the Y1 direction on the side surface in the Y1 direction and is exposed to the outside. Further, due to the dividing line by the upper and lower molds, a parting line 26 extending in the X direction or the Y direction is formed on each side surface of the resin sealing portion 24. Furthermore, a convex portion 28 (fourth engagement portion) is provided at a substantially center on the upper surface (surface in the Z1 direction) of the resin sealing portion 24.

  The convex terminal portion 20 is protected from the outside by being covered with a resin protective cover 30. The protective cover 30 is formed with a concave portion 32 (protective concave portion) that covers the convex terminal portion 20 and can be fitted with the resin sealing portion 24 along the Y direction.

  A flange portion 36 extending in the X direction and the Z direction is formed on the bottom 34 side of the recess 32 in the protective cover 30. Further, a sealing member 38 such as an O-ring is mounted on the outer peripheral surface of the protective cover 30 so as to contact the flange portion 36. Furthermore, an engagement hole 40 (fifth engagement portion) that engages with the convex portion 28 is provided on the upper surface of the protective cover 30.

  Here, when protecting the convex terminal part 20 with the protective cover 30, the protective cover 30 is moved to a Y2 direction in the state which the convex terminal part 20 and the recessed part 32 were made to oppose. Thereby, first, the recessed part 32 and the resin sealing part 24 fit. When the protective cover 30 is further moved in the Y2 direction, the convex portion 28 and the engagement hole 40 are engaged, and the tip of the convex terminal portion 20 abuts against the bottom 34 of the concave portion 32.

  As a result, as shown in FIG. 2, the convex terminal portion 20 is covered and protected by the protective cover 30 and is positioned and fixed at a predetermined position in the concave portion 32. Further, a part of the resin sealing portion 24 (the circuit board 18 covered with) is in a state protruding from the protective cover 30 in the Y2 direction, as shown in FIGS. Therefore, the user or worker can easily carry the electronic circuit device 12 in the state shown in FIGS. 1 and 2.

  Further, in the state shown in FIGS. 1 and 2, when the user or the operator pulls the protective cover 30 in the Y1 direction while pressing a part of the resin sealing portion 24 protruding in the Y2 direction, it engages with the convex portion 28. The engagement state with the hole 40 is released, and the protective cover 30 can be removed from the resin sealing portion 24. As a result, the convex terminal portion 20 is exposed to the outside.

  3 and 4, when the protective cover 30 is reversed along the Y direction from the state of FIGS. 1 and 2, the recessed portion 32 of the reversed protective cover 30 and the Y2 of the resin sealing portion 24 are provided. The side surface in the direction (the side surface opposite to the side surface on which the convex terminal portion 20 is provided) is in a facing state. When the protective cover 30 is moved in the Y1 direction in this state, the concave portion 32 and the Y2 direction portion of the resin sealing portion 24 are fitted. When the protective cover 30 is further moved in the Y1 direction, the convex portion 28 engages with the engaging hole 40, and the side surface in the Y2 direction of the resin sealing portion 24 abuts against the bottom 34 of the concave portion 32.

  As a result, the Y2 direction portion of the resin sealing portion 24 is covered with the protective cover 30, and the Y1 direction portions of the convex terminal portion 20 and the resin sealing portion 24 are externally extended along the Y1 direction from the protective cover 30. Will be exposed.

  On the other hand, the electronic circuit connection device 14 has a rectangular housing 42 made of resin. The housing 42 is formed with a concave portion 44 (accommodating concave portion) for accommodating a portion other than the flange portion 36 in the electronic circuit device 12 along the Y direction.

  A concave terminal portion 48 of a female terminal that can be fitted with the convex terminal portion 20 as a male terminal is provided on the bottom 46 of the concave portion 44. That is, the concave terminal portion 48 includes a plurality of extending portions 50 that extend from the bottom 46 along the Y direction (the Y2 direction in FIG. 4) and a plurality of conductor foils or the like that are provided so as to face each other at the extending portion 50. Connection terminal 52. In this case, the concave terminal portion 48 has the same number of connection terminals 52 as the connection terminals 22 of the convex terminal portion 20.

  A bulging portion 54 that bulges in the Y1 direction is provided on a side surface of the housing 42 in the Y1 direction, and a concave portion 56 is formed in the bulging portion 54 along the Y direction. A connector 60 of a wiring portion 58 branched from a wire harness (not shown) is inserted into the recess 56.

  The wiring portion 58 includes a connector 60 that includes a rubber sheet that absorbs vibrations and shocks, and electric wires 62 that are drawn from the connector 60 and have the same number of wires as the connection terminals 22 and 52. When the connector 60 is inserted into the recess 56, each electric wire 62 is electrically connected to the connection terminal 52 that extends in the Y direction in the housing 42 and is exposed to the recess 56. Moreover, each electric wire 62 is coat | covered with the insulation coating 64, and is bundled as a bundle with a wire harness.

  Here, when the convex terminal portion 20 is exposed to the outside and the Y2 direction portion of the resin sealing portion 24 is fitted in the concave portion 32 of the protective cover 30, the convex terminal portion 20 and the housing 42 When the housing 42 is moved in the Y2 direction with the recess 44 facing, the Y1 direction portions of the convex terminal portion 20 and the resin sealing portion 24 are accommodated in the recess 44, and the recess 44 and the protective cover. 30 outer peripheral surfaces are fitted. When the housing 42 is further moved in the Y2 direction in this state, the tip of the housing 42 in the Y2 direction hits the flange portion 36, and the convex terminal portion 20 and the concave terminal portion 48 are fitted.

  In this case, a seal member 38 is disposed on the flange portion 36 side of the outer peripheral surface of the protective cover 30, while a groove 66 for receiving the seal member 38 is formed at the tip of the housing 42. Therefore, the sealing member 38 is accommodated in the groove 66 by the abutment of the housing 42 against the flange portion 36 and seals the gap between the flange portion 36 and the outer peripheral surface of the protective cover 30 and the housing 42. In this way, the flange portion 36 and the housing 42 are coupled, and the seal member 38 seals the gap, so that water and mud enter the electronic circuit connection structure 10A from the outside through the gap. Can be prevented.

  On the other hand, when the convex terminal portion 20 and the concave terminal portion 48 are fitted, each connection terminal 22 of the convex terminal portion 20 and each connection terminal 52 of the concave terminal portion 48 are electrically connected to each other. The If the connector 60 is inserted into the concave portion 56 of the bulging portion 54, each connection terminal 22 of the convex terminal portion 20 is electrically connected to each electric wire 62 via each connection terminal 52 of the concave terminal portion 48. Will be connected to.

  Further, when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the tip of the extending portion 50 in the Y2 direction hits the side surface of the resin sealing portion 24 in the Y1 direction. Further, as described above, when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the concave portion 44 of the housing 42 and the outer peripheral surface of the protective cover 30 are fitted, and the tip of the housing 42 is a flange portion. The gap between the housing 42 and the flange 36 and the outer peripheral surface of the protective cover 30 is sealed by the seal member 38. Accordingly, the electronic circuit device 12 is positioned and fixed at a predetermined position in the internal space of the electronic circuit connection structure 10 </ b> A formed by the electronic circuit connection device 14 and the protective cover 30.

  As described above, according to the electronic circuit connection structure 10A according to the first embodiment, the convex terminal portion 20 and the concave terminal portion 48 are connected (fitted) as in transporting the electronic circuit device 12. In a state where it is not, the protective cover 30 protects the convex terminal portion 20 by accommodating it in the concave portion 32. On the other hand, the protective cover 30 is used as a connection member that fits the housing 42 in a state where the convex terminal portion 20 and the concave terminal portion 48 are fitted.

  Thereby, simplification of the entire electronic circuit connection structure 10A including the electronic circuit device 12 can be achieved while effectively using the protective cover 30 that is unnecessary when the convex terminal portion 20 and the concave terminal portion 48 are fitted together. Can do.

  Further, in the manufacturing process of the protective cover 30, it is easy to prevent the parting line from being formed on the outer peripheral surface of the protective cover 30 on which the seal member 38 is disposed. Therefore, in the protective cover 30, the outer peripheral surface on which the seal member 38 is disposed can be formed flat. As a result, when the protective cover 30 and the housing 42 are fitted together when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the gap between the protective cover 30 and the housing 42 is reliably sealed by the seal member 38. . As a result, the waterproofness of the electronic circuit connection structure 10A can be improved.

  Thus, since the said clearance gap is reliably sealed by the sealing member 38, the waterproofness of 10 A of electronic circuit connection structures is ensured, without relying on the resin mold (resin sealing part 24) with respect to electronic circuit devices 12, such as ECU. be able to. Further, since the electronic circuit device 12 (each electronic component 16 and the circuit board 18 constituting the electronic circuit device 12) is reliably accommodated in the internal space of the electronic circuit connection structure 10A, vibration resistance can be ensured.

  That is, in the electronic circuit connection structure 10 </ b> A, the protective cover 30 used for transporting the electronic circuit device 12 is fitted to the resin sealing portion 24 and coupled to the housing 42. While ensuring waterproofness and vibration resistance, it can be effectively used as a protective cover for protecting the circuit board 18.

  In the first embodiment, the case where the seal member 38 is provided on the outer peripheral surface of the protective cover 30 has been described. However, if the gap between the protective cover 30 and the housing 42 can be reliably sealed, the housing 42 is provided. Needless to say, a seal member 38 may be provided at the tip.

  Further, the protective cover 30 is always coupled to the circuit board 18 and the resin sealing portion 24 constituting the electronic circuit device 12. Therefore, there is no worry of losing the protective cover 30. Further, during the maintenance of the electronic circuit device 12, the convex terminal portion 20 can be reliably protected by covering the convex terminal portion 20 with the protective cover 30.

  As described above, according to the first embodiment, the electronic circuit connection structure 10 </ b> A has the above-described configuration, so that waterproofness can be ensured even if the parting line 26 is formed in the resin sealing portion 24. At the same time, the protective cover 30 can be easily stored and managed.

  Further, when the convex terminal portion 20 and the concave terminal portion 48 are fitted together, the circuit board 18 and the resin sealing portion 24 are formed by the concave portion 44 and the protective cover 30 by the housing 42 abutting against the flange portion 36. It is positioned and fixed in the internal space of the electronic circuit connection structure 10A. Thereby, the shape of the housing 42 and the protective cover 30 can be simplified.

  Further, when the convex terminal portion 20 is protected by the protective cover 30 and when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the convex portion provided in the resin sealing portion 24 is either case. Since the portion 28 and the engagement hole 40 formed in the protective cover 30 are engaged, the positioning structure of the protective cover 30, the circuit board 18, and the resin sealing portion 24 can be simplified.

  Further, since the convex terminal portion 20 is configured as a so-called card edge connector in which the connection terminal 22 is formed at the edge portion of the circuit board 18, the convex terminal portion 20 is thinned, and the entire electronic circuit device 12 is formed. Can be miniaturized.

[Description of Electronic Circuit Connection Structure According to Second Embodiment]
Next, an electronic circuit connection structure 10B according to a second embodiment will be described with reference to FIGS. Note that in the electronic circuit connection structure 10B according to the second embodiment, the same components as those in the electronic circuit connection structure 10A (see FIGS. 1 to 4) according to the first embodiment are denoted by the same reference numerals, and the details thereof are described. This description is omitted, and the same applies hereinafter.

  In the electronic circuit connection structure 10B according to the second embodiment, when the convex terminal portion 20 and the concave terminal portion 48 are fitted together, the protective cover 30 causes the circuit board 18 and the resin sealing portion 24 to be entirely recessed into the concave portion 32. It differs from the electronic circuit connection structure 10A according to the first embodiment in that it is accommodated. Therefore, in the second embodiment, when the convex terminal portion 20 is protected by the protective cover 30 in a state where the electronic circuit device 12 and the electronic circuit connecting device 14 are separated, the convex terminal portion 20 and the concave terminal portion 48 are In any case, the convex terminal portion 20 is covered and protected by the protective cover 30.

  As shown in FIGS. 5 to 7, on each side surface of the resin sealing portion 24 in the X1 direction and the X2 direction, a protruding portion 70 (third engagement portion) extending along the Y direction is a parting line. 26 is provided at a different height position. Further, in the resin sealing portion 24, a concave portion 72 (fitting concave portion) is formed at the center of the side surface opposite to the side surface on which the convex terminal portion 20 is provided (the side surface in the Y2 direction in FIGS. 5 and 6). Has been.

  On the other hand, in the recess 32 of the protective cover 30, two grooves 74 (first engagement portions) are formed along the Y direction on the inner walls in the X1 direction and the X2 direction at the same height position. Further, the other two grooves 76 (second engaging portions) are formed along the Y direction at the height positions lower than the two grooves 74 on the inner walls in the X1 direction and the X2 direction of the concave portion 32, respectively. ing.

  In this case, the two grooves 74 provided at a high position (the height position on the Z1 direction side) of each inner wall are along the Y1 direction as the insertion direction of the circuit board 18 and the resin sealing portion 24 with respect to the recess 32. It is formed as a relatively shallow groove. On the other hand, the other two grooves 76 provided at a low position (the height position on the Z2 direction side) of each inner wall are formed as relatively deep grooves along the Y1 direction as the insertion direction. That is, the two grooves 76 extend to the vicinity of the bottom 34 of the recess 32 as compared with the two grooves 74.

  Further, a projection 78 projecting in the Y2 direction is formed at the center of the bottom 34 of the recess 32.

  Here, when protecting the convex terminal part 20 with the protective cover 30, as shown in FIG. 6, the convex terminal part 20 and the recessed part 32 are made to oppose, and the protrusion part 70 is Z1 rather than the parting line 26. The protective cover 30 is moved in the Y2 direction in a state where the circuit board 18 and the resin sealing portion 24 are arranged so as to be in the direction positions. As a result, the two protruding portions 70 engage with the two grooves 74 formed on the Z1 direction side of the inner wall, and the circuit board 18 and the resin sealing portion 24 are positioned in the X direction and the Z direction.

  In this state, when the protective cover 30 is further moved in the Y2 direction, each protrusion 70 slides along each groove 74, so that the protective cover 30 can be smoothly moved in the Y2 direction. Then, as shown in FIG. 5, the protrusions 70 come into contact with the bottoms of the respective grooves 74 in the Y1 direction, so that the convex terminal portions 20 and the resin sealing portion 24 in the Y1 direction are accommodated in the recesses 32. At the same time, the circuit board 18 and the resin sealing portion 24 are positioned in the Y direction. Further, the Y2 direction portion of the resin sealing portion 24 protrudes from the protective cover 30 in the Y2 direction and is exposed to the outside.

  In the state shown in FIG. 5, when the user or an operator pulls the protective cover 30 in the Y1 direction while pressing a part of the resin sealing portion 24 protruding in the Y2 direction, as shown in FIG. The protective cover 30 can be removed from the resin sealing part 24 and the resin sealing part 24, and the convex terminal part 20 is exposed to the outside.

  In addition, in the state of FIG. 6, when the circuit board 18 and the resin sealing portion 24 are turned upside down and horizontally turned along the Y direction, as shown in FIG. The concave portion 32 of the cover 30 faces the projecting portion 70 at a position lower than the parting line 26.

  When the protective cover 30 is moved in the Y2 direction in this state, each protrusion 70 engages with the other two grooves 76 formed on the Z2 direction side of the inner wall. Thereby, the circuit board 18 and the resin sealing portion 24 are positioned in the X direction and the Z direction.

  When the protective cover 30 is further moved in the Y2 direction, each protrusion 70 slides along each groove 76, so that the protective cover 30 can be smoothly moved in the Y2 direction. As described above, the other two grooves 76 are formed deeper in the Y1 direction than the two grooves 74. Therefore, as shown in FIG. 9, each protrusion 70 is located at the bottom of each groove 76 in the Y1 direction. When hitting, the recess 72 and the protrusion 78 are fitted, and the side surface of the resin sealing portion 24 on the recess 72 side hits the bottom 34 of the recess 32.

  As a result, the circuit board 18 and the resin sealing portion 24 are positioned at the center position of the plane in the X direction and the Z direction in the recess 32. Moreover, the circuit board 18 and the resin sealing part 24 are entirely accommodated in the recessed part 32 because each projecting part 70 abuts against the bottom of each groove 76 in the Y1 direction.

  In addition, as shown in FIG. 10, if the recessed part 80 is provided in the outer peripheral surface of the resin sealing part 24, and the projection part 82 engaged with this recessed part 80 is provided in the inner wall of the recessed part 32, the recessed part 72 and the projection part 78 will be provided. And the protrusion 82 and the recess 80 engage with each other when the side surface on the recess 72 side of the resin sealing portion 24 abuts against the bottom 34 of the recess 32. Thereby, the protrusion 82 and the recess 80 function as a lock mechanism for preventing the circuit board 18 and the resin sealing portion 24 from coming out of the recess 32.

  On the other hand, in the second embodiment, in the electronic circuit connecting device 14, the housing 42 and the connector 60 are integrally configured. That is, the bulging portion 54 of the housing 42 is configured as the connector 60. However, in the second embodiment, the bulging portion 54 that is the connector 60 is configured as a flange portion that bulges in the Z direction with respect to the housing 42, and there is a step between the housing 42 and the bulging portion 54. Is formed.

  The location on the bottom 46 side of the housing 42 functions as an extending portion 50 that constitutes the concave terminal portion 48. In addition, the concave portion 44 of the connection terminal 52 is formed in a leaf spring shape that can contact the convex terminal portion 20 along the inner wall of the housing 42. Further, the groove 66 for accommodating the seal member 38 is formed on the Y2 direction side on the outer peripheral surface of the housing 42, and the seal member 38 is previously accommodated in the groove 66.

  Here, as shown in FIG. 10, when the circuit board 18, the convex terminal portion 20, and the resin sealing portion 24 are entirely covered and protected by the concave portion 32 of the protective cover 30 as shown in FIG. When the housing 42 is moved in the Y2 direction with the housing 42 and the recess 32 of the protective cover 30 facing each other, the recess 32 and the outer peripheral surface of the housing 42 are fitted.

  In this case, since the seal member 38 is disposed in the groove 66 on the outer peripheral surface of the housing 42, the seal member 38 is connected to the protective cover 30 and the housing 42 by fitting the outer peripheral surface of the housing 42 and the recess 32. Seal the gap. Thereby, it is possible to prevent water and mud from entering the electronic circuit connection structure 10B from the outside through the gap.

  When the housing 42 is further moved in the Y2 direction, the concave portion 44 of the housing 42 and the outer peripheral surface of the resin sealing portion 24 are fitted. That is, the housing 42 is sandwiched between the inner wall of the recess 32 and the outer peripheral surface of the resin sealing portion 24. Thereby, the sealing performance with respect to the clearance gap between the protective cover 30 and the housing 42 by the sealing member 38 can be improved.

  When the housing 42 is further moved in the Y2 direction in this state, the bulging portion 54 (connector 60) hits the tip of the protective cover 30 in the Y1 direction, and the convex terminal portion 20 and the concave terminal portion 48 are fitted. . Thereby, each connection terminal 22 of the convex terminal part 20 and each connection terminal 52 of the concave terminal part 48 are electrically connected, respectively. That is, each connection terminal 22 is electrically connected to each electric wire 62 via each connection terminal 52. In addition, since the bulging portion 54 and the protective cover 30 are coupled, the sealing member 38 reliably seals the gap, so that the electronic circuit connection structure 10B can be externally connected to the inside of the electronic circuit connection structure 10B. Water and mud can be effectively prevented from entering.

  In addition, the convex terminal portion 20 and the concave terminal portion 48 are fitted, and the bulging portion 54 (connector 60) abuts against the tip of the protective cover 30 in the Y1 direction, so that the electronic circuit device 12 is an electronic circuit connecting device. 14 and the protective cover 30 are positioned and fixed at a predetermined position in the internal space of the electronic circuit connection structure 10B.

  As described above, according to the electronic circuit connection structure 10B according to the second embodiment, when the convex terminal portion 20 is protected, a part of the resin sealing portion 24 protrudes from the protective cover 30. Thereby, it becomes easy to take out the circuit board 18 and the resin sealing part 24 from the protective cover 30, and workability | operativity improves. On the other hand, when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the convex terminal portion 20 does not protrude from the protective cover 30, so that the convex terminal portion 20 can be reliably protected.

  Further, when protecting the convex terminal portion 20, at a relatively shallow position along the insertion direction (Y1 direction in FIGS. 5 and 6) of the circuit board 18 and the resin sealing portion 24 with respect to the concave portion 32 of the protective cover 30, By engaging the protruding portion 70 provided in the resin sealing portion 24 and the groove 74 formed in the inner wall of the recess 32, a part of the resin sealing portion 24 can be protruded from the protective cover 30 to the outside. it can.

  On the other hand, when the convex terminal portion 20 and the concave terminal portion 48 are fitted together, the circuit board 18, the convex portion is formed by engaging the protruding portion 70 and the groove 76 at a relatively deep position along the insertion direction. The mold terminal portion 20 and the resin sealing portion 24 can be prevented from projecting from the protective cover 30 as a whole. As a result, the electronic circuit connection structure 10B can have a simpler configuration.

  As described above, the protruding portion 70 is inserted into the grooves 74 and 76 having different depths when the convex terminal portion 20 is protected and when the convex terminal portion 20 and the concave terminal portion 48 are fitted. Therefore, it is possible to achieve the reverse assembly preventing effect of avoiding accidentally inserting the protruding portion 70 into a different groove. In any case, since the protrusions 70 are engaged with the grooves 74 and 76, the circuit board 18 and the resin sealing part 24 can be prevented from rattling with respect to the protective cover 30.

  Further, if the protrusion 78 provided on the bottom 34 of the recess 32 and the recess 72 provided on the resin sealing portion 24 are fitted, the circuit board 18, the convex terminal portion 20, and the resin sealing portion 24 are The protective cover 30 is disposed on the central axis (the axis parallel to the Y direction and passing through the central positions of the planes in the X direction and the Z direction) along the insertion direction. Thereby, the alignment of the protective cover 30 and the housing 42 when fitting the convex terminal portion 20 and the concave terminal portion 48 and the alignment of the convex terminal portion 20 and the concave terminal portion 48 are facilitated. It can be carried out.

  Further, when the convex terminal portion 20 and the concave terminal portion 48 are fitted, the tip of the protective cover 30 abuts against the bulging portion 54 (connector 60) of the housing 42, so that the circuit board 18, the convex terminal portion 20 and the resin sealing portion 24 are positioned and fixed in the recess 44, so that the shapes of the housing 42 and the protective cover 30 can be further simplified.

  Further, the circuit board 18 and the resin sealing part 24 are locked from the protective cover 30 by locking the circuit board 18 and the resin sealing part 24 to the protective cover 30 by using a lock mechanism constituted by the recess 80 and the protrusion 82. Can be prevented from coming off. Therefore, when a failure or the like occurs in the circuit board 18, the protective cover 30 may be replaced.

  The electronic circuit connection structure 10B according to the second embodiment is the same as the electronic circuit connection structure 10A according to the first embodiment except for the above-described points. Of course, the same effect as that of the structure 10A can be obtained.

  Further, the electronic circuit connection structure 10B according to the second embodiment is not limited to the above description, and may be configured as in the first modified example of FIG. 11 and the second modified example of FIG.

  In the first modification shown in FIG. 11, the housing 42 is formed thin, and is separated from the inner wall of the recess 32 and the outer peripheral surface of the resin sealing portion 24. Further, a seal member 38 is attached to the tip of the thin housing 42 in the Y2 direction, and the seal member 38 is in contact with the inner wall of the recess 32 and the outer peripheral surface of the resin sealing portion 24. Therefore, in the first modified example, the thin housing 42 is indirectly engaged with the inner wall of the recess 32 and the outer peripheral surface of the resin sealing portion 24 via the seal member 38.

  In this case, when the housing 42 is moved in the Y2 direction, the tip of the housing 42 presses the seal member 38 in the Y2 direction. Thereby, the clearance gap between the protective cover 30 and the housing 42 is sealed in the front-end | tip of the housing 42, and it can prevent that water and mud enter | penetrate into the inside of the electronic circuit connection structure 10B via the said clearance gap from the outside. . Further, since the thin housing 42 is indirectly engaged with the inner wall of the concave portion 32 and the outer peripheral surface of the resin sealing portion 24 via the seal member 38, even in this case, the inside of the electronic circuit connection structure 10B It is possible to position and fix the electronic circuit device 12 in space.

  In the second modification shown in FIG. 12, the seal member 38 is disposed on the bottom 34 side of the recess 32, and the recess 80 and the protrusion 82 (see FIG. 10) are not provided. In this case, when the housing 42 is moved in the Y2 direction, the tip of the housing 42 presses the seal member 38 in the Y2 direction. As a result, the gap between the protective cover 30 and the housing 42 is sealed at the tip of the housing 42. As a result, it is possible to prevent water and mud from entering the electronic circuit connection structure 10B from the outside through the gap. Even in this case, the thin housing 42 is indirectly engaged with the inner wall of the recess 32, the bottom 34, and the outer peripheral surface of the resin sealing portion 24 via the seal member 38, so that the electronic circuit connection structure 10B. The electronic circuit device 12 can be positioned and fixed in the internal space.

  Further, in the first and second modified examples of FIGS. 11 and 12, the circuit board 18 and the resin sealing portion 24 are held in the protective cover 30 in a tight state by the sealing member 38. 18 and the resin sealing portion 24 can be prevented from being detached. Even in this case, when a failure or the like occurs in the circuit board 18, the protective cover 30 may be replaced.

[Description of Electronic Circuit Connection Structure According to Third Embodiment (Electrical Component Arrangement Structure According to This Embodiment)]
Next, an electrical component arrangement structure 90 according to this embodiment, which is also an electronic circuit connection structure 10C according to the third embodiment, will be described with reference to FIGS.

  The electrical component arrangement structure 90 (electronic circuit connection structure 10C) according to the present embodiment is applied to the motorcycle 92. In the electrical component arrangement structure 90, the protective cover 30 may be omitted.

  Here, a motorcycle 92 on which the electrical component arrangement structure 90 is mounted will be described with reference to FIG. In FIG. 13, the front-rear and left-right directions indicated by the arrows will be described according to the direction seen from the driver who is a passenger seated on the vehicle body unless otherwise specified.

  A scooter type motorcycle 92 shown in FIG. 13 has a body frame 94. The vehicle body frame 94 includes a head pipe 96 at the front end, a pair of left and right main frames 98 coupled to the head pipe 96, and a cross pipe 100 that extends in the vehicle width direction (left and right direction) and is provided at the rear portion of the main frame 98. And a pair of left and right rear frames 102 connected to the cross pipe 100.

  A front fork 104 that supports the front wheel WF and a handle 106 are supported on the head pipe 96 so as to be steerable. The main frame 98 includes a down frame portion 108 inclined downward from the head pipe 96 and a lower frame portion 110 extending rearward substantially horizontally from the rear end of the down frame portion 108. The rear frame 102 is inclined upward and backward from the cross pipe 100 and extends upward, and is inclined upward and backward from the upper end of the rising frame portion 112 at a gentler inclination angle than the rising frame portion 112. And a seat rail portion 114 extending rearward.

  A bracket 116 is provided below the rising frame portion 112, and one end of a link 120 is connected to the bracket 116 via a shaft 118. The other end of the link 120 is connected to a hanger part 124 via a shaft 122, and the hanger part 124 is connected to a unit swing type power unit 126. As a result, the power unit 126 is supported by the vehicle body frame 94 so as to be swingable while being able to swing vertically. The rear wheel WR is pivotally supported on the rear portion of the power unit 126. A rear cushion unit 128 is provided between the rear part of the seat rail 114 of the left rear frame 102 and the rear part of the power unit 126 of the pair of left and right rear frames 102.

  A storage box 130 (storage portion) is supported between the front portions of the pair of left and right rear frames 102. A tandem type riding seat 132 that covers the storage box 130 from above is supported at the front upper portion of the storage box 130 so as to be openable and closable. A fuel tank 134 supported by the rear frame 102 is disposed behind the storage box 130 so as to be covered with the riding seat 132.

  The vehicle body frame 94, a part of the power unit 126, the storage box 130 and the fuel tank 134 are covered with a vehicle body cover 136. That is, the vehicle body cover 136 has a leg shield 138 that covers the occupant's feet seated on the riding seat 132 from the front. Between the lower part of the leg shield 138 and the power unit 126, a step floor 140 on which a passenger sitting on the riding seat 132 places his / her foot is arranged. A pair of left and right skirt portions 142 hang down from the left and right sides of the step floor 140. Thereby, the lower frame part 110 in the main frame 98 is covered from the side and the lower side by the under cowl 144 including the skirt part 142.

  Further, a wire harness 146 extends along the rear frame 102 (the rising frame portion 112 and the seat rail portion 114 constituting the body frame 94). As shown in FIGS. 13 to 16, the wire harness 146 electrically connects a battery (not shown) of the motorcycle 92, the power unit 126, and the like, and a bundle of a plurality of electric wires 62 covered with an insulating coating 64. The tube 148 is made of an adhesive tape or rubber having electrical insulation. Therefore, the wire harness 146 has flexibility.

  The wire harness 146 is supported at predetermined positions of the rising frame portion 112 and the seat rail portion 114 by being tightened by a plurality of clamp members 150 that function as binding bands. 15 and 16, the illustration of the insulating coating 64 that covers each electric wire 62 that passes through the tube 148 is omitted.

  And the electrical equipment arrangement | positioning structure 90 which concerns on this embodiment is being fixed to the wire harness 146 supported by the standing | starting-up frame part 112 and the seat rail part 114, as shown in FIGS. In this case, as shown in FIG. 17, the rising frame portion 112 and the seat rail portion 114 are arranged in a space covered with the storage box 130 and the vehicle body cover 136. Accordingly, the wire harness 146 supported by the rising frame portion 112 and the seat rail portion 114 and the electrical component arrangement structure 90 fixed to the wire harness 146 are also within the space covered by the storage box 130 and the vehicle body cover 136. Has been placed.

  Specifically, the electrical component arrangement structure 90 is connected to the binding member 152 (engagement portion) attached to the wire harness 146, the electronic circuit connection device 14 connected to the binding member 152, and the electronic circuit connection device 14. And an electronic circuit device 12 which is an electrical component such as an ECU.

  The binding member 152 includes a band portion 154 that functions as a binding band for tightening the wire harness 146 and an insertion portion 156 that is connected to the band portion 154.

  The electronic circuit connection device 14 is different from the electronic circuit connection device 14 (see FIGS. 1 to 12) of the electronic circuit connection structures 10A and 10B according to the first and second embodiments in the following points. That is, a recess 158 (insertion recess) into which the insertion portion 156 is inserted is formed on the left side portion of the housing 42 constituting the electronic circuit connection device 14. The housing 42 is a female housing arranged along the vertical direction so that the concave portion 44 opens downward. Further, a seal member 38 is disposed below the inner wall of the recess 44. Furthermore, the wiring part 58 branches from the wire harness 146 and is connected to the upper part of the housing 42. Therefore, the connection terminal 52 of the concave terminal portion 48 provided on the upper portion of the housing 42 is electrically connected to the plurality of electric wires 62 branched from the wire harness 146 via the connector 60.

  As described above, the electronic circuit device 12 is different from the electronic circuit device 12 of the electronic circuit connection structures 10A and 10B according to the first and second embodiments in that it does not have the protective cover 30.

  In this case, when the electronic circuit device 12 is moved upward and inserted into the concave portion 44 with the convex terminal portion 20 as a male terminal facing upward and facing the concave portion 44 of the housing 42, the convex terminal portion 20 and the recessed terminal portion 48 are fitted together, and the resin sealing portion 24 is held between the housing 42 via the seal member 38. Thereby, each connection terminal 22 of the convex terminal portion 20 is electrically connected to each electric wire 62 of the wire harness 146 via each connection terminal 52 of the concave terminal portion 48. Further, since the sealing member 38 seals the gap between the sealing member 38 and the resin sealing portion 24, it is possible to prevent water and mud from entering the concave portion 44 from the outside.

  The arrangement positions of the wire harness 146 and the electrical component arrangement structure 90 (electronic circuit connection structure 10C) with respect to the rising frame part 112 and the seat rail part 114 are not limited to the positions shown in FIGS. If intrusion of water or mud can be avoided, it may be arranged at the position shown in FIG. FIG. 18 illustrates a case where the wire harness 146 and the electrical component arrangement structure 90 are arranged on the bottoms of the rising frame part 112 and the seat rail part 114.

  In the electrical component arrangement structure 90 according to the present embodiment, the concave portion 44 of the housing 42 opens downward and the electronic circuit device 12 is inserted from below so that water and mud are not easily collected. Further, the recess 44 has a certain width compared to the electronic circuit device 12. Therefore, the housing 42 can hold the electronic circuit device 12 even if the resin sealing portion 24 of the electronic circuit device 12 is formed in a tapered shape along the vertical direction.

  As described above, according to the electrical component arrangement structure 90 (the electronic circuit connection structure 10C according to the third embodiment) according to the present embodiment, the convex terminal portion 20 of the electronic circuit device 12 is connected to the edge of the circuit board 18. It is configured as a so-called card edge connector in which connection terminals 22 are formed in the part. Thereby, the convex terminal part 20 can be thinned and the whole electronic circuit device 12 can be reduced in size. As a result, the electronic circuit device 12 can be fixed to the wire harness 146 via the electronic circuit connection device 14 and the binding member 152.

  Further, since the wire harness 146 has flexibility, the rear frame 102 can absorb vibration generated in the wire harness 146 by supporting the wire harness 146 on the rear frame 102 of the vehicle body frame 94. Therefore, if the electronic circuit device 12 is fixed to the wire harness 146, vibration transmitted to the electronic circuit device 12 due to the vibration isolation effect of the wire harness 146 can be reduced.

  Thus, according to the electrical component arrangement structure 90 according to the present embodiment, it is possible to secure an arrangement space for the electronic circuit device 12 while reducing vibrations generated in the electronic circuit device 12 such as an ECU. The degree of freedom in the layout of the circuit device 12 can be increased.

  Further, conventionally, since the female housing is relatively small, while the ECU and the connector are large and heavy, it is impossible to fix the female housing, the ECU, and the connector to the wire harness 146 having a vibration isolation effect. It was.

  On the other hand, in the electrical component arrangement structure 90 according to the present embodiment, the housing 42 is larger in size than the electronic circuit device 12 because the electronic circuit device 12 is accommodated in the recess 44. Therefore, it is easy to secure a mounting space for the binding member 152 with respect to the housing 42. Further, as described above, since the electronic circuit device 12 is thinned, the electronic circuit device 12 and the connector 60 can be reduced in weight. As a result, the electronic circuit connecting device 14 and the bundling member 152 can be easily fixed to the wire harness 146.

  Further, since the wiring portion 58 is branched from the wire harness 146 and connected to the housing 42, each electric wire 62 is electrically connected to the connection terminal 52 of the concave terminal portion 48. Accordingly, the electronic circuit device 12 can be fixed to the wire harness 146 through the housing 42 and the binding member 152 in a compact space.

  Furthermore, since the housing 42 and the binding member 152 are connected by inserting the insertion portion 156 of the binding member 152 into the recess 158 of the housing 42, the electronic circuit device 12 can be easily attached to the wire harness 146. it can.

  Furthermore, since the wire harness 146 is fixed to the rear frame 102 by the plurality of clamp members 150, the vibration isolation effect can be further enhanced.

  Further, the dead space between the storage box 130 and the vehicle body cover 136 is effectively utilized as an arrangement space for the electrical component arrangement structure 90 (the electronic circuit device 12, the electronic circuit connection device 14, and the binding member 152) and the wire harness 146. Yes. This space is unlikely to splash water or mud in the motorcycle 92. Therefore, it is possible to prevent water and mud from being applied to the electronic circuit device 12 by arranging the electrical component arrangement structure 90 in such a space.

  As mentioned above, although this invention was demonstrated using suitable embodiment, the technical scope of this invention is not limited to the description range of said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. It is apparent from the description of the scope of claims that the embodiments added with such changes or improvements can also be included in the technical scope of the present invention. In addition, the reference numerals in parentheses described in the claims are appended to the reference numerals in the accompanying drawings for easy understanding of the present invention. It should not be construed as limited.

Claims (6)

In the electronic circuit connection structure (10A, 10B) for connecting the electronic circuit device (12) and the electronic circuit connection device (14),
The electronic circuit device (12) includes a circuit board (18) on which an electronic component (16) is mounted, and a resin sealing portion (24) that seals the electronic component (16) and the circuit board (18). A convex terminal part (20) that extends from a part of the circuit board (18) and is exposed from the resin sealing part (24), and a protection that houses and protects the convex terminal part (20). A protective cover (30) formed with a recess (32),
The electronic circuit connecting device (14) is provided on a housing (42) in which a housing recess (44) for housing the electronic circuit device (12) is formed, and on a bottom (46) of the housing recess (44); A concave terminal portion (48) fitted to the convex terminal portion (20), and a wiring portion (58) electrically connected to the concave terminal portion (48) and exposed to the outside of the housing (42). Have
When fitting the convex terminal part (20) and the concave terminal part (48), the protective cover (30) is removed from the convex terminal part (20) and the resin sealing part ( 24) and the housing (42),
An electronic circuit connection structure (10A, 10B), wherein a seal member (38) is disposed between the protective cover (30) and the housing (42). The electronic circuit connection structure (10B) according to claim 1,
The protective cover (30)
When protecting the convex terminal part (20), the circuit board (18) and the resin sealing part in a state where a part of the resin sealing part (24) protrudes from the protective cover (30). A first engagement portion (74) for positioning (24);
When the convex terminal part (20) and the concave terminal part (48) are fitted, at least the convex terminal part (20) is prevented from protruding outward from the protective cover (30). (18) and a second engagement portion (76) for positioning the resin sealing portion (24);
An electronic circuit connection structure (10B) characterized by comprising: In the electronic circuit connection structure (10B) according to claim 2,
The electronic circuit device (12) is formed on a side surface of the resin sealing portion (24) and is engaged with the first engagement portion (74) or the second engagement portion (76). Part (70),
The first engaging portion (74) is formed on a side surface of the protective recess (32) facing the side surface of the resin sealing portion (24), and faces the bottom (34) of the protective recess (32). By engaging the third engagement part (70) at a relatively shallow position along the insertion direction of the circuit board (18) and the resin sealing part (24), the circuit board (18) and the resin seal Positioning the stop (24),
The second engagement portion (76) is formed on a side surface of the protective recess (32) facing the side surface of the resin sealing portion (24), and the third engagement portion (76) is positioned relatively deep along the insertion direction. An electronic circuit connection structure (10B), wherein the circuit board (18) and the resin sealing portion (24) are positioned by engaging with an engaging portion (70). In the electronic circuit connection structure (10B) according to claim 3,
At the center of the bottom (34) of the protective recess (32), a protrusion (78) along the insertion direction is formed,
In the center of the bottom surface of the resin sealing portion (24) opposite to the convex terminal portion (20), a fitting concave portion (72) for fitting with the protruding portion (78) is formed. An electronic circuit connection structure (10B) characterized by the above. In the electronic circuit connection structure (10A, 10B) according to any one of claims 1 to 4,
The protective cover (30) or the housing (42) is provided with flange portions (36, 54),
When the convex terminal portion (20) and the concave terminal portion (48) are fitted, the housing (42) hits the flange portion (36) provided on the protective cover (30), or Alternatively, when the protective cover (30) abuts against the flange portion (54) provided in the housing (42), the circuit board (18) and the resin sealing portion (24) are moved into the housing recess (44). The electronic circuit connection structure (10A, 10B) characterized by being positioned and fixed in In the electronic circuit connection structure (10A) according to claim 1,
A fourth engagement portion (28) is provided on the outer peripheral surface of the resin sealing portion (24),
When the convex terminal part (20) is protected by the protective cover (30), the convex terminal part (20) and the concave terminal part (48) are fitted to the protective cover (30). In any case, in any case, the electronic circuit connection structure (10A) is further provided with a fifth engagement portion (40) that engages with the fourth engagement portion (28). ).

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