JP2006100061A - Capacitor built-in type connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a capacitor built-in type connector with simple and compact structure, capable of connecting wire side terminal to the ground through a capacitor having normal-shape. <P>SOLUTION: The capacitor 10, a grounding connection conductor 30 connecting the capacitor 10 to ground side and wire side terminal 60, and a wire connection conductor 40 are held on an insulation housing 20. Capacitor terminals 14, 16 are protruded in same direction from a main body 12 of the capacitor 10. The grounding connection conductor 30 has a grounding terminal part 32 protruding in a direction same as that of the capacitor terminals 14, 16, and a capacitor connection part 34 connected to the capacitor terminal 14. The wire connection conductor 40 has a terminal fitting part 44, protruding into a terminal insertion hole 22 formed to the insulation housing 20 in a direction reversed to that of capacitor terminals 14, 16, and fitted to he wire side terminal 60; and a capacitor connection part 42 connected to the capacitor terminal 16. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector with a built-in capacitor for connecting a grounding wire led out from an automobile wire harness or the like to the ground through a capacitor.

  In a wire harness or the like routed in an automobile, as a countermeasure against noise, an earth wire included in the wire harness is connected to an appropriate ground portion (for example, a vehicle body) via a capacitor.

  Conventionally, what is described in Patent Document 1 is known as a capacitor built-in connector for connecting a predetermined electric wire to the ground via a capacitor in this way. The outline is shown in FIGS. 10 (a) and 10 (b).

  The illustrated connector includes a wire-side terminal 200 fixed to the end of the wire D, a connector housing 210, and a terminal unit 220. The terminal unit 220 includes a relay terminal 230, a capacitor 240, and a ground connection terminal 250. Is included.

  The capacitor 240 has a shape in which a pair of terminals 242 and 244 protrude in opposite directions from the main body, and the terminals 242 and 244 are connected to the ground connection terminal 250 and the relay terminal 230, respectively. The relay terminal 230, the capacitor 240, and the ground connection terminal 250 are arranged in a straight line in the axial direction. Further, the relay terminal 244 is inserted into the cylindrical holding member 260 and is held in the member 260.

  The connector housing 210 extends in the axial direction like the terminal unit 220. A terminal housing chamber 212 into which the electric wire side terminal 200 is inserted is formed at one end of the connector housing 210, and a lance 214 that locks the electric wire side terminal 200 is formed at the back thereof. A component storage chamber 216 is formed at the other end of the housing 210.

In this connector, the terminal unit 220 is inserted into the component storage chamber 216 of the connector housing 210 from the holding member 260 side, and the holding member 260 is locked in the connector housing 210, thereby the holding member. The relay terminal 230 is held in the connector housing 210 via 260. Thereafter, the potting agent 270 (FIG. 10B) is filled in the gap between the terminal unit 220 and the inner peripheral surface of the connector housing 210 and solidifies, whereby the terminal unit 220 is fixed in the connector housing 210. In this state, by inserting the electric wire side terminal 200 into the terminal accommodating chamber 212, the electric wire side terminal 200 is fitted into the relay terminal 230 and the ground connection terminal 250 is connected via the relay terminal 230 and the capacitor 240. And is locked in the connector housing 210 by the lance 214.
JP 10-33003 A

  In the connector described in the patent document, since the ground connection terminal 250, the capacitor 240, the relay terminal 230, and the electric wire side terminal 200 are connected in a line in this order in the axial direction, Since the shaft length is large, therefore, a distance must be provided between the wire harness including the electric wire D and the ground connection portion (the portion to which the ground connection terminal 250 is fixed), and the wiring harness is arranged correspondingly. Will be subject to restrictions.

  In addition, a capacitor generally used has a shape in which a pair of terminals protrudes from the main body in the same direction. On the other hand, in order to perform the arrangement as described above, the pair of terminals 242 and 244 are opposite to each other from the capacitor main body. Therefore, a specially shaped capacitor 240 that protrudes from the center must be used, which increases the cost.

  In addition, because the components are arranged in a straight line as described above, the axial load due to the fitting and pulling of the electric wire side terminal 200 with respect to the relay terminal 230 causes the terminals 242 and 244 of the capacitor 240 and the relay terminals 230 and The relay terminal 230 is held by a dedicated holding member 260 which is a separate member from the connector housing 210 in order to easily act on the connection location with the ground connection terminal 250 and to avoid this, and then the holding member 260. Needs to be mounted in the connector housing 210.

  In view of such circumstances, the present invention provides a connector with a built-in capacitor that can connect a wire-side terminal to the ground through a simple and compact structure while using a capacitor having a normal shape. For the purpose.

  As means for solving the above-mentioned problems, the present invention has a built-in capacitor in which the first capacitor terminal and the second capacitor terminal protrude in the same direction from the capacitor body, and the wire side terminal is connected to the ground via the capacitor. A capacitor built-in connector having an insulating housing for holding the capacitor, a ground terminal connected to a ground portion, and a first capacitor connecting portion connected to the first capacitor terminal, and the first capacitor connection A ground connection conductor held by the insulating housing in a posture in which a portion can be connected to the first capacitor terminal and the ground terminal portion protrudes from the insulating housing in substantially the same direction as the two capacitor terminals; and the electric wire side terminal And a second terminal connected to the second capacitor terminal. A wire connection conductor held by the insulating housing in such a manner that the second capacitor connection portion can be connected to the second capacitor terminal and the terminal fitting portion faces away from the capacitor terminals. A terminal insertion portion in which the electric wire side terminal is inserted in a direction opposite to the direction of the two capacitor terminals, and is inserted into the terminal insertion portion. A locking portion for locking the electric wire side terminal is provided, and the electric wire side terminal inserted into the terminal insertion portion is engaged with the terminal fitting portion and is locked by the locking portion at the fitting position. It is comprised so that.

  According to this configuration, while using a capacitor having a general shape in which the first capacitor terminal and the second capacitor terminal protrude in the same direction from the capacitor body, the grounding protrudes from the insulating housing in the same direction as the protruding direction. Connect the ground terminal part of the connection conductor to the ground part, and insert the wire side terminal into the terminal insertion part of the insulating housing from the side opposite to the ground terminal part and fit the terminal fitting part of the wire connection conductor Thus, the electric wire side terminal can be electrically connected to the ground portion through a connection path in which the electric wire connection conductor, the capacitor, and the earth connection conductor are arranged in order.

  Further, since the connection path is a meandering path in which the direction of the current is reversed by the capacitor and the wire connection conductor, as described in Patent Document 1, all components are arranged in a line in the axial direction. The axial length of the connector is greatly shortened compared to the above, and the load (insertion / removal load) applied when the wire side terminal is fitted to and pulled out from the terminal fitting portion of the wire connecting conductor is the second capacitor terminal of the capacitor. It is difficult to act on the connection part between the first capacitor terminal and the first capacitor terminal and the first capacitor terminal part of the ground connection conductor. Therefore, a special holding member is used as in the prior art. Even if it does not exist, it becomes possible to hold | maintain the said wire connection conductor directly and easily to the insulated housing side against the said insertion / removal load.

  For example, the insulating housing has a press-fitting hole for a wire connecting conductor into which the second capacitor connecting portion and the terminal fitting portion of the electric wire connecting conductor are press-fitted from the same side. It is also possible to adopt a configuration in which the two-capacitor connecting portion and the terminal fitting portion are fixed, whereby the structure can be further simplified and the assembling work can be facilitated.

  Furthermore, the electric wire connecting conductor has a connecting portion that connects the second capacitor connecting portion and the terminal fitting portion in a direction substantially orthogonal to the direction of the terminal fitting portion, and the connecting portion is the insulating housing. If the second capacitor connecting portion and the terminal fitting portion are press-fitted into the press-fitting hole to the position where they abut against the side surface of the second capacitor connecting portion, the second capacitor connecting portion is brought into contact with the side surface of the insulating housing. And positioning of a terminal fitting part can be performed reliably.

  The insulating housing has a press-fitting hole for a ground connection conductor at a position deviating from a position holding the capacitor in a direction perpendicular to the direction in which the capacitor terminals are arranged, and the ground connection conductor has the ground terminal portion. And a press-fit fixing part that is fixed to the insulating housing by being press-fitted into the press-fitting hole for the ground connection conductor and projecting from the press-fit fixing part in a direction perpendicular to the arrangement direction of the capacitor terminals. If the first capacitor connection portion is provided at a position that is disengaged and can be connected to the first capacitor terminal, interference between the ground connection conductor and the capacitor can be avoided and a compact structure can be maintained. However, the ground connection conductor can be fixed to the insulating housing by press-fitting.

  In the present invention, the electric wire side terminal may be held by a connector housing different from the insulating housing, and the connector housing may be fitted into the insulating housing. If the wire-side terminal has a shape that can be fitted with almost no gap, and the locking portion of the insulating housing can be directly engaged with the wire-side terminal, the entire connector can be further reduced in size. Become.

  Further, the insulating housing is formed with an opening for opening at least a connection portion between the capacitor terminals and the capacitor connecting portions to the outside, and a cover attached to the insulating housing so as to cover the opening. With this, it is possible to easily connect the capacitor terminals and the capacitor connecting portions of the capacitor through the opening in a state where the capacitor is incorporated in the insulating housing (for example, by welding), By attaching a cover after the connection and closing the opening, the connection portion can be effectively protected.

  Further, the insulating housing is formed with a recess surrounding the connection location between the capacitor terminals and the capacitor connection portions, and the recess allows the spread range of the adhesive supplied to the connection location to be regulated. If comprised, the said connection location can be efficiently waterproofed with few adhesive agents by supplying the said adhesive agent to the said connection location and regulating the expansion range.

  Further, in addition to covering the connection portion between the capacitor terminals and the capacitor connecting portions in the recess, an adhesive is supplied and solidified so as to adhere between the capacitor body and the insulating housing. If it is set as the structure, the said connection location can be waterproofed by the said adhesive agent, and the relative displacement of a capacitor | condenser and an insulation housing can be blocked | prevented more reliably. Therefore, it is possible to more effectively prevent a vibration load from being applied to the connection portion due to traveling of a vehicle in which the capacitor built-in connector is mounted.

  Further, the cover is provided with a secondary locking portion for secondary locking the electric wire side terminal in a state where the cover is mounted on the insulating housing, and the secondary locking portion is connected to the electric wire side terminal. If the configuration is provided at a position where it can be engaged with the electric wire side terminal only when it is in a position where it is fitted to the terminal fitting portion, it is possible to simultaneously protect the connection portion by mounting the cover. The half-fitted state of the electric wire side terminal can be detected and double locked.

  Specifically, as the cover, the insulating housing has a container shape having an opening that can be inserted from the terminal insertion portion side, and the secondary locking portion projects on the inner surface of the side wall opposite to the opening. What is provided is suitable. According to this configuration, the outer surface of the insulating housing can be protected over a large area by inserting the insulating housing into the cover from the opening, and the second operation is performed by the mounting operation in the insertion direction. The next locking portion can enter the insulating housing.

  Further, the insulating housing and the cover are provided with a jig insertion window into which a continuity inspection jig for making a continuity test in contact with the wire connection terminal can be inserted from the outside of the cover. preferable.

  Furthermore, in addition to the continuity inspection jig, the jig insertion window has a locking release jig for operating the locking part in a direction to release the locking state of the wire side terminal by the locking part. If the configuration has an insertable shape, it is possible to perform both the continuity inspection and the unlocking using a common jig insertion window.

  Further, in the present invention, the ground terminal portion of the ground connection conductor has a shape that can be combined with another ground terminal, and can be connected to a common ground portion together with the ground terminal, It is possible to simplify the wiring configuration by reducing the number of required ground connection locations.

  As described above, according to the present invention, while using a capacitor having a general shape in which a pair of capacitor terminals protrudes from the capacitor body in the same direction, a simple and compact structure, the electric wire side terminal via the capacitor Can be connected to the ground.

  A preferred embodiment of the present invention will be described with reference to FIGS.

  The capacitor built-in connector shown here is attached to the insulating housing 20, the capacitor 10, the insulating housing 20 that holds the capacitor 10, the ground connection conductor 30 and the wire connecting conductor 40 that are held by the insulating housing 20, and the insulating housing 20. And an electric wire side terminal 60 fixed to the end of an appropriate electric wire D is connected to the ground through the electric wire connecting conductor 40, the capacitor 10, and the earth connecting conductor 30 in this order. ing.

  The electric wire side terminal 60 is a normal female terminal, and has a box-shaped electrical contact portion 62 and a conductor barrel 63 and an insulation barrel 64 in that order in the rear thereof. The two electric wires D to be grounded are held together and held (in the illustrated example). That is, the single electric wire side terminal 60 is commonly crimped to the ends of the two electric wires D. Further, a stabilizer 66 for preventing reverse posture insertion protrudes from an appropriate position of the electrical contact portion 62.

  The capacitor 10 has a very general shape, that is, a shape in which a pin-shaped first capacitor terminal 14 and a second capacitor terminal 16 protrude from the substantially rectangular parallelepiped capacitor body 12 in the same direction at intervals. ing.

  In the illustrated example, the insulating housing 20 has a rectangular parallelepiped shape in plan view. The insulating housing 20 is formed with an opening 21A having a relatively large area that opens upward, and the capacitor 10 can be accommodated in a lateral orientation in the opening 21A.

  The insulating housing 20 has a terminal insertion hole 22 at a position immediately next to the opening 21A. The terminal insertion hole 22 is opened in a direction opposite to the protruding direction of the capacitor terminals 14 and 16 of the capacitor 12 accommodated in the opening 21A, and the wire insertion side is inserted into the terminal insertion hole 22 from the opening 22a. The terminal 60 can be inserted. In the illustrated example, the stabilizer 66 of the electric wire side terminal 60 can be inserted into the terminal insertion hole 22 only in a posture facing the outside of the insulating housing 20.

  The ground connection conductor 30 and the wire connection conductor 40 are formed by punching a metal plate into a predetermined shape and bending it, and the ground connection conductor 30 includes the ground terminal portion 32 and the first capacitor connection portion 34. And the press-fit fixing portion 36 are integrally provided.

  The ground terminal portion 32 and the press-fit fixing portion 36 are arranged on substantially the same plane with a slight step therebetween and protrude in opposite directions, and the first capacitor connecting portion 34 is connected to the press-fit fixing portion 36. It has a key shape that protrudes upward from the upper surface and protrudes in the opposite direction to the ground terminal portion 32. On the other hand, in the insulating housing 20, the press-fit fixing portion is positioned away from the capacitor 10 in a direction perpendicular to the direction in which the capacitor terminals 14 and 16 are arranged (a position below the capacitor 10 in the illustrated example). 36 has a flat ground connection conductor press-fitting hole 23A that can be press-fitted in the direction opposite to the protruding direction of the capacitor terminals 14 and 16, and the first capacitor connecting part 34 can be inserted along with the press-fitting. The first capacitor connecting portion insertion hole 23B is shaped.

  The ground connection conductor 30 is fixed to the insulating housing 20 by press-fitting the press-fit fixing portion 36 into the press-fit hole 23A for the ground connection conductor. Specifically, the first capacitor connecting portion 34 is held at a position in contact with the first capacitor terminal 14 from below, and the ground terminal portion 32 is connected from the insulating housing 20 to the two capacitor terminals 14. The ground connection conductor 30 is held in a posture that projects in the same direction as the projection direction of 16.

  The ground terminal portion 32 is provided with a bolt insertion hole 32a, and the ground terminal portion 32 can be fastened to a predetermined ground portion (for example, a vehicle body) by a bolt inserted into the bolt insertion hole 32a. ing. Also, as shown in FIG. 4A, an opening 21B is provided in the lower half of the insulating housing 20 to open downward the portion where the first capacitor connecting portion 34 contacts the first capacitor terminal 14. By forming a welding electrode from above and below through the opening 21B and the opening 21A and sandwiching the first capacitor terminal 14 and the first capacitor connecting portion 34 in contact therewith from above and below, The first capacitor terminal 14 and the first capacitor connecting portion 34 can be connected by electric welding.

  On the other hand, the electric wire connecting conductor 40 integrally includes a second capacitor connecting portion 42, a terminal fitting portion 44, and a connecting portion 46 for connecting them, and the second connecting portion 46 is connected to the second connecting portion 46 from both ends. The capacitor connection part 42 and the terminal fitting part 44 have a shape protruding in the same direction.

  The second capacitor connecting portion 42 extends from the connecting portion 46 in a direction orthogonal thereto, and is held upright by the insulating housing 20, and a terminal fitting portion from the lower edge of the end portion of the standing portion 42a. The capacitor terminal contact portion 42b extends to the 44 side. The terminal fitting portion 44 constitutes a tab (male terminal) that can be fitted into the electric contact portion 62 of the electric wire side terminal 60, and is held in the insulating housing 20 in the upright posture like the upright portion 42a. It has come to be.

  Specifically, the insulating housing 20 is formed with a second capacitor connecting part press-fitting hole 24A and a terminal fitting part press-fitting hole 24B that open on the same side as the side on which the ground connection conductor press-fitting hole 23A opens. The second capacitor connecting portion 42 and the terminal fitting portion 44 are inserted into the press-fitting holes 24A and 24B in directions opposite to the protruding directions of the capacitor terminals 14 and 16, respectively, and the connecting portion The entire wire connecting conductor 40 is fixed to the insulating housing 20 by press-fitting 46 to a depth where it abuts against the side surface of the housing. The fixed position is such that the capacitor terminal contact portion 42b of the second capacitor connection portion 42 can contact the second capacitor terminal 16 from below, and the terminal fitting portion 44 is inserted in the upright position. The position is set so as to protrude in the hole 22 in the direction opposite to the protruding direction of the capacitor terminals 14 and 16.

  Here, as shown in FIG. 4A, the lower half of the insulating housing 20 has a portion where the capacitor terminal contact portion 42b of the second capacitor connection portion 42 contacts the second capacitor terminal 16 below. An opening 21C is formed in the press-fit fixing portion 36 of the ground connection conductor 30, and a notch 36a (see FIG. 6 (a)) is formed to open the opening 21C while avoiding the opening 21C. ing. Then, by inserting a welding electrode from above and below through the opening 21C and the opening 21A and sandwiching the first capacitor terminal 14 and the first capacitor connecting portion 34 in contact with the first capacitor terminal 14 from above and below, The capacitor terminal 14 and the first capacitor connecting portion 34 can be connected by electric welding.

  Further, the position of the terminal fitting portion 44 is set to a position where it can be fitted to the electric contact portion 62 of the electric wire side terminal 60 inserted into the terminal insertion hole 22. On the other hand, in the insulating housing 20, a lance 25 that can be bent and deformed is formed on a side wall located outside the terminal insertion hole 22, and the electric wire side terminal 60 is inserted to a position where it is fitted to the terminal fitting portion 44. In this state, a locking portion 25 a formed at the end of the lance 25 is configured to lock the wire-side terminal 60.

  In the illustrated example, the electric wire side terminal 60 is a female terminal and the terminal fitting portion 44 is a male terminal, but the male and female may be reversed.

  The cover 50 has a container shape that accommodates almost the entire insulating housing 20. Specifically, it has a peripheral wall 52 that surrounds the internal space from four sides, and a side wall 54 that closes the internal space surrounded by the peripheral wall 52 from one side, and is open to the side opposite to the side wall 54. The insulating housing 20 can be inserted from the terminal insertion hole 22 side with the opening 56 as an inlet.

  Of the peripheral wall 52 of the cover 50, the peripheral wall facing the opening 22 a of the terminal insertion hole 22 is formed with an opening 52 a that matches the opening 22 a, and the electric wire side enters the terminal insertion hole 22 through both the openings 22 a and 52 a. The terminal 60 can be inserted.

  Here, the mounting position of the cover 50 with respect to the insulating housing 20 is a temporary mounting position (primary locking position) as shown in FIGS. 3A and 5A, and FIGS. It is set over two stages of the complete mounting position (secondary locking position) as shown in b), and the cover 50 performs secondary locking of the electric wire side terminal 60 as will be described later in this complete mounting position. It is configured.

  As for the temporary mounting position, a locked window 57 is further extended from the opening 52a of the cover 50, and a temporary locking protrusion 27 is projected on the side surface of the insulating housing 20 corresponding thereto. Then, by inserting the insulating housing 20 into the cover 50 to a position where the temporary locking protrusions 27 fit into the locked window 57, the cover 50 is moved from the fully mounted position to the insulating housing 20. Is also locked to the temporary mounting position on the near side.

  Further, as shown in FIG. 1, as shown in FIG. 1, the peripheral wall 52 of the cover 50 is sandwiched between upper and lower slits 51 extending in the horizontal direction on the opposite side of the peripheral wall 52 where the opening 52 a is formed. A bending piece 53 is formed, and an inward projection 53a is formed at the tip of the bending piece 53. On the side surface of the insulating housing 20 corresponding to this, a locking recess 28 is formed. By inserting the insulating housing 20 further deeply into the cover 50 from the position, the projection 53a of the flexible piece 53 is fitted into the locking recess 28 so that the cover 50 is held in the fully mounted position.

  Here, the lower slit 51 of the slits 51 is formed at a position where the press-fit fixing portion 36 of the ground connection conductor 30 can be inserted, and an interference prevention slit between the press-fit fixing portion 36 and the cover 50. Doubles as

  On the inner side surface of the side wall 54, a pair of upper and lower secondary locking projections 58 as shown in FIG. 2 and FIGS. On the other hand, a secondary locking protrusion insertion hole 26 is provided on the outer side wall of the terminal insertion hole 22 in the insulating housing 20 at a position deviated vertically from the lance 25. Then, in a state where the electric wire side terminal 60 is inserted into the terminal insertion hole 22 until the cover 50 is in the temporary mounting position and is completely fitted into the terminal fitting portion 44, the cover 50 is moved from the temporary mounting position. By moving the cover 50 and the insulating housing 20 relative to the fully mounted position, the secondary locking projection 58 of the cover 50 passes immediately after the stabilizer 66 of the wire side terminal 60 through the secondary locking projection insertion hole 26. The position of the secondary locking projection 58 is set so that the wire side terminal 60 is secondarily locked.

  Further, among the four corners of the insulating housing 20, a corner near the tip of the lance 25 and the terminal fitting portion 44 and a corner of the cover 50 corresponding to the corner are shown in FIG. Jig insertion windows 22b and 55 that are opened to each other at the temporary mounting position as shown are formed. Then, by inserting a continuity inspection jig 70 from these jig insertion windows 22b and 55 and bringing it into contact with the terminal fitting portion 44, and bringing another continuity inspection jig into contact with the ground connection conductor 30, It is possible to inspect continuity between the ground connection conductor 30 and the wire connection conductor 40 via the capacitor 10. Furthermore, the lock release jig 72 can also be inserted into the terminal insertion hole 22 from the same jig insertion windows 22b and 55, and the lance 25 can be forcibly bent using the lock release jig 72. Thus, the locking of the electric wire side terminal 60 by the lance 25 can be released.

  In addition, the specific shape of this cover 50 is not ask | required, For example, the shape which covers only the opening parts 21A-21C locally may be sufficient. Further, depending on the structure of the insulating housing 20, it may be omitted as appropriate.

  Next, the assembly procedure and usage procedure of this capacitor built-in connector will be described with reference to the process diagrams of FIGS.

  1) The ground connection conductor 30 and the wire connection conductor 40 are fixed to the insulating housing 20 as shown in FIG. Specifically, the press-fit fixing portion 36 of the ground connection conductor 30 is press-fitted into the press-fit hole 23A for the ground connection conductor of the insulating housing 20, and the first capacitor connection portion 34 is inserted into the first capacitor connection portion insertion hole 23B. Thus, the ground connection conductor 30 is fixed to the insulating housing 20. Further, by pressing the second capacitor connection portion 42 and the terminal fitting portion 44 of the electric wire connecting conductor 40 into the second capacitor connection portion press-fitting hole 24A and the terminal fitting portion press-fitting hole 24B of the insulating housing 20, respectively. The wire connecting conductor 40 is fixed to the insulating housing 20.

  2) A commercially available capacitor as shown in FIG. 6B, that is, a capacitor 10 in which the first capacitor terminal 14 and the second capacitor terminal 16 protrude from the capacitor body 12 on the same side, is prepared, and the capacitor terminals 14 and 16 Is cut into an appropriate length and set in the insulating housing 20 as shown in FIG. Specifically, the capacitor 10 is fitted into the insulating housing 20 from the opening 21A, and the first capacitor terminal 14 and the second capacitor terminal 16 are respectively connected to the first capacitor connection portion 34 and the wire connection conductor 40 of the ground connection conductor 30. The capacitor terminal contact portion 42b of the second capacitor connection portion 42 is brought into contact with the top from above.

  3) By inserting welding electrodes into the openings 21A and 21B shown in FIG. 4B and sandwiching the contact portion between the first capacitor terminal 14 and the first capacitor connecting portion 34 from above and below, The capacitor terminal 14 and the first capacitor connection portion 34 are connected by welding. Similarly, by inserting a welding electrode into each of the openings 21A and 21C and sandwiching the contact portion between the second capacitor terminal 16 and the capacitor terminal contact portion 42b of the second capacitor connection portion 42 from above and below, The capacitor terminal 16 and the capacitor terminal contact part 42b are connected by welding. Furthermore, waterproofing is performed by dropping an adhesive on each of the connection parts as necessary.

  In that case, in the configuration shown in the figure, as shown in FIGS. 8A and 8B, the opening 21A forms a recess surrounding the connection portion between the capacitor terminals 14 and 16 and the capacitor connection portions 42 and 44. Since this concave portion regulates the spread range of the adhesive supplied to the connection location, by supplying the adhesive to the connection location and regulating the spread range In addition, the connection portion can be efficiently waterproofed with a small amount of adhesive.

  In particular, as shown in FIG. 8 (a), in addition to covering the connection portion between the capacitor terminals 14 and 16 and the capacitor connection portions 42 and 44 in the recess, the edge of the capacitor body 12 is covered. If the adhesive 80 is supplied and solidified so as to adhere between the portion and the bottom surface of the opening 21 </ b> A in the insulating housing 20, the adhesive 80 allows the capacitor 10 to be waterproofed simultaneously with the waterproofing of the connection portion. And the relative displacement between the insulating housing 20 can be more reliably prevented. Therefore, it is possible to more effectively prevent a vibration load from being applied to the connection portion due to traveling of a vehicle in which the capacitor built-in connector is mounted.

  4) As shown in FIG. 7A, the insulating housing 20 is inserted into the opening 56 of the cover 50 from the end of the terminal insertion hole 22 side, and the insulating housing is inserted into the locked window 57 of the cover 50. The temporary locking protrusion 27 on the 20 side is inserted to hold the cover 50 in the temporary mounting position as shown in FIG. At this time, as shown in FIG. 5A, the secondary locking protrusion 58 on the cover 50 side does not enter the terminal insertion hole 22, so that the electric wire side terminal 60 can enter the terminal insertion hole 22. It is in a state.

  5) The electric wire side terminal 60 is crimped to the end of an appropriate electric wire D (two electric wires D in the illustrated example) included in the wire harness, and the electric wire side terminal 60 is connected to the cover 50 and the openings 52a of the insulating housing 20. The electric wire side terminal 60 is fitted to the terminal fitting portion 44 protruding into the terminal insertion hole 22 by being inserted through the terminal insertion hole 22 through the terminal 22a.

  At this time, the terminal fitting portion 44 protrudes in a direction opposite to the protruding direction of the second capacitor terminal 16 at a position deviated laterally from the connection portion between the second capacitor terminal 16 and the second capacitor connecting portion 42. Therefore, as compared with the arrangement in which the components are arranged in a line in the axial direction as described in Patent Document 1, the load applied when the electric wire side terminal 60 is fitted to or pulled out from the terminal fitting portion 44 is greater than the load. It is difficult to act on the connection portion between the second capacitor terminal 16 and the second capacitor connection portion 42. Further, since the wire connecting conductor 40 can be press-fitted and held as it is on the insulating housing 20 side, it is not necessary to provide a holding member for holding the wire connecting conductor 40 separately from the insulating housing 20 as in the prior art.

  6) The cover 50 is further displaced from the temporary mounting position with respect to the insulating housing 20 to a complete mounting position as shown in FIG. This complete mounting position is maintained by fitting the projection 53a of the flexible piece 53 on the cover 50 side into the locking recess 28 of the insulating housing 20 as shown in FIG.

  At the time of the displacement to the complete mounting position, as shown in FIG. 5B, the secondary locking projection 58 on the cover 50 side enters the terminal insertion hole 22 from the secondary locking projection insertion hole 26 and enters the same hole. By being located on the rear side of the stabilizer 66 of the electric wire side terminal 60 in 22, the electric wire side terminal 60 is secondarily locked, that is, prevented from coming off. At this time, if the electric wire side terminal 60 is in a half-fitted state, the secondary locking projection 58 hits the stabilizer 66 and the projection 58 cannot penetrate deeply into the terminal insertion hole 22. The fitting state can also be detected.

  7) As described above, the wire harness having the capacitor built-in connector attached to the end of the electric wire D is routed to an appropriate position in the vehicle, and the earth terminal 32 of the earth connection conductor 30 in the capacitor built-in connector is appropriately arranged. Fasten to the grounding part (eg car body). Thereby, the said electric wire side terminal 60 will be in the state connected to the earth via the electric wire connection conductor 40, the capacitor | condenser 10, and the earth connection conductor 30 in order.

  The specific shape of the ground terminal portion 30 can be set as appropriate. For example, as shown in FIGS. 9A and 9B, a shape that can be combined with a normal ground terminal 74 is also possible. In the illustrated structure, apart from the electric wire D to be connected to the ground via the capacitor built-in connector, the ground electric wire Da to be directly connected to the ground is drawn out from the wire harness WH, and the ground terminal 74 is crimped to the terminal. The ground terminal 74 and the ground terminal portion 32 can be connected to a common ground portion in a state where the ground terminal 74 and the ground terminal portion 32 are overlapped and united.

It is a perspective view which shows the main body and cover of the capacitor built-in connector which concerns on embodiment of this invention. It is a partial cross section perspective view which shows the main body and cover of the said capacitor built-in connector. (A) and (b) are the cross-sectional top views which cut the said capacitor built-in connector by the height of the DD line of FIG.4 (b), (a) is a cross-sectional plane which shows the state which has a cover in a temporary mounting position. FIG. 4B is a cross-sectional plan view showing a state in which the cover is in the fully mounted position. (A) is the sectional view on the AA line of FIG.3 (b), (b) is the BB sectional view of FIG.3 (b), (c) is the CC sectional view taken on the line of (a). . (A) and (b) are the cross-sectional top views which cut the said capacitor built-in connector by the height of CC line of FIG.4 (b), (a) is a cross-sectional top view which shows the state which has a cover in a temporary mounting position. FIG. 4B is a cross-sectional plan view showing a state in which the cover is in the fully mounted position. (A)-(c) is a perspective view which shows the assembly process of the said capacitor built-in connector. (A)-(c) is a perspective view which shows the process of mounting | wearing a cover with respect to the main body of the said connector with a built-in capacitor | condenser. (A) is a perspective view which shows the state which the adhesive agent supplied to the suitable place of the said capacitor | condenser built-in connector and solidified, (b) is the DD sectional view taken on the line of (a). (A) is a perspective view which shows the modification of the said capacitor built-in connector, (b) is a perspective view which shows the state which another earth terminal united with the earth terminal part of the capacitor built-in connector shown to (a). (A) is an exploded sectional view showing an example of a conventional capacitor built-in connector, (b) is a sectional view showing an assembled state of the capacitor built-in connector of (a).

Explanation of symbols

10 Capacitor 12 Capacitor Main Body 14 First Capacitor Terminal 16 Second Capacitor Terminal 20 Insulating Housing 21A, 21B, 21C Opening 22 Terminal Inserting Hole 22a Opening 22b Jig Inserting Window 23A Ground Connection Conductor Press-In Hole 24A Second Capacitor Connecting Part Press-In Hole 24B Terminal fitting portion press-fitting hole 25a Locking portion 26 Secondary locking projection insertion hole 27 Temporary locking projection 30 Ground connection conductor 32 Ground terminal portion 34 First capacitor connection portion 36 Press-fit fixing portion 40 Wire connection conductor 42 Second Capacitor connection portion 44 Terminal fitting portion 46 Connection portion 50 Cover 54 Side wall 55 Jig insertion window 56 Opening portion 58 Secondary locking projection 60 Electric wire side terminal 70 Continuity inspection jig 72 Lock release jig 74 Other ground terminal

Claims (14)

  A capacitor built-in connector in which a capacitor in which a first capacitor terminal and a second capacitor terminal protrude in the same direction from a capacitor body is built in, and a wire side terminal is connected to the ground via the capacitor, and the insulation for holding the capacitor A housing, a ground terminal portion connected to a ground portion, and a first capacitor connection portion connected to the first capacitor terminal; wherein the first capacitor connection portion is connectable to the first capacitor terminal and the ground A ground connection conductor held by the insulating housing in a posture in which the terminal portion protrudes from the insulating housing in substantially the same direction as the capacitor terminals, a terminal fitting portion to be fitted to the electric wire side terminal, and the second capacitor A second capacitor connecting portion connected to the terminal, and the second capacitor A sensor connecting portion is connectable to the second capacitor terminal and the terminal fitting portion is held by the insulating housing in a posture facing the opposite capacitor terminals, and the insulating housing includes: A terminal insertion portion that is located on the side of the capacitor and into which the electric wire side terminal is inserted in a direction opposite to the direction of the two capacitor terminals, and an engagement portion that engages the electric wire side terminal inserted into the terminal insertion portion And the wire-side terminal inserted into the terminal insertion portion is configured to be fitted with the terminal fitting portion and locked by the locking portion at the fitting position. Capacitor built-in connector.   The connector with a built-in capacitor according to claim 1, wherein the insulating housing has a press-fitting hole for a wire connecting conductor into which the second capacitor connecting portion and the terminal fitting portion of the wire connecting conductor are press-fitted from the same side. The capacitor built-in connector, wherein the second capacitor connecting portion and the terminal fitting portion are fixed to the insulating housing by the press-fitting.   The connector with a built-in capacitor according to claim 2, wherein the electric wire connecting conductor has a connecting portion that connects the second capacitor connecting portion and the terminal fitting portion in a direction substantially orthogonal to the direction of the terminal fitting portion, and The capacitor built-in connector, wherein the second capacitor connecting portion and the terminal fitting portion are press-fitted into the press-fitting hole until the connecting portion comes into contact with the side surface of the insulating housing.   The capacitor built-in connector according to any one of claims 1 to 3, wherein the insulating housing has a press-fitting hole for a ground connection conductor at a position deviating from a position holding the capacitor in a direction orthogonal to a direction in which both capacitor terminals are arranged. The ground connection conductor has a press-fit fixing portion that protrudes to the opposite side of the ground terminal portion and is press-fitted into the press-fit hole for the ground connection conductor to be fixed to the insulating housing. A capacitor built-in connector having the first capacitor connecting portion at a position deviated from a portion in a direction orthogonal to the arrangement direction of the two capacitor terminals and connectable to the first capacitor terminal.   The capacitor built-in connector according to any one of claims 1 to 4, wherein the terminal insertion portion of the insulating housing has a shape into which the electric wire side terminal is fitted with almost no gap, and the locking portion of the insulating housing is A capacitor built-in connector, wherein the connector is directly engaged with the electric wire side terminal.   The capacitor built-in connector according to any one of claims 1 to 5, wherein the insulating housing is formed with an opening that opens at least a connection portion between the capacitor terminals and the capacitor connection portion to the outside. A capacitor built-in connector comprising a cover attached to the insulating housing so as to cover the opening.   The capacitor built-in connector according to claim 6, wherein the capacitor terminals and the capacitor connecting portions are connected by welding.   8. The connector with a built-in capacitor according to claim 6, wherein a concave portion surrounding the connection portion between the capacitor terminals and the capacitor connection portions is formed in the insulating housing, and the adhesive supplied to the connection portion by the recess portion. A capacitor built-in connector, characterized in that the spread range of the agent is regulated.   9. The capacitor built-in connector according to claim 8, wherein an adhesive is provided in the recess so as to cover a connection portion between the capacitor terminals and the capacitor connecting portions and to bond between the capacitor body and the insulating housing. A capacitor built-in connector characterized by being supplied and solidified.   10. The connector with a built-in capacitor according to claim 6, wherein the cover is provided with a secondary locking portion for secondary locking of the electric wire side terminal in a state where the cover is mounted on the insulating housing. The secondary locking part is provided at a position where the electric wire side terminal can be engaged with the electric wire side terminal only when the electric wire side terminal is located at the position where the electric terminal is engaged with the terminal fitting part. Capacitor built-in connector.   11. The connector with a built-in capacitor according to claim 10, wherein the cover has a container shape having an opening through which the insulating housing can be inserted from the terminal insertion portion side, and the insulating housing is formed on the inner surface of the side wall opposite to the opening. A connector with a built-in capacitor, characterized in that a secondary locking portion having a shape capable of entering is projected.   The connector with a built-in capacitor according to any one of claims 6 to 11, wherein a continuity inspection jig for contacting the wire connection terminal and performing a continuity test on the insulating housing and the cover can be inserted from the outside of the cover. Capacitor-incorporated connector, characterized in that an appropriate jig insertion window is provided.   The connector with built-in capacitor according to claim 12, wherein the jig insertion window operates the locking portion in a direction to release the locking state of the wire side terminal by the locking portion in addition to the continuity inspection jig. A connector with a built-in capacitor, characterized in that it has a shape into which an unlocking jig can be inserted.   14. The connector with a built-in capacitor according to claim 1, wherein the ground terminal portion of the ground connection conductor has a shape that can be combined with another ground terminal, and can be connected to a common ground portion together with the ground terminal. A connector with a built-in capacitor, characterized by being configured as follows.

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