JP2014096209A - Joint connector with built-in capacitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint connector with a built-in capacitor with a novel structure, capable of simply and easily connecting a lead part of a capacitor to a bus-bar at a power source side and to a bus-bar at a ground side, and maintaining effectively connection stability between them.SOLUTION: A connector housing 22 consists of a bus-bar holder 52 for holding bus-bars 14, 18 at a power source side and a ground side; a capacitor holder 54; and a connection region 50 between them. Lead connection parts 34, 40 at the bus-bars 14, 18 at a power source side and a ground side and a lead part 46 of a capacitor 20 are electrically connected to the connection region 50 so as to be mutually overlapped, the capacitor holder 54 has a bottom wall 62 and a cylinder wall 64, a pair of lead through holes 66a, 66b are placed in a piercing manner in the bottom wall 62, and a slit 68 through which a pair of lead through holes 66a, 66b of the bottom wall 62 are visible from the outside, is placed in a piercing manner in the bottom wall 64.

Description

  In the present invention, a power supply side bus bar having a plurality of terminal portions, a ground side bus bar having a plurality of terminal portions, and a capacitor connecting between the power supply side bus bar and the ground side bus bar are accommodated and held in a connector housing. The present invention relates to a joint connector with a built-in capacitor.

  Conventionally, as a kind of joint connector that collectively connects a plurality of electric wires derived from electric / electronic devices mounted on an automobile or the like, a power supply side bus bar having a plurality of terminal portions and a ground side bus bar having a plurality of terminal portions are provided. A joint connector with a built-in capacitor in which a capacitor is connected between them is known. For example, those described in Japanese Patent Application Laid-Open No. 2007-287644 (Patent Document 1). According to such a joint connector with a built-in capacitor, a plurality of electric wires led out from the plus side of various devices connected to the terminal portion of the power source side bus bar or the plus side of the power source are collectively connected via the power source side bus bar. On the other hand, a plurality of electric wires led out from the minus side of various devices connected to the terminal portion of the earth side bus bar and the minus side of the power source are collectively connected to the earth side bus bar. The grounded capacitor is connected to the power supply side, so that noise generated on the power supply side can be removed.

  By the way, in such a joint connector with a built-in capacitor, as shown in FIG. 5 and FIG. 6 of Patent Document 1, a pair of capacitors with a power supply side bus bar and a ground side bus bar accommodated in a connector housing are arranged. The lead part is inserted into the insertion hole provided in the lead connection part formed in each bus bar and soldered, thereby connecting the capacitor to the power supply side bus bar and the earth side bus bar.

  However, the operation of bending and inserting the pair of lead portions protruding from the capacitor at a position that matches the insertion hole of each bus bar is very complicated, resulting in deterioration of work efficiency. In addition, when soldering each lead part to each lead connection part, it is necessary to position and hold the capacitor and connector housing with a jig or the like, which increases the number of parts and man-hours required for work, and improves workability. It was getting worse.

JP 2007-287644 A

  The present invention has been made in the background of the above-mentioned circumstances, and its solution is to easily and easily connect the lead portion of the capacitor to the power supply side bus bar and the ground side bus bar. An object of the present invention is to provide a capacitor-integrated joint connector having a novel structure capable of advantageously maintaining the connection stability thereof.

  According to a first aspect of the present invention, there is provided a connector housing including a power supply side bus bar having a plurality of terminal portions, a ground side bus bar having a plurality of terminal portions, and a capacitor for connecting between the power supply side bus bar and the ground side bus bar. In the joint connector with a built-in capacitor, the connector housing is provided on one end side of the connector housing, the bus bar holding portion holding the power supply side bus bar and the ground side bus bar, and the other end of the connector housing And a capacitor holding part that holds the capacitor at a position spaced from the bus bar holding part, and a connection region provided between the bus bar holding part and the capacitor holding part. On the other hand, the capacitor is the same as the capacitor body and the bottom surface of the capacitor body. The power supply side bus bar and the ground side bus bar each have a lead connection part to which the pair of lead parts of the capacitor are connected, and the connector housing In the connection region, the power supply side bus bar and the lead connection portion of the ground side bus bar projecting from the bus bar holding portion toward the capacitor holding portion, and the capacitor connecting portion projecting toward the bus bar holding portion. The pair of lead portions of the capacitor are overlapped and electrically connected to each other, while the capacitor holding portion has a bottom wall facing the bottom surface of the capacitor body and an outer peripheral surface of the capacitor body. The bottom wall includes the pair of lead portions of the capacitor. Whereas a pair of lead insertion holes to be passed therethrough are provided, slits are provided in the cylindrical wall so that the pair of lead insertion holes in the bottom wall can be visually recognized from the outside. And

  According to the joint connector with a built-in capacitor according to the present invention, a connection region is provided between the bus bar holding portion provided on one end side of the connector housing and the capacitor holding portion provided on the other end side, In the connection region, the lead portion of the capacitor and the lead connection portion of the power supply side bus bar and the ground side bus bar are overlapped with each other and electrically connected. Therefore, by using the connection area provided in the intermediate part between the bus bar holding part and the capacitor holding part of the connector housing, the lead part and the lead connection part can be easily and stably electrically connected in the connection area. Can be made. In particular, since the power source side bus bar / ground side bus bar and the capacitor to be connected are held at both ends of the connector housing, positioning of the connection target can be easily achieved simultaneously with the mounting to the connector housing. Thereby, compared with the conventional structure, the jig | tool required for a connection process and the operation | work of a position alignment can be reduced advantageously, and a connection operation | work can be performed simply and easily.

  In addition, since the connection region is provided between the bus bar holding portion and the capacitor holding portion, without bending the lead connection portion protruding from each bus bar or the pair of lead portions protruding from the bottom surface of the capacitor body, The lead connection part and the lead part can be overlapped and electrically connected only by projecting into the connection region. Therefore, it is not necessary to bend the pair of lead portions of the capacitor having the conventional structure in accordance with the position of the lead connection portion, and the connection work can be further improved in efficiency.

  In addition, since the capacitor holding part has a lead insertion hole, the capacitor held in the capacitor holding part can be reliably positioned and held simply by inserting the capacitor lead part into the lead insertion hole. In addition, it is possible to prevent a connection failure or the like due to rotation of the capacitor during connection work between the lead part and the lead connection part or during subsequent use. When such a lead insertion hole is provided in the bottom wall of the capacitor holding portion, it becomes difficult to insert the lead portion protruding from the bottom surface of the capacitor main body into the lead insertion hole in the back of the capacitor holding portion, On the other hand, it can be predicted that the workability is deteriorated, but in the present invention, such work can be easily performed.

  That is, the cylindrical wall of the capacitor holding part is provided with a slit through which the pair of lead parts on the bottom wall can be seen from the outside. Therefore, the operator can easily align the capacitor lead part while inserting the capacitor lead part into the capacitor holding part and visually confirming the lead insertion hole provided in the bottom wall from the slit provided in the cylinder wall. Then, it can be inserted into the lead insertion hole. Therefore, the operation of inserting the lead portion of the capacitor into the lead insertion hole can be performed very easily.

  The slit includes any one that penetrates the cylindrical wall of the capacitor holding portion in the plate thickness direction so that the lead insertion hole of the bottom wall can be visually recognized through the slit. For example, the slit may be provided over the entire axial length of the cylinder wall, or may be provided so as to penetrate a part of the cylinder wall in a window shape. In addition, the connection method of the lead part of the capacitor and the lead connection part of the bus bar is arbitrary, and if it can be carried out in the connection region, it is electrically connected by a method such as soldering other than resistance welding. May be.

  According to a second aspect of the present invention, in the one described in the first aspect, the radial line connecting the pair of lead insertion holes provided in the bottom wall intersects the cylindrical wall. A pair is formed.

  According to this aspect, a part of the cylindrical wall that intersects the radial line connecting the pair of lead insertion holes is cut to form a slit. Therefore, it is possible to easily confirm the pair of lead insertion holes at once from the outside of the cylindrical wall through the slit, and the operator positions and inserts the pair of lead portions with respect to the pair of lead insertion holes. However, it can be performed more easily. Moreover, since a pair of slits are formed facing each other on the radial line connecting the pair of lead insertion holes, when the operator visually confirms from one slit, the light is projected from the other slit, The worker's visual confirmation work can be performed more advantageously.

  According to a third aspect of the present invention, in the first or second aspect, the slit is formed over the entire axial length of the cylindrical wall, and the pair of leads passes through the slit. The portion can be slidably inserted into the cylindrical wall.

  According to this aspect, the slit has a width dimension through which the lead portion of the capacitor can be inserted, and is formed over the entire axial length of the cylindrical wall. Therefore, the operator does not necessarily need to insert the lead portion of the capacitor from the end opening portion of the cylindrical wall of the capacitor holding portion, but through the slit formed over the entire axial length of the cylindrical wall. It is also possible to insert slides from the surroundings. As a result, the lead portion can be inserted from the periphery of the cylindrical wall, and the tip of the lead portion can be aligned immediately before the lead insertion hole, thereby further improving the workability.

  A fourth aspect of the present invention is the one described in the third aspect, wherein the width dimension of the slit is enlarged on the bottom wall side.

  According to this aspect, since the width dimension of the slit is enlarged on the bottom wall side, visual confirmation of the lead portion and the lead insertion hole can be performed more easily. In addition, since the width dimension is limited only to the bottom wall side, the capacitor body can be stably held in a wide area on the tip side of the cylinder wall of the capacitor holding part that is separated from the bottom wall. Therefore, the holding stability of the capacitor by the capacitor holding portion can be advantageously maintained.

  In the present invention, a connection region is provided between the bus bar holding portion provided on one end side of the connector housing and the capacitor holding portion provided on the other end side, and the lead portion of the capacitor is provided in the connection region. And the lead connection portion of the power supply side bus bar and the ground side bus bar are electrically connected. Accordingly, the connection process can be performed easily and simply by reliably positioning and holding the connection target with a small number of parts. Moreover, since the cylindrical wall of the capacitor holding part is provided with a slit through which the pair of lead parts of the bottom wall can be seen from the outside, the operator can access the bottom wall from the slit provided in the cylindrical wall. While visually confirming the provided lead insertion hole, the lead portion of the capacitor can be easily aligned and inserted into the lead insertion hole.

The disassembled perspective view of the joint connector with a built-in capacitor as one embodiment of the present invention. The disassembled perspective view which shows the connector main body which assembled | attached the power supply side bus bar, the earth side bus bar, and the capacitor | condenser with respect to the connector housing shown in FIG. 1, and a connector case. The principal part enlarged side view which shows an example of the process of mounting | wearing a capacitor | condenser with the capacitor | condenser holding | maintenance part of the connector housing shown in FIG. FIG. 4 is an enlarged view of a principal part taken along the line IV-IV in FIG. The VV cross-section principal part enlarged view of FIG. The principal part expansion perspective view which shows another example of the process of mounting | wearing a capacitor | condenser with the capacitor | condenser holding | maintenance part of the connector housing shown in FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIGS. 1 and 2 are exploded perspective views of a capacitor built-in joint connector 10 according to an embodiment of the present invention. The capacitor built-in joint connector 10 includes a power supply side bus bar 14 having a plurality of terminal portions 12, a ground side bus bar 18 having a plurality of terminal portions 16, and a capacitor 20 connecting between the power supply side bus bar 14 and the ground side bus bar 18. The connector main body 24 is accommodated and held in the connector housing 22. The connector body 24 is accommodated and held in the connector case 26, whereby the capacitor built-in joint connector 10 of the present embodiment is configured.

  More specifically, the power supply side bus bar 14 and the ground side bus bar 18 are formed by press punching a conductive metal flat plate such as copper or copper alloy into a predetermined shape. As shown in FIG. 1, the power supply side bus bar 14 includes a plurality of terminal portions 12 that are arranged to be spaced apart from each other, and are connected to each other via a beam-like connection portion 30 on the base end side thereof. Yes. A pair of engaging protrusions 32 a and 32 b projecting from both end sides of the connecting portion 30 are provided on the opposite side of the connecting portion 30 with respect to the terminal portion 12. Further, a belt-like power supply side lead connecting portion 34 is provided with a projecting length larger than the engaging projecting portions 32 a and 32, slightly closer to the center of the connecting portion 30 and closer to the engaging projecting portion 32 a. Similarly, in the ground side bus bar 18, a plurality of terminal portions 16 that are aligned and spaced apart from each other are connected to each other via a beam-like connecting portion 36 on the base end side thereof. A pair of engaging projections 38 a and 38 b projecting from both end sides of the coupling portion 36 are provided on the opposite side of the terminal portion 16 with the coupling portion 36 interposed therebetween. Further, a belt-like ground-side lead connecting portion 40 is provided with a projecting length larger than that of the engaging protrusions 38 a and 38 near the engaging protrusion 38 b in the central portion of the connecting portion 36. The ground-side lead connecting portion 40 is raised with the protruding tip end side bent in a crank shape in a side view, and the protruding tip end surface 40a is positioned above the terminal portion 16. Yes.

  The capacitor 20 connecting between the power supply side bus bar 14 and the ground side bus bar 18 protrudes outward in the axial direction (left side in FIG. 1) in the same direction from the cylindrical capacitor body 42 and the bottom surface 44 of the capacitor body 42. A pair of lead portions 46a and 46b are provided. As the capacitor 20 having such a structure, conventionally known various capacitors such as electrolytic capacitors and film capacitors can be suitably employed.

  The connector housing 22 that houses and holds the power supply side bus bar 14, the ground side bus bar 18, and the capacitor 20 has a structure in which a non-conductive synthetic resin material is integrally formed by injection molding or the like. As shown in FIG. 1, the connector housing 22 includes a rectangular frame body portion 48 at the center thereof, and is defined by the rectangular frame body portion 48 by a hollow region formed inside the rectangular frame body portion 48. The connection area 50 is configured. A bus bar holding portion 52 is integrally formed on one (on the left side in FIG. 1) of the pair of opposing wall portions of the rectangular frame body portion 48 that is one end side in the longitudinal direction of the connector housing 22. Further, on the other side (the right side in FIG. 1) of the pair of opposing wall portions of the rectangular frame body portion 48, which is the other end side in the longitudinal direction of the connector housing 22, a position separated from the bus bar holding portion 52 in the longitudinal direction. A capacitor holding portion 54 that accommodates and holds the capacitor 20 is integrally formed.

  The bus bar holding part 52 is formed with a power supply side bus bar accommodation hole 56 and an earth side bus bar accommodation hole 58 that penetrate the inside in a direction facing the capacitor holding part 54. The power supply side bus bar accommodation hole 56 and the ground side bus bar accommodation hole 58 are arranged so as to be lined up and down in the axial direction of the rectangular frame 48. When the power supply side bus bar 14 is inserted into the power supply side bus bar accommodation hole 56 of the bus bar holding portion 52 from the outer opening side (left side in FIG. 1), the power supply side bus bar accommodation hole 56 is formed. A pair of engaging protrusions 32a and 32b provided on the power supply side bus bar 14 are fitted and held in an engaging recess (not shown). Thereby, the power supply side bus bar 14 is positioned and held at a predetermined position of the power supply side bus bar accommodating hole 56 of the bus bar holding part 52. Under such a positioning state, the power supply side lead connection part 34 provided on the power supply side bus bar 14 passes through the power supply side bus bar accommodating hole 56 and protrudes from the bus bar holding part 52 toward the capacitor holding part 54. Are disposed in the connection region 50.

  Similarly, the ground side bus bar 18 is inserted into the ground side bus bar accommodation hole 58 of the bus bar holding portion 52 from the outer opening side (left side in FIG. 1). Since the ground side bus bar 18 has the ground side lead connection part 40 whose front end side is bent in a crank shape as described above, the ground side lead connection part 40 extends over the entire length of the ground side bus bar accommodating hole 58. It is impossible to pass through. Therefore, a notch 60 is formed on the bottom surface of the ground-side bus bar accommodating hole 58. When the ground side bus bar 18 is inserted into the ground side bus bar accommodating hole 58, first, the base end side of the ground side lead connecting portion 40 is fitted into the notch 60 from below so that the ground side bus bar accommodating hole is inserted. Insert into 58. Thereafter, when the pair of engaging protrusions 38a and 38b of the ground side bus bar 18 are inserted from the outer opening side (left side in FIG. 1) of the ground side bus bar accommodation hole 58 to the back, A pair of engagement protrusions 38a and 38b of the ground-side bus bar 18 are fitted and held in engagement recesses (not shown) formed inside. Thereby, the ground side bus bar 18 is positioned and held at a predetermined position of the ground side bus bar accommodating hole 58 of the bus bar holding portion 52.

  Here, the upper surface of the power supply side lead connection portion 34 of the power supply side bus bar 14 accommodated and held in the bus bar holding portion 52 and the upper surface of the protruding tip end surface 40a of the ground side lead connection portion 40 of the ground side bus bar 18 are rectangular frames. The parts 48 are held at substantially the same position in the axial direction.

  On the other hand, the capacitor holding part 54 integrally formed on the other end side of the connector housing 22 is a cylinder covering the bottom wall 62 facing the bottom surface 44 of the capacitor body 42 and the outer peripheral surface of the capacitor body 42 as shown in FIG. It has the wall 64 and is comprised by the substantially bottomed cylindrical shape as a whole. The inner diameter dimension of the cylindrical wall 64 is slightly larger than the outer diameter dimension of the capacitor main body 42. The axial length of the cylindrical wall 64 is substantially the same as the axial length of the capacitor main body 42, and the capacitor main body 42 holds the capacitor while the capacitor main body 42 is accommodated in the capacitor holding portion 54. It does not protrude from the portion 54 in the axial direction.

  A pair of lead insertion holes 66a and 66b through which the pair of lead portions 46a and 46b of the capacitor 20 are inserted are provided in the bottom wall 62 of the capacitor holding portion 54. On the other hand, slits 68 and 68 are provided in the cylindrical wall 64 of the capacitor holding portion 54 so that the pair of lead portions provided with the bottom wall 62 can be visually recognized from the outside. As shown in an enlarged view in FIG. 5, in this embodiment, two radial lines L connecting the pair of lead insertion holes 66 a and 66 b provided in the bottom wall 62 intersect with the cylindrical wall 64. The cylindrical wall 64 is partially cut away, so that a pair of slits 68 are formed in the cylindrical wall 64. In short, one pair of slits 68, 68 is provided on each of the one side surface of the cylindrical wall 64 shown in FIG. 1 and the other side surface of the cylindrical wall 64 not shown in FIG.

  Each slit 68 is formed over the entire axial length of the cylindrical wall 64, and the width dimension of the slit 68 corresponding to the circumferential length of the cylindrical wall 64 is different in the axial direction of the slit 68. Specifically, as shown in an enlarged view in FIG. 3, each slit 68 has a widened portion 68a whose width dimension W1 is enlarged on the bottom wall 62 side (left side in FIG. 3) of the capacitor holding portion 54. In addition, on the opening side (right side in FIG. 3) of the capacitor holding portion 54, there is a narrow width portion 68b whose width dimension W2 is reduced, and these widened portion 68a and narrow width portion 68b. Are connected to each other to form a slit 68. The width dimension W2 of the narrow width portion 68b of each slit 68 is larger than the diameter dimension φ1 of the lead portions 46a and 46b, and the width dimension W1 of the wide width portion 68a is larger than the width dimension W2 of the narrow width portion 68b. (W1> W2> φ1). As a result, the pair of lead portions 46 a and 46 b can be slid and inserted into the inside of the cylindrical wall 64 through the slits 68 from the side of the cylindrical wall 64 of the capacitor holding portion 54. Further, since the widened portion 68a is formed on the bottom wall 62 side, visual confirmation from the slits 68 of the lead insertion holes 66a, 66b can be easily performed. In addition, since the narrow width portion 68 b is provided on the opening side of the cylindrical wall 64 that is separated from the bottom wall 62, the opening area of the slit 68 is reduced, and the capacitor main body 42 can be stabilized with a wider area of the cylindrical wall 64. It can be held.

  The width dimension W1 of the widened portion 68a of each slit 68 may be larger than the width dimension W2 of the narrowed portion 68b. More preferably, as shown in FIG. The angle α formed by the passing radial line is set to be 10 to 60 degrees, more preferably 15 to 30 degrees. If the angle α formed by the radial line is smaller than 10 degrees, the visibility of the widened portion 68a may not be sufficiently improved. If the angle α formed by the radial line is larger than 60 degrees, the capacitor holding unit 54 may be used. This is because sufficient rigidity may not be ensured.

  Next, an example of an operation of mounting the capacitor 20 on the connector housing 22 in which the power supply side bus bar 14 and the ground side bus bar 18 are accommodated and held in the bus bar holding portion 52 will be described with reference to FIGS. 3 and 4. As shown in FIG. 3, the operator can insert and attach the capacitor 20 from the lead portions 46a and 46b side from the opening side (right side in FIG. 3) of the capacitor holding portion 54. At this time, since the pair of slits 68 and 68 are provided in the cylindrical wall 64, the operator visually observes the positions of the lead insertion holes 66 a and 66 b provided in the bottom wall 62 through the slit 68. , The tip portions of the lead portions 46a and 46b of the capacitor 20 can be easily aligned and easily inserted into the respective lead insertion holes 66a and 66b, which is advantageous in improving insertion workability. It is.

  4, the inner surfaces of the lead insertion holes 66a and 66b gradually become smaller in diameter in the insertion direction of the lead portions 46a and 46b (the direction from the right side to the left side in FIG. 4). It is a smooth tapered surface with no steps. Therefore, when the lead portions 46a and 46b are inserted into the lead insertion holes 66a and 66b, the lead portions 46a and 46b are inserted while being smoothly centered without being caught. As shown in FIG. 2, a lead support base 70 projects from the rectangular frame body portion 48 in the vicinity of the bottom wall 62 of the integrally formed capacitor holding portion 54. A pair of lead holding grooves 72a and 72b are formed to extend in a substantially semicircular cross-sectional shape over a predetermined length on the upper surface. Therefore, the lead portions 46a and 46b inserted into the lead insertion holes 66a and 66b are also accommodated and held in the lead holding grooves 72a and 72b.

  Furthermore, another example of the work of mounting the capacitor 20 on the capacitor holding portion 54 will be described with reference to FIG. Each slit 68 is formed over the entire length of the cylindrical wall 64 in the axial direction, and the width dimensions W1 and W2 of the widened portion 68a and the narrowed portion 68b are made larger than the diameter dimension φ1 of the lead portions 46a and 46b. Therefore, as shown in FIG. 6, the operator inserts the lead portions 46a and 46b of the capacitor 20 from the side of the cylindrical wall 64, and the leading ends of the lead portions 46a and 46b are connected to the lead insertion holes 66a and 66b. It is also possible to align the position immediately before. Thereby, it becomes possible to further facilitate and speed up the operation of inserting the lead portions 46a and 46b of the capacitor 20 into the lead insertion holes 66a and 66b.

  In this way, the power supply side bus bar 14 and the ground side bus bar 18 are accommodated and held in the bus bar holding part 52 while the capacitor 20 is accommodated and held in the capacitor holding part 54 with respect to the connector housing 22, thereby obtaining the structure shown in FIG. As shown, in the connection region 50 defined by the rectangular frame body portion 48, the power supply side lead connection portion 34 of the power supply side bus bar 14 projecting from the bus bar holding portion 52 toward the capacitor holding portion 54 and the ground side bus bar. 18 ground side lead connection portions 40 and a pair of lead portions 46 a and 46 b of the capacitor 20 protruding from the capacitor holding portion 54 toward the bus bar holding portion 52 are overlapped with each other in the axial direction of the rectangular frame body portion 48. Positioned and held in the state. Accordingly, in the state shown in FIG. 2, the pair of lead portions 46a and 46b can be electrically connected to the power supply side lead connection portion 34 and the ground side lead connection portion 40, respectively, by an arbitrary method. In the present embodiment, a pair of electrode tips of a resistance welder (not shown) are inserted from the upper and lower sides of the rectangular frame body portion 48 in the axial direction, and the pair of lead portions 46a and 46b, the power supply side lead connection portion 34, and the ground The overlapping portion of the side lead connecting portion 40 is sandwiched between the electrode tips, and they are electrically connected by resistance welding.

  The connector main body 24 shown in FIG. 2 in which the pair of lead portions 46a and 46b, the power supply side lead connection portion 34 and the ground side lead connection portion 40 are overlapped with each other and electrically connected by resistance welding is finally obtained. The connector case 26 is housed and held (see FIG. 2). The connector case 26 is formed of a non-conductive synthetic resin material, and has a bottomed cylindrical portion 74 that accommodates the capacitor holding portion 54 on one end side, and a rectangular cylinder that accommodates the bus bar holding portion 52 on the other end side. A portion 76 is provided. The connector body 24 is inserted into the connector case 26 through the opening of the rectangular cylindrical body portion 76 so that the connector body 24 is positioned and held in the connector case 26. Yes. Thereby, the capacitor built-in joint connector 10 according to the present embodiment is provided. Such a capacitor built-in joint connector 10 is used by being connected to a mating connector (not shown). As a result, a plurality of electric wires led out from the plus side of various devices connected to the terminal portion 12 of the power supply side bus bar 14 and the plus side of the power supply are connected together via the power supply side bus bar 14, while the ground side bus bar A plurality of electric wires led out from the minus side of various devices connected to the 18 terminal portions 16 and the minus side of the power source are collectively connected to the ground side bus bar 18 to eliminate noise generated on the power source side via the capacitor 20. Can be done.

  According to the joint connector 10 with a built-in capacitor according to this embodiment, the power supply side bus bar 14 and the ground side bus bar 18 are respectively connected to the bus bar holding part 52 and the capacitor holding part 54 provided on both ends of the connector housing 22. Just by mounting the capacitor 20, in the connection region 50 provided between them, the power supply side lead connection part 34 and the ground side lead connection part 40, which are electrical connection targets, and the lead parts 46a and 46b of the capacitor 20 are connected. Can be positioned and held without being bent or the like. Therefore, the positioning of the connection target can be easily achieved simultaneously with the mounting to the connector housing 22. As a result, jigs and alignment work required for the connection process, as well as bending work of the lead portions 46a and 46b, etc., can be reduced as compared with the conventional structure, and the connection work is simplified, easy and efficient. The sex can be improved dramatically.

  In addition, since the capacitor holding portion 54 is provided with lead insertion holes 66a and 66b, the capacitor holding portion 54 can be held only by inserting the lead portions 46a and 46b of the capacitor 20 into the lead insertion holes 66a and 66b. The rotation of the capacitor 20 around the central axis can be prevented. Thereby, it is possible to prevent a connection failure between the lead portions 46a and 46b and the lead connection portions 34 and 40 on the power supply side and the ground side due to the rotation of the capacitor 20 during connection work or subsequent use.

  Further, since the pair of slits 68 and 68 are provided in the cylindrical wall 64 of the capacitor holding portion 54, the operator can insert lead insertion holes 66 a and 66 b provided in the bottom wall 62 through the slit 68. The tip portions of the lead portions 46a and 46b of the capacitor 20 can be easily aligned and easily inserted into the respective lead insertion holes 66a and 66b while improving the insertion workability. Is advantageous.

  In particular, in the present embodiment, the pair of slits 68 and 68 are provided at two locations where the radial line L connecting the pair of lead insertion holes 66a and 66b intersects the cylindrical wall 64. Therefore, the pair of leads The insertion holes 66a and 66b can be easily confirmed from the slit 68 at a time. Further, the visibility of the lead insertion holes 66a and 66b from the slit 68 is also advantageously improved by the light incident from the slit 68 that is opposed in the radial direction. In addition, since the widened portion 68 a provided on the bottom wall 62 side is included, the visibility of the lead insertion holes 66 a and 66 b through the slit 68 is advantageously ensured.

  Further, since the connection region 50 is defined by the rectangular frame body portion 48 of the connector housing 22, the hollow connection region 50 can be formed in the intermediate portion while ensuring the rigidity of the connector housing 22. Accordingly, a pair of electrode tips of a resistance welder (not shown) is inserted from the upper and lower sides of the connection region 50, and the pair of lead portions 46a and 46b, the power supply side lead connection portion 34 and the ground side lead connection portion 40 are overlapped. It is possible to sandwich the portion between the electrode tips and connect them by resistance welding. Therefore, the working efficiency can be dramatically improved as compared with the case where both are connected by soldering or the like.

  Further, since the bus bar holding portion 52 and the capacitor holding portion 54 are integrally formed on the pair of opposing wall portions of the rectangular frame body portion 48, the rigidity thereof and the rigidity of the entire connector housing 22 are ensured, so It becomes possible to position the power supply / ground side lead connection portions 34, 40 and the lead portions 46a, 46b of the capacitor 20 with higher accuracy.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, a pair of slits 68 penetrating the cylindrical wall 64 of the capacitor holding portion 54 is not necessarily provided, and only one slit 68 may be provided. It is also possible to provide slits 68 at three or more locations on the circumference of the cylinder wall 64.

  Furthermore, the slit 68 does not need to be formed over the entire axial length of the cylindrical wall 64, and may have a shape such as a viewing window configured only by the widened portion 68 a, for example.

  In addition, the connection direction of the power supply side / ground side lead connection portions 34 and 40 and the lead portions 46a and 46b of the capacitor 20 in the connection region 50 is not limited to the resistance welding of the above-described embodiment. Direction can be adopted.

10: Joint connector with built-in capacitor, 12: Terminal portion, 14: Power supply side bus bar, 16: Terminal portion, 18: Ground side bus bar, 20: Capacitor, 22: Connector housing, 34: Power supply side lead connection portion (lead connection portion) , 40: ground side lead connection part (lead connection part), 42: capacitor main body, 44: bottom surface, 46a, b: lead part, 50: connection region, 52: bus bar holding part, 54: capacitor holding part, 62: bottom Wall, 64: cylinder wall, 66a ,: lead insertion hole, 68: slit

Claims (4)

A power source side bus bar having a plurality of terminal portions, a ground side bus bar having a plurality of terminal portions, and a capacitor built-in joint in which a capacitor connecting between the power source side bus bar and the ground side bus bar is accommodated and held in a connector housing In the connector,
The connector housing is provided on one end side of the connector housing to hold the power supply side bus bar and the ground side bus bar, and is provided on the other end side of the connector housing and separated from the bus bar holding portion. While comprising a capacitor holding portion that holds the capacitor at a position, and a connection region provided between the bus bar holding portion and the capacitor holding portion,
The capacitor includes a capacitor body and a pair of lead portions protruding in the same direction from the bottom surface of the capacitor body,
The power supply side bus bar and the ground side bus bar each include a lead connection portion to which the pair of lead portions of the capacitor are connected,
In the connection area of the connector housing, the power supply side bus bar and the lead connection portion of the ground side bus bar projecting from the bus bar holding portion toward the capacitor holding portion, and the capacitor holding portion to the bus bar holding portion. While the pair of lead portions of the capacitor projecting toward each other are overlapped and electrically connected,
The capacitor holding portion is configured to have a bottom wall facing the bottom surface of the capacitor body, and a cylindrical wall covering an outer peripheral surface of the capacitor body;
The bottom wall is provided with a pair of lead insertion holes through which the pair of lead portions of the capacitor are inserted, while the cylindrical wall is provided with the pair of lead insertion holes from the outside. A joint connector with a built-in capacitor, characterized by a slit that is visible.   2. The capacitor built-in joint connector according to claim 1, wherein a pair of the slits is formed at a location where a radial line connecting the pair of lead insertion holes provided in the bottom wall intersects the cylindrical wall.   The said slit is formed over the axial direction full length of the said cylinder wall, The said pair of lead part can be slidably inserted in the inside of the said cylinder wall through the said slit. Joint connector with built-in capacitor.   The joint connector with a built-in capacitor according to claim 3, wherein a width dimension of the slit is enlarged on the bottom wall side.

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