JP5751191B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  2. Description of the Related Art Conventionally, a connector described in Patent Document 1 below is known as a connector including a male housing in which a bus bar is incorporated and a female housing that can be fitted to the male housing. A plurality of female terminals are inserted into the female housing, and when the male and female connectors are fitted, each female terminal is short-circuited by the bus bar. The male housing has a hood portion for receiving the female housing therein, and a bus bar is assembled by press-fitting from the front side (fitting surface side with the female housing) to the rear wall of the hood portion.

  Further, as a connector forming an integrated housing in which a male housing and a female housing are integrated, for example, a connector described in Patent Document 2 below is known. In this connector, the bus bar is incorporated from the front side of the integrated housing, and the female terminals are inserted from the rear side of the integrated housing. Therefore, a bus bar insertion port for inserting the bus bar is formed on the front wall of the integrated housing, and the bus bar is exposed to the front of the integrated housing through the bus bar insertion port, and condensation occurs on the exposed bus bar. Or foreign matter may adhere.

JP 2008-21498 A JP 2010-67483 A

  However, when a configuration in which a plurality of bus bars are incorporated into one integrated housing is adopted, a pair of adjacent bus bars may be electrically leaked due to the above-described condensation or foreign matter adhesion.

  The present invention has been completed based on the above-described circumstances, and an object of the present invention is to prevent leakage due to condensation or foreign matter adhesion after the housing is integrated.

The present invention has a conductive plate, a housing having an insertion port for inserting the conductive plate, and holding the conductive plate inserted into the insertion port from the front, and a front surface in which the insertion port in the housing is formed. And a retainer portion with a cover integrally provided with a cover portion arranged along and a retainer portion for retaining a plurality of terminal fittings connected to the conductive plate, and the housing is locked to the plurality of terminal fittings. and has a plurality of lances is provided for retaining these terminal fittings are, the cover portion is provided a plurality of lances a plurality of openings for exposing the external individual, the housing includes a plurality of conductive incorporates alongside the plate, the pair of conductive plates adjacent gap, characterized in was configured to Ru covered from the front by the cover portion.

According to such a configuration, there is no need to fit the male housing and the female housing as in the conventional case, and the housing in which the male and female housings are integrated is adopted, so the number of parts is reduced and the size is reduced. Can be planned. When an integrated housing is used, the bus bar is exposed to the outside through the insertion port of the housing, and there is a concern about the occurrence of condensation or adhesion of foreign matter. The front of the housing is covered by the cover part of the retainer with cover. Therefore, it is possible to prevent leakage due to condensation or foreign matter adhesion. Note that a jig may be inserted from the opening to release the locking by the lance.
In addition, since the gap between the pair of conductive plates is covered from the front by the cover portion, foreign matter can be prevented from entering the gap and leaking.

The following configuration is preferable as an embodiment of the present invention.
The retainer with cover is movable between a temporary locking position that allows insertion and removal of the terminal fitting and a final locking position that locks the terminal fitting and prevents the terminal fitting from being removed. It is good also as a structure which a lance faces outside through an opening, when it exists in a position.
According to such a structure, a terminal metal fitting can be inserted in a housing in the state which mounted | wore the retainer with a cover in the temporary latching position. Moreover, if the retainer with a cover is moved from the temporary locking position to the final locking position, the terminal fitting can be prevented from coming off by the lance and the retainer part. Furthermore, when the retainer with a cover is moved from the main locking position to the temporary locking position, a jig can be inserted from the opening and the locking by the lance can be released.

The terminal fitting may be inserted from a rear surface formed on the opposite side of the front surface of the housing, and a mark indicating the arrangement of the conductive plate may be provided on the rear surface of the housing.
According to such a configuration, when inserting the terminal fitting from the rear surface of the housing, the terminal fitting can be inserted while looking at the mark, so that the terminal fitting and the conductive plate can be connected in a correct combination.

  According to the present invention, it is possible to prevent leakage due to condensation or foreign matter adhesion after the housing is integrated.

Connector exploded perspective view The perspective view of the connector which shows the state which the retainer with a cover exists in a temporary latching position The perspective view of the connector which shows the state which has a retainer with a cover in this locking position Front view of housing Front view of connector showing a state in which the retainer with cover is in the temporary locking position Front view of the connector showing the state in which the retainer with cover is in the final locking position. AA line sectional view in FIG. BB sectional view in FIG. CC sectional view in FIG. Rear view of the connector showing the state that the retainer with cover is in the temporary locking position

<Embodiment>
An embodiment of the present invention will be described with reference to the drawings of FIGS. As shown in FIG. 1, the joint connector 10 according to the present embodiment includes a synthetic resin housing 20, two types of large and small bus bars B <b> 1 and B <b> 2, a retainer 40 with a cover, and the like. The joint connector 10 is used, for example, for branching a branch line drawn from a trunk line of a wire harness (not shown) to take out an electrical signal, or to collectively connect a plurality of electric wires to the ground. Further, a plurality of terminal fittings (not shown) are inserted on the rear surface 11 side of the joint connector 10, and these terminal fittings are connected to the same bus bar B1, B2 to each other. Shorted. Note that a cassette portion 13 to which a metal bracket (not shown) is inserted and attached is provided on the upper surface 12 of the joint connector 10.

  The bus bars B1 and B2 are formed by pressing a metal plate having good conductivity. The bus bars B1 and B2 are configured to include plate-like connecting portions C1 and C2 and a plurality of tab-like terminals T1 and T2 projecting in a square bar shape from the side edges of the connecting portions C1 and C2. . A plurality of retaining protrusions P1 and P2 are provided on the connecting portions C1 and C2 of the bus bars B1 and B2. These retaining projections P1, P2 are arranged at positions corresponding to the tab-shaped terminals T1, T2.

  As shown in FIG. 4, the front surface 21 of the housing 20 is formed with two upper and lower insertion ports 22 into which the bus bars B1 and B2 are inserted. One large bus bar B1 and one small bus bar B2 are inserted side by side into the insertion port 22 of each stage. As shown in FIG. 7, the retaining protrusions P1 and P2 are locked to the step 23 formed on the upper surface of the inner wall of the insertion port 22 to restrict the bus bars B1 and B2 from moving forward. Is retained.

  A cavity 24 into which the terminal fitting is inserted is formed behind the insertion port 22 in the housing 20. A lance 25 is formed on the lower surface of the inner wall of the cavity 24 so as to project forward. The lance 25 can be bent in the vertical direction. A die punching hole 26 for forming the lance 25 is formed in front of the lance 25 in the housing 20. A release jig (not shown) for bending the lance 25 downward can be inserted into the punching hole 26.

  A retainer mounting port 27 is provided behind the lance 25 in the housing 20. As shown in FIG. 1, the retainer mounting port 27 is formed by being cut out so as to open on three surfaces of the lower surface and the left and right side surfaces of the housing 20 so as to cross all the cavities 24. The retainer mounting port 27 is configured to mount a retainer portion 42 of a retainer 40 with a cover, which will be described later.

  The cover-equipped retainer 40 has a substantially box shape with an upper opening, a cover portion 41 having a plate shape that is long in the left-right direction, a grid-shaped retainer portion 42 that is long in the left-right direction, and a connection that connects the cover portion 41 and the retainer portion 42 Part 43. The connecting portion 43 includes a bottom plate 44 and a pair of side plates 45 and 45 that rise upward from both side edges of the bottom plate 44. The cover portion 41 is configured to rise upward from the front edge of the bottom plate 44. The side plate 45 of the connecting portion 43 connects the side edge of the cover portion 41 and the side surface of the retainer portion 42 to each other.

  The cover-mounted retainer 40 is attached to the housing 20 so as to be movable in the vertical direction between a temporary locking position shown in FIG. 2 and a final locking position shown in FIG. A locking protrusion 48 extending in the front-rear direction is formed on the upper edge of the inner surface of the side plate 45. On the other hand, a mounting recess 29 in which the side plate 45 is mounted is formed on the side surface 28 of the housing 20. The mounting recess 29 is formed with a pair of upper and lower protrusions 30 and 31 to which the locking protrusion 48 can be locked. The protrusion 30 positioned on the upper side is a main locking protrusion, and the protrusion 31 positioned on the lower side is a temporary locking protrusion.

  When the locking protrusion 48 is fitted between the temporary locking protrusion 31 and the main locking protrusion 30 and locked in the vertical direction, the cover-mounted retainer 40 is held at the temporary locking position. Further, when the locking protrusion 48 is fitted between the main locking protrusion 30 and the upper edge of the mounting recess 29 and locked in the vertical direction, the covered retainer 40 is held at the main locking position. In the main locking position, as shown in FIG. 3, the side plate 45 is mounted so as to be substantially fitted to the mounting recess 29, and the lower surface of the housing 20 and the bottom plate 44 are disposed substantially flush with each other.

  A plurality of openings 46 are formed in the cover portion 41 so as to penetrate in the thickness direction. The openings 46 have a substantially square shape, and a plurality of openings 46 are arranged in the left-right direction in two steps. As shown in FIG. 7, the opening 46 is arranged so as to be aligned with the mold release hole 26 of the housing 20 at the temporary locking position. Therefore, in the temporary locking position shown in FIG. 5, the lance 25 faces the front of the joint connector 10 through the opening 46 and the mold release hole 26. In this state, a release jig is inserted from the front of the joint connector 10 through the opening 46 and the mold release hole 26, and the tip of the lance 25 is bent downward so that the locking with the terminal fitting can be released.

  On the other hand, in the final locking position shown in FIG. 6, the lance 25 is almost covered by the lower portion of the opening 46 in the cover portion 41, but the bus bars B 1 and B 2 pass through the insertion opening 22 and the opening 46. It will be in the state which faced the front of the joint connector 10. FIG.

  The retainer portion 42 is attached to the retainer attachment opening 27 as the retainer 40 with cover is attached. In the temporary locking position shown in FIG. 7, a pair of upper and lower locking walls 47, 47 constituting the lattice portion of the retainer portion 42 are retracted below the cavity 24 so that the terminal fitting can be inserted into and removed from the cavity. It has become. On the other hand, in the final locking position shown in FIG. 8, the locking walls 47, 47 enter the cavity 24 and can be locked to the terminal fitting from the rear. For this reason, the terminal fitting is prevented from coming off in a double locked state by the lance 25 and the locking wall 47.

  A plurality of partition walls 49 are formed between a pair of openings 46, 46 adjacent in the left-right direction in the cover portion 41. These partition walls 49 are arranged so as to cover the gap between the adjacent tab-shaped terminals T1, T2 of the bus bars B1, B2 inserted into the insertion port 22 from the front. A gap between a pair of adjacent bus bars B1 and B2 is also covered from the front by a partition wall 49. Thereby, between the adjacent pair of bus bars B1 and B2, the generation of dew condensation is restricted by the partition wall 49, and foreign matter adhesion is restricted, so that the bus bars B1 and B2 are restricted from being electrically leaked.

  As shown in FIG. 10, a line 15 indicating the arrangement of the bus bars B <b> 1 and B <b> 2 is formed on the rear surface 11 of the joint connector 10. This line 15 is printed by a laser marker, for example. In FIG. 10, the line 15 on the left side corresponds to the small bus bar B2, and when terminal fittings are inserted into the five cavities 24 from the leftmost side to the fifth, the terminal fittings are short-circuited to each other by the small bus bar B2. Is meant to do. On the other hand, the line 15 on the right side in FIG. 10 corresponds to the large bus bar B1, and when terminal fittings are inserted into the six cavities 24 from the rightmost side to the sixth cavity 24, each terminal fitting is connected by the large bus bar B1. It means to short-circuit each other. In the present embodiment, the line 15 corresponding to the upper cavity 24 is arranged in a narrow area between the cavity 24 and the upper surface 12 of the joint connector 10, and the line 15 corresponding to the lower cavity 24 is the same. It is arranged in a region between the cavity 24 and the lower surface 14 of the joint connector 10. Thereby, a terminal metal fitting and bus bar B1, B2 corresponding to this can be connected correctly.

  The present embodiment is configured as described above, and its operation will be described subsequently. First, a method for assembling the joint connector 10 will be described. When the retainer 40 with a cover is assembled to the housing 20 from below, the retainer portion 42 is attached to the retainer attachment port 27 and the cover portion 41 is disposed along the front surface 21 of the housing 20. During this time, the front portion of the housing 20 relative to the retainer mounting opening 27 is accommodated between the cover portion 41 and the retainer portion 42, and the cover-attached retainer 40 is guided to the temporary locking position while being translated upward.

  When the locking projections 48 get over the temporary locking projections 31 while the side plates 45, 45 open and deform, the side plates 45, 45 elastically return so that the locking projections 48 and the temporary locking projections 31 are aligned. It fits between the latching protrusions 30, and the retainer 40 with a cover reaches a temporary latching position. At this temporary locking position, the locking protrusion 48 is locked to the temporary locking protrusion 31, so that the retainer 40 with cover is prevented from coming out below the housing 20. Further, the locking protrusion 48 is locked to the main locking protrusion 30, so that the cover-mounted retainer 40 is restricted from moving from the temporary locking position to the main locking position. When the terminal fitting is inserted into the cavity 24 from the rear of the housing 20 in this state, the terminal fitting moves without interfering with the locking wall 47, and when the lance 25 is bent downward and reaches the proper mounting position, the lance 25 is moved. Is elastically restored and is locked to the terminal fitting from behind. As a result, the terminal fitting is restricted from coming out of the housing 20 from the cavity 24.

  Next, when the retainer 40 with the cover is moved from the temporary locking position to the final locking position, the both side plates 45, 45 are opened and deformed, and the locking protrusions 48 get over the main locking projections 30. 45 are elastically restored, and the locking protrusion 48 is fitted between the main locking protrusion 30 and the upper edge of the mounting recess 29. In this state, the side plate 45 is mounted in conformity with the mounting recess 29, and the retaining protrusion 48 is locked to the main locking protrusion 30, whereby the cover-equipped retainer 40 is temporarily locked from the main locking position. Movement to the position is restricted. Further, when the retainer portion 42 is mounted substantially in conformity with the retainer mounting opening 27, the locking wall 47 is locked to the terminal fitting from the rear. As a result, the terminal fitting is double-locked by the lance 25 and the retainer portion 42 and is firmly held in the cavity 24 while being prevented from coming out backward.

  In this state, the partition wall 49 is disposed in front of a gap formed between a pair of adjacent bus bars B1 and B2. Therefore, the partition 49 restricts the occurrence of dew condensation between a pair of adjacent bus bars B1 and B2, and restricts the attachment of foreign matter across the bus bars B1 and B2. As a result, the leakage current can be restricted from flowing between a pair of adjacent bus bars B1 and B2.

  As described above, in the present embodiment, since the cover portion 41 is disposed on the front surface of the housing 20, a pair of adjacent bus bars is formed due to condensation between the adjacent bus bars B1 and B2 or foreign matter adhering thereto. B1 and B2 can be prevented from leaking. As a result, even when the housing 20 in which both the male and female housings are integrated is formed, leakage between the pair of adjacent bus bars B1 and B2 can be prevented. Further, since the release jig can be inserted into the mold punching hole 26 through the opening 46 when in the temporary locking position, the release operation of the lance 25 can be performed. Further, since the terminal fitting can be inserted into the cavity 24 while looking at the line 15, the bus bars B1 and B2 and the terminal fitting can be connected in a correct combination.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Although the pair of bus bars B1 and B2 are incorporated in each stage of the housing 20 in the above embodiment, one bus bar may be incorporated in each stage of the housing 20 according to the present invention.

  (2) Although the arrangement of the bus bars B1 and B2 is indicated by the line 15 in the above embodiment, according to the present invention, for example, when three bus bars are incorporated in each stage, the arrangement of the central bus bars is You may display only the line which shows arrangement | positioning of the bus-bar on either side, without displaying the line to show.

  (3) Although the retainer 40 with a cover having the side plate 45 is illustrated in the above embodiment, according to the present invention, a retainer with a cover in which the cover portion and the retainer portion are connected only by the bottom plate without providing the side plate may be used.

10 ... Joint connector 20 ... Housing 21 ... Front 22 ... Insert 25 ... Lance 40 ... Retainer with cover 41 ... Cover part 42 ... Retainer part 46 ... Opening 49 ... Partition B1, B2 ... Bus bar (conductive plate)

Claims (3)

A conductive plate;
A housing having an insertion port for inserting the conductive plate, and holding the conductive plate inserted into the insertion port from the front;
A cover-attached retainer integrally provided with a cover portion disposed along the front surface of the housing in which the insertion port is formed and a plurality of terminal fittings that are connected to the conductive plate to prevent the terminal fittings from coming off. ,
The housing is provided with a plurality of lances that are locked to the plurality of terminal fittings to prevent the terminal fittings from being detached, and the cover portion has a plurality of openings that allow the plurality of lances to face the outside. Are provided individually ,
Connector to said housing, said plurality of conductive plates is built alongside a pair of the conductive plates adjacent gap, characterized by Rukoto covered from the front by the cover portion.   The retainer with a cover is movable between a temporary locking position that allows insertion and removal of the terminal fitting and a final locking position that is locked to the terminal fitting and prevents the terminal fitting from being removed. The connector according to claim 1, wherein the lance faces the outside through the opening when in the temporary locking position. The terminal fitting is inserted from a rear surface formed on the opposite side of the front surface of the housing, and a mark indicating the arrangement of the conductive plate is provided on the rear surface of the housing. The connector according to claim 1 , wherein the connector is characterized by the following.

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