JP2014072058A - Joint connector - Google Patents

Abstract

A joint connector having a novel configuration for waterproofing inside a housing is provided.
A first packing 40 that is pressed and deformed by a rear holder 80 fills a space between the other opening of the terminal accommodating chamber 21 and a connecting portion inserted in the other opening, and is pressed by the rear holder 80. The first packing 40 and the second packing 70 deformed in this manner cover the outer surface of the connecting portion 52 excluding the connection surface 56 with the grounding portion 53.
[Selection] Figure 7

Description

  The present invention relates to a joint connector.

  As a joint connector for electrically connecting a plurality of counterpart terminals to each other, for example, as shown in FIG. 8, a terminal 503 connected to a plurality of counterpart terminals has an earth connection portion 505 for connecting to an external ground circuit. A joint connector having a ground connection portion 505 led out from a wall portion 507 of the connector housing 501 is known. (For example, refer to Patent Document 1).

JP-A-6-84565

  The joint connector disclosed in Patent Document 1 is formed by insert-molding the terminal 503 into the connector housing 501 in a state where the ground connection portion 505 is led out from the wall portion 507. Thereby, the waterproof property inside the connector housing 501 is ensured.

  In recent years, there has been a demand for a joint connector for waterproofing the inside of the housing with a configuration different from that of the conventional joint connector.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a joint connector having a novel configuration for waterproofing the inside of the housing.

In order to achieve the above-described object, the joint connector according to the present invention is characterized by the following (1) to (5).
(1) A housing having a plurality of terminal accommodating chambers that are formed in a cylindrical shape having both ends opened, and that accommodate female terminals inserted from one of the openings;
A plurality of connecting portions that are respectively inserted into the terminal accommodating chambers from the other of the openings and are electrically connected to the female terminals accommodated in the terminal accommodating chambers, and are located outside the terminal accommodating chambers. A conductive metal joint terminal having a connecting portion for connecting one end of the plurality of connecting portions, and a grounding portion extending from the connecting portion and connected to an external grounding circuit;
A first elastic member disposed between the housing and the connecting portion in an insertion direction in which the connection portion is inserted;
A second elastic member in which the connecting portion is disposed between the first elastic member in the insertion direction;
The first elastic member, the connecting portion, and the second elastic member are sandwiched in this order from the housing side between the housing and the housing in the insertion direction. A holder to be fixed;
With
The first elastic member deformed by being pressed by the holder fills a space between the other opening of the terminal accommodating chamber and the connecting portion inserted in the other opening,
The first elastic member and the second elastic member that are deformed by being pressed by the holder cover the outer surface of the connecting portion except the connection surface with the grounding portion;
about.
(2) A joint connector having the configuration of (1),
In the first elastic member, a plurality of connection portion insertion holes through which the plurality of connection portions are respectively inserted are formed,
When pressed by the holder, the inner surface of the connection portion insertion hole is in close contact with the outer surface of the connection portion,
about.
(3) A joint connector having the structure of (1) or (2),
The first elastic member and the second elastic member have the same shape,
The holder has a covering portion that covers a side surface of the second elastic member on the holder side when engaged with the housing.
about.
(4) A joint connector having any one of the constitutions (1) to (3),
The first elastic member is formed with a locking projection that extends in the insertion direction,
The second elastic member is formed with a fitting hole into which the locking projection is fitted,
The connecting portion is formed with a through hole or a notch through which the locking protrusion is inserted.
about.
(5) A joint connector having any one of the constitutions (1) to (4),
The holder is formed with a first locking claw used for engagement with the housing, and a second locking claw extending in the insertion direction,
The first elastic member and the second elastic member are each formed with a locking claw insertion hole through which the second locking claw is inserted,
The holder, the first elastic member, and the second elastic member are engaged by the second locking claw being locked in the locking claw insertion hole of the first elastic member. ,
about.

In the joint connector having the above configuration (1), the space between the other opening of the terminal accommodating chamber and the connecting portion is filled with the first elastic member without any gap, thereby being watertightly sealed. Moreover, the outer surface except the connection surface with the grounding part of a connection part is sealed watertight by coat | covering with the 1st elastic member and the 2nd elastic member. Thereby, the other opening of the terminal accommodating chamber is sealed in a watertight manner, and the waterproofness inside the housing is ensured.
In the joint connector having the configuration of (2) above, the inner surface of the connection portion insertion hole formed in the first elastic member is in close contact with the outer surface of the connection portion when pressed by the holder, and therefore connected to the other opening of the terminal accommodating chamber. The space between the portions can be effectively filled with the first elastic member.
In the joint connector having the configuration (3), since the first elastic member and the second elastic member have the same shape, the first elastic member and the second elastic member can be exchanged with each other. This is possible and improves workability. Moreover, since the covering portion of the holder covers the hole, the notch, and the like formed in the second elastic member, the waterproofness inside the housing can be ensured.
In the joint connector having the above configuration (4), the engaging protrusion of the first elastic member inserted through the through hole or the notch of the connecting portion is inserted into the insertion hole of the second elastic member. The first elastic member, the second elastic member, and the joint terminal are engaged with each other. Thereby, at the time of the assembly work, since the operator only has to assemble the first elastic member, the second elastic member, and the joint terminal engaged in this manner with respect to the housing, each member can be easily attached. Can be assembled. Moreover, since it is not necessary to assemble these members separately, the assembling accuracy is improved.
In the joint connector having the above configuration (5), the second locking claw of the holder inserted through the locking claw insertion holes of the first elastic member and the second elastic member is used to lock the first elastic member. By engaging with the claw insertion hole, the holder, the first elastic member, and the second elastic member are engaged. Thereby, at the time of work, since the worker has only to assemble the holder, the first elastic member, and the second elastic member engaged in this way with respect to the housing, each member can be easily assembled. Can do. Moreover, since it is not necessary to assemble these members separately, the assembling accuracy is improved.

  The joint connector according to the present invention can provide a joint connector having a novel configuration for waterproofing the inside of the housing.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view showing a state before the connector housing 20 constituting the joint connector 10 and the holder assembly 30 are fitted together. FIG. 2 is an exploded perspective view of the holder assembly 30 shown in FIG. FIG. 3 is a perspective view showing a procedure for assembling the first packing 40, the joint terminal 50, and the second packing 70 to obtain the subassembly 35. FIG. 4 is a perspective view showing a procedure for obtaining the holder assembly 30 by assembling the rear holder 80 to the sub-assembly 35 assembled in FIG. 3. FIG. 5 is a perspective view of the joint connector 10 after fitting as viewed from the rear side. FIG. 6 is a first operation explanatory view for explaining a structure for ensuring the waterproof property of the joint connector 10. FIG. 6 (a) is a view of the connector housing 20 and the holder assembly 30 before fitting shown in FIG. FIG. 6B is a partially enlarged longitudinal sectional view at a position corresponding to the VI-VI line, and FIG. 6B is a partially enlarged arrow of the connector housing 20 and the holder assembly 30 after fitting, taken along the line VI-VI in FIG. FIG. FIG. 7 is a second operation explanatory view for explaining the structure for securing the waterproof property of the joint connector 10. FIG. 7A is a view of the connector housing 20 and the holder assembly 30 before the fitting shown in FIG. FIG. 7B is a partially enlarged horizontal sectional view at a position corresponding to the line VII-VII, and FIG. 7B is a partially enlarged arrow of the connector housing 20 and the holder assembly 30 after fitting, taken along the line VII-VII in FIG. FIG. FIG. 8 is a perspective view showing a conventional joint connector.

  Specific embodiments of the joint connector according to the present invention will be described below with reference to the drawings.

  1 to 7 show a joint connector 10 according to the embodiment. Hereinafter, in the present specification, the front side, the rear side, the upper side, the lower side, the left side, and the right side are defined and described as indicated by arrows in each drawing.

  The joint connector 10 is, for example, a connector used to electrically connect a plurality of female terminals 15 (see FIG. 6) that are respectively fixed to the tips of the electric wires W, as shown in FIG. A resin-made connector housing 20 that is formed in a cylindrical shape having both ends opened and that has a plurality of terminal accommodating chambers 21 for accommodating the female terminals 15 inserted from the rear opening, and a front portion of the connector housing 20 And a holder assembly 30 that is attached to the hood portion 23 formed from the front and that is partially fitted into the connector housing 20. As shown in FIG. 5, the electric wire W is provided with a rubber plug 90 and a waterproof plug 95 at one end, and the electric wire W is a connector housing in a state where the rear end side of the terminal accommodating chamber 21 is sealed watertight. 20 is derived from the rear side.

  As shown in FIGS. 1 and 2, the holder assembly 30 is electrically connected to the plurality of female terminals 15 to connect the female terminals 15 to each other and to an external ground circuit (not shown). Conductive metal and plate-like joint terminals 50 formed by bending, a first packing 40 formed of an elastic material arranged on the front side of the joint terminals 50, and an elastic material arranged on the rear side of the joint terminals 50 From the connector housing 20 side between the second packing 70 formed by the connector housing 20 and the connector housing 20, the first packing 40, a connecting portion 52 of a joint terminal 50 described later, And a resin rear holder 80 for holding and fixing the second packing in this order in the front-rear direction. In addition, the 1st packing 40 and the 2nd packing 70 are the same elastic members formed in the same shape with the same material.

  As shown in FIG. 2, the joint terminal 50 is inserted from the opening on the front side of the terminal accommodating chamber 21 and is electrically connected to the female terminal 15 accommodated in the terminal accommodating chamber 21. A connecting portion 52 that joins one end of the plurality of connecting portions 51 (that is, the front end side of the connecting portion 51) located outside the terminal accommodating chamber 21 at the time of the connection, and extends from the connecting portion 52 to the outside. And a ground part 53 connected to the ground circuit. The ground portion 53 is formed with a hole 53a used for connection to an external ground circuit. In addition, circular through holes 54 and 55 (see FIG. 3) through which engaging protrusions 41 and 71 formed in a first packing 40 and a second packing 70 described later are inserted into the connecting portion 52, respectively. Are formed side by side in the left-right direction.

  As shown in FIG. 2, the first packing 40 as the first elastic member formed in a plate shape is a flat plate having a substantially rectangular cross section in accordance with the shape of the hood portion 23 of the connector housing 20. And a lead-out portion 44 formed so as to protrude from a part of the left and right side surfaces of the flat plate portion 46. The flat plate portion 46 has a flat plate-like raised portion 48 formed by raising the central portion rearward. Further, on the edge of the front surface of the flat plate portion 46, a ridge 43 extending forward is formed over the entire circumference except for a part of the lead-out portion 44. The flat plate portion 46 is formed with a plurality of connection portion insertion holes 42 through which the plurality of connection portions 51 of the joint terminal 50 are respectively inserted at positions corresponding to the arrangement of the connection portions 51. Further, as shown in FIG. 2, the flat plate portion 46 is formed side by side with two locking claw insertion holes 45 through which a second locking claw 83 of the rear holder 80 described later is inserted and locked. The connection part insertion hole 42 is formed side by side on the left and right. In addition, the front surface of the flat plate portion 46 is inserted into the through hole 54 of the connecting portion 52 and is fitted into a fitting hole 77 formed in the second packing 70 described later, and is a latch extending in a columnar shape in the front-rear direction. A protrusion 41 (see FIG. 3) is formed. The flat plate portion 46 is formed with a circular insertion hole 47 into which a locking projection 71 formed in a second packing 70 described later is inserted. The locking protrusion 41 and the fitting hole 47 are formed side by side in the left-right direction.

  As described above, the second packing 70 as the second elastic member formed in a plate shape is formed in the same shape with the same material as the first packing 40, and as shown in FIG. It has a flat plate portion 76 whose surface is formed in a substantially rectangular shape, and a lead-out portion 74 formed so as to protrude from part of the left and right side surfaces of the flat plate portion 76. The flat plate portion 76 has a flat plate-like raised portion 78 formed by protruding a central portion forward. On the edge of the rear surface of the flat plate portion 76, a ridge 73 extending rearward is formed over the entire circumference except for a part of the lead-out portion 74. In the flat plate portion 76, a plurality of connection portion insertion holes 72 through which the plurality of connection portions 51 of the joint terminal 50 are inserted are formed at positions corresponding to the arrangement of the connection portions 51. In addition, the flat plate portion 76 has two locking claw insertion holes 75 into which the second locking claw 83 of the rear holder 80 is inserted and locked, as shown in FIG. Under the insertion hole 72, it is formed side by side on the left and right. Further, on the rear surface of the flat plate portion 76, there is formed a locking protrusion 71 extending in a columnar shape in the front-rear direction, which is inserted into the through hole 55 of the connecting portion 52 and is inserted into the insertion hole 47 of the first packing 40. Has been. The flat plate portion 76 is formed with a circular insertion hole 77 into which the locking projection 41 formed in the first packing 40 is inserted.

  In a state where the first packing 40, the joint terminal 50, and the second packing 70 are assembled as a sub-assembly 35 to be described later, as shown in FIGS. 4, 6 (a), and 7 (a). In addition, the protrusion 43 of the first packing 40 and the protrusion 73 of the second packing 70 are in close contact with each other, and the left and right sides are between the lead-out portion 44 of the first packing 40 and the lead-out portion 74 of the second packing 70. Leading openings 37, 38 that open in the direction are defined.

  As shown in FIG. 2, the rear holder 80 includes a covering portion 85 that is formed in a rectangular plate shape in accordance with the shapes of the first packing 40 and the second packing 70 that are to be sandwiched. From the left and right side surfaces of the covering portion 85, four first locking claws 81 used for locking the locking portion 25 formed on the connector housing 20 to engage the rear holder 80 and the connector housing 20 are used. Is formed. Further, from the rear surface of the covering portion 85, the locking claw insertion hole 45 of the first packing 40 and the locking claw insertion hole 75 of the second packing 70 are inserted, and the locking claw of the first packing 40. Two second locking claws 83 that engage with the insertion hole 45 and engage the rear holder 80, the first packing 40, and the second packing 70 extend rearward.

  Next, a method for assembling the joint connector 10 will be described. Hereinafter, in the description of the method of assembling the joint connector 10, an aspect in which an operator performs work related to the assembly will be described, but the embodiment of the present invention is not limited thereto. For example, a mode in which part or all of the work related to assembly is performed by a mechanical device may be employed.

FIG. 3 is a perspective view showing a procedure for assembling the first packing 40, the joint terminal 50, and the second packing 70 to obtain the subassembly 35.
As shown in FIG. 3, the operator inserts the locking protrusion 71 of the second packing 70 into the through hole 54 of the connecting portion 52 and then inserts it into the insertion hole 47 of the first packing 40. At the same time, the locking protrusion 41 of the first packing 40 is inserted into the through hole 55 of the connecting portion 52 and is inserted into the insertion hole 77 of the second packing 70. At this time, each connection portion 51 is inserted into the connection portion insertion hole 42 of the first packing 40. Through the above operation, the sub-assembly 35 in which the first packing 40, the joint terminal 50, and the second packing 70 are assembled together is obtained. In the assembled state, as shown in FIGS. 4, 6 (a), and 7 (a), the protrusion 43 of the first packing 40 and the protrusion 73 of the second packing 70 From one of the lead-out openings 37 and 38 formed between the lead-out portion 44 of the first packing 40 and the lead-out portion 74 of the second packing 70 (in this embodiment, two lead-out openings). 37) The grounding portion 53 is led out from the lead-out opening 37 located on the left side of 37,38.

FIG. 4 is a perspective view showing a procedure for obtaining the holder assembly 30 by assembling the rear holder 80 to the assembled sub-assembly 35.
As shown in FIG. 4, the operator inserts the second locking claw 83 of the rear holder 80 into the locking claw insertion hole 45 of the first packing 40 and the locking claw insertion hole 75 of the second packing 70. Then, the claw portion 83 a formed at the tip of the second locking claw 83 is locked to the rear edge of the locking claw insertion hole 45 of the first packing 40, and the sub assembly 35 and the rear holder 80. And engage. Thereby, the holder assembly 30 in which the sub assembly 35 and the rear holder 80 are assembled together is obtained.

  Thereafter, as shown in FIGS. 1 and 5, the operator inserts the holder assembly 30 into the hood of the connector housing 20 so that the connecting portion 51 extending backward is inserted from the front opening of the terminal housing chamber of the connector housing 20. The holder assembly 30 is fitted to the connector housing 20 by being attached to the portion 23 from the front. At this time, the operator causes the first locking claws 81 of the rear holder 80 to be locked to the locking portions 25 of the connector housing 20 to engage the rear holder 80 and the connector housing 20. Through the above operation, the first packing 40, the connecting portion 52, and the second packing 70 are sandwiched and fixed in this order from the connector housing 20 side between the rear holder 80 and the connector housing 20. That is, the first packing 40, the connecting portion 52, and the second packing 70 are pressed and urged rearward by the rear holder 80.

  Next, the structure for ensuring the waterproof property inside the connector housing 20 in the joint connector 10 will be described. FIG. 6 is a first operation explanatory view for explaining a structure for ensuring the waterproofness inside the connector housing 20. FIG. 6A is a view of the connector housing 20 and the holder assembly 30 before fitting. FIG. 6B is a partially enlarged longitudinal sectional view at a position corresponding to the VI-VI line of FIG. 5, and FIG. 6B is a partially enlarged view of the connector housing 20 and the holder assembly 30 after the fitting, taken along the line VI-VI of FIG. It is an arrow view. FIG. 7 is a second operation explanatory view for explaining a structure for ensuring the waterproofness inside the connector housing 20. FIG. 7A is a view of the connector housing 20 and the holder assembly 30 before fitting, FIG. FIG. 7B is a partially enlarged horizontal sectional view at a position corresponding to the VII-VII line of FIG. 5, and FIG. It is an arrow view.

  Before the connector housing 20 and the holder assembly 30 are fitted, there is a gap between the first packing 40 and the second packing 70 as shown in FIGS. 6 (a) and 7 (a). Water can enter the gap through the connecting portion insertion hole 72 communicated with the gap. Further, a gap exists also between the hood portion 23 of the connector housing 20 and the first packing 40 and the second packing 70, and through the lead-out openings 37 and 38 and the fitting holes 77 communicated with the gap. Water can enter the gap. For this reason, before the connector housing 20 and the holder assembly 30 are fitted, the first packing 40 and the second packing 70 are not in a watertight structure.

  On the other hand, after the connector housing 20 and the holder assembly 30 are fitted, as shown in FIGS. 6B and 7B, the first packing 40 and the second packing 70 are moved by the rear holder 80. The first packing 40 and the second packing 70 are in close contact with each other by being pressed rearward. Further, the hood portion 23 of the connector housing 20, the first packing 40 and the second packing 70 are in close contact with each other. Further, the first packing 40 and a part of the connecting portion 52 facing the first packing 40 are in close contact with each other. Further, the second packing 70 and a part of the connecting portion 52 facing the second packing 70 are in close contact with each other.

  More specifically, after fitting, the first packing 40 that is pressed and deformed by the covering portion 85 of the rear holder 80 is inserted into the opening 21a in the front of the terminal accommodating chamber 21 and the opening 21a. The space between the portions 51 is filled without any gaps. Further, the deformed first packing 40 is in close contact with the inner surface of the hood portion 23 and fills the space between the hood portion 23 without a gap. At this time, the inner surface of the connection portion insertion hole 42 is in close contact with the outer surface of the connection portion 51, and the space between the inner surface of the connection portion insertion hole 42 and the connection portion 51 is filled with no gap. At this time, the outer surfaces of the locking projections 41 and 71 and the inner surfaces of the insertion holes 47 and 47 are in close contact with each other, and the gaps between the locking projections 41 and 71 and the insertion holes 47 and 47 are filled with no gap.

  Further, the first packing 40 and the second packing 70 that are deformed by being pressed by the covering portion 85 of the rear holder 80 are the outer surfaces of the outer surface of the connecting portion 52 except the connecting surface 56 between the connecting portion 52 and the grounding portion 53. In close contact, the gap between the connecting portion 52 and the outer surface excluding the connecting surface 56 is filled to cover the outer surface. At this time, the lead-out openings 37 and 38 are closed. Thereby, in the state where the first packing 40 and the second packing 70, the connecting portion 52, and the grounding portion 53 in the lead-out opening 37 are in close contact with each other and filled with no gap, the lead-out opening 37 The grounding part 53 is derived.

  In addition, the second packing 70 that is pressed and deformed by the covering portion 85 of the rear holder 80 is in close contact with the first packing 40, and fills the first packing 40 without any gap. Further, the deformed second packing 70 is in close contact with the inner surface of the hood portion 23 and fills the space between the hood portion 23 without a gap. At this time, the connection portion insertion hole 72 is closed.

  In addition, after the fitting, the rear surface of the covering portion 85 of the rear holder 80 is in close contact with the front surface of the second packing (the outer surface on the rear holder 80 side), and fills the second packing without any gap.

  As described above, after the connector housing 20 and the holder assembly 30 are fitted, the hood portion 23 of the connector housing 20 and the opening 21 a of the terminal accommodating chamber 21 are filled with the first packing 40 and the second packing 70. Thus, it is sealed watertight, and the waterproofness inside the joint connector 10 is ensured.

  Below, the effect | action and effect of the joint connector 10 which concern on this embodiment are demonstrated.

The joint connector 10 according to the present embodiment is formed in a cylindrical shape having both ends opened, and a connector housing 20 having a plurality of terminal accommodating chambers 21 for accommodating the female terminals 15 inserted from one of the openings. And a plurality of connecting portions 51 inserted into the terminal accommodating chamber 21 from the other opening 21 a of the openings and electrically connected to the female terminals 15 accommodated in the terminal accommodating chamber 21, and the terminal accommodating chamber 21. A conductive metal joint terminal 50 having a connecting portion 52 that joins one ends of a plurality of connecting portions 51 located outside, and a grounding portion 53 that extends from the connecting portion 52 and connects to an external grounding circuit; And the first packing 40 disposed between the connector housing 20 and the connecting portion 52 in the insertion direction of the connection portion 51, and the first packing 40 in the insertion direction. And the connector housing 20 in the insertion direction of the connecting portion 51 into the terminal accommodating chamber 21. Therefore, a rear holder 80 is provided that sandwiches and fixes the first packing 40, the connecting portion 52, and the second packing 70 in this order. Then, the first packing 40 which is pressed and deformed by the rear holder 80 fills the space between the other opening 21a of the terminal accommodating chamber 21 and the connection portion 51 inserted into the other opening 21a, and is pressed by the rear holder 80. The deformed first packing 40 and second packing 70 cover the outer surface of the connecting portion 52 excluding the connection surface 56 with the grounding portion 53.
As a result, the space between the other opening 21 a of the terminal accommodating chamber 21 and the connection portion 51 is filled with the first packing 40 without any gap, thereby being sealed watertight. Further, the outer surface of the connecting portion 52 excluding the connection surface 56 with the grounding portion 53 is covered with the first packing 40 and the second packing 70 to be sealed watertight. Thereby, the other opening 21a of the terminal accommodating chamber 21 is sealed in a watertight manner, and the waterproofness inside the connector housing 20 is ensured.
As a result, according to the joint connector 10 according to the present embodiment, it is possible to provide a joint connector having a novel structure for waterproofing the connector housing 20. That is, it is possible to provide a joint connector having a structure for waterproofing the inside of the connector housing 20 by assembling each member constituting the joint connector 10 without using insert molding as in the prior art. For this reason, according to the joint connector 10 which concerns on this embodiment, the simplification of a manufacturing process and cost reduction can be implement | achieved.

Further, in the joint connector 10 according to the present embodiment, the first packing 40 is formed with a plurality of connection portion insertion holes 42 through which the plurality of connection portions 51 are respectively inserted. The inner surface of the hole 42 is in close contact with the outer surface of the connecting portion 51.
Thereby, when pressed by the rear holder 80, the inner surface of the connection portion insertion hole 42 formed in the first packing 40 is in close contact with the outer surface of the connection portion 51, so the other opening 21 a of the terminal accommodating chamber 21 and the connection portion 51 Can be effectively filled with the first packing 40.

In the joint connector 10 according to the present embodiment, the first packing 40 and the second packing 70 have the same shape, and the rear holder 80 of the second packing 70 is engaged with the rear holder 80 when engaged with the connector housing 20. It has the coating | coated part 85 which covers the 80 side surface.
Thereby, since the 1st packing 40 and the 2nd packing 70 are the same shape, it is not necessary to manufacture the 1st packing 40 and the 2nd packing 70 as separate parts, and there are few parts. , Increase in manufacturing cost can be suppressed. Moreover, since the 1st packing 40 and the 2nd packing 70 can mutually replace | exchange an assembly location, workability | operativity improves. Further, since the covering portion 85 of the rear holder 80 covers the connection portion insertion hole 72 and the fitting hole 77 formed in the second packing 70, the waterproofness inside the connector housing 20 can be ensured.

In the joint connector 10 according to the present embodiment, the first packing 40 is provided with a locking projection 41 extending in the insertion direction of the connection portion 51 into the terminal accommodating chamber 21, and the second packing 70 has A fitting hole 77 into which the locking projection 41 is inserted is formed, and a through hole 55 through which the locking projection 41 is inserted is formed in the connecting portion 52.
As a result, the locking protrusion 41 of the first packing 40 inserted through the through hole 55 of the connecting portion 52 is inserted into the insertion hole 77 of the second packing 70, whereby the first packing 40 and the first packing 40. 2 packing 70 and the joint terminal 50 are engaged. Thereby, at the time of the assembling work, the operator only has to assemble the first packing 40, the second packing 70, and the joint terminal 50 thus engaged with the connector housing 20, so that each member Can be assembled easily. Moreover, since it is not necessary to assemble these members separately, the assembling accuracy is improved.

In the joint connector 10 according to the present embodiment, the rear holder 80 includes a first locking claw 81 used for engagement with the connector housing 20, and the covering portion 85 to the terminal accommodating chamber 21 of the connecting portion 51. A second locking claw 83 extending in the insertion direction is formed, and the locking claw insertion holes 45 and 75 through which the second locking claw 83 is inserted into the first packing 40 and the second packing 70. Are formed, and the second locking claw 83 is locked in the locking claw insertion hole 45 of the first packing 40, whereby the rear holder 80, the first packing 40, and the second packing 70 are engaged. Is done.
As a result, the second locking claws 83 of the rear holder 80 inserted into the locking claw insertion holes 45 and 75 of the first packing 40 and the second packing 70 become the locking claw insertion holes of the first packing 40. By engaging with 45, the holder, the first packing 40, and the second packing 70 are engaged. Thereby, at the time of work, since the worker has only to assemble the rear holder 80, the first packing 40, and the second packing 70 thus engaged with the connector housing 20, each member can be easily attached. Can be assembled. Moreover, since it is not necessary to assemble these members separately, the assembling accuracy is improved.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the joint connector 10 according to the present embodiment, the first packing 40 and the second packing 70 are formed in the same shape with the same material, but the first packing 40 and the second packing 70 are the same. The packing 70 may be formed in a different shape.

  Further, in the joint connector 10 according to the present embodiment, the rear holder 80 includes the covering portion 85 formed in a rectangular plate shape that covers the side surface of the second packing 70 on the rear holder 80 side when engaged with the connector housing 20. The rear holder 80 may be formed in a shape that can be fixed by sandwiching the first packing 40, the connecting portion 52, and the second packing 70 with the connector housing 20. The shape may be different from the shape in the form.

  Further, in the joint connector 10 according to the present embodiment, the connecting portion 52 has a through hole 55 through which the locking protrusion 41 of the first packing 40 is inserted. The notch portion into which the locking projection 41 is inserted is formed by cutting out a part of the connecting portion 52, and the locking projection 41 inserted into the notch portion is the second projection. The first packing 40, the second packing 70, and the joint terminal 50 may be engaged by being fitted into the fitting hole 77 of the packing 70.

DESCRIPTION OF SYMBOLS 10 Joint connector 20 Connector housing 21 Terminal accommodating chamber 21a Opening 23 Hood part 25 Locking part 30 Holder assembly 35 Subassembly 37, 38 Derivation opening part 40 1st packing (1st elastic member)
41 Locking Protrusion 42 Connecting Portion Insertion Hole 43 Projection 44 Deriving Portion 45 Locking Claw Insertion Hole 46 Flat Plate 47 Insertion Hole 48 Raising Portion 50 Joint Terminal 51 Connection Portion 52 Connection Portion 53 Grounding Portion 53a Holes 54, 55 56 Connection surface 70 Second packing (second elastic member)
71 Locking projection 72 Connecting portion insertion hole 73 Projection line 74 Deriving portion 75 Locking claw insertion hole 76 Flat plate portion 77 Insertion hole 78 Raised portion 80 Rear holder 81 First locking claw 83 Second locking claw 90 Rubber plug 95 Waterproof plug W Electric wire

Claims (5)

A housing having a plurality of terminal accommodating chambers that are formed in a cylindrical shape having both ends opened, and that accommodate female terminals inserted from one of the openings;
A plurality of connecting portions that are respectively inserted into the terminal accommodating chambers from the other of the openings and are electrically connected to the female terminals accommodated in the terminal accommodating chambers, and are located outside the terminal accommodating chambers. A conductive metal joint terminal having a connecting portion for connecting one end of the plurality of connecting portions, and a grounding portion extending from the connecting portion and connected to an external grounding circuit;
A first elastic member disposed between the housing and the connecting portion in an insertion direction in which the connection portion is inserted;
A second elastic member in which the connecting portion is disposed between the first elastic member in the insertion direction;
The first elastic member, the connecting portion, and the second elastic member are sandwiched in this order from the housing side between the housing and the housing in the insertion direction. A holder to be fixed;
With
The first elastic member deformed by being pressed by the holder fills a space between the other opening of the terminal accommodating chamber and the connecting portion inserted in the other opening,
The first elastic member and the second elastic member that are deformed by being pressed by the holder cover the outer surface of the connecting portion except the connection surface with the grounding portion;
A joint connector characterized by that. In the first elastic member, a plurality of connection portion insertion holes through which the plurality of connection portions are respectively inserted are formed,
When pressed by the holder, the inner surface of the connection portion insertion hole is in close contact with the outer surface of the connection portion,
The joint connector according to claim 1. The first elastic member and the second elastic member have the same shape,
The holder has a covering portion that covers a side surface of the second elastic member on the holder side when engaged with the housing.
The joint connector according to claim 1 or 2, characterized in that The first elastic member is formed with a locking projection that extends in the insertion direction,
The second elastic member is formed with a fitting hole into which the locking projection is fitted,
The connecting portion is formed with a through hole or a notch through which the locking protrusion is inserted.
The joint connector according to any one of claims 1 to 3, wherein: The holder is formed with a first locking claw used for engagement with the housing, and a second locking claw extending in the insertion direction,
The first elastic member and the second elastic member are each formed with a locking claw insertion hole through which the second locking claw is inserted,
The holder, the first elastic member, and the second elastic member are engaged by the second locking claw being locked in the locking claw insertion hole of the first elastic member. ,
The joint connector according to any one of claims 1 to 4, wherein:

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