JP2006190549A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retain a condition wherein a collective rubber stopper is surely and normally assembled to a housing. <P>SOLUTION: This connector is equipped with the housing 10, a terminal fitting 40 inserted into the cavity 11 of the housing 10 from the rear, a cable 43 connected to the rear end of the terminal fitting 40, and the collective rubber stopper 20 stored in the storage space 16 of the housing 10 to make the cable 43 fluid-tightly pass through. Since the collective rubber stopper 20 is assembled to the storage space 16 of the housing 10 perpendicularly to the inserting direction of the terminal fittings 40 inserted into the cavity 11, the collective rubber stopper 20 is not relatively displaced toward the rear of the housing 10 even if rearward tension force is applied to the cable 43, and is retained in a normal assembled condition. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector having a batch rubber stopper.

As a connector equipped with a batch rubber plug, by inserting a terminal fitting from the back into the cavity provided in the housing, and penetrating the wire in a liquid-tight manner through each through hole of the batch rubber plug attached to the rear end of the housing, Some are designed to prevent water from entering the cavity. In this type of connector, a holder is attached as a means for restricting the lump rubber plug from separating backward with respect to the housing, and a terminal hole and a window hole for allowing an electric wire to pass through correspond to each cavity. It is penetrated by. In addition, as a connector provided with the lump rubber stopper, there is one disclosed in Patent Document 1.
Japanese Patent Laid-Open No. 5-266694

In the conventional connector, the batch rubber plug is assembled to the housing from the rear, and the holder is also assembled from the rear. For this reason, when a rearward tensile force acts on the electric wire, the holder may come off from the housing or be in an improper assembled state. If it becomes like this, a lump rubber stopper will not be hold | maintained in a regular assembly position with respect to a housing, and there exists a concern that sealing performance may fall.
The present invention has been completed based on the above-described circumstances, and an object of the present invention is to ensure that a batch rubber plug can be securely held in a properly assembled state with respect to a housing.

  As means for achieving the above-mentioned object, the invention of claim 1 is connected to a housing having a cavity, a plurality of terminal fittings inserted from the rear with respect to the cavity, and a rear end of the terminal fitting. In a connector comprising: an electric wire; and a collective rubber plug that is formed so as to correspond to the cavity with a plurality of sealing holes that penetrate the electric wire in a liquid-tight manner and is assembled in a state of being accommodated in the accommodating space of the housing The housing space is formed as an assembly opening on the outer surface of the housing in a direction intersecting the insertion direction of the terminal fitting with respect to the cavity, and the collective rubber plug is inserted into the housing from the assembly opening. It is characterized by being assembled in the space.

  According to a second aspect of the present invention, in the one according to the first aspect, a frame-like lip portion surrounding the formation region of the plurality of seal holes is formed on both front and rear end faces of the collective rubber plug, and the lip portion Is characterized in that it is elastically contacted with the inner surface of the housing space in a liquid-tight manner.

<Invention of Claim 1>
The batch rubber plug is assembled to the housing space in a direction that intersects the insertion direction of the terminal fitting with respect to the cavity. It is held in a properly assembled state without relative displacement rearward with respect to the housing.

<Invention of Claim 2>
Since a part of the outer periphery of the batch rubber plug corresponds to the assembly port, the outer peripheral surface of the batch rubber plug cannot seal between the outer surface of the batch rubber plug and the inner surface of the housing space. However, since the lip portions are formed on the front and rear end faces of the collective rubber plug, the end space of the collective rubber plug can be sealed from the housing space.

<Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The connector according to this embodiment includes a housing 10, a terminal fitting 40, and a batch rubber plug 20.
The housing 10 is made of synthetic resin, and has a form in which a terminal housing portion 11 having a rectangular block shape and a support portion 13 connected to the rear end of the terminal housing portion 11 are integrally formed. A plurality of cavities 14 elongated in the front-rear direction are formed in the terminal accommodating portion 11 so as to be aligned vertically and horizontally (up, down, left and right), and the terminal fittings 40 are individually inserted into the cavities 14 from the rear. It has become. Each cavity 14 is formed with a lance 15 that cantilevered forward along the inner wall thereof.

  The support portion 13 has a rectangular block shape that is slightly larger than the terminal accommodating portion 11, and a substantially rectangular accommodating space 16 that communicates with the openings at the rear ends of all the cavities 14 is formed in the support portion 13. It is configured. The accommodating space 16 is a space for penetrating the terminal fitting 40 inserted into the cavity 14 and the electric wire 43 connected to the terminal fitting 40 and accommodating the collective rubber plug 20. A plurality of terminal insertion ports 12 penetrating in the front-rear direction to open the accommodation space 16 at the rear end surface of the support portion 13 are formed on the rear surface wall of the support portion 13 in an arrangement corresponding to each cavity 14. On the inner surface of the accommodation space 16, a holding groove 17 is formed in which the upper and lower surfaces and the left and right surfaces are recessed. A pair of retaining recesses 18 are formed at the lower ends of the left and right holding grooves 17. The retaining recess 18 is opened on both the left and right outer surfaces of the support portion 13 for reasons of mold molding.

  An accommodation space 16 (including a holding groove 17) is opened horizontally on the lower surface of the support portion 13 over its entire width region, and this opening portion communicates with the holding groove 17 on the lower surface side, and a collective rubber plug. An assembly port 19 is provided for inserting 20 into the accommodation space 16. The insertion direction (assembly direction) of the collective rubber plug 20 with respect to the accommodation space 16 is a direction substantially orthogonal to the insertion direction of the terminal fitting 40 with respect to the cavity 14.

  The collective rubber plug 20 has a rectangular block shape as a whole. The collective rubber plug 20 is formed with a plurality of circular seal holes 21 penetrating in the front-rear direction (parallel to the insertion direction of the terminal fitting 40 with respect to the cavity 14) corresponding to each cavity 14. Further, on both front and rear end faces of the collective rubber plug 20, lip portions 22 each having a substantially rectangular frame shape are formed so as to surround the opening regions of all the seal holes 21 on both end faces.

  The cap 30 is made of synthetic resin and is assembled to the housing 10 so as to close the assembly port 19 of the support portion 13. Locking protrusions 31 are formed on the left and right ends of the cap 30.

  The terminal fitting 40 is elongated in the front-rear direction, the substantially first half portion is a square tube portion 41, the substantially second half portion is a wire connection portion 42, and a wire 43 having a circular cross section is connected to the wire connection portion 42 by crimping. ing. The terminal fitting 40 is inserted into the cavity 14 from the rear of the housing 10 through the seal hole 21 of the collective rubber plug 20 housed in the housing space 16. The terminal fitting 40 inserted to the proper position is prevented from being pulled out by locking the square tube portion 41 to the lance 15 of the cavity 14.

Next, the operation of this embodiment will be described.
When attaching the terminal fitting 40 to the housing 10, first, the collective rubber plug 20 is assembled so as to be accommodated in the accommodating space 16 from below with the cap 30 removed from the assembling port 19. The collective rubber plug 20 accommodated in the accommodation space 16 is fitted in the holding groove 17 of the accommodation space 16 with the respective upper, lower, left and right edges thereof, so that the housing 10 is moved in the front-rear direction. The relative displacement in the direction parallel to the insertion direction of the holding groove 17 is restricted, and the upper surface and the left and right side surfaces are brought into contact with the groove bottom surface of the holding groove 17, so The relative displacement in the direction intersecting the insertion direction of the terminal fitting 40 with respect to is regulated.

  Next, the cap 30 is fitted into the assembly port 19 and the locking projection 31 is fitted into the retaining recess 18. The cap 30 is fixed in a state of closing the assembly port 19 by the locking of the locking protrusion 31 and the retaining recess 18. The collective rubber plug 20 has its lower surface brought into contact with the upper surface (inner surface) of the cap 30, so that the relative displacement (that is, accommodation) downward with respect to the housing 10 (direction intersecting the insertion direction of the terminal fitting 40 with respect to the cavity 14) Leaving outside the space 16) is restricted. As described above, the collective rubber plug 20 is held in a state in which it is loosely regulated at a predetermined position in the accommodation space 16.

  In this state, each seal hole 21 is arranged so as to correspond to each cavity 14 at the rear position. Further, the front and rear lip portions 22 of the batch rubber plug 20 are in close contact with the front and rear surfaces of the holding groove 17 while being elastically crushed and deformed. And the front and rear surfaces of the holding groove 17 are sealed in a liquid-tight manner. Inside the seal area, all the seal holes 21 and the openings at the rear ends of all the cavities 14 are present. As a result, even if liquid enters the holding groove 17 through the opening at the rear end of the accommodation space 16 or the gap between the assembly port 19 and the cap 30, further intrusion is restricted at the lip portion 22. That is, the lip portion 22 restricts the liquid from entering the opening area of the seal hole 21 and the opening at the rear end of the cavity 14 from the outside.

  Thereafter, each terminal fitting 40 is inserted into the terminal insertion port 12 of the support portion 13 from the rear, and is inserted into the cavity 14 through the seal hole 21 while being elastically expanded. The normally inserted terminal fitting 40 is secured by the lance 15. When the terminal fitting 40 is properly inserted, the inner periphery of the seal hole 21 is elastically contacted with the outer periphery of the electric wire 43, so that the gap between the outer periphery of the electric wire 43 and the inner periphery of the seal hole 21 is sealed. The Further, a region behind the seal hole 21 in the electric wire 43 is led backward from the rear end face of the support portion 13.

  As described above, the connector of the present embodiment includes the housing 10 having the cavity 14, the plurality of terminal fittings 40 inserted from the rear with respect to the cavity 14, the electric wire 43 connected to the rear end of the terminal fitting 40, A plurality of seal holes 21 that penetrate the electric wires 43 in a liquid-tight manner are formed so as to correspond to the cavities 14, and are provided with a collective rubber plug 20 that is assembled in a state of being accommodated in the accommodating space 16 of the housing 10. The housing space 16 is open as an assembly port 19 in the direction intersecting the insertion direction of the terminal fitting 40 with respect to the cavity 14 on the outer surface of the housing 10, and the collective rubber plug 20 is connected to the assembly port 19. To the housing space 16. Thus, since the collective rubber plug 20 is assembled to the housing space 16 of the housing 10 in a direction intersecting the insertion direction of the terminal fitting 40 with respect to the cavity 14, the pulling force to the electric wire 43 in the rearward direction. Even when the operation is performed, the collective rubber plug 20 is held in a properly assembled state without being relatively displaced rearward with respect to the housing 10.

  Further, since a part of the outer periphery of the collective rubber plug 20 corresponds to the assembly port 19, a seal between the outer surface of the collective rubber plug 20 and the inner surface of the accommodation space 16 is provided on the outer peripheral surface of the collective rubber plug 20. However, in this embodiment, since the frame-shaped lip portions 22 surrounding the formation regions of the plurality of seal holes 21 are formed on the front and rear end faces of the collective rubber plug 20, in the present embodiment, the collective rubber plug 20 is used. It is possible to seal between the housing space 16 at the end face.

<Other embodiments>
The present invention is not limited to the embodiment 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, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above-described embodiment, the case where the terminal fitting is female is described. However, the present invention can also be applied to the case where the terminal fitting is male.
(2) In the above embodiment, the lip portion is formed on the front and rear end surfaces of the batch rubber stopper. It may be formed.

Longitudinal sectional view of Embodiment 1 Sectional view showing the state before the terminal fitting is inserted into the housing Vertical section of housing only Bottom view of housing Rear view of housing Rear view of bulk rubber stopper and cap Longitudinal sectional view of a lump rubber stopper AA sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Housing 11 ... Cavity 16 ... Accommodating space 19 ... Assembly port 20 ... Collective rubber stopper 21 ... Seal hole 22 ... Lip part 40 ... Terminal metal fitting 43 ... Electric wire

Claims (2)

A housing having a cavity;
A plurality of terminal fittings inserted from the rear into the cavity;
An electric wire connected to the rear end of the terminal fitting;
In the connector provided with a collective rubber plug that is formed so as to correspond to the cavity with a plurality of seal holes penetrating the electric wire in a liquid-tight manner, and assembled in a state of being accommodated in the accommodating space of the housing,
The housing space is configured to be opened as an assembly port in a direction intersecting the insertion direction of the terminal fitting with respect to the cavity on the outer surface of the housing,
The connector, wherein the collective rubber plug is assembled into the housing space from the assembly port. On both front and rear end faces of the collective rubber plug, a frame-like lip portion surrounding the formation area of the plurality of seal holes is formed,
The connector according to claim 1, wherein the lip portion is in elastic contact with the inner surface of the housing space in a liquid-tight manner.

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