JP2003234144A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect insulation-coating. <P>SOLUTION: Because the insulation coating 120b is surrounded by a sheath body 110 by a resin mold, a liquid such as oil or the like is never adhered to the outer face of the insulation coating 120b, and because an electric wire connection part 104 of a terminal fitting 101 is also surrounded by the sheath body 110, the liquid such as the oil or the like never enters into the inside of a conductor 120a and never contacts with an inner peripheral face of the insulation coating 120b, and by this, the insulation coating 120b is protected from adhesion of the liquid such as the oil or the like. Even if the resin in which the adhesion to the terminal fitting 101 is low is used as the sheath body 110, because a space between the terminal fitting 101 and the sheath body 110 is sealed by an adhesive 107, it is not necessary that a resin mold for sealing is interposed between the terminal fitting 101 and the sheath body 110. Therefore, only one process is enough for the resin mold using a metal mold in order to form the sheath body 110, and manufacturing efficiency is better compared with that in the case a resin-mold process is carried out twice. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector.

[0002]

2. Description of the Related Art As a connector for connecting an electric wire to a device, a terminal metal fitting is connected to a terminal portion of a conductor of the electric wire, and the terminal metal fitting is inserted into a mounting hole opened in a case of the equipment to provide a device side terminal in the case. There is one in which a terminal fitting is connected to the case and is attached to the case in a state where the end portion of the electric wire penetrates through the attachment hole.

[0003]

SUMMARY OF THE INVENTION In the above connector,
Since not only the terminal metal fittings but also the terminal part of the electric wire are accommodated in the case, if the oil such as lubricating oil used in the case is scattered in the case,
The lubricating oil may adhere to the outer circumference of the insulation coating of the electric wire. This insulating coating is made of a synthetic resin having flexibility, but since many synthetic resin materials for insulating coating generally have low oil resistance, there is a risk that the insulating coating will deteriorate due to contact with oil. As a countermeasure for the connector, it is possible to use a fluorine electric wire. This fluorine electric wire
It is surrounded by an insulating coating made of a fluororesin having high oil resistance, and even if oil adheres to the outer peripheral surface of the insulating coating, the insulating coating does not deteriorate. However, since the fluororesin is generally more expensive than the synthetic resin used as the insulating coating, there is a problem that the cost becomes high. In particular, the length that may be accommodated in the case and oil may adhere,
That is, in view of the fact that the characteristics of a fluorine electric wire are effectively utilized, it is only a few centimeters at the longest. However, it is a great waste in terms of cost.

Therefore, as a means for protecting the insulating coating while reducing the cost, a structure in which the outer periphery of the insulating coating is surrounded by a resin mold is considered. By covering the outer periphery of the insulating coating with the outer package in this way, it is possible to prevent oil from adhering to the insulating coating. However, since the conductor of the electric wire and the terminal fitting crimp-connected to the conductor are exposed inside the case, the oil adhering to the terminal fitting reaches the electric wire crimping part along the surface of the terminal fitting, and the conductor phenomenon is caused by the capillary phenomenon. There is a possibility that the metal may penetrate into the inside of the conductor through the gaps of the many thin metal wires constituting the. Since the insulating coating has a low oil resistance as described above, oil that has penetrated into the conductor may adhere to the inner peripheral surface of the insulating coating and deteriorate the insulating coating. The phenomenon that the oil that has penetrated into the conductor adheres to the inner circumference of the insulating coating is the same when a fluorine electric wire is used. The present invention has been made in view of the above circumstances, and an object thereof is to protect an insulating coating of an electric wire.

[0005]

According to a first aspect of the present invention, there is provided a resin mold for a terminal fitting formed by connecting a conductor of an electric wire to an electric wire connecting portion, and the electric wire connecting portion of the terminal fitting and an insulating coating of the electric wire. And an adhesive agent applied to the surface of a region of the terminal fitting surrounded by the exterior body.

According to a second aspect of the present invention, in the first aspect of the invention, an adhesive is applied to a region surrounded by the exterior body on the outer periphery of the insulating coating. According to a third aspect of the present invention, in the first or second aspect of the present invention, the outer casing is fitted in a mounting hole of a connection partner, and the outer periphery of the outer casing has the mounting hole. The guide portion is formed such that the guide portion is tapered toward the front in the direction of insertion into.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the guide portion has a rib shape extending along a fitting direction into the mounting hole and is formed with a plurality of circumferentially spaced intervals. It has a structure. According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, in which the exterior body is made of a resin material containing glass fiber, both end surfaces of the exterior body in a length direction are Either one is made to correspond to the injection gate of the resin molding die.

The invention of claim 6 is the first to fifth aspects of the invention.
In any one of the above aspects, a rubber seal member is provided between the adhesive applied to the outer periphery of the terminal fitting and the exterior body.

[0009]

OPERATION AND EFFECT OF THE INVENTION [Invention 1] Since the insulating coating of the electric wire is surrounded by the outer casing made of the resin mold, there is no possibility that liquid such as oil adheres to the outer surface of the insulating coating.
Further, since the wire connection portion of the terminal fitting is also surrounded by the outer body, there is no possibility that liquid such as oil will enter the conductor of the wire and contact the inner peripheral surface of the insulating coating. Therefore, the insulating coating can be protected from the adhesion of liquid such as oil. Further, even if a resin having low adhesion to the terminal fitting is used as the exterior body, the adhesive is used to seal the space between the terminal fitting and the exterior body. Therefore, the resin for sealing is provided between the terminal fitting and the exterior body. There is no need to interpose a mold. Therefore, the resin molding using the mold for forming the outer package requires only one process, and the manufacturing efficiency is higher than that in which the resin molding process is performed twice.

[Invention of Claim 2] Even if the liquid adhering to the surface of the electric wire infiltrates into the gap between the electric wire and the outer casing, the liquid is infiltrated into the electric wire connecting portion side by the adhesive applied to the insulating coating. Be blocked. [Invention of Claim 3] Since the outer periphery of the exterior body is provided with the guide portion which is tapered toward the front in the direction of fitting into the mounting hole, the workability in fitting into the mounting hole is good. [Invention of Claim 4] Since the ribs on the outer periphery of the outer casing are lightened portions, sink marks at the time of molding are reduced, and the dimensional stability of the outer casing is enhanced.

[Invention of Claim 5] When the injection gate is provided on the outer peripheral surface of the exterior body to inject the resin toward the center in the radial direction, the resin collides with the surface of the terminal fitting immediately after the injection and is unspecified. Since the glass fibers flow in different directions, the directions of the glass fibers in the resin become random, and as a result, the shrinkage caused by the curing of the resin becomes non-uniform and the dimensional variation of the outer package increases. In that respect, in the present invention, since the injection gate is provided on the end face in the length direction of the exterior body, the injected resin can flow substantially straight along the surface of the terminal fitting. As a result, the directions of the glass fibers in the resin are made uniform, the shrinkage due to the curing of the resin is made uniform, and the variation in the dimensions of the outer package is suppressed. Increasing the dimensional accuracy of the exterior body in this way is effective when fitting a waterproof seal ring to the outer periphery of the exterior body.

[Invention of Claim 6] The terminal metal fitting and the outer casing are reliably sealed by the adhesive performance of the adhesive and the elastic performance of the rubber seal member.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. The connector 100 of the present embodiment is connected to the terminal portion of the electric wire 120, and the connected electric wires 120 and the connector 100 are bundled together (three in the present embodiment), and these are connected from a tubular braided wire. The wire harness 122 is configured by being inserted into the shield member 121. The wire harness 122 is a device 1 such as a motor device housed in a shield case 130.
31 (connection partner, which is a constituent feature of the present invention). A plurality of circular mounting holes 132 are formed in the shield case 130, and a device-side terminal 133 is provided inside the shield case 130 so as to correspond to each mounting hole 132. In addition, the connector 10
The electric wire 120 to which 0 is connected is a conductive core wire 120.
It is of a non-shield type in which a is surrounded by an insulating coating 120b, and the insulating coating 120b is peeled off at its end to expose the core wire 120a.

Next, the connector 100 of this embodiment will be described. The connector 100 is configured to include a terminal fitting 101 and an exterior body 110 formed so as to surround the terminal fitting 101 with a resin mold.
A substantially first half of the terminal fitting 101 is a device connecting portion 102 having a flat plate shape that is long in the front-rear direction and formed with a bolt hole 103, and a substantially second half of the terminal fitting 101 is a bottom plate 1.
04a is an open barrel-shaped electric wire connecting portion 104 in which caulking pieces 104b are raised from both side edges.
02 and the electric wire connecting portion 104 are connected by a connecting portion 105 having a stepped plate shape. The core wire 120a of the electric wire 120 is connected to the electric wire connecting portion 104 by crimping so that the core wire 120a can be conducted. By the connecting portion 105, in the crimping state, the device connecting portion 10 is connected to the axis 120A of the electric wire 120.
The center 102A (center in both vertical and horizontal directions) of 2 is aligned and the terminal fitting 1
01 and the electric wire 120 are connected in a substantially straight line as a whole. In addition, the insulation coating 12 of the electric wire 120
On the surface of 0b, at the front end position close to the electric wire connecting portion 104, the adhesive 1
25 is to be applied. The adhesive 125
As the adhesive, an adhesive such as epichlorohydrin rubber can be used.

Further, at the rear end portion of the device connecting portion 102 (a portion near the electric wire connecting portion 104), a constricted portion 106 is formed in a groove-like notch shape over the entire circumference thereof. As shown in FIG. 5, the cross section of the constricted portion 106 has a horizontally long, substantially rectangular shape, but the horizontal surface (long side) and the side surface (short side) are connected to each other at the edge portion where the horizontal surface and the side surface are smooth. Is formed with a tapered surface 106a. An adhesive 107 is applied to the constricted portion 106 before the outer casing 110, which will be described later, is resin-molded. As the adhesive 107, an adhesive such as epichlorohydrin rubber can be used.

The outer casing 110 has a region of the terminal fitting 101 including the constricted portion 106 at the rear end of the device connecting portion 102, the entire wire connecting portion 104, and the adhesive 125 at the front end of the insulating coating 120b. It is formed integrally with the terminal fitting 101 by resin molding so as to surround the area to be applied. In the present embodiment, 6-6 nylon (registered trademark) containing glass fiber is used as the resin material for molding the exterior body 110.
-12 nylon can also be used.

From the front end surface of the exterior body 110, the terminal fitting 10
The device connecting portion 102 of No. 1 is projected, and the electric wire 1 is provided from the rear end surface.
A portion of the 20 covered with the insulating coating 120b is led out. The outer periphery of the rear end portion of the outer casing 110 is a circular portion 111 concentric with the electric wire 120, and a seal groove 112 on the outer peripheral surface thereof.
A seal ring 113 is attached to the. The seal groove 112 is located so as to correspond to the rear end of the wire connecting portion 104. Further, the exterior body 1 is provided at a position rearward of the seal groove 112 on the outer periphery of the rear end portion of the exterior body 110.
A bracket 114 separate from 10 is attached. The bracket 114 is located behind the electric wire connecting portion 104 and corresponding to the front end portion of the insulating coating 120b of the electric wire 120.

A region of the outer periphery of the outer casing 110, which is located in front of the circular portion 111, has a shape matching the shapes of the rear end portion of the device connecting portion 102, the connecting portion 105, and the electric wire connecting portion 104. From the surface of the exterior body 110 to the terminal fitting 1
The thickness up to the contact surface with 01 is relatively thin and almost uniform. More specifically, the region of the exterior body 110 in front of the circular portion 111 has a generally horizontally long rectangular shape, and the thickness of the approximately first half portion of the exterior body 110 is relatively thin according to the device connection portion 102. A region behind the region is relatively thick in accordance with the connecting portion 105 and the wire connecting portion 104, and has a stepped shape at the boundary between both regions.

Further, both left and right side surfaces of the exterior body 110 are guide portions 115, and both the left and right guide portions 115 are
It has an arcuate shape and smoothly continues to the circular portion 111 at the rear end, and at the front (the outer casing 110 with respect to the mounting hole 132).
In the direction of the insertion direction), the distance between each other becomes gradually narrower. Further, a rib-shaped guide portion 116 extending in the front-rear direction is formed at a central position in the width direction on both the upper and lower surfaces of the exterior body 110 so as to vertically project. The vertical distance between the projecting end surfaces of the upper and lower guide portions 116 is gradually reduced toward the front. At the front end of the exterior body 110, both upper and lower guide portions 11
The distance between the protruding end faces of 6 is smaller than the distance between the left and right guide portions 115. These four guide portions 115, 116 are spaced in the vertical and horizontal directions.
Has a tapered shape on the outer periphery of the outer casing 110.

In manufacturing the connector 100, first,
The electric wire connecting portion 10 of the terminal fitting 101 is attached to the terminal portion of the electric wire 120.
4 are connected by crimping, and then the terminal fitting 101
Adhesives 107 and 125 are applied to the constricted portion 106 and the outer periphery of the front end portion (the portion close to the electric wire connection portion 104) of the insulating coating 120b of the electric wire 120, and the adhesive 107 and 125 are applied to the resin molding die 140. set. And the mold 140
When the molten resin is injected into the inside, the injected molten resin fills the cavity in the mold 140. If the resin hardens after filling, the outer casing 110, the terminal fitting 101, and the electric wire 120
The connector 100 integrated with the terminal part of is completed.
Further, the injection gate 141 of the mold 140 is used as the exterior body 110.
Are arranged at positions corresponding to the front end surfaces of both the upper and lower guide portions 116, whereby the injected molten resin flows backward along the surface of the terminal fitting 101. Therefore, the molten resin hardly collides with the terminal fitting 101 and the electric wire 120, and the flow is smooth.

The manufactured connector 100 is individually inserted into the mounting hole 132 of the shield case 130 with the seal ring 113 and the bracket 114 assembled.
Then, in the shield case 130, the device connecting portion 102
Is connected to the device-side terminal 133 with a bolt 134 and a nut 135, and the bracket 114 abutted on the outer surface of the shield case 130 is fixed to the shield case 130 with a bolt (not shown). 111 is held in a state of being fitted in the mounting hole 132, and the seal ring 1 is provided between the exterior body 110 and the mounting hole 132.
Sealed by 13. Furthermore, the shield member 12
The shield shell 123 fixed to the end portion of No. 1 is fixed to the outer surface of the shield case 130 by a bolt (not shown) and is connected so as to be able to conduct.

As described above, in this embodiment, since the insulating coating 120b of the electric wire 120 is surrounded by the outer casing 110 formed of resin, there is no possibility that liquid such as oil adheres to the outer surface of the insulating coating 120b. Also, the terminal fitting 10
Since the first electric wire connecting portion 104 is also surrounded by the outer casing 110, there is no fear that liquid such as oil will enter the conductor 120a of the electric wire 120 and adhere to the inner peripheral surface of the insulating coating 120b. Therefore, the insulating coating 120b can be protected from the adhesion of liquid such as oil. Further, the adhesive 107 applied to the surface of the device connecting portion 102 of the terminal fitting 101 functions as a sealing means for sealing the gap between the device connecting portion 102 and the outer casing 110 in a liquid-tight manner. Therefore, even if the liquid (for example, oil in the shield case 130) attached to the surface of the device connecting portion 102 infiltrates into the gap between the terminal fitting 101 and the outer casing 110 from the front end surface of the outer casing 110, the liquid remains. , The electric wire connecting portion 10 by the adhesive 107
Invasion to the 4 side is blocked. Similarly, the adhesive 125 applied to the surface of the insulating coating 120b of the electric wire 120 is
Since it functions as a sealing unit that seals the gap between the outer casing 20 and the outer casing 110 in a liquid-tight manner, the liquid adhering to the surface of the insulating coating 120b is transferred from the rear end surface of the outer casing 110 to the electric wire 12
Even if the liquid penetrates into the gap between 0 and the exterior body 110,
The adhesive 125 prevents entry into the electric wire connecting portion 104 side.

The outer case 110 uses nylon (registered trademark) in consideration of oil resistance, but this nylon resin has a property that the adhesion to tin plating on the surface of the terminal fitting 101 is low. However, in the present embodiment, as described above, the terminal metal fitting 101 and the outer casing 110 are reliably sealed with the adhesive 107, so that a resin mold for sealing is provided between the terminal metal fitting 101 and the outer casing 110. No need to intervene. Therefore, the exterior body 1
The resin molding using the mold for forming 10 requires only one step, and is superior in manufacturing efficiency to the one in which the resin molding step is performed twice.

Further, the mounting hole 1 is provided on the outer periphery of the outer casing 110.
Since the guide portions 115 and 116 that are tapered toward the front in the direction of fitting into the mounting portion 32, the mounting hole 132 is provided.
There is no possibility that the front end of the exterior body 110 will be caught by the opening edge of the mounting hole 132 when it is fitted in, and workability is good. Moreover, since the guide portions 115 and 116 have a rib shape extending along the fitting direction into the mounting hole 132 and are arranged in a plurality of rows at intervals in the circumferential direction, the exterior body 110 of the exterior body 110 is provided. A portion between the guide portions 115 and 116 on the outer periphery is a lightening portion. Therefore, when the outer casing 110 is molded, sink marks are reduced, and the dimensional stability of the outer casing 110 is improved.

Further, when the injection gate is provided so as to correspond to the outer peripheral surface of the outer casing 110 and the resin is injected toward the center in the radial direction, the resin collides with the surface of the terminal fitting 101 immediately after the injection and the resin is improper. Since it will flow in a specific direction, the direction of the glass fiber in the resin becomes random, as a result,
The shrinkage due to the curing of the resin becomes non-uniform, and the dimensional variation of the outer package 110 increases. In that respect, in the present embodiment,
Since the injection gate 141 is provided on the end face of the exterior body 110 in the length direction, the injected resin can flow substantially straight along the surface of the terminal fitting 101. As a result, the directions of the glass fibers in the resin are made uniform, the shrinkage caused by the curing of the resin is made uniform, and the variation in the dimensions of the outer casing 110 is suppressed to a small level. In this way, the exterior body 11
Increasing the dimensional accuracy of 0 effectively works in the present embodiment in which the waterproof seal ring 113 is attached to the outer periphery of the outer casing 110.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. 6 to 11. As shown in FIG. 6, the connector C of the present embodiment includes a terminal fitting 11 connected to the end of the electric wire 10, a rubber ring 20 mounted on the terminal fitting 11, and a rubber boot 3 mounted on the electric wire 10.
0, and a synthetic resin housing 40 (an exterior body which is a constituent feature of the present invention) molded around the respective members 11, 20, 30. In the following description, the left side of FIG. 6 is the front side in the front-rear direction, and the upper side of FIG. 6 is the upper side in the vertical direction.

As shown in FIGS. 7 and 8, the terminal fitting 11 is formed by cutting a conductive metal plate material into a predetermined shape and then bending it. A flat plate-shaped connecting portion 12 having an oval bolt hole 12A is provided at the front of the terminal fitting 11 so that it can be connected to a mating terminal fitting (not shown) by bolting. A barrel portion 13 is provided at a rear portion of the terminal fitting 11, and a core wire portion 10B exposed from a covering portion 10A of the electric wire 10 (an insulating coating which is a constituent of the present invention) is caulked to the barrel portion 13. A constriction in which a rubber ring 20 (a rubber seal member which is a constituent feature of the present invention) is mounted between the connecting portion 12 of the terminal fitting 11 and the barrel portion 13 (a wire connecting portion which is a constituent feature of the present invention). A section 14 is provided. The constricted portion 14 is formed in a flat plate-shaped portion that is continuous from the connection portion 12 rearward, and has a shape in which the width dimension and the thickness dimension are narrower than those of the adjacent portions. A pair of inclined stepped portions 14A are formed in front of and behind the constricted portion 14, and a rubber ring 20 described later is locked between the stepped portions 14A while being positioned in the front-rear direction. . Further, as shown in the cross-sectional view of FIG. 4, the constricted portion 14 is provided with inclined surfaces 15 at four corners along the lengthwise direction (front-back direction) thereof, and has a rounded shape as a whole. ing.

The rubber ring 20 is formed of a rubber material such as silicon rubber having elasticity into a rectangular tubular shape (annular shape), and is tightly fitted to the outer peripheral surface of the constricted portion 14. On the outer peripheral surface of the rubber ring 20, a pair of annular lips 21 are provided so as to be juxtaposed side by side. The rubber boot 30 is formed into a cylindrical shape (annular shape) with a rubber material such as silicone rubber having elasticity, and is tightly fitted to the outer peripheral surface of the covering portion 10A of the electric wire 10. An annular groove 31 is formed on the outer peripheral surface of the rubber boot 30 on the front end side.

As shown in FIGS. 6 and 10, the housing 40 is molded by a synthetic resin material so that the connecting portion between the terminal fitting 11 and the electric wire 10 is embedded therein. In other words, the housing 40 is packaged by resin molding so as to surround the connecting portion between the terminal fitting 11 and the outlet 10. More specifically, the connecting portion 12 of the terminal fitting 11 is projected to the outside of the housing 40, and the constricted portion 14 to which the rubber ring 20 is attached and the barrel portion 13 to which the electric wire 10 is connected are inside the housing 40. positioned. Further, regarding the rubber boot 30, the groove portion 31
The front end side portion including is embedded in the housing 40,
A rear portion thereof is projected to the outside of the housing 40, and the electric wire 10 is led out from the inside thereof.

A resin mold 50 for molding the housing 40 includes an upper mold 50A as shown in FIG.
And a lower die 50B, and an upper die 50A and a lower die 5
A cavity 51 into which molten resin is injected is formed between 0B and 0B. In the lower mold 50B, a terminal holding groove 52 in which the connecting portion 12 of the terminal fitting 11 can be mounted is provided in front of the cavity 51. Also, the upper mold 50A and the lower mold 50
In B, a rubber boot holding groove 53 into which the rubber boot 30 can be attached is provided in the rear of the cavity 51, and an electric wire insertion groove 54 for inserting the electric wire 10 into the outside is provided in the rear thereof.

Next, the procedure for manufacturing the connector C will be described. First, a vulcanizing adhesive 55 for adhering the rubber ring 20.
(See FIG. 9) is applied to the outer peripheral surface of the constricted portion 14. Then, the rubber ring 20 is fitted to the tip of the connecting portion 12,
Slide it back. The rubber ring 20 has a constricted portion 14
Then, the inner peripheral surface of the rubber ring 20 elastically adheres to the outer peripheral surface of the constricted portion 14 with the vulcanizing adhesive 55 sandwiched therebetween, and the step portion 14A before and after the constricted portion 14 has the rubber ring 2
The rubber ring 20 is positioned in the front-rear direction by being locked at 0. Then, heat treatment is performed to vulcanize and bond the rubber ring 20 and the terminal fitting 11. Then, the rubber boot 30 is fitted on the covering portion 10A of the end of the electric wire 10 to form the covering portion 10A.
The more exposed core wire portion 10B is caulked with the barrel portion 13 of the terminal fitting 11 to which the rubber ring 20 is adhered.

Next, the terminal fitting 11 is set in the cavity 51 of the mold 50, and the upper mold 50A and the lower mold 50B are closed. Then, the molten resin is injected and filled into the cavity 51. At this time, the rubber ring 20 is pressed forward or backward by the resin pressure, but the movement thereof is restricted by being locked to each other with respect to the constricted portion 14 and being bonded to each other. Further, at this time, the rubber boot 30 is also pressed by the resin pressure, but the movement of the rubber boot 30 is restricted because the portion protruding outside the housing 40 is held in the rubber boot holding groove 53 of the mold 50.
Further, the lip 21 of the rubber ring 20 is elastically deformed by being pressed by the resin. After the resin has solidified in this way, the completed connector C can be obtained by opening the mold.

In this connector C, the housing 4
The rubber ring 20 closes the space between the terminal fitting 11 and the housing 40 on the front end side of 0, and the rubber boot 30 covers the space between the covering portion 10A of the electric wire 10 and the housing 40 on the rear end side.
The connection portion (barrel portion 13) between the terminal fitting 11 and the electric wire 10 is made watertight by closing with the plug. The lip 21 of the rubber ring 20 is deformed by the resin pressure at the time of molding and is elastically pressed against the housing 40 by the restoring deformation force after molding, so that the adhesion is improved.

Further, when the resin-molded electric wire is led out from the rear end of the housing as it is as in the conventional case, when the electric wire is subjected to a bending force, the covering portion of the electric wire causes the covering portion of the electric wire to end. In some cases, the electric wire 10 is led out of the housing 40 with the rubber boot 30 sandwiched between the electric wire 10 and the housing 40.
0A is protected. Further, a groove portion 31 is provided on the outer peripheral surface of the rubber boot 30, and the resin enters into the groove portion 31 so that the rubber boot 30 is locked to the housing 40 in a retaining state.

As described above, according to this embodiment, the liquid adhering to the surface of the connecting portion 12 exposed from the housing 40 of the terminal fitting 11 penetrates into the gap between the terminal fitting 11 and the housing 40. However, the liquid is generated by the adhesive 55 applied to the surface of the terminal fitting 11 and the barrel 13
Invasion to the side is blocked. Even if a resin having low adhesion to the terminal fitting 11 is used as the housing 40, the terminal fitting 11
Since the adhesive 55 seals between the housing 40 and the housing 40, it is not necessary to interpose a resin mold for sealing between the terminal fitting 11 and the housing 40.

Further, the terminal fitting 11 and the housing 40 are reliably sealed by the adhesive performance of the adhesive 55 and the elastic performance of the rubber ring 20. Further, the rubber ring 20 is positioned with respect to the terminal fitting 11 by two displacement preventing means. That is, the rubber ring 20
Is locked to the constricted portion 14 formed on the terminal fitting 11 and is bonded to the terminal fitting 11 by the vulcanizing adhesive 55, which prevents the rubber ring 20 from moving due to resin pressure during molding. To be done. Therefore, the space between the terminal fitting 11 and the housing 40 is reliably sealed.

Further, since the outer peripheral surface of the terminal fitting 11 and the inner peripheral surface of the rubber ring 20 are adhered to each other, the resin enters between the two members 11 and 20 during molding, so that the rubber ring 20 is attached to the terminal fitting 11. It is possible to prevent the situation of being lifted up. Further, the waist portion 14 to which the rubber ring 20 is attached
Since the four corners along the length direction are rounded, the airtightness between the rubber ring 20 and the terminal fitting 11 can be enhanced. That is, when the corners of the portion to which the rubber ring is attached are right angles, the thickness of the adhesive becomes thin at the corners when the adhesive is applied, and the amount of application tends to be insufficient, In this embodiment, the inclined surface 15 is formed at the corner and is rounded, so that the vulcanizing adhesive 55 can be applied to the entire circumference of the constricted portion 14 with a substantially uniform thickness. Also, if the corners of the part where the rubber ring is attached are at right angles, it is difficult for the inner peripheral surface of the rubber ring to make close contact, but by rounding the corners, the rubber ring can easily make close contact with the terminal metal fittings. It becomes the shape.

[Third Embodiment] Next, a third embodiment of the present invention will be described with reference to FIGS. Since most of the configuration of the present embodiment is the same as that of the second embodiment, the same reference numerals are given to the same configurations as the first embodiment in the following description, and the description is partially omitted. The connector C2 of the present embodiment is a terminal fitting 6 connected to the end of the electric wire 10.
0, a rubber ring 61 attached to the terminal fitting 60, and a synthetic resin housing 62 molded around the respective members 60, 61.
In this connector C2, instead of the rubber boot 30 of the first embodiment, the electric wire 10 and the housing 62 are formed by a sealant 64 (adhesive which is a constituent feature of the present invention) applied to the outer peripheral surface of the covering portion 10A of the electric wire 10. We are trying to waterproof between. The constricted portion 65 of the terminal fitting 60 is rounded at four corner portions 66 along the length direction thereof.

To manufacture the connector C2, the terminal fitting 6
After caulking and connecting the core wire portion 10B of the electric wire 10 to the barrel portion 13 of 0, the vulcanizing adhesive 55 is applied to the constricted portion 65 as in the second embodiment, and then the rubber ring 61 is fitted. Then, the sealant 6 is applied to the outer peripheral surface of the covered portion 10A of the electric wire 10.
After applying 4, the terminal fitting 60 is set in a mold (not shown) to mold the housing 62. Also in this embodiment, the rubber ring 61 is prevented from moving due to the resin pressure at the time of molding by being locked to the constricted portion 65 formed on the terminal fitting 60. Therefore, the sealing property between the terminal fitting 60 and the housing 62 can be ensured.

[Fourth Embodiment] Next, a fourth embodiment of the present invention will be described with reference to FIG. In the connector of the present embodiment, a terminal metal fitting 71 is connected to an end of the electric wire 70, and a resin housing 72 (the exterior which is a constituent feature of the present invention is embedded so as to bury the connecting portion between the terminal metal fitting 71 and the electric wire 70. Body) is molded. Since this connector is used in an environment where waterproofness is required, it is between the terminal fitting 71 and the housing 72 and the electric wire 7
For the purpose of ensuring waterproofness between the coating of No. 0 and the housing 72, a sealant 73 (adhesive which is a constituent feature of the present invention) is provided on the outer peripheral surface of the terminal fitting 71 and the outer peripheral surface of the coating of the electric wire 70 in advance.
Is applied, and then the housing 72 is molded by a resin mold so as to surround the area to which the sealant 73 is applied and the connecting portion between the electric wire 70, the terminal fitting 71, and waterproofing. In this way, the fourth embodiment
No part corresponding to the constricted portion in the first to third embodiments is formed in the terminal metal fitting 71.

[Other Embodiments] The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention. (1) In the above-described embodiment, the adhesive is applied to both the surface of the terminal fitting and the outer periphery of the insulating coating of the electric wire. However, according to the present invention, the adhesive is not applied to the outer circumference of the insulating coating, and The adhesive may be applied only to the surface. In this case, it is possible to seal by the elasticity of the insulating coating.

(2) In the above embodiment, the guide portion on the outer periphery of the outer package has a plurality of ribs spaced in the circumferential direction.
According to the present invention, the guide portion may have a conical shape having a uniform diameter in the circumferential direction. (3) In the above-described embodiment, the example applied to the non-shielded electric wire has been described, but the present invention can also be applied to the shielded electric wire. (4) In the above embodiment, the bracket, which is a means for attaching to the shield case, is attached to the molded outer body as a separate component from the outer body, but according to the present invention, the bracket is formed by resin molding. It may be integrated with the exterior body, or the bracket may be integrated with the exterior body.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a connector according to a first embodiment.

FIG. 2 is a perspective view of a connector.

FIG. 3 is a plan view of the connector.

FIG. 4 is a perspective view showing a state in which an electric wire is connected to the terminal fitting.

FIG. 5 is a cross-sectional view showing a state in which an adhesive is applied to the terminal fitting.

FIG. 6 is a side sectional view showing the connector of the second embodiment.

FIG. 7 is an exploded side view showing a rubber ring, a terminal fitting, an electric wire, and a rubber boot.

FIG. 8 is a plan view of the terminal fitting.

FIG. 9 is a front sectional view showing a state where a rubber ring is attached to the terminal fitting.

FIG. 10 is a plan view of the connector.

FIG. 11 is a side sectional view showing a state where molten resin is injected into the mold.

FIG. 12 is a side sectional view showing a connector according to a third embodiment.

FIG. 13 is a front sectional view showing a state where a rubber ring is attached to the terminal fitting.

FIG. 14 is a side sectional view showing a connector according to a fourth embodiment.

[Explanation of symbols]

C ... Connector 10 ... Electric wire 10A ... Coated part (insulating coating) 11 ... Terminal fittings 13 ... Barrel part (electric wire connection part) 20 ... Rubber ring (rubber seal member) 40, 72 ... Housing (exterior body) 50 ... Mold for resin molding 55 ... Vulcanizing adhesive 64, 73 ... Sealing agent (adhesive) 100 ... Connector 101 ... Terminal metal fittings 104 ... Electric wire connection part 107 ... Adhesive 110 ... Exterior body 115 ... Guide part 116 ... Guide part 120 ... Electric wire 120b ... Insulation coating 125 ... Adhesive 131 ... Equipment (connection partner) 132 ... Mounting hole 140 ... Mold for resin molding 141 ... Injection gate

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tadashi Miyazaki             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. (72) Inventor Mio Mizutani             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. F term (reference) 5E085 BB14 CC03 DD09 EE11 EE19                       EE40 FF01 GG19 GG33 HH16                       HH31 JJ11                 5E087 FF02 FF12 GG34 JJ03 LL02                       LL12 LL14 MM04 MM12 RR12                       RR47

Claims (6)

[Claims] 1. A terminal fitting formed by connecting a conductor of an electric wire to an electric wire connecting portion, and an exterior body which is covered with a resin mold to surround the electric wire connecting portion of the terminal fitting and the insulating coating of the electric wire. A connector provided with an adhesive applied to a surface of an area surrounded by the exterior body of the terminal fitting. 2. The connector according to claim 1, wherein an adhesive is applied to a region surrounded by the outer package on the outer periphery of the insulating coating. 3. A guide in a form in which the exterior body is fitted into a mounting hole of a connection partner, and the outer periphery of the exterior body is tapered toward a direction of fitting into the mounting hole. The connector according to claim 1 or 2, wherein a portion is provided. 4. The guide portion has a rib shape extending along a fitting direction into the mounting hole, and a plurality of guide portions are formed at intervals in the circumferential direction. connector. 5. When the outer package is made of a resin material containing glass fiber, one of the two end faces of the outer package in the length direction is made to correspond to an injection gate of a resin mold. The connector according to any one of claims 1 to 4, further comprising: 6. A rubber seal member is provided between the adhesive applied to the outer periphery of the terminal fitting and the exterior body, according to any one of claims 1 to 5. Connector described.