JP2008258103A - Mold connector and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mold connector which can secure high water-proofness and its manufacturing method. <P>SOLUTION: The mold connector M is provided with a terminal metal fitting 20 fixed on a core wire 32 of which the insulation cover 31 of a wire 30 is peeled and exposed and a molded resin portion 40 formed by molding a portion including this fixed portion and a top end portion of the insulation cover 31 by a synthetic resin. On an end portion opposite to the top end of the wire 30 out of the molded resin portion 40, a cylindrical projected portion 46 is integrally provided surrounding the insulation cover 31, and on a projected end portion of the cylindrical projected portion 46, there is a coating of a sealant 48 which seals between an inner circumferential portion of the cylindrical projected portion 46 and the insulation cover 31 over an outer circumferential surface of the insulation cover 31 of the wire 30 extending from the projected end portion through an outer circumferential surface of the cylindrical projected portion 46. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a molded connector formed by molding a terminal fitting together with an electric wire and a method for manufacturing the same.

Conventionally, for example, a connector described in Patent Document 1 is known as a mold connector. This is the one in which the terminal metal fitting is fixed to the exposed core wire by peeling off the insulation coating of the electric wire, and the portion including the fixed portion and the tip of the insulation coating is molded with a synthetic resin to form a mold resin layer. . When the electric wire is molded together with the terminal fitting by the molded resin layer, a separate connector housing is not required and the structure is simplified.
JP 2004-172071 A

In the above-described molded connector, it seems that there is no concern that the mold resin layer is in close contact with the outer peripheral surface of the electric wire and water enters. However, since the insulation coating of the electric wire and the mold resin layer are made of different materials, the adhesion is not always sufficient. Especially, when the electric wire is repeatedly bent greatly, the electric wire and the mold resin layer There is a possibility that a gap is formed and the waterproofness is lowered.
In order to cope with such a problem, it is conceivable to seal this gap by applying a sealing agent between the end surface of the mold resin layer and the outer peripheral surface of the insulating coating. However, even when such a sealant is applied, the force that accompanies the bending of the electric wire acts on the bending position of the electric wire (end surface position of the mold resin layer). There is also a possibility that the property may be lowered.
This invention is completed based on the above situations, Comprising: It aims at providing the manufacturing method of the molded connector which can ensure high waterproofness, and a molded connector.

According to the present invention, a terminal metal fitting is fixed to an exposed core wire by peeling off an insulating coating of an electric wire, and a mold resin layer is formed by molding a portion including the fixed portion and the tip of the insulating coating with a synthetic resin. In the connector, a cylindrical projecting portion surrounding the insulating coating is integrally provided at an end of the mold resin layer opposite to the tip of the electric wire, and the projecting end of the cylindrical projecting portion The portion is sealed between the inner peripheral portion of the cylindrical protruding portion and the insulating coating from the outer peripheral surface of the insulating coating of the electric wire extending from the cylindrical protruding portion to the outer peripheral surface of the cylindrical protruding portion. It is characterized in that a sealing agent is applied.
According to such a structure, compared with the case where it apply | coats only between the outer peripheral surface of insulation coating, and the end surface of a mold resin layer, the adhesion area of a sealing compound and a mold resin layer increases. Thereby, since the adhesive force of the sealing agent with respect to the mold resin layer increases and the sealing agent becomes difficult to peel from the mold resin layer, high waterproofness can be ensured.

Around the sealing agent, a shrinkable tube that tightens the sealing agent from the entire circumference may be covered.
Thereby, since the sealing agent is tightened to the cylindrical protrusion by the shrinkable tube, the sealing agent is more difficult to peel off from the outer periphery of the cylindrical protrusion.

A metal shield shell may be provided on the outer surface of the mold resin layer.
Further, the shield shell is formed with an electric wire guide portion located on the side of the extension of the electric wire from the cylindrical projecting portion, and an electric wire insertion hole through which the electric wire is inserted is formed in the electric wire guide portion. can do.

And the part located between the said cylindrical protrusion part and the said electric wire insertion hole among the said electric wires is bent, In the two places which pinch | interpose the said electric wire among the inner peripheral surfaces of the said electric wire insertion hole, The inner peripheral surface of the electric wire insertion hole and the electric wire may be in contact with each other.
Thereby, the shake of the electric wire by vibration etc. is suppressed.

The electric wire may be surrounded and shielded by a braided wire having a cylindrical shape, and the braided wire may be caulked on an outer peripheral portion of the electric wire guide portion.
The shield shell includes a shell body that covers the outer surface of the mold resin layer, and the wire guide portion that is a separate component from the shell body, and the wire guide portion is screwed to the shell body. Can be.

Further, according to the present invention, the terminal metal fitting is fixed to the exposed core wire by peeling off the insulating coating of the electric wire, and a mold resin layer is formed by molding a portion including the fixed portion and the tip of the insulating coating with a synthetic resin. A method for manufacturing a molded connector, comprising: a cylindrical protrusion that surrounds the insulating coating of the electric wire, and an annular flat surface on an outer peripheral side of a base end portion of the cylindrical protrusion. A mold forming step of molding in the shape provided, and then set so that the protruding end side of the cylindrical protruding portion faces upward, and the cylindrical protruding from the outer peripheral surface of the insulating coating to the outer peripheral surface of the cylindrical protruding portion And a sealing agent application step of applying a sealing agent that seals between the inner peripheral portion of the portion and the insulating coating.
Thereby, since the flow of the sealing agent applied from the outer peripheral surface of the insulating coating to the outer peripheral surface of the cylindrical protrusion is made by the annular flat surface, it becomes easy to manage the application amount of the sealing agent and facilitate the application work. It can be carried out.

Holding a heat shrinkable tube extrapolated to the electric wire in a portion where the sealing agent is applied, and performing a tube mounting step of heating and shrinking the heat shrinkable tube at a predetermined temperature so as to closely contact the periphery of the sealing agent; can do.
Here, for example, when using a tube that is elastically contracted to tighten the sealing agent, the tube must be elastically expanded and deformed and moved to a portion where the sealing agent is applied, which is troublesome. However, if a heat-shrinkable tube having an inner diameter dimension larger than the outer dimension of the electric wire is used until it is contracted, such trouble is not required and the tube can be easily attached.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the manufacturing method of the molded connector which can ensure high waterproofness, and a molded connector.

Embodiments of the present invention will be described below with reference to FIGS.
The molded connector M in this embodiment is for supplying electric power to a motor (not shown) mounted on a hybrid vehicle or the like. The molded connector M can be fitted to a device-side connector 10 attached to a metal motor case (not shown). In the following, each component will be described with the left side of FIG. 1 as the front, the right side as the rear, the upper side as the upper side, and the lower side as the lower side.

  The device-side connector 10 has a configuration in which device-side terminals 15 having screw holes are accommodated in a connector housing 11 made of synthetic resin, and is fitted into a through-hole (not shown) formed in the motor case. It is fixed. The connector housing 11 is formed with a fitting recess 14 that opens upward, and a device-side terminal 15 is disposed in the center with a gap around the periphery.

The molded connector M fitted to the device-side connector 10 is formed by molding the terminal fitting 20 together with the electric wire 30.
The terminal fitting 20 is formed by bending a conductive metal plate, the rear end portion thereof is a crimp portion 21 that is crimped to the electric wire 30, and the front end portion is a connection portion that is fixed to the device-side terminal 15. 22 The crimping portion 21 has a barrel shape and is caulked to the core wire 32 exposed by peeling off the insulating coating 31 of the electric wire 30. A bolt insertion hole 23 into which the bolt can be inserted is formed in the connection portion 22 so as to penetrate in the vertical direction. Three terminal fittings 20 of the same shape and size are prepared for connection to the three-phase winding of the motor.
The three electric wires 30 connected to each terminal fitting 20 are shielded by being collectively surrounded by a braided wire 33 having a flat cylindrical shape.

A portion including the entire portion of the terminal fitting 20 excluding the connection portion 22 and the tip of the insulating coating 31 of the electric wire 30 is covered with a mold resin portion 40 (corresponding to the mold resin layer of the present invention).
3 to 5 show a side view, a plan view, and a rear view of the mold connector M before the sealant 48 is applied.

  The mold resin portion 40 is made of synthetic resin, and a connector fitting that can be fitted into the fitting recess 14 of the device-side connector 10 at the front end portion (the portion corresponding to the connection portion 22 of the terminal fitting 20). The part 41 is formed to protrude downward. A first seal groove 42 is formed along the circumferential direction on the outer peripheral surface of the connector fitting portion 41, and a first seal ring 43 is attached to the first seal groove 42. And when the connector fitting part 41 is accommodated in the fitting recessed part 14 of the apparatus side connector 10, the 1st seal ring 43 will closely_contact | adhere to the internal peripheral surface of the fitting recessed part 14, and a seal | sticker will be taken.

  In the front end portion of the mold resin portion 40, an opening portion that penetrates in the vertical direction from the lower surface of the connector fitting portion 41 to the upper surface of the mold resin portion 40 is formed. The lower part of the opening (corresponding to the connector fitting part 41) is a terminal accommodating part 44 that can accommodate the upper half of the device side terminal 15 (see FIG. 1). In addition, an upper portion (portion above the connection portion 22 of the terminal fitting 20) of the opening is a cap fitting portion 54 into which a cap 50 that closes the upper side of the opening is fitted.

  The cap 50 is formed with a head accommodating portion 53 that accommodates a head of a bolt (not shown) that fixes the connection portion 22 of the terminal fitting 20 to the device-side terminal 15 and opens downward. A second seal groove 51 is formed along the circumferential direction on the outer peripheral surface of the cap 50, and a second seal ring 52 is attached to the second seal groove 51. When the cap 50 is fitted into the cap fitting portion 54, the second seal ring 52 is brought into close contact with the inner peripheral surface of the cap fitting portion 54 and a seal is taken.

  The end portion of the insulating coating 31 of the electric wire 30 to the crimping portion 21 of the terminal fitting 20 is completely covered with the mold resin portion 40. A portion of the mold resin portion 40 that covers the insulating coating 31 of the electric wire 30 has a cylindrical shape, and is a cylindrical portion 45 that is thinner than a portion that covers the crimping portion 21 of the terminal fitting 20. The cylindrical portion 45 has a lower rigidity than the portion covering the crimping portion 21 and is easily deformed following the movement of the electric wire 30.

  A cylindrical projecting portion 46 is integrally provided on the rear side of the cylindrical portion 45 (the end portion of the mold resin portion 40 opposite to the tip of the electric wire 30). The cylindrical protrusion 46 has a cylindrical shape that surrounds the entire periphery of the insulating coating 31, and an inner peripheral surface thereof is in close contact with the insulating coating 31. The outer dimension of the cylindrical projecting portion 46 is made smaller than the cylindrical portion 45 in a stepped shape, and the thickness dimension is almost half of the thickness dimension of the cylindrical portion 45. Thereby, the cylindrical protrusion 46 is more easily deformed as the electric wire 30 is bent than the cylindrical portion 45, and a gap is less likely to be generated between the cylindrical protrusion 46 and the insulating coating 31. Thus, since the mold resin portion 40 has a shape that gradually increases in rigidity from the cylindrical protruding portion 46 to the portion surrounding the crimping portion 21, the force accompanying the bending of the electric wire 30 is from the rear end to the front side. It is distributed and transmitted. In addition, the cylindrical protrusion part 46 is made into the fixed thickness dimension over the front-back direction.

  Since the outer dimension of the cylindrical protruding portion 46 is smaller than that of the cylindrical portion 45 as described above, an annular flat surface 47 surrounding the proximal end portion of the cylindrical protruding portion 46 is formed on the rear end surface of the cylindrical portion 45. ing. The cylindrical projecting portion 46 has a form that rises perpendicular to the annular flat surface 47.

  A sealant 48 (corresponding to the sealing agent of the present invention) is applied to the outer peripheral surfaces of the cylindrical projecting portion 46 and the insulating coating 31 to seal between the inner peripheral portion of the cylindrical projecting portion 46 and the insulating coating 31. Has been. The sealant 48 continuously connects the region of the insulating coating 31 of the electric wire 30 close to the tip of the cylindrical protrusion 46, the entire outer peripheral surface of the cylindrical protrusion 46, and the annular flat surface 47 of the cylindrical portion 45. It is applied to cover. The sealant 48 is applied so that the outer diameter of the sealant 48 applied to the outer peripheral surface of the insulating coating 31 and the outer diameter of the sealant 48 applied to the outer peripheral surface of the cylindrical protrusion 46 are substantially the same. Has been.

  Thus, since the sealant 48 is applied from the outer peripheral surface of the insulating coating 31 to the outer peripheral surface of the cylindrical protruding portion 46, for example, the end surface of the mold resin portion where the cylindrical protruding portion 46 is not formed and the insulating coating 31. Compared to the case where the sealant 48 is applied only between the outer peripheral surface, the adhesion area between the sealant 48 and the mold resin portion 40 is increased by the outer peripheral surface of the cylindrical protrusion 46. Thereby, the adhesive force of the sealant 48 to the mold resin portion 40 is increased.

  A heat shrink tube 49 is placed around the sealant 48. The heat shrinkable tube 49 has an inner diameter dimension before contraction that is larger than an outer dimension of the cylindrical portion 45. The heat-shrinkable tube 49 is placed on a portion of the electric wire 30 from the straight portion extending from the cylindrical protrusion 46 to the cylindrical portion 45 of the mold resin portion 40. The sealant 48 is located substantially at the center in the length direction of the heat shrinkable tube 49 and is tightened from the entire circumference by the heat shrinkable tube 49.

  As shown in FIG. 1, a metal shield shell 60 is provided on the upper surface of the mold resin portion 40. The shield shell 60 includes a shell main body 61 that covers the outer surface of the mold resin portion 40, and a shield cylinder 62 (corresponding to the wire guide portion of the present invention) to which a terminal portion of the braided wire 33 is connected.

  The shell main body 61 includes a shell front side portion 61A that covers the mold resin portion 40 and a shell rear side portion 61B that covers up to the straight portion of the electric wire 30 extending rearward from the mold resin portion 40. The shell front side portion 61 </ b> A and the shell rear side portion 61 </ b> B each have a lid shape that covers the mold resin portion 40 from above, and overlap each other at the position of the cylindrical portion 45 of the mold resin portion 40. The shell rear side portion 61B has an oblique shape that is opened rearward and the rear end side thereof is disposed at an upper position, and the electric wire 30 is extended obliquely upward and rearward from the shell body 61. The shell main body 61 is fixed to the outer surface of the motor case by bolts (not shown) together with the shell front side portion 61A and the shell rear side portion 61B.

  A shield cylinder 62 is provided on the rear side of the shell body 61. The inner peripheral side of the shield cylinder 62 is an electric wire insertion hole 63 through which the electric wire 30 is inserted. The lower edge portion of the shield tube 62 on the shell body 61 side is bent downward (outside of the shield tube 62), and the upper portion of the bent portion (inner portion of the shield tube 62) is rounded. The arcuate corner 64 is formed.

  The shield cylinder 62 is fixed by being screwed to the shell main body 61 so that the axis of the electric wire insertion hole 63 faces obliquely rearward along the inclination of the shell rear side portion 61B. A buffer member 65 made of an insulating material is provided on the inner peripheral surface of the shield cylinder 62 so that the insulating coating 31 is not damaged even when the electric wire 30 comes into contact therewith.

  The electric wire 30 extending from the cylindrical protruding portion 46 is bent upward at one end at the rear end portion of the shell main body 61 (the rear end portion of the shell rear side portion 61B), and then inserted into the shield tube 62. Then, the electric wire 30 is bent obliquely rearward again in the shield tube 62 and extends rearward from the shield tube 62. The first bent portion 34, which is the front bent portion of the bent portion of the electric wire 30, is in contact with the arc-shaped corner portion 64 of the shield tube 62 from the upper front side. The second bent portion 35, which is the rear bent portion of the bent portion of the electric wire 30, is in contact with the upper surface of the inner peripheral surface of the shield tube 62 from below. That is, the portion located between the cylindrical projecting portion 46 and the wire insertion hole 63 in the electric wire 30 is bent at two locations, so that the upper and lower portions 2 on the inner peripheral surface of the shield tube 62 (the electric wire insertion hole 63). The inner peripheral surface of the wire insertion hole 63 and the electric wire 30 are in contact with each other (two locations facing each other across the electric wire 30).

  And the outer peripheral surface of the shield cylinder 62 is covered with the end portion of the braided wire 33, and the caulking ring 36 is caulked on the outer peripheral side thereof. Thereby, the braided wire 33 and the shield cylinder 62 are connected so as to be conductive.

Next, a method for manufacturing the above-described molded connector M will be described.
The mold connector M includes a molding process for molding the mold resin portion 40, a sealant application process for applying the sealant 48, and a tube mounting process for bringing the heat shrinkable tube 49 into close contact with the sealant 48. Manufactured.

Hereinafter, this process will be described in order.
(1) Molding step When the terminal fitting 20 crimped to the terminal portion of the electric wire 30 is set in a mold (not shown) and molten resin is injected into the mold at a high pressure, the cylindrical protrusion 46 and the annular flat portion The mold resin portion 40 having the above-described shape including the surface 47 is molded.

(2) Sealant application step The mold resin part 40 is taken out of the mold and set so that the protruding end side of the cylindrical protruding part 46 faces upward. Then, a sealant 48 is applied from the outer peripheral surface of the insulating coating 31 to the outer peripheral surface of the cylindrical protrusion 46. At this time, the sealant 48 is applied to the entire circumference so that the mold resin portion 40 is rotated about the axis of the electric wire 30. Since the sealant 48 gradually flows down due to gravity, the sealant 48 is transmitted from the outer peripheral surface of the insulating coating 31 to the end surface of the cylindrical protrusion 46 and the outer peripheral surface of the cylindrical protrusion 46, and finally reaches the annular flat surface 47. Since the annular flat surface 47 is horizontal, the sealant 48 is received without flowing further downward. Then, when the sealant 48 fills the stepped portion at the end of the mold resin portion 40 (the step between the cylindrical protruding portion 46 and the cylindrical portion 45) and a predetermined thickness is applied around the insulating coating 31. Finish the work.

  As described above, the flow of the sealant 48 is prevented by the annular flat surface 47, so that the amount of the sealant 48 applied can be visually confirmed. Therefore, the application amount can be easily managed so that the application amount of the sealant 48 is not insufficient or excessive, and the operation can be easily performed.

(3) Tube mounting step After the sealant 48 is cured, the heat-shrinkable tube 49 previously passed through the electric wire 30 is moved to the mold resin portion 40 side, and the portion where the sealant 48 is applied is covered. Then, the heat shrinkable tube 49 is heated and contracted. Then, the heat-shrinkable tube 49 contracts, and the sealant 48 is tightened from the entire circumference so as to be in close contact with each other.

  Since the inner diameter of the heat-shrinkable tube 49 is larger than the outer dimension of the cylindrical portion 45 before contracting, the heat-shrinkable tube 49 can be moved smoothly. Here, if the sealant 48 is tightened with a rubber tube or the like, for example, when the tube is moved to a predetermined position, the tube must be elastically expanded and deformed. However, by using the heat-shrinkable tube 49 as in this embodiment, such trouble is eliminated and the tube mounting operation can be easily performed.

  The molded connector M thus manufactured is fitted to the device-side connector 10 so that the connector fitting portion 41 is fitted into the fitting recess 14. Then, since the terminal fitting 20 overlaps the device side terminal 15, the bolt is passed through the bolt insertion hole 23 of the terminal fitting 20, and the bolt is tightened to the device side terminal 15. Thereafter, the shield shell 60 is put on the upper side of the mold connector M and fixed to the outer surface of the motor case.

According to the present embodiment, the following operations and effects are achieved.
When the electric wire 30 is repeatedly bent greatly, the accompanying force acts on the rear end portion of the mold resin portion 40. At this time, since the sealant 48 is applied from the outer peripheral surface of the insulating coating 31 to the outer peripheral surface of the cylindrical projecting portion 46, the electric wire 30 is repeatedly bent over a long period of time, and the resulting force is the rear end portion of the mold resin portion 40. The sealant 48 is prevented from being peeled off from the mold resin part 40 even if it continues to act, and the space between the mold resin part 40 and the insulating coating 31 is kept sealed. As a result, it is possible to prevent a slight gap from being formed between the mold resin portion 40 and the insulating coating 31, thereby preventing water from entering due to a capillary phenomenon or the like and ensuring high waterproofness.

  Further, since the sealant 48 is fastened to the cylindrical protrusion 46 by the heat shrinkable tube 49, the sealant 48 is not peeled off from the outer peripheral surface of the cylindrical protrusion 46, and high waterproofness can be realized.

  Further, by bending a portion of the electric wire 30 located between the cylindrical protruding portion 46 and the electric wire insertion hole 63, two upper and lower positions (electric wires) on the inner peripheral surface of the shield tube 62 (electric wire insertion hole 63). Since the inner circumferential surface of the electric wire insertion hole 63 and the electric wire 30 are in contact with each other at two locations facing each other with the 30 interposed therebetween, the bending of the electric wire 30 due to vibration or the like is suppressed in the shield cylinder 62. Thereby, it can avoid that the electric wire 30 bends greatly in the mold resin part 40 vicinity, and a big force acts on the edge part.

  Further, according to the present embodiment, the sealant 48 is applied from the outer peripheral surface of the insulating coating 31 to the outer peripheral surface of the cylindrical protrusion 46, and therefore, between the outer peripheral surface of the insulating coating 31 and the end surface of the mold resin portion. Compared with the case where it is applied only to the surface, the adhesion area between the sealant 48 and the mold resin portion 40 increases. Thereby, the adhesive force of the sealant 48 with respect to the mold resin part 40 is increased, and the sealant 48 becomes difficult to peel off from the mold resin part 40, so that high waterproofness can be ensured.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, the molded connector M is for supplying electric power to a motor (not shown). However, according to the present invention, electric power is supplied not only to the motor but also to various devices. May be for.

(2) In the above embodiment, the metal shield shell 60 is provided on the upper surface of the mold resin portion 40, but the shield shell may not be provided.
(3) In the above embodiment, the electric wires 30 are shielded by being collectively surrounded by the braided wire 33, but the electric wires do not necessarily have to be collectively shielded, and for each electric wire. It may be shielded or applied to a molded connector using an unshielded electric wire.

(4) In the above embodiment, the shield cylinder 62 and the shell main body 61 are separated from each other, and the shield cylinder 62 is fixed to the shell main body 61 with screws. And may be integrally formed.
(5) In the above embodiment, the annular flat surface 47 is a surface that is substantially perpendicular to the outer peripheral surface of the cylindrical projecting portion 46, but is not limited to this, for example, on the outer peripheral surface of the cylindrical projecting portion. Alternatively, the surface may be a gentle slope.

  (6) In the above embodiment, the heat-shrinkable tube 49 is covered around the sealant 48. However, according to the present invention, a heat-shrinkable tube may be used as long as it is a shrinkable tube. A tube or the like may be used. Moreover, it is not necessary to put a tube around the sealant.

  (7) In the above embodiment, the portion of the electric wire 30 located between the cylindrical protrusion 46 and the electric wire insertion hole 63 is in contact with the inner peripheral surface of the shield tube 62 at two locations. It is not always necessary to make such contact.

Side sectional view showing the mating state between the molded connector and the device side connector Same part cutout plan view Side view of molded connector before applying sealant Plan view Rear view Side cross-sectional view of molded connector

Explanation of symbols

M ... Mold connector 20 ... Terminal fitting 30 ... Electric wire 31 ... Insulation coating 32 ... Core wire 33 ... Braided wire 40 ... Mold resin part (mold resin layer)
46 ... cylindrical projection 47 ... annular flat surface 48 ... sealant (sealant)
49 ... Heat shrinkable tube (shrinkable tube)
60 ... Shield shell 61 ... Shell body 62 ... Shield tube (wire guide part)
63 ... Wire insertion hole

Claims (9)

A molded connector in which a terminal fitting is fixed to an exposed core wire by peeling off an insulating coating of an electric wire, and a portion including the fixed portion and the tip of the insulating coating is molded with a synthetic resin to form a mold resin layer. ,
A cylindrical projecting portion surrounding the insulating coating is integrally provided at an end of the mold resin layer opposite to the tip of the electric wire, and the projecting end of the cylindrical projecting portion includes A sealing agent is applied to seal between the inner peripheral portion of the cylindrical protruding portion and the insulating coating from the outer peripheral surface of the insulating coating of the electric wire extending from the cylindrical protruding portion to the outer peripheral surface of the cylindrical protruding portion. Mold connector characterized by being made. The mold connector according to claim 1, wherein a shrinkable tube for fastening the sealant from the entire circumference is covered around the sealant. The molded connector according to claim 1, wherein a metal shield shell is provided on an outer surface of the mold resin layer. The shield shell is formed with an electric wire guide part positioned on the extension side of the electric wire with respect to the tubular projecting part, and an electric wire insertion hole for inserting the electric wire is formed in the electric wire guide part. The molded connector according to claim 3. The portion of the electric wire located between the tubular projecting portion and the electric wire insertion hole is bent, so that the electric wire insertion is performed at two locations on the inner peripheral surface of the electric wire insertion hole facing each other with the electric wire interposed therebetween. The molded connector according to claim 4, wherein an inner peripheral surface of the hole is in contact with the electric wire. The said electric wire is surrounded and shielded by the braided wire which makes | forms a cylindrical shape, The said braided wire is crimped to the outer peripheral part of the said electric wire guide part, The Claim 4 or Claim 5 characterized by the above-mentioned. Mold connector. The shield shell is composed of a shell main body that covers the outer surface of the mold resin layer, and the wire guide portion that is a separate component from the shell main body, and the wire guide portion is screwed to the shell main body. The molded connector according to any one of claims 4 to 6, characterized in that: A method of manufacturing a molded connector in which a terminal fitting is fixed to a core wire exposed by peeling off an insulating coating of an electric wire, and a portion including the fixed portion and the tip of the insulating coating is molded with a synthetic resin to form a mold resin layer Because
Mold molding step of molding the mold resin layer in a shape including a cylindrical projecting portion surrounding the insulating coating of the electric wire and an annular flat surface on the outer peripheral side of the base end portion of the cylindrical projecting portion. When,
Then, set so that the protruding end side of the cylindrical protruding portion faces upward, and from the outer peripheral surface of the insulating coating to the outer peripheral surface of the cylindrical protruding portion, the inner peripheral portion of the cylindrical protruding portion and the insulating coating A sealant application process for applying a sealant that seals the gap;
The manufacturing method of the molded connector characterized by performing. A tube that holds the heat-shrinkable tube extrapolated to the electric wire in a portion where the sealant is applied, heats the heat-shrinkable tube at a predetermined temperature, and shrinks the heat-shrinkable tube around the sealant. The method for manufacturing a molded connector according to claim 8, wherein a mounting step is performed.

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