JP2017076455A - Connector and terminal-equipped wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the impact of a bent coated wire on a connection between a terminal fitting and a core wire.SOLUTION: A connector A comprises: a barrel part 23, formed at the rear end of a terminal fitting 15, which is crimped to an exposed region of a core wire 12 in a non-contact state with an insulation coating 13; a mold part 30 which fluid-tightly covers the entire part of the exposed region 14 including a crimped part, of the core wire 12, to the barrel part 23 as well as the front end of the insulation coating 13; a housing 35 provided with a terminal housing chamber 36 which houses the entire part of the terminal fitting 15 as well as only a region, of the mold part 30, further front than the front end of the insulation coating 13; and reinforcement means 33 which suppresses the deformation of a projection 32, of the mold part 30, to the outside of the housing 35.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a connector and an electric wire with a terminal.

  In Patent Document 1, a barrel portion of a copper terminal fitting is connected by crimping to a front end portion of a covered electric wire in which an aluminum core wire is surrounded by an insulation coating, and a contact portion between the core wire and the terminal fitting is molded with a synthetic resin mold. A technique for anticorrosion by surrounding in a liquid-tight manner is disclosed. The mold part covers up to the front end of the insulation coating behind the terminal fitting.

  In the terminal fitting, a wire barrel portion that is crimped to the core wire is formed, but an insulation barrel portion that is crimped to the insulating coating is not formed. Therefore, the entire terminal fitting and the front end portion of the mold part can be accommodated in the housing without enlarging the volume of the terminal accommodating chamber formed in the housing.

JP 2012-003856 A

  Since the insulation barrel part is not formed on the terminal fitting, the molded part has not only a waterproof function but also a bending that suppresses the influence of the bending of the covered wire to the wire barrel part instead of the insulation barrel part. A suppression function is also required. However, since the conventional mold part is required to be as small as possible in order to be accommodated in the terminal accommodating chamber, it is thin. Therefore, the bending rigidity of the mold part is low and the bending suppressing function of the mold part is insufficient.

  This invention is completed based on the above situations, Comprising: It aims at suppressing the influence of the bending of a covered electric wire reaching the connection part of a terminal metal fitting and a core wire.

The connector of the first invention is
A coated electric wire having a core wire and an insulating coating surrounding the core wire, wherein the core wire is exposed at the front end; and
Terminal fittings,
A barrel portion formed at the rear end portion of the terminal metal fitting and crimped so as to surround the front end portion of the covered electric wire;
A mold part that covers the front end part including the crimping part with the barrel part among the covered electric wires in a liquid-tight manner, and
A housing in which a terminal accommodating chamber for accommodating the entire terminal fitting and a front end side region of the mold part is formed;
It is characterized in that it is provided with a reinforcing means that is formed in a protruding portion that protrudes out of the housing of the mold portion and that increases the rigidity of the protruding portion.

The electric wire with terminal of the second invention is
A coated electric wire having a core wire and an insulating coating surrounding the core wire, wherein the core wire is exposed at the front end; and
Terminal fittings,
A barrel portion formed at a rear end portion of the terminal metal fitting and crimped so as to surround the front end portion of the insulating coating;
A mold part that liquid-tightly covers a front end part including a crimping part with the barrel part of the covered electric wire,
The entirety of the terminal fitting and the front end side region of the mold part are adapted to be accommodated in a terminal accommodating chamber formed in the housing,
It is characterized in that it is provided with a reinforcing means that is formed in a protruding portion that protrudes out of the housing of the mold portion and that increases the rigidity of the protruding portion.

  According to the first and second inventions, since the rigidity of the protruding portion that protrudes out of the housing of the mold portion is enhanced by the reinforcing means, the protruding portion of the mold portion is hardly deformed. Thereby, it can suppress that the influence of the bending of the covered electric wire behind a mold part reaches the connection part of a terminal metal fitting and a core wire.

The perspective view of the connector of Example 1 Front view of connector XX sectional view of FIG. Perspective view of electric wire with terminal Side view of electric wire with terminal Cross section of the electric wire with terminal The perspective view showing the state before forming a mold part in an electric wire with a terminal Sectional view showing the state before forming the molded part in the electric wire with terminal Plan view showing the state before forming the molded part in the electric wire with terminal The perspective view of the electric wire with a terminal which constitutes the connector of Example 2. Sectional drawing of the connector of Example 2 The top view of the connector of Example 2 Rear view of the connector of Example 3 The perspective view of the electric wire with a terminal which constitutes the connector of Example 3 The perspective view showing the state which connected the some electric wire with a terminal which comprises the connector of Example 3

  1st and 2nd invention makes the thickness of the protrusion part outside the said housing among the said mold parts thicker than the thickness of the accommodating part accommodated in the said terminal accommodating chamber among the said mold parts. And the said reinforcement means may be comprised. According to this configuration, the rigidity of the mold part can be increased without complicating the shape of the mold part.

In the first and second aspects of the present invention, the reinforcing means may be constituted by a convex portion formed on the outer periphery of the protruding portion of the mold portion. According to this structure, the rigidity of a mold part can be improved by making the outer periphery of a protrusion part uneven | corrugated shape.
In the first and second aspects of the present invention, the housing is formed by arranging a plurality of the terminal accommodating chambers in parallel, and by contacting the outer surfaces of the protruding portions of the adjacent mold parts, A reinforcing means may be configured. According to this configuration, the rigidity of the mold part can be increased without complicating the shape of the mold part.

In the first and second inventions, the outer surfaces of the protruding portions of the adjacent mold portions may be connected by concave-convex fitting. According to this structure, the bending rigidity of a mold part can be improved more.
In the first and second aspects of the invention, the outer surfaces of the adjacent mold parts may be connected by fitting a front-rear direction rib and a front-rear direction groove. According to this structure, the adjacent electric wire with a terminal can be inserted in a terminal storage chamber separately, connecting.

  In the first invention, the barrel portion is pressure-bonded so as to surround the exposed region of the core wire in a non-contact state with the insulating coating, and the mold portion is connected to the barrel portion of the core wire. The entire exposed region including the crimping portion and the front end portion of the insulating coating are covered in a liquid-tight manner, and the terminal housing chamber includes the entire terminal fitting and the front end of the insulating coating in the mold portion. Only the front area may be accommodated. According to this configuration, since the insulation barrel portion to be crimped to the insulating coating is not formed at the rear end portion of the terminal fitting, the terminal fitting in the mold portion can be obtained without increasing the volume of the terminal accommodating chamber. A region surrounding the terminal can be accommodated in the terminal accommodating chamber.

<Example 1>
A first embodiment of the present invention will be described below with reference to FIGS. In the following description, with respect to the front-rear direction, the right side in FIGS. As for the vertical direction, the directions appearing in FIGS. 2, 3, 5 and 6 are defined as “upper” and “lower” as they are. The connector A according to the present embodiment includes the electric wire with terminal 10 and a housing 35.

  The terminal-attached electric wire 10 is a form in which the covered electric wire 11, the terminal fitting 15, and the molded part 30 are integrated, and constitutes a conductive path that is elongated in the front-rear direction as a whole. The covered electric wire 11 is composed of a core wire 12 made of aluminum or an aluminum alloy and a substantially cylindrical insulating coating 13 surrounding the core wire 12. At the front end portion of the covered electric wire 11, the insulating coating 13 is peeled off by a predetermined length, and the core wire 12 is exposed. A terminal fitting 15 to be described later is connected to the front end portion of the exposed region 14 (see FIGS. 6 and 8) of the core wire 12 by pressure bonding.

  The terminal fitting 15 is formed by bending a copper or copper alloy plate material punched into a predetermined shape, and has an elongated shape in the front-rear direction as a whole. As shown in FIGS. 7 and 8, the terminal fitting 15 is composed of a terminal body portion 16 constituting the front end side region and a barrel portion 23 constituting the rear end side region.

  The terminal main body portion 16 includes a box-shaped connecting portion 17 having a rectangular tube shape and a connecting portion 18 connected to the rear end of the box-shaped connecting portion 17. A tab of a mating terminal (not shown) having a male shape is inserted into and connected to the box-shaped connecting portion 17 from the front of the terminal fitting 15. The connecting portion 18 has a form in which a pair of side wall portions 20 are raised from the left and right side edges of the bottom wall portion 19. The bottom wall portion 19 of the connecting portion 18 is continuous with the lower wall portion 21 of the box-like connecting portion 17, and the bottom wall portion 19 and the lower wall portion 21 constitute a base portion 22 of the terminal main body portion 16. doing.

  The barrel portion 23 is a caulking that forms a pair extending in the circumferential direction (direction intersecting the length direction of the terminal fitting 15) from both side edges in the width direction (left-right direction) of the substrate portion 24 in the longitudinal direction. It consists of a piece 27. As shown in FIGS. 6 and 8, the substrate portion 24 has a bent shape so that the front end portion thereof is lowered stepwise. Thereby, a low plate portion 25 is formed at the front end portion of the substrate portion 24, and a region behind the low plate portion 25 in the substrate portion 24 is a raised plate portion 26. The length dimension in the front-rear direction of the raised plate part 26 is set longer than the front-rear dimension of the low plate part 25. The low plate portion 25 is flush with the rear end portion of the base portion 22 at the same height, and the raised plate portion 26 is raised with respect to the base portion 22.

  The barrel portion 23 is crimped to the front end portion of the covered electric wire 11 (core wire 12) by an automatic machine (not shown) called an applicator. In the crimping step, the front end portion of the core wire 12 placed on the rear end portion of the substrate portion 24 (lifting plate portion 26) is bent and deformed so as to surround the pair of crimping pieces 27. Thus, as shown in FIG. 8, a crimping space 28 surrounded by the substrate portion 24 and the pair of caulking pieces 27 is formed inside the barrel portion 23. The front end portion of the core wire 12 accommodated in the crimping space 28 and the terminal fitting 15 are fixed to be conductive. In the crimped state, the front end portion of the covered electric wire 11 and the terminal fitting 15 are connected in a substantially straight line.

  Of the crimping space 28 of the barrel portion 23, the core wire 12 is accommodated only in the rear end portion. The Since the pressure bonding space 28 of the barrel portion 23 is narrow, a means is required to facilitate the molten resin (not shown) to flow into the pressure bonding space 28 in the molding process of the mold portion 30. As shown in FIG. 8, a communicating portion 29 is formed by widening the distance between the extended end portions 27 </ b> E of the pair of caulking pieces 27 in a region in front of the front end of the core wire 12 in the barrel portion 23. The communication portion 29 allows the crimping space 28 and the outer peripheral surface of the barrel portion 23 to communicate with each other. The communication portion 29 opens at the center in the width direction on the upper surface of the barrel portion 23. Further, the width dimension of the opening region in the plan view of the communication portion 29 is substantially constant over the front and rear ends.

  The mold part 30 is formed after the terminal fitting 15 is pressure-bonded to the core wire 12. The molding of the mold part 30 is carried out by accommodating the entire barrel part 23, the rear end part of the connecting part 18, and the front end part of the insulating coating 13 in the covered electric wire 11 in a known mold (not shown). This is performed by injecting molten resin (not shown) into the interior of the container and solidifying (curing) the injected molten resin. In the molding process, part of the molten resin flows into the crimping space 28 of the barrel portion 23 through the communication portion 29.

  As shown in FIG. 6, the molded mold part 30 includes an entire barrel part 23, an entire exposed region 14 including a crimped part with the barrel part 23 in the core wire 12, and an insulating coating 13 in the covered electric wire 11. Is surrounded in a liquid-tight manner over the entire circumference. Further, a part of the front end portion of the mold portion 30 is accommodated inside the connecting portion 18 in front of the barrel portion 23. The lower surface (outer surface) of the bottom region of the mold portion 30 that covers the raised plate portion 26 of the barrel portion 23 is substantially the same height as the lower surface (outer surface) of the base portion 22 of the terminal body portion 16. The position is slightly higher than the lower surface.

  As shown in FIG. 3, the terminal-attached electric wire 10 in which the front end portion of the covered electric wire 11, the terminal fitting 15 and the mold portion 30 are integrated is inserted into the terminal accommodating chamber 36 from the rear of the housing 35. In the inserted state, the entire terminal fitting 15 and most of the exposed region 14 of the core wire 12 excluding the rear end are accommodated in the terminal accommodating chamber 36. Therefore, the entire region of the covered wire 11 in which the insulating coating 13 surrounds the core wire 12 is arranged outside the terminal accommodating chamber 36 (housing 35).

  A region of the mold portion 30 that is housed in the terminal housing chamber 36 and surrounds the entire terminal fitting 15 and the exposed region 14 of the core wire 12 in a liquid-tight manner is a housing portion 31. In the mold portion 30, a region surrounding the rear end portion of the exposed region 14 of the core wire 12 and the front end portion of the insulating coating 13 outside the rear of the terminal accommodating chamber 36 (housing 35) in a liquid-tight manner is the protruding portion 32. It has become. The protrusion 32 of the mold part 30 has a function of suppressing the influence of the bending to the terminal fitting 15 side when a region behind the mold part 30 of the molded part 30 covered electric wire 11 is bent up and down. have.

  That is, a pair of upper and lower reinforcing portions 34 is formed on the protruding portion 32 of the mold portion 30 as reinforcing means 33 for increasing the bending rigidity in the vertical direction of the mold portion 30. The reinforcing portion 34 has a form in which the thickness of the upper surface side of the insulating coating 13 and the thickness of the lower surface side of the insulating coating 13 are made larger than the thickness of the housing portion 31 over substantially the entire length of the protruding amount region. In other words, the height dimension of the mold part 30 is larger than that of the accommodating part 31 in the reinforcing part 34 (projecting part 32). In addition, the width dimension of the reinforcement part 34 (projection part 32) is the same as the width dimension of the accommodating part 31. FIG.

  As described above, the connector A according to the first embodiment includes the housing 35 in which the plurality of terminal accommodating chambers 36 are formed, and the plurality of terminal-attached electric wires 10 that are individually inserted into the terminal accommodating chambers 36. The terminal-attached electric wire 10 includes a covered electric wire 11, a terminal fitting 15, and a mold part 30. The covered electric wire 11 has a core wire 12 and an insulating coating 13 surrounding the core wire 12, and the core wire 12 is exposed at the front end portion of the covered electric wire 11. At the rear end portion of the terminal fitting 15, a barrel portion 23 is formed that is pressure-bonded so as to surround the exposed region 14 of the core wire 12 without being in contact with the insulating coating 13. That is, the barrel portion 23 is crimped to the front end portion of the covered electric wire 11.

  The mold portion 30 covers the front end portion of the covered electric wire 11 (that is, the entire exposed region 14 including the crimp portion with the barrel portion 23 of the core wire 12 and the front end portion of the insulating coating 13) in a liquid-tight manner. . The core wire 12 is made of aluminum or an aluminum alloy, whereas the terminal fitting 15 is made of copper or a copper alloy, so that the core wire 12 is used as an anticorrosion means at the contact portion between the core wire 12 and the terminal fitting 15 (barrel portion 23). And the terminal fitting 15 (barrel portion 23) are surrounded by a synthetic resin mold portion 30 in a liquid-tight manner.

  Since the outer diameter of the insulating coating 13 is larger than the outer diameter of the core wire 12, the outer diameter of the region (protruding portion 32) surrounding the insulating coating 13 in the mold portion 30 is the region surrounding the core wire 12 in the mold portion 30 ( It becomes larger than the accommodating part 31). In view of this point, an insulation barrel portion that is crimped so as to surround the insulating coating 13 is not formed at the rear end portion of the terminal fitting 15 that constitutes the terminal-attached electric wire 10 of the first embodiment. . The terminal-containing electric wire 10 is accommodated in the terminal accommodating chamber 36 only in the entire terminal fitting 15 and the front end portion of the mold portion 30 (that is, only the region in front of the front end of the insulating coating 13 in the mold portion 30). ). However, the insulating coating 13 is not accommodated in the terminal accommodating chamber 36. Thereby, the entire region surrounding the terminal fitting 15 in the mold part 30 could be accommodated in the terminal accommodating chamber 36 without increasing the volume (height dimension or width dimension) of the terminal accommodating chamber 36. .

  The insulation barrel portion that is not formed on the terminal fitting 15 of this embodiment has a bending suppression function that suppresses the influence of the bending of the covered electric wire 11 outside the housing 35 on the crimped portion between the terminal fitting 15 and the core wire 12. It has. Therefore, the mold part 30 of the present embodiment is required to have not only a waterproof function but also a bending suppression function in place of the insulation barrel part. In view of this, the terminal-attached electric wire 10 of this embodiment is provided with a reinforcing portion 34 as a reinforcing means 33 for applying a terminal fitting to the rigidity of the protruding portion 32 protruding out of the housing 35 of the molded portion 30.

  The reinforcing portion 34 has a thickness in the vertical direction of the protruding portion 32 outside the housing 35 in the mold portion 30, and a thickness in the vertical direction of the accommodating portion 31 accommodated in the terminal accommodating chamber 36 in the mold portion 30. This is a thicker form. According to this configuration, the bending rigidity in the vertical direction of the protruding portion 32 can be increased without complicating the shape of the mold portion 30. Thus, since the bending rigidity of the protrusion part 32 of the mold part 30 was improved, the protrusion part 32 becomes difficult to deform | transform. Thereby, even if the covered electric wire 11 is bent behind the mold part 30, there is no possibility that the influence of the bending of the covered electric wire 11 is transmitted to the barrel part 23.

  In addition, the barrel portion 23 of the terminal fitting 15 includes a substrate portion 24 and a pair of crimping pieces 27. The board part 24 is connected to the base part 22 of the terminal body part 16, and the crimping pieces 27 extend in pairs from both side edges of the board part 24 in the width direction. The barrel portion 23 is crimped and connected to the core wire 12 placed on the substrate portion 24 so that the outer periphery thereof is surrounded by a pair of caulking pieces 27. The barrel portion 23 is surrounded by the mold portion 30 over the entire circumference, but most of the terminal body portion 16 in front of the barrel portion 23 of the terminal fitting 15 is not covered with the mold portion 30. The entire terminal fitting 15 including the barrel portion 23 is accommodated in the terminal accommodating chamber 36 of the housing 35.

  As described above, the mold part 30 covers the substrate part 24 of the barrel part 23 but does not cover the base part 22 of the terminal body part 16. Therefore, there is a concern that a step is generated between the outer surface of the base portion 22 and the outer surface of the region of the mold portion 30 that covers the barrel portion 23. When such a level difference occurs, a gap is generated between the outer surface of the base portion 22 and the inner wall surface of the terminal accommodating chamber 36 when the terminal fitting 15 is accommodated in the terminal accommodating chamber 36. There is a concern that the posture of the metal fitting 15 becomes unstable.

  Therefore, the base plate portion 24 of the barrel portion 23 is configured to be raised with respect to the base portion 22 of the terminal main body portion 16. According to this configuration, the height difference between the lower surface of the base portion 22 where the terminal main body portion 16 is exposed and the lower surface of the region surrounding the barrel portion 23 in the mold portion 30 can be reduced or eliminated. Therefore, even if the shape of the inner wall of the terminal accommodating chamber 36 is flat, the terminal fitting 15 can be accommodated in the terminal accommodating chamber 36 in a stable posture.

  Further, the barrel portion 23 formed at the rear end portion of the terminal fitting 15 is a form in which a pair of caulking pieces 27 are extended from both side edges in the width direction of the substrate portion 24, and is formed in the exposed region 14 of the core wire 12. On the other hand, it is crimped so that the extended end portions 27E of the caulking pieces 27 forming a pair may be surrounded. And the whole exposed area | region 14 including the crimping | compression-bonding part with the barrel part 23 among the core wires 12 is covered with the mold part 30 in liquid-tight form.

  In the electric wire with terminal 10 according to the present embodiment, the front end of the exposed region 14 of the core wire 12 is arranged behind the front end of the crimping piece 27. Therefore, in the molding process of the mold part 30, it is necessary to increase the reliability of the anticorrosion function by allowing the molten resin to flow into the crimping space 28 of the barrel part 23 without a gap and covering the front end surface of the core wire 12 with the mold part 30. However, since the opening at the front end of the crimping space 28 of the barrel portion 23 is narrow, there is a problem that it is difficult for molten resin to flow into the crimping space 28.

  Therefore, in this embodiment, a communication portion 29 is formed in the barrel portion 23 to open the crimping space 28 of the barrel portion 23 to the outer peripheral surface of the barrel portion 23 in front of the front end of the core wire 12. By forming such a communication portion 29, when molding the mold portion 30, the molten resin easily flows into the crimping space 28 of the barrel portion 23 by passing through the communication portion 29. Further, since the communication portion 29 is formed between the extended end portions 27E of the caulking pieces 27 that form a pair, the substrate portion 24 does not need to be cut out, and the strength of the substrate portion 24 does not need to be reduced.

<Example 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. In the connector B of the second embodiment, the molded portion 41 constituting the terminal-attached electric wire 40 has a configuration different from that of the first embodiment. Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the same configurations, and descriptions of the structure, operation, and effects are omitted.

  The accommodating part 42 of the mold part 41 of the present Example 2 is the same form as the accommodating part 31 of Example 1. FIG. A plurality of flange portions 46 and a plurality of convex portions 45 as reinforcing means 44 are formed on the outer periphery of the protruding portion 43 of the mold portion 41. The plurality of flange portions 46 are arranged so as to be arranged at intervals in the front-rear direction (the protruding direction of the protruding portion 43 of the mold portion 41). Among the plurality of convex portions 45, the convex portions 45 arranged on both upper and lower surfaces of the protruding portion 43 make a pair, and the convex portions 45 arranged on the left and right side surfaces of the protruding portion 43 make a pair. The convex portions forming a pair connect the flange portions 46 adjacent to each other in the front-rear direction.

  Moreover, the convex part 45 which is distribute | arranged on both upper and lower surfaces and makes a pair, and the convex part 45 which is distribute | arranged on both right-and-left both sides and makes a pair are distribute | arranged alternately in the front-back direction. Therefore, the flange part 46 with which the convex part 45 which makes a pair up and down on the front surface is continued, and the convex part 45 which makes a pair with the left and right part continues on the rear surface. Moreover, the convex part 45 which makes the convex part 45 which makes a pair on the right and left on the front surface is continued to the convex part 45 which makes a pair on the rear surface. Thus, in the connector B and the terminal-attached electric wire 40 of the second embodiment, the reinforcing means 44 is formed by forming the convex portion 45 on the outer periphery of the protruding portion 43 of the mold portion 41 and making the outer periphery of the protruding portion uneven. It is configured. The reinforcing means 44 enhances the bending rigidity of the protrusion 43 of the mold part 41 in the vertical direction and the horizontal direction.

<Example 3>
Next, a third embodiment of the present invention will be described with reference to FIGS. In the connector C of the third embodiment, the mold part 51 constituting the terminal-attached electric wire 50 is configured differently from the first embodiment. Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the same configurations, and descriptions of the structure, operation, and effects are omitted.

  The vertical dimension of the protruding part 52 of the mold part 51 of the third embodiment is larger than the vertical dimension of the accommodating part 53 of the mold part 51, and the horizontal dimension of the protruding part 52 is set larger than the lateral dimension of the accommodating part 53. That is, the upper surface portion of the protruding portion 52 protrudes upward from the upper surface portion of the accommodating portion 53, the lower surface portion of the protruding portion 52 protrudes downward from the lower surface portion of the accommodating portion 53, and the left side surface portion of the protruding portion 52 is the accommodating portion 53. The right side surface portion of the protruding portion 52 protrudes to the right from the right side surface portion of the housing portion 53. The upper and lower side surfaces and the left and right side surfaces of the protruding portion 52 function as reinforcing means 54 for increasing the bending rigidity of the mold portion 51.

  Further, a groove 55 is formed on the upper surface portion and the left side surface portion of the protruding portion 52 so as to extend in the front-rear direction. A rib 56 having a shape extending in the front-rear direction is formed on the lower surface portion and the right side surface portion of the protrusion 52 so as to protrude. The cross-sectional shape of the groove 55 is such that the entrance is narrow and the back side is expanded in a substantially circular shape. The cross-sectional shape of the rib 56 is a shape having a narrow base end portion and a substantially circular portion having a larger diameter than the width of the base end portion. The groove 55 and the rib 56 are adapted to be concavo-convexly fitted by relative displacement in the front-rear direction.

  When the plurality of electric wires with terminals 50 are inserted from the rear of the housing 35 into the terminal accommodating chambers 36 adjacent to each other in the vertical direction and the terminal accommodating chambers 36 adjacent to the left and right, as shown in FIG. Then, the lower surface part of the mold part 51 located on the upper side and the upper surface part of the mold part 51 located on the lower side are in contact with each other. By this abutting action, the bending rigidity in the vertical direction of the two electric wires with terminals 50 adjacent to the upper and lower sides is increased. Moreover, since the groove | channel 55 of one mold part 51 and the rib 56 of the other mold part 51 are connected by the fitting state in the mold parts 51 adjacent to the upper and lower sides, the bending rigidity of an up-down direction is further improved. Yes.

  Similarly, between the mold parts 51 adjacent to the left and right, the right side surface part of the mold part 51 located on the left side and the left side surface part of the mold part 51 located on the right side are in contact with each other. By this abutting action, the bending rigidity in the left-right direction of the two terminal-equipped electric wires 50 adjacent to the left and right is increased. Moreover, since the groove | channel 55 of one mold part 51 and the rib 56 of the other mold part 51 are connected by the fitting state in the mold parts 51 adjacent to right and left, the bending rigidity of the left-right direction is further improved. Yes.

  In the connector C of the third embodiment, a plurality of terminal accommodating chambers 36 are arranged in the housing 35 in parallel in the vertical direction and the horizontal direction, and the outer surfaces of the protruding portions 52 of the adjacent mold portions 51 are brought into contact with each other. Thus, the reinforcing means 54 is configured. According to this configuration, the rigidity of the mold part 51 can be increased without complicating the shape of the mold part 51.

  Moreover, since the outer surfaces of the protrusions 52 of the adjacent mold parts 51 are connected by the concave and convex fitting by the grooves 55 and the ribs 56, the bending rigidity of the mold parts 51 is further increased. Moreover, since the groove | channel 55 and the rib 56 which connect the outer surfaces of the adjacent mold part 51 are the forms extended in the front-back direction, inserting the several adjacent electric wire 50 with a terminal into the terminal accommodating chamber 36 separately. Can do. Further, as shown in FIG. 15, by fitting the groove 55 and the rib 56 outside the housing 35, the adjacent electric wires with terminals 50 are connected to each other, and the connected electric wires 50 with terminals are connected by one action. It is also possible to insert into a plurality of terminal accommodating chambers 36.

<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 Examples 1 to 3, the core wire of the covered electric wire is made of aluminum or aluminum alloy. However, the material of the core wire is not limited to aluminum or aluminum alloy, but may be other metal such as copper or copper alloy. May be.
(2) In Examples 1 to 3, the terminal fitting is made of copper or copper alloy, but the material of the terminal fitting is not limited to copper or copper alloy, but may be other metals such as aluminum or aluminum alloy. Good.
(3) In Example 2 above, the plurality of convex portions are divided and arranged in the front-rear direction, and the convex portion is a form continuous in the front-rear direction over the entire length of the protruding portion of the mold portion. Also good.
(4) The reinforcing means by the convex part of the second embodiment can be applied to the first and third embodiments.
(5) In Example 3 above, the protrusions of the adjacent mold parts are connected by fitting the ribs and grooves, but the protrusions of the adjacent mold parts are simply in contact with each other. You may just touch.
(6) In the first to third embodiments, the terminal fitting is not formed with the insulation barrel portion to be crimped to the insulating coating. However, in the present invention, the terminal fitting is formed with the insulation barrel portion. It can also be applied to.
(7) In the first to third embodiments, the terminal coating chamber does not contain the insulation coating of the covered wire, but the front end portion of the insulation coating may be contained in the terminal packaging chamber.

A, B, C: Connector 10, 40, 50 ... Electric wire with terminal 11 ... Coated electric wire 12 ... Core wire 13 ... Insulation coating 14 ... Exposed area of core wire 15 ... Terminal metal fitting 23 ... Barrel part 30, 41, 51 ... Mold part 35 ... Housing 36 ... Terminal receiving chamber 31,42,53 ... Housing part 32,43,52 ... Protruding part 33,44,54 ... Reinforcing means 45 ... Convex part 55 ... Groove 56 ... Rib

Claims (8)

A coated electric wire having a core wire and an insulating coating surrounding the core wire, wherein the core wire is exposed at the front end; and
Terminal fittings,
A barrel portion formed at the rear end portion of the terminal metal fitting and crimped so as to surround the front end portion of the covered electric wire;
A mold part that covers the front end part including the crimping part with the barrel part among the covered electric wires in a liquid-tight manner, and
A housing in which a terminal accommodating chamber for accommodating the entire terminal fitting and a front end side region of the mold part is formed;
A connector, comprising: a reinforcing portion that is formed in a protruding portion that protrudes out of the housing of the mold portion and that increases the rigidity of the protruding portion.   2. The reinforcing means is configured by making the thickness of the projecting portion thicker than the thickness of the accommodating portion accommodated in the terminal accommodating chamber of the mold portion. The connector described.   The connector according to claim 1 or 2, wherein the reinforcing means is constituted by a convex portion formed on an outer periphery of the protruding portion. The housing is formed by arranging a plurality of the terminal accommodating chambers in parallel,
The connector according to any one of claims 1 to 3, wherein the reinforcing means is configured by bringing the outer surfaces of the adjacent protruding portions into contact with each other.   The connector according to claim 4, wherein outer surfaces of the adjacent projecting portions are connected to each other by concave-convex fitting.   6. The connector according to claim 4 or 5, wherein outer surfaces of the adjacent projecting portions are connected by fitting a front-rear rib and a front-rear groove. The barrel portion is pressure-bonded so as to surround the exposed region of the core wire in a non-contact state with the insulating coating,
The mold part covers the entire exposed region including the crimping part with the barrel part of the core wire and the front end part of the insulating coating in a liquid-tight manner,
7. The terminal housing chamber accommodates the entire terminal fitting and only a region in front of the front end of the insulating coating in the mold portion. The connector according to claim 1. A coated electric wire having a core wire and an insulating coating surrounding the core wire, wherein the core wire is exposed at the front end; and
Terminal fittings,
A barrel portion formed at a rear end portion of the terminal metal fitting and crimped so as to surround the front end portion of the insulating coating;
A mold part that liquid-tightly covers a front end part including a crimping part with the barrel part of the covered electric wire,
The entirety of the terminal fitting and the front end side region of the mold part are adapted to be accommodated in a terminal accommodating chamber formed in the housing,
A terminal-attached electric wire comprising a reinforcing means that is formed in a protruding portion that protrudes out of the housing of the mold portion and that increases the rigidity of the protruding portion.

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