JP2011060543A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a downsized connector for an automobile. <P>SOLUTION: The connector is equipped with: a terminal module 20 comprised pinching an electric wire 90 connected at every terminal 23 by a resin-made case 21 in which a plurality of terminals 23 are stored and a resin-made cover 22 is joined to the case 21; and a housing 10 having a module insertion hole 13 into which the terminal module 20 is inserted. A saw-tooth protruded part 28 of the case 21 and the saw-tooth protruded part 43 of the cover 22 are crimped to a covered part 92 of the electric wire 90, and an engagement protruded part 29 of the case 21 and a protruded part 44 of the cover 22 are crimped to a core wire 91 of the electric wire 90. In the outer peripheral face of either the case 21 or the cover 22 of the terminal module 20 and in the inner peripheral face of the module insertion hole 13 of the housing 10, an engagement hole and an engagement protrusion which are engaged and released mutually are installed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a connector to which an electric wire is connected.

  In conventional female connectors for automobiles, female terminals are fixed to a connector housing by fixing means called a lance for each pole (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 6-88055

However, in the conventional configuration in which the female terminals are fixed to each pole with a lance, the same number of lances as the number of poles must be provided in the connector housing, and there is a problem that the size of the connector increases.
Moreover, when a lance is arrange | positioned between adjacent female terminals, the pitch of a female terminal becomes wide and there exists a subject that a connector enlarges.

  Accordingly, the present invention provides a connector that can be miniaturized.

The connector according to the present invention employs the following means in order to solve the above problems.
The invention according to claim 1 is a resin case (for example, a case 21 in an embodiment to be described later) in which a plurality of terminals (for example, a terminal 23 in an embodiment to be described later) is housed, and a resin made to be coupled to the case. A terminal module (for example, in an embodiment described later) that sandwiches an electric wire (for example, an electric wire 90 in an embodiment described later) connected to each terminal by a cover (for example, a cover 22 in an embodiment described later). A terminal module 20) and a housing (for example, a housing 10 in an embodiment to be described later) having a storage portion (for example, a module insertion hole 13 in an embodiment to be described later) into which the terminal module is inserted, and the terminal module The outer peripheral surface of the case or the cover and the inner peripheral surface of the housing portion of the housing are engaged with each other. A connector (for example, described later) is provided with a possible engagement hole (for example, a locking hole 31 in the embodiment described later) and an engagement protrusion (for example, a locking projection 15a in the embodiment described later). It is the female connector 1) in the Example which does.

  The invention according to claim 2 is the invention according to claim 1, wherein the cover includes a core wire of the electric wire (for example, a core wire 91 in an embodiment to be described later) and a covering portion (for example, a covering portion 92 in an embodiment to be described later). ) (For example, a sawtooth convex portion 43 and a convex portion 44 in an embodiment described later).

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the terminal is a fixing portion for fixing the core wire of the electric wire (for example, the first vertical portion 63, the second vertical portion in an embodiment described later). A plurality of vertical portions 65, first vertical portions 72, and second vertical portions 74) are provided.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the housing is at least one of the case and the cover when the terminal module is inserted into the housing. It is characterized by having a pressing part (for example, the upper wall part 18 and the partition wall part 19 in the Example mentioned later) which presses one side in the direction approaching the other.

  According to the first aspect of the present invention, since the electric wire is sandwiched between the case and the cover and the terminals having a plurality of poles are modularized to form the terminal module, the terminals can be arranged at a small pitch, and the terminal module can be downsized. can do. Further, since the terminal module is inserted into the housing to constitute the connector, the connector can be miniaturized.

  According to the invention of claim 2, by connecting the cover and the case, the convex portion of the cover press-contacts the core wire and the covering portion of the electric wire, so that the electric wire can be made difficult to come off from the terminal module, and a predetermined tension is applied. Strength can be secured.

  According to the invention which concerns on Claim 3, the core wire of an electric wire can be made harder to remove | deviate from a terminal module, and predetermined | prescribed tensile strength can be ensured.

  According to the fourth aspect of the present invention, when the terminal module is inserted into the housing, the case and the cover of the terminal module are pressed in a direction approaching each other, so that the pressure contact force between the case and the cover against the electric wire is further increased. Thus, the electric wire can be securely held, and as a result, the electric wire can be further prevented from being pulled out of the terminal module, and the tensile strength is further increased.

It is a horizontal sectional view of the female connector of Example 1 concerning this invention. 1 is an exploded view of a female connector in Embodiment 1. FIG. FIG. 1A is a cross-sectional view taken along the line AA. FIG. 3B is a cross-sectional view taken along the line B-B. FIG. 3C is a cross-sectional view taken along C-C. FIG. 3 is a plan view of the terminal module according to the first embodiment. It is a front view of the terminal module. It is an exploded view of the terminal module. 2 is a plan view of a terminal in Example 1. FIG. It is a front view of the terminal. It is a left view of the same terminal. It is a figure which shows the state before the connection of the female connector of Example 1 and a male connector. It is a figure which shows the connection state of the female connector of Example 1, and a male connector. FIG. 6 is a cross-sectional view corresponding to FIG. 3 of the female connector in Example 2. FIG. 14D is a sectional view taken along line D-D. It is a top view of the terminal in the said Example 2. FIG. It is a front view of the terminal. It is a left view of the same terminal. It is an expanded view of the electric wire fixing | fixed part of the terminal. FIG. 9 is a cross-sectional view corresponding to FIG. 3 of the female connector in Example 3. FIG. 20E is a sectional view taken along line E-E. It is a front view of the terminal in the said Example 3. It is an expanded view of the electric wire fixing | fixed part of the terminal. It is a figure which shows an example of the cross-sectional shape of the housing of a female connector. It is an end view of a housing which has a plurality of module insertion holes.

  Embodiments of a connector according to the present invention will be described below with reference to the drawings of FIGS. In addition, the following examples are aspects of a female connector. In the figure, arrow X indicates the width direction of the female connector 1, arrow Y indicates the front-rear direction, and arrow Z indicates the vertical direction (height direction).

<Example 1>
First, a first embodiment of a connector according to the present invention will be described with reference to the drawings of FIGS. 1 is a cross-sectional view of the female connector 1 cut horizontally, FIG. 2 is an exploded view thereof, FIG. 3 is a cross-sectional view of FIG. 1A-A, FIG. 4 is a cross-sectional view of FIG. It is.
The female connector 1 includes a resin housing 10 and a terminal module 20 inserted into the housing 10.

  The housing 10 has a substantially rectangular cylindrical shape, has a flange portion 11 at the front end, and a main body portion 12 extends rearward from the flange portion. The housing 10 has a module insertion hole (storage portion) 13 penetrating from the front end to the rear end, and an erroneous insertion prevention hole 14 that is widened outward in the width direction and has a short depth is connected to the lower portion of the front end of the module insertion hole 13. Yes. In addition, a pair of elastic arms 15 disposed opposite to each other in the width direction are provided at the rear end (back end) of the inner peripheral surface of the housing 10, in other words, at the rear end of the module insertion hole 13. Yes. An escape groove 15b is provided outside the elastic arm 15 in the housing 10 so that the elastic arm 15 can be elastically deformed outward. The elastic arm 15 protrudes slightly inward as it advances backward, and a locking protrusion (engagement protrusion) 15a protruding inward is provided at the rear end.

The terminal module 20 includes a resin case 21 and a resin cover 22, and a metal terminal 23 stored in the case 21. An electric wire 90 connected to the terminal 23 is connected to the case 21. The cover 22 is sandwiched and fixed.
6 is a plan view of the terminal module 20, FIG. 7 is a front view thereof, and FIG. 8 is an exploded view thereof.
The case 21 has a rectangular shape in a plan view and has a comb-like cross section. Between the bottom wall 24, the side wall 25 provided upright from both ends in the width direction of the bottom wall 24, and both side walls 25. A plurality of partition wall portions 26 that are arranged at intervals and are erected from the bottom wall portion 24 and provided in parallel with the side wall portions 25, and between the side wall portions 25 and the partition wall portions 26 and adjacent partitions. Between the wall portion 26 and the partition wall portion 26 is an independent terminal storage recess 27.

  The terminal storage recess 27 has a rectangular shape with an upper opening, and is formed over the entire length of the case 21 in the front-rear direction. A serrated convex portion 28 for pressing the resin coating portion 92 of the electric wire 90 is formed at the front end portion of each terminal storing concave portion 27 so as to protrude from the bottom surface of the terminal storing concave portion 27. As shown in FIG. 3, the sawtooth convex portion 28 is configured by a plurality of triangular teeth extending in the width direction and arranged in the front-rear direction.

Further, in each terminal storage concave portion 27, an engagement convex portion 29 that engages with the terminal 23 and makes the terminal 23 immovable is located at a portion spaced apart from the serrated convex portion 28 rearward by a bottom surface of the terminal storage concave portion 27. It is formed protruding from.
In the case 21, a front end lower portion of the both side wall portions 25 is provided with an erroneous insertion prevention convex portion 30 that protrudes outward in the width direction from the outer surface of the side wall portion 25 and has a small front-rear direction length and height. The erroneous insertion preventing protrusion 30 is fitted into the erroneous insertion preventing hole 14 of the housing 10 when the terminal module 20 is mounted on the housing 10.
On the outer surface of the rear end portion of the side wall portions 25 in the case 21, a locking hole (engaging hole) into which the locking projection 15 a of the elastic arm 15 of the housing 10 can be inserted when the terminal module 20 is mounted on the housing 10. 31 is provided.
In addition, engagement grooves 32 for the cover 22 are provided in the front and rear direction apart from each other on the outer surfaces of the side wall portions 25 of the case 21 and between the erroneous insertion prevention convex portion 30 and the engagement hole 31. . The engaging groove 32 is formed over the entire length of the case 21 in the up-down direction, and an engaging protrusion 33 projects from the center of the engaging groove 32.

  The cover 22 has a rectangular shape in plan view, and includes a top plate portion 40 that covers the upper portion of the case 21, and four connection arms 41 that extend downward from both widthwise ends of the top plate portion 40. The connecting arm 41 is provided at a position corresponding to the engaging groove 32 of the case 21, and is formed in a shape and size that can be inserted into the engaging groove 32 when the cover 22 is attached to the case 21. At the center of the connecting arm 41, an engagement hole 42 is provided in which the engagement protrusion 33 of the case 21 can be engaged when the cover 22 is attached to the case 21.

On the back surface of the top plate portion 40, a sawtooth convex portion (for pressing the coating portion 92 of the electric wire 90 to a portion facing the sawtooth convex portion 28 of the case 21 when the cover 22 is attached to the case 21. (Convex part) 43 protrudes downward. As shown in FIG. 3, the sawtooth convex portion 43 is configured by a plurality of triangular teeth extending in the width direction and arranged in the front-rear direction. The serrated convex portion 28 is provided so that it can be inserted into the terminal storage concave portion 27 of the case 21 when the cover 22 is attached to the case 21.
Further, a convex portion 44 for pressing the core wire 91 of the electric wire 90 is provided on the back surface of the top plate portion 40 at a portion facing each engaging convex portion 29 of the case 21 when the cover 22 is attached to the case 21. It protrudes downward. As shown in FIG. 5, a groove 45 that is recessed in the shape of a substantially V-shaped cross section is formed on the front end surface of the convex portion 44 over the entire length in the front-rear direction. The convex portion 44 is provided so that it can be inserted into the terminal storage concave portion 27 of the case 21 when the cover 22 is attached to the case 21.

Next, the terminal 23 stored in the terminal storage recess 27 of the case 21 will be described with reference to FIGS. 9 to 11. 9 is a plan view of the terminal 23, FIG. 10 is a front view thereof, and FIG. 11 is a left side view thereof.
The terminal 23 is formed of a metal having excellent conductivity, and the rear side is a connection part 50 connected to a male terminal 102 (see FIGS. 12 and 13) of the male connector 100 described later, and the front side is It is an electric wire fixing part 51.
Since the connecting portion 50 for the male connector 100 is not the gist of the present invention and is the same as a conventional general structure, the illustration and description of the internal structure are omitted, but the outer shape is generally a rectangular parallelepiped shape. It is stored in the rear side of the terminal storage recess 27 of the case 21 without any gap, and is configured to be substantially in contact with or close to the back surface of the top plate portion 40 of the cover 22 when the cover 22 is attached to the case 21. Yes.

The wire fixing portion 51 is connected to the flat neck portion 52 extending forward from the front end lower portion of the connection portion 50, the cradle 53 that is connected to the front end of the neck portion 52 and one step higher than the neck portion 52, and the front end of the cradle 53. It is composed of a tip 54 provided one step lower than the cradle 53 and wings 55 extending obliquely upward and outward from both widthwise ends of the cradle 53. The bottom surfaces of the neck portion 52 and the tip portion 54 are flush with the bottom surface of the connection portion 50, and a recess 56 is formed below the cradle 53.
As shown in FIG. 3, the terminal 23 is fitted to the case 21 and the cover 22 in a state where the concave portion 56 is fitted to the engaging convex portion 29 of the case 21 and the connecting portion 50 is stored in the rear portion of the terminal storing concave portion 27. Sandwiched.

Next, a procedure for connecting the electric wire 90 to the terminal module 20 will be described. First, the cover 22 is removed from the case 21 and the terminal 23 is set on the case 21. At that time, the engaging convex portion 29 of the case 21 is fitted into the concave portion 56 of the terminal 23, and the connecting portion 50 is stored in the rear portion of the terminal storing concave portion 27. By fitting the engaging convex portion 29 into the concave portion 56, the terminal 23 is prevented from moving in the front-rear direction with respect to the case 21.
Next, the core 91 that has been previously stripped and stripped of the covering portion 92 at the tip end of the electric wire 90 is placed on the receiving base 53 of the terminal 23, and the covering portion 92 of the electric wire 90 is moved to the sawtooth convex shape of the case 21. Place on the part 28.
Next, as shown in FIG. 8, the cover 22 is stacked on the case 21, and the connecting arm 41 of the cover 22 is inserted into the engagement groove 32 of the case 21. Then, the connecting arm 41 is elastically deformed to get over the engaging protrusion 33 of the case 21, and the engaging protrusion 33 is engaged with the engaging hole 42 of the connecting arm 41. Thereby, the case 21 and the cover 22 are integrated, and the terminal module 20 is assembled.

In the mounting process of the cover 22, the serrated convex portion 43 of the cover 22 rides on the covering portion 92 of the electric wire 90 placed on the serrated convex portion 28 of the case 21, and The covering portion 92 is pressed by elasticity. As a result, the covering portion 92 of the electric wire 90 is pressed into contact with the sawtooth convex portion 28 of the case 21 and the sawtooth convex portion 43 of the cover 22 from above and below, and the tips of the sawtooth convex portions 28 and 43 are in contact with the covering portion 92. It bites in and is firmly held by the serrated convex portions 28 and 43.
At the same time, the convex portion 44 of the cover 22 rides on the core wire 91 of the electric wire 90 placed on the cradle 53 of the terminal 23 and presses the core wire 91 by the elasticity of the top plate portion 40. As a result, the core wire 91 of the electric wire 90 is pressed into contact with the convex portion 44 of the cover 22 and the receiving base 53 of the terminal 23 from above and below, and the core wire 91 and the terminal 23 are electrically connected. Further, the core wire 91 is firmly held between the convex portion 44 and the cradle 53. The wing portion 55 of the terminal 23 and the groove 45 of the convex portion 44 prevent the core wire 91 from being detached from between the convex portion 44 and the cradle 53.

Thus, the terminal module 20 in which the electric wire 90 is connected to the terminal 23 is inserted into the housing 10 to assemble the female connector 1.
Specifically, as shown in FIG. 2, the terminal module 20 is inserted from the flange portion 11 side of the housing 10 with the terminal 23 side being disposed forward. At this time, the vertical direction of the terminal module 20 and the housing 10 is matched so that the erroneous insertion prevention convex part 30 of the terminal module 20 and the erroneous insertion prevention hole 14 of the housing 10 are on the same side. If the vertical direction of the terminal module 20 and the housing 10 is reversed, the erroneous insertion prevention convex portion 30 cannot be fitted into the erroneous insertion prevention hole 14, and thus erroneous insertion can be prevented.

When the vertical direction of the terminal module 20 and the housing 10 is coincident, when the terminal module 20 is inserted into the module insertion hole 13 of the housing 10, the erroneous insertion prevention convex portion 30 is near the terminal end. Enter 14
Further, when the terminal module 20 is pushed in, the front end surface of the terminal module 20 abuts against the locking projection 15 a of the elastic arm 15 of the housing 10. Further, when the terminal module 20 is pushed in, the elastic arm 15 is elastically deformed outward, so that the locking projection 15a rides on the side surface of the terminal module 20, and the terminal module 20 can be pushed further back. Then, when the locking projection 15a reaches the locking hole 31 of the terminal module 20, the elastic arm 15 is elastically restored inward, and the locking projection 15a is locked to the locking hole 31 as shown in FIG. The At this time, the entirety of the erroneous insertion prevention convex portion 30 is fitted into the erroneous insertion prevention hole 14.

According to the female connector 1, in the terminal module 20, the core wire 91 of the electric wire 90 is firmly sandwiched between the convex portion 44 and the receiving base 53, and the covering portion 92 is firmly sandwiched between the saw-tooth convex portions 28 and 43. Therefore, it becomes difficult for the electric wire 90 to come off from the terminal module 20, and a predetermined tensile strength can be ensured.
Further, unlike the conventional connector, the terminal module 20 is not fixed to the housing using a lance for each terminal, the electric wire 90 is sandwiched between the case 21 and the cover 22, and the multi-pole terminal 23 is modularized to form the terminal module 20. The terminals 23 can be arranged at a small pitch, and the terminal module 20 can be miniaturized. Furthermore, since the female connector 1 is configured by incorporating the terminal module 20 into the housing 10, the female connector 1 can be reduced in size.

  The female connector 1 is used by being connected to a male connector 100 as shown in FIG. FIG. 12 shows a state before connection between the female connector 1 and the male connector 100 before connection. A male terminal 102 protrudes from the back end of the connector insertion hole 101 of the male connector 100, and when the female connector 1 is inserted into the connector insertion hole 101 of the male connector 100, the male terminal 102 is connected to the corresponding terminal 23 in the female connector 1. Connected to the connection unit 50.

<Example 2>
Next, a second embodiment of the connector according to the present invention will be described with reference to the drawings of FIGS.
The basic configuration of the female connector 1 of the second embodiment is the same as that of the first embodiment. In the following description, the same components are denoted by the same reference numerals and the description thereof is omitted. The difference will be mainly described.
14 is a cross-sectional view corresponding to FIG. 3, and FIG. In the female connector 1 of the second embodiment, the shape of the wire fixing portion 51 of the terminal 23, the engaging convex portion 29 of the case 21, the convex portion 44 of the cover 22, and the like are different from those of the first embodiment.

The electric wire fixing portion 51 of the terminal 23 will be described with reference to FIGS. 16 to 19. 16 is a plan view of the terminal 23 of the second embodiment, FIG. 17 is a front view thereof, FIG. 18 is a left side view thereof, and FIG. 19 is a development view of the wire fixing portion 51.
The electric wire fixing portion 51 includes a flat plate-like neck portion 61 that extends forward from the front end lower portion of the connection portion 50, a support portion 62 that is formed on the same plane on the front extension of the neck portion 61, and rises upward from the front end of the support portion 62. A first vertical portion (fixed portion) 63 extending inward, a horizontal portion 64 bent 90 degrees from the upper end of the first vertical portion 63 and folded back to the connection portion 50 side, and bent downward 90 degrees from the rear end of the horizontal portion 64 And a second vertical portion (fixed portion) 65 whose tip is substantially in contact with the support portion 62.
The support portion 62 is provided with a rectangular through hole 66, the first vertical portion 63 and the second vertical portion 65 are provided with U-shaped grooves 67 and 68, and the horizontal portion 64 is a rectangle continuous with the grooves 67 and 68. The through hole 69 is provided, and the through hole 69 overlaps the through hole 66 in plan view.
The wire fixing portion 51 can be formed by bending a plate-like body 60 as shown in the developed view of FIG. 19 inward by 90 degrees at positions indicated by alternate long and short dash lines a, b, and c in the drawing.

The engaging convex portion 29 of the case 21 is provided so as to be able to fit into a through hole 66 provided in the support portion 62 of the electric wire fixing portion 51, and the upper surface of the engaging convex portion 29 is the first of the electric wire fixing portion 51. The height is set to be the same height as or slightly lower than the lowest point of the grooves 67 and 68 of the vertical part 63 and the second vertical part 65. The engaging projection 29 is fitted into the through hole 66 of the terminal 23 when the terminal 23 is attached to the case 21, and prevents the terminal 23 from moving in the front-rear direction with respect to the case 21.
The convex portion 44 of the cover 22 is provided so as to be able to penetrate the grooves 67 and 68 of the first vertical portion 63 and the second vertical portion 65 of the electric wire fixing portion 51 in the front-rear direction when the cover 22 is attached to the case 21. , And is disposed so as to face the engaging convex portion 29. Moreover, the front end surface of the convex part 44 is formed flat, and there is no groove | channel 45 in Example 1. FIG.

In the female connector 1 of the second embodiment, the core wire 91 of the electric wire 90 is disposed so as to pass through the grooves 67 and 68 of the first vertical portion 63 and the second vertical portion 65 of the terminal 23. It is placed on the lowest point and the engaging projection 29 of the case 21.
In the process of attaching the cover 22 to the case 21, the convex portion 44 of the cover 22 descends so as to straddle over the grooves 67 and 68 of the first vertical portion 63 and the second vertical portion 65 of the terminal 23, It rides on the core wire 91 of the electric wire 90 placed on the grooves 67 and 68 and presses the core wire 91 by the elasticity of the top plate portion 40. As a result, the core wire 91 of the electric wire 90 is pressed from above and below the convex portion 44 of the cover 22 and the inner surface of the groove 67 of the first vertical portion 63 and the inner surface of the groove 68 of the second vertical portion 65 of the terminal 23. And the terminal 23 are electrically connected. Moreover, since the core wire 91 is firmly clamped at two places by the convex portion 44 and the first vertical portion 63 and by the convex portion 44 and the second vertical portion 65, it is difficult to remove the core wire 91 from the terminal module 20. Can do. That is, it is possible to make it difficult for the electric wire 90 to be removed from the terminal module 20, and to ensure a predetermined tensile strength.
Although not described, the covering portion 92 of the electric wire 90 is firmly clamped from above and below by the serrated convex portion 28 of the case 21 and the serrated convex portion 43 of the cover 22 as in the first embodiment. It is.

<Example 3>
Next, a third embodiment of the connector according to the present invention will be described with reference to the drawings of FIGS.
The basic configuration of the female connector 1 of the third embodiment is the same as that of the second embodiment. In the following description, the same components are denoted by the same reference numerals and the description thereof is omitted. The difference will be mainly described.
20 is a cross-sectional view corresponding to FIG. 3, and FIG. 21 is a cross-sectional view of FIGS. 20E-E. In the female connector 1 of the third embodiment, the shape and the like of the electric wire fixing portion 51 of the terminal 23 and the engagement convex portion 29 of the case 21 are different from those of the second embodiment.

The wire fixing portion 51 of the terminal 23 will be described with reference to FIGS. 22 and 23. FIG. 22 is a front view of the terminal 23 according to the third embodiment, and FIG. 23 is a development view of the wire fixing portion 51.
The wire fixing portion 51 includes a flat plate-like neck portion 71 that extends forward from the front end lower portion of the connection portion 50, a first vertical portion (fixing portion) 72 that stands up from the front end of the neck portion 71 and extends upward, and a first vertical portion 72 A horizontal portion 73 that bends 90 degrees from the upper end and extends in a direction away from the connection portion 50, and a second vertical that bends 90 degrees from the front end of the horizontal portion 73 and extends downward, with the tip at the same level as the bottom surface of the neck portion 71. Part (fixed part) 74.
The first vertical portion 72 and the second vertical portion 74 are provided with U-shaped grooves 75 and 76, and the horizontal portion 73 is provided with a rectangular through-hole 77 that is continuous with the grooves 75 and 76. Note that the wire fixing portion 51 can be formed by bending a plate-like body 70 as shown in the development view of FIG. 23 by 90 degrees at positions indicated by alternate long and short dash lines d and e in the drawing.

The engagement convex part 29 of the case 21 is provided between the first vertical part 72 and the second vertical part 74 of the electric wire fixing part 51 so as to be fitted. Further, in the third embodiment, the second engaging convex portion 34 protrudes upward at a position slightly separated from the engaging convex portion 29 in the bottom wall portion 24 of the case 21. The lower end portion of the second vertical portion 74 of the terminal 23 can be inserted between the second engaging convex portion 34 and the second engaging convex portion 34. Further, the upper surfaces of the engaging convex portion 29 and the second engaging convex portion 34 are the same height as the lowest points of the grooves 75 and 76 of the first vertical portion 72 and the second vertical portion 74 of the electric wire fixing portion 51 or the same. The height is set so as to be slightly lower. In Example 3, when the terminal 23 is mounted on the case 21, the lower end portion of the second vertical portion 74 of the terminal 23 is inserted between the engaging convex portion 29 and the second engaging convex portion 34. The terminal 23 is prevented from moving in the front-rear direction with respect to the case 21.
Similarly to the second embodiment, the convex portion 44 of the cover 22 causes the first vertical portion 72 of the wire fixing portion 51 and the grooves 75 and 76 of the second vertical portion 74 to extend in the front-rear direction when the cover 22 is attached to the case 21. It is provided so as to be able to penetrate, and is disposed so as to face the engaging convex portion 29 and the second engaging convex portion 34. Further, like the second embodiment, the front end surface of the convex portion 44 is formed flat.

In the female connector 1 of the third embodiment, the core wire 91 of the electric wire 90 is disposed through the first vertical portion 72 of the terminal 23 and the grooves 75 and 76 of the second vertical portion 74 as in the second embodiment. It is placed on the lowest point of the inner surfaces of the grooves 75 and 76 and on the engaging convex portion 29 and the second engaging convex portion 34 of the case 21.
Then, in the process of attaching the cover 22 to the case 21, the convex portion 44 of the cover 22 descends so as to straddle over the grooves 75 and 76 of the first vertical portion 72 and the second vertical portion 74 of the terminal 23, It rides on the core wire 91 of the electric wire 90 placed on the grooves 75 and 76 and presses the core wire 91 by the elasticity of the top plate portion 40. As a result, the core wire 91 of the electric wire 90 is pressed from above and below the convex portion 44 of the cover 22 and the inner surface of the groove 75 of the first vertical portion 72 of the terminal 23 and the inner surface of the groove 76 of the second vertical portion 74. And the terminal 23 are electrically connected. Moreover, since the core wire 91 is firmly clamped at two places by the convex portion 44 and the first vertical portion 72 and by the convex portion 44 and the second vertical portion 74, it is difficult to remove the core wire 91 from the terminal module 20. Can do. That is, it is possible to make it difficult for the electric wire 90 to be removed from the terminal module 20 and to secure a predetermined tensile strength.
Although not described, the covering portion 92 of the electric wire 90 is firmly clamped from above and below by the serrated convex portion 28 of the case 21 and the serrated convex portion 43 of the cover 22 as in the first embodiment. It is.

  By the way, each of the female connectors 1 according to the first to third embodiments basically includes a resin case 21 in which a plurality of terminals 23 are stored and a resin cover 22 coupled to the case 21. The electric wire 90 connected every time is clamped from both sides thereof, whereby the core wire 91 is connected to the terminal 23 to form the terminal module 20, and this terminal module 20 is inserted into the module insertion hole 13 of the housing 10. Therefore, as shown in FIG. 24, the terminal module 20 before being inserted into the housing 10 is slightly outward as the cover 22 holding the electric wire 90 is elastically deformed at the portion where the electric wire 90 is sandwiched. Inflates. In other words, the electric wire 90 is pressed by the elastic force of the cover 22 trying to return to the state before the deformation.

  Here, when the terminal module 20 is inserted into the housing 10, if the cover 22 is pressed in the direction approaching the case 21 with the housing 10, the pressure contact force between the case 21 and the cover 22 against the electric wire 90 increases, and the electric wire 90 Can be further prevented from coming out of the terminal module 20. FIG. 24 shows a cross-sectional shape of the housing 10 suitable for this. This will be described in detail.

  In the housing 10, the bottom surface 13 a of the module insertion hole 13 is lower than the bottom surface 14 a of the erroneous insertion prevention hole 14, and a predetermined space is provided between the bottom wall portion 17 of the housing 10 and the bottom wall portion 24 of the case 21 of the terminal module 20. The gap space 16 is formed. The bottom surface 13a of the module insertion hole 13 is formed as a convex curved surface that bulges upward.

  The upper surface 13 b of the module insertion hole 13 is formed as a concave curved surface that descends from the center in the width direction toward both ends, and the curvature radius thereof is the cover 22 in the terminal module 20 that sandwiches the electric wire 90. The radius is set to be larger than the radius of curvature of the curved surface formed by elastic deformation of the top plate portion 40. Furthermore, the height in the center in the width direction of the upper surface 13b of the module insertion hole 13 is slightly lower than the maximum bulging portion of the curved surface formed by elastic deformation of the top plate portion 40 (that is, near the center in the width direction). Is set to

  When inserting the terminal module 20 into the module insertion hole 13 of the housing 10 formed in this way, the erroneous insertion prevention convex part 30 of the terminal module 20 is pushed down while the top plate part 40 of the cover 22 in the terminal module 20 is pushed downward. When fitted into the erroneous insertion prevention hole 14 of the housing 10, the top plate portion 40 of the cover 22 of the terminal module 20 is pressed against the upper wall portion (pressing portion) 18 of the housing 10 by its elasticity, and the upper wall portion 18 is elastically deformed. To do. When the upper wall portion 18 of the housing 10 is elastically deformed, the upper wall portion 18 presses the top plate portion 40 of the cover 22 by the elastic force, so that the pressure contact force between the case 21 and the cover 22 with respect to the electric wire 90 increases. Becomes more difficult to remove from the terminal module 20, and the tensile strength increases.

FIG. 25 is an end view of the housing 10 used for the female connector 1 in which a plurality of terminal modules 20 are mounted on the housing 10.
In the housing 10, a plurality of module insertion holes 13 are arranged in parallel, and one surface of a partition wall portion (pressing portion) 19 provided between the module insertion hole 13 and the module insertion hole 13 is a module insertion hole. 13 is a convex curved bottom surface 13 a, and the other surface is a concave curved top surface 13 b of the module insertion hole 13. In this case, the elastic deformation of the partition wall portion 19 can be absorbed by the gap space 16 between the bottom surface 13 a of the module insertion hole 13 and the bottom wall portion 24 of the case 21 of the terminal module 20.

[Other Examples]
The present invention is not limited to the embodiment described above.
For example, in the above-described embodiment, the engagement hole is provided in the terminal module case, but the engagement hole may be provided in the cover. In the above-described embodiment, the terminal module is provided with the engagement hole and the housing is provided with the engagement protrusion. However, the terminal module is provided with the engagement protrusion and the housing is provided with the engagement hole. Also good.

1 Female connector (connector)
10 Housing 13 Module insertion hole (storage part)
15a Locking protrusion (engaging protrusion)
18 Upper wall (pressing part)
19 Partition wall (pressing part)
20 Terminal module 21 Case 22 Cover 23 Terminal 31 Locking hole (engagement hole)
43 Serrated convex part (convex part)
44 convex portion 63 first vertical portion (fixed portion)
65 Second vertical part (fixed part)
72 First vertical portion (fixed portion)
74 Second vertical portion (fixed portion)
90 Electric wire 91 Core wire 92 Covering part

Claims (4)

A terminal module formed by holding a wire connected to each terminal by a resin case storing a plurality of terminals and a resin cover coupled to the case;
A housing having a storage portion into which the terminal module is inserted,
The outer peripheral surface of the case or the cover of the terminal module and the inner peripheral surface of the storage portion of the housing are provided with engagement holes and engagement protrusions that can be engaged and disengaged with each other. connector.   The connector according to claim 1, wherein the cover has a convex portion that press-contacts the core wire and the covering portion of the electric wire.   The connector according to claim 1, wherein the terminal includes a plurality of fixing portions that fix the core wire of the electric wire.   The said housing is provided with the press part which presses at least any one of the said case and the said cover in the direction approaching the other when the said terminal module is inserted in the said housing. The connector according to any one of the above.

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