JP2015090846A - Connector and connector housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a distance (pitch) between mutually adjacent cavities, in a connector including a housing having a plurality of cavities and a plurality of terminals installed by insertion into the respective cavities of the housing.SOLUTION: A connector 1 includes: a housing 3 having a plurality of cavities 7; a plurality of terminals 5 installed on the housing 3 by insertion into the respective cavities 7 of the housing 3; and one lance 9 for engaging the plurality of terminals 5 installed on the housing 3.

Description

  The present invention relates to a connector and a connector housing, and more particularly to a connector in which a plurality of terminals are installed in one housing.

  Conventionally, a connector 301 as shown in FIGS. 11 to 16 is known (see, for example, Patent Document 1).

  The connector 301 has a terminal fitting (terminal) 307 inserted into the cavity 305 in the housing 303 and a shape along the inner wall of the cavity 305, and is elastically bent in a direction intersecting the insertion direction of the terminal fitting 307 with respect to the cavity 305. The lance 309 is formed so as to be possible.

  Then, the terminal fitting 307 inserted into the cavity 305 is held in a retaining state by the locking action of the lance 309.

  In the connector 301, a plurality of cavities 305 are provided in the housing 303, and a lance 309 is formed for each pole. That is, a lance 309 is provided in each of the plurality of cavities 305 (one lance 309 is provided for one cavity 305).

  Each of the plurality of terminals 307 is inserted and installed in each of the cavities 305, and each of the installed terminals 307 is prevented from being detached by each of the lances 309.

JP 2011-18565 A

  By the way, in the conventional connector 301, since the lance 309 provided in the cavity 305 needs to be cantilevered and the terminal 307 is inserted into the cavity 305, the terminal 307 needs to be bent to be bent. As shown in FIG. 11A and FIG. 11B, it is necessary to form a gap 313 between the side wall 311 of the cavity 305 and the lance 309.

  This gap 313 increases the distance (pitch) PA (see FIGS. 8A and 15A) between the cavities 305 adjacent to each other.

  The present invention has been made in view of the above problems, and is configured to include a housing provided with a plurality of cavities and a plurality of terminals inserted and installed in the cavities of the housing. An object of the present invention is to provide a connector capable of reducing the distance (pitch) between cavities adjacent to each other.

  The invention according to claim 1 is a housing provided with a plurality of cavities, a plurality of terminals inserted into each of the cavities of the housing and installed in the housing, and one provided in the housing. And a lance for locking a plurality of terminals installed in the housing.

  The invention according to claim 2 is the connector according to claim 1, wherein the plurality of terminals locked by the one lance are integrated.

  According to a third aspect of the present invention, in the connector according to the second aspect, the plurality of terminals locked by the one lance seals a connection portion between these terminals and the electric wire. It is the connector integrated by.

  The invention according to claim 4 is a connector housing having a plurality of cavities into which each of a plurality of terminals is inserted, and a lance that locks the plurality of terminals inserted into each of the cavities. is there.

  According to the present invention, in a connector configured to include a housing provided with a plurality of cavities and a plurality of terminals inserted and installed in the cavities of the housing, the cavities adjacent to each other There is an effect that it is possible to provide a connector capable of reducing the distance (pitch) therebetween.

It is a perspective view showing a schematic structure of a connector concerning an embodiment of the present invention. It is a perspective view showing a schematic structure of a connector concerning an embodiment of the present invention, and is a figure showing a state where a terminal is separated from a housing, and is a figure which made a part a section. It is a figure which shows the state in the middle of moving a terminal from the state shown in FIG. 2, and installing a terminal in a housing. In the state shown in FIG. 3, it is the perspective view which abbreviate | omitted display of the terminal and looked at the housing from another angle, and is the figure which made one part a cross section. It is a figure which shows the state which moved the terminal further from the state shown in FIG. 3, and finished installing the terminal in the housing. In the state shown in FIG. 5, it is the perspective view which abbreviate | omitted display of the terminal and saw the housing from another angle, Comprising: It is the figure which made the cross section partially. It is a perspective view which shows schematic structure of the terminal of the connector which concerns on embodiment of this invention. It is the figure seen from the front-back direction while showing typically the housing of a connector, (a) has shown the housing of the conventional connector, (b) has shown the housing of the connector which concerns on embodiment of this invention. Yes. 8A is a sectional view taken along the line IXA-IXA in FIG. 8A, FIG. 8B is a sectional view taken along the line IXB-IXB in FIG. 8A, and FIG. 8C is a sectional view taken along the line IXC-IXC in FIG. FIG. (A) is XA-XA sectional drawing in FIG.8 (b), (b) is XB-XB sectional drawing in FIG.8 (b), (c) is XC-XC sectional drawing in FIG.8 (b). It is a figure and (d) is XD-XD sectional drawing in FIG.8 (b). It is a figure which shows the conventional connector. It is a figure which shows the conventional connector. It is a figure which shows the conventional connector. It is a figure which shows the conventional connector. It is a figure which shows the conventional connector. It is a figure which shows the conventional connector.

  As shown in FIGS. 1 to 7, the connector 1 according to the embodiment of the present invention includes a housing 3 and a plurality of terminals (for example, female terminals) 5.

  The housing 3 is provided with a plurality of cavities (terminal accommodating portions) 7. The cavities 7 are adjacent to each other in the lateral direction. In this specification, for convenience of explanation, a predetermined direction is a front-rear direction, a predetermined direction orthogonal to the front-rear direction is a horizontal direction, and a direction orthogonal to the front-rear direction and the horizontal direction Is the vertical direction.

  Each of the terminals 5 is inserted and accommodated in each of the cavities 7 of the housing 3 and is installed in the housing 3.

  The housing 3 is provided with a lance 9. The lance 9 constitutes a part of the housing 3. One lance 9 is configured to lock a plurality of terminals 5 installed in the housing 3 and prevent the terminals 5 from coming off.

  Further, the plurality of terminals 5 that are locked by the single lance 9 are integrated even if they are separated from the housing 3 (even before being installed in the housing 3). Of course, it is integrated after it is installed in the housing 3 and locked by one lance 9. That is, the plurality of terminals 5 are always integrated.

  The plurality of terminals 5 are integrated by a seal member 13 that covers and seals connection portions (wire connection portions) between the terminals 5 and the electric wires 11 connected to the terminals 5.

  Here, the connector 1 will be described in more detail.

  The terminal 5 includes a mating terminal connecting portion (for example, a box-shaped portion) 14 to which a mating terminal (for example, a male terminal) is connected, a connecting portion 15, a wire barrel portion (core caulking holding portion) 17, and an insulation barrel portion (sheath caulking). Holding part) 19. The mating terminal connecting portion 14, the connecting portion 15, the wire barrel portion 17, and the insulation barrel portion 19 are connected in this order from the front side to the rear side in the front-rear direction.

  The terminal 5 is inserted in the front-rear direction when the terminal 5 is installed in the cavity 7 provided in the housing 3.

  The electric wire 11 includes a core wire 23 and a sheath (insulating covering) 25 that covers the core wire 23. The sheath 25 is removed at one end portion in the longitudinal direction of the electric wire 11 (front end portion in the front-rear direction), and the core wire 23 is exposed.

  At least a part of the exposed core wire 23 is surrounded and held by the wire barrel portion 17, and a portion of the sheath 25 in the vicinity of the exposed core wire 23 is surrounded by the insulation barrel portion 19. Is retained. Thereby, the terminal 5 is installed in the electric wire 11 (the electric wire 11 is installed in the terminal 5).

  The seal member (seal body) 13 covers the wire 11, the insulation barrel 19, and a part of the wire 11 from the wire barrel 17 to the portion of the wire 11 near the insulation barrel 19. And the terminal 5 are provided in close contact with each other, for example, by a mold.

  In the electric wire with terminal (electric wire holding terminal) 27 holding the core wire 23 of the electric wire 11 with the wire barrel portion 17 and holding the sheath 25 of the electric wire 11 with the insulation barrel portion 19, the opposite side of the mating terminal connecting portion 14. The electric wire 11 extends rearward from the rear side of the terminal 5.

  As shown in FIG. 7 and the like, the seal member 13 is provided integrally with, for example, two electric wires 27 with terminals, and the two electric wires 27 with terminals are integrated by the seal member 13. Here, the sealing member 13 and the two electric wires with terminals 27 provided with and integrated with the sealing member 13 are referred to as the electric wires with terminals (terminal assemblies) 29 with the sealing members installed. In the terminal combined body 29, the two electric wires 27 with terminals are aligned in the lateral direction.

  The terminal coupling body 29 is inserted into the two cavities 7 of the housing 3 with the wire barrel portion 17, the insulation barrel portion 19, and the electric wire 11 behind the mating terminal connection portion 14 of each terminal-attached electric wire 27. When the electric wire with terminal 29 with the seal member installed is installed in the housing 3, the outer periphery of the seal member 13 comes into contact with a predetermined portion of the inner periphery of the cavity 7 of the housing 3, and the contact between the housing 3 and the seal member 13 It is comprised so that this may be made.

  The housing 3 is provided with the lance 9 as described above. One lance 9 engages with the seal member installed terminal-attached electric wires 29 (each of the two terminal-attached electric wires 27) accommodated in each of the two cavities 7, so that the seal member installed terminal-attached electric wires 29 are disconnected. It stops (moves backward of the electric wire 29 with the terminal with the seal member installed) (see FIG. 5).

  The lance 9 is formed in a cantilever shape and extends in the front-rear direction. The base end 33 of the lance 9 is in the insertion direction (front-rear direction) of the electric wire 29 with a seal member-installed terminal and is separated from the electric wire 29 with the terminal with the seal member installed accommodated in the cavity 7. Located on the front side.

  The distal end 35 of the lance 9 is located on the rear side of the proximal end 33 in the insertion direction (front-rear direction) of the electric wire 29 with the seal member-installed terminal 29. A locking portion 37 is provided at the front end portion (rear end portion) of the lance 9.

  And the latching part 37 engages with the other party terminal connection part 14 of the electric wire 29 with the sealing member installation terminal accommodated in the cavity 7, It is comprised so that the removal of the terminal 5 mentioned above may be made. Yes.

  As shown in FIGS. 4, 6, and 8 (b), one lance 9 is provided with two locking portions 37, and the two locking portions 37 are separated from each other in the lateral direction. ing. In a state where the wire 29 with the terminal with the seal member installed is housed in the cavity 7 and is prevented from being pulled out by the lance 9, there are two engagements with each of the two mating terminal connection portions 14 of the wire 29 with the seal member installed terminal. Each of the stop portions 37 is engaged so that the terminal assembly 29 described above is prevented from coming off. Moreover, the front-end | tip (rear end) 35 of the lance 9 and the sealing member 13 are slightly separated in the front-back direction.

  The seal member 13 has a front end located in the front and rear direction, for example, at a front end (may be an intermediate portion) of the wire barrel portion 17, and a rear end of the sheath 25 slightly behind the insulation barrel portion 19. Located at the place. In a state in which the terminal-installed terminal-attached electric wire 29 is housed in the cavity 7 and is prevented from being pulled out by the lance 9, the seal-member-installed terminal-equipped electric wire 29 is positioned on the most front side with respect to the housing 3. The rear end and the front end of the seal member 13 are slightly separated.

  The terminal 5 is generated by forming a plate-like material made of a conductive material such as metal into a predetermined shape and appropriately bending the formed material. The mating terminal connecting portion 14 has a rectangular tube shape, and an elastic piece 41 is provided inside the rectangular tube. Further, a notch 43 with which the locking portion 37 of the lance 9 is engaged is provided in one of the four side wall portions of the counterpart terminal connecting portion 14.

  The wire barrel portion 17 in one terminal 5 is formed in a pair, and in the electric wire 27 with a terminal, the wire barrel portion 17 surrounds the exposed core wire 23 from which the sheath 25 is removed. The insulation barrel portion 19 in one terminal 5 is also formed as a pair, and in the electric wire 27 with a terminal, the insulation barrel portion 19 is slightly behind the front end of the sheath 25 and the sheath 25 of the electric wire 11. It covers almost the entire circumference.

  The housing 3 is integrally formed of an insulating material such as synthetic resin. The cavity 7 is formed to be recessed from the rear end of the housing 3 to the front side, and includes a front side portion 45 and a rear side portion 47.

  The front portion 45 is formed in a rectangular column shape that is substantially the same as the outer shape of the mating terminal connection portion 14 of the terminal 5, and for example, two are formed in accordance with the number of terminals 5 in the terminal combination 29. Thereby, it can be considered that the housing 3 is provided with two cavities.

  The rear part 47 is formed in a columnar shape having an oval bottom. One central axis of the front part 45 and the central axis of the rear part 47 (the central axis of one of the ellipses) coincide with each other, and the other central axis of the front part 45 and the rear part 47 The central axis (the central axis of the other ellipse) coincides with each other. The inner diameter of the circle forming the oval rear portion 47 is larger than the outer diameter of the square columnar front portion 45 (for example, the length of the diagonal diagonal line of the bottom surface of the square column).

  The lance 9 is provided over the two front side portions 45. In the front-rear direction, the position of the front end (rear end) of the lance 9 and the position of the rear end of the front side portion 45 are substantially coincident with each other. Yes. A through hole 49 is formed between the front end of the front portion 45 (the bottom of the cavity 7) and the front end of the housing 3.

  More specifically, as shown in FIG. 8B, the front portion 45 is surrounded by a pair of vertical partition walls 73 and a pair of horizontal partition walls 75, and is partitioned by a partition wall 71. It has become two by being done.

  One lance 9 is formed at one partition wall 73 of the pair of partition walls 73 in the vertical direction. Cutouts 77 are formed at both lateral ends and front end portions of one partition wall 73, thereby generating a cantilever-shaped lance 9. When viewed from the vertical direction, the notch 77 is formed in a “U” shape.

  As described above, the two locking portions 37 are formed at the tip of one lance 9, and the two locking portions 37 have a notch 79 at the center in the lateral direction. The direction is approximately the same as the thickness of the partition wall 71. A configuration in which the notch 79 is deleted may be used. A notch 81 for avoiding interference with the lance 9 is provided in the partition wall 71. The notch 81 is provided at the end of the partition wall 71 (end on the lance 9 side) in the vertical direction.

  The housing 3 is provided with a cylindrical recess 51. The recess 51 is formed to be recessed from the front end of the housing 3 to the rear side. By providing the concave portion 51, a convex portion 53 is formed in the housing 3, and the two cavities 7 (front side portions 45) and the lance 9 are located inside the convex portion 53. An annular packing 55 is installed on the outer periphery of the convex portion 53. An elastic arm 59 is provided outside the cylindrical recess 51.

  When a mating connector (not shown) in which terminals (for example, two male terminals) are installed is installed in the housing 3 (connector 1) in which the terminal-attached electric wire 29 with a seal member installed is installed, the mating connector is It is configured to enter the recess 51 and engage the packing 55 and the elastic arm 59 to seal between the connector 1 and the mating connector and to prevent the mating connector from coming off the connector 1. ing.

  Further, when the mating connector on which the two terminals are installed is installed on the connector 1, each of the terminals of the mating connector passes through each of the through holes 49 of the housing 3, and the mating terminal of each of the two terminals 5. Each of the terminals of the mating connector is connected to each of the terminals 5 by entering the connecting portion 14.

  The seal member 13 is integrally formed of an insulating material (including rubber) such as synthetic resin. However, the elastic coefficient of the seal member 13 is smaller than the elastic coefficient of the housing 3, and the seal member 13 is more easily elastically deformed than the housing 3.

  The seal member 13 is formed in, for example, a long cylindrical shape that is substantially the same as that of the rear portion 47, and each of the center axis (the center axis of two circles) of the seal member 13 and the center axis of the two electric wires 11. Each is consistent with each other. More specifically, in the seal member 13, the large diameter portion 61 and the small diameter portion 63 are alternately repeated in the front-rear direction (the extending direction of the central axis of the column).

  The outer diameter of the large diameter portion 61 is slightly larger than the inner diameter of the rear portion 47 of the cavity 7, and the outer diameter of the small diameter portion 63 is slightly smaller than the inner diameter of the rear portion 47 of the cavity 7. ing.

  When the installation of the electric wire with terminal 29 with the seal member installed in the housing 3 is finished, the large diameter portion 61 is crushed by being pressed by the inner wall of the rear portion 47, and the electric wire with terminal 29 with the seal member installed and the housing 3. The seal between is made.

  Here, manufacture of the electric wire 29 with the terminal with the sealing member installed will be described. First, the sheath 25 of the electric wire 11 is removed as appropriate, and the core wire 23 is exposed at one end. Subsequently, the terminal 5 is installed on the electric wire 11. Thereby, the electric wire 27 with a terminal is produced | generated. A plurality (for example, two) of the electric wires 27 with terminals are generated.

  Subsequently, a plurality of (for example, two) electric wires 27 with terminals are arranged in the horizontal direction, and the sealing member 13 is brought into close contact with the terminals 5 and the electric wires 11 of the electric wires 27 with two terminals by, for example, molding. Install in. As a result, the terminal combination 29 is generated.

  Next, the installation of the terminal-attached electric wire 29 with terminal on the housing 3 will be described.

  As an initial state, as shown in FIG. 2, it is assumed that the terminal-attached electric wire 29 with a seal member is separated from the housing 3 behind the housing 3. At this time, the wire 29 with the terminal with the sealing member installed is such that the mating terminal connecting portion 14 is on the front side and the wire 11 is on the rear side, and the position of the two cavities 7 in the horizontal direction and the vertical direction, The positions of the two terminals 5 of the electric wire 29 with the seal member-installed terminal coincide with each other.

  In the initial state, when the electric wire 29 with the terminal having the seal member installed is moved forward with respect to the housing 3, the terminal 5 enters the cavity 7, and the tip of the terminal 5 comes into contact with the inclined surface 65 of the tip of the lance 9. Is elastically deformed and bent, and the seal member 13 starts to enter the rear portion 47 of the cavity 7 (see FIGS. 3 and 4).

  When the electric wire with terminal 29 with the seal member installed is moved further forward, the front end of the terminal 5 comes into contact with the bottom (front end surface) of the cavity 7, the lance 9 is restored, and the two locking portions 37 of one lance 9 are restored. Each enters the notch 43 of each of the two mating terminal connecting portions 14, the sealing member installed terminal 29 is prevented from coming off, and the sealing member 13 enters the rear portion 47 of the cavity 7, Sealing (water stoppage) with the seal member 13 is performed (see FIGS. 5 and 6).

  According to the connector 1, a plurality of terminals 5 installed in the housing 3 are locked by a single lance 9, so that a conventional gap (between the lance 9 and the side wall of the cavity 7 is arranged). ) Is not necessary, and the distance (pitch) between the cavities 7 adjacent to each other can be reduced.

  This will be described in detail by taking as an example a case where each of the two terminals 5 is inserted into each of the two cavities 7 adjacent to each other and is prevented from being detached by the lance 9. The two cavities 7 adjacent to each other are aligned in the lateral direction as described above.

  In the conventional connector, two cavities 203 adjacent to each other are divided into two by a side wall 201 as shown in FIG. The side wall 201 and the lance 205 are separated from each other by the dimension P1 due to the gap 207 between the side wall 201 and the lance 205.

  On the other hand, in the connector 1, as shown in FIG. 8B, each cavity 7 is partitioned by a partition wall (side wall) 71, but between the partition wall 71 and the lance 9, in the lateral direction. Since the gap is unnecessary and there is no gap, the pitch PB (see FIG. 8B) of the two cavities 7 that are adjacent to each other is more than the pitch PA shown in FIG. It can be reduced by “2 × P1”.

  Since FIG. 8 schematically shows the connector 1, the forms of the lances 9, 205 and the like are different from those shown in FIGS.

  Moreover, according to the connector 1, since the several terminal 5 latched by the one lance 9 is integrated by the sealing member 13 which has sealed the connection part of these terminals 5 and the electric wire 11. The number of installation steps of the terminal 5 to the housing 3 can be reduced, the connecting portion between the terminal 5 and the electric wire 11 is sealed, and the space between the housing 3 and the seal member 13 (terminal combined body 29). A seal is made.

1 Connector 3 Housing 5 Terminal 7 Cavity 9 Lance 11 Electric Wire 13 Sealing Member

Claims (4)

A housing provided with a plurality of cavities;
A plurality of terminals inserted into each of the cavities of the housing and installed in the housing;
A lance that is provided in the housing and locks a plurality of terminals installed in the housing by one;
A connector comprising: The connector according to claim 1,
The connector, wherein the plurality of terminals locked by the one lance are integrated. The connector according to claim 2,
The connector, wherein the plurality of terminals locked by the one lance are integrated by a sealing member that seals a connection portion between the terminals and the electric wire. A plurality of cavities into which each of a plurality of terminals is inserted;
A lance for locking a plurality of terminals inserted into each of the cavities by one;
A connector housing.

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