JP2016024921A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a connector also adaptive to a different wire diameter.SOLUTION: The connector includes: a plurality of terminal fittings 3 with wires; a connector housing 1 formed by arranging a plurality of cavities 4 capable of accommodating the terminal fittings 3 therein in parallel with each other; and insulative separators 20 and 21 which can be attached to rear sides of the cavities 4 in the connector housing 1, and with which a plurality of division plates 20D and 21D are arranged in a direction where the terminal fittings 3 are arranged in parallel, and partition parts 20E and 21E are formed between the neighboring division plates and inserted through connection portions 7 between the terminal fittings 3 and wires 9 and 10 so as to partition the connection portions being neighboring in the direction of parallel arrangement from each other. A plurality of types of separators 20 and 21 are provided with which the partition parts 20E and 21E are formed with different width dimensions correspondingly to wire diameters, and selectively mounted in the connector housing 1.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a connector.

  Conventionally, as shown in Patent Document 1 below, for example, a plurality of cavities are formed in parallel inside a connector for connecting with various electrical components of an automobile, and terminal fittings with electric wires are formed inside each of them. Contained. In each cavity, it is necessary to set a partition wall in order to ensure the insulation between the terminal fittings adjacent to each other over at least the length range of the portion to be connected to the electric wire from the front end of the terminal fitting.

JP 2007-324049 A

  By the way, a plurality of types of electric wires having different diameters may be connected to the terminal fitting described above. For example, when a large-diameter electric wire is connected, the connecting portion between the electric wire and the electric wire and the terminal fitting is expanded. In particular, expansion in the parallel direction of the wires causes the following problems. That is, when the connecting portion between the electric wire and the terminal fitting expands in the parallel direction, the portion of the cavity that accommodates these parts expands in the parallel direction, and accordingly, the partition wall that partitions the cavities is thinned and sufficient. The problem is that the strength cannot be secured.

  This invention is completed based on the above situations, Comprising: It aims at providing the connector which can respond also to the specification containing a large diameter electric wire.

  The connector according to the present invention includes a plurality of terminal fittings, a plurality of electric wires in which each terminal fitting is connected to a portion where the coating of one end is peeled off and the core wire is exposed, and a cavity capable of accommodating each terminal fitting. A plurality of connector housings formed in parallel, and a partition that can be attached to the inlet side in the connector housing in the insertion direction of the terminal fitting in each cavity and that has a plurality of partition plates arranged in the parallel direction of the terminal fitting A partition portion is formed between the plates, and is configured to include an insulating separator that is capable of partitioning the connection portions adjacent to each other in the parallel direction by inserting the connection portion between the terminal fitting and the electric wire. A plurality of types having different width dimensions according to the electric wire diameter are provided, and are selectively attached to the connector housing.

  According to the present invention, a separator with a large diameter specification is selected, for example, or a separator with a small diameter specification is selected and attached to the connector housing depending on the difference in the diameter of the wire used. In addition, such specifications include specifications in which large-diameter wires and small-diameter wires are mixed, and in order to comply with such specifications, the separator also has a compartment for large-diameter wires and a compartment for small-diameter wires. Are mixed and assembled to the connector housing.

  By doing in this way, the connector corresponding to various electric wire diameters can be obtained by selecting a suitable thing only as a separator, sharing a connector housing.

Side sectional view of the connector according to the first embodiment. AA line sectional view of FIG. Flat cross-sectional view showing the terminal bracket and separator removed Rear view of connector with separator for small diameter wire FIG. 3 equivalent view showing a state in which the terminal fitting and the small-diameter electric wire separator are assembled. Front view of separator for small diameter wire FIG. 5 equivalent view showing a state in which a separator for large-diameter wires is attached Rear view of connector with separator for large-diameter wire Front view of separator for large-diameter wires Plan sectional view of the connector according to the second embodiment Similarly front view of separator Plan sectional view of the connector according to Embodiment 3

A preferred embodiment of the present invention will be described.
(1) In the connector of the present invention, the center of each of the cavity in which the terminal fitting is accommodated and the partition corresponding to the cavity, regardless of which type of the separator is attached to the connector housing It is preferable that the axes are formed so as to substantially coincide with each other.
According to such a configuration, even when different types of separators are attached to the common connector housing, the central axis of the cavity and the partition portion in which the terminal fitting is accommodated are substantially aligned. The terminal metal can be inserted smoothly.
(2) In the connector according to the present invention, the rear portion of the partition portion in the insertion direction of the terminal fitting may be configured to be formed with a guide portion that is widened in a tapered shape toward the rear.
According to the above configuration, since the guide portion is formed in the separator, it is possible to insert the terminal fitting into the partition portion while guiding the terminal fitting, so that the terminal fitting insertion operation can be performed smoothly.

  Next, Embodiments 1 to 3 in which the connector of the present invention is embodied will be described with reference to the drawings.

<Example 1>
1 to 9 show Embodiment 1 of the present invention. The female connector F according to the first embodiment includes a female connector housing 1. The connector housing 1 is made of synthetic resin, and as shown in FIG. 4, the whole is formed in a horizontally long shape. A lock arm 2 is disposed at the center of the upper surface of the connector housing 1. As shown in FIG. 1, the lock arm 2 is formed in a cantilever shape from the front end portion to the rear as a fulcrum. The lock arm 2 is formed so as to be able to bend in the vertical direction. When the female connector F is properly fitted with a male connector (not shown), the lock arm 2 can be locked with the male connector to lock the female and male connectors in a fitted state.

  A plurality of cavities 4 for accommodating terminal fittings 3 (female terminal fittings) are formed in the connector housing 1. Each cavity 4 is formed so as to penetrate in the front-rear direction. In the first embodiment, as shown in FIG. The lower side is arranged at a constant pitch interval in the width direction. The upper stage side is arranged separately on the left and right with the lock arm 2 sandwiched in the width direction. In FIG. 4, three chambers are arranged in parallel on the right side of the lock arm 2 and two chambers are arranged in parallel on the left side. As shown in FIG. 4, in the connector housing 1 where the cavities 4 are arranged in two upper and lower stages, the upper cavities 4 are staggered with respect to the lower cavities 4 in the width direction. Yes.

  Here, the terminal metal fitting 3 accommodated in each cavity 4 is demonstrated (refer FIG. 1). The terminal fitting 3 has a square tube portion 5 for connection with a male terminal fitting (not shown). A locking projection 6 is formed on the lower surface of the rectangular tube portion 5 so as to protrude. A barrel portion for connection to an electric wire is formed at the rear end portion of the rectangular tube portion 5, and a connecting portion 8 is formed between the rectangular tube portion 5 and the barrel portion 7. The barrel portion 7 includes a wire barrel 7A disposed on the front side and an insulation barrel 7B continuously disposed on the rear side. The wire barrel 7A is for caulking the exposed core wire by peeling off the covering of the end portions of the electric wires 9, 10, and the insulation barrel 7B is for caulking against the covering of the electric wires 9, 10. .

  In the first embodiment, either the large-diameter wire 10 or the small-diameter wire 9 is selectively used as the wire connected to the terminal fitting 3. In the case of the first embodiment, the maximum width dimension of the barrel part 7 is set to be larger than the width dimension of the rectangular tube part 5 regardless of the size of the electric wire connected to the terminal fitting 3.

  As shown in FIG. 3, a front holder 11 is attached to the front end portion of the connector housing 1. On the inner surface side of the front holder 11, a housing recess 12 that constitutes the front end of each cavity 4 is formed in a recess corresponding to each cavity 4. Each receiving recess 12 has a front stop wall 13 of the terminal fitting 3, and a plurality of tab insertion holes 14 are formed through the front stop wall 13 in accordance with the pitch of the cavities 4. When these tab insertion holes 14 are fitted with male connectors, tab portions of male terminal fittings accommodated in male connectors (not shown) can enter.

  As shown in FIGS. 1 and 3, a lance 15 for preventing the terminal fitting 3 from coming off is disposed on the bottom surface of each cavity 4 and near the front holder 11. The lance 15 is cantilevered forward and obliquely upward, and can be bent in the vertical direction. When the terminal fitting 3 is inserted to a proper position with respect to the cavity 4, the lance 15 is locked to the locking projection 6 of the terminal fitting 3 and serves to prevent the terminal fitting 3 from coming off.

  As shown in FIG. 1, a retainer insertion hole 16 is provided at a substantially central portion in the front-rear direction of the connector housing 1. The retainer insertion hole 16 is formed to open to the connector housing 1 in three directions, both downward and in the width direction. The retainer insertion hole 16 has a depth communicating with all the upper and lower cavities 4.

  A retainer 18 is mounted in the retainer insertion hole 16 and is mounted in a state in which the three openings of the connector housing 1 are closed. The retainer 18 is formed with a plurality of locking projections 17 corresponding to the respective terminal fittings 3, and these locking projections 17 can be locked to the rear ends of the rectangular tube portions 5 of the respective terminal fittings 3. Although not shown in detail, the retainer 18 is set so as to be held at two positions (a temporary locking position and a main locking position) having different mounting depths with respect to the retainer insertion hole 16. When the retainer 18 is in the temporary locking position, the terminal fitting 3 can be inserted into and removed from the cavity 4, but when the retainer 18 is in the full locking position, the locking projection 17 is formed on the rectangular tube portion 5 of the terminal fitting 3. It can be locked to the rear end. Thus, when the retainer 18 is in the final locking position, the terminal fitting 3 is double-locked together with the locking by the lance 15.

  As shown in FIG. 1 and the like, a separator mounting hole 19 is opened at a rear portion of the retainer insertion hole 16 on the lower surface of the connector housing 1, and the separator mounting hole 19 is made of an insulating material (synthetic resin) separator. 20 and 21 are mounted from below the connector housing 1. The separators 20 and 21 are arranged so that the connecting portions between the barrel portions 7 of the terminal fittings 3 and the electric wires are positioned in a state where the terminal fittings 3 are inserted into the cavities 4 to the normal positions, and are adjacent in the width direction. It plays the role which partitions off between the terminal metal fittings 3 to perform in an insulated state.

  In the case of the first embodiment, as described above, two types of specifications are set in which the diameter of the electric wire connected to the terminal fitting 3 is large and small, and two types of separators 20 and 21 are set correspondingly. (Hereinafter, the one shown in FIG. 6 is called a small-diameter separator 20 and the one shown in FIG. 9 is called a large-diameter separator 21).

  Both the separators 20 and 21 have base plates 20A and 21A formed to have a size capable of closing the separator mounting hole 19. A pair of upright pieces 20B and 21B are formed to rise at both ends in the longitudinal direction of the base plates 20A and 21A. Lock protrusions 20C and 21C are formed to project from the outer surface side of both standing pieces 20B and 21B and closer to the rear end. Correspondingly, a pair of locking step portions 22 is formed on the rear end portion of the connector housing 1 and on the surface facing the separator mounting hole 19 (see FIGS. 2 and 3). The separator is attached to the connector housing 1 as a whole by locking the locking protrusions 22 to the corresponding locking step portions 22. At this time, the base plates 20 </ b> A and 21 </ b> A are substantially flush with the lower surface of the connector housing 1.

  As shown in FIGS. 6 and 9, a plurality of partition plates 20 </ b> D and 21 </ b> D are erected at an equal pitch on the base plates 20 </ b> A and 21 </ b> A of both separators 20 and 21. The space between the partition plates 20D and 21D adjacent to each other in the width direction and the space between the partition plates 20D and 21D located at both ends in the width direction and the corresponding standing pieces 20B and 21B are the respective cavities 4 on the lower side. The partition portions 20E and 21E communicating with each other are configured. Each of the partition plates 20D and 21D is formed over the entire length of the base plates 20A and 21A in the front-rear direction, and the rising height of each of the partition plates 20D and 21D is when the separators 20 and 21 are attached to the connector housing 1. It is set so that it can substantially contact the ceiling surface of the hole 19.

  In the small-diameter separator 20 shown in FIG. 6, each partition 20E is formed with a width dimension that allows insertion of the barrel portion 7 (insulation barrel 7B) when the rectangular tube portion 5 of the terminal fitting 3 and the small-diameter electric wire 9 are connected. ing. Further, each partition 20E of the small diameter separator 20 is formed with a pitch equal to the pitch of each cavity 4 including each receiving recess 12. Further, when the small-diameter separator 20 is mounted on the connector housing 1, the center axis in the width direction of each partition portion 20E is substantially aligned with the center axis in the width direction of the corresponding cavity 4.

  In the large-diameter separator 21 shown in FIG. 9, each partition portion 21E is formed with a width dimension that allows insertion of the barrel portion 7 (insulation barrel 7B) when the rectangular tube portion 5 of the terminal fitting 3 and the large-diameter electric wire 10 are connected. Has been. On the other hand, each partition plate 21 </ b> D of the large-diameter separator 21 is formed wider than each partition plate 20 </ b> D of the small-diameter separator 20. Moreover, the pitch of each partition part 21E of the separator 21 for large diameters is set to a pitch that is approximately twice the pitch of the cavity 4 as shown in FIG. In addition, with the large-diameter separator 21 mounted on the connector housing 1, the central axis in the width direction of each partition portion 21 </ b> E is aligned with the central axis in the width direction of the cavity 4 that is located one distance in the width direction. It is. Specifically, the central axis of the partition part 21E located at both ends in the width direction and the central axis of the housing recess 12 located at both ends in the width direction are substantially matched. That is, when the large-diameter electric wire 10 is used, the cavities 4 become empty cavities 4 that are not used every other in the width direction.

  Next, the operation of the first embodiment configured as described above will be described. When a connector in which the small-diameter wire 9 is connected to the terminal fitting 3 is manufactured, the small-diameter separator 20 is selected and attached to the connector housing 1 in advance. The small-diameter separator 20 is inserted from the lower side of the connector housing 1 through the separator mounting hole 19, and the two locking protrusions 20 </ b> C are locked to the corresponding locking step portions 22, thereby completing the mounting.

  After the small diameter separator 20 is attached, the terminal fitting 3 with electric wire is inserted into the cavity 4. At this time, the retainer 18 is held in the temporary locking position, and each partition portion 20E is positioned substantially coaxially with the corresponding cavity 4 (lower cavities 4). The terminal fitting 3 is inserted into the cavity 4 through each partition 20E of the small diameter separator 20. During this time, the terminal fitting 3 moves forward while bending and deforming the lance 15, and when the front end reaches a position (normal insertion position) where it substantially contacts the front surface in the corresponding housing recess 12, the lance 15 returns and locks. Lock to the protrusion 6. Next, when the retainer 18 is pushed to the full locking position, each locking projection 17 of the retainer 18 is locked to the rear end of the rectangular tube portion 5 of the terminal fitting 3. Thus, since the retainer 18 is locked together with the locking by the lance 15, the terminal fitting 3 is doubled and prevented from coming off.

  In the state where the terminal fittings 3 with electric wires are accommodated in the connector housing 1 as described above, the barrel portions 7 of the terminal fittings 3 and a part of the small-diameter electric wires 9 are positioned in close contact with each partition portion 20E. ing. Thus, the barrel portions 7 adjacent to each other in the width direction are held in an electrically insulated state by the partition plate 20D.

  Next, a case where a connector in which the large-diameter wire 10 is connected to the terminal fitting 3 will be described. In that case, the large diameter separator 21 is selected and attached to the connector housing 1. The large-diameter separator 21 is attached in the same manner as the small-diameter separator 20 described above.

  On the other hand, when the terminal fitting 3 to which the large-diameter electric wire 10 is connected is accommodated in the connector, the terminal fitting 3 is inserted into each partition portion 21E of the large-diameter separator 21. Since each partition portion 21E of the large-diameter separator 21 is coaxial with the cavity 4 placed in the width direction, the front end portion of the terminal fitting 3 inserted through each partition portion 21E is positioned in the width direction. Is accommodated in each cavity 4. As described above, the terminal fitting 3 housed in the connector F and connected to the large-diameter electric wire 10 is double-prevented by the lance 15 and the retainer 18.

  The effects of the first embodiment are as follows.

  In the present embodiment, in the case where the small-diameter wire 9 is connected to the terminal fitting 3, the small-diameter separator 20 is selected and attached to the connector housing 1. In the case where the large-diameter wire 10 is connected to the terminal fitting 3, the large-diameter separator 21 is selected and attached to the connector housing 1. The large-diameter separator 21 has a cavity 4 on the connector housing 1 side every other side in the parallel direction, thereby making the partition plates 21D of the large-diameter separator 21 thick and ensuring sufficient strength. be able to. Therefore, according to the connector F of the first embodiment, by selecting an appropriate type of separators 20 and 21 according to the size of the electric wire diameter, it is possible to cope with specifications having different electric wire diameters.

  Further, in both the small-diameter and large-diameter separators 20 and 21, the center in the width direction of the partitioning portions 20 </ b> E and 21 </ b> E (the parallel direction of the terminal fittings) and the center in the width direction of the housing recess 12 are coaxial. Therefore, the terminal metal 3 can be accommodated smoothly.

<Example 2>
10 and 11 show Embodiment 2 of the present invention. The second embodiment is compatible with the first embodiment (the specification in which the terminal fitting 3 in which only the small-diameter wire 9 is connected to the same connector housing 1 is accommodated, and the terminal fitting 3 in which only the large-diameter wire 10 is connected are accommodated. In addition to the above-mentioned specification), a connector F that can select a specification (mixed specification) in which the terminal fitting 3 to which the small-diameter electric wire 9 is connected and the terminal fitting 3 to which the large-diameter electric wire 10 is connected can be selected. doing.

  The configuration of the connector housing 1 according to the second embodiment is the same as that of the first embodiment, but a separator 23 (mixed separator) that can handle mixed specifications is set. As shown in FIG. 11, the separator 23 has a total of three large-diameter electric wire sections 26 partitioned in parallel by a partition plate 24 in the left half area shown in the drawing, and is arranged in the right half area shown in the figure. A total of five small-diameter electric wire partition sections 27 partitioned by the partition plate 25 are arranged in parallel. The configuration of the small-diameter electric wire partitioning portion 27 is the same as the partitioning portion 20E of the small-diameter separator 20 of the first embodiment, and the configuration of the large-diameter electric wire partitioning portion 26 is the same as that of the large-diameter separator 21 of the first embodiment. It is the same as the partition part 21E.

According to the second embodiment, mixed specifications can be handled, so a wider range of specifications can be realized as compared to the first embodiment.
Other configurations are the same as those of the first embodiment, and the same operational effects can be exhibited.

<Example 3>
FIG. 12 shows a third embodiment of the present invention. In the separator 28 (a large-diameter type separator) according to the third embodiment, each partition 28E has a wide opening at the terminal insertion side. That is, each partition plate 28D is formed so that the range from the center portion in the insertion direction of the terminal fitting 3 to the rear end portion is gradually expanded toward the rear in the insertion direction, and serves as a guide portion 28F.

  By doing in this way, since it can insert in each partition part 28E, guiding the terminal metal fitting 3, the insertion operation | work of the terminal metal fitting 3 can be performed smoothly.

  Other configurations are the same as those of the first embodiment and the second embodiment, and the same effects can be exhibited.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, the case where the diameter of the electric wire accommodated in the connector housing can be adapted to two kinds of specifications, large and small, is shown, but the number of kinds of specifications may be three or more. It is sufficient to set the type of separator according to.
(2) In the separator of Example 2 described above, the large-diameter electric wire partitioning portion and the small-diameter electric wire partitioning portion have been integrated into one half region in the width direction. The arrangement | sequence of the division part for electric wires should not be limited. A plurality of types of separators having different arrangements may be prepared, and a desired type may be selected and attached to the connector housing. If it does in this way, it can respond also to the broader specification which made the arrangement | sequence of a large diameter electric wire and a small diameter electric wire different.
(3) In each of the above embodiments, the separator is mounted from the lower side of the connector housing. However, the separator may be mounted from the upper side or the rear side.

  (4) In the above-described embodiments, the connector having the structure including the front holder is shown. However, the connector having a structure in which the front holder is formed integrally with the connector housing may be used.

DESCRIPTION OF SYMBOLS 1 ... Connector housing 3 ... Terminal metal fitting 4 ... Cavity 7 ... Barrel part 20, 21, 23, 28 ... Separator 20D, 21D, 24, 25, 28D ... Partition plate 20E, 21E, 26, 27, 28E ... Partition part 28F ... Guide section

Claims (3)

A plurality of terminal fittings;
A plurality of electric wires to which the terminal fittings are connected to a portion where the coating of the one end is peeled off and the core wire is exposed;
A connector housing in which a plurality of cavities capable of accommodating the terminal fittings are formed in parallel;
The connector housing can be attached to the inlet side of each cavity in the insertion direction of the terminal fitting, and a plurality of partition plates are arranged in the parallel direction of the terminal fitting, and a partition portion is formed between adjacent partition plates. An insulating separator capable of partitioning the connecting portions adjacent to each other in the parallel direction by inserting the connecting portion between the terminal fitting and the electric wire;
Configured with
The separator is provided with a plurality of types in which the partition portion is formed in different width dimensions according to the wire diameter, and is selectively mounted on the connector housing.   The separator is formed so that the central axes of the cavity in which the terminal fitting is accommodated and the partition portion corresponding to the cavity substantially coincide with each other regardless of the type of the separator mounted on the connector housing. The connector according to claim 1.   The connector according to claim 1, wherein a guide portion that is widened in a tapered shape toward the rear is formed at a rear portion in the insertion direction of the terminal fitting in the partition portion.

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