JP2013125686A - Connector housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector housing which can surely house an excess part of a terminal of a cable while achieving downsizing of itself.SOLUTION: A connector housing 20 having a configuration in which a sheath 12 covers around a plurality of covered electric wires 11 and provided in a terminal of a cable 10 subjected to processing in which a terminal fitting 15 is connected to a terminal of each covered electric wire 11 exposed by peeling off the sheath 12 includes: an inner housing 21 having terminal housing parts 22 in parallel for housing the terminal fitting 15 connected to the terminal of the covered electric wire 11; a mounted member 25 which is integrally formed in a rod-like shape to extend in the rearward of the inner housing and to which each covered electric wire 11 which has been exposed is wound spirally and mounted; and an outer housing 30 having a connector part 32 in which the inner housing 21 is housed and to which a mating housing can be fitted, and a housing chamber 40 in which the mounted member 25 is housed.

Description

  The present invention relates to a connector housing provided at an end of a cable in which a plurality of covered electric wires are covered with a sheath.

When connecting a connector housing to the end of a shielded cable that is an example of this type of cable, peel off the sheath end of the cable to expose the covered wire, and attach a terminal fitting to the exposed end of each covered wire. The terminal process which crimps | bonds is performed and each terminal metal fitting is accommodated in a connector housing (refer the following patent document 1).
Here, the operation of crimping the terminal fitting to the end of the covered electric wire is performed by using a crimping machine. However, in order to facilitate the crimping operation, it is necessary to appropriately take the exposed length of the covered electric wire.

  On the other hand, when taking a seal between the end of the cable and the housing, or when taking a shield structure in which the end of the cable is covered with a shield member, the exposed portion of the covered wire protruding from the end of the sheath becomes a so-called extra length portion. In addition, it is necessary to provide a storage chamber for accommodating the extra length portion of the housing.

JP-A-9-22755

In the past, when the extra length part was accommodated in the accommodation chamber, it was simply folded and pushed in. Therefore, especially when the extra length part was hard in a low-temperature atmosphere, the extra length part could not be folded small. There was also a risk that it could not be completely cut, or it could be pushed in and scratched. In order to solve this problem, a large storage chamber may be used. However, since the connector housing itself is increased in size, it cannot be simply adopted.
The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a connector housing that can surely accommodate the extra length of the end of the cable while realizing miniaturization of itself. There is to offer.

  The present invention has a structure in which a plurality of covered electric wires are covered with a sheath, and a process is performed in which a terminal fitting is connected to the end of each covered electric wire exposed by peeling the sheath. A connector housing provided at the end of the cable, wherein an inner housing provided side by side with a terminal accommodating portion that accommodates the terminal fitting connected to the end of the covered electric wire, and a rod-like form behind the inner housing A mounting member that is integrally formed to be extended and exposed by being wound around each of the covered electric wires; a connector portion in which the inner housing is housed and into which a mating housing can be fitted; and the mounting member And an outer housing provided with a storage chamber in which the battery is stored.

While the terminal fitting is accommodated in the terminal accommodating portion of the inner housing, the exposed portion of the covered electric wire, which is the extra length drawn to the rear of the terminal fitting, is spirally wound around the attachment member and attached. Thereafter, the inner housing is accommodated in the connector portion of the outer housing, and the mounting member with the extra length portion is accommodated in the accommodating chamber.
Since a rod-shaped mounting member is provided at the rear of the inner housing, and the extra length of the cable end is spirally wound around the mounting member, the housing can be mounted in the outer housing. All the extra length portions can be reliably accommodated while retaining a relatively short length, that is, realizing a reduction in the size of the connector housing. Since the extra length of the cable only needs to be wound around the mounting member, the mounting work is also simple.

The following configuration may also be used.
(1) A rubber plug fitting portion into which a rubber plug fitted to the end of the sheath of the cable is tightly fitted is formed at a rear end portion of the housing chamber in the outer housing. A rubber stopper is attached to the rear end of the outer housing.
When the mounting member provided behind the inner housing is housed in the housing chamber of the outer housing together with the covered electric wire mounted on the mounting member, the rubber stopper fitted to the end of the sheath is The rubber plug fitting portion provided in the portion is closely fitted and is prevented from coming off by the rubber plug presser, thereby sealing between the end of the cable and the outer housing. All the extra length of the cable end can be stored in the storage chamber, and the extra length can be prevented from overhanging the rubber plug fitting part, ensuring accurate fitting of the rubber plug. It becomes possible to take.

(2) The mounting member has a shape in which a plurality of vertically split pieces having a circular arc cross section are arranged in a circle at intervals in the circumferential direction, and an end of the sheath is provided at an extended end of the mounting member. A fitting band can be wound around the outer periphery.
After the extra length protruding from the end of the sheath is wound around the vertically split piece, the end of the sheath is fitted into the extending end of the vertically split piece, and a fastening band is wound around the outer periphery and fastened. By fixing the end of the sheath to the mounting member, the unraveling of the surplus length portion is prevented, and the surplus length portion can be more securely mounted on the mounting member in a fixed posture.

  According to the connector housing of the present invention, the extra length portion of the end of the cable can be reliably accommodated while realizing miniaturization of the connector housing.

1 is an exploded perspective view of a female waterproof connector according to Embodiment 1 of the present invention. Side view of inner housing with integrated mounting member Bottom view Side view of the cable attached to the mounting member Bottom view Longitudinal sectional view of the waterproof connector on the female side after assembly FIG. 6 is an exploded perspective view of a female waterproof connector according to Embodiment 2. The perspective view which abbreviate | omitted one part which shows the state which attached the extra length part of the cable to the attachment member Cross-sectional view of the mounting member Longitudinal sectional view of the waterproof connector on the female side after assembly

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, a female connector housing 20 (hereinafter referred to as a female housing 20) provided at the end of the shielded cable 10 is illustrated.
In the shielded cable 10 (hereinafter, cable 10) of this embodiment, three covered electric wires 11 used for a power line and the like and one drain wire are twisted together, and the periphery thereof is covered with a sheath 12. It has a structure (see FIGS. 4 and 5).

  At the end of the cable 10 connected to the female housing 20, the sheath 12 is peeled off by a predetermined length (for example, 80 mm), and the ends of the three covered electric wires 11 and the ends of the one drain wire are connected. It is exposed. Here, the exposed portion of the drain wire is formed as a drain wire in the form of the covered electric wire 11 by winding an insulating tape around the outer periphery or fitting a heat-shrinkable tube. Accordingly, the four covered electric wires 11 are substantially projected from the end of the sheath 12 by a predetermined length (80 mm).

A female terminal 15 is connected to the end of each exposed covered electric wire 11 (including the drain wire). The female terminal 15 has a structure in which a barrel 18 is provided behind a connecting portion 16 having a rectangular tube shape with an elastic contact piece therein, and the barrel 18 of the female terminal 15 is attached to the female terminal 15 using a crimping machine (not shown). By crimping, the female terminal 15 is crimped to the end of each covered electric wire 11.
In order to facilitate the crimping operation of the female terminal 15, the exposed length of the covered electric wire 11 is relatively long, and the exposed portion 11A is a so-called extra length portion.

The female housing 20 is attached to the end of the cable 10 that has been subjected to terminal processing as described above, so that the female waterproof connector F1 is formed. Subsequently, the structure of the female housing 20 will be described. To do.
As shown in FIG. 1, the female housing 20 includes an inner housing 21 and an outer housing 30 both made of a synthetic resin material.

The inner housing 21 is in the form of a thick plate having a flat square shape, and on the upper surface of the inner housing 21, four groove-like terminal accommodating portions 22 facing in the front-rear direction are arranged in the width direction at regular intervals. It is formed with.
A female terminal 15 can be inserted into the terminal accommodating portion 22 from the upper surface opening, and the female terminal 15 and a part of the terminal side of the covered electric wire 11 that is drawn out from the female terminal 15 are accommodated, not shown. The locking means prevents the rearward coming off.

  A mounting member 25 is integrally formed behind the inner housing 21. As shown in FIGS. 2 and 3, the mounting member 25 is formed in a solid round bar shape extending in the front-rear direction, and protrudes from the bottom surface of the inner housing 21 at the center in the width direction of the inner housing 21. They are connected via the formed connecting portion 26.

  The outer housing 30 is provided with a main body portion 31 having a square tube shape with a slightly flat rear opening, and a tower portion 33 into which the inner housing 21 can be inserted projects from a front end portion of the main body portion 31. By forming the hood part 34 around the tower part 33, the connector part 32 into which the other male housing (not shown) is fitted is formed.

A terminal insertion slot into which a tab of a male terminal attached to the mating male housing is inserted into the front wall of the tower portion 33 constituting the connector portion 32 at each position corresponding to each terminal accommodating portion 22 of the inner housing 21. 36 is opened.
A rubber ring 37 that functions to seal between the male housing and the mating male housing is fitted on the outer periphery of the base of the tower portion 33, and the upper surface of the hood portion 34 is connected to the mating male housing. A lock arm 38 is provided to lock the space in the fitted state.

On the other hand, the inside of the main body portion 31 of the outer housing 30 is a storage chamber 40 for storing the mounting member 25 formed by mounting the four covered electric wires 11 protruding from the end of the cable 10 as will be described in detail later. (See FIG. 6).
A rubber plug 45 is attached to the end of the cable 10 (sheath 12). The rubber plug 45 has a front rectangular block shape, and a central hole 46 is formed through which the cable 10 is tightly inserted. A lip 47 is formed. A rear end portion of the housing chamber 40 of the outer housing 30 is a rubber plug fitting portion 49 into which the rubber plug 45 is closely fitted.

  A back holder 50 that also serves as a rubber stopper is attached to the rear end of the main body 31 of the outer housing 30. The back holder 50 is also made of a synthetic resin, and is formed in a cap shape that is fitted on the rear end of the main body 31. An insertion port 51 for the cable 10 is opened in the rear plate of the back holder 50, and the left and right side surfaces are elastically engaged with the locking projections 39 formed on the left and right side surfaces in the rear end portion of the main body portion 31. An elastic locking piece 53 is provided which is locked to the stopper to prevent it from coming off.

The present embodiment has the above-described structure, and the procedure for assembling the female waterproof connector F1 will be described.
The back holder 50 and the rubber plug 45 are passed through the end of the cable 10, and the terminal processing of the cable 10 is performed from the state in the manner described above. If it repeats simply, the sheath 12 will be peeled off for a predetermined length, a total of four covered electric wires 11 will be exposed, and the female terminal 15 will be crimped | bonded and connected to the terminal of each covered electric wire 11. FIG.

  Subsequently, each female terminal 15 and the exposed portion 11 </ b> A of the covered electric wire 11 led out behind the female terminal 15 are accommodated in the corresponding terminal accommodating portion 22 in the inner housing 21. After that, as shown in FIGS. 4 and 5, the exposed portions 11 </ b> A of the four covered electric wires 11 drawn out to the rear of each female terminal 15 are aligned and tightly wound around the mounting member 25 in a spiral manner. Installed.

  On the outer housing 30 side, a rubber ring 37 is fitted on the outer periphery on the base side of the tower portion 33. From this state, the inner housing 21 and the mounting member 25 in which the female terminal 15 and the exposed portion 11A of the covered wire 11 are mounted as described above are inserted into the outer housing 30 from the rear surface opening side of the housing chamber 40. When the inner housing 21 is inserted into the tower portion 33 constituting the connector portion 32 and hits the front wall, the pushing is stopped. At this time, as shown in FIG. 6, the exposed portion 11A (extra length portion) of the covered electric wire 11 is stopped. ) Is mounted in the storage chamber 40.

After that, the rubber plug 45 is moved along the cable 10 to the end of the sheath 12 and is tightly fitted into a rubber plug fitting portion 49 provided at the rear end portion of the housing chamber 40 of the outer housing 30. Subsequently, the back holder 50 is also fitted along the rear end of the outer housing 30 while being moved along the cable 10, and the left and right elastic locking pieces 53 are fixed by elastically locking to the locking projections 39. The As a result, the rubber plug 45 and the inner housing 21 including the mounting member 25 are accommodated in the outer housing 30 in a state in which they cannot be removed.
This completes the assembly of the female waterproof connector F1.

According to the female housing 20 of the present embodiment, the round bar-shaped mounting member 25 is provided behind the inner housing 21 in which the female terminal 15 is accommodated, and is an extra length portion of the end of the cable 10 with respect to the mounting member 25. Since the exposed portion 11A of the covered electric wire 11 can be mounted in a fixed posture in which the exposed portion 11A is spirally tightly wound, the housing chamber 40 provided in the outer housing 30 is held in a relatively short length, that is, the female housing 20 is reduced in size. While realizing, all the extra length parts can be securely accommodated.
Further, when the exposed portion 11A (extra length portion) of the covered electric wire 11 is attached to the attachment member 25, after the female terminal 15 is accommodated in the inner housing 21, it is only necessary to wind the covered electric wires 11 together. The operation of mounting the ten extra length portions on the mounting member 25 can be easily performed.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the shape of the mounting member 65 integrally formed behind the inner housing 61 is changed so as to mount the exposed portion 11A (extra length portion) of the covered wire 11 protruding from the end of the cable 10 (sheath 12). As a result, the structure of the female housing 20A is also changed.
In the following, differences from the first embodiment will be mainly described, particularly only the basic differences will be described for the female housing 20A, and members and parts having the same functions as those of the first embodiment will be denoted by the same reference numerals. Thus, the description is omitted or simplified.

As shown in FIG. 7, the female housing 20A has an inner housing 61 and an outer housing 30A both made of a synthetic resin material.
The inner housing 61 has a slightly long block shape in the front-rear direction, and as shown in FIG. 8, two upper and lower terminal accommodating portions 62 are arranged in a staggered manner in the block. Each terminal accommodating portion 62 has a rear end side opened to the upper surface or the lower surface, and these openings are closed by a cover plate 63.

A mounting member 65 is integrally formed behind the inner housing 61. As shown in FIGS. 7 and 9, the mounting member 65 has two vertically divided pieces 66 each having an arc shape whose cross section is approximately ¼ circle so as to face each other so as to form a circle. It has a different shape. In other words, the mounting member 65 has a shape that is obtained by dividing a cylinder into two in the vertical direction, and has a length substantially equal to that of the inner housing 61. The end of the sheath 12 of the cable 10 can be almost closely fitted to the extended end of the mounting member 65, and the fastening band 70 can be wound around the extended end of the mounting member 65. A protrusion 67 for preventing the fastening band 70 from coming off is formed on the outer surface of the extending end of each vertically split piece 66.
As described above, the outer housing 30A has substantially the same structure as the outer housing 30 of the first embodiment.

In the present embodiment, the procedure for mounting the four female terminals 15 protruding from the end of the cable 10 and the exposed portion 11A of the covered wire 11 to the inner housing 61 and the mounting member 65 is as follows.
Each female terminal 15 connected to the end of the covered electric wire 11 is accommodated in the corresponding upper and lower terminal accommodating portions 62 in the inner housing 61. Subsequently, as shown in FIG. 8, the exposed portions 11 </ b> A of the four covered electric wires 11 drawn out to the rear of each female terminal 15 are aligned and spiraled around the mounting member 65 including the two vertically split pieces 66. Finally, the end of the sheath 12 is fitted into the extending end of the mounting member 65 (both vertically split pieces 66) (FIG. 9), and the fastening band 70 is wound around the outer periphery and fastened. In FIG. 8, the illustration of the female terminal 15 is omitted.

Thereafter, as shown in FIG. 10, the inner housing 61 and the mounting member 65 in which the female terminal 15 and the exposed portion 11 </ b> A of the covered wire 11 are mounted are inserted into the outer housing 30 </ b> A from the rear opening side of the accommodation chamber 40. When the inner housing 61 is inserted and accommodated in the tower portion 33 constituting the connector portion 32, the mounting member 65 to which the exposed portion 11A (extra length portion) of the covered electric wire 11 is mounted is stored in the storage chamber 40. It becomes a state.
Finally, by attaching the rubber stopper 45 and the back holder 50, the assembly of the female waterproof connector F2 is completed.

  According to the female housing 20 </ b> A of the present embodiment, the mounting member 65 that is divided into two cylinders is provided behind the inner housing 61 in which the female terminal 15 is accommodated, and the cable 10 is connected to the mounting member 65. Since the exposed portion 11A of the covered electric wire 11 that is the extra length of the terminal can be mounted in a fixed posture in which the exposed portion 11A is spirally tightly wound, the accommodation chamber 40 provided in the outer housing 30A is held at a relatively short length, that is, All the extra length portions can be reliably accommodated while realizing the downsizing of the female housing 20A.

When the exposed portion 11A (extra length portion) of the covered electric wire 11 is attached to the attachment member 65, after the female terminal 15 is accommodated in the inner housing 61, each of the covered electric wires 11 may be wound together. The operation of mounting the surplus portion on the mounting member 65 can be easily performed.
Further, after the extra length portion is wound around the mounting member 65 (both vertically split pieces 66), the end of the sheath 12 is fitted into the extended end of the mounting member 65 (both vertically split pieces 66) to be fastened. 70, that is, the end of the sheath 12 is fixed to the extending end of the mounting member 65, so that the unwinding of the extra length portion is prevented and the extra length portion is prevented from being attached to the attachment member 65. It can be mounted in a certain posture more reliably.

<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 Embodiment 1, the shape of the mounting member is not limited to a solid round bar, and may be a cylinder. Moreover, as long as the extra length part is easy to wind, it is good also as a rod shape or a cylinder shape with a square cross section.
(2) In the second embodiment, the number of vertically divided pieces, the width dimension of the vertically divided pieces, and the like can be arbitrarily selected according to conditions such as the diameter of the shield cable and the covered electric wire.

(3) In the above embodiment, the female waterproof connector is illustrated, but the present invention can be similarly applied to a male housing constituting the male waterproof connector.
(4) Furthermore, the present invention can be applied to a connector housing constituting a non-waterproof connector.
(5) Further, the cable is not limited to the shielded cable exemplified in the above embodiment, but the number of the covered wires is different, or the shielded cable does not use the drain wire. The present invention can be widely applied to all connector housings provided at the end of a covered cable.

F1, F2 ... Female side waterproof connector 10 ... Shielded cable (cable)
11 ... covered electric wire 11A ... exposed part (covered electric wire 11) (extra length part)
12 ... Sheath 15 ... Female terminal (terminal fitting)
20, 20A ... Female housing (connector housing)
DESCRIPTION OF SYMBOLS 21 ... Inner housing 22 ... Terminal accommodating part 25 ... Mounting member 30, 30A ... Outer housing 32 ... Connector part 40 ... Accommodating chamber 45 ... Rubber plug 49 ... Rubber plug fitting part 50 ... Back holder (rubber plug presser)
61 ... Inner housing 62 ... Terminal housing part 65 ... Mounting member 66 ... Vertically split piece 70 ... Fastening band

Claims (3)

It is a structure in which a plurality of covered electric wires are covered with a sheath, and a terminal fitting is connected to the end of each covered electric wire exposed by peeling off the sheath. A connector housing provided,
An inner housing provided side by side with a terminal accommodating portion for accommodating the terminal fitting connected to the end of the covered electric wire;
A mounting member that is integrally extended and formed at the rear of the inner housing in a rod-like form, and that each of the exposed covered electric wires is spirally wound and mounted;
An outer housing provided with a connector portion in which the inner housing is accommodated and a mating housing can be fitted, and a housing chamber in which the mounting member is accommodated;
A connector housing comprising: A rubber plug fitting portion into which a rubber plug fitted to the end of the sheath of the cable is tightly fitted is formed at a rear end portion of the housing chamber in the outer housing, and the outer housing The connector housing according to claim 1, wherein a rubber stopper is attached to the rear end of the connector housing. The mounting member has a shape in which a plurality of vertically split pieces having an arc shape in cross section are arranged in a circle at intervals in the circumferential direction, and the end of the sheath can be fitted to the extended end of the mounting member The connector housing according to claim 1, wherein a fastening band can be wound around the outer periphery.

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