JPH065147U - connector - Google Patents

Abstract

(57) [Summary] [Purpose] To enable crimp terminals to be inserted later into connectors for pressure contact terminals. [Composition] In the connector housing, an opening for inserting a wire of a pressure contact terminal is provided in an upper portion of the terminal accommodating chambers arranged side by side, and an opening for inserting a wire and inserting a crimp terminal is provided at a rear end of the terminal housing chamber. A holder installation part further lowered from the bottom is provided in the rear end opening, and a holder for bending the electric wire is attached to the holder installation part, and the holder is not projected from the bottom of the terminal accommodation chamber, The end opening is held open.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector that accommodates a crimp terminal and a crimp terminal. More specifically, since the crimp terminal is inserted first and the crimp terminal is inserted later, the fixing part of the wire connected to the crimp terminal is inserted after the crimp terminal. It is attached in a state where it is possible.

[0002]

[Prior art]

 Recently, automation of the assembly of the wire harness to the connector has been demanded, and as one of the methods, the wire is press-fitted between the press-connecting blades of the press-connecting terminal while the press-connecting terminal is installed inside the connector housing. An automatic machine is used.

However, in the current wire harness system, the wiring direction of the wire harness is complicated, and it is necessary to change the unit side. Therefore, it is not possible to replace all the terminals with the pressure contact terminals and assemble them into the connector by an automatic machine. Have difficulty.

For example, as shown in FIG. 8 (A), when the wire harnesses are in parallel, the connectors C and D can be assembled by an automatic machine using pressure contact terminals. As shown in (B), the flow of the wire harness assembled to the connectors A to D is different. Therefore, as shown in Fig. 8 (C), improve the flow of electric wires and try to automate those that can use pressure contact terminals, and those that cannot be assembled automatically, install crimp terminals and insert them later. ing. That is, while both ends of the wire harness are automatically assembled by using the pressure contact terminals to the connectors C and D, the crimp terminal t is attached to the other end of the wire harness in which one end of the connector A is assembled using the pressure contact terminal, and the above-mentioned connector is connected. Similarly, the crimp terminal t is attached to the tip of the wire harness having one end assembled to the connector B, and the connector is inserted into the connectors D and A.

[0005]

[Problems to be solved by the device]

 Under these circumstances, the pressure contact terminals and the crimp terminals are accommodated in a mixed state in the terminal accommodating chambers provided side by side in one connector housing. In such a connector housing, in order to insert the crimp terminal later, it is necessary to open the rear end of the terminal accommodating chamber on the crimp terminal insertion side.

On the other hand, an electric wire press-fitted between the press contact blades of the press contact terminal is fixed to the terminal accommodating chamber or the press contact terminal so as not to come off when a tensile force is applied to the wire by an external force. There is a need.

As a fixing means of the electric wire, conventionally, as shown in FIG. 9 (A), an insulation barrel 2 is provided at the rear end of the pressure contact terminal 1, and the insulation barrel 2 is crimped to the electric wire W. As shown in FIG. 9 (B), a cover 4 is attached to the connector housing 3 and the electric wire W is bent and fixed to the connector housing 3, and a combination of both is proposed as shown in FIG. 8 (C). There is.

As shown in (A) and (C) above, when the insulation barrel 2 is provided, there is a drawback that the entire length of the pressure contact terminal 1 becomes long and the connector housing 3 becomes large accordingly. Further, in the case of collective pressure contact, a force for crimping the insulation 2 is required in addition to the force for pressing the electric wire W against the pressure contact blade 5, which has a drawback that the structure of the automatic assembly machine becomes complicated. .

On the other hand, as shown in (B) and (C), when the cover 4 is attached to the connector housing 3 and the electric wire W is bent, the rear end opening is closed or narrowed in the covered state, and the crimp terminal is moved backward. It is impossible or extremely difficult to insert.

The present invention has been made in view of the above-mentioned problems, and it is possible to open the rear end opening of the terminal accommodating chamber with the means for fixing the electric wire of the pressure contact terminal attached and to insert the crimp terminal later. The purpose is to provide a connector that

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an opening for inserting a wire of a pressure contact terminal in the upper part of a side by side terminal accommodating chamber, and an opening for inserting a wire and inserting a crimp terminal at a rear end. In the connector housing, a holder installation part that is further lowered from the bottom is provided at the rear end opening of the terminal accommodating chamber, a holder for bending the wire is attached to the holder installation part, and the holder projects from the bottom of the terminal accommodating chamber. It is intended to provide a connector configured to open and hold the rear end opening of the terminal accommodating chamber without doing so.

The connector housings are provided in a plurality of stages, the upper openings of the respective connector housings are faced to each other and are stacked in a block shape in the upper and lower stages, and a holder holding body is inserted into the facing openings. It is preferable that the holder attached to the upper and lower connector housings is held.

[0013]

[Action]

 With the above configuration, since the electric wire connected to the pressure contact terminal is bent by the holder and held in the terminal storage chamber, the electric wire can be fixed and held even if a tensile force acts on the electric wire. Further, since the holder does not protrude from the bottom surface of the terminal accommodating chamber, the rear end opening of the terminal accommodating chamber is not blocked by the holder, and the crimp terminal can be inserted later.

Further, when the block-type connectors are formed by stacking the connector housings on the upper and lower sides, it is possible to more reliably hold the holder and increase the wire holding force by interposing the holder holding body.

[0015]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. 1 to 6 show a first embodiment, which has a structure in which upper and lower two-stage housings are combined. Reference numeral 10 is an upper housing, 11 is a lower housing, 12 is a holder for bending electric wires which is attached to the upper and lower housings 10 and 11, respectively, and 13 is a holder support which is interposed between the upper and lower holders 12 and is attached.

The upper and lower housings 10 and 11 have substantially the same structure with either one being reversed. Therefore, the structure will be described based on the lower housing 11 side, and similar symbols a to m will be given to the upper housing. Terminal housing chambers 11a are arranged in parallel in the connector housing 10 by partition walls 11b. In this embodiment, seven terminal accommodating chambers 11a are provided. An opening 11c is formed at the upper rear side of each terminal accommodating chamber 11a so that the electric wire can be pressed against the press-contact terminal 20 by pushing it down from the opening 11c. In addition, the rear end face is used as an opening 11d to serve as an insertion hole for the electric wire W connected to the press contact terminal 20 and an insertion port for the crimp terminal 21 to be inserted later.

On the bottom surface 11q of each terminal accommodating chamber 11a, a lance portion 11e that engages with the engaging portions 20a and 21a provided on the pressure contact terminal 20 and the crimp terminal 20 is cut and raised.

At the rear end of the connector housing 11, there is continuously formed a holder installation portion 11f in which a bottom surface 11q is lowered stepwise. Holes 11g for inserting the bent locking portions 12b of the holder 12 are formed at positions corresponding to the boundary portions of the terminal accommodating chambers 11a of the holder installation portion 11f, and both ends of the base frame 12b of the holder 12 are formed outside the rear end left and right. The mounting hole 11h for inserting and locking is formed by cutting out from the end face side.

Further, in order to connect the upper and lower connector housings 10 and 11, a connecting portion having a hole 11j into which a connecting portion 10i protruding from the upper housing 10 is fitted is formed on both left and right sides of a rear end of the connector housing 11. 11k is provided, and a connecting portion 11m to be inserted into the connecting portion 10k of the upper housing 10 is provided. Further, a pair of right and left dovetail-shaped locking grooves 10n are provided on the bottom surface of the front part of the upper connector housing 10, and a projection 11p for locking the locking groove 10n is provided on the front part of the lower connector housing 11.

Although only one holder 12 is shown in FIG. 1, two holders 12 are required to be attached to the upper and lower housings 10 and 11, respectively. The holder 12 has a shape in which a J-shaped bent locking portion 12a is provided at a front end of a flat plate-shaped base frame 12b which is long in the left-right direction at predetermined intervals. After the electric wire W is connected to the pressure contact terminal 20 set in the terminal accommodating chamber, the holder 12 is inserted at both ends of the base frame 12b into the mounting holes 10h (not shown) and 11h of the connector housings 10 and 11, respectively, and is bent. The bent portion of the stop portion 12a is fitted and attached to the holes 10g and 11g.

With the holders 12 and 12 attached to the connector housings 10 and 11, the electric wire W is bent and inserted between the base frame 12b and the bottom surface of the holder installation portion 11f, and the press contact blade 20a of the press contact terminal 20 and the electric wire W are inserted. External force does not act on the contact area with. In addition, the base frame 12b of the holder 12 is set so as not to protrude from the bottom surfaces 10q and 11q of the terminal accommodating chambers 10a and 11a, and the rear end openings 10d and 11d of the terminal accommodating chambers 10a and 11a are set to be open. ing.

In the holder holding body 13, the crimping terminals 21 that are inserted later into the connector housings 10 and 11 are also inserted, and all the required terminals are inserted into the terminal accommodating chambers 10a and 11a. It is attached after assembling 11 and 11.

The holder holder 13 is provided with a horizontal board portion 13a interposed between the rear openings 10c and 11c of the connector housings 10 and 11, and is provided in each terminal accommodating chamber on both upper and lower surfaces of the board portion 13a. Cover portions 13b and 13c projecting stepwise are provided at corresponding positions, and the rear openings 10c and 11c of the terminal accommodating chambers 10a and 11a are closed by these cover portions 13b and 13c.

From the rear ends of the cover portions 13b, 13c, electric wire pressing plates 13d, 13e are provided which are vertically inclined toward the front, and guide the electric wire W in a direction in which the electric wire W is bent and fixed by the holder 12 during mounting. I am trying.

Further, a holder pressing plate 13f projecting vertically upward and downward is provided on the rear end surface of the substrate portion 13a, and the upper end surface 13f-1 of the holder pressing plate 13f is the substrate 12b and the lower end surface of the upper holder 12. 13f-2 is brought into contact with the base frame 12b of the lower holder 12 to press the holder 12 toward the holder installation portions 10f, 11f of the connector housings 10, 11.

On the right and left end surfaces of the holder pressing plate 13f, locking projections 13g for engaging with the connector housing are provided so that the holder pressing plate 13f is locked at the above-mentioned mounting position.

Next, a mounting operation of the press contact terminal 20 and the crimp terminal 21 to the connector will be described. FIG. 2 shows a state in which the crimp terminal 21 is rearwardly inserted into the terminal accommodating chamber 10a of the upper connector housing 10, while the pressure contact terminal 20 is first inserted into the terminal accommodating chamber 11a of the lower connector housing 11, and FIG. It shows a state in which the pressure contact terminal 20 is inserted into each of the terminal accommodating chambers 10a and 11a of 10 and 11.

In order to mount the pressure contact terminal 20 in the terminal accommodating chamber, the rear opening portions 10c, 11c of the terminal accommodating chambers 10a, 11a are directed upward without the connector housings 10, 11 being combined, and the pressure contact terminal 20 is attached. Is locked to the lance portions 10e and 11e in the terminal accommodating chambers 10a and 11a and set at a predetermined position. In this state, the electric wire W is pushed down from above to be inserted between the press contact blades 20a to connect the front end of the electric wire W to the press contact terminal 20 and to connect the connected electric wire W to the rear end opening of the terminal accommodating chambers 10a, 11b. 10d and 11d are penetrated and extended outward. The above operation is simultaneously performed by the automatic machine with respect to the pressure contact terminals mounted on the connector housing.

After connecting the pressure contact terminal 20 and the electric wire W, the holders 12 are set in the connector housings 10 and 11, respectively. When set in the holder 12, the electric wire W connected to the press contact terminal 20 is bent and fixed between the holder 12 and the holder installation portion 11f so as not to come out from the connector housings 10 and 11.

Since the holder 12 set in the connector housings 10 and 11 does not protrude from the bottom surfaces 10q and 11q of the connector housings 10 and 11, the rear end openings 10d and 11d of the respective terminal accommodating chambers 10a and 11a are held by the holders 12. I can't narrow it down.

Therefore, as shown in the upper housing 10 of FIG. 2, when the crimping terminal 21 that has been crimped in advance with the electric wire W is inserted from the rear end opening 10d, it can be easily inserted without being interfered by the holder 12. You can

After the pressure contact terminals 20 and the crimp terminals 21 are all installed in the respective terminal accommodating chambers 10a and 11a of the connector housings 10 and 11, as shown in FIGS. 2 and 3, the upper connector housing 10 is turned upside down. And attach it to the lower connector housing 11.

Next, as shown in FIGS. 3 and 5, the holder holding body 13 is inserted from the rear end opening of the upper and lower connector housings 10 and 11, and is inserted and fixed between the connector housings 10 and 11. The upper and lower holders 12 and 12 are held by the holder holding portion 13 and at the same time, the upper and lower holders 12 and 12 are pushed toward the holder installation portions 10f and 11f to fix the electric wire W between the holder 12 and the holder arrangement portions 10f and 11f. Also, the electric wire W is guided in the bending direction by the holders 12 and 12 by the electric wire pressing plates 13d and 13e. Each electric wire W is taken out of the connector housing from between the holder pressing plates 13f.

With the above-described configuration, the crimp terminal 21 can be easily inserted into the connector housing into which the press-contact terminal 20 is inserted and then inserted into the terminal housing chamber from the rear end opening. Also, since the wire connected to the press contact terminal is bent and fixed by the holder and the holder is fixed by the holder holding body, the holder is held by the holder holding body even if an external force is applied to the wire. Lifting is prevented and electric wire holding power is strong.

FIG. 7 shows a second embodiment in which the connector housings are not assembled vertically but are made up of one connector housing. The connector housing 30 of the second embodiment has substantially the same shape as the upper and lower connector housings 10 and 11 except that it is not configured to combine the upper and lower connector housings. That is, the rear side portion of the upper surface of each terminal accommodating chamber 30a is provided with the opening portion 30b and the rear end opening portion 30d, and the bottom surface 30q is provided with the lance portion 30e so as to protrude from the rear end opening portion 30. The holder installation portion 30f is formed by lowering it from the bottom surface 30q by one step.

As shown in the figure, after connecting the electric wire W to the pressure contact terminal 20 set in the terminal accommodating chamber 30 a, the opening 30 c on the upper surface is closed by the cover 31. After connecting the electric wire W, the holder 12 is attached to the holder installation portion 30f, and the electric wire W is bent and fixed. With the holder 12 attached, the upper surface of the base frame 12b of the holder 12 is flush with the bottom surface 30q of the terminal accommodating chamber 30a, so that the rear end opening 30d of the terminal accommodating chamber 30 is not blocked by the holder 12. The crimp terminal 21 crimped to the electric wire W can be put in the terminal accommodating chamber 30a provided side by side.

[0037]

[Effect of device]

 As is clear from the above description, according to the present invention, the holder for fixing the wire connected to the pressure contact terminal that is inserted in the connector housing is not projected from the wall surface of the terminal accommodating chamber. The opening can be held open and crimp terminals can be inserted later. In this way, the crimp terminal can be installed later in the connector housing for the pressure contact terminal.Therefore, in the process of assembling the wire into the connector housing, the pressure contact terminal should be used to automatically assemble the connector. Can be done.

Further, since the holder for bending the electric wire is held by the holder holding body, it is possible to prevent the holder from being lifted up when a tensile force is applied to the electric wire, and it is possible to improve the electric wire holding force.

Further, since the electric wire connected to the pressure contact terminal is fixed by the above holder, it is possible to prevent the enlargement of the connector by shortening the length of the pressure contact terminal without providing an insulation barrel. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where terminals are attached to a housing of the connector.

[Figure 3] Same as above

[Fig. 4] Same as above

5 is a cross-sectional view showing a state where a holder holding body is assembled to the connector housing of FIG.

FIG. 6 is a perspective view showing a state in which the upper and lower connector housings are assembled.

FIG. 7 is a sectional view showing a second embodiment of the present invention.

8A, 8B, and 8C are schematic diagrams showing wiring states.

9 (A), (B) and (C) are drawings showing a conventional example.

[Explanation of symbols]

 10 Upper Connector Housing 11 Lower Connector Housing 10a, 11a Terminal Housing 10c, 11c, 10d, 11d Opening 10e, 11e Lance 10f, 11f Holder Installation 12 Holder 13 Holder Holder 20 Pressure Contact Terminal 21 Crimp Terminal W Wire

Claims (2)

[Scope of utility model registration request] 1. A connector housing provided with an opening for inserting a wire of a pressure contact terminal at an upper portion of a terminal accommodating chamber arranged side by side, and an opening for inserting a wire and insertion of a crimp terminal at a rear end of the connector housing. A holder installation part that is further lowered from the bottom is provided in the rear end opening of the accommodation chamber, a holder for bending the wire is attached to the holder installation part, and the holder is not projected from the bottom of the terminal accommodation chamber. A connector configured to hold the rear end opening portion open. 2. The connector housing is provided in a plurality of stages,
The upper openings of the respective connector housings are faced to each other and stacked in a vertical block shape, and a holder holding body is inserted into the facing openings, and the holder holding body holds the holder attached to the upper and lower connector housings. The connector according to claim 1, which is configured.