JPS6210950Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electrical connector, and in particular to an electrical connector of the type that comprises an insulating housing part in which a contact is disposed and a holding part for an electric wire connected to the contact. .

Conventionally, as this type of electrical connector, a type of connector in which a cord tube is fixed by screwing to a connector body including an insulating housing in which contacts are disposed has been generally used. However, with this type of connector, when connecting and assembling the connector, the cable to be connected is inserted into the cord tube, the contact and the cable lead wire are connected, and then the cord tube is inserted into the connector body. Since the cable must be screwed into the cord tube, the cable inserted into the cord tube is twisted together with the cord tube, resulting in the connection being broken. Furthermore, in this type of conventional electrical connector, after wiring, the threaded portion must be screwed from the side to prevent rotation and fixation between the cord tube and the connector body, and the parts must be screwed together. There were a lot of them, and it took a lot of time to assemble them.

In order to eliminate such drawbacks, the cord tube is divided into two parts to form a pair of divided pieces, and this pair of divided pieces is clamped to the connector body.
Connectors that do not require the cord tube to be screwed into the connector body have been proposed in the past, and one example is disclosed in Japanese Utility Model Publication No. 13742/1983. but,
Although this type of connector has solved the problem of disconnection due to screwing during connection, it has other problems as follows.

(1) When a pair of divided pieces are assembled, only the two screws at the rear end are used to fix these divided pieces.
The front ends of these split pieces are simply fitted into the connector body, and there is no external fixing means, so the adhesion between the split pieces and the connector body is weak, and external vibrations, shocks, etc. It may come loose or come off.

(2) If the diameter of the cable is even slightly larger than the diameter of the ring that holds the cable between the split pieces, a gap will be created at the part where the split pieces are combined, allowing dust and moisture to enter the split piece, causing deterioration of electrical characteristics. . Furthermore, if the diameter of the cable is even slightly smaller than the diameter of the ring portion, it will be difficult to clamp the cable, and if an external force is applied to the cable, the connection portion will break.

(3) As is clear from Figure 3 of the above-mentioned Japanese Utility Model Publication No. 57-13742, if the split piece is clamped to the connector body when the split piece is assembled, the split piece will tilt before the cable is tightened. Because of this, the split piece cannot be clamped onto the connector body, and unless it is held down by hand, it will fall off, making assembly time-consuming.

(4) After the split pieces have been assembled and wired, if you disassemble them due to incorrect wiring, etc., you will have to loosen the two screws at the rear end one by one, making removal cumbersome.

The purpose of the present invention is to solve the problems of conventional electrical connectors as described above, eliminate the need to screw the cord tube into the connector body, and also make it easy to assemble and disassemble and maintain the assembled state reliably. To provide electrical connectors.

According to the present invention, in an electrical connector having an insulating housing in which a contact is disposed and a pair of divided pieces that can be assembled with each other by being sandwiched between the rear ends of the insulated housing, the pair of divided pieces are
Instead of holding the parts together using screws, etc., by placing the rear end of the insulating housing on one of the divided pieces, and placing the other divided piece on top of said one divided piece and sliding it toward the insulating housing. By allowing assembly, the aforementioned objectives are achieved.

Next, the present invention will be described in detail with regard to embodiments of the present invention based on the accompanying drawings.

FIG. 1 is a perspective view showing an assembled state of an electrical connector as a connector plug, which is an embodiment of the present invention. This electrical connector 1 includes a connector body 2 consisting of an insulating housing in which contacts are arranged.
and a pair of divided pieces 3 constituting a holding portion for the electric wire 6. In FIG. 1, reference number 7
1 shows a connector receptacle installed in panel 9 and mating with electrical connector 1 , which connector receptacle 7 has male contacts 8 .

2 is an enlarged perspective view of the electrical connector 1 of FIG. 1 viewed from another direction, that is, from the lower front surface, and FIG. 3 is an exploded perspective view of the arrangement of parts. As clearly shown in Figure 3, the connector body 2
The insulating housing 4 constituting the insulating housing 4 has a plurality of contact array holes 41 penetrating back and forth, and a positioning key 42 is formed on the outer peripheral surface of the insulating housing 4 on the side to be connected to a mating connector, for example, a receptacle connector 7. There is a locking protrusion 43 on the opposite side.
is provided. Furthermore, the surface on which the positioning key 42 is formed is provided with protrusions 44, 44' that are inserted into the slots 32 of the divided piece 3B, which will be described later, and the divided piece is inserted between these protrusions 44 and 44'. A locking protrusion 48 having a slope 45 and a stepped portion 47 as a biased cam surface with which the locking tongue 31 of 3B engages.
is provided. This locking protrusion 48 allows the divided piece 3B to be coupled to and detached from the outer periphery of the insulating housing 4 in the extending direction of the electric wire 6, as will be described later. Further, protrusions 49 are formed on both side walls of the rear end of the insulating housing 4 at positions corresponding to positioning grooves 15 of the divided pieces 3A, which will be described later. This protrusion 49, as described later,
The dividing piece 3A allows the electric wire 6 to be connected to and detached from the outer periphery of the insulating housing 4 from a direction substantially perpendicular to the direction of extension of the electric wire 6, but does not allow the electric wire 6 to be disconnected from the outer circumference in the direction of extension of the electric wire 6. be.

Each contact array hole 41 of the insulating housing 4 has a
In this example, a female contact 5 is inserted, and an electric wire 6 is crimp-connected to the rear end of the contact 5.

As clearly shown in FIG.
0A, wire storage section 11A and wire outlet section 12
A, and positioning grooves 15 are provided on the inside of both side walls 13 and 14 near the insulating housing storage portion 10A.
A connecting portion 18 having a protrusion 16 and a groove 17 is provided in a portion adjacent to the dividing surface of these side walls 13 and 14, and the both side walls create an electric wire outlet 12A. A joint portion 21 having similar protrusions 19 and grooves 20 is provided in a portion adjacent to the dividing surface. The other divided piece 3
As is clear from the inverted state shown in FIG. 4, B has an insulating housing accommodating part 10B, a wire accommodating part 11B, and a wire outlet part 12B, like the divided piece 3A. On the inner side adjacent to the divided surfaces of both side walls 22 and 23 near the housing storage part 10B, a joint part 26 having a protrusion 24, a groove 25 and a step part 27 is provided at a position corresponding to the joint part 18 of the divided piece 3A. A connecting portion 30 consisting of similar protrusions 28 and grooves 29 is provided in portions of both side walls of the wire outlet portion 12B adjacent to the dividing surface. Furthermore, a locking tongue piece 31 that can be elastically bent is formed at the upper front end of the divided piece 3B at a position corresponding to the locking protrusion 48 of the insulating housing 4. Slots 32 are formed on both sides of the locking tongue 31, and a protrusion 3 having a slope 34 and a step 36 is formed inside the tip of the locking tongue 31.
5 is provided. The joints 18 and 21 of the divided piece 3A and the joints 26 and 30 of the divided piece 3B are:
A device that allows the divided pieces 3A and 3B to be joined and separated from each other in a direction substantially parallel to the direction of extension of the electric wire 6, but does not allow them to be separated from each other in a direction perpendicular to the direction of extension of the electric wire 6. It is.

An example of a method for assembling such a connector plug 1 will be described with reference to FIGS. 5 to 7.

(1) First, connect the contact 5 to the electric wire 6 by crimping or the like.

(2) Next, as shown in Fig. 5, insert the contact 5 with the electric wire 6 connected into the contact arrangement hole 41 of the insulating housing 4 (in Fig. 3, only one contact 5 is shown). However, if there are a large number of contacts 5, all the contacts are similarly inserted into each corresponding contact arrangement hole).

(3) Next, as shown in FIG. 5, one of the pair of divided pieces 3A is attached to the outer periphery of the insulating housing 4 from a direction substantially perpendicular to the direction in which the electric wire 6 extends. Allocate against. In this case, the protrusion 49 of the insulating housing 4 is fitted into the positioning groove 15 of the divided piece 3A.

(4) Next, as shown in FIG.
(not shown in FIG. 6 for clarity) to be assembled by sliding along the extension direction. At this time, the protrusions 16, the grooves 17, the grooves 25, and the protrusions 24 engage with each other, and the protrusions 19, the grooves 20, the grooves 29, and the grooves 2
It is important that the arrangement is such that they can engage with each other. From the state shown in Figure 6,
Further, when the divided piece 3B is slid and pushed in, the protrusion 35 of the locking tongue piece 31 comes into contact with the slope 45 of the protrusion 48 of the insulating housing 4.
The locking tongue 31 is elastically biased outward and passes over the projection surface 46, and is locked almost at the same time when the projection step 47 of the insulating housing 4 and the step 36 of the locking tongue 31 coincide. Due to its elastic action, the tongue piece 31 is returned so that the projection step 47 and the step part 36 of the locking tongue piece 31 are engaged with each other, thereby locking each other. At the same time, the wire outlet 1 of the divided piece 3A
Projection 19 and groove 20 on the side of 2A and dividing piece 3
The grooves 29 and the protrusions 28 on the sides of the wire outlet 12B of B engage with each other. The insulating housing 4 has a protrusion 4 in the positioning groove 15 of the divided piece 3A.
9 is fitted and inserted, and the locking tongue piece 31 engages with the locking protrusion 48, so that the completely assembled state is maintained. This state is shown in FIG. 7, and FIGS. 8 and 9 are a sectional view taken along the line AA and BB in FIG. 7, respectively.

FIG. 10 shows a portion of an electrical connector according to another embodiment of the present invention, in which the insulating housing 50 is of similar construction to the insulating housing 4 in the previous embodiment, but The housing 50 has a locking protrusion 4
8, an elastic locking tongue 52 having a protrusion 53 is formed. This insulation housing 5
On both side walls of 0, there are protrusions 51 corresponding to the protrusions 49.
is provided. The divided piece 5B, which corresponds to the divided piece 3B in the above-described embodiment, is formed with an opening 54 for receiving the protrusion 53 of the elastic locking tongue piece 52 of the insulating housing 50. 5B has the same configuration as the divided piece 3B. The assembled state of the electrical connector of this embodiment is shown in FIG. 11, and the divided piece 5A is the divided piece 3A in the previous embodiment.
It may have the same configuration as .

FIG. 12 shows a portion of an electrical connector according to yet another embodiment of the present invention, in which the insulating housing 60 is of similar construction to the insulating housing 4 in the previous embodiment, but An elastic locking tongue piece 62 having a protrusion 63 is formed on the insulating housing 60 instead of the locking protrusion 48 . Protrusions 61 corresponding to the protrusions 49 are provided on both side walls of the insulating housing 60. The divided piece 6B, which corresponds to the divided piece 3B in the above-described embodiment, has a protrusion 63 of the elastic locking tongue piece 62 of the insulating housing 60.
In other respects, the divided piece 6B is formed with an opening 64 for receiving the divided piece 3.
It has the same structure as B. The assembled state of the electrical connector of this embodiment is shown in FIG. 13, and the divided piece 6A may have the same structure as the divided piece 3A in the previous embodiment.

Since the electrical connector of the present invention has the structure described above, it has the following effects.

(1) After attaching one of the divided pieces to the insulating housing,
Complete assembly is completed simply by assembling the other divided piece and the insulating housing, which simplifies the assembly work and improves work efficiency. In this case, the joint parts 18 and 21 of the divided pieces 3A and 3B and the joint part 2
If 6 and 30 are provided only along the front and rear ends of each divided piece as in the embodiment described above, the divided piece 3B can be joined to the divided piece 3A from a certain degree diagonally above. Therefore, even if there is an electric wire 6, it will not get in the way,
Assembly is extremely easy.

(2) The insulating housing 4 and the divided pieces 3A and 3B have a protrusion 49, a groove 15, a joint 18 and a joint 2.
6. Connecting portion 21, connecting portion 30, and locking protrusion 4
8 and the locking tongue piece 31, it is firmly fixed as a whole, so it will not loosen due to external vibrations, shocks, etc.
It never comes off.

(3) Work can be done efficiently because assembly can always be performed from one direction.

(4) Since no screws are used, tools such as drivers are not required, and assembly can be easily performed anywhere.

(5) After assembly is complete, if a misconnection of the connector is discovered and it is necessary to disassemble it, use a simple tool such as a screwdriver to remove the locking protrusion 48 and the locking tongue piece 31.
It can be disassembled with a single touch by simply disengaging it.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an assembled state of an electrical connector as a connector plug which is an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the electrical connector of Fig. 1 viewed from another direction, and Fig. 3 1 is an exploded parts arrangement perspective view of the electrical connector shown in FIG. 1, FIG. 4 is a perspective view showing one of the divided pieces of the electrical connector shown in FIG. 1 in an inverted state, and FIGS. 5, 6, and 7. 1 is a side view showing the assembly process of the electrical connector in FIG.
10 is a perspective view showing a part of an electrical connector as another embodiment of the present invention; FIG. 11 is a partially cutaway side view showing the electrical connector of FIG. 10 in an assembled state; FIG. 12 is a perspective view showing a portion of an electrical connector as yet another embodiment of the present invention;
FIG. 13 is a partially cutaway side view showing the electrical connector of FIG. 12 in an assembled state. 1...Electrical connector, 2...Connector body, 3
A, 3B...Divided piece, 4...Insulating housing, 5
...Contactor, 6...Electric wire, 10A, 10B...Insulating housing storage section, 11A, 11B...Electric wire storage section, 12A, 12B...Electric wire outlet section, 15
... Groove, 18, 21 ... Joint part, 26, 30 ...
Connecting portion, 31...locking tongue piece, 41...contact arrangement hole, 48...locking protrusion, 49...protrusion.

Claims (1)

[Claims for Utility Model Registration] (1) An insulating housing in which a contact is disposed, and a holding part for an electric wire that is assembled to each other so as to be sandwiched around the outer periphery of the insulating housing and connected to the contact. a pair of divided pieces constituting the insulating housing;
One of the pair of divided pieces allows connection and separation from the outer periphery of the insulating housing in a direction substantially perpendicular to the direction of extension of the electric wire, but does not allow separation in the direction of extension of the electric wire. A second locking portion is formed that allows the first locking portion and the other of the pair of divided pieces to be coupled to and detached from the outer periphery of the insulating housing in the extending direction of the electric wire. , the pair of divided pieces are shaped so as to create an insulating housing storage part, a wire storage part, and a wire outlet part when combined with each other, and both side walls adjacent to the dividing surface of each divided piece each has a connecting portion that allows the electric wires to be connected and separated from each other in a direction substantially parallel to the direction in which the electric wires extend, but does not allow separation from each other in a direction perpendicular to the direction in which the electric wires extend. The one divided piece is provided with a locking part that engages with the first locking part of the insulating housing, and the other divided piece is provided with a locking part that engages with the first locking part of the insulating housing. An electrical connector comprising a locking portion that engages with the second locking portion. (2) The electrical connector according to claim 1, wherein the coupling portion of each divided piece is provided only along the vicinity of the front end and the rear end of the divided piece. (3) The first locking portion of the insulating housing is
The electrical connector according to claim 1 or 2, wherein the locking portion of the one divided piece is a groove. (4) The second locking portion of the insulating housing is
Claims (1) or (2) or (2) of the Utility Model Registration Claim, wherein the locking portion of the other divided piece is a stepped portion having a biased cam surface, and the locking portion is an elastic locking tongue. 3)
Electrical connectors listed in section. (5) The second locking portion of the insulating housing is
The electrical connector according to claim (1), (2), or (3), which is an elastic locking tongue piece, and the locking portion of the other divided piece is an opening. . (6) The connecting portion of each of the divided pieces is comprised of protrusions and grooves having mutually complementary shapes. Electrical connectors described in paragraph (4) or (5).