JPH0528698Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rotary insertion/extraction connector including first and second connector elements that are connected or disconnected by relative rotation.

[Conventional technology]

Typical mating/unmating connectors are designed to achieve electrical connection or disconnection by axial mating/unmating. This type of connector is shown in FIG.
A first connector element 1 and a second connector element 3 removably fitted to the first connector element 1
It has

The first connector element 1 includes a first housing 5 made of electrically insulating material and a plurality of electrically conductive first contacts 7, such as pin contacts, incorporated into the first housing 5. have. A groove portion 9 is formed on one side of the first housing 5 . A plurality of first contacts 7 are provided in the groove portion 9.
are in parallel. These first contacts 7
has a contact portion 11 extending from the bottom surface of the groove portion 9 to near the opening, and a terminal portion 13 exposed to the outside from the back surface of the first housing 5. The second connector element 3 is removably fitted into the groove 9 of the first housing 5, as also shown in FIG.

The second connector element 3, see also FIG.
It has a second housing 15 made of electrically insulating material and a plurality of electrically conductive second contacts 21, such as socket contacts, built into the second housing 15. . One end of a cable 17 introduced from the outside of the second housing 15 is connected to the second contact 21 .

The second contact 21 is connected to the first contact 7
A socket part 23 that fits into the contact part 11 of the socket part 23, a connecting part 25 extending from one axial end of this socket part 23 to which the core wire of the cable 17 is connected, and a connecting part 25 further extending from this connecting part 25 to which the cable 17 is connected. It has a holding part 27 for holding.

A contact lance 2 is installed on the bottom of the socket part 23.
8 is formed to protrude. This contact lance 28 has a restoring force, and the second housing 15
The second contact 21 is inserted into the engagement hole 30 formed on the bottom surface of the contact hole 30 to prevent the second contact 21 from moving in the axial direction. In addition, as another example, as shown in FIG. 9, there is a housing lance 32 formed on the upper surface of the second housing 15, which has resilience and extends into the internal space of the second housing 15. . According to the second housing 15, the second contact 21 can be held inside the second housing 15 by locking the rear part of the socket portion 23 of the second contact 21.

The second housing 15 has a through hole 35 formed in the front wall of the socket portion 23 for inserting the first contact 7 therein.

Such a second connector element 3 can be inserted into and removed from the first connector element 1 by being moved in the axial direction of the contact portion 11 of the first contact 7 of the first housing 5, that is, in the connector mating direction. be done.
In this way, the second contact and the contact portion 11 are connected to one another.
It can be connected in a pair-to-one manner.

Returning to FIGS. 6 and 7, the second housing 1
A flexible lock lever 37 is formed on the upper surface of 5. This lock lever 37 has one end connected to the upper surface of the second housing 15 and has restorability. A protrusion 39 is formed on the upper surface of the lock lever 37. The protrusion 39 is connected to the first housing 5
It is locked in a locking hole 41 formed penetrating from the inner surface to the upper surface of the groove portion 9 . By locking the protrusion 39 into the locking hole 41, the first housing 5 and the second housing 15 are locked in a fitted state.

Further, when the lock lever 37 is pushed downward, the protrusion 39 of the first contact 7 and the second contact 21 is released from the locking hole 41, allowing the contact to be pulled out.

Note that the terminal portion 13 of the first contact 7 is formed through a through hole 43 formed in the printed circuit board 42.
It is inserted into the circuit board and connected to the circuit on the board by soldering or the like.

[Problem that the invention seeks to solve]

In the insertion/removal connector having such a configuration, when inserting the second contact 21 into the second housing 15, the second contact 21 may not be inserted to a predetermined position due to carelessness of the operator. In that case, the second housing 15 is attached to the first housing 5.
When fitting, an accident occurs in which the second contact 21 is pushed by the first contact 7 and pushed out in the direction of the cable 17.

In addition, the locking hole 41 and the corresponding protrusion 39
In order to provide the first housing 5 and the second
The space required for the housing 15 is therefore unsuitable for a connector that particularly requires high density.

Therefore, an object of the present invention is to provide a rotary insertion/extraction connector that reliably prevents the second contact from coming off even if the second contact is incompletely inserted.

[Means for solving problems]

According to the present invention, the first connector element includes the first contact incorporated into the first insulator;
and a second connector element in which a second contact is removably incorporated into an insulator, wherein the first insulator extends to face a side surface of the second connector element. a side wall and a horizontal bar extending between the side walls; the second insulator has a groove that fits into the horizontal bar; and the first and second contacts are connected to the horizontal bar. The first and second insulators are brought into contact with and separated from each other by relative rotation about the fulcrum, and the second contact engages with the horizontal bar to prevent the contact from the second housing. A rotary insertion/extraction connector is obtained, which is characterized in that it is prevented from coming off.

〔Example〕

FIG. 1 shows an embodiment of the rotary insertion/extraction connector of the present invention.

Referring to FIGS. 1 and 2, the rotary insertion/removal connector includes a first connector element 51 and a second connector element 53 that is removably inserted into the first connector element 51. There is.

In FIG. 1, a first connector element 51 includes a first housing (first insulator) 55 made of an electrically insulating material, and a plurality of electrically conductive components incorporated in the first housing 55. and a first contact 57. The first contact 57 has a contact portion 59 and a terminal portion (indicated by reference numeral 58 in FIGS. 3 and 4) exposed to the outside of the first housing 55.

First housing 5 of first connector element 51
5 has a pair of side walls (only one of which is shown at 60) extending oppositely and spaced apart from each other. A horizontal bar 62 is in contact between these side walls 60. A first contact 57 is attached to the horizontal bar 62.
A protrusion 64 is formed on the surface facing the. A second connector element 53 is provided on the inner wall side of the pair of side walls 60.
A locking groove 66 for locking is formed.

Also in FIG. 2, the second connector element 53
3 includes a second housing (second insulator) 68 made of an electrically insulating material and a conductive socket contact provided inside the second housing 68. second contact 2
1.

A side surface of the second housing 68 has a locking groove 6 formed in a pair of side walls 60 of the first housing 55.
A locking protrusion 70 that fits into the lock 6 is formed. This second housing 68 is inserted between the pair of side walls 60 of the first housing 55, and is prevented from detaching by fitting the locking protrusion 70 into the locking groove 66.

Further, the second housing 68 is formed with an elongated hole 74 into which the second contact 21 is inserted. These elongated holes 74 are formed in one corner of the second housing 68. Further, the surface of the second housing 68 having the elongated hole 74 has a first
A groove 76 is formed in which the horizontal bar 62 provided in the housing 55 is removably and rotatably fitted.

As clearly shown in FIG. 3, one end of the cable 17 led out of the second housing 68 is connected to the second contact 21. The socket portions 23 of these second contacts 21 have a shape that fits into the contact portions 59 of the first contacts 57 incorporated in the first housing 55. Note that the first and second contacts 21, 57
are in one-to-one contact with each other to obtain an electrical connection.

Further, the second contact 21 is connected to the socket portion 2
3 and an engaging piece 29 adjacent to the socket portion 23. A rounded portion 31 is formed at the tip of the engagement piece 29 . The cable 1 is disposed in the longitudinal direction of the socket portion 23.
A connecting portion 25 that connects the 7 core wires and a holding portion 27 that holds the covering portion of the cable 17 from the outside are formed. This second contact 21 is inserted from the back side of the second housing 68, and the second contact 21 is inserted into the elongated hole 74.
position the socket portion 23 of the contact 21. At this time, the lance 28 of the second contact 21
engages with the engagement hole 78 of the second housing 68, as shown in FIGS. 4 and 5.

Next, the fitting operation of the rotary insertion/extraction connector will be explained with reference to FIGS. 4 and 5.

In FIG. 4, first connector element 51 is mounted on substrate 25. In FIG. At that time, the first contact 5
The terminal portion 58 of No. 7 is inserted into the through hole of the board 25 and connected to the printed circuit. On the other hand, the second connector element 53 is connected to the groove 7 of the second housing 68.
6 is fitted into the horizontal bar 62 of the first housing 55.

Next, the second connector element 53 is rotated counterclockwise about the horizontal bar 62 as a fulcrum. Then, as shown in FIG. 5, the contact portion 23 of the second contact 21 fits into the first contact 57, thereby establishing electrical contact with each other. At this time, the locking protrusion 70 fits into the locking groove 66.

According to this insertion/removal connector, when the groove 76 of the second housing 68 is fitted into the horizontal bar 62, the horizontal bar 62 is inserted into the groove 76 of the second housing 68.
2 engages with the engagement piece 23 of the second contact 21, thereby preventing the second contact 21 from moving in the pulling direction, that is, toward the cable 17 side. Therefore, if the second contact 2
Even if the first lance 28 is disengaged from the engagement hole 78 of the second housing 68, the socket portion 23 of the second contact 21 will be locked to the horizontal bar 62, so the second contact 21 is prevented from coming off.

Further, even if the second contact 21 is not inserted to the predetermined position in the first housing 68, the horizontal bar 62 pushes the rounded portion 31 of the engagement piece 29 of the second contact 21, 2 contacts 21 are pushed in to a predetermined depth.

Note that the protrusion 64 formed on the horizontal bar 62
In the state shown in FIG. 5, by engaging with the second housing 68, the second connector element 53 acts to prevent the second connector element 53 from moving upward as shown by the arrow. Furthermore, when the second housing 68 is rotated, the protrusion 64 moves the second contact 21 toward the second housing 68.
It also has the effect of pushing deeply into the inside of the body.

[Effect of idea]

As explained above, according to the rotary insertion/removal connector of the present invention, the horizontal bar provided in the first insulator of the first connector element fits into the groove provided in the second insulator of the second connector element. However, since movement of the second contact in the withdrawal direction is stopped, the second contact will not come out even if it is incompletely inserted.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of only a portion of the first connector element in an embodiment of the rotary insertion/extraction connector of the present invention, FIG. 2 is a perspective view of only a portion of the second connector element, and FIG. 3 is a perspective view of only a portion of the second connector element. 1 is a perspective view showing the contact used in the rotary insertion/extraction connector in a cable connected state; FIG. 4 is a sectional view showing the insertion/extraction connector in a state before mating; FIG. 5 is a sectional view showing the mating state of the insertion/extraction connector. , Fig. 6 is a perspective view showing the conventional insertion/removal connector in an unmated state, Fig. 7 is a sectional view showing the mated state of the insertion/removal connector of Fig. 6, and Fig. 8 shows the contact inserted into the conventional housing. Sectional view of the state, No. 9
This figure is a sectional view showing a modification of FIG. 8. DESCRIPTION OF SYMBOLS 1...First connector element, 3...Second connector element, 5...First housing, 7...First contact, 15...Second housing, 17...
...Cable, 21...Second contact, 23...
... socket part, 29 ... engagement piece, 37 ... lock lever, 51 ... first connector element, 53 ...
Second connector element, 55...first housing, 60...side wall, 62...horizontal bar, 64...projection, 66...lock groove, 68...second housing, 76...groove, 78...Engagement hole.

Claims (1)

[Scope of utility model registration request] A connector including a first connector element in which a first contact is incorporated in a first insulator, and a second connector element in which a second contact is removably incorporated in a second insulator. , the first insulator has a side wall extending to face a side surface of the second connector element, and a horizontal bar extending between the side walls; The first and second contacts have a groove that fits into the horizontal bar, and the first and second contacts are brought into contact with and separated from each other by relative rotation of the first and second insulators using the horizontal bar as a fulcrum. A rotary insertion/extraction connector, wherein the second contact is engaged with the horizontal bar and is prevented from coming off from the second housing.