JPH0321015Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an electrical connector configured so that electrical contacts can be easily inserted and removed as necessary.

[Background of the idea]

An example of this kind of electrical connector that has been previously developed is Utility Model Application No. 1983-25777. This is shown in FIGS. 2 and 3, and includes a male connector housing 20a and a female connector housing 20b equipped with an electric contact locking mechanism.
and the connector housing 2 of both of them.
Female contact 21a attached to 0a, 20b
Since the male connector housing 20a and the female connector housing 20b are equipped with substantially the same type of contact locking mechanism, the following describes the contact state of one of the female connector housings 20a and 21b. The structure of the connector housing 20b will be mainly explained.

As shown in FIG. 2, the female connector housing 20b has a plurality of male contacts 21b on one side thereof.
The partition walls 23 forming a plurality of contact insertion holes 22 into which the contacts are inserted are formed in a lattice shape, and are connected to the upper and lower edges of the partition walls 23 in three directions. Also, the female connector housing 20
The other side portion b is formed at the fitting insertion portion 25 of the male connector 20a. Also, the female connector 20
A pair of upper and lower flaps 27 are formed above and below the central part of b, and are protruded in a wing-like manner via a thin hinge 26, and the flaps 27 are formed so as to be able to lie down toward the contact insertion hole 22 side. There is. At the edges of both the upper and lower flaps 27, when the flaps 27 are laid down toward the contact insertion hole 22,
A locking claw piece 28b is formed to be locked with a locking portion 28a provided on the edge of the flap 2.
7 is provided with a protruding engaging portion 29 that fits into each of the contact insertion holes 22.
A shoulder portion 30 is formed which can be locked with a locking portion 21b' provided on a male contact 21b inserted into the male contact 21b. Further, a locking step 31 extending in the axial direction is formed at the base of the appropriate locking portion 29, and a terminal insertion hole into which the locking step 31 provided with the locking step 31 is fitted. A locking side 32 that is engaged with the locking step portion 31 is formed on the edge of the locking member 22 .

Then, the upright flap 27 is turned down, and the locking claw piece 28b is locked to the locking portion 28a provided on the crosspiece 24, and the locking step provided on the base of the engaging portion 29 is placed. By locking the portion 31 and the locking side 32 provided on the partition wall 23, the flap 27 is fixed without opening. At this time, the shoulder portion 30 formed on the flap 27 penetrates into the opening 37 provided in the housing 20b, and the locking portion 2 of the female contact 21a is inserted into the opening 37 provided in the housing 20b.
1a', the female contact 21a is prevented from being pulled out, and a pressure lance 33 is fitted into the recess 35 provided in the female contact 21a, so that the female contact 21a is prevented from making contact. Child insertion hole 22
It is press-fixed to the wall surface 23 of.

Incidentally, reference numeral 28c is an engaging portion provided on the housing 20, with which the upper surface of the shoulder portion 30 is engaged.

However, in such a conventional electrical connector, when the electrical contact 21a or 21b is pulled in the direction of the arrow in FIG.
Alternatively, the shoulder portion 30 that engages with the electrical contact 21b is bent (displaced) as shown by the broken line in the same figure, and therefore the electric contact 2
1a or 21b is misaligned, and the electrical contact 21
There was a problem that the mutual electrical connection between a and 21b was uncertain.

[Purpose of invention]

The present invention has been made by focusing on such conventional problems, and there is a locking surface of the shoulder 30 on which the electric contact 21a or 21b is locked, so that the electric contact 21a or 21b can be separated from the locking surface. By providing an inclined surface to prevent the electric contact 21a from
Another object of the present invention is to provide an electrical connector configured so that the shoulder portion 30 will not be displaced and the locking force of the electrical contact will not be released even if the shoulder portion 21b is pulled.

[Example of idea]

The present invention will be explained in detail below based on the embodiment shown in FIG. , the explanation of the same structural parts will be omitted.

This embodiment is characterized by a contact engagement shoulder 30 protruding from the flap 27.
The other structure is the same as the conventional example. That is, in the contact engagement shoulder 30 of this embodiment, an inclined surface 30' is provided on the engagement surface of the contact engagement shoulder 30 with the electric contact 21a or 21b. 30' is formed as an inclined surface on the side surface of the contact engagement shoulder portion 30, which extends forward (in the insertion direction of the electrical contact 21a or 21b) as it goes upward with respect to the vertical line. It is. Therefore, by providing this inclined surface 30', the electric contact 21a or 21b that is abutted and locked on this inclined surface
If an unreasonable tensile force is applied in the direction of the arrow, a reaction force in the direction A is applied to the shoulder 30, and as a result, the locking force between the shoulder 30 and the electrical contact 21a or 21b is released. No, electric contact 21a or 21
This has the effect of effectively ensuring the positioning of point b and electrical contact. In the above embodiment, flap 2
7 is shown integrally connected to the housing 20a or 20b by the hinge 26, but it does not necessarily have to be connected by the hinge 26,
It goes without saying that the flap 27 may be separate from the housing 27.

[Summary of the idea]

As described above, the present invention includes a housing 20a or 20b made of electrically insulating material and adapted to receive and hold a plurality of electrical contacts 21a or 21b arranged in a row, each electrical contactor 21
a or 21b is the housing 20a or 20b
Movement in one axial direction is prevented by an inner shoulder 36, and movement in the other axial direction is prevented by a flap 27 assembled to the housing 20a or 20b. , the flap 27 is in the open position in which the electrical contact 21a or 21b can be inserted into or withdrawn from the housing 20a or 20b, and a portion of the flap 27 is
b and a closed position in which the electrical contact 21a or 21b is pressed towards the associated shoulder 36; , an opening 37 is provided in the housing 20a or 20b, which corresponds to the electrical contact 21a or 21b, and through which the contact engaging shoulder 30 passes when the flap 27 is in the closed position. The front edge of the opening 37 is provided with an engaging portion 28c with which the upper surface of the contact engaging shoulder 30 engages, and the rear edge is provided with a locking portion 28a with which the rear end of the flap 27 is locked. Since both front and rear ends of the flap are locked to the housing, the flap does not fall off from the housing, and as a result, the electrical contact does not come out of the housing via the contact engaging shoulder. In addition, even if an unreasonable external force is applied to the electric contact in the pulling direction, the shoulder portion 30 that locks the electric contact does not bend, and as a result, The electrical contacts are stably locked in the connector housing, and have the effect of reliably maintaining electrical contact between the electrical contacts.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the electrical connector according to the present invention, and FIG. 2 is a sectional view of a conventional example thereof.
FIG. 3 is a perspective view of a conventional example. 20a...male connector housing, 20b...
...Female connector housing, 21a... Female contact, 21b... Male contact, 22... Contact insertion hole, 23... Partition wall, 24... Crosspiece, 25... Fitting insertion part, 26... Thin wall Hinge, 27...flap,
28a...Locking portion, 28b...Latching claw piece, 29...
...Engagement part, 30...Shoulder part, 30'...Slope, 31
... Locking step portion, 32 ... Locking side, 33 ... Elastic lance, 34 ... Connecting section, 35 ... Recess, 36 ...
Positioning shoulder, 37...opening.

Claims (1)

[Scope of utility model registration request] A plurality of electric contacts 21a or 2 arranged in a row
1b, each said electrical contact 21a or 21b being secured in one axial direction by a shoulder 36 in said housing 20a or 20b. Along with being prevented from moving to
A flap 27 attached to the housing 20a or 20b prevents the other from moving in the axial direction. an open position in which the flap 27 can be inserted or withdrawn; and a closed position in which a portion of the flap 27 engages the electrical contact 21a or 21b and presses it towards the associated shoulder 36. a plurality of contact engaging shoulders 30 on said flap 27;
These are provided in correspondence with the electrical contact 21a or 21b, so that when the flap 27 is in the open position, the contact engaging shoulder 30 is separated from the electrical contact 21a or 21b, and the flap 2
The housing 20 has an opening 37 through which the contact engaging shoulder 30 passes when the contact engagement shoulder 30 is in the closed position.
In the electrical connector, the contact engaging shoulder portion 30 is provided at the front edge of the opening 37 so that the contact engaging shoulder portion 30 is provided at the front edge of the opening 37 to engage with the electrical contact 21a or 21b, respectively. An engaging portion 28c with which the upper surface engages, and a locking portion 28a with which the rear end of the flap 27 locks are provided on the rear edge, and the electric contact 21a or 21b of the contact engaging shoulder portion 30 The electrical contact 21 is placed on the engaging surface of the electrical contact 21
An electrical connector characterized in that an inclined surface 30' is provided to prevent the contact engaging shoulder portion 30 from deflecting when the contact engaging shoulder portion a or 21b is moved in a direction in which the contact engaging shoulder portion 30 is pressed into contact with the shoulder portion 30.