This application is a continuation of PCT application No. PCT/JP2011/079656, which was filed on Dec. 21, 2011 based on Japanese Patent Application (No. 2010-285093) filed on Dec. 21, 2010, the contents of which are incorporated herein by reference. Also, all the references cited herein are incorporated as a whole.
1. Field of the Invention
The present invention relates to a slip-out preventing connector, and more particularly to a connector having such a slip-out preventing function that even when a terminal is inserted, from a back side, into a PCB (a printed circuit board) and a JC (Joint connector) into which the terminal cannot be inserted from a front (an insert opening into which a mate side connector is inserted) side in view of its structure, a terminal holding force or an attaching property is not deteriorated.
2. Description of the Related Art
In an ordinary PCB (a printed circuit board) terminal, a male terminal is inserted from a front side (for instance, see JP-A-2009-146659).
Reasons thereof are described below.
(1) A resin is not desired to adhere to a contact part.
(2) An accuracy of a male and female contact point is more important than that of a lead to be soldered.
(3) When a tab slips out during an insertion of a female connector or when a wire harness is pulled after male and female connectors are fitted to each other, a holding force of a male housing and a male terminal is operated.
The connector housing 100 in
The terminal 200 has an insert part of a form corresponding to the terminal insert hole. When the terminal 200 is inserted into the terminal insert hole, since a sheared surface is sufficiently ensured in a direction A, the terminal is hardly pulled out in the direction A. However, a press-in margin is merely held in a direction B.
Accordingly, a male terminal is ordinarily inserted from the front side.
<Problem When Terminal Cannot be Inserted from Front Side>
Owing to the above-described reason, it is advantageous for the connector to attach the terminal from the front side. However, when the form of the terminal is larger in an opposite side to the contact part than the contact part, the terminal cannot be attached from the front side. Accordingly, the connector housing is inverted to insert the terminal from an opposite side to the front. In this case, as described in the reason of the above-described (3), since the terminal is pulled in the same side as a direction in which the terminal is inserted to the connector housing, a problem arises that the terminal is liable to slip out.
The present invention is devised to solve the above-described problem and it is an object of the present invention to provide a slip-out preventing connector having a connector housing and a terminal used therein which can improve a holding force of a terminal and an overhauling property even in a connector of a type that the terminal is inserted into the connector housing from an opposite side to an insert hole to which a mate side connector terminal is inserted.
The above-described object is achieved by below-described structures.
(1) A slip-out preventing connector includes a connector housing having an insert hole to which a mate side connector terminal is inserted and a rear surface opening as a terminal insert hole to which a terminal of its own is inserted and the terminal inserted from the rear surface opening and held therein. In the connector housing, a side wall opening is formed which is continuous to an intermediate part in an upper half of one side wall of the connector housing from the rear surface opening. A tapered protrusion is provided to stand upward from a lower side opening end face of the side wall opening. In a part of the terminal opposed to the tapered protrusion in the one side wall at a position where the terminal is held in the connector housing, a tapered engaging recessed part is formed which the tapered protrusion enters. In the other side wall opposite to the one side wall in the connector housing, a tapered hole is formed. In a part of the terminal opposed to the tapered hole of the other side wall at a position where the terminal is held in the connector housing, a tapered protrusion is formed which enters the tapered hole. The terminal slides in a direction at right angles to an inserting direction of the terminal due to an operation of the tapers to be held in the connector housing.
(2) In a slip-out preventing connector of the structure of the above-described (1), in the connector housing, a guide protruding part which extends in the inner space of the connector housing is formed from the one side wall having the side wall opening formed. The guide protruding part comes into contact with a pin of the terminal, and the tapered protrusion of the terminal comes into contact with an inner wall of the connector housing, so that the terminal is regulated and inserted.
According to the structure of the above-described (1), even in the connector of a type that the terminal is inserted from the opposite side to the insert hole to which the mate side connector terminal is inserted, since the terminal cannot be pulled out, a holding force can be improved. Further, in overhauling, since the connector can be simply overhauled by using a jig, an overhauling property can be improved.
According to the structure of the above-described (2), the terminal can be smoothly inserted into the connector housing.
Now, a slip-out preventing connector which is a connector of a type that a terminal is inserted from an opposite side to an insert hole to which a mate side connector terminal is inserted, and can improve a holding force of the terminal and an overhauling property will be described below by referring to the drawings.
<Structure of Slip-Out Preventing Connector according to the Present Exemplary Embodiment>
In
Now, the connector housing 10 and the terminal 20 according to the one exemplary embodiment of the present invention will be described below.
<Structure of Connector Housing 10 according to the Present Exemplary Embodiment>
The connector housing 10 according to the present exemplary embodiment is a resin molded product having the front 10L (see
Features of the connector housing 10 are described below.
(1) A tapered hole 10K (
(2) A tapered protrusion 10M (
<Tapered Hole 10K according to the Present Exemplary Embodiment>
In
<Tapered Protrusion 10M according to the Present Exemplary Embodiment>
In
Further, in the front 10L side from the tapered protrusion 10M of the opposite side wall 10S2, a tab side (a guide protruding part) 10T (see
<Structure of Terminal 20 according to the Present Exemplary Embodiment>
The terminal 20 according to the present exemplary embodiment is a metal plate including a rectangular base part 20B and two male terminals 20P which are integrally extended toward the mate side connector terminal from the base part 20B and inserted into the mate side connecter terminal (a female). In the terminal 20, the male terminals 20P are inserted into the inner space of the connector housing from the rear surface opening 10R (see
Features of the terminal 20 are described below.
(1) In a side (part) of the rectangular base part 20B opposed to the tapered hole 10K of the one side wall 10S1 (see
(2) In a side (part) of the rectangular base part 20B opposed to the tapered protrusion 10M of the opposite side wall 10S2 (see
<Tapered Protrusion 20K according to the Present Exemplary Embodiment>
In
<Tapered Engaging Recessed Part 20M according to the Present Exemplary Embodiment>
In
A procedure will be described for assembling the terminal 20 according to the present exemplary embodiment to the connector housing 10 according to the present exemplary embodiment.
(1) Initially, the two male terminals 20P of the terminal 20 are inserted into the inner space of the connector housing 10 from the rear surface opening 10R (see
(2) Further, an insertion is continued.
(3) Further, when the insertion is continued, a crossbar 20N (see
(4) When the tapered engaging recessed part 20M reaches a position where the tapered engaging recessed part 20M is opposed to the tapered protrusion 10M, the protruding taper T2 of the tapered engaging recessed part 20M located in an upper part slides downward on the protruding taper T2 of the tapered protrusion 10M located in a lower part into the connector housing 10 in the inserting direction and at right angles to the inserting direction. Thus, the tapered engaging recessed part 20M is engaged with the tapered protrusion 10M.
At the same time, the protruding taper T1 of the tapered protrusion 20K in the one side wall 10S1 side also passes through (slides) below the protruding taper T1 of the tapered hole 10K of the connector housing 10 so as to slide outside the connector housing 10 at right angles to the inserting direction. Thus, the tapered protrusion 20K is engaged with the tapered hole 10K.
Under this state, since the terminal 20 and the connector housing 10 are provided with sufficient sheared surfaces, the terminal and the connector housing are not disengaged from each other by a tension of a female connector housing or an insertion of a female terminal.
When the terminal 20 is desired to be pulled out (desired to release a holding state) from the connector housing 10, a jig is inserted into the tapered hole 10K to push the terminal 20 so as to raise the terminal 20. Thus, the terminal 20 gets on the tapers T1 and T2 in an inner part to release the held state, so that the terminal can be easily pulled out.
As described above, according to the present exemplary embodiment, in the one side of the base part of the terminal, the tapered protrusion is formed which enters the tapered hole in the side wall of the connector housing. In the opposite side of the base part of the terminal, the tapered engaging recessed part is formed which is engaged with the tapered protrusion in the opposite side wall of the connector housing. Thus, since the terminal and the connector housing are provided with the sufficient sheared surfaces, the terminal and the connector housing are not disengaged from each other by the tension of the female connector housing or the insertion of the female terminal.
Further, when the terminal is pulled out form the connector housing, the jig is inserted into the tapered hole to push the terminal so as be raised. Thus, the terminal gets on the inner tapers to release the held state, so that the terminal can be easily pulled out. As described above, even in the connector of a type that the terminal is inserted from the opposite side to the insert hole to which the mate side connector terminal is inserted, since the terminal cannot be pulled out, a holding force can be improved. Further, in overhauling, since the connector can be simply overhauled by using the jig, an overhauling property can be improved.
The above-described exemplary embodiment merely shows a representative form of the present invention and the present invention is not limited to the exemplary embodiment. Namely, the present invention may be variously modified and embodied within a range that does not deviate from the gist of the present invention.
According to the slip-out preventing connector of the present invention, even in the connector of a type that the terminal is inserted into the connector housing from the opposite side to the insert hole to which the mate side connector terminal is inserted, the holding force of the terminal can be improved and the overhauling property can be improved.
Number | Date | Country | Kind |
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2010-285093 | Dec 2010 | JP | national |
Number | Date | Country | |
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Parent | PCT/JP2011/079656 | Dec 2011 | US |
Child | 13919719 | US |