JP5821799B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  The terminal housing chamber provided in the housing of the connector accommodates a terminal having an electric wire connecting portion connected to the end of the electric wire and a terminal connecting portion connected from the electric wire connecting portion to the counterpart terminal.

  In such a terminal, since there is a concern that foreign matters (water, dust, etc.) are mixed into the electric wire connecting portion, for example, a heat-shrinkable tube is attached to the electric wire connecting portion like the terminal described in Patent Document 1. Measures such as installation are taken.

JP 2000-259883 A

  In a connector provided with a plurality of terminals as described in the above-mentioned patent document, it is necessary to attach the heat-shrinkable tube to each terminal and then heat the heat-shrinkable tube to the electric wire connecting portion by heating. There was a problem that it took time and effort.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a connector that prevents foreign matters from entering a connection portion with an electric wire and has improved work efficiency.

In order to solve the above problems, the present invention includes a plurality of terminal accommodating chambers for accommodating the terminals each are provided side by side in the vertical housing, and a plurality stacking formed by the connector, the terminal includes a terminal of the wire A plurality of terminal accommodating chambers having a connected wire connecting portion, a terminal connecting portion connected from the wire connecting portion and connected to a counterpart terminal, and a connecting portion connecting between the wire connecting portion and the terminal connecting portion; And a plurality of protective members that protect the wire connecting portion by being attached to the connecting portion of the terminal, and are temporarily held by the connecting portion of the terminal that is attached to the housing and accommodated in the plurality of terminal accommodating chambers said plurality of protective members are provided with a retainer that can be moved to the holding position, together with the plurality of protective members and the retainer are integrally formed, the Haujin The, by moving the retainer in the vertical direction by stacking and one of the housing and the other of said housing, said movable plurality of protective members are temporarily held to the coupling portion collectively to the holding position and It is the connector provided with the retainer operation part to perform.

In the present invention, the connector housing is provided with a retainer operation portion for moving a retainer capable of moving a plurality of protective members arranged in the terminal connecting portion from the temporary holding state to the holding state. Since the attachment of a plurality of protective members that prevent foreign matters from entering the wire connection portion of the terminal is completed simply by stacking the other housing and the other housing, the working efficiency is improved.
As a result, according to the present invention, it is possible to provide a connector that prevents foreign matters from being mixed into the connecting portion with the electric wire and has improved work efficiency.

The present invention may have the following configurations.
The protective member and the retainer may be integrated. With such a configuration, the number of parts can be reduced.

  The protection member may be made of an elastic material. With such a configuration, waterproofness can be imparted to the electric wire connecting portion. If waterproofness is given, the corrosion by the contact of the dissimilar metal which may generate | occur | produce when the core wire and terminal of an electric wire consist of different metal materials, for example can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the connector which improved the working efficiency while preventing mixing of the foreign material to the connection part with an electric wire can be provided.

Partial sectional view of the connector of Embodiment 1 Partial sectional view showing a state before stacking a plurality of housings

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. 1 and 2, the left side is the front and the right side is the rear. The vertical direction is based on each figure.
The connector 10 according to the first embodiment is a stacked connector 10 in which a plurality of housings 11 are stacked. Although three housings 11 are shown in FIGS. 1 and 2, when distinguishing the three housings 11, they are referred to as a housing 11A, a housing 11B, and a housing 11C in order from the top. In addition, about the housing 11C, only the upper wall part is shown and the terminal 20 and the terminal accommodating chamber 12 are not illustrated, but the configurations of the terminal 20 and the terminal accommodating chamber 12 are the same as those of the other housings 11A and 11B.

  Each housing 11 is provided with two stages of terminal accommodating chambers 12 for accommodating terminals 20 in the vertical direction. Each terminal accommodating chamber 12 is provided with a cantilever lance 14 capable of locking the terminal 20. The lance 14 is provided with a locking projection 14 </ b> A that is locked in the locking hole 22 </ b> B of the terminal 20. A terminal insertion port 13 into which a counterpart terminal can be inserted is formed at the front end of the terminal accommodating chamber 12 (the left end portion of the housing 11).

  The terminal 20 is formed by pressing and bending a metal plate made of, for example, copper or copper alloy. The terminal 20 includes a box-shaped terminal connection portion 21 in which a connection portion with a counterpart terminal is formed, a wire connection portion 24 connected to the terminal of the electric wire 27, and a connection that connects the terminal connection portion 21 and the wire connection portion 24. Part 23. In FIG. 1 and FIG. 2, the surface which continues from the surface (electric wire mounting part 24A) in which the electric wire 27 of the electric wire connection part 24 is mounted is distribute | arranged to the upper side.

  Although not shown in detail in the terminal connection portion 21, an elastic contact piece (not shown, a connection portion with a counterpart terminal) that is electrically connected to the counterpart terminal is formed. A stabilizer 22 </ b> A that functions to guide the insertion operation into the terminal accommodating chamber 12 and the like is formed at the rear end of 21 so as to protrude downward. A locking hole 22 </ b> B that receives and locks the locking protrusion 14 </ b> A of the lance 14 formed in the terminal accommodating chamber 12 is formed on the lower side surface of the terminal connection portion 21.

  As shown in FIG. 1, the upper wall 21 </ b> A of the terminal connection portion 21 continues to the rear connection portion 23. The protective member 16 is fitted into the connecting portion 23. The connecting portion 23 has a groove shape, and a portion disposed on the upper side in the drawing is an upper wall portion 23A, and a portion extending downward from both sides of the upper wall portion 23A is a side wall portion 23B.

  As shown in FIG. 1, an electric wire connecting portion 24 to which the end of the electric wire 27 is connected is connected to the rear of the connecting portion 23. Two sets of barrel pieces 25 and 26 are formed in the electric wire connecting portion 24 so as to extend from the electric wire placing portion 24A on which the electric wire 27 is placed to both sides in the width direction. Of the two sets of barrel pieces 25, 26, the front barrel piece 25 is a wire barrel piece 25 that is crimped to the core wire 28 exposed at the end of the electric wire 27, and the rear barrel piece 26 is made of an insulating resin of the electric wire 27. This is an insulation barrel piece 26 that is pressure-bonded to the covering portion 29 </ b> A covered with the covering material 29.

  The electric wire 27 is obtained by coating a core wire 28 including a metal wire made of a material selected from aluminum, aluminum alloy, copper, and copper alloy with a covering material 29 made of an insulating resin. The core wire 28 is exposed by peeling and removing.

  In the present embodiment, a synthetic resin retainer 17 is attached to the housing 11. The retainer 17 is arranged corresponding to the connecting portion 23. In the present embodiment, in the retainer 17, the two protection members 16 are arranged so as to be lined up and down. In the present embodiment, the retainer 17 and the two protective members 16 are integrated by, for example, two-color molding or an adhesive. Of the two protection members 16, the upper protection member 16A is the first protection member 16A, and the lower protection member 16B is the second protection member 16B.

  Although not shown in detail, the protective member 16 has a portion that fits into the groove-like connecting portion 23. The protection member 16 is made of an elastic material such as rubber and is press-fitted into the connecting portion 23.

  In the present embodiment, the retainer 17 is movable by a protrusion 15 that protrudes upward on the upper wall surface of the housing 11. Specifically, the protrusion 15 of the housing 11 functions as a retainer operation unit 15 that moves the retainer 17 and moves the protection member 16 from the temporary holding state to the holding position when the plurality of housings 11 are stacked.

Next, a method for assembling the connector 10 of this embodiment will be described.
The terminal 20 connected to the terminal of the electric wire 27 is accommodated in the terminal accommodating chamber 12 of each housing 11, and the retainer 17 is attached from below.

  When attaching the retainer 17, the protective member 16 is disposed immediately below the connecting portion 23 of the terminal 20, and a part of the protective member 16 is fitted into the connecting portion 23. Thereby, the protection member 16 will be in the state temporarily held by the connection part 23 (refer FIG. 2).

  When each protection member 16 is temporarily held with respect to the connecting portion 23, a housing receiving portion 18 having a depth dimension Y smaller than the projection dimension X of the retainer operation portion 15 is provided below the second protection member 16B. Is formed.

  Next, the plurality of housings 11 are stacked. Another housing 11 (for example, housing 11A) is stacked with the retainer operating portion 15 facing upward on the housing 11 (for example, housing 11B) disposed with the retainer operating portion 15 facing upward.

  Then, the retainer operation part 15 formed in one housing 11 (for example, housing 11B) fits into the housing receiving part 18 of the housing 11 (for example, housing 11A) arranged immediately above. When the upper housing 11A is further pushed in, the retainer operating portion 15 of the lower housing 11B comes into contact with the second protective member 16B attached to the retainer 17 of the upper housing 11A.

  When the upper housing 11A is further pushed in, the retainer operating portion 15 formed in the lower housing 11B pushes the retainer 17 attached to the upper housing 11A upward. When the retainer 17 is pushed up, the first protection member 16A and the second protection member 16B are fitted to a position where they contact the upper wall portion 23A of the connecting portion 23 of the corresponding terminal 20 (see FIG. 1). In the state shown in FIG. 1, each protection member 16 is in a state of being held in the connecting portion 23 (an example of an example in the holding position). By stacking the housings 11, the connector 10 in which the protection member 16 is held by the retainer 17 is obtained, and the protection member 16 fitted in the connecting portion 23 prevents foreign matter from entering the wire connection portion 24.

Next, the operation and effect of this embodiment will be described.
In the present embodiment, since the housing 11 of the connector 10 is provided with the retainer operating portion 15 that moves the retainer 17 from the temporary holding state to the holding state of the protective member 16 disposed on the connecting portion 23 of the terminal 20. By simply stacking one housing 11 and another housing 11, the installation of the protection member 16 that prevents foreign matter from entering the wire connection portion 24 of the terminal 20 is completed, so that the work efficiency is improved.
As a result, according to the present embodiment, it is possible to provide the connector 10 that prevents foreign matters from being mixed into the connection portion with the electric wire 27 and has improved work efficiency.

  Moreover, according to this embodiment, since the protection member 16 and the retainer 17 are integral, the number of parts can be reduced.

  Furthermore, according to this embodiment, since the protection member 16 is made of an elastic material, the wire connection portion 24 can be provided with waterproofness. If waterproofness is imparted, for example, corrosion due to contact of dissimilar metals that may occur when the core wire 28 of the electric wire 27 and the terminal 20 are made of different metal materials can be prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention. Incidentally, in the above SL embodiment, although the protective member 16 and the retainer 17 is an example are integral, as a reference example, it may be separate from the protective member and the retainer.
(1) In the said embodiment, although the protection member 16 showed the example which consists of elastic materials, such as rubber | gum, the protection member may be made from a synthetic resin.

DESCRIPTION OF SYMBOLS 10 ... Connector 11 ... Housing 12 ... Terminal accommodating chamber 15 ... Retainer operation part 16 ... Protection member 16A ... 1st protection member 16B ... 2nd protection member 17 ... Retainer 18 ... Housing receiving part 20 ... Terminal 21 ... Terminal connection part 23 ... Connecting part 23A ... Upper wall part 24 ... Electric wire connection part 25 ... Wire barrel piece 26 ... Insulation barrel piece 27 ... Electric wire 28 ... Core wire 29A ... Covering part

Claims (3)

A plurality of terminal accommodating chambers for accommodating the terminals each are provided side by side in the vertical housing, and a plurality stacked becomes the connector,
The terminal has a wire connecting portion connected to the end of the wire, a terminal connecting portion connected from the wire connecting portion to the counterpart terminal, and a connecting portion connecting the wire connecting portion and the terminal connecting portion. And
In the plurality of terminal accommodating chambers, a plurality of protective members that protect the wire connecting portion by being attached to the connecting portion of the terminal;
Wherein attached to the housing, a plurality of protective members are temporarily held in the connecting portion of the terminal accommodated in the plurality of terminal accommodating chambers, and a retainer that can be moved to the holding position,
The plurality of protective members and the retainer are integrally formed,
In the housing, the retainer is moved in the vertical direction by stacking one housing and the other housing, and the plurality of protective members temporarily held by the connecting portion are collectively moved to a holding position. A connector provided with a retainer operation section that enables it. The connector according to claim 1, wherein the protective member is made of an elastic member.   The connecting portion has a groove shape that opens upward or downward,
  The plurality of protection members have insertion portions made of elastic members that fit into the connection portion from the opening,
  The connector according to claim 1 or 2, wherein, in the holding position, the fitting portions of the plurality of protection members are press-fitted into the connecting portions of the terminals.

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