JP7010673B2 - connector - Google Patents

Description

The present invention relates to a connector having a holding structure for an electric wire drawn from a connector housing.

As a conventional connector of this type, the one disclosed in Patent Document 1 has been proposed. As shown in FIGS. 10 and 11, the connector 100 includes a terminal 101 to which the electric wire W is connected, a connector housing 110 for accommodating the terminal 101, and an electric wire holding member 120 for holding the electric wire W.

The connector housing 110 is provided with a pair of terminal accommodating chambers 111 for accommodating terminals 101, and a pair of electric wire outlet holes 112 continuous with each terminal accommodating chamber 111 for drawing out the electric wire W to the outside. An opening 113 is formed at the rear end of each wire lead-out hole 112.

The electric wire holding member 120 has a main body portion 121 having a pair of electric wire holding grooves 121a, and a locking portion 122 connected to the main body portion 121. The main body portion 121 is inserted into the electric wire outlet hole 112 through the opening 113 of the connector housing 110. Each electric wire holding groove 121a is formed to have the same width as the diameter dimension width of the electric wire W. The locking portion 122 projects to the outside of the connector housing 110 and is locked to the locking projection 114 of the connector housing 110.

Each electric wire W is sandwiched between the inner surface of the electric wire holding groove 121a in three directions and the inner surface of the electric wire extraction hole 112 in one direction. Since the electric wire W is held so as not to move to the connector housing 110, the coating portion of the electric wire W is worn, an abnormal noise is generated, and the contact of the terminal 101 is caused by the electric wire W moving (vibrating) in the connector housing 110. Prevents wear of the part.

Japanese Unexamined Patent Publication No. 2016-76410

However, the connector 100 of the conventional example has a problem that only the electric wire W having the width dimension of the electric wire holding groove 121a, that is, the electric wire W having a constant electric wire diameter can be held.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a connector capable of holding an electric wire regardless of the diameter of the electric wire.

The present invention has a terminal to which an electric wire is connected, a terminal accommodating chamber for accommodating the terminal, an electric wire outlet hole for drawing the electric wire to the outside, and a connector housing provided with an opening for inserting the terminal and the electric wire. A cover mounted on the connector housing to close the opening, a flexible housing-side wire holding portion provided on the connector housing and protruding into the wire lead-out hole, and a cover provided on the cover. In the mounted state of the connector housing, a flexible cover-side electric wire holding portion protruding into the electric wire lead-out hole is provided, and the housing-side electric wire holding portion is arranged at two locations at intervals in the electric wire extraction direction. Each of the housing-side electric wire holding portions has two support arm portions arranged at intervals in the vertical direction and a holding arm portion connecting the tips of the two support arm portions. In the state where the cover is attached to the connector housing, the cover-side electric wire holding portion is arranged at one position at an intermediate position between the two housing-side electric wire holding portions with respect to the lead-out direction of the electric wire, and the cover-side electric wire is provided. The holding portion has two support arm portions arranged at intervals in the vertical direction and a holding arm portion that connects the tips of the two support arm portions, and the two housing-side electric wire holding portions. And the two holding arm portions of the two housing-side electric wire holding portions and one holding arm portion of the one cover-side electric wire holding portion in a state where the one cover-side electric wire holding portion is bent and deformed . It is a connector characterized by sandwiching an electric wire having an electric wire diameter and holding the electric wire.

According to the present invention, both the flexible housing-side wire holding portion and the cover-side wire holding portion are bent and deformed to sandwich the wire and hold the wire, so that the wire diameter can be held by the bending deformation. If so, the wire can be held regardless of the wire diameter.

An embodiment of the present invention is shown, and is a perspective view of a connector. An embodiment of the present invention is shown, and is a cross-sectional perspective view of a connector. An embodiment of the present invention is shown, and is a perspective view of a main part of a portion D in FIG. An embodiment of the present invention is shown, and is a perspective view of a connector housing with a cover in an open position. An embodiment of the present invention is shown, and is a view taken along the line A of FIG. An embodiment of the present invention is shown, where (a) is a front view of a connector housing with a cover in a closed position, and (b) is a sectional view taken along line BB of (a). It is a perspective view which shows one Embodiment of this invention and shows the assembly process of a connector. It is a perspective view which shows one Embodiment of this invention and shows the assembly process of a connector. An embodiment of the present invention is shown, where (a) is a cross-sectional view showing a state in which an electric wire having a thin electric wire diameter is held (a diagram corresponding to FIG. 6 (b)), and (b) is an electric wire having a large electric wire diameter. It is sectional drawing which shows the state (the figure corresponding to FIG. 6B). A conventional example is shown, and it is sectional drawing of a connector. A conventional example is shown, and it is a cross-sectional view taken along the line CC of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 9 show an embodiment of the present invention. As shown in FIGS. 1 and 2, the connector 1 includes a terminal 2 to which the terminal of the electric wire W is connected, a connector housing 10 in which the terminal 2 is housed, and a cover 20 mounted on the connector housing 10. There is.

The electric wire W is formed of a core wire w1 in which a large number of strands (not marked) are twisted together, and an insulating covering portion w2 that covers the outer periphery of the core wire w1. In the terminal portion of the electric wire W, the covering portion w2 is stripped off and the core wire w1 is exposed.

The terminal 2 includes a terminal connection portion 3 electrically connected to a mating terminal (not shown) and a wire crimping portion 4 integrally provided with the terminal connection portion 3. A flat frame body 3a (shown in FIG. 7) containing a leaf spring (not shown) is provided on the tip end side of the terminal connection portion 3. The flat frame body 3a is arranged at a position facing the connector fitting port of the connector housing 10. The wire crimping portion 4 extends in a substantially orthogonal direction from the rear end side portion of the terminal connecting portion 3. That is, the terminal 2 has an L-shaped shape, and the connection direction WY1 with the mating terminal and the lead-out direction WY2 of the electric wire W are formed in a direction substantially at a right angle.

As shown in detail in FIGS. 4 and 5, the connector housing 10 has a housing main body 11 and a housing protrusion 12 protruding in a direction perpendicular to the rear end portion of the housing main body 11. A terminal accommodating chamber 13 is formed in the housing main body 11 and the housing protrusion 12. The terminal accommodating chamber 13 on the housing body 11 side and the terminal accommodating chamber 13 on the housing protrusion 12 side are arranged in a substantially right-angled direction. That is, the terminal accommodating chamber 13 is formed in an L shape. The terminal connection portion 3 of the terminal 2 is housed in the terminal storage chamber 13 on the housing body 11 side. The wire crimping portion 4 of the terminal 2 is accommodated in the terminal accommodating chamber 13 on the housing protrusion 12 side. A wire lead-out hole 14 is formed in the housing protrusion 12 so as to be continuous with the terminal accommodating chamber 13. An opening 15 is formed on the rear surface side of the terminal accommodating chamber 13 and the electric wire lead-out hole 14. A pair of lock claws 16 are provided on the outer surfaces of the housing main body 11 and the housing protrusion 12 on the rear surface side, respectively.

As shown in detail in FIGS. 2 and 3, the housing protrusion 12 is provided with housing-side wire holding portions 17 projecting into the wire lead-out hole 14 at two locations. The two housing-side electric wire holding portions 17 are arranged at intervals in the lead-out direction WY2 of the electric wire. Each housing-side electric wire holding portion 17 has two support arm portions 17a arranged at intervals in the vertical direction and a holding arm portion 17b connecting the tips of the two support arm portions 17a.

As shown in detail in FIGS. 4 and 5, the cover 20 is connected to the connector housing 10 via the hinge portion 30. The cover 20 is provided with a plurality of elastic locking frames 21. The cover 20 is attached to the connector housing 10 by locking each elastic locking frame 21 to the lock claw 16 of the connector housing 10. The cover 20 closes the opening 15 of the connector housing 10 in the mounted state. The cover 20 can be positioned to release the opening 15 of the connector housing 10 by releasing the locking of the elastic locking frame 21 to the lock claw 16.

A cover-side electric wire holding portion 22 is provided at one location on the inner surface of the cover 20. The cover-side wire holding portion 22 projects into the wire lead-out hole 14 when the cover 20 is mounted on the connector housing 10. Similar to the housing-side electric wire holding portion 17, the cover-side electric wire holding portion 22 is a holding arm that connects two support arm portions 22a arranged at intervals in the vertical direction and the tips of the two support arm portions 22a. It has a portion 22b.

In the state where the cover 20 is attached to the connector housing 10, the cover-side electric wire holding portion 22 is arranged at one position at an intermediate position between the two housing-side electric wire holding portions 17 with respect to the drawing direction WY2 of the electric wire W. In other words, the housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 are alternately arranged in the drawing direction WY2 of the electric wire W, and are arranged at three places in total. The housing-side wire holding portion 17 and the cover-side wire holding portion 22 are formed to have a height dimension that is half the width dimension D (shown in FIG. 6B) of the wire lead-out hole 14.

Next, the procedure for assembling the connector 1 will be described. As shown in FIG. 7, the cover 20 is set to the open position. Then, the terminal 2 is inserted into the terminal accommodating chamber 13 through the opening 15 of the connector housing 10, and the electric wire W is inserted into the electric wire outlet hole 14.

Next, as shown in FIG. 8, the cover 20 at the release position is attached to the connector housing 10 to close the opening 15 (see FIG. 1).

In the process of moving the cover 20 to the closed position, one cover-side electric wire holding portion 22 gradually approaches the two housing-side electric wire holding portions 17, and the housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 gradually approach each other. Will bend and deform with each other so as to wrap the electric wire W, and sandwich the electric wire W.

Here, as shown in FIG. 9A, if the electric wire W has a small electric wire diameter, the housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 are mainly both holding arm portions 17b and 22b. Holds the electric wire W by bending and deforming in the direction of denting the central portion.

Further, as shown in FIG. 9B, if the electric wire W has a large electric wire diameter, the housing side electric wire holding portion 17 and the cover side electric wire holding portion 22 have both holding arm portions 17b and 22b at the center. The electric wire W is sandwiched by bending and deforming in the direction of denting, and by bending and deforming the pair of support arm portions 17a and 22a in the direction of inflating the central portion (direction in which they are separated from each other).

As described above, in the connector 1, the connector housing 10 is provided with the flexible housing-side electric wire holding portion 17, the cover 20 is provided with the flexible cover-side electric wire holding portion 22, and the housing-side electric wire holding portion 17 is provided. Since the electric wire holding portion 22 on the cover side sandwiches and deforms the electric wire W to hold the electric wire W, the electric wire W can be held regardless of the electric wire diameter as long as it is within the range of the electric wire diameter that can be sandwiched by the bending deformation. As a result, for electric wires W having different electric wire diameters, the electric wire W moves (vibrates) in the connector housing 10, causing wear of the covering portion w2 of the electric wire W, generation of abnormal noise, and terminal connection portion 3 of the terminal 2. It is possible to prevent wear of the contact part.

The cover 20 is connected to the connector housing 10 via a hinge portion 30. Therefore, the number of parts is reduced. Since the cover 20 is connected to the connector housing 10, workability when the cover 20 is closed / released is good.

The housing-side wire holding portion 17 and the cover-side wire holding portion 22 are holding arms that connect the two support arm portions 17a and 22a arranged at intervals and the tips of the two support arm portions 17a and 22a. It has parts 17b and 22b. Therefore, the electric wire W can be sandwiched by the bending deformation of the holding arm portions 17b and 22b, and the electric wire W can be sandwiched by the bending deformation of both the holding arm portions 17b and 22b and the pair of support arm portions 17a and 22a. A wide range of wire diameters can be taken. The housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 may be configured so as to be able to sandwich the electric wire W by bending and deforming both of them. The housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 are formed in the same form, but may have different forms.

The housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 are alternately arranged in the drawing direction W2 of the electric wire W, and are arranged at three places in total. Therefore, since the electric wire W is sandwiched while applying an external force that bends the electric wire W (bending in the direction orthogonal to the longitudinal direction of the electric wire W), it is possible to prevent the electric wire tensile force from the outside from directly acting on the terminal 2. The housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 may be arranged at four or more locations in total. If the housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 have the same flexibility, the larger the number, the better the holding force of the electric wire W, and the electric wire tension from the outside. It is possible to effectively prevent the force from acting on the terminal 2. The housing-side electric wire holding portion 17 and the cover-side electric wire holding portion 22 may be arranged at the same position in the lead-out direction WY2 of the electric wire W.

Both the terminal 2 and the terminal accommodating chamber 13 of the connector housing 10 have an L-shaped shape, and the connection direction WY1 with the mating terminal and the lead-out direction WY2 of the electric wire W are formed in a substantially right-angled direction (L-shaped direction). There is.

(Modification example)
In the above embodiment, the cover 20 is connected to the connector housing 10 via the hinge portion 30, but may be a single component without being connected to the connector housing 10.

In the above embodiment, the direction (L-shaped direction) of the wire W with respect to the connection direction WY1 with the mating terminal is the left-right direction with respect to the direction of the connector housing 10 in FIG. (For example, vertical direction, diagonal direction) may be used.

1 Connector 2 Terminals 10 Connector Housing 13 Terminal Storage Room 14 Wire Drawer Hole 15 Opening 17 Housing Side Wire Holding 17a Support Arm 17b Holding Arm 22 Cover Side Wire Holding 22a Support Arm 22b Holding Arm 30 Hinge W Electrical wire

Claims (3)

The terminal to which the electric wire is connected and
A connector housing having a terminal accommodating chamber for accommodating the terminal, an electric wire outlet hole for drawing out the electric wire, and an opening for inserting the terminal and the electric wire.
A cover attached to the connector housing and closing the opening,
A flexible housing-side wire holding portion provided in the connector housing and protruding into the wire lead-out hole,
A flexible cover-side wire holding portion provided on the cover and protruding into the wire lead-out hole when mounted on the connector housing is provided.
The housing-side electric wire holding portions are arranged at two locations at intervals in the lead-out direction of the electric wire, and the housing-side electric wire holding portions are provided with two support arm portions arranged at intervals in the vertical direction. It has a holding arm portion that connects the tips of the two support arm portions.
In the state where the cover is attached to the connector housing, the cover-side electric wire holding portion is arranged at one position at an intermediate position between the two housing-side electric wire holding portions with respect to the drawing direction of the electric wire, and the cover side. The electric wire holding portion has two support arm portions arranged at intervals in the vertical direction and a holding arm portion connecting the tips of the two support arm portions.
Two holding arm portions of the two housing-side wire holding portions and one cover-side electric wire holding portion in a state where the two housing-side electric wire holding portions and the one cover-side electric wire holding portion are bent and deformed. A connector characterized in that an electric wire having a different electric wire diameter is sandwiched between one holding arm portion and the electric wire is held. The connector according to claim 1.
The cover is a connector characterized in that it is connected to the connector housing via a hinge portion. The connector according to claim 1 or 2.
A connector characterized in that the connection direction with the mating terminal and the lead-out direction of the electric wire are formed at a substantially right angle.

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