JP3679177B2 - connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector that is attached to an assembly such as a rack that houses electrical equipment or the like and can be coupled from a position shifted from a mating connector attached to the assembly such as electrical equipment.
[0002]
[Prior art]
Conventionally, as shown in FIG. 7, for example, a rack 3 that stores a plurality of module-type electric devices 1 and 2 is provided with a large number of storage chambers 4 and 5, for example, in a multistage double row. 4 and 5 are sized to accommodate the electric devices 1 and 2 without swinging. Connectors 6, 7, 8 that are connected to the mating connectors 1 a, 2 a, 2 b attached to the electrical devices 1, 2 are attached to the back walls of the storage chambers 4, 5. 8 is connected to the wire harness 9 for power feeding and signal transmission. The mating connectors 1a, 2a, 2b and the connectors 6, 7, 8 are automatically coupled when the electric devices 1, 2 are pushed into the storage chambers 4, 5.
[0003]
[Problems to be solved by the invention]
However, in the conventional example described above, the mating connectors 1a, 2a, 2b and the connectors 6, 7, 8 are often attached to the electrical devices 1, 2 and the rack 3 with mounting errors. The mating connectors 1a, 2a, 2b and the connectors 6, 7, 8 are not easily coupled by simply pushing the housings 1, 2 into the storage chambers 4, 5, and in particular, a plurality of mating connectors 2a, 2b and the connector 7 are not coupled. , 8 cannot be easily combined at the same time.
[0004]
An object of the present invention is to solve the above-described problems and provide a connector that can be easily coupled even from a position shifted from the counterpart connector.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a connector according to the present invention is a connector for fixing a housing having a tapered portion for guiding a mating connector to the panel from the back side of the panel using a holder. The housing is a cylindrical housing. comprises a body and a flange which is provided around the said housing body, the holder includes a flange housing groove for housing the flange of the housing, the engaging piece with the tips of the plurality of arms protruding toward the front And a flexible holding piece formed toward the rear for holding the housing, and the panel has an inner diameter smaller than an outer diameter of the flange while allowing the housing body to pass through with a gap. It has a housing insertion hole, and a plurality of holder attachment hole for inserting a plurality of engaging pieces of the holder with the said housing body panel In the state of being inserted into the housing insertion hole by inserting the engagement piece of the holder to the holder mounting hole of the panel, sandwiching the flange of the housing between the flanges receiving groove of the holder and the panel, the housing held in a central position of the flexible retaining piece of the holder body abuts biasing the housing body elastically to said panel, and enables moving the housing in the longitudinal horizontal and vertical directions with respect to the panel It is characterized by that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail based on the embodiment shown in FIGS.
FIG. 1 is a cross-sectional view of an embodiment in which a mating connector 11 is also shown, and FIG. 2 is an exploded perspective view excluding the mating connector 11. A housing 12 coupled to the mating connector 11 from the direction A is held on the panel 14 via a separate holder 13. The mating connector 11 is attached to an assembly such as an electric device (not shown), and the panel 14 is a part of an assembly such as a rack for storing the electrical device. The mating connector 11 and the housing 12 have, for example, a rectangular shape, and store connection terminals (not shown) connected to each other. The housing 12 side of the mating connector 11 is a coupling portion 11a coupled to the housing 12, and a fitting hole 11b is provided inside the coupling portion 11a, and a connection terminal is attached to the inner portion thereof. Projections 11 c used for locking with the housing 12 are formed on, for example, four surfaces of the outer periphery of the coupling portion 11 a.
[0007]
A flange portion 22 having a diameter larger than the diameter of the housing insertion hole 14 a is provided on the outer periphery of the housing main body 21, and a front portion 21 a of the housing main body 21 with the flange portion 22 as a boundary serves as a housing insertion hole of the panel 14. 14a is inserted with a gap. In the front portion 21a of the housing 12, a connector insertion hole 23 through which the coupling portion 11a of the mating connector 11 is inserted with a gap B, and a diameter of the coupling portion 11a of the mating connector 11 are reduced in diameter toward the back. Then, a tapered portion 24 to be fitted thereafter and an annular groove 25 into which the projection 11c of the mating connector 11 is fitted are provided in order. The peripheral wall of the taper portion 24 is a guide surface 24a for guiding the mating connector 11, and the rear wall of the taper portion 24 is a locking surface 24b for locking the projection 11c of the mating connector.
[0008]
Inside the annular groove 25, there is provided a terminal holding portion 26 that fits into the fitting hole 11b of the mating connector 11 and holds the connection terminal. The rear portion 21b of the housing main body 21 behind the terminal holding portion 26 is provided. Is provided with a space 27. Further, on the outer periphery of the rear end of the rear portion 21 b of the housing 12, engagement protrusions 28 that engage with a flexible holding piece (to be described later) of the holder 13 are formed on four surfaces, upper and lower and left and right.
[0009]
Here, the gap B cooperates with the gap C, which will be described later, and is designed to absorb the mounting error of the mating connector 11 with respect to the electrical device and the mounting error of the housing 12 with respect to the panel 14. The connecting portion 11a of the mating connector 11 is of a size that can enter the connector insertion hole 23 of the housing 12.
[0010]
On the other hand, the holder 13 includes a disc-shaped holder main body 31, and the holder main body 31 is provided with a panel engaging portion 32 for engaging the holder main body 31 with the panel 14 through the holder mounting hole 14 b of the panel 14. ing. The holder mounting hole 14b and the panel engaging portion 32 are formed, for example, at four locations on the top and bottom and the left and right. The panel engaging portion 32 protrudes from the surface of the holder body 31, that is, the surface on the panel 14 side, enters the holder mounting hole 14 b of the panel 14, and moves to the narrow hole 14 c of the panel 14 when the holder 13 is rotated. And an engagement piece 32b that protrudes outward from the end of the arm portion 32a and engages the surface 14d of the panel 14, that is, the surface on the mating connector 11 side.
[0011]
Further, a housing insertion hole 33 is provided in the center of the holder main body 31 so that the rear portion 21b of the housing 12 is inserted with a gap, and the flange portion 22 of the housing 12 is accommodated on the surface side of the holder main body 31. A flange housing groove 34 is formed. A clearance C is provided between the peripheral wall of the flange housing groove 34 and the peripheral surface of the flange portion 22, and this clearance C moves the housing 12 in the vertical and horizontal directions when the mating connector 11 contacts the taper portion 24. The size is enough to move.
[0012]
The holder main body 31 is provided with a flexible holding piece 35 for urging and holding the housing 12 so as to be movable from the rear part of the peripheral wall of the housing insertion hole 33 toward the inner rear side. The flexible holding pieces 35 are formed, for example, at four locations, upper and lower, and left and right, and their free ends are provided so as to contact the surface of the rear portion 21b of the housing 12 and engage with the engaging protrusions 28, respectively. .
[0013]
When the housing 12 having such a configuration is attached to the panel 14, first, the rear portion 21 b of the housing 12 is inserted into the housing insertion hole 33 of the holder 13. At this time, the engagement protrusion 28 of the housing 12 gets over the flexible holding piece 35 of the holder 13 while bending, and at the same time, the flange 22 is fitted into the flange housing groove 34. Accordingly, the housing 12 is held in the front-rear direction by the distal end portion of the flexible holding piece 35 and the side wall of the flange housing groove 34, and is held in the vertical and horizontal directions by the flexible holding piece 35.
[0014]
Next, the housing 12 is inserted into the housing insertion hole 14a, the panel engaging portion 32 of the holder 13 is inserted from the back of the panel 14 into the holder mounting hole 14b of the panel 14, and then the holder 13 is rotated leftward. The arm 32 a of the panel engaging portion 32 moves to the narrow hole 14 c of the panel 14, and the engaging piece 32 b of the panel engaging portion 32 engages with the surface 14 d of the panel 14. As a result, the holder 13 holds the housing 12 on the panel 14 so as to be movable.
[0015]
In this state, as shown in FIG. 3, the mating connector 11 approaches the housing 12 from a position shifted downward by a distance D, and the end of the coupling portion 11 a of the mating connector 11 is a taper of the housing 12. When contacting the guide surface 24a of the portion 24, the housing 12 moves in the direction E as shown in FIG. When the mating connector 11 is further moved, the terminal holding portion 26 of the housing 12 is fitted into the fitting hole 11b of the mating connector 11 as shown in FIG. 5, and the projection 11c of the mating connector 11 is guided to the guide surface 24a. Is inserted into the annular groove 25.
[0016]
As described above, in the embodiment, the housing 12 is provided with the tapered portion 24 that is reduced in diameter toward the inner portion and guides the mating connector 11, and the holder 13 is provided with the panel engaging portion 32 that engages with the panel 14, and the housing. The holder 13 can easily hold the housing 12 on the panel 14, and the housing 12 can be connected to the mating connector 11. It is possible to reliably bond even from a shifted position.
[0017]
Therefore, for example, even when a plurality of housings 12 are attached to an assembly such as a rack via a holder 13 and the mating connector 11 corresponding to these housings 12 is attached to an assembly such as an electric device. When the attachment body is assembled to the assembly body, the housing 12 can be easily coupled to the mating connector 11 while absorbing attachment errors, and the assembly workability between the assembly body and the assembly body can be improved. .
[0018]
When the assembly is assembled to the assembly, the protrusion 11c of the mating connector 11 cannot get over the tapered portion 24 of the housing 12 due to an error in the coupling direction between the mating connector 11 and the housing 12. It is possible. Therefore, as shown in FIG. 5, when the mating connector 11 and the housing 12 are coupled, if a gap d is formed between the projection 11c of the mating connector 11 and the locking surface 24b of the housing 12, this can be achieved. An error in the coupling direction of the mating connector 11 and the housing 12 can be absorbed by the gap d.
[0019]
Further, the attachment structure of the holder 13 to the panel 14 is not limited to the above-described embodiment, and may be any structure. For example, as shown in the exploded perspective view of FIG. The joint portion 51 can be constituted by an arm portion 51a and a claw portion 51b, and the panel engaging portion 51 can be simply pushed into the holder mounting hole 16b of the panel 16 having the housing insertion hole 16a.
[0020]
【The invention's effect】
As described above, in the connector according to the present invention, the flange of the housing is sandwiched between the panel and the holder, so that an unreasonable force is applied from the counterpart housing and the flexible holding piece as the biasing means is damaged. However, the housing does not fall off the panel.
The mounting a plurality of housing panels, even if the other to assemble attach the mating connector, the housing Ru can be easily coupled with the mating connector while moving back and forth horizontally vertically.
[Brief description of the drawings]
FIG. 1 is a sectional view of an embodiment together with a mating connector.
FIG. 2 is an exploded perspective view of the embodiment.
FIG. 3 is an operation explanatory diagram.
FIG. 4 is an operation explanatory diagram.
FIG. 5 is an operation explanatory diagram.
FIG. 6 is a perspective view of a modified example.
FIG. 7 is a partial cross-sectional view of a conventional example.
[Explanation of symbols]
11 mating connector 12 housing 13 holder 14 panel 23 connector insertion hole 24 taper portion 28 engagement protrusion 31 holder body 32 panel engagement portion 33 housing insertion hole 34 flange housing groove 35 flexible holding piece

Claims (1)

A connector secured to the panel with the holder from the rear side of the panel a housing having a tapered portion for guiding the mating connector, the housing is closed a tubular housing body and a flange which is provided around the said housing body The holder is formed with a flange housing groove for housing the flange of the housing, an engagement piece provided at the front ends of a plurality of arm portions projecting forward, and a rear side for holding the housing. A plurality of engagements of the holder and a housing insertion hole having an inner diameter smaller than the outer diameter of the flange and allowing the panel to be inserted through the housing body with a gap. and a plurality of holder attachment hole for inserting the piece, in a state where the housing body and inserted into the housing insertion hole of the panel, the holder By inserting the engaging pieces in the holder attaching hole of the panel, sandwiching the flange of the housing between the flanges receiving groove of the holder and the panel, the flexible retaining piece of the holder to the housing body in contact with The connector is characterized in that the housing main body is elastically biased with respect to the panel and held at a central position, and the housing can be moved in the front-rear, left-right, up-down directions relative to the panel.

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