JP2658662B2 - Plug-in unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug-in unit used for communication equipment.

[0002]

2. Description of the Related Art As is well known, a plug-in unit is used as a means for implementing mounting efficiency of communication equipment, rationalizing internal connections, and realizing parallel processing of assembly. The plug-in unit has a hollow unit and at least one plate-shaped functional package inserted into the unit. At least one unit connector is provided on the back of the unit. The function package is inserted from the front side of the unit. Guide grooves are provided on the upper and lower surfaces of the unit to guide the insertion of the function package. The width of the guide groove is appropriately larger than the thickness of the functional package. Also, the dimension between the upper and lower guide grooves is appropriately larger than the height dimension of the functional package. With such a structure, when the function package slides along the guide groove, an appropriate play is given.

A package connector that can be electrically connected to a unit connector is mounted at the tip of the function package. When the insertion of the functional package from the front of the unit is completed, the fitting between the unit connector and the package connector is completed.

Hereinafter, a conventional plug-in unit will be described with reference to FIG. The unit connector 4 'is fixed to the back of the unit 1'. The package connector 5 'is fixed to the tip of the function package 2'.
The fitting center shafts 4'a and 5'a of the unit connector 4 'and the package connector 5' are slightly shifted due to manufacturing variations. Therefore, play is provided between the functional package 2 'and the guide grooves 3' provided on the upper and lower surfaces of the unit 1 'in the vertical and horizontal directions to absorb the deviation.

[0005]

In the structure of this conventional plug-in unit, the displacement of the fitting center shafts 4'a and 5'a, especially the displacement in the vertical direction, is often large. Therefore, it is necessary to increase the play between the functional package 2 'and the upper and lower portions of the guide groove 3'.

Increasing the play causes the following problem.

First, the function package 3 'always slides under the guide groove 3' by gravity. For this reason, the fitting guide amount required for the unit connector 4 'and the package connector 5' needs to be twice as large as the displacement amount of the fitting center shafts 4'a and 5'a. As a result, a fitting guide mechanism (not shown) becomes large, and it is difficult to reduce the size.

Second, when the functional package 2 ' is inserted, as shown in FIG. 3, the functional package 2' is tilted in the play above and below the guide groove 3 'due to accelerated insertion or the like. In some cases, it may be tilted immediately before the connector is fitted. In this case, the fitting center axis 4'a of the unit connector 4 'and the fitting center axis 5'a of the package connector 5' are enlarged from the parallel direction to a certain angle. As a result, there are drawbacks such as disturbing the fitting of the connector.

An object of the present invention is to provide a small plug-in unit which can prevent the function package from being tilted when the function package is inserted into the unit along the guide groove.

[0010]

A plug-in unit to which the present invention is applied includes a hollow unit, at least one plate-shaped functional package inserted into the unit, and
A plug-in unit having at least one unit connector on a back surface of the unit, and a guide groove for inserting and guiding a functional package with play provided on upper and lower surfaces of the unit. A package connector fitted to the unit connector is provided at an end of the functional package so as to be electrically connected to the unit connector.

According to the present invention, when the function package is inserted into the unit along the guide groove on the bottom surface of the guide groove, the plug-in unit is provided with a fitting center axis of the unit connector. The function package so that the fitting center axis of the package connector coincides with the function package.
A biasing means such as a leaf spring that biases the position of the
I am .

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of a plug-in unit according to an embodiment of the present invention.

The plug-in unit of this embodiment has a hollow unit 1 and at least one plate-like functional package 2 inserted into the unit 1. On the upper and lower surfaces of the unit 1, guide grooves 3 for inserting and guiding the function package 2 are fixed to the unit 1 by screws or the like. At least one unit connector 4 is fixed to the back of the unit 1 by screwing or the like to the unit 1.

The width of the guide groove 3 is appropriately larger than the thickness of the functional package 2. In addition, upper and lower guide grooves 3
The dimension between them is appropriately larger than the height dimension of the functional package 2.

A package connector 5 fitted to the unit connector 4 so as to be electrically connected to the unit connector 4 is mounted at the tip of the functional package 2.

In this embodiment, a leaf spring 6 is joined to the bottom of the guide groove 3 by welding or the like. This leaf spring 6
When the function package 2 is inserted into the unit 1,
Circumscribe the upper and lower sides of the function package 2
Has the effect of floating. The leaf spring 6 changes the spring constant by a method such as changing the thickness of the upper and lower leaf springs. The lower leaf spring 6 is balanced with the upper leaf spring 6 in consideration of the weight of the functional package 2. I have. This allows
The function package 2 is urged near the center between the upper and lower guide grooves 6.

Even if the fitting center axis 4a of the unit connector 4 and the fitting center axis 5a of the package connector 5 are misaligned due to manufacturing tolerances, the misalignment should be absorbed.
The upper or lower leaf spring 6 is bent. This allows
The connector can be smoothly fitted.

Further, when the functional package 2 is inserted into the unit 1 along the guide groove 3, the upper and lower leaf springs 6
The moderate pressure exerts a slight resistance action on the sliding direction of the function package 2. By this action, not only the accelerated insertion of the functional package 2 can be prevented, but also the inclination of the functional package 2 due to play between the upper and lower guide grooves 3 can be prevented.

[0020]

As is apparent from the above description, in the plug-in unit according to the present invention , the functional package is inserted into the unit along the guide grooves on the bottom surfaces of the upper and lower guide grooves.
When inserting the unit connector,
Function pack so that the connector's central axis fits.
Since the urging means such as a leaf spring for urging the position of the cage near the center is provided, the position of the functional package is always adjusted in the play within the play of the functional package generated in the play between the upper and lower guide grooves. It can be floated near the center. In addition, it is possible to prevent the function package from being accelerated and inserted by an appropriate sliding force by the urging means, and to prevent the function package from being tilted.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a plug-in unit according to an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional plug-in unit;
Is a side sectional view, and (b) is a perspective view.

FIG. 3 is a side sectional view showing an inclination of a function package of a conventional plug-in unit.

[Explanation of symbols]

 1 unit 2 function package 3 guide groove 4 unit connector 5 package connector 6 leaf spring

Claims (2)

(57) [Claims] 1. A plug-in unit comprising a hollow unit and at least one plate-shaped functional package inserted into the unit, wherein at least one unit connector is provided on a back surface of the unit. Are provided on the upper and lower surfaces of the unit, and guide grooves for guiding the insertion of the function package with play are provided, and the distal end of the function package is electrically connected to the unit connector. In a plug-in unit provided with a package connector fitted to a unit connector, when inserting the functional package into the unit along the guide groove on the bottom surface of the guide groove, The function package is mounted so that the fitting center axis and the fitting center axis of the package connector coincide with each other.
A biasing means for biasing the position near the center is provided.
And a plug-in unit. 2. A plug-in unit according to claim 1, wherein said biasing means is a leaf spring.