JPH086396Y2 - Floating connector mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a connector used for electrically connecting electronic devices to each other, and a connector used for a connecting part of an electric unit mounted on a main body with a built-in structure. The present invention relates to a structure that is particularly effective as a mounting structure for.

[0002]

2. Description of the Related Art A structure for fixing a power supply unit, a disk drive unit, and the like, which are components of an electric device, by a built-in structure, that is, as shown in FIG. According to the structure in which the front plate 24 is inserted into the main body 21 with the screws 25 and the like, the assembly and maintenance of the device and the replacement of the electric unit 23 can be performed very easily.

When adopting such a built-in structure, the electrical connection between the mounted electric unit 23 and the main body 21 is made by the bottom surface of the unit housing 22 and the electric unit 2.
A pair of connectors 1 provided to face the bottom surface of 3
It is convenient to be done through a, 1b,
The connectors 1a and 1b are simultaneously connected to each other by the work of mechanically fixing the electric unit 23 to the main body 21.

However, when the structure as shown in FIG. 4 is adopted, the member forming the main body 21 and the electric unit 23 are formed between the connector 1a provided on the main body side and the connector 1b provided on the electric unit side. A position error occurs due to the accumulation of dimensional errors of the members, and unless a means for absorbing this error is provided, when the electric unit 23 is mechanically fixed to the main body 21, the fixing force of the connectors 1a and 1b. There is a risk of acting on the fitting portion and damaging the connectors 1a and 1b.

Therefore, conventionally, as a structure for mounting the connector 1, as shown in FIG. 5, a stepped screw 1 having a large diameter portion 11 which is longer than the thickness t of the mounting metal fitting 8 by a fitting gap.
2, the diameter of the mounting hole 10 provided in the mounting bracket 8 is increased so that a sufficient clearance 26 is formed between the mounting hole 10 and the large diameter portion 11 of the mounting screw, and the connector 1 is inserted into the mounting hole 10. The structure is adopted in which the stepped screw 12 is fastened and fixed to the stepped portion 14 formed between the large diameter portion 11 and the screw portion 27. In this way, even if the stepped screw 12 is fastened to the connector 1, the fastening force does not act between the head of the stepped screw 12 and the mounting bracket 8 or between the connector 1 and the mounting bracket 8. Therefore, the connector 1 can move freely along the surface of the mounting bracket 8 by the amount of the clearance 26 in the mounting hole.
It is possible to prevent the connector from being unable to fit or being damaged due to the positional error between a and 1b.

The floating mounting structure of the connector as shown in FIG. 5 is enough to be used as the mounting structure on either side of the pair of connectors 1a and 1b. This means that the mounting structure of the present invention described below is used. The same applies when adopted.

[0007]

However, if only the structure shown in FIG. 5 is adopted, the positional error in the direction along the mounting surfaces of the connectors 1a and 1b, that is, the positional error Δ shown in FIG.
However, it is not possible to absorb the positional error of the electric unit 23 in the insertion / removal direction, that is, the dimensional error of L ₁ and L _{2 in} FIG. Therefore, due to a dimensional error in the insertion / removal direction of the electric unit 23, the connector 1
Insertion force more than necessary to a and 1b, connector 1
It happens that a and 1b are not fully inserted.

The force in the inserting direction of the electric unit 23 acting on the connectors 1a and 1b only applies a simple compressive stress to the connectors 1a and 1b, and the contacts of the connectors 1a and 1b contact each other to some extent in their inserting and removing directions. Since the connector 1a, 1b has a stroke, excessive insertion force or insufficient insertion applied to the connector 1a, 1b does not cause fatal damage to the connector 1a, 1b.
In order to prevent accidental damage of 1b and to ensure the electrical connection of the connectors 1a and 1b, it is necessary to avoid applying an excessive insertion force or insufficient insertion. Needless to say.

In view of the above, the present invention has a structure in which the connector 1 is supported so as to be elastically movable in the inserting / removing direction, the structure is simple and compact, and the mounting structure can be adopted for any connector to be mounted at any position. The challenge is to obtain.

[0010]

In this invention, a large-diameter deep counterbore 4 is provided in the mounting hole 2 of the connector 1 from the mounting surface 3 side thereof, and a flange 6 for preventing slipping out is provided at the tip and at the base end. The pin 5 having the screw hole 7 for fastening is attached to the mounting hole 2 of the connector 1.
And the base end of the pin 5 is inserted through the washer 13 into the mounting hole 10 of the mounting bracket.
And the length of the pin 5 is made longer than the thickness T of the mounting seat of the connector 1, and the urging force between the bottom face of the counterbore hole 4 and the washer 13 is stronger than the pin insertion force of the connectors 1a and 1b. A mounting structure is used in which a cylindrical elastic body such as a rubber block 16 having a short columnar shape and a coil spring 17 is inserted.

[0011]

When designing the dimensions of the frame of the main body 21 and the housing of the electric unit 23, when the electric unit 23 is fixed to the main body 21, the cylindrical elastic bodies 16 and 17 are expected to have the maximum error in the insertion / removal direction. It is designed so that the connectors 1a and 1b are fitted together in a state of being compressed by a size or more. In addition, the length of the pin 5 is set so that the thickness of the mounting seat of the connector 1 can be absorbed so that the expected maximum dimensional error in the insertion / removal direction can be absorbed on either side of increasing or decreasing the insertion amount. The maximum error dimension expected from the length T is twice or more longer.

By designing the dimensional relationship as described above, when a dimensional error occurs in the direction of decreasing the insertion amount, the deformation amount of the cylindrical elastic bodies 16 and 17 is reduced, and the connector 1
a and 1b are sufficiently fitted by the urging force of the cylindrical elastic bodies 16 and 17, and when a dimensional error occurs in the direction of increasing the insertion amount, the cylindrical elastic bodies 16 and 17 are excessively compressed. The connector 1 is retracted by the connector 1a,
It is possible to avoid applying an excessive insertion force to 1b.

As for the positional error of the connectors 1a and 1b along the mounting surface 3, the length of the large-diameter portion 11 of the stepped screw 12 is made longer than the thickness of the mounting bracket 8 by a fitting dimension as in the conventional case. Can be absorbed by

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a first embodiment of the present invention, and FIG. 3 is a second embodiment.
It shows an example. In the figure, 1 is a connector, 2 is its mounting hole, and the mounting hole 2 is provided with a deep counterbore 4 from a mounting surface 3 of the connector. Reference numeral 5 denotes a pin inserted from the front surface of the mounting hole 2 of the connector. A flange 6 is formed at the tip of the pin 5, and a screw hole 7 is provided at the center of the base end.

Reference numeral 8 denotes a mounting metal fitting for mounting the connector 1, which is provided with a mounting hole 10 having a sufficient clearance with respect to the mounting screw as in the conventional structure shown in FIG. Large-diameter part 11 that is longer than the plate thickness by a fitting gap
A stepped screw 12 having a screw is screwed into the screw hole 7 of the pin 5 via a washer 13, the tip of the pin 5 is fastened to the washer 13, and the washer 13 is fastened to the stepped portion 14 of the stepped screw 12. . In this fastening state, the head of the stepped screw 12 and the mounting bracket 8
The fastening force is not applied between the washer 13 and the mounting bracket 8, and the connector 1 has a mounting space 8 between the large-diameter portion 11 of the stepped screw and the mounting hole 10 of the mounting bracket. The fact that it is movable in the plane direction is similar to the conventional structure of FIG.

The pin 5 is several mm longer than the thickness T of the mounting seat of the connector 1, and between the bottom face of the counterbore 4 and the washer 13 a short cylindrical rubber block 16 in the first embodiment is provided. In the second embodiment, compression coil springs 17 are respectively interposed. Rubber block 16 and compression coil spring 1
7 urges the connector 1 in a direction in which the connector 1 separates from the mounting member 8, but when the connectors 1a and 1b shown in FIGS. 1 and 3 are not fitted together, Even if the connector 1 is mounted in a state in which there is a gap between the mounting seat and the mounting seat of the connector 1, the flange 6 of the pin and the mounting seat of the connector 1 are in contact with each other by the initial compression force of the rubber block 16 and the compression coil spring 17. It may be attached even if it is attached.

FIG. 2 shows a state where the connector 1a is fitted with the connector 1b in the structure of the first embodiment. When the connectors 1a and 1b are fitted to each other, the cylindrical elastic bodies 16 and 17 are always in a compressed state as described in the above-mentioned action, and the compression reaction force gives the insertion force between the connectors 1a and 1b. To be done. This connector 1
Regarding the action of absorbing the dimensional error in the connector insertion / removal direction at the time of fitting a and 1b, the action is described in the above item, and the action of absorbing the position error in the direction along the mounting surface of the mounting member 8 is described in the above-mentioned conventional technique. Since it has been described, it is omitted here.

[0018]

According to the mounting structure of the present invention described above, in the connector for electrically connecting the built-in type electric unit, the dimensional error in the inserting / removing direction of the electric unit and the position error in the direction orthogonal to the inserting / removing direction are caused. It is possible to obtain a mounting structure capable of absorbing any of the above, the connector is always sufficiently fitted, and excessive stress does not act. Moreover, according to the structure of the present invention, the structure can be adopted regardless of the mounting position of the connector, the shape of the mounting bracket, etc., and the structure is simple and compact.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a cross-sectional view of the first embodiment shown in a connector fitted state.

FIG. 3 is a sectional view of a second embodiment.

FIG. 4 is an explanatory view schematically showing a built-in structure of an electric unit.

FIG. 5 is a sectional view showing an example of a conventional mounting structure.

[Explanation of symbols]

1 Connector 2 Mounting Hole 3 Mounting Surface 4 Counterbore 5 Pin 6 Collar 8 Mounting Bracket 10 Mounting Hole 11 Large Diameter Part 12 Stepped Screw 13 Washer 14 Stepped Section 16 Rubber Block 17 Compression Coil Spring 26 Gaps t Mounting Bracket Thickness T Mounting seat thickness

Claims (1)

[Scope of utility model registration request] 1. A fastener (1) having a large-diameter portion (11) longer than a thickness (t ) of a fitting (8) by a fitting gap.
2) is used to increase the diameter of the mounting hole (10) provided in the mounting bracket (8) to form a sufficient clearance (26) with the large diameter portion (11) of the fastener (12). Floating mounting of the connector for fastening and fixing the connector (1) to the stepped portion (14) formed at the end of the large diameter portion (11) of the fastener (12) inserted through the mounting hole (10) In the structure, the mounting hole (2) of the connector (1) is provided with a large counterbore hole (4) having a large diameter from the mounting surface (3) side, and a pin (5) provided with a flange (6) for retaining at a tip thereof. ) Is inserted into the mounting hole (2) of the connector (1), and the proximal end of the pin (5) is fastened to the mounting bracket (8) via the washer (13) with the fastener (12). ) Is longer than the thickness (T) of the mounting seat of the connector (1), and a connector is provided between the bottom face of the counterbore (4) and the washer (13). Kuta (1a), (1b)
Cylindrical elastic body (1 having a stronger urging force than the pin insertion force of
6), (17) are inserted, the floating mounting structure of the connector.