KR950006022B1 - Turning insertion type electrical connector - Google Patents

Abstract

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Description

Rotating mating electrical connector

1 is a schematic side view showing an embodiment in which the HDD according to the laptop type personal computer is detachable by employing the connector according to the present invention.

2 is a perspective view of a receptacle connector of a connector according to an embodiment of the present invention.

3 is a perspective view of a plug connector.

4 is a cross-sectional view of the center part showing a state immediately before coupling of both connectors.

5 is a cross-sectional view of the central portion showing a coupling state of both connectors.

6 is a side cross-sectional view showing a state immediately before coupling of both connectors.

Figure 7 is a side cross-sectional view showing a coupling state of both connectors.

8 to 11 are rear, top, front and side views of the receptacle connector.

12 is a cross-sectional view taken along the line XII-XII of FIG.

13 to 16 are rear, top, front and side views of the plug connector.

FIG. 17 is a cross-sectional view taken along the line XIII-XIII of FIG.

* Explanation of symbols for main parts of the drawings

2: Perscom body (electronic device) 4: HDD (electronic parts)

20: Receptacle side connector 40: Plug side connector

21, 41: housing 22, 42: fixed part

23: arc-shaped recess 43: arc-shaped protrusion

24, 44: protrusion 24 ': protrusion

44 ': hole 27, 47: contact

The present invention relates to electrical connectors, in particular to electrical connectors in the form of rotation.

Recently, as miniaturization and high performance of electronic devices have progressed, requests for attaching and detaching a hard disk to a laptop-type personal computer have emerged. In order to attach and detach the hard disk to and from the main body, the hard disk drive (HDD) must be detachably attachable to the main body. When the HDD is attached to the main body mechanically and electrically, there are the following problems. .

In order to mechanically couple the HDD to the main body, when the HDD is perturbed and inserted horizontally in the cutout portion provided in the lower part of the main body, a connector that mutually couples to the insertion end of the HDD and the part of the main body side to which the end is in contact is installed. The electrical coupling is to be made by this connector. In this type of perturbation coupling, in order to couple the connector with sufficient contact pressure, when the HDD is perturbed and inserted, the insertion resistance increases when the connector starts contact, and the HDD must be pressed against this resistance. Upon completion, that is, when a HDD is brought into contact with the main body, a large mechanical shock is generated, which causes a mechanical shock to the HDD, which is not a good problem for a precision HDD.

The present invention aims to solve this problem and to provide a detachable electrical connector suitable for this kind of use as well as having a low impact upon joining.

The electrical connector according to the present invention is characterized in that the coupling method is a rotational coupling type, in order to enable a mechanical and electrical coupling with a small mechanical impact at the time of coupling and also to be easily removable.

That is, the electrical connector according to the present invention is provided with a fixed housing and a rotating housing having a plurality of contacts in the corresponding position in the longitudinal direction, respectively, and install a point engaging portion on one side of the mating surface of the two housings, this point engagement A recess and a protrusion having a conical surface for guiding rotation to the point are formed to be mutually engaged at the joining surface of the both housings.

According to the electrical connector of the present invention, when the two housings of the connector are engaged by point engagement, the force applied is almost inserted into the center so that the center of rotation (point) is determined, and the recessed part and the protrusion having the arcuate surface Since it becomes a guide of rotation, attachment and detachment of a connector can be performed very smoothly and at the same time. In addition, the rotary coupling does not exist in the perturbation coupling, so that it does not impact the electrical components such as the HDD.

By the way, when the both housings are guided by the concave portion and the projection having an arc-shaped surface for guiding, and the concave portion and the projection are combined after joining, the staggering of both connectors in the radial direction of these arcs is firmly prevented. It is possible to hold the holding parts such as electrical parts to electronic devices and the like after the bonding, and to withstand the holdings sufficiently even when the weight of the electric parts is increased.

Alternatively, the force required for rotational engagement can be adjusted by varying the dimensions of recesses and protrusions with approximately arcuate surfaces. That is, when both dimensions are similar, the force required for rotational coupling becomes large, and when it is different, it can be combined with less force.

As another effect, in the case of perturbation coupling, a groove (cutting portion) must be provided at one end (eg, bottom) of the electronic device from the end of the perturbation insertion to the engagement contact position. There is an advantage to having a cut.

EXAMPLE

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

This embodiment describes, by way of example, an electrical connector for detachably attaching a hard disk drive (HDD) to a laptop personal computer.

As shown in FIG. 1, the connector of the present invention is used to easily attach and detach the hard disk drive (HDD) 4 to the bottom of the laptop-type personal computer body 2.

The receptacle-side connector 20 (corresponding to the fixed housing) shown in FIG. 2 is fixed to the personal computer main body 2, and the plug-side connector 40 (shown in FIG. 3) shown in FIG. Corresponds to the housing) is fixed. When attaching the HDD 4 to the personal computer main body 2, the end portion on the plug side connector 40 side of the HDD 4 is brought into contact with the receptacle side connector 20 of the main body 2, and the arrow shown in FIG. As indicated by the hour A, the HDD 4 is mounted by rotating the HDD 4 from the position of the chain line to the position of the solid line, with the lower edge of the contact surface of the connector as the point. Receptacle-side connectors (hereinafter referred to as "reset connectors") 20 are fixing portions 22 and 22 for fixing to the personal computer 2 at both ends of the housing 21 as shown in FIG. It has a circular arc-shaped groove 23, 23 (corresponding to the above-mentioned recess) on both ends of the front (side facing the plug connector 40), extending in the axial direction in the front lower portion, It has a protrusion 24 having a plurality of engaging protrusions 24 ′ for forming a point, and has a shelf portion 25 spaced apart from the protrusion 24 on the front face, and has a two shelf portion 24 and a protrusion. A plurality of contacts 27 (see also fourth and fifth) are provided above the space 26 formed between the 24.

The plug-side connector (hereinafter simply referred to as plug connector) 40 has fixing parts 42 and 42 for fixing to the HDD 4 at both ends of the housing 41, as shown in FIG. It has arc-shaped protrusions 43 and 43 (corresponding to the protrusions) at both ends of the front face (side facing the connector 20), extends in the width direction at the bottom of the front face, and at the top of the recess connector 20. A protrusion 44 having a plurality of engagement holes 24 'for accommodating the engaging projections 24' and engaging with them (through holes in the drawing), the upper part of which has a shelf when combined with the recess connector 20; An axially extending cover part 45 engaging on the part 25 has an axially extending protrusion 46 inserted into the central space 26 of the recess connector 20 at the front center thereof. The upper surface of the central protrusion 46 has a plurality of contacts electrically connected to the contacts 27 of the recess connector 20. 47 is provided with a (4, see Fig. 5).

Sectional drawing of the center part (part with contacts 27 and 47) of both connectors 20 and 40 is shown in FIG. 4 and FIG. 5, and the end part (circular-shaped groove part 23 and protrusion 43) is shown. ) Are shown in FIGS. 6 and 7 (hatching of the cross sections is omitted).

4 and 6 show the state immediately before mounting, while FIGS. 5 and 7 show the state upon mounting (coupling).

As shown in FIG. 4, the contact 27 of the recess connector 20 penetrates the printed circuit board (PCB) 30 on the side of the computer main body 2 fixed to the lower surface of the recess connector 20, It has the tine part 27 'soldered to it, and is fixed to the recess connector 20 by a well-known method. On the other hand, the contact 47 of the plug connector 40 is also electrically connected to a circuit board (not shown) on the HDD 4 side and fixed to the plug connector 40.

When attaching the HDD 4 to the personal computer main body 2, as shown in FIG. 1, the front end of the HDD 4 (the end of the side on which the plug connector 40 is installed) of the personal computer main body 2 is mounted. The projection 24 'of the lower part of the recess connector 20 is inclined to abut the end of the HDD mounting recess on the lower surface (the side on which the connector 20 is installed), as shown in FIG. ) Engages the hole 44 'of the protrusion 44 at the bottom of the plug connector 40, as shown in FIG. 5 with the periphery of the upper edge of the protrusion 44 at the bottom of the plug connector 40 as a point. Rotate the HDD 4 to one position.

In this case, as shown in FIGS. 6 and 7, the arc-shaped protrusions 43 and 43 of the plug connector 40 are inserted while being guided to the arc-shaped recesses 23 and 23 of the recess connector 20. Guide the rotation around this point. At this time, when the projection (24 ') of the recess connector 20 is engaged in the recess (hole 44') of the plug connector 40, the force applied is almost zero. Therefore, the center (point) of rotation is determined, and since the arc-shaped protrusion 43 and the recess 23 on both ends of the connector serve as a guide for rotation, the connector can be detached very smoothly and easily. have. In addition, since there is no rotational coupling in the perturbation coupling, it does not give an impact on electrical components such as HDDs.

In addition, since the connection of both connectors does not need to be held by the plug connector 40 by hand, the point of action (conduction center) from the point (rotation center) is combined when the HDD 4, which is an electrical component connected to the plug connector 40, is engaged. Compared with the distance from the contact point (27, 47), the distance from the point to the inversion point (the part holding the HDD 4) becomes longer, and the force required for the coupling can be reduced by the principle of the lever. It is possible to make sure electrical contact with sufficient contact pressure.

In addition, since both connectors are guided by the circular arc-shaped protrusion 43 and the cylindrical groove 23 for guiding, and the protrusions and the groove are coupled after the coupling, the radial direction of these arcs (up and down direction is shown on the side). Even if both connectors are firmly prevented, the holding of the electrical component (HDD 4) to the electronic device (computer body 2) after coupling is firmly performed, and the weight of the electrical component is increased. I can endure the pussy enough.

In addition, by changing the dimensions of the arc-shaped protrusion 43 and the arc-shaped groove 23, it is possible to adjust the force required for rotational coupling. In other words, if the two dimensions are similar, the force required for rotational coupling increases, and in other cases, the force can be combined with a small force.

Further, the recessed portion and the protrusion having the arcuate face need not be provided at both ends of the housing, but may be provided between the contacts 27 and 47 adjacent to each other.

8 to 12 are views illustrating the recess connector 20 in detail, and FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. 13 to 17 show the plug connector 40 in detail, and FIG. 17 is a cross-sectional view taken along the line XIII-XIII of FIG. The same reference numerals are used for FIGS. 1 to 7, and detailed descriptions thereof will be omitted.

Claims (1)

Each circle is provided with a fixed housing and a rotation housing having a plurality of contacts in corresponding positions along the longitudinal direction, and install a point engaging portion around one side of the mating surface of the both housings, and guide the rotation to the point engaging portion as a point. A rotatable electrical connector, characterized in that the recessed portion having an arcuate surface and a protrusion are formed to be mutually coupled to the mating surface of the both housings.

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