JP2871606B2 - Hot-swappable connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounted on an electronic circuit board or the like constituting an electronic device or an electronic computer, and more particularly, to a hot-swappable connector having a time-lag contact structure.

[0001]

2. Description of the Related Art In general, in a hot-swap method, a connector terminal mounted on an electronic circuit package is configured to make a time-staggered contact so as to control the connection / disconnection sequence of signals, power supply and ground, and to accompany hot-swap. The structure prevents power supply voltage fluctuations and disturbance of bus line signals.

[0002] In a conventional hot-swappable connector,
In order to realize this time lag contact, in a two-piece connector in which the connectors are connected to each other, as shown in FIG. 7A, a male terminal 3 having a long terminal length and a male terminal 4 having a short terminal length are connected to the plug-side connector 2. Are provided. When the receptacle-side connector 1 is fitted to the plug-side connector 2, the male terminal 3 first contacts the female terminal 5 of the receptacle-side connector 1, and then the male terminal 4 contacts the female terminal 6. And the male terminal 4 can be brought into time difference contact by the difference in length.

In a one-piece type card edge type connector in which a connector is connected to a pad on an electronic circuit board, as shown in FIG. The contact pad 15 and the contact pad 16 are arranged so as to be shifted from each other in the fitting direction, and have a structure in which the pads can be brought into contact with each other by a time difference corresponding to the positional deviation between the pads when fitting.

In the connector described in Japanese Utility Model Application Laid-Open No. 61-161979, the shape of the female terminal is changed in order to realize a time-lag contact, specifically, only an arbitrary contact portion is bent and raised. It has a structure that shifts the bending position by the amount that you want to contact.

[0005]

In a conventional hot-swappable connector, it is necessary to prepare a plurality of types of terminals having different terminal lengths and bending positions of the connector in order to provide a time lag connection for hot-swap. However, there is a problem that the price increases because the number of types of parts increases. Furthermore, since the types of terminals are further increased depending on which position of the connector is to be incorporated in which position, various types of terminals are produced in small quantities, resulting in higher prices.

Further, in the conventional time-lag connector for hot-swapping, there is another problem that once the connector is mounted on the electronic circuit wiring board, the sequence of the time-lag connection cannot be easily changed. This is because, in the conventional connector, the length and shape of the terminal itself are changed in order to realize the time lag connection. To change the sequence of the time lag connection later due to a change in the function / use of the electronic circuit package, a two-piece connection is required. In the case of a type connector, the only option is to replace the entire connector, or to remove and replace one contact at a time by soldering or press-fitting. For the card edge connector, the electronic circuit wiring board of the electronic circuit package has been changed. This is because

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive hot-swappable connector that can easily change the time lag connection sequence even after the connector has been mounted, which was conventionally difficult after the connector was once mounted on an electronic circuit package or the like. To provide.

[0008]

SUMMARY OF THE INVENTION A connector according to the present invention is a hot-pluggable connector having a receptacle-side connector having a plurality of female terminals and a plug-side connector having a plurality of male terminals to be fitted with the receptacle-side connector. In the connector, the receptacle-side connector is independent in individual female terminal units or in the same connection order of female terminal units,
At the time of non-fitting, a part protrudes from the outer peripheral portion of the receptacle-side connector, and at the time of fitting, a plurality of the protruding portions are sequentially pressed to connect each of the plurality of female terminals to the plurality of male terminals of the plug-side connector. And the plug-side connector has a structure in which a mold guide wall around the connector has a different height in the fitting stroke direction, and the receptacle-side connector and the plug-side connector When the protruding portions are sequentially pressed by the mold guide wall when the two are fitted to each other, each of the plurality of female terminals is sequentially pressed and contacted with each of the plurality of male terminals of the receptacle-side connector.

Another connector according to the present invention is a hot-swappable connector including a receptacle-side connector having a plurality of female terminals and a plug-side connector having a plurality of male terminals, wherein the receptacle-side connector is provided for each female terminal. A mold in which a plurality of holes are arranged in the fitting stroke direction, and inserted into one of the plurality of mold holes in female terminal units. When the female terminal is not pushed by the movable piece, the female terminal does not contact the male terminal even when the female terminal is not pressed by the movable piece, and the plug-side connector has a tapered end. Having the mold guide wall, and when the receptacle side connector and the plug side connector are fitted to each other, the mold guide wall Serial movable frame is pushed further, the female terminal contacts are pressed against the male terminal by the movable frame.

[0010]

Next, a first embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 1 and 2A, the receptacle-side connector 1 mounted on the electronic circuit board 14 is shown.
Are independent in units of the female terminal 5 and the female terminal 6, and the tip contacts the female terminal 5 and the female terminal 6. When not fitted, a part of the spring protrudes from the outer shape of the receptacle-side connector 1 in a triangular shape. It has cantilevered mold portions 7 and 8 having properties.

Assuming that the contact gap between the male terminal 3 and the male terminal 4 is La and the contact gap between the female terminal 5 and the female terminal 6 is Lb, the relationship La <Lb is established in the unfitted state. I have. The plug-side connector 2 mounted on the electronic circuit board 14 includes mold guide walls 9 and 10 which are detachable around the periphery and have heights L1 and L2 in the fitting stroke direction, and have tapered portions at the edges. Have.

Next, the operation of the present embodiment will be described in detail with reference to FIGS. 2 (a), 2 (b) and 3 according to the order of connector fitting.

In the state before the fitting, as shown in FIG. 2A, the female terminals 5 and 6 of the receptacle-side connector 1 are affected by the cantilever mold 7 and the cantilever mold 8, respectively. And the contact gap is Lb. Naturally, in this state, the female terminal 5 and the male terminal 3, and the female terminal 6 and the male terminal 4 are all in a non-contact state.

When the receptacle-side connector 1 is inserted into the plug-side connector 2, the state shown in FIG. In this state, the triangular protruding portion of the cantilever mold 7 of the receptacle-side connector 1 is pushed by the tapered portion of the edge of the mold guide wall 9 of the plug-side connector 2, and the contact on the female terminal 5 side is made. The gap becomes smaller, the contact gap Lb becomes Lb ',
The female terminal 5 contacts the male terminal 3 and is electrically connected.
At this time, the female terminal 6 and the male terminal 4 are still in a non-contact state.

When the insertion is further advanced to complete the fitting, FIG.
The state shown in FIG. The tapered portion of the mold guide wall 10 of the plug connector 2 delays the cantilever of the receptacle connector 1 with a delay of (L1−L2) × the insertion speed with respect to the female terminal 5 and the male terminal 3 which have been previously connected. When the triangular projecting portion of the mold 8 is pressed, the contact gap on the female terminal 5 side is reduced, the contact gap Lb 'becomes Lb ", and the female terminal 6 contacts the male terminal 4 and is electrically connected.

When the connector is removed, the contact between the male terminal and the female terminal is cut in the reverse order of the fitting described above.

As described above, the plug-side connector 2
Since the time difference connection between the female terminal and the male terminal can be realized by the mold guide wall 9 and the mold guide wall 10, when the timing and order of the time difference connection are changed, even if the connector is mounted on the electronic circuit board 14, It can be easily changed by exchanging only parts of the guide wall 9 and the mold guide wall 10.

Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 4 and FIG. 5 (a), a mushroom-shaped movable piece which is pushed by the female terminal 5 and the female terminal 6 and partially protrudes outward when not fitted to the receptacle side connector 1 is shown. 12 and movable top 13 and movable top 1
2 and mold hole 11 for mounting movable top 13
A plurality of mold holes 11 are provided at La intervals in each terminal unit in the fitting stroke direction, and only one movable piece 12 or one movable piece 13 is mounted in the mold hole 11 in each terminal unit. ing. The contact gap L1 between the female terminal 5 and the female terminal 6 is the contact gap L1 between the male terminal 3 and the female terminal 4 of the plug-side connector 2.
When L2 is not fitted, L1> L2.

As shown in FIG. 5B, when the receptacle connector 1 is inserted into the plug connector 2,
The receptacle-side connector 1 is inserted while being guided by the mold guide walls 9 and the mold guide walls 10 of the plug-side connector 2. At this time, the protrusion of the movable piece 13 of the receptacle-side connector 1 It is pushed by the guide wall 10 and retracted until it becomes flush with the outer peripheral surface of the receptacle-side connector 1. Therefore, the movable piece 13 pushes the female terminal 6 of the receptacle-side connector 1, and the contact gap L <b> 1 is reduced, and the movable top 13 comes into contact with the male terminal 4 of the plug-side connector 2 to be electrically connected. Further, as shown in FIG.
As the fitting proceeds, the movable piece 12 of the receptacle-side connector 1 is also pushed by the mold guide wall 9 of the plug-side connector 2 with a time delay of La × fitting speed, and is the same as the outer peripheral surface of the receptacle-side connector 1. The movable piece 12 pushes the female terminal 5 by being retracted until it becomes a surface, so that the female terminal 5 and the male terminal 3 come into contact and are electrically connected with a time difference.

As described above, the plug-side connector 2
The time difference connection between the female terminal and the male terminal can be realized by the positions of the mounting holes of the movable top 12 and the movable top 13, so that the timing and order of the time difference connection can be changed even after the connector is mounted on the electronic circuit board 14. It can be easily changed only by changing the mounting position of the movable piece 12 and the movable piece 13.

[0023]

As described above, in order to provide a time lag connection for hot-swapping, a conventional hot-swappable connector has prepared a plurality of types of terminals with different connector lengths and bending positions. In the present invention, the same connector terminals are used, and the time difference connection can be dealt with by changing one part or changing the assembling position, so that the present invention has the effect of reducing the connector price. .

Further, in the conventional connector, the length and shape of the terminal itself were changed in order to realize the time lag connection.
The present invention also has an effect that the order of the time-lag connection can be easily changed only by replacing part of the connector mold or changing the mounting position of the mold component.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

2A is a cross-sectional view before fitting when cut along the line AA in FIG. 1. FIG. FIG. 2B is a cross-sectional view in the middle of the fitting when FIG. 1 is cut along the line AA.

FIG. 3 is a cross-sectional view of FIG. 1 taken along line AA, showing the completion of fitting.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5A is a cross-sectional view taken along line BB in FIG. 4 before fitting. FIG. 5B is a sectional view in the middle of the fitting when FIG. 4 is cut along the line BB.

FIG. 6 is a cross-sectional view of FIG. 4 taken along the line BB after the fitting is completed.

FIG. 7A is a cross-sectional view of a conventional connector.
(B) is a sectional view of another conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receptacle side connector 2 Plug side connector 3 Male terminal 4 Male terminal 5 Female terminal 6 Female terminal 7 Cantilever mold 8 Cantilever mold 9 Mold guide wall 10 Mold guide wall 11 Mold hole 12 Movable piece 13 Movable piece 14 Electronic circuit wiring board 15 Contact pad 16 Contact pad 17 Card edge connector

Claims (2)

(57) [Claims] 1. A hot-swap connector having a receptacle-side connector having a plurality of female terminals and a plug-side connector having a plurality of male terminals fitted with the receptacle-side connector, wherein the receptacle-side connectors are individually The female terminal unit or the female terminal unit in the same connection order are independent, and when not fitted, a part protrudes from the outer peripheral portion of the receptacle-side connector, and when fitted, a plurality of the protruding portions are sequentially pushed, whereby the plural Each of the plurality of male terminals of the plug-side connector has a structure in which the mold guide walls around the connector have different heights in the fitting stroke direction. The receptacle-side connector and the plug-side connector are fitted with each other. When the plurality of female terminals are sequentially pressed by the mold guide wall, each of the plurality of female terminals is sequentially pressed against and contacts each of the plurality of male terminals of the receptacle-side connector. Connector for insertion / extraction. 2. A hot-swappable connector comprising a receptacle-side connector having a plurality of female terminals and a plug-side connector having a plurality of male terminals, wherein the receptacle-side connector has a fitting stroke direction for each female terminal. A plurality of holes are arranged in a mold, and each of the plurality of mold holes is inserted into one of the plurality of mold holes in a unit of a female terminal, and when not fitted, is pushed by the female terminal, and a part thereof is projected from the wall surface of the mold. A movable piece, and when the female terminal is not pressed by the movable piece, it does not come into contact with the male terminal even when fitted, and the plug-side connector has a mold guide wall whose end is tapered. Having, when the receptacle side connector and the plug side connector are fitted with each other, the movable piece is pressed by the mold guide wall, Further, the female terminal is pressed against the male terminal by the movable piece and comes into contact with the male terminal.