JPS6358519A - Connector device - Google Patents

Abstract

PURPOSE:To ensure a normal electrical connection in simple constitution with no fault produced even to the device to be connected despite in an averse connection mode, by using plural gate circuit groups which are turned on and off by 1st and 2nd control signals. CONSTITUTION:The gate circuits 14a-14d of a circuit group 13 set between a connector 20 and an internal circuit 11 are turned on and off by a gate control signal G1 and transfer the output signals of connection terminals c2-f2 of the connector 20 to the input/output terminals c3-f3 of the circuit 11. While the gate circuits 14e-14h are turned on and off by the signal G1 and transfer the output signals of terminals h3-hk to terminals h2-k2. The gate circuits 15a-15d are turned on and off by a signal G2, i.e., the inverse signal of the signal G1 and transfers the signals of terminals h3-k3 to terminals c2-f2. Then the circuits 15e-15h are turned on and off by the signal G2 and transfer the signals of terminals h2-k2 to terminals c3-f3 respectively. In such a way, a normal electrical connection to a device to be connected with no fault produced in a simple structure even in an adverse connection mode.

Description

Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention relates to a connector device for electrically connecting different circuit units, particularly for personal computers, printers, and ICs.
This invention relates to a connector device used to connect cards and memory cards.

(Prior Art) - Conventionally, for example, when connecting a circuit unit of an external device to a main unit having a memory circuit, a connector is used. The connector typically corresponds to a first connector part having a plurality of contacts for transferring input or output signals, respectively, and a plurality of contacts of the first connector part. ! It consists of a second connector part having two contact parts. That is, for example, a first connector section is provided on the main device side, a second connector section is provided on the external device side, and the first and second connector sections are connected.
It will be electrically connected.

Incidentally, the contacts and contact portions of the connector are arranged in series, and their directionality is set in advance when they are connected. If the connector is connected in the opposite direction, the electrical connection between the main device and the external device will normally be disrupted, and problems such as malfunction or destruction of the device itself may occur. In order to prevent such reverse connection, a key for preventing reverse connection is added to a predetermined location of the connector, or the shape of the connector is designed so that reverse connection is impossible. However, since all of these methods are related to the mechanical structure of the connector, the reverse connection function may deteriorate due to changes in the shape of the connector, or the structure may be destroyed.

As another method, a structure in which the signal extraction portion of the connector is provided only on one side of a member such as a card edge may be considered. With such a structure, no electrical connection is made even if the device is reversely connected, so that it is possible to prevent malfunctions and failures such as destruction of the device. Although such a connector can protect the device itself, when the device is connected in reverse, it may not be possible to immediately determine whether the device does not work due to the reverse connection or a failure of the device.

(Problems to be Solved by the Invention) In conventional connectors, prevention of reverse connections is handled structurally, so it is impossible to completely prevent various failures due to reverse connections, and the structure becomes complicated. There's a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector device that has a simple structure and can realize normal electrical connection without causing any trouble to the device to be connected even in the case of reverse connection.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention provides a connector comprising, for example, a first connector section provided on the external device side and a second connector section provided on the main device side. The device includes first and second gate circuit groups between a second connector portion and a circuit unit on the main device side. The first gate circuit group is a circuit that is turned on/off by a first control signal output from an external device and is used to transfer an input signal or an output signal between the circuit unit and the second connector section. The second gate circuit group
A circuit that is turned on/off by a second control signal output from an external device with an inverted signal of the sub-part signal of It is.

With this configuration, when the first and second connector parts are connected in reverse, one of the first circuit group or the second circuit group always turns on and the other turns off, so that the main unit and the external The electrical connection between the devices is normal.

(Example) The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the same embodiment. In the first section, the main device 10 has an internal circuit 1 which is a memory circuit, for example.
For example, a memory card having a built-in device 1, and an external device 12
It is equipped with a connector 20 for connection to the. As shown in FIG. 2, the main body device 10 has a configuration in which a connector 20 is connected to a case having an internal circuit 11.

As shown in the first factor, the main body device 10 includes a gate circuit group 13 between the connector 20 and the internal circuit 11.

The gate circuit group 13 includes gate circuits 14a to 14h and gate circuits 158 to 15h, which are turned on/off by the gate control signal G1 or G2. Gate control signal G2
is an inverted signal of the gate control signal G1. Gate circuit 1
4a to 14d are turned on/off by the gate control signal @G1, and each signal output from the contact terminals 02 to 2 of the connector 20 is connected to the input/output terminals c3 to 4 of the internal circuit 11, respectively.
Transfer to f3. The gate circuits 14e to 14h are turned on and off by the gate control signal G1, and transfer each signal outputted from the input/output terminal h3 to the input/output terminal h3 of the internal circuit 11 to the contact terminal h2 to the connector 20, respectively.

On the other hand, the gate circuits 15a to 15d receive the gate control signal G
Each signal output from 3 is connected to the input/output terminal h3 of the internal circuit 11 by the connector 2.
0 contact terminals 02 to r2. Gate circuit 15e
~15h is turned on/off by the gate control signal G2, and transmits each signal outputted from 2 to the contact terminals 12~ of the connector 20 to the input/output terminals 03~f3 of the internal circuit 11, respectively.
Transfer to.

The external device 12 is, for example, a computer equipped with a connector 21 that can be connected to the connector 20 of the main body device 10 . As shown in FIG. 3, the connector 21 has contact terminals a1-1 corresponding to the contact terminals a2-m2 of the connector 20, respectively. Connector 20 and connector 2
1 is centered around the contact terminal g2 and the contact terminal 91, respectively.
The contact terminals 82 to m2 and the contact terminals 81 to 1 are arranged in series with line symmetry.

Next, the operation of this embodiment will be explained. First, as shown in FIG. 1, the connector 21 of the external device 12 is connected to the connector 20 of the main device 10 in the forward direction. That is, the connector 20
Each of the contact terminals 82 to 1112 is connected to the contact terminal 81 to 1 of the corresponding connector 21. Here, when the gate control signal G1 of rHJ level is output from the external device 12, this gate control signal G1 is transmitted through the contact terminal a1 of the connector 21 and the contact terminal a2 of the connector 20.
It is input to each gate of gate circuits 14a to 14h. As a result, the gate circuits 14a to 14h are turned on. On the other hand, a gate control signal G2 at the rLJ level is transmitted from the external device 12 to the gate circuits 15a to 15 through the contact terminal l111 of the connector 21 and the contact terminal m2 of the connector 20.
input to each gate of h. As a result, gate circuit 1
58 to 15h are in the off state.

The gate circuits 14a to 14d transfer each signal from the external device 12 outputted through the contact terminals 01 to t1 of the connector 21 and the contact terminals C2 to f2 of the connector 20 to the input/output terminals C3 to r3 of the internal circuit 11. . Further, the gate circuits 148 to 14h are connected to the input/output terminal h3 of the internal circuit 11.
Connect each output signal from 3 to contact terminal 12 of connector 20
Transfer to 2. As a result, each output signal from the input/output terminals 13 to 3 of the internal circuit 11 is transferred to the external device 12 through the contact terminals h2 to 2 and the contact terminals h2 to 1 of the connector 21. Here, the electric I'R pressure VCC is supplied from the external device 12 to the main device 10 through the contact terminal b1 of the connector 21 and the contact terminal b2 of the connector 20. Similarly, the power supply voltage Vcc is supplied from the external device 12 to the main device 10 through the contact terminal 11 of the connector 21 and the contact terminal I2 of the connector 20.

Next, the external device 1 is connected to the connector 20 of the main device 10.
Assume that the two connectors 21 are connected in the opposite direction. That is, this is a case where the contact terminals 1 to a1 of the connector 21 are connected to the contact terminals 82 to ll12 of the connector 20, respectively.For example, the contact terminal m1 of the connector 21 is connected to the contact terminal a2 of the connector 20. .

In such a reverse connection, the gate control signal G1 at the rHJ level is output from the external device @12 from the contact terminal a1 as in the case of the normal connection, and the gate control signal G at the "S" level is
2 is output from contact terminal 1.

The gate control signal G1 is sent to the gate circuit 15 through the welding terminal a1 of the connector 21 and the contact terminal m2 of the connector 20.
It is input to each gate of a to 15h. As a result, the gate circuits 15a to 15h are turned on. On the other hand, rLJ
A level gate control signal G2 is input to each gate of the gate circuits 14a to 14h through the contact terminal 1 of the connector 21 and the contact terminal a2 of the connector 20. Thereby, the gate circuits 14a to 14h are in an off state.

The gate circuits 158 to 15h transmit each signal from the external device @12 outputted to the contact terminals 01 to 1 of the connector 21 and the contact terminals h2 to h2 of the connector 20 through the input/output terminals 03 to f3 of the internal circuit 11. In addition, the gate circuits 15a to 15d are connected to the input/output terminal h3 of the internal circuit 11.
Connect each output signal from 3 to contact terminal 02 of connector 20
~Transfer to f2. As a result, each output signal from the input/output terminals 13 to 3 of the internal circuit 11 is transmitted to the contact terminals 02 to r.
2 and the contact terminals of the connector 21 are transferred to the external device 12 through 1.

In this way, when the connectors 20 and 21 are connected in a normal manner, the gate circuits 14a to 14h are turned on, and in the case of a reverse connection, the gate circuits 15a to 15h are turned on. Even in the case of connections, the same electrical connections can be made. Therefore, even if the original connection direction of the connectors 20 and 21 is reversed, signal transfer between the main body 11fflo and the external device 12 can be performed in the same way as in the case of normal connection. This results in
Failures such as malfunction and destruction of the device due to reverse connection of the connector can be prevented. In addition, to prevent reverse connection,
There is no need for special construction of the connectors 20,21.

FIG. 4 is a block diagram of another embodiment of the present invention, in which an N source is built into the main unit 10.

In this case, it is not necessary to supply the electric voltage aN to the line-to-image contact terminals 1) 1 (b2) and the contact terminals 11 (+2) as in the case of the embodiment shown in FIG. Incidentally, since the operation and effect are the same as in the case of FIG. 1, detailed explanation will be omitted.

[Effects of the Invention] As detailed above, according to the present invention, a normal electrical connection state can always be obtained regardless of whether the connection is forward or reverse. Therefore, with a simple structure, even in the case of reverse connection, it is possible to prevent failures that may cause malfunction or destruction of the connected device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a perspective view showing the configuration of the main body device of the same actual and hidden example, and FIG. 3 is a diagram showing the configuration of the connector of the same embodiment. FIG. 4 is a block diagram showing the configuration of another embodiment of the present invention. 10...Main device, 11...Internal circuit, 12...
External device, 13...Gate circuit group, 20.21...
connector. Applicant's agent Patent attorney Takehiko Suzue +11 Figure 2 φ Figure 3 Row 1--1

Claims (1)

[Claims] a first connector part provided with a plurality of contact terminals for transferring each of the input signal or output signal of the first circuit unit; and a second connector part connected to the second circuit unit and connectable to the first connector part. a second connector section having a structure including a plurality of contact terminals respectively corresponding to the plurality of contact terminals of the first connector section;
The second circuit unit and the second circuit unit are turned on/off by a first control signal outputted through a specific contact terminal.
A first gate circuit group for transferring an input signal or an output signal between the connector parts of the connector part, and an inverted signal of the first control signal from the first circuit unit to the first specific contact terminal are symmetrical. The second contact terminal is turned on/off by a second control signal outputted through a second specific contact terminal located at a certain position.
A connector device comprising: a circuit unit; and a second gate circuit group for transferring an input signal or an output signal between the second connector section.