JPH08149054A - Non-contact connector, signal transmitting and receiving method using the connector, and device performing the method - Google Patents

Abstract

PURPOSE: To provide a non-contact connector of an electromagnetic coupling type which has a small coil mounting area by arranging the adjacent electromagnetic coils close to each other in an electromagnetic coil group and to provide a signal transmitting/receiving method and device which use the non-contact connector. CONSTITUTION: The write coils W1 to W4 and read coils R1 to R4 are alternately arranged close to each other on a straight line set on a memory card 17. A coil CP is used for supply of power. Then the card 17 is put into a card writing/reading device. When a write control pulse WP is transmitted between the card writing/reading device and the card 17 via a write control coil CW, the coils W1 to W4 are excited and the writing/reading device performs a writing operation to the card 17. On the other hand, the coils R1 to R4 are excited and the writing/reading device performs a reading operation to the card 17 when a read control pulse RP is transmitted via a read control coil CR. Thus the coil mounting area is reduced owing to the coils W and R which are all arranged close to each other. Furthermore an inactive coil is interposed between the adjacent coils respectively so that the interference is reduced between both coils.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact connector, a signal transmitting / receiving method using this connector and an apparatus for implementing this method, and more particularly to an electromagnetic coupling type non-contact connector, a signal transmitting / receiving method using this connector, and An apparatus for carrying out this method.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIG. Figure 7
In (a), 20 indicates a core that constitutes a writing / reading device. Reference numeral 21 denotes a memory card substrate to which a non-contact connector is applied. A print coil 22 is printed on the memory card substrate 21. In addition,
Instead of the print coil 22, a coil wound around a core may be embedded in the substrate 21. Memory card board 21 is a core 20 of a writing / reading device
, And the gap between the coil 22 and the core 20 is electromagnetically coupled to each other, so that data can be transmitted and received between the writing / reading device and the memory card via both of them.

In FIG. 7B, reference numeral 30 is a substrate of the writing / reading device. On the substrate 30 of the device, writing coils indicated by 33w and 34w and reading coils indicated by 35r are formed by printing. In addition, 32p shows the coil for power supplies. Reference numeral 31 is a substrate of the memory card, on which reading coils indicated by 33r and 34r and writing coils indicated by 35w are printed and formed. In addition, 32p shows the coil for power supplies. The memory card substrate 31 is inserted into the writing / reading device, and the writing coils 33w and 34w of the substrate 30 are made to correspond to the reading coils 33r and 34r of the substrate 31 of the memory card, and the reading coil 35r and the writing coil 35w. By electromagnetically coupling these with and corresponding to each other, it is possible to transmit and receive data between the writing / reading device and the memory card via these coils.

In FIG. 7 (c), the write coil w and the read coil r are linearly arranged with a small gap between the coils adjacent to the substrate of the memory card, and these coils are also arranged. The write coil row and the read coil row are arranged in parallel with each other with a small gap between them. Data transmission / reception between the memory card and the writing / reading device is carried out in the same manner as in FIG. 7B.

[0005]

In the non-contact connector as described above, the distance between the coils is reduced when the distance between the coils is reduced in order to reduce the mounting area of the writing coil w and the reading coil r formed in a plane. It is not possible to send and receive good data due to mutual interference between the two.

The present invention provides an electromagnetic coupling type non-contact connector having a small coil mounting area, a signal transmission / reception method using this connector, and an apparatus for implementing this method, which solves the above problems. .

[0007]

In a non-contact connector for electrically connecting by electromagnetic coupling between electromagnetic coils,
Adjacent electromagnetic coils of an electromagnetic coil group are arranged in close contact with each other to form a non-contact connector. The reading coil R group forming one of the electromagnetic coil groups and the writing coil W group forming the other of the electromagnetic coil groups are arranged such that reading coils and writing coils are alternately arranged. A non-contact connector that is

Further, the read coil R group forming one of the electromagnetic coil groups and the write coil W group forming the other of the electromagnetic coil groups are such that the electromagnetic coils are arranged in close contact with each other. A contactless connector was constructed. Further, the read coil R group forming one of the electromagnetic coil groups and the write coil W group forming the other of the electromagnetic coil groups include a non-contact connector in which the read coils and the write coils are arranged in zigzag. Configured.

Here, in the signal transmitting / receiving method using the non-contact connector for electrically connecting by electromagnetic coupling between the electromagnetic coils, the reading coil and the writing coil of the reading coil and the writing coil forming the electromagnetic coil group are used. A signal transmission / reception method for activating the read coils and the write coils in synchronization by alternately arranging the read coils alternately.

Further, in the signal transmitting / receiving method using the non-contact connector for electrically connecting by electromagnetic coupling between the electromagnetic coils, the signal transmitting / receiving method is configured to shift the access timing of the adjacent electromagnetic coils. Further, in a signal transmission / reception method using a non-contact connector that makes an electrical connection by electromagnetic coupling between electromagnetic coils, regarding the reading coil and the writing coil forming the electromagnetic coil group, the reading coil and the writing coil are zigzag. A signal transmission / reception method in which the access timings of adjacent electromagnetic coils are staggered by arranging them in the above-described manner is configured.

Further, in the signal transmitting / receiving method using the non-contact connector for electrically connecting by electromagnetic coupling between the electromagnetic coils, in the reading coil and the writing coil forming the electromagnetic coil group, the reading coil and the writing coil are used. A signal transmission / reception method in which the coils are arranged in a zigzag manner and the read coils and the write coils are operated in synchronization is constructed.

Then, the input pulse signal is converted into a desired signal for driving the coil, which excites the transmitting coil T which is an electromagnetic coil and electromagnetically couples to the receiving coil R which is an electromagnetic coil to be face-coupled. A signal transmission / reception method in which a received signal coupled and transmitted to and amplified and waveform-shaped as an output signal is configured. Further, an electromagnetic coil that includes a transmission coil T that is an electromagnetic coil and that is electromagnetically coupled to the input side circuit 50 that converts an input pulse signal into a desired signal for driving the transmission coil T and the transmission coil T. The signal transmitting / receiving apparatus is configured to include the receiving coil R which is the above, and the output side circuit 60 including the amplification circuit 61 and the waveform shaping circuit 62 for amplifying the received signal by the receiving coil R.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG.
It Figure 1 shows a coil that forms a contactless connector by electromagnetic coupling.
It is a figure explaining an example of how to arrange a file. In Figure 1
17 indicates a memory card. This memory card 1
7, these writing coils W₁ Through W_Four and
Reading coil R₁ Through R_Four Are in close contact with each other in a straight line
Are arranged. And read it as the writing coil W
Every other one of the filling coils R is arranged alternately.
These four writing coils W and four reading coils
Performing 4-bit signal transmission using the coil R
Can be. In this way, the writing coil W and the reading coil
Write by arranging every other file R alternately.
There is one reading coil R between the reading coils W.
Or one writing coil between the reading coils R
By interposing the coil W, the intervening coil 1
Writing gaps adjacent to each other by a gap corresponding to the diameter of each
The coils W and the reading coil R should be separated from each other.
Becomes C _RIs a control coil for reading, C_WIs
This is a control coil for writing. Write read
A writing controller is installed between the memory device and the memory card 17.
Troll coil C_WVia the control pad for writing
And the control coil for reading
Le C_RA control pulse for reading is sent and received via
Be done. Note that C_PIs a power supply coil. writing
The power supply connector is attached to the board 17 of the reading device and the memory card.
IL C_PBy installing the
The plate 17 adopts a configuration in which electric power is obtained from the device side through this.
can do.

A method of transmitting / receiving data between the memory card 17 having the coil arrangement according to the present invention and the writing / reading device will be described below. Memory card 17
To the writing / reading device. When a writing control pulse is transmitted and received between the writing / reading device and the memory card 17 through the writing control coil C _W , the writing coils W ₁ to W ₄ arranged every other one are excited to cause the memory. A writing operation for the card 17 is performed. When the reading control pulse is transmitted and received through the reading control coil C _R , the reading coils R ₁ are arranged every other _one.
Through R ₄ are energized and the write / read device performs a read operation on the memory card 17. In the embodiment shown in FIG. 1, the writing coil W and the reading coil R are arranged in one row, but the number of arrangements may be plural, or the number of electromagnetic coils in one row may be increased. You can

As described above, since the writing coil W and the reading coil R are all arranged in close contact with each other, the mounting area of the coil can be minimized. On top of that, a coil that does not operate is interposed between adjacent coils that operate simultaneously, and a gap corresponding to the diameter of one coil is formed, so that mutual interference between both coils can be reduced. .

Another embodiment of the present invention will be described with reference to FIG.
Reveal Figure 2 shows a non-contact connector formed by electromagnetic coupling.
FIG. 8 is a diagram illustrating another example of a method of arranging coils for
Shows the contactless connector formed on the memory card
There is. In FIG. 2, 17 indicates a memory card. this
The memory card 17 has W₁Through W_Four Indicated by
Writing coil, R₁ Through R_Four Reading indicated by
Each of the winding coils is formed. Write these
Only coil W₁ Through W_Four And reading coil R₁ 
Through R_Four Are closely arranged in a straight line.
And the writing coil W₁ Through W_Four Are close to each other
And the reading coil R₁ Through R
_Four Are also closely aligned with each other. C _RIs for reading
Control coil, C_WIs a control controller for writing
It ’s ill. Note that C_PIs a power supply coil.

The memory card 17 accesses the memory card reading / writing device to read / write data. The non-contact connector of the memory card 17 and the hermaphroditic non-contact connector are also provided on the reading / writing device side. These two non-contact connectors are electromagnetically coupled to each other, so that data can be read / written between the memory card 17 and the reading / writing device.

Here, referring to FIG. 3A, the memory card
A data write operation for the drive 17 will be described. book
The control pulse for writing is the control signal for writing.
Lucoil C_WRead / write device and memory card
It is sent and received to and from the card 17. And sent and received
Writing coil W corresponding to the control pulse ₁ 
Through W_Four Is excited selectively. In Figure 3 (a)
The write control pulse is
I W₁ , W₂ A tie that is sequentially excited in the order
It is regarded as a ming pulse. Write coil W like this
Excited in a time-division manner and multiple coils are excited at the same time
By adopting a configuration that never
Even if they are arranged in contact with each other, it is possible to prevent the coils from interfering with each other.
Be stopped.

A data write operation for the memory card 17 will be described with reference to FIG. FIG. 3 (b)
In the above, the write control pulse transmitted / received via the write control coil C _W is a timing pulse for simultaneously exciting two write coils every other write coil. In FIG. 3B, a plurality of coils are excited at the same time, but since only one coil is excited at the same time, the distance between the coils is equal to or less than the distance at which the coils interfere with each other. It becomes easy to. In the embodiment of FIG. 2, the writing coil W and the reading coil R are arranged in one row, but the number of arrangements may be plural, or the number of electromagnetic coils in one row may be increased. You can

As described above, the coils can be closely arranged to reduce the coil mounting area. On top of that, since every other coil is excited at the same time,
The coils are prevented from interfering with each other. Furthermore,
In the example of FIG. 3B, since data transmission is partially performed in parallel, the transmission is all serial.
Compared with the example of (a), the transmission speed is increased accordingly. As described above, in the signal transmission / reception method using the electromagnetic coupling type non-contact connector, it is possible to reduce the interference between the coils by shifting the operation timings of the write coil W and the read coil R so that they do not operate at the same time. it can.

A further embodiment of the present invention, with reference to FIG.
explain. FIG. 4 illustrates an 8-bit contactless connector
It is a figure. 17 is a substrate, and the upper surface of the upper substrate 17 is
The back surface and the lower surface are the front surface, and the upper surface of the lower substrate 17 is the front surface.
The lower surface is the back surface. This substrate 17 is designated by W
Writing coil and reading indicated by R
Four coils are arranged in parallel in two rows in close contact with each other in the row direction.
Are lined up. How to arrange these two rows of coils
To further explain, the writing coil W₁ , W₃ , W_Five ,
W₇ , W_Ten, W₁₂, W₁₄, W₁₆, And a carp for reading
Le R₂ , R_Four , R₆ , R₈ , R₉ , R₁₁, R ₁₃, R_Fifteenof
As shown in the figure, each of them is arranged alternately every other transmission and reception.
Are lined up. These writing coils W and reading
As for each of the in-built coils R,
The coils are arranged in zigzag in the arrangement direction, and the coil arrangement
About the direction Between the writing coil W
Or write between the read coil R
The only coil W is interposed. Therefore, the writing coil W
Between the comrades and the reading coil R
It is separated by one ill. And two rows of carp
Writing coils W arranged across the rows
And the reading coil R comrades
Even if they are arranged closely, they are separated by about 0.8 of the coil radius.
Therefore, the mutual interference becomes smaller.

These 16 writing coils W and reading coils R formed on one substrate 17 are the 16 reading coils R formed on the other substrate 17.
The writing coils W and the writing coils W are opposed to each other to form a pair of coils, and as a result, an 8-bit non-contact connector is formed. Reference numeral 50 denotes a signal input side circuit, and 60 denotes an output side circuit. The output side circuit 60 comprises an amplifier circuit indicated by 61 and a waveform shaping circuit indicated by 62.

Here, in the non-contact connector of the present invention, since the board 17 is constructed as a hermaphroditic body as shown in FIG. 4, the front surface of the board 17 and the back surface of the board 17 are overlapped with each other. The write coil W and the read coil R face each other as shown by an arrow and are electromagnetically coupled to each other, so that a pulse signal can be transmitted and received from one substrate 17 to the other substrate 17. For example, the writing coil W ₁ of the upper substrate 17 is oppositely coupled to the reading coil R ₉ of the lower substrate 17, and the reading coil R ₂ of the upper substrate 17 is the writing coil W ₉ of the lower substrate 17. ₁₀ , the write coil W ₃ of the upper substrate 17 is oppositely coupled to the read coil R ₁₁ of the lower substrate 17. The same applies hereinafter. In this case, the reading coil R of the upper substrate 17 and the writing coil W of the lower substrate 17 are not operating. The same applies to writing from the lower substrate 17. The substrates 17 stacked as described above are fixedly held in the stacked state by a stopper or other fixing member (not shown).

As described above, in the further embodiment of the non-contact connector of the present invention, since the board 17 is constructed in the same male and female body type, it is compared with the ordinary connector which requires two types of male and female types. It is convenient in manufacturing.
In addition, when connecting both boards 17 to each other, board 1
As long as the front and back surfaces of 7 are superposed on each other, pulse signals can be transmitted and received from one substrate 17 to the other substrate 17, and connection operation can be performed very simply.

Next, referring to FIG. 5, input / output signals of a general transmitter / receiver using the non-contact connector of the present invention will be described. The input signal is sent to the transmitting coil T via the input side circuit 50 which is a coil drive circuit. This input signal is electromagnetically coupled and transmitted to the receiving coil R that excites the transmitting coil T and is oppositely coupled. The reception signal transmitted to the reception coil R is then sent to the output side circuit 60. The reception signal sent to the output side circuit 60 is amplified here by the amplification circuit 61 and waveform-shaped by the waveform shaping circuit 62 to be an output signal as it is. That is, the present invention can be applied to signal transmission / reception in which an input pulse signal is directly used as an output signal.

Referring to FIG. 6, the non-contact connector of the present invention
The transmission and reception of signals in the example using will be described. In FIG.
And one device 70₁ And non-contact connector with cable
72 ₁To connect the other contactless connector to the other device.
Storage 70₂ And the cable 72₂To connect. This connection
The connection between various interfaces, mounted on the ship
Required for waterproof connection in electrical equipment, automobiles, etc.
It is suitable to use for vibration resistant connection.

[0027]

As described above, according to the present invention, since the writing coil and the reading coil are arranged in close contact with each other in the non-contact connector, the mounting area of the coil is minimized. In addition, mutual interference between the coils can be reduced.

By making every other coil excited at the same time, it is possible to prevent the coils from interfering with each other. Further, by partially transmitting data in parallel, it is possible to increase the transmission rate by that amount, as compared with the example in which all data is transmitted serially. Further, by preventing the adjacent coils from operating at the same time, it is possible to reduce interference between the coils.

Further, in the non-contact connector of the present invention, by forming the board in the same type of male and female, it is convenient in manufacturing as compared with a normal connector which requires two types of male and female types. Furthermore, when interconnecting both boards, pulse signals can be sent and received from one board to the other by simply overlapping the front and back surfaces of the boards. You can connect to.

Further, the connection by the non-contact connector of the present invention is preferably used for connection between various interfaces, waterproof connection for electric equipment mounted on a ship, and vibration-proof connection required for automobiles and the like.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example.

FIG. 2 is a diagram illustrating another embodiment.

3 is a timing chart of the embodiment shown in FIG.

FIG. 4 is a diagram illustrating still another embodiment.

FIG. 5 is a diagram illustrating a usage mode of the embodiment.

FIG. 6 is a diagram illustrating another usage mode of the embodiment.

FIG. 7 is a diagram illustrating a conventional example.

[Explanation of symbols]

 R reading coil W writing coil

Claims (10)

[Claims] 1. A non-contact connector for making electrical connection by electromagnetic coupling between electromagnetic coils, wherein adjacent electromagnetic coils of an electromagnetic coil group are closely arranged to each other. Contact connector. 2. The contactless connector according to claim 1, wherein the read coil group forming one of the electromagnetic coil groups and the write coil group forming the other of the electromagnetic coil groups are a read coil and a write coil. With coil 1
A non-contact connector characterized by being arranged alternately every other piece. 3. The non-contact connector according to claim 1, wherein the reading coil group forming one of the electromagnetic coil groups and the writing coil group forming the other of the electromagnetic coil groups are respectively electromagnetic coil members. A non-contact connector, which is arranged in close contact with each other. 4. The non-contact connector according to claim 1, wherein the reading coil group forming one of the electromagnetic coil groups and the writing coil group forming the other of the electromagnetic coil groups are a reading coil and a writing coil. A non-contact connector characterized by arranging coils in zigzag. 5. A signal transmitting / receiving method using a non-contact connector for electrically connecting by electromagnetic coupling between electromagnetic coils, wherein a reading coil and a writing coil forming an electromagnetic coil group are used. A signal transmission / reception method, characterized in that every other coil is alternately arranged to operate the read coils and the write coils in synchronization. 6. A signal transmission / reception method using a non-contact connector for making an electrical connection by electromagnetic coupling between electromagnetic coils, wherein the access timing of adjacent electromagnetic coils is shifted. 7. A signal transmission / reception method using a non-contact connector for electrically connecting electromagnetic coils to each other by electromagnetic coupling, wherein a read coil and a write coil forming an electromagnetic coil group are used. A signal transmitting / receiving method, which comprises arranging coils in a zigzag manner and shifting access timings of adjacent electromagnetic coils. 8. A signal transmitting / receiving method using a non-contact connector for electrically connecting electromagnetic coils to each other by electromagnetic coupling, wherein a reading coil and a writing coil forming an electromagnetic coil group are used. A signal transmission / reception method characterized in that coils are arranged in a zigzag manner and read coils and write coils are operated in synchronization. 9. An input pulse signal is converted into a desired signal for driving a coil, whereby a transmitting coil which is an electromagnetic coil is excited and electromagnetically coupled to a receiving coil which is an electromagnetic coil that is face-coupled. A signal transmission / reception method characterized in that a received signal to be transmitted is amplified and waveform-shaped to be an output signal as it is. 10. A transmission coil that is an electromagnetic coil is provided, and an input side circuit that converts an input pulse signal into a desired signal for driving the transmission coil is provided, and is electromagnetically coupled to the transmission coil. A signal transmitting / receiving apparatus comprising: a receiving coil which is an electromagnetic coil; and an output side circuit including an amplifier circuit for amplifying a signal received by the receiving coil and a waveform shaping circuit.