JPS63102113A - Signal cable - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a signal cable for transmitting electrical signals.

[Prior Art] Conventionally, when an electric signal is extracted from a signal cable, a resistor is inserted between the transmission lines at the receiving end to terminate the signal. The terminating resistor used at this time is usually a carbon-based fixed resistor, etc., and is installed in the receiving unit to which the cable is connected with enough space to place the fixed resistor. The transmission line was connected to a fixed resistor and terminated.

[Problems to be solved] However, since conventional signal cables like this one use a general fixed resistor, it is necessary to create a space to accommodate this in a predetermined position within the receiving unit when creating the unit. In addition, when reconnecting the signal cable from the original receiving end to another receiving end, either move the terminating resistor together, or create a space at the destination in advance and connect another resistor. Since it is necessary to prepare a device, there is a problem that there is little flexibility when making connections and changes.

[Means for Solving Problems] The present invention has been made in view of the above problems, and includes a tape fabric made of an insulating material, and a plurality of signals provided on the surface or inner layer of this tape fabric. A transmission pattern, a signal acquisition mechanism provided on the transmission end side of these signal transmission patterns and for taking in a signal from the outside, and a signal acquisition mechanism provided on the reception end side of the signal transmission pattern and taking out the signal to the outside. and a resistive pattern that is provided on the surface or inner layer of the tape fabric and electrically connects any of the signal transmission patterns in the vicinity of the receiving end side. It is a feature.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing an embodiment of the present invention.
FIG. 3 is a perspective view showing its usage state.

First, to explain the structure, 1 in the figure is a tape fabric made of an insulating material, and on the surface of this tape fabric 1, two signal transmission patterns 2 and 3 are arranged in parallel. are doing. These signal transmission patterns 2.3 include terminal portions 4 and 5 on the transmission end side, which serve as a signal acquisition mechanism that can make an electrical connection with the outside and take in signals from the outside.
and a terminal portion 6.7 on the receiving end side serving as a signal extraction mechanism capable of electrically connecting with the outside and taking out a signal to the outside.

Reference numeral 8 denotes a resistive pattern provided in the inner layer of the tape fabric 1 near the receiving end side terminal portion 6.7, and is made of a resistive material having a certain resistance value. Since the resistance value is determined by the material, width, thickness, etc. of the resistive pattern 8, when forming the resistive pattern 8, the resistance value is set to a desired value by taking these into consideration. The resistive pattern 8 has two conductive via holes 9. It is connected to the two signal transmission patterns 2.3 through IO.

Next, the operation of this embodiment will be explained.

The signal cable according to this embodiment is used by being connected as shown in FIG.

That is, in the figure, reference numeral 11 is a transmitting unit board that is intended to transmit a signal, and reference numeral 12 is a receiving unit board that is intended to receive a signal. The transmitting unit board 11 includes two signal wiring patterns 13 and 14 for transmitting signals to be transmitted, and also includes:
The receiving unit board 12 has two signal wiring patterns 15 and 16 that transmit received signals to a receiving unit (not shown).
It is equipped with The terminal portions 4 and 5 on the transmitting end side of the two signal transmission patterns 2.3 of the signal cable are individually connected to the transmitting side signal wiring patterns 13 and 14, and the receiving side Signal wiring pattern 15.16
The terminal portions 6 and 7 on the receiving end side of the signal transmission pattern 2.3 are individually connected to the terminal portions 6 and 7 of the signal transmission pattern 2.3.

In this embodiment, the signal line A connects the signal wiring pattern 13, the terminal portion 4, the signal transmission pattern 2, the terminal portion 6, and the signal wiring pattern 15, and the signal wiring pattern 14 and the terminal portion 5. Two signal lines are formed: the signal transmission pattern 3, the signal line B connecting the terminal portion 7, and the signal wiring pattern 16. Therefore, the signals transmitted to the two signal wiring patterns 13 and 14 on the transmitting unit board 11 are transmitted through these two signal lines A and B, and are transmitted through the two signal wiring patterns 15 and 16 on the receiving unit board 12.
The signal is supplied from the receiver to a receiving unit (not shown).

In this case, in the vicinity of the receiving end side of the signal transmission pattern 2.3, a resistive pattern 8 having a certain resistance value is connected to two VIs.
Since it is connected via A holes 9 and 10, the above 2
The actual signal lines A and B are equivalent to inserting a resistor having a certain resistance value, and therefore a signal with resistance termination can be obtained at the receiving end of the signal cable. Furthermore, since the resistor termination is integrally formed with the signal cable, there is no need to provide a special space for the termination resistor within the receiving unit.

In addition, when connecting the terminal portion 6.7 on the receiving side to the receiving unit, by making it removable using a crimping means using a spring, it is possible to connect the terminal portion 6.7 of the receiving side to the receiving unit without having to move the terminating resistor. Cable connections can be easily changed from one receiving end to another.

FIG. 3 shows another embodiment of the invention.

In this embodiment, one signal transmission pattern 20 is provided on the surface of the tape fabric l, and one signal transmission pattern 21 is provided on the surface of the tape fabric l.
is provided on the inner layer of the tape fabric 1, and is stacked in the layer direction.

The signal transmission pattern 20 on the surface side is formed shorter than the signal transmission pattern 21 on the inner layer side, and both signal transmission patterns 20 and 21 are connected via a resistive pattern 22 made in the shape of a VIA hole. are doing.

23 and 24 are terminal portions provided on both sides of the signal transmission pattern 20. Further, 25 and 26 are terminal portions of the inner layer side signal transmission pattern 21 provided on the surface side outside the signal transmission pattern 20, and each terminal portion 25.2
6 are individually connected to each other via conductive VIA holes 27 and 28.

In this embodiment, the signal line C connecting the terminal portion 23, the signal transmission pattern 20, and the terminal portion 24, the terminal portion 25, the VIA hole 27, and the signal transmission pattern 2
1 and a signal line connecting the VIA hole 28 and the terminal portion 26. Then, connect the terminal portions 23° and 25 to the transmitting unit, and
By connecting the terminal portions 24 and 26 to the receiving unit, a resistor-terminated signal can be obtained from the receiving end portion as in the previous embodiment.

In particular, in this embodiment, two signal transmission patterns 20.
21 overlap in the layer direction, the width of the cable can be made narrower than in the previous embodiment. Therefore, wiring space can be further reduced and wiring can be performed efficiently.

In addition, in the above embodiment, an example was explained in which a signal transmission path for one bit consisting of two signal lines was formed on one tape fabric, but the present invention is not limited to this. Of course, it is possible to form a large number of signal transmission paths in parallel and use it for multi-bit signal transmission, and in that case, it is possible to more effectively reduce the space required to install a terminating resistor. Can be done.

In addition, when forming the signal transmission pattern, by creating a structure that can be bent, including the tape fabric, it is not necessary to align the connection surface on the transmission end side of the cable and the connection surface on the reception end side on the same plane. Therefore, it can also be used for signal transmission between units on different levels or between a movable unit and a stationary unit.

[Effects of the Invention] As explained above, according to the present invention, a tape fabric, a plurality of signal transmission patterns provided on the tape fabric, and a signal acquisition mechanism provided on the transmission end side thereof, , also has a signal extraction mechanism provided on the receiving end side, and a resistive pattern that electrically connects the signal transmission patterns using a resistor, and uses the resistive pattern near the receiving end side to transmit the signal. Since the resistance termination is performed on the cable, it is possible to reduce the space and effort required to install the termination resistor within the receiving unit. In addition, when changing the connection on the receiving end of the cable from one receiving end to another, it can be done easily and quickly without moving the terminating resistor, giving you greater flexibility in changing resistance values. It also has the effect of increasing the

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG. 2 is a perspective view showing its use, and FIG. 3 is a perspective view showing another embodiment of the invention. 1: Tape fabric 2, 3.20, 21: Signal transmission pattern 4.5, 6
, 7, 23, 24, 25.28: Terminal part 8.22: Resistive pattern 9.10.27.28: VIA hall 1 Transmitting unit board 12: Receiving unit board 13, 14.15.18: Signal wiring Pattern A, B, C
,D: Signal line

Claims (1)

[Claims] A tape fabric made of an insulating material, a plurality of signal transmission patterns provided on the surface or inner layer of the tape fabric, and a plurality of signal transmission patterns provided on the transmission end side of these signal transmission patterns. a signal take-in mechanism for taking in a signal from the outside; a signal take-out mechanism provided on the receiving end side of the signal transmission pattern and for taking out the signal to the outside;
A signal cable comprising: a resistive pattern that is provided on the surface or inner layer of the tape fabric and electrically connects any of the signal transmission patterns in the vicinity of the receiving end side using a resistance.