JP2005223201A - Flexible substrate for protecting between terminals and receptacle including the substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible substrate, having the function capable of protecting electronic equipment from damages caused by electrostatic, transient voltage, or the like, and to provide a receptacle which includes it. <P>SOLUTION: The flexible substrate for inter-terminals protection to which a first protective element 51 is provided has a first and a second connecting part 61, 62 connected to a first and a second terminal VBUS, and GND; a first wiring pattern 71 for connecting one end of the first connecting part 61 and the first protective element 51; and a second wiring pattern 72 for connecting the other end of the second connecting part 62 and the first protective element 51. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a flexible substrate for inter-terminal protection and a receptacle including the same.

  Known interface standards for transmitting differential signals include, for example, USB (Universal-Serial-Bus), IEEE 1394, and the like. Interfaces conforming to these standards are installed in various electronic devices. With the recent increase in demand for portable devices and the like, various electronic devices have been downsized. With the downsizing of electronic devices, in electronic devices equipped with the above-described interface, the wiring distance between a precision circuit such as an internal logic circuit and an interface (for example, a receptacle) is becoming shorter. As a result, a problem may occur in the electronic device due to external overvoltage or static electricity.

  Patent Document 1 discloses a method for protecting an electric device from an overvoltage. However, some receptacles mounted on small electronic devices have small dimensions, and it is difficult to apply the method described in Patent Document 1 to receptacles mounted on small electronic devices. Further, when the method described in Patent Document 1 is applied to a receptacle whose dimensions (dimensions) are defined by the interface standard, there is a possibility that the receptacle does not conform to the definition of the standard. From the above, it is difficult to apply the method of Patent Document 1 to the above-described interface.

Patent Document 2 describes a cable in which a common mode short coil is provided on a connector. If a protective element for protecting the electronic device from overvoltage is provided in the connector of the cable, the electronic device can be protected from overvoltage by connecting the cable to the receptacle. However, when this cable is disconnected from the electronic device, the terminal in the receptacle of the electronic device is not protected. In this case, the internal circuit of the electronic device may be destroyed due to static electricity from the outside.
JP-A-6-261449 JP 2001-85118 A

  The present invention has been made in view of the technical problems as described above, and an object of the present invention is to provide a flexible substrate having a function of protecting an electronic device from damage caused by static electricity or transient voltage, and the like. It is to provide a receptacle including.

  The present invention is an inter-terminal protection flexible board provided with a first protection element, wherein the first and second connection portions are connected to the first and second terminals, and the first connection portion is provided. And a first wiring pattern that connects one end of the first protection element, and a second wiring pattern that connects the second connection portion and the other end of the first protection element, The present invention relates to a flexible substrate for inter-terminal protection.

  Thereby, the flexible substrate for inter-terminal protection according to the present invention can provide a protective element between the first terminal and the second terminal.

  Further, the present invention may include at least one of an overvoltage protection element and a surge protection element as the first protection element.

  Thereby, the flexible substrate for inter-terminal protection according to the present invention can provide at least one of an overvoltage protection element and a surge protection element between the first terminal and the second terminal.

  In the present invention, the first protection element may be configured by connecting both the overvoltage protection element and the surge protection element in parallel.

  Further, the present invention provides a second protection element, a third connection for connecting to a third terminal, a third connection for connecting the third connection and one end of the second protection element. And the other end of the second protection element may be connected to the second connection portion.

  Thereby, the flexible substrate for inter-terminal protection according to the present invention can further provide a protective element between the third terminal and the second terminal.

  Further, the present invention provides a third protective element, a fourth connecting portion for connecting to a fourth terminal, a fourth connecting portion connecting the fourth connecting portion and one end of the third protective element. And the other end of the third protection element may be connected to the second connection portion.

  Thereby, the flexible substrate for inter-terminal protection according to the present invention can further provide a protective element between the fourth terminal and the second terminal.

  In addition, the present invention includes any one of the above-described flexible terminals for inter-terminal protection, the first part on the side connected to the plug, the dimensions of which are defined by a given interface standard, and the first part A receptacle including a second part which is the other part, wherein the protection element is provided in the second part, and includes a power supply terminal, a ground terminal, a first differential signal terminal, Two differential signal terminals, the power supply terminal is connected to the first connection part of the inter-terminal protection flexible board, and the ground terminal is the second connection part of the inter-terminal protection flexible board. May be connected.

  Thus, the receptacle according to the present invention can have a protective element between the power supply terminal and the ground terminal.

  In addition, the present invention includes the above-described inter-terminal protection flexible board, the dimension is defined by a given interface standard, and the first part on the side connected to the plug, and the other part of the first part A receptacle including a second part, wherein the protection element is provided in the second part, the power terminal, the ground terminal, the first differential signal terminal, and the second difference A power signal terminal connected to the first connection part of the inter-terminal protection flexible board, and the ground terminal connected to the second connection part of the inter-terminal protection flexible board. The first differential signal terminal may be connected to the third connection portion of the inter-terminal protection flexible board.

  Thereby, the receptacle according to the present invention can further include a protective element between the first differential signal terminal and the ground terminal.

  In addition, the present invention includes the above-described inter-terminal protection flexible board, the dimension is defined by a given interface standard, and the first part on the side connected to the plug, and the other part of the first part A receptacle including a second part, wherein the protection element is provided in the second part, the power terminal, the ground terminal, the first differential signal terminal, and the second difference A power signal terminal connected to the first connection part of the inter-terminal protection flexible board, and the ground terminal connected to the second connection part of the inter-terminal protection flexible board. The first differential signal terminal is connected to the third connection part of the inter-terminal protection flexible board, and the second differential signal terminal is the fourth connection of the inter-terminal protection flexible board. Even if connected to Good.

  Thereby, the receptacle according to the present invention can further include a protective element between the second differential signal terminal and the ground terminal.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. For example, in the following description of the embodiment, a USB (Universal-Serial-Bus) receptacle is shown, but the present invention is an IEEE 1394 which is an interface standard for performing data transfer using a differential signal (Differential-Signals). Etc. Furthermore, the present invention can also be applied to an interface having two or more terminals. Also, not all of the configurations described below are essential constituent requirements of the present invention.

1. First Embodiment FIG. 1 is a diagram illustrating a flexible substrate 10 according to a first embodiment. The flexible substrate 10 includes an inter-terminal protection element 51 (first protection element in a broad sense), an inter-terminal protection element 52 (second protection element in a broad sense), and an inter-terminal protection element 53 (third in a broad sense). Protective element) is provided. Each of the inter-terminal protection elements 51 to 53 includes a chip capacitor PC (capacitance element in a broad sense, overvoltage protection element in a broad sense) and a Zener diode PD (surge protection element in a broad sense). The chip capacitor PC and the Zener diode PD are connected in parallel. Further, the flexible substrate 10 includes a connection portion 61 (first connection portion in a broad sense), a connection portion 62 (second connection portion in a broad sense), a connection portion 63 (third connection portion in a broad sense), and A connecting portion 64 (fourth connecting portion in a broad sense) is provided.

  One end of the inter-terminal protection element 51 is connected to the connection portion 61 by a wiring 71 (first wiring pattern in a broad sense). The other end of the inter-terminal protection element 51 is connected to the connection portion 62 by a wiring 72 (second wiring pattern in a broad sense). One end of the inter-terminal protection element 52 is connected to the connection portion 63 by a wiring 73 (third wiring pattern in a broad sense). One end of the inter-terminal protection element 53 is connected to the connection portion 64 by a wiring 74 (fourth wiring pattern in a broad sense). In the following drawings, the same symbols indicate the same meaning.

  FIG. 2 is a schematic perspective view of the USB receptacle 100 according to the first embodiment. The receptacle 100 is an A receptacle defined by the USB standard. A terminal forming recess (also referred to as a terminal forming notch recess) 110 is formed on the bottom surface of the receptacle 100. The terminal forming recess 110 includes a power supply terminal VBUS (first terminal in a broad sense), a ground terminal GND (second terminal in a broad sense), a first differential signal terminal DP (third terminal in a broad sense), and This is a space for providing the second differential signal terminal DM (terminal 4 in a broad sense). Each terminal (VBUS, GND, DP, and DM) protrudes from the bottom surface (back wall) of the receptacle 100. The terminal formation recessed part 110 should just contain the at least 2 or more side wall surrounding the bottom face (back wall) which each terminal (VBUS, GND, DP, and DM) has penetrated and protruded. The receptacle 100 of FIG. 2 is a receptacle including a terminal forming recess 110 formed of, for example, three side walls formed vertically on a bottom surface through which each terminal (VBUS, GND, DP, and DM) protrudes. The terminal forming recess 110 may be formed of four side walls formed perpendicular to the bottom surface through which each terminal (VBUS, GND, DP, and DM) protrudes. In this case, a fourth wall surface not shown in FIG. 2 is provided, and through holes (or through grooves) through which the terminals (VBUS, GND, DP, and DM) pass are provided in the fourth wall surface. What is necessary is just to provide. The flexible substrate 10 is provided with a protection element, and further provided with N (for example, four) connection portions 61 to 64 for connection to each terminal (VBUS, GND, DP, and DM) (see FIG. 1). ). Each connection part 61-64 and each terminal are electrically connected by a connection member (a brazing material such as solder).

  FIG. 3 is a side view of the receptacle 100 of FIG. 2 as seen from the DR1 direction, with a part of the receptacle 100 cut away. A portion surrounded by a broken line C1 is a portion on the side where each terminal (VBUS, GND, DP, and DM) in FIG. 2 is provided (a second portion that is another portion of the first portion in a broad sense). . The portion indicated by reference sign D1 is the portion on the side where the plug is inserted (first portion in a broad sense), and the portion D1 is a portion whose dimensions (dimensions) are defined by the USB standard. That is, in the case of a receptacle that does not have a sufficient space for providing the flexible substrate 10 in the portion D1, it is difficult to provide the flexible substrate 10 in the portion D1. However, since the dimension indicated by the broken line C1 (second part in a broad sense) does not define dimensions in the USB standard, the flexible substrate 10 can be provided. If there is sufficient space in the portion D1, the flexible substrate 10 may be provided in D1. The flexible substrate 10 shown in FIG. 1 can be formed so as to fit within the space of the terminal forming recess 110 shown in FIG. Thereby, the receptacle 100 can be arranged on a circuit board or the like without considering the size of the flexible substrate 10. Note that the size of the flexible substrate 10 is not limited to this, and may not be a size that fits in the space of the terminal forming recess 110.

  FIG. 4 is a diagram showing a bottom surface of a portion surrounded by a broken line C1 shown in FIG. The connecting portion 61 of the flexible substrate 10 is connected to the power supply terminal VBUS by a connecting member 11 (a brazing material such as solder). The connecting portion 62 of the flexible substrate 10 is connected to the ground terminal GND by the connecting member 11. The connection part 63 of the flexible substrate 10 is connected to the first differential signal terminal DP by the connection member 11. The connection portion 64 of the flexible substrate 10 is connected to the first differential signal terminal DM by the connection member 11.

  The inter-terminal protection elements 51 to 53 of the flexible substrate 10 in FIG. 1 are provided with a chip capacitor PC and a Zener diode PD. Chip capacitors include multilayer chip capacitors. The Zener diode PD can be replaced with a surge absorber element such as a varistor.

  In an electronic device or the like provided with a receptacle, when static electricity is generated outside the electronic device, the conventional circuit cannot protect the internal circuit of the electronic device. In the case of a small electronic device, the wiring distance between the receptacle and an internal logic circuit such as an IC is inevitably shortened, so that damage caused by external static electricity is increased. However, in the receptacle according to the present embodiment, a Zener diode PD is provided between the power supply terminal VBUS and the ground terminal GND, between the first differential signal terminal DP and the ground terminal GND, and between the second differential signal terminal DM and the ground. It is provided between each of the terminals GND. Thereby, the internal IC and the like can be protected from external static electricity.

  Further, back electromotive force sometimes occurs when a plug is inserted or removed due to reactance of a cable connected to the receptacle or reactance of the receptacle itself. FIG. 5 is a graph showing the results of measuring the back electromotive force due to reactance. The waveform in FIG. 5 is a voltage waveform when a plug is inserted and removed from a receptacle in a cable having a resistance value of 40Ω, a reactance of 2500 nH (length: 500 cm × 5 nH / cm), and a capacity of 100 pF. From FIG. 5, it can be seen that a back electromotive force of about ± 5 V at maximum is generated when the plug is inserted and removed. That is, in the case of a small electronic device, since the wiring distance between the receptacle and the internal IC or the like is short, there is a high possibility that the back electromotive force will damage the internal IC or the like. Even in this case, the conventional receptacle is not provided with a protective function. However, since the receptacle according to the present embodiment is provided with the Zener diode PD as described above, the internal IC and the like can be protected from back electromotive force caused by plugging / unplugging. The receptacle itself also includes a reactance component. For this reason, when a protective element is provided on the part into which the plug is inserted or on the cable side, an electromotive force is generated by the reactance component of the receptacle itself when the plug is inserted or removed, which may damage the internal IC or the like. However, in this embodiment, since the chip capacitor PC and the Zener diode PD (protective element in a broad sense) are provided in a portion (second portion) not connected to the plug, the protective element and the internal IC or the like The reactance component between and becomes extremely small. That is, the internal IC and the like can be protected from counter electromotive force generated by, for example, plugging / unplugging.

  Further, in the USB standard, the voltage supplied to the power supply terminal VBUS is determined to be 4.75 V to 5.25 V, but there are some USB peripherals on the market that do not satisfy this standard. . Some of them temporarily supply a voltage of about 10 V to the power supply terminal VBUS. Conventional receptacles do not have a function of protecting internal ICs and the like from devices that do not satisfy these standards. However, in the receptacle according to the present embodiment, the chip capacitor PC includes the power supply terminal VBUS and the ground terminal GND, the first differential signal terminal DP and the ground terminal GND, and the second differential signal terminal DM. It is provided between each of the ground terminals GND. For this reason, the receptacle according to the present embodiment can protect the internal IC and the like from devices that do not satisfy these standards.

  This embodiment can also be applied to a B receptacle defined in the USB standard. FIG. 6 is a schematic side view in which a part of the receptacle 200 is cut away. The receptacle 200 is provided with the flexible substrate 10 shown in FIG. 1 on a B receptacle defined by the USB standard. A portion surrounded by a broken line C2 is a portion on the side where each terminal (power supply terminal VBUS, ground GND, first differential signal terminal DP, and second differential signal terminal DM) is provided (in a broad sense, the first A second part which is the other part of the part). The portion indicated by reference sign D2 is a portion on the side where the plug is inserted (first portion in a broad sense), and the portion D2 is a portion whose dimensions are defined by the USB standard. The flexible substrate 10 shown in FIG. 1 can also be connected to the receptacle 200.

  FIG. 7 is a diagram showing each terminal (VBUS, GND, DP, and DM) on the side indicated by a broken line C2 in FIG. 6, and is a diagram showing an example of connection when the flexible substrate 10 is applied to the receptacle 200. is there. As shown in FIG. 7, a part of each terminal (VBUS, GND, DP, and DM) is bent, and the flexible substrate 10 is provided in a part where all the terminals are arranged in a single plane. Each wiring 71 to 74 of the flexible substrate 10 is connected to each terminal (VBUS, GND, DP, and DM) by the connecting member 11. In this way, the receptacle 200, like the receptacle 100, is between the power supply terminal VBUS and the ground terminal GND, between the first differential signal terminal DP and the ground terminal GND, and between the second differential signal terminal DM and the ground terminal. Inter-terminal protection elements 51 to 53 (in FIG. 7, a chip capacitor PC and a Zener diode PD are provided in parallel) are provided between the GNDs.

  However, since the flexible substrate 10 is a flexible substrate, the flexible substrate 10 may be bent and connected to each terminal without bending each terminal. Note that the receptacle 200 has the same effect as the receptacle 100.

2. Second Embodiment FIG. 8 is a diagram showing a flexible substrate 20 having an inter-terminal protection element. The flexible substrate 20 is provided with an inter-terminal protection element 54 (first protection element in a broad sense). The inter-terminal protection element 54 is provided with a chip capacitor PC and a Zener diode PD in parallel. The flexible substrate 20 is provided with a connection portion 81 (first connection portion in a broad sense) and a connection portion 82 (second connection portion in a broad sense). One end of the inter-terminal protection element 54 is connected to the connection portion 81 by a wiring 91 (first wiring pattern in a broad sense). The other end of the inter-terminal protection element 54 is connected to the connection portion 82 by a wiring 92 (second wiring pattern in a broad sense). In the second embodiment, the flexible substrate 20 is provided in the receptacle.

  FIG. 9 is a schematic perspective view showing the receptacle 300 according to the second embodiment. The receptacle 300 is a receptacle in which a flexible substrate 20 is provided on a B receptacle defined in the USB standard. The connection portion 81 of the flexible substrate 20 is connected to the power supply terminal VBUS of the receptacle 300 by the connection member 11. Further, the connecting portion 82 of the flexible substrate 20 is connected to the ground terminal GND of the receptacle 300 by the connecting member 11. Thereby, the inter-terminal protection element 54 can be provided between the power supply terminal VBUS and the ground terminal GND, and the internal IC and the like can be protected from transient voltage and static electricity transmitted to the power supply terminal VBUS.

  FIG. 10 is a modification of the receptacle 300 of FIG. The power supply terminal VBUS and the ground terminal GND are wound and pressure-bonded so that the connection portions 81 and 82 of the flexible substrate 20 are indicated by reference numeral 14. The flexible substrate 20 may be connected as shown in FIG. This also applies to the embodiments described below.

  When it is necessary to provide an inter-terminal protection element between the first differential signal terminal DP and the ground terminal GND and between the second differential signal terminal and the ground terminal GND, a flexible substrate as shown in FIG. 20 may be provided. Thereby, internal IC etc. can be protected from a transient voltage or static electricity.

  The flexible substrate 20 can also be applied to an A receptacle defined by the USB standard. A receptacle 400 in FIG. 12 is a receptacle in which the flexible substrate 20 in FIG. 8 is provided on the A receptacle defined in the USB standard. For example, when a protective element is provided between the power supply terminal VBUS and the ground terminal GND, the connection portion 81 of the flexible substrate 20 is connected to the power supply terminal VBUS of the receptacle 400 as shown in FIG. 82 may be connected to the ground terminal GND of the receptacle 400. Each connection part 81 and 82 can be connected to each terminal by the connection member 11. As a result, the internal IC and the like can be protected from the transient voltage and static electricity transmitted to the power supply terminal VBUS.

  By using the flexible substrate 20 in FIG. 8, a protective element can be provided in a portion where the protective element is to be provided, so that it can be used for various applications.

3. Third Embodiment A polyswitch, a fuse element, or the like can be provided on the power supply terminal VBUS of the receptacle. The polyswitch is an element in which the temperature of the polyswitch rises and the terminals of the polyswitch are opened (off state) when the temperature reaches a predetermined temperature or higher. When the raised temperature falls below a predetermined temperature, the terminals of the polyswitch are again short-circuited (conducting state).

  FIG. 13 is a schematic perspective view showing a receptacle 500 according to the third embodiment. The receptacle 500 is a receptacle in which a polyswitch PS is provided at the power supply terminal VBUS of the receptacle 100 (see FIG. 2) of the first embodiment. This is a receptacle in which a polyswitch PS is provided at the power supply terminal VBUS of the A receptacle defined by the USB standard.

  One terminal of the polyswitch PS is connected to the power supply terminal VBUS by the connecting member 11. The other terminal of the polyswitch PS is used as the power supply terminal VBUS of the receptacle 500. Furthermore, the power supply terminal VBUS (the other terminal of the polyswitch PS) is connected to the connection portion 61 of the flexible substrate 10 in FIG. By providing the polyswitch PS on the power supply terminal VBUS, the internal IC and the like can be protected when the power supply terminal VBUS and the ground terminal GND are short-circuited.

  For example, when a plug is inserted into an A receptacle defined by the USB standard, if it is forcibly inserted in a direction opposite to the normal connection direction (hereinafter also referred to as reverse insertion), the power supply terminal VBUS and the ground terminal GND are shields of the A receptacle. As a result, the power supply terminal VBUS and the ground terminal GND are short-circuited. If this state is left unattended, a large current flows between the power supply terminal VBUS and the ground terminal GND, which may cause damage to the internal IC and the like. However, in this embodiment, a polyswitch PS is provided at the power supply terminal VBUS. The polyswitch PS is turned on / off according to the temperature characteristics. When the current flowing through the polyswitch PS increases, the temperature of the polyswitch PS increases, and when the temperature reaches a predetermined temperature or higher, the polyswitch PS is turned off. In other words, both terminals of the polyswitch PS become non-conductive, and the short state between the power supply terminal VBUS and the ground terminal GND is released. The polyswitch PS is turned on when the increased temperature of the polyswitch PS returns to a predetermined value or less. That is, both terminals of the polyswitch PS become conductive.

  In this way, the receptacle 500 can protect the internal IC and the like from damage due to short-circuiting (for example, due to reverse insertion) between the power supply terminal VBUS and the ground terminal GND in addition to damage caused by transient voltage or static electricity. it can.

  Although not shown, the polyswitch PS can also be provided on the power supply terminal VBUS of the receptacle 400 shown in FIG. 12 and the power supply terminal VBUS of the receptacle (see FIG. 7) provided with the flexible substrate 10. Accordingly, the receptacle 400 and the receptacle of FIG. 7 can protect the internal IC and the like from damage due to a short circuit (for example, due to reverse insertion) between the power supply terminal VBUS and the ground terminal GND.

  FIG. 14 is a schematic perspective view showing a receptacle 600 according to the third embodiment. The receptacle 600 is a receptacle in which a polyswitch PS is provided at the power supply terminal VBUS of the receptacle 300 (see FIG. 9) of the second embodiment. As a result, the receptacle 600 protects the internal IC and the like from damage caused by short-circuiting (for example, reverse insertion) between the power supply terminal VBUS and the ground terminal GND in addition to damage caused by transient voltage and static electricity transmitted to the power supply terminal VBUS. can do.

  FIG. 15 is a schematic perspective view showing a receptacle 700 according to the third embodiment. The receptacle 700 is a receptacle in which a polyswitch PS is provided at the power supply terminal VBUS of the receptacle (see FIG. 11) of the second embodiment. The receptacle 600 has the same effect as the receptacle 500 described above.

  Instead of the polyswitch PS, a fuse element may be provided at the power supply terminal VBUS of the receptacles 500, 600, and 700.

  The flexible boards 10 and 20 according to the first to third embodiments can be applied to a mini A receptacle, a mini B receptacle, and a mini AB receptacle defined by the USB standard. Since these small receptacles are often mounted on small electronic devices (for example, cellular phones, digital still cameras, digital video cameras, PDAs, portable music players, etc.), by applying the present invention, small electronic devices Can protect internal ICs from damage caused by transient voltage, static electricity, or short circuit. A small electronic device is extremely sensitive to damage from a transient voltage from outside, static electricity, short circuit, and the like because the wiring distance between the receptacle and the internal IC is particularly short in design. The effect of the present invention is particularly great in small electronic devices.

  The receptacles 100 and 200 are provided with a chip capacitor PC and a Zener diode PD for the purpose of surge protection and overvoltage protection. However, if there is no need for surge protection, the Zener diode PD may not be provided. Similarly, when there is no need for overvoltage protection, the chip capacitor PC need not be provided.

  Further, the receptacle described above is an example in which the flexible substrate 10 or 20 is provided, and the flexible substrate 10 or 20 can also be provided in a terminal such as an IC. Thereby, a protection function against overvoltage or static electricity can be easily provided between terminals to be protected such as IC.

  Moreover, each connection part 61-64, 81, 82 of the flexible substrate 10 or 20 may be connected to each terminal by metal bonding etc. other than a brazing material.

  The present invention is not limited to the one described in the above embodiment, and various modifications can be made. For example, terms cited as broad or synonymous terms in the description in the specification or drawings can be replaced with broad or synonymous terms in other descriptions in the specification or drawings.

The figure which shows the flexible substrate which concerns on 1st Embodiment. The schematic perspective view which shows the receptacle which concerns on 1st Embodiment. The side view of the receptacle which concerns on 1st Embodiment. The bottom view of the receptacle which concerns on 1st Embodiment. The wave form diagram showing the counter electromotive force which arises at the time of detachment | desorption of a plug. The side view of the other receptacle which concerns on 1st Embodiment. The figure which shows the example of a connection of the flexible substrate which concerns on 1st Embodiment. The figure which shows the flexible substrate which concerns on 2nd Embodiment. The schematic perspective view which shows the receptacle which concerns on 2nd Embodiment. The schematic perspective view which shows the other receptacle which concerns on 2nd Embodiment. The schematic perspective view which shows the other receptacle which concerns on 2nd Embodiment. The schematic perspective view which shows the receptacle which concerns on the modification of 2nd Embodiment. The schematic perspective view which shows the receptacle which concerns on 3rd Embodiment. The schematic perspective view which shows the other receptacle which concerns on 3rd Embodiment. The schematic perspective view which shows the other receptacle which concerns on 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Flexible board | substrate, 20 Flexible board | substrate, 51-54 Inter-terminal protection element, 61-64 connection part, 71-74 wiring, 81, 82 connection part, 91, 92 wiring 100 receptacle, 110 terminal formation recessed part, 200 receptacle, 300 receptacle , 400 receptacle, 500 receptacle, 600 receptacle, 700 receptacle, VBUS power supply terminal, GND ground terminal, DP first differential signal terminal, DM second differential signal terminal, PC chip capacitor, PD Zener diode, PS polyswitch

Claims (8)

A flexible substrate for protection between terminals provided with a first protection element,
First and second connecting portions for connecting to the first and second terminals to be protected;
A first wiring pattern for connecting the first connection portion and one end of the first protection element;
A flexible substrate for inter-terminal protection, comprising: the second connection portion and a second wiring pattern that connects the other end of the first protection element. In claim 1,
A flexible inter-terminal protection board comprising at least one of an overvoltage protection element and a surge protection element as the first protection element. In claim 2,
The flexible circuit board for terminal protection, wherein the first protection element is configured by connecting both the overvoltage protection element and the surge protection element in parallel. In any of claims 1 to 3,
A second protection element;
A third connection for connecting to a third terminal to be protected;
Including a third wiring pattern for connecting the third connection portion and one end of the second protection element;
A flexible substrate for inter-terminal protection, wherein the other end of the second protection element is connected to the second connection portion. In claim 4,
A third protection element;
A fourth connection for connecting to a fourth terminal to be protected;
Including a fourth wiring pattern for connecting the fourth connection portion and one end of the third protection element;
A flexible substrate for inter-terminal protection, wherein the other end of the third protection element is connected to the second connection portion. A first part comprising a flexible substrate for inter-terminal protection according to any one of claims 1 to 5, wherein a dimension is defined by a given interface standard, and is a side connected to a plug, and the first part A receptacle including a second part which is another part of the second part, wherein the protection element is provided in the second part,
Including a power supply terminal, a ground terminal, a first differential signal terminal, and a second differential signal terminal;
The power supply terminal is connected to the first connection portion of the inter-terminal protection flexible substrate,
The receptacle, wherein the ground terminal is connected to the second connection portion of the inter-terminal protection flexible substrate. A first part comprising a flexible board for terminal-to-terminal protection according to claim 4, wherein a dimension is defined by a given interface standard, and the side is connected to a plug, and A receptacle including a second part which is another part, wherein the protection element is provided in the second part,
Including a power supply terminal, a ground terminal, a first differential signal terminal, and a second differential signal terminal;
The power supply terminal is connected to the first connection portion of the inter-terminal protection flexible substrate,
The ground terminal is connected to the second connection portion of the inter-terminal protection flexible substrate,
The receptacle, wherein the first differential signal terminal is connected to the third connection portion of the inter-terminal protection flexible board. A first part comprising a flexible substrate for inter-terminal protection as defined in claim 5 and whose dimensions are defined by a given interface standard and which is connected to a plug, and other parts of the first part A receptacle including a second part, the second part being provided with the protection element,
Including a power supply terminal, a ground terminal, a first differential signal terminal, and a second differential signal terminal;
The power supply terminal is connected to the first connection portion of the inter-terminal protection flexible substrate,
The ground terminal is connected to the second connection portion of the inter-terminal protection flexible substrate,
The first differential signal terminal is connected to the third connection portion of the inter-terminal protection flexible substrate;
The receptacle, wherein the second differential signal terminal is connected to the fourth connection portion of the inter-terminal protection flexible substrate.

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