Terminal structure of plug and plug

Abstract

To realize a terminal structure of a plug and the plug capable of suppressing degradation in signal quality.SOLUTION: A terminal structure of a plug configured to be connectable to a receptacle connector conforming to a USB Type-C standard includes: a plug shell 2a which is inserted into a shell of the receptacle connector to be connected to a GND potential of a device; and a plurality of pins A1, A2,..., A12 and B1, B2,..., B12 which are provided corresponding to a plurality of pins of the receptacle connector so as to extend in an insertion / removal direction of the plug shell 2a. Among the plurality of pins A1, A2,..., A12 and B1, B2,..., B12, a first pin to which a first signal is assigned and a second pin to which a second signal of a type different from that of the first signal assigned to the first pin is assigned are different in distance from a GND surface of the plug shell 2a.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a terminal structure of a plug and a plug. [Background technology]

[0002] Patent Document 1 discloses a technology for transmitting high-frequency signals, such as received television broadcast waves, using a reversible connector that can be used even when the front and back of the plug are reversed (for example, Patent Document 1). Patent Document 1 below gives examples of reversible connectors such as USB Type-C (registered trademark) and Lightning (registered trademark). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2017 / 170419 Summary of the Invention [Problem to be solved by the invention]

[0004] In connectors that comply with the USB Type-C standard, the physical distance between each pin and the shell, which is connected to the device's GND potential, is constant. This means that it is not possible to obtain the optimal characteristic impedance for the type of signal assigned to each pin, which could result in a decrease in signal quality.

[0005] The present disclosure has been made in view of the above, and aims to realize a plug terminal structure and a plug that can suppress degradation of signal quality. [Means for solving the problem]

[0006] A plug terminal structure according to one aspect of the present disclosure is a plug terminal structure configured to be connectable to a receptacle connector conforming to the USB Type-C standard, and includes a plug shell that is connected to the GND potential of a device by being inserted into the shell of the receptacle connector, and a plurality of pins that extend in the insertion / removal direction of the plug shell corresponding to the plurality of pins of the receptacle connector, wherein a first pin assigned to a first signal and a second pin assigned to a second signal of a type different from the first signal assigned to the first pin are each at different distances from the GND surface of the plug shell.

[0007] This configuration allows the optimum characteristic impedance to be set for each of the multiple pins according to the type of signal assigned to each pin, thereby realizing a plug terminal structure and a plug that can suppress degradation of signal quality due to impedance mismatch.

[0008] A plug according to one aspect of the present disclosure has the terminal structure of the plug described above, and the pins for high-speed data communication are connected to common mode choke coils corresponding to pins for differential transmission.

[0009] This configuration can effectively suppress leakage of high-frequency electromagnetic noise due to high-speed data communication into power supply lines and low-speed signal lines. [Effects of the Invention]

[0010] According to the present disclosure, it is possible to realize a plug terminal structure and a plug that can suppress degradation of signal quality. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing an example of a connection mode of USB Type-C (registered trademark). [Figure 2] FIG. 2 is a vertical cross-sectional view of the connection mode of the USB Type-C as viewed from a direction perpendicular to the insertion / removal direction of the plug shell. [Figure 3A] FIG. 3A is a diagram showing the pin assignment of the USB Type-C in the shell of the receptacle connector. [Figure 3B] FIG. 3B is a diagram showing the pin assignment of the USB Type-C in the plug shell. [Figure 4] FIG. 4 is a schematic cross-sectional view showing an example of the terminal structure of the plug according to the first embodiment. [Figure 5] FIG. 5 is a schematic cross-sectional view showing an example of a terminal structure of a plug according to a first modified example of the first embodiment. [Figure 6] FIG. 6 is a schematic cross-sectional view showing an example of a terminal structure of a plug according to a second modification of the first embodiment. [Figure 7] FIG. 7 is a diagram showing an example of a circuit configuration of a plug according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] The terminal structure of a plug and the plug according to the embodiments will be described in detail below with reference to the drawings. Note that the present disclosure is not limited to these embodiments. Each embodiment is an example, and it goes without saying that partial substitution or combination of the configurations shown in different embodiments is possible. From embodiment 2 onwards, a description of matters common to embodiment 1 will be omitted, and only the differences will be described. In particular, similar effects resulting from similar configurations will not be mentioned in each embodiment.

[0013] Fig. 1 is a diagram showing an example of a connection mode of USB Type-C (registered trademark). Fig. 1 illustrates an example of a mode in which a plug body 1 is connected to a receptacle connector 4 provided on a device 100. In this disclosure, the plug body 1 and the receptacle connector 4 will be described as being compliant with the USB Type-C standard.

[0014] 1, the components inside the housing of the device 100 are indicated by dashed lines. The receptacle connector 4 is mounted on a substrate 5 and is connected to the GND potential of the device 100.

[0015] 2 is a longitudinal cross-sectional view of the USB Type-C connection as viewed from a direction perpendicular to the plug shell insertion / removal direction ID. When the plug shell 2a of the plug 2 is inserted into the shell 4a of the receptacle connector 4 provided in the device housing 101, the plug shell 2a is connected to the GND potential of the device 100.

[0016] A terminal portion 4b is provided inside a shell 4a of the receptacle connector 4. A terminal portion 2b is provided inside a plug shell 2a of the plug 2.

[0017] The terminal portion 4b is provided with a plurality of pins. The plurality of pins provided on the receptacle connector 4 are plate-shaped metal pieces extending in the insertion / removal direction ID of the plug shell 2a.

[0018] Terminal portion 2b is provided with a plurality of pins corresponding to the plurality of pins provided on receptacle connector 4. The plurality of pins provided on plug 2 are leaf spring-shaped metal pieces extending in the insertion / removal direction ID of plug shell 2a.

[0019] When the plug shell 2a of the plug 2 is inserted into the shell 4a of the receptacle connector 4, the plate-shaped pins of the terminal portion 4b come into contact with the plate-shaped pins of the terminal portion 2b.

[0020] FIG. 3A is a diagram showing the pin assignment of a USB Type-C connector in the shell of a receptacle connector. FIG. 3B is a diagram showing the pin assignment of a USB Type-C connector in the plug shell. Each of FIG. 3A and FIG. 3B illustrates the pin assignment as viewed from the Z direction. In FIG. 3A, the components of the plug 2 are indicated by dashed lines. In FIG. 3B, the components of the receptacle connector 4 are indicated by dashed lines.

[0021] As shown in FIG. 3A, on one side of terminal portion 4b of receptacle connector 4, a first array of pins A1, A2, ..., A12 is arranged in the X direction, and on the other side of terminal portion 4b of receptacle connector 4, a second array of pins B1, B2, ..., B12 is arranged in the opposite direction to the X direction.

[0022] As shown in FIG. 3B , terminal portion 2b of plug 2 has a first arrangement of A1 pins, A2 pins, ..., A12 pins aligned in the X direction, corresponding to a first arrangement of A1 pins, A2 pins, ..., A12 pins provided on one side of terminal portion 4b of receptacle connector 4, and a second arrangement of B1 pins, B2 pins, ..., B12 pins aligned in the opposite direction to the X direction, corresponding to a second arrangement of B1 pins, B2 pins, ..., B12 pins provided on the other side of terminal portion 4b of receptacle connector 4.

[0023] In the following description, the pins in the first array arranged in the X direction and provided on the terminal portion 2b of the plug 2 will be referred to as "A1 pin, A2 pin, ..., A12 pin," and the pins in the second array arranged in the opposite direction to the X direction and provided on the terminal portion 2b of the plug 2 will be referred to as "B1 pin, B2 pin, ..., B12 pin."

[0024] Pins A1, A12, B1, and B12 are pins for GND potential. Hereinafter, pins A1, A12, B1, and B12 will also be referred to as "GND pins."

[0025] The A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins are differential transmission pins used for high-speed data communication (data transmission speed of 5 Gbps) that conforms to at least the USB Type-C SuperSpeed ​​standard. The A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins are assigned as TX1+ / TX1-, RX2- / RX2+, TX2+ / TX2-, and RX1- / RX1+, respectively. The A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins are also assigned as pins for alternate mode. The A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins may be configured to be usable for high-speed data communication (data transmission speed of 10 Gbps) compliant with the USB Type-C SuperSpeedPlus standard, or for high-speed data communication of 20 Gbps or more (USB4). Hereinafter, the A2 / A3 pins and B2 / B3 pins will also be referred to as "TX pins," and the A10 / A11 pins and B10 / B11 pins will also be referred to as "RX pins." The TX pins and RX pins will also be referred to collectively as "TX / RX pins."

[0026] The A4, A9, B4, and B9 pins are assigned as pins for bus power (Vbus) supply (power supply). Hereinafter, the A4, A9, B4, and B9 pins will also be referred to as "Vbus pins."

[0027] The A5 and B5 pins are pins for transmitting a CC (Configuration Channel) signal used to distinguish between the host and the device. Hereinafter, the A5 and B5 pins will also be referred to as "CC pins."

[0028] The A6 / A7 pins are differential transmission pins used for non-high-speed data communication compliant with the USB Type-A standard. The A6 / A7 pins are assigned as D+ / D- pins. Hereinafter, the A6 / A7 pins will also be referred to as "D pins."

[0029] The A8 and B8 pins are assigned as pins for transmitting sideband (SBU) signals used in alternate mode and audio adapter accessory mode. Hereinafter, the A8 and B8 pins will also be referred to as "SBU pins."

[0030] The B6 / B7 pins correspond to the B6 / B7 pins of the terminal section 4b of the receptacle connector 4, and are no-connect (NC) pins in the terminal section 2b of the plug 2. Hereinafter, the B6 / B7 pins will also be referred to as "NC pins."

[0031] Each signal handled by USB has a specified characteristic impedance according to its type. Specifically, the impedance of low-speed signal lines such as CC pins (A5 pins, B5 pins) and SBU pins (A8 pins, B8 pins) is set to 50 ohms. On the other hand, the Vbus pins (A4, A9, B4, B9 pins) used for bus power (Vbus) supply (power supply) should have as low an impedance as possible from the perspective of transmission efficiency.

[0032] For example, the differential impedance value specified in the USB Type-A standard is 90 Ω (±20 Ω), and the differential impedance value specified in the USB Type-C standard is 85 Ω (±9 Ω). In other words, the optimal impedance value with respect to the GND potential of the D pins (A6 / A7 pins) used for non-high-speed data communication compliant with the USB Type-A standard and the NC pins (B6 / B7 pins) that must support non-high-speed data communication compliant with the USB Type-A standard similar to the D pins (A6 / A7 pins) is 45 Ω. The optimal impedance value with respect to the GND potential of the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, B10 / B11 pins) used for high-speed data communication (data transmission rate of 5 Gbps) compliant with at least the USB Type-C SuperSpeed ​​standard is 42.5 Ω.

[0033] In particular, if these data transmission pins are not optimized to have characteristic impedances that conform to their respective standards, reflections may occur at the contact boundary surface between terminal portion 4b of receptacle connector 4 and terminal portion 2b of plug 2, and electromagnetic waves may leak into low-speed signal lines such as the power supply line (Vbus) or CC / SUB. Below, we will explain a configuration that can suppress degradation of signal quality due to such impedance mismatch.

[0034] (Embodiment 1) Fig. 4 is a schematic cross-sectional view showing an example of the terminal structure of the plug according to embodiment 1. In the example of the terminal structure of the plug according to embodiment 1, as shown in Fig. 4, distances dA1, dA2, ..., dA12 from the GND surface of the plug shell 2a (the surface facing each pin in the Y direction) are varied depending on the type of signal assigned to each pin.

[0035] In the present disclosure, the position in the Z direction at which the distances dA1, dA2, ..., dA12 from the GND surface of the plug shell 2a (the surface facing each pin in the Y direction) are made different is the position of line AA, which is a certain distance r away from the front end portion 2c of the plug shell 2a, as shown in Fig. 2. More specifically, the distance r from the front end portion 2c of the plug shell 2a is set to about 70% of the length L of the plug shell 2a in the Z direction. Fig. 4 shows an example of a cross-sectional view taken along the arrow AA line.

[0036] Specifically, for example, when press-forming the plug shell 2a, by varying the thicknesses tA1, tA2, ..., tA12 in the Y direction that face each pin of the plug shell 2a along the insertion / removal direction (Z direction) of the plug shell 2a, it is possible to vary the distances dA1, dA2, ..., dA12 from the GND surface of the plug shell 2a corresponding to each pin.

[0037] More specifically, in the present disclosure, the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins) used for high-speed data communication (data transmission rate of 5 Gbps) that complies with at least the USB Type-C SuperSpeed ​​standard have greater distances dA2, dA3, dA10, dA11, dB2, dB3, dB10, dB11 from the GND surface of the plug shell 2a than the Vbus pins (A4, A9, B4, B9 pins) for bus power (Vbus) supply (power supply).

[0038] In other words, in the present disclosure, the Y-direction thicknesses tA2, tA3, tA10, tA11, tB2, tB3, tB10, tB11 of the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins) used for high-speed data communication (data transmission rate of 5 Gbps) compliant with at least the USB Type-C SuperSpeed ​​standard and facing the insertion / removal direction (Z direction) of the plug shell 2a are made thicker than the Y-direction thicknesses tA4, tA9, tB4, tB9 of the Vbus pins (A4, A9, B4, B9 pins) for bus power (Vbus) supply (power supply) facing the insertion / removal direction (Z direction) of the plug shell 2a.

[0039] In addition, in the present disclosure, the Vbus pins (A4, A9, B4, B9 pins) for bus power (Vbus) supply (power supply) have smaller distances dA4, dA9, dB4, dB9 from the GND surface of the plug shell 2a than the other pins other than the Vbus pins.

[0040] In other words, in the present disclosure, the thicknesses tA4, tA9, tB4, and tB9 in the Y direction that face the Vbus pins (pins A4, A9, B4, and B9) for bus power (Vbus) supply (power supply) along the insertion / removal direction (Z direction) of the plug shell 2a are made thicker than the other pins excluding the Vbus pins.

[0041] In addition, in the present disclosure, the D pins (A6 / A7 pins) used for non-high-speed data communication compliant with the USB Type-A standard, and the NC pins (B6 / B7 pins) that need to be compatible with non-high-speed data communication compliant with the USB Type-A standard similar to the D pins (A6 / A7 pins), have greater distances dA6, dA7, dB6, dB7 from the GND surface of the plug shell 2a than the Vbus pins (A4, A9, B4, B9 pins) used for bus power (Vbus) supply (power supply), and have smaller distances dA6, dA7, dB6, dB7 from the GND surface of the plug shell 2a than the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins) used for high-speed data communication (data transmission rate of 5 Gbps) compliant with at least the USB Type-C SuperSpeed ​​standard.

[0042] In other words, in the present disclosure, thicknesses tA6, tA7, tB6, and tB7 in the Y direction that face the D pins (A6 / A7 pins) used for non-high-speed data communication conforming to the USB Type-A standard and the NC pins (B6 / B7 pins) that need to be compatible with non-high-speed data communication conforming to the USB Type-A standard similar to the D pins (A6 / A7 pins) and the plug shell 2a in the insertion / removal direction (Z direction) are at least The thicknesses are thicker than the Y-direction thicknesses tA2, tA3, tA10, tA11, tB2, tB3, tB10, tB11 that face the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins) used for high-speed data communication (data transmission speed 5Gbps) compliant with the Type-C SuperSpeed ​​standard and that face the insertion / removal direction (Z direction) of the plug shell 2a, and are thinner than the Y-direction thicknesses tA4, tA9, tB4, tB9 that face the Vbus pins (A4, A9, B4, B9 pins) for bus power (Vbus) supply (power supply) and that face the insertion / removal direction (Z direction) of the plug shell 2a.

[0043] In addition, in the present disclosure, the CC pins (A5 and B5 pins) for transmitting a CC (Configuration Channel) signal used for host / device discrimination, and the SBU pins (A8 and B8 pins) for transmitting a sideband (SBU) signal used in alternate mode and audio adapter accessory mode have greater distances dA5, dA8, dB5, and dB8 from the GND surface of the plug shell 2a than the Vbus pins (A4, A9, B4, and B9 pins) for supplying bus power (Vbus), and have smaller distances dA5, dA8, dB5, and dB8 from the GND surface of the plug shell 2a than the D pins (A6 / A7 pins) used for non-high-speed data communication compliant with the USB Type-A standard, and the NC pins (B6 / B7 pins) that need to support non-high-speed data communication compliant with the USB Type-A standard similar to the D pins (A6 / A7 pins).

[0044] In other words, in the present disclosure, the Y-direction thicknesses tA5, tA8, tB5, and tB8 of the CC pins (A5 and B5 pins) for transmitting a Configuration Channel (CC) signal used for host / device discrimination and the SBU pins (A8 and B8 pins) for transmitting a sideband (SBU) signal used in alternate mode and audio adapter accessory mode, which oppose each other along the insertion / removal direction of the plug shell 2a (Z direction), are thicker than the D pins (A6 / A7 pins) used for non-high-speed data communication conforming to the USB Type-A standard and the NC pins (B6 / B7 pins) that need to support non-high-speed data communication conforming to the USB Type-A standard similar to the D pins (A6 / A7 pins), and are thinner than the Y-direction thicknesses tA4, tA9, tB4, and tB9 of the Vbus pins (A4, A9, B4, and B9 pins) for supplying bus power (Vbus) (power supply) which oppose each other along the insertion / removal direction of the plug shell 2a (Z direction).

[0045] In the terminal structure of the plug according to the first embodiment, for example, when the plug shell 2a is press-formed, the thicknesses tA1, tA2, . . . , tA12 of the Y-direction facing each pin of the plug shell 2a along the insertion / removal direction (Z-direction) of the plug shell 2a are varied, and the distances dA1, dA2, . . . , dA12 of the Y-direction facing the GND surface (the surface facing each pin in the Y-direction) of the plug shell 2a are varied, thereby enabling an optimal characteristic impedance for each signal type. The thicknesses tA1, tA2, . . . , tA12 of the Y-direction facing each pin of the plug shell 2a along the insertion / removal direction (Z-direction) of the plug shell 2a may be set so as to obtain a characteristic impedance optimized for the type of signal assigned to each pin in the USB Type-C connection mode shown in FIG.

[0046] This makes it possible to suppress a decrease in transmission efficiency at the Vbus pins (A4, A9, B4, B9 pins) for bus power (Vbus) supply (power supply), reflections at the contact boundary surface between terminal portion 4b of receptacle connector 4 and terminal portion 2b of plug 2 of the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, B10 / B11 pins) and D pin (A6 / A7 pin) for data transmission, and electromagnetic wave leakage into low-speed signal lines such as the power supply line (Vbus) and CC / SUB, and realize a plug terminal structure and plug that can suppress a decrease in signal quality due to impedance mismatch.

[0047] In the above-described first embodiment, for example, when the plug shell 2a is press-formed, the thicknesses tA1, tA2, . . . , tA12 in the Y direction that face each pin of the plug shell 2a along the insertion / removal direction (Z direction) of the plug shell 2a are made different, thereby making the distances dA1, dA2, . . . , dA12 from the GND surface of the plug shell 2a corresponding to each pin different. However, the present invention is not limited to this. Modified examples of the terminal structure of the plug will be described below.

[0048] (First Modification) 5 is a schematic cross-sectional view showing an example of a terminal structure of a plug according to a first modified example of the first embodiment. For example, as shown in FIG. 5, by varying the position of each pin in the Y direction within the plug shell 2a, distances dA1, dA2, . . . , dA12 from the GND surface (the surface facing each pin in the Y direction) of the plug shell 2a may be varied depending on the type of signal assigned to each pin. The position of each pin in the Y direction within the plug shell 2a may be determined so as to obtain a characteristic impedance optimized for the type of signal assigned to each pin in the USB Type-C connection mode shown in FIG.

[0049] (Second Modification) Fig. 6 is a schematic cross-sectional view showing an example of the terminal structure of a plug according to a second modified example of embodiment 1. For example, as shown in Fig. 6, by pressing a metal plate of uniform thickness, distances dA1, dA2, ..., dA12 from the GND surface of the plug shell 2a (the surface facing each pin in the Y direction) may be varied depending on the type of signal assigned to each pin.

[0050] (Embodiment 2) Fig. 7 is a diagram showing an example of the circuit configuration of a plug according to embodiment 2. In the configuration shown in Fig. 7, common mode choke coils CC1, CC2, CC3, and CC4 are connected to TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins) for differential transmission used for high-speed data communication (data transmission rate of 5 Gbps) conforming to at least the SuperSpeed ​​standard. It is desirable that the common mode choke coils CC1, CC2, CC3, and CC4 have a configuration compatible with high-speed data communication (USB4) of, for example, 20 Gbps or more.

[0051] By providing common mode choke coils CC1, CC2, CC3, and CC4 corresponding to the TX / RX pins (A2 / A3 pins, A10 / A11 pins, B2 / B3 pins, and B10 / B11 pins), it is possible to cancel out common mode noise in the differential transmission lines. This effectively suppresses the leakage of high-frequency electromagnetic noise caused by high-speed data communication into low-speed signal lines such as the power supply line (Vbus) and CC / SUB.

[0052] 7, common mode choke coils CC1, CC2, CC3, and CC4 are provided inside the plug housing 3 of the plug body 1. This makes it possible to more effectively suppress leakage of high-frequency electromagnetic noise due to high-speed data communication into the power supply line (Vbus) and low-speed signal lines such as CC / SUB.

[0053] The above-described embodiments are intended to facilitate understanding of the present disclosure and are not intended to limit the present disclosure. The present disclosure may be modified or improved without departing from the spirit thereof, and equivalents thereof are also included in the present disclosure.

[0054] Furthermore, the present disclosure can have the following configurations as described above or instead of the above.

[0055] (1) A plug terminal structure according to one aspect of the present disclosure is a plug terminal structure configured to be connectable to a receptacle connector conforming to the USB Type-C standard, and includes: a plug shell that is connected to the GND potential of a device by being inserted into the shell of the receptacle connector; and a plurality of pins that extend in the insertion / removal direction of the plug shell and correspond to the plurality of pins of the receptacle connector, wherein a first pin assigned with a first signal and a second pin assigned with a second signal of a type different from the first signal assigned to the first pin are each at a different distance from the GND surface of the plug shell.

[0056] This configuration allows the optimum characteristic impedance to be set for each of the multiple pins according to the type of signal assigned to each pin, thereby realizing a plug terminal structure and a plug that can suppress degradation of signal quality due to impedance mismatch.

[0057] (2) In the terminal structure of the plug described in (1) above, the thicknesses of the plug shell at the locations facing the pins along the insertion / removal direction of the plug shell are different, at least at a position a certain distance from the end of the plug shell.

[0058] In this configuration, when the plug shell is pressed, a characteristic impedance optimized for the type of signal assigned to each pin is obtained.

[0059] (3) In the terminal structure of the plug described above in (1) or (2), among the multiple pins, at least the pin for high-speed data communication conforming to the SuperSpeed ​​standard has a greater distance from the GND surface of the plug shell than the Vbus pin for power supply.

[0060] This configuration can suppress reflections at the contact boundary surface between the receptacle connector of the pin for high-speed data communication and the plug, as well as electromagnetic wave leakage to the power supply line.

[0061] (4) In the terminal structure of the plug described above in (1) to (3), among the multiple pins, the Vbus pin for power supply has a smaller distance from the GND surface of the plug shell than the other pins other than the Vbus pin.

[0062] This configuration allows for lower impedance at the Vbus pin for power supply, thereby preventing a decrease in bus power transmission efficiency.

[0063] (5) In a plug having the terminal structure of any one of (1) to (4) above, the pins for high-speed data communication are connected to common mode choke coils corresponding to pins for differential transmission.

[0064] This configuration can effectively suppress leakage of high-frequency electromagnetic noise due to high-speed data communication into power supply lines and low-speed signal lines.

[0065] (6) In the plug of (5) above, the common mode choke coil is provided inside the plug housing.

[0066] This configuration can more effectively suppress leakage of high-frequency electromagnetic noise due to high-speed data communication into power supply lines and low-speed signal lines.

[0067] The present disclosure makes it possible to realize a plug terminal structure and a plug that can suppress degradation of signal quality. [Explanation of symbols]

[0068] 1 plug body 2 plugs 2a plug shell 2b Terminal section 3 Plug Housing 4 Receptacle Connector 4a Shell (Receptacle Connector) 4b Terminal part (receptacle connector) 5 Board (equipment) 100 equipment 101 Equipment housing CC1, CC2, CC3, CC4 Common mode choke coils

Claims

1. A plug terminal structure configured to be connectable to a receptacle connector conforming to the USB Type-C standard, a plug shell that is inserted into the shell of the receptacle connector to be connected to a ground potential of the device; a plurality of pins extending in the insertion / removal direction of the plug shell in correspondence with the plurality of pins of the receptacle connector; Equipped with Among the plurality of pins, a first pin to which a first signal is assigned and a second pin to which a second signal of a type different from the first signal assigned to the first pin are assigned have different distances from a GND surface of the plug shell. Plug terminal structure.

2. The plug terminal structure according to claim 1, the plug shell has different thicknesses at portions facing the pins along the insertion / removal direction of the plug shell at least at positions spaced a certain distance from an end of the plug shell; Plug terminal structure.

3. The plug terminal structure according to claim 2, Among the plurality of pins, at least a pin for high-speed data communication conforming to the SuperSpeed ​​standard has a greater distance from the GND surface of the plug shell than a Vbus pin for power supply. Plug terminal structure.

4. The plug terminal structure according to claim 3, Among the plurality of pins, a Vbus pin for power supply has a smaller distance from the GND surface of the plug shell than other pins other than the Vbus pin. Plug terminal structure.

5. A plug having the terminal structure of a plug according to claim 3 or 4, The pin for high-speed data communication is connected to a common mode choke coil corresponding to a pin for differential transmission. plug.

6. 6. The plug according to claim 5, The common mode choke coil is provided in a plug housing. plug.

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