JP2018063889A - Connector structure and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cable communication quality and antenna gain.SOLUTION: A connector structure includes an element switching circuit (130) that, when a plug (200) is inserted into a receptacle shell (110), short-circuits the receptacle shell (110) and a terminal substrate GND (120), or selects either a path connecting the receptacle shell (110) with the terminal substrate GND (120) via a direct current component cut-off element, or a path connecting the receptacle shell (110) with the terminal substrate GND (120) via a high-frequency cut-off element, and when the plug (200) is not inserted into the receptacle shell (110), does not short-cut the receptacle shell (110) with the terminal substrate GND (120), or selects a path connecting the receptacle shell (110) with the terminal substrate GND (120) via a high-frequency cut-off element the same as or different from the above-described high-frequency cut-off element.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector structure including a conductive receiving portion into which a plug is inserted, and an electronic device including the connector structure.

  In recent years, electronic devices having a connector into which a plug of a cable used for the USB (Universal Serial Bus) standard is inserted have become widespread. Patent Document 1 discloses an electronic apparatus including such a connector. The connector included in the electronic device includes a power supply terminal, a ground terminal, and a conductive outer shell portion (receiving portion: receptacle shell) that forms an outer shell of the connector. In addition, this electronic device protects the electronic device from an overcurrent caused by a short circuit abnormality between the outer shell portion and the power supply terminal by providing an overcurrent protection element between the outer shell portion and the ground electrode.

JP 2015-23699 A (published February 2, 2015)

  In recent years, with the improvement of the WiFi (registered trademark) environment, portable electronic devices having a wireless function have been increasing. Such portable electronic devices are often desired to be miniaturized in order to improve portability, and an antenna for wireless communication is often disposed near the USB terminal.

  However, in the above-described conventional technology, prevention of a short circuit between the power supply terminal and the outer shell portion of the USB connector is considered, but improvement of wired communication quality through the USB connector and antenna gain in wireless communication is not considered. For example, when the noise blocking effect by the outer shell of the USB connector is insufficient, noise radiated from a wired communication terminal (plug) such as a USB terminal or external noise affects the wired communication quality, or conversely When an unnecessary radio wave enters the ground from the outer shell portion of the USB connector connected to, the antenna gain in wireless communication is affected and the wireless communication quality is deteriorated. However, Patent Document 1 does not describe any countermeasures against these problems.

  The present invention has been made in view of the above problems, and an object of the present invention is to realize a connector structure and the like that can improve wired communication quality and antenna gain.

  In order to solve the above problems, a connector structure according to one aspect of the present invention is a connector structure including a conductive receiving portion into which a plug is inserted, and the plug is inserted into the receiving portion. In this case, the receiving part and the ground electrode of the terminal board are short-circuited, or a path connecting the receiving part and the ground electrode with a DC component cut element, or the receiving part and the ground electrode. When the path is connected with a high-frequency cutoff element and the plug is not inserted into the receiving part, the receiving part and the ground electrode are not short-circuited, or the receiving part And a grounding electrode, wherein a switching unit is provided for selecting a path connecting the high-frequency cutoff element that is the same as or different from the high-frequency cutoff element.

  According to one embodiment of the present invention, it is possible to improve wired communication quality and antenna gain.

It is a block diagram which shows the whole structure of the electronic device which concerns on one Embodiment of this invention. It is a flowchart which shows operation | movement of the connector part which concerns on Embodiment 1 of this invention, and a figure which shows the change of the structure of the said connector part and its modification. It is a figure which shows the flowchart which shows operation | movement of the connector part which concerns on Embodiment 2 of this invention, and the change of the structure of the said connector part. It is a figure which shows the operation | movement of the modification of the connector part which concerns on Embodiment 2 of this invention, and the change of the structure of the said connector part. It is a figure which shows the flowchart which shows operation | movement of the connector part which concerns on Embodiment 3 of this invention, and the structure of the said connector part. It is a flowchart which shows operation | movement of the connector part which concerns on Embodiment 4 of this invention, and the figure which shows the structure of the change of the structure of the said connector part, and the structure of the modification of the said connector part. It is a figure which shows the flowchart which shows operation | movement of the connector part which concerns on Embodiment 5 of this invention, and the structure of the said connector part. It is a figure which shows the operation | movement of the modification of the connector part which concerns on Embodiment 5 of this invention, and the change of the structure of the said connector part.

[Outline of Structure of Electronic Device According to One Embodiment of the Present Invention]
First, an overview of the overall configuration of the electronic apparatus 1000 according to an embodiment of the present invention will be described. FIG. 1 is a block diagram showing the overall structure of the electronic device 1000. Examples of the electronic device 1000 include, but are not limited to, a smartphone, a mobile phone, a tablet PC (Personal Computer), a PDA (Personal Digital Assistance), and a PC.

  As shown in FIG. 1, the electronic device 1000 includes a connector unit (connector structure) 100 and an antenna connected to the wireless communication unit. Further, the connector unit 100 includes a receptacle shell (receiving unit) 110, a terminal board GND (ground electrode) 120, and an element switching circuit (switching unit) 130. The receptacle shell 110 is a conductive outer shell that forms the outer shell of the connector. A plurality of electrodes are arranged on the back side of the receptacle shell 110, and some of them are connected to the wired communication unit and the charging circuit. The electronic apparatus 1000 includes other components such as a display in addition to the connector unit 100 and the antenna. However, these configurations are not related to the essence of the present invention, and thus the description thereof is omitted here. .

  The terminal board GND 120 is a ground electrode formed on the board on the terminal side of the electronic device 1000. The element switching circuit 130 includes a plurality of paths A to D between the receptacle shell 110 and the terminal board GND 120, and these paths can be switched by a switch. The path A is a path for short-circuiting (conducting) between the receptacle shell 110 and the terminal board GND 120. The path B is a path (first path) for connecting the receptacle shell 110 and the terminal board GND 120 with a high-frequency cutoff element such as a choke coil. The path C is a path (second path) for connecting the receptacle shell 110 and the terminal board GND 120 with a direct current (DC) component cut element. The path D is a path for non-short-circuiting (non-conduction) between the receptacle shell 110 and the terminal board GND 120.

  According to the structure of the connector unit 100 described above, an electrical shield is strengthened by a short circuit between the receptacle shell 110 and the terminal board GND 120 at the time of wired communication such as data communication or charging. The influence of noise can be reduced, and the noise radiated from the plug 200 can be reduced. Further, when wired communication is not used, the antenna gain as a wireless communication terminal is improved by selecting a path in which the receptacle shell 110 and the terminal board GND 120 are not short-circuited or a high-frequency cutoff element is inserted. Can be made. Conventionally, the presence of the receptacle shell 110 of the wired terminal has a trade-off relationship in improving the wired communication quality and the antenna gain. However, according to the structure of the connector unit 100 described above, according to the usage status of the terminal, Optimal communication quality can be maintained.

Embodiment 1
Next, based on FIG. 2, the operation | movement and the change of a structure of the connector part 100 which concern on Embodiment 1 of this invention are demonstrated. FIG. 2A is a flowchart illustrating the operation of the connector unit 100 according to the first embodiment. 2B to 2D are diagrams showing changes in the structure of the connector unit 100 according to the first embodiment.

  First, at the start of operation, as shown in FIG. 2B, the connector 200 is in a state (initial state) before the plug 200 is inserted. Here, the plug 200 includes a cable 210, a wired terminal 220, and a shield layer 230 of a wired cable. On the other hand, the connector part 100 is composed of a receptacle shell 110 and a terminal board GND 120, and the receptacle shell 110 and the terminal board GND 120 are in a non-shorted (non-conducting) state. In addition, a part of the surface (the bottom surface of the receptacle shell 110) facing the first opening 110 </ b> A of the receptacle shell 110 is also in an open state (second opening 110 </ b> B). Part) 111 is extended. As shown in FIG. 2D, the spring portion 111 includes a protruding portion 112 protruding toward the first opening 110A side, and a protruding portion 113 (tip portion) protruding toward the opposite side to the first opening 110A side. And a spring shape with Further, the protruding portion 113 is not in contact with any part of the terminal board GND 120 in the initial state. As described above, since the receptacle shell 110 and the terminal board GND 120 are not short-circuited (conducted), an unnecessary radio wave enters the terminal board GND 120 via the receptacle shell 110, so that a current having a phase opposite to that of the antenna is grounded. It is possible to prevent an electric field that weakens the flow and antenna communication. As a result, the antenna gain can be improved, and the wireless communication quality by the wireless communication unit can be improved.

  Next, in step S (hereinafter, “step” is omitted) 200 shown in the flowchart of FIG. 2A, if the plug 200 is inserted into the receptacle shell 110, the determination becomes YES, and the process proceeds to S201. On the other hand, when the plug 200 is not inserted into the receptacle shell 110, it returns to its original state. In S201, the plug 200 is inserted into the receptacle shell 110 [(c) of FIG. 2]. When the plug 200 is inserted, the projecting portion 113 of the spring portion 111 of the receptacle shell 110 is pushed out by being deformed by spring toward the terminal board GND 120 side, contacts the terminal board GND 120, and between the receptacle shell 110 and the terminal board GND 120. Becomes a short circuit state (conductive state). As a result, the shielding effect is enhanced, noise during wired communication can be effectively reduced, and wired communication quality can be improved.

  Next, in S202, if the plug 200 is removed from the receptacle shell 110, the determination becomes YES and the process proceeds to S203. On the other hand, if the plug 200 has not been removed from the receptacle shell 110, the determination becomes NO and the process returns to S201.

  In S203, since the stress applied to the protruding portion 113 of the receptacle shell 110 is eliminated, the spring deforms in the opposite direction to that in S201, and returns to the same state as the initial state before S200. At this time, the positional relationship between the plug 200 and the receptacle shell 110 is the same as in FIG.

  In the present embodiment, the form in which the single spring portion 111 is provided at one location of the receptacle shell 110 has been described. However, a plurality of spring portions may be provided at multiple locations of the receptacle shell 110. In this case, as the number of grounding points between the receptacle shell 110 and the terminal board GND 120 increases, the grounding area increases, the overall impedance decreases, and the shield strength increases.

  According to the above configuration, the short-circuit and non-short-circuit between the receptacle shell 110 and the terminal board GND 120 are switched depending on whether or not the plug 200 is inserted into the receptacle shell 110. When the receptacle shell 110 and the terminal board GND 120 are short-circuited, the shielding effect is enhanced, and the influence of noise on the wired communication quality during wired communication can be reduced. This is because the conductive receptacle shell 110 short-circuited to the ground electrode serves as a shield against noise emitted from the plug 200 and external noise. As described above, according to the above configuration, noise radiated from the plug and noise from the outside can be reduced.

[Modification]
Next, a modified example of the connector unit 100 according to the first embodiment will be described with reference to FIGS. As shown in these drawings, in the connector portion 100 of this modification, a third opening 110C is formed on the side surface of the receptacle shell 110, and a spring portion (switching portion) 111 extends from one end of the third opening 110C. It differs from the connector part 100 of Embodiment 1 mentioned above in the existing point. As described above, the spring portion 111 is not limited to the bottom surface of the receptacle shell 110, but can be provided on the side surface of the receptacle shell 110.

[Embodiment 2]
Next, based on FIG. 3, the operation | movement and the change of a structure of the connector part 100 which concern on Embodiment 2 of this invention are demonstrated. FIG. 3A is a flowchart illustrating the operation of the connector unit 100 according to the second embodiment. 3B and 3C are diagrams showing changes in the structure of the connector unit 100 according to the second embodiment.

  The configuration of the plug 200 is as described above. As for the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom side of the receptacle shell 110. The element switching circuit 130 includes a short-circuit lead (conductor) 131 and an SPST (Single Pole Single Throw) 132s. The receptacle shell 110, the short-circuit lead 131, the SPST 132s, and the terminal board GND 120 are connected in series in this order.

  At the start of the operation in the flowchart shown in FIG. 3A, the SPST 132s is in a normally open state, and the relationship between the connector unit 100 and the plug 200 is in the state shown in FIG. In this state, the receptacle shell 110 and the terminal board GND 120 are not short-circuited. As in the first embodiment, a current opposite in phase to the antenna does not flow to the ground, and the antenna gain can be improved. The quality can be improved.

  In S300, if the plug 200 is inserted into the receptacle shell 110, the determination becomes YES, and the process proceeds to S310. On the other hand, if the plug 200 is not inserted in the receptacle shell 110, the determination is NO and the process proceeds to S301. Whether or not the plug 200 is inserted is determined by using the fact that the pull-down resistance value mounted on the data line (D + / D−) changes when the plug is inserted, for example, in USB specifications. Judgment is made. As described above, in this embodiment, a method for determining whether or not a plug is inserted in the wired communication specification is used.

  In S310, the SPST 132s is turned on to electrically connect (short-circuit) the receptacle shell 110 and the terminal board GND 120, and the relationship between the connector unit 100 and the plug 200 is as shown in FIG. . As a result, the GND strength of the shield can be increased in the same manner as when the plug 200 is inserted in the first embodiment, and the quality during wired communication can be improved. In S301, the state shown in FIG. 3B is maintained by turning off SPST132s.

  According to the connector unit 100 of the second embodiment, the same effect as that of the first embodiment can be obtained. In addition, since it is not necessary to form the spring portion 111 by partially processing the bottom surface of the receptacle shell 110, it is possible to save the processing effort, and thus the same effect can be obtained more simply than in the first embodiment.

  According to the above configuration, the short-circuit and non-short-circuit between the receptacle shell 110 and the terminal board GND 120 are switched depending on whether or not the plug 200 is inserted into the receptacle shell 110. When the receptacle shell 110 and the terminal board GND 120 are short-circuited, the shielding effect is enhanced, and the influence of noise on the wired communication quality during wired communication can be reduced. This is because the conductive receptacle shell 110 short-circuited to the ground electrode serves as a shield against noise emitted from the plug 200 and external noise. As described above, according to the above configuration, noise radiated from the plug and noise from the outside can be reduced.

[Modification]
Next, a modification of the connector unit 100 according to the second embodiment will be described with reference to FIG. For the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom surface side of the receptacle shell 110. An SPDT (Single Pole Double Throw) 132 is provided in the element switching circuit 130 so that one of two paths of a short-circuit lead 131 and a path including the high-frequency cutoff element 134 can be selected. .

  Here, the high-frequency cutoff element 134 is described as a choke coil. However, the high-frequency cutoff element 134 is not limited to a choke coil, but includes an inductor (including a coil or a bead), a capacitor, a series circuit of an inductor and a capacitor, It may be a notch filter (a parallel circuit of an inductor and a capacitor) and a notch filter (a parallel circuit of an inductor and a capacitor and a series circuit of an inductor) as long as it is an element that can cut off a desired high frequency. May be used.

  Next, (a) of FIG. 4 is a flowchart which shows operation | movement of the modification of the connector part 100 which concerns on Embodiment 2. FIG. 4B and 4C are diagrams showing changes in the structure of a modified example of the connector unit 100 according to the second embodiment.

  At the start of the flowchart shown in FIG. 4A, the relationship between the connector unit 100 and the plug 200 is in the state shown in FIG. 4B, and the SPDT 132 is provided with a high-frequency cutoff element 134 (choke coil). A route is selected. Even if a radio signal having a high frequency, which is a noise component, flows to the receptacle shell 110, the high-frequency cutoff element 134 is likely to attenuate the current of the signal having a high frequency. Inflow can be prevented.

  In S400, if the plug 200 is inserted into the receptacle shell 110, the determination becomes YES, and the process proceeds to S410. On the other hand, if the plug 200 is not inserted into the receptacle shell 110, the determination is NO and the process proceeds to S401.

  In S410, the SPDT 132 selects the path of the short-circuit lead 131 to electrically connect (short-circuit) the receptacle shell 110 and the terminal board GND 120, and the relationship between the connector unit 100 and the plug 200 is shown in FIG. The state shown in c) is obtained. As a result, the GND strength of the shield can be increased, and the quality during wired communication can be improved. Here, “0Ω conduction path selection” is to select the path of the short-circuiting lead 131 as described above. In S401, the state shown in FIG. 4B is maintained by selecting a path including the high-frequency cutoff element 134 in SPDT132.

[Embodiment 3]
Next, based on FIG. 5, operation | movement of the connector part 100 which concerns on Embodiment 3 of this invention is demonstrated. FIG. 5A is a flowchart illustrating the operation of the connector unit 100 according to the third embodiment. FIG. 5B is a diagram illustrating the structure of the connector unit 100 according to the third embodiment.

  As for the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom surface side of the receptacle shell 110. An SPnT (Single Pole Throw) 133 is provided in the element switching circuit 130 and selects either the path of the short-circuit lead 131 or the path provided with the high-frequency cutoff elements 134, 135, and 136, respectively. It can be done.

  In the present embodiment, three high-frequency cutoff elements 134, 135, and 136 are arranged in parallel, but the number of high-frequency cutoff elements is not limited to three and may be two or more. It suffices to arrange a plurality of elements corresponding to the type of signal frequency to be cut off.

  At the start of the flowchart shown in FIG. 5A, the plug 200 is not inserted into the receptacle shell 110. At this time, when the electronic device 1000 is in a state of performing wireless communication, in S500, the wireless communication unit confirms the wireless communication frequency band, and proceeds to S501. If the communication is performed in the wireless communication frequency band (hereinafter, “wireless communication frequency band” is omitted) Band A in S501, the determination is YES, and the process proceeds to S502. If communication is not performed using Band A, the determination is NO and the process proceeds to S511.

  In S502, in order to reduce a signal related to BandA from the receptacle shell 110 to the terminal board GND 120, a route through an element that cuts off the BandA frequency band or an optimum element that does not degrade wireless communication in BandA (1) And proceed to S503.

  If it is determined in S511 that communication is performed using BandB, the determination is YES, and the process proceeds to S512. If communication is not performed using BandB, the determination is NO and the process proceeds to S521.

  In S512, in order to reduce the signal related to BandB from the receptacle shell 110 to the terminal board GND 120, the path through the element that cuts off the BandB frequency band or the optimum element that does not deteriorate the wireless communication in BandB (2) And proceed to S503.

  In S521, if communication is performed using Band N, the process proceeds to S522. In S522, in order to reduce a signal related to BandN from the receptacle shell 110 to the terminal board GND 120, a route (N) through an element that cuts off the BandN frequency band or an optimum element that does not deteriorate the wireless communication in BandB. And proceed to S503.

  Next, when the plug 200 is inserted into the receptacle shell 110 in S503, the determination becomes YES, and the process proceeds to S504. On the other hand, when the plug 200 is not inserted into the receptacle shell 110, the process returns to S500.

  Next, in S504, the wireless communication unit confirms the wireless communication frequency band, and proceeds to S505. In S505, if communication is performed using Band A, the determination is YES, and the process proceeds to S506. If communication is not performed using Band A, the determination is NO and the process proceeds to S515.

  In S506, in order to reduce the signal related to BandA from the receptacle shell 110 to the terminal board GND 120, the route through the element that cuts off the BandA frequency band or the optimum element that does not deteriorate the wireless communication in BandA (1) Select. However, the route to be selected is not necessarily the same when the plug 200 is not inserted and when the plug 200 is inserted. For example, considering the influence of noise caused by wired communication, when the band A frequency band is cut off and the shielding effect is greatly impaired, it is preferable to select a route that can keep the quality of both wireless communication and wired communication to a minimum. . The operations of S515, S516, S525, and S526 are substantially the same as the operations of S511, S512, S521, and S522 described above, but the route to be selected is the same when the plug 200 is not inserted and when it is inserted. The points that are not limited are the same as those described in S506.

  Next, (c) of FIG. 5 shows an example of paths to be selected when the plugs 200 are not inserted and when the plugs 200 are not inserted. In the figure, the route to be selected is not the same during BandC communication, when the plug 200 is not inserted, and when it is inserted. When the plug 200 is not inserted, the route (3) is selected considering only the wireless communication quality. However, when the plug 200 is inserted, the route (3) has a small shielding effect, and the wired communication quality is low. This is because the route (4) that can keep the quality of both wired and wireless communication at the minimum is selected. On the other hand, if wireless communication quality can be maintained without using a high-frequency cutoff element, selection of a short-circuit path that is more advantageous for wired communication quality is included as an option.

[Embodiment 4]
Next, based on FIG. 6, operation | movement of the connector part 100 which concerns on Embodiment 4 of this invention is demonstrated. FIG. 6A is a flowchart illustrating the operation of the connector unit 100 according to the fourth embodiment. 6B to 6D are diagrams showing changes in the structure of the connector unit 100 according to the fourth embodiment.

  For the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom surface side of the receptacle shell 110. In the element switching circuit 130, an SPDT (Single Pole n Throw) 132 a, an ammeter (measurement unit) 137, an SPDT 132 b, a high-frequency cutoff element 134, a short-circuit lead 131, and a DC cut element (DC component cut element) 138 are provided. ing.

  The SPDT 132a can select either a path including the high frequency cutoff element 134 or a path including the ammeter 137. The SPDT 132 b can select either the short-circuit lead 131 or a path including the DC cut element 138 via the ammeter 137. In the present embodiment, it is assumed that a capacitor is used as the DC cut element 138. However, the DC cut element 138 is not limited to this, and a varistor (nonlinear resistance element) or the like may be used.

  In the flowchart shown in FIG. 6A, at the start, the plug 200 is not inserted into the receptacle shell 110 [FIG. 6B]. In this state, wireless communication is in progress, and in this case, a path including the high-frequency blocking element 134 is selected in the SPDT 132a in order to block a specific high-frequency radio wave that becomes noise in wireless communication.

  If the plug 200 is inserted into the receptacle shell 110 in S600, the determination is YES, and the process proceeds to S610. On the other hand, if the plug 200 is not inserted into the receptacle shell 110, the determination is NO and the process proceeds to S601.

  In S610, the SPDT 132a selects a path including the ammeter 137 and measures the current with the ammeter 137. At this time, if the current value measured by the ammeter 137 is a normal value less than the predetermined threshold value, the process proceeds to S611. On the other hand, when the current value measured by the ammeter 137 is equal to or greater than a predetermined threshold value, that is, when an overcurrent is detected, an abnormality is detected, and the process proceeds to S620.

  In S611, the SPDT 132b selects the path of the short-circuiting lead 131 to short-circuit between the receptacle shell 110 and the terminal board GND 120 [(c) of FIG. 6]. Thereby, the ground strength of the shield is improved, and the quality during wired communication is guaranteed.

  On the other hand, in S620, the path including the DC cut element 138 is selected in SPDT 132b [(d) in FIG. 6]. Thereby, the overcurrent that has entered through the plug 200 can be cut by the DC cut element 138.

[Modification]
Next, a modified example of the connector unit 100 according to the fourth embodiment will be described with reference to FIG. In the above-described form, the form using two SPDTs SPDT 132a and 132b has been described. However, as described below, a form using a single SPnT 133 can also be adopted.

  In the element switching circuit (switching unit) 130 shown in the figure, an ammeter 137 and SPnT 133 are connected in series, and the SPnT 133 includes a path for the short-circuiting lead 131, a path including the high-frequency cutoff element 134, and a DC cut element 138. One of the routes can be selected.

[Embodiment 5]
Next, based on FIG. 7, operation | movement of the connector part 100 which concerns on Embodiment 5 of this invention is demonstrated. FIG. 7A is a flowchart illustrating the operation of the connector unit 100 according to the fifth embodiment. 7B to 7D are diagrams illustrating changes in the structure of the connector unit 100 according to the fifth embodiment.

  Unlike the plugs 201 and 202 described in the first to fourth embodiments, the plug 201 is a USB 3.1 specification plug, and the plug 202 is a USB 2.0 specification plug.

  As for the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom surface side of the receptacle shell 110. The element switching circuit 130 includes a cable insertion detection mechanism (detection unit) 139 and is connected to detection electrodes 110D and SPnT 133 provided on the bottom surface of the receptacle shell 110. Further, the SPnT 133 can select any one of a path of the short-circuit lead 131, a path including the high-frequency cutoff element 134, and a path including the high-frequency cutoff element 135. The cable insertion detection mechanism 139 has a function of detecting whether or not a plug is inserted and whether the plug specification is different (for example, whether it is USB 2.0 or USB 3.1).

  In the flowchart shown in (a) of FIG. 7, at the start, the state is as shown in (b) of FIG. 7, and the plug 200 is not inserted. Is detected, and the high frequency cutoff element 134 (high frequency cutoff element 1) is selected in accordance with the frequency characteristics to be cut off.

  If the plug 200 is inserted into the receptacle shell 110 in S700, the determination is YES, and the process proceeds to S710. On the other hand, if the plug 200 is not inserted into the receptacle shell 110, the determination is NO and the process proceeds to S701.

  In S710, when the cable insertion detection mechanism 139 detects that the plug 201, which is a USB 3.1 specification plug, has been inserted into the receptacle shell 110, the process proceeds to S711. On the other hand, if the cable insertion detection mechanism 139 detects that the plug 202, which is a USB 2.0 specification plug, is inserted into the receptacle shell 110, the process proceeds to S720.

  In S711, the short-circuit conducting wire 131 is selected by SPnT 133, and the receptacle shell 110 and the terminal board GND 120 are short-circuited ((c) in FIG. 7). Here, in the communication with the plug 201, since a strong noise is expected, the conductor 131 for short-circuiting is selected by giving priority to the shield strength.

  In S720, a path including the high-frequency cutoff element 135 (high-frequency cutoff element 2) is selected in SPnT 133 [(d) in FIG. 7]. Since the plug 202 is less susceptible to noise during communication than the plug 201, the high-frequency cutoff element 135 is selected even during wired communication to improve the antenna gain. Note that the path of the high frequency cutoff element 135 is selected instead of the path via the high frequency cutoff element 134 at the time of wireless communication. This is because the path that can maintain the minimum quality of both wired and wireless communication is selected. Because it is.

[Modification]
Next, a modification of the connector unit 100 according to the fifth embodiment will be described with reference to FIG. FIG. 8A is a flowchart illustrating the operation of a modification of the connector unit 100 according to the fifth embodiment. 8B to 8D are diagrams showing changes in the structure of a modified example of the connector unit 100 according to the fifth embodiment. As described above, the plug 201 is a USB 3.1 specification plug, and the plug 202 is a USB 2.0 specification plug.

  As for the connector unit 100, an element switching circuit (switching unit) 130 is formed on the bottom surface side of the receptacle shell 110. The element switching circuit 130 includes a cable insertion detection mechanism 139 and is connected to the detection electrode 110 </ b> D and the SPDT 132 provided on the bottom surface of the receptacle shell 110. Further, the SPDT 132 can select either the path of the short-circuiting lead 131 or the path including the high-frequency cutoff element 135. The function of the cable insertion detection mechanism 139 is as described above.

  In the flowchart shown in FIG. 8A, the state at the start is as shown in FIG. 8B, and the plug 200 is not inserted, so the cable insertion detection mechanism 139 does not detect it. Is detected, and the high frequency cutoff element 135 is selected in accordance with the frequency characteristics to be cut off.

  If the plug 200 is inserted into the receptacle shell 110 in S800, the determination becomes YES and the process proceeds to S810. On the other hand, if the plug 200 is not inserted into the receptacle shell 110, the determination is NO and the process proceeds to S801.

  In S810, if the cable insertion detection mechanism 139 detects that the plug 201, which is a USB 3.1 specification plug, has been inserted into the receptacle shell 110, the process proceeds to S811. On the other hand, if the cable insertion detection mechanism 139 detects that the plug 202, which is a USB 2.0 specification plug, is inserted into the receptacle shell 110, the process proceeds to S801.

  In S811, the short-circuit lead 131 is selected in the SPDT 132, and the receptacle shell 110 and the terminal board GND 120 are short-circuited ((d) in FIG. 8). Here, in the communication with the plug 201, since a strong noise is expected, the conductor 131 for short-circuiting is selected by giving priority to the shield strength.

  In S801, the SPDT 132 selects a path including the high-frequency cutoff element 135 [(c) in FIG. 8]. If there is no problem with the antenna gain even if the same high-frequency cutoff element is used, a path including the same high-frequency cutoff element 135 is selected both in the uninserted state and in the inserted state as in this modification. May be.

[Summary]
The connector structure according to the first aspect of the present invention is a connector structure including a conductive receiving portion into which a plug is inserted, and the receiving portion and the terminal board when the plug is inserted into the receiving portion. The ground electrode is short-circuited, or the receiving portion and the ground electrode are connected by a DC component cut element, or the receiving portion and the ground electrode are connected by a high-frequency cutoff element. When the path is selected and the plug is not inserted into the receiving part, the receiving part and the ground electrode are not short-circuited, or the receiving part and the ground electrode are not short-circuited. It is the structure provided with the switch part which selects the path | route connected by the same or another high frequency cutoff element as a high frequency cutoff element.

  According to the above configuration, when the plug is inserted in the receiving portion, when the receiving portion and the ground electrode of the terminal board are short-circuited, the shielding effect is enhanced, and the influence of noise on the wired communication quality during wired communication Can be reduced. Thereby, wired communication quality can be improved. In addition, according to the above configuration, when no plug is inserted in the receiving portion, the receiving portion and the ground electrode are not short-circuited, or the receiving portion and the ground electrode are separated from each other with a specific high frequency. The antenna gain can be improved by selecting a path connected by the element. Therefore, it is possible to improve wired communication quality and antenna gain.

  The connector structure according to aspect 2 of the present invention is the connector structure according to aspect 1, further comprising a measuring unit that measures a current flowing between the receiving unit and the ground electrode, and the switching unit includes the plug inserted into the receiving unit. If the current measured by the measuring unit is equal to or greater than a predetermined threshold, a path connecting the receiving unit and the ground electrode with a DC component cut element may be selected. . According to the above configuration, it is possible to prevent an overcurrent from flowing to the substrate side by cutting the DC component with the DC component cut element.

  A connector structure according to aspect 3 of the present invention includes a detection unit that detects the type of the plug inserted into the receiving part in the aspect 1 or 2, and the switching unit includes the plug inserted into the receiving part. A path for short-circuiting between the receiving portion and the ground electrode of the terminal board, and between the receiving portion and the ground electrode, depending on the type of the plug detected by the detecting portion. Any of the paths connected by the high-frequency cutoff element may be selected. According to the above configuration, it is possible to improve wired communication quality and antenna gain according to the type of plug.

  The electronic device according to aspect 4 of the present invention preferably includes the connector structure according to any one of aspects 1 to 3. According to the above configuration, it is possible to realize an electronic device capable of improving wired communication quality and antenna gain.

[Additional Notes]
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

134, 135 High-frequency cutoff element 100 Connector part (connector structure)
110 Receptacle shell (receiving part)
111 Spring part (switching part)
130 Element switching circuit (switching unit)
131 Short-circuit lead 137 Ammeter (Measurement unit)
138 DC cut element (DC component cut element)
139 Cable insertion detection mechanism (detection unit)
200, 201, 202 Plug 120 Terminal board GND (Ground electrode)
1000 electronic equipment

Claims (4)

A connector structure having a conductive receiving part into which a plug is inserted,
When the plug is inserted into the receiving part,
Short-circuit between the receiving part and the ground electrode of the terminal board, or a path connecting the receiving part and the ground electrode with a DC component cut element, or between the receiving part and the ground electrode Select the path that connects the
When the plug is not inserted into the receiving part,
Switching between the receiving part and the ground electrode that is not short-circuited or a path that connects the receiving part and the ground electrode with the same or different high-frequency cutoff element as the high-frequency cutoff element A connector structure comprising a portion. A measuring unit for measuring a current flowing between the receiving unit and the ground electrode;
The switching unit is
When the plug is inserted into the receiving portion and the current measured by the measuring portion is equal to or greater than a predetermined threshold, a DC component cut element is used between the receiving portion and the ground electrode. The connector structure according to claim 1, wherein a connection path is selected. A detection unit for detecting the type of the plug inserted into the receiving unit;
The switching unit is
When the plug is inserted into the receiving portion, a path for short-circuiting between the receiving portion and the ground electrode of the terminal board according to the type of the plug detected by the detecting portion, and the receiving portion 2. The connector structure according to claim 1, wherein either one of a path connecting the antenna and the ground electrode with a high-frequency cutoff element is selected.   An electronic apparatus comprising the connector structure according to any one of claims 1 to 3.

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