Connector and electronic device

Abstract

The present invention provides a connector capable of preventing disconnection of a connection between a circuit board provided in another housing and a fine wire coaxial cable, and an electronic device including the same. The connector (1) includes a connector housing (11), a fine wire coaxial cable (17) for providing a coaxial connection between an external coaxial cable (2) and a circuit board provided in another housing, and a shielding member (12) provided in an inner space of the connector housing (11) and electrically connected to a sheath (173) of the fine wire coaxial cable (17). The shielding member (12) has a holding mechanism for holding the fine wire coaxial cable (17).

Description

TECHNICAL FIELD

[0001] The present application relates generally to a connector and an electronic device including the same, and more particularly, to a connector for providing a coaxial connection between a circuit board disposed in another housing and an object-side coaxial cable, and an electronic device including the same. BACKGROUND

[0002] Nowadays, in order to provide an electrical connection between a circuit board disposed in a housing and an external cable, a connector having a different connector housing from the housing in which the circuit board is housed is used. As a typical device using such a connector, a vehicle-mounted camera can be cited.

[0003] A vehicle-mounted camera generally includes a camera housing, a circuit board disposed in the camera housing, a shooting element such as a CCD, a CMOS sensor, and the like mounted on the circuit board, and a shooting optical system provided in front of the shooting element. An optical image is formed on a shooting surface of the shooting element by the shooting optical system, and a shooting operation of the vehicle-mounted camera is performed by shooting the optical image by the shooting element. Such a vehicle-mounted camera is installed at various parts of an automobile (for example, a front bumper, a rear bumper), is connected to an ECU (Electronic Control Unit) that controls the operation of the automobile, transmits an image shot to the ECU, and receives a power supply and a command from the ECU.

[0004] In order to connect the vehicle-mounted camera to the ECU, it is necessary to connect a connection cable extending from the ECU to a connection portion of the circuit board of the vehicle-mounted camera. At this time, in order to achieve an improvement in noise resistance of an EMI shield, an improvement in reliability of connection, waterproofing and dustproofing of connection, an improvement in impact resistance, and other environmental resistance required for the vehicle-mounted camera, a connector that relays connection of the connection cable of the ECU to the connection portion of the circuit board of the vehicle-mounted camera is often used.

[0005] Also, along with high pixelization of vehicle-mounted cameras in recent years, the amount of data transmitted from the vehicle-mounted camera to the ECU has increased. In order to transmit large-capacity data in a short time, high-frequency signals need to be exchanged between the vehicle-mounted camera and the ECU, and thus there is a demand to improve the electrical characteristics of the connection between the vehicle-mounted camera and the ECU, and in particular, the transmission characteristics in a high-frequency band. In response to such a demand, Patent Literature 1 discloses a connector that uses a coaxial cable as a connection cable of a vehicle-mounted camera and is used to connect the vehicle-mounted camera and the ECU by a coaxial connection. As is well known, a coaxial connection using a coaxial cable has higher transmission characteristics in a high-frequency band than a connection using a plurality of terminals. By connecting the vehicle-mounted camera and the ECU by such a coaxial connection using a coaxial cable, it is possible to improve the transmission characteristics of the connection between the vehicle-mounted camera and the ECU in a high-frequency band.

[0006] In a connector between a connection portion of a circuit board of a vehicle-mounted camera and a connection cable of an ECU, a fine cable is often used for connecting the circuit board of the vehicle-mounted camera and the connector. For example, in Patent Literature 2, a connector 700 shown in FIG. 1 is disclosed. The connector 700 is used to provide a connection between an external cable 800 extending from an ECU of an automobile and a circuit board 920 provided in a camera housing 910 of a vehicle-mounted camera 900. The connector 700 includes a box-shaped connector housing 710 which opens toward a front side (a vehicle-mounted camera 900 side), a wiring board 720 provided in the connector housing 710, a terminal 730 for providing a connection between the wiring board 720 and the external cable 800, and a fine cable 740 for providing a connection between the wiring board 720 and the circuit board 920 of the vehicle-mounted camera 900. A fitting portion 750 is formed on a rear side of the connector housing 710, and the external cable 800 is fitted in the fitting portion 750 of the connector housing 710. Also, by mounting the front side (the vehicle-mounted camera 900 side) of the connector housing 710 to the rear side of the camera housing 910, the components of the circuit board 920 of the vehicle-mounted camera 900 and the connector 700 are housed in a space defined by the front side of the connector housing 710 and the rear side of the camera housing 910. Figure 1

[0007] If the external cable 800 is fitted in the fitting portion 750 of the connector housing 710, the terminal 730 of the connector 700 is electrically connected to the external cable 800, and the wiring board 720 of the connector 700 is electrically connected to the external cable 800. On the other hand, the wiring board 720 of the connector 700 is connected to the circuit board 920 of the vehicle-mounted camera 900 through the fine cable 740. With this structure, the connector 700 can provide a connection between the external cable 800 and the circuit board 920 of the vehicle-mounted camera 900 housed in another camera housing 910 different from the connector housing 710 of the connector 700.

[0008] The connection between the wiring board 720 of the connector 700 and the circuit board 920 of the vehicle-mounted camera 900 using the fine cable 740 is widely used because the connection is simple in structure and can be performed manually and easily. However, in the connection using the fine cable 740, after the fine cable 740 is violently swung by vibration or impact applied to the connector 700 when the automobile is running, the fine cable 740 is detached from the wiring board 720 of the connector 700 and / or the circuit board 920 of the vehicle-mounted camera 900, and there is a problem in that the connection between the wiring board 720 of the connector 700 and the circuit board 920 of the vehicle-mounted camera 900 is unexpectedly detached.

[0009] ​Prior Art Documents

[0010] Patent Documents

[0011] Patent Document 1: Japanese Patent Application Publication No. 2016-162556

[0012] Patent Document 2: Japanese Patent Application Publication No. 2007-22364 SUMMARY

[0013] Problems to be Solved by the Invention

[0014] The present invention has been achieved in view of the above-described problems of the related art, and has an object to provide a connector capable of preventing unexpected detachment of connection between a circuit board provided in another housing and a fine wire coaxial cable, and an electronic device including the connector.

[0015] Means for Solving the Problems

[0016] Such an object is achieved by the present invention described in (1) to (8) below.

[0017] (1) A connector for providing a coaxial connection between a circuit board provided in another housing and an external coaxial cable, the connector characterized by comprising: a box-shaped connector housing having a rear plate, a wall portion extending from an outer edge of the rear plate to a front side, and a fitting portion formed on a rear side of the rear plate and fitted to the external coaxial cable, and installed in the other housing on the front side; a fine wire coaxial cable having a core wire and a metal outer shell concentric with the core wire, for providing the coaxial connection between the external coaxial cable fitted to the fitting portion of the connector housing and the circuit board provided in the other housing; and a shield member provided in an internal space of the connector housing defined by the rear plate and the wall portion of the connector housing, and electrically connected to the outer shell of the fine wire coaxial cable, the shield member having a holding mechanism for holding the fine wire coaxial cable.

[0018] (2) The connector according to the above (1), the fine wire coaxial cable having a mounting portion electrically connected to the outer shell, the shield member being electrically connected to the outer shell of the fine wire coaxial cable when the mounting portion of the fine wire coaxial cable is held by the holding mechanism of the shield member.

[0019] (3) The connector according to the above (1) or (2), the shield member having a flat plate-shaped main body portion on the rear plate in the internal space of the connector housing, and the holding mechanism formed integrally with the main body portion.

[0020] (4) The connector according to the above (3), wherein the holding mechanism includes a pair of extension portions formed by bending a portion of the main body portion toward the front side, and holds the thin coaxial cable by clamping the mounting portion of the thin coaxial cable with the pair of extension portions.

[0021] (5) The connector according to any one of the above (1) to (4), further comprising a contact pin connecting the external coaxial cable and the core wire of the thin coaxial cable, the core wire of the thin coaxial cable being soldered to the contact pin.

[0022] (6) The connector according to the above (5), wherein the contact pin is inserted through the rear plate of the connector housing, one end portion is located on the front side of the rear plate, and the other end portion is located on the rear side of the rear plate, the one end portion of the contact pin is soldered to the core wire of the thin coaxial cable, and the other end portion of the contact pin is connected to the external coaxial cable.

[0023] (7) The connector according to the above (6), wherein a connection portion between the one end portion of the contact pin and the core wire of the thin coaxial cable is covered by an insulating protective member.

[0024] (8) An electronic device, characterized by comprising: the connector according to any one of the above (1) to (7); and a circuit board provided in a housing different from the connector housing of the connector and connected to the connector.

[0025] Effects of the Invention

[0026] According to the present application, since the thin coaxial cable is held by the holding mechanism of the shielding member, swinging of the thin coaxial cable caused by vibration, impact, or the like during driving of the automobile is prevented. Therefore, unexpected disconnection of the connection between the thin coaxial cable and the circuit board provided in the other housing due to the swinging of the thin coaxial cable can be prevented, and thus the reliability of the connection between the thin coaxial cable and the circuit board provided in the other housing can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a sectional view for explaining a conventional connector.

[0028] Figure 2 is a perspective view showing a connector and an external coaxial cable according to the present application.

[0029] Figure 3 is a perspective view showing the connector and the external coaxial cable shown in Figure 2 from another angle.

[0030] Figure 4 is Figure 2 exploded perspective view of the connector shown in FIG. 1.

[0031] Figure 5 is a plan view of the connector housing shown in FIG. 1, viewed from the front side. Figure 4

[0032] Figure 6 is a plan view of the shielding member shown in FIG. 1, viewed from the front side. Figure 4

[0033] Figure 7 is a perspective view of a peripheral area of the retaining mechanism of the shielding member shown in FIG. 1, shown on an enlarged scale. Figure 6

[0034] Figure 8 is a perspective view of the fine wire coaxial cable shown in FIG. 1. Figure 4

[0035] Figure 9 is a plan view of the connector shown in FIG. 1, viewed from the rear side. Figure 2

[0036] Figure 10 is a plan view of the connector shown in FIG. 1, viewed from the front side. Figure 2

[0037] Figure 11 is a sectional view taken on the YZ plane for explaining the connection of the connector shown in FIG. 1 with an external coaxial cable. Figure 2

[0038] in the drawings:

[0039] ​​​​​​​1 - connector, 11 - connector housing, 111 - rear plate, 112 - wall portion, 113 - fitting portion, 1131 - opening, 1132 - fitting protrusion, 114 - through-hole, 115 - boss, 116 - press-in groove, 117 - engagement portion, 12 - shield member, 121 - flat plate portion, 122 - wall portion, 123 - through-hole, 124 - extension portion, 125 - boss insertion hole, 126 - slit, 127 - holding mechanism, 1271 - clamping portion, 1272 - base end portion, 1273 - extension portion, 1274 - reduced diameter portion, 1275 - guide portion, 13 - housing, 131 - main body portion, 132 - flange portion, 133 - protruding portion, 14 - housing, 141 - main body portion, 142 - through-hole, 143 - protrusion, 15 - contact pin, 151 - front end portion, 152 - base end portion, 16 - seal member, 161 - through-hole, 162 - circular slit, 17 - thin coaxial cable, 171 - core wire, 172 - inner insulating layer, 173 - outer shell, 174 - outer insulating layer, 175 - mounting portion, 176 - connector, 177 - soldering portion, 18 - protection member, 2 - external coaxial cable, 21 - connector portion, 211 - fitting recess, 22 - terminal portion, 23 - core wire, 24 - inner insulating layer, 25 - outer shell, 26 - outer insulating layer, 700 - connector, 710 - connector housing, 720 - wiring board, 730 - terminal, 740 - thin cable, 750 - fitting portion, 800 - external cable, 900 - in-vehicle camera, 910 - camera housing, 920 - circuit board. DETAILED DESCRIPTION

[0040] Hereinafter, the connector and the electronic device according to the present application will be described based on preferred embodiments shown in the drawings. Furthermore, each drawing referred to below is a schematic view prepared for the purpose of explaining the present application. The dimensions (length, width, thickness, etc.) of each constituent element shown in the drawings do not necessarily reflect actual dimensions. Also, the same symbol is attached to the same or corresponding elements in each drawing. In the following description, the positive direction of the Z axis of each drawing is sometimes referred to as the "front side", the negative direction of the Z axis is sometimes referred to as the "rear side", the positive direction of the Y axis is sometimes referred to as the "upper side", the negative direction of the Y axis is sometimes referred to as the "lower side", the positive direction of the X axis is sometimes referred to as the "front side", and the negative direction of the X axis is sometimes referred to as the "rear side".

[0041] First, the connector according to the embodiment of the present application will be described in detail with reference to Figures 2-11 Figure 2 is a perspective view showing the connector and the external coaxial cable according to the present application. Figure 3 is a perspective view showing the connector and the external coaxial cable according to the present application from another angle. Figure 2 is a perspective view showing the connector and the external coaxial cable according to the present application from another angle. Figure 4 is an exploded perspective view of the connector shown in Figure 2 Figure 5 ​​This is observed from the front side. Figure 4 The top view of the connector housing shown. Figure 6 This is observed from the front side. Figure 4 The top view of the shielding component shown. Figure 7 It is shown in magnification Figure 6 A perspective view of the surrounding area of ​​the retaining mechanism of the shielding component shown. Figure 8 It is shown Figure 4 A three-dimensional view of a thin coaxial cable is shown. Figure 9 It was observed from the rear side. Figure 2 The top view of the connector shown. Figure 10 This is observed from the front side. Figure 2 The top view of the connector shown. Figure 11 It is used for explanation Figure 2 The diagram shows a cross-sectional view of the connector's connection to an external coaxial cable along the YZ plane.

[0042] Figure 2 and Figure 3 The diagram illustrates a connector 1 and an external coaxial cable 2 connected to the connector 1, according to an embodiment of the present invention. The connector 1 provides a coaxial connection between the circuit board of an external device housed in another housing (not shown) and the external coaxial cable 2.

[0043] Typically, an external device (not shown) coaxially connected to an external coaxial cable 2 via connector 1 is an in-vehicle camera. The in-vehicle camera is installed in various parts of the vehicle (e.g., the front bumper, rear bumper), captures images of the vehicle's exterior, and sends the captured images to the vehicle's control equipment, such as the ECU (Electronic Control Unit). The external coaxial cable 2 extends from the vehicle's control equipment, such as the ECU, and is coaxially connected to the circuit board of the external device via connector 1.

[0044] like Figure 4As shown, the connector 1 includes: a box-shaped connector housing 11 that is open at the front side (+Z direction side); a shield member 12 that is provided inside the connector housing 11; a metal cylindrical outer shell 13 that penetrates the connector housing 11 and the shield member 12 from the front side (+Z direction side) to the rear side (-Z direction side); a cylindrical insulating housing 14 that is provided inside the outer shell 13; a contact pin 15 that is held to the housing 14 in a manner such that a front end portion 151 is exposed at the rear side (-Z direction side) of the connector housing 11 and a base end portion 152 is exposed at the front side (+Z direction side) of the connector housing 11; a seal member 16 for sealing the connector housing 11 in a liquid-tight manner; a thin-wire coaxial cable 17 for providing a coaxial connection via the contact pin 15 between the external coaxial cable 2 and a circuit board of an external device provided inside another housing; and a protection member 18 for protecting the connection of the contact pin 15 and the thin-wire coaxial cable 17.

[0045] The connector housing 11 is integrally formed of an insulating material and has a function of housing components of the connector 1 inside thereof. As shown in Figure 4 and Figure 5 As shown, the connector housing 11 has: a rear plate 111 that opposes the external coaxial cable 2; a wall portion 112 that extends from an outer edge of the rear plate 111 to the front side (+Z direction side); a fitting portion 113 that is formed on a surface of the rear plate 111 at the rear side (-Z direction side); a through hole 114 that is formed in the rear plate 111; four bosses 115 that are formed on a surface of the rear plate 111 at the front side (+Z direction side); and an insertion groove 116 that is formed on a surface of the rear plate 111 at the front side (+Z direction side) across the through hole 114.

[0046] The rear plate 111 is a flat plate member that functions as a base of the connector 1 and has a substantially square shape in plan view. The external coaxial cable 2 opposes the rear plate 111 when the external coaxial cable 2 is connected to the connector 1. The wall portion 112 extends from the outer edge of the rear plate 111 to the front side (+Z direction side), the inner space of the connector housing 11 is defined by the surface of the rear plate 111 at the front side (+Z direction side) and the wall portion 112, and the components of the connector 1 are housed inside the inner space. Further, a fitting portion 117 in which the outer diameter is reduced is formed at the front side (+Z direction side) portion of the wall portion 112. By fitting the fitting portion 117 of the wall portion 112 to a corresponding opening of a housing of an external device located at the front side (+Z direction side), the connector 1 can be mounted to the external device.

[0047] The fitting portion 113 is a portion that protrudes from the surface of the rear plate 111 at the rear side (-Z direction side) to the rear side and that mounts the connector portion 21 (see FIG. 2) of the external coaxial cable 2. Figure 3). The fitting portion 113 has a diameter larger than that of the through-hole 114 formed in the rear plate 111, and has an opening 1131 concentric with the through-hole 114 and a fitting protrusion 1132 formed at an upper end portion of the opening 1131. As shown in Figure 3 , the external coaxial cable 2 is brought into contact with the fitting portion 113 in such a manner that the front side (+Z direction side) of the connector portion 21 of the external coaxial cable 2 faces the fitting portion 113, and the external coaxial cable 2 is fitted with the fitting portion 113 by inserting the fitting protrusion 1132 of the fitting portion 113 of the connector 1 into the fitting recess 211 formed in the connector portion 21 of the external coaxial cable 2. When the external coaxial cable 2 is fitted with the fitting portion 113, the terminal portion 22 of the external coaxial cable 2 comes into contact with the housing 13 and the contact pin 15 of the connector 1, and the connector 1 is coaxially connected with the external coaxial cable 2.

[0048] Returning to Figure 5 , the through-hole 114 is formed in order to pass the housing 13, the shell 14, and the contact pin 15 from the front side (+Z direction side) of the rear plate 111 to the rear side (-Z direction side). Four bosses 115 are formed on the front side (+Z direction side) of the rear plate 111, and serve to hold the shield member 12 in the internal space of the connector housing 11 defined by the rear plate 111 and the wall portion 112. A pair of press-in grooves 116 are formed on the front side (+Z direction side) of the rear plate 111 across the through-hole 114. The pair of protruding portions 133 (see Figure 4 ) of the housing 13 are respectively pressed into the pair of press-in grooves 116, and the housing 13 is thereby fixed to the connector housing 11.

[0049] The shield member 12 is composed of a metal material, and is fixedly provided in the connector housing 11. The shield member 12 has the function of improving the noise resistance of the connection between the external coaxial cable 2 provided by the connector 1 and a circuit board of an external device provided in another housing, by means of an EMI shield. The shield member 12 can be formed by punching and bending a sheet metal plate. As shown in Figure 4 and Figure 6As shown, the shield member 12 has a flat plate portion 121 provided on the face of the front side (+Z direction side) of the rear plate 111, a wall portion 122 extending from the outer edge of the flat plate portion 121 toward the front side (+Z direction side), a through-hole 123 formed in the flat plate portion 121 in correspondence with the through-hole 114 of the connector housing 11, an extension portion 124 extending from the edge portion of the through-hole 123 toward the rear side (-Z direction side), a boss insertion hole 125 formed in the flat plate portion 121 in correspondence with the four bosses 115 of the connector housing 11, a pair of slits 126 formed in the flat plate portion 121 in correspondence with the pair of press-in grooves 116 of the connector housing 11, and a holding mechanism 127 for holding the thin coaxial cable 17.

[0050] The flat plate portion 121 is provided on the face of the front side (+Z direction side) of the rear plate 111. Figure 6 The right upper corner portion and the left lower corner portion of the flat plate portion 121 in the shield member 12 are cut away, and the flat plate portion 121 has a shape corresponding to the face of the front side (+Z direction side) of the rear plate 111. Therefore, the flat plate portion 121 cooperates with the face of the front side (+Z direction side) of the rear plate 111. The wall portion 122 extends from the outer edge of the flat plate portion 121 other than the cut-away portions toward the front side (+Z direction side). The outer side shape of the wall portion 122 is substantially equal to the inner side shape of the wall portion 112 of the connector housing 11. Therefore, the wall portion 122 of the shield member 12 cooperates with the inner surface of the wall portion 112 of the connector housing 11.

[0051] The through-hole 123 is formed in the flat plate portion 121 so as to correspond to the through-hole 114 of the connector housing 11 when the shield member 12 is fixed in the inner space of the connector housing 11. Also, the extension portion 124 is formed so as to extend from the edge portion of the through-hole 123 toward the rear side (-Z direction side). The extension portion 124 abuts against the inner side face of the through-hole 114 of the connector housing 11 when the shield member 12 is fixed in the inner space of the connector housing 11.

[0052] The four boss insertion holes 125 are formed in the flat plate portion 121 so as to correspond to the four bosses 115 of the connector housing 11, respectively, when the shield member 12 is fixed in the inner space of the connector housing 11. The four bosses 115 of the connector housing 11 are pressed into the four boss insertion holes 125 of the shield member 12, respectively, by pushing the shield member 12 from the front side (+Z direction side) to the connector housing 11, whereby the shield member 12 is fixed in the inner space of the connector housing 11.

[0053] A pair of slits 126 are formed on the flat portion 121 so that when the shielding member 12 is fixed within the internal space of the connector housing 11, the pair of slits 126 correspond to a pair of press-in grooves 116 of the connector housing 11. A pair of protrusions 133 of the housing 13 are pressed into the pair of press-in grooves 116 of the connector housing 11 via the pair of slits 126 of the shielding member 12, thereby fixing the housing 13 to the connector housing 11.

[0054] The retaining mechanism 127 has the function of retaining the thin coaxial cable 17. Figure 7 The image shows a magnified view of the surrounding area of ​​the retaining mechanism 127. (Example) Figure 7 As shown, the holding mechanism 127 consists of a pair of clamping portions 1271, which are formed by bending a portion of the flat plate portion 121 forward (+Z direction side). Each pair of clamping portions 1271 has: a base end portion 1272 integral with the flat plate portion 121; an extension portion 1273 extending forward (+Z direction side) from the base end portion 1272; a reduced diameter portion 1274 formed at the front end of the extension portion 1273; and a guide portion 1275 formed at the front end of the reduced diameter portion 1274.

[0055] A pair of clamping portions 1271 extend forward (+Z direction) from the flat portion 121. The separation distance between the reduced diameter portions 1274 of the pair of clamping portions 1271 is greater than that of the mounting portion 175 of the thin coaxial cable 17 described below (see...). Figure 8 The diameter of the clamping portion 1271 is small. The separation distance between the base ends 1272 of the pair of clamping portions 1271 is approximately equal to the diameter of the mounting portion 175 of the thin coaxial cable 17. Furthermore, the separation distance between the guide portions 1275 of the pair of clamping portions 1271 is larger than the separation distance between the reduced diameter portions 1274 of the pair of clamping portions 1271.

[0056] By pressing the mounting portion 175 of the thin coaxial cable 17 between the guide portions 1275 of a pair of clamping portions 1271, the mounting portion 175 of the thin coaxial cable 17 is clamped between the base ends 1272 of the pair of clamping portions 1271. At this time, since the separation distance between the reduced diameter portions 1274 of the pair of clamping portions 1271 is smaller than the diameter of the mounting portion 175 of the thin coaxial cable 17, the mounting portion 175 of the thin coaxial cable 17 is locked by the pair of clamping portions 1271. With this structure, the thin coaxial cable 17 can be held by the holding mechanism 127. By using such a holding mechanism 127 to hold the thin coaxial cable 17, the swinging of the thin coaxial cable 17 when vibration or impact is applied to the connector 1 is prevented.

[0057] Return to Figure 4 The outer casing 13 is a hollow cylindrical component made of metal. When the external coaxial cable 2 is connected to the connector 1, the outer casing 13 and the outer casing 25 of the external coaxial cable 2 (see reference)Figure 11 ) electrically connected. The housing 13 has a cylindrical main body portion 131, a flange portion 132 formed at the end portion of the main body portion 131 on the front side (+Z direction side), and a pair of protruding portions 133 protruding from the outer edge of the flange portion 132 toward the rear side (-Z direction side).

[0058] The main body portion 131 is inserted into the through hole 123 of the shield member 12 and the through hole 114 of the connector housing 11 from the front side (+Z direction side) of the rear plate 111 of the connector housing 11. The front end side of the main body portion 131 protrudes toward the rear side (-Z direction side) from the through hole 114 of the rear plate 111 and is positioned inside the opening 1131 of the fitting portion 113 of the connector housing 11. At this time, the outer periphery of the main body portion 131 is in contact with the extension portion 124 of the shield member 12.

[0059] The flange portion 132 extends from the base end portion of the main body portion 131 in the radial direction. When the main body portion 131 is inserted into the through hole 123 of the shield member 12 and the through hole 114 of the connector housing 11, the flange portion 132 is in abutment with the flat plate portion 121 of the shield member 12. Thus, the housing 13 is prevented from coming off toward the rear side (-Z direction side) via the through hole 123 of the shield member 12 and the through hole 114 of the connector housing 11. In addition, as shown in FIG. 6, in the state in which the connector 1 is assembled, the flange portion 132 is in contact with the metal housing 173 of the thin-wire coaxial cable 17. Thus, the housing 173 of the thin-wire coaxial cable 17 is electrically connected to the shield member 12 via the housing 13. Figure 11 The pair of protruding portions 133 extends from the outer edge of the flange portion 132 toward the rear side (-Z direction side). When the main body portion 131 is inserted into the through hole 123 of the shield member 12 and the through hole 114 of the connector housing 11, the pair of protruding portions 133 is pressed into the pair of press-in grooves 116 of the connector housing 11 via the pair of slits 126 of the shield member 12. Thus, the housing 13 is fixed to the connector housing 11.

[0060] The housing 14 is provided inside the housing 13 and has a function of holding the contact pin 15 inside the housing 13 in a state in which the housing 13 is insulated from the contact pin 15. The housing 14 is a cylindrical member made of an insulating material and is held inside the housing 13 by being pressed into the inside of the housing 13. The housing 14 has a cylindrical main body portion 141, a through hole 142 formed at the center of the main body portion 141, and a plurality of protrusions 143 formed at the base end side of the outer peripheral portion of the main body portion 141. The housing 14 is fixed inside the housing 13 by being pressed into the inside of the housing 13 in such a manner that the plurality of protrusions 143 are compressed and deformed.

[0061]

[0062] ​A through hole 142 is formed to allow the stylus 15 to be inserted. The stylus 15 is inserted into the through hole 142, with the front end of the stylus 15 protruding from the main body 141 of the housing 14 on the rear side (-Z direction side) and the base end of the stylus 15 protruding from the main body 141 of the housing 14 on the front side (+Z direction side).

[0063] The contact pin 15 is a rod-shaped component made of metal, inserted into the through hole 142 of the housing 14 located inside the housing 13. When connecting the external coaxial cable 2 to the connector 1, the contact pin 15 and the core wire 23 of the external coaxial cable 2 (see reference) Figure 11 Electrical connection. The contact pin 15 has a front end portion 151 and a base end portion 152. The front end portion 151 protrudes from the body portion 131 of the connector housing 11 behind the rear plate 111 (-Z direction side) via a through hole 142 in the housing 14. On the other hand, the base end portion 152 protrudes from the front side (+Z direction side) of the rear plate 111 of the connector housing 11. The diameter of the front end portion 151 is approximately equal to the diameter of the through hole 142 in the housing 14, and the diameter of the base end portion 152 is larger than the diameter of the through hole 142 in the housing 14. Therefore, the contact pin 15 is prevented from disengaging from the through hole 142 in the housing 14 to the rear side (-Z direction side).

[0064] With the external coaxial cable 2 installed in the connector 1, the front end 151 of the contact pin 15 contacts the terminal portion 22 of the external coaxial cable 2 and the core wire 23 of the external coaxial cable 2 (see reference). Figure 11 Electrical connection. On the other hand, the base 152 of the contact pin 15 is connected to the core wire 171 of the thin coaxial cable 17 (see reference). Figure 11 Electrical connection. Therefore, the contact pin 15 connects the external coaxial cable 2 to the thin coaxial cable 17. As described above, since the contact pin 15 is inserted into the through hole 142 of the housing 14 provided inside the housing 13, the housing 13, the housing 14, and the contact pin 15 form a coaxial cable structure.

[0065] The sealing member 16 has the function of liquid-tightly sealing the connector housing 11 from the rear side (-Z direction side). The sealing member 16 is a disc-shaped component made of insulating material, having a through hole 161 formed at its center and a circular slit 162 concentric with the through hole 161. The sealing member 16 is inserted from the rear side (-Z direction side) of the rear plate 111 into the opening 1131 of the mating portion 113 of the connector housing 11, with the contact pin 15 inserted in the through hole 161 and the main body 131 of the housing 13 inserted in the circular slit 162. With such a sealing member 16, the intrusion path of water from the rear side (-Z direction side) to the front side (+Z direction side) is blocked in the opening 1131 of the mating portion 113 of the connector housing 11, thereby liquid-tightly sealing the opening 1131 of the connector housing 11.

[0066] The thin coaxial cable 17 has a function of providing a coaxial connection between the external coaxial cable 2 and a circuit board of an external device provided in the other housing. As shown in Figure 8 , the thin coaxial cable 17 has a core wire 171, an inner side insulating layer 172 covering an outer side of the core wire 171, a metal-made outer shell 173 covering an outer side of the inner side insulating layer 172, an outer side insulating layer 174 covering an outer side of the outer shell 173, a mounting portion 175 held by the holding mechanism 127 of the shielding member 12, and a connector 176 mounted to an end portion of one side of the core wire 171.

[0067] The core wire 171 is a wiring made of a metal material having a high electric conductivity such as copper. An end portion of one side of the core wire 171 is connected to the connector 176, and an end portion of the other side is soldered to the base end portion 152 of the contact pin 15 via a soldering portion 177 (refer to Figure 10 and Figure 11 ). The inner side insulating layer 172 is made of an insulating material, and is provided to cover the outer side of the core wire 171. The outer shell 173 is a cylindrical member made of a metal material, and is provided to cover the outer side of the inner side insulating layer 172. The outer side insulating layer 174 is made of an insulating material, and is provided to cover the outer side of the outer shell 173. Thus, a coaxial cable structure is formed by the core wire 171, the inner side insulating layer 172, and the outer shell 173.

[0068] The mounting portion 175 is made of a metal material, and is a cylindrical member provided to the outer side of the outer shell 173. In the thin coaxial cable 17, the outer side insulating layer 174 is omitted in a portion in which the mounting portion 175 is formed, and the mounting portion 175 is in contact with the outer shell 173. That is, the mounting portion 175 is electrically connected to the outer shell 173. As described above, the base end portions 1272 of the pair of clamping portions 1271 of the holding mechanism 127 of the shielding member 12 are integrated with the flat plate portion 121 of the shielding member 12, so that if the mounting portion 175 of the thin coaxial cable 17 is held between the pair of clamping portions 1271 of the holding mechanism 127 of the shielding member 12, the outer shell 173 of the thin coaxial cable 17 is electrically connected to the shielding member 12.

[0069] The connector 176 is formed at the end portion of one side of the core wire 171, and is connected to a corresponding connector of a circuit board of an external device provided in the other housing. If the connector 176 is connected to the corresponding connector of the circuit board of the external device, a coaxial connection between the external coaxial cable 2 and the circuit board of the external device is provided.

[0070] Returning to Figure 4 , the protection member 18 is a film-like member made of an insulating material, and covers and protects the soldering connection by the soldering portion 177 between the end portion of the other side of the core wire 171 of the thin coaxial cable 17 and the base end portion 152 of the contact pin 15.Figure 11 A protective component 18 is provided on the flange portion 132 of the housing 13 so that, when the other end of the core wire 171 of the thin coaxial cable 17 is soldered to the base end portion 152 of the contact pin 15 via the solder portion 177, the protective component 18 covers the connection portion between the other end of the core wire 171 of the thin coaxial cable 17 and the base end portion 152 of the contact pin 15. The protective component 18 protects the connection portion between the other end of the core wire 171 of the thin coaxial cable 17 and the base end portion 152 of the contact pin 15, and prevents the solder connection between the other end of the core wire 171 of the thin coaxial cable 17 and the base end portion 152 of the contact pin 15 from detaching.

[0071] Figure 9 The image shows a top view of connector 1 with the aforementioned components, viewed from the rear side. Figure 10 The image shows a top view of connector 1 with the aforementioned components, viewed from the front side. Figure 9 As shown, on the side opposite to the external coaxial cable 2, the front end 151 of the contact pin 15 and the main body 131 of the housing 13 are exposed within the opening 1131 of the fitting portion 113. When the external coaxial cable 2 is fitted into the fitting portion 113 of the connector 1, the terminal portion 22 of the external coaxial cable 2 contacts the contact pin 15 and the housing 13 of the connector 1, providing a coaxial connection between the external coaxial cable 2 and the connector 1.

[0072] And, as Figure 10 As shown, the mounting portion 175 of the thin coaxial cable 17 is held by the retaining mechanism 127 of the shielding member 12. This prevents the thin coaxial cable 17 from swinging after vibration or impact is applied to the connector 1, thereby preventing unexpected disconnection of the connection between the thin coaxial cable 17 and the external coaxial cable 2, and between the thin coaxial cable 17 and the circuit board of an external device housed in another housing. Furthermore, as described above, by holding the mounting portion 175 of the thin coaxial cable 17 by the retaining mechanism 127 of the shielding member 12, the outer shell 173 of the thin coaxial cable 17 is electrically connected to the shielding member 12. With this structure, the electrical characteristics of the coaxial connection of the connector 1 can be improved.

[0073] Furthermore, as described above, the other end of the core wire 171 of the thin-wire coaxial cable 17 is soldered to the base end 152 of the contact pin 15 via the solder portion 177. Therefore, compared to connecting the other end of the core wire 171 of the thin-wire coaxial cable 17 to the base end 152 of the contact pin 15 via any type of connector, the connection between the other end of the core wire 171 of the thin-wire coaxial cable 17 and the base end 152 of the contact pin 15 is made more stable. Moreover, since the connection portion between the other end of the core wire 171 of the thin-wire coaxial cable 17 and the base end 152 of the contact pin 15 is covered by the protective member 18, the connection between the other end of the core wire 171 of the thin-wire coaxial cable 17 and the base end 152 of the contact pin 15 is further strengthened. With this structure, the reliability of the connector 1 connection can be improved.

[0074] Furthermore, the electrical connection between the external coaxial cable 2 provided by connector 1 and the circuit board of the external device housed in another housing is a coaxial connection. As explained in the prior art section, coaxial connections have higher transmission characteristics in the high-frequency band compared to connections using multiple terminals. Therefore, by providing a coaxial connection between the external coaxial cable 2 provided by connector 1 and the circuit board of the external device housed in another housing, it is possible to transmit large amounts of data with low noise and in a short time.

[0075] Figure 11 The image shows a cross-sectional view of the external coaxial cable 2 and the connector 1 in the YZ plane, indicating that the external coaxial cable 2 is installed with the connector 1. Figure 11 As shown, the external coaxial cable 2 has: a core wire 23; an inner insulation layer 24 covering the outer side of the core wire 23; a metal outer shell 25 covering the outer side of the inner insulation layer 24; and an outer insulation layer 26 covering the outer side of the outer shell 25. The core wire 23, the inner insulation layer 24, and the outer shell 25 constitute the coaxial cable structure of the external coaxial cable 2. The core wire 23 and the outer shell 25 are electrically connected to the terminal portion 22. Figure 11 As shown, when the external coaxial cable 2 is engaged with the fitting portion 113 of the connector housing 11 of the connector 1, the front end 151 of the pin 15 of the connector 1 and the main body 131 of the housing 13 come into contact with the terminal portion 22 of the external coaxial cable 2. The pin 15 of the connector 1 is electrically connected to the core wire 23 of the external coaxial cable 2 via the terminal portion 22 of the external coaxial cable 2. In addition, the housing 13 of the connector 1 is electrically connected to the housing 25 of the external coaxial cable 2. With this structure, a coaxial connection between the connector 1 and the external coaxial cable 2 is provided.

[0076] In this state, if the connector 1 thin coaxial cable 17 connector 176 is connected coaxially with the circuit board of the external device provided in the other housing, the connector 1 provides a coaxial connection between the external coaxial cable 2 and the circuit board of the external device.

[0077] The above describes the connector 1 of the present application based on the illustrated embodiment, but electronic devices including the connector 1 of the present application described above, and the circuit board provided in a housing different from the connector housing 11 of the connector 1 and connected to the connector 1 also fall within the scope of the present application.

[0078] The above describes the connector and the electronic device of the present application based on the illustrated embodiment, but the present application is not limited thereto. Each structure of the present application can be replaced with any structure capable of achieving the same function, or any component can be added to each structure of the present application.

[0079] For those skilled in the art in the field and technology to which the present application belongs, modifications of the structures of the connector of the present application described above can be performed without intentionally departing from the principles, ideas, and scope of the present application, and the connector having the modified structure also falls within the scope of the present application.

[0080] Also, Figures 2-11 The number and kind of the constituent elements of the connector shown are merely examples for explanation, and the present application is not limited thereto. In a range not departing from the principles and ideas of the present application, a manner after adding or combining any constituent element, or deleting any constituent element also falls within the scope of the present application.

Claims

1. A connector for providing a coaxial connection between a circuit board provided in another housing located on a front side and an external coaxial cable, the connector characterized by comprising: a box-shaped connector housing having a rear plate, a wall portion extending from an outer edge of the rear plate toward the front side, and a fitting portion formed on a rear side surface of the rear plate and fitted with the external coaxial cable, and mounted in the other housing located on the front side; a fine wire coaxial cable having a core wire and a metal outer shell concentric with the core wire, for providing the coaxial connection between the external coaxial cable fitted with the fitting portion of the connector housing and the circuit board provided in the other housing; and a shield member provided in an internal space of the connector housing defined by the rear plate and the wall portion of the connector housing, and electrically connected to the outer shell of the fine wire coaxial cable, the shield member having a holding mechanism for holding the fine wire coaxial cable.

2. The connector according to claim 1, wherein the fine wire coaxial cable has a mounting portion electrically connected to the outer shell, and the shield member is electrically connected to the outer shell of the fine wire coaxial cable when the mounting portion of the fine wire coaxial cable is held by the holding mechanism of the shield member.

3. The connector according to claim 1, wherein the shield member has a flat plate-shaped main body portion located on the rear plate in the internal space of the connector housing, and the holding mechanism formed integrally with the main body portion.

4. The connector according to claim 2, wherein the shield member has a flat plate-shaped main body portion located on the rear plate in the internal space of the connector housing, and the holding mechanism formed integrally with the main body portion.

5. The connector according to claim 4, wherein the holding mechanism includes a pair of extension portions formed by bending a portion of the main body portion toward the front side, and the holding mechanism holds the fine wire coaxial cable by clamping the mounting portion of the fine wire coaxial cable with the pair of extension portions.

6. The connector according to any one of claims 1 to 5, further comprising a contact pin connecting between the external coaxial cable and the core wire of the fine wire coaxial cable, and the core wire of the fine wire coaxial cable is soldered to the contact pin.

7. The connector according to claim 6, wherein the contact pin is inserted through the rear plate of the connector housing with one end portion located on the front side of the rear plate and the other end portion located on the rear side of the rear plate, the one end portion of the contact pin is soldered to the core wire of the fine wire coaxial cable, and the other end portion of the contact pin is connected to the external coaxial cable.

8. The connector according to claim 7, wherein a connection portion between the one end portion of the contact pin and the core wire of the fine wire coaxial cable is covered by an insulating protective member. including: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. An electronic device, comprising: ​ The connector as set forth in any one of claims 1 to 8; and A circuit board disposed in a different housing from the connector housing of the above-described connector and connected to the above-described connector.

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