JP2018111362A - Vehicular information terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular information terminal capable of achieving both of size reduction of a main case, and suppression of occurrence of allophone caused by vehicle body vibration.SOLUTION: A main case 1 and a holder case 2 are connected by an arm 3 formed into a cylindrical shape. The main case 1 stores a first substrate 7 on which, a display 5 and an electric component for providing a prescribed function are mounted, and the holder case 2 stores a second substrate 8 on which a circuit for providing a function different from that mounted on the first substrate 7 is mounted. The first substrate 7 and the second substrate 8 are connected by a flexible cable 4 arranged in the arm 3. The flexible cable 4 is longer than the arm 3, and contacts the arm 3 in a prescribed area in an inner surface part of the arm 3. An area to which the flexible cable 4 is pressed on the arm 3 has a cushioning member 9.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle information terminal as an information processing terminal attached to a car after factory shipment by a user or the like.

  An information processing terminal (hereinafter referred to as a vehicle information terminal) including a display and an input device may be attached to a car after shipment from a factory by a user or the like. Such a vehicle information terminal includes, for example, a portable navigation device (hereinafter, portable navigation).

  In Patent Document 1, a fixed portion for attaching a portable navigation to a dashboard of a vehicle, a main case in which a display, a circuit board, and the like are accommodated, a column (hereinafter referred to as an arm) that connects the fixed portion and the housing, The structure provided with this is disclosed.

JP 2008-239003 A

  When a new function is added to the vehicle information terminal, the number of circuits to be mounted on the circuit board increases, so that the circuit board increases in size, and as a result, the main case also increases in size. As one configuration for solving such a problem, a circuit board that provides a part of the functions to be provided in the vehicle information terminal is arranged in a case (hereinafter referred to as a holder case) that also functions as a fixed portion. And the structure (henceforth assumption structure) which connected the circuit board accommodated in the main case and the circuit board accommodated in the holder case with the communication cable can be considered.

  In the assumed configuration, the main case and the holder case are connected by a cylindrical configuration (hereinafter referred to as an arm) for supporting the posture of the main case with respect to the holder case. Further, by accommodating the communication cable connecting the two circuit boards in the cylindrical arm, the communication cable can be protected and the appearance can be made clear.

  However, in the assumed configuration as described above, there is a concern that the communication cable comes into contact with the inner side surface of the arm due to the vibration of the vehicle accompanying the traveling of the vehicle and the like, and unpleasant noise (for example, a hitting sound) is generated.

  The present invention has been made based on this situation, and an object of the present invention is to provide an information terminal for a vehicle that can achieve both the miniaturization of the main case and the suppression of the generation of abnormal noise caused by body vibration. There is to do.

  In order to achieve the object, the present invention is a vehicle information terminal including a display (5) for displaying information for a passenger seated in a driver's seat of a vehicle, and provides a predetermined first function. A first substrate (7) on which a circuit is mounted, a first housing (1) that houses a display, and a second substrate (8) on which a circuit that provides a second function different from the first function is mounted A second housing (2) that accommodates the first housing, the arm (3) that connects the first housing and the second housing, and supports the posture of the first housing relative to the second housing; A cable (4) for connecting the substrate and the second substrate, the first housing includes a first hole (14) for passing the cable, and the second housing for passing the cable The second hole portion (24) is provided, the arm includes a hollow portion that communicates the first hole portion and the second hole portion, and the cable includes an arm. It is arranged so as to pass through a hollow portion as an inner space and to come into contact with a predetermined contact area provided in the inner surface of the arm, and a buffer member (9) that is elastically deformed is attached to the contact area. It is characterized by.

  In the above configuration, the cable is disposed so as to abut against the buffer member provided on the inner surface of the arm. Therefore, it is possible to reduce the possibility that the cable comes into contact with the inner side surface of the arm and causes unpleasant noise (for example, hitting sound, etc.) due to vehicle body vibration accompanying traveling of the vehicle.

  Moreover, the function which a vehicle information terminal should be equipped with can be mounted using not only the 1st board | substrate accommodated in a 1st housing | casing but the 2nd board | substrate accommodated in a 2nd housing | casing. Therefore, the 1st housing | casing as a main case can be reduced compared with the structure which mounts the function which the information terminal for vehicles should have using only one board | substrate.

  In addition, the code | symbol in the parenthesis described in the claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of this invention is limited is not.

It is the figure which showed the example of attachment to the vehicle of the portable navigation 100. FIG. It is the figure which represented notionally the internal structure when the portable navigation 100 was seen from the side. 1 is a block diagram showing a schematic configuration of a portable navigation 100. FIG. 2 is an external perspective view of a state in which a portable navigation system 100 is attached to a vehicle mounting bracket 300. FIG. It is a figure for demonstrating the state where the flexible cable 4 has waved. 4 is a cross-sectional view of a portion of the arm 3 where a buffer member 9 is provided. FIG. It is a figure when the structure shown in FIG. 6 is seen from another viewpoint. It is a figure for demonstrating an example of the determination method of the contact area in the arm. It is a figure showing the composition of arm 3 in modification 1. It is the figure which showed the example of attachment to the vehicle of the portable navigation 100. FIG. It is the figure which showed the schematic structure of the portable navigation 100 attached and used for the dashboard 400. FIG. It is the figure which showed the structure of the portable navigation 100 attached and used for a bar-type handle.

[Embodiment]
Hereinafter, as an example of an embodiment of the present invention, a portable navigation device (hereinafter referred to as portable navigation) 100 to which the present invention is applied will be described with reference to the drawings. FIG. 1 is a diagram illustrating an example of a state in which the portable navigation system 100 is attached to a vehicle. The portable navigation system 100 is used by being attached to a windshield 200 or the like of a vehicle so that a display surface 51 of the display 5 described later faces a driver's seat.

<About functions of portable navigation 100>
Before describing the configuration of the portable navigation 100, first, various functions provided in the portable navigation 100 will be schematically described. The portable navigation 100 is a device having a function as a known navigation device that performs route guidance and the like (hereinafter referred to as a navigation function). In addition, the portable navigation 100 has a function of positioning the current position based on a navigation signal transmitted from a positioning satellite used in a GNSS (Global Navigation Satellite System) (hereinafter referred to as a sub-function for realizing a navigation function). GNSS function). Note that GNSS includes GPS (Global Positioning System), Galileo, GLONASS, and the like.

  The portable navigation 100 has a wide area communication function and a narrow area communication function in addition to the navigation function and the GNSS function. The wide area communication function is a function of performing wireless access to a wide area communication network such as a cellular phone network and communicating with a communication device (for example, a center) existing outside the vehicle. For convenience, communication via a wide area communication network is referred to as wide area communication in order to distinguish it from communication based on other systems. As a communication method for realizing wide area communication, any mobile communication method can be adopted. Here, as an example, it is assumed that the portable navigation 100 performs wide-area communication based on the LTE standard.

  The narrow-area communication function performs wireless communication with equipment (hereinafter referred to as a roadside device) arranged on a road without using a wireless base station or the like (that is, directly) in accordance with a predetermined communication method. It is a function. For example, DSRC (Dedicated Short Range Communications) based on wireless LAN technology, WAVE (Wireless Access in Vehicular Environment) standard disclosed in IEEE 1609, etc. are adopted as a communication method for realizing the narrow area communication function. be able to. Here, it is assumed that the portable navigation 100 is configured to communicate with a roadside machine or the like using DSRC.

  The roadside machine is installed above the road (for example, a position where the height from the road surface is 6 m) so as to distribute information to a limited area on the road. That is, the roadside machine is a communication device arranged at a position higher than the roof of the vehicle. The information distributed by the roadside machine is, for example, road traffic information such as traffic jams and accidents, safe driving support information, and the like. As another aspect, the roadside machine may be a communication facility that constitutes an automatic toll collection system that performs payment processing of toll road usage charges provided at the entrance and exit of toll roads. The narrow area communication function may perform communication with a communication device that provides a narrow area communication function mounted on another vehicle. That is, the narrow area communication function may provide inter-vehicle communication.

<About the configuration of the portable navigation 100>
Next, an example of the configuration of the portable navigation 100 for realizing the various functions described above will be described. As shown in FIGS. 2 and 3, the portable navigation system 100 includes two cases, a main case 1 and a holder case 2, which are connected by an arm 3. The arm 3 is a tubular member curved in an arcuate shape, and is configured to allow the flexible cable 4 to pass therethrough. For convenience, the direction from the main case 1 to the holder case 2 is referred to as a depth direction. The arrow in FIG. 2 indicates the depth direction. The main case 1 corresponds to the first casing described in the claims, and the holder case 2 corresponds to the second casing described in the claims.

  The main case 1 accommodates a display 5, a touch panel 6 stacked on the display surface 51 of the display 5, and a first substrate 7 that is a printed circuit board on which various electronic components are arranged. The holder case 2 accommodates a second substrate 8 that is a printed circuit board on which various electronic components are mounted. The first substrate 7 and the second substrate 8 are connected by the flexible cable 4.

  As described at the beginning, this portable navigation device 100 is a device that is premised on being arranged and used so that the display surface 51 of the display 5 faces the driver's seat. Therefore, the portable navigation 100 is set up and down and left and right so as to correspond to the display direction of the display 5. Note that the left-right direction and the up-down direction for the portable navigation 100 correspond to the left-right direction and the up-down direction for the main case 1.

  In addition, the portable navigation system 100 of the present embodiment is attached to the vehicle so that the horizontal direction of the main case 1 is parallel to the horizontal plane for the vehicle (hereinafter referred to as the vehicle horizontal plane), and the vertical direction coincides with the height direction of the vehicle. It is assumed that it is configured on the assumption that The state indicated by the match here is not limited to a complete match. It also includes a state in which the person sitting in the driver's seat is inclined enough to recognize the display contents on the display 5 without a sense of incongruity. The vehicle horizontal plane is a plane perpendicular to the height direction of the vehicle.

  The portable navigation 100 may be attached to the vehicle via, for example, a vehicle attachment bracket 300 attached to the windshield 200 with a double-sided tape or the like. The vehicle mounting bracket 300 is a member that holds the portable navigation 100. By attaching the holder case 2 to the vehicle mounting bracket 300, the portable navigation system 100 is locked to the vehicle. FIG. 4 is an external perspective view of a state in which the portable navigation 100 and the vehicle mounting bracket 300 are integrated.

  The installation position of portable navigation 100 on windshield 200 may be determined by the user. The portable navigation system 100 is preferably arranged in the peripheral visual field, particularly in the effective visual field in a state where the driver's seat occupant is looking in the front direction of the vehicle. The portable navigation system 100 according to the present embodiment is configured on the assumption that the portable navigation system 100 is used by being mounted at the same height as the driver's seat occupant's line of sight.

  The shape of the main case 1 may be designed as appropriate. Here, as an example, it is assumed that the main case 1 is formed in a flat rectangular parallelepiped shape whose thickness direction is a direction perpendicular to the first substrate 7. The thickness of the main case 1 only needs to be large enough to accommodate predetermined objects such as the display 5, the touch panel 6, and the first substrate 7. The thickness direction corresponds to the aforementioned depth direction. In addition, the surface parallel to the first substrate 7 in the main case 1 is formed in a rectangular shape whose length in the left-right direction is longer than the length in the vertical direction.

  The shape of the holder case 2 may be designed as appropriate. Here, as an example, it is assumed that the holder case 2 is formed in a flat rectangular parallelepiped shape whose thickness direction is a direction perpendicular to the second substrate 8. The thickness of the holder case 2 only needs to be large enough to accommodate the second substrate 8 on which various electronic components are mounted.

  Reference numeral 21 shown in FIG. 2 represents a surface (hereinafter referred to as a holder upper surface portion) that faces relatively upward in the holder case 2 when the portable navigation 100 is attached to the vehicle in a correct posture. The correct mounting posture here is the mounting posture assumed when the portable navigation 100 is designed, and the display direction (that is, up and down) of the display 5 is correct, and the display surface 51 of the display 5 is in the driver's seat. It is a directed posture. Specific configurations of the main case 1, the holder case 2, and the arm 3 will be described later.

<About the contents of the main case 1>
Here, various configurations housed in the main case 1 will be described. The display 5 is a display device including a display surface 51 that displays various information. The display surface 51 provided in the display 5 is formed in a rectangular shape. Accordingly, the appearance of the display 5 is also a flat rectangular parallelepiped. For convenience, the surface of the display 5 opposite to the display surface 51 is referred to as a back surface portion. As described above, the portion of the main case 1 where the display surface 51 of the display 5 is disposed is an opening, and the display 5 is accommodated in the main case 1 so that the display surface 51 can be seen from the outside.

  As the display 5, a liquid crystal display, an organic EL display, or the like can be used. Here, as an example, the display 5 is assumed to be realized by using an LCD (Liquid Crystal Display) module. The display 5 is driven based on a control signal from a display controller, which will be described later, and displays an image.

  The touch panel 6 is a capacitive touch panel, for example, and is stacked on the display surface 51 of the display 5. The touch panel 6 sequentially outputs, to the touch panel controller 72, whether or not the touch panel 6 is touched by the user and, if touched, a signal indicating the touch position (hereinafter, touch position signal).

  Note that the touch panel 6 may be a touch panel that detects a user's touch position by a method other than the capacitance type (for example, a pressure-sensitive type). In addition, here, a configuration is disclosed in which the touch panel 6 is employed as a device (that is, an input device) for a user to input an instruction to the portable navigation 100, but the present invention is not limited thereto. A well-known device such as a hardware switch, a mouse, a haptic device, or the like can be used as the input device.

  The first substrate 7 is formed in a substantially rectangular shape. The first substrate 7 is accommodated in the main case 1 so as to face the back surface of the display 5. The circuit module mounted on the first substrate 7 may be appropriately designed so as to provide a desired function. Here, as an example, it is assumed that a display controller 71, a touch panel controller 72, a main control unit 73, a power supply circuit 74, and a main-side connector 75 are arranged on the first substrate 7. The display controller 71, the touch panel controller 72, the main control unit 73, the power supply circuit 74, and the main-side connector 75 may be appropriately designed on the first substrate 7.

  The display controller 71 is a component that controls the operation of the display 5. The display controller 71 is connected to the display 5 through a cable (not shown) so as to be able to communicate with each other. The display controller 71 is also connected to the main control unit 73 so that they can communicate with each other. The display controller 71 generates a control signal based on the display data input from the main control unit 73 and outputs the control signal to the display 5 to display an image corresponding to the display data.

  The touch panel controller 72 is a component that controls the operation of the touch panel 6. The touch panel controller 72 is connected to the touch panel 6 through a cable (not shown) so as to be able to communicate with each other. The touch panel controller 72 is also connected to the main control unit 73 so as to be able to communicate with each other. The touch panel controller 72 converts the touch position signal output from the touch panel 6 into data in a format that can be recognized by the main control unit 73 and provides the converted data to the main control unit 73.

  The main control unit 73 is configured as a computer including a CPU 731 as a central processing unit, a RAM 732 as a volatile memory, and a ROM 733 as a nonvolatile memory. The ROM 733 stores various programs for causing a normal computer to function as the main control unit 73.

  The main control unit 73 provides a navigation function by the CPU 731 executing a program stored in the ROM 733. Further, display data to be displayed on the display 5 is created based on data input from the touch panel controller 72 or the like and the program, and the display data is output to the display controller 71. In addition, in conjunction with a power supply circuit 74 described later, the portable navigator 100 is turned on / off.

  The power supply circuit 74 is a circuit that converts a power supply voltage supplied from a power supply (not shown) into an operation voltage suitable for the operation of each unit included in the portable navigation 100. The operating voltage generated by the power supply circuit 74 is supplied to each unit. The power source may be a battery built in portable navigation 100 or an in-vehicle battery. In the case where the in-vehicle battery is used as the power source of the portable navigation 100, the portable navigation 100 is connected to the in-vehicle battery through a power cable (not shown).

  The main connector 75 is a connector for electrically connecting the flexible cable 4 and the first substrate 7. That is, the first substrate 7 is connected to one end of the flexible cable 4 via the main-side connector 75. Note that the other end of the flexible cable 4 is electrically connected to the second substrate 8 via a holder-side connector 87.

  The main-side connector 75 is disposed at a position on the first substrate 7 that faces a later-described extraction hole 14. The position where the main-side connector 75 is disposed on the first substrate 7 corresponds to the first substrate-side connection point described in the claims. Further, a plane that passes through the main-side connector 75 and is orthogonal to the left-right direction of the main case 1 corresponds to the center plane described in the claims. Hereinafter, when the main-side connector 75 and the holder-side connector 87 are not distinguished, they are described as connectors.

  The function provided by the circuit module mounted on the first substrate 7 corresponds to the first function recited in the claims. Specifically, a function for controlling display on the display 5 based on a user operation on the touch panel 6, a power supply control function, a function for performing arithmetic processing using data provided from various communication modules described later, and the like are claimed. This corresponds to the first function described in the item.

<Configuration of Second Substrate 8>
Here, the configuration of the second substrate 8 accommodated in the holder case 2 will be described. The second substrate 8 is formed in a substantially rectangular shape and is accommodated in the holder case 2 so as to face the holder upper surface portion 21. The second substrate 8 includes an upper side surface 8A that faces relatively upward and a lower side surface 8B that faces relatively downward when the main case 1 is arranged in a correct posture.

  The electronic components mounted on the second substrate 8 may be designed as appropriate. Here, as an example, it is assumed that the GNSS antenna 81, the GNSS module 82, the DSRC antenna 83, the DSRC module 84, the LTE antenna 85, the LTE module 86, and the holder side connector 87 are arranged on the second substrate 8.

  The GNSS antenna 81 is an antenna for receiving a navigation signal transmitted by a positioning satellite (hereinafter referred to as a GNSS satellite) provided in the GNSS. For example, the GNSS antenna 81 may be an antenna that receives circularly polarized waves in the 1.5 GHz band. The GNSS antenna 81 is electrically connected to the GNSS module 82 and outputs an electrical signal corresponding to the received radio wave.

  The GNSS antenna 81 is arranged on the upper side surface 8A such that the center of directivity faces the direction from the lower side surface 8B toward the upper side surface 8A (hereinafter, the second substrate orthogonal direction). The state where the center of directivity is oriented in the second substrate orthogonal direction is not limited to the state where the directivity center completely coincides with the second substrate orthogonal direction. The center of directivity may be shifted by about 45 ° from the direction orthogonal to the second substrate.

  The GNSS module 82 executes arithmetic processing such as positioning of the current position based on the signal received by the GNSS antenna 81. The GNSS module 82 is connected to the holder-side connector 87. Thereby, the GNSS module 82 is connected to the main control unit 73 through the holder-side connector 87 and the flexible cable 4 so as to be able to communicate with each other. The place where the GNSS module 82 is installed on the second substrate 8 may be designed as appropriate. For example, it may be arranged near the position corresponding to the back side of the GNSS antenna 81 on the lower surface 8B. The GNSS antenna 81 and the GNSS module 82 are components for realizing the above-described GNSS function.

  The DSRC antenna 83 is an antenna for transmitting and receiving radio waves in a frequency band (for example, 5.8 GHz band) adopted as a carrier wave in DSRC. The DSRC antenna 83 is provided such that the center of directivity faces the second substrate orthogonal direction on the upper side surface 8A. The DSRC antenna 83 is electrically connected to the DSRC module 84.

  The DSRC module 84 is connected to the main control unit 73 via the holder-side connector 87, the flexible cable 4, and the like. The DSRC module 84 demodulates the signal received by the DSRC antenna 83 and provides it to the main control unit 73. In addition, data input from the main control unit 73 is modulated and output to the DSRC antenna 83 to be radiated as radio waves. The place where the DSRC module 84 is installed on the second substrate 8 may be appropriately designed. For example, it may be arranged near the position corresponding to the back side of the DSRC antenna 83 on the lower side surface 8B. The DSRC antenna 83 and the DSRC module 84 are configured to realize the above-described narrow area communication function.

  The LTE antenna 85 is an antenna for transmitting and receiving radio waves in a frequency band adopted as a carrier wave in the LTE standard. The LTE antenna 85 is provided on the upper side surface 8A so that the center of directivity faces the second substrate orthogonal direction. The LTE antenna 85 is electrically connected to the LTE module 86.

  The LTE module 86 is connected to the main control unit 73 via the holder-side connector 87, the flexible cable 4, and the like. The LTE module 86 demodulates the signal received by the LTE antenna 85 and provides it to the main control unit 73. In addition, data input from the main control unit 73 is modulated and output to the LTE antenna 85 to be radiated as radio waves. The place where the LTE module 86 is installed on the second substrate 8 may be designed as appropriate. For example, it may be arranged in the vicinity of a position corresponding to the back side of the LTE antenna 85 on the lower side surface 8B.

  The holder-side connector 87 is a connector for electrically connecting the flexible cable 4 and the second substrate 8. That is, the second substrate 8 is connected to one end of the flexible cable 4 via the holder-side connector 87. Thereby, the second substrate 8 and the first substrate 7 are electrically connected. The holder-side connector 87 is disposed at a position facing the extraction hole 24 formed in the holder lower surface portion 22 on the lower side surface 8B. The holder-side connector 87, the lead-out hole 24, the lead-out hole 14, and the main-side connector 75 are each provided at a position in the same plane when the angle adjustment amount of the main case 1 is set to 0 °. . The position where the holder-side connector 87 is disposed on the second substrate 8 corresponds to the second substrate-side connection point described in the claims.

  The arrangement of various antennas on the upper side surface 8A may be appropriately designed. Each antenna is preferably arranged at a position where it is difficult to interfere with other antennas. The various antennas are preferably planar antennas such as patch antennas and plate-like inverted F antennas. According to such a configuration, the thickness of the holder case 2 can be reduced.

  The function provided by the circuit module mounted on the second substrate 8 corresponds to the second function described in the claims. That is, in the present embodiment, each of the GNSS function, the narrow area communication function, and the wide area communication function corresponds to the second function described in the claims.

<About the structure of the main case 1, the holder case 2, and the arm 3>
Next, the configuration of the main case 1, the holder case 2, and the arm 3 will be described. As described above, the main case 1 and the holder case 2 are each formed in a flat rectangular parallelepiped shape. Here, as an example, the main case 1 is made of resin, but as another aspect, the main case 1 may be made of metal. In addition, a resin part and a metal part may be combined. The same applies to the holder case 2 and the arm 3.

  An opening for exposing the display surface 51 of the display 5 is provided in one surface (hereinafter, main surface portion) 11 of the surfaces orthogonal to the thickness direction in the main case 1. Further, a hole (hereinafter referred to as a drawing hole) through which the flexible cable 4 is passed at a position facing the main side connector 75 on a surface (hereinafter referred to as a main back surface portion) 12 opposite to the main surface portion 11 in the main case 1. 14 is provided. The lead-out hole 14 corresponds to a first hole described in the claims.

  In addition, an arm holding portion 13 for maintaining a state where one end of the arm 3 and the main case 1 are connected is provided at a location where the extraction hole 14 is provided in the main back surface portion 12. For convenience, the end of the arm 3 on the side connected to the main case 1 is referred to as a main case end 31.

  In the present embodiment, as an example, the connecting portion between the arm 3 and the main case 1 has a known ball joint structure so that the angle (in other words, the posture) made by the arm 3 with respect to the main case 1 can be changed. ing. That is, the main case side end portion 31 is formed in a spherical shape (in other words, a ball shape), and the arm holding portion 13 is configured to cover most of the main case side end portion 31.

  More specifically, the arm holding portion 13 is realized by combining a ball receiving portion 131 and a cap member 132. The ball receiving portion 131 is a member having a portion formed in a concave shape so as to come into contact with the surface of the main case side end portion 31 formed in a spherical shape. A through hole for passing the flexible cable 4 is provided in the center of the ball receiving portion 131. The ball receiving portion 131 is fixed to the main back surface portion 12 with screws or the like. Specifically, the ball receiving portion 131 is disposed at a position where the through hole communicates with the extraction hole 14 provided in the main back surface portion 12.

  The cap member 132 is a member for maintaining the state in which the main case side end portion 31 is in contact with the ball receiving portion 131 by covering the main case side end portion 31 in contact with the ball receiving portion 131 from the outside. It is. When the main case side end portion 31 is sandwiched between the cap member 132 and the ball receiving portion 131, the angle of the arm 3 with respect to the main case 1 is held so as to be adjustable. However, the arm holding portion 13 and the main case side end portion 31 are configured to generate a frictional force that does not change the posture of the main case 1 with respect to the arm 3 due to gravity, vehicle body vibration, or the like. The frictional force generated between the arm holding portion 13 and the main case side end portion 31 can be adjusted by adjusting the force with which the cap member 132 presses the main case side end portion 31.

  The arm holding part 13 should just be designed so that the movable range of the arm 3 with respect to the main case 1 may be about 45 degrees. The arm 3 according to this embodiment has an angle (hereinafter referred to as a pitch angle) θ of the main case 1 with respect to the holder case 2 in a side view of 90 degrees when the angle adjustment amount in the arm holding portion 13 is 0 degrees, and the top surface. It is assumed that the angle (hereinafter referred to as the yaw angle) formed by the left-right direction for the holder case 2 and the left-right direction for the main case 1 is 0 degree in view. 2 and the like show a state in which the pitch angle θ is adjusted to about 120 ° while the yaw angle is set to 0 °.

  In the present embodiment, a configuration in which a mechanism (hereinafter referred to as an angle adjusting mechanism) for adjusting the angle of the main case 1 with respect to the holder case 2 is provided at a connection portion between the main case 1 and the arm 3 is disclosed. Not limited to. The angle adjustment mechanism may be provided at the connection portion between the holder case 2 and the arm 3. As another aspect, the angle of the main case 1 with respect to the holder case 2 may be configured so as not to be adjustable. The angle adjustment mechanism may be realized using a structure other than the ball joint structure.

  In the holder case 2, a surface opposite to the holder upper surface portion 21 (hereinafter referred to as a holder lower surface portion) 22 is provided with a holder case side end portion 32 that is an end portion opposite to the main case side end portion 31 in the arm 3. A configuration (hereinafter referred to as an arm fitting portion) 23 for connection is provided. The connection between the holder case 2 and the arm 3 may be realized by adopting, for example, a screw-type fitting structure or a fitting structure using a hook.

  Here, as an example, the holder case 2 and the arm 3 are locked by a fitting structure using a hook. For example, the hook should just be arrange | positioned at the holder case side edge part 32. FIG. In that case, the arm fitting portion 23 is provided with a hook receiving portion that engages with a hook provided on the holder case side end portion 32. According to such a configuration, the holder case 2 and the arm 3 can be connected by pushing the holder case side end portion 32 of the arm 3 into the opening of the arm fitting portion 23. A drawer hole 24 through which the flexible cable 4 is passed is provided in a portion of the holder lower surface portion 22 where the arm fitting portion 23 is provided. The lead-out hole 24 provided in the holder case 2 corresponds to the second hole portion recited in the claims.

  The arm 3 is a cylindrical member having a hollow portion communicating from the main case side end portion 31 to the holder case side end portion 32. The arm 3 may be realized by bending / curving a cylindrical member. The arm 3 is configured such that the pitch angle θ is 90 ° and the yaw angle is 0 ° when the angle adjustment amount in the connection portion with the main case 1 (that is, the arm holding portion 13) is 0 °. Yes.

  In the present embodiment, an embodiment in which the arm 3 is formed in a bow shape is adopted as an example, but a shape in which a cylinder is bent once or a plurality of times may be used as disclosed separately as a modified example. The arm 3 is arranged such that a line passing through the center of the arm 3 (hereinafter, center line) is located in the central plane.

  The flexible cable 4 is a flexible printed circuit board (FPC) formed in a belt shape. The flexible printed wiring board includes a flexible flat cable.

  The flexible cable 4 is longer than the arm 3 and is disposed so as to abut on a predetermined region of the inner surface of the arm 3. Note that the length of the portion where the flexible cable 4 abuts against the inner surface of the arm 3 can vary according to the pitch angle θ of the main case 1 with respect to the holder case 2. The length of the flexible cable 4 is set to a length at which the flexible cable 4 abuts in a predetermined region of the inner surface of the arm 3 even when the pitch angle θ is an angle at which the distance between the connectors is the longest. It shall be.

  However, the flexible cable 4 is set to a length that the flexible cable 4 does not wave even when the pitch angle θ is an angle at which the distance between the connectors is closest. The state in which the flexible cable 4 is undulated indicates a state in which the flexible cable 4 is in contact with the arm 3 at two or more places as shown in FIG. That is, the length of the flexible cable 4 is set to a length that contacts the arm 3 at one place regardless of the pitch angle θ.

  A buffer member 9 is affixed to a region where the flexible cable 4 can abut on the inner surface of the arm 3 (hereinafter referred to as a contact region). FIG. 6 shows a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a perspective view conceptually showing an attachment mode of the buffer member 9. As shown in FIGS. 6 and 7, the buffer member 9 is attached to the lower half circumference portion so as to include the contact area on the inner surface of the arm 3.

  The contact area itself may be determined by a test or the like. Further, the contact area is from the action line Ln1 of the force F1 applied to the flexible cable 4 from the first substrate 7 when the main case 1 and the arm 3 are assembled, and from the second substrate 8 when the holder case 2 and the arm 3 are assembled. You may determine based on the point (henceforth an action line intersection) Px where the action line Ln2 of the force F2 applied to the flexible cable 4 intersects. This is because the flexible cable 4 has a tendency to bend so that the action line intersection Px is a vertex in a state where the members such as the main case 1 are assembled.

  For example, as shown in FIG. 8, the contact area is an area that is within a certain distance D <b> 1 in the extending direction of the arm 3 from a point closest to the action line intersection Px (hereinafter referred to as an intersection proximity point) on the inner surface of the arm 3. do it. A force F1 applied from the first substrate 7 to the flexible cable 4 acts in a direction orthogonal to the first substrate 7, and a force F2 applied from the second substrate 8 to the flexible cable 4 is a direction orthogonal to the second substrate 8. Act on.

  The shock-absorbing member 9 only needs to have a configuration that reduces the impact at the time of collision between the flexible cable 4 and the arm 3. For example, the buffer member 9 may be realized by using an elastically deformable (in other words, soft) material such as a rubber material or a resin material formed in a sponge shape. The buffer member 9 may be attached to the inner surface of the arm 3 with an adhesive or a double-sided tape.

<Effect of embodiment>
In the above configuration, the flexible cable 4 is disposed so as to contact the buffer member 9 provided on the inner surface of the arm 3. Therefore, it is possible to reduce the possibility that the flexible cable 4 comes into contact with the inner surface of the arm 3 and generates unpleasant noise (for example, a hitting sound) due to vehicle body vibration accompanying traveling of the vehicle.

  Also, in general, when multiple types of functions are mounted on one information processing terminal, it is necessary to arrange circuits or the like according to the mounted functions on the board, which increases the board size and increases the size of the housing. There is a tendency to end up. In particular, when a plurality of types of wireless communication functions are mounted, the housing tends to be large in order to ensure isolation between antennas.

  For such a problem, according to the present embodiment, the first substrate 7 accommodated in the main case 1 and the second substrate accommodated in the holder case 2 are electronic components for realizing a plurality of types of functions. 8 can be assigned to each of them. According to such a configuration, the portable navigation 100 can be downsized. Moreover, even when a plurality of types of wireless communication functions are implemented, it is easy to ensure isolation between antennas. Therefore, said structure is suitable for size reduction of the portable navigation 100 provided with multiple types of radio | wireless communication functions.

  That is, according to the above configuration, it is possible to achieve both the downsizing of the portable navigation 100 as the vehicle information terminal and the suppression of the generation of abnormal noise caused by the vehicle body vibration.

  Further, according to the above-described embodiment, the buffer member 9 is not disposed on the entire inner surface of the arm 3, but the buffer member 9 is disposed only in a region where the flexible cable 4 can contact (in other words, in a limited manner). To do. According to such a configuration, it is possible to suppress the cost derived from attachment of the buffer member and the like.

  Furthermore, according to the configuration in which the buffer member 9 is provided only in a region where the flexible cable 4 can contact (in other words, in a limited manner), the ratio of the buffer member 9 in the internal space of the arm 3 is small. Even if the inner diameter is small (that is, thin), it is easy to apply. For example, the present invention can be applied even when the inner diameter of the arm 3 is about 10 mm to 20 mm. Moreover, according to said structure, since the state which the flexible cable 4 contact | abutted to the buffer member 9 is maintained with the elastic force which flexible cable 4 itself has, the state which the buffer member 9 and the flexible cable 4 contacted is maintained. There is no need to provide a separate member for this purpose. That is, the above effect can be achieved with a simpler configuration.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, The various modifications described below are also contained in the technical scope of this invention, and also in addition to the following However, various modifications can be made without departing from the scope of the invention.

  In addition, about the member which has the same function as the member described in the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In addition, when only a part of the configuration is mentioned, the configuration of the above-described embodiment can be applied to the other portions.

[Modification 1]
In the embodiment described above, the configuration in which the arm 3 is formed in a curved shape is adopted, but as shown in FIG. 9, it may be formed in a shape in which a straight tube is bent once. Of course, a plurality of bent portions may be provided. That is, the arm 3 may be formed in a polygonal line shape. The buffer member 9 only needs to be disposed in the contact area determined according to the shape of the arm 3.

[Modification 2]
In the above, the configuration of the portable navigation 100 on the premise that the portable navigation device 100 is used by being attached to the windshield 200 has been disclosed. As shown in FIG. 10, the portable navigation 100 may be configured to be used by being placed on the upper surface of the dashboard 400.

  FIG. 11 is a diagram illustrating an example of the configuration of the portable navigation 100 on the premise that the portable navigation system 100 is arranged and used on the dashboard 400. In the portable navigation system 100 that is assumed to be arranged and used on the dashboard 400, the holder lower surface portion 22 may be attached to the dashboard 400 with a double-sided tape or the like and fixed to the vehicle.

[Modification 3]
The configuration of the portable navigation 100 attached to the four-wheeled vehicle has been disclosed above, but the portable navigation 100 may be configured to be attached to the two-wheeled vehicle. The portable navigation system 100 for a motorcycle may be attached to a handle, for example. FIG. 12 shows the configuration of the portable navigation 100 on the premise that it is attached to the handle portion of the two-wheeled vehicle and used.

  The portable navigation system 100 for a two-wheeled vehicle may be realized by attaching the handle mounting part 500 to the holder lower surface part 22 included in the portable navigation system 100 shown in the second modification, for example. The handle attachment portion 500 may be realized by a hinge structure, for example. That is, the movable portion 510 for sandwiching the handle of the two-wheeled vehicle is connected by the fixed portion 520 and the hinge portion 530. Further, an end 511 opposite to the hinge portion 530 in the movable portion 510 is locked to the fixed portion 520 by a screw 540.

  Note that the portable navigation 100 shown in FIG. 12 may be used by being attached to the handle of a three-wheeled vehicle. The handle attachment portion 500 and the holder lower surface portion 22 may be integrally formed.

[Modification 4]
In the above, the configuration in which the portable navigation 100 is provided with three types of antennas, that is, the GNSS antenna 81, the DSRC antenna 83, and the LTE antenna 85 is disclosed. However, the portable navigation 100 does not necessarily have to include all of these antennas. . The type of antenna provided in the portable navigation 100 may be designed as appropriate. For example, the GNSS antenna 81 and the DSRC antenna 83 may be the only antennas that the portable navigation system 100 has as an antenna for the vehicle interior.

  Further, the portable navigation 100 may include an antenna other than the types described above. For example, the portable navigation system 100 may include an antenna for receiving radio broadcast waves (hereinafter referred to as a radio antenna) as a vehicle exterior antenna. The communication partner for the radio receiving antenna is a radio broadcasting station.

  Further, the portable navigation 100 may include an antenna for near field communication (NFC). Near-field communication here refers to communication using a communication method in which a communicable distance is sufficiently smaller than near field communication. For example, near-field communication refers to communication in which the communicable distance is about several centimeters to several tens of centimeters. That is, near field communication is communication based on standards such as ISO / IEC 14443 and ISO / IEC 18092.

  The near-field communication antenna may be provided on the first substrate 7 or may be provided on the second substrate 8. Further, it may be arranged on each of the first substrate 7 and the second substrate 8.

[Modification 5]
In the above description, the configuration in which the buffer member 9 is disposed only in a region where the flexible cable 4 contacts (in other words, in a limited manner) is disclosed, but the configuration is not limited thereto. The buffer member 9 may be disposed on the entire inner surface of the arm 3.

[Modification 6]
The example in which the vehicle information terminal according to the present invention is applied to a portable navigation device has been disclosed above, but the present invention is not limited to this. The vehicle information terminal may be applied to an information processing terminal that does not have a navigation function. The vehicle information terminal can be applied to various information processing terminals such as a car audio or a drive recorder having a communication function with an external device. The information processing terminal here refers to a communication terminal that displays information based on data received from outside on a display.

100 portable navigation, 1 main case (first housing), 2 holder case (second housing), 3 arm, 4 flexible cable, 5 display, 6 touch panel, 7 first substrate, 8 second substrate, 9 cushioning member , 14 Lead hole (first hole), 24 Lead hole (second hole)

Claims (3)

A vehicle information terminal comprising a display (5) for displaying information for an occupant seated in a driver seat of a vehicle,
A first substrate (7) on which a circuit providing a predetermined first function is mounted, and a first housing (1) containing the display;
A second housing (2) containing a second substrate (8) on which a circuit providing a second function different from the first function is mounted;
An arm (3) for connecting the first housing and the second housing and supporting the posture of the first housing with respect to the second housing;
A cable (4) for connecting the first substrate and the second substrate;
The first housing includes a first hole (14) for passing the cable,
The second housing includes a second hole (24) for passing the cable,
The arm includes a hollow portion that communicates the first hole and the second hole;
The cable is arranged so as to pass through the hollow portion as an inner space of the arm and abut in a predetermined abutting region provided in an inner surface portion of the arm,
A vehicular information terminal, wherein a buffer member (9) that is elastically deformed is attached to the contact area. In claim 1,
The vehicle information terminal, wherein the buffer member is not disposed in a portion other than the contact area in the inner surface of the arm. In claim 1 or 2,
The first board includes a first board side connection point to which the cable is connected at a position facing the first hole,
The second board includes a second board side connection point to which the cable is connected at a position facing the second hole,
The first hole portion, the second substrate side connection point, and the second hole portion are all arranged in a central plane that is a plane that passes through the first substrate side connection point and is orthogonal to the horizontal direction of the display. Has been
The arm is formed in a bow shape or a broken line shape that communicates the first hole portion and the second hole portion,
The contact area includes a straight line (Ln1) perpendicular to the first substrate through the first substrate side connection point and the second substrate through the second substrate side connection point on the inner surface of the arm. An information terminal for a vehicle, characterized in that the vehicle information terminal is set so as to include an intersection proximity point that is the closest point from the intersection with a straight line (Ln2) perpendicular to.

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