JP6452867B2 - In-vehicle device connection adapter - Google Patents

Description

  The present invention relates to an in-vehicle device connection adapter for connecting to a connector that outputs vehicle information provided in a vehicle.

  The vehicle includes various electronic control units such as engine control, and the electronic control units are connected to each other through a multiple transmission path (vehicle LAN) so that various vehicle information can be transmitted and received. In recent vehicles, OBD-II (II is the Roman numeral “2”) for providing this vehicle information to an external device (such as a portable failure diagnosis device), and “OBD-II” is hereinafter referred to as “OBD2”. Some have a connector.

  Usually, the failure diagnosis apparatus is connected to the OBD2 connector via a connection cable. That is, an adapter to be attached to the OBD2 connector is attached to the tip of the connection cable connected to the failure diagnosis apparatus. In use, the fault diagnosis device acquires various types of vehicle information and performs a predetermined diagnosis process by connecting an adapter attached to the connection cable to the OBD2 connector on the vehicle side. This type of failure diagnosis device and adapter are disclosed in, for example, Patent Document 1 and the like.

JP 2004-359127 A

  There are various types of vehicle information output from the OBD2 connector, such as vehicle speed, injection injection time, intake air amount, etc., and there is useful information that can be used in addition to failure diagnosis. By taking this vehicle information into a navigation device, fuel consumption meter, drive recorder, GPS logger, and other various in-vehicle devices, the performance and functions of the in-vehicle devices can be improved.

  As indicated by reference numeral 5 in FIG. 1 of Patent Document 1, one end surface side (front surface for convenience) of the rectangular case body is opened to become a connector portion connected to the OBD2 connector of the vehicle. A cable is connected to the back side, and the cable is arranged to extend in a direction orthogonal to the back side.

  The OBD2 connector of the vehicle is set at various positions such as the right side, the left side, and the center near the feet on the driver's seat side, and at various positions such as the steering right side panel, and is in a relatively deep place. When temporarily connecting to the OBD2 connector of the vehicle and using it like a failure diagnosis device, the adapter is connected to the OBD2 connector in such a deep place and connected to the back of the adapter. By pulling out the cable toward the driver's seat, there is no problem because the failure diagnosis device can be brought into a wide space in the vehicle. However, as described above, when considering a usage pattern in which vehicle information output from the OBD2 connector is taken into an in-vehicle device, the conventional structure shown in Patent Document 1 and the like causes the following problems.

  That is, since many in-vehicle devices are used during operation, the in-vehicle devices are operated in a state where the in-vehicle device and the OBD2 connector are coupled by the connection cable. As described above, since the OBD2 connector is disposed in the vicinity of the underbody of the driver's seat, there is a problem that it is necessary to prevent the driver's leg from being caught during driving. In addition, the connection cable that extends straight from the back surface of the adapter mounted in the recessed portion on the front side of the driver's seat has a problem that a preferable wiring layout cannot be easily taken.

  In addition, the installation position of the OBD2 connector varies depending on the vehicle type, and the in-vehicle devices linked to the OBD2 connector also have different installation positions in the vehicle compartment depending on the model, user preference, and the like. As a result, the relative installation position relationship between the OBD2 connector (adapter) and the in-vehicle device also varies. There is also a problem that it is desirable to easily connect the connection cable to such various patterns.

  In order to achieve the above-described object, an on-vehicle equipment connection adapter according to the present invention includes (1) a case main body, a connection terminal portion provided on one surface of the case main body for mounting on a vehicle, and the one surface. A connection cable drawn out from the opposite surface, and a rotation mechanism that allows the connection cable to rotate forward and backward within an angle range set in a plane parallel to the opposite surface of the case body; and It was built in the case main body and comprised with the circuit part which electrically connects the said connection terminal part and the said connection cable.

  One surface of the case body is the front surface in the embodiment, and the opposite surface corresponds to the back surface. The connection terminal portion is attached to the vehicle, and is for connecting to the OBD2 connector in the embodiment. The connection cable is linked to the in-vehicle device directly or via a predetermined cable. The in-vehicle device receives power supply from the vehicle or acquires vehicle information through the in-vehicle device connection adapter. The connection cable is drawn out from the surface opposite to the connection terminal portion, and can be rotated in a plane parallel to the opposite surface. Therefore, when the connection terminal portion is connected to the connector provided in the vehicle, it is not pulled out in the same direction as the insertion direction as in the conventional case, but is pulled out in the direction intersecting with the insertion direction. The wiring protrudes to the front side toward the side, etc., and does not get in the way, and does not get caught on the driver's foot during driving. In particular, the connection terminal portion is a failure diagnosis connector, and the connection cable exhibits an excellent effect when it is configured to supply power or a signal to the in-vehicle device during operation of the vehicle. Further, since the connection cable can be rotated in a plane parallel to the opposite surface, the connection cable is appropriately positioned based on the relative positional relationship between the in-vehicle device connection adapter (connecting terminal portion) and the in-vehicle device. Can be pulled out. In addition, since the connection cable is rotated forward and backward within a predetermined rotation angle range, the connection cable is not cut by rotating many times in the same direction.

  (2) The surface of the case main body may be provided with a stopper member that contacts the side surface of the rotating connection bushing and prevents the rotation of the connection bushing further, thereby defining the rotation angle of the connection bushing. The rotation angle can be defined with a simple configuration.

  (3) The rotation mechanism may include a holding mechanism that holds a connection cable pulling direction at a desired position, and the holding mechanism may be fixed at least in a direction parallel to the longitudinal direction of the connection terminal portion. By fixing, the wiring does not sway and move during use, so there is no risk of people getting caught.

  (4) The rotating mechanism includes a connection bush that is rotatably attached to the case body, and the connection cable is guided into the case body through a through hole provided in the connection bush. In the holding mechanism, a protrusion provided on the surface of the case main body comes into contact with the side surface of the connection bush to restrict the rotation of the connection bush, and a certain force is applied in the rotation direction of the connection bush. In this case, it is preferable that the connection bush can be rotated over the protrusion. If it does in this way, fixation of the angle (drawing direction of a connection cable) of a connection bush and permission of rotation can be performed with simple composition.

  (5) The holding mechanism may include a mechanism that holds the contact bush in contact with the connection bush at an intermediate position where the connection bush moves over the protrusion. In the embodiment, the intermediate position is an arrangement in which the connection cable is pulled out in the vertical direction (upward). By holding in more stages, appropriate wiring can be handled.

  (6) The case body may be provided with a fuse insertion portion for attaching a flat fuse. When the fuse is provided, it can be mounted in the middle of the connection cable. However, since the connection cable is usually fixed at an appropriate position in the vehicle interior, the flat fuse is mounted on the case body as in the present invention. This makes it easy to replace the fuse.

  (7) On the premise of the invention of the above (6), it is preferable that a mounting port for the fuse insertion portion is provided on the opposite surface of the case body. By doing in this way, it is possible to easily replace the flat fuse with the in-vehicle device connection adapter mounted on the vehicle. In addition, for example, the area of the internal substrate can be made larger than when the fuse insertion portion is provided on the side surface side. In particular, the following (8) is preferable.

  (8) On the premise of the invention of (7) above, a first substrate to which the connection terminal portion is connected and a second substrate that is arranged so as to overlap the first substrate and is connected to the first substrate. The second board may be arranged so as to avoid the flat fuse insertion part, and a connector of the flat fuse insertion part may be connected to the first board. If it does in this way, each component can be efficiently arranged in the space of a small case body. Further, since the power supply line from the vehicle side is led to the circuit in the case body via the connection terminal portion, a flat fuse can be disposed at a location near the power supply line.

  (9) The circuit unit may include at least one of a power supply circuit and a signal processing circuit. Only the power supply circuit may be used for power supply, or may include both a power supply circuit and a signal processing circuit. In addition, the power supply is supplied from an internal battery of the in-vehicle device or the like, and it is not hindered to mount only the signal processing circuit.

  (10) A connection portion for connecting to an external device may be provided on the opposite surface of the case body. If it does in this way, another vehicle equipment can be connected and expandability and versatility will become high.

  (11) The case body may be provided with an opening through which the switch operation unit is exposed, and when there is no switch operation unit, the opening may be covered with a seal. If it does in this way, it can be combined with the type with and without a switch operation part, and also when there is no switch operation part, it looks beautiful by covering with a seal, and it can control that dust enters inside. This type of in-vehicle equipment connection adapter is attached with a seal such as a rating nameplate, so by providing this opening on the surface where the rating nameplate is to be attached, if the type does not have a switch operation part, the rating nameplate seal Can be hidden.

  The connection cable can be pulled out in a desired direction, and a preferable wiring layout based on the relative positional relationship between the in-vehicle device connection adapter and the in-vehicle device can be easily obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a preferred embodiment of an in-vehicle device connection adapter according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a preferred embodiment of an in-vehicle device connection adapter according to the present invention. It is a disassembled perspective view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a disassembled perspective view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a disassembled perspective view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a top view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is the top view which abbreviate | omitted the upper case which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a preferred embodiment of an in-vehicle device connection adapter according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a preferred embodiment of an in-vehicle device connection adapter according to the present invention. It is the side view which abbreviate | omitted the upper case which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a rear view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a bottom view which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a perspective view which shows the connection relation of the upper case which shows suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention, a connection cable, and a connection bush. It is a perspective view which shows the connection relation of the upper case which shows suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention, a connection cable, and a connection bush. It is a perspective view which shows the connection relation of the circuit part which shows suitable embodiment of the adapter for vehicle equipment connection concerning this invention, a connection cable, a connection bush, and a connection terminal part. It is a perspective view which shows the connection relation of the circuit part which shows suitable one Embodiment of the adapter for vehicle equipment connection which concerns on this invention, and a connection terminal part. It is a disassembled plan view which shows the connection relation of the upper case which shows suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention, a connection cable, and a connection bush. It is a disassembled rear view which shows the connection relation of the upper case which shows suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention, a connection cable, and a connection bush. It is the perspective view which abbreviate | omitted the upper case which shows other suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is the top view which abbreviate | omitted the upper case which shows other suitable embodiment of the adapter for vehicle equipment connection which concerns on this invention. It is a figure explaining a use condition. It is a figure explaining a use condition. It is a figure explaining a use condition. It is a figure explaining a use condition. It is a figure explaining a use condition. It is a figure explaining a use condition. It is a figure explaining a use condition.

  As shown in the figure, the adapter 1 for in-vehicle equipment connection includes a rectangular case body 2, a connection terminal portion 13 attached to the front side of the case body 2, and a connection cable drawn out from the back side of the case body 2. 15, a connection bush 14 for connecting the connection cable 15 in a plane parallel to the back surface of the case body 2 within an angle range of 180 degrees, and a circuit portion 16 built in the case body 2. ing. Although not shown, the end of the connection cable 15 on the in-vehicle device side may be directly connected to the in-vehicle device, or provided with a connector, at the end of the connection cable drawn out from the main body of the in-vehicle device or the in-vehicle device. You may make it attach to the provided connector so that attachment or detachment is possible.

  The case main body 2 connects the upper case 10 and the lower case 11 which are divided into two parts in the vertical direction, with their front end edges butting each other. In the present embodiment, the lower case 11 is a shallow, dish-like case, and the upper case 10 is opened largely downward and forward, and further has a higher height (thickness) than the lower case 11. Yes. The upper case 10 and the lower case 11 are preferably made of a material called hard resin which is made of ABS or other resin and has a hardness of 110 degrees or more.

  The front wall 10a of the upper case 10 is formed with a concave notch 10a ′ that is largely notched (substantially trapezoidal) from the lower end side. Moreover, the support | pillar 10c extended below is integrally formed in the front wall 10a side of the lower surface of the top plate 10b. The length of the column 10c is longer than the height of the wall portion of the upper case 10, and the lower end of the column 10c projects downward from the lower end of the front wall 10a. A hole 10c ′ is formed in the lower end of the support column 10c in the axial direction to form a screw hole.

  At the center of the upper end of the concave notch 10a ′ provided on the front wall 10a of the upper case 10, a concave portion 10a ″ cut further upward is formed. Further, a band plate shape on the front wall 10a side of the lower surface of the top plate 10b. The protruding piece 10d and the front wall 10a are arranged at a predetermined distance, and a predetermined space is formed between the both 10d and 10a.

  The rear wall 10e of the upper case 10 is formed with a vertically long rectangular window hole 10e 'along one side wall (left side wall) 10f and cut upward from the lower end along the other side wall (right side wall) 10g. An elongated slot-shaped notch 10e ″ is formed. The window hole 10e ′ is an opening for arranging a connection connector 21 for connecting an external device. When the USB or other connection connector 21 is provided, By disposing the terminal portion in the window hole 10e ′, the terminal portion is exposed to the outside through the window hole 10e ′ so that it can be connected to an external device. When the window 21 is not provided, the window hole 10e 'is closed by attaching a blindfold member 17. Further, the blindfold member 17 can be made of a plate material made of resin or the like, or various types of seals. Do The upper case 10 can be used in common with or without a connector connector for connecting to an external device. The elongated concave cutout 10 ″ is a part of a mounting opening for attaching and detaching the flat fuse 18. Configure.

  Furthermore, the base 10h which protrudes toward back is provided in the lower center part of the rear wall 10e. The pedestal 10h is provided with a semicircular recess 10h ′ in the center of the lower end, and further provided with two protrusions 10h ″ above the surface of the pedestal 10h. A claw piece 10i is provided so as to protrude downward.

  On the other hand, the front wall 11a of the lower case 11 is formed with a concave cutout portion 11a ′ cut out in a concave shape from the upper end side. When the upper case 10 and the lower case 11 are joined, the concave notches 10a ′ and 11a ′ are integrated to form the front opening of the case body 2.

  Further, a hole 11c is formed on the upper surface of the bottom plate 11b of the lower case 11 on the front wall 11a side at a position facing the support column 10c. Furthermore, a strip-like protrusion 11d is formed on the front wall 11a side of the upper surface of the bottom plate 11b of the lower case 11. The protruding piece 11d and the front wall 11a are arranged at a predetermined distance, and a predetermined space is formed between the both 11d and 11a. The distance between the projecting piece 11d and the front wall 11a is equal to the distance between the projecting piece 10d of the upper case 10 and the front wall 10a. Furthermore, a small window hole 11b 'is formed in the rear center of the bottom plate 11b.

  The rear wall 11e of the lower case 11 is formed with a concave notch 11e ″ cut downward from the upper end along the right side wall 11g. The width of the concave notch 11e ″ is equal to the rear wall of the upper case 10. When the upper case 10 and the lower case 11 are joined to each other, the elongated concave notch 10e "and the concave notch 11e" are formed at the same position as the width of the elongated concave notch 10e "formed in 10e. The two 10e ″ and 11e ″ are integrated to form an elongated rectangular opening extending vertically. The opening formed by the elongated recessed notch 10e ″ and the recessed notch 11e ″. The portion constitutes a mounting port for the flat fuse 18. In this way, the mounting port for the flat fuse 18 is provided on the rear wall 10e side which is the back surface of the case body 2, so that the in-vehicle device connection adapter 1 is mounted on the vehicle. Attached to It is possible to easily replace the flat fuse 18. Also, for example, it is possible to increase the area of the internal substrate as compared with the case where the fuse insertion portion is provided on the side surface side. In the state, the flat fuse 18 is exposed from the mounting opening.

  Furthermore, the base 11h which protrudes toward back is provided in the upper center part of the rear wall 11e. The pedestal 11h is provided with a semicircular recess 11h ′ at the center of the upper end, and further provided with a plate-like stopper portion 11h ″ protruding rearward below the surface (outer surface) of the pedestal 11h. The radius of the recess 11h ′. Is equal to the recess 10h 'provided in the base 10h of the upper case 10, and when the upper case 10 and the lower case 11 are joined, the recesses 10h' and 11h 'are combined to form a circular hole. Further, at a predetermined position on the inner surface of the rear wall 11e of the lower case 11 (the front side of the case body 2), a ridge that fits with a claw piece 10i provided on the inner surface side of the rear wall 10e of the upper case 10. 11i.

  When the lower end of the upper case 10 and the upper end of the lower case 11 are abutted, the lower end of the support column 10 c comes into contact with the periphery of the hole 11 c of the lower case 11. Further, at this time, the claw piece 10i of the upper case 10 moves over the protruding ridge 11i of the lower case and moves downward, so that both 10i and 11i are linked and positioned, and on the back side of the case body 2, Upper case 10 and lower case 11 are temporarily fixed. Therefore, by inserting the screw 19 from the hole 11c and tightening the screw 19, the screw 19 is fastened to the hole 10c '(screw hole) provided at the lower end of the column 10c, and the upper case 10 and the lower case 11 are connected. Connected and fixed.

  A small window hole 11b ′ provided in the bottom plate 11b of the lower case 11 is an opening for a switch. That is, when the built-in circuit unit 16 includes a setting switching switch 25 (slide switch or the like), the circuit unit 16 is set by setting the switch 25 to a position facing the small window hole 11b ′. When mounted on the case body 2, the switch 25 is exposed to the outside through the small window hole 11 b ′ (see FIG. 12 and the like). Therefore, the user can switch various settings by operating the exposed switch 25.

  Moreover, the rating nameplate seal | sticker 20 is affixed on the lower surface (outer surface) of the baseplate 11b. When the above switch is mounted, the portion facing the small window hole 11b ′ of the rating nameplate seal 20 serves as an opening 20a so that the switch 25 is exposed. In the case of a type that does not have a switch exposed from the small window hole 11b ', the rated nameplate seal to be attached to the bottom plate 11b is not provided with an opening so that the small window hole 11b' can be formed with the rated nameplate seal. Can be obscured. Therefore, the lower case 11 can be used for both the “with switch” type and the “without switch” type by changing the attached rating nameplate seal.

  The connection terminal portion 13 includes a frame body 13b provided so as to protrude to the front side of the rectangular base 13a, a flange portion 13c provided so as to protrude to the outer periphery on the base 13a side of the frame body 13b, and a base 13a. Terminal pins 13d provided so as to penetrate in the front-rear direction. The connection terminal portion 13 is also formed of ABS or other resin, like the case body 2.

  The frame 13b has an inner shape with a substantially trapezoidal cross section that matches the outer shape of the OBD2 connector of the vehicle, and a band plate 13e having a claw portion 13e 'at the tip is formed at the center of the upper side of the frame 13b. Slits are provided on both sides of the band plate 13e, and the upper side of the frame 13b is divided to be elastically deformable. Since the band plate 13e has elasticity, when the connection terminal portion 13 (frame body 13b) is attached to an OBD2 connector of a vehicle (not shown), the band plate 13e is elastically deformed (the tip moves upward) and the OBD2 connector. The claw portion 13e 'and the projection are engaged with each other, and the connection terminal portion 13 is connected to the OBD2 connector, so that it is prevented from being carelessly detached. Further, along with this mounting, the tip of the terminal pin 13d is inserted into the OBD2 connector and electrically connected to the OBD2 connector. The OBD2 connector outputs vehicle information, but power is also supplied from the vehicle. Therefore, in the present embodiment, the terminal pin 13d is arranged to be connected to each of a signal line for outputting vehicle information in the OBD2 connector and a power supply line.

  On the other hand, the attachment of the connection terminal portion 13 to the case body 2 is fixed by sandwiching the connection terminal portion 13 from above and below between the upper case 10 and the lower case 11. At this time, the flange portion 13c enters the gap between the protruding piece 10d of the upper case 10 and the front wall 11a, and the gap between the protruding piece 11d of the lower case 11 and the front wall 11a, and is positioned and fixed.

  In the present embodiment, the circuit unit 16 is configured by arranging two printed wiring boards 16a and 16b so as to overlap in the front-rear direction. The first printed wiring board 16a on the connection terminal portion 13 side is directly connected to terminal pins 13d, and a power supply circuit and a part of a processing circuit for acquiring vehicle information are installed. Further, the first printed wiring board 16a is positioned by being held by the support pillar portions 13f that are erected and arranged at the four corners of the base 13a. The second printed wiring board 16b is provided with a part of a processing circuit for acquiring vehicle information. The first printed wiring board 16a and the second printed wiring board 16b are electrically and mechanically connected by connection pins 16c. That is, the circuits formed on both printed wiring boards 16a and 16b are made conductive by the connection pins 16c. Further, by providing a plurality of connection pins 16c on different sides (a pair of long sides in the present embodiment), the second printed wiring board 16b is supported and integrated on the first printed wiring board 16a. The processing circuit may acquire information necessary for the in-vehicle device by inquiring the vehicle side, or a specific control / arithmetic processing such as a signal line (extension cable) connecting the in-vehicle device and the OBD2 connector of the vehicle. Data (transmission frame) or the like may be communicated in a through state without performing the above. In the latter case, simple processing for performing normal communication such as waveform shaping and noise removal may be performed.

  Further, the connection connector portion 21 that serves as an interface with the outside is mounted on the second printed wiring board 16b, and the fuse insertion portion 24 for mounting the flat fuse 18 is mounted on the first printed wiring board 16a. Yes. The fuse insertion portion 24 includes a connector for inserting the two terminals of the flat fuse 18 on the back side of the box-shaped main body. The other end side of the connector, that is, the outer side of the main body is the first as shown in FIG. The printed wiring board 16a is soldered and fixed. One pin 24a on the other end side is electrically connected to a terminal supplied with power from the vehicle battery among the terminal pins 13d by a wiring pattern on the first printed wiring board 16a. The other pin 24b on the other end side is connected to a power supply circuit provided on the first printed wiring board 16a, and supplies power from the power supply circuit to each part on the printed wiring boards 16a and 16b and the power supply line of the connection cable 15. ing. If it does in this way, each component can be efficiently arranged in the space of small case body 10. Further, since the power supply line from the vehicle side is led to the circuit in the case body 10 via the connection terminal portion 13, the flat fuse 18 can be arranged at a location close to the power supply line, and each circuit element Can be properly protected.

  Furthermore, in the present embodiment, the connection cable 15 has four cores (not shown) of two (+, ground) as power lines and two (for transmission and reception) as signal lines. In addition, two signal lines are used for transmission and reception, respectively, as twisted lines, and the total number of signal lines can be 6 cores, and other forms are also possible. The outer periphery of the four cores drawn to the outside of the case body 2 is covered with the protective tube 15a and protected so as not to be disconnected. The tip of the four cores passes through the connection bush 14 and is guided into the case body 2 and connected to the connector portion 22. The connector portion 22 connects terminal pins (not shown) to four terminal hole portions 16b ′ (see FIG. 16) formed at predetermined positions on the second printed wiring board 16b. As a result, the processing circuit / power supply circuit provided in the circuit unit 16 is electrically connected to the four cores. Further, in the case body 2, the four cores are exposed without being covered by the protective tube 15a and the connection bush 14, and thus can be easily bent.

  The connection bush 14 includes a bush main body 14a formed of a substantially rectangular block body, and a connection cable 15 (protective tube) is connected to one surface 14a '. Further, a surface adjacent to the surface 14a 'to which the connection cable 15 (protective tube) is connected becomes an attachment surface 14a "for the case body 2. A cylindrical neck portion 14c is formed on the attachment surface 14a". Further, a disc-shaped flange portion 14d protruding outward is formed on the tip side of the neck portion 14c. The outer diameter of the neck portion 14c is equal to or slightly smaller than the diameter of the recess portion 10h 'provided in the base 10h of the upper case 10 and the recess portion 11h' provided in the base 11h of the lower case 11, and the length of the neck portion 14c is 10 or the thickness of the base 10h of the lower case 11 is set to be equal to or slightly longer. Accordingly, the neck portion 14c is sandwiched between the upper case 10 (base 10h) and the lower case 11 (base 11h) from above and below, so that the neck portion 14c fits in a circular opening formed by the recesses 10h ′ and 11h ′. It can be rotated.

  Further, an L-shaped through hole 14e extending from one surface 14a 'for attaching the connection cable 15 to the attachment surface 14a "and eventually the neck portion 10c is formed in the bushing body 14a, and both ends of the through hole 10e are connected to the respective surfaces 14a. ′, 14a ″. The four cores constituting the connection cable 15 are inserted into the through hole 10e, and the tip is drawn out from the neck 10c side.

  Further, the bushing body 14a is formed of an elongated rectangular block body, and a lower step portion 14b which is lowered by one step is formed on the surface 14a 'side of the mounting surface 14a' '. The depth of the lower step portion 14b is a protrusion. It is almost equal to the height of 10h ″.

  As a result, as shown in FIG. 1 and the like, the connection cable 15 also extends in the horizontal direction (here, the right side wall 10g side) in a state where the elongated bush body 14a is tilted in a direction parallel to the longitudinal direction of the case body 2. Become posture. At this time, the side wall of the bush main body 14a contacts the protrusion 10h ″ provided on the base 10h to prevent the bush main body 14a from rotating in a vertical plane. The rotation is blocked by the stopper member 11h ″. Therefore, the posture shown in the figure is maintained.

  On the other hand, when the bushing body 14a is urged to rotate in a vertical plane to stand, when the urging force exceeds a certain level, the bushing body 14a (mounting surface 14a ") rides on the protrusion 10h" and starts rotating. Then, when rotated 180 degrees, the bushing body 14a falls in a direction parallel to the longitudinal direction of the case body 2 in the opposite direction to the illustrated posture. In this state, the connection cable 15 also extends in the horizontal direction (here, the left side wall 10f side). At this time, the side wall of the bush main body 14a contacts the protrusion 10h ″ provided on the base 10h to prevent the bush main body 14a from rotating in a vertical plane. The rotation is blocked by the stopper member 11h ″. Therefore, the posture which fell in the opposite direction is maintained.

  That is, it is possible to take two pull-out directions such as a posture in which the connection cable 15 is pulled out to the left side wall 10f side of the case body 2 (upper case 10) and a posture to be pulled out to the right side wall 10h side. In addition, by providing the stopper member 11h ″, the connection bush 14 rotates in the forward and reverse directions within a rotation angle range of 180 degrees, and the communication line that configures the connection cable 15 by rotating many times in the same direction. And the power line is prevented from being disconnected.

  Further, as shown in FIG. 1 and the like, when the connection bush 14 is rotated 90 degrees from the horizontal state and the connection bush 14 is erected in the vertical direction, the connection cable 15 extends above the case body 2. It becomes. At this time, the protrusion 10h ″ enters into the lower step portion 10b of the bush main body 14a and holds its posture lightly. That is, in this embodiment, the holding posture of the connection bush 14 (the direction in which the connection cable 15 is pulled out) is as described above. In addition to the two horizontal directions on the left and right, it can also be held in an upward-facing posture, for a total of three directions.

  The connection bush 14 is made of a material that is softer than hard plastic. In the present embodiment, one having a hardness of 97 ± 3 degrees is used. The case body 2 is formed of a hard resin (plastic) having a hardness of 110 degrees or more. When the connection bushing 14 is rotated, the bushing body 14a rides on the protrusion 10h ″. However, if the connection bushing 14 is made of a material softer than the case body 2 (protrusion 10h ″), the protrusions may be worn or damaged. To prevent it. Then, by making the connection bush 14 hard to some extent, when the connection bush 14 is urged to rotate, the connection bush 14 endures overcoming the protrusion 10h ″ until a force larger than a certain level is applied. This is preferable because it allows you to get a click feeling and intuitively understand that it has been rotated or fixed.If the hardness of the connection bush 14 is up to about 90 degrees, a relatively preferable click feeling can be obtained. When comparing 90 degrees with 97 ± 3 degrees of this embodiment, of course, this embodiment is more preferable.

  On the other hand, if the hardness is less than 90 degrees, the bushing body 14a can be elastically deformed and get over the protrusion 10h ″ even with a relatively small force, and the click feeling is not felt so much. However, in the above three postures. Since it can hold | maintain, when it is not necessary to obtain a click feeling, it does not prevent comprising the connection bush 14 with the soft material with such a small hardness.

  As shown in FIGS. 19 and 20, the present invention may be configured by a single printed wiring board 16 ′ as the circuit portion 16 built in the case body 2. For example, when only the power supply is provided as the in-vehicle device connection adapter 1, the printed wiring board 16 'can be composed of only one power supply circuit and the circuit configuration can be reduced.

When the power source of the in-vehicle device is taken from the vehicle, it has been conventionally easy to connect to the cigar socket. However, some recent vehicles do not have cigar sockets as standard equipment, and there are cases where cigar sockets are insufficient when a plurality of in-vehicle devices are mounted. In such cases, power can be supplied in various ways, such as directly connected to the vehicle battery or using a fuse box, but all of them require a certain amount of knowledge and technology to connect and cannot be easily performed by the user. . In such a case, simply by mounting the in-vehicle device connection adapter 1 to the OBD2 connector of the vehicle, it is possible to easily supply power to the in-vehicle device. Furthermore, once the in-vehicle device connection adapter 1 is attached to the OBD2 connector, the OBD2 connector is in a recessed place, and the in-vehicle device connection adapter does not inadvertently leave the OBD2 connector during operation, so that the in-vehicle device can be securely connected. There is also a merit that power can be supplied.

  FIG. 21 and subsequent figures show an example of how the in-vehicle device connection adapter 1 is used. In this example, the in-vehicle device 30 is a GPS logger that records the operation trajectory (date / time / location / vehicle speed) of the vehicle using GPS. The in-vehicle device 30 has a predetermined circuit / device built in a flat main body case. A connection cable 31 is drawn out from the side surface of the case. As shown in FIG. 23, a female connector 32 is connected to the tip of the connection cable 31. On the other hand, a male die 27 is connected to the end of the connection cable 15 of the in-vehicle device connection adapter 1. The in-vehicle device connection adapter 1 and the in-vehicle device 30 are connected by connecting the female connector 32 and the male connector 27.

FIG. 24A shows an example of the installation position of the OBD2 connector, and FIG. 24B shows a front view of the OBD2 connector. As shown in FIG. 24 (a), the installation position varies depending on the vehicle type. For example, (1) the side of the accelerator pedal, (2) the right side of the driver's seat, (3) the center of the driver's seat, (4) the driver's seat Left side of foot, (5) Right side of center console, (6) Right side of foot of passenger seat, (7) Back side of steering panel, (8) Left side of foot of passenger seat, (9) Left side of center console, (10) Bottom of center console and so on.

  On the other hand, FIGS. 25 to 27 show an example of the mounting state of the in-vehicle device 30. As shown in FIG. 25A, first, a first surface fastener (for example, male type) 35 is attached to the back surface of the in-vehicle device 30. Further, as shown in FIG. 25 (b), a second hook-and-loop fastener (for example, female type) 36 that is paired with the first hook-and-loop fastener 35 is attached to the installation position of the dashboard 37. And as shown in FIG.25 (c), the vehicle equipment 30 can be fixed to the desired position of a dashboard by bonding the double-sided fasteners 35 and 36 together. In the figure, the longitudinal direction of the in-vehicle device 30 faces the front in the traveling direction, and the power cable 31 is pulled out to the right.

  And as shown in FIG. 26, it may arrange | position so that all of the four surfaces of the rectangular-shaped vehicle equipment 30 may go to the advancing direction. Then, as is apparent from the figure, the connection cable 31 is pulled out in four directions.

  Furthermore, as shown in FIG. Here, as shown in FIG. 27A, the first surface fastener 35 is pasted on the back surface of the in-vehicle device 30, and as shown in FIG. A hook-and-loop fastener 36 is attached. Then, the in-vehicle device 30 can be fixed to a desired position of the room mirror 38 by bonding the double-sided fasteners 35 and 36 (FIG. 27 (c)).

  Thus, there are many installation positions of the in-vehicle device 30 and postures at the time of installation, and there are also many installation positions of the OBD2 connector as shown in FIG. Relative positional relationships vary widely. Furthermore, the connection cables 15 and 31 cover a panel, an inner wall surface, and the like in the vehicle interior, and the connection cables are fixed with a cord clip or the like at an appropriate position so as not to obstruct driving. At this time, the orientation of the case body 2 of the in-vehicle device connection adapter 1 is uniquely specified by the position of the OBD2 connector. However, the direction of the connection cable 15 with respect to the case body 2 can be fixed by switching between three directions. The connection cable 15 can be pulled out in an appropriate direction in relation to the installation position and orientation of the device and the positional relationship of the in-vehicle device connection adapter 1.

  Further, if the connection cable 15 is pulled out as shown in FIG. 1 or the like, the connection cable 15 overlaps the flat fuse 18. Therefore, when the flat fuse 18 is cut and replaced, the flat cable 18 cannot be pulled out because the connection cable 15 becomes an obstacle. In such a case, if the connection bush 14 is rotated 90 degrees, the connection cable 15 is removed from the direction in which the flat fuse 18 is pulled out, and the connection bush 14 is maintained in its posture by being rotated 90 degrees. 18 can be easily replaced.

  Further, the fuse is not limited to the one mounted on the case body 2 as the flat fuse 18 as in the present embodiment, but can be incorporated in the middle of the connection cable. However, in the case of the connection cable 15 of the in-vehicle device connection adapter 1 as in the present invention, the connection cable is attached using a cord clip or the like along the wall surface in the vehicle interior as described above. Therefore, when a fuse is mounted in the middle of the connection cable, it is necessary to remove the connection cable from the cord clip, and complicated processing such as rewiring after the fuse replacement is required. For this reason, it is preferable to incorporate it into the case body 2 as in this embodiment because the replacement can be easily performed.

DESCRIPTION OF SYMBOLS 1 Adapter for vehicle equipment connection Case body 10 Upper case 10h "Projection 11 Lower case 11h" Stopper part 13 Connection terminal part 14 Connection bush 15 Connection cable 16 Circuit part 17 Blindfold member 18 Flat fuse 21 Connection connector part 22 Connector part 24 Fuse insertion part 25 switch

Claims (2)

  A connection terminal portion for connecting to a connector for outputting vehicle information provided in the vehicle;
  A case body provided with the connection terminal portion on one surface side;
  A substrate mounted in the case body;
  A signal processing circuit for performing signal processing for obtaining the vehicle information provided on the substrate;
  A connection cable for outputting information output from the signal processing circuit;
  The substrate includes at least a first substrate to which the connection terminal portion is connected, and a second substrate disposed to overlap the first substrate,
  The first substrate is directly connected to the terminal pins provided on the connection terminal portion, and the circuit provided on the first substrate and the terminal pins are electrically connected,
  Connecting one end of each connection pin to a different side of the first substrate;
  Connecting the second substrate to the other end of the connection pin to connect the first substrate and the second substrate;
  The on-vehicle equipment connection adapter, wherein the circuit provided on the first substrate and the circuit provided on the second substrate are electrically connected via the connection pins.   The in-vehicle device connection adapter according to claim 1, wherein the connection pin includes a plurality of connection pins.

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