JP4778928B2 - Distributor connecting structure, distributor and connecting member - Google Patents

Description

  The present invention realizes a distributor connecting structure for distributing an electric signal to a larger number of devices by connecting a plurality of distributors that distribute input electric signals to a plurality of devices, and the distributor connecting structure. The present invention relates to a distributor and a connecting member.

  2. Description of the Related Art Conventionally, a distributor that distributes electrical signals has been used to enable an electrical signal output from one electrical device to be input to a plurality of other electrical devices. FIG. 11 is a schematic perspective view showing a configuration example of a conventional distributor. In the conventional distributor 101 shown in the figure, a cylindrical input terminal 103 protrudes from one surface of a casing 102 having a substantially rectangular parallelepiped shape, and two cylindrical output terminals 104 and 105 protrude from the opposite surface. The configuration is made. By connecting one electrical device that outputs an electrical signal and the input terminal 103 of the distributor 101 with a cable, and connecting the output terminals 104 and 105 of the distributor 101 and two other electrical devices with a cable, An electric signal output from one electric device can be supplied to the other two electric devices.

  Here, when it is necessary to input an electric signal output from one electric device to three other electric devices, the two distributors 101 may be connected and used. FIG. 12 is a schematic plan view showing a connection example of two distributors 101. For example, the output terminal of the electric device 151 that outputs an electric signal and the input terminal 103 of the first distributor 101 are connected by the cable 110. The output terminal 104 of the first distributor 101 and the input terminal of the electric device 152 are connected by the cable 111, and the output terminal 105 of the first distributor 101 and the input terminal 103 of the second distributor 101 are connected. The cable 112 is connected. Further, the output terminal 104 of the second distributor 101 and the input terminal of the electric device 153 are connected by the cable 113, and the output terminal 105 of the second distributor 101 and the input terminal of the electric device 154 are connected by the cable 114. Connect with. Thereby, the electric signal which the electric equipment 151 outputs can be input into the three electric equipments 152-154.

Patent Document 1 proposes a highly reliable branching / distributing device that can reduce the number of work steps for attaching a coaxial cable and that does not cause contact failure or disconnection at a connecting portion. This branching / distributing device has the same configuration as that of the distributing device 101 shown in FIG. 11. By using the same method as the connecting method shown in FIG. 12, the electric signal is branched / distributed to more devices. can do.
Japanese Patent Laid-Open No. 10-112923

  In the case of the conventional distributor 101 shown in FIG. 11, electrical signals can be distributed to the three devices 152 to 154 by connecting the two distributors 101 with cables as shown in FIG. However, there are cases where the two distributors 101 are arranged in an overlapping manner due to restrictions such as a space for arrangement. For example, when distributing a video signal output from an imaging device mounted on a vehicle to a plurality of ECUs (Electronic Control Units) disposed at appropriate positions of the vehicle, a distributor 101 and cables 110 to 114 are disposed. The space that can be done is greatly limited. In such a case, it is often necessary to arrange the two distributors 101 close to each other, for example, in a stacked manner.

  The cable 112 that connects the two distributors 101 needs to be bent in order to connect the two distributors 101 that are stacked, and because the space that can be disposed is limited, the length of the cable 112 is as short as possible. It is desirable. However, particularly when mounted on a vehicle, a cable that is strictly shielded is used as the cable 112 in order to shield the transmitted electrical signal from external noise, and cannot be bent easily. Therefore, the cable 112 needs to have a certain length, and there is a problem that it is difficult to arrange in a limited space such as a vehicle, and it is easy to arrange the two distributors 101 close to each other. There was a problem that could not be done.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a first distributor in which an input unit and an output unit are arranged in a recess formed in the casing unit, and a housing. One output part or input part connected to the input part or one output part of the first distributor is arranged on the convex part formed on the body part, and the other output part is provided in the concave part formed on the housing part. Alternatively, the first distributor is connected to the first distributor by inserting the convex section of the second distributor into the concave section of the first distributor by using the second distributor with the input section. By connecting the distributor and the second distributor, a plurality of distributors can be connected without using a cable, and the plurality of connected distributors can be arranged in a small space. It is to provide a connecting structure and a distributor.

  Another object of the present invention is to provide a configuration in which the entire convex portion is accommodated in the concave portion when the convex portion of the second distributor is inserted into the concave portion of the first distributor. It is an object of the present invention to provide a distributor connecting structure capable of firmly connecting the distributor and the second distributor.

  Another object of the present invention is that when the input portion or the one output portion of the first distributor has a convex shape, the metal cylindrical terminal member is replaced with the convex portion of the second distributor. And the engaging claw portion provided on the terminal member is engaged with the conductive engaged portion formed in the accommodation hole, whereby the terminal portion of the first distributor is accommodated. One output unit connected to a convex input unit or one output unit by adopting a configuration of one output unit or input unit of the second distributor connected to the input unit and one output unit Alternatively, it is an object of the present invention to provide a distributor connecting structure in which an input portion can be easily provided on a convex portion of a second distributor.

  Another object of the present invention is to provide a plurality of distributors in which an input part and an output part are arranged in a recess formed in the housing part, and a distributor on one surface and the other surface of the housing part. A connecting member provided with a connecting portion connected to the input portion or the output portion of the first connecting portion, one side of the connecting member is inserted into the concave portion of one distributor, the connecting portion is connected to one output portion, and the other By connecting the plurality of distributors by inserting the other side of the connecting member into the concave portion of the distributor and connecting the connecting portion to the input unit, the plurality of distributors can be connected without using a cable, It is an object to provide a distributor connecting structure and a connecting member capable of arranging a plurality of connected distributors in a small space.

  Further, another object of the present invention is to provide a shielding means for covering the other surface where the concave portion is not formed on the casing portion of the distributor so as to shield electric noise. It is an object of the present invention to provide a distributor connecting structure that is less susceptible to noise.

  The distributor connection structure according to the first aspect of the present invention includes an input unit to which an electric signal is input and a plurality of output units for outputting the electric signal, and distributes the electric signal input from the input unit to the plurality of output units. In the distributor connecting structure for connecting a plurality of distributors by connecting one output section of one distributor to an input section of another distributor, a recess is formed on one surface. A first distributor having a polyhedron-shaped casing portion, wherein the concave portion or the convex input portion and output portion are disposed in the concave portion, and being inserted into the concave portion and the concave portion of the first distributor. A convex-shaped or concave-shaped output part fitted to the input part of the first distributor, or the first A convex or concave input portion that fits into one output portion of the distributor is disposed on the convex portion, and is disposed on the convex portion. A second distributor disposed in the concave portion, the convex portion of the second distributor being inserted into the concave portion of the first distributor, and the convex portion Connect one output section arranged in the input section and the input section arranged in the concave section, or connect the input section arranged in the convex section and one output section arranged in the concave section. The first distributor and the second distributor are connected to each other.

  Further, the distributor connecting structure according to the second aspect of the invention is such that when the convex portion of the second distributor is inserted into the concave portion of the first distributor, the entire convex portion is accommodated in the concave portion. It is characterized by being.

  In the distributor connecting structure according to the third aspect of the present invention, when the input section or the one output section of the first distributor has a convex shape, the second distributor has a metal cylindrical shape. A terminal member formed; a receiving hole formed in the convex portion for receiving the terminal member; an engaging claw portion formed in the terminal member; and formed in the receiving hole and engaged with the engaging claw portion. The terminal member accommodated in the accommodation hole is used as the one output part or input part.

  The distributor connection structure according to a fourth aspect of the present invention includes an input unit to which an electric signal is input and a plurality of output units that output the electric signal, and the electric signal input from the input unit is output to the plurality of output units. In a distributor connection structure in which a plurality of distributors are distributed to each other, one output unit of one distributor is connected to an input unit of another distributor, and the plurality of distributors are connected. A polyhedron having a polyhedron-shaped casing portion with a concave portion formed on the surface, the concave or convex input portion and output portion being disposed in the concave portion, and being insertable into the concave portion of the distributor A convex shape or a concave shape which is disposed on one surface and the other surface of the housing portion and is electrically connected by being fitted to the input portion or the output portion of the distributor. And the connection portions respectively disposed on the one surface and the other surface are electrically connected. A connecting member, wherein one side of the connecting member is inserted into a recess of one distributor to connect the connecting portion to the one output portion, and the other side of the connecting member is connected to a recess of another distributor. The one distributor and the other distributor are connected by inserting and connecting the connecting section to the input section.

  The distributor connection structure according to a fifth aspect of the invention is characterized in that the distributor has a shielding means for shielding electrical noise by covering the other surface of the housing part where the recess is not formed. To do.

  A distributor according to a sixth aspect of the present invention includes an input unit to which an electric signal is input and a plurality of output units that output the electric signal, and the electric signal input from the input unit is supplied to the plurality of output units. The distributor for distribution includes a housing portion having a concave portion and a convex portion formed on one surface, and one concave output portion is disposed on the convex portion, and the other convex output portion and input The portion is disposed in the concave portion.

  According to a seventh aspect of the present invention, there is provided a connecting member for connecting a plurality of distributors that respectively distribute inputted electric signals, and a casing portion having a polyhedral shape and one surface of the casing portion. And two other connecting portions disposed on the one surface and the other surface, respectively, and electrically connected to the distributor. It is characterized by being.

  In the present invention, the first distributor has a configuration in which a concave or convex input unit and output unit are arranged in a concave portion formed on one surface of a polyhedral casing. In addition, the second distributor is provided with one output unit or input unit connected to the input unit or one output unit of the first distributor on the convex portion formed on one surface of the casing unit having a polyhedral shape. The other output unit or the input unit is arranged in a recess formed on one surface of the housing unit. Insert the convex part of the second distributor into the concave part of the first distributor, and connect one output part or input part arranged in the convex part to the input part or one output part arranged in the concave part. And two distributors can be connected. As a result, the electrical signal distributed and output by one distributor can be further distributed and output by the other distributor. Since no cable is used to connect the distributors, a plurality of distributors can be easily placed in close proximity to a limited space.

  In the present invention, the convex portion of the second distributor has such a size and shape that the entire convex portion can be accommodated in the concave portion when inserted into the concave portion of the first distributor. Therefore, since the convex portion protruding from the housing portion of the second distributor is hidden in the housing portion of the first distributor by the connection of the first distributor and the second distributor, the second distributor Protects the convex part from external impact. Moreover, when the 1st divider | distributor has a means to shield an electrical noise, the influence of the electrical noise with respect to the convex part of a 2nd divider | distributor is reduced.

  Moreover, in this invention, when the input part of the 1st divider | distributor or one output part makes convex shape, it is the metal cylinder shape accommodated in the accommodation hole formed in the convex part of the 2nd distributor. The terminal member forming the above is used as one output unit or input unit of the second distributor. Accordingly, the concave one output portion or the input portion can be easily provided on the convex portion of the second distributor, and the convex input portion and the one output portion of the first distributor are connected to the tube of the terminal member. It can be inserted and fitted inside. Moreover, the terminal claw part provided in the terminal member is engaged with the conductive engaged part formed in the accommodation hole, thereby fixing the terminal member to the accommodation hole. As a result, the terminal member does not fall out of the receiving hole, and the metal terminal member is electrically connected to the conductive engaged portion.

  In the present invention, the distributor has a configuration in which a concave or convex input portion and an output portion are arranged in a concave portion formed on one surface of a polyhedral body. The connecting member for connecting the distributor has a configuration in which a connection portion connected to the input portion or the output portion of the distributor is provided on one surface and the other surface of the housing portion having a polyhedral shape. As a result, one side of the connecting member is inserted into the recess of one distributor and the connecting portion is connected to one output portion, and the other side of the connecting member is inserted into the recess of the other distributor and the connecting portion is input. One distributor and another distributor can be connected to each other. Further, the two connecting portions arranged on one surface and the other surface of the connecting member are electrically connected. As a result, one output unit of one distributor is electrically connected to the input unit of another distributor, and the electric signal distributed by one distributor is further increased by another distributor. Can be distributed. Since no cable is used to connect the distributors, a plurality of distributors can be easily placed in close proximity to a limited space.

  Moreover, in this invention, it is set as the structure which covers the surface in which the recessed part of the housing | casing part of a divider | distributor is not formed with the shielding means which shields an electrical noise. Thus, in both cases of using the distributor alone and connecting and using a plurality of distributors with the connecting member, it is possible to prevent the electric signal from being deteriorated by electrical noise in the distributor.

  In the case of the first invention and the sixth invention, the convex part of the second distributor is inserted into the concave part of the first distributor, and the convex part is provided in the input part provided in the concave part or one output part. By connecting one output section or input section to connect the first distributor and the second distributor, a plurality of distributors can be connected without using a cable, and a large number of one electrical signal can be connected. Can be distributed to other devices. Therefore, since a plurality of connected distributors can be easily arranged close to a small space, they can be easily arranged in a limited space such as a vehicle. The degree of freedom in laying cables to be connected can be increased.

  According to the second aspect of the present invention, when the convex portion of the second distributor is inserted into the concave portion of the first distributor, the entire convex portion is accommodated in the concave portion. Since the projecting portion protruding from the housing portion of the first distributor is hidden in the housing portion of the first distributor, the projecting portion of the second distributor can be protected from external impact, and the first distributor and the second distributor can be protected. The distributor can be firmly connected. Further, when the first distributor has a means for shielding electrical noise, the influence of the electrical noise on the convex portion of the second distributor is reduced, so that the electrical signal due to the electrical noise is reduced. Can be prevented from occurring at the convex portion. Therefore, the reliability of the distributor connection structure can be increased.

  Further, in the case of the third invention, when the input part or the one output part of the first distributor has a convex shape, the metal made of the metal accommodated in the accommodating hole formed in the convex part of the second distributor. By configuring the cylindrical terminal member as one output part or input part, the concave one output part or input part can be easily provided on the convex part of the second distributor. The productivity of the second distributor can be increased. Further, by adopting a configuration in which the engaging claw provided on the terminal member is engaged with the conductive engaged portion formed in the receiving hole, the terminal member can be firmly fixed to the receiving hole, and the metal Since the manufactured terminal member can be easily and reliably electrically connected to the conductive engaged portion, the reliability of the distributor connecting structure can be further improved.

  According to the fourth and seventh inventions, one side of the connecting member is inserted into the concave portion of one distributor, the connecting portion is connected to one output portion, and the connecting member is connected to the concave portion of the other distributor. By connecting the plurality of distributors by inserting the other side and connecting the connection section to the input section, the plurality of distributors can be connected without using a cable, and one electrical signal can be sent to many devices. Can be distributed. Therefore, since a plurality of connected distributors can be easily arranged close to a small space, they can be easily arranged in a limited space such as a vehicle. The degree of freedom in laying cables to be connected can be increased.

  According to the fifth aspect of the present invention, the surface of the distributor where the recess is not formed is covered with shielding means for shielding electrical noise, so that the electrical signal is electrically transmitted by the distributor. Since it is possible to prevent deterioration due to noise, it is possible to increase the reliability of the distribution of the electric signal by the distributor, and a plurality of devices to which the distributed electric signal is given perform processing based on each high-quality electric signal. It can be carried out.

(Embodiment 1)
Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof. FIG. 1 is a schematic diagram showing a configuration example of an in-vehicle imaging system using a distributor coupling structure according to Embodiment 1 of the present invention. In the figure, reference numeral 100 denotes a vehicle, and a camera 151 is mounted near the front bumper of the vehicle 100 so that the front of the vehicle 100 is imaged by the camera 151. The camera 151 is configured to output a video signal related to the captured video, and the output video signal is provided to three ECUs 152 to 154 mounted at appropriate positions of the vehicle 100. A distributor 1 and a distributor 3 are mounted on the vehicle 100 in order to distribute one video signal output from the camera 151 to the three ECUs 152 to 154.

  The distributor 1 and the distributor 3 each have a function of distributing a video signal output from one device to two other devices, and one (or one set) input terminal to which the video signal is input. And two (or two sets) of output terminals for outputting the distributed video signals. In addition, the distributor 1 and the distributor 3 can be connected and used, and by connecting, the video signal output from one device can be distributed to three other devices. In this case, the distributor 3 is connected to the camera 151 and the ECU 152 by the video signal cable 5 and distributes the video signal input from the camera 151 to the ECU 152 and the distributor 1. The distributor 1 is connected to the ECUs 153 and 154 via the video signal cable 5 so as to distribute the video signal input from the distributor 3 to the ECUs 153 and 154. Although not shown in FIG. 1, when it is necessary to supply power to the distributor 1 and the distributor 3, the power supply unit mounted on the vehicle 100 and the distributor 1 and the distributor 3 are powered. Connect with a cable.

  FIG. 2 is a schematic diagram showing the configuration of the distributor 1 according to Embodiment 1 of the present invention. The distributor 1 has a substantially rectangular parallelepiped casing 11, and a recess 14 is provided on one surface (hereinafter referred to as a front surface) of the casing 11. The bottom surface of the recess 14 has a substantially rectangular shape, and 2 × 4 columnar metal terminals are arranged vertically and horizontally on the bottom surface. The eight metal terminals are a set of two, and the input terminals 21 and 22, the power supply terminals 23 and 24, the first output terminals 25 and 26, and the second output terminals 27 and 28 are arranged in order from one side. It protrudes (see FIG. 2 (a)). The distributor 1 distributes and outputs the electric signals input from the input terminals 21 and 22 to the first output terminals 25 and 26 and the second output terminals 27 and 28, and operates the internal circuit. Electric power is supplied from the power terminals 23 and 24.

  The distributor 1 according to the present embodiment is configured to distribute an LVDS (Low Voltage Differential Signaling) type video signal or an NTSC (National TV Standards Committee) type video signal as an electrical signal. Each of the output terminals 25 and 26 and the second output terminals 27 and 28 is composed of two metal terminals. However, the present invention is not limited to this, and depending on the type of electric signal to be distributed, it is composed of one metal terminal. Also good. Further, the distributor 1 according to the present embodiment includes an electric circuit such as an amplifier and distributes an electric signal therein, so that power for operating the electric circuit is supplied from the power supply terminals 23 and 24. However, the present invention is not limited to this, and when the power is not required, such as when the signal is simply divided by dividing the wiring or when the signal is distributed using a transformer or the like, the distributor 1 is connected to the power supply terminal 23. , 24 may be omitted.

  The housing 11 of the distributor 1 is provided with a space for accommodating the circuit board 15 having a rectangular plate shape between the bottom surface of the recess 14 and the back surface of the housing 11. Eight metal terminals of the input terminals 21 and 22, the power supply terminals 23 and 24, the first output terminals 25 and 26, and the second output terminals 27 and 28 are connected and fixed to the circuit board 15 and formed on the bottom surface of the recess 14. Eight metal terminals protrude into the recess 14 through the eight through holes formed. The housing 11 of the distributor 1 is divided into a front side portion 12 and a back side portion 13 at a position from the back side of the side portion, and after the circuit board 15 is accommodated, the front side portion 12 and the back side portion 13. Is fixed by bonding with an adhesive, welding by heat processing, screwing, or the like (see FIG. 2B).

  The video signal cable 5 used for input / output of video signals has a configuration in which rectangular parallelepiped terminal portions 52 are provided at both ends of two signal lines 51, respectively. The terminal portion 52 has two signal lines 51 connected on one surface, and two female terminals 53 on the other surface. The two female terminals 53 are electrically connected to the two signal lines 51, respectively, and are formed in a concave shape into which one metal terminal protruding from the concave portion 14 of the distributor 1 is fitted. The configuration of the power cable 6 used for power supply is the same, and includes two power lines 61 for VCC and GND, a terminal section 62 provided at each end of the power line 61, and a terminal section 62. It has two female terminals 63 provided. The video signal cable 5 and the power supply cable 6 have substantially the same shape.

  The concave portion 14 of the distributor 1 has such a size and shape that the terminal portions 52 of the three video signal cables 5 and the terminal portions 62 of the one power supply cable 6 can be inserted side by side without any gap. The terminal portion 52 of the video signal cable 5 inserted into the concave portion 14 of the distributor 1 has input terminals 21 and 22, first output terminals 25 and 26, or second output terminals 27 and 28 that protrude from the concave portion 14. Any one of these metal terminals is inserted into and fitted into the two female terminals 53. Further, the terminal portion 62 of the power cable 6 inserted into the concave portion 14 of the distributor 1 is configured such that the power terminals 23 and 24 projecting from the concave portion 14 are inserted into the two female terminals 63 and fitted. is there.

  FIG. 3 is a schematic diagram for explaining signal distribution by the distributor 1 according to the first embodiment of the present invention. In FIG. 3, three video signal cables 5 and one power cable 6 are connected. A side view of the distributor 1 in this state is shown, and (b) shows a circuit configuration inside the distributor 1. When a video signal is input from the video signal cable 5 connected to the input terminals 21 and 22 of the distributor 1, the distributor 1 directly outputs the input video signal from the first output terminals 25 and 26. It is like that. Further, the distributor 1 includes an amplifier 16, and a video signal input from the input terminals 21 and 22 is amplified by the amplifier 16 and output from the second output terminals 27 and 28. The amplifier 16 is mounted on the circuit board 15 so as to amplify a two-input input signal and output it as a two-output output signal, and operates with power supplied from power supply terminals 23 and 24.

  FIG. 4 is a schematic diagram for explaining an example of use of the distributor 1. Two distributors 1 are connected using a video signal cable 5, and one input video signal is distributed into three. An example of doing this is shown. In this example, two distributors 1 are used, but in order to distinguish them, in FIG. 4, one distributor is 1a and the other distributor is 1b. Similarly, five video signal cables 5 and two power supply cables 6 are used. In order to distinguish between these, the video signal cables are denoted by reference numerals 5a to 5e, and each power supply cable 6a and 6b is attached | subjected.

  In one distributor 1a, an input video signal cable 5a is connected to input terminals 21 and 22, an output video signal cable 5b is connected to first output terminals 25 and 26, and a second output terminal. 27 and 28 are connected to a video signal cable 5c for connection, and a power cable 6a is connected to power terminals 23 and 24. The other distributor 1 b is connected to the input video signal cable 5 c at the input terminals 21 and 22, is connected to the video signal cable 5 d for output at the first output terminals 25 and 26, and is connected to the second output terminal 27. 28, an output video signal cable 5e is connected, and a power cable 6b is connected to the power terminals 23 and 24.

  In this configuration, when a video signal is input from the video signal cable 5a to the input terminals 21 and 22 of one distributor 1a, the video signal is distributed by the distributor 1a. The distributed video signal is output from the first output terminals 25 and 26 to the video signal cable 5b and from the second output terminals 27 and 28 to the video signal cable 5c. To the input terminals 21 and 22 of the other distributor 1b. The distributor 1b distributes the video signals input from the input terminals 21 and 22 and outputs the video signals from the first output terminals 25 and 26 to the video signal cable 5d, and from the second output terminals 27 and 28 to the video signal cable. Output to 5e.

  As shown in FIG. 4, by connecting the two distributors 1a and 1b, the video signal input from the video signal cable 5a is distributed by the two distributors 1a and 1b and is used for three video signals. Output from the cables 5b, 5d, 5e. However, since this is equivalent to the conventional method shown in FIG. 12, there is a possibility that problems such as being unable to arrange in a small space as described above may occur. In order to solve this problem, in the distributor connecting structure according to the present invention, the distributor 1 and the distributor 3 are connected using a distributor 3 having a slightly different shape from the distributor 1.

  FIG. 5 is a schematic diagram showing the configuration of the distributor 3 according to Embodiment 1 of the present invention. The distributor 3 has a substantially rectangular parallelepiped casing 31 having substantially the same shape as the casing 11 of the distributor 1. The front surface of the casing 31 of the distributor 3 is substantially rectangular, and a recess 34 having a size about 3/4 of the recess 14 of the distributor 1 is provided on one short side of the front surface of the casing 31. In addition, a rectangular parallelepiped convex portion 37 is provided on the other short side. The depth of the recessed portion 34 of the distributor 3 is substantially the same as the depth of the recessed portion 14 of the distributor 1, and the protrusion amount of the protruding portion 37 protruding from the front surface of the housing 31 of the distributor 3 is substantially the same as the depth of the recessed portion 34. It is.

  The bottom surface of the concave portion 34 of the distributor 3 is substantially rectangular, and 2 × 3 columnar metal terminals are arranged vertically and horizontally on the bottom surface. The shape of the metal terminal projecting from the recess 34 of the distributor 3 is substantially the same as the shape of the metal terminal projecting from the recess 14 of the distributor 1. Two sets of six metal terminals are formed in the recess 34, and the input terminals 41, 42, the power supply terminals 43, 44, and the first output terminals 45, 46 project in order from the side far from the projection 37. (See FIG. 5A). The concave portion 34 of the distributor 3 is sized and shaped so that the terminal portions 52 of the two video signal cables 5 and the terminal portions 62 of the one power supply cable 6 can be inserted side by side without any gap. The terminal portion 52 of the video signal cable 5 inserted into the concave portion 34 of the distributor 3 is a set of metal terminals of any one of the input terminals 41 and 42 or the first output terminals 45 and 46 protruding from the concave portion 34. Are inserted into and fitted into the two female terminals 53. Further, the terminal portion 62 of the power cable 6 inserted into the recess 34 of the distributor 3 is fitted so that the power terminals 43 and 44 projecting from the recess 34 are inserted into the two female terminals 63. is there.

  The protruding end surface of the convex portion 37 of the distributor 3 is substantially rectangular, and two concave metal terminals are disposed on the protruding end surface. The two metal terminals are one set, and are second output terminals 47 and 48 for outputting video signals (see FIG. 5A). The second output terminals 47 and 48 are concave metal terminals that are externally fitted to metal terminals protruding from the concave portion 14 of the distributor 1, and are so-called female terminals. The convex portion 37 of the distributor 3 has a size and a shape that can be inserted into the concave portion 14 of the distributor 1. When the convex portion 37 of the distributor 3 is inserted into the concave portion 14 of the distributor 1, A metal terminal protruding from the concave portion 14 of the distributor 1 is inserted into and fitted into the second output terminals 47 and 48 provided on the convex portion 37 of the distributor 3. At this time, the convex portion 37 of the distributor 3 is inserted into the concave portion 14 of the distributor 1 so that the second output terminals 47 and 48 of the distributor 3 are fitted to the input terminals 21 and 22 of the distributor 1. In the state where the second output terminals 47 and 48 of the distributor 3 and the input terminals 21 and 22 of the distributor 1 are fitted, the convex portion 37 of the distributor 3 inserted into the concave portion 14 of the distributor 1 is The insertion of the image signal cable 5 and the power supply cable 6 into the recess 14 of the distributor 1 is not hindered.

  The distributor 3 directly outputs the image signal input from the input terminals 41 and 42 from the first output terminals 45 and 46, and amplifies the image signal by an amplifier (not shown) to output from the second output terminals 47 and 48. It is designed to output. In addition, power for operating the amplifier is supplied from power terminals 43 and 44. However, as in the case of the distributor 1, when it is not necessary to supply power in order to distribute the image signal by the distributor 3, the distributor 3 may not include the power supply terminals 43 and 44.

  The housing 31 of the distributor 3 is provided with a space for accommodating a circuit board 35 having a rectangular plate shape between the bottom surface of the recess 34 and the back surface of the housing 31. The six metal terminals of the input terminals 41 and 42, the power supply terminals 43 and 44, and the first output terminals 45 and 46 are connected and fixed to the circuit board 35, and the metal terminals constituting the second output terminals 47 and 48 are circuits. Six metal terminals project into the recess 34 through the through holes formed in the bottom surface of the recess 34 and the projection 37, and the two metal terminals are in the projection 37. (Details will be described later). The casing 31 of the distributor 3 is divided into a front side portion 32 and a back side portion 33 at a position from the back side of the side portion, and after the circuit board 35 is accommodated, the front side portion 32 and the back side portion 33. Are fixed by bonding with an adhesive, welding by thermal processing, screwing, or the like (see FIG. 5B).

  FIG. 6 is a schematic diagram showing a distributor connection structure according to the first embodiment of the present invention. FIG. 6A shows a state before connection between the distributor 1 and the distributor 3, and FIG. This state is illustrated. In FIG. 6, four video signal cables 5 and two power supply cables 6 are used. In order to distinguish these cables, the video signal cables are denoted by reference numerals 5a to 5d, and Reference numerals 6a and 6b are attached to the power cable.

  When connecting the distributor 1 and the distributor 3, first, the convex portion 37 provided in the distributor 3 is inserted into the concave portion 14 of the distributor 1, and the second output provided on the protruding end surface of the convex portion 37. The terminals 47 and 48 are fitted and connected to the input terminals 21 and 22 projecting from the recess 14. Next, two video signal cables 5a, 5b and one power cable 6a are inserted into the recess 34 of the distributor 3, the power cable 5a is connected to the input terminals 41, 42, and the first output terminal 45, The video signal cable 5 b is connected to 46, and the power cable 6 a is connected to the power terminals 43 and 44. Further, two video signal cables 5c, 5d and one power cable 6b are inserted into the remaining portion of the concave portion 14 of the distributor 1, and the power cable 6b is connected to the power terminals 23, 24, and the first The video signal cable 5c is connected to the output terminals 25 and 26, and the video signal cable 5d is connected to the second output terminals 27 and 28 (see FIG. 6A).

  After completing the connection of the distributor 1 and the distributor 3, and the connection of the video signal cables 5a to 5d and the power cables 6a and 6b, the power cables 6a and 6b are turned on, and the video signal cables are connected. A video signal is input to the distributor 3 from 5a. The distributor 3 distributes the video signals input to the input terminals 41 and 42 through the video signal cable 5a and outputs them from the first output terminals 45 and 46 and the second output terminals 47 and 48, respectively. The video signals output from the first output terminals 45 and 46 are input to other devices via the video signal cable 5b. Video signals output from the second output terminals 47 and 48 are input to the input terminals 21 and 22 of the distributor 1.

  The distributor 1 distributes the video signals input from the distributor 3 to the input terminals 21 and 22 and outputs the video signals from the first output terminals 25 and 26 and the second output terminals 27 and 28, respectively. Video signals output from the first output terminals 25 and 26 are input to other devices via the video signal cable 5c. The video signal output from the second output terminals 27 and 28 is input to another device via the video signal cable 5d (see FIG. 6B).

  FIG. 7 is a schematic diagram showing the internal structure of distributors 1 and 3 according to Embodiment 1 of the present invention. FIG. 7A shows a state before connection of distributor 1 and distributor 3, and FIG. The state after connection is shown in FIG. As illustrated, the protruding amount of the convex portion 37 provided in the distributor 3 and the depth of the concave portion 14 of the distributor 1 are substantially equal. Thus, when the distributor 1 and the distributor 3 are connected, the entire convex portion 37 of the distributor 3 is accommodated in the concave portion 14 of the distributor 1 and is not exposed to the outside.

  Further, the casing 11 of the distributor 1 has a substantially rectangular parallelepiped shape (that is, a hexahedron), but the five surfaces other than the surface on which the concave portion 14 is formed are shield members 11a for shielding electrical noise. Covered with Similarly, the casing 31 of the distributor 3 is covered with a shield member 31a on five surfaces other than the surface on which the recess 34 is formed. The casing 11 of the distributor 1 and the casing 31 of the distributor 3 are made of non-conductive synthetic resin or the like, and the shield members 11a and 31a are made of, for example, a metal plate, metal foil, or conductive resin. be able to.

  The convex portion 37 of the distributor 3 is not covered with the shield member 31a. However, when the distributor 1 and the distributor 3 are connected, the convex portion 37 of the distributor 3 is inserted into the concave portion 14 of the distributor 1 and is entirely Therefore, the convex portion 37 of the distributor 3 is shielded from electrical noise by the shield member 11 a provided in the casing 11 of the distributor 1. However, the shield member 31 a may be provided around the convex portion 37 of the distributor 3.

  The second output terminals 47 and 48 provided on the convex portion 37 of the distributor 3 are concave metal terminals that fit into the metal terminals protruding from the concave portion 14 of the distributor 1. In order to facilitate manufacture and assembly and improve the durability of the second output terminals 47 and 48, a metal terminal manufactured as a separate member is incorporated into the distributor 3. FIG. 8 is a schematic diagram illustrating a configuration of the second output terminal 47 of the distributor 3 according to the first embodiment of the present invention, and schematically illustrates a cross section of the second output terminal 47 provided on the convex portion 37 of the distributor 3. The figure is enlarged and illustrated. Since the second output terminal 48 of the distributor 3 has the same configuration, the illustration is omitted.

  The second output terminal 47 manufactured as a separate member has a bottomed cylindrical tube portion 47p in which a hole 47q is formed on one end side, and extends from the other end of the tube portion 47p in the axial direction of the tube portion 47p. It is the structure which has the two engaging claw parts 47r provided in this way. A gap having a predetermined interval is provided between the two engaging claws 47r so that the two engaging claws 47r can be bent in the adjacent direction.

  The convex portion 37 of the distributor 3 is formed with an accommodation hole 37p for inserting and accommodating the second output terminal 47 manufactured as a separate member. The receiving hole 37p is a cylindrical through hole having an inner diameter substantially equal to the outer diameter of the cylindrical portion 47p of the second output terminal 47, and the engaged portion having a slightly larger inner diameter in the middle of the receiving hole 37p. 37q is provided. Further, the inner part of the engaged portion 37q and the inner portion of the accommodation hole 37p are made conductive by attaching a conductive member 37r such as metal foil or conductive resin. Further, a metal terminal 47a protruding from the circuit board 35 of the distributor 3 is inserted and fitted in the back side of the accommodation hole 37p, and the conductive member 37r and the metal terminal 47a in the accommodation hole 37p are in contact with each other. Thus, the conductive member 37 in the accommodation hole 37p is electrically connected to the circuit board 35. In the manufacturing process of the distributor 3, assembly is performed by inserting the second output terminal 47 manufactured as a separate member into the accommodation hole 37p formed in the convex portion 37 of the distributor 3 (see FIG. 8A).

  As for the 2nd output terminal 47 inserted in the accommodation hole 37p of the convex part 37, two engagement nail | claw parts 47r engage with the to-be-engaged part 37q of the accommodation hole 37p, and it becomes impossible to remove | extract from the accommodation hole 37p. It is like that. At this time, the engaging claw portion 47r of the second output terminal 47 is in contact with the conductive member 37r attached to the engaged portion 37q of the receiving hole 37p, and is provided on the second output terminal 47 and the circuit board 35. The metal terminal 47a is electrically connected (see FIG. 8B). Thereby, the assembly of the second output terminal 47 of the distributor 3 is completed, and for example, the input terminal 21 protruding from the concave portion 14 of the distributor 1 is inserted into the hole 47q of the second output terminal 47 and fitted. Can be electrically connected (see FIG. 8C).

  In the distributor connecting structure having the above configuration, the convex portion 37 provided in the distributor 3 is directly inserted into the concave portion 14 of the distributor 1 without using the video signal cable 5 as shown in FIG. In addition, by connecting the second output terminals 47 and 48 of the distributor 3 to the input terminals 21 and 22 of the distributor 1, it is possible to easily connect the distributor 1 and the distributor 3. In addition, one input video signal can be distributed to three video signals using the distributor 1 and the distributor 3. Therefore, even in a vehicle having a limited installation space, the two distributors 1 and 3 can be easily arranged close to each other. 1. The degree of freedom in laying the distributor 3 and the video signal cable 5 can be increased. Further, the distributor 1 is configured so that the shield member 11a covers a surface other than the surface on which the concave portion 14 of the housing 11 is formed, and the distributor 3 is other than the surface on which the convex portion 37 and the concave portion 34 of the housing 31 are formed. Since the shield member 31a covers this surface, it is possible to prevent the video signal from being deteriorated by electrical noise in the distributor 1 and the distributor 3. Further, when the distributor 1 and the distributor 3 are connected to each other, the convex portion 37 of the distributor 3 is configured to be entirely accommodated in the concave portion 14 of the distributor 1. The electrical noise can be shielded by the shield member 11 a provided in the distributor 1.

  In the present embodiment, the distributor 1 and the distributor 3 are configured to distribute one input video signal to two, but the present invention is not limited to this and is configured to distribute to three or more. Also good. Moreover, although it was set as the structure which connects the 1 distributor 1 and the 1 distributor 3, it is not restricted to this, It is good also as a structure which connects many more distributors 3 by using two or more distributors 3. FIG. . Further, the concave portion 14 of the distributor 1 and the concave portion 34 of the distributor 3 are provided with cylindrical metal terminals, so-called male terminals, and the convex portions 37 of the distributor 3 are provided with female terminals. Alternatively, a female terminal may be provided in the concave portion 14 of the distributor 1 and the concave portion 34 of the distributor 3, and a male terminal may be provided in the convex portion 37 of the distributor 3. Further, the distributor 1 is provided with only the concave portion 14, the distributor 3 is provided with the convex portion 37, and the convex portion 37 is provided with the second output terminals 47 and 48. However, the present invention is not limited to this. The device 3 may be provided with only a concave portion, the distributor 1 may be provided with a convex portion, and the input terminals 21 and 22 may be provided on the convex portion. Further, the distributor 1 and the distributor 3 are configured to distribute the video signal output from the camera 151 mounted on the vehicle 100, but the present invention is not limited to this, and other signals may be distributed. Good. Moreover, the shape of the distributor 1 and the distributor 3 is an example, and is not limited thereto.

(Embodiment 2)
The distributor connection structure according to the first embodiment is configured to connect two types of distributors 1 and 3 having different shapes, but the distributor connection structure according to the second embodiment connects the same type of distributor 1. It is the structure connected using the member 230. FIG. 9A and 9B are schematic views showing the configuration of the connecting member 230 of the distributor connecting structure according to Embodiment 2 of the present invention, where FIG. 9A is a perspective view and FIG. 9B is a plan view. In the distributor connecting structure according to the second embodiment, two distributors 1 (see FIG. 2 of the first embodiment) are connected using one connecting member 230. The connecting member 230 has two concave connection terminals 232 provided on one surface of a substantially rectangular parallelepiped casing 231, and two connection terminals 232 having the same configuration on the opposite surface. The connection terminals 232 are fitted with convex metal terminals such as input terminals 21 and 22, first output terminals 25 and 26, and second output terminals 27 and 28 provided in the recess 14 of the distributor 1. It has a shape. One connection terminal 232 provided on one surface of the housing 231 is electrically connected to one connection terminal 232 provided on the opposite surface, and the other connection terminal 232 provided on one surface is It is electrically connected to another connection terminal 232 provided on the opposite surface.

  The casing 231 of the connecting member 230 has a size and shape that can be inserted into the concave portion 14 of the distributor 1 together with the two video signal cables 5 and the one power supply cable 6. In addition, when the connecting member 230 is inserted into the concave portion 14 of one distributor 1 and the two metal terminals of the concave portion 14 and the two connection terminals 232 of the connecting member 230 are connected, the housing 232 of the connecting member 230. The other half is accommodated in the recess 14 and the remaining half is projected outward from the recess 14. By inserting this protruding portion into the recess 14 of another distributor 1, the two distributors 1 can be connected by the connecting member 230.

  FIG. 10 is a schematic diagram showing a distributor connection structure according to Embodiment 2 of the present invention, where (a) illustrates the state before connection of distributor 1 and (b) illustrates the state after connection. It is shown. In FIG. 9, the case where two distributors 1 are connected is illustrated. In order to distinguish these, each distributor is denoted by reference numeral 1 a or 1 b. Similarly, the four video signal cables 5 and the two power supply cables 6 are used. In order to distinguish these, the video signal cables are denoted by reference numerals 5a to 5d, and each power supply cable is assigned to each power supply cable. 6a or 6b is attached.

  When connecting the two distributors 1a and 1b, first, one side of the connecting member 230 is inserted into the recess 14 of one distributor 1a, and the connection terminal 232 on one surface of the connecting member 230 is connected to the distributor 1a. Connect to the second output terminals 27, 28. Further, the other side of the connecting member 230 is inserted into the recess 14 of the other distributor 1b, and the connection terminal 232 on the other surface of the connecting member 230 is connected to the input terminals 21 and 22 of the distributor 1b. Next, two video signal cables 5a and 5b and one power supply cable 6a are inserted into the recess 14 of one distributor 1a, and the video signal cable 5a is connected to the input terminals 21 and 22, and the first output. The video signal cable 5 b is connected to the terminals 25 and 26, and the power cable 6 a is connected to the power terminals 23 and 24. Also, two video signal cables 5c, 5d and one power cable 6b are inserted into the recess 14 of the other distributor 1b, the power cable 6b is connected to the power terminals 23, 24, and the first output terminal The video signal cable 5c is connected to 25 and 26, and the video signal cable 5d is connected to the second output terminals 27 and 28 (see FIG. 10A).

  After completing the connection of the distributors 1a and 1b and the connection of the video signal cables 5a to 5d and the power cables 6a and 6b, the power is turned on by the power cables 6a and 6b, and the video signal cable 5a is connected. A video signal is input to the distributor 1a. The distributor 1a distributes the video signals input to the input terminals 21 and 22 through the video signal cable 5a and outputs them from the first output terminals 25 and 26 and the second output terminals 27 and 28, respectively. Video signals output from the first output terminals 25 and 26 are input to other devices via the video signal cable 5b. The video signals output from the second output terminals 27 and 28 are input to the input terminals 21 and 22 of the distributor 1b through the connecting member 230.

  The distributor 1b distributes the video signals input from the distributor 1a to the input terminals 21 and 22, and outputs the video signals from the first output terminals 25 and 26 and the second output terminals 27 and 28, respectively. Video signals output from the first output terminals 25 and 26 are input to other devices via the video signal cable 5c. The video signal output from the second output terminals 27 and 28 is input to another device via the video signal cable 5d (see FIG. 6B).

  The distributor connecting structure according to the second embodiment having the above configuration can easily connect the same type of distributor 1 by connecting the two distributors 1 using the connecting member 230. There is an advantage. In addition, since the other structure of the divider | distributor connection structure which concerns on Embodiment 2 is the same as that of the divider | distributor connection structure which concerns on Embodiment 1, the same code | symbol is attached | subjected to a corresponding location and description is abbreviate | omitted. To do.

It is a schematic diagram which shows one structural example of the vehicle-mounted imaging system using the divider | distributor connection structure which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the structure of the divider | distributor which concerns on Embodiment 1 of this invention. It is a schematic diagram for demonstrating the signal distribution by the divider | distributor which concerns on Embodiment 1 of this invention. It is a schematic diagram for demonstrating one usage example of a divider | distributor. It is a schematic diagram which shows the structure of the divider | distributor which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the divider | distributor connection structure which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the internal structure of the divider | distributor which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the structure of the 2nd output terminal of the divider | distributor which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the structure of the connection member of the divider | distributor connection structure which concerns on Embodiment 2 of this invention. It is a schematic diagram which shows the divider | distributor connection structure which concerns on Embodiment 2 of this invention. It is a typical perspective view which shows one structural example of the conventional divider | distributor. It is a schematic plan view which shows one connection example of two divider | distributors.

Explanation of symbols

1, 1a, 1b Distributor (first distributor)
3 Distributor (second distributor)
5 Video signal cable 6 Power cable 11 Housing (housing)
11a Shield member (shielding means)
14 Recess 15 Circuit board 16 Amplifier 21, 22 Input terminal (input part)
23, 24 Power supply terminal 25, 26 First output terminal (output unit)

27, 28 Second output terminal (output unit)
31 Case (Case)
31a Shield member (shielding means)
34 concave portion 35 circuit board 37 convex portion 37p receiving hole 37q engaged portion 37r conductive member 41, 42 input terminal (input portion)
43, 44 Power supply terminal 45, 46 First output terminal (output unit)
47, 48 Second output terminal (output part, terminal member)
47a Metal terminal 47p Tube part 47q Hole part 47r Engagement claw part 51 Signal line 52 Terminal part 53 Female terminal 61 Power supply line 62 Terminal part 63 Female terminal 100 Vehicle 151 Camera 152-154 ECU
230 connecting member 231 housing (housing portion)
232 connection terminal (connection part)

Claims (7)

One distributor having an input unit to which an electric signal is input and a plurality of output units for outputting the electric signal, and a plurality of distributors for distributing the electric signal input from the input unit to the plurality of output units, In a distributor connecting structure in which one output unit is connected to an input unit of another distributor to connect the plurality of distributors,
A first distributor having a polyhedron-shaped casing part having a concave part formed on one surface, wherein the concave or convex input part and output part are disposed in the concave part;
A convex shape that has a housing portion having a polyhedral shape in which a concave portion and a convex portion that can be inserted into the concave portion of the first distributor are formed on one surface, and is fitted to the input portion of the first distributor Alternatively, a convex output portion that is fitted in one output portion of the concave shape or one output portion of the first distributor is provided in the convex portion, and the other output portion that is not provided in the convex portion. Alternatively, the input unit includes a second distributor disposed in the recess,
Inserting the convex portion of the second distributor into the concave portion of the first distributor and connecting one output portion disposed in the convex portion and the input portion disposed in the concave portion; or The first distributor and the second distributor are connected by connecting the input section disposed in the convex section and the one output section disposed in the concave section. Distributor connection structure to perform. The convex portion of the second distributor is configured such that the entire convex portion is accommodated in the concave portion when inserted into the concave portion of the first distributor. Distributor connection structure. When the input unit or one output unit of the first distributor has a convex shape,
The second distributor is
A terminal member having a cylindrical shape made of metal;
A housing hole formed in the convex portion for housing the terminal member;
An engaging claw formed on the terminal member;
A conductive engaged portion formed in the receiving hole and engaged with the engaging claw portion;
The distributor connecting structure according to claim 1 or 2, wherein the terminal member accommodated in the accommodation hole is used as the one output part or input part. One distributor having an input unit to which an electric signal is input and a plurality of output units for outputting the electric signal, and a plurality of distributors for distributing the electric signal input from the input unit to the plurality of output units, In a distributor connecting structure in which one output unit is connected to an input unit of another distributor to connect the plurality of distributors,
The distributor has a polyhedron-shaped casing part with a concave part formed on one surface, and the concave or convex input part and output part are disposed in the concave part,
A casing having a polyhedral shape that can be inserted into the concave portion of the distributor, and disposed on one surface and the other surface of the casing, and are fitted to an input portion or an output portion of the distributor. A connecting member having a convex or concave connecting portion that is electrically connected, and wherein the connecting portions respectively disposed on the one surface and the other surface are electrically connected;
One side of the connecting member is inserted into the concave portion of one distributor to connect the connecting portion to the one output portion, and the other side of the connecting member is inserted into the concave portion of the other distributor. The distributor is connected to the input section, and the one distributor and the other distributor are connected to each other. 5. The distributor according to claim 1, further comprising a shielding unit configured to shield an electrical noise by covering the other surface of the housing portion where the concave portion is not formed. Connected structure. In a distributor that includes an input unit to which an electric signal is input and a plurality of output units that output the electric signal, and distributes the electric signal input from the input unit to the plurality of output units.
It is provided with a housing part in which a concave part and a convex part are formed on one surface,
A concave output portion is disposed on the convex portion;
The other output part and input part which are convex are arrange | positioned at the said recessed part, The distributor characterized by the above-mentioned. A connecting member for connecting a plurality of distributors for distributing input electric signals,
A housing having a polyhedral shape;
A connection portion disposed on one surface and the other surface of the housing portion and electrically connected to the distributor;
The connection member, wherein the connection portions respectively disposed on the one surface and the other surface are electrically connected.

Images