Multi-unit

Abstract

To provide a multi-unit which needs a reduced space and facilitates wiring.SOLUTION: A booster 10 comprises booster input terminals 12 and 13 and a booster output terminal 15, which are all formed on a booster terminal surface 11a. A distributor 20 comprises a distributor input terminal 22 and a plurality of distributor output terminals 23, which are all formed on a distributor terminal surface 21a. A connection part 40 retains the booster 10 and the distributor 20 such that the booster terminal surface 11a and the distributor terminal surface 21a may face an identical direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a multi-unit that integrates a booster and a distributor. [Background technology]

[0002] In a television community receiving system, an information distribution board is provided in which the receiving system equipment and communication equipment such as Internet equipment are concentrated in one place to make inspection, maintenance, and repair work easier.

[0003] The information distribution board is equipped with boosters that amplify television signals received from outside, distributors that distribute the power to each household from the signals amplified by the booster, etc. Since the information distribution board is stored in a box, the wiring between the devices installed in the information distribution board must be done in the narrow space inside the box.

[0004] The following Patent Document 1 describes a multi-unit in which a distributor is attached to a side of a booster case different from the side on which the input terminal and output terminal are provided, and the input terminal of the booster and the output terminal of the distributor are integrated so as to be arranged perpendicular to each other. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6624382 Summary of the Invention [Problem to be solved by the invention]

[0006] In conventional technology, the terminal directions of the booster and distributor were different, which made the wiring inside the information distribution board complicated, not only making the wiring work time-consuming but also resulting in unnecessary space being required for wiring.

[0007] One aspect of the present disclosure provides a multi-unit system that is space-saving and easy to wire. [Means for solving the problem]

[0008] One aspect of the present disclosure is a multi-unit including a booster, a distributor, a power supply unit, and a connection unit. The booster is configured to amplify an input signal and output the signal. The distributor is configured to distribute the power of the signal amplified by the booster to a plurality of outputs. The power supply unit is configured to receive power from an external power source and generate DC power to be supplied to the booster. The connection unit is configured to hold the booster, the distributor, and the power supply unit together.

[0009] The booster has a booster case formed in a rectangular parallelepiped shape, one of whose faces serves as a booster terminal face, and a booster input terminal for inputting an input signal is formed on the booster terminal face.

[0010] The distributor has one surface of a rectangular parallelepiped-shaped distributor case as a distributor terminal surface, and at least one of a plurality of distributor output terminals that output a plurality of signals whose power has been distributed by the distributor is formed on the distributor terminal surface.

[0011] The coupling portion includes a power supply holding portion, a booster holding portion, and a distributor holding portion. The power supply holding portion is configured to hold the power supply portion. The booster holding portion is configured to hold the booster. The distributor holding portion is configured to hold the distributor. The booster holding portion and the distributor holding portion are configured to hold the booster and the distributor such that the booster terminal surface and the distributor terminal surface face in the same direction.

[0012] With this configuration, the booster terminal surface and the distributor terminal surface are arranged to face in the same direction, so that the product projection area within the object to which the multi-unit is fixed (e.g., an information distribution board), including the wiring to each terminal, can be reduced, making effective use of limited storage space.

[0013] In one aspect of the present disclosure, the booster holding portion may be configured to rotatably support the booster at an end opposite to the end on which the booster terminal surface is formed. According to this configuration, the booster can be positioned at an angle that makes wiring easier, improving workability.

[0014] In one aspect of the present disclosure, when the multi-unit is attached to a fixed object to which it is fixed, the surface of the multi-unit that contacts the fixed object serves as the mounting surface, and the distributor holding portion may be configured to support the distributor so that the distributor terminal surface can freely rotate between a state perpendicular to the mounting surface and a state parallel to the mounting surface.

[0015] According to this configuration, the distributor can be positioned at an angle that makes wiring easier, improving workability. In one embodiment of the present disclosure, the distributor may include one or more reinforcing protrusions protruding from a surface opposite to the distributor terminal surface. The connecting portion may include a guide portion formed along a path along which the reinforcing protrusions move when the distributor is rotated.

[0016] This configuration can suppress rattling when the distributor rotates. In addition, it can suppress the application of unnecessary torque in a direction different from the rotation direction when wiring the distributor, thereby improving the durability of the device.

[0017] In one aspect of the present disclosure, when the multi-unit is attached to a fixed object to which it is fixed, the surface of the multi-unit that contacts the fixed object serves as the mounting surface, and the booster holding portion may be configured to hold the booster on the side opposite the mounting surface, sandwiching the power supply unit held in the power supply holding portion, or between the power supply unit held in the power supply holding portion and the mounting surface.

[0018] According to such a configuration, the projection area of ​​the multi-unit onto the object to be fixed can be reduced, and the space within the object to be fixed can be used effectively. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is an explanatory diagram illustrating an example of the arrangement of each device in an information distribution board. [Diagram 2] FIG. 2 is a perspective view showing the overall configuration of a multi-unit for an information distribution board. [Diagram 3] FIG. 2 is a perspective view showing the appearance of a power supply unit. [Figure 4] FIG. 2 is a perspective view showing the appearance of the booster. [Diagram 5] FIG. 2 is a perspective view showing the appearance of a distributor. [Figure 6] FIG. 4 is a perspective view showing the appearance of a connecting portion. [Figure 7] 13 is a perspective view showing a state in which the power supply unit is held by the power supply holding unit of the connecting portion. FIG. [Figure 8] 13 is an explanatory diagram showing a structure for attaching and detaching a booster to a connecting portion. FIG. [Figure 9] 13 is an explanatory diagram showing a structure for holding a booster attached to a connecting portion in a stored position. FIG. [Figure 10] 13 is an explanatory diagram showing how to use the booster attached to the connecting portion. FIG. [Figure 11] 10A to 10C are explanatory diagrams showing how to attach and detach the distributor to the connecting part, and how to use the distributor attached to the connecting part. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. [1. Overall composition] As shown in Fig. 1, the multi-unit for information distribution board (hereinafter, multi-unit) 1 of this embodiment is a device that is attached to an information distribution board 100 of an apartment building and used to amplify and distribute a signal to be received in common. In addition to the multi-unit 1, the information distribution board 100 may house a power outlet 2, a HUB 3, a power unit 4, and the like. Signal lines connected to devices installed in the information distribution board 100 are introduced or led out through wiring holes 101 provided in the information distribution board 100. Note that the information distribution board 100 shown in Fig. 1 is shown in a state where a box-shaped cover configured to cover the entire device mounting surface 100a on which devices such as the multi-unit 1 are mounted is removed.

[0021] As shown in FIGS. 2 to 7, the multi-unit 1 includes a booster 10, a distributor 20, a power supply unit 30, and a connection unit 40. [2.Power supply section] 3, the power supply unit 30 has a rectangular parallelepiped power supply case 31 that houses a circuit board on which a power supply circuit and the like are mounted. One side surface (hereinafter, power supply unit terminal surface) 31a of the power supply case 31 is provided with a first power supply terminal 32 and a second power supply terminal 33. A power cable 34 having a power plug at its tip that is connected to an external power supply (e.g., a commercial power supply) is connected to the power supply unit terminal surface 31a.

[0022] 3, the direction in which the power supply unit terminal surface 31a of the power supply case 31 is located is the downward direction, and the opposite side is the upward direction. The direction in which the surface that comes into contact with the fixed object when the power supply case 31 is fixed to the fixed object is located is the rearward direction, and the opposite side is the forward direction. When viewed from the forward direction, the direction perpendicular to the up-down direction and the front-rear direction is the left-right direction.

[0023] The power cable 34 is disposed near the right end of the power supply terminal surface 31a, and the first power supply terminal 32 and the second power supply terminal 33 are disposed toward the left end of the power supply terminal surface 31a. The first power supply terminal 32 is a terminal for outputting DC power to be supplied to the booster 10. An RF signal amplified by the booster 10 may be input to the first power supply terminal 32. The second power supply terminal 33 is a terminal for outputting an RF signal separated by removing a DC component from a signal applied to the first power supply terminal 32. Both the first power supply terminal 32 and the second power supply terminal 33 have a structure as a receptacle of an F-type connector. Each receptacle may be formed with a male thread for screwing into an F-type plug connector.

[0024] The circuit board housed in the power supply case 31 has a power supply function of converting AC power input via the power cable 34 into DC power and outputting it from the first power supply terminal 32. The circuit board housed in the power supply case 31 may have a signal extraction function of removing the DC component for power supply from the signal applied to the first power supply terminal 32, extracting an RF signal, and outputting it from the second power supply terminal 33. However, in this embodiment, only the power supply function is used. In other words, the first power supply terminal 32 is used only for outputting the supply power, and the second power supply terminal 33 is unused.

[0025] Sloping portions 31b, 31c are provided near the upper left end and lower right end on the front surface of the power supply case 31. The sloped portions 31b, 31c are structured to position the portions for engaging locking pieces 541, 551 of the connecting portion 40, which will be described later, rearward of the front surface of the power supply case 31, so that the tips of the locking pieces 541, 551 do not protrude beyond the front surface of the power supply case 31.

[0026] [3. Booster] 4, the booster 10 has a rectangular parallelepiped booster case 11 that houses a circuit board on which a high-frequency circuit such as an amplifier circuit is mounted. The booster case 11 is a shielded case made of metal (for example, aluminum). A first input terminal 12, a second input terminal 13, a monitor terminal 14, and a signal output terminal 15 are provided on one side surface (hereinafter, booster terminal surface) 11a of the booster case 11.

[0027] 4, in the booster case 11, the direction in which the booster terminal surface 11a is located is referred to as the upper direction, and the opposite side is referred to as the lower direction. When the booster case 11 is held by the connecting portion 40, the direction in which the surface in contact with the power supply unit 30 also held by the connecting portion 40 is located is referred to as the rear direction, and the opposite side is referred to as the front direction. When viewed from the front direction, the direction perpendicular to the up-down direction and the front-rear direction is referred to as the left-right direction.

[0028] On the booster terminal surface 11a, the terminals 12 to 15 are arranged in the order of the first input terminal 12, the second input terminal 13, the monitor terminal 14, and the signal output terminal 15 from the right end to the left end. A power input terminal 16 is provided on the right end of the surface (hereinafter, the lower terminal surface) 11b located in the lower direction of the booster case 11. The first input terminal 12, the second input terminal 13, the monitor terminal 14, the signal output terminal 15, and the power input terminal 16 all have a structure as a receptacle of an F-type connector. Each receptacle may be formed with a male screw for screwing into an F-type plug connector.

[0029] The first input terminal 12 is a terminal for inputting a broadcast signal from a UHF antenna or a CATV broadcast signal. The second input terminal 13 is a terminal for inputting a broadcast signal from a BS / CS antenna. The signal output terminal 15 is a terminal for outputting an RF signal generated by amplifying and mixing the input signal from the first input terminal 12 and the input signal from the second input terminal 13. The monitor terminal 14 is a terminal for monitoring the signal level of the RF signal output from the signal output terminal 15. In FIG. 4, the monitor terminal 14 is shown in a state where a cap CP is attached to protect the terminal when not in use.

[0030] The power supply input terminal 16 is a terminal for inputting DC power supplied from a first power supply terminal 32 of the power supply unit 30 . The high frequency circuit housed in booster case 11 of booster 10 operates on DC power supplied via power input terminal 16 .

[0031] The high frequency circuit housed in the booster case 11 has a function of amplifying the input signals from the first input terminal 12 and the second input terminal 13, a function of mixing the two amplified signals to generate one RF signal, and a function of branching the generated RF signal into two and outputting them from the signal output terminal 15 and the monitor terminal 14. The high frequency circuit housed in the booster case 11 may have a function of supplying DC power via the first input terminal 12 and the second input terminal 13 to devices to which these terminals 12, 13 are connected.

[0032] An engagement protrusion 17 and a shaft end protrusion 18 are provided on each of the left and right side surfaces (hereinafter, booster side surfaces) 11c, 11d of the booster case 11. Although not shown in Fig. 4, the engagement protrusion 17 and the shaft end protrusion 18 on the booster side surface 11d are provided at a position facing the engagement protrusion 17 and the shaft end protrusion 18 on the booster side surface 11c.

[0033] The shaft end projection 18 is a projection that becomes the shaft end of the rotation shaft when the booster 10 is rotatably supported by the connecting portion 40. The shaft end projection 18 is formed at the lower end and rear end of the booster side surfaces 11c, 11d. The shaft end projection 18 is formed in a cylindrical shape and has an inclined portion 18a formed by cutting out a portion located on the front side of the booster case 11 at an angle.

[0034] The engagement protrusion 17 is a protrusion for holding the booster 10, which is supported rotatably relative to the connecting portion 40, at a determined angular position. The engagement protrusion 17 is formed on the booster side surfaces 11c, 11d, closer to the upper end than the center in the vertical direction and near the center in the front-rear direction. The engagement protrusion 17 is a quadrangular prism-shaped protrusion with a chamfered portion that comes into contact with an object that moves in the vertical direction along the booster side surfaces 11c, 11d. In other words, the engagement protrusion 17 is formed in a shape that allows an object that comes into contact with the engagement protrusion 17 to easily climb over it.

[0035] A protrusion 19 is provided near the upper end of the booster side surface 11d to which a ground terminal E is attached using a screw. The ground terminal E is a terminal for connecting the ground line of the circuit housed in the booster case 11 to an external ground.

[0036] [4.Distributor] As shown in Fig. 5, the distributor 20 has a rectangular parallelepiped distributor case 21 that houses a power distribution circuit. The distributor case 21 has a distributor input terminal 22 and a plurality of distributor output terminals 23 on one side surface (hereinafter, distributor terminal surface) 21a. The distributor input terminal 22 and the plurality of distributor output terminals 23 each have a structure as a receptacle of an F-type connector. Each receptacle may be formed with a male thread for screwing with an F-type plug connector.

[0037] The distributor input terminal 22 is a terminal for inputting an RF signal supplied from the signal output terminal 15 of the booster 10, etc. The multiple distributor output terminals 23 are terminals for individually outputting the RF signal that is input from the distributor input terminal 22 and has been power-distributed to multiple parts by the power distribution circuit.

[0038] 5, the direction in which the distributor terminal surface 21a is located is referred to as the upper direction, and the opposite direction is referred to as the lower direction in the distributor case 21. The longitudinal direction of the distributor terminal surface 21a is referred to as the left-right direction, and the lateral direction of the distributor terminal surface 21a is referred to as the front-rear direction.

[0039] The distributor 20 has a plurality of reinforcing protrusions 24 on a surface (hereinafter, distributor lower surface) 21b located on the lower side of the distributor case 21. Here, a total of two reinforcing protrusions 24 are provided, one on each of the front end and left and right ends of the distributor lower surface 21b. Each reinforcing protrusion 24 is formed with a fixing hole 24a. The fixing hole 24a is used when the distributor 20 is used independently without being integrated with the multi-unit 1, and the distributor 20 is directly fixed to an external object such as an information distribution board 100 by screwing or the like.

[0040] Each of the faces (hereinafter, distributor side faces) 21c, 21d located at the left and right ends of the distributor case 21 is provided with a shaft end protrusion 25 and an engagement protrusion 26. Although not shown in Fig. 5, the shaft end protrusion 25 and the engagement protrusion 26 on the distributor side face 21d are provided at a position facing the shaft end protrusion 25 and the engagement protrusion 26 on the distributor side face 21c.

[0041] The shaft end projection 25 is a projection that becomes the shaft end of the rotation shaft when the distributor 20 is rotatably supported by the connecting portion 40. The shaft end projection 25 is formed near the front ends of the distributor side surfaces 21c, 21d, i.e., on the upper part of the reinforcing projection 24. The shaft end projection 25 has a shape in which a cylindrical projection is formed by removing the outside of parallel lines that are symmetrical about the center of a circle and spaced apart narrower than the diameter of the circle.

[0042] The engagement protrusion 26 is a protrusion that is used to hold the distributor 20, which is rotatably supported by the connecting portion 40, at a determined angular position. The engagement protrusion 26 is a semi-spherical protrusion, and is located behind the shaft end protrusion 25.

[0043] [5.Connection part] 6, the connecting portion 40 includes a power supply holding portion 50, a booster holding portion 60, and a distributor holding portion 70. The connecting portion 40 may be integrally molded from a synthetic resin.

[0044] [5-1. Power supply holding part] 6 and 7, the power supply holding unit 50 includes a back plate 51, side wall bases 52 and 53, an upper wall 54, and a lower wall 55, and forms a box-shaped storage space with one open side. The power supply unit 30 is held in this box-shaped storage space.

[0045] 6 and 7, the direction in which the side wall bases 52, 53 are aligned is the left-right direction, the direction in which the upper wall portion 54 and the lower wall portion 55 are aligned is the up-down direction, and the direction perpendicular to the left-right direction and the up-down direction is the front-rear direction. The box-shaped storage space of the power supply holding unit 50 has a structure that opens forward.

[0046] The front ends of the side wall bases 52, 53, the upper wall portion 54, and the lower wall portion 55 are formed so as to be substantially flush with the front surface of the power supply unit 30 housed in the power supply holding portion 50 (hereinafter, housed power supply unit). Returning to FIG. 6, the upper wall portion 54 has a first locking piece 541, and the lower wall portion 55 has a second locking piece 551. The first locking piece 541 is provided near the left end of the upper wall portion 54, and the second locking piece 551 is provided near the right end of the lower wall portion 55. The first locking piece 541 and the second locking piece 551 are both tongue-shaped portions with a protrusion at the tip that protrudes toward the storage space. The first locking piece 541 and the second locking piece 551 detachably hold the stored power source unit 30 so that it does not fall off from the power source holding portion 50 by engaging the protrusion with the inclined portions 31b and 31c formed on the front surface of the stored power source unit 30.

[0047] The bottom wall 55 has a first cutout 55a and a second cutout 55b. The first cutout 55a is a portion provided for exposing the first power supply terminal 32 and the second power supply terminal 33 of the stored power supply unit 30 below the bottom wall 55. The second cutout 55b is a portion provided for leading the power cable 34 extending from the stored power supply unit 30 below the bottom wall 55.

[0048] [5-2. Booster holding section] As shown in FIG. 6, the booster holding portion 60 includes front additional portions 61a and 61b. The front additional portions 61a and 61b are provided to protrude from the front of the side wall base portions 52 and 53, and are located from the center of the side wall base portions 52 and 53 in the vertical direction to the lower end. The booster 10 is held between the front additional portions 61a and 61b. In the front additional portions 61a and 61b, the opposing sides are called the inner wall, and the opposite sides are called the outer wall. The front additional portions 61a and 61b have a symmetrical shape. In the following description, when there is no particular distinction between the two, they will be referred to as the front additional portion 61.

[0049] The front addition portion 61 includes a long hole 611 , a guide groove 612 , a first locking portion 613 , and a second locking portion 614 . 6 and 8, the long hole 611 is formed to penetrate the front additional portion 61 in the left-right direction. The shaft end projection 18 of the booster 10 is inserted into the long hole 611. The long hole 611 supports the booster 10 so as to be rotatable.

[0050] The introduction groove 612 is formed on the inner wall of the front additional portion 61, and is formed in the front-rear direction from the front surface of the front additional portion 61 to the upper end of the long hole 611. The groove depth of the introduction groove 612 is set to be approximately the same as or slightly larger than the protrusion amount of the shaft end projection 18 of the booster 10, and the groove width of the introduction groove 612 is set to be approximately the same as or slightly larger than the diameter of the shaft end projection 18. In addition, a protrusion 612a is provided in the introduction groove 612 at the boundary with the long hole 611.

[0051] That is, when the booster 10 is attached to the booster holding part 60, the shaft end projection 18 moves along the introduction groove 612 and reaches the long hole 611 by climbing over the protruding strip 612a. In addition, in a state where the booster 10 is arranged so that the shaft end projection 18 is located at the upper end of the long hole 611, the booster 10 is moved forward, i.e., toward the introduction groove 612, so that the booster 10 is removed from the booster holding part 60. Since the shaft end projection 18 is provided with the inclined portion 18a, the shaft end projection 18 can easily climb over the protruding strip 612a when removed. In this way, the booster 10 is configured to be freely attached to and detached from the booster holding part 60.

[0052] As shown in Figures 6 and 9, the first locking portion 613 is a recess formed in the inner wall at the upper end and rear end of the front additional portion 61. The depth of the recess is formed to be approximately the same as or slightly greater than the protrusion amount of the engagement protrusion 17 of the booster 10. The first locking portion 613 has a shape that is recessed toward the upper surface from the upper surface of the front additional portion 61 so that the engagement protrusion 17 can enter, and a protrusion 613a is provided along the upper surface. The height of the protrusion 613a is set to be smaller than the depth of the recess formed by the first locking portion 613.

[0053] As shown in FIG. 6, the second locking portion 614 is a groove-shaped portion formed on the upper surface of the front additional portion 61, and is formed so as to penetrate therethrough in the left-right direction. Here, it is assumed that the booster 10 is disposed so that the shaft end projection 18 is attached to the long hole 611 and is positioned at a position where the shaft end projection 18 contacts the upper end of the long hole 611 (hereinafter, the movable position). In this state, as shown in the second and third forms in Fig. 10, the engagement projection 17 of the booster 10 is positioned above the upper end of the front addition part 61 (front addition part 61b in Fig. 10). In other words, when the shaft end projection 18 is in the movable position, the booster 10 held by the booster holding part 60 is in a state in which it can be rotated relative to the connecting part 40 with the shaft end projection 18 as an axis.

[0054] As shown in the second mode of FIG. 10, it is assumed that the shaft end projection 18 is in the movable position and the rear surface of the booster 10 is in contact with the front surface of the power supply unit 30 housed in the connecting unit 40. The booster 10 is moved from this state to a position where the shaft end projection 18 is in contact with the lower end of the long hole 611 (hereinafter, the immobile position). Then, the engagement projection 17 of the booster 10 moves over the protrusion 613a and into the recess formed by the first locking portion 613, and the state shown in the first mode of FIG. 10 is obtained. The position of the booster 10 at this time is called the booster storage position. In the booster storage position, the engagement projection 17 engages with the step portion of the first locking portion 613, thereby preventing the booster 10 from rotating. In other words, the booster 10 is held in the booster storage position.

[0055] As shown in the third mode in FIG. 10, it is assumed that the shaft end projection 18 is in the movable position and the booster 10 is tilted at an angle where the engagement projection 17 faces the second locking portion 614. When the booster 10 is moved downward from this state, the engagement projection 17 fits into the groove of the second locking portion 614 as shown in the fourth mode in FIG. 10. The position of the booster 10 at this time is called the booster working position. At the booster working position, the engagement projection 17 engages with the groove formed by the second locking portion 614, thereby preventing the booster 10 from rotating. In other words, the booster 10 is held at the booster working position.

[0056] The booster 10 is normally held in the booster storage position. During wiring work or maintenance and inspection, the work is performed while the booster 10 is held in the booster work position, and when the work is completed, the booster 10 is returned to the booster storage position and held there.

[0057] [5-3.Distributor holding part] 6 and 7, the distributor holding portion 70 includes upper additional portions 71a, 71b and guide walls 72a, 72b. The upper additional portions 71a, 71b are installed on both the left and right ends of the upper wall portion 54 located above the power supply holding portion 50. The distributor 20 is held between the upper additional portions 71a, 71b. In the upper additional portions 71a, 71b, the opposing sides are called inner walls, and the opposite sides are called outer walls.

[0058] The guide walls 72a, 72b are disposed at positions spaced apart by the width of the reinforcing projection 24 of the distributor 20 from the inner walls of the upper additional portions 71a, 71b, respectively. The upper additional portions 71a and 71b have a symmetrical shape. In the following, unless there is any particular distinction between the two, they will be referred to as upper additional portion 71. The guide walls 72a and 72b also have a symmetrical shape. In the following, unless there is any particular distinction between the two, they will be referred to as guide wall 72.

[0059] The upper additional portion 71 includes a bearing hole 711 , a first locking hole 712 , and a second locking hole 713 . The bearing hole 711 is a circular hole that has approximately the same diameter as the maximum diameter of the shaft end projection 25 of the distributor 20 and penetrates the upper additional part 71 in the left-right direction. The bearing hole 711 has an opening 711a on the front side that is used when attaching and detaching the shaft end projection 25 to and from the bearing hole 711. The opening 711a is formed to have a width approximately the same as the width of the parallel part of the shaft end projection 25.

[0060] The first locking hole 712 and the second locking hole 713 are formed to a size that allows them to engage with the engaging projection 26 of the distributor 20. The first locking hole 712 and the second locking hole 713 are formed on a path through which the engaging projection 26 passes when the distributor 20 is rotated with the shaft end projection 25 supported by the bearing hole 711.

[0061] Here, a method for attaching and detaching the distributor 20 to the distributor holding portion 70 will be described. 11, the distributor 20 is inserted into the bearing hole 711 through the opening 711a with the vertical direction of the distributor 20 tilted 90 degrees with respect to the vertical direction of the connecting portion 40, that is, with the shaft end projection 25 able to pass through the opening 711a of the bearing hole 711. If the rotational position of the distributor 20 is changed after insertion into the bearing hole 711, the shaft end projection 25 will no longer be able to pass through the opening 711a, and the distributor 20 will be held by the distributor holding portion 70 so as to be freely rotatable.

[0062] When the distributor 20 held by the distributor holding portion 70 is rotated to engage the engagement projection 26 with the first locking hole 712 as shown in the second embodiment of Fig. 11, the position of the distributor 20 is maintained. The position of the distributor 20 at this time is called the distributor working position. The distributor working position may be, for example, a state in which the upward direction of the distributor 20 is inclined at 45° with respect to the upward direction of the connecting portion 40.

[0063] When a force is applied to the distributor 20 in the rotation direction, the engagement between the engagement protrusion 26 and the first locking hole 712 is released and the distributor 20 is further rotated to engage the engagement protrusion 26 with the second locking hole 713 as shown in the third embodiment of Fig. 11, and the position of the distributor 20 is maintained again. The position of the distributor 20 at this time is called the distributor stored position. The distributor stored position may be, for example, a state in which the upward direction of the connecting part 40 and the upward direction of the distributor 20 coincide with each other.

[0064] The distributor 20 is normally held in the distributor storage position. During wiring work or maintenance and inspection, the distributor 20 is held in the distributor work position, and when the work is completed, the distributor 20 is returned to the booster storage position and held there.

[0065] When the distributor 20 held by the distributor holding portion 70 is rotated, the reinforcing protrusion 24 provided on the underside of the distributor 20 moves between the inner wall of the upper additional portion 71 and the guide wall 72. In other words, the inner wall of the upper additional portion 71 and the guide wall 72 are formed along the path along which the reinforcing protrusion 24 moves when the distributor 20 is rotated. This suppresses rattling when the distributor 20 rotates. In addition, torque in a direction different from the rotation direction is suppressed from being applied to the shaft end protrusion 25 and the bearing hole 711 when wiring the distributor 20, etc.

[0066] [6. Usage status] As shown in Fig. 2, in the multi-unit 1, when the booster 10 is held in the booster storage position and the distributor 20 is held in the distributor storage position, the booster terminal surface 11a and the distributor terminal surface 21a face in the same direction and are held on different planes. That is, the booster terminal surface 11a and the distributor terminal surface 21a are arranged in different levels. In addition, both the booster terminal surface 11a and the distributor terminal surface 21a are arranged so as to be perpendicular to the surface of the connecting portion 40 that contacts the device mounting surface 100a of the information distribution board 100.

[0067] In the multi-unit 1, the first power supply terminal 32 of the power supply section 30 and the power supply input terminal 16 of the booster 10 are connected via a coaxial cable C1. In the multi-unit 1, a coaxial cable C2 leading to a UHF antenna or a CATV system is connected to the first input terminal 12 of the booster 10. Although not shown in the figure, a coaxial cable leading to a BS / CS antenna may be connected to the second input terminal 13 of the booster 10.

[0068] In the multi-unit 1, the signal output terminal 15 of the booster 10 and the distributor input terminal 22 of the distributor 20 are connected via a coaxial cable C3. In the multi-unit 1, at least one of the multiple distributor output terminals 23 in the distributor 20 is connected to a coaxial cable C4 leading to each unit in the apartment building.

[0069] The coaxial cables C2 and C4 are wired in the information distribution board 100 through a wiring hole 101 located above the multi-unit 1. In this way, by using the multi-unit 1, the wiring of the coaxial cables C1 to C4 in the information distribution board 100 is performed only in the vertical direction. In other words, the multi-unit 1 is configured so that the wiring of the coaxial cables C1 to C4 does not need to protrude laterally from the multi-unit 1.

[0070] [7. Terminology] In this embodiment, the first input terminal 12 and the second input terminal 13 correspond to the booster input terminal in this disclosure, and the signal output terminal 15 corresponds to the booster output terminal in this disclosure. The shaft end protrusion 18 of the booster 10 corresponds to the booster shaft end protrusion in this disclosure, and the engagement protrusion 17 of the booster 10 corresponds to the booster engagement protrusion in this disclosure. The shaft end protrusion 25 of the distributor 20 corresponds to the distributor shaft end protrusion in this disclosure, and the engagement protrusion 26 of the distributor 20 corresponds to the distributor engagement protrusion in this disclosure. The upper addition portion 71 and the guide wall 72 correspond to the guide portion in this disclosure.

[0071] [8. Effects] The multi-unit 1 described above in detail provides the following effects. (8a) In the multi-unit 1, the booster terminal surface 11a and the distributor terminal surface 21a face the same direction and are arranged so as to be staggered. Therefore, with the multi-unit 1, the product projection area in the information distribution board 100, including the wiring of the coaxial cables C1 to C4, can be minimized, and the limited storage space in the information distribution board 100 can be effectively used.

[0072] (8b) In the multi-unit 1, the booster 10 and the distributor 20 are movable, and the angular positions of the booster terminal surface 11a and the distributor terminal surface 21a can be made different when stored and when working. Therefore, the multi-unit 1 can achieve both ease of wiring work for the booster 10 and the distributor 20 and effective use of storage space in the information distribution board 100.

[0073] (8c) In the multi-unit 1, the booster 10, the distributor 20, and the power supply unit 30 are configured to be detachable. Therefore, the multi-unit 1 can improve ease of maintenance.

[0074] (8d) In the multi-unit 1, when the distributor 20 is rotated, the movement of the reinforcing protrusion 24 formed integrally with the distributor 20 is guided by the inner wall of the upper additional portion 71 and the guide wall 72. Therefore, the multi-unit 1 can suppress rattling when the distributor 20 rotates. Furthermore, the multi-unit 1 can suppress unnecessary torque in a direction different from the rotation direction from being applied to the shaft end protrusion 25 and the bearing hole 711 when wiring to the distributor 20, etc., thereby improving the durability of the device.

[0075] 9. Other Embodiments Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments and can be implemented in various modified forms.

[0076] (9a) In the above embodiment, the booster 10 and the distributor 20 are configured to be held at two locations, namely, the storage position and the working position, respectively, but may be configured to be held at three or more locations.

[0077] (9b) In the above embodiment, in the information distribution board 100, the up-down direction of the connecting portion 40 is aligned with the up-down direction of the information distribution board 100, but the two do not necessarily have to be aligned. Depending on the positions of the power outlet 2 and the wiring hole 101 in the information distribution board 100, the up-down direction of the connecting portion 40 may be aligned with the up-down direction of the information distribution board 100, for example, by 90° or 180° to facilitate wiring.

[0078] (9c) In the above embodiment, the booster 10 is arranged overlapping the front side of the power supply unit 30, but for example, the booster 10 may be arranged so as to be sandwiched between the equipment mounting surface 100a of the multi-unit 1 and the power supply unit 30, or may be arranged to the side of the power supply unit 30.

[0079] (9d) In the above embodiment, a case has been described in which the multi-unit 1 is connected to the information distribution board 100. However, the object to which the multi-unit 1 is attached (i.e., the object to which it is fixed) is not limited to the information distribution board 100.

[0080] [10. Technical Concepts Disclosed in This Specification] [Item 1] a booster configured to amplify and output an input signal; A distributor configured to distribute the power of the signal amplified by the booster to a plurality of signals and output the signals; A power supply unit configured to receive power from an external power supply and generate DC power to be supplied to the booster; a coupling section configured to hold the booster, the distributor, and the power supply section together; Equipped with The booster has a booster case formed in a rectangular parallelepiped shape, one surface of which is a booster terminal surface, and a booster input terminal for inputting the input signal is formed on the booster terminal surface, The distributor has a rectangular parallelepiped-shaped distributor case, one of whose faces is a distributor terminal face, and at least one of a plurality of distributor output terminals for outputting a plurality of signals power-distributed by the distributor is formed on the distributor terminal face; The connecting portion is a power supply holding unit configured to house the power supply unit; a booster holder configured to hold the booster; a distributor holder configured to hold the distributor; and Equipped with The booster holding portion and the distributor holding portion are configured to hold the booster and the distributor so that the booster terminal surface and the distributor terminal surface face in the same direction. Multi-unit.

[0081] [Item 2] The multi-unit according to item 1, The booster holding portion is configured to rotatably support the booster at an end portion opposite to an end portion on which the booster terminal surface is formed. Multi-unit.

[0082] [Item 3] The multi-unit according to item 1 or 2, When the multi-unit is attached to a fixed object, the surface of the multi-unit that comes into contact with the fixed object is defined as a mounting surface, The distributor holding portion is configured to support the distributor so as to be rotatable between a state perpendicular to the mounting surface and a state parallel to the mounting surface. Multi-unit.

[0083] [Item 4] Item 3. The multi-unit according to item 3, The distributor has one or more reinforcing protrusions protruding from a surface opposite to the distributor terminal surface, The connecting portion includes a guide portion formed along a path along which the reinforcing protrusion moves when the distributor is rotated. Multi-unit.

[0084] [Item 5] A multi-unit according to any one of items 1 to 4, When the multi-unit is attached to a fixed object, the surface of the multi-unit that comes into contact with the fixed object is defined as a mounting surface, The booster holding portion is configured to hold the booster on the opposite side to the mounting surface across the power supply unit housed in the power supply holding portion, or between the power supply unit housed in the power supply holding portion and the mounting surface. Multi-unit.

[0085] This specification further discloses the following technical ideas. [Item 6] A multi-unit according to any one of items 1 to 6, The booster terminal surface and the distributor terminal surface are configured to be located on different planes. Multi-unit. According to this configuration, the booster terminal surface and the distributor terminal surface are arranged at different levels, which makes it easy to wire to each terminal.

[0086] [Item 7] A multi-unit according to any one of items 1 to 6, When the multi-unit is attached to a fixed object, the surface of the multi-unit that comes into contact with the fixed object is defined as a mounting surface, The connecting portion is configured to hold the booster and the distributor so that both the booster terminal surface and the distributor terminal surface are perpendicular to the mounting surface. Multi-unit. According to this configuration, since the cables are routed along the mounting surface, the space required to store the multi-unit in the height direction from the mounting surface can be kept to a minimum.

[0087] [Item 8] The multi-unit according to item 2, The booster comprises: A booster shaft end protrusion that forms a shaft end of a shaft that rotates the booster; A booster engagement protrusion that engages with the connecting portion; Further comprising: The booster holding portion is a slot for supporting the booster shaft end projection; a plurality of locking portions configured to hold the booster at a rotational position of a predetermined angle by engaging with the booster engagement projection when the booster shaft end projection is in a fixed position that is one end of the long hole, and to release the engagement with the booster engagement projection when the booster shaft end projection is in a movable position opposite to the fixed position, thereby allowing the booster to be freely rotated; Further comprising: Multi-unit. According to this configuration, the booster can be held in a desired rotational position, and the ease of wiring work, maintenance work, and the like can be further improved.

[0088] [Item 9] Item 9. The multi-unit according to item 8, The booster holding portion further includes an introduction groove that introduces the booster shaft end protrusion from the outside of the connecting portion into the long hole. Multi-unit. With this configuration, the booster can be easily attached to and detached from the booster holding portion, improving ease of maintenance.

[0089] [Item 10] Item 5. The multi-unit according to item 4, The reinforcing protrusion has a fixing hole formed therein for fixing the distributor to an external object when the distributor is detached from the connecting portion and used alone. Multi-unit. According to such a configuration, it is possible to flexibly respond to the conditions of the object to which the device is to be fixed, such as an information distribution board.

[0090] [Item 11] The multi-unit according to item 3 or 4, The distributor includes a distributor shaft end protrusion that forms a shaft end of a shaft that rotates the distributor, The distributor holding portion has a circular bearing hole that rotatably supports the shaft end projection, The distributor shaft end protrusion has a shape obtained by removing the outside of a cylindrical protrusion by parallel lines that are symmetrical about the center of a circle and spaced apart from each other by a narrower distance than the diameter of the circle, The peripheral portion of the bearing hole is further provided with an opening having a width of the parallel portion of the distributor shaft end protrusion extending from the outside of the connecting portion to the bearing hole. Multi-unit. According to this configuration, the distributor can be easily attached to and detached from the distributor holding portion, thereby improving ease of maintenance. [Explanation of symbols]

[0091] 1...Multi-unit for information distribution board, 10...Booster, 11...Booster case, 11a...Booster terminal surface, 11c, 11d...Booster side, 12...First input terminal, 13...Second input terminal, 14...Monitor terminal, 15...Signal output terminal, 16...Power input terminal, 17, 26...Engagement protrusion, 18, 25...Axial end protrusion, 18a...Inclined portion, 19...Convex portion, 20...Distributor, 21...Distributor case, 21a...Distributor terminal surface, 21b...Distributor lower surface, 21c, 21d...Distributor side, 22...Distributor input terminal, 23...Distributor output terminal, 24...Reinforcement protrusion, 24a...Fixing hole, 30...Power supply unit, 31...Power supply case, 31a...Power supply unit terminal surface, 31b, 31c...Inclined portion, 32...first power terminal, 33...second power terminal, 34...power cable, 40...connecting portion, 50...power supply holding portion, 51...rear panel, 52, 53...side wall base portion, 54...upper wall portion, 55...lower wall portion, 55a...first notch portion, 55b...second notch portion, 60...booster holding portion, 61 (61a, 61b)...front addition portion, 70...distributor holding portion, 71 (71a, 71b)...upper additional portion, 72 (72a, 72b)...guide wall, 541...first locking piece, 551...second locking piece, 611...long hole, 612...guiding groove, 612a, 613a...protrusion, 613...first locking portion, 614...second locking portion, 711...bearing hole, 711a...opening, 712...first locking hole, 713...second locking hole.

Claims

1. a booster configured to amplify and output an input signal; A distributor configured to distribute the power of the signal amplified by the booster to a plurality of signals and output the signals; A power supply unit configured to receive power from an external power supply and generate DC power to be supplied to the booster; a coupling section configured to hold the booster, the distributor, and the power supply section together; Equipped with The booster has a booster case formed in a rectangular parallelepiped shape, one surface of which is a booster terminal surface, and a booster input terminal for inputting the input signal is formed on the booster terminal surface, The distributor has a rectangular parallelepiped-shaped distributor case, one surface of which is a distributor terminal surface, and at least one of a plurality of distributor output terminals for outputting a plurality of signals power-distributed by the distributor is formed on the distributor terminal surface; The connecting portion is a power supply holding unit configured to hold the power supply unit; a booster holder configured to hold the booster; a distributor holder configured to hold the distributor; and Equipped with The booster holding portion and the distributor holding portion are configured to hold the booster and the distributor so that the booster terminal surface and the distributor terminal surface face in the same direction. Multi-unit.

2. 2. The multi-unit of claim 1, The booster holding portion is configured to rotatably support the booster at an end portion opposite to an end portion on which the booster terminal surface is formed. Multi-unit.

3. 2. The multi-unit of claim 1, When the multi-unit is attached to a fixed object, the surface of the multi-unit that comes into contact with the fixed object is defined as a mounting surface, The distributor holding portion is configured to support the distributor so as to be rotatable between a state perpendicular to the mounting surface and a state parallel to the mounting surface. Multi-unit.

4. 4. The multi-unit according to claim 3, The distributor includes one or more reinforcing protrusions protruding from a surface opposite to the distributor terminal surface, The connecting portion includes a guide portion formed along a path along which the reinforcing protrusion moves when the distributor is rotated. Multi-unit.

5. 2. The multi-unit of claim 1, When the multi-unit is attached to a fixed object, the surface of the multi-unit that comes into contact with the fixed object is defined as a mounting surface, The booster holding portion is configured to hold the booster on the opposite side to the mounting surface across the power supply unit held in the power supply holding portion, or between the power supply unit held in the power supply holding portion and the mounting surface. Multi-unit.

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