JP2005020840A - Branching unit for wiring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a branching unit or wiring capable of connecting universal products with high flexibility in wiring design. <P>SOLUTION: A blanching unit 21 for wiring comprises a power supply line connectors 27 and 27 comprising a power supply line connector for a power supply line and an electric connector for other units, receptacles 28, 28 comprising a receptacle 48 for universal products and an electric connector for other units, a main frame 29 in which the power supply connectors 27 and 27 and receptacles 28 and 28 are housed while electrically connected through the electric connector with the power supply line connector and the receptacle 48 being exposed from a window 57, and a main cover 30 attached to the main frame 29. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring branch unit for branching a power line (power cable) suitable for, for example, underfloor wiring.
[0002]
[Prior art]
A joint box 1 as shown in FIG. 14 is known as this type (see, for example, Patent Document 1). The joint box 1 includes a unit main body 2, a power line connection part 3 for a receiving part, a power line connection part 4 for a feeding part, and a plurality of branch connection parts 5. A power line 6 is connected to the power line connecting part 3. The power supply line connecting portion 4 is connected to a power supply line 7 serving as a feed wiring. On the other hand, a dedicated harness plug 9 is provided at the end of the branch line 8 branched from the joint box 1. The dedicated harness plug 9 and the branch connection portion 5 are configured to be connected in a state like a connector connection.
[0003]
[Patent Document 1]
Japanese Patent No. 3310492 (page 2-3, Fig. 1-2)
[0004]
[Problems to be solved by the invention]
By the way, in the above prior art, since only the dedicated harness plug 9 is allowed to be connected to the branch connection portion 5, a general-purpose OA tap or the like cannot be connected.
[0005]
Further, since the power supply line connecting portions 3 and 4 and the plurality of branch connecting portions 5 are integrated with the unit body 2, when the joint box 1 is installed under the floor or the like, the directivity of the joint box 1 is increased. As a result, it was very difficult to draw out the power supply line 7 and the branch line 8 in the necessary directions.
[0006]
This invention is made | formed in view of the situation mentioned above, and makes it a subject to provide the branch unit for wiring which can connect a general purpose product and has a high freedom degree of wiring design.
[0007]
[Means for Solving the Problems]
The wiring branch unit of the present invention according to claim 1, which has been made to solve the above-mentioned problems, includes one or a plurality of power line connecting units having a power line connecting part for a power line and an electric connecting part for another unit, and a general-purpose product. One or a plurality of outlet connection units having an electrical outlet to the electrical outlet and other units, a state in which the power line connection unit and the electrical outlet connection unit are electrically connected via the electrical connection part, and the power source. And a main body frame having a substantially frame shape that is housed in a state in which the wire connection portion and the outlet are exposed from a plurality of window portions, respectively.
[0008]
A wiring branch unit according to a second aspect of the present invention is the wiring branch unit according to the first aspect, wherein the power supply line connection unit and the outlet connection unit are detachable from the main body frame. It is characterized by the formation.
[0009]
A wiring branch unit according to a third aspect of the present invention is the wiring branch unit according to the second aspect, wherein a rail-like coupling protrusion is provided on any one of the power line connection unit, the outlet connection unit, and the main body frame. And a guide portion for guiding the coupling protrusion is formed on one of the other.
[0010]
A wiring branch unit according to a fourth aspect of the present invention is the wiring branch unit according to the second aspect, wherein the wiring branch unit is attached to the main body frame and regulates attachment / detachment of the power line connection unit and the outlet connection unit. It further has a main body cover.
[0011]
A wiring branch unit according to a fifth aspect of the present invention is the wiring branch unit according to any one of the first to fourth aspects, wherein the electrical connection portion includes a unit coupling groove formed in a unit case, and the unit. The bus bar contact portion of the bus bar is housed in the case and exposed from the unit coupling groove.
[0012]
The wiring branch unit of the present invention according to claim 6, which has been made to solve the above-mentioned problems, has a power supply line connection section for a power supply line, and a power supply line holding section that is provided in the power supply line connection section and holds the connection state of the power supply line. One or a plurality of power line connection units having an electrical connection to the lock and other units, one or a plurality of outlet connection units having a power outlet for general-purpose products and an electrical connection to the other units, and the power line connection units And a substantially frame-shaped main body frame that is housed in a state where the outlet connection unit is electrically connected via the electric connection portion, and the power line connection portion and the outlet are exposed from a plurality of windows, respectively. And attached to the main body frame to regulate the attachment and detachment of the power line connection unit and the outlet connection unit, and A body cover shaped substantially cover for pressing the locking source wire holding is characterized by being configured with a.
[0013]
According to the first aspect of the present invention, the wiring branch unit includes one or a plurality of power line connection units and outlet connection units, and a main body frame for housing them. A power line is connected to the power line connecting unit having the power line connecting section through the power line connecting section. In addition, a general-purpose product is connected to the outlet connection unit having the outlet through the outlet. On the other hand, the power supply line connection unit and the outlet connection unit are accommodated in the main body frame in an electrically connected state. Further, the power supply line connecting portion and the outlet are stored in a state where they are exposed from the plurality of window portions. The electrical connection between the power line connection unit and the outlet connection unit is performed through the electrical connection portion of each unit. Since the branching unit for wiring of the present invention includes an outlet connection unit in its configuration, it can be connected to a general-purpose product, and since it includes a unit-type power line connection unit and an outlet connection unit, the degree of freedom in wiring design Becomes higher.
[0014]
According to the second aspect of the present invention, since the power line connection unit and the outlet connection unit are detachable, the necessary number of power line connection units and outlet connection units are required for the main body frame. Stored in the direction.
[0015]
According to the third aspect of the present invention, the coupling protrusion and the guide portion are formed in order to facilitate attachment / detachment of the power supply line connection unit and the outlet connection unit to the main body frame.
[0016]
According to the fourth aspect of the present invention, the wiring branch unit of the present invention is configured by further including a main body cover. When the main body cover is attached to the main body frame, the attachment / detachment of the power line connection unit and the outlet connection unit is restricted. In particular, the main body cover prevents the power line connecting unit and the outlet connecting unit from coming off. This also maintains the power distribution in a stable state.
[0017]
According to the present invention described in claim 5, each unit is electrically connected by contact between the bus bar contact portions exposed in the unit coupling groove. The electrical connection of each unit is simplified, and the construction time of the wiring branch unit is shortened. Since the bus bar contact portion is in the unit coupling groove, safety at the time of connection is also ensured.
[0018]
According to the sixth aspect of the present invention, one or a plurality of power line connection units and outlet connection units, a main body frame for housing them, and a main body cover attached to the main body frame are provided for wiring. A branch unit is configured. A power line is connected to the power line connecting unit having the power line connecting section through the power line connecting section. In addition, a general-purpose product is connected to the outlet connection unit having the outlet through the outlet. On the other hand, the power supply line connection unit and the outlet connection unit are accommodated in the main body frame in an electrically connected state. Further, the power supply line connecting portion and the outlet are stored in a state where they are exposed from the plurality of window portions. The electrical connection between the power line connection unit and the outlet connection unit is performed through the electrical connection portion of each unit. On the other hand, a main body cover is attached to the main body frame in which the power line connection unit and the outlet connection unit are stored. When the main body cover is attached, in particular, detachment of the power line connecting unit and the outlet connecting unit is prevented. This also maintains the power distribution in a stable state. Further, the power line holding lock of the power line connecting unit is pressed by the cover, and the connection state of the power lines is held.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory diagram of a usage state showing an embodiment of a wiring branch unit of the present invention. 2 is a perspective view of the branching unit for wiring, FIG. 3 is an exploded perspective view of the branching unit for wiring, FIG. 4 is a perspective view of the rear side of the unit, and FIG. 5 is a perspective view of a state in which the units are electrically connected. 6 is a connection state explanatory diagram of each unit, FIG. 7 is a perspective view of the power supply line connection unit, FIG. 8 is a perspective view of conductors constituting the power supply line connection unit, and FIG. 9 is a connection state description of the power supply line and the conductor. FIG. 10 is a perspective view of the outlet connection unit, and FIG. 11 is an exploded perspective view of a conductor constituting the outlet connection unit.
[0020]
In FIG. 1, reference numeral 21 denotes a branching unit for wiring according to the present invention for branching a power line (power cable: VVF cable). In the case of the branching unit 21 for wiring in FIG. 1, a power line 22, a power line 23 serving as a feed wiring, and general-purpose OA taps 24 and 24 are connected to each other. In the terminals of the codes 25 and 25 of the OA taps 24 and 24, known universal plugs 26 and 26 (only one is shown) are provided. The wiring branch unit 21 of the present invention can be connected to general-purpose products such as the OA taps 24 and 24 and is configured to increase the degree of freedom in wiring design, as will be described later.
[0021]
2 and 3, the wiring branch unit 21 includes two power line connection units 27 and 27, two outlet connection units 28 and 28, and a main body frame 29 for housing these four units. And a main body cover 30 attached to the main body frame 29. Further, the wiring branch unit 21 includes power supply line connection units 27 and 27 and outlet connection units 28 and 28 that are detachable from the main body frame 29. The power line connection units 27 and 27 are units for connection to the power lines 22 and 23, and the outlet connection units 28 and 28 are units for connection to the OA taps 24 and 24. Details of these will be described later.
[0022]
In FIG. 4, the power line connection units 27 and 27 and the outlet connection units 28 and 28 respectively have a pair of electrical connection portions 31 and 31 common to the units. The electrical connection portions 31, 31 are configured to include a plurality of unit coupling grooves 32 and bus bar contact portions 33 (see FIG. 6) exposed in the unit coupling grooves 32. The electrical connection portions 31 are provided at the rear portion of each unit.
[0023]
The electrical connecting portions 31 and 31 are formed so that the arrangement of the plurality of unit coupling grooves 32 differs between one and the other. That is, as shown in FIG. 5, the power supply line connection units 27 and 27 and the outlet connection units 28 and 28 are arranged and formed so that the upper surfaces and the lower surfaces of the power supply connection units 27 and 27 and the lower surfaces can be coupled to each other.
[0024]
In this embodiment, the outlet connection units 28, 28 are arranged on both sides of the power line connection unit 27, in other words, the units are arranged so that the power line connection units 27, 27 are coupled on both sides of the outlet connection unit 28. However, this is not the case (described later).
[0025]
In the present embodiment, four units are arranged in a quadrangular shape as shown in FIG. 5 to form a connection, but this is not restrictive. That is, since each unit has the electrical connection parts 31, 31, it is assumed that five or six units can be coupled to each other. This means that the main body frame and the main body cover corresponding to the number of units need only be set separately.
[0026]
When the power supply line connection units 27 and 27 and the outlet connection units 28 and 28 are coupled, the corresponding bus bar contact portions 33 and 33 of each unit come into contact with each other as shown in FIG. The power line connecting units 27 and 27 and the outlet connecting units 28 and 28 are configured so that the electrical connection is completed simultaneously with the combination thereof.
[0027]
7 to 9, a power line connecting unit 27 includes a box-shaped unit case 34 formed of an insulating synthetic resin material, a plurality of conductors 35 formed by processing a conductive metal material, A power line holding lock 36 for holding the connection state of the power line 22 or 23 is provided.
[0028]
A plurality of insulated wire core insertion openings 37 are formed on the front surface of the unit case 34. Further, rail-like coupling protrusions 38 are formed on both side surfaces of the front portion of the unit case 34. Further, the electrical connection portions 31 are provided at the rear portion of the unit case 34. The coupling protrusions 38 are formed so as to extend in the vertical direction in FIG. That is, the coupling protrusions 38 are formed so as to extend in the direction in which the power line connecting unit 27 is attached to the main body frame 29. The upper and lower surfaces of the unit case 34 are formed to be flat surfaces.
[0029]
The conductor 35 is accommodated in the unit case 34. The conductor 35 includes a press-contact portion 40 for press-contacting an insulating wire core 39 drawn from the end of the power supply line 22 or 23, a bus bar 41 having the bus-bar contact portions 33 and 33 at both ends, the press-contact portion 40 and the bus bar. And a connecting portion 42 for connecting 41 to each other. The pressure contact portion 40 is provided with a pair of pressure contact blades 43, 43 with an appropriate interval in the front-rear direction.
[0030]
The plurality of insulated wire core insertion openings 37 and the press contact portions 40 constitute a power supply line connection portion 44 for the power supply line 22 or 23.
[0031]
The power line holding lock 36 is a plate-like member formed of an insulating resin material, and is slidably attached through the upper surface of the unit case 34. When the power wire holding lock 36 is pushed down so that the end surface thereof is flush with the upper surface of the unit case 34, the insulating wire core 39 inserted through the insulating wire core insertion port 37 is inserted into the pair of press contact blades 43, 43. In addition, the pressure contact is pressed to hold the pressure contact connection state. The power supply line holding lock 36 is regulated to be slid by the main body cover 30.
[0032]
10 and 11, the outlet connection unit 28 includes a box-shaped unit case 45 formed of an insulating synthetic resin material, and a plurality of conductors 46 formed by processing a conductive metal material. Configured.
[0033]
An outlet 48 having an outlet 47 with a ground terminal is provided on the front surface of the unit case 45. Further, rail-like coupling protrusions 38 are formed on both side surfaces of the front portion of the unit case 45 (the same as that of the power supply line connecting unit 27). Further, the electrical connection portions 31 are provided at the rear portion of the unit case 45. The upper and lower surfaces of the unit case 45 are formed to be flat surfaces.
[0034]
The conductor 46 is accommodated in the unit case 45. The conductor 46 has a bus bar 50 having a connection portion 49 disposed on the back side of the outlet 47, a bus bar 51 having the bus bar contact portions 33 and 33 at both ends, and a connection for connecting the bus bars 50 and 51 to each other. It has a female terminal 52 and is formed in the shape shown in the figure. The connection female terminal 52 is coupled to the bus bar 51, and is electrically connected when the tab 53 of the bus bar 50 is inserted.
[0035]
2 and 3, the main body frame 29 is formed in a substantially frame shape as illustrated using a synthetic resin material. That is, the main body frame 29 has a flat substrate portion 54 having a square shape in plan view, and four frame portions 55 erected at the four corners of the substrate portion 54, and is formed into a substantially frame shape.
[0036]
The frame portion 55 is formed in an L shape in plan view. The frame portion 55 is formed in accordance with the heights of the power line connecting units 27 and 27 and the outlet connecting units 28 and 28. A guide portion 56 for guiding the coupling protrusions 38 is formed on the side edge portion of the frame portion 55. A window 57 is formed between the frames 55 and 55 so that the power line connecting portion 44 or the outlet 48 is exposed.
[0037]
The main body frame 29 is in a state in which the power line connecting units 27 and 27 and the outlet connecting units 28 and 28 are electrically connected via the electric connecting portions 31 and 31, and the power line connecting portion 44 and the outlet 48 are a plurality of windows. Each part 57 is formed so as to be exposed.
[0038]
The main body cover 30 is formed into a substantially lid-shaped member as illustrated using a synthetic resin material. The main body cover 30 has a square shape in plan view and is formed to have flat front and back surfaces. Such a main body cover 30 is configured so that the four corners thereof are screwed to the four frame portions 55 of the main body frame 29 (or may be fixed by a known lock).
[0039]
It is assumed that the setting of the main body cover 30 is arbitrary (the main body cover 29 prevents the power supply line connection units 27 and 27 and the outlet connection units 28 and 28 from being detached, and maintains the power distribution in a stable state. The setting of the main body cover 30 is preferable).
[0040]
In the above configuration, the wiring branch unit 21 is assembled as follows. That is, the power supply line connection units 27 and 27 and the outlet connection units 28 and 28 are electrically connected via the electric connection portions 31 and 31 of the respective units, and are arranged side by side in a quadrangular shape and joined in this state. Store in. When the body cover 30 is attached to the body frame 29, the wiring branch unit 21 as shown in FIG. 2 is assembled.
[0041]
When connecting the power supply line 22 or 23 to the wiring branch unit 21 assembled in this way, the main body cover 30 is removed from the main body frame 29, the insulating wire core 39 is inserted into the insulating wire core insertion port 37, and the power supply line The holding lock 36 is pushed down. After the pressure connection of the insulated wire core 39 is completed, the main body cover 30 is attached to the main body frame 29 again.
[0042]
When the OA tap 24 is connected to the wiring branch unit 21, the plug 26 is directly inserted and connected to the outlet 48 of the outlet connection unit 28. In this embodiment, the wiring design is made so that the OA taps 24 and 24 are connected in the orthogonal direction with respect to the direction of the power supply lines 22 and 23.
[0043]
Next, another use state of the wiring branch unit will be described with reference to FIGS. 12 and 13 (assumed to be an example).
[0044]
In the branching unit for wiring 21 ′ of the present invention shown in FIG. 12, another power line connecting unit 27 is coupled to the right side of the power line connecting unit 27 in the front of the figure, and the power line connecting unit 27 is adjacent to the right side. The outlet connection unit 28 is coupled, and another outlet connection unit 28 is coupled to the right of the outlet connection unit 28. Further, the outlet connection unit 28 and the power line connection unit 27 on the front side in the figure are coupled. A wiring branch unit 21 ′ in FIG. 12 shows an example in which the arrangement of the power line connecting units 27 and 27 and the outlet connecting units 28 and 28 of the wiring branch unit 21 is changed.
[0045]
On the other hand, in the branching unit 21 ″ for wiring according to the present invention shown in FIG. 13, another outlet connecting unit 28 is coupled to the right side of the outlet connecting unit 28 in the front in the figure, and the outlet connecting unit 28 is adjacent to the right. Similarly, another outlet connecting unit 28 is coupled, and a power line connecting unit 27 is coupled to the right of the outlet connecting unit 28. Further, the power line connecting unit 27 and the outlet connecting unit 28 on the front side in the figure are connected. The wiring branch unit 21 ″ of FIG. 13 shows an example in which three OA taps 24 are connected.
[0046]
As described above with reference to FIGS. 1 to 13, the wiring branch unit 21 (21 ′, 21 ″) of the present invention can be connected to a general-purpose product. Therefore, the degree of freedom in wiring design can be increased.
[0047]
More specifically, since the power line connection unit 27 and the outlet connection unit 28 are separated, a general-purpose product such as the OA tap 24 can be connected in a necessary number and in a necessary direction. In addition, the user can arbitrarily design the wiring.
[0048]
On the other hand, in addition to such effects, the connection between the power supply line connecting unit 27 and the power supply lines 22 and 23 is pressed, and the insulation wire core 39 is inserted so that the power supply line holding lock 36 is pushed down. Therefore, there is an effect that safety can be secured and construction time can be shortened. Moreover, since it was made the structure which only connects units electrically via the electrical connection parts 31 and 31, there exists an effect that the necessity to consider an electrical circuit can be eliminated.
[0049]
In addition, it goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.
[0050]
【The invention's effect】
As described above, according to the present invention described in claim 1, there is an effect that a general-purpose product can be connected. In addition, there is an effect that the degree of freedom in wiring design can be increased.
[0051]
According to the second aspect of the present invention, there is an effect that the power line connection unit and the outlet connection unit can be accommodated in a necessary direction in a necessary number with respect to the main body frame.
[0052]
According to the third aspect of the present invention, the power line connecting unit and the outlet connecting unit can be easily attached to and detached from the main body frame.
[0053]
According to the present invention described in claim 4, it is possible to prevent the power line connecting unit and the outlet connecting unit from being detached. This also brings about an effect that power distribution can be maintained in a stable state.
[0054]
According to the present invention described in claim 5, there is an effect that electrical connection of each unit can be facilitated. In addition, there is an effect that safety at the time of connection can be ensured.
[0055]
According to the present invention described in claim 6, there is an effect that a general-purpose product can be connected. In addition, there is an effect that the degree of freedom in wiring design can be increased. Furthermore, it is possible to prevent the power line connecting unit and the outlet connecting unit from being detached. Furthermore, there is an effect that power distribution can be maintained in a stable state. Furthermore, the connection state of the power supply line can be maintained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a use state of an embodiment of a branching unit for wiring according to the present invention.
FIG. 2 is a perspective view of a wiring branch unit.
FIG. 3 is an exploded perspective view of a branching unit for wiring.
FIG. 4 is a perspective view of the back side of the unit.
FIG. 5 is a perspective view of a state in which each unit is electrically connected.
FIG. 6 is an explanatory diagram of a connection state of each unit.
FIG. 7 is a perspective view of a power line connecting unit.
FIG. 8 is a perspective view of a conductor constituting the power line connecting unit.
FIG. 9 is an explanatory diagram of a connection state between a power line and a conductor.
FIG. 10 is a perspective view of an outlet connection unit.
FIG. 11 is an exploded perspective view of a conductor constituting the outlet connection unit.
FIG. 12 is an explanatory diagram of another usage state of the branching unit for wiring.
FIG. 13 is an explanatory diagram of still another use state of the branching unit for wiring.
FIG. 14 is a perspective view of a conventional joint box.
[Explanation of symbols]
21, 21 ′, 21 ″ Wiring branch unit 22, 23 Power line 24 OA tap 25 Cord 26 Plug 27 Power line connection unit 28 Outlet connection unit 29 Body frame 30 Body cover 31 Electrical connection part 32 Unit coupling groove 33 Bus bar contact part 34 Unit case 35 Conductor 36 Power line holding lock 37 Insulating wire core insertion port 38 Bonding protrusion 39 Insulating wire core 40 Pressure contact portion 41 Bus bar 42 Connection portion 43 Pressure contact blade 44 Power line connection portion 45 Unit case 46 Conductor 47 Outlet port 48 Outlet 49 Connecting Portions 50, 51 Bus Bar 52 Connecting Female Terminal 53 Tab 54 Substrate Portion 55 Frame Portion 56 Guide Portion 57 Window Portion

Claims (6)

One or a plurality of power line connecting units having a power line connecting part to the power line and an electric connecting part to another unit;
One or more outlet connection units having outlets for general-purpose products and electrical connections for other units;
The power supply line connection unit and the outlet connection unit are stored in a state where they are electrically connected via the electric connection portion, and the power supply line connection portion and the outlet are exposed from a plurality of windows. A substantially frame-shaped body frame;
A branching unit for wiring, characterized in that the wiring branch unit is provided. In the branching unit for wiring according to claim 1,
A branching unit for wiring, wherein the power line connecting unit and the outlet connecting unit are formed so as to be detachable from the main body frame. In the branching unit for wiring according to claim 2,
A rail-shaped coupling protrusion is formed on any one of the power line connection unit, the outlet connection unit, and the main body frame, and a guide portion that guides the coupling protrusion is formed on the other. Branch unit. In the branching unit for wiring according to claim 2,
A branching unit for wiring, further comprising a substantially lid-shaped main body cover that is attached to the main body frame and restricts attachment and detachment of the power line connection unit and the outlet connection unit. In the branching unit for wiring according to any one of claims 1 to 4,
The wiring branch unit, wherein the electrical connection portion is composed of a unit coupling groove formed in a unit case and a bus bar contact portion of a bus bar housed in the unit case and exposed from the unit coupling groove. . One or a plurality of power line connecting units having a power line connecting part to a power line, a power line holding lock provided in the power line connecting part for holding the connection state of the power line, and an electrical connecting part to another unit;
One or more outlet connection units having outlets for general-purpose products and electrical connections for other units;
The power supply line connection unit and the outlet connection unit are stored in a state where they are electrically connected via the electric connection portion, and the power supply line connection portion and the outlet are exposed from a plurality of windows. A substantially frame-shaped body frame;
A substantially lid-shaped body cover that is attached to the body frame and regulates the attachment and detachment of the power line connection unit and the outlet connection unit, and holds down the power line holding lock;
A branching unit for wiring, characterized in that the wiring branch unit is provided.

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