JPH0452945Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a terminal block used in fluorescent lighting fixtures mounted on the ceilings of buildings, trains, etc.

[Conventional technology]

Terminal blocks for lighting equipment are used to connect the power line to the lighting equipment, power supply line, ground line, ground line for sending, load line connected to the ballast and lamp socket, etc. Among these wiring, the load line Connections to all electric wires, except for the wires, will be made during the construction work when installing the lighting equipment on the ceiling.

And, as this type of terminal block,
A technique described in Japanese Patent No. 124492 is known. This terminal block consists of a power connection block consisting of a two-pole terminal fitting for connecting a power line, a two-pole terminal fitting for a power supply line conductively connected to the terminal fitting, a terminal fitting for connecting a grounding wire, and the terminal fitting. A ground wire connection block consisting of a terminal fitting that is conductively connected to the metal fitting and connects the ground feed wire is attached to the insulating container. A conductive leg for connecting the internal circuit of the electric appliance is provided on the two-pole terminal fitting of the power supply connection block, and a grounding terminal plate that conducts electricity to the terminal fitting of the grounding line connection block is protruded outside the insulating container. , the ground terminal plate is configured as a mounting means for mounting the insulating container to an electrical appliance.

[The problem that the idea aims to solve]

However, in the terminal block described in the above-mentioned publication, the front surface is formed with the same flat surface, and the power wire insertion hole into which the power wire is inserted and connected, and the power wire insertion hole into which the ground wire is inserted are inserted into the flat surface without a step. A ground wire insertion hole to which the ground wire is connected is provided.

By the way, as mentioned above, each electric wire is connected during the construction work when installing lighting equipment on the ceiling.
In such cases, there is usually no satisfactory illumination. Therefore, in the configuration of a conventional terminal block in which insertion holes for a power wire and a ground wire are provided on the same flat surface, it is not easy to identify each connection hole, and there is a problem that wiring errors are likely to occur.

On the other hand, although the technical field is completely different from terminal blocks for lighting equipment, in input/output terminal display devices for audio equipment, in order to make it easier to identify inputs and outputs without fumbling, a mounting panel into which a connector is inserted and connected is used. A technique in which a convex portion and a concave portion are provided on the surface in correspondence with the insertion portion is known from Japan Institute of Invention and Innovation Publication No. 81-6116.

However, there is no basis for applying this technology to a terminal block for lighting equipment in a different field, and this technology only makes it possible to individually identify each connector on the mounting panel.

In addition, in the terminal block described in the above publication, the connection part of the load line (wiring inside the appliance) protrudes from the surface opposite to the same flat surface where the power wire insertion hole and the ground wire insertion hole are provided. Made of conductive legs.
Therefore, when connecting the load line, the wiring direction of the load line routed along the chassis must be bent so that it is parallel to the conductive legs, and then the connection must be made. Moreover, the load wires are connected to the conductive legs exposed outside the insulating container by soldering. Therefore, there is a problem that the workability of connecting the load line is poor.

Moreover, in the terminal block described in the above-mentioned publication, the power supply line, the ground line, and the load line are connected to mutually opposite surfaces of the insulating container. Additionally, an insulating enclosure is provided through the chassis so that the chassis separates the power and ground wires from the load wires. Therefore, after wiring work, when attempting to visually check whether the wiring is proper, the chassis gets in the way, and there is a problem in that it is practically impossible to inspect the wiring condition.

Therefore, the purpose of the present invention is to provide a lighting equipment that facilitates the wiring work of various electric wires routed to the bottom side of the chassis, prevents wiring errors during the wiring process, and allows easy inspection of the wiring condition. Our goal is to provide terminal blocks.

[Means to solve the problem]

In the present invention, lamp sockets for supporting rod-shaped fluorescent lamps are attached to both longitudinal ends of a chassis mounted on the ceiling, projecting downward, and a ballast is located between these lamp sockets on the bottom surface of the chassis. Applies to terminal blocks used in lighting equipment to which

In order to achieve the above object, a step is provided on the opposite side of the chassis of the terminal block body fixed to the bottom surface of the chassis, and the power wire insertion surface and the ground wire insertion surface are separated by this step. A load wire insertion surface is formed on the side surface of the terminal block body, a power wire insertion hole is formed in the power wire insertion surface, and a ground wire insertion hole is formed in the ground wire insertion surface. A first terminal board and a second terminal board are respectively arranged in the vertical direction, and a load line insertion hole is arranged in the load line insertion surface part in the horizontal direction, and the first terminal board and the second terminal board are respectively housed in the terminal block body. In addition, a locking terminal for a power line is inserted between the first terminal plate and the power line to be inserted into the power line insertion hole, and a locking terminal for the power line is inserted between the power line and the first terminal plate, and a ground wire to be inserted into the ground line insertion hole is connected to the second terminal. a locking terminal for a ground wire to be clamped between the ground wire and the plate, and a locking terminal for a load line to be clamped between the load wire inserted into the load wire insertion hole and the first terminal plate, respectively. It is stored.

[Effect]

In the above configuration, the surface of the terminal block body into which the electric wire is inserted is divided into the surface opposite the chassis and the load wire insertion surface on the side of the chassis, and the step divides the surface opposite the chassis into a power line insertion surface and a ground line insertion surface. This ensures a large area for each insertion surface. Not only that, but it also makes it easy to distinguish between the power line insertion surface and the ground line insertion surface, which are provided on different surfaces, and the step makes it easy to distinguish between the power line insertion surface and the ground line insertion surface provided on the same side. And since the load wire insertion hole is on the side of the terminal block body, the load wire connected to the lamp socket and the ballast and wired along the underside of the chassis can be inserted into the load wire insertion hole in a position along the wiring direction without bending it up or down. Furthermore, the power line and the earth line are connected by being inserted vertically upward from the underside of the terminal block body, and the load line is connected by being inserted horizontally from the side of the terminal block body as described above, so that the connection points and connected postures of each electric wire are predetermined, and all the various electric wires can be arranged on the underside of the chassis and connected to the terminal block. Also, the first and second terminal boards built into the terminal block body and their corresponding locking terminals clamp the core wires of the power line, earth line, and load line when they are inserted into the corresponding insertion holes of the terminal block.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

1 in Fig. 1 is a chassis attached to the ceiling A of buildings, trains, etc. Lamp sockets 4 projecting downward are attached to both ends of the chassis 1 in the longitudinal direction, and a ballast 2 and a terminal block 3 are attached to the lower surface of the chassis 1 between the lamp sockets 4, respectively. It is being The lower surface of the chassis 1 is covered with a reflective shade 5 through which the socket 4 passes, and a rod-shaped fluorescent lamp 6 is supported between the lamp sockets 4 at the lower side of the shade 5.

A power line 7 is connected to the terminal block 3, which is led from the ceiling A through the chassis 1. The terminal block 3 is further connected to the ballast 2 through a load line 8, and is also connected to one of the lamp sockets 4 through a load line 9. The ballast 2 is also connected to the other lamp socket 4 through a load line 10.

The terminal block 3 is shown in detail in FIGS. 2 to 4. In other words, the reference numeral 11 in these figures is the terminal block body, and the terminal block body 1 is made of synthetic resin.
2 and a terminal block cover 13. These body 12 and cover 13 are connected to each other by locking engagement claws 16 and 17 integrally provided on terminal block cover 13 into locking holes 14 and 15 provided in terminal block body 12, respectively. They are connected without being used. Terminal block body 12 is terminal block cover 1
It has a protrusion 12a exposed from 3, and terminal block fixing holes 18 and 19 are provided in this protrusion 12a.

This terminal block main body 11 has terminal block fixing holes 18, 1
It is fixed to the lower surface of the chassis 1 via a fixing screw (not shown) passing through one fixing hole selectively used among the fixing holes. In addition, when using the terminal block fixing hole 19, the fixing screw is inserted into this hole 19 while cutting a thread groove.

A step 20 is provided on the surface of the terminal block main body 11 opposite to the chassis 1, that is, the surface that becomes the lower side when attached to the chassis 1. The opposite surface is divided into a power wire insertion surface portion 21 and a ground wire insertion surface portion 22, using this step 20 as a gap.
The ground wire insertion surface portion 22 is lower toward the chassis 1 than the power wire insertion surface portion 21.

Power line insertion holes 23 and 2 are provided in the power line insertion surface 21.
4 are arranged vertically. The power line 7 is inserted upward from below into one insertion hole 23, and a plurality of fluorescent lamps are inserted into the other insertion hole 24 either directly in a longitudinal direction or arranged at intervals on the ceiling A. When installed, a power supply wire (not shown) for sending power to an adjacent fluorescent lamp is inserted upward from the bottom. Note that the power line insertion surface portion 21 is integrally molded with a rating display and display symbols that are slightly protruded and serve as a guide for power line insertion.

A ground wire insertion hole 2 is provided in the ground wire insertion surface 22.
5 and 26 are arranged vertically, respectively. A ground wire (not shown) is inserted into one insertion hole 25 upward from below, and a ground wire (not shown) for feeding an adjacent fluorescent lamp is inserted upward from below into the other ground wire insertion hole 26. It is now being inserted into. Note that this ground wire insertion surface portion 22 is also integrally molded with a slightly protruding display symbol indicating that this surface is for insertion of a ground wire.

Further, a portion of the terminal block cover 13 forms a load wire insertion surface portion 41 that forms a side surface of the terminal block main body 11. Therefore, this insertion surface portion 41 is provided on a different surface from the insertion surface portions 21 and 22 described above. This load line insertion surface 41 has a load line insertion hole 3.
7 is provided horizontally, into which load lines 8 and 9 wired along the lower surface of the chassis 1 are inserted.

Inside the terminal block main body 11, a first terminal plate 27, locking terminals 28, 29, 30, a second terminal plate 31 for a ground wire, and locking terminals 32, 33 are housed, respectively.

The locking terminal 28 clamps the power supply line 7 between the first terminal plate 27, and the locking terminal 29 clamps the power supply line for feeding between the first terminal plate 27 and the locking terminal 29. 30 connects the load lines 8 and 9 with the first terminal plate 27.
It has come to be used as a clamp.

The locking terminal 32 clamps the ground wire between the second terminal board 31 and the locking terminal 33 connects the second terminal board 31.
The feed ground wire is clamped between the wire and the wire. The terminal plate 31 for the ground wire has a protrusion 31 that bites into a hole provided in the chassis 1 to make electrical contact.
It has a.

Note that 34 in FIG. 4 is a release button for the lock terminals 28 and 29 operated from the power line insertion surface 21;
In FIGS. 2 to 4, 35 is a release hole for the lock terminals 32 and 33 provided in the ground wire insertion surface 22, and 36 is a release hole for the lock terminal 30.

The terminal block 3 having the above structure has a step 20 provided on the side opposite to the chassis 1, which allows the power line insertion hole 2 to
A power line insertion surface part 21 provided with holes 3 and 24, and a ground wire insertion surface part 2 provided with ground wire insertion holes 23 and 24.
Since these double-sided parts 21,
The double-sided portions 21 and 22 can be easily and reliably identified visually or tactually by the height difference between the two surfaces 22. Therefore, it is possible to prevent the power line 7 and the feeding power line from being accidentally inserted into the ground wire insertion hole 25 or 26, or the ground wire (including the feeding line) from being inserted into the power line insertion hole 23 or 24. can. In addition, a load line insertion surface portion 41 formed on the side surface of the terminal block main body 11
The load wires 8 and 9 are inserted into the load wire insertion hole 37 from the horizontal direction. As described above, it is possible to prevent erroneous wiring and perform predetermined wiring, thereby eliminating the need for troublesome re-insertion associated with erroneous wiring.

Moreover, since the load line insertion surface section 41 is provided on a surface different from the above-mentioned both insertion surface sections 21 and 22, the load line 8,
Miswiring between 9 and the power line 7 and ground line can also be prevented. Moreover, due to the above-described arrangement of the load line insertion surface section 41, the load line insertion surface section 41 and both of the insertion surface sections 21 and 22 to which the power supply line 7 and the ground wire are connected.
A relatively wide area can be secured for each, and each wiring work can be carried out on such a wide surface. Furthermore, since the load line insertion surface part 41 is located on the side surface of the terminal block main body 11, and the load line insertion hole 37 is along the horizontal direction, the load wires 8 and 9 can be placed up and down while remaining along the wiring direction. These load wires 8 and 9 can be inserted into the load wire insertion hole 37 parallel to the wiring direction and connected without being bent in the direction. Therefore, the work of connecting the load lines 8 and 9 to the terminal block 3 is easy, and no excessive force is applied to the connection points. Moreover, when connecting the above-mentioned various electric wires (power wire, ground wire, and load wire) to the terminal block 3, core wires are inserted into the terminal block main body 11 at the insertion ends of the wires in correspondence with the respective insertion holes 23 to 26, 37. The first and second terminal boards 2 housed in
7, 31 and the locking terminals 20-30, 32, 33. Therefore, it is sufficient to simply insert it from each insertion hole 23 to 26, 37, and time-consuming work such as soldering can be eliminated.

Therefore, for these reasons, the workability of wiring various electric wires can be improved.

As described above, the load wires 8 and 9 are connected to the terminal block main body 11 by being inserted horizontally from the side of the terminal block main body 11, and the power wire 7 and the ground wire are connected to the bottom surface of the terminal block main body 11. Since the connection is made by inserting the wires vertically upward, the connection point and the connected position of each wire are predetermined, and the terminal block 3 does not penetrate through the chassis 1, but is connected to the bottom surface of the chassis 1. Because of the layout, the wiring status of various electric wires can be checked without being disturbed by the chassis 1.
It can be visually recognized from the bottom side of this chassis 1. Therefore, after wiring work, it is possible to easily check whether the wiring is appropriate.

Furthermore, since the ground wire insertion surface portion 22 is made lower than the power wire insertion surface portion 21, the amount of material used for the terminal block body 12 can be reduced, which is useful for cost reduction. Note that since the ground wire insertion surface 22 is lowered, even if the core wire of the ground wire is inserted into the ground wire insertion hole 25,
No particular problem will arise even if a portion is exposed from 26. Furthermore, it goes without saying that the above-mentioned identification effect can also be obtained when the ground wire insertion surface portion 22 is made higher than the power wire insertion surface portion 21.

Although the above-mentioned embodiment is configured as described above, in the present invention, the terminal block cover and the terminal block body forming the terminal block body may be connected using screws. In addition, when implementing the present invention, unless it is contrary to the gist of the invention, the terminal block body, terminal board,
Specific structures of locking terminals, steps, power wire insertion surface, load wire insertion surface, ground wire insertion surface, power wire insertion hole, ground wire insertion hole, load wire insertion hole, each chain terminal, terminal board, etc. , shape, position, material, etc.
It goes without saying that the present invention is not limited to the one embodiment described above and can be configured and implemented in various ways.

[Effect of idea]

Since the terminal block for lighting equipment of the present invention described above has the configuration described in the above-mentioned utility model registration claims, it is possible to install the lighting equipment on the ceiling even though there is generally no satisfactory lighting. First, it is easy to distinguish between the power wire insertion surface and the ground wire insertion surface, which are separated by a step, and the load wire insertion surface is provided on the side of the terminal block body at a position different from these two surfaces. It is easy to identify each insertion surface, and each insertion surface has a relatively large area. Therefore, incorrect wiring of various electric wires can be prevented. Furthermore, the load line can be connected to the terminal block while remaining along the bottom surface of the chassis of the lighting fixture without having to bend it significantly. In addition, since each wiring is connected by clamping it between the first and second terminal boards and their corresponding locking terminals, there is no need for troublesome work such as soldering, and you can simply connect them to the corresponding insertion holes. You can connect by simply inserting it into the Therefore, it is easy to connect various types of wiring, and as a result, the workability of installing the lighting equipment on the ceiling can be improved. In addition, the power line and ground wire are connected perpendicularly to the chassis, and the load line (wiring inside the appliance)
Since the cable can be wired horizontally along the underside of the chassis, in this type of ceiling-mounted equipment, the wiring status of various electric wires can be easily identified from the underside of the chassis without being obstructed by the chassis. This makes it easy to check whether the wiring is appropriate after wiring work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic sectional view of a fluorescent light fixture mounted on the ceiling, Fig. 2 is a perspective view of the terminal block, and Fig. 3 is a view taken from the direction of the arrow in Fig. 2. FIG. 4 is an exploded perspective view of the terminal block. 1... Chassis, 2... Ballast, 3... Terminal block, 4... Lamp socket, 6... Fluorescent lamp, 7
...Power wire, 81...Power wire insertion surface section, 22...
Earth wire insertion surface portion, 23, 24... Power wire insertion hole, 25, 26... Earth wire insertion hole, 37... Load line insertion hole, 41... Load line insertion surface portion, 27...
First terminal board, 31...Second terminal board, 28-30,
32, 33...Lock terminal.

Claims (1)

[Claims for Utility Model Registration] Lamp sockets for supporting rod-shaped fluorescent lamps are attached to both longitudinal ends of a chassis mounted on the ceiling, each projecting downward, and a lamp socket for supporting a rod-shaped fluorescent lamp is attached to each end of the chassis. In a terminal block used in a lighting fixture with a ballast attached to the bottom surface, a step is provided on the opposite side of the chassis to the terminal block main body fixed to the bottom surface of the chassis, and the power source is divided by the step. A wire insertion surface portion and a ground wire insertion surface portion are formed on the opposite surfaces, a load wire insertion surface portion is formed on the side surface of the terminal block body, a power wire insertion hole is formed in the power wire insertion surface portion, and a power wire insertion hole is formed on the power wire insertion surface portion, and the ground wire insertion surface portion is formed on the side surface of the terminal block body. A ground wire insertion hole is provided in the surface portion facing vertically, and a load wire insertion hole is provided horizontally in the load wire insertion surface portion. A power line locking terminal that houses the two terminal boards and clamps the power line inserted into the power line insertion hole between the power line and the first terminal plate, and a power line locking terminal that is inserted into the ground line insertion hole. A ground wire locking terminal for clamping the ground wire between the second terminal plate and a load line locking terminal for clamping the load wire inserted into the load line insertion hole between the first terminal plate. A terminal block for lighting equipment characterized by housing a locking terminal and a locking terminal.