JP2013004310A - Emergency lighting fixture and emergency lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency lighting device capable of dispensing with a highly heatproof terminal block and lasting power supply to the other fixture bodies even though some fixture body breaks down, and an emergency lighting system.SOLUTION: The emergency lighting fixture A includes a connection section 2, and the fixture body 1. The connection section 2 is electrically connected with a lead wire 71 by making it cut into an insulating covering 72 of a covered wire 7 for power supply having the lead wire 71 and the insulating covering 72 for covering the lead wire 71. Then, the fixture body 1 has an LED 11 which is lighted with power supplied through the connection section 2.

Description

    The present invention relates to an emergency lighting fixture and an emergency lighting system.

  Conventionally, there has been a guide light device that is arranged in a plurality along an evacuation guide route such as a corridor and that is supplied with electric power from an emergency power source in the event of a power failure and illuminates the evacuation direction (see Patent Document 1).

JP-A-6-168606

  When a plurality of guide light devices as described above are installed along the evacuation guide route, power is generally supplied to each guide light device by sending and wiring between the guide light devices. In this guide light device, a fire-resistant cable is used as a coated electric wire for power supply in order to protect a path for distributing power from a high-temperature environment due to a fire. Moreover, in a guide light apparatus, it is necessary to use a thing with high heat resistance for the terminal block to which the insulated wire for electric power feeding is connected. In addition, because of the wiring, if a short circuit occurs in the instrument body due to a high temperature environment in a fire, not only the function of the instrument body that is short-circuited is lost, but also the functions of all other instrument bodies are lost. .

  The present invention has been made in view of the above-described reasons, and the purpose of the present invention is to eliminate the need for a terminal block with high heat resistance, and even when a certain instrument body breaks down, power supply to other instrument bodies can be continued. It is in providing a lighting fixture and an emergency lighting system.

  In order to solve the above problems, the emergency lighting apparatus of the present invention includes a connection portion and an apparatus main body. The connecting portion is electrically connected to the conducting wire by biting into the insulating coating of a coated electric wire for power feeding having a conducting wire and an insulating coating covering the conducting wire. And the said instrument main body has a light source which lights with the electric power supplied via the said connection part, It is characterized by the above-mentioned.

  In this emergency lighting apparatus, it is preferable that an overcurrent protection unit is provided in a power feeding path from the connection unit to the light source.

  Moreover, the emergency lighting system of this invention is equipped with the said emergency lighting fixture and the power supply part which supplies electric power to the said covered electric wire to which the said emergency lighting fixture is connected. And the said power supply part is equipped with the storage battery which is charged with the common power supply, discharges at the time of a power failure of the said common power supply, and supplies electric power to the said emergency lighting fixture.

  In this emergency lighting system, it is preferable that the power supply unit is provided with an inspection switch for switching between a state where power is supplied from the normal power source and a state where power supply from the normal power source is cut off.

  In the present invention, it is possible to provide an emergency lighting apparatus and an emergency lighting system that do not require a highly heat-resistant terminal block and can continue to supply power to another apparatus body even when a certain apparatus body fails. .

It is a figure of the state by which the emergency lighting fixture of this embodiment is attached to the covered electric wire for electric power feeding. (A) is a figure of the connection part same as the above, (b) is the figure which has connected the connection part same as the above to a conducting wire. It is a figure of the emergency lighting system in the same as the above.

  Below, embodiment of an emergency lighting fixture and an emergency lighting system is described based on FIGS. 1-3.

  As shown in FIG. 1, the emergency lighting device A includes a device main body 1 and connection portions 2 and 2 that are electrically connected to cables 12 and 12 led out from the device main body 1, respectively.

  The appliance main body 1 is attached to the ceiling with the upper portion embedded in a hole provided in the ceiling, and the lower surface of the appliance main body 1 is exposed to the indoor side. A plurality of LEDs 11 are arranged as light sources on the lower surface of the instrument body 1. A lighting circuit (not shown) for lighting the plurality of LEDs 11 is housed inside the instrument body 1. Cables 12 and 12 for supplying electric power to the lighting circuit are led out from the upper surface of the appliance main body 1, and a connecting portion 2 is connected to the tip of each cable 12. An electron tube such as a fluorescent lamp may be used as the light source instead of the LED 11. In FIG. 3, the overcurrent protection unit 3 is provided outside the instrument body 1, but the overcurrent protection unit 3 may be provided inside the instrument body 1.

  When the power supplied to the emergency lighting fixture A is DC power, the power is supplied to the fixture body 1 by connecting one of the connecting portions 2 and 2 to the positive electrode and the other to the negative electrode. Further, as shown in FIG. 3, the emergency lighting apparatus A includes an overcurrent protection unit 3 (from a fuse or the like) that prevents an overcurrent from flowing to the apparatus body 1 in the electric circuit connecting the lighting circuit and the connection unit 2. May be provided.

  As shown in FIGS. 2 (a) and 2 (b), each connection portion 2 has a covered electric wire 7 sandwiched between two connection plates 21a and 21b that are rotatably connected and contact portions 24 and 24 that face each other. And a latch portion 25 for holding the state.

  Each of the connection plates 21a and 21b is a rectangular plate obtained by punching a conductive metal plate, and includes round holes 22 and 22 penetrating portions close to one end in the longitudinal direction, and contact portions 24 and 24, respectively. It is rotatably connected by a connecting pin 23 inserted into the round holes 22 and 22. As shown in FIG. 2 (a), the contact portions 24, 24 are provided at portions facing each other, and include V-shaped blades 24a, 24a formed by punching the connection plates 21a, 21b into a wedge shape. Yes. The width of the open end of the V-shaped blade 24 a is set to be longer than the outer diameter of the insulating coating 72 of the covered electric wire 7. In addition, as shown in FIG. 2B, the minimum width of the hole formed by the blades 24a and 24a of both the connection plates 21a and 21b with the connection plates 21a and 21b closed is smaller than the inner diameter of the insulating coating 72. Are set to slightly smaller dimensions. Thereby, the blade 24a can be electrically connected to the conducting wire 71 without damaging the conducting wire 71 of the covered electric wire 7 as much as possible while the blade 24a cuts the insulating coating 72. The cable 12 is connected to one of the connection plates 21a and 21b by a method such as soldering or caulking.

  The latch portion 25 includes a receiving metal fitting 26 and a hook metal fitting 27 each formed of a metal plate having a spring property, and the receiving metal fitting 26 and the hook metal fitting 27 are fixed to the other end in the longitudinal direction of the connection plates 21a and 21b, respectively. ing.

  The metal fitting 26 extends along the longitudinal direction of the connection plate 21a, and a substantially U-shaped bent portion that protrudes toward the connection plate 21b is provided at a tip portion thereof.

  The hook metal 27 is formed in a substantially J shape, and as shown in FIG. 2B, when the connection plate 21a rotates to the cable connection position, the hook metal 27 is locked from the upper side in the figure. A claw 27a is provided.

  In addition, the latch part 25 is not limited to said form, What kind of form may be sufficient as long as a cable connection state can be hold | maintained.

  The connection part 2 has the structure as described above, and the operation when connecting the power supply covered wire 7 to the connection part 2 will be described. First, as shown in FIG. 2A, the operator places the covered electric wire 7 in the groove of the contact portion 24 with the connection plates 21 a and 21 b opened. Next, as shown in FIG. 2 (b), when the connection plates 21a and 21b are rotated in a direction approaching each other by the operator, the respective blades 24a and 24a cut the insulating coating 72 of the covered electric wire 7 and Connect electrically. When the bent portion of the receiving metal fitting 26 comes into contact with the claw 27a of the hook metal fitting 27 by this rotation, the claw 27a is elastically deformed, the receiving metal fitting 26 passes over the claw 27a, and the claw 27a is hooked on the receiving metal fitting 26. The state where the conducting wire 71 is sandwiched between the plates 21a and 21b is maintained. The restriction of the rotation of the connection plates 21 a and 21 b by the latch portion 25 and the release of the restriction can be easily performed by utilizing the elasticity of the receiving metal fitting 26 and the hook metal fitting 27. In addition, from the state of FIG.2 (b), it connects to the surface where the connection board 21b is contacting the connection board 21a so that the conducting wire 71 may not be cut | disconnected by further rotating the connection boards 21a and 21b in the direction which mutually approaches. It is preferable to provide a rotation stopper 28 that abuts against the end of 21a and restricts the rotation of the connecting plate 21a.

  Thus, when the connection parts 2 and 2 are connected to the covered electric wires 7 and 7, a power supply path to the lighting control circuit 42 is secured via the connection part 2 and the cable 12. In addition, in the connection part 2, it is preferable to insulate the part except the contact parts 24 and 24 in order to prevent a short circuit.

  Next, the emergency lighting system B provided with the emergency lighting fixture A mentioned above is demonstrated.

  As shown in FIGS. 1 and 3, the emergency lighting system B includes a plurality of emergency lighting fixtures A, a power cable 6, and a power supply unit 4 that supplies power to the emergency lighting fixture A via the power cable 6. With.

  As shown in FIG. 1, the power cable 6 includes two-core covered electric wires 7 and 7 and a sheath 61 made of an insulating material that covers and covers the covered electric wires 7 and 7. The power cable 6 is wired on the back of the ceiling or the back of the wall so that power can be supplied to, for example, the emergency lighting fixture A installed along the evacuation route in the building. When connecting the connecting portion 2 to the covered electric wire 7, as shown in FIG. 1, the sheath 61 is partially removed to expose the covered electric wire 7, and the connecting portion 2 is connected to the exposed portion.

  The power supply unit 4 is provided between the lighting control circuit 42 that sends power to the emergency lighting fixture A via the power cable 6, the storage battery 41 that serves as a power source during a power failure, and the lighting control circuit 42 and the regular power supply 8. The inspection switch 43 is provided.

  For example, a lithium ion battery or a nickel metal hydride battery is used as the storage battery 41, and charging / discharging is controlled by the lighting control circuit 42.

  The lighting control circuit 42 charges the storage battery 41 when power from the regular power supply 8 is supplied to the lighting control circuit 42. The lighting control circuit 42 discharges the storage battery 41 and supplies lighting power to the emergency lighting fixture A when the supply of power from the regular power supply 8 is stopped in an emergency such as a fire.

  The inspection switch 43 is provided in an electric circuit connected from the normal power source 8 to the lighting control circuit 42, and can open and close the electric circuit according to an operation by an operator. It is possible to artificially generate a lighting state by cutting off the power supply to the lighting control circuit 42.

  As described above, the emergency lighting apparatus A includes the connection portion 2 and the apparatus main body 1. The connecting portion 2 bites into the insulating coating 72 of the covered electric wire 7 having the conducting wire 71 and the insulating coating 72 covering the conducting wire 71, and is electrically connected to the conducting wire 71. The instrument main body 1 includes a light source (LED 11 in the present embodiment) that is lit with electric power supplied via the connection unit 2.

  Thereby, a terminal block with high heat resistance is unnecessary, and even when a certain instrument main body 1 breaks down, power supply to other instrument main bodies 1 can be continued, and the instrument main body 1 can be easily placed anywhere in the power cable 6 Can be connected to.

  Moreover, the emergency lighting fixture A may be provided with the overcurrent protection unit 3 in the power feeding path from the connection unit 2 to the light source.

  Thereby, even if an overcurrent flows through a certain emergency lighting fixture A due to the influence of a high-temperature environment such as a fire, the overcurrent protection unit 3 can protect the internal circuit of the emergency lighting fixture A.

  The emergency lighting system B includes an emergency lighting fixture A and a power supply unit 4 that supplies power to the power cable 6 to which the emergency lighting fixture A is connected. The power supply unit 4 includes a storage battery 41 that is charged by the service power supply 8 and is discharged when the service power supply 8 is powered down to supply power to the emergency lighting fixture A.

  Thereby, even if the power supply from the regular power supply 8 to the power supply unit 4 is interrupted due to a power failure, since the power is supplied from the storage battery 41 to the emergency lighting fixture A, the emergency lighting fixture A can avoid loss of function.

  In the emergency lighting system B, the power supply unit 4 is provided with an inspection switch 43 for switching between a state where power is supplied from the normal power source 8 and a state where power supply from the normal power source 8 is cut off.

  With this, when the operator opens the inspection switch 43, is the emergency lighting fixture A normally turned on, or can the storage battery 41 be turned on for the required time without external power supply? Can be checked.

1 Instrument body 11 LED (light source)
12 Cable 2 Connection portion 21a, 21b Connection plate 22 Round hole 23 Connecting pin 24 Contact portion 24a Blade 25 Latch portion 26 Receiving bracket 27 Hatch bracket 27a Claw 28 Anti-rotation 3 Overcurrent protection portion 4 Power supply portion 41 Storage battery 42 Lighting control circuit 43 Inspection switch 6 Power cable 61 Sheath 7 Covered wire 71 Conductor 72 Insulation cover 8 Common power supply

Claims (4)

  A connecting portion that is electrically connected to the conducting wire by biting into the insulating coating of the conductive wire and a coated electric wire for power supply having an insulating coating that covers the conducting wire, and a light source that is lit by the power supplied via the connecting portion An emergency lighting fixture comprising: a fixture main body having the same.   The emergency lighting apparatus according to claim 1, wherein an overcurrent protection unit is provided in a power supply path from the connection unit to the light source. The emergency lighting apparatus according to claim 1, and a power supply unit that supplies power to the covered electric wire to which the emergency lighting apparatus is connected,
The emergency power system, wherein the power supply unit includes a storage battery that is charged by a normal power supply, and that is discharged during a power failure of the normal power supply to supply power to the emergency lighting apparatus.   4. The emergency switch according to claim 3, wherein the power supply unit is provided with an inspection switch for switching between a state in which power is supplied from the normal power source and a state in which power supply from the normal power source is cut off. Lighting system.

Images