JPS6321852Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a downlight-type recessed emergency fluorescent light fixture in which the main body housing the light source and lighting device is installed recessed in the ceiling. .

[Conventional technology]

Conventionally, in this type of small (for example, about 15 cm in diameter) downlight type emergency lighting equipment, the light source used is mostly incandescent bulbs due to their size, and incandescent bulbs have a constant lighting voltage.
For this reason, this type of emergency lighting equipment consists of a regular lamp that is compatible with the regular power supply voltage (mainly 100 VAC), as shown in Japanese Utility Model Publication No. 59-23292, and a regular lamp that is compatible with the regular power supply voltage (mainly 100 VAC), and a low-voltage lamp that is compatible with the battery voltage of the emergency power supply (for example, 12 VDC). Voltage)
The structure is such that a compatible emergency lamp is installed separately. This is because if you try to use a battery to light a regular lamp during a power outage, you will need a very large battery that cannot be stored in the main body, while current emergency lamps have an extremely short rated life and are not suitable for regular lighting. This is because it is not practical.

Therefore, if a discharge lamp such as a fluorescent lamp is used as the above-mentioned light source, it can be lit not only by a regular power supply but also by a small capacity low voltage battery (for example, DC 3.6V) using high frequency lighting technology, which is also economical. ,
In this case, the external size of the fluorescent lamp was large, making it difficult to put it into practical use.

[Problem that the invention attempts to solve]

Recently, a compact single-cap fluorescent lamp has been developed, and the above-mentioned emergency lighting equipment using the fluorescent lamp has become technically possible. However, a new problem here is the thermal influence of each component. In other words, the ballast required to light a fluorescent lamp with a regular power source is a heat-generating component whose surface temperature reaches 70℃ or higher, but the battery built in as an emergency power source has a temperature within the normal temperature range (as specified by JIS). It exhibits effective performance at temperatures between 5°C and 35°C, but when the temperature rises, the output decreases and the fluorescent lamp cannot be lit. Therefore, how to prevent the heat of the ballast from being transmitted to the battery within the main body has been a problem in putting emergency lighting equipment using fluorescent lamps into practical use. In addition, emergency lighting equipment that uses multiple incandescent light bulbs for regular use and emergency use is complex in terms of structure and design, and has the inconvenience of not being able to match the design with general incandescent downlights. It was hot.

This idea was made to solve the above problems, and it is a built-in emergency flasher that can match the design with the general lighting equipment installed, and that can always keep the battery of the emergency lighting device in a good temperature condition. The purpose is to obtain light fixtures.

[Means for solving problems]

The recessed emergency fluorescent light device according to this invention includes a ballast provided at the top of the recessed main body, a heat shield plate disposed below the ballast with a space having a ventilation hole interposed therebetween,
Batteries and the like are placed on the bottom side of this heat shield plate.

[Effect]

In this design, the heat generated by the ballast is transferred to the top surface of the embedded body and released to the outside, and the heat radiated downward is insulated in a space with ventilation holes, and is further transferred to the battery by a heat shield. heat transfer is reduced.

〔Example〕

The drawing is a sectional view showing a recessed emergency fluorescent light fixture according to an embodiment of the invention. In this figure, reference numeral 1 denotes an embedded main body in the form of a bottomed cylinder having an opening on the lower surface, and is embedded in a ceiling 2 in which a cut hole 2a is formed. Reference numeral 3 denotes a ballast for constantly lighting a fluorescent lamp 11, which will be described later, using a regular power source, and is attached to the bottom surface of the embedded body 1 in close contact with the ballast. 4 is stabilizer 3
A plurality of ventilation holes 5 formed along the peripheral wall of the embedded body 1 in the lower part are downward dish-shaped heat shield plates located below the ventilation holes 4 and substantially inscribed in the inner wall of the embedded body 1, A space 6 is formed between the lower surface of the ballast 3 and the upper surface of the heat shield plate 5, which communicates with the outside air through the ventilation hole 4. Reference numeral 7 denotes a retaining spring made of a spring material that is fixed to the inner peripheral surface of the embedded body 1 and has a dogleg-shaped locking portion, and is used to removably lock the edge 5a of the heat shield plate 5. Reference numerals 8 and 9 denote an inverter and a battery, which are emergency lighting devices fixed to the lower surface of the heat shield plate 5. The inverter 8 converts the direct current of the battery 9 into high-frequency alternating current, and lights the fluorescent lamp 11 during a power outage. It is used to turn on the lights in an emergency. Further, 10 is a socket fixed to the bottom surface of the inverter 8, and 11
is a single-cap type fluorescent lamp attached to this socket 10.

In the recessed emergency fluorescent lamp device configured in this way, the fluorescent lamp 11 is normally lit by the regular power supply via the ballast 3, and the battery 9 is turned on in the event of a power outage of the regular power supply.
The light is turned on by The heat generated by the ballast 3 is radiated upward from the bottom of the embedded body 1, and the heat radiated downward is radiated into the space 6.
Since the heat is insulated by the heat shield plate 5 and further blocked by the heat shield plate 5, the amount of heat transmitted to the battery 9 is reduced. Furthermore, since the heat shield plate 5 to which the battery 9 and the like are attached is removably locked to the embedded body 1 by the holding spring 7, the assembly and maintainability of the device are also excellent.

[Effect of idea]

As described above, according to the recessed emergency fluorescent light fixture of this invention, a ballast for lighting the fluorescent lamp using a regular power supply is provided at the top of the recessed main body, and a ventilator is provided below the ballast. A heat shield is installed through the space with holes, and the emergency lighting device is attached to the bottom of the heat shield, so the batteries can always be kept in a good temperature condition, and outside air can be brought in through the ventilation holes. It can also be expected to have a cooling effect on the ballast. This eliminates the problems associated with conventional fixtures, which required multiple incandescent light bulbs for regular and emergency use. (1) The design has the advantage of being able to match the design with the general lighting fixtures installed.

(2) Economic advantage of significantly reducing emergency battery capacity.

(3) Lamp replacement costs can be reduced by using fluorescent lamps, which have a longer lifespan than incandescent bulbs.

(4) Power saving effect by improving lamp efficiency.

Many other effects can be obtained.

[Brief explanation of drawings]

The drawing is a sectional view showing a recessed emergency fluorescent light fixture according to an embodiment of the invention. 1... Embedded body, 3... Ballast, 4... Ventilation hole, 5... Heat shield, 7... Holding spring, 8... Inverter, 9... Battery, 11... Fluorescent lamp.

Claims (1)

[Claims for Utility Model Registration] (1) An embedded body that is a bottomed cylinder whose lower surface is open and has a fluorescent lamp inside, which is disposed inside the bottom of the embedded body so that the fluorescent lamp can be powered by a regular power supply. A ballast for lighting, a ventilation hole provided in the peripheral wall of the embedded body below the ballast and communicating with the outside of the embedded body, and a shield located below the ventilation hole and substantially inscribed in the inner wall of the embedded body. A recessed emergency fluorescent lamp, characterized in that it is equipped with a heat plate, and an emergency lighting device disposed on the lower surface of the heat shield plate and consisting of a battery and an inverter that lights the fluorescent lamp in the event of a power outage of the regular power source. Light equipment. (2) The recessed emergency fluorescent light fixture according to claim 1, wherein the heat shield plate is detachably attached to the recessed main body.