JPS639934Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an emergency lighting device that charges a built-in storage battery using a high-frequency inverter charging method to reduce the size and weight of the charging circuit.

[Background technology]

Conventional emergency lighting equipment of this type generates noise and radiation noise at the AC terminals due to high-frequency inverter charging, which affects various devices as conduction noise, causing malfunctions and interference with their operation. There is a problem with causing it.
In order to prevent such high frequency noise problems, it is generally considered to shield the entire equipment that is the source of the noise with a metal plate such as aluminum, but this shielding is not easy and Due to the shielding, there is a problem in that despite the miniaturization of the charging circuit section, the overall size increases and the cost increases.

[Purpose of invention]

The purpose of this invention is to easily prevent malfunctions of other equipment and interference with other equipment due to the generation of electrostatic noise and electromagnetic noise, while being inexpensive and without increasing the overall size. The purpose is to provide emergency lighting equipment.

[Disclosure of invention]

In the emergency lighting equipment of this invention, a metal socket base is attached to a metal fixture body, and a storage battery is arranged in a ring so as to surround the socket base, and the light is placed in a space surrounded by the fixture body, the socket base, and the storage battery. It features a high-frequency inverter charging circuit that charges the storage battery.

According to the configuration of this invention, the high-frequency inverter charging circuit is placed in the space surrounded by the appliance body, the socket base, and the storage battery, so the high-frequency inverter charging circuit can be shielded and the high-frequency It is possible to easily prevent malfunction of other equipment and interference with the operation of other equipment due to the generation of electrostatic noise and electromagnetic noise from the inverter charging circuit, and it is inexpensive and does not increase the size of the entire device.

Embodiment An embodiment of this invention will be explained based on FIGS. 1 to 4. As shown in Fig. 1, this emergency lighting equipment consists of a main body 1 made of a copper plate, a copper plate bent into a hat shape, a circuit block 2 containing a high frequency inverter charging circuit attached to the inside, and a lamp socket 3 attached. A socket base 4 made of aluminum is fixed to the outside, and a ring-shaped storage battery storage case 5 formed of a molded product is fixed to the device main body 1 so as to surround this socket base 4. A reflector plate 6 is attached, a lamp 7 is attached to the lamp socket 3 through the center hole (not shown) of the reflector plate 6, and the integrated part is surrounded by a main body frame 8 made of wood, molded product, or copper plate. 8
The light from the lamp 7 is radiated outward from the central opening 8a.

In this case, the storage battery storage case 5 stores storage batteries 9 placed in a copper case in a ring-shaped manner, and the storage batteries 9 surround the socket base 4. Further, the circuit block 2 incorporates semiconductor circuits such as a charging section, an inverter oscillating section, and a switching section, and is surrounded by the device main body 1, the socket base 4, and the storage battery 9 arranged in an annular manner.

By the circuit block 2, the storage battery 9 is normally charged by the high frequency inverter, and during a power outage, power is supplied from the storage battery 9 to the lamp 7, so that the lamp 7 is turned on in an emergency.

Figure 2 is a side view of this emergency lighting equipment.
is a pull ring for operating the inspection switch. FIG. 3 is a perspective view of the storage battery storage case 5, etc., and FIG. 4 is a sectional view of the storage battery storage case 5.

The emergency lighting device of this embodiment has a circuit block 2 including a high-frequency inverter charging circuit arranged in a space surrounded by the device body 1, a socket base 4, and a storage battery housing case 5 that houses a storage battery 9. To easily prevent malfunction of other equipment and interference with the operation of other equipment due to generation of electrostatic noise and electromagnetic noise from the high-frequency inverter charging circuit by shielding the high-frequency inverter charging circuit without requiring shielding means. Moreover, it is inexpensive and does not increase the size of the whole.

In addition, if a metal foil such as aluminum or copper is pasted on the front inner surface of the storage battery storage case 5, the shielding function can be further enhanced, and the heat dissipation function is also enhanced, so that it can be used locally when charging the storage battery or when lighting the lamp. temperature rise can be prevented, and therefore the storage battery 9
It is possible to prevent shortening of the service life of the battery and improve reliability for emergency use. The metal foil may be attached to the inside or back surface of the storage battery housing case 5, or to the outside or back surface.

[Effect of idea]

According to the emergency lighting device of this invention, the high frequency inverter charging circuit is placed in the space surrounded by the device body, the socket base, and the storage battery, so the high frequency inverter charging circuit can be shielded without the need for special shielding means. It is possible to easily prevent malfunction of other equipment and interference with the operation of other equipment due to the generation of electrostatic noise and electromagnetic noise from the high frequency inverter charging circuit, and it is inexpensive and the overall size can be reduced. do not have.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an embodiment of this invention, FIG. 2 is a side view of the assembled state, FIG. 3 is a perspective view of the main part, and FIG. 4 is a side view of the main part. DESCRIPTION OF SYMBOLS 1... Appliance body, 2... Circuit block, 3... Lamp socket, 4... Socket stand, 5... Storage battery storage case, 6... Reflector plate, 7... Lamp, 9... Storage battery.

Claims (1)

[Scope of utility model registration request] A metal appliance body, a metal socket base attached to the appliance body, a lamp socket attached to the socket base, a lamp attached to the lamp socket, and an annular arrangement surrounding the socket base. An emergency lighting device comprising: a storage battery that supplies power to the lamp in an emergency; and a high-frequency inverter charging circuit that is placed in a space surrounded by the device main body, the socket base, and the storage battery to charge the storage battery.