JP3083870U - Portable light emitter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An alternating current provided in a transportable housing 2 using a rechargeable battery.
DC converter 12 converts commercial AC power to DC power. The rechargeable battery 34 provided in the housing 2 is charged by the AC-DC converter 12. The luminous bodies 4 a and 4 b provided outside the housing 2 are connected to the rechargeable battery 3 through the open contacts 32.
4 are connected to both ends. The drive means 30 provided in the housing 2 closes the open contact 32 when the output of the AC-DC converter 12 disappears.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a light-emitting device that can be transported, and more particularly to a light-emitting device that can be charged.

[0002]

[Prior art]

 Conventionally, a flashlight is a typical example of the transportable light emitter as described above.

However, in a flashlight, when a built-in battery is exhausted, it must be replaced with a new battery. For this reason, when the user actually wants to use the battery, the battery may be exhausted and unusable.

[0004]

[Problems to be solved by the invention]

 An object of the present invention is to provide a portable light-emitting device that can be always used by using a rechargeable rechargeable battery.

[0005]

[Means for Solving the Problems]

 The portable light-emitting device according to the present invention has a transportable housing. An AC-DC converter is provided in this housing. This AC-DC converter converts commercial AC power to DC power. A rechargeable battery is provided in the housing, and the rechargeable battery is charged by the AC-DC converter. A luminous body is provided outside the housing. This luminous body is connected to both ends of the rechargeable battery via open contacts. Driving means is provided in the housing. The driving means closes the open contact when the output of the AC / DC converter has disappeared.

In the portable light-emitting device thus configured, the rechargeable battery is charged by the AC-DC converter. When the AC supply to the AC-DC converter is cut off and the output of the AC-DC converter is lost, the driving means closes the open contact and DC power is supplied from the rechargeable battery to the light emitter. The luminous body provided outside the housing emits light.

The driving means may include a series circuit connected to both ends of the rechargeable battery. The series circuit includes a contact driver for driving the open contact supplied with a current, and a switching element that is closed when a control signal is supplied to a control terminal. Further, an energizing circuit is provided. This energizing circuit supplies a control signal to the control terminal of the switching element when the output of the AC-DC converter is lost.

In the portable light emitter configured as described above, when the output of the AC / DC converter is lost, the energizing circuit supplies a control signal to the control terminal of the switching element, and the switching element is closed. Then, a current flows through the contact driver, the open contact is closed, and the light emitter is turned on.

Further, a first manual switch can be connected to the switching element in parallel. In such a configuration, when the first manual switch is closed, a current flows through the contact driver, the open contact is closed, and the light emitter is turned on. Therefore, even if the output of the AC-DC converter is not lost, it can be checked whether or not the luminous body emits light.

[0010] In addition, a second manual switch may be provided for turning off the control signal to the control terminal of the switching element when the switch is closed. In such a configuration, when the second manual switch is operated in a state in which the energizing circuit supplies a control signal to the switching element and the light emitter emits light, the supply of the control signal is interrupted and the light emission is stopped. The body stops emitting light. Therefore, light emission can be stopped. When the light emitter needs to emit light, the control signal can be supplied by operating the second manual switch again, so that the light emitter can emit light again.

[0011]

[Embodiment of the invention]

 The portable light emitting device according to one embodiment of the present invention has a housing 2 as shown in FIG. The housing 2 is formed in a substantially rectangular parallelepiped shape, and has a portable size. Light-emitting bodies, for example, lamps 4a and 4b are arranged on both left and right sides of the upper surface of the housing 2, respectively. These lamps 4a, 4b are arranged on support members 6a, 6b formed in a substantially U-shape so as to be rotatable around a horizontal axis. Therefore, the position illuminated by the light emitters 4a and 4b can be changed arbitrarily. Although two lamps 4a and 4b are used, at least one lamp may be used, and three or more lamps may be used.

A belt 8 is attached between the lamps 4 a and 4 b, and the belt 8 is used when moving the housing 2. As shown in FIG. 2, holes 10 and 10 for fixing the housing 2 to a wall or the like are provided on the back surface of the housing 2.

As shown in FIG. 3, an AC-DC converter 12 is provided in the housing 2. An AC voltage obtained by transforming an AC voltage from a commercial AC power supply by a transformer 14 is supplied to an input side of the AC-DC converter 12. On the input side of the transformer 14, a power switch 16 and a fuse 18 are provided in series. The power switch 16 is operable from the front of the housing 2.

A rechargeable battery 34 is connected between the outputs 12 a and 12 b of the AC-DC converter 12. Further, an urging circuit 20 is provided between the outputs 12a and 12b. The energizing circuit 20 has bias resistors 22 and 24 connected in series between two outputs 12a and 12b of the AC-DC converter 12, and the connection point is a semiconductor switching element, for example, a transistor. The emitter of transistor 26 is connected to output 12b. The collector of the transistor 26 is connected to the output 12a via the load resistor 27.

In the housing 2, a semiconductor switching element closed by the energizing circuit 20, for example, a transistor 28 is also provided. The emitter of the transistor 28 is connected to the output 12b, and the base is connected to the collector of the transistor 26. A contact driver, for example, a relay coil 30 is connected in series to the collector of the transistor 28, and the relay coil 30 is connected to the output 12a. The connection point between the relay coil 30 and the output 12a is connected to an open contact which is closed when a current flows through the relay coil 30, for example, lamps 4a and 4b connected in parallel via a relay contact 32.

On / off switches 36 and 38 are provided in parallel with the emitters and collectors of the transistors 26 and 28. The open / close switches 36 and 38 are mechanical switches that are manually opened / closed. The open / close switches 36 and 38 can be operated from the front of the housing 2 as shown in FIG.

In the variable light emitter configured as described above, when the power switch 16 is closed, an AC voltage is supplied to the transformer 14, the voltage is transformed, and the voltage is converted by the AC-DC transformer 12 into a DC voltage. With this DC voltage, the rechargeable battery 34 is charged. At this time, a bias is applied to the base of the transistor 26, and the transistor 26 is turned on. As a result, the base of the transistor 28 has a low potential, and the transistor 28 is non-conductive. As a result, no current flows through the relay coil 30, no current is supplied to the lamps 4a and 4b, and they do not emit light.

When the power switch 16 is opened after the charging of the rechargeable battery 34 is completed, no bias is supplied to the transistor 26 and the transistor 26 is turned off. At this time, a bias is supplied to the transistor 28 via the resistor 27, the transistor 28 is turned on, a current flows through the relay drive coil 30, a relay contact 32 is closed, and a current flows through the lamps 4a and 4b. The lamps 4a and 4b emit light. Therefore, the lamps 4a and 4b can emit light even in a place where there is no AC power supply.

When the open / close switch 38 is closed in the state where the lamps 4a and 4b emit light, the transistor 28 is turned off, the current stops flowing to the relay drive coil 30, and the relay contact 32 is opened. , Lamps 4a and 4b are turned off. When the open / close switch 38 is opened in this state, the lamps 4a and 4b can be turned on again. Therefore, after charging is completed and the lamps 4a and 4b do not need to be turned on, the open / close switch 38 may be closed.

When the open / close switch 38 is closed while the rechargeable battery 34 is being charged, a current flows through the relay drive coil 30, the relay contact 32 is closed, and a current flows through the lamps 4a and 4b. Therefore, when the lamps 4a and 4b emit light when the open / close switch 38 is closed, it can be confirmed that the lamps 4a and 4b are normal.

In the above embodiment, the transistors 26 and 28 are used as semiconductor switching elements. However, the present invention is not limited to this, and FETs can be used. In the above embodiment, two lamps 4a and 4b are used. However, the number can be arbitrarily changed, and at least one lamp needs to be provided.

[0022]

[Effect of the invention]

 As described above, in the portable light-emitting device according to the present invention, when the supply of AC to the AC-DC converter is cut off, the light-emitting body provided outside the housing emits light. If it is connected, it automatically emits light in the event of a power outage and the housing is movable, so it can be moved to a desired location for illumination. Further, by closing the first manual switch, it is possible to check whether or not the light emitter emits light even when the output of the AC / DC converter is not lost. When the second manual switch is operated, the light emission of the light emitter can be stopped. If the first manual switch is closed after charging is completed, the light emission can be performed to a desired place. While the container is being moved, unnecessary light emission of the luminous body can be prevented, and unnecessary consumption of the rechargeable battery can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view of a portable light emitting device according to an embodiment of the present invention.

FIG. 2 is a rear view of the portable light emitting device of FIG.

FIG. 3 is a block diagram of the portable light emitting device of FIG. 1;

[Explanation of symbols]

 2 Housing 4a, 4b Lamp (light emitter) 12 AC-DC converter 20 Energizing circuit 28 Transistor (semiconductor switching element) 30 Relay drive coil (contact drive unit) 32 Relay contact (open contact)

Claims (4)

[Utility model registration claims] 1. A transportable casing that is always usable by using a rechargeable rechargeable battery, an AC-DC converter provided in the casing and converting a commercial AC power supply into a DC power supply, A rechargeable battery provided in the housing and charged by the AC-DC converter; a light emitter connected to both ends of the rechargeable battery via open contacts and provided outside the housing; A portable light-emitting device, which is provided in a body and includes a driving means for closing the open contact when the output of the AC-DC converter is lost. 2. The portable light emitting device according to claim 1, wherein
The driving unit includes a contact driving unit that drives the open contact supplied with current, and a switching element that is closed when a control signal is supplied to a control terminal, and a series circuit connected to both ends of the rechargeable battery. And a biasing circuit that supplies a control signal to a control terminal of the switching element when an output of the AC-DC converter is lost. 3. The portable light emitting device according to claim 2, wherein
A portable light emitter having a first manual switch connected in parallel with said first switching element. 4. The portable light-emitting device according to claim 2, wherein
A portable light emitter having a second manual switch that, when closed, renders the control signal to the control terminal of the switching element non-supplied.