JP4033694B2 - Lighting device - Google Patents

Description

【００２２】
次いで、図２、図３は本実施形態の外観を示すものであり、図２（ａ）は伸縮装置による伸縮ストロークを最大にして投光器２００を最高位置に配置した場合の側面図、同（ｂ）は正面図、図３（ａ）は伸縮ストロークを最小にして投光器２００を最低位置に配置した場合の側面図、同（ｂ）は正面図である。
【００２３】
図２及び図３において、３００は電源装置１００が載置された台車、４００は先端に投光器２００が取り付けられて三段に伸縮可能な伸縮装置であり、この伸縮装置４００の基端部は前記台車３００に固定されている。
投光器２００は伸縮装置４００により所望の高さに設置可能であると共に、３６０度の範囲で旋回し、１８０度の範囲でふ仰できるように構成されている。
なお、表２は本実施形態の照明装置の全体的な仕様を示すものである。その内容は、前述の表１と同様に、本発明の技術的範囲を何ら限定するものではない。
【００２４】
【表２】

【００２５】
上述した実施形態は、本発明の照明装置を台車３００により可搬型としたものであるが、台車を用いずに小型トラック等の荷台に据え付けて移動可能に構成することもできる。
【００２６】
【発明の効果】
以上のように本発明によれば、商用電源を確保できない場所でもNAS電池の電力を使用してNAS電池を保温しながら点灯可能であり、従来のエンジン発電機式照明装置のように騒音や有害な排気ガスを発生せず、使用環境を選ばない実用的な照明装置を提供することができる。
【図面の簡単な説明】
【図１】本実施形態にかかる照明装置の電気的な構成を示す回路図である。
【図２】本実施形態にかかる照明装置の伸縮ストロークを最大にした時の外観図である。
【図３】本実施形態にかかる照明装置の伸縮ストロークを最小にした時の外観図である。
【符号の説明】
１００ 電源装置
１０１ 整流回路
１０２，１０７ 平滑フィルタ
１０３ コンバータ
１０４，１０８ 電解コンデンサ
１０５ インバータ
１０６，１１０ チョッパ
１０９ NAS電池
１１１ 電池制御回路
１１２ ＰＣＳ制御回路
１１３〜１１６ 接点
１１７ コンセント
２００ 投光器
２０１ 照明灯
２０２ 安定器
３００ 台車
４００ 伸縮装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable lighting device using a sodium-sulfur (NAS) battery, and more particularly, suitable for use in various events such as night work, outdoor concerts, and Bon festival dance in places where commercial power is difficult to obtain. It relates to the device.
[0002]
[Problems to be solved by the prior art and invention]
Conventionally, an engine generator type lighting device is well known as a lighting device having this kind of application. This lighting device generates AC power by an engine generator and uses the generated power to light a lighting fixture.
[0003]
However, the engine generator type lighting device has a problem that the noise of the engine generator is large and a large amount of harmful exhaust gas is discharged. These noises and exhaust gases are a great nuisance for the residents around the place where the lighting device is installed. For example, when the lighting device is used for night construction, it has been a cause of disturbing sleep and air pollution. Further, in various events such as outdoor concerts, the noise of the engine generator attenuates the sound effects of performances and moderators, and the exhaust gas may harm the health of event participants. For this reason, there also existed a problem that the installation place of an illuminating device was restrict | limited.
[0004]
On the other hand, as a portable power source, a NAS battery is known that has a higher energy density than a lead battery, does not self-discharge, and is completely sealed and easy to maintain. A power storage device using this NAS battery is practical. It has become.
However, because of the operating principle of NAS batteries, a heater for battery heating is indispensable because it is necessary to always keep the temperature above a certain temperature, and the temperature of the NAS battery decreases in places where commercial power as a heater power source cannot be obtained. There is a problem that it becomes unusable.
[0005]
Therefore, the present invention is intended to provide a lighting device using a NAS battery that can be used even in a place where a commercial power source cannot be secured, and does not cause a noise or harmful exhaust gas.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that a projector having an illuminating lamp is attached to a distal end of an expansion / contraction device, and a power supply device that supplies power to the illuminating lamp has a base end portion of the expansion / contraction device fixed In the lighting device placed on the trolley,
The power supply device includes a sodium-sulfur battery, a first power conversion device that converts an AC voltage of a commercial power source into a DC voltage, and a voltage output from the first power conversion device that is stepped down and supplied to the battery. A second power converter for charging the battery; means for heating the battery with an AC voltage of a commercial power supply when the battery is charged; and a third power converter for boosting the output voltage when the battery is discharged. And a fourth power conversion device that converts a DC output voltage of the third power conversion device into an AC voltage and supplies the same to the projector, and the battery uses the output voltage of the fourth power conversion device when the battery is discharged. And means for heating.
[0007]
According to a second aspect of the present invention, in the lighting device according to the first aspect, the first power converter includes a rectifier circuit and a boost converter, the second power converter includes a step-down chopper, and the third power converter includes a boost. A chopper is provided, and the fourth power converter is provided with an inverter.
[0008]
According to a third aspect of the present invention, in the illumination device according to the first or second aspect, the position of the projector is made variable by the telescopic device .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, FIG. 1 is a circuit diagram showing an electrical configuration of a lighting apparatus according to the present embodiment. This lighting device is roughly composed of a power supply device 100 and a projector 200.
[0012]
The power supply apparatus 100 includes a rectifier circuit 101 connected to a commercial power supply, a smoothing filter 102 including a reactor, a resistor, and a capacitor connected to an output side thereof, and a boosting unit including a reactor and a switching element connected to the output side thereof. Converter 103, an electrolytic capacitor 104 connected to the output side thereof via a diode, an inverter 105 such as a voltage type PWM inverter connected to one end thereof, and a step-down chopper connected to the DC input side of inverter 105, respectively. The choppers 106 and 110 constituting the step-up chopper, the smoothing filter 107 connected to the AC output side of the inverter 105, the contact 113 having one end connected to the output side, and the reactor at the connection point of the choppers 106 and 110 The electrolytic capacitor 108 connected via the Connected between the NAS battery 109 connected through the point 116, a contact 115 connected between the input side of the rectifier circuit 101 and the heater in the NAS battery 109, and one end of each of the contacts 113, 115. The battery contact circuit 114, the battery control circuit 111 that outputs a command for detecting the terminal voltage of the NAS battery 109 and controlling the charge / discharge, and each power converter (converter 103, inverter 105, chopper 106, 110). And a PCS (power conversion system) control circuit 112 that generates and outputs a driving pulse for the switching elements constituting the circuit. The other end of the contact 113 is connected to the projector 200 and the outlet 117.
[0013]
The rectifier circuit 101, the smoothing filter 102, the converter 103, and the electrolytic capacitor 104 constitute an AC / DC converter circuit. The choppers 106 and 110 operate so as to step down or step up the DC voltage when the NAS battery 109 is charged / discharged.
Here, the rectifier circuit 101 and the converter 103 are the first power converter in claim 1, the chopper 106 is the second power converter, the chopper 110 is the third power converter, and the inverter 105 is the fourth power converter. A power conversion device is configured.
[0014]
On the other hand, the projector 200 includes an illuminating lamp 201 such as a metal halide lamp and a ballast 202, and the illuminating lamp 201 is connected in parallel with two lamps.
The outlet 117 is a service outlet for supplying power to various AC loads (not shown).
[0015]
Next, the operation of this embodiment will be described.
First, in a place where a commercial power source can be secured, AC power is converted to DC power by an AC / DC converter circuit including the rectifier circuit 101, the converter 103, and the like, and AC 100V is converted to DC 200V. Next, DC200V is stepped down by a chopper (step-down chopper) 106, and constant power charging is performed so that the terminal voltage of the NAS battery 109 becomes a rated voltage (for example, 17V). At this time, the contact 116 is on.
When the NAS battery 109 is charged, the contact 115 is on and the contact 114 is off. The heater power of the NAS battery 109 is supplied from a commercial power source to heat the NAS battery 109 for a long time.
[0016]
When the commercial power supply is shut off, the NAS battery 109 is automatically discharged.
When the chopper (boost chopper) 110 is operated, the output voltage of the NAS battery 109 is boosted to DC 200 V, and the DC input voltage of the inverter 105 is maintained at DC 200 V via the chopper 106. At this time, the contact 116 is on.
[0017]
The voltage of DC200V is converted into AC100V by the inverter 105 and supplied to the projector 200 and the outlet 117 through the contact 113 in the on state. Thereby, the illumination lamp 201 is turned on.
When the NAS battery 109 is being discharged, by turning on the contact 114, the heater power of the NAS battery 109 is supplied by the output of the inverter 105, that is, the direct current output of the NAS battery 109 itself. Is kept at a predetermined temperature.
[0018]
In each of the operations described above, the battery control circuit 111 detects the terminal voltage of the NAS battery 109 and outputs a charge / discharge control command to the PCS control circuit 112 so that the NAS battery 109 is not overcharged or voltage abnormally charged. To control. The PCS control circuit 112 controls the operations of the choppers 106 and 110 and the operations of the converter 103 and the inverter 105 in accordance with the charge / discharge control command.
[0019]
As described above, in this embodiment, the NAS battery 109 is charged and heated in a place where a commercial power source can be secured, and the apparatus is transported and installed in an outdoor place where there is no commercial power source. The NAS battery 109 is discharged while being kept warm, and AC power obtained by converting the DC power by the inverter 105 is supplied to the projector 200 to turn on the illuminating lamp 201.
For this reason, it is possible to illuminate using the power of the NAS battery 109 without any trouble even in a place where a commercial power supply cannot be secured, and there is no worry of being bothered by noise and exhaust gas as in the conventional engine generator type lighting device, The installation location is not restricted.
[0020]
Here, Table 1 shows schematic specifications of the power conversion device and the NAS battery 109 that constitute the power supply device 100. Needless to say, this specification is merely an example and does not limit the technical scope of the present invention.
[0021]
[Table 1]

[0022]
Next, FIG. 2 and FIG. 3 show the appearance of the present embodiment, and FIG. 2 (a) is a side view when the projector 200 is disposed at the highest position with the expansion / contraction stroke by the expansion / contraction device being maximized. ) Is a front view, FIG. 3 (a) is a side view when the projector 200 is disposed at the lowest position with a minimum expansion / contraction stroke, and FIG. 3 (b) is a front view.
[0023]
2 and 3, reference numeral 300 denotes a carriage on which the power supply device 100 is placed, and 400 denotes a telescopic device that can be expanded and contracted in three stages with the projector 200 attached to the distal end. It is fixed to the carriage 300.
The projector 200 can be installed at a desired height by the telescopic device 400, and is configured to be able to turn in a range of 360 degrees and lift in a range of 180 degrees.
Table 2 shows the overall specifications of the lighting device of this embodiment. The contents are not intended to limit the technical scope of the present invention in the same manner as Table 1 described above.
[0024]
[Table 2]

[0025]
In the embodiment described above, the lighting device of the present invention is made portable by the carriage 300, but it can also be configured to be movable by being installed on a loading platform such as a small truck without using the carriage.
[0026]
【The invention's effect】
As described above, according to the present invention, it is possible to turn on the NAS battery while keeping the temperature of the NAS battery warm even in a place where the commercial power source cannot be secured. Therefore, it is possible to provide a practical lighting device that does not generate a large exhaust gas and can be used in any environment.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing an electrical configuration of a lighting apparatus according to an embodiment.
FIG. 2 is an external view when the expansion / contraction stroke of the lighting device according to the present embodiment is maximized.
FIG. 3 is an external view of the lighting device according to the present embodiment when the expansion / contraction stroke is minimized.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Power supply device 101 Rectifier circuit 102,107 Smoothing filter 103 Converter 104,108 Electrolytic capacitor 105 Inverter 106,110 Chopper 109 NAS battery 111 Battery control circuit 112 PCS control circuit 113-116 Contact 117 Outlet 200 Floodlight 201 Illumination lamp 202 Ballast 300 Dolly 400 Telescopic device

Claims (3)

In a lighting device in which a projector having an illuminating lamp is attached to a distal end of a telescopic device, and a power supply device that supplies power to the illuminating lamp is mounted on a carriage to which a base end portion of the telescopic device is fixed,
The power supply device
Sodium-sulfur battery,
A first power converter that converts an AC voltage of a commercial power source into a DC voltage;
A second power converter that charges the battery by reducing the output voltage of the first power converter and supplying the battery to the battery;
Means for heating the battery with an AC voltage of a commercial power source when charging the battery;
A third power converter that boosts the output voltage when the battery is discharged;
A fourth power converter for converting a DC output voltage of the third power converter to an AC voltage and supplying the converted voltage to the projector;
Means for heating the battery by the output voltage of the fourth power converter when the battery is discharged;
An illumination device comprising: The lighting device according to claim 1,
The first power converter includes a rectifier circuit and a boost converter, the second power converter includes a step-down chopper, the third power converter includes a boost chopper, and the fourth power converter includes an inverter. A lighting device characterized by that. The lighting device according to claim 1 or 2,
An illumination device characterized in that the position of the projector is made variable by the telescopic device.

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