TWM455808U - Emergency lighting device - Google Patents

Description

Emergency lighting device

The present invention relates to an emergency lighting device, and more particularly to an emergency lighting device that can still have an illumination effect when the power is off.

Light Emitting Diode (LED) has the characteristics of small size, power saving and durability, and the cost is reduced due to the process and output of the LED. Therefore, the light-emitting diode has gradually become the most influential light source of the new generation, and it is widely used in various terminal equipment and lighting fields.

Generally, in the driving technology of the light emitting diode, when the power supply voltage starts to be supplied, the driving device converts the power supply voltage into a driving voltage to drive the light emitting diode to generate the light source. When the supply voltage is stopped, the drive unit does not supply the drive voltage, and the light-emitting diode is immediately turned off. However, when the supply voltage is stopped and the light source of the light-emitting diode is immediately turned off, the user cannot perform some simple things (such as taking a key, etc.) after the light source is turned off, thereby reducing the convenience of use. Or, due to natural disasters or man-made disasters, the situation of power outages is once again in the darkness in the absence of light or dim or light, and the people in the environment are disturbed by the sudden darkness. There are even situations that endanger security.

In view of the above, US Pat. No. 7,768,008 proposes a lighting lamp which can be generated by driving a timer and a Pulse Width Modulation (PWM) signal after stopping the supply of the power supply voltage. To drive the light-emitting diode to conduct and emit light to delay the light-emitting diode The light source of the body is extinguished. However, the aforementioned patents use timers and pulse width modulation signal generators, which may increase the complexity and cost of circuit design, and thus there is still room for improvement in delaying the driving circuit of the light source of the light emitting diode.

In view of this, the present invention provides an emergency lighting device that can still have a lighting effect when the power is turned off, and is its main purpose.

In order to achieve the above, the alarm lighting device of the present invention includes at least a switch coupled to the mains, a backup power module, and a lamp. The standby power module is coupled to the switch, and is provided with a coupling coupled to each other. a control unit and a power storage unit, wherein the lamp is provided with a control unit, a driving unit and a light source. The driving unit is respectively coupled to the control unit and the light source, and the control unit is respectively coupled to the switch and the standby power module. Connected, it can control whether the power is supplied by the utility or by the standby power module.

Wherein, when the mains is not powered off, the lamp can be switched to use the mains mode when the switch is turned on, the mains driving lamp continues to emit light, and the mains powers the standby power module at the same time; when the mains is powered off, When the switch is turned on, the luminaire can be switched to use the standby power mode, and the standby power supply module provides backup power to continuously illuminate the luminaire for a period of time, and the luminaire is extinguished when the standby power is used.

According to the above main technical features, the light source is a light emitting diode.

According to the above main technical features, the power storage unit may be a battery or a capacitor.

According to the above main technical features, the charging control unit can convert the alternating current provided by the commercial power into direct current.

According to the above main technical features, the driving unit can convert the alternating current provided by the commercial power into direct current.

According to the above main technical features, the charging control unit can control the mains to stop charging the power storage unit when the power storage unit is fully charged.

The characteristics of this creation can be clearly understood by referring to the detailed description of the drawings and the examples.

As shown in the first embodiment of the present invention, the emergency lighting device includes at least a switch 2 coupled to the mains 1, a backup power module 3, and a lamp 4, wherein: The backup power module 3 is coupled to the switch 2, and the backup power module 3 is provided with a charging control unit 31 and a power storage unit 32 coupled to each other; the charging control unit 31 converts the alternating current provided by the mains 1 into a direct current, and the power storage unit 32 Then, the received DC power is stored, and the charging control unit 31 can control the mains to stop charging the power storage unit when the power storage unit 32 is charged and saturated; the power storage unit 32 can be a battery or a capacitor.

The lamp 4 is provided with a control unit 41, a driving unit 42 and a light source 43. The driving unit 42 is coupled to the control unit 41 and the light source 43 respectively, and the control unit 41 is respectively connected with the switch 1 and the power storage unit 32 of the standby power module. The coupling can control whether the power is supplied by the main power supply 1 or by the backup power supply module 3. The driving unit 42 can convert the alternating current supplied by the commercial power into direct current and transmit it to the light source 43 to illuminate it. The light source 43 is a light emitting diode.

In use, as shown in the second and third figures, the control unit 41 continuously detects the power supply condition of the mains 1, and when the mains 1 is not powered off, the switch 2 is turned on. In the state, the control unit 41 switches the lamp 4 to use the mains 1 mode to drive the illumination source 43 to stably emit light through the drive unit 42, and the mains 1 simultaneously charges the electric storage unit 32 through the charging control unit 31.

When the mains 1 is powered off, as shown in the third and fourth figures, when the switch 2 is turned on, the control unit 41 switches the lamp 4 to use the standby power mode, and the backup power module 3 provides the backup. The power source drives the light source 43 to stably emit light through the power storage unit 32 through the driving unit 42, so that the lamp 4 continues to emit light for a period of time, and the standby power source is turned off after the lamp 4 is used.

It is worth mentioning that the standby power module of the present invention and the luminaire are independent individuals, and can be individually installed and repaired, and when the luminaire is powered off, its state is fully bright and completely dark when extinguished. In order to extend the illumination time of the lighting device, and to maintain a certain lighting effect.

In summary, this creation provides a better and viable emergency lighting device, and submits a new patent application in accordance with the law; the technical content and technical features of the creation have been disclosed above, but those familiar with the technology may still be based on this The creation of the creation and the various changes and modifications that do not depart from the creative spirit of the case. Therefore, the scope of the present invention is not limited to the embodiments disclosed, but includes various alternatives and modifications that do not depart from the present invention and are covered by the following claims.

1‧‧‧Power

2‧‧‧Switch

3‧‧‧Replacement power module

31‧‧‧Charging control unit

32‧‧‧Power storage unit

4‧‧‧Lighting

41‧‧‧Control unit

42‧‧‧Drive unit

43‧‧‧Light source

The first figure is a schematic structural view of a police lighting device according to a preferred embodiment of the present invention.

The second figure is a schematic diagram of the structure of the emergency lighting device in the present embodiment in which the commercial power is not powered off.

The third figure is the flow of the emergency lighting method in a preferred embodiment of the present invention. schematic diagram.

The fourth figure is a schematic diagram of the structure of the emergency lighting device in the present embodiment in which the utility power is powered off.

1‧‧‧Power

2‧‧‧Switch

3‧‧‧Replacement power module

31‧‧‧Charging control unit

32‧‧‧Power storage unit

4‧‧‧Lighting

41‧‧‧Control unit

42‧‧‧Drive unit

43‧‧‧Light source

Claims (6)

An emergency lighting device includes at least a switch coupled to the mains; a backup power module coupled to the switch, the standby power module having a charging control unit and an electric storage unit coupled to each other; and a lamp The control unit, the driving unit and the illumination source are respectively coupled to the control unit and the illumination source, and the control unit is respectively coupled to the switch and the backup power module, and can be controlled by the mains or by the The backup power module supplies power or not. The emergency lighting device of claim 1, wherein the light source is a light emitting diode. The emergency lighting device of claim 1, wherein the power storage unit is a battery or a capacitor. The emergency lighting device of any one of the preceding claims, wherein the charging control unit converts the alternating current provided by the commercial power into direct current. The emergency lighting device of any one of the preceding claims, wherein the driving unit converts the alternating current provided by the commercial power into direct current. The emergency lighting device according to any one of the preceding claims, wherein the charging control unit controls the commercial power supply to stop charging the power storage unit when the power storage unit is fully charged.