CN202647542U - LED tube with conventional lighting function and emergency lighting function - Google Patents

Abstract

The utility model provides an LED tube with a conventional lighting function and an emergency lighting function. The LED tube comprises a tube, a battery, a drive control circuit and a detection control circuit, wherein the tube comprises a plurality of LED lamp beads serving as a light source; the battery is connected with the tube and is used for outputting power to the tube; the drive control circuit is connected with an electric supply and the tube and is used for supplying constant-current driving power to the tube; and the detection control circuit is connected with the tube, the battery and the drive control circuit and is used for judging the power failure of the electric supply and the normal switching operation and controlling the battery to output power to the tube in case of the power failure of the electric supply. The LED tube with the conventional lighting function and the emergency lighting function improves the utilization rate of the lamp, reduces the cost of separately purchasing an emergency lamp system and has great advantages in an occasion where the emergency lamp system is difficult to assemble separately. A certain proportion of the LED tubes are mounted while a fluorescent tube is adopted to save the troubles of separately mounting the emergency lamp system and wiring and improve the utilization rate of the lamp and the fund utilization rate.

Description

A kind of LED lamp tube with conventional lighting and emergency lighting functions at the same time

technical field

The utility model relates to an LED lamp, in particular to an LED lamp tube which has the functions of conventional lighting and emergency lighting at the same time.

Background technique

In daily applications, lighting can be divided into normal lighting and general lighting. For general lighting, the current solid-state lighting technology-LED lighting technology has become popular, and the tube LED lamp is one of the typical representatives of the current solid-state lighting technology. For emergency lighting, its energy storage part has undergone a transition from lead-acid batteries to lithium batteries. Lighting equipment is mainly composed of two parts: light source and drive control circuit. Emergency lighting equipment also needs energy storage equipment, namely batteries.

The current emergency lights are mainly wall-mounted, panel-mounted or table-mounted with fluorescent light sources or incandescent light sources. Some products begin to use LED lamp beads as light sources. Their common characteristics are: not working during daily hours, and lighting functions in emergency situations such as fires. Turn it on; in case of emergency, the brightness is low, usually lower than 100lm, which only serves as a guide function, not as a road lighting function, and cannot guide the masses to escape well. And the general lighting and emergency lighting are two separate systems, that is, the general lighting system and the emergency lighting system are two completely irrelevant independent systems. Practice shows that the prior art has the following defects:

The installation of independent dual systems takes up a lot of space. The existing emergency light system is large in size and takes up space. Wall-mounted emergency lights are generally hung on the wall or on a pillar. In some large shopping malls or places with relatively low ceilings, there is not a suitable place to install them, and special wiring is required to supply power to emergency lights.

The cost of purchase, installation, and maintenance is high, and the utilization rate of the existing emergency light system is low. It is only used when the power is cut off, which occupies capital costs, and the cost of the emergency light system is high.

Fluorescent lamps and fluorescent tubes have low luminous efficiency, and the effective utilization rate of the emitted light is low. The inductance ballast matched with the fluorescent tube is noisy, has high loss and flickers. Electronic ballasts have a relatively short life span, generally 3000H-6000H.

The emergency lighting effect of the independent dual system is poor, and the installation location is poor: the better lighting locations are all occupied by general lighting fixtures. Affects the emergency lighting effect. In addition, the performance of existing emergency lighting fixtures is generally lower than that of general lighting fixtures, especially the light efficiency. the

Utility model content

The purpose of the utility model is to provide an LED lamp tube with the functions of conventional lighting and emergency lighting at the same time, so as to solve various problems caused by the existing independent dual systems of general lighting and emergency lighting.

In order to achieve the above object, the utility model provides an LED lamp tube with conventional lighting and emergency lighting functions at the same time, which includes: a lamp tube, including a plurality of LED lamp beads as a light source; a battery, connected to the lamp tube, used For outputting power to the lamp tube; the drive control circuit is connected to the mains and the lamp tube to provide constant current drive power to the lamp tube; the detection control circuit is connected to the lamp tube and the battery And the driving control circuit is used for judging the mains power failure and normal switch operation, and controlling the battery to output power to the lamp tube when the mains power failure occurs.

According to a preferred embodiment of the above-mentioned LED light tube having functions of both conventional lighting and emergency lighting, the detection control circuit includes: a counter for recording the number of power outages, and sending a control signal when the number of power outages is one The battery outputs power to the lamp tube, and when there are two consecutive power outages, it is judged as a normal switch operation so that the drive control circuit stops providing constant current drive power to the lamp tube; the timer is connected with the counter for The length of time between two consecutive power outages is set to avoid misoperation of the counter.

According to a preferred embodiment of the above-mentioned LED lamp tube having functions of conventional lighting and emergency lighting, wherein, the battery, the driving control circuit and the detection control circuit are located inside the lamp tube.

According to a preferred embodiment of the above-mentioned LED lamp tube having both conventional lighting and emergency lighting functions, wherein the battery, the drive control circuit and the detection control circuit are located outside the lamp tube, and the drive control circuit A casing is arranged outside the circuit and the detection control circuit.

According to a preferred embodiment of the above-mentioned LED light tube having functions of both conventional lighting and emergency lighting, the battery is a lithium battery.

According to a preferred embodiment of the above-mentioned LED light tube having functions of both conventional lighting and emergency lighting, it further includes: a charging management circuit connected to the mains and the battery for charging the battery.

The utility model combines the LED energy-saving lighting mode with the traditional emergency light system, integrates the LED lamp tube and the emergency light, improves the utilization rate of the light fixture, and reduces the cost of separately purchasing the emergency light system. It has great advantages in occasions where it is not easy to assemble the emergency light system separately. While adopting the fluorescent tube, installing a certain proportion of the utility model saves the trouble of separately installing the emergency light system and wiring. Improve the utilization rate of lamps and lanterns and capital utilization rate. Furthermore, the built-in emergency light does not need separate wiring to control the on and off of the light, which saves the trouble of wiring.

Description of drawings

Fig. 1 is a schematic structural block diagram of a preferred embodiment of the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 schematically shows the principle structure of the preferred embodiment of the utility model, as shown in the figure, the preferred embodiment includes a charge management circuit 2, a lithium battery 3 as a battery, a detection control circuit 4, a drive control circuit 5 and Lamp 6. When in use, the charge management circuit 2, the drive control circuit 5 and the commercial power 1 are connected. The lamp tube 6 includes a plurality of LED lamp beads as light sources. The lithium battery 3 is indirectly connected to the lamp tube 6 and directly connected to the detection control circuit 4 and the charging management circuit 2 for outputting power to the lamp tube 6 . The drive control circuit 5 is connected to the mains 1 and the lamp 6 for providing constant current driving power to the lamp 6 . The detection control circuit 4 is connected to the lamp tube 6, the lithium battery 3 and the driving control circuit 5, and is used for judging the mains power failure and normal switch operation, and controls the lithium battery 3 to output power to the lamp tube 6 when the mains power failure occurs. The charging management circuit 2 is connected to the commercial power 1 and the lithium battery 3 for charging the lithium battery 3 .

Further, the detection control circuit 4 includes a counter and a timer (both are not shown), wherein the counter is used to record the number of power outages, and sends a control signal to make the lithium battery 3 output power to the lamp tube 6 when the number of power outages is one, When the power is cut off twice in a row, it is judged as a normal switch operation, so that the drive control circuit 5 stops supplying the constant current drive power to the lamp tube 6 . The timer is connected with the counter, and is used to set the length of time between two consecutive power failures to avoid misoperation of the counter.

This preferred embodiment can realize two assembly structures, one is a built-in structure, the lithium battery 3, the drive control circuit 5 and the detection control circuit 4 are located inside the lamp tube 6; the other is an external structure, and the three are located outside the lamp tube 6 , and the drive control circuit 5 and the detection control circuit 4 are provided with a casing outside, and the lithium battery 3 is fixed separately.

In detail, in the built-in structure, the counter is CD4017B, which is a CMOS decade counter with ten decoded outputs. The timer is a 555 timer, and the models include NE555, LMC555, etc., and generally use chips of the COMS process, and the energy consumption is relatively low. CD4017B and 555 form a detection control circuit 4, which is used to judge the normal switch operation of power failure or extinguishing the light: switch once, the emergency light works, and is powered by the lithium battery 3. Boost the voltage to supply power to the LED lamp beads in the lamp tube 6; switch on and off twice, the lamp tube 6 goes out, and the switching interval is 1-5 seconds, which can be set. The boost chip is XL6005, which is a DC-DC boost constant current chip, which is used to boost the output of the lithium battery 3 to provide constant current DC power for the LED load in the lamp tube 6. The charging management circuit 2 includes CN3703, which is a charging management chip of the lithium battery 3, and is used for charging the lithium battery 3.

On the other hand, in the external structure, the boost chip can be SD42560, which is a DC-DC boost constant current chip, which is used to boost the lithium battery 3 to provide constant current DC power for the LED load. The charging management circuit 2 includes CN3703, which is a lithium battery charging management chip, and the circuit formed by it is used to charge the lithium battery 3 . You can also set BPC817C optocoupler, the circuit composed of optocoupler and MOS is used to judge whether there is power in the mains. When there is power, the mains 1 supplies power to the LED load. When there is no power, the lithium battery 3 supplies power to the LED load. As an emergency light.

In the drive control circuit 5, the LD7591 chip can be used as a single-stage PFC controller, the TSM103 chip can be used as a dual operational amplifier and voltage reference, and the BPC817C chip can be used as an optocoupler to form a PFC AC-DC isolated constant current drive circuit.

In this preferred embodiment, for the built-in power supply solution, the power supply and the battery are inside the lamp tube. For the external power supply solution, the power supply and battery are outside the lamp tube, the power supply is installed in a shell, the battery is fixed in other ways, and two wires are connected to the battery terminal of the power supply. There are 3 lines in the input part of the external emergency light, and a switch is connected to one end of the input, which is used to control the normal lighting of the lamp tube 6. The other line is directly connected to the mains 1, and is used to judge whether there is a power failure. If power failure, switch to lithium battery 3 to supply power, as emergency light. When there is electricity, the on and off of the lamp tube 6 is controlled by a switch, which is regarded as a conventional LED lamp tube. The output part is composed of six terminals, which can add 2 colored LED indicators. Terminals 5 and 6 are connected to the positive and negative poles of the external lamp 6; terminals 3 and 4 are connected to the test switch, which is used for normal maintenance of the emergency light function Whether it is normal, when the city power is on and the lamp is turned off, turn on the test switch, the emergency light will be on, indicating that the emergency function is normal. If it is not on, it means that the emergency function is out of order, the lithium battery 3 is out of power, or it is not connected properly, the lithium battery 3 is damaged, etc., and further maintenance is required. Terminals 1 and 2 are connected to the positive and negative electrodes of the lithium battery 3 . When the mains 1 has electricity, the red indicator light is on to indicate that the lithium battery 3 is in a charging state, and the green indicator light is on to indicate that the lithium battery 3 is in a fully charged state.

The connection methods of the built-in emergency light include single-end power supply and double-end power supply. Only two live wires and neutral wires are needed. The existing traditional fluorescent lamps can be replaced with LED emergency lamps only by slightly changing the wiring of the existing fluorescent lamps. The control method of the built-in emergency light is to realize the normal on and off of the light tube through the switching times and the switching interval time. When the utility power is on, the switch is turned on, and the whole light is normally lit, and the switch is turned off once, and the emergency light is on, and turned on again, the lamp tube is lit, and the whole light is off when it is turned off again. The switch interval is within 5S (the interval time can be set during design), and the light cannot be turned off after more than 5 seconds, and it still switches between emergency light and regular lighting. In this way, it can be realized that the built-in emergency light tube is used as a conventional light tube at ordinary times, and is used as an emergency light during a power failure, and the switch is realized by switching twice at ordinary times.

In summary, the utility model combines the general lighting system and the emergency lighting system into one system. Under normal conditions, it plays the role of general lighting. In an abnormal state, it plays the role of emergency lighting. The utility model can be installed on the traditional fluorescent lamp stand, without finding additional space for installation, and without arranging line sockets to supply power to the emergency lamp. It can be used as a normal lamp when it is powered on, and it can be turned off when it is not in use. When it encounters a power failure, it can be powered by the battery to continue to use. In some large-scale shopping malls, the utility model can be installed in the fluorescent lamp frame according to a certain area ratio. When the power failure occurs, the common conventional lights are extinguished, and the LED emergency fluorescent lamp can continue to work to provide lighting for fire escape. The utility model can also be used in the family. It is used as an ordinary lamp at ordinary times, and is used as an emergency lamp during a power outage, so that the normal life will not be affected due to a power outage. The LED emergency fluorescent lamp improves the utilization rate of the lamp and reduces idle waste. The cost of purchasing ordinary emergency lights and the cost of wiring specially for emergency lights are reduced, and space is saved.

It can be known from technical knowledge that the utility model can be realized through other implementations without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the utility model or within the range equivalent to the utility model are included in the utility model.

Claims (6)

1. A LED light tube with both conventional lighting and emergency lighting functions, characterized in that it comprises: Light tubes, including multiple LED lamp beads as light sources; a battery, connected to the lamp tube, for outputting power to the lamp tube; A drive control circuit, connected to the mains and the lamp tube, for providing constant current drive power to the lamp tube; The detection control circuit is connected to the lamp tube, the battery and the driving control circuit, and is used for judging the mains power failure and normal switch operation, and controlling the battery to output power to the lamp tube when the mains power failure occurs. 2. The LED lamp tube having conventional lighting and emergency lighting functions according to claim 1, wherein the detection control circuit comprises: The counter is used to record the number of power outages, and when the number of power outages is one, it sends out a control signal to make the battery output power to the lamp tube. When there are two consecutive power outages, it is judged as a normal switch operation and the drive control circuit stops supplying power to the lamp tube. The above lamp provides constant current drive power; A timer, connected with the counter, is used to set the time length between two consecutive power failures to avoid misoperation of the counter. 3 . The LED lamp tube having both conventional lighting and emergency lighting functions according to claim 1 , wherein the battery, the driving control circuit and the detection control circuit are located inside the lamp tube. 4 . 4. The LED lamp tube having both conventional lighting and emergency lighting functions according to claim 1, wherein the battery, the drive control circuit and the detection control circuit are located outside the lamp tube, and the A casing is provided outside the drive control circuit and the detection control circuit. 5 . The LED lamp tube having functions of both conventional lighting and emergency lighting according to claim 1 , wherein the battery is a lithium battery. 5 . 6. The LED lamp tube having both conventional lighting and emergency lighting functions according to claim 1, further comprising: The charging management circuit is connected to the mains and the battery, and is used for charging the battery.

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