CN2684515Y - Lighting fixtures with emergency lighting functions - Google Patents

Abstract

The utility model relates to a lighting device with emergency lighting function, which comprises a fluorescent lamp tube, a controller, a commercial power circuit which can process commercial power for lighting, and a standby circuit which can provide standby power, wherein the above devices are combined, and the on-off of the fluorescent lamp can be controlled in a mode of turning on and off a power switch according to the purpose of a user when the commercial power is normally supplied under the condition of not changing the original wiring of a building; moreover, when the mains supply is powered off, the circuit of the power supply can be automatically switched to the standby power supply to supply power by the standby power supply so as to generate the effect of emergency lighting; and when the mains supply is recovered, the circuit of the power supply is automatically switched to the mains supply circuit, and the mains supply is used for supplying power so as to recover the normal lighting function.

Description

Lighting fixtures with emergency lighting functions

technical field

The present invention relates to a lighting appliance with emergency lighting function, in particular to a device that integrates normal lighting and emergency lighting without changing the wiring of the original building.

Background technique

Emergency lighting equipment generally refers to a device that continues to provide lighting effects when the normal power (mains power) is interrupted. In case of emergency, guide the asylum to escape smoothly. The guidance and escape device includes the exit indicator light directly above the safety door and the evacuation direction indicator lights at the corners of each aisle. The purpose of setting is to allow the direction of the evacuation passage and the position of the safety door to be identified in the dark when the normal power supply is interrupted. In recent years, with the gradual improvement of living quality, the design of buildings must not only emphasize comfort, but also meet safety considerations.

The typical emergency lighting equipment, which can be seen in the market at present, is mostly wall-mounted emergency lighting (Emergency Lighting). Emergency lights are generally installed in corridors, stairwells, passages and other places that usually rely on artificial lighting in various places where evacuation needs to pass. Usually, the emergency lighting is equipped with an AC-DC automatic switching device, usually powered by AC (AC) power supply and outputting a corresponding DC power supply, automatically charging the backup battery, automatically stopping charging when the power is saturated, and automatically switching to the backup battery after a power failure The circuit is powered by backup power for emergency lighting purposes.

However, because emergency lights are originally designed independently of the original lighting design of various places, consumers often purchase them separately and install them in buildings. However, as mentioned above, these emergency lights will only be placed in the corridors, stairwells, passages and other key locations that usually rely on artificial lighting. , can only be irradiated by the wall, and the illuminated area is limited.

However, the lighting equipment in general homes or workplaces, such as fluorescent lamps, are designed with switches to turn off or conduct the circuit, so as to control the fluorescent lamps to be turned on or off. Therefore, ordinary fluorescent lamps only have lighting functions when there is a mains power supply. On the contrary, the operation mode of the traditional emergency lighting is just the opposite of that of general lighting equipment. It has a lighting function when the mains power fails, and automatically goes out when the mains power supply is normal. Therefore, the creator of the present invention thinks that if a new type of equipment for lighting can be provided, this equipment can be used for fluorescent tubes or light bulbs, and light-emitting diodes such as LEDs, so that fluorescent tubes or light bulbs for general lighting can be used to emit light. Diodes, such as LEDs, can still have the lighting function when the mains power supply stops, combining the normal lighting device and the emergency lighting device into one.

The most difficult part of the integration is how to tell if the power is out or the user turns off the lights. The solution on the market is to use three wires to control (the circuit of the building must be reconfigured), some use a remote control, and some use a rope to control the switch; in short, none of the solutions used by the conventional market is economical and simple.

Utility model content

One purpose of the present invention is to provide a lighting appliance with emergency lighting function, so as to save the cost of purchasing additional emergency lighting devices.

Another object of the present invention is to provide a lighting fixture with an emergency lighting function, so that the lighting function can be provided both in the normal mains power supply state and the mains power failure state.

In order to achieve the above purpose, the lighting fixture with emergency lighting function of the present utility model includes:

a lighting fixture;

A commercial power circuit, which receives a commercial power and outputs it after processing it into a power source suitable for driving the lighting fixture;

a backup circuit having a battery and outputting a backup power source suitable for driving the lighting fixture; and

A controller is bridged between the lighting fixture, the mains circuit and the standby circuit, the controller includes a control unit and a selection unit, the feature is that the control unit has a switch, and when the switch is When switching, a pulse signal of voltage or current will be generated. The control unit receives this pulse signal and outputs a control signal with a potential different from that before switching. This control signal is connected to the controlled switch and is responsible for stopping or activating the mains circuit. And the selection unit determines whether the circuit of the lighting appliance is connected to one of the backup circuit or the mains circuit according to the presence or absence of the mains power supply; when the mains power supply is normal, the mains power circuit is controlled by the The control signal output by the unit is activated or deactivated; and when the utility power is interrupted, the controller connects the lighting fixture to the backup circuit to receive backup power for emergency lighting, and when the utility power supply is normal According to the user's purpose, the controller controls the lighting device to receive the power processed by the mains circuit for lighting, or to turn off without receiving any power.

The feature of this new model is that it allows the emergency lighting device and the normal lighting device to be combined into one. The most attractive feature of this new model is that the circuit of the building does not need to be modified, which can save costs and increase the lighting area to facilitate the escape function. .

An example shows that under this idea, the new model is applied to fluorescent lamps, including fluorescent tubes and a controller. The controller can judge whether the mains power supply is normal, so as to decide when to use the mains power or the backup power supply. Bright fluorescent tube, a mains circuit (i.e. electronic ballast), which can provide a device to light the fluorescent lamp with the mains when the mains is powered, and a backup circuit, which can provide a device for lighting the fluorescent lamp with the backup power when the power is cut off; And when the mains power supply is normal, the user can use the switch (switch) ON/OFF to control the lighting and extinguishing of the fluorescent lamp, so as to achieve the desired effect of the user.

Description of drawings

Shown in Fig. 1 is the state schematic diagram of the preferred embodiment of the present utility model;

Fig. 2 is the schematic block diagram of the embodiment of the utility model;

Fig. 3 is a detailed circuit diagram of the mains circuit 3 in Fig. 2;

Fig. 4 is the detailed circuit diagram of standby circuit 4 among Fig. 2;

FIG. 5 is a detailed circuit diagram of the controller 2 in FIG. 2 .

Detailed ways

The technical content, features and effects of the new model applied to fluorescent lamps will be clearly understood in the following detailed description of preferred embodiments with reference to the accompanying drawings.

Generally, the fluorescent lamps used in the market are connected to the normal supply of mains electricity, and the user switches the switch to control the power on or off of the fluorescent lamp itself, so as to achieve the effect of lighting the lamps; however, the general fluorescent lamps designed in this way cannot Self-judgment of normal power supply or power failure, in order to combine the emergency lighting device with the usual lighting device, under the normal mains power supply, this design uses the activation of the power switch, through a special device, that is, the new type of controller. After processing, signals with different potentials can be generated, which can be used as a new method to control the lighting or extinguishing of fluorescent lamps. Keep in the energized state, the voltage or current applied to the fluorescent lamp will only generate a pulse signal when the power switch (SWITCH) is switched. To achieve this goal, the power switch (SWITCH) of the fluorescent lamp must be kept in the energized state ( Always on), when the switch button is pressed, it is in the power-off state, and it will automatically restore the power-on state when it is not pressed, thus causing an instant power-off effect. When the user wants to turn on or turn off the light, the switch (SWITCH) itself will be instantaneous A pulse signal of voltage or current will be generated when the power is cut off, and the instantaneous power failure will not cut off the mains power supply for a long time (this is different from the general switch switching lamps on the market at present), the fluorescent lamp itself cooperates with the above-mentioned The pulse signal of the new type of controller is processed and controlled by the new type of controller to complete the user's requirements for lighting or extinguishing the lamps. When the mains power is cut off, the new type of controller can automatically transfer the fluorescent lamp circuit to the backup circuit to use the backup power supply. Power supply to light the fluorescent lamp, enter the emergency lighting mode, this is the feature of this new model. In detail, please refer to Fig. 1, wherein, the first state is that when the mains power is cut off, the new controller can automatically switch the power circuit of the fluorescent lamp to the one that is powered by the backup power of the backup circuit for emergency lighting. State; State 2 and State 3 are the states when the mains power supply is normal. State 2 means that the user turns on the fluorescent lamp for lighting, and State 3 means that the user turns off the fluorescent lamp so that it goes out. When the mains power is cut off, regardless of whether the fluorescent lamp is in state 2 or 3, the device of this new type will automatically transfer the power circuit of the fluorescent lamp to state 1 for emergency lighting.

As shown in Figure 2, the present invention is a preferred embodiment of a lighting appliance with an emergency lighting function, which generally has a daylight tube 1, a controller 2, a mains circuit 3, a backup circuit 4, and a control signal C1 The controlled switch 5 enables the fluorescent tube 1 to be controlled by the controller 2, and the mains circuit 3 is selected to supply the mains power or the backup circuit 4 is selected to supply the backup power.

As shown in FIG. 3 , the commercial power circuit 3 is an electronic ballast, which is an electrical device used to convert and process commercial power to make it suitable for driving fluorescent lamps. It roughly includes an AC-to-DC circuit 31 and an oscillation circuit 32 . The AC-to-DC circuit 31 accepts the mains input and converts it into DC +VCC, -VCC output to the oscillation circuit 32, and the oscillation circuit 32 converts the DC power into a high-frequency signal and feeds it to the fluorescent tube 1 to drive the fluorescent tube 1 illumination. Similarly, as shown in Figure 4, the backup circuit 4 also has a DC oscillating circuit 42 and a charging circuit 41, the DC power output by the backup power supply (such as a rechargeable battery, etc.) can be processed by the oscillating circuit 42 and input to the fluorescent tube 1, The fluorescent tube 1 is driven to light up for emergency lighting. Here, since the fluorescent tube 1 , the mains circuit 3 and the backup circuit 4 are all well-known devices, and are not the focus of improvement in this case, they will not be described in detail here.

The controlled switch 5 shown in Figure 2 can receive a control signal and determine whether the switch is on or off according to the signal. In the actual circuit, the controlled switch 5 can use a magnetic switch or a relay or other semiconductors. Components, here for the convenience of description, are represented by magnetic switches.

The new controller 2 allows the user to control the lighting and extinguishing of the fluorescent tube 1 when the mains power is normally supplied, and can automatically switch to the backup power supply using the backup circuit to turn on and light the fluorescent tube 1 when the mains power is interrupted. The device 2 can automatically switch the fluorescent tube 1 to the mains circuit 3 or the standby circuit 4 due to the change of the power supply state or the user's different choices. As shown in FIG. 5 and FIG. 2 , the controller 2 of the present invention includes a control unit 21 and a selection unit 22 . This control unit 21 controls the opening and closing of the fluorescent tube 1 according to the user's purpose of use, and outputs the signal C1 to the controlled switch 5. In this way, the selection unit 22 and the controlled switch 5 can receive different signals and the market. Whether the electric power supply is self-judged, and the fluorescent tube 1 is automatically controlled to be in any state of state 1, state 2 or state 3, so as to achieve the functions and effects of the present invention.

The control unit 21 outputs control signals of different potentials to the controlled switch 5 when the user controls the fluorescent lamp to turn on and off, so as to inform the controlled switch 5 of the user's choice. For example, when the user chooses to turn on the fluorescent lamp, the controller 2 corresponds to Output a high-potential control signal, the controlled switch 5 becomes a circuit, and the fluorescent lamp is turned on. If the user chooses to turn off the fluorescent lamp, the controller 2 outputs a low-potential control signal, and the controlled switch 5 becomes an open circuit, so that the fluorescent lamp Turn off, the switch (SWITCH) repeats the same action to achieve the effect of lighting and extinguishing the lamp.

In this embodiment, the control unit 21 includes a switch 211, which allows the user to control the fluorescent lamp on and off by momentary pressing and release, so that the fluorescent tube 1 can be controlled on and off when the mains power supply is normal. This switch 211 is a normally closed (always on) switch, that is, the switch 211 is normally closed and in a conducting state, only when the switch 211 is pressed, it will be open and disconnected, and when the switch 211 is no longer pressed, then Will immediately automatically return to the closed state, so the control unit 21 of the present invention further includes a trigger 212, a switch 211, and an amplifier 213 (such as a Schmitt trigger amplifier), and its output terminal is connected to the timing terminal T of the trigger 212. Negative output terminal of flip-flop 212 Q is fed back to the input terminal D, and the control signal output by the positive output terminal Q of the flip-flop 212 is set to be represented by C1. In this way, when the control signal C1 is originally a high potential signal, the negative output terminal at this time The signal of Q and input terminal D is a low potential signal. If the switch 211 button is pressed at this time, the signal received by the timing terminal T of the flip-flop 212 will change from the original high potential signal to a low potential signal, and After the button of the switch 211 is released, it immediately returns to a high potential signal. When the trigger 212 receives the positive wave edge generated by the instantaneous opening and closing of the switch 211, it will transmit the signal of the input terminal D to the output terminal Q, Q, at this time, the control signal C1 output by the positive output terminal Q will become a low potential signal, and the negative output terminal The signal output by Q will become a high-potential signal, and the input signal of the input terminal D will also become a high-potential signal; similarly, when the user presses the switch 211 again and releases it immediately, a positive signal will be generated again. The wave edge prompts the flip-flop 212 to transmit the high potential signal of the input terminal D to the output terminal Q, Q, The signal output by Q will turn into a low potential signal, so the control signal C1 output by the positive output terminal Q will become a high potential signal again. Therefore, the user can sequentially output signals of different potentials to the selection unit 22 by pressing and releasing the switch 211 of the control unit repeatedly and momentarily, so that the effect of controlling the fluorescent lamp on and off can be achieved. It should be noted that although the switch 211 in this embodiment is a normally closed switch, those skilled in the art will know that other types of switches on the market can also be used, such as rotary switches, toggle switches, etc., only needing a control unit 21 When the user wants to control the fluorescent lamp to turn on and off the switch, it is sufficient to output control signals with different potentials, and should not be limited to the content disclosed herein for the purpose of illustration.

Those who are familiar with digital circuit designers should know that the circuit of the flip-flop 212 can be replaced by other flip-flops, such as T-type flip-flops. One of the key points of this new model is to use the changes of pulse signals of voltage or current, and use them as lighting or The method of extinguishing the light source further combines the emergency lighting equipment with the normal lighting equipment. Although the circuit of the control unit 21 can be replaced by other circuits, as long as the pulse signal change of voltage or current is used as the way to turn on or extinguish the light source method, the design of integrating the usual lighting device and the emergency lighting device should be included in the scope of this patent.

Furthermore, for the convenience of explanation, it is first assumed that when the control signal C1 is a high potential signal, it means that the user wants to control the fluorescent lamp to turn on and turn on (as shown in the second state in Figure 1), and when the control signal C1 is a low potential signal When the signal is on, it means that the user wants to control the fluorescent lamp to turn off and go out (as shown in state 3 in Figure 1). The selection unit 22 determines whether the fluorescent lamp 1 is connected to the commercial power circuit 3 or the backup circuit 4 according to the presence or absence of the commercial power, and the controlled switch 5 receives the C1 control signal to be in the on-circuit or off-circuit state. Change among state one, state two, and state three as shown in Figure 1 to achieve the dual purpose of normal lighting and emergency lighting. In detail, when the mains power is cut off, the circuit of the fluorescent tube 1 is automatically switched to the backup circuit 4 via the selection unit 22, so as to be powered by the backup power supply to produce the effect of emergency lighting (that is, the state shown in FIG. 1 1); and when the mains power supply returns to normal, the circuit of the fluorescent tube 1 will be automatically transferred to the mains power circuit 3 through the selection unit 22; The control switch 5 is in an open circuit state and cannot obtain power supply and goes out (that is, state three as shown in Figure 1). The selection unit 22 of this embodiment has two selectors (the selector on the circuit can be realized by different components, such as a selector composed of a semiconductor CMOS or a bipolar circuit, and the embodiment here uses a relay as a selector ). The relays 221, 222 are relays with two input terminals, one output terminal and one selection terminal, and the output terminals of the two are respectively connected to the two ends of the fluorescent tube 1, and the two relays 221, 222 are located on the upper right side. The input terminals are respectively connected to the two output terminals O2 and O3 of the backup circuit 4 (as shown in Figures 4 and 5). O1, O4 (as shown in Figure 3, 5). Furthermore, the selection terminals of the two relays 221 and 222 located directly below are respectively connected to the mains, and when the mains is normally supplied, the output terminals of the relays 221 and 222 are connected to the input terminals O1 and O4 located on the lower right side. , is powered by the commercial power of the commercial power circuit, and when the power is cut off, the relays 221, 222 connect the output terminals to the input terminals O2 and O3 located on the upper right side, so that the two ends of the fluorescent tube 1 are connected to the standby circuit 4 The output terminals are O2 and O3, which are powered by the backup power supply. The control terminal of the controlled switch 5 (please refer to FIG. 2 and FIG. 5 ) is connected to the output terminal Q of the flip-flop 212 of the control unit 21 to receive the control signal C1. When the control signal C1 is a high potential signal , the controlled switch 5 is in the conduction state, then the commercial power circuit 3 receives the input of the commercial power and outputs it to its output terminals O1 and O4, and outputs to the fluorescent lamp through the lower input terminals on the right side of the relays 221 and 222, and is powered by the commercial power. Light the fluorescent lamp (state 2 as shown in Figure 1), and when the control signal C1 is a low potential signal, the controlled switch 5 is in an open circuit state, and the mains circuit 3 cannot be supplied with mains power, and the fluorescent lamp is shut down due to no power supply. Off (state 3 as shown in Figure 1).

The state switching of the fluorescent lamp will be further described below based on the above-mentioned components and their interrelationships. First, if the mains power supply is normal, the output terminals of the relays 221 and 222 will be automatically connected to the input terminals on the lower right side, and then the fluorescent tubes will be determined according to the level of the control signal C1 received by the controlled switch 5. On or off, when the user wants to turn on the fluorescent lamp and momentarily presses and releases the switch 211, the control unit 21 will output a high-potential control signal C1, and the controlled switch 5 is turned on, so that the fluorescent lamp 1 passes through the relays 221, 222 Connect to the output terminals of the mains circuit 3, that is, O1 and O4, and enter the second state shown in Figure 1 for lighting; at this time, if the user wants to turn off the fluorescent lamp and momentarily presses the switch 211 again, the control unit 21 outputs The control signal C1 of the control signal C1 will become a low potential signal, and the controlled switch 5 is in an open circuit state, causing the fluorescent tube 1 and the mains circuit 3 to go out due to no power supply (that is, state three shown in FIG. 1 ). Therefore, under the condition of normal mains power supply, the user can control the fluorescent lamp by pressing and releasing the switch 211 multiple times momentarily. In state 2 and state 3 shown in FIG. 1 , switching back and forth produces the effect of turning on and off the fluorescent lamp. If, when the mains power is interrupted (i.e. power failure), the relays 221, 222 will automatically switch the output terminals to be connected to the output terminals O2 and O3 of the backup circuit 4 located on the upper right side, so that the backup circuit 4 can pass through the relay 221, The output terminal on the left side of 222 is connected to the fluorescent tube 1 and powered by the backup power of the backup circuit 4, so the fluorescent lamp can enter the state shown in Figure 1 for emergency lighting.

According to the above, the fluorescent lamp of the present invention can be used as lighting equipment that can be controlled by the user at ordinary times (that is, when the mains power supply is normal), and when the power is cut off, the selection unit 22 of the controller 2 and the backup circuit 4 The function of emergency lighting can be automatically performed, so that users do not need to purchase additional emergency lighting equipment to effectively save costs. In addition, this design does not require an additional third wire, so it is compatible with old buildings. It needs to be re-constructed, and the fluorescent lamps have a wide lighting area and a wide range of applications.

In addition, although the aforementioned embodiment only discloses lighting fixtures with emergency lighting functions, those skilled in the art will know that the controller 2 and the backup circuit 4 can also be integrated into a control device to be used in conjunction with existing fluorescent lamps. Alternatively, the controller 2, the mains circuit 3 and the backup circuit 4 are integrated into one device to be used in conjunction with the fluorescent tube 1. The controller 2 uses two relays for the convenience of explanation. 4 When integrated into one, the number of relays can be reduced, and the relays can also be replaced by other semiconductor components. The performance is better, and the utility model of the present invention can achieve the same purpose by replacing the equivalent structure, wherein the more specific methods are as follows:

For one, if the fluorescent tube 1 is still used, the mains circuit 3 (electronic ballast) is changed to a traditional ballast. When using this device, a starter (STARTER) should be added to the input end of the fluorescent tube power supply, so this controller 2 can achieve the same function.

Second, if the fluorescent tube 1 is changed into various low-voltage bulbs or other light-emitting diodes such as LEDs, a symmetrical transformer is used to replace the mains circuit 3, and the mains is powered by a transformer or a rectifier, while the standby The DC oscillating circuit 42 of the circuit 4 is modified or removed, and is powered by a backup power supply of a symmetrical backup circuit such as a rechargeable battery, so that the controller 2 can achieve the same function.

Its third series if the fluorescent tube 1 and the mains circuit 3 are both integrated into one product and sold separately on the market, then the DC oscillating circuit 42 of the backup circuit 4 is modified so that when the mains power is cut off, the backup circuit 4 can Output a power supply that is symmetrical to the mains, so that the controller 2 can achieve the same function.

The above is only a preferred embodiment of the utility model, and should not limit the scope of the implementation of the utility model; The principle of generating pulse signals of voltage or current, after being processed by a special device, that is, the controller 2 detailed in this patent, the lighting fixture can be turned on and off according to the purpose of the user when the mains power supply is normal. ON-OFF) way to control the lighting and extinguishing of lighting appliances; and when the mains power is cut off, the power circuit will be automatically transferred to the backup circuit to be powered by the backup power supply, thus producing the effect of emergency lighting. Furthermore, when the mains power supply is restored, the circuit of the power supply will be automatically switched to the mains power circuit, and the normal lighting function will be restored by the mains power supply. Simple equivalent changes and modifications made in the foregoing description of the new model should still fall within the scope of the present utility model.

Claims (2)

1. ligthing paraphernalia with Emergency Light function comprises:

One ligthing paraphernalia;

One mains circuit is to export after accepting a civil power and handling the power supply of this civil power for suitable this ligthing paraphernalia of driving;

One stand-by circuit, cording have a battery and exportable to be fit to drive the stand-by power supply of this ligthing paraphernalia; And

One controller, system bridges between this ligthing paraphernalia and this mains circuit and this stand-by circuit, this controller comprises a control unit and a selected cell, it is characterized in that: this control unit has a switch, and when being switched, this switch can produce the voltage or the pulse signal of electric current, this control unit receives this pulse signal and exports a current potential and the control signal of switching preceding different potentials, this control signal is connected to controlled switch, be responsible for stopping or activating the mains circuit, and this selected cell system is according to the having or not of this civil power, decide the circuit of this ligthing paraphernalia whether be connected in this stand-by circuit or this mains circuit one of the person; When commercial power supply just often, the control signal that the mains circuit is exported by this control unit activates or stops; And when this civil power interrupts, this controller makes this ligthing paraphernalia be connected to this stand-by circuit, carry out Emergency Light to receive stand-by power supply, and work as this commercial power supply just often, this controller is controlled according to user's purpose and this ligthing paraphernalia is received through the power supply of this mains circuit processing throw light on, or does not receive any power source and extinguish.

2. the ligthing paraphernalia that has the Emergency Light function according to claim 1, it is characterized in that: this selected cell comprises the selector more than, described each selector has two inputs, one selecting side and an output, the output of selector is connected to two inputs of this ligthing paraphernalia, one input is connected to the output of this stand-by circuit, another input then is connected in the output of mains circuit, and the selecting side of this selector, during at this civil power of connection and in this commercial power supply, make the output of this selector, be connected to the output of mains circuit, and when this civil power interrupts, make the output of this selector, be connected to this stand-by circuit output and be connected, so that the stand-by power supply of this stand-by circuit is supplied to this ligthing paraphernalia.

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