WO2019072114A1 - LED EMERGENCY LIGHTING BULB - Google Patents

LED EMERGENCY LIGHTING BULB Download PDF

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Publication number
WO2019072114A1
WO2019072114A1 PCT/CN2018/108555 CN2018108555W WO2019072114A1 WO 2019072114 A1 WO2019072114 A1 WO 2019072114A1 CN 2018108555 W CN2018108555 W CN 2018108555W WO 2019072114 A1 WO2019072114 A1 WO 2019072114A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
led
light bulb
controller
emergency light
Prior art date
Application number
PCT/CN2018/108555
Other languages
English (en)
French (fr)
Inventor
Yehua Wan
Lifeng LING
Songan YE
Original Assignee
Zhejiang Shenghui Lighting Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Shenghui Lighting Co., Ltd. filed Critical Zhejiang Shenghui Lighting Co., Ltd.
Publication of WO2019072114A1 publication Critical patent/WO2019072114A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • H02J9/065—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads for lighting purposes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/14—Controlling the light source in response to determined parameters by determining electrical parameters of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present disclosure relates to lighting technologies and, in particular, to a light-emitting diode (LED) emergency light bulb.
  • LED light-emitting diode
  • a light-emitting diode (LED) light source usually has a high light-emitting efficiency and a long lifetime, generates low heat, and consumes low energy.
  • a light bulb using the LED light source e.g., an LED light bulb
  • An LED emergency light bulb can perform reminding function in emergency situations, for example, accident emergency lighting, emergency exit signs, emergency indicator lights, etc.
  • a conventional LED emergency light bulb includes a mounting bracket, a frame, and an LED and a battery disposed in the frame.
  • the LED emergency light is connected to an electrical grid, and the electrical grid charges the battery.
  • the electrical grid charges the battery.
  • the electrical grid supplies power to the LED emergency light bulb to emit light.
  • the battery supplies power to the LED emergency light bulb to emit light.
  • the conventional LED emergency light bulb is generally bulky, inconvenient to carry, and has a single function, which limits the marketing of the conventional LED emergency light bulb to some degree.
  • the LED emergency light bulb includes a casing structure, an LED light-emitting circuit, a lamp cover, a lamp head, a function switch and a control circuit.
  • the casing structure includes a first open end, a second open end, and a peripheral wall.
  • the LED light-emitting circuit is disposed at the first open end of the casing structure.
  • the lamp cover covers the LED light-emitting circuit.
  • the lamp head is disposed at the second open end of the casing structure.
  • the function switch is disposed on an outer surface of the peripheral wall of the casing structure and configured to generate a notification signal upon being triggered.
  • the control circuit is disposed inside the casing structure and is connected to the function switch and the LED light-emitting circuit. The control circuit is configured to control an operation state of the LED light-emitting circuit according to the notification signal.
  • the control circuit includes an electrical grid detecting circuit.
  • the electrical grid detecting circuit is configured to detect whether the LED emergency light bulb is connected to an electrical grid.
  • the electrical grid detecting circuit can generate a first detection signal in response to detecting the LED emergency light bulb is connected to the electrical grid.
  • the electrical grid detecting circuit can generate a second detection signal in response to detecting that the LED emergency light bulb is not connected to the electrical grid.
  • a controller is connected to the electrical grid detecting circuit and the LED light-emitting circuit.
  • the controller is configured to control the LED light-emitting circuit to emit light in response to receiving the first detection signal from the electrical grid detecting circuit.
  • the controller is also configured to control the LED light-emitting circuit to stop emitting light in response to receiving the second detection signal from the electrical grid detecting circuit.
  • the control circuit further includes a voltage detecting circuit and a battery.
  • the voltage detecting circuit is connected to the controller and is configured to detect whether there is electricity in the electrical grid.
  • the voltage detecting circuit can send a third detection signal to the controller in response to detecting that there is electricity in the electrical grid and send a fourth detection signal to the controller in response to detecting that there is no electricity in the electrical grid.
  • the battery is connected to the controller and the LED light-emitting circuit.
  • the controller is further configured to control the electrical grid to provide electrical power to the LED light-emitting circuit in response to receiving the third detection signal.
  • the controller is also configured to control the battery to provide electrical power to the LED light-emitting circuit in response to receiving the first detection signal and the fourth detection signal.
  • the controller can control the electrical grid to charge the battery in response to receiving the third detection signal.
  • control circuit further includes a first voltage-current conversion circuit, a second voltage-current conversion circuit, and a third voltage-current conversion circuit.
  • the electrical grid is connected to the LED light-emitting circuit through the first voltage-current conversion circuit.
  • the electrical grid is connected to the battery through the second voltage-current conversion circuit.
  • the battery is connected to the light-emitting circuit through the third voltage-current conversion circuit.
  • the function switch includes a test button and an emergency-function switch.
  • the test button is connected to the controller.
  • the emergency-function test button is connected to the test button and can send the notification signal to the controller in response to the test button being closed.
  • the control can also control the LED light-emitting circuit to emit light in an emergency working state in response to receiving the notification signal.
  • the function switch is a first switch
  • the notification signal is a first notification signal.
  • the LED emergency light bulb further includes a second function switch disposed on the outer surface of the peripheral wall of the casing structure.
  • the second function button includes an auxiliary button and an auxiliary circuit.
  • the auxiliary button is connected to the controller.
  • the auxiliary circuit is connected to the auxiliary button and is configured to send a second notification signal to the controller in response to the auxiliary button being closed.
  • the controller is further configured to control the LED light-emitting circuit to emit light in an auxiliary working state according to the second notification signal.
  • the second function switch can adjust a brightness of the LED light emergency light bulb.
  • the auxiliary button includes a brightness adjustment button.
  • the brightness adjustment button is connected to the controller and includes a first gear position and a second gear position.
  • the auxiliary circuit includes a brightness adjustment circuit.
  • the brightness adjustment circuit is connected to the brightness adjustment button.
  • the brightness adjustment circuit can send a first brightness adjustment signal to the controller in response to the brightness adjustment button being at the first gear position.
  • the brightness adjustment circuit can also send a second brightness adjustment signal to the controller in response to the brightness adjustment button being at the second gear position.
  • the controller can control the LED light-emitting circuit to emit light with a first brightness in response to receiving the first brightness adjustment signal, and control the LED light-emitting circuit to emit light with a second brightness in response to receiving the second brightness adjustment signal.
  • the controller can also control the brightness of the LED emergency light bulb by controlling a magnitude of a current input to the LED light-emitting circuit.
  • the LED emergency light bulb consistent with the preset disclosure can include a casing structure having two open ends, an LED light-emitting circuit disposed at one end of the casing structure, a lamp cover covering the LED light-emitting circuit, a lamp head disposed at the other end of the casing structure, a control circuit disposed inside the casing structure.
  • the LED emergency light bulb can include one or multiple function switches.
  • the control circuit can be connected to the function switch, and the control circuit can be connected to the LED light-emitting circuit.
  • the LED emergency light bulb can include multiple function switches, such that the LED emergency light bulb can have different functions.
  • the control circuit can have a compact structure, reducing the overall volume of the LED emergency light bulb. Also, it is simple to install the LED emergency light bulb. Therefore, the market competitiveness of the LED emergency light bulb can be promoted.
  • FIG. 1 is an exploded perspective view of an LED emergency light bulb according to some embodiments of the present disclosure
  • FIG. 2 is an assembled perspective view of the LED emergency light bulb of FIG. 1;
  • FIG. 3 is a circuit diagram of an LED emergency light bulb according to some embodiments of the present disclosure.
  • FIG. 4 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • FIG. 5 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • FIG. 6 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • a process, method, system, product, or apparatus that includes a series of steps or units is not limited to some steps or units that are clearly listed but may include other steps or units that are not explicitly listed or that are inherent to the process, method, system, product, or apparatus.
  • a conventional light-emitting diode (LED) emergency light bulb is generally bulky, inconvenient to carry, and has a single function.
  • the LED emergency light bulb consistent with the preset disclosure includes a control circuit and multiple function switches. A user can control the LED emergency light bulb to be in different working states through the multiple function switches, such that the LED emergency light bulb can have different functions.
  • the control circuit can be disposed inside the casing structure, and the multiple function switches can be disposed on the casing structure. As such, the overall volume of the LED emergency light bulb having different functions can be reduced.
  • the LED emergency light bulb consistent with the present disclosure includes a lamp head. The lamp head can be directly mounted to a lamp socket, and hence it is simple to install the LED emergency light bulb, thereby improving the market competitiveness of the LED emergency light bulb.
  • FIG. 1 is an exploded perspective view of an LED emergency light bulb 1 according to some embodiments of the present disclosure.
  • FIG. 2 is an assembled perspective view of the LED emergency light bulb 1.
  • the LED emergency light bulb 1 includes an casing structure 10 having two open ends, an LED light-emitting circuit 20 disposed at one end of the casing structure 10, a lamp cover 30 covering the LED light-emitting circuit 20, a lamp head 40 disposed at the other end of the casing structure 10, a control circuit 50 disposed inside the casing structure 10, and a function switch 60 disposed on an outer surface of a peripheral wall of the casing structure 10.
  • the LED emergency light bulb 1 includes more than one function switch 60. The function switch 60 and the control circuit 50 are connected.
  • the control circuit 50 is connected to the LED light-emitting circuit 20.
  • the function switch 60 is configured to receive an operation of a user and convert the operation into a notification signal and send the notification signal to the control circuit 50.
  • the control circuit 50 is configured to control an operating state of the LED light-emitting circuit 20 according to the notification signal.
  • the LED emergency light bulb 1 includes the lamp head 40, the casing structure 10, the lamp cover 30, the LED light-emitting circuit 20, the control circuit 50, and the function switch 60.
  • the casing structure 10 has two open ends.
  • the function switch 60 includes a switch circuit and a button.
  • a mounting hole adapted to a size and a shape of the button is disposed on the peripheral wall of the casing structure 10.
  • an assembly process of the LED emergency light bulb 1 can be as following.
  • the lamp head 40 can be fixedly mounted to one end of the casing structure 10 (e.g., a lower end of the casing structure 10 shown in FIG. 1) e.g., by screwing.
  • the lamp head 40 can be connected to an external power source, such that the external power source can provide electrical power to parts inside the LED emergency light bulb.
  • the external power source can be, for example, the electrical grid.
  • the function switch 60 can be disposed into the casing structure 10, and the button of the function switch 60 can pass through the mounting hole on the peripheral wall of the casing structure 10.
  • the switch circuit of the function switch 60 can abut against an inner surface of the peripheral wall of the casing structure 10.
  • the control circuit 50 can be disposed inside the casing structure 10, and connected to the function switch 60 and the lamp head 40.
  • the control circuit 50 can pass electrical power from the lamp head 40 to the function switch 60.
  • the LED light-emitting circuit 20 can be fixed on the other end of the casing structure 10 (e.g., an upper end of the casing structure 10 shown in FIG. 1) .
  • the LED light-emitting circuit 20 is connected to the control circuit 50, and the control circuit 50 can pass electrical power from the lamp head 40 to the LED light-emitting circuit 20, so as to drive the LED light-emitting circuit 20 to emit light.
  • a size and a shape of the LED light-emitting circuit 20 match a size and a shape of the upper end of the casing structure 10, respectively.
  • the LED light-emitting circuit 20 can cover and fit the upper end of the casing structure 10.
  • the lamp cover 30 can be fixedly connected to the upper end of the casing structure 10 and cover the LED light-emitting circuit 20.
  • the lamp cover 30 can be an optical cover configured to perform optical design for the light emitted from the LED light-emitting circuit 20.
  • a plurality of function switches 60 corresponding to different functions can be disposed on the outer surface of the peripheral wall of the casing structure 10.
  • one of the plurality of function switches 60 may be configured to adjust the light intensity of the LED emergency light bulb 1
  • another one of the function switches 60 may be configured to detect whether the LED emergency light bulb 1 can normally emit light.
  • the LED emergency light bulb 1 may have a sound control function and/or a human-body sensing function, and correspondingly, one of the function switches 60 can be configured to turn on or off the sound control function, and/or one of the function switches 60 can be configured to turn on or off the human-body sensing function. In some embodiments, one of the function switches 60 can be configured to detect whether the sound control function of the LED emergency light bulb 1 is functioning normally, and/or one of the function switches 60 can be configured to detect whether the human-body sensing function of the LED emergency light bulb 1 is functioning normally.
  • the function switch 60 configured to turn on or off the sound control function and/or the function switch 60 configured to turn on or off the human-body sensing function may only work when the LED emergency light bulb 1 is connected to the electrical grid.
  • the function switch 60 configured to detect whether the sound control function of the LED emergency light bulb 1 is functioning normally and/or the function switch 60 configured to detect whether the human-body sensing function of the LED emergency light bulb 1 is functioning normally may work no matter whether the LED emergency light bulb 1 is connected to the electrical grid.
  • the function switches 60 configured to detect whether functions of the LED emergency light bulb 1 is functioning normally can be used during a factory inspection or a later maintenance process of the LED emergency light bulb 1, facilitating the inspection and maintenance of the LED emergency light bulb 1, and thereby improving the operation reliability of the LED emergency light bulb 1.
  • the LED emergency light bulb 1 includes the control circuit 50 and the plurality of function switches 60.
  • the user can control the operating state of the LED emergency light bulb 1 through the plurality of function switches 60, such that the LED emergency light bulb 1 can have different functions.
  • the control circuit 50 is disposed inside the casing structure 10, and the multiple function switches 60 are disposed on the casing structure 10. As such, the overall volume of the LED emergency light bulb 1 having different functions can be reduced.
  • the lamp head 40 can be directly mounted to an external lamp socket, and hence it is simple to install the LED emergency light bulb 1. Therefore, the market competitiveness of the LED emergency light bulb can be improved.
  • the user when the user needs to detect whether an emergency function of the LED emergency light bulb 1 is functioning normally, the user can perform an operation (e.g., pressing) on a function switch 60 corresponding to the emergency function.
  • the function switch 60 receives the operation of the user, converts the operation of the user into a notification signal, and sends the notification signal to the control circuit 50.
  • the control circuit 50 can analyze the notification signal.
  • the notification signal is identified by the analysis to be turning on the LED emergency light bulb 1
  • the control circuit 50 can control the LED light-emitting circuit 20 to emit light. In this way, when the LED emergency light bulb 1 emits light normally, it indicates that the emergency function of the LED emergency light bulb 1 is functioning normally. Otherwise the emergency function of the LED emergency light bulb 1 is functioning abnormally. As such, it is convenient for the user to timely repair the LED emergency light bulb 1, thereby ensuring the safety of the life and property of the user.
  • the LED emergency light bulb consistent with the preset disclosure can include a casing structure having two open ends, an LED light-emitting circuit disposed at one end of the casing structure, a lamp cover covering the LED light-emitting circuit, a lamp head disposed at the other end of the casing structure, a control circuit disposed inside the casing structure.
  • the LED emergency light bulb can include one or multiple function switches.
  • the control circuit can be connected to the function switch, and the control circuit can be connected to the LED light-emitting circuit.
  • the LED emergency light bulb can include multiple function switches, such that the LED emergency light bulb can have different functions.
  • the control circuit can have a compact structure, reducing the overall volume of the LED emergency light bulb. Also, it is simple to install the LED emergency light bulb. Therefore, the market competitiveness of the LED emergency light bulb can be promoted.
  • FIG. 3 is a circuit diagram of an LED emergency light bulb according to some embodiments of the present disclosure.
  • the control circuit 50 includes a controller 510 and an electrical grid detecting circuit 520 connected to the controller 510.
  • the LED light-emitting circuit 20 is connected to the controller 510.
  • the electrical grid detecting circuit 520 can be configured to detect whether the LED emergency light bulb 1 is connected to an electrical grid 2. When it is detected that the LED emergency light bulb 1 is connected to the electrical grid 2, the electrical grid detecting circuit 520 can send a first detection signal to the controller 510. In response to receiving the first detection signal, the controller 510 can control the LED light-emitting circuit 20 to emit light.
  • the electrical grid detecting circuit 520 can send a second detection signal to the controller 510.
  • the controller 510 can control the LED light-emitting circuit 20 to stop emitting light.
  • the control circuit 50 includes the controller 510 and the electrical grid detecting circuit 520.
  • the controller 510 is connected to the electrical grid detecting circuit 520 and the LED light-emitting circuit 20.
  • AC is an external electrical power source (e.g., the electrical grid 2) .
  • a switch K1 can control the connection between the LED emergency light bulb 1 and the electrical grid 2.
  • the electrical grid detecting circuit 520 is also connected to the electrical grid 2. When the switch K1 is closed, the electrical grid detecting circuit 520 can detect that the LED emergency light bulb 1 is connected to the electrical grid 2. When the switch K1 is open, the electrical grid detecting circuit 520 can detect that the LED emergency light bulb 1 is not connected to the electrical grid 2.
  • the electrical grid detecting circuit 520 can send the first detection signal to the controller 510.
  • the controller 510 can control the LED light-emitting circuit 20 to emit light.
  • the controller 510 controls the electrical grid 2 to provide electrical power to the LED light-emitting circuit 20, so that the LED light-emitting circuit 20 can emit light.
  • the controller 510 can control a backup power supply device of the LED emergency light bulb 1 to supply electrical power to the LED light-emitting circuit 20, so that the LED light-emitting circuit 20 can emit light.
  • the electrical grid detecting circuit 520 can send the second detection signal to the controller 510.
  • the controller 510 can control the LED light-emitting circuit 20 to stop emitting light.
  • the electrical grid detecting circuit 520 of the control circuit 50 can ensure the LED emergency light bulb 1 to emit light when the LED emergency light bulb 1 is connected to the electrical grid 2 and the electrical grid 2 can provide electrical power normally.
  • the electrical grid detecting circuit 520 of the control circuit 50 can also ensure the LED emergency light bulb 1 not to emit light when the LED emergency light bulb 1 is not connected to the electrical grid 2 (e.g., when the LED emergency light bulb 1 is not in use) . In this way, it is possible to avoid wasting of electrical power and avoid misleading the user, thereby improving the operational reliability of the LED emergency light bulb 1.
  • the control circuit 50 further includes a voltage detecting circuit 530 and a battery 540, both of which are connected to the controller 510.
  • the LED light-emitting circuit 20 is connected to the battery 540.
  • the voltage detecting circuit 530 can be configured to detect whether the electrical grid 2, to which the LED emergency light bulb 1 is connected, can provide electrical power normally, for example, by detecting a voltage of the electrical grid 2. When detecting that the electrical grid 2, to which the LED emergency light bulb 1 is connected, can provide electrical power normally, the voltage detecting circuit 530 can send a third detection signal to the controller 510.
  • the controller 510 can control the electrical grid 2 to provide electrical power to the LED light-emitting circuit 20, so that the LED light-emitting circuit 20 can emit light.
  • the voltage detecting circuit 530 can send a fourth detection signal to the controller 510.
  • the controller 510 can, according to the first detection signal and the fourth detection signal, control the battery 540 to provide electrical power to the LED light-emitting circuit 20, so that the LED light-emitting circuit 20 can emit light.
  • the voltage detecting circuit 530 can detect whether the electrical grid 2 can provide electrical power normally. When detecting that the electrical grid 2 can provide electrical power normally, the voltage detecting circuit 530 can send the third detection signal to the controller 510. In response to receiving the third detection signal, the controller 510 can control the electrical grid 2 to provide electrical power to the LED light-emitting circuit 20, so that the LED emergency light bulb 1 can emit light. When detecting that the electrical grid 2 cannot provide electrical power normally (e.g., out of electricity) , the voltage detecting circuit 530 can send the fourth detection signal to the controller 510.
  • the controller 510 can, according to the detection signal sent from the electrical grid detecting circuit 520 and the fourth detection signal, determine whether to control the battery 540 to provide electrical power to the LED light-emitting circuit 20. In some embodiments, in response to receiving the fourth detection signal sent by the voltage detecting circuit 530 and the first detection signal sent by the electrical grid detecting circuit 520, the controller 510 can determine that the LED emergency light bulb 1 is connected to the electrical grid 2 but the electrical grid 2 is out of electricity. In this case, the controller 2 can control the battery 540 to provide electrical power to the LED light-emitting circuit 20, so that the LED emergency light bulb 1 can emit light.
  • the LED emergency light bulb 1 consistent with embodiments of the present disclosure includes the voltage detecting circuit 530 in the control circuit 50.
  • the LED emergency light bulb 1 can be provided with electrical power from the electrical grid 2.
  • the LED emergency light bulb 1 can be provided with electrical power from the battery 540. As such, the operational reliability of the LED emergency light bulb 1 can be ensured, and the LED emergency light bulb 1 can better assist the user in emergency situations.
  • the user can periodically replace the battery 540 to ensure the power of the battery 540.
  • the battery 540 can be charged by the electrical grid 2.
  • the controller 510 when receiving the third detection signal indicating that the electrical grid 2 can provide electrical power to the LED emergency light bulb 1 normally, the controller 510 can control the electrical grid 2 to charge the battery 540.
  • the battery 540 when the electrical grid 2 is out of electricity, the battery 540 can provide electrical power to the LED emergency light bulb 2, so as to ensure a normal operation of the LED emergency light bulb 1.
  • the control circuit 50 further includes a first voltage-current conversion circuit 550, a second voltage-current conversion circuit 560, and a third voltage-current conversion circuit 570.
  • the electrical grid 2 is connected to the LED light-emitting circuit 20 through the first voltage-current conversion circuit 550.
  • the electrical grid 2 is connected to the battery 540 through the second voltage-current conversion circuit 560.
  • the battery 540 is connected to the LED light-emitting circuit 20 through the third voltage-current conversion circuit 570.
  • the control circuit 50 further includes a rectifier circuit, a transformer T1, and a first diode D1.
  • the rectifier circuit can convert the AC electrical power of the electrical grid 2 to a DC electrical power, which can be a high voltage DC electrical power.
  • the first voltage-current conversion circuit 550 can convert the high voltage DC electrical power to a low voltage DC electrical power through the transformer T1 and the first diode D1, and provide the low voltage DC electrical power to the LED light-emitting circuit 20.
  • the second voltage-current conversion circuit 560 can convert the high voltage DC electrical power output by the rectifier circuit to a low voltage DC electrical power and provide the low voltage DC electrical power to the battery 540, so as to charge the battery 540.
  • the controller 510 can control the battery 540 to provide electrical power to the LED emergency light bulb 1.
  • the third voltage-current conversion circuit 570 can convert the electrical power output by the battery 540 to a low voltage DC electrical power, and provide the low voltage DC electrical power to the LED light-emitting circuit 20, such that the LED emergency light bulb 1 can emit light when the electrical grid 2 is out of electricity.
  • the control circuit can include the electrical grid detecting circuit, which can be configured to detect whether the LED emergency light bulb is connected to the electrical grid. When it is detected that the LED emergency light bulb is connected to the electrical grid, the electrical grid detecting circuit can notify the controller to control the LED emergency light bulb to emit light. When it is detected that the LED emergency light bulb is not connected to the electrical grid, the electrical grid detecting circuit can notify the controller to control the LED emergency light bulb to stop emitting light. As such, the LED emergency light bulb can emit light during normal operation. Further, the control circuit can also include a voltage detecting circuit, which can be configured to detect whether the electrical grid can provide electrical power normally.
  • the voltage detecting circuit can notify the controller to control the LED emergency light bulb to use the electrical power provided by the electrical grid.
  • the controller can control the LED emergency light bulb to use the electrical power provided by the battery.
  • FIG. 4 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • the function switch 60 includes a first function switch 610.
  • the first function switch 610 includes a test button 611 and an emergency-function test circuit 612.
  • the test button 611 is connected between the emergency-function test circuit 612 and the controller 510.
  • the emergency-function test circuit 612 can be configured to send a first notification signal to the controller 510 when the test button 611 is closed.
  • the control 510 can be configured to control the LED light-emitting circuit 20 to operate in an emergency working state in response to receiving the first notification signal.
  • the function switch 60 includes the first function switch 610, which can be configured to detect the emergency function of the LED emergency light bulb 1.
  • the first function switch 610 includes the test button 611 and the emergency-function test circuit 612.
  • the emergency-function test circuit 612 is connected to the controller 510 through the test button 611.
  • the controller 510 can receive a voltage signal A, and the controller 510 can be in a detecting state.
  • the test button 611 is placed at a terminal b
  • the emergency-function test circuit 612 is connected to controller 510, and the controller 510 can receive the first notification signal sent by the emergency-function test circuit 612.
  • the controller 510 can turn on the LED emergency light bulb 1 based on the first notification signal.
  • the controller 510 can send a signal, e.g., a pulse width modulation (PWM) signal, to the third voltage-current conversion circuit 570, so that the third voltage-current conversion circuit 570 can provide the electrical power output by the battery 540 to the LED light-emitting circuit 20.
  • PWM pulse width modulation
  • the controller 510 can send a signal, e.g., a pulse width modulation (PWM) signal, to the third voltage-current conversion circuit 570, so that the third voltage-current conversion circuit 570 can provide the electrical power output by the battery 540 to the LED light-emitting circuit 20.
  • PWM pulse width modulation
  • the LED emergency light bulb 1 when the first function switch 610 is connected to the emergency-function test circuit 612, the LED emergency light bulb 1 can simulate a condition that the LED emergency light bulb is connected to the electrical grid 2 and the electrical grid 2 is out of electricity, so that it can be tested whether the emergency function of the LED emergency light bulb 1 is normal. In addition, the LED emergency light bulb 1 can also be used as a flashlight.
  • FIG. 5 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • the LED emergency light bulb shown in FIG. 5 is similar to the LED emergency light bulb shown in FIG. 4, except that, e.g., the function switch 60 further includes a second function switch 620.
  • the second function switch 620 includes an auxiliary button 621 and an auxiliary circuit 622.
  • the auxiliary button 621 is connected between the auxiliary circuit 622 and the controller 510.
  • the auxiliary circuit 622 can be configured to send a second notification signal to the controller 510 when the auxiliary button 621 is closed.
  • the controller 510 can control the LED light-emitting circuit 20 to emit light in an auxiliary working state according to the second notification signal.
  • the LED emergency light bulb 1 can have one or more auxiliary functions.
  • one or more second function switches 620 corresponding to the one or more auxiliary functions are disposed on the outer surface of the peripheral wall of the casing structure 10.
  • the LED emergency light bulb 1 of the present embodiment can have a human-body sensing function.
  • a second function switch 620 having a function of controlling tuning on and turning off the human-body sensing function can be disposed on the outer surface of the peripheral wall of the casing structure 10. The user can choose to turn on or turn off the auxiliary function by pressing the auxiliary button 621.
  • the auxiliary circuit 622 When the auxiliary button 621 is closed, the auxiliary circuit 622 is connected to the controller 510, and the auxiliary circuit 622 can send the second notification signal to the controller 510. In response to receiving the second notification signal, the controller 510 can control to turn on a human-body sensor of the LED emergency light bulb 1.
  • the human-body sensor can be configured to sense a motion of a human body (or an object) in a certain region.
  • the second function switch 620 can be configured to adjust a brightness of the LED emergency light bulb 1.
  • FIG. 6 is a circuit diagram of an LED emergency light bulb according to some other embodiments of the present disclosure.
  • the auxiliary circuit 622 of the second function switch 620 is a brightness adjustment circuit 623
  • the auxiliary button 621 is a brightness adjustment button.
  • the brightness adjustment button includes a first gear position 624 and a second gear position 625.
  • the brightness adjustment button is connected between the brightness adjustment circuit 623 and the controller 510.
  • the controller can send a signal, e.g., a PWM signal, to the third voltage-current conversion circuit 570.
  • the third voltage-current conversion circuit 570 can adjust the current provided to the LED light-emitting circuit 20, so that the LED emergency light bulb 1 can emit light with a first brightness in the emergency condition.
  • the brightness adjustment circuit 623 When the brightness adjustment circuit 623 is connected to the second gear position 625, the brightness adjustment circuit 623 can send a second brightness adjustment signal to the controller 510. Then, the controller can send another signal, e.g., another PWM signal, to the third voltage-current conversion circuit 570.
  • the third voltage-current conversion circuit 570 can adjust the current provided to the LED light-emitting circuit 20, so that the LED emergency light bulb 1 can emit light with a second brightness in the emergency condition.
  • the LED emergency light bulb can include the first function switch, which can be configured to test the emergency function of the LED emergency light bulb, enabling the user to simulate the condition in which the LED emergency light bulb is connected to the electrical grid and the electrical grid is out of electricity by pressing the first function switch. As such, it is possible to test whether the emergency function of the LED emergency light bulb is normal.
  • the LED emergency light bulb can further include the second function switch, which can be configured to control the LED emergency light bulb to work in the auxiliary working state, thereby enriching the functions of the LED emergency light bulb.
PCT/CN2018/108555 2017-10-09 2018-09-29 LED EMERGENCY LIGHTING BULB WO2019072114A1 (en)

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CN201710930631.7A CN107606498A (zh) 2017-10-09 2017-10-09 Led应急灯泡

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US11326766B2 (en) * 2020-01-22 2022-05-10 Zhejiang Yankon Mega Lighting Co., Ltd. LED light with shift switch

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