Emergency power supply capable of turning off inductor in emergency lighting mode

Abstract

When commercial power is cut off, the emergency power supply is used for transmitting current to an LED driver, the LED driver is connected to the commercial power, the LED driver receives the commercial power input, converts the commercial power into direct current and outputs the direct current to an LED lamp, when the commercial power is normal, the emergency power supply supplies power to the inductor, and when the commercial power is cut off, the LED lamp outputs the direct current to the LED lamp. The emergency power supply stops supplying power to the inductor; compared with the prior art, when the emergency power supply cannot supply energy to the inductor in the emergency lighting mode, the inductor stops working, and the safety of a user in an emergency situation is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of emergency lighting, specifically to emergency power supply that can close inductive sensor under emergency lighting mode. BACKGROUND

[0002] The LED lighting lamp on the market generally is equipped with inductive sensor to control the switch of light, for example, sound control inductive sensor, human body inductive sensor etc.;In prior art, general power supply is used to drive inductive sensor to work, and in the state of cutting off commercial power, emergency power supply supplies energy for general power supply, and general power supply also normally supplies energy for inductive sensor, which will result in that inductive sensor can still control the switch of light under emergency lighting condition, which will inevitably cause safety hazard, therefore, it is needed to provide emergency power supply that can close inductive sensor under emergency lighting mode to solve the above problems. SUMMARY

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides emergency power supply that can close inductive sensor under emergency lighting mode.

[0004] To achieve the above-mentioned purpose, the emergency power supply that can close inductive sensor under emergency lighting mode is used to transmit current to LED drive when commercial power is cut off, the LED drive is connected to commercial power, and the LED drive converts commercial power into direct current and then outputs to LED lamp after receiving commercial power input;When commercial power is cut off, the LED drive drives LED lamp to work after receiving emergency power supply input;The inductive sensor is connected to the LED drive, the emergency power supply supplies power to the inductive sensor when commercial power is normal, and the emergency power supply stops supplying power to the inductive sensor when commercial power is cut off.

[0005] Preferably, the emergency power supply comprises rectifier filter unit and battery unit in sequence, commercial power is connected to the battery unit through the rectifier filter unit: when commercial power is normal, input current is charged to the battery unit after passing through the rectifier filter unit;When commercial power is cut off, the battery unit supplies power to the LED drive.

[0006] Preferably, the emergency power supply further comprises master control unit, the master control unit is connected to the rectifier filter unit, the battery unit, the boost unit and the inductive sensor respectively, the master control unit controls the rectifier filter unit to work and transmit current to the inductive sensor when commercial power is normal, and the master control unit controls the battery unit to supply power to the LED drive when commercial power is cut off.

[0007] Preferably, the emergency power supply further comprises boost unit, and the battery unit supplies power to the LED drive through the boost unit.

[0008] Preferably, the emergency power supply further comprises an auxiliary source, the auxiliary source being connected between the main control unit and the inductor, and the auxiliary source being further connected with an expansion interface for connecting external devices.

[0009] Preferably, the auxiliary source comprises a voltage conversion module, the voltage conversion module being connected to the output end of the voltage boosting unit, and the voltage conversion module being used for converting the voltage input by the voltage boosting unit into a 12V voltage.

[0010] The emergency power supply provided by the utility model can close the inductor in the emergency lighting mode, when the commercial power is disconnected, the emergency power supply is used for transmitting current to the LED drive, the LED drive is connected to the commercial power, and the LED drive outputs the commercial power converted into direct current to the LED lamp after receiving the commercial power input; when the commercial power is disconnected, the LED drive drives the LED lamp to work after receiving the emergency power supply input; the inductor is connected to the LED drive, the emergency power supply supplies power to the inductor when the commercial power is normal, the emergency power supply stops supplying power to the inductor when the commercial power is disconnected, the inductor cannot control the light in the emergency lighting mode is realized, and the safety of users is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model is a block diagram.

[0012] Figure 2 The utility model is an auxiliary source circuit diagram.

[0013] Figure 3 The utility model is a voltage conversion module circuit diagram.

[0014] The main element symbol is explained as follows:

[0015] 1, emergency power supply;11, rectifier filter unit;12, battery unit;13, voltage boosting unit;14, main control chip;15, auxiliary source;16, expansion interface;2, LED drive;3, LED lamp;4, inductor. DETAILED DESCRIPTION

[0016] In order to more clearly express the utility model, the utility model is further described below in combination with the drawings.

[0017] As described in the background, the existing emergency power supply still supplies power to the inductor when the commercial power is disconnected, and the inductor still can control the switch of the light in the emergency lighting condition, which necessarily produces a safety hazard.

[0018] Based on this, please refer to Figure 1The utility model provides a kind of emergency power supply that can be closed in emergency lighting mode inductor, when commercial power is disconnected, emergency power supply 1 is used for transmitting current for LED drive 2, LED drive 2 is connected to commercial power, after receiving commercial power input, LED drive 2 converts commercial power into direct current and then outputs to LED lamp 3;When commercial power is disconnected, LED drive 2 drives LED lamp 3 to work after receiving the current input by emergency power supply 1;Inductor 4 is connected with LED drive 2;When commercial power is normal, emergency power supply 1 supplies power for inductor 4, when commercial power is disconnected, emergency power supply 1 stops supplying power for inductor 4, through the above setting, when commercial power is disconnected, emergency power supply cannot supply energy for inductor, that is, inductor is automatically closed when commercial power is disconnected.

[0019] In the embodiment, the user can install different inductors according to actual needs, and the inductor can be a human body inductor, an infrared inductor, a sound inductor, etc.; for example, the emergency lighting integrated emergency power supply is applied to a corridor, and a human body sensing device or a sound control device can be additionally installed.

[0020] In the embodiment, emergency power supply 1 sequentially includes a rectifier filter unit 11 and a battery unit 12, and commercial power is connected to the battery unit 12 through the rectifier filter unit 11; when commercial power is normal, the input current is charged to the battery unit 12 after passing through the rectifier filter unit 11; when commercial power is disconnected, the battery unit 12 supplies power for LED drive 2.

[0021] In the preferred scheme, emergency power supply 1 further includes a boost unit 13, and the battery unit 12 outputs the voltage required by LED drive 2 through the boost unit 13, so that LED drive 2 can normally work.

[0022] In the embodiment, emergency power supply 1 further includes a main control unit 14, and the main control unit 14 is connected with the rectifier filter unit 11, the battery unit 12, the boost unit 13 and the inductor 4, respectively; when commercial power is normal, the main control unit 14 controls the rectifier filter unit 11 to work and transmit current to the inductor 4; when commercial power is disconnected, the main control unit 14 controls the battery unit 12 to supply power for LED drive 2, and through the above setting, when commercial power is disconnected, emergency power supply cannot supply energy for inductor, that is, inductor is automatically closed when commercial power is disconnected.

[0023] In the embodiment, please refer to Figure 1 and Figure 2, the emergency power supply 1 further comprises an auxiliary source 15 connected between the main control unit 14 and the inductor 4, and the auxiliary source 15 is further connected with an expansion interface 16 for connecting external devices, and the input port CON5 of the auxiliary source 15 is connected with the output of the rectifier filter unit 11 and the output of the voltage boosting unit 13 respectively, and the input port CON5 receives the power input by the rectifier filter unit 11 when the commercial power is normal; and the input port CON5 receives the power input by the voltage boosting unit when the commercial power is disconnected; at this time, the input port CON5 can ensure the normal work of the devices connected with the expansion interface, for example, when the devices connected with the expansion interface are dimming devices, the dimming devices can continue to work to control the LED lamp to work at low power to prolong the working time in the emergency state after the commercial power is disconnected.

[0024] Please refer to Figure 3 In the preferred scheme, the auxiliary source comprises a voltage conversion module connected with the output of the voltage boosting unit. The voltage conversion module is used to convert the voltage input by the voltage boosting unit 13 into 12V voltage to supply power to the input port, and the input port supplies power to the inductor to prevent the external devices from being burnt by the excessively high voltage.

[0025] In another embodiment, the auxiliary source can not only supply power to the inductor, but also supply power to the emergency power supply to output voltage and current to the ordinary power supply of the user to light the lamps for emergency lighting.

[0026] In a further embodiment, the auxiliary source accepts the 12V voltage input by the external power supply device through the expansion interface 18, and the voltage conversion module can convert the 12V voltage input by the external device into other voltage to output to other external devices or the voltage boosting unit, so that the emergency power supply can work normally when the battery unit fails, and the function of supplying power to multiple external devices with different working voltages is realized, and the diversification of voltage output is realized.

[0027] The advantage of the utility model lies in:

[0028] 1. The LED drive receives the commercial power input to supply power to the inductor, and the inductor stops working when the commercial power is disconnected; the technical problem that the inductor still works in the emergency lighting mode is solved.

[0029] 2. The input port of the auxiliary source is connected with the output of the rectifier filter unit and the output of the voltage boosting unit; at this time, the input port can ensure the normal work of the external control module whether the commercial power is normal or not.

[0030] The above disclosure is only several specific embodiments of the utility model, but the utility model is not limited to this, and any change that can be thought of by any person skilled in the art should fall into the protection scope of the utility model.

Claims

1. An emergency power supply capable of shutting off sensors in emergency lighting mode, wherein when the mains power is disconnected, the emergency power supply is used to transmit current to the LED driver, characterized in that, The LED driver is connected to the mains power supply. After receiving the mains power input, the LED driver converts the mains power into DC and outputs it to the LED light. When the mains power is disconnected, the LED driver receives the emergency power input and drives the LED light to work. The sensor is connected to the LED driver. When the mains power is normal, the emergency power supply supplies power to the sensor. When the mains power is disconnected, the emergency power supply stops supplying power to the sensor.

2. An emergency power supply that can shut off the sensor in emergency lighting mode according to claim 1, characterized in that, The emergency power supply includes a rectifier and filter unit and a battery unit in sequence. The mains power is connected to the battery unit through the rectifier and filter unit. When the mains power is normal, the input current charges the battery unit after passing through the rectifier and filter unit. When the mains power is disconnected, the battery unit powers the LED driver.

3. An emergency power supply that can shut off the sensor in emergency lighting mode according to claim 2, characterized in that, The emergency power supply also includes a main control unit and a boost unit. The battery unit supplies power to the LED driver through the boost unit. The main control unit is connected to the rectifier and filter unit, the battery unit, the boost unit, and the sensor. When the mains power is normal, the main control unit controls the rectifier and filter unit to work and transmit current to the sensor. When the mains power is disconnected, the main control unit controls the battery unit to supply power to the LED driver.

4. An emergency power supply that can shut off the sensor in emergency lighting mode according to claim 3, characterized in that, The emergency power supply also includes an auxiliary power source, which is connected between the main control unit and the sensor. The auxiliary power source is also connected to an expansion interface for connecting external devices.

5. An emergency power supply that can shut off the sensor in emergency lighting mode according to claim 4, characterized in that, The auxiliary source includes a voltage conversion module, which is connected to the output terminal of the boost unit and is used to convert the voltage input to the boost unit into a 12V voltage.

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