Ultra-wide emergency voltage adaptive centralized battery power supply emergency lighting controller

Abstract

The utility model provides an ultra-wide emergency voltage adaptive centralized battery power supply emergency lighting controller, which relates to the field of electrical control and comprises an EMC (Electro Magnetic Compatibility) filtering and rectifying circuit, a valley filling circuit, a mains supply detection circuit, a Flyback circuit, an output rectifying and filtering circuit and an emergency switching and DALI (Digital Addressable Lighting Interface) switching circuit. When the commercial power is normal, an input AC voltage is converted into a DC voltage through filtering and rectification, then the DC voltage is converted into a low voltage through the flyback circuit to be output, a constant voltage is output through output rectification and filtering, and stable power supply is provided for the emergency switching and DALI switching circuit to carry out a switching action; when the mains supply is abnormal, the flyback circuit stops working, the emergency switching and DALI switching circuit performs switching action, the power supply is provided by the emergency power supply at the moment, the dimming port is driven to be disconnected, the default maximum brightness is recovered, and dimming cannot be performed. The controller can automatically switch the power supply mode when the commercial power is normal and abnormal, and ensures the reliability of emergency lighting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrical control, concretely relates to a super wide emergency voltage adaptation centralized battery power emergency lighting controller. BACKGROUND

[0002] With the popularization of LED lighting technology and the expansion of building scale, the market demand for integrated battery power emergency lighting systems is increasing, and centralized battery power emergency lighting controllers are needed to start emergency lighting when local power distribution fails, not just when the entire building power fails, which is a standard mandatory requirement.

[0003] Traditional emergency lighting systems usually only start when the entire building power fails, and cannot meet the demand for starting emergency lighting when local power fails, and most systems do not support dimming control. In addition, the voltage standards of integrated battery power emergency systems on the market are diversified (such as 50VAC / DC, 110VAC / DC, 230VAC / DC, etc.), making emergency lighting controllers face challenges in voltage adaptation. Therefore, it is of great significance to design a centralized battery power emergency lighting controller that adapts to super wide emergency voltage and supports dimming function. SUMMARY

[0004] Therefore, the utility model provides a kind of super wide emergency voltage adaptation centralized battery power emergency lighting controller that can adapt to super wide emergency voltage and support the switching of dimming function, the controller can automatically switch power supply mode under normal and abnormal state of commercial power, ensure the reliability of emergency lighting, and support the switching of dimming control to adapt to the demand of various integrated battery power emergency systems and dimming LED lamps on the market.

[0005] The utility model adopts the following technical solutions:

[0006] In the first aspect, the utility model provides a kind of super wide emergency voltage adaptation centralized battery power emergency lighting controller, and the controller includes EMC filter rectifier circuit, fill valley circuit, commercial power detection circuit, Flyback circuit, output rectifier filter circuit and emergency switching and DALI switching circuit:

[0007] The EMC filter rectifier circuit is connected with an input port of an alternating voltage at one end and connected with a valley fill circuit at the other end; the valley fill circuit is connected with a mains detection circuit for detecting the state of the mains voltage and judging whether the mains is normal; the valley fill circuit is further connected with a Flyback circuit for converting the input alternating voltage into a stable low-voltage direct-current output; the Flyback circuit is connected with an emergency switching and DALI switching circuit through an output rectifier filter circuit; the emergency switching and DALI switching circuit realizes automatic switching between the mains and the emergency power supply through a relay and is provided with a dimming interface input for controlling the switching of a dimming function.

[0008] The EMC filter rectifier circuit is connected with an input port of an alternating voltage at one end and connected with a valley fill circuit at the other end; the valley fill circuit is connected with a mains detection circuit for detecting the state of the mains voltage and judging whether the mains is normal; the valley fill circuit is further connected with a Flyback circuit for converting the input alternating voltage into a stable low-voltage direct-current output; the Flyback circuit is connected with an emergency switching and DALI switching circuit through an output rectifier filter circuit; the emergency switching and DALI switching circuit realizes automatic switching between the mains and the emergency power supply through a relay and is provided with a dimming interface input for controlling the switching of a dimming function.

[0009] As a further scheme of the utility model, the input voltage range of the emergency lighting controller is 50VAC / DC to 230VAC / DC, for providing stable direct-current power supply and supporting dimming function under the normal state of the mains, and switching to the emergency power supply under the abnormal state of the mains and adjusting the lamps to the maximum brightness to provide emergency lighting.

[0010] As a further scheme of the utility model, the EMC filter rectifier circuit comprises a fuse (FU1), a surge protection design component (RV1), a first-stage filter and rectifier component (C1, L1, DB1) and a differential mode capacitor (C8), for converting the input alternating voltage into direct-current voltage and reducing electromagnetic interference, and the surge protection design component (RV1) in the EMC filter rectifier circuit can pass the lightning protection test of differential mode 1KV and common mode 2KV.

[0011] As a further scheme of the utility model, the valley fill circuit comprises electrolytic capacitors (C4, C9) and diodes (D2, D3, D10), for optimizing current harmonics through the charging and discharging of the capacitors and reducing the interference of the product on the external power grid.

[0012] As a further scheme of the utility model, the mains detection circuit includes voltage dividing resistor (R16, R19, R22) and capacitor (C10), and triode (Q3), is used for detecting whether mains is normal, and switches to emergency mode or normal mode based on detection result;The triode (Q3) in the mains detection circuit is turned on when mains is abnormal, to pull down LNK623 PIN2 voltage and switch to emergency mode, and is turned off when mains is normal, to switch to normal mode.

[0013] As a further scheme of the utility model, the Flyback circuit includes spike absorption assembly (D108, R18, C5, R15), detection auxiliary winding voltage assembly (TR1B, R20, R23), and control chip (U1) with built-in MOS switch, for realizing output voltage stabilization;The control chip (U1) in the Flyback circuit is built-in MOS switch, and realizes stable supply of output voltage through auxiliary winding voltage detection.

[0014] As a further scheme of the utility model, the output rectification filter circuit includes energy storage element (TR1C, R14, C6, D1, R17, C7, C13), for rectification and filtering of output voltage, and improves EMC through absorption transient spike.

[0015] As a further scheme of the utility model, the emergency switching and DALI switching circuit: including relay (K1, K2, K3), operational amplifier (U2, U3) and its surrounding components, constitutes multiple comparator circuits, for time sequence switching drive relay, realizes switching of emergency power supply and dimming interface;The devices around the operational amplifier (U2, U3) in the emergency switching and DALI switching circuit constitute multiple comparator circuits, for controlling switching of relay (K1, K2, K3), and ensure emergency power supply and dimming switching under normal and abnormal mains.

[0016] As a further scheme of the utility model, when mains is normal, Control_K1 outputs high potential, Q2 is turned on, K1 relay switches off emergency power supply, subsequently Control_K2 / K3 outputs high potential, Q1 is turned on, K2 relay switches on mains power supply, finally K3 relay switches on dimming interface;When mains is abnormal, Control_K2 / K3 outputs low potential, Q1 is not turned on, K2 relay switches off mains power supply, subsequently K3 relay switches off dimming interface, finally Control_K1 outputs low potential, Q2 is not turned on, K1 relay switches on emergency power supply.

[0017] Compared with prior art, the utility model provides a kind of super-wide emergency voltage adaptation centralized battery-powered emergency lighting controller, with following beneficial effects:

[0018] 1. With security isolation and high performance: the utility model discloses Flyback scheme realizes security isolation, has low cost, small size, high power factor and low harmonic, and excellent EMC performance.

[0019] 2. With surge and lightning protection effect: input end uses pressure-sensitive resistor and other devices, has good surge, lightning effect, and adapts to various severe electrical environment.

[0020] 3. Realize the super-wide emergency voltage adaptation: can adapt super-wide emergency power supply, match various integrated battery power supply emergency system on the market.

[0021] 4. With dimming function support: support the switching of dimming function, compatible 0-10V dimming, DALI dimming and other functions.

[0022] 5. Realize the multi-drive compatibility: a single controller can be matched with multiple drives, greatly reducing the number of area controllers and improving system efficiency

[0023] In summary, the super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller of the utility model has wide application prospect in the market, through optimizing circuit design and improving compatibility, meet the high requirements of modern building on emergency lighting system.

[0024] The aspects or other aspects of the utility model will be more clear and easy to understand in the following embodiment description. It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or related technology, the following will be a brief introduction to the drawings needed to be used in the exemplary embodiment or related technology description, the drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and be used to explain the utility model together with the embodiment of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0026] Figure 1 It is the circuit overall framework schematic diagram of the super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller of the embodiment of the utility model;

[0027] Figure 2 It is the circuit connection schematic diagram in the super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller of the embodiment of the utility model;

[0028] Figure 3 It is the emergency switching and DALI switching circuit schematic diagram of the super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller of the embodiment of the utility model. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model clearer and more understandable, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0030] In some processes described in the specification and claims of the utility model and the above-mentioned drawings, a plurality of operations appearing in a specific order are included, but it should be clearly understood that these operations can be executed or performed in parallel without following the order in which they appear in this text. The serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. In addition, these processes can include more or fewer operations, and these operations can be executed in sequence or in parallel. It should be noted that the descriptions of "first", "second", etc. in this text are used to distinguish different messages, devices, modules, etc. and do not represent the order of precedence. "First" and "second" are not of different types.

[0031] The technical solutions in the exemplary embodiments of the utility model will be described clearly and completely below in combination with the drawings in the exemplary embodiments of the utility model. Obviously, the described exemplary embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Since the emergency voltages of integrated battery-powered emergency systems on the market are different (such as 50VAC / DC, 110VAC / DC, 230VAC / DC, etc.), a controller supporting an ultra-wide emergency voltage range is needed. The utility model proposes an ultra-wide emergency voltage adaptation centralized battery-powered emergency lighting controller that can adapt to an ultra-wide emergency voltage and support dimming function switching, aiming at the voltage adaptation needs of emergency lighting controllers. The controller can automatically switch the power supply mode under normal and abnormal conditions of commercial power to ensure the reliability of emergency lighting and support the switching of dimming control to meet the needs of various integrated battery-powered emergency systems and dimmable LED lamps on the market.

[0033] The technical solutions of the utility model will be further described below in combination with specific examples:

[0034] Referring to Figure 1 As shown in the drawings, Figure 1The utility model provides a kind of super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller's circuit overall framework schematic diagram provided by the utility model.The utility model provides a kind of super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller in an embodiment of the utility model, EMC filter rectifier circuit, valley fill circuit, mains detection circuit, Flyback circuit, output rectifier filter circuit and emergency switching and DALI switching circuit.The input port of one end of the EMC filter rectifier circuit is connected with alternating voltage, and the other end is connected with valley fill circuit;Valley fill circuit is connected with the mains detection circuit for detecting the state of mains voltage, to judge whether mains is normal;Valley fill circuit is further connected with Flyback circuit for converting input alternating voltage into stable low-voltage DC output, and Flyback circuit is connected with emergency switching and DALI switching circuit through output rectifier filter circuit, and emergency switching and DALI switching circuit is switched between mains and emergency power source automatically through relay, and is equipped with the light-adjusting interface input of control light-adjusting function switching.

[0035] In the embodiment, one end of the EMC filter rectifier circuit is connected with the input port of alternating voltage, and the other end is connected with valley fill circuit, for filtering and rectifying input alternating voltage, to reduce electromagnetic interference and provide stable DC voltage, and transmit to valley fill circuit;Valley fill circuit optimizes flow waveform through the charge and discharge process of electric capacitor, reduces harmonic interference to power grid;The mains detection circuit is used for detecting the state of mains voltage, to judge whether mains is normal;Flyback circuit is used for converting input alternating voltage into stable low-voltage DC output, to adapt to different voltage ranges;The output rectifier filter circuit is used for rectifying and filtering DC voltage output by Flyback circuit, to provide stable DC output voltage;Emergency switching and DALI switching circuit realize automatic switching between mains and emergency power source through relay, and control the switching of light-adjusting function.

[0036] The super-wide emergency voltage adaptation centralized battery power supply emergency lighting controller has two working modes: 1) normal mode (when mains is normal), in this mode, after mains detection circuit detects that mains is normal, input alternating voltage is converted into DC voltage after filtering and rectification, then converted into low-voltage output through flyback circuit, and then constant voltage is output through output rectifier filter, to provide stable power supply for emergency switching and DALI switching circuit to perform switching action.This time, power supply is provided by mains, light-adjusting interface is normally connected with driver, and driver can be dimmed;2) abnormal mode (when mains is abnormal), in this mode, after mains detection circuit detects that mains is abnormal, flyback circuit stops working, and emergency switching and DALI switching circuit perform switching action, this time, power supply is provided by emergency power supply, driver is disconnected with light-adjusting port, driver restores default maximum brightness, and cannot be dimmed.

[0037] In the embodiment, the EMC filter rectifier circuit as shown in Figure 2 converts the input AC voltage into DC voltage and filters to reduce electromagnetic interference. The EMC filter rectifier circuit includes a fuse, a surge protection design component, a first-stage filter and rectifier component, and a differential mode capacitor; the fuse is FU1, the surge protection design component is RV1, which can pass the lightning strike test of differential mode 1KV and common mode 2KV; the first-stage filter and rectifier component is composed of C1, L1, and DB1; and the differential mode capacitor is C8.

[0038] The EMC filter rectifier circuit includes a fuse (FU1), a surge protection design component (RV1), a first-stage filter and rectifier component (C1, L1, and DB1), and a differential mode capacitor (C8), which is used to convert the input AC voltage into DC voltage and reduce electromagnetic interference. The surge protection design component (RV1) in the EMC filter rectifier circuit can pass the lightning strike test of differential mode 1KV and common mode 2KV.

[0039] In the embodiment, the valley fill circuit as shown in Figure 2 includes electrolytic capacitors (C4 and C9) and diodes (D2, D3, and D10), which optimize current harmonics through charging and discharging of the capacitors and reduce the interference of the product on the external power grid. The electrolytic capacitors in the valley fill circuit include C4 and C9; the diodes include D2, D3, and D10, which optimize current harmonics through charging and discharging of the capacitors. The valley fill circuit is used to optimize current harmonics and reduce the interference of the product on the external power grid, and improve product harmonics through charging and discharging of the capacitors.

[0040] In the embodiment, the mains detection circuit as shown in Figure 2 is used to detect whether the mains is normal and determine whether to perform emergency switching. The mains detection circuit includes voltage dividing resistors, a capacitor, and a triode, the voltage dividing resistors include R16, R19, and R22; the capacitor is C10; and the triode is Q3. R16, R19, R22, and C10 divide the mains voltage, and Q3 is a triode. When the mains is abnormal, the triode Q3 in the mains detection circuit is turned on, the mains voltage is reduced, Q3 is turned on to lower the LNK623 PIN2 voltage, and the system switches to emergency mode; when the mains is normal, the mains voltage is increased, Q3 is turned off, and the system switches to normal mode.

[0041] In the embodiment, the Flyback circuit includes a spike absorption component (D108, R18, C5, and R15), a detection auxiliary winding voltage component (TR1B, R20, and R23), and a control chip (U1) with a built-in MOS switch, which is used to stabilize the output voltage. The control chip (U1) in the Flyback circuit has a built-in MOS switch, and the output voltage is stably supplied through auxiliary winding voltage detection.

[0042] Flyback circuit as shown in Figure 2 The Flyback circuit includes a spike absorption component, a detection auxiliary winding voltage component and a control chip; the spike absorption component is composed of D108, R18, C5 and R15, absorbs the TR1 leakage inductance spike, and improves EMC; the detection auxiliary winding voltage component is composed of TR1B, R20 and R23, the control chip is a control chip U1 with a built-in MOS switch, TR1B, D10, C11, R21 and C12 provide power supply for U1, and the control chip U1 in the Flyback circuit is built-in MOS switch, and output voltage stabilization is realized.

[0043] In the embodiment, the output rectification and filtering circuit includes an energy storage element composed of TR1C, R14, C6, D1, R17, C7 and C13, is used for rectification and filtering of output voltage, and improves EMC by absorbing transient spikes; when the control chip U1 built-in MOS switch is turned on, TR1A flows through current, stores energy, and C7 and C13 provide output voltage for the output; when the control chip U1 built-in MOS switch is not turned on, TR1C releases the stored energy, charges C7 and C13 and provides output voltage for the output; R14 and C6 absorb D1 transient spikes and improve EMC.

[0044] In the embodiment, the emergency switching and DALI switching circuit includes relays (K1, K2 and K3), operational amplifiers (U2 and U3) and peripheral components thereof, constitutes a plurality of comparator circuits, is used for time sequence switching driving relays, and realizes switching of emergency power supply and dimming interface; the devices around the operational amplifiers (U2 and U3) in the emergency switching and DALI switching circuit constitute a plurality of comparator circuits, are used for controlling switching of the relays (K1, K2 and K3), and ensure emergency power supply and dimming switching in normal and abnormal cases of commercial power.

[0045] Referring to Figure 2 The emergency switching and DALI switching circuit includes relays and operational amplifiers, constitutes a plurality of comparator circuits, and is used for time sequence switching driving relays; the relays are K1, K2 and K3, K1 is used for switching a dimming interface, and K2 is used for switching emergency power supply; the operational amplifiers are U2 and U3, U2 and U3 are built to form five comparator circuits for time sequence switching driving relays K1, K2 and K3.

[0046] The emergency switching and DALI switching circuit as shown in Figure 3As shown, when the mains is normal, Control_K1 outputs high potential, Q2 is turned on, K1 relay switches off the emergency power supply, then Control_K2 / K3 outputs high potential, Q1 is turned on, K2 relay switches on the mains power supply, finally K3 relay switches on the dimming interface; when the mains is abnormal, Control_K2 / K3 outputs low potential, Q1 is not turned on, K2 relay switches off the mains power supply, then K3 relay switches off the dimming interface, finally Control_K1 outputs low potential, Q2 is not turned on, K1 relay switches on the emergency power supply, driving to provide emergency lighting.

[0047] In summary, the utility model discloses a super wide emergency voltage adaptation centralized battery power supply emergency lighting controller, and the centralized battery power supply emergency lighting controller adopts Flyback scheme, realizes safe isolation, and low cost, small size, high PF value low harmonic, good EMC performance reduces the interference to power grid, can adapt to various market demands;Input end uses pressure sensitive resistance and other devices, has good surge resistance, lightning effect, can adapt to various bad electrical environment;The utility model discloses centralized battery power supply emergency lighting controller can adapt super wide emergency power supply, can match various integrated battery power supply emergency systems in market;The centralized battery power supply emergency lighting controller can support the switching of dimming function, can be matched with the drive with dimming function, for example: 0-10V dimming, DALI dimming etc., can simultaneously match multiple drives with one product, greatly reduces the quantity of area controller.

[0048] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An ultra-wide emergency voltage adaptation centralized battery powered emergency lighting controller, characterized by, The controller comprises an EMC filter rectifier circuit, a valley fill circuit, a mains detection circuit, a Flyback circuit, an output rectifier filter circuit, and an emergency switching and DALI switching circuit: One end of the EMC filter rectifier circuit is connected to an input port of an alternating voltage, and the other end is connected to the valley fill circuit; the valley fill circuit is connected with the mains detection circuit for detecting the state of the mains voltage and judging whether the mains is normal; the valley fill circuit is also connected with the Flyback circuit for converting the input alternating voltage into stable low-voltage direct current output; the Flyback circuit is connected with the emergency switching and DALI switching circuit through the output rectifier filter circuit; the emergency switching and DALI switching circuit automatically switches between the mains and the emergency power source through a relay, and is provided with a dimming interface input for controlling the switching of the dimming function.

2. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 1, wherein, The EMC filter rectifier circuit comprises a fuse, a surge protection design component, a first-stage filter and rectifier component, and a differential mode capacitor; the fuse is FU1, the surge protection design component is RV1, and the differential mode 1KV and common mode 2KV lightning protection test is passed; the first-stage filter and rectifier component is composed of C1, L1, and DB1; and the differential mode capacitor is C8.

3. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 2, wherein, The valley fill circuit comprises an electrolytic capacitor and a diode; the electrolytic capacitor comprises C4 and C9; the diode comprises D2, D3, and D10; and the charging and discharging of the capacitor optimizes the current harmonics.

4. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 3, wherein, The mains detection circuit comprises a voltage dividing resistor, a capacitor, and a triode; the voltage dividing resistor comprises R16, R19, and R22; the capacitor is C10; and the triode is Q3; R16, R19, R22, and C10 divide the mains voltage, and Q3 is a triode; when the mains is abnormal, the triode Q3 in the mains detection circuit is turned on, the mains voltage is lowered, Q3 is turned on to lower the LNK623 PIN2 voltage, and the switching is switched to the emergency mode; when the mains is normal, the mains voltage is raised, Q3 is turned off, and the switching is switched to the normal mode.

5. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 4, wherein, The Flyback circuit comprises a spike absorption component, a detection auxiliary winding voltage component, and a control chip; the spike absorption component is composed of D108, R18, C5, and R15; the detection auxiliary winding voltage component is composed of TR1B, R20, and R23; and the control chip is a control chip U1 with a built-in MOS switch; the control chip U1 in the Flyback circuit has a built-in MOS switch.

6. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 5, wherein, The output rectifier filter circuit comprises an energy storage element composed of TR1C, R14, C6, D1, R17, C7, and C13; when the built-in MOS switch of the control chip U1 is turned on, TR1A flows through the current, stores energy, and C7 and C13 provide the output voltage; when the built-in MOS switch of the control chip U1 is not turned on, TR1C releases the stored energy, charges C7 and C13, and provides the output voltage; and R14 and C6 absorb the transient spikes of D1.

7. The ultra-wide emergency voltage adapted centralized battery powered emergency lighting controller of claim 6, wherein, The emergency switching and DALI switching circuit comprises relays and operational amplifiers, and constitutes multiple comparator circuits for timing switching driving relays; the relays are K1, K2 and K3, K1 is used for switching a dimming interface, and K2 is used for switching emergency power supply; the operational amplifiers are U2 and U3, U2 and U3 are used for building five comparator circuits for timing switching driving relays K1, K2 and K3.

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