Emergency power supply and microwave induction dimming compatible circuit of UFO lamp
By designing an emergency power supply and microwave induction dimming compatible circuit in the UFO lighting fixture, the problem of control struggle between the emergency power supply and the dimming device in the emergency lighting system is solved, ensuring the normal operation of the lighting fixture in emergency situations and realizing the stability and intelligence of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-07
AI Technical Summary
Existing emergency lighting systems suffer from a power struggle between the emergency power supply and the dimming device, leading to malfunctions in the emergency lighting function.
Design an emergency power supply and microwave induction dimming compatible circuit for a UFO-shaped lamp. By setting up an AC/DC detection module and dimming circuit in the LED driver power supply, ensure that the dimming sensor loses control when the mains power fails, and the emergency power supply independently controls the lamp's operation.
This solution resolves the conflict between emergency lighting systems and dimming devices, ensuring that the lights function normally in emergency situations and improving the system's intelligence and stability.
Smart Images
Figure CN224097883U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the lighting technical field, especially to an emergency power supply and microwave induction dimming compatible circuit of a UFO lamp. BACKGROUND
[0002] Emergency lighting is an important safety facility of modern public buildings and industrial buildings, which is closely related to personal safety and building safety. When a building catches fire or other disasters occur and the power supply is interrupted, emergency lighting plays an important role in personnel evacuation, fire rescue work, and the continuation of important production, work or necessary operation.
[0003] At present, the emergency lighting system composed of the emergency power supply and the lamp is connected with light adjusting devices such as wall switches, timing switches and human motion sensors, so that the lamp can provide necessary lighting during the lighting demand period and remain low brightness or be turned off during other periods, so as to achieve the compatibility of energy saving, lamp utilization rate and emergency.
[0004] The addition of the above devices under normal power supply can indeed achieve the effect required by people, that is, the lamp can provide effective lighting during the time period when people are active, and the lamp can be turned off or half bright to achieve the effect of saving power resources in the case where lighting is not required.
[0005] However, when the lamp needs to provide emergency lighting without power supply, the emergency power supply actively provides power to the lamp and adjusts the power of the lamp to achieve the target emergency power. At this time, the light adjusting devices (wall light adjusting, timing light adjusting, motion sensing, etc.) connected to the lamp do not know that emergency should be given priority, so they will compete with the emergency light adjusting for the control right of the lamp. After a period of competition, the emergency power supply detects abnormal load and disconnects the power supply to the lamp according to the internal setting to protect the equipment, which makes the emergency lighting system unable to work normally. The most important responsibility of a complete emergency lighting system should be to provide emergency lighting. In this case, the emergency lighting system loses the most important emergency function. SUMMARY
[0006] The present application relates to the lighting technical field, especially to an emergency power supply and microwave induction dimming compatible circuit of a UFO lamp.
[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:
[0008] An emergency power supply and microwave induction dimming compatible circuit of a UFO lamp, comprising an emergency power supply, an LED driving power supply, a lamp and a dimming inductor; the lamp is connected with the LED driving power supply, the dimming inductor is arranged on the lamp and connected with the LED driving power supply; the emergency power supply is connected with the LED driving power supply, and an AC / DC detection module is arranged in the LED driving power supply.
[0009] Preferably, the LED driving power supply comprises a rectifier bridge, a PFC circuit, a Buck circuit, a dimming circuit module and an AC / DC detection module; the AC / DC detection module is connected with the rectifier bridge and the dimming circuit module respectively, the dimming circuit module is connected with the Buck circuit, and the rectifier bridge is connected with the PFC circuit.
[0010] Preferably, the dimming circuit module comprises a first relay and a dimming circuit, the dimming circuit comprises a first chip, a third capacitor, a fourth capacitor, a fifth capacitor and a ninth resistor; a first pin of the first chip is connected with one end of the third capacitor, the other end of the third capacitor is connected with the fourth capacitor and a Dim-pin of the emergency power supply respectively; one end of the fourth capacitor is connected with a fourth pin of the first chip; one end of the fifth capacitor is connected with a fifth pin of the first chip, and the other end of the fifth capacitor is grounded; an eighth pin of the first chip is connected with one end of the ninth resistor, and the other end of the ninth resistor is connected with a first pin of the first relay; the first pin and a second pin of the first relay are normally closed.
[0011] Preferably, the AC / DC detection module comprises an R / C circuit, an optical coupler, a voltage comparator and an amplification circuit; the R / C circuit comprises a first resistor, a second resistor and a first capacitor, the second resistor is connected with the first resistor and the first capacitor respectively, the first resistor is connected with the rectifier bridge, and the first capacitor is connected with the optical coupler.
[0012] Preferably, the amplification circuit comprises a first triode, a second triode and an eighth resistor; one end of the eighth resistor is connected with a base of the second triode, the other end of the eighth resistor is connected with a collector of the first triode, a collector of the second triode is connected with the first relay, and a base of the first triode is connected with an output end of the voltage comparator; an emitter of the first triode and an emitter of the second triode are connected and grounded.
[0013] Preferably, a positive input end of the voltage comparator is connected with the optical coupler, a sixth resistor is connected with a negative input end of the voltage comparator, the sixth resistor is connected with the optical coupler, and an output end of the voltage comparator is connected with the base of the first triode.
[0014] Preferably, the emergency power supply comprises a PICU chip, a battery pack module, a transformer energy conversion module, an inverter circuit energy conversion module and a second relay; the PICU chip is connected with the second relay and the transformer energy conversion module respectively, the battery pack module is connected with the transformer energy conversion module and the inverter circuit energy conversion module respectively, and the inverter circuit energy conversion module is connected with the second relay.
[0015] Preferably, the fourteenth pin and the fifteenth pin of the PICU chip are grounded, the twentieth pin of the PICU chip is connected with the second relay, and the twenty-eighth pin of the PICU chip is connected with the transformer energy conversion module.
[0016] Preferably, the twenty-fifth pin of the PICU chip is connected with a fourth resistor, the fourth resistor is connected with the gate of a first field effect tube, the drain of the first field effect tube is connected with a sixth resistor, one end of the sixth resistor is connected with the gate of the first field effect tube and the fourth resistor respectively, and the source of the first field effect tube is connected with a seventh resistor.
[0017] Preferably, the twenty-sixth pin of the PICU chip is connected with a third resistor, the third resistor is connected with a fifth resistor, and the fifth resistor is connected with the drain of the first field effect tube and the sixth resistor respectively.
[0018] Compared with the prior art, the present application has the following beneficial effects:
[0019] The present application designs an emergency power supply and a microwave induction dimming compatible circuit of a UFO lamp, when the lamp is supplied with commercial power, the LED driving power supply detects AC input, the circuit connects the left emergency power supply and the dimming signal of the right dimming inductor, and the whole lamp system works normally; when the commercial power is cut off, the front emergency power supply switches to DC output to the LED driving power supply, the LED driving power supply detects DC input, and the dimming signal of the right dimming inductor is disconnected, so that the dimming inductor loses effect in the emergency stage, and the normal work of the emergency is ensured; the conflict phenomenon of the UFO lamp when the emergency and the dimming inductor are used at the same time is solved, and the normal work of the whole lamp system is ensured; and the present application can match various emergencies and various sensors, and has strong universality.
[0020] The emergency power supply detects the power-on and power-off of the mains electricity; when the mains electricity is connected, the emergency power supply detects the mains electricity signal and transmits the working signal to the LED driving power supply through the dimming line, in this stage, the LED driving power supply receives the signals of the emergency power supply and the dimming sensor, and the lamp system works normally; when the mains electricity is disconnected, the emergency power supply detects the power-off of the mains electricity and transmits the emergency signal to the LED driving power supply through the dimming line, the LED driving power supply receives the emergency signal and no longer executes the signal from the dimming sensor, and feedback information is given to the emergency power supply to control the emergency state; the conflict phenomenon of the UFO lamp when the emergency power supply and the dimming sensor are used at the same time is solved, and the normal work of the whole lamp system is ensured; the intelligent degree is high, the work is stable, the microwave is developed in the later period, and more functions can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0022] Figure 1 The structural schematic diagram of the present application is shown in the figure;
[0023] Figure 2 The structural schematic diagram of the embodiment of the present application is shown in the figure;
[0024] Figure 3 The circuit diagram of the LED driving power supply of the present application is shown in the figure;
[0025] Figure 4 The circuit diagram of the lamp of the present application is shown in the figure;
[0026] Figure 5 The circuit diagram of the emergency power supply of the present application is shown in the figure.
[0027] Legend:
[0028] 1, emergency power supply, 2, LED driving power supply, 3, lamp, 4, dimming sensor, S1, dimming circuit, S2, R / C circuit, S3, voltage comparator, S4, amplification circuit, S5, AC / DC detection module, S6, PFC circuit, S7, Buck circuit. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0030] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more; In addition, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0031] Referring to Figures 1 to 5 As shown in the figure, an emergency power supply and microwave induction dimming compatible circuit of a UFO lamp includes an emergency power supply 1, an LED driving power supply 2, a lamp 3 and a dimming inductor 4; The lamp 3 is connected with the LED driving power supply 2, and the dimming inductor 4 is placed on the lamp 3 and connected with the LED driving power supply 2; The emergency power supply 1 is connected with the LED driving power supply 2, and an AC / DC detection module S5 is arranged in the LED driving power supply 2; The dimming circuit S1 converts the external dimming signal into a control signal to control the current output by the Buck circuit S7.
[0032] The LED driving power supply 2 comprises a rectifier bridge D1, a PFC circuit S6, a Buck circuit S7, a dimming circuit module and an AC / DC detection module S5; the AC / DC detection module S5 is connected with the rectifier bridge D1 and the dimming circuit module respectively, the dimming circuit module is connected with the Buck circuit S7, and the rectifier bridge D1 is connected with the PFC circuit S6; the dimming circuit module comprises a first relay Relay-1 and a dimming circuit S1, the dimming circuit S1 comprises a first chip U, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5 and a ninth resistor R9; a first pin of the first chip U is connected with one end of the third capacitor C3, the other end of the third capacitor C3 is connected with the fourth capacitor C4 and a Dim-pin of the emergency power supply 1 respectively; one end of the fourth capacitor C4 is connected with a fourth pin of the first chip U; one end of the fifth capacitor C5 is connected with a fifth pin of the first chip U, and the other end of the fifth capacitor C5 is grounded; an eighth pin of the first chip U is connected with one end of the ninth resistor R9, and the other end of the ninth resistor R9 is connected with a first pin of the first relay Relay-1; the first pin and a second pin of the first relay Relay-1 are normally closed.
[0033] The AC / DC detection module S5 comprises an R / C circuit S2, an optocoupler U1, a voltage comparator S3 and an amplification circuit S4; the R / C circuit S2 comprises a first resistor R1, a second resistor R2 and a first capacitor C1, the second resistor R2 is connected with the first resistor R1 and the first capacitor C1 respectively, the first resistor R1 is connected with the rectifier bridge D1, and the first capacitor C1 is connected with the optocoupler U1; the R / C circuit S2 is direct current isolation and alternating current transmission, a low level is formed at the optocoupler U1 end in a direct current, and a high level is formed at the optocoupler U1 end in an alternating current; the optocoupler U1 transmits the signal formed by the R / C circuit S2 to the rear end; a low level is outputted in a primary high level, and a high level is outputted in a primary low level; the voltage comparator S3 compares the voltage of the same phase end, a high level is outputted in a same phase high level, and a low level is outputted in a same phase low level, so as to prevent interference and avoid circuit misoperation; the amplification circuit S4 composed of double triodes amplifies the signal outputted by the comparator and is used for driving the relay; the first relay Relay-1 is a 1, 2 pin normally closed relay, when the control signal is a high level, the 1, 2 pin connection is disconnected, that is, the outgoing dimming line is disconnected, and the connection of Sensor is disconnected.
[0034] The amplification circuit S3 comprises a first triode Q1, a second triode Q2 and an eighth resistor R8; one end of the eighth resistor R8 is connected with the base of the second triode Q2, the other end of the eighth resistor R8 is connected with the collector of the first triode Q1, the collector of the second triode Q2 is connected with the first relay Relay-1, the base of the first triode Q1 is connected with the output end of the voltage comparator S3; the emitter of the first triode Q1 and the emitter of the second triode Q2 are connected and grounded; the positive input end of the voltage comparator S3 is connected with the optocoupler U1, the negative input end of the voltage comparator S3 is connected with a sixth resistor R6, the sixth resistor R6 is connected with the optocoupler U1, and the output end of the voltage comparator S3 is connected with the base of the first triode.
[0035] The emergency power supply 1 comprises a PICU chip, a battery module, a transformer energy conversion module, an inverter circuit energy conversion module and a second relay Relay; the PICU chip is connected with the second relay Relay and the transformer energy conversion module respectively, the battery module is connected with the transformer energy conversion module and the inverter circuit energy conversion module respectively, and the inverter circuit energy conversion module is connected with the second relay Relay; the fourteenth pin and the fifteenth pin of the PICU chip are grounded, the twentieth pin of the PICU chip is connected with the second relay Relay, the twenty-eighth pin of the PICU chip is connected with the transformer energy conversion module, the twenty-fifth pin of the PICU chip is connected with a fourth resistor R4, the fourth resistor R4 is connected with the gate of a first field effect tube, the drain of the first field effect tube is connected with a sixth resistor R6, one end of the sixth resistor R6 is connected with the gate of the first field effect tube and the fourth resistor R4 respectively, the source of the first field effect tube is connected with a seventh resistor R7; the twenty-sixth pin of the PICU chip is connected with a third resistor R3, the third resistor R3 is connected with a fifth resistor R5, the fifth resistor R5 is connected with the drain of the first field effect tube and the sixth resistor R6 respectively; the second relay Relay is controlled by a single-chip microcomputer, and realizes the conversion of the mains output and the emergency output; the two single-chip microcomputers are responsible for the signal detection and control of the circuits respectively, and realize the output of the circuits; wherein a group of DIM signals connected in series are responsible for the signal communication work between the emergency and the LED driving power supply 2; when the mains is on, the two circuits work normally; when the emergency is on, the Driver DIM of the emergency power supply 1 and the DIM 1 of the LED driving power supply 2 maintain fixed communication, and the signal of the DIM2 of the LED driving power supply 2 will be shielded and not execute the command.
[0036] As Figure 1 , Figure 3As shown, an AC / DC detection module S5 is added inside the LED driving power supply 2. When the power supply is provided to the lamp 3, the LED driving power supply 2 detects the AC input, the circuit connects the left emergency power supply 1 and the right dimming sensor 4, and the whole lamp system works normally. When the power supply is interrupted, the front emergency power supply 1 switches to DC output to the LED driving power supply 2, the LED driving power supply 2 detects the DC input, and the dimming signal of the right dimming sensor 4 is disconnected, so that the dimming sensor 4 loses the function in the emergency stage, ensuring the normal work of the emergency. The conflict phenomenon of the UFO lamp when using the emergency and dimming sensor at the same time is solved, and the normal work of the whole lamp system is ensured. It can match various emergency and various sensors, and has strong versatility.
[0037] As shown in Figure 2 , the Sensor DIM+ line originally connected to the lamp 3 is disconnected from the LED driving power supply 2 by physical rewiring, and then separately led out from the LED driving power supply 2 and connected to the Sensor Dim+ end of the emergency power supply 1. When the power supply is connected, the Sensor DIM+ line is connected to the Sensor Dim+ end of the emergency power supply 1, the internal of the emergency power supply 1 connects Sensor Dim+ and Dri DIM+ to conduct, realizing the function of the dimming sensor 4, and the whole lamp system works normally. When the power supply is interrupted and enters the emergency state, the internal of the emergency power supply 1 disconnects Sensor Dim+ and Dri DIM+, which removes the control function of Sensor DIM+ from the lamp, realizes the normal work of the emergency, solves the conflict phenomenon of the UFO lamp when using the emergency and dimming sensor 4 at the same time, and ensures the normal work of the whole lamp system. It can match various emergency and various sensors, has strong versatility, and has low cost.
[0038] As shown in Figure 1 , Figure 4 , Figure 5As shown, the emergency power supply 1 detects the power-on and power-off of the mains; when the mains is connected, the emergency power supply 1 detects the mains signal and transmits the working signal to the LED driving power supply 2 through the dimming line, in this stage, the LED driving power supply 2 receives the signals from the emergency power supply 1 and the dimming sensor 4 at the same time, and the lamp system works normally; when the mains is disconnected, the emergency power supply 1 detects the power-off of the mains and transmits the emergency signal to the LED driving power supply 2 through the dimming line, the LED driving power supply 2 receives the emergency signal and no longer executes the signal from the dimming sensor 4, and feedback information to the emergency power supply 1, which controls the emergency state; in this stage, the emergency power supply 1, the LED driving power supply 2 and the lamp 3 work normally, and the dimming sensor 4 does not work; the conflict phenomenon of the UFO lamp when using the emergency power supply 1 and the dimming sensor 4 at the same time is solved, and the normal work of the whole lamp system is ensured; the intelligent degree is high, the work is stable, the microwave can be developed in the later stage, and more functions can be realized.
[0039] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. An emergency power supply and microwave induction dimming compatible circuit for a UFO-shaped lamp, characterized in that, It includes an emergency power supply, an LED driver power supply, a lamp, and a dimming sensor; the lamp is connected to the LED driver power supply, and the dimming sensor is placed on the lamp and connected to the LED driver power supply; the emergency power supply is connected to the LED driver power supply, and the LED driver power supply is equipped with an AC / DC detection module.
2. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 1, characterized in that, The LED driver power supply includes a rectifier bridge, a PFC circuit, a Buck circuit, a dimming circuit module, and an AC / DC detection module; the AC / DC detection module is connected to the rectifier bridge and the dimming circuit module respectively, the dimming circuit module is connected to the Buck circuit, and the rectifier bridge is connected to the PFC circuit.
3. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 2, characterized in that, The dimming circuit module includes a first relay and a dimming circuit. The dimming circuit includes a first chip, a third capacitor, a fourth capacitor, a fifth capacitor, and a ninth resistor. A first pin of the first chip is connected to one end of the third capacitor, and the other end of the third capacitor is connected to the fourth capacitor and the Dim-pin of the emergency power supply. One end of the fourth capacitor is connected to the fourth pin of the first chip. One end of the fifth capacitor is connected to the fifth pin of the first chip, and the other end of the fifth capacitor is grounded. An eighth pin of the first chip is connected to one end of the ninth resistor, and the other end of the ninth resistor is connected to the first pin of the first relay. The first and second pins of the first relay are normally closed.
4. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 3, characterized in that, The AC / DC detection module includes an R / C circuit, an optocoupler, a voltage comparator, and an amplifier circuit; the R / C circuit includes a first resistor, a second resistor, and a first capacitor, the second resistor is connected to the first resistor and the first capacitor respectively, the first resistor is connected to the rectifier bridge, and the first capacitor is connected to the optocoupler.
5. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 4, characterized in that, The amplifier circuit includes a first transistor, a second transistor, and an eighth resistor; one end of the eighth resistor is connected to the base of the second transistor, and the other end of the eighth resistor is connected to the collector of the first transistor. The collector of the second transistor is connected to the first relay, and the base of the first transistor is connected to the output terminal of the voltage comparator. The emitters of the first transistor and the second transistor are connected and grounded.
6. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 5, characterized in that, The positive input terminal of the voltage comparator is connected to the optocoupler, the negative input terminal of the voltage comparator is connected to a sixth resistor, the sixth resistor is connected to the optocoupler, and the output terminal of the voltage comparator is connected to the base of the first transistor.
7. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 6, characterized in that, The emergency power supply includes a PICU chip, a battery module, a transformer energy conversion module, an inverter circuit energy conversion module, and a second relay. The PICU chip is connected to the second relay and the transformer energy conversion module, the battery module is connected to the transformer energy conversion module and the inverter circuit energy conversion module, and the inverter circuit energy conversion module is connected to the second relay.
8. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 7, characterized in that, The fourteenth and fifteenth pins of the PICU chip are grounded, the twentieth pin of the PICU chip is connected to the second relay, and the twenty-eighth pin of the PICU chip is connected to the transformer energy conversion module.
9. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 8, characterized in that, The 25th pin of the PICU chip is connected to the fourth resistor, which is connected to the gate of the first field-effect transistor. The drain of the first field-effect transistor is connected to a sixth resistor, one end of which is connected to both the gate of the first field-effect transistor and the fourth resistor. The source of the first field-effect transistor is connected to a seventh resistor.
10. The emergency power supply and microwave induction dimming compatible circuit for a UFO lamp according to claim 9, characterized in that, The 26th pin of the PICU chip is connected to a third resistor, which is connected to a fifth resistor. The fifth resistor is connected to the drain of the first field-effect transistor and a sixth resistor, respectively.