Dual-purpose drive circuit for emergency lighting and normal lighting

Abstract

The utility model discloses a dual-purpose drive circuit for emergency lighting and normal lighting, aims to solve the problem that in the prior art, emergency lighting and normal lighting drive are not compatible, and provides the dual-purpose drive circuit for emergency lighting and normal lighting, which comprises a lighting lamp and an integrated dual-purpose drive module, the module is provided with an alternating current processing module, a charging module, a power supply switching module, a variable voltage output module and a processor module and can be compatible with an isolated or non-isolated lamp structure, the alternating current processing module has the functions of rectification, filtering and constant voltage and ensures the stability of a power supply, and the design not only enhances the reliability and the safety of a lighting system, but also reduces the cost and reduces the waste of resources.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically a dual-purpose driving circuit for emergency and normal lighting. It aims to achieve the dual functions of normal and emergency lighting by integrating an emergency power supply and an intelligent switching mechanism, thereby enhancing the reliability and safety of the lighting system. Background Technology

[0002] Existing lighting systems are generally divided into two types: normal lighting and emergency lighting, which are relatively independent in terms of circuit design and function. Normal lighting systems rely on mains power, while emergency lighting systems use a separate emergency power supply to activate when mains power is interrupted. However, this separate design not only increases costs but may also lead to resource waste. Specifically, 1) Integrated conventional emergency products have limited functionality: Existing conventional emergency lighting products are integrated designs, offering only emergency lighting functionality and lacking normal lighting capabilities. 2) Separate dual-purpose drivers have complex wiring: Other separate designs exist on the market, offering optional drivers that can provide both emergency and normal lighting functions, but the wiring is complex and can easily damage the luminaires. 3) Separate dual-purpose drivers have poor compatibility with luminaires: Existing separate emergency drivers on the market have design limitations when driving normal lighting luminaires, namely, incompatibility between isolated and non-isolated driver schemes. This limitation makes it difficult for consumers to determine the driver scheme when purchasing normal lighting products, thus hindering their ability to make informed purchasing decisions.

[0003] Therefore, it is particularly important to develop a dual-purpose drive circuit that can meet the needs of both normal lighting and emergency lighting. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a dual-purpose driving circuit for emergency lighting and normal lighting. This dual-purpose driving module can be compatible with isolated or non-isolated luminaire structures to achieve dual-purpose functionality.

[0005] To achieve the above objectives, this utility model provides a dual-purpose driving circuit for both emergency and normal lighting, comprising a lighting fixture and an integrated dual-purpose driving module. The output terminal of the dual-purpose driving module has a power supply port for electrical connection to the lighting fixture. A preset mains power supply is connected to the input terminal of the dual-purpose driving module, and a preset emergency power supply is bidirectionally electrically connected to the dual-purpose driving module. The dual-purpose driving module includes:

[0006] - AC power processing module: used to rectify, filter, and regulate the AC power supplied by the mains power source;

[0007] - Charging module: Used to connect electrically to the AC power processing module and to charge the emergency power supply under normal conditions;

[0008] - Power supply switching module: It is electrically connected to the output terminals of the AC power processing module and the emergency power supply respectively, and is used to switch the power output of the AC power processing module and the emergency power supply as needed;

[0009] - Transformer output module: Connects electrically to the output terminal and power supply port of the power supply switching module respectively.

[0010] - Processor module: It is electrically connected to the AC power processing module, charging module, power supply switching module and transformer output module respectively.

[0011] Furthermore, the AC power processing module includes a rectifier module, a filter module, and a constant voltage module connected in sequence. The rectifier module is connected to the neutral wire and the live wire of the mains power supply, respectively, and the output terminal of the constant voltage module is electrically connected to the charging module and the power supply switching module.

[0012] Furthermore, the emergency power supply and the dual-purpose drive module are designed as a single unit.

[0013] The advantages of this invention, which adopts the above-mentioned solution, are as follows: 1) Enhanced reliability and safety: By integrating emergency power supply and intelligent switching mechanism, this invention provides emergency lighting function while ensuring normal lighting, thereby enhancing the reliability and safety of the lighting system. 2) Reduced cost and resource waste: The dual-purpose drive circuit design avoids the separate design of normal lighting and emergency lighting systems, reducing costs and minimizing resource waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a dual-purpose drive circuit.

[0015] Figure 2 This is a schematic diagram of a dual-purpose drive circuit.

[0016] Figure 3 This is the circuit schematic of a dual-purpose drive circuit.

[0017] Among them, 1-dual-purpose drive module, 11-AC power processing module, 12-power supply switching module, 13-charging module, 14-transformer output module, 15-processing module, 2-lighting fixture, 3-mains power supply, 4-emergency power supply. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description of it is provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] See appendix Figure 1-3 As shown in this embodiment, a dual-purpose driving circuit for emergency lighting and normal lighting includes a lighting fixture 2 and an integrated dual-purpose driving module 1. The lighting fixture 2 can be an isolated or non-isolated lighting fixture structure. For those skilled in the art, conventional isolated lighting fixtures refer to those that use a transformer to achieve complete isolation between the lighting fixture and the power supply; conventional non-isolated lighting fixtures refer to those where the ground wire of the power supply is directly connected to the ground wire of the lighting fixture, and the input and output of the power supply are not completely isolated electrically. The dual-purpose driving module 1 of this application can be compatible with both isolated and non-isolated lighting fixtures to achieve the dual-purpose function.

[0020] In this embodiment, the output end of the dual-purpose drive module 1 has a power supply port for electrical connection of the lighting fixture 2. The input end of the lighting fixture 2 can be electrically connected to the power supply port. For the convenience of connection between the two, the power supply port can be designed as a standardized socket such as the national standard or European standard, while the input end of the lighting fixture 2 can be designed as a standardized plug that is compatible with it, thereby realizing quick connection operation between the two.

[0021] In this embodiment, a preset mains power supply 3 is connected to the input terminal of the dual-purpose drive module 1, that is, the mains power supply 3 provides normal power to the dual-purpose drive module 1. Meanwhile, a preset emergency power supply 4 is connected to the dual-purpose drive module 1 via a two-phase electrical connection. Under normal conditions, the dual-purpose drive module 1 charges the emergency power supply 4 using the mains power supply 3. In an emergency situation where the mains power supply 3 fails, the emergency power supply 4 supplies power to the dual-purpose drive module 1.

[0022] In this embodiment, the core components of the dual-purpose drive module 1 include an AC power processing module 11, a charging module 13, a power supply switching module 12, a transformer output module 14, and a processor module 15.

[0023] Specifically, see Appendix Figure 2 and 3As shown, the AC power processing module 11 is responsible for processing the AC power supplied by the mains power source 3. Specifically, it includes a rectifier module, a filter module, and a constant voltage module. The rectifier module converts AC power to DC power. It mainly uses rectifier diodes or rectifier bridges to convert the negative and positive half-cycles of the AC power to the positive and negative terminals of the DC power, respectively. The input terminal of the rectifier module is connected to the neutral and live wires of the mains power source 3, and its output terminal is connected to the filter module. The filter module further smooths the DC power output from the rectifier module, reducing voltage fluctuations and ripple. It mainly uses capacitors and other components to store and discharge energy in the DC power, thereby smoothing the output voltage. The input terminal of the filter module is connected to the output terminal of the rectifier module, and its output terminal is connected to the constant voltage module. The constant voltage module ensures stable output voltage, providing a stable DC power supply for the subsequent charging module 13 and power switching module 12. It primarily utilizes components such as Zener diodes and voltage regulator ICs to regulate the DC power output from the filtering module. The input terminal of the constant voltage module is connected to the output terminal of the filtering module, while its output terminals are connected to the charging module 13 and power switching module 12, respectively. The aforementioned AC power processing module 11 processes the AC power supplied by the mains power source 3, providing a stable DC power supply for the subsequent charging module 13 and power switching module 12, thereby ensuring the reliability and stability of the lighting system.

[0024] Specifically, the main function of the charging module 13 is to use the DC power processed by the AC power processing module 11 to charge the emergency power supply 4 normally. The charging module 13 uses the DC power processed by the AC power processing module 11 to supply the DC / DC conversion circuit, thereby charging the emergency power supply 4.

[0025] Specifically, the power supply switching module 12 acts as a timely switching control between the emergency power supply 4 and the mains power supply 3. When the mains power supply 3 experiences a power outage, it automatically switches to the emergency power supply 4 to ensure continuous power supply to the lighting fixture 2. The power supply switching module 12 monitors the status of the mains power supply 3 in real time through its internal detection circuit, including parameters such as voltage and current. When the power supply switching module 12 detects an abnormality in the mains power supply 3 (such as a power outage), it triggers a switching condition. Once the switching condition is triggered, the power supply switching module 12 immediately disconnects from the mains power supply 3 and simultaneously connects to the emergency power supply 4, ensuring that the lighting fixture 2 can continue to operate. Therefore, when the mains power is normal: the lighting fixture 2 is powered by the mains power supply 3, while the emergency power supply 4 is charging. The power supply switching module 12 monitors the mains power status in real time and is prepared to perform the switch when needed. When the mains power is interrupted, when the mains power supply 3 is interrupted, the power supply switching module 12 immediately detects this change and triggers the switching condition. When switching to emergency power supply 4, the power switching module 12 quickly disconnects from the mains power supply 3 and connects to emergency power supply 4. At this time, the lighting fixture 2 is powered by emergency power supply 4 and continues to provide illumination. During the period when emergency power supply 4 is providing power, the lighting fixture 2 will maintain normal operation until the emergency power supply 4 is depleted or the mains power supply 3 is restored.

[0026] Specifically, the transformer output module 14 is electrically connected to the output terminal and the power supply port of the power supply switching module 12, respectively. Its main function is to adjust the input voltage and convert it into the required output voltage to meet the needs of different types of lighting fixtures 2. Since the input voltage requirements of non-isolated and isolated lighting fixtures are different, the voltage from the power supply switching module 12 is converted into a suitable and stable voltage and current through the power supply port by means of the transformer output module 14 to drive the lighting fixtures 2.

[0027] Specifically, the processor module 15 serves as the core control unit of the entire dual-purpose drive module 1. The processor module 15 is electrically connected to the AC power processing module 11, the charging module 13, the power supply switching module 12, and the transformer output module 14, respectively. It is responsible for monitoring the working status of each module, coordinating the operation between each module, and realizing intelligent control.

[0028] In summary, by integrating the emergency power supply 4 and the intelligent switching mechanism, this invention provides emergency lighting functionality while ensuring normal lighting, thereby enhancing the reliability and safety of the lighting system. Furthermore, when the mains power supply is normal, the emergency power supply 4 is in a charging state, requiring no additional energy consumption; in the event of a mains power outage, the emergency power supply 4 can quickly activate, reducing energy waste.

[0029] Furthermore, the emergency power supply 4 and the dual-purpose drive module 1 are designed as a single unit, which can be integrated into the same housing in actual products, making it easier for actual products to be sold and used, and reducing wiring difficulties.

[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. An emergency lighting normal lighting dual purpose drive circuit, characterized by: It includes a lighting fixture (2) and an integrated dual-purpose drive module (1). The output end of the dual-purpose drive module (1) has a power supply port for the lighting fixture (2) to be electrically connected. A preset mains power supply (3) is connected to the input end of the dual-purpose drive module (1), and a preset emergency power supply (4) is bidirectionally electrically connected to the dual-purpose drive module (1). The dual-purpose drive module (1) includes: - AC power processing module (11): used to rectify, filter and stabilize the AC power connected to the mains power supply (3); -Charging module (13): used to connect to the AC power processing module (11) and to charge the emergency power supply (4) under normal conditions; - Power supply switching module (12): It is electrically connected to the output terminals of AC power processing module (11) and emergency power supply (4) respectively, and is used to switch the power output of AC power processing module (11) and emergency power supply (4) in a timely manner; - Transformer output module (14): It is electrically connected to the output terminal and power supply port of the power supply switching module (12) respectively; - Processor module (15): It is electrically connected to the AC power processing module (11), the charging module (13), the power supply switching module (12) and the transformer output module (14), respectively.

2. The dual-purpose driving circuit for emergency lighting and normal lighting according to claim 1, characterized in that: The AC power processing module (11) includes a rectifier module, a filter module and a constant voltage module connected in sequence. The rectifier module is connected to the neutral wire and the live wire of the mains power supply (3) respectively. The output terminal of the constant voltage module is electrically connected to the charging module (13) and the power supply switching module (12).

3. The dual-purpose driving circuit for emergency lighting and normal lighting according to claim 1, characterized in that: The emergency power supply (4) is integrated with the dual-purpose drive module (1).

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