Novel multifunctional power supply

Abstract

The utility model discloses a novel multifunctional power supply. The novel multifunctional power supply comprises a cabinet; the two input ends comprise a 220V commercial power input end and a UPS (Uninterrupted Power Supply) 220V input end; the input conversion module is used for switching mains supply and UPS power supply input; a main power supply and a standby power supply; the main and standby power supply conversion module is used for automatically switching to a standby power supply when the main power supply fails; the fire-fighting linkage circuit is used for controlling power supply states of different devices through fire-fighting signals; the output indicating device indicates the working state of the power supply; the output port provides power output; the fire-fighting linkage input interface and the fire-fighting linkage dial switch are used for setting and adjusting a fire-fighting linkage function; the filter circuit is used for filtering interference in the power supply signal; according to the novel multifunctional power supply, through combination of a plurality of functional modules, a high-reliability, high-safety, automatic and intelligent power management system is provided, and a plurality of key problems of power management, fault switching, emergency response, equipment protection and the like in a complex environment are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a novel multifunctional power supply. BACKGROUND

[0002] In modern power systems, especially in some special environments or industry applications, the stability and reliability of power supply equipment are crucial. In order to meet the power supply needs of different devices and applications, the existing power supply technology generally adopts a main power output for multiple power lines, which are distributed to different devices for use. Although this design can meet the basic power distribution needs, it has several limitations and deficiencies, and cannot cope with the increasingly complex and diversified actual use scenarios.

[0003] Firstly, the traditional power supply system design often simply divides the main power into multiple outputs, lacking intelligent switching function for input power sources (such as mains, UPS power, etc.). When the mains fails or power fluctuates, the existing system may not automatically switch to the backup power (such as UPS), which may cause power interruption, device downtime or data loss, affecting the continuous operation of the device and the reliability of the system.

[0004] Secondly, the multiple outputs in traditional power supply design often lack sufficient intelligence and flexibility, and cannot be adjusted in real time according to different application scenarios and device needs. For example, in some specific situations, some devices need to be powered off according to emergency or safety needs (such as safety devices in the fire protection system), while other devices still need continuous power supply. The traditional design often cannot meet such complex needs, lacking corresponding linkage control mechanism.

[0005] In addition, the power protection function in the existing technology is often limited to overload protection or simple short circuit protection, without fully considering the long-term stability and safety of the power supply system. For example, the power supply may have electromagnetic interference, overcurrent, overvoltage, etc. These problems may cause damage to the device, and the traditional power supply design cannot effectively solve these problems, resulting in shortened service life of the device, and even failure.

[0006] Therefore, the existing power supply design, while meeting basic functions, often ignores a variety of complex power management needs. With the continuous change of application scenarios, especially in some fields with high requirements for power stability, reliability and intelligent management, the traditional single power output system has been unable to meet the needs of actual use. A more flexible, intelligent and multi-functional power management solution is needed, which can automatically switch power, provide emergency response, realize intelligent linkage of devices, and provide perfect power protection measures to ensure stable operation of devices in complex environments. INVENTION CONTENTS

[0007] The utility model discloses a novel multifunctional power supply which combines multiple function modules to provide a power management system with high reliability, high safety, automation and intelligence, and solves multiple key problems such as power management, fault switching, emergency response and equipment protection in complex environments.

[0008] The utility model discloses a novel multifunctional power supply which combines multiple function modules to provide a power management system with high reliability, high safety, automation and intelligence, and solves multiple key problems such as power management, fault switching, emergency response and equipment protection in complex environments.

[0009] A novel multifunctional power supply comprises:

[0010] A case;

[0011] Two input ends including a 220V mains input end and a UPS 220V input end;

[0012] An input conversion module for switching mains and UPS power input;

[0013] A main power supply and a backup power supply;

[0014] A main-backup power conversion module for automatically switching to the backup power supply when the main power supply fails;

[0015] A fire-fighting linkage circuit for controlling the power supply state of different devices through a fire-fighting signal;

[0016] An output indication device for indicating the power supply working state;

[0017] An output port for providing power output;

[0018] A fire-fighting linkage input interface and a fire-fighting linkage dial switch for setting and adjusting the fire-fighting linkage function;

[0019] A filter circuit for filtering interference in the power signal;

[0020] An overcurrent protection circuit for preventing overload damage to the power supply device;

[0021] A fault alarm circuit for detecting power supply faults and outputting an alarm signal.

[0022] Preferably, the input switching module comprises:

[0023] A mains control circuit for starting and performing time delay when mains is connected, starting the main power supply and the backup power supply for power supply;

[0024] A trigger prevention forced locking circuit for locking the UPS voltage input at the initial power-on stage and prohibiting the UPS power supply;

[0025] A UPS voltage input locking device for automatically switching to the UPS power supply when the mains power is off.

[0026] Preferably, the main-backup power switching module comprises:

[0027] a main power supply voltage detection circuit for detecting whether the main power supply voltage is lower than a rated value in real time;

[0028] a control circuit and a switching device, which automatically switch to the standby power supply when the main power supply voltage is detected to be lower than 85%;

[0029] a fault alarm circuit for sending an alarm signal when both the main power supply and the standby power supply fail.

[0030] Preferably, the main power supply and standby power supply switching module is provided with a sensitivity adjusting device for adjusting the reaction sensitivity of the power supply switching device.

[0031] Preferably, the fire-fighting linkage circuit comprises:

[0032] a fire-fighting signal input interface for receiving signals from a fire-fighting system;

[0033] a fire-fighting linkage dial switch for setting linkage functions in different scenarios;

[0034] a disconnecting device for disconnecting specific fire-fighting access control equipment;

[0035] a shunt circuit for distributing power supply to different equipment according to the fire-fighting linkage signal.

[0036] Preferably, the case comprises:

[0037] a panel provided with output indication, main power supply and standby power supply switching test switches, main power supply and standby power supply working indicator lights, and main power supply and standby power supply voltage regulators;

[0038] an internal circuit board comprising a main power supply, a standby power supply, a main power supply and standby power supply switching circuit board, an input dual power supply switching board, and an output shunt board;

[0039] a back plate comprising a mains input and emergency power supply input socket, a fire-fighting linkage interface, an alarm output interface, a dialer, and a plurality of output terminals.

[0040] Preferably, the input conversion module, the main power supply and standby power supply switching module, and the fire-fighting linkage circuit are connected through integrated circuits.

[0041] The utility model has the advantages of:

[0042] Fire-fighting linkage: for example, in an airport scenario, there are general access control, fire-fighting access control, monitoring cameras, and other equipment, different power supply requirements are selected through the dial switch, and when a dangerous situation occurs, the fire-fighting linkage switch signal received will automatically switch to control the fire-fighting door to open, saving emergency escape time. At the same time, the general access control and monitoring equipment are normally powered. The control requirements can be easily set, and the power supply problem can be solved more conveniently and quickly.

[0043] Dual input voltage: in order to the continuity power supply demand, set up the city electricity and emergency power supply (UPS) electricity demand, city electricity gives the device continuous long-term power supply, when the city electricity power failure will automatically switch to emergency power supply, while the alarm output, provides the continuous power supply requirements, more convenient time-saving

[0044] Internal dual power backup: in order to the continuity power supply demand, set up the dual power supply, when the main power failure, automatically switch to standby power supply, while the alarm output, for the power supply equipment provides the continuous power supply, solves the power failure problem

[0045] Panel indication, power supply is installed in the machine 19 inch cabinet, very convenient through the panel LED indicator to view the power supply of each output state, if which way out of the road failure is easy to repair which way, save a lot of troubleshooting time. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 A novel multifunctional power supply of the utility model is a principle block diagram of the utility model;

[0047] Figure 2 A novel multifunctional power supply of the utility model is an input switching module principle block diagram of the utility model;

[0048] Figure 3 A novel multifunctional power supply of the utility model is a main and standby power supply switching module principle block diagram of the utility model;

[0049] Figure 4 A novel multifunctional power supply of the utility model is a fire-fighting linkage and shunt output principle block diagram of the utility model;

[0050] Figure 5 A novel multifunctional power supply of the utility model is a dual input module circuit diagram of the utility model;

[0051] Figure 6 A novel multifunctional power supply of the utility model is a main and standby power supply switching module circuit diagram of the utility model;

[0052] Figure 7 A novel multifunctional power supply of the utility model is an alarm linkage and output part circuit diagram of the utility model. DETAILED DESCRIPTION

[0053] The principles and features of the present application are described below with reference to the accompanying drawings, and the examples are used only to explain the present application and are not intended to limit the scope of the present application. The present application is described in more detail below with reference to the accompanying drawings. The advantages and features of the present application will be more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and use non-precise proportions, only to facilitate, clarify the purpose of assisting the description of the embodiments of the present application.

[0054] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal" 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 terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more of the features. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items. Embodiment

[0056] Referring to Figure 1 and Figures 5-7 As shown in the figure, the novel multifunctional power supply device adopts a 19-inch standard case design, is provided with two input ends (mains input and UPS power input), realizes switching between mains and UPS power through an input conversion module, ensures stable power supply of the equipment under different power input. The power supply device includes a main power supply, a backup power supply, a main backup power supply switching module, a fire linkage circuit and other core modules, can automatically switch the main backup power supply, monitors the power supply state in real time, and realizes the fire linkage function, ensures safe operation of the equipment in emergency.

[0057] The power supply device adopts a 19-inch case, and the front panel of the case is provided with output indicator light, main and standby power supply switching test switch, main and standby power supply working indicator light and main and standby power supply voltage regulating knob; the back panel of the case is provided with power input socket, UPS input socket, fire linkage interface, alarm output interface, dialer, multiple output ports (supporting multiple output distribution) and other interfaces. Each part is connected perfectly to ensure convenient operation and monitoring.

[0058] Input switching module: this module receives input voltage from the mains (220V) and UPS (220V), and automatically switches the power input. When the mains is powered on, the mains control circuit starts with a delay, and through the anti-trigger forced locking circuit, it ensures that the UPS power cannot supply power, avoiding conflicts caused by simultaneous power supply; when the mains power is cut off, the system automatically detects that the mains is zero, and immediately switches to UPS power supply to ensure continuous operation of the equipment.

[0059] Main and standby power supply switching module: the main function of this module is to automatically switch to standby power supply when the main power supply is abnormal or the voltage is lower than the set threshold (85% rated voltage). After the main power supply voltage is restored, the circuit automatically switches back to the main power supply to ensure the continuous and stable operation of the equipment. The module has a sensitivity adjustment circuit embedded, which optimizes the switching response time and avoids power failure.

[0060] Fire linkage circuit: this module automatically cuts off the power supply of specified circuits (such as fire door access equipment) and continuously supplies power to other equipment that needs to maintain power supply (such as monitoring equipment and ordinary access control) in the event of a fire emergency by receiving fire signals (such as fire alarm signals). Through the dialer settings, users can flexibly configure the fire linkage mode to ensure smooth evacuation channels in the event of a fire or other emergency.

[0061] Filter circuit and overcurrent protection circuit: used to ensure the smooth output current of the power supply system, prevent electromagnetic interference (EMI), protect the circuit from sudden current, overload and other phenomena, and ensure the long-term safe operation of the equipment.

[0062] Fault alarm circuit: when the system detects a fault in the main and standby power supply, the fault alarm circuit will trigger and output a warning signal to remind users to repair in time, avoiding the equipment being in a dangerous state for a long time.

[0063] Working principle:

[0064] Referring to Figure 2 the input switching module working process

[0065] Mains power supply mode: when the power supply is connected to 220V mains, the input switching module starts with a delay. After the delay, the mains power supply begins. At this time, the UPS voltage input locking device is activated, preventing the UPS power supply from supplying power to ensure that the system does not conflict with the mains power supply and the UPS power supply connected at the same time.

[0066] UPS power supply mode: when the mains power is disconnected or the voltage fluctuates to an unstable range, the input switching module automatically switches to UPS power supply to ensure uninterrupted power supply. At this time, the anti-trigger locking circuit is released, and the UPS delay circuit starts. After the delay, the UPS power supply is officially connected to supply power.

[0067] Referring to Figure 2 the main and backup power supply switching module workflow

[0068] Normal mains power supply: after the power supply device is turned on, the detection circuit continuously detects the mains voltage. When the mains voltage meets the requirements, the switching device remains normally closed, and the power supply normally supplies the rear-end circuit.

[0069] Abnormal mains voltage: when the detection circuit finds that the mains voltage is lower than 85% of the rated value, the switching device starts immediately, and the power supply switches to the backup power supply to ensure continuous power supply of the equipment.

[0070] Restoring mains power supply: when the mains voltage returns to normal, the system automatically switches back to mains power supply to ensure that the equipment is in a stable operating state.

[0071] Referring to Figure 4 the fire linkage circuit workflow

[0072] Normal working mode: under normal circumstances, the power supply equipment supplies power according to the set configuration, including fire access control, ordinary access control, and monitoring equipment, etc.

[0073] Emergency response: when the fire signal input (such as fire alarm) is triggered, the fire linkage function set by the DIP switch automatically disconnects the power supply of the fire access control equipment, ensuring that the fire door can be automatically opened, while maintaining the power supply of the ordinary access control and monitoring equipment, avoiding monitoring failure or access control system failure caused by power disconnection.

[0074] Evacuation and safety guarantee: during the emergency evacuation process, the equipment will be flexibly configured according to actual needs to ensure that the safe escape time is not affected by power interruption.

[0075] Application scenarios and advantages

[0076] Application scenarios: This multifunctional power supply is widely used in various places with high requirements for power stability and reliability, such as industrial automation equipment, monitoring systems, access control systems, and power supply guarantee for key equipment such as fire protection facilities.

[0077] Advantages: The power supply device integrates multiple functions such as main and standby power automatic switching, UPS power protection, fire linkage, overcurrent protection, etc., can realize seamless switching under various conditions such as mains, UPS, fault, etc., and provide continuous and reliable power support for key equipment, and ensure stable and safe operation of the equipment.

[0078] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and according to the above content of the utility model, according to the ordinary technical knowledge and conventional means in the art, other various forms of modification, replacement or change of the above structure of the utility model are made without departing from the above basic technical thought of the utility model, and all should fall within the protection scope of the utility model.

Claims

1. A novel multi-functional power supply, characterized in that, Including: Chassis; Two input terminals, including a 220V AC mains input terminal and a 220V UPS input terminal; Input conversion module, used to switch between AC power and UPS power input; Main power supply and backup power supply; The main / standby power conversion module is used to automatically switch to the standby power supply when the main power supply fails. Fire alarm linkage circuit, which controls the power supply status of different devices through fire alarm signals; Output indicator device to indicate the power supply operating status; Output port, providing power output; Fire alarm linkage input interface and fire alarm linkage DIP switch are used to set and adjust fire alarm linkage function; A filter circuit is used to filter out interference in the power supply signal. Overcurrent protection circuit to prevent overload damage to power supply equipment; The fault alarm circuit is used to detect power failures and output alarm signals.

2. The novel multifunctional power supply according to claim 1, characterized in that: The input switching module includes: The mains power control circuit is used to start and delay when mains power is connected, and to start the main power supply and backup power supply. The anti-trigger forced lockout circuit locks the UPS voltage input during the initial power-on phase, preventing the UPS from supplying power. The UPS voltage input locking device automatically switches to UPS power supply when the mains power fails.

3. The novel multifunctional power supply according to claim 1, characterized in that: The main / standby power switching module includes: The main power supply voltage detection circuit is used to detect in real time whether the main power supply voltage is lower than the rated value; The control circuit and switching device automatically switch to backup power supply when the main power supply voltage is detected to be lower than 85%. The fault alarm circuit is used to issue an alarm signal when both the main and backup power supplies fail.

4. The novel multifunctional power supply according to claim 1, characterized in that: The main / standby power switching module is equipped with a sensitivity adjustment device for adjusting the response sensitivity of the power switching device.

5. The novel multifunctional power supply according to claim 1, characterized in that: Fire alarm linkage circuits include: Fire signal input interface, used to receive signals from the fire protection system; Fire alarm linkage DIP switch, used to set linkage functions in different scenarios; Disconnection device, used to disconnect specific fire access control equipment; The shunt circuit is used to distribute power to different devices according to the fire alarm linkage signal.

6. The novel multifunctional power supply according to any one of claims 1-5, characterized in that: The chassis includes: The panel is equipped with an output indicator, a main / standby power switching test switch, a main / standby power working indicator light, and a main / standby power voltage regulator. The internal circuit boards include the main power supply, backup power supply, main / backup power supply switching circuit board, input dual power supply switching board, and output shunt board. The rear panel includes mains power input and emergency power input sockets, fire alarm linkage interface, alarm output interface, DIP switch and several output terminals.

7. The novel multifunctional power supply according to claim 6, characterized in that: The input conversion module, main / backup power switching module, and fire alarm linkage circuit are all connected via integrated circuits.

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