Emergency lighting centralized power supply with N+1 redundant switching power supply module

Abstract

The utility model discloses an emergency lighting centralized power supply with N + 1 redundant switching power supply modules, which comprises a cabinet body, and a switching power supply module, an LCD (Liquid Crystal Display) display module, a loop module used for communicating with a fire-fighting emergency lamp, and a control and communication module used for communicating with an emergency lighting controller which are arranged in the cabinet body, the control and communication module is respectively connected with the switching power supply modules, the LCD display module and the loop module, the switching power supply modules are connected with the storage battery and the loop module, the plurality of switching power supply modules are connected in parallel to supply power to a matched product and the storage battery, and the storage battery is connected with the LCD display module. And the plurality of switching power supply modules uniformly distribute equipment loads through the current sharing module. According to the utility model, when one of the switching power supply modules breaks down, the output current of the remaining switching power supply modules is redistributed through the current sharing module, so that the normal power supply of the storage battery pack and the loop control unit is ensured, and the over-discharge risk of the storage battery can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to an emergency lighting centralized power supply, especially an emergency lighting centralized power supply with N+1 redundant switching power supply module. BACKGROUND

[0002] The emergency lighting centralized power supply is an important link in the centralized control type fire emergency lighting and evacuation indicating system, which connects the emergency lighting controller and the fire emergency lamps, mainly supplies power for the fire emergency lamps, monitors the module function state of the equipment itself and guarantees the normal operation of the system.

[0003] The switching power supply module of the emergency lighting centralized power supply usually needs to supply power for the battery pack and the entire matching module at the same time, and only one switching power supply module exists, so the following defects exist: when the switching power supply module fails, the battery pack supplies power, but the battery discharge time is limited, and the battery pack cannot be charged in time, and the battery has over-discharge risk. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an emergency lighting centralized power supply with N+1 redundant switching power supply module, which has simple structure, low cost, can guarantee normal power consumption of the matching product and the battery, and avoids over-discharge risk of the battery.

[0005] The utility model realizes the purpose through the following technical measures: an emergency lighting centralized power supply with N+1 redundant switching power supply module, which comprises a cabinet body and a switching power supply module, an LCD display module, a loop module for communication with fire emergency lamps and a control and communication module for communication with an emergency lighting controller, which are installed in the cabinet body, the control and communication module is connected with the switching power supply module, the LCD display module and the loop module respectively, the switching power supply module is connected with the battery and the loop module, characterized in that the switching power supply module is multiple, multiple switching power supply modules are connected in parallel to output power for the matching product and the battery, and the multiple switching power supply modules are evenly distributed by a current sharing module.

[0006] When one of the switching power supply modules fails, the utility model reallocates the output current of the remaining switching power supply modules through the current sharing module, guarantees the normal power supply of the battery pack and the loop control unit, and can avoid over-discharge risk of the battery.

[0007] The switching power supply module is full-load capacity configuration, and the multiple switching power supply modules adopt main switching power supply modules and auxiliary switching power supply modules as spare parts.

[0008] The utility model discloses a switching power module adopts the hot plug form. Single switching power failure can not influence the normal operation of system, when replacing the failure switching power, can be under the equipment uninterrupted power supply state, directly hot plug replacement failure switching power, reduce the after-sales maintenance time, promote the overall stability of system.

[0009] The utility model discloses the bottom of the cabinet is equipped with the inlet and outlet line hole of going in and going out.

[0010] The utility model discloses each switching power module is equipped with miniature circuit breaker protection.

[0011] The utility model discloses control and communication module adopt the wire harness connection with butt terminal respectively with switching power module, LCD display module, loop module to reduce wiring steps.

[0012] The utility model discloses loop module is composed of 8 loop cards and power supply communication chip, and each loop is equipped with miniature circuit breaker protection.

[0013] The utility model discloses LCD display module is installed on the inner door of cabinet, and LCD display module is composed of LCD display screen, LED pilot lamp and button.

[0014] The utility model discloses each switching power module is the same model, and can replace each other.

[0015] Compared with the prior art, the utility model has the following remarkable effects:

[0016] (1) under the normal state of equipment, the utility model provides electricity by the parallel output of multiple switching power modules, guarantees the normal electricity of matching product and battery, when the failure of certain switching power module occurs, redistributes the output current of remaining switching power through current sharing module, guarantees the normal power supply of battery pack and loop control unit, and the over-discharge risk of battery can be avoided.

[0017] (2) the switching power module of the utility model adopts the hot plug form, directly replaces the failure switching power on the basis of equipment uninterrupted power supply, reduces the after-sales maintenance time, and improves the overall stability of system.

[0018] (3) control and communication module of the utility model adopt the wire harness connection with butt terminal respectively with switching power module, LCD display module, loop module to reduce wiring steps.

[0019] (4) the utility model has simple structure, low cost, strong practicality, and is suitable for extensive promotion and use. DRAWINGS

[0020] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0021] Figure 1 is one of the structural schematic view of the utility model;

[0022] Figure 2 is the second structural schematic view of the utility model;

[0023] Figure 3 is a system wiring diagram of the utility model.

[0024] In the figure: 1-cabinet; 2-switching power supply module; 3-LCD display module; 4-loop module; 5-control and communication module; 6-battery cabinet; 7-control cabinet; 8-battery. DETAILED DESCRIPTION

[0025] As Figure 1 , Figure 2 shown, is an emergency lighting centralized power supply with N+1 redundant switching power supply module of the utility model, including cabinet 1 and install in the switching power supply module 2 of cabinet 1, LCD display module 3, for and fire emergency lamps communication loop module 4, for and emergency lighting controller communication control and communication module 5, control and communication module 5 respectively with switching power supply module 2, LCD display module 3, loop module 4 use the wiring harness connection with butt terminal, switching power supply module 2 connects battery 8 and loop module 4, wherein, switching power supply module 2 is multiple, each switching power supply module 2 is equipped with miniature circuit breaker protection, multiple switching power supply module 2 parallel output is connected product and battery provides power, and multiple switching power supply module 2 is evenly distributed by current module equipment load.

[0026] The switching power supply module 2, the LCD display module 3, the loop module 4, the control and communication module 5 and the current module of the utility model are all existing products.

[0027] Switching power supply module 2 adopts hot plug form.

[0028] The utility model has a pluggable switching power supply redundancy design scheme, the main and vice switching power supply module are spare parts for each other, the main switching power supply module and vice switching power supply module are evenly distributed by current module equipment load, each switching power supply module is full load capacity configuration, single switching power supply failure will not affect the normal operation of the system, when replacing the fault switching power supply, can be in the equipment uninterrupted power supply state, directly hot plug replacement fault switching power supply, reduce after-sales maintenance time, improve the overall stability of the system.

[0029] The LCD display module 3 is installed on the inner door of the cabinet 1, and the LCD display module 3 is composed of an LCD display screen, an LED indicator light and a key.

[0030] The bottom of the cabinet 1 is provided with an inlet and outlet hole for inlet and outlet lines.

[0031] AsFigure 3 As shown, cabinet 1 includes a battery cabinet 6 housing a storage battery 8 and a control cabinet 7 housing a switching power supply module 2 and a circuit module 4. The circuit module 4 consists of 8 circuit cards and a power supply and communication chip, enabling simultaneous full-load output of 6A current from 8 channels to provide power for connected products. Each circuit is equipped with a miniature circuit breaker for protection. There are three switching power supply modules 2 connected in parallel, and they are connected to the storage battery 8 and the circuit module 4.

[0032] This product is an emergency lighting centralized power supply with AC220V input and DC36V output. It has a total of 8 output circuits, each of which can output 6A. All 8 circuits can operate at full load at the same time. The circuit board of each circuit meets the requirements of DC36V and 6A full load operation.

[0033] 1. The switching power supply modules adopt N+1 parallel output, and the switching power supply modules serve as hot backups for each other. The failure of any one switching power supply module will not affect the operation of the whole machine. All switching power supply modules are of the same model and can be replaced with each other.

[0034] 2. The battery output is controlled by a DC miniature circuit breaker.

[0035] 3. Each circuit output uses a DC miniature circuit breaker to control the positive terminal of the circuit module output.

[0036] 4. The battery consists of three 12V lead-acid batteries connected in series to output 36V.

[0037] The embodiments of this utility model are not limited thereto. Based on the above content of this utility model, and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, this utility model can also be modified, replaced or changed in various other forms, all of which fall within the scope of protection of this utility model.

Claims

1. An emergency lighting centralized power supply with N+1 redundant switching power supply modules, comprising a cabinet body and a switching power supply module, an LCD display module, a loop module for communication with fire emergency lamps, a control and communication module for communication with an emergency lighting controller, which are installed in the cabinet body, the control and communication module is connected with the switching power supply module, the LCD display module and the loop module respectively, and the switching power supply module is connected with a storage battery and the loop module, characterized in that: The switch power supply modules are multiple, multiple switch power supply modules are connected in parallel to output power for matching products and storage batteries, and the multiple switch power supply modules are evenly distributed by a current sharing module.

2. The emergency lighting central power supply with N+1 redundant switching power supply modules according to claim 1, characterized in that: The switch power supply modules are full-load capacity configurations, and the multiple switch power supply modules adopt main switch power supply modules and vice switch power supply modules as spare parts.

3. The emergency lighting central power supply with N+1 redundant switching power supply modules according to claim 2, characterized in that: The switch power supply modules adopt a hot-pluggable form.

4. The emergency lighting central power supply with N+1 redundant switching power supply modules of claim 3, wherein: Each switch power supply module is of the same model.

5. The emergency lighting central power supply with N+1 redundant switching power supply modules of claim 4, wherein: A lower inlet and outlet hole is arranged at the bottom of the cabinet.

6. The emergency lighting central power supply with N+1 redundant switching power supply modules of claim 5, wherein: Each switch power supply module is equipped with a miniature circuit breaker.

7. The emergency lighting central power supply with N+1 redundant switching power supply modules according to claim 6, characterized in that: The control and communication module is connected with the switch power supply module, the LCD display module and the loop module by a wire harness with butt terminals.

8. The emergency lighting central power supply with N+1 redundant switching power supply modules of claim 7, wherein: The loop module is composed of eight loop cards and a power supply communication chip, and each loop is equipped with a miniature circuit breaker.

9. The emergency lighting central power supply with N+1 redundant switching power supply modules of claim 8, wherein: The LCD display module is installed on the inner door of the cabinet, and the LCD display module is composed of an LCD display screen, an LED indicator and a key.

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