High-power remote energy-saving numerical control module

Abstract

The utility model discloses a high-power remote energy-saving numerical control module, which is provided with a wireless communication module to realize remote control, is more convenient to operate, improves power factors, reduces harmonic pollution, and reduces loss and energy waste of a power supply system, thereby improving the efficiency of the whole alternating current-direct current power supply module. And the switching frequency can be controlled to keep the output voltage constant, so as to adapt to possible voltage fluctuation in the AC-to-DC power supply module.

Description

Technical Field

[0001] The utility model relates to the technical field of power modules, and particularly relates to a high-power remote energy-saving numerical control module. Background Art

[0002] With the large-scale construction of 5G, the number of devices of various models and systems in the base station increases, and the power consumption gradually increases. However, the existing devices are not refined, convenient, remote, and intelligent enough in energy distribution management, resulting in chaos in the use of equipment power and equipment power-on in the base station at present. It is in a state of disorderly management and requires professional personnel to manually debug and control the electrical equipment on site, which is rather troublesome. Therefore, this application designs a smart energy-saving numerical control module that can be wirelessly remotely controlled. Content of the Utility Model

[0003] The utility model provides a high-power remote energy-saving numerical control module, which can at least solve one problem pointed out in the background art.

[0004] A high-power remote energy-saving numerical control module includes an AC input terminal, a rectifier and filter module, a PFC module, an LLC module, a control module, and a wireless communication module;

[0005] The rectifier and filter module rectifies and filters the alternating current input from the AC output terminal into stable direct current, inputs the stable direct current into the PFC module, the PFC module boosts the stable direct current into high-voltage direct current, inputs the high-voltage direct current into the LLC module, and the LLC module converts the high-voltage direct current into the required DC voltage and supplies it to the load;

[0006] The control module is electrically connected to the rectifier and filter module, the PFC module, the LLC module, and the wireless communication module, and receives the instructions sent by the wireless communication module to perform current conversion control.

[0007] The filter module includes an X capacitor, a Y capacitor, and a common mode inductor.

[0008] The AC input terminal is connected with a varistor and a fuse.

[0009] The controller of the PFC module adopts ICE2PCS01G.

[0010] The controller of the LLC module adopts MCZ5211ST.

[0011] The synchronous rectification circuit of the LLC module adopts MP6924A.

[0012] Preferably, it further includes a flyback module, and the flyback module is connected to the PFC module and is used to convert the high-voltage direct current into low-voltage direct current to supply power to the control module.

[0013] The controller of the flyback module adopts EG1125.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is provided with a wireless communication module to achieve remote control, which is more convenient to operate. In addition, it improves the power factor, reduces harmonic pollution, reduces the loss and energy waste of the power supply system, thereby improving the efficiency of the entire AC-DC power module. It can also control the switching frequency to keep the output voltage constant and adapt to possible voltage fluctuations in the AC-DC power module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the principle block diagram of the present utility model.

[0016] Description of the reference numerals: 1 - AC input terminal, 2 - rectifier filter module, 3 - PFC module, 4 - LLC module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will describe in detail a specific embodiment of the present utility model with reference to the drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiment.

[0018] As Figure 1 shown, a high-power remote energy-saving numerical control module provided by an embodiment of the present utility model includes an AC input terminal 1, a rectifier filter module 2, a PFC module 3, an LLC module 4, a control module, and a wireless communication module;

[0019] The wireless communication module can adopt a 4G / 5G cellular communication module, a wifi module, a Bluetooth module, a LoRa module, and a ZigBee module;

[0020] The rectifier unit of the rectifier filter module rectifies the alternating current input from the AC output terminal into pulsating direct current, inputs the pulsating direct current into the filter unit, the filter unit filters the pulsating direct current into stable direct current, inputs the stable direct current into the PFC module, the PFC module boosts the stable direct current into high-voltage direct current, inputs the high-voltage direct current into the LLC module, and the LLC module converts the high-voltage direct current into the required DC voltage and supplies it to the load;

[0021] The control module is electrically connected to the rectifier filter module, the PFC module, the LLC module, and the wireless communication module, and receives the instructions sent by the wireless communication module to perform current conversion control;

[0022] Power is taken from the AC input terminal, and it is filtered through an X capacitor, a Y capacitor, and a common mode inductor (filter module) to meet the power supply EMI requirements; The fuse and the varistor play overvoltage and current limiting protection roles, and at the same time, the lightning arrester meets certain lightning protection requirements;

[0023] The mains power is filtered to obtain approximately 310V DC, and then enters the PFC module; the PFC module consists of a control chip ICE2PCS01G, a totem pole drive circuit, and a BOOST boost circuit. This chip adopts the CCM control mode and can stably achieve a power factor ≥ 0.99 (50%LOAD - 100%LOAD); it converts 310V DC into stable 400V high-voltage DC.

[0024] Considering that the output power is relatively large (1KW) and the circuit requires high efficiency; the circuit topology selects a resonant half-bridge circuit (LLC module) with MCZ5211ST as the control IC to achieve the conversion of AC-DC-DC (high frequency). MCZ5211ST has stable performance, a built-in soft start function, and strong chip driving ability, eliminating the need to add an additional totem pole drive circuit.

[0025] The LLC module consists of an LLC control chip MCZ5211ST, its peripheral circuits, and a resonant circuit.

[0026] The output large capacitor of the PFC module supplies power to the chip through the startup circuit with a part of the 400V high-voltage DC, and another part flows into the MOS, resonant inductor, transformer, and resonant capacitor for resonance.

[0027] Due to the excessive output current of the power supply (18A), ordinary Schottky diode rectification will greatly increase the power consumption of the power supply, which is too demanding for the efficiency requirement and natural heat dissipation of the power supply. Therefore, an MP6924A synchronous rectification circuit is selected as the control chip; this synchronous rectification can improve the power supply efficiency to 95% and meet the requirements of natural heat dissipation of the power supply; the 400V high-voltage DC is converted into stable 53.5V through this for the output of the subsequent load.

[0028] In addition, through the EG1125 chip, a flyback scheme (flyback module) is used to convert the power supply from 400V high-voltage DC to 16V low-voltage DC; to supply power to the control chip (control module) and the totem pole drive circuit of the power supply; this power supply has two indicator lights. When the power supply works normally, indicator light 1 (green) is always on and indicator light 2 (red) is off. When a fault occurs in the power supply (input over-voltage / under-voltage, output short circuit, output over-current, output over-voltage), indicator light 2 (red) is always on and indicator light 1 (green) is off.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit and basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-power remote energy-saving numerical control module, characterized in that: It includes an AC input terminal, a rectifier and filter module, a PFC module, an LLC module, a control module and a wireless communication module; The rectifier and filter module rectifies and filters the AC power input from the AC power output end into stable DC power, and inputs the stable DC power into the PFC module. The PFC module boosts the stable DC power into high-voltage DC power, and inputs the high-voltage DC power into the LLC module. The LLC module converts the high-voltage DC power into the required DC voltage and provides it to the load. The control module is electrically connected to the rectification and filtering module, the PFC module, the LLC module and the wireless communication module, and receives instructions sent by the wireless communication module to perform current conversion control.

2. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The filtering module includes an X capacitor, a Y capacitor and a common mode inductor.

3. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The AC power input terminal is connected with a varistor and a fuse.

4. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The controller of the PFC module adopts ICE2PCS01G.

5. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The controller of the LLC module adopts MCZ5211ST.

6. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The synchronous rectification circuit of the LLC module adopts MP6924A.

7. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: It also includes a flyback module, which is connected to the PFC module and is used to convert high-voltage direct current into low-voltage direct current to supply power to the control module.

8. The high-power remote energy-saving numerical control module according to claim 1, characterized in that: The controller of the flyback module adopts EG1125.

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