Communication base station and uninterrupted power supply system thereof

Abstract

The utility model discloses a communication base station and an uninterruptible power supply system thereof, and relates to the technical field of electric power. The uninterruptible power supply system comprises an energy storage converter, an energy storage device, an input switch and a load switch, the input end of the input switch is used for accessing a mains supply, and the output end of the input switch is electrically connected with the power input end of the energy storage converter; the charging and discharging signal end of the energy storage converter is electrically connected with the charging and discharging end of the energy storage device; the input end of the load switch is electrically connected with the power output end of the energy storage converter, and the output end of the load switch is used for outputting a power supply signal of an electricity load; wherein the input switch comprises a first normally-closed contact, and the load switch comprises a second normally-closed contact. According to the technical scheme of the utility model, on the premise that the state of the switch does not need to be switched, rapid switching of the working modes of the uninterrupted power supply system is realized, so that the power supply system can still continuously provide power supply signals for the load when the working modes are switched, and the power supply stability and reliability of the power supply system are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of electric power, especially relates to a communication base station and uninterrupted power supply system thereof. BACKGROUND

[0002] In the operation of the communication base station, the continuous and stable power supply is crucial to guarantee the normal operation of the communication network. Generally, when the power grid supplies power normally, the power supply system can be in the grid-connected working state to supply the power grid power to the communication base station. However, once the power grid fails or is powered off, the power supply system needs to be quickly switched to the off-grid state to provide power for the communication base station by the energy storage device to ensure the continuity of the communication service.

[0003] At present, in the prior art, the switching of the working state of the power supply system is realized by switching the switch state in the power supply system. However, the switching of the switch state may cause temporary power interruption, thereby affecting the stability and reliability of the communication base station. Therefore, at present, it is urgent to solve the technical problem that the switching of the working state of the power supply system of the communication base station in the prior art may cause power interruption. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of communication base station and uninterrupted power supply system, to when power supply system switches working mode, without switching switch state, to realize the continuous uninterrupted power supply to communication base station.

[0005] The utility model provides a kind of uninterrupted power supply system, comprising: energy storage converter, energy storage device, input switch and load switch;

[0006] The input end of the input switch is used to access the mains power supply, and the output end of the input switch is electrically connected with the power input end of the energy storage converter;The charge-discharge signal end of the energy storage converter is electrically connected with the charge-discharge end of the energy storage device.

[0007] The power output end of the energy storage converter is electrically connected with the input end of the load switch, and the output end of the load switch is used to output the power supply signal of the power load.

[0008] Among them, the input switch includes first normally closed contact, and the load switch includes second normally closed contact.

[0009] Optionally, the uninterrupted power supply system further comprises a bypass switch.

[0010] The input end of the bypass switch is electrically connected with the input end of the input switch, and the output end of the bypass switch is electrically connected with the output end of the load switch;Among them, the bypass switch includes first normally open contact.

[0011] Optionally, the uninterruptible power supply system further includes: an emergency stop button;

[0012] The emergency stop button is connected to the first normally open contact, the first normally closed contact and the second normally closed contact respectively.

[0013] Optionally, the uninterruptible power supply system further includes: an energy storage distribution switch;

[0014] The energy storage distribution switch is electrically connected between the input end of the input switch and the commercial power supply.

[0015] Optionally, the uninterruptible power supply system further includes: an energy storage output switch;

[0016] The energy storage output switch is electrically connected between the output end of the load switch and the power supply signal input end of the power load.

[0017] Optionally, the uninterruptible power supply system further includes: a base station power distribution switch;

[0018] The base station power distribution switch is electrically connected between the commercial power supply and the power supply signal input terminal of the power load.

[0019] Optionally, the energy storage device includes an energy storage battery and a battery management module;

[0020] The battery management module is electrically connected to the energy storage battery and the energy storage converter respectively.

[0021] Optionally, the energy storage converter includes a charging signal conversion module, a power signal conversion module and a discharge signal conversion module;

[0022] The input end of the charging signal conversion module is electrically connected to the output end of the input switch, and the output end of the charging signal conversion module is electrically connected to the charging and discharging end of the energy storage device;

[0023] The input end of the power signal conversion module is electrically connected to the output end of the input switch, and the output end of the power signal conversion module is electrically connected to the input end of the load switch;

[0024] The input end of the discharge signal conversion module is electrically connected to the charge and discharge end of the energy storage device, and the output end of the discharge signal conversion module is electrically connected to the input end of the load switch;

[0025] The power signal conversion module and the discharge signal conversion module work in a time-sharing manner.

[0026] Optionally, the uninterruptible power supply system further includes: a first electric energy meter and / or a second electric energy meter;

[0027] The first electric energy meter is arranged between the input end of the input switch and the mains power supply;

[0028] The second electric energy meter is arranged between the output end of the load switch and the electric load.

[0029] A second aspect of the present invention provides a communication base station, comprising: a communication base station body and the uninterruptible power supply system as described above;

[0030] The communication base station body is the power load of the non-stop power supply system.

[0031] The technical solution provided by the utility model is to provide an energy storage converter, an energy storage device, an input switch and a load switch in an uninterruptible power supply system, and connect the input end of the input switch to the mains power supply, the output end of the input switch to the power input end of the energy storage converter, the charge and discharge signal end of the energy storage converter to the charge and discharge end of the energy storage device, and the input end of the load switch to the power output end of the energy storage converter. The load switch and the input switch both include normally closed contacts. When the uninterruptible power supply system is operating normally, the load switch and the input switch are in a closed state, so that the normally supplied mains power is provided to the energy storage converter through the input switch, and after conversion by the energy storage converter, it charges the energy storage device and supplies power to the electrical load, so that the electrical load can operate normally. When the mains power supply is cut off or fails, the energy storage device can be discharged, and the energy storage converter can convert the discharge signal of the energy storage device into a power supply signal for the electrical load, and output it to the electrical load through the load switch, so that the electrical load can still operate normally. The technical solution of the present invention can quickly switch the signal source of the power supply signal provided to the electrical load between the mains power supply and the energy storage device without switching the states of the input switch and the load switch when the mains power supply is normally supplying power or when the power is cut off, thereby realizing continuous and uninterrupted power supply to the electrical load and ensuring the operational stability and reliability of the electrical load. When the electrical load is a communication base station, it can prevent the switching of the signal source of the power supply signal from causing communication interruption, thereby ensuring that the communication base station operates stably and continuously.

[0032] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic structural diagram of an uninterruptible power supply system provided in an embodiment of the present utility model;

[0035] Figure 2 A schematic structural diagram of another uninterruptible power supply system provided by an embodiment of the present utility model;

[0036] Figure 3 A structural diagram of another uninterruptible power supply system provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0037] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Figure 1 A schematic diagram of the structure of an uninterruptible power supply system provided by an embodiment of the present utility model is shown as follows: Figure 1As shown, the uninterruptible power supply system includes: an energy storage converter 1, an energy storage device 2, an input switch 3 and a load switch 4; the input end of the input switch 3 is connected to the mains power supply 01, and the output end of the input switch 3 is electrically connected to the power input end 101 of the energy storage converter 1; the charge and discharge signal end 102 of the energy storage converter 1 is electrically connected to the charge and discharge end 201 of the energy storage device 2; the input end of the load switch 4 is electrically connected to the power output end 103 of the energy storage converter 1, and the output end of the load switch 4 is used to output the power supply signal of the electrical load 5; wherein, the input switch 3 includes a first normally closed contact 301, and the load switch 4 includes a second normally closed contact 401.

[0040] The energy storage converter 1 can be specifically understood as a power conversion device capable of converting at least one of the voltage and current of the signal it receives to meet the power needs of the energy storage device 2 and the electrical load 5 to which it is directly or indirectly electrically connected. The energy storage device 2 can be specifically understood as a device for storing electrical energy, and may include, for example, an energy storage battery or other electrical energy storage mechanism. The electrical load 5 can include any electrical device requiring uninterrupted power supply. In an optional embodiment, the electrical load 5 can include a communication base station.

[0041] In addition, input switch 3 includes a first normally closed contact 301, and load switch 4 includes a second normally closed contact 401. That is, both input switch 3 and load switch 4 include normally closed contacts. Specifically, the normally closed contact can be understood as an electrical switching element. When no external control command is received or the external control command is a non-enable signal, the normally closed contact is in a closed state. When an external control command is received or the external control command becomes an enable signal, the normally closed contact is in an open state. Thus, when no external control command is received or the external control command is a non-enable signal, input switch 3 and load switch 4 remain closed.

[0042] Specifically, when the uninterruptible power supply system is operating normally, the input switch 2 and the load switch 4 will remain in a closed state. At this time, if the mains power supply 01 is supplying power normally, the mains power supply 01 can be transmitted to the power input terminal 101 of the energy storage converter 1 through the input switch 3; after receiving the mains power supply 01, the energy storage converter 1 can convert the mains power supply 01 into a charging signal required by the energy storage device 2, and output the charging signal to the charging and discharging terminal 201 of the energy storage device 2 through the charge and discharge signal terminal 102 of the energy storage converter 1 to charge the energy storage device 2; at the same time, the energy storage converter 1 can also convert the mains power supply 01 into a power supply signal required by the electrical load, and output the power supply signal to the input terminal of the load switch 4 through the power output terminal 103 of the energy storage converter 1, so that the power supply signal can be transmitted to the electrical load 5 through the load switch 4, so that the electrical load 5 can operate normally. In this way, when the mains power supply 01 is supplying power normally, the signal of the mains power supply 01 can be converted by the energy storage converter 1 and provided to the energy storage device 2 and the electrical load 5 respectively, so that the energy storage device 2 can be charged while the electrical load 5 can be supplied with power, thereby ensuring the efficient operation of the uninterruptible power supply system and the continuous power supply to the electrical load 5.

[0043] When the mains power supply 01 fails or is powered off, the input end of the input switch 3 cannot receive the mains power supply 01, and thus cannot provide the mains power supply 01 to the power input end 101 of the energy storage converter 1. The energy storage converter 1 cannot receive the mains power supply 01. At this time, the energy storage device 2 can release the electric energy stored therein to the charge and discharge signal end 102 of the energy storage converter 1 through its charge and discharge end 201. This part of the electric energy can be converted into a power supply signal via the energy storage converter 1, so that the power supply signal can be provided to the input end of the load switch 4 through the power output end 103, and output from the output end of the load switch 4 to the power load 5, so as to power the power load 5, so that the power load 5 can still work normally. In this way, when the mains power supply 01 switches from normal power supply to power off, there is no need to switch the states of the input switch 3 and the load switch 4. It is only necessary to control the energy storage device 2 to release its stored electrical energy to the energy storage converter 1, and the energy storage converter 1 converts the electrical energy and then supplies power to the electrical load 5 through the load switch 4. This ensures that when the mains power supply 01 fails or loses power, it is only necessary to switch the working state of the energy storage converter 1. The power supply to the electrical load 5 can be quickly switched, avoiding temporary power interruptions caused by the need to switch the state of the external switch, thereby achieving continuous and uninterrupted power supply to the power supply system and ensuring that the electrical load 5 can continue to work. Among them, when the electrical load 5 is a communication base station, using this uninterruptible power supply system to power the communication base station can ensure that the communication base station can continue to work and ensure communication stability and reliability.

[0044] The utility model discloses an uninterrupted power supply system, which comprises an uninterrupted power supply system, an energy storage converter, an energy storage device, an input switch and a load switch.

[0045] Optionally, Figure 2 Another structure diagram of the uninterrupted power supply system is provided in the utility model embodiment, as shown in the figure, the uninterrupted power supply system further comprises a bypass switch 6; the input end of the bypass switch 6 is electrically connected with the input end of the input switch 3, and the output end of the bypass switch 6 is electrically connected with the output end of the load switch 4; wherein the bypass switch 6 comprises a first normally open contact 601. Figure 2

[0046] The normally open contact can be specifically understood as an electrical switch element, which is in an open state when no external control instruction is received or the external control instruction is a non-enabled signal, and is in a closed state when the external control instruction is received or the external control instruction becomes an enabled signal. In this way, the bypass switch 6 remains in an open state when no external control instruction is received or the external control instruction is a non-enabled signal.

[0047] ​Specifically, when the uninterruptible power supply system is operating normally, the input switch 2 and the load switch 4 will remain closed, and the bypass switch 6 will remain open. This prevents the closure of the bypass switch 6 from causing a short circuit in the energy storage converter 1, ensuring that the mains power source 01 can be normally transmitted to the energy storage converter 1 via the input switch 3, and that the power supply signal output by the energy storage converter 1 can be output to the power load 5 via the load switch 4, thereby achieving uninterrupted power supply to the power load 5. If at least one of the energy storage converter 1 and the energy storage device 2 requires maintenance or replacement, the energy storage converter 1 does not need to provide a charging signal to the energy storage device 2, and the discharge signal of the energy storage device 2 cannot be converted into a power signal by the energy storage converter 1. In this case, the input switch 3 and the load switch 4 can be opened, and the bypass switch 6 can be closed. After the input switch 3 and the load switch 4 are disconnected, the energy storage converter 1 cannot output a power supply signal to the power load 5, but because the bypass switch 6 is in a closed state, the mains power supply 01 can be transmitted to the power load 5 through the bypass switch 6, so that when the energy storage converter 1 and / or the energy storage device 2 need to be repaired or replaced and stop running, the mains power supply 01 can directly supply power to the power load 5 through the bypass switch 6, avoiding power supply interruption when the energy storage converter 1 and / or the energy storage device 2 are repaired or replaced, and achieving continuous and uninterrupted power supply to the power load 5, thereby improving the stability and reliability of the power load 5, and also providing sufficient time for the repair or replacement of the energy storage converter 1 and / or the energy storage device 2.

[0048] Optional, Figure 3 A structural diagram of another uninterruptible power supply system provided by an embodiment of the present invention is shown as follows: Figure 3 As shown, the uninterruptible power supply system further includes an emergency stop button 7; the emergency stop button 7 is connected to the first normally open contact 601, the first normally closed contact 301 and the second normally closed contact 401 respectively.

[0049] Among them, the emergency stop button 7 can be specifically understood as a mechanical switch for emergency stop. When an emergency occurs, by pressing the emergency stop button 7, the states of the first normally open contact 601, the first normally closed contact 301 and the second normally closed contact 401 can be quickly switched, so that the states of the bypass switch 6, the input switch 3 and the load switch 4 can be switched in time.

[0050] Specifically, when the energy storage converter 1 and / or the energy storage device 2 needs to be repaired or replaced, the maintenance personnel can press the emergency stop button 7 so that the states of the first normally open contact 601, the first normally closed contact 301 and the second normally closed contact 401 can be switched at the same time, that is, by pressing the emergency stop button 7, the first normally open contact 601 can be switched from an open state to a closed state, and the first normally closed contact 301 and the second normally closed contact 401 can both be switched from a closed state to an open state, so that the bypass switch 6 can be closed in time while the input switch 3 and the load switch 4 are disconnected, so that when the energy storage converter 1 stops receiving the mains power supply 01 and stops supplying power to the electrical load 5, the input end of the bypass switch 6 can receive the mains power supply 01 and output the mains power supply 01 to the electrical load 5 through the output end of the bypass switch 6 to supply power to the electrical load 5.

[0051] In this embodiment, an emergency stop button connected to the first normally open contact, the first normally closed contact and the second normally closed contact is provided, so that when the states of the input switch, the load switch and the bypass switch need to be switched, the states of the input switch, the load switch and the bypass switch can be switched simultaneously through the emergency stop button. This is faster than operating multiple independent switches separately and simplifies the operation process. When the energy storage inverter and / or the energy storage device needs to be repaired or replaced and stops running, the power supply mode of the power supply system can be quickly converted from energy storage inverter power supply to bypass power supply through the emergency stop button, thereby achieving continuous and uninterrupted power supply to the electrical load, thereby improving the operating stability and reliability of the electrical load.

[0052] Optional, continue to refer to Figure 3 As shown, the uninterruptible power supply system further includes an energy storage distribution switch 8 ; the energy storage distribution switch 8 is electrically connected between the input end of the input switch 3 and the mains power supply 01 .

[0053] Specifically, when the mains power supply 01 is supplying power normally, the energy storage distribution switch 8 can remain in a closed state, so that the mains power supply 01 can be output to the input end of the input switch 3 through the energy storage distribution switch 8, and the input switch 3 can provide the received mains power supply 01 to the energy storage converter 1. When the mains power supply 01 fails or loses power, the energy storage distribution switch 8 can still remain in a closed state. At this time, the energy storage distribution switch 8 cannot receive the electrical signal of the mains power supply 01, so that the input switch 3 cannot provide the mains power supply 01 to the energy storage converter 1; at this time, the energy storage converter 1 can receive and convert the electrical energy stored in the energy storage device 2, and provide the converted power supply signal to the electrical load 5 through the load switch 4 to supply power to the electrical load 5, thereby ensuring continuous and uninterrupted power supply to the electrical load 5 without switching the switch state in the uninterruptible power supply system.

[0054] Accordingly, when the energy storage converter 1 and / or the energy storage device 2 needs to be repaired or replaced, the energy storage distribution switch 8 can remain in a closed state so that the electrical signal of the mains power supply 01 can be transmitted to the input end of the bypass switch 6 through the energy storage distribution switch 8, and the bypass switch 6 transmits the electrical signal of the mains power supply 01 to the power load 5 through its output end, so that when the energy storage converter 1 and / or the energy storage device 2 needs to be repaired or replaced, the power supply mode of the uninterruptible power supply system can be converted to bypass power supply, thereby achieving continuous and uninterrupted power supply to the power load 5, thereby improving the operating stability and reliability of the power load 5.

[0055] In addition, when the mains power supply 01 is not needed or the mains power supply 01 is in peak power period, the switching of the power supply can be controlled by controlling the state of the energy storage distribution switch 8. For example, when the mains power supply 01 is in the off-peak period and the unit price of the electricity of the mains power supply 01 is low, the energy storage distribution switch 8 can be controlled to be in a closed state, so that the electrical signal of the mains power supply 01 can be provided to the energy storage converter 1, and after conversion by the energy storage converter 1, it can be stored in the energy storage device 2, and provided to the power load 5 to supply power to the power load 5; on the contrary, when the mains power supply 01 is in the peak period and the unit price of the electricity of the mains power supply 01 is high, the energy storage distribution switch 8 can be controlled to be in an open state. At this time, the electrical signal of the mains power supply 01 cannot be transmitted to the energy storage converter 1 through the energy storage distribution switch 8, so that the energy storage converter 1 can use the electricity stored in the energy storage device 2 to supply power to the power load 5 when the mains power supply 01 is in the peak period. While ensuring continuous and uninterrupted power supply to the power load 5, the electricity cost of the power load 5 is reduced and the energy utilization efficiency is improved.

[0056] Optional, continue to refer to Figure 3 As shown, the uninterruptible power supply system further includes an energy storage output switch 9 ; the energy storage output switch 9 is electrically connected between the output end of the load switch 4 and the power supply signal input end 501 of the power load 5 .

[0057] It is understandable that when power needs to be supplied to the electrical load 5, the energy storage output switch 9 can remain in a closed state, so that the power supply signal output by the energy storage converter 1 can be provided to the electrical load 5 through the load switch 4 and the energy storage output switch 9, or the electrical signal of the mains power supply 01 can be directly provided to the electrical load 5 through the bypass switch 6 and the energy storage output switch 9 to supply power to the electrical load 5. When it is necessary to stop supplying power to the electrical load 5, for example, when the electrical load 5 needs maintenance, the energy storage output switch 9 can be controlled to be in an open state, so that the electrical signal of the mains power supply 01 or the power supply signal output by the energy storage device 2 cannot be transmitted to the electrical load 5, and the electrical load 5 no longer operates, which facilitates the maintenance of the electrical load 5.

[0058] Optional, continue to refer to Figure 3 As shown, the uninterruptible power supply system further includes a base station power distribution switch 10 ; the base station power distribution switch 10 is electrically connected between the commercial power source 01 and the power supply signal input terminal 501 of the power load 5 .

[0059] Specifically, when the uninterruptible power supply system is operating normally, the base station power distribution switch 10 can remain in the disconnected state, and the power load 5 will obtain the required power supply signal through the bypass switch 6 or the energy storage converter 1. When the uninterruptible power supply system needs to be dismantled or the switches (3, 4, 6, 8, 9), the energy storage device 2, and the energy storage converter 1 in the uninterruptible power supply system need to be repaired or replaced as a whole, the base station power distribution switch 10 can be controlled to switch from the disconnected state to the closed state; at this time, the electrical signal of the mains power supply 01 can be directly provided to the power supply signal input terminal 501 of the power load 5 through the base station power distribution switch 10, so that the mains power supply 01 can directly supply power to the power load 5, ensuring continuous and uninterrupted power supply to the power load 5. In this way, by controlling the state of the base station power distribution switch, it is ensured that the power load 5 can still provide stable power support during the maintenance of the power supply system, ensuring the continuity and stability of the operation of the power load 5.

[0060] Optional, continue Figure 3 As shown, the energy storage device 2 includes an energy storage battery 202 and a battery management module 203 ; the battery management module 203 is electrically connected to the energy storage battery 202 and the energy storage converter 1 respectively.

[0061] The battery management module 203 may be specifically understood as an intelligent control module for managing and controlling the charge and discharge status of the energy storage battery 202 .

[0062] Specifically, when the mains power supply 01 is operating normally or is in a valley power period, the energy storage converter 1 receives electrical signals from the mains power supply 01 and provides corresponding control signals to the battery management module 203, enabling the battery management module 203 to control the charging of the energy storage battery 202. Meanwhile, when the energy storage battery 202 does not need to be charged, for example, when the power level of the energy storage battery 202 is 100%, the battery management module 203 can feedback a corresponding signal to the energy storage converter 1, enabling the energy storage converter 1 to stop providing charging signals to the energy storage battery 202. When the mains power supply 01 is disconnected or is in a peak power period, the energy storage converter 1 can provide a corresponding signal to the battery management module 203, enabling the battery management module 203 to control the discharge of the energy storage battery 202, enabling the energy storage converter 1 to receive and convert the electrical energy released by the energy storage battery 202 and provide it to the electrical load 5, thereby providing power to the electrical load 5 and achieving continuous and uninterrupted power supply to the electrical load 5.

[0063] Optional, continue to refer to Figure 3As shown, the energy storage converter 1 may include a charging signal conversion module 02, a power signal conversion module 03 and a discharge signal conversion module 04; the input end 021 of the charging signal conversion module 02 is electrically connected to the output end of the input switch 3, and the output end 022 of the charging signal conversion module 02 is electrically connected to the charge and discharge end 201 of the energy storage device 2; the input end 031 of the power signal conversion module 03 is electrically connected to the output end of the input switch 3, and the output end 032 of the power signal conversion module 03 is electrically connected to the input end of the load switch 4; the input end 041 of the discharge signal conversion module 04 is electrically connected to the charge and discharge end 21 of the energy storage device 2, and the output end 042 of the discharge signal conversion module 04 is electrically connected to the input end of the load switch 4; wherein the power signal conversion module 03 and the discharge signal conversion module 04 work in a time-sharing manner.

[0064] Among them, the charging signal module 02 can be used to convert the mains power supply 01 into a charging signal for the energy storage device 2 when receiving the mains power supply 01 at the power input end of the energy storage converter 1, so as to charge the energy storage device 2; the power signal conversion module 03 can be used to directly use the mains power supply 01 as a power supply signal or convert it into a power supply signal after signal conversion when receiving the mains power supply 01 at the power input end of the energy storage converter 1, and transmit the power supply signal to the input end of the load switch 4, so as to transmit it to the power load 5 through the load switch 4, so that the electrical signal of the mains power supply 01 can serve as the power supply for the power load 5. The discharge signal conversion module 04 can be used to receive the discharge signal of the energy storage device 2 and convert the discharge signal of the energy storage device into the power supply signal required by the power load 5. The power supply signal is transmitted to the power load 5 through the load switch 4, so that the power load 5 can be powered by the electrical energy stored in the energy storage device 2. In this way, by setting a charging signal conversion module, a power signal conversion module and a discharge signal conversion module in the energy storage converter 1, the three modules work together to enable the energy storage device 2 to charge and discharge, and the electrical load 5 to receive the power supply signal and operate normally, thereby ensuring the operating stability and reliability of the electrical load 5.

[0065] In addition, the power signal conversion module 03 and the discharge signal conversion module 04 work in a time-sharing manner, that is, when the mains power supply 01 is operating normally, the power signal conversion module 03 operates normally, so that the electrical signal of the mains power supply 01 can be used to provide the required power to the electrical load 5, and at this time the discharge signal conversion module 04 is in a non-operating state; when the mains power supply 01 fails or loses power, the discharge signal conversion module 04 operates normally, so that the electrical energy stored in the energy storage device 2 can be used to supply power to the electrical load 5, and at this time the power signal conversion module 03 is in a non-operating state. This time-sharing working mechanism enables the power supply system to flexibly adjust the signal conversion method according to different situations, ensuring that the power supply system can continue to provide a stable power supply to the electrical load whether the mains power supply is normal or abnormal, thereby improving energy utilization efficiency and the operational stability of the electrical load.

[0066] Optional, continue to refer to Figure 3 As shown, the uninterruptible power supply system also includes: a first power meter 303 and / or a second power meter 403; the first power meter 303 is arranged between the input end of the input switch 3 and the mains power supply 01; the second power meter 403 is arranged between the output end of the load switch 4 and the power load 5.

[0067] Specifically, the first energy meter 303 is disposed between the input terminal of the input switch 3 and the mains power supply 01, and is used to monitor the amount of energy input from the mains power supply 01 to the energy storage converter 1, thereby reflecting the power supply status of the mains power supply 01 in the power supply system. The second energy meter 403 is disposed between the output terminal of the load switch 4 and the power load 5, and is used to monitor the amount of energy provided by the energy storage converter 1 to the power load 5, thereby reflecting the actual power supply status in the power supply system.

[0068] It is also understood that the first and second energy meters 303 and 403 function not only to monitor the power consumption of the mains power source 01 and the energy storage converter 1, but also to monitor the power consumption of the energy storage device 2 and the power consumption of the electrical load 5, helping the power supply system to understand energy consumption and distribution in real time. Monitoring by the energy meters can help the power supply system promptly detect energy waste or abnormal conditions, thereby improving the stability and reliability of the power supply system, ensuring continuous and stable power supply to the communication base station, and enhancing the performance and economic benefits of the power supply system.

[0069] Based on the same utility model concept, an embodiment of the utility model also provides a communication base station, including a communication base station body and an uninterruptible power supply system of the above embodiment. The communication base station body is the power load of the uninterruptible power supply system, so that the uninterruptible power supply system can supply power to the communication base station body.

[0070] Therefore, the communication base station provided in this embodiment has the structure and operation of the uninterruptible power supply system of the above embodiment, and can achieve the effect of the uninterruptible power supply system of the above embodiment. The similarities can be referred to the above description and will not be repeated here.

[0071] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this utility model can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution disclosed in this utility model can be achieved. This is not limited herein.

[0072] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. An uninterruptible power supply system, characterized in that: include: Energy storage converter, energy storage device, input switch and load switch; The input end of the input switch is used to connect to the mains power supply, and the output end of the input switch is electrically connected to the power input end of the energy storage converter; the charge and discharge signal end of the energy storage converter is electrically connected to the charge and discharge end of the energy storage device; The input end of the load switch is electrically connected to the power output end of the energy storage converter, and the output end of the load switch is used to output a power supply signal for the power load; The input switch includes a first normally closed contact, and the load switch includes a second normally closed contact.

2. The uninterruptible power supply system according to claim 1, characterized in that: Also includes: Bypass switch; The input end of the bypass switch is electrically connected to the input end of the input switch, and the output end of the bypass switch is electrically connected to the output end of the load switch; wherein the bypass switch includes a first normally open contact.

3. The uninterruptible power supply system according to claim 2, characterized in that: Also includes: Emergency stop button; The emergency stop button is connected to the first normally open contact, the first normally closed contact and the second normally closed contact respectively.

4. The uninterruptible power supply system according to claim 1, characterized in that: Also includes: Energy storage distribution switch; The energy storage distribution switch is electrically connected between the input end of the input switch and the commercial power supply.

5. The uninterruptible power supply system according to claim 1, characterized in that: Also includes: Energy storage output switch; The energy storage output switch is electrically connected between the output end of the load switch and the power supply signal input end of the power load.

6. The uninterruptible power supply system according to claim 1, characterized in that: Also includes: Base station power distribution switch; The base station power distribution switch is electrically connected between the commercial power supply and the power supply signal input terminal of the power load.

7. The uninterruptible power supply system according to claim 1, characterized in that: The energy storage device includes an energy storage battery and a battery management module; The battery management module is electrically connected to the energy storage battery and the energy storage converter respectively.

8. The uninterruptible power supply system according to claim 1, characterized in that: The energy storage converter includes a charging signal conversion module, a power signal conversion module and a discharge signal conversion module; The input end of the charging signal conversion module is electrically connected to the output end of the input switch, and the output end of the charging signal conversion module is electrically connected to the charging and discharging end of the energy storage device; The input end of the power signal conversion module is electrically connected to the output end of the input switch, and the output end of the power signal conversion module is electrically connected to the input end of the load switch; The input end of the discharge signal conversion module is electrically connected to the charge and discharge end of the energy storage device, and the output end of the discharge signal conversion module is electrically connected to the input end of the load switch; The power signal conversion module and the discharge signal conversion module work in a time-sharing manner.

9. The uninterruptible power supply system according to claim 1, characterized in that: Also includes: a first electric energy meter and / or a second electric energy meter; The first electric energy meter is arranged between the input end of the input switch and the mains power supply; The second electric energy meter is arranged between the output end of the load switch and the electric load.

10. A communication base station, characterized in that: include: A communication base station body and an uninterruptible power supply system according to any one of claims 1 to 9; The communication base station body is the power load of the non-stop power supply system.

Images