Uninterrupted power supply (UPS) for power distribution terminal

Abstract

The utility model relates to a UPS (Uninterrupted Power Supply) for a power distribution terminal. The UPS comprises a direct current power supply mechanism, a charging device and an alarm device, the charging device comprises an expansion battery pack and a wiring terminal; the alarm device comprises a power failure monitoring module, a battery pack monitoring module and a wireless communication module; the direct-current power supply mechanism comprises a main circuit and a bypass which are arranged in parallel, the main circuit is provided with a rectifying and voltage-stabilizing circuit integrated module, the bypass is provided with a power-down power supply assembly, and the power-down power supply assembly comprises a bypass rectifier, a charger and a standby battery pack which are connected in series. According to the power supply, power failure monitoring and storage battery state monitoring are set in corresponding areas of a main circuit, unified management is carried out through a wireless network, meanwhile, power supplementation is carried out in a three-circuit series connection mode, and cyclic battery expansion can be carried out under the condition of no power failure according to needs; therefore, comprehensive monitoring of the power supply condition of the power distribution terminal and continuous power supply of the functional circuit module are realized.

Description

Technical Field

[0001] The utility model relates to the field of power distribution technology and equipment, and in particular to a UPS uninterruptible power supply for a power distribution terminal. Background Art

[0002] The distribution terminal is a general term for various remote monitoring and control units installed in the distribution network. When the distribution network is operating normally, the AC power input to the distribution terminal is generally converted into DC power to power the various circuit modules in the distribution terminal. When the distribution network fails and cannot provide AC power, the distribution terminal usually uses a DC power supply mechanism to take over the power supply task. The UPS uninterruptible power supply can be used as a DC power supply mechanism to connect the battery to the distribution terminal, and provide stable power supply to the terminal functional modules when the distribution network cannot provide AC power, so as to keep the power supply of this part uninterrupted. Most of the existing UPS power supplies used as DC power supply mechanisms in the distribution terminal are connected in parallel with the main bypass, and an alarm is set upstream of the branch to monitor the power failure of the city power supply. However, it is difficult to monitor the power failure and the power supply of the UPS main power battery on the main control computer through the local area network. In addition, the storage capacity of the UPS point battery group is limited and is only used for emergency purposes. In the case of a long-term power failure, the continuous operation of the distribution terminal cannot be guaranteed. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the defects of incomplete power supply monitoring and insufficient continuous power supply capacity of the UPS power supply of the existing distribution terminal as a DC power supply mechanism, and to provide a UPS uninterruptible power supply for the distribution terminal, which is equipped with power failure monitoring and battery status monitoring in the corresponding areas of the main and side lines, and is uniformly managed through a wireless network. At the same time, power is supplemented in the form of three series connection, and the circulating battery can be expanded without power failure as needed, so as to realize comprehensive monitoring of the power supply situation of the distribution terminal and continuous power supply of the functional circuit module.

[0004] The UPS uninterruptible power supply for the power distribution terminal includes a DC power supply mechanism, a power replenishment device and an alarm device; wherein the power replenishment device includes an extended battery pack and wiring terminals, and the alarm device includes a power failure monitoring module, a battery pack monitoring module and a wireless communication module; the DC power supply mechanism includes a main circuit and a bypass circuit arranged in parallel, the main circuit is provided with a rectifier and voltage stabilization circuit integrated module, the bypass circuit is provided with a power failure power supply component, and the power failure power supply component includes a bypass rectifier, a charger and a backup battery pack connected in series; the extended battery pack is divided into three groups and connected in series, and a pair of wiring terminals are connected to the corresponding terminals, and the wiring terminals of the three groups of extended battery packs in series are connected to the charger through a selection switch; the power failure monitoring module is arranged at the downstream end of the rectifier and voltage stabilization circuit integrated module and between the bypass rectifier and the backup battery pack, and the battery pack monitoring module is arranged at the downstream end of the backup battery pack.

[0005] Furthermore, the selection switch between the wiring terminal and the charger adopts a 3P two-way DIP switch.

[0006] Furthermore, the wireless communication module communicates with the power failure monitoring module and the battery pack monitoring module via a universal asynchronous receiver / transmitter or a universal serial bus.

[0007] Furthermore, the wireless communication module adopts a SIM9 wireless communication module.

[0008] The utility model discloses a UPS uninterruptible power supply for a power distribution terminal, which overcomes the defects of incomplete power supply monitoring and insufficient continuous power supply capacity of the existing UPS power supply used as a DC power supply mechanism in the power distribution terminal. Power failure monitoring and battery status monitoring are arranged in the corresponding area of ​​the main road, and are uniformly managed through a wireless network. At the same time, power is supplemented in the form of three-way series connection, and circulating battery expansion can be performed without power failure as needed, so as to realize comprehensive monitoring of the power supply situation of the power distribution terminal and continuous power supply of the functional circuit module. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following is a further description of a UPS uninterruptible power supply for a power distribution terminal of the utility model in conjunction with the accompanying drawings:

[0010] Figure 1 This is a wireframe diagram of the logical structure and connection principle of the UPS uninterruptible power supply used in this power distribution terminal.

[0011] In the figure:

[0012] 1-DC power supply mechanism, 2-power supply device, 3-alarm device, 4-main circuit, 5-bypass;

[0013] 21-extension battery pack, 22-connection terminal; 31-power failure monitoring module, 32-battery pack monitoring module, 33-wireless communication module; 41-rectifier and voltage stabilizing circuit integrated module; 51-bypass rectifier, 52-charger, 53-backup battery pack. DETAILED DESCRIPTION

[0014] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0016] The technical solution of the utility model is further described below with specific embodiments, but the protection scope of the utility model is not limited to the following embodiments.

[0017] Implementation method 1: Figure 1 As shown, the UPS uninterruptible power supply for the power distribution terminal includes a DC power supply mechanism 1, a power replenishment device 2 and an alarm device 3; wherein the power replenishment device 2 includes an extended battery pack 21 and a terminal 22, and the alarm device 3 includes a power failure monitoring module 31, a battery pack monitoring module 32 and a wireless communication module 33; the DC power supply mechanism 1 includes a main circuit 4 and a bypass circuit 5 arranged in parallel, the main circuit 4 is provided with a rectifier and voltage stabilization circuit integrated module 41, and the bypass circuit 5 is provided with a power failure power supply component, which includes a bypass rectifier 51, a charger 52 and a backup battery pack 53 connected in series; the extended battery pack 21 is divided into three groups and connected in series to a pair of terminal blocks 22, and the terminal blocks 22 of the three groups of extended battery packs 21 in series are connected to the charger 52 through a selection switch; the power failure monitoring module 31 is arranged at the downstream end of the rectifier and voltage stabilization circuit integrated module 41 and between the bypass rectifier 53 and the backup battery pack 51, and the battery pack monitoring module 32 is arranged at the downstream end of the backup battery pack 53. The wireless communication module adopts a SIM9 wireless communication module, which is used for data transmission with an external monitoring system in a GSM mode or a GPRS mode.

[0018] Embodiment 2: The selection switch between the connection terminal 22 and the charger 52 is a 3P two-way dial switch. The wireless communication module 33 communicates with the power failure monitoring module 31 and the battery monitoring module 32 via a universal asynchronous receiver and transmitter or a universal serial bus. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0019] Implementation 3: The wireless communication module 32 of the UPS uninterruptible power supply for the power distribution terminal adopts a SIM9 wireless communication module. It is used to transmit data with an external monitoring system in a GSM or GPRS manner. The remaining structures and components are as described in Implementation 1 and will not be described again.

[0020] During operation: when the distribution network is normal, the power supply of the distribution network is converted into DC by the main line rectifier and voltage stabilizing circuit integrated module and then output to the distribution terminal. After the main line loses power, the bypass starts to realize uninterrupted power supply, and the power replenishment device supplements the power to the bypass to form continuous power supply. The wireless communication module is used to transmit the operating status of the main line and bypass collected by the power-off monitoring module and the battery pack monitoring module to the monitoring host in data format through wireless communication.

[0021] The UPS uninterruptible power supply for the distribution terminal overcomes the defects of the existing distribution terminal as a DC power supply mechanism, namely, incomplete power supply monitoring and insufficient continuous power supply capacity. It sets power-off monitoring and battery status monitoring in the corresponding area of ​​the main road, and manages them uniformly through a wireless network. At the same time, it replenishes power through three series connections, and can expand the circulating battery without power failure as needed, so as to realize comprehensive monitoring of the power supply situation of the distribution terminal and continuous power supply to the functional circuit modules.

[0022] The above description shows the main features, basic principles, and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments or embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the above embodiments or embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A UPS uninterruptible power supply for power distribution terminals, Its characteristics are: The invention comprises a direct current power supply mechanism (1), a power supply device (2) and an alarm device (3); wherein the power supply device (2) comprises an extended battery pack (21) and a connection terminal (22); and the alarm device (3) comprises a power failure monitoring module (31), a battery pack monitoring module (32) and a wireless communication module (33). The DC power supply mechanism (1) comprises a main circuit (4) and a bypass circuit (5) arranged in parallel, the main circuit (4) being provided with a rectifier and voltage stabilizing circuit integrated module (41), the bypass circuit (5) being provided with a power-off power supply assembly, the power-off power supply assembly comprising a bypass rectifier (51), a charger (52) and a backup battery pack (53) connected in series; the extended battery pack (21) is divided into three groups and connected in series to a pair of connection terminals (22) respectively, the connection terminals (22) of the three groups of extended battery packs (21) in series are connected to the charger (52) via a selection switch; the power-off monitoring module (31) is arranged at the downstream end of the rectifier and voltage stabilizing circuit integrated module (41) and between the bypass rectifier (51) and the backup battery pack (53), and the battery pack monitoring module (32) is arranged at the downstream end of the backup battery pack (53).

2. The UPS uninterruptible power supply for power distribution terminal according to claim 1, Its characteristics are: The selection switch between the connection terminal (22) and the charger (52) adopts a 3P two-way dial switch.

3. The UPS uninterruptible power supply for power distribution terminal according to claim 1, Its characteristics are: The wireless communication module (33) communicates with the power failure monitoring module (31) and the battery pack monitoring module (32) via a universal asynchronous receiver / transmitter or a universal serial bus.

4. The UPS uninterruptible power supply for power distribution terminal according to claim 1, Its characteristics are: The wireless communication module (33) adopts a SIM9 wireless communication module.

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