CN211744126U

CN211744126U - UPS power supply integrated system capable of being parallel-connected

Info

Publication number: CN211744126U
Application number: CN201921713799.3U
Authority: CN
Inventors: 何森
Original assignee: Guizhou Taten Electric System Co ltd
Current assignee: Guizhou Taten Electric System Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-10-23
Anticipated expiration: 2029-10-14

Abstract

The utility model belongs to the technical field of power electronics, concretely relates to UPS power integrated system that can parallel operation. The UPS maintenance that exists can cause the puzzlement and need recalculate the problem of the corresponding battery of configuration and UPS power when adding UPS in order to solve with electrical apparatus, the utility model provides a can not cause the puzzlement to electrical apparatus to single UPS maintenance, and add the UPS power integrated system that can parallel operation that the UPS mode is simple. In order to achieve the above object, the technical solution of the present invention is that, a parallel UPS power integrated system includes a plurality of UPS integrated cabinets, a storage battery and an electrical appliance, wherein the UPS integrated cabinets are integrated with a plurality of UPS modules, and the UPS modules are provided with an inverter, a rectifier, a main circuit air switch and a bypass air switch; the UPS integrated cabinet further comprises a parallel operation module, a monitoring module, a bypass system, a communication system, a redundancy system and a heat dissipation device.

Description

UPS power supply integrated system capable of being parallel-connected

Technical Field

The utility model belongs to the technical field of power electronics, concretely relates to UPS power integrated system that can parallel operation.

Background

The UPS can be widely applied to a plurality of industries such as electric power, telecommunication, finance, government, manufacturing and the like, can ensure that the UPS continuously works for a period of time after one end time of power failure, timely converts mains supply into storage battery supply to realize 0-time switching, and can be used for eliminating 'power pollution' such as surge, instant high voltage, instant low voltage, wire noise, low frequency and the like on the mains supply.

In a general UPS integrated system, if the UPS needs to be maintained, the electric appliance may be powered off temporarily or powered directly by the mains supply to cause instability, and when the UPS needs to be added, the UPS needs to be recalculated to configure the corresponding battery and the UPS power.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the UPS maintenance that above-mentioned exists can cause the puzzlement to with electrical apparatus and need recalculate the corresponding battery of configuration and UPS power when adding UPS, the utility model provides a can not cause the puzzlement to electrical apparatus to single UPS maintenance, and add the UPS power integrated system that can parallel operation that the UPS mode is simple.

In order to achieve the above object, the technical solution of the present invention is that, a parallel UPS power integrated system includes a plurality of UPS integrated cabinets, a storage battery and an electrical appliance, wherein the UPS integrated cabinets are integrated with a plurality of UPS modules, and the UPS modules are provided with an inverter, a rectifier, a main circuit air switch and a bypass air switch; the UPS integrated cabinet further comprises a parallel operation module, a monitoring module, a bypass system, a communication system, a redundancy system and a heat dissipation device. Preferably, the heat dissipation device is provided with an auxiliary heat dissipation device besides a common fan, the auxiliary heat dissipation device comprises a fixed frame and a heat dissipation supporting plate, the fixed frame is fixedly connected with the cabinet frame, and the heat dissipation supporting plate is fixedly connected with the fixed frame and the cabinet frame; the fixing frame is L-shaped, and one side of the fixing frame is provided with a plurality of slotted holes for fixing the UPS; the end part of the heat dissipation supporting plate is abutted against the fixed frame, and the tail part of the heat dissipation supporting plate is fixedly connected with the cabinet frame; the tail part of the heat dissipation supporting plate is provided with a fixing lug, a hole is formed in the fixing lug and used for being connected with a cabinet frame, heat dissipation blocks are arranged on two sides of the heat dissipation supporting plate, and the heat dissipation blocks are integrated by a plurality of heat dissipation fins and are connected with the heat dissipation supporting plate in a sliding mode; the tail end of the heat dissipation assembly block is provided with an inclined plane. Preferably, the UPS module further includes a hot plug structure, and the hot plug structure is disposed between the UPS power source and the cabinet.

Preferably, the hot plug structure is any one of the power lines, is divided into four sections, sequentially passes through each positioning screw hole, and is then connected with the inverter or the rectifier, and the positioning screw holes are used for being connected with the cabinet; the positioning screw hole is internally provided with a conducting structure, and the conducting structure comprises a bottom rubber gasket which is arranged on the bottom surface of the positioning screw hole; the isolation rubber gasket is arranged in the positioning screw hole and positioned above the bottom rubber gasket; the annular wire connector is arranged between the bottom rubber gasket and the isolation rubber gasket, and the diameter of the annular wire connector is larger than that of the bottom of the isolation rubber gasket and smaller than that of the bottom rubber gasket; the cap-shaped metal conductive structure is sleeved at the upper end of the isolation rubber gasket and is fixedly connected with the isolation rubber gasket; the isolation rubber gasket is divided into an upper end and a lower end, the upper end and the lower end are both cylindrical, and the diameter of the cylinder at the upper end is smaller than that of the cylinder at the lower end.

Preferably, the redundant system supplies power to one electrical appliance for a plurality of UPS modules at the same time, so that the stable operation of the electrical appliance is ensured.

Preferably, the parallel operation module is arranged on the UPS integrated cabinet and the storage battery; the parallel operation module comprises a parallel operation socket and a parallel operation joint, and the parallel operation joint adopts a branch connector; and the parallel machine joint is used for being connected with a storage battery.

The utility model has the following contents: (1) each UPS module of the bypass system adopts an independent control system, the UPS modules are independently controlled according to the shared information, and the fault module can be immediately separated from the parallel operation module after being out of service, so that the parallel operation module is not damaged; (2) each UPS module in the bypass system is internally provided with an automatic bypass switch and a corresponding bypass current-sharing inductor, so that the current-sharing performance of bypass power supply of the system is good; (3) the UPS modules in the system can share batteries, the number of the batteries is not limited by the number of parallel machines, the number of battery configurations is greatly reduced, a user can configure the batteries completely according to the backup time, and the batteries do not need to be recalculated when the UPS modules or the equipment cabinets are newly added; (4) when the SNMP card is selected, the remote monitoring of the UPS integrated system can be realized; (5) the maintenance bypass function can be switched to the maintenance bypass to supply power when an emergency occurs, and maintenance personnel can safely maintain the system on line; (6) when the UPS is installed, a user needs to hold the UPS by one person and install the UPS by the other person, however, the UPS can be directly placed on the heat dissipation supporting plate, then the handle of the UPS is inserted into the corresponding hole groove on the fixing frame, and the UPS can be directly fixed by the screw; (7) the heat dissipation supporting plate is convenient to mount, and after the heat dissipation supporting plate is mounted, the tail end of the heat dissipation block is an inclined surface when the UPS is inserted, so that the heat dissipation block is opened in the process of inserting the UPS and is contacted with the side surface of the cabinet, and the purpose of heat dissipation is achieved; (8) in the hot plug structure, after the screw tightening, cap form metal conducting structure and cyclic annular wire connector contact, after the screw is all tightened, then this circuit switches on, and the UPS module gets into operating condition, so the hot plug structure can detect the elasticity condition of screw, also convenient dismantlement.

Drawings

FIG. 1: schematic diagram of integrated system

FIG. 2: UPS Integrated machine cabinet front view

FIG. 3: UPS Integrated cabinet rear view

FIG. 4: schematic diagram of UPS module system

FIG. 5: schematic diagram of UPS module rectifier

FIG. 6: schematic diagram of auxiliary heat dissipation structure

FIG. 7: schematic diagram of hot plug structure

FIG. 8: schematic diagram of internal structure of positioning screw hole

In the figure: 1. the device comprises a heat dissipation supporting plate, 2, a sliding groove, 3, a heat dissipation assembly block, 4, a fixing frame, 5, a monitoring module switch, 7, an emergency shutdown key, 9, a UPS module, 10, a cap-shaped metal conductive structure, 11, an annular lead connector, 12, a bottom rubber gasket, 13, an isolation rubber gasket, 14, a bypass maintenance switch, 15, an output air switch, 16, a battery air switch, 17, a positioning screw hole, 18, a lead, 19, an RS485 interface, 21, an RS232 interface, 22, an OPTION interface, 25, an SNMP card slot, 26, an intelligent network slot, 32, a main circuit air switch, 33, a parallel machine socket, 36, a bypass air switch, 37, a bypass static switch, 39, a rectifier, 40 and an inverter.

Detailed Description

A UPS power supply integrated system capable of parallel operation comprises a plurality of UPS integrated cabinets, a storage battery and electrical appliances, wherein a plurality of UPS modules 9 are integrated in the UPS integrated cabinets, and an inverter 40, a rectifier 39, a main circuit air switch 32 and a bypass air switch are arranged in each UPS module 9; the UPS integrated cabinet further comprises a parallel operation module, a monitoring module, a bypass system, a communication system, a redundancy system and a heat dissipation device.

The heat dissipation device is provided with an auxiliary heat dissipation device besides a common fan, the auxiliary heat dissipation device comprises a fixed frame 4 and a heat dissipation supporting plate 1, the fixed frame 4 is fixedly connected with the cabinet frame, and the heat dissipation supporting plate is fixedly connected with the fixed frame 4 and the cabinet frame; the fixing frame 4 is L-shaped, and one side of the fixing frame is provided with a plurality of slotted holes for fixing the UPS; the end part of the heat dissipation supporting plate 1 is abutted against the fixed frame 4, and the tail part of the heat dissipation supporting plate 1 is fixedly connected with the cabinet frame; the tail part of the heat dissipation supporting plate 1 is provided with a fixing lug, a hole is formed in the fixing lug and used for being connected with a cabinet frame, heat dissipation blocks 3 are arranged on two sides of the heat dissipation supporting plate 1, and the heat dissipation blocks 3 are integrated by a plurality of heat dissipation fins and are connected with the heat dissipation supporting plate 1 in a sliding mode; the tail end of the heat dissipation assembly 3 is provided with an inclined plane; the heat dissipation supporting plate 1 is also provided with a sliding groove 2 for the heat dissipation aggregate 3 to slide.

The UPS module 9 further includes a hot plug structure, and the hot plug structure is disposed between the UPS power source and the cabinet.

The hot plug structure is characterized in that any one of power lines is taken, the hot plug structure is divided into four sections, the four sections sequentially pass through the positioning screw holes 17 and then are connected with the inverter 40 or the rectifier 39, and the positioning screw holes 17 are used for being connected with the cabinet; a conduction structure is also arranged in the positioning screw hole 17, and the conduction structure comprises a bottom rubber gasket 12 which is arranged on the bottom surface of the positioning screw hole 17; the isolation rubber gasket 13 is arranged in the positioning screw hole 17 and is positioned above the bottom rubber gasket 12; the annular lead connector 11 is arranged between the bottom rubber gasket 12 and the isolation rubber gasket 13, and the diameter of the annular lead connector is larger than that of the bottom of the isolation rubber gasket 13 and smaller than that of the bottom rubber gasket 12; the cap-shaped metal conducting structure 10 is sleeved at the upper end of the isolation rubber gasket 13 and is fixedly connected with the isolation rubber gasket 13; the insulating rubber gasket 13 is divided into an upper end and a lower end, both of which are cylindrical, wherein the diameter of the upper end cylinder is smaller than that of the lower end cylinder.

The redundancy system supplies power to one electrical appliance by the UPS modules 9 at the same time, and ensures the stable operation of the electrical appliance.

The parallel operation module is arranged on the UPS integrated cabinet and the storage battery; the parallel operation module comprises a parallel operation socket 33 and a parallel operation joint, and the parallel operation joint adopts a branch connector; and the parallel machine joint is used for being connected with a storage battery.

Each UPS module 9 of the bypass system adopts an independent control system, the UPS modules 9 are independently controlled according to the shared information, and the fault module can be immediately separated from the parallel operation module after being out of service, so that the parallel operation module is not damaged; each UPS module 9 in the bypass system is internally provided with an automatic bypass switch and a corresponding bypass current-sharing inductor, so that the current-sharing performance of bypass power supply of the system is good; the UPS module 9 in the system can share batteries, the number of the batteries is not limited by the number of parallel machines, the number of battery configurations is greatly reduced, a user can configure the batteries completely according to the backup time, and the batteries do not need to be recalculated when the UPS module 9 or the cabinet is newly added; when the SNMP card is selected, the remote monitoring of the UPS integrated system can be realized; the maintenance bypass function can be switched to the maintenance bypass to supply power when an emergency occurs, and maintenance personnel can safely maintain the system on line; when the UPS is installed, a user needs to hold the UPS and install the UPS by another person, however, the UPS can be directly placed on the heat dissipation supporting plate 1, then the handle of the UPS is inserted into the corresponding hole groove on the fixing frame 4, and the UPS can be directly fixed by using screws; the heat dissipation supporting plate 1 is convenient to install, and after the heat dissipation supporting plate 1 is installed, the tail end of the heat dissipation assembly 3 is an inclined surface when the UPS is inserted, so that the heat dissipation assembly 3 is opened in the process of inserting the UPS and is contacted with the side surface of the cabinet, and the purpose of heat dissipation is achieved; in the hot plug structure, after the screw is tightened, the cap-shaped metal conductive result 10 is in contact with the annular wire connector 11, and after the screw is tightened, the circuit is conducted, and the UPS module 9 enters a working state, so that the hot plug structure can detect the tightness of the screw and is convenient to disassemble.

The integrated rack of UPS still including control switch, control switch include: an output air switch 1515, one end of which is connected with the UPS module 9 and the other end of which is connected with the electrical appliance, for controlling the output of the UPS module 9 to the electrical appliance; a battery empty switch 16, one end of which is connected with the UPS module 9 and the other end of which is connected with the external battery, for controlling the output of the UPS module 9 to the external battery; the monitoring module switch 5 is used for controlling the starting and stopping of the monitoring module; and an emergency shutdown key 7 for emergency one-key shutdown.

The communication system comprises an RS485 interface 19, an RS232 interface 21, an OPTION interface 22, an SNMP card slot 25 and an intelligent network slot 26, and the interfaces are arranged to improve the compatibility of the UPS integrated system.

The UPS module further comprises: the conversion main loop is connected with the UPS module 9 and is connected with the output air switch 15 and the battery air switch 16; a bypass static switch 37, one end of which is connected with the UPS module 9 and the other end of which is connected with the output air switch 15; a bypass service switch 14 connected in parallel with the bypass static switch 37; the main conversion loop consists of an inverter 40 and a rectifier 39; the bypass static switch 37 consists of a silicon controlled rectifier and a relay which are connected in parallel in an opposite direction, and the mains supply can directly supply power to the load through the bypass static switch 37; the bypass service switch 14 is a circuit breaker.

As shown in fig. 1, the main bypass of the UPS is split, and the bypass power is sent to each UPS module 9 through the bypass inductor to realize distributed bypass output. The main circuit power supply and the battery are sent to each UPS module 9 through copper bars. The 10 UPS modules 9 share one output air switch 15. In the service bypass state, the bypass power is directly output through the service bypass air switch 36.

As shown in fig. 3, each UPS module 9 has a bypass air switch 36 and a main bypass air switch 32. When the bypass air opening 36 is closed, the bypass power to the cabinet is fed to the UPS module 9. The UPS module 9 powers up and then competes with other modules for the host at any time. The UPS module 9 detects the states of the cabinet output idle switch 15 and bypass voltage, frequency and phase sequence, if the output idle switch 15 is switched on and the frequency of the bypass voltage is in an allowable range, the UPS host machine can send a bypass output command, all modules meeting the conditions can output bypass, and meanwhile, a bypass indicator lamp is lightened. When the main circuit air switch 32 is closed, if the main circuit power supply voltage, the frequency and the phase sequence all meet the conditions, the UPS module 9 starts soft start, and when the bus voltage rises to about 310V, the PFC boost circuit starts to work, and the bus voltage continues to rise to about 370V. The inverter 40 is started, and when all the module inverters 40 are ready, the inverter is reported to the host, and the host sends a command to switch to an inversion state. If the bypass voltage, the frequency and the phase sequence are normal, the inverter voltage tracks the bypass power supply and then is switched to the inverter output without interruption, otherwise, the UPS module 9 is switched to the inverter 40 to output intermittently. The inverter indicator light is on, the bypass indicator light is off, and the UPS inverter 40 supplies power and outputs. If the battery is normal, the UPS module 9 will initiate the charger to charge the battery.

As shown in fig. 5, the area a is a commercial power rectifier circuit, the area B is a battery input circuit, the area C is a common booster circuit, the area a and the area C form a commercial power PFC rectifier circuit, and the area B and the area C form a battery booster circuit.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A UPS power supply integrated system capable of parallel operation is characterized by comprising a plurality of UPS integrated cabinets, a storage battery and electrical appliances, wherein a plurality of UPS modules are integrated in the UPS integrated cabinets, and an inverter, a rectifier, a main circuit air switch and a bypass air switch are arranged in each UPS module; the UPS integrated cabinet further comprises a parallel operation module, a monitoring module, a bypass system, a communication system, a redundancy system and a heat dissipation device.

2. The UPS power supply integration system capable of being parallel-connected according to claim 1, wherein the heat dissipation device is provided with an auxiliary heat dissipation device besides a common fan, the auxiliary heat dissipation device comprises a fixing frame and a heat dissipation supporting plate, the fixing frame is fixedly connected with a cabinet frame, and the heat dissipation supporting plate is fixedly connected with the fixing frame and the cabinet frame; the fixing frame is L-shaped, and one side of the fixing frame is provided with a plurality of slotted holes for fixing the UPS; the end part of the heat dissipation supporting plate is abutted against the fixed frame, and the tail part of the heat dissipation supporting plate is fixedly connected with the cabinet frame; the tail part of the heat dissipation supporting plate is provided with a fixing lug, a hole is formed in the fixing lug and used for being connected with a cabinet frame, heat dissipation blocks are arranged on two sides of the heat dissipation supporting plate, and the heat dissipation blocks are integrated by a plurality of heat dissipation fins and are connected with the heat dissipation supporting plate in a sliding mode; the tail end of the heat dissipation assembly block is provided with an inclined plane.

3. The integrated system of claim 1, wherein the UPS module further comprises a hot-plug structure, and the hot-plug structure is disposed at a connection between the UPS power supply and the cabinet.

4. The UPS power supply integrated system capable of being parallel-connected according to claim 3, wherein the hot plug structure is any one of power supply lines, is divided into four sections, passes through each positioning screw hole in sequence, and is then connected with an inverter or a rectifier, and the positioning screw holes are used for being connected with a cabinet; the positioning screw hole is internally provided with a conducting structure, and the conducting structure comprises a bottom rubber gasket which is arranged on the bottom surface of the positioning screw hole; the isolation rubber gasket is arranged in the positioning screw hole and positioned above the bottom rubber gasket; the annular wire connector is arranged between the bottom rubber gasket and the isolation rubber gasket, and the diameter of the annular wire connector is larger than that of the bottom of the isolation rubber gasket and smaller than that of the bottom rubber gasket; the cap-shaped metal conductive structure is sleeved at the upper end of the isolation rubber gasket and is fixedly connected with the isolation rubber gasket; the isolation rubber gasket is divided into an upper end and a lower end, the upper end and the lower end are both cylindrical, and the diameter of the cylinder at the upper end is smaller than that of the cylinder at the lower end.

5. The UPS power supply integration system capable of being parallel-connected according to claim 1, wherein the redundancy system supplies power to one electrical appliance for a plurality of UPS modules at the same time, so that stable operation of the electrical appliance is ensured.

6. The UPS power supply integration system of claim 1, wherein the parallel operation module is disposed on the UPS integration cabinet and the storage battery; the parallel operation module comprises a parallel operation socket and a parallel operation joint, the parallel operation joint adopts a branch connector, and the parallel operation joint is used for being connected with a storage battery.