High-voltage-to-low-voltage uninterrupted auxiliary power supply equipment

Abstract

The utility model discloses a high-voltage to low-voltage uninterrupted auxiliary power supply device, which belongs to the technical field of electronics and comprises a shell, an internal frame, a battery pack, an electronic component and a radiating block, the internal frame is arranged in the shell and divides the interior of the shell into an upper area and a lower area, the battery pack is arranged in the lower area of the shell, and the electronic component is arranged in the upper area of the shell. The electronic components are fixed to the upper area of the inner frame and the side portion of the heat dissipation block in a scattered mode, the battery pack is electrically connected with the electronic components, and the heat dissipation block is arranged between the battery pack and the shell. The equipment is provided with a BMS as a communication conversion center, communication information of other equipment is forwarded or compiled and then forwarded to other communication equipment, monitoring and state information uploading of all parts or functions of the equipment can be achieved, and control over fault risks is achieved. On the basis of converting high voltage into low voltage, a battery energy storage part is added, the problem of low-voltage power failure caused by high-voltage instantaneous power failure is effectively solved, meanwhile, battery energy storage is electrochemical energy, and interference of the electromagnetic problem can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electronic technology, specifically, it relates to a high-voltage to low-voltage uninterruptible auxiliary power supply device. Background Technology

[0002] Currently, vehicles and ships are equipped with electrical equipment that operates at relatively high voltage levels (400-700V) to meet the requirements of rapid or high-power response. Therefore, many vehicles and ships are equipped with generators that operate at high voltage levels. This necessitates transformers to convert the high-voltage electricity to the appropriate low-voltage power for smaller devices requiring low voltage (24V), such as control room platforms and communication platforms. However, in some scenarios, electromagnetic interference can significantly impact these generators, causing temporary power shortages, especially for control platforms or communication equipment operating at low voltage.

[0003] No effective solution to the above problems has yet been found. Utility Model Content

[0004] The technical problem this invention aims to solve is to address the above-mentioned shortcomings by proposing a high-voltage to low-voltage uninterrupted auxiliary power supply device to overcome the short-term impact of electromagnetic interference on power generation equipment. A battery energy storage unit is added to the existing transformer. When the power generation equipment supplies high-voltage power, it can be converted to low-voltage power in real time to supply power to low-voltage equipment, while simultaneously charging the battery energy storage unit. When the high-voltage power supply to the power generation equipment fails or goes offline, the battery energy storage unit switches to the main circuit to provide power. Because lithium batteries are an electrochemical energy source, they are not sensitive to electromagnetic interference, thus solving the short-term power supply difficulties caused by electromagnetic interference.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a high-voltage to low-voltage uninterruptible auxiliary power supply device, including a housing, an internal frame, a battery pack, electronic components and a heat sink.

[0006] The internal frame is placed inside the housing, dividing the housing into upper and lower regions. The battery pack is placed in the lower region of the housing. The electronic components are dispersed and fixed in the upper region of the internal frame and on the side of the heat sink. The battery pack is electrically connected to the electronic components. The heat sink is placed between the battery pack and the housing.

[0007] Furthermore, the housing includes a first housing and a second housing, which are fixedly connected to form a closed area. The first housing has hanging ears at both ends, and the upper end of the hanging ears has a handle.

[0008] The bottom of the first housing is provided with symmetrical positioning pins, and the upper part of the first housing is provided with two communication terminals, two input terminals and twelve output terminals.

[0009] Furthermore, the heat sink is fixed to one end of the inner side of the first housing.

[0010] Furthermore, the internal frame includes a first frame and a second frame.

[0011] The first frame and the second frame are fixed to the first housing in sequence.

[0012] Furthermore, the battery pack includes a battery module and a BMS, and the BMS includes a BMS master and a BMS slave that are electrically connected.

[0013] The battery module is electromechanically connected to the BMS host and BMS slave.

[0014] The battery module is fixed in the lower region of the first frame and the second frame.

[0015] The BMS host is fixed on one side of the first frame, and the BMS slave is fixed on one side of the second frame.

[0016] Furthermore, the battery module includes a plurality of cylindrical cells and cell supports. The cell supports fix and connect the cylindrical cells together. Resin plates are provided between and on the outside of the cell supports. The outer layer of the resin plates is wrapped with heat-shrink film. Symmetrical fixing brackets are provided on the outer layer of the heat-shrink film. Connectors are provided at both ends of the fixing brackets for fixing them.

[0017] Furthermore, the electronic components include a current limiting module, a power supply module, a fuse, a first bus, a second bus, a first relay, a second relay, a third relay, two first anti-reverse diodes, and two second anti-reverse diodes.

[0018] The first bus and two second anti-reverse diodes are fixed sequentially at the upper end of the first frame.

[0019] The fuse and the second busbar are fixed to the inner side of the upper end of the first frame.

[0020] The current limiting module is fixed to the upper end of the second frame.

[0021] The power module and two first anti-reverse diodes are arranged and fixed on the heat sink.

[0022] The first relay and the second relay are fixed to the inner side of the upper end of the second frame, and the second relay is fixed to the first housing.

[0023] Furthermore, the input terminal is connected to one end of the power module, the other end of the power module is connected to one end of the first relay and the first reverse protection diode, the other end of the first relay is connected to one end of the current limiting module, the other end of the current limiting module is connected to the BMS slave, the BMS slave is also connected to the battery module, the BMS host, and one end of the second reverse protection diode, the BMS host is also connected to the communication terminal, the other end of the first reverse protection diode is connected to one end of the third relay, the other end of the second reverse protection diode is connected to one end of the second relay, the other end of the second relay is connected to one end of the third relay, the other end of the third relay is connected to one end of the fuse, and the other end of the fuse is connected to the output terminal.

[0024] The present invention adopts the above technical solution and has the following advantages compared with the prior art:

[0025] 1. The battery energy storage section in this device is connected in parallel to the output bus, which can effectively absorb and replenish the power of the output bus. During use, it can effectively stabilize the output power and effectively cope with the impact of bus current and insufficient power supply.

[0026] 2. This equipment is reasonably designed and fully functional, incorporating a battery energy storage section to effectively solve the problem of low-voltage power outages caused by instantaneous high-voltage power failures. Simultaneously, the energy storage section stores a certain amount of electricity, effectively meeting low-voltage power needs for a certain period and ensuring the normal power supply of low-voltage equipment. Utilizing battery energy storage as electrochemical energy effectively avoids electromagnetic interference.

[0027] 3. This equipment is equipped with a BMS (Battery Management System) as a communication conversion center, which forwards or compiles communication information from other devices and forwards it to other communication devices. At the same time, it can monitor and upload status information of its own components or functions, so as to control the risk of failure and allow users to keep track of the equipment status in real time. Attached Figure Description

[0028] Appendix Figure 1 This is a structural diagram of the high-voltage to low-voltage uninterruptible auxiliary power supply equipment in this utility model embodiment;

[0029] Appendix Figure 2 This is a partial structural diagram of the high-voltage to low-voltage uninterruptible auxiliary power supply equipment in this utility model embodiment;

[0030] Appendix Figure 3 yes Figure 1 A structural diagram with the shell removed;

[0031] Appendix Figure 4 This is a structural diagram of the first frame in an embodiment of this utility model;

[0032] Appendix Figure 5This is a structural diagram of the second frame in an embodiment of this utility model;

[0033] Appendix Figure 6 This is a structural diagram of the cylindrical battery cell in an embodiment of this utility model;

[0034] Appendix Figure 7 This is a structural diagram of the resin plate in an embodiment of this utility model;

[0035] Appendix Figure 8 This is a structural diagram of the heat-shrinkable film in an embodiment of this utility model;

[0036] Appendix Figure 9 This is a structural diagram of the fixed bracket in an embodiment of this utility model;

[0037] Appendix Figure 10 This is a connection diagram of the electronic components in an embodiment of this utility model;

[0038] In the diagram: 101-First housing, 102-Second housing, 103-Hook, 104-Handle, 105-Positioning pin, 201-First frame, 202-Second frame, 3-Battery module, 301-Cylindrical cell, 302-Cell bracket, 303-Resin board, 304-Heat shrink film, 305-Fixing bracket, 306-Connector, 4-Heat sink, 5-BMS host, 6-BMS slave, 7-Current limiting module, 8-Power module, 9-Communication terminal, 10-Input terminal, 11-Output terminal, 12-Fuse, 13-First busbar, 14-Second busbar, 15-First relay, 16-Second relay, 17-Third relay, 18-First anti-reverse diode, 19-Second anti-reverse diode. Detailed Implementation

[0039] The present invention will be further described below. Those skilled in the art should understand through the following embodiments that these embodiments are not intended to limit the technical solution of the present invention, but merely to fully illustrate how to implement it.

[0040] Examples, such as Figure 1-10 As shown, a high-voltage to low-voltage uninterruptible auxiliary power supply device includes a housing, an internal frame, a battery pack, electronic components, and a heat sink 4.

[0041] The internal frame is placed inside the housing, dividing the housing into upper and lower regions. The battery pack is placed in the lower region of the housing. Electronic components are dispersed and fixed in the upper part of the internal frame and the side of the heat sink 4. The battery pack is electrically connected to the electronic components. The heat sink 4 is placed between the battery pack and the housing.

[0042] The housing includes a first housing 101 and a second housing 102. The first housing 101 and the second housing 102 are fixedly connected to form a closed area. The two ends of the first housing 101 are respectively provided with hanging ears 103, and the upper end of the hanging ears 103 is provided with a handle 104 for easy hanging or carrying.

[0043] The bottom of the first housing 101 is provided with symmetrical positioning pins 105 for fixing the equipment.

[0044] The upper part of the first housing 101 is provided with two communication terminals 9, two input terminals 10 and twelve output terminals 11, providing communication and power connection between the device and the outside world.

[0045] The heat sink 4 is fixed to one end of the inner side of the first housing 101 for heat dissipation of the device.

[0046] The internal frame includes a first frame 201 and a second frame 202, which provide support and separation for the internal components of the device.

[0047] The first frame 201 and the second frame 202 are fixed to the first housing 101 in sequence.

[0048] The battery pack includes a battery module 3 and a BMS. The BMS includes a BMS master 5 and a BMS slave 6 that are electrically connected. The battery module 3 is electrically connected to the BMS master 5 and the BMS slave 6.

[0049] The battery module 3 is fixed in the lower region of the first frame 201 and the second frame 202.

[0050] BMS host 5 is fixed on one side of the first frame 201 and is responsible for the main control function of the battery management system.

[0051] BMS slave 6 is fixed to one side of the second frame 202 and works in conjunction with BMS master 5 to monitor and manage the battery pack.

[0052] The battery module 3 includes several cylindrical cells 301 and cell brackets 302. The cell brackets 302 fix and connect the cylindrical cells 301 together. Resin plates 303 are provided between and outside the cell brackets 302. The resin plates 303 are wrapped with heat-shrink film 304. Symmetrical fixing brackets 305 are provided on the outer layer of the heat-shrink film 304. The fixing brackets 305 are provided with connectors 306 at both ends for fixing.

[0053] The electronic components include a current limiting module 7, a power supply module 8, a fuse 12, a first bus 13, a second bus 14, a first relay 15, a second relay 16, a third relay 17, two first anti-reverse diodes 18, and two second anti-reverse diodes 19.

[0054] The first busbar 13 and the two second anti-reverse diodes 19 are fixed sequentially on the first frame 201.

[0055] The fuse 12 and the second busbar 14 are fixed to the inner side of the upper end of the first frame 201.

[0056] The current limiting module 7 is fixed at the upper end of the second frame 202.

[0057] The power module 8 and two first anti-reverse diodes 18 are arranged and fixed on the heat sink 4.

[0058] The first relay 15 and the third relay 17 are fixed to the inner side of the upper end of the second frame 202, and the second relay 16 is fixed to the first housing 101.

[0059] Input terminal 10 is connected to one end of power module 8. The other end of power module 8 is connected to one end of first relay 15 and first anti-reverse diode 18. The other end of first relay 15 is connected to one end of current limiting module 7. The other end of current limiting module 7 is connected to BMS slave 6. BMS slave 6 is also connected to battery module 3, BMS host 5, and one end of second anti-reverse diode 19. BMS host 5 is also connected to communication terminal 9. The other end of first anti-reverse diode 18 is connected to one end of third relay 17. The other end of second anti-reverse diode 19 is connected to one end of second relay 16. The other end of second relay 16 is connected to one end of third relay 17. The other end of third relay 17 is connected to one end of fuse 12. The other end of fuse 12 is connected to output terminal 11.

[0060] This power supply device is a 48V auxiliary power supply. The power supply device is equipped with an external switch, which serves as the action switch for turning the 48V auxiliary power supply on and off. After the switch is closed, the BMS (Battery Management System) is activated. The internal BMS first checks whether the battery pack is normal. The BMS checks various information of the battery pack according to the protocol requirements, and uploads various information of the battery pack and the remaining power. At the same time, it completes information processing and transmission with other devices.

[0061] Power module 8 is a 1200W constant voltage output module, primarily providing 1200W of power output to 12 48V output terminals. It can also charge the battery pack simultaneously when there is no battery pack failure. In this circuit, power module 8, the battery pack, and the 12 loads are all on the same bus. A 200W current limiting module 7 is configured in the battery pack charging circuit to ensure that high-power charging does not occur in the battery pack charging circuit.

[0062] The power supply equipment includes two external 700V input to 12-channel 48V output terminals 10 and a battery pack with 12-channel 48V output terminals 11. It can complete the charging and discharging of a single circuit or seamlessly switch between two circuits.

[0063] This equipment, based on the high-voltage (400V~700V) to low-voltage (48V) conversion, adds a battery energy storage section to effectively solve the problem of low-voltage power outage caused by instantaneous high-voltage power failure. Simultaneously, the energy storage section stores a certain amount of electricity (0.6kWh), which can effectively meet low-voltage power needs for a certain period, ensuring the normal power supply of low-voltage equipment. Utilizing battery energy storage as electrochemical energy effectively avoids electromagnetic interference.

[0064] This equipment is equipped with a BMS as a communication conversion center, which forwards or compiles communication information from other devices and forwards it to other communication devices. At the same time, it can monitor and upload status information of its own components or functions, so as to control the risk of failure and allow users to keep track of the equipment status in real time.

[0065] The above description provides examples of the preferred embodiments of the present invention. Parts not detailed herein are common knowledge to those skilled in the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. A high-voltage to low-voltage uninterruptible auxiliary power supply device, comprising a housing, an internal frame, a battery pack, electronic components, and a heat sink (4), characterized in that: The internal frame is placed inside the housing, and the internal frame divides the housing into upper and lower regions. The battery pack is placed in the lower region of the housing. The electronic components are dispersed and fixed in the upper region of the internal frame and on the side of the heat sink (4). The battery pack is electrically connected to the electronic components. The heat sink (4) is placed between the battery pack and the housing.

2. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 1, characterized in that: The housing includes a first housing (101) and a second housing (102), the first housing (101) and the second housing (102) are fixedly connected to form a closed area, and the first housing (101) is provided with a hanging ear (103) at both ends, and a handle (104) is provided at the upper end of the hanging ear (103); The bottom of the first housing (101) is provided with symmetrical positioning pins (105), and the upper part of the first housing (101) is provided with two communication terminals (9), two input terminals (10) and twelve output terminals (11).

3. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 2, characterized in that: The heat sink (4) is fixed to one end of the inner side of the first housing (101).

4. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 3, characterized in that: The internal frame includes a first frame (201) and a second frame (202); The first frame (201) and the second frame (202) are fixed to the first housing (101) in sequence.

5. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 4, characterized in that: The battery pack includes a battery module (3) and a BMS, wherein the BMS includes a BMS host (5) and a BMS slave (6) that are electrically connected. The battery module (3) is electrically connected to the BMS host (5) and the BMS slave (6); The battery module (3) is fixed in the lower region of the first frame (201) and the second frame (202); The BMS host (5) is fixed to one side of the first frame (201), and the BMS slave (6) is fixed to one side of the second frame (202).

6. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 5, characterized in that: The battery module (3) includes a plurality of cylindrical cells (301) and cell brackets (302). The cell brackets (302) fix and connect the cylindrical cells (301) together. Resin plates (303) are provided between and outside the cell brackets (302). The resin plates (303) are wrapped with heat-shrink film (304). Symmetrical fixing brackets (305) are provided on the outer layer of the heat-shrink film (304). The fixing brackets (305) are provided with connectors (306) at both ends for fixing.

7. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 6, characterized in that: The electronic components include a current limiting module (7), a power supply module (8), a fuse (12), a first bus (13), a second bus (14), a first relay (15), a second relay (16), a third relay (17), two first anti-reverse diodes (18), and two second anti-reverse diodes (19); The first busbar (13) and two second anti-reverse diodes (19) are fixed sequentially at the upper end of the first frame (201); The fuse (12) and the second busbar (14) are fixed to the inner side of the upper end of the first frame (201); The current limiting module (7) is fixed to the upper end of the second frame (202); The power module (8) and two first anti-reverse diodes (18) are arranged and fixed on the heat sink (4); The first relay (15) and the third relay (17) are fixed on the inner side of the upper end of the second frame (202), and the second relay (16) is fixed on the first housing (101).

8. The high-voltage to low-voltage uninterruptible auxiliary power supply device according to claim 7, characterized in that: The input terminal (10) is connected to one end of the power module (8), and the other end of the power module (8) is connected to one end of the first relay (15) and the first anti-reverse diode (18). The other end of the first relay (15) is connected to one end of the current limiting module (7), and the other end of the current limiting module (7) is connected to the BMS slave (6). The BMS slave (6) is also connected to one end of the battery module (3), the BMS host (5), and the second anti-reverse diode (19). The BMS host (5) is also connected to the communication terminal (9). The other end of the first anti-reverse diode (18) is connected to one end of the third relay (17). The other end of the second anti-reverse diode (19) is connected to one end of the second relay (16). The other end of the second relay (16) is connected to one end of the third relay (17). The other end of the third relay (17) is connected to one end of the fuse (12). The other end of the fuse (12) is connected to the output terminal (11).

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