CN221042068U - Energy storage system and high-voltage cascade energy storage high-voltage box therein - Google Patents
Energy storage system and high-voltage cascade energy storage high-voltage box therein Download PDFInfo
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- CN221042068U CN221042068U CN202322540163.6U CN202322540163U CN221042068U CN 221042068 U CN221042068 U CN 221042068U CN 202322540163 U CN202322540163 U CN 202322540163U CN 221042068 U CN221042068 U CN 221042068U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 76
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 13
- 239000013307 optical fiber Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses an energy storage system and a high-voltage cascade energy storage high-voltage box thereof, relating to the technical field of electric energy storage; the utility model discloses a battery PACK, including box, power connector, direct current breaker, BCMU and power module, the box adopts pin-connected panel structure, be provided with the wire casing in the box, power connector is located the positive outside of box, direct current breaker is located the positive inside of box, power module is located the inside at the box back, BCMU is located the inside at the box side. The middle-high voltage cascade energy storage high-voltage box is integrally of an assembled structure, so that the high-voltage box is convenient to assemble and disassemble; the layout of the components is reasonable, and the maintenance and the wiring are convenient; compact structure and small occupied space.
Description
Technical Field
The application relates to the technical field of electric energy storage, in particular to a medium-high voltage cascade energy storage high-voltage box. And also relates to an energy storage system comprising the medium-high voltage cascade energy storage high-voltage tank.
Background
The energy storage system is capable of storing and discharging electrical energy and generally includes a battery cluster, a high voltage tank, a PCS, a battery rack, and the like.
The high voltage tank is also an important component of the Battery management system (Battery MANAGEMENT SYSTEM, BMS) and internally includes BCMU, current divider or hall current detection, dc circuit breaker, dc fuse, diode and various connection terminals. The medium-high voltage cascade energy storage system generally operates in a 3 kV-35 kV power system, each PCS unit is connected with each cluster of battery systems one to one, the work of the PCS units and the battery systems is 3 kV-35 kV to the ground suspension voltage, and the same is true of a high-voltage box. The function of the traditional low-voltage energy storage high-voltage box can not meet the requirement of the high-voltage box of the medium-voltage and high-voltage cascade energy storage system. In addition, the existing medium-high voltage cascade energy storage high-voltage box is inconvenient to assemble and disassemble, is unfavorable for early assembly and later maintenance, is unreasonable in space layout, occupies large volume and generates various inconveniences.
Disclosure of utility model
The application aims to provide a medium-high voltage cascade energy storage high-voltage box, which is of an assembled structure integrally and convenient to assemble and disassemble; the layout of the components is reasonable, and the maintenance and the wiring are convenient; compact structure and small occupied space. Another object of the present application is to provide an energy storage system comprising the above-mentioned medium-high voltage cascade energy storage high voltage tank.
In order to achieve the above purpose, the application provides a medium-high voltage cascade energy storage high-voltage box which is arranged in an energy storage system and is connected with a battery PACK and a PCS unit, wherein the medium-high voltage cascade energy storage high-voltage box comprises a box body, a power connector, a direct current breaker, a BCMU and a power module, the box body adopts an assembled structure, a wire slot is arranged in the box body, the power connector is positioned outside the front surface of the box body, the direct current breaker is positioned inside the front surface of the box body, the power module is positioned inside the back surface of the box body, and the BCMU is positioned inside the side surface of the box body.
In some embodiments, the box includes a front panel, a rear panel, a bottom plate, a top cover plate, a left side plate, and a right side plate, the plates being connected by a connector, the power connector being mounted to the front panel, the dc breaker being mounted to the bottom plate, the power module being mounted to the rear panel, the BCMU being mounted to the left side plate.
In some embodiments, the power connectors are four, with two of the power connectors being located at a left position near the left side plate to the PCS unit and two of the power connectors being located at a right position near the right side plate to the battery PACK.
In some embodiments, the medium-high voltage cascade energy storage high voltage tank further comprises a direct current fuse, wherein the two power connectors connected to the PCS unit are respectively connected to two terminals on the left side of the direct current breaker through copper bars in the tank body, the first power connector connected to the battery PACK is connected to one end of the direct current fuse through copper bars, the other end of the direct current fuse is connected to the first terminal on the right side of the direct current breaker through copper bars, and the second power connector connected to the battery PACK is connected to the second terminal on the right side of the direct current breaker through copper bars.
In some embodiments, the dc fuse is secured to the base plate by an insulator.
In some embodiments, the dc circuit breaker is mounted to the base plate by a breaker mounting plate.
In some embodiments, the medium-high voltage cascade energy storage high voltage tank further comprises a radiator, the radiator is mounted on the bottom plate through a radiator support, and a diode is fixed on the radiator.
In some embodiments, the medium-high voltage cascade energy storage high voltage tank further comprises a secondary terminal mounted to the base plate by a rail.
In some embodiments, the medium-high voltage cascade energy storage high voltage box further comprises a CAN optical fiber inter-rotation module, a wall penetrating terminal, an indicator lamp, a button and a handle, wherein the wall penetrating terminal, the indicator lamp and the button are installed on the front panel.
The application also provides an energy storage system which comprises a battery PACK, a PCS unit and the medium-high voltage cascade energy storage high-voltage box.
Compared with the background art, the medium-high voltage cascade energy storage high-voltage box provided by the application comprises a box body, a power connector, a direct current breaker, a BCMU and a power module, wherein the box body adopts an assembled structure, a wire slot is arranged in the box body, the power connector is positioned outside the front surface of the box body, the direct current breaker is positioned inside the front surface of the box body, the power module is positioned inside the back surface of the box body, and the BCMU is positioned inside the side surface of the box body. The high-voltage box of the medium-high voltage cascade energy storage high-voltage box is integrally of an assembled structure, so that the assembly and disassembly are convenient; the layout of the components is reasonable, and the maintenance and the wiring are convenient; compact structure and small occupied space.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a medium-high voltage cascade energy storage high voltage tank provided by an embodiment of the application;
Fig. 2 is a left side view of a medium-high voltage cascade energy storage high voltage tank provided by an embodiment of the application;
Fig. 3 is a top view of a medium-high voltage cascade energy storage high voltage tank provided by an embodiment of the application;
Fig. 4 is a perspective view of a medium-high voltage cascade energy storage high voltage tank provided by an embodiment of the application.
Wherein:
1-through-wall terminal, 2-power connector, 3-front panel, 4-top cover plate, 5-pilot lamp, 6-button, 7-direct current breaker, 8-handle, 9-CAN optical fiber inter-conversion module, 10-bottom plate, 11-left side board, 12-secondary terminal, 13-wire casing, 14-radiator support, 15-right side board, 16-breaker mounting plate, 17-BCMU, 18-power module, 19-diode, 20-radiator, 21-direct current fuse, 22-copper bar, 23-hall sensor.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.
The Battery management system (Battery MANAGEMENT SYSTEM, BMS) is a real-time monitoring system formed by electronic circuit equipment, effectively monitors Battery voltage, battery current, battery cluster insulation state, battery SOC, battery module and monomer states (voltage, current, temperature, SOC and the like), performs safety management on the charging and discharging processes of the Battery cluster, performs alarm and emergency protection treatment on possible faults, performs safety and optimal control on the operation of the Battery module and the Battery cluster, and ensures safe, reliable and stable operation of the Battery. The battery management system is a core component of the battery system and adopts a three-level safety architecture (a first-level slave control BMU, a second-level master control BCMU and a third-level master control BSMU).
The high-voltage box is an important component of the BMS and internally comprises BCMU, a shunt or Hall current detection, a direct current breaker, a direct current fuse, a diode and various connecting terminals. The high-voltage box performs authentication and information interaction with the battery PACK and the BSMU through the CAN, acquires information such as the voltage and the temperature of the battery in the battery box, and performs corresponding processing and reporting according to a given protection strategy. And the system is also responsible for functions of current collection, insulation detection and the like of the battery and measures such as related alarming and protection. Meanwhile, the PCS and BCMU in the high-voltage box keep CAN or 485 communication, the PCS participates in important information of control, such as SOC of each cluster of batteries is analyzed to participate in-phase and inter-phase SOC balance control, the BMS uploads PCS alarm signals, PCS protection signals and other dry contacts to the PCS or is connected in series with a tripping coil of the high-voltage circuit breaker, when the batteries send three-level alarms (such as three-level temperature line crossing), the PCS protection signal dry contacts are closed, an incoming circuit breaker of the energy storage system is rapidly opened, the energy storage system breaks away from a power grid, faults are searched, related protection is started, and the safety of the energy storage system is ensured.
The medium-high voltage cascade energy storage system generally operates in a 3 kV-35 kV power system, each PCS unit is connected with each cluster of battery systems one to one, the work of the PCS units and the battery systems is 3 kV-35 kV to the ground suspension voltage, and the same is true of a high-voltage box. The function of the traditional low-voltage energy storage high-voltage box can not meet the requirement of the high-voltage box of the medium-voltage and high-voltage cascade energy storage system. Aiming at the problems, the utility model provides a medium-high voltage cascade energy storage high-voltage box structure.
Referring to fig. 1 to fig. 4, fig. 1 is a front view of a medium-high voltage cascade energy storage high voltage tank provided by an embodiment of the present application, fig. 2 is a left view of the medium-high voltage cascade energy storage high voltage tank provided by the embodiment of the present application, fig. 3 is a top view of the medium-high voltage cascade energy storage high voltage tank provided by the embodiment of the present application, and fig. 4 is a perspective view of the medium-high voltage cascade energy storage high voltage tank provided by the embodiment of the present application.
The medium-high voltage cascade energy storage high-voltage box is arranged on the energy storage system and is connected with the battery PACK and the PCS unit. Referring to fig. 1, 2, 3 and 4, the medium-high voltage cascade energy storage high voltage tank includes a tank body, a power connector 2, a dc breaker 7, a BCMU17 and a power module 18. The box body adopts a spliced structure, and is convenient to assemble and disassemble. A wire slot 13 is arranged in the box body, so that wiring is facilitated. The power connector 2 is located on the outside of the front face of the case for connection to the battery PACK and PCS units. The direct current breaker 7 is located inside the front face of the box and is connected between the battery PACK and the PCS unit in the energy storage system through the power connector 2. A power module 18 is located inside the back of the cabinet to power the BCMU17 and other components. The BCMU17 is located inside the side of the case for controlling the on-off of the dc breaker 7.
The high-voltage box of the medium-high voltage cascade energy storage high-voltage box is integrally of an assembled structure, so that the assembly and disassembly are convenient; the layout of the components is reasonable, and the maintenance and the wiring are convenient; the structure is compact, and the occupied space is small; the high-voltage box is installed on the battery cluster and adopts a draw-out structure, so that the high-voltage box is convenient to disassemble and assemble.
In addition to the improvement of the box structure and the layout of the components, the connection relationship and the working principle between the high-voltage box and the battery PACK and the PCS unit are not changed, and the related contents not mentioned in the embodiment refer to the prior art, and are not described in detail herein.
Further, the medium-high voltage cascade energy storage high voltage box comprises a box body, a BCMU17, a direct current breaker 7, a direct current fuse 21, a Hall sensor 23, a diode 19, various connecting terminals, copper bars 22 and the like.
In some embodiments, the box includes front panel 3, rear panel, bottom plate 10, lamina tecti 4, left side board 11 and right side board 15, and each board is the sheet metal component, and rivets or automatic screw connection between the sheet metal, easy dismounting.
Corresponding to each board, the power connector 2 is mounted to the front panel 3, the dc breaker 7 is mounted to the bottom panel 10, the power module 18 is mounted to the rear panel, and the BCMU17 is mounted to the left side panel 11.
Further, the front panel 3 is provided with a handle 8 to facilitate the extraction and pushing of the high-voltage box over the battery cluster.
With continued reference to fig. 1, the power connectors 2 have four power connectors 2 (p+/P-) located at the left position near the left side plate 11 and connected to the PCS unit, and two power connectors 2 (b+/B-) located at the right position near the right side plate 15 and connected to the battery PACK, and the power connectors 2 are connected to the dc breaker 7 inside the box, so that the dc breaker 7 is disposed between the battery PACK and the PCS unit in the energy storage system.
In some embodiments, the medium-high voltage cascade energy storage high voltage tank further comprises a dc fuse 21, wherein the two power connectors 2 (p+/P-) connected to the PCS unit are respectively connected to the upper and lower two terminals on the left side of the dc breaker 7 through copper bars in the tank, the first power connector 2 (b+) connected to the battery PACK is connected to one end of the dc fuse 21 through copper bars 22, the other end of the dc fuse 21 is connected to the first terminal on the upper right side of the dc breaker 7 through copper bars, and the second power connector 2 (B-) connected to the battery PACK is connected to the second terminal on the lower right side of the dc breaker 7 through copper bars.
The dc fuse 21 is located in a space between the dc breaker 7 and the power module 18, and the dc fuse 21 is close to the dc breaker 7, and the BCMU17 is located in an upper left position of the dc fuse 21.
In some embodiments, the medium-high voltage cascade energy storage high voltage tank further comprises a secondary terminal 12 and a radiator 20, the secondary terminal 12 and the radiator 20 are located in the space between the dc breaker 7 and the dc fuse 21 and the power module 18, the radiator 20 is located on the right side of the secondary terminal 12, and the BCMU17 is located on the left side of the secondary terminal 12.
In some embodiments, the medium-high voltage cascade energy storage high voltage box further comprises a CAN optical fiber inter-conversion module 9, a wall penetrating terminal 1, an indicator lamp 5 and a button 6, wherein the wall penetrating terminal 1, the indicator lamp 5 and the button 6 are mounted on the front panel 3. As shown in fig. 1, a part of the dc breaker 7 is exposed from the opening in the middle of the front panel 3, at this time, two power connectors 2 are respectively distributed on the left and right sides of the dc breaker 7, an indicator lamp 5 and a button 6 are disposed on the upper side of the dc breaker 7, a handle 8 is disposed on the lower side of the dc breaker 7, a plurality of rows of through-wall terminals 1 are disposed on the lower side of the handle 8, and a can optical fiber inter-rotating module 9 is disposed on the end of the last row of through-wall terminals 1.
In a specific embodiment, the direct current plastic shell breaker (direct current breaker 7) of the medium-high voltage cascade energy storage high-voltage box is installed on a breaker installation plate 16, the breaker installation plate 16 is fixed on a bottom plate 10, a BCMU17 is installed on a left side plate 11, a direct current fuse 21 is fixed on the bottom plate 10 through an insulator, a power module 18 is fixed on a rear panel, a diode 19 is fixed on a radiator 20, the radiator 20 is fixed on the bottom plate 10 through a radiator bracket 14, a secondary terminal 12 is fixed on the bottom plate 10 through a guide rail, a wall penetrating terminal 1, a power connector 2, a button 6, an indicator lamp 5 and the like are fixed on a front panel 3, the layout of components is reasonable, the structure is compact, the occupied space is small, a wire slot is distributed on the bottom plate, and wiring is convenient.
In summary, the utility model provides a medium-high voltage cascade energy storage high-voltage box structure, wherein the high-voltage box is integrally of an assembled structure, so that the assembly and disassembly are convenient; the layout of the components is reasonable, and the maintenance and the wiring are convenient; the structure is compact, and the occupied space is small; the high-voltage box is installed on the battery cluster and adopts a draw-out structure, so that the high-voltage box is convenient to disassemble and assemble.
The application also provides an energy storage system which comprises a battery PACK, a PCS unit and the medium-high voltage cascade energy storage high-voltage box, wherein the energy storage system has all the beneficial effects of the medium-high voltage cascade energy storage high-voltage box and is not described in detail herein.
It should be noted that many components mentioned in the present application are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The energy storage system and the high-voltage cascade energy storage high-voltage box provided by the application are described in detail above. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (9)
1. The utility model provides a well high-voltage cascade energy storage high-voltage box which is characterized in that is installed in energy storage system, links to each other with battery PACK and PCS unit, well high-voltage cascade energy storage high-voltage box includes box, power connector, direct current breaker, BCMU and power module, the box adopts the pin-connected panel structure, be provided with the wire casing in the box, power connector is located the positive outside of box, direct current breaker is located the positive inside of box, power module is located the inside of box back, BCMU is located the inside of box side; the box includes front panel, rear panel, bottom plate, lamina tecti, left side board and right side board, links to each other through the connecting piece between each board, power connector install in the front panel, direct current breaker install in the bottom plate, power module install in the rear panel, BCMU install in the left side board.
2. The medium-high voltage cascade energy storage high voltage tank of claim 1 wherein there are four power connectors, two of which are located at a left position near the left side plate and connected to the PCS unit and two of which are located at a right position near the right side plate and connected to the battery PACK.
3. The medium-high voltage cascade energy storage high voltage tank of claim 2, further comprising a dc fuse, wherein two of said power connectors connected to the PCS unit are connected to two terminals on the left side of said dc breaker respectively through copper bars inside said tank, a first of said power connectors connected to the battery PACK is connected to one end of said dc fuse through copper bars, the other end of said dc fuse is connected to a first terminal on the right side of said dc breaker through copper bars, and a second of said power connectors connected to the battery PACK is connected to a second terminal on the right side of said dc breaker through copper bars.
4. A medium-high voltage cascade energy storage high voltage tank according to claim 3 wherein the dc fuse is fixed to the base plate by an insulator.
5. The medium-high voltage cascade energy storage high voltage tank of claim 1, wherein the dc circuit breaker is mounted to the base plate by a circuit breaker mounting plate.
6. The medium-high voltage cascade energy storage high voltage tank of claim 1, further comprising a radiator mounted to the base plate by a radiator bracket, the radiator having a diode fixed thereto.
7. The medium-high voltage cascade energy storage high voltage tank of claim 1, further comprising a secondary terminal mounted to the base plate by a rail.
8. The medium-high voltage cascade energy storage high voltage tank of claim 1, further comprising a CAN fiber inter-conversion module, a wall penetrating terminal, an indicator light, a button and a handle, wherein the wall penetrating terminal, the indicator light and the button are mounted on the front panel.
9. An energy storage system comprising a battery PACK, a PCS unit and a medium-high voltage cascade energy storage high voltage tank according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322540163.6U CN221042068U (en) | 2023-09-18 | 2023-09-18 | Energy storage system and high-voltage cascade energy storage high-voltage box therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322540163.6U CN221042068U (en) | 2023-09-18 | 2023-09-18 | Energy storage system and high-voltage cascade energy storage high-voltage box therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042068U true CN221042068U (en) | 2024-05-28 |
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ID=91139066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322540163.6U Active CN221042068U (en) | 2023-09-18 | 2023-09-18 | Energy storage system and high-voltage cascade energy storage high-voltage box therein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042068U (en) |
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2023
- 2023-09-18 CN CN202322540163.6U patent/CN221042068U/en active Active
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