CN110896244A - Household energy storage cabinet - Google Patents
Household energy storage cabinet Download PDFInfo
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- CN110896244A CN110896244A CN201911369078.XA CN201911369078A CN110896244A CN 110896244 A CN110896244 A CN 110896244A CN 201911369078 A CN201911369078 A CN 201911369078A CN 110896244 A CN110896244 A CN 110896244A
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- control module
- main control
- battery pack
- battery
- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 33
- 230000006854 communication Effects 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 30
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 3
- 206010033799 Paralysis Diseases 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a household energy storage cabinet, which comprises a cabinet body, a plurality of battery packs and a main control module, wherein the battery packs and the main control module are arranged in the cabinet body; each battery pack comprises a BMS intelligent protection board, each BMS intelligent protection board is in communication connection with the main control module through a first communication module, and the main control module controls charging and discharging of the corresponding battery pack through the BMS intelligent protection boards; the output buses of the battery packs are connected to an external inverter; the main control module is communicated with an external inverter through a second communication module. Each battery pack can be independently controlled, so that the energy storage cabinet is prevented from being paralyzed when the battery packs have the consistency problem, the configuration is easy to select, the fault is easy to repair, and the capacity combination is large.
Description
Technical Field
The invention relates to the technical field of battery energy storage, in particular to a household energy storage cabinet.
Background
One of the meanings of energy storage is to charge the battery pack to store energy during the low ebb of electricity consumption, and discharge the battery pack to feed back to the power grid during the high peak period of electricity consumption, so as to perform local peak shifting and valley adjusting on the power grid and balance the electricity load. Compared with the energy storage application of a power grid level, the household energy storage cabinet is more similar to a miniature energy storage power station in a household miniature power grid which is not influenced by the urban power supply pressure.
The household energy storage cabinet has the most basic property of emergency power supplies, can be suitable for areas without power grids or unstable power supply areas with relatively severe environment and high protection requirements, replaces commercial power, or is used when power is cut off and the power is unstable, and opens up markets of the areas with unstable power supply, such as remote mountainous areas, urban and rural junctions and the like. Especially in developing countries such as china, the scale of the household energy storage market caused by the instability of power supply will be a very large market.
The existing household energy storage cabinet only has one large battery or a plurality of batteries controlled in a unified mode, and when the batteries break down, the whole energy storage cabinet is always in a paralyzed state.
Disclosure of Invention
The invention aims to provide a household energy storage cabinet, each battery pack can be independently controlled, the energy storage cabinet is prevented from being paralyzed when the battery packs have the consistency problem, the configuration is easy to select, the fault is easy to repair, and the capacity combination is large.
In order to realize the purpose, the following technical scheme is adopted:
a household energy storage cabinet comprises a cabinet body, a plurality of battery packs and a main control module, wherein the battery packs and the main control module are arranged in the cabinet body; each battery pack comprises a BMS intelligent protection board, each BMS intelligent protection board is in communication connection with the main control module through a first communication module, and the main control module controls charging and discharging of the corresponding battery pack through the BMS intelligent protection boards; the output buses of the battery packs are connected to an external inverter; the main control module is communicated with an external inverter through a second communication module.
Preferably, the output buses of the battery packs are also electrically connected with a bus detection module; the bus detection module is used for collecting data of the battery pack output bus and feeding the data back to the main control module.
Preferably, the main control module uploads the battery pack data to the cloud background processor for processing through the third communication module, and the battery pack data is displayed through the mobile terminal.
Preferably, the output bus between the plurality of battery packs and the inverter is further electrically connected with a relay control module, and the relay control module is electrically connected to the main control module.
Preferably, the household energy storage cabinet further comprises a solar cell panel arranged on the outer side of the cabinet body, and the solar cell panel is used for charging the plurality of battery packs through the inverter.
Preferably, a battery compartment is arranged in the cabinet body corresponding to each battery pack; the inside of the tail of the battery compartment is provided with a charging and discharging seat, and the tail of the battery pack is provided with a charging and discharging terminal matched with the charging and discharging seat.
Preferably, the opposite sides of the cabinet body are respectively provided with an opening and closing door, the plurality of battery packs are arranged in two rows, and each row of battery packs is arranged corresponding to one opening and closing door.
Preferably, a plurality of V-shaped frames are arranged in the cabinet body in the vertical direction, and every two battery bins are arranged at the tops of the V-shaped frames back to back; the two inclined ends of the V-shaped frame are arranged towards the opening and closing door.
Preferably, the main control module is further connected with a fourth communication module.
By adopting the scheme, the invention has the beneficial effects that:
1) a plurality of battery packs are adopted to replace one battery pack to meet different capacity requirements; meanwhile, when one battery pack breaks down, the use of the whole energy storage cabinet is not influenced, other battery packs can protect the household power demand, the configuration is easy to select, the fault is easy to repair, and the capacity combination is large;
2) each battery pack can be independently controlled through the main control module, and the energy storage cabinet can still be continuously used after the battery packs have consistency problems, so that the maintenance is easy;
3) when a certain battery pack has a problem, the damaged battery pack can be directly replaced without secondary matching or operation of professional technicians, so that the maintenance and the treatment are convenient;
4) data such as the electric quantity of the battery pack can be visually displayed on the mobile terminal (such as a mobile phone), and a user can conveniently check the data.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an internal perspective view of the present invention;
FIG. 3 is a schematic block diagram of the circuit of the present invention;
FIG. 4 is a circuit diagram of a master control module according to the present invention;
FIG. 5 is a circuit diagram of a relay control module of the present invention;
FIG. 6 is a circuit diagram of a bus detection module according to the present invention;
FIG. 7 is a circuit diagram of a 4G module according to the present invention;
wherein the figures identify the description:
1-a battery pack, 2-a cabinet body,
3-a main control module, 4-a first communication module,
5-an inverter, 6-a second communication module,
7-bus detection module, 8-third communication module,
9-a relay control module, 10-a solar panel,
11-a fourth communication module, 12-a cloud background server,
13-mobile terminal, 21-battery compartment,
22-opening and closing door, 23-V-shaped frame.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 7, the invention provides a household energy storage cabinet, which comprises a cabinet body 2, a plurality of battery packs 1 and a main control module 3, wherein the battery packs 1 and the main control module are arranged in the cabinet body 2; each battery pack 1 comprises a BMS intelligent protection board, each BMS intelligent protection board is in communication connection with the main control module 3 through a first communication module 4, and the main control module 3 controls charging and discharging of the corresponding battery pack 1 through the BMS intelligent protection board; the output buses of the plurality of battery packs 1 are connected to an external inverter 5; the main control module 3 communicates with an external inverter 5 via a second communication module 6.
The output buses of the battery packs 1 are also electrically connected with a bus detection module 7; the bus detection module 7 is used for collecting data of the output bus of the battery pack 1 and feeding the data back to the main control module 3. The main control module 3 uploads the data of the battery pack 1 to the cloud background processor 12 for processing through the third communication module 8, and the data is displayed through the mobile terminal 13. And the output buses between the battery packs 1 and the inverter 5 are also electrically connected with a relay control module 9, and the relay control module 9 is electrically connected to the main control module 3. The household energy storage cabinet further comprises a solar cell panel 10 arranged on the outer side of the cabinet body 2, and the solar cell panel 10 is used for charging the plurality of battery packs 1 through the inverter 5.
A battery bin 21 is arranged in the cabinet body 2 corresponding to each battery pack 1; the inner side of the tail part of the battery bin 21 is provided with a charging and discharging seat, and the tail part of the battery pack 1 is provided with a charging and discharging terminal matched with the charging and discharging seat. The opposite both sides of the cabinet body 2 are provided with the opening and closing door 22 respectively, the battery packs 1 are arranged in two rows, and each row of battery packs 1 is arranged corresponding to one opening and closing door 22. A plurality of V-shaped frames 23 are vertically distributed in the cabinet body 2, and every two battery bins 21 are arranged at the tops of the V-shaped frames 23 back to back; the two inclined ends of the V-shaped frame 23 are disposed toward the opening and closing door 22. The main control module 3 is further connected with a fourth communication module 11, and the communication module is reserved for standby.
The working principle of the invention is as follows:
the intelligent power supply is matched with the inverter 5 for use, the first/fourth communication module 4/11 adopts RS485 communication, the second communication module 6 adopts CAN communication, the third communication module 8 adopts a 4G module, and the 4G module is mainly used for uploading data to the cloud background server 12. The mobile terminal 13, such as a mobile phone, a tablet personal computer, etc., is convenient for a user to check the data of the battery pack 1 through the APP, and is implemented by using the existing software technology without involving software improvement. In addition, the bottom of the cabinet body 2 is also provided with a movable wheel, so that the energy storage cabinet is convenient to move.
The energy storage cabinet can replace the commercial power or be used when the power is cut off and the power is unstable. Further, the solar cell panel 10 is charged during the day and used at night. In a specific embodiment, the battery pack 1 is a standard battery pack for an electric bicycle, and when a user needs to use the battery pack on the electric bicycle, the battery pack can be directly used by directly taking one battery pack and placing the battery pack on the electric bicycle, so that the battery pack is simple and easy to implement.
Each group battery 1 is internally provided with a BMS intelligent protection board, in a specific embodiment, the BMS intelligent protection board adopts the technical scheme of 'a power battery group intelligent BMS management system' disclosed in Chinese patent CN209169323U, can detect the temperature, the voltage and other information of the group battery 1 in real time, effectively monitors the service life or the fault of the group battery 1, and meanwhile, the master control module 3 can control the charging and discharging of the corresponding group battery 1 through the BMS intelligent protection board.
The battery pack 1 is switched on and off by the main control module 3 according to the state of the battery pack 1, so that the battery pack 1 can be replaced at will (different battery packs 1 are switched to charge and discharge). Because each group battery 1 all embeds there is BMS intelligence protection shield, and each group battery 1 all possesses communication switch, and the state that main control module 3 can obtain through communication process comes the different group batteries of selective switch.
In one embodiment, the number of the V-shaped frames 23 is 7, and the two battery compartments 21 are placed back to back on the top of the V-shaped frame 23, i.e. each battery compartment 21 is placed on a V-shaped slant end, so that the battery 1 can be inserted into the battery compartment 21 to help the battery 1 slide into the battery compartment 21. Meanwhile, the charging and discharging seat is arranged on the inner side of the tail part of the battery bin 21, and when the battery pack 1 is inserted into the position, the battery pack 1 is electrically connected with the charging and discharging seat through a charging and discharging terminal on the tail part of the battery pack.
The 7V-shaped frames 23 can be used for placing 14 battery bins 21, each battery pack 1 can be independently used and operated by non-technicians, and different numbers of battery packs 1 can be inserted according to actual requirements. Meanwhile, the battery packs 1 in the cabinet 2 may be used all together or may be partially used, and when one battery pack 1 in the battery packs 1 in use is taken out or has a fault, other unused battery packs 1 are automatically replenished.
The battery pack 1 will age along with the increase of the service time, the internal resistance shown after aging increases, the capacity decreases, and the charging and discharging time will change correspondingly, i.e. the consistency of the battery pack 1 will have problems, which are the inherent problems of the battery pack 1, different voltages and different capacities. In the case where the battery pack 1 is used alone, the entire charge and discharge process is not uniform in time because of the difference in capacity. If a plurality of battery packs 1 are controlled in a unified manner (cannot be controlled individually), there is a problem that maintenance is difficult when a problem of consistency occurs between the battery packs 1.
When the battery pack 1 is not inserted into the battery compartment 21, the battery pack 1 is closed by default, after the battery pack 1 is placed into the battery compartment 21, the main control module 3 reads information and then selectively opens the battery pack 1(BMS intelligent protection board), and the battery pack 1 is opened at a proper time to avoid the problem caused by opening errors. When a certain battery pack 1 is directly pulled out from the outside, the main control module 3 monitors that the battery pack 1 has been removed, and replaces the battery pack with another battery pack 1.
The bus detection module 7: and collecting the current, voltage, power and total energy of the output bus of the battery pack 1.
And (3) discharging state: when the output bus current of the battery pack 1 is greater than 500mA (or a certain set value), the main control module 3 configures all the battery packs 1 to be in a state that the discharge MOS transistor is turned on and the charge MOS transistor is turned off.
Standing: when the output bus current of the battery pack 1 is less than 500mA (or a certain set value), the main control module 3 configures all the battery packs 1 to be in a state that the discharge MOS transistors are turned on and the charge MOS transistors are turned off.
The charging state is as follows: when the output bus current of the battery pack 1 is greater than 500mA (or a certain set value), and when the current value is less than 500mA (or a certain set value), the battery pack is switched to a static state, and at this time, the main control module 3 configures all the battery packs 1 to be in a state that the discharge MOS transistors are closed and the charge MOS transistors are opened.
Discharge current: when the battery pack 1 is in a discharge state, the current value of the output bus of the battery pack 1 is detected by the bus detection module 7.
Charging current: when the battery pack 1 is in a charging state, the current value of the output bus of the battery pack 1 is detected by the bus detection module 7.
The main control module 3: through the RS485 bus, the detailed information and the output bus information of each battery pack 1 are collected, and the charging and discharging states of the battery packs 1 are switched according to the real-time state of the battery packs 1.
1) Reading the battery pack 1 detailed information: total voltage, single voltage, current, temperature, electric quantity, working state, abnormal alarm and the like (realized by the first communication module 4 and the BMS intelligent protection board);
2) reading bus detection module 7 data: bus voltage, bus current, bus power, etc.;
3) reporting the data of the battery pack 1 to a cloud background server 12 through a 4G module 8;
4) the mobile terminal 13 reads the data of the battery pack 1 from the cloud background server 12, and monitors the running state of the battery pack 1 and gives an abnormal alarm in real time.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A household energy storage cabinet is characterized by comprising a cabinet body, a plurality of battery packs and a main control module, wherein the battery packs and the main control module are arranged in the cabinet body; each battery pack comprises a BMS intelligent protection board, each BMS intelligent protection board is in communication connection with the main control module through a first communication module, and the main control module controls charging and discharging of the corresponding battery pack through the BMS intelligent protection boards; the output buses of the battery packs are connected to an external inverter; the main control module is communicated with an external inverter through a second communication module.
2. The household energy storage cabinet as claimed in claim 1, wherein the output buses of the plurality of battery packs are further electrically connected with a bus detection module; the bus detection module is used for collecting data of the battery pack output bus and feeding the data back to the main control module.
3. The household energy storage cabinet of claim 2, wherein the main control module uploads the battery pack data to the cloud background processor for processing through the third communication module, and the battery pack data is displayed through the mobile terminal.
4. The household energy storage cabinet as claimed in claim 1, wherein a relay control module is electrically connected to the output bus between the plurality of battery packs and the inverter, and the relay control module is electrically connected to the main control module.
5. The household energy storage cabinet according to claim 1, further comprising a solar panel disposed outside the cabinet body, the solar panel being configured to charge the plurality of battery packs through the inverter.
6. The household energy storage cabinet as claimed in claim 1, wherein a battery compartment is provided in the cabinet body corresponding to each battery pack; the inside of the tail of the battery compartment is provided with a charging and discharging seat, and the tail of the battery pack is provided with a charging and discharging terminal matched with the charging and discharging seat.
7. A household energy storage cabinet according to claim 6, wherein the opposite sides of the cabinet body are respectively provided with an opening and closing door, the plurality of battery packs are arranged in two rows, and each row of battery packs is arranged corresponding to one opening and closing door.
8. The household energy storage cabinet according to claim 7, wherein a plurality of V-shaped frames are arranged in the cabinet body in the vertical direction, and every two battery compartments are arranged back to back on the tops of the V-shaped frames; the two inclined ends of the V-shaped frame are arranged towards the opening and closing door.
9. The home energy storage cabinet according to claim 1, wherein a fourth communication module is further connected to the main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911369078.XA CN110896244A (en) | 2019-12-26 | 2019-12-26 | Household energy storage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911369078.XA CN110896244A (en) | 2019-12-26 | 2019-12-26 | Household energy storage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110896244A true CN110896244A (en) | 2020-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911369078.XA Pending CN110896244A (en) | 2019-12-26 | 2019-12-26 | Household energy storage cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117977760A (en) * | 2024-02-02 | 2024-05-03 | 泰州市常拓储能科技有限公司 | Control system based on energy storage cabinet charge-discharge management usefulness |
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| JP2014524099A (en) * | 2011-05-31 | 2014-09-18 | エルジー・ケム・リミテッド | Power storage system including modularized BMS connection structure and control method thereof |
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| CN208337183U (en) * | 2017-12-15 | 2019-01-04 | 蔚来汽车有限公司 | Expandable type electric charging equipment and its charge/discharge unit |
| CN211456727U (en) * | 2019-12-26 | 2020-09-08 | 深圳市智锂能源科技有限公司 | Household energy storage cabinet |
-
2019
- 2019-12-26 CN CN201911369078.XA patent/CN110896244A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014524099A (en) * | 2011-05-31 | 2014-09-18 | エルジー・ケム・リミテッド | Power storage system including modularized BMS connection structure and control method thereof |
| KR20150039397A (en) * | 2013-10-02 | 2015-04-10 | 주식회사 코캄일렉트로닉스 | System BMS and Energy storage system including the same |
| CN203722260U (en) * | 2013-11-20 | 2014-07-16 | 中国电子科技集团公司第五十四研究所 | Miniature portable mobile power supply |
| CN206865212U (en) * | 2017-04-13 | 2018-01-09 | 深圳市华宝新能源股份有限公司 | A kind of safe energy storing and electricity generating rack of family solar energy |
| CN107732336A (en) * | 2017-09-30 | 2018-02-23 | 深圳市沃特玛电池有限公司 | A kind of EMS |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117977760A (en) * | 2024-02-02 | 2024-05-03 | 泰州市常拓储能科技有限公司 | Control system based on energy storage cabinet charge-discharge management usefulness |
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