CN204465061U - A kind of novel household energy-storage battery - Google Patents
A kind of novel household energy-storage battery Download PDFInfo
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- CN204465061U CN204465061U CN201520121034.6U CN201520121034U CN204465061U CN 204465061 U CN204465061 U CN 204465061U CN 201520121034 U CN201520121034 U CN 201520121034U CN 204465061 U CN204465061 U CN 204465061U
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Abstract
The utility model discloses a kind of novel household energy-storage battery, comprise battery management system, charge switch and discharge switch is provided with in described battery management system, one end of charge switch connects anode, discharge switch is connected with fuse and battery cathode, and described battery management system is externally connected with display screen, cell switch and communication terminal.The utility model can realize the fast integration of lithium battery and photovoltaic DC-to-AC converter, guarantees battery security and reliability simultaneously.Determined charging or the electric discharge behavior of photovoltaic DC-to-AC converter by flag bit and discharge and recharge power-limiting, form battery first class of protection; Abundant communication interface provides the running status of battery; The second class protection of battery is realized by inside battery charge and discharge switch; Battery shutdown realizes the three-level protective of family expenses energy-storage battery; The protection of battery level Four is realized by the fuse/circuit breaker of inside battery; Guaranteed the consistency of battery core by inside battery battery core equalizing system, ensure battery life.
Description
Technical field
The utility model is specifically related to a kind of novel household energy-storage battery.
Background technology
In recent years, along with the extensive installation of photovoltaic combining inverter, its unsteadiness, the inherent shortcomings such as discontinuity have threatened the stable operation of public electric wire net gradually.Current many countries put into effect regulation on the one hand, and the access of restriction photovoltaic combining inverter is progressively lowered online subsidy on the other hand, reduced the income of combining inverter.Current Germany, European countries' rate for incorporation into the power network subsidies such as Britain are lower than mains supply electricity price.
Along with the fast development of electric automobile, the cost of lithium battery progressively reduces, and useful life extends gradually.Lithium battery is accessed common photovoltaic parallel in system, and first the energy that common photovoltaic combining inverter produces meets household load and uses, then by unnecessary stored energy in the battery.When night or illumination deficiency, by battery powering load, form type energy-storage system of independently generating power for their own use, make user progressively depart from online subsidy, form market-oriented photovoltaic energy storage industry.
But how by lithium battery fast integration in common photovoltaic energy storage system, ensure family expenses energy-storage battery safety and reliability, can guarantee lithium battery useful life of 10 ~ 20 years to become the key technology of family expenses energy-storage battery simultaneously.
Utility model content
Utility model object: in order to solve the deficiencies in the prior art, the utility model provides one, optimizes home energy source supply mode, solve the key technology of lithium battery and the common photovoltaic energy storage system integration, make family expenses energy-storage battery can safety, reliably, the long-life be run.
Technical scheme: a kind of novel household energy-storage battery, comprise battery management system, charge switch and discharge switch is provided with in described battery management system, one end of charge switch connects anode, discharge switch is connected with fuse and battery cathode, and described battery management system is externally connected with display screen, cell switch and communication terminal.
As optimization: can also circuit breaker be connected with between described discharge switch and battery cathode.
As optimization: described communication interface specifically communication interface is CAN communication or RS-485 communication.。
As optimization: described charge switch is MOSFET or relay specifically.
As optimization: described discharge switch is MOSFET or relay specifically.
As optimization: described battery is LiFePO4 48V battery specifically, take 16 batteries in parallel.
Beneficial effect: the utility model can realize the fast integration of lithium battery and photovoltaic DC-to-AC converter, guarantees battery security and reliability simultaneously.Determined charging or the electric discharge behavior of photovoltaic DC-to-AC converter by flag bit and discharge and recharge power-limiting, form battery first class of protection; Abundant communication interface provides the running status of battery; The three-level protective of family expenses energy-storage battery is realized by inside battery charge and discharge switch and battery shutdown; The protection of battery level Four is realized by the fuse/circuit breaker of inside battery; Guaranteed the consistency of battery core by inside battery battery core equalizing system, ensure battery life.
Higher level's photovoltaic DC-to-AC converter of the present utility model no longer needs the Logic judgment participating in inside battery, only needs decide the concrete behavior of family expenses energy-storage battery according to the discharge and recharge flag bit of battery and discharge and recharge power-limiting, enormously simplify the integrated difficulty of family expenses energy-storage battery, make family expenses energy-storage battery can fast integration in common photovoltaic DC-to-AC converter.When single-stage shielding failure, subordinate can be relied on to protect reliable turn-off battery, be ensure that the reliability and stability of battery by multi-stage protection.Inside battery equalizing system guarantees battery with two side terminals, makes battery life reach 20 years, significantly increases client's income.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
Embodiment
As shown in Figure 1, a kind of novel household energy-storage battery, comprise battery management system, charge switch and discharge switch is provided with in described battery management system, one end of charge switch connects anode, discharge switch is connected with fuse and battery cathode, and described battery management system is externally connected with display screen, cell switch and communication terminal.Circuit breaker can also be connected with between described discharge switch and battery cathode.
Described communication interface is CAN communication or RS-485 communication.Described charge switch is MOSFET or relay specifically.。Described discharge switch is MOSFET or relay specifically.Described LiFePO4 48V battery, takes 16 batteries in parallel.
The workflow of battery is specific as follows:
The BMS(battery management system that this battery carries) according to battery cell voltage, temperature, SOC(battery capacity) etc. state, determine the charge-discharge electric power of battery, determine the charging and discharging state of battery according to battery temperature and battery.
When battery can charge, battery charge flag position 1, representing battery can charge, and provides the charging power-limiting of battery simultaneously.When battery does not allow charging, battery charge flag position 0, represents battery and forbids charging.
When battery can discharge, battery discharge mark position 1, representing battery can discharge, and provides the electric discharge power-limiting of battery simultaneously.When battery does not allow electric discharge, battery discharge mark position 0, represents battery and forbids electric discharge.
This novel household energy-storage battery provides the running state parameter of battery by the CAN communication superior system that to communicate with RS-RS-485, and as battery cell voltage, battery current, battery temperature, battery capacity etc., make superior system monitoring battery running status more easily.
When superior system cannot respond novel household energy-storage system battery flag position, overcharging or excessively putting of battery may be caused.With this understanding, the charge switch of battery by inside battery and the charging and discharging circuit of discharge switch cut-out battery, realize the second class protection of battery.If second class protection lost efficacy, battery relied on self shutdown to realize three-level protective.If three-level protective all lost efficacy, realized the protection under bad working environments by the fuse/fuse of inside battery, form level Four protection; When battery core pressure reduction is excessive, start inside battery equalizing system, reduce battery core pressure reduction, guarantee the consistency of battery core voltage.
The utility model can realize the fast integration of lithium battery and photovoltaic DC-to-AC converter, guarantees battery security and reliability simultaneously.Determined charging or the electric discharge behavior of photovoltaic DC-to-AC converter by flag bit and discharge and recharge power-limiting, form battery first class of protection; Abundant communication interface provides the running status of battery; The three-level protective of family expenses energy-storage battery is realized by inside battery charge and discharge switch and battery shutdown; The protection of battery level Four is realized by the fuse/circuit breaker of inside battery; Guaranteed the consistency of battery core by inside battery battery core equalizing system, ensure battery life.
Higher level's photovoltaic DC-to-AC converter of the present utility model no longer needs the Logic judgment participating in inside battery, only needs decide the concrete behavior of family expenses energy-storage battery according to the discharge and recharge flag bit of battery and discharge and recharge power-limiting, enormously simplify the integrated difficulty of family expenses energy-storage battery, make family expenses energy-storage battery can fast integration in common photovoltaic DC-to-AC converter.When single-stage shielding failure, subordinate can be relied on to protect reliable turn-off battery, be ensure that the reliability and stability of battery by multi-stage protection.Inside battery equalizing system guarantees battery with two side terminals, makes battery life reach 20 years, significantly increases client's income.
For those skilled in the art, under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. a novel household energy-storage battery, it is characterized in that: comprise battery management system, charge switch and discharge switch is provided with in described battery management system, one end of charge switch connects anode, discharge switch is connected with fuse and battery cathode, and described battery management system is externally connected with display screen, cell switch and communication terminal.
2. novel household energy-storage battery according to claim 1, is characterized in that: can also be connected with circuit breaker between described discharge switch and battery cathode.
3. novel household energy-storage battery according to claim 1, is characterized in that: described communication interface is CAN communication or RS-485 communication.
4. novel household energy-storage battery according to claim 1, is characterized in that: described charge switch is MOSFET or relay specifically.
5. novel household energy-storage battery according to claim 1, is characterized in that: described discharge switch is MOSFET or relay specifically.
6. novel household energy-storage battery according to claim 1, is characterized in that: described battery is LiFePO4 48V battery specifically, takes 16 batteries in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121034.6U CN204465061U (en) | 2015-03-02 | 2015-03-02 | A kind of novel household energy-storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121034.6U CN204465061U (en) | 2015-03-02 | 2015-03-02 | A kind of novel household energy-storage battery |
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| Publication Number | Publication Date |
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| CN204465061U true CN204465061U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520121034.6U Active CN204465061U (en) | 2015-03-02 | 2015-03-02 | A kind of novel household energy-storage battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169795B (en) * | 2016-09-13 | 2018-08-17 | 沃太能源南通有限公司 | A kind of energy-storage lithium battery group and its expansion method |
| CN110994562A (en) * | 2019-12-24 | 2020-04-10 | 沃太能源南通有限公司 | High-voltage protection functional module in energy storage battery management system and control method |
-
2015
- 2015-03-02 CN CN201520121034.6U patent/CN204465061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169795B (en) * | 2016-09-13 | 2018-08-17 | 沃太能源南通有限公司 | A kind of energy-storage lithium battery group and its expansion method |
| CN110994562A (en) * | 2019-12-24 | 2020-04-10 | 沃太能源南通有限公司 | High-voltage protection functional module in energy storage battery management system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226100 No.888, Jiuhua Road, high tech Zone, Nantong City, Jiangsu Province Patentee after: Wotai Energy Co.,Ltd. Address before: 226000 Building 1, Dongda science and Technology Park, Nantong high tech Zone, Tongzhou District, Nantong City, Jiangsu Province Patentee before: NEOVOLTAIC ENERGY NANTONG Co.,Ltd. |
|
| CP03 | Change of name, title or address |