CN202178592U - Relay array for controlling large-scale battery packs - Google Patents
Relay array for controlling large-scale battery packs Download PDFInfo
- Publication number
- CN202178592U CN202178592U CN201120288938XU CN201120288938U CN202178592U CN 202178592 U CN202178592 U CN 202178592U CN 201120288938X U CN201120288938X U CN 201120288938XU CN 201120288938 U CN201120288938 U CN 201120288938U CN 202178592 U CN202178592 U CN 202178592U
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- Prior art keywords
- relay
- management system
- battery pack
- cell management
- series
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- Withdrawn - After Issue
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Abstract
A relay array for controlling large-scale battery packs comprises at least one relay I. One ends of the relays I are correspondingly connected with positive poles of all large-scale battery packs which form an energy storage battery module, the relay I has the same number as the large-scale battery pack, the other ends of the relays I are connected to a positive pole of an inverter through a relay II after being in parallel connection with each other, the positive pole of the inverter is connected with a positive pole of a solar panel through a relay III, and negative poles of all the large-scale battery pack are in parallel connection with each other and then are connected with a negative pole of the inverter and a negative pole of the solar panel. The relay array for controlling the large-scale battery packs is compact in structure, stable and reliable in work, high in safety performance and easy to operate. The opening and closing service life of the relays is over ten thousand times, thereby being favorable for prolonging service life of a controller.
Description
Technical field
The utility model relates to a kind of relay array, especially relates to a kind of relay array that is used for large-sized battery pack control.
Background technology
At present, the mode that battery pack is controlled in common being used to has two kinds, even with electronic switch and physical switch, but electronic switch is on fire easily under the high-voltage great-current situation, and instability is also dangerous; Physical switch needs operation manually, can't realize the auto-closing of switch, troublesome poeration.
The utility model content
In order to overcome the above-mentioned defective that prior art exists, the utility model provides a kind of working stability, and is safe and reliable, the relay array that is mainly used in large-sized battery pack control easy and simple to handle.
The technical scheme of the utility model is:
It comprises at least one relay I (preferred S3 series relay); The anodal connection of each the macrocell group with constituting the energy-storage battery module that each relay I one end is corresponding; Relay I number is identical with macrocell group number; Each relay I other end also connects the back and is connected to the inverter positive pole through relay II (preferred S4 serial relay); Inverter is anodal to connect the solar panels positive pole through relay III (preferred S5 series relay), and each macrocell group negative pole connects together and connects inverter negative pole and solar panels negative pole.
Also comprise at least one relay IV (preferred S1 series relay); What each relay IV one end was corresponding is connected with each macrocell group is anodal; Relay IV number is identical with macrocell group number, each relay IV other end and connect after be connected to the output of balanced DC/DC module; All macrocell group negative poles and connect after connect the negative pole of balanced DC/DC module.
Also comprise at least one relay V (preferred S2 series relay); What each relay V one end was corresponding is connected with each macrocell group is anodal; Relay V number is identical with macrocell group number, each relay V other end and connect after be connected to the input of balanced DC/DC module.
Relay I (preferred S3 series relay), relay II (preferred S4 series relay), relay III (preferred S5 series relay), relay IV (preferred S1 series relay) and relay V (preferred S2 series relay) all are electrically connected with the top cell management system; The break-make of each relay is controlled by the top cell management system; The top cell management system is electrically connected with inverter; The top cell management system is connected with the solar panels positive electrical through current sensor; Current sensor is directly given the top cell management system with the generation current data passes of solar panels; The top cell management system is directly gathered the solar panels voltage data, and the top cell management system is electrically connected with balanced DC/DC module through 485 communication interfaces, is used to detect and control the work of balanced DC/DC module.
At least two cell series connection constitute a baby battery group, and a plurality of baby battery group series connection constitute the macrocell group, and a plurality of macrocell groups parallel connection on demand form the energy-storage battery module.
When relay I (preferred S3 series relay), relay II (preferred S4 series relay), relay III (preferred S5 series relay) conducting, solar panels are given inverter power supply with battery pack, are supplied power to external electrical network by inverter.When relay III (preferred S5 series relay) disconnection, relay I (preferred S3 series relay), relay II (preferred S4 series relay) connection are given inverter power supply separately by battery pack.Break off when relay II (preferred S4 series relay), relay III (preferred S5 series relay) is connected, and gives inverter power supply separately by solar panels.
When wherein one the road or several roads macrocell group charge/discharge electricity amount occurs and be below or above whole module average; And when surpassing pre-set threshold value (pre-set threshold value is the setting maximum of macrocell group single group voltage and all macrocell group average electrical pressure reduction), need carry out the equilibrium (promptly to carrying out equilibrium between each macrocell group) between module; If wherein one the road or several roads battery charge electric weight too high, the serial relay of the corresponding relay V that connects of the battery pack of each high electric weight of conducting (preferred S2 series relay) then is as the input of balanced DC/DC module; With other all macrocell groups or wherein after the corresponding relay IV that connects of the less macrocell group of certain several electric weight (the preferred S1 series relay) conducting and connect the output of balanced DC/DC module.By the macrocell group charging that the macrocell group of high electric weight is given low electric weight, control the time that balanced DC/DC module conducting is charged through the top cell management system, make all macrocell group electric weight consistency reach optimization.If it is wherein a certain road or several roads electric weight are lower, balanced in the same way.
The utility model compact conformation, working stability is reliable, and security performance is high, and is simple to operate, because the relay folding life-span more than 10,000 times, helps prolonging the useful life of controller.
Description of drawings
Fig. 1 is the utility model relay array and top cell management system syndeton sketch map;
Fig. 2 is battery pack and bottom cell management system, middle level battery management system syndeton sketch map;
Fig. 3 is the total attachment structure sketch map of relay array, battery pack, top cell management system, bottom cell management system and middle level battery management system.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
With reference to Fig. 1, present embodiment comprises six relay I, and the relay I is selected S3 series relay for use; Six relay I are respectively S3-1, S3-2, S3-3, S3-4, S3-5, S3-6, and anodal connection of each the macrocell group with constituting the energy-storage battery module that each relay I one end is corresponding, relay I number is identical with macrocell group number; Each relay I other end also connects the back and is connected to the inverter positive pole through the relay II, and the relay II is selected S4 series relay for use, among the figure; The relay II is expressed as S4-1; It is anodal that the inverter positive pole meets solar panels PCS through the relay III, and the relay III is selected S5 series relay for use, among the figure; The relay III is expressed as S5-1, and each macrocell group negative pole connects together and connects inverter negative pole and solar panels PCS negative pole.
Also comprise six relay IV; The relay IV is selected S1 series relay for use; Six relay IV are respectively S1-1, S1-2, S1-3, S1-4, S1-5, S1-6; What each relay IV one end was corresponding is connected with each macrocell group is anodal, and relay IV number is identical with macrocell group number, each relay IV other end and connect after be connected to the output of balanced DC/DC module.All macrocell group negative poles and connect after connect the negative pole of balanced DC/DC module.
Also comprise six relay V; The relay V is selected S2 series relay for use; Six relay V are respectively S2-1, S2-2, S2-3, S2-4, S2-5, S2-6; What each relay V one end was corresponding is connected with each macrocell group is anodal, and relay V number is identical with macrocell group number, each relay V other end and connect after be connected to the input of balanced DC/DC module.
Relay I (S3 series relay), relay II (S4 series relay), relay III (S5 series relay), relay IV (S1 series relay) and relay V (S2 series relay) all are electrically connected with the top cell management system; The break-make of each relay is controlled by top cell; The top cell management system is electrically connected with inverter; The top cell management system is connected with solar panels PCS positive electrical through current sensor M1; Current sensor M1 directly gives the top cell management system with the generation current data passes of solar panels PCS; The top cell management system is directly gathered solar panels PCS voltage data, and the top cell management system is electrically connected with balanced DC/DC module through 485 communication interfaces, is used to detect and control the work of balanced DC/DC module.
With reference to Fig. 2; Two cell series connection constitute a baby battery group; Nine baby battery group series connection constitute a macrocell group; BT1000, BT1001 ..., BT1007, BT1008 series connection constitutes a macrocell group, six macrocell groups (macrocell group I, macrocell group II, macrocell group III, macrocell group IV, macrocell group V, macrocell group VI) parallel connection on demand form energy-storage battery module (referring to Fig. 3).
With reference to Fig. 2, each baby battery group band No. one temperature sensor PTC is used to detect baby battery group temperature.Each bottom cell management system is used to monitor three baby battery groups, monitor temperature, baby battery group voltage.Each macrocell group is by a middle level battery management system management; Be with one road current acquisition transducer M2; Monitoring macrocell group charging and discharging currents; Obtain temperature, the voltage of each baby battery group through internal bus from the bottom cell management system, and through external bus data are passed to the top cell management system, the bottom cell management system is connected (referring to Fig. 3) through the battery management system power supply with the top cell management system.
Bottom cell management system and middle level battery management system only are responsible for the collection of cell voltage, electric current, temperature parameter.
The opening and closing action of all relays all is by the control of top cell management system.
When relay I (S3 series relay), relay II (S4 series relay), relay III (S5 series relay) conducting, solar panels PCS gives inverter power supply with battery pack, is charged to external electrical network by inverter.When relay III (S5 series relay) disconnection, relay I (S3 series relay), relay II (S4 series relay) are connected, and give inverter power supply separately by battery pack.Break off when relay II (S4 series relay), relay III (S5 series relay) is connected, and gives inverter power supply separately by solar panels PCS.
When wherein one the road or several roads macrocell group charge/discharge electricity amount occurs and be below or above whole module average; And when surpassing pre-set threshold value (pre-set threshold value is the setting maximum of macrocell group single group voltage and all macrocell group average electrical pressure reduction), need carry out the equilibrium (promptly to carrying out equilibrium between each macrocell group) between module; If wherein one the road or several roads battery charge electric weight too high, the serial relay of the corresponding relay V that connects of the battery pack of each high electric weight of conducting (S2 series relay) then is as the input of balanced DC/DC module; With other all macrocell groups or wherein after the relay IV that connects of the less macrocell group correspondence of certain several electric weight (the S1 series relay) conducting and connect the output of balanced DC/DC module.By the macrocell group charging that the macrocell group of high electric weight is given low electric weight, control the time that balanced DC/DC module conducting is charged through the top cell management system, make all macrocell group electric weight consistency reach optimization.If it is wherein a certain road or several roads electric weight are lower, balanced in the same way.
The battery parameter that the top cell management system is uploaded according to the middle level battery management system (comprise voltage, charging and discharging currents, discharge and recharge the time, battery temperature) calculates each macrocell group charge/discharge electricity amount; To high electric weight battery power discharge or to low electric weight batteries charging, realize between battery pack balanced through the control relay array.
The utility model is through the top cell management system; Take period control or manual operation according to actual needs; Control when through battery pack to inverter power supply to grid charging; Or control solar panels PCS and battery pack give inverter power supply together, or control solar panels PCS is directly to inverter power supply.
The fault that any baby battery group appearance can not be settled a dispute by the parties concerned themselves in whole system; Bottom cell management system by this baby battery group of management is sent to the top cell management system with abnormal information through the middle management system; Externally send a warning by the top cell management system, and break off the parts that break down.
Claims (7)
1. one kind is used for the relay array that large-sized battery pack is controlled; It is characterized in that, comprise at least one relay I, the anodal connection of each the macrocell group with constituting the energy-storage battery module that each relay I one end is corresponding; Relay I number is identical with macrocell group number; Each relay I other end and connect the back be connected to the inverter positive pole through the relay II, the inverter positive pole connects the solar panels positive pole through the relay III, each macrocell group negative pole connects together and connects inverter negative pole and solar panels negative pole.
2. the relay array that is used for large-sized battery pack control according to claim 1; It is characterized in that; Also comprise at least one relay IV; What each relay IV one end was corresponding is connected with each macrocell group is anodal, and relay IV number is identical with macrocell group number, each relay IV other end and connect after be connected to the output of balanced DC/DC module; All macrocell group negative poles and connect after connect the negative pole of balanced DC/DC module.
3. the relay array that is used for large-sized battery pack control according to claim 1 is characterized in that, the relay I is selected S3 series relay for use, and the relay II is selected S4 series relay for use, and the relay III is selected S5 series relay for use.
4. the relay array that is used for large-sized battery pack control according to claim 2 is characterized in that, the relay IV is selected S1 series relay for use.
5. according to claim 2 or the 3 or 4 described relay arrays that are used for large-sized battery pack control; It is characterized in that; Also comprise at least one relay V; What each relay V one end was corresponding is connected with each macrocell group is anodal, and relay V number is identical with macrocell group number, each relay V other end and connect after be connected to the input of balanced DC/DC module.
6. the relay array that is used for large-sized battery pack control according to claim 5 is characterized in that, the relay V is selected S2 series relay for use.
7. the relay array that is used for large-sized battery pack control according to claim 5; It is characterized in that; Relay I, relay II, relay III, relay IV and relay V all are electrically connected with the top cell management system; The break-make of each relay is by the control of top cell management system, and the top cell management system is electrically connected with inverter, and the top cell management system is connected with the solar panels positive electrical through current sensor; Current sensor is directly given the top cell management system with the generation current data passes of solar panels; The top cell management system is directly gathered the solar panels voltage data, and the top cell management system is electrically connected with balanced DC/DC module through 485 communication interfaces, is used to detect and control the work of balanced DC/DC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120288938XU CN202178592U (en) | 2011-08-10 | 2011-08-10 | Relay array for controlling large-scale battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120288938XU CN202178592U (en) | 2011-08-10 | 2011-08-10 | Relay array for controlling large-scale battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178592U true CN202178592U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120288938XU Withdrawn - After Issue CN202178592U (en) | 2011-08-10 | 2011-08-10 | Relay array for controlling large-scale battery packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280917A (en) * | 2011-08-10 | 2011-12-14 | 深圳科力远新能源有限公司 | Relay array for controlling large-sized battery packs |
-
2011
- 2011-08-10 CN CN201120288938XU patent/CN202178592U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280917A (en) * | 2011-08-10 | 2011-12-14 | 深圳科力远新能源有限公司 | Relay array for controlling large-sized battery packs |
| CN102280917B (en) * | 2011-08-10 | 2014-03-05 | 深圳先进储能材料国家工程研究中心有限公司 | Relay array for controlling large-sized battery packs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20140305 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120328 Effective date of abandoning: 20140305 |