CN202178599U - Double power supply device - Google Patents
Double power supply device Download PDFInfo
- Publication number
- CN202178599U CN202178599U CN2011202987170U CN201120298717U CN202178599U CN 202178599 U CN202178599 U CN 202178599U CN 2011202987170 U CN2011202987170 U CN 2011202987170U CN 201120298717 U CN201120298717 U CN 201120298717U CN 202178599 U CN202178599 U CN 202178599U
- Authority
- CN
- China
- Prior art keywords
- electronic switch
- battery
- electrically connected
- control system
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 claims abstract description 33
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 1
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007600 charging Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Abstract
Provided is a double power supply device which comprises a lead acid battery, a lithium battery and a control system. The control system is electrically connected with a bidirectional DC\DC converter, an electronic switch K1, an electronic switch K2 and an electronic switch K3, respectively. One end of the bidirectional DC\DC converter is electrically connected with the electronic switch K3, and the other end of the bidirectional DC\DC converter is electrically connected with the lithium battery and the electronic switch K1. One end of load is electrically connected the lead acid battery and the lithium battery, and the other end of the load is electrically connected with the electronic switch K1 and the electronic switch K2. The lead acid battery is also electrically connected with the electronic switch K2 and the electronic switch K3. The double power supply device is simple and compact in structure, low in self-discharging rate, high in work efficiency, wide in application range, and suitable for work with large capacity and large power.
Description
Technical field
The utility model relates to a kind of duplicate supply device.
Background technology
At present, the battery supply on the market is that list is used a kind of battery types mostly, such as lead-acid battery power supply, lithium battery power supply, ferric phosphate battery supply and ternary material battery supply.Though the lead-acid battery capacity is big, the incompatibility high power work, and do not work when leaving unused, self-discharge rate is high, causes the part capacitance loss easily.Lithium battery can adapt to high power work, can leave unused for a long time, and self-discharge rate is low, but battery capacity is less.So always inevitably there is some inherent shortcoming in the battery supply list during with a kind of battery.
The utility model content
In order to overcome the above-mentioned defective that prior art exists, the utility model provide a kind of capacity big, adapt to high power work, duplicate supply device that self-discharge rate is low.
The technical scheme of the utility model is: it comprises lead-acid battery, lithium battery, control system; Said control system is connected with electronic switch K3 with two-way DC/DC converter, electronic switch K1, electronic switch K2 electricity; Said two-way DC/DC converter one end is electrically connected with electronic switch K3; The other end is electrically connected with lithium battery and electronic switch K1; Lead-acid battery and lithium battery all are electrically connected with load one end, and the load other end is electrically connected with electronic switch K1 and electronic switch K2, and lead-acid battery also is electrically connected with electronic switch K2 and electronic switch K3.
Said control system preferably adopts the programmable control system based on microcontroller.
Control system mainly realizes the control to whole duplicate supply device through controlling three electronic switches.The lithium ion battery of high-specific-power, height ratio capacity and low cost, two kinds of batteries of jumbo lead-acid battery are united use, under the acting in conjunction of control system and two-way DC/DC converter, can select to use which kind of powered battery according to the operating mode needs.Under the high-power operating mode of needs,, select the lithium ion battery power supply for use through the control of control system; Under the lower powered operating mode of needs,, select the lead-acid battery power supply for use through the control of control system.When needing long-term storage, control two-way DC/DC, realize that lithium ion battery charges to lead-acid battery, thereby help reducing the self discharge capacitance loss of lead-acid battery, reduce the battery salinization, prolong battery useful life through control system.And, during the gap of using in, lead-acid battery can reduce the capacity requirement of lithium ion battery to lithium ion cell charging, practices thrift cost.
The utility model is simple in structure, compact; Adaptation is greater than capacity, high power work, and self-discharge rate hangs down high efficiency.Compare the utility model 30-50% that can increase the service life with existing battery pack; 5-15% reduces cost; Improve the high-power performance of battery pack, the quick charge time decreased is more than 80%, and possesses the advantage of lithium ion battery and lead-acid battery simultaneously, overcome the defective when two kinds of batteries use separately, and is applied widely.
Description of drawings
Fig. 1 is the structured flowchart of the utility model duplicate supply device one embodiment;
Fig. 2 is a kind of structural representation of two-way DC/DC converter embodiment illustrated in fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
With reference to Fig. 1; Present embodiment comprises lead-acid battery 3, lithium battery 4, control system 1; Said control system 1 is electrically connected with two-way DC/DC converter 2, electronic switch K1, electronic switch K2 and electronic switch K3 respectively; Said two-way DC/DC converter 2 one ends are electrically connected with electronic switch K3, and the other end is electrically connected with electronic switch K1 with lithium battery 4, and lead-acid battery 3 all is electrically connected with load 5 one ends with lithium battery 4; Load 5 other ends are electrically connected with electronic switch K1 and electronic switch K2, and lead-acid battery 3 also is electrically connected with electronic switch K2 and electronic switch K3.
Said control system 1 is for adopting the programmable control system based on microcontroller.
Two-way DC/DC converter 2 has ripe prior art can supply to utilize.Shown in Figure 2 is wherein a kind of circuit structure, and it is made up of inductance L 1, inductance L 2, capacitor C 1, capacitor C 2, triode T1, triode T2, diode d1, diode d2.
The utility model operation principle is:
When load current Ir was higher than threshold value Ih (threshold value Ih is by the decision of the capacity of lead-acid battery, can directly get Ih on the numerical value and be 0.15 times of rated capacity of lead-acid battery), load 5 was in the high power operating mode; The two-way DC/DC converter 2 of control system 1 control makes it be in non operating state, simultaneously; Under the effect of control system 1, electronic switch K2 breaks off, and electronic switch K3 breaks off; Electronic switch K1 connects, and starts the lithium battery power supply pattern;
When load current Ir was lower than threshold value Ih, load 5 was in the low-power operating mode, and at this moment, under the effect of control system 1, electronic switch K3 breaks off, and electronic switch K1 breaks off, and electronic switch K2 connects, and starts the lead-acid battery powering mode;
When the gap phase of duplicate supply device busy, under the effect of control system 1, electronic switch K1 and electronic switch K2 all break off; Electronic switch K3 connects; At this moment, control system 1 makes lead-acid battery 3 give lithium battery 4 chargings through controlling two-way DC/DC converter 2, gets into the idle mutual-aid mode of duplicate supply;
When the duplicate supply device needs long-term storage; Under the effect of control system 1; Electronic switch K1 and electronic switch K2 all break off, and electronic switch K3 connects, at this moment; Control system 1 makes lithium battery 4 give lead-acid battery 3 chargings through controlling two-way DC/DC converter 2, gets into the idle mutual-aid mode of duplicate supply.
Use the utility model, the rated voltage difference of the rated voltage of lithium battery 4 and lead-acid battery 3 is less than 10% of maximum rated voltage, and lithium battery 4 provides the 15-30% of total capacity, and lead-acid battery 3 provides 70-85%.1 pair of lithium battery 4 of control system, lead-acid battery 3 and use the motor that moves in the Operation Van of the said duplicate supply device of the utility model can both be monitored, charge and discharge protecting in real time, send the power supply instruction for lithium battery 4 and lead-acid battery 3.Phase working clearance is controlled the direction of two-way DC/DC converter 2 through control system when needing long-term storage, realizes that the taking-up capacity is given the lower battery charge of voltage in the higher battery of from two kinds of batteries voltage.
When being used for the utility model on the electri forklift, lithium battery 4 provides 15% of battery total capacity, and lead-acid battery provides 85% of battery total capacity.With compare in the electri forklift that adopts pure lead-acid battery in the prior art, prolonged 30% of the battery pack life-span, cost has reduced by 10%, the quick charge time decreased of battery 80%.
When being used for the utility model on the electric golf cart, lithium battery 4 provides 30% of battery total capacity, and lead-acid battery 3 provides 70% of battery total capacity.With compare in the electric golf cart that adopts pure lead-acid battery in the prior art, prolong the battery pack life-span 50%, cost has reduced by 5%, the quick charge time decreased of battery 80%.
Claims (2)
1. duplicate supply device; It is characterized in that; Comprise lead-acid battery, lithium battery, control system, said control system is connected with electronic switch K3 with two-way DC/DC converter, electronic switch K1, electronic switch K2 electricity respectively, and said two-way DC/DC converter one end is electrically connected with electronic switch K3; The other end is electrically connected with lithium battery and electronic switch K1; Lead-acid battery and lithium battery all are electrically connected with load one end, and the load other end is electrically connected with electronic switch K1 and electronic switch K2, and lead-acid battery also is electrically connected with electronic switch K2 and electronic switch K3.
2. duplicate supply device according to claim 1 is characterized in that, said control system is the programmable control system based on microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202987170U CN202178599U (en) | 2011-08-17 | 2011-08-17 | Double power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202987170U CN202178599U (en) | 2011-08-17 | 2011-08-17 | Double power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178599U true CN202178599U (en) | 2012-03-28 |
Family
ID=45868463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202987170U Expired - Lifetime CN202178599U (en) | 2011-08-17 | 2011-08-17 | Double power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290856A (en) * | 2011-08-17 | 2011-12-21 | 深圳科力远新能源有限公司 | Double-power device and power supplying method thereof |
-
2011
- 2011-08-17 CN CN2011202987170U patent/CN202178599U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290856A (en) * | 2011-08-17 | 2011-12-21 | 深圳科力远新能源有限公司 | Double-power device and power supplying method thereof |
| CN102290856B (en) * | 2011-08-17 | 2013-06-19 | 深圳先进储能材料国家工程研究中心有限公司 | Double-power device and power supplying method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN CORUN YUANXIN ENERGY SOURCES CO., LTD. Free format text: FORMER OWNER: SHENZHEN NATIONAL ENGINEERING RESEARCH CENTER OF ADVANCED ENERGY STORAGE MATERIALS CO., LTD. Effective date: 20141225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518054 SHENZHEN, GUANGDONG PROVINCE TO: 410205 CHANGSHA, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141225 Address after: Tongzi City, Hunan province 410205 Changsha Lugu national hi tech Industrial Development Zone, No. 348 West Slope Patentee after: Hunan Corun New Energy Co., Ltd. Address before: 518054, Guangdong, Nanshan District, three Hyde Road, Tianli Central Business Plaza 1, 2801-2802, Shenzhen Patentee before: Shenzhen National Engineering Research Center of Advanced Energy Storage Materials Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CORUN HYBRID TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUNAN CORUN YUANXIN ENERGY SOURCES CO., LTD. Effective date: 20150228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150228 Address after: Tongzi City, Hunan province 410205 Changsha Lugu national hi tech Industrial Development Zone, No. 348 West Slope Patentee after: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd Address before: Tongzi City, Hunan province 410205 Changsha Lugu national hi tech Industrial Development Zone, No. 348 West Slope Patentee before: Hunan Corun New Energy Co., Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 528031, room 1, building 131, No. 601-604, Hua Hua Xi Road, Chancheng District, Guangdong, Foshan, China, A Patentee after: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd Address before: Tongzi City, Hunan province 410205 Changsha Lugu national hi tech Industrial Development Zone, No. 348 West Slope Patentee before: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |