CN201656526U - Novel battery discharge equalizing circuit - Google Patents
Novel battery discharge equalizing circuit Download PDFInfo
- Publication number
- CN201656526U CN201656526U CN201020202973.0U CN201020202973U CN201656526U CN 201656526 U CN201656526 U CN 201656526U CN 201020202973 U CN201020202973 U CN 201020202973U CN 201656526 U CN201656526 U CN 201656526U
- Authority
- CN
- China
- Prior art keywords
- battery
- discharge
- resistance
- equalizing circuit
- heat
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000027950 fever generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
A novel battery discharge equalizing circuit comprises a discharge resistance and an on-off switch which are connected with the positive pole and the negative pole of a battery in series, wherein an infrared sensor is also connected between the positive pole and the negative pole of the battery in series. During the discharge equalizing process, the discharge resistance converts part of electric energy into heat to be released, the infrared sensor converts part of electric energy into infrared light to be quickly emitted to the space, and thereby the heat generated by the resistance is obviously reduced, and heat accumulation is prevented.
Description
[technical field]
The utility model relates to a kind of circuit, specifically a kind of novel battery equalization discharge circuit.
[background technology]
Battery has obtained using widely in people's real life as power supply or back-up source, and in order to reach certain electric pressure, battery usually needs series connection to use in groups.Yet, owing to can not accomplish in full accord in production and the use, all can there be certain difference at aspects such as self discharge and charge efficiencies between the battery, and the battery that self discharge is big, charge efficiency is low is along with the increase of cycle-index, present " positive feedback ", make that the otherness between the battery is amplified rapidly, make the capacity of battery pack and capacity usage ratio descend, when can not meeting consumers' demand, promptly be replaced, cause the serious wasting of resources.In order to address this problem, people adopt the method for bypass battery to be implemented balanced.Consideration for cost and control complexity, the conductive discharge equilibrium has obtained using widely, yet, because in the equalization discharge process, the energy of battery is transformed into heat fully by resistance, and loss on resistance causes the resistance local pyrexia serious, therefore, the equalization discharge electric current of battery and portfolio effect are subjected to bigger restriction.
The circuit theory diagrams of original equalization discharge circuit as shown in Figure 1.When detecting the equilibrium of battery needs, closed control switch, the energy of battery becomes heat energy loss by discharge resistance, the dissipation power P=U of resistance
2/ R, wherein U is a cell voltage, R is the discharge resistance value.
[utility model content]
In view of this, be necessary to provide a kind of novel battery equalization discharge circuit that can prevent that the discharge resistance heating is excessive, portfolio effect is better.
A kind of battery discharge equalizing circuit comprises the discharge resistance and the on-off switch that are series at the battery plus-negative plate two ends, also is connected with infrared emission tube between battery plus-negative plate.In the equalization discharge process, discharge resistance is converted to heat energy with the part electric energy and discharges, and infrared emission tube then is converted to the part electric energy and is transformed into infrared light, is dispersed into the space rapidly, obviously reduces the heat that resistance produces, and prevents heat accumulation.
When the voltage of battery the time apparently higher than the voltage of infrared emission tube, can be according to the actual conditions many pieces of infrared emission tubes of connecting.
[description of drawings]
Fig. 1 is the circuit diagram of existing battery discharge equalizing circuit;
Fig. 2 is the circuit diagram of the utility model embodiment battery discharge equalizing circuit.
Be further detailed below in conjunction with accompanying drawing.
[embodiment]
Be converted to the defective that the heat energy form exists at single electric energy in the existing battery discharge equalizing circuit, the utility model embodiment has proposed a kind of more perfect solution, in detail as shown in Figure 2.
The balanced loop of the battery discharge that this programme disclosed comprises two infrared emission tubes 3, discharge resistance 1 and the on-off switch 2 that is series between the battery plus-negative plate two ends.In the equalization discharge process, discharge resistance 1 is converted to heat energy with the part electric energy and discharges, and 3 of infrared emission tubes are converted to the part electric energy and are transformed into infrared light, are dispersed into the space rapidly, obviously reduce the heat that resistance produces, and prevent heat accumulation.
For the ease of understanding, followingly illustrate portfolio effect of the present utility model:
With the LiMn2O4 ion battery is example, the voltage conversion range of battery is 3.6V-4.2V, suppose that the equalization discharge electric current is about 30mA, then adopting circuitous resistance power consumption shown in Figure 1 is 108mW-126mW, and adopts the discharge loop of present embodiment, the pressure drop of infrared tube single tube is 1.4V, series connection quantity is 2, and then ohmically change in voltage scope is 3.6-1.4 * 2～4.2-1.4 * 2, i.e. 0.8V-1.4V, corresponding discharge resistance loss is 24mW-42mW, and resistance loss reduces near 70%.This shows, in the equalization discharge process, can reduce the heat that resistance produces significantly, prevent heat accumulation.
In addition, according to the actual needs, the quantity of infrared emission tube can be one piece or many pieces, and its concrete quantity approximates the tube voltage drop of the minimum operating voltage/infrared tube of battery, because of its operation principle unanimity, does not give unnecessary details at this.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (2)
1. a novel battery equalization discharge circuit comprises the discharge resistance (1) and the on-off switch (2) that are series at the battery plus-negative plate two ends, it is characterized in that: also be connected with infrared emission tube (3) between battery plus-negative plate.
2. novel battery equalization discharge circuit according to claim 1 is characterized in that: described infrared emission tube is many pieces of series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020202973.0U CN201656526U (en) | 2010-05-21 | 2010-05-21 | Novel battery discharge equalizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020202973.0U CN201656526U (en) | 2010-05-21 | 2010-05-21 | Novel battery discharge equalizing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656526U true CN201656526U (en) | 2010-11-24 |
Family
ID=43121764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020202973.0U Expired - Fee Related CN201656526U (en) | 2010-05-21 | 2010-05-21 | Novel battery discharge equalizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593903A (en) * | 2012-02-28 | 2012-07-18 | 华霆（合肥）动力技术有限公司 | Equalizing circuit for battery management system of electric automobile |
| CN111983486A (en) * | 2020-09-09 | 2020-11-24 | 华测检测认证集团股份有限公司 | Energy recovery device and battery test system |
-
2010
- 2010-05-21 CN CN201020202973.0U patent/CN201656526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593903A (en) * | 2012-02-28 | 2012-07-18 | 华霆（合肥）动力技术有限公司 | Equalizing circuit for battery management system of electric automobile |
| CN111983486A (en) * | 2020-09-09 | 2020-11-24 | 华测检测认证集团股份有限公司 | Energy recovery device and battery test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202364112U (en) | Starting circuit of control chip of switching-mode power supply | |
| CN201242572Y (en) | Aging test system for electric automobile charger | |
| CN203352246U (en) | Miniature photovoltaic controller based on super-capacitor energy accumulator | |
| CN108134141A (en) | A kind of no diaphragm static state zinc-bromine bettery | |
| CN203760568U (en) | Circuit structure for inhibiting impact current of vanadium battery energy storage system | |
| CN202918042U (en) | Series-connection-discharging and parallel-connection-charging mobile power supply | |
| CN102290846B (en) | Impedance type constant-voltage charging circuit with variable negative temperature coefficients | |
| CN102570551A (en) | Battery pack equalizing device with radiating function | |
| CN201467011U (en) | Solar mobile power supply | |
| CN202856424U (en) | System with photovoltaic cell directly powering direct current circuit of electric appliance | |
| CN202363364U (en) | Derating device for relay | |
| CN202084913U (en) | Battery over-discharge automatic switching device in DC power system | |
| CN205070585U (en) | 48V direct current poE illumination power supply system of dual power supply mode | |
| CN209709738U (en) | A kind of power supply system based on more solar panels and more rechargeable batteries | |
| CN102244398A (en) | A zero-loss photovoltaic solar charging control device and its implementation method | |
| CN204329112U (en) | The solar extraction lampblack absorber that a kind of power supply automatically switches | |
| CN203674778U (en) | Control device of solar and wind power generation system | |
| CN204145848U (en) | Integrated solar illuminator | |
| CN103022544A (en) | A stack for a flow battery | |
| CN203233234U (en) | Control device for substation power supply system | |
| CN205921434U (en) | Dual supply direct current stabilizer | |
| CN215185985U (en) | Intelligent charge and discharge control system for solar LED screen | |
| CN203787982U (en) | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency | |
| CN224021473U (en) | Multi-mode battery management system | |
| CN205753603U (en) | A kind of photovoltaic voltage stabilizing charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Fei Inventor after: Ruan Xusong Inventor after: Lao Li Inventor before: Feng Daming Inventor before: Liu Fei Inventor before: Ruan Xusong Inventor before: Lao Li |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |