CN206451783U - A kind of balanced fail-safe circuit of multi-string battery voltage detecting - Google Patents
A kind of balanced fail-safe circuit of multi-string battery voltage detecting Download PDFInfo
- Publication number
- CN206451783U CN206451783U CN201621446852.4U CN201621446852U CN206451783U CN 206451783 U CN206451783 U CN 206451783U CN 201621446852 U CN201621446852 U CN 201621446852U CN 206451783 U CN206451783 U CN 206451783U
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- diode
- equalizing
- semiconductor
- oxide
- metal
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- 239000004065 semiconductor Substances 0.000 claims abstract description 29
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract description 3
- 230000005779 cell damage Effects 0.000 abstract description 2
- 208000037887 cell injury Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
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- Protection Of Static Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to the balanced fail safe technical field of multi-string battery voltage detecting, more particularly to a kind of balanced fail-safe circuit of multi-string battery voltage detecting.The utility model includes the metal-oxide-semiconductor connected with anode; the source electrode of the metal-oxide-semiconductor is connected with one end of equalizing resistance; the other end of the equalizing resistance is connected with one end of cell equalizing protecting circuit; the cell equalizing protecting circuit other end is connected with GND, and the grid of the metal-oxide-semiconductor is connected with control end.Cell equalizing protecting circuit is used and is sequentially connected in series and 3 diodes of closure identical; the phenomenon that efficiently avoid the brought cell damage of balanced failure occurs; the minimum conduction voltage drop of cell equalizing protecting circuit is 2.1V; therefore the voltage of battery can be limited in the state for being not less than 2.1V; effectively prevent battery, impaired phenomenon occurs by emptying; loss is reduced for user, and electronic component used in the utility model is with low cost, simple in construction, be adapted to batch production.
Description
Technical field
The utility model belongs to the balanced fail safe technical field of multi-string battery voltage detecting, more particularly to a kind of many strings
The balanced fail-safe circuit of battery voltage detection.
Background technology
Equalizing circuit in the market is mostly without balanced fail safe unit, as shown in figure 1, its operation principle is：
Control signal is sent by control end to control the turn-on and turn-off of metal-oxide-semiconductor, is reached for batteries purpose in a balanced way.Such as Fig. 2,
When metal-oxide-semiconductor receive from control end send when opening signal, by equalizing resistance formation from anode to GND
Loop so that cell voltage is released to required magnitude of voltage, and then control end sends cut-off signals and causes balanced closing.
But this circuit is damaged and the situation of short circuit if there is metal-oxide-semiconductor, it will cause battery for a long time in equal
Weighing apparatus state so that the electricity of battery is all consumed by equalizing resistance, causes the damage of battery.Or, when battery is by reversal connection,
As shown in figure 3, because the presence of the protection diode inside metal-oxide-semiconductor can form the loop from GND to anode, making
The damage that cause battery completely can also be consumed by equalizing resistance by obtaining the electricity of battery.Therefore proposition is needed badly a kind of when metal-oxide-semiconductor is damaged
Or battery can effectively be protected the balanced fail-safe circuit that battery is not consumed all by equalizing resistance by reversal connection.
Utility model content
There is provided a kind of equilibrium of multi-string battery voltage detecting in order to overcome the above-mentioned deficiencies of the prior art for the utility model
Fail-safe circuit, and batch production simple in construction, with low cost, suitable of the present utility model.
To achieve the above object, the utility model employs following technical measures：
A kind of balanced fail-safe circuit of multi-string battery voltage detecting includes the metal-oxide-semiconductor connected with anode, described
The source electrode of metal-oxide-semiconductor is connected with one end of equalizing resistance, and the other end of the equalizing resistance is connected with one end of cell equalizing protecting circuit,
The cell equalizing protecting circuit other end is connected with GND, and the grid of the metal-oxide-semiconductor is connected with control end.
The utility model can also further be realized by following technical measures.
It is preferred that, the cell equalizing protecting circuit includes being arranged at being sequentially connected in series between equalizing resistance and GND and connected
The multiple diodes of direction identical are connect, the positive pole of diode close to equalizing resistance is connected with the other end of equalizing resistance, close
The negative pole of the diode of GND is connected with GND.
It is preferred that, the diode is set to 3, respectively the first diode, the second diode and the 3rd diode,
The positive pole of first diode connects the other end of equalizing resistance, and the negative pole of the first diode is connecting the second diode just
Pole, the negative pole of second diode connects the positive pole of the 3rd diode, the negative pole and GND phase of the 3rd diode
Even.
The beneficial effects of the utility model are：
1), the utility model includes the metal-oxide-semiconductor directly connected with anode, the source electrode and equalizing resistance of the metal-oxide-semiconductor
One end be connected, the other end of the equalizing resistance is connected with one end of cell equalizing protecting circuit, and the cell equalizing protecting circuit is another
End is connected with GND, and cell equalizing protecting circuit is effectively prevented from using being sequentially connected in series and 3 diodes of closure identical
The phenomenon of the brought cell damage of balanced failure occurs, and cell equalizing protecting circuit minimum conduction voltage drop is 2.1V, therefore electricity
The voltage in pond can be limited in the state for being not less than 2.1V, and effectively prevent battery, impaired phenomenon occurs by emptying, is
User reduces loss, and electronic component used in the utility model is with low cost, simple in construction, it is raw to be adapted to batch
Production.
Be worth it is emphasized that：The utility model only protect by above-mentioned physical unit and connect each physical unit it
Between the circuit device or physical platform that are constituted, without regard to software section therein.
2), control end controls the conducting and shut-off of circuit by controlling metal-oxide-semiconductor, realizes as batteries equalizing voltage
Purpose.
Brief description of the drawings
Fig. 1 is the schematic diagram of equalizing circuit of the prior art；
Fig. 2 is the current direction schematic diagram of equalizing circuit of the prior art in the course of the work；
Fig. 3 is the battery of equalizing circuit of the prior art by the current direction schematic diagram of reversal connection；
Fig. 4 is circuit theory diagrams of the present utility model；
Fig. 5 is the current direction schematic diagram of the utility model in the course of the work；
Fig. 6 is battery of the present utility model by the current direction schematic diagram of reversal connection.
Reference implication in figure is as follows：
The diode of the Q1-metal-oxide-semiconductor R1-equalizing resistance D1~diodes of D3-first~the 3rd
10-cell equalizing protecting circuit
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As shown in figure 4, a kind of balanced fail-safe circuit of multi-string battery voltage detecting includes what is connected with anode
Metal-oxide-semiconductor Q1, the source electrode of the metal-oxide-semiconductor Q1 is connected with equalizing resistance R1 one end, the other end of the equalizing resistance R1 with it is balanced
One end of protection circuit 10 is connected, and the other end of cell equalizing protecting circuit 10 is connected with GND, the grid of the metal-oxide-semiconductor Q1
It is connected with control end.
Metal-oxide-semiconductor Q1 drain electrode directly connects to form the first series arm with anode；Metal-oxide-semiconductor Q1 grid and control end
Be joined directly together to form the second series arm, control end controls the conducting and shut-off of circuit by controlling metal-oxide-semiconductor Q1, realize for
The purpose of batteries equalizing voltage；Metal-oxide-semiconductor Q1 source electrode, equalizing resistance R1, cell equalizing protecting circuit 10, GND formation the 3rd
Series arm.
The cell equalizing protecting circuit 10 includes being arranged at being sequentially connected in series between equalizing resistance R1 and GND and connecting
The multiple diodes of direction identical, the positive pole close to equalizing resistance R1 diode is connected with the equalizing resistance R1 other end, leans on
The negative pole of the diode of nearly GND is connected with GND.
Diode could be arranged to 1,2,3,4 etc., sets 1,2,4 etc. and also can solve the problem that balanced mistake
The situation that caused battery is damaged by emptying during effect occurs, it is contemplated that the cost and performance of balanced fail-safe circuit,
Diode is set to 3 and make it that protective value of the present utility model is optimal and with low cost.
Specifically, the diode is set to 3, respectively the first diode D1, the second diode D2 and the three or two
Pole pipe D3, the first diode D1 positive pole connection equalizing resistance the R1 other end, the first diode D1 negative pole connection the
Two diode D2 positive pole, the negative pole of the second diode D2 connects the 3rd diode D3 positive pole, the 3rd diode
D3 negative pole is connected with GND.
The utility model when in use, can coordinate to be used with software of the prior art.With reference to existing
Operation principle of the present utility model is described software in technology, it must be noted that be：Match with the utility model
The software of conjunction is not innovative part of the present utility model, nor part of the present utility model.
As shown in Figure 4,5, when control end sends Continuity signal, metal-oxide-semiconductor Q1 is open-minded, and metal-oxide-semiconductor is passed sequentially through from anode
Q1, equalizing resistance R1, cell equalizing protecting circuit 10 and GND, equilibrium start.The electricity of battery is consumed in equalizing resistance
On R1, when cell voltage reaches requirement, control end sends cut-off signals shut-off metal-oxide-semiconductor Q1, and equilibrium terminates.
As shown in figure 5, when metal-oxide-semiconductor Q1 failures make circuit be constantly in the malfunction of conducting, due to balance protection electricity
The minimum conduction voltage drop on road 10 is 2.1V, therefore the voltage of battery can be limited in the state for being not less than 2.1V, be effectively prevented from
By emptying, impaired phenomenon battery occurs.
As shown in fig. 6, when there is battery by reversal connection, because the protection diode inside metal-oxide-semiconductor Q1 is the pole of voltage stabilizing two
The presence of pipe can directly form loop, but be due to the one-way conduction performance of cell equalizing protecting circuit 10, can directly block from battery
Negative pole is to the loop of anode so that the electricity of battery will not be run out of and is vented by equalizing resistance R1.
Not only cost is very cheap for this balanced fail-safe circuit, implements and is easier, and performance is highly stable,
The situation that caused battery is damaged by emptying when efficiently solving balanced failure occurs.
Claims (3)
1. a kind of balanced fail-safe circuit of multi-string battery voltage detecting, including the metal-oxide-semiconductor (Q1) connected with anode, its
It is characterised by：The source electrode of the metal-oxide-semiconductor (Q1) is connected with one end of equalizing resistance (R1), the other end of the equalizing resistance (R1)
It is connected with one end of cell equalizing protecting circuit (10), cell equalizing protecting circuit (10) other end is connected with GND, the MOS
The grid of pipe (Q1) is connected with control end.
2. a kind of balanced fail-safe circuit of multi-string battery voltage detecting as claimed in claim 1, it is characterised in that：It is described
Cell equalizing protecting circuit (10) includes being arranged at equalizing resistance (R1) being sequentially connected in series between GND and closure is identical
Multiple diodes, the positive pole of diode close to equalizing resistance (R1) is connected with the other end of equalizing resistance (R1), close electric
The negative pole of the diode of pond negative pole is connected with GND.
3. a kind of balanced fail-safe circuit of multi-string battery voltage detecting as claimed in claim 2, it is characterised in that：It is described
Diode is set to 3, respectively the first diode (D1), the second diode (D2) and the 3rd diode (D3), described
The other end of the positive pole connection equalizing resistance (R1) of one diode (D1), the negative pole of the first diode (D1) connects the second diode
(D2) positive pole, the negative pole of second diode (D2) connects the positive pole of the 3rd diode (D3), the 3rd diode
(D3) negative pole is connected with GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446852.4U CN206451783U (en) | 2016-12-27 | 2016-12-27 | A kind of balanced fail-safe circuit of multi-string battery voltage detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621446852.4U CN206451783U (en) | 2016-12-27 | 2016-12-27 | A kind of balanced fail-safe circuit of multi-string battery voltage detecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451783U true CN206451783U (en) | 2017-08-29 |
Family
ID=59674603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621446852.4U Active CN206451783U (en) | 2016-12-27 | 2016-12-27 | A kind of balanced fail-safe circuit of multi-string battery voltage detecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206451783U (en) |
-
2016
- 2016-12-27 CN CN201621446852.4U patent/CN206451783U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 501, No. 8, No. 300, Changjiang Road, Yantai Economic and Technological Development Zone, Shandong Province Patentee after: LIGO (Shandong) New Energy Technology Co.,Ltd. Address before: 230088, building C2, Hefei University of science and technology, 800 Wangjiang West Road, Hefei hi tech Zone, Anhui 1-4, China Patentee before: ANHUI LIGOO NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yantai Yida Financial Leasing Co.,Ltd. Assignor: LIGO (Shandong) New Energy Technology Co.,Ltd. Contract record no.: X2020980008914 Denomination of utility model: A balanced failure protection circuit for multi series battery voltage detection Granted publication date: 20170829 License type: Exclusive License Record date: 20201208 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A balanced failure protection circuit for multi series battery voltage detection Effective date of registration: 20201209 Granted publication date: 20170829 Pledgee: Yantai Yida Financial Leasing Co.,Ltd. Pledgor: LIGO (Shandong) New Energy Technology Co.,Ltd. Registration number: Y2020980009062 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 265499 Room 501, No.8, No.300, Changjiang Road, Yantai Economic and Technological Development Zone, Shandong Province Patentee after: Ligao (Shandong) New Energy Technology Co.,Ltd. Address before: 265499 Room 501, No.8, No.300, Changjiang Road, Yantai Economic and Technological Development Zone, Shandong Province Patentee before: LIGO (Shandong) New Energy Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221111 Granted publication date: 20170829 Pledgee: Yantai Yida Financial Leasing Co.,Ltd. Pledgor: LIGO (Shandong) New Energy Technology Co.,Ltd. Registration number: Y2020980009062 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Yantai Yida Financial Leasing Co.,Ltd. Assignor: LIGO (Shandong) New Energy Technology Co.,Ltd. Contract record no.: X2020980008914 Date of cancellation: 20230512 |