CN210327075U - Battery charging and discharging circuit breaker circuit - Google Patents
Battery charging and discharging circuit breaker circuit Download PDFInfo
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- CN210327075U CN210327075U CN201921269769.8U CN201921269769U CN210327075U CN 210327075 U CN210327075 U CN 210327075U CN 201921269769 U CN201921269769 U CN 201921269769U CN 210327075 U CN210327075 U CN 210327075U
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- pole
- circuit
- battery
- mos switch
- battery charging
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses battery charge-discharge circuit breaker switch circuit includes: the S pole of the MOS switch tube Q6 is connected with the input end of the charger, the S pole of the MOS switch tube Q7 is connected with the battery, and the Q6 is connected with the D pole of the Q7; the Q5 is a driving triode, the D pole of the driving triode is connected with the G poles of Q6 and Q7, the S pole of Q5 is grounded, the G pole of Q5 is connected to the controller, and the controller controls Q6 and Q7 to be turned off. Through the battery charge and discharge circuit breaker switch circuit in this application, realized battery charging fire hazard power-off protection, the isolation of the bad battery unit of new energy automobile group battery, the access of new group battery etc..
Description
Technical Field
The application relates to the technical field of circuit control, in particular to a battery charging and discharging circuit breaker circuit.
Background
China is a country with huge electric bicycle holding capacity and production capacity, the safety problem of the electric bicycle becomes a social problem which needs to be solved urgently, and the new energy automobile is a key development industry of the country. The problems of fire caused by charging and discharging of the battery, spontaneous combustion of the new energy automobile, battery pack isolation of the new energy automobile and the like are all problems which need to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present application provides a battery charging and discharging disconnection switch circuit, including:
the MOS switch tube group comprises at least two MOS switch tubes which are connected in series; one end of the MOS switch tube group is connected with the input end of the charger, and the other end of the MOS switch tube group is connected to the battery as the output end;
the driving triode group is at least provided with one driving triode; the same end of the drive triode is connected with a control circuit; the control circuit is used for detecting circuit data;
and the G pole of each MOS switching tube is connected to one driving triode.
Further, the MOS switch tube group includes two MOS switch tubes connected in series, including:
a first MOS switch tube Q6, the S pole of which is connected with the input end of the charger;
a second MOS switch Q7, the S pole of which is connected to the battery;
the D poles of the first MOS switch tube Q6 and the second MOS switch tube Q7 are connected;
further, the driving transistor group includes a driving transistor Q5, the S-pole of which is grounded, and the G-pole of Q5 is connected to the control circuit.
Furthermore, the driving triode group comprises two driving triodes, the S pole of each driving triode is grounded, and the G pole of each driving triode is connected to the control circuit;
the D pole of a driving triode is connected with the G pole of an MOS switching tube in series.
Further, the battery charging and discharging disconnection switching circuit further includes:
several configuration resistors are connected in series or in parallel on the circuit.
Further, the D pole of each MOS switch tube is connected with a resistor in series and grounded.
Further, the G pole of each MOS switch tube is connected with the S pole through a resistor.
Furthermore, the G pole of each MOS switch tube is connected with the D pole of the driving triode through a resistor.
Furthermore, the G pole of each driving triode is connected with a resistor in series and then grounded, and is connected with a control circuit in series after being connected with another resistor.
The application of the battery charging and discharging circuit breaker is to connect the battery charging and discharging circuit breaker with each battery pack.
Through the battery charge and discharge circuit breaker switch circuit in this application, realized battery charging fire hazard power-off protection, the isolation of the bad battery unit of new energy automobile group battery, the access of new group battery etc..
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a circuit diagram according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of a module according to a second embodiment of the present disclosure;
fig. 3 is a circuit diagram provided in the second embodiment of the present application (a) (b).
Detailed Description
In order to make the purpose, features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical scheme of the application is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
The external circuit is used as a control circuit, the circuit can be detected in real time by using the existing controller, batteries can be conveniently combined and managed, for example, battery pack units in a new energy automobile can be managed, a plurality of redundant battery units are added in a battery pack connected in series or in parallel, and the redundant battery units are disconnected with a working battery pack through the switching circuit in the patent; when one battery unit in the working battery pack fails, the battery unit can be disconnected from the circuit through the switching circuit, and meanwhile, a group of standby battery packs are connected, so that the battery can be replaced by the minimum unit group, and the failure detection is completed by an external detection circuit.
Meanwhile, by utilizing the property of the circuit, a management mechanism or a user can clearly know the performance and the running condition of the battery, and the accurate management of the battery is realized.
As a specific example, the simplest embodiment shown in fig. 1 includes two MOS switch transistors and a driving transistor.
The circuit connection relationship diagram in this embodiment:
the charger input end is connected from the S pin of the MOS switch tube Q7, and the battery end input end is connected from the S pin of the MOS switch tube Q6. The pins D of the MOS switching tubes Q6 and Q7 are connected. The G pins of the MOS switch transistors Q6 and Q7 are connected to the D pin of the driving transistor Q5. The S pin of the driving transistor Q5 is connected to ground. Pin G of the driving transistor Q5 is connected to the control circuit.
In the circuit, a plurality of resistors are connected in series or in parallel on the circuit, and the specific positions are shown in the figure.
The working process is as follows: when the controller inputs high level from the POWER _ CON connection of the control circuit, the pin D and the pin S of the driving triode Q5 are conducted and grounded, the MOS switch transistors Q6 and Q7 are driven to be conducted, at this time, the battery is connected with the charging circuit, and the battery enters a charging state.
When the controller inputs low level from the POWER _ CON connection of the control circuit, the pin D and the pin S of the driving triode Q5 are disconnected, the MOS switch transistors Q6 and Q7 are forced to be cut off, at this time, the battery and the charging circuit are disconnected, and the battery is disconnected from the external circuit; the same is true for the corresponding battery discharge.
In the present embodiment, the MOS switch Q7 at the input end of the charger and the MOS switch Q6 at the battery end work in a linkage manner, and they are turned on or turned off simultaneously.
This circuit has realized freely inserting and turn-off between two powers, has realized a two-way turn-off and switch-on, can realize controlling the charge-discharge of charger through the controller through this circuit, simultaneously, because the controller possesses remote control's function for this scheme has possessed remote control's aspect.
As a specific example, the example shown in fig. 2 includes two MOS switch transistors and two driving transistors, one driving transistor corresponds to each MOS switch transistor, and other principles and connection manners are the same as those in example 1.
Fig. 3(a) shows a circuit left side including a driving transistor, and (b) shows a circuit right side including a MOS switching transistor.
The circuit has small volume and flexible control, can be integrated in a battery pack, and can be matched with a control circuit to realize the charging management and the cut-off of a charging circuit of a battery; and the fire protection, the battery pack performance test and the like are carried out in cooperation with the controller.
The controller can detect temperature, current, voltage and the like, and has good effects on timely protection and early warning of fire.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (9)
1. A battery charging and discharging circuit breaker switch circuit is characterized in that,
the battery charge and discharge circuit breaker switch circuit includes:
the MOS switch tube group comprises at least two MOS switch tubes which are connected in series; one end of the MOS switch tube group is connected to the input end of the charger, and the other end of the MOS switch tube group is connected to the battery as the output end;
the driving triode group is at least provided with one driving triode; the same end of the driving triode is connected with a control circuit; the control circuit is used for detecting circuit data;
and the G pole of each MOS switching tube is connected to one driving triode.
2. The battery charging and discharging disconnection switching circuit according to claim 1,
MOS switch nest of tubes includes the MOS switch tube of two series connections, includes:
a first MOS switch tube Q6, the S pole of which is connected with the input end of the charger;
a second MOS switch Q7, the S pole of which is connected to the battery;
the D poles of the first MOS switch Q6 and the second MOS switch Q7 are connected.
3. The battery charging and discharging disconnection switching circuit according to claim 2,
the driving transistor group comprises a driving transistor Q5, the S pole of the driving transistor Q5 is grounded, and the G pole of the driving transistor Q5 is connected to the control circuit.
4. The battery charging and discharging disconnection switching circuit according to claim 2,
the driving triode group comprises two driving triodes, the S pole of each driving triode is grounded, and the G pole of each driving triode is connected to the control circuit;
the D pole of one driving triode is connected with the G pole of one MOS switching tube in series.
5. The battery charging and discharging disconnection switching circuit according to any one of claims 1 to 4,
the battery charge and discharge disconnection switching circuit further comprises:
several configuration resistors are connected in series or in parallel on the circuit.
6. The battery charging and discharging disconnection switching circuit of claim 5,
the D pole of each MOS switch tube is connected with a resistor in series and grounded.
7. The battery charging and discharging disconnection switching circuit of claim 6,
and the G pole of each MOS switching tube is connected with the S pole through a resistor.
8. The battery charging and discharging disconnection switching circuit of claim 7,
and the G pole of each MOS switching tube is connected with the D pole of the driving triode through a resistor.
9. The battery charging and discharging disconnection switching circuit of claim 8,
and the G pole of each driving triode is grounded after being connected with a resistor in series, and is connected with the control circuit after being connected with another resistor in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269769.8U CN210327075U (en) | 2019-08-07 | 2019-08-07 | Battery charging and discharging circuit breaker circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269769.8U CN210327075U (en) | 2019-08-07 | 2019-08-07 | Battery charging and discharging circuit breaker circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210327075U true CN210327075U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921269769.8U Expired - Fee Related CN210327075U (en) | 2019-08-07 | 2019-08-07 | Battery charging and discharging circuit breaker circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210327075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350631A (en) * | 2019-08-07 | 2019-10-18 | 浙江中智海通信科技有限公司 | Battery charging and discharging disconnect switch circuit and its application |
| WO2022117052A1 (en) * | 2020-12-04 | 2022-06-09 | 华为技术有限公司 | Wireless charging circuit and system, electronic device, and control method |
-
2019
- 2019-08-07 CN CN201921269769.8U patent/CN210327075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350631A (en) * | 2019-08-07 | 2019-10-18 | 浙江中智海通信科技有限公司 | Battery charging and discharging disconnect switch circuit and its application |
| WO2022117052A1 (en) * | 2020-12-04 | 2022-06-09 | 华为技术有限公司 | Wireless charging circuit and system, electronic device, and control method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |