CN210780216U - Zero-interruption automatic switching device for battery pack - Google Patents
Zero-interruption automatic switching device for battery pack Download PDFInfo
- Publication number
- CN210780216U CN210780216U CN201922243676.4U CN201922243676U CN210780216U CN 210780216 U CN210780216 U CN 210780216U CN 201922243676 U CN201922243676 U CN 201922243676U CN 210780216 U CN210780216 U CN 210780216U
- Authority
- CN
- China
- Prior art keywords
- field effect
- effect tube
- circuit
- battery
- battery pack
- 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.)
- Active
Links
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a zero-interruption automatic switching device for a battery pack, which is used for converting a plurality of independent input battery packs into one path for output, and comprises a battery voltage sampling circuit, a switching drive control circuit and a MOS (metal oxide semiconductor) tube main switching circuit, wherein the battery voltage sampling circuit is used for detecting the power supply voltage of each path of battery pack; and the switching drive control circuit is respectively connected with the battery voltage sampling circuit and the MOS tube main switching circuit and is used for controlling the MOS tube main switching circuit to act according to the power supply voltage information of each path of battery pack detected by the battery voltage sampling circuit and selecting one path of battery pack in the multiple paths of battery packs as output. The utility model provides a zero automatic switching control equipment that is interrupted of group battery switches the circuit all the way to electrified automatically, and zero clearance switches, and the outage can not appear in the load.
Description
Technical Field
The utility model relates to an energy storage battery group field especially discloses a zero automatic switching control equipment that is interrupted of group battery.
Background
The use of energy storage group battery, current conventional mode is that a group battery exports load alone and uses, and when this group battery electric quantity used up, when changing a set of group battery, the outage phenomenon can appear. Or an automatic switching device is often used to achieve automatic uninterrupted switching between the battery packs. However, in the prior art, isolation is generally achieved without isolation or through a diode or circuit switching is achieved through a relay, for example, several batteries are input simultaneously (parallel input of the batteries) or one battery is disconnected first and then the other battery is connected (for example, relay switching), and long or short breaks occur in the course of endurance.
Therefore, the existing automatic switching device has long or short interruption in the endurance process, which is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a zero automatic switching control equipment that is interrupted of group battery aims at solving the technical problem that automatic switching control equipment can appear or long or short be interrupted at the time of endurance.
The utility model provides a zero-interruption automatic switching device of a battery pack, which is used for converting a plurality of paths of independently input battery packs into one path for output, and comprises a battery voltage sampling circuit, a switching drive control circuit and an MOS tube main switching circuit,
the battery voltage sampling circuit is used for detecting the power supply voltage of each path of battery pack;
and the switching drive control circuit is respectively connected with the battery voltage sampling circuit and the MOS tube main switching circuit and is used for controlling the MOS tube main switching circuit to act according to the power supply voltage information of each path of battery pack detected by the battery voltage sampling circuit and selecting one path of battery pack in the multiple paths of battery packs as output.
Furthermore, the MOS tube main switching circuit comprises a plurality of groups of MOS tube switching unit circuits correspondingly connected with the battery packs of all the paths, and the plurality of groups of MOS tube switching unit circuits are correspondingly connected with the cathodes of the battery packs of all the paths.
Furthermore, the MOS tube switching unit circuit comprises a first field effect tube, a second field effect tube, a third field effect tube, a fourth field effect tube, a fifth field effect tube and a sixth field effect tube, wherein the source electrode of the first field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the first field effect tube is connected with the switching drive control circuit, the drain electrode of the first field effect tube is connected with the drain electrode of the second field effect tube, the source electrode of the second field effect tube is connected with the negative electrode output end of the battery, and the grid electrode of the second field effect tube is connected with the switching drive control circuit; the source electrode of the third field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the third field effect tube is connected with the switching drive control circuit, the drain electrode of the third field effect tube is connected with the drain electrode of the fourth field effect tube, the source electrode of the fourth field effect tube is connected with the output end of the negative electrode of the battery, and the grid electrode of the fourth field effect tube is connected with the switching drive control circuit; the source electrode of the fifth field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the fifth field effect tube is connected with the switching drive control circuit, the drain electrode of the fifth field effect tube is connected with the drain electrode of the sixth field effect tube, the source electrode of the sixth field effect tube is connected with the output end of the negative electrode of the battery, and the grid electrode of the sixth field effect tube is connected with the switching drive control circuit.
Furthermore, the first field effect transistor, the second field effect transistor, the third field effect transistor, the fourth field effect transistor, the fifth field effect transistor and the sixth field effect transistor are all N-channel enhancement type field effect transistors.
Further, the model of the N-channel enhancement mode field effect transistor is an STP15810 chip.
Further, the switching drive control circuit includes a controller and a switch drive line,
the switch driving circuit is respectively connected with the controller and the corresponding MOS tube switching unit circuit and is used for driving the corresponding MOS tube switching unit circuit to act under the control of the controller.
Further, the controller is a master control chip, and the model of the master control chip is STM32F103RCT 6.
Further, the switch driving circuit comprises a triode, a first resistor and a second resistor, the base of the triode is connected with the controller through the first resistor, the collector of the triode is connected with the MOS tube switching unit circuit, the emitter of the triode is grounded, one end of the second resistor is connected with the base of the triode, and the other end of the second resistor is grounded.
Furthermore, the battery voltage sampling circuit comprises an operational amplifier, wherein the non-inverting input end of the operational amplifier is connected with the anode of each battery pack, the inverting input end of the operational amplifier is connected with the cathode of each battery pack, and the output end of the operational amplifier is connected with the switching drive control circuit.
Furthermore, the zero-interruption automatic switching device of the battery pack also comprises a GPS module,
the GPS module is connected with the controller and is used for remotely transmitting the working condition information of each battery pack to the background under the control of the controller; and receiving a control instruction transmitted by the background in a wireless way.
The utility model discloses the beneficial effect who gains does:
the utility model provides a zero-interruption automatic switching device for battery packs, which adopts a battery voltage sampling circuit, a switching drive control circuit and an MOS tube main switching circuit, realizes mutual isolation among multiple battery packs by controlling the switches of MOS tube groups, and only one path of external output power supply is provided at the same time; the voltage condition of each battery pack is automatically detected, and a certain battery pack is automatically selected to supply power; the battery pack switching method has the advantages that one way to be started is prepared through short-time pre-connection, then the other way with the exhausted electric quantity is cut off, so that zero-interruption switching is realized, the battery voltage is monitored in real time in the process, and the phenomenon of mutual charging between two ways of battery packs is prevented through one-way starting. The utility model provides a zero automatic switching control equipment that is interrupted of group battery switches the circuit all the way to electrified automatically, and zero clearance switches, and the outage can not appear in the load.
Drawings
Fig. 1 is a functional block diagram of a first embodiment of a zero-interruption automatic switching device for a battery pack according to the present invention;
fig. 2 is an application schematic diagram of the zero-interruption automatic switching device for the battery pack provided by the present invention;
fig. 3 is a functional block diagram of a zero-interruption automatic switching device for a battery pack according to a second embodiment of the present invention;
FIG. 4 is a circuit diagram of the MOS transistor switching unit circuit shown in FIG. 3;
FIG. 5 is a circuit diagram of one embodiment of the controller of FIG. 3;
FIG. 6 is a circuit diagram of one embodiment of the switch driving circuit of FIG. 3;
FIG. 7 is a circuit diagram of an embodiment of the battery voltage sampling circuit of FIG. 3;
fig. 8 is a functional block diagram of a third embodiment of the zero-interruption automatic switching device for a battery pack according to the present invention.
The reference numbers illustrate:
10. a battery voltage sampling circuit; 20. a switching drive control circuit; 30. a MOS tube main switching circuit; 21. a controller; 22. a switch drive circuit; 31. an MOS tube switching unit circuit; 40. and a GPS module.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Please see fig. 1 and fig. 2, fig. 1 is a functional module block diagram of a first embodiment of the zero-interruption automatic switching device for a battery pack, which is used to convert an independently inputted multi-path battery pack into one path for outputting, the zero-interruption automatic switching device for a battery pack comprises a battery voltage sampling circuit 10, a switching driving control circuit 20 and a main switching circuit 30 of a MOS Transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, Metal-Oxide Semiconductor Field-Effect Transistor), the battery voltage sampling circuit 10 is used to detect the power supply voltage of each path of battery pack; and the switching drive control circuit 20 is respectively connected with the battery voltage sampling circuit 10 and the MOS transistor main switching circuit 30, and is configured to control the MOS transistor main switching circuit 30 to operate according to the power supply voltage information of each battery pack detected by the battery voltage sampling circuit 10, and select one battery pack of the multiple battery packs as output.
In the above circuit structure, please refer to fig. 1 to 8, in the zero-interruption automatic switching device for a battery pack according to the present embodiment, the MOS transistor main switching circuit 30 includes a plurality of MOS transistor switching unit circuits 31 correspondingly connected to each path of battery pack, and the plurality of MOS transistor switching unit circuits 31 are correspondingly connected to the negative electrodes of each path of battery pack. The MOS transistor switching unit circuit 31 includes a first field effect transistor Q1, a second field effect transistor Q2, a third field effect transistor Q3, a fourth field effect transistor Q4, a fifth field effect transistor Q5 and a sixth field effect transistor Q6, wherein a source electrode of the first field effect transistor Q1 is connected to a negative electrode of the corresponding battery pack, a gate electrode of the first field effect transistor Q1 is connected to the switching drive control circuit 20, a drain electrode of the first field effect transistor Q1 is connected to a drain electrode of the second field effect transistor Q2, a source electrode of the second field effect transistor Q2 is connected to a battery negative electrode output terminal BAT-, and a gate electrode of the second field effect transistor Q2 is connected to the switching drive control circuit 20; the source electrode of the third field effect transistor Q3 is connected with the negative electrode of the corresponding battery pack, the grid electrode of the third field effect transistor Q3 is connected with the switching drive control circuit 20, the drain electrode of the third field effect transistor Q3 is connected with the drain electrode of the fourth field effect transistor Q4, the source electrode of the fourth field effect transistor Q4 is connected with the battery negative electrode output terminal BAT-, and the grid electrode of the fourth field effect transistor Q4 is connected with the switching drive control circuit 20; the source electrode of the fifth field-effect tube Q5 is connected with the negative electrode of the corresponding battery pack, the grid electrode of the fifth field-effect tube Q5 is connected with the switching drive control circuit 20, the drain electrode of the fifth field-effect tube Q5 is connected with the drain electrode of the sixth field-effect tube Q6, the source electrode of the sixth field-effect tube Q6 is connected with the battery negative electrode output terminal BAT-, and the grid electrode of the sixth field-effect tube Q6 is connected with the switching drive control circuit 20. In this embodiment, the first fet Q1, the second fet Q2, the third fet Q3, the fourth fet Q4, the fifth fet Q5, and the sixth fet Q6 are all N-channel enhancement mode fets. The model of the N-channel enhanced field effect transistor is STP15810 chip. The switching driving control circuit 20 includes a controller 21 and a switch driving circuit 22, and the switch driving circuit 22 is respectively connected to the controller 21 and the corresponding MOS transistor switching unit circuit 31, and is configured to drive the corresponding MOS transistor switching unit circuit 31 to operate under the control of the controller 21. In this embodiment, please refer to fig. 5, the controller 21 adopts a main control chip U1, and the model of the main control chip U1 adopts STM32F103RCT 6. As shown in fig. 6, the switch driving circuit 22 includes a transistor Q1, a first resistor R5, and a second resistor R27, wherein a base of the transistor Q1 is connected to the controller 21 through the first resistor R5, a collector of the transistor Q1 is connected to the MOS transistor switching unit circuit 31, an emitter of the transistor Q1 is grounded, one end of the second resistor R27 is connected to the base of the transistor Q1, and the other end of the second resistor R27 is grounded. The model of the triode Q1 is SS 8050. Referring to fig. 7, the battery voltage sampling circuit 10 includes an operational amplifier U3A, a non-inverting input terminal of the operational amplifier U3A is connected to a positive electrode of each battery pack, an inverting input terminal of the operational amplifier U3A is connected to a negative electrode of each battery pack, and an output terminal of the operational amplifier U3A is connected to the switching drive control circuit 20.
Further, please see fig. 8, fig. 8 is a functional module block diagram of a third embodiment of the zero-interruption automatic switching device for a battery pack, which further includes a GPS (Global positioning system) module 40, wherein the GPS module 40 is connected to the controller 21 and is configured to remotely transmit the operating condition information of each battery pack to the background under the control of the controller 21; and receiving a control instruction transmitted by the background in a wireless manner, and upgrading the module software in a wireless manner. The controller 21 may use a bluetooth interface, a 485 interface, a 232 interface, and a CAN interface to communicate with the outside.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A zero-interruption automatic switching device of a battery pack is used for converting a plurality of paths of independently input battery packs into one path for output, and is characterized by comprising a battery voltage sampling circuit (10), a switching drive control circuit (20) and an MOS tube main switching circuit (30), wherein,
the battery voltage sampling circuit (10) is used for detecting the power supply voltage of each path of battery pack;
the switching drive control circuit (20) is respectively connected with the battery voltage sampling circuit (10) and the MOS tube main switching circuit (30) and is used for controlling the MOS tube main switching circuit (30) to act according to the power supply voltage information of each path of battery pack detected by the battery voltage sampling circuit (10) and selecting one path of battery pack in the multi-path battery packs as output.
2. The zero-interruption automatic switching device of a battery pack according to claim 1,
the MOS tube main switching circuit (30) comprises a plurality of groups of MOS tube switching unit circuits (31) correspondingly connected with the battery packs of all the paths, and the plurality of groups of MOS tube switching unit circuits (31) are correspondingly connected with the cathodes of the battery packs of all the paths.
3. The zero-interruption automatic switching device of a battery pack according to claim 2,
the MOS tube switching unit circuit (31) comprises a first field effect tube, a second field effect tube, a third field effect tube, a fourth field effect tube, a fifth field effect tube and a sixth field effect tube, wherein the source electrode of the first field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the first field effect tube is connected with the switching drive control circuit (20), the drain electrode of the first field effect tube is connected with the drain electrode of the second field effect tube, the source electrode of the second field effect tube is connected with the output end of the negative electrode of the battery, and the grid electrode of the second field effect tube is connected with the switching drive control circuit (20); the source electrode of the third field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the third field effect tube is connected with the switching drive control circuit (20), the drain electrode of the third field effect tube is connected with the drain electrode of the fourth field effect tube, the source electrode of the fourth field effect tube is connected with the output end of the negative electrode of the battery, and the grid electrode of the fourth field effect tube is connected with the switching drive control circuit (20); the source electrode of the fifth field effect tube is connected with the negative electrode of the corresponding battery pack, the grid electrode of the fifth field effect tube is connected with the switching drive control circuit (20), the drain electrode of the fifth field effect tube is connected with the drain electrode of the sixth field effect tube, the source electrode of the sixth field effect tube is connected with the output end of the negative electrode of the battery, and the grid electrode of the sixth field effect tube is connected with the switching drive control circuit (20).
4. The zero-interruption automatic switching device of a battery pack according to claim 3,
the first field effect tube, the second field effect tube, the third field effect tube, the fourth field effect tube, the fifth field effect tube and the sixth field effect tube are all N-channel enhanced field effect tubes.
5. The zero-interruption automatic switching device for battery packs according to claim 4,
the model of the N-channel enhanced field effect transistor is STP15810 chip.
6. The zero-interruption automatic switching device of a battery pack according to claim 2,
the switching drive control circuit (20) comprises a controller (21) and a switch drive line (22),
the switch driving circuit (22) is respectively connected with the controller (21) and the corresponding MOS tube switching unit circuit (31) and is used for driving the corresponding MOS tube switching unit circuit (31) to act under the control of the controller (21).
7. The zero-interruption automatic switching device for battery packs according to claim 6,
the controller (21) is a main control chip, and the model of the main control chip is STM32F103RCT 6.
8. The zero-interruption automatic switching device for battery packs according to claim 6,
the switch driving circuit (22) comprises a triode, a first resistor and a second resistor, the base of the triode is connected with the controller (21) through the first resistor, the collector of the triode is connected with the MOS tube switching unit circuit (31), the emitting electrode of the triode is grounded, one end of the second resistor is connected with the base of the triode, and the other end of the second resistor is grounded.
9. The zero-interruption automatic switching device of a battery pack according to claim 1,
the battery voltage sampling circuit (10) comprises an operational amplifier, the in-phase input end of the operational amplifier is connected with the positive electrode of each battery pack, the reverse phase input end of the operational amplifier is connected with the negative electrode of each battery pack, and the output end of the operational amplifier is connected with the switching drive control circuit (20).
10. The zero-interruption automatic switching device for battery packs according to claim 6,
the zero-interruption automatic switching device of the battery pack also comprises a GPS module (40),
the GPS module (40) is connected with the controller (21) and is used for remotely transmitting the working condition information of each battery pack to a background under the control of the controller (21); and receiving the control instruction transmitted by the background in a wireless way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243676.4U CN210780216U (en) | 2019-12-13 | 2019-12-13 | Zero-interruption automatic switching device for battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243676.4U CN210780216U (en) | 2019-12-13 | 2019-12-13 | Zero-interruption automatic switching device for battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210780216U true CN210780216U (en) | 2020-06-16 |
Family
ID=71049509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922243676.4U Active CN210780216U (en) | 2019-12-13 | 2019-12-13 | Zero-interruption automatic switching device for battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210780216U (en) |
-
2019
- 2019-12-13 CN CN201922243676.4U patent/CN210780216U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101539693B1 (en) | Apparatus for waking up multi-bms | |
| WO2017118433A1 (en) | Battery charging/discharging method and circuit | |
| CN110994744A (en) | Multi-battery charging and discharging control device and system | |
| CN107968641B (en) | Load switch circuit, battery pack and multi-power-supply system | |
| CN101897100A (en) | Arrangement and approach for coupling power supplies using controlled switching techniques | |
| JP2022190171A (en) | Nmos switch driving circuit and power supply device | |
| CN108400780B (en) | Power semiconductor device driving device and system with data acquisition function | |
| CN210780216U (en) | Zero-interruption automatic switching device for battery pack | |
| CN211405587U (en) | Automatic switching circuit for lithium battery power supply | |
| CN201063533Y (en) | Overcurrent self-locking bridge type driving circuit | |
| CN101420123B (en) | Solar energy controller preventing reverse connection of accumulator | |
| CN105634057A (en) | Battery, mobile terminal and battery control method | |
| CN211830247U (en) | Multi-battery charging and discharging control device and system | |
| CN105591461B (en) | Automatic storage battery switching system of communication unit on power transmission line tower | |
| CN210775808U (en) | Positive and negative connection detection circuit of battery and electronic equipment with charging function | |
| CN210273883U (en) | Electronic motor winding change-over switch and system | |
| CN112599872A (en) | Battery management system, battery pack and electric device | |
| CN202602356U (en) | A power supply switching device with double DC inputs | |
| CN111463853A (en) | Power supply circuit and robot apparatus | |
| CN211127763U (en) | NMOS switch drive circuit and power supply device | |
| CN215646346U (en) | Low-power consumption power supply switching circuit and electronic equipment | |
| CN216721003U (en) | Multi-power supply switching circuit and electronic equipment | |
| CN217984652U (en) | Automatic power supply switching circuit | |
| CN105449742A (en) | Power supply polarity switching circuit and device | |
| CN216721004U (en) | Multi-power supply switching circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |