CN220874252U - Boost charging device and charging system - Google Patents
Boost charging device and charging system Download PDFInfo
- Publication number
- CN220874252U CN220874252U CN202322608883.1U CN202322608883U CN220874252U CN 220874252 U CN220874252 U CN 220874252U CN 202322608883 U CN202322608883 U CN 202322608883U CN 220874252 U CN220874252 U CN 220874252U
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- 238000004804 winding Methods 0.000 claims abstract description 27
- 238000004146 energy storage Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a boost charging device and a charging system, wherein the boost charging device comprises an external power supply module, a boost switching circuit, a three-phase inverter and a three-phase alternating current motor; the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence; the boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting. The boost switching circuit is connected into each phase winding of the three-phase alternating current motor to perform boost control, the low-power charging is connected into one phase or two phases of the winding, the high-power charging is connected into three phases of the winding, and the power battery is more accurately subjected to boost control.
Description
Technical Field
The utility model relates to a boost charging field, concretely relates to boost charging device and charging system.
Background
In the prior art, the power battery is charged through the motor three-phase coil inductor+1 external inductor, so that the boosting function is realized, relevant parameters are fixed by the motor three-phase coil inductor+1 external inductor, and three groups of coils participate in a boosting scheme at the same time, so that the high-precision control cannot be realized in the boosting process.
The above problems are currently in need of solution.
Disclosure of utility model
The utility model aims at providing a charging device and charging system boost.
In order to solve the technical problem, the utility model provides a boost charging device, include:
the power supply comprises an external power supply module, a boost switching circuit, a three-phase inverter and a three-phase alternating current motor;
the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence;
The boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting.
Further, the boost switching circuit comprises a first inductor L1, a first switch k1, a second inductor L2, a second switch k2, a third inductor L3 and a third switch k3;
One end of the first inductor L1 is electrically connected to the positive electrode of the external power supply through a first change-over switch k1, and the other end of the first inductor L1 is electrically connected to a winding of a first phase of the three-phase alternating current motor;
One end of the second inductor L2 is electrically connected to the positive electrode of the external power supply through a second change-over switch k2, and the other end of the second inductor L2 is electrically connected to a winding of a second phase of the three-phase alternating current motor;
One end of the third inductor L3 is electrically connected to the positive electrode of the external power supply through a third change-over switch k3, and the other end of the third inductor L3 is electrically connected to a winding of a third phase of the three-phase alternating current motor.
Further, a fourth switch k4 and a seventh switch k7 are respectively disposed at two ends of the external power module.
Further, the output end of the three-phase inverter is respectively connected in series with a fifth change-over switch k5 and a sixth change-over switch k6.
Further, the boost charging device comprises an inductive energy storage mode and a boost mode.
Further, the boost charging device further comprises a control module;
The control module is suitable for controlling the opening and closing states of the first to seventh switching switches k1 to k 7.
Further, the control module is adapted to close the fourth switch k4 and the seventh switch k7, and open the fifth switch k5 and the sixth switch k6, so as to enable the boost charging device to enter the inductive energy storage mode.
Further, the control module is adapted to close the fourth switch k4, the fifth switch k5, the sixth switch k6 and the seventh switch k7, and open the fifth switch k5 and the sixth switch k6, so that the boost charging device enters the boost mode.
Further, the control module is further adapted to control any one or more of the first switch k1, the second switch k2 and the third switch k3 to be closed, so as to perform accurate boosting.
The invention also provides a charging system which comprises a power battery and the boosting charging device;
the boosting charging device is electrically connected with the power battery and is suitable for charging the power battery.
The boost charging device comprises an external power supply module, a boost switching circuit, a three-phase inverter and a three-phase alternating current motor; the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence; the boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting. The boost switching circuit is connected into each phase winding of the three-phase alternating current motor to perform boost control, the low-power charging is connected into one phase or two phases of the winding, the high-power charging is connected into three phases of the winding, and the power battery is more accurately subjected to boost control.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic block diagram of a boost charging device according to an embodiment of the present utility model.
Fig. 2 is a current flow chart of the boost charging device in the inductive energy storage mode according to the embodiment of the utility model.
Fig. 3 is a current flow chart of the boost charging device in the boost mode according to the embodiment of the utility model.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
Referring to fig. 1-3, an embodiment of a boost charging device is provided, which includes: the power supply comprises an external power supply module, a boost switching circuit, a three-phase inverter and a three-phase alternating current motor; the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence; the boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting. The boost switching circuit is connected into each phase winding of the three-phase alternating current motor to perform boost control, the low-power charging is connected into one phase or two phases of the winding, the high-power charging is connected into three phases of the winding, and the power battery is more accurately subjected to boost control.
Specifically, the boost switching circuit includes a first inductor L1, a first switch k1, a second inductor L2, a second switch k2, a third inductor L3, and a third switch k3; one end of the first inductor L1 is electrically connected to the positive electrode of the external power supply through a first change-over switch k1, and the other end of the first inductor L1 is electrically connected to a winding of a first phase of the three-phase alternating current motor; one end of the second inductor L2 is electrically connected to the positive electrode of the external power supply through a second change-over switch k2, and the other end of the second inductor L2 is electrically connected to a winding of a second phase of the three-phase alternating current motor; one end of the third inductor L3 is electrically connected to the positive electrode of the external power supply through a third change-over switch k3, and the other end of the third inductor L3 is electrically connected to a winding of a third phase of the three-phase alternating current motor.
In the boosting process of the power battery, any one, two or three of the first switch k1, the second switch k2 and the third switch k3 can be selectively closed, so that the required power requirement is met, and the battery is more friendly to charge in a high SOC state.
In this embodiment, the two ends of the external power module are respectively provided with a fourth switch k4 and a seventh switch k7. The output end of the three-phase inverter is respectively connected with a fifth change-over switch k5 and a sixth change-over switch k6 in series.
The boost charging device comprises an inductive energy storage mode and a boost mode.
In this embodiment, the boost charging device further includes a control module; the control module is suitable for controlling the opening and closing states of the first to seventh switching switches k1 to k 7.
Specifically, the control module is adapted to close the fourth switch k4 and the seventh switch k7, and open the fifth switch k5 and the sixth switch k6, so as to put the boost charging device into the inductive energy storage mode.
The control module is suitable for closing the fourth switch k4, the fifth switch k5, the sixth switch k6 and the seventh switch k7, and opening the fifth switch k5 and the sixth switch k6, so that the boost charging device enters a boost mode.
It should be noted that, the control module is further adapted to control any one or more of the first switch k1, the second switch k2, and the third switch k3 to be closed, so as to perform accurate boost.
The embodiment also provides a charging system, which comprises a power battery and the boosting charging device; the boosting charging device is electrically connected with the power battery and is suitable for charging the power battery.
In summary, the present utility model provides a boost charging device and a charging system, wherein the boost charging device includes an external power module, a boost switching circuit, a three-phase inverter, and a three-phase ac motor; the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence; the boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting. The boost switching circuit is connected into each phase winding of the three-phase alternating current motor to perform boost control, the low-power charging is connected into one phase or two phases of the winding, the high-power charging is connected into three phases of the winding, and the power battery is more accurately subjected to boost control.
The components (components not illustrating the specific structure) selected in the present application are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software program related to the application is the prior art, and the application does not relate to any improvement on the software program.
In the description of the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in this application will be understood by those of ordinary skill in the art in a specific context.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present invention as a teaching, the worker can make various changes and modifications without departing from the scope of the technical spirit of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A boost charging device, comprising:
the power supply comprises an external power supply module, a boost switching circuit, a three-phase inverter and a three-phase alternating current motor;
the external power supply module, the boost switching circuit, the three-phase alternating current motor and the three-phase inverter are electrically connected in sequence;
The boost switching circuit is adapted to select each phase winding of the three-phase alternating current motor for boosting.
2. The boost charging device of claim 1, wherein,
The boost switching circuit comprises a first inductor L1, a first switching switch k1, a second inductor L2, a second switching switch k2, a third inductor L3 and a third switching switch k3;
One end of the first inductor L1 is electrically connected to the positive electrode of the external power supply through a first change-over switch k1, and the other end of the first inductor L1 is electrically connected to a winding of a first phase of the three-phase alternating current motor;
One end of the second inductor L2 is electrically connected to the positive electrode of the external power supply through a second change-over switch k2, and the other end of the second inductor L2 is electrically connected to a winding of a second phase of the three-phase alternating current motor;
One end of the third inductor L3 is electrically connected to the positive electrode of the external power supply through a third change-over switch k3, and the other end of the third inductor L3 is electrically connected to a winding of a third phase of the three-phase alternating current motor.
3. The boost charging device of claim 2, wherein,
The two ends of the external power supply module are respectively provided with a fourth change-over switch k4 and a seventh change-over switch k7.
4. The boost charging device of claim 3,
The output end of the three-phase inverter is respectively connected with a fifth change-over switch k5 and a sixth change-over switch k6 in series.
5. The boost charging device of claim 4, wherein,
The boost charging device comprises an inductive energy storage mode and a boost mode.
6. The boost charging device of claim 5, wherein,
The boost charging device further comprises a control module;
The control module is suitable for controlling the opening and closing states of the first to seventh switching switches k1 to k 7.
7. The boost charging device of claim 6, wherein,
The control module is suitable for closing the fourth switch k4 and the seventh switch k7, and opening the fifth switch k5 and the sixth switch k6, so that the boost charging device enters an inductive energy storage mode.
8. The boost charging device of claim 6, wherein,
The control module is suitable for closing the fourth switch k4, the fifth switch k5, the sixth switch k6 and the seventh switch k7, and opening the fifth switch k5 and the sixth switch k6, so that the boost charging device enters a boost mode.
9. The boost charging device of claim 8, wherein,
The control module is further suitable for controlling any one or more of the first switch k1, the second switch k2 and the third switch k3 to be closed so as to accurately boost.
10. A charging system comprising a power cell and a boost charging device according to any one of claims 1 to 9;
the boosting charging device is electrically connected with the power battery and is suitable for charging the power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322608883.1U CN220874252U (en) | 2023-09-26 | 2023-09-26 | Boost charging device and charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322608883.1U CN220874252U (en) | 2023-09-26 | 2023-09-26 | Boost charging device and charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220874252U true CN220874252U (en) | 2024-04-30 |
Family
ID=90809394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322608883.1U Active CN220874252U (en) | 2023-09-26 | 2023-09-26 | Boost charging device and charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220874252U (en) |
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2023
- 2023-09-26 CN CN202322608883.1U patent/CN220874252U/en active Active
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