阅读说明：本技术 变压器、变压装置及变压方法 (Transformer, transformation device and transformation method ) 是由 刘佩甲 赵德琦 吴壬华 于 2020-04-13 设计创作，主要内容包括：一种变压器、变压装置及变压方法,该变压器(100)放置在金属外壳(104)制成的凹槽内,该金属外壳(104)接地；该变压器(100)包括变压电路(101),该变压电路(101)包括变压器磁芯；该变压电路(101)的输入端连接电源(102),该变压电路(101)的输出端连接低压电池(103)；该变压器磁芯连接金属导体,该金属外壳(104)连接该金属导体,该金属导体用于将该变压器磁芯产生的耦合电压传导到该金属外壳(104)。该技术方案解决了变压器的磁芯与金属外壳之间拉弧放电的问题,优化了车载充电机的性能。(A transformer, a transformation device and a transformation method, wherein the transformer (100) is placed in a groove made of a metal shell (104), and the metal shell (104) is grounded; the transformer (100) comprises a transformation circuit (101), the transformation circuit (101) comprising a transformer core; the input end of the transformation circuit (101) is connected with a power supply (102), and the output end of the transformation circuit (101) is connected with a low-voltage battery (103); the transformer core is connected to a metal conductor, and the metal shell (104) is connected to the metal conductor, and the metal conductor is used for conducting the coupling voltage generated by the transformer core to the metal shell (104). The technical scheme solves the problem of arc discharge between the magnetic core of the transformer and the metal shell, and optimizes the performance of the vehicle-mounted charger.)

1. A transformer is characterized in that the transformer is placed in a groove made of a metal shell, and the metal shell is grounded;

the transformer comprises a transformation circuit, and the transformation circuit comprises a transformer magnetic core;

the input end of the voltage transformation circuit is connected with a power supply, and the output end of the voltage transformation circuit is connected with a low-voltage battery;

the transformer magnetic core is connected with a metal conductor, the metal shell is connected with the metal conductor, and the metal conductor is used for conducting the coupling voltage generated by the transformer magnetic core to the metal shell.

2. The transformer of claim 1, further comprising a rectifying circuit;

the output end of the voltage transformation circuit is connected with the input end of the rectification circuit, and the voltage transformation circuit is used for conducting the output current of the power supply to the rectification circuit;

the output end of the rectifying circuit is connected with the low-voltage battery, and the rectifying circuit is used for rectifying the output current of the voltage transformation circuit.

3. The transformer of claim 2, wherein the transformer circuit further comprises a primary coil and a secondary coil, the primary coil and the secondary coil being wound around the transformer core;

the primary coil is connected with the power supply;

and the first output end of the secondary coil is connected with the input end of the rectifying circuit.

4. The transformer of claim 3, wherein the rectifying circuit comprises a diode and a capacitor;

the anode of the diode is connected with the first output end of the secondary coil;

and the cathode of the diode is connected with the first end of the capacitor and the low-voltage battery.

5. The transformer according to any one of claims 1 to 4, wherein the transformer core is grounded through the metal conductor.

6. The transformer of claim 5, wherein the metallic conductor comprises a first segment, a second segment, and a third segment;

a first end of the transformer core is connected to a first section of the metal conductor;

the first side of the metal shell is connected with the second section of the metal conductor;

the second side of the metal housing is connected to the third section of the metal conductor.

7. The transformer of claim 1, wherein the metal conductor comprises a first metal conductor comprising a first segment and a second metal conductor comprising a first segment and a second segment;

a first end of the transformer core is connected to a first segment of the first metal conductor;

the first side of the metal shell is connected with the second section of the first metal conductor;

a first end of the transformer core is connected with the first section of the second metal conductor;

the second side of the metal shell is connected with the second section of the second metal conductor;

the first metal conductor and the second metal conductor are used for conducting the coupling voltage generated by the transformer magnetic core to the metal shell.

8. A transformer arrangement comprising a transformer according to any one of claims 1 to 7.

9. A transformation method applied to the transformer of any one of claims 1 to 7 or the transformation device of claim 8, wherein the transformer is placed in a groove made of a metal shell, the metal shell is grounded, the transformer comprises a transformation circuit, and the transformation circuit comprises a transformer core;

connecting the input end of the voltage transformation circuit with a power supply, and connecting the output end of the voltage transformation circuit with a low-voltage battery;

connecting the transformer core to a metal conductor, and connecting the metal shell to the metal conductor, wherein the metal conductor is used for conducting the coupling voltage generated by the transformer core to the metal shell.

Technical Field

The application relates to the technical field of electric automobile charging, in particular to a transformer, a transformation device and a transformation method.

Background

With the popularization of electric vehicles, more and more people choose electric vehicles when going out, a vehicle-mounted charger is a device for charging a vehicle-mounted power battery, and during power transmission, isolation and energy transmission are often required through a transformer.

In the prior art, in order to solve the heat dissipation problem, a transformer is placed in a metal shell, heat of the transformer is rapidly transferred out through the metal shell, however, a gap is often formed between a magnetic core of the transformer and the metal shell, when voltage is applied to a coil of the transformer, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core of the transformer can discharge arc discharge to the metal shell, and the performance of a vehicle-mounted charger is affected.

Content of application

The application provides a transformer, a transformation device and a transformation method, which solve the problem of arc discharge between a magnetic core of the transformer and a metal shell and optimize the performance of a vehicle-mounted charger.

A first aspect of the present application provides a transformer, wherein the transformer is placed in a groove made of a metal shell, and the metal shell is grounded;

the transformer comprises a transformation circuit, and the transformation circuit comprises a transformer magnetic core;

the input end of the voltage transformation circuit is connected with a power supply, and the output end of the voltage transformation circuit is connected with a low-voltage battery;

the transformer magnetic core is connected with a metal conductor, the metal shell is connected with the metal conductor, and the metal conductor is used for conducting the coupling voltage generated by the transformer magnetic core to the metal shell.

In one possible example, the transformer further comprises a rectifying circuit;

the output end of the voltage transformation circuit is connected with the input end of the rectification circuit, and the voltage transformation circuit is used for conducting the output current of the power supply to the rectification circuit;

the output end of the rectifying circuit is connected with the low-voltage battery, and the rectifying circuit is used for rectifying the output current of the voltage transformation circuit.

In one possible example, the transformer circuit further comprises a primary coil and a secondary coil, and the primary coil and the secondary coil are wound on the transformer core;

the primary coil is connected with the power supply;

and the first output end of the secondary coil is connected with the input end of the rectifying circuit.

In one possible example, the rectifying circuit includes a diode and a capacitor;

the anode of the diode is connected with the first output end of the secondary coil;

and the cathode of the diode is connected with the first end of the capacitor and the low-voltage battery.

In one possible example, the transformer core is grounded through the metal conductor.

In one possible example, the metal conductor includes a first segment, a second segment, and a third segment;

a first end of the transformer core is connected to a first section of the metal conductor;

the first side of the metal shell is connected with the second section of the metal conductor;

the second side of the metal housing is connected to the third section of the metal conductor.

In one possible example, the metal conductor includes a first metal conductor including a first segment and a second segment, and a second metal conductor including a first segment and a second segment;

a first end of the transformer core is connected to a first segment of the first metal conductor;

the first side of the metal shell is connected with the second section of the first metal conductor;

a first end of the transformer core is connected with the first section of the second metal conductor;

the second side of the metal shell is connected with the second section of the second metal conductor;

the first metal conductor and the second metal conductor are used for conducting the coupling voltage generated by the transformer magnetic core to the metal shell.

A second aspect of the present application provides a transformer apparatus comprising the transformer according to the first aspect of the present application.

A third aspect of the present application provides a transformation method applied to the transformer of the first aspect of the present application or the transformation apparatus of the second aspect of the present application, wherein the transformer is placed in a groove made of a metal housing, the metal housing is grounded, the transformer includes a transformation circuit, and the transformation circuit includes a transformer core;

connecting the input end of the voltage transformation circuit with a power supply, and connecting the output end of the voltage transformation circuit with a low-voltage battery;

connecting the transformer core to a metal conductor, and connecting the metal shell to the metal conductor, wherein the metal conductor is used for conducting the coupling voltage generated by the transformer core to the metal shell.

In this application, the transformer is placed in the recess that metal casing made, and metal casing ground connection, transformer include the transform circuit, and the transform circuit includes the magnetic transformer core, and the input of transform circuit connects the power, and the low voltage battery is connected to the output of transform circuit, and the metallic conductor is connected to the magnetic transformer core, and metallic conductor is used for conducting the coupling voltage that the magnetic transformer core produced to metal casing. It can be seen that, through the transformer that this application provided, the transformer is placed in the recess that metal casing made to metal casing ground connection, the magnetic core of transformer passes through metal conductor with metal casing and is connected, when with voltage application on the coil of transformer, the magnetic core of transformer produces coupling voltage, coupling voltage on the magnetic core can be conducted to metal casing through metal conductor, magnetic core and metal casing are equipotential, thereby drawn arc discharge between avoided magnetic core and the metal casing, drawn arc discharge's problem between the magnetic core of transformer and the metal casing has been solved, the performance of on-vehicle machine that charges has been optimized.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings referred to in the embodiments or the background art of the present application will be briefly described below.

Reference will now be made in brief to the accompanying drawings, to which embodiments of the present application relate.

Fig. 1 is a schematic diagram of a transformer provided in an embodiment of the present application;

fig. 2 is a schematic diagram of another transformer provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of the voltage transformation circuit shown in FIG. 2;

FIG. 4 is a schematic diagram of the rectifier circuit shown in FIG. 2;

fig. 5 is a schematic circuit diagram of a transformer according to an embodiment of the present application;

fig. 6 is a schematic flowchart of a voltage transformation method according to an embodiment of the present application.

Detailed description of the invention

In order to make the technical solutions better understood by those skilled in the art, 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 described embodiments are only partial embodiments of the present application, but not all 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 following are detailed below.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The vehicle-mounted charger is a device for charging a vehicle-mounted power battery, and is usually required to be isolated and transmit energy through a transformer during power transmission. In the prior art, in order to solve the heat dissipation problem, a transformer is placed in a metal shell, heat of the transformer is rapidly transferred out through the metal shell, however, a gap is often formed between a magnetic core of the transformer and the metal shell, when voltage is applied to a coil of the transformer, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core of the transformer can discharge arc discharge to the metal shell, and the performance of a vehicle-mounted charger is affected.

In view of the above problems, an embodiment of the present application provides a transformer, where the transformer is placed in a groove made of a metal shell, the metal shell is grounded, the transformer includes a transformer circuit, the transformer circuit includes a transformer core, an input end of the transformer circuit is connected to a power supply, an output end of the transformer circuit is connected to a low-voltage battery, the transformer core is connected to a metal conductor, the metal shell is connected to a metal conductor, and the metal conductor is used for conducting a coupling voltage generated by the transformer core to the metal shell. Therefore, in the transformer provided by the embodiment of the application, the transformer is placed in the groove made of the metal shell, the metal shell is grounded, the magnetic core of the transformer is connected with the metal shell through the metal conductor, when voltage is applied to the coil of the transformer, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core can be conducted to the metal shell through the metal conductor, and the magnetic core and the metal shell are equipotential, so that arc discharge between the magnetic core and the metal shell is avoided, the problem of arc discharge between the magnetic core of the transformer and the metal shell is solved, and the performance of a vehicle-mounted charger is optimized.

Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic diagram of a transformer 100 according to an embodiment of the present application, the transformer 100 is disposed in a groove formed in a metal housing 104, the metal housing 104 is grounded, the transformer 100 includes a transformation circuit 101, where:

the transformer circuit 101 includes a transformer core;

the input end of the transformation circuit 101 is connected with the power supply 102, and the output end of the transformation circuit 101 is connected with the low-voltage battery 103;

the transformer core is connected to a metal conductor and the metal shell 104 is connected to a metal conductor, which is used to conduct the coupling voltage generated by the transformer core to the metal shell 104.

The power source 102 may be 220V ac, for example.

The low-voltage battery 103 may be, for example, a battery having a voltage of 14V.

It can be seen that, in the above technical scheme, the transformer is placed in the groove made of the metal shell, the metal shell is grounded, the magnetic core of the transformer is connected with the metal shell through the metal conductor, when voltage is applied to the coil of the transformer, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core can be conducted to the metal shell through the metal conductor, the magnetic core and the metal shell are equipotential, so that arc discharge between the magnetic core and the metal shell is avoided, the problem of arc discharge between the magnetic core of the transformer and the metal shell is solved, and the performance of the vehicle-mounted charger is optimized.

Referring to fig. 2, fig. 2 is a schematic diagram of another transformer 200 according to an embodiment of the present application, the transformer 200 is disposed in a recess formed in a metal housing 205, the metal housing 205 is grounded, the transformer 200 includes a transforming circuit 201 and a rectifying circuit 202, wherein:

the transforming circuit 201 includes a transformer core;

the input end of the transformation circuit 201 is connected with the power supply 203, the output end of the transformation circuit 201 is connected with the input end of the rectification circuit 202, and the transformation circuit 201 is used for conducting the output current of the power supply 203 to the rectification circuit 202;

the output end of the rectifying circuit 202 is connected with the low-voltage battery 204, and the rectifying circuit 202 is used for rectifying the output current of the transformer circuit 201;

the transformer core is connected to a metal conductor and the metal shell 205 is connected to a metal conductor, which is used to conduct the coupling voltage generated by the transformer core to the metal shell 205.

The power source 203 may be 220V ac, for example.

The low-voltage battery 204 may be, for example, a 14V battery.

It can be seen that, in the above technical scheme, the transformer is placed in the groove made of the metal shell, and the metal shell is grounded, the magnetic core of the transformer is connected with the metal shell through the metal conductor, when voltage is applied to the coil of the transformer, the output current of the power supply is conducted to the rectifying circuit by the voltage transformation circuit, the rectifying circuit rectifies the output current of the voltage transformation circuit to charge the low-voltage battery, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core can be conducted to the metal shell through the metal conductor, the magnetic core and the metal shell are equipotential, thereby avoiding arc discharge between the magnetic core and the metal shell of the transformer, solving the problem of arc discharge between the magnetic core and the metal shell of the transformer, and optimizing the performance of the vehicle-.

In one possible example, referring to fig. 3, the transformer circuit 201 includes a primary coil 2011, a transformer core 2012 and a secondary coil 2013, wherein the primary coil 2011 and the secondary coil 2013 are wound on the transformer core 2012;

the primary coil 2011 is connected to the power source 203;

a first output end of the secondary coil 2013 is connected with an input end of the rectifying circuit 202;

the transformer core 2012 is grounded via a metal conductor.

In one possible example, referring to fig. 4, the rectifying circuit 202 includes a diode D1 and a capacitor C1;

the anode of the diode D1 is connected to the first output terminal of the secondary winding 2013;

the cathode of the diode D1 is connected to the first terminal of the capacitor C1 and the low voltage battery 204. The diode D1 is a rectifier diode.

The rectifying circuit 202 is used for rectifying the output current of the transforming circuit 201 to charge the low-voltage battery 204.

Referring to fig. 5, fig. 5 is a schematic circuit diagram of a transformer 200 according to an embodiment of the present disclosure;

as shown in fig. 5, the transformer 200 is placed in a groove made of the metal housing 205, the metal housing 205 is grounded, the transformer 200 includes a transformer circuit 201 and a rectifier circuit 202, the transformer circuit 201 includes a primary coil 2011, a transformer core 2012 and a secondary coil 2013, the primary coil 2011 and the secondary coil 2013 are wound on the transformer core 2012, and the rectifier circuit 202 includes a diode D1 and a capacitor C1;

the primary coil 2011 is connected to the power source 203;

the anode of the diode D1 is connected to the first output terminal of the secondary winding 2013;

the cathode of the diode D1 is connected with the first end of the capacitor C1 and the low-voltage battery 204;

the transformer core 2012 is connected with a metal conductor, and the metal shell 205 is connected with a metal conductor, which is used for conducting the coupling voltage generated by the transformer core 2012 to the metal shell 205;

the transformer circuit 201 is used for conducting the output current of the power supply 203 to the rectifying circuit 202;

the rectifying circuit 202 is used for rectifying the output current of the transforming circuit 201 to charge the low-voltage battery 204;

the transformer core 2012 is grounded via a metal conductor.

It can be seen that, in the above technical scheme, the transformer is placed in the groove made of the metal shell, and the metal shell is grounded, the magnetic core of the transformer is connected with the metal shell through the metal conductor, when voltage is applied to the coil of the transformer, the output current of the power supply is conducted to the rectifying circuit by the voltage transformation circuit, the rectifying circuit rectifies the output current of the voltage transformation circuit to charge the low-voltage battery, the magnetic core of the transformer generates coupling voltage, the coupling voltage on the magnetic core can be conducted to the metal shell through the metal conductor, the magnetic core and the metal shell are equipotential, thereby avoiding arc discharge between the magnetic core and the metal shell of the transformer, solving the problem of arc discharge between the magnetic core and the metal shell of the transformer, and optimizing the performance of the vehicle-.

In one possible example, the metallic conductor includes a first segment, a second segment, and a third segment, the first end of the transformer core is connected to the first segment of the metallic conductor, the first side of the metallic enclosure is connected to the second segment of the metallic conductor, the second side of the metallic enclosure is connected to the third segment of the metallic conductor, the transformer core is connected to the metallic enclosure through the metallic conductor, the metallic enclosure is grounded, and the metallic conductor is used to conduct the coupling voltage generated by the transformer core to the metallic enclosure.

Specifically, the transformer is placed in a groove made of a metal shell, the metal shell is made of a metal material with good electrical conductivity such as copper or aluminum, and is grounded, the transformer comprises a primary coil, a secondary coil and a transformer core, the primary coil and the secondary coil are wound on the transformer core, the primary coil and the secondary coil are input coils and output coils of the transformer respectively, energy is transferred through magnetic field coupling, a first end of the transformer core is connected with a first section of a metal conductor, the metal conductor can be made of a metal material with good electrical conductivity such as copper or aluminum, for example, the first side of the metal shell is connected with a second section of the metal conductor, a second side of the metal shell is connected with a third section of the metal conductor, for example, the metal conductor is a copper conductor, the top end of the transformer core is in contact connection with the first section of the copper conductor, and one side of the metal shell is in contact connection, the other side of the metal shell is connected in contact with the third section of the copper conductor, whereby the transformer core is connected to the metal shell via the copper conductor.

Therefore, when voltage is applied to the coil of the transformer, the transformer magnetic core generates coupling voltage, the coupling voltage on the transformer magnetic core can be conducted to the metal shell through the metal conductor, and the transformer magnetic core and the metal shell are equipotential, so that arc discharge between the transformer magnetic core and the metal shell is avoided, the problem of arc discharge between the transformer magnetic core and the metal shell is solved, and the performance of a vehicle-mounted charger is optimized.

In one possible example, the metal conductor comprises a first metal conductor comprising a first segment and a second metal conductor comprising a first segment and a second segment, the first end of the transformer core is connected to the first segment of the first metal conductor, the first side of the metal enclosure is connected to the second segment of the first metal conductor;

the first end of the transformer magnetic core is connected with the first section of the second metal conductor, the second side of the metal shell is connected with the second section of the second metal conductor, the transformer magnetic core is connected with the metal shell through the first metal conductor and the second metal conductor, the metal shell is grounded, and the first metal conductor and the second metal conductor are used for conducting coupling voltage generated by the transformer magnetic core to the metal shell.

Specifically, the transformer is placed in a groove made of a metal shell, the metal shell is made of metal materials with good electric conductivity such as copper or aluminum, the metal shell is grounded, the transformer comprises a primary coil, a secondary coil and a transformer magnetic core, the primary coil and the secondary coil are wound on the transformer magnetic core, the primary coil and the secondary coil are input coils and output coils of the transformer respectively and transfer energy through magnetic field coupling, a first end of the transformer magnetic core is connected with a first section of a first metal conductor, a first side of the metal shell is connected with a second section of the first metal conductor, a first end of the transformer magnetic core is connected with a first section of a second metal conductor, a second side of the metal shell is connected with a second section of the second metal conductor, the transformer magnetic core is connected with the metal shell through the first metal conductor and the second metal conductor, and the first metal conductor and the second metal conductor can be made of the same metal materials, for example, the first metal conductor is a copper conductor, the top end of the transformer core is in contact connection with a first section of the first metal conductor, one side of the metal shell is in contact connection with a second section of the first metal conductor, the second metal conductor may also be a copper conductor, the top end of the transformer core is in contact connection with a first section of the second metal conductor, and the other side of the metal shell is in contact connection with a second section of the second metal conductor, so that the transformer core is connected with the metal shell through the first metal conductor and the second metal conductor.

Therefore, when voltage is applied to the coil of the transformer, the transformer magnetic core generates coupling voltage, the coupling voltage on the transformer magnetic core can be conducted to the metal shell through the first metal conductor and the second metal conductor, and the transformer magnetic core and the metal shell are equipotential, so that arc discharge between the transformer magnetic core and the metal shell is avoided, the problem of arc discharge between the transformer magnetic core and the metal shell is solved, and the performance of a vehicle-mounted charger is optimized.

The embodiment of the application also provides a transformer device, which comprises the transformer, and the details are not repeated herein.

Referring to fig. 6, fig. 6 is a schematic flowchart of a transformation method provided in an embodiment of the present application, and the transformation method is applied to a transformer, the transformer is placed in a groove formed in a metal housing, the metal housing is grounded, the transformer includes a transformation circuit, the transformation circuit includes a transformer core, and the method includes:

601, connecting the input end of the voltage transformation circuit with a power supply, and connecting the output end of the voltage transformation circuit with a low-voltage battery;

step 602, connecting the transformer core to a metal conductor, and connecting the metal shell to the metal conductor, where the metal conductor is used to conduct the coupling voltage generated by the transformer core to the metal shell.

It should be noted that, for the sake of simplicity, the embodiments of the present application are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application with specific examples, and the above description of the embodiments is only provided to help understand the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific implementation and application scope, and in view of the above, the content of the present specification should not be construed as a limitation to the present application.