CN215590528U - Electric vehicle charger, charging pile and charging management system - Google Patents

Abstract

The utility model provides an electric vehicle charger, a charging pile and a charging management system, which relate to the technical field of charging, and the electric vehicle charger comprises: the charging device comprises a control module, a power module, a charging module and a display module; the charging module and the display module are connected with the control module; the control module comprises a controller, a trigger circuit and a detection circuit, wherein the trigger circuit and the detection circuit are connected with the controller; the trigger circuit generates a confirmation signal, the detection circuit is used for detecting the charging indication parameter of the battery to be charged, and the controller is used for starting the charging module to charge the battery to be charged according to the confirmation signal and sending the level signal corresponding to the charging indication parameter to the display module to be displayed. The electric vehicle charger, the charging pile and the charging management system improve the intelligence of the electric vehicle charger, can display the charging indication parameter in the charging process, increase the interactivity with a user and further improve the use experience of the user.

Description

Electric vehicle charger, charging pile and charging management system

Technical Field

The utility model relates to the technical field of charging, in particular to an electric vehicle charger, a charging pile and a charging management system.

Background

Along with the continuous enhancement of people's environmental awareness, the electric motor car has widely promoted in the automotive industry, and the electric motor car uses the advantage of its environmental protection as the traffic work of new generation, will greatly obtain popularizing in later daily life, and electric motor car charger machine is the equipment that specially charges for the electric motor car, saves the electric energy in order to realize the energy conversion of car in the battery of car, and current electric motor car charger when using, its function is too single, has reduced user's use and has experienced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an electric vehicle charger, a charging pile and a charging management system to alleviate the above technical problems.

In a first aspect, an embodiment of the present invention provides an electric vehicle charger, including: the charging device comprises a control module, a power module, a charging module and a display module; the power supply module is used for supplying power to the control module, the charging module and the display module; the charging module and the display module are connected with the control module; the control module comprises a controller, a trigger circuit and a detection circuit, wherein the trigger circuit and the detection circuit are connected with the controller; the trigger circuit is used for responding to the charging confirmation operation of the battery to be charged, generating a confirmation signal according to the charging confirmation operation and sending the confirmation signal to the controller; the detection circuit is used for detecting the charging indication parameter of the battery to be charged and sending the charging indication parameter to the controller; wherein the charging indication parameter comprises an actual power and/or an actual voltage of the battery to be charged; the controller is used for starting the charging module to charge the battery to be charged according to the confirmation signal, and sending a level signal corresponding to the charging indication parameter to the display module so as to display the charging indication parameter.

Preferably, in a possible implementation, the charging module includes a charging control circuit and a charging circuit connected in sequence; the charging control circuit is arranged on a connecting passage of the charging circuit and the power supply system and comprises at least one first charging branch and at least one second charging branch; the charging circuit comprises a charging input unit, a rectifier bridge and a charging output unit which are connected in sequence; the charging input unit is provided with a charging input interface matched with the first charging branch and the second charging branch, and the charging output unit is connected with the battery to be charged; the first charging branch and the second charging branch are both provided with an optical coupling isolation device; the controller is used for controlling the on-off state of the optical coupling isolation device to control at least one path of the first charging branch and at least one path of the second charging branch to charge the battery to be charged.

Preferably, in a possible implementation, the display module includes a display driving chip and a display device connected to the display driving chip; the display driving chip is used for driving the display device to display the charging indication parameter according to the level signal of the charging indication parameter sent by the controller.

Preferably, in a possible implementation manner, the power supply module includes a rectifier bridge stack, an energy storage capacitor, a transformer module and a power supply output end which are connected in sequence; the input end of the rectifier bridge stack is connected with a power supply system, and the output end of the rectifier bridge stack is connected with the energy storage capacitor and the transformer module; the power supply output end is used for outputting a power supply; the transformer module comprises a power chip and a transformer unit connected with the power chip; the rectifier bridge stack is used for rectifying alternating current commercial power output by the power supply system to output direct current; the transformer module is used for transforming the direct current and outputting the direct current from the power supply output end so as to supply power to the control module, the charging module and the display module.

Preferably, in a possible implementation, the controller includes a trigger interface and a detection interface; the trigger circuit is connected with the trigger interface, and the detection circuit is connected with the detection interface.

Preferably, in a possible implementation, the trigger circuit includes at least one trigger switch; the trigger switch is used for responding to the charging confirmation operation of the battery to be charged and sending the confirmation signal to the controller.

Preferably, in a possible implementation manner, the detection circuit includes a voltage divider circuit, an input end of the voltage divider circuit is used for being connected with an output end of the battery to be charged, and an output end of the voltage divider circuit is used for being connected with the detection interface; the voltage division circuit is used for acquiring a voltage signal of the battery to be charged and generating the voltage signal to the controller through the detection interface; the controller is used for generating a charging indication parameter of the battery to be charged according to the voltage signal.

Preferably, in a possible implementation, the electric vehicle charger further includes a heat dissipation module connected to the control module; the heat dissipation module comprises a heat dissipation driving circuit and a heat dissipation unit; the heat dissipation driving circuit is connected with the controller and used for conducting heat dissipation processing on the electric vehicle charger through the heat dissipation unit under the driving of the controller.

In a second aspect, an embodiment of the present invention further provides a charging pile, where the charging pile is configured with the electric vehicle charger according to the first aspect.

In a third aspect, an embodiment of the present invention further provides a charging management system, where the charging pile of the second aspect is configured in the charging management system.

The embodiment of the utility model has the following beneficial effects:

the embodiment of the utility model provides an electric vehicle charger, a charging pile and a charging management system, wherein a control module, a power supply module, a charging module and a display module are arranged in the electric vehicle charger, so that the electric vehicle charger can respond to the charging confirmation operation of a battery to be charged through a trigger circuit while meeting the normal charging function, generates a confirmation signal according to the charging confirmation operation and sends the confirmation signal to a controller, detects the charging indication parameter of the battery to be charged through a detection circuit and sends the charging indication parameter to the controller, further, the controller can start the charging module to charge the battery to be charged according to the confirmation signal, sends a level signal corresponding to the charging indication parameter to the display module to display the charging indication parameter, further, the charging operation of the battery to be charged is confirmed firstly in the charging process, and then the charging process is executed, the intelligence of electric vehicle charging ware has been improved, simultaneously, also can show the instruction parameter that charges in the charging process, increased the interactive with the user, and then improved user's use and experienced.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of an electric vehicle charger according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another electric vehicle charger according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a charge control circuit according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a charging circuit according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a display module according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a control module according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a power module according to an embodiment of the present invention;

fig. 8 is a schematic circuit diagram of a heat dissipation module according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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 invention.

At present, most of existing chargers for electric vehicles execute the charging process of the electric vehicle under the operation of users, and in the using process, the functions are too single, so that the user experience is reduced. Based on this, the electric vehicle charger, the charging pile and the charging management system provided by the embodiment of the utility model can effectively alleviate the technical problems.

To facilitate understanding of the present embodiment, a detailed description will be given of an electric vehicle charger disclosed in the present embodiment.

In a possible implementation manner, an embodiment of the present invention provides an electric vehicle charger, and in particular, a structural schematic diagram of the electric vehicle charger shown in fig. 1, where the electric vehicle charger includes the following structure: the control module 10, the power supply module 20, the charging module 30 and the display module 40; the power module 20 is used for supplying power to the control module 10, the charging module 30 and the display module 40.

Specifically, the charging module 30 and the display module 40 are connected with the control module 10; the control module 10 comprises a controller 101, and a trigger circuit 102 and a detection circuit 103 which are connected with the controller 101, wherein the trigger circuit 102 is used for responding to the charging confirmation operation of the battery to be charged, generating a confirmation signal according to the charging confirmation operation and sending the confirmation signal to the controller 101; the detection circuit 103 is configured to detect a charging indication parameter of the battery to be charged, and send the charging indication parameter to the controller 101; wherein the charge indication parameter comprises an actual power and/or an actual voltage of the battery to be charged.

The controller 101 is configured to start the charging module 30 to charge the battery to be charged according to the confirmation signal, and send a level signal corresponding to the charging indication parameter to the display module 40, so that the display module 40 displays the charging indication parameter.

In practical use, the input end of the charging module is connected to a power supply system (such as ac mains supply), the output end is connected to a battery to be charged, the electric energy provided by the power supply system can be converted and charged to the battery to be charged, before charging, a user needs to connect the electric vehicle charger according to the embodiment of the present invention to the battery to be charged, so that when the electric vehicle charger is correctly connected, a charging confirmation operation is sent to the electric vehicle charger, and the trigger circuit can respond to the charging confirmation operation and generate a confirmation signal to the controller, for example, a button can be set on the trigger circuit, when the user confirms that the electric vehicle charger is connected to the battery to be charged, the button can be pressed to confirm, in addition, a detection sensor such as a contact sensor, a position sensor, a gravity sensor and the like can be set on the trigger circuit, when the electric vehicle charger is connected to the battery to be charged, the on state is automatically detected and confirmed, and a confirmation signal may also be generated, and a specific confirmation manner may be set according to an actual use situation, which is not limited in the embodiment of the present invention.

Further, in addition to the display of the connection state between the electric vehicle charger and the battery to be charged, the display module 40 may also display a charging indication parameter, for example, may display the actual power of the battery to be charged, or the actual voltage of the battery to be charged, or simultaneously display the actual power and the actual voltage of the battery to be charged, so as to visually display the current electric quantity of the battery to be charged.

Therefore, the electric vehicle charger provided by the embodiment of the utility model can respond to the charging confirmation operation of the battery to be charged through the trigger circuit, generate the confirmation signal according to the charging confirmation operation and send the confirmation signal to the controller, detect the charging indication parameter of the battery to be charged through the detection circuit and send the charging indication parameter to the controller, so that the controller can start the charging module to charge the battery to be charged according to the confirmation signal, send the level signal corresponding to the charging indication parameter to the display module to display the charging indication parameter, further confirm the charging operation of the battery to be charged firstly in the charging process and then execute the charging process, and improve the intelligence of the electric vehicle charger, meanwhile, the charging indication parameter can be displayed in the charging process, so that the interactivity with a user is increased, and the use experience of the user is improved.

In practical use, the electric vehicle charger comprises a plurality of functional modules which can be integrated on the corresponding circuit board and further assembled inside the electric vehicle charger.

Further, in order to convert the electric energy provided by the power supply system and control the charging process of the electric vehicle charger, the charging module generally comprises a charging control circuit and a charging circuit which are connected in sequence; for convenience of understanding, on the basis of fig. 1, fig. 2 shows a schematic structural diagram of another electric vehicle charger, and a charging control process of the electric vehicle charger is described.

Specifically, a charging control circuit 301 and a charging circuit 302 are included. The charging control circuit 301 is disposed on a connection path between the charging circuit and a power supply system (such as an ac mains supply), and includes at least one first charging branch and at least one second charging branch; the charging circuit 302 further includes a charging input unit 303, a rectifier bridge 304 and a charging output unit 305 connected in sequence; the charging input unit 303 is provided with a charging input interface matched with the first charging branch and the second charging branch, and the charging output unit is connected with a battery to be charged.

In specific implementation, the first charging branch and the second charging branch are both provided with an optical coupling isolation device; the controller is used for controlling the on-off state of the optical coupling isolation device to control at least one first charging branch and at least one second charging branch to charge the battery to be charged.

For ease of understanding, fig. 3 also shows a schematic circuit diagram of a charging control circuit, and fig. 4 shows a schematic circuit diagram of a charging circuit. In the embodiment of the present invention, a charging control circuit including two first charging branches and one second charging branch is taken as an example for description.

Specifically, in the charging control circuit shown in fig. 3, taking the power supply system providing AC 110V-220V AC mains as an example for explanation, the two first charging branches are respectively connected to the live wire of the AC mains, that is, the ACL end in fig. 3 is connected to the live wire of the AC mains, and the ACN of the second charging branch is connected to the zero line of the AC mains. In the charging control circuit shown in fig. 3, the optocoupler isolators disposed in the first charging branch and the second charging branch of the charging control circuit both adopt MOC 3061-series zero-crossing triggering dual-silicon output optocoupler devices, and in addition to the optocoupler isolators, the first charging branch and the second charging branch further include thyristor devices, specifically, as shown in fig. 3, pins CHRG1, CHRG2 and CHRGN are connected to the controller, the controller triggers the optocoupler isolator of each charging branch through a switching circuit composed of a triode, specifically, ac mains power enters an ACL pin, the thyristor device TR1 controls the first charging branch where the CBB1 is located, the thyristor device TR2 controls the first charging branch where the CBB2 is located, the thyristor device TR1 and the thyristor device TR2 are further controlled by the optocoupler isolator of the corresponding branch, and the optocoupler isolator is further controlled by the controller, therefore, the controller can control the charging branch circuit where one silicon controlled rectifier is located to work according to preset charging logic to realize low-power slow charging, and when the battery to be charged can meet the condition of fast charging, the controller can control two silicon controlled rectifiers to enable the two charging branch circuits to work in parallel to realize high-power fast charging. In addition, the second charging branch where the thyristor device TR3 is located can also control the other branch of the alternating current entering the electric vehicle charger under the control of the controller.

Further, in the schematic circuit diagram of the charging circuit shown in fig. 4, the CBB1, CBB2 and ACNOUT pins correspond to the charging input interface of the charging input unit, wherein the CBB1 and CBB2 are respectively connected to the corresponding pins in fig. 3, and respectively correspond to the two first charging branches, and the ACNOUT pin corresponds to the second charging branch. Further, the rectifier bridge of the charging circuit is implemented by rectifier bridge integrated modules, i.e., the rectifier bridges BR1 and BR2 in fig. 4, which are connected as shown in fig. 4, and generally, the rectifier bridge of the charging circuit can be implemented by a rectifier bridge integrated module in the D25XB series. Further, B + and B-in fig. 4 are output interfaces of the charging output unit, and are connected with the battery to be charged.

Further, the controller usually uses a single chip to implement the charging control function, for example, a flash memory single chip of PIC16F1828 series, etc., and may integrate functions of a central processing unit CPU with data processing capability, a random access memory RAM, a read only memory ROM, various I/O ports and interrupt systems, a timer/counter, etc. (which may further include circuits such as a display driving circuit, a pulse width modulation circuit, an analog multiplexer, an a/D converter, etc.), so as to implement the charging control of the electric vehicle charger. For example, the charging control circuit controls low-power slow charging or high-power fast charging, so that the alternating current mains supply enters the charging circuit, and the rectifier bridge of the charging circuit rectifies the alternating current mains supply to charge the battery to be charged.

Further, the display module in the embodiment of the utility model comprises a display driving chip and a display device connected with the display driving chip; the display driving chip is used for driving the display device to display the charging indication parameter according to the level signal of the charging indication parameter sent by the controller.

Specifically, as shown in fig. 2, the display driving chip 401 and the display device 402 included in the display module 40, and the schematic circuit schematic diagram of the display module shown in fig. 5, in the process of charging the battery to be charged by the electric vehicle charger, the detection circuit of the control module may continuously detect the charging indication parameter of the battery to be charged, and the controller may collect the charging indication parameter once every preset time, and then the controller may drive the display device to display through the display driving chip.

Generally, the controller comprises a trigger interface and a detection interface; the trigger circuit is connected with the trigger interface, and the detection circuit is connected with the detection interface. For the convenience of understanding, fig. 6 also shows a schematic circuit diagram of a control module, where a controller is described by using the above PIC16F1828 flash memory monolithic chip as an example, where the chip U3 is the controller, and the above trigger circuit includes at least one path of trigger switches; the trigger switch is used for responding to the charging confirmation operation of the battery to be charged and sending a confirmation signal to the controller.

Specifically, in fig. 6, three trigger switches, that is, switches S1 to S3, are respectively connected to chip U3 through corresponding pins, and when a user confirms that the electric vehicle charger is connected to the battery to be charged, the trigger switches may be manually triggered to trigger at least one of the trigger circuits, so as to generate a confirmation signal to the controller. The trigger circuits corresponding to S1 to S3 may be further configured as a trigger circuit for a charge mode, and the current performance of charging power may be changed by changing the trigger state of the trigger switch. For example, when S1 is triggered alone, the controller may control the branch in which the thyristor device TR1 is located to operate, so as to disconnect the branch in which the thyristor device TR2 is located, thereby implementing low-power slow charging, when S2 is triggered alone, a voltage level for charging may be selected by a user, and when S1+ S2 is triggered simultaneously, a timing charging mode may be started, and the like, and a setting condition of a specific trigger circuit may be set according to an actual use condition, which is not limited in the embodiment of the present invention.

Further, in fig. 6, a circuit composed of a resistor R17, a resistor R25, and a capacitor C6 is a detection circuit in the embodiment of the present invention, and specifically, the detection circuit includes a voltage division circuit, that is, the resistor R17 and the resistor R25 are connected in series to divide an electrical signal of the battery to be charged, which is collected by a pin B + to be charged, that is, an input terminal B + of the voltage division circuit is used for connecting with an output terminal of the battery to be charged, and an output terminal of the voltage division circuit is a pin corresponding to the bat v1 and used for connecting with the detection interface; therefore, the voltage division circuit can acquire a voltage signal of the battery to be charged and generate the voltage signal to the controller through the detection interface; the controller may generate the charging indication parameter of the battery to be charged according to the voltage signal, and then send the charging indication parameter to the display module shown in fig. 5 for displaying. In addition, fig. 6 further includes an indicator light circuit and a voltage stabilizing chip U2, wherein the voltage stabilizing chip may adopt chips such as 78M05 series, and performs voltage stabilizing and reducing processes on the power supply voltage transmitted to the controller to ensure the power supply stability of the controller, and the indicator light circuit includes a current limiting resistor R35 and a light emitting tube LEDR for indicating the working state of the electric vehicle charger under the controller of the controller, and the like.

Specifically, in the display module shown in fig. 5, U8 is a display driver chip, which is usually implemented by TM1628 series chips, and LEDM1 and LEDM2 are two groups of display devices connected to COM pins of the display driver chip U8. In addition, for the controller in the control module, a corresponding logic may be further set, and a user sets a setting power of the battery to be charged during charging, for example, what setting power to charge the battery to be charged during low-power slow charging, and what setting power to charge the battery to be charged during high-power fast charging, and the like. In addition, in addition to the power, a voltage parameter of the battery to be charged may be displayed, and a specific display condition may be set according to an actual use condition, which is not limited in the embodiment of the present invention.

In practical use, the control module, the display module and the charging module all need a power supply module to supply power, and specifically, as shown in fig. 2, the power supply module in the embodiment of the present invention includes a rectifier bridge stack 201, an energy storage capacitor 202, a transformer module 203 and a power supply output terminal 204, which are connected in sequence. The input end of the rectifier bridge stack is connected with the power supply system, and the output end of the rectifier bridge stack is connected with the energy storage capacitor and the transformer module; the power supply output end is used for outputting a power supply; the transformer module further includes a power chip 205, and a transformer unit 206 connected to the power chip 205.

Specifically, the rectifier bridge stack is used for rectifying alternating current mains supply output by the power supply system to output direct current; the transformer module is used for transforming the direct current and outputting the direct current from the power supply output end so as to supply power to the control module, the charging module and the display module.

For easy understanding, fig. 7 shows a schematic circuit diagram of a power module, where BD1 is a rectifier bridge stack, and in this embodiment of the present invention, the rectifier bridge stack in the power module is implemented by a rectifier chip in MB8S series, an input end of the rectifier bridge stack is directly connected to a power supply system, such as an ac mains, and an output end of the rectifier bridge stack is connected to energy storage capacitors EC1 and EC2 and a transformer module. In addition, this power chip still has the function of falling frequency, can further optimize the conversion efficiency under the light load condition, and, its VDD hiccup function, not only can prevent VDD undervoltage restart, standby power consumption has also been reduced effectively, furthermore, this power chip also has VDD locking function, can reduce short circuit power consumption, its inside protection function that has still integrateed various abnormal state, for example, VDD undervoltage protection, VDD overvoltage protection, leading-edge blanking, output short-circuit protection, overcurrent protection, overtemperature protection etc. and make power module's circuit constantly restart automatically after the protection, until normal work.

Further, as shown in the power module of fig. 7, the transformer unit T1 usually includes a primary winding and a secondary winding, and the polarities of the primary winding and the secondary winding are opposite, when the power chip U1 controls the switch tube U4 to be turned on, the primary inductor current of the transformer unit starts to rise, at this time, due to the relationship of the second dotted terminal, the output diode is turned off, the transformer unit stores energy, and the load is supplied with energy by the output capacitor. When the switching tube U4 is turned off, the primary inductor of the transformer unit induces a reverse voltage, the output diode is turned on, and the energy in the transformer unit supplies power to the load via the output diode, and charges the capacitor to supplement the energy just lost. The voltage signal output by the power module is usually low-voltage direct current, such as 12V voltage, and the like, and can further supply power to other functional modules, and for other functional modules, a voltage drop circuit can be provided for responding, and the 12V voltage is further subjected to voltage drop processing, such as the voltage stabilizing chip U2 in the control module, the 12V voltage is subjected to voltage stabilization processing and converted into 5V voltage, and then the controller is supplied with power, and the like.

Further, as shown in fig. 2, the electric vehicle charger provided in the embodiment of the present invention further includes a heat dissipation module 50 connected to the control module 10; the heat dissipation module 50 can directly supply power through the power module, and specifically, the heat dissipation module 50 includes a heat dissipation driving circuit 501 and a heat dissipation unit 502; the heat dissipation driving circuit 501 is connected to the controller 101, and is configured to perform heat dissipation processing on the electric vehicle charger through the heat dissipation unit under the driving of the controller.

When in actual use, above-mentioned heat dissipation unit indicates devices such as fan usually, and the encapsulation is inside electric vehicle charging ware to, still be provided with the wind hole that carries out the circulation of air usually on electric vehicle charging ware's the shell, when electric vehicle charging ware starts, the controller can drive the fan through heat dissipation drive circuit and rotate promptly, realizes the inside circulation of air of electric vehicle charging ware, dispels the heat to electric vehicle charging ware inside, in order to avoid the high temperature and break down and the accident. Specifically, fig. 8 further shows a schematic circuit diagram of a heat dissipation module, as shown in fig. 8, the resistors R42, R46, and the transistor Q4 constitute the heat dissipation driving circuit, the FAN pin is connected to the controller, the FAN1 and the FAN2 are used for being connected to a heat dissipation unit, such as a FAN, and the controller can control the conduction of the transistor Q4 according to corresponding logic to further drive the heat dissipation unit, thereby implementing heat dissipation processing on the electric vehicle charger.

It should be understood that the schematic circuit diagram shown in the above drawings is only one possible implementation manner of the embodiment of the present invention, and in other implementation manners, the circuit diagrams of the functional modules may also have other forms, and the types and parameters of the components included in the circuit diagrams may also be set according to actual use situations, which is not limited by the embodiment of the present invention.

To sum up, the electric vehicle charger provided by the embodiment of the present invention can realize a charging process by controlling the silicon controlled device through the optical coupling isolation device, and in the charging process, the charging circuit can be controlled to perform low-power slow charging first, and another charging branch circuit is turned on after a period of time to perform high-power fast charging, and before charging, the trigger circuit of the control module can be used to respond to the charging confirmation operation of the battery to be charged, if the battery to be charged is confirmed to be correctly installed, the charging is not performed if the battery to be charged is not correctly installed; if the charging indication parameter is correctly installed, the charging module is started to charge the battery to be charged, meanwhile, the detection circuit can detect the charging indication parameter of the battery to be charged, such as the actual power and/or the actual voltage of the battery to be charged, therefore, after the battery to be charged is quickly filled with the battery saturation voltage, automatic switching to low-power slow-speed charging can be realized through the controller until the battery to be charged is fully saturated, at the moment, the electric vehicle charger is closed, in the whole charging process, the charging indication parameter can be displayed, the interactivity with a user is increased, and further the use experience of the user is improved.

Further, on the basis of the above embodiment, an embodiment of the present invention further provides a charging pile, which is configured with the electric vehicle charger provided by the above embodiment.

Further, the embodiment of the utility model also provides a charging management system, and the charging management system is provided with the charging pile.

The charging pile and the charging management system provided by the embodiment of the utility model have the same technical characteristics as the electric vehicle charger provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the charging pile and the charging management system described above may refer to the corresponding processes in the foregoing embodiments, and are not described herein again.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An electric vehicle charger, comprising: the charging device comprises a control module, a power module, a charging module and a display module; the power supply module is used for supplying power to the control module, the charging module and the display module;

the charging module and the display module are connected with the control module;

the control module comprises a controller, a trigger circuit and a detection circuit, wherein the trigger circuit and the detection circuit are connected with the controller;

the trigger circuit is used for responding to the charging confirmation operation of the battery to be charged, generating a confirmation signal according to the charging confirmation operation and sending the confirmation signal to the controller;

the detection circuit is used for detecting the charging indication parameter of the battery to be charged and sending the charging indication parameter to the controller; wherein the charging indication parameter comprises an actual power and/or an actual voltage of the battery to be charged;

the controller is used for starting the charging module to charge the battery to be charged according to the confirmation signal, and sending a level signal corresponding to the charging indication parameter to the display module so as to display the charging indication parameter.

2. The electric vehicle charger according to claim 1, wherein the charging module comprises a charging control circuit and a charging circuit which are connected in sequence;

the charging control circuit is arranged on a connecting passage of the charging circuit and the power supply system and comprises at least one first charging branch and at least one second charging branch;

the charging circuit comprises a charging input unit, a rectifier bridge and a charging output unit which are connected in sequence; the charging input unit is provided with a charging input interface matched with the first charging branch and the second charging branch, and the charging output unit is connected with the battery to be charged;

the first charging branch and the second charging branch are both provided with an optical coupling isolation device; the controller is used for controlling the on-off state of the optical coupling isolation device to control at least one path of the first charging branch and at least one path of the second charging branch to charge the battery to be charged.

3. The electric vehicle charger according to claim 1, wherein the display module comprises a display driving chip and a display device connected to the display driving chip;

the display driving chip is used for driving the display device to display the charging indication parameter according to the level signal of the charging indication parameter sent by the controller.

4. The electric vehicle charger according to claim 1, wherein the power supply module comprises a rectifier bridge stack, an energy storage capacitor, a transformer module and a power supply output end which are connected in sequence;

the input end of the rectifier bridge stack is connected with a power supply system, and the output end of the rectifier bridge stack is connected with the energy storage capacitor and the transformer module; the power supply output end is used for outputting a power supply; the transformer module comprises a power chip and a transformer unit connected with the power chip;

the rectifier bridge stack is used for rectifying alternating current commercial power output by the power supply system to output direct current;

the transformer module is used for transforming the direct current and outputting the direct current from the power supply output end so as to supply power to the control module, the charging module and the display module.

5. The electric vehicle charger of claim 1, wherein the controller comprises a trigger interface and a detection interface;

the trigger circuit is connected with the trigger interface, and the detection circuit is connected with the detection interface.

6. The electric vehicle charger according to claim 5, wherein the trigger circuit comprises at least one trigger switch;

the trigger switch is used for responding to the charging confirmation operation of the battery to be charged and sending the confirmation signal to the controller.

7. The electric vehicle charger according to claim 5, wherein the detection circuit comprises a voltage divider circuit, an input end of the voltage divider circuit is used for being connected with an output end of the battery to be charged, and an output end of the voltage divider circuit is used for being connected with the detection interface;

the voltage division circuit is used for acquiring a voltage signal of the battery to be charged and generating the voltage signal to the controller through the detection interface;

the controller is used for generating a charging indication parameter of the battery to be charged according to the voltage signal.

8. The electric vehicle charger of claim 1, further comprising a heat dissipation module coupled to the control module;

the heat dissipation module comprises a heat dissipation driving circuit and a heat dissipation unit;

the heat dissipation driving circuit is connected with the controller and used for conducting heat dissipation processing on the electric vehicle charger through the heat dissipation unit under the driving of the controller.

9. A charging pile, characterized in that the charging pile is provided with the electric vehicle charger according to any one of claims 1 to 8.

10. A charging management system, characterized in that the charging management system is provided with the charging pile of claim 9.

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