Electric vehicle charger with remote communication function

Abstract

The utility model provides an electric vehicle charger with a remote communication function, which comprises a charger shell, and a charger circuit module is arranged in the charger shell. The charger circuit module comprises a relay circuit, a front rectification filter circuit, an inversion transformation circuit, a rear rectification filter circuit, a signal control circuit, a current and voltage acquisition circuit, a voltage output circuit and a 4G communication control circuit. The beneficial effects of the charger are that the 4G remote communication module is implanted in the charger, remote transmission and remote control of charging data can be realized, and random setting of charging start time, random setting of charging duration and remote closing can be realized through binding of a mobile phone APP.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric vehicle charger field, especially a kind of electric vehicle charger with remote communication function. BACKGROUND

[0002] Existing electric vehicle charger only transforms input 220V mains voltage into suitable DC voltage after rectification and transformation, to realize charging battery.The three-stage charging mode is also realized, but single function, charging time cannot be set, transformer is still in working state after full, cannot be completely turned off;Battery temperature state is also unmonitorable, and safety is not enough.

[0003] The defects of prior art are: charging current is not adjustable, charging speed is slow;Charging time cannot be pre-arranged and set;At the end of charging, main circuit cannot be powered off, and safety is not enough;Battery temperature cannot be monitored in real time;Charging state cannot be remotely viewed;Charging cannot be remotely turned off and turned on. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a kind of electric vehicle charger with remote communication function to solve at least one problem in the prior art.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A kind of electric vehicle charger with remote communication function, including charger shell, the charger circuit module is installed in the charger shell interior, charger circuit module includes relay circuit, front rectification filter circuit, inverter transformer circuit, rear rectification filter circuit, signal control circuit, current voltage acquisition circuit, voltage output circuit and 4G communication control circuit, the one end of relay circuit is connected with AC220V, the other end of relay circuit is connected with front rectification filter circuit, signal control circuit respectively, front rectification filter circuit is sequentially connected with inverter transformer circuit, rear rectification filter circuit and voltage output circuit, inverter transformer circuit, voltage output circuit and 4G communication control circuit are connected with signal control circuit, signal control circuit is also connected to rear rectification filter circuit by current voltage acquisition circuit.

[0007] Further, the relay circuit includes fuse F1, relay SW1, diode D5 and triode Q2, the one end of fuse F1 is connected with AC220V, the other end of fuse F1 is connected with power module AD1 and relay SW1 respectively, relay SW1 is connected with diode D5 and triode Q2 respectively, triode Q2 is also connected with signal control circuit.

[0008] Further, the front rectifier filter circuit includes diode D1, diode D2, diode D3, diode D4 and capacitor C1, one end of diode D1 is connected to relay SW1, diode D3 respectively, the other end of diode D1 is connected to diode D4, capacitor C1 and inverter transformer circuit respectively, one end of diode D3 is also connected to diode D2, the other end of diode D4 is also connected to AC220V.

[0009] Further, the inverter transformer circuit includes transformer T1, MOS tube Q1 and resistor R1, transformer T1 is connected to diode D1, MOS tube Q1 and the rear rectifier filter circuit respectively, MOS tube Q1 is connected to signal control circuit and resistor R1 respectively.

[0010] Further, the rear rectifier filter circuit includes diode D7, capacitor C2, rectifier diode D8 and capacitor C3, one end of diode D7, rectifier diode D8 and capacitor C3 is connected to transformer T1, the other end of diode D7 is connected to ground through capacitor C2, the other end of rectifier diode D8 is connected to capacitor C3 and voltage output circuit respectively.

[0011] Further, the voltage output circuit includes resistor R3, resistor R4, resistor R5 and charging plug, one end of resistor R3 is connected to rectifier diode D8 and charging plug respectively, the other end of resistor R3 is connected to current voltage acquisition circuit and resistor R4 respectively, one end of resistor R4 and resistor R5 is connected to transformer T1, the other end of resistor R5 is connected to charging plug, charging plug is also connected to current voltage acquisition circuit and signal control circuit respectively.

[0012] Further, the current voltage acquisition circuit includes single-chip microcomputer U3, resistor R6 and thermistor TR1, single-chip microcomputer U3 is connected to optocoupler, charging plug, resistor R6 and thermistor TR1 respectively.

[0013] Further, the signal control circuit includes single-chip microcomputer U2, resistor R2 and resistor R7, single-chip microcomputer U2 is connected to MOS tube Q1, 4G communication control circuit, resistor R2 and resistor R7 respectively, resistor R2 is also connected to triode Q2, resistor R7 is also connected to charging plug.

[0014] Further, the 4G communication control circuit includes communication module U5, communication module U5 is built-in SIM card and external antenna receiving circuit, communication module U5 is connected to single-chip microcomputer U2 respectively.

[0015] Further, the charger shell includes upper cover and lower cover, the upper cover is arranged above the lower cover, and the two form a rectangular shell structure, the rectangular shell structure is used for placing the charger circuit module, four corners of the bottom of the upper cover are respectively provided with a positioning column, four corners of the inside of the lower cover are respectively provided with a positioning sleeve, the positioning column and the positioning sleeve are used in cooperation, and a hole is arranged on each side of the lower cover.

[0016] Compared with the prior art, the electric vehicle charger with remote communication function has the following advantages:

[0017] (1) The electric vehicle charger with remote communication function has the following advantages:

[0018] (2) The electric vehicle charger with remote communication function has the following advantages:

[0019] (3) The electric vehicle charger with remote communication function has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0021] Fig. 1 The charger circuit module principle diagram for the embodiment of the present application;

[0022] Fig. 2 The charger circuit module circuit diagram for the embodiment of the present application;

[0023] Fig. 3 The charger housing schematic diagram for the embodiment of the present application;

[0024] Fig. 4 The charger housing explosion schematic diagram for the embodiment of the present application.

[0025] Legend:

[0026] 1, charger shell; 11, upper cover; 111, positioning column; 12, lower cover; 121, positioning sleeve; 122, let go of hole; 21, relay circuit; 22, front rectifier filter circuit; 23, inverter transformer circuit; 24, rear rectifier filter circuit; 25, signal control circuit; 26, current voltage acquisition circuit; 27, voltage output circuit; 28, 4G communication control circuit. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0030] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0031] As Figs. 1 to 4As shown, a kind of electric vehicle charger with remote communication function, including charger housing 1, the inside of the charger housing 1 is equipped with charger circuit module, charger circuit module includes relay circuit, front rectifier filter circuit, inverter transformer circuit, rear rectifier filter circuit, signal control circuit, current voltage acquisition circuit, voltage output circuit and 4G communication control circuit, the one end of relay circuit is connected with AC220V, the other end of relay circuit is connected with front rectifier filter circuit, signal control circuit respectively, front rectifier filter circuit is connected with inverter transformer circuit, rear rectifier filter circuit and voltage output circuit in turn, inverter transformer circuit, voltage output circuit and 4G communication control circuit are connected with signal control circuit, signal control circuit is also connected to rear rectifier filter circuit through current voltage acquisition circuit.

[0032] In a preferred embodiment of the utility model, the relay circuit includes fuse F1, relay SW1, diode D5 and triode Q2, the one end of fuse F1 is connected with AC220V, the other end of fuse F1 is connected with power module AD1 and relay SW1 respectively, relay SW1 is connected with diode D5 and triode Q2 respectively, triode Q2 is also connected with signal control circuit.In this embodiment, fuse F1 is for preventing short circuit, relay SW1 and diode D5 and triode Q2 constitute the control circuit of relay, and the closing and closing of coil are controlled by K1 pin of single-chip microcomputer U2.D5 prevents reverse voltage from breaking through triode.Electric power module AD1 is connected with capacitor C4 and single-chip microcomputer U1 respectively, and electric power module AD1 and single-chip microcomputer U1 constitute auxiliary power supply, and power supply is provided for single-chip microcomputer and communication module.

[0033] In a preferred embodiment of the utility model, the front rectifier filter circuit includes diode D1, diode D2, diode D3, diode D4 and capacitor C1, the one end of diode D1 is connected with relay SW1 and diode D3 respectively, the other end of diode D1 is connected with diode D4, capacitor C1 and inverter transformer circuit respectively, the one end of diode D3 is also connected with diode D2, and the other end of diode D4 is also connected with AC220V.In this embodiment, four diodes D1, D2, D3 and D4 constitute full-bridge rectifier circuit, rectify 220V alternating current, and after filtering by capacitor C1, stable DC high voltage is formed.

[0034] In a preferred embodiment of the utility model, the inverter transformer circuit includes transformer T1, MOS tube Q1 and resistor R1, the transformer T1 is connected with diode D1, MOS tube Q1 and rear rectifier filter circuit respectively, MOS tube Q1 is connected with signal control circuit and resistor R1 respectively, in this embodiment, transformer T1, MOS tube Q1 and resistor R1 constitute inverter and transformer circuit, and R1 is the current acquisition of alternating current end.

[0035] In the preferred embodiment of the utility model, the back rectification filter circuit includes diode D7, capacitor C2, rectifier diode D8 and capacitor C3, the diode D7, rectifier diode D8, capacitor C3 one end all connect transformer T1, diode D7 other end connects ground through capacitor C2, and rectifier diode D8 other end connects capacitor C3 and voltage output circuit respectively. In this embodiment, diode D7 and capacitor C2 are as secondary auxiliary power supply, and provide power supply for U3 single-chip microcomputer. Rectifier diode D8 cooperates with the filtering of capacitor C3, and forms stable DC output.

[0036] In the preferred embodiment of the utility model, the voltage output circuit includes resistance R3, resistance R4, resistance R5 and charging plug, one end of resistance R3 connects rectifier diode D8 and charging plug respectively, the other end of resistance R3 connects current voltage acquisition circuit and resistance R4 respectively, one end of resistance R4 and resistance R5 connects transformer T1, the other end of resistance R5 connects charging plug, and the charging plug also connects current voltage acquisition circuit and signal control circuit respectively, in this embodiment, single-chip microcomputer U1 is divided by resistance R3 and resistance R4 to acquire and confirm the output voltage value; the current value is identified by the voltage of resistance R5.

[0037] In the preferred embodiment of the utility model, the current voltage acquisition circuit includes single-chip microcomputer U3, resistance R6 and thermistor TR1, the single-chip microcomputer U3 connects optocoupler, charging plug, resistance R6 and thermistor TR1 respectively, in this embodiment, the voltage division of resistance R6 and thermistor TR1 calculates the working temperature of the charger itself, and then the information is transmitted to the front-end single-chip microcomputer U2 through the isolation transmission of optocoupler U4. The PWM pin of single-chip microcomputer U2 controls the closing and opening time length of MOS tube Q1, so that the voltage and current of secondary output are regulated.

[0038] In the preferred embodiment of the utility model, the signal control circuit includes single-chip microcomputer U2, resistance R2 and resistance R7, the single-chip microcomputer U2 connects MOS tube Q1, 4G communication control circuit, resistance R2 and resistance R7 respectively, resistance R2 also connects triode Q2, and resistance R7 also connects charging plug. In this embodiment, the T1 port of single-chip microcomputer U2 is directly connected with the thermistor of battery compartment, and is divided by resistance R7, so that the real-time temperature of battery can be calculated; the charging state is adjusted in time by monitoring the temperature change of battery under charging, and the information of abnormal over-temperature is reminded to user in time, so that hidden danger is avoided.

[0039] In a preferred embodiment of the utility model, the 4G communication control circuit includes a communication module U5, the communication module U5 is built-in with a SIM card and an external antenna receiving circuit, the communication module U5 is connected with the single-chip microcomputer U2 respectively, in this embodiment, the communication module U5 is built-in with a SIM card and an external antenna receiving circuit, realizing the remote transmission of data. The DATA port of the single-chip microcomputer U2 and the communication module DATA port of U5 transmit charging information and control signals, realize the remote real-time viewing of the charging data of the electric vehicle battery at the user end, the setting of the charging time, and the remote closing and opening of the operation of the charger at any time. When closing the charging, the relay SW1 is disconnected, and the whole rear high voltage and transformer stop working, which reduces the power consumption of the whole machine and greatly improves the safety of the charger.

[0040] In a preferred embodiment of the utility model, the charger housing 1 includes an upper cover 11 and a lower cover 12, the upper cover 11 is arranged above the lower cover 12, and the two form a cuboid shell structure, the cuboid shell structure is used for placing a charger circuit module, the bottom four corners of the upper cover 11 are respectively provided with a positioning column 111, the inside four corners of the lower cover 12 are respectively provided with a positioning sleeve 121, the positioning column 111 is used in cooperation with the positioning sleeve 121, and a leaving hole 122 is formed in the two sides of the lower cover 12, in actual use, the positioning column 111 is connected with the positioning sleeve 121 one by one, the installation of the upper cover 11 and the lower cover 12 is realized, and the leaving hole 122 is used for installing the charger housing 1 and wiring.

[0041] Advantages of the utility model:

[0042] 1. The charger is implanted with a 4G remote communication module in the charger, remote transmission and remote control of charging data can be realized, through the binding of a mobile phone APP, the starting time of charging can be randomly set, the charging time length can be randomly set, and remote closing can be realized.

[0043] 2. Through the battery temperature monitoring function, the charging current, the charging voltage and the charging time length can be adjusted according to the battery temperature condition; under low temperature, the battery can be pre-charged with small current first, and then the current can be increased slowly, so that the service life of the battery is guaranteed; the charging can be closed in time when the battery temperature is high, so that thermal runaway is avoided.

[0044] 3. Through the opening and closing of the relay of the AC end, the main circuit is completely powered off under the condition of charging completion and abnormality, so that the charging safety is guaranteed and the loss is reduced.

[0045] Working principle of the electric vehicle charger with remote communication function:

[0046] AC220 is connected, the signal control circuit works, starts receiving communication circuit information, whether the starting charging time is reached, after receiving the charging permission instruction, the relay circuit is opened.

[0047] 220V AC voltage after rectification filter circuit, output 300V DC voltage, through the signal control part circuit output PWM, control MOS tube open and close, the DC voltage is converted into high frequency AC, through the transformer conversion, the secondary becomes low voltage AC.

[0048] The transformer secondary AC through rectification filter, output for DC voltage and current collection, signal control part through adjusting the PWM width of transformer front end, realize the modulation of current and voltage, so as to meet the corresponding battery suitable parameters.

[0049] Current voltage acquisition circuit, also real-time monitoring of charger working temperature, in the case of abnormal, can feedback in time, signal control of single-chip microcomputer, close or adjust the charging parameters.

[0050] User mobile phone APP and 4G communication module intercommunication, communication circuit and signal control part communication association, can measure the current temperature of battery, and the monitoring of charging capacity, and return the data to the user mobile phone, the user can close and check the battery status at any time. Also can set the remaining charging time through APP, the charger end receives the information, and carries out the countdown working mode.

[0051] Need to explain is, the present application does not improve the control program, the control program and electrical devices involved are prior art.

[0052] The above only for the preferred embodiment of the present application has, and does not limit the present application, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. An electric vehicle charger with remote communication function, characterized in that: The charger circuit module is internally installed in the charger shell, and the charger circuit module comprises a relay circuit, a front rectification filter circuit, an inverter transformer circuit, a rear rectification filter circuit, a signal control circuit, a current voltage acquisition circuit, a voltage output circuit and a 4G communication control circuit.

2. The electric vehicle charger with remote communication function according to claim 1, characterized in that: The relay circuit comprises a fuse F1, a relay SW1, a diode D5 and a triode Q2, one end of the fuse F1 is connected with AC220V, the other end of the fuse F1 is connected with a power module AD1 and the relay SW1 respectively, the relay SW1 is connected with the diode D5 and the triode Q2 respectively, and the triode Q2 is further connected with the signal control circuit.

3. The electric vehicle charger with remote communication function according to claim 2, characterized in that: The front rectification filter circuit comprises a diode D1, a diode D2, a diode D3, a diode D4 and a capacitor C1, one end of the diode D1 is connected with the relay SW1 and the diode D3 respectively, the other end of the diode D1 is connected with the diode D4, the capacitor C1 and the inverter transformer circuit respectively, one end of the diode D3 is further connected with the diode D2, and the other end of the diode D4 is further connected with AC220V.

4. The electric vehicle charger with remote communication function according to claim 3, characterized in that: The inverter transformer circuit comprises a transformer T1, a MOS tube Q1 and a resistor R1, the transformer T1 is connected with the diode D1, the MOS tube Q1 and the rear rectification filter circuit respectively, and the MOS tube Q1 is connected with the signal control circuit and the resistor R1 respectively.

5. The electric vehicle charger with remote communication function according to claim 4, characterized in that: The rear rectification filter circuit comprises a diode D7, a capacitor C2, a rectifier diode D8 and a capacitor C3, one end of the diode D7, the rectifier diode D8 and the capacitor C3 is connected with the transformer T1, the other end of the diode D7 is connected with the ground through the capacitor C2, and the other end of the rectifier diode D8 is connected with the capacitor C3 and the voltage output circuit respectively.

6. The electric vehicle charger with remote communication function according to claim 5, characterized in that: The voltage output circuit comprises a resistor R3, a resistor R4, a resistor R5 and a charging plug, one end of the resistor R3 is connected with the rectifier diode D8 and the charging plug respectively, the other end of the resistor R3 is connected with the current voltage acquisition circuit and the resistor R4 respectively, one end of the resistor R4 and the resistor R5 is connected with the transformer T1 respectively, the other end of the resistor R5 is connected with the charging plug, and the charging plug is further connected with the current voltage acquisition circuit and the signal control circuit respectively.

7. The electric vehicle charger with remote communication function according to claim 6, characterized in that: The current voltage acquisition circuit comprises a single-chip microcomputer U3, a resistor R6 and a thermistor TR1, and the single-chip microcomputer U3 is connected with an optical coupler, the charging plug, the resistor R6 and the thermistor TR1 respectively.

8. The electric vehicle charger with remote communication function according to claim 7, characterized in that: The signal control circuit comprises a single-chip microcomputer U2, a resistor R2 and a resistor R7, and the single-chip microcomputer U2 is connected with the MOS tube Q1, a 4G communication control circuit, the resistor R2 and the resistor R7 respectively, the resistor R2 is further connected with the triode Q2, and the resistor R7 is further connected with the charging plug.

9. The electric vehicle charger with remote communication function according to claim 8, characterized in that: The 4G communication control circuit comprises a communication module U5, the communication module U5 is internally provided with a SIM card and an external antenna receiving circuit, and the communication module U5 is connected with the single-chip microcomputer U2.

10. The electric vehicle charger with remote communication function according to claim 1, characterized in that: The charger housing comprises an upper cover and a lower cover, the upper cover is arranged above the lower cover, and the upper cover and the lower cover form a cuboid housing structure, the cuboid housing structure is used for placing a charger circuit module, four corners of the bottom of the upper cover are respectively provided with a positioning column, four corners of the inside of the lower cover are respectively provided with a positioning sleeve, the positioning column and the positioning sleeve are used in cooperation, and a gap hole is further arranged on each side of the lower cover.

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