CN219085053U

CN219085053U - Full-automatic detector of electric vehicle charger

Info

Publication number: CN219085053U
Application number: CN202320102096.7U
Authority: CN
Inventors: 王海峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-05-26
Anticipated expiration: 2033-02-02

Abstract

The utility model relates to the technical field of detection equipment of electric vehicle chargers, in particular to a full-automatic detector of an electric vehicle charger, which comprises a shell, wherein a circuit board is arranged in the shell, a main control circuit is arranged on the circuit board, and one end of the circuit board is connected with a power supply contact point of the electric vehicle charger through a wire; the automatic charging circuit is used for realizing the power failure during the automatic charging, and the automatic switching-on circuit is used for controlling the disconnection of the battery car and the charger; the charger is automatically disconnected when the voltage of the charger is high, and the charger is automatically charged when the charging is normal; when the charger is abnormally charged, an alarm is realized; the automatic detection of the charger of the electric vehicle can be realized.

Description

Full-automatic detector of electric vehicle charger

Technical Field

The utility model relates to the technical field of detection equipment of electric vehicle chargers, in particular to a full-automatic detector of an electric vehicle charger.

Background

The electric vehicle is used as a travel tool for current people. The battery is used as a power source, so that the electric vehicle can be suitable for short-distance traffic in cities, is greatly convenient for people to travel, and is widely used. When the electric vehicle is used, the storage battery needs to be charged. The quality of the battery car charger on the market is good and bad, and when the battery car charger with poor quality is used, the charging procedure and the service life of the battery car are greatly influenced. When the traditional storage battery detector is connected with the battery pack of the electric vehicle, only functions such as the residual electric quantity voltage value of the battery pack are displayed; for the timing function, only the timing can be fixed, and the power supply is disconnected after the timing time is reached. There is therefore a need for a device that enables automatic detection of a charger.

Disclosure of Invention

The utility model aims to provide a full-automatic detector of an electric vehicle charger, aiming at the defects and the shortcomings of the prior art.

The utility model relates to a full-automatic detector of an electric vehicle charger, which comprises a shell, wherein a circuit board is arranged in the shell, a main control circuit is arranged on the circuit board, and one end of the circuit board is connected with a power supply contact point of the electric vehicle charger through a wire.

Further, the main control circuit comprises an inductor L1, and the inductor L1 is connected with the 1 st to 4 th pin ends of the chip II; the 7 th to 8 th pin end of the chip II is connected with an inductor L2 in series, and the other end of the inductor L2 is connected with a capacitor C4 in parallel; the 5 th pin end of the chip II is connected with a diode D4 in series, the other end of the diode D4 is connected with a capacitor C4 in parallel, one end of the capacitor C4 is connected with a first lead in parallel, and the other end of the capacitor C4 is connected with a +5-12V voltage end; one end of the triode Q0 is connected with the capacitor C4 in parallel, the other end of the triode Q0 is connected with the resistor R2 in series, the other end of the resistor R2 is connected with the diode D4 in parallel, and the capacitor C3 is connected between the chip II and the diode D4 in parallel; diode D3 is connected in parallel between the second chip II and the first lead;

the resistor C5 and the resistor R4 are connected in parallel between the triode Q0 and the first lead; the diode D5 and the capacitor C6 are connected in parallel between the resistor R4 and the first lead;

the capacitor C7 is connected in parallel between the 1 st pin and the 2 nd pin of the chip I; the 3 rd pin and the 4 th pin of the chip I are respectively connected with a resistor R7 and a resistor R6;

the resistor R5 is connected with the 8 th pin of the chip I in series, and the other end of the resistor R5 is connected with the triode Q1; the other end of the triode Q1 is connected with a resistor R8 in series, the other end of the resistor R8 is connected with one end of the triode Q2, and the other end of the triode Q1 is connected with a first lead in parallel; the other end of the triode Q2 is connected with the capacitor C4 in parallel, and the other end of the triode Q2 is connected with the capacitor C8 in parallel; the resistor R9 is connected in parallel between the triode Q2 and the first lead; the other end of the capacitor C8 is connected with the resistor R10 and the diode D6 in series, and the other end of the diode D6 is connected with the first lead in parallel; the diode D7 is connected with the diode D6 in parallel, and the other end of the diode D7 is connected with the triode Q3;

the capacitor C2 is connected with the diode D1 in series and then is connected with a power supply positive electrode contact point of the charger, and the other end of the capacitor C2 is connected with the second lead; the diode D2, the resistor R3 and the light emitting diode D8 are connected in series, one end of the diode D2 is connected with the diode D1 in parallel, the light emitting diode D8 is connected with the triode Q3 in parallel, and the other end of the triode Q3 is connected with the first lead in parallel;

the other end of the triode Q3 is connected with a resistor R11 in parallel, and the other end of the resistor R11 is connected with a +5-12V voltage end; one end of the light emitting diode D9 is connected with the triode Q3, the other end of the light emitting diode D9 is connected with the triode Q4, the other end of the triode Q4 is connected with the first conducting wire in parallel, the other end of the triode Q4 is connected with the relay KA1, and the other end of the relay KA1 is connected with the +5-12V voltage end;

the resistor R12 is connected in parallel between the triode Q3 and the triode Q5, and the other end of the triode Q5 is connected with the buzzer H1.

After the structure is adopted, the utility model has the beneficial effects that: the full-automatic detector for the electric vehicle charger realizes the power failure during automatic charging through the detection circuit, and the disconnection between the electric vehicle and the charger is controlled by utilizing the automatic conduction circuit; the charger is automatically disconnected when the voltage of the charger is high, and the charger is automatically charged when the charging is normal; when the charger is abnormally charged, an alarm is realized; the automatic detection of the charger of the electric vehicle can be realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the utility model, if necessary:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a control circuit of the present utility model;

FIG. 3 is an enlarged left portion of FIG. 2;

FIG. 4 is an enlarged right portion of FIG. 2;

reference numerals illustrate:

a housing 1; a wiring board 2; and a control board 3.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, a full-automatic detector for an electric vehicle charger according to this embodiment includes a housing 1, a circuit board 2 is disposed in the housing 1, a main control circuit 3 is disposed on the circuit board 2, one end of the circuit board 2 is connected to a power supply contact point of the electric vehicle charger 5 through a wire, and the other end of the circuit board 2 is connected to a power supply source 4 through a wire.

As shown in fig. 2-4, the main control circuit 3 includes an inductor L1, where the inductor L1 is connected to the 1 st-4 th pin of the chip II; the 7 th to 8 th pin end of the chip II is connected with an inductor L2 in series, and the other end of the inductor L2 is connected with a capacitor C4 in parallel; the 5 th pin end of the chip II is connected with a diode D4 in series, the other end of the diode D4 is connected with a capacitor C4 in parallel, one end of the capacitor C4 is connected with a first lead in parallel, and the other end of the capacitor C4 is connected with a +5-12V voltage end; one end of the triode Q0 is connected with the capacitor C4 in parallel, the other end of the triode Q0 is connected with the resistor R2 in series, the other end of the resistor R2 is connected with the diode D4 in parallel, and the capacitor C3 is connected between the chip II and the diode D4 in parallel; diode D3 is connected in parallel between the second chip II and the first lead;

The working principle of the utility model is as follows:

in this design, a circuit board 2 is provided in a housing 1, and a main control circuit 3 is provided on the circuit board 2. During detection, one end of the circuit board 2 of the design is connected with a power supply contact point of the electric vehicle charger 5 through a wire, the other end of the circuit board 2 is connected with a 5-12V power supply source 4, and then an alarm circuit of the design is utilized to alarm through a buzzer. Therefore, full-automatic detection of the electric vehicle charger can be realized.

In the design, a detection circuit is formed by a diode D1, a capacitor C2, a resistor R1, a diode D2, a resistor R3, a resistor R13, a diode D8 and a triode Q3, and when automatic charging is problematic, automatic power-off can be realized.

In this design, resistance R11, diode D9, triode Q4, relay KA1 constitute automatic conduction circuit, can realize controlling the disconnection of storage battery car and charger.

In this design, resistance R12, triode Q5 constitute alarm circuit, and when the charger charges abnormally, reports to the police through buzzer H1.

In this design, resistance R5, triode Q1, resistance R8, triode Q2 charge (cut off for two three seconds) for electric capacity c8, resistance R10, diode D7, three seconds cut off the power supply with automatic detection circuitry cooperation, can automatic disconnection when the voltage of charger is high, automatic charging when normally charging.

In the design, a chip I, a resistor R6 and a resistor R7 form a detection time circuit, and the chip I is a time detection chip.

In this design, resistor R4, diode D5, and capacitor C6 form an anti-interference circuit.

In the design, a resistor R2 and a three-terminal voltage-stabilizing tube Q0 supply power for a chip II; and C3 is an oscillation capacitor, D3 is a diode fed back to the ground, D4 is a diode in positive orientation, C4 is a filter capacitor, L1 is an impedance inductor, L2 is an oscillation inductor, a rectifier bridge circuit is formed, and oscillation is formed inside a chip II.

The utility model has the following advantages:

(1) And the quality of the battery car charger in the market is automatically monitored.

(2) And the charger matched with the battery car automatically charges, and when the output voltage and the output current or the output voltage of the charger are not matched with the output voltage of the original charger, the power is automatically cut off.

(3) In the charging process, the automatic monitoring is fully automatic from charging to charging completion.

(4) The output voltage of the charger is too high, and the power-off alarm can be automatically given.

(5) If the storage battery is lack of water or the storage battery is aged, the charger is controlled to automatically turn the lamp, and if the charger is full of the storage battery and the lamp is not turned when the charging is not stopped, the charger is controlled to automatically turn the lamp into a floating state.

This design compares with traditional detector: the product detects whether the charger is normal or not every other period and whether the voltage is normal or not. And like products on the market can only time the power supply. Therefore, the design product is the 2 nd guarantee of the battery pack.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A full-automatic detector of electric vehicle charger, its characterized in that: the electric vehicle charger comprises a shell, wherein a circuit board is arranged in the shell, a main control circuit is arranged on the circuit board, and one end of the circuit board is connected with a power supply contact point of the electric vehicle charger through a wire.

2. The fully automatic detector of an electric vehicle charger of claim 1, wherein: the main control circuit comprises an inductor L1, and the inductor L1 is connected with the 1 st to 4 th pin ends of the chip II; the 7 th to 8 th pin end of the chip II is connected with an inductor L2 in series, and the other end of the inductor L2 is connected with a capacitor C4 in parallel; the 5 th pin end of the chip II is connected with a diode D4 in series, the other end of the diode D4 is connected with a capacitor C4 in parallel, one end of the capacitor C4 is connected with a first lead in parallel, and the other end of the capacitor C4 is connected with a +5-12V voltage end; one end of the triode Q0 is connected with the capacitor C4 in parallel, the other end of the triode Q0 is connected with the resistor R2 in series, the other end of the resistor R2 is connected with the diode D4 in parallel, and the capacitor C3 is connected between the chip II and the diode D4 in parallel; diode D3 is connected in parallel between the second chip II and the first lead;