CN218767143U - Fill electric pile detection circuitry and simulator - Google Patents
Fill electric pile detection circuitry and simulator Download PDFInfo
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- CN218767143U CN218767143U CN202222678732.9U CN202222678732U CN218767143U CN 218767143 U CN218767143 U CN 218767143U CN 202222678732 U CN202222678732 U CN 202222678732U CN 218767143 U CN218767143 U CN 218767143U
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Abstract
The utility model discloses a fill electric pile detection circuitry and simulator, this circuit includes: the communication unit is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile; the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit; the first end of the communication unit is connected with the cp signal detection point, the second end of the communication unit is connected with a pin CE1 corresponding to the cp signal on the detection chip U1, the third end of the communication unit is connected with the cc signal detection point, and the fourth end of the communication unit is connected with a pin CE3 corresponding to the cc signal on the detection chip U1, so that the reliability and the efficiency of charging pile detection are improved.
Description
Technical Field
The application relates to the technical field of charging piles, in particular to a charging pile detection circuit and a simulator.
Background
Along with fill quick popularization and the popularization of electric pile, fill electric pile and need carry out the function detection after production or installation, owing to use the car real vehicle test, waste time and energy, and then need specific testing arrangement to detect. However, the testing device in the prior art has low reliability and low detection efficiency.
How to provide a circuit that can improve the reliability and the efficiency that fill electric pile and detect is the technical problem that remains to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fill electric pile detection circuitry for solve and fill the reliability and the inefficiency technical problem that electric pile detected among the prior art. The circuit includes:
the communication unit is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile;
the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit;
the first end of the communication unit is connected with the cp signal detection point, the second end of the communication unit is connected with a pin CE1 corresponding to the cp signal on a detection chip U1, the third end of the communication unit is connected with the cc signal detection point, the fourth end of the communication unit is connected with a pin CE3 corresponding to the cc signal on the detection chip U1, the cc signal is a charging gun connection confirmation signal, and the cp signal is a control charging signal.
In some embodiments, the communication unit includes a capacitor C4, a resistor R1, a diode D1, an interface J1, a resistor R6, a resistor R7, a resistor R8, a diode D3, a diode D4, and a transistor Q1, wherein,
the first end of the capacitor C4 is connected with the second end of the communication unit, the common junction point of the first end of the resistor R1 and the cathode of the diode D1 is connected with the first end of the capacitor C4, the common junction point of the first pair of internal input ends of the interface J1 is connected with the anode of the diode D1, the first end of the resistor R6, the first end of the resistor R7 and the first end of the resistor R8 are connected with the second end of the base of the triode Q1, the common junction point of the cathode of the diode D3, the anode of the diode D4 and the base of the triode Q1 is connected with the second end of the resistor R8, the second end of the resistor R8 is connected with the fourth end of the communication unit, the first external input end and the second external input end of the interface J1 are respectively the first end and the third end of the communication unit, and the second end of the capacitor C4, the second end of the resistor R1, the second end of the resistor R6, the second end of the resistor R7, the anode of the diode D3, the cathode of the diode D4 and the emitter electrode of the triode Q1 are all grounded.
In some embodiments, the communication unit further comprises a resistor R2, a resistor R3, and an interface J2, wherein,
the first end of the resistor R2 is connected with the second end of the communication unit, the resistor R3 is connected between the second end of the resistor R2 and the first pair of inner input ends of the interface J2 in series, the external input end of the interface J2 is connected with the external manual switch, and the second pair of inner input ends of the interface J2 is grounded.
In some embodiments, the communication unit further comprises a diode D2, a resistor R4, a resistor R5, and a capacitor C3, wherein,
the cathode of the diode D2 is connected with the second end of the communication unit, the anode of the diode D2 is connected with the first end of the resistor R4, the second end of the resistor R4 is grounded through the resistor R5, the second end of the resistor R4 and the first end of the capacitor C3 are connected to the pin CE2 corresponding to the reserved detection end on the detection chip U1 in a common mode, and the second end of the capacitor C3 is grounded.
In some embodiments, the circuit further comprises:
the signal indicating unit is used for indicating CC signals and CP signals, a first end of the signal indicating unit is connected with a power supply VCC, a second end of the signal indicating unit is connected with a pin LED _ CC used for indicating the CC signals on the detection chip U1, a third end of the signal indicating unit is connected with a pin LED _ CP used for indicating the CP signals on the detection chip U1, and a fourth end of the signal indicating unit is grounded.
In some embodiments, the signal indicating unit includes an indicator light LED1, an indicator light LED2, a resistor R20, a resistor R21, a transistor Q6, and a transistor Q7, wherein,
the positive pole of pilot lamp LED1 and the positive pole of pilot lamp LED2 connect in the first end of signal indication unit, triode Q6's collecting electrode is connected to pilot lamp LED 1's negative pole, and triode Q6's base is connected through resistance R20 the second end of signal indication unit, triode Q7's collecting electrode is connected to pilot lamp LED 2's negative pole, and triode Q7's base is connected through resistance R21 the third end of signal indication unit, triode Q6's projecting pole and triode Q7's projecting pole connect in the fourth end of signal indication unit altogether.
In some embodiments, the circuit further includes a resistor R22, a resistor R23, a resistor R24, a resistor R25, a resistor R26, and a resistor R27, the pin CE1 is connected to the detection chip U1 through the resistor R24 and the resistor R23 in sequence, the resistor R23 and the detection chip U1 are grounded through the resistor R22, the pin CE3 is connected to the pin CE2 through the resistor R27 and the resistor R26 in sequence, a first end of the resistor R25 is connected to the common node of the resistor R26 and the pin CE2, and a second end of the resistor R25 is grounded.
In some embodiments, the detection chip U1 has a model number of 15F2K60S2.
Correspondingly, the utility model also provides a fill electric pile and detect simulator, include as above the circuit, still include:
the display screen is used for displaying the detection parameters of the charging pile;
an external manual switch for manually switching the simulator;
the load interface is used for connecting an external adjustable load;
the current detection module is used for detecting load current;
and the voltage detection module is used for detecting the voltage of the charging pile LN bus.
In some embodiments, the sensed parameters include voltage, current, and power, and the load interface is a five-hole receptacle.
Through using above technical scheme, fill electric pile detection circuitry and include: the communication unit is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile; the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit; the first end of the communication unit is connected with the cp signal detection point, the second end of the communication unit is connected with a pin CE1 corresponding to the cp signal on a detection chip U1, the third end of the communication unit is connected with the cc signal detection point, and the fourth end of the communication unit is connected with a pin CE3 corresponding to the cc signal on the detection chip U1, so that the reliability and the efficiency of charging pile detection are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a charging pile detection circuit according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a communication unit in an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of the detection chip U1 in the embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a signal indication unit in an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a charging pile detection simulator provided by the embodiment of the utility model.
Detailed Description
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 a part of the embodiments of the present application, and not all of the 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 embodiment of the application provides a fill electric pile detection circuitry, as shown in fig. 1, include:
the communication unit 10 is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile;
the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit 10;
the first end of the communication unit 10 is connected to the cp signal detection point, the second end of the communication unit 10 is connected to the pin CE1 of the detection chip U1 corresponding to the cp signal, the third end of the communication unit 10 is connected to the cc signal detection point, the fourth end of the communication unit 10 is connected to the pin CE3 of the detection chip U1 corresponding to the cc signal, the cc signal is a charging gun connection confirmation signal, and the cp signal is a charging control signal.
In order to ensure the reliability of the communication unit 10, in some embodiments of the present application, as shown in fig. 2, the communication unit 10 includes a capacitor C4, a resistor R1, a diode D1, an interface J1, a resistor R6, a resistor R7, a resistor R8, a diode D3, a diode D4, and a transistor Q1, wherein,
the first end of the capacitor C4 is connected with the second end of the communication unit 10, the common junction point of the first end of the resistor R1 and the cathode of the diode D1 is connected with the first end of the capacitor C4, the common junction point of the first pair of internal input ends of the interface J1 is connected with the anode of the diode D1, the first end of the resistor R6 is connected with the second pair of internal input ends of the interface J1, the first end of the resistor R7 and the first end of the resistor R8 are connected, the cathode of the diode D3, the common junction point of the anode of the diode D4 and the base of the triode Q1 is connected with the second end of the resistor R8, the second end of the resistor R8 is connected with the fourth end of the communication unit 10, the first pair of external input ends and the second pair of external input ends of the interface J1 are respectively the first end and the third end of the communication unit 10, the second end of the capacitor C4, the second end of the resistor R1, the second end of the resistor R6, the second end of the resistor R7, the anode of the diode D3, the cathode of the diode D4, and the emitter electrode of the triode Q1 are all grounded.
In this embodiment, the interface J1 provides an external interface connected to the cc signal detection point and the cp signal detection point in the charging pile.
In order to improve the reliability of the communication unit 10, in some embodiments of the present application, as shown in fig. 2, the communication unit 10 further includes a resistor R2, a resistor R3, and an interface J2, wherein,
the first end of the resistor R2 is connected with the second end of the communication unit 10, the resistor R3 is connected in series between the second end of the resistor R2 and the first pair of inner input ends of the interface J2, the external input end of the interface J2 is connected with the external manual switch, and the second pair of inner input ends of the interface J2 is grounded.
In order to improve the reliability of the communication unit 10, in some embodiments of the present application, as shown in fig. 2, the communication unit 10 further includes a diode D2, a resistor R4, a resistor R5, and a capacitor C3, wherein,
the cathode of the diode D2 is connected to the second end of the communication unit 10, the anode of the diode D2 is connected to the first end of the resistor R4, the second end of the resistor R4 is grounded via the resistor R5, the second end of the resistor R4 and the first end of the capacitor C3 are connected to the pin CE2 corresponding to the reserved detection end on the detection chip U1, and the second end of the capacitor C3 is grounded.
To facilitate the user to know the signal detection status, in some embodiments of the present application, the circuit further includes:
the signal indicating unit is used for indicating CC signals and CP signals, the first end of the signal indicating unit is connected with a power supply VCC, the second end of the signal indicating unit is connected with a pin LED _ CC used for indicating the CC signals on the detection chip U1, the third end of the signal indicating unit is connected with a pin LED _ CP used for indicating the CP signals on the detection chip U1, and the fourth end of the signal indicating unit is grounded.
In some embodiments, the positions of pin LED _ CC and pin LED _ CP on detection chip U1 are as shown in fig. 3.
In order to ensure the reliability of the signal indicating unit, in some embodiments of the present application, as shown in fig. 4, the signal indicating unit includes an indicator light LED1, an indicator light LED2, a resistor R20, a resistor R21, a transistor Q6, and a transistor Q7, wherein,
the positive pole of pilot lamp LED1 and the positive pole of pilot lamp LED2 connect in the first end of signal indication unit altogether, triode Q6's collecting electrode is connected to pilot lamp LED 1's negative pole, triode Q6's base passes through the second end that resistance R20 connects the signal indication unit, triode Q7's collecting electrode is connected to pilot lamp LED 2's negative pole, triode Q7's base passes through the third end that resistance R21 connects the signal indication unit, triode Q6's projecting pole and triode Q7's projecting pole connect in the fourth end of signal indication unit altogether.
In order to improve the reliability of the detection chip U1, in some embodiments of the present application, as shown in fig. 3, the circuit further includes a resistor R22, a resistor R23, a resistor R24, a resistor R25, a resistor R26, and a resistor R27, the pin CE1 is sequentially connected to the detection chip U1 through the resistor R24 and the resistor R23, the resistor R22 is grounded between the resistor R23 and the detection chip U1, the pin CE3 is sequentially connected to the pin CE2 through the resistor R27 and the resistor R26, a first end of the resistor R25 is connected to a common point of the resistor R26 and the pin CE2, and a second end of the resistor R25 is grounded.
In order to ensure the reliability of the detection chip U1, in some embodiments of the present application, as shown in fig. 3, the detection chip U1 includes a pin VCC and a pin GND, the detection chip U1 is further connected to a program download interface ISP, a first end of the program download interface ISP is connected to the pin VCC, a second end and a third end of the program download interface ISP are connected to the detection chip U1, and a fourth end of the program download interface ISP is grounded.
In order to improve the reliability of the detection chip U1, in some embodiments of the present application, the model number of the detection chip U1 is 15F2K60S2.
Those skilled in the art can select other types of detection chips U1 according to actual needs, which does not affect the protection scope of the present application.
Fill electric pile detection circuitry's working process: the communication unit 10 is connected with a cc signal detection point and a cp signal detection point in the charging pile through the interface J1, the indicator light LED1 and the indicator light LED2 are turned on, the external manual switch at the interface J2 is turned on, the detection chip U1 receives the cc signal and the cp signal from the communication unit 10, and the detection result of the charging pile is determined.
Through using above technical scheme, fill electric pile detection circuitry and include: the communication unit is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile; the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit; the first end of the communication unit is connected with the cp signal detection point, the second end of the communication unit is connected with a pin CE1 corresponding to the cp signal on the detection chip U1, the third end of the communication unit is connected with the cc signal detection point, and the fourth end of the communication unit is connected with a pin CE3 corresponding to the cc signal on the detection chip U1, so that the reliability and the efficiency of charging pile detection are improved.
The embodiment of the present application further provides a charging pile detection simulator, including the circuit as described above, as shown in fig. 5, further including:
the display screen 20 is used for displaying the detection parameters of the charging pile;
an external manual switch 30 for manually switching the simulator;
a load interface 40 for connecting an external adjustable load;
a current detection module 50 for detecting a load current;
and the voltage detection module 60 is used for detecting the voltage of the charging pile LN bus.
In some embodiments, the sensed parameters include voltage, current, and power, and the load interface is a five-hole receptacle.
In this embodiment, after the external manual operation switch 30 is turned on, the charging pile L and N terminals output alternating current 220v commercial power, at this time, the current detection module 50 detects load current and displays a current value on the display screen 20, an external adjustable load may be inserted into the load interface 40, optionally, the load interface 40 is a five-hole socket, and the socket outputs alternating current 220v commercial power. The voltage detection module will detect the LN bus voltage and display the voltage value on the display screen 20. The simulator automatically calculates the output power and displays the power value on the display screen 20. Fill electric pile detection simulation ware from this and can with fill electric pile communication, detect and fill electric pile output bus voltage, load current and bearing capacity.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "enter", "connect", and the like are to be construed broadly, e.g., they may be fixedly connected, detachably connected, or integrally connected; 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 according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (10)
1. A charging pile detection circuit, the circuit comprising:
the communication unit is used for establishing communication connection with the charging pile by connecting a cc signal detection point and a cp signal detection point in the charging pile and acquiring a cc signal and a cp signal of the charging pile;
the detection chip U1 is used for determining a detection result of the charging pile according to the cc signal and the cp signal provided by the communication unit;
the first end of the communication unit is connected with the cp signal detection point, the second end of the communication unit is connected with a pin CE1 corresponding to the cp signal on a detection chip U1, the third end of the communication unit is connected with the cc signal detection point, the fourth end of the communication unit is connected with a pin CE3 corresponding to the cc signal on the detection chip U1, the cc signal is a charging gun connection confirmation signal, and the cp signal is a control charging signal.
2. The circuit of claim 1, wherein the communication unit comprises a capacitor C4, a resistor R1, a diode D1, an interface J1, a resistor R6, a resistor R7, a resistor R8, a diode D3, a diode D4, and a transistor Q1, wherein,
the first end of the capacitor C4 is connected with the second end of the communication unit, the common junction point of the first end of the resistor R1 and the cathode of the diode D1 is connected with the first end of the capacitor C4, the common junction point of the first pair of internal input ends of the interface J1 is connected with the anode of the diode D1, the first end of the resistor R6, the first end of the resistor R7 and the first end of the resistor R8 are connected with the second end of the base of the triode Q1, the common junction point of the cathode of the diode D3, the anode of the diode D4 and the base of the triode Q1 is connected with the second end of the resistor R8, the second end of the resistor R8 is connected with the fourth end of the communication unit, the first external input end and the second external input end of the interface J1 are respectively the first end and the third end of the communication unit, and the second end of the capacitor C4, the second end of the resistor R1, the second end of the resistor R6, the second end of the resistor R7, the anode of the diode D3, the cathode of the diode D4 and the emitter electrode of the triode Q1 are all grounded.
3. The circuit of claim 2, wherein the communication unit further comprises a resistor R2, a resistor R3, and an interface J2, wherein,
the first end of the resistor R2 is connected with the second end of the communication unit, the resistor R3 is connected between the second end of the resistor R2 and the first pair of inner input ends of the interface J2 in series, the external input end of the interface J2 is connected with the external manual switch, and the second pair of inner input ends of the interface J2 is grounded.
4. The circuit of claim 1, wherein the communication unit further comprises a diode D2, a resistor R4, a resistor R5, and a capacitor C3, wherein,
the cathode of the diode D2 is connected with the second end of the communication unit, the anode of the diode D2 is connected with the first end of the resistor R4, the second end of the resistor R4 is grounded through the resistor R5, the second end of the resistor R4 and the first end of the capacitor C3 are connected to the pin CE2 corresponding to the reserved detection end on the detection chip U1 in a common mode, and the second end of the capacitor C3 is grounded.
5. The circuit of claim 1, wherein the circuit further comprises:
the signal indicating unit is used for indicating CC signals and CP signals, a first end of the signal indicating unit is connected with a power supply VCC, a second end of the signal indicating unit is connected with a pin LED _ CC used for indicating the CC signals on the detection chip U1, a third end of the signal indicating unit is connected with a pin LED _ CP used for indicating the CP signals on the detection chip U1, and a fourth end of the signal indicating unit is grounded.
6. The circuit of claim 5, wherein the signal indicating unit comprises an indicator LED1, an indicator LED2, a resistor R20, a resistor R21, a transistor Q6, and a transistor Q7, wherein,
the positive pole of pilot lamp LED1 and the positive pole of pilot lamp LED2 connect in the first end of signal indication unit, triode Q6's collecting electrode is connected to pilot lamp LED 1's negative pole, and triode Q6's base is connected through resistance R20 the second end of signal indication unit, triode Q7's collecting electrode is connected to pilot lamp LED 2's negative pole, and triode Q7's base is connected through resistance R21 the third end of signal indication unit, triode Q6's projecting pole and triode Q7's projecting pole connect in the fourth end of signal indication unit altogether.
7. The circuit according to claim 4, wherein the circuit further comprises a resistor R22, a resistor R23, a resistor R24, a resistor R25, a resistor R26 and a resistor R27, the pin CE1 is connected to the detection chip U1 through the resistor R24 and the resistor R23 in sequence, the resistor R23 and the detection chip U1 are grounded through the resistor R22, the pin CE3 is connected to the pin CE2 through the resistor R27 and the resistor R26 in sequence, a first end of the resistor R25 is connected to a common point of the resistor R26 and the pin CE2, and a second end of the resistor R25 is grounded.
8. The circuit of claim 1, wherein the detection chip U1 has a model number of 15F2K60S2.
9. A charging pile detection simulator comprising the circuit of any one of claims 1-8, and further comprising:
the display screen is used for displaying the detection parameters of the charging pile;
an external manual switch for manually switching the simulator;
the load interface is used for connecting an external adjustable load;
the current detection module is used for detecting load current;
and the voltage detection module is used for detecting the voltage of the charging pile LN bus.
10. The simulator of claim 9, wherein the sensed parameters include voltage, current and power, and the load interface is a five-hole outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222678732.9U CN218767143U (en) | 2022-10-11 | 2022-10-11 | Fill electric pile detection circuitry and simulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222678732.9U CN218767143U (en) | 2022-10-11 | 2022-10-11 | Fill electric pile detection circuitry and simulator |
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| CN218767143U true CN218767143U (en) | 2023-03-28 |
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| CN202222678732.9U Active CN218767143U (en) | 2022-10-11 | 2022-10-11 | Fill electric pile detection circuitry and simulator |
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