CN219960168U - Fill electric pile low voltage signal interconnection circuit and fill electric pile - Google Patents
Fill electric pile low voltage signal interconnection circuit and fill electric pile Download PDFInfo
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- CN219960168U CN219960168U CN202321201178.3U CN202321201178U CN219960168U CN 219960168 U CN219960168 U CN 219960168U CN 202321201178 U CN202321201178 U CN 202321201178U CN 219960168 U CN219960168 U CN 219960168U
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Abstract
The utility model provides a charging pile low-voltage signal interconnection circuit and a charging pile, which are applied to the charging pile, wherein the charging pile comprises an interface module and a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the circuit comprises a starting activation circuit, at least one interconnection activation circuit and a power supply bus; the starting and activating circuit is connected with the sub-controller and the power supply bus in the first battery module; the power supply bus is connected with the voltage signal input end of each interconnection activation circuit, and the first voltage output ends of different interconnection activation circuits are respectively connected with the sub-controllers of other battery modules except the first battery module or the main controller of the interface module; the second voltage output end of the interconnection activation circuit connected with the sub-controllers is connected with the power supply bus, so that when the charging pile is started, the sub-controllers in each battery module and the main controller in the interface module are activated, and the mutual communication between the main controller and the sub-controllers in the operation process is realized.
Description
Technical Field
The utility model relates to the field of charging pile circuits, in particular to a charging pile low-voltage signal interconnection circuit and a charging pile.
Background
In the combined charging pile, the combined charging pile comprises an interface module and a plurality of battery modules, wherein a main controller is arranged in the interface module, each battery module is provided with a sub-controller, and when the charging pile is started, shut down and operated, the main controller and each sub-controller are required to be powered on and powered off and are communicated with each other in the operation process; based on this, there is a need for a low voltage signal interconnection circuit of a charging pile and a charging pile.
Disclosure of Invention
Therefore, the utility model aims to provide a charging pile low-voltage signal interconnection circuit and a charging pile, which can activate a sub-controller in each battery module and a main controller in an interface module when the charging pile is started, and realize the mutual communication of the main controller and the sub-controller in the operation process.
The low-voltage signal interconnection circuit of the charging pile provided by the embodiment of the utility model is applied to the charging pile, and the charging pile comprises an interface module and a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the method is characterized in that: the circuit comprises a starting and activating circuit, at least one interconnection and activating circuit and a power supply bus;
the first voltage output end of the starting and activating circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the starting and activating circuit is connected with the power supply bus;
the power supply bus is connected with the voltage signal input end of each interconnection activation circuit, and the first voltage output ends of different interconnection activation circuits are respectively connected with the sub-controllers of other battery modules except the first battery module or the main controller of the interface module; the second voltage output end of the interconnection activation circuit of the connection sub-controller is connected with a power supply bus; the circuit structures of the interconnection activation circuits of the connection sub-controllers and the main controller are different.
In some embodiments, in the charging pile low-voltage signal interconnection circuit, the starting activation circuit comprises a starting circuit and an external activation circuit;
the starting signal output end of the starting circuit is connected with the voltage signal input end of the external activation circuit, the first voltage output end of the external activation circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the external activation circuit is connected with the power supply bus.
In some embodiments, in the charging pile low-voltage signal interconnection circuit, the starting circuit includes a starting button circuit and a charging power supply insertion detection circuit;
the starting button circuit is connected in parallel with the charging power supply insertion detection circuit.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the external activation circuit includes a first power supply, a first power supply activation circuit, and a first voltage conversion circuit:
the first power supply activation circuit is connected with a starting signal output end of the starting circuit, the first power supply activation circuit is connected with a first power supply, and a voltage output end of the first power supply activation circuit is connected with a first voltage conversion circuit.
In some embodiments, in the charging pile low-voltage signal interconnection circuit,
the first power supply activating circuit is used for receiving a starting signal output by a starting signal output end of the starting circuit, activating the first power supply and outputting a first voltage signal to the first voltage converting circuit;
the first voltage conversion circuit is used for receiving a first voltage signal, converting the first voltage signal into an activation signal and outputting the activation signal to a sub-controller in the first battery module, and converting the first voltage signal into a public voltage and outputting the public voltage to a power supply bus.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the interconnection activation circuit connected to the sub-controller includes a second power supply, a second power supply activation circuit, and a second voltage conversion circuit:
the second power supply activation circuit is connected with the power supply bus, the second power supply activation circuit is connected with a second power supply, and the voltage output end of the second power supply activation circuit is connected with the second voltage conversion circuit.
In some embodiments, in the charging pile low-voltage signal interconnection circuit, an interconnection activation circuit connected with the main controller includes a third voltage conversion circuit and a first capacitor;
the voltage signal input end of the third voltage conversion circuit is connected with the power supply bus, and the voltage signal output end of the third voltage conversion circuit is connected with the main controller through the first capacitor.
In some embodiments, in the charging pile low-voltage signal interconnection circuit,
the second power supply activating circuit is used for receiving the voltage signal output by the power supply bus, activating the second power supply and outputting the second voltage signal to the second voltage converting circuit;
the second voltage conversion circuit is used for receiving a second voltage signal, converting the second voltage signal into an activation signal and outputting the activation signal to a sub-controller in the corresponding battery module, and converting the second voltage signal into a public voltage and outputting the public voltage to a power supply bus.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the first power supply activating circuit includes: the first optical coupler circuit, the first MOS tube circuit and the second MOS tube circuit;
the positive pole of the first power supply is connected with the first end of the starting circuit in series, and the second end of the starting circuit is connected with the first optocoupler circuit, the second MOS tube circuit and the first MOS tube circuit in series in sequence, so that the first MOS tube circuit outputs a first voltage signal to the first voltage conversion circuit.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the second power supply activation circuit includes: the second optocoupler circuit, the fifth MOS transistor circuit and the fourth MOS transistor circuit;
the second optocoupler circuit is connected with the power supply bus, the positive electrode of the second optocoupler circuit is connected with the first end of the starting circuit in series, and the second optocoupler circuit is connected with the fifth MOS tube circuit, the fourth MOS tube circuit and the positive electrode of the second power supply in series in sequence, so that the fourth MOS tube circuit outputs a second voltage signal to the second voltage conversion circuit.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the second voltage conversion circuit includes: the integrated impact controller and the transformer circuit comprise a main side, a first secondary side and a second secondary side;
the input end of the integrated impact controller is connected with the voltage output end of the second power supply activation circuit, the output end of the integrated impact controller is connected with the main side of the transformer circuit, the first secondary side of the transformer circuit is connected with the common bus, and the second secondary side is connected with the controller of the corresponding battery module.
In some embodiments, in the low voltage signal interconnection circuit of the charging pile, the first voltage conversion circuit is the same as the second voltage conversion circuit.
In some embodiments, in the charging pile low-voltage signal interconnection circuit, the external activation circuit further includes a first shutdown circuit, and an input end of the first shutdown circuit is connected to a sub-controller of a corresponding battery module; the output end of the first shutdown circuit is connected with the voltage output end of the first optocoupler circuit.
In some embodiments, in the low-voltage signal interconnection circuit of the charging pile, the interconnection activation circuit connected with the sub-controller further includes a second shutdown circuit, and an input end of the second shutdown circuit is connected with the sub-controller corresponding to the battery module; the output end of the second shutdown circuit is connected with the voltage output end of the second optocoupler circuit.
In some embodiments, there is also provided a charging stake including an interface module, a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the main controller and the sub controllers are interconnected through the charging pile low-voltage signal interconnection circuit. The embodiment of the utility model provides a charging pile low-voltage signal interconnection circuit and a charging pile, wherein the interconnection circuit is applied to the charging pile, and the charging pile comprises an interface module and a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the circuit comprises a starting and activating circuit, at least one interconnection and activating circuit and a power supply bus; the first voltage output end of the starting and activating circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the starting and activating circuit is connected with the power supply bus; the power supply bus is connected with the voltage signal input end of each interconnection activation circuit, and the first voltage output ends of different interconnection activation circuits are respectively connected with the sub-controllers of other battery modules except the first battery module or the main controller of the interface module; the second voltage output end of the interconnection activation circuit of the connection sub-controller is connected with a power supply bus; the circuit structures of the interconnection activation circuits of the connection sub-controllers and the main controller are different; in this way, the sub-controller in the first battery module is activated based on the starting signal of the starting and activating circuit, and meanwhile, the starting and activating circuit in the first battery module outputs voltage to the power supply bus, and the power supply bus is self-maintained through the second activating circuit after being supplied with power by the auxiliary power supply of the first sub-battery module; simultaneously, the second activation circuits of all the other sub-battery modules connected in parallel work and are activated one by one; the activating circuits in each battery module output voltage signals to the power supply bus, so that power failure in the activating process can be effectively prevented; meanwhile, the activating circuits in the battery modules output voltage signals to the power supply bus to activate the main controller, so that the loads such as the direct current contactor and the touch screen which are consumed by the main controller in normal switching can be met, and the normal operation of the system is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic circuit diagram of a low-voltage signal interconnection circuit of a charging pile according to an embodiment of the present utility model;
FIG. 2 shows a circuit diagram of a start-up activation circuit according to an embodiment of the present utility model;
fig. 3 shows a circuit diagram of an interconnect activation circuit according to an embodiment of the present utility model.
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 with reference to the accompanying drawings in the embodiments of the present utility model, and it should be understood that the drawings in the present utility model are for the purpose of illustration and description only and are not intended to limit the scope of the present utility model. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present utility model. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
It should be noted that the term "comprising" will be used in embodiments of the utility model to indicate the presence of the features stated hereafter, but not to exclude the addition of other features.
In the combined charging pile, the combined charging pile comprises an interface module and a plurality of battery modules, wherein a main controller is arranged in the interface module, each battery module is provided with a sub-controller, and when the charging pile is started, shut down and operated, the main controller and each sub-controller are required to be powered on and powered off and are communicated with each other in the operation process; based on this, there is a need for a low voltage signal interconnection circuit of a charging pile and a charging pile.
Based on the above, the embodiment of the utility model provides a charging pile low-voltage signal interconnection circuit and a charging pile, wherein the interconnection circuit is applied to the charging pile, and the charging pile comprises an interface module and a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the circuit comprises a starting and activating circuit, at least one interconnection and activating circuit and a power supply bus; the first voltage output end of the starting and activating circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the starting and activating circuit is connected with the power supply bus; the power supply bus is connected with the voltage signal input end of each interconnection activation circuit, and the first voltage output ends of different interconnection activation circuits are respectively connected with the sub-controllers of other battery modules except the first battery module or the main controller of the interface module; the second voltage output end of the interconnection activation circuit of the connection sub-controller is connected with a power supply bus; the circuit structures of the interconnection activation circuits of the connection sub-controllers and the main controller are different; in this way, the sub-controller in the first battery module is activated based on the starting signal of the starting and activating circuit, and meanwhile, the starting and activating circuit in the first battery module outputs voltage to the power supply bus, and the power supply bus is self-maintained through the second activating circuit after being supplied with power by the auxiliary power supply of the first sub-battery module; simultaneously, the second activation circuits of all the other sub-battery modules connected in parallel work and are activated one by one; the activating circuits in each battery module output voltage signals to the power supply bus, so that power failure in the activating process can be effectively prevented; meanwhile, the activating circuits in the battery modules output voltage signals to the power supply bus to activate the main controller, so that the loads such as the direct current contactor and the touch screen which are consumed by the main controller in normal switching can be met, and the normal operation of the system is ensured.
Referring to fig. 1, fig. 1 shows a schematic circuit diagram of a low-voltage signal interconnection circuit of a charging pile according to an embodiment of the present utility model; the charging pile comprises an interface module and a plurality of battery modules; the interface module comprises a main controller 101, and the battery module comprises a sub-controller 102; the circuit comprises a start-up activation circuit 103, at least one interconnection activation circuit 104 and a power supply bus;
a first voltage output end of the starting and activating circuit 103 is connected with the sub-controller 102 in the first battery module, and a second voltage output end of the starting and activating circuit 103 is connected with a power supply bus;
the power supply bus is connected with the voltage signal input end of each interconnection activation circuit 104, and the first voltage output ends of different interconnection activation circuits 104 are respectively connected with the sub-controllers 102 of other battery modules except the first battery module or the main controller 101 of the interface module; a second voltage output end of the interconnection activation circuit 104 connected with the sub-controller 102 is connected with a power supply bus; the interconnect activation circuit 104 of the connection sub-controller 102 and the main controller 101 has a different circuit configuration.
In the embodiment of the present utility model, the main controller 101 is connected to each sub-controller 102 through a signal line.
In the embodiment of the present utility model, in the charging pile low-voltage signal interconnection circuit, the start activation circuit 103 includes a start circuit and an external activation circuit;
the starting signal output end of the starting circuit is connected with the voltage signal input end of the external activation circuit, the first voltage output end of the external activation circuit is connected with the sub-controller 102 in the first battery module, and the second voltage output end of the external activation circuit is connected with the power supply bus.
Referring to fig. 1, the external activation circuit activates the sub-controller 102 in the first battery module based on the start signal of the start circuit, and simultaneously, the external activation circuit in the first battery module outputs voltage to the power supply bus, and the power supply bus is self-maintained by the second activation circuit after being powered by the auxiliary power supply of the first sub-battery module; simultaneously, the second activation circuits of all the other sub-battery modules connected in parallel work and are activated one by one; the activating circuit in each battery module outputs a voltage signal to the power supply bus, so that the power failure in the activating process can be effectively prevented; meanwhile, the activating circuits in the battery modules output voltage signals to the power supply buses to activate the main controller 101, so that the main controller 101 can normally switch loads such as a power-consuming direct current contactor and a touch screen, and normal operation of the system is ensured.
Referring to fig. 2, in the embodiment of the present utility model, in the charging pile low voltage signal interconnection circuit, the start circuit includes a start button S1 circuit and a charging power supply insertion detection circuit 201;
the start button S1 circuit is connected in parallel with the charging power supply insertion detection circuit 201.
When the start button S1 of the start button S1 circuit is pressed to turn on the start button S1 circuit, or when the charging power is plugged into the charging power plug-in detection circuit 201, a start signal can be output to the external activation circuit to activate the sub-controller 102 in the first battery module.
That is, the charging stake may be manually activated and the control system of the charging stake may be activated when the charging source is plugged into the charging stake.
In the embodiment of the present utility model, the output end of the charging power insertion detection circuit 201 is connected in series with the light emitting end of the third optocoupler IC3, and the light receiving end of the third optocoupler IC3 is connected in parallel with two ends of the circuit of the start button S1.
The third optocoupler IC3 is configured to isolate the start button S1 circuit from the charging power insertion detection circuit 201, and protect electronic components in the low-voltage signal interconnection circuit.
Referring to fig. 2, the external activation circuit includes a first power BT1, a first power activation circuit, and a first voltage conversion circuit:
the first power supply activation circuit is connected with a starting signal output end of the starting circuit, the first power supply activation circuit is connected with the first power supply BT1, and a voltage output end of the first power supply activation circuit is connected with the first voltage conversion circuit.
The first power supply activation circuit is used for receiving a starting signal output by a starting signal output end of the starting circuit, activating the first power supply BT1 and outputting a first voltage signal to the first voltage conversion circuit;
the first voltage conversion circuit is configured to receive a first voltage signal, convert the first voltage signal into an activation signal, output the activation signal to the sub-controller 102 in the first battery module, and convert the first voltage signal into a common voltage output power supply bus.
Second optocoupler I circuit the interconnect activation circuit 104 includes a second power supply BT2, a second power supply activation circuit, and a second voltage conversion circuit:
the second power supply activation circuit is connected with the power supply bus, the second power supply activation circuit is connected with the second power supply BT2, and the voltage output end of the second power supply activation circuit is connected with the second voltage conversion circuit.
Specifically, the first power supply activation circuit includes: the first optical coupler circuit, the first MOS tube circuit and the second MOS tube circuit;
the positive pole of the first power supply BT1 is connected with the first end of the starting circuit in series, and the second end of the starting circuit is connected with the first optocoupler circuit, the second MOS tube circuit and the first MOS tube circuit in series in sequence, so that the first MOS tube circuit outputs a first voltage signal to the first voltage conversion circuit.
Specifically, the first power supply activation circuit further comprises a first diode D1 and a first resistor R1; the first optocoupler circuit comprises a first optocoupler IC1 and a sixth resistor R6; the second MOS tube circuit comprises a second MOS tube Q2 and a fourth capacitor C4; the first MOS tube circuit comprises a first MOS tube Q1, a second resistor R2 and a third resistor R3;
the first optocoupler circuit comprises a first optocoupler IC1 and a sixth resistor R6; the first end of the light-emitting end of the first optical coupler IC1 is connected with the second end of the starting circuit, and the first end of the light-emitting end of the first optical coupler IC 1; the first end of the light receiving end of the first optical coupler IC1 is connected with 3.3V voltage, and the second end is connected with a sixth resistor R6 in series and then grounded; the second end of the light receiving end of the first optocoupler IC1 is connected with the grid electrode of a second MOS tube Q2, the drain electrode of the second MOS tube Q2 is connected with a third resistor R3 and the grid electrode of the first MOS tube Q1 in series, the source electrode of the second MOS tube Q2 is grounded, and a fourth capacitor C4 is connected between the grid electrode and the source electrode of the second MOS tube Q2 in series; the drain electrode of the first MOS tube Q1 is connected with the positive electrode of the first power supply BT1, and a second resistor R2 is connected between the drain electrode and the grid electrode of the first MOS tube Q1 in series; the positive electrode of the first power supply BT1 is connected with the first resistor R1 and the first diode D1 in series and then is connected with the first end of the starting circuit; the source electrode of the first MOS transistor Q1 outputs a first voltage signal to the first voltage conversion circuit.
The first voltage conversion circuit includes: the integrated circuit comprises a first integrated counterattack controller and a first transformer circuit T1, wherein the first transformer circuit T1 comprises a main side, a first secondary side and a second secondary side;
the input end of the first integrated impact controller is connected with the voltage output end of the first power supply activation circuit, the output end of the integrated impact controller is connected with the main side of the first transformer circuit T1, the first secondary side of the first transformer circuit T1 is connected with the public bus, and the second secondary side is connected with the controller of the corresponding battery module.
In the embodiment of the utility model, a first secondary side of a first transformer circuit T1 is connected with a third diode D3 in series, and is connected with a common bus after being connected with a second capacitor C2 in parallel; the second secondary side is connected in series with a fourth diode D4 and is connected in parallel with a third capacitor C3As the power source of the local machinePower is supplied to the sub-controller 102 of the battery module.
Referring to fig. 2, when a button of a starting circuit in the interface module is pressed, an output voltage of a first power supply BT1 of the first battery module is changed from 0V to 3.3V through a first resistor R1 and a first diode D1, and then a voltage across a first optocoupler IC1 and a sixth resistor R6 is driven to jump, a second MOS transistor Q2 is driven to be opened, a voltage dividing circuit formed by the second resistor R2 and a third resistor R3 opens the first MOS transistor Q1 (PNP), an auxiliary power supply formed by the integrated impact controller starts to work, windings of a first secondary side and a second secondary side are electrified, and the first secondary side forms stable +12vc/GNDC to supply power to the interface module and other battery modules; the second secondary side is to power the sub-controller 102 of the battery module.
Referring to fig. 3, in the embodiment of the present utility model, in the low-voltage signal interconnection circuit of the charging pile, the interconnection activation circuit 104 connected to the sub-controller 102 includes a second power BT2, a second power activation circuit, and a second voltage conversion circuit:
the second power supply activation circuit is connected with the power supply bus, the second power supply activation circuit is connected with the second power supply BT2, and the voltage output end of the second power supply activation circuit is connected with the second voltage conversion circuit.
The second power supply activation circuit is used for receiving a voltage signal output by the power supply bus, activating the second power supply BT2 and outputting a second voltage signal to the second voltage conversion circuit;
the second voltage conversion circuit is configured to receive a second voltage signal, convert the second voltage signal into an activation signal, output the activation signal to the sub-controller 102 in the corresponding battery module, and convert the second voltage signal into a common voltage and output the common voltage to the power supply bus.
In the charging pile low-voltage signal interconnection circuit, an interconnection activation circuit 104 connected with the main controller 101 comprises a third voltage conversion circuit and a first capacitor C1;
the voltage signal input end of the third voltage conversion circuit is connected with the power supply bus, and the voltage signal output end of the third voltage conversion circuit is connected with the main controller 101 through the first capacitor.
Referring to fig. 2, the second power activation circuit includes: the second optocoupler I circuit, the fifth MOS tube circuit and the fourth MOS tube circuit;
the second optocoupler I circuit is connected with the power supply bus, and is sequentially connected with the fifth MOS tube circuit, the fourth MOS tube circuit and the positive electrode of the second power supply BT2 in series, so that the fourth MOS tube circuit outputs a second voltage signal to the second voltage conversion circuit.
The second optocoupler I circuit comprises a second optocoupler IC2 and a thirteenth resistor R13; the fifth MOS transistor circuit comprises a fifth MOS transistor Q5 and a seventh capacitor C7; the fourth MOS tube circuit comprises a fourth MOS tube Q4, a ninth resistor R9 and a tenth resistor R10; the first end and the second end of the light-emitting end of the second optocoupler IC2 are connected with a power supply bus; the first end of the light receiving end of the second optocoupler IC2 is connected with 3.3V voltage, and the second end is connected with a thirteenth resistor R13 in series and then grounded; the second end of the light receiving end of the second optocoupler IC2 is connected with the grid electrode of a fifth MOS tube Q5, the drain electrode of the fifth MOS tube Q5 is connected with a tenth resistor R10 and the grid electrode of a fourth MOS tube Q4 in series, the source electrode of the fifth MOS tube Q5 is grounded, and a seventh capacitor C7 is connected between the grid electrode and the source electrode of the fifth MOS tube Q5 in series; the drain electrode of the fourth MOS tube Q4 is connected with the positive electrode of the second power supply BT2, and a ninth resistor R9 is connected between the drain electrode and the grid electrode of the fourth MOS tube Q4 in series; the source electrode of the fourth MOS transistor Q4 outputs a second voltage signal to the second voltage conversion circuit.
The second voltage conversion circuit includes: the integrated circuit comprises a second integrated counterattack controller and a second transformer circuit T2, wherein the second transformer circuit T2 comprises a main side, a first secondary side and a second secondary side;
the input end of the second integrated impact controller is connected with the voltage output end of the second power supply activation circuit, the output end of the second integrated impact controller is connected with the main side of the second transformer circuit T2, the first secondary side of the second transformer circuit T2 is connected with the public bus, and the second secondary side is connected with the controller of the corresponding battery module.
Here, the first voltage conversion circuit is identical to the second voltage conversion circuit.
Referring to fig. 3, the output voltage of the power supply bus drives the second optocoupler IC2 to be turned on, the voltage at two ends of the thirteenth resistor R13 jumps from 0V to 3.3V, the fifth MOS transistor Q5 is driven to be turned on, the voltage dividing circuit formed by the tenth resistor R10 and the ninth resistor R9 turns on the fourth MOS transistor Q4 (PNP), the auxiliary power supply formed by the integrated counterattack controller starts to work, the windings of the first secondary side and the second secondary side are electrified, the first secondary side forms stable +12vc/GNDC, and power is supplied to the interface module and other battery modules; the second secondary side is to power the sub-controller 102 of the battery module.
In the embodiment of the present utility model, in the charging pile low-voltage signal interconnection circuit, the external activation circuit further includes a first shutdown circuit, and an input end of the first shutdown circuit is connected to the sub-controller 102 of the corresponding battery module; the output end of the first shutdown circuit is connected with the voltage output end of the first optocoupler circuit.
Specifically, the first shutdown circuit includes a third MOS transistor Q3, a fifth resistor R5, and a fourth resistor R4; the output end of the sub-controller 102 in the first battery module is connected with the grid electrode of the third MOS tube Q3 through the fifth resistor R5, the source electrode of the third MOS tube Q3 is grounded, and the drain electrode of the third MOS tube Q3 is connected with the source electrode of the second MOS tube Q2.
Similarly, the interconnection activation circuit 104 connected to the sub-controller 102 further includes a second shutdown circuit, where an input end of the second shutdown circuit is connected to the sub-controller 102 corresponding to the battery module; the output end of the second shutdown circuit is connected with the voltage output end of the second optocoupler I circuit.
When the control system of the charging pile needs to be shut down, the main controller 101 of the interface module sends out a shutdown command through the CAN bus, and the sub-controller 102 of the battery module receiving the command sends out a signal for closing the auxiliary power supply; taking the first shutdown circuit as an example, the third MOS transistor Q3 is turned on through the fifth resistor R5, so that the driving voltage on the second MOS transistor Q2 becomes 0, the second MOS transistor Q2 is turned off, the first MOS transistor Q1 is turned off, the auxiliary power supply part loses the power supply, and the control system of the charging pile is turned off.
The embodiment of the utility model also provides a charging pile which comprises an interface module and a plurality of battery modules; the interface module comprises a main controller 101, and the battery module comprises a sub-controller 102; the main controller 101 and the sub-controller 102 are interconnected through the charging pile low-voltage signal interconnection circuit.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the circuit and the charging pile described above may refer to the corresponding process in the method embodiment, and will not be described in detail in the present disclosure. In several embodiments provided by the present utility model, it should be understood that the disclosed circuit and charging post may be implemented in other ways. The above-described embodiments are merely illustrative, e.g., the division of the modules is merely a logical division of functionality, and there may be additional divisions of actual implementation, and e.g., multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, indirect coupling or communication connection of devices or modules, electrical, mechanical, or other form.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (15)
1. The utility model provides a low voltage signal interconnection circuit of charging stake, is applied to the charging stake, the charging stake includes interface module, a plurality of battery module; the interface module comprises a main controller, and the battery module comprises a sub-controller; the method is characterized in that: the circuit comprises a starting and activating circuit, at least one interconnection and activating circuit and a power supply bus;
the first voltage output end of the starting and activating circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the starting and activating circuit is connected with the power supply bus;
the power supply bus is connected with the voltage signal input end of each interconnection activation circuit, and the first voltage output ends of different interconnection activation circuits are respectively connected with the sub-controllers of other battery modules except the first battery module or the main controller of the interface module; the second voltage output end of the interconnection activation circuit of the connection sub-controller is connected with a power supply bus; the circuit structures of the interconnection activation circuits of the connection sub-controllers and the main controller are different.
2. The charging post low voltage signal interconnect circuit of claim 1, wherein the start-up activation circuit comprises a start-up circuit and an external activation circuit;
the starting signal output end of the starting circuit is connected with the voltage signal input end of the external activation circuit, the first voltage output end of the external activation circuit is connected with the sub-controller in the first battery module, and the second voltage output end of the external activation circuit is connected with the power supply bus.
3. The low-voltage signal interconnection circuit for a charging pile according to claim 2, wherein,
the starting circuit comprises a starting button circuit and a charging power supply insertion detection circuit;
the starting button circuit is connected in parallel with the charging power supply insertion detection circuit.
4. The charging pile low-voltage signal interconnection circuit of claim 2, wherein the external activation circuit comprises a first power supply, a first power supply activation circuit, and a first voltage conversion circuit:
the first power supply activation circuit is connected with a starting signal output end of the starting circuit, the first power supply activation circuit is connected with a first power supply, and a voltage output end of the first power supply activation circuit is connected with a first voltage conversion circuit.
5. The low voltage signal interconnection circuit of a charging pile according to claim 4, wherein,
the first power supply activating circuit is used for receiving a starting signal output by a starting signal output end of the starting circuit, activating the first power supply and outputting a first voltage signal to the first voltage converting circuit;
the first voltage conversion circuit is used for receiving a first voltage signal, converting the first voltage signal into an activation signal and outputting the activation signal to a sub-controller in the first battery module, and converting the first voltage signal into a public voltage and outputting the public voltage to a power supply bus.
6. The low voltage signal interconnect circuit of a charging pile according to claim 5, wherein,
the interconnection activation circuit connected with the sub-controller comprises a second power supply, a second power supply activation circuit and a second voltage conversion circuit:
the second power supply activation circuit is connected with the power supply bus, the second power supply activation circuit is connected with a second power supply, and the voltage output end of the second power supply activation circuit is connected with the second voltage conversion circuit.
7. The low voltage signal interconnect circuit of a charging pile according to claim 1, wherein,
the interconnection activation circuit connected with the main controller comprises a third voltage conversion circuit and a first capacitor;
the voltage signal input end of the third voltage conversion circuit is connected with the power supply bus, and the voltage signal output end of the third voltage conversion circuit is connected with the main controller through the first capacitor.
8. The low voltage signal interconnect circuit of a charging post according to claim 6, wherein,
the second power supply activating circuit is used for receiving the voltage signal output by the power supply bus, activating the second power supply and outputting the second voltage signal to the second voltage converting circuit;
the second voltage conversion circuit is used for receiving a second voltage signal, converting the second voltage signal into an activation signal and outputting the activation signal to a sub-controller in the corresponding battery module, and converting the second voltage signal into a public voltage and outputting the public voltage to a power supply bus.
9. The charging pile low-voltage signal interconnection circuit of claim 4, wherein the first power activation circuit comprises: the first optical coupler circuit, the first MOS tube circuit and the second MOS tube circuit;
the positive pole of the first power supply is connected with the first end of the starting circuit in series, and the second end of the starting circuit is connected with the first optocoupler circuit, the second MOS tube circuit and the first MOS tube circuit in series in sequence, so that the first MOS tube circuit outputs a first voltage signal to the first voltage conversion circuit.
10. The charging post low voltage signal interconnect circuit of claim 6, wherein said second power activation circuit comprises: the second optocoupler circuit, the fifth MOS transistor circuit and the fourth MOS transistor circuit;
the second optocoupler circuit is connected with the power supply bus, the positive electrode of the second optocoupler circuit is connected with the first end of the starting circuit in series, and the second optocoupler circuit is connected with the fifth MOS tube circuit, the fourth MOS tube circuit and the positive electrode of the second power supply in series in sequence, so that the fourth MOS tube circuit outputs a second voltage signal to the second voltage conversion circuit.
11. The charging post low voltage signal interconnect circuit of claim 8, wherein said second voltage conversion circuit comprises: the integrated impact controller and the transformer circuit comprise a main side, a first secondary side and a second secondary side;
the input end of the integrated impact controller is connected with the voltage output end of the second power supply activation circuit, the output end of the integrated impact controller is connected with the main side of the transformer circuit, the first secondary side of the transformer circuit is connected with the common bus, and the second secondary side is connected with the controller of the corresponding battery module.
12. The charging pile low-voltage signal interconnection circuit of claim 11, wherein the first voltage conversion circuit is identical to the second voltage conversion circuit.
13. The charging pile low-voltage signal interconnection circuit according to claim 9, wherein the external activation circuit further comprises a first shutdown circuit, and an input end of the first shutdown circuit is connected with a sub-controller of a corresponding battery module; the output end of the first shutdown circuit is connected with the voltage output end of the first optocoupler circuit.
14. The charging pile low-voltage signal interconnection circuit according to claim 10, wherein the interconnection activation circuit connected with the sub-controller further comprises a second shutdown circuit, and an input end of the second shutdown circuit is connected with the sub-controller of the corresponding battery module; the output end of the second shutdown circuit is connected with the voltage output end of the second optocoupler circuit.
15. A charging pile, which is characterized by comprising an interface module and a plurality of battery modules; the interface module comprises a main controller, and the battery module comprises a sub-controller; the main controller and the sub-controllers are interconnected by the charging pile low voltage signal interconnection circuit of any one of claims 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201178.3U CN219960168U (en) | 2023-05-17 | 2023-05-17 | Fill electric pile low voltage signal interconnection circuit and fill electric pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201178.3U CN219960168U (en) | 2023-05-17 | 2023-05-17 | Fill electric pile low voltage signal interconnection circuit and fill electric pile |
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| CN219960168U true CN219960168U (en) | 2023-11-03 |
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| CN202321201178.3U Active CN219960168U (en) | 2023-05-17 | 2023-05-17 | Fill electric pile low voltage signal interconnection circuit and fill electric pile |
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| Country | Link |
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| CN (1) | CN219960168U (en) |
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