Charging cover driving circuit, charging cover driving board and charging pile

Abstract

The utility model discloses a charging cover driving circuit, a charging cover driving board and a charging pile, and relates to the technical field of charging, and the charging cover driving circuit comprises a control circuit which is electrically connected with a charging gun and a charging pile body; the plurality of communication modules are electrically connected with the control circuit; the communication module is used for establishing communication connection with an automobile; wherein the plurality of communication modules at least comprise two types of communication modules; the control circuit is used for outputting a cover opening driving signal to the automobile through the communication module of the corresponding type according to the received first trigger signal and the automobile type signal, so that the automobile controls a charging cover of the automobile to act; the utility model aims to solve the technical problem that intelligent uncovering charging piles in the market generally only support vehicles of specific brands or models and cannot meet the requirements of multiple brands and multiple models.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging technology, and in particular to a charging cover drive circuit, a charging cover drive board, and a charging pile. Background Technology

[0002] To enhance user experience, some high-end charging stations have introduced a "one-click smart cover opening" function in recent years. This function allows users to trigger the automatic opening of the vehicle's charging port cover with a simple operation (such as pressing a button on the charging gun), thereby simplifying the charging process and improving convenience.

[0003] However, current smart charging stations with open covers typically only support vehicles of specific brands or models, failing to meet the needs of users with multiple brands and models. Utility Model Content

[0004] The main purpose of this utility model is to propose a charging cover driving circuit, a charging cover driving board, and a charging pile, which aims to solve the technical problem that smart charging piles on the market usually only support vehicles of specific brands or models and cannot meet the needs of multiple brands and models.

[0005] To achieve the above objectives, this utility model proposes a charging cover driving circuit for use in charging piles. The charging pile includes a charging pile body and a charging gun electrically connected to the charging pile body. The charging pile body is used to receive a vehicle model signal sent by an external terminal, and the charging gun is used to output a first trigger signal when triggered. The charging cover driving circuit includes:

[0006] A control circuit, which is electrically connected to both the charging gun and the charging pile body;

[0007] Multiple communication modules are provided, and the multiple communication modules are electrically connected to the control circuit; the communication modules are used to establish a communication connection with the vehicle.

[0008] The plurality of communication modules include at least two types of communication modules;

[0009] The control circuit is used to output an opening drive signal to the car via the corresponding type of communication module according to the received first trigger signal and the vehicle model signal, so that the car controls its own charging cover to operate.

[0010] In one embodiment, the control circuit includes:

[0011] The main controller is electrically connected to the charging pile body, and the main controller also has a first signal terminal;

[0012] A pull-up circuit, wherein the first terminal of the pull-up circuit is used to connect to a first voltage, and the second terminal of the pull-up circuit is electrically connected to the first signal terminal of the main controller and the charging gun respectively;

[0013] The second terminal of the pull-up circuit is used to connect to the first trigger signal.

[0014] In one embodiment, the pull-up circuit includes:

[0015] A first resistor, the first end of which is used to connect to a first voltage, the second end of which is grounded, the second end of which is also used to connect to a first trigger signal, and the second end of which is also connected to the first signal terminal.

[0016] In one embodiment, the control circuit further includes a filter circuit, the first terminal of which is connected to the second terminal of the pull-up circuit.

[0017] In one embodiment, the filtering circuit includes:

[0018] A first capacitor, the first terminal of which is connected to the second terminal of the pull-up circuit, and the second terminal of which is grounded.

[0019] In one embodiment, the control circuit further includes a second resistor, which is connected in series in the path between the first signal terminal of the main controller and the second terminal of the pull-up circuit; the second resistor is used to form an electrostatic protection circuit with the first capacitor.

[0020] In one embodiment, the plurality of communication modules include at least a Bluetooth module and a 433 module.

[0021] This utility model also proposes a charging cover driving board, which includes a circuit board and the charging cover driving circuit described in any of the above claims disposed on the circuit board.

[0022] This utility model also proposes a charging pile, which includes a charging pile body, a charging gun electrically connected to the charging pile body, and the charging cover drive plate described above; the charging cover drive plate is disposed in the charging pile body.

[0023] The charging pile body is used to receive vehicle model signals sent by external terminals, and the charging gun is used to output a first trigger signal when triggered.

[0024] In one embodiment, the charging gun includes a normally open and normally closed switch, the normally open and normally closed switch having a first normally open contact and a second normally open contact, the first normally open contact being connected to the control circuit, and the second normally open contact being grounded; the normally open and normally closed switch circuit is used to conduct the path between the first normally open contact and the second normally open contact when triggered, so that the control circuit receives a low-level signal;

[0025] The first trigger signal is the low-level signal.

[0026] This utility model relates to a charging cover drive circuit applied to a charging pile. The charging pile includes a charging pile body and a charging gun electrically connected to the charging pile body. The charging pile body receives vehicle model signals sent by an external terminal, and the charging gun outputs a first trigger signal when triggered. The charging cover drive circuit includes a control circuit and multiple communication modules. The control circuit is electrically connected to both the charging gun and the charging pile body. The multiple communication modules are electrically connected to the control circuit and are used to establish communication connections with the vehicle. Each communication module includes at least two types of communication modules. The control circuit outputs an opening drive signal to the vehicle via the corresponding type of communication module based on the received first trigger signal and vehicle model signal, enabling the vehicle to control the operation of its own charging cover. With this configuration, this utility model integrates multiple types of communication modules, constructing a communication protocol library covering various vehicle models. It dynamically selects the matching communication channel based on the user-preset vehicle model information, achieving precise adaptation to charging covers of different brands and models. In practical applications, users do not need to manually operate the vehicle's charging cover; they only need to select the corresponding vehicle model and trigger the charging gun via a handheld terminal, such as a mobile app, to automatically open the cover, improving the user experience. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a module according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of a module according to another embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the circuit structure of an embodiment of the present invention;

[0031] Figure 4This is a schematic diagram of a module according to another embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the circuit structure of another embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of a module according to another embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of a module according to another embodiment of the present invention.

[0035] Explanation of icon numbers:

[0036] 10. Charging pile body; 20. Charging gun; 30. Control circuit; 31. Main controller; 32. Pull-up circuit; 33. Filtering circuit; 40. Communication module.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] To enhance user experience, some high-end charging stations have introduced a "one-click smart cover opening" function in recent years. This function allows users to trigger the automatic opening of the vehicle's charging port cover with a simple operation (such as pressing a button on the charging gun), thereby simplifying the charging process and improving convenience.

[0042] However, current smart charging stations with open covers typically only support vehicles of specific brands or models, failing to meet the needs of users with multiple brands and models.

[0043] To address this issue, this utility model proposes a charging cover driving circuit, a charging cover driving board, and a charging pile, aiming to solve the technical problem that existing smart charging piles on the market typically only support vehicles of specific brands or models, failing to meet the needs of multiple brands and models. In one embodiment of this utility model, referring to... Figure 1 The charging cover driving circuit is applied to a charging pile, which includes a charging pile body 10 and a charging gun 20 electrically connected to the charging pile body 10; the charging pile body 10 is used to receive a vehicle model signal sent by an external terminal, and the charging gun 20 is used to output a first trigger signal when triggered. The charging cover driving circuit includes:

[0044] Control circuit 30, which is electrically connected to the charging gun 20 and the charging pile body 10 respectively;

[0045] Multiple communication modules 40 are provided, and the multiple communication modules 40 are electrically connected to the control circuit 30; the communication modules 40 are used to establish a communication connection with the vehicle.

[0046] The plurality of communication modules 40 include at least two types of communication modules 40;

[0047] The control circuit 30 is used to output an opening drive signal to the car via the corresponding type of communication module 40 based on the received first trigger signal and the vehicle model signal, so that the car controls its own charging cover operation.

[0048] In this embodiment, when a user needs to charge a vehicle, they can select the corresponding vehicle model information on a handheld terminal, such as a mobile APP, or on the touch screen of the charging pile body 10, so that the charging pile body 10 can receive the corresponding vehicle model signal. The vehicle model signal includes vehicle model parameters, such as the vehicle's communication protocol, so that the control circuit 30 can select the corresponding communication module 40 according to the vehicle's communication protocol. It also includes vehicle brand and model code and other identity parameters so that the user's vehicle can recognize the opening drive signal sent by the control circuit 30.

[0049] In this embodiment, the multiple communication modules 40 include at least a Bluetooth module and a 433 module. When the control circuit 30 determines that the communication protocol of the vehicle model is the Bluetooth communication protocol based on the vehicle model signal, it sends a Bluetooth-formatted cover opening drive signal to the vehicle via the Bluetooth module, so that the charging pile supports opening the charging cover of the vehicle using the Bluetooth communication protocol. Similarly, when the control circuit 30 determines that the communication protocol of the vehicle model is the conventional radio frequency protocol based on the vehicle model signal, it sends a 433MHz radio frequency cover opening drive signal to the vehicle via the 433 module, so that the charging pile supports opening the charging cover of the vehicle using the conventional radio frequency protocol.

[0050] In this embodiment, the charging gun 20 can output a first trigger signal when it is triggered in various ways. For example, the charging gun 20 is equipped with a button. When the user pulls out the charging gun 20 and needs to insert it into the car's charging port, he only needs to press the button. The button outputs a first trigger signal to the control circuit 30, so that the control circuit 30 sends an opening drive signal to the car through the corresponding type of communication module 40 according to the vehicle model signal. When the car receives the opening drive signal, it controls its own charging cover to move.

[0051] For example, the charging gun 20 is equipped with a sensor for detecting whether the charging gun 20 has been pulled out of the charging pile body 10, such as a Hall sensor, photoelectric sensor or micro switch. When the user pulls out the charging gun 20, the sensor outputs a first trigger signal to the control circuit 30, so that the control circuit 30 sends an opening drive signal to the car through the corresponding type of communication module 40. When the car receives the opening drive signal, it controls its own charging cover to move.

[0052] In this embodiment, when the charging gun 20 is not triggered, such as when the button on the charging gun 20 in the above embodiment is not pressed or the charging gun 20 is not pulled out from the charging pile body 10, a second trigger signal is output to the control circuit 30, so that the control circuit 30 cannot output the cover opening drive signal to the car, ensuring that the charging cover drive circuit of this utility model only sends the cover opening drive signal when the user's intention is clear, thereby improving the reliability and safety of the charging pile.

[0053] In this embodiment, reference Figure 2 The control circuit 30 can be implemented using a main controller 31 and a pull-up circuit 32. The main controller 31 can be one of the following: MCU (Microcontroller Unit), DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array), or SOC (System On Chip). The main controller 31 also has a first signal terminal. The first terminal of the pull-up circuit 32 is used to connect to a first voltage. The second terminal of the pull-up circuit 32 is electrically connected to the first signal terminal of the main controller 31 and the charging gun 20, respectively. The second terminal of the pull-up circuit 32 is used to connect to the first trigger signal.

[0054] When the pull-up circuit 32 receives the first trigger signal, the pull-up circuit 32 stops pulling up the voltage of the first signal terminal so that the voltage of the first signal terminal is low. When the main controller 31 detects that the voltage of the first signal terminal is low, it outputs the cover opening drive signal through the corresponding type of communication module 40 according to the vehicle model signal.

[0055] The pull-up circuit 32 can be implemented using at least one resistor, for example, reference... Figure 3 The pull-up circuit 32 includes a first resistor R1. A first terminal of the first resistor R1 is connected to a first voltage, and a second terminal of the first resistor R1 is grounded. The second terminal of the first resistor R1 is also connected to a first trigger signal and is also connected to the first signal terminal. When the second terminal of the first resistor R1 receives the first trigger signal, such as a low-level signal, the voltage at the second terminal of the first resistor R1 is pulled low, and the voltage at the first signal terminal is also pulled low. When the main controller 31 detects that the voltage at the first signal terminal is low, it outputs an opening drive signal through the corresponding type of communication module 40 based on the vehicle model signal.

[0056] In addition, refer to Figure 4The control circuit 30 may further include a filter circuit 33, the first terminal of which is connected to the second terminal of the pull-up circuit 32. The filter circuit 33 is used to filter out high-frequency interference present in the signal transmitted from the pull-up circuit 32 to the first signal terminal, preventing interference with the main controller 31's detection of the first signal terminal voltage. The filter circuit 33 can be implemented using at least one capacitor, for example, a reference capacitor. Figure 5 The filter circuit 33 includes a first capacitor C1, the first end of which is connected to the second end of the pull-up circuit 32, and the second end of which is grounded. The first capacitor C1 and the line impedance form an RC filter to filter out high-frequency interference in the signal transmitted to the first signal terminal.

[0057] Furthermore, to avoid electrostatic interference, the control circuit 30 also includes a second resistor R2, referenced... Figure 5 The second resistor R2 is connected in series in the path between the first signal terminal of the main controller 31 and the second terminal of the pull-up circuit 32; the second resistor R2 is used to form an electrostatic protection circuit with the first capacitor C1. The electrostatic protection circuit suppresses static electricity and prevents static electricity from interfering with the first signal terminal of the main controller 31.

[0058] In addition, the control circuit 30 can also be implemented using a main controller 31 and a comparator. The output of the comparator is connected to the main controller 31. The inverting input of the comparator is connected to a reference voltage (the voltage of the first trigger signal is greater than the reference voltage). The non-inverting input is used to connect to the first trigger signal. When the non-inverting input receives the first trigger signal, the comparator outputs a high-level signal to the main controller 31, so that the main controller 31 outputs a cover opening drive signal to the car through the corresponding type of communication module 40. No restrictions are imposed here.

[0059] This utility model relates to a charging cover drive circuit applied to a charging pile. The charging pile includes a charging pile body 10 and a charging gun 20 electrically connected to the charging pile body 10. The charging pile body 10 is used to receive vehicle model signals sent by an external terminal. The charging gun 20 is used to output a first trigger signal when triggered. The charging cover drive circuit includes a control circuit 30 and multiple communication modules 40. The control circuit 30 is electrically connected to the charging gun 20 and the charging pile body 10 respectively. The multiple communication modules 40 are electrically connected to the control circuit 30. The communication modules 40 are used to establish a communication connection with the vehicle. The multiple communication modules 40 include at least two types of communication modules 40. The control circuit 30 is used to output an opening drive signal to the vehicle through the corresponding type of communication module 40 according to the received first trigger signal and vehicle model signal, so that the vehicle controls its own charging cover operation. With this configuration, the present invention integrates multiple types of communication modules 40 to build a communication protocol library covering multiple vehicle models, and dynamically selects the matching communication channel according to the user's preset vehicle model information, so as to achieve accurate adaptation of charging covers of different brands and different vehicle models. In practical applications, users do not need to manually operate the vehicle charging cover, but only need to select the corresponding vehicle model and trigger the charging gun 20 through a handheld terminal such as a mobile phone APP to achieve automatic opening of the cover, which improves the user experience.

[0060] This utility model also proposes a charging cover driving board, including a circuit board and the above-described charging cover driving circuit disposed on the circuit board.

[0061] It is worth noting that since the charging cover driver board of this utility model is based on the charging cover driver circuit described above, the embodiments of the charging cover driver board of this utility model include all the technical solutions of all the embodiments of the charging cover driver circuit described above, and the technical effects achieved are exactly the same, so they will not be repeated here.

[0062] In this embodiment, the charging pile body 10 includes a charging pile motherboard, which is connected to the charging cover drive board. The charging pile motherboard receives vehicle model signals sent by an external terminal and sends them to the charging cover drive board. The charging cover drive board then outputs an opening drive signal to the vehicle via a corresponding type of communication module 40 based on the vehicle model signal and a first trigger signal, so that the vehicle controls its own charging cover operation. This configuration, designing the charging cover drive board as an independent module and equipping it with a dedicated control circuit 30, optimizes the overall architecture of the charging pile, reducing not only the computational burden on the charging pile motherboard but also the coupling between the charging pile motherboard and the charging cover drive board.

[0063] This utility model also proposes a charging pile, including a charging pile body 10, a charging gun 20 electrically connected to the charging pile body 10, and the charging cover drive plate mentioned above; the charging cover drive plate is disposed inside the charging pile body 10.

[0064] The charging pile body 10 is used to receive vehicle model signals sent by an external terminal, and the charging gun 20 is used to output a first trigger signal when triggered.

[0065] It is worth noting that since the charging pile of this utility model is based on the charging cover drive plate described above, the embodiments of the charging pile of this utility model include all the technical solutions of all the embodiments of the charging cover drive plate described above, and the technical effects achieved are exactly the same, so they will not be repeated here.

[0066] In one embodiment of this utility model, reference is made to Figure 6 The charging gun 20 includes a normally open and normally closed switch S1, which has a first normally open contact and a second normally open contact. The first normally open contact is connected to the control circuit 30, and the second normally open contact is grounded. The normally open and normally closed switch S1 circuit is used to open the path between the first normally open contact and the second normally open contact when triggered, so that the control circuit 30 receives a low-level signal.

[0067] The first trigger signal is the low-level signal.

[0068] In this embodiment, the normally open and normally closed switch S1 can be a button located on the charging gun 20. When the user presses the button, the conductive element of the normally open and normally closed switch S1 is connected to the first normally open contact and the second normally open contact respectively, so as to open the path between the first normally open contact and the second normally open contact, so that the signal terminal of the control circuit 30 connected to the first normally open contact is grounded. At this time, the control circuit 30 detects a low-level signal. When the control circuit 30 detects a low-level signal, it outputs an opening drive signal to the car through the corresponding type of communication module 40 according to the vehicle model signal, so as to make the car control its own charging cover to operate.

[0069] Understandably, the normally open and normally closed switch S1 also has a first normally closed contact and a second normally closed contact. When the normally open and normally closed switch S1 is not triggered, the conductive part of the normally open and normally closed switch S1 connects the first normally closed contact and the second normally closed contact. At this time, the path between the first normally open contact and the second normally open contact is broken. The signal terminal of the control circuit 30 used to connect to the first normally open contact is not grounded, that is, it receives a high-level signal. When the control circuit 30 receives a high-level signal, it cannot output the cover opening drive signal.

[0070] The above description is based on an embodiment of the control circuit 30 including the main controller 31 and the pull-up circuit 32, with reference to... Figure 7The second end of the pull-up circuit 32 is connected to the second normally open contact. When the normally open and normally closed switch S1 is triggered, the path between the first normally open contact and the second normally open contact is connected, so that the second end of the pull-up circuit 32 is grounded. At this time, the voltage of the first signal terminal of the main controller 31 is low. When the main controller 31 detects that the voltage of the first signal terminal is low, it outputs the cover opening drive signal to the car through the corresponding type of communication module 40 according to the vehicle model signal, so that the car controls its own charging cover to operate.

[0071] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A charging cover driving circuit applied to a charging pile, the charging pile comprising a charging pile body and a charging gun electrically connected with the charging pile body; the charging pile body is used for receiving a vehicle type signal sent by an external terminal, and the charging gun is used for outputting a first trigger signal when triggered, characterized in that, The charging cover driving circuit comprises: a control circuit electrically connected with the charging gun and the charging pile body respectively; a plurality of communication modules electrically connected with the control circuit; the communication modules are used to establish a communication connection with the automobile; wherein the plurality of communication modules at least include two types of communication modules; the control circuit is used to output an open cover driving signal to the automobile through the communication module of a corresponding type according to the received first trigger signal and the vehicle type signal, so as to control the action of the charging cover of the automobile.

2. The charging cover drive circuit of claim 1, wherein, The control circuit comprises: a main controller electrically connected with the charging pile body, the main controller further having a first signal terminal; a pull-up circuit, the first end of the pull-up circuit being used to access a first voltage, the second end of the pull-up circuit being electrically connected with the first signal terminal of the main controller and the charging gun respectively; wherein the second end of the pull-up circuit is used to access the first trigger signal.

3. The charging cover drive circuit of claim 2, wherein, The pull-up circuit comprises: a first resistor, the first end of the first resistor being used to access a first voltage, the second end of the first resistor being grounded, the second end of the first resistor being further used to access a first trigger signal, and the second end of the first resistor being further connected with the first signal terminal.

4. The charging cover drive circuit of claim 2, wherein, The control circuit further comprises a filter circuit, the first end of the filter circuit being connected with the second end of the pull-up circuit.

5. The charging cap driving circuit according to claim 4, wherein The filter circuit comprises: a first capacitor, the first end of the first capacitor being connected with the second end of the pull-up circuit, and the second end of the first capacitor being grounded.

6. The charging cap driving circuit according to claim 5, wherein The control circuit further comprises a second resistor, the second resistor being arranged in series in the path between the first signal terminal of the main controller and the second end of the pull-up circuit; the second resistor is used to form an electrostatic protection circuit with the first capacitor.

7. The charging cap driving circuit according to any one of claims 1 to 6, wherein The plurality of communication modules at least include a Bluetooth module and a 433 module.

8. A charging cover drive board, characterized by, The charging cover driving board comprises a circuit board and a charging cover driving circuit as claimed in any one of claims 1-6 arranged on the circuit board.

9. A charging post, characterized in that The charging pile comprises a charging pile body, a charging gun electrically connected with the charging pile body, and a charging cover driving board as claimed in claim 8; the charging cover driving board is arranged in the charging pile body; wherein the charging pile body is used to receive a vehicle type signal sent by an external terminal, and the charging gun is used to output a first trigger signal when triggered.

10. The charging station of claim 9, wherein, The charging gun comprises a normally open and normally closed switch, the normally open and normally closed switch having a first normally open contact and a second normally open contact, the first normally open contact being connected with the control circuit, and the second normally open contact being grounded; the normally open and normally closed switch circuit is used to turn on the path between the first normally open contact and the second normally open contact when triggered, so that the control circuit receives a low-level signal; wherein the first trigger signal is the low-level signal.

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