Electronic lock control circuit of charging seat

Abstract

The utility model discloses an electronic lock control circuit of a charging seat, which comprises a vehicle end system connection module, an electronic lock locking driving module, an electronic lock unlocking driving module, an electronic lock motor execution module and a lock state feedback module, the vehicle end system connecting module receives a driving power supply signal from a vehicle control end and then outputs the driving power supply signal to the electronic lock locking driving module and the electronic lock unlocking driving module; when the driving power supply signal is a locking signal, the electronic lock locking driving module is switched on, the electronic lock unlocking driving module is switched off, and the electronic lock motor execution module acts to lock the electronic lock; when the driving power supply signal is an unlocking signal, the electronic lock unlocking driving module is switched on, the electronic lock locking driving module is switched off, and the electronic lock motor execution module acts reversely to unlock the electronic lock; and the vehicle control end judges the on-off state of the electronic lock according to the change of the recovery signal received by the lock state feedback module. Therefore, the unlocking or locking state of the electronic lock can be fed back to the vehicle control end in time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle control, in particular to an electronic lock control circuit of a charging seat. Background Art

[0002] The new energy electric vehicle charging standard stipulates that an electronic locking mechanism is needed to ensure a good connection between the charging head and the vehicle body charging seat to achieve safe charging of new energy electric vehicles.

[0003] However, the existing electronic locks for new energy vehicles do not have a circuit that can synchronize the working status of the electronic lock to the control center of the vehicle. As a result, when the charging plug of the new energy vehicle is not properly inserted into the charging socket of the new energy vehicle during charging, or when the charging plug cannot be locked, the new energy vehicle cannot be charged normally, and the users of the new energy vehicle cannot get feedback, thereby losing a lot of charging time. Utility Model Content

[0004] In view of the above problems in the prior art, the purpose of this article is to provide an electronic lock control circuit for a charging station, comprising:

[0005] A vehicle-side system connection module, an electronic lock locking drive module, an electronic lock unlocking drive module, an electronic lock motor execution module and a lock state feedback module. The vehicle-side system connection module receives a driving power signal from the vehicle control end and outputs it to the electronic lock locking drive module and the electronic lock unlocking drive module; one end of the electronic lock locking drive module is connected to the vehicle-side system connection module, and the other end is connected to the electronic lock motor execution module. When the driving power signal is a locking signal, the electronic lock locking drive module is turned on and the electronic lock unlocking drive module is turned off, and the electronic lock motor execution module The module operates to lock the electronic lock; one end of the electronic lock unlocking drive module is connected to the vehicle-end system connection module, and the other end is connected to the electronic lock motor execution module. When the driving power supply signal is an unlocking signal, the electronic lock unlocking drive module is turned on and the electronic lock locking drive module is turned off, and the electronic lock motor execution module reverses to unlock the electronic lock; one end of the lock state feedback module receives the return signal of the electronic lock, and the other end is connected to the feedback pin of the vehicle-end system connection module. The vehicle control end determines the switch state of the electronic lock according to the change of the return signal.

[0006] Preferably, the lock state feedback module includes a first feedback circuit, one end of the first feedback circuit is connected to the electronic lock unlocking drive module, and the other end is connected to the feedback pin, and the positive drive pin in the vehicle-end system connection module is also connected between the first feedback circuit and the electronic lock unlocking drive module.

[0007] Preferably, the lock state feedback module includes a second feedback circuit, one end of the second feedback circuit is connected to the electronic lock locking drive module, and the other end is connected to the feedback pin, and the negative drive pin in the vehicle-end system connection module is also connected between the second feedback circuit and the electronic lock locking drive module.

[0008] Preferably, the locking signal is a level signal that applies a positive voltage to the positive driving pin and a negative voltage to the negative driving pin; the unlocking signal is a level signal that applies a negative voltage to the positive driving pin and a positive voltage to the negative driving pin.

[0009] Preferably, when the driving power signal received by the vehicle-end system connection module is the locking signal, the locking completion of the electronic lock triggers the disconnection of the first feedback circuit, while the second feedback circuit closes to feed back the change of the recovery signal.

[0010] Preferably, the vehicle control end is configured to stop outputting the locking signal after the second feedback circuit feeds back the change of the recovery signal.

[0011] Preferably, when the driving power signal received by the vehicle-side system connection module is the unlocking signal, the unlocking completion of the electronic lock triggers the disconnection of the second feedback circuit, while the first feedback circuit closes to feed back the change of the recovery signal.

[0012] Preferably, the vehicle control end is configured to stop outputting the unlocking signal after the first feedback circuit feeds back the change of the recovery signal.

[0013] Preferably, the electronic lock locking drive module includes a first switch tube, a first resistor, a first voltage regulator diode and a first diode, the gate of the first switch tube is connected to the cathode of the first voltage regulator diode, the anode of the first voltage regulator diode is connected to the anode of the first diode, and the cathode of the first diode is connected to the input end of the second feedback circuit; the source of the first switch tube is connected to the positive input end of the electronic lock motor execution module; the drain of the first switch tube is connected to the positive drive pin; the first resistor is connected between the gate and the drain of the first switch tube.

[0014] Preferably, the second feedback circuit includes a second switch and a third diode, the common end of the second switch is connected to the cathode of the first diode, the moving contact of the second switch is at the normally open end of the second switch by default, the normally closed end of the second switch is connected to the anode of the third diode, and the cathode of the third diode is connected to the feedback pin.

[0015] Preferably, the electronic lock unlocking drive module includes a second switch tube, a second resistor, a second voltage regulator diode and a second diode, the gate of the second switch tube is connected to the cathode of the second voltage regulator diode, the anode of the second voltage regulator diode is connected to the anode of the second diode, and the cathode of the second diode is connected to the input end of the second feedback circuit; the source of the second switch tube is connected to the reverse input end of the electronic lock motor execution module; the drain of the second switch tube is connected to the negative electrode drive pin; and the second resistor is connected between the gate and drain of the second switch tube.

[0016] Preferably, the first feedback circuit includes a first switch and a fourth diode, the common end of the first switch is connected to the cathode of the second diode, the moving contact of the first switch is at the normally closed end of the first switch by default, the normally closed end is connected to the anode of the fourth diode, and the cathode of the fourth diode is connected to the feedback pin.

[0017] According to the electronic lock control circuit of the charging stand in this article, the locking or unlocking status of the electronic lock can be judged in real time, and the vehicle control end can be informed in time, thus avoiding the false connection of the charging plug and ensuring the charging quality of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a circuit schematic diagram of the electronic lock control circuit of the charging base in the preferred embodiment of this article.

[0020] Figure 2 It is a schematic diagram of the level signals of the recovery signal and the driving power supply signal. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present disclosure are described below in conjunction with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure. In addition, the embodiments and features in the embodiments of the present disclosure may be combined with each other if no conflict occurs.

[0022] like Figure 1 and Figure 2 As shown, this article provides an electronic lock control circuit of a charging stand in a preferred embodiment, including:

[0023] The vehicle-side system connection module J1, the electronic lock locking drive module, the electronic lock unlocking drive module, the electronic lock motor execution module J2 and the lock state feedback module. The vehicle-side system connection module J1 receives the driving power signal from the vehicle control end and outputs it to the electronic lock locking drive module and the electronic lock unlocking drive module; one end of the electronic lock locking drive module is connected to the vehicle-side system connection module J1, and the other end is connected to the electronic lock motor execution module J2. When the driving power signal is a locking signal, the electronic lock locking drive module is turned on and the electronic lock unlocking drive module is turned off, and the electronic lock motor execution module J2 The electronic lock is locked by the action; one end of the electronic lock unlocking drive module is connected to the vehicle-end system connection module J1, and the other end is connected to the electronic lock motor execution module J2. When the driving power signal is an unlocking signal, the electronic lock unlocking drive module is turned on and the electronic lock locking drive module is turned off, and the electronic lock motor execution module J2 reverses to unlock the electronic lock; one end of the lock state feedback module receives the return signal of the electronic lock, and the other end is connected to the feedback pin Feedback of the vehicle-end system connection module J1. The vehicle control end determines the switch state of the electronic lock according to the change of the return signal.

[0024] According to the electronic lock control circuit of the charging base of this embodiment, the locking or unlocking status of the electronic lock can be determined in real time, and the vehicle control terminal can be informed in time, thereby avoiding false connection of the charging plug and ensuring the charging quality of the new energy vehicle.

[0025] Specifically, Figure 1 and Figure 2 As shown, the lock state feedback module includes a first feedback circuit, one end of the first feedback circuit is connected to the electronic lock unlocking drive module, and the other end is connected to the feedback pin Feedback, and the positive drive pin Drive1 in the vehicle-end system connection module J1 is also connected between the first feedback circuit and the electronic lock unlocking drive module.

[0026] Specifically, Figure 1 and Figure 2 As shown, the lock state feedback module includes a second feedback circuit, one end of the second feedback circuit is connected to the electronic lock locking drive module, and the other end is connected to the feedback pin Feedback, and the negative drive pin Drive2 in the vehicle-end system connection module J1 is also connected between the second feedback circuit and the electronic lock locking drive module.

[0027] Specifically, in this embodiment, the locking signal is a level signal that applies a positive voltage to the positive driving pin Drive1 and a negative voltage to the negative driving pin Drive2; the unlocking signal is a level signal that applies a negative voltage to the positive driving pin Drive1 and a positive voltage to the negative driving pin Drive2.

[0028] Of course, it is understandable that in other embodiments, it is also possible to specify that a level signal of applying a positive voltage to the positive driving pin Drive1 and a negative voltage to the negative driving pin Drive2 represents an unlocking signal, and a level signal of applying a negative voltage to the positive driving pin Drive1 and a positive voltage to the negative driving pin Drive2 represents a locking signal. Therefore, the corresponding circuit structure should be adjusted accordingly.

[0029] In this embodiment, when the driving power signal received by the vehicle-side system connection module J1 is the locking signal, the locking completion of the electronic lock triggers the disconnection of the first feedback circuit, while the second feedback circuit closes to feed back the change of the recovery signal.

[0030] Preferably, if Figure 2 As shown, the vehicle control end is configured to stop outputting the locking signal after the second feedback circuit feeds back the change of the recovery signal.

[0031] In this embodiment, when the driving power signal received by the vehicle-side system connection module J1 is the unlocking signal, the unlocking completion of the electronic lock triggers the disconnection of the second feedback circuit, while the first feedback circuit closes to feed back the change of the recovery signal.

[0032] Preferably, if Figure 2 As shown, the vehicle control end is configured to stop outputting the unlocking signal after the first feedback circuit feeds back the change of the recovery signal.

[0033] Next reference Figure 1 The specific structure of the electronic lock control circuit of the charging stand in the embodiment of this article is described.

[0034] like Figure 1As shown, the electronic lock locking drive module includes a first switch tube Q1, a first resistor R1, a first voltage regulator diode ZD1 and a first diode D1, the gate of the first switch tube Q1 is connected to the cathode of the first voltage regulator diode ZD1, the anode of the first voltage regulator diode ZD1 is connected to the anode of the first diode D1, and the cathode of the first diode D1 is connected to the input end of the second feedback circuit; the source of the first switch tube Q1 is connected to the positive input end M+ of the electronic lock motor execution module J2; the drain of the first switch tube Q1 is connected to the positive drive pin Drive1; the first resistor R1 is connected between the gate and the drain of the first switch tube Q1.

[0035] like Figure 1 As shown, the second feedback circuit includes a second switch K2 and a third diode D3, the common end of the second switch K2 is connected to the cathode of the first diode D1, and the moving contact of the second switch K2 is at the normally open end ( Figure 1 The contact 3 of the second switch K2 in the middle), the normally closed end ( Figure 1 The contact 2) of the second switch K2 is connected to the anode of the third diode D3, and the cathode of the third diode D3 is connected to the feedback pin Feedback.

[0036] like Figure 1 As shown, the electronic lock unlocking drive module includes a second switch tube Q2, a second resistor K2, a second voltage regulator diode ZD2 and a second diode D2, the gate of the second switch tube Q2 is connected to the cathode of the second voltage regulator diode ZD2, the anode of the second voltage regulator diode ZD2 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is connected to the input end of the second feedback circuit; the source of the second switch tube Q2 is connected to the reverse input end M- of the electronic lock motor execution module J2; the drain of the second switch tube Q2 is connected to the negative electrode drive pin Drive2; the second resistor K2 is connected between the gate and the drain of the second switch tube Q2.

[0037] like Figure 1 As shown, the first feedback circuit includes a first switch K1 and a fourth diode D4, the common end of the first switch K1 is connected to the cathode of the second diode D2, and the moving contact of the first switch K1 is at the normally closed end ( Figure 1 The normally closed end is connected to the anode of the fourth diode D4, and the cathode of the fourth diode D4 is connected to the feedback pin Feedback.

[0038] Next, combine Figure 1 and Figure 2The working principle of the electronic lock control circuit of the charging base of this embodiment is described in detail.

[0039] 1. The process of electronic lock from initial state to locking completion:

[0040] When the system connection module switches from not receiving a driving voltage signal to receiving a driving power signal as a locking signal, that is, the vehicle control terminal applies a positive voltage to the positive driving pin Drive1 of the system connection module and a negative voltage level signal to the negative driving pin Drive2, the electronic lock locking driving module is turned on, the electronic lock unlocking driving module is turned off, and the electronic lock motor execution module J2 executes the motor to rotate forward. At the same time, the lock state feedback module will feed back the execution action of the electronic lock motor execution module J2 to the vehicle in the form of a stable high level (it can also be understood as: before the electronic lock is locked in place, the moving contact of the first switch K1 of the first feedback circuit is at the normally closed end of the first switch K1 by default, and the second feedback circuit is disconnected. Since the positive driving pin Driv e1 is at a high level at this time, and the first feedback circuit feeds back the execution action of the electronic lock motor execution module J2 to the vehicle in the form of a stable high level). As time changes and the motor rotates until the motor rotates into place, the lock state feedback module will pull down the high level of the electronic lock in place to a stable low level signal and feed it back to the vehicle through the vehicle-end system connection module J1 (it can also be understood as: the electronic lock is locked in place, the locking rod disconnects the first feedback circuit, and the second feedback circuit is closed. Since the negative drive pin Drive2 connected to the second feedback circuit is at a low level at this time, the second feedback circuit feeds back a stable low level signal to the vehicle through the vehicle-end system connection module J1). After receiving the low level signal, the vehicle will disconnect the drive power signal to stop the circuit from working, completing the locking process of the electronic lock.

[0041] 2. The process from locking to unlocking of the electronic lock:

[0042] When the driving power signal received by the system connection module is an unlocking signal, that is, when the vehicle control terminal applies a negative voltage to the positive driving pin Drive1 of the system connection module and a positive voltage level signal to the negative driving pin Drive2, the electronic lock unlocking driving module is turned on, the electronic lock locking driving module is turned off, and the electronic lock motor execution module J2 executes the motor to rotate in the opposite direction. At the same time, the lock state feedback module will feed back the execution action of the electronic lock motor execution module J2 to the vehicle in the form of a stable high level (it can be understood that before the electronic lock is unlocked, the first switch K1 of the first feedback circuit is disconnected, and the second switch K2 of the second feedback circuit is closed. Since the negative driving pin Drive2 of the second feedback circuit is at a high level at this time, The second feedback circuit feeds back the execution action of the electronic lock motor execution module J2 to the vehicle in the form of a stable high level). As time changes and the motor rotates until the motor rotates to the right position, the lock status feedback module pulls down the high level of the electronic lock being unlocked to a stable low level signal and feeds it back to the vehicle through the vehicle-end system connection module J1 (it can also be understood as: the electronic lock is unlocked, the lock rod closes the first feedback circuit, and the second feedback circuit is disconnected. Since the positive drive pin Drive1 connected to the first feedback circuit is at a low level at this time, the first feedback circuit feeds back a stable low level signal to the vehicle through the vehicle-end system connection module J1). After receiving the low level signal, the vehicle will disconnect the drive power signal to stop the circuit from working, completing the unlocking process of the electronic lock.

[0043] According to the electronic lock control circuit of the charging base of this embodiment, the locking or unlocking status of the electronic lock can be determined in real time, and the vehicle control terminal can be informed in time, thereby avoiding false connection of the charging plug and ensuring the charging quality of the new energy vehicle.

[0044] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0045] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0046] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this article.

[0048] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0049] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this article.

[0050] In addition, each functional unit in each embodiment of this invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

[0051] Specific embodiments are used in this article to illustrate the principles and implementation methods of this article. The description of the above embodiments is only used to help understand the methods and core ideas of this article. At the same time, for general technicians in this field, according to the ideas of this article, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on this article.

Claims

1. An electronic lock control circuit for a charging station, characterized in that: include: A vehicle-side system connection module, an electronic lock locking drive module, an electronic lock unlocking drive module, an electronic lock motor execution module and a lock state feedback module. The vehicle-side system connection module receives a driving power signal from the vehicle control end and outputs it to the electronic lock locking drive module and the electronic lock unlocking drive module; one end of the electronic lock locking drive module is connected to the vehicle-side system connection module, and the other end is connected to the electronic lock motor execution module. When the driving power signal is a locking signal, the electronic lock locking drive module is turned on and the electronic lock unlocking drive module is turned off, and the electronic lock motor execution module is activated to lock the electronic lock; one end of the electronic lock unlocking drive module is connected to the vehicle-side system connection module, and the other end is connected to the electronic lock motor Execution module, when the driving power supply signal is an unlocking signal, the electronic lock unlocking driving module is turned on and the electronic lock locking driving module is turned off, and the electronic lock motor execution module reverses to unlock the electronic lock; one end of the lock state feedback module receives the recovery signal of the electronic lock, and the other end is connected to the feedback pin of the vehicle-end system connection module, and the vehicle control end determines the switch state of the electronic lock according to the change of the recovery signal; the lock state feedback module includes a first feedback circuit, one end of the first feedback circuit is connected to the electronic lock unlocking driving module, and the other end is connected to the feedback pin, and the positive drive pin in the vehicle-end system connection module is also connected between the first feedback circuit and the electronic lock unlocking driving module.

2. The electronic lock control circuit of the charging station according to claim 1, characterized in that: The lock state feedback module includes a second feedback circuit, one end of the second feedback circuit is connected to the electronic lock locking drive module, and the other end is connected to the feedback pin, and the negative electrode drive pin in the vehicle-end system connection module is also connected between the second feedback circuit and the electronic lock locking drive module.

3. The electronic lock control circuit of the charging station according to claim 2, characterized in that: The locking signal is a level signal that applies a positive voltage to the positive driving pin and a negative voltage to the negative driving pin; the unlocking signal is a level signal that applies a negative voltage to the positive driving pin and a positive voltage to the negative driving pin.

4. The electronic lock control circuit of the charging station according to claim 3, characterized in that: When the driving power signal received by the vehicle-side system connection module is the locking signal, the locking completion of the electronic lock triggers the first feedback circuit to disconnect, while the second feedback circuit is closed to feed back the change of the recovery signal.

5. The electronic lock control circuit of the charging station according to claim 4, characterized in that: The vehicle control end is configured to stop outputting the locking signal after the second feedback circuit feeds back the change of the recovery signal.

6. The electronic lock control circuit of the charging station according to claim 4, characterized in that: When the driving power signal received by the vehicle-side system connection module is the unlocking signal, the unlocking completion of the electronic lock triggers the disconnection of the second feedback circuit, while the first feedback circuit closes to feed back the change of the recovery signal.

7. The electronic lock control circuit of the charging station according to claim 6, characterized in that: The vehicle control end is configured to stop outputting the unlocking signal after the first feedback circuit feeds back the change of the recovery signal.

8. The electronic lock control circuit of the charging station according to claim 3, characterized in that: The electronic lock locking drive module includes a first switch tube, a first resistor, a first voltage regulator diode and a first diode, the gate of the first switch tube is connected to the cathode of the first voltage regulator diode, the anode of the first voltage regulator diode is connected to the anode of the first diode, and the cathode of the first diode is connected to the input end of the second feedback circuit; the source of the first switch tube is connected to the positive input end of the electronic lock motor execution module; the drain of the first switch tube is connected to the positive drive pin; the first resistor is connected between the gate and the drain of the first switch tube.

9. The electronic lock control circuit of the charging station according to claim 8, characterized in that: The second feedback circuit includes a second switch and a third diode, the common end of the second switch is connected to the cathode of the first diode, the moving contact of the second switch is at the normally open end of the second switch by default, the normally closed end of the second switch is connected to the anode of the third diode, and the cathode of the third diode is connected to the feedback pin.

10. The electronic lock control circuit of the charging station according to claim 3, characterized in that: The electronic lock unlocking drive module includes a second switch tube, a second resistor, a second voltage regulator diode and a second diode, the gate of the second switch tube is connected to the cathode of the second voltage regulator diode, the anode of the second voltage regulator diode is connected to the anode of the second diode, and the cathode of the second diode is connected to the input end of the second feedback circuit; the source of the second switch tube is connected to the reverse input end of the electronic lock motor execution module; the drain of the second switch tube is connected to the negative electrode drive pin; and the second resistor is connected between the gate and the drain of the second switch tube.

11. The electronic lock control circuit of the charging station according to claim 10, characterized in that: The first feedback circuit includes a first switch and a fourth diode, the common end of the first switch is connected to the cathode of the second diode, the moving contact of the first switch is at the normally closed end of the first switch by default, the normally closed end is connected to the anode of the fourth diode, and the cathode of the fourth diode is connected to the feedback pin.

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