Scram button control method and system for charging pile

Abstract

The invention discloses an emergency stop button control method for a charging pile, which comprises the following steps: after detecting that an emergency stop button is triggered, executing an emergency stop operation by the charging pile; obtaining a safety self-checking result of the charging pile; based on the charging pile safety self-checking result, whether a charging fault exists or not is judged; wherein when it is judged that the charging fault does not exist, an automatic reset instruction is issued to the control rotation device, so that the control rotation device automatically resets the scram button. The self-service electric vehicle charging pile does not need to be manually reset by operation and maintenance personnel, the manual input amount of the operation and maintenance personnel and waste of resources are reduced while safe charging of the charging pile is guaranteed, and the service quality of the self-service electric vehicle charging pile is improved.

Description

Technical Field

[0001] The present invention relates to the field of charging pile management and control, and in particular to a method and system for controlling an emergency stop button of a charging pile. Background Art

[0002] With the rapid development and popularization of new energy vehicles, the number of charging stations (such as charging piles) is also increasing. When charging electric vehicles through charging piles, since charging piles are usually self-service and there are hidden dangers of electricity use during the charging process, in order to protect the safety of users in emergencies, emergency stop buttons (such as self-locking emergency stop buttons) will be set on the charging piles, so that users can stop the equipment by pressing the self-locking emergency stop button. In actual use, if the user presses the self-locking emergency stop button, the charging pile will stop running immediately until someone resets it to make the charging pile run again.

[0003] However, in some special cases, users may not be clear about the operation process of the emergency stop button, or they may be curious and may manually press the self-locking emergency stop button when there is no safety hazard. Since most users do not have electrical expertise, they usually forget to restore the self-locking emergency stop button after it is pressed. In this case, the operation and maintenance personnel are required to manually reset the self-locking emergency stop button on the charging pile every time, which results in excessive manual input by the operation and maintenance personnel, seriously affecting the service quality of the charging station and causing serious waste of resources. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method and system for controlling an emergency stop button for a charging pile, so as to solve the problem that the charging pile cannot be used any further after the emergency stop button is deliberately pressed when there is no charging fault in the charging pile.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for controlling an emergency stop button of a charging pile, characterized in that it comprises the following steps: S1: After detecting that the emergency stop button is triggered, the charging pile performs an emergency stop operation; S2: Preset multiple safety self-check items, and perform a safety self-check on the charging pile based on the multiple safety self-check items to obtain a safety self-check result of the charging pile; S3: Based on the safety self-inspection result of the charging pile, determine whether there is a charging fault; wherein, when it is determined that there is no charging fault, send an automatic reset instruction to the control rotating device so that the control rotating device automatically resets the emergency stop button.

[0006] Further, in the emergency stop button control method of the present invention, in step S1, the emergency stop operation includes the following steps: Stop charging electric vehicles; Adjust the DCDC power module to the off state and disconnect the relay; Unlock the charging gun.

[0007] Furthermore, in the emergency stop button control method of the present invention, in step S2, obtaining the charging pile safety self-test result includes: Based on the plurality of safety self-check items, the charging pile is subjected to a safety self-check to obtain indicator data of the charging pile in each safety self-check item, and determine whether the indicator data is normal; when all the indicator data are normal, it is determined that the charging pile self-check is normal; When at least one of the indicator data is abnormal, fault repair is performed on the safety self-check item corresponding to the abnormal indicator data; When all the safety self-check items corresponding to the abnormal indicator data are successfully repaired, the charging pile self-check is determined to be normal; when there is at least one safety self-check item corresponding to the abnormal indicator data that has not been successfully repaired, the charging pile self-check is determined to be abnormal.

[0008] Furthermore, in the emergency stop button control method described in the present invention, the safety self-check items include: the internal ambient temperature of the charger, the fuse temperature, the charging gun temperature, and the communication status between the charging pile and the external platform server.

[0009] Furthermore, in the emergency stop button control method described in the present invention, in step S2, the fault repair of the abnormal safety self-check item includes: when the abnormal safety self-check item is an abnormal communication between the charging pile and the external platform server, the charging pile disconnects the current connection operation and re-establishes the connection with the external platform server until it is successfully connected to the external platform server.

[0010] Furthermore, in the emergency stop button control method of the present invention, in step S3, the following steps are included: When the self-check of the charging pile is normal, there is no charging fault in the charging pile; when the self-check of the charging pile is abnormal, there is a charging fault in the charging pile.

[0011] Correspondingly, another object of the present invention is to provide a charging pile emergency stop button control system, which can effectively implement the above-mentioned emergency stop button control method of the present invention, and the charging pile emergency stop button control system includes: a main control unit, a rotation control device and an emergency stop button, the main control unit is connected to the rotation control device and the emergency stop button respectively, and the rotation control device is connected to the emergency stop button, wherein the main control unit is used to determine whether there is a charging fault in the charging pile, and when there is no charging fault in the charging pile, an automatic reset instruction is sent to the control rotation device to make the control rotation device automatically reset the emergency stop button.

[0012] Furthermore, in the charging pile emergency stop button control system described in the present invention, it also includes a DCDC charging module, which is connected to the main control unit. The DCDC charging module is used to receive the emergency stop command sent by the main control unit and stop the voltage conversion operation according to the emergency stop command.

[0013] Furthermore, in the charging pile emergency stop button control system described in the present invention, it also includes a charging gun, which is connected to the main control unit. The charging gun is used to receive the emergency stop command sent by the main control unit and perform an unlocking operation according to the emergency stop command.

[0014] Furthermore, in the charging pile emergency stop button control system described in the present invention, a temperature sensor is also included, and the temperature sensor is connected to the main control unit, and the temperature sensor is used to monitor the real-time temperature of the target device.

[0015] The beneficial effect of the present invention is that after the emergency stop button of the charging pile is detected to be triggered, the charging pile is subjected to an emergency stop operation. On this basis, a safety self-check is performed on the charging pile based on a plurality of preset safety self-check items to obtain the safety self-check result of the charging pile, and the safety self-check result of the charging pile is used to determine whether there is a charging fault. If there is no charging fault, an automatic reset instruction is issued to the control rotating device so that the control rotating device automatically resets the emergency stop button. If there is a charging fault, the charging pile will not automatically reset the emergency stop button at this time, and will be manually reset by the corresponding operation and maintenance personnel after repairing the charging fault. In summary, after the self-locking emergency stop button is pressed, if there is no charging fault, the emergency stop button is automatically reset by the control rotating device, and there is no need for the operation and maintenance personnel to manually reset it. On the one hand, while ensuring the safe charging of the charging pile, the manual input of the operation and maintenance personnel is reduced. On the other hand, it can avoid the charging pile from displaying a red light fault due to the emergency stop button being pressed and not being restored in time, so that the user mistakenly believes that the charging pile is faulty and cannot be charged, resulting in a serious waste of resources, thereby improving the service quality of the self-service electric vehicle charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A flowchart schematically shows a step of an emergency stop button control method for a charging pile according to the present invention in one embodiment; Figure 2 The schematic diagram of the structure of the charging pile emergency stop button control system according to the present invention in one embodiment is shown schematically. DETAILED DESCRIPTION

[0017] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0018] With the rapid development and popularization of new energy vehicles, the number of charging stations is increasing. Since electric vehicle charging stations are usually self-service operations, charging vehicles need to press the emergency stop button when encountering emergencies. In some special cases, users may deliberately press the emergency stop button. However, since most users do not have electrical expertise, they usually forget to restore the emergency stop button after it is pressed. After pressing the emergency stop button, the charging station background will report that the charging pile emergency stop button has failed. After the operation and maintenance personnel find out, they will go to the corresponding charging pile for manual reset. However, some charging stations do not have a monitoring background. Only when the next user uses it can the fault be discovered, and only after the next user reports the repair will the operation and maintenance personnel go to the site for manual recovery. If the user does not report the repair, only the operation and maintenance personnel can find the fault and handle it by going to the site for inspection. It should be noted that emergency stop buttons can be divided into two types: self-locking and self-resetting. Among them: (1) Self-locking emergency stop button: When the self-locking emergency stop button is pressed, the machine stops immediately and the button is in the pressed state. Someone needs to take measures to reset it before the equipment can be put into operation again. This design is suitable for situations where the emergency state needs to be maintained for a long time to ensure the absolute safety of the equipment and operators. (2) Self-resetting emergency stop button: The self-resetting emergency stop button allows the button to be automatically reset within a period of time (usually short enough) after being pressed, so that the equipment can be restarted in a short time. This type of button is suitable for situations where the emergency state does not need to be maintained for a long time, or where there are strict requirements on the response time of the emergency. In summary, the difference between the self-locking and self-resetting of emergency stop buttons is mainly reflected in the following aspects: (1) Operation process: After the self-locking emergency stop button is pressed, it needs to be reset manually, which may involve turning or pressing a certain component. The self-resetting emergency stop button can be directly pressed and can be automatically reset quickly without additional operation steps. (2) Safety features: Due to the design characteristics of the self-locking emergency stop button, the equipment shutdown time is relatively long. During operation, it can ensure the safety and stability of the equipment. It is very suitable for equipment that does not want to restart accidentally and needs to be shut down continuously to protect the safety of operators. Although the self-resetting emergency stop button provides a quick restart option, if the user tries to restart the equipment immediately without realizing the problem, it may cause safety hazards.

[0019] It should be noted that the emergency stop button of the present invention is the self-locking emergency stop button mentioned above. For equipment with high safety requirements and where operators are not expected to operate by mistake, the self-locking emergency stop button is a better choice. However, after the self-locking emergency stop button is pressed, it needs to be manually reset each time, resulting in excessive labor input by the operation and maintenance personnel, seriously affecting the service quality of the charging station and causing serious waste of resources.

[0020] To this end, the present invention provides an emergency stop button control method for a charging pile. When the user deliberately presses the emergency stop button and forgets to manually restore it, the charging pile can simulate the manual reset of the emergency stop button, improve the service quality of the charging station, and avoid waste of resources. Specifically, a rotating device is installed next to the emergency stop button of the charging pile to simulate the manual rotation of the emergency stop button. After the emergency stop button of the charging pile is pressed, the charging pile can control the rotating device to automatically rotate and reset the emergency stop button according to the actual safety situation of use. When the user deliberately presses the emergency stop button to end charging and forgets to manually reset it, if the charging pile does not have other faults that cannot be charged, the charging pile controls the rotating device to automatically reset the emergency stop button, and manual reset is not required. When the emergency stop button is pressed and the charging pile has other faults that cannot be charged, the charging pile will not automatically reset the emergency stop button. The emergency stop button can only be automatically reset by manual reset or when the charging pile resumes normal operation, as follows: Please refer to Figure 1 as well as Figure 2 The present invention relates to a method for controlling an emergency stop button for a charging pile, which comprises the following steps: S1: After detecting that the emergency stop button is triggered, the charging pile performs an emergency stop operation; S2: Preset multiple safety self-check items, and perform a safety self-check on the charging pile based on the multiple safety self-check items to obtain a safety self-check result of the charging pile; S3: Based on the safety self-inspection result of the charging pile, determine whether there is a charging fault; wherein, when it is determined that there is no charging fault, send an automatic reset instruction to the control rotating device so that the control rotating device automatically resets the emergency stop button.

[0021] In actual applications, a control rotating device is installed next to the emergency stop button of the charging pile to simulate manual rotation of the emergency stop button. When the emergency stop button of the charging pile is pressed, the charging pile can automatically rotate the emergency stop button according to the actual safety situation of use to reset the emergency stop button. Specifically: when the emergency stop button of the charging pile is pressed, if there is no charging fault at this time, the control rotating device of the charging pile can automatically reset the emergency stop button without manual reset by personnel. When the charging pile has other faults that cannot charge, the charging pile will not automatically reset the emergency stop button. The emergency stop button can only be automatically reset by manual reset or when the charging pile resumes normal operation.

[0022] As can be seen from the above description, the beneficial effect of the present invention is that after the emergency stop button of the charging pile is triggered (such as being pressed), the charging pile is subjected to an emergency stop operation. On this basis, a safety self-check is performed on the charging pile based on a plurality of preset safety self-check items to obtain the safety self-check result of the charging pile, and based on the safety self-check result of the charging pile, it is determined whether there is a charging fault. If there is no charging fault, an automatic reset instruction is issued to the control rotating device so that the control rotating device automatically resets the emergency stop button. If there is a charging fault, the charging pile will not automatically reset the emergency stop button at this time, and can only be manually reset by the corresponding operation and maintenance personnel after repairing the charging fault. In summary, after the self-locking emergency stop button is pressed, if there is no charging fault, the emergency stop button is automatically reset by the control rotating device, and there is no need for the operation and maintenance personnel to manually reset it. On the one hand, while ensuring the safe charging of the charging pile, the manual input of the operation and maintenance personnel is reduced. On the other hand, it can avoid the charging pile from displaying a red light fault due to the emergency stop button being pressed and not being restored in time, so that the user mistakenly believes that the charging pile is faulty and cannot be charged, resulting in a serious waste of resources, and improving the service quality of self-service electric vehicle charging piles.

[0023] It should be noted that the premise of whether the present invention controls the rotation of the motor of the rotating device to automatically reset the emergency stop button is that the emergency stop button must be in a triggered (such as pressed) state. Therefore, in practical applications, it is possible to detect whether the emergency stop button is triggered in a corresponding manner, such as: (1) In some cases (such as charging), since the user may have orders during the charging process, the order shutdown reason of the order can be detected to determine whether the order shutdown reason includes the fault of the user taking an emergency stop shot (i.e. pressing the emergency stop button). According to the order shutdown reason, it is possible to quickly confirm whether the emergency stop button is in a pressed state. (2) In the non-charging state, it is possible to detect whether the emergency stop button is pressed by performing a corresponding safety self-check operation. In the non-charging state, the emergency stop button may be pressed, such as, in the non-charging state, the user takes an emergency stop shot or the charging pile has entered the end charging process and the user takes an emergency stop shot. It should be noted that the charging pile can always perform the corresponding safety self-check operation in real time or periodically perform the corresponding safety self-check operation at a preset interval. In addition, the order shutdown reason is generated before the charging pile enters the end of charging. The charging pile ends charging due to the order shutdown reason. The order shutdown reason is to record the shutdown reason of this order. As long as charging starts, the charging pile will record the stop reason when charging ends. It should be noted that the order shutdown reason includes many situations, such as: (1) normal shutdown (such as: the charging pile actively shuts down due to insufficient user balance, the user clicks on the APP to end charging, the user-specified time limit is reached, and the electric vehicle is fully charged); (2) abnormal shutdown of the pile side device (such as abnormal high-voltage relay K1K2 of the charging pile, water flooding alarm of the charging pile, abnormal electronic lock of the charging pile, tilt of the pile bottom / door, positive / negative fuse blown alarm, etc.). (3) abnormal shutdown on the vehicle side (such as: the electric vehicle reports the vehicle internal high-voltage relay alarm, the electric vehicle reports the insulation alarm, the electric vehicle reports the charging connector alarm, the electric vehicle reports the battery pack temperature over-high alarm, etc.). (4) Shutdown due to DCDC module failure (such as: module pre-charging timeout, module output short circuit, output side overvoltage, parallel relay adhesion abnormality, fan failure alarm, etc.); (5) Shutdown due to abnormal communication (such as: abnormal communication with the meter, abnormal communication with the insulation module, abnormal communication with the platform server, abnormal communication with the DCDC module, abnormal communication with the vehicle, etc.); (6) Shutdown due to overtemperature / overvoltage / overcurrent on the charging pile side (such as: actual current output is greater than the required current, the internal temperature of the charging pile is overheated, the vehicle battery voltage is not detected during the preparation stage, and the DC external voltage is abnormal (greater than the maximum voltage of the pile or the minimum voltage of the pile)). (7) The user presses the emergency stop button: The user may press the emergency stop button because the charging pile and other related equipment fail to charge temporarily, or the user may press the emergency stop button intentionally, such as because it takes some time to end charging and to ensure the safety of the user, it is necessary to determine whether the current value is below 5A, the discharge circuit is activated, etc., so some users are anxious and press the emergency stop button directly without ending charging.In some cases, for example, the user may not be clear about the operation process of the emergency stop button, or may directly press the emergency stop button out of curiosity. It should be noted that the order shutdown reasons include one or more of the above. The present invention is performed when the emergency stop button is pressed. If the emergency stop button is not pressed, the charging pile will not control the rotating device regardless of normal shutdown or abnormal shutdown.

[0024] Furthermore, in the emergency stop button control method described in the present invention, in step S1, the emergency stop operation includes the following steps: stopping the charging operation of the electric vehicle; adjusting the DCDC power module to the off state and disconnecting the relay; unlocking the charging gun.

[0025] In actual applications, after detecting that the emergency stop button is pressed, the corresponding emergency stop operation can be performed according to the actual situation. For example: stop the charging operation of the charging pile on the electric vehicle; adjust the DCDC power module in the charging pile to the off state, and disconnect the relay in the charging pile; unlock the charging gun in the charging pile. That is, after detecting that the emergency stop button is pressed, the charging of the electric vehicle can be stopped immediately, the DCDC power module output can be turned off, the relay K1K2 can be disconnected, and the charging gun can be unlocked to wait for the user to pull out the gun. After the user pulls out the gun, the charging ends. From the above description, it can be seen that by performing the corresponding emergency stop operation, the safety of users and equipment such as charging piles is guaranteed, and potential safety risks and equipment damage are reduced.

[0026] Furthermore, in the emergency stop button control method of the present invention, in step S2, obtaining the charging pile safety self-test result includes: (1) performing a safety self-check on the charging pile based on the plurality of safety self-check items to obtain indicator data of the charging pile in each safety self-check item, and determining whether the indicator data is normal; (2) When all the indicator data are normal, it is determined that the charging pile self-test is normal; (3) When at least one of the indicator data is abnormal, the safety self-check item corresponding to the abnormal indicator data is repaired; if all the safety self-check items corresponding to the abnormal indicator data are successfully repaired, it is determined that the charging pile self-check is normal; if at least one of the safety self-check items corresponding to the abnormal indicator data is not successfully repaired, it is determined that the charging pile self-check is abnormal.

[0027] The safety self-check of the charging pile refers to a series of self-check and test processes for the charging pile, which aims to ensure that the charging pile meets safety standards during operation and can provide charging services for electric vehicles safely and reliably. The safety self-check of the charging pile may include inspections and tests of multiple aspects (i.e., safety self-check items) to ensure that the hardware, software, electrical system, safety devices, and communication with other systems of the charging pile are in good condition. The safety self-check items may be selected according to actual conditions and are not limited here. In an optional embodiment, there may be multiple safety self-check items, specifically: (1) Detection of relays and input safety monitoring points: In the charging pile system, the input safety monitoring points refer to a series of key points for monitoring the external environment and internal state of the charging pile, which together constitute the safety protection network of the charging pile. These monitoring points use sensors, switches or other detection devices to sense and evaluate the operating status of the charging pile in real time to ensure the safety of the charging process. Specifically, the input safety monitoring points include but are not limited to the following aspects: high-voltage relay K1 / K2, auxiliary power relay K3 / K4, emergency stop button, access control system, flood monitoring, lightning arrester, fuse, and gun holder, etc. In practical applications, safety self-checks are performed on relays, emergency stop buttons, access control systems, flood monitoring, lightning arresters, fuses, and gun mounts to obtain corresponding indicator data (such as operating status and whether it can operate normally). For example, taking a fuse as an example, if in some cases (such as excessive current in the charging pile circuit), the fuse status is blown, then when a safety self-check is performed based on the fuse status, it can be determined that the indicator data of the charging pile in this safety self-check item (i.e., fuse status) is abnormal. If the fuse status is not blown, the indicator data of the charging pile in this safety self-check item (i.e., fuse status) is normal. (2) Temperature monitoring (such as the internal ambient temperature of the charging pile, fuse temperature, and gun temperature). Taking the internal ambient temperature of the charging pile as an example, if the internal ambient temperature of the charging pile is not within the preset temperature range, the indicator data of the charging pile in this safety self-check item (i.e., the internal ambient temperature of the charging pile) is abnormal. If the internal ambient temperature of the charging pile is within the preset temperature range, the indicator data of the charging pile in this safety self-check item (i.e., the internal ambient temperature of the charging pile) is normal. (3) Monitoring of memory heap changes. By monitoring the changes in the memory heap, the trend and peak value of memory usage during program execution can be discovered. By reasonably allocating and recycling memory resources, system instability or service interruption caused by memory problems can be avoided. Ensure that the software runs efficiently and stably. (4) Online status monitoring of each module (such as electric meter, DCDC module, platform server, water chiller), that is, judging whether each module is online. Taking the electric meter as an example, the safety self-check item (that is, the online status of the electric meter) is tested. If the electric meter is online, the indicator data of the charging pile in this safety self-check item (that is, the online status of the electric meter) is normal. If the electric meter is not online, the indicator data of the charging pile in this safety self-check item is abnormal.

[0028] In addition, it should be noted that some safety self-check items that can be controlled by the charging pile itself and receive corresponding confirmation responses will perform fault recovery. In actual application, after the charging pile is subjected to safety self-check based on the safety self-check items, if some safety self-check items are detected to be abnormal, that is, the indicator data of some safety self-check items are abnormal, the charging pile will perform fault recovery on these abnormal safety self-check items. For example: (1) If the safety self-check item is a communication abnormal shutdown or a communication abnormality occurs: When the abnormal safety self-check item is an abnormal communication between the charging pile and the external platform server, the charging pile disconnects the current connection operation and re-establishes the connection with the external platform server until it successfully connects to the external platform server. In the case of a successful connection, the abnormal safety self-check item is successfully repaired. It should be noted that when the number of attempts to reconnect the charging pile and the external platform server reaches a preset threshold, the operation of attempting to establish a connection with the external server will be abandoned, and it will be determined that the abnormal safety self-check item has not been successfully repaired. When the safety self-check item is a failure to communicate between the charging pile and the DCDC module, the charging pile will continue to send heartbeat packets to the DCDC module until it receives the DCDC module data packet before recovery. (2) If the electronic lock fails to unlock after charging, the charging pile will periodically force unlocking. (3) If the relay is abnormal, the relay should be disconnected after charging, but it may be stuck or still in the closed state. The charging pile will control the relay to disconnect. If the relay can be disconnected, try to close and disconnect it to see if it is normal. If it is normal, the fault will be restored.

[0029] From the above description, it can be seen that based on multiple safety self-check items, the charging pile is subjected to a safety self-check and corresponding fault repair is performed to obtain the result of the charging pile safety self-check, that is, whether the charging pile self-check is normal / self-check is abnormal, so that it can be correctly and effectively judged whether the charging pile has a charging fault in the future.

[0030] Furthermore, in the emergency stop button control method of the present invention, in step S3, the following steps are included: When the self-check of the charging pile is normal, there is no charging fault in the charging pile; when the self-check of the charging pile is abnormal, there is a charging fault in the charging pile.

[0031] As mentioned above, there are two results of the charging pile safety self-test, namely, the charging pile self-test is normal and the charging pile self-test is abnormal. In actual application, the safety self-test results will be analyzed to determine whether to automatically reset the emergency stop button for the motor that controls the rotating device. When the charging pile self-test is normal, there is no charging fault in the charging pile at this time, and it will not affect the next charging, so the charging pile can automatically reset the emergency stop button. If the charging pile self-test is abnormal, for example, if the charging pile reports a water immersion fault (water enters the charging pile), a door control fault (the charging pile door is opened), a lightning protection fault, an anti-collision fault, a water cooling machine leakage, etc., then there is a charging fault in the charging pile. At this time, the charging pile will not control the rotating device, because even if the emergency stop button is automatically reset, the charging pile cannot be charged. In this case, the charging pile will control the rotating device to automatically reset the emergency stop button only after the operation and maintenance personnel repair the corresponding charging fault of the charging pile.

[0032] From the above description, it can be seen that based on the safety self-inspection results of the charging pile, it is judged whether there is a charging fault to control whether the rotating device automatically resets the emergency stop button, which can reduce the manual input of operation and maintenance personnel, improve the service quality of the charging station, and avoid waste of resources.

[0033] Correspondingly, another object of the present invention is to provide a charging pile emergency stop button control system, which can effectively implement the above-mentioned emergency stop button control method of the present invention, and the charging pile emergency stop button control system includes: a main control unit, a rotation control device and an emergency stop button, the main control unit is connected to the rotation control device and the emergency stop button respectively, and the rotation control device is connected to the emergency stop button, wherein the main control unit is used to determine whether there is a charging fault in the charging pile, and when there is no charging fault in the charging pile, an automatic reset instruction is sent to the control rotation device to make the control rotation device automatically reset the emergency stop button.

[0034] It can be seen from the above description that in the above-mentioned charging pile emergency stop button control system, the main control unit (i.e., the charging pile main control board) determines whether the charging pile has a fault based on the corresponding charging pile safety self-inspection result. When there is no charging fault in the charging pile, the main control unit sends an automatic reset command to the control rotating device to make the control rotating device automatically reset the emergency stop button, thereby reducing the manual input of operation and maintenance personnel, improving the service quality of the charging station, and avoiding waste of resources.

[0035] Furthermore, in the charging pile emergency stop button control system described in the present invention, it also includes a DCDC charging module, which is connected to the main control unit. The DCDC charging module is used to receive the emergency stop command sent by the main control unit and stop the voltage conversion operation according to the emergency stop command.

[0036] Furthermore, in the charging pile emergency stop button control system described in the present invention, it also includes a charging gun, which is connected to the main control unit. The charging gun is used to receive the emergency stop command sent by the main control unit and perform an unlocking operation according to the emergency stop command.

[0037] Furthermore, in the charging pile emergency stop button control system of the present invention, a temperature sensor is also included, the temperature sensor is connected to the main control unit, and the temperature sensor is used to monitor the real-time temperature of the target device. In practical applications, the temperature sensor can be used to monitor the real-time temperature of related devices in the charging pile, such as the internal ambient temperature of the charging pile and the fuse temperature.

[0038] In the charging pile emergency stop button control system of the present invention, if Figure 2 As shown, it may include multiple device modules, such as a main control unit (i.e., a charging pile main control board), a rotation control device, an emergency stop button, a DCDC charging module, a platform server, a charging gun, and other equipment modules (such as an electric meter, an insulation module, a relay, a light strip, an access control, a lightning arrester, a fan, a temperature sensor, a high-precision voltage and current acquisition module), etc. Among them, the charging pile main control board is connected to the rotation control device, the emergency stop button, the DCDC charging module, the platform server, the charging gun, and other equipment modules. In addition, the main control unit can also be used for the management and control of the corresponding charging system of the charging pile.

[0039] It should be noted that the rotating device can be configured according to actual conditions, and the rotating device is mainly composed of a motor, a rotating shaft, and a clamp.

[0040] In summary, the emergency stop button control method and system for a charging pile provided by the present invention: (1) avoids the situation where the charging pile displays a red light fault due to the emergency stop button being pressed but not restored in time, causing the user to mistakenly believe that the charging pile is faulty and cannot be charged, resulting in a serious waste of resources, thereby improving the service quality of self-service electric vehicle charging stations. (2) While ensuring the safe charging of the charging pile, it reduces the manual input of operation and maintenance personnel, and can also reduce the on-site inspection work of operation and maintenance personnel, making the user's electric vehicle charging experience more comfortable and convenient. (3) After the self-locking emergency stop button of the charging pile is pressed, it needs to be manually reset each time. If the user deliberately presses the emergency stop button and forgets to manually restore it, the charging pile can simulate the manual reset of the emergency stop button, thereby improving the service quality of the charging station and avoiding waste of resources.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for controlling an emergency stop button of a charging pile, characterized in that: The following steps are involved: S1: After detecting that the emergency stop button is triggered, the charging pile performs an emergency stop operation; S2: Preset multiple safety self-check items, and perform a safety self-check on the charging pile based on the multiple safety self-check items to obtain a safety self-check result of the charging pile; S3: Based on the safety self-inspection result of the charging pile, determine whether there is a charging fault; wherein, when it is determined that there is no charging fault, send an automatic reset instruction to the control rotating device so that the control rotating device automatically resets the emergency stop button.

2. The emergency stop button control method according to claim 1, characterized in that: In step S1, the emergency stop operation includes the following steps: Stop charging electric vehicles; Adjust the DCDC power module to the off state and disconnect the relay; Unlock the charging gun.

3. The emergency stop button control method according to claim 1, characterized in that: In step S2, the following steps are included: Based on the plurality of safety self-check items, the charging pile is subjected to a safety self-check to obtain indicator data of the charging pile in each safety self-check item, and to determine whether the indicator data is normal; when all the indicator data are normal, it is determined that the charging pile self-check is normal; when at least one of the indicator data is abnormal, the safety self-check item corresponding to the abnormal indicator data is repaired; When all the safety self-check items corresponding to the abnormal indicator data are successfully repaired, the charging pile self-check is determined to be normal; when there is at least one safety self-check item corresponding to the abnormal indicator data that has not been successfully repaired, the charging pile self-check is determined to be abnormal.

4. The emergency stop button control method according to claim 3, characterized in that: The safety self-check items include: the internal ambient temperature of the charger, the fuse temperature, the charging gun temperature, and the communication status between the charging pile and the external platform server.

5. The emergency stop button control method according to claim 4, characterized in that: In step S2, the abnormal safety self-check item is repaired, including: when the abnormal safety self-check item is abnormal communication between the charging pile and the external platform server, the charging pile disconnects the current connection operation and re-establishes the connection with the external platform server until it is successfully connected to the external platform server.

6. The emergency stop button control method according to claim 3, characterized in that: In step S3, the following steps are included: When the self-check of the charging pile is normal, there is no charging fault in the charging pile; when the self-check of the charging pile is abnormal, there is a charging fault in the charging pile.

7. A charging pile emergency stop button control system, which is applied to the emergency stop button control method according to any one of claims 1 to 6, characterized in that: include: A main control unit, a rotating control device and an emergency stop button, wherein the main control unit is connected to the rotating control device and the emergency stop button respectively, and the rotating control device is connected to the emergency stop button, wherein the main control unit is used to determine whether there is a charging fault in the charging pile, and when there is no charging fault in the charging pile, an automatic reset instruction is sent to the control rotating device to make the control rotating device automatically reset the emergency stop button.

8. The charging pile emergency stop button control system according to claim 7, characterized in that: It also includes a DCDC charging module, which is connected to the main control unit and is used to receive an emergency stop instruction sent by the main control unit and stop the voltage conversion operation according to the emergency stop instruction.

9. The charging pile emergency stop button control system according to claim 7, characterized in that: It also includes a charging gun, which is connected to the main control unit and is used to receive an emergency stop command sent by the main control unit and perform an unlocking operation according to the emergency stop command.

10. The charging pile emergency stop button control system according to claim 7, characterized in that: It also includes a temperature sensor, which is connected to the main control unit and is used to monitor the real-time temperature of the target device.

Images