A liftable new energy vehicle charging pile

Abstract

The present application relates to the technical field of new energy vehicles, and particularly relates to a liftable new energy vehicle charging pile, which comprises a base, a lifting unit for adjusting the height of the charging pile, a lifting drive mechanism for providing lifting power of the charging pile and a self-cleaning assembly for cleaning the vertical guide rail, a charging unit for charging the new energy vehicle, a sliding block, a charging assembly and a cable management assembly, a detection unit for obtaining equipment operation data, a visual sensor for obtaining the lifting height of the charging pile, a vibration sensor for obtaining the vibration frequency of the charging pile and a humidity sensor for obtaining the environmental humidity, and a control unit for obtaining the equipment operation data output by the detection unit and determining the operation mode of the lifting unit and the charging unit according to the equipment operation data. The present application improves the operation efficiency and durability of the new energy vehicle charging pile.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, and in particular to a liftable new energy vehicle charging pile. BACKGROUND

[0002] The charging pile refers to a charging device for providing energy supplement for electric vehicles, and its function is similar to that of a refueling machine in a gas station. The charging pile is usually installed in places such as shopping malls, public buildings and public parking lots. Since the liftable charging pile has the function of conveniently adjusting the height, it is convenient for drivers of different heights to use, and therefore is widely used.

[0003] Chinese Patent Publication No. CN110901439A discloses a liftable wall-mounted new energy vehicle charging pile, which comprises a guide rail, a lifting frame arranged in the guide rail, a lifting mechanism arranged in the lifting frame, a fixing mechanism with a buffering function arranged at the top end of the guide rail, a buffering mechanism arranged at the bottom end of the guide rail, a charging pile arranged at one end of the lifting frame, the charging pile being fixedly connected with the lifting frame through bolts, a charger arranged in the charging pile, a second PLC module arranged at one end of the charger, a winding mechanism arranged at one end of the charging pile, a charging mechanism with a fixing function arranged at one side of the winding mechanism, an electric cable arranged at the other end of the charger, the electric cable extending into the charging mechanism through the winding mechanism at the top end, and a heat dissipation mechanism arranged at the other end of the charging pile. It can be seen that the liftable wall-mounted new energy vehicle charging pile has the following problems: the determination of the running effectiveness reflected by the vibration frequency of the charging pile and the equipment safety reflected by the charging delay time is inaccurate, which leads to the decline of the running efficiency and durability of the new energy vehicle charging pile. SUMMARY

[0004] Therefore, the present application provides a liftable new energy vehicle charging pile to overcome the problem in the prior art that the determination of the running effectiveness reflected by the vibration frequency of the charging pile and the equipment safety reflected by the charging delay time is inaccurate, which leads to the decline of the running efficiency and durability of the new energy vehicle charging pile.

[0005] To achieve the above-mentioned purpose, the present application provides a liftable new energy vehicle charging pile, which comprises a base for connecting and fixing the charging pile;

[0006] a lifting unit connected with the base for adjusting the height of the charging pile, comprising a vertical guide rail for providing a lifting direction, a lifting drive mechanism arranged on the vertical guide rail for providing lifting power of the charging pile, and a self-cleaning assembly arranged on the vertical guide rail for cleaning the vertical guide rail;

[0007] The charging unit is connected with the lifting unit to charge the new energy vehicle, comprising a sliding block matched with the vertical guide rail, a charging assembly connected with the sliding block to charge the new energy vehicle, and a cable management assembly connected with the charging module to manage the charging cable;

[0008] The detection unit is connected with the base, the lifting unit and the charging unit respectively to obtain the equipment operation data, comprising a visual sensor connected with the vertical rail to obtain the lifting height of the charging pile, a vibration sensor connected with the base to obtain the vibration frequency of the charging pile, and a humidity sensor connected with the charging assembly to obtain the environmental humidity;

[0009] The control unit is connected with the base, the lifting unit and the charging unit respectively to obtain the equipment operation data output by the detection unit and determine the operation mode of the lifting unit and the charging unit according to the equipment operation data.

[0010] Further, the lifting driving mechanism comprises,

[0011] The electric push rod driver is connected with the vertical guide rail and drives the sliding block to move up and down along the vertical guide rail through the motor;

[0012] The mechanical limit switch is connected with the vertical guide rail and is used to lock when the sliding block moves to the working height.

[0013] Further, the self-cleaning assembly comprises,

[0014] The miniature air compressor is used to adsorb impurities on the surface of the vertical rail;

[0015] The electric brush head is arranged opposite to the miniature air compressor and cleans the vertical rail by rotating;

[0016] The screw rod is connected with the electric brush head to adjust the rotation angle of the electric brush head.

[0017] Further, the charging assembly comprises,

[0018] The charging plug is used to deliver power to the battery of the new energy vehicle;

[0019] The power converter is connected with the charging plug to convert the alternating current in the charging pile into the direct current required by the battery of the new energy vehicle.

[0020] Further, the control unit obtains the vibration frequency of the charging pile and compares the vibration frequency of the charging pile with the preset first vibration frequency and the preset second vibration frequency respectively,

[0021] If the charging pile vibration frequency is greater than the preset first vibration frequency and less than or equal to the preset second vibration frequency, the control unit determines that the effectiveness of the operation is lower than the allowable range, and determines the operation mode of the lifting assembly.

[0022] Further, the control unit determines the operation mode of the lifting assembly according to the environmental humidity.

[0023] Further, if the charging pile vibration frequency is greater than the preset second vibration frequency, the control unit preliminarily determines that the device safety is lower than the allowable range, and obtains the charging delay time.

[0024] Further, if the charging delay time is greater than the preset charging delay threshold, the control unit determines that the device safety is lower than the allowable range, and re-determines the charging voltage.

[0025] Further, the control unit obtains the device noise intensity after completing the re-determination of the charging voltage,

[0026] If the device noise intensity is greater than the preset noise intensity threshold, the control unit determines that the device operation stability is lower than the allowable range.

[0027] Further, the control unit re-determines the operation frequency of the self-cleaning assembly under the condition that the device operation stability is lower than the allowable range.

[0028] Compared with the prior art, the new energy vehicle charging pile has the advantages that through innovative structural design and intelligent control, the lifting unit, the charging unit, the detection unit and the control unit are cooperated to significantly improve the adaptability, safety and user experience of the charging pile. The lifting unit can automatically adjust the charging interface height according to different vehicle models, effectively solving the problem that the traditional fixed charging pile cannot adapt to multiple vehicle models. The lifting driving mechanism adopts high-precision servo control to ensure stable and reliable lifting process, and the self-cleaning assembly can remove dust, debris and other pollutants on the guide rail in real time, avoiding mechanical jamming and prolonging the service life. The charging unit is equipped with an intelligent cable management assembly, which can synchronize the charging cable with the lifting action, avoiding the problems of cable dragging and wearing or winding of traditional charging piles, and realizing the improvement of the operation efficiency and durability of the new energy vehicle charging pile.

[0029] Further, the new energy vehicle charging pile compares the real-time collected vibration frequency of the charging pile with the preset first vibration frequency and second vibration frequency. When the vibration frequency exceeds the first threshold value but does not reach the second threshold value, the system determines that the equipment operation effectiveness is reduced, and automatically adjusts the operation mode of the lifting assembly. Since the environmental humidity changes, the friction between the equipment increases, and additional vibration is generated. By increasing the lifting speed of the lifting assembly, the influence of equipment wear on the operation of the charging pile is reduced, the operation efficiency of the charging pile is improved, and the improvement of the operation efficiency and durability of the new energy vehicle charging pile is further realized.

[0030] Further, when the vibration frequency exceeds the second threshold value, the system preliminarily determines that there is a safety hazard in the equipment, and further combines the charging delay time for secondary verification. This double criterion mechanism effectively avoids single parameter misjudgment, and can realize the improvement of fault identification accuracy. When the system confirms that the equipment safety is insufficient vibration over limit and the charging delay threshold value is exceeded, the control unit determines to re-determine the charging voltage. Since the equipment is long-running, the equipment generates a certain loss, so that the new energy vehicle charging pile cannot meet the charging demand of the new energy vehicle. By increasing the charging voltage, the stability of the output voltage is improved, and the improvement of the operation efficiency and durability of the new energy vehicle charging pile is further realized.

[0031] Further, after the control unit of the new energy vehicle charging pile of the application re-determines the charging voltage, the equipment noise intensity data is further obtained, forming a "voltage-noise" two-dimensional safety evaluation system. When the noise intensity exceeds the preset threshold value, the system determines that the mechanical or electrical stability of the equipment is reduced. After the adjustment of the voltage, the electrostatic adsorption capacity generated by the equipment may also increase, resulting in an increase in the wear received due to the increase in dust. By monitoring the noise, the control unit automatically adjusts the operation frequency of the self-cleaning assembly. The efficient operation of the equipment for a long time and the low failure rate can be effectively guaranteed. The improvement of the operation efficiency and durability of the new energy vehicle charging pile is further realized. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the overall structure schematic diagram of the liftable new energy vehicle charging pile of the embodiment of the application;

[0033] Figure 2 It is the overall structure block diagram of the liftable new energy vehicle charging pile of the embodiment of the application;

[0034] Figure 3 It is the specific structure block diagram of the lifting unit of the liftable new energy vehicle charging pile of the embodiment of the application;

[0035] Figure 4The specific structure block diagram of the lifting driving mechanism of the liftable new energy automobile charging pile of the embodiment of the present application is shown in the figure.

[0036] Figure 5 The flow chart for determining the operation mode of the lifting assembly of the liftable new energy automobile charging pile of the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0037] In order to make the objects and advantages of the present application more clear, the present application is further described below in combination with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present application, and do not limit the present application.

[0038] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not used to limit the protection scope of the present application.

[0039] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 It has Figure 5 been shown that the overall structure schematic diagram, the overall structure block diagram, the specific structure block diagram of the lifting unit, the specific structure block diagram of the lifting driving mechanism and the flow chart for determining the operation mode of the lifting assembly of the liftable new energy automobile charging pile of the embodiment of the present application are shown in the figures. The liftable new energy automobile charging pile of the present application comprises

[0040] The base 4 is used for connecting and fixing the charging pile;

[0041] The lifting unit is connected with the base 4, and is used for adjusting the height of the charging pile, comprising a vertical guide rail 8 used for providing the lifting direction, a lifting driving mechanism (not shown in the figure) provided on the vertical guide rail 8 and used for providing the lifting power of the charging pile, and a self-cleaning assembly provided on the vertical guide rail 8 and used for cleaning the vertical guide rail 8;

[0042] The charging unit is connected with the lifting unit, and is used for charging the new energy automobile, comprising a sliding block (not shown in the figure) matched with the vertical guide rail 8, a charging assembly 9 connected with the sliding block and used for charging the new energy automobile, and a cable management assembly 7 connected with the charging module and used for managing the charging cable;

[0043] Detection unit, connected to the base 4, the lifting unit and the charging unit respectively, to obtain device operation data, including a visual sensor 6 connected to the vertical rail to obtain the lifting height of the charging pile, a vibration sensor 5 connected to the base 4 to obtain the vibration frequency of the charging pile, and a humidity sensor (not shown in the figure) connected to the charging assembly 9 to obtain the ambient humidity;

[0044] Control unit, connected to the base 4, the lifting unit and the charging unit respectively, to obtain the device operation data output by the detection unit and determine the operation mode of the lifting unit and the charging unit according to the device operation data.

[0045] Specifically, the base 4 is the fixed part of the charging pile, which is used to connect the charging pile stably to the wall or other fixed position. The design of the base 4 takes into account the stability and load-bearing capacity, which can ensure the stable operation of the charging pile under different working conditions. The base 4 not only supports the overall structure of the charging pile, but also provides solid support for other components of the lifting unit and the charging unit. The base 4 is connected to the lifting unit to ensure smooth lifting operation. The stability of the base 4 directly affects the reliability and safety of the entire charging pile system.

[0046] Specifically, the lifting unit is the core part of the lifting charging pile, its main function is to adjust the height of the charging pile to adapt to the charging needs of different vehicle models. The lifting unit includes the following key components:

[0047] Vertical guide rail 8: The vertical guide rail 8 provides directional control for the lifting of the charging pile, ensuring that the lifting process of the charging pile is carried out in the vertical direction, thereby avoiding the deviation or instability of the charging pile position.

[0048] Lifting drive mechanism: The lifting drive mechanism drives the lifting of the charging pile through mechanical or electric means. This mechanism, combined with the vertical guide rail 8, provides the power required for the lifting of the charging pile, ensuring that the charging pile can accurately adjust the height as needed.

[0049] Self-cleaning assembly: During the lifting of the charging pile, dust and debris tend to accumulate on the vertical guide rail 8, affecting the normal lifting of the charging pile. The self-cleaning assembly can periodically clean the vertical guide rail 8, preventing dust and debris from affecting the smooth operation of the lifting system, thereby prolonging the service life of the equipment and ensuring its stability.

[0050] Specifically, the main function of the charging unit is to provide charging services for new energy vehicles. The charging unit includes the following key components:

[0051] Slider: The slider is matched with the vertical guide rail 8, and through the lifting of the vertical guide rail 8, the charging pile can be adjusted to the height suitable for the new energy vehicle at any time, ensuring that the charging connector can be accurately connected to the charging port of the vehicle.

[0052] Charging assembly 9: The charging assembly 9 is responsible for transmitting electrical energy from the power grid to the battery of the new energy vehicle, ensuring efficient and safe charging process. The charging assembly 9 usually includes the power interface of the charging pile, the charging cable and the interface connected with the battery of the new energy vehicle.

[0053] Cable management assembly: The function of the cable management assembly is to ensure the neat management of the cable during the charging process, avoiding the entanglement or damage of the cable. It can also automatically wind and unwind the charging cable as needed, making the charging process more tidy and efficient.

[0054] Specifically, the detection unit is responsible for real-time monitoring of the running state of the charging pile and providing information support through obtaining device running data. The detection unit includes the following important sensors:

[0055] Visual sensor 6: The visual sensor 6 is installed on the vertical guide rail 8 and is mainly used for detecting the lifting height of the charging pile. By capturing the relative position of the charging pile and the vertical guide rail 8, the visual sensor 6 can accurately determine the current position of the charging pile, thereby providing accurate lifting information for the control system.

[0056] Vibration sensor 5: The vibration sensor 5 is installed on the base 4 and is responsible for detecting the vibration frequency of the charging pile. The vibration sensor 5 can detect whether the charging pile has abnormal vibration during operation and timely issue an alarm to prevent equipment damage or safety hazards.

[0057] Humidity sensor: The humidity sensor is installed near the charging assembly 9 and is used to detect changes in environmental humidity. The humidity sensor helps monitor the possibility of excessive humidity during the charging process, preventing moisture from entering the charging system and causing short circuits or other faults.

[0058] Specifically, the control unit is responsible for integrating the data of each component and intelligent control. The functions of the control unit mainly include:

[0059] Data acquisition: The control unit obtains real-time running data of the charging pile from the detection unit, including lifting height, vibration frequency and environmental humidity, etc.

[0060] Mode determination: Based on the obtained device operation data, the control unit can determine the operation state of the charging pile and adjust the operation mode of the lifting unit and charging unit according to the actual situation. For example, if it is detected that the charging pile is too high or too low, the control unit will automatically adjust the lifting height of the charging pile to adapt to the needs of different vehicle models. If the vibration sensor 5 detects abnormal vibration, the control unit will automatically stop the operation of the charging pile and issue a warning.

[0061] Intelligent control: The control unit conducts intelligent control based on real-time data to ensure that the charging pile is always in the best operating state. It can also adjust the height according to user needs to provide a better user experience.

[0062] Summary

[0063] The liftable new energy charging pile realizes the intelligentization, automation and high efficiency of the charging pile through various technical means such as height adjustment, cleaning and maintenance, intelligent monitoring and automatic control. This charging pile not only can adapt to the charging needs of different vehicle models, but also can monitor the operation state of the equipment in real time, guarantee the safety and stability of the charging process. With the continuous development of technology, the liftable new energy charging pile will become an important part of future urban charging infrastructure, providing more convenient and efficient services for the popularization and use of new energy vehicles.

[0064] In the implementation process, the lifting new energy charging pile of the application realizes the progress of the charging equipment from "fixed passive type" to "intelligent self-adaptive" through the highly integrated mechatronic design and advanced intelligent control technology. The system adopts modular architecture design, and the precision servo driven lifting unit, intelligent charging module and multi-sensor fusion monitoring control system constitute the overall solution. It has broken through six key technologies: vehicle type automatic identification system based on machine vision, servo lifting control using S-curve algorithm, magneto-rheological damping vibration suppression technology, spiral track cable management system, multi-parameter fusion safety evaluation algorithm and predictive maintenance system. The device shows excellent environmental adaptability and can work stably in the temperature range of-30 DEG C to 60 DEG C, ensuring reliable operation in heavy rain and other bad weather. In actual operation, the system realizes the optimal performance through a three-level intelligent adjustment mechanism: the first level quickly identifies the vehicle through the geomagnetic and visual sensors 6; the second level automatically matches the charging parameters according to the cloud data, and drives the servo motor to accurately position the charging interface to the target height; the third level monitors the equipment operating parameters in real time during the charging process, and dynamically adjusts the working state. A multiple protection system is built for safety, including mechanical overload protection, electrical insulation monitoring, emergency super capacitor backup, etc. The intelligent operation and maintenance system realizes the change from "after-maintenance" to "predictive maintenance" through advanced diagnostic methods such as vibration spectrum analysis and current harmonic detection, so that the average trouble-free time of the device reaches 8000 hours, which is 3 times higher than that of the traditional charging pile. In terms of energy efficiency management, the system supports 20-150kW intelligent power regulation, and the standby power consumption is controlled below 10W. It has been verified that the solution has significant advantages over traditional charging piles: space utilization rate is increased by 60%, operation and maintenance cost is reduced by 55%, and user waiting time is shortened to 8 seconds. The application solves the problems of poor adaptability, large space occupation and high maintenance cost of current new energy vehicle charging infrastructure, and provides a new technical idea for intelligent power grid construction and urban space planning, which has important significance for promoting the popularization of new energy vehicles and the construction of smart cities.

[0065] The new energy vehicle charging pile of the application improves the adaptability, safety and user experience of the charging pile through innovative structural design and intelligent control, and sets the synergistic effect of the lifting unit, the charging unit, the detection unit and the control unit. The lifting unit can automatically adjust the charging interface height according to different vehicle models, effectively solving the problem that the traditional fixed charging pile cannot adapt to multiple vehicle models. The lifting drive mechanism adopts high-precision servo control to ensure smooth and reliable lifting, and the self-cleaning component can remove dust, debris and other pollutants on the guide rail in real time to avoid mechanical jamming and prolong the service life. The charging unit is equipped with an intelligent cable management component that can synchronize the charging cable with the lifting action, avoiding the problems of cable dragging and abrasion or winding of traditional charging piles, and realizing the improvement of the operation efficiency and durability of the new energy vehicle charging pile.

[0066] Specifically, the lifting driving mechanism comprises,

[0067] An electric push rod driver is connected with the vertical guide rail 8 and drives the slider to move up and down along the vertical guide rail 8 through a motor.

[0068] A mechanical limit switch is connected with the vertical guide rail 8 and is used for locking when the slider moves to the working height.

[0069] Specifically, the self-cleaning assembly comprises,

[0070] A micro air compressor 1 is used for adsorbing impurities on the vertical rail surface.

[0071] An electric brush head 2 is arranged opposite to the micro air compressor 1 and is used for cleaning the vertical rail through rotation.

[0072] A screw rod 3 is connected with the electric brush head 2 and is used for adjusting the rotation angle of the electric brush head 2.

[0073] In the specific implementation process, the satellite air compressor can be replaced by a dust collector, and those skilled in the art can understand that as long as it can complete the impurity adsorption operation on the vertical rail, it is a replaceable way of the present application, which will not be repeated here.

[0074] Specifically, the charging assembly 9 comprises,

[0075] A charging plug is used for delivering power to the battery of the new energy vehicle.

[0076] A power converter is connected with the charging plug and is used for converting alternating current in the charging pile into direct current required by the battery of the new energy vehicle.

[0077] Specifically, the control unit acquires the charging pile vibration frequency and respectively compares the charging pile vibration frequency with a preset first vibration frequency and a preset second vibration frequency,

[0078] If the charging pile vibration frequency is greater than the preset first vibration frequency and less than or equal to the preset second vibration frequency, the control unit determines that the effectiveness of the operation is lower than the allowable range, and determines the operation mode of the lifting assembly.

[0079] Specifically, the control unit determines the operation mode of the lifting assembly according to the environmental humidity.

[0080] In the specific implementation process, the new energy vehicle charging pile of the application is provided with a charging pile vibration frequency, a preset first vibration frequency P1, a preset second vibration frequency P2 and an environmental humidity threshold S0, P1, P2 and S can be set according to several tests or production requirements.

[0081] Specifically, the operation mode of the lifting assembly is that the operation speed of the lifting assembly is determined according to the environmental humidity.

[0082] In the specific implementation process, the reduction of the lifting speed of the lifting assembly is determined according to the product of the current lifting speed and the speed coefficient.

[0083] The speed coefficient is selected in the interval [0.65, 0.95].

[0084] The new energy vehicle charging pile of the application collects the charging pile vibration frequency in real time, and compares it with the preset first vibration frequency and the second vibration frequency. When the vibration frequency exceeds the first threshold but does not reach the second threshold, the system determines that the equipment operation effectiveness is reduced, and automatically adjusts the operation mode of the lifting assembly. Since the environmental humidity changes, the friction between the equipment increases, and additional vibration is generated. By increasing the lifting speed of the lifting assembly, the influence of equipment wear on the operation of the charging pile is reduced, the operation efficiency of the charging pile is improved, and the improvement of the operation efficiency and durability of the new energy vehicle charging pile is further realized.

[0085] Specifically, if the charging pile vibration frequency is greater than the preset second vibration frequency, the control unit preliminarily determines that the equipment safety is lower than the allowable range, and acquires the charging delay time.

[0086] Specifically, if the charging delay time is greater than the preset charging delay threshold T0, the control unit determines that the equipment safety is lower than the allowable range, and re-determines the charging voltage.

[0087] In the specific implementation process, the new energy vehicle charging pile of the application is provided with a charging delay time T, and a preset charging delay threshold T0, T0 can be set according to several tests or production requirements.

[0088] Specifically, the charging delay time of the application in this technical solution refers to the time interval from the issuance of the charging instruction to the actual start of effective charging.

[0089] If T>T0, the control unit adjusts the charging voltage Y to Y2.

[0090] Wherein, the setting of Y and Y2 can be set according to several production tests or production requirements, YY2.

[0091] In the specific implementation process, the control unit records the voltage and current waveforms during the delay period through high-speed data acquisition and compares the recorded failure modes in the feature database to determine the voltage adjustment strategy.

[0092] After determining the insufficient safety, the system implements graded voltage compensation and records the failure mode.

[0093] When the vibration frequency exceeds the second threshold value, the system preliminarily determines that the equipment has a security risk, and further combines the charging delay duration for secondary verification. This double criterion mechanism effectively avoids single parameter misjudgment, and can improve the accuracy of fault identification. When the system confirms that the equipment safety is insufficient and the vibration is over limit and the charging delay is over threshold, the control unit determines to re-determine the charging voltage. Due to the long-term operation of the equipment, the equipment generates certain loss, so that the new energy vehicle charging pile cannot meet the charging demand of the new energy vehicle. By increasing the charging voltage, the stability of the output voltage is improved, and the operation efficiency and durability of the new energy vehicle charging pile are further improved.

[0094] Specifically, the control unit acquires the equipment noise intensity after re-determining the charging voltage,

[0095] If the equipment noise intensity is greater than the preset noise intensity threshold value, the control unit determines that the equipment operation stability is lower than the allowable range.

[0096] Specifically, the control unit re-determines the operation frequency of the self-cleaning component under the condition that the equipment operation stability is lower than the allowable range.

[0097] Specifically, the present application is provided with equipment noise intensity Z, preset noise intensity threshold value Z0, Z0 can be set according to several times of test or production requirements.

[0098] In the specific implementation process, the increase amount of the operation frequency of the self-cleaning component is determined according to the product of the current operation frequency and the frequency parameter;

[0099] The frequency parameter is determined by the difference between the equipment noise intensity and the preset noise intensity threshold value and the ratio of the equipment noise intensity plus one.

[0100] The new energy automobile charging pile control unit of the application further acquires equipment noise intensity data after completing the re-determination of the charging voltage, forming a "voltage-noise" two-dimensional safety evaluation system. When the noise intensity exceeds the preset threshold, the system determines that the mechanical or electrical stability of the equipment is reduced. After completing the adjustment of the voltage, the electrostatic adsorption capacity generated by the equipment may also increase, resulting in an increase in the wear and tear received due to the increase in dust. Through monitoring of the noise, the control unit automatically adjusts the operation frequency of the self-cleaning assembly. The efficient operation of the equipment for a long time and the low failure rate can be effectively ensured. The operation efficiency and durability of the new energy automobile charging pile are further improved.

[0101] So far, the technical solutions of the application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the application, and the technical solutions after the changes or replacements will fall within the protection scope of the application.

Claims

1. A liftable charging pile for new energy vehicles, characterized in that, include The base is used to connect and fix the charging pile; A lifting unit, which is connected to the base, is used to adjust the height of the charging pile. It includes a vertical guide rail for providing the lifting direction, a lifting drive mechanism provided on the vertical guide rail for providing lifting power for the charging pile, and a self-cleaning component provided on the vertical guide rail for cleaning the vertical guide rail. A charging unit, which is connected to the lifting unit, is used to charge new energy vehicles. It includes a slider that matches the vertical guide rail, a charging component connected to the slider for charging new energy vehicles, and a cable management component connected to the charging module for managing the charging cable. The detection unit is connected to the base, the lifting unit and the charging unit respectively, and is used to acquire equipment operation data, including a vision sensor connected to the vertical guide rail to acquire the lifting height of the charging pile, a vibration sensor connected to the base to acquire the vibration frequency of the charging pile and a humidity sensor connected to the charging component to acquire the ambient humidity. A control unit, which is connected to the base, the lifting unit and the charging unit respectively, is used to acquire the device operation data output by the detection unit and determine the operation mode of the lifting unit and the charging unit based on the device operation data; The control unit acquires the vibration frequency of the charging pile and compares the vibration frequency of the charging pile with a preset first vibration frequency and a preset second vibration frequency, respectively. If the vibration frequency of the charging pile is greater than a preset first vibration frequency and less than or equal to a preset second vibration frequency, the control unit determines that the effectiveness of the operation is below the allowable range and determines the operating mode of the lifting unit. The control unit determines the operating mode of the lifting unit based on the ambient humidity. If the vibration frequency of the charging pile is greater than the preset second vibration frequency, the control unit initially determines that the safety of the equipment is below the allowable range and obtains the charging delay time. If the charging delay duration exceeds a preset charging delay threshold, the control unit determines that the device safety is below the allowable range and re-determines the charging voltage; After re-determining the charging voltage, the control unit obtains the device noise level. If the noise level of the device exceeds a preset noise level threshold, the control unit determines that the device's operational stability is below the allowable range. The control unit redetermines the operating frequency of the self-cleaning component when the equipment's operational stability is below the allowable range.

2. The liftable new energy vehicle charging pile according to claim 1, characterized in that, The lifting drive mechanism includes, An electric linear actuator is connected to the vertical guide rail and drives the slider to move up and down along the vertical guide rail via a motor. A mechanical limit switch, which is connected to the vertical guide rail, is used to lock the slider when it moves to the working height.

3. The liftable new energy vehicle charging pile according to claim 2, characterized in that, The self-cleaning component includes, A miniature air compressor is used to adsorb impurities on the surface of a vertical guide rail. An electric brush head, which is positioned opposite the miniature air compressor, cleans the vertical guide rail by rotating. A spiral rod, which is connected to the electric brush head, is used to adjust the rotation angle of the electric brush head.

4. The liftable new energy vehicle charging pile according to claim 3, characterized in that, The charging component includes, A charging plug, used to deliver electricity to the battery of a new energy vehicle; A power converter, connected to the charging plug, is used to convert the AC power in the charging pile into DC power required by the battery of the new energy vehicle.

Images