Charging gun

Abstract

The utility model provides a charging gun, relates to the technical field of charging guns, and solves the problem that a charging gun cannot provide control interaction and is difficult to configure and use in the prior art. The charging gun can provide a fault prompting function for a user through a display screen and a three-color indicating lamp on the charging gun, so that the user can know a fault reason conveniently, and the charging gun can also provide a corresponding touch control function for the user through a touch key, so that the user can perform touch control configuration on the charging gun conveniently. The charging gun can perform corresponding detection, so that a user can know the current charging state of the charging gun and perform corresponding configuration, and the use experience of the user can be improved.

Description

Technical Field

[0001] This application relates to the technical field of charging guns, and particularly to a charging gun. Background Art

[0002] New energy vehicles have gradually become the mainstream of the development of the automotive industry due to their low emissions and high energy efficiency. The promotion of new energy vehicles helps to save energy and reduce greenhouse gas emissions. During the daily operation of new energy vehicles, the charging gun, as an important part of them, charges the new energy vehicles. There are various charging guns on the market now. With the use of charging guns, although the current charging guns can meet the charging requirements, their design drawbacks are becoming more and more prominent.

[0003] During the use of the charging gun, the inventor found that when the current charging gun fails, such as in the case of overvoltage, the user cannot learn the cause of the failure, nor can the user protect the charging gun by setting protection parameters independently to avoid damage to the charging gun caused by overvoltage. Moreover, there is also a problem that the user cannot view the charging situation. That is, the charging gun in the related technology is not user-friendly and cannot effectively provide control interaction for the user to assist the user in better configuring the used charging gun. Utility Model Content

[0004] This application provides a charging gun, which solves the problem that the charging gun in the related technology is difficult to configure due to the lack of control interaction. This solution can detect the charging gun, enabling the user to learn the current charging status of the charging gun and make corresponding configurations, which helps to improve the user experience.

[0005] In a first aspect, this application provides a charging gun, which includes a plug, a control box, a display screen, a three-color indicator light, a touch button, and a charging gun head.

[0006] Among them, the plug is used to connect to an external power supply;

[0007] A first wire hole is provided at the first end of the housing assembly of the control box. A control main board is arranged inside the housing assembly of the control box. The power input interface of the control main board is connected to the plug through a power line, and the power line passes through the first wire hole. A detection module is arranged on the control main board, and the detection module is used to detect the excitation signal and the main board temperature of the charging gun;

[0008] The display screen is connected to the first signal output interface of the control main board. A first transparent window is provided at the installation position of the display screen on the control box. The display screen is arranged in the first transparent window, and the display screen is used to display the detection results of the detection module;

[0009] The three - color indicator lamp is connected to the second signal output interface of the display screen. A second transparent window is provided at the installation position of the three - color indicator lamp on the control box. The three - color indicator lamp is arranged in the second transparent window and is used to output the lamp corresponding to the charging gun state according to the lamp signal output by the control main board;

[0010] The touch button is connected to the control interface on the control main board and is used to output the received touch signal to the control main board;

[0011] The charging gun head is connected to the power output interface of the control main board through a charging cable. A second wire hole is provided at the second end of the housing assembly of the control box, and the charging cable is passed through the second wire hole.

[0012] The charging gun of the solution of this application can display the current charging status through the control box thereon, and can provide a fault prompt function for users through the display screen and the three - color indicator lamp thereon, so that users can learn the cause of the fault. The charging gun can also provide corresponding touch functions for users through the touch button, so that users can perform touch configuration on the charging gun. In this regard, the charging gun can perform corresponding detections to enable users to learn the current charging status of the charging gun and perform corresponding configurations, which helps to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a charging gun provided by an embodiment of this application;

[0014] Figure 2 It is an exploded schematic diagram of a control box provided by an embodiment of this application;

[0015] Figure 3 It is a schematic structural diagram of an over - current detection circuit of a detection module provided by an embodiment of this application;

[0016] Figure 4 It is a schematic structural diagram of an over - voltage detection circuit of a detection module provided by an embodiment of this application.

[0017] REFERENCE MARKS:

[0018] Plug 110, control box 120, display screen 130, three - color indicator lamp 140, touch button 150, charging gun head 160, power cord 170, charging cable 180; motherboard cover 121, silicone part 122, motherboard housing 123; first wire hole 210, second wire hole 220. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further elaborates on the embodiments of the present application in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described herein are merely for explaining the embodiments of the present application, rather than limiting the embodiments of the present application. Additionally, it should be noted that for ease of description, only parts related to the embodiments of the present application rather than all structures are shown in the accompanying drawings. Those skilled in the art should be able to conceive that as long as the technical features do not conflict with each other, any combination of technical features can constitute an alternative implementation.

[0020] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein. Moreover, the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after. In the description of the present application, "multiple" means two or more, and "several" means one or more.

[0021] With the development of new energy vehicles, there are more and more types of charging guns for new energy vehicles, but the disadvantages of their designs are becoming more and more prominent. For example, when a charging gun fails during use, the user cannot obtain the corresponding failure reason, nor can they set corresponding protection parameters to avoid damage to the charging gun. Exemplarily, when the charging gun experiences an overvoltage situation, which leads to a charging gun failure, at this time, the user cannot learn from the charging gun whether the current failure problem is caused by overvoltage or undervoltage, nor can they set the corresponding voltage threshold according to the usage scenario to activate corresponding protection measures to protect the charging gun when the voltage exceeds this threshold. That is, the charging gun in the related art only provides a charging function, and the user cannot perform control interactions with it. The charging gun cannot meet the user's usage requirements, resulting in an unfriendly user experience.

[0022] In response to this, the solution of the present application provides a charging gun that is used to connect to an external power source and a vehicle-mounted battery to charge the vehicle-mounted battery. Figure 1 It is a schematic structural diagram of the charging gun provided in an embodiment of the present application, as Figure 1As shown in the figure, the charging gun includes a plug 110, a control box 120, a display screen 130, a three-color indicator light 140, a touch button 150, and a charging gun head 160. Among them, the plug 110 is used to connect to an external power supply; a first wire hole is provided at the first end of the housing assembly of the control box 120, and a power cord 170 passes through the first wire hole to connect the plug 110 and a control main board provided inside the control box 120; the charging gun head 160 is used to connect to a vehicle-mounted battery. For this purpose, a second wire hole is provided at the second end of the housing assembly of the control box 120, and a charging cable 180 passes through the second wire hole to connect the charging gun head 160 and a control main board provided inside the control box 120.

[0023] The control box 120 serves as a control device on the charging gun. A detection module is provided on the control main board provided inside the housing assembly of the control box 120. The detection module is used to detect the excitation signal and the main board temperature of the charging gun. For example, the detection of the excitation signal such as the voltage and current of the external power supply is achieved through a detection circuit provided on the control main board, and the change in the main board temperature caused by the heat generated during the charging process is detected. Correspondingly, the power input interface on the control main board is connected to the plug 110 through the power cord 170 to detect the connected external power supply, and the power output interface on the control main board is connected to the charging gun head 160 through the charging cable 180.

[0024] The detection results detected by the control main board through the detection module, such as voltage, current, temperature and other information, can be displayed on the display screen 130. A first opening is provided at the installation position of the control box 120 corresponding to the display screen 130, and a first transparent window is embedded at the first opening, and the display screen 130 is provided inside the first transparent window to protect the display screen 130 through the first transparent window. Of course, in an embodiment, the display screen 130 can also be directly embedded in the first opening to display the content of the display screen 130 on the surface of the control box 120. It can be imagined that the display screen 130 is connected to the first signal output interface of the control main board. Correspondingly, the control main board outputs a digital signal through the first signal output interface to display corresponding information on the display screen 130. It should be noted that, in an embodiment, the display screen 130 is an LCD (Liquid Crystal Display) screen.

[0025] Moreover, a second opening is provided at the installation position of the control box 120 corresponding to the three-color indicator light 140, and the second transparent window is embedded at the second opening, while the three-color indicator light 140 is arranged inside the second transparent window. In an embodiment, the three-color indicator light 140 can also be embedded in the second opening to display corresponding lights to the user. Among them, the three-color indicator light 140 is connected to the second signal output interface of the display screen 130, and the three-color indicator light 140 is used to output lights corresponding to the charging gun state according to the received light signals. It can be understood that after the control main board obtains the inspection result through the detection module, the control main board outputs a corresponding signal to the display screen 130 through the first signal output interface thereon, so that the display screen 130 outputs a corresponding light signal to the three-color indicator light 140 through the second signal output interface thereon. It can be imagined that the lights displayed by the three-color indicator light 140 are different when it receives different light signals. In this regard, after the control main board determines the charging gun state according to the detection result, it can control the three-color indicator light 140 to output corresponding lights by outputting different light signals, so as to inform the user of the current charging gun state.

[0026] The touch button 150 is embedded in the control box 120 to facilitate the user to touch the touch button 150 on the surface of the control box 120. For example, in some embodiments, the three-color indicator light 140 and the touch button 150 are also embedded in the second opening, and the three-color indicator light 140 is arranged around the touch button 150. Of course, in some embodiments, the touch button 150 can also be embedded in another opening. Among them, the touch button 150 is connected to the control interface on the control main board, and the touch button 150 is used to output the received touch signal to the control main board. It can be understood that the user can output a corresponding touch signal to the control main board through the touch button 150, so as to realize the interaction with the charging gun. For example, a corresponding menu interface is displayed on the display screen 130, and the user can select menu items on the menu interface through the touch operation of the touch button 150. For example, by long pressing the touch button 150, a certain menu item can be entered, and by short pressing the touch button 150, another menu item can be switched. Further, when entering a menu item for corresponding parameters to be input, such as a menu item for configuring a threshold value, a corresponding input keyboard interface can be displayed on the display interface of the display screen 130, and the user can select corresponding input values through the touch operation of the touch button 150. For example, by long pressing the touch button 150, another number or symbol in the arrangement of the input keyboard interface can be switched, and by quickly double-clicking the touch button 150, a certain number or symbol can be selected. It should be noted that the specific interaction method can be set according to the actual product application requirements, and the interaction methods on the product include but are not limited to the above methods.

[0027] As can be seen from the above solution, the charging gun of this solution is convenient and simple to assemble, has a low cost, and has good sealing performance. The plug, control box, and charging gun head are used in combination, enabling the charging gun to have perfect protection functions, thus better protecting the charging gun, further extending the service life of the charging gun, and allowing users to know the charging status in real time, making it more convenient for users to use in daily life and improving the user experience.

[0028] In some embodiments, the housing assembly of the control box 120 includes a main board cover 121, a silicone part 122, and a main board housing 123. Figure 2 FIG. is an exploded view of the control box provided in an embodiment of the present application. In one embodiment, both the first transparent window and the second transparent window are provided on the main board cover 121. It can be understood that the control box is divided into two parts. The side where the first wire hole 210 is located is taken as the upper half, and the other side where the second wire hole 220 is located is taken as the lower half. Furthermore, the first opening for installing the first transparent window can be provided in the upper half of the control box, that is, also in the upper half of the main board cover 121, while the second opening for installing the second transparent window can be provided in the lower half of the control box, that is, also in the lower half of the main board cover 121.

[0029] A plurality of first screw holes are also provided on the main board cover 121, and the first screw holes extend a preset distance towards the inside of the main board cover 121 to form extension columns. Correspondingly, the silicone part 122 includes a plurality of silicone rings, and the silicone rings correspond one-to-one to the extension columns, that is, the positions and numbers of the silicone rings and the extension columns are the same, so as to easily sleeved the silicone rings on the extension columns to improve the airtightness of the control box. In addition, a plurality of second screw holes are also provided on the main board housing 123, and the second screw holes correspond one-to-one to the first screw holes. Thus, the main board cover 121 and the main board housing 123 can be fixed by screws, that is, the screws pass through the first screw holes and the second screw holes, and there are threads in both the first screw holes and the second screw holes, so that the main board cover 121 and the main board housing 123 are meshed with each other through the screws, the first screw holes, and the second screw holes, and then the main board cover 121 and the main board housing 123 are fixedly connected.

[0030] It can be imagined that the silicone rings of the silicone part 122 are sleeved on the extension columns of the main board cover 121, and the main board cover 121 is aligned with the main board housing 123 according to the first screw holes and the second screw holes, so that the main board cover 121 covers the main board housing 123. Then, through the meshing of the screws with the threads in the first screw holes and the second screw holes, the main board cover 121 and the main board housing 123 are fixedly connected.

[0031] Therefore, the control box achieves a fixed connection through the cooperation among the main board cover, the silicone part, and the main board housing. The silicone part serves as a seal, which can enhance the tightness between the main board cover and the main board housing, is conducive to improving the dust and sand prevention effect of the control box, and helps reduce the risk of failures of the charging gun.

[0032] It should be noted that in some embodiments, a plurality of fixing posts are provided inside the main board housing to fix the control main board at the installation position, that is, to fix the control main board in the cavity formed inside the main board housing, so as to prevent the control main board from shaking significantly during the use of the charging gun and affecting the use. Exemplarily, the fixing posts can be arranged along the edge of the control main board according to the shape of the control main board. For example, if the shape of the control main board is square, correspondingly, at least one fixing post is provided on each of the four bottom edges of the control main board to fix it. Of course, it is also possible that a plurality of fixing holes are reserved on the control main board, and the positions of the fixing holes correspond to those of the fixing posts one by one, and then the control main board can be sleeved on the fixing posts to achieve fixation.

[0033] In some embodiments, the charging gun further includes a communication module, which is connected to the communication interface on the control main board to communicate with the user terminal and implement the signal transceiver function. For example, it receives the configuration parameters sent by the user terminal and sends them to the control main board. The configuration parameters are used to configure the threshold parameters corresponding to the protection functions, such as the temperature threshold set for the over-temperature protection function, the voltage threshold set for the over-voltage protection, etc.; or sends parameter information, such as the current voltage value, current value, etc., to the user terminal.

[0034] Exemplarily, the communication interface can be a USB (Universal Serial Bus) interface, a PCIE (Peripheral Component Interconnect Express) interface, a UART (Universal Asynchronous Receiver / Transmitter) interface, etc. The corresponding communication module is connected through the corresponding communication interface to achieve signal transmission. Of course, in some embodiments, multiple communication interfaces, such as the above-mentioned USB interface, UART interface, etc., can be provided on the control main board to facilitate connection with more devices and thus expand the functions of the control main board.

[0035] It should be noted that the communication module can be a Wi-Fi module, a Bluetooth module, a ZigBee module, or an NB-IoT (Narrow Band Internet of Things) module, etc. The user can communicate and connect with the charging gun through a terminal device (such as a mobile phone, a tablet computer, etc.), so that the user can view the information reflecting the status of the charging gun in real time through an APP (Application), such as real-time voltage, real-time current, real-time power, charging duration, charging power, main board temperature, and other information.

[0036] Therefore, through the communication module, the charging gun can communicate and interact with the user terminal. The user can obtain relevant information of the charging gun, such as current, voltage, etc., through the user terminal, and can send corresponding control information to the charging gun through the user terminal, which helps to improve the user experience.

[0037] In some embodiments, the detection module includes an overcurrent detection circuit unit, an overvoltage detection circuit unit, and an overtemperature detection circuit unit. Among them, the overcurrent detection circuit unit is used to output an overcurrent alarm signal when the current is greater than or equal to the current threshold (such as 20 A), the overvoltage detection circuit unit is used to output an overvoltage alarm signal when the voltage is greater than or equal to the first voltage threshold (such as 260 V) and less than or equal to the second voltage threshold (such as 270 V), and the overvoltage detection circuit unit is also used to output an undervoltage alarm signal when the voltage is greater than or equal to the third voltage threshold (such as 85 V) and less than or equal to the fourth voltage threshold (such as 95 V), and the overtemperature detection circuit unit is used to output an overtemperature alarm signal when the main board temperature reaches the temperature threshold (such as 85 °C). It can be imagined that the above current threshold, voltage threshold, and temperature threshold can be set according to actual applications.

[0038] It should be noted that if the line voltage suddenly becomes too high and exceeds the insulation strength and withstand voltage value of the product, it will cause the product to heat up, break down and be damaged or even cause a fire. Therefore, overvoltage protection is very important. Overvoltage protection means that when the line voltage to be protected exceeds the set maximum value, a protection method that disconnects the power supply or reduces the voltage of the controlled device. For example, when the voltage is 265±5V, overvoltage protection will be triggered, and the charging gun will disconnect the power supply and enter the protection time. Correspondingly, the protection time can be set to 5 seconds. After the protection time, the power supply will be restored and continue to operate to ensure that there is no excessive voltage or current to damage the product or cause a safety accident. When the voltage is 90±5V, undervoltage protection will be triggered, and the protection time can also be set to 5s. Then, after the protection time, the charging gun will resume working, which can avoid the damage caused by the product running under undervoltage conditions. Overcurrent protection is triggered when the current ≥20A, and the protection time is also 5s, and then it resumes working to prevent damage to circuit components, fires or other serious accidents. When the main board temperature value reaches 85 degrees Celsius, overtemperature protection is triggered, and the product will automatically disconnect the power supply to prevent further heating and damage to the product. The protection time is 5s. Corresponding to the following table:

[0039] Protection function Protection value Protection time Overvoltage protection 265±5V 5s Undervoltage protection 90±5V 5s Overcurrent protection ≥20A 5s Over-temperature protection 85℃ 5s

[0040] It can be conceived that the overcurrent detection circuit unit includes an overcurrent detection circuit, Figure 3 which is a schematic structural diagram of the overcurrent detection circuit of the detection module provided by an embodiment of the present application, as Figure 3As shown, in this circuit, the input current is sampled by two - stage NPN transistors. For example, the base terminal of the first NPN transistor Q1 is connected to the first resistor R1 to access the current signal to be detected. The collector terminal of the first NPN transistor Q1 is connected to the base terminal of the second NPN transistor Q2, and the emitter terminal of the first NPN transistor Q1 is grounded; the base terminal of the second NPN transistor Q2 is connected to the supply voltage through the pull - up resistor R2. A zener diode D1 is connected between the collector terminal and the emitter terminal of the second NPN transistor Q2, and the emitter terminal of the second NPN transistor Q2 is grounded. The collector terminal of the second NPN transistor Q2 is connected to the first end of the first sampling resistor R3 through the diode D2, where the anode terminal of the diode D2 is connected to the first sampling resistor R3. In addition, this circuit forms a differential amplifier through the operational amplifier U1 to eliminate the common - mode voltage and amplify the signal, and then the output is sampled by an ADC (Analog - to - Digital Converter). Specifically, the inverting input terminal of the first operational amplifier U1 is connected to the first end of the first sampling resistor R3, the non - inverting input terminal of the first operational amplifier U1 is connected to the second end of the first sampling resistor R3, and an RC filter circuit (the circuit structure composed of the resistor R4 and the capacitor C1 in the figure) is set at the output terminal of the first operational amplifier to connect to the input terminal of the ADC.

[0041] The over - voltage detection circuit unit includes an over - voltage detection circuit. Figure 4 This is a schematic diagram of the structure of the over - voltage detection circuit of the detection module provided by an embodiment of the present application. As Figure 4 shown, this circuit can also access the voltage signal through an operational amplifier. For example, the non - inverting input terminal of the second operational amplifier U2 is grounded through the first resistor R6 and accesses the supply voltage through the first pull - up resistor R7. The inverting input terminal of the second operational amplifier U2 is grounded through the second resistor R8 and accesses the voltage signal through the second sampling resistor R5. The output terminal of the second operational amplifier U2 accesses the supply voltage through the second pull - up resistor R9 and is connected to the base terminal of the third NPN transistor Q3 through the third resistor R10. The collector terminal of the third NPN transistor Q3 accesses the supply voltage through the third pull - up resistor R11, and the collector terminal of the third NPN transistor Q3 is used as the output terminal to connect to a comparator, so as to compare whether the voltage exceeds the threshold. It should be noted that in the case of multiple thresholds, multiple comparators and corresponding comparator circuits can be set to detect whether there is over - voltage and under - voltage currently.

[0042] The over-temperature detection circuit unit includes an over-temperature detection circuit, which can detect the change of the main board temperature by using a thermistor. For example, a first resistor is connected in series with the thermistor, the first resistor is also connected to the supply voltage, the thermistor is also grounded, and one end of the connection between the first resistor and the thermistor is also connected to the non-inverting input terminal of a comparator. The inverting input terminal of the comparator is connected to a reference voltage set corresponding to the temperature threshold, so as to perform comparison through the comparator, thereby determining whether the main board temperature exceeds the temperature threshold.

[0043] It should be noted that the above detection circuit can also be other detection circuits in the art, as long as it can achieve the corresponding detection functions (such as over-voltage detection, over-current detection, over-temperature detection, etc.).

[0044] For different alarm signals, the control main board outputs corresponding signals to control the on, flash, and on-off duration of the three-color indicator light. Specifically, in the case of receiving an over-current alarm signal, the control main board outputs a first light signal; in the case of receiving an over-voltage alarm signal, the control main board outputs a second light signal; in the case of receiving an under-voltage alarm signal, the control main board outputs a third light signal; in the case of receiving an over-temperature alarm signal, the control main board outputs a fourth light signal. It should be noted that different light signals control the three-color indicator light to be in different states, and the light signals set corresponding to different alarm signals can be set according to actual application requirements.

[0045] Therefore, the charging gun realizes the detection of current, voltage, and main board temperature through the detection module, so as to be able to provide detection information for the charging gun, which helps to better detect fault problems, and thus provides corresponding protection functions for the charging gun.

[0046] In one embodiment, the detection module further includes a battery power detection circuit unit. It can be imagined that the battery power detection circuit unit can be used to detect the battery power connected. That is, when the charging gun is connected to an external device, the battery power detection circuit unit is connected to the battery of the external device and is used to detect the battery power of the external device. Correspondingly, the control main board controls the display screen to display the battery power when receiving the battery power information.

[0047] It can be understood that the battery power detection circuit unit can use the voltage detection method to judge the battery power. For example, using the above over-voltage detection circuit for detecting voltage, after detecting the corresponding voltage, the control main board can determine the battery power based on the relationship between the power and the voltage. After the control main board determines the corresponding battery power information, it can control the display screen to display the battery power by outputting a corresponding display signal.

[0048] Therefore, the charging gun detects the battery power of an external device through the power detection circuit unit and displays it on the display screen of the charging gun, so that the user can learn the current battery power, which helps the user to grasp the charging situation.

[0049] In some embodiments, the three-color indicator light is a three-color LED light. The display screen outputs corresponding light signals through the second signal output interface thereon, so that the three-color LED light controls the blinking times of different color lights according to the received light signals. It can be imagined that the blinking times are the blinking times within a preset time period, such as blinking N times within 5 seconds, where N is a value preset for the corresponding blinking times. In addition, different light signals correspond to different protection functions. For example, the first light signal corresponds to the overcurrent protection function, and the second light signal corresponds to the overvoltage protection function, etc. It should be imagined that in order to better display different protection functions through the three-color indicator light, for different protection functions, the light effects formed by the light signals output on the control main board are very different, so as to form a large difference in the view of the user for easy distinction. For example, the lights of different colors blink, or blink at a frequency that is a multiple of the previous blinking frequency. In this regard, through the three-color indicator light, the control main board can display the current charging gun status for the user through different light effects and can play a significant reminder role, which helps to improve the user experience.

[0050] In one embodiment, the touch button is used to provide a touch function for the user. In response to the user's touch action on the touch button, the touch button transmits the corresponding signal to the control main board. For example, when the touch button is in the long-press state, the control main board can receive the first touch signal; when the touch button is in the short-press state, the control main board can receive the second touch signal. It can be imagined that when the corresponding menu interface is displayed on the display screen, the user can control the menu items selected in the menu interface by touching the touch button. For example, when the touch button is in the long-press state, the control main board receives the first touch signal, and then the control main board triggers the control of the display content according to the first touch signal, so that the display effect on the display screen is to enter the current menu item in the menu interface. Another example is that when the touch button is in the short-press state, the control main board receives the second touch signal, and then the control main board triggers the control of the display content according to the second touch signal, so that the display effect on the display screen is to switch the current menu item to the next menu item.

[0051] Therefore, the charging gun provides a control button for the user to interact through the touch button. The user can control the charging gun through the touch action on the touch button, which helps the user to learn the current charging status of the charging gun and make corresponding configurations, thereby improving the user's experience.

[0052] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, commodity or device comprising the element.

[0053] Note that the above is only a preferred embodiment of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments only. Without departing from the concept of the present application, more other equivalent embodiments can be included, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A charging gun, characterized in that, Including: A plug for connecting to an external power supply; A control box, at the first end of the housing assembly of the control box, there is a first wire hole, inside the housing assembly of the control box, there is a control main board, the power input interface of the control main board is connected to the plug through a power cord, the power cord passes through the first wire hole, on the control main board, there is a detection module for detecting the excitation signal and the main board temperature of the charging gun; A display screen connected to the first signal output interface of the control main board, at the installation position of the display screen on the control box, there is a first transparent window, the display screen is arranged in the first transparent window, and the display screen is used for displaying the detection result of the detection module; A three-color indicator light connected to the second signal output interface of the display screen, at the installation position of the three-color indicator light on the control box, there is a second transparent window, the three-color indicator light is arranged in the second transparent window, and the three-color indicator light is used for outputting a light corresponding to the charging gun state according to the received light signal; A touch button connected to the control interface on the control main board, and the touch button is used for outputting the received touch control signal to the control main board; A charging gun head connected to the power output interface of the control main board through a charging cable, at the second end of the housing assembly of the control box, there is a second wire hole, and the charging cable passes through the second wire hole.

2. The charging gun according to claim 1, characterized in that, The housing assembly of the control box includes a main board cover, a silica gel part and a main board housing; Both the first transparent window and the second transparent window are arranged on the main board cover, and the main board cover is also provided with a plurality of first screw holes, and each of the first screw holes extends a preset distance towards the inner side of the main board cover to form an extension column; The silica gel part is arranged between the main board cover and the main board housing, and the silica gel part includes a plurality of silica gel rings with the same number and position as the first screw holes, and the silica gel rings are used for sleeving on the extension columns; The main board housing is used for fixing the control main board, and the main board housing is provided with corresponding second screw holes at the positions corresponding to the plurality of first screw holes, and the main board housing and the main board cover are fixedly connected by screws engaging with the first screw holes and the second screw holes respectively; 3. The charging gun according to claim 2, characterized in that, Inside the main board housing, there are a plurality of fixing columns for fixing the control main board at the installation position.

4. The charging gun according to claim 1, characterized in that, It further includes a communication module arranged inside the control box, the communication module is connected to the communication interface of the control main board, and the communication module is used for connecting to a user terminal to receive the configuration parameters sent by the user terminal and sending the configuration parameters to the control main board, or sending parameter information to the user terminal, and the configuration parameters are used for configuring the threshold parameters corresponding to the protection function.

5. The charging gun according to claim 4, wherein, The communication module is a Wi-Fi module, a Bluetooth module, a ZigBee module or an NB-IoT module.

6. The charging gun according to claim 1, wherein The detection module includes an overcurrent detection circuit unit, an overvoltage detection circuit unit, and an overtemperature detection circuit unit. The overcurrent detection circuit unit is configured to output an overcurrent alarm signal when the current is greater than or equal to the current threshold. The overvoltage detection circuit unit is configured to output an overvoltage alarm signal when the voltage is greater than or equal to the first voltage threshold and less than or equal to the second voltage threshold. The overvoltage detection circuit unit is further configured to output an undervoltage alarm signal when the voltage is greater than or equal to the third voltage threshold and less than or equal to the fourth voltage threshold. The overtemperature detection circuit unit is configured to output an overtemperature alarm signal when the main board temperature reaches the temperature threshold; The control main board is configured to output a first light signal when receiving the overcurrent alarm signal. The control main board is further configured to output a second light signal when receiving the overvoltage alarm signal. The control main board is further configured to output a third light signal when receiving the undervoltage alarm signal. The control main board is further configured to output a fourth light signal when receiving the overtemperature alarm signal.

7. The charging gun according to claim 1 or 6, characterized in that, The detection module further includes a power detection circuit unit. When the charging gun is connected to an external device, the power detection circuit unit is connected to the battery of the external device and is configured to detect the battery power of the external device. The control main board is configured to control the display screen to display the battery power when receiving the battery power information.

8. The charging gun according to claim 1 or 6, characterized in that The three-color indicator light is a three-color LED light. The three-color LED light controls the blinking times of different color lights in the three-color LED light according to the received light signal, and different light signals correspond to different protection functions.

9. The charging gun according to claim 1, characterized in that, The display screen is an LCD display screen.

10. The charging gun according to claim 1, characterized in that, When the touch button is in the long-press state, the control main board receives a first touch signal. When the touch button is in the short-press state, the control main board receives a second touch signal.

Images