Hand-push type charging vehicle

Abstract

The invention discloses a hand-push type charging vehicle which comprises a vehicle body, and a grip, a driving wheel, a steering wheel and an auxiliary driving system which are mounted on the vehicle body, a first battery, a second battery, an internal voltage converter and an external voltage converter which are electrically connected with each other are mounted on the vehicle body; the first battery is used for storing electric energy for charging the new energy automobile, and the second battery is used for supplying power to the auxiliary driving system; the internal voltage converter is used for converting the voltage of the first battery into a proper voltage and providing the proper voltage to the second battery so as to charge the second battery; the external voltage converter is used for converting the voltage of the first battery into a voltage suitable for charging a to-be-charged new energy vehicle and charging the to-be-charged new energy vehicle; the auxiliary driving system can provide driving force for the driving wheels and assist the charging vehicle in advancing. The charging vehicle does not need to be operated by professionals, and a user can charge the new energy vehicle through autonomous control.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle charging, and in particular to a hand-push charging vehicle. Background Art

[0002] At present, with the increase in the number of new energy vehicles, the charging demand for new energy vehicles has increased in various aspects, such as the flexibility of the charging location and the convenience of the charging operation. In order to meet the above charging needs, the prior art provides a charging trolley, which can be moved to the location of the new energy vehicle by the operation of a professional to charge the new energy vehicle. This charging trolley often has a standing base for the operator to stand or sit, and the operator controls the charging trolley to the target location by operating the steering handle.

[0003] However, due to the large size and difficulty of operating the existing charging carts, each charging cart needs to be operated by professional staff, that is, each time the charging cart is used, the corresponding staff needs to be dispatched to drive the vehicle. Therefore, this charging cart requires additional human resources, which increases the cost of using the charging cart.

[0004] In view of the above problems, there is an urgent need for a charging cart that allows users to charge new energy vehicles independently without the need for special staff. Summary of the invention

[0005] The present application provides a hand-pushed charging cart, which solves the technical problems in the prior art that the charging cart has poor flexibility and cannot be operated independently by the user.

[0006] The hand-pushed charging vehicle provided in the present application includes a body, and a handle, a driving wheel, a steering wheel, and an auxiliary driving system installed on the body;

[0007] The vehicle body is provided with a first battery, a second battery, an internal voltage converter, and an external voltage converter which are electrically connected to each other; the first battery is used to store electric energy for charging the new energy vehicle, and the second battery is used to power the auxiliary drive system; the internal voltage converter is used to convert the voltage of the first battery into a suitable voltage and provide it to the second battery to realize charging of the second battery; the external voltage converter is used to convert the voltage of the first battery into a voltage suitable for charging the new energy vehicle to be charged, so as to charge the new energy vehicle to be charged;

[0008] The handle is connected to the steering wheel and provides a grip for the user to hold. The handle can control the direction of the steering wheel, thereby controlling the direction of travel of the charging vehicle. A control button is set on the handle, and the control button is used to issue a control instruction to the auxiliary drive system. The auxiliary drive system can provide driving force for the drive wheel to assist the movement of the charging vehicle.

[0009] Optionally, it also includes a charging controller, a battery management system and a charging gun, wherein the charging gun is connected to the first battery via a wire; under the control of the charging controller and the battery management system, the charging gun can realize energy replenishment for the first battery or external charging control.

[0010] Optionally, a placement position for placing the charging gun is provided on the vehicle body, and a first sensor is provided in the placement position; through the sensing result of the first sensor, it is judged that the charging gun is placed in the placement position, and a charging gun in place signal is generated;

[0011] The charging gun in place signal is sent to the auxiliary drive system, and the auxiliary drive system uses the charging gun in place signal as a necessary condition for providing driving force for the drive wheel.

[0012] Optionally, it includes a braking mechanism that provides braking force for the driving wheel, and when the charging gun in place signal is not issued, the braking mechanism is in a braking state; when the charging gun in place signal is issued, the braking mechanism is in a brake release state.

[0013] Optionally, it also includes a signal light, which is electrically connected to the charging controller, and under the control of the charging controller, the signal light displays the status of the charging vehicle; the status includes charging, recharging, fault repair, and usable; different statuses correspond to different signal light forms or colors.

[0014] Optionally, it further includes a display screen, which is electrically connected to the charging controller and the battery manager and is used to obtain the state of the first battery, the state of the second battery and the charging data of the target vehicle;

[0015] The target vehicle is a new energy vehicle that is charged by a charging vehicle.

[0016] Optionally, a power status detection circuit of a second battery is included, which is used to detect the power level of the second battery. When the power level of the second battery is lower than a predetermined threshold, the charging controller controls the first battery to charge the second battery through an internal voltage converter.

[0017] Optionally, the control buttons on the handle include a forward button, a backward button and a stop button, and are arranged on the gripping portion of the handle.

[0018] Optionally, the first battery, the second battery, the internal voltage converter, the external voltage converter, the charging controller, and the battery management system are placed in a charging vehicle shell, and a heat dissipation port is provided on the charging vehicle shell for the installation position of the heat dissipation element therein.

[0019] Optionally, a fault diagnosis port is provided on the housing of the charging vehicle, and a main switch of the charging vehicle and a communication diagnosis interface are installed at this position.

[0020] Optionally, a wireless communication unit is included, which is used to send the working status of the hand-push charging vehicle to the outside through wireless signals.

[0021] Compared with the prior art, this application has the following advantages:

[0022] The hand-push charging cart provided in the present application adopts an auxiliary drive system, which can provide driving force for the drive wheel to assist the movement of the charging cart. Therefore, the user can easily and simply push the hand-push charging cart to the location of the new energy vehicle to be charged by hand to achieve charging. This process does not require the intervention of professional personnel to mobilize the charging cart to provide services, thereby reducing labor costs; the first battery completes voltage conversion through an internal voltage converter to charge the second battery, and the second battery is responsible for powering the auxiliary drive system, ensuring that the auxiliary drive system of the hand-push charging cart can operate normally. At the same time, the hand-push charging cart also provides a handle connected to the steering wheel, through which the direction of the steering wheel can be controlled, thereby controlling the direction of travel of the charging cart, reducing the user's operating difficulty and improving the freedom of using the charging cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the first external structure of the hand-push charging cart provided in an embodiment of the present application.

[0024] Figure 2 A schematic diagram of the second external structure of the hand-push charging cart provided in an embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the first internal structure of the hand-push charging cart provided in an embodiment of the present application.

[0026] Figure 4 A schematic diagram of the second internal structure of the hand-push charging cart provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0028] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The typical use scenario of the embodiment of the present application can be a charging station with several charging piles and several charging vehicles. The charging vehicle can obtain electric energy from the charging pile and store it in its own first battery to complete its own energy replenishment. The charging vehicle can also deliver its own stored electric energy to new energy vehicles to complete the charging of new energy vehicles. As a medium for storing and transmitting electric energy, the charging vehicle needs to have good mobility so that the charging vehicle can be used to charge new energy vehicles anytime and anywhere. In fact, the batteries and other components of the existing charging vehicles are all heavy, and it takes a lot of effort to rely on the user's manpower to push them. Therefore, the embodiment of the present application provides an auxiliary drive system to assist the operation of the charging vehicle. At the same time, the auxiliary drive system has a corresponding second battery as a power supply structure to share the operating pressure of the first battery in the charging vehicle. In particular, the user can issue control instructions to the auxiliary drive system through the handle provided on the charging vehicle to control the movement of the charging vehicle.

[0032] The push-type charging vehicle of the present application can be implemented by the dispatching and management system of the charging pile, which receives and senses the status of each charging vehicle through various sensors installed on the charging pile and the charging vehicle; and obtains information about new energy vehicles entering the charging station through methods such as user scanning codes and automatic vehicle identification; in coordination with the management system of the charging station, owners of new energy vehicles can run small programs or APPs that cooperate with the above-mentioned management system through mobile phones or the vehicle-mounted systems of new energy vehicles, for example, the small program can be opened by scanning the QR code posted by the charging station through the scanning function, and relevant information such as the charging type and charging requirements of the new energy vehicle can be provided through the small program; or, the new energy vehicle can be directly associated with the background management system of the charging station through short-range wireless communication methods such as Bluetooth to obtain relevant information such as the charging type and charging requirements of the new energy vehicle.

[0033] In this application, in order to distinguish between the two situations of the hand-pushed charging vehicle itself being charged by a charging pile and the charging vehicle charging a new energy vehicle, the charging vehicle charging a new energy vehicle is referred to as discharging. Among them, the new energy vehicle is the vehicle to be charged or the new energy vehicle to be charged. In addition, in the embodiments of this application, the hand-pushed charging vehicle is referred to as the charging vehicle below, unless otherwise specified and explained.

[0034] The present application embodiment provides a hand-pushed charging vehicle. Figure 1 , Figure 2 , Figure 3 and Figure 4 . Figure 1 This is a schematic diagram of the first external structure of the hand-push charging cart provided in an embodiment of the present application. Figure 2 A schematic diagram of the second external structure of the hand-push charging cart provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the first internal structure of the hand-push charging cart provided in an embodiment of the present application. Figure 4 This is a schematic diagram of the second internal structure of the hand-pushed charging vehicle provided in the embodiment of the present application. Figure 1 and Figure 2 The external structure of the hand-pushed charging vehicle is shown from different directions. Figure 3 and Figure 4 The internal structure of the hand-pushed charging vehicle is shown from different directions.

[0035] The hand-pushed charging vehicle includes a body, a handle 307 mounted on the body, a driving wheel 309, a steering wheel 308, and an auxiliary driving system.

[0036] The user can charge the new energy vehicle by controlling the push-type charging cart after obtaining the use permission. Since the push-type charging cart provided in the embodiment of the present application is easy to operate, the user is not limited to professional operators or staff, and does not need to undergo specific training, that is, the owner of the vehicle to be charged can operate it by himself.

[0037] The body 101 of the hand-pushed charging vehicle includes a chassis frame 306 , which serves as the skeleton of the entire charging vehicle and plays a role in supporting and connecting various components of the vehicle.

[0038] A first battery, a second battery, an internal voltage converter, and an external voltage converter which are electrically connected to each other are installed on the vehicle body; the first battery is used to store electric energy for charging the new energy vehicle, and the second battery is used to power the auxiliary drive system; the internal voltage converter is used to convert the voltage of the first battery into a suitable voltage and provide it to the second battery to charge the second battery; the external voltage converter is used to convert the voltage of the first battery into a voltage suitable for charging the new energy vehicle to be charged, so as to charge the new energy vehicle to be charged.

[0039] The first battery 301 is a high-voltage battery, and its internal voltage may reach hundreds of volts or even higher. The second battery is a low-voltage battery, and the voltage of the low-voltage battery can be 48V, so as to provide a suitable voltage for the auxiliary drive system. The first battery 301 is installed and fixed in the high-voltage battery pack frame 302, and the high-voltage battery pack frame 302 is fixedly connected to the chassis frame 102 of the charging vehicle. The second battery is placed in the low-voltage battery compartment 303, and the motor controller for controlling the charging vehicle can also be stored in the low-voltage battery compartment 303.

[0040] The first battery 301 can store electric energy obtained from the charging pile, and the electric energy in the first battery can also be transmitted to the vehicle to be charged to charge the vehicle to be charged. Before the electric energy in the first battery is transmitted to the vehicle to be charged, it is necessary to convert the electric energy of the first battery into the voltage required by the vehicle to be charged through an external voltage converter 401. The second battery is used to store the electric energy obtained from the second battery to power the auxiliary drive system. An internal voltage converter 304 is connected between the first battery 301 and the second battery, and the internal voltage converter 304 can convert the electric energy in the first battery into the voltage required by the second battery and provide it to the second battery. The charging vehicle also includes a high-voltage box 305, which is used to control the execution process of replenishing energy to the first battery and discharging to the outside.

[0041] The handle 307 is connected to the steering wheel 308 and provides a grip for the user to hold. The handle can control the direction of the steering wheel, thereby controlling the direction of travel of the charging vehicle. A control button is set on the handle 307, and the control button is used to issue a control instruction to the auxiliary drive system. The auxiliary drive system can provide driving force for the drive wheel to assist the movement of the charging vehicle.

[0042] The gripping part of the handle is the main operating part for the user. The handle 307 is connected to the steering wheel 308. By operating and controlling the handle, the travel state of the hand-pushed charging cart can be controlled. The steering wheel can also be used to brake the charging cart. During the movement of the charging cart, the change in the direction of the steering wheel can play a role in deceleration and achieve braking of the charging cart. In practical applications, the handle 307 can be directly connected to the steering wheel 308. The user can achieve the steering operation of the steering wheel by simply steering the handle 307, thereby controlling the travel direction of the charging cart. The steering angle of the handle and the steering angle of the steering wheel are synchronized in real time. The handle can also be connected to the steering wheel through other components. For example, a pulley is provided on the handle. When the user turns the pulley to the left, the steering wheel rotates to the left accordingly. Correspondingly, when the pulley slides to the right, the steering wheel also rotates to the right. The pulley can be set as a limited pulley or an infinitely adjustable pulley. In a limited pulley, if it slides to the left (or right) to a certain extent, it can no longer slide to the left (or right). When this limit is reached, the steering angle of the corresponding steering wheel to the left (or right) has also reached the limit to the left (or right). If an infinitely adjustable pulley is used, there is no limit to the sliding of the pulley, and the user can slide the pulley infinitely. If it slides to the left (or right), the corresponding steering wheel will also turn to the left (or right). At this time, the angle of each rotation of the steering wheel can be customized according to the use requirements, and whether the steering wheel sets a maximum rotation limit can also be customized according to the actual situation. When the steering wheel does not have a maximum limit, it indicates that the pulley can control the steering wheel to turn 360 degrees by sliding. The above are all application methods listed for understanding the control of the steering wheel by the handle, but the actual application is not limited to the above scope. As long as the direction of the steering wheel is controlled by the handle, it is included in the scope described in this application.

[0043] The handle 307 can also be designed to facilitate pulling the charging cart. Specifically, the handle 307 is connected to the steering wheel of the charging cart through a connecting component that passes through the bottom plate of the charging cart. The connecting component can be a cylinder, and the vertical rod-shaped part of the handle 307 can be pivoted to the cylinder through a pivot axis, which enables the handle 307 to rotate around the pivot axis in the pitch direction by a certain angle; the intersection of the handle 307 and the connecting component can be provided with a joint structure suitable for the above-mentioned pivot rotation, for example, a central boss is provided on the upper part of the connecting component, and the bottom end of the handle 307 is provided with a fork shape that cooperates with the central boss. The connection part between the connecting component and the bottom plate of the charging cart can rotate, and its rotation axis is in the vertical direction. Through the above structure, the operator can rotate the handle 307 to drive the handle 307 to pitch in the front and rear directions, and can drive the connecting component to rotate in the direction of the vertical rotation axis through the pivot axis to drive the steering wheel to rotate. The above design allows the user to place the handle 307 at the most suitable pitch angle according to their needs so that the operator can pull the charging vehicle as needed, and drive the charging vehicle to turn by rotating the handle 307 in the vertical axis direction. When the above structure is adopted, in order to avoid unreasonable pulling of the handle 307, resulting in too low a pitch angle, a micro switch can be set at a suitable position of the connecting component. When the pitch angle is too low, the micro switch will be pressed by the end of the handle 307. The micro switch controls the auxiliary drive system to perform emergency braking and prompts the need to change the pitch angle of the handle 307. A spring can be set on the pivot shaft connecting the handle 307 and the connecting component, so that the handle 307 can be naturally maintained at any position of the pitch angle; a certain external force needs to be applied to rotate the handle 307 in the pitch direction. In the present application, the handle can also control the auxiliary drive system to provide driving force for the charging vehicle to assist the charging vehicle in moving. The handle is provided with buttons, and the user operates the buttons to issue corresponding control instructions to the auxiliary drive system, and the travel state of the charging vehicle will change accordingly. For example, forward and backward buttons are provided on the handle, and when the user presses the forward button, the auxiliary drive system issues a forward control instruction to control the rotation of the drive wheel 309 so that the charging vehicle moves forward under the push of the user. Correspondingly, when the user presses the backward button, the auxiliary drive system issues a backward control instruction to control the rotation direction of the drive wheel 309 to be opposite to the forward rotation direction. At the same time, if the user pulls the charging vehicle backward, the charging vehicle can move backward.

[0044] The charging vehicle provided in this application provides convenience for users, and the essence of the charging vehicle is to replenish energy and charge. The charging vehicle of this application also includes other necessary components. Based on the structure of the above-mentioned charging vehicle, in one embodiment, the charging vehicle also includes a charging controller, a battery management system and a charging gun, and the charging gun is connected to the first battery through a wire; the charging gun can realize the control of replenishing energy or external charging of the first battery under the control of the charging controller and the battery management system.

[0045] The charging controller 310 is mainly used to control the charging of the charging vehicle to be charged, and the battery management system is mainly used to control the energy replenishment of the charging vehicle itself. The charging gun 102 is the port for connecting the charging vehicle to an external device. The charging gun 102 is connected to the first battery 301 through a wire. Therefore, the power of the first battery 301 and the external transmission need to pass through the charging gun 102 to be realized. It is not difficult to see that although the name here is a charging gun, its actual function is not limited to charging, but can also be used for energy replenishment. A discharge circuit and an energy replenishment circuit are also set between the first battery and the charging gun. The discharge circuit will be turned on when the first battery is needed to charge the charging vehicle, and the energy replenishment circuit will be disconnected at the same time; and the energy replenishment circuit will be turned on when the charging vehicle replenishes itself, and the discharge circuit will be disconnected at the same time. The control of the discharge circuit and the energy replenishment circuit is achieved through the connection between the charging gun and the external device, combined with the joint management of the charging manager and the battery management system.

[0046] In one embodiment, a placement position 103 for placing the charging gun is provided on the vehicle body, and a first sensor is provided in the placement position; through the sensing result of the first sensor, it is judged that the charging gun is placed in the placement position, and a charging gun in place signal is generated; the charging gun in place signal is sent to the auxiliary drive system, and the auxiliary drive system uses the charging gun in place signal as a necessary condition for providing driving force for the drive wheel.

[0047] Since the charging gun 102 is connected to the first battery 301 inside the charging car, the first battery is often a high-voltage battery and a dangerous component. If the charging gun is not stored properly, it may cause a safety accident. Considering the safety of the equipment in actual applications, when the charging gun is not connected to the external device, it cannot be held in the user's hand, dragged on the ground, or even placed in other dangerous positions. Therefore, the charging gun 102 needs to be placed in a fixed and reasonable position. The placement position is to solve the problem that the charging gun cannot be stored normally. The placement position can be set at any position of the vehicle body, which can be convenient in actual application. The first sensor set in the placement position can be a sensor that can detect the position and placement status of an object, such as a Hall element, a photoelectric sensor, etc. There are two types of sensing results of the first sensor, including the charging gun is placed in place and the charging gun is not placed in place. In addition, in order to reduce the misjudgment of the charging gun in place and improve the safety factor, it is also necessary to judge that the time after the charging gun is placed in place reaches a predetermined time threshold before the charging gun can be determined to be in place. At the same time, the first sensor also sends the placement signal to the auxiliary drive system to provide the necessary conditions for the auxiliary drive system to provide driving force. If the auxiliary drive system does not receive the in-place signal, it will not start, that is, it will not provide auxiliary driving force. If the auxiliary drive system receives the in-place signal and other conditions are met, it will provide driving force to the drive wheel. Among them, the other conditions may include whether the power of the second battery is sufficient at this time. In addition, the first sensor can also send a non-in-place signal, or set a corresponding locking mechanism in the placement position 103 to ensure that the charging gun cannot be taken out after the in-place signal is sent to the auxiliary drive system. Specifically, the placement status of the charging gun can be continuously monitored after the in-place signal is sent to the auxiliary drive system. Once it is detected that it is not in place, an out-of-place signal is immediately issued to control the auxiliary drive system to respond; it can also be provided by setting an electronic lock in the placement position, the electronic lock is electrically connected to the auxiliary drive system, and when the in-place signal is sent to the auxiliary drive system, the electronic lock is locked, and during the operation of the auxiliary drive system, it cannot be unlocked until the auxiliary drive system stops running, and the electronic lock can be unlocked.

[0048] The auxiliary drive system includes a motor controller, which provides driving force for the charging vehicle and drives the charging vehicle to move forward. The motor controller can be placed in the low-voltage battery compartment 303 together with the second battery. In the process of driving the charging vehicle, various uncertain factors (such as the above-mentioned charging gun is not in place) may be encountered, causing the charging vehicle to not meet the conditions for continuing to drive. Therefore, in one embodiment, the charging vehicle also includes a braking mechanism that provides braking force for the driving wheel. When the charging gun is in place signal is not issued, the braking mechanism is in a braking state; when the charging gun is in place signal is issued, the braking mechanism is in a brake release state. When the charging gun is in place signal is not issued, the charging vehicle may be in one of the following three states: connected to the charging pile, connected to the vehicle to be charged, and the charging gun is not placed in the placement position and is not connected to the charging pile or the vehicle to be charged. In the above state, the charging vehicle does not meet the conditions for moving. Therefore, in order to prevent the vehicle from being pushed manually, a braking mechanism is set to limit the movement of the charging vehicle.

[0049] In one embodiment, it also includes a signal light, which is electrically connected to the charging controller. Under the control of the charging controller, the signal light displays the status of the charging vehicle; the status includes charging, recharging, fault repair, and usable; different statuses correspond to different signal light forms or colors.

[0050] The signal light 104 can be installed on the body 101 of the charging vehicle. The user can intuitively obtain the status information of the charging battery by observing the signal light of the charging vehicle. The charging controller can obtain the status information of the charging vehicle, and the status includes at least charging, recharging, fault repair, and usable. The signal light is connected to the charging controller to display the status information of the charging vehicle to the user. The color of the signal light and the light-off pattern can indicate the status of the charging vehicle. For example, the continuous red light indicates that the current charging vehicle is in a fault repair state. When the user sees that the signal light is continuously red, the information that the charging vehicle cannot be used can be intuitively obtained. Flashing red means that the current charging vehicle is in a state of recharging. If you want to use the charging vehicle at this time, you need to stop recharging the charging vehicle and disconnect it from the charging pile. Flashing green light indicates that the current charging vehicle is in a state of charging, that is, the current charging vehicle is connected to a new energy vehicle. The above colors and lighting forms are only for example and do not limit the specific form.

[0051] In the process of using the charging car, the user also wants to obtain data information related to the new energy vehicle in real time. Therefore, in one embodiment, the charging car also includes a display screen 105, and the display screen 105 is electrically connected to the charging controller and the battery management system, and is used to obtain the state of the first battery, the state of the second battery, and the charging data of the target vehicle; the target vehicle is a new energy vehicle charged by the charging car. The charging controller and the battery manager can obtain the state information of the first battery and the second battery and the charging data of the target vehicle. Therefore, the display screen is electrically connected to the charging controller and the battery manager, and the state information of the first battery and the second battery and the charging data of the target vehicle can be displayed on the display screen. For example, the charging data of the target battery that the user is more concerned about includes the power used by the target vehicle, the remaining power of the first battery, etc. In addition, since the user may not be clear about the meaning corresponding to each lighting form, after adding the display screen 105, the information displayed by the signal light can be synchronized on the display screen, and the information on the display screen can correspond to the state of the signal light in text form. The information corresponding to the signal light displayed on the display screen can be issued in a timely and effective manner when the charging car is abnormal.

[0052] Since the electric energy stored in the second battery comes from the first battery, but the first battery cannot deliver electric energy to the second battery at any time and under any conditions, the detection circuit is set for the second battery to ensure that the second battery has enough power when the charging vehicle is running. In one embodiment, the charging vehicle includes a power state detection circuit of the second battery, which is used to detect the power of the second battery. When the power of the second battery is lower than the predetermined threshold, the charging controller controls the first battery to charge the second battery through the internal voltage converter. In addition, the first battery power detection circuit can also be set. If the power of the first battery is higher than the second predetermined threshold, the condition of outputting electric energy to the second battery is met. If the power of the first battery is lower than the second predetermined threshold, the first power needs to give priority to meeting the demand of the charging vehicle for charging new energy vehicles. To solve the above problem, the detection circuit of the first battery and the detection circuit of the second battery jointly evaluate the power state of the first battery and the second battery. When the power of the second battery is lower than the predetermined threshold, and the power of the first battery is required to be equal to the second predetermined threshold, a prompt is issued to the charging vehicle, prompting the user that the remaining power does not support the continued charging of the new energy vehicle, and a buffer time should also be given instead of stopping immediately. This prompt can be achieved through signal lights, display screens, and mini-programs or APPs on the user side.

[0053] In order to facilitate the user to control the charging vehicle, in one embodiment, the control buttons on the handle 307 include a forward button, a backward button, a stop button, etc., and are arranged on the gripping portion of the handle.

[0054] In one embodiment, the first battery, the second battery, the internal voltage converter, the external voltage converter, the charging controller, and the battery management system are placed in the shell of the charging vehicle, and a heat dissipation port is provided on the shell of the charging vehicle for the installation position of the heat dissipation element. Since the circuit in the charging vehicle will generate a lot of heat during operation, excessive heat will cause the operating efficiency of the circuit structure to decrease, and even cause safety accidents. Therefore, it is necessary to set a heat dissipation element on the charging vehicle. The heat dissipation element can be a fan installed near the heat-generating components in the circuit, or a heat sink or a thermal pad. At the same time, since the body shell will gather the heat generated inside, a heat dissipation port 201 can be provided on the body shell near the heat dissipation element, and thermal paste can also be added to efficiently dissipate the heat inside the charging vehicle.

[0055] In one embodiment, a fault diagnosis port is provided on the housing of the charging vehicle, and the main switch and communication diagnostic interface of the charging vehicle are installed at this position. The fault diagnosis port 106 is an interface for connecting external diagnostic tools or devices to perform fault diagnosis and data collection. When the signal light or display screen indicates that the charging vehicle has a fault, it is necessary to troubleshoot the charging vehicle to determine the location and cause of the fault. Through the fault diagnosis interface, combined with the log data of the management system, the problem of the charging vehicle can be quickly located and solved, such as the voltage, current and temperature parameters of the key components mentioned above. The fault diagnosis port is also used to update and modify the configuration of the software of the charging vehicle control system through diagnostic tools to fix bugs, improve functions or adapt to new charging standards.

[0056] In one embodiment, the charging vehicle includes a wireless communication unit for sending the working status of the push-type charging vehicle to the outside through a wireless signal. Through the wireless communication unit, the charging vehicle can be connected to the dispatching management system or the cloud service, and can transmit the data inside the charging vehicle, such as the battery status, charging rate, equipment health status and other information, and realize the safety monitoring and safeguard measures of the charging equipment, such as real-time alarm function, remote locking equipment, etc., to ensure the safety and reliability of the charging process. In addition, it also provides a technical basis for functions such as remotely viewing the charging status and booking the charging time through mobile phone applications. The above data are very important for operational analysis, performance optimization and predictive maintenance. The wireless communication unit enables operators or managers to remotely monitor the status, operation status and real-time data of the charging process of the charging equipment, which improves the management efficiency and operational safety of the equipment; it also provides users with a more convenient and intelligent use experience, and enhances the convenience of charging new energy vehicles.

[0057] In one embodiment, the push-type charging vehicle is also provided with an energy meter 402 and a gateway 403. The energy meter and the charging manager are electrically connected inside the charging vehicle to obtain relevant data of the external discharge of the charging manager. The energy meter can record the energy consumed by the first battery, which can be used to provide specific energy data and fees for users and operators. The gateway can be used to record data in real time and transmit the data to a server or a backend management system.

[0058] The push-type charging car provided in the embodiment of the present application combines the design ideas of the shared economy products with the design ideas of the charging pile and the charging car. It adopts an auxiliary drive system, and the user can simply operate to realize charging. The charging car can provide services without the intervention of professional personnel, which reduces the labor cost; the first battery in the charging car completes the charging of the second battery internally, and there is no need to charge the second battery separately through an external power supply, making the structure of the charging car more compact. On this basis, the present application fully realizes the user's autonomy in the use of the charging car, just like renting a mobile phone power bank or a shared bicycle. The operation end is only responsible for the placement and maintenance of the product and will not participate in the management of the user's reasonable and legal rental and use process. The auxiliary drive system makes the charging car easy and labor-saving during use, and the autonomous rental and use (the operator will not participate in the dispatch of the charging car unless the charging car fails) reduces the labor cost investment and the higher user freedom, and at the same time provides a technical foundation for the shared push-type charging car.

[0059] Although the present application is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

[0060] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0061] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0062] 1. Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be used to store information by any method or technology. Information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include non-transitory media such as modulated data signals and carrier waves.

[0063] 2. Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

Claims

1. A hand-pushed charging vehicle, characterized in that: It includes a vehicle body, and a handle, a driving wheel, a steering wheel, and an auxiliary driving system installed on the vehicle body; The vehicle body is provided with a first battery, a second battery, an internal voltage converter, and an external voltage converter which are electrically connected to each other; the first battery is used to store electric energy for charging the new energy vehicle, and the second battery is used to power the auxiliary drive system; the internal voltage converter is used to convert the voltage of the first battery into a suitable voltage and provide it to the second battery to realize charging of the second battery; the external voltage converter is used to convert the voltage of the first battery into a voltage suitable for charging the new energy vehicle to be charged, so as to charge the new energy vehicle to be charged; The handle is connected to the steering wheel and provides a grip for the user to hold. The handle can control the direction of the steering wheel, thereby controlling the direction of travel of the charging vehicle. A control button is set on the handle, and the control button is used to issue a control instruction to the auxiliary drive system. The auxiliary drive system can provide driving force for the drive wheel to assist the movement of the charging vehicle.

2. The hand-pushed charging vehicle according to claim 1, characterized in that: It also includes a charging controller, a battery management system and a charging gun, wherein the charging gun is connected to the first battery via a wire; under the control of the charging controller and the battery management system, the charging gun can realize the control of replenishing energy for the first battery or external charging.

3. The hand-pushed charging vehicle according to claim 2, characterized in that: The vehicle body is provided with a placement position for placing the charging gun, and a first sensor is provided in the placement position; through the sensing result of the first sensor, it is judged that the charging gun is placed in the placement position, and a charging gun in place signal is generated; The charging gun in place signal is sent to the auxiliary drive system, and the auxiliary drive system uses the charging gun in place signal as a necessary condition for providing driving force for the drive wheel.

4. The hand-pushed charging vehicle according to claim 3, characterized in that: It includes a braking mechanism for providing braking force for the driving wheel. When the charging gun is in place signal is not issued, the braking mechanism is in a braking state; when the charging gun is in place signal is issued, the braking mechanism is in a brake release state.

5. The hand-pushed charging vehicle according to claim 2, characterized in that: It also includes a signal light, which is electrically connected to the charging controller. Under the control of the charging controller, the signal light displays the status of the charging vehicle; the status includes charging, recharging, fault repair, and usable; different statuses correspond to different signal light forms or colors.

6. The hand-pushed charging vehicle according to claim 2, characterized in that: Also included is a display screen, the display screen is electrically connected to the charging controller and the battery management system, and is used to obtain the first battery status, the second battery status, and the charging data of the target vehicle; The target vehicle is a new energy vehicle that is charged by a charging vehicle.

7. The hand-pushed charging vehicle according to claim 2, characterized in that: A power state detection circuit of a second battery is included, which is used to detect the power state of the second battery. When the power state of the second battery is lower than a predetermined threshold, the charging controller controls the first battery to charge the second battery through an internal voltage converter.

8. The hand-pushed charging vehicle according to claim 2, characterized in that: The first battery, the second battery, the internal voltage converter, the external voltage converter, the charging controller, and the battery management system are arranged in a charging vehicle shell, and a heat dissipation port is arranged on the charging vehicle shell for the installation position of the heat dissipation element therein.

9. The hand-pushed charging vehicle according to claim 2, characterized in that: A fault diagnosis port is arranged on the housing of the charging vehicle, and a main switch of the charging vehicle and a communication diagnosis interface are installed at the position.

10. The hand-pushed charging vehicle according to claim 2, characterized in that: It includes a wireless communication unit, which is used to send the working status of the hand-pushing charging vehicle to the outside through wireless signals.

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