A portable charging pile

Abstract

The application discloses a portable charging pile and belongs to the technical field of charging piles. The portable charging pile comprises a box body, a wall-penetrating terminal and an output connector are arranged on the box body. The wall-penetrating terminal and the output connector provide interfaces for external power supply access and power output, so that the portable charging pile can be freely moved to the vicinity of the external power supply for connection and charging operation. Further, a circuit breaker is arranged in the box body and is electrically connected with the wall-penetrating terminal. A charging assembly is also arranged in the box body, and the charging assembly comprises a charging module, the charging module has an alternating-current terminal and a direct-current terminal, the alternating-current terminal is electrically connected with the circuit breaker, can receive external three-phase alternating current and convert the three-phase alternating current into direct current suitable for charging of an automobile battery. The direct-current terminal is connected with a direct-current side assembly, and the direct-current side assembly is electrically connected with the output connector. The direct-current side assembly is used for conducting the direct current converted by the charging module, and finally transmits the power to a user load through the output connector, so that the charging function is realized.

Description

Technical Field

[0001] This application relates to the field of charging pile technology, and in particular to a portable charging pile. Background Technology

[0002] With the rapid growth of electric vehicles, the demand for public charging stations has also increased. However, due to the long charging time of electric vehicles, during peak travel periods, a large number of electric vehicles need to charge simultaneously, and the limited number of charging stations cannot meet the charging needs of many vehicles, resulting in serious queuing problems.

[0003] While building a large number of charging stations can alleviate charging pressure during peak hours to some extent, the construction of public charging stations requires a certain amount of space. In some urban centers and older residential areas, space resources are extremely scarce, making large-scale construction of charging stations difficult. Moreover, peak travel times are relatively concentrated, such as holidays and weekday morning and evening rush hours, so building a large number of charging stations would result in a waste of resources. Summary of the Invention

[0004] The purpose of this application is to provide a portable charging station to solve the problem that the number of charging stations cannot meet the charging needs of numerous vehicles during peak travel periods in the prior art.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] This application provides a portable charging station, comprising:

[0007] The enclosure is equipped with through-wall terminals and output connectors.

[0008] The circuit breaker is installed inside the enclosure and is electrically connected to the through-wall terminal.

[0009] A charging assembly, disposed inside the housing, includes a charging module having an AC terminal and a DC terminal, the AC terminal being electrically connected to the circuit breaker;

[0010] A DC-side assembly, which is electrically connected to the DC terminal and the output connector, respectively.

[0011] In use, the portable charging station of this solution can be moved near a power source. The external power supply is connected through the wall-penetrating terminal on the casing. Current flows through the wall-penetrating terminal into the circuit breaker, and then through the circuit breaker to the AC terminal of the charging module. After receiving the AC power, the charging module converts the three-phase AC power into DC power suitable for the car battery. The DC power is output from the DC terminal of the charging module. The DC-side component transmits the DC power output from the charging module to the output connector. After the operator connects the charging gun to the output connector, the car can be charged.

[0012] This solution integrates circuit breakers, charging components, and DC-side components within the enclosure, converting external three-phase AC power into DC power suitable for charging electric vehicle batteries, and supplying power to the electric vehicle through the output connector. This solution can be flexibly deployed according to actual charging demand. During peak travel periods, it can be transported to a charging site near the power source for vehicle charging. During off-peak travel periods, it can be recycled. This effectively alleviates the supply and demand imbalance of public charging stations during peak travel times, improves the utilization efficiency of charging station resources, and avoids the problems of insufficient site space and resource waste associated with constructing numerous fixed charging stations.

[0013] Optionally, the housing has an air outlet and an air inlet on opposite sides. The charging assembly also includes a support frame with a hollow interior and openings on both sides. The charging module is disposed inside the support frame. The two opening sides of the support frame are respectively provided with an air inlet hood opposite to the air inlet and an air outlet hood opposite to the air outlet. The air outlet hood has a wire hole. The support frame is detachably provided with a terminal fixing plate at one end of the air outlet hood. The terminal fixing plate is used to fix the AC terminal and DC terminal of the charging module.

[0014] This design features an air outlet and an air inlet vent positioned opposite each other on the enclosure. The charging module is housed within a hollow support frame with openings on both sides. An air inlet hood and an air outlet hood are respectively installed on the two opening sides of the support frame. The air inlet hood, positioned opposite the air inlet vent, guides external air into the support frame for heat exchange with the charging module. The air outlet hood, positioned opposite the air outlet vent, ensures the smooth exhaust of heat-absorbing air, effectively solving the heat dissipation problem of the charging module. Furthermore, a terminal fixing plate is detachably installed on the port of the support frame located on the air outlet hood side. The terminal fixing plate secures the AC and DC terminals of the charging module, ensuring a reliable connection between the charging module and external circuitry. By replacing the terminal fixing plate, compatibility with charging modules of different power ratings can be achieved, meeting diverse charging needs.

[0015] Optionally, the DC side assembly includes: a positive copper busbar and a negative copper busbar, the positive copper busbar being connected to the positive terminal of the DC terminal, the negative copper busbar being connected to the negative terminal of the DC terminal, and a DC contactor and a DC fuse being provided on the positive copper busbar.

[0016] In this design, the positive and negative copper busbars are connected to the positive and negative DC terminals of the charging module, respectively, to guide electrical energy from the charging module to the output connector. A DC contactor and a DC fuse are installed on the positive copper busbar. The DC contactor connects or disconnects the circuit of the positive copper busbar, controlling the charging process. When charging begins, the DC contactor closes, allowing charging current to flow to the electric vehicle; when charging is complete or an abnormal situation occurs, the DC contactor opens, cutting off the charging circuit and ensuring charging safety. The DC fuse, as a protective element of the charging circuit, will quickly melt and disconnect the circuit when overcurrent, short circuit, or other faults occur in the circuit, preventing the fault from escalating and protecting the charging station and electric vehicle from damage.

[0017] Optionally, the housing has an inclined plate with one side facing inward, the through-wall terminal is inserted through the inclined plate, the housing has an input port, the charging power supply can be connected to the through-wall terminal through the input port, and the housing is detachably provided with an AC waterproof baffle for sealing the input port.

[0018] This solution effectively prevents dust, moisture, and other impurities from entering the through-wall terminals by placing the through-wall terminals on an inclined plate facing inwards towards the inside of the enclosure and sealing the input port with an AC waterproof baffle.

[0019] Optionally, the circuit breaker is fixedly connected to the inner wall of the enclosure, the enclosure has an adjustment port for adjusting the circuit breaker switch, and the enclosure is detachably provided with a circuit breaker waterproof baffle for sealing the adjustment port.

[0020] This solution provides an adjustment port on the enclosure for easy operation of the circuit breaker. By incorporating a waterproof baffle on the circuit breaker, the adjustment port can be sealed when operation is not required, preventing moisture, dust, and other contaminants from entering the enclosure and causing damage to the circuit breaker and other electrical components.

[0021] Compared with existing technologies, the beneficial effects achieved by this application are as follows: This application integrates components such as circuit breakers, charging components, and DC-side components within a housing. It can convert external three-phase AC power into DC power suitable for charging electric vehicle batteries and supply power to the electric vehicle through an output connector. It features a compact structure and convenient mobility. This application can be flexibly deployed according to actual charging needs. During peak travel periods, it can be transported to a charging site near the power source for vehicle charging. During off-peak travel periods, it can be recycled. This effectively alleviates the supply and demand imbalance of public charging stations during peak travel periods, improves the utilization efficiency of charging station resources, and avoids the problems of insufficient site space and resource waste associated with constructing numerous fixed charging stations. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 These are schematic diagrams of the internal structure of some embodiments provided in this application;

[0024] Figure 2 These are schematic diagrams of the internal structure of some embodiments provided in this application;

[0025] Figure 3 These are schematic diagrams of the charging component structure of some embodiments provided in this application;

[0026] Figure 4 These are schematic diagrams of the charging component structure of some embodiments provided in this application;

[0027] Figure 5 These are side views of some embodiments provided in this application;

[0028] Figure 6 These are side views of some embodiments provided in this application;

[0029] Figure 7 This is a schematic diagram of the overall structure of some embodiments provided in this application.

[0030] Explanation of reference numerals in the attached diagram: 1-Enclosure; 2-Circuit breaker; 3-Charging assembly; 4-DC side assembly; 5-Control assembly; 6-Maintenance board; 7-Handle; 8-Shock-absorbing foot pad; 11-Through-wall terminal; 12-Output connector; 13-Exhaust window; 14-Inlet window; 15-Sloping plate; 16-Input port; 17-AC waterproof baffle; 18-Adjustment port; 19-Circuit breaker waterproof baffle; 31-Charging module; 32-Support frame; 33-Inlet hood; 34-Exhaust hood; 35-Terminal fixing plate; 41-Positive copper busbar; 42-Negative copper busbar; 43-DC contactor; 44-DC fuse; 51-Main board; 52-Auxiliary power supply; 53-Adapter terminal; 341-Wire passage hole. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure / application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0032] This embodiment describes a portable charging station, referencing... Figure 1 The portable charging station in this embodiment includes a housing 1. The housing 1 serves as the supporting structure for the portable charging station, providing installation space for the internal components. A through-wall terminal 11 and an output connector 12 are provided on the housing 1. The through-wall terminal 11 and the output connector 12 provide interfaces for external power input and power output, allowing the portable charging station of this embodiment to be freely moved near an external power source for charging. Furthermore, a circuit breaker 2 is installed inside the housing 1, electrically connected to the through-wall terminal 11, serving as circuit protection. When an overload or short circuit occurs in the circuit, the circuit breaker 2 can quickly disconnect the circuit, preventing damage to the internal components due to excessive current and ensuring the safety of the charging process. (Reference) Figure 3 The housing 1 also houses a charging assembly 3, which includes a charging module 31. The charging module 31 has AC and DC terminals. The AC terminals are electrically connected to the circuit breaker 2, capable of receiving external three-phase AC power and converting it into DC power suitable for charging car batteries, providing a suitable form of electrical energy for subsequent electric vehicle charging. The DC terminals are connected to a DC-side component 4, which is electrically connected to the output connector 12. The DC-side component 4 conducts the DC power converted by the charging module 31, ultimately transmitting the electrical energy to the user's load through the output connector 12 to achieve the charging function.

[0033] In use, the portable charging station of this embodiment can be moved near a power source. The external power supply is connected through the wall-penetrating terminal 11 on the housing 1. The current flows through the wall-penetrating terminal 11 into the circuit breaker 2, and then through the circuit breaker 2 to the AC terminal of the charging module 31. After receiving the AC power, the charging module 31 converts the three-phase AC power into DC power suitable for the car battery. The DC power is output from the DC terminal of the charging module 31. The DC side component 4 transmits the DC power received from the charging module 31 to the output connector 12. After the operator connects the charging gun to the output connector 12, the car can be charged.

[0034] This embodiment allows for flexible allocation based on actual charging demand. During peak travel periods, charging stations can be transported to charging sites near power sources for vehicle charging. They can be retrieved during off-peak periods. This effectively alleviates the supply-demand imbalance of public charging stations during peak travel times and improves the utilization efficiency of charging station resources. It avoids the problems of insufficient site space and resource waste associated with constructing numerous fixed charging stations.

[0035] Example 2:

[0036] Based on the same inventive concept as Embodiment 1, refer to Figures 3 to 6In this embodiment, air outlet windows 13 and air inlet windows 14 are arranged opposite each other on two opposite sides of the housing 1. The charging assembly 3 also includes a support frame 32, which is hollow inside with openings on both sides, and the charging module 31 is disposed inside the support frame 32. The charging module 31 is disposed inside the hollow support frame 32 with openings on both sides. An air inlet hood 33 and an air outlet hood 34 are respectively provided on the two opening sides of the support frame 32. The air inlet hood 33 is arranged opposite to the air inlet window 14, which can guide external air into the interior of the support frame 32 and exchange heat with the charging module 31; the air outlet hood 34 is arranged opposite to the air outlet window 13, which ensures that the air after absorbing heat can be smoothly discharged, effectively solving the heat dissipation problem of the charging module 31. The air outlet hood 34 has a wire hole 341 for the wiring of AC terminals and DC terminals to pass through. In addition, a terminal fixing plate 35 is detachably provided on the port of the support frame 32 located on the side of the air outlet hood 34. The terminal fixing plate 35 is used to fix the AC terminals and DC terminals of the charging module 31, ensuring a reliable connection between the charging module 31 and the external circuit. At the same time, by replacing the terminal fixing plate 35, compatibility of charging modules 31 with different power can be achieved, meeting diverse charging needs.

[0037] Example 3:

[0038] Based on the same inventive concept as Embodiment 1, refer to Figure 1 and Figure 2 In this embodiment, the DC-side component 4 includes a positive copper busbar 41 and a negative copper busbar 42. The positive and negative copper busbars 41 and 42 are respectively connected to the positive and negative DC terminals of the charging module 31, guiding electrical energy from the charging module 31 to the output connector 12. Further, a DC contactor 43 and a DC fuse 44 are provided on the positive copper busbar 41. The DC contactor 43 is used to connect or disconnect the circuit of the positive copper busbar 41, controlling the charging process. When charging needs to begin, the DC contactor 43 closes, allowing charging current to flow to the electric vehicle; when charging is complete or an abnormal situation occurs, the DC contactor 43 opens, cutting off the charging circuit and ensuring charging safety. The DC fuse 44 serves as a protective element for the charging circuit. When overcurrent, short circuit, or other faults occur in the circuit, the DC fuse 44 will quickly melt, cutting off the circuit, preventing the fault from escalating, and protecting the charging pile and electric vehicle from damage.

[0039] In this embodiment, a control component 5 is also provided inside the housing 1. The control component 5 includes a main board 51, an auxiliary power supply 52, and an adapter terminal 53. The main board 51 is signal-connected to the DC contactor 43. The main board 51 integrates multiple functional units, including a GPS positioning unit, a communication unit, a billing unit, a charging unit, and a human-machine interaction unit. The GPS positioning unit provides the geographical location information of the charging pile, facilitating the back-end management system's location and management of the portable charging pile, such as displaying the charging pile's location on a map for easy user search and use. The communication unit enables data transmission and communication between the charging pile and the back-end management system, allowing the back-end to monitor the charging pile's operating status and obtain charging data in real time. In this embodiment, the communication unit uses a wireless communication unit, specifically a GPRS or 4G communication unit. Wireless communication eliminates the need for complex communication lines, making installation and maintenance more convenient, while also enabling remote data transmission and management. The billing unit calculates charging fees based on factors such as charging power and charging time, ensuring the accuracy and fairness of billing. The charging unit controls the charging module 31 to charge the electric vehicle, including adjusting the charging current and voltage, and starting and stopping the charging process, ensuring the safety and efficiency of the charging process. The human-machine interface unit provides an interactive interface between the user and the charging pile, displaying information such as charging status and charging fees. Users can operate through this interface, such as starting or stopping charging.

[0040] Furthermore, the auxiliary power supply 52 and the adapter terminal 53 are electrically connected to the main board 51. The auxiliary power supply 52 provides a stable power supply to the various components in the control assembly 5, ensuring that the control assembly 5 can operate normally under various conditions. For example, when the main power supply fluctuates or is briefly interrupted, the auxiliary power supply 52 can maintain the basic operation of the control assembly 5, ensuring the safety and stability of the charging pile. The adapter terminal 53 is used to realize the electrical connection between the various components inside the control assembly 5 and with external circuits, ensuring that signals and current can be transmitted accurately and stably, ensuring the normal operation of the charging pile.

[0041] In this embodiment, the main body is provided with a touch screen, a status indicator light and an emergency button, and the touch screen, status indicator light and emergency button are respectively connected to the main board 51 signal.

[0042] Example 4:

[0043] Based on the same inventive concept as Embodiment 1, refer to Figure 2 and Figure 7In this embodiment, the housing 1 has an inclined plate 15 with one side sloping inwards. A through-wall terminal 11 is inserted through the inclined plate 15. The housing 1 has an input port 16, through which the charging power supply can be connected to the through-wall terminal 11. Furthermore, an AC waterproof baffle 17 for sealing the input port 16 is bolted to the housing 1. By placing the through-wall terminal 11 on the inclined plate 15 sloping inwards and sealing the input port 16 with the AC waterproof baffle 17, dust, moisture, and other impurities are effectively prevented from entering the through-wall terminal 11.

[0044] Furthermore, the circuit breaker 2 is fixedly connected to the inner wall of the enclosure 1. The enclosure 1 has an adjustment port 18 for adjusting the switch of the circuit breaker 2. A waterproof baffle 19 for sealing the adjustment port 18 is bolted to the enclosure 1. The adjustment port 18 on the enclosure 1 facilitates operation of the circuit breaker 2 by personnel. The waterproof baffle 19 seals the adjustment port 18 when the circuit breaker 2 is not needed, preventing moisture, dust, etc., from entering the enclosure 1 and avoiding damage to the circuit breaker 2 and other electrical components.

[0045] In this embodiment, a maintenance plate 6 is detachably provided on one side of the housing 1, a handle 7 is provided on the top of the housing 1, and shock-absorbing pads 8 are provided on the bottom.

[0046] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this disclosure / application, and these improvements and modifications should also be considered within the protection scope of this disclosure / application.

Claims

1. A portable charging station, characterized in that, include: The enclosure (1) is provided with a wall-penetrating terminal (11) and an output connector (12). The circuit breaker (2) is installed inside the enclosure (1) and is electrically connected to the through-wall terminal (11); The charging assembly (3) is located inside the housing (1) and includes a charging module (31). The charging module (31) has an AC terminal and a DC terminal. The AC terminal is electrically connected to the circuit breaker (2). DC side component (4), which is electrically connected to the DC terminal and the output connector (12) respectively.

2. The portable charging station according to claim 1, characterized in that, The housing (1) has an air outlet (13) and an air inlet (14) on opposite sides. The charging assembly (3) also includes a support frame (32). The support frame (32) is hollow inside and has openings on both sides. The charging module (31) is located inside the support frame (32). The support frame (32) has an air inlet hood (33) opposite to the air inlet (14) and an air outlet hood (34) opposite to the air outlet (13) on the two opening sides. The air outlet hood (34) has a wire hole (341). The support frame (32) has a terminal fixing plate (35) detachably located on one side of the air outlet hood (34). The terminal fixing plate (35) is used to fix the AC terminal and DC terminal of the charging module (31).

3. The portable charging station according to claim 1, characterized in that, The DC side assembly (4) includes a positive copper busbar (41) and a negative copper busbar (42). The positive copper busbar (41) is connected to the positive terminal of the DC terminal, and the negative copper busbar (42) is connected to the negative terminal of the DC terminal. A DC contactor (43) and a DC fuse (44) are provided on the positive copper busbar (41).

4. The portable charging station according to claim 3, characterized in that, The housing (1) is equipped with a control component (5), which includes a main board (51), an auxiliary power supply (52), and an adapter terminal (53). The main board (51) is connected to the DC contactor (43) via signal, and the auxiliary power supply (52) and the adapter terminal (53) are electrically connected to the main board (51) respectively.

5. The portable charging station according to claim 4, characterized in that, The enclosure (1) is equipped with a touch screen, a status indicator light and an emergency button, and the touch screen, the status indicator light and the emergency button are respectively connected to the motherboard (51) for signal transmission.

6. The portable charging station according to claim 1, characterized in that, The enclosure (1) has an inclined plate (15) with one side facing inward. The through-wall terminal (11) is installed on the inclined plate (15). The enclosure (1) has an input port (16). An external power supply can be connected to the through-wall terminal (11) through the input port (16). The enclosure (1) is detachably equipped with an AC waterproof baffle (17) for sealing the input port (16).

7. The portable charging station according to claim 1, characterized in that, The circuit breaker (2) is fixedly connected to the inner wall of the housing (1). The housing (1) has an adjustment port (18) for adjusting the switch of the circuit breaker (2). The housing (1) is detachably provided with a circuit breaker waterproof baffle (19) for sealing the adjustment port (18).

8. The portable charging station according to claim 1, characterized in that, A maintenance plate (6) is detachably provided on one side of the housing (1), a handle (7) is provided on the top of the housing (1), and shock-absorbing pads (8) are provided on the bottom.

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