Charging interaction system

Abstract

The utility model relates to a charging interaction system, which comprises an electricity storage device, a power distribution box and a charging pile, the electricity storage device and the charging pile are connected in parallel to the power distribution box, the electricity storage device is used for supplying power to the power distribution box, and the power distribution box is electrically connected to a power grid. The power distribution box is allowed to feed power to the power grid or the power grid supplies power to the power distribution box; the charging interaction system further comprises a first voltage transformer and a first current transformer. The first voltage transformer is arranged between the charging pile and the distribution box and is used for detecting a first voltage phase between the distribution box and the charging pile; the first current transformer is arranged between the distribution box and the power grid and is used for detecting a first current phase between the distribution box and the power grid.

Description

Technical Field

[0001] This utility model relates to the field of charging piles, and in particular to a charging interaction system. Background Technology

[0002] With the rapid development and deployment of new energy vehicles, more and more charging stations are entering people's lives. At the same time, new energy power generation and energy storage technologies are also developing rapidly, and energy storage devices, as well as power generation devices represented by solar panels, are increasingly becoming part of users' lives. The electricity generated by these power generation devices can be stored in energy storage devices, which can then supply power to charging stations. If there is still excess electricity in the energy storage devices, it can be fed back into the grid, generating profit.

[0003] Since charging piles and energy storage devices often come from different manufacturers, their communication protocol requirements differ significantly, making effective interaction impossible. Users cannot effectively know whether the energy storage capacity of the energy storage device meets the needs of the charging pile, nor can they know whether the energy storage device has excess energy to feed back to the grid for profit. Utility Model Content

[0004] Therefore, it is necessary to provide a charging interaction system to address the problem that users cannot effectively know whether the energy storage capacity of the energy storage device meets the usage requirements of the charging pile or whether it can feed power to the grid.

[0005] A charging interaction system includes a power storage device, a power distribution box, and a charging pile. The power storage device and the charging pile are connected in parallel to the power distribution box. The power storage device is used to supply power to the power distribution box. The power distribution box is electrically connected to the power grid to allow the power distribution box to feed power to the power grid or the power grid to supply power to the power distribution box.

[0006] The charging interaction system also includes a first voltage transformer and a first current transformer;

[0007] The first voltage transformer is installed between the charging pile and the distribution box to detect the first voltage phase between the distribution box and the charging pile;

[0008] The first current transformer is installed between the distribution box and the power grid to detect the first current phase between the distribution box and the power grid.

[0009] In one embodiment, the charging pile is equipped with a processor, and the first voltage transformer and the first current transformer are electrically connected to the processor to allow the processor to obtain a first phase difference between the first voltage phase and the first current phase, and to obtain the power status of the energy storage device based on the first phase difference.

[0010] In one embodiment, the charging pile is provided with a prompting unit, which is electrically connected to the processor to obtain the power status of the energy storage device and provide a prompt.

[0011] In one embodiment, the charging interaction system further includes a power generation device, and the energy storage device is electrically connected to the power generation device.

[0012] A charging interaction system includes a power storage device, a power distribution box, and a charging pile. The power storage device and the charging pile are connected in parallel to the power distribution box. The power storage device is used to supply power to the power distribution box. The power distribution box is electrically connected to the power grid to allow the power distribution box to feed power to the power grid or the power grid to supply power to the power distribution box.

[0013] The charging interaction system also includes a second current transformer and a second voltage transformer;

[0014] The second current transformer is installed between the distribution box and the charging pile to detect the second current phase between the distribution box and the charging pile;

[0015] The second voltage transformer is installed between the distribution box and the power grid to detect the second voltage phase between the distribution box and the power grid.

[0016] In one embodiment, the charging pile is equipped with a processor, and the second current transformer and the second voltage transformer are electrically connected to the processor to allow the processor to obtain a second phase difference between the second voltage phase and the second current phase, and to obtain the power status of the energy storage device based on the second phase difference.

[0017] In one embodiment, the charging pile is provided with a prompting unit, which is electrically connected to the processor to obtain the power status of the energy storage device and provide a prompt.

[0018] In one embodiment, the charging interaction system further includes a power generation device electrically connected to the energy storage device.

[0019] A charging interaction system includes a power storage device, a distribution box, and a charging pile. A load, the power storage device, and the charging pile are connected in parallel to the distribution box. The power storage device supplies power to the distribution box, and the distribution box supplies power to the load. The distribution box is electrically connected to the power grid to allow the distribution box to feed power to the power grid or the power grid to supply power to the distribution box.

[0020] The charging interaction system also includes a second voltage transformer and a third current transformer;

[0021] The second voltage transformer is installed between the distribution box and the power grid to detect the second voltage phase between the distribution box and the power grid;

[0022] The third current transformer is installed between the distribution box and the load to detect the third current phase between the distribution box and the load.

[0023] In one embodiment, the charging pile is equipped with a processor, and the second voltage transformer and the third current transformer are electrically connected to the processor to allow the processor to obtain a third phase difference between the second voltage phase and the third current phase, and to obtain the charge status of the energy storage device based on the third phase difference.

[0024] The beneficial effects of this utility model are as follows:

[0025] The distribution box continuously supplies power to the household's electrical loads, drawing energy from either energy storage devices or the power grid. When the energy provided by the energy storage devices is insufficient to cover the load's consumption, the distribution box needs to purchase electricity from the grid, with the current flowing from the grid to the distribution box. Conversely, when the energy provided by the energy storage devices is sufficient to cover the load's consumption and there is a surplus, the distribution box can transfer the excess energy back to the grid for sale, with the current flowing from the distribution box to the grid. Simultaneously, the distribution box can also transfer excess energy to charging stations to charge vehicles.

[0026] Based on the above principles:

[0027] In the first aspect, the different current flow directions between the distribution box and the power grid will cause a change in the first phase difference between the first voltage phase and the first current phase. Therefore, the sufficiency of electrical energy in the energy storage device can be determined based on the first phase difference. If the energy storage device is deemed sufficient based on the first phase difference, the distribution box can automatically start supplying power to the charging pile to charge the vehicle. If the energy storage device is deemed insufficient based on the first phase difference, the user can be prompted to decide whether to purchase electricity from the grid immediately to charge the vehicle or wait until the energy storage device is fully charged before charging the vehicle.

[0028] Secondly, before the power distribution box charges the vehicle through the charging pile, there is a weak detection current between the power distribution box and the charging pile. Due to the different current flow directions between the power distribution box and the power grid, the second phase difference between the second voltage phase and the second current phase will change. Therefore, the energy level in the energy storage device can be determined based on the second phase difference. If the energy level in the energy storage device is determined to be sufficient based on the second phase difference, the power distribution box can automatically start supplying power to the charging pile to charge the vehicle. If the energy level in the energy storage device is determined to be insufficient based on the second phase difference, the user can be prompted to decide whether to purchase electricity from the power grid to charge the vehicle immediately or wait until the energy level in the energy storage device is sufficient before charging the vehicle.

[0029] Thirdly, the current between the distribution box and the load always flows from the distribution box to the load. Due to the different current flow directions between the distribution box and the power grid, the third phase difference between the second voltage phase and the third current phase will change. Therefore, the sufficiency of the energy in the energy storage device can be determined based on this third phase difference. If the energy in the energy storage device is sufficient based on the third phase difference, the distribution box can automatically start supplying power to the charging station to charge the vehicle. If the energy in the energy storage device is insufficient based on the third phase difference, the user can be prompted to decide whether to purchase electricity from the grid immediately to charge the vehicle, or wait until the energy in the energy storage device is sufficient before charging the vehicle.

[0030] Based on the above analysis, it can be seen that the charging interaction system of this utility model can effectively know the storage status of the power in the energy storage device, thereby making it convenient for users to decide whether to charge the vehicle immediately. Attached Figure Description

[0031] Figure 1 This is a topology diagram of the charging interaction system in Embodiment 1 of this utility model;

[0032] Figure 2 This is a topology diagram of the processor in Embodiment 1 of this utility model;

[0033] Figure 3 This is a flowchart of the charging interaction system in Embodiment 1 of this utility model;

[0034] Figure 4 This is a schematic diagram of the assembly relationship of the first current transformer in Embodiment 1 of this utility model;

[0035] Figure 5 This is a topology diagram of the charging interaction system in Embodiment 2 of this utility model;

[0036] Figure 6 This is a topology diagram of the processor in Embodiment 2 of this utility model;

[0037] Figure 7This is a flowchart of the charging interaction system in Embodiment 2 of this utility model;

[0038] Figure 8 This is a topology diagram of the charging interaction system in Embodiment 3 of this utility model;

[0039] Figure 9 This is a topology diagram of the processor in Embodiment 3 of this utility model;

[0040] Figure 10 This is a flowchart of the charging interaction system in Embodiment 3 of this utility model.

[0041] Figure label:

[0042] 1. Energy storage device; 11. First port; 12. Second port; 2. Distribution box; 21. Third port; 22. Fourth port; 23. Fifth port; 24. Sixth port; 3. Charging pile; 31. Processor; 32. Indication unit; 33. Seventh port; 34. Eighth port; 4. First voltage transformer; 5. First current transformer; 51. First cable; 6. Power generation equipment; 7. Second current transformer; 8. Second voltage transformer; 9. Third current transformer; 100. Power grid; 200. Load; 300. Vehicle. Detailed Implementation

[0043] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0049] Example 1:

[0050] See Figure 1 This embodiment provides a charging interaction system, including a power generation device 6, a storage device 1, a distribution box 2, and a charging pile 3. The power generation device 6 is electrically connected to the storage device 1. The load 200 in the user's home, the storage device 1, and the charging pile 3 are connected in parallel to the distribution box 2. In addition, the distribution box 2 is also electrically connected to the power grid 100.

[0051] Specifically, the energy storage device 1 has at least a first port 11 and a second port 12, the distribution box 2 has at least a third port 21, a fourth port 22, a fifth port 23 and a sixth port 24, and the charging pile 3 has at least a seventh port 33 and an eighth port 34.

[0052] The power generation device 6 can generate electricity using solar energy, biogas, or other methods. The power generation device 6 is electrically connected to the energy storage device 1 via the second port 12, and the electrical energy generated by the power generation device 6 can be transmitted to the energy storage device 1 for storage via the second port 12.

[0053] The first port 11 is electrically connected to the third port 21, and the fourth port 22 is electrically connected to the seventh port 33. The eighth port 34 can be electrically connected to the vehicle 300 to be charged, the sixth port 24 is electrically connected to the load 200, and the fifth port 23 is electrically connected to the power grid 100.

[0054] The energy storage device 1 continuously transmits electrical energy to the distribution box 2 through the first port 11 and the third port 21. The distribution box 2 then continuously supplies electrical energy to the load 200 through the sixth port 24. Therefore, the current between the distribution box 2 and the load 200 always flows from the distribution box 2 to the load 200. If the energy storage device 1 has a large amount of stored energy and there is still surplus after supplying the load 200, the distribution box 2 can transmit the excess energy to the power grid 100 through the fifth port 23 to generate profit by feeding power to the power grid 100. Alternatively, it can supply power to the charging pile 3 through the fourth port 22 and the seventh port 33, thereby enabling the vehicle 300 to start charging. If the energy storage in the energy storage device 1 is insufficient to enable the load 200 to work normally, the distribution box 2 can purchase additional energy from the power grid 100 through the fifth port 23 to meet the normal use of the load 200. At this time, the user can choose to purchase electricity from the power grid 100 to start charging the vehicle 300 immediately, or choose not to charge the vehicle 300 temporarily and charge the vehicle 300 when the energy storage device 1 has a large amount of stored energy.

[0055] However, due to the significant differences in communication protocols between the energy storage device 1 and the charging pile 3, it is impossible to directly and effectively determine whether the energy storage capacity in the energy storage device 1 can meet the usage requirements of the charging pile 3.

[0056] Based on the above-mentioned technical problems, the charging interaction system in this embodiment also includes a first voltage transformer 4 and a first current transformer 5.

[0057] The first voltage transformer 4 is installed between the distribution box 2 and the charging pile 3. More specifically, the first voltage transformer 4 is installed between the fourth port 22 and the seventh port 33. Before the distribution box 2 provides charging current to the charging pile 3, the first voltage transformer 4 can detect the voltage phase between the distribution box 2 and the charging pile 3. At this time, the voltage phase is the first voltage phase.

[0058] The first current transformer 5 is installed between the distribution box 2 and the power grid 100. More specifically, the first current transformer 5 is installed between the fifth port 23 and the power grid 100. The first current transformer 5 can detect the current phase between the distribution box 2 and the power grid 100. At this time, the current phase is the first current phase.

[0059] The difference between the first voltage phase and the first current phase is the first phase difference. Since the direction of the potential difference between the distribution box 2 and the charging pile 3 is unidirectional, the first phase difference can reflect the current flow direction between the distribution box 2 and the power grid 100.

[0060] Specifically, during the installation of the first voltage transformer 4 and the first current transformer 5, a requirement was set for the first phase difference. When the current flow direction between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100, the first phase difference meets the requirement; when the current flow direction between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2, the first phase difference does not meet the requirement.

[0061] In this embodiment, the above requirement is 0°-180°. In other words, if the first phase difference is between 0° and 180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100. If the first phase difference is outside the range of 0°-180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0062] In some other embodiments, the above requirement may also be 180°-360°. In other words, in this part of the embodiment, if the first phase difference is between 180° and 360°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100; if the first phase difference is outside the 180°-360° range, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0063] If the current flow direction between the distribution box 2 and the power grid 100 is determined to be from the distribution box 2 to the power grid 100 based on the first phase difference, it indicates that the energy storage device 1 has a lot of power and there is still a surplus of power after meeting the power demand of the load 200. At this time, the distribution box 2 can automatically start to provide charging current to the charging pile 3 and immediately start charging the vehicle 300.

[0064] If, based on the first phase difference, the current flow between distribution box 2 and the power grid 100 is determined to be from the power grid 100 to distribution box 2, it indicates that the energy in the energy storage device 1 is insufficient to meet the normal operation of the load 200, and distribution box 2 needs to purchase power from the power grid 100. At this point, the user needs to determine whether to purchase further power from the power grid 100 to immediately begin charging the vehicle 300, or to wait until the energy in the energy storage device 1 is sufficient before starting to charge the vehicle 300.

[0065] In other words, this embodiment determines the current flow direction between the distribution box 2 and the power grid 100 through the first phase difference, thereby obtaining the power status in the energy storage device 1, and determining whether the power status in the energy storage device 1 meets the usage requirements of the charging pile 3.

[0066] See Figure 2 Based on the above principle, in this embodiment, the charging pile 3 is equipped with a processor 31, and the first voltage transformer 4 and the first current transformer 5 are electrically connected to the processor 31. The first voltage transformer 4 transmits the first voltage phase to the processor 31 in real time, and the first current transformer 5 transmits the first current phase to the processor 31 in real time. Thus, the processor 31 can obtain the first phase difference in real time and thereby obtain the power status of the energy storage device 1 in real time.

[0067] Preferably, the charging pile 3 is equipped with a prompting unit 32, which is electrically connected to the processor 31. The processor 31 can transmit the power status information of the energy storage device 1 to the prompting unit 32 to prompt the user, and the prompting methods include, but are not limited to, voice prompts and text prompts.

[0068] In this embodiment, the fifth port 23 and the power grid 100 are electrically connected via the first cable 51. See also Figure 4 To facilitate the installation of the first current transformer 5, the first current transformer 5 adopts an open-type current transformer. The first current transformer 5 can be opened and closed by rotation, so that the first cable 51 can be passed through the middle of the first current transformer 5.

[0069] See Figure 3 In this embodiment, the specific working process of the charging interaction system is as follows:

[0070] Step 101: First, the user determines whether to activate the charging interaction system;

[0071] If not, the distribution box 2 will directly start providing charging current to the charging pile 3, and the charging pile 3 will directly start charging the vehicle 300 until charging is completed.

[0072] If yes, proceed to step 102;

[0073] Step 102: The processor 31 continuously acquires the first voltage phase and the first current phase;

[0074] Step 103: The processor 31 continuously obtains the first phase difference based on the first voltage phase and the first current phase, and determines whether the first phase difference meets the requirements;

[0075] If the requirements are met, it means that the energy storage device 1 has a large amount of electrical energy stored. The distribution box 2 directly starts to provide charging current to the charging pile 3, and the charging pile 3 directly starts to charge the vehicle 300. On this basis, if there is still excess power in the energy storage device 1, it can feed power to the power grid 100.

[0076] If the requirements are not met, it indicates that the energy storage in the energy storage device 1 is low. The prompting unit 32 will then prompt the user so that the user can decide whether to charge the device.

[0077] If the user decides to charge, the distribution box 2 will purchase more electricity from the power grid 100 and start providing charging current to the charging pile 3, and the charging pile 3 will immediately start charging the vehicle 300.

[0078] If the user decides not to charge, the process jumps back to step 102 until the first phase difference meets the requirements.

[0079] Example 2:

[0080] See Figure 5 This embodiment provides a charging interaction system, including a power generation device 6, a storage device 1, a distribution box 2, and a charging pile 3. The power generation device 6 is electrically connected to the storage device 1. The load 200 in the user's home, the storage device 1, and the charging pile 3 are connected in parallel to the distribution box 2. In addition, the distribution box 2 is also electrically connected to the power grid 100.

[0081] Specifically, the energy storage device 1 has a first port 11 and a second port 12, the distribution box 2 has a third port 21, a fourth port 22, a fifth port 23 and a sixth port 24, and the charging pile 3 has a seventh port 33 and an eighth port 34.

[0082] The power generation device 6 can generate electricity using solar energy, biogas, or other methods. The power generation device 6 is electrically connected to the energy storage device 1 via the second port 12, and the electrical energy generated by the power generation device 6 can be transmitted to the energy storage device 1 for storage via the second port 12.

[0083] The first port 11 is electrically connected to the third port 21, and the fourth port 22 is electrically connected to the seventh port 33. The eighth port 34 can be electrically connected to the vehicle 300 to be charged, the sixth port 24 is electrically connected to the load 200, and the fifth port 23 is electrically connected to the power grid 100.

[0084] The energy storage device 1 continuously transmits electrical energy to the distribution box 2 through the first port 11 and the third port 21. The distribution box 2 then continuously supplies electrical energy to the load 200 through the sixth port 24. Therefore, the current between the distribution box 2 and the load 200 always flows from the distribution box 2 to the load 200. If the energy storage device 1 has a large amount of stored energy and there is still surplus after supplying the load 200, the distribution box 2 can transmit the excess energy to the power grid 100 through the fifth port 23 to generate profit by feeding power to the power grid 100. Alternatively, it can supply power to the charging pile 3 through the fourth port 22 and the seventh port 33, thereby enabling the vehicle 300 to start charging. If the energy storage in the energy storage device 1 is insufficient to enable the load 200 to work normally, the distribution box 2 can purchase additional energy from the power grid 100 through the fifth port 23 to meet the normal use of the load 200. At this time, the user can choose to purchase electricity from the power grid 100 to start charging the vehicle 300 immediately, or choose not to charge the vehicle 300 temporarily and charge the vehicle 300 when the energy storage device 1 has a large amount of stored energy.

[0085] However, due to the significant differences in communication protocols between the energy storage device 1 and the charging pile 3, it is impossible to directly and effectively determine whether the energy storage capacity in the energy storage device 1 can meet the usage requirements of the charging pile 3.

[0086] Based on the above-mentioned technical problems, the charging interaction system in this embodiment also includes a second current transformer 7 and a second voltage transformer 8.

[0087] Specifically, the second current transformer 7 is installed between the distribution box 2 and the charging pile 3, and more specifically, between the fourth port 22 and the seventh port 33. Before the distribution box 2 provides charging current to the charging pile 3, there is a weak detection current between the fourth port 22 and the seventh port 33. The second current transformer 7 can obtain the current phase of this detection current, i.e., the second current phase.

[0088] The second voltage transformer 8 is installed between the distribution box 2 and the power grid 100. Specifically, the second voltage transformer 8 is installed between the fifth port 23 and the power grid 100. The second voltage transformer 8 can detect the voltage phase between the distribution box 2 and the power grid 100. At this time, the voltage phase is the second voltage phase.

[0089] Since the direction of current flow detected between distribution box 2 and charging pile 3 is unique, the difference between the second voltage phase and the second current phase, i.e. the second phase difference, can reflect the direction of current flow between distribution box 2 and power grid 100.

[0090] Specifically, a requirement was set for the second phase difference during the installation of the second current transformer 7 and the second voltage transformer 8. When the current flow direction between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100, the second phase difference meets the requirement; when the current flow direction between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2, the second phase difference does not meet the requirement.

[0091] In this embodiment, the above requirement is 0°-180°. In other words, if the second phase difference is between 0° and 180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100. If the second phase difference is outside the range of 0°-180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0092] In some other embodiments, the above requirement may also be 180°-360°. In other words, in this part of the embodiment, if the second phase difference is between 180° and 360°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100; if the second phase difference is outside the 180°-360° range, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0093] If the current flow direction between the distribution box 2 and the power grid 100 is determined to be from the distribution box 2 to the power grid 100 based on the second phase difference, it indicates that the energy storage device 1 has a lot of power and there is still a surplus of power after meeting the power demand of the load 200. At this time, the distribution box 2 can automatically start to provide charging current to the charging pile 3 and immediately start charging the vehicle 300.

[0094] If, based on the second phase difference, the current flow between distribution box 2 and the power grid 100 is determined to be from the power grid 100 to distribution box 2, it indicates that the energy in the energy storage device 1 is insufficient to meet the normal operation of the load 200, and distribution box 2 needs to purchase power from the power grid 100. At this point, the user needs to determine whether to purchase further power from the power grid 100 to immediately begin charging the vehicle 300, or to wait until the energy in the energy storage device 1 is sufficient before starting to charge the vehicle 300.

[0095] See Figure 6 Based on the above principle, in this embodiment, the charging pile 3 is equipped with a processor 31, and the second current transformer 7 and the second voltage transformer 8 are electrically connected to the processor 31. The second voltage transformer 8 transmits the second voltage phase to the processor 31 in real time, and the second current transformer 7 transmits the second current phase to the processor 31 in real time. Thus, the processor 31 can obtain the second phase difference in real time and thereby obtain the power status of the energy storage device 1 in real time.

[0096] Preferably, the charging pile 3 is equipped with a prompting unit 32, which is electrically connected to the processor 31. The processor 31 can transmit the power status information of the energy storage device 1 to the prompting unit 32 to prompt the user, and the prompting methods include, but are not limited to, voice prompts and text prompts.

[0097] See Figure 7 In this embodiment, the specific working process of the charging interaction system is as follows:

[0098] Step 201: First, the user determines whether to activate the charging interaction system;

[0099] If not, the distribution box 2 will directly start providing charging current to the charging pile 3, and the charging pile 3 will directly start charging the vehicle 300 until charging is completed.

[0100] If yes, then proceed to step 202;

[0101] Step 202: Processor 31 continuously acquires the second voltage phase and the second current phase;

[0102] Step 203: The processor 31 continuously obtains the second phase difference based on the second voltage phase and the second current phase, and determines whether the second phase difference meets the requirements;

[0103] If the requirements are met, it means that the energy storage device 1 has a large amount of electrical energy stored. The distribution box 2 directly starts to provide charging current to the charging pile 3, and the charging pile 3 directly starts to charge the vehicle 300. On this basis, if there is still excess power in the energy storage device 1, it can feed power to the power grid 100.

[0104] If the requirements are not met, it indicates that the energy storage in the energy storage device 1 is low. The prompting unit 32 will then prompt the user so that the user can decide whether to charge the device.

[0105] If the user decides to charge, the distribution box 2 will purchase more electricity from the power grid 100 and start providing charging current to the charging pile 3, and the charging pile 3 will immediately start charging the vehicle 300.

[0106] If the user decides not to charge, the process jumps back to step 202 until the second phase difference meets the requirements.

[0107] Example 3:

[0108] See Figure 8 This embodiment provides a charging interaction system, including a power generation device 6, a storage device 1, a distribution box 2, and a charging pile 3. The power generation device 6 is electrically connected to the storage device 1. The load 200 in the user's home, the storage device 1, and the charging pile 3 are connected in parallel to the distribution box 2. In addition, the distribution box 2 is also electrically connected to the power grid 100.

[0109] Specifically, the energy storage device 1 has a first port 11 and a second port 12, the distribution box 2 has a third port 21, a fourth port 22, a fifth port 23 and a sixth port 24, and the charging pile 3 has a seventh port 33 and an eighth port 34.

[0110] The power generation device 6 can generate electricity using solar energy, biogas, or other methods. The power generation device 6 is electrically connected to the energy storage device 1 via the second port 12, and the electrical energy generated by the power generation device 6 can be transmitted to the energy storage device 1 for storage via the second port 12.

[0111] The first port 11 is electrically connected to the third port 21, and the fourth port 22 is electrically connected to the seventh port 33. The eighth port 34 can be electrically connected to the vehicle 300 to be charged, the sixth port 24 is electrically connected to the load 200, and the fifth port 23 is electrically connected to the power grid 100.

[0112] The energy storage device 1 continuously transmits electrical energy to the distribution box 2 through the first port 11 and the third port 21. The distribution box 2 then continuously supplies electrical energy to the load 200 through the sixth port 24. Therefore, the current between the distribution box 2 and the load 200 always flows from the distribution box 2 to the load 200. If the energy storage device 1 has a large amount of stored energy and there is still surplus after supplying the load 200, the distribution box 2 can transmit the excess energy to the power grid 100 through the fifth port 23 to generate profit by feeding power to the power grid 100. Alternatively, it can supply power to the charging pile 3 through the fourth port 22 and the seventh port 33, thereby enabling the vehicle 300 to start charging. If the energy storage in the energy storage device 1 is insufficient to enable the load 200 to work normally, the distribution box 2 can purchase additional energy from the power grid 100 through the fifth port 23 to meet the normal use of the load 200. At this time, the user can choose to purchase electricity from the power grid 100 to start charging the vehicle 300 immediately, or choose not to charge the vehicle 300 temporarily and charge the vehicle 300 when the energy storage device 1 has a large amount of stored energy.

[0113] However, due to the significant differences in communication protocols between the energy storage device 1 and the charging pile 3, it is impossible to directly and effectively determine whether the energy storage capacity in the energy storage device 1 can meet the usage requirements of the charging pile 3.

[0114] Based on the above-mentioned technical problems, the charging interaction system in this embodiment also includes a third current transformer 9 and a second voltage transformer 8.

[0115] Specifically, the third current transformer 9 is installed between the load 200 and the distribution box 2, and more specifically, between the load 200 and the sixth port 24. The third current transformer 9 can obtain the current phase between the load 200 and the distribution box 2, which is the third current phase.

[0116] The second voltage transformer 8 is installed between the distribution box 2 and the power grid 100. Specifically, the second voltage transformer 8 is installed between the fifth port 23 and the power grid 100. The second voltage transformer 8 can detect the voltage phase between the distribution box 2 and the power grid 100. At this time, the voltage phase is the second voltage phase.

[0117] Since the current flow direction between the load 200 and the distribution box 2 is unique, the difference between the second voltage phase and the third current phase, i.e. the third phase difference, can reflect the current flow direction between the distribution box 2 and the power grid 100.

[0118] Specifically, a requirement was set for the third phase difference during the installation of the third current transformer 9 and the second voltage transformer 8. When the current flow direction between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100, the third phase difference meets the requirement; when the current flow direction between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2, the third phase difference does not meet the requirement.

[0119] In this embodiment, the above requirement is 0°-180°. In other words, if the third phase difference is between 0° and 180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100. If the third phase difference is outside the range of 0°-180°, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0120] In some other embodiments, the above requirement may also be 180°-360°. In other words, in this part of the embodiment, if the third phase difference is between 180° and 360°, it means that the current flow between the distribution box 2 and the power grid 100 is from the distribution box 2 to the power grid 100; if the third phase difference is outside the 180°-360° range, it means that the current flow between the distribution box 2 and the power grid 100 is from the power grid 100 to the distribution box 2.

[0121] If the current flow direction between the distribution box 2 and the power grid 100 is determined to be from the distribution box 2 to the power grid 100 based on the third phase difference, it indicates that the energy storage device 1 has a lot of power and there is still a surplus of power after meeting the power demand of the load 200. At this time, the distribution box 2 can automatically start to provide charging current to the charging pile 3 and immediately start charging the vehicle 300.

[0122] If, based on the third phase difference, the current flow between distribution box 2 and the power grid 100 is determined to be from the power grid 100 to distribution box 2, it indicates that the power in the energy storage device 1 is insufficient to meet the normal operation of the load 200, and distribution box 2 needs to purchase power from the power grid 100. At this point, the user needs to determine whether to purchase further power from the power grid 100 to immediately begin charging the vehicle 300, or to wait until the energy in the energy storage device 1 is sufficient before starting to charge the vehicle 300.

[0123] See Figure 9 Based on the above principle, in this embodiment, the charging pile 3 is equipped with a processor 31, and the third current transformer 9 and the second voltage transformer 8 are electrically connected to the processor 31. The second voltage transformer 8 transmits the second voltage phase to the processor 31 in real time, and the third current transformer 9 transmits the third current phase to the processor 31 in real time. Thus, the processor 31 can obtain the third phase difference in real time and thereby obtain the power status of the energy storage device 1 in real time.

[0124] Preferably, the charging pile 3 is equipped with a prompting unit 32, which is electrically connected to the processor 31. The processor 31 can transmit the power status information of the energy storage device 1 to the prompting unit 32 to prompt the user, and the prompting methods include, but are not limited to, voice prompts and text prompts.

[0125] See Figure 10 In this embodiment, the specific working process of the charging interaction system is as follows:

[0126] Step 301: First, the user determines whether to activate the charging interaction system;

[0127] If not, the distribution box 2 will directly start providing charging current to the charging pile 3, and the charging pile 3 will directly start charging the vehicle 300 until charging is completed.

[0128] If yes, proceed to step 302;

[0129] Step 302: Processor 31 continuously acquires the second voltage phase and the third current phase;

[0130] Step 203: The processor 31 continuously obtains the third phase difference based on the second voltage phase and the third current phase, and determines whether the third phase difference meets the requirements;

[0131] If the requirements are met, it means that the energy storage device 1 has a large amount of electrical energy stored. The distribution box 2 directly starts to provide charging current to the charging pile 3, and the charging pile 3 directly starts to charge the vehicle 300. On this basis, if there is still excess power in the energy storage device 1, it can feed power to the power grid 100.

[0132] If the requirements are not met, it indicates that the energy storage in the energy storage device 1 is low. The prompting unit 32 will then prompt the user so that the user can decide whether to charge the device.

[0133] If the user decides to charge, the distribution box 2 will purchase more electricity from the power grid 100 and start providing charging current to the charging pile 3, and the charging pile 3 will immediately start charging the vehicle 300.

[0134] If the user decides not to charge, the process jumps back to step 302 until the third phase difference meets the requirements.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A charging interaction system, characterized in that, The device includes a power storage device (1), a power distribution box (2), and a charging pile (3). The power storage device (1) and the charging pile (3) are connected in parallel to the power distribution box (2). The power storage device (1) is used to supply power to the power distribution box (2). The power distribution box (2) is electrically connected to the power grid (100) to allow the power distribution box (2) to feed power to the power grid (100) or the power grid (100) to supply power to the power distribution box (2). The charging interaction system also includes a first voltage transformer (4) and a first current transformer (5); The first voltage transformer (4) is installed between the charging pile (3) and the distribution box (2) to detect the first voltage phase between the distribution box (2) and the charging pile (3); The first current transformer (5) is installed between the distribution box (2) and the power grid (100) to detect the first current phase between the distribution box (2) and the power grid (100).

2. The charging interaction system according to claim 1, characterized in that, The charging pile (3) is equipped with a processor (31), and the first voltage transformer (4) and the first current transformer (5) are electrically connected to the processor (31) to allow the processor (31) to obtain the first phase difference between the first voltage phase and the first current phase, and to obtain the power status of the energy storage device (1) based on the first phase difference.

3. The charging interaction system according to claim 2, characterized in that, The charging pile (3) is equipped with a prompting unit (32), which is electrically connected to the processor (31) to obtain the power status of the energy storage device (1) and provide a prompt.

4. The charging interaction system according to claim 1, characterized in that, The charging interaction system also includes a power generation device (6), and the energy storage device (1) is electrically connected to the power generation device (6).

5. A charging interaction system, characterized in that, The device includes a power storage device (1), a power distribution box (2), and a charging pile (3). The power storage device (1) and the charging pile (3) are connected in parallel to the power distribution box (2). The power storage device (1) is used to supply power to the power distribution box (2). The power distribution box (2) is electrically connected to the power grid (100) to allow the power distribution box (2) to feed power to the power grid (100) or the power grid (100) to supply power to the power distribution box (2). The charging interaction system also includes a second current transformer (7) and a second voltage transformer (8); The second current transformer (7) is installed between the distribution box (2) and the charging pile (3) to detect the second current phase between the distribution box (2) and the charging pile (3); The second voltage transformer (8) is installed between the distribution box (2) and the power grid (100) to detect the second voltage phase between the distribution box (2) and the power grid (100).

6. The charging interaction system according to claim 5, characterized in that, The charging pile (3) is equipped with a processor (31), and the second current transformer (7) and the second voltage transformer (8) are electrically connected to the processor (31) to allow the processor (31) to obtain the second phase difference between the second voltage phase and the second current phase, and to obtain the power status of the energy storage device (1) based on the second phase difference.

7. The charging interaction system according to claim 6, characterized in that, The charging pile (3) is equipped with a prompting unit (32), which is electrically connected to the processor (31) to obtain the power status of the energy storage device (1) and provide a prompt.

8. The charging interaction system according to claim 5, characterized in that, The charging interaction system also includes a power generation device (6), which is electrically connected to the energy storage device (1).

9. A charging interaction system, characterized in that, Includes a power storage device (1), a power distribution box (2), and a charging pile (3). The load (200), the power storage device (1), and the charging pile (3) are connected in parallel to the power distribution box (2). The power storage device (1) is used to supply power to the power distribution box (2), and the power distribution box (2) is used to supply power to the load (200). The power distribution box (2) is electrically connected to the power grid (100) to allow the power distribution box (2) to feed power to the power grid (100) or the power grid (100) to supply power to the power distribution box (2). The charging interaction system also includes a second voltage transformer (8) and a third current transformer (9); The second voltage transformer (8) is installed between the distribution box (2) and the power grid (100) to detect the second voltage phase between the distribution box (2) and the power grid (100); The third current transformer (9) is installed between the distribution box (2) and the load (200) to detect the third current phase between the distribution box (2) and the load (200).

10. The charging interaction system according to claim 9, characterized in that, The charging pile (3) is equipped with a processor (31), and the second voltage transformer (8) and the third current transformer (9) are electrically connected to the processor (31) to allow the processor (31) to obtain the third phase difference between the second voltage phase and the third current phase, and to obtain the power status of the energy storage device (1) based on the third phase difference.

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