Mobile power supply and power distribution system

Abstract

The utility model relates to the technical field of electricity utilization, in particular to a mobile power supply and a power distribution system. The mobile power supply comprises an energy storage module, a first charging and discharging module and a second charging and discharging module, the first charging and discharging module comprises a first connecting end and a second connecting end; the first connecting end is connected with the energy storage module, and the second connecting end is used for being connected with a vehicle power battery; the second charging and discharging module comprises a third connecting end, a fourth connecting end and a fifth connecting end; the third connecting end is connected with the energy storage module, the fourth connecting end is used for being connected with a household distribution box, and the fifth connecting end is used for being connected with external electric equipment. According to the technical scheme of the utility model, bidirectional electric power butt joint between the vehicle power battery and the household distribution box is realized, the flexibility and the convenience of a power supply mode are improved, the power supply device can be flexibly used in outdoor scenes, and the user experience is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity use, in particular to a mobile power supply and a power distribution system. Background Art

[0002] In existing technologies, home power distribution systems and electric vehicle charging systems are typically independent. Home power distribution systems rely on the grid for power, while electric vehicles are charged via charging stations. In some cases, an electric vehicle's power battery can power specific household appliances, but this typically requires specialized conversion equipment, and this power supply method offers limited flexibility and convenience. For example, a V2L (Vehicle to Load) system uses an onboard inverter to output AC power to external devices; a home energy storage system connects to the home grid via a fixed battery pack. Consequently, existing V2L systems only support one-way discharge and cannot reversely charge the vehicle via an external mobile power source. Home energy storage systems are fixed installations and cannot be flexibly used in outdoor scenarios. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a mobile power supply and power distribution system, which realizes two-way power connection between the vehicle power battery and the household distribution box, improves the flexibility and convenience of the power supply method, can be flexibly used in outdoor scenes, and thus improves the user experience.

[0004] In a first aspect, the present invention provides a mobile power supply, comprising:

[0005] An energy storage module, a first charge-discharge module, and a second charge-discharge module;

[0006] The first charging and discharging module includes a first connecting end and a second connecting end; the first connecting end is connected to the energy storage module, and the second connecting end is used to connect to the vehicle power battery;

[0007] The second charge and discharge module includes a third connection terminal, a fourth connection terminal and a fifth connection terminal;

[0008] The third connection end is connected to the energy storage module, the fourth connection end is used to connect to a household distribution box, and the fifth connection end is used to connect to an external electrical device.

[0009] In some embodiments, the first charge and discharge module includes a first switch, a DC / DC converter, and a second switch;

[0010] A first end of the first switch is connected to the first connection end, a second end of the first switch is connected to the first end of the DC / DC converter, a second end of the DC / DC converter is connected to the first end of the second switch, and a second end of the second switch is connected to the second connection end.

[0011] In some embodiments, the second charge and discharge module includes a third switch, an AC / DC bidirectional converter, and a fourth switch;

[0012] A first end of the third switch is connected to the third connection end, a second end of the third switch is connected to the first end of the AC / DC bidirectional converter, a second end of the AC / DC bidirectional converter is connected to the fourth connection end, a third end of the AC / DC bidirectional converter is connected to the first end of the fourth switch, and a second end of the fourth switch is connected to the fifth connection end.

[0013] In some embodiments, the mobile power supply further comprises:

[0014] A shell, wherein the energy storage module, the first charge and discharge module and the second charge and discharge module are located in the shell.

[0015] In some embodiments, a first interface is provided on the shell, the first interface is connected to the second connection end of the first charging and discharging module, and the first interface is used to connect to the vehicle power battery.

[0016] In some embodiments, a second interface is provided on the shell, the second interface is connected to the fourth connection end of the second charging and discharging module, and the second interface is used to connect to the household distribution box.

[0017] In some embodiments, a third interface is provided on the shell, the third interface is connected to the fifth connection end of the second charging and discharging module, and the third interface is used to connect to the external electrical device.

[0018] In a second aspect, the present invention further provides a power distribution system comprising:

[0019] A vehicle power battery, a household distribution box, and a mobile power supply as described in the first aspect.

[0020] In some embodiments, the household distribution box includes a fifth switch and a sixth switch;

[0021] The first end of the fifth switch is connected to the power grid, and the second end of the fifth switch is connected to the distribution bus; the first end of the sixth switch is connected to the fourth connection end of the second charge and discharge module, and the second end of the sixth switch is connected to the distribution bus.

[0022] In some embodiments, the distribution bus is connected to household loads.

[0023] The technical solution provided by the embodiment of the utility model has the following advantages compared with the prior art:

[0024] The mobile power supply provided by the embodiment of the present invention includes: an energy storage module, a first charging and discharging module, and a second charging and discharging module; the first charging and discharging module includes a first connection end and a second connection end; the first connection end is connected to the energy storage module, and the second connection end is used to connect to the vehicle power battery; the second charging and discharging module includes a third connection end, a fourth connection end, and a fifth connection end; the third connection end is connected to the energy storage module, the fourth connection end is used to connect to the home distribution box, and the fifth connection end is used to connect to external power devices. The vehicle power battery can be bidirectionally charged and discharged with the mobile power supply, and the home distribution box can be bidirectionally charged and discharged with the mobile power supply, thereby realizing bidirectional docking between the vehicle power battery and the home distribution box. When the home power outage occurs and the home wants to use the power of the vehicle power battery, the vehicle power battery can be discharged to the home through the mobile power supply. In outdoor scenarios, the mobile power supply can supply energy to external power devices. In this way, bidirectional power docking between the vehicle power battery and the home distribution box is realized, the flexibility and convenience of the power supply method are improved, and it can be flexibly used in outdoor scenarios, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 A schematic structural diagram of a mobile power supply provided by an embodiment of the present utility model;

[0028] Figure 2 A schematic structural diagram of another mobile power supply provided by an embodiment of the present utility model;

[0029] Figure 3 A schematic diagram of the structure of another mobile power supply provided by an embodiment of the utility model

[0030] Figure 4 A schematic structural diagram of a power distribution system provided in an embodiment of the present utility model.

[0031] Explanation of the accompanying symbols: 10. Energy storage module; 11. First charging and discharging module; 111. First switch; 112. DC / DC converter; 113. Second switch; 12. Second charging and discharging module; 121. Third switch; 122. AC / DC bidirectional converter; 123. Fourth switch; 13. Vehicle power battery; 14. Household distribution box; 141. Fifth switch; 142. Sixth switch; 15. External electrical equipment; 16. Housing; 161. First interface; 162. Second interface; 163. Second interface; 17. Distribution bus; 18. Household load; 19. Mobile power supply; 20. Power grid. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] The mobile power supply provided by the embodiment of the present invention can bidirectionally charge and discharge the vehicle power battery with the mobile power supply, and the household distribution box can bidirectionally charge and discharge the vehicle power battery with the mobile power supply, thereby realizing bidirectional docking between the vehicle power battery and the household distribution box. When the home power outage occurs and you want to use the power of the vehicle power battery, the vehicle power battery can discharge the power to the home through the mobile power supply. In outdoor scenarios, the mobile power supply can supply energy to external electrical equipment. In this way, bidirectional power docking between the vehicle power battery and the household distribution box is realized, which improves the flexibility and convenience of the power supply method and can be flexibly used in outdoor scenarios, thereby improving the user experience.

[0035] The mobile power supply and power distribution system provided by the embodiments of the present invention are exemplarily described below with reference to the accompanying drawings.

[0036] Figure 1 This is a schematic diagram of the structure of a mobile power supply provided by an embodiment of the present utility model. Figure 1As shown, the mobile power supply 19 includes: an energy storage module 10, a first charging and discharging module 11 and a second charging and discharging module 12; the first charging and discharging module 11 includes a first connection terminal A1 and a second connection terminal A2; the first connection terminal A1 is connected to the energy storage module 10, and the second connection terminal A2 is used to connect to the vehicle power battery 13; the second charging and discharging module 12 includes a third connection terminal A3, a fourth connection terminal A4 and a fifth connection terminal A5; the third connection terminal A3 is connected to the energy storage module 10, the fourth connection terminal A4 is used to connect to the household distribution box 14, and the fifth connection terminal A5 is used to connect to the external power device 15.

[0037] Specifically, the energy storage module 10 can supply power to the vehicle power battery 13 through the first charge and discharge module 11, and the vehicle power battery 13 can also charge the energy storage module 10 through the first charge and discharge module 11; the energy storage module 10 can supply power to the household distribution box 14 through the second charge and discharge module 12, and the household distribution box 14 can also charge the energy storage module 10 through the second charge and discharge module 12; and, the energy storage module 10 can also supply power to the external electrical equipment 15 through the second charge and discharge module 12.

[0038] As a result, the vehicle power battery 13 can be bidirectionally charged and discharged with the mobile power supply 19, and the home distribution box 14 can be bidirectionally charged and discharged with the mobile power supply 19, thereby achieving bidirectional connection between the vehicle power battery 13 and the home distribution box 14. When the home power outage occurs and the vehicle power battery 13 needs to be used, the vehicle power battery 13 can be discharged to the home through the mobile power supply 19. In outdoor scenarios, the mobile power supply can provide energy to external power devices 15.

[0039] The mobile power supply provided in the embodiment of the present invention can realize bidirectional energy flow between home-mobile power supply-car. Compared with the existing technology, it can cover more diverse usage scenarios and realize bidirectional energy flow between vehicle and home by using the mobile power supply as an intermediate medium.

[0040] The mobile power supply provided by the embodiment of the present invention includes: an energy storage module, a first charging and discharging module, and a second charging and discharging module; the first charging and discharging module includes a first connection end and a second connection end; the first connection end is connected to the energy storage module, and the second connection end is used to connect to the vehicle power battery; the second charging and discharging module includes a third connection end, a fourth connection end, and a fifth connection end; the third connection end is connected to the energy storage module, the fourth connection end is used to connect to the home distribution box, and the fifth connection end is used to connect to external power devices. The vehicle power battery can be bidirectionally charged and discharged with the mobile power supply, and the home distribution box can be bidirectionally charged and discharged with the mobile power supply, thereby achieving bidirectional docking between the vehicle power battery and the home distribution box. When the home power outage occurs and the home wants to use the power of the vehicle power battery, the vehicle power battery 13 can be discharged to the home through the mobile power supply. In outdoor scenarios, the mobile power supply can supply energy to the external power device 15. In this way, bidirectional power docking between the vehicle power battery and the home distribution box is achieved, which improves the flexibility and convenience of the power supply method and can be flexibly used in outdoor scenarios, thereby improving the user experience.

[0041] In some embodiments, Figure 2 This is a schematic diagram of the structure of another mobile power supply provided by the embodiment of the present utility model. Figure 1 and Figure 2 As shown, the first charge and discharge module 11 includes a first switch 111, a DC / DC converter 112 and a second switch 113;

[0042] The first end B1 of the first switch 111 is connected to the first connection end A1, the second end B2 of the first switch 111 is connected to the first end C1 of the DC / DC converter 112, the second end C2 of the DC / DC converter 112 is connected to the first end D1 of the second switch 113, and the second end D2 of the second switch 113 is connected to the second connection end A2.

[0043] Specifically, when the vehicle power battery 13 is running low or nearly dead, the first switch 111 and the second switch 113 are closed, and the first connection end of the first charging and discharging module 11 is connected to the vehicle power battery 13, enabling the mobile power supply to supply power to the vehicle power battery 13. For example, before a vehicle begins driving outdoors, a fully charged mobile power supply can be placed on the vehicle. During outdoor driving, if the vehicle power battery 13 is running low or nearly dead and there is no vehicle charging station, the mobile power supply can be used to supply power to the vehicle power battery 13 to ensure normal operation of the vehicle. Conversely, when the mobile power supply is running low, the vehicle power battery 13 can be used to charge the mobile power supply.

[0044] In some embodiments, as Figure 1 and 2As shown, the second charge and discharge module 12 includes a third switch 121, an AC / DC bidirectional converter 122 and a fourth switch 123;

[0045] The first end E1 of the third switch 121 is connected to the third connection end A3, the second end E2 of the third switch 121 is connected to the first end F1 of the AC / DC bidirectional converter 122, the second end F2 of the AC / DC bidirectional converter 122 is connected to the fourth connection end A4, the third end F3 of the AC / DC bidirectional converter 122 is connected to the first end G1 of the fourth switch 123, and the second end G2 of the fourth switch 123 is connected to the fifth connection end A5.

[0046] Specifically, the first switch 111 and the fourth switch 123 are closed, and the fourth connection end of the second charging and discharging module 12 is connected to the household distribution box 14, so that the mobile power supply can supply power to the household distribution box 14, which can solve the problem that the household cannot be powered normally due to power outages in the power grid; conversely, when the power grid normally supplies power to the household distribution box 14, the mobile power supply can also be charged through the household distribution box 14.

[0047] In addition, when the fourth connection terminal of the second charging and discharging module 12 is connected to the external power-consuming device 15, the mobile power supply can also be used to power the external power-consuming device 15. For example, the external power-consuming device 15 can be a mobile electronic device, etc. In outdoor scenarios, the mobile power supply can power the mobile electronic device, thereby solving the problem of insufficient or exhausted power in the mobile electronic device.

[0048] In some embodiments, Figure 3 This is a structural diagram of another mobile power supply provided by the embodiment of the present utility model. Figures 1 to 3 The mobile power supply 19 further includes: a shell 16 , in which the energy storage module 10 , the first charge and discharge module 11 and the second charge and discharge module 12 are located.

[0049] Specifically, the housing 16 can protect the energy storage module 10 , the first charge and discharge module 11 , and the second charge and discharge module 12 .

[0050] In some embodiments, combined Figures 1 to 3 A first interface 161 is provided on the housing 16 . The first interface 161 is connected to the second connection end A2 of the first charge and discharge module 11 . The first interface 161 is used to access the vehicle power battery 13 .

[0051] Specifically, by providing a first interface 161 on the housing 16, a connecting line can be used, one end of the connecting line is connected to the first interface 161, and the other end of the connecting line is connected to the vehicle power battery 13, thereby realizing power transmission between the vehicle power battery 13 and the mobile power supply 19. For example, a power supply interface is provided on the vehicle, and the power supply interface is connected to the vehicle power battery 13, and the mobile power supply 19 can be connected to the power supply interface via a connecting line.

[0052] In some embodiments, combined Figures 1 to 3 The housing 16 is provided with a second interface 162 , which is connected to the fourth connection terminal A4 of the second charge and discharge module 12 . The second interface 162 is used to access the household distribution box 14 .

[0053] Specifically, by setting a second interface 162 on the shell 16, a connecting line can be used, one end of the connecting line is connected to the second interface 162, and the other end of the connecting line can be connected to the household distribution box 14, thereby realizing power transmission between the household distribution box 14 and the mobile power supply 19.

[0054] In some embodiments, combined Figures 1 to 3 The housing 16 is provided with a third interface 163 , and the third interface 163 is connected to the fifth connection terminal A5 of the second charge and discharge module 12 . The third interface 163 is used to access the external electrical device 15 .

[0055] Specifically, by setting a third interface 163 on the shell 16, a connecting line can be used, one end of the connecting line is connected to the third interface 163, and the other end of the connecting line can be connected to the external power device 15, so that the mobile power supply 19 can supply power to the external power device 15.

[0056] Based on the above embodiments, an embodiment of the present utility model further provides a power distribution system. Figure 4 A schematic diagram of a power distribution system provided by an embodiment of the present utility model is shown in FIG. Figure 1 and 4 As shown, the power distribution system includes: a vehicle power battery 13, a household distribution box 14 and a mobile power supply 19 as described in the above embodiment, and therefore has the same or similar beneficial effects, which will not be repeated here.

[0057] In some embodiments, as Figure 4 As shown, the household distribution box 14 includes a fifth switch 141 and a sixth switch 142; the first end M1 of the fifth switch 141 is connected to the power grid, and the second end M2 of the fifth switch 141 is connected to the distribution bus 17; the first end M1 of the sixth switch 142 is connected to the fourth connection end A4 of the second charge and discharge module 12, and the second end N2 of the sixth switch 142 is connected to the distribution bus 17.

[0058] Specifically, when the fifth switch 141 is closed, the power grid 20 can supply power to the distribution bus 17 through the household distribution box 14; when the sixth switch 142 is closed, the distribution bus 17 can supply power to the mobile power supply 19 through the household distribution box 14, or the mobile power supply 19 can supply power to the distribution bus 17 through the household distribution box 14.

[0059] In some embodiments, as Figure 4 As shown, the distribution bus 17 is connected to the household load 18 , thereby providing power to the household load 18 .

[0060] The following is an example description of the application scenario of the power distribution system.

[0061] For households, there are the following power supply scenarios:

[0062] Scenario 1: The grid 20 supplies power to the household load 18 , and the vehicle power battery 13 does not supply power to the household load 18 . At this time, the fifth switch 141 is closed, and the sixth switch 142 is open.

[0063] Scenario 2: The grid 20 and the vehicle power battery 13 jointly supply power to the household load 18 . At this time, the fifth switch 141 and the sixth switch 142 are closed.

[0064] Scenario 3: The power grid 20 does not supply power to the household load 18 , and the vehicle power battery 13 supplies power to the household load 18 . At this time, the fifth switch 141 is opened and the sixth switch 142 is closed.

[0065] For mobile power supplies, there are the following charging and discharging scenarios:

[0066] Scenario 1: The vehicle power battery 13 charges the mobile power supply 19, and the grid 20 does not charge the mobile power supply 19. At this time, the first switch 111 and the second switch 113 are closed, and the third switch 121 and the fourth switch 122 are open.

[0067] Scenario 2: The vehicle power battery 13 does not charge the mobile power supply 19 , and the grid 20 charges the mobile power supply 19 . At this time, the first switch 111 and the second switch 113 are disconnected, and the third switch 121 and the fourth switch 122 are closed.

[0068] Scenario 3: The vehicle power battery 13 and the power grid 20 charge the mobile power supply 19 simultaneously. At this time, the first switch 111, the second switch 113, the third switch 121 and the fourth switch 122 are closed.

[0069] Scenario 4: The mobile power supply 19 has no input function and discharges to the outdoor external electrical device 15. At this time, the first switch 111, the second switch 113 and the sixth switch 142 are opened, and the third switch 121 and the fourth switch 122 are closed.

[0070] For vehicle power batteries, there are the following charging scenarios:

[0071] The mobile power source 19 supplies power to the vehicle power battery 13 . At this time, the first switch 111 and the second switch 113 are closed, and the other switches are open.

[0072] The present invention also provides an electronic device. Figure 4 The first switch 111, the second switch 113, the third switch 121, the fourth switch 123, the fifth switch 141, and the sixth switch 142 are communicatively connected. For example, the first switch 111, the second switch 113, the third switch 121, the fourth switch 123, the fifth switch 141, and the sixth switch 142 may be smart switches, and the electronic device may be, for example, a mobile phone. The electronic device and the smart switch may be communicatively connected via, for example, but not limited to, Bluetooth.

[0073] In addition, communication modules can be respectively set in the mobile power supply, the household distribution box and the vehicle. The power status of the mobile power supply can be transmitted to the electronic device through the communication module, the power status in the household distribution box can be transmitted to the electronic device through the communication module, and the vehicle power battery in the vehicle is transmitted to the electronic device through the communication module. After that, the electronic device controls the first switch, the second switch, the third switch, the fourth switch, the fifth switch and the sixth switch to be turned on or off according to the power consumption of the mobile power supply, the household distribution box and the vehicle power battery, so as to automatically adjust the energy source according to the household electricity consumption demand and the power grid condition, and optimize the energy utilization efficiency.

[0074] Thus, the present invention provides a mobile power supply, power distribution system, and electronic device that achieves bidirectional energy flow from home to mobile power supply to vehicle, expanding the outdoor power usage scenarios of electric vehicle power battery packs. It enables bidirectional connection between electric vehicle power battery packs and home power distribution systems, automatically adjusting energy sources based on household power demand and grid conditions, and optimizing energy efficiency. Compared to existing technologies, the present invention covers a wider range of usage scenarios. The mobile power supply device can be designed as a vehicle-mounted device, not only providing emergency power for the home, but also serving as a mobile power supply in outdoor scenarios. The on / off state of the intelligent switch can be adjusted according to the working scenario, achieving the effect of automated control.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0076] The foregoing description is intended only to provide specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features of the present invention.

Claims

1. A mobile power supply, characterized in that: include: An energy storage module, a first charge-discharge module, a second charge-discharge module and a shell; the energy storage module, the first charge-discharge module and the second charge-discharge module are located in the shell; The first charging and discharging module includes a first connecting end and a second connecting end; the first connecting end is connected to the energy storage module, and the second connecting end is used to connect to the vehicle power battery; The second charge and discharge module includes a third connection terminal, a fourth connection terminal and a fifth connection terminal; The third connection end is connected to the energy storage module, the fourth connection end is used to connect to the household distribution box, and the fifth connection end is used to connect to an external power device; The shell is provided with a first interface, a second interface and a third interface; the second connection end of the first charge and discharge module is connected to the vehicle power battery through the first interface, the fourth connection end of the second charge and discharge module is connected to the household distribution box through the second interface, and the fifth connection end of the second charge and discharge module is connected to the external electrical equipment through the third interface.

2. The mobile power supply according to claim 1, characterized in that: The first charge and discharge module includes a first switch, a DC / DC converter and a second switch; A first end of the first switch is connected to the first connection end, a second end of the first switch is connected to the first end of the DC / DC converter, a second end of the DC / DC converter is connected to the first end of the second switch, and a second end of the second switch is connected to the second connection end.

3. The mobile power supply according to claim 1, characterized in that: The second charge and discharge module includes a third switch, an AC / DC bidirectional converter and a fourth switch; A first end of the third switch is connected to the third connection end, a second end of the third switch is connected to the first end of the AC / DC bidirectional converter, a second end of the AC / DC bidirectional converter is connected to the fourth connection end, a third end of the AC / DC bidirectional converter is connected to the first end of the fourth switch, and a second end of the fourth switch is connected to the fifth connection end.

4. A power distribution system, characterized in that: include: A vehicle power battery, a household distribution box, and a mobile power supply as claimed in any one of claims 1 to 3.

5. The power distribution system according to claim 4, characterized in that: The household distribution box includes a fifth switch and a sixth switch; The first end of the fifth switch is connected to the power grid, and the second end of the fifth switch is connected to the distribution bus; the first end of the sixth switch is connected to the fourth connection end of the second charge and discharge module, and the second end of the sixth switch is connected to the distribution bus.

6. The power distribution system according to claim 5, characterized in that: The distribution bus is connected to household loads.

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