Balcony energy storage inverter box and balcony energy storage charging and power supply cabinet

Abstract

The utility model provides a balcony energy storage inversion box and a balcony energy storage charging and power supply cabinet, the balcony energy storage inversion box comprises a box body, a heat dissipation device, a control device and a bidirectional inverter, the box body is provided with a first port, a containing cavity and a second port which are communicated in a linear sequence, the bidirectional inverter is located in the containing cavity, and the second port is located in the containing cavity. The battery inversion direct current discharging end of the bidirectional inverter is connected with the charging end of the photovoltaic charging battery pack, the discharging end of the photovoltaic charging battery pack is connected with the power supply end of the bidirectional inverter, and the control device comprises a household appliance socket, a charging pile socket and a mains supply cable connector. The balcony energy storage inverter box is provided with a battery pack charging mode, an automobile charging pile mode and a household electrical appliance power supply mode, and when sudden power failure occurs, direct current of the photovoltaic charging battery pack can output alternating current to a household electrical appliance socket or a charging pile socket through the bidirectional inverter to supply power. And normal power supply for household equipment and charging for a new energy automobile under the condition of mains supply power failure are ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of inverter systems, and particularly to a balcony energy storage inverter box and a balcony energy storage charging and power supply cabinet. Background Art

[0002] With the development of energy storage technology, balcony energy storage systems are generally applied to household energy storage scenarios, converting solar energy into electrical energy through a photovoltaic system and storing it in a battery pack to supply power to the household uninterruptedly throughout the day.

[0003] Currently, the main photovoltaic energy storage system is to convert the light energy collected during the day into electrical energy and store it in a battery pack, and then output grid-connected alternating current through a micro-inverter for the household to use throughout the day. When the battery pack has insufficient power and the light is dim, the battery pack can be charged through the mains power, such as the prior art CN207835075U. However, when a sudden power outage occurs, since the micro-inverter device requires grid-connected alternating current for power supply, the micro-inverter device loses its function when the mains power is cut off, and even if the battery pack has power, it cannot supply power to the device, resulting in a poor user experience.

[0004] In addition, with the continuous improvement of the global awareness of environmental protection, new energy vehicles, as an important alternative to traditional fuel vehicles, are being favored by more and more families. When a new energy vehicle needs to be charged, it is generally charged through a vehicle charging pile. Usually, the charging pile requires mains power supply. When a sudden power outage occurs, the new energy vehicle cannot be charged due to the power cut of the charging pile.

[0005] Therefore, there is a need for a balcony energy storage charging and power supply cabinet that can be compatible with power supply for household devices and new energy vehicle charging piles and ensure normal power supply for household devices and vehicle charging piles when the mains power is cut off. Summary of the Utility Model

[0006] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a balcony energy storage inverter box and a balcony energy storage charging and power supply cabinet that can be compatible with power supply for household devices and new energy vehicles and ensure normal power supply for household devices and vehicle charging piles when the mains power is cut off.

[0007] The purpose of the present disclosure is achieved through the following technical solutions:

[0008] A balcony energy storage inverter box for connecting a photovoltaic charging battery pack, the balcony energy storage inverter box includes a box body, a heat dissipation device, and a control device. The box body is provided with a first through port, a containing cavity, and a second through port that are linearly and sequentially connected. The heat dissipation device is located in the containing cavity and is respectively installed on the inner wall of the first through port and the inner wall of the second through port;

[0009] The balcony energy storage inverter box further includes a bidirectional inverter, which is located in the accommodating cavity. The battery inverter DC discharge end of the bidirectional inverter is connected to the charging end of the photovoltaic charging battery pack, and the discharge end of the photovoltaic charging battery pack is connected to the power supply end of the bidirectional inverter, so that when the mains power is cut off, the photovoltaic charging battery pack supplies power to the bidirectional inverter. The control device includes:

[0010] A household electrical appliance socket, which is arranged on the box body and is connected to the first discharge output end of the bidirectional inverter, so that the photovoltaic charging battery pack supplies power to the household electrical appliance socket through the bidirectional inverter;

[0011] A charging pile socket, which is arranged on the box body and is connected to the second discharge output end of the bidirectional inverter, so that the photovoltaic charging battery pack supplies power to the charging pile socket through the bidirectional inverter;

[0012] A mains cable connector, which is arranged on the box body and is used for accessing the mains current. The mains cable connector is connected to the mains inverter input end of the bidirectional inverter to charge the photovoltaic charging battery pack through the mains inverter input end and the battery inverter DC discharge end of the bidirectional inverter.

[0013] In one embodiment, the box body is provided with an electrical connection socket, which is electrically connected to the power supply end of the bidirectional inverter, and the electrical connection socket is also used for connecting to the slave battery pack of the photovoltaic charging battery pack.

[0014] In one embodiment, the box body is further provided with an electrical connection plug, which is electrically connected to the power supply end of the bidirectional inverter, and the electrical connection plug is also used for connecting to any one of the master battery pack and the slave battery pack of the photovoltaic charging battery pack.

[0015] In one embodiment, the control device further includes a circuit breaker, which is arranged on the box body. The first end of the circuit breaker is connected to the mains cable connector, and the second end of the circuit breaker is respectively connected to the mains inverter input end of the bidirectional inverter and the charging pile socket.

[0016] In one embodiment, the control device further includes a key group, which is arranged on the box body and is connected to the charge and discharge control end of the bidirectional inverter to control the on-off states of the photovoltaic charging battery pack, the household electrical appliance socket, the charging pile socket, and the mains cable connector.

[0017] In one embodiment, the button group includes a first mode button, a second mode button, and a third mode button. The first mode button is connected to the home appliance power supply mode enabling terminal of the bidirectional inverter to control the discharge on / off state of the home appliance socket; the second mode button is connected to the electric vehicle charging pile mode enabling terminal of the bidirectional inverter to control the discharge on / off state of the charging pile socket; the third mode button is connected to the battery pack charging mode enabling terminal of the bidirectional inverter to control the charging on / off state of the mains cable connector and the photovoltaic charging battery pack.

[0018] In one embodiment, the control device further includes an indicator light group. The indicator light group is arranged on the box body and is electrically connected to the home appliance socket, the charging pile socket, and the photovoltaic charging battery pack respectively to display the working states of the home appliance socket, the charging pile socket, and the photovoltaic charging battery pack.

[0019] In one embodiment, the indicator light group includes a first mode indicator light, a second mode indicator light, and a third mode indicator light. The first mode indicator light is connected to the home appliance socket to display the on / off state of the home appliance socket; the second mode indicator light is connected to the charging pile socket to display the on / off state of the charging pile socket; the third mode indicator light is connected to the photovoltaic charging battery pack to display the charging on / off state of the photovoltaic charging battery pack.

[0020] A balcony energy storage charging and power supply cabinet includes a photovoltaic charging battery pack and the balcony energy storage inverter box according to any one of the above embodiments. The photovoltaic charging battery pack is detachably installed on the balcony energy storage inverter box, and the power connection end of the photovoltaic charging battery pack is electrically connected to the power connection end of the balcony energy storage inverter box.

[0021] In one embodiment, the photovoltaic charging battery pack includes a main battery pack and a slave battery pack. The main battery pack, the balcony energy storage inverter box, and the slave battery pack are electrically connected in sequence along the vertically downward direction.

[0022] In one embodiment, the slave battery pack is provided with a slave connection plug and a slave connection convex part. The box body is also provided with a fixing groove. The slave connection plug is electrically connected to the electrical connection socket of the box body, and the slave connection convex part is correspondingly arranged in the fixing groove.

[0023] In one embodiment, the box body is also provided with a fixing convex part. The main battery pack is provided with a main connection card slot and a main connection socket. The electrical connection plug of the box body is electrically connected to the main connection socket, and the fixing convex part is correspondingly arranged in the main connection card slot.

[0024] Compared with the prior art, the present disclosure has at least the following advantages:

[0025] The balcony energy storage inverter box can be compatible with the battery pack charging mode, the electric vehicle charging pile mode, and the household appliance power supply mode. When the first mode, i.e., the household appliance power supply mode, is activated, it can supply power to household devices. When the second mode, i.e., the electric vehicle charging pile mode, is activated, it can supply power to the electric vehicle charging pile, enabling new energy vehicles to be connected for charging. When the third mode, i.e., the battery pack charging mode, is activated, it can charge the photovoltaic charging battery pack. In the event of a sudden power outage, the direct current of the photovoltaic charging battery pack can be output as alternating current through the bidirectional inverter to the household appliance socket or the charging pile socket to supply power, ensuring normal power supply to household devices and charging of new energy vehicles in the event of a power outage in the mains electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can also be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of the balcony energy storage inverter box in an embodiment;

[0028] Figure 2 is Figure 1 a partial schematic structural diagram of the balcony energy storage inverter box shown;

[0029] Figure 3 is Figure 1 a schematic diagram of the key group and the indicator light group in the balcony energy storage inverter box shown;

[0030] Figure 4 is Figure 1 a schematic structural diagram of the balcony energy storage inverter box from another angle shown;

[0031] Figure 5 is Figure 1 a bottom view of the balcony energy storage inverter box shown;

[0032] Figure 6 It is an overall internal circuit diagram of the balcony energy storage inverter box in an embodiment;

[0033] Figure 7 It is a schematic structural diagram of the balcony energy storage charging and power supply cabinet in an embodiment;

[0034] Figure 8 It is a schematic structural diagram of the main battery pack in an embodiment;

[0035] Figure 9 It is a schematic structural diagram of the slave battery pack in an embodiment;

[0036] Figure 10 is Figure 9 A schematic structural view of the slave battery pack shown from another angle;

[0037] Figure 11 A schematic structural view of a balcony energy storage charging and power supply cabinet according to another embodiment;

[0038] Figure 12 A schematic structural view of a balcony energy storage charging and power supply cabinet according to other embodiments.

[0039] Reference numerals: 10, balcony energy storage inverter box; 20, photovoltaic charging battery pack; 100, box body; 101, first through port; 102, accommodating cavity; 103, second through port; 104, handle groove; 110, electrical connection socket; 120, electrical connection plug; 130, fixing groove; 140, fixing convex part; 200, heat dissipation device; 300, bidirectional inverter; 400, household appliance socket; 500, charging pile socket; 600, mains cable connector; 700, button group; 710, first mode button; 720, second mode button; 730, third mode button; 800, indicator light group; 810, first mode indicator light; 820, second mode indicator light; 830, third mode indicator light; 840, communication indicator light; 850, error indicator light; 900, circuit breaker; 10A, balcony energy storage charging and power supply cabinet; 21, host battery pack; 21a, main connection card slot; 21b, main connection socket; 22, slave battery pack; 22a, slave connection plug; 22b, slave connection convex part; 22c, slave connection socket; 22d, slave connection card slot; 23, support member; 23a, guard plate; 23b, support foot. Detailed implementation manners

[0040] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the understanding of the disclosure content of the present disclosure is more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate 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 intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this disclosure pertains. The terms used in the description of this disclosure herein are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0043] To better understand the technical solutions and beneficial effects of this disclosure, the following further elaborates on this disclosure in conjunction with specific embodiments:

[0044] Please refer to Figures 1 to 5 , a balcony energy storage inverter box 10, which is used to connect a photovoltaic charging battery pack 20. Specifically, the photovoltaic charging battery pack 20 converts light energy into electrical energy through a photovoltaic system and stores it in the photovoltaic charging battery pack 20 itself. The balcony energy storage inverter box 10 includes a box body 100, a heat dissipation device 200, and a control device. The box body 100 is provided with a first through port 101, a receiving cavity 102, and a second through port 103 that are connected in a linear sequence. The heat dissipation device 200 is located in the receiving cavity 102 and is respectively installed on the inner walls of the first through port 101 and the second through port 103, so that the balcony energy storage inverter box 10 dissipates heat during operation, ensuring that the temperature of the balcony energy storage inverter box 10 during operation is within the normal range;

[0045] The balcony energy storage inverter box 10 further includes a bidirectional inverter 300. The bidirectional inverter 300 is located in the receiving cavity 102 ( Figures 1 to 5 both not shown). The overall circuit diagram is as shown in Figure 6 . The battery-inverting DC discharge end of the bidirectional inverter 300 (i.e., the DC+ end of the bidirectional inverter 300 in Figure 6 ) is connected to the charging end of the photovoltaic charging battery pack 20. The discharge end of the photovoltaic charging battery pack 20 is connected to the power supply end of the bidirectional inverter 300 (i.e., the DC- end of the bidirectional inverter 300 in Figure 6 ), so that the photovoltaic charging battery pack 20 supplies power to the bidirectional inverter 300 when the mains power is cut off. Among them, the battery-inverting DC discharge end DC+ of the bidirectional inverter 300 is used to store the direct current converted from the mains power into the photovoltaic charging battery pack 20 for charging. The power supply end DC- of the bidirectional inverter 300 is used for the photovoltaic charging battery pack 20 to supply power through its discharge end and the power supply end of the bidirectional inverter 300 when the mains power is cut off, so that the direct current of the photovoltaic charging battery pack 20 is converted into alternating current through the bidirectional inverter 300 to supply power to an electric vehicle charging pile or household equipment.

[0046] As shown in Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the control device includes a household electrical appliance socket 400, a charging pile socket 500, and a mains cable connector 600.

[0047] Combined with Figure 6 As shown, the household electrical appliance socket 400 is arranged on the box body 100. The household electrical appliance socket 400 is connected to the first discharge output end of the bidirectional inverter 300 (corresponding to Figure 6 the first branch 1 of the Lout end of the inverter), so that the photovoltaic charging battery pack 20 supplies power to the household electrical appliance socket 400 through the bidirectional inverter 300; the charging pile socket 500 is arranged on the box body 100. The charging pile socket 500 is connected to the second discharge output end of the bidirectional inverter 300 (corresponding to the second branch 2 of Lout), so that the photovoltaic charging battery pack 20 supplies power to the charging pile socket 500 through the bidirectional inverter 300; the mains cable connector 600 is arranged on the box body 100. The mains cable connector 600 is used to access the mains current. The mains cable connector 600 is connected to the mains inverter input end of the bidirectional inverter 300, so as to charge the photovoltaic charging battery pack 20 through the mains inverter input end and the battery inverter DC discharge end of the bidirectional inverter 300.

[0048] In this embodiment, the balcony energy storage inverter box 10 can be compatible with the battery pack charging mode, the electric vehicle charging pile mode, and the household electrical appliance power supply mode. When starting the first mode, i.e., the household electrical appliance power supply mode, it can supply power to household devices; when starting the second mode, i.e., the electric vehicle charging pile mode, it can supply power to the electric vehicle charging pile, so that a new energy vehicle can be connected to charge; when starting the third mode, i.e., the battery pack charging mode, it can charge the photovoltaic charging battery pack 20. When a sudden power outage occurs, the direct current of the photovoltaic charging battery pack 20 can output alternating current through the bidirectional inverter 300 to the household electrical appliance socket 400 or the charging pile socket 500 to supply power, ensuring normal power supply to household devices and charging of new energy vehicles in case of a mains power outage.

[0049] When the balcony energy storage inverter box 10 is used to connect to the photovoltaic charging battery pack 20, as Figure 5 shown, in one embodiment, the box body 100 is provided with an electrical connection socket 110. The electrical connection socket 110 is located at the bottom of the box body 100. The electrical connection socket 110 is electrically connected to the power supply end of the bidirectional inverter 300. The electrical connection socket 110 is also used to connect to the slave battery pack 22 of the photovoltaic charging battery pack 20.

[0050] As Figure 1 shown, in one embodiment, the box body 100 is further provided with an electrical connection plug 120. The electrical connection plug 120 is located at the top of the box body 100. The electrical connection plug 120 is electrically connected to the power supply end of the bidirectional inverter 300. The electrical connection plug 120 is also used to connect to any one of the main battery pack 21 and the slave battery pack 22 of the photovoltaic charging battery pack 20.

[0051] In this embodiment, when the electrical connection plug 120 is directly connected to the host battery pack 21 and the electrical connection socket 110 is connected to the slave battery pack 22, the Figure 7 shown balcony energy storage charging and power supply cabinet can be formed. Of course, the electrical connection plug 120 is not limited to being directly connected to the host battery pack 21. In other embodiments, the electrical connection plug 120 can also be connected to the host battery pack 21 through the slave battery pack 22, and the electrical connection socket 110 is connected to the slave battery pack 22 to form the Figure 11 shown balcony energy storage charging and power supply cabinet.

[0052] In order to enable the user to implement corresponding modes by clicking buttons, such as Figure 1 shown, the control device further includes a button group 700. The button group 700 is arranged on the cabinet 100 and is connected to the charge and discharge control end of the bidirectional inverter 300 to control the on-off states of the photovoltaic charging battery pack 20, the household electrical appliance socket 400, the charging pile socket 500, and the mains cable connector 600.

[0053] Further, as Figure 3 and Figure 6 shown, the button group 700 includes a first mode button 710 (corresponding to S1), a second mode button 720 (corresponding to S2), and a third mode button 730 (corresponding to S3). The first mode button 710 is connected to the household electrical appliance power supply mode enabling end of the bidirectional inverter 300 to control the on-off state of the discharge of the household electrical appliance socket 400; the second mode button 720 is connected to the electric vehicle charging pile mode enabling end of the bidirectional inverter 300 to control the on-off state of the discharge of the charging pile socket 500; the third mode button 730 is connected to the battery pack charging mode enabling end of the bidirectional inverter 300 to control the on-off state of the charging of the mains cable connector 600 and the photovoltaic charging battery pack 20. In this embodiment, the first mode is the household electrical appliance power supply mode, the second mode is the electric vehicle charging pile mode, and the third mode is the battery pack charging mode.

[0054] It can be understood that when the balcony energy storage inverter box 10 and the photovoltaic charging battery pack 20 form a balcony energy storage charging and power supply cabinet and the balcony energy storage charging and power supply cabinet is started, the balcony energy storage inverter box 10 enters the standby mode. When the first mode button 710 is clicked, the household appliance power supply mode is entered. At this time, the DC current of the photovoltaic charging battery pack 20 is input into the balcony energy storage inverter box 10, converted into alternating current by the bidirectional inverter 300, and then output to the household appliance socket 400 to supply power to household appliances. Clicking the first mode button 710 again will exit the household appliance power supply mode and enter the standby mode. When a sudden power outage occurs, there is no current input at the mains cable connector 600, and the photovoltaic charging battery pack 20 can still output alternating current through the bidirectional inverter 300 to supply power to household appliances normally; when the second mode button 720 is clicked, the electric vehicle charging pile mode is entered. At this time, the DC current of the photovoltaic charging battery pack 20 is input into the balcony energy storage inverter box 10, converted into alternating current by the bidirectional inverter 300, and then output to the charging pile socket 500 to supply power to the electric vehicle charging pile. Clicking the second mode button 720 again will exit the electric vehicle charging pile mode and enter the standby mode. When a sudden power outage occurs, the photovoltaic charging battery pack 20 can still output alternating current through the bidirectional inverter 300 to supply power to the electric vehicle charging pile, ensuring that new energy vehicles can be charged normally at any time when charging is required; when the third mode button 730 is clicked, the battery pack charging mode is entered. The mains current is input from the mains cable connector 600, the alternating current is converted into direct current through the bidirectional inverter 300, and the direct current is used to charge the photovoltaic charging battery pack 20 through the bidirectional inverter 300. Clicking the third mode button 730 again will exit the battery pack charging mode and enter the standby mode.

[0055] In order to enable users to intuitively see the working status of the balcony energy storage inverter box 10 after clicking the corresponding button, as Figure 1 shown, the control device further includes an indicator light group 800. The indicator light group 800 is arranged on the box body 100 and is electrically connected to the household appliance socket 400, the charging pile socket 500, and the photovoltaic charging battery pack 20 respectively to display the working status of the household appliance socket 400, the charging pile socket 500, and the photovoltaic charging battery pack 20.

[0056] Furthermore, as Figure 1 and Figure 3 shown, the indicator light group 800 includes a first mode indicator light 810, a second mode indicator light 820, and a third mode indicator light 830. The first mode indicator light 810 is connected to the household appliance socket 400 to display the on / off status of the household appliance socket 400; the second mode indicator light 820 is connected to the charging pile socket 500 to display the on / off status of the charging pile socket 500; the third mode indicator light 830 is connected to the photovoltaic charging battery pack 20 to display the charging on / off status of the photovoltaic charging battery pack 20.

[0057] It can be understood that when the balcony energy storage inverter box 10 and the photovoltaic charging battery pack 20 form a balcony energy storage charging and power supply cabinet and the balcony energy storage charging and power supply cabinet is started, the balcony energy storage inverter box 10 is in standby. When the first mode button 710 is clicked, the first mode indicator light 810 lights up, entering the home appliance power supply mode. When the first mode button 710 is clicked again, the first mode indicator light 810 goes out, exiting the home appliance power supply mode; when the second mode button 720 is clicked, the second mode indicator light 820 lights up, entering the electric vehicle charging pile mode. When the second mode button 720 is clicked again, the second mode indicator light 820 goes out, exiting the home appliance power supply mode; when the third mode button 730 is clicked, the third mode indicator light 830 lights up, entering the battery pack charging mode. When the third mode button 730 is clicked again, the third mode indicator light 830 goes out, exiting the home appliance power supply mode.

[0058] Furthermore, the indicator light group 800 further includes a communication indicator light 840 and an error indicator light 850. Before using the balcony energy storage inverter box 10, communication with the photovoltaic charging battery pack 20 is required. After starting the system, the communication indicator light 840 lights up. At this time, the balcony energy storage inverter box 10 can be operated, and corresponding modes can be entered by clicking the buttons; if a fault occurs during the use of the balcony energy storage inverter box 10, the error indicator light 850 lights up to remind the user to troubleshoot the fault. After restarting the system, the communication indicator light 840 lights up and the error indicator light 850 goes out.

[0059] As Figures 4 to 6 shown, in one embodiment, the control device further includes a circuit breaker 900. The circuit breaker 900 is disposed on the box body 100. The first end of the circuit breaker 900 is connected to the mains cable connector 600, and the second end of the circuit breaker 900 is connected to the bidirectional inverter 300. Specifically, the live wire output end L1-I of the circuit breaker 900 is electrically connected to the live wire input end Lin of the bidirectional inverter 300, and the neutral wire output end N1-I of the circuit breaker 900 is electrically connected to the neutral wire input end Nin of the bidirectional inverter 300. It can be understood that when the circuit breaker 900 is turned off, the balcony energy storage inverter box 10 can only enable the home appliance power supply mode and the electric vehicle charging pile mode, and the mains cable connector 600 cannot pass the mains current into the bidirectional inverter 300 to be converted into direct current to charge the photovoltaic charging battery pack 20, avoiding the possibility of the photovoltaic charging battery pack 20 discharging and charging simultaneously; if it is necessary to charge the photovoltaic charging battery pack 20, the circuit breaker 900 needs to be turned on, and the third mode button 730 is clicked to make the third mode indicator light 830 light up, entering the battery pack charging mode. Additionally, in combination with Figure 6As shown, when the circuit breaker 900 is switched on and the balcony energy storage inverter box 10 is in the home appliance power supply mode, the DC current of the photovoltaic charging battery pack 20 is converted into AC current by the bidirectional inverter 300. The mains current of the mains cable connector 600 passes through the circuit breaker 900 and is input into the bidirectional inverter 300 from its live wire output end L1-I and neutral wire output end N-I. After passing through the bidirectional inverter 300 and combining with the converted AC current, it supplies power to the home appliance socket 400 together at the output end of the bidirectional inverter 300 (the first branch of the Lout end and the first branch of the Nout end) to improve the power supply efficiency of household appliances.

[0060] To ensure the normal power supply of the electric vehicle charging pile, as Figure 6 shown, the second end of the circuit breaker 900 is also connected to the charging pile socket 500, so that when the circuit breaker 900 is switched on, the mains power is connected through the mains cable connector 600, and the DC power output by the photovoltaic charging battery pack 20 is converted into DC power and jointly supplies power to the electric vehicle charging pile. When a sudden power outage occurs or the circuit breaker 900 is disconnected, the DC power is output by the photovoltaic charging battery pack 20 and converted into AC power by the bidirectional inverter 300 to supply power to the electric vehicle charging pile. In addition, when the power of the photovoltaic charging battery pack 20 is exhausted and the circuit breaker 900 is switched on, the mains power is connected through the mains cable connector 600 and output to the charging pile socket 500 to supply power to the electric vehicle charging pile.

[0061] Furthermore, handle grooves 104 are provided on both sides of the box body 100. When assembling the photovoltaic charging battery pack 20 and the balcony energy storage inverter box 10, manual installation is required. At this time, the hand is placed in the handle groove 104 to lift the balcony energy storage inverter box 10, and then it is convenient to assemble the balcony energy storage inverter box 10 and the photovoltaic charging battery pack 20.

[0062] As Figure 7 shown, the present disclosure also provides a balcony energy storage charging and power supply cabinet 10A, which includes a photovoltaic charging battery pack 20 and the balcony energy storage inverter box 10 of any one of the above embodiments. The photovoltaic charging battery pack 20 is detachably installed on the balcony energy storage inverter box 10, and the power connection end of the photovoltaic charging battery pack 20 is electrically connected to the power connection end of the balcony energy storage inverter box 10.

[0063] Furthermore, as Figure 7 shown, the photovoltaic charging battery pack 20 includes a main battery pack 21 and slave battery packs 22. The main battery pack 21, the balcony energy storage inverter box 10, and the slave battery packs 22 are electrically connected in sequence along the vertically downward direction.

[0064] In this embodiment, the number of slave battery packs 22 is multiple.

[0065] Furthermore, when the number of slave battery packs 22 is multiple, as Figure 12As shown, the host battery pack 21 is directly disposed on the top of the balcony energy storage inverter box 10, and a plurality of slave battery packs 22 are installed at the bottom of the balcony energy storage inverter box 10. That is, the host battery pack 21, the balcony energy storage inverter box 10, and the plurality of slave battery packs 22 are arranged in sequence in the vertically downward direction to form the balcony energy storage charging and power supply cabinet 10A. Of course, the host battery pack 21 is not limited to being disposed on the top of the balcony energy storage inverter box 10. In another embodiment, as Figure 11 shown, the host battery pack 21 is disposed on the top of the balcony energy storage inverter box 10 through at least one slave battery pack 22, and at least one slave battery pack 22 is installed at the bottom of the balcony energy storage inverter box 10 to form the balcony energy storage charging and power supply cabinet 10A.

[0066] In one embodiment, as Figure 5 and Figure 9 shown, the slave battery pack 22 is provided with a slave connection plug 22a and a slave connection convex member 22b. Both the slave connection plug 22a and the slave connection convex member 22b are located at the top of the slave battery pack 22. The box body 100 is further provided with a fixing groove 130, and the fixing groove 130 is located at the bottom of the box body 100. The slave connection plug 22a is electrically connected to the electrical connection socket 110, and the slave connection convex member 22b is correspondingly disposed in the fixing groove 130 so that the balcony energy storage inverter box 10 is installed above the slave battery pack 22. The effect diagram after the assembly of the two is as Figure 7 、 Figure 11 or Figure 12 shown in the partial structure.

[0067] In one embodiment, as Figure 1 and Figure 8 shown, the box body 100 is further provided with a fixing convex member 140, and the fixing convex member 140 is located at the top of the box body 100. The host battery pack 21 is provided with a main connection slot 21a, and the host battery pack 21 is provided with a main connection socket 21b. Both the main connection slot 21a and the main connection socket 21b are located at the bottom of the host battery pack 21. The electrical connection plug 120 is electrically connected to the main connection socket 21b, and the fixing convex member 140 is correspondingly disposed in the main connection slot 21a so that the host battery pack 21 is fixedly installed above the balcony energy storage inverter box 10. The effect diagram after the assembly of the two is as Figure 7 or Figure 12 shown in the partial structure. When the balcony energy storage inverter box 10 is installed above the slave battery pack 22 and the host battery pack 21 is installed above the balcony energy storage inverter box 10, it can form Figure 7 the balcony energy storage charging and power supply cabinet 10A shown.

[0068] In other embodiments, when the number of slave battery packs 22 is multiple, as Figure 10As shown in the figure, the slave battery pack 22 is provided with a slave socket 22c, and the slave battery pack 22 is also provided with a slave card slot 22d. Both the slave socket 22c and the slave card slot 22d are located at the bottom of the slave battery pack 22. The slave socket 22c is electrically connected to the slave plug 22a through the power connection component of the slave battery pack 22 itself. Specifically, the power connection component is the battery pack body. Combining Figure 9 and Figure 10 , multiple slave battery packs 22 are electrically connected to the slave plug 22a through the slave socket 22c, and the slave convex part 22b is correspondingly arranged in the slave card slot 22d, so that multiple slave battery packs 22 are connected to each other to form a slave battery group pack. Subsequently, the slave battery group pack is installed together under the balcony energy storage inverter box 10, so that the balcony energy storage inverter box 10 is energized with the slave battery group pack. The effect diagram is as Figure 12 shown.

[0069] Of course, when the number of slave battery packs 22 is multiple, the host battery pack 21 may not be limited to being electrically connected to the electrical connection plug 120 through the main socket 21b and the fixing convex part 140 is correspondingly arranged in the main card slot 21a to be installed above the balcony energy storage inverter box 10. In another embodiment, the main socket 21b is electrically connected to the slave plug 22a, and the slave convex part 22b is correspondingly arranged in the main card slot 21a, so that the host battery pack 21 is installed above the slave battery pack 22, that is, the host battery pack 21 is connected to the balcony energy storage inverter box 10 through at least one slave battery pack 22, and at least one slave battery pack 22 is also connected below the balcony energy storage inverter box 10, so that the host battery pack 21 is energized with the balcony energy storage inverter box 10 through the slave battery pack 22, and the slave battery pack 22 located below the balcony energy storage inverter box 10 is also energized with the balcony energy storage inverter box 10. The effect diagram is as Figure 11 shown.

[0070] As Figure 7 shown, in one embodiment, the balcony energy storage charging and power supply cabinet 10A further includes a support component 23, and the support component 23 is fixedly connected to the bottom of the slave battery pack 22. It can be understood that when the support component 23 is fixed to the bottom of the slave battery pack 22, it can play a role of fixing and supporting, and prevent the bottom of the slave battery pack 22 from directly colliding with the ground.

[0071] Furthermore, the support component 23 includes a protection plate 23a and support feet 23b. The bottom of the slave battery pack 22 contacts one side of the protection plate 23a, so that the protection plate 23a is fixedly connected to the slave battery pack 22. The support feet 23b are installed on the side of the protection plate 23a facing away from the bottom of the slave battery pack 22, so that the abutting surface of the support feet 23b contacts the ground, thereby better protecting the bottom of the slave battery pack 22 and preventing the bottom of the slave battery pack 22 from being scratched by external substances such as stones, sand, glass, etc.

[0072] Compared with the prior art, the present disclosure has at least the following advantages:

[0073] The balcony energy storage inverter box 10 can be compatible with the battery pack charging mode, the vehicle charging pile mode, and the household appliance power supply mode. When the first mode, i.e., the household appliance power supply mode, is activated, it can supply power to household devices; when the second mode, i.e., the vehicle charging pile mode, is activated, it can supply power to the vehicle charging pile, so that a new energy vehicle can be connected to the power supply for charging; when the third mode, i.e., the battery pack charging mode, is activated, it can charge the photovoltaic charging battery pack 20. When a sudden power outage occurs, the direct current of the photovoltaic charging battery pack 20 can output alternating current to the household appliance socket 400 or the charging pile socket 500 through the bidirectional inverter 300 to supply power, ensuring normal power supply to household devices and charging of new energy vehicles in the case of a power outage of the commercial power.

[0074] The above-described embodiments merely represent several implementation manners of the present disclosure, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the disclosed patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A balcony energy storage inverter box for connecting a photovoltaic charging battery pack. The balcony energy storage inverter box includes a box body, a heat dissipation device and a control device. The box body is provided with a first through port, a receiving cavity and a second through port that are linearly and sequentially communicated. The heat dissipation device is located in the receiving cavity and is respectively installed on the inner wall of the first through port and the inner wall of the second through port. It is characterized in that, the balcony energy storage inverter box further includes a bidirectional inverter. The bidirectional inverter is located in the receiving cavity. The battery inverter DC discharge end of the bidirectional inverter is connected to the charging end of the photovoltaic charging battery pack. The discharge end of the photovoltaic charging battery pack is connected to the power supply end of the bidirectional inverter, so that when the mains power is cut off, the photovoltaic charging battery pack supplies power to the bidirectional inverter. The control device includes: a household appliance socket provided on the box body. The household appliance socket is connected to the first discharge output end of the bidirectional inverter, so that the photovoltaic charging battery pack supplies power to the household appliance socket through the bidirectional inverter; a charging pile socket provided on the box body. The charging pile socket is connected to the second discharge output end of the bidirectional inverter, so that the photovoltaic charging battery pack supplies power to the charging pile socket through the bidirectional inverter; a mains power cable connector provided on the box body. The mains power cable connector is used to access the mains current. The mains power cable connector is connected to the mains inverter input end of the bidirectional inverter to charge the photovoltaic charging battery pack through the mains inverter input end and the battery inverter DC discharge end of the bidirectional inverter.

2. The balcony energy storage inverter box according to claim 1, wherein The box body is provided with an electrical connection socket. The electrical connection socket is electrically connected to the power supply end of the bidirectional inverter. The electrical connection socket is also used to connect to the slave battery pack of the photovoltaic charging battery pack.

3. The balcony energy storage inverter box according to claim 1, characterized in that, The box body is further provided with an electrical connection plug. The electrical connection plug is electrically connected to the power supply end of the bidirectional inverter. The electrical connection plug is also used to connect to any one of the master battery pack and the slave battery pack of the photovoltaic charging battery pack.

4. The balcony energy storage inverter box according to claim 1, wherein, The control device further includes a circuit breaker. The circuit breaker is provided on the box body. The first end of the circuit breaker is connected to the mains power cable connector. The second end of the circuit breaker is respectively connected to the mains inverter input end of the bidirectional inverter and the charging pile socket.

5. The balcony energy storage inverter box according to claim 1, characterized in that, The control device further includes a button group. The button group is provided on the box body. The button group is connected to the charge and discharge control end of the bidirectional inverter to control the on-off states of the photovoltaic charging battery pack, the household appliance socket, the charging pile socket and the mains power cable connector.

6. The balcony energy storage inverter box according to claim 5, characterized in that, The button group includes a first mode button, a second mode button and a third mode button. The first mode button is connected to the household appliance power supply mode enabling end of the bidirectional inverter to control the on-off state of the discharge of the household appliance socket; The second mode button is connected to the electric vehicle charging pile mode enabling end of the bidirectional inverter to control the on-off state of the discharge of the charging pile socket; The third mode button is connected to the battery pack charging mode enabling terminal of the bidirectional inverter to control the on / off state of the charging between the mains cable connector and the photovoltaic charging battery pack.

7. The balcony energy storage inverter box according to claim 6, wherein, The control device further includes an indicator light group, which is arranged on the box body and is electrically connected to the household electrical appliance socket, the charging pile socket and the photovoltaic charging battery pack respectively to display the working states of the household electrical appliance socket, the charging pile socket and the photovoltaic charging battery pack.

8. The balcony energy storage inverter box according to claim 7, wherein The indicator light group includes a first mode indicator light, a second mode indicator light and a third mode indicator light. The first mode indicator light is connected to the household electrical appliance socket to display the on / off state of the household electrical appliance socket. The second mode indicator light is connected to the charging pile socket to display the on / off state of the charging pile socket. The third mode indicator light is connected to the photovoltaic charging battery pack to display the on / off state of the charging of the photovoltaic charging battery pack.

9. A balcony energy storage charging and power supply cabinet, characterized in that, It includes a photovoltaic charging battery pack and the balcony energy storage inverter box according to any one of claims 1-8. The photovoltaic charging battery pack is detachably installed on the balcony energy storage inverter box, and the power connection end of the photovoltaic charging battery pack is electrically connected to the power connection end of the balcony energy storage inverter box. The photovoltaic charging battery pack includes a host battery pack and a slave battery pack. The host battery pack, the balcony energy storage inverter box and the slave battery pack are electrically connected in sequence along the vertically downward direction.

10. The balcony energy storage charging and power supply cabinet according to claim 9, characterized in that, The slave battery pack is provided with a slave connection plug and a slave connection convex part. The box body is also provided with a fixing groove. The slave connection plug is electrically connected to the electrical connection socket of the box body, and the slave connection convex part is correspondingly arranged in the fixing groove. The box body is also provided with a fixing convex part. The host battery pack is provided with a main connection card slot and a main connection socket. The electrical connection plug of the box body is electrically connected to the main connection socket, and the fixing convex part is correspondingly arranged in the main connection card slot.

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