Household energy storage box

Abstract

The utility model discloses a household energy storage box, which belongs to the technical field of lithium ion household energy storage, aims at solving the problem that when one battery pack is damaged, the whole battery pack cannot be used, and comprises an energy storage box body, the energy storage box body comprises a base, a plurality of battery boxes and a central control box which are fixedly arranged from bottom to top; according to the utility model, the plurality of battery packs are arranged in the plurality of battery boxes, meanwhile, quick disassembly can be realized, and when a single module of one battery pack is damaged, the purpose of continuously using the battery pack can be achieved by disassembling the damaged module and modifying the BMS box body acquisition information when the single module is damaged. The service life of the battery pack can be greatly prolonged, the use scene of the battery pack can be greatly improved, meanwhile, maintenance is convenient, a lossy module can be disassembled by itself and changed into a new module for use, the emergency performance is high, the other two battery modules can still be selected by itself for normal use under the sudden condition, and therefore the practicability of the energy storage box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium-ion household energy storage, and particularly relates to a household energy storage box. Background Technique

[0002] Household energy storage is an energy storage system used in a household or residential environment, usually a battery energy storage system. Their main purpose is to store electrical energy for daily use or when needed. Household energy storage systems can be used in combination with renewable energy systems such as solar photovoltaic panels or wind turbines. In this way, the system can convert electricity into direct current and store it in the battery, and then convert it into alternating current for household use when needed. The advantages of household energy storage systems include providing backup power to cope with power grid outages, balancing energy supply and demand, improving self-sufficiency, and reducing electricity bills. However, the cost of these systems is relatively high, requiring a certain investment, and factors such as performance, capacity, and lifespan need to be considered. With the development of technology and the reduction of costs, household energy storage systems are becoming more and more popular.

[0003] However, for the existing household energy storage box, the current mainstream functional system stores energy by the BMS controlling all combined PACKs as a whole. In the application scenario of using multiple combined PACK modules, if a single PACK has a problem, the entire battery pack cannot be used. Its basic principle is that the BMS cannot divide the PACK control to make it used in segments.

[0004] Therefore, a household energy storage box is needed to solve the problem in the prior art that when one of the battery packs is damaged, the entire battery pack cannot be used. Content of the Utility Model

[0005] The purpose of the utility model is to provide a household energy storage box to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A household energy storage box includes an energy storage box body, and the energy storage box body includes a base, a battery box, and a central control box fixedly installed from bottom to top. There are multiple battery boxes. An on-off mechanism is arranged on the left side of the central control box, and a connection mechanism is arranged on the right side of the central control box.

[0007] The start switch can mainly quickly open the battery pack, and through the internal communication connector, it can mainly ensure reliable data transmission and power supply during the operation of the device, thereby ensuring the normal operation of the entire system.

[0008] It should be noted in the solution that the on-off mechanism includes a start switch, and the start switch is located at the lower left corner of the on-off mechanism;

[0009] The start-stop mechanism further includes an internal communication connector, which is located at the lower right corner of the start-stop mechanism;

[0010] The start-stop mechanism further includes a circuit breaker, which is located in the middle of the surface of the start-stop mechanism.

[0011] Internal communication connectors mainly provide the necessary means for communication and connection between devices, and also ensure reliable data transmission and power supply during the operation of the devices, thus guaranteeing the normal operation of the entire system. They are an essential and important part of the design of electronic devices.

[0012] Through the function of the circuit breaker, it can protect the safety of the circuit, equipment and personnel, prevent problems such as overload, short circuit and electric leakage, and at the same time facilitate the operation and maintenance of the electrical system.

[0013] It is further worth noting that the start switch, internal communication connector and circuit breaker are all electrically connected to the electrical components inside the central control box.

[0014] Furthermore, it should be noted that the connection mechanism includes a positive electrode socket, a negative electrode socket, a reverse valve and a reverse converter communication connector.

[0015] The reverse converter communication connector can mainly achieve multiple functions such as connection, data transmission, monitoring, control and remote management, providing important support for users' real-time monitoring, remote control and data analysis, and helping to improve the efficiency, stability and reliability of the inverter system.

[0016] As a preferred embodiment, the positive electrode socket, negative electrode socket, reverse valve and reverse converter communication connector are all electrically connected to the electrical components inside the central control box.

[0017] As a preferred embodiment, a display screen is provided on the surface of the central control box, and the display screen is electrically connected to the central control box.

[0018] As a preferred embodiment, the number of battery boxes is three.

[0019] Compared with the prior art, a household energy storage box provided by the present utility model has at least the following beneficial effects:

[0020] (1) Multiple battery packs are installed inside multiple battery boxes, and at the same time, quick disassembly can be achieved. When one battery pack is damaged in a single module, when a single module is damaged, the damaged module can be removed and the BMS box acquisition information can be modified to achieve the purpose of continuing to use the battery pack. This can greatly increase the service life and usage scenarios of the battery pack. At the same time, the maintenance is convenient, the worn modules can be removed by oneself and replaced with new modules for use, and the emergency response is strong. In case of sudden situations, two other battery modules can be selected by oneself for normal use, thereby improving the practicality of the energy storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front perspective view of the present utility model;

[0022] Figure 2 It is a left perspective view of the present utility model;

[0023] Figure 3 It is a right perspective view of the present utility model.

[0024] In the figure: 1, energy storage box body; 101, base; 102, battery box; 103, central control box; 2, display screen; 3, start-stop mechanism; 31, start switch; 32, internal communication connector; 33, circuit breaker; 4, connection mechanism; 41, positive electrode socket; 42, negative electrode socket; 43, reverse valve; 44, reverse communication connector. SPECIFIC EMBODIMENTS

[0025] The following further describes the present utility model in conjunction with embodiments.

[0026] Please refer to Figures 1-3 , the present utility model provides a household energy storage box, including an energy storage box body 1. The energy storage box body 1 includes a base 101, a battery box 102, and a central control box 103 that are fixedly installed from bottom to top. There are multiple battery boxes 102. A start-stop mechanism 3 is provided on the left side of the central control box 103, and a connection mechanism 4 is provided on the right side of the central control box 103.

[0027] The start switch 31 can mainly quickly open the battery pack, and the internal communication connector 32 can mainly ensure reliable data transmission and power supply during the operation of the device, thereby ensuring the normal operation of the entire system.

[0028] Further, as Figure 2 shown, it is specifically noted that the start-stop mechanism 3 includes a start switch 31, and the start switch 31 is located at the lower left corner of the start-stop mechanism 3;

[0029] The start-stop mechanism 3 further includes an internal communication connector 32, and the internal communication connector 32 is located at the lower right corner of the start-stop mechanism 3;

[0030] The start-stop mechanism 3 further includes a circuit breaker 33, which is located in the middle of the surface of the start-stop mechanism 3.

[0031] Furthermore, as Figure 1 , Figure 2 shown, it is worth specifically noting that the start switch 31, the internal communication connector 32, and the circuit breaker 33 are all electrically connected to the electrical components inside the central control box 103.

[0032] The internal communication connector 32 mainly provides the necessary means for communication and connection between devices, and also ensures reliable data transmission and power supply during the operation of the devices, thus guaranteeing the normal operation of the entire system. They are an essential and important part in the design of electronic devices.

[0033] Through the function of the circuit breaker 33, it can protect the circuit, equipment, and personnel safety, prevent problems such as overload, short circuit, and electric leakage, and at the same time facilitate the operation and maintenance of the electrical system.

[0034] This solution has the following working process: Through the setting of three battery boxes 102, and the battery used in this solution is a battery pack with a capacity of 15 KWH, connected in series and parallel as 48 strings in parallel. The whole consists of a standard high-voltage box, three standard battery PACK modules (16 strings in parallel), and the existing energy storage system stores energy by the BMS controlling all combined PACKs as a whole. In the application scenario of using multiple combined PACK modules, if a single PACK has a problem, the entire battery pack will not be usable. Its basic principle is that the BMS cannot divide and control the PACK to make it used in segments. In this scenario, the invention is that the BMS controls each path of PACK modules separately, and can achieve the purpose of continuing to use the battery pack by removing the damaged module and modifying the information collected by the BMS box when a single module is damaged. It can greatly increase the service life of the battery pack.

[0035] According to the above working process, it can be known that the built-in energy storage box includes important electronic components such as a display screen 2, a main control BCU, various relays, and a circuit breaker 33. The PACK module line includes important electronic components such as a slave control BMU, battery modules, and fuses. The main control of the high-voltage box manages 3 PACK slave controls. When the battery packs are stacked in series, the slave control first detects the number of voltage strings collected by the PACK module and then feeds it back to the main control. Then the main control judges how many strings are connected and selects the number of boxes to be connected on the display screen. The current scheme is for a 16-string module, so the number of boxes to be connected is 3. When a certain PACK module fails, the current PACK module can be removed. The main control will automatically address and identify the number of box strings, and then modify the number of boxes connected on the display screen to 2, so as to achieve the purpose that it can still be used normally when automatically changing from 48 strings to 32 strings. When increasing or decreasing the battery capacity, similarly, the number of collected strings is increased in multiples of 16, and then the number of boxes on the display screen is changed to arbitrarily increase or decrease the power configuration. This scheme recommends collecting a maximum of 7 voltage information to ensure stability, and at least one battery module.

[0036] Further, as Figure 3 shown, it is worth specifically stating that the connection mechanism 4 includes a positive electrode socket 41, a negative electrode socket 42, a reverse valve 43, and a reverse converter communication connector 44.

[0037] The reverse converter communication connector 44 can mainly achieve multiple functions such as connection, data transmission, monitoring, control, and remote management, providing important support for users' real-time monitoring, remote control, and data analysis, and helping to improve the efficiency, stability, and reliability of the inverter system.

[0038] Further, as Figure 1 、 Figure 3 shown, it is worth specifically stating that the positive electrode socket 41, the negative electrode socket 42, the reverse valve 43, and the reverse converter communication connector 44 are all electrically connected to the electrical components inside the central control box 103.

[0039] Further, as Figure 1 shown, it is worth specifically stating that a display screen 2 is provided on the surface of the central control box 103, and the display screen 2 is electrically connected to the central control box 103.

[0040] Further, as Figure 1 shown, it is worth specifically stating that the number of battery boxes 102 is three.

[0041] In summary: The number of battery boxes 102 is three, and the battery is a battery pack with a capacity of 15 KWH, connected in series and parallel as 48 strings in parallel. The whole consists of a standard high-voltage box and three standard battery PACK modules (16 strings in parallel), and the current PACK module can be removed. The main controller will automatically address and identify the number of strings of the box body, and then modify the number of connected box bodies on the display screen to 2, so as to achieve the purpose that the 48 strings can be automatically changed to 32 strings and still be used normally. When increasing or decreasing the battery capacity, the number of strings is collected in multiples of 16 in the same way, and then the number of boxes on the display screen is changed to increase or decrease the power configuration at will, thereby improving the practicability of the energy storage box body 1.

Claims

1. A household energy storage box, comprising an energy storage box body (1), characterized in that: The energy storage box body (1) comprises a base (101) fixedly installed from bottom to top, a battery box (102) and a central control box (103), wherein there are multiple battery boxes (102), a start-stop mechanism (3) is arranged on the left side of the central control box (103), and a connection mechanism (4) is arranged on the right side of the central control box (103).

2. A household energy storage box according to claim 1, characterized in that: The start-stop mechanism (3) comprises a start switch (31), and the start switch (31) is located at the lower left corner of the start-stop mechanism (3); The start-stop mechanism (3) further comprises an internal communication connector (32), wherein the internal communication connector (32) is located at the lower right corner of the start-stop mechanism (3); The start-stop mechanism (3) further comprises a circuit breaker (33), wherein the circuit breaker (33) is located in the middle of the surface of the start-stop mechanism (3).

3. A household energy storage box according to claim 2, characterized in that: The start switch (31), the internal communication connector (32), and the circuit breaker (33) are all electrically connected to the electrical components inside the central control box (103).

4. A household energy storage box according to claim 1, characterized in that: The connection mechanism (4) comprises a positive pole socket (41), a negative pole socket (42), a reversing valve (43) and a reversing device communication connector (44).

5. A household energy storage box according to claim 4, characterized in that: The positive pole socket (41), the negative pole socket (42), the reverse valve (43) and the reverser communication connector (44) are all electrically connected to electrical components inside the central control box (103).

6. A household energy storage box according to claim 1, characterized in that: A display screen (2) is provided on the surface of the central control box (103), and the display screen (2) is electrically connected to the central control box (103).

7. A household energy storage box according to claim 1, characterized in that: The number of the battery boxes (102) is three.

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