Intelligent electricity supplementing cabinet

Abstract

The utility model discloses an intelligent electricity supplementing cabinet, which comprises a shell, a control display unit, a main control unit, a charging and discharging circuit unit and a plurality of batteries PACK, the main control unit, the charging and discharging circuit unit and the plurality of batteries PACK are all arranged in a cavity of the shell, and the main control unit is respectively and electrically connected with the control display unit and the charging and discharging circuit unit. The charging and discharging circuit unit is also electrically connected with the plurality of batteries PACK respectively; after the control display unit receives an external control signal and transmits the external control signal to the main control unit, the main control unit controls the charging and discharging circuit unit according to the external control signal to control the charging and discharging circuit unit to be closed within a preset time, and then charges a plurality of batteries PACKs. Therefore, the technical problems of high use cost and poor use experience of a user due to the fact that the energy storage device needs to be manually operated in real time during electricity supplement and cannot automatically start the electricity supplement operation in a low-electricity-price time period in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an intelligent power replenishment cabinet. Background Technology

[0002] With the rapid development of the new energy industry, not only has the domestic new energy vehicle industry experienced explosive growth, but a large number of new energy storage devices have also emerged. In related technologies, energy storage devices consist of multiple battery packs. Due to differences in the cells within the battery packs, as well as the transportation and storage conditions of the energy storage devices, energy storage devices may experience power depletion. Different battery packs have different State of Charge (SOC). Therefore, to maintain consistent SOC across different battery packs and extend the lifespan of the energy storage device, it is necessary to replenish the power. Replenishing energy storage devices in related technologies requires real-time manual operation. However, because power grid companies set different electricity prices for different periods to avoid energy waste, energy storage devices cannot automatically replenish power during periods of low electricity prices, leading to increased operating costs.

[0003] Therefore, how to solve the technical problem that energy storage devices require real-time manual operation for power replenishment, resulting in high operating costs, has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] This utility model proposes an intelligent power replenishment cabinet to solve the technical problem in related technologies where energy storage devices require manual polarity replenishment and cannot adaptively replenish power within a preset time period, resulting in high usage costs.

[0005] This utility model discloses an intelligent power supply cabinet, which includes:

[0006] The outer casing forms a cavity;

[0007] A control display unit is embedded in the surface of the housing and is used to receive external control signals and display preset data information;

[0008] The main control unit is fixedly installed in the cavity and electrically connected to the control display unit. It is used to receive the external control signal and transmit the preset data information to the control display unit.

[0009] A charging and discharging circuit unit is provided with wiring in the cavity, and the charging and discharging circuit unit is provided with an external interface embedded in the surface of the housing. The external interface is used to connect to an external power supply. The charging and discharging circuit unit is electrically connected to the main control unit and is used to provide working power to the main control unit and receive control from the main control unit to change the working state.

[0010] Multiple battery packs are disposed in the cavity and electrically connected to the charging and discharging circuit unit, so that the main control unit controls the working state of the charging and discharging circuit unit according to the external control signal, and then starts to charge the multiple battery packs at a preset time.

[0011] The intelligent power supply cabinet of this utility model embodiment has at least the following beneficial effects:

[0012] This utility model discloses an intelligent charging cabinet, comprising a shell, a control and display unit, a main control unit, a charging and discharging circuit unit, and multiple battery packs. The main control unit, the charging and discharging circuit unit, and the multiple battery packs are all housed within the cavity of the shell. The main control unit is electrically connected to both the control and display unit and the charging and discharging circuit unit, and the charging and discharging circuit unit is also electrically connected to each of the multiple battery packs. After receiving external control signals through the control and display unit and transmitting them to the main control unit, the main control unit controls the charging and discharging circuit unit to close at a preset time, thereby charging the multiple battery packs. This solves the technical problems in related technologies where energy storage devices require manual real-time operation for charging, and the energy storage device cannot automatically start charging during periods of low electricity prices, resulting in high operating costs and a poor user experience. This invention provides an intelligent charging cabinet that can automatically start charging at a preset time, has low operating costs, and provides a good user experience.

[0013] According to other embodiments of the present invention, the intelligent charging cabinet includes a current conversion circuit, multiple charging and discharging lines, and multiple switching devices.

[0014] The current conversion circuit is electrically connected to multiple charging and discharging lines, which are respectively connected to multiple battery packs. Multiple switching devices are respectively disposed on multiple charging and discharging lines and electrically connected to the main control unit. The main control unit is used to control the working state of the multiple switching devices.

[0015] According to other embodiments of the present invention, the intelligent power supply cabinet further includes a communication conversion circuit.

[0016] The communication conversion circuit is used to connect multiple battery packs and the main control unit, so that the multiple battery packs respectively send their current status information to the main control unit, and the main control unit can control the multiple battery packs.

[0017] According to other embodiments of the present invention, in the intelligent charging cabinet, the plurality of battery packs each include a BMU, and each BMU is connected to the communication conversion circuit.

[0018] According to other embodiments of the present invention, the intelligent power supply cabinet further includes an indicator light unit;

[0019] The indicator light unit is fixedly mounted on the surface of the housing and electrically connected to the main control unit. The main control unit controls the working state of the indicator light unit to indicate whether the multiple battery packs are in a charging state, a standby state, or a fault state.

[0020] According to other embodiments of the present invention, the intelligent power supply cabinet includes a control display unit comprising a touch screen, a start button, and an emergency stop button;

[0021] The touchscreen, the start button, and the emergency stop button are electrically connected to the main control unit.

[0022] According to other embodiments of the present invention, the vehicle-mounted six-axis gyroscope circuit intelligent charging cabinet, the touch screen is also used to receive the charging cutoff SOC signal and transmit it to the main control unit. The main control unit controls the working state of the charging and discharging circuit unit according to the received charging cutoff SOC signal, so that multiple battery packs are charged in a preset manner.

[0023] According to other embodiments of the present invention, the intelligent power supply cabinet further includes an external battery pack, and the charging and discharging circuit unit further includes a DC voltage regulator circuit and a DC interface.

[0024] The DC interface is located on the surface of the housing. Both ends of the DC interface are connected to the external battery pack and the DC voltage regulator circuit, respectively. The other end of the DC voltage regulator circuit is connected to the charging and discharging circuit unit.

[0025] According to other embodiments of the present invention, in the intelligent charging cabinet, multiple battery packs are installed in the cavity in a drawer-like manner. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the module composition of a specific embodiment of the intelligent power supply cabinet of this utility model;

[0027] Figure 2 This is a schematic diagram of a specific embodiment of the charging and discharging circuit unit in an intelligent power supply cabinet according to this utility model;

[0028] Figure 3 This is a schematic diagram of the circuit structure of a specific embodiment of the current conversion circuit in an intelligent power supply cabinet according to this utility model;

[0029] Figure 4 This is a schematic diagram of the module composition of another specific embodiment of the intelligent power replenishment cabinet of this utility model;

[0030] Figure 5 This is a schematic diagram of the module composition of another specific embodiment of the intelligent power replenishment cabinet of this utility model;

[0031] Figure 6 This is a schematic diagram of a specific embodiment of the control and display unit in an intelligent power supply cabinet according to this utility model;

[0032] Figure 7 This is a simplified connection diagram of a specific embodiment of the intelligent power supply cabinet of this utility model, which is equipped with an external battery cluster. Detailed Implementation

[0033] The following will describe the concept and technical effects of the utility model clearly and completely with reference to the embodiments, so as to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are all within the protection scope of the utility model.

[0034] In the description of the embodiments of this utility model, the term "several" means one or more, and the term "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while the terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0035] Reference Figure 1This utility model provides an intelligent charging cabinet, which includes a shell, a control and display unit, a main control unit, a charging and discharging circuit unit, and multiple battery packs. The shell has a cavity, within which the main control unit, the charging and discharging circuit unit, and the multiple battery packs are all housed. The control and display unit is embedded in the surface of the shell. The main control unit is electrically connected to both the control and display unit and the charging and discharging circuit unit, and the charging and discharging circuit unit is electrically connected to each of the multiple battery packs. The charging and discharging circuit unit also has an external interface embedded in the surface of the shell for connecting to an external power source. In this embodiment, the control and display unit receives external control signals and transmits them to the main control unit. The main control unit then controls the charging and discharging circuit unit to be in a closed working state at a preset time according to the received external control signals. Subsequently, the external input power supply replenishes multiple battery packs through the charging and discharging circuit, so that each battery pack is at a preset SOC after replenishment. The main control unit then controls the charging and discharging circuit unit to disconnect and starts replenishment at a preset time according to the low electricity price period, realizing low-cost automatic replenishment. This solves the technical problem in related technologies that energy storage devices require manual real-time operation when replenishing, and cannot automatically start replenishment operation during low electricity price periods, resulting in high usage costs and poor user experience.

[0036] Reference Figure 2 In some embodiments, to achieve stable charging or discharging control of multiple battery packs, the charging / discharging circuit unit includes a current conversion circuit, multiple charging / discharging lines, and multiple switching devices. One end of the current conversion circuit is connected to an external interface, and the other end is electrically connected to multiple charging / discharging lines. Multiple switching devices are respectively connected to the connection lines of multiple charging / discharging lines and multiple battery packs. The control terminals of multiple switching devices are electrically connected to the main control unit. Then, after receiving the external control signal transmitted by the control display unit, the main control unit controls multiple switching devices to close sequentially at a preset time according to the external control signal, so as to replenish the multiple battery packs sequentially.

[0037] Reference Figure 3 In some embodiments, in order to reliably convert the AC power input from the external power source into DC power to reliably replenish and balance the power of each battery pack, the current conversion circuit in this embodiment includes a bridge rectifier circuit. After the external power source is connected to the external interface, the AC power is converted into DC power by the bridge rectifier circuit and input to multiple charging and discharging lines. Then, the main control unit controls multiple controllers to replenish the power of multiple battery packs respectively.

[0038] In some embodiments, to achieve precise control of multiple charging and discharging lines, multiple switching devices include multiple relay switches. By setting multiple relay switches on the charging and discharging lines of multiple battery packs respectively, the main control module achieves precise control of each charging and discharging line by controlling the closed / open state of each relay switch.

[0039] Reference Figure 4 In some embodiments, to acquire various data information from multiple battery packs and achieve status control of the multiple battery packs, the intelligent charging cabinet in this embodiment also includes a communication conversion circuit. This communication conversion circuit connects the multiple battery packs and the main control unit, providing a communication link between the main control unit and the multiple battery packs. Each battery pack then sends its current status information to the main control unit, and the main control unit can also control the operating status of the multiple battery packs through the communication link. Specifically, in some embodiments, each battery pack sends its current operating status information and SOC information to the main control unit. After receiving the operating status information and SOC information from each battery pack, the main control unit transmits them to the control display unit for display, allowing users to intuitively obtain the operating status information and SOC information of each battery pack.

[0040] In some embodiments, to achieve stable communication between the main control unit and each battery pack, and to ensure that the main control unit can control the operation of the entire intelligent charging cabinet, the main control unit in this embodiment is implemented by an STM32F407IGT6 MCU. The main control unit is connected to a communication conversion circuit, which is based on the LTC6820HMS#3ZTRPBF chip. This enables SPI bus communication between the main control unit and each battery pack, ensuring stable communication between them. The operating status information and SOC information of each battery pack can be transmitted to the main control unit via SPI bus communication, and the main control unit can also send control information to each battery pack via SPI bus communication.

[0041] In some embodiments, to accurately send the operating status information and SOC information of each battery pack to the main control unit and to accurately respond to the control of the main control unit, in this embodiment, each of the multiple battery packs described in the above embodiments includes a BMU. The BMU in each battery pack is connected to a communication conversion circuit. The battery pack information collected by the BMU is transmitted to the main control unit through the communication conversion circuit. At the same time, the main control unit sends control information to each BMU through the communication conversion circuit to control the operating status of each battery pack.

[0042] Reference Figure 5In some embodiments, in order to enable users to intuitively obtain the operating status of multiple battery packs in the intelligent charging cabinet of this utility model embodiment, it also includes an indicator light unit; wherein, the indicator light unit is embedded on the surface of the housing, the main control unit is electrically connected to the indicator light unit, and then the main control unit controls the working state of the indicator light unit to prompt the user that multiple battery packs are in charging state, stopped charging state, fault state, or standby state.

[0043] Reference Figure 6 Specifically, in some embodiments, the multiple battery packs include four battery packs, and the indicator unit includes four LEDs: LED1, LED2, LED3, and LED4. Each LED indicates the operating status of one battery pack. In this embodiment, the main control unit controls the four LEDs to be in different colored states to indicate the operating status of their corresponding battery packs. For example, LEDs 1 to 4 indicate packs 1 to 4 respectively. When LED1 is in a solid yellow state, it indicates that battery pack 1 is in standby mode, waiting for recharging; when LED1 is in a solid red state, it indicates that battery pack 1 is being recharged; when LED1 is in a flashing red-yellow state, it indicates that battery pack 1 is in a fault state and needs to be checked. Similarly, the operating status of battery packs 2 to 4 indicated by LEDs 2 to 4 corresponds to the operating status of battery pack 1 indicated by LED 1.

[0044] Reference Figure 6 In some embodiments, the control display unit includes a touch screen, a start button, and an emergency stop button; wherein the touch screen, start button, and emergency stop button are electrically connected to the main control unit. Specifically, in some embodiments, the start button is used to receive an external control signal (start signal) to start the main control unit. After the main control unit starts working, it controls the touch screen to start, so as to display the operating status information and SOC information of multiple battery packs obtained by the main control unit through the communication conversion circuit. The touch screen provides touch buttons for receiving the charge cutoff SOC signal and transmitting it to the main control unit. After receiving the charge cutoff SOC signal, the main control unit controls the working state of the charging and discharging circuit unit to charge multiple battery packs in a preset manner. In one specific embodiment, in order to perform SOC balancing on multiple battery packs in the shortest time with the least amount of power, a charging cutoff SOC signal can be set according to the highest SOC information displayed on the touch screen. Then, when the main control unit performs charging balancing on each battery pack, it controls the working state of the charging and discharging circuit unit to charge the battery packs with the lowest SOC in sequence, thereby achieving SOC balancing on multiple battery packs.

[0045] Reference Figure 6 In some implementations, to facilitate the repair and replacement of multiple battery packs when they fail, reduce the operational difficulty of the repair process, and save repair time, this embodiment describes a battery pack installed in a drawer-like manner within the cavity of the casing. This allows for quick and convenient removal of the corresponding battery pack for repair and replacement when a battery pack associated with a particular LED display fails.

[0046] Reference Figure 7 In some embodiments, to achieve balanced charging of various battery packs during periods of high electricity prices or to store more energy during periods of low electricity prices, this embodiment also includes an external battery cluster. The charging and discharging circuit unit further includes a DC voltage regulator circuit and a DC interface. The DC interface is embedded in the surface of the casing. The external battery cluster is connected to the DC interface via a power supply. One end of the DC voltage regulator circuit is connected to the power supply interface, and the other end is connected to multiple charging and discharging lines. The DC voltage regulator circuit regulates the output energy from the multiple battery packs and then charges the external battery cluster via the DC interface. Therefore, when the SOC of multiple battery packs is high, they can discharge and store energy in the external battery cluster for charging during periods of low electricity prices. In another scenario, if multiple battery packs need to be charged during periods of high electricity prices, charging can be prioritized through the battery cluster to achieve a low-cost charging process.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A smart power compensation cabinet, characterized in that, The intelligent power compensation cabinet comprises: a shell forming a cavity; a control display unit embedded on the surface of the shell for receiving an external control signal and displaying preset data information; a main control unit fixedly arranged in the cavity and electrically connected with the control display unit for receiving the external control signal and transmitting the preset data information to the control display unit; a charging and discharging circuit unit arranged in the cavity and provided with an external interface embedded on the surface of the shell, the external interface being used for accessing an external input power source, the charging and discharging circuit unit being electrically connected with the main control unit for providing working power for the main control unit and receiving control of the main control unit to change the working state; a plurality of battery packs arranged in the cavity and electrically connected with the charging and discharging circuit unit, so that the main control unit controls the working state of the charging and discharging circuit unit according to the external control signal, thereby starting to compensate the plurality of battery packs at a preset time.

2. The smart power compensation cabinet of claim 1, wherein, The charging and discharging circuit unit comprises a current conversion circuit, a plurality of charging and discharging circuits and a plurality of switching devices. The current conversion circuit is electrically connected with the plurality of charging and discharging circuits, the plurality of charging and discharging circuits are respectively connected to the plurality of battery packs, the plurality of switching devices are respectively arranged on the plurality of charging and discharging circuits, and the plurality of switching devices are electrically connected with the main control unit, the main control unit being used for controlling the working state of the plurality of switching devices.

3. The smart power compensation cabinet of claim 2, wherein, The intelligent power compensation cabinet further comprises a communication conversion circuit. The communication conversion circuit is used for connecting the plurality of battery packs and the main control unit, so that the plurality of battery packs respectively send current state information to the main control unit, and the main control unit controls the plurality of battery packs.

4. The smart power compensation cabinet of claim 3, wherein, Each of the plurality of battery packs comprises a BMU, and each BMU is connected with the communication conversion circuit.

5. The smart power compensation cabinet according to any one of claims 1 to 4, characterized in that, The intelligent power compensation cabinet further comprises an indicator light unit. The indicator light unit is fixedly arranged on the surface of the shell and electrically connected with the main control unit, the main control unit controlling the working state of the indicator light unit to prompt that the plurality of battery packs are in a charging state, a standby state or a fault state.

6. The smart power bank of claim 5, wherein, The control display unit comprises a touch screen, a start button and an emergency stop button. The touch screen, the start button and the emergency stop button are electrically connected with the main control unit.

7. The smart power bank of claim 6, wherein, The touch screen is further used for receiving a power compensation cutoff SOC signal and transmitting the power compensation cutoff SOC signal to the main control unit, and the main control unit controls the working state of the charging and discharging circuit unit according to the received power compensation cutoff SOC signal, so that the plurality of battery packs compensate power in a preset manner.

8. The smart power compensation cabinet according to any one of claims 1 to 4, characterized in that, The intelligent power compensation cabinet further comprises an external battery cluster, and the charging and discharging circuit unit further comprises a direct current stabilizing circuit and a direct current interface; the direct current interface is arranged on the surface of the shell, two ends of the direct current interface are connected with the external battery cluster and the direct current stabilizing circuit respectively, and the other end of the direct current stabilizing circuit is connected to the charging and discharging circuit unit.

9. The smart power compensation cabinet of claim 8, wherein, A plurality of battery PACKs are installed in the cavity in a drawer type.

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