Energy storage charging and discharging device and electronic equipment

Abstract

The invention discloses an energy storage charging and discharging device and electronic equipment, and relates to the field of energy storage charging, and a main control board in the scheme can control a battery pack to stop discharging by prohibiting transmission of a discharging instruction to a charging module when it is detected that first direct current electric energy or photovoltaic direct current electric energy or first alternating current electric energy is accessed. In addition, the main control board receives the current voltage and current of the battery pack collected by the charging module, receives third direct-current electric energy, second direct-current electric energy, second alternating-current electric energy and third alternating-current electric energy, and sends the third direct-current electric energy, the second direct-current electric energy, the second alternating-current electric energy and the third alternating-current electric energy to the charging module. In addition, the main control board transmits the type of the electric equipment to the display module and displays the type of the electric equipment, that is, the display module in the scheme can display the type of the electric equipment and / or each electric energy parameter involved in the energy storage charging and discharging device in the using process, and observation of a user is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of energy storage and charging, and in particular to an energy storage charging and discharging device and electronic equipment. Background Art

[0002] At present, with the continuous progress of society and technology, the use of electricity is becoming more and more popular. However, in actual use, since the power supply needs to be transmitted using a power cord when it is used, many outdoor devices need to use a mobile energy storage power supply when using the power supply to ensure the power supply of the outdoor equipment. The existing energy storage power supply generally has multiple battery packs with rated capacity, inverters and other devices built in, and charges the battery pack through a conventional multi-pin charger. When the energy storage power supply is needed, the energy storage power supply is connected to the power-consuming equipment and supplies power to the power-consuming equipment. However, when the energy storage power supply is connected to the multi-pin charger and the power-consuming equipment at the same time, it will be in a "charging and discharging" state, which will cause serious damage to the battery pack in the energy storage power supply and seriously affect the service life of the battery pack; and the existing energy storage power supply cannot display the parameters of each battery pack and the charging and discharging process in real time, which is not conducive to user observation. Summary of the invention

[0003] The purpose of the present invention is to provide an energy storage charging and discharging device and an electronic device. The main control board in this solution can control the battery pack to stop discharging when the power input port is connected to the first DC power or the first AC power, that is, the battery pack in the energy storage charging and discharging device will not be in a "charging and discharging" state. In addition, the display module in this solution can display the type of electrical equipment and / or various power parameters involved in the use of the energy storage charging and discharging device, which is beneficial to the user's observation.

[0004] In order to solve the above technical problems, the present invention provides an energy storage charging and discharging device, comprising: a main control board, a boost module, a charging module, an output inverter module, a photovoltaic inverter module, a battery pack, and a display module;

[0005] The main control board is used to send a discharge instruction to the charging module after the first AC power or the first DC power or the photovoltaic DC power is not connected, stop sending the discharge instruction to the charging module after the first AC power or the first DC power or the photovoltaic DC power is connected, and send the second DC power or the second AC power to the power-consuming device based on the type of the power-consuming device;

[0006] The photovoltaic inverter module is used to convert the first direct current power or the photovoltaic direct current power into a third alternating current power;

[0007] The charging module is used to transmit the current voltage and current of the battery pack to the main control board, and transmit the first AC power or the third AC power to the battery pack based on the charging instruction transmitted by the main control board, and control the battery pack to output the third DC power to the boost module based on the discharge instruction;

[0008] The boost module is used to perform a boost operation on the third DC power to generate the second DC power, so that the output inverter module converts the second DC power into the second AC power;

[0009] The display module is used to display the type of the electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current of the battery pack.

[0010] Optionally, it also includes: a DC input port and an AC input port;

[0011] The DC input port is used to output the first direct current power or the photovoltaic direct current power to the main control board and the photovoltaic inverter module respectively;

[0012] The AC input port is used to transmit the first AC power received to the main control board and the charging module respectively.

[0013] Optionally, it also includes: a DC output port and an AC output port;

[0014] The DC output port is used to transmit the second DC power to a DC power-consuming device among the power-consuming devices;

[0015] The AC output port is used to transmit the second AC power energy to an AC power-consuming device among the power-consuming devices.

[0016] Optionally, the display module is a touch screen, used to display the type of the electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current current of the battery pack.

[0017] Optionally, the main control board is also used for:

[0018] Determining whether the current voltage of the battery pack is within a preset voltage range and whether the current current of the battery pack is within a preset current range;

[0019] If the current voltage of the battery pack is within a preset voltage range and the current of the battery pack is within a preset current range, it is determined that the voltage value and the current value of the battery pack are normal;

[0020] If the current voltage of the battery pack is not within the preset voltage range or the current of the battery pack is not within the preset current range, it is determined that the voltage value and the current value of the battery pack are abnormal.

[0021] Optionally, the battery pack is detachably connected to the charging module and the boost module.

[0022] Optionally, also include:

[0023] A filtering device is used to filter the third DC power output by the battery pack accordingly, and transmit the filtered third DC power to the boost module.

[0024] Optionally, when the number of the battery packs, the number of the charging modules, and the number of the boost modules are all N, N is not less than 2; the main control board is further used for:

[0025] Obtaining the rated power of the electrical equipment;

[0026] determining a current output power according to the second DC power or the second AC power;

[0027] The actual discharge order of the N battery packs is determined based on the current output power, the rated power, and the relationship between the current voltage and the current current of the N battery packs, and corresponding discharge instructions are output to the corresponding charging modules in sequence according to the actual discharge order.

[0028] Optionally, when the number of the battery packs, the number of the charging modules, and the number of the boost modules are all N, N is not less than 2; the main control board is further used for:

[0029] Determining whether the electrical device is an AC electrical device according to the type of the electrical device;

[0030] If the power-consuming device is an AC power-consuming device, controlling the N battery packs to discharge to the AC power-consuming device at the same time, and determining the current output power of the N battery packs according to the second AC power;

[0031] Determining whether the current output power is less than a preset power threshold;

[0032] If the current output power is less than the preset power threshold, determining the battery pack corresponding to the current maximum voltage of the N battery packs, and controlling the battery pack corresponding to the current maximum voltage to discharge to the AC power device;

[0033] If the current output power is not less than the preset power threshold, the actual discharge order of the N battery packs is determined according to the magnitude relationship of the current voltages of the N battery packs, and the N battery packs are controlled to discharge to the AC power equipment according to the actual discharge order until the voltages of the N battery packs are equal, and then the N battery packs are controlled to discharge to the AC power equipment at the same time.

[0034] In order to solve the above technical problems, the present invention further provides an electronic device, comprising: the energy storage charging and discharging device as described above, and a housing, wherein the energy storage charging and discharging device is arranged in the housing.

[0035] Optionally, also include:

[0036] A heat dissipation device is arranged in the shell.

[0037] The purpose of the present invention is to provide an energy storage charging and discharging device and an electronic device. The main control board in this solution can control the battery pack to stop discharging when the power input port is connected to the first DC power or the first AC power, that is, the battery pack in the energy storage charging and discharging device will not be in a "charging and discharging" state. In addition, the main control board will also receive the voltage value and current value of the battery pack collected by the charging module, and receive the second DC power output by the battery pack, the boosted second DC power output by the boost module, the second AC power and the third AC power output by the inverter module, and display the voltage value and current value corresponding to the above power through the display module. In addition, the main control board will also transmit the type of electrical equipment to the display module and display it, that is, the display module in this solution can display the type of electrical equipment and / or the various electrical energies involved in the use of the energy storage charging and discharging device, which is convenient for users to observe. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of an energy storage charging and discharging device provided by the present invention;

[0040] Figure 2 A schematic structural diagram of another energy storage charging and discharging device provided by the present invention;

[0041] Figure 3 A schematic diagram of the structure of an electronic device provided by the present invention;

[0042] Figure 4 A schematic structural diagram of another electronic device provided by the present invention. DETAILED DESCRIPTION

[0043] The core of the present invention is to provide an energy storage charging and discharging device and an electronic device. The main control board in this solution can control the battery pack to stop discharging when the power input port is connected to the first DC power or the first AC power, that is, the battery pack in the energy storage charging and discharging device will not be in a "charging and discharging" state. In addition, the display module in this solution can display the type of electrical equipment and / or various power parameters involved in the use of the energy storage charging and discharging device, which is conducive to user observation.

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Please refer to Figure 1 , Figure 1 The schematic diagram of the structure of an energy storage charging and discharging device provided by the present invention. The energy storage charging and discharging device comprises: a main control board 1, a boost module 2, a charging module 3, an output inverter module 4, a photovoltaic inverter module 5, a battery pack 6, and a display module 7;

[0046] The main control board 1 is used to send a discharge instruction to the charging module 3 after the first AC power or the first DC power or the photovoltaic DC power is not connected, stop sending the discharge instruction to the charging module 3 after the first AC power or the first DC power or the photovoltaic DC power is connected, and send the second DC power or the second AC power to the power-consuming device based on the type of the power-consuming device;

[0047] A photovoltaic inverter module 5, used for converting the first direct current power or the photovoltaic direct current power into a third alternating current power;

[0048] The charging module 3 is used to transmit the current voltage and current of the battery pack 6 to the main control board 1, and transmit the first AC power or the third AC power to the battery pack 6 based on the charging instruction transmitted by the main control board 1, and control the battery pack 6 to output the third DC power to the boost module 2 based on the discharge instruction;

[0049] The boost module 2 is used to perform a boost operation on the third DC power to generate a second DC power, so that the output inverter module 4 converts the second DC power into a second AC power;

[0050] The display module 7 is used to display the type of electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current of the battery pack 6.

[0051] In the present invention, considering that the battery pack 6 in the existing energy storage power supply will be in a "charging and discharging" state when connected to the charger and the power-consuming equipment at the same time, and the battery pack 6 will be seriously damaged if it works in this state for a long time, seriously affecting the service life of the battery pack 6, and even causing safety hazards, the present solution sets a main control board 1, and monitors the power input through the main control board 1, that is, detects whether the first DC power or photovoltaic DC power or the first AC power is connected. If the first DC power or photovoltaic DC power or the first AC power is connected, the main control board 1 will stop sending power generation instructions to all charging modules 3, and the charging module 3 will not control the battery pack 6 to enter The battery pack 6 is discharged during charging and discharging, thus achieving "charge and discharge isolation" and ensuring the safety of the battery pack 6; in addition, considering that the energy storage power supply in the prior art cannot display the various parameters during the charging and discharging process, the present scheme also provides a display module 7, which can display one or more parameters of the current voltage and current of the battery pack 6, the third DC power output by the battery pack 6, the second DC power output by the boost module 2, the second AC power output by the inverter module, the third AC power output by the photovoltaic inverter module 5, the first DC power connected to the main control board 1, the first AC power, the photovoltaic DC power and the type of electrical equipment according to the control of the main control board 1, so as to facilitate user viewing.

[0052] It should be noted that in actual applications, considering that the entire circuit is prone to overcurrent or overvoltage when the energy storage charging and discharging device is charging and discharging, corresponding protection devices can be set on the circuit of each battery pack 6, such as: fuses or other devices. When the corresponding circuit has overcurrent or overvoltage, the corresponding circuit can be disconnected in time to ensure the safety of the entire energy storage charging and discharging device.

[0053] It should also be noted that this solution solves the technical problem of 1. When the voltage and power of a single battery and multiple batteries on the same voltage platform are different, the parallel connection does not cause mutual series electricity, and the potential safety hazards are eliminated to form a product. 2. In the parallel state, the battery pack 6 is switched to work according to the output power, and the discharge current is independently controlled at the rated power, and the system is fully discharged and balanced from high to low to ensure the life and safety of the battery pack 6. 3. Based on the current technical problems solved by the product in the circuit, we optimized and developed the solution with the energy storage power supply. The product itself canceled the battery pack 6, which reduced the cost and eliminated the potential safety hazards in transportation. The user's existing battery pack 6 works as a power source, reducing energy waste and increasing the utilization rate. 4. This solution has been optimized in charging management. The original multi-charge only solved the charging problem, and it was AC input charging. We integrated AC (Alternating Current) and DC (Direct Current) input charging. DC is mainly used to charge in the application scenario of outdoor photovoltaic panels. The solar charging of the battery pack 6 for tools is the first of its kind in this type of product. 5. In order to solve the potential safety hazard when the input terminal is suddenly connected to electricity during discharge, we have designed an identification system at the input terminal (main control board 1). When there is voltage and current at the input terminal, the output terminal of the battery pack 6 is automatically switched to disconnect, and only charging is allowed.

[0054] The present embodiment provides an energy storage charging and discharging device. The main control board 1 in the present solution can control the battery pack 6 to stop discharging by prohibiting the transmission of the discharge instruction to the charging module 3 when detecting the access of the first DC power or the photovoltaic DC power or the first AC power, so that the battery pack 6 in the energy storage charging and discharging device will not be in a "charging and discharging" state. In addition, the main control board 1 will also receive the current voltage and current of the battery pack 6 collected by the charging module 3, and receive the third DC power output by the battery pack 6, the second DC power output by the boost module 2, the second AC power output by the inverter module, and the third AC power output by the photovoltaic inverter module 5, and display one or more of the above parameters through the display module 7. In addition, the main control board 1 will also transmit the type of electrical equipment to the display module 7 and display it, that is, the display module 7 in the present solution can display the type of electrical equipment and / or various power parameters involved in the use of the energy storage charging and discharging device, which is convenient for the user to observe.

[0055] Based on the above embodiments:

[0056] As an optional embodiment, it further includes: a DC input port and an AC input port;

[0057] A DC input port, used to output the connected first DC power or photovoltaic DC power to the main control board 1 and the photovoltaic inverter module 5 respectively;

[0058] The AC input port is used to transmit the first AC power received to the main control board 1 and the charging module 3 respectively.

[0059] In the present invention, it is considered that directly connecting the main control board 1 to DC power or AC power will affect the control function of the main control board 1. In addition, because the existing energy storage power supply does not distinguish the input of power, for example, both DC power and AC power are connected through one power input port, that is, the input of AC power and the input of DC power are not isolated, which is easy to cause the failure of the energy storage power supply, and even burn the energy storage power supply in serious cases. Therefore, the present solution adds a DC input port and an AC input port, and the DC input port can only connect the first DC power to the AC power supply. Or the photovoltaic DC power is output to the main control board 1 and the photovoltaic inverter module 5 respectively, and the AC input port can only transmit the first AC power to the main control board 1 and the charging module 3 respectively, and there will be no situation in which the DC power is connected to the main control board 1 through one input port at the same time, thereby achieving the isolation of AC power and DC power and improving the safety of the solution; in addition, because the DC input port and the AC input port are respectively connected to the main control board 1 and the corresponding power, the impact of the power on the main control board 1 during access can be greatly reduced, thereby improving the accuracy of the control function of the main control board 1.

[0060] As an optional embodiment, it further includes: a DC output port and an AC output port;

[0061] A DC output port, used to transmit the second DC power to a DC power-consuming device in the power-consuming device;

[0062] The AC output port is used to transmit the second AC power to an AC power-consuming device among the power-consuming devices.

[0063] In the present invention, it is considered that directly connecting the main control board 1 to the electrical equipment will affect the control function of the main control board 1. In addition, because the existing energy storage power supply does not distinguish the output of electrical energy, for example, for DC electrical equipment and AC electrical equipment, both are connected through one electrical energy output port, that is, the output of AC electrical energy and the output of DC electrical energy are not isolated, which is easy to cause the failure of the energy storage power supply, and even burn the energy storage power supply in severe cases. Therefore, the present solution adds a DC output port and an AC output port. The DC output port can only transmit the second DC electrical energy to the DC electrical equipment, and the AC output port can only transmit the second AC electrical energy to the AC electrical equipment. There will be no situation where DC electrical energy is transmitted to AC electrical equipment and AC electrical energy is transmitted to DC electrical equipment, thereby achieving isolation of AC electrical energy and DC electrical energy and improving the safety of the solution. In addition, by connecting the electrical equipment and the main control board 1 respectively through the DC output port and the AC output port, the impact of the electrical equipment on the main control board 1 when charging can be greatly reduced, thereby improving the accuracy of the control function of the main control board 1.

[0064] As an optional embodiment, the display module 7 is a touch screen for displaying the type of electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current of the battery pack 6.

[0065] In the present invention, it is taken into consideration that the actual needs of users may be different. For example, the user currently only wants to view the type of electrical equipment or the user currently only wants to view the current voltage and current of the battery pack 6, etc. Therefore, this solution adopts a touch screen as the display module 7. The user can manually select the parameters actually displayed, which is more convenient for the user's actual use.

[0066] As an optional embodiment, the main control board 1 is further used for:

[0067] Determine whether the current voltage of the battery pack 6 is within a preset voltage range and whether the current current of the battery pack 6 is within a preset current range;

[0068] If the current voltage of the battery pack 6 is within the preset voltage range and the current of the battery pack 6 is within the preset current range, it is determined that the voltage value and the current value of the battery pack 6 are normal;

[0069] If the current voltage of the battery pack 6 is not within the preset voltage range or the current of the battery pack 6 is not within the preset current range, it is determined that the voltage value and the current value of the battery pack 6 are abnormal.

[0070] In the present invention, considering that the battery pack 6 may have over-high voltage, over-low voltage, over-high current, over-low current, etc. in actual use, which may cause the battery pack 6 to malfunction during the charging and discharging process, the main control board 1 will also judge whether the current voltage of the battery pack 6 is within the preset voltage range and whether the current current of the battery pack 6 is within the preset current range based on the current voltage and current current of the battery pack 6 collected by the charging module 3. If the current voltage of the battery pack 6 is within the preset voltage range and the current current of the battery pack 6 is within the preset current range, it proves that the current voltage value and current value of the battery pack 6 are normal; conversely, if the current voltage of the battery pack 6 is not within the preset voltage range or the current current of the battery pack 6 is not within the preset current range, it proves that the current voltage value and current value of the battery pack 6 are abnormal. That is, the present scheme can realize real-time monitoring of the fault condition of the battery pack 6, facilitate timely detection of the fault of the battery pack 6, and greatly improve the safety of the scheme.

[0071] It should be noted that, in actual applications, an alarm module may also be provided. When the main control board 1 detects that the current voltage of the battery pack 6 is not within the preset voltage range or the current current of the battery pack 6 is not within the preset current range, a corresponding alarm may be issued to promptly remind the user that the battery pack 6 has a fault, thereby facilitating subsequent replacement or repair of the battery pack 6. In addition, the alarm module may be a display alarm device, a sound alarm device, or an alarm device such as a display alarm device and a sound alarm device.

[0072] As an optional embodiment, the battery pack 6 is detachably connected to the charging module 3 and the boost module 2 .

[0073] In the present invention, considering that the battery pack 6 is prone to instability when used for too long, the battery pack 6 used in this solution is a detachable battery pack 6, which is convenient for timely replacement and improves the reliability of the solution.

[0074] As an optional embodiment, it also includes:

[0075] The filtering device is used to filter the third DC power output by the battery pack 6 accordingly, and transmit the filtered third DC power to the boost module 2.

[0076] In the present invention, considering that the third DC power may be unstable in transmission due to environmental influences during actual transmission, a filtering device is further provided between the boost module 2 and the battery pack 6. The third DC power output by the battery pack 6 is filtered by the filtering device to ensure the accuracy of the third DC power transmission process.

[0077] It should be noted that, in practical applications, the filtering device may be a capacitor, or may be a filtering device such as an RC filtering circuit or an RL filtering circuit.

[0078] As an optional embodiment, Figure 2 As shown, when the number of battery packs 6, the number of charging modules 3 and the number of boost modules 2 are all N, N is not less than 2; the main control board 1 is also used for:

[0079] Get the rated power of the electrical equipment;

[0080] determining a current output power according to the second DC power or the second AC power;

[0081] The actual discharge order of the N battery packs 6 is determined based on the current output power, rated power, and the relationship between the current voltage and current current of the N battery packs 6, and corresponding discharge instructions are output to the corresponding charging modules 3 in sequence according to the actual discharge order.

[0082] In the present invention, considering that there may be multiple battery packs 6 inside the energy storage charging and discharging device, in order to achieve accurate control and boosting of each battery pack 6, this solution will adopt the same number of charging modules 3 and boosting modules 2 as the battery packs 6. In addition, considering that when there are multiple battery packs 6, the charging order of each battery pack 6 in the energy storage charging and discharging device is easily affected by the power required by the electrical equipment, the main control board 1 will first obtain the rated power of the electrical equipment, and then determine the current output power according to the second DC power or the second AC power. Finally, the actual discharge order of the N battery packs 6 can be determined based on the current output power, the rated power and the current voltage and current current of the N battery packs 6, and the corresponding discharge instructions are output to the corresponding charging modules 3 in sequence according to the actual discharge order, that is, the individual battery packs 6 are controlled to discharge first according to the actual voltage and actual current of the battery pack 6, so as to accurately meet the power demand of the electrical equipment, thereby ensuring the stability of the discharge process of the energy storage charging and discharging device.

[0083] It should be noted that, because the present solution can have multiple removable battery packs 6 built in, and each battery pack 6 is connected in parallel, the present solution mainly solves the problem of removable and replaceable energy storage power batteries, plug and play, and uses technical means to control the isolation between batteries when multiple batteries are used to ensure the safety of the batteries. Increasing the battery life only requires increasing the number of batteries and the capacity of each battery to ensure that the batteries are connected in parallel. On the one hand, it ensures the transportation safety of the product itself, and on the other hand, it adds an application for the user's battery pack 6. While realizing the use of discharge, we have designed solar charging function and AC direct charging function. When the product of this design recognizes that there is power intervention on the charging module 3, it automatically switches to charging mode and stops output.

[0084] It should also be noted that this solution uses the battery pack 6 of electric tools and garden tools as a power supply and storage system for energy storage power, and is a detachable single-use and integrated use solution. A single or multiple packs are boosted by technology to provide power to the inverter, and the inverter module outputs AC and DC voltages through conversion to the control panel. The core technology here is that when the voltages of multiple battery packs 6 are different, we intelligently identify the voltage of the battery pack 6 and manage the discharge by converting from high to low, and ensure that the batteries will not be cross-connected during the discharge process, completely isolating the safety hazards of the batteries. Achieve single and multiple plug-and-play, non-interference in safety, and interrelated management in work. The parallel battery packs 6 are isolated from each other and integrated during work, but there is no cross-connection, and the inverter module, battery pack 6 and charger are integrated as a new technical point and product.

[0085] It should also be noted that this solution has designed safe discharge management and multiple voltage output management, and has also optimized the design of the charging module 3. AC directly charges the battery pack 6 on this product, and the solar 9-30V voltage can also charge the battery pack 6. The charging module 3 is independent, ensuring the balance of voltage and current, unified management, and displaying the status of the battery pack 6 on the LCD. When there is AC or DC charging port voltage input, the device automatically switches to the charging state, ensuring safety of use.

[0086] It should also be noted that the present solution designs independent panel output control buttons and interfaces, and displays the status on the display screen, including the enable status of a certain interface, input and output power, battery pack 6 charge and working status, and automatic identification, switching and integration of work between battery packs 6.

[0087] As an optional embodiment, when the number of battery packs 6, the number of charging modules and the number of boost modules are all N, N is not less than 2; the main control board is also used for:

[0088] Determine whether the electrical equipment is an AC electrical equipment according to the type of the electrical equipment;

[0089] If the power-consuming device is an AC power-consuming device, the N battery packs 6 are controlled to discharge to the AC power-consuming device at the same time, and the current output power of the N battery packs 6 is determined according to the second AC power energy;

[0090] Determine whether the current output power is less than a preset power threshold;

[0091] If the current output power is less than the preset power threshold, the battery pack 6 corresponding to the current maximum voltage of the N battery packs 6 is determined, and the battery pack 6 corresponding to the current maximum voltage is controlled to discharge to the AC power device;

[0092] If the current output power is not less than the preset power threshold, the actual discharge order of the N battery packs 6 is determined according to the magnitude relationship of the current voltages of the N battery packs 6, and the N battery packs 6 are controlled to discharge to the AC power equipment according to the actual discharge order until the voltages of the N battery packs 6 are equal, and then the N battery packs 6 are controlled to discharge to the AC power equipment at the same time.

[0093] In the present invention, considering that there may be multiple battery packs 6 inside the energy storage charging and discharging device, in order to achieve accurate control and boosting of each battery pack 6, this solution will use the same number of charging modules 3 and boosting modules 2 as the number of battery packs 6. In addition, considering that when there are multiple battery packs 6, the charging order of each battery pack 6 in the energy storage charging and discharging device is easily affected by the power required by the electrical equipment and the type of the electrical equipment, the present application first determines whether the electrical equipment is an AC electrical equipment according to the type of the electrical equipment. If the electrical equipment is an AC electrical equipment, it is necessary to control N battery packs 6 to discharge to the AC electrical equipment at the same time, and determine the N battery packs 6 in real time. Current output power. When the current output power of the N battery packs 6 is less than the preset power threshold, it is necessary to control the battery pack with the largest voltage among the N battery packs 6 to output, so as to reduce the power consumption of the battery pack 6; similarly, when the current output power of the N battery packs 6 is not less than the preset power threshold, it is necessary to determine the actual discharge order of the N battery packs 6 according to the magnitude relationship of the current voltages of the N battery packs 6, and control the N battery packs 6 to discharge to the AC power equipment according to the actual discharge order, for example: control the battery packs 6 to discharge to the AC power equipment in order from large to small voltage until the voltages of the battery packs 6 are equal, and then control all the battery packs 6 to discharge to the AC equipment at the same time.

[0094] It should be noted that, in actual applications, while each battery pack 6 is discharging, power outage monitoring is also required. For example, when the voltage of each battery pack 6 drops to a preset voltage threshold, each battery pack 6 is controlled to stop discharging to ensure the safety of the energy storage charging and discharging device.

[0095] The present invention also provides a corresponding embodiment of an electronic device, comprising: the energy storage charging and discharging device as described above, and a housing, wherein the energy storage charging and discharging device is arranged in the housing.

[0096] The electronic device provided in this embodiment corresponds to the above-mentioned energy storage charging and discharging device, and therefore has the same beneficial effects as the above-mentioned energy storage charging and discharging device. Therefore, for the embodiments of the electronic device part, please refer to the description of the embodiments of the energy storage charging and discharging device part, which will not be repeated here.

[0097] It should be noted that if Figure 3 and 4As shown, the AC output port is the AC output port, the DC output port is the DC output port, the working status display screen is the display module 7, the AC charging port is the AC input port, the main control panel is the main control board 1, the core boost board is the boost module 2, the inverter board is the inverter module, and the cooling fan is the cooling device.

[0098] As an optional embodiment, it also includes:

[0099] The heat dissipation device is arranged in the shell.

[0100] In the present invention, considering that once a plurality of batteries, a plurality of charging modules 3, and a plurality of boost modules 2 are arranged inside the energy storage charging and discharging device, it is easy to generate excessive heat during the charging and discharging process, thereby affecting the control function of the main control board 1, so this solution also adds a heat dissipation device inside the electronic device, and the temperature of the electronic device is lowered by the heat dissipation device to reduce the influence of excessive temperature on the control function of the main control board 1.

[0101] It should be noted that, in actual applications, considering that temperature can easily affect the control function of the main control board 1, a temperature detection device and a temperature alarm device can also be set inside the electronic device to monitor the temperature inside the electronic device. Once the temperature exceeds the preset temperature threshold, the temperature alarm device is controlled to sound an alarm so that the user can shut down the energy storage charging and discharging device in time to avoid damage to the main control board 1 or other devices inside the energy storage charging and discharging device due to excessive temperature.

[0102] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0103] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage charging and discharging device, characterized in that: include: Main control board, boost module, charging module, output inverter module, photovoltaic inverter module, battery pack, display module; The main control board is used to send a discharge instruction to the charging module after the first AC power or the first DC power or the photovoltaic DC power is not connected, stop sending the discharge instruction to the charging module after the first AC power or the first DC power or the photovoltaic DC power is connected, and send the second DC power or the second AC power to the power-consuming device based on the type of the power-consuming device; The photovoltaic inverter module is used to convert the first direct current power or the photovoltaic direct current power into a third alternating current power; The charging module is used to transmit the current voltage and current of the battery pack to the main control board, and transmit the first AC power or the third AC power to the battery pack based on the charging instruction transmitted by the main control board, and control the battery pack to output the third DC power to the boost module based on the discharge instruction; The boost module is used to perform a boost operation on the third DC power to generate the second DC power, so that the output inverter module converts the second DC power into the second AC power; The display module is used to display the type of the electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current of the battery pack.

2. The energy storage charging and discharging device according to claim 1, characterized in that: Also includes: DC input port and AC input port; The DC input port is used to output the first direct current power or the photovoltaic direct current power to the main control board and the photovoltaic inverter module respectively; The AC input port is used to transmit the first AC power received to the main control board and the charging module respectively.

3. The energy storage charging and discharging device according to claim 1, characterized in that: Also includes: DC output port and AC output port; The DC output port is used to transmit the second DC power to a DC power-consuming device among the power-consuming devices; The AC output port is used to transmit the second AC power to an AC power-consuming device among the power-consuming devices.

4. The energy storage charging and discharging device according to claim 1, characterized in that: The display module is a touch screen, used to display the type of the electrical equipment and / or the first DC power and / or the second DC power and / or the third DC power and / or the first AC power and / or the second AC power and / or the third AC power and / or the current voltage and current of the battery pack.

5. The energy storage charging and discharging device according to claim 1, characterized in that: The main control board is also used for: Determining whether the current voltage of the battery pack is within a preset voltage range and whether the current current of the battery pack is within a preset current range; If the current voltage of the battery pack is within a preset voltage range and the current of the battery pack is within a preset current range, it is determined that the voltage value and the current value of the battery pack are normal; If the current voltage of the battery pack is not within the preset voltage range or the current of the battery pack is not within the preset current range, it is determined that the voltage value and the current value of the battery pack are abnormal.

6. The energy storage charging and discharging device according to claim 5, characterized in that: The battery pack is detachably connected to the charging module and the boost module.

7. The energy storage charging and discharging device according to claim 1, characterized in that: Also includes: A filtering device is used to filter the third DC power output by the battery pack accordingly, and transmit the filtered third DC power to the boost module.

8. The energy storage charging and discharging device according to any one of claims 1 to 7, characterized in that: When the number of the battery packs, the number of the charging modules and the number of the boost modules are all N, N is not less than 2; the main control board is further used for: Obtaining the rated power of the electrical equipment; Determining current output power of the N battery packs according to the second DC power or the second AC power; The actual discharge order of the N battery packs is determined based on the current output power, the rated power, and the relationship between the current voltage and the current current of the N battery packs, and corresponding discharge instructions are output to the corresponding charging modules in sequence according to the actual discharge order.

9. The energy storage charging and discharging device according to any one of claims 1 to 7, characterized in that: When the number of the battery packs, the number of the charging modules and the number of the boost modules are all N, N is not less than 2; the main control board is further used for: Determining whether the electrical device is an AC electrical device according to the type of the electrical device; If the power-consuming device is an AC power-consuming device, controlling the N battery packs to discharge to the AC power-consuming device at the same time, and determining the current output power of the N battery packs according to the second AC power; Determining whether the current output power is less than a preset power threshold; If the current output power is less than the preset power threshold, determining the battery pack corresponding to the current maximum voltage of the N battery packs, and controlling the battery pack corresponding to the current maximum voltage to discharge to the AC power device; If the current output power is not less than the preset power threshold, the actual discharge order of the N battery packs is determined according to the magnitude relationship of the current voltages of the N battery packs, and the N battery packs are controlled to discharge to the AC power equipment according to the actual discharge order until the voltages of the N battery packs are equal, and then the N battery packs are controlled to discharge to the AC power equipment at the same time.

10. An electronic device, characterized in that: include: The energy storage charging and discharging device and housing according to any one of claims 1 to 9, wherein the energy storage charging and discharging device is arranged in the housing.

11. The electronic device according to claim 10, characterized in that: Also includes: A heat dissipation device is arranged in the shell.

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