Energy storage equipment starting circuit, energy storage inverter and energy storage equipment

Abstract

The utility model provides an energy storage device starting circuit, an energy storage inverter and an energy storage device, the energy storage inverter comprises a power supply and an electric load, and the energy storage device starting circuit comprises a power supply input end, a control signal output end, a system starting button and a channel switching circuit. When the system starting key is triggered by a user, an equipment starting signal is output; the channel switching circuit controls the first connecting end and the second connecting end to be communicated to form a first connecting path, and an equipment starting signal is output to a power supply through the first connecting path so as to control the power supply to access electric energy output by an external battery and supply power to an electric load; the channel switching circuit controls the first connecting end and the third connecting end to be communicated to form a second connecting path, and the equipment starting signal is output to the external battery through the second connecting path so as to control the external battery to supply power to the power source and the electric load. According to the utility model, the start control of the energy storage equipment is realized through the system start button, and the design cost of the energy storage equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to a starting circuit of an energy storage device, an energy storage inverter and an energy storage device. Background Art

[0002] A BMS (Battery Management System) is used to manage and maintain a battery to ensure the safe and efficient use of the battery; a PCS (Power Conversion System, energy storage inverter) is used to realize the bidirectional energy conversion between an energy storage battery and an AC power grid. Usually, the original battery and the PCS are integrally arranged, and the system button can normally control the start and stop of the energy storage device to realize the normal operation of the energy storage device. When the energy storage device is replaced with a third-party battery output, the start and stop of the energy storage device cannot be normally controlled through the system button, resulting in incompatibility between the energy storage device and the third-party battery. In order to make the energy storage device compatible with the third-party battery, the prior art is provided with two switches to respectively control the start of the BMS and the PCS through the two switches, so as to ensure the compatibility between the energy storage device and the third-party battery and maintain normal operation. However, the PCS and the original battery are separately designed, and the number of switches increases accordingly. Each time the energy storage device is turned on and off, two switches need to be triggered in sequence, which not only increases the cost but also causes inconvenience in use. Content of the Utility Model

[0003] The main purpose of the utility model is to propose a starting circuit of an energy storage device, an energy storage inverter and an energy storage device, aiming to realize the compatibility of the energy storage device with different types of batteries while improving the use flexibility of the energy storage device.

[0004] The present utility model provides a starting circuit for an energy storage device, which is applied to an energy storage inverter. The energy storage inverter includes a power source and an electrical load. The starting circuit for the energy storage device includes: a power input terminal for realizing electrical connection between an external battery and the power source; a control signal output terminal for being electrically connected to a controlled terminal of the external battery; a system start button for outputting a device start signal when triggered by a user; a channel switching circuit having a first connection terminal, a second connection terminal, and a third connection terminal. The first connection terminal is connected to an output terminal of the system start button, the second connection terminal is used for accessing the power source, and the third connection terminal is connected to the control signal output terminal. Wherein, when the first connection terminal is connected to the second connection terminal, a first connection path is formed, and the device start signal is output to the power source through the first connection path to control the power source to access the electric energy output by the external battery and supply power to the electrical load; when the first connection terminal is connected to the third connection terminal, a second connection path is formed, and the device start signal is output to the external battery through the second connection path to control the external battery to supply power to the power source and supply power to the electrical load.

[0005] In one embodiment, the channel switching circuit includes: a switching switch including a common terminal, a first terminal, and a second terminal. The common terminal of the switching switch is connected to an output terminal of the system start button, and the first terminal of the switching switch is connected to an input terminal of the power source; a battery type detection device, a detection terminal of the battery type detection device is connected to the control signal output terminal, and a control terminal of the battery type detection device is connected to the second terminal of the switching switch; the battery type detection device is configured to detect the access type of the external battery through the control signal output terminal and control the first connection terminal to be connected to the second connection terminal or control the first connection terminal to be connected to the third connection terminal according to the access type of the external battery.

[0006] In one embodiment, the types of external batteries include standard batteries and user-customized batteries; the battery type detection device is specifically configured to control the first connection terminal to be connected to the third connection terminal when it detects through the control signal output terminal that the access type of the external battery is a standard battery; and control the first connection terminal to be connected to the second connection terminal when it detects through the control signal output terminal that the access type of the external battery is a user-customized battery.

[0007] In one embodiment, the battery type detection device includes: a PCS interface provided with an internal detection device. The detection end of the PCS interface is connected to the control signal output end, and the control end of the PCS interface is connected to the second end of the switching switch. The PCS interface is configured to detect the electrical signal of the control signal output end through the internal detection device, so that the internal detection device detects the interface type of the external battery according to the electrical signal and detects the type of the external battery according to the interface type of the external battery.

[0008] In one embodiment, the channel switching circuit includes: a switching switch, which includes a common end, a first end and a second end. The switching switch is configured to control the connection between the common end and the second end or control the connection between the common end and the first end when triggered by a user.

[0009] The present utility model further provides an energy storage inverter, which includes a power supply, an inverter circuit, an electrical load and the energy storage device starting circuit as described above. Among them, the first input end of the power supply is connected to the second connection end of the channel switching circuit, the second input end of the power supply is connected to the power supply input end, the output end of the power supply is connected to the inverter circuit, and the output end of the inverter circuit is connected to the electrical load.

[0010] In one embodiment, the energy storage device starting circuit includes: a battery interface, which is respectively connected to the power supply input end, the control signal output end and an external battery. The battery interface is configured to realize the electrical connection between the external battery and the power supply input end and the electrical connection between the external battery and the control signal output end.

[0011] In one embodiment, the energy storage device starting circuit includes: a housing, and the system start button is arranged in the housing.

[0012] The present utility model further provides an energy storage device, which includes a battery and the energy storage device starting circuit as described above; and / or, the energy storage inverter as described above.

[0013] In one embodiment, the types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a standard battery, the standard battery includes a battery management system and a battery pack. The input end of the battery management system is connected to the control signal output end, the control end of the battery management system is connected to the battery pack, and the output end of the battery pack is connected to the power supply input end. The battery management system is configured to control the battery pack to supply power to the power supply when receiving the device start signal output by the system start button through the control signal output end.

[0014] In one embodiment, the types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a user-customized battery, the customized battery includes a battery management system and a battery pack. The input end of the battery management system is connected to the control signal output end, the control end of the battery management system is connected to the battery pack, and the output end of the battery pack is connected to the power input end; the battery management system is used to control the battery pack to supply power to the power supply; the power supply is used to convert the electrical energy output by the battery pack when receiving the device start signal output by the system start button through the channel switching circuit, and output the converted electrical energy to the electrical load.

[0015] The present utility model provides a start-up circuit for an energy storage device, an energy storage inverter, and an energy storage device. The energy storage inverter includes a power supply and an electrical load. The start-up circuit for the energy storage device includes a power input end, a control signal output end, a system start button, and a channel switching circuit. When the system start button is triggered by a user, it outputs a device start signal; when the channel switching circuit controls the first connection end and the second connection end to be connected, a first connection path is formed, and the device start signal is output to the power supply through the first connection path to control the power supply to access the electrical energy output by the external battery and supply power to the electrical load; when the channel switching circuit controls the first connection end and the third connection end to be connected, a second connection path is formed, and the device start signal is output to the external battery through the second connection path to control the external battery to supply power to the power supply and supply power to the electrical load. The present utility model realizes the start-up control of the energy storage device through a single system start button, reducing the design cost of the energy storage device. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is the circuit flowchart of the start-up circuit for the energy storage device of the present utility model;

[0018] Figure 2 It is the circuit flowchart of another embodiment of the start-up circuit for the energy storage device of the present utility model;

[0019] Figure 3 It is the circuit flowchart of another embodiment of the start-up circuit for the energy storage device of the present utility model;

[0020] Figure 4 It is the circuit flowchart of the start-up circuit for the energy storage device of the present utility model when accessing a standard battery;

[0021] Figure 5 This is the circuit flow diagram when the start-up circuit of the energy storage device of the present utility model accesses a user-customized battery.

[0022] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0026] It is understandable that the BMS (Battery Management System) is used to manage and maintain the battery to ensure the safe and efficient use of the battery; the PCS (Power Conversion System) is used to realize the bidirectional energy conversion between the energy storage battery and the AC grid. Usually, the original battery and the PCS are integrated, and the system buttons can normally control the start and stop of the energy storage device to realize the normal operation of the energy storage device. When the energy storage device is replaced with a third-party battery output, the start and stop of the energy storage device cannot be normally controlled through the system buttons, resulting in incompatibility between the energy storage device and the third-party battery. In order to make the energy storage device compatible with the third-party battery, the prior art is provided with two switches to separately control the start of the BMS and the PCS through the two switches, so as to ensure the mutual compatibility between the energy storage device and the third-party battery and maintain normal operation. However, the PCS and the original battery are separately designed, and the number of switches increases accordingly. Every time the energy storage device is turned on and off, two switches need to be triggered in sequence, which not only increases the cost but also causes inconvenience in use.

[0027] In order to make the energy storage device compatible with different types of batteries and improve the flexibility of use of the energy storage device, the present utility model proposes an energy storage device starting circuit, which is applied to an energy storage inverter. The energy storage inverter includes a power supply 50 and an electrical load. Refer to Figure 1 , the energy storage device starting circuit includes:

[0028] A power input terminal 10 for realizing the electrical connection between the external battery and the power supply 50;

[0029] A control signal output terminal 20 for electrically connecting with the controlled terminal of the external battery;

[0030] A system start button 30 for outputting a device start signal when triggered by a user;

[0031] A channel switching circuit 40, the channel switching circuit 40 has a first connection end, a second connection end and a third connection end. The first connection end is connected to the output end of the system start button 30, the second connection end is used for accessing the power supply 50, and the third connection end is connected to the control signal output terminal 20; wherein,

[0032] When the first connection end and the second connection end are connected, a first connection path is formed, and the device start signal is output to the power supply 50 through the first connection path to control the power supply 50 to access the electric energy output by the external battery and supply power to the electrical load;

[0033] When the first connection end is in communication with the third connection end, a second connection path is formed, and the device start signal is output to an external battery through the second connection path to control the external battery to supply power to the power supply 50 and supply power to the electrical load.

[0034] It can be understood that when the energy storage device is connected to the original battery, the PCS and the original battery are integrally designed. The user can control the BMS to start and wake up the PCS through the BMS, so as to control the PCS to start. When both the BMS and the PCS are in the working state, the energy storage device can operate normally. When the energy storage device is connected to a third-party battery, the PCS is incompatible with the third-party battery and cannot be started. Even if the user controls the BMS to start, the PCS cannot be woken up through the BMS. When the BMS is in the working state and the PCS is in the non-working state, the energy storage device cannot operate normally. To solve the above problems, two switches can be set in the energy storage device to separately control the start of the BMS and the PCS. When connecting to a third-party battery, first control one switch to trigger the start of the BMS, and then control the other switch to trigger the start of the PCS, so that the BMS and the PCS are finally started. The above method not only increases the cost of the switch, but also causes inconvenience to the user. Therefore, in order to make the energy storage device compatible with different types of batteries, improve the flexibility of using the energy storage device, and reduce the design cost of the energy storage device, the present utility model proposes a start circuit for an energy storage device, which combines the system start button 30 for controlling the start of the external battery and the PCS into one, and controls the start of the external battery and the PCS through one system start button 30 to complete the start control of the energy storage device.

[0035] In this embodiment, the energy storage device startup circuit specifically includes a power input terminal 10, a control signal output terminal 20, a system startup button 30, and a channel switching circuit 40. Among them, the power input terminal 10 is specifically a power line, which is used to establish an electrical connection relationship between the external battery and the power supply 50, so as to transmit the electrical energy of the external battery to the power supply 50, thereby waking up the power supply 50 to start, making both the external battery and the PCS system in a working state; the control signal output terminal 20 is a control line, which is used to transmit the startup signal output by the system startup button 30 to the external battery to control the startup / shutdown of the external battery; the system startup button 30 is used to output a device startup signal to the external battery to control the startup / shutdown of the external battery when triggered by the user; or output a device startup signal to the power supply 50 to control the startup / shutdown of the power supply 50, thereby controlling the startup / shutdown of the PCS system. It should be understood that the PCS startup power supply is used to provide a working power supply for the startup of the PCS system. When the system startup button 30 is triggered by the user, the system startup button 30 outputs a device startup signal to the power supply 50 to wake up the power supply 50, and the power supply 50 outputs power to the PCS startup power supply, thereby controlling the PCS startup power supply to provide a working power supply for the PCS system, achieving the technical effect of the system button normally controlling the startup and shutdown of the energy storage device.

[0036] In practical applications, when the type of the external battery connected to the power input terminal 10 is the standard battery, the standard battery can be compatible with the power supply 50, and the channel switching circuit 40 switches and controls the first connection terminal and the third connection terminal to be connected to form a second connection path. When the user triggers the system start button 30, the device start signal output by the system start button 30 sequentially passes through the channel switching circuit 40 and the control signal output terminal 20 and finally outputs to the standard battery to trigger the start of the standard battery. Since the standard battery and the power supply 50 are mutually compatible, the standard battery outputs electrical energy to the power supply 50 through the power input terminal 10 when starting, waking up the power supply 50 to start. When the type of the external battery connected to the power input terminal 10 is the user-customized battery, the user-customized battery cannot be compatible with the power supply 50, and the channel switching circuit 40 switches and controls the first connection terminal and the second connection terminal to be connected to form a first connection path. When the user triggers the system start button 30, the device start signal output by the system start button 30 passes through the channel switching circuit 40 and then outputs to the power supply 50 to trigger the start of the power supply 50. In this embodiment, the system start button 30 and the channel switching circuit 40 are provided. The channel switching circuit 40 forms a first connection path or a second connection path according to the type of the external battery connected. The device start signal output by the system start button 30 is output to the power supply 50 through the first connection path to enable the PCS to start the power supply to provide working power for the PCS system, thereby controlling the start of the PCS system; or, output to the external battery through the second connection path to control the start of the external battery, so that a single system start button 30 controls the start of the external battery and the PCS system to complete the start control of the energy storage device. It can not only make the energy storage device compatible with different types of batteries, but also improve the flexibility of use of the energy storage device and reduce the design cost of the energy storage device.

[0037] The present utility model provides a starting circuit for an energy storage device, an energy storage inverter, and an energy storage device. The energy storage inverter includes a power supply 50 and an electrical load. The starting circuit for the energy storage device includes: a power input terminal 10, a control signal output terminal 20, a system start button 30, and a channel switching circuit 40. Among them, the channel switching circuit 40 has a first connection terminal, a second connection terminal, and a third connection terminal. The first connection terminal is connected to the output terminal of the system start button 30, the second connection terminal is used to connect to the power supply 50, and the third connection terminal is connected to the control signal output terminal 20. Through the above settings, the channel switching circuit 40 forms a first connection path or a second connection path according to the access type of the external battery, and forms a second connection path when the access type of the external battery is a standard battery, so that the device start signal of the system start button 30 is output to the standard battery through the second connection path, thereby controlling the start of the standard battery; and forms a first connection path when the access type of the external battery is a user-customized battery, so that the device start signal of the system start button 30 is output to the power supply 50 through the first connection path, thereby controlling the start of the power supply 50. With such a setting, the starting circuit for the energy storage device does not need to be provided with multiple system start buttons 30. Only by providing one system start button 30 and a channel switching circuit 40, the starting control of the energy storage device can be completed. Under the condition that the energy storage device is compatible with different types of batteries, the design cost of the energy storage device is reduced, and the flexibility of use of the energy storage device is improved. According to the type of the externally connected battery, the present utility model forms a first connection path or a second connection path through the channel switching circuit 40, and the device start signal output by the system start button 30 is output to the power supply 50 through the first connection path, or output to the external battery through the second connection path, so that a single system start button 30 controls the start of the external battery and the PCS system to complete the starting control of the energy storage device. It can not only make the energy storage device compatible with different types of batteries, but also improve the flexibility of use of the energy storage device, and reduce the design cost of the energy storage device.

[0038] In an embodiment, referring to Figure 2 , the channel switching circuit 40 includes:

[0039] A changeover switch 420, the changeover switch 420 includes a common terminal, a first terminal, and a second terminal. The common terminal of the changeover switch 420 is connected to the output terminal of the system start button 30, and the first terminal of the changeover switch 420 is connected to the input terminal of the power supply 50;

[0040] A battery type detection device 410, the detection terminal of the battery type detection device 410 is connected to the control signal output terminal 20, and the control terminal of the battery type detection device 410 is connected to the second terminal of the changeover switch 420;

[0041] The battery type detection device 410 is configured to detect the access type of an external battery through the control signal output terminal 20, and control the first connection terminal to communicate with the second connection terminal, or control the first connection terminal to communicate with the third connection terminal according to the access type of the external battery.

[0042] In this embodiment, the channel switching circuit 40 includes a switching switch 420 and a battery type detection device 410. Among them, the switching switch 420 can be implemented by a transfer switch, a dual power supply switching switch 420, a toggle switch or other switches that can be used to switch connection paths.

[0043] In practical applications, the battery type detection device 410 is configured to detect the access type of an external battery through the control signal output terminal 20, and control the switching switch 420 to switch and connect to the first end or the second end according to the access type of the external battery. In practical applications, the battery type detection device 410 detects the access type of an external battery through the control signal output terminal 20, and controls the switching switch 420 to switch to the second end to communicate with the common terminal according to the access type of the external battery, so that the first connection terminal of the channel switching circuit 40 communicates with the third connection terminal, so that the system start button 30 can directly control the start / stop of the external battery; or control the switching switch 420 to switch to the first end to communicate with the common terminal according to the access type of the external battery, so that the first connection terminal of the channel switching circuit 40 communicates with the second connection terminal, so that the system start button 30 can directly control the start / stop of the power supply 50.

[0044] In one embodiment, the types of external batteries include standard batteries and user-customized batteries;

[0045] The battery type detection device 410 is specifically configured to control the first connection terminal to communicate with the third connection terminal when the access type of the external battery detected through the control signal output terminal 20 is a standard battery;

[0046] When the access type of the external battery detected through the control signal output terminal 20 is a user-customized battery, control the first connection terminal to communicate with the second connection terminal.

[0047] In this embodiment, when the battery type detection device 410 detects through the control signal output terminal 20 that the access type of the external battery is the standard battery, the battery type detection device 410 controls the change-over switch 420 to switch to connect the second terminal to the common terminal. At this time, when the user triggers the system start button 30, the device start signal output by the system start button 30 passes through the common terminal, the second terminal, the battery type detection device 410, and the control signal output terminal 20 in sequence and is output to the standard battery to control the start / stop of the standard battery; when the battery type detection device 410 detects through the control signal output terminal 20 that the access type of the external battery is the user-customized battery, the battery type detection device 410 controls the change-over switch 420 to switch to connect the first terminal to the common terminal. At this time, when the user triggers the system start button 30, the device start signal output by the system start button 30 passes through the common terminal and the first terminal in sequence and is output to the power supply 50 to control the start / stop of the power supply 50.

[0048] In one embodiment, the battery type detection device 410 includes:

[0049] A PCS interface, an internal detection device is provided in the PCS interface, the detection terminal of the PCS interface is connected to the control signal output terminal, and the control terminal of the PCS interface is connected to the second terminal of the change-over switch;

[0050] The PCS interface is used to detect the electrical signal of the control signal output terminal through the internal detection device, so that the internal detection device detects the interface type of the external battery according to the electrical signal and detects the type of the external battery according to the interface type of the external battery.

[0051] In this embodiment, the battery type detection device 410 is implemented by using a PCS interface. An internal detection device is provided in the PCS interface. The control signal output terminal 20 receives the electrical signal output by the external battery. The PCS interface is used to receive the electrical signal of the control signal output terminal 20 through the internal detection device, so that the internal detection device detects the access type of the external battery according to the electrical signal.

[0052] In practical applications, the PCS interface receives the electrical signal output by the external battery through the control signal output terminal 20. When the internal detection device of the PCS interface detects that the access type of the external battery is the standard battery according to the electrical signal of the external battery, the PCS interface outputs an electrical signal to the changeover switch 420 through the second terminal of the changeover switch 420, so that the changeover switch 420 connects the second terminal to the common terminal, so that the first connection terminal and the third connection terminal of the channel switching circuit 40 are connected; when the internal detection device of the PCS interface detects that the access type of the external battery is the user-customized battery according to the electrical signal of the external battery, the PCS interface outputs an electrical signal to the changeover switch 420 through the second terminal of the changeover switch 420, so that the changeover switch 420 connects the first terminal to the common terminal, so that the first connection terminal and the second connection terminal of the channel switching circuit 40 are connected.

[0053] In one embodiment, the channel switching circuit 40 includes:

[0054] A changeover switch 420, the changeover switch 420 includes a common terminal, a first terminal and a second terminal, and the changeover switch 420 is configured to control the connection between the common terminal and the second terminal, or control the connection between the common terminal and the first terminal when triggered by the user.

[0055] In this embodiment, the changeover switch 420 can be implemented by a transfer switch, a dual-power changeover switch 420, a toggle switch or other switches that can be used to switch connection paths. For example, taking the changeover switch 420 implemented by a dual-power changeover switch 420 as an example for illustration. The dual-power transfer switch has two operation modes: manual and automatic. In the automatic mode, the dual-power transfer switch can automatically switch between the first connection path and the second connection path according to the access type of the external battery; in the manual mode, the user can manually switch the first connection path to the second connection path or switch the second connection path to the first connection path through manual operation methods such as a mechanical knob. Such a setting improves the usage flexibility of the energy storage device, enabling the user to select a suitable operation method according to the actual situation.

[0056] The present invention also proposes an energy storage inverter, which includes a power supply 50, an inverter circuit 60, an electrical load and the energy storage device starting circuit as described in the above embodiments; wherein, the first input terminal of the power supply 50 is connected to the second connection terminal of the channel switching circuit 40, the second input terminal of the power supply 50 is connected to the power input terminal 10, the output terminal of the power supply 50 is connected to the inverter circuit 60, and the output terminal of the inverter circuit 60 is connected to the electrical load.

[0057] In this embodiment, when the power supply 50 is started, the power supply 50 is used to provide a working power supply for the inverter circuit 60 to help the inverter circuit 60 reach the normal working state. When the inverter circuit 60 reaches the normal working state, it converts the DC electrical energy of the external battery into AC electrical energy to supply power to the electrical load.

[0058] Optionally, the standard battery and the user-customized battery can be solar batteries, wind energy batteries or other batteries for outputting DC electrical energy. The electrical load can be a low-voltage AC device or a power grid.

[0059] In practical applications, when the type of the external battery connected to the power input terminal 10 is a standard battery, the channel switching circuit 40 switches to control the first connection terminal and the third connection terminal to be connected to form a second connection path. The device start signal output by the system start button 30 sequentially passes through the channel switching circuit 40 and the control signal output terminal 20 and is finally output to the standard battery to trigger the start of the standard battery. When starting, the standard battery outputs DC electrical energy to the power supply 50 through the power input terminal 10, wakes up the power supply 50 to start so that the power supply 50 is connected to the standard battery to output DC electrical energy, and outputs the DC electrical energy to the inverter circuit 60. When the inverter circuit 60 receives the DC electrical energy of the standard battery connected through the power supply 50, it converts the DC electrical energy of the standard battery (such as solar photovoltaic cells, wind power generation, etc.) into AC electrical energy for supply to low-voltage AC devices or connection to the power grid.

[0060] Similarly, when the type of the external battery connected to the power input terminal 10 is a user-customized battery, the channel switching circuit 40 switches to control the first connection terminal and the second connection terminal to be connected to form a first connection path. The device start signal output by the system start button 30 passes through the channel switching circuit 40 and is then output to the power supply 50 to trigger the start of the power supply 50. The power supply 50 is connected to the standard battery to output DC electrical energy and outputs the DC electrical energy to the inverter circuit 60. When the inverter circuit 60 receives the DC electrical energy of the standard battery connected through the power supply 50, it converts the DC electrical energy of the standard battery (such as solar photovoltaic cells, wind power generation, etc.) into AC electrical energy for supply to low-voltage AC devices or connection to the power grid.

[0061] In one embodiment, the energy storage device starting circuit includes:

[0062] A battery interface, which is respectively connected to the power input terminal 10, the control signal output terminal 20 and the external battery;

[0063] The battery interface is used to realize the electrical connection between the external battery and the power input terminal 10, and to realize the electrical connection between the external battery and the control signal output terminal 20.

[0064] It can be understood that in this embodiment, the battery interface includes a first battery interface and a second battery interface. The first battery interface is disposed between the external battery and the power input terminal 10 for implementing an electrical connection path between the external battery and the power input terminal 10. The second battery interface is disposed between the external battery and the control signal output terminal 20 for implementing an electrical connection path between the external battery and the control signal output terminal 20.

[0065] In one embodiment, the energy storage device startup circuit includes:

[0066] A housing, and the system startup button 30 is disposed within the housing.

[0067] It can be understood that in this embodiment, the energy storage device startup circuit is further provided with a housing, which is used to have a space for accommodating the system startup button 30. In practical applications, the housing serves as the outer layer of the system startup button 30, playing a role in protecting the internal structure of the housing and preventing external factors of the housing, such as dust and moisture, from damaging the inside of the system startup button 30. Optionally, the housing can be implemented using materials such as plastic, metal, and silicone, which are not limited in this embodiment.

[0068] The present utility model further proposes an energy storage device, which includes a battery and the energy storage device startup circuit as described in the above embodiments; and / or, the energy storage inverter as described in the above embodiments. When the energy storage device adopts the technical solution of the energy storage device startup circuit described in the above embodiments, it at least has all the beneficial effects brought by the technical solution of the energy storage device startup circuit described in the above embodiments. When the energy storage device adopts the technical solution of the energy storage inverter described in the above embodiments, it at least has all the beneficial effects brought by the technical solution of the energy storage inverter described in the above embodiments. Details are not described herein one by one.

[0069] In one embodiment, the types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a standard battery,

[0070] The standard battery includes a battery management system and a battery pack. The input end of the battery management system is connected to the control signal output terminal 20, the control end of the battery management system is connected to the battery pack, and the output end of the battery pack is connected to the power input terminal 10;

[0071] The battery management system is configured to control the battery pack to supply power to the power supply 50 when receiving the device startup signal output by the system startup button 30 via the control signal output terminal 20.

[0072] It can be understood that in this embodiment, the access type of the external battery is the standard battery. The channel switching circuit 40 switches and controls the first connection end and the third connection end to be connected to form a second connection path. When the user triggers the system start button 30, the device start signal output by the system start button 30 sequentially passes through the switch 420, the battery type detection device 410, and the control signal output end 20 and is output to the battery management system. When the battery management system receives the device start signal output by the system start button 30 through the control signal output end 20, it controls the battery pack to output DC electric energy to the power supply 50. The power supply 50 accesses the standard battery to output DC electric energy and outputs the DC electric energy to the inverter circuit 60. When the inverter circuit 60 receives the DC electric energy of the standard battery accessed through the power supply 50, it converts the DC electric energy of the standard battery (such as solar photovoltaic cells, wind power generation, etc.) into AC electric energy for supplying to low-voltage AC devices or connecting to the power grid.

[0073] In one embodiment, the types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a user-customized battery,

[0074] The customized battery includes a battery management system and a battery pack. The input end of the battery management system is connected to the control signal output end 20. The control end of the battery management system is connected to the battery pack. The output end of the battery pack is connected to the power input end 10;

[0075] The battery management system is used to control the battery pack to supply power to the power supply 50;

[0076] The power supply 50 is used to convert the electric energy output by the battery pack when receiving the device start signal output by the system start button 30 through the channel switching circuit 40 and output the converted electric energy to the electrical load.

[0077] It can be understood that in this embodiment, the access type of the external battery is a user-customized battery. The channel switching circuit 40 switches and controls the first connection end and the second connection end to be connected to form a first connection path. When the user triggers the system start button 30, the device start signal output by the system start button 30 is output to the power supply 50 after passing through the switch 420 to trigger the power supply 50 to start. It should be understood that since the battery management system is in a low-power operation state, the battery management system can still control the battery pack to output DC electric energy to the power supply 50. The power supply 50 accesses the standard battery to output DC electric energy and outputs the DC electric energy to the inverter circuit 60. When the inverter circuit 60 receives the DC electric energy of the standard battery accessed through the power supply 50, it converts the DC electric energy of the standard battery (such as solar photovoltaic cells, wind power generation, etc.) into AC electric energy for supplying to low-voltage AC devices or connecting to the power grid.

[0078] The above embodiments are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A starting circuit for an energy storage device, characterized in that, Applied to an energy storage inverter, the energy storage inverter includes a power supply and an electrical load, and the energy storage device starting circuit includes: A power input terminal for realizing the electrical connection between an external battery and the power supply; A control signal output terminal for being electrically connected to the controlled terminal of the external battery; A system start button for outputting a device start signal when triggered by a user; A channel switching circuit, the channel switching circuit has a first connection terminal, a second connection terminal and a third connection terminal, the first connection terminal is connected to the output terminal of the system start button, the second connection terminal is used for accessing the power supply, and the third connection terminal is connected to the control signal output terminal; wherein, When the first connection terminal is in communication with the second connection terminal, a first connection path is formed, and the device start signal is output to the power supply through the first connection path to control the power supply to access the electric energy output by the external battery and supply power to the electrical load; When the first connection terminal is in communication with the third connection terminal, a second connection path is formed, and the device start signal is output to the external battery through the second connection path to control the external battery to supply power to the power supply and supply power to the electrical load.

2. The energy storage device starting circuit according to claim 1, wherein The channel switching circuit includes: A switching switch, the switching switch includes a common terminal, a first terminal and a second terminal, the common terminal of the switching switch is connected to the output terminal of the system start button, and the first terminal of the switching switch is connected to the input terminal of the power supply; A battery type detection device, the detection terminal of the battery type detection device is connected to the control signal output terminal, and the control terminal of the battery type detection device is connected to the second terminal of the switching switch; The battery type detection device is used to detect the access type of the external battery through the control signal output terminal, and control the first connection terminal to be in communication with the second connection terminal, or control the first connection terminal to be in communication with the third connection terminal according to the access type of the external battery.

3. The energy storage device starting circuit according to claim 2, characterized in that, The types of external batteries include standard batteries and user-customized batteries; Specifically, when the battery type detection device detects that the access type of the external battery is a standard battery through the control signal output terminal, it controls the first connection terminal to be in communication with the third connection terminal; When it is detected through the control signal output terminal that the access type of the external battery is a user-customized battery, it controls the first connection terminal to be in communication with the second connection terminal.

4. The starting circuit of the energy storage device according to claim 2, characterized in that, The battery type detection device includes: A PCS interface, an internal detection device is provided in the PCS interface, the detection terminal of the PCS interface is connected to the control signal output terminal, and the control terminal of the PCS interface is connected to the second terminal of the switching switch; The PCS interface is used to detect the electrical signal of the control signal output terminal through the internal detection device, so that the internal detection device detects the interface type of the external battery according to the electrical signal and detects the type of the external battery according to the interface type of the external battery.

5. The starting circuit of the energy storage device according to claim 1, characterized in that, The channel switching circuit includes: A switching switch, the switching switch includes a common terminal, a first terminal and a second terminal, and the switching switch is used to control the common terminal to be in communication with the second terminal, or control the common terminal to be in communication with the first terminal when triggered by a user.

6. A energy storage inverter, characterized in that, It includes a power supply, an inverter circuit, an electrical load, and a starting circuit for an energy storage device as described in any one of claims 1-5; wherein, a first input terminal of the power supply is connected to a second connection terminal of the channel switching circuit, a second input terminal of the power supply is connected to the power supply input terminal, an output terminal of the power supply is connected to the inverter circuit, and an output terminal of the inverter circuit is connected to the electrical load.

7. The energy storage inverter according to claim 6, wherein The starting circuit for the energy storage device includes: A battery interface, which is respectively connected to the power supply input terminal, the control signal output terminal, and an external battery; The battery interface is used to realize the electrical connection between the external battery and the power supply input terminal, and to realize the electrical connection between the external battery and the control signal output terminal.

8. The energy storage inverter according to claim 6, characterized in that, The starting circuit for the energy storage device includes: A housing, and the system start button is arranged inside the housing.

9. An energy storage device, characterized in that, It includes a battery and a starting circuit for an energy storage device as described in any one of claims 1-5; And / or, an energy storage inverter as described in any one of claims 6-8.

10. The energy storage device according to claim 9, characterized in that, The types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a standard battery, The standard battery includes a battery management system and a battery pack. An input terminal of the battery management system is connected to the control signal output terminal, a control terminal of the battery management system is connected to the battery pack, and an output terminal of the battery pack is connected to the power supply input terminal; The battery management system is used to control the battery pack to supply power to the power supply when receiving a device start signal output by the system start button through the control signal output terminal.

11. The energy storage device according to claim 9, wherein The types of external batteries include standard batteries and user-customized batteries. When the access type of the external battery is a user-customized battery, The customized battery includes a battery management system and a battery pack. An input terminal of the battery management system is connected to the control signal output terminal, a control terminal of the battery management system is connected to the battery pack, and an output terminal of the battery pack is connected to the power supply input terminal; The battery management system is used to control the battery pack to supply power to the power supply; The power supply is used to convert the electrical energy output by the battery pack into electrical energy when receiving a device start signal output by the system start button through the channel switching circuit, and output the converted electrical energy to the electrical load.

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