Adapter

Abstract

An adapter (100), comprising: at least one first connecting portion (1) configured to be connected to a first battery pack (200); at least one second connecting portion (2) configured to be connected to a second battery pack (300); a first power supply port (3) configured to be connected to a charger (400); a second power supply port (4) configured to be connected to an output end of a photovoltaic device (500); and a conversion circuit (5), wherein the first connecting portion (1) is electrically connected to the first power supply port (3) and the second power supply port (4) by means of the conversion circuit (5), and the second connecting portion (2) is electrically connected to the first power supply port (3) and the second power supply port (4) by means of the conversion circuit (5); the adapter (100) is configured to at least have a first working mode and a second working mode; in the first working mode, the electric energy provided by the charger (400) is used for charging at least one of the first battery pack (200) and the second battery pack (300); and in the second working mode, the electric energy provided by the photovoltaic device (500) is used for charging at least one of the first battery pack (200) and the second battery pack (300).

Description

Adapter

[0001] This application claims priority to the Chinese patent application No. 202410436983.7, filed on April 11, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of power supply, for example, to an adapter. BACKGROUND

[0003] Currently, the working modes of the adapter of the charger can be divided into an alternating current mode and a direct current mode. The alternating current mode can be understood as that the alternating current power provides electric energy, which is converted into direct current power by the adapter to power the load or the battery pack. The direct current mode can be understood as that the energy storage battery pack connected to the adapter charges the power supply battery pack connected to the adapter, so that the power supply battery pack powers the load.

[0004] However, when the user uses the charger device outdoors, if there is no alternating current power source around, the energy storage battery connected to the adapter needs to charge the power supply battery connected to the adapter. During use, if both the energy storage battery and the power supply battery are consumed, the charger device cannot continue to provide electric energy for the load, thereby affecting the user's experience.

[0005] This section provides background information related to the present application, which can not be prior art. SUMMARY

[0006] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide an adapter capable of improving user experience.

[0007] To achieve the above object, the present application adopts the following technical solution: an adapter, comprising: a casing; at least one first connecting part configured to connect a first battery pack; at least one second connecting part configured to connect a second battery pack; a first power port configured to connect at least a charger to access the direct current electric energy output by the charger; a second power port configured to connect an output end of a photovoltaic device; a conversion circuit, the first connecting part being electrically connected to the first power port and the second power port through the conversion circuit, and the second connecting part being electrically connected to the first power port and the second power port through the conversion circuit; the adapter being configured to include at least a first working mode and a second working mode; in the first working mode, the electric energy provided by the charger charges at least one of the first battery pack and the second battery pack; in the second working mode, the electric energy provided by the photovoltaic device charges at least one of the first battery pack and the second battery pack.

[0008] In some embodiments, the adapter is further configured to include a third operating mode; in the third operating mode, the first battery pack charges the second battery pack.

[0009] In some embodiments, the first power port, the first bonding portion, and the second bonding portion are electrically connected to the first node of the conversion circuit.

[0010] In some embodiments, the first bonding portion is electrically connected to the first node of the conversion circuit; the second bonding portion is electrically connected to the second node of the conversion circuit.

[0011] In some embodiments, the adapter further includes a bidirectional switch, the bidirectional switch includes a first moving contact, a first stationary contact, and a second stationary contact; the first moving contact is electrically connected to the second power port; the first stationary contact is electrically connected to the first node of the conversion circuit; the second stationary contact is electrically connected to the second node of the conversion circuit.

[0012] In some embodiments, when the first moving contact is electrically connected to the first stationary contact, the conversion circuit is configured to convert the voltage provided by the output end of the photovoltaic device into a voltage adapted to the second bonding portion; when the first moving contact is electrically connected to the second stationary contact, the conversion circuit is configured to convert the voltage provided by the output end of the photovoltaic device into a voltage adapted to the first bonding portion.

[0013] In some embodiments, the conversion circuit includes a first bidirectional DCDC converter and a second bidirectional DCDC converter; the first bidirectional DCDC converter and the second bidirectional DCDC converter are connected in parallel between the first node and the second node.

[0014] In some embodiments, when the first moving contact is electrically connected to the first stationary contact, the first bidirectional DCDC converter converts the voltage provided by the output end of the photovoltaic device into a voltage adapted to the second bonding portion; when the first moving contact is electrically connected to the second stationary contact, the second bidirectional DCDC converter converts the voltage provided by the output end of the photovoltaic device into a voltage adapted to the first bonding portion.

[0015] In some embodiments, the first bonding portion includes a first connection terminal; the adapter further includes a first high-side driver; the first high-side driver includes a first input end, a first output end, and a first control end; the first input end is electrically connected to the first node of the conversion circuit; the first output end is electrically connected to the first connection terminal; the first control end is configured to receive a first control signal, and according to the first control signal, control the working state of the first high-side driver.

[0016] In some embodiments, the second combining part includes a second connection terminal and a second high-side driver; the second high-side driver includes a second input end, a second output end and a second control end; the second input end is electrically connected with the first node; the second output end is electrically connected with the second connection terminal; and the second control end is configured to receive a second control signal and control the working state of the second high-side driver according to the second control signal.

[0017] In some embodiments, the third high-side driver is further included.

[0018] The third high-side driver includes a third input end, a third output end and a third control end; the third input end is electrically connected with the first node of the conversion circuit; the third output end is electrically connected with the second combining part; and the third control end is configured to receive a third control signal and control the working state of the third high-side driver according to the third control signal.

[0019] In some embodiments, the first combining part includes a first connection terminal; the adapter further includes a fourth high-side driver; the fourth high-side driver includes a fourth input end, a fourth output end and a fourth control end; the fourth input end is electrically connected with the first connection terminal; the fourth output end is electrically connected with the first node of the conversion circuit; and the fourth control end is configured to receive a fourth control signal and control the working state of the fourth high-side driver according to the fourth control signal.

[0020] In some embodiments, a first current detection module is further included; the first current detection module is electrically connected with the first connection terminal; and the first current detection module is configured to detect a first current value at the first connection terminal to control the first control signal provided to the first high-side driver.

[0021] In some embodiments, a second current detection module is further included; the second current detection module is electrically connected with the second connection terminal; and the second current detection module is configured to detect a second current value at the second connection terminal to control the second control signal provided to the second high-side driver.

[0022] In some embodiments, an instruction input module is further included; the instruction input module is configured to acquire an input control instruction to control the working mode of the adapter according to the input control instruction.

[0023] The application adopts the following technical scheme: an adapter for connecting a battery pack, comprising: a casing; at least one first connecting part configured to connect a first battery pack; at least one second connecting part configured to connect a second battery pack; the adapter is configured to have at least a first working mode and a second working mode; in the first working mode, the adapter is configured to charge the first battery pack or the second battery pack using electric energy from external alternating current; in the second working mode, the adapter is configured to charge the first battery pack or the second battery pack using electric energy from a photovoltaic device; wherein the second battery pack electrically connected to the adapter is configured to also receive electric energy output by the first battery pack electrically connected to the adapter.

[0024] In some embodiments, the energy of the first battery pack is greater than or equal to 1 kW·h and less than or equal to 30 kW·h; the energy of the second battery pack is greater than or equal to 0.1 kW·h and less than or equal to 2 kW·h. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a structural perspective view of an adapter provided by an embodiment of the application;

[0026] Fig. 2 is an electrical schematic diagram of an adapter provided by an embodiment of the application;

[0027] Fig. 3 is a circuit structure schematic diagram of an adapter provided by an embodiment of the application. DETAILED DESCRIPTION

[0028] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0029] In this application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0030] In this application, the term "and / or", is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B, can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this application generally represents that the front and rear associated objects are in a "and / or" relationship.

[0031] In this application, the terms "connected", "coupled", "engage", "engagement", "mounting" can be direct connection, coupling or mounting, or indirect connection, coupling or mounting through an intermediate part. For example, direct connection refers to two parts or components connected together without an intermediate part, and indirect connection refers to two parts or components connected to at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0032] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with quantities or conditions (for example, "about", "approximately", "substantially" and the like) include the values described and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative terms can refer to the indicated value plus or minus a certain percentage (for example, 1%, 5%, 10% or more). The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to plus or minus a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0033] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0034] In this application, the terms "up", "down", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it should also be understood in the context that when referring to one element connected to another element "up" or "down", it can not only be directly connected to another element "up" or "down", but also indirectly connected to another element "up" or "down" through an intermediate element. It should also be understood that the terms "up", "down", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the lower front side and the lower back side, etc.

[0035] In the present application, the terms "controller control module", "processor", "central processing unit", "CPU", "MCU" can be interchangeable. In using the unit "controller", "processor", "central processing unit", "CPU", or "MCU" to perform a specific function, unless otherwise specified, these functions can be performed by a single above-mentioned unit or multiple above-mentioned units.

[0036] In the present application, the terms "device", "module" or "unit" to achieve a specific function, it can be realized by hardware or software form.

[0037] In the present application, the terms "calculate", "judge", "control", "determine", "identify" and the like refer to the operation and process of a computer system or similar electronic computing device (for example, controller, processor, etc.).

[0038] In order to clearly illustrate the technical solutions of the present application, the upper side, lower side, left side, right side, front side and rear side are defined in the drawings of the specification.

[0039] Figure 1 is a structural perspective view of an adapter provided by an embodiment of the present application, and Figure 2 is an electrical schematic diagram of the adapter provided by an embodiment of the present application. Referring to Figures 1 and 2, the present embodiment provides an adapter 100, which includes a housing 101, at least one first combination part 1, at least one second combination part 2, a first power port 3, a second power port 4 and a conversion circuit 5. Among them, the first combination part 1 is used to connect the first battery pack 200, and the second combination part 2 is used to connect the second battery pack 300. The first power interface 3 is used to connect at least a charger 400 to access the direct current power output by the charger 400. The second power interface 4 is used to connect the output end of the photovoltaic device 500. The first combination part 1 is electrically connected to the first power port 3 and the second power port 4 through the conversion circuit 5, and the second combination part 2 is electrically connected to the first power port 3 and the second power port 4 through the conversion circuit 5. The adapter 100 is configured to include at least a first working mode and a second working mode. In the first working mode, the power provided by the charger 400 charges the first battery pack 200 and / or the second battery pack 300. In the second working mode, the power provided by the photovoltaic device 500 charges the first battery pack 200 and / or the second battery pack 300. It should be understood that the above-mentioned first combination part 1 and second combination part 2 include connection terminals capable of being electrically connected to the terminals of the battery pack.

[0040] The first connecting portion 1, the second connecting portion 2, the first power port 3, the second power port 4, and at least part of the conversion circuit 5 are received in the casing 101. The casing 101 is configured to protect the first connecting portion 1, the second connecting portion 2, the first power port 3, the second power port 4, and the conversion circuit 5. In an optional embodiment, the casing 101 is formed of an insulating material, and the casing 101 is further configured to protect a user from electric shock.

[0041] The first battery pack 200 and / or the second battery pack 300 can include, but are not limited to, a secondary battery such as a lithium battery, a lead-acid battery, etc. The first battery pack 200 and the second battery pack 300 are configured to store electrical energy and provide electrical energy to a load when connected to the load. In an optional embodiment, at least one of the first battery pack 200 can include a lithium iron phosphate battery to enable the first battery pack 200 to have a high energy density and be capable of high-power discharge. In another optional embodiment, at least one of the second battery pack 300 can include a lithium battery pack to enable the second battery pack 300 to provide strong power to the load. In an optional embodiment, the first battery pack 200 has an energy greater than or equal to 1 kW·h and less than or equal to 30 kW·h. In some embodiments, the first battery pack 200 has an energy equal to 2 kW·h. In some embodiments, the first battery pack 200 has an energy greater than or equal to 3 kW·h. In some embodiments, the first battery pack 200 has an energy greater than or equal to 4 kW·h. In some embodiments, the first battery pack 200 has an energy greater than or equal to 5 kW·h. In some embodiments, the first battery pack 200 has an energy greater than or equal to 6 kW·h. In some embodiments, the second battery pack 300 has an energy greater than or equal to 0.1 kW·h and less than or equal to 2 kW·h. In some embodiments, the second battery pack 300 has an energy greater than or equal to 0.1 kWh. In some embodiments, the second battery pack 300 has an energy greater than or equal to 0.4 kWh. In some embodiments, the second battery pack 300 has an energy greater than or equal to 0.6 kWh. In some embodiments, the second battery pack 300 has an energy greater than or equal to 1 kWh. In some embodiments, the first battery pack 200 or the second battery pack 300 has a rated voltage greater than or equal to 21 V and less than or equal to 65 V. In some embodiments, the first battery pack 200 or the second battery pack 300 has a rated voltage greater than or equal to 40 V and less than or equal to 60 V. In some embodiments, the first battery pack 200 or the second battery pack 300 has a rated voltage greater than or equal to 42 V and less than or equal to 56 V. In some embodiments, the first battery pack 200 or the second battery pack 300 has a rated voltage greater than or equal to 48 V and less than or equal to 56 V.

[0042] The first power port 3 is used to connect the charger 400. In an optional embodiment, as shown in FIG. 1, the charger 400 includes a power port 401 and an adapter port 402, the power port 401 is used to connect a power supply, and the adapter port 402 is used to connect the first power port of the adapter. The charger 400 can connect an alternating current power supply or a direct current power supply, and convert the power provided by the power supply into direct current suitable for the first battery pack 200 or the second battery pack 300 connected to the adapter 100, so that the power provided by the alternating current power supply or the direct current power supply is transmitted to the first power port 3. In an optional embodiment, the first power port 3 can also connect other adapters to access the power output by the battery pack on the other adapters, so that the application scenarios of the adapter are more extensive, and the user experience is further improved.

[0043] The second power port 4 is used to connect the output end of the photovoltaic device 500. The photovoltaic device 500 can convert the energy of sunlight into direct current by using the photovoltaic effect, so the photovoltaic device 500 has the advantages of being clean, efficient, and renewable. By connecting the second power port 4 to the output end of the photovoltaic device 500, the first battery pack 200 and / or the second battery pack 300 can be charged using the power provided by the photovoltaic device 500, thereby facilitating cost reduction and sustainable development. In an optional embodiment, the output end of the photovoltaic device 500 provides a voltage range of 7V to 24V. In this way, when the power in the battery pack is used up, in addition to being able to connect to the mains for charging, solar power can also be used for charging, thereby improving the user experience in terms of charging convenience and diversity.

[0044] The adapter 100 can also include a control module, which controls the state of the conversion circuit 5, so that the adapter 100 includes at least a first working mode and a second working mode. In the first working mode and the second working mode, the power sources of the first battery pack 200 and / or the second battery pack 300 are different. In the first working mode, the power provided by the charger 400 charges the first battery pack 200 and / or the second battery pack 300. In the second working mode, the power provided by the photovoltaic device 500 charges the first battery pack 200 and / or the second battery pack 300. In this way, the charging power of the first battery pack 200 and / or the second battery pack 300 has multiple different sources, so that when a certain power source does not meet the use conditions, the first battery pack 200 and / or the second battery pack 300 can be charged by other power sources, thereby improving the applicability of the adapter.

[0045] In this embodiment, the first connecting part and the second connecting part of the adapter are electrically connected to the first power port and the second power port through the conversion circuit respectively, the first connecting part is used to connect the first battery pack, the second connecting part is used to connect the second battery pack, the first power port is used to connect the charger, and the second power port is used to connect the output end of the photovoltaic device, so that the charger connected to the first power port or the photovoltaic device connected to the second power port can charge the first connecting part and / or the second connecting part through the conversion circuit. By configuring the adapter to include at least a first working mode in which the charger provides power to charge the first battery pack and / or the second battery pack and a second working mode in which the photovoltaic device provides power to charge the first battery pack and / or the second battery pack, the adapter can charge the first battery pack and / or the second battery pack with power provided by the photovoltaic device in the application scenario without the charger power supply, so that the use scenario of the adapter is more extensive, and the user experience is improved. In addition, using the green resource photovoltaic device to charge the first battery pack and / or the second battery pack can reduce costs and is conducive to sustainable development of energy.

[0046] Optionally, the adapter 100 is also configured to include a third working mode. In the third working mode, the first battery pack 200 charges the second battery pack 300. In an optional embodiment, the first connecting part 1 is also electrically connected to the second connecting part 2 through the conversion circuit 5, so that the first battery pack 200 connected to the first connecting part 1 can be electrically connected to the second battery pack 300 connected to the second connecting part 2, thereby enabling the first battery pack 200 to charge the second battery pack 300 by controlling the state of the conversion circuit 5 through the control module. In this way, the adapter 100 can also charge the second battery pack 300 through the first battery pack 200 when the first power port 3 cannot be connected to the charger 400 and the second power port 4 cannot be connected to the photovoltaic device 500, so that the second battery pack 300 can continuously supply power to the load, thereby improving the available time of the load and further improving the user experience.

[0047] Optionally, FIG. 3 is a circuit structure schematic diagram of an adapter provided by an embodiment of the present application. As shown in FIG. 3, the first power port 3, the first connecting part 1 and the second connecting part 2 are electrically connected to the first node a of the conversion circuit 5. In this way, the power provided by the charger 400 connected to the first power port 3 can be transmitted to the first connecting part 1 and the second connecting part 2 to charge the first battery pack 200 connected to the first connecting part 1 and the second battery pack 300 connected to the second connecting part 2.

[0048] Optionally, continuing to refer to FIG. 2, the first connecting part 1 is electrically connected to the first node a of the conversion circuit 5, and the second connecting part 2 is electrically connected to the second node b of the conversion circuit 5. The adapter 100 further comprises a bidirectional switch 6. The bidirectional switch 6 comprises a first movable contact K1, a first stationary contact K21, and a second stationary contact K22. The first movable contact K1 is electrically connected to the second power port 4, the first stationary contact K21 is electrically connected to the first node a, and the second stationary contact K22 is electrically connected to the second node b.

[0049] The conversion circuit 5 can include, but is not limited to, a DC-DC converter. The conversion circuit 5 can realize bidirectional conversion of voltage or current, and is used to convert the voltage provided by the second power port 4 into a voltage suitable for the first battery pack 200 connected to the first connecting part 1 or a voltage suitable for the second battery pack 300 connected to the second connecting part 2, so as to charge the first battery pack 200 or the second battery pack 300 by the photovoltaic device 500 connected to the second power port 4.

[0050] The bidirectional switch 6 can include, but is not limited to, a mechanical bidirectional switch, and is used to control the transmission direction of the electric energy provided by the photovoltaic device 500 connected to the second power port 4. In an optional embodiment, the bidirectional switch 6 is a manual switch, and the bidirectional switch 6 is arranged on the casing 101. A user controls the conduction state of the bidirectional switch 6 by a manual button or a knob, etc. In another optional embodiment, the bidirectional switch 6 is a smart switch, and a user can control the conduction state of the bidirectional switch 6 by a corresponding client APP or a remote controller, etc. The first movable contact K1 of the bidirectional switch 6 is electrically connected to the second power port 4. In an optional embodiment, when the first movable contact K1 is electrically connected to the first stationary contact K21, the conversion circuit 5 is used to convert the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the second connecting part 2. When the first movable contact K1 is electrically connected to the second stationary contact K22, the conversion circuit 5 is used to convert the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the first connecting part 1.

[0051] Specifically, when the first moving contact K1 is controlled to be connected with the first stationary contact K21, since the first stationary contact K21 is electrically connected with the first node a and the second combining part 2 is electrically connected with the second node b of the conversion circuit 5, the electric energy provided by the photovoltaic device 500 connected with the second power port 4 can be transmitted to the first node a, and then transmitted to the second battery pack 300 connected with the second combining part 2 after the voltage is converted by the conversion circuit 5, so as to charge the second battery pack 300. When the first moving contact K1 is controlled to be electrically connected with the second stationary contact K22, since the second stationary contact K22 is electrically connected with the second node b and the first combining part 1 is electrically connected with the first node a of the conversion circuit 5, the electric energy provided by the photovoltaic device 500 connected with the second power port 4 can be transmitted to the second node b, and then transmitted to the first battery pack 200 connected with the first combining part 1 after the voltage is converted by the conversion circuit 5, so as to charge the first battery pack 200.

[0052] In an optional embodiment, the first stationary contact K21 and the first node a further comprise a first switch tube M1. When the first moving contact K1 is controlled to be electrically connected with the first stationary contact K21, the first switch tube M1 is controlled to be turned on, so as to realize the conduction between the second power port 4 and the first node a. When the first moving contact K1 is not controlled to be electrically connected with the first stationary contact K21, the first switch tube M1 is controlled to be turned off, so as to prevent the second power port 4 and the first node a from being unable to be disconnected in time when the contacts of the bidirectional switch 6 are stuck, thereby protecting the conversion circuit 5. Correspondingly, in other embodiments, the second stationary contact K22 and the second node b further comprise a second switch tube M2. When the first moving contact K1 is controlled to be electrically connected with the second stationary contact K22, the second switch tube M2 is controlled to be turned on, so as to realize the conduction between the second power port 4 and the second node b. When the first moving contact K1 is not controlled to be electrically connected with the second stationary contact K22, the second switch tube M2 is controlled to be turned off, so as to prevent the second power port 4 and the second node b from being unable to be disconnected in time when the contacts of the bidirectional switch 6 are stuck, thereby protecting the conversion circuit 5 and improving the service life of the adapter.

[0053] Optionally, the conversion circuit 5 comprises a first bidirectional DCDC converter 51 and a second bidirectional DCDC converter 52. The first bidirectional DCDC converter 51 and the second bidirectional DCDC converter 52 are connected in parallel between the first node a and the second node b. When the first movable contact K1 is electrically connected with the first stationary contact K21, the first bidirectional DCDC converter 51 converts the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the second combining portion 2. When the first movable contact K1 is electrically connected with the second stationary contact K22, the second bidirectional DCDC converter 52 converts the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the first combining portion 1. In this way, by using the first bidirectional DCDC converter 51 to convert the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the second combining portion 2, and using the second bidirectional DCDC converter 52 to convert the voltage provided by the output end of the photovoltaic device 500 into a voltage suitable for the first combining portion 1, the conversion circuit 5 uses different DCDC converters when converting different voltages, thereby making the circuit control simpler, improving the reliability of the conversion circuit 5, and further improving the reliability of the adapter.

[0054] Optionally, the first combining portion 1 comprises a first connection terminal 11, and the adapter 100 further comprises a first high-side driver 7. The first high-side driver 7 comprises a first input end, a first output end, and a first control end. The first input end is electrically connected with the first node a of the conversion circuit 5; the first output end is electrically connected with the first connection terminal 11; and the first control end is used to receive a first control signal and control the working state of the first high-side driver 7 according to the first control signal.

[0055] The first connection terminal 11 is used to connect the first battery pack 200. The first high-side driver 7 is used to control the connection state between the first connection terminal 11 and the first node a. The working state of the first high-side driver 7 comprises a conduction state and a disconnection state. The first control signal can be a charging control signal generated by the control module to control the charging of the first battery pack 200. In an exemplary embodiment, when the control end of the first high-side driver 7 receives a valid signal of the first control signal, the working state of the first high-side driver 7 is in the conduction state, at this time, the first connection terminal 11 is electrically connected with the first node a, and the electrical energy at the first node a is transmitted to the first connection terminal 11 to charge the first battery pack 200. When the control end of the first high-side driver 7 receives an invalid signal of the first control signal, the working state of the first high-side driver 7 is in the disconnection state, at this time, the first connection terminal 11 is disconnected with the first node a, so that the first connection terminal 11 and the first node a cannot transmit electrical energy, and the first battery pack 200 will not be charged. The valid signal of the first control signal can be a high-level signal, and the invalid signal can be a low-level signal.

[0056] In an optional embodiment, continuing to refer to FIG. 2, the adapter 100 further comprises a first current detection module 8; the first current detection module 8 is electrically connected with the first connection terminal 11. The first current detection module 8 is configured to detect a first current value at the first connection terminal 11, so as to control a first control signal provided to the first high-side driver 7.

[0057] In an optional embodiment, the first current detection module 8 is configured to detect a current signal of the first battery pack 200 connected with the first connection terminal 11. In an optional embodiment, the first current detection module 8 comprises a current detection resistor.

[0058] Specifically, the first current detection module 8 detects the first current value at the first connection terminal 11, and feeds back the first current value to the control module, so that the control module generates the first control signal according to the first current value, thereby controlling the working state of the first high-side driver 7. It should be noted that the first control signal provided to the first high-side driver 7 according to the first current value can be understood as the first control signal provided to the first high-side driver 7 according to only the first current value, or the first control signal provided to the first high-side driver 7 according to the first current value and other data.

[0059] Optionally, the first connecting portion 1 comprises the first connection terminal 11. The adapter 100 further comprises a fourth high-side driver 9; the fourth high-side driver 9 comprises a fourth input end, a fourth output end and a fourth control end. The fourth input end is electrically connected with the first connection terminal 11, the fourth output end is electrically connected with the first node a of the conversion circuit 5, and the fourth control end is configured to receive a fourth control signal and control the working state of the fourth high-side driver 9 according to the fourth control signal.

[0060] In an optional embodiment, the fourth high-side driver 9 is configured to control the connection state of the first connection terminal 11 and the first node a. The working state of the fourth high-side driver 9 can comprise a conduction state and a disconnection state. The fourth control signal can be a discharge control signal of the first battery pack 200 generated by the control module according to the state of the first battery pack 200 and the discharge requirement of the first battery pack 200. In an exemplary embodiment, when the fourth high-side driver 9 receives a valid signal of the fourth control signal, the working state of the fourth high-side driver 9 is the conduction state, and the electric energy at the first connection terminal 11 can be transmitted to the first node a. When the fourth high-side driver 9 receives an invalid signal of the fourth control signal, the working state of the fourth high-side driver 9 is the disconnection state, and the electric energy at the first connection terminal 11 cannot be transmitted to the first node a. In this way, the adapter 100 can control the charging and discharging state of the first battery pack 200 connected with the first connection terminal 11 through the fourth high-side driver 9, thereby improving the safety performance of the adapter 100.

[0061] In an optional embodiment, the control module further generates a fourth control signal according to the first current value detected by the first current detection module 8, so as to control the working state of the fourth high-side driver 9. It should be noted that the fourth control signal provided to the fourth high-side driver 9 according to the first current value can be understood as that the fourth control signal provided to the fourth high-side driver 9 is controlled only according to the first current value, or the first control signal provided to the fourth high-side driver 9 is controlled according to the fourth current value and other data.

[0062] Optionally, the second connecting part 2 includes a second connecting terminal 21, and the adapter 100 further includes a second high-side driver 10. The second high-side driver 10 includes a second input end, a second output end and a second control end. The second input end is electrically connected with the first node a, the second output end is electrically connected with the second connecting terminal 21, and the second control end is configured to receive a second control signal and control the working state of the second high-side driver 10 according to the second control signal.

[0063] The second connecting terminal 21 is configured to connect the second battery pack 300, and the second high-side driver 10 is configured to control the connection state between the second connecting terminal 21 and the first node a. The working state of the second high-side driver 10 includes a conducting state and a disconnecting state, and the second control signal can be a charging control signal generated by the control module to control the charging of the second battery pack 300. In an exemplary embodiment, when the control end of the second high-side driver 10 receives a valid signal of the second control signal, the working state of the second high-side driver 10 is the conducting state, at this time, the second connecting terminal 21 is electrically connected with the first node a, and the electric energy at the second connecting terminal 21 can be transmitted to the first node a to charge the second battery pack 300. When the control end of the second high-side driver 10 receives an invalid signal of the second control signal, the working state of the second high-side driver 10 is the disconnecting state, at this time, the second connecting terminal 21 is disconnected with the first node a, so that the electric energy cannot be transmitted between the second connecting terminal 21 and the first node a. The valid signal of the second control signal can be a high-level signal, and the invalid signal of the second control signal can be a low-level signal.

[0064] In an optional embodiment, the adapter 100 further includes a second current detection module 12. The second current detection module 12 is electrically connected with the second connecting terminal 21. The second current detection module 12 is configured to detect a second current value at the second connecting terminal 21, so as to control the second control signal provided to the second high-side driver 10.

[0065] The second current detection module 12 is configured to detect the current signal of the second battery pack 300 connected with the second connecting terminal 21. In an optional embodiment, the second current detection module 12 includes a current detection resistor.

[0066] Specifically, the second current detection module 12 detects the second current value at the second connection terminal 21 and feeds back the second current value to the control module, so that the control module generates a second control signal according to the second current value, thereby controlling the working state of the second high-side driver 10. It should be noted that the second control signal provided to the second high-side driver 10 according to the second current value can be understood as only controlling the second control signal provided to the second high-side driver 10 according to the second current value, or controlling the second control signal provided to the second high-side driver 10 according to the second current value and other data.

[0067] In this embodiment, by making the first high-side driver 7 control the connection state between the first connection terminal 11 and the first node a, and the second high-side driver 10 control the connection state between the second connection terminal 21 and the second node b, the adapter 100 can control the charging and discharging state of the first battery pack 200 connected by the first connection terminal 11 through the first high-side driver 7, and control the charging and discharging state of the second battery pack 300 connected by the second connection terminal 21 through the second high-side driver 10, thereby improving the safety performance of the adapter 100.

[0068] Optionally, the adapter 100 further comprises a third high-side driver 13. The third high-side driver 13 comprises a third input end, a third output end and a third control end. The third input end is electrically connected with the first node a of the conversion circuit 5, the third output end is electrically connected with the second joint part 2, and the third control end is used for receiving a third control signal and controlling the working state of the third high-side driver 13 according to the third control signal.

[0069] The third output end can be electrically connected with the second joint part 2 through the second node b. The third high-side driver 13 is used for controlling the connection state between the first node a and the second joint part 2. The working state of the third high-side driver 13 can include a conduction state and a disconnection state, and the third control signal can be a signal generated by the control module to control the conduction of the third high-side driver 13.

[0070] Optionally, the adapter 100 further comprises an instruction input module. The instruction input module is used for acquiring an input control instruction to control the working mode of the adapter 100 according to the input control instruction.

[0071] The instruction input module can include, but is not limited to, input buttons on the casing 101, a client APP, and / or a remote controller. The input control instruction can include, but is not limited to, a control instruction input by a user through the input buttons on the casing 101, the client APP, and / or the remote controller. The control instruction can include an instruction for controlling the adapter 100 to work in the first working mode, the second working mode, or the third working mode. In an optional embodiment, the control instruction can also include an instruction for controlling the charging and discharging speed.

[0072] Based on the same concept, the present application also provides an adapter for connecting a battery pack, including a casing 101, at least one first connecting part 1, and at least one second connecting part 2; the at least one first connecting part 1 is used for connecting a first battery pack 200; the at least one second connecting part 2 is used for connecting a second battery pack 300; the adapter 100 is configured to have at least a first working mode and a second working mode; in the first working mode, the adapter 100 is configured to be able to use electrical energy from external alternating current to charge the first battery pack 200 or the second battery pack 300; in the second working mode, the adapter 100 is configured to be able to use electrical energy from a photovoltaic device 500 to charge the first battery pack 200 or the second battery pack 300; wherein the second battery pack 300 electrically connected to the adapter 100 is configured to be also able to receive electrical energy output by the first battery pack 200 electrically connected to the adapter 100.

[0073] The basic principles, main features, and advantages of the present application are shown and described above. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. An adapter, comprising: chassis; at least one first coupling portion configured to connect to a first battery pack; at least one second coupling portion configured to connect to a second battery pack; The first power port is at least configured to connect to a charger to receive direct current power output by the charger; a second power port configured to connect to an output terminal of a photovoltaic device; a conversion circuit, wherein the first coupling portion is electrically connected to the first power port and the second power port respectively through the conversion circuit, and the second coupling portion is electrically connected to the first power port and the second power port respectively through the conversion circuit; The adapter is configured to include at least a first operating mode and a second operating mode; In the first operating mode, the power provided by the charger charges at least one of the first battery pack and the second battery pack; In the second operating mode, the electrical energy provided by the photovoltaic device charges at least one of the first battery pack and the second battery pack.

2. The adapter according to claim 1, wherein The adapter is further configured to include a third operating mode; in the third operating mode, the first battery pack charges the second battery pack.

3. The adapter according to claim 1, wherein The first power port, the first combining portion, and the second combining portion are all electrically connected to a first node of the conversion circuit.

4. The adapter according to claim 1, wherein The first combining portion is electrically connected to a first node of the conversion circuit; and the second combining portion is electrically connected to a second node of the conversion circuit.

5. The adapter according to claim 4 further includes a bidirectional switch, the bidirectional switch including a first moving contact, a first static contact and a second static contact; the first moving contact is electrically connected to the second power port; the first static contact is electrically connected to the first node of the conversion circuit; the second static contact is electrically connected to the second node of the conversion circuit.

6. The adapter according to claim 5, wherein: When the first moving contact is electrically connected to the first static contact, the conversion circuit is configured to convert the voltage provided by the output end of the photovoltaic device into a voltage compatible with the second coupling part; when the first moving contact is electrically connected to the second static contact, the conversion circuit is configured to convert the voltage provided by the output end of the photovoltaic device into a voltage compatible with the first coupling part.

7. The adapter according to claim 6, wherein: The conversion circuit includes a first bidirectional DCDC converter and a second bidirectional DCDC converter; the first bidirectional DCDC converter and the second bidirectional DCDC converter are connected in parallel between the first node and the second node.

8. The adapter according to claim 7, wherein: When the first moving contact is electrically connected to the first static contact, the first bidirectional DCDC converter converts the voltage provided by the output end of the photovoltaic device into a voltage adapted to the second combining part; when the first moving contact is electrically connected to the second static contact, the second bidirectional DCDC converter converts the voltage provided by the output end of the photovoltaic device into a voltage adapted to the first combining part.

9. The adapter according to claim 1, wherein: The first combining portion includes a first connecting terminal; the adapter also includes a first high-side driver; the first high-side driver includes a first input terminal, a first output terminal and a first control terminal; the first input terminal is electrically connected to the first node of the conversion circuit; the first output terminal is electrically connected to the first connecting terminal; the first control terminal is configured to receive a first control signal and control the working state of the first high-side driver according to the first control signal.

10. The adapter according to claim 9, wherein: The second combining portion includes a second connecting terminal and a second high-side driver; the second high-side driver includes a second input terminal, a second output terminal and a second control terminal; the second input terminal is electrically connected to the first node; the second output terminal is electrically connected to the second connecting terminal; The second control terminal is configured to receive a second control signal and control a working state of the second high-side driver according to the second control signal.

11. The adapter according to claim 1 , further comprising: third high-side driver; The third high-side driver includes a third input terminal, a third output terminal and a third control terminal; the third input terminal is electrically connected to the first node of the conversion circuit; The third output terminal is electrically connected to the second combining portion; the third control terminal is configured to receive a third control signal and control a working state of the third high-side driver according to the third control signal.

12. The adapter according to claim 2, wherein: The first combining portion includes a first connecting terminal; The adapter further includes: a fourth high-side driver; The fourth high-side driver includes a fourth input terminal, a fourth output terminal and a fourth control terminal; the fourth input terminal is electrically connected to the first connection terminal; the fourth output terminal is electrically connected to the first node of the conversion circuit; the fourth control terminal is configured to receive a fourth control signal and control the working state of the fourth high-side driver according to the fourth control signal.

13. The adapter according to claim 10, further comprising: a first current detection module; The first current detection module is electrically connected to the first connection terminal; The first current detection module is configured to detect a first current value at the first connection terminal to control the first control signal provided to the first high-side driver.

14. The adapter according to claim 10, further comprising: a second current detection module; The second current detection module is electrically connected to the second connection terminal; The second current detection module is configured to detect a second current value at the second connection terminal to control the second control signal provided to the second high-side driver.

15. The adapter of claim 1, further comprising: Command input module; The instruction input module is configured to obtain an input control instruction to control the working mode of the adapter according to the input control instruction.

16. An adapter for connecting a battery pack, comprising: chassis; at least one first coupling portion configured to connect to a first battery pack; at least one second coupling portion configured to connect to a second battery pack; The adapter is configured to have at least a first operating mode and a second operating mode; In the first operating mode, the adapter is configured to charge the first battery pack or the second battery pack using power from an external AC power source; In the second operating mode, the adapter is configured to charge the first battery pack or the second battery pack using electrical energy from the photovoltaic device; The second battery pack electrically connected to the adapter is configured to also receive electrical energy output by the first battery pack electrically connected to the adapter.

17. The adapter according to claim 16, wherein: The energy of the first battery pack is greater than or equal to 1 kW·h and less than or equal to 30 kW·h; the energy of the second battery pack is greater than or equal to 0.1 kW·h and less than or equal to 2 kW·h.

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