CN220368484U

CN220368484U - Charging system

Info

Publication number: CN220368484U
Application number: CN202321234158.6U
Authority: CN
Inventors: 李峥峥; 耿正; 鲁志健; 伯曼科里; 肖怡文; 童佳俊; 黄河; 张月祥; 曹亚飞
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2022-08-05
Filing date: 2023-05-19
Publication date: 2024-01-19
Anticipated expiration: 2033-05-19
Also published as: CN220368486U; CN117526488A; CN220368485U; CN117526487A; CN117526486A; CN117526484A; CN117526490A; CN220368483U; CN117526485A; CN117526489A

Abstract

The application discloses charging system, including at least one first charging device and second charging device, first charging device includes: a housing; the plurality of containing parts are arranged on the shell and used for installing the energy storage device and can charge the energy storage device installed on the containing parts; and a connection port for connecting the second charging device or the first charging device; the second charging device includes: a housing; the plurality of containing parts are arranged on the shell and used for installing the energy storage device and can charge the energy storage device installed on the containing parts; the connection port is used for connecting the first charging equipment or the second charging equipment; the plurality of receiving parts of the second charging device include at least one first receiving part and at least one second receiving part having different shapes or sizes. By adopting the scheme, the electric energy receiving equipment suitable for conveniently charging the plurality of energy storage devices can be provided, has stronger current output capacity and can improve the charging speed of the battery pack in the charging system.

Description

Charging system

Technical Field

The present application relates to a charging system.

Background

The related art discloses a charging system suitable for a power tool. The charging system includes a plurality of chargers. The charger includes a plurality of battery interfaces, each of which is connected to one of the battery packs, so that the plurality of battery packs can be charged. At present, a plurality of chargers in a charging system have the same charging interface to charge a battery pack of a type, so that the requirement of a user for charging a plurality of battery packs of a type cannot be met.

Disclosure of Invention

The utility model provides an electric energy receiving equipment suitable for a plurality of energy storage devices carry out convenient charging, this electric energy receiving equipment has stronger current output ability, can improve the charge rate of battery package in the charging system.

In order to achieve the above object, the present application adopts the following technical scheme: a charging system comprising a plurality of devices in cascade, the plurality of devices in cascade comprising at least one first charging device and at least one second charging device, the first charging device comprising: a housing; the plurality of accommodating parts are arranged on the shell and used for installing the energy storage device, and the first charging equipment can charge the energy storage device installed on the accommodating parts; and a connection port for connecting the second charging device or the first charging device; the second charging device includes: a housing; the plurality of accommodating parts are arranged on the shell and used for installing the energy storage device, and the second charging equipment can charge the energy storage device installed on the accommodating parts; and a connection port for connecting the first charging device or the second charging device; the plurality of receptacles of the second charging device include at least one first receptacle and at least one second receptacle, the first receptacle and the second receptacle being different in shape or size.

In some embodiments, the first receptacle is configured to mount a first energy storage device and the second receptacle is configured to mount a second energy storage device, the first energy storage device having a capacity greater than a capacity of the second energy storage device.

In some embodiments, the first energy storage device comprises a plurality of first energy storage cells and the second energy storage device comprises a plurality of second energy storage cells, the first and second energy storage cells being chemically distinct.

In some embodiments, the first energy storage unit is a lithium iron phosphate cell.

In some embodiments, the second energy storage unit is a ternary lithium cell.

In some embodiments, the first charging device and the second charging device are the same.

In some embodiments, the first charging device and the second charging device are different.

In some embodiments, the second charging device is a riding lawn mower with charging functionality.

In some embodiments, the first charging device and the second charging device can be connected by a cable.

In some embodiments, the first charging device and the second charging device have the same shape of the connection port.

In some embodiments, the output power of the first charging device or the second charging device is greater than or equal to 500W and less than or equal to 2000W.

In some embodiments, the first energy storage device is capable of charging the second energy storage device.

A charging system comprising a plurality of devices in cascade, the plurality of devices in cascade comprising at least one first charging device and at least one second charging device, the first charging device comprising: a housing; at least one first accommodating part provided to the casing for mounting the first energy storage device, the first charging apparatus being capable of charging the first energy storage device mounted to the first accommodating part; and a connection port for connecting the second charging device or the first charging device; the second charging device includes: a housing; at least one second accommodating part provided to the casing for mounting a second energy storage device, the second charging apparatus being capable of charging the second energy storage device mounted to the second accommodating part; and a connection port for connecting the first charging device or the second charging device; the first receiving portion and the second receiving portion are different in shape or size.

In some embodiments, the second energy storage unit is a ternary lithium cell.

In order to achieve the above object, the present application adopts the following technical scheme: a charging system, comprising: a power supply; a power conversion device configured to be electrically connected to a power source and to convert a characteristic of a current acquired from the power source; at least one power receiving device electrically connected with the power conversion device, the power receiving device at least comprising a device provided with a battery pack; the battery pack at least comprises an electric core unit; at least one of the electric energy receiving devices can realize that the charging multiplying power of the battery cell unit is more than or equal to 8C.

In some embodiments, at least one of the power receiving devices is capable of achieving a charge rate of the cell unit of 9C or more.

In some embodiments, the output power of the power receiving device is greater than or equal to 500W and less than or equal to 2000W.

In some embodiments, the total energy of the battery pack is greater than or equal to 0.5 kW.h and less than or equal to 6 kW.h.

In some embodiments, the charging system may include a plurality of sequentially connected devices for mounting the battery packs.

In some embodiments, the battery pack mounted device includes at least one of an ac-dc charger, a bi-directional power supply, a dc-dc charger, and a saddle-type vehicle.

In some embodiments, the power receiving device comprises a device capable of mounting at least one battery pack; at least one of the battery packs may be detachably mounted to the power receiving apparatus.

In some embodiments, the charging system further comprises a control circuit for controlling at least on-off of the charging current of the battery pack.

In some embodiments, the battery cell comprises a lithium iron phosphate battery cell or a ternary lithium battery cell.

In some embodiments, the power source comprises at least one of a solar panel, a trolley charging pole, a trolley charging port, and a utility outlet.

Drawings

Fig. 1 is a perspective view of a charging system as a specific embodiment;

FIG. 2 is a perspective view of an adapter and an energy storage device of the charging system of FIG. 1;

FIG. 3 is a perspective view of an adapter and an energy storage device of the charging system of FIG. 1 from another perspective;

FIG. 4 is a perspective view of an adapter of the charging system of FIG. 1;

FIG. 5 is a perspective view of the adapter of FIG. 4 after installation of the energy storage device;

fig. 6 is a perspective view of another charging system as a specific embodiment;

FIG. 7 is a schematic circuit diagram of the charging system of FIG. 1;

FIG. 8 is another embodiment of an adapter and energy storage device in a charging system;

FIG. 9a is a perspective view of the adapter of FIG. 8;

FIG. 9b is a perspective view of another view of the adapter of FIG. 8;

fig. 10 is a schematic diagram of another charging system as a specific embodiment;

fig. 11 is a perspective view of yet another charging system as a specific embodiment;

FIG. 12 is a schematic circuit diagram of the charging system of FIG. 11;

FIG. 13 is a circuit topology of a DC-DC conversion circuit of the charging system of FIG. 12;

fig. 14a is a circuit diagram of the dc-dc conversion circuit of fig. 13 in mode a;

fig. 14B is a circuit diagram of the dc-dc conversion circuit of fig. 13 in mode B;

fig. 14C is a circuit diagram of the dc-dc conversion circuit of fig. 13 in mode C;

fig. 14D is a circuit diagram of the dc-dc conversion circuit of fig. 13 in mode D;

FIG. 15 is a control timing diagram and waveforms of the inductor current and the output current of the DC-DC conversion circuit of FIG. 13;

FIG. 16 is a schematic diagram of a bi-directional charging system as an example embodiment;

fig. 17 is a perspective view of the power conversion apparatus of fig. 16 as a specific embodiment;

fig. 18 is a charge-discharge schematic diagram of an outdoor traveling device as a specific embodiment in the electric energy conversion device in fig. 17;

FIG. 19a is a schematic diagram of the electrical connection of the bi-directional inverter module installed inside an outdoor unit;

FIG. 19b is a schematic diagram of the electrical connection of the bi-directional inverter module installed outside of the outdoor unit;

FIG. 20 is a schematic diagram of a power supply system when the power conversion device is an AC-DC charger;

FIG. 21 is a schematic diagram of a power supply system when the power conversion device is a DC-DC charger;

FIG. 22 is a control schematic diagram of a power supply system supplying power to a home grid;

FIG. 23 is a schematic diagram of a remote device communicatively connected to a power supply system and a home grid;

FIG. 24 is a schematic view of the adapter mounted to an electric drive apparatus;

fig. 25 is a perspective view of the charging device;

fig. 26 is a perspective view of a fixing device, a locking device of the charging apparatus in fig. 25;

FIG. 27 is a perspective view of the fixture of FIG. 26;

fig. 28 is a perspective view of the charging device of fig. 25 from another perspective;

fig. 29 is a connection relationship diagram of a plurality of charging devices and cables;

fig. 30 is a perspective view of a charging device as yet another embodiment;

FIG. 31 is a schematic diagram of the installation relationship of the charging apparatus and the energy storage device of FIG. 30;

FIG. 32 is a schematic diagram of the position of a circuit board of the charging device of FIG. 30;

fig. 33 is a perspective view of the charging device of fig. 30 from another perspective;

Fig. 34 is a schematic view of a plurality of charging devices stacked in a first manner;

fig. 35 is a schematic view of a plurality of charging devices stacked in a second manner;

FIG. 36 is a schematic view of a charging device having a drawbar and wheels;

FIG. 37 is a schematic view of a charging device with tie rods and wheels after multiple stacks;

FIG. 38 is a schematic view of a plurality of charging devices positioned in a movable cabinet;

fig. 39 is a schematic diagram of stacking a plurality of charging devices according to a third mode.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present application more clear, the technical solutions of the embodiments of the present application will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Those of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "generally," "substantially," etc.) used in connection with a quantity or condition are intended to encompass the stated value and have the meaning dictated by the context (e.g., the term includes at least the degree of error associated with measurement of the particular value, tolerances (e.g., manufacturing, assembly, use) associated with the particular value, etc.). Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to a percentage (e.g., 1%,5%,10% or more) of the indicated value plus or minus. Of course, numerical values that do not take relative terms should also be construed as having particular values within tolerances.

The present application is described in detail below with reference to the attached drawings and specific embodiments.

As shown in fig. 1 and 2, the charging system 100 includes at least an adapter 10, an energy storage device 20, and a charger 30. Wherein the energy storage device 20 is detachably connected to the power tool or the adapter 10 to provide stored electrical energy to the power tool or to receive and store electrical energy output in the charger 30. In some embodiments, the charging system 100 is used to provide energy to a power tool.

Specifically, the charger 30 includes a housing 34, an ac input power cord 31, an ac-dc conversion module (not shown) provided in the housing 34, and an output port 33. The ac input power line 31 is used for supplying ac power to the utility power or other forms of ac power. The alternating current-direct current conversion module is used for converting the accessed commercial power or other forms of alternating current into direct current. In some embodiments, the AC-DC conversion module includes an AC-DC conversion circuit, such as an inverter circuit. Wherein, the AC-DC conversion circuit can be a bridge rectifier circuit. The output port 33 is electrically connected to the adapter 10 to provide a charging voltage for the energy storage device 20 mounted on the adapter 10. In the present embodiment, the output power of the charger 30 is 500W or more and 2000W or less.

In some embodiments, the charger 30 can also be used to charge the power tool. Wherein, the electric tool is a riding type vehicle. Specifically, riding power tools include, but are not limited to, riding lawn mowers, riding snowploughs, all-terrain vehicles, electric motorcycles, and the like.

The adapter 10 includes a housing 11, at least one joint 12, and a handle 1111 for a user to grasp. The combination portion 12 is disposed on the housing 11, and is used for installing a plurality of energy storage devices 20. The adapter 10 is capable of charging an energy storage device 20 mounted on the junction 12. Specifically, the energy storage device 20 includes a battery pack. In some embodiments, the plurality of energy storage devices 20 may be the same type of battery pack, or may include two or more different types of battery packs. For example having different capacities, different nominal voltages, etc. The output power of the adapter 10 is 500W or more and 2000W or less.

The up, down, left, right, front, and rear directions as shown in fig. 3 and 5 are defined. The left-right direction is defined as the extending direction of the housing 11 of the adapter 10. The adapter 10 has a substantially L-shape in projection on a plane perpendicular to the left-right direction. The energy storage device 20 can be detachably coupled to the coupling portion 12 of the adapter 10 in the up-down direction or the front-rear direction. When charging of one of the energy storage devices 20 is completed, the user may remove the fully charged energy storage device 20 and use it immediately without waiting for the charging of the other energy storage devices 20 to be completed.

The handle 1111 is provided at an upper portion of the housing 11 of the adapter 10 and extends in the left-right direction. In some embodiments, the length L1 of the handle 1111 in the left-right direction is 70mm or more. In some embodiments, the length L1 of the handle 1111 in the left-right direction is 80mm or more. In some embodiments, referring to fig. 4, when a user holds handle 1111 to lift adapter 10, the projection of center of gravity G1 of adapter 10 on the horizontal plane falls within the projection of adapter 10 on the horizontal plane. The above-mentioned horizontal plane is understood as a ground or ground plane. Specifically, the center of gravity G1 of the adapter 10 is located below the handle 1111 in the up-down direction. Referring to fig. 5, when at least one coupling portion 12 of the adapter 10 is mounted with the energy storage device 20, the center of gravity G2 of the adapter is located on the front side of the handle 1111 in the front-rear direction.

Thus, regardless of whether the energy storage device 20 is mounted on the adapter 10, when the user lifts the handle 1111 on the adapter 10, the center of gravity of the adapter or the adapter and the energy storage device as a whole can be close to the handle 1111, so that the user can save more effort and experience better when lifting the adapter or the energy storage device.

The adapter 10 further includes a first port and a second port. The first port is used for being electrically and communicatively connected with the first charging device, and the second port is used for being electrically and communicatively connected with the second charging device. In some embodiments, the first charging device is a charger and the second charging device is an adapter. In some embodiments, the first charging device is a first adapter and the second charging device is a second adapter different from the first adapter. It will be appreciated that a user may use one or more adapters 10 to install and charge multiple energy storage devices 20 simultaneously. After charging, the user optionally removes one or more of the energy storage devices 20 from the adapter 10. Thus, two or more energy storage devices can be easily and conveniently charged.

In some embodiments, the charging system includes a plurality of devices in cascade. The plurality of devices in cascade includes at least one first charging device and at least one second charging device. Wherein the first charging device includes: a housing; the plurality of holding parts are arranged on the machine shell and are used for installing the energy storage device. The first charging apparatus is capable of charging an energy storage device mounted to the housing. The first charging device further comprises a connection port for connecting to the second charging device or the first charging device. The second charging device includes: a housing; the plurality of holding parts are arranged on the machine shell and are used for installing the energy storage device. The second charging apparatus is capable of charging the energy storage device mounted to the housing. The second charging device further comprises a connection port for connecting the first charging device or the second charging device. In some embodiments, the plurality of receptacles of the second charging device includes at least one first receptacle and at least one second receptacle. Specifically, the first and second receiving parts are different in shape or size. The connection port may be a first port or a second port. In some embodiments, the receptacle of the first charging device is the same size as the first receptacle or the second receptacle of the second charging device. The cascade connection is understood to mean that a plurality of charging devices are connected end to end in a structurally sequential manner.

In some embodiments, the charging system comprises a plurality of devices in cascade, the plurality of devices in cascade comprising at least one first charging device and at least one second charging device. Wherein the first charging device comprises a housing; at least one first accommodation portion is arranged on the casing and used for installing the first energy storage device. The first charging apparatus is capable of charging a first energy storage device mounted to the first accommodation portion. The connection port is used for connecting the second charging device or the first charging device. The second charging device includes: a housing; at least one second accommodation portion is arranged on the shell and used for installing a second energy storage device. The second charging apparatus is capable of charging a second energy storage device mounted to the second accommodation portion. And the connection port is used for connecting the first charging equipment or the second charging equipment. The first receiving portion and the second receiving portion are different in shape or size. The cascade connection is understood to mean that a plurality of charging devices are connected end to end in a structurally sequential manner.

In some embodiments, the first receptacle is configured to mount a first energy storage device and the second receptacle is configured to mount a second energy storage device. Wherein the capacity of the first energy storage device is greater than the capacity of the second energy storage device. The first energy storage device comprises a plurality of first energy storage units, and the second energy storage device comprises a plurality of second energy storage units. In some embodiments, the first energy storage unit and the second energy storage unit are chemically distinct. In some embodiments, the first energy storage unit is a lithium iron phosphate cell. The second energy storage unit is a ternary lithium cell. In some embodiments, the first charging device and the second charging device are the same. In some embodiments, the first charging device and the second charging device are different. Alternatively, the first charging device or the second charging device may be one of a power adapter, a dc-dc charger. Alternatively, the second charging device may also be a riding mower with a charging function.

In some embodiments, the first port and the second port may be interchanged. It will be appreciated that the first port may be used to connect to both the first charging device and the second charging device. Likewise, the second port may be used to connect to both the first charging device and the second device.

Fig. 6 shows a charging system 100 as a specific embodiment. The adapter 10 includes at least one first adapter 10a and at least one second adapter 10b (for example, two second adapters 10b in the present embodiment). The first adapter 10a and the one or more second adapters 10b are connected in series. The charging system 100 may charge a greater number of energy storage devices 20 by connecting a greater number of first adapters 10a and second adapters 10b in series. In some embodiments, the second adapter 10b is identical to the first adapter 10 a. In some embodiments, the second adapter 10b is different from the first adapter.

Specifically, the first adapter 10a has a first port 111 and a second port 112. The second adapter 10b has a first port 111 and a second port 112. Wherein the first port 111 of the first adapter 10a is for connecting to the output port 33 of the charger 30. In some embodiments, the output port 33 of the charger 30 may be movable. The second port 112 of the first adapter 10a is for connecting to the first port 111 of the second adapter 10 b. The second port 112 of the second adapter 10b is used to connect the first port of the following adapter in series. In the above connection manner, the charger 30 is electrically connected to the first adapter 10a and the second adapter 10b in order to charge the energy storage device 20 mounted on the first adapter 10a or the second adapter 10 b.

In this embodiment, the first port 111 of the first adapter 10a is an electrical energy input port, and the second port 112 of the first adapter 10a is an electrical energy output port. The first port 111 of the second adapter 10b is an electrical power input port, and the second port 112 of the second adapter 10b is an electrical power input port. Wherein the first adapter 10a and the second adapter 10b are electrically connected through an electric power output port and an electric power input port. The current output from the charger 30 flows through the first adapter 10a and the second adapter 10b to cause the first adapter 10a and the second adapter 10b to perform a charging function. In some embodiments, the charger 30 can also be used to charge the power tool. In some embodiments, the power tool includes a saddle-type vehicle. Specifically, riding vehicles include riding lawnmowers, standing lawnmowers, all-terrain vehicles, and electric motorcycles. Of course, the power tool may also be a snowplow or a bench-type tool. When the second port 112 (power output port) of the first adapter 10a is electrically connected with the first port (power input port) of the second adapter 10b, the relative positions of the first adapter 10a and the second adapter 10b are adjustable. Specifically, the first port 111 and the second port 112 of the first adapter 10a are provided outside the housing 11 of the first adapter 10 a. The first port 111 and the second port 112 of the second adapter 10b are provided outside the housing 11 of the second adapter 10 b. In some embodiments, the second port 112 of the first adapter 10a extends out of the housing 11 of the first adapter 10a by a wire, and the second port 112 of the first adapter 10a is movable relative to the housing 11 of the first adapter 10 a. The first port 111 and the second port 112 of the second adapter 10b also each extend outside the housing 11 of the second adapter 10b by wires, and the first port 111 and the second port 112 of the second adapter 10b are movable relative to the housing 11 of the second adapter 10 b. The above-mentioned wires are understood to be cables. The above describes the manner in which the first adapter 10a and the second adapter 10b are electrically connected. It should be noted that, the plurality of second adapters 10b or the plurality of second adapters 10a are also connected in a similar manner to achieve power transmission.

In this way, the first adapter 10a and the second adapter 10b are electrically connected and signal-connected by the cable, and the flexibility of the first adapter and the second adapter in mounting can be improved. On the other hand, the adapter and the energy storage device can radiate heat in the charging process, so that the service lives and the charging performance of the adapter and the energy storage device are prolonged.

In some embodiments, the adapter 10 further comprises a securing assembly. The securing assembly is used to fixedly mount the adapter 10 to another object. In some embodiments, the adapter 10 can be secured to a wall by a securing assembly. In particular, the fixing assembly in this embodiment may be a fixing structure, such as a snap structure, that can be removed without tools. Of course, fastening structures requiring tool removal, such as screws and bolts, may be used. Thus, by providing a securing assembly to secure the adapter 10 to a wall or work surface, it is convenient for a user to store and manage the adapter when it is in use or idle and to save space.

In some embodiments, the adapter 10 further includes a support assembly for enabling stacking between multiple adapters. Specifically, the support assembly is used to stack the first adapter 10a and the second adapter 10b or between the plurality of second adapters 10 b. Like this, pile up a plurality of adapters through setting up supporting component, when the user uses more adapters to charge energy memory, perhaps when the adapter is idle, can practice thrift the space and be convenient for accomodate the management.

Next, representative circuits of various functions of the charging system 100 will be described below.

As shown in fig. 7, in the present embodiment, the energy storage device 20 is provided as a battery pack. The battery pack has a plurality of battery cells 21, at least one battery controller 22, at least one temperature sensor, and at least one battery storage 24. The battery cell unit 21 in this embodiment is a lithium ion battery. The plurality of battery cells 21 are connected to the battery positive terminal 20a and the battery negative terminal 20b. The battery controller 22 is connected to the battery cells 21, and can detect electrical parameters of a plurality of the battery cells 21. Such as voltage, current, etc., of the cell unit. Further, the battery controller 22 may estimate the charge level and the internal resistance of the battery cell 21 based on the detected voltage of the battery cell 21. The temperature sensor is disposed near the plurality of battery cells 21, and detects the temperatures of the plurality of battery cells 21. The temperature sensor is connected to the battery controller 22, and the battery controller 22 acquires the temperature of the battery cell 21 through the temperature sensor. The battery controller 22 is connected to the battery communication terminal 20c.

The battery memory 24 is used to store battery information for the energy storage device. The battery information includes, but is not limited to, at least one of the following or any combination of two or more of the following: a single identification code of the energy storage device 20; a model code of the energy storage device 20; the rated voltage of the energy storage device 20; the rated current of the energy storage device 20; maximum allowable temperature of the energy storage device 20; maximum current the energy storage device 20 experiences; the maximum temperature experienced by the energy storage device 20; the date of use of the energy storage device 20; a total charge count of the energy storage device 20; total discharge count of the energy storage device 20; total discharge time of the energy storage device 20; and an administrator of the energy storage device 20. The memory 24 is connected to the battery controller 22. The battery controller 22 may read, update, overwrite, and delete the battery information stored in the memory 24.

The first adapter 10a and the second adapter 10b each include a charging circuit 14 and at least one control circuit 13. The charger 30 is connected to an external ac power source through an ac input power line 31. The ac-dc conversion module in the charger 30 converts or converts the ac power of the external ac power source to dc power. The direct current output from the charger 30 is supplied to each of the charging circuits 14 of the first adapter 10a and the second adapter 10 b. Each charging circuit 14 is connected to a respective battery interface 15 and controls the charging current provided from the battery interface 15 to the respective energy storage device 20. Specifically, a switch 141 is provided between the first port 111 of the first adapter 10a and each charging circuit 14. Each switch 141 is controlled by a respective control circuit 13. When one of the energy storage devices 20 is connected to the corresponding battery interface 15, the control circuit 13 controls the corresponding switch 141 to be closed, thereby charging the energy storage device 20. When the energy storage device 20 is disconnected from the battery interface 15, or when the charging of the energy storage device 20 is completed, the control circuit 13 turns off the switch 141. It should be noted that the first port and the second port are configured to transmit an electrical signal or a communication signal.

When the energy storage device 20 is electrically connected to the battery interface 15, the control circuit 13 in the adapter is connected to the corresponding battery controller 22 in order to enable communication therebetween. The control circuit 13 acquires battery information stored in the corresponding battery memory 24 from each battery controller 22. In addition, the control circuit 13 may obtain an indication of the status of the respective energy storage device 20 from each battery controller 22. For example, the status indication of each energy storage device 20 includes at least one or any combination of two or more of the following: a charge level of the energy storage device 20; the output voltage of the energy storage device 20; internal resistance of the energy storage device 20; the temperature of the energy storage device 20 and the charging time of the energy storage device 20. The control circuit 13 stores the acquired battery information and the status indication of each energy storage device 20 in the memory. The battery information and status indication for each energy storage device 20 is stored in a corresponding memory along with the interface identification information of the battery interface 15 to which the energy storage device 20 is connected.

In some embodiments, the first adapter 10a further comprises communication circuitry (not shown). Specifically, the communication circuit is connected to the control circuit 13. The communication circuit may be connected to the remote device by wireless or wired means to enable communication therebetween. The control circuit 13 may send and receive information or signals to a remote device via the communication circuit. The remote device referred to herein may be any of the remote devices described above, such as, but not limited to, a mobile phone, a smart phone, a tablet computer, or some other (e.g., portable) computer device.

Next, a charge control method of the charging system 100 will be described below.

In the present embodiment, the control circuit 13 controls whether to charge the energy storage device 20 mounted to the adapter 10 through the charging circuit 14 according to information received by at least one of the first port and the second port of the adapter. Specifically, the control circuit is at least used for controlling the on-off of the charging current between the first port and the second port.

In some embodiments, the control circuit 13 controls the charging circuit 14 to simultaneously charge a plurality of energy storage devices accommodated in a plurality of junctions. Specifically, when a plurality of energy storage devices are mounted to the adapter and need to be charged, the control circuit 14 controls the corresponding switch 141 to be closed, so that the direct current output by the charger flows through the charging current, and the energy storage devices are charged. It will be appreciated that when the charger is connected with a plurality of first adapters and second adapters at the same time, the control method described above may also be used to charge a plurality of energy storage devices mounted on the adapters.

In some embodiments, the control circuit 13 controls the charging circuit 14 to charge the energy storage device with the largest remaining energy among the plurality of energy storage devices accommodated in the plurality of junctions preferentially. Specifically, when a plurality of energy storage devices are mounted to the adapter, the battery communication terminal 20c of the energy storage device is connected to the communication terminal in the battery interface 15 of the adapter, the control circuit 13 is connected to the battery controller 22 to obtain the remaining power of the current plurality of energy storage devices, and the switch 141 corresponding to the energy storage device with the highest remaining power is controlled to be closed to charge the corresponding energy storage device preferentially. When the above-mentioned charging of the energy storage device is completed, the control circuit 13 charges the energy storage device with more current remaining power again. In this cycle, charging is completed until all the energy storage devices mounted to the adapter. This has the advantage that when a user is in urgent need of a fully charged energy storage device, the adapter can maximally distribute power to the energy storage device with the largest current remaining capacity for charging, so as to meet the needs of the user as soon as possible. It will be appreciated that when the charger is connected with the first adapter and the plurality of second adapters at the same time, the control method described above may also be used to charge the plurality of energy storage devices mounted on the adapters.

In some embodiments, the charging system further includes an operation member, and the control circuit 13 controls the charging circuit 14 to charge the plurality of energy storage devices accommodated in the plurality of coupling portions according to a sequence set by the operation member. In particular, the operating member may be provided as a switch mounted on the housing of the adapter. The operating member may also be provided as a wireless device. When a user needs to charge a plurality of energy storage devices, the operation piece is controlled to charge the designated energy storage devices. The advantage of this is that the adaptor is highly operable and has a high charging flexibility, and the user can set the energy storage device that needs to be charged with priority according to his own needs. It will be appreciated that when the charger is connected with the first adapter and the plurality of second adapters at the same time, the control method described above may also be used to charge the plurality of energy storage devices mounted on the adapters.

In particular, the adapter may be configured to receive an operation instruction signal from the operation piece. The operation instruction signal may be a charge start signal or a charge stop signal for instructing the adapter to perform various operations. In this case, the operation instruction signal is preferably received together with the interface identification information of the battery interface 15 that is the target of the operation instruction signal. According to this configuration, the user can specify (select) a specific battery interface 15 and start or stop the charging of that battery interface 15.

In some embodiments, when the charger is connected with at least one first adapter and at least one second adapter at the same time, the charging may be performed in a preset order. In particular, the energy storage device on the first adapter is charged with priority. In particular, the energy storage device on the second adapter is charged with priority. The preset sequence can be set by the user. Of course, the preset order may be to specify the priority among the adapters in advance at the time of shipment.

In some embodiments, the current output by the charger flows through the first adapter and the second adapter to cause the first adapter and the second adapter to perform a charging function. The control circuit controls the current output by the charger to flow through the second adapter when the first adapter is partially damaged, so that the second adapter performs a charging function.

The charging system 100 discussed above includes at least one first adapter 10a and at least one second adapter 10b, and is configured to electrically connect the first adapter 10a and the second adapter 10 b. However, the applicable adapter of the charging system 100 in the present application is not limited to this configuration. For example, fig. 8 shows another configuration of the adapter in the present application. The adapter in this embodiment can be used as both a charger and an adapter.

An adapter of another configuration will now be described with reference to fig. 8 to 13.

The charging system 100 further includes an adapter 10c, the adapter 10c including a housing 11, a plurality of coupling parts 12, and a handle 1111 for a user to hold. The plurality of combining parts 12 are arranged on the shell 11 and are used for installing a plurality of energy storage devices. The joint 12 includes at least one first joint 121 and at least one second joint 122. Wherein the handle 1111 is integrally formed with the housing 11. Of course, the handle 1111 is also provided fixedly mounted to the housing 11 by means of fitting. In this embodiment, the output power of the adapter 10c is 500W or more and 2000W or less.

In some embodiments, the adapter 10c includes at least two second junctions 122. The plurality of second coupling parts 122 are arranged in a straight line parallel to the extending direction of the handle 1111. Wherein the interfaces of the first bonding portion 121 and the second bonding portion 122 are the same. In some embodiments, the first bond 121 and the second bond 122 are different. Specifically, the interfaces of the first bonding portion 121 and the second bonding portion 122 are different.

In some embodiments, the energy storage devices mounted to the adapter 10c may have different characteristics. Specifically, the energy storage devices include at least one first energy storage device 20a and at least one second energy storage device 20b. Wherein the capacity of the first energy storage device 20a is greater than or equal to twice the capacity of the second energy storage device 20b. The first energy storage device comprises at least one first cell unit and the second energy storage device comprises at least one second cell unit, the capacity of the first cell unit being at least four times the capacity of the second cell unit. The first energy storage device 20a is mounted to the first coupling portion 121, and the second energy storage device 20b is mounted to the second coupling portion 122. In the present embodiment, the first energy storage device 20a has a first characteristic, and the second energy storage device 20b has a second characteristic different from the first characteristic. The first characteristic and the second characteristic are at least one of physical size, shape, chemical nature, and operational characteristic. Wherein the first energy storage device 20a comprises a lithium iron phosphate cell and the second energy storage device 20b comprises a ternary lithium cell. Types of first energy storage devices include, but are not limited to, LFP, sodium ion, solid/semi-solid, 21700 battery, 40135 battery, 4680 battery, 46950 battery, 46120 battery, 35184.

In some embodiments, the height of the first energy storage device 20a is greater than the height of the second energy storage device 20 b. The first energy storage device 20a is mounted on the adapter 10c to a greater height than the second energy storage device 20b is mounted on the adapter 10 c.

The first coupling portion 121 or the second coupling portion 122 for mounting the first energy storage device 20a or the second energy storage device 20b in the present embodiment is disposed at both front and rear sides of the adapter 10 c. It is understood that the first and second coupling parts 121 and 122 are disposed back-to-back. The advantage of this design is that the energy storage device mounted adaptor can be more stable when the weight and volume of the first and second energy storage devices 20a and 20b mounted to the adaptor 10c are different. On the other hand, by such design, the entire center of gravity can be closer to the vicinity of the handle, and the user can save more effort when carrying the handle 1111.

In this embodiment, the up, down, left, right, front, and rear directions as shown in fig. 8 are defined. The left-right direction is defined as the extending direction of the housing 11 of the adapter 10 c. The projection of the adapter 10c on a plane perpendicular to the left-right direction is substantially T-shaped. Referring to fig. 8 to 9b, the first and second energy storage devices 20a and 20b can be detachably coupled to the first coupling portion 121 or the second coupling portion 122 of the adapter 10c in the up-down direction or the front-rear direction. The handle 1111 is provided at an upper portion of the housing 11 of the adapter 10c, and extends in the left-right direction. In some embodiments, as shown in fig. 9a, the ratio of the length L2 of the handle 1111 in the left-right direction to the length L3 of the adapter 10c in the left-right direction is 0.7 or more and 1 or less.

In some embodiments, the projection of the handle 1111 onto the bottom surface of the adapter 10c is located between the projection of the first coupling portion 121 onto the bottom surface of the adapter 10c and the projection of the second coupling portion 122 onto the bottom surface of the adapter. Specifically, the projected area of the second coupling portion 122 on the bottom surface of the adapter 10c is larger than the projected area of the first coupling portion 121 on the bottom surface of the adapter 10 c.

In this embodiment, the adapter 10c has a first port 111 and a second port 112. The first port 111 is used as an electric energy input port, and the second port 112 is used as an electric energy output port for connecting with the second charging device. Specifically, when the first port 111 is not connected to an external power source, the first energy storage device 20a charges the second energy storage device 20 b. When the first port 111 is connected to an external power source, the charging circuit charges the first energy storage device 20a or the second energy storage device 20b using the external power source. When the first port 111 is connected to an external power source, the charging circuit uses the external power source to charge both the first energy storage device 20a and the second energy storage device 20 b. In some embodiments, the charging circuit is further configured to charge a second energy storage device of the two second energy storage devices that has the greatest amount of remaining energy using the first energy storage device. It should be noted that the external power source may be a charger or may be other external dc power. In some embodiments, the external power source is an ac power source. The charger further includes an inverter circuit for converting an ac power source to a dc power source. In some embodiments, the external power source is a direct current power source of high power charger output. The high power charger described above may be understood as the charger 30 in the charging system 100. In some embodiments, the adapter 10c includes a securing assembly and a support assembly. The structure and function of the fixing assembly and the supporting assembly have been described above, and will not be described here again.

Next, the operation principle when the adapter 10c is electrically connected to the charger 30 will be described.

In some embodiments, referring to fig. 10, the charging system 100 includes a charger 30, a first adapter 10a, a second adapter 10b, and an adapter 10c. Specifically, the first port 111 of the adapter 10c is connected to the second port 112 of the second adapter 10b, thereby receiving the direct current output from the charger 30 to charge the first energy storage device 20a and the second energy storage device 20b at the same time. It should be noted that the adapter 10c may also be connected between the second adapters 10b after the first adapter 10 a. It is understood that the order of connection of the first adapter 10a, the second adapter 10b, and the adapter 10c is not fixed.

In some embodiments, referring to fig. 11, the charging system 100 includes a charger 30 and an adapter 10c. Wherein the first port 111 of the adapter 10c is electrically connected to the output port 33 of the charger 30 for receiving the direct current output from the charger 30 to charge the energy storage device 20a or 20b mounted to the adapter 10c.

In the above embodiment, the adapter 10c is electrically connected to the charger 30 for supplying the charging voltage to the energy storage device mounted thereto. In this embodiment, the energy storage devices on the first adapter 10a, the second adapter 10b, and the adapter 10c are charged in a preset order.

In some embodiments, the adapter 10c functions as a charger. The difference from the two embodiments described above is that the adapter 10c does not have to be electrically connected to the charger 30 to enable charging of the second energy storage device 20 b. It will be appreciated that the first energy storage device 20a mounted on the adapter 10c charges the second energy storage device 20b mounted on the adapter 10 c. The control circuit is configured to control the first energy storage device 20a to charge the second energy storage device 20b when the operation parameter of the first energy storage device 20a is greater than or equal to a preset value. Wherein the operating parameters include, but are not limited to, state of charge, state of health, etc. of the first energy storage device 20 a.

In some embodiments, the first energy storage device 20a charges the plurality of second energy storage devices 20b mounted to the adapter 10c simultaneously. In some embodiments, the first energy storage device 20a preferentially charges the second energy storage device 20b with the largest amount of remaining energy among the plurality of second energy storage devices 20 b. In some embodiments, the first energy storage device 20a charges the plurality of second energy storage devices 20b in a preset sequence.

The second charging circuit 14c of the adapter 10c in the present embodiment is different from the charging circuits 14 in the first adapter 10a and the second adapter 10b described above in that: the second charging circuit 14c further includes a dc-dc conversion circuit 142. In the present embodiment, the output power of the charging circuit 14 is 500W or more and 2000W or less.

Next, the operation of the adapter 10c in the present embodiment will be described with reference to fig. 12.

After the adapter 10c is electrically connected to the charger 30, the control circuit 13 controls the switch 141 to be closed. A part of the direct current output from the charger 30 charges the first energy storage device 20a through the charging circuit 14. Another portion of the direct current output from the charger 30 charges the second energy storage device 20b through the second charging circuit 14 c.

When the adapter 10c is not connected to the charger 30, the control circuit 13 controls the switch 141 to be closed, and the direct current output by the first energy storage device 20c charges the second energy storage device 20b through the second charging circuit 14 c.

In some embodiments, when the adapter 10c is not connected to the charger 30, the first energy storage device 20a is able to charge the second energy storage device 20b while also being able to charge the energy storage devices on the remaining adapters electrically connected to the charger 30. Specifically, referring to fig. 10, when the adapter 10c is not connected to the charger 30, the first energy storage device 20a can also charge the energy storage device mounted to the first adapter 10a or to the second adapter 10 b.

In some embodiments, a portion of the direct current output by the charger 30 charges the first energy storage device 20a through the charging circuit 14. Another portion of the direct current output from the charger 30 charges the second energy storage device 20b through the second charging circuit 14 c. Note that the dc power described above does not pass through the dc-dc conversion circuit 142. When the adapter 10c is not connected to the charger 30, the dc power output by the first energy storage device 20a charges the second energy storage device 20b through the second charging circuit 14c including the dc-dc conversion circuit 142.

In some embodiments, the dc-dc conversion circuit 142 adopts the topology shown in fig. 13 to convert the dc power output by the charger 30 or the dc power U1 output by the first energy storage device 20a into the dc power U2 to provide the charging voltage for the second energy storage device 20 b. The dc-dc conversion circuit 142 at least includes a switching transistor Q1, a switching transistor Q2, a switching transistor Q3, and a switching transistor Q4, a capacitor C1, a capacitor C2, and an inductor L. The control circuit 13 is connected to the gates of the switching tube Q1, the switching tube Q2, the switching tube Q3, and the switching tube Q4, and is used to control the switching tube Q1, the switching tube Q2, the switching tube Q3, and the switching tube Q4 to be turned on and off, so as to implement the voltage conversion function of the dc-dc conversion circuit. The dc-dc converter 142 in this embodiment can be understood as a Four-Switch Buck-Boost (FSBB) circuit. The FSBB circuit can realize soft switching so as to improve the conversion efficiency of the direct current-direct current conversion circuit.

Next, the topology of the FSBB circuit and its control method described above are specifically described with reference to fig. 13 to 15.

Specifically, as shown in fig. 14a and 15, the control circuit controls the switching transistors Q1 and Q4 to be turned on and the switching transistors Q2 and Q3 to be turned off in the period of T1, the inductance voltage is U1, and the inductance current i _L The rising slope is U1/L, and the current i is output _o Is 0. The above process is referred to as the FSBB circuit being in operating mode a. As shown in FIGS. 14b andin FIG. 15, the control device controls the switching transistors Q1 and Q2 to be turned on and the switching transistors Q3 and Q4 to be turned off in the period of T2, the inductance voltage is U1-U2, and the inductance current i _L The rising slope is U1-U2/L, and the current i is output _o Equal to the inductor current i _L . The above process is referred to as the FSBB circuit being in operating mode B. As shown in fig. 14c and 15, the control device controls the switching transistors Q2 and Q3 to be turned on and the switching transistors Q1 and Q4 to be turned off in the period T3, the inductance voltage is U2, and the inductance current i _L The rising slope is-U1/L, and the current i is output _o Equal to the inductor current i _L . The above process is referred to as the FSBB circuit being in operating mode C. As shown in fig. 14d and 15, the control device controls the switching transistors Q3 and Q4 to be turned on and the switching transistors Q1 and Q2 to be turned off in the period T4, the inductance voltage is 0, and the inductance current i _L The slope of (2) is 0, and the output current i _o Equal to 0. The above process is referred to as the FSBB circuit being in operating mode D. The inductor current direction changes twice in one cycle, there is a negative current Id to achieve zero voltage turn-on of the switching transistors Q1 and Q4.

The four operating modes can form different operating modes of the FSBB circuit. For example, modality a and modality B may be equivalent to Boost modes of operation, and modality B and modality C may be equivalent to Buck modes of operation. The inductance voltage of the module D is O, and the working frequency of the circuit can be maintained by increasing or decreasing the duration of the mode D.

Referring to fig. 16 and 18, the present application further discloses a power supply system 200, specifically an ac/dc bidirectional power supply system. The power supply system 200 includes a power source 210, a power conversion device 220, and a power reception device 230. Wherein the power conversion device 220 is configured to electrically connect with the power source 210 and convert a characteristic of the current drawn from the power source 210. The plurality of power receiving devices 230 are electrically connected with the power converting device 220 to obtain power in the power source 210.

In some embodiments, the output power of the electrical energy conversion device 220 is 10W or more and 10KW or less. In some embodiments, the output power of the electrical energy conversion device 220 is 10W or more and 250W or less. In some embodiments, the output power of the electrical energy conversion device 220 is greater than or equal to 250W and less than or equal to 550W. In some embodiments, the output power of the electrical energy conversion device 220 is 500W or more and 10KW or less. In some embodiments, the output power of the electrical energy conversion device 220 is greater than or equal to 1000W and less than or equal to 10KW. In some embodiments, the output power of the electrical energy conversion device 220 is greater than or equal to 1KW and less than or equal to 3KW. In some embodiments, the output power of the electrical energy conversion device 220 is 3KW or more and 5KW or less. In some embodiments, the output power of the electrical energy conversion device 220 is greater than or equal to 5KW and less than or equal to 7KW. In some embodiments, the output power of the electrical energy conversion device 220 is 7KW or more and 10KW or less. In some embodiments, the output power of the electrical energy conversion device 220 may also include 10w,50w,100w,200w,500w,800w,1kw,1.5kw,2kw,2.5kw,3kw,3.5kw,4kw,4.5kw,5kw,5.5kw,6kw,6.5kw,7kw,7.5kw,8kw,8.5kw,9kw,9.5kw,10kw.

The power source 210 sources include at least one of a solar panel 211, a trolley charging post 212, an in-vehicle cigar lighter 213, a utility outlet 214, or a battery pack 215. Wherein the output power of the solar panel 211 is 100W or more. Of course, the solar panel 211 may have a high power output capability with an output power of 1000W or more. The output of the trolley charging post 212 powers the power receiving device 100 in the charging system 200 through the power conversion arrangement 220. In some embodiments, the output power of the trolley charge pile 212 is greater than or equal to 1000W. The in-vehicle cigar lighter 213 outputs 100W or more. Of course, the in-vehicle cigar lighter 213 may also have a high power output capability, with an output power of 1000W or more. In some embodiments, in-vehicle cigar lighter 213 may be connected to a dc-dc charger to output electrical energy from an on-board power source to power a battery pack or dc appliance electrically connected to the dc-dc charger. The battery pack 215 may be an external battery pack, or may be an internal battery pack of a saddle-type vehicle. Types of battery packs described above include, but are not limited to, LFP, sodium ion, solid/semi-solid, 21700 battery, 40135 battery, 4680 battery, 46950 battery, 46120 battery, 35184.

The power conversion device 220 includes at least one of an ac-dc charger, a bi-directional power supply, a dc-dc charger, and a saddle-type vehicle. Specifically, the ac-dc charger is at least used to convert ac power accessed from the mains outlet into dc power for use by the energy receiving device 230. In some embodiments, the output power of the ac-dc charger is greater than or equal to 100W. In some embodiments, the output power of the ac-dc charger is greater than or equal to 210W. In some embodiments, the ac-dc charger also has a large power output capability, with an output power of 1000W or more. The dc-dc charger is at least used to convert dc power from a solar panel, EV charging, in-vehicle cigar lighter or battery pack into dc power adapted to the power receiving device. When the saddle-ride type vehicle is used as the electric energy conversion device 220, the battery pack built in the saddle-ride type vehicle can be used as a power supply to convert the direct current in the energy storage device into the alternating current for output.

The power receiving device 230 includes at least one of a device mounted with a battery pack and an ac electric appliance 235. The ac electrical appliance may be a household electrical appliance such as a television or a barbecue oven, and the power supply 210 outputs ac power to supply power to the television or the barbecue oven through the power conversion device 220. In some embodiments, the battery pack mounted device includes, but is not limited to, at least one of a dc-dc charger, a power adapter, or a saddle-ride type vehicle or an outdoor walk-through device. A DC-DC charger is coupled to the saddle-ride type vehicle. In some embodiments, the power receiving device 230 may include a plurality of sequentially connected devices for mounting battery packs. The power receiving apparatus is configured to detachably mount a plurality of energy storage devices. The plurality of energy storage devices includes at least a first energy storage device and a second energy storage device. When the power supply is electrified, the power supply charges the first energy storage device and the second energy storage device; when the power supply is powered off, the first energy storage device charges the second energy storage device.

In some embodiments, the battery pack mounted device includes a first power adapter 231, a second power adapter 232, a dc-dc charger 233, and a riding vehicle 234 connected in sequence. Of course, the first power adapter 231, the dc-dc charger 233, the second power adapter 232, and the saddle-type vehicle 234 may be connected in this order. The power conversion device 220 exchanges control information and other information with the first power adapter 231, the second power adapter 232, and the dc-dc charger 233 by means of power carrier communication or wireless communication.

In some embodiments, the battery pack includes at least one cell, and at least one of the power receiving devices 230 is capable of achieving a charge rate of the cell of 8C or more. In some embodiments, at least one of the power receiving devices 230 is capable of achieving a charge rate of the cell unit of 9C or greater. In some embodiments, at least one of the power receiving devices 230 is capable of achieving a battery cell charge rate of greater than or equal to 10C.

Specifically, the first power adapter 231 is used to mount the first battery pack 231a. A second power adapter 232 is used to mount a second battery pack 232a. Wherein the number of the first battery packs 231a or the second battery packs 232a is one or more. The types, chemical parameters, and characteristic parameters of the plurality of first battery packs 231a or second battery packs 232a may be the same or different. The number of dc-dc chargers 233 may be one or more. The dc-dc charger 233 is used to install the first energy storage device 233a or the second energy storage device 233b. When the dc-dc charger 233 is electrically connected to the charging system 200, it is capable of receiving the electric energy output by the electric energy conversion device 220 to charge the first energy storage device 233a or the second energy storage device 233b connected thereto. When the dc-dc charger 233 cannot obtain the electric power from the power supply system 200, the second energy storage device 233b may be charged by the first energy storage device 233 a. In some embodiments, the first energy storage device 233a is capable of simultaneously charging a plurality of second energy storage devices 233b mounted to the dc-dc charger 233. In some embodiments, the first energy storage device is mounted to a first dc-dc charger and the second energy storage device is mounted to a second dc-dc charger. Wherein the first energy storage device is capable of charging the second energy storage device. In some embodiments, the first energy storage device is mounted to the saddle-type vehicle and the second energy storage device is mounted to the dc-dc charger. The first energy storage device charges the second energy storage device.

The bi-directional charging system also includes a wireless communication module communicatively coupled to the remote device. The wireless communication module is configured to receive a signal output by the remote device to control the first energy storage device to charge the second energy storage device. In some embodiments, the wireless communication module is configured to receive a signal output by the remote device to control the first energy storage device on the dc-dc charger or the first energy storage device on the ride-on vehicle to charge the second energy storage device. In some embodiments, the remote device is configured to obtain a signal output by the wireless communication module to display the remaining charge time or charge failure information.

In some embodiments, the saddle-ride type vehicle or the outdoor traveling device can receive the direct current output from the power conversion device 220 to charge a battery pack built therein. In some embodiments, the ride-on vehicle may also be capable of outputting direct current to power other power receiving devices 230 connected to the power conversion device 220. The saddle-riding vehicle includes a first interface configured to electrically connect with the electrical power output port of the first adapter or the electrical power output port of the second adapter. The manner in which the saddle-ride type vehicle is connected to the power output port includes, but is not limited to, a wired connection, a wireless connection, and a hard connection.

In some embodiments, when the power conversion device 220 in the power supply system is provided as a saddle-type vehicle. The power supply 210 is a battery pack provided in the saddle-type vehicle. In this embodiment, the power conversion device 220 is a bi-directional inverter module. The electric energy in the battery pack can be output by the bidirectional inversion module to be used by televisions and barbecue ovens, and output direct current to be used by the battery pack mounted on the first adapter or the second adapter and the direct current-direct current charger. The saddle-riding type vehicle can also output alternating current to directly supply power to a television or household appliance of the barbecue oven. In some embodiments, the ride-on vehicle is also capable of outputting direct current adapted to the cell phone or 4G gateway to charge it.

Specifically, a saddle-ride type vehicle or an outdoor traveling apparatus includes a main body; the traveling wheel set comprises traveling wheels for supporting the host; the driving assembly is mounted to the host machine and comprises a motor for driving the travelling wheels to rotate; an energy storage device detachably mounted to the host, the energy storage device configured to power at least the motor; the outdoor walking equipment further comprises a bidirectional inversion module, the bidirectional inversion template is configured to be electrically connected with the energy storage device, and the bidirectional inversion module outputs electric energy of the energy storage device in the form of alternating current.

Referring to fig. 19a and 19b, a saddle-type vehicle 234 is coupled to or has a bi-directional inverter module 234a built therein for converting electric energy. The bi-directional inverter module is disposed within the host, or the bi-directional inverter module is independent of the host and removably coupled 234b to the energy storage device. The saddle-type vehicle 234 includes a first interface 2341, a second interface 2342, and a third interface 2343, which are electrically connected to the bidirectional inverter module. The first interface 2341 is used for accessing electric energy from a power supply system or outputting electric energy to the power supply system. Specifically, the first interface 2341 is configured to receive the direct current output by the electric energy conversion device 220, so as to charge the internal energy storage device. Of course, the first interface 2341 is also capable of outputting direct current to provide power to other power receiving devices 230 in the charging system 200. The second interface 2342 is used for outputting the electric energy in the energy storage device in the form of alternating current to supply power for household appliances such as televisions or barbecue ovens. The third interface 2342 is used to output direct current to charge a cell phone or a 4G gateway, etc. The third interface may be a USB interface, and specifically may be Type-a or Type-C. The energy storage device in the saddle-riding type vehicle can comprise a plurality of battery packs of the same type or can also comprise battery packs of different types. For example, the energy storage device includes a battery pack having a lithium iron phosphate cell and a battery pack having a ternary lithium cell.

In some embodiments, referring to fig. 20, when the power conversion device 220 in the power supply system is configured as an ac-dc charger, power in the power supply 210 can be transferred to the first power adapter 231, the second power adapter 232, the dc-dc charger 233, and the saddle-type vehicle 234. Of course, the product can also be transmitted to household appliances such as televisions, barbecue ovens and the like. The power source 210 may be a solar panel 211, a trolley charging pile 212, an in-vehicle cigar lighter 213, and a mains socket 214. It should be noted that the ac-dc charger also has a dc input port for receiving dc power and converting the voltage to output dc power adapted to the power receiving device. Of course, the ac-dc charger may not have a dc input, and the power source that can be connected is the utility outlet 214.

In some embodiments, referring to fig. 21, when the power conversion apparatus 220 in the power supply system is configured as a dc-dc charger, power in the power source 210 can be transferred to the first and second energy storage devices electrically connected to the dc-dc charger and the ride-on vehicle 234. The power source 210 may be a solar panel 211, a trolley charging pile 212, and an in-vehicle cigar lighter 213. It should be noted that the power supply 210 may also be a battery pack. The battery pack may be the first energy storage device, the second energy storage device, or the battery pack on the saddle-type vehicle.

In some embodiments, when the power conversion device 220 in the power supply system is configured as a bi-directional power source, power in the power source 210 can be transferred to the first power adapter 231, the second power adapter 232, the dc-dc charger 233, and the ride-on vehicle 234. The power source 210 may be a solar panel 211, a trolley charging pile 212, an in-vehicle cigar lighter 213, and a mains socket 214. It should be noted that, the battery pack may also be used as a power source, and the electric energy of the battery pack is converted into ac power after passing through the bidirectional power source, so as to be used by the ac power supply. The battery pack may be a battery pack mounted on the first adapter, the second adapter, a dc-dc charger, or a saddle-type vehicle.

Referring to fig. 17, in some embodiments, the electrical energy conversion device 220 further includes an ac power outlet 221. When the power source is connected, the power can supply the ac electric appliance 235 connected thereto through the ac power outlet 221. When the power supply is turned off, the electric power of the plurality of energy storage devices mounted on the electric power receiving apparatus is output in the form of alternating current through the alternating current output port 221. The ac power outlet 221 includes at least one of a mains double-ended or triple-ended outlet.

In some embodiments, the power supply system provides power to the ac appliance to ensure its proper operation. When the utility power interface can not be connected to the utility power, the battery pack in the charging system discharges to ensure the normal use of the AC appliance. The battery pack includes a battery pack mounted on the first adapter, the second adapter, the DC-DC charging and the riding type vehicle. Specifically, the bidirectional power supply converts the direct current output by the battery pack into alternating current adapted to the alternating current electric appliance. Of course, the discharge power of the power supply system depends on the type and number of battery packs. The user can set the discharging sequence of a plurality of battery packs in the charging system through the remote equipment, and prompts the discharging countdown, namely the remaining endurance. When the utility power interface is connected with the utility power, the charging system discharges the alternating current electric appliance through the bidirectional power supply and the electric car charging pile so as to ensure the normal use of the alternating current electric appliance. In some embodiments, when more ac power is required, the battery pack in the power receiving device may power the ac power through the bi-directional power source.

The charging system in the application also has the function of charging and discharging simultaneously. For example, the power conversion device receives the utility power accessed by the utility power interface and transmits the received power to the adapter, the dc-dc charger, and the riding vehicle for charging the battery pack thereon. Meanwhile, the electric energy replacing device outputs the received commercial power for the AC appliance. For example, the power conversion device receives power output from a solar panel or a trolley charging pile and transmits the received power to an adapter, a dc-dc charger, and a saddle-type vehicle to charge a battery pack thereon. At the same time, the battery pack discharges to the peripheral device. For example, the power conversion device receives power output from the electric car charging pile and transmits the power to a battery pack mounted on an adapter, a dc-dc charger, and a saddle-type vehicle for charging. At the same time, the battery pack discharges to the peripheral device. For example, solar panels output electrical energy to an adapter or dc-dc charger to charge a plurality of battery packs electrically connected thereto. At the same time, the first energy storage device, which is electrically connected to the dc-dc charger, is able to charge the second energy storage device.

Referring to fig. 22, the ac power outlet 221 can be connected to the home power grid 300 to supply power to the home power grid 300. The domestic network 300 has an ac input interface 310 for connecting to the ac outlet 221, a 56V power bus 22, an ac device interface 13 for connecting to the ac device 131, and a dc device interface 14 for connecting to the dc device 143 or the energy storage device 142. The dc device interface 14 includes a power converter or a bi-directional dc converter 141. The home power grid 300 further comprises a bi-directional inverter device 15 electrically connected to the mains interface 11 for processing the mains power accessed from the mains interface 11. Specifically, the bidirectional inverter device 15 is a bidirectional inverter for converting an input alternating current into a direct current or an input direct current into an alternating current. The home grid 300 also includes a solar interface 16 electrically connected to the power bus 22.

Referring to fig. 23, power supply system 200 also includes a wireless communication module 240 communicatively coupled to remote device 400, the wireless communication module configured to be communicatively coupled to a home power grid. The remote equipment can record the times and the duration of the acquisition of the electric energy by the household power grid through the alternating current input interface. The remote device is configured for a user to set a circuit in the home network that is powered preferentially. The remote device 400 may be a cell phone, a computer, a tablet, or other devices.

In this application, the power supply system may also be controlled by a remote device. The user can control the operation of the power supply system through the remote device. Specifically, the power supply system further includes a wireless communication module configured to be communicatively connected to the first adapter and the second adapter, and when the wireless communication module receives a signal of the remote device, the first adapter and the second adapter charge the energy storage device mounted to the first adapter and the energy storage device mounted to the second adapter according to an order in which the signals are set.

In some embodiments, a user is able to control the order of charging and discharging of the power receiving devices in the power supply system through the remote device. Specifically, the power receiving device includes a plurality of adapters arranged in sequence and a dc-dc charger. Wherein, the adapter and the direct current-direct current charger are provided with a battery pack. Illustratively, the number of sequentially connected adapters in the charging system is 3 and the number of dc-dc chargers is 2. In order to more clearly explain the charging strategy, the numbers of the set adapters are number 1, number 2 and number 3 in sequence. The direct current-direct current charger is numbered No. 1 and No. 2. After the power supply 10 is connected, it is used to select different charging modes on the remote device, such as a sequential charging mode, a rotation charging mode.

In the sequential charging mode, a single sequential charging mode or a combined sequential charging mode may be selected. When the user selects the single sequential charging mode, the electric energy provided by the power supply 10 firstly charges the battery pack on the No. 1 adapter, then charges the battery pack on the No. 2 adapter after the battery pack on the No. 1 adapter is fully charged, then charges the battery pack on the No. 3 adapter after the battery pack on the No. 2 adapter is fully charged, then charges the battery pack on the No. 1 direct current-direct current charger after the battery pack on the No. 3 adapter is fully charged, and then charges the battery pack on the No. 2 direct current-direct current charger after the battery pack on the No. 1 direct current-direct current charger is fully charged until the battery pack on the No. 2 direct current-direct current charger is fully charged. When the user selects the combined sequential charging mode, the power provided by the power supply 10 charges the battery packs on the adapter No. 1 and the adapter No. 2 at the same time, then charges the battery packs on the adapter No. 3 and the direct current-direct current charger No. 1, and finally charges the battery packs on the direct current-direct current charger No. 2. Of course, the user may set the above charging combination by himself, for example, firstly charge the battery packs on the adapter No. 1, the adapter No. 2 and the adapter No. 3, and then charge the battery packs on the charger No. 1 dc-dc and the charger No. 2 dc-dc.

In the alternate charging mode, a single alternate charging mode or a combined alternate charging mode may be selected. When the user selects a single alternate charging mode, the electric energy in the power supply 10 stops charging after charging the battery pack on the adapter No. 1 for a preset time, then stops charging after charging the battery pack on the adapter No. 2 for a preset time, then stops charging after charging the battery pack on the adapter No. 3 for a preset time, then stops charging after charging the battery pack on the direct current-direct current charger No. 1 for a preset time, then stops charging after charging the battery pack on the direct current-direct current charger No. 2 for a preset time, then continues to stop charging after charging the battery pack on the adapter No. 1 for a preset time, and continues to stop charging after charging the battery pack on the adapter No. 2 for a preset time, and then sequentially circulates until all the battery packs in the power supply system are fully charged. When the user selects the combined alternate charging mode, the electric energy in the power supply 10 firstly charges the battery packs on the adapter No. 1, the adapter No. 2 and the adapter No. 3 for a preset time, then charges the battery packs on the direct current-direct current charger No. 1 and the direct current-direct current charger No. 2 for a preset time, then charges the battery packs on the adapter No. 1, the adapter No. 2 and the adapter No. 3 for a preset time, and then charges the battery packs, and the power supply is circulated in sequence until all the battery packs are full of electricity. Of course, the user may set the above charging combination by himself, for example, firstly charge the battery pack on the adapter No. 1 and the adapter No. 2, and then charge the battery packs on the adapter No. 3, the direct current-direct current charger No. 1 and the direct current-direct current charger No. 2. The battery pack is charged by adopting the combined alternate charging mode, so that the charging efficiency of the power supply system can be improved.

In some embodiments, the user may set the mode of charging power through the remote device. Specifically, either the fast charge mode or the slow charge mode may be selected. Of course, the charging power is also set according to the demand. For example, the user may set a gear of the charging power, e.g., the user may select a first gear, a second gear, a third gear, or other gears, with different gears corresponding to different charging powers.

In some embodiments, the user may also set the life mode of the battery pack through the remote device. Specifically, the user may have a life pattern of 100%, 90%, or 80%. It will be appreciated that when the life mode of the battery pack is set to 80%, the battery pack will not accept power input when the battery pack reaches 80%. Of course, the life pattern may also include other gears, such as 70% or otherwise.

In some embodiments, the user may set a percentage charge reminder for the battery pack via the remote device. For example, a user may wish to be alerted to a remote device when the battery pack has reached 50%. Of course, the above percentages are set to be only schematically 50% and the user may be reasonably set on the remote device according to actual needs.

In some embodiments, the user may also make a reserved charge setting or a timed charge setting through the remote device. For example, a user may charge a preset battery pack or a power receiving device in a power supply system after reserving for 1 hour on a remote device. Of course, the user can also set the timing charging of the power supply system on the remote equipment, so that the user can be prevented from repeatedly operating, and the convenience and the intellectualization of the whole power supply system are improved.

In some embodiments, the remote device has a controller and memory built into it for storing and calculating the total charge power per day, per week, and per month or year in the power supply system. The user can look up the total charging power through the remote equipment and know the working condition of the whole power supply system. In addition, the remote device can also display the duty ratio of the charging power output by the solar panel in the total charging power to analyze the utilization rate of solar energy.

In some embodiments, the user may also select a preferentially charged power receiving device via the remote device. For example, the user may set the most charged battery pack for preferential charging via the remote device. Of course, the user can also set the battery pack most convenient for the user to take in the power supply system to charge preferentially.

Of course, in some embodiments, the user may customize the charging sequence of the power receiving device via the remote device, or choose to charge a portion of the battery pack.

In order to improve user experience and the intellectualization of the power supply system, the power supply system also has the functions of full power reminding and fault reminding. Specifically, when the power receiving device in the power supply system is fully charged, the user can receive a full charge prompt of the corresponding power receiving device through the remote device. When the power supply system fails, the remote device can display an abnormal problem on the display interface and send a message or an incoming call or alarm to remind the user.

Referring to fig. 24, an adapter 234c is detachably mounted to the electric running apparatus 234 provided with the energy storage device 234 b. Specifically, adapter 234c includes an ac input interface 2341c, an ac output interface 2342c, an energy storage device interface 2343c, and a bi-directional inverter module 234a. Wherein the ac input interface 2341c is configured to input ac power; the ac output interface 2342c is configured to output ac power; the energy storage device interface 2343c is configured to electrically connect with the energy storage device 234 b; the bi-directional inversion module 234a is electrically connected to the ac input interface 2341c, the ac output interface 2342c, and the energy storage device interface 2343c, and the bi-directional inversion module 234a is configured to be able to charge the energy storage device 234b using the ac input by the ac input interface 2341c and output the electric energy of the energy storage device 234b using the ac output interface 2342 c. In some embodiments, ac input interface 2341c is a delta port. In some embodiments, ac output interface 2342c is a three-head socket or a two-head socket. In some embodiments, adapter 234c also includes a USB interface for enabling power to be supplied to a cell phone or 4G gateway. In some embodiments, the energy storage device 234b includes at least one battery pack that is removably connected to the electric drive apparatus. In this embodiment, the output power of adapter 234c is 500W or more and 2000W or less. The total energy of the energy storage device is more than or equal to 0.5 kW.h and less than or equal to 6 kW.h. The electric drive apparatus may be a riding vehicle, such as a riding lawn mower, an all-terrain vehicle. Of course, the electric running apparatus may also be a hand propelled snowplow or a lawnmower. In some embodiments, the electric ride may also be electric motor, UTV, motorboat, drone, or the like.

In some embodiments, the two electric drive devices may be mutually chargeable. The electric driving device comprises a host; the walking wheel set comprises a walking wheel for supporting the host; the driving assembly is mounted to the host machine and comprises a motor for driving the travelling wheels to rotate; the energy storage device is detachably mounted to the host machine and is used for at least supplying power to the motor; a direct current interface electrically connected to the energy storage device, the direct current interface configured to charge the energy storage device when connected to an external power source; the direct current interface is also configured to output direct current and to use the electrical energy of the energy storage device to charge other electrically powered running equipment. In some embodiments, the external power source is other electric drive equipment. In some embodiments, the external power source is a charger. In some embodiments, the dc interface is also capable of charging other devices. Other devices are cell phones, lighting devices or fans, etc.

The charging equipment in the application has stronger carrying capacity and simultaneously carries out anti-theft design and monitoring on the battery pack mounted on the charging equipment.

In some embodiments, a charging device includes a housing; a battery pack interface disposed at the housing, the battery pack interface configured to be capable of coupling with a battery pack; the charging device further comprises an anti-theft device, wherein the anti-theft device comprises a locking state and an unlocking state; when the anti-theft device is in a locked state, the battery pack is limited within a first distance of the charging device; the battery pack is removable from the charging device when the locking device is in the unlocked state. In some embodiments, the anti-theft device is a chain. One end of the anti-theft device is connected to the battery pack, and the other end is connected to the charging equipment. Wherein the first distance is less than or equal to 1 meter. In some embodiments, the first distance is less than or equal to 0.5 meters. The unlocking mode of the anti-theft device can be at least one of fingerprint identification, mechanical lock, sound control, face recognition and remote unlocking. The anti-theft device is configured to unlock or lock a plurality of battery packs mounted to the battery pack interface one by one. The anti-theft device is configured to unlock or lock a plurality of battery packs mounted to the battery pack interface at the same time.

In some embodiments, referring to fig. 25-27, the charging device 500 includes a housing 510, a battery pack interface 511 disposed on the housing 510, the battery pack interface 511 configured to be capable of coupling with a battery pack 520. A fixture 530 configured for operation by a user to switch between a first state and a second state. When the fixing means 530 is in the first state, the battery pack 520 is fixed to the charging device 500, and when the fixing means 530 is in the second state, the battery pack 520 is free to move with respect to the charging device 500. The charging device 500 further comprises a locking means 540, the locking means 540 comprising a locked state and an unlocked state. When the locking device 540 is in the locked state, the securing device 530 is restricted to the first state; when the locking device 540 is in the unlocked state, the securing device 530 can be switched to the second state by user operation.

Specifically, the fixing device 530 is formed with a limiting portion 531, and the locking device 540 is provided with a pawl 541. When the locking device 540 is in the locked state, the limiting portion 531 abuts against the pawl 541, and the fixing device 530 cannot be switched from the first state to the second state. When the user operates the locking device 540 to move in the direction indicated by the arrow a, the stopper 531 is not in contact with the pawl 541, and the fixing device 530 can be switched from the first state to the second state. When the locking device 540 is in the unlocked state and the user operates the locking device 540 to move in the direction indicated by the arrow b, the limiting portion 531 abuts against the pawl 541, and the fixing device 530 cannot be switched from the first state to the second state.

In some embodiments, the locking device 540 is a latch. In some embodiments, the securing device 530 is a clasp. In some embodiments, the unlocking mode of the locking device can be at least one of fingerprint identification, mechanical lock, sound control, face recognition and remote unlocking.

In some embodiments, the locking device or securing device is configured to unlock or lock a plurality of battery packs mounted to the battery pack interface one by one. In some embodiments, the locking device or securing device is configured to unlock or lock multiple battery packs mounted to the battery pack interface simultaneously.

In some embodiments, referring to fig. 28 and 29, the charging device 500 includes a housing 510; at least one battery pack interface 511 disposed at the housing 510, the battery pack interface 511 configured to be capable of coupling with the battery pack 520; a first port 512 disposed on the housing 510, the first port 512 being configured to input or output a current; a second port 513 disposed on the housing 510, the second port 513 being configured to output current or input current; the first port 512 and the second port 513 can be used interchangeably; when the first port 512 is configured to input current, the second port 513 is configured to output current; and when the second port 513 is configured to input current, the first port 512 is configured to output current. Specifically, the first port 512 and the second port 513 have the same shape. In some embodiments, the first port 512 and the second port 513 are symmetrically disposed on either side of the charging device. In some embodiments, the first port 512 and the second port 513 are disposed at an upper portion of the housing 510. In some embodiments, the first port is disposed in an upper portion of the housing and the second port is disposed in a lower portion of the housing. In some embodiments, the first port and the second port are disposed in a lower portion of the housing. In some embodiments, the voltages at the first port 512 and the second port 513 are substantially the same. In some embodiments, the first port 512 is used to connect to the first charging device 500a. The second port 513 is for connecting to the second charging device 500b. The first port 512 and the second port 513 are identical in structure and are capable of receiving current inputs at different times, respectively. The first port 512 and the second port 513 are symmetrically disposed about the bisecting plane 501 of the charging device 500. The first port 512 and the second port 513 are located at an upper portion of the charging device 500. Wherein the first port 512 and the second port 513 are connected to other devices by cables. Specifically, cable 550 includes quarter turn connector 551 and electrical wire 552. Specifically, the cable 550 includes 2 quarter turn joints connected at both ends of the electric wire. Sampling such a cable 550 as described above can save installation space when two charging devices are connected. In some embodiments, the charging device 500 further includes a securing assembly 560, the securing assembly 560 being used to secure the charging device 500 to another object. In some embodiments, the securing assembly 560 is removably mounted to the housing 510. In some embodiments, the securing component 560 is a quick clamp.

In some embodiments, the charging device includes a first adapter and a second adapter, the first adapter including: a housing; at least one receptacle for mounting an energy storage device, the first adapter being capable of charging the energy storage device mounted to the receptacle; the first port is arranged on the shell and is used for being connected with the second adapter; the second adapter includes: a housing; at least one receptacle for mounting an energy storage device, the second adapter being capable of charging the energy storage device mounted to the receptacle; the second port is arranged on the shell and used for being connected with the first adapter; the first port and the second port have the same structure, and the first port and the second port are connected by adopting a cable. The cables may be configured in different lengths. At least one end of the cable is configured as a quarter turn connector. One end of the cable is detachable from the first port. One end of the cable is detachable from the second port. In some embodiments, the first adapter and the second adapter are identical. In some embodiments, the first adapter and the second adapter are different. The first adapter further includes a support assembly capable of supporting the second adapter. The first adapter also includes a securing assembly for securing the first adapter to another object. The first port is disposed at an upper portion of the housing of the first adapter.

Like this, through setting up charging equipment's first port and the same and interchangeable use of outward appearance of second port, can improve user experience, make charging equipment can adapt to more space application scenes, the user of being convenient for installs and the wiring.

In some embodiments, referring to fig. 30 and 31, the charging device 500 includes a housing 510; a first accommodating portion 514 provided to the housing 510 and configured to mount a first energy storage device 521; at least two second receptacles 515 are provided to the housing 510, the second receptacles 515 being configured to mount a second energy storage device 522. Wherein the volume of the first energy storage device 521 is greater than the volume of the second energy storage device 522; the first accommodating portion 514 and the at least two second accommodating portions 515 are respectively disposed at both sides of one partition surface 502. When the second storage devices are installed on the second accommodating portions, and the first storage devices are installed on the first accommodating portions, the projection width of the first storage devices on the separation surface is basically equal to the projection width of all the second storage devices on the separation surface.

In some embodiments, the charging apparatus 500 includes a housing 510, a first accommodating portion 514 disposed on the housing 510 for mounting a first energy storage device 521; the second accommodating portion 515 is disposed on the housing 510 and is used for mounting the second energy storage device 522, and the weight of the first energy storage device 521 is greater than that of the second energy storage device 522. When the charging device 500 is placed on the plane 503, the first energy storage device 521 is inserted into the first accommodating portion 514 along the direction of the first straight line 504, and an included angle formed by the first straight line 504 and the plane 503 is greater than or equal to 0 degrees and less than or equal to 60 degrees. In some embodiments, the first line 504 forms an angle with the plane 503 of greater than or equal to 10 degrees and less than or equal to 45 degrees. In some embodiments, the first line 504 forms an angle with the plane 503 equal to 15 degrees. When the charging apparatus 500 is placed on the plane 503, the first energy storage device 521 is located below the second energy storage device 522 in the up-down direction.

In some embodiments, referring to fig. 32, the charging device 500 further includes a circuit board 570 disposed within the housing 510, the circuit board 570 being substantially parallel to the bottom surface of the charging device 510. Specifically, the circuit board 570 is at least partially disposed under the first and second receiving parts 514 and 515 in the up-down direction. The housing 510 also has a heat sink airflow formed therein that flows substantially along the long end of the circuit board 570.

In some embodiments, the charging device 500 includes a housing 510; at least one battery pack interface 511 is disposed on the housing 510, the battery pack interface 511 being configured to be coupled to a battery pack. The charging device 500 further includes a frame 580, and the housing is accommodated inside a rectangular parallelepiped defined by the frame 580. Specifically, the frame includes or is formed with a handle for a user to carry. In some embodiments, the frame is a plastic material. In some embodiments, the frame is a metal material. In some embodiments, the battery pack is configured to be insertable into the interior of the cuboid from the exterior of the cuboid defined by frame 580 to be coupled to battery pack interface 511. Specifically, the frame includes a rail 581 disposed adjacent the partition 502. It should be noted that the above frame may be understood as a specific embodiment of the support assembly in the present application.

In some embodiments, referring to fig. 32 and 33, the charging device 500 includes a housing 510; at least one battery pack interface 511 disposed at the housing 510, the battery pack interface 511 configured to couple with a battery pack; the plurality of charging devices 500 may be stacked in a first manner and a second manner, wherein a placement direction of the plurality of charging devices in the first manner is different from a placement direction of the plurality of charging devices in the second manner. The charging device further includes a frame, and the case is accommodated inside a rectangular parallelepiped defined by the frame 580. In some embodiments, the frame includes or is formed with a handle for a user to carry. In some embodiments, the top corners of frame 580 form protrusions 583 or depressions 582, which enable mating fixation of the frame 580 when stacked. Specifically, when the charging devices are stacked in the first direction as shown in fig. 34, all the battery packs are available. When the charging devices are stacked in the second orientation as shown in fig. 35, at least a portion of the battery pack is not accessible. In some embodiments, when the charging devices are stacked in a third direction as shown in fig. 39, only the battery pack on the uppermost charging device may be taken.

In some embodiments, the charging device 500 further has a power display unit for displaying a power state of a battery pack mounted thereon.

In some embodiments, the charging device 500 includes a housing 510; the first accommodating portion 514 is disposed on the housing 510, and is used for mounting a first energy storage device 521, where the first energy storage device 521 includes a plurality of first electric cores; a second accommodating portion 515, disposed on the housing 510, for mounting a second energy storage device 522, where the second energy storage device 522 includes a plurality of second electric cores; the volume of the first battery cell is larger than that of the second battery cell. Referring to fig. 35, a plurality of charging devices can be stacked and placed, and when the plurality of charging devices are stacked and placed on the plane 503, the first battery cell is substantially parallel to the plane 503. In some embodiments, the second energy storage device 522 is inserted into the second accommodating portion 515 along the direction of the second straight line 505, where the angle β formed by the second straight line 505 and the plane 503 is greater than or equal to 45 degrees and less than or equal to 80 degrees. In some embodiments, the second straight line 505 forms an angle β with the plane 503 of greater than or equal to 50 degrees and less than or equal to 70 degrees. In some embodiments, the angle β formed by second straight line 505 and plane 503 may be 45 °,50 °,55 °,60 °,65 °,70 °,75 °,80 °.

In some embodiments, referring to fig. 36 and 37, the charging system includes a plurality of charging devices, and a plurality of charging devices 500 can be stacked by a frame 580. Specifically, frame 580 may detachably mount wheels 584 and pull rod 585. When it is necessary to move a plurality of charging devices 500, the charging system can be easily moved by mounting wheels and tie rods to the frame 580 of the lowermost charging device. In some embodiments, referring to fig. 38, the charging system includes a plurality of charging devices 500, and a cabinet 500c for housing the plurality of charging devices, the cabinet 500c having wheels for convenient movement.

Claims

1. A charging system comprising a plurality of devices in cascade, the plurality of devices in cascade comprising at least one first charging device and at least one second charging device, the first charging device comprising:

a housing;

the plurality of accommodating parts are arranged on the shell and used for installing an energy storage device, and the first charging equipment can charge the energy storage device installed on the accommodating parts; and

a connection port for connecting the second charging device or the first charging device;

the second charging apparatus includes:

a housing;

the plurality of accommodating parts are arranged on the shell and used for installing an energy storage device, and the second charging equipment can charge the energy storage device installed on the accommodating parts; and

a connection port for connecting the first charging device or the second charging device;

the charging device is characterized in that the plurality of accommodating parts of the second charging device comprise at least one first accommodating part and at least one second accommodating part, and the shapes or the sizes of the first accommodating part and the second accommodating part are different.

2. The charging system of claim 1, wherein the first receptacle is configured to mount a first energy storage device and the second receptacle is configured to mount a second energy storage device, the first energy storage device having a capacity greater than a capacity of the second energy storage device.

3. The charging system of claim 2, wherein the first energy storage device comprises a plurality of first energy storage cells and the second energy storage device comprises a plurality of second energy storage cells, the first and second energy storage cells being chemically distinct.

4. The charging system of claim 3, wherein the first energy storage unit is a lithium iron phosphate cell.

5. The charging system of claim 3, wherein the second energy storage unit is a ternary lithium cell.

6. The charging system of claim 1, wherein the first charging device and the second charging device are the same.

7. The charging system of claim 1, wherein the first charging device and the second charging device are different.

8. The charging system of claim 1, wherein the second charging device is a riding lawn mower having a charging function.

9. The charging system of claim 1, wherein the first charging device and the second charging device are connectable via a cable.

10. The charging system of claim 1, wherein the first charging device and the second charging device have the same shape of connection port.

11. The charging system according to claim 1, wherein an output power of the first charging device or the second charging device is 500W or more and 2000W or less.

12. The charging system of claim 2, wherein the first energy storage device is capable of charging the second energy storage device.

13. A charging system comprising a plurality of devices in cascade, the plurality of devices in cascade comprising at least one first charging device and at least one second charging device, the first charging device comprising:

a housing;

at least one first accommodating portion provided to the casing for mounting a first energy storage device, the first charging apparatus being capable of charging the first energy storage device mounted to the first accommodating portion; and

the second charging apparatus includes:

a housing;

at least one second accommodating portion provided to the casing for mounting a second energy storage device, the second charging apparatus being capable of charging the second energy storage device mounted to the second accommodating portion; and

Characterized in that the first receiving portion and the second receiving portion are different in shape or size.

14. The charging system of claim 13, wherein the first energy storage device comprises a plurality of first energy storage cells and the second energy storage device comprises a plurality of second energy storage cells, the first and second energy storage cells being chemically distinct.

15. The charging system of claim 14, wherein the first energy storage unit is a lithium iron phosphate cell.

16. The charging system of claim 14, wherein the second energy storage unit is a ternary lithium cell.