Charging system

Abstract

The invention provides a charging system which comprises a multifunctional vehicle, a connecting cable and charging equipment, and the connecting cable is configured to connect the multifunctional vehicle with the charging equipment. The connecting cable is provided with a detection line, the first end of the detection line is connected with the multifunctional vehicle, and the second end of the detection line is connected with a first detection circuit of the charging equipment; a first detection circuit of the charging equipment is configured to detect whether the multifunctional vehicle, the connecting cable and the charging equipment are connected or not, the first detection circuit comprises a vehicle charging access point and a vehicle charging detection point, and the vehicle charging access point is configured to be connected to a second end of the detection line; the charging device is provided with a main control unit, is connected with the vehicle charging detection point, and is configured to obtain the voltage of the vehicle charging detection point, and determine that the connection of the multifunctional vehicle, the connection cable and the charging device is completed under the condition that the voltage of the vehicle charging detection point is a target voltage value.

Description

Technical Field

[0001] This disclosure relates to the field of energy technology, and in particular to charging systems. Background Technology

[0002] Currently, new energy electric multi-purpose vehicles are gradually replacing traditional fuel-powered electric multi-purpose vehicles. Electric multi-purpose vehicles use power batteries, such as lithium batteries, as their power source.

[0003] Therefore, electric multi-functional vehicles, such as ride-on lawnmowers, need to be equipped with onboard chargers for charging, while power tools using battery packs require dedicated battery pack chargers. Users need power adapters for indoor use and portable power banks for outdoor use. Each of these needs requires separate equipment, making operation cumbersome and resulting in a poor user experience. Furthermore, the need to purchase various accessories to meet these diverse requirements increases costs. For example, users who own ride-on lawnmowers and chargers will need to purchase portable power banks separately to address their outdoor power needs.

[0004] At the same time, when charging a multi-functional vehicle, it is also necessary to check whether the multi-functional vehicle, the connecting cable, and the charging equipment are complete; otherwise, charging will fail. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide a charging system that solves the problems in the related art.

[0006] On one hand, a charging system is provided, comprising: a multi-functional vehicle, a connecting cable, and a charging device, wherein the connecting cable is configured to connect the multi-functional vehicle and the charging device;

[0007] The connecting cable is equipped with a detection line, the first end of which is connected to the multi-functional vehicle, and the second end of which is connected to the first detection circuit of the charging equipment.

[0008] The first detection circuit of the charging device is configured to detect whether the multi-functional vehicle, the connecting cable and the charging device are connected. The first detection circuit includes a vehicle charging access point and a vehicle charging detection point. The vehicle charging access point is configured to be connected to the second end of the detection line.

[0009] The charging device is equipped with a main control unit connected to the vehicle charging detection point, configured to acquire the voltage of the vehicle charging detection point, and determine that the connection of the multi-functional vehicle, the connecting cable, and the charging device is complete when the voltage of the vehicle charging detection point is the target voltage value.

[0010] On the one hand, a charging system is provided, including: a gardening operation vehicle, a connecting cable, and a charging device, wherein the connecting cable is configured to connect the gardening operation vehicle and the charging device;

[0011] The connecting cable is equipped with a detection line, the first end of which is connected to the garden operation vehicle, and the second end of which is connected to the first detection circuit of the charging equipment.

[0012] The first detection circuit of the charging device is configured to detect whether the garden operation vehicle, the connecting cable and the charging device are connected. The first detection circuit includes a vehicle charging access point and a vehicle charging detection point. The vehicle charging access point is configured to be connected to the second end of the detection line.

[0013] The charging device is equipped with a main control unit connected to the vehicle charger detection point. It is configured to acquire the voltage of the vehicle charger detection point and, when the voltage of the vehicle charger detection point is the target voltage value, determine that the garden operation vehicle, the connecting cable, and the charging device are connected.

[0014] On one hand, a charging system is provided, including: a ride-on lawnmower, a connecting cable, and a charging device, wherein the connecting cable is configured to connect the ride-on lawnmower and the charging device;

[0015] The connecting cable is equipped with a detection line, the first end of which is connected to the ride-on lawnmower, and the second end of which is connected to the first detection circuit of the charging device.

[0016] The first detection circuit of the charging device is configured to detect whether the ride-on lawnmower, the connecting cable and the charging device are connected. The first detection circuit includes a vehicle charger access point and a vehicle charger detection point. The vehicle charger access point is configured to be connected to the second end of the detection line.

[0017] The charging device is equipped with a main control unit connected to the vehicle charger detection point. It is configured to acquire the voltage of the vehicle charger detection point and, when the voltage of the vehicle charger detection point is the target voltage value, determine that the ride-on lawnmower, the connecting cable, and the charging device are connected.

[0018] As described above, the present disclosure provides a charging system, the advantage of which is that by detecting the voltage value of the vehicle charging detection point, the charging equipment can know whether the multi-functional vehicle is connected, thereby enabling rapid charging of the multi-functional vehicle. Attached Figure Description

[0019] Figure 1 A schematic diagram of the electrical connection structure of a charging device according to an embodiment of the present disclosure is shown.

[0020] Figure 2 A three-dimensional structural diagram of a charging device according to an embodiment of the present disclosure is shown.

[0021] Figure 3 A schematic diagram of a charging device with two first power battery packs is shown in one embodiment of the present disclosure.

[0022] Figure 4 A schematic diagram showing the structure of a charging device with a second power battery pack 200b in one embodiment of the present disclosure is provided.

[0023] Figure 5 A schematic diagram of the circuit structure of an energy storage device according to an embodiment of the present disclosure is shown.

[0024] Figure 6 A front view of a first side of a charging device according to an embodiment of the present disclosure is shown.

[0025] Figure 7A This is a front view of a first side of an embodiment of the present disclosure, showing how each control switch controls the power supply to / from an output interface area.

[0026] Figure 7B Shown Figure 7A The original design was modified so that each AC output terminal was controlled by a control switch to turn the power supply on or off. This is a front view of the first side.

[0027] Figure 8 A structural schematic diagram of the charging device from a second side view in one embodiment of the present disclosure is shown.

[0028] Figure 9 exhibit Figure 8 A schematic diagram of the structure with the protective cover of the CRRC charger output terminal open.

[0029] Figure 10 This illustration shows a schematic diagram of the charging device as a vehicle charger for a multi-functional vehicle in one embodiment of the present disclosure.

[0030] Figure 11 This illustration shows an application diagram of a charging device that simultaneously charges a multi-functional vehicle and an energy storage device, according to one embodiment of the present disclosure.

[0031] Figure 12 A schematic diagram of the connecting cable is shown in one embodiment of this disclosure.

[0032] Figure 13A A schematic diagram of a plug according to one embodiment of the present disclosure is shown.

[0033] Figure 13B A schematic diagram of a charging gun head is shown in one embodiment of this disclosure.

[0034] Figure 14This illustration shows an application diagram of the communication connection between a charging device and a mobile terminal in one embodiment of the present disclosure.

[0035] Figure 15 A cross-sectional view of a charging device according to an embodiment of the present disclosure is shown.

[0036] Figure 16 A schematic diagram showing the structure of a lever mechanism pulling a charging device in one embodiment of this disclosure is provided.

[0037] Figure 17 This illustration shows a schematic diagram of the charging device being used as an indoor / outdoor mobile power source in one embodiment of the present disclosure.

[0038] Figure 18 This illustration shows an application diagram of a charging device connected to the power grid via a mains socket, according to one embodiment of the present disclosure.

[0039] Figure 19 This illustration shows an application diagram of a charging device connected to an AC power socket and directly outputting power through a bypass line, according to one embodiment of the present disclosure.

[0040] Figure 20 This illustration shows an application diagram of a charging device connected to an AC power socket and directly outputting power through a bypass line to charge an energy storage device, according to one embodiment of the present disclosure.

[0041] Figure 21 This illustration shows an application diagram of a UPS function whereby the charging device continues to output power through the discharge of an energy storage device after the mains power is disconnected.

[0042] Figure 22 A schematic diagram of a charging device according to an embodiment of the present disclosure is shown.

[0043] Figure 23 A schematic diagram of an inverter circuit board according to one embodiment of the present disclosure is shown.

[0044] Figure 24A A schematic diagram of the main control unit being powered on is shown in one embodiment of this disclosure.

[0045] Figure 24B A schematic diagram of the energy storage device being charged is shown in one embodiment of this disclosure.

[0046] Figure 24C A schematic diagram of a multi-functional vehicle charging system is shown in one embodiment of this disclosure.

[0047] Figure 24D A schematic diagram of power supply to an external AC load is shown in one embodiment of this disclosure.

[0048] Figure 24E A schematic diagram of a charging device simultaneously outputting DC and AC power is shown in one embodiment of this disclosure.

[0049] Figure 25 A schematic diagram of a charging device with simultaneous DC and AC input is shown in one embodiment of this disclosure.

[0050] Figure 26 A schematic diagram of the charging system connection circuit is shown in one embodiment of this disclosure.

[0051] Figure 27 A schematic diagram of a multi-functional vehicle according to one embodiment of the present disclosure is shown. Detailed Implementation

[0052] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0053] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0054] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0055] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0056] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0057] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0058] Although the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first part and second part, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0059] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0060] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0061] Currently, users' daily needs, such as multi-functional vehicle charging, battery pack charging, indoor power supply, and outdoor power supply, all require separate supporting equipment, resulting in cumbersome operation and a poor user experience. Moreover, the various supporting equipment also increases costs.

[0062] Therefore, this disclosure provides a charging device that can flexibly realize the functions of each of the above-mentioned supporting devices to solve the problems in the related technologies.

[0063] like Figure 1 The diagram shown illustrates the electrical connection structure of a charging device 100 according to an embodiment of this disclosure.

[0064] The charging device 100 includes a main body 110, which is provided with an energy storage connection part 120, a power input part 130, and a power output part 140.

[0065] The energy storage connection 120 is electrically connected to the energy storage device 200. In some embodiments, the energy storage device 200 includes a power battery pack. The battery type of the power battery pack includes one of ternary lithium batteries, lithium iron phosphate batteries, lithium titanate batteries, and lead-acid batteries. The packaging type of the power battery pack includes pouch and hard pack, and the hard pack packaging includes cylindrical and prismatic shapes, etc.

[0066] The power input section 130 is connected to an external power source 300 to obtain power input. In some embodiments, the power input section 130 may include an AC input terminal 131 and a DC input terminal 132, that is, the external power source 300 may include at least one of an external AC power source and an external DC power source. In some embodiments, the external AC power source 300 may include at least one of mains power, an AC charging station, etc. The external DC power source may include, for example, a solar cell, a DC charging station, a vehicle cigarette lighter socket power source, or other electronic device interfaces such as USB-A, USB-C, Lightning power supply, etc. As an example, the rated input voltage of the charging device 100 may be 120 / 240Vac, 60HZ / 50HZ.

[0067] As an example, the number of AC input terminals 131 and DC input terminals 132 can be one or more. In one example, AC input terminal 131 can support a wide input voltage range of 100V / 110V / 120V to 240V. AC input terminal 131 and DC input terminal 132 can be input individually or in combination. For example, charging device 100 can simultaneously support AC mains input and solar cell input. Of course, the number of each type of input terminal can be set according to requirements.

[0068] In some embodiments, when the external power supply 300 charges the energy storage device 200, the charging device 100 has an input rated power (e.g., an input rated power of not less than 3000W). When the energy storage device 200 supplies power to an external load, the charging device 100 has an output rated power (e.g., an output rated power of not less than 3200W). The input rated power can be less than or equal to the output rated power. Specifically, the charging device 100 can be connected to a 15A current and 240V AC power to obtain an input rated power of 3600W. Furthermore, multiple charging devices 100 connected in parallel can obtain an input rated power of 7200W.

[0069] Specifically, the volume of the charging device 100 can be approximately 51000 cm³, and in this case, the output power ratio of the charging device 100 can be approximately 0.0705 W / cm³. 3 Alternatively, the charging device 100 weighs approximately 23 kg and has a power density of approximately 71 watts per pound.

[0070] In some embodiments, the charging device 100 determines the type of the external power supply 300 based on the input electrical parameters detected by the power input unit 130. For example, the charging device 100 includes a voltage and current detection circuit, which can be used to detect the voltage, current, etc. of the external power supply 300 connected to the power input unit 130, and determine the type of the external power supply 300 according to the specifications of the voltage and current. For example, the external power supply 300 may be AC ​​power or a charging station. In some embodiments, the charging device 100 may also detect the input electrical parameters of the power output unit 140 to determine the output power. For example, the charging device 100 includes a voltage and current detection circuit, which can be used to detect the voltage and current of the external load connected to the power output unit 140, thereby calculating the output power of the power output unit 140.

[0071] The power output section 140 is used for power output to connect to an external load. The power output section 140 includes a first DC output terminal 141 and a first AC output terminal 142. The first DC output terminal 141 may include a vehicle charger output terminal 143, configured to connect to a multi-functional vehicle.

[0072] In some embodiments, a multi-functional vehicle may include a gardening vehicle capable of performing gardening tasks such as trimming, mowing, and spraying. In some embodiments, a multi-functional vehicle may be a cleaning vehicle, such as a snowplow. In some embodiments, a multi-functional vehicle may include an agricultural vehicle, such as a seeder or tractor. In some embodiments, an electric multi-functional vehicle may include a transport vehicle, such as a forklift. In some embodiments, an electric multi-functional vehicle may include an off-road vehicle, such as a Utility Task Vehicle (UTV). In some embodiments, a multi-functional vehicle may require user control. Alternatively, it may be self-propelled / intelligent, capable of planning navigation routes, autonomous movement, and obstacle avoidance.

[0073] The first DC output terminal 141 may also include at least one of the following: USB-A, USB-C, Lightning, cigarette lighter, etc. The first AC output terminal 142 may output at least one of 110V, 120V, 220V, and 240V AC power. The number of each type of output terminal can be set according to requirements. The cigarette lighter output parameters can be 12V / 10A.

[0074] Furthermore, other electronic device interfaces may include USB-A3 / 4 outputs with parameters of 5V (4.8V-5.2V) / 2.1A. Other electronic device interfaces may include USB-A1 / 2 outputs, which comply with QC2.0, QC3.0, and other protocols, with parameters of 5V (4.8V-5.2V) / 3A, 9V (8.8V-9.2V) / 3A, and 12V (11.8V-12.2V) / 2.5A. The maximum output current / overload protection current can be 3A / 5.4A. Other electronic device interfaces may include USB-C1 / 2 outputs, which meet protocols such as PD2.0 and PD3.0, and their parameters can be 5V (5V-5.2V) / 3A, 9V (8.8V-9.2V) / 3A, 12V (11.8V-12.2V) / 3A, 15V (14.8V-15.2V) / 3A, and 20V (19.8V-20.2V) / 5A. The overcurrent protection current value can be 5.4A.

[0075] The charging device 100 may be equipped with a main control unit, which is configured to connect to the energy storage device 200, the power input unit 130 and the power output unit 140, and is configured to control the external power supply 300 to supply power to the energy storage device 200, and to control the energy storage device 200 or the external power supply 300 to switch to supply power to the power output unit 140.

[0076] Specifically, the main control unit may include a microcontroller. Furthermore, the charging device 100 may be equipped with a control circuit board, and the main control unit may be located on the control circuit board.

[0077] The main control unit can be communicatively and / or electrically connected to the energy storage device 200, the power input unit 130, and the power output unit 140, thereby controlling the external power supply 300 to supply power to the energy storage device 200, and controlling the energy storage device 200 or the external power supply 300 to switch to supply power to the power output unit 140. As an example, after the external power supply 300 supplies power to the energy storage device 200, the charging device 100 can be used as a portable power source outdoors. In this case, the main control unit can use the energy storage device 200 to supply power to the power output unit 140. In another example, the external power supply 300 can supply power to the power output unit 140, thereby using the charging device 100 as a power strip.

[0078] At this time, the charging device 100 may also include a power conversion module 150. The power conversion module 150 is disposed on the main body 110 and is electrically connected to the energy storage connection part 120, the power input part 130 and the power output part 140.

[0079] The power conversion module 150 is used to convert the power input unit 130 to the external power supply 300 connected to it to charge the energy storage device 200 (as shown by arrow A), and / or to convert the power supply output of the external power supply 300 or the energy storage device 200 to the power output unit 140 (as shown by arrows B and C).

[0080] Accordingly, in scenarios where the energy storage device 200 is charged using an external power source 300, or where the external power source 300 supplies power to the power output unit 140, the power conversion module 150 can convert the input electrical type of the power input unit 130 into the output electrical type of the energy storage connection unit 120 and the power output unit 140. Alternatively, in scenarios where the energy storage device 200 discharges to form a power output at the power output unit 140, the power conversion module 150 can convert the output electrical type of the energy storage device 200 into the output electrical type of the power output unit 140. Specifically, the power conversion module 150 may have one or more conversion capabilities among AC-DC, DC-AC (also known as inverter), DC-DC, and AC-AC. In other embodiments, the AC-DC converter and DC-AC converter may also be replaced by a bidirectional inverter.

[0081] like Figure 2 The diagram shown is a three-dimensional structural schematic of a charging device 100 according to an embodiment of the present disclosure.

[0082] In this embodiment, the body 110 forms a receiving portion 111. Exemplarily, the receiving portion 111 is formed by a receiving groove with an upper opening in the body 110. The dimensions of the receiving portion 111 are configured to accommodate one or more energy storage devices 200 of different sizes (specifications). The energy storage device 200 can be detachably inserted into / out of the receiving portion 111 from the upper opening.

[0083] The energy storage connection portion 120 can form an electrical connection with the energy storage device 200 entering the receiving portion 111. In a further example, the energy storage connection portion 120 may include a plurality of first connection ports provided in the receiving portion 111. Figure 2 The image is not shown in the image; please refer to it. Figure 5 ), for supplying at least one second connection port on the energy storage device 200 ( Figure 2 The image is not shown in the image; please refer to it. Figure 5 The connection between the first and second connection ports can be a direct plug-in connection. For example, one of the first and second connection ports is a pin, and the other is a socket that mates with the pin. Optionally, a direct plug-in connection enables the energy storage device 200 to be plug-and-play, improving the user experience. Optionally, the second connection port and the first connection port of the energy storage device 200 can be hot-swappable, allowing users to charge and access the device at any time, further improving the user experience.

[0084] In some embodiments, the position of the first connection port in the receiving portion 111 matches the position of the second connection port on the energy storage device 200. For example, if the first connection port is located on the bottom surface of the receiving portion 111, then the second connection port is located on the bottom surface of the energy storage device 200, so that the first and second connection ports can easily make contact as soon as the energy storage device 200 enters the receiving portion 111. Alternatively, the first connection port can be located on the side wall of the receiving portion 111, and the second connection port can be located on the side of the energy storage device 200. After the energy storage device 200 enters the receiving portion 111 to the bottom surface, it moves laterally to make contact between the first and second connection ports. Or, in other embodiments, a direct-insertion structure may not be used; instead, a wire from the charging device 100 can be connected to the energy storage device 200 for charging or discharging.

[0085] Specifically, the housing 111 can be equipped with various energy storage devices 200 of different sizes. The different sizes of energy storage devices 200 correspond to different specifications of power battery packs.

[0086] In some examples, the energy storage device 200 may include a small first battery pack 200a (referred to as a "pack"), which may have a second connection port. The first battery pack 200a can be used to power, for example, handheld power tools / garden tools such as lawnmowers, hair dryers, hedge trimmers, etc., or can be used in sets to power multi-functional vehicles. The first battery pack 200a may be a pouch cell or a hard-pack cell.

[0087] exist Figure 2 The image shows a scenario where a first power battery pack 200a, implemented as a small unit, is placed in the receiving portion 111 of the charging device 100. Exemplarily, the first connection ports can be located at both ends along the length of the receiving portion 111. Thus, Figure 2 The first power battery pack 200a is located at one end of the housing 111.

[0088] In some optional scenario examples, the user may use a power tool / electronic device, which can be powered by a single first power battery pack 200a. When charging is required, the user can remove the first power battery pack 200a from the power tool / electronic device and connect it to the charging device 100 for charging.

[0089] Exemplarily, the charging device 100 has an openable cover 160 at the opening. When closed, the cover 160 keeps the receiving portion 111 sealed. Thus, the energy storage device 200 is protected within the closed receiving portion 111. Optionally, when closed, the cover 160 can form a sealed receiving portion 111 to achieve waterproofing. For example, a seal, such as a sealing strip, can be provided between the periphery of the cover 160 and the contact area between it and the body 110. When the charging device 100 is used in an outdoor environment, the cover 160 effectively protects the energy storage device 200 from debris and water in the outdoor environment, improving product reliability, lifespan, and user experience. Exemplarily, a positioning relationship can be formed between the cover 160 and the body 110. In some embodiments, a snap-fit ​​engagement based on a snap-fit ​​structure (not shown) can be formed between the cover 160 and the body 110, for example, the cover 160 and the body 110 are respectively provided with engaging elastic hooks and buckles. In some other embodiments, the locking structure may have an operating part (such as a button) for accepting user operation to lock or unlock the locking relationship, which can make the positioning relationship between the cover 160 and the body 110 more secure.

[0090] like Figure 3 The diagram shown illustrates the structure of a charging device 100 with two first power battery packs 200a in one embodiment of this disclosure.

[0091] exist Figure 3In this configuration, two first power battery packs 200a are placed into the receiving portion 111 and can be connected and engaged with the first connection ports at both ends of the receiving portion 111. Both first power battery packs 200a can be either pouch batteries, either pouch batteries, or one pouch battery and the other a pouch battery.

[0092] It should be noted that, although Figure 2 and Figure 3 The image only shows applications with one or two small first power battery packs 200a. However, it is understood that by setting the shape / size of the receiving part 111 to match a preset number of first power battery packs 200a and providing a corresponding number of first connection ports, the number of first power battery packs 200a that the receiving part 111 can accommodate can vary and is not fixed. Figure 2 and Figure 3 For restrictions.

[0093] The energy storage device 200 may also include a larger second battery pack 200b (which may be referred to as a "bulk pack"). The dimensions of the housing 111 may be compatible with the dimensions of one (or more) second battery packs 200b. The second battery pack 200b may have multiple second connection ports for electrical connection to a first connection port, thereby improving charging or discharging efficiency and reducing temperature rise and extending lifespan due to the multi-port current sharing. The second battery pack 200b can be used to power multi-functional vehicles, etc. The second battery pack 200b may be a pouch battery or a hard-pack battery.

[0094] like Figure 4 The diagram shown illustrates the structure of a charging device 100 with a second power battery pack 200b in one embodiment of this disclosure.

[0095] exist Figure 4 In this embodiment, a second power battery pack 200b, which is implemented as a larger volume, is placed in the receiving part 111. Both ends of the pack may have multiple second connection ports to form electrical connections with the first connection ports at both ends of the receiving part 111, thereby improving the power supply efficiency of the power battery.

[0096] exist Figures 2-4 This embodiment demonstrates that the charging device 100 can charge energy storage devices 200 of different specifications. Examples of charging scenarios for energy storage devices 200 of different specifications are illustrated below.

[0097] In one scenario, charging device 100 simultaneously charges two small-pack batteries. For example, the maximum output power of charging device 100 is between 3000W and 3400W. Assuming the pouch battery is rated at 8 amp-hours (Ah), 8 amp-hours means that if discharged using a current of 1 amp, the battery can discharge continuously for 8 hours. Therefore, Ah corresponds to the rated capacity. Converted to amps, 8 amp-hours corresponds to a capacity of 8000 milliamperes. If charging device 100 charges two pouch batteries... Figure 3 Simultaneous charging is achieved using this method. At a maximum output power of 3000W to 3400W, it can output a charging current of 75A to 85A when the charging voltage is 40V. If the maximum charging current of a single pouch battery is 30A, then the charging device 100 can simultaneously perform fast charging of two pouch batteries at the maximum charging current.

[0098] It is understandable that if the need to charge two pouch batteries simultaneously can be met, then the scenario of charging a single pouch battery can also be satisfied.

[0099] In another scenario, charging device 100 simultaneously charges two small-pack hard-pack batteries. The hard-pack batteries may have specifications such as 2Ah / 5Ah / 7.5Ah. The charging current limit for a 2Ah hard-pack battery is 6A-8A, for a 5Ah hard-pack battery it's 12A, and for a 7.5Ah hard-pack battery it's 18A. Based on the charging device 100's maximum output power of 3000W-3400W, it can adequately meet the fast charging needs of two 7.5Ah hard-pack batteries simultaneously charging at a maximum current of 18A. Therefore, it can also meet the fast charging requirements of two 2Ah / 5Ah hard-pack batteries.

[0100] In another scenario, charging device 100 simultaneously charges a hard-pack battery and a soft-pack battery. Based on the examples above, if the hard-pack battery has a charging current limit of 8A and the soft-pack battery has a charging current limit of 30A, then charging device 100 only needs to output a charging current of 38A or higher to meet the fast charging requirements for both the hard-pack and soft-pack batteries. Both of the previous scenario examples can adequately meet the fast charging needs in this scenario.

[0101] In another scenario, charging device 100 charges a large-sized battery pack. The charging current limit of the battery pack is, for example, 40A. As an example, charging device 100 can provide 1C40A charging to the battery pack. Here, C represents the charging rate, which is calculated as charging current (A) / battery rated capacity (Ah). A higher charging rate indicates a faster battery charging and discharging speed.

[0102] Please refer to this again. Figure 2For example, handles 112 are provided on opposite sides of the top of the main body 110, allowing users to easily lift the charging device 100 by gripping the handles 112 with both hands. By providing handles on opposite sides of the main body 110, it is easier to apply force evenly to the charging device 100, making it easier to lift. In some embodiments, if the charging device 100 is relatively lightweight, handles 112 can be provided on only one side, allowing the user to lift it with one hand. In still other embodiments, handles 112 can also be provided on the surface of the cover 160, with one handle per side. When the cover 160 is closed, the entire charging device 100 resembles a suitcase, making it easy for the user to lift with one hand.

[0103] To facilitate users in applying force evenly when lifting the charging device 100, the charging device 100 can be arranged with counterweights to ensure that its center of gravity is located as centrally as possible, preferably in the middle position. For example, the power conversion module 150 and circuit boards can be arranged in the middle of the charging device 100, or a counterweight block can be fixedly installed in the middle.

[0104] The energy storage device 200 also includes a battery pack 220, a switching unit 230, a power supply circuit 240, and an energy storage management and control system 250. For example... Figure 5 The diagram shown illustrates the connection between the energy storage device 200 and the charging device 100 in one embodiment of this disclosure.

[0105] exist Figure 5 In this embodiment, the energy storage device 200 can be implemented as a large package, including two second connection ports 210. The energy storage connection part 120 includes two first connection ports 121. The first connection ports 121 and the second connection ports 210 are electrically connected in a one-to-one correspondence. As an example, each first connection port 121 may include a first charging positive terminal (C+), a first communication pin (COM), and a charging negative terminal (P-). The second connection port 210 includes: a second charging positive terminal (C+) connected to the first charging positive terminal, a battery positive terminal (P+) connected to the second charging positive terminal, a second communication pin (COM) connected to the first communication pin, and a battery pack negative terminal (P-) connected to the charging negative terminal. It is understood that in other embodiments, the energy storage device 200 may also be implemented as a small package, with only one second connection port 210.

[0106] Charging the battery pack 220 via dual interfaces can improve charging or discharging efficiency and reduce port temperature rise by shunting current through the two second connection ports 210. For example, the current flowing through the two second connection ports 210 can be substantially the same, or it can be adjusted and distributed as needed.

[0107] The energy storage management and control system 250 may include an energy storage management and control unit 251 and a front-end unit 252. As an example, the energy storage device 200 may also include a sensor group for detecting the state of the energy storage device 200, which can be used to detect data such as voltage, current, temperature, and impedance of the battery pack 220 or other devices.

[0108] Exemplarily, the second connection port 210 is connected to one end of the switching unit 230. The other end of the switching unit 230 is connected to the positive terminal of the battery pack 220 and, via the power supply circuit 240, to power the energy storage management control unit 251. As an example, the switching unit 230 may include two sets of transistors, one set of transistors connected in parallel and labeled as DSG transistors, where DSG stands for discharge control. The other set of transistors connected in parallel and labeled as CHG transistors, where CHG stands for charge control. The DSG and CHG transistors may be NMOS transistors, with each pair connected to a common drain. The DSG and CHG transistors are turned on to conduct the charging or discharging circuit of the battery pack 220.

[0109] For example, the power supply circuit 240 may include a voltage conversion circuit and a connected voltage regulator circuit, used to convert the power supply from the battery pack 220 into an output voltage suitable for the energy storage management control unit 251. The voltage regulator circuit can regulate the output voltage and output it to the energy storage management control unit 251. For example, if the output voltage of the battery pack 220 is DC and the power supply voltage of the energy storage management control unit 251 is DC, then the voltage conversion circuit can be implemented as a DC-DC circuit. The voltage regulator circuit can be implemented as a low-dropout linear regulator (LDO).

[0110] For example, the energy storage management control unit 251 may include a power supply terminal 2511, a first communication terminal 2512, a second communication terminal 2513, a third communication terminal 2514, a voltage detection terminal 2515, a battery pack temperature detection terminal 2516, a transistor temperature detection terminal 2517, a real-time clock terminal 2518, and a wireless communication terminal 2519, etc. Each "terminal" may include one or more pins, and the number and type of "terminals" can vary as needed and are not limited thereto. In some embodiments, the energy storage management control unit 251 may include an MCU, a SoC, an FPGA, or other processing chips.

[0111] The power supply terminal 2511 is connected to the power supply circuit 240 to obtain the power supply voltage.

[0112] The first communication terminal 2512 provides a communication pin connection that cooperates with the front-end unit 252. In some embodiments, the first communication terminal 2512 may be implemented to follow a communication protocol such as SPI or I2C.

[0113] The second communication terminal 2513 and the third communication terminal 2514 can communicate with the second communication pins (COM) in the two second connection ports 210 to transmit energy storage status information to the charging device 100, including but not limited to charging or discharging voltage (such as the output voltage of a single cell in the battery pack 220, the total output voltage of the battery pack 220), charging or discharging current, temperature (such as the temperature of the battery pack 220, the temperature of the transistor), and battery status information (such as charge, charging / discharging status, health status, etc.). Moreover, through the communication connections of the second communication terminal 2513 and the third communication terminal 2514 with the second communication pins, multiple communication channels can be formed between the charging device 100 and the energy storage device 200. Thus, the charging device 100 or the energy storage device 200 can determine whether the communication status of each channel is normal based on the multiple communication channels, and the multiple communication channels can serve as backups for each other, ensuring the reliability of the communication connection.

[0114] The voltage detection terminal 2515 may include one or more voltage detection pins, which can be used to obtain information such as the total voltage of the battery pack 220 and the voltage of the positive terminal of the battery by connecting to a voltage detection circuit.

[0115] The battery pack temperature detection terminal 2516 is used to obtain a battery pack 220 temperature signal representing the temperature of the battery pack 220. The battery pack temperature detection terminal 2516 can be connected to a temperature sensor that acquires the temperature of the battery pack 220 to receive the battery pack 220 temperature signal transmitted by the temperature sensor.

[0116] The transistor temperature detection terminal 2517 is used to obtain a transistor temperature signal representing the temperature of the transistors in the switching unit 230, such as DSG transistors and CHG transistors. The transistor temperature detection terminal 2517 can be connected to a temperature sensor that acquires the transistor temperature to receive the transistor temperature signal output by the temperature sensor.

[0117] The Real-Time Clock Terminal 2518 (RTC) can obtain a real-time clock based on an external clock through frequency division, and use the real-time clock to accurately perform task scheduling and time management.

[0118] The wireless communication terminal 2519 can be connected to a wireless communication circuit to establish a wireless communication connection with an external device. As an example, the wireless communication circuit may include one or more of Bluetooth, WiFi, mobile communication circuits (3G / 4G / 5G modules), and Internet of Things (IoT) communication circuits (NB-IoT, Zigbee, or LoRa, etc.). The energy storage management control unit 251 can also connect wirelessly to...

[0119] The front-end unit 252 includes a discharge control terminal 2521, a charging control terminal 2522, a second voltage detection terminal 2523, and a current acquisition terminal 2524, etc. In some embodiments, the front-end unit 252 may include an analog front-end circuit (AFE).

[0120] The discharge control terminal 2521 is connected to each DSG transistor to control the on / off state of the DSG transistor. Specifically, the discharge control terminal 2521 can be connected to the gate of each DSG transistor implemented by a MOS transistor. The charge control terminal 2522 is connected to each CHG transistor to control the on / off state of the CHG transistor. Specifically, the discharge control terminal 2521 can be connected to the gate of each CHG transistor implemented by a MOS transistor.

[0121] The second voltage detection terminal 2523 may include multiple voltage detection pins 25231, which can be connected to and detect the voltage of each individual cell included in the battery pack 220.

[0122] The current acquisition terminal 2524 is connected to the negative terminal of the battery pack to acquire the current of the battery pack 220. In some embodiments, the current acquisition terminal 2524 can be connected to the negative terminal of the battery pack via a current sampling circuit to acquire the current. In a further example, the current sampling circuit may include a current sampling resistor.

[0123] In some embodiments, the front-end unit 252 can send the collected sensor data to the energy storage management control unit 251 via a communication connection. The energy storage management control unit 251 can collect the received various sensor data to form energy storage status information and send it to the charging device 100 connected to the communication connection.

[0124] In some embodiments, the front-end unit 252 can determine whether an overcharge or over-discharge has occurred based on the voltage of a single battery cell detected by the second voltage detection terminal 2523, and then control the corresponding overcharge or over-discharge protection through the discharge control terminal 2521 or the charging control terminal 2522. For example, when the voltage of a single battery cell is detected to be lower than an over-discharge threshold, the front-end unit 252 can turn off each DSG transistor through the discharge control terminal 2521 to stop discharging. Alternatively, when the voltage of a single battery cell is detected to exceed an overcharge threshold, the front-end unit 252 can turn off each CHG transistor through the charging control terminal 2522 to stop charging.

[0125] In some embodiments, the energy storage management control unit 251 may have switchable operating and sleep states. It can enter a sleep state when the energy storage device 200 is idle and can be woken up by an external signal. For example, when in sleep mode, the energy storage management control unit 251 can be woken up by an external signal generated when a user operates the operating unit (such as an operation key) on the energy storage device 200. Alternatively, the energy storage management control unit 251 can be woken up by an external signal sent by the charging device 100, such as a signal received during a handshake. Alternatively, the energy storage management control unit 251 can also be woken up by a wake-up signal from the front-end unit 252. Optionally, when the energy storage device 200 is initially powered on, the energy storage management control unit 251 can send a wake-up signal to the front-end unit 252 to activate the front-end unit 252, after which the front-end unit 252 can remain in the operating state.

[0126] In some embodiments, the charging device 100 may further include a main control unit 1601, which can be used to control the charging or discharging of the energy storage device 200 by the charging device 100. See also... Figure 5 For example, the main control unit 1601 can establish a communication connection with the energy storage management and control system 250 through a communication line, and can obtain the energy storage status information of the energy storage device 200 (i.e., voltage, current, power, temperature, etc.), and can determine with the energy storage management and control system 250 whether to perform charging or discharging. For example, if the charging voltage / current converted from the external power supply does not match the energy storage device 200 when charging is required, charging will stop in case of overcharging, and discharging to the energy storage device 200 will stop in case of over-discharging. Countermeasures can also be taken in case of overload or excessive temperature, and disconnection from the energy storage device 200 may be necessary, which can effectively protect the energy storage device 200 and its own circuitry, and enhance safety. In some embodiments, the main control unit 1601 can be implemented as a control circuit board, equipped with an MCU, SoC, FPGA or other processor chip and other circuit modules.

[0127] exist Figures 2-4 The image also shows a first side surface 113 of the main body 110 (the example shows the front side). Please refer to this image as well. Figure 6 As shown, the various output terminals of the power output section 140 can be arranged in different areas on the first side 113.

[0128] exist Figure 6 The image shows three areas arranged from left to right on the first side 113, defined as the first output interface area 1131, the second output interface area 1132, and the third output interface area 1133. In the first output interface area 1131, a cigarette lighter output terminal can be installed, which outputs a DC voltage. Figure 6The image shows three cigarette lighter output terminals, including one 12V / 10A output terminal 141a and two 12V / 3A output terminals 141b. In some embodiments, the 12V / 10A cigarette lighter output terminal 141a can be used to connect to in-vehicle devices, such as car refrigerators, air pumps (for inflatable beds, inflatable tent mats, inflatable surfboards, etc.). Optionally, the 12V / 10A cigarette lighter output terminal 141a can be equipped with a dust cover 1411, which may be made of, for example, rubber. The 12V / 3A cigarette lighter output terminal 141b, also known as a DC5521 interface, can be used to power devices such as routers, light strips, and monitor power supplies. The output parameter of the DC5521 interface can be 12V / 3A.

[0129] In the second output interface area 1132, one or more first AC output terminals 142 can be provided. Optionally, four first AC output terminals 142 are shown in the figure. Each first AC output terminal 142 can have the same output voltage, or different output voltages, or some first AC output terminals 142 can have one output voltage and others have another output voltage. For example, the output voltage of each first AC output terminal 142 includes one of AC 110V, 120V, 220V, 240V, 380V, etc., which can be set according to the power requirements of the application scenario. In some examples, each first AC output terminal 142 has the same output voltage, such as 220V, to meet the power specifications of the commonly used 220V mains power in China. In other examples, based on the power supply requirements of 120V or 240V mains electricity in the United States, the first AC output terminal 142 can be entirely used at 120V, or part of the first AC output terminal 142 can be used at 120V and the other part at 240V. Considering that the power demand for 240V is lower than that for 120V, the number of first AC output terminals 142 at 120V can be greater than the number at 240V. For example, in a four-terminal AC output terminal 142 configuration, three terminals are at 120V and one is at 240V. The first AC output terminal 142 can be used in general electrical appliances such as refrigerators, microwave ovens, desktop computers, common power tools, and hair dryers.

[0130] Taking the 120V first AC output terminal 142 as an example, if the output current is 15A, the output power of the 120V first AC output terminal 142 can reach 1800W. If the output current is limited to a value greater than 15A, the output power of the 120V first AC output terminal 142 can reach more than 1800W, which can well meet the requirements of low-voltage fast charging.

[0131] In the third output interface area 1133, one or more low-voltage first DC output terminals can be configured. For example, Figure 6 The example shows multiple USB ports, such as multiple USB-A and USB-C ports. Optionally, some USB-A ports can be standard USB-A ports with an output specification of 5V / 2A to 3A, which can power small electrical devices such as desk lamps and small fans; the example shows two such ports. Other USB-A ports can be fast charging ports, such as 18W / 30W USB fast charging ports, marked with "QC" to indicate support for the QC fast charging protocol, which can be used to power mobile terminals such as mobile phones, tablets, and laptops; the example shows two such ports. Additionally, there are two USB-C ports, one supporting 100W fast charging output and the other, for example, supporting 18W fast charging output, which can be used to power mobile terminals such as mobile phones, tablets, and laptops.

[0132] It is understood that the various output terminal types, specifications, quantities, and locations of the power output section 140 described above are merely examples and can be varied according to actual needs. For instance, the cigarette lighter output terminal can be located in the third output interface area 1133, and the low-voltage DC terminal can be located in the first output interface area 1131, allowing for interchangeability. Alternatively, the number of AC output terminals can be reduced to three. Or, a lighting interface can be added to the third output interface area 1133.

[0133] Please see Figure 6 An output control switch 1134 can be installed in the first side 113, which can be used to control the power supply of all output interfaces in the first side 113 by accepting user operation.

[0134] In another alternative example, the power supply to each type of output interface can be controlled by a separate control switch. Figure 7A In the first output interface area 1131, each output terminal 141a, 141b is controlled by at least one first control switch 1135 to control the on / off state of its power supply. Each output interface 142 in the second output interface area 1132 is controlled by at least one second control switch 1136 to control the on / off state of its power supply. Each output interface in the third output interface area 1133 is controlled by at least one third control switch 1137 to control the on / off state of its power supply.

[0135] For example, in Figure 7B In this configuration, each first AC output terminal 142 can be configured with a second control switch 1136'. Specifically, the second output interface area 1132 contains four first AC output terminals 142, each corresponding to a second control switch 1136', and each second control switch 1136' is used to control the on / off state of one of the first AC output terminals 142.

[0136] In alternative embodiments, for example Figure 6 As shown, a light strip 191, such as an LED or other type of light bar or LED bead, can also be arranged in the first side 113. For example, the light strip 191 is arranged above each output interface. In a dark environment, the light strip 191 can be lit to facilitate user connection to the output interface below. Further optionally, a brightness operation section 1911 for user adjustment of the light strip 191's brightness can be provided corresponding to the first side 113. This section accepts user operation to adjust the brightness of the light strip 191 to adapt to lighting needs in scenes with different brightness levels. The power of the light strip 191 can be 3W.

[0137] In an optional embodiment, a display screen 192 may also be arranged on the first side 113. The display screen 192 may include LEDs or LCDs, etc. The display screen 192 can provide a graphical user interface (GUI) for displaying the operating status of the charging device 100. As an example, the display screen 192 may be used to display at least one of the following information on the charging device 100: input and / or output object information, input and / or output power information, power information, fault and / or prompt information, communication status information, heat dissipation module information, time information, etc.

[0138] Input and / or output object information may include, for example, the input object of the power input unit 130 (at least one of vehicle cigarette lighter interface power supply, solar cell, and AC power input), the output object of the power output unit 140 (cigarette lighter, multi-functional vehicle, energy storage device 200), and the interface status of the power output unit 140 (such as the status of output interfaces such as USB-A, USB-C, AC, DC, etc.).

[0139] Input and / or output power information may also include one or more of the following: current input power, input power limit, current output power, and output power limit. For example, power information includes the remaining power of the energy storage device 200 connected to the charging device 100. For example, fault and / or prompt information includes one or more of the following: input fault, output fault, high ambient temperature prompt, low ambient temperature prompt, output power overload warning, short circuit, overheating, and other faults. In some embodiments, the charging device 100 may trigger an overload prompt on a display component in response to an output power overload, prompting the user to take action, such as shutting off power to one load. If the overload persists, the charging device 100 may cut off power to newly added loads after a preset overload tolerance time has been reached. For example, if a hairdryer is connected last among four AC output terminals, and the hairdryer's operation causes an overload, one output of the hairdryer can be shut off. Optionally, if shutting off one load still results in an overload, the previously connected load can be shut off according to its connection time, and so on, until no overload occurs. As an example, communication status information is about the wired and / or wireless communication components set up by the charging device, including, for example, Bluetooth, Wi-Fi, or other communication connection status.

[0140] The charging device 100 may be equipped with a fan to dissipate heat from the energy storage device 200. The heat dissipation module information may include the operating status information of one or more cooling fans.

[0141] Time information may include one or more of the following: usage time, charging time, clock information, etc. For example, time information may include the estimated discharge duration of the energy storage device 200. Specifically, the main control unit 1601 of the charging device 100 can obtain the current remaining capacity (Ah) of the energy storage device 200, and then obtain the current current value (I). The estimated discharge duration can then be obtained by dividing the remaining capacity by the current current value.

[0142] Furthermore, the charging device 100 may also include an interactive component. The interactive component, located on the main body 110, is used to receive operations to adjust / distribute the input / output power of the charging device 100. In one example, the interactive component may be implemented as a physical operation key / button, etc. In another example, the interactive component may be implemented on the same touchscreen as the display component, and the interactive component may be implemented as a virtual operation key / button displayed on the touchscreen.

[0143] Specifically, users can adjust or distribute the power of the charging device 100 at different output interfaces of the power output section 140 by operating the interactive components, such as adjusting the power distribution between multiple DC output terminals, or increasing or decreasing the output power of the power output section 140.

[0144] like Figure 8The diagram shown illustrates the structure of the second side 114 of the charging device 100 according to an embodiment of this disclosure. The second side 114 is disposed opposite to the first side 113.

[0145] For example, the second side 114 has an input interface area 1141 for providing each input interface of the power input section 130. The figure exemplarily shows that the power input section 130 includes an AC input terminal 131.

[0146] For example, a vehicle charging interface region 1142 for charging a multi-functional vehicle output terminal 143 can also be formed in the second side 114. Optionally, the input interface region 1141 and the vehicle charging interface region 1142 can be arranged at intervals along the length direction of the body 110.

[0147] Optionally, the car charger output terminal 143 may be disposed within a receiving groove formed in the car charger interface area 1142, and may be protected by an openable and closable protective cover 1431. See also... Figure 9 As shown, the protective cover 1431 can be rotated open and closed, with one end hinged to the body 110. Figure 8 In the image, the protective cover 1431 is in the closed state, and the car charger output terminal 143 cannot be connected to a multi-functional vehicle charger. Figure 9 In the diagram, the protective cover 1431 is shown in the open state, and the car charger output terminal 143 can be connected to a multi-functional vehicle charger. The protective cover 1431 can open laterally to one side as shown in the example, or open to the other side, or open upwards or downwards, or it can be rotated open parallel to the side 114.

[0148] like Figure 10 and Figure 11 As shown, the AC input terminal 131 of the charging device 100 can be connected to an external AC power source (such as a charging station, mains power, etc.). The example in the figure is a mains power socket 400. The vehicle charging output terminal 143 is connected to the charging interface 510 on the multi-functional vehicle 500 via a connecting cable 600 to charge the multi-functional vehicle 500.

[0149] As an example, the location of the charging port 510 on the multi-functional vehicle 500 can be related to the location of the power battery pack on the vehicle 500. For example, if the power battery is located at the rear of the vehicle 500, then the charging port 510 can be located at the rear. For instance, the charging port 510 of the multi-functional vehicle 500 shown in the figure is located at the rear. Alternatively, in other embodiments, if the power battery pack is located at the front of the vehicle, then the charging port can also be located at the front of the vehicle. In other embodiments, the charging port can also be located on the side of the vehicle, and is not limited to the figures shown.

[0150] In some embodiments, the power battery pack used in the multi-functional vehicle 500 may include multiple large packs, a combination of one large pack and multiple small packs, or a combination of multiple large packs and multiple small packs. Referring to the example scenario above, the charging device 100 can charge large and small packs of different sizes, whether packaged in soft or hard packs.

[0151] Please see Figure 12 , Figure 12 The diagram shows a connecting cable 600. One end of the connecting cable 600 can be a plug 610, configured to connect to the vehicle charging output port 143 of the charging device 100. The other end of the connecting cable 600 can be a charging head 620, configured to connect to the charging interface 620 of the multi-functional vehicle 500.

[0152] Please see Figure 13A , Figure 13A The plug 610 is shown. Plug 610 includes a first charging probe 611 and a first communication probe 612. See also... Figure 13B The charging head 620 includes a second charging probe 621 and a second communication probe 622. It is understood that the plug 610 and the charging head 620 are not limited to those shown in the accompanying drawings. The specific connection methods between the charging device 100, the connecting cable 600, and the multi-functional vehicle 500 are described in detail later in this specification.

[0153] like Figure 14 As shown, the charging device 100 can establish a communication relationship with external devices. For example, the charging device 100 can communicate with a mobile terminal 700 (such as a smartphone, tablet, or laptop). The mobile terminal 700 can run an application (APP). Through the communication connection with the charging device 100, the mobile terminal 700 can collect charging and discharging status information and energy storage status information from the charging device 100 and present them to the user, or control the charging or discharging functions of the charging device 100.

[0154] For example, in some optional scenario examples, the charging device 100 sends its charging and discharging status information to an external device for display. For instance, the charging and discharging status information may include power information of each input and / or output interface of the charging device 100, and / or total input / output power information, which is sent to the mobile terminal 700. A graphical user interface can be formed on the mobile terminal 700, displaying the power information and / or total power information, so that the user understands the current operating status of the charging device 100 and can determine the charging or discharging mode / power control of the charging device 100 accordingly.

[0155] In some optional scenario examples, the charging device 100 can also send the energy storage status information transmitted from the connected energy storage device 200 to the mobile terminal 700 for display. The user can view the energy storage status information in the graphical user interface of the mobile terminal 700's APP. By viewing the energy storage status information, the user can understand the operating status of the energy storage device 200 and decide on the control of charging or discharging the energy storage device 200 accordingly.

[0156] In other scenario examples, the charging device 100 can be controlled by the external device 700 to select the charging or discharging mode and / or the order in which the charging or discharging objects are selected. For example, the user can time the charging and discharging actions of the charging device 100 based on one or more combinations of factors, such as the operating status of the charging device 100 indicated by the charging / discharging status information, the operating status of the energy storage device 200 indicated by the energy storage status information, and their own needs, or select the priority of the charging or power supply objects. For example, a user finds that their tablet is out of power in the morning and needs to use it in the evening, but the user is about to leave. If the tablet is left at home to charge, the user will worry about the potential danger of charging since no one is home at the moment. Therefore, the user sets the charging start time after a predetermined time when a family member will return home or at a preset time. This satisfies the user's need for the tablet to be charged when they return home, ensures the safety of charging when someone is home, and avoids troubling family members to charge the tablet, achieving multiple benefits and providing a good user experience. For example, a user might use charging device 100 to charge both a multi-functional vehicle and an energy storage device 200 simultaneously. The energy storage device 200, once charged, might be used with power tools, which the user needs for work. The multi-functional vehicle, once fully charged, is not intended for immediate use. Therefore, for the user, charging the energy storage device 200 takes precedence over charging the multi-functional vehicle. Thus, the user can configure charging device 100 to charge the energy storage device 200 first, and then charge the multi-functional vehicle only after the energy storage device 200 is fully charged or has reached a preset threshold.

[0157] For example, a user can send a command to the charging device 100 via an app on the mobile terminal 700 to select whether to charge or discharge the energy storage device 200, thereby controlling the charging device 100 to perform the charging or discharging according to the command. Alternatively, a user can use the app on the mobile terminal 700 to select whether to stop power supply to the corresponding output interface of a power bank currently being charged, or to stop power supply to the corresponding output interface of an appliance or socket that does not require power.

[0158] In some further scenario examples, the charging device 100 has its input / output power regulated or allocated by an external device. For instance, a user can adjust the power distribution between two energy storage devices 200 by operating an app on a mobile terminal 700, such as lowering the charging power of one device and increasing the charging power of the other to prioritize its full charge. In one scenario, the two energy storage devices 200 need to be used with different power tools. Depending on the priority of the power tools, for example, the power tool used first has a higher priority, and the energy storage device 200 of the higher-priority power tool can be allocated a higher charging power within its specification limitations, while the energy storage device 200 of the lower-priority power tool can have its charging power lowered.

[0159] For example, a user can use a mobile app (APP) to select and distribute / adjust the output power of two electrical appliances. In one scenario, the user uses two AC...

[0160] In the above scenario examples, optionally, in order to prevent adverse consequences such as overcharging, over-discharging, overload or high temperature caused by improper user operation, the charging device 100 can pre-design the parameter threshold design judgment conditions for abnormalities / faults such as overcharging, over-discharging, overload or high temperature, and use the judgment conditions to determine whether the user operation command is allowed to be executed. If it is not feasible, the user's adjustment can be rejected.

[0161] In the above scenario examples, users need control permissions over the charging device 100. If the user's identity is untrustworthy, it will cause security issues. Therefore, in some embodiments, the charging device 100 can authenticate the user's identity through communication with the mobile terminal 700. Only after successful authentication will the control permissions corresponding to the user's identity be granted. In some embodiments, different types of users can have different control permissions. For example, different types of users can be adults and minors, hosts and guests, or individuals, spouses, parents, children, close relatives, and distant relatives. Adults can have higher control permissions than minors, hosts can have higher control permissions than guests, and the control permissions for individuals, spouses, parents, children, close relatives, and distant relatives can decrease sequentially and can be partially the same, such as the control permissions for individuals and spouses.

[0162] like Figure 15 The diagram shown is a cross-sectional view of a charging device 100 according to an embodiment of the present disclosure.

[0163] The main body 110 may have a receiving portion 111 for accommodating an energy storage device and a receiving space 117 for accommodating a power conversion module 150. As an example, the receiving portion 111 has an open top and its bottom is located above the receiving space 117. Optionally, the bottom of the receiving portion 111 and the receiving space 117 may be separated by a partition, so that the energy storage device placed downwards into the receiving portion 111 will not enter the receiving space 117. The receiving space 117 can also be used to house control components, such as a control circuit board.

[0164] Optionally, in Figure 15 The central display housing 111 is equipped with a first heat dissipation module 800 connected to the outside. The first heat dissipation module 800 may include multiple fans 801. See also... Figure 2 It is understood that the main body 110 has ventilation sections 118 on its two end sidewalls along its length, and the receiving part 111 can communicate with the outside through the ventilation sections 118. Each fan 801 can be positioned corresponding to one of the ventilation sections 118, and can be used to exhaust air outward through the ventilation section 118 to dissipate heat from the energy storage device. In another embodiment, there may be a pair of fans 801, each positioned on one side corresponding to one of the two ventilation sections 118.

[0165] exist Figure 8 As illustrated, the ventilation section 118 may include a plurality of spaced-apart vents 1181, which reduces the entry of dust compared to a completely open structure. Since the charging device 100 may be used outdoors, optionally, the body 110 may also form a grille structure 119 on the outside of the ventilation section 118 to prevent foreign objects from entering.

[0166] Optionally, the accommodating space 117 is provided with a second heat dissipation module 900 communicating with the outside. Further optionally, the second heat dissipation module 900 may include a pair of fans 901 and 902. The height of the ventilation section 118 may at least partially cover the communication range of the ports of the accommodating section 111 and the accommodating space 117. The fans 901 and 902 may be respectively disposed on both sides of the body 110 corresponding to the positions of the ventilation section 118.

[0167] In some embodiments, the power required for the operation of the first heat dissipation module 800 and the second heat dissipation module 900 can be provided by the energy storage device 200 or by an external power source connected to the power input unit 130.

[0168] Figure 8 The image also exemplarily shows a rolling mechanism 115, including one or more rollers 1151, which can be provided at the bottom of the body 110 to facilitate the movement of the charging device 100. Figure 8The image shows a pair of rollers 1151 positioned near the second side 114. The main body 110 also includes a pull rod mechanism 116, the upper end of which is retractable and can be held by the user to pull the charging device 100. In conjunction with the rolling mechanism 115, the charging device 100 can be easily moved to its destination by the user.

[0169] You can refer to them together. Figure 16 The diagram shown illustrates the structure of a lever mechanism 116 pulling a charging device 100 in one embodiment of this disclosure.

[0170] The lever mechanism 116 and the rolling mechanism 115 can be arranged on the same side, that is, the lever mechanism 116 and the rolling mechanism 115 are arranged close to the second side 114. When the lever is pulled, the charging device 100 tilts towards the side where the lever is located, so that the bottom end of the charging device 100 away from the rolling mechanism 115 is lifted, while the rolling mechanism 115 contacts the ground. The friction is small, and the user can pull the lever mechanism 116 to easily drive the charging device 100 to move.

[0171] Optionally, the bottom surface of the body 110 may also be provided with a foot pad structure 1100 for supporting the body at a certain height. The foot pad structure 1100 may include a plurality of foot pad portions 1101 evenly distributed on the bottom surface. The structures of the plurality of foot pad portions 1101 may have the same height. For example, the extension height of the foot pad structure 1100 outward from the bottom surface of the body 110 is greater than the extension height of the rolling mechanism 115, that is, the extension height of the foot pad portion 1101 is greater than the extension height of the roller 1151. It can be understood that when the charging device 100 is... Figure 16 The tilted state is restored to the upright state, and the foot pad structure 1101 touches the ground. Since the extension height of the foot pad structure 1101 is greater than that of the rolling mechanism 115, the rolling mechanism 115 can be suspended, contact the ground without force, or contact the ground with a small force. That is, the rolling mechanism 115 no longer needs to be the main support point for the ground, thereby effectively protecting the rolling mechanism 115 from damage and extending the service life of the rolling mechanism 115.

[0172] For example Figure 8 As shown, by way of example, the lever mechanism 116 can be disposed between the input interface area 1141 and the car charger interface area 1142 on the side to fill the space between the two areas, making the overall structure more compact.

[0173] For example, the lever mechanism 116 may be a frame structure, forming a hollow section. That is, the hollow section between a pair of parallel rods in the lever mechanism 116. To utilize the space of the hollow section, an openable and closable storage structure 1000 may be provided on the side of the lever mechanism 116 at a position corresponding to the hollow section. As an example, the storage structure 1000 may include: a mating storage box 1001 and a storage cover 1002.

[0174] The storage box 1001 has a storage space and an external opening. In some embodiments, the storage box 1001 may be formed as part of the body 110, or the storage box 1001 may be mounted and fixed on the body 110.

[0175] The storage lid 1002 covers the outer opening of the storage box 1001 and is closable. When the storage lid 1002 is opened, the internal storage space is exposed. The storage space can be used to place the power cord of the charging device 100, such as a 120V or 240V AC power cord, or it can be used to place other items, without limitation. Exemplarily, one end (lower end) of the storage lid 1002 can be hinged to the storage box 1001, and the other end (upper end) can be opened. Exemplarily, the openable end of the storage lid 1002 can form a locking structure with the storage box 1001. In some embodiments, a push-type opening and closing locking mechanism can be provided between the openable end of the storage lid 1002 and the storage box 1001, that is, when the user presses one end of the storage lid 1002, it opens; when pressed again, one end of the storage lid 1002 locks with the storage box 1001. Since the structure of the push-to-lock mechanism is quite common, it will not be described in detail here.

[0176] It should be noted that the implementation of the rolling mechanism 115 and the pull rod mechanism 116 in the above figures is only an example and can be varied in other embodiments. For example, the rolling mechanism 115 may include multiple rollers 1151 located at the four corners of the bottom of the charging device 100, and the pull rod mechanism 116 may be movably disposed on the body 110, for example, with the bottom hinged and the upper end movable. Thus, when the user pulls the upper end of the pull rod mechanism 116, the upper end will rotate outward away from the charging device 100, so the charging device 100 will not be tilted. Under the movement of the multiple rollers 1151 at the four corners, it can also be easily pulled by the user. Since the charging device 100 will not be tilted, it can also avoid the shaking or movement of some internal components that may occur due to loosening.

[0177] In some embodiments, the charging device 100 can be installed in desktop, wall-mounted, or embedded configurations. For wall-mounted installations, the charging device 100 can have a hanging assembly on its body 110. In some examples, the hanging assembly may include a hook mechanism. In some examples, the hanging assembly may include a hanging bracket, such as a bracket with retractable ends that abut against two opposing vertical surfaces to suspend itself, or a bracket that is mounted or attached to a specific wall structure; the implementation is not limited.

[0178] The above is Figure 2 , Figure 3 , Figure 4 , Figure 10 , Figure 11Examples show some application scenarios of using charging equipment 100 to charge energy storage devices 200 of different specifications and vehicles. Other application scenarios will be illustrated below.

[0179] Furthermore, in outdoor scenarios, such as camping and picnicking, users may need to play music at high volumes or eat hot pot, etc. Common power banks for mobile phones and tablets cannot meet these needs, requiring the support of specific outdoor energy storage power banks. In one scenario example, such as... Figure 17 As shown, the charging device 100 can be connected to the first power battery pack 200a for use as an indoor / outdoor mobile power source to power the speaker 1200 and the electric hot pot 1300. As an example, the main body 110 can be configured as a portable structure, so that the first power battery pack 200a can be inverted into AC by the power conversion module 150 and then powered through the power output unit 140.

[0180] It is understandable that in indoor settings, such as gatherings or barbecues in the courtyard, the portable power source generated by the charging device 100 can be used to power electrical appliances.

[0181] In one scenario example, the power input section 130 of the charging device 100 is connected to the power grid for use as an uninterruptible power supply, and / or to charge the connected energy storage device 200 using grid power during off-peak hours and to stop charging the energy storage device 200 during peak hours. Specifically, as... Figure 18 As shown, the power input section 130 of the charging device 100 includes at least one AC input terminal 131, which is connected to the mains power grid via a wall socket or power strip socket 400. When an abnormality in the mains power output is detected, the charging device converts the energy from the energy storage battery pack into AC mains power and connects it to the grid for use as a backup power source for the household. When the energy storage device is low on power, the user can set the charging device to automatically draw power from the grid to charge the energy storage device during peak / off-peak electricity consumption periods. Specifically, based on the user-set timer, the energy storage device can be charged during off-peak electricity price periods and stopped during peak electricity price periods, and the energy storage device can be used to provide power to electrical appliances at the power output section.

[0182] Taking peak-valley time-of-use electricity pricing as an example, a 24-hour day is divided into several periods, such as peak, flat, and low periods, with different electricity price levels for each period. For example, the peak electricity price is from 8:00 AM to 12:00 PM, the flat electricity price is from 12:00 PM to 5:00 PM, the peak electricity price is from 5:00 PM to 9:00 PM, the flat electricity price is from 9:00 PM to midnight, and the low electricity price is from midnight to 8:00 AM the next day.

[0183] Therefore, users can schedule the charging of the energy storage device 200 from midnight to 8 am the next day. During peak electricity prices, such as from 8 am to 12 pm and from 5 pm to 9 pm, users can choose whether to charge, discharge, or not charge or discharge the energy storage device 200. During other off-peak periods, users can choose whether to charge, discharge, or not charge or discharge the energy storage device 200 based on factors such as its power level.

[0184] In one scenario, the energy storage connection 120 of the charging device 100 is connected to the energy storage device 200, the power input 130 is connected to the mains socket 400, and the power output 140 is connected to an external power source. In this scenario, the charging device 100 can achieve multiple power supply methods. For example, it can supply power to the external power source from the mains, essentially functioning as a power strip. Alternatively, the charging device 100 can supply power to the external power source from the mains while simultaneously charging the connected energy storage device 200. Or, it can supply power to the external power source from the mains, and when the mains power is disconnected (e.g., due to a power outage, socket failure, or other conditions), the charging device 100 uses the energy storage device 200 to supply power to the power output 140, ensuring uninterrupted power supply. Therefore, in this scenario, the charging device 100 can be used as a "UPS that charges while in use" in an indoor environment. The principle will be further explained below.

[0185] For example, refer to Figures 19 to 21 In an indoor setting, the charging device 100 is connected to an energy storage device, the power input unit 130 can be kept connected to the mains socket 400, and the power output unit 140 can be connected to a personal computer 1400 to provide power.

[0186] For example, a switch A is formed between the AC input terminal 131 and the first AC output terminal 142, and the control terminal of switch A is connected to the main control unit 1601. Figure 19 As shown, when the AC input terminal 131 is connected to the mains socket 400, switch A can be turned on first to transfer external AC power to the first AC output terminal 142 to power the electrical device 1400. In this case, the charging device 100 is equivalent to a power strip.

[0187] like Figure 20 As shown, when the AC input terminal 131 is connected to the mains socket 400 and the energy storage device 200 is not fully charged, switch A can be turned off so that the external AC power supply can charge the energy storage device 200 while supplying power to the electrical equipment 1400, thereby realizing the "charge while using" function.

[0188] Optionally, the charging device 100 can detect the input power of the external AC power supply at the power input section 130, thereby allowing the power conversion module 150 to limit the charging power based on the input power of the external AC power supply. For example, the charging power can be limited to the safe output power of the external AC power supply minus the output power and safety margin power of the AC output terminal. For instance, if the socket provides a safe output power of 1440W for the external AC power supply, and assuming that 900W of the output power from the power output section 140 is used by the electrical device, leaving a 100W safety margin, the remaining 440W can be used to charge the energy storage device 200. In an optional embodiment, if the electrical device experiences a large power change, such as a change in output power exceeding 200W due to switching on and off, the charging power can be adjusted in real time according to the above-mentioned calculation method for limiting the charging power. For example, if the power of the electrical device decreases by 200W, the output charging power of the power conversion module 150 increases by 200W. If the power of the electrical device increases by 200W, the output charging power of the power conversion module 150 decreases by 200W. In some embodiments, minor power fluctuations during normal operation may not affect the charging power.

[0189] like Figure 21 As shown, when the AC input terminal 131 is not connected to an external AC power source, or when the AC input terminal 131 is connected to the mains socket 400 but the mains power is interrupted, the power conversion module 150 uses the electrical energy stored in the energy storage device 200 to power the electrical device 1400. For example, the DC voltage output by the energy storage device 200 is inverted to form an AC voltage and output at the first AC output terminal 142. In this case, even in a scenario where the mains power is interrupted, the power supply from the energy storage device 200 can still maintain the power supply to the original electrical device. Furthermore, the DC voltage output by the energy storage device 200 can also be converted to a DC voltage (such as 12V, 5V, etc.) through a DC-DC converter and output at a DC input interface (such as a cigarette lighter, USB-A, USB-C, etc.).

[0190] Please see Figure 22 The following exemplarily describes the specific composition of the charging device 100. The electronic control functions of the charging device 100 can be implemented by multiple circuit boards and multiple electronic components. The charging device 100 may include an inverter circuit board 1500, a control circuit board 1600, and a display circuit board 1700. The inverter circuit board 1500 integrates a power conversion module 150. The control circuit board 1600 integrates a microcontroller and multiple communication circuits. The display circuit board 1700 may integrate a power output unit 140, a display screen 192, etc. The inverter circuit board 1500 may be located within the accommodating space 117. The control circuit board 1600 may be located within the second side 114, and the display circuit board 1700 may be located within the first side 113. Simultaneously, the power input unit 130 and the vehicle charger output terminal 143 may be integrated within the second side 114.

[0191] Please see Figure 22 and Figure 23 , Figure 23 This is a schematic diagram of the inverter circuit board 1500. The inverter circuit board 1500 may include multiple ports, including a second DC output interface 1510 for outputting DC power, an AC input interface 1520 connected to the AC input terminal 131 (mains power), an auxiliary power supply terminal 1530 for outputting DC power as an auxiliary power source, a second AC output interface 1540 for outputting AC power, a photovoltaic interface 1550 electrically connected to the DC input terminal 132 (solar cell), an RS485 communication terminal 1560 supporting RS485 communication (multiple RS485 communication terminals are EN, RS485A, RS485B, BAT-, +24V, PV+, BAT+ in sequence), a multi-function communication terminal 1570 supporting other communication protocols (CAN-H, CAN-L, 0V, S1, P1, C1, O1, 5V), a fan terminal 1580 connected to a fan, and a communication terminal 1590 for multiple units connected in parallel. In addition, the inverter circuit board 1500 may also include a power conversion control unit 1591.

[0192] Specifically, the second AC output interface 1540 can be integrated into the first side 113. The AC input interface 1520 and the photovoltaic interface 1550 can be integrated into the second side 114. The second DC output interface 1510 is configured to supply power to the first DC output terminal 141 (vehicle charger output terminal 143, USB-A, USB-C, Lightning, and cigarette lighter, etc.) and the energy storage device 200.

[0193] It is understandable that multiple components can be integrated on the inverter circuit board 1500 to achieve functions such as DC-DC, DC-AC, AC-DC, and AC-AC. Furthermore, the inverter circuit board 1500 can also achieve bidirectional inversion. That is, the inverter circuit board 1500 can convert AC power input from the AC input interface 1520 into DC power and output it from the second DC output interface 1510, and it can also convert DC power input from the second DC output interface 1510 into AC power and output it from the second AC output interface 1540.

[0194] Furthermore, regarding the AC output of inverter circuit board 1500, its rated output voltage can be 120V (110V-130V). The output voltage frequency can be 60Hz (59.5Hz-60.5Hz). The output waveform can be a sine wave. The output current harmonics can be ≤3%. The output voltage regulation rate can be ±5%. The efficiency can reach 90%. Inverter circuit board 1500 can have short-circuit protection and overload protection. Short-circuit protection is not self-resetting and requires power cycling. Overload protection is set to protect after 10 seconds when the current load is 105%-130% of the rated load; after 1.5 seconds when the current load is 131%-150% of the rated load; after 500ms when the current load is greater than 150% of the rated load; and after 500ms when the current load is 7200W.

[0195] Regarding the DC input of the inverter circuit board 1500, its rated input voltage is 51.2V (40V-58.8V). Undervoltage protection is available at 40.0V (39.5V-40.5V). Overvoltage protection is available at 58.5V (58V-59.0V). Float charge voltage is available at 58.2V (58.0V-58.4V).

[0196] Regarding the AC charging of the inverter circuit board 1500 (e.g., to the energy storage device 200), its input voltage range can be between 100V and 240V. The input frequency can be between 45Hz and 65Hz. The input current can be 14.5A ± 0.5A. The charging output can be 35V-58.2V DC. The charging conversion efficiency can be 89%.

[0197] The inverter circuit board 1500 has a power factor (PF) greater than 0.9 at rated full load. Its quiescent power consumption is less than 200uA. Its total harmonic distortion (THD) is less than 3% of rated full load. At 57V rated full load, the inverter circuit board 1500's efficiency is greater than 0.91.

[0198] Please see Figure 22The control circuit board 1600 may include a main control unit 1601, a battery pack communication unit 1602, a voltage sampling unit 1603, a current sampling unit 1604, a current sampling circuit 1605, a power unit 1606, a drive unit 1607, an isolation unit 1608, a vehicle charger communication unit 1609, a pre-charge unit 1610, an anti-backflow unit 1611, a first switch unit 1612, a first step-down unit 1613, a second step-down unit 1614, a second switch unit 1615, a fan unit 1616, a panel communication unit 1617, an inverter communication unit 1618, a clock unit 1619, a remote control unit 1620, a cover opening monitoring unit 1621, and a log unit 1622.

[0199] Among them, the power conversion control unit 1591 is connected to the inverter communication unit 1618, and the auxiliary power supply terminal 1530 is connected to the anti-backflow unit 1611 and is configured to supply power to the main control unit 1601.

[0200] The display circuit board 1700 may include a panel control unit 1710, a panel switch unit 1720, a display screen control unit 1730, and a light strip control unit 1740. The display screen control unit 1730 is connected to the display screen 192. The light strip control unit 1740 is connected to the light strip 191.

[0201] It is understood that the inverter circuit board 1500, control circuit board 1600, and display circuit board 1700 described above enable the charging device 100 to perform multiple functions. These circuit boards may have multiple power lines and communication lines. Several power lines and communication lines are illustrated below. It is understood that the power lines and communication lines in this specification are not limited to those described below; all lines enabling the functions achieved by the inverter circuit board 1500, control circuit board 1600, and display circuit board 1700 are within the scope of this specification.

[0202] First, the aforementioned circuit board can have multiple power lines.

[0203] In one embodiment, power needs to be supplied to the main control unit 1601. (See also...) Figure 24AAt this time, power can be supplied to the main control unit 1601 through the energy storage device 200 or the auxiliary power supply terminal 1530. Specifically, the energy storage device 200 and the auxiliary power supply terminal 1530 can both be connected to the input terminal of the backflow prevention unit 1611. The output terminal of the backflow prevention unit 1611 is sequentially connected to the first switching unit 1612, the first step-down unit 1613, and the second step-down unit 1614, and then connected to the main control unit 1601. The energy storage device 200 and the auxiliary power supply terminal 1530 can output electrical energy with a voltage of 58V. The first step-down unit 1613 is configured to reduce the 58V voltage to 12V, and the second step-down unit 1614 is configured to reduce the 12V voltage to 3.3V. This 3.3V can be the power supply voltage for the main control unit 1601.

[0204] In one embodiment, the charging device 100 needs to be activated. A hardware switch (not shown) may be provided on the charging device 100. For example, the hardware switch may be located on the first side 113. The hardware switch is connected to the panel switch unit 1720. When the hardware switch is triggered in a first preset manner (e.g., the hardware switch is pressed and held for one second), the panel switch unit 1720 receives a corresponding signal change and uses this signal change as a start signal. Then, the panel switch unit 1720 sends the start signal to the first switch unit 1612, and the first switch unit 1612 is turned on based on the start signal. After the first switch unit 1612 is turned on, the electrical energy of the energy storage device 200 and the auxiliary power supply terminal 1530 can supply power to the main control unit 1601 via the backflow prevention unit 1611, the first switch unit 1612, the first step-down unit 1613, and the second step-down unit 1614.

[0205] After the main control unit 1601 is powered on, it can send a self-locking signal to the first switch unit 1612 so that the first switch unit 1612 continues to work.

[0206] Subsequently, when the hardware switch is triggered in the second preset manner (e.g., the hardware switch is pressed and held for three seconds), the panel switch unit 1720 receives the corresponding signal change and uses this signal change as a shutdown signal. The panel switch unit 1720 sends the shutdown signal to the main control unit 1601, the main control unit 1601 is powered down, and the first switch unit 1612 is disconnected.

[0207] In one embodiment, see Figure 24B The energy storage device 200 needs to be powered by AC mains power. At this time, the AC mains power is connected to the AC input interface 1520, converted into DC power by the power conversion module 150, and output from the second DC output interface 1510. The second DC output interface 1510 is electrically connected to the power unit 1606, and the power flows to the energy storage device 200 through the power unit 1606.

[0208] In one embodiment, see Figure 24C The multi-functional vehicle needs to be powered by AC mains electricity. The multi-functional vehicle is connected to the vehicle charger output terminal 143. At this time, AC mains electricity is connected to the AC input interface 1520, converted into DC power by the power conversion module 150, and output from the second DC output interface 1510. The second DC output interface 1510 is electrically connected to the power unit 1606, and the power flows to the vehicle charger output terminal 143 through the power unit 1606.

[0209] In one embodiment, see Figure 24D The system needs to supply power to the external AC load via mains power. The external AC load is connected to the first AC output terminal 142. At this time, mains power is connected to the AC input interface 1520, and after being converted into AC power with the same voltage as the external AC load by the power conversion module 150, it is then supplied to the external AC load via the first AC output terminal 142.

[0210] In one embodiment, to illuminate the display screen 192, the energy storage device 200 or the auxiliary power supply terminal 1530 can be used to supply power to the display screen 192. Specifically, the energy storage device 200 and the auxiliary power supply terminal 1530 can both be connected to the input terminal of the anti-backflow unit 1611. The output terminal of the anti-backflow unit 1611 is sequentially connected to the first switching unit 1612, the first step-down unit 1613, the second switching unit 1615, and the panel control unit 1710. By supplying power to the panel control unit 1710, the display screen 192 is illuminated.

[0211] Secondly, the aforementioned circuit board can have multiple communication lines. Specifically, the main control unit 1601 is connected to the battery pack communication unit 1602, voltage sampling unit 1603, current sampling unit 1604, isolation unit 1608, vehicle charger communication unit 1609, pre-charge unit 1610, first switch unit 1612, second switch unit 1615, fan unit 1616, panel communication unit 1617, inverter communication unit 1618, clock unit 1619, remote control unit 1620, cover opening monitoring unit 1621, and log unit 1622.

[0212] The power conversion control unit 1591 is communicatively connected to the inverter communication unit 1618. The panel control unit 1710 is communicatively connected to the display control unit 1730, the light strip control unit 1740, the first DC output terminal 141, and the first AC output terminal 142.

[0213] In one embodiment, the charging device 100 needs to stop the charging and discharging of the energy storage device 200 when the multi-functional vehicle 500 is connected. The main control unit 1601 sends a polling message to the vehicle charging communication unit 1609 to detect whether the vehicle charging communication unit 1609 is connected to the multi-functional vehicle 500. When the main control unit 1601 receives the handshake information from the multi-functional vehicle 500, the main control unit 1601 disconnects the driving unit 1607 from the corresponding circuit of the energy storage device 200 by disconnecting the isolation unit 1608 from the corresponding circuit of the energy storage device 200, thereby stopping the charging and discharging of the energy storage device 200 and preventing abnormal conditions from occurring in the energy storage device 200.

[0214] In one embodiment, the charging device 100 needs to display the estimated discharge duration of the energy storage device 200 on the display screen 192. At this time, the main control unit 1601 can obtain the remaining capacity (Ah) of the energy storage device 200 from the battery pack communication unit 1602, and then obtain the current value (I) from the current sampling unit 1604. The main control unit 1601 can obtain the estimated discharge duration by dividing the remaining capacity by the current value. Afterwards, the main control unit 1601 sends the estimated discharge duration to the display control unit 1730 via the panel communication unit 1617, and the display control unit 1730 controls the display screen 192 to display the estimated discharge duration.

[0215] Furthermore, the power lines and communication lines can be used together to achieve other functions of the charging device 100.

[0216] In one embodiment, see Figure 24C The multi-functional vehicle 500 needs to be powered by AC mains electricity. The multi-functional vehicle 500 is connected to the vehicle charger output terminal 143, which is connected to the power unit 1606. At this time, AC mains electricity is connected to the AC input interface 1520, converted into DC power by the power conversion module 150, and output from the second DC output interface 1510, which is electrically connected to the power unit 1606. Simultaneously, after receiving the handshake information from the multi-functional vehicle 500, the main control unit 1601 applies voltage to the corresponding circuit in the isolation unit 1608, thereby enabling the circuit in the isolation unit 1608 to conduct. The isolation unit 1608 is communicatively connected to the drive unit 1607, thereby enabling the drive unit 1607 to conduct with the corresponding circuit of the multi-functional vehicle 500, which in turn enables the power unit 1606 to conduct with the corresponding circuit of the multi-functional vehicle 500, so that the DC power at the second DC output interface 1510 flows to the multi-functional vehicle 500 through the power unit 1606 and the vehicle charger output terminal 143.

[0217] Similarly, in one embodiment, please refer to Figure 24BThe energy storage device 200 needs to be powered by AC mains electricity, and the energy storage device 200 is connected to the power unit 1606. At this time, the AC mains electricity is connected to the AC input interface 1520, converted into DC power by the power conversion module 150, and output from the second DC output interface 1510, which is electrically connected to the power unit 1606. Simultaneously, after receiving information from the battery pack communication unit 1602, the main control unit 1601 applies voltage to the corresponding circuit in the isolation unit 1608 connected to the energy storage device 200, thus enabling the circuit in the isolation unit 1608 to conduct. The isolation unit 1608 is communicatively connected to the drive unit 1607, thereby enabling the drive unit 1607 to conduct with the corresponding circuit in the energy storage device 200, which in turn allows the power unit 1606 to conduct with the energy storage device 200, allowing the DC power at the second DC output interface 1510 to flow to the energy storage device 200 via the power unit 1606.

[0218] In one embodiment, such as Figure 19 As shown, a switch A is formed between the AC input terminal 131 and the first AC output terminal 142. The control terminal of switch A can be connected to the main control unit 1601 via the power conversion control unit 1591 and the inverter communication unit 1618. When the AC input terminal 131 is connected to the mains socket 400, the power conversion control unit 1591 sends this information to the main control unit 1601 via the inverter communication unit 1618. When an external AC load (e.g., an electric fan) is connected to the first AC output terminal 142, the panel control unit 1710 can send this information to the main control unit 1601. At this time, the main control unit 1601 can turn on switch A to transfer mains power from the second AC output interface 1540 to the first AC output terminal 142, supplying power to the external AC load.

[0219] For further details, please refer to Figure 24E When an external DC load (e.g., a smartphone) is connected to the USB port in the first DC output terminal 141, and an external AC load (e.g., an electric fan) is connected to the first AC output terminal 142, the panel control unit 1710 can send this information to the main control unit 1601. At this time, the main control unit 1601 can disconnect switch A, allowing the AC mains power to be converted into DC power by the power conversion module 150 and output from the second DC output interface 1510, and then from the USB port. On the other hand, the AC mains power, after passing through the power conversion module 150, is transmitted from the second AC output interface 1540 to the first AC output terminal 142 to supply power to the external AC load. This allows for simultaneous DC and AC output.

[0220] Similarly, when the energy storage device 200 is low on power, the mains power can be converted into DC power by the power conversion module 150 and output from the second DC output interface 1510, flowing from the power unit 1606 to the energy storage device 200. This allows for "charging while using".

[0221] Specifically, in one embodiment, the main control unit 1601 can be a microcontroller U19. The main control unit 1601 may have multiple pins, which can be connected to other units on the control circuit board 1600, which will not be described in detail here. In addition, a crystal oscillator and a programming unit can be provided in conjunction with the main control unit 1601.

[0222] In one embodiment, the voltage sampling unit 1603 sends the collected voltage value to the main control unit 1601. It is understood that when the energy storage device 200 consists of multiple small packets, the charging device can have multiple voltage sampling units 1603.

[0223] In one embodiment, a current sampling unit 1604 and a current sampling circuit 1605 are correspondingly configured. The current sampling unit 1604 is connected between the current sampling circuit 1605 and the main control unit 1601, and is configured to send the collected current value to the main control unit 1601. The current sampling unit 1604 may include a current sampling chip (when the energy storage device 200 consists of two small packages, two current sampling chips may be included respectively). As an example, the current sampling circuit 1605 may include a sampling resistor. One end of the sampling resistor may be connected to the negative terminal of the energy storage device 200, and the other end may be connected to the current sampling chip of the current sampling unit 1604. That is, both the current sampling unit 1604 and the current sampling circuit 1605 are located on the negative side of the energy storage device 200 to avoid damage under high current.

[0224] Furthermore, the current sampling circuit 1605 in this embodiment can also distinguish between charging and discharging states. For example, under normal circumstances, the charging current and discharging current flowing through the sampling resistor are different, resulting in different voltages across the sampling resistor. Therefore, the charging and discharging state of the energy storage device 200 can be determined based on the voltage value of the sampling resistor.

[0225] It is understood that when the voltage value collected by the voltage sampling unit 1603 or the current value collected by the current sampling unit 1604 is abnormal (e.g., a short circuit or short circuit in the energy storage device 200), the main control unit 1601 can issue an alarm. As an example, the alarm may include, but is not limited to, audible and visual alarms. Specifically, the main control unit 1601 can communicate with the display screen 192 to display relevant content on the display screen 192. Alternatively, the main control unit 1601 can connect to the application program (APP) of the mobile terminal 700 through the remote control unit 1620 to display relevant content on the mobile terminal 700.

[0226] In one embodiment, the power unit 1606, the drive unit 1607, the isolation unit 1608, and the main control unit 1601 are connected in sequence. The power unit 1606 is configured to control the external power supply 300 to charge the energy storage device 200 and / or supply power to the external load connected to the first DC output terminal 141 based on the signals sent by the main control unit 1601.

[0227] The driving unit 1607 is configured to drive the power unit 1606. The isolation unit 1608 is configured for opto-isolation. The input terminal of the isolation unit 1608 is connected to the energy storage device 200 (or the first step-down unit 1613) and the auxiliary power supply terminal 1530. The output terminal of the isolation unit 1608 is equipped with a light-emitting device (e.g., an LED), and the control terminal of the isolation unit 1608 is connected to the main control unit 1601. The input terminal of the driving unit 1607 is equipped with a photoelectric conversion device (e.g., a photosensitive device) corresponding to the light-emitting device, and the output terminal of the driving unit 1607 is communicatively connected to the power unit 1606.

[0228] Specifically, one end of the power unit 1606 is connected to the power input section 130 (second DC output interface 1510), and the other end is connected to the energy storage device 200 and the first DC output terminal 141 (including the car charger output terminal 143, USB terminal, and cigarette lighter). When power needs to be supplied to the energy storage device 200 and the first DC output terminal 141, the main control unit 1601 can activate the drive unit 1607 by turning on the isolation unit 1608, thereby turning on the power unit 1606. When power does not need to be supplied to the energy storage device 200 and the first DC output terminal 141, the main control unit 1601 can disconnect the isolation unit 1608, disconnect the drive unit 1607, and thereby disconnect the power unit 1606.

[0229] Specifically, when the energy storage device 200 consists of two small packages, the power unit 1606, drive unit 1607, and isolation unit 1608 can each contain four circuits. The first circuit is configured to control one of the small packages in the energy storage device 200. The second circuit is configured to control the USB port and cigarette lighter socket in the first DC output terminal 141. The third circuit is configured to control the other small package in the energy storage device 200. The fourth circuit is configured to control the car charger output interface 143. The following explanation uses charging the energy storage device 200 as an example. It can be understood that the components and connection methods in the four circuits can be consistent.

[0230] Furthermore, the power unit 1606 may include a first switching circuit, a second switching circuit, a third switching circuit, and a fourth switching circuit. The first switching circuit is configured as a switch for a small package within the energy storage device 200. The second switching circuit is configured as a switch for the USB port and cigarette lighter socket in the first DC output terminal 141. The third switching circuit is configured as a switch for another small package within the energy storage device 200. The fourth switching circuit is configured as a switch for the car charger output interface 143.

[0231] The control principles of the four switching circuits described above are similar. The following explanation uses the first switching circuit as an example to illustrate its operating principle. The control terminal of the first switching circuit can be G1. When power needs to be supplied to the energy storage device 200, the main control unit 1601 can turn on the first switching circuit. Similarly, when power is not needed to supply power to the energy storage device 200, the main control unit 1601 can turn off the first switching circuit. This achieves control over the opening and closing of the energy storage device 200.

[0232] In one possible scenario, the first switching circuit is connected to the positive terminal of the energy storage device 200. Placing the first switching circuit at the positive terminal allows for rapid circuit disconnection, thereby improving the response efficiency of the power unit 1606. Specifically, the first switching circuit includes multiple first field-effect transistors (FETs) connected in parallel to share the current, thus preventing damage to the FETs from large currents. For example, the first switching circuit may include three first field-effect transistors connected in parallel.

[0233] Of course, the first switching circuit can be connected to the negative terminal of the energy storage device 200.

[0234] In one embodiment, the vehicle charger communication unit 1609 is configured to detect the connection status of the multi-functional vehicle 500. One end of the vehicle charger communication unit 1609 is communicatively connected to the main control unit 1601, and the other end is communicatively connected to the vehicle charger output terminal 143.

[0235] Furthermore, upon detecting a connection to the multi-functional vehicle 500, the vehicle charging communication unit 1609 sends connection information to the main control unit 1601. Based on the connection information, the main control unit 1601 disconnects the first switching circuit to control the energy storage device 200 to stop charging and discharging, thereby protecting the energy storage device 200.

[0236] Specifically, the vehicle charger communication unit 1609 includes a first detection circuit configured to detect whether the vehicle charger output terminal 143 is connected to the multi-functional vehicle 500. The first detection circuit includes a vehicle charger access point and a vehicle charger detection point. The vehicle charger access point is a probe connected to the multi-functional vehicle 500 and having a preset voltage. The vehicle charger detection point is connected to the main control unit 1601. The main control unit 1601 determines whether the vehicle charger output terminal 143 is connected to the multi-functional vehicle 500 based on the voltage of the vehicle charger detection point.

[0237] The first detection circuit may include a first charging detection power supply (e.g., +12V) and three vehicle charging resistors connected in series: a first vehicle charging resistor, a second vehicle charging resistor, and a third vehicle charging resistor. The first charging detection power supply is connected to the first vehicle charging resistor, and the third vehicle charging resistor is grounded. As an example, the resistance of the first vehicle charging resistor may be 100KΩ, the resistance of the second vehicle charging resistor may be 100KΩ, and the resistance of the third vehicle charging resistor may be 27KΩ. The above data is for illustrative purposes only. The vehicle charger connection point is located between the first and second vehicle charging resistors, and the vehicle charger detection point is located between the second and third vehicle charging resistors.

[0238] In addition, the first detection circuit includes a first vehicle charging diode, the anode of which is connected to a first charging detection power supply, and the cathode of which is connected to a first vehicle charging resistor. This prevents reverse current flow.

[0239] Since the multi-functional vehicle 500 is equipped with a probe with a preset voltage, when the vehicle charger output terminal 143 is connected to the multi-functional vehicle 500, the vehicle charger access point will receive the preset voltage, thereby causing a change in the voltage of the vehicle charger detection point. The main control unit 1601 can determine whether the vehicle charger output terminal 143 is connected to the multi-functional vehicle 500 based on the voltage change of the vehicle charger detection point.

[0240] Furthermore, the vehicle charger communication unit 1609 includes a follower circuit. The follower circuit is connected between the vehicle charger detection point and the control unit 1601. The follower circuit is configured to increase the load capacity of the first detection circuit. Specifically, the follower circuit includes an operational amplifier, with its positive input connected to its output, its negative output connected to the vehicle charger detection point, and its output connected to the control unit. This provides extremely high input impedance and extremely low output impedance.

[0241] Furthermore, the follower circuit may also include a first communication protection circuit, through which the output of the operational amplifier is connected to the control unit 1601. The first communication protection circuit may include a communication protection power supply, a communication protection capacitor, a first communication protection diode, and a second communication protection diode connected in series. The cathode of the first communication protection diode is connected to the communication protection capacitor, and the anode of the first communication protection diode is connected to the cathode of the second communication protection diode. The anode of the second communication protection diode is grounded. The communication protection power supply is configured to power the operational amplifier, and the communication protection capacitor is configured for filtering. The output of the operational amplifier is connected to the control unit via the first and second communication protection diodes. The first and second communication protection diodes constitute a bidirectional level clamping protection circuit to prevent overvoltage surges.

[0242] In one embodiment, the charging device 100 includes a pre-charge unit 1610 configured to prevent instantaneous current from damaging the vehicle charger output terminal 143. The pre-charge unit 1610 may be connected between the anti-backflow unit 1611 and the vehicle charger output terminal 143. As an example, the pre-charge unit 1610 may include a pre-charge resistor. This pre-charge resistor may be connected between the anti-backflow unit 1611 and the vehicle charger output terminal 143 so that when the charging device 100 is powered on, the line between the anti-backflow unit 1611 and the vehicle charger output terminal 143 has a small current, thereby preventing instantaneous large current from damaging the vehicle charger output terminal 143.

[0243] Furthermore, the pre-charge unit 1610 may also include a pre-charge switch, the control terminal of which can be connected to the main control unit 1601. When the charging device 100 is powered on, the pre-charge switch is turned on, so that there is a small current in the line between the backflow prevention unit 1611 and the vehicle charger output terminal 143. It can be understood that when the multi-functional vehicle 500 needs to be charged, the power unit 1606 is turned on, and the current in the pre-charge unit 1610 can be ignored.

[0244] In one embodiment, a fan unit 1616 is provided, which is communicatively connected to a main control unit 1601. The fan unit 1616 is configured to control a fan 801 to cool the energy storage device 200. A first step-down unit 1613 may be connected to the fan unit 1616 to provide a 12V operating voltage to the fan. The main control unit 1601 is communicatively connected to the fan unit 1616 to provide start and stop signals for the operation of the fan unit 1616.

[0245] In one embodiment, a panel communication unit 1617, which is communicatively connected to the main control unit 1601, is configured to communicate with the panel control unit 1710. As an example, the panel communication unit 1617 can communicate with the panel control unit 1710 via RS485.

[0246] In one embodiment, an inverter communication unit 1618 is provided, which is communicatively connected to the main control unit 1601. The inverter communication unit 1618 is configured to communicate with the power conversion control unit of the power conversion module 150. The power conversion module 150 is configured, under the control of the power conversion control unit, to convert the power supply voltage received from the external power supply 300 at the DC input terminal 132 or the AC input terminal 131 into a power supply voltage output by the energy storage device 200 and the power output unit 140. That is, the power conversion module 150 internally performs AC-DC, DC-AC, DC-DC, or AC-AC conversions, depending on the communication information between the main control unit 1601 and the power conversion control unit via the inverter communication unit 1618.

[0247] In one embodiment, the charging device 100 may further include a clock unit 1619 communicatively connected to the main control unit 1601. The clock unit 1619 is configured to provide continuous, accurate time (e.g., year, month, day, hour, minute, second) and date information.

[0248] As an example, clock unit 1619 may include a clock chip. Main control unit 1601 may provide a 3.3V startup voltage to the clock chip. Simultaneously, a diode may be placed between main control unit 1601 and clock chip U23 to prevent current backflow into main control unit 1601.

[0249] In one embodiment, the charging device 100 may further include a remote control unit 1620 communicatively connected to the main control unit 1601. The remote control unit 1620 enables the charging device 100 to have remote communication control functions such as Bluetooth / Wifi, and to remotely control external devices 700.

[0250] In one embodiment, the charging device 100 may further include a cover-opening monitoring unit 1621 communicatively connected to the main control unit 1601. The cover-opening monitoring unit 1621 is configured to send a signal to the main control unit 1601 indicating whether the cover 160 is closed. Furthermore, if the cover 160 is detected to be open, the main control unit 1601 reduces the charging and discharging current of the energy storage device 200.

[0251] Correspondingly, the charging device 100 may also include an opening detection component corresponding to the opening monitoring unit 1621. The opening detection component may be located on the surface of the receiving portion 111 where the opening is provided and / or on the cover 160, configured to detect whether the cover 160 is open, and connected to the opening monitoring unit 1621.

[0252] As an example, the cover opening detection component may be located only on the surface of the receiving portion 111 where the opening is provided. For example, the cover opening detection component may be a pressure detector. In this case, if the cover 160 is opened, the pressure detector detects a decrease, indicating that the cover 160 is open. In another example, the cover opening detection component may also be located inside the receiving portion 111. For example, the cover opening detection component may monitor the center of gravity of the charging device 100. If the cover 160 is opened, the center of gravity of the charging device 100 will change accordingly. The cover opening detection component detects this change in the center of gravity, indicating that the cover 160 is open. This specification does not limit the specific location or specific device of the cover opening detection component.

[0253] Furthermore, the cover 160 has a first side, and the surface of the receiving portion 111 where the opening is provided has a first edge, the first side being hinged to the first edge, and the cover opening detection component is provided on the first edge and / or the first side. In this case, by providing the cover opening detection component on the first edge and / or the first side, the possibility of the cover 160 loosening due to vibration, thereby causing a decrease in the charging and discharging current of the energy storage device 200, is reduced.

[0254] The following example illustrates how the cover opening detection unit 1621 operates when the cover opening detection components are a Hall sensor and a magnet.

[0255] One of the Hall sensor and the magnet is disposed on the surface of the receiving portion with an opening, and the other is disposed on the cover. For example, the Hall sensor can be located on the surface of the receiving portion 111 with an opening, and the magnet can be disposed on the cover 160, thereby facilitating communication between the Hall sensor and the control circuit board 1600. Specifically, the Hall sensor is disposed on the surface of the receiving portion 111 with an opening, and the Hall sensor has a recessed hole. The magnet is disposed on the cover 160 and protrudes from the cover 160. When the cover 160 is closed, the magnet engages with the recessed hole, thereby accurately monitoring whether the cover 160 is open.

[0256] The Hall sensor is connected to the lid opening detection unit 1621. When the lid 160 is open, the Hall sensor sends a first level (e.g., high level) to the main control unit 1601 via the lid opening detection unit 1621. When the lid 160 is closed, the Hall sensor sends a second level (e.g., low level) to the main control unit 1601 via the lid opening detection unit 1621.

[0257] Specifically, the lid opening detection unit 1621 includes a filtering circuit. The filtering circuit is connected between the Hall sensor and the main control unit 1601 and is configured to separate the signal related to the opening of the lid 160.

[0258] For example, the filter circuit includes a first open-cover resistor, a second open-cover resistor, a first open-cover capacitor, and a second open-cover capacitor. The first and second open-cover resistors are connected in parallel between the Hall sensor and the main control unit. The first open-cover capacitor is connected between the first open-cover resistor and the ground terminal, and the second open-cover capacitor is connected between the second open-cover resistor and the ground terminal. The first open-cover resistor and the first open-cover capacitor form an RC filter circuit. The second open-cover resistor and the second open-cover capacitor also form an RC filter circuit. By setting up the filter circuit, the possibility of the main control unit 1601 mistakenly reducing the charging and discharging current of the energy storage device 200 is reduced.

[0259] In one embodiment, the charging device 100 may further include a log unit 1622 communicatively connected to the main control unit 1601. The log unit 1622 may include a log unit core to record the usage log of the charging device 100.

[0260] In this embodiment, by setting up a log unit 1622, it is convenient to record the usage status of the charging device 100, which is beneficial for troubleshooting, etc.

[0261] In one embodiment, the charging device 100 may further include a fault warning unit connected to the main control unit 1601. The fault warning unit may include a comparator. Normally, the positive input of the comparator is connected to a 12V power supply, the negative input is connected to a 5V power supply, and the output is connected to a pin of the control unit 1601 and is at a high level. In case of a fault, when the power supply connected to the positive input of the comparator is lower than 5V (or lower than 6.25V), the output of the comparator U24 is low, and the control unit 1601 activates the fault warning. For example, the fault warning may include audible, visual, or electrical signals.

[0262] In one embodiment, a light strip 191 may be provided on the panel (e.g., the first side 113) of the charging device 100, and the light strip 191 is configured for illumination. The panel control unit 1710 is communicatively connected to the light strip control unit 1740 of the light strip 191.

[0263] In one embodiment, see Figure 25 The charging device 100 can simultaneously input AC and DC power (solar cell). In this case, the power conversion module 150 may include an AC-DC converter, a DC-DC converter, and a bus.

[0264] The AC input terminal 131 is connected to the bus via an AC-DC conversion unit, and the DC input terminal 132 is connected to the bus via a DC-DC conversion unit. The bus is connected to the second DC output interface 1510 and the second AC output interface 1540, respectively. Specifically, the AC input terminal 131 receives 110V AC power, which is converted to 400V DC power via the AC-DC conversion unit. The DC input terminal 132 receives 12V DC power, which is converted to 400V DC power via the DC-DC conversion unit, thereby achieving simultaneous input of AC and DC power.

[0265] Then, depending on the needs of the external load, a DC-DC conversion or a DC-AC conversion can be performed.

[0266] The aforementioned function of connecting to solar cells can be achieved through a photovoltaic inverter. Optionally, the photovoltaic inverter can be integrated into the power conversion module 150, or it can be a non-fixed, independent component that can be selectively connected to the charging device 100 as an optional accessory. Optionally, the charging device 100 has a reserved expansion interface for fixed connection of the photovoltaic inverter. The input voltage of the photovoltaic inverter can be between 12V and 60V. The charging power of the photovoltaic inverter can reach 1500W. The maximum input current of the photovoltaic inverter is 25A. The photovoltaic inverter in the charging device 100 can intelligently identify DC charging such as car chargers, adapters, or PV inputs, and control the corresponding charging method.

[0267] In one embodiment, the AC input terminal 131 is configured to input AC power of 120V-240V, and the first AC output terminal 142 is configured to output AC power of 120V.

[0268] The electronic components within the power conversion module 150 can withstand 240V AC power, thus it is applicable to a voltage range of 120V-240V.

[0269] Meanwhile, the first AC output terminal 142 is configured to output 120V AC power to meet safety regulations. Furthermore, when the power conversion module 150 detects an input of 240V AC power, it can step down the 240V AC power to 120V AC power via AC-AC conversion.

[0270] In one embodiment, the switching time between the disconnection of the external AC power supply and the power supply from the energy storage device 200 needs to be limited to a preset duration to ensure that the switching process does not affect the power output of the power output unit 140. In some embodiments, the switching time can be set to one or less from 25ms, 24ms, 23ms, 23ms, 22ms, 21ms, 20ms, 19ms, 18ms, 17ms, 16ms, 15ms, 14ms, 13ms, 12ms, 11ms, 10ms, 9ms, 8ms, 7ms, 6ms, 5ms, 4ms, 3ms, 2ms, and 1ms.

[0271] For example, the charging device 100 can provide uninterrupted power supply within 20ms. Specifically, the AC input terminal 131 is equipped with a power outage monitoring unit configured to monitor whether a power outage occurs at the AC input terminal 131. When the power outage monitoring unit detects a power outage, it sends a power outage message to the main control unit 1601. In response to the power outage message, the main control unit 1601 controls the energy storage device 200 to supply power to the power output unit 140, with a preset duration not exceeding 20ms. Specifically, the main control unit 1601 receives the power outage message at time t0, and controls the energy storage device 200 to supply power to the power output unit 140 at time t1, with a time difference between t0 and t1 not exceeding 20ms. Furthermore, the main control unit 1601 controls the energy storage device 200 to supply power to the power output unit 140 by activating either the first or third switching circuit.

[0272] Specifically, the power failure monitoring unit includes a rectifier circuit and a monitoring circuit. The rectifier circuit is configured to convert alternating current (AC) to direct current (DC), and the monitoring circuit is configured to monitor the voltage value of the DC current. For example, the monitoring circuit may include an electro-optical-electrical conversion circuit.

[0273] The electro-optical-electrical conversion circuit may include a matching light-emitting device and a photosensitive element. When AC power is continuously input to the AC input terminal 131, the AC power is continuously converted into DC power, and the light-emitting device in the electro-optical-electrical conversion circuit continuously emits light. This allows the photosensitive element to continuously conduct. When the AC input terminal 131 is de-energized, the light-emitting device stops emitting light, and no current flows through the photosensitive element. Therefore, when the monitoring circuit detects that the DC voltage is zero (i.e., no current flows through the photosensitive element), it determines that a power outage has occurred.

[0274] Furthermore, it can be set that a power outage is only confirmed when the photosensitive element has no current within a preset time, thereby avoiding false alarms. Specifically, the preset time is the duration of one cycle of the AC power input from AC input terminal 131. For example, if the AC power frequency is 50Hz, the preset time can be 20ms. Alternatively, the preset time can be the duration of half a cycle of the AC power input from AC input terminal 131. For example, if the AC power frequency is 50Hz, the preset time can be 10ms.

[0275] The charging device 100 can have functions such as battery undervoltage protection, battery overvoltage protection, and battery short circuit protection. Specifically, the default protection value for battery undervoltage protection is 40.0±0.5V. The default protection value for battery overvoltage protection is 59.5±0.5V. The default protection value for mains overvoltage protection is 264±3VAC. The default protection value for mains undervoltage protection is 85±3VAC. The default protection value for photovoltaic overvoltage protection is 150.0±1V. Photovoltaic reverse connection protection can prevent damage to the charging device 100. The default protection value for inverter output overvoltage protection is 138±3Vac, and it is locked and does not recover. The default protection value for inverter output undervoltage protection is 96±3Vac, and it is locked and does not recover. Inverter overload protection is set to overload protection greater than 105%, and it is locked and does not recover. Inverter short circuit protection is set to output short circuit protection, and it is locked and does not recover. The no-load loss of the charging device 100 can be less than 40W. The charging device 100 can operate at temperatures ranging from -20℃ to 40℃. The storage environment temperature can range from -40℃ to 60℃.

[0276] In one embodiment, see Figure 26 This specification provides a charging system. The charging system is adapted to the charging device 100 provided herein. The following exemplarily describes the connection wiring when the charging device 100 and the multi-functional vehicle 500 are connected. The charging device 100 and the multi-functional vehicle 500 are connected via a connecting cable.

[0277] Connect the detection line to the cable. The first end of the detection line is connected to the multi-functional vehicle 500, and the second end of the detection line is connected to the first detection circuit of the charging device 100.

[0278] The first detection circuit of the charging device 100 is configured to detect whether the multi-functional vehicle 500, the connecting cable, and the charging device 100 are successfully connected. The first detection circuit includes a vehicle charging access point (…). Figure 26 (as shown in M) and the vehicle charger detection point (for example, Figure 26 As shown in N or DET2), the vehicle charger access point is configured as the second end of the access detection line.

[0279] The main control unit 1601 of the charging device 100 is connected to the vehicle charger detection point and configured to acquire the voltage of the vehicle charger detection point. If the voltage at the vehicle charger detection point is the target voltage value, the connection of the multi-functional vehicle 500, the connecting cable, and the charging device 100 is confirmed to be complete.

[0280] Specifically, the first detection circuit of the charging device 100 includes a first charging detection power supply (e.g., +12V) and three vehicle charging resistors connected in series: a first vehicle charging resistor (e.g., resistor R5), a second vehicle charging resistor (e.g., resistor R6), and a third vehicle charging resistor (e.g., resistor R7). The first charging detection power supply is connected to the first vehicle charging resistor, and the third vehicle charging resistor is grounded. The vehicle charging connection point is located between the first and second vehicle charging resistors, and the vehicle charging detection point is located between the second and third vehicle charging resistors. As an example, the resistance values ​​of the first and second vehicle charging resistors can be the same and both 100kΩ, while the resistance value of the third vehicle charging resistor can be smaller, such as 27kΩ.

[0281] In addition, the first detection circuit includes a first vehicle charger diode (e.g., D2). The anode of the first vehicle charger diode is connected to a first charging detection power supply, and the cathode of the first vehicle charger diode is connected to a first vehicle charger resistor. The first vehicle charger diode can control the current flow direction and prevent current reverse flow.

[0282] Accordingly, the multi-functional vehicle 500 includes a second detection circuit. This second detection circuit includes a second charging detection power supply (e.g., +15V). When the multi-functional vehicle 500, the detection line, and the charging equipment 100 are connected, the second charging detection power supply provides voltage to the vehicle charging connection point via a first end and a second end of the detection line. It is understood that the voltage of the second charging detection power supply can be higher than the voltage of the first charging detection power supply, or it can be lower than the voltage of the first charging detection power supply. That is, the voltage of the second charging detection power supply simply needs to be different from the voltage of the first charging detection power supply.

[0283] Specifically, since the charging system is equipped with a first charging detection power supply and a second charging detection power supply, the main control unit 1601 is configured to determine whether the multi-functional vehicle 500, the connecting cable and the charging equipment 100 are connected and whether the multi-functional vehicle 500 is powered on based on the voltage value obtained from the vehicle charging detection point.

[0284] A first voltage value is obtained at the vehicle charger detection point to confirm that the multi-functional vehicle 500, connecting cable, and charging device 100 are connected and the multi-functional vehicle 500 is powered on. A second voltage value is obtained at the vehicle charger detection point to confirm that the multi-functional vehicle 500, connecting cable, and charging device 100 are connected and the multi-functional vehicle 500 is powered off. The target voltage value includes the first voltage value and the second voltage value. A third voltage value is obtained at the vehicle charger detection point to confirm that the multi-functional vehicle 500, connecting cable, and charging device 100 are not connected. For example, the first charging detection power supply provides a voltage of 12V, the second charging detection power supply provides a voltage of 15V, the first vehicle charging resistor (e.g., resistor R5) is 100kΩ, the second vehicle charging resistor (e.g., resistor R6) is 100kΩ, and the third vehicle charging resistor (e.g., resistor R7) is 27kΩ. When the vehicle charger detection point obtains 3.08V, it is confirmed that the multi-functional vehicle 500 is connected and powered on. When the car charger testing point receives 0.65V, it confirms that the multi-functional vehicle 500 is connected but not powered on. When the car charger testing point receives 1.36V, it confirms that the multi-functional vehicle 500 is not connected. The above data is for illustrative purposes only.

[0285] Furthermore, the main control unit 1601 is configured to charge the multi-functional vehicle 500 when the first voltage is obtained at the vehicle charger detection point. The aforementioned power circuit can be used to charge the multi-functional vehicle 500, and will not be described in detail here.

[0286] Furthermore, the second detection circuit of the multi-functional vehicle 500 may include a second charging detection power supply (e.g., +15V), a second vehicle charging diode (e.g., D1), a fourth vehicle charging resistor (e.g., resistor R1), a first cable connection point, and a second cable connection point (e.g., DET1). The second charging detection power supply is grounded via the second vehicle charging diode and the fourth vehicle charging resistor. The first cable connection point is connected between the second vehicle charging diode and the fourth vehicle charging resistor, and the first cable connection point and the second cable connection point are disconnected. At this time, the second cable connection point is at a low level.

[0287] Correspondingly, the first end of the detection line includes a first connection end and a second connection end that are shorted. When the detection line is connected to the multi-functional vehicle 500, the first connection end is connected to the first cable access point, and the second connection end is connected to the second cable access point, thereby realizing the electrical connection between the first cable access point and the second cable access point. At this time, the second cable access point is at a high level.

[0288] The second cable access point is connected to the battery management system of the multi-functional vehicle 500, and when the battery management system detects that the level of the second cable access point changes from low to high, it determines that the detection line is successfully connected to the multi-functional vehicle 500.

[0289] Furthermore, the second detection circuit includes a voltage divider circuit connected between the second cable access point and the second connection terminal, configured to protect the battery management system. Specifically, the voltage divider circuit may include resistors R2, R3, and R4, with resistors R3 and R4 connected in series and grounded. One end of resistor R2 is connected between resistors R3 and R4, and the other end is connected to the second cable access point.

[0290] In one possible example, the detection line includes a switch connected between a first connection terminal and a second connection terminal, which short-circuits the first and second connection terminals when the switch is on. This switch prevents short circuits other than those between the first and second connection terminals.

[0291] The switch can be equipped with a corresponding hardware switch on the charging gun head. When the charging gun head needs to be connected to the multi-functional vehicle 500, the user needs to press the hardware switch to establish the connection. Simultaneously, when the user presses the hardware switch, the switch connecting the first and second connection terminals is activated.

[0292] In another possible example, the detection circuit of the charging device 100 includes a third charging detection power supply (e.g., +3.3V), a third cable access point (e.g., DET3), and a fourth cable access point. The third cable access point is connected to the third charging detection power supply and the main control unit 1601, respectively. The fourth cable access point is grounded, and the third and fourth cable access points are open-circuited.

[0293] The second end of the detection line includes a short-circuited third connection terminal and a fourth connection terminal. The third connection terminal is connected to the third cable access point, and the fourth connection terminal is connected to the fourth cable access point. When the connection cable is connected to the charging device 100, the third connection terminal and the fourth connection terminal are short-circuited to ground the third charging detection power supply.

[0294] The main control unit 1601 is configured to acquire the voltage at the third cable access point, and determine that the charging device 100 is successfully connected to the connecting cable when the voltage at the third cable access point is zero (i.e., the third and fourth connection terminals are short-circuited to ground the third charging detection power supply). Furthermore, the detection circuit of the charging device 100 includes a fifth charging resistor (e.g., resistor R8) connected between the third charging detection power supply and the third cable access point. The fifth charging resistor is configured to prevent excessive instantaneous current at the third cable access point.

[0295] In one embodiment, the detection line includes a communication line configured to transmit RS485 protocol information. It is understood that the communication line may also support protocols such as CAN-H, CAN-L, 0V, S1, P1, C1, O1, and 5V. The communication line may include two lines, designated A_IN and B_IN.

[0296] The testing line includes a charging cable, through which the charging device 100 charges the multi-functional vehicle 500. The charging cable may include two cables, designated B+ and B-.

[0297] This is understandable; please refer to [link / reference]. Figure 27 The multi-functional vehicle 500 mentioned in this manual may include garden work vehicles and ride-on lawnmowers, etc.

[0298] As an example, the multi-functional vehicle 500 includes: a frame 13, a working system 15 connected to the frame 13, a power system 18 for supplying power to the working system 15, a charging interface 20, and a power management system (BMS).

[0299] The frame 13 extends at least partially in a direction parallel to the front-rear direction, and a support assembly 14 may be provided on the frame 13. The support assembly 14 may include at least one of a seat or a standing platform; the figure only shows an example of the support assembly 14 including a seat. The seat or standing platform is used for work involving sitting or standing. That is, the multi-functional vehicle can provide a riding-style working mode or a standing-style working mode. Furthermore, the structure of the seat and the standing platform can be flexibly switched, that is, the working mode of the multi-functional vehicle can be flexibly switched between a riding-style working mode and a standing-style working mode according to the actual needs of the user. A hand-held operating component may also be provided on the frame 13, and based on the hand-held operating component, the multi-functional vehicle can also provide a push-style working mode.

[0300] The working system 15 includes a power output assembly 16 and a walking drive assembly 17. The power output assembly 16 includes an output element for outputting power to achieve a specific function. In some alternative embodiments, the power output assembly 16 is a mowing element for performing a lawn mowing function. The power output assembly 16 is also connected to the frame 13. The power output assembly 16 also includes a first drive motor for driving the mowing element to rotate at high speed, and control circuitry corresponding to the first drive motor.

[0301] The power output component 16 may include one or more mowing elements. Correspondingly, the number of first drive motors may correspond to the number of mowing elements. For example, in some embodiments, the mowing element may be a single blade, and the corresponding number of first drive motors may also be set to a single blade. In some specific embodiments, the control circuit of the first drive motor includes a control chip, such as an MCU or ARM. In some optional embodiments, the power output component 16 is a sweeping element used to provide cleaning power. The power output component 16 also includes a first drive motor for driving the sweeping element, and a control circuit corresponding to the first drive motor. It is understood that in some optional embodiments, the power output component 16 may be replaced with other functional components, such as snow sweeping, snow blowing, snow shoveling, or flushing components. Those skilled in the art should be able to adapt various functional components without creative effort, and all of the above should be included within the protection scope of this embodiment.

[0302] A driving assembly 17 is used to enable a multi-functional vehicle to move within landscaped areas such as lawns, gardens, and fences. The driving assembly 17 includes at least driving wheel elements and second drive motors for driving the driving wheel elements. Multiple driving wheel elements may be provided, and the number of second drive motors corresponds to the number of driving wheel elements. In some alternative embodiments, the driving assembly 17 includes a first driving wheel, a second driving wheel, and two corresponding second drive motors. When the two second drive motors drive the corresponding driving wheel to rotate at different power levels, a speed difference is generated between the first and second driving wheels, thereby enabling the multi-functional vehicle to steer. In some embodiments, the driving assembly 17 further includes a driving controller for controlling the second drive motors.

[0303] The working system 15 serves as a load in the multi-functional vehicle, and the power supply system 18 supplies power to the load. Specifically, the power supply system 18 supplies power to at least the first drive motor in the power output assembly 16 and the second drive motor in the travel drive assembly 17. The power supply system 18 can also supply power to other electronic components in the multi-functional vehicle, such as the control circuit corresponding to the first drive motor in the power output assembly 16 and the driving controller corresponding to the second drive motor in the travel drive assembly 17.

[0304] Please see Figure 27 The power system 18 is mounted on the frame 13 and is detachably connected to the frame 13. A charging port 20 is provided on the power system 18. As an example, the charging port 20 is located on the side of the power system 18 opposite to the support assembly 14.

[0305] The power system 18 includes multiple removable battery units 19, which can be easily removed and installed without tools. Those skilled in the art will understand that the multiple battery units 19 can also be fixedly packaged within the power system 18.

[0306] Multiple battery cells 19 can be selected from at least one of a first-specification battery pack and a second-specification battery pack. The differences between the first-specification battery pack and the second-specification battery pack include, but are not limited to, differences in battery pack capacity, voltage, battery internal resistance, weight, size, energy density, cell type, charge information, and battery health status information.

[0307] In some alternative embodiments, the difference between the first-specification battery pack and the second-specification battery pack lies in their battery pack capacities. The first-specification battery pack has a larger capacity than the second-specification battery pack. The first-specification battery pack can be used to power large electrical equipment, such as large chainsaws, large angle grinders, push lawnmowers, smart lawnmowers, push snowplows, self-propelled snowplows, high-power electric hammers, high-power electric picks, high-power circular saws, high-power concrete cutters, electric bicycles, electric motorcycles, high-power air compressors, high-power cleaning machines, etc. The first-specification battery pack can also be used as an energy storage device to power other electrical equipment or to charge other battery packs. The second-specification battery pack is configured to power handheld garden tools. For example, the second-specification battery pack can power garden tools such as lawnmowers, pruning machines, hair dryers, and chainsaws. In addition, the second-specification battery pack can also power torque-output tools such as electric drills and hammer drills; sawing tools such as circular saws, jigsaws, and reciprocating saws; or grinding tools such as angle grinders and sanders.

[0308] In some alternative embodiments, the difference between the first-specification battery pack and the second-specification battery pack lies in the type of battery cells used. For example, the first-specification battery pack and the second-specification battery pack can respectively use lithium iron phosphate cells and ternary lithium cells. The multiple battery units 19 in the power system 18 can also be nickel-cadmium battery cells, lead-acid battery cells, graphene cells, etc.

[0309] The power unit's multiple battery units 19 are selected from at least one of the first-specification battery pack and the second-specification battery pack. This allows the multi-functional vehicle to be compatible with different specifications of battery packs, meeting the needs of high-power operation while also being compatible with handheld electric garden tools, making the work methods of garden workers more flexible.

[0310] The structure of gardening vehicles and ride-on lawnmowers can be referred to in the above description of multi-functional vehicles, and will not be repeated here.

[0311] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.

Claims

1. A charging system, characterized by, The utility model relates to: A multi-functional vehicle, a connecting cable and a charging device, the connecting cable is configured to connect the multi-functional vehicle and the charging device; The connecting cable is provided with a detection line, a first end of the detection line is connected to the multi-functional vehicle, and a second end of the detection line is connected to a first detection circuit of the charging device; The first detection circuit of the charging device is configured to detect whether the multi-functional vehicle, the connecting cable and the charging device are connected, the first detection circuit comprises a vehicle-charging access point and a vehicle-charging detection point, the vehicle-charging access point is configured to access the second end of the detection line; The charging device is provided with a master control unit connected to the vehicle-charging detection point, configured to obtain the voltage of the vehicle-charging detection point, and in the case that the voltage of the vehicle-charging detection point is a target voltage value, it is determined that the multi-functional vehicle, the connecting cable and the charging device are connected.

2. The charging system of claim 1, wherein, The first detection circuit of the charging device comprises a first charging detection power supply and three first vehicle-charging resistors, second vehicle-charging resistors and third vehicle-charging resistors connected in series, the first charging detection power supply is connected to the first vehicle-charging resistor, and the third vehicle-charging resistor is grounded; The vehicle-charging access point is located between the first vehicle-charging resistor and the second vehicle-charging resistor, and the vehicle-charging detection point is located between the second vehicle-charging resistor and the third vehicle-charging resistor.

3. The charging system of claim 2, wherein, The first detection circuit comprises a first vehicle-charging diode, the anode of the first vehicle-charging diode is connected to the first charging detection power supply, and the cathode of the first vehicle-charging diode is connected to the first vehicle-charging resistor.

4. The charging system of claim 2, wherein, The multi-functional vehicle comprises a second detection circuit comprising a second charging detection power supply, in the case that the multi-functional vehicle, the detection line and the charging device are connected, the second charging detection power supply provides voltage to the vehicle-charging access point through the first end of the detection line and the second end of the detection line. The master control unit is configured to determine whether the multi-functional vehicle, the connecting cable and the charging device are connected based on the voltage obtained by the vehicle-charging detection point, and whether the multi-functional vehicle is powered on.

5. The charging system of claim 4, wherein, The master control unit is configured to: In the case that a first voltage value is obtained by the vehicle-charging detection point, it is determined that the multi-functional vehicle, the connecting cable and the charging device are connected and the multi-functional vehicle is powered on; In the case that a second voltage value is obtained by the vehicle-charging detection point, it is determined that the multi-functional vehicle, the connecting cable and the charging device are connected and the multi-functional vehicle is powered off, the target voltage value comprises the first voltage value and the second voltage value; In the case that a third voltage value is obtained by the vehicle-charging detection point, it is determined that the multi-functional vehicle, the connecting cable and the charging device are not connected.

6. The charging system of claim 5, wherein, The master control unit is configured to charge the multi-functional vehicle when the first voltage is obtained by the vehicle-charging detection point.

7. The charging system of claim 4, wherein, The voltage of the first charging detection power supply is greater than the voltage of the second charging detection power supply.

8. The charging system of claim 1, wherein, The multifunctional vehicle comprises a second detection circuit, the second detection circuit comprises a second charging detection power supply, a second vehicle charging diode, a fourth vehicle charging resistor, a first cable access point and a second cable access point, the second charging detection power supply is grounded via the second vehicle charging diode and the fourth vehicle charging resistor, the first cable access point is connected between the second vehicle charging diode and the fourth vehicle charging resistor, and the first cable access point and the second cable access point are open circuits; A first end of the detection line comprises a first connection end and a second connection end which are short-circuited, when the detection line is connected to the multifunctional vehicle, the first connection end is connected to the first cable access point, and the second connection end is connected to the second cable access point; The second cable access point is connected to a battery management system of the multifunctional vehicle, and when the battery management system detects that the level of the second cable access point changes from a low level to a high level, it is determined that the connection of the detection line to the multifunctional vehicle is completed.

9. The charging system of claim 8, wherein, The second detection circuit comprises a voltage dividing circuit connected between the second cable access point and the second connection end, configured to protect the battery management system.

10. The charging system of claim 8, wherein, The detection line comprises a switch connected between the first connection end and the second connection end, when the switch is turned on, the first connection end and the second connection end are short-circuited.

11. The charging system of claim 1, wherein, The detection circuit of the charging device comprises a third charging detection power supply, a third cable access point and a fourth cable access point, the third cable access point is connected to the third charging detection power supply and the master control unit respectively, the fourth cable access point is grounded, and the third cable access point and the fourth cable access point are open circuits; A second end of the detection line comprises a third connection end and a fourth connection end which are short-circuited, the third connection end is matched with the third cable access point, and the fourth connection end is matched with the fourth cable access point; The master control unit is configured to obtain the voltage of the third cable access point, and in the case that the voltage of the third cable access point is zero, it is determined that the connection of the charging device to the connection cable is completed.

12. The charging system of claim 11, wherein, The detection circuit of the charging device comprises a fifth vehicle charging resistor connected between the third charging detection power supply and the third cable access point.

13. The charging system of claim 1, wherein, The detection line comprises a communication line configured to transmit RS485 protocol information. The detection line comprises a charging line, and the charging device charges the multifunctional vehicle via the charging line.

14. The charging system of claim 1, wherein, The charging device comprises: a body forming a containing portion; a storage device detachably accommodated in the containing portion; a power input portion provided on the surface of the body and configured to access an external power supply, the power input portion being electrically connected to the storage device, the power input portion comprising a direct current input end and an alternating current input end; a power output portion provided on the surface of the body and configured to connect to an external load, the power output portion being electrically connected to the power input portion and the storage device, the power output portion comprising a first direct current output end and a first alternating current output end, the first direct current output end comprising at least a vehicle charging output end, and the vehicle charging output end having the first detection circuit; The master control unit is configured to connect the energy storage device, the power input unit and the power output unit, control the external power supply to supply power to the energy storage device, and control the energy storage device or the external power supply to supply power to the power output unit.

15. A charging system, characterized by The application relates to a garden working vehicle, a connecting cable and a charging device. The connecting cable is provided with a detection line, a first end of the detection line is connected to the garden working vehicle, and a second end of the detection line is connected to a first detection circuit of the charging device. The first detection circuit of the charging device is configured to detect whether the garden working vehicle, the connecting cable and the charging device are connected, and the first detection circuit comprises a vehicle-charging access point and a vehicle-charging detection point. The charging device is provided with a master control unit connected to the vehicle-charging detection point, configured to acquire the voltage of the vehicle-charging detection point, and determine that the garden working vehicle, the connecting cable and the charging device are connected when the voltage of the vehicle-charging detection point is a target voltage value. The application relates to a riding mower, a connecting cable and a charging device.

16. A charging system characterized by, The connecting cable is provided with a detection line, a first end of the detection line is connected to the riding mower, and a second end of the detection line is connected to a first detection circuit of the charging device. The first detection circuit of the charging device is configured to detect whether the riding mower, the connecting cable and the charging device are connected, and the first detection circuit comprises a vehicle-charging access point and a vehicle-charging detection point. The charging device is provided with a master control unit connected to the vehicle-charging detection point, configured to acquire the voltage of the vehicle-charging detection point, and determine that the riding mower, the connecting cable and the charging device are connected when the voltage of the vehicle-charging detection point is a target voltage value. ​ ​

Images