Charging circuit and energy storage device

Abstract

The utility model discloses a charging circuit and an energy storage device. The charging circuit is used for charging an energy storage group and comprises a first charging interface; a second charging interface; the first charging interface and the second charging interface are jointly connected with the first charging module, and the first charging interface and the second charging interface charge the energy storage group through the first charging module. According to the charging circuit provided by the utility model, the two charging interfaces share the first charging module, so that the number of required charging modules can be reduced, the cost is saved, and the size is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging technical field more specifically, relate to a kind of charging circuit and energy storage equipment. BACKGROUND

[0002] In the related art, in order to meet different charging scenarios, the starting power supply has multiple charging modes, resulting in high cost and large size of the starting power supply. SUMMARY

[0003] The utility model embodiment provides a kind of charging circuit and energy storage equipment.

[0004] The utility model embodiment provides a kind of charging circuit, the charging circuit is used to charge energy storage group, the charging circuit includes:

[0005] First charging interface;

[0006] Second charging interface;

[0007] First charging module, the first charging interface and the second charging interface are connected with the first charging module, and the first charging interface and the second charging interface charge the energy storage group by the first charging module.

[0008] Therefore, the charging circuit and energy storage equipment of the utility model embodiment can reduce the number of required charging modules, save cost and reduce size by sharing the first charging module for the two charging interfaces.

[0009] In some embodiments, the first charging interface includes a DC charging interface, the second charging interface includes a solar charging interface, and the first charging module includes a DC charging module.

[0010] Therefore, the DC charging interface and the solar charging interface are connected to the DC charging module, so that the DC charging module does not need to be designed and equipped separately, simplifying the circuit structure.

[0011] In some embodiments, the DC charging interface includes a DC outlet.

[0012] In some embodiments, the solar charging interface includes an Anderson charging interface.

[0013] Therefore, the DC outlet and the Anderson charging interface can be connected to the DC charging module to charge the energy storage group.

[0014] In some embodiments, the direct current charging module comprises a voltage regulating charging module, which is configured to convert the first charging voltage input by the first charging interface or the second charging voltage input by the second charging interface into a charging voltage capable of charging the energy storage group.

[0015] In this way, the first charging voltage or the second charging voltage can be converted into a charging voltage capable of charging the energy storage group by the voltage regulating charging module, thereby ensuring normal charging of the energy storage group.

[0016] In some embodiments, the charging circuit further comprises:

[0017] a switching module connected to the first charging interface, the second charging interface and the first charging module; when the switching module is turned on, the first charging interface or the second charging interface is in communication with the first charging module to charge the energy storage group.

[0018] In this way, the first charging interface or the second charging interface can be controlled to be in communication with the first charging module by the switching module, thereby controlling the first charging interface or the second charging interface to charge the energy storage group, so as to achieve control of multiple charging interfaces.

[0019] In some embodiments, the charging circuit further comprises:

[0020] a control module connected to the switching module and configured to control the switching module to be turned on, so as to control the first charging interface or the second charging interface to be in communication with the first charging module.

[0021] In this way, the switching module can be controlled to be turned on by the control module, thereby controlling the first charging interface to be in communication with the first charging module or controlling the second charging interface to be in communication with the first charging module.

[0022] In some embodiments, the switching module comprises a first switching module and a second switching module, the first switching module is connected to the first charging interface and the first charging module, the second switching module is connected to the second charging interface and the first charging module, and the control module is configured to control the first switching module to be turned on and / or the second switching module to be turned on, so as to control the first charging interface or the second charging interface to be in communication with the first charging module.

[0023] In this way, the first charging interface can be controlled to be in communication with the first charging module and the second charging interface can be controlled to be in communication with the first charging module by the first switching module and the second switching module respectively, and the first charging interface and the second charging interface are respectively provided with switching modules for control, which can reduce error control.

[0024] In some embodiments, the control module is configured to control the switch module to be turned on to control the first charging interface to be in communication with the first charging module when the first charging interface inputs the first voltage, control the switch module to be turned on to control the second charging interface to be in communication with the first charging module when the second charging interface inputs the second voltage, and control the switch module to be turned on according to a preset priority to control the first charging interface or the second charging interface to be in communication with the first charging module when the first charging interface inputs the first voltage and the second charging interface inputs the second voltage.

[0025] In this way, when the first charging interface inputs the first voltage or the second charging interface inputs the second voltage, the first charging interface and the second charging interface are determined to be turned on, and at this time, the first switch module or the second switch module is controlled to be turned on to connect the charging interface and the first charging module, so as to realize the charging of the energy storage group by the charging interface. In addition, when the first charging interface and the second charging interface are turned on at the same time, the switch module is controlled to be turned on according to the preset priority, so as to avoid the two charging interfaces from charging the energy storage group at the same time.

[0026] In some embodiments, the preset priority includes: giving priority to a preset charging interface, the preset charging interface being the first charging interface or the second charging interface; or giving priority to the charging interface that inputs the voltage first among the first charging interface and the second charging interface.

[0027] In this way, the switch module is controlled to be turned off according to the preset priority, so as to avoid the two charging interfaces from charging the energy storage group at the same time.

[0028] In some embodiments, the second charging interface includes a solar charging interface, and the preset priority includes giving priority to the solar charging interface, and when the first charging interface inputs the first voltage and the solar charging interface inputs the second voltage, the control module is configured to control the switch module to be turned on to control the solar charging interface and the first charging module to be in communication.

[0029] In this way, by setting the solar charging interface as the priority, the electric energy converted by the solar energy can be preferentially charged, and the utilization of new energy is improved.

[0030] In some embodiments, the charging circuit further includes:

[0031] The first charging interface detection module is connected to the first charging interface and the control module, and the control module can be configured to detect whether the first charging interface inputs the first voltage through the first charging interface detection module.

[0032] a second charging interface detection module, the second charging interface detection module connecting the second charging interface and the control module, the control module being capable of detecting whether the first charging interface inputs the second voltage through the second charging interface detection module.

[0033] In this way, the first charging interface detection module can detect whether the first interface inputs the first voltage, and the second charging interface detection module can detect whether the second interface inputs the second voltage.

[0034] In some embodiments, the first charging interface detection module comprises at least one of a comparator, a voltage dividing circuit, and a MOS tube; and the second charging interface detection module comprises at least one of a comparator, a voltage dividing circuit, and a MOS tube.

[0035] In this way, the first charging interface detection module and the second charging detection module are at least one of a comparator, a voltage dividing circuit, and a MOS tube, so that the first charging interface detection module and the second charging detection module can detect the input voltage of the charging interface.

[0036] In some embodiments, the charging circuit further comprises:

[0037] a power supply module, the power supply module connecting the energy storage group, the power supply module being configured to adjust the output voltage output by the energy storage group to a preset voltage to provide power to the control module.

[0038] In this way, the power supply module can adjust the output voltage of the energy storage group to a preset voltage value and provide power to the control module.

[0039] In some embodiments, the charging circuit further comprises:

[0040] a third charging interface;

[0041] a second charging module, the third charging interface charging the energy storage group through the second charging module.

[0042] In this way, the second charging module and the third charging interface can provide a new charging method for the energy storage group, and the charging voltage of the third charging interface can be different from that provided by the first charging interface and the second charging interface.

[0043] In some embodiments, the third charging interface comprises an alternating current charging interface, and the second charging module comprises an alternating current charging module.

[0044] In this way, an independent alternating current charging interface is provided for alternating current charging, and a corresponding alternating current charging module is provided, so that the energy storage group can be charged with alternating current.

[0045] The utility model discloses an energy storage device, the energy storage device includes shell and above any one implementation mode's charging circuit, energy storage group, charging circuit and energy storage group set up in the shell.

[0046] In certain embodiments, the energy storage group includes a chargeable and dischargeable battery, the chargeable and dischargeable battery includes at least one of lithium ion battery, sodium battery, the lithium ion battery includes at least one of lithium iron phosphate battery, ternary lithium battery, lithium cobaltate battery.

[0047] In certain embodiments, the energy storage device further includes an output interface, the output interface includes one or more, the output interface includes at least one of USB interface, alternating current socket, emergency starting power output interface.

[0048] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0049] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0050] Figure 1 It is the schematic diagram of charging circuit and energy storage group of the utility model embodiment;

[0051] Figure 2 It is the schematic diagram of control module of the utility model embodiment;

[0052] Figure 3 It is the schematic diagram of first charging interface detection module of the utility model embodiment;

[0053] Figure 4 It is the schematic diagram of second charging interface detection module of the utility model embodiment;

[0054] Figure 5 It is the schematic diagram of power supply module of the utility model embodiment;

[0055] Figure 6 It is the schematic diagram of third charging interface, second charging module and energy storage group of the utility model embodiment;

[0056] Figure 7 It is the schematic diagram of energy storage module of the utility model embodiment. DETAILED DESCRIPTION

[0057] Embodiments of the present application will be described in detail below, the reference numerals of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0058] In the related art, in order to meet different charging scenarios, the starting power supply has multiple charging modes, resulting in high cost and large size of the starting power supply.

[0059] Referring to Figure 1 The charging circuit 100 is used to charge the energy storage group 200, and the charging circuit 100 comprises a first charging interface 10, a second charging interface 20 and a first charging module 30. The first charging interface 10 and the second charging interface 20 are connected to the first charging module 30, and the first charging interface 10 and the second charging interface 20 charge the energy storage group 200 through the first charging module 30.

[0060] Specifically, in the related art, the multiple charging modes of the starting power supply need to be respectively configured with different charging modules for adaptation, resulting in a relatively complex charging module and a large size of the starting power supply.

[0061] The first charging interface 10 and the second charging interface 20 are connected to the first charging module 30, and the first charging interface 10 and the second charging interface 20 charge the energy storage group 200 through the first charging module 30, so that the first charging interface 10 and the second charging interface 20 do not need to be respectively designed with charging modules, the reuse of the first charging module 30 is realized, and the structure of the charging circuit 100 is simplified.

[0062] The energy storage group 200 comprises a battery group, and the first charging interface 10 and the second charging interface 20 can charge the battery group through the first charging module 30.

[0063] The charging modes of the first charging interface 10 and the second charging interface 20 are the same, for example, the first charging interface 10 and the second charging interface 20 are both used to input a direct current voltage to charge the energy storage group 200 in direct current.

[0064] In this way, the two charging interfaces share the first charging module 30, which can reduce the number of required charging modules, save costs and reduce the size.

[0065] Referring to Figure 1 In some embodiments, the first charging interface 10 comprises a DC charging interface, the second charging interface 20 comprises a solar charging interface 21, and the first charging module 30 comprises a direct current charging module.

[0066] Specifically, the first charging interface 10 and the second charging interface 20 can both be DC charging interfaces 11. The first charging interface 10 can be a DC charging interface 11 for connecting a DC charger or a cigarette lighter; the second charging interface 20 can be a solar charging interface 21 that can be used for solar charging; the first charging module 30 includes a DC charging module. The DC charging interface and the solar charging interface 21 are both DC charging, and can share one charging module to save the number of charging modules and simplify the circuit structure. Therefore, the DC charging interface and the solar charging interface 21 are both connected to the DC charging module and can both charge the energy storage group 200 through the DC charging module.

[0067] In this way, the DC charging interface and the solar charging interface 21 are both connected to the DC charging module, so that the DC charging module does not need to be designed and equipped separately, and the circuit structure is simplified.

[0068] In some embodiments, the DC charging interface includes a DC outlet.

[0069] In some embodiments, the solar charging interface 21 includes an Anderson charging interface.

[0070] Specifically, the Anderson charging interface can be used to connect the energy storage group 200 and a solar panel, and the electrical energy generated by the solar panel can charge the energy storage group 200 through the Anderson charging interface and the DC charging module.

[0071] In this way, the DC outlet and the Anderson charging interface can both connect the DC charging module to charge the energy storage group 200.

[0072] Please refer to Figure 1 In some embodiments, the DC charging module includes a voltage regulating charging module 31, which is used to convert the first charging voltage input by the first charging interface 10 or the second charging voltage input by the second charging interface 20 into a charging voltage that can charge the energy storage group 200.

[0073] Specifically, the voltage regulating charging module 31 is connected to the first charging interface 10 and the second charging interface 20. If the first charging voltage input by the first charging interface 10 and the second charging voltage input by the second charging interface 20 do not match the charging voltage of the energy storage group 200, it can cause charging failure or damage to the energy storage group 200, so the voltage regulating charging module 31 is provided to convert the first charging voltage or the second charging voltage into a charging voltage that can charge the energy storage group 200, so as to achieve normal charging of the energy storage group 200.

[0074] In this way, through the voltage regulating charging module 31, the first charging voltage or the second charging voltage can be converted into a charging voltage that can charge the energy storage group 200, thereby ensuring normal charging of the energy storage group 200.

[0075] Referring to Figure 1 In some embodiments, the charging circuit 100 further comprises a switch module 40 connected to the first charging interface 10, the second charging interface 20 and the first charging module 30; when the switch module 40 is turned on, the first charging interface 10 or the second charging interface 20 is in communication with the first charging module 30 to charge the energy storage group 200.

[0076] Specifically, the switch module 40 can comprise a circuit composed of a switching device such as a relay or a switch tube. The switch module 40 is connected to the first charging interface 10, the second charging interface 20 and the first charging module 30, and when the switch module 40 is turned on, the first charging interface 10 is in communication with the first charging module 30, or the second charging interface 20 is in communication with the first charging module 30 to charge the energy storage group 200.

[0077] In one embodiment, the first charging interface 10 is a DC socket, and the first charging module 30 is a DC charging module. When the switch module 40 is turned on, the switch module 40 connects the DC socket and the DC charging module, and the DC socket charges the energy storage group 200 through the DC charging module.

[0078] In this way, the first charging interface 10 or the second charging interface 20 can be controlled to be in communication with the first charging module 30 through the switch module 40, so as to control the first charging interface 10 or the second charging interface 20 to charge the energy storage group 200, thereby achieving control over multiple charging interfaces.

[0079] Referring to Figure 2 In some embodiments, the charging circuit 100 further comprises a control module 50 connected to the switch module 40 and configured to control the switch module 40 to be turned on to control the first charging interface 10 or the second charging interface 20 to be in communication with the first charging module 30.

[0080] Specifically, the control module 50 is connected to the switch module 40 and outputs a control signal to the switch module 40 to control the switch module 40 to be turned on. When the switch module 40 is turned on, the first charging interface 10 or the second charging interface 20 is in communication with the first charging module 30 to charge the energy storage group 200. The control module 50 can output control signals of different levels to the switch module 40 respectively to control the first charging interface 10 to be in communication with the first charging module 30 or control the second charging interface 20 to be in communication with the first charging module 30.

[0081] For example, when the control module 50 outputs a high level, the switch module 40 is turned on to make the first charging interface 10 communicate with the first charging module 30; when the control module 50 outputs a low level, the switch module 40 is turned on to make the second charging interface 20 communicate with the first charging module 30.

[0082] The control module 50 can be an MCU (Microcontroller Unit), an FPGA (Field Programmable Gate Array), or the like.

[0083] In this way, the switch module 40 can be controlled by the control module 50 to be turned on, so as to control the first charging interface 10 to communicate with the first charging module 30 or control the second charging interface 20 to communicate with the first charging module 30.

[0084] Please refer to Figure 1 In some embodiments, the switch module 40 includes a first switch module 41 and a second switch module 42, the first switch module 41 is connected to the first charging interface 10 and the first charging module 30, the second switch module 42 is connected to the second charging interface 20 and the first charging module 30, and the control module 50 is configured to control the first switch module 41 to be turned on and / or the second switch module 42 to be turned on, so as to control the first charging interface 10 or the second charging interface 20 to communicate with the first charging module 30.

[0085] Specifically, the first switch module 41 and the second switch module 42 can be independent of each other, the first switch module 41 is connected to the first charging interface 10 and the first charging module 30, and the second switch module 42 is connected to the second charging interface 20 and the first charging module 30. The control module 50 can output a first control signal to control the first switch module 41 to be turned on, so as to control the first charging interface 10 to communicate with the first charging module 30; and can output a second control signal to control the second switch module 42 to be turned on, so as to control the second charging interface 20 to communicate with the first charging module 30.

[0086] In this way, the first charging interface 10 and the first charging module 30 can be controlled to communicate by the first switch module 41, and the second charging interface 20 and the first charging module 30 can be controlled to communicate by the second switch module 42. By setting the switch module 40 for the first charging interface 10 and the second charging interface 20 respectively, the error control can be reduced.

[0087] In some embodiments, the control module 50 is configured to control the switch module 40 to be turned on to control the first charging interface 10 to be in communication with the first charging module 30 when the first charging interface 10 inputs the first voltage, to control the second charging interface 20 to be in communication with the first charging module 30 when the second charging interface 20 inputs the second voltage, and to control the switch module 40 to be turned on according to a preset priority to control the first charging interface 10 or the second charging interface 20 to be in communication with the first charging module 30 when the first charging interface 10 inputs the first voltage and the second charging interface 20 inputs the second voltage.

[0088] Specifically, the first voltage and the second voltage are in a range of 12V to 50V. The control module 50 is connected to the first switch module 41 and the second switch module 42 and outputs control signals to the first switch module 41 and the second switch module 42, respectively, to control the first switch module 41 and the second switch module 42 to be turned on.

[0089] In one embodiment, the first charging interface 10 inputs the first voltage, the control module 50 outputs the first control signal DC_CH_EN as a first level, and Q3 of the first switch module 41 receives the first level, so that Q1 and Q2 of the first switch module 41 are turned on.

[0090] In another embodiment, the second charging interface 20 inputs the second voltage, the control module 50 outputs the second control signal SA_CH_EN as a first level, and Q6 of the second switch module 42 receives the first level, so that Q4 and Q5 of the second switch module 42 are turned on to connect the second charging interface 20 and the first charging module 30.

[0091] Further, to avoid the first charging interface 10 and the second charging interface 20 charging the energy storage group 200 at the same time, the switch module 40 is controlled to be turned on according to the preset priority when the first charging interface 10 inputs the first voltage and the second charging interface 20 inputs the second voltage.

[0092] In this way, when the first charging interface 10 inputs the first voltage or the second charging interface 20 inputs the second voltage, it is determined that the first charging interface 10 and the second charging interface 20 are connected, and at this time, the first switch module 41 or the second switch module 42 is controlled to be turned on to connect the charging interface and the first charging module 30, so as to realize charging of the energy storage group 200 by the charging interface. In addition, when the first charging interface 10 and the second charging interface 20 are connected at the same time, the switch module 40 is controlled to be turned on according to the preset priority to avoid the two charging interfaces charging the energy storage group 200 at the same time.

[0093] In some embodiments, the preset priority comprises: prioritizing the preset charging interface, the preset charging interface being the first charging interface 10 or the second charging interface 20; or prioritizing the charging interface with the first voltage input among the first charging interface 10 and the second charging interface 20.

[0094] Specifically, in one embodiment, the preset charging interface is the solar charging interface 21, i.e., the preset priority sets the priority of the solar charging interface 21 to be higher than that of the direct current charging interface 11, and thus in the case that the direct current charging interface 11 inputs the first voltage and the solar charging interface 21 inputs the second voltage, the solar charging interface 21 is turned on.

[0095] In another embodiment, the preset priority sets the priority of the charging interface that is turned on first. Thus, if the first charging interface 10 is turned on first and inputs the first voltage, and the second charging interface 20 is turned on later and inputs the second voltage, the control module 50 controls the first switch module 41 to be turned on while controlling the second switch module 42 to be maintained in the off state. At this time, the first charging interface 10 and the first charging module 30 are in communication, and the first charging interface 10 charges the energy storage group 200.

[0096] In this way, the switch module 40 is controlled to be turned off according to the preset priority, which can avoid the two charging interfaces from charging the energy storage group 200 at the same time.

[0097] In some embodiments, the second charging interface 20 comprises the solar charging interface 21, and the preset priority comprises prioritizing the solar charging interface 21, and in the case that the first charging interface 10 inputs the first voltage and the solar charging interface 21 inputs the second voltage, the control module 50 is configured to control the solar charging interface 21 and the first charging module 30 to be in communication by controlling the switch module 40 to be turned on.

[0098] Specifically, since the solar charging interface 21 is connected to a solar panel, the solar charging interface 21 can be charged by using the electrical energy converted by the solar panel, which is more environmentally friendly. Thus, in the case that the first charging interface 10 inputs the first voltage and the solar charging interface 21 inputs the second voltage, the control module 50 maintains the first switch module 41 in the off state and controls the second switch module 42 to be turned on, so as to control the solar charging interface 21 and the first charging module 30 to be in communication.

[0099] In this way, by setting the priority of the solar charging interface 21, the electrical energy converted by the solar charging interface 21 can be charged preferentially, which improves the utilization of new energy.

[0100] Please refer to Figure 3 and Figure 4In some embodiments, the charging circuit 100 further comprises a first charging interface detection module 60 and a second charging interface detection module 70, the first charging interface detection module 60 is connected to the first charging interface 10 and the control module 50, and the control module 50 is configured to detect whether the first charging interface 10 inputs the first voltage through the first charging interface detection module 60; the second charging interface detection module 70 is connected to the second charging interface 20 and the control module 50, and the control module 50 is configured to detect whether the first charging interface 10 inputs the second voltage through the second charging interface detection module 70.

[0101] Specifically, the first charging interface detection module 60 is configured to detect the input voltage of the first charging interface 10, and when the first charging interface 10 inputs the first voltage, the first charging interface detection module 60 outputs a first voltage signal DC_Vchg_SCAN to the control module 50, and the control module 50 outputs a first control signal DC_CH_EN according to the first voltage signal to control the first switch module 41 to be turned on, thereby controlling the first charging interface 10 and the first charging module 30 to be in communication.

[0102] The second charging interface detection module 70 is configured to detect the input voltage of the second charging interface 20, and when the second charging interface 20 inputs the second voltage, the second charging interface detection module 70 outputs a second voltage signal SA_Vchg_SCAN to the control module 50, and the control module 50 outputs a second control signal SA_CH_EN according to the second voltage signal to control the second switch module 42 to be turned on, thereby controlling the second charging interface 20 and the first charging module 30 to be in communication.

[0103] In this way, the first charging interface detection module 60 can detect whether the first interface inputs the first voltage, and the second charging interface detection module 70 can detect whether the second interface inputs the second voltage.

[0104] In some embodiments, the first charging interface detection module 60 comprises at least one of a comparator, a voltage dividing circuit, and a MOS tube; and the second charging interface detection module 70 comprises at least one of a comparator, a voltage dividing circuit, and a MOS tube.

[0105] Specifically, the first charging interface detection module 60 and the second charging interface detection module 70 can be a comparator, a voltage dividing circuit, or a MOS tube, etc. In one embodiment, the first charging interface detection module 60 and the second charging interface detection module 70 are both voltage dividing circuits, and the voltage dividing circuit comprises a plurality of voltage dividing resistors, one end of the voltage dividing resistors being connected to the first charging interface 10, and when the first charging interface 10 inputs the first voltage, the voltage dividing circuit outputs a first voltage signal DC_Vchg_SCAN to the control module 50.

[0106] Therefore, the first charging interface detection module 60 and the second charging detection module are at least one of a comparator, a voltage dividing circuit, and a MOS tube, so that the first charging interface detection module 60 and the second charging detection module can detect the input voltage of the charging interface.

[0107] Referring to Figure 5 In some embodiments, the charging circuit 100 further comprises a power supply module 80 connected to the energy storage group 200, and the power supply module 80 is configured to adjust the output voltage output by the energy storage group 200 to a preset voltage to provide power to the control module 50.

[0108] Specifically, the input end of the power supply module 80 is connected to the energy storage group 200, and the output end of the power supply module 80 is connected to the control module 50. The power supply module 80 is configured to convert the voltage of the energy storage group 200 to a preset voltage that can be used by the control module 50 to provide power to the control module 50.

[0109] Therefore, the output voltage of the energy storage group 200 can be adjusted to a preset voltage value by the power supply module 80, and then provided to the control module 50 to power the control module 50.

[0110] Referring to Figure 6 In some embodiments, the charging circuit 100 further comprises a third charging interface 90 and a second charging module 110, and the third charging interface 90 charges the energy storage group 200 through the second charging module 110.

[0111] Specifically, the third charging interface 90 can be an alternating current charging interface. Since the processing methods of direct current voltage and alternating current voltage are different, the third charging interface 90 is difficult to share the first charging module 30 with the first charging interface 10 and the second charging interface 20. Therefore, the second charging module 110 is provided to process the alternating current voltage input by the third charging interface 90 before charging the energy storage group 200.

[0112] Therefore, through the second charging module 110 and the third charging interface 90, a new charging method can be provided for the energy storage group 200, and the charging voltage of the third charging interface 90 can be different from that provided by the first charging interface 10 and the second charging interface 20.

[0113] In some embodiments, the third charging interface 90 comprises an alternating current charging interface, and the second charging module 110 comprises an alternating current charging module.

[0114] Specifically, the third charging interface 90 can be an alternating current charging interface, and the second charging module 110 can be an alternating current charging module. The alternating current charging module can process the alternating current voltage input by the alternating current charging interface so that the alternating current voltage can charge the energy storage group 200, thereby realizing alternating current charging of the energy storage group 200.

[0115] Thus, by providing an independent AC charging interface for AC charging and setting the corresponding AC charging module, the energy storage group 200 can be charged.

[0116] Referring to Figure 7 The energy storage device 1000 includes a housing 300 and the charging circuit 100 and the energy storage group 200 of any of the above embodiments. The charging circuit 100 and the energy storage group 200 are arranged in the housing 300.

[0117] Specifically, the power supply device can include a vehicle emergency starting power supply, and the housing 300 can be made of plastic, metal, or the like. The housing 300 can provide protection for the power supply module, thereby reducing or avoiding the influence of dust, water vapor, and the like from the outside on the power supply module.

[0118] In some embodiments, the energy storage group 200 includes a chargeable and dischargeable battery, which includes at least one of a lithium ion battery, a sodium battery, at least one of a lithium iron phosphate battery, a ternary lithium battery, and a lithium cobaltate battery.

[0119] Thus, the first charging interface 10 or the second charging interface 20 can be in communication with the first charging module 30 to charge the chargeable and dischargeable battery.

[0120] In some embodiments, the energy storage device 1000 further includes an output interface 400, which includes one or more of a USB interface, an AC socket, and an emergency starting power supply output interface 400.

[0121] Specifically, the vehicle emergency starting power supply can supply power to a load through the output interface 400, for example, by connecting the vehicle through the emergency starting power supply output interface 400 and supplying power to the vehicle to enable the vehicle to start. The output interface 400 can be a USB interface, an AC socket, an emergency starting power supply output interface 400, and the like.

[0122] Thus, the energy storage device 1000 can supply power to a load through the output interface 400.

[0123] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0124] In addition, the term "connection" should be understood broadly, for example, it can include fixed connection, or detachable connection, or integral connection; it can include direct connection, or indirect connection through intermediate medium, or it can include the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0125] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0126] Any process or method descriptions in flow charts or otherwise described herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing specific logic functions or steps, and the various embodiments of the present application can include additional or fewer steps performing the described functions in the illustrated or discussed order, including substantially simultaneous execution of the functions according to the relevant function, or in reverse order, which should be understood by those skilled in the art of the embodiments of the present application.

[0127] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A charging circuit, characterized by, The charging circuit is used for charging the energy storage group, and the charging circuit comprises: a first charging interface; a second charging interface; a first charging module, the first charging interface and the second charging interface are connected to the first charging module, and the first charging interface and the second charging interface charge the energy storage group through the first charging module.

2. The charging circuit of claim 1, wherein, The first charging interface comprises a DC charging interface, the second charging interface comprises a solar charging interface, and the first charging module comprises a DC charging module.

3. The charging circuit of claim 2, wherein, The DC charging interface comprises a DC socket.

4. The charging circuit of claim 2, wherein, The solar charging interface comprises an Anderson charging interface.

5. The charging circuit of claim 2, wherein, The DC charging module comprises a voltage regulating charging module, which is used for converting the first charging voltage input by the first charging interface or the second charging voltage input by the second charging interface into a charging voltage capable of charging the energy storage group.

6. The charging circuit of claim 1, wherein, The charging circuit further comprises: a switch module connected to the first charging interface, the second charging interface and the first charging module; when the switch module is turned on, the first charging interface or the second charging interface is in communication with the first charging module to charge the energy storage group.

7. The charging circuit of claim 6, wherein, The charging circuit further comprises: a control module connected to the switch module and used for controlling the switch module to be turned on to control the first charging interface or the second charging interface to be in communication with the first charging module.

8. The charging circuit of claim 7, wherein, The switch module comprises a first switch module and a second switch module, the first switch module is connected to the first charging interface and the first charging module, the second switch module is connected to the second charging interface and the first charging module, and the control module is used for controlling the first switch module to be turned on and / or the second switch module to be turned on to control the first charging interface or the second charging interface to be in communication with the first charging module.

9. The charging circuit of claim 7, wherein, The control module is used for controlling the switch module to be turned on to control the first charging interface to be in communication with the first charging module when the first charging interface inputs a first voltage, controlling the switch module to be turned on to control the second charging interface to be in communication with the first charging module when the second charging interface inputs a second voltage, and controlling the switch module to be turned on according to a preset priority to control the first charging interface or the second charging interface to be in communication with the first charging module when the first charging interface inputs the first voltage and the second charging interface inputs the second voltage.

10. The charging circuit of claim 9, wherein, The preset priority comprises: giving priority to a preset charging interface, the preset charging interface being the first charging interface or the second charging interface; or giving priority to a charging interface in which a voltage is input earlier between the first charging interface and the second charging interface.

11. The charging circuit of claim 9, wherein, The second charging interface comprises a solar charging interface, the preset priority comprises giving priority to the solar charging interface, and in a case where the first charging interface inputs the first voltage and the solar charging interface inputs the second voltage, the control module is configured to control the switch module to be turned on, so as to control the solar charging interface and the first charging module to be in communication.

12. The charging circuit of claim 9, wherein, The charging circuit further comprises A first charging interface detection module connected with the first charging interface and the control module, and the control module is configured to detect whether the first charging interface inputs the first voltage through the first charging interface detection module; A second charging interface detection module connected with the second charging interface and the control module, and the control module is configured to detect whether the first charging interface inputs the second voltage through the second charging interface detection module.

13. The charging circuit of claim 12, wherein, The first charging interface detection module comprises at least one of a comparator, a voltage dividing circuit and a MOS tube, and the second charging interface detection module comprises at least one of a comparator, a voltage dividing circuit and a MOS tube.

14. The charging circuit of claim 7, wherein, The charging circuit further comprises: A power supply module connected with the energy storage group, and the power supply module is configured to adjust an output voltage output by the energy storage group to a preset voltage, and provide the control module with the preset voltage.

15. The charging circuit of claim 1, wherein, The charging circuit further comprises: A third charging interface; A second charging module, and the third charging interface charges the energy storage group through the second charging module.

16. The charging circuit of claim 15, wherein, The third charging interface comprises an alternating current charging interface, and the second charging module comprises an alternating current charging module.

17. An energy storage device, comprising: The energy storage device comprises a shell, the charging circuit and the energy storage group according to any one of claims 1-11, and the charging circuit and the energy storage group are arranged in the shell.

18. The energy storage device of claim 17, wherein, The energy storage group comprises a chargeable and dischargeable battery, and the chargeable and dischargeable battery comprises at least one of a lithium ion battery and a sodium battery, and the lithium ion battery comprises at least one of a lithium iron phosphate battery, a ternary lithium battery and a lithium cobaltate battery.

19. The energy storage device of claim 17, wherein, The energy storage device further comprises an output interface, and the output interface comprises one or more, and the output interface comprises at least one of a USB interface, an alternating current socket and an emergency starting power output interface.

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