Charging and discharging integrated device and charging and discharging system

Abstract

The utility model relates to a charging and discharging integrated device and a charging and discharging system. The charging and discharging integrated device comprises an interface used for being connected with external equipment; the battery compartment is used for accommodating a plurality of batteries; the charging and discharging circuit is connected with the interface and the battery compartment and is used for forming a charging and discharging path with external equipment and the batteries under the condition that the interface is connected with the external equipment and the batteries are accommodated in the battery compartment, the charging and discharging path comprises one of a charging loop and a discharging loop, the batteries in the charging loop are in a parallel connection state, and the batteries in the discharging loop are in a parallel connection state. The batteries are connected in series in the discharge loop; and the control assembly is connected with the interface and the charging and discharging circuit, and is used for controlling the working state of the charging and discharging circuit under the condition that the interface is connected with external equipment and a plurality of batteries are accommodated in the battery bin so as to control the working mode of the charging and discharging integrated device to be a charging mode or a discharging mode. The charging and discharging integrated device has a charging function and a discharging function.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an integrated charging and discharging device and charging and discharging system. Background Technology

[0002] In recent years, rechargeable batteries have been widely used in various portable electrical and electronic devices due to their high energy density and long lifespan, gradually becoming a replacement for traditional batteries.

[0003] However, existing rechargeable battery charging cases typically only support charging or discharging functions, which is limited to a single function. Utility Model Content

[0004] Therefore, it is necessary to provide a charging and discharging integrated device and charging and discharging system that can simultaneously support charging and discharging of rechargeable batteries, in order to address the above-mentioned technical problems.

[0005] In a first aspect, this application provides a charging and discharging integrated device, the device comprising:

[0006] An interface for connecting to external devices;

[0007] A battery compartment for accommodating multiple batteries;

[0008] A charging and discharging circuit is connected to the interface and each of the battery compartments respectively, and is used to form a charging and discharging path with the external device and the batteries when the interface is connected to the external device and the battery compartment contains multiple batteries. The charging and discharging path includes one of a charging circuit and a discharging circuit. In the charging circuit, each of the batteries is in parallel and in the discharging circuit, each of the batteries is in series.

[0009] A control component, connected to the interface and the charging / discharging circuit, is used to control the operating state of the charging / discharging circuit when the interface is connected to the external device and the battery compartment contains multiple batteries, thereby controlling the operating mode of the integrated charging / discharging device; the operating mode includes one of a charging mode and a discharging mode, wherein the charging mode is in which the external device charges the battery through the charging circuit, and the discharging mode is in which the battery supplies power to the external device through the discharging circuit.

[0010] In one embodiment, the battery compartment includes multiple battery sub-compartments; the charging and discharging circuit includes:

[0011] A charging module, wherein a first end of the charging module is connected to the interface;

[0012] A discharge module, wherein the first end of the discharge module is connected to the interface;

[0013] A multi-stage switching module is provided. The first-stage switching module has multiple first terminals connected to the second terminals of the charging module, the discharging module, and a common ground, respectively. The multiple second terminals of the first-stage switching module are connected to the positive and negative terminals of the first-stage battery sub-compartment, respectively, for selectively connecting the charging module or the discharging module to the positive terminal of the first-stage battery sub-compartment, and for selectively connecting the negative terminal of the first-stage battery sub-compartment to the common ground. The i-th stage switching module has multiple first terminals connected to the second terminal of the charging module, the common ground, and the negative terminal of the (i-1)-th stage battery sub-compartment, respectively. The multiple second terminals of the i-th stage switching module are connected to the positive and negative terminals of the i-th stage battery sub-compartment, respectively, for selectively connecting the charging module or the (i-1)-th stage battery sub-compartment to the positive terminal of the i-th stage battery sub-compartment, and for selectively connecting the negative terminal of the i-th stage battery sub-compartment to the common ground; 1 < i ≤ N, where N represents the maximum number of batteries that the battery compartment can hold.

[0014] In one embodiment, the j-th level switching module includes:

[0015] A first switching unit, wherein a first end of the first switching unit is connected to a second end of the charging module, and a second end of the first switching unit is connected to the positive electrode portion of the j-th stage battery sub-compartment, for conducting a path between the charging module and the positive electrode portion of the j-th stage battery sub-compartment;

[0016] The second switching unit has a first end connected to the common ground and a second end connected to the negative terminal of the j-th stage battery sub-compartment, for conducting the path between the negative terminal of the j-th stage battery sub-compartment and the common ground.

[0017] The third switching unit has a first end connected to the positive electrode of the j-th battery and a second end connected to the target end, which is used to connect the positive electrode of the j-th battery sub-compartment to the target end; wherein, when j=1, the target end is the second end of the discharge module; when 1<j≤N, the target end is the negative electrode of the (j-1)-th battery sub-compartment.

[0018] In one embodiment, when each of the first switch units and each of the second switch units are turned on and each of the third switch units is turned off, the charging and discharging integrated device is in charging mode;

[0019] When each of the third switching units and the second switching unit of the Nth-level switching module are turned on, and each of the first switching units and all the second switching units except the second switching unit of the Nth-level switching module are turned off, the charging and discharging integrated device is in discharge mode.

[0020] In one embodiment, the control component includes:

[0021] An identification unit, connected to the interface, is used to identify the device type of the external device when the interface is connected to the external device, and generate a first target control signal; wherein the device type of the external device includes one of rechargeable, discharging, and bidirectional types;

[0022] The first control unit is connected to the identification unit and the charging / discharging circuit respectively, and is used to control the working state of the charging / discharging circuit according to the first target control signal.

[0023] In one embodiment, the control component further includes:

[0024] A control button, connected to the first control unit, is used to generate a second target control signal in response to external operations.

[0025] The first control unit is further configured to switch the operating state of the charging and discharging circuit according to the second target control signal, so as to switch the operating mode of the integrated charging and discharging device.

[0026] In one embodiment, the control component includes:

[0027] A toggle switch is used to generate a target control signal in response to external operations;

[0028] The second control unit is connected to the toggle switch and the charging / discharging circuit respectively, and is used to control the working state of the charging / discharging circuit according to the target control signal.

[0029] In one embodiment, the device further includes:

[0030] The housing includes an upper housing portion, the upper housing portion including a plurality of spacers extending along a first direction, the spacers being spaced apart in a second direction to form a plurality of battery accommodating areas;

[0031] A circuit board is located inside the housing, and the charging and discharging circuit and the control components are both disposed on the circuit board; the circuit board is also provided with a plurality of positive electrode portions and a plurality of negative electrode portions, the positive electrode portions are located at one end of the circuit board in a first direction, and the negative electrode portions are located at the other end of the circuit board in the first direction; wherein, each of the battery accommodating intervals has a positive electrode portion and a negative electrode portion respectively.

[0032] In one embodiment, the housing further includes a lower housing portion, the circuit board is connected to the lower housing portion and the upper housing portion respectively, and is located between the upper housing portion and the lower housing portion, the lower housing portion, the circuit board and the upper housing portion together constitute a charging and discharging chamber;

[0033] The housing further includes an outer shell portion for accommodating the charging / discharging chamber.

[0034] Secondly, this application provides a charging and discharging system, including multiple batteries and the integrated charging and discharging device in any of the above embodiments.

[0035] The aforementioned integrated charging and discharging device and charging and discharging system include an interface for connecting to an external device, a battery compartment for accommodating multiple batteries, a charging and discharging circuit for forming a charging and discharging path with the external device and the batteries, and a control component for controlling the operating state of the charging and discharging circuit. In application, when the interface is connected to an external device and the battery compartment contains multiple batteries, the control component can control the operating state of the charging and discharging circuit, thereby controlling the operating mode of the integrated charging and discharging device, so that the external device can charge the battery through the charging circuit, or the battery can supply power to the external device through the discharging circuit. Thus, the integrated charging and discharging device of this application has both charging and discharging functions. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a charge-discharge integrated device in one embodiment;

[0038] Figure 2 This is a schematic diagram of the charging and discharging circuit in one embodiment;

[0039] Figure 3 This is a schematic diagram of the charging and discharging circuit in another embodiment;

[0040] Figure 4 This is a schematic diagram of the charging and discharging integrated device in another embodiment;

[0041] Figure 5 This is a schematic diagram of the charging and discharging integrated device in another embodiment;

[0042] Figure 6This is a schematic diagram of the integrated charge-discharge device in yet another embodiment;

[0043] Figure 7 This is a schematic diagram of the integrated charge and discharge device in another embodiment. Detailed Implementation

[0044] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0046] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0047] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0048] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.

[0049] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0050] In one exemplary embodiment, please refer to Figure 1 This application provides a charging and discharging integrated device, which includes an interface 1, a battery compartment 2, a charging and discharging circuit 3, and a control component 4.

[0051] Interface 1 is used to connect to external devices; battery compartment 2 is used to hold multiple batteries; charging and discharging circuit 3 is connected to interface 1 and battery compartment 2 respectively, and is used to form a charging and discharging path with external devices and batteries when interface 1 is connected to external devices and battery compartment 2 contains multiple batteries. The charging and discharging path includes one of a charging circuit and a discharging circuit. In the charging circuit, the batteries are in parallel, and in the discharging circuit, the batteries are in series. Control component 4 is connected to interface 1 and charging and discharging circuit 3, and is used to control the working state of charging and discharging circuit 3 when interface 1 is connected to external devices and battery compartment 2 contains multiple batteries, so as to control the working mode of the integrated charging and discharging device. The working mode includes one of a charging mode and a discharging mode. In the charging mode, the external device charges the battery through the charging circuit, and in the discharging mode, the battery supplies power to the external device through the discharging circuit.

[0052] It is understood that the battery compartment may include multiple battery sub-compartments. Each battery sub-compartment includes a battery slot, a positive terminal, and a negative terminal. The battery slot is used to hold a battery. When the battery is placed in the battery slot, the positive terminal of the battery is adapted to be electrically connected to the positive terminal in the battery sub-compartment, and the negative terminal of the battery is adapted to be electrically connected to the negative terminal in the battery sub-compartment. In one example, when interface 1 is connected to an external device, the control component 4 can provide interface 1 to identify the device type of the external device, and then automatically control the operating state of the charging and discharging circuit 3 according to the device type of the external device, thereby controlling the operating mode of the integrated charging and discharging device. The device type of the external device may include one of rechargeable, discharging, and bidirectional types. When the control component 4 identifies the external device as a rechargeable device, it can control the formation of a discharge circuit between the external device and the battery, so that the battery supplies power to the external device through the discharge circuit. When the control component 4 identifies the external device as a discharge-type device, it can control the formation of a charging circuit between the external device and the battery, so that the external device charges the battery through the charging circuit. When the control component 4 identifies the external device as a bidirectional device, it can calculate the target level of the electrical signal output by the external device within a preset time, and calculate the target level of the electrical signal output by the integrated charging and discharging device within a preset time. Based on the comparison of these two times, it controls the working state of the charging and discharging circuit 3. For example, when the external device is a bidirectional device, if the low level of the electrical signal output by the integrated charging and discharging device is greater than the low level of the electrical signal output by the external device within a preset time, the control component 4 can control the formation of a discharge circuit between the external device and the battery, so that the battery supplies power to the external device through the discharge circuit.

[0053] The number of interfaces 1 can be one, and it can be a Type-C interface.

[0054] The aforementioned integrated charging and discharging device includes an interface for connecting to an external device, a battery compartment for accommodating multiple batteries, a charging and discharging circuit for forming a charging and discharging path with the external device and the batteries, and a control component for controlling the operating state of the charging and discharging circuit. In application, when the interface is connected to an external device and the battery compartment contains multiple batteries, the control component can control the operating state of the charging and discharging circuit, thereby controlling the operating mode of the integrated charging and discharging device, so that the external device can charge the battery through the charging circuit, or the battery can supply power to the external device through the discharging circuit. Thus, the integrated charging and discharging device of this application has both charging and discharging functions.

[0055] In one exemplary embodiment, please refer to Figure 2 The charging and discharging circuit 3 includes a charging module 31, a discharging module 32, and a multi-stage switching module 33.

[0056] The first end of the charging module 31 is connected to the interface 1. The first end of the discharging module 32 is connected to the interface 1. The control ends of each level of the switching module 33 are connected to the control component. The multiple first ends of the first-level switching module 33 are respectively connected to the second ends of the charging module 31, the second ends of the discharging module 32, and the common ground. The multiple second ends of the first-level switching module 33 are respectively connected to the positive and negative terminals of the first-level battery sub-compartment 21, used to select and connect the path between the charging module or discharging module and the positive terminal of the first-level battery sub-compartment 21, and to select and connect the path between the negative terminal of the first-level battery sub-compartment 21 and the common ground; the i-th level switching module 3 Multiple first terminals of the charging module 3 are respectively connected to the second terminal of the charging module, the common ground, and the negative terminal of the (i-1)th stage battery sub-compartment 21. Multiple second terminals of the i-th stage switching module 33 are respectively connected to the positive and negative terminals of the i-th stage battery sub-compartment 21, used to select the conduction of the path between the charging module or the negative terminal of the (i-1)th stage battery sub-compartment 21 and the positive terminal of the i-th stage battery sub-compartment, and to select the conduction of the path between the negative terminal of the i-th stage battery sub-compartment 21 and the common ground; 1 < i ≤ N, where N represents the maximum number of batteries that the battery compartment can hold. The charging / discharging circuit 3 may be equipped with at least one overvoltage protection unit, an overcurrent protection unit, a short-circuit protection unit, and an overtemperature protection unit to ensure safe and reliable charging and discharging processes.

[0057] In this embodiment, when the integrated charge-discharge device is in charging mode, the path between the charging module 31 and the positive terminal of each battery sub-compartment 21 is open, and the path between the common ground and the negative terminal of each battery sub-compartment 21 is open, thus the battery sub-compartments 21 are connected in parallel, meaning the batteries within each battery sub-compartment 21 are connected in parallel, allowing external devices to charge each battery level simultaneously. When the integrated charge-discharge device is in discharging mode, the path between the positive terminal of the first-level battery sub-compartment 21 and the discharging module 32 is open, the path between the negative terminal of each battery sub-compartment 21 and the positive terminal of the next-level battery sub-compartment 21 is open, and the path between the negative terminal of the last-level battery sub-compartment 21 and the common ground is open, thus the battery sub-compartments 21 are connected in series, meaning the batteries within each battery sub-compartment 21 are connected in series, allowing each battery level to provide the discharging module to charge external devices. In one example, the discharging module of this application has a step-down function, which can convert the total voltage of each battery level into a preset voltage and output it to an external device through an interface.

[0058] In one exemplary embodiment, please continue to refer to Figure 2 The j-th level switch module 33 includes: a first switch unit 331, a second switch unit 332 and a third switch unit 333.

[0059] The first terminal of the first switching unit 331 is connected to the second terminal of the charging module 31, and the second terminal of the first switching unit 331 is connected to the positive terminal of the j-th battery sub-compartment, for establishing a connection between the charging module 31 and the positive terminal of the j-th battery sub-compartment. The first terminal of the second switching unit 332 is connected to the common ground, and the second terminal of the second switching unit 332 is connected to the negative terminal of the j-th battery sub-compartment, for establishing a connection between the negative terminal of the j-th battery sub-compartment and the common ground. The first terminal of the third switching unit 333 is connected to the positive terminal of the j-th battery, and the second terminal of the third switching unit 333 is connected to the target terminal, for establishing a connection between the positive terminal of the j-th battery sub-compartment and the target terminal; wherein, when j=1, the target terminal is the second terminal of the discharging module 32; when 1<j≤N, the target terminal is the negative terminal of the (j-1)-th battery sub-compartment. The control terminals of the first switching unit 331, the second switching unit 332, and the third switching unit 333 are all connected to the control component.

[0060] As shown in the diagram, the first switch unit 331, under the control of the control component, connects the charging module 31 to the positive terminal of the corresponding battery sub-compartment. The second switch unit 332, under the control of the control component, connects the common ground to the negative terminal of the corresponding battery sub-compartment. The first-stage third switch unit 333, under the control of the control component, connects the discharging module 32 to the positive terminal of the corresponding battery sub-compartment. The remaining third switch units 333, under the control of the control component, connect the terminals of two adjacent battery sub-compartments. In application, the last-stage switch module may not include the second switch unit 332, meaning the negative terminal of the last-stage battery sub-compartment is directly connected to the common ground.

[0061] In application, when all first switch units 331 and second switch units 332 are turned on and all third switch units 333 are turned off, the integrated charge-discharge device is in charging mode. When all third switch units 333 and the second switch units 332 of the Nth-level switch module 33 are turned on and all first switch units 331 and all second switch units 332 except the second switch unit 332 of the Nth-level switch module are turned off, the integrated charge-discharge device is in discharging mode.

[0062] In one example, see Figure 3Assume that battery compartment 2 includes four battery sub-compartments 21 (21-1, 21-2, 21-3, 21-4). Correspondingly, charging and discharging circuit 3 includes a four-stage switching module 33. The first-stage switching module 33 includes a first switching unit 331-1, a second switching unit 332-1, and a third switching unit 333-1. The first end of the first switching unit 331-1 is connected to the second end of the charging module 31, and the second end of the first switching unit 331-1 is connected to the positive terminal of the first-stage battery sub-compartment 21-1. The first end of the second switching unit 332-1 is connected to the common ground, and the second end of the second switching unit 332-1 is connected to the negative terminal of the first-stage battery sub-compartment 21-1. The first end of the third switching unit 333-1 is connected to the positive terminal of the first-stage battery, and the second end of the third switching unit 333-1 is connected to the discharge module 31. The second end of the second-stage switch module 33 is connected to the second end of the charging module 31. The second end of the first-stage switch module 33 includes a first switch unit 331-2, a second switch unit 332-2, and a third switch unit 333-2. The first end of the first switch unit 331-2 is connected to the second end of the charging module 31, and the second end of the first switch unit 331-2 is connected to the positive terminal of the second-stage battery sub-compartment 21-2. The first end of the second switch unit 332-2 is connected to the common ground, and the second end of the second switch unit 332-2 is connected to the negative terminal of the second-stage battery sub-compartment 21-2. The first end of the third switch unit 333-2 is connected to the positive terminal of the second-stage battery sub-compartment 21-2, and the second end of the third switch unit 333-2 is connected to the negative terminal of the first-stage battery sub-compartment 21-1. The third-level switch module 33 includes a first switch unit 331-3, a second switch unit 332-3, and a third switch unit 333-3. The first end of the first switch unit 331-3 is connected to the second end of the charging module 31, and the second end of the first switch unit 331-3 is connected to the positive terminal of the third-level battery sub-compartment 21-3. The first end of the second switch unit 332-3 is connected to the common ground, and the second end of the second switch unit 332-3 is connected to the negative terminal of the third-level battery sub-compartment 21-3. The first end of the third switch unit 333-3 is connected to the positive terminal of the third-level battery sub-compartment 21-3, and the second end of the third switch unit 333-3 is connected to the negative terminal of the second-level battery sub-compartment 21-2. Connection; The fourth-level switch module 33 includes a first switch unit 331-4, a second switch unit 332-4, and a third switch unit 333-4. The first end of the first switch unit 331-4 is connected to the second end of the charging module 31, and the second end of the first switch unit 331-4 is connected to the positive terminal of the fourth-level battery sub-compartment 21-4. The first end of the second switch unit 332-4 is connected to the common ground, and the second end of the second switch unit 332-4 is connected to the negative terminal of the fourth-level battery sub-compartment 21-4. The first end of the third switch unit 333-4 is connected to the positive terminal of the fourth-level battery sub-compartment 21-4, and the second end of the third switch unit 333-4 is connected to the negative terminal of the third-level battery sub-compartment 21-3.

[0063] With batteries installed in each battery sub-compartment, when the external device is a discharge-type device, the control component can control the first switch unit 331-1, the first switch unit 331-2, the first switch unit 331-3, the first switch unit 331-4, the second switch unit 332-1, the second switch unit 332-2, the second switch unit 332-3, and the second switch unit 332-4 to be turned on, while the third switch unit 333-1, the third switch unit 333-2, the third switch unit 333-3, and the third switch unit 333-4 are turned off. As a result, the batteries in each charging sub-compartment can be in parallel and receive power from the external device. When the external device is a charging device, the control component can control the third switch unit 333-1, the third switch unit 333-2, the third switch unit 333-3, the third switch unit 333-4 and the second switch unit 332-4 to be turned on, and control the first switch unit 331-1, the first switch unit 331-2, the first switch unit 331-3, the first switch unit 331-4, the second switch unit 332-1, the second switch unit 332-2 and the second switch unit 332-3 to be turned off, so that the batteries in each charging sub-compartment can be in series and supply power to the external device.

[0064] In another embodiment, the charging compartment of this application does not need to install batteries according to the maximum number of batteries that the battery compartment can hold. Even when the number of batteries installed in the charging compartment is less than or equal to the maximum number of batteries that the battery compartment can hold, the integrated charging and discharging device of this application can still achieve charging and discharging functions. When the number of batteries installed in the charging compartment is less than the maximum number of batteries that the battery compartment can hold, and the battery sub-compartments with batteries are arranged sequentially with batteries installed in the first-level battery sub-compartment, if it is necessary to put the integrated charging and discharging device of this application into a discharging mode, the third switch unit 333 corresponding to the battery sub-compartment with batteries installed and the second switch unit 332 corresponding to the last-level battery sub-compartment with batteries installed in the sequentially cascaded battery sub-compartments can be controlled to be turned on. In one example, please refer to [further details omitted]. Figure 3 Assuming that batteries are installed in the first-stage battery sub-compartment 21-1, the second-stage battery sub-compartment 21-2, and the third-stage battery sub-compartment 21-3, and no batteries are installed in the fourth-stage battery sub-compartment 21-4, if it is necessary to put the integrated charging and discharging device of this application into the discharge mode, the third switch unit 333-1, the third switch unit 333-2, the third switch unit 333-3 and the second switch unit 332-3 can be turned on, so that the batteries installed in the first-stage battery sub-compartment 21-1, the second-stage battery sub-compartment 21-2 and the third-stage battery sub-compartment 21-3 can be in series and discharge to the outside through the discharge circuit.

[0065] When the number of batteries installed in the charging compartment is less than the maximum number of batteries the compartment can hold, if it is necessary to put the integrated charging and discharging device of this application into charging mode, the first switch unit 331 and the second switch unit 332 corresponding to the battery sub-compartment containing the batteries can be turned on. For an example, please refer to [link / reference needed]. Figure 3 Assuming that batteries are installed in the first-level battery sub-compartment 21-1 and the third-level battery sub-compartment 21-3, if it is necessary to put the charging and discharging integrated device of this application into the charging mode, the first switch unit 331-1, the first switch unit 331-3, the second switch unit 332-1 and the second switch unit 332-3 can be controlled to be turned on.

[0066] In the application, each battery compartment can also be equipped with a sensing unit to detect whether a battery is installed in the battery compartment. The first switching unit 331, the second switching unit 332 and the third switching unit 333 can include at least one of electronic devices that can perform switching functions, such as relays, MOSFETs, and IGBTs.

[0067] In one exemplary embodiment, the target control signal includes a first target control signal; see also Figure 4 The control component 4 includes: an identification unit 41 and a first control unit 42.

[0068] The identification unit 41 is connected to the interface 1 and is used to identify the device type of the external device when the interface 1 is connected to the external device, and generate a first target control signal; wherein, the device type of the external device includes one of charging type, discharging type and bidirectional type; the first control unit 42 is connected to the identification unit 41 and the charging and discharging circuit 3 respectively, and is used to control the working state of the charging and discharging circuit 3 according to the first target control signal.

[0069] In the application, the identification unit can be an identification chip. When interface 1 is connected to an external device, the CC pin of the identification unit can be connected to the CC pin of the external device, and the two can communicate. The identification unit can thus identify the device type of the external device, and then send a corresponding first target control signal to the first control unit 42 according to the device type of the external device. The first control unit 42 controls the on / off state of each switch unit in the charging and discharging circuit 3 according to the first target control signal. For example, assuming that the number of batteries installed in the charging compartment is equal to the maximum number of batteries that the battery compartment can hold, when the control component 4 identifies the external device as a charging device, it can control the third switch unit and the second switch unit in the last stage switch module of the charging and discharging circuit 3 to be turned on; when the control component 4 identifies the external device as a discharging device, it can control the first switch unit and the second switch unit in the charging and discharging circuit 3 to be turned on; when the control component 4 identifies the external device as a bidirectional device, the control component 4 can calculate the target level time of the electrical signal output by the external device within a preset time, and calculate the target level time of the electrical signal output by the charging and discharging integrated device within a preset time, and control the on / off state of each switch unit in the charging and discharging circuit 3 based on the comparison of these two times.

[0070] In one exemplary embodiment, the target control signal further includes a second target control signal; see [link to relevant documentation]. Figure 5 The control component also includes a control button 43 connected to the first control unit 42. The control button 43 is used to generate a second target control signal in response to external operation. The first control unit 42 is also used to switch the working state of the charging and discharging circuit according to the second target control signal, so as to switch the working mode of the charging and discharging integrated device.

[0071] In this embodiment, the integrated charging and discharging device of this application can also be provided with a control button 43, so that the user can switch the working mode of the integrated charging and discharging device according to their own needs. For example, when the interface is connected to a bidirectional external device and the control component controls the working mode of the integrated charging and discharging device to charging mode, if the user wants to switch the working mode of the integrated charging and discharging device to discharging mode, they can press the control button 43, thereby controlling the button 43 to output a second target control signal to the first control unit. After receiving the second target control signal, the first control unit 42 can switch the working state of the charging and discharging circuit. In application, to avoid accidental touch, it can be set that the second target control signal will only be output to the first control unit after the control button 43 has been pressed for a preset time threshold.

[0072] In one exemplary embodiment, please refer to Figure 6 The control component 4 includes a toggle switch 44 and a second control unit 45.

[0073] The toggle switch 44 is used to generate a target control signal in response to external operation; the second control unit 45 is connected to the toggle switch 44 and the charging / discharging circuit 3 respectively, and is used to control the working state of the charging / discharging circuit according to the target control signal.

[0074] In another embodiment, the integrated charging and discharging device of this application may be equipped with a toggle switch 44, allowing the user to directly control the operating mode of the integrated charging and discharging device by toggling the toggle switch 44. Simultaneously, the control component 4 may also include an identification unit 41 and an indicator light. However, in this embodiment, the identification unit 41 is not used to output a target control signal to the second control unit. Instead, when the type of external device identified by the identification unit 41 does not match the current operating mode of the integrated charging and discharging device, the identification unit 41 may send a prompt signal to the second control unit. The second control unit then controls the indicator light to display a predetermined color constant or flash to indicate to the user that the type of external device does not match the current operating mode of the integrated charging and discharging device. The user can then switch the operating mode of the integrated charging and discharging device by toggling the toggle switch 44.

[0075] In one exemplary embodiment, please refer to Figure 7 Please see Figure 7 This is an example of a charge-discharge integrated device that can accommodate up to four batteries. Figure 7 For illustrative purposes only, this application does not impose a specific limit on the maximum number of batteries that the integrated charge-discharge device can accommodate in practical applications. The integrated charge-discharge device of this application also includes: a housing, a circuit board 200, and a light guide structure 300. The first direction is the X-axis direction shown in the figure, the second direction is the Y-axis direction shown in the figure, and the third direction is the Z-axis direction shown in the figure.

[0076] The housing includes an upper shell 101, a lower shell 102, an outer shell 103, and an end cap 104. The upper shell 101 includes multiple spacers 1011 extending in a first direction, spaced apart in a second direction to form multiple battery accommodating areas. A circuit board is connected to both the lower shell and the upper shell, and is located between them. The lower shell, circuit board, and upper shell together constitute a charging / discharging compartment, which can be placed inside the outer shell 103. The outer shell 103 is connected to the end cap 104, forming a closed integrated charging / discharging device. The end cap 104 has a latch 1041. In application, when the charging / discharging compartment is inserted into the outer shell and pressed down completely, the latch 1041 locks the compartment, thus storing it. Pressing the compartment again unlocks the latch and ejects the compartment a certain distance, allowing it to be removed. Through holes can be provided on the circuit board 200 and the lower shell 102 corresponding to the charging and discharging compartments, allowing the battery to be pushed out from the lower shell 102 for easy removal. The circuit board 200 is located inside the shell, specifically between the upper shell 101 and the lower shell 102 in a third-direction direction. The charging and discharging circuit and control components are all disposed on the circuit board 200. The circuit board 200 also has multiple positive electrode portions 201 and multiple negative electrode portions 202, with the positive electrode portions 201 located at one end of the circuit board 200 in a first direction and the negative electrode portions 202 located at the other end of the circuit board 200 in the first direction. Each battery accommodating area has one positive electrode portion 201 and one negative electrode portion 202. The light guide structure 300 includes a light guide ring 301 and a light guide post 302. The light guide structure 300 can display the battery level, charging status, and discharging status under the action of the control components. For example, when the battery level is too low, the light guide structure 300 can flash to prompt the user to stop using the battery.

[0077] This application's integrated charging and discharging device achieves charging and discharging functions through a Type-C interface, making it convenient to use. The Type-C interface, paired with an identification chip, can automatically identify connected devices and activate the first control unit, demonstrating a high degree of intelligence. The charging and discharging circuit controls the batteries to charge in parallel during charging and to supply power in series during discharging, fully utilizing battery energy. Furthermore, the overall circuit has multiple protection functions, including overvoltage, overcurrent, short circuit, and overtemperature protection, ensuring safety during charging and discharging. In addition, the charging and discharging modes can be switched via a toggle switch or control buttons, providing intuitive user operation. This integrated charging and discharging device is compact and portable, suitable for outdoor travel, emergency power supply, and other scenarios. Users only need to carry a few rechargeable batteries and the integrated charging and discharging device to provide backup power for mobile phones and other devices.

[0078] In one exemplary embodiment, this application provides a charging and discharging system including a plurality of batteries and the charging and discharging integrated device of any of the above embodiments.

[0079] In the description of this specification, references to terms such as "some embodiments," "other embodiments," and "ideal embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A charging and discharging integrated device, characterized in that, The device includes: An interface for connecting to external devices; A battery compartment for accommodating multiple batteries; A charging and discharging circuit is connected to the interface and the battery compartment respectively. When the interface is connected to the external device and the battery compartment contains multiple batteries, it forms a charging and discharging path with the external device and the batteries. The charging and discharging path includes one of a charging circuit and a discharging circuit. In the charging circuit, the batteries are connected in parallel, and in the discharging circuit, the batteries are connected in series. A control component, connected to the interface and the charging / discharging circuit, is used to control the operating state of the charging / discharging circuit when the interface is connected to the external device and the battery compartment contains multiple batteries, thereby controlling the operating mode of the integrated charging / discharging device; the operating mode includes one of a charging mode and a discharging mode, wherein the charging mode is in which the external device charges the battery through the charging circuit, and the discharging mode is in which the battery supplies power to the external device through the discharging circuit.

2. The integrated charging and discharging device according to claim 1, characterized in that, The battery compartment includes multiple battery sub-compartments; the charging and discharging circuit includes: A charging module, wherein a first end of the charging module is connected to the interface; A discharge module, wherein the first end of the discharge module is connected to the interface; A multi-stage switching module is provided. The first-stage switching module has multiple first terminals connected to the second terminals of the charging module, the discharging module, and a common ground, respectively. The multiple second terminals of the first-stage switching module are connected to the positive and negative terminals of the first-stage battery sub-compartment, respectively, for selectively connecting the charging module or the discharging module to the positive terminal of the first-stage battery sub-compartment, and for selectively connecting the negative terminal of the first-stage battery sub-compartment to the common ground. The i-th stage switching module has multiple first terminals connected to the second terminal of the charging module, the common ground, and the negative terminal of the (i-1)-th stage battery sub-compartment, respectively. The multiple second terminals of the i-th stage switching module are connected to the positive and negative terminals of the i-th stage battery sub-compartment, respectively, for selectively connecting the charging module or the (i-1)-th stage battery sub-compartment to the positive terminal of the i-th stage battery sub-compartment, and for selectively connecting the negative terminal of the i-th stage battery sub-compartment to the common ground; 1 < i ≤ N, where N represents the maximum number of batteries that the battery compartment can hold.

3. The integrated charging and discharging device according to claim 2, characterized in that, The switching module at level j includes: A first switching unit, wherein a first end of the first switching unit is connected to a second end of the charging module, and a second end of the first switching unit is connected to the positive electrode portion of the j-th stage battery sub-compartment, for conducting a path between the charging module and the positive electrode portion of the j-th stage battery sub-compartment; The second switching unit has a first end connected to the common ground and a second end connected to the negative terminal of the j-th stage battery sub-compartment, for conducting the path between the negative terminal of the j-th stage battery sub-compartment and the common ground. The third switching unit has a first end connected to the positive electrode of the j-th battery and a second end connected to the target end, which is used to connect the positive electrode of the j-th battery sub-compartment to the target end; wherein, when j=1, the target end is the second end of the discharge module; when 1<j≤N, the target end is the negative electrode of the (j-1)-th battery sub-compartment.

4. The integrated charging and discharging device according to claim 3, characterized in that, When each of the first and second switching units is turned on and each of the third switching units is turned off, the charging and discharging integrated device is in charging mode; When each of the third switching units and the second switching unit of the Nth-level switching module are turned on, and each of the first switching units and all the second switching units except the second switching unit of the Nth-level switching module are turned off, the charging and discharging integrated device is in discharge mode.

5. The integrated charging and discharging device according to claim 1, characterized in that, The control component includes: An identification unit, connected to the interface, is used to identify the device type of the external device when the interface is connected to the external device, and generate a first target control signal; wherein the device type of the external device includes one of rechargeable, discharging, and bidirectional types; The first control unit is connected to the identification unit and the charging / discharging circuit respectively, and is used to control the working state of the charging / discharging circuit according to the first target control signal.

6. The integrated charging and discharging device according to claim 5, characterized in that, The control component also includes: A control button, connected to the first control unit, is used to generate a second target control signal in response to external operations. The first control unit is further configured to switch the operating state of the charging and discharging circuit according to the second target control signal, so as to switch the operating mode of the integrated charging and discharging device.

7. The integrated charging and discharging device according to claim 1, characterized in that, The control component includes: A toggle switch is used to generate a target control signal in response to external operations; The second control unit is connected to the toggle switch and the charging / discharging circuit respectively, and is used to control the working state of the charging / discharging circuit according to the target control signal.

8. The integrated charging and discharging device according to claim 1, characterized in that, The device further includes: The housing includes an upper housing portion, the upper housing portion including a plurality of spacers extending along a first direction, the spacers being spaced apart in a second direction to form a plurality of battery accommodating areas; A circuit board is located inside the housing, and the charging and discharging circuit and the control components are both disposed on the circuit board; the circuit board is also provided with a plurality of positive electrode portions and a plurality of negative electrode portions, the positive electrode portions are located at one end of the circuit board in a first direction, and the negative electrode portions are located at the other end of the circuit board in the first direction; wherein, each of the battery accommodating intervals has a positive electrode portion and a negative electrode portion respectively.

9. The charging and discharging integrated device according to claim 8, characterized in that, The housing also includes a lower housing portion, and the circuit board is connected to the lower housing portion and the upper housing portion respectively, and is located between the upper housing portion and the lower housing portion. The lower housing portion, the circuit board and the upper housing portion together constitute a charging and discharging chamber. The housing further includes an outer shell portion for accommodating the charging / discharging chamber.

10. A charging and discharging system, characterized in that, It includes multiple batteries and the charge / discharge integrated device according to any one of claims 1-9.

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