Charging cable integrated with function of intelligent switching between storage and power supply

Abstract

A charging cable integrated with the function of intelligent switching between storage and power supply. The charging cable comprises a storage circuit board (4), a power control board (3), an uplink device interface (1) and a downlink power supply interface (2), wherein the power control board (3) comprises a buck compensation circuit (32) and a power switching circuit (31); the uplink device interface (1) and the downlink power supply interface (2) are electrically connected to the power switching circuit (31); the power switching circuit (31) is connected in series to the buck compensation circuit (32) to supply power to the storage circuit board (4); the power switching circuit (31) realizes switching between supplying power from the uplink device interface (1) to the storage circuit board (4) and supplying power from the downlink power supply interface (2) to the storage circuit board (4); several grounded capacitors (321) are provided between the buck compensation circuit (32) and the storage circuit board (4) and between the power switching circuit (31) and the storage circuit board (4); and the capacitors (321) supply power to the storage circuit board (4) during discharge. With regard to the charging cable, when a device connected to the uplink device interface (1) is performing storage and read / write operations, the downlink power supply interface (2) is connected to an external power source or stops power supply, such that seamless power source switching is realized by means of the compensation of the capacitors (321), thereby preventing unexpected termination of operations caused by the power-down of a memory of the storage circuit board (4).

Description

A charging cable that integrates intelligent switching between storage and power supply Technical Field

[0001] This utility model relates to a charging cable, and more particularly to a charging cable that integrates intelligent switching between storage and power supply. Background Technology

[0002] For high-capacity portable storage devices such as mobile phones and computers, current portable hard drives have only one data transfer interface, which is also the interface for powering the portable hard drive. When mobile phones or computers need to be charged, especially mobile phones which only have one interface, the portable hard drive needs to be removed before charging.

[0003] Based on the above requirements, adding storage components to charging cables to create new products is a trend. However, powering mobile phones and other devices and powering storage components are two different power supply routes. Traditional solutions are too cumbersome, resulting in large product sizes. For users, charging cables are not very convenient to carry. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a charging cable that solves at least one of the above problems.

[0005] This utility model provides a charging cable that integrates intelligent switching between storage and power supply, including a storage circuit board, a power control board, an uplink device interface, and a downlink power supply interface;

[0006] The power control board includes a step-down compensation circuit and a power switching circuit. The uplink device interface and the downlink power supply interface are electrically connected to the power switching circuit. The power switching circuit is connected in series with the step-down compensation circuit to supply power to the storage circuit board.

[0007] The power switching circuit enables the switching between supplying power to the storage circuit board from the uplink device interface and supplying power to the storage circuit board from the downlink power interface;

[0008] Several grounded capacitors are provided at the node between the step-down compensation circuit, the power switching circuit, and the storage circuit board.

[0009] The capacitor supplies power to the storage circuit board when it discharges.

[0010] As a further embodiment of this utility model: the power switching circuit includes two sets of power switching circuits, and the two sets of power switching circuits allow the current to pass in opposite directions;

[0011] The step-down compensation circuit is connected in series between the nodes of the two sets of power supply switching circuits.

[0012] As a further embodiment of this utility model: the storage circuit board and the power control board are stacked together;

[0013] An electrical connector is provided between the storage circuit board and the power control board, and the storage circuit board and the power control board are electrically connected through the electrical connector.

[0014] As a further embodiment of this utility model: the power switching circuit includes a first interface connected to the step-down compensation circuit, a second interface electrically connected to the uplink device interface, and a third interface electrically connected to the downlink power supply interface.

[0015] As a further embodiment of this utility model: the power switching circuit also includes a fourth interface;

[0016] The power control board also includes a PD protocol chip, which is connected to the power switching circuit via the fourth interface.

[0017] The PD protocol chip is also signal-connected to the uplink device interface and the downlink power supply interface.

[0018] As a further embodiment of this utility model: the uplink device interface and the downlink power supply interface are USB connectors.

[0019] The charging cable described above combines a power switching circuit, a step-down compensation circuit, and a PD protocol chip, and has the following advantages: When the device connected to the uplink interface is performing storage read / write operations, and the downlink power supply interface is connected to an external power source or disconnected from the power supply, seamless power switching can be achieved through the capacitor of the step-down compensation circuit, preventing the memory on the storage circuit board from losing power and causing unexpected termination of operation. Attached Figure Description

[0020] Figure 1 is a block diagram illustrating an embodiment of the present invention.

[0021] Figure 2 is a diagram showing the positional relationship between the two circuit boards in an embodiment of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] As shown in Figures 1 and 2, this embodiment provides a charging cable with integrated intelligent switching between storage and power supply, including a storage circuit board 4, a power control board 3, an uplink device interface 1, and a downlink power supply interface 2. The uplink device interface 1 connects to devices such as mobile phones, computers, and tablets. These devices can identify and read the product's storage module, and in this case, the external device supplies power to the storage circuit board 4 through the uplink device interface 1. The downlink power supply interface 2 connects to external power sources such as power banks and power adapters, and in this case, power is supplied from the external power source to the device connected to the uplink device interface 1 and the storage circuit board 4 through the downlink power supply interface 2.

[0026] The power control board 3 includes a step-down compensation circuit 32 and a power switching circuit 31. The uplink device interface 1 and the downlink power supply interface 2 are electrically connected to the power switching circuit 31. The power switching circuit 31 is connected in series with the step-down compensation circuit 32 to supply power to the storage circuit board 4.

[0027] The power switching circuit 31 enables the switching between supplying power to the storage circuit board 4 from the uplink device interface 1 and supplying power to the storage circuit board 4 from the downlink power interface 2;

[0028] Several grounded capacitors 321 are provided at the node between the step-down compensation circuit 32, the power switching circuit 31, and the storage circuit board 4.

[0029] When the capacitor 321 discharges, it supplies power to the storage circuit board 4.

[0030] As a further embodiment of this utility model: the power switching circuit 31 includes two sets of power switching circuits, and the two sets of power switching circuits allow the current to pass in opposite directions;

[0031] The step-down compensation circuit 32 is connected in series between the nodes of the two sets of power supply switching circuits.

[0032] As a further embodiment of this utility model: the storage circuit board 4 and the power control board 3 are stacked;

[0033] An electrical connector 5 is provided between the storage circuit board 4 and the power control board 3, and the storage circuit board 4 and the power control board 3 are electrically connected through the electrical connector 5. After the storage circuit board 4 and the power control board 3 are separated, they are connected through the connector, which effectively isolates the mutual influence caused by the heat generation of the two modules, thereby improving the stability of the product and bringing a better product experience.

[0034] As a further embodiment of this utility model: the power switching circuit 31 includes a first interface connected to the step-down compensation circuit 32, a second interface electrically connected to the uplink device interface 1, and a third interface electrically connected to the downlink power supply interface 2.

[0035] As a further embodiment of this utility model, the power switching circuit 31 also includes a fourth interface;

[0036] The power control board 3 also includes a PD protocol chip 33, which is connected to the power switching circuit 31 via the fourth interface.

[0037] The PD protocol chip 33 is also signal-connected to the uplink device interface 1 and the downlink power supply interface 2.

[0038] As a further embodiment of this utility model: the uplink device interface 1 and the downlink power supply interface 2 are USB connectors.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A charging cable that integrates intelligent switching between storage and power supply, characterized in that: This includes the storage circuit board, power control board, uplink device interface, and downlink power supply interface; The power control board includes a step-down compensation circuit and a power switching circuit. The uplink device interface and the downlink power supply interface are electrically connected to the power switching circuit. The power switching circuit is connected in series with the step-down compensation circuit to supply power to the storage circuit board. The power switching circuit enables the switching between supplying power to the storage circuit board from the uplink device interface and supplying power to the storage circuit board from the downlink power interface; Several grounded capacitors are provided at the node between the step-down compensation circuit, the power switching circuit, and the storage circuit board. The capacitor supplies power to the storage circuit board when it discharges.

2. The charging cable as described in claim 1, characterized in that: The power switching circuit includes two sets of power switching circuits, and the two sets of power switching circuits allow current to flow in opposite directions. The step-down compensation circuit is connected in series between the nodes of the two sets of power supply switching circuits.

3. The charging cable as described in claim 1, characterized in that: The storage circuit board and the power control board are stacked together. An electrical connector is provided between the storage circuit board and the power control board, and the storage circuit board and the power control board are electrically connected through the electrical connector.

4. The charging cable as described in any one of claims 1-3, characterized in that: The power switching circuit includes a first interface connected to the step-down compensation circuit, a second interface electrically connected to the uplink device interface, and a third interface electrically connected to the downlink power supply interface.

5. The charging cable as described in claim 4, characterized in that: The power switching circuit also includes a fourth interface; The power control board also includes a PD protocol chip, which is connected to the power switching circuit via the fourth interface. The PD protocol chip is also signal-connected to the uplink device interface and the downlink power supply interface.

6. The charging cable as described in claim 4, characterized in that: The uplink device interface and the downlink power supply interface are USB connectors.

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