Two-way charging device and XR equipment

Abstract

The utility model discloses a two-way charging device and XR equipment, the two-way charging device is connected with an XR host, and the two-way charging device comprises a cell, a power management module, a power input end used for being connected with a power adapter, and an output connector port used for being connected with the XR host; the power supply management module is connected with the power supply input end and the output connector port, the power supply management module comprises a main controller, a first charging management circuit and a second charging management circuit, the power supply input end and the output connector port are connected with the main controller, and the main controller is connected with the first charging management circuit and the second charging management circuit. The first charging management circuit is connected with a port of the output connector, the first charging management circuit charges the XR host through voltage increasing and decreasing adjustment, the second charging management circuit is connected with the battery cell, and the second charging management circuit charges the battery cell through voltage increasing and decreasing adjustment. And the battery cell is connected with the output connector port.

Description

Technical Field

[0001] The utility model relates to the technical field of XR device charging, in particular to a dual - path charging device and an XR device. Background Art

[0002] XR (Extended Reality) refers to the combination of reality and virtuality through a computer to create a virtual environment for human - machine interaction, which is a collective term for various technologies such as AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality). The battery capacity of the existing XR host is small, and the battery life is short. The XR headband can increase the battery life of the XR host, extend the time for users to play XR games, and improve the user experience. However, the charging efficiency of the existing XR headband is slow and still fails to meet the battery life requirements of the XR host. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a dual - path charging device and an XR device to improve the charging efficiency.

[0004] In a first aspect, the utility model provides a dual - path charging device connected to an XR host, which includes a battery cell, a power input terminal, an output connector port, and a power management module. The power input terminal is used to connect to a power adapter; the output connector port is used to connect to the XR host; the power management module is connected to the power input terminal and the output connector port. The power management module includes a main controller, a first charging management circuit, and a second charging management circuit. The power input terminal and the output connector port are connected to the main controller. The main controller is respectively connected to the first charging management circuit and the second charging management circuit to control the operation of the first charging management circuit and the second charging management circuit. The first charging management circuit is connected to the output connector port, and the first charging management circuit charges the XR host through buck - boost adjustment. The second charging management circuit is connected to the battery cell, and the second charging management circuit charges the battery cell through buck - boost adjustment. The battery cell is connected to the output connector port.

[0005] In a second aspect, the utility model also provides an XR device, which includes the above - mentioned dual - path charging device and an XR host, and the dual - path charging device is connected to the XR host.

[0006] The beneficial technical effects of the present utility model are as follows: The dual-channel charging device of the present utility model realizes the synchronous charging of the XR host and the battery cell of the dual-channel charging device by setting a power management module including a main controller, a first charging management circuit, and a second charging management circuit. The first charging management circuit adjusts the voltage through buck-boost to charge the XR host connected to the output connector port of the dual-channel charging device, and the second charging management circuit adjusts the voltage through buck-boost to charge the battery cell of the dual-channel charging device. Moreover, the operation of the first charging management circuit and the second charging management circuit can be controlled by the main controller according to requirements, so as to improve the charging efficiency of the XR host and the battery cell. The XR device of the present utility model also has the above functions and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1 It is a schematic framework diagram of the dual-channel charging device provided by the present utility model;

[0009] Figure 2 It is a schematic framework diagram of a specific embodiment of the dual-channel charging device provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0010] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0011] Please refer to Figure 1 , Figure 1Schematic diagram of the framework of the dual-channel charging device provided by the present utility model. The dual-channel charging device 10 is connected to the XR host and includes a battery cell 11, a power input end 12, an output connector port 13, and a power management module 14. The power input end 12 is used to connect to a power adapter; the output connector port 13 is used to connect to the XR host; the power management module 14 is connected to the power input end 12 and the output connector port 13. The power management module 14 includes a main controller 143, a first charging management circuit 141, and a second charging management circuit 142. The power input end 12 and the output connector port 13 are connected to the main controller 143. The main controller 143 is respectively connected to the first charging management circuit 141 and the second charging management circuit 142 to control the operation of the first charging management circuit 141 and the second charging management circuit 142. The first charging management circuit 141 is connected to the output connector port 13. The first charging management circuit 141 charges the XR host through buck-boost adjustment. The second charging management circuit 142 is connected to the battery cell 11. The second charging management circuit 142 charges the battery cell 11 through buck-boost adjustment. The battery cell 11 is connected to the output connector port 13.

[0012] Among them, the main controller 143 supports the PD (Power Delivery) protocol and the QC (Quick Charge) protocol, enabling the circuit to achieve fast charging function. The Power Delivery (abbreviated as PD) protocol is a power transmission protocol based on the USB Type-C interface. It adopts a two-way communication mechanism, allowing devices to negotiate voltage and current to achieve a more flexible charging solution. By using the Type-C interface, the PD protocol can achieve higher charging speed and higher energy transmission efficiency. The Quick Charge (abbreviated as QC) protocol is a high-voltage fast charging technology based on the USB Type-A interface, which adds a special chip to the USB cable. The QC protocol allows communication between the charger and the device to determine the optimal charging rate. The main controller 143 can use a chip with the model number CS32G020. The power input terminal 12 can be an input Type-C connector port, and the output connector port 13 can be an output Type-C connector port. The dual-channel charging device 10 is provided with a power management module 14 including a main controller 143, a first charging management circuit 141, and a second charging management circuit 142. The first charging management circuit 141 is used to charge the XR host connected to the output connector port 13 of the dual-channel charging device 10 through buck-boost adjustment, and the second charging management circuit 142 is used to charge the battery cell 11 of the dual-channel charging device 10 through buck-boost adjustment, realizing the synchronous charging of the XR host and the battery cell 11 of the dual-channel charging device 10. Moreover, the operation of the first charging management circuit 141 and the second charging management circuit 142 can be controlled by the main controller 143 according to requirements to improve the charging efficiency of the XR host and the battery cell 11. The charging process of the battery cell 11 is independent; in addition, the battery cell 11 is connected to the output connector port 13 so that the battery cell 11 can be controlled to charge the XR host, ensuring that the power output from the output connector port 13 is optimal regardless of the charging power input by the power adapter, further improving the charging efficiency of the XR host.

[0013] Specifically, the first charging management circuit 141 is connected to the output connector port 13 to provide an optimal XR host charging current to the output connector port 13 through buck-boost adjustment; wherein, the optimal XR host charging current is the charging current value corresponding to the charging current or charging voltage value when the charging efficiency of the XR host is the best. The optimal XR host charging current is obtained based on the charging power input by the power adapter and the charging power required by the XR host. The charging power required by the XR host changes with the battery power status of the XR host. When the battery power of the XR host is relatively high, the charging power required by the XR host becomes lower. When the charging power input by the power adapter is not lower than the charging power required by the XR host, as the charging of the XR host progresses, the charging power required by the XR host becomes lower in the later stage of the XR host's charging, and the difference between the charging power input by the power adapter and the charging power required by the XR host becomes larger. To maintain the best charging efficiency of the XR host, more of the charging power input by the power adapter is used to charge the battery cell 11 of the dual-channel charging device 10 in the later stage of the XR host's charging, and the charging current corresponding to the charging power required by the XR host is provided to the XR host. When the charging power input by the power adapter is lower than the charging power required by the XR host, as the charging of the XR host progresses, the charging power required by the XR host becomes lower in the later stage of the XR host's charging. If the charging power input by the power adapter at this time is still lower than the charging power required by the XR host, the difference between the charging power input by the power adapter and the charging power required by the XR host becomes smaller. To maintain the best charging efficiency of the XR host, the charging power of the battery cell 11 charging the XR host is reduced, and the charging power input by the power adapter provides the charging power input by the power adapter to the XR host, so as to provide the charging current corresponding to the charging power required by the XR host to the XR host. If the charging power input by the power adapter at this time is not lower than the charging power required by the XR host, to maintain the best charging efficiency of the XR host, the charging power other than the charging power required by the XR host in the charging power input by the power adapter is provided to charge the battery cell 11 of the dual-channel charging device 10, and the charging current corresponding to the charging power required by the XR host is provided to the XR host.

[0014] Specifically, the second charging management circuit 142 is connected to the battery cell 11 to provide an optimal battery cell charging current to the battery cell 11 through buck-boost adjustment; wherein, the optimal battery cell charging current is the charging current value corresponding to the charging current or charging voltage value when the charging efficiency of the battery cell 11 is the best. The optimal battery cell charging current is obtained based on the charging power input by the power adapter, and the voltage value and current value of the corresponding gear are selected according to the charging power input by the power adapter.

[0015] Refer to Figure 2, specifically, the first charging management circuit 141 includes a first DC / DC controller, and the first DC / DC controller is connected to the main controller 143, the power input terminal 12, and the output connector port 13.

[0016] Specifically, the second charging management circuit 142 includes a second DC / DC controller, and the second DC / DC controller is connected to the main controller 143, the power input terminal 12, and the battery cell 11. Among them, the second DC / DC controller can adopt a charging chip with the model number SC8910.

[0017] Preferably, the second DC / DC controller is connected to the battery cell 11 through a battery protection circuit 15. Among them, the battery protection circuit 15 can include a PCM protection board. By implementing the overcharge protection function, over-discharge protection function, and over-current protection function of the battery cell 11, faults such as short circuits can be avoided, thereby improving the use safety of the battery cell 11 and prolonging the service life of the battery cell 11. The input current of the power input terminal 12 can be connected to the second DC / DC controller through a switching tube, the second DC / DC controller is connected to the battery cell 11 through the battery protection circuit 15, and the control end of the switching tube is connected to the main controller 143 to perform step-up and step-down adjustment on the obtained input current through the second DC / DC controller and output a second charging current to the battery cell 11 for charging.

[0018] Specifically, the power input terminal 12 is connected to the first charging management circuit 141 through a first charging switch 16, and the main controller 143 is connected to the first charging switch 16 to control the operation of the first charging switch 16.

[0019] Specifically, the battery cell 11 is connected to the output connector port 13 through a second charging switch 17 to charge the XR host. The main controller 143 is connected to the second charging switch 17 to control the operation of the second charging switch 17, thereby controlling the battery cell 11 to charge the XR host. Preferably, the battery cell 11 can be connected to the second charging switch 17 through the battery protection circuit 15. Of course, in some embodiments, the battery cell 11 can be connected to the output connector port 13 through the battery protection circuit 15 and the second charging switch 17 and then through the first charging management circuit 141.

[0020] Specifically, the dual - path charging device 10 further includes a power - quantity indicating circuit and an over - temperature protection circuit, and the power - quantity indicating circuit and the over - temperature protection circuit are connected to the main controller 143. Among them, the main controller 143 can be connected to the battery cell 11 to detect the power - quantity state of the battery cell 11 through the main controller 143 and control the operation of the power - quantity indicating circuit to achieve the display of the power - quantity state. The over - temperature protection circuit includes a thermistor to detect the temperature of the overall circuit through the thermistor and control the operating state of the overall circuit according to the temperature condition.

[0021] Specifically, the present utility model provides an XR device, including the dual - path charging device 10 described above and an XR host, and the dual - path charging device 10 is connected to the XR host.

[0022] Based on the above design, during operation, the main controller obtains the input current input by the power adapter through the power input terminal; performs buck - boost processing on the obtained input current through the first charging management circuit to generate a first charging current and charge the XR host through the output connector port; performs buck - boost processing on the obtained input current through the second charging management circuit to generate a second charging current and charge the battery cell.

[0023] When the charging power input by the power adapter is lower than the charging power required by the XR host, the main controller controls the first charging switch connected between the current input terminal and the first charging management circuit to conduct, controls the first charging management circuit to perform buck - boost processing on the obtained input current to generate a first charging current and charge the XR host through the output connector port with the charging power input by the power adapter; controls the second charging switch connected between the battery cell and the output connector port to conduct, controls the battery cell to provide an auxiliary charging power corresponding to the power difference between the charging power required by the XR host and the charging power input by the power adapter to the XR host through the output connector port, and controls the second charging management circuit connected to the battery cell to turn off to stop charging the battery cell; at this time, the input current input by the power adapter is all used to charge the XR host and the battery cell also charges the XR host to improve the charging efficiency of the XR host, and the XR host is in the charging state while the battery cell is in the discharging state.

[0024] When the charging power input by the power adapter is not less than the charging power required by the XR host, the main controller controls the first charging switch connected between the current input end and the first charging management circuit to conduct, controls the first charging management circuit to perform buck-boost processing on the obtained input current, generates a first charging current, and provides the charging power required by the XR host to the XR host through the output connector port for charging; it is judged whether the charging power input by the power adapter is less than the sum of the charging power required by the XR host and the charging power required by the battery cell. When the charging power input by the power adapter is not less than the charging power required by the XR host and less than the sum of the charging power required by the XR host and the charging power required by the battery cell, it controls the second charging management circuit to perform buck-boost processing on the obtained input current, generates a second charging current, and provides the battery cell charging power corresponding to the power difference between the charging power input by the power adapter and the charging power required by the XR host to the battery cell for charging; when the charging power input by the power adapter is not less than the charging power required by the XR host and not less than the sum of the charging power required by the XR host and the charging power required by the battery cell, it controls the second charging management circuit to perform buck-boost processing on the obtained input current, generates a second charging current, and provides the charging power required by the battery cell to the battery cell for charging. At this time, the input current input by the power adapter is used to charge the XR host and the battery cell, and the charging power of the XR host is preferentially ensured to improve the charging efficiency of the XR host. The charging of the battery cell is carried out separately, and both the XR host and the battery cell are in the charging state.

[0025] When the XR host finishes charging, the main controller controls the first charging switch connected between the current input end and the first charging management circuit to turn off to stop charging the XR host, and controls the second charging management circuit to perform buck-boost processing on the obtained input current, generates a second charging current, and charges the battery cell.

[0026] In summary, the dual-channel charging device of the present invention realizes synchronous charging of the XR host and the battery cell of the dual-channel charging device by setting a power management module including a main controller, a first charging management circuit, and a second charging management circuit, and uses the first charging management circuit to charge the XR host connected to the output connector port of the dual-channel charging device through buck-boost adjustment, and uses the second charging management circuit to charge the battery cell of the dual-channel charging device through buck-boost adjustment. Moreover, the operation of the first charging management circuit and the second charging management circuit can be controlled by the main controller according to requirements to improve the charging efficiency of the XR host and the battery cell. The XR device of the present invention also has the above functions and has strong practicability.

[0027] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A dual-channel charging device, characterized in that, Connected to the XR host, including: Battery cell; Power input terminal, used to connect to a power adapter; Output connector port, used to connect to the XR host; Power management module, connected to the power input terminal and the output connector port. The power management module includes a main controller, a first charging management circuit, and a second charging management circuit. The power input terminal and the output connector port are connected to the main controller. The main controller is respectively connected to the first charging management circuit and the second charging management circuit to control the operation of the first charging management circuit and the second charging management circuit. The first charging management circuit is connected to the output connector port. The first charging management circuit charges the XR host through buck-boost adjustment. The second charging management circuit is connected to the battery cell. The second charging management circuit charges the battery cell through buck-boost adjustment. The battery cell is connected to the output connector port.

2. The dual-channel charging device according to claim 1, wherein The first charging management circuit is connected to the output connector port to provide the optimal XR host charging current to the output connector port through buck-boost adjustment; wherein, the optimal XR host charging current is the charging current corresponding to the charging current value or charging voltage value when the charging efficiency of the XR host is the best.

3. The dual-channel charging device according to claim 1, characterized in that The first charging management circuit includes a first DC / DC controller, and the first DC / DC controller is connected to the main controller, the power input terminal, and the output connector port.

4. The dual-channel charging device according to claim 1, characterized in that, The second charging management circuit is connected to the battery cell to provide the optimal battery cell charging current to the battery cell through buck-boost adjustment; wherein, the optimal battery cell charging current is the charging current corresponding to the charging current value or charging voltage value when the charging efficiency of the battery cell is the best.

5. The dual-channel charging device according to claim 1, wherein The second charging management circuit includes a second DC / DC controller, and the second DC / DC controller is connected to the main controller, the power input terminal, and the battery cell.

6. The dual-channel charging device according to claim 5, wherein The second DC / DC controller is connected to the battery cell through a battery protection circuit.

7. The dual-channel charging device according to claim 1, wherein The power input terminal is connected to the first charging management circuit through a first charging switch, and the main controller is connected to the first charging switch to control the operation of the first charging switch.

8. The dual-channel charging device according to claim 1, characterized in that, The battery cell is connected to the output connector port through a second charging switch to charge the XR host, and the main controller is connected to the second charging switch to control the operation of the second charging switch.

9. The dual-channel charging device according to claim 1, wherein The dual-channel charging device further includes a power indication circuit and an over-temperature protection circuit, and the power indicator light circuit and the over-temperature protection circuit are connected to the main controller.

10. An XR device, characterized in that, Including the dual-channel charging device according to any one of claims 1-9 and an XR host, and the dual-channel charging device is connected to the XR host.

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