Multifunctional power management device with charging function and electronic desk calendar

Abstract

The utility model discloses a multifunctional power management device with a charging function and an electronic desk calendar, which comprises a front shell and a base with an accommodating cavity, and the front shell is rotationally connected onto the base; an electronic paper display screen is detachably mounted on one surface of the front shell; a power conversion unit and a battery charging management unit are arranged in the accommodating cavity of the base; an AC-DC conversion circuit integrated by the power conversion unit is detachably and electrically connected with an external AC power supply; the AC-DC conversion circuit is connected with the battery charging management unit; the battery charging management unit comprises a lithium battery, a lithium battery charging and discharging circuit and a power management chip PMIC; the AC-DC conversion circuit is connected with the lithium battery through the lithium battery charge-discharge circuit; the output ends of the AC / DC conversion circuit and the lithium battery are connected with a power management chip PMIC; the power management chip PMIC is detachably and electrically connected with external terminal powered equipment; and the power management chip PMIC is electrically connected with the electronic paper display screen. The multifunctional display of the power management device is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of power management devices for display devices, and in particular to a multifunctional power management device with charging and electronic desk calendar functions. Background Technology

[0002] Power adapters for desktop office electronic products are often placed on the desktop, resulting in messy wiring and limited functionality. This is redundant for users and detracts from desktop tidiness. Existing external power supply display products also have limited power adapter functionality, lacking power management and electronic calendar features. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional power management device with charging and electronic calendar functions, which combines an e-ink display screen with a power adapter to display customized messages.

[0004] The technical solution adopted in this utility model is:

[0005] A multifunctional power management device with charging and electronic desk calendar includes a front shell and a base with a receiving cavity. One side of the front shell is rotatably connected to one side of the upper surface of the base. An electronic paper display screen is detachably installed on the side of the front shell away from the base. The electronic paper display screen is used for displaying images when powered on and displaying static images when powered off.

[0006] The base houses a power conversion unit and a battery charging management unit. The power conversion unit integrates an AC-DC conversion circuit, the input of which is detachably connected to an external AC power source. The output of the AC-DC conversion circuit is connected to the battery charging management unit. The battery charging management unit includes a lithium battery, a lithium battery charging and discharging circuit, and a power management chip (PMIC). The output of the AC-DC conversion circuit is connected to the lithium battery via the lithium battery charging and discharging circuit. The outputs of the AC-DC conversion circuit and the lithium battery are connected to the power management chip (PMIC), and the output of the PMIC is detachably connected to an external terminal receiving device. The PMIC is also electrically connected to the electronic paper display screen.

[0007] Specifically, PMIC is an abbreviation for power management IC, which is a power management integrated circuit. Its main feature is high integration, which packages the traditional multi-output power supply into a single chip, making multi-power supply applications more efficient and smaller in size.

[0008] Furthermore, the base includes a lower base cover and an upper base cover. The opposite surfaces of the lower base cover and the upper base cover have receiving grooves. When the lower base cover and the upper base cover are fitted together, the receiving grooves of the lower base cover and the upper base cover together form the receiving cavity of the base.

[0009] Furthermore, the upper surface of the base is provided with a groove to accommodate the front shell. When the front shell is closed, it is stored in the groove, making the upper surface of the base flat overall.

[0010] Furthermore, a power input interface is provided on the outer side of the base corresponding to the input end of the power conversion unit; a power output interface is provided on the outer side of the base. Specifically, as a feasible implementation, a power input interface is provided at one end of the lower cover of the base corresponding to the input end of the power conversion unit; a power output interface is provided at the other end of the lower cover of the base.

[0011] Furthermore, the output of the power management chip (PMIC) is detachably electrically connected to an external terminal power receiving device via a power output interface.

[0012] Furthermore, the base also contains a PD decoy chip, and the power management chip PMIC supplies power to the PD decoy chip; the outer side of the base has a USB Type-C interface that is electrically connected to the electronic paper display; the PD decoy chip is electrically connected to the electronic paper display and simulates to provide power supply that conforms to the USB Type-C interface specification.

[0013] Furthermore, the electronic paper display includes a system board and a wireless communication unit, a sound unit, and a display screen connected to the system board; an external terminal of the wireless communication unit communicates with the system board of the electronic paper display through the wireless communication unit, the sound unit is used for audio playback, and the display screen is an electronic paper display. Furthermore, the system board of the electronic paper display is configured to integrate an electronic calendar program so that the electronic calendar is statically displayed when power is off.

[0014] Furthermore, the electronic paper display screen is fixed to the front shell by adhesive or glue; or the electronic paper display screen is fixed to the front shell by magnetic attraction; or the electronic paper display screen is fixed to the front shell by a snap-fit ​​mechanism.

[0015] Furthermore, the electronic paper display screen is rotatably connected to the base via a hinge; or the electronic paper display screen is rotatably connected to the base via a linkage mechanism.

[0016] This utility model adopts the above technical solution and has the following technical advantages: it uses a power adapter combined with an electronic paper display screen, which can adjust the display angle and can also be used as a desktop display device; the power adapter has standardized wiring, making the desktop simple and beautiful; the power adapter can be carried and used separately as a power bank to charge electronic products.

[0017] This invention combines lithium battery charging / discharging with an electronic paper display screen, providing customized message display. The flip-top structure allows for screen angle adjustment; it also features a common charging port, supporting single-unit charging and discharging, and can be used as a power bank. The electronic paper display screen is fixed to the flip-top of the power adapter using adhesive or hooks, and the flip-top uses a hinge structure to allow it to hover at any angle. The power adapter houses the power supply, system board, and lithium battery, supports power compatibility, and allows for battery charging and discharging via common power interfaces. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0019] Figure 1 This is an exploded view of the structure of a multifunctional power management device with charging and electronic desk calendar according to the present invention.

[0020] Figure 2 This is a schematic diagram of the outer side interface of the base of a multifunctional power management device with charging and electronic desk calendar according to this utility model.

[0021] Figure 3 This is a circuit diagram illustrating the principle of a multifunctional power management device with charging and electronic desk calendar according to this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figures 1 to 3 As shown in the figure, this utility model discloses a multifunctional power management device with charging and electronic desk calendar, which includes a front shell 1 and a base 2 with a receiving cavity. One side of the front shell 1 is rotatably connected to one side of the upper surface of the base 2. An electronic paper display screen 3 is detachably installed on the side of the front shell 1 away from the base 2. The electronic paper display screen 3 is used for displaying the image when powered on and displaying the static image when powered off.

[0024] The base 2 houses a power conversion unit and a battery charging management unit. The power conversion unit integrates an AC-DC conversion circuit, the input of which is detachably connected to an external AC power source. The output of the AC-DC conversion circuit is connected to the battery charging management unit. The battery charging management unit includes a lithium battery 7, a lithium battery charging and discharging circuit, and a power management chip (PMIC). The output of the AC-DC conversion circuit is connected to the lithium battery via the lithium battery charging and discharging circuit. The outputs of the AC-DC conversion circuit and the lithium battery are connected to the power management chip (PMIC), and the output of the power management chip (PMIC) is detachably connected to an external terminal receiving device. The power management chip (PMIC) is electrically connected to the electronic paper display screen 3.

[0025] Specifically, PMIC is an abbreviation for power management IC, which is characterized by high integration. It packages multiple power outputs traditionally found in a single chip, enabling higher efficiency and smaller size in multi-power supply applications. The wireless communication unit includes WiFi and Bluetooth chips.

[0026] Furthermore, the base 2 includes a lower base cover 21 and an upper base cover 22. The opposite surfaces of the lower base cover 21 and the upper base cover 22 have receiving grooves. When the lower base cover 21 and the upper base cover 22 are fitted together, the receiving grooves of the lower base cover 21 and the upper base cover 22 together form the receiving cavity of the base 2.

[0027] Furthermore, the upper surface of the base 2 is provided with a groove for accommodating the front shell 1. When the front shell 1 is closed, it is stored in the groove, making the upper surface of the base 2 flat overall.

[0028] Furthermore, a power input interface 4 is provided on the outer side of the base 2 corresponding to the input end of the power conversion unit; a power output interface 5 is provided on the outer side of the base 2. Specifically, as a feasible implementation, a power input interface 4 is provided at one end of the lower cover 21 of the base corresponding to the input end of the power conversion unit; a power output interface 5 is provided at the other end of the lower cover 21 of the base.

[0029] Furthermore, the output of the power management chip PMIC is detachably electrically connected to an external terminal power receiving device via the power output interface 5.

[0030] Furthermore, the base 2 is equipped with a PD decoy chip, and the power management chip PMIC supplies power to the PD decoy chip; the outer side of the base 2 is equipped with a USB Type-C interface 6 that is electrically connected to the electronic paper display screen 3; the PD decoy chip is electrically connected to the electronic paper display screen 3 and simulates to provide power supply that conforms to the USB Type-C interface specification.

[0031] Specifically, a PD decoy chip, short for Power Delivery (PD) decoy chip, is a chip that can simulate a Power Delivery Unit (PDIC) compliant with the USB Type-C interface 6 specification. By using a PD decoy chip, small home appliances can manage multiple charging methods, such as 9V, 12V, 15V, and 20V, thereby ensuring that the device receives the best charging experience.

[0032] Furthermore, the electronic paper display screen 3 includes a system board 6 and a wireless communication unit, a sound unit, and a display screen connected to the system board; an external terminal of the wireless communication unit communicates with the system board of the electronic paper display screen 3 through the wireless communication unit, the sound unit is used for audio playback, and the display screen is the electronic paper display screen 3. Furthermore, the system board of the electronic paper display screen 3 is configured to integrate an electronic calendar program so that the electronic calendar can be statically displayed when power is off.

[0033] Furthermore, the electronic paper display screen 3 is fixed to the front shell 1 by adhesive or glue; or the electronic paper display screen 3 is fixed to the front shell 1 by magnetic attraction; or the electronic paper display screen 3 is fixed to the front shell 1 by a snap-fit ​​mechanism. The display image of the electronic paper display screen 3 is displayed on the outer side.

[0034] Furthermore, the electronic paper display screen 3 is rotatably connected to the base 2 via a hinge; or the electronic paper display screen 3 is rotatably connected to the base 2 via a linkage mechanism.

[0035] This utility model incorporates an electronic desk calendar and electronic paper display system. Its main functions include displaying an electronic desk calendar. As an auxiliary office screen, it transmits customized auxiliary display content from the terminal system via Type-C to the desk calendar for display and control. The AC-DC power conversion unit converts AC mains power into DC output. The battery charging and discharging management system integrates a PD protocol chip, which, according to the communication needs of the terminal device, converts the power current into the corresponding voltage and current output via the PMIC to meet the requirements of the terminal device. When working from home, connecting to AC mains power allows the AC-DC power module to directly charge the lithium battery module and output the corresponding voltage and current according to the terminal device's requirements. When carried outdoors, it functions as a temporary power bank, connecting to the terminal device and discharging the lithium battery, with the power management PMIC module stepping up and down the voltage to the device's requirements.

[0036] This utility model adopts the above technical solution and has the following technical advantages: the power adapter combined with the electronic paper display screen 3 can adjust the display angle and can also be used as a desktop display device; the power adapter has standardized wiring, making the desktop simple and beautiful; the power adapter can be carried and used separately as a power bank to charge electronic products.

[0037] This invention combines lithium battery charging / discharging with an electronic paper display screen 3 to provide customized message display. The flip-top structure allows for screen angle adjustment; it also features a common charging port, supports single-unit charging / discharging, and can be used as a power bank. The electronic paper display screen 3 is fixed to the flip-top of the power adapter using adhesive or hooks, and the flip-top uses a hinge structure to allow it to hover at any angle. The power adapter houses the power supply, system board, and lithium battery, supports power compatibility, and allows for battery charging / discharging via common power interfaces.

[0038] Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The components of the embodiments of this application described and illustrated herein can generally be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A multifunctional power management device with charging and electronic desk calendar functions, characterized in that: It includes a front shell and a base with a receiving cavity. One side of the front shell is rotatably connected to one side of the upper surface of the base. An electronic paper display screen is detachably installed on the side of the front shell away from the base. The electronic paper display screen is used for displaying images when powered on and displaying static images when powered off. The base housing contains a power conversion unit and a battery charging management unit; the power conversion unit integrates an AC-DC conversion circuit, the input of which is detachably electrically connected to an external AC power source; the output of the AC-DC conversion circuit is connected to the battery charging management unit; the battery charging management unit includes a lithium battery, a lithium battery charging and discharging circuit, and a power management chip (PMIC); the output of the AC-DC conversion circuit is connected to the lithium battery through the lithium battery charging and discharging circuit. The output terminals of the AC-DC conversion circuit and the lithium battery are connected to the power management chip (PMIC). The output terminal of the PMIC is detachably electrically connected to the external terminal power receiving device. The PMIC is also electrically connected to the electronic paper display screen.

2. The multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The base includes a lower base cover and an upper base cover. The opposite surfaces of the lower base cover and the upper base cover have receiving grooves. When the lower base cover and the upper base cover are fitted together, the receiving grooves of the lower base cover and the upper base cover together form the receiving cavity of the base.

3. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The upper surface of the base has a groove to accommodate the front cover. When the front cover is closed, it is stored in the groove, making the upper surface of the base flat.

4. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The outer side of the base has a power input interface corresponding to the input end of the power conversion unit; the outer side of the base has a power output interface; the output end of the power management chip (PMIC) is detachably electrically connected to the external terminal power receiving device through the power output interface.

5. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The base also contains a PD decoy chip, and the power management chip PMIC supplies power to the PD decoy chip; the outer side of the base has a USB Type-C interface that is electrically connected to the electronic paper display; the PD decoy chip is electrically connected to the electronic paper display and simulates to provide power to the electronic paper display in accordance with the USB Type-C interface specification.

6. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The electronic paper display includes a system board and a wireless communication unit, a sound unit, and a display screen connected to the system board. The external terminal of the wireless communication unit communicates with the system board of the electronic paper display through the wireless communication unit. The sound unit is used for audio playback, and the display screen is an electronic paper display.

7. A multifunctional power management device with charging and electronic desk calendar according to claim 6, characterized in that: The system board of the electronic paper display is configured to integrate an electronic desk calendar program so that the electronic desk calendar can be displayed statically when the power is off.

8. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The electronic paper display screen is fixed to the front shell by adhesive or glue; or the electronic paper display screen is fixed to the front shell by magnetic attraction; or the electronic paper display screen is fixed to the front shell by a snap-fit ​​mechanism.

9. A multifunctional power management device with charging and electronic desk calendar according to claim 1, characterized in that: The electronic paper display screen is rotatably connected to the base via a hinge; or the electronic paper display screen is rotatably connected to the base via a linkage mechanism.

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