Multi-interface integrated portable charger

Abstract

The utility model belongs to the technical field of chargers, and discloses a multi-interface integrated portable charger, which comprises a main circuit board and a charging circuit, and is characterized in that the main circuit board is provided with a power input interface; the bottom of the U shape is connected with the main circuit board; a plurality of charging interfaces, a network cable interface and an HDMI (High Definition Multimedia Interface) are further included, and notches matched with the charging interfaces are formed in one side of the U-shaped circuit board; the other side of the U-shaped circuit board is provided with a plurality of other notches matched with the network cable interface and the HDMI interface, and the charging interface, the network cable interface and the HDMI interface are correspondingly installed in the notches. The multifunctional mobile terminal comprises the charging interface, the network cable interface and the HDMI interface, various requirements of users for charging, internet surfing, data transmission, video output and projection demonstration are met, the users often do not need to carry various devices when on a business trip, management and storage are facilitated, the cleanliness of a desktop is improved, the charging requirements of multiple devices can be integrated on one device, and the charging efficiency is improved. Therefore, space is saved, and a tabletop is kept clean.

Description

Technical Field

[0001] The utility model relates to a portable charger with multiple integrated interfaces, belonging to the technical field of chargers. Background Art

[0002] Desktop chargers are charging devices that can be placed on the desktop. With the increasing number of electronic products, the demand for chargers is also increasing. Mobile phones, tablets, laptops, Bluetooth headsets, massage pillows, game consoles, etc. all need to be charged. Desktop power strips are often not enough, and the chargers are fully plugged in, with cables of different thicknesses, colors, and lengths, which looks very messy. When users are on business trips, they often need to carry various adapters for device charging, Internet access, data transmission, etc., which is inconvenient to manage and store. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a multi-interface integrated charger, including a charging interface, a network cable interface and an HDMI interface, to meet the user's various needs for multi-device charging, Internet access, data transmission, video output and projection demonstration. Users often do not need to carry various devices when traveling, which facilitates management and storage.

[0004] To achieve the above-mentioned purpose, the utility model provides a portable charger with multi-interface integration, including: a main circuit board and a charging circuit, the main circuit board is provided with a power input interface, and the charging circuit is electrically connected to the main circuit board; a U-shaped circuit board constructed by three secondary circuit boards, the U-shaped circuit board is electrically connected to the main circuit board, and the bottom of the U shape is connected to the main circuit board; it also includes a plurality of charging interfaces, network cable interfaces and HDMI interfaces, one side of the U-shaped circuit board is provided with a notch adapted to the charging interface, and the charging interface is installed in the corresponding groove; the other side of the U-shaped circuit board is provided with a plurality of other notches adapted to the network cable interface and the HDMI interface, and the network cable interface and the HDMI interface are installed in the corresponding groove.

[0005] Furthermore, as a more preferred implementation scheme of the utility model, the charging interface includes a socket body, and bending parts are respectively provided on both sides and ends of the socket body. A slot matching the bending part is provided on the outer edge of the groove of the U-shaped circuit board, and the bending part can be inserted into the slot and fixed by welding.

[0006] Furthermore, as a more preferred embodiment of the utility model, it also includes a power-on indicator light. The U-shaped circuit board is provided with a power-on indicator light on a side close to the charging port, and the power-on indicator light is electrically connected to the U-shaped circuit board.

[0007] Furthermore, as a more preferred embodiment of the utility model, it includes a shell and a shell cover, and openings are respectively provided on both sides of the shell; the opening is detachably installed with a shell cover; the shell cover is respectively provided with installation grooves similar to the power input interface, charging interface, network cable interface and HDMI interface.

[0008] Furthermore, as a more preferred implementation scheme of the present invention, the charging interface includes a USB Host interface, a USB C PD interface and a USB A QC interface; the maximum charging power of the USB Host interface is set to 100W, that of the USB C PD interface is 30W, and that of the USB A QC interface is 18W.

[0009] Furthermore, as a more preferred implementation scheme of the utility model, when the charging interface is connected to two power-consuming devices, the power consumption of the USB Host interface and the USB C PD interface are 65W and 30W respectively, or the USB Host interface and the USB A QC interface are 100W and 5W respectively, or the USB C PD interface and the USB A QC interface are 30W and 18W respectively.

[0010] Furthermore, as a more preferred implementation scheme of the present invention, when the charging interface is connected to three power-consuming devices, the power consumption of the USB Host interface, the USB C PD interface and the USB A QC interface are respectively: 65W, 30W and 5W.

[0011] Furthermore, as a more preferred embodiment of the present invention, it also includes a USB C interface, which is USB3.0, does not participate in power distribution, and is used for data transmission.

[0012] Furthermore, as a more preferred embodiment of the present invention, the shell cover includes an anti-scratch plate arranged in the middle of the shell cover, and the mounting grooves of the charging interface are evenly distributed on the anti-scratch plate.

[0013] Furthermore, as a more preferred embodiment of the utility model, the shell cover also includes a light guide plate, the anti-scratch plate is provided with a through groove, the middle part of the light guide plate is provided with a protrusion adapted to the through groove, the protrusion is inserted into the through groove, the light guide plate and the inner wall of the anti-scratch plate are detachably connected, and the power-on indicator light is arranged in the U-shaped circuit board, and the position corresponds to the protrusion.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The utility model includes a charging interface, a network cable interface and an HDMI interface to meet the user's various needs for charging, Internet access, data transmission, video output and projection demonstration. Users often do not need to carry various devices when traveling, which is convenient for management and storage, and improves the neatness of the desktop. The charging needs of multiple devices can be concentrated on one device, thereby saving space and keeping the desktop tidy.

[0016] 2. The charging interface of the utility model is arranged in the notch, which effectively reduces the space occupied by both sides of the U-shaped circuit board. The bending part is inserted into the slot of the U-shaped circuit board and then fixed by welding, thereby improving the stability and durability of the charging interface connection.

[0017] 3. The charging interface of the utility model includes a USB Host interface, a USB C PD interface and a USB A QC interface, which can meet the charging needs of multiple devices. Multi-port charging can support fast charging of multiple devices such as laptops, tablets, mobile phones, etc. at the same time, greatly improving the charging efficiency and convenience. Support high-power fast charging, the USB Host interface supports high-power fast charging up to 100W, which can provide fast charging for laptops, iPads, mobile phones and other devices, greatly shortening the charging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the partial structural schematic diagrams of the portable charger with multi-interface integration according to the embodiment.

[0019] Figure 2 This is the second partial structural diagram of the portable charger with multi-interface integration according to the embodiment.

[0020] Figure 3 This is the third partial structural diagram of the portable charger with multi-interface integration according to the embodiment.

[0021] Figure 4 Schematic diagram of a charging circuit module according to an embodiment.

[0022] Figure 5 This is the fourth partial structural diagram of the portable charger with multi-interface integration according to the embodiment.

[0023] Figure 6 This is the fifth partial structural diagram of the portable charger with multi-interface integration according to the embodiment.

[0024] Reference numerals:

[0025] 1-main circuit board, 11-power input interface;

[0026] 2-charging circuit, 21-EMC filter circuit, 22-rectifier filter circuit, 23-conversion transformer circuit, 24-control loop, 241-voltage feedback circuit, 242-PWM control conversion circuit;

[0027] 3-secondary circuit board; 31-first circuit board, 32-second circuit board, 33-third circuit board, 34-rod;

[0028] 4-charging port, 41-socket body, 42-bending part, 43-USB Host port, 44-USB C PD port, 45-USB A QC port, 46-USB C;

[0029] 5- Network cable interface;

[0030] 6-HDMI interface;

[0031] 7-power-on indicator light; 8-housing, 9-housing cover, 91-mounting groove, 92-anti-scratch plate, 921-through groove, 93-light guide plate, 931-protrusion. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0033] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0034] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0036] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0037] Example

[0038] This embodiment is intended to promote the solution of the problem that when users are on business trips, they often need to carry various adapter devices for device charging, Internet access, data transmission, etc., which is inconvenient to carry, manage and store. The utility model is provided with a plurality of charging interfaces 4, network cable interfaces 5 and HDMI interfaces 6 to meet the various needs of users for charging, Internet access, data transmission, video output and projection demonstration. Users often do not need to carry various devices when they are on business trips, which is convenient for management and storage, improves the neatness of the desktop, and can concentrate the charging needs of multiple devices on one device, thereby saving space and keeping the desktop neat.

[0039] Reference Figure 1 and 2 As shown, a portable charger with multiple interfaces integrated includes: a main circuit board 1, a charging circuit 2 and a secondary circuit board 3, the main circuit board 1 is provided with a power input interface 11, and the charging circuit 2 is electrically connected to the main circuit board 2; a U-shaped circuit board constructed by three secondary circuit boards 3, the U-shaped circuit board is electrically connected to the main circuit board 1, and the bottom of the U shape is connected to the main circuit board 1; it also includes a plurality of charging interfaces 4, a network cable interface 5 and an HDMI interface 6, one side of the U-shaped circuit board is provided with a notch adapted to the charging interface 4, and the charging interface 4 is installed in the corresponding notch; the other side of the U-shaped circuit board is provided with a plurality of other notches adapted to the network cable interface 5 and the HDMI interface 6, and the network cable interface 5 and the HDMI interface 6 are installed in the corresponding notch.

[0040] Reference Figure 1 , 2 As shown in Figure 3, three secondary circuit boards 3 include a first circuit board 31, a second circuit board 32 and a third circuit board 33. The first circuit board 31 and the second circuit board 32 are parallel to each other, and one end is vertically connected to the third circuit board 33, and the other end is connected by a rod 34. It should be supplemented that the first circuit board 31 and the second circuit board 32 can be used to weld various components, and there is no need to weld components on the outside to reduce the space occupied by the two sides of the U-shape, thereby reducing the overall space.

[0041] The multi-interface integrated portable charger of this embodiment also includes an HDMI connector: used to achieve connection between devices, connected from the HDMI interface 6, and output signals from the charging interface 4. The HDMI connector can adopt the latest version HDMI 2.1, which supports a maximum resolution of 10K and a refresh rate of 120Hz. It also includes an adapter, which is used to achieve compatibility and connection between different formats.

[0042] Reference Figure 4 As shown, the charging circuit 2 of this embodiment includes: an EMC (Electro Magnetic Compatibility) filter circuit 21, a rectifier filter circuit 22, a conversion transformer circuit 23, and a control circuit 24. The charging circuit 2 is electrically connected to the power input interface 11 and the charging connector respectively; the control circuit 24 includes a voltage feedback circuit 241 and a PWM (Pulse Width Modulation) control conversion circuit 242; the PWM control conversion circuit 242 includes a PWM conversion circuit and a PWM control circuit integrated in the same chip package.

[0043] The power input interface 11 is connected to the power supply and outputs the power signal to the EMC filter circuit 21; the EMC filter circuit 21 filters the input electrical signal and outputs it to the rectifier filter circuit 22; the rectifier filter circuit 22 rectifies and filters the input electrical signal and outputs it to the conversion transformer circuit 23; the conversion transformer circuit 23 converts the input electrical signal into voltage and outputs it to the charging connector; the voltage feedback circuit 241 feeds back the electrical signal of the rectifier filter circuit 22 to the PWM control conversion circuit 242; after receiving the feedback signal, the PWM control conversion circuit 242 outputs a control signal to the conversion transformer circuit 23 to control the energy output of the conversion transformer circuit 23. The PWM conversion circuit and the PWM control circuit can be integrated into a control chip to meet the stable output of the power supply.

[0044] Reference Figure 5 As shown, in order to increase the service life of the charging interface 4 and prevent it from loosening after multiple plugging and unplugging, the charging interface 4 of this embodiment includes a socket body 41, and bending portions 42 are respectively provided on both sides and ends of the socket body 41. A slot that is compatible with the bending portion 42 is provided on the outer edge of the notch of the U-shaped circuit board, and the bending portion 42 can be inserted into the slot and fixed by welding.

[0045] Reference Figure 3 As shown, the multi-interface integrated portable charger of this embodiment further includes a power-on indicator light 7. The power-on indicator light 7 is provided on a side of the U-shaped circuit board close to the charging interface 4, and the power-on indicator light 7 is electrically connected to the U-shaped circuit board.

[0046] Reference Figure 6As shown, the multi-interface integrated portable charger of this embodiment further includes a shell 8 and a shell cover 9, and openings 81 are respectively provided on both sides of the shell 8; the shell cover 9 is detachably installed on the opening 81; and the shell cover 9 is respectively provided with mounting grooves 91 that are similar to the power input interface 11, the charging interface 4, the network cable interface 5, and the HDMI interface 6. The shell covers 9 on both sides of the shell 8 can be connected by bolts so that the two shell covers 9 clamp the shell 8 to form a fixation.

[0047] Reference Figure 1 and 4 As shown, the charging interface 4 of this embodiment includes a USB Host interface 43, a USB C PD interface 44 and a USB A QC interface 45; the maximum charging power of the USB Host interface 43 is set to 100W, that of the USB C PD interface 44 is 30W, and that of the USB A QC interface 45 is 18W.

[0048] The charging port 4 also includes a USB C46 port, which does not participate in power distribution and only has USB3.0 data transmission function.

[0049] When charging port 4 is connected to a power-consuming device:

[0050] The USB Host connector is 100W;

[0051] USB C PD interface 44 is 30W;

[0052] USB A QC port 45 is 18W;

[0053] When charging port 4 is connected to two electrical devices:

[0054] USB Host interface 43 + USB C PD interface 44 is 65W + 30W;

[0055] USB Host interface 43 + USB A QC interface 45 is 100W + 5W;

[0056] USB C PD port 44 + USB A QC port 45: 30W + 18W;

[0057] When charging port 4 is connected to two electrical devices:

[0058] USB Host interface 43 + USB C PD interface 44 + USB A QC interface 45 are 65W+30W+5W;

[0059] It should be added that the intelligent identification and optimal current distribution of the charger in this embodiment are existing technologies, and the components therein mainly include: PWM main control chip: as the core control unit of the charger, it is responsible for the management and control of the entire charging process. Protocol chip: used to identify the charging standards of different devices and realize intelligent matching of output current. Gallium nitride power chip: with the characteristics of high efficiency and low on-resistance, it helps to improve charging efficiency and reduce energy consumption. Rectification or switching MOS: used to adjust voltage and current to meet the needs of different devices. Filtering, safety or power supply capacitors: ensure the stability and safety of the power supply. Circuit protection: prevent abnormal conditions such as overcharging and overvoltage from causing damage to the equipment. Inductor: plays the role of energy storage and voltage regulation in the circuit. Optocoupler: used to isolate signals and protect circuits from interference. Transformer: converts AC power into DC power to meet the charging needs of electronic devices.

[0060] Specifically, when the charging interface 4 is connected to two power-consuming devices, the power consumption of the USB Host interface 43 and the USB C PD interface 44 are 65W and 30W respectively, or the power consumption of the USB Host interface 43 and the USB A QC interface 45 are 100W and 5W respectively, or the power consumption of the USB C PD interface 44 and the USB A QC interface 45 are 30W and 18W respectively.

[0061] When the charging interface 4 is connected to three power-consuming devices, the power consumption of the USB Host interface 43, the USB C PD interface 44 and the USB A QC interface 45 are 65W, 30W and 5W respectively.

[0062] Reference Figure 6 As shown, specifically, the shell cover 9 includes an anti-scratch plate 92 arranged in the middle of the shell cover 9, and the mounting grooves 91 of the charging interface 4 are evenly distributed on the anti-scratch plate 92.

[0063] Reference Figure 3 and 6 As shown, specifically, the shell cover 9 also includes a light guide plate 93, the anti-scratch plate 92 is provided with a through groove 921, the middle part of the light guide plate 93 is provided with a protrusion 931 adapted to the through groove 921, the protrusion 931 is inserted into the through groove 921, the light guide plate 93 and the inner wall of the anti-scratch plate 92 are detachably connected, the power-on indicator light 7 is arranged in the U-shaped circuit board, and the position corresponds to the protrusion 931, the power-on indicator light 7 irradiates light to the light guide plate 93, and the light is then output by the protrusion 931 of the light guide plate 93.

[0064] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable charger with multiple interfaces, characterized in that: include: A main circuit board, a charging circuit and a secondary circuit board, wherein the main circuit board is provided with a power input interface, and the charging circuit is electrically connected to the main circuit board; A U-shaped circuit board constructed from three secondary circuit boards, the U-shaped circuit board is electrically connected to the main circuit board, and the bottom of the U is connected to the main circuit board; It also includes several charging interfaces, network cable interfaces and HDMI interfaces. One side of the U-shaped circuit board is provided with a slot that is compatible with the charging interface, and the charging interface is installed in the slot accordingly; the other side of the U-shaped circuit board is provided with several other slots that are compatible with the network cable interface and the HDMI interface, and the network cable interface and the HDMI interface are installed in the slot accordingly.

2. The multi-port integrated portable charger according to claim 1, characterized in that: The charging interface includes a socket body, and bending parts are respectively provided on both sides and ends of the socket body. A slot matching the bending part is provided on the outer edge of the notch of the U-shaped circuit board, and the bending part can be inserted into the slot and fixed by welding.

3. The multi-port integrated portable charger according to claim 1, characterized in that: It also includes a power-on indicator light. The U-shaped circuit board is provided with a power-on indicator light on one side close to the charging interface, and the power-on indicator light is electrically connected to the U-shaped circuit board.

4. The multi-port integrated portable charger according to claim 1, characterized in that: It includes a shell and a shell cover, and openings are respectively arranged on both sides of the shell; the opening is detachably installed with the shell cover; the shell cover is respectively provided with installation grooves that are similar to the power input interface, the charging interface, the network cable interface and the HDMI interface.

5. The multi-port integrated portable charger according to claim 1, characterized in that: The charging interfaces include USB Host interface, USB C PD interface and USB A QC interface; the maximum charging power of the USB Host interface is set to 100W, that of the USB C PD interface is 30W, and that of the USB A QC interface is 18W.

6. The multi-port integrated portable charger according to claim 5, characterized in that: When the charging port is connected to two power-consuming devices, the power consumption of the USB Host port and the USB C PD port are 65W and 30W respectively, or the power consumption of the USB Host port and the USB A QC port are 100W and 5W respectively, or the power consumption of the USB C PD port and the USB A QC port are 30W and 18W respectively.

7. The multi-port integrated portable charger according to claim 5, characterized in that: When the charging port is connected to three power-consuming devices, the power consumption of the USB Host port, USB C PD port and USB A QC port are 65W, 30W and 5W respectively.

8. The multi-port integrated portable charger according to claim 1, characterized in that: It also includes a USB C interface, which is USB3.0, does not participate in power distribution, and is used for data transmission.

9. The multi-port integrated portable charger according to claim 4, characterized in that: The shell cover includes an anti-scratch plate arranged in the middle of the shell cover, and mounting grooves of the charging interface are evenly distributed on the anti-scratch plate.

10. The multi-port integrated portable charger according to claim 9, characterized in that: The shell cover also includes a light guide plate, the anti-scratch plate is provided with a through groove, a protrusion adapted to the through groove is provided in the middle of the light guide plate, the protrusion is inserted into the through groove, the light guide plate and the inner wall of the anti-scratch plate are detachably connected, and the power-on indicator light is arranged in the U-shaped circuit board, and its position corresponds to the protrusion.

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