A charger integrating a mobile power supply and a charger
By integrating a power bank and charger into one unit through a multi-layer circuit board design and vertical layout, the problems of large size and low space utilization have been solved, achieving a smaller and more efficient charger design that meets user needs and reduces production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHNE DNS IND CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-16
AI Technical Summary
Existing chargers that combine power bank and charger are bulky, have low space utilization, and are inconvenient to carry.
The system employs a multi-layer circuit board design, rationally distributing circuit components across different circuit boards, including a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board. It incorporates a battery protection module, a voltage conversion module, a display module, an interface module, a main control module, and more. The vertical layout of the multi-layer circuit boards reduces space occupancy, and the use of Type-C cables improves charging efficiency.
This resulted in a smaller charger size, improved space utilization, easier portability for users, and reduced production costs.
Smart Images
Figure CN224367558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile charging technology, and in particular to a charger that integrates a power source and a charger. Background Technology
[0002] As the types and functions of mobile electronic devices continue to improve, their usage is increasing, leading to a growing demand for charging. Currently, mobile electronic devices are mainly charged in two ways: through chargers and through power banks.
[0003] To conveniently charge mobile electronic devices, users often need to purchase both a charger and a power bank, carrying them together as needed. To avoid the inconvenience of carrying separate chargers and power banks, integrated chargers combining the two have emerged in the technology. However, due to unreasonable circuit board layout, these integrated chargers are bulky, have low space utilization, and are inconvenient to carry. Utility Model Content
[0004] Therefore, it is necessary to address the issues of large size, low space utilization, and inconvenience in carrying chargers that integrate power banks and chargers in related technologies, and to provide a charger that integrates power banks and chargers in one unit.
[0005] A charger that integrates a power bank and a charger includes a housing, inside which a circuit board and a battery are disposed, and the circuit board includes a first circuit board, a second circuit board, a third circuit board and a fourth circuit board;
[0006] The first circuit board is equipped with a battery protection module, which is connected to the battery. The first circuit board is located on the side of the battery, and the plane of the first circuit board is parallel to the axis of the battery. The second circuit board is equipped with a voltage conversion module, a first interface module, a display module, a first main control module, and a switch module. The third circuit board is equipped with a high voltage rectification module, a low voltage rectification module, a low voltage filtering module, a button module, and a first isolation transformer winding. The fourth circuit board is equipped with a high voltage filtering module, a second main control module, a power supply module, a feedback module, an absorption module, a second isolation transformer winding, a third isolation transformer winding, and a second interface module.
[0007] The voltage conversion module is connected to the battery protection module, the switch module, the first interface module, the second interface module, and the first main control module. The first main control module is connected to the display module, the first interface module, the second interface module, the feedback module, and the switch module. The high-voltage rectifier module is connected to the high-voltage filter module. The high-voltage filter module is connected to the absorption module and the second isolation transformer winding. The second main control module is connected to the absorption module, the second isolation transformer winding, the power supply module, and the feedback module. The power supply module is connected to the third isolation transformer winding. The first isolation transformer winding is connected to the low-voltage rectifier module, the low-voltage filter module, and the feedback module.
[0008] The aforementioned charger, which integrates a power bank and a charger, has two usage modes: it can be used as a power bank and it can be used as a charger.
[0009] When used as a power bank, the switch module is turned off, and the battery provides voltage to the voltage conversion module via the battery protection module. The battery protection module can protect the battery from overcharging or over-discharging, and the voltage conversion module can adjust the voltage. The first main control module can obtain the device information of the power-consuming device through the first interface module and the second interface module, and control the voltage conversion module to adjust the voltage according to the device information. The display module can display the battery level according to the control signal of the first main control module.
[0010] When used as a charger, the high-voltage rectifier module rectifies the high-voltage AC power, and the high-voltage filter module filters it, thereby generating a high-voltage signal on the winding side of the second isolation transformer. By setting the windings of the first, second, and third isolation transformers and the iron core, induced voltages can be generated on the winding sides of the first and third isolation transformers respectively. The absorption module can absorb the spikes of the high-voltage signal generated on the winding side of the second isolation transformer. The power supply module can obtain the induced voltage from the winding side of the third isolation transformer and supply power to the second main control module. The low-voltage rectifier module and the low-voltage filter module can rectify and filter the induced voltage on the winding side of the first isolation transformer respectively. The feedback module can collect the induced voltage on the winding side of the first isolation transformer and provide a feedback signal to the second main control module. The second main control module can adjust the operating mode of the transformer according to the feedback signal provided by the feedback module. When used as a charger, the switching module is turned on, allowing the induced voltage on the winding side of the first isolation transformer to supply power to the voltage conversion module. The voltage conversion module then transforms the voltage to charge the battery, power the device corresponding to the first interface module, and power the device corresponding to the second interface module. The first main control module is connected to a feedback module, allowing it to control the second main control module and further adjust the output voltage of the isolation transformer. The first main control module is also connected to the switching module, enabling it to flexibly control the switching on and off, thus accommodating different usage states of this integrated power bank and charger.
[0011] As can be seen, this charger, which integrates a power bank and a charger, can be used as both a charger and a power bank, meeting the user's needs. Furthermore, a battery protection module is located on the first circuit board; a voltage conversion module, a first interface module, a display module, a first main control module, and a switch module are located on the second circuit board; a high-voltage rectification module, a low-voltage rectification module, a low-voltage filtering module, a button module, a second interface module, and a first isolation transformer winding are located on the third circuit board; and a high-voltage filtering module, a second main control module, a power supply module, a feedback module, an absorption module, a second isolation transformer winding, and a third isolation transformer winding are located on the fourth circuit board. This allows for the rational distribution of circuit components across different circuit boards, avoiding excessive space occupation caused by concentrating components on a single board, facilitating user storage, and reducing production costs.
[0012] In one embodiment, the second circuit board is disposed at one end of the battery, and the plane on which the second circuit board is located is perpendicular to the axial direction of the battery.
[0013] In one embodiment, the plane of the third circuit board is perpendicular to the plane of the second circuit board, the plane of the fourth circuit board is perpendicular to the plane of the second circuit board, and the plane of the third circuit board is perpendicular to the plane of the fourth circuit board.
[0014] In one embodiment, the enclosing space of the second circuit board, the third circuit board and the fourth circuit board is provided with an iron core that cooperates with the first isolation transformer winding, the second isolation transformer winding and the third isolation transformer winding.
[0015] In one embodiment, both the first interface module and the second interface module are connected to a Type-C cable.
[0016] In one embodiment, the display module is located on the outside of the second circuit board.
[0017] In one embodiment, the battery protection module includes a battery protection chip.
[0018] In one embodiment, the button module is located on the outside of the third circuit board.
[0019] In one embodiment, the switching module includes a P-type MOS transistor.
[0020] In one embodiment, the high-voltage rectifier module is connected to a charger plug. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the circuit principle of the charger that integrates a power bank and a charger according to this utility model;
[0022] Figure 2 This is a schematic diagram of the overall structure of the charger that integrates a power bank and a charger according to this utility model;
[0023] Figure 3 This is a partial structural diagram of the charger that integrates a power bank and a charger according to this utility model;
[0024] Among them, 10 is the shell, 20 is the battery, 30 is the circuit board, 40 is the iron core, 50 is the charger plug, 31 is the first circuit board, 32 is the second circuit board, 33 is the third circuit board, 34 is the fourth circuit board, 311 is the battery protection module, 321 is the voltage conversion module, 322 is the first interface module, 323 is the display module, 324 is the first main control module, 325 is the switch module, 331 is the high voltage rectification module, 332 is the low voltage rectification module, 333 is the low voltage filtering module, 334 is the button module, 335 is the second interface module, 336 is the first isolation transformer winding, 341 is the high voltage filtering module, 342 is the second main control module, 343 is the power supply module, 344 is the feedback module, 345 is the absorption module, 346 is the second isolation transformer winding, and 347 is the third isolation transformer winding. Detailed Implementation
[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0026] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] This utility model discloses a charger that integrates a power bank and a charger.
[0029] like Figures 1 to 3As shown, the charger, which integrates a power bank and a charger, includes a housing 10. Inside the housing 10, there is a circuit board 30 and a battery 20. The circuit board 30 includes a first circuit board 31, a second circuit board 32, a third circuit board 33, and a fourth circuit board 34. The first circuit board 31 has a battery protection module 311 connected to the battery 20. The first circuit board 31 is located on the side of the battery 20, and the plane of the first circuit board 31 is parallel to the axis of the battery 20. The second circuit board 32 has a voltage conversion module 321, a first interface module 322, a display module 323, a first main control module 324, and a switch module 325. The third circuit board 33 has a high-voltage rectification module 331, a low-voltage rectification module 332, a low-voltage filter module 333, a button module 334, and a first isolation transformer winding 336. The fourth circuit board 34 has a high-voltage filter module 341, a second main control module 342, a power supply module 343, a feedback module 344, and an absorption module. 345, second isolation transformer winding 346, third isolation transformer winding 347, and second interface module 335; voltage conversion module 321 is connected to battery protection module 311, switch module 325, first interface module 322, second interface module 335, and first main control module 324 respectively; first main control module 324 is connected to display module 323, first interface module 322, second interface module 335, feedback module 344, and switch module 325 respectively; high voltage rectifier module 331 is connected to high voltage filter module 341; high voltage filter module 341 is connected to absorption module 345 and second isolation transformer winding 346 respectively; second main control module 342 is connected to absorption module 345, second isolation transformer winding 346, power supply module 343, and feedback module 344 respectively; power supply module 343 is connected to third isolation transformer winding 347; first isolation transformer winding 336 is connected to low voltage rectifier module 332, low voltage filter module 333, and feedback module 344 respectively. The button module 334 can trigger the first main control module 324 to enter or exit the working state.
[0030] The aforementioned charger, which integrates a power bank and a charger, has two usage modes: it can be used as a power bank and it can be used as a charger.
[0031] When used as a power bank, the switch module is turned off, and the battery provides voltage to the voltage conversion module via the battery protection module. The battery protection module can protect the battery from overcharging or over-discharging, and the voltage conversion module can adjust the voltage. The first main control module can obtain the device information of the power-consuming device through the first interface module and the second interface module, and control the voltage conversion module to adjust the voltage according to the device information. The display module can display the battery level according to the control signal of the first main control module.
[0032] When used as a charger, the high-voltage rectifier module rectifies the high-voltage AC power, and the high-voltage filter module filters it, thereby generating a high-voltage signal on the winding side of the second isolation transformer. By setting the windings of the first, second, and third isolation transformers and the iron core, induced voltages can be generated on the winding sides of the first and third isolation transformers respectively. The absorption module can absorb the spikes of the high-voltage signal generated on the winding side of the second isolation transformer. The power supply module can obtain the induced voltage from the winding side of the third isolation transformer and supply power to the second main control module. The low-voltage rectifier module and the low-voltage filter module can rectify and filter the induced voltage on the winding side of the first isolation transformer respectively. The feedback module can collect the induced voltage on the winding side of the first isolation transformer and provide a feedback signal to the second main control module. The second main control module can adjust the operating mode of the transformer according to the feedback signal provided by the feedback module. When used as a charger, the switching module is turned on, allowing the induced voltage on the winding side of the first isolation transformer to supply power to the voltage conversion module. After voltage conversion, the voltage is used to charge the battery, supply power to the device corresponding to the first interface module, and supply power to the device corresponding to the second interface module.
[0033] As can be seen, this charger, which integrates a power bank and a charger, can be used as both a charger and a power bank, meeting the user's needs. Furthermore, a battery protection module is located on the first circuit board; a voltage conversion module, a first interface module, a display module, a first main control module, and a switch module are located on the second circuit board; a high-voltage rectification module, a low-voltage rectification module, a low-voltage filtering module, a button module, a second interface module, and a first isolation transformer winding are located on the third circuit board; and a high-voltage filtering module, a second main control module, a power supply module, a feedback module, an absorption module, a second isolation transformer winding, and a third isolation transformer winding are located on the fourth circuit board. This allows for the rational distribution of circuit components across different circuit boards, avoiding excessive space occupation caused by concentrating components on a single board, facilitating user storage, and reducing production costs.
[0034] The second circuit board 32 is located at one end of the battery 20, and the plane of the second circuit board 32 is perpendicular to the axial direction of the battery 20. By placing the second circuit board 32 at one end of the battery 20 and ensuring that the plane of the second circuit board 32 is perpendicular to the axial direction of the battery 20, the space occupied can be greatly reduced.
[0035] Furthermore, the plane containing the third circuit board 33 is perpendicular to the plane containing the second circuit board 32, the plane containing the fourth circuit board 34 is perpendicular to the plane containing the second circuit board 32, and the plane containing the third circuit board 33 is perpendicular to the plane containing the fourth circuit board 34. By setting the plane containing the third circuit board 33 to be perpendicular to the plane containing the second circuit board 32, the plane containing the fourth circuit board 34 to be perpendicular to the plane containing the second circuit board 32, and the plane containing the third circuit board 33 to be perpendicular to the plane containing the fourth circuit board 34, the second circuit board 32, the third circuit board 33, and the fourth circuit board 34 can enclose a space that can accommodate circuit devices, thereby further reducing the space occupied.
[0036] The space enclosed by the second circuit board 32, the third circuit board 33, and the fourth circuit board 34 is provided with an iron core 40 that mates with the first isolation transformer winding 336, the second isolation transformer winding 346, and the third isolation transformer winding 347. Since the iron core 40 is relatively large, placing it within the enclosed space of the second circuit board 32, the third circuit board 33, and the fourth circuit board 34 can reduce the space occupied by the excessive size of the iron core 40.
[0037] Both the first interface module 322 and the second interface module 335 are connected to Type-C cables. This connection ensures high charging efficiency for both the power bank and charger when used as a charger and a power bank. Furthermore, when used as a power bank, the charger can also be connected to an external power source via either the first interface module 322 or the second interface module 335, and the voltage will be converted by the voltage conversion module 321 to charge the battery 20.
[0038] Furthermore, the display module 323 is located on the outside of the second circuit board 32, and the housing 10 is provided with a through hole to cooperate with the display module 323 so that the user can observe the power of the battery 20.
[0039] Furthermore, the battery protection module 311 includes a battery protection chip. By setting the battery protection chip, intelligent protection can be provided for the battery 20. The button module 334 is located on the outside of the third circuit board 33, for more convenient triggering of the first main control module 324 to enter or exit the working state.
[0040] Furthermore, the switching module 325 includes a P-type MOSFET. P-type MOSFETs are characterized by high input impedance, low noise, fast switching speed, low power consumption, high reliability, and stability.
[0041] The high-voltage rectifier module 331 is connected to a charger plug 50. Through the charger plug 50, AC high-voltage power can be supplied to the high-voltage rectifier module.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A charger that integrates a power bank and a charger, characterized in that, The device includes a housing, inside which a circuit board and a battery are provided. The circuit board includes a first circuit board, a second circuit board, a third circuit board, and a fourth circuit board. The first circuit board is equipped with a battery protection module, which is connected to the battery. The first circuit board is located on the side of the battery, and the plane of the first circuit board is parallel to the axis of the battery. The second circuit board is equipped with a voltage conversion module, a first interface module, a display module, a first main control module, and a switch module. The third circuit board is equipped with a high voltage rectification module, a low voltage rectification module, a low voltage filtering module, a button module, and a first isolation transformer winding. The fourth circuit board is equipped with a high voltage filtering module, a second main control module, a power supply module, a feedback module, an absorption module, a second isolation transformer winding, a third isolation transformer winding, and a second interface module. The voltage conversion module is connected to the battery protection module, the switch module, the first interface module, the second interface module, and the first main control module. The first main control module is connected to the display module, the first interface module, the second interface module, the feedback module, and the switch module. The high-voltage rectifier module is connected to the high-voltage filter module. The high-voltage filter module is connected to the absorption module and the second isolation transformer winding. The second main control module is connected to the absorption module, the second isolation transformer winding, the power supply module, and the feedback module. The power supply module is connected to the third isolation transformer winding. The first isolation transformer winding is connected to the low-voltage rectifier module, the low-voltage filter module, and the feedback module.
2. The charger integrating a power bank and a charger as described in claim 1, characterized in that, The second circuit board is disposed at one end of the battery, and the plane on which the second circuit board is located is perpendicular to the axial direction of the battery.
3. The charger integrating a power bank and a charger as described in claim 2, characterized in that, The plane where the third circuit board is located is perpendicular to the plane where the second circuit board is located, the plane where the fourth circuit board is located is perpendicular to the plane where the second circuit board is located, and the plane where the third circuit board is located is perpendicular to the plane where the fourth circuit board is located.
4. The charger integrating a power bank and a charger as described in claim 3, characterized in that, The enclosed space of the second circuit board, the third circuit board and the fourth circuit board is provided with an iron core that cooperates with the first isolation transformer winding, the second isolation transformer winding and the third isolation transformer winding.
5. The charger integrating a power bank and a charger as described in claim 4, characterized in that, Both the first interface module and the second interface module are connected to a Type-C cable.
6. The charger integrating a power bank and a charger as described in claim 5, characterized in that, The display module is located on the outside of the second circuit board.
7. The charger integrating a power bank and a charger as described in claim 6, characterized in that, The battery protection module includes a battery protection chip.
8. The charger integrating a power bank and a charger as described in claim 7, characterized in that, The button module is located on the outside of the third circuit board.
9. The charger integrating a power bank and a charger as described in claim 8, characterized in that, The switching module includes a P-type MOS transistor.
10. The charger integrating a power bank and a charger as described in claim 9, characterized in that, The high-voltage rectifier module is connected to a charger plug.