Enhanced charging device and charging system
By adding energy storage modules and management modules between the unstable power supply and the charged battery, the problems of low charging efficiency and insufficient stability in the existing wireless charging solution are solved, and a more efficient and safe charging process is achieved.
Patent Information
- Application Number
- CN202421688888.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing low-cost wireless charging solutions have problems such as low charging efficiency, insufficient stability and long-term floating charging leading to battery aging.
Design an enhanced charging device, including an energy storage module and a management module, temporarily reserve the power of an unstable power supply through the energy storage module, and control the flow direction and on-off of the power through the management module to avoid long-term floating charge.
It improves the charging efficiency and safety of unstable power supplies, avoids overcharging and aging of the battery, and enhances the stability of the charging system.
Smart Images
Figure CN222915687U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery charging, in particular to an enhanced charging device and a charging system. Background Art
[0002] Currently, due to the requirements of enterprise cost control and reducing the difficulty of design and development, low-cost wireless charging solutions have been widely used in the market. However, these solutions often do not adopt standardized wireless charging protocols, and their charging management functions are relatively simple, thus causing a series of problems.
[0003] First of all, these low-cost wireless charging solutions often have the problem of low charging efficiency. Due to the lack of efficient energy transmission and management technologies, there is a large amount of energy loss during the charging process, resulting in slow charging speed and low efficiency.
[0004] Secondly, the charging stability is insufficient. There may be phenomena such as charging interruption or charging current fluctuation, which affect the stability of the charging process.
[0005] In addition, long-term use of these low-cost wireless charging solutions may cause the battery to be in a floating charge state for a long time. The floating charge state means that after the battery is charged to full, a charging current is continuously applied, which may cause overcharging of the battery, accelerate battery aging, shorten the battery life, and even cause serious consequences such as battery fire. Summary of the Utility Model
[0006] In view of this, the purpose of the utility model is to provide an enhanced charging device, aiming to improve the charging efficiency and safety of unstable power supplies.
[0007] The utility model provides an enhanced charging device for controlling the charging of a battery to be charged by an unstable power supply, including an energy storage module and a management module. The energy storage module is used to connect to the unstable power supply and store the power of the unstable power supply; the management module is used to connect the energy storage module and the battery to be charged to form a first path, connect the unstable power supply and the battery to be charged to form a second path, and the management module is used to control the on-off of the first path.
[0008] In one embodiment, a rectification module is further included. The rectification module is used to connect the unstable power supply and the battery to be charged, and convert the alternating current output by the unstable power supply into direct current.
[0009] In one embodiment, the management module includes a monitoring unit and a control unit. The monitoring unit is used to monitor the charging status of the energy storage module and the unstable power supply and monitor the power of the energy storage module. The control unit is connected to the monitoring unit, used to receive the monitoring feedback of the monitoring unit, and control the first path to conduct or close.
[0010] In one embodiment, the rectification module and the management module are connected in sequence to regulate the flow direction of the electric quantity between the unstable power supply and the battery to be charged and the on / off of the second path.
[0011] In one embodiment, an anti-backflow module is further included. The anti-backflow module is connected to the second path to prevent the electric quantity of the battery to be charged from flowing to the unstable power supply.
[0012] In one embodiment, the monitoring unit includes a battery power detector. The battery power detector is connected to the energy storage module and the control unit to detect the remaining power of the energy storage module and feed back the remaining power to the control unit.
[0013] In one embodiment, the battery power detector is provided with a voltage and current sampler. The voltage and current sampler is used to obtain the current flowing into or out of the energy storage module or the voltage of the line where it is located, and perform operations to obtain the remaining power of the energy storage module.
[0014] In one embodiment, the management module further includes an analysis unit. The analysis unit is connected to the battery power detector and the control unit. The analysis unit is used to receive a preset value of electric quantity, and compare the remaining power of the energy storage module with the preset value of electric quantity. When the remaining power of the energy storage module is greater than the preset value of electric quantity, the control unit controls the first path to continue to be opened; when the remaining power of the energy storage module is equal to or less than the preset value of electric quantity, the control unit controls the first path to be closed.
[0015] In one embodiment, the energy storage module includes a plurality of supercapacitors connected in parallel.
[0016] The present utility model further provides a charging system, including a wireless charging receiving coil, an electrical appliance, and the enhanced charging device as described above. The enhanced charging device is used for charging control of the electrical appliance by the wireless charging receiving coil.
[0017] The enhanced charging device provided by the present utility model adds a first path between the unstable power supply and the battery to be charged, so as to temporarily store the electric energy of the unstable power supply in the energy storage module, and controls the enabling, disconnection or disabling of the energy storage module through the management module. Based on the actual monitoring of the management module, it avoids serious consequences such as overcharging of the battery caused by long-term floating charging, frequent on / off charging, accelerated battery aging, short battery service life, and even battery fire, and improves the energy transmission efficiency and charging system safety during the charging process of the unstable power supply. Description of the Drawings
[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0019] Figure 1 This is a schematic structural diagram of the enhanced charging device in the embodiments of the present utility model.
[0020] Figure 2 For Figure 1 This is a schematic connection diagram of the enhanced charging device in
[0021] Figure 3 This is a schematic connection diagram of the enhanced charging device in other embodiments.
[0022] Reference numerals: A, unstable power supply; 10, energy storage module; 20, management module; 21, monitoring unit; 22, control unit; 23, analysis unit; 30, rectification module; 40, anti-backflow module; E, battery to be charged; 101, first path; 102, second path; 103, third path. Specific embodiments
[0023] The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. Based on the description of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0024] In the description of the present utility model, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.
[0025] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0026] The terms "first", "second", "third", etc. are only used to distinguish components with similar attributes, rather than indicating or implying relative importance or a specific order.
[0027] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the elements listed, it may also include other elements not expressly listed.
[0028] The first embodiment
[0029] Please refer to Figures 1-2 , an embodiment of the present utility model provides a charging enhancement device for controlling the charging of a battery E to be charged by an unstable power source A. It includes an energy storage module 10 and a management module 20. The energy storage module 10 is used to connect to the unstable power source A and store the power of the unstable power source A; the management module 20 is used to connect the energy storage module 10 and the battery E to be charged to form a first path 101, and connect the unstable power source A and the battery E to be charged to form a second path 102. The management module 20 is used to control the on / off of the first path 101.
[0030] Specifically, the charging process of the unstable power source A to the battery E to be charged may be subject to various factors, resulting in voltage fluctuations and frequent tripping phenomena. For this reason, in this embodiment, an energy storage module 10 that can pre-store power is provided between the unstable power source A and the battery E to be charged as a backup power source. When the unstable power source A fails, the management module 20 cuts off the direct charging of the unstable power source A to the battery E to be charged, and at the same time activates the energy storage module 10 to charge the battery E to be charged.
[0031] An unstable power supply A, an energy storage module 10, a management module 20, and a battery E to be charged are connected in sequence to form a first path 101; the unstable power supply A, the management module 20, and the battery E to be charged are connected in sequence to form a second path 102. The first path 101 and the second path 102 are commonly connected to the management module 20, enabling the management module 20 to selectively control the on / off of the first path 101 or the second path 102. When the first path 101 is enabled, the second path 102 is turned off to prevent the second path 102 from malfunctioning and increasing the failure rate of the unstable power supply A or the battery E to be charged. Since the energy storage module 10 has pre-stored the power of the unstable power supply A, the power it outputs is stable. The management module 20 provides a monitoring measure for the charging process between the unstable power supply A and the battery E to be charged, enabling the real-time state of the charging of the unstable power supply A to the battery E to be controlled and allowing for the timely use of a backup energy storage power supply to prevent failures. The management module 20 mainly implements a charging scheme with the charging of the second path 102 as the main and the charging of the first path 101 as the supplement. In the first path 101, the energy storage module 10 only serves as a remedial measure when the second path 102 fails. By using an energy storage device, efficient storage and release of electrical energy are achieved, improving the energy utilization efficiency of the system and reducing losses during the energy conversion process. Retaining the flow of the second path 102 can make energy transfer more direct on the one hand and relieve the storage pressure of the energy storage module 10 on the other hand.
[0032] Please refer to Figure 3 , in other embodiments, the unstable power supply A and the battery E to be charged can be directly connected to form a third path 103 without passing through the management module 20, so that the unstable power supply A and the battery E to be charged remain constantly connected. When the management module 20 detects an abnormality in the battery E to be charged, the connection of the first path 101 is immediately activated.
[0033] In this embodiment, a rectification module 30 is further included. The rectification module 30 is used to connect the unstable power supply A and the battery E to be charged and convert the alternating current output by the unstable power supply A into direct current.
[0034] Specifically, the alternating current output by the unstable power supply A is converted into direct current for transmission into modern electronic devices that require constant voltage and current. This conversion not only meets the requirements of the electronic devices but also ensures the safe and effective operation of the devices. The rectification module 30 can be provided between the unstable power supply A and the energy storage module 10, on the second path 102, or on both the first path 101 and the second path 102.
[0035] In this embodiment, the management module 20 includes a monitoring unit 21 and a control unit 22. The monitoring unit 21 is configured to monitor the charging states of the energy storage module 10 and the unstable power supply A, and monitor the power level of the energy storage module 10. The control unit 22 is connected to the monitoring unit 21 and is configured to receive the monitoring feedback from the monitoring unit 21 and control the conduction or disconnection of the first path 101.
[0036] Specifically, the management module 20 not only needs to monitor the states of the unstable power supply A and the battery E being charged during the charging process, but also needs to keep track of the power supply capacity, lifespan, and transmission stability of the energy storage module 10 in real time. The monitoring unit 21 will only feedback to the control unit 22 to adjust the charging path when it ensures that the energy storage module 10 has sufficient power and stable charging performance. If the power level of the energy storage module 10 is insufficient or there are other instability conditions, the control unit 22 will keep the first path 101 closed to prevent the current from conducting between the energy storage module 10 and the battery E being charged, so as to prevent over-discharge of the energy storage module 10 from causing damage to its electrode active materials, increased internal pressure, electrolyte decomposition, negative electrode metal deposition, increased resistance, and significant attenuation of the battery capacity, etc., and to prevent the energy backflow of the battery E being charged. Through the monitoring function of the monitoring unit 21 and the adjustment function of the control unit 22, real-time monitoring and automatic adjustment of the circuit state are achieved, enabling the system to intelligently switch power sources and manage energy according to the actual situation, improving the stability and reliability of the system.
[0037] In this embodiment, the rectification module 30 and the management module 20 are connected in sequence, and are configured to regulate the flow direction of the power between the unstable power supply A and the battery E being charged and the on / off state of the second path 102.
[0038] Specifically, the rectification module 30 usually can adopt a rectifier diode, the purpose of which is to limit the current direction to a single direction and convert alternating current into direct current. The rectification module 30 is connected to the management module 20, and the current on the circuit connected to the management module 20 is stable, ensuring the normal operation of the management module 20. When the unstable power supply A stops supplying power, the system can smoothly switch to the reserve energy to ensure continuous power supply to the target device and avoid work interruption or damage caused by power fluctuations.
[0039] In this embodiment, an anti-backflow module 40 is further included. The anti-backflow module 40 is connected to the second path 102 and is configured to prevent the power of the battery E being charged from flowing to the unstable power supply A.
[0040] Specifically, since the unstable power supply A can be connected to the battery E to be charged through the energy storage module 10 or directly to the battery E to be charged, when the unstable power supply A is directly connected to the battery E to be charged, the anti-backflow module 40 is connected to the second path 102. The anti-backflow module 40 can be an anti-backflow diode as a power protection component, so that the reverse current cannot flow into the load or the power supply, which can ensure that the current of the battery E to be charged does not flow back into the unstable power supply A to prevent battery short circuit or explosion.
[0041] Furthermore, the rectification module 30 and the anti-backflow module 40 can be integrally provided, that is, a device with both functions can be used to implement them.
[0042] In this embodiment, the monitoring unit 21 includes a battery power detector, and the battery power detector is connected to the energy storage module 10 and the control unit 22, and is used to detect the remaining power of the energy storage module 10 and feedback the remaining power to the control unit 22. Furthermore, the battery power detector is provided with a voltage and current sampler, and the voltage and current sampler is used to obtain the current flowing into or out of the energy storage module 10 or the voltage of the line where it is located, and calculate the remaining power of the energy storage module 10 through the current or voltage data.
[0043] Specifically, the battery power detector in this embodiment preferably obtains the net charge number of the battery by continuously monitoring the current flowing into or out of the energy storage module 10 and performing integral calculation, so as to estimate the remaining power. The battery power detector based on this monitoring method can provide a relatively accurate power estimate. It can detect the abnormal situation of the energy storage module 10 in a timely and accurate manner, and take corresponding measures through the control unit 22 to disconnect or disable the energy storage module 10 by closing the first path 101, so as to protect the battery E to be charged from damage and ensure the safe operation of the unstable power supply A charging system.
[0044] In this embodiment, the management module 20 further includes an analysis unit 23. The analysis unit 23 is connected to the battery power detector and the control unit 22. The analysis unit 23 is used to receive the power preset value, and compare the remaining power of the energy storage module 10 with the power preset value. When the remaining power of the energy storage module 10 is greater than the power preset value, the control unit 22 controls the first path 101 to continue to be opened; when the remaining power of the energy storage module 10 is equal to or less than the power preset value, the control unit 22 controls the first path 101 to close.
[0045] Specifically, by setting different upper and lower limits of the power enable threshold and the response time for the analysis unit 23, the preset value can be flexibly adjusted according to actual needs to adapt to different working environments and power conditions, improving the applicability and flexibility of the system.
[0046] In this embodiment, the energy storage module 10 includes a plurality of supercapacitors connected in parallel to increase the energy storage capacity of the energy storage module 10, and the supercapacitors can accelerate the charging and discharging speed.
[0047] The enhanced charging device provided by the present invention adds a first path 101 between the unstable power supply A and the battery to be charged E, so as to temporarily store the electric energy of the unstable power supply A in the energy storage module 10, and controls the enabling, disconnection or disabling of the energy storage module 10 through the management module 20. Based on the actual monitoring of the management module 20, it can avoid serious consequences such as overcharging of the battery caused by long-term floating charge, frequent on-off charging, accelerated battery aging, short battery service life, and even battery fire, and improve the energy transmission efficiency during the charging process of the unstable power supply A and the safety of the charging system.
[0048] Second Embodiment
[0049] The present invention also provides a charging system, which includes a wireless charging receiving coil, an electrical appliance and the enhanced charging device as described in the first embodiment. The enhanced charging device is used for controlling the charging of the electrical appliance by the wireless charging receiving coil.
[0050] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims
1. An enhanced charging device for controlling the charging of a battery (E) by an unstable power source (A), characterized in that: include: An energy storage module (10), the energy storage module (10) being used to connect to an unstable power source (A) and store the electricity of the unstable power source (A); A management module (20), the management module (20) being used to connect the energy storage module (10) and the charged battery (E) to form a first path (101), and to connect the unstable power source (A) and the charged battery (E) to form a second path (102), and the management module (20) being used to control the on and off of the first path (101).
2. The enhanced charging device according to claim 1, characterized in that: It also includes a rectifier module (30), which is used to connect the unstable power source (A) and the charged battery (E) and convert the alternating current output by the unstable power source (A) into a direct current.
3. The enhanced charging device according to claim 2, characterized in that: The management module (20) comprises a monitoring unit (21) and a control unit (22); the monitoring unit (21) is used to monitor the charging status of the energy storage module (10) and the unstable power source (A) and to monitor the power level of the energy storage module (10); the control unit (22) is connected to the monitoring unit (21) and is used to receive monitoring feedback from the monitoring unit (21) and control the first path (101) to be turned on or off.
4. The enhanced charging device according to claim 3, characterized in that: The rectifying module (30) and the management module (20) are connected in sequence and are used to regulate the flow of electricity between the unstable power source (A) and the charged battery (E) and the on-off of the second path (102).
5. The enhanced charging device according to claim 4, characterized in that: It also includes an anti-backflow module (40), which is connected to the second passage (102) and is used to prevent the electricity of the charged battery (E) from flowing to the unstable power source (A).
6. The enhanced charging device according to claim 3, characterized in that: The monitoring unit (21) comprises a battery capacity detector, which is connected to the energy storage module (10) and the control unit (22) and is used to detect the remaining capacity of the energy storage module (10) and feed back the remaining capacity to the control unit (22).
7. The enhanced charging device according to claim 6, characterized in that: The battery power detector is provided with a voltage and current sampler, which is used to obtain the current flowing into or out of the energy storage module (10) or the voltage of the circuit, and to perform calculations to obtain the remaining power of the energy storage module (10).
8. The enhanced charging device according to claim 6, characterized in that: The management module (20) further comprises an analysis unit (23), the analysis unit (23) being connected to the battery power detector and the control unit (22), the analysis unit (23) being used to receive a preset power value, and to compare the remaining power of the energy storage module (10) with the preset power value; when the remaining power of the energy storage module (10) is greater than the preset power value, the control unit (22) controls the first passage (101) to continue to be opened; when the remaining power of the energy storage module (10) is equal to or less than the preset power value, the control unit (22) controls the first passage (101) to be closed.
9. The enhanced charging device according to claim 1, characterized in that: The energy storage module (10) comprises a plurality of supercapacitors arranged in parallel.
10. A charging system, characterized in that: It comprises a wireless charging receiving coil, an electrical appliance and an enhanced charging device as described in any one of claims 1 to 9, wherein the enhanced charging device is used for controlling the charging of the electrical appliance by the wireless charging receiving coil.