An automatically sorted battery charging device

Abstract

The battery charging device disclosed in this invention includes an integrated base, a battery compartment, inner and outer double-ring annular tracks, a zigzag shaking plate, a sorting wheel, multiple independent charging mechanisms, a motor drive unit, and a battery storage unit. One end of the zigzag shaking plate passively swings. Multiple sets of outwardly opening figure-eight grooves, formed by inner small-diameter grooves and outer large-diameter grooves, are evenly distributed around the outer circumference of the sorting wheel. At least one set of figure-eight grooves serves as a charging station, with multiple independent charging mechanisms at both ends to charge the batteries. Thus, the sorting wheel of this invention, with its figure-eight groove structure, completes the purely mechanical weight-based sorting of AA / AAA mixed batteries the instant the batteries are positioned. The zigzag shaking plate and the figure-eight grooves of the sorting wheel form a passive interference swing without a power source. The inner and outer double-ring annular track and integrated base design prevent battery jamming. The eight-station cycle and four-way synchronous charging mechanism improve the automation level of battery sorting, charging, and storage.

Description

Technical Field

[0001] This invention relates to the field of battery charging technology, and in particular to a battery charging device for intelligent automatic sorting of AA / AAA batteries. Background Technology

[0002] In recent years, with the increasing use of battery-powered devices such as remote controls, door locks, and toys, as well as the widespread adoption of IoT technology, batteries have become a core component requiring careful management and extended lifespan. Among these, AA (size 5) and AAA (size 7) cylindrical batteries are particularly prevalent.

[0003] Against this backdrop, smart battery charging devices are gradually gaining favor with users due to their fast charging capabilities, safety management, and health monitoring capabilities.

[0004] However, existing battery charging devices generally have the following drawbacks:

[0005] 1. Manual sorting required, insufficient automation: Most equipment requires manual separation of AA / AAA batteries, and cannot achieve automatic feeding and sorting of mixed batteries, making the operation cumbersome.

[0006] 2. Batteries are prone to clogging and have low feeding efficiency: The single capacity is limited, and when batteries are added in batches, they are prone to stacking and clogging in the hopper. Traditional anti-clogging mechanisms are weak and can only accommodate a small number of batteries, which cannot be adapted to large-capacity feeding scenarios.

[0007] 3. Misjudgment of being out of the market: There is basically no logic for confirming being out of the market through three rounds of up and down swings. It only judges whether someone is out of the market based on a single signal, which can easily lead to misjudgment and system shutdown.

[0008] 4. Poor charging compatibility: Most devices only support a single type of battery or brand-specific batteries, and cannot be universally compatible with common batteries such as 1.2V NiMH, 1.5V step-down lithium batteries, and 3.7V lithium batteries.

[0009] For example, the first-generation Olight product only supports batteries of a single size, requiring manual placement of each battery into its corresponding compartment. It is not compatible with batteries of multiple sizes. If both AA and AAA batteries need to be charged simultaneously, two separate devices must be purchased, resulting in high operating costs and poor ease of operation. The upgraded second-generation Olight product is compatible with both AA and AAA batteries, but it lacks any automatic sorting function. Users must manually distinguish the battery sizes in advance and place each battery into its corresponding compartment. AA batteries can only be placed in the AA compartment, and AAA batteries can only be placed in the AAA compartment, making mixed loading impossible and resulting in extremely low automation. Although the Korean patent KR101734197B1 proposes an automatic battery charging device with an integrated support structure, shaft, and basic signal detection position, the shaking plate uses a 7-shaped single-sloped structure with a gear active meshing transmission method. It lacks the ability to break up large-capacity batteries and can only meet the needs of small-capacity loading. Its rotating wheel has a 4-slot single-ring structure, which only adapts to batteries of a single size and still does not have the function of sorting mixed AA / AAA batteries.

[0010] Therefore, there is an urgent need for a more practical and automated battery charging device to solve the problems of existing equipment, such as the need for manual sorting, easy battery blockage, easy misjudgment of empty compartments, and poor charging compatibility. Summary of the Invention

[0011] The purpose of this invention is to provide an automatic battery charging device that combines features such as mixed loading, automatic battery breaking, self-weight sensorless sorting, integrated base, full-process signal detection, prevention of false empty compartments, and universal charging for multi-voltage batteries. This effectively solves the problems of existing products, such as the need for manual sorting, easy battery blockage, easy false empty compartments, and poor charging compatibility, thus greatly improving the overall practicality and automation of the battery charging device.

[0012] To achieve the objectives of this invention, the following technical solution is adopted:

[0013] An automatic battery charging device for sorting includes a housing, an integrated base, a zigzag vibrating plate, a sorting wheel, a multi-channel independent charging mechanism, a motor drive unit, and a battery storage unit disposed inside the housing; wherein:

[0014] The integrated base is composed of a left and right base body symmetrically spliced ​​together. The integrated base has an integrated battery compartment, inner and outer double-ring track, a shaking plate shaft mounting position, a wheel shaft position for mounting the sorting wheel, and a motor fixing column for mounting the motor drive unit.

[0015] The battery compartment to be charged is located at the top of the battery charging device and is used to accommodate multiple AA / AAA hybrid batteries that need to be charged;

[0016] The zigzag shaking plate is rotatably mounted on the shaking plate shaft mounting position at one end via a shaking plate shaft, and the other end is movably abutted against the sorting wheel, and passively swings as the sorting wheel rotates to break the battery blockage.

[0017] The sorting wheel has multiple sets of outwardly opening figure-eight grooves evenly distributed on its outer circumference. Each set of figure-eight grooves consists of an inner small-diameter groove and an outer large-diameter groove connected together. The inner small-diameter groove is sized to allow only AAA batteries to pass through, while the outer large-diameter groove is sized to accommodate AA batteries. At least one set of figure-eight grooves serves as a charging station.

[0018] The multi-channel independent charging mechanism is located at the charging station and is used to independently charge the batteries entering the charging station.

[0019] The motor drive unit is connected to the sorting wheel for driving the sorting wheel to rotate;

[0020] The inner and outer double-ring circular tracks include an outer ring circular track that is concentrically encircled around the outside of the sorting wheel and an inner ring circular track that is concentrically arranged with the outer ring circular track; the inner and outer double-ring circular tracks are concentrically matched with the sorting wheel and are used to realize the weight-based sorting of AAA batteries falling into the inner ring track and AA batteries being limited and stopped in the outer ring track when the sorting wheel rotates, as well as the charging and transfer of batteries.

[0021] The battery storage section is located at the lower part of the battery charging device and is used to store the fully charged batteries discharged from the charging station of the sorting wheel.

[0022] As a further explanation of the present invention, preferably, the zigzag shaking plate is an integrally formed two-stage guide surface structure, including a shaking plate shaft, an upper main body section, a downward bending section, and an extension section connected in sequence; the shaking plate shaft serves as a rotation fulcrum, the thickness of the upper main body section near the shaking plate shaft is greater than that away from the shaking plate shaft, the inclination angle of the upper main body section is smaller than that of the downward bending section, and the extension section movably abuts against the sorting wheel.

[0023] As a further explanation of the present invention, preferably, the integrated base is also provided with an inlet groove and a single limiting rib for the inlet groove. The inlet groove is located at the lower end of the zigzag shaking plate, and the single limiting rib for the inlet groove is used to limit the passage of only one battery at a time.

[0024] As a further explanation of the present invention, preferably, the opening size of the inner small-diameter groove is 11mm, the opening size of the outer large-diameter groove is 15mm, and the connecting opening size between the inner small-diameter groove and the outer large-diameter groove is 11mm.

[0025] As a further explanation of the present invention, preferably, the sorting wheel is provided with an inlet slot station, a sorting station, four charging stations, an outlet station, and a wheel start / stop station in sequence along the circumference; the sorting wheel is configured such that: when all charging stations are occupied by batteries that have been sorted by the sorting stations, the sorting wheel stops rotating to charge, and after charging is completed, it rotates again to deliver the batteries and load the next group of batteries.

[0026] As a further explanation of the present invention, preferably, the integrated base also includes a valve shaft located at the lower end of the sorting wheel, and the battery storage section includes a fully charged compartment and a faulty battery compartment; the valve shaft is used to install a valve, and the valve is used to separate the charged batteries into compartments, wherein fully charged batteries are guided to the fully charged compartment, and faulty batteries are guided to the faulty battery compartment.

[0027] As a further explanation of the present invention, preferably, the integrated base has a plurality of photosensitive signal holes, and each photoelectric sensor is installed in a photosensitive signal hole; the photosensitive signal holes include at least:

[0028] The first detection hole is used to detect whether there is a battery in the inlet slot; the second and third detection holes are used to identify the battery model sorted at the sorting wheel; the fourth detection hole is used to trigger the sorting wheel to reverse; the fifth detection hole is used to control the start and stop of the sorting wheel; the sixth and seventh detection holes are used to detect the valve switching position; and the eighth and ninth detection holes are used to detect the full charge compartment and the full charge compartment of the faulty battery compartment.

[0029] As a further explanation of the present invention, preferably, it also includes an MCU control module and a display module, wherein the MCU control module is electrically connected to the photoelectric sensor, the display module, the motor drive unit, and the multi-channel independent charging mechanism; the MCU control module is configured as follows:

[0030] Based on the photoelectric sensor signal at the first detection hole, when an empty bin is detected, the motor drive unit is controlled to drive the sorting wheel to perform six shaking actions in sequence: forward rotation, reverse rotation, forward rotation, reverse rotation, forward rotation, and reverse rotation. If an empty bin signal is still received after six shaking actions, it is determined to be an empty bin and the display module is controlled to display an empty bin prompt.

[0031] Based on the photoelectric sensor signals from the second and third detection holes, the battery model that has passed through the sorting station is identified and recorded.

[0032] The starting, stopping, and reversing of the sorting wheel are controlled based on the photoelectric sensor signals from the fourth and fifth detection holes.

[0033] Based on the photoelectric sensor signals from the sixth and seventh detection holes, confirm whether the valve switches to the full charge compartment channel or the faulty charge compartment channel.

[0034] Based on the photoelectric sensor signals from the eighth and ninth detection holes, it is determined whether the full or faulty battery compartment is full, and when it is full, the display module is controlled to display a full battery prompt.

[0035] As a further explanation of the present invention, preferably, the display module is disposed on the housing.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. Purely mechanical instantaneous sorting: By using a sorting wheel with a figure-eight groove, the pure mechanical weight sorting of AA / AAA mixed batteries can be completed the instant the batteries are placed, without the need for any sensors or electronic control judgment, which significantly reduces costs and improves the reliability and stability of sorting.

[0038] 2. High-efficiency automatic arch breaking: The zigzag shaking plate and the sorting wheel are passively interfered with by a power source. Driven entirely by the rotation of the wheel itself, it can achieve high-efficiency automatic arch breaking of large-capacity (e.g., more than 40 cells) batteries without additional power or control, effectively preventing battery blockage and ensuring smooth feeding.

[0039] 3. Stable structure and smooth operation: The inner and outer double-ring circular track and integrated base design ensure the smooth operation of the equipment and effectively avoid battery jamming; the single limit rib of the inlet slot prevents misjudgment of two batteries in the same slot.

[0040] 4. Fully automated charging process: Through the combination of multi-station (e.g., eight-station) cycle and multi-path independent charging mechanism, the entire process of battery unmanned automatic operation is realized, from mixed placement, automatic arch breaking, instant sorting, intelligent charging to good and bad battery compartment storage, which greatly improves user convenience.

[0041] 5. Prevention of false empty chamber judgment: The MCU control module uses a three-stage forward and reverse jitter logic to prevent false empty chamber judgment and shutdown.

[0042] 6. Strong charging compatibility: Compatible with a variety of general-purpose batteries such as 1.2V NiMH, 1.5V step-down lithium batteries, and 3.7V lithium batteries. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is one of the structural schematic diagrams of the battery charging device provided in the embodiments of the present invention;

[0045] Figure 2 This is a second schematic diagram of the structure of the battery charging device provided in the embodiment of the present invention;

[0046] Figure 3 This is one of the schematic diagrams of the internal structure of the battery charging device housing provided in the embodiments of the present invention;

[0047] Figure 4 This is a second schematic diagram of the internal structure of the battery charging device housing provided in an embodiment of the present invention;

[0048] Figure 5 This is the third schematic diagram of the battery charging device provided in the embodiment of the present invention;

[0049] Figure 6 This is one of the schematic diagrams of the left body structure of the base of the battery charging device provided in the embodiments of the present invention;

[0050] Figure 7 This is one of the schematic diagrams of the right body structure of the base of the battery charging device provided in the embodiments of the present invention;

[0051] Figure 8 This is the second schematic diagram of the right-side structure of the base of the battery charging device provided in the embodiment of the present invention;

[0052] Figure 9 This is one of the schematic diagrams of the sorting wheel structure of the battery charging device provided in the embodiments of the present invention;

[0053] Figure 10 This is one of the schematic diagrams of the zigzag shaking plate structure of the battery charging device provided in the embodiments of the present invention;

[0054] Figure 11 This is one of the structural schematic diagrams of the combination of sorting wheel and zigzag shaking plate of the battery charging device provided in the embodiments of the present invention;

[0055] Figure 12 This is the second schematic diagram of the structure of the battery charging device provided in this embodiment of the invention, which combines a sorting wheel and a zigzag shaking plate.

[0056] Figure 13 This is one of the structural schematic diagrams of the combination of sorting wheel + zigzag shaking plate + multi-channel independent charging mechanism of the battery charging device provided in the embodiment of the present invention;

[0057] Figure 14 This is one of the schematic diagrams showing the positions of the photosensitive signal holes on the integrated base in the battery charging device provided in this embodiment of the invention;

[0058] Figure 15 This is one of the principle block diagrams of the battery charging device provided in the embodiments of the present invention. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Please see Figures 1 to 13 , Figure 1 This is one of the structural schematic diagrams of the battery charging device provided in the embodiments of the present invention, showing the assembled state; Figure 2 This is the second structural schematic diagram of the battery charging device provided in the embodiment of the present invention, showing the components in an open state; Figure 3 This is one of the schematic diagrams of the internal structure of the battery charging device housing provided in the embodiments of the present invention, showing the assembled state; Figure 4 This is the second schematic diagram of the internal structure of the battery charging device housing provided in the embodiment of the present invention, showing the components in an open display state; Figure 5 This is the third schematic diagram of the battery charging device provided in the embodiment of the present invention; Figure 6 This is one of the schematic diagrams of the left body structure of the base of the battery charging device provided in the embodiments of the present invention; Figure 7 This is one of the schematic diagrams of the right body structure of the base of the battery charging device provided in the embodiments of the present invention; Figure 8 This is the second schematic diagram of the right-side structure of the base of the battery charging device provided in the embodiment of the present invention; Figure 9 This is one of the schematic diagrams of the sorting wheel structure of the battery charging device provided in the embodiments of the present invention; Figure 10 This is one of the schematic diagrams of the zigzag shaking plate structure of the battery charging device provided in the embodiments of the present invention; Figure 11 This is one of the structural schematic diagrams of the combination of sorting wheel and zigzag shaking plate of the battery charging device provided in the embodiments of the present invention; Figure 12 This is the second schematic diagram of the structure of the battery charging device provided in this embodiment of the invention, which combines a sorting wheel and a zigzag shaking plate. Figure 13 This is one of the structural schematic diagrams of the combination of sorting wheel + zigzag shaking plate + multi-channel independent charging mechanism of the battery charging device provided in the embodiment of the present invention; Figure 14 This is one of the schematic diagrams showing the positions of the photosensitive signal holes on the integrated base in the battery charging device provided in this embodiment of the invention; Figure 15 This is one of the principle block diagrams of the battery charging device provided in the embodiments of the present invention.

[0062] like Figure 1 As shown, the battery charging device 100 of the present invention can be roughly divided into three parts: the upper part is the battery placement part (not shown in the figure), the middle part is the battery sorting and charging part (not shown in the figure), and the lower part is the battery storage part 6.

[0063] The battery placement section is used to place at least one battery that needs to be charged; the battery sorting and charging section is used to sort, transport and charge the placed at least one battery; the battery storage section 6 is used to store the charged batteries.

[0064] like Figures 2 to 5 As shown, the battery charging device 100 of the present invention includes an outer housing 1 and an integrated base 2, a zigzag shaking plate 3, a sorting wheel 4, a multi-channel independent charging mechanism 7, a motor drive unit 5, and a battery storage unit 6 placed inside the housing 1.

[0065] The integrated base 2 is used to integrate functional structures, and has multiple functions such as support, limiting, guiding and detection. The zigzag shaking plate 3 is used to passively swing to break the battery arch. The sorting wheel 4 is used to cooperate concentrically with the inner and outer double ring track 27 on the integrated base 2 to realize the weight-based sorting of AAA batteries into the inner ring and AA batteries into the outer ring. The motor drive unit 5 is used to communicate with the sorting wheel 4 and drive the sorting wheel 4 to rotate to realize the charging and transfer of batteries. The battery storage unit 6 is used to store the fully charged batteries discharged from the charging station of the sorting wheel 4.

[0066] (a) Shell and integrated base

[0067] The housing 1 serves as the outer shell of the battery charging device 100, housing the integrated base 2, the zigzag shaking plate 3, the sorting wheel 4, the motor drive unit 5, and the battery storage unit 6, etc., inside, preventing dust from entering while also providing support for the internal structure.

[0068] like Figures 6 to 8As shown, the integrated base 2 is symmetrically assembled from a left base body 21 and a right base body 22 formed in one piece. The integrated base 2 integrates the battery compartment 23 to be charged, the vibration plate shaft mounting position 24, the wheel shaft position 25, the inner and outer double-ring annular tracks 27, and the motor fixing column 28. Among them, the vibration plate shaft mounting position 24 is used to install the zigzag vibration plate 3, the wheel shaft position 25 is used to install the sorting wheel 4, the inner and outer double-ring annular tracks 27 are used to cooperate concentrically with the sorting wheel 4, and the motor fixing column 28 is used to install the motor drive unit 5.

[0069] It is understood that after symmetrically splicing the left base 21 and the right base 22, the space above them constitutes the battery compartment 23 for placing at least one battery that needs to be charged. The battery compartment 23 is the battery placement part. In this embodiment, the battery compartment 23 has sufficient space to accommodate at least 40 AA / AAA mixed batteries.

[0070] The vibration plate shaft mounting position 24 is located at the lower end of the battery compartment 23 to be charged, and is used to install the zigzag vibration plate 3; the rotating wheel shaft position 25 is located at the lower end of the vibration plate shaft mounting position 24, and is used to install the rotating wheel shaft position 25; the motor fixing column 28 is on the outside of the integrated base 2, and is used to fix the motor drive unit 5.

[0071] In some optional embodiments, the integrated base 2 is further provided with an inlet slot 261 and an inlet slot single-cell limiting rib 26. The inlet slot 261 is located at the lower end of the zigzag shaking plate 3. The inlet slot single-cell limiting rib 26 is used to limit the inlet slot 261 to only one battery at a time, thereby preventing misjudgment of two batteries in the same slot.

[0072] Specifically, such as Figure 2 As shown, the housing 1 may include an upper cover 11 located on the top of the housing 1, a front cover 12 located on the front of the housing 1, and a rear cover 13 located on the back of the housing 1. The front cover 12 and the rear cover 13 of the housing 1 can provide support for the left body 21 and the right body 22 of the base, which are symmetrically positioned on the left and right sides, respectively.

[0073] When using the device, the user can open the top cover 11 of the battery compartment 23 located on the upper part of the battery charging device 100 and insert the battery that needs to be charged. The top cover 11 may have holes or a separate protruding boss to serve as a handle, or it may be directly embedded without a handle; this embodiment does not impose any restrictions. In addition, the top cover 11 may also be used in an open state without a separate feature.

[0074] At this point, although battery insertion is convenient, inserting a large number of batteries may cause them to stack and block or jam in the battery placement section, preventing them from being delivered to the battery charging section. To solve this problem, the present invention designs a separate arch-breaking structure.

[0075] (ii) Zigzag shaking plate (arch breaking mechanism)

[0076] like Figures 10 to 12 As shown, the zigzag shaking plate 3 serves as the arch-breaking structure of the present invention. The zigzag shaking plate 3 is fixedly installed on the integrated base 2 by the shaking plate shaft 31 at one end, and the other end is movably abutted against the sorting wheel 4. After the sorting wheel 4 rotates, it is passively oscillating to achieve the shaking and arch-breaking of the batteries 23 in the battery compartment to be charged.

[0077] The zigzag shaking plate 3 is an integrated two-stage guide surface structure, which includes, in sequence along the battery conveying direction, a shaking plate shaft 31, an upper main body section 32, a downward bending section 33, and an extension section 34. The shaking plate shaft 31 is set at the starting end of the zigzag shaking plate 3 as a rotation fulcrum, and is used to fix the zigzag shaking plate 3 to the shaking plate shaft mounting position 24 of the integrated base 2 via the shaking plate shaft 31. The downward bending section 33 extends downward from the end of the upper main body section 32 at a greater angle. The extension section 34 extends further from the end of the downward bending section 33 and forms a movable contact with the outer periphery of the sorting wheel 4.

[0078] In other words, the zigzag shaking plate 3 adopts an integrated molding structure with a shaft at one end, which can be directly installed on the shaking plate shaft mounting position 24 of the integrated base 2 without the need for an additional shaft, simplifying the assembly process; the zigzag shaking plate 3 has a two-stage guide surface structure, divided into an upper main body section 32, a downward bending section 33, and an extension section 34. The thickness of the upper main body section 32 near the shaking plate shaft 31 is greater than that away from the shaking plate shaft 31. The inclination angle of section 32 is smaller than that of the downward bending section 33, and the lower end of the extension section 34 curves outward (shorter lateral length), while the lateral length of the upper main body section 32 is longer. Its thickness near the vibrating plate shaft 31 is greater than its thickness away from the shaft 31, forming a first-level gentle slope. The inclination angle of the downward bending section 33 is greater than that of the upper main body section 32, forming a first-level steep slope. This creates a two-level guide surface of "gentle slope + steep slope," facilitating the smooth sliding of the battery onto the zigzag vibrating plate 3. The extension section 34 of the zigzag vibrating plate 3 precisely engages with the outer circumference of the sorting wheel 4, passively oscillating by alternating solid and void movements with the slots of the sorting wheel 4. This eliminates gear meshing, resulting in low operating noise and a low failure rate. The zigzag vibrating plate 3's arch-breaking capability can meet the feeding requirements of 40+ high-capacity batteries.

[0079] The arch-breaking principle is as follows: When the sorting wheel rotates, the figure-eight grooves (solid and open sections) on its outer periphery create a passive, unpowered interference oscillation with the short, protruding section at the lower end of the vibrating plate. Specifically, the solid section of the sorting wheel periodically pushes the raised end of the vibrating plate upwards; when the open section of the figure-eight groove passes, the vibrating plate falls back to its original position under the pressure of the weight of the battery to be charged. This continuous physical interference, driven entirely by the rotational motion of the sorting wheel, creates continuous vibration, effectively breaking up the batteries piled up in the charging compartment, achieving efficient automatic arch breaking, ensuring smooth feeding of 40+ mixed batteries, solving the blockage problem, and requiring no additional power source or complex control system.

[0080] Next, the batteries are transported to the battery charging unit. Since the battery compartment 23 can hold mixed batteries, the commonly used batteries are cylindrical, with AA batteries having a diameter of 15mm and AAA batteries having a diameter of 11mm. To automatically sort the AA / AAA mixed batteries before charging, this invention designs a special automatic sorting structure.

[0081] (III) Sorting wheel and inner and outer double-ring circular track

[0082] like Figure 9 as well as Figures 11 to 12 As shown, the sorting wheel 4 has a cylindrical structure with an outer diameter of 70 mm and an axial length of 60 mm. Multiple sets of outwardly opening figure-eight grooves 41 are evenly distributed on the outer circumference of the sorting wheel 4. Each set of figure-eight grooves 41 is composed of an inner small-diameter groove 42 and an outer large-diameter groove 43.

[0083] It is understood that each set of figure-eight slots 41 is an outward-opening double-connected figure-eight slot. Specifically, the opening size of the inner small-diameter slot 42 is adapted to AAA batteries, and the opening size of the outer large-diameter slot 43 is adapted to AA batteries. The size of the connecting opening (not shown in the figure) between the inner small-diameter slot 42 and the outer large-diameter slot 43 is not smaller than the opening size of the inner small-diameter slot 42, and is also smaller than 13.5mm, the minimum size of an AA battery known to those skilled in the art.

[0084] For example, the opening size of the inner small-diameter groove can be 11mm to precisely fit the size of an AA battery, and the opening size of the outer large-diameter groove can be 15mm to precisely fit the size of an AAA battery. The width of the connecting opening between the inner small-diameter groove 42 and the outer large-diameter groove 43 can be 11mm to connect the inner and outer ring through holes.

[0085] During use, when the batteries fall into the figure-eight slot 41, AAA batteries, due to their own weight and smaller diameter, can smoothly pass through the 11mm wide connecting opening and fall into the inner small-diameter slot 42; while AA batteries, because their diameter is greater than 11mm, are blocked by the limiting structures on both sides of the connecting opening (not shown in the figure), and thus remain in the outer large-diameter slot 43. The design of the sorting wheel 4 realizes purely mechanical, sensorless AA / AAA battery self-weight sorting, significantly reducing costs and improving sorting stability.

[0086] like Figures 6 to 8 As shown, the inner and outer double-ring annular tracks 27 serve as a cooperating structure with the sorting wheel 4, including an outer ring annular track 271 and an inner ring annular track 272. The inner and outer double-ring annular tracks 27 and the sorting wheel 4 work concentrically to achieve weight-based sorting of AAA batteries into the inner ring and AA batteries confined to the outer ring. In other words, by employing multiple sets of outward-opening figure-eight-shaped slotted sorting wheels and inner and outer double-ring annular tracks, a battery transport channel is formed, supporting the mixed loading of AA / AAA batteries. Instantaneous in-situ sorting is completed by the batteries' own weight; AAA batteries fall into the inner ring track, and AA batteries are confined to the outer ring track, eliminating the need for sensor-assisted prediction and ensuring accurate and error-free sorting. Specifically, the outer ring annular track 271 can adopt a hollow ring wall structure with an inner wall diameter of 75.5 mm, concentrically surrounding the outside of the sorting wheel. The main function of the outer ring annular track 271 is to form an external guiding and protective wall for the batteries, effectively preventing them from falling off or getting stuck during transport and ensuring the stability of battery transport. The inner annular track 272 can be a solid circular guide rail with a diameter of 44mm and a thickness of 1mm, and is concentrically arranged with the outer annular track 271. The inner annular track 272 is used to improve the coaxiality of the sorting rotor, further preventing the batteries from deviating or getting stuck within the inner track, ensuring smooth sorting and charging processes. This ensures a precise fit between the sorting rotor 4 and the inner and outer double annular tracks 27, achieving stable battery transport and sorting.

[0087] In addition to sorting and transferring batteries, the sorting wheel 4 automatically performs charging when the battery arrives at the charging station on the corresponding sorting wheel 4, while simultaneously checking for defects or abnormalities.

[0088] The motor drive unit 5 is mounted on the motor fixing column 28 and communicates with the sorting wheel 4, driving the sorting wheel 4 to rotate and realize the charging and transfer of the battery.

[0089] (iv) Charging station and workflow

[0090] like Figure 13As shown, specifically, after the batteries are sorted, they enter the charging station for charging. The sorting wheel 4 includes at least one set of figure-eight slots 41 as the charging station, with multiple independent charging mechanisms 7 configured at both ends to independently charge the batteries entering the charging station, and it has an automatic polarity identification function. The multiple independent charging mechanism 7 is an existing structure and will not be described in detail in this embodiment. It can be equipped with a detection spring and a dedicated charging circuit. The MCU control module can automatically identify the battery type, battery condition, polarity, etc., and match the charging curves corresponding to 1.2V NiMH, 1.5V step-down lithium batteries, and 3.7V lithium batteries to achieve multi-channel independent safe charging. After charging, the batteries are separated by a valve, with fully charged batteries entering the fully charged compartment and faulty batteries entering the faulty compartment. In other words, the MCU control module is also configured to: record the battery status of each battery after it has been charged at the charging station, and when the battery is sent to the exit station by the sorting wheel 4, control the valve to divide the battery into compartments, sending fully charged batteries into the fully charged compartment and faulty batteries into the faulty compartment.

[0091] The charging process is as follows: When all charging stations are occupied by batteries, the motor drive unit 5 controls the sorting wheel 4 to stop rotating, and the multi-channel independent charging mechanism 7 begins charging the batteries. The MCU control module can determine the positive and negative terminals of the batteries through the automatic polarity identification circuit and match the charging curve (1.2V NiMH / 1.5V buck lithium battery / 3.7V lithium battery). After all batteries are fully charged, the motor drive unit 5 restarts the sorting wheel 4 to rotate again, sequentially sending the charged batteries to the exit station, while simultaneously loading the next group of batteries into each charging station for the next round of charging.

[0092] This embodiment takes the sorting rotor as an example, which includes eight stations. Along the circumference, there are sequentially arranged a 45° inlet station, a 90° sorting station, a 135° first charging station, a 180° second charging station, a 225° third charging station, a 270° fourth charging station, an outlet station, and a rotor start / stop station (not shown in the figure). When all four charging stations are occupied by batteries sorted by the sorting stations, the sorting rotor 4 stops rotating to charge. After all batteries are charged, the sorting rotor 4 rotates again to send the batteries out through the valve 8 for compartmentation and loading into the next group of batteries. Specifically, the sorting rotor adopts an eight-station cyclic workflow to achieve fully automated battery processing from loading to storage.

[0093] 1.45° Inlet Slot Station: After the zigzag shaking plate breaks the arch, 40+ mixed batteries fall orderly into the figure-eight gourd slot of the sorting wheel.

[0094] 2. 90° Sorting Station: At the instant the batteries fall into the figure-eight slot of the sorting wheel, AAA batteries, due to their own weight and smaller diameter, can smoothly pass through the 11mm wide connecting opening and fall into the inner small-diameter slot; while AA batteries, because their diameter is greater than 11mm, are blocked by the limiting structures on both sides of the connecting opening, thus remaining in the outer large-diameter slot. Thus, the purely mechanical weight-based sorting of AA / AAA batteries is completed instantaneously when the batteries are placed, without the need for additional detection or transfer steps.

[0095] 3.135° First charging station: The battery enters the charging station and begins testing and charging.

[0096] 4.180° Second charging station: Battery continuously charging.

[0097] 5.225° Third charging station: Performs periodic charging tests; if any abnormality is found, it is marked as a faulty battery.

[0098] 6.270° Fourth charging position: After completing the entire charging process, determine the battery status as "fully charged" or "bad".

[0099] 7. Exit Station: The charged battery slides out of the track by its own weight and enters the inclined guide rail (not shown in the figure).

[0100] 8. Rotary wheel start / stop station: When the rotary wheel rotates forward or backward, each slot travel trigger position will trigger a photosensitive signal. When the MCU detects the trigger signal, it will control the rotary wheel to start rotating or stop according to the algorithm.

[0101] It should be noted that the sorting wheel 4 may have a travel trigger position 411 on the outside of each group of figure-eight slots.

[0102] In this way, the eight-station cycle and four-channel synchronous charging mechanism realizes the whole process of battery sorting, charging and storage without human intervention, with a high degree of automation, which greatly improves user convenience.

[0103] (v) Battery storage section and valve compartment

[0104] The battery storage section 6 is located at the lower part of the battery charging device 100 and is used to store the fully charged batteries discharged from the charging station of the sorting roller 4. The integrated base 2 also includes a valve shaft 29 located at the lower end of the sorting roller 4. The battery storage section 6 includes a fully charged compartment 61 and a faulty battery compartment 62. The valve shaft 29 is used to house a valve 8, which is used to separate the fully charged batteries into compartments. Fully charged batteries are guided into the fully charged compartment 61, and faulty batteries are guided into the faulty battery compartment 62.

[0105] In an optional embodiment, the valve 8 corresponds to the fully charged compartment 61 when it does not reverse, and to the faulty compartment 62 when it reverses; alternatively, the valve 8 corresponds to the fully charged compartment 61 when it reverses, and to the faulty compartment 62 when it does not reverse. This embodiment does not impose any limitations on this. A fully charged compartment channel (not shown in the figure) is provided between the valve pivot 29 and the upper part of the fully charged compartment 61, and a faulty compartment channel (not shown in the figure) is provided between the valve pivot 29 and the upper part of the faulty compartment 62.

[0106] It is understood that the motor drive unit 5 includes two units, and the motor fixing column 28 also includes two units. One motor fixing column 28 is integrally integrated into the integrated base 2 at the position corresponding to the wheel shaft 25, and the other is integrally integrated into the integrated base 2 at the position corresponding to the valve shaft 29. One set of motor drive units 5 is used to drive the sorting wheel 4 to rotate, realizing the charging and transfer of batteries; the other set of motor drive units 5 is used to drive the valve 8 to rotate, completing the compartmentation.

[0107] (vi) Light sensing detection and empty cargo compartment anti-false judgment logic

[0108] like Figures 14 to 15 As shown, the integrated base 2 also has multiple photosensitive signal holes, each housing a photoelectric sensor 200. That is, the battery charging device 100 further includes photoelectric sensors 200, which can be a pair of infrared emitters and receivers. The photosensitive signal holes can be located at the detection positions of the inlet slot 261, the sorting wheel 4, the valve 8, and the battery storage section 6. Taking an integrated base 2 with nine photosensitive signal holes as an example, these holes include at least: a first detection hole for detecting whether there is a battery in the inlet slot; second and third detection holes for identifying the battery model sorted at the sorting wheel; a fourth detection hole for triggering the sorting wheel to reverse; a fifth detection hole for controlling the start and stop of the sorting wheel; a sixth and seventh detection holes for detecting the valve switching position; and an eighth and ninth detection holes for detecting the full charge and faulty battery states.

[0109] Specifically, the first detection hole is the inlet slot battery signal hole 201, which is set at the inlet slot to detect whether a battery has entered the inlet slot.

[0110] The second detection hole is the AA battery signal hole 202 in the sorting slot, and the third detection hole is the AAA battery signal hole 203 in the sorting slot. They are respectively set at positions corresponding to the AA battery sorting position and the AAA battery sorting position of the sorting wheel, and are used to identify the battery model after passing through the sorting position.

[0111] The fourth detection hole is the reverse start signal hole 204 when the inlet is empty. It is located behind the inlet slot and is used to trigger the wheel to reverse when the battery compartment to be charged is empty, in conjunction with the detection of the wheel travel trigger position.

[0112] The fifth detection hole is the rotary wheel start / stop stroke signal hole 205, which is set at the position corresponding to the rotary wheel start / stop station of the sorting rotary wheel. It is used to detect the stroke trigger position of the rotary wheel groove to control the start and stop of the rotary wheel.

[0113] The sixth detection hole is the valve selection signal hole 206 for the full charge compartment channel, and the seventh detection hole is the valve selection signal hole 207 for the faulty charge compartment channel. These are located near the valve's axis and are used to detect whether the valve has switched to the full charge compartment channel or the faulty charge compartment channel, respectively. Specifically, the valve selection signal hole 206 for the full charge compartment channel can be located on one side of the valve 8's full charge compartment channel to detect whether the valve has rotated to the position connecting to the full charge compartment; the valve selection signal hole 207 for the faulty charge compartment channel is located on one side of the valve 8's faulty charge compartment channel to detect whether the valve has rotated to the position connecting to the faulty charge compartment.

[0114] The eighth detection hole is the full charge signal hole 208 of the faulty battery compartment, which is located at the entrance of the faulty battery compartment and is used to detect whether the faulty battery compartment is full; the ninth detection hole is the full charge signal hole 209 of the full charge compartment, which is located at the entrance of the full charge compartment and is used to detect whether the full charge compartment is full.

[0115] These multiple sets of light-sensing signal holes precisely correspond to each operating position of the battery charging device 100, eliminating the need for additional testing brackets, resulting in high assembly precision and a compact overall structure.

[0116] The battery charging device 100 also includes an MCU control module 300 and a display module 14. The MCU control module 300 cooperates with and is electrically connected to the photoelectric sensor 200, the display module 14, the motor drive unit 5, and the multi-channel independent charging mechanism 7.

[0117] The MCU control module is configured to: determine the positive and negative terminals of the battery through an automatic polarity identification circuit, match the charging curve (1.2V NiMH / 1.5V buck lithium battery / 3.7V lithium battery), and control the charging of the battery by multiple independent charging mechanisms 7.

[0118] The MCU control module is configured to record the battery status of each battery after it has been charged at the charging station, and when the battery is sent to the exit station by the sorting wheel 4, control the motor drive unit 5 connected to the valve drive to control the valve compartment, thereby sending the fully charged battery into the fully charged compartment and the faulty battery into the faulty battery compartment.

[0119] The MCU control module is configured to: based on the photoelectric sensor signal at the first detection hole, when an empty compartment is detected, control the motor drive unit to drive the sorting wheel to perform six shaking actions in sequence: forward rotation, reverse rotation, forward rotation, reverse rotation, forward rotation, reverse rotation, and reverse rotation. If an empty compartment signal is still received after six shaking actions, it is determined to be an empty compartment, and the display module is controlled to display an empty compartment prompt. Based on the photoelectric sensor signals at the second and third detection holes, the battery model passing through the sorting station is identified and recorded. Based on the photoelectric sensor signals at the fourth and fifth detection holes, the starting, stopping, and reversing of the sorting wheel are controlled. Based on the photoelectric sensor signals at the sixth and seventh detection holes, the valve is confirmed to switch to the full charge compartment channel or the faulty battery compartment channel. Based on the photoelectric sensor signals at the eighth and ninth detection holes, it is determined whether the full charge compartment or the faulty battery compartment is full, and when it is full, the display module is controlled to display a full compartment prompt.

[0120] Specifically, once the photoelectric sensors detect the signals from their respective corresponding light-sensing apertures, the MCU control module will take corresponding actions:

[0121] 1. When the battery signal hole 201 in the inlet slot detects that the inlet slot is empty, the MCU control module is configured with a three-stage jitter logic for empty compartment forward and reverse rotation. It first executes six jitter actions in sequence: forward rotation, reverse rotation, forward rotation, reverse rotation, forward rotation, reverse rotation. If the empty compartment signal is still continuously received, it is confirmed that the compartment is empty, and the display module will flash AAA / AA to remind the user that the charging compartment is now empty. When it is detected that there is a battery in the inlet slot, the wheel moves forward to load the battery.

[0122] It is understandable that there are three cycles of forward and reverse rotation, which is a total of six shaking movements including forward rotation, reverse rotation, forward rotation, reverse rotation, forward rotation, and reverse rotation.

[0123] 2. When the photoelectric sensor at the AA battery signal hole position 202 of the sorting slot detects the battery, record that the battery is an AA battery.

[0124] 3. When the photoelectric sensor at the AAA battery signal hole position 203 of the sorting slot detects the battery, record that the battery is an AAA battery.

[0125] 4. When the photoelectric sensor at the start / stop stroke signal hole 205 of the rotary wheel detects the stroke trigger position of the rotary wheel groove, it controls the sorting rotary wheel to stop or move forward;

[0126] 5. When the charging compartment needs to be shaken and the inlet is empty, the reverse start signal hole 204 detects the wheel travel trigger position and controls the wheel to reverse;

[0127] 6. When the MCU controls the valve to move to a position that prevents the bad charge compartment channel from flowing freely, the full charge compartment channel is selected;

[0128] 7. When the MCU controls the valve to move to a position that prevents the full charge compartment channel from being open, the bad charge compartment channel is selected;

[0129] 8. When a battery is detected at the bad battery compartment inlet, it can be determined that the bad battery compartment is full and the display module can be controlled to display a full battery prompt.

[0130] 9. When a battery is detected at the full battery compartment inlet, it can be determined that the full battery compartment is full and the display module can be controlled to display a full battery notification.

[0131] It is understandable that both forward rotation and forward rotation of the wheel are in a forward rotation state.

[0132] In other words, the present invention also includes a control and discharge mechanism: photoelectric sensors rely on the light-sensing signal holes on the integrated base to provide real-time feedback on the equipment's operating status; the start and stop stroke signal holes of the rotary wheel precisely control the rotary wheel's indexing; in the empty chamber state, the three-stage forward and reverse shaking logic avoids misjudgment; the valve can accurately reverse according to the battery status to separate fully charged batteries from damaged batteries; the full chamber signal hole can trigger a full chamber protection action, such as a shutdown protection, to prevent battery overflow.

[0133] The main workflow of this invention is as follows:

[0134] 1. Feeding and arch breaking stage: AA / AAA mixed batteries are put into the battery compartment to be charged. The battery signal position of the inlet slot is monitored in real time to check the battery entry status. If there is no battery signal, the MCU combines the feedback of the empty compartment signal position of the battery compartment to control the sorting wheel to rotate forward and backward three times, which drives the zigzag shaking plate to swing and break the arch. Only after confirming that there are no batteries multiple times will the machine be stopped due to the empty compartment to avoid misjudgment.

[0135] 2. Weight-based sorting stage: After the batteries are successfully placed into the slot, they are lifted by the inner ring track and moved to the figure-eight slot. AAA batteries fall into the inner track through the slot opening due to their own weight, while AA batteries are restricted to the outer track, thus completing the sensorless automatic sorting.

[0136] 3. Intelligent charging stage: After sorting, the batteries are sequentially fed into the charging station by the sorting wheel. The MCU control module automatically identifies the battery type and condition, adapts to the corresponding charging curve to complete independent charging, and monitors the charging status throughout the process.

[0137] 4. Sorting and Discharging Stage: After the battery is fully charged or determined to be a bad battery, the sorting wheel pushes the battery to the discharge position. The MCU control module controls the valve to switch directions according to the battery status. Fully charged batteries are sent to the full charge bin, and bad batteries are sent to the bad battery bin. When the bin is full, the full bin protection action, such as the shutdown protection, can be triggered to avoid battery overflow.

[0138] It is understood that the battery charging device 100 may also include a storage module 401, a communication module 402, and a power module 403, which cooperate with and are electrically connected to the MCU control module 300. The storage module 401, communication module 402, and power module 403 are all existing technologies, and will not be described in detail here.

[0139] The automatic battery charging device provided by this invention includes an integrated base, a battery compartment to be charged, inner and outer double-ring annular tracks, a zigzag vibrating plate, a sorting wheel, a multi-channel independent charging mechanism, a motor drive unit, and a battery storage unit; wherein: the integrated base is symmetrically spliced ​​from an integrally formed base left body and base right body, and the integrated base integrates the battery compartment to be charged, a vibrating plate shaft mounting position for mounting the zigzag vibrating plate, a wheel shaft position for mounting the sorting wheel, and the sorting wheel. The inner and outer double-ring annular tracks are concentrically aligned, and a motor mounting column is used to install the motor drive unit; the battery compartment to be charged is located on the upper part of the battery charging device and is used to accommodate multiple AA / AAA hybrid batteries that need to be charged; the zigzag shaking plate is rotatably mounted on the shaking plate shaft mounting position at one end via a shaking plate shaft, and the other end is movably abutting against the sorting wheel, and passively swings with the rotation of the sorting wheel to break up battery blockages; multiple sets of outwardly opening figure-eight goblets are evenly distributed on the outer circumference of the sorting wheel. The device comprises a series of figure-eight troughs, each consisting of an inner small-diameter trough and an outer large-diameter trough. The inner small-diameter trough is sized to allow only AAA batteries to pass through, while the outer large-diameter trough is sized to accommodate AA batteries. At least one set of figure-eight troughs serves as a charging station. A multi-channel independent charging mechanism is located at each charging station to independently charge batteries entering the station. A motor drive unit is connected to the sorting wheel to drive its rotation. The inner and outer double-ring annular tracks include an outer annular track concentrically surrounding the outside of the sorting wheel and an inner annular track concentrically positioned with the outer track. These tracks, cooperating concentrically with the sorting wheel, facilitate the sorting of AAA batteries by their own weight (falling into the inner track) and AA batteries by their own weight (being confined to the outer track) and the charging and transport of the batteries as the wheel rotates. A battery storage unit, located at the bottom of the charging device, stores fully charged batteries discharged from the charging station of the sorting wheel.

[0140] Thus, the sorting wheel of this invention adopts a unique figure-eight gourd groove structure, which completes the pure mechanical weight-based sorting of AA / AAA mixed batteries the moment the batteries are placed; the zigzag shaking plate and the figure-eight gourd groove of the sorting wheel form a passive interference oscillation without a power source, which is entirely driven by the rotational motion of the sorting wheel. Through physical interference, it achieves efficient automatic arch breaking, effectively preventing battery accumulation and blockage, and has high material loading efficiency; the inner and outer double-ring circular track and integrated base design ensure the stability of the equipment operation and effectively avoid battery jamming; the eight-station cycle and four-way synchronous charging mechanism realize the whole process of battery sorting, charging and storage without human intervention, with a high degree of automation and greatly improving user convenience.

[0141] (vii) Display module

[0142] To further enhance visual intelligent interaction, such as Figures 1 to 2 As shown, the battery charging device 100 also includes a display module 14 disposed on the housing 1.

[0143] The display module 14 can be installed in a conspicuous location on the housing 1 of the battery charging device 100, such as on the front cover 12 of the front of the housing 1. Figure 15 As shown, the display module 14 is electrically connected to the MCU control module, providing comprehensive device status information, such as:

[0144] 1. Status area for each charging station: Real-time display of battery status at each station (waiting to charge / charging / fully charged / faulty battery), allowing users to intuitively understand the charging process.

[0145] 2. Battery Model + Quantity Display Area: Accurately counts the quantity of six battery groups: NiMhAA, NiMhAAA, Li-ionAA, Li-ionAAA, BadAA, and BadAAA, providing users with detailed battery asset management data.

[0146] 3. Dynamic charging progress indicator: The charging progress is indicated by a dynamic flashing indicator, enhancing visual feedback.

[0147] 4. Battery status display area: Displays the number of fully charged and faulty batteries, and includes a flashing overflow icon to promptly remind the user to take action.

[0148] 5. Fault Alarm Zone: When the battery is stuck or charging is abnormal, the entire screen flashes and displays the fault location prompt (such as "Entrance Stuck" or "Third Charging Station Abnormal"), which greatly improves the efficiency of fault diagnosis.

[0149] 6. Equipment Operation Mode Display Area: Displays the current equipment operation mode (automatic sorting and charging / standby / fault alarm).

[0150] 7. Communication Connection Status Area: The communication connection status is clearly indicated by three icons: Not Connected, in Network Distribution, and Connected.

[0151] In some optional embodiments, the battery charging device 100 further includes a communication module 402, supporting communication connections such as Wi-Fi and Bluetooth connections. Users can remotely perform various functions via a mobile app, for example:

[0152] 1. Real-time status monitoring: Remotely view the real-time status of battery sorting and charging, as well as the statistics of the number of six groups of batteries and the storage status of the compartment.

[0153] 2. Remote control: Remotely control the power on / off of the equipment and the charging process to start / pause, enabling convenient remote management.

[0154] Please note to all technical personnel: Although the present invention has been described according to the specific embodiments above, the inventive concept of the present invention is not limited to this invention. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

[0155] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic battery charging device, characterized in that, Includes a housing and an integrated base, a zigzag shaking plate, a sorting wheel, a multi-channel independent charging mechanism, a motor drive unit, and a battery storage unit housed inside the housing; wherein: The integrated base is composed of a left and right base body symmetrically spliced ​​together. The integrated base has an integrated battery compartment, inner and outer double-ring track, a shaking plate shaft mounting position, a wheel shaft position for mounting the sorting wheel, and a motor fixing column for mounting the motor drive unit. The battery compartment to be charged is located at the top of the battery charging device and is used to accommodate multiple AA / AAA hybrid batteries that need to be charged; The zigzag shaking plate is rotatably mounted on the shaking plate shaft mounting position at one end via a shaking plate shaft, and the other end is movably abutted against the sorting wheel, and passively swings as the sorting wheel rotates to break the battery blockage. The sorting wheel has multiple sets of outwardly opening figure-eight grooves evenly distributed on its outer circumference. Each set of figure-eight grooves consists of an inner small-diameter groove and an outer large-diameter groove connected together. The inner small-diameter groove is sized to allow only AAA batteries to pass through, while the outer large-diameter groove is sized to accommodate AA batteries. At least one set of figure-eight grooves serves as a charging station. The multi-channel independent charging mechanism is located at the charging station and is used to independently charge the batteries entering the charging station. The motor drive unit is connected to the sorting wheel for driving the sorting wheel to rotate; The inner and outer double-ring circular tracks include an outer ring circular track that is concentrically encircled around the outside of the sorting wheel and an inner ring circular track that is concentrically arranged with the outer ring circular track; the inner and outer double-ring circular tracks are concentrically matched with the sorting wheel and are used to realize the weight-based sorting of AAA batteries falling into the inner ring track and AA batteries being limited and stopped in the outer ring track when the sorting wheel rotates, as well as the charging and transfer of batteries. The battery storage section is located at the lower part of the battery charging device and is used to store the fully charged batteries discharged from the charging station of the sorting wheel.

2. The automatic battery charging device according to claim 1, characterized in that, The zigzag vibrating plate is an integrally formed two-stage guide surface structure, including a vibrating plate shaft, an upper main body section, a downward bending section, and an extension section connected in sequence; the vibrating plate shaft serves as a rotation fulcrum, the thickness of the upper main body section near the vibrating plate shaft is greater than that away from the vibrating plate shaft, the inclination angle of the upper main body section is smaller than that of the downward bending section, and the extension section movably abuts against the sorting wheel.

3. The automatic sorting battery charging device according to claim 1, characterized in that, The integrated base is also provided with an inlet slot and a single limiting rib for the inlet slot. The inlet slot is located at the lower end of the zigzag shaking plate, and the single limiting rib for the inlet slot is used to limit the passage of only one battery at a time.

4. The automatic sorting battery charging device according to claim 1, characterized in that, The inner small-diameter groove has an opening size of 11mm, the outer large-diameter groove has an opening size of 15mm, and the connecting opening size between the inner small-diameter groove and the outer large-diameter groove is 11mm.

5. The automatic battery charging device according to claim 1, characterized in that, The sorting wheel is provided with an inlet slot station, a sorting station, four charging stations, an outlet station, and a wheel start / stop station in sequence along the circumference. The sorting wheel is configured such that when all charging stations are occupied by batteries that have been sorted by the sorting stations, the sorting wheel stops rotating to charge the batteries, and after charging is completed, it rotates again to deliver the batteries and load the next group of batteries.

6. The automatic battery charging device according to claim 1, characterized in that, The integrated base also includes a valve shaft located at the lower end of the sorting wheel. The battery storage section includes a fully charged compartment and a faulty battery compartment. The valve shaft is used to install a valve, which is used to separate the fully charged batteries into compartments. Fully charged batteries are guided to the fully charged compartment, and faulty batteries are guided to the faulty battery compartment.

7. The automatic sorting battery charging device according to claim 6, characterized in that, The integrated base has multiple optical signal sensing holes, each housing a photoelectric sensor; the optical signal sensing holes include at least: The first detection hole is used to detect whether there is a battery in the inlet slot; the second and third detection holes are used to identify the battery model sorted at the sorting wheel; the fourth detection hole is used to trigger the sorting wheel to reverse; the fifth detection hole is used to control the start and stop of the sorting wheel; the sixth and seventh detection holes are used to detect the valve switching position; and the eighth and ninth detection holes are used to detect the full charge compartment and the full charge compartment of the faulty battery compartment.

8. The automatic sorting battery charging device according to claim 7, characterized in that, It also includes an MCU control module and a display module. The MCU control module is electrically connected to the photoelectric sensor, the display module, the motor drive unit, and the multi-channel independent charging mechanism. The MCU control module is configured to: Based on the photoelectric sensor signal at the first detection hole, when an empty bin is detected, the motor drive unit is controlled to drive the sorting wheel to perform six shaking actions in sequence: forward rotation, reverse rotation, forward rotation, reverse rotation, forward rotation, and reverse rotation. If an empty bin signal is still received after six shaking actions, it is determined to be an empty bin and the display module is controlled to display an empty bin prompt. Based on the photoelectric sensor signals from the second and third detection holes, the battery model that has passed through the sorting station is identified and recorded. The starting, stopping, and reversing of the sorting wheel are controlled based on the photoelectric sensor signals from the fourth and fifth detection holes. Based on the photoelectric sensor signals from the sixth and seventh detection holes, confirm whether the valve switches to the full charge compartment channel or the faulty charge compartment channel. Based on the photoelectric sensor signals from the eighth and ninth detection holes, it is determined whether the full or faulty battery compartment is full, and when it is full, the display module is controlled to display a full battery prompt.

9. The automatic sorting battery charging device according to claim 8, characterized in that, The display module is mounted on the housing.

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