Battery adapter system

Abstract

This utility model relates to a battery adapter system, including a detachably connected first housing and a second housing, a circuit board fixedly disposed inside the first housing, and an output interface disposed in the first housing for electrically connecting to external electrical equipment; the second housing includes a battery insertion part and a power supply interface, the battery insertion part being used to install a target battery; one end of the power supply interface is electrically connected to the circuit board, and the other end passes through the battery insertion part and contacts the electrodes of the target battery. This solution combines the advantages of rapid adaptation to multiple battery brands and integrated power supply for multiple devices.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology for power tools and mobile devices, and in particular to a battery adapter system that adapts to the power supply needs of power tool batteries and electronic devices of different brands. Background Technology

[0002] In the field of power supply for power tools and mobile devices, traditional battery adapters typically employ a fixed interface design, compatible only with batteries from a single brand or specific model. This forces users to frequently change adapters or carry multiple sets of batteries when using tools from multiple brands, significantly increasing usage costs and operational complexity. For example, while existing technologies (such as CN211744091U and CN218569898U) have improved voltage output range or compactness through series-parallel switching or structural optimization, they still suffer from the following drawbacks:

[0003] The interface is fixed and cannot be replaced: the battery connector is integrally molded with the housing, and cannot be adapted to the interface geometry and electrode layout of different brands of batteries. Users need to purchase multiple adapters. Utility Model Content

[0004] The present invention provides a battery adapter system to solve the technical problem of difficulty in adapting batteries from multiple brands using traditional adapters.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a battery adapter system, including:

[0007] The housing includes a first housing and a second housing that are detachably connected;

[0008] The circuit board is fixedly disposed inside the first housing.

[0009] An output interface, integrated into the first housing, is used for electrical connection to external electrical equipment;

[0010] The second housing includes:

[0011] Battery connector for installing the target battery;

[0012] The power supply interface has one end electrically connected to the circuit board, and the other end passes through the battery connector and contacts the electrode of the target battery.

[0013] In one embodiment, the output interface includes a power tool interface for electrically connecting an external power tool.

[0014] In one embodiment, the output interface includes a USB interface and / or a Type-C interface for electrically connecting to an external electronic device.

[0015] In one embodiment, the circuit board integrates a voltage detection unit and a voltage distribution unit; the voltage detection unit acquires the battery voltage in real time through the power supply interface and compares it with a preset threshold; the voltage distribution unit controls the on / off state of the output interface based on the comparison result.

[0016] In one embodiment, the battery transfer system further includes a reminder device, which includes at least one of a visual prompting module and an auditory prompting module. The reminder device is electrically connected to the voltage detection unit and the voltage distribution unit. When the voltage detection unit detects that the voltage is below a threshold, the voltage distribution unit cuts off the output and triggers a warning state of the reminder device. When the voltage is above the threshold, the voltage distribution unit activates the normal state of the reminder device.

[0017] In one embodiment, the power supply interface includes positive electrode plates and negative electrode plates arranged at intervals.

[0018] In one embodiment, the positive electrode sheet and the negative electrode sheet are integrally fixed to the second housing by injection molding; the circuit board connection end of the power supply interface is exposed on the side of the second housing close to the first housing, and the battery contact end of the power supply interface extends to the side of the battery plug-in portion away from the first housing.

[0019] In one embodiment, the positive electrode sheet and / or the negative electrode sheet are L-shaped. The L-shaped positive electrode sheet and / or the L-shaped negative electrode sheet are defined as L-shaped conductive sheets. The L-shaped conductive sheet includes a vertical segment and a horizontal segment. The vertical segment is fixed to the side of the second housing near the first housing by screws. The horizontal segment extends through the battery connector and abuts against the battery electrode.

[0020] In one embodiment, the inner wall of the second housing is provided with an identification code, and the circuit board includes a photoelectric sensor corresponding to the identification code. The photoelectric sensor is used to read the type of the second housing and automatically match the output voltage parameters.

[0021] In one embodiment, a sealing ring is provided on the connection surface between the first housing and the second housing. In a plane projection perpendicular to the arrangement direction of the first housing and the second housing, the sealing ring is U-shaped or Y-shaped.

[0022] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0023] First, rapid compatibility with multiple battery brands: Through the design of a detachable first and second housing, different second housings can be replaced to adapt to the plug shape and electrode layout of the target brand battery. Users only need to replace the second housing instead of the entire system, which significantly reduces costs. Second, compact structure and easy maintenance: The modular housing design simplifies the maintenance process. Users can replace the second housing or the first housing components independently, reducing maintenance costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a structural diagram of the battery adapter system and the first model battery in Example 1;

[0026] Figure 2 for Figure 1 A structural diagram from another perspective;

[0027] Figure 3 This is a structural diagram of the battery adapter system and the second battery model in Example 2;

[0028] Figure 4 for Figure 3 A structural diagram from another perspective;

[0029] Figure 5 This is a structural diagram of the battery adapter system in Example 3 and the second type of battery;

[0030] Figure 6 for Figure 5 A structural diagram from another perspective;

[0031] Figure 7 This is a structural diagram of the battery adapter system in Example 4 and the second type of battery;

[0032] Figure 8 for Figure 7 A structural diagram from another perspective;

[0033] Figure 9 for Figure 1 An exploded view of the battery adapter system of Embodiment 1 shown;

[0034] Figure 10 for Figure 9 A structural diagram from another perspective;

[0035] Figure 11This is a schematic diagram of the battery adapter system of this utility model.

[0036] The annotations in the attached figures are explained as follows:

[0037] 10. Battery adapter system; 20. Battery; 100. Housing; 101. Circuit board; 110. First housing; 120. Second housing; 121. Anti-reverse insertion boss; 122. Slot; 200. Power tool interface; 300a. USB interface; 300b. Type-C interface; 400. Battery insertion part; 410. Reserved channel; 500. Power supply interface; 510. Positive electrode plate; 520. Negative electrode plate; 501. Circuit board connection end; 502. Battery contact end; 600. Sealing ring. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In the field of power tool and mobile device power supply, traditional battery adapter systems typically employ a fixed design, only compatible with a single brand or specific battery model. Users often need to purchase multiple adapters or carry multiple sets of batteries when using different brands of power tools, which not only increases the financial burden but also complicates equipment management. For example, on construction sites or in outdoor work, workers may simultaneously use power tools from different brands such as Makita, Bosch, or DeWalt, and existing adapters cannot quickly switch between them, leading to reduced work efficiency. Furthermore, traditional solutions lack compatibility with mobile devices, requiring users to carry additional power banks to power their phones, tablets, and other devices, further increasing the burden. To address these issues, this invention proposes an innovative battery adapter system that, through modular design and intelligent control, achieves an integrated solution for multi-brand battery compatibility, multi-device power supply, and highly reliable connectivity.

[0042] Please see Figures 1 to 8 This solution provides a battery adapter system 10, including a housing 100, wherein the housing 100 has a built-in circuit board 101. The housing 100 includes a first housing 110 and a second housing 120 that are detachably connected. The first housing 110 has a power tool interface 200 on the side facing away from the second housing 120. The power tool interface 200 is used to electrically connect to external power tool equipment, such as a laser line projector, electric drill, etc. Figure 9 The diagram illustrates that the first housing 110 also integrates a USB interface 300a and a Type-C interface 300b for electrically connecting to external electronic devices such as mobile phones and tablets. The second housing 120 is provided with a battery insertion part 400 for installing a target battery. The second housing 120 also includes a power supply interface 500, which includes spaced-apart positive electrode plates 510 and negative electrode plates 520. One end of the power supply interface 500 is electrically connected to the circuit board, and the other end passes through the battery insertion part 400 and contacts the electrodes of the target brand battery 20. The brand battery 20 can be... Figure 1 and Figure 2 The battery model shown, or Figure 3 and Figure 4 The battery model shown, or Figure 5 and Figure 6 The battery model shown, or Figure 7 and Figure 8 The battery models shown have different second housing 120 types due to the different shapes and sizes of their interfaces.

[0043] The core of this invention lies in its unique housing structure and electrical design. The system consists of a first housing 110 and a second housing 120 connected detachably. The first housing 110 has a circuit board fixedly mounted inside, and its surface integrates a power tool interface 200, a USB interface 300a, and a Type-C interface 300b. The second housing 120 is custom-designed according to the interface characteristics of the target brand of battery, including a battery plug 400 adapted to the specific battery shape and a power supply interface 500 that directly contacts the battery electrodes. When a user needs to switch battery brands, they only need to replace the corresponding second housing 120 module without modifying the first housing 110 or the entire system. For example, on a construction site, if a worker needs to switch from Makita batteries to DeWalt batteries, they only need to remove the current second housing 120 and install the DeWalt-specific second housing; the power supply interface 500 will automatically align with the DeWalt battery electrodes, ensuring stable power supply. This design significantly reduces the user's equipment investment costs while improving the flexibility of tool switching.

[0044] The battery connector 400 is designed in various forms to meet different application requirements and environmental conditions. The snap-on battery connector uses a mechanical snap-on structure to physically lock the battery in the interface, ensuring extremely high connection stability. Taking Example 1 as an example, refer to... Figures 9 to 11 The battery connector 400 of the second housing 120 is precisely shaped to match the target brand's battery profile. For example, the connector 400 for Makita batteries might be a trapezoidal groove, while for DeWalt batteries it's a rectangular snap-fit. The power supply interface 500 is made of a highly conductive material (e.g., copper alloy). One end of the positive electrode 510 and the negative electrode 520 are electrically connected to the circuit board, for example, detachably via electronic contacts. The other end passes through the reserved channel 410 of the battery connector 400 in the second housing 120, directly contacting the battery electrodes. This physical connection method avoids intermediate conversion components common in traditional adapters, such as spring contacts or adapter plates, reducing energy loss and the risk of contact failure. In outdoor emergency rescue scenarios, when rescuers use this system to power hydraulic shears, the power supply interface 500 maintains stable conductivity under high current loads, and will not experience power interruption due to poor contact, even in high-frequency plugging / unplugging or vibration environments.

[0045] Circuit board 101 acts as the "brain" of the system, monitoring battery voltage in real time and acquiring power data through power supply interface 500. When the battery voltage is detected to be lower than a preset threshold (e.g., 18V), the module immediately cuts off the output to protect the battery from over-discharge damage; when the voltage is normal, power is distributed to power tool interface 200 and USB interface 300. For example, in a home renovation scenario, the user can simultaneously use a drill (powered through the power tool interface) and charge a smartphone (powered through the USB interface), and the system dynamically adjusts the output priority according to the battery status. This intelligent allocation mechanism not only extends battery life but also improves energy utilization efficiency.

[0046] The design of the USB interface 300a and Type-C interface 300b further expands the system's application scenarios. Whether powering a laser rangefinder, a handheld light, or charging mobile devices, users can achieve this through the USB interface 300a and Type-C interface 300b integrated into the first housing 110. When camping outdoors, users can use this interface to power portable fans or camping lights without carrying additional power equipment. The power tool interface 200 adopts a standardized output terminal design, compatible with mainstream brand power sockets, ensuring plug-and-play functionality.

[0047] The technical benefits of this solution are reflected in several aspects: First, through the design of a replaceable second housing 120, users can achieve multi-brand battery compatibility at low cost, breaking free from the "one machine, one use" limitation of traditional solutions; Second, the integration of power tools with USB interface 300a and Type-C interface 300b meets the diverse power supply needs from industrial equipment to consumer electronics; These innovations make the battery adapter system 10 an ideal choice for scenarios such as construction, outdoor activities, and emergency rescue, promoting the development of power tool power supply technology towards universality and intelligence.

[0048] It should be noted that the power tool interface 200, USB interface 300a, and Type-C interface 300b can be collectively understood as output interfaces. In some embodiments, the output interface may include only at least one of the power tool interface 200, USB interface 300a, and Type-C interface 300b. For example, the output interface may include only the power tool interface 200. In this case, the battery adapter system 10 of this application is suitable for powering power tools by connecting batteries of different brands in construction sites or outdoor operations. Alternatively, the output interface may include only at least one of the USB interface 300a and Type-C interface 300b. In this case, the battery adapter system 10 of this application is suitable for charging mobile phones and tablets by connecting batteries of different brands.

[0049] In the design of the battery adapter system 10, in addition to the scheme of directly contacting the battery electrodes with the positive electrode plate 510 and the negative electrode plate 520, reliable power transmission and adaptation can also be achieved through the following alternative schemes:

[0050] A viable alternative is to use a flexible probe connection system. This system employs multiple miniature spring probes arranged inside the battery connector 400, with gold-plated tips to reduce contact resistance. When the battery is inserted, the probes, under spring pressure, form multi-point contact with the battery electrode surfaces. Even if the battery electrodes have slight oxidation or stains, the reciprocating micro-movements of the probes can clean the contact surfaces through friction. For example, for the curved electrode design of a certain brand of battery, the probe array can be arranged radially to ensure that at least three sets of probes simultaneously contact the positive and negative electrodes. This redundancy design significantly improves the fault tolerance of the connection. In high-humidity outdoor environments, the probes can be wrapped with silicone sealing rings to prevent moisture intrusion and short circuits. The advantage of this solution is its strong adaptability, capable of accommodating batteries with slight deviations in electrode position. However, the long-term compression of the spring probes may lead to fatigue fracture, requiring regular maintenance.

[0051] Another innovative solution is a magnetically coupled wireless power transmission module. This solution embeds a transmitting coil within the battery connector 400, and a receiving coil is installed at the corresponding position on the battery side, achieving contactless energy transfer through electromagnetic induction. For example, when the second housing 120 is replaced with a wireless adapter model, no physical contact is required after the battery is inserted; electrical energy is transmitted to the circuitry of the first housing 110 via high-frequency magnetic field coupling. This design completely eliminates the wear and tear problems associated with contact connections, making it particularly suitable for dusty industrial environments.

[0052] Furthermore, liquid metal contact technology offers the possibility of cutting-edge alternatives. By filling the battery connector 400 with gallium-based liquid metal (such as gallium-indium alloy), the liquid metal coats the electrode surface due to capillary action when the battery electrodes are inserted, forming an adaptive conductive path. The fluidity of the liquid metal allows it to perfectly conform to electrodes of any shape, maintaining continuous contact even when the battery is slightly tilted. For example, when adapting to batteries with irregular electrodes, the liquid metal can automatically fill the gap between the electrode and the interface, with a contact resistance as low as less than 1 milliohm.

[0053] These alternatives each have their own characteristics. Although they differ in cost, efficiency, or technological maturity, they all provide diverse solutions for adapting to multi-brand batteries, allowing for future optimization based on specific scenario requirements. (Reference) Figure 9 and Figure 10In one embodiment, the detachable connection between the first housing 110 and the second housing 120 is achieved by bolts; in other embodiments, the detachable connection can also be achieved by a snap-fit ​​or sliding rail structure. The battery insertion portion 400 of the second housing 120 has an anti-reverse insertion protrusion 121 at its edge, the height of which matches the depth of the slot 122 of the target brand battery. This design allows for blind insertion, reducing the risk of damage during battery insertion and removal.

[0054] In the design of the battery adapter system 10, the fixing method of the power supply interface 500 directly affects the reliability of the electrical connection and the service life of the system. In one embodiment, the positive electrode plate 510 and the negative electrode plate 520 are integrally fixed to the second housing 120 by injection molding. This solution achieves a high degree of unity between physical structure and electrical performance by tightly combining the metal electrode plates and the plastic housing during the manufacturing stage. Specifically, during the injection molding process, the electrode sheet is pre-positioned precisely within the mold cavity. Then, molten engineering plastic (such as high-temperature resistant nylon or reinforced polycarbonate) is injected into the mold, encasing the main body of the electrode sheet, with only two key ends exposed. One end is the circuit board connection end 501, exposed inside the second housing 120 and electrically connected to the circuit board 101. In other words, the circuit board connection end 501 of the power supply interface 500 is exposed on the side of the second housing 120 closest to the first housing 110 and electrically connected to the circuit board 101. The other end is the battery contact end 502, extending to the outside of the battery insertion portion 400 of the second housing 120. In other words, the battery contact end 502 of the power supply interface 500 extends to the side of the battery insertion portion 400 away from the first housing 110, directly contacting the inserted battery electrode. This design allows the electrode sheet and housing 100 to form a seamless integrated whole, avoiding the loosening problems that may be caused by traditional screws or clips, and eliminating the risk of electrode sheet displacement due to repeated insertion and removal. Of course, in another alternative embodiment, for ease of disassembly and replacement, at least one of the positive electrode sheet 510 and the negative electrode sheet 520 may be designed in an L-shape. The electrode sheet designed in an L-shape can be understood as an L-shaped conductive sheet. The L-shaped conductive sheet includes a vertical segment and a horizontal segment. The vertical segment is fixed to the inner wall of the second housing 120 by screws, and the horizontal segment extends through the battery plug-in portion 400 and abuts against the battery electrode.

[0055] From a technical perspective, injection molding offers multiple advantages. First, the rigid connection between the electrode sheet and the housing 100 significantly improves connection stability. For example, in high-frequency use scenarios such as construction sites, even with frequent battery insertion and removal or equipment vibration and impact, the electrode sheet maintains tight contact with the battery electrodes, and the contact resistance can be stably controlled within 5 milliohms. Second, the injection molding material encapsulates the electrode sheet, forming a natural insulating protective layer that effectively prevents short-circuit risks caused by metal exposure. It also enhances the electrode sheet's corrosion resistance, allowing it to maintain long-term performance in humid or dusty environments. Furthermore, this process simplifies the assembly process. The one-time molding of the electrode sheet and housing 100 reduces the positioning and fixing processes required in traditional assembly, lowering manufacturing costs by approximately 30%. Taking the second housing adapted for Makita batteries as an example, the injection-molded electrode sheet 100 has no gaps at the junction with the housing. When the battery is inserted, the contact area between the contact end and the electrode increases by 40%, significantly reducing contact point heating. In a 20A continuous load test, the temperature rise is 15°C lower than that of traditional spring contact designs, greatly improving safety under high-load conditions. This design not only solves the compatibility problem in multi-brand battery adaptation, but also provides users with a reliable "plug and play" experience, without worrying about power outages caused by loose structure.

[0056] In one embodiment, a sealing ring 600 is provided at the connection surface between the first housing 110 and the second housing 120. The sealing ring 600 has a U-shaped or Y-shaped cross-section, meaning that in a plane projection perpendicular to the arrangement direction of the first housing 110 and the second housing 120, the sealing ring 600 is U-shaped or Y-shaped. The design of the sealing ring 600 prevents dust or liquid from entering the interior of the housing 100. The elastic structure of the sealing ring 600 can adapt to different thicknesses of the second housing 120, ensuring a tight fit between the connection surfaces.

[0057] In one embodiment, reference Figure 11The circuit board 101 includes a voltage detection unit and a voltage distribution unit. The voltage detection unit acquires the battery voltage in real time through the power supply interface 500 and compares it with a preset threshold. The voltage distribution unit controls the on / off state of the output interface based on the comparison result. The voltage detection unit and the voltage distribution unit in the circuit board 101 constitute the intelligent control core of the system. Their collaborative work enables precise management of the battery status and efficient distribution of electrical energy. The voltage detection unit acquires the battery voltage signal in real time through the power supply interface 500 and dynamically compares it with a preset threshold (e.g., 18V or 36V). When the battery voltage is higher than the threshold, the voltage distribution unit immediately activates the power supply state of the output interface, allowing stable power output to the connected device; conversely, if the voltage is detected to be lower than the threshold, the voltage distribution unit will quickly cut off all output circuits to prevent the battery from being damaged due to over-discharge. For example, during outdoor operations, when a user uses a power drill (powered via the power tool interface 200), the voltage detection unit continuously monitors the battery status. If the voltage drops to 17.5V (below the preset 18V threshold) due to a sudden load increase, the system will cut off the power supply to the drill within milliseconds, while simultaneously maintaining mobile phone charging via the USB interface 300a and Type-C interface 300b (if the remaining battery power is still higher than the minimum requirements for USB or Type-C output). This tiered protection mechanism not only extends battery life but also ensures the continuous operation of critical equipment. From a technical perspective, this design significantly improves system safety and energy efficiency. The high-precision sampling circuit of the voltage detection unit can capture minute fluctuations in battery voltage. Combined with the rapid response capability of the voltage distribution unit, it effectively prevents equipment downtime or battery damage caused by sudden voltage drops in traditional solutions. Furthermore, the intelligent power distribution logic allows the system to prioritize low-power devices (such as the 5V output of the USB interface) when the battery power is low, while temporarily disabling high-power devices (such as 36V power tools). This strategy improves the utilization rate of remaining battery energy by approximately 25%. Taking emergency rescue scenarios as an example, when the hydraulic shears are forcibly powered off due to insufficient battery power, the system can still supply power to walkie-talkies or lighting equipment via USB interface 300a or Type-C interface 300b, ensuring the continuity of rescue operations. This dynamic management scheme based on real-time voltage determination not only protects battery health but also expands the functionality of equipment in critical states, demonstrating the core value of intelligent power supply systems.

[0058] Furthermore, in some embodiments, the battery adapter system 10 also includes a reminder device, which is a visual prompting module (e.g., a...). Figure 11The reminder device is electrically connected to a voltage detection unit and a voltage distribution unit, wherein at least one of the following is provided: an LED indicator light (shown as shown) or an auditory prompt module (e.g., a buzzer); when the voltage detection unit detects that the voltage is below a threshold, the voltage distribution unit cuts off the output and triggers the warning state of the reminder device; when the voltage is above the threshold, the voltage distribution unit activates the normal state of the reminder device. Figure 11 Taking the LED light shown as an example, when the voltage detection unit detects that the voltage is lower than the threshold, the LED light emits red light, and when the voltage is higher than the threshold, the LED light emits green light.

[0059] The inner wall of the second housing 120 is equipped with an identification code. The circuit board 101 includes a photoelectric sensor corresponding to the identification code. The photoelectric sensor is used to read the type of the second housing 120 and automatically match the output voltage parameters. In the design of setting the identification code on the inner wall of the second housing 120 and realizing automatic voltage matching through the photoelectric sensor, the system solves the cumbersome problem of manually configuring the voltage in multi-brand battery adaptation by combining physical marking and optical recognition. The identification code adopts the form of concave-convex texture or reflective patch. For example, the identification code of the Makita battery-specific second housing is three sets of horizontal grooves, while the DeWalt battery second housing is a diamond-shaped bump array. When the user replaces the second housing 120, the photoelectric sensor (such as an infrared photodiode) emits a beam of light and receives the reflected signal. By analyzing the change in the intensity of the reflected light or the pattern features, the type of the second housing 120 is accurately identified. The recognition algorithm built into the circuit board 101 matches the read features with a pre-stored encoding library. For example, when the groove spacing is detected to be 2mm, it corresponds to 18V output, and when the groove spacing is 4mm, it corresponds to 36V output. This process is completed within 200ms, and the user is unaware of the switch. The technical advantages of this solution are reflected in three aspects: First, automated voltage adaptation avoids human error. For example, on construction sites, after a worker replaces the second housing 120, the system automatically switches to the correct voltage without requiring manual adjustment of the switch, reducing the risk of equipment damage due to incorrect voltage settings. Second, the physical characteristics of the identification code (such as its texture) provide high anti-interference capabilities. Even when the surface of the second housing 120 is dusty or slightly scratched, the photoelectric sensor can still accurately identify it through feature extraction algorithms. Third, the system has strong scalability. When adding a new battery brand, only a unique identification code needs to be added to the inner wall of the second housing 120 and the coding library updated; no hardware modifications are required. For example, when adding a second housing 120 for a new 24V battery, only a corresponding wavy groove needs to be designed and the code entered, and the system will automatically support it. This design significantly reduces the development and maintenance costs of multi-brand compatible solutions while providing users with a seamless switching experience.

[0060] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A battery adapter system, characterized in that, include: The housing includes a first housing and a second housing that are detachably connected; The circuit board is fixedly disposed inside the first housing. An output interface, integrated into the first housing, is used for electrical connection to external electrical equipment; The second housing includes: Battery connector for installing the target battery; The power supply interface has one end electrically connected to the circuit board, and the other end passes through the battery connector and contacts the electrode of the target battery.

2. The battery adapter system according to claim 1, characterized in that, The output interface includes a power tool interface for electrically connecting external power tools.

3. The battery adapter system according to claim 1 or 2, characterized in that, The output interfaces include a USB interface and / or a Type-C interface for electrically connecting to external electronic devices.

4. The battery adapter system according to claim 1, characterized in that, The circuit board integrates a voltage detection unit and a voltage distribution unit; the voltage detection unit acquires the battery voltage in real time through the power supply interface and compares it with a preset threshold; the voltage distribution unit controls the on / off state of the output interface based on the comparison result.

5. The battery adapter system according to claim 4, characterized in that, The battery transfer system also includes a reminder device, which includes at least one of a visual prompting module and an auditory prompting module, and the reminder device is electrically connected to the voltage detection unit and the voltage distribution unit. When the voltage detection unit detects that the voltage is lower than the threshold, the voltage distribution unit cuts off the output and triggers the warning state of the reminder device; when the voltage is higher than the threshold, the voltage distribution unit activates the normal state of the reminder device.

6. The battery adapter system according to claim 1, characterized in that, The power supply interface includes positive electrode plates and negative electrode plates arranged at intervals.

7. The battery adapter system according to claim 6, characterized in that, The positive electrode and the negative electrode are integrally fixed to the second housing by injection molding; the circuit board connection end of the power supply interface is exposed on the side of the second housing close to the first housing, and the battery contact end of the power supply interface extends to the side of the battery plug-in portion away from the first housing.

8. The battery adapter system according to claim 6, characterized in that, The positive electrode sheet and / or the negative electrode sheet are L-shaped. The L-shaped positive electrode sheet and / or the L-shaped negative electrode sheet are defined as L-shaped conductive sheets. The L-shaped conductive sheet includes a vertical section and a horizontal section. The vertical section is fixed to the side of the second housing near the first housing by screws. The horizontal section extends through the battery connector and abuts against the battery electrode.

9. The battery adapter system according to claim 1, characterized in that, The inner wall of the second housing is provided with an identification code, and the circuit board includes a photoelectric sensor corresponding to the identification code. The photoelectric sensor is used to read the type of the second housing and automatically match the output voltage parameters.

10. The battery adapter system according to claim 1, characterized in that, The connection surface between the first housing and the second housing is provided with a sealing ring. In the plane projection perpendicular to the arrangement direction of the first housing and the second housing, the sealing ring is U-shaped or Y-shaped.

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