Battery pack charging seat

Abstract

The utility model provides a battery pack charging seat which comprises a seat body, the seat body is provided with a first interface, a second interface, a charging groove for a battery pack to be inserted and an electric energy management and conversion assembly integrated in the seat body, the first interface is arranged on the surface of the seat body, electrically connected with the electric energy management and conversion assembly and used for being connected with an external alternating current power supply, and the second interface is arranged on the surface of the seat body. And the second interface is arranged on the surface of the seat body, is electrically connected with the electric energy management and conversion assembly, and is used for being connected with external equipment and charging the external equipment. According to the battery pack charging base, the electric energy management and conversion assembly is integrated, the first socket and the second socket are arranged, the battery pack can be charged, the battery pack charging base can serve as a mobile power source to charge external equipment, the diversified charging requirements of users are met, and the practicability of the battery pack charging base is improved.

Description

Technical Field

[0001] This disclosure relates to the field of charging dock technology, and more particularly to a battery pack charging dock. Background Technology

[0002] Traditional battery pack chargers have relatively limited functionality, typically only capable of charging battery packs, failing to meet the diverse charging needs of users in different scenarios. Furthermore, limitations imposed by the semiconductor materials, temperature rise, power output, and operating frequency of the components used in traditional battery pack chargers make it difficult to achieve small-size packaging, resulting in numerous inconveniences during transportation, carrying, and storage. Moreover, most traditional battery pack chargers lack Power Delivery (PD) fast charging capabilities, resulting in lower charging efficiency and failing to meet users' urgent demand for rapid charging. With the widespread use of electronic devices, users have placed higher demands on the functional integration, portability, and charging speed of charging equipment, rendering existing charging devices inadequate to meet market needs. Utility Model Content

[0003] This disclosure provides a battery pack charging stand to at least solve the above-mentioned technical problems existing in the prior art.

[0004] According to the present disclosure, a battery pack charging stand includes a base body, the base body being provided with a first interface, a second interface, a charging slot for inserting a battery pack, and a power management and conversion component integrated inside the base body. The first interface is disposed on the surface of the base body and electrically connected to the power management and conversion component, and is used to connect to an external AC power source. The second interface is disposed on the surface of the base body and electrically connected to the power management and conversion component, and is used to connect to an external device and charge the external device.

[0005] In one embodiment, the first interface has a countersunk hole structure and is provided with an electrical connection terminal, which is electrically connected to the power management and conversion component for insertion into an external power port.

[0006] In one embodiment, the first interface includes a plug inserted into the base, the plug being electrically connected to the power management and conversion component for insertion into an external power socket.

[0007] In one embodiment, the first interface is rotatably connected to the base body. The first interface has a retracted state and an active state. When the first interface is in the retracted state, the insert is housed within the base body. When the first interface is in the active state, the insert protrudes relative to the base body.

[0008] In one embodiment, the first interface is slidably connected to the base body, and the first interface has a first position and a second position in the sliding direction. When the first interface is in the first position, the insert is housed in the base body; when the first interface is in the second position, the insert protrudes relative to the base body.

[0009] In one embodiment, the base is square.

[0010] In one embodiment, the power management and conversion component includes at least a first power conversion module, a second power conversion module, and a power transfer PD protocol control module that are interconnected. The first power conversion module is used to convert AC power into DC power, the second power conversion module is used to adjust the voltage and current of the DC power, and the PD protocol control module is used to realize fast charging communication and power transfer with the external device. The first power conversion module, the second power conversion module, and the PD protocol control module are configured to be controlled by a microcontroller.

[0011] In one embodiment, the power management and conversion component further includes: the first power conversion module includes an electromagnetic interference suppression circuit, a first rectifier filter circuit, and a flyback PWM control chip; the electromagnetic interference suppression circuit is connected to the first interface; the first rectifier filter circuit is connected after the electromagnetic interference suppression circuit and is used to convert AC power to DC power; the flyback PWM control chip is connected to the first rectifier filter circuit and is used to control the power conversion process.

[0012] In one embodiment, the second power conversion module includes a battery pack charging control element, a PD discharge control element, and a second rectifier and filter circuit. The second rectifier and filter circuit is connected between the first rectifier and filter circuit and the charging tank, and is used to rectify and filter the converted DC power again.

[0013] In one embodiment, the second power conversion module further includes a battery pack communication identification circuit, a voltage detection circuit, and a current detection circuit. The battery pack communication identification circuit is used to identify the type and status of the battery pack. The voltage detection circuit and the current detection circuit are used to detect the voltage and current during the charging process, respectively, and feed the detection signals back to the microcontroller.

[0014] In this disclosure, the battery pack charging stand integrates a power management and conversion component and is equipped with a first interface and a second interface. It can both charge the battery pack and serve as a power bank to charge external devices, meeting the diverse charging needs of users and improving the practicality and compatibility of the battery pack charging stand. In addition, since the power management and conversion component is integrated inside the stand, the size of the stand is greatly reduced, making it easy to carry and store.

[0015] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0016] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0017] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the overall structure of a battery pack charging dock, an exemplary embodiment of this disclosure, is shown. Figure 1 ;

[0019] Figure 2 A schematic diagram of the charging slot of a battery pack charging dock according to an exemplary embodiment of the present disclosure is shown;

[0020] Figure 3 A schematic diagram of the overall structure of a battery pack charging dock, an exemplary embodiment of this disclosure, is shown. Figure 2 ;

[0021] Figure 4 A schematic diagram of the overall structure of a battery pack charging dock, an exemplary embodiment of this disclosure, is shown. Figure 3 (The first interface is in working condition);

[0022] Figure 5 A schematic diagram of the overall structure of a battery pack charging dock, an exemplary embodiment of this disclosure, is shown. Figure 3 (The first interface is in a retracted state);

[0023] Figure 6 A schematic diagram of the overall structure of a battery pack charging dock (with the first interface located at the first position) is shown as an exemplary embodiment of the present disclosure.

[0024] Figure 7 A schematic diagram of the overall structure of a battery pack charging dock, an exemplary embodiment of this disclosure, is shown. Figure 4 ;

[0025] Figure 8 This illustration shows an overall structural diagram of a battery pack charging dock and a battery pack adapter, according to an exemplary embodiment of this disclosure.

[0026] Figure 9 A circuit diagram of a power management and conversion component for a battery pack charging dock, an exemplary embodiment of the present disclosure, is shown.

[0027] The following are the labels in the diagram: 1. Base; 2. Battery pack; 11. First interface; 12. Second interface; 13. Charging slot; 14. Power management and conversion component; 111. Electrical connection terminal; 112. Insert; 113. Push indicator; 131. Limiting part; 132. Sliding channel; 133. Electrode plate. Detailed Implementation

[0028] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0029] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1 , Figure 2 and Figure 8 As shown, an exemplary embodiment of the present disclosure provides a battery pack charging stand, including a stand body 1. The stand body 1 is provided with a first interface 11, a second interface 12, a charging slot 13 for inserting a battery pack 2, and a power management and conversion component 14 integrated inside the stand body 1. The first interface 11 is disposed on the surface of the stand body 1 and electrically connected to the power management and conversion component 14 for connecting to an external AC power source. The second interface 12 is disposed on the surface of the stand body 1 and electrically connected to the power management and conversion component 14 for connecting to an external device to charge the external device.

[0031] In this embodiment, the base 1 serves as the physical carrier of the entire battery pack charging base, providing installation and support for other components. Both the first interface 11 and the second interface 12 are standard interface types. The first interface 11 is used to connect to an external AC power source, introducing external AC power into the charging base. Its design position and specifications fully consider ease of use and universality, allowing users to connect various common AC power plugs. The second interface 12 can be, but is not limited to, a TYPE-C interface or a USB interface, for connecting external devices such as mobile phones or tablets. The shape and size of the charging slot 13 are designed according to the specifications of common battery packs 2, ensuring that the battery pack 2 can be tightly inserted and achieve a good electrical connection. Limiting portions 131 are provided on opposite side walls of the charging slot 13, forming a sliding channel 132 between the two limiting portions 131 and the bottom surface of the charging slot 13. By providing the limiting portions 131, the battery pack 2 inserted into the charging slot 13 can be accurately positioned and guided, adapting to the shape of the battery pack 2. The limiting part 131 and the bottom surface of the charging slot 13 form a sliding channel 132, which facilitates the insertion and removal of the battery pack 2. This not only improves the ease of operation for users but also effectively prevents poor charging contact caused by improper insertion of the battery pack 2, ensuring the stability and reliability of charging. The charging slot 13 is equipped with electrode plates 133 that interlock with the battery pack 2. The electrode plates 133 are usually made of a highly conductive metal material, such as copper alloy. The surface of the electrode plates 133 may also undergo special electroplating treatment, such as nickel plating or gold plating, which can not only further reduce contact resistance and improve conductivity but also enhance the oxidation and corrosion resistance of the electrode plates 133, ensuring stable and reliable power transmission during long-term use. Electrode plates 133 are fixed to the circuit board inside the base 1 by welding or pressing, establishing a stable electrical connection with the power management and conversion component 14. This ensures that when the battery pack 2 is inserted into the charging slot 13, the electrode plates 133 are in close contact with the electrode interface of the battery pack 2, allowing the processed electrical energy from the power management and conversion component 14 to be smoothly transmitted to the battery pack 2, thus enabling the charging operation. The power management and conversion component 14, integrated inside the base 1, is the core component of the entire charging base. It is responsible for processing the AC power input from the first interface 11, converting it into DC power suitable for charging the battery pack 2 and DC power suitable for charging external devices such as mobile phones or tablets connected to the second interface 12. It also manages and allocates the electrical energy stored in the battery pack 2 or the converted electrical energy, charging external devices through the second interface 12. In actual use, if charging the battery pack 2 is required, it is inserted into the charging slot 13, at which point the power management and conversion component 14 begins to charge the battery pack 2. When an external device is connected to the second port, it is charged by an external AC power source connected to the first interface 11, or the battery pack is used as a power source to charge the external device.

[0032] In summary, the battery pack charging stand disclosed herein, by integrating the power management and conversion component 14 and providing the first interface 11 and the second interface 12, can both charge the battery pack 2 and serve as a power source to charge external devices, thus meeting the diverse charging needs of users and improving the practicality and compatibility of the battery pack charging stand. In addition, since the power management and conversion component 14 is integrated inside the stand body 1, the volume of the stand body 1 is greatly reduced, making it easy to carry and store.

[0033] Reference Figure 1 As shown, in one possible embodiment, the first interface 11 has a countersunk hole structure and is provided with an electrical connection terminal 111. The electrical connection terminal 111 is electrically connected to the power management and conversion component 14 for external power port insertion.

[0034] In this embodiment, the first interface 11 has a countersunk hole structure, which better protects the internal electrical connection components. The recessed design of the countersunk hole reduces the chance of dust and debris directly contacting the electrical connection terminal 111, lowering the risk of poor contact due to impurities and improving the interface's dustproof and debris-proof performance. The first interface 11 is provided with electrical connection terminals 111, which are electrically connected to the power management and conversion component 14. These terminals are typically made of highly conductive and corrosion-resistant metal materials, such as copper alloys, to ensure stable current transmission. An external power port can be inserted into the first interface 11, making close contact with the electrical connection terminal 111 to achieve power transmission. The countersunk hole structure provides precise positioning and good support for the insertion of the external power port, making the connection more secure and reducing the possibility of interface loosening during use.

[0035] Reference Figure 3 As shown, in one possible embodiment, the first interface 11 includes a plug 112 inserted into the base 1. The plug 112 is electrically connected to the power management and conversion component 14 and is used to insert into an external power socket.

[0036] In this embodiment, the first interface 11 adopts a plug-in 112 design. The plug-in 112 is directly inserted into the socket 1 and electrically connected to the power management and conversion component 14. The plug-in 112 is typically made of a metal material with excellent conductivity and high mechanical strength, such as copper alloy, to ensure minimal current loss during transmission and guarantee charging efficiency. High mechanical strength also prevents deformation of the plug-in 112 during frequent insertion and removal, extending its service life. The shape and size of the plug-in 112 are designed according to common external power socket specifications to ensure compatibility with most standard sockets. For example, in common household power socket environments, the width, thickness, and spacing of the plug-in 112 are strictly designed according to relevant national standards to ensure smooth insertion and tight contact. The connection between the plug-in 112 and the socket 1 employs a reliable fixing process, such as welding or riveting, to ensure a firm connection between the plug-in 112 and the socket 1, preventing the plug-in 112 from loosening or falling off during use. It is understandable that the number of inserts 112 can be two or three, which will not be elaborated on here.

[0037] Reference Figure 4 and Figure 5 As shown, in one possible embodiment, the first interface 11 is rotatably connected to the base 1. The first interface 11 has a retracted state and a working state. When the first interface 11 is in the retracted state, the insert 112 is stored inside the base 1. When the first interface 11 is in the working state, the insert 112 protrudes relative to the base 1.

[0038] In this embodiment, a rotating shaft and a limiting device can be provided between the first interface 11 and the base 1, allowing the first interface 11 to rotate around the rotating shaft. When rotated to a specific position, the insert 112 can be completely retracted into the space reserved inside the base 1. This retracted design effectively prevents the insert 112 from being exposed when not in use, reducing the risk of collision damage and also reducing the possibility of accidental plug contact causing safety accidents. In addition, the retracted charging base is more organized, making it easier to carry and store, and reducing space occupation. When the charging base needs to be used, the first interface 11 is rotated to the working state. At this time, the insert 112 protrudes relative to the base 1, allowing for easy insertion into an external power socket. During rotation, the rotating shaft and limiting device again function to ensure that the first interface 11 can accurately rotate to the appropriate working position and remain stable during use, preventing arbitrary rotation.

[0039] Reference Figure 3 , Figure 6 and Figure 7As shown, in one possible embodiment, the first interface 11 is slidably connected to the base 1. The first interface 11 has a first position and a second position in the sliding direction. When the first interface 11 is in the first position, the insert 112 is housed in the base 1. When the first interface 11 is in the second position, the insert 112 protrudes relative to the base 1.

[0040] In this embodiment, the base 1 and the first interface 11 are connected by a combination of a slide rail and a slider. The slide rail is mounted on the base 1, and the first interface 11 is fixed on the slider. The two cooperate with each other, allowing the first interface 11 to slide smoothly along the slide rail. (Refer to...) Figure 3 As shown, when the first interface 11 slides to the second position, the insert 112 protrudes relative to the base 1; see reference Figure 6 As shown, when the first interface 11 is not needed, the slider can be pressed along the slide rail to retract the first interface 11 to the first position. To ensure that the insert 112 can be stably connected to the external power socket in the second position, a limiting device can be provided on the slide rail. When the first interface 11 slides to the second position, the limiting device will lock the slider to prevent the first interface 11 from continuing to slide or accidentally retracting. It is understood that, referring to... Figure 7 As shown, the first interface 11 can also be connected to the upper surface of the base 1, and a push mark 113 can be provided on the upper surface of the first interface 11. When the first interface 11 needs to be stored, press the push mark 113 and apply force along the slide rail to push the first interface 11 to retract to the first position; when the first interface 11 needs to be used, press the push mark 113 and apply force outward along the slide rail to move the first interface 11 to the second position.

[0041] In one possible implementation, the base 1 is square.

[0042] In this embodiment, compared to other complex irregular structures, the square base 1 has simpler mold design and manufacturing, and lower cost. The internal space of the square base 1 is easier to plan, facilitating wiring and connection, which helps improve the stability and reliability of the internal circuitry. When placed in limited spaces such as desktops or toolboxes, the square base 1 can be arranged compactly, avoiding space waste caused by irregular shapes.

[0043] Reference Figure 9 As shown, in one embodiment, the power management and conversion component 14 includes at least a first power conversion module, a second power conversion module, and a power transmission PD protocol control module that are interconnected. The first power conversion module is used to convert AC power into DC power, the second power conversion module is used to adjust the voltage and current of the DC power, and the PD protocol control module is used to realize fast charging communication and power transmission with external devices. The first power conversion module, the second power conversion module, and the PD protocol control module are configured to be controlled by a microcontroller.

[0044] In this embodiment, the main function of the first power conversion module is to convert the AC power input from the first interface 11 into DC power. It typically includes electromagnetic interference suppression circuits and rectifier / filter circuits. The main function of the second power conversion module is to adjust the voltage and current of the DC power output from the first power conversion module. The PD protocol control module, through its built-in BUCK driver SOC chip, enables fast charging communication and power transfer with external devices. When an external device is connected to the charging dock via the second interface 12, the PD protocol control module communicates with the external device, identifies the supported fast charging protocol version and charging power requirements, and transmits this information to the microcontroller. The microcontroller, as the control core of the entire power management and conversion component 14, receives information from various modules. Based on this information, the microcontroller precisely controls the first power conversion module, the second power conversion module, and the power transfer PD protocol control module according to preset programs and algorithms, coordinating the work between the modules to ensure that the charging dock can provide appropriate charging parameters according to the actual needs of the battery pack 2 and the external device, thus achieving intelligent charging management. During the design process, simply install these three modules on the same circuit board and route them appropriately to ensure they work together effectively.

[0045] In one embodiment, the first power conversion module includes an electromagnetic interference suppression circuit, a first rectifier and filter circuit, and a flyback PWM control chip. The electromagnetic interference suppression circuit is connected to the first interface 11, the first rectifier and filter circuit is connected after the electromagnetic interference suppression circuit, and is used to convert AC power to DC power. The flyback PWM control chip is connected to the first rectifier and filter circuit and is used to control the power conversion process.

[0046] In this embodiment, an electromagnetic interference suppression circuit, or EMI circuit for short, is connected to the first interface 11, which is used to connect to an external AC power supply. When external AC power is input, electromagnetic interference is inevitably generated. This interference may affect the normal operation of other circuits inside the charging dock, and may even interfere with surrounding electronic devices. The function of the EMI circuit is to suppress and filter this interference, ensuring that the power signal entering the subsequent circuits is pure and stable. It is usually composed of components such as inductors and capacitors, and through reasonable circuit layout and parameter design, it can effectively attenuate electromagnetic interference signals of different frequencies. The output of the EMI circuit is connected to the first rectifier and filter circuit. The main function of the first rectifier and filter circuit is to convert the AC power after electromagnetic interference suppression into DC power, and to filter the DC power to make it smoother and more stable. The rectification section generally uses a diode rectifier bridge to convert AC power into pulsating DC power; the filtering section uses components such as capacitors and inductors to smooth the pulsating DC power, remove the ripple component, and provide a stable DC power supply for the subsequent charging module. The flyback PWM control chip is connected to the first rectifier and filter circuit. As the core component controlling the power conversion process, the flyback PWM control chip generates pulse width modulation signals to control the on and off times of the power switches in the first rectifier and filter circuit, thereby precisely adjusting the power conversion output and voltage. Under different charging requirements, such as charging battery packs 2 of different capacities or powering external devices with different power demands, the flyback PWM control chip can dynamically adjust the parameters of the PWM signal according to the microcontroller's instructions and feedback signals in the circuit, achieving efficient and precise power conversion control.

[0047] In one embodiment, the second power conversion module includes a battery pack charging control element, a PD discharge control element, and a second rectifier and filter circuit. The second rectifier and filter circuit is connected between the first rectifier and filter circuit and the charging tank 13, and is used to rectify and filter the converted DC power again.

[0048] In this embodiment, the battery pack charging control element, abbreviated as battery pack charging MOS, is responsible for precisely controlling the charging process of battery pack 2. It adjusts the charging current and voltage based on information such as the type and state of charge of battery pack 2, ensuring that battery pack 2 is charged within a safe range and avoiding overcharging or over-discharging. For example, when battery pack 2 has a low charge, the battery pack charging MOS controls the charging module to charge quickly with a larger current; when battery pack 2 is close to full charge, it automatically reduces the charging current to trickle charge, protecting the performance and lifespan of battery pack 2. The PD discharge control element, abbreviated as PD discharge MOS, uses the second interface 12 to connect to external devices such as mobile phones and tablets. The PD discharge MOS manages the PD protocol charging process for external devices through the second interface 12. It can identify the charging needs of external devices and provide appropriate voltage and current according to the device's requirements, achieving fast and safe charging. For example, when connecting a mobile phone that supports PD fast charging, the PD discharge MOS communicates with the mobile phone to negotiate and provide appropriate fast charging voltage and current.

[0049] In one embodiment, the second power conversion module further includes a battery pack communication identification circuit, a voltage detection circuit, and a current detection circuit. The battery pack communication identification circuit is used to identify the type and status of the battery pack. The voltage detection circuit and the current detection circuit are used to detect the voltage and current during the charging process, respectively, and feed the detection signals back to the microcontroller.

[0050] In this embodiment, the battery pack communication identification circuit, voltage detection circuit, and current detection circuit are all connected to the microcontroller, transmitting their respective detected signals to the microcontroller. Based on this information, the microcontroller precisely controls the battery pack charging MOS and PD discharging MOS, achieving intelligent management of the charging process. Furthermore, buttons and a charging indicator light are connected to the microcontroller. Users can operate the device via the buttons, while the charging indicator light displays the charging dock's operating status. Status information during the charging process is processed by the microcontroller and then displayed via the buttons and the charging indicator light.

[0051] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0052] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," and "above" are used herein to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatial relative terms include not only the orientation of the component as depicted in the figures but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in sequences other than those illustrated or described herein.

[0055] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended claims and their equivalents.

Claims

1. A battery pack charging cradle, comprising: The device includes a base (1), which is provided with a first interface (11), a second interface (12), a charging slot (13) for inserting a battery pack (2), and a power management and conversion component (14) integrated inside the base (1). The first interface (11) is disposed on the surface of the base (1) and electrically connected to the power management and conversion component (14) for connecting to an external AC power source. The second interface (12) is disposed on the surface of the base (1) and electrically connected to the power management and conversion component (14) for connecting to an external device and charging the external device.

2. The battery pack charging cradle of claim 1, wherein, The first interface (11) has a countersunk hole structure and is provided with an electrical connection terminal (111). The electrical connection terminal (111) is electrically connected to the power management and conversion component (14) for external power port insertion.

3. The battery pack charging cradle of claim 1, wherein, The first interface (11) includes a plug (112) inserted into the base (1), the plug being electrically connected to the power management and conversion component (14) for inserting into an external power socket.

4. The battery pack charging cradle of claim 3, wherein, The first interface (11) is rotatably connected to the base (1). The first interface (11) has a retracted state and a working state. When the first interface (11) is in the retracted state, the insert (112) is stored in the base (1). When the first interface (11) is in the working state, the insert (112) protrudes from the base (1).

5. The battery pack charging cradle of claim 3, wherein, The first interface (11) is slidably connected to the base (1). The first interface (11) has a first position and a second position in the sliding direction. When the first interface (11) is in the first position, the insert (112) is housed in the base (1). When the first interface (11) is in the second position, the insert (112) protrudes relative to the base (1).

6. The battery pack charging stand according to any one of claims 1-5, characterized in that, The base (1) is square.

7. The battery pack charging stand according to claim 1, characterized in that, The power management and conversion component (14) includes at least a first power conversion module, a second power conversion module, and a power transmission PD protocol control module that are interconnected. The first power conversion module is used to convert AC power into DC power, the second power conversion module is used to adjust the voltage and current of the DC power, and the PD protocol control module is used to realize fast charging communication and power transmission with the external device. The first power conversion module, the second power conversion module, and the PD protocol control module are configured to be controlled by a microcontroller.

8. The battery pack charging stand according to claim 7, characterized in that, The first power conversion module includes an electromagnetic interference suppression circuit, a first rectifier filter circuit, and a flyback PWM control chip. The electromagnetic interference suppression circuit is connected to the first interface (11). The first rectifier filter circuit is connected after the electromagnetic interference suppression circuit and is used to convert AC power to DC power. The flyback PWM control chip is connected to the first rectifier filter circuit and is used to control the power conversion process.

9. The battery pack charging stand according to claim 8, characterized in that, The second power conversion module includes a battery pack charging control element, a PD discharge control element, and a second rectifier and filter circuit. The second rectifier and filter circuit is connected between the first rectifier and filter circuit and the charging tank (13) and is used to rectify and filter the converted DC power again.

10. The battery pack charging cradle of claim 8, wherein, The second power conversion module also includes a battery pack communication identification circuit, a voltage detection circuit and a current detection circuit. The battery pack communication identification circuit is used to identify the type and status of the battery pack (2). The voltage detection circuit and the current detection circuit are used to detect the voltage and current during the charging process and feed the detection signals back to the microcontroller.

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