Charging device

Abstract

The embodiment of the utility model provides a charging device. The charging device comprises a first charging module which is provided with a third output interface; the second charging module is detachably and electrically connected to the first charging module, the second charging module has a quick charging function, and the second charging module is provided with a second output interface; and when the first charging module is electrically connected with the second charging module, the third output interface and the second output interface are used for quickly charging an external device. According to the charging device disclosed by the embodiment of the invention, different requirements of a user on charging of the electronic equipment are met, the user can select a proper charging module according to actual conditions, the size and occupied space of the charging equipment are reduced, and the experience feeling of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment accessories, in particular to a charging device. Background Art

[0002] With the improvement of information demand and people's living standards, people's demand for electronic products is increasing. Correspondingly, people's demand for the power of these electronic products is also increasing. Usually, these electronic products will be connected to the power adapter when charging to protect the input stable voltage and current. The existing desktop charging station can provide multiple charging interfaces to power multiple devices. In order to provide a fast charging function, a fast charging module needs to be set up inside, which often increases the size of the desktop charging station, is inconvenient to carry, occupies space, and has a high manufacturing cost. There is also a portable fast charging power adapter in the prior art. Although the portable fast charging power adapter is small in size, easy to carry and has a low manufacturing cost, it cannot meet the multiple interfaces for charging multiple electronic devices, which brings inconvenience to users. From this point of view, the existing desktop charging station or fast charging power adapter has some limitations in use, which causes a poor experience for users. How to make the charging device meet the user's multi-scenario usage needs is a problem that needs to be solved at present. Utility Model Content

[0003] Therefore, in order to overcome at least some of the defects and shortcomings in the prior art, an embodiment of the utility model provides a charging device that meets the different needs of users for charging electronic devices. Users can choose a suitable charging module according to actual conditions, which reduces the size and occupied space of the charging device and improves the user experience.

[0004] Specifically, the charging device provided by the embodiment of the utility model includes: a first charging module, the first charging module is provided with a power plug; a second charging module, which is detachably electrically connected to the first charging module, the second charging module has a fast charging module, and the second charging module is provided with a second output interface; when the first charging module is electrically connected to the second charging module, the second output interface is used to quickly charge the external device.

[0005] In a specific embodiment of the utility model, it also includes: a connecting structure, including: a first shell and a second shell, the first shell is arranged on the first charging module, the second shell is arranged on the second charging module, the second shell and the first shell are arranged correspondingly, and the second charging module is detachably connected to the first charging module through the second shell and the first shell.

[0006] In a specific embodiment of the utility model, it also includes: a conductive connector, which is arranged in the first shell portion, and the first shell portion is provided with a connecting through hole connected to the conductive connector, and the conductive connector is electrically connected to the first charging module; the second charging module is provided with a power pin, when the first shell portion and the second shell portion are connected, the power pin passes through the connecting through hole and is electrically connected to the conductive connector.

[0007] In a specific embodiment of the present invention, the conductive connector is a U-shaped structure, the two free ends of the U-shaped structure correspond to the connecting through holes, a limiting portion is formed between the two opposite sides of the U-shaped structure, and the power pin is arranged in the limiting portion.

[0008] In a specific embodiment of the present invention, the first charging module is provided with a third output interface; a conversion circuit is provided in the second charging module, and when the first charging module is electrically connected to the second charging module, the third output interface is electrically connected to the fast charging module through the conversion circuit.

[0009] In a specific embodiment of the present invention, the first shell portion has a first side surface connected to the first charging module and a second side surface arranged opposite to the first side surface, the connecting through hole is opened on the first side surface, and the power pin slides through the connecting through hole along the first side surface toward the second side surface to be accommodated in the first shell portion and electrically connected to the conductive connecting member.

[0010] In a specific embodiment of the present invention, the first shell portion has a first side surface and a third side surface connected to the first charging module and a fourth side surface arranged opposite to the third side surface, and the third side surface is connected to the first side surface, the connecting through hole is opened on the third side surface, and the power pin slides through the connecting through hole along the third side surface toward the fourth side surface to be accommodated in the first shell portion and electrically connected to the conductive connecting member.

[0011] In a specific embodiment of the present invention, the second charging module includes a main shell portion connected to the second shell portion, the main shell portion is provided with a pin accommodating portion, the power pin is rotatably connected to the main shell portion, and the power pin has a closed state relative to the main shell portion. When the power pin is in the closed state, the power pin is accommodated in the pin accommodating portion.

[0012] In a specific embodiment of the present invention, a first clamping portion is provided on the second shell portion, a second clamping portion is provided on the first shell portion of the connection structure corresponding to the first clamping portion, and the first clamping portion is clamped and connected to the second clamping portion.

[0013] In a specific embodiment of the present invention, one of the first engaging portion and the second engaging portion is a groove, and the other of the first engaging portion and the second engaging portion is a protrusion.

[0014] As can be seen from the above, a charging device provided by an embodiment of the utility model is provided with a first charging module and a second charging module. The first charging module is provided with a first output interface for providing a charging function, and the second charging module is detachably electrically connected to the first charging module, so that when a user needs multiple types or multiple numbers of interfaces, the second charging module can be inserted into the first charging module. The second charging module has a fast charging module and can provide a fast charging function. A higher current and voltage are provided to an external device through the second output interface, the number and types of interfaces are increased, and more options of the number and type of interfaces are provided to the user, thereby increasing the convenience of the charging device. If a mobile charging device needs to be carried, the user can only use the second charging module, which has a fast charging function and is smaller in size and portability. The desktop charging station that can provide multiple interfaces in the prior art is large in size, and the portable fast-charging power adapter that can provide a smaller size in the prior art has a smaller number of interfaces. Compared with the desktop charging station and portable fast-charging power adapter in the prior art, the charging device provided in this embodiment provides greater flexibility and convenience, meets the different needs of users for charging electronic devices, and users can choose a suitable charging module according to actual conditions, which reduces the size and occupied space of the charging equipment and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of a charging device provided in an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the charging device.

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of region A is shown.

[0019] Figure 4 for Figure 1 Another schematic diagram of the structure of the charging device.

[0020] Figure 5 for Figure 4 A schematic diagram of the structure of region B is shown.

[0021] Figure 6 for Figure 1 A schematic structural diagram of a second charging module is shown.

[0022] Figure 7 for Figure 1 Another structural schematic diagram of the second charging module is shown.

[0023] [Description of Reference Numerals]

[0024] 10: Charging device; 100: First charging module; 110: Third output interface; 120: Power plug; 130: First output interface; 210: First shell; 211: Connecting hole; 212: First side; 213: Third side; 220: Conductive connector; 300: Second charging module; 310: Main shell; 311: Power pin; 312: Pin accommodating portion; 313: Second shell; 320: Second output interface; 410: First engaging portion; 420: Second engaging portion. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, top, bottom) in the embodiments of the utility model are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the term "vertical" involved in the utility model embodiments and claims means that the angle between the two elements is 90° or there is a deviation of -5° to +5°, and the term "parallel" involved means that the angle between the two elements is 0° or there is a deviation of -5° to +5°.

[0027] In the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] The charging device 10 provided in this embodiment can be connected to an external electronic device and power the external electronic device through an output interface. The external electronic device can be, for example, a mobile phone, a tablet computer, a power bank, etc. The charging device 10 can provide users with multiple output interfaces and multiple interface types to meet user needs. At the same time, the second charging module 300 with a fast charging function in the charging device 10 can be removed from the first charging module 100 to facilitate user carrying and meet user needs.

[0029] See also Figure 1 , an embodiment of the utility model provides a charging device 10. The charging device 10 includes, for example, a first charging module 100 and a second charging module 300.

[0030] Specifically, see Figure 1 The first charging module 100 is provided with a power plug 120 for connecting to an external socket to supply power to the charging device 10. The second charging module 300 is detachably electrically connected to the first charging module 100, and the second charging module 300 has a fast charging function. The second charging module 300 is provided with a second output interface 320. When the first charging module 100 is electrically connected to the second charging module 300, the second output interface 320 is used to quickly charge the external device.

[0031] Among them, the first charging module 100 is, for example, a charging station or a charging socket. The number of the power plug 120 on the first charging module 100 is, for example, 1, and the power plug 120 is, for example, a conventional two-pin / three-pin power cord plug that can be inserted into a power socket to provide power to the charging device 10. In some embodiments, the power plug 120 can also use connectors such as Type A and Type C. The first charging module 100 is provided with a first output interface 130, and the number of the first output interface 130 is 1 or more, and the first output interface 130 is, for example, a five-position socket of a conventional socket. The second charging module 300 is, for example, a power adapter with a fast charging function, for example, including a fast charging module, and a second output interface 320 is provided on the second charging module 300, and the second charging module 300 is charged by the second output interface 320 for an external device. The second charging module 300 is, for example, detachably inserted in the first charging module 100 and electrically connected to the first charging module 100. Among them, the number of the second output interface 320 is 1 or more, and the interface types of the second output interface 320 and the first output interface 130 may include one or more, and the present embodiment is not limited thereto. It should be noted that fast charging refers to a charging mode in which the charging power is greater than or equal to 10W (i.e., the voltage is 5V and the current is 2A). Specifically, the fast charging module includes a protocol chip, and the communication protocol of the protocol chip may include, for example, QC (Quick Charge), PD (Power Delivery) and other protocols. The protocol chip sets the charging power of the fast charging mode as needed, such as a PD fast charging mode with a power of 18W (i.e., a voltage of 9V and a current of 2A). In some embodiments, the protocol chip can support multiple charging protocols at the same time.

[0032] A charging device 10 provided by the embodiment of the utility model is provided with a first charging module 100 and a second charging module 300. The first charging module 100 is provided with a first output interface 130 for providing a charging function, and the second charging module 300 is detachably electrically connected to the first charging module 100, so that when a user needs multiple types or multiple numbers of interfaces, the second charging module 300 can be inserted into the first charging module 100. The second charging module 300 has a fast charging module and can provide a fast charging function, and provides a higher current and voltage for an external device through a second output interface 320, increasing the number and types of interfaces, providing users with more options for the number of interfaces and interface types, and increasing the convenience of the charging device 10. If a mobile charging device needs to be carried, the user can only use the second charging module 300, which has a fast charging function and has a small size and portability.

[0033] The second charging module 300 is, for example, a gallium nitride charger. Specifically, the fast charging module of the second charging module 300 includes, for example, a transformer module and a switch module. The switch module is electrically connected to the transformer module and is used to switch the transformer module. The transformer module is used to step down the 220V mains to output the DC voltage required by the electronic device. The switch module includes, for example, a gallium nitride MOS tube (i.e., GaN MOSFET, gallium nitride metal oxide semiconductor field effect tube). The gallium nitride MOS tube has a lower leakage current and a higher switching speed, so that the gallium nitride charger has a high efficiency in power conversion capability, and can efficiently convert the input power into DC power, thereby improving the charging efficiency.

[0034] If the demand for greater charging power is to be met, the transformer module needs to be equipped with a coil with more turns, resulting in a larger size of the gallium nitride charging station that can provide multiple fast charging interfaces in the prior art. In order to improve the charging efficiency, the corresponding setting of a switch module with a gallium nitride MOS tube will also lead to an increase in cost. The number of interfaces that can provide a smaller gallium nitride charging head in the prior art is small. Compared with the gallium nitride charging station and gallium nitride charging head in the prior art, the charging device 10 provided in this embodiment provides greater flexibility and convenience, meets the different needs of users for charging electronic devices, and users can choose a suitable charging module according to actual conditions, reducing the size and occupied space of the charging equipment and improving the user experience.

[0035] See also Figure 2 The charging device 10 further includes a connection structure for detachably connecting the first charging module 100 and the second charging module 300 .

[0036] Specifically, the connection structure includes, for example, a first shell portion 210 and a second shell portion 313. The second charging module 300 includes, for example, a main shell portion 310, and the main shell portion 310 is connected to the second shell portion 313 to form a complete shell to accommodate the electronic components inside the second charging module 300 in the complete shell. Among them, the first shell portion 210, the second shell portion 313 and the main shell portion 310 are, for example, made of insulating materials, such as insulating plastic or rubber, etc., which are used to isolate the adverse effects of current. The first shell portion 210 is, for example, arranged on the first charging module 100, and the second shell portion 313 is, for example, arranged on the second charging module 300, and the second shell portion 313 and the first shell portion 210 are arranged correspondingly. For example, the first shell portion 210 is, for example, Figure 2 The rectangular parallelepiped housing shown in the figure, the second housing portion 313 is for example Figure 6The groove-type shell shown in the figure corresponds to the rectangular shell, and the first shell portion 210 and the second shell portion 313 can be detachably connected, for example, by plugging. In other embodiments, the shape, position and connection method of the first shell portion 210 and the second shell portion 313 can be set according to the actual needs of the user, and the present embodiment is not limited to this.

[0037] See also Figure 4 and Figure 5 , the charging device 10 further includes a conductive connector 220. Specifically, it is arranged in the first shell 210, and a connecting through hole 211 communicating with the conductive connector 220 is provided on the first shell 210, and the conductive connector 220 is electrically connected to the first charging module 100. The second charging module 300 is provided with a power pin 311. When the first charging module 100 is electrically connected to the second charging module 300, the power pin 311 passes through the connecting through hole 211 and is accommodated in the connecting structure, and is electrically connected to the first charging module 100 through the conductive connector 220. The second charging module 300 is detachably connected to the first charging module 100 through the second shell 313 and the first shell 210.

[0038] The first shell 210 forms a receiving cavity. Figure 3 The first shell 210 is provided with a connecting through hole 211, the accommodating cavity is connected to the connecting through hole 211, the conductive connecting member 220 is arranged in the accommodating cavity and is arranged corresponding to the connecting through hole 211, and the conductive connecting member 220 is electrically connected to the first charging module 100. The power pin 311 passes through the connecting through hole 211 and is accommodated in the accommodating cavity, and is electrically connected to the first charging module 100 through the conductive connecting member 220. The conductive connecting member 220 is, for example, a conductive member made of a metal material, and is used to electrically connect the first charging module 100 with the second charging module 300. The power pin 311 is made of a metal material such as copper alloy. The power pin 311 is the power input interface of the second charging module 300, and is used to electrically connect the first charging module 100 with the second charging module 300. One end of the power pin 311 is electrically connected to the first charging module 100 through the conductive connector 220, and the other end is electrically connected to the input end of the high-voltage component inside the second charging module 300 to provide power input.

[0039] In this embodiment, when the first charging module 100 and the second charging module 300 are connected, the power pin 311 is accommodated inside the connection structure, the power pin 311 is electrically connected to the first charging module 100 through the conductive connector 220, the power pin 311 is inserted into the first shell 210, and the power pin 311 is received in the connection structure, and the first shell 210 plays an isolation role, preventing the risk of sparks caused by direct contact between the power pin 311 and the conductive connector 220, reducing fire hazards, and improving the safety of the charging device 10. At the same time, the use of the connection structure also makes the charging device 10 more beautiful and increases the added value of the product.

[0040] Preferably, the conductive connector 220 is a U-shaped structure, the two free ends of the U-shaped structure correspond to the connecting through holes 211, the first limiting portion and the second limiting portion are respectively provided on the opposite sides of the U-shaped structure, and the power pin 311 is provided between the first limiting portion and the second limiting portion.

[0041] The first limiting portion and the second limiting portion are, for example, the peak of the bent portion on the conductive connector 220, and the peak is arranged close to the power pin 311 to limit the power pin 311. In other embodiments, the first limiting portion and the second limiting portion may also be other limiting structures, such as protrusions, etc., and this embodiment is not limited thereto. The two free ends of the U-shaped structure correspond to the connecting through holes 211, so that the power pin 311 can accurately connect to the conductive connector 220. At the same time, the first limiting portion and the second limiting portion are arranged on the opposite sides of the U-shaped structure to limit the position of the power pin 311 to ensure that it is correctly inserted and maintains stability. The setting of the U-shaped structure makes the conductive connector 220 have better adaptability and fixity.

[0042] Furthermore, the first charging module 100 is provided with a third output interface 110, and the second charging module 300 is provided with a conversion circuit. When the first charging module 100 is electrically connected to the second charging module 300, the third output interface 110 is electrically connected to the fast charging module through the conversion circuit.

[0043] The second charging module 300 is provided with a conversion circuit. Figure 1, the number of the third output interface 110 is one or more, and the interface type of the third output interface 110 may include one or more, and the present embodiment is not limited thereto. The third output interface 110 is, for example, a USB connector (such as Type-A, Type-C or Lightning connector, etc.), and the first charging module 100 charges the external device in a normal charging mode through the third output interface 110. The normal charging mode is, for example, a charging mode with a charging power less than or equal to 5W, and the voltage output by the third output interface 110 is 5V and the current is 1A. When the user needs multiple fast charging interfaces, the user can insert the second charging module 300 into the first charging module 100, and the conversion circuit can enable the third output interface 110 of the first charging module 100 to have a fast charging function. In this way, the charging device 10 can provide higher current and voltage to meet the fast charging requirements, and increase the number and types of interfaces, provide users with more choices of the number of interfaces and interface types, and increase the convenience of the charging device 10.

[0044] In one implementation of this embodiment, see Figure 5 The first shell 210 has a first side surface 212 connected to the first charging module 100 and a second side surface arranged opposite to the first side surface 212. The connecting through hole 211 is opened on the first side surface 212. The power pin 311 slides through the connecting through hole 211 along the first side surface toward the second side surface to be accommodated in the accommodating cavity and electrically connected to the first charging module 100.

[0045] In another implementation of this embodiment, see Figure 5 The first shell 210 has a third side surface 213 connected to the first charging module 100 and a fourth side surface arranged opposite to the third side surface 213. The third side surface 213 is connected to the first side surface 212. The connecting through hole 211 is opened on the third side surface 213. The power pin 311 slides along the third side surface 213 toward the fourth side surface through the connecting through hole 211 to be accommodated in the accommodating cavity and electrically connected to the first charging module 100.

[0046] When the first charging module 100 is connected to the second charging module 300, the power pin 311 slides through the connecting hole 211 from the side of the first shell 210 rather than the front, and then is accommodated in the accommodation cavity of the first shell 210. The power pin 311 is electrically connected to the first charging module 100 through the conductive connector 220. Compared with the direct plug-in method of the prior art, which has the risk of fire, the second charging module 300 of this embodiment can slide left and right or up and down so that the power pin 311 can be accurately and stably inserted into the first shell 210. The power pin 311 is accommodated in the connection structure, and the connection structure plays an isolation role to prevent the risk of sparks caused by direct contact between the power pin 311 and the conductive connector, thereby reducing the fire hazard and improving the safety of the charging device 10.

[0047] See also Figure 6 and Figure 7 The main shell 310 of the second charging module 300 is provided with a pin accommodating portion 312, and the power pin 311 is rotatably connected to the main shell 310. The power pin 311 has a relative position to the main shell 310. Figure 7 Shown in open state and Figure 6 In the closed state shown, when the power pin 311 is in the closed position, the power pin 311 is accommodated in the pin receiving portion 312 .

[0048] When the power pin 311 rotates to the closed state, the free end of the power pin 311 is received in the pin receiving portion 312 of the main shell 310. The pin receiving portion 312 is, for example, a groove, etc., for receiving the power pin 311. Preferably, the bottom wall of the pin receiving portion 312 is a plane, an inclined surface, a convex curved surface or a concave curved surface, but the present embodiment is not limited thereto. The pin receiving portion 312 can be provided as a whole, such as Figure 6 and Figure 7 In other embodiments, the pin receiving portion 312 may also be provided in two separate parts, and this embodiment is not limited thereto. In order to enhance the user experience, the user can easily turn the power pin 311.

[0049] See also Figure 7 The second shell portion 313 is provided with a first engaging portion 410, see Figure 3 The first shell 210 of the connection structure is provided with a second engaging portion 420 corresponding to the first engaging portion 410. One of the first engaging portion 410 and the second engaging portion 420 is a groove, and the other of the first engaging portion 410 and the second engaging portion 420 is a protrusion, and the first engaging portion 410 is engaged with the second engaging portion 420.

[0050] For example, the first engaging portion 410 is Figure 7The rectangular slot shown is used for slidingly inserting the power pin 311, and the second engaging portion is, for example, Figure 3 The rectangular protrusion shown in the figure is not limited to this embodiment. When the first charging module 100 and the second charging module 300 are connected, the first engaging portion 410 and the second engaging portion 420 are engaged in a concave-convex manner. In this way, when the first charging module 100 and the second charging module 300 are connected, the connection stability can be improved to prevent the second charging module 300 from being separated from the first charging module 100, which affects the user's use of the electronic device. When the second charging module 300 needs to be used alone, the user usually needs to apply a slight thrust to disengage the first engaging portion 410 from the second engaging portion 420, and the second charging module 300 is removed from the first charging module 100, thereby ensuring the stability of the charging device 10 in different states, preventing the charging device 10 from accidentally disengaging when not needed, and allowing the user to easily switch the connection state of the first charging module 100 and the second charging module 300 when needed.

[0051] In addition, it can be understood that the aforementioned embodiments are merely illustrative descriptions of the present invention. Under the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A charging device (10), characterized in that: include: A first charging module (100), wherein the first charging module (100) is provided with a power plug (120) and a first output interface (130); The second charging module (300) is detachably electrically connected to the first charging module (100); the second charging module (300) has a fast charging module, and the second charging module (300) is provided with a second output interface (320); when the first charging module (100) is electrically connected to the second charging module (300), the second output interface (320) is used to quickly charge an external device.

2. The charging device (10) according to claim 1, characterized in that: Also includes: A connection structure comprises: a first shell (210) and a second shell (313), wherein the first shell (210) is arranged on the first charging module (100), and the second shell (313) is arranged on the second charging module (300), the second shell (313) and the first shell (210) are arranged correspondingly, and the second charging module (300) is detachably connected to the first charging module (100) via the second shell (313) and the first shell (210).

3. The charging device (10) according to claim 2, characterized in that: Also includes: A conductive connecting member (220), the conductive connecting member (220) being arranged in the first shell portion (210), the first shell portion (210) being provided with a connecting through hole (211) corresponding to the conductive connecting member (220), and the conductive connecting member (220) being electrically connected to the first charging module (100); The second charging module (300) is provided with an electrical connection pin (311), and when the first shell portion (210) and the second shell portion (313) are connected, the electrical connection pin (311) passes through the connecting through hole (211) and is electrically connected to the conductive connecting member (220).

4. The charging device (10) according to claim 3, characterized in that: The conductive connecting piece (220) is a U-shaped structure, the two free ends of the U-shaped structure correspond to the connecting through hole (211), a limiting portion is formed between two opposite sides of the U-shaped structure, and the power connection pin (311) is arranged in the limiting portion.

5. The charging device (10) according to claim 1, characterized in that: The first charging module (100) is provided with a third output interface (110); The second charging module (300) is provided with a conversion circuit, and when the first charging module (100) is electrically connected to the second charging module (300), the third output interface (110) is electrically connected to the fast charging module through the conversion circuit.

6. The charging device (10) according to claim 3, characterized in that: The first shell portion (210) comprises a first side surface (212) connected to the first charging module (100) and a second side surface arranged opposite to the first side surface (212); the connecting through hole (211) is provided on the first side surface (212); the power connecting pin (311) slides through the connecting through hole (211) along the first side surface toward the second side surface to be accommodated in the first shell portion (210) and electrically connected to the conductive connecting member (220).

7. The charging device (10) according to claim 3, characterized in that: The first shell portion (210) comprises a first side surface (212) and a third side surface (213) connected to the first charging module (100), and a fourth side surface arranged opposite to the third side surface (213), and the third side surface (213) is connected to the first side surface (212), the connecting through hole (211) is opened on the third side surface (213), and the power connecting pin (311) slides along the third side surface (213) toward the fourth side surface through the connecting through hole (211) to be accommodated in the first shell portion (210) and electrically connected to the conductive connecting member (220).

8. The charging device (10) according to claim 3, characterized in that: The second charging module (300) comprises a main shell portion (310) connected to the second shell portion (313); a pin accommodating portion (312) is provided on the main shell portion (310); the power connection pin (311) is rotatably connected to the main shell portion (310); the power connection pin (311) has a closed state relative to the main shell portion (310); when the power connection pin (311) is in the closed state, the power connection pin (311) is accommodated in the pin accommodating portion (312).

9. The charging device (10) according to claim 3, characterized in that: The second shell portion (313) is provided with a first clamping portion (410), the first shell portion (210) is provided with a second clamping portion (420) corresponding to the first clamping portion (410), and the first clamping portion (410) is clamped and connected to the second clamping portion (420).

10. The charging device (10) according to claim 9, characterized in that One of the first engaging portion (410) and the second engaging portion (420) is a groove, and the other of the first engaging portion (410) and the second engaging portion (420) is a protrusion.

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