Transmission equipment, combined transmission equipment and combined charging transmission equipment

Abstract

The present application belongs to the technical field of electronic equipment, and particularly relates to a transmission device, a combined transmission device, and a combined charging transmission device. The transmission device includes a main body and a connector, and the main body has at least a first interface part, a second interface part, and a third interface part. The first interface part is configured to access a first terminal device, the second interface part is configured to access a second terminal device, and the third interface part is configured to be electrically connected to a mobile power supply. The connector is constructed to connect a mobile power supply. On the one hand, the transmission device can realize the data transmission function between two terminal devices, and on the other hand, the transmission device and the mobile power supply can be combined through the connector to meet the needs of data transmission and charging for the user's terminal device. The transmission device provided in the present application has better versatility and flexibility of use through the electrical connection and detachable matching design with the mobile power supply.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and in particular relates to a transmission device, a combined transmission device, and a combined charging transmission device. Background Art

[0002] In recent years, docking stations have become increasingly popular in people's lives, providing convenience for desktop office work. However, in the existing usage scenarios, docking stations are mostly simply placed on the desktop for use, and their usage scenarios are relatively single and their usage flexibility is insufficient. Utility Model Content

[0003] The embodiments of the present application provide a transmission device, a combined transmission device and a combined charging transmission device, which have better flexibility in use.

[0004] To achieve the above-mentioned purpose, in the first aspect, an embodiment of the present application provides a transmission device, including a main body, wherein the main body has at least a first interface part, a second interface part and a third interface part, the first interface part is configured to connect to a first terminal device, the second interface part is configured to connect to a second terminal device, and the third interface part is configured to be electrically connected to a mobile power supply. In this embodiment, the transmission device also includes a connector, which is provided on the main body and is configured to connect to a mobile power supply. The connector can fix the transmission device and the mobile power supply to each other to form an integral device.

[0005] In this way, the transmission device provided by the embodiment of the present application has a first interface part and a second interface part connected to the first terminal device and the second terminal device of the outside world to realize the data transmission function between the two terminal devices, and the third interface part of the transmission device is connected to the mobile power supply, so that the mobile power supply can be connected to the transmission device through the third interface, and the terminal device is powered by the transmission device, so that the transmission device also has a charging function, and the connecting piece of the transmission device is detachably connected to the mobile power supply, which provides users with flexibility in function selection. When the user is faced with the functional requirements of data transmission and charging at the same time, the transmission device and the mobile power supply can be combined through the connecting piece to meet the data transmission and charging of the user's terminal device. When the user only faces the data transmission demand, due to the detachable matching relationship between the connecting piece and the mobile power supply, the user can remove the transmission device from the mobile power supply and use it alone. In this way, the transmission device provided by the embodiment of the present application has better versatility and flexibility of use through the electrical connection and detachable matching design with the mobile power supply.

[0006] In other embodiments of the present application, the connecting member includes a magnetic member, which is disposed on the main body and is configured to be magnetically coupled with the mobile power supply.

[0007] In some other embodiments of the present application, the third interface portion and the magnetic member are integrated into a magnetic spring pin connector.

[0008] In some other embodiments of the present application, the second interface portion, the third interface portion and the magnetic member are integrated into a magnetic spring pin connector.

[0009] In some other embodiments of the present application, the second interface portion or the third interface portion and the magnetic member are integrated into a magnetic spring pin connector.

[0010] In some other embodiments of the present application, the outer surface of the body is defined to have three different regions, namely, a first region, a second region and a third region;

[0011] The first interface portion is located in the first area, the second interface portion is located in the second area, and the third interface portion is located in the third area.

[0012] In some other embodiments of the present application, the first interface portion and the second interface portion are both located in the first area or the second area, and the third interface portion is located in the third area.

[0013] In other embodiments of the present application, the connecting member includes a buckle structure, which is provided on the main body and is constructed to be detachably connected to the mobile power supply.

[0014] In other embodiments of the present application, the connector includes a plug-in structure, which is disposed on the main body and is configured to be plugged in and matched with the mobile power supply.

[0015] In a second aspect, an embodiment of the present application further provides a combined transmission device, comprising a first transmission device and the above-mentioned transmission device, wherein the above-mentioned transmission device is electrically connected and used in combination with the first transmission device as a second transmission device.

[0016] In this embodiment, by combining the first transmission device and the second transmission device, the number of interfaces of the combined transmission device can be better expanded, thereby meeting the user's needs of using the combined transmission device to connect multiple terminal devices, so that the combined transmission device can meet more application scenarios.

[0017] In some other embodiments of the present application, the first transmission device and the second transmission device are detachably connected.

[0018] In some other embodiments of the present application, the first transmission device forms a limiting portion, and the limiting portion is configured to limit the movement of the terminal device that cooperates with the combined transmission device.

[0019] In some other embodiments of the present application, the limiting portion is a groove, and the groove is used to accommodate at least a part of the terminal device.

[0020] In other embodiments of the present application, the first transmission device has a first extension part, a second extension part and a base, the first extension part and the second extension part are both arranged on the base and spaced apart from each other, the first extension part, the second extension part and the base jointly define a groove, and the first extension part or the second extension part and the second transmission device are detachably connected.

[0021] In some other embodiments of the present application, the first extension portion or the second extension portion and the second transmission device are magnetically connected and assembled into an integral structure.

[0022] In some other embodiments of the present application, the first extension portion or the second extension portion has a charging cable, and the charging cable is configured to be electrically connected to the terminal device.

[0023] In other embodiments of the present application, the end of the charging cable has a magnetic spring pin connector, and the magnetic spring pin connector is configured to be electrically connected to a terminal device.

[0024] In other embodiments of the present application, the charging cable is received in the groove.

[0025] In some other embodiments of the present application, the first extension portion or the second extension portion has a wireless charging module, and the wireless charging module is configured to supply power to the terminal device.

[0026] In a third aspect, an embodiment of the present application further provides a combined charging transmission device, including a mobile power supply, the combined charging transmission device also includes the above-mentioned transmission device or the above-mentioned combined transmission device, the transmission device or the combined transmission device is detachably connected and electrically connected to the mobile power supply.

[0027] In this embodiment, by combining a mobile power source with the above-mentioned combined transmission device, the combined transmission device is endowed with a charging function, so that it can provide users with data transmission functions and charging functions at the same time. The detachable design of the mobile power source and the combined transmission device provides users with flexible usage options. Users can choose a combined charging transmission device with a mobile power source and a combined transmission device to realize charging and data transmission of terminal devices, or simply use the combined transmission device to transmit data between terminal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a scenario in which a transmission device provided in an embodiment of the present application cooperates with a first terminal device, a second terminal device, and a mobile power supply;

[0029] Figure 2 A schematic diagram of the structure of a transmission device provided in an embodiment of the present application;

[0030] Figure 3A schematic diagram of the structure of a transmission device from another perspective provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of a combined transmission device provided in an embodiment of the present application;

[0032] Figure 5 for Figure 4 The exploded structural diagram of the combined transmission device shown;

[0033] Figure 6 A schematic diagram of the structure of a combined charging transmission device provided in an embodiment of the present application;

[0034] Figure 7 for Figure 6 The exploded structural diagram of the combined transmission device shown;

[0035] Figure 8 Another structural schematic diagram of the combined charging transmission device provided in an embodiment of the present application;

[0036] Fig. 9 for Figure 8 Schematic diagram of the exploded structure of the combined transmission equipment shown.

[0037] Description of reference numerals:

[0038] 10—Transmission equipment 11—Main body 12—Connector

[0039] 20—first terminal device 30—second terminal device 40—mobile power supply

[0040] 50 - first transmission device 51 - limit part 52 - first extension part

[0041] 53 - second extension part 54 - base 100 - combined transmission device

[0042] 111 - first interface part 112 - second interface part 113 - third interface part

[0043] 114 - first area 115 - second area 116 - third area

[0044] 200—Combined charging and transmission equipment. DETAILED DESCRIPTION

[0045] The following is combined with Figures 1 to 9 , the specific implementation methods of the present application are described in detail, but it should be understood that the protection scope of the present application is not limited by the specific implementation methods.

[0046] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0048] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0049] In order to help readers better understand the embodiments of the present application, the following explains the terms and abbreviations that appear in the present application:

[0050] Type-C port: also known as USB-C, is a hardware interface form of a universal serial bus.

[0051] HDMI interface: (High Definition Multimedia Interface) High Definition Multimedia Interface is a fully digital video and sound transmission interface.

[0052] Pogo Pin interface: It is a precision connector used in electronic products, also known as spring pin connector, which is widely used in various electronic products and plays a role in signal transmission connection.

[0053] In recent years, desktop data transmission and storage devices such as docking stations and hard disks have become increasingly popular in people's lives, providing convenience for desktop office work. However, in the existing usage scenarios, the above devices are mostly simply placed on the desktop for use, and their usage scenarios are relatively single and lack flexibility.

[0054] Therefore, if Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the embodiment of the present application provides a transmission device 10, a combined transmission device 100 and a combined charging transmission device 200, which have better flexibility of use. For example, the combined charging transmission device 200 can be a docking station with a mobile power supply 40, which includes the combined transmission device 100, and the combined transmission device 100 can be composed of two docking stations and includes the transmission device 10. The transmission device can be an independently working docking station and can be used in combination with the mobile power supply 40.

[0055] Specifically, please refer to Figure 1 to Figure 3 The embodiment of the present application provides a transmission device 10, including a main body 11, the main body 11 at least having a first interface portion 111, a second interface portion 112 and a third interface portion 113, the first interface portion 111 is configured to access an external first terminal device 20, the second interface portion 112 is configured to access an external second terminal device 30, and the third interface portion 113 is configured to electrically connect to an external mobile power supply 40. The transmission device 10 also includes a connector 12, which is provided on the main body 11 and is configured to be detachably connected to the mobile power supply 40.

[0056] For example, in this embodiment, the transmission device 10 may be a docking station or a mobile hard disk, etc., and the mobile power supply 40 may be a power bank product, or a portable outdoor power supply with a larger volume and battery capacity.

[0057] In this embodiment, the transmission device 10 is used as an expansion dock for example. The first interface portion 111 can be a terminal device access port of the expansion dock, which can usually be a Type-C port, and can be connected to a laptop, mobile phone, tablet computer, smart watch, voice recorder, smart glasses, etc. as the first terminal device 20. The number of second interfaces can be multiple, and the interface types can be different, such as an HDMI interface, a TF (Trans-flashCard) card slot interface, a network cable interface, an audio interface, a Type-C port, and a USB interface, so as to expand the interface type of the first terminal device 20 so that it can adapt to different second terminal devices 30.

[0058] Exemplarily, the third interface portion 113 is used to electrically connect to the mobile power supply 40, specifically, it can be a charging connection or a communication connection at the same time. Considering the design feature that the docking station and the mobile power supply 40 can be separated, the third interface portion 113 can be a Pogo Pin interface, etc.

[0059] The transmission device 10 provided in the embodiment of the present application is further explained as follows: the transmission device 10 provided in the embodiment of the present application, its first interface part 111 and the second interface part 112 are connected to the first terminal device 20 and the second terminal device 30 of the outside world, so as to realize the data transmission function between the two terminal devices, and the third interface part 113 of the transmission device 10 is connected to the mobile power supply 40, so that the mobile power supply 40 can be connected to the transmission device 10 through the third interface, and the terminal device is powered by the transmission device 10, so that the transmission device 10 also has a charging function, and the connecting member 12 of the transmission device 10 is detachably connected to the mobile power supply 40, so as to provide users with flexibility in function selection. When the user is faced with the functional requirements of data transmission and charging at the same time, the transmission device 10 and the mobile power supply 40 can be combined through the connecting member 12 to meet the data transmission and charging of the user's terminal device. When the user only faces the data transmission demand, due to the detachable matching relationship between the connecting member 12 and the mobile power supply 40, the user can remove the transmission device 10 from the mobile power supply 40 and use it alone. In this way, the transmission device 10 provided in the embodiment of the present application has better versatility and flexibility of use through the electrical connection and detachable matching design with the mobile power supply 40.

[0060] In another embodiment of the present application, Figures 1 to 3 As shown, the connector 12 includes a magnetic member (not shown), which is disposed on the main body 11 and is configured to be magnetically matched with the mobile power source 40. Specifically, the magnetic matching of the transmission device 10 such as the expansion dock and the mobile power source 40 such as the power bank can better enhance the quick separation experience of the two, so that the user can easily and quickly separate or combine the transmission device 10 and the mobile power source 40 according to their actual needs.

[0061] For example, the magnetic member may be one or more magnetic blocks in various shapes such as annular, triangular, linear, etc., arranged on the outer wall of the main body 11. The housing of the mobile power supply 40 is also provided with magnets or magnetophilic metals to attract the magnetic member.

[0062] In another embodiment of the present application, Figure 1 and Figure 2 As shown, the third interface portion 113 and the magnetic member are integrated into a magnetic spring pin connector. Specifically, the provision of the magnetic spring pin connector can realize the integration of the third interface portion 113 and the magnetic member. For the user, when the transmission device 10 is magnetically connected to the mobile power source 40, the electrical connection between the transmission device 10 and the mobile power source 40 is also completed, so that the user can quickly combine the transmission device 10 and the mobile power source 40 for use.

[0063] Exemplarily, the magnetic spring pin connector may specifically be a pogopin type connector, whose structure is formed by components such as a contact needle, a spring and a needle tube through processes such as riveting, and has good elastic contact conductive properties and anti-corrosion and anti-corrosion properties.

[0064] The third interface portion 113 can be present as a contact pin in the magnetic spring pin connector, and has the functions of charging and communication. The magnetic part can be a magnetized contact pin or an independent magnetic contact terminal. In this way, the transmission device 10 and the mobile power supply 40 only need a magnetic spring pin connector to achieve electrical and structural connection. On the one hand, the connection structure is simplified, and on the other hand, the magnetic connection method also takes into account the convenience and reliability of the electrical connection.

[0065] In another embodiment of the present application, the second interface portion 112, the third interface portion 113 and the magnetic member are integrated into a magnetic spring pin connector. Specifically, in this embodiment, the second interface portion 112, the third interface portion 113 and the magnetic member are integrated into an integral part, namely a magnetic spring pin connector. In this way, by sharing the functions of the second interface portion 112 and the third interface portion 113, one interface portion can be omitted, thereby simplifying the structure of the transmission device 10, making the appearance of the device more concise overall, and also saving the manufacturing cost of the transmission device 10.

[0066] In another embodiment of the present application, Figure 2 As shown, for ease of description, the outer surface of the main body 11 is defined as having three different areas, namely the first area, the second area and the third area. The different areas may be different areas on the same surface of the main body 11, or distributed on different surfaces of the main body 11. Exemplarily, the two opposite surfaces are the first area 114 and the second area 115, respectively, and the surface located in the first area 114 and the second area 115 is the third area 116. In this embodiment, the first interface portion 111 is located in the first area 114, the second interface portion 112 is located in the second area 115, and the third interface portion 113 is located in the third area 116.

[0067] For example, taking the main body 11 as a block, the first area 114 and the second area 115 can be understood as the right side and the left side of the block respectively, and the third area 116 can be understood as the top surface or the bottom surface of the block.

[0068] Based on the above definitions of the first area 114, the second area 115, and the third area 116, the first interface portion 111 and the second interface portion 112 are both located in the first area 114 or the second area 115, and the third interface portion 113 is located in the third area 116. Specifically, through the above configuration, the first interface portion 111, the second interface portion 112, and the third interface portion 113 are independent of each other in space, and do not interfere with each other when the three interface portions work at the same time, thereby providing users with better adaptability to usage scenarios.

[0069] Exemplarily, according to the spatial positional relationship among the first interface portion 111, the second interface portion 112 and the third interface portion 113, when the transmission device 10 is an expansion dock, when the expansion dock and the power bank are stacked, the first interface portion 111 and the second interface portion 112 on the left and right sides of the expansion dock are also available to the user at any time, thereby providing the expansion dock with a better user experience.

[0070] In another embodiment of the present application, the connector 12 includes a buckle structure (not shown), which is provided on the main body 11 and is configured to be detachably connected to the mobile power supply 40. Specifically, by making the buckle structure snap-fit ​​with the mobile power supply 40, the connection strength between the transmission device 10 and the mobile power supply 40 can be improved on the one hand, and the quick disassembly between the transmission device 10 and the mobile power supply 40 is also facilitated on the other hand.

[0071] For example, the buckle structure can be a clip that is clamped to a clamping portion on the housing of the mobile power supply 40. The buckle structure can also be a buckle, a plug buckle, a press-type or toggle-type elastic lock pin structure, and a quick release pin structure, etc., to achieve rapid connection and separation between the transmission device 10 and the mobile power supply 40.

[0072] For example, the connector 12 may also be a plug-in structure. The plug-in structure is provided on the main body 11 and is configured to be plugged and matched with the mobile power supply 40. Specifically, by designing the connector 12 as a plug-in structure, the convenience of separation and combination between the transmission device 10 and the mobile power supply 40 is better improved.

[0073] like Figures 4 to 6 As shown, the embodiment of the present application further provides a combined transmission device 100, including a first transmission device 50 and the above-mentioned transmission device 10, the transmission device 10 is used as a second transmission device 10 and is electrically connected and used in combination with the first transmission device 50. In this embodiment, the combined transmission device 100 is taken as a combined docking station for example.

[0074] Specifically, the first transmission device 50 and the second transmission device 10 can be two docking stations of a combined docking station, and can be specifically a mother-child docking station design, that is, a mother docking station and a child docking station. The first transmission device 50 is used as a mother docking station, and the second transmission device 10 is used as a child docking station. The mother docking station and the child docking station can be combined and used as a docking station, or they can be separated from each other and used as two independent docking stations.

[0075] In this embodiment, by combining the first transmission device 50 and the second transmission device 10 for use, the number of interfaces of the combined transmission device 100 can be better expanded, thereby meeting the user's needs of using the combined transmission device 100 to connect multiple terminal devices, so that the combined transmission device 100 can meet more application scenarios.

[0076] In another embodiment of the present application, the first transmission device 50 and the second transmission device 10 are detachably connected. Specifically, by making the two transmission devices 10 detachably connected, the convenience of disassembly and use of the combined transmission device 100 can be improved, thereby improving the user's product experience.

[0077] Exemplarily, a magnetic connection can be used between the first transmission device 50 and the second transmission device 10 to achieve rapid combination and separation of the two transmission devices 10. Specifically, a magnetic spring pin connector can be used, which can achieve magnetic connection on the one hand and electrical connection of the two transmission devices 10 on the other hand.

[0078] In another embodiment of the present application, Figure 4 and Figure 5 As shown, the first transmission device 50 forms a limiting portion 51, and the limiting portion 51 is configured to limit the movement of the terminal device that cooperates with the combined transmission device 100. Exemplarily, in this embodiment, the terminal device can be a mobile phone, a tablet computer, a laptop computer, a smart watch, a headset, etc. Specifically, by setting the limiting portion 51, the relative movement between the terminal device and the combined transmission device 100 can be constrained, thereby improving the working cooperation reliability between the terminal device and the combined transmission device 100.

[0079] For example, in this embodiment, the limiting portion 51 can be a groove, and the groove is used to accommodate at least part of the terminal device. Specifically, the bottom part of the terminal device can be placed in the groove, so that it is limited by the groove bottom and the groove walls on both sides of the groove, so as to simply and reliably realize the limiting of the centering terminal device.

[0080] In another embodiment of the present application, Figures 4 to 6As shown, the first transmission device 50 has a first extension part 52, a second extension part 53 and a base 54. The first extension part 52 and the second extension part 53 are both arranged on the base 54 and are spaced apart from each other. The first extension part 52, the second extension part 53 and the base 54 jointly define a groove. The first extension part 52 or the second extension part 53 and the second transmission device 10 are detachably connected.

[0081] Specifically, as mentioned above, the first extension part 52, the second extension part 53 and the base 54 are designed in a U-shape as a whole, so that a groove can be naturally defined without deliberately opening the groove, which simplifies the manufacturing process and also enhances the overall industrial design aesthetics of the first transmission device 50.

[0082] For example, the first extension part 52, the second extension part 53 and the base 54 can be integrally formed, which can improve the overall structural strength of the first transmission device 50. Alternatively, the first extension part 52 and / or the second extension part 53 can be plugged into the base 54 as an independent expansion dock, and the base 54 can also be used as an independent expansion dock, which can better improve the adaptability, modularity and scalability of the first transmission device 50.

[0083] Exemplarily, the first extension part 52 or the second extension part 53 is magnetically connected to the second transmission device 10 and is assembled into an integral structure. Specifically, one of the first extension part 52 and the second extension part 53 can be assembled with the second transmission device 10 to form an integral structure, and the configuration of the other of the first extension part 52 and the second extension part 53 is the same as the integral structure.

[0084] In another embodiment of the present application, the first transmission device 50 has a charging cable (not shown), which is configured to be electrically connected to the terminal device. For example, the charging cable can be arranged at the bottom of the groove, which is convenient for connecting to the charging port at the bottom of the terminal device in the groove, and is also convenient for storing the charging cable.

[0085] Preferably, the end of the charging cable has a magnetic spring pin connector, which is configured to be electrically connected to the terminal device, so as to facilitate the quick alignment of the charging cable and the charging port of the terminal device, especially the quick electrical connection in low light or dark environment.

[0086] In another embodiment of the present application, the first transmission device 50 has a wireless charging module (not shown), and the wireless charging module is configured to supply power to the terminal device. Specifically, the wireless charging module is integrated on the groove wall of the groove, and the terminal device can be adsorbed on the groove wall of the groove to realize charging, which can make the charging process more efficient and convenient.

[0087] like Figure 6 to Figure 9As shown, an embodiment of the present application also provides a combined charging transmission device 200, including a mobile power supply 40, and the combined charging transmission device 200 also includes the above-mentioned combined transmission device 100 or transmission device 10, the mobile power supply 40 and the combined transmission device 100 are detachably connected and electrically connected, and can supply power to external terminal devices through the combined transmission device 100 or the transmission device 10.

[0088] In this embodiment, by combining the mobile power supply 40 with the combined transmission device 100 or the transmission device 10, the combined transmission device 100 or the transmission device 10 is endowed with a charging function, so that it can provide the user with a data transmission function and a charging function at the same time. The detachable design of the mobile power supply 40 and the combined transmission device 100 or the transmission device 10 provides the user with flexible use options. The user can choose the combined charging transmission device 200 with the mobile power supply 40 and the combined transmission device 100 to realize the charging and data transmission of the terminal device, or simply use the combined transmission device 100 or the transmission device 10 to transmit data between terminal devices.

[0089] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustration and illustration. These descriptions are not intended to limit the present application to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present application and its practical application, so that those skilled in the art can realize and utilize the various exemplary embodiments of the present application and various selections and changes. The scope of the present application is intended to be limited by the claims and their equivalents.

Claims

1. A transmission device, comprising a main body, characterized in that: The main body has at least a first interface portion, a second interface portion and a third interface portion, the first interface portion is configured to connect to a first terminal device outside, the second interface portion is configured to connect to a second terminal device outside, and the third interface portion is configured to be electrically connected to an external mobile power supply; The transmission device further comprises a connecting member, which is arranged on the main body and is configured to be detachably connected to the mobile power source.

2. The transmission device according to claim 1, characterized in that: The connecting member includes a magnetic member, which is arranged on the main body and is configured to be magnetically matched with the mobile power source.

3. The transmission device according to claim 2, characterized in that: The third interface portion and the magnetic member are integrated into a magnetic spring pin connector; Alternatively, the second interface portion, the third interface portion and the magnetic member are integrated into a magnetic spring pin connector; Alternatively, the second interface portion or the third interface portion and the magnetic member are integrated into a magnetic spring pin connector.

4. The transmission device according to claim 2, characterized in that: The outer surface of the body is defined to have three different regions, namely a first region, a second region and a third region; The first interface portion is located in the first area, the second interface portion is located in the second area, and the third interface portion is located in the third area; Alternatively, the first interface portion and the second interface portion are both located in the first area or the second area, and the third interface portion is located in the third area.

5. The transmission device according to any one of claims 1 to 4, characterized in that: The connecting member includes a buckle structure, which is provided on the main body and is configured to be detachably connected to the mobile power source; Alternatively, the connector includes a plug-in structure, which is disposed on the main body and is configured to be plug-in-matched with the mobile power source.

6. A combined transmission device, characterized in that: The invention comprises a first transmission device and the transmission device according to any one of claims 1 to 5, wherein the transmission device is electrically connected to the first transmission device and used in combination as a second transmission device.

7. The combined transmission device according to claim 6, characterized in that: The first transmission device and the second transmission device are detachably connected.

8. The combined transmission device according to claim 6, characterized in that: The first transmission device forms a limiting portion, and the limiting portion is configured to limit the movement of the terminal device matched with the combined transmission device.

9. The combined transmission device according to claim 8, characterized in that: The limiting portion is a groove, and the groove is used to accommodate at least part of the terminal device.

10. The combined transmission device according to claim 9, characterized in that: The first transmission device comprises a first extension part, a second extension part and a base, the first extension part and the second extension part are both arranged on the base and spaced apart from each other, the first extension part, the second extension part and the base jointly define the groove, and the first extension part or the second extension part and the second transmission device are detachably connected.

11. The combined transmission device according to claim 10, characterized in that: The first extension part or the second extension part and the second transmission device are magnetically connected and assembled into an integral structure.

12. The combined transmission device according to claim 10, characterized in that: The first extension part or the second extension part has a charging line, and the charging line is configured to be electrically connected to the terminal device.

13. The combined transmission device according to claim 12, characterized in that: The end of the charging cable has a magnetic spring pin connector, and the magnetic spring pin connector is configured to be electrically connected to the terminal device.

14. The combined transmission device according to claim 12, characterized in that: The charging cable is received in the groove.

15. The combined transmission device according to claim 10, characterized in that: The first extension part or the second extension part has a wireless charging module, and the wireless charging module is configured to supply power to the terminal device.

16. A combined charging and transmission device, comprising a mobile power source, characterized in that: The combined charging transmission device further comprises a transmission device as claimed in any one of claims 1 to 5 or a combined transmission device as claimed in any one of claims 6 to 15, and the transmission device or the combined transmission device is detachably and electrically connected to the mobile power source.

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