Protective sleeve assembly and electronic device

Abstract

The embodiment of the invention provides a protective sleeve assembly. The protective sleeve assembly comprises a keyboard body, a connecting piece, a first supporting piece and a second supporting piece, the connecting piece is fixed on the keyboard body and is electrically connected with the keyboard body; the first supporting piece is hinged to the second supporting piece, and the second supporting piece is used for being detachably connected with the connecting piece. When the electronic equipment is placed on the protective sleeve assembly, the first supporting piece makes contact with the back face of the electronic equipment, the second supporting piece rotates by a certain angle relative to the first supporting piece and forms an included angle with the back face of the electronic equipment, the connecting piece is located in the included angle, and the connecting piece and the electronic equipment form circuit connection. The back surface of the electronic equipment is opposite to a display screen of the electronic equipment. The embodiment of the invention further provides an electronic device which comprises electronic equipment and the protective sleeve assembly. According to the scheme provided by the embodiment of the invention, the leather sheath keyboard can be connected with the electronic equipment on the premise that the electronic equipment is light and thin.

Description

[0001] This application claims the priority of the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 202310960338.0 and application name “Protective cover assembly and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment accessories, and in particular to a protective cover assembly and an electronic device. Background Art

[0003] Consumer electronic products such as mobile phones and tablets can be used with leather keyboards, so that the devices can be input through the keyboard like laptops. At present, the devices are developing in the direction of ultra-light and thin, and the leather keyboards that match them are connected to the devices through the connectors on the side of the bottom of the devices. As the devices become thinner and thinner, there is not enough space on the side of the bottom of the devices to layout the connectors. Therefore, how to connect the leather keyboard to the device while ensuring the thinness of the device has become an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a protective cover assembly and an electronic device. By connecting the protective cover assembly to the electronic device at the back of the electronic device, the protective cover assembly can be connected to the electronic device while ensuring that the device is light and thin.

[0005] In the first aspect, an embodiment of the present application provides a protective cover assembly for use with an electronic device, the protective cover assembly comprising a keyboard body, a connector, a first support member and a second support member; the connector is fixed to the keyboard body and electrically connected to the keyboard body; the first support member is hinged to the second support member, and the second support member is used to form a detachable connection with the connector; when the electronic device is placed on the protective cover assembly, the first support member contacts the back of the electronic device, the second support member rotates a certain angle relative to the first support member and forms an angle with the back of the electronic device, the connector is located within the angle, and the connector forms a circuit connection with the electronic device, wherein the back of the electronic device is opposite to the display screen of the electronic device.

[0006] In this solution, when the electronic device is placed on the protective cover assembly, the connector connected to the electronic device circuit is located on the back of the electronic device. This back-connected design does not require the electronic device to increase its thickness, which is conducive to making the electronic device thinner and lighter. Through the connector, the protective cover assembly can establish a circuit connection with the electronic device to enable the electronic device to supply power to the protective cover assembly, and / or the electronic device to communicate with the protective cover assembly. This solution provides a keyboard solution that is better compatible with electronic devices and can enhance product competitiveness. When the electronic device is supported on the protective cover assembly, the connector can be hidden between the electronic device and the second support member, and the connector is blocked by the electronic device, so that the user cannot see the connector from the front of the electronic device, thereby improving the aesthetics and user experience.

[0007] In an implementation of the first aspect, the keyboard body has a built-in battery and a wireless communication module, and the wireless communication module is used for wireless communication with the wireless communication module in the electronic device; the connecting piece includes a first wireless coil, and the first wireless coil is electrically connected to the battery; when the electronic device is placed on the protective cover assembly, the first wireless coil is coupled to the electronic device, and the battery is used to receive electrical energy input by the electronic device.

[0008] In this solution, the protective cover assembly is coupled to the electronic device through the first wireless coil, for example, the first wireless coil is coupled to the wireless coil in the electronic device, so that the electronic device can wirelessly charge the battery in the protective cover assembly. By setting a wireless communication module in the protective cover assembly, the protective cover assembly can communicate wirelessly with the electronic device. This solution provides a protective cover assembly that is well compatible with the electronic device, which can improve the competitiveness of the product.

[0009] In an implementation of the first aspect, the first wireless coil includes a conductive coil, a first flexible circuit board, and a nanocrystalline layer, the first flexible circuit board includes a first part and a second part, the first part is connected to the second part, the conductive coil, the first part, and the nanocrystalline layer are stacked in sequence, the conductive coil is electrically connected to the first part, and the second part is electrically connected to the keyboard body. The first wireless coil of this solution has a simple structure, good mass production, and good compatibility with electronic devices.

[0010] In an implementation of the first aspect, the first wireless coil includes a conductive coil, a first flexible circuit board, and a nanocrystalline layer, the first flexible circuit board includes a first part and a second part, the first part is connected to the second part, the conductive coil, the nanocrystalline layer, and the first part are stacked in sequence, the conductive coil is electrically connected to the first part, and the second part is electrically connected to the keyboard body. The first wireless coil of this solution has a simple structure, good assembly performance, and good compatibility with electronic equipment.

[0011] In an implementation of the first aspect, the thickness of the first wireless coil is 0.4 mm-1.0 mm. The first wireless coil of this solution has a relatively small thickness, which is beneficial for reducing the thickness of the circuit connection between the protective cover assembly and the electronic device when the electronic device is positioned on the protective cover assembly and the protective cover assembly is closed, thereby improving the user experience.

[0012] In an implementation of the first aspect, the connector includes a connector, and when the electronic device is placed on the protective cover assembly, the connector forms a circuit connection with the electronic device. In this solution, the protective cover assembly is connected to the electronic device circuit through the connector. For example, the connector can be in electrical contact with the electronic device, so that the electronic device can supply power to the protective cover assembly or communicate with the protective cover assembly. This solution provides a protective cover assembly that is well compatible with the electronic device, which can enhance product competitiveness.

[0013] In an implementation of the first aspect, the connector includes a printed circuit board, a second flexible circuit board and a spring; the second flexible circuit board includes a third part and a fourth part, the third part is connected to the fourth part, the third part is electrically connected to the printed circuit board, and the fourth part is electrically connected to the keyboard body; the spring is welded to the printed circuit board, and the spring is used to achieve electrical contact. This solution provides a specific structure of a connector, which has good adaptability to electronic equipment and good mass production.

[0014] In an implementation of the first aspect, the printed circuit board is provided with a mounting through hole, and the spring piece is installed in the mounting through hole. This broken-board installation method has reliable performance and is conducive to reducing the thickness of the connector.

[0015] In an implementation of the first aspect, the spring sheet includes a base plate, an elastic arm and a contact, the elastic arm and the base plate form a bent structure, there is a gap between the elastic arm and the base plate, the contact is connected to a side of the elastic arm facing away from the base plate, and the contact is used to achieve electrical contact. This solution provides a specific structure of a connector, which has good adaptability to electronic equipment and good mass production.

[0016] In an implementation of the first aspect, when the spring sheet is in a working state, the distance from the surface of the spring arm connected to the contact to the surface of the bottom plate facing away from the spring arm is 0.1 mm to 1.5 mm. The spring sheet of this solution has a relatively small working height, which is beneficial for reducing the thickness of the circuit connection between the protective cover assembly and the electronic device when the electronic device is positioned on the protective cover assembly, thereby improving the user experience.

[0017] In an implementation of the first aspect, the connector further comprises a base and a cover, the cover is connected to the base; a portion of the first wireless coil is located between the cover and the base, and another portion of the first wireless coil is located outside the cover and the base. This solution provides an assembly structure of a connector, which has a reliable structure, good compatibility with electronic equipment, and good mass production.

[0018] In an implementation of the first aspect, the conductive coil in the first wireless coil, the first part of the first flexible circuit board, and the nanocrystalline layer are located between the cover and the base, a portion of the second part of the first flexible circuit board is located between the cover and the base, and another portion of the second part is located outside the cover and the base. This solution provides an assembly structure of a connector, which has a reliable structure, good compatibility with electronic equipment, and good mass production.

[0019] In an implementation of the first aspect, the base is provided with a first receiving groove; the conductive coil in the first wireless coil, the first part of the first flexible circuit board and the nanocrystalline layer are received in the first receiving groove, and the second part of the first flexible circuit board is located outside the first receiving groove. This solution provides an assembly structure of a connector, which has a reliable structure, good adaptability to electronic devices, and good mass production. In addition, by receiving a part of the first wireless coil in the first receiving groove, it is helpful to reduce the stacking thickness of the connector, reduce the thickness of the circuit connection between the protective cover assembly and the electronic device, and improve the user experience.

[0020] In an implementation of the first aspect, the connector further includes a cover plate, which covers the first receiving groove and is located between the base and the cover plate. By designing the cover plate, the first wireless coil can be packaged to ensure that the first wireless coil can work stably and reliably, which is conducive to the assembly of other components.

[0021] In an implementation of the first aspect, the base is provided with a second receiving groove; the cover includes a first cover and a second cover, the first cover is loaded into the second receiving groove, and the second cover covers the first cover and the base; the conductive coil in the first wireless coil, the first part of the first flexible circuit board and the nanocrystalline layer are located between the second cover and the base, and a part of the second part of the first flexible circuit board is located between the second cover and the first cover. This solution provides an assembly structure of a connector, which has a reliable structure, good compatibility with electronic devices, and good mass production. In addition, by loading at least a part of the first cover into the second receiving groove, it is helpful to reduce the stacking thickness of the connector, reduce the thickness of the circuit connection between the protective cover assembly and the electronic device, and improve the user experience.

[0022] In an implementation of the first aspect, the connector further comprises a base and a cover, the cover is connected to the base; a portion of the connector is located between the cover and the base, and another portion of the connector is located outside the cover and the base. This solution provides an assembly structure of a connector, which has a reliable structure, good compatibility with electronic equipment, and good mass production.

[0023] In an implementation of the first aspect, the printed circuit board and the third portion of the second flexible circuit board are located between the cover and the base, a portion of the fourth portion of the second flexible circuit board is located between the cover and the base, another portion of the fourth portion is located outside the cover and the base, the electrical contact portion of the spring is exposed, and the portion of the spring other than the electrical contact portion is located between the cover and the base. This solution provides an assembly structure of a connector, which has a reliable structure, good compatibility with electronic equipment, and good mass production.

[0024] In an implementation of the first aspect, the base is provided with a first receiving groove; the printed circuit board, the third part of the second flexible circuit board and the spring are received in the first receiving groove, and the fourth part of the second flexible circuit board is located outside the first receiving groove. This solution provides an assembly structure of a connector, which has a reliable structure, good adaptability to electronic devices, and good mass production. In addition, by receiving a part of the connector in the first receiving groove, it is helpful to reduce the stacking thickness of the connector, reduce the thickness of the circuit connection between the protective cover assembly and the electronic device, and improve the user experience.

[0025] In an implementation of the first aspect, the base is provided with a second receiving groove; the cover includes a first cover and a second cover, the first cover is loaded into the second receiving groove, and the second cover covers the first cover and the base; the printed circuit board and the third part of the second flexible circuit board are located between the second cover and the base, a part of the fourth part of the second flexible circuit board is located between the second cover and the first cover, another part of the fourth part is located outside the cover and the base, and the part of the spring except the electrical contact part is located between the second cover and the base. This scheme provides an assembly structure of a connector, which has a reliable structure, good adaptability to electronic equipment, and good mass production. In addition, by loading at least a part of the first cover into the second receiving groove, it is beneficial to reduce the stacking thickness of the connector, reduce the thickness of the circuit connection between the protective cover assembly and the electronic device, and improve the user experience.

[0026] In an implementation of the first aspect, the connector further comprises a magnet, and the magnet is located inside the base. By making the connector magnetic, it is convenient to magnetically attract the connector to the electronic device to achieve flexible assembly and disassembly of the protective cover assembly and the electronic device, or to magnetically attract the connector to the second support member to achieve a detachable design of the protective cover assembly.

[0027] In an implementation of the first aspect, the second support member is provided with a receiving groove, and when the second support member is connected to the connecting member, the connecting member is received in the receiving groove. The receiving groove is provided on the second support member, and when the connecting member is received in the receiving groove, the thickness of the connection between the protective cover assembly and the circuit of the electronic device can be reduced, thereby improving the user experience.

[0028] In an implementation of the first aspect, the second support member is complete without a gap, and when the connector is located within the angle formed by the second support member and the back of the electronic device, all areas of the connector are shielded by the second support member. The second support member is designed to be complete without a gap, so that when the electronic device is positioned on the protective cover assembly, the user cannot see the connector at all from the back of the electronic device, thereby improving the user experience.

[0029] In an implementation of the first aspect, the second support member is magnetic, so that the second support member and the connecting member are magnetically attracted to each other, thereby realizing a detachable design of the protective cover assembly.

[0030] In an implementation of the first aspect, the keyboard body includes a key core and a keyboard connection area, and the connecting member, the keyboard connection area and the key core are connected in sequence; the protective cover assembly also includes a first connection structure, a first transmission member and a second connection structure, the first connection structure is arranged on the first support member, the second connection structure is arranged on the second support member, a part of the first transmission member is arranged on the first support member, and the other part is arranged on the second support member, and the first transmission member is connected between the first connection structure and the second connection structure; when the electronic device is placed on the protective cover assembly, the keyboard connection area is located between the electronic device and the second support member, the connecting member and the second support member are detachably connected, the connecting member and the second connection structure form a circuit connection, and the first connection structure forms a circuit connection with the electronic device.

[0031] This solution provides a specific architecture of a protective cover assembly. With this architecture, a back-connection design can be implemented without increasing the thickness of the electronic device, which is conducive to making the electronic device thin and light. Through the connector, the protective cover assembly can establish a circuit connection with the electronic device to enable the electronic device to supply power to the protective cover assembly, and / or the electronic device to communicate with the protective cover assembly. It has good adaptability to electronic devices and can enhance product competitiveness. When the electronic device is supported on the protective cover assembly, the connector can be hidden between the electronic device and the second support member, and the connector is blocked by the electronic device, so that the user cannot see the connector from the front of the electronic device, which improves the aesthetics and user experience.

[0032] In an implementation of the first aspect, the first supporting member includes a first sub-member and a second sub-member, the first sub-member and the second sub-member are stacked and fixedly connected, the second supporting member and the first sub-member are located on the same side of the second sub-member, the second supporting member and the first sub-member are hinged to the first sub-member, and the second supporting member and the second sub-member are not connected; the first connecting structure is provided on the first sub-member, and a part of the first transmission member is provided on the first sub-member; when the electronic device is placed on the protective cover assembly, the side of the second sub-member facing away from the first sub-member contacts the back of the electronic device, and the connecting member is located between the second sub-member and the second supporting member.

[0033] In this solution, the first support component includes the second subcomponent, which can meet the product demand for low thickness of the electronic device and the thickness of the bracket part, and make the strength and rigidity of the first support component better, and the support for the electronic device is more stable and reliable.

[0034] In an implementation of the first aspect, the keyboard body has a built-in battery and a wireless communication module, and the wireless communication module is used for wireless communication with the wireless communication module in the electronic device; the connecting piece includes the contact, the second connection structure is a conductive contact, and the first connection structure is a third wireless coil; when the electronic device is placed on the protective cover assembly, the contact is electrically contacted with the conductive contact, the third wireless coil is coupled and connected to the wireless coil in the electronic device, and the battery is used to receive electrical energy input by the electronic device.

[0035] This solution provides a specific architecture of a protective cover assembly, which can realize a back-connection design. It does not need to increase the thickness of the electronic device, which is conducive to realizing the thinness of the electronic device. Through the connector, the protective cover assembly can establish a circuit connection with the electronic device to realize the charging of the electronic device to the protective cover assembly, and the wireless communication between the electronic device and the protective cover assembly. It has good adaptability to electronic devices and can enhance product competitiveness. When the electronic device is supported on the protective cover assembly, the connector can be hidden between the electronic device and the second support member, and the connector is blocked by the electronic device, so that the user cannot see the connector from the front of the electronic device, which improves the aesthetics and user experience.

[0036] In an implementation of the first aspect, the keyboard body includes a key core and a touch pad, and the connecting member, the key core and the touch pad are connected in sequence; when the electronic device is placed on the protective cover assembly, the connecting member is detachably connected to the back of the electronic device.

[0037] This solution provides a specific architecture of a protective cover assembly. With this architecture, a back-connection design can be implemented without increasing the thickness of the electronic device, which is conducive to making the electronic device thin and light. Through the connector, the protective cover assembly can establish a circuit connection with the electronic device to enable the electronic device to supply power to the protective cover assembly, and / or the electronic device to communicate with the protective cover assembly. It has good adaptability to electronic devices and can enhance product competitiveness. When the electronic device is supported on the protective cover assembly, the connector can be hidden between the electronic device and the second support member, and the connector is blocked by the electronic device, so that the user cannot see the connector from the front of the electronic device, which improves the aesthetics and user experience.

[0038] In an implementation of the first aspect, when the electronic device is placed on the protective cover assembly, the connector contacts the back of the electronic device. The protective cover assembly of this solution has a simple structure, good compatibility with the electronic device, and can improve product competitiveness.

[0039] In an implementation of the first aspect, the first supporting member includes a first sub-member, a second sub-member, a third connecting structure, a second transmission member and a fourth connecting structure; the first sub-member is stacked and fixedly connected with the second sub-member, the second supporting member and the first sub-member are located on the same side of the second sub-member, the second supporting member is hinged to the first sub-member, and the second supporting member and the second sub-member are not connected; the third connecting structure, the second transmission member and the fourth connecting structure are all arranged on the second sub-member, and the second transmission member is connected between the third connecting structure and the fourth connecting structure; when the electronic device is placed on the protective cover assembly, the side of the second sub-member facing away from the first sub-member contacts the back of the electronic device and is detachably connected to the electronic device, the connecting member is located between the second supporting member and the second sub-member and is detachably connected to the second sub-member, the connecting member forms a circuit connection with the fourth connecting structure, and the third connecting structure forms a circuit connection with the electronic device.

[0040] In this solution, the first support component includes the second subcomponent, which can meet the product demand for low thickness of the electronic device and the thickness of the bracket part, and make the strength and rigidity of the first support component better, and the support for the electronic device is more stable and reliable.

[0041] In an implementation of the first aspect, the keyboard body has a built-in battery and a wireless communication module, and the wireless communication module is used for wireless communication with the wireless communication module in the electronic device; the connecting piece includes the contact, the fourth connection structure is a conductive contact, and the third connection structure is a second wireless coil; when the electronic device is placed on the protective cover assembly, the contact is electrically contacted with the conductive contact, the second wireless coil is coupled and connected with the wireless coil in the electronic device, and the battery is used to receive electrical energy input by the electronic device.

[0042] This solution provides a specific architecture of a protective cover assembly, which can realize a back-connection design. It does not need to increase the thickness of the electronic device, which is conducive to realizing the thinness of the electronic device. Through the connector, the protective cover assembly can establish a circuit connection with the electronic device to realize the charging of the electronic device to the protective cover assembly, and the wireless communication between the electronic device and the protective cover assembly. It has good adaptability to electronic devices and can enhance product competitiveness. When the electronic device is supported on the protective cover assembly, the connector can be hidden between the electronic device and the second support member, and the connector is blocked by the electronic device, so that the user cannot see the connector from the front of the electronic device, which improves the aesthetics and user experience.

[0043] In an implementation of the first aspect, the connecting member forms a flexible connection with the keyboard body. When the connecting member is separated from the second supporting member, the connecting member can be bent relative to the keyboard body and be detachably connected to the back side of the keyboard body, wherein the back side of the keyboard body is opposite to a side of the keyboard body on which keys are provided.

[0044] In this solution, when the keyboard part is separated from the bracket part, the connector can be flipped to the back of the keyboard body and detachably connected to the keyboard body, so that the connector can be fixed on the back of the keyboard body, which makes the keyboard part have a more concise and neat appearance. When the user inputs on the keyboard body, the connector can also raise the inclination angle of the keyboard body, which is convenient for the user to input and improves the user experience.

[0045] In a second aspect, an embodiment of the present application provides an electronic device, comprising an electronic device and any one of the protective cover assemblies described above, wherein the electronic device has a display screen and a back side, the display screen is opposite to the back side of the electronic device, the electronic device is used to be placed on the protective cover assembly, the first support member is used to contact the back side of the electronic device, and the connector is used to form a circuit connection with the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic diagram of the assembly structure of the electronic device of the first embodiment of the present application at a viewing angle;

[0047] Figure 2 is a schematic diagram of the assembly structure of the electronic device of Embodiment 1 of the present application from another viewing angle;

[0048] Figure 3 yes Figure 2 A schematic diagram of an exploded structure of an electronic device;

[0049] Figure 4a yes Figure 3 A schematic diagram of an exploded structure of the second support member;

[0050] Figure 4b is a front view structural schematic diagram of a second supporting member in another embodiment;

[0051] Figure 5 yes Figure 3 Schematic diagram of the assembly structure of the connecting parts;

[0052] Figure 6 yes Figure 5 Schematic diagram of the exploded structure of the connector;

[0053] Figure 7 yes Figure 6 A schematic diagram of the structure of the base;

[0054] Figure 8yes Figure 6 A schematic structural diagram of the first wireless coil in FIG.

[0055] Figure 9a yes Figure 8 A schematic diagram of an exploded structure of a first wireless coil in FIG.

[0056] Figure 9b is a schematic structural diagram of a first wireless coil in another embodiment;

[0057] Fig.10 yes Figure 6 A schematic diagram of the assembly structure of the base and the first cover;

[0058] Fig.11 yes Figure 6 A schematic diagram of the assembly structure of the base, the first cover and the first wireless coil;

[0059] Fig.12 yes Figure 6 A schematic diagram of the assembly structure of the base, the first cover, the first wireless coil and the cover plate;

[0060] Fig.13 This is a schematic diagram of the assembly structure of a connector in Embodiment 2 of the present application;

[0061] Fig.14 yes Fig.13 Schematic diagram of the exploded structure of the connector in FIG.

[0062] Fig.15 yes Fig.14 A schematic diagram of the structure of the spring piece of the connector;

[0063] Fig.16 yes Fig.15 A schematic diagram of the structure of the shrapnel in the direction of A;

[0064] Fig.17 yes Fig.15 A schematic diagram of the structure of the shrapnel in another perspective;

[0065] Fig.18 It is a schematic structural diagram of another spring piece of a connector in the second embodiment of the present application;

[0066] Fig.19 yes Fig.18 Schematic diagram of the assembly structure of the spring and the printed circuit board;

[0067] Fig. 20 is a schematic diagram of the assembly structure of the protective cover assembly of the first embodiment of the present application at a viewing angle;

[0068] Fig.21 is a schematic diagram of the assembly structure of the protective cover assembly of the first embodiment of the present application from another viewing angle;

[0069] Fig. 22 yes Fig.21 A schematic diagram of the exploded structure of the protective cover assembly;

[0070] Fig.23 A schematic diagram of a top view of the structure of the second sub-component in an embodiment of the present application;

[0071] Fig.24 is a schematic diagram of the assembly structure of the electronic device of the fourth embodiment of the present application;

[0072] Fig.25 yes Fig.24 A schematic top view of the assembly structure of the first support member, the second support member, the third connection structure, the second transmission member and the fourth connection structure of the protective cover assembly;

[0073] Fig.26 yes Fig.25 A schematic diagram of an exploded structure of the first support member, the second support member and the fourth connecting structure;

[0074] Fig. 27 is a schematic diagram of the assembly structure of the protective cover assembly of the fifth embodiment of the present application;

[0075] Fig.28 yes Fig. 27 A schematic diagram of the exploded structure of the bracket part of the protective cover assembly;

[0076] Fig.29 It is a structural schematic diagram of a view from which the connecting member in the embodiment of the present application is flipped to the back of the keyboard body and is detachably connected to the keyboard body;

[0077] Fig.30 It is a structural schematic diagram from another perspective in which the connecting member in the embodiment of the present application is flipped to the back of the keyboard body and is detachably connected to the keyboard body. DETAILED DESCRIPTION

[0078] For ease of understanding, the relevant technical terms involved in the embodiments of the present application are explained and described below.

[0079] In the description of the embodiments of the present application, unless otherwise specified, "plurality" refers to two or more.

[0080] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Features qualified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0081] "Connection" should be understood in a broad sense. "Connection" can refer to mechanical connection, which can include detachable connection and non-detachable connection, and can include direct connection and indirect connection through an intermediate medium. "Connection" can also refer to circuit connection in the electrical sense, which can include electrical connection, that is, the connection between different components in the circuit structure through a physical line that can transmit electrical signals (such as a wire or copper foil on a printed circuit board, etc.), and there is physical contact between the electrically connected components. Electrically connected elements can be non-detachable, such as the electrical connection between a circuit board and the components soldered thereon; electrically connected elements can also be detachable, such as the electrical contact between contacts and contacts. Circuit connection can also include coupled connection, that is, there is electrical coupling between different components, there is no physical medium between the components, and there is no physical contact.

[0082] “Fixation” should also be understood in a broad sense. For example, “fixation” can be direct fixation or indirect fixation through an intermediate medium.

[0083] The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", "back", "front", etc., are only reference directions of the drawings. The directional terms are for better and clearer explanation and understanding of the embodiments of the present application, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, etc., and therefore cannot be understood as limiting the embodiments of the present application.

[0084] In the description of the embodiments of the present application, unless otherwise specified, "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0085] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0086] like Figure 1 , Figure 2 and Figure 3 As shown, the first embodiment provides an electronic device 1, which may include a protective cover assembly 2 and an electronic device 5. The electronic device 5 may be supported on the protective cover assembly 2 and form a circuit connection with the protective cover assembly 2, and the user may input on the electronic device 5 through the keyboard of the protective cover assembly 2. The user may also remove the electronic device 5 from the protective cover assembly 2.

[0087] like Figure 1-Figure 3 As shown, the electronic device 5 may have a plate-like appearance structure, and the electronic device 5 includes but is not limited to electronic products such as tablet computers and mobile phones. A display screen 51 may be provided on the front of the electronic device 5 , and its back side 5a is provided opposite to the display screen 51 .

[0088] like Figure 1-Figure 3 As shown, the protective cover assembly 2 may include a bracket portion 3 and a keyboard portion 4, which may be connected together or separated, that is, the protective cover assembly 2 has a fractional design. The bracket portion 3 may position and support the electronic device 5, and the keyboard portion 4 may be connected to the electronic device 5 circuit. Each of these will be described below.

[0089] like Figure 1-Figure 3 As shown, the bracket part 3 may include a first support member 31, a rotating shaft 32 and a second support member 33. The rotating shaft 32 connects the first support member 31 and the second support member 33, and the first support member 31 and the second support member 33 are hinged through the rotating shaft 32. In other embodiments, the rotating shaft 32 may not be provided, and the first support member 31 and the second support member 33 are directly rotatably connected.

[0090] like Figure 1 As shown, the first support member 31 may be substantially in the shape of a plate. The first support member 31 may be magnetic, for example, it may have a built-in magnet, and the first support member 31 may be magnetically attracted to the magnet in the electronic device 5; and / or, the edge of the first support member 31 may be provided with a holding structure, such as a buckle or a claw, and the first support member 31 may be engaged with the electronic device 5.

[0091] like Figure 3 and Figure 4a As shown, the second support member 33 may include a body 331 , and the body 331 may be substantially in the shape of a plate.

[0092] like Figure 3 and Figure 4a As shown, a receiving groove 33a can be provided at the edge of the body 331. The receiving groove 33a is used to receive the connecting member 41 (described below) when the second supporting member 33 is attached to the connecting member 41 in the keyboard portion 4.

[0093] like Figure 4aAs shown, the second support member 33 may also include a cover member 332, which may be roughly in the shape of a flat sheet, and the cover member 332 may be made of, for example, mylar material. The cover member 332 may be installed in the receiving groove 33a, and the cover member 332 may be close to the bottom wall of the receiving groove 33a, and the cover member 332 only occupies part of the space near the bottom wall of the receiving groove 33a. The inner wall of the receiving groove 33a may have textures, color differences and other bad appearance effects formed during processing, and the cover member 332 may cover these bad appearance effects and play a decorative role. In some embodiments, the cover member 332 may be made of materials such as stainless iron, and the cover member 332 may be magnetic so that the second support member 33 and the connector 41 in the keyboard part 4 are magnetically attracted. In some embodiments, the magnetic force between the cover member 332 and the connector 41 is less than the magnetic force between the connector 41 and the electronic device 5 (which will be described below). It is understandable that the design of the cover member 332 having magnetic properties is not necessary. In other embodiments, the covering member 332 may be eliminated, or the covering member 332 and the receiving groove 33a may be eliminated. Figure 4b The second support member 33 in other embodiments is shown, the cover member 332 and the receiving groove 33a are removed from the second support member 33, and the second support member 33 may be provided with a notch 33b that penetrates the second support member 33 along the thickness direction, and the number of the notch 33b may be at least one, for example Figure 4b Two are indicated.

[0094] like Figure 1 and Figure 2 As shown, the second support member 33 can rotate at a certain angle relative to the first support member 31 and be supported on a table (e.g., a desktop), so that the bracket portion 3 is in a supporting state. At this time, the back side 5a of the electronic device 5 can be placed on the first support member 31, and the second support member 33 and the back side 5a can form an angle a, so that the bracket portion 3 can position and support the electronic device 5. Since the second support member 33 can rotate continuously, the angle a can change continuously. The embodiment of the present application does not limit the value of the angle a.

[0095] like Figure 3 As shown, the keyboard part 4 may include a connecting member 41 and a keyboard body 42 , and the connecting member 41 may be fixedly connected to the edge of the keyboard body 42 .

[0096] like Figure 3As shown, the keyboard body 42 may include a key core 421 and a touch pad 422, and the connector 41, the key core 421 and the touch pad 422 may be connected in sequence. The key core 421 may include a plurality of keys, and the touch pad 422 is used for touch input by the user. The keyboard body 42 may also include a built-in battery and a wireless communication module. The battery can store electrical energy and supply power to the wireless communication module. The wireless communication module is used to wirelessly communicate with the electronic device 5 to input the user's operations on the keyboard body 42 into the electronic device 5. The wireless communication module includes but is not limited to a Bluetooth module, a wifi module, an infrared (IR) module, etc.

[0097] like Figure 1 and Figure 3 As shown, the connector 41 is used to magnetically attract the back surface 5a of the electronic device 5 and realize the circuit connection between the keyboard body 42 and the electronic device 5 (to be described below). When the second support member 33 rotates to fit the back surface 5a of the electronic device 5, the connector 41 can be accommodated in the receiving groove 33a of the second support member 33, so that the bracket part 3 can be flattened and the thickness of the protective cover assembly 2 at the connector 41 is small, which is conducive to improving the user experience.

[0098] like Figure 5 and Figure 6 As shown, the connecting member 41 may include a base 411, a plurality of magnets 413, a first wireless coil 414, a cover plate 415 and a cover member 412. Each of them will be described below.

[0099] like Figure 7 As shown, the base 411 may be roughly a long plate-like structure. The local surface of the base 411 may be recessed to form a first receiving groove 411a and a second receiving groove 411b. The first receiving groove 411a may be a rectangular stepped groove, and the second receiving groove 411b may be a relatively slender special-shaped groove. Several cavities 411c may also be formed inside the base 411, and each cavity 411c may accommodate at least one magnet 413. It is understandable that the above structure of the base 411 is merely a schematic and is not a limitation on the embodiments of the present application. For example, the first receiving groove 411a and / or the second receiving groove 411b may not be provided; the cavity 411c may not be formed inside the base 411, but the local surface of the base 411 may be recessed to form a groove to accommodate the magnet 413, or a wall may be protruded on the surface of the base 411 to fix the magnet 413.

[0100] Figure 8 is a schematic diagram of the assembly structure of the first wireless coil 414, Figure 9a yes Figure 8 The exploded structural diagram of the first wireless coil 414 is shown in FIG. Figure 8 and Figure 9aAs shown, the first wireless coil 414 may include a conductive coil 414a, a first adhesive layer 414b, a first flexible circuit board 414c, a nanocrystalline layer 414f, and a second adhesive layer 414g.

[0101] like Figure 9a As shown, the first flexible circuit board 414c may include a first portion 414d and a second portion 414e connected to each other, and the first portion 414d and the second portion 414e may approximately form a T-shaped structure. The outer layer of the first flexible circuit board 414c may be a flexible material, such as polyurethane (PU) or non-woven fabric.

[0102] like Figure 9a As shown, the wire coil 414a, the first adhesive layer 414b, the first portion 414d, the nanocrystalline layer 414f and the second adhesive layer 414g can be stacked in sequence, wherein the first adhesive layer 414b bonds the wire coil 414a and the first portion 414d, and one side of the second adhesive layer 414g bonds with the nanocrystalline layer 414f. Figure 9a and Figure 6 As shown, the other side of the second adhesive layer 414g can be bonded to the inner wall of the first receiving groove 411a of the base 411 (described below). The stacked structure including the wire coil 414a, the first adhesive layer 414b, the first portion 414d, the nanocrystalline layer 414f and the second adhesive layer 414g can be referred to as a head 414h. The second portion 414e can be located outside the head 414h, and the second portion 414e can be electrically connected to the keyboard body 42.

[0103] The conductor coil 414a is a coil wound by a wire, and the number of turns can be determined as needed. The wire includes but is not limited to copper wire. Both ends of the wire in the conductor coil 414a can be electrically connected to the first part 414d. The bare wire diameter of the conductor coil 414a can be about 0.16 mm, and the finished wire diameter can be about 0.18 mm.

[0104] The nanocrystalline layer 414f is a layer containing nanocrystalline materials, and the nanocrystalline materials include but are not limited to ferrite. Schematically, the nanocrystalline layer 414f may include several layers of nanocrystalline materials and several layers of double-sided tape, wherein the nanocrystalline materials and the double-sided tape may be alternately stacked. The two opposite outer sides of the nanocrystalline layer 414f may be single-sided tape, and the single-sided tape on the two outer sides may respectively realize the bonding of the nanocrystalline layer 414f to the first part 414d and the bonding of the nanocrystalline layer 414f to the second adhesive layer 414g. Schematically, the nanocrystalline layer 414f may have such a stacked structure: single-sided tape-double-sided tape-nanocrystalline material-double-sided tape-nanocrystalline material...double-sided tape-single-sided tape. The nanocrystalline layer 414f is used to concentrate energy on one side of the conductive coil 414a (for example Figure 9a ) for transmission and reception, and blocks energy on the opposite side (e.g. Figure 9a The lower side of the transmission and reception).

[0105] In this embodiment, when the connector 41 is magnetically attracted to the back surface 5 a of the electronic device 5 , the first wireless coil 414 can be coupled and connected with the wireless coil in the electronic device 5 , so that the electronic device 5 can wirelessly charge the battery built into the keyboard body 42 .

[0106] Table 2 below shows Figure 9a The specific composition of each layer in the first wireless coil 414, and the stacking thickness of the head 414h of the first wireless coil 414. The thickness control value can be 0.63mm±0.05mm; the welding height can be no more than 0.36mm, and the Haba welding process can be used.

[0107] Table 1: Stacking thickness of the head 414h of the first wireless coil 414

[0108] In this embodiment, the thickest part of the first wireless coil 414 is at the head 414 h , but as shown in Table 1, its thickness is only about 0.6 mm, so the first wireless coil 414 is extremely thin, which is conducive to reducing the thickness of the connector 41 .

[0109] The above structure of the first wireless coil 414 is merely an example and is not a limitation to the embodiments of the present application.

[0110] and Figure 9a Different from the first wireless coil 414 shown, in another embodiment, as Figure 9b As shown, the conductive coil 414a and the nanocrystalline layer 414f can be arranged on the same side of the first portion 414d of the first flexible circuit board 414c, and the conductive coil 414a, the nanocrystalline layer 414f and the first portion 414d can be stacked in sequence. It can be understood that Figure 9b Only the key structures such as the conductive coil 414a, the nanocrystalline layer 414f and the first flexible circuit board 414c are shown in the figure. In fact, the first wireless coil 414 may also include other laminated layers such as a glue layer. Figure 9a The first wireless coil 414 shown in FIG. 1 is used as an example for explanation. It can be understood that the following description is also applicable to Figure 9b shown.

[0111] In another embodiment, the first wireless coil may not include a wire coil wound by a wire, but may be an FPC (flexible printed circuit) wireless coil. The maximum thickness of such a first wireless coil is extremely small, for example, may be between 0.4 mm and 1.0 mm.

[0112] like Figure 6 As shown, the cover plate 415 may be in a sheet shape, and may be made of insulating materials such as glass fiber.

[0113] like Figure 6 As shown, the cover 412 may include a first cover 412a and a second cover 412b, both of which may be sheet-like structures and may be made of flexible materials, including but not limited to polyurethane, non-woven fabrics, etc. The structures of the first cover 412a and the second cover 412b may be designed as required, and this embodiment does not limit this. In this embodiment, two cover members, the first cover 412a and the second cover 412b, are provided. In other embodiments, a single cover may be used to replace the first cover 412a and the second cover 412b.

[0114] Next, the assembly structure of each component in the connecting member 41 will be described.

[0115] Fig.10 41 shows the assembly structure of the first cover 412a and the base 411. Fig.10 and Figure 6 As shown, the first covering member 412a can be installed in the second receiving groove 411b of the base 411. Schematically, a portion of the first covering member 412a can be located in the second receiving groove 411b, and another portion can be located outside the second receiving groove 411b.

[0116] Fig.11 Indicates based on Fig.10 The assembly structure shown in the figure is to mount the first wireless coil 414 to the base 411. Fig.11 and Figure 9a As shown, the head 414h of the first wireless coil 414 can be installed in the first receiving groove 411a of the base 411. The second adhesive layer 414g can be bonded to the bottom wall of the first receiving groove 411a, and the conductive coil 414a can face out of the first receiving groove 411a; the second part 414e of the first flexible circuit board 414c of the first wireless coil 414 can be located outside the first receiving groove 411a and on the first cover 412a, that is, the first cover 412a can be sandwiched between the base 411 and the second part 414e.

[0117] Fig.12 Indicates based on Fig.11 The assembly structure shown is to mount the cover 415 to the base 411. Fig.12 and Fig.11As shown, the cover plate 415 can be installed in the first receiving groove 411a on the base 411 and cover the opening of the first receiving groove 411a. The cover plate 415 can encapsulate the head 414h of the first wireless coil 414 in the first receiving groove 411a to fix and protect the head 414h. It can be understood that in other embodiments, the cover plate 415 can be eliminated.

[0118] Combination Fig.12 and Figure 5 As shown, the second cover 412b can cover the cover plate 415, the base 411, the first cover 412a and the second part 414e, and the covering refers to covering at least one part. For example, the second cover 412b completely covers the cover plate 415 and the base 411, the second cover 412b can cover at least a part of the first cover 412a, the second cover 412b can cover a part of the second part 414e of the first flexible circuit board 414c, and another part of the second part 414e is located outside the second cover 412b and is electrically connected to the keyboard body 42.

[0119] As described above, when the second support member 33 is rotated to fit with the back surface 5a of the electronic device 5, the connecting member 41 can be received in the receiving groove 33a of the second support member 33. Figure 5 and Figure 2 As shown, the base 411 of the connector 41 may face the inside of the receiving groove 33a, and the second cover 412b of the connector 41 may face the outside of the receiving groove 33a. In this embodiment, the thickness of the second support member 33 and the connector 41 can be stacked to ensure that the thickness of the protective cover assembly 2 at the connector 41 is relatively small. Table 2 can illustrate the stacking thickness from the bottom wall of the receiving groove 33a to the second cover 412b, wherein, since the thickness of the first receiving groove 411a in the connector 41 is relatively large, the influence on the stacking thickness is relatively large, and therefore Table 2 lists the thickness of the components or parts corresponding to the first receiving groove 411a from the bottom wall of the receiving groove 33a to the second cover 412b.

[0120]

[0121]

[0122] Table 2: Stacking thickness from the second support member 33 to the connecting member 41

[0123] It can be seen from Table 2 that after the above-mentioned thickness stacking, when the second support member 33 is rotated to fit with the back side 5a of the electronic device 5 and the connecting member 41 is received in the receiving groove 33a of the second support member 33, the total thickness from the second support member 33 to the connecting member 41 is only 2.2 mm, so that the thickness of the circuit connection between the protective cover assembly 2 and the electronic device 5 is extremely small, which can improve the user experience.

[0124] The following will describe the usage of the protective cover assembly 2 and the electronic device 5 of this embodiment.

[0125] refer to Figure 1 As shown, the user can fit the first support member 31 with the back side 5a of the electronic device 5 so that the first support member 31 and the electronic device 5 are magnetically attracted or snapped together, and rotate the second support member 33 to a certain angle so that the second support member 33 is supported on the table. The user can fit the back side 5a of the electronic device 5 with the connector 41 so that the back side 5a and the connector 41 are magnetically attracted. In other embodiments, the connector 41 may be provided with a structural feature, or both the connector 41 and the electronic device 5 may be provided with a structural feature, and the structural feature includes but is not limited to a claw, or a combination of a buckle and a slot, through which the connector 41 and the back side 5a can be detachably connected. In this embodiment, the detachable connection between the connector 41 and the back side 5a can be achieved by at least one of a magnet and a structural feature.

[0126] In this embodiment, when the back surface 5a of the electronic device 5 is detachably connected to the connector 41, the electronic device 5 can be coupled and connected to the connector 41. Thus, the electronic device 5 can be supported and positioned by the bracket portion 3, and when the battery in the keyboard body 42 needs to be charged, the electronic device 5 can wirelessly charge the battery through the first wireless coil 414 in the connector 41. The keyboard body 42 and the electronic device 5 can communicate wirelessly, and the wireless communication can be performed after the electronic device 5 is positioned in the protective cover assembly 2, or when the electronic device 5 is separated from the protective cover assembly 2, which is not limited in this embodiment.

[0127] refer to Figure 1 and Figure 2 As shown, when the electronic device 5 is positioned on the protective cover assembly 2, if the user wants to fold and close the protective cover assembly 2, the user can flip the electronic device 5 toward the keyboard body 42, and the electronic device 5 will drive the connecting member 41 to bend. The user can flip the second support member 33 toward the electronic device 5 so that the second support member 33 fits the back 5a of the electronic device 5. At this time, the connecting member 41 will be accommodated in the receiving groove 33a of the second support member 33, so that the bracket part 3 can be flattened and the thickness of the protective cover assembly 2 at the connecting member 41 is small, which is conducive to improving the user experience. As an example, at this time, the magnet in the connecting member 41 can be magnetically attracted to the covering member 332 in the second support member 33. In other embodiments, a structural feature (including but not limited to a combination of a buckle and a slot, Velcro, etc.) can be set on the connecting member 41 and / or the second support member 33, and the connecting member 41 and the second support member 33 are detachably connected through the structural feature. In this embodiment, the detachable connection between the connecting member 41 and the second support member 33 can be achieved by at least one of the magnet and the structural feature.

[0128] When the protective cover assembly 2 is folded and closed, the user can unfold the protective cover assembly 2 again and rotate the second support member 33 to form an angle a with the electronic device 5, so that the bracket part 3 enters a supporting state. In order to prevent the second support member 33 from pulling the connecting member 41 away from the electronic device 5 when rotating, the magnetic force between the second support member 33 and the connecting member 41 can be smaller than the magnetic force between the connecting member 41 and the electronic device 5.

[0129] In addition to the above usage, refer to Figure 1 As shown, the user can also fold the first support member 31 to support it on the table, so that the second support member 33 fits the back side 5a of the electronic device 5, and the connecting member 41 is accommodated in the receiving groove 33a of the second support member 33, so that the protective cover assembly 2 can also support the electronic device 5.

[0130] The solution of the first embodiment can be applied to a keyboard solution including a touchpad. In this embodiment, when the electronic device 5 is placed on the protective cover assembly 2, the connector 41 connected to the circuit of the electronic device 5 is located on the back 5a of the electronic device 5. This back-connection design does not require the electronic device 5 to increase its thickness, which is conducive to achieving the thinness of the electronic device 5. By designing the specific structure of the connector 41, a keyboard solution with good adaptability to the electronic device 5, mature structure, and good mass production is provided, which can enhance the competitiveness of the product. By using an ultra-thin wireless coil, providing a receiving groove 33a on the second support member 33, and stacking the thickness of the second support member 33 and the connector 41, when the electronic device 5 is positioned on the protective cover assembly 2 and the protective cover assembly 2 is closed, the thickness of the circuit connection between the protective cover assembly 2 and the electronic device 5 can be greatly reduced (for example, it can be at least thinned by about 1 mm compared to the conventional solution), thereby enhancing the user experience. When the electronic device 5 is placed on the protective cover assembly 2 and the bracket part 3 is in a supporting state, the connector 41 is hidden between the electronic device 5 and the second support member 33, and the connector 41 is completely blocked by the electronic device 5 and the second support member 33, so that the user cannot see the connector 41 from the front of the electronic device 5 and the side where the second support member 33 is located, thereby improving the aesthetics and user experience. In addition, the bracket part 3 and the keyboard part 4 are detachable, which can meet the needs of users who only use the bracket part 3 or the keyboard part 4. The protective cover assembly 2 has fewer parts, a simple structure, is relatively light, and has a low cost.

[0131] The first wireless coil 414 is used in the connector 41 of the first embodiment, and is coupled to the electronic device 5 through the first wireless coil 414. Different from this, the connector of the second embodiment uses a connector to replace the first wireless coil 414, and the connector can be in electrical contact with the electronic device 5 to achieve electrical connection with the electronic device 5. This will be described in detail below.

[0132] like Fig.13 and Fig.14 As shown, in an implementation of the second embodiment, the connecting member may include a connector 6. The connector 6 may include a printed circuit board 62, a second flexible circuit board 63 and a spring 61.

[0133] like Fig.14 As shown, the printed circuit board 62 can be called a "broken board type circuit board", and the printed circuit board 62 can be hollowed out to form a mounting through hole 62b, and a plurality of connecting through holes 62a can be opened around the mounting through hole 62b.

[0134] like Fig.13 and Fig.14 As shown, schematically, two spring sheets 61 may be provided, and the two spring sheets 61 may be located in the mounting through hole 62b, and the two spring sheets 61 may be arranged in a mirror image, for example. In other embodiments, the number of the spring sheets may be at least two, for example, three.

[0135] Figure 15-17 They are schematic diagrams of the structure of the spring piece 61 at different viewing angles. Figure 15-17 As shown, the spring piece 61 may include a bottom plate 611, which may be substantially in the shape of a flat plate, and its edge may be bent and connected to a plurality of welding legs 612. Fig.15 and Fig.14 As shown, a welding foot 612 can be welded in a connecting through hole 62a. Both sides of the bottom plate 611 can be protruded with a limiting side wall 613, which can have a bent shape, and the limiting side walls 613 on both sides and the bottom plate 611 can roughly form a C-shaped structure.

[0136] like Figure 15-17 As shown, the spring piece 61 may also include an elastic arm 614, which is connected to the bottom plate 611 and forms a bent structure. The elastic arm 614 may include an elastic portion 614a, a contact portion 614b and an elastic portion 614c connected in sequence. Among them, the elastic portion 614a may be bent and connected to the bottom plate 611, the elastic portion 614a and the elastic portion 614c may be roughly symmetrically distributed on opposite sides of the contact portion 614b, the elastic portion 614a and the elastic portion 614c may be inclined to the bottom plate 611, the contact portion 614b may be approximately parallel to the bottom plate 611, and there is a gap between the elastic portion 614a, the contact portion 614b and the elastic portion 614c and the bottom plate 611, and the gap facilitates the elastic arm 614 to be elastically deformed downward. The spring piece 61 of this embodiment has two elastic regions, the elastic portion 614a and the elastic portion 614c, which can provide a large elastic force.

[0137] like Figure 15-17As shown, the spring 61 may further include a contact 615, which may be connected to the side of the contact portion 614b facing away from the bottom plate 611. The contact 615 may be plated with a metal layer to resist corrosion and oxidation, such as gold, platinum, nickel, silver, etc.

[0138] like Fig.15 and Fig.17 As shown, the spring piece 61 may further include a limiting portion 616, and the limiting portion 616 may be connected to the side of the elastic portion 614c facing away from the elastic portion 614a. The limiting portion 616 may be located between the two limiting side walls 613, and the opposite sides of the limiting portion 616 may be bent and respectively maintain a certain gap or contact with the inner surfaces of the two limiting side walls 613. The flat portion of the limiting portion 616 may maintain a certain gap or contact with the bottom plate 611. Thus, the limiting portion 616 will be limited by the two limiting side walls 613 and the bottom plate 611, and the limiting portion 616 can basically only move along the length direction of the limiting side walls 613, and basically cannot move along other directions.

[0139] In this embodiment, the spring 61 can be considered as a pogo pin. Fig.16 As shown, the distance from the surface where the contact part 614b is connected to the contact 615 to the surface of the bottom plate 611 facing away from the contact part 614b can be defined as h. When the spring 61 is in a free state without pressure, h is the free height of the spring 61, and the free height can be, for example, 0.6mm-1.5mm. When the contact 615 is pressed, it will move downward, and the downward stroke of the contact 615 (or the stroke of the spring 61) can be, for example, 0mm-0.5mm. After completing the stroke, h is the working height of the spring 61, and the working height can be, for example, 0.1mm-1.5mm. Schematically, the working height can be 0.8mm. Compared with the working height of the traditional pogo pin of 1.6mm, the spring 61 of this embodiment has a smaller working height, which is conducive to making the spring 61 and the entire connector thinner.

[0140] The material of the spring piece 61 of this embodiment can be a copper substrate. The spring piece 61 can flow a large current of more than 4A and has a life of more than 20,000 times.

[0141] The outer layer of the second flexible circuit board 63 can be made of a flexible material, such as polyurethane or non-woven fabric. Fig.13 and Fig.14 As shown, the second flexible circuit board 63 may include a third part 63a and a fourth part 63b connected to each other, the third part 63a is electrically connected to the printed circuit board 62, the third part 63a, the printed circuit board 62 and the spring 61 installed on the printed circuit board 62 may constitute the head 6h of the connector 6, and the fourth part 63b may be located outside the head 6h. The fourth part 63b may be electrically connected to the keyboard body.

[0142] like Fig.18 As shown, in another implementation of the second embodiment, the spring piece 71 of the connector may include a bottom plate 711, a solder foot 712, an elastic arm 714 and a contact 715. Different from the previous implementation, the elastic arm 714 of the spring piece 71 has an elastic area, which can provide a smaller elastic force, such as an elastic force of 100g.

[0143] Fig.19 The schematic diagram of the assembly structure of the spring 71 and the printed circuit board 72 is shown, wherein the solder pin 712 of the spring 71 can be soldered to the connecting through hole of the printed circuit board 72. Schematically, the connector can have three springs 71, and thus can have three contacts 715.

[0144] In the second embodiment, the connector may include at least two spring sheets and have at least two contacts.

[0145] The following uses the connector 6 in the second embodiment as an example to illustrate the assembly structure of the connector in the second embodiment and other components in the connector. It can be understood that the following description is applicable to any connector in the second embodiment.

[0146] In Example 2, reference Fig.13 and Figure 6 As shown, the head 6h of the connector 6 can be installed in the first receiving groove 411a of the base 411, and the contact 615 can face the outside of the first receiving groove 411a. Accordingly, the cover plate 415 and the second cover member 412b can be opened to allow the contact 615 to pass through and be exposed.

[0147] In the second embodiment, when the back side 5a of the electronic device 5 is attached to the connector, the contact piece provided on the back side 5a is in electrical contact with the contact 615, thereby electrically connecting the connector to the electronic device 5. The connector in the second embodiment can be used for transmitting signals as well as for transmitting electrical energy. The keyboard body in the second embodiment may not need a built-in battery and a wireless communication module. When the connector is electrically connected to the electronic device 5, the electronic device 5 may supply power to the keyboard body, so that the keyboard body and the electronic device 5 can communicate by wire. Alternatively, the keyboard body in the second embodiment may also have a built-in battery and a wireless communication module. When the connector is electrically connected to the electronic device 5, the electronic device 5 may charge the battery in the keyboard body, and the battery may supply power to the wireless communication module, and wireless communication between the keyboard body and the electronic device 5 may be achieved through the wireless communication module.

[0148] Figure 20-Figure 22 Schematic structure of the protective cover assembly 20 of the third embodiment. Figure 20-23As shown, similar to the above embodiment, the protective cover assembly 20 may include a bracket portion 21 and a keyboard portion 4. The bracket portion 21 may include a first support member 22 and a second support member 33, and the first support member 22 and the second support member 33 are hinged. The keyboard portion 4 may include a keyboard body 42 and a connector 41, and the keyboard body 42 may include a key core 421 and a touch pad 422 connected to each other, and the connector 41, the key core 421 and the touch pad 422 are connected in sequence. Schematically, the connector 41 may include a connector.

[0149] Different from the above embodiment, Figure 20-Figure 22 As shown, the first support member 22 of the third embodiment may include a first sub-member 221 and a second sub-member 222. Both the first sub-member 221 and the second sub-member 222 may be plate-shaped and may be stacked. The area of ​​the first sub-member 221 may be smaller than the area of ​​the second sub-member 222. The first sub-member 221 may cover the upper region of the second sub-member 222, and the lower region of the second sub-member 222 may exceed the boundary of the first sub-member 221. The first sub-member 221 and the second sub-member 222 may be fixedly connected, for example, by bonding.

[0150] The second sub-component 222 may be magnetic, for example, it may have a built-in magnet; and / or, the edge of the second sub-component 222 may be provided with a holding structure, such as a buckle or a claw.

[0151] like Fig. 20 As shown, the second support member 33 is hinged to the first sub-member 221, and the second support member 33 and the first sub-member 221 are located on the same side of the second sub-member 222. When the second support member 33 rotates to be parallel to the first sub-member 221, the second support member 33 can basically cover the lower area of ​​the second sub-member 222.

[0152] like Fig.21 and Fig. 22 As shown, the first supporting member 22 of the third embodiment may also include a connecting structure 223 (which may be referred to as a third connecting structure 223), a transmission member 224 (which may be referred to as a second transmission member 224) and a connecting structure 225 (which may be referred to as a fourth connecting structure 225), the connecting structure 223, the transmission member 224 and the connecting structure 225 are all arranged on the second sub-member 222, and the transmission member 224 is connected between the connecting structure 223 and the connecting structure 225.

[0153] Schematically, the connection structure 223 can be a wireless coil (in this case, the connection structure 223 can be referred to as a second wireless coil), which is used to couple with an electronic device so that the electronic device can wirelessly charge the battery in the keyboard body 42 (to be described below). The wireless coil can be the first wireless coil 414 described above, or any other suitable wireless coil, which is not limited in this embodiment. In another embodiment, the connection structure 223 can also be a connector, which is used to electrically contact with an electronic device so that the electronic device can charge the battery in the keyboard body 42; or, to enable the electronic device 5 to supply power to the keyboard body so that the keyboard body and the electronic device 5 can communicate by wire (to be described below). The connector can be the connector in the above embodiment (such as connector 6), or any other suitable connector, which is not limited in this embodiment. Schematically, when the connection structure 223 is a wireless coil, the connection structure 223 can be buried in the second sub-component 222; when the connection structure 223 is a connector, most of the connection structure 223 can be hidden in the second sub-component 222, and the contact of the connection structure 223 can be exposed on the surface of the second sub-component 222.

[0154] Schematically, the transmission component 224 may be an FPC or a cable, and the transmission component 224 connects the connection structure 223 and the connection structure 225. Schematically, the transmission component 224 may be buried in the second sub-component 222.

[0155] Schematically, the connection structure 225 can be a conductive contact, such as a contact made of copper or other materials. The conductive contact is used to electrically contact the connector in the connector 41. In another embodiment, the connection structure 225 can be any component that can achieve circuit connection, including but not limited to a connector (electrically contacting the connector in the connector 41), a wireless coil (in this embodiment, the connector 41 includes a first wireless coil 414, and the connection structure 225 is coupled to the first wireless coil 414), etc. Schematically, when the connection structure 225 is a conductive contact, the connection structure 225 can be exposed outside the second sub-component 222; when the connection structure 225 is a connector, most of the connection structure 225 can be hidden in the second sub-component 222, and the contact of the connection structure 225 can be exposed on the surface of the second sub-component 222; when the connection structure 225 is a wireless coil, the connection structure 225 can be buried in the second sub-component 222.

[0156] The following will describe how the protective cover assembly 20 of this embodiment is used in conjunction with an electronic device.

[0157] refer to Figure 20-Figure 22As shown, the user can rotate the second support member 33 to a certain angle so that the second support member 33 is supported on the table, and an angle b is formed between the second support member 33 and the second sub-member 222. Exemplarily, the user can magnetically attract the second sub-member 222 to the connector 41. In other embodiments, structural features (including but not limited to a combination of buckles and slots, Velcro, etc.) can be provided on the connector 41 and / or the second sub-member 222, and the connector 41 and the second sub-member 222 are detachably connected through the structural features. In this embodiment, the detachable connection between the connector 41 and the second sub-member 222 can be achieved by at least one of a magnet and a structural feature.

[0158] When the second sub-component 222 is detachably connected to the connecting member 41, the connecting member 41 is located between the second sub-component 222 and the second supporting member 33, and the connecting member 41 is electrically contacted or coupled to the connecting structure 225. Then, the user can place the back of the electronic device on the second sub-component 222, and the second sub-component 222 can be magnetically attracted and / or snapped to the electronic device. In this way, the electronic device can be supported and positioned on the protective cover assembly 20, and establish a circuit connection with the keyboard body 42.

[0159] If the keyboard body 42 has a built-in battery and a wireless communication module, the battery can supply power to the wireless communication module. At this time, the electronic device and the connecting structure 223 are coupled or electrically contacted, and the connecting structure 225 and the connecting member 41 can be electrically contacted or coupled. When the battery needs to be charged, the electric energy output by the electronic device can be stored in the battery through the connecting structure 223, the transmission member 224, the connecting structure 225 and the connecting member 41. Through the wireless communication module, the keyboard body 42 and the electronic device 5 can communicate wirelessly. The wireless communication can be performed after the electronic device is positioned in the protective cover assembly 20, or it can be performed when the electronic device 5 is separated from the protective cover assembly 20, which is not limited in this embodiment.

[0160] If the keyboard body 42 does not have a battery and a wireless communication module, the electronic device is in electrical contact with the connection structure 223, and the connection structure 225 is in electrical contact with the connection member 41. Through the connection structure 223, the transmission member 224, the connection structure 225 and the connection member 41, the electronic device can supply power to the keyboard body 42, and the keyboard body 42 can communicate with the electronic device.

[0161] The solution of the third embodiment also has the technical effects of the above embodiments, for example: adopting a back-connection design is conducive to achieving the thinness of electronic devices; providing a keyboard solution with good adaptability to electronic devices, mature structure, and good mass production, which can improve product competitiveness; can greatly reduce the thickness of the circuit connection between the protective cover assembly 20 and the electronic device, and improve user experience; the connector 41 is completely blocked by the second sub-component 222 and the second support member 33, which improves the aesthetics and user experience; the bracket part 21 and the keyboard part 4 are detachable, which can meet the needs of users to use only the bracket part 21 or the keyboard part 4. In addition, the first support member 22 includes the second sub-component 222, which can meet the product requirements of not requiring high thickness of the electronic device and the thickness of the bracket part, and make the strength and rigidity of the first support member 22 better, and the support of the electronic device is more stable and reliable.

[0162] Different from the third embodiment, in another embodiment, reference Fig. 20 , the second sub-component 222 may not be provided with the connection structure 223, the transmission component 224 and the connection structure 225. The second sub-component 222 is only used as a structural component to support the electronic device and does not have a circuit connection function. In this embodiment, the connecting component 41 may include a first wireless coil 414, and the first wireless coil 414 may be coupled with the wireless coil in the electronic device through the second sub-component 222. Alternatively, the connecting component 41 may include a connector, such as Fig.23 As shown, a through hole 222a may be provided at a corresponding position of the second sub-component 222, and the contact in the connector may pass through the through hole 222a and electrically contact with the contact sheet on the back of the electronic device.

[0163] Fig.24 It is a schematic diagram of the structure of the electronic device 10 of the fourth embodiment, wherein the bracket portion 3 of the protective cover assembly 30 is in a supporting state, and the electronic device 5 is placed on the protective cover assembly 30. Different from the first embodiment, the keyboard body 42 of the fourth embodiment does not have a touchpad, but includes a key core 421 and a keyboard connection area 423, and the connector 41, the keyboard connection area 423 and the key core 421 are connected in sequence. In addition, the second support member 33 and the connector 41 are detachably connected, for example, by magnet attraction, by Velcro adhesion, and / or by structural feature engagement. The connector 41 can be located within the angle a formed by the electronic device 5 and the second support member 33. Combined with Fig.24 and Figure 6 As shown, when the connecting member 41 includes a connector, the contact of the connector can face the first receiving groove 411a, pass through the through hole of the bottom wall of the first receiving groove 411a, and face the second supporting member 33. The first supporting member 31 and the second supporting member 33 are arranged with a circuit structure, and the electronic device 5 can establish a circuit connection with the connecting member 41 through the circuit structure in the first supporting member 31 and the second supporting member 33, which will be described below.

[0164] Fig.25 It can represent the structure when the first support member 31 and the second support member 33 are flattened. Fig.25 As shown, the protective cover assembly 30 may further include a connecting structure 34 (which may be referred to as a first connecting structure 34), a transmission member 35 (which may be referred to as a first transmission member 35) and a connecting structure 36 (which may be referred to as a second connecting structure 36), wherein the transmission member 35 is connected between the connecting structure 34 and the connecting structure 36. The connecting structure 34 may be provided on the first supporting member 31, and the connecting structure 36 may be provided on the second supporting member 33. A portion of the transmission member 35 is provided on the first supporting member 31, and another portion is provided on the second supporting member 33.

[0165] Schematically, the connection structure 34 can be a wireless coil (in this case, the connection structure 34 can be referred to as a third wireless coil), which is used to couple with an electronic device so that the electronic device can wirelessly charge the battery in the keyboard body 42 (to be described below). The wireless coil can be the first wireless coil 414 mentioned above, or any other suitable wireless coil, which is not limited in this embodiment. In another embodiment, the connection structure 34 can also be a connector, which is used to electrically contact with an electronic device so that the electronic device can charge the battery in the keyboard body 42; or, to enable the electronic device 5 to supply power to the keyboard body 42 so that the keyboard body 42 and the electronic device 5 can communicate by wire (to be described below). The connector can be the connector in the above embodiment (such as connector 6), or any other suitable connector, which is not limited in this embodiment. Schematically, when the connection structure 34 is a wireless coil, the connection structure 34 can be buried in the first support member 31; when the connection structure 34 is a connector, most of the connection structure 34 can be hidden in the first support member 31, and the contact of the connection structure 34 can be exposed on the surface of the first support member 31.

[0166] Schematically, the transmission member 35 may be an FPC or a cable, and the transmission member 35 conducts the connection structure 34 and the connection structure 36. Schematically, the portion of the transmission member 35 located on the first support member 31 may be buried in the first support member 31, and the portion of the transmission member 35 located on the second support member 33 may be buried in the second support member 33.

[0167] Schematically, the connection structure 36 can be a conductive contact, such as a contact made of copper or other materials. The conductive contact is used to electrically contact the connector in the connector 41. In another embodiment, the connection structure 36 can be any component that can achieve circuit connection, including but not limited to a connector (electrically contacting the connector in the connector 41) or a wireless coil (the connection structure 36 is coupled with the first wireless coil 414 in the connector 41). Schematically, when the connection structure 36 is a conductive contact, the connection structure 36 can be exposed on the surface of the second support member 33; when the connection structure 36 is a connector, most of the connection structure 36 can be hidden in the second support member 33, and the contact of the connection structure 36 can be exposed on the surface of the second support member 33; when the connection structure 36 is a wireless coil, the connection structure 36 can be buried in the second support member 33.

[0168] Fig.26 The exploded structure of the second support member 33 can be represented as follows. Fig.26 As shown, the second support member 33 may include a body 331, a magnet 333 and a cover member 332. A receiving groove 33a may be provided at the edge of the body 331, and the magnet 333 may be installed in the receiving groove 33a. At least a portion of the connecting structure 36 may be located in the receiving groove 33a. The cover member 332 is loaded into the receiving groove 33a, and the magnet 333 and the connecting structure 36 are encapsulated in the receiving groove 33a. The cover member 332 may be close to the bottom wall of the receiving groove 33a, and the cover member 332 only occupies part of the space of the receiving groove 33a close to the bottom wall. A through hole 332a may be provided on the cover member 332 for the connecting structure 36 to be exposed or pass through.

[0169] The following will describe how the protective cover assembly 30 of this embodiment is used in conjunction with the electronic device 5 .

[0170] Combination Fig.24 and Fig.25As shown, when the electronic device 5 is positioned on the protective cover assembly 30, the first support member 31 can be magnetically attracted and / or snapped with the electronic device 5. The wireless coil in the electronic device 5 can be coupled and connected with the connecting structure 34 (which is a wireless coil), or the contact sheet on the back of the electronic device 5 can be electrically contacted with the connecting structure 34 (which is a connector). The magnet 333 in the second support member 33 can be magnetically attracted with the magnet in the connecting member 41, or the second support member 33 and the connecting member 41 can also form a detachable connection through structural features. The connecting structure 36 (which is a conductive contact or a connector) can be electrically contacted with the contact of the connector in the connecting member 41, or the connecting structure 36 (which is a wireless coil) can be coupled and connected with the first wireless coil 414 in the connecting member 41. Thus, through the connecting structure 34, the transmission member 35, the connecting structure 36 and the connecting member 41, the electronic device 5 can establish a circuit connection with the keyboard body 42. In this embodiment, the electronic device 5 can wirelessly charge the keyboard body 42, and the keyboard body 42 can wirelessly communicate with the electronic device 5; alternatively, the electronic device 5 can supply power to the keyboard body 42, and the keyboard body 42 can communicate with the electronic device 5 by wire. The specific implementation is the same as described above and will not be repeated here.

[0171] The solution of the fourth embodiment can be applied to keyboard solutions without a touchpad. The solution of the fourth embodiment also has the technical effects of the above embodiments, for example: a back connection design is adopted, which is conducive to realizing the lightness and thinness of the electronic device 5; a keyboard solution with good adaptability to the electronic device 5, mature structure, and good mass production is provided, which can improve the competitiveness of the product; the thickness of the circuit connection between the protective cover assembly 30 and the electronic device 5 can be greatly reduced, and the user experience can be improved; the connector 41 is completely blocked by the second support member 33 and the electronic device 5, which improves the aesthetics and user experience; the bracket part 3 and the keyboard part 4 are detachable, which can meet the needs of users who only use the bracket part 3 or the keyboard part 4. In addition, the protective cover assembly 30 has fewer parts, a simple structure, is relatively light, and has a low cost.

[0172] Fig. 27 and Fig.28 The protective cover assembly 40 of the fifth embodiment is shown. Different from the above-mentioned fourth embodiment, the first support member 31 of the protective cover assembly 40 may include a first sub-member 311 and a second sub-member 312, which may be arranged in a stacked manner, the area of ​​the first sub-member 311 may be smaller than the area of ​​the second sub-member 312, the first sub-member 311 may cover the upper area of ​​the second sub-member 312, and the lower area of ​​the second sub-member 312 may exceed the boundary of the first sub-member 311. The first sub-member 311 and the second sub-member 312 may be fixedly connected, for example, they may be bonded. The second support member 33 is hinged to the first sub-member 311, and the second support member 33 and the first sub-member 311 are located on the same side of the second sub-member 312. When the second support member 33 is rotated to be parallel to the first sub-member 311, the second support member 33 may basically cover the lower area of ​​the second sub-member 312.

[0173] refer to Fig. 27 and Fig.28 As shown, the second sub-component 312 can only serve as a structural component to support the electronic device, and there is no circuit structure therein. The connecting structure 34 can be arranged on the first sub-component 311, and a part of the second transmission component can be arranged on the first sub-component 311. Schematically, the connecting structure 34 can be a connector, and a through hole 312a can be provided on the second sub-component 312 to expose the contact of the connecting structure 34. In another embodiment, the connecting structure 34 can be a wireless coil, and the second sub-component 312 can be free of the through hole 312a. The second sub-component 312 can be magnetic, for example, it can have a built-in magnet; and / or, the edge of the second sub-component 312 can be provided with a clamping structure, such as a buckle or a claw.

[0174] The following will describe how the protective cover assembly 40 of this embodiment is used in conjunction with an electronic device.

[0175] refer to Fig. 27 As shown, when the electronic device is positioned on the protective cover assembly 40, the first sub-component 311 of the first support member 31 can be magnetically attracted or snapped with the electronic device. The contact sheet on the back of the electronic device 5 can be electrically contacted with the connection structure 34 (which is a connector), or the wireless coil in the electronic device can be coupled and connected with the connection structure 34 (which is a wireless coil). The second support member 33 can be detachably connected to the connector 41 through magnetic attraction and / or through structural features. The connection structure 36 (which is a conductive contact or connector) can be electrically contacted with the connector in the connector 41, or the connection structure 36 (which is a wireless coil) can be coupled and connected with the first wireless coil in the connector 41. Thus, through the connection structure 34, the second transmission member, the connection structure 36 and the connector 41, the electronic device can establish a circuit connection with the keyboard body 42. In this embodiment, the electronic device can wirelessly charge the keyboard body 42, and the keyboard body 42 can communicate wirelessly with the electronic device; or, the electronic device can supply power to the keyboard body 42, and the keyboard body 42 can communicate with the electronic device by wire. The specific implementation is the same as described above and will not be repeated here.

[0176] The solution of the fifth embodiment can be applied to keyboard solutions without a touchpad. The solution of the fifth embodiment also has the technical effects of the above embodiments, for example: a back-connection design is adopted, which is conducive to realizing the thinness of electronic devices; a keyboard solution with good adaptability to electronic devices, mature structure, and good mass production is provided, which can enhance product competitiveness; the thickness of the circuit connection between the protective cover assembly 40 and the electronic device can be greatly reduced, and the user experience can be enhanced; the connector 41 is completely blocked by the second support member 33 and the electronic device, which enhances the aesthetics and user experience; the bracket part 3 and the keyboard part 4 are detachable, which can meet the needs of users to use only the bracket part 3 or the keyboard part 4. In addition, the first support member 31 includes the second sub-member 312, which can meet the product requirements for the thickness of the electronic device and the thickness of the bracket part, and the strength and rigidity of the first support member 31 are better, and the support of the electronic device is more stable and reliable.

[0177] Different from the fifth embodiment, in the sixth embodiment, a part of the transmission component 35 and the connection structure 34 can be arranged on the second component 312, and there is no circuit structure on the first component 311, so that the circuit connection between the electronic device and the keyboard body 42 can be established.

[0178] Schematically, in any embodiment of the present application, one end of the connector 41 can form a flexible connection with the keyboard body 42, and the other end of the connector 41 is a free end relative to the keyboard body 42. When the keyboard portion 4 is separated from the bracket portion 3, the flexible connection enables the connector 41 to bend and flip relative to the keyboard body 42. For example, the flexible connection can be achieved by the material and structure of the connector 41 itself. Schematically, when the connector 41 is bent to the back of the keyboard body 42, the connector 41 can be detachably connected to the back of the keyboard body 42, wherein the back is opposite to a side of the keyboard body 42 where keys are provided, and the detachable connection includes but is not limited to magnetic attraction, adhesion by Velcro, snap-fit, etc. Alternatively, when the connector 41 is bent to the back of the keyboard body 42, the connector 41 is not connected to the back of the keyboard body 42, but is only in loose contact.

[0179] Take the protective cover assembly 40 of the fifth embodiment (the keyboard body 42 has no touch panel and has a keyboard connection area 423) as an example. Fig.29 and Fig.30 As shown, the keyboard connection area 423 has a back side 423a, which is opposite to the side of the keyboard body 42 provided with the keys 421a. The connector 41 can form a flexible connection with the keyboard connection area 423, and the connector 41 can be bent to the back side 423a and detachably connected to the back side 423a.

[0180] It is understandable that when the keyboard body 42 has a key core 421 and a touch pad, but does not have a keyboard connection area 423, for example, Figure 3 As shown, the connecting member 41 can also form a flexible connection with the key core 421 . The connecting member 41 can be bent to the back side of the key core 421 and be detachably connected to the back side of the key core 421 .

[0181] In this embodiment, when the keyboard part 4 is separated from the bracket part 3, the connecting member 41 is flipped to the back of the keyboard body 42 and detachably connected to the keyboard body 42, so that the connecting member 41 can be fixed to the back of the keyboard body 42, and the keyboard part 4 has a relatively simple and neat appearance. When the user inputs on the keyboard body 42, the connecting member 41 can also raise the inclination angle of the keyboard body 42, which is convenient for the user to input and improves the user experience. It can be understood that if the connecting member 41 is flipped to the back of the keyboard body 42 but is not connected to the keyboard body 42 but only contacts it, it can also have a similar effect.

[0182] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A protective cover assembly for use with an electronic device, characterized in that: The protective cover assembly includes a keyboard body, a connecting member, a first supporting member and a second supporting member; The connecting member is fixed to the keyboard body and electrically connected to the keyboard body; The first support member is hinged to the second support member, and the second support member is used to form a detachable connection with the connecting member; When the electronic device is placed on the protective cover assembly, the first supporting member contacts the back of the electronic device, the second supporting member rotates at a certain angle relative to the first supporting member and forms an angle with the back of the electronic device, the connecting member is located within the angle, and the connecting member forms a circuit connection with the electronic device, wherein the back of the electronic device is opposite to the display screen of the electronic device.

2. The protective cover assembly according to claim 1, characterized in that: The keyboard body is built with a battery and a wireless communication module, and the wireless communication module is used for wireless communication with the wireless communication module in the electronic device; The connecting member includes a first wireless coil, which is electrically connected to the battery; when the electronic device is placed on the protective cover assembly, the first wireless coil is coupled and connected to the wireless coil in the electronic device, and the battery is used to receive electrical energy input by the electronic device.

3. The protective cover assembly according to claim 2, characterized in that: The first wireless coil includes a conductive coil, a first flexible circuit board and a nanocrystal layer, the first flexible circuit board includes a first part and a second part, the first part is connected to the second part, the conductive coil, the nanocrystal layer and the first part are stacked in sequence, the conductive coil is electrically connected to the first part, and the second part is electrically connected to the keyboard body.

4. The protective cover assembly according to claim 2 or 3, characterized in that: The thickness of the first wireless coil is 0.4 mm-1.0 mm.

5. The protective cover assembly according to claim 1, characterized in that: The connecting member includes a connector. When the electronic device is placed on the protective cover assembly, the connector forms a circuit connection with the electronic device.

6. The protective cover assembly according to claim 5, characterized in that: The connector includes a printed circuit board, a second flexible circuit board and a spring; the second flexible circuit board includes a third part and a fourth part, the third part is connected to the fourth part, the third part is electrically connected to the printed circuit board, and the fourth part is electrically connected to the keyboard body; the spring is welded to the printed circuit board, and the spring is used to achieve electrical contact.

7. The protective cover assembly according to claim 6, characterized in that: The spring sheet includes a base plate, an elastic arm and a contact. The elastic arm and the base plate form a bending structure. There is a gap between the elastic arm and the base plate. The contact is connected to the side of the elastic arm facing away from the base plate, and the contact is used to achieve electrical contact.

8. The protective cover assembly according to claim 7, characterized in that: When the spring sheet is in a working state, the distance between the surface of the elastic arm connected to the contact and the surface of the bottom plate facing away from the elastic arm is 0.1 mm-1.5 mm.

9. The protective cover assembly according to claim 2, characterized in that: The connecting member further comprises a base and a cover member, wherein the cover member is connected to the base; A portion of the first wireless coil is located between the cover and the base, and another portion of the first wireless coil is located outside the cover and the base.

10. The protective cover assembly according to claim 9, characterized in that: The conductive coil in the first wireless coil, the first part of the first flexible circuit board and the nanocrystalline layer are located between the cover and the base, a part of the second part of the first flexible circuit board is located between the cover and the base, and another part of the second part is located outside the cover and the base.

11. The protective cover assembly according to claim 10, characterized in that: The base is provided with a first receiving groove; The conductive coil in the first wireless coil, the first portion of the first flexible circuit board, and the nanocrystalline layer are received in the first receiving groove, and the second portion of the first flexible circuit board is located outside the first receiving groove.

12. The protective cover assembly according to claim 11, characterized in that: The connecting member further includes a cover plate, which covers the first receiving groove and is located between the base and the covering member.

13. The protective cover assembly according to any one of claims 10 to 12, characterized in that: The base is provided with a second receiving groove; the cover comprises a first cover and a second cover, the first cover is installed in the second receiving groove, and the second cover covers the first cover and the base; The conductive coil in the first wireless coil, the first portion of the first flexible circuit board, and the nanocrystalline layer are located between the second cover and the base, and a portion of the second portion of the first flexible circuit board is located between the second cover and the first cover.

14. The protective cover assembly according to claim 5, characterized in that: The connecting member further comprises a base and a cover member, wherein the cover member is connected to the base; A portion of the connector is located between the cover and the base, and another portion of the connector is located outside the cover and the base.

15. The protective cover assembly according to any one of claims 9 to 14, characterized in that: The connecting member further comprises a magnet, and the magnet is located inside the base.

16. The protective cover assembly according to any one of claims 1 to 15, characterized in that: The second supporting member is provided with a receiving groove, and when the second supporting member is connected to the connecting member, the connecting member is received in the receiving groove.

17. The protective cover assembly according to any one of claims 1 to 16, characterized in that: The second supporting member has magnetism.

18. The protective cover assembly according to any one of claims 1 to 17, characterized in that: The keyboard body comprises a key core and a touch pad, and the connecting member, the key core and the touch pad are connected in sequence; When the electronic device is placed on the protective cover assembly, the connector is detachably connected to the back side of the electronic device.

19. The protective cover assembly according to claim 18, characterized in that: When the electronic device is placed on the protective cover assembly, the connector contacts the back side of the electronic device.

20. The protective cover assembly according to any one of claims 1 to 17, characterized in that: The keyboard body comprises a key core and a keyboard connection area, and the connecting member, the keyboard connection area and the key core are connected in sequence; The protective cover assembly further includes a first connection structure, a transmission member, and a second connection structure, wherein the first connection structure is disposed on the first support member, the second connection structure is disposed on the second support member, a portion of the transmission member is disposed on the first support member, and another portion of the transmission member is disposed on the second support member, and the transmission member is connected between the first connection structure and the second connection structure; When the electronic device is placed on the protective cover assembly, the keyboard connection area is located between the electronic device and the second support member, the connecting member and the second support member are detachably connected, the connecting member and the second connecting structure form a circuit connection, and the first connecting structure and the electronic device form a circuit connection.

21. The protective cover assembly according to any one of claims 1 to 20, characterized in that: The connecting member forms a flexible connection with the keyboard body; when the connecting member is separated from the second supporting member, the connecting member can be bent relative to the keyboard body and be detachably connected to the back side of the keyboard body, wherein the back side of the keyboard body is opposite to a side of the keyboard body on which keys are provided.

22. An electronic device, characterized in that: It includes an electronic device and a protective cover assembly as described in any one of claims 1-21, wherein the electronic device has a display screen and a back side, the display screen is opposite to the back side of the electronic device, the electronic device is used to be placed on the protective cover assembly, the first support member is used to contact the back side of the electronic device, and the connecting member is used to form a circuit connection with the electronic device.

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