Combined intelligent door lock with display screen

Abstract

The utility model provides a combined intelligent door lock with a display screen, which comprises a panel assembly and a display screen assembly in signal connection with the panel assembly, and the panel assembly comprises a first adsorption part, a first power supply and a first controller; the display screen assembly comprises a shell, a display screen and a second adsorption part; when the display screen assembly is placed on the panel assembly, the first adsorption part and the second adsorption part are adsorbed, and the display screen assembly is fixed to the panel assembly. The display screen assembly can be fixed to the panel assembly in an adsorption mode to serve as a display screen of the panel assembly, the display screen assembly can also be detached from the panel assembly to serve as a movable intelligent control screen to interact with the panel assembly, and convenience of user operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent locks, in particular to a combined intelligent door lock with a display screen. Background Art

[0002] A smart door lock is a lock that combines electronic technology, mechanical technology and network technology. It not only has the basic functions of a traditional mechanical lock, such as opening and closing doors, locking and unlocking, but can also be operated through a variety of intelligent methods such as mobile phone APP, fingerprint recognition, password input, etc. Smart door locks with display screens provide more diverse choices in security monitoring, smart home, and convenience of life, such as video surveillance and other functions.

[0003] At present, smart door locks with displays on the market generally fix the display assembly on the panel assembly. When interacting, it is necessary to operate near the smart lock, which limits the user's usage scenarios and is inconvenient for user interaction. Utility Model Content

[0004] The purpose of this application is to solve the above-mentioned problem and provide a combined smart door lock with a display screen to solve the technical problem that the display screen component is fixed on the panel component and is inconvenient for interaction.

[0005] To achieve the above-mentioned object, the present application provides a combined smart door lock with a display screen, comprising a panel assembly and a display screen assembly connected to the panel assembly by signal, wherein the panel assembly comprises a first adsorption member, a first power module and a first controller, wherein the first power module and the first controller are electrically connected; a display screen placement position is provided on the panel assembly, and the first adsorption member is arranged at the display screen placement position;

[0006] The display screen assembly includes a shell, a display screen and a second adsorbent. The display screen is arranged on one side of the shell, and the second adsorbent is arranged on the other side of the shell at a position corresponding to the first adsorbent. When the display screen assembly is placed in the display screen placement position, the first adsorbent and the second adsorbent are adsorbed to fix the display screen assembly on the panel assembly.

[0007] Compared with the prior art, the combined smart door lock with a display screen of the present invention has a display screen assembly that can be fixed on the panel assembly by the adsorption force between the first adsorption component and the second adsorption component to act as the display screen of the panel assembly, and the display screen assembly can also be removed from the panel assembly to become a movable smart control screen to interact with the panel assembly, thereby improving the convenience of user operation.

[0008] In one embodiment, the panel assembly is provided with a first electrical connection port, and the corresponding position of the display assembly is provided with a second electrical connection port connected to the first controller. When the display assembly is placed in the display placement position, the first electrical connection port and the second electrical connection port are connected; in the display assembly, the display is connected to the second electrical connection port, and is connected to the first controller through the second electrical connection port and the first electrical connection port; or, the display assembly also includes a second controller connected to the display, and the second controller is connected to the second electrical connection port, and is connected to the first controller through the second electrical connection port and the first electrical connection port. When the display assembly is adsorbed on the panel assembly, the first controller is electrically connected to the display to control the display and interaction, or is electrically connected to the second controller, and the display display is controlled by the second controller; when the display assembly is separated from the panel assembly, the first controller is connected to the second controller by wireless signals, and the second controller controls the display of the display.

[0009] In one embodiment, the display screen placement position is provided with a recessed portion, the first adsorption component is provided in the recessed portion, the shell has a raised portion on a side away from the display screen, the second adsorption component is provided on the raised portion, and the recessed portion matches the raised portion, so that the display screen assembly can be placed on the display screen placement position more conveniently and accurately.

[0010] In one embodiment, the raised portion includes an outer curved surface, and the recessed portion includes an inner curved surface matching the outer curved surface, so as to facilitate placement of the display screen assembly on the display screen placement position at different angles.

[0011] In one embodiment, the shell includes a frame and a back cover, the frame has a first opening and a second opening, the display screen is assembled at the first opening, the back cover is assembled at the second opening, the raised portion is arranged on the back side of the back cover, the frame, the display screen, the back cover and the raised portion together form a receiving cavity, and the second adsorbent is arranged in the receiving cavity to play a protective role.

[0012] In one embodiment, the display screen assembly further includes a second power module and a charging component disposed in the housing; the charging component is connected to the second power module to charge the second power module.

[0013] In one embodiment, the charging component is a charging interface connected to the second power module, and the second power module is charged by inserting a charging cable into the charging interface; or, the charging component is a wireless charging receiving module, and the second power module is charged by being electrically connected to an external wireless charging output power supply.

[0014] In one embodiment, the display screen assembly further includes a charging output module and a second power module disposed in the housing, and the second power module is electrically connected to the charging output module; the panel assembly further includes a charging receiving module, the charging receiving module is disposed at the display screen placement position, and the charging receiving module is electrically connected to the first power module; when the display screen assembly is placed at the display screen placement position, the charging output module is electrically connected to the charging receiving module. The charging output module outputs electric quantity, the charging receiving module receives electric quantity, and transmits the electric quantity to the first power module, so as to facilitate charging of the first power module.

[0015] In one embodiment, the charging receiving module includes a wireless charging receiving coil, and the charging output module includes a wireless charging output coil, and wireless charging can be achieved through electromagnetic induction without carrying an additional charging cable.

[0016] In one embodiment, the charging receiving module includes a first charging contact, which is arranged at the display screen placement position, and the charging output module includes a second charging contact, which is electrically connected to the first charging contact when the display screen assembly is placed at the display screen placement position. The electrical connection between the first charging contact and the second charging contact can transmit the current of the second power supply module to the first power supply module to achieve charging, and the charging is stable.

[0017] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a display screen component of a combined smart door lock with a display screen in one embodiment of the present application being adsorbed on a panel component;

[0019] Figure 2 This is a structural schematic diagram of a panel assembly of a combined smart door lock with a display screen in one embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the partial structure inside the mounting base of the panel assembly of the combined smart door lock with a display screen in one embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the exploded structure of a display screen assembly of a combined smart door lock with a display screen in one embodiment of the present application;

[0022] Figure 5 This is a partial structural schematic diagram of a panel assembly of a combined smart door lock with a display screen in one embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of a display screen assembly of a combined smart door lock with a display screen in one embodiment of the present application.

[0024] Numbers in the figure:

[0025] 1-panel assembly, 2-display assembly, 11-first adsorption piece, 12-first power module, 13-first controller, 14-display placement position, 15-mounting seat, 16-door handle, 17-first electrical connection port, 21-shell, 22-display, 23-second adsorption piece, 24-second electrical connection port, 25-second controller, 26-second power module, 27-charging component, 141-recessed portion, 161-electronic unlocking button, 162-mechanical unlocking knob, 18a-wireless charging receiving coil, 18b-first charging contact, 211-raised portion, 212-frame, 213-back cover, 271-charging interface, 28a-wireless charging output coil, 28b-second charging contact, 1411-inner arc surface, 2111-outer arc surface. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of this application. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0028] It should also be noted that in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] Please also read Figures 1 to 3 The present embodiment provides a combined smart door lock with a display screen, which includes a panel assembly 1 and a display screen assembly 2 signal-connected to the panel assembly 1, wherein the panel assembly 1 includes a first adsorption component 11, a first power module 12 and a first controller 13, wherein the first power module 12 and the first controller 13 are electrically connected; a display screen placement position 14 is provided on the panel assembly 1, and the first adsorption component 11 is arranged at the display screen placement position 14.

[0030] Please also read Figure 2 and Figure 3 , the panel assembly 1 also includes a mounting seat 15, and the first adsorption member 11, the first power module 12, the first controller 13 and the display screen placement position 14 are all arranged on the mounting seat 15. The mounting seat 15 is a rectangular parallelepiped structure, and its length direction is parallel to the height direction of the door. The display screen placement position 14 is arranged at the upper end of the mounting seat 15 for easy operation. The first power module is arranged at the lower end of the mounting seat 15. In other embodiments, the outer contour of the mounting seat 15 can also be an ellipse or other shapes. In other embodiments, the display screen placement position 14 can also be located in the middle or lower end of the mounting seat 15.

[0031] See also Figure 2 The panel assembly 1 further includes a door handle 16, which is located in the middle of the mounting seat 15 to avoid affecting the placement and access of the display assembly 2 and conform to the operating habits of consumers. In another embodiment, the display placement position 14 can be located at the lower end of the mounting seat 15, and the door handle 16 is located at the upper end of the mounting seat 15.

[0032] The door handle 16 is provided with an electronic unlocking button 161, which is electrically connected to the first controller 13. Pressing the electronic unlocking button 161 generates an electrical signal, which is transmitted to the first controller 13, and the first controller 13 controls the lock cylinder of the panel assembly 1 to unlock. In one embodiment, the electronic unlocking button 161 can also be a fingerprint recognition button to further improve security.

[0033] The door handle 16 is also provided with a mechanical unlocking knob 162, which can be physically unlocked by twisting the mechanical unlocking knob 162, and can be used in an emergency when the power is off to improve safety. The mechanical unlocking knob 162 is made of anti-slip material, which increases the friction between the hand and the surface of the mechanical unlocking knob 162 to facilitate rotation. In another embodiment, the mechanical unlocking knob 162 can also be provided with anti-slip textures or a non-slip sleeve on its surface to increase friction.

[0034] The electronic unlocking button 161 may be provided on the door handle 16 alone, or the electronic unlocking button 161 and the mechanical unlocking knob 162 may be provided at the same time, so as to increase the unlocking selectivity.

[0035] Please also read Figures 1 to 4 The display screen assembly 2 includes a shell 21, a display screen 22 and a second adsorption component 23. The display screen 22 is arranged on one side of the shell 21, and the second adsorption component 23 is arranged on the other side of the shell 21 at a position corresponding to the first adsorption component 11; when the display screen assembly 2 is placed in the display screen placement position 14, the first adsorption component 11 and the second adsorption component 23 are adsorbed to fix the display screen assembly 2 on the panel assembly 1.

[0036] The first adsorption member 11 and the second adsorption member 23 are both magnets, and the display screen assembly 2 can be firmly adsorbed on the panel assembly 1 through the magnetic attraction between the magnets. In another embodiment, the first adsorption member 11 is a magnet, and the second adsorption member 23 is a ferromagnetic metal such as iron. Alternatively, the first adsorption member 11 is a ferromagnetic metal such as iron, and the second adsorption member 23 is a magnet.

[0037] Please also read Figure 2 and Figure 4The display screen placement position 14 is provided with a recessed portion 141, the first adsorption member 11 is provided in the recessed portion 141, the side of the shell 21 away from the display screen 22 has a raised portion 211, the second adsorption member 23 is provided on the raised portion 211, the recessed portion 141 matches with the raised portion 211, and the display screen assembly 2 is limited, so that the operator can more accurately and conveniently adsorb the display screen assembly 2 on the display screen placement position 14. In another embodiment, the number of the raised portions 211 and the recessed portions 141 corresponds one to one, and can be 2, 3 or other numbers respectively. In another embodiment, the raised portion 211 can also be provided in the display screen placement position 14, and the corresponding recessed portion 141 is provided on the side of the shell 21 away from the display screen 22.

[0038] Please also read Figure 2 and Figure 4 The raised portion 211 includes an outer curved surface 2111, and the recessed portion 141 includes an inner curved surface 1411 that cooperates with the outer curved surface 2111, which is convenient for the user to slightly tilt or place the display screen assembly 2 in multiple directions, and can also adsorb the display screen placement position 14 to improve the placement tolerance.

[0039] See also Figure 4 The shell 21 includes a frame 212 and a back cover 213. The frame 212 has a first opening and a second opening. The display screen 22 is assembled at the first opening, and the back cover 213 is assembled at the second opening. The protrusion 211 is arranged on the back of the back cover 213. The frame 212, the display screen 22, the back cover 213 and the protrusion 211 together form a receiving cavity. The second adsorbent 23 is arranged in the receiving cavity to play a protective and aesthetic role. In this embodiment, the back cover 213 is detachably mounted on the frame 212 by snapping, which is convenient for repairing or replacing the components inside the shell 21. In another embodiment, the back cover 213 can also be fixed to the frame 212 by screw connection or other installation methods. The protrusion 211 and the back cover 213 are detachable, and the user can also repair or replace the components inside the receiving cavity by removing the protrusion 211. In another embodiment, the protrusion 211 and the back cover 213 are integrally formed.

[0040] Please also read Figure 2 and Figure 4, the panel assembly 1 is provided with a first electrical connection port 17, and the corresponding position of the display assembly 2 is provided with a second electrical connection port 24 connected to the first controller 13. When the display assembly 2 is placed in the display placement position 14, the first electrical connection port 17 and the second electrical connection port 24 are connected; in the display assembly 2, the display screen 22 is connected to the second electrical connection port 24, and is connected to the first controller 13 through the second electrical connection port 24 and the first electrical connection port 17. When the first electrical connection port 17 and the second electrical connection port 24 are connected, the first power module 12 supplies power to the display screen 22, and the first controller 13 is electrically connected to the display screen 22 and controls the display and interaction of the display screen 22. The number of the first electrical connection port 17 and the second electrical connection port 24 are both 3, which enhances the electrical connection stability between the display assembly 2 and the panel assembly 1 and improves the fault tolerance rate. In other embodiments, the number of the first electrical connection port 17 and the second electrical connection port 24 can also be 2, 4 or other numbers.

[0041] In one embodiment, the display screen assembly 2 further includes a second controller 25 connected to the display screen 22, the second controller 25 is connected to the second electrical connection port 24, and is connected to the first controller 13 through the second electrical connection port 24 and the first electrical connection port 17. When the first electrical connection port 17 and the second electrical connection port 24 are connected, the first power module 12 supplies power to the second controller 25 and the display screen 22, at which time the first controller 13 is connected to the second controller 25 by signal, the first controller 13 sends instructions to the second controller 25, and the second controller 25 controls the display and interaction of the display screen 22. When the display screen assembly 2 is separated from the display screen placement position 14, the display screen assembly 2 can supply power to the second controller 25 and the display screen 22 through an external charger, at which time the first controller 13 is connected to the second controller 25 by wireless signal, the first controller 13 sends instructions to the second controller 25, so that the second controller 25 controls the display of the display screen 22. In another embodiment, the second controller 25 can independently control the display of the display screen 22 without the need for the first controller 13 to send instructions.

[0042] The display screen 22 is a touch screen, and the user can intelligently interact with the first controller 13 of the panel assembly 1 by touching the touch screen. Alternatively, the display screen assembly 2 has the second controller 25, and the user can interact with the second controller 25 by touching the touch screen, and the second controller 25 can interact with the first controller 13. Alternatively, the display screen assembly 2 has the second controller 25 and a functional button, and the user can send a signal to the second controller 25 by pressing the button, and the second controller 25 can interact with the first controller 13.

[0043] The display screen 22 is attached to the housing 21 by hot melt adhesive, so that the display screen 22 is not easy to fall off from the housing 21. Hot melt adhesive has excellent bonding strength, temperature resistance, chemical corrosion resistance and aging resistance, is green and environmentally friendly, and is easy to industrially automate and mechanize, with high production efficiency. In another embodiment, the display screen 22 can also be fixed to the housing 21 by double-sided adhesive or other glue.

[0044] The display screen assembly 2 further includes a second power module 26 and a charging component 27 disposed in the housing 21 ; the charging component 27 is connected to the second power module 26 to charge the second power module 26 .

[0045] See also Figure 4 , the charging component 27 is a charging interface 271 connected to the second power module 26, and the second power module 26 is charged by inserting the charging cable into the charging interface 271. Specifically, the charging interface 271 is arranged on the short side of the frame 212, which is convenient for plugging in the charging cable and does not affect the normal operation of the user. The charging interface 271 is a Type-C interface, which can be plugged in and out, and improves the fault tolerance and convenience of plugging and unplugging. In another embodiment, the charging interface 271 can also be an Android interface or other interface with a trapezoidal cross-section. In another embodiment, the second power module 26 can also be a disposable battery or a detachable rechargeable battery. The housing 21 does not need to be provided with the charging interface 271, and the energy is replenished by disassembling and replacing the battery.

[0046] The charging component 27 may also be a wireless charging receiving module, which is electrically connected to an external wireless charging output power source to charge the second power module 26, which is convenient to carry and saves wires.

[0047] The second power module 26 is a polymer battery. The polymer battery has good safety performance, thin thickness and large capacity, and can meet the power consumption of the system operation. In other embodiments, the second power module 26 can also be other types of rechargeable batteries.

[0048] The display screen assembly 2 further includes a charging output module and a second power module 26 disposed in the housing 21, and the second power module 26 is electrically connected to the charging output module; the panel assembly 1 further includes a charging receiving module, which is disposed at the display screen placement position 14 and is electrically connected to the first power module 12; when the display screen assembly 2 is placed at the display screen placement position 14, the charging output module is electrically connected to the charging receiving module. The charging output module can output power as a mobile charging power source, and the charging receiving module receives power and transmits the power to the first power module 12 to charge the first power module 12.

[0049] Please also read Figure 3 and Figure 4 , the charging receiving module includes a wireless charging receiving coil 18a, and the charging output module includes a wireless charging output coil 28a. The second power module 26 generates an electromagnetic signal through the wireless charging output coil 28a, and the wireless charging receiving coil 18a senses the electromagnetic signal and generates a current to be sent to the first power module 12 for charging. Wireless charging does not require plugging and unplugging, which reduces the risk of damaging the display assembly 2 due to improper plugging and unplugging, and can reduce the use of charging cables and charging adapters, which is more convenient and environmentally friendly.

[0050] Please also read Figure 5 and Figure 6 , the charging receiving module and the charging output module can also realize charging by mutual contact and electrical connection. Specifically, the charging receiving module includes a first charging contact 18b, which is set at the display screen placement position 14, and the charging output module includes a second charging contact 28b. When the display screen assembly 2 is placed at the display screen placement position 14, the second charging contact 28b is electrically connected to the first charging contact 18b. The first charging contact 18b can be set at the first electrical connection port 17, and the second charging contact 28b can be set at the second electrical connection port 24. When the display screen assembly 2 is adsorbed on the panel assembly 1, the first charging contact 18b and the second charging contact 28b are electrically connected, and the contact is more precise. In another embodiment, the first charging contact 18b can also be set at any position of the display screen placement position 14, and the second charging contact 28b is set correspondingly according to the position of the first charging contact 18b. In another embodiment, the first charging contact 18b or the second charging contact 28b can also be a charging ejector pin.

[0051] In summary, the utility model provides a combined smart door lock with a display screen, in which the display screen assembly 2 can be removed from the panel assembly 1 to become a movable smart control screen to realize the interaction of the panel assembly 1, thereby improving the convenience of user operation; the display screen assembly 2 can also be used as a mobile power supply, fixed to the panel assembly 1 by the adsorption force between the first adsorption component 11 and the second adsorption component 23, and the panel assembly 1 can be charged by wireless charging or contact charging, eliminating tedious operations such as wiring.

[0052] The specific examples described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined intelligent door lock with a display screen, characterized in that: The invention comprises a panel assembly and a display screen assembly connected to the panel assembly by signal, wherein the panel assembly comprises a first adsorbent, a first power module and a first controller, wherein the first power module and the first controller are electrically connected; a display screen placement position is provided on the panel assembly, and the first adsorbent is arranged at the display screen placement position; The display screen assembly includes a shell, a display screen and a second adsorbent. The display screen is arranged on one side of the shell, and the second adsorbent is arranged on the other side of the shell at a position corresponding to the first adsorbent. When the display screen assembly is placed in the display screen placement position, the first adsorbent and the second adsorbent are adsorbed to fix the display screen assembly on the panel assembly.

2. The combined intelligent door lock with a display screen according to claim 1, characterized in that: The panel assembly is provided with a first electrical connection port, and the display screen assembly is provided with a second electrical connection port connected to the first controller at a corresponding position, and when the display screen assembly is placed in the display screen placement position, the first electrical connection port and the second electrical connection port are connected; In the display screen assembly, the display screen is connected to the second electrical connection port, and is connected to the first controller through the second electrical connection port and the first electrical connection port; or, the display screen assembly also includes a second controller connected to the display screen, and the second controller is connected to the second electrical connection port, and is connected to the first controller through the second electrical connection port and the first electrical connection port.

3. The combined intelligent door lock with a display screen according to claim 1, characterized in that: The display screen placement position is provided with a recessed portion, the first adsorption component is provided in the recessed portion, the side of the shell away from the display screen has a raised portion, the second adsorption component is provided in the raised portion, and the recessed portion matches the raised portion.

4. A combined intelligent door lock with a display screen according to claim 3, characterized in that: The protruding portion includes an outer arc surface, and the recessed portion includes an inner arc surface matched with the outer arc surface.

5. The combined intelligent door lock with a display screen according to claim 3, characterized in that: The shell includes a frame and a back cover, the frame has a first opening and a second opening, the display screen is assembled at the first opening, the back cover is assembled at the second opening, the raised portion is arranged on the back side of the back cover, the frame, the display screen, the back cover and the raised portion together form a receiving cavity, and the second adsorbent is arranged in the receiving cavity.

6. The combined intelligent door lock with a display screen according to claim 1, characterized in that: The display screen assembly also includes a second power module and a charging component arranged in the shell; the charging component is connected to the second power module to charge the second power module.

7. The combined intelligent door lock with a display screen according to claim 6, characterized in that: The charging component is a charging interface connected to the second power module; or, The charging component is a wireless charging receiving module.

8. The combined intelligent door lock with a display screen according to any one of claims 1 to 5, characterized in that: The display screen assembly further includes a charging output module and a second power module disposed in the housing, the second power module being electrically connected to the charging output module; The panel assembly further includes a charging receiving module, which is disposed at the display screen placement position and is electrically connected to the first power supply module; When the display screen assembly is placed in the display screen placement position, the charging output module is electrically connected to the charging receiving module.

9. The combined intelligent door lock with a display screen according to claim 8, characterized in that: The charging receiving module includes a wireless charging receiving coil, and the charging output module includes a wireless charging output coil.

10. The combined intelligent door lock with a display screen according to claim 8, characterized in that: The charging receiving module includes a first charging contact, which is arranged at the display screen placement position. The charging output module includes a second charging contact, and when the display screen assembly is placed at the display screen placement position, the second charging contact is electrically connected to the first charging contact.

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