Terminal

Abstract

The utility model provides a terminal, and belongs to the technical field of wireless charging. The terminal comprises a display module, a coil, an inverter and an adsorption part. The display module comprises a display assembly and a first protection plate which are stacked. The coil is located between the display assembly and the first protection plate; the inverter is electrically connected with a battery of the terminal and the coil respectively; the adsorption part is located on the side, away from the display assembly, of the coil, is arranged opposite to the coil and is connected with the first protection plate. By adopting the wireless charging method and device, in the wireless charging process of the transmitting terminal and the receiving terminal, a user can observe the content displayed by the transmitting terminal and the receiving terminal at the same time, so that the user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless charging technologies, and particularly to a terminal. Background Art

[0002] Nowadays, wireless charging has rapidly become the mainstream charging option for users due to its convenience and aesthetics.

[0003] With the development of technologies, the wireless charging technology between terminals has become increasingly mature. Among the two terminals for wireless charging, the terminal that provides electrical energy can be referred to as the transmitting terminal, and the terminal that receives electrical energy can be referred to as the receiving terminal. Coils are provided inside both the transmitting terminal and the receiving terminal, and the two achieve wireless charging through the principle of electromagnetic induction.

[0004] However, for current terminals, their coils are usually arranged closely against the back plate, and the terminals need to have their back plates closely attached together to perform wireless charging. This makes it impossible for users to observe the content displayed on both terminals simultaneously when the terminals are wirelessly charged, resulting in a poor user experience. Summary of the Utility Model

[0005] The present disclosure provides a terminal that can solve the technical problems existing in the related technologies. The technical solution of the terminal is as follows:

[0006] The present disclosure provides a terminal, which includes a display module, a coil, an inverter, and an adsorption member;

[0007] The display module includes a display component and a first protection plate that are stacked;

[0008] The coil is located between the display component and the first protection plate;

[0009] The inverter is electrically connected to the battery and the coil of the terminal respectively;

[0010] The adsorption member is located on a side of the coil away from the display component, is arranged opposite to the coil, and is connected to the first protection plate.

[0011] In a possible implementation manner, the adsorption member is located between the first protection plate and the coil.

[0012] In a possible implementation manner, the first protection plate has a mounting groove on a side close to the coil, and the adsorption member is located in the mounting groove.

[0013] In a possible implementation manner, the coil is located in the mounting groove and does not protrude from the mounting groove.

[0014] In a possible implementation manner, the adsorption member is located on a side of the first protection plate away from the coil.

[0015] In a possible implementation, the coil includes an FPC substrate, a first wire, a second wire, and a connecting wire;

[0016] The FPC substrate has a thin plate-like structure and has a first wall surface, a second wall surface, a first through hole, and a second through hole. The first wall surface and the second wall surface are two opposite wall surfaces in the thickness direction, and the first through hole and the second through hole penetrate the first wall surface and the second wall surface respectively;

[0017] The first wire and the second wire are respectively fixed on the first wall surface, and the first wire is spirally wound on the first wall surface;

[0018] The connecting wire includes a fixing portion, a first connecting portion, and a second connecting portion. The fixing portion is fixed on the second wall surface. One end of the first connecting portion is connected to one end of the fixing portion, and the other end passes through the first through hole and is connected to the first wire. One end of the second connecting portion is connected to the other end of the fixing portion, and the other end passes through the second through hole and is connected to the second wire.

[0019] In a possible implementation, the coil is electrically connected to the NFC chip of the terminal.

[0020] In a possible implementation, the output frequency of the inverter is in the range of [1 MHz, 30 MHz].

[0021] In a possible implementation, the output frequency of the inverter is 13.56 MHz.

[0022] In a possible implementation, the display component includes a thin film transistor, a liquid crystal screen, a polarizer, and a second protection plate stacked on top of each other;

[0023] The thin film transistor, the liquid crystal screen, the polarizer, and the second protection plate are sequentially arranged in the direction from the first protection plate to the coil.

[0024] The technical solution provided by the present disclosure has at least the following beneficial effects:

[0025] The present disclosure provides a terminal. In this terminal, the coil is arranged inside the display module, which enables the terminal to be used as a transmitting terminal to directly wirelessly charge a receiving terminal placed above the display module. During wireless charging, the display module of the transmitting terminal is in contact with the back plate of the receiving terminal, that is, the display modules of the transmitting terminal and the receiving terminal face the same direction. Users do not need to flip the terminal and can simultaneously observe the content displayed on the transmitting terminal and the receiving terminal, greatly improving the user experience.

[0026] In addition, an adsorbing component is provided inside the terminal. The adsorbing component is used to adsorb to the magnet in the receiving terminal, so that the relative positions of the transmitting terminal and the receiving terminal can be kept stable during wireless charging, improving the reliability of wireless charging.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Brief Description of the Drawings

[0028] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. In the drawings:

[0029] Figure 1 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0030] Figure 2 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0031] Figure 3 is a schematic cross-sectional diagram of a terminal provided by an embodiment of the present disclosure;

[0032] Figure 4 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0033] Figure 5 is a schematic structural diagram of a coil provided by an embodiment of the present disclosure;

[0034] Figure 6 is a schematic structural diagram of a coil provided by an embodiment of the present disclosure.

[0035] Legend Explanation

[0036] 1. Display module;

[0037] 11. Display component; 12. First protection plate;

[0038] 111. Thin film transistor; 112. Liquid crystal screen; 113. Polarizer; 114. Second protection plate;

[0039] 121. Installation groove;

[0040] 2. Coil;

[0041] 21. FPC substrate; 22. First wire; 23. Second wire; 24. Connection wire; 20. Accommodating space;

[0042] 211. First wall surface; 212. Second wall surface; 213. First through hole; 214. Second through hole;

[0043] 241. Fixing part; 242. First connecting part; 243. Second connecting part;

[0044] 3. Inverter;

[0045] 4. Adsorbing part.

[0046] Through the above-mentioned drawings, specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0047] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.

[0048] An embodiment of the present disclosure provides a terminal, which includes a display module 1, a coil 2, an inverter 3, and an adsorbing part 4. The display module 1 includes a stacked display component 11 and a first protection plate 12. The coil 2 is located between the display component 11 and the first protection plate 12. The adsorbing part 4 is located on the side of the coil 2 away from the display component 11, is arranged opposite to the coil 2, and is connected to the first protection plate 12.

[0049] Among them, the inverter 3 is electrically connected to the battery and the coil 2 of the terminal respectively, and is used to convert the direct current output by the battery into alternating current and output it to the coil 2.

[0050] Specifically, the first protection plate 12 can be a thin aluminum plate, and the adsorbing part 4 can be a ferromagnetic material. The adsorbing part 4 is used to adsorb to the magnet in the receiving terminal.

[0051] In this way, the coil 2 is arranged inside the display module 1, so that the terminal can be used as a transmitting terminal to directly wirelessly charge the receiving terminal placed above the display module 1. During wireless charging, the display module of the transmitting terminal is attached to the backplane of the receiving terminal, that is, the display modules of the transmitting terminal and the receiving terminal face the same direction. Users can observe the content displayed on both the transmitting terminal and the receiving terminal at the same time without flipping the terminal, which greatly improves the user experience.

[0052] In addition, an adsorbing part 4 is also arranged inside the terminal. The adsorbing part 4 is used to adsorb to the magnet in the receiving terminal, so that the relative positions of the transmitting terminal and the receiving terminal can be kept stable during wireless charging, and the reliability of wireless charging is improved.

[0053] It can be understood that the size of the above-mentioned transmitting terminal is usually larger than that of the receiving terminal. Exemplarily, the transmitting terminal can be a tablet computer, a laptop computer, a display, etc. The receiving terminal can be a mobile phone, a smart watch, etc.

[0054] In some possible embodiments, the adsorbing member 4 is located between the first protection plate 12 and the coil 2.

[0055] As Figure 1 shown, both the display component 11 and the first protection plate 12 have a rectangular plate-like structure. The coil 2 is located between the display component 11 and the first protection plate 12. The adsorbing member 4 is located between the first protection plate 12 and the coil 2, is arranged opposite to the coil 2, and is connected to the first protection plate 12.

[0056] In one example, the adsorbing member 4 is adhesively bonded to the first protection plate 12.

[0057] It can be understood that other connection methods can also be used to fix the adsorbing member 4 and the first protection plate 12, such as snap connection between the adsorbing member 4 and the first protection plate 12. The embodiments of the present disclosure do not limit this.

[0058] In one example, the adsorbing member 4 has a rectangular thin plate-like structure. The adsorbing member 4 has opposite first working surface and second working surface in its thickness direction. The first working surface is adhesively bonded to the first protection plate 12. The coil 2 is fixed on the second working surface of the adsorbing member, and the connection method between the coil 2 and the second working surface can be adhesive bonding.

[0059] Furthermore, the size of the adsorbing member 4 is smaller than the size of the display module 1. The function of the adsorbing member 4 is to adsorb to the magnet in the receiving terminal, and it can meet the requirement that the back plate of the receiving terminal always closely adheres to the display module 1 of the transmitting terminal. Therefore, the size of the adsorbing member 4 does not need to be too large. On the one hand, it can reduce the overall weight of the transmitting terminal. On the other hand, it can avoid too large an adsorption force between the receiving terminal and the transmitting terminal, making it difficult for the two to separate.

[0060] In one example, referring to Figure 2 , the side of the first protection plate 12 close to the coil 2 has an installation groove 121, and at least part of the adsorbing member 4 is located in the installation groove 121.

[0061] In this way, by setting the installation groove 121, the space occupied by the adsorbing member 4 in the thickness direction of the terminal can be reduced, thereby reducing the thickness dimension of the terminal.

[0062] Specifically, referring to Figure 2 , the installation groove 121 can be a rectangular groove, and the adsorbing member 4 can be entirely located in the installation groove 121 and connected to the bottom of the installation groove 121. In this way, the thickness dimension of the terminal can be reduced to the greatest extent.

[0063] Optionally, as Figure 2As shown, the length and width of the installation groove 121 can be both greater than the length and width of the suction component 4. In this way, the weight of the first protection plate 12 can be reduced, thereby reducing the overall weight of the terminal. In addition, setting the size of the installation groove 121 to be greater than the size of the suction component 4 can improve the convenience of assembling the suction component 4 into the installation groove 121.

[0064] In one example, the coil 2 is located within the above-mentioned installation groove 121 and does not protrude from the installation groove 121.

[0065] See Figure 3 , the suction component 4 is located in the installation groove 121 and is connected to the bottom of the installation groove 121. The coil 2 is located on the side of the suction component 4 away from the bottom of the groove and is connected to the suction component 4. The display component 11 is connected to the first protection plate 12, and the display component 11 covers the notch of the installation groove 121. There is a gap between the display component 11 and the coil 2. Or rather, the depth of the installation groove 121 is greater than the sum of the thickness of the suction component 4 and the thickness of the coil 2.

[0066] In this way, by providing the installation groove 121, the coil 2 and the suction component 4 are both arranged within the installation groove 121, which can avoid the coil 2 and the suction component 4 occupying space in the thickness direction of the terminal, thereby reducing the size of the terminal in the thickness direction.

[0067] In some possible implementation manners, the suction component 4 is located on the side of the first protection plate 12 away from the coil 2 and is connected to the first protection plate 12.

[0068] As Figure 4 shown, the first protection plate 12 and the display component 11 are arranged opposite to each other. The coil 2 is located between the display component 11 and the first protection plate 12 and is connected to the first protection plate 12. The suction component 4 is located on the side of the first protection plate 12 away from the coil 2 and is connected to the first protection plate 12.

[0069] The connection manners of the coil 2, the suction component 4 and the first protection plate 12 can be the same or different. For example, they can all adopt the bonding manner. Or, the coil 2 and the first protection plate 12 adopt the bonding manner, and the suction component 4 and the first protection plate 12 adopt the snap connection manner. The embodiments of the present disclosure do not limit the connection manners of the coil 2, the suction component 4 and the first protection plate 12.

[0070] In some possible embodiments, the coil 2 is an FPC (Flexible Printed Circuit) coil. The specific structure of the coil 2 will be introduced below:

[0071] As Figure 6 shown, the coil 2 includes an FPC substrate 21, a first wire 22, a second wire 23 and a connecting wire 24.

[0072] Specifically, the FPC substrate is a component in the coil 2 that provides support for the wire. The FPC substrate is usually a film made of polyimide material, with a thickness of about 0.04 mm and good bending properties. Fixing the wire on the FPC substrate to form the coil 2 can make the coil 2 have a smaller thickness, thereby reducing the overall thickness of the terminal.

[0073] Furthermore, the first wire 22, the second wire 23, and the connecting wire 24 can be made of the same material, which is copper foil.

[0074] In one example, referring to Figure 5 and Figure 6 , the FPC substrate 21 has a thin plate-like structure, and the FPC substrate 21 has a first wall surface 211 and a second wall surface 212 that are opposite in the thickness direction. The first wire 22 has a strip-like structure and is fixed on the first wall surface 211 and spirally wound thereon.

[0075] Specifically, the first wire 22 spirally winds on the first wall surface 211 to form an accommodation space 20. The first end of the first wire 22 is located inside the accommodation space 20, and the second end of the first wire 22 is located outside the accommodation space 20. In practice, the specific shape of the accommodation space 20 is related to the layout position of the internal electrical components of the terminal. Referring to Figure 5 , the accommodation space 20 includes two connected rectangular-like spaces, and these two rectangular spaces can correspond to the radio frequency components in the terminal device, thereby reducing the influence of the coil 2 on the radio frequency components and improving the communication performance of the terminal.

[0076] As Figure 5 shown, the second wire 23 is fixed on the first wall surface 211. The second wire 23 has a strip-like structure, is located outside the accommodation space 20, and is arranged in parallel with the component of the first wire 22 located outside the accommodation space 20. The first end of the second wire 23 is arranged opposite to the first end of the first wire 22. The connection direction between the first end of the second wire 23 and the first end of the first wire 22 is perpendicular to the extension direction of the second wire 23. The second end of the second wire 23 is arranged opposite to the second end of the first wire 22. The connection direction between the second end of the second wire 23 and the first end of the first wire 22 is perpendicular to the extension direction of the second wire 23.

[0077] Referring to Figure 6, the FPC substrate 21 has a first through hole 213 and a second through hole 214 penetrating therethrough. The first through hole 213 penetrates the first wall surface 211 and the second wall surface 212, and is disposed opposite to the first end of the first wire 22. The second through hole 214 penetrates the first wall surface 211 and the second wall surface 212, and is disposed opposite to the first end of the second wire 23. The connecting wire 24 includes a fixing portion 241, a first connecting portion 242 and a second connecting portion 243. The fixing portion 241 has a strip-like structure and is fixed to the second wall surface 212. The first connecting portion 242 and the second connecting portion 243 are both located on the side of the fixing portion 241 close to the FPC substrate 21. One end of the first connecting portion 242 is connected to one end of the fixing portion 241, and the other end passes through the first through hole 213 and is connected to the first wire 22. One end of the second connecting portion 243 is connected to the other end of the fixing portion 241, and the other end passes through the second through hole 214 and is connected to the second wire 23. Under the connection action of the connecting wire 24, a loop is formed between the first wire 22 and the second wire 23.

[0078] Exemplarily, the connection manner between the first connecting portion 242 and the first wire 22 may be welding, and the connection manner between the second connecting portion 243 and the second wire 23 is welding.

[0079] In this way, the internal wiring of the coil 2 can be simplified.

[0080] Further, the inverter 3 has a first output end and a second output end. The second end of the first wire 22 is electrically connected to the first output end of the inverter 3, and the second end of the second wire 23 is electrically connected to the second output end of the inverter 3. The input end of the inverter 3 is electrically connected to the battery of the terminal.

[0081] In implementation, the battery outputs current to the inverter 3. This current is direct current. After passing through the inverter 3, the direct current is converted into alternating current and input to the coil 2 from the second ends of the first wire 22 and the second wire 23 respectively. The coil 2 generates a changing magnetic field through the principle of electromagnetic induction. This changing magnetic field acts on the coil of the receiving terminal to achieve wireless charging.

[0082] In one example, the output frequency of the inverter 3 is in the range of [1 MHz, 30 MHz].

[0083] Exemplarily, the output frequency of the inverter 3 is 13.56 MHz.

[0084] According to the experimental data, when a metallic foreign object is under the magnetic field excited by low-frequency alternating current (in the order of kHz), an obvious eddy current effect will be generated, resulting in serious heating. While when the metallic foreign object is under the magnetic field excited by high-frequency alternating current (in the order of MHz), almost no eddy current effect will be generated and the heat generation is greatly reduced. Specifically, taking a coin and a metal key as examples, after staying in the magnetic field excited by kHz-order alternating current for 30 seconds, the temperature of the coin rises by about 25 °C, and under the same working conditions, the temperature of the metal key rises by about 23 °C. While after staying in the magnetic field excited by MHz-order alternating current for 30 seconds, the temperature of the coin rises by about 1 °C, and under the same working conditions, the temperature of the metal key does not rise.

[0085] In the technical solution provided by the embodiments of the present disclosure, the output frequency of the inverter 3 is set within the range of [1 MHz, 30 MHz]. During the wireless charging process between the transmitting terminal and the receiving terminal, if there is a metallic foreign object between the transmitting terminal and the receiving terminal, the eddy current effect of the metallic foreign object can be effectively avoided, thereby avoiding the heating of the metallic foreign object and improving the safety of wireless charging.

[0086] In some possible embodiments, the coil 2 also serves as the NFC (Near Field Communication) coil of the terminal.

[0087] Specifically, the coil 2 can be electrically connected to the NFC chip of the terminal.

[0088] It can be understood that when the coil 2 also serves as the NFC coil of the terminal, a processing module is further provided in the terminal. The processing module is electrically connected to the NFC chip and the inverter respectively. The processing module can obtain the NFC start indication information and the wireless charging start indication information. When the processing module obtains the NFC start indication information, the processing module will control the NFC chip to be in the working state and control the inverter to be in the non-working state, so as to ensure that the coil 2 is only used as the NFC coil to realize the communication function. Correspondingly, when the processing module obtains the wireless charging start indication information, the processing module will control the NFC chip to be in the non-working state and control the inverter to be in the working state, so as to ensure that the coil 2 is only used as the wireless charging coil to realize the wireless charging function.

[0089] In some possible embodiments, as Figure 1 shown, the display component 11 includes a thin-film transistor 111, a liquid crystal screen 112, a polarizer 113 and a second protection plate 114 which are stacked.

[0090] Among them, the second protection plate 114 is glass.

[0091] Reference Figures 1-4, the thin film transistor 111 is located on the side of the coil 2 away from the first protection plate 12 and is connected to the first protection plate 12. The liquid crystal screen 112, the polarizer 113 and the second protection plate 114 are arranged in sequence in the first direction, and the first direction is the direction from the first protection plate 12 to the coil 2.

[0092] In implementation, a control application for adjusting the display areas of the thin film transistor 111 and the liquid crystal screen 112 is usually installed in the control system of the terminal. When the processing module of the terminal obtains the wireless charging indication information, the processing module can adjust the display areas of the thin film transistor 111 and the liquid crystal screen 112 through the control application, so that the content displayed by the display module 1 is concentrated on the area not covered by the receiving focus. Thus, during the process of the transmitting terminal wirelessly charging the receiving terminal, the user can simultaneously observe the content displayed by the transmitting terminal and the receiving terminal, thereby improving the user experience.

[0093] In the embodiments of the present disclosure, the terminal can be a tablet computer, a notebook computer, a monitor, a television, etc. The present disclosure does not make specific limitations on the specific technologies and specific device forms adopted by the terminal.

[0094] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present disclosure.

[0095] It can be understood that "a plurality of" in the present disclosure means two or more, and other quantifiers are similar. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. The singular forms of "a", "the", and "said" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0096] Furthermore, it can be understood that the terms "first", "second", etc. are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other and do not represent a specific order or importance. In fact, the expressions such as "first" and "second" can be used interchangeably completely. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0097] It can be further understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this embodiment 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.

[0098] It can be further understood that, unless otherwise clearly specified and limited, terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrally formed; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection without other components between the two, or an indirect connection through an intermediate medium, and can be the communication inside the two components or the interaction relationship between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0099] It can be further understood that although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring all the operations shown to obtain the desired result. In a specific environment, multitasking and parallel processing may be beneficial.

[0100] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the solutions disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0101] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A terminal, characterized in that: The terminal comprises a display module (1), a coil (2), an inverter (3) and an adsorption member (4); The display module (1) comprises a display assembly (11) and a first protective plate (12) stacked on top of each other; The coil (2) is located between the display component (11) and the first protection plate (12); The inverter (3) is electrically connected to the battery of the terminal and the coil (2) respectively; The adsorption member (4) is located on a side of the coil (2) away from the display assembly (11), is arranged opposite to the coil (2), and is connected to the first protection plate (12).

2. The terminal according to claim 1, characterized in that The adsorption member (4) is located between the first protection plate (12) and the coil (2).

3. The terminal according to claim 2, characterized in that: The first protective plate (12) has a mounting groove (121) on one side close to the coil (2), and the adsorption member (4) is located in the mounting groove (121).

4. The terminal according to claim 3, characterized in that: The coil (2) is located in the installation groove (121) and does not protrude from the installation groove (121).

5. The terminal according to claim 1, characterized in that: The adsorption member (4) is located on a side of the first protection plate (12) away from the coil (2).

6. The terminal according to claim 1, characterized in that: The coil (2) comprises an FPC substrate (21), a first wire (22), a second wire (23) and a connecting wire (24); The FPC substrate (21) has a thin plate-like structure, and has a first wall surface (211), a second wall surface (212), a first through hole (213), and a second through hole (214); the first wall surface (211) and the second wall surface (212) are two wall surfaces opposite to each other in the thickness direction; the first through hole (213) and the second through hole (214) respectively penetrate the first wall surface (211) and the second wall surface (212); The first conductive wire (22) and the second conductive wire (23) are respectively fixed to the first wall surface (211), and the first conductive wire (22) is spirally wound on the first wall surface (211); The connecting wire (24) comprises a fixing portion (241), a first connecting portion (242) and a second connecting portion (243); the fixing portion (241) is fixed to the second wall surface (212); one end of the first connecting portion (242) is connected to one end of the fixing portion (241), and the other end passes through the first through hole (213) to be connected to the first wire (22); one end of the second connecting portion (243) is connected to the other end of the fixing portion (241), and the other end passes through the second through hole (214) to be connected to the second wire (23).

7. The terminal according to claim 1, characterized in that: The coil (2) is electrically connected to the NFC chip of the terminal.

8. The terminal according to claim 1, characterized in that: The output frequency of the inverter (3) is within the range of [1 MHz, 30 MHz].

9. The terminal according to claim 8, characterized in that: The output frequency of the inverter (3) is 13.56 MHz.

10. The terminal according to any one of claims 1 to 9, characterized in that: The display assembly (11) comprises a stacked thin film transistor (111), a liquid crystal screen (112), a polarizer (113) and a second protective plate (114); The thin film transistor (111), the liquid crystal screen (112), the polarizer (113) and the second protective plate (114) are arranged in sequence in a direction in which the first protective plate (12) points toward the coil (2).

Images