Mobile terminal protective case

Abstract

Disclosed in the present application is a mobile terminal protective case, comprising: a protective case body; a magnetic component; and a display screen. The protective case body is provided with an accommodating cavity for accommodating a mobile terminal. The magnetic component is annular and is arranged on the protective case body. The display screen is arranged on the protective case body, and the display screen is a flexible display screen and is arranged on the side of the magnetic component facing away from the accommodating cavity.

Description

A mobile terminal protective case

[0001] This application claims priority to Chinese Patent Application No. 202421746261.3, filed on July 23, 2024, entitled "A Protective Case for a Mobile Terminal"; and,

[0002] Priority is claimed for Chinese patent application filed with the Chinese Patent Office on July 23, 2024, with application number 202421746258.1 and invention title "A Protective Case for a Mobile Terminal";

[0003] Its entire contents are incorporated herein by reference. Technical Field

[0004] This application belongs to the field of mobile terminal accessories, and in particular relates to a mobile terminal protective case. Background Technology

[0005] Mobile phones, tablets, and other similar devices are commonly used by users. Users typically use a protective case to safeguard these devices during daily use. Technical issues

[0006] Taking phone cases as an example, some phone cases have a magnetic ring on the back for magnetic attachment. However, the magnetic ring is relatively large and located in the middle of the phone case, making it difficult to incorporate other functional components within the limited space of the phone case. Technical solutions

[0007] This application provides a mobile terminal protective case, including:

[0008] The protective shell body has a receiving cavity for accommodating the mobile terminal;

[0009] A magnetic attraction component, which is ring-shaped and disposed on the protective shell body; and

[0010] The display screen is disposed on the protective shell body, and the display screen is a flexible display screen disposed on the side of the magnetic suction component away from the receiving cavity. Beneficial effects

[0011] In this embodiment, by stacking the display screen and the magnetic component, the mobile terminal protective case can be compatible with both the display screen and the magnetic component within a limited volume. Furthermore, since the display screen is located outside the magnetic component, the magnetic component will not obstruct the display content. Also, since the display screen is a thin, flexible display screen without a glass substrate, the distance between the magnetic component and the external magnetic components can be avoided, thereby ensuring the stability and reliability of the magnetic component's adsorption. Attached Figure Description

[0012] Figure 1 is a schematic diagram of a mobile terminal protective case provided in an embodiment of this application.

[0013] Figure 2 is a structural schematic diagram of the mobile terminal protective case shown in Figure 1 from another perspective.

[0014] Figure 3 is an exploded view of the mobile terminal protective case shown in Figure 2.

[0015] Figure 4 is a schematic diagram of the structure of the mobile terminal protective case after the cover plate is installed, as shown in Figure 2.

[0016] Figure 5 is an exploded view of the mobile terminal protective case shown in Figure 4.

[0017] Figure 6 is a schematic diagram of the connection structure of the control circuit board and coil shown in Figure 4.

[0018] Figure 7 is a schematic diagram of another display screen of the mobile terminal protective case provided in the embodiment of this application.

[0019] Figure 8 is a schematic diagram of the structure in which the display screen is installed on the body of the protective case of the mobile terminal shown in Figure 7.

[0020] Figure 9 is a schematic diagram of the structure of the mobile terminal protective case shown in Figure 7 after the cover plate is installed. Embodiments of the present invention

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0024] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] In the description of the embodiments of this application, the words "example" or "for example" are used to indicate exemplification, illustration, or description. Any embodiment or design described as "example" or "for example" in the embodiments of this application is not to be construed as being more preferred or having more advantages than another embodiment or design. The use of the words "example" or "for example" is intended to present relative concepts in a clear manner.

[0026] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C, then it could include A, B, C, A and B, A and C, B and C, or A and B and C.

[0027] This application provides a mobile terminal protective case, which can be a mobile phone case or a handheld tablet case. Of course, the mobile terminal protective case can also be any other type of mobile terminal, and this application does not limit this.

[0028] Please refer to Figures 1 to 3. Figure 1 is a structural schematic diagram of a mobile terminal protective case provided in an embodiment of this application. Figure 2 is a structural schematic diagram of the mobile terminal protective case shown in Figure 1 from another perspective. Figure 3 is an exploded view of the mobile terminal protective case shown in Figure 2. The mobile terminal protective case includes a protective case body 100, a magnetic suction component 200, and a display screen 400. The protective case body 100 has a receiving cavity 11 for accommodating the mobile terminal. The magnetic suction component 200 (e.g., a magnet) is ring-shaped and disposed on the protective case body 100. The display screen 400 is disposed on the protective case body 100, and the display screen 400 is a flexible display screen disposed on the side of the magnetic suction component 200 opposite to the receiving cavity 11.

[0029] In this embodiment, by stacking the display screen 400 and the magnetic component 200, the mobile terminal protective case can accommodate both the display screen 400 and the magnetic component 200 within a limited size. Furthermore, since the display screen 400 is located outside the magnetic component 200, the magnetic component 200 will not obstruct the display content of the display screen 400. Also, because the display screen 400 is a thin, flexible display screen without a glass substrate, the distance between the magnetic component 200 and external magnetic components is avoided from being too large, thus ensuring the stability and reliability of the magnetic component 200's adsorption.

[0030] It should also be noted that the magnetic attraction component 200 can be a closed ring structure or a non-closed ring structure with at least one opening in the circumferential direction. This application embodiment does not limit this.

[0031] In some implementations, the thickness of the display screen 400 is 0.2 to 0.4 millimeters, thereby ensuring that the display screen 400 is thin enough.

[0032] For example, the thickness of the display screen 400 can be 0.2 mm, 0.204 mm, 0.21 mm, 0.22 mm, 0.225 mm, 0.243 mm, 0.25 mm, 0.27 mm, 0.276 mm, 0.28 mm, 0.286 mm, 0.29 mm, 0.3 mm, 0.316 mm, 0.32 mm, 0.344 mm, 0.35 mm, 0.367 mm, 0.37 mm, 0.375 mm, 0.385 mm, 0.39 mm, 0.394 mm, or 0.4 mm. This application embodiment does not limit this.

[0033] Please refer to Figures 4 and 5. Figure 4 is a structural schematic diagram of the mobile terminal protective case shown in Figure 2 after the cover plate is installed, and Figure 5 is an exploded view of the mobile terminal protective case shown in Figure 4. In some embodiments, the protective case body 100 includes a bottom wall 12 located on one side in the thickness direction H1. The mobile terminal protective case also includes a cover plate 500 installed on the bottom wall 12. A mounting groove 121 is formed between the cover plate 500 and the protective case body 100, and the magnetic suction component 200 and the display screen 400 are both disposed within the mounting groove 121. Therefore, the cover plate 500 can provide protection for the magnetic suction component 200 and the display screen 400, and the assembly of the magnetic suction component 200 and the display screen 400 can be completed through the cooperation of the cover plate 500 and the protective case body 100, giving the mobile terminal protective case the advantage of easy assembly.

[0034] For example, the bottom wall 12 is provided with a mounting groove 121 with an opening facing the cover plate 500. This can also be understood as the opening of the mounting groove 121 being away from the receiving cavity 11 of the protective shell body 100. The cover plate 500 is mounted on the bottom wall 12 to cover the mounting groove 121. Therefore, in the actual assembly process, the magnetic component 200 and the display screen 400 can be directly inserted into the mounting groove 121 from the outside of the protective shell body 100, and then the cover plate 500 can be placed on the mounting groove 121 to complete the assembly.

[0035] Of course, in some other embodiments, the cover plate 500 may be provided with the above-mentioned mounting groove 121. After the cover plate 500 is placed on the bottom wall 12 of the protective shell body 100, the bottom wall 12 closes the mounting groove 121. This application embodiment does not limit this.

[0036] In some embodiments, the cover plate 500 is provided with a display window corresponding to the display screen 400. Thus, the cover plate 500 can provide a good protective effect for the display screen 400.

[0037] It is understood that the cover plate 500 can be a one-piece molded plate structure or it can be formed by splicing multiple plates. This application embodiment does not limit this.

[0038] It is also understood that the cover plate 500 can be made of glass, acrylic, or transparent PC (Polycarbonate), etc., and this application embodiment does not limit this.

[0039] For example, the cover plate 500 can be made of transparent material. On the plane where the cover plate 500 is located, the area where the orthographic projection of the cover plate 500 and the display screen 400 are misaligned is coated with a light-shielding coating, so that the area where the orthographic projection of the cover plate 500 and the display screen 400 overlap forms a display window.

[0040] In some embodiments, the protective housing body 100 may be provided with a camera hole 13.

[0041] Accordingly, the cover plate 500 may be provided with a clearance notch 51 to avoid the camera hole 13. For example, the clearance notch 51 may be located at one end of the cover plate 500 along the length direction H2 of the protective shell body 100.

[0042] For example, if the rear camera of a mobile terminal can be located in the upper left corner of the mobile terminal, then the camera hole 13 is also located in the upper left corner of the protective case body 100. Correspondingly, the clearance notch 51 can also be located in the upper left corner of the cover plate 500.

[0043] In some embodiments, the protective shell body 100 further includes an annular wall 14 disposed around the bottom wall 12, thereby forming a receiving cavity 11 by the bottom wall 12 and the annular wall 14.

[0044] Optionally, the protective shell body 100 may also include two side walls (not shown in the figure), and each end of the bottom wall 12 along the length direction is connected to a side wall, so that the two side walls can lock the mobile terminal from both ends of the length direction of the mobile terminal, so that the mobile terminal is accommodated in the receiving cavity 11 formed by the bottom wall 12 and the two side walls. This application embodiment does not limit this.

[0045] In some embodiments, the side of the cover plate 500 facing away from the display screen 400 forms part of the exterior surface of the mobile terminal protective case. Therefore, the distance between the magnetic component 200 and the outside of the mobile terminal protective case is mainly determined by the thickness of the display screen 400 and the thickness of the cover plate 500.

[0046] Based on this, the thickness of the cover plate 500 can be 0.2 mm to 0.4 mm, which can ensure that the cover plate 500 is thin enough to avoid the gap between the magnetic component 200 and the external magnetic component being too large, and ultimately ensure the stability and reliability of the magnetic component 200 adsorption.

[0047] For example, the thickness of the cover plate 500 can be 0.2 mm, 0.204 mm, 0.21 mm, 0.22 mm, 0.225 mm, 0.243 mm, 0.25 mm, 0.27 mm, 0.276 mm, 0.28 mm, 0.286 mm, 0.29 mm, 0.3 mm, 0.316 mm, 0.32 mm, 0.344 mm, 0.35 mm, 0.367 mm, 0.37 mm, 0.375 mm, 0.385 mm, 0.39 mm, 0.394 mm, or 0.4 mm. This application embodiment does not limit this.

[0048] In some embodiments, the total thickness of the cover plate 500 and the display screen 400 is less than or equal to 0.7 mm, thereby avoiding excessive spacing between the magnetic component 200 and the external magnetic component, and ultimately ensuring the stability and reliability of the magnetic component 200's adsorption.

[0049] For example, the total thickness of the cover plate 500 and the display screen 400 can be 0.4 mm, 0.403 mm, 0.41 mm, 0.415 mm, 0.42 mm, 0.45 mm, 0.487 mm, 0.49 mm, 0.5 mm, 0.51 mm, 0.515 mm, 0.52 mm, 0.543 mm, 0.55 mm, 0.579 mm, 0.585 mm, 0.59 mm, 0.597 mm, 0.6 mm, 0.62 mm, 0.623 mm, 0.634 mm, 0.65 mm, 0.67 mm, 0.688 mm, 0.69 mm, 0.697 mm, or 0.7 mm. This application embodiment does not limit this.

[0050] In some embodiments, the ratio of the outer diameter of the magnetic component 200 to the width of the mobile terminal protective case is greater than or equal to 0.7. Furthermore, by increasing the area of ​​the magnetic component 200, the stability and reliability of its adsorption can be improved.

[0051] For example, the ratio of the outer diameter of the magnetic component 200 to the width of the mobile terminal protective shell can be 0.7, 0.75, 0.8, 0.814, 0.85, 0.883, 0.9, 0.94, 0.95, 0.978, 0.985, 0.99 or 1, and this application embodiment does not limit it.

[0052] In some embodiments, the mobile terminal protective case also includes a circuit board assembly 300, which is disposed on the protective case body 100 and electrically connected to the display screen 400, thereby controlling the display screen 400 through the circuit board assembly 300.

[0053] In some embodiments, at least one of the magnetic suction component 200 and the display screen 400 is arranged with the circuit board assembly 300 along the length direction H2 of the protective case body 100. This allows for full utilization of the space along the length direction H2 of the protective case body 100, preventing the protective case body 100 from becoming excessively thick due to the magnetic suction component 200, circuit board assembly 300, and display screen 400 being stacked along the thickness direction H1, thereby improving the user experience.

[0054] In other words, assuming that the protective shell body 100 is layered along the thickness direction H1, the magnetic component 200 and the circuit board assembly 300 may be located on the same layer and the display screen 400 and the circuit board assembly 300 may be located on different layers, or the magnetic component 200 and the circuit board assembly 300 may be located on different layers and the display screen 400 and the circuit board assembly 300 may be located on the same layer, or the entire magnetic component 200 and the display screen 400 may be located on the same layer as the circuit board assembly 300. This application embodiment does not limit this.

[0055] Please refer to Figure 6, which is a schematic diagram of the connection structure of the control circuit board and coil shown in Figure 4. In some embodiments, the circuit board assembly 300 includes a control circuit board 31 and a radio frequency antenna 32. The control circuit board 31 is electrically connected to the display screen 400. The radio frequency antenna 32 is electrically connected to the control circuit board 31 and is used to transmit at least one of energy and information to the mobile terminal within the housing cavity 11.

[0056] For example, the radio frequency antenna 32 may be used solely to power the control circuit board 31, enabling the control circuit board 31 to power the display screen 400. The radio frequency antenna 32 may also be used solely to transmit control commands to the control circuit board 31, enabling the control circuit board 31 to control the display screen 400 to display corresponding information based on the control commands. Of course, the radio frequency antenna 32 may also simultaneously power the control circuit board 31 and transmit control commands to the circuit board assembly 300; this embodiment of the application does not limit this.

[0057] In some implementations, the radio frequency antenna 32 may include a Qi coil, an NFC (Near Field Communication) coil, and a Bluetooth antenna, etc., but this application embodiment does not limit this.

[0058] In some embodiments, the radio frequency antenna 32 includes a coil formed by winding enameled wire.

[0059] Understandably, in related technologies, the coil is typically formed from a thin copper layer on the surface of a flexible circuit board to serve as the RF antenna 32. Therefore, the thickness of the coil formed on the surface of the flexible circuit board is less than 10 micrometers. Consequently, with such a small coil thickness, the energy transfer efficiency between the RF antenna 32 and the mobile terminal is relatively low.

[0060] In contrast, in this embodiment, the wire diameter (or wire diameter) of the enameled wire used to form the coil is typically greater than the thickness of the coil formed on the surface of the flexible circuit board. For example, the wire diameter can be greater than or equal to 150 micrometers. Therefore, using enameled wire to form the coil can effectively improve the energy transmission efficiency between the RF antenna 32 and the mobile terminal.

[0061] In some implementations, the diameter of the enameled wire can be between 150 and 230 micrometers. This ensures that the enameled wire has a sufficiently large diameter to guarantee good energy transmission efficiency of the coil, while avoiding excessively large wire diameters that would result in an overly large coil and an overly thick and heavy overall protective casing for the mobile terminal.

[0062] For example, the wire diameter of the enameled wire can be 150 micrometers, 154 micrometers, 155 micrometers, 160 micrometers, 161.07 micrometers, 165.5 micrometers, 168.7 micrometers, 170 micrometers, 180 micrometers, 195 micrometers, 200 micrometers, 200.4 micrometers, 205 micrometers, 210 micrometers, 214.7 micrometers, 215.9 micrometers, 220 micrometers, 221 micrometers, 225 micrometers, or 230 micrometers. This application does not limit the diameter of the wire.

[0063] It is also understood that enameled wire has excellent conductivity and insulation properties, which can improve the energy transfer efficiency between the coil and external equipment. For example, the enameled wire can be acetal enameled wire, polyester enameled wire, polyurethane enameled wire, polyesterimide enameled wire, or polyimide enameled wire, etc., and the embodiments of this application do not limit this.

[0064] In some embodiments, the protective housing body 100 (such as the bottom wall 12 of the mounting groove 121) is provided with a positioning groove 122. The coil is embedded in the positioning groove 122.

[0065] This allows for easy and quick installation of the coil onto the protective housing body 100, and provides excellent shaping and fixing of the coil.

[0066] For example, the positioning groove 122 can be a circular groove or an elliptical groove that matches the coil; this application embodiment does not limit this.

[0067] Of course, in some other embodiments, the bottom wall 12 of the mounting groove 121 may not be provided with a positioning groove 122, and the coil may be directly pasted and fixed to the mounting groove 121. This application embodiment does not limit this.

[0068] In some embodiments, the control circuit board 31 and the radio frequency antenna 32 are arranged side by side on the same side of the protective case body 100. For example, the coil and the display screen 400 are arranged side by side on the bottom wall 12 of the protective case body 100. Thus, compared to the coil and the display screen 400 being stacked on the bottom wall 12, the mobile terminal protective case can be made thinner, thereby improving the user experience.

[0069] In some embodiments, the control circuit board 31 is provided with a wiring portion. The circuit board assembly 300 further includes a wire 33, one end of which is connected to the wiring portion. The other end of the wire 33 is connected to the radio frequency antenna 32, so that the control circuit board 31 and the radio frequency antenna 32 are electrically connected. The length of the wire 33 is greater than the distance between the wiring portion and the radio frequency antenna 32.

[0070] Therefore, it can be understood that the wire 33 has a certain length reserved. This facilitates the wiring and assembly between the control circuit board 31 and the RF antenna 32, and also allows for easy replacement of control circuit boards 31 and RF antennas 32 of different models or sizes, thus mitigating the impact of varying spacing between the wiring section and the RF antenna 32 due to the reserved length of the wire 33. Consequently, the embodiments of this application possess the advantages of easy assembly and good versatility.

[0071] In some embodiments, the conductor 33 may be integrally formed with the radio frequency antenna 32. For example, the middle part of the enameled wire is wound to form the radio frequency antenna 32, and the two ends of the enameled wire extend to form the conductor 33. This application embodiment does not limit this.

[0072] Please continue to refer to Figures 7 to 9. Figure 7 is a structural schematic diagram of another display screen of the mobile terminal protective case provided in this application embodiment. Figure 8 is a structural schematic diagram of the display screen installed on the protective case body in the mobile terminal protective case shown in Figure 7. Figure 9 is a structural schematic diagram of the mobile terminal protective case after the cover plate is installed. In some embodiments, the magnetic suction component 200 and the circuit board assembly 300 are arranged side by side on the side of the display screen 400 facing the receiving cavity 11.

[0073] Based on this, by placing both the magnetic component 200 and the circuit board assembly 300 on the inner side of the display screen 400 (i.e., the side facing the receiving cavity 11), the display screen 400 does not need to be made smaller so that the magnetic component 200 and the circuit board assembly 300 can be placed on the peripheral edge of the display screen 400, thereby increasing the screen ratio of the mobile terminal protective case.

[0074] In some embodiments, the control circuit board 31 and the radio frequency antenna 32 are arranged side by side on the side of the display screen 400 facing the receiving cavity 11.

[0075] Therefore, compared to stacking the control circuit board 31, radio frequency antenna 32 and display screen 400 along the thickness direction of the protective shell body 100, the protective shell body 100 can be avoided from being too thick, thereby improving the user experience.

[0076] In some embodiments, the display screen 400 includes a first display area 41 and a second display area 42 connected together. The second display area 42 and the camera hole 13 are arranged side by side on the same side of the first display area 41 along the length direction of the protective case body 100. Thus, the space on one side of the protective case body 100 along the width direction of the camera hole 13 can be fully utilized through the second display area 42 to increase the screen-to-body ratio of the mobile terminal protective case, thereby improving the aesthetics of the mobile terminal protective case.

[0077] In some embodiments, along the thickness direction of the protective case body 100, the orthographic projection of the magnetic attraction component 200 is located within the first display area 41, and the orthographic projection of the circuit board assembly 300 is located within the second display area 42.

[0078] It is understood that in related technologies, the camera of a mobile terminal (such as a mobile phone) is usually located in the upper left corner of the back, and the NFC coil of the mobile terminal is usually located in the upper right corner. Therefore, in this embodiment of the application, the radio frequency antenna 32 on the circuit board assembly 300 can be closer to the NFC coil of the mobile terminal, thereby improving energy transmission efficiency, and the magnetic component 200 can be closer to the center of the mobile terminal protective case, thereby improving the stability and reliability of the mobile terminal protective case when magnetically fixed.

[0079] Optionally, the display screen 400 may also have a cutout structure that is directly opposite the camera hole 13, that is, the display screen 400 may also be a punch-hole screen, thereby increasing the screen ratio of the mobile terminal protective case.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0081] The mobile terminal protective case provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A mobile terminal protective case, wherein, The mobile terminal protective case comprises: a protective case body provided with a receiving cavity for accommodating a mobile terminal; a magnetic attraction component in the shape of a ring and arranged on the protective case body; and a display screen arranged on the protective case body, the display screen being a flexible display screen and arranged on the side of the magnetic attraction component away from the receiving cavity. The thickness of the display screen is 0.2-0.4 mm.

2. The mobile terminal protective case of claim 1, wherein, The protective case body comprises a bottom wall on one side in the thickness direction, and the mobile terminal protective case further comprises a cover plate arranged on the bottom wall; 3. The mobile terminal protective case of claim 2, wherein, wherein an installation groove is formed between the cover plate and the bottom wall, and the magnetic attraction component and the display screen are arranged in the installation groove. The surface of the side of the cover plate away from the display screen forms part of the appearance of the mobile terminal protective case, and the thickness of the cover plate is 0.2-0.4 mm.

4. The mobile terminal protective case of claim 3, wherein, The total thickness of the cover plate and the display screen is less than or equal to 0.7 mm.

5. The mobile terminal protective case of claim 4, wherein, The mobile terminal protective case further comprises a circuit board assembly arranged on the protective case body, and the circuit board assembly is electrically connected to the display screen.

6. The mobile terminal protective case according to any one of claims 1 to 5, wherein, At least one of the magnetic attraction component and the display screen is arranged along the length direction of the protective case body with the circuit board assembly.

7. The mobile terminal protective case of claim 6, wherein, The circuit board assembly comprises:

8. The mobile terminal protective case of claim 6, wherein, a control circuit board electrically connected to the display screen; and a radio frequency antenna electrically connected to the control circuit board, the radio frequency antenna being used for transmitting energy and information with the mobile terminal in the receiving cavity. The control circuit board and the radio frequency antenna are arranged side by side on the same side of the protective case body.

9. The mobile terminal protective case of claim 8, wherein, The control circuit board and the radio frequency antenna are arranged side by side on the side of the display screen facing the receiving cavity.

10. The mobile terminal protective case of claim 9, wherein, The radio frequency antenna comprises a coil formed by winding an enameled wire.

11. The mobile terminal protective case of claim 8, wherein, The protective case body is provided with a positioning groove, and the coil is embedded in the positioning groove.

12. The mobile terminal protective case of claim 11, wherein, The diameter of the enameled wire is 150-230 μm.

13. The mobile terminal protective case of claim 11, wherein, The control circuit board is provided with a wiring portion, the circuit board assembly further comprises a wire, one end of the wire is connected to the wiring portion, the other end of the wire is connected to the radio frequency antenna, so that the control circuit board and the radio frequency antenna are electrically connected, and the length of the wire is greater than the distance between the wiring portion and the radio frequency antenna.

14. The mobile terminal protective case of claim 8, wherein, The magnetic attraction component and the circuit board assembly are arranged side by side on the side of the display screen facing the receiving cavity.

15. The mobile terminal protective case of claim 6, wherein, The protective case body is provided with a camera hole, the display screen comprises a first display area and a second display area connected to each other, the second display area and the camera hole are arranged side by side on the same side of the first display area along the length direction of the protective case body.

16. The mobile terminal protective case of claim 15, wherein, In the thickness direction of the protective case body, the orthogonal projection of the magnetic attraction component is located in the first display area, and the orthogonal projection of the circuit board assembly is located in the second display area.

17. The mobile terminal protective case of claim 16, wherein, The ratio of the outer diameter of the magnetic attraction component to the width of the mobile terminal protective case is greater than or equal to 0.

7.

18. The mobile terminal protective case of claim 17, wherein, The protective case body is provided with a camera hole, and the display screen is provided with a hollow structure opposite to the camera hole.

19. The mobile terminal protective case of claim 15, wherein, The mobile terminal protective case is a mobile phone protective case or a tablet computer protective case.

20. The mobile terminal protective case according to any one of claims 1 to 5, wherein, ​

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