Protective cases and electronic equipment components

Abstract

The present application provides a protective shell and an electronic device assembly. The protective shell is used to protect an electronic device, the electronic device includes an antenna, the antenna is used to support a target frequency band, and the antenna includes a main radiator; the protective shell includes a shell base and a coupling radiator; the shell base is used to be arranged on the outside of at least part of the electronic device; wherein the protective shell has a first state, when the protective shell is in the first state, at least part of the coupling radiator is located outside the shell base, and there is a distance between the at least part of the radiator and the shell base; when the protective shell is in the first state, the coupling radiator is used to couple with the main radiator and is excited to support the target frequency band. The protective shell provided in the present application includes a coupling radiator, so that when the protective shell is applied to an electronic device assembly including an electronic device, it has better antenna performance in the target frequency band.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a protective shell and an electronic device component. Background Art

[0002] With the development of technology, electronic devices with communication functions such as mobile phones are becoming more and more popular and their functions are becoming more and more powerful. Electronic devices usually include antenna components to realize the communication function of electronic devices. However, the communication performance of antenna components in electronic devices in related technologies is not good enough and there is still room for improvement. Summary of the invention

[0003] In a first aspect, an embodiment of the present application provides a protective shell for protecting an electronic device, wherein the electronic device includes an antenna, the antenna is used to support a target frequency band, and the antenna includes a main radiator; the protective shell includes:

[0004] a housing base, the housing base being arranged on at least a portion of the outer side of the electronic device; and

[0005] coupled radiators;

[0006] Wherein, the protective shell has a first state. When the protective shell is in the first state, at least part of the coupled radiator is located outside the shell base, and there is a distance between the at least part of the radiator and the shell base; when the protective shell is in the first state, the coupled radiator is used to couple with the main radiator and is excited to support the target frequency band.

[0007] In summary, the protective shell provided in the embodiment of the present application includes a shell base and a coupling radiator. The shell base is used to be arranged on the outside of at least part of the electronic device, so the shell base can play a protective role for the electronic device. When the protective shell is in the first state, the coupling radiator is used to couple with the main radiator of the electronic device, and is excited to support the target frequency band, wherein the main radiator of the electronic device also supports the target frequency band. In other words, when the protective shell is in the first state, the coupling radiator is excited by the main radiator of the electronic device to support the target frequency band that is the same as the target frequency band supported by the main radiator. Therefore, when the protective shell is applied to an electronic device component to protect the electronic device, the electronic device component to which the protective shell is applied can also have better performance in the target frequency band. Furthermore, when the protective shell is in the first state, at least part of the coupled radiator is located outside the shell base and has a distance between it and the shell base. Therefore, the coupled radiator is relatively far away from other components in the electronic device, the coupled radiator has better clearance, and the coupled radiator supports the target frequency band with better performance.

[0008] In a second aspect, an embodiment of the present application provides an electronic device component, the electronic device component comprising:

[0009] An electronic device, the electronic device comprising an antenna, the antenna being used to support a target frequency band, the antenna comprising a main radiator; and

[0010] The protective shell as described in the first aspect.

[0011] In summary, the electronic device assembly provided in the embodiment of the present application includes an electronic device and a protective shell, and the protective shell includes a shell base and a coupling radiator. The shell base is used to be arranged on the outside of at least part of the electronic device, so the shell base can play a protective role for the electronic device. When the protective shell is in a first state, the coupling radiator is used to couple with the main radiator of the electronic device and is excited to support a target frequency band, wherein the main radiator of the electronic device also supports the target frequency band. In other words, when the protective shell is in the first state, the coupling radiator is excited by the main radiator of the electronic device to support the target frequency band that is the same as the target frequency band supported by the main radiator. Therefore, when the protective shell is applied to an electronic device assembly to protect the electronic device, the electronic device assembly to which the protective shell is applied can also have better performance in the target frequency band. Furthermore, when the protective shell is in the first state, at least part of the coupled radiator is located outside the shell base and has a distance between it and the shell base. Therefore, the coupled radiator is relatively far away from other components in the electronic device, the coupled radiator has better clearance, and the coupled radiator supports the target frequency band with better performance.

[0012] In a third aspect, an embodiment of the present application provides an electronic device component, the electronic device component comprising:

[0013] An electronic device, the electronic device comprising an antenna, the antenna being used to support a target frequency band, the antenna comprising a main radiator; and

[0014] A protective shell, comprising:

[0015] a housing base, the housing base being arranged on at least a portion of the outer side of the electronic device; and

[0016] coupled radiators;

[0017] The protective shell has a first state. When the protective shell is in the first state, at least part of the coupling radiator is located outside the shell base, and there is a distance between the at least part and the shell base; when the protective shell is in the first state, the coupling radiator is used to couple with the main radiator and is excited to support the target frequency band;

[0018] The length L of the overlapping area between the coupling radiator and the main radiator satisfies: 2mm≤L≤15mm.

[0019] In summary, the electronic device assembly provided in the embodiment of the present application includes an electronic device and a protective shell. The protective shell includes a shell base and a coupling radiator. The shell base is used to be arranged on the outside of at least part of the electronic device, so the shell base can play a protective role for the electronic device. When the protective shell is in a first state, the coupling radiator is used to couple with the main radiator of the electronic device and is excited to support a target frequency band, wherein the main radiator of the electronic device also supports the target frequency band. In other words, when the protective shell is in the first state, the coupling radiator is excited by the main radiator of the electronic device to support the target frequency band that is the same as the target frequency band supported by the main radiator. Therefore, when the protective shell is applied to an electronic device assembly to protect the electronic device, it can also enable the electronic device assembly to which the protective shell is applied to have better performance in the target frequency band. Furthermore, when the protective shell is in the first state, at least part of the coupled radiator is located outside the shell base and has a distance between it and the shell base. Therefore, the coupled radiator is relatively far away from other components in the electronic device, the coupled radiator has better clearance, and the coupled radiator supports the target frequency band with better performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of a protective shell provided in an embodiment of the present application when in a first state;

[0022] Figure 2 for Figure 1 A schematic diagram of the protective case shown when applied to an electronic device component;

[0023] Figure 3 for Figure 2 An exploded schematic diagram of the electronic device components shown in;

[0024] Figure 4 for Figure 1 A schematic diagram of an antenna of an electronic device in an electronic device assembly shown in ;

[0025] Figure 5 for Figure 1 Detailed identification diagram of the protective case shown in ;

[0026] Figure 6 for Figure 5Detailed illustration of other parts of the protective shell shown in FIG.

[0027] Figure 7 for Figure 6 A schematic diagram of the dimensions of some components in the protective shell shown in FIG.

[0028] Figure 8 A schematic diagram of a protective case provided in one embodiment of the present application when applied to an electronic device component and in a horizontal state and held by both hands;

[0029] Fig. 9 A schematic diagram of a protective shell provided in an embodiment of the present application when in a second state;

[0030] Fig.10 for Fig. 9 A schematic diagram of a protective case shown in FIG. 1 being applied to an electronic device component;

[0031] Fig.11 A schematic diagram of a protective shell provided in another embodiment of the present application when in a first state;

[0032] Fig.12 for Fig.11 A schematic diagram of the protective case shown when applied to an electronic device component;

[0033] Fig.13 for Fig.12 An exploded schematic diagram of the electronic device components shown in;

[0034] Fig.14 for Fig.12 A rear view of the electronic device assembly shown in landscape orientation and held with two hands;

[0035] Fig.15 for Fig.11 A schematic diagram of another viewing angle when the electronic device assembly is in a landscape mode and is held by two hands;

[0036] Fig.16 for Fig.11 A schematic diagram of the protective case provided when in a second state;

[0037] Fig.17 for Fig.16 A schematic diagram of the protective case being applied to an electronic device component when in a second state;

[0038] Fig.18 for Fig.11 Detailed identification diagram of the middle protective shell;

[0039] Fig.19 for Fig.18 Detailed identification diagram of the protective case shown in ;

[0040] Fig. 20 is a schematic diagram of the positional relationship between the coupled radiator of the protective shell and the main radiator in the electronic device when the protective shell is in the first state;

[0041] Fig.21 for Fig. 20 Schematic diagram of other angles of the coupled radiator and the main radiator;

[0042] Fig. 22 The radiation efficiency curves when the electronic device in the related art supports the target frequency band and the electronic device component of the present application supports the target frequency band;

[0043] Fig.23 The radiation pattern in the XOY plane when the electronic device in the related art and the electronic device component of the present application support the target frequency band;

[0044] Fig.24 It is the radiation pattern on the YOZ plane when the electronic device in the related art and the electronic device component of the present application support the target frequency band.

[0045] Main component numbers

[0046] Electronic device component 1;

[0047] Protective shell 10, shell base 110, main body 111, side portion 112, first sub-side portion 1121, second sub-side portion 1122, third sub-side portion 1123, inner surface 112a;

[0048] A coupled radiator 120, a first radiating portion 121, a first sub-portion 1211, a second sub-portion 1212, a second radiating portion 122, a first end 1221, a second end 1222, and a support member 130;

[0049] Electronic device 30, antenna 310, main radiator 311, feed source S, free end 3111, ground end 3112;

[0050] Display screen 320 , middle frame 330 , frame body 331 , frame portion 332 , first sub-frame portion 3321 , second sub-frame portion 3322 , third sub-frame portion 3323 , and back cover 340 . DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. In addition, the reference to "embodiment" or "implementation method" in the present application means that the specific features, structures or characteristics described in conjunction with the embodiments or implementation methods may be included in at least one embodiment of the present application. The appearance of the phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments. It should be noted that, for ease of explanation, in the embodiments of the present application, the same reference numerals represent the same parts, and for the sake of brevity, in different embodiments, the detailed description of the same parts is omitted.

[0052] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0053] An embodiment of the present application provides a protective shell and an electronic device assembly. Next, the protective shell and the electronic device assembly provided by the embodiment of the present application are described in detail.

[0054] Please also read Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of a protective shell provided in an embodiment of the present application when in a first state; Figure 2 for Figure 1 A schematic diagram of the protective case shown when applied to an electronic device component; Figure 3 for Figure 2Schematic diagram of the exploded electronic device components shown in . The protective shell 10 is used to protect the electronic device 30. The electronic device 30 includes an antenna 310, and the antenna 310 is used to support the target frequency band. The antenna 310 includes a main radiator 311. The protective shell 10 includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30. Among them, the protective shell 10 has a first state. When the protective shell 10 is in the first state, at least part of the coupling radiator 120 is located outside the shell base 110, and there is a distance between the at least part of the radiator and the shell base 110; when the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 and is excited to support the target frequency band.

[0055] The electronic device 30 includes but is not limited to a mobile phone, telephone, television, tablet computer, camera, personal computer, laptop computer, vehicle-mounted device, watch and other wearable devices capable of transmitting and receiving electromagnetic wave signals. Next, the electronic device 30 is illustrated as a mobile phone, which is understandable and should not be construed as a limitation on the embodiments of the present application.

[0056] See also Figure 4 , Figure 4 for Figure 1 Schematic diagram of an antenna of an electronic device in an electronic device assembly shown in . The electronic device 30 includes an antenna 310, and the antenna 310 includes a main radiator 311 and a feed source S, and the feed source S is electrically connected to the main radiator 311 to excite the main radiator 311 to support a target frequency band.

[0057] The antenna 310 may be, but is not limited to, a planar inverted F-shaped antenna (PIFA), an inverted F-shaped antenna (IFA), a loop antenna (LOOP Antenna), a (TAntenna) T-shaped antenna, a left-hand antenna, or a frame antenna. Accordingly, the main radiator 311 may be, but is not limited to, a PIFA antenna radiator, an IFA antenna radiator, a LOOP antenna radiator, a T-shaped antenna radiator, or a left-hand antenna radiator. From another dimension, the main radiator 311 may be, but is not limited to, a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a print direct structuring (PDS) antenna radiator, a metal branch radiator, or a frame antenna radiator.

[0058] In the schematic diagram of this embodiment, the antenna 310 is an IFA antenna, and the main radiator 311 is an example of a frame antenna radiator. It can be understood that it should not be understood as a limitation on the antenna 310 of the electronic device 30. Specifically, the main radiator 311 includes a free end 3111 (also called an end), a ground end 3112, and a feeding point P located between the free end 3111 and the ground end 3112. The ground end 3112 is grounded. The feed source S is electrically connected to the feeding point P to excite the radiator 311 to support the target frequency band.

[0059] The target frequency band may include a Wireless Fidelity (WiFi) 5G band, a WiFi 2.4G band, or a low frequency band (LowerBand, LB), a middle high frequency band (Middle High Band, MHB), an ultra high frequency band (Ultra High Band, UWB) band, a new radio (New Radio, NR) band, a Global Positioning System (GPS) L1 band (i.e., GPS-L1 band), a GPS-L5 band, and the like. One or more of the frequency bands. Among them, the frequency band range of WiFi 5G band is 5.15GHz-5.85GHz, the range of WiFi 2.4G band is 2.4GHz-2.5GHz, the frequency band range of LB band is less than 1000MHz, the range of MHB band is greater than or equal to 1000MHz and less than 3000MHz, the range of UHB band is greater than or equal to 3000MHz and less than 10000MHz, the resonant frequency of GPS-L1 band is 1575MHz, and the resonant frequency of GPS-L5 band is 1176MHz. In this embodiment, the target frequency band is the WiFi 5G band, or the target frequency band is the WiFi 2.4G band. For example, it can be understood that it should not be understood as a limitation on the protective case 10 provided in the embodiment of the present application and the electronic device component 1 used for the protective case 10.

[0060] The protective shell 10 is also called a protective cover. The shell base 110 in the protective shell 10 is the main component for realizing the protective effect of the protective shell 10 on the electronic device 30. For example, in one embodiment, the electronic device 30 includes a display screen 320, a middle frame 330 and a back cover 340. The middle frame 330 includes a frame body 331 and a frame portion 332. The frame portion 332 is bent and connected to the periphery of the frame body 331. The display screen 320 is arranged on one side of the frame body 331, and the back cover 340 is arranged on the other side of the frame body 331. In one embodiment, the shell base 110 is arranged on the outside of the back cover 340 and the outside of the frame portion 332. It can be understood that the relationship between the shell base 110 and the electronic device 30 is only an example in which the shell base 110 is arranged on at least part of the outside of the electronic device 30 in one embodiment, and it can be understood that it should not be understood as a limitation on the embodiments of the present application.

[0061] The shell substrate 110 may be light-transmissive or opaque, and the present application does not limit the light transmittance of the shell substrate 110 of the protective shell 10. The shell substrate 110 may pass electromagnetic wave signals. For example, the shell substrate 110 of the protective shell 10 may be, but is not limited to, a material that can transmit electromagnetic wave signals, such as silicone, plastic, ceramic, or glass. The present application does not limit the material of the shell substrate 110 of the protective shell 10.

[0062] The coupled radiator 120 may be, but is not limited to, a flexible printed circuit (FPC) antenna radiator, a laser direct structuring (LDS) antenna radiator, a print direct structuring (PDS) antenna radiator, or a metal branch radiator. The present application does not limit the type of the coupled radiator 120.

[0063] The coupled radiator 120 is carried on the housing base 110 . In one embodiment, the coupled radiator 120 may be directly disposed on the housing base 110 . In another embodiment, the coupled radiator 120 is indirectly disposed on the housing base 110 .

[0064] When the protective shell 10 is in the first state, the coupling radiator 120 is coupled to the main radiator 311, and the coupling radiator 120 is excited to support the target frequency band. Therefore, when the protective shell 10 is used to protect the electronic device 30, the performance of the target frequency band supported by the electronic device component 1 is better than the performance of the target frequency band supported by the electronic device 30. In addition, when the protective shell 10 is in the first state, at least part of the coupling radiator 120 is located outside the shell base 110, and there is a gap between the coupling radiator 120 and the shell base 110. Therefore, the distance between the coupling radiator 120 and other components in the electronic device 30 is relatively far, the coupling radiator 120 has a better clearance, and the coupling radiator 120 supports the target frequency band with better performance.

[0065] In summary, the protective shell 10 provided in the embodiment of the present application includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30, so the shell base 110 can play a protective role for the electronic device 30. When the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 of the electronic device 30, and is excited to support the target frequency band, wherein the main radiator 311 of the electronic device 30 also supports the target frequency band. In other words, when the protective shell 10 is in the first state, the coupling radiator 120 is excited by the main radiator 311 of the electronic device 30 to support the target frequency band that is the same as the target frequency band supported by the main radiator 311. Therefore, when the protective shell 10 is applied to the electronic device component 1 to protect the electronic device 30, the electronic device component 1 to which the protective shell 10 is applied can also have better performance in the target frequency band. Furthermore, when the protective shell 10 is in the first state, at least part of the coupled radiator 120 is located outside the shell base 110 and has a distance between it and the shell base 110. Therefore, the coupled radiator 120 is relatively far away from other components in the electronic device 30, the coupled radiator 120 has better clearance, and the coupled radiator 120 supports the target frequency band with better performance.

[0066] See also Figure 5 , Figure 5 for Figure 1 Detailed identification diagram of the protective shell shown in . In this embodiment, the protective shell 10 further includes a support member 130. The support member 130 carries the coupled radiator 120, and the support member 130 is movably connected to the shell base 110, and the support member 130 can be unfolded relative to the shell base 110, so that the protective shell 10 is in the first state.

[0067] In this embodiment, the material of the support member 130 may be, but is not limited to, materials that can transmit electromagnetic wave signals, such as silicone, plastic, ceramic, or glass. The support member 130 may be movably connected to the housing base 110 by, but is not limited to, a hinge or a rotating shaft.

[0068] The support member 130 carries the coupled radiator 120. In other words, the coupled radiator 120 is carried by the support member 130. Since the movable member is movably connected to the housing base 110 and the support member 130 can be unfolded relative to the housing base 110, the coupled radiator 120 can move with the movement of the support member 130. The support member 130 can be unfolded relative to the housing base 110, so that at least part of the coupled radiator 120 is located outside the housing base 110, and there is a distance between the at least part of the radiator and the housing base 110, so that the protective shell 10 is in the first state.

[0069] The protective shell 10 provided in the embodiment of the present application includes a shell base 110 and a support 130. The support 130 carries the coupled radiator 120 and is movably connected to the shell base 110. Therefore, when the support 130 moves relative to the shell base 110, the position of the coupled radiator 120 relative to the shell base 110 can be driven to change, and the support 130 drives the position of the coupled radiator 120 relative to the electronic device 30 protected by the protective shell 10 to change. The protective shell 10 provided in the embodiment of the present application includes the support 130. The support 130 drives the position of the coupled radiator 120 relative to the shell base 110 to change, thereby making the protective shell 10 have the first state, which is simple and easy.

[0070] When the support member 130 is unfolded relative to the shell base 110 so that the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 and is excited to support the target frequency band. When the protective shell 10 is in the first state, at least part of the coupling radiator 120 is located outside the shell base 110 and there is a gap between the coupling radiator 120 and the shell base 110. Therefore, the distance between the coupling radiator 120 and other components in the electronic device 30 is relatively far, the coupling radiator 120 has a better clearance, and the coupling radiator 120 supports the target frequency band with better performance.

[0071] Please read further Figures 1 to 3 and Figure 5 The shell base 110 includes a main body 111 and a side portion 112. The side portion 112 is bent and connected to the periphery of the main body 111. When the protective shell 10 is in the first state, the coupled radiator 120 is arranged corresponding to the side portion 112.

[0072] In one embodiment, the main body 111 is the main part of the housing base 110. In this embodiment, when the protective shell 10 is used to protect the electronic device 30, the main body 111 is used to correspond to the back cover 340 of the electronic device 30, and the side portion 112 is used to correspond to the frame portion 332 of the electronic device 30.

[0073] In one implementation, the main radiator 311 of the antenna 310 of the electronic device 30 is disposed adjacent to the frame portion 332 , or is formed on the frame portion 332 .

[0074] When the protective shell 10 is in the first state, the coupling radiator 120 is arranged corresponding to the side portion 112. Therefore, the coupling radiator 120 can be better coupled with the frame portion 332 adjacent to the electronic device 30 or the main radiator 311 formed in the frame portion 332 of the electronic device 30, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0075] Please read further Figures 1 to 3 and Figure 5 The side portion 112 includes a first sub-side portion 1121 and a second sub-side portion 1122. The second sub-side portion 1122 is bent and connected to the first sub-side portion 1121, and the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. When the protective shell 10 is in the first state, the coupled radiator 120 is arranged corresponding to the second sub-side portion 1122.

[0076] In this embodiment, the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. Therefore, the first sub-side portion 1121 is also called the short side portion of the protective shell 10, and the second sub-side portion 1122 is also called the long side portion of the protective shell 10.

[0077] When the protective shell 10 is used to protect the electronic device 30, the frame portion 332 of the electronic device 30 includes a first sub-frame portion 3321 and a second sub-frame portion 3322. The second sub-frame portion 3322 is bent and connected to the first sub-frame portion 3321, and the length of the second sub-frame portion 3322 is greater than the length of the first sub-frame portion 3321. In one embodiment, the main radiator 311 of the antenna 310 of the electronic device 30 corresponds to the second sub-frame portion 3322 or is formed in the second sub-frame portion 3322. When the protective shell 10 is used to protect the electronic device 30, the first sub-side portion 1121 is set corresponding to the first sub-frame portion 3321, and the second sub-side portion 1122 is set corresponding to the second sub-frame portion 3322. The coupling radiator 120 is arranged corresponding to the second sub-side portion 1122. Therefore, the coupling radiator 120 can be better coupled with the main radiator 311 corresponding to the second sub-frame portion 3322 or formed in the second sub-frame portion 3322, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0078] In addition, when the coupling radiator 120 is set corresponding to the second sub-frame portion 3322, when the protective shell 10 is used to protect the electronic device 30, and when the electronic device 30 is in a horizontal state, the coupling radiator 120 is not easily blocked by the user's hand, so that when the electronic device 30 is in a horizontal state, the coupling radiator 120 of the protective shell 10 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0079] See also Figure 3 , Figure 5 and Figure 6 , Figure 6 for Figure 5 Detailed identification diagram of other parts of the protective shell shown in . The second sub-side portion 1122 has an inner surface 112a, and the inner surface 112a is used to fit the main radiator 311 of the frame portion 332 of the electronic device 30. Wherein, when the protective shell 10 is in the first state, the distance d1 from the coupled radiator 120 to the inner surface 112a satisfies: 3mm≤d1≤20mm.

[0080] For example, the distance d1 from the coupled radiator 120 to the inner surface 112a may be, but is not limited to, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm.

[0081] When the distance d1 between the coupling radiator 120 and the inner surface 112a is too large, the distance between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is far, the coupling effect between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is not good, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic wave signals in the target frequency band is poor.

[0082] When the distance d1 between the coupling radiator 120 and the inner surface 112a is too small, the distance between the coupling radiator 120 and the electronic device 30 is close, the clearance environment of the coupling radiator 120 is relatively poor, and the performance of the coupling radiator 120 in receiving and transmitting electromagnetic waves of the target frequency band is poor.

[0083] The protective shell 10 provided in the embodiment of the present application, when the protective shell 10 is in the first state, the distance d1 between the coupling radiator 120 and the inner surface 112a satisfies: 3mm≤d1≤20mm; on the one hand, the coupling effect between the coupling radiator 120 and the main radiator 311 of the electronic device 30 can be better; on the other hand, the clearance environment of the coupling radiator 120 can be relatively good. Therefore, when the protective shell 10 provided in the embodiment of the present application is in the first state, the coupling radiator 120 supports the target frequency band with better performance.

[0084] Further, in one embodiment, when the protective shell 10 is in the first state, the distance d1 from the coupled radiator 120 to the inner surface 112a satisfies: 10 mm≤d1≤14 mm.

[0085] For example, the distance d1 from the coupled radiator 120 to the inner surface 112 a may be, but is not limited to, 10 mm, 11 mm, 12 mm, 13 mm, or 14 mm.

[0086] When the distance d1 between the coupling radiator 120 and the inner surface 112a is too large, the distance between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is far, the coupling effect between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is not good, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic wave signals in the target frequency band is poor.

[0087] When the distance d1 between the coupling radiator 120 and the inner surface 112a is too small, the distance between the coupling radiator 120 and the electronic device 30 is close, the clearance environment of the coupling radiator 120 is relatively poor, and the performance of the coupling radiator 120 in receiving and transmitting electromagnetic waves of the target frequency band is poor.

[0088] The protective shell 10 provided in the embodiment of the present application, when the protective shell 10 is in the first state, the distance d1 between the coupled radiator 120 and the inner surface 112a satisfies: 10mm≤d1≤14mm; on the one hand, the coupling effect between the coupled radiator 120 and the main radiator 311 of the electronic device 30 can be better; on the other hand, the clearance environment of the coupled radiator 120 can be relatively good. Therefore, when the protective shell 10 provided in the embodiment of the present application is in the first state, the coupled radiator 120 further supports the target frequency band with better performance.

[0089] See also Figure 5 , Figure 7 and Figure 8 , Figure 7 for Figure 6 A schematic diagram of the dimensions of some components in the protective shell shown in FIG. Figure 8 A schematic diagram of a protective shell provided in one embodiment of the present application when applied to an electronic device component and in a horizontal screen state and held by both hands. The side portion 112 includes a first sub-side portion 1121 and a second sub-side portion 1122. The second sub-side portion 1122 is connected to the first sub-side portion 1121 by bending, and the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. Wherein, when the protective shell 10 is in the first state, the coupled radiator 120 is arranged corresponding to the second sub-side portion 1122. In addition, the side portion 112 also includes a third sub-side portion 1123. The third sub-side portion 1123 is connected to the second sub-side portion 1122 by bending, and the third sub-side portion 1123 is arranged opposite to the first sub-side portion 1121. The distance d2 from the coupled radiator 120 to the first sub-side portion 1121 satisfies: d2≥50 mm, and the distance d3 from the coupled radiator 120 to the third sub-side portion 1123 satisfies: d3≥50 mm.

[0090] In this embodiment, the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121, therefore, the first sub-side portion 1121 is also referred to as the short side portion of the protective shell 10, and the second sub-side portion 1122 is also referred to as the long side portion of the protective shell 10. The third sub-frame portion 3323 is connected to the second sub-frame portion 3322 by bending, and the third sub-side portion 1123 is arranged opposite to the first sub-side portion 1121. In one embodiment, the length of the third sub-side portion 1123 is less than the length of the second sub-side portion 1122. The third sub-side portion 1123 is the short side portion of the protective shell 10.

[0091] When the protective shell 10 is used to protect the electronic device 30, the frame portion 332 of the electronic device 30 includes a first sub-frame portion 3321, a second sub-frame portion 3322 and a third sub-frame portion 3323. The second sub-frame portion 3322 is connected to the first sub-frame portion 3321 by bending, and the length of the second sub-frame portion 3322 is greater than the length of the first sub-frame portion 3321. The third sub-side portion 1123 is connected to the second sub-frame portion 3322 by bending, and the third sub-frame portion 3323 is arranged opposite to the first sub-frame portion 3321. In one embodiment, the length of the third sub-frame portion 3323 is less than the length of the second sub-frame portion 3322. The third sub-frame portion 3323 is the short frame portion 332 of the electronic device 30.

[0092] In one embodiment, the main radiator 311 of the antenna 310 of the electronic device 30 corresponds to the second sub-frame portion 3322 or is formed in the second sub-frame portion 3322. When the protective shell 10 is used to protect the electronic device 30, the first sub-side portion 1121 is arranged corresponding to the first sub-frame portion 3321, the second sub-side portion 1122 is arranged corresponding to the second sub-frame portion 3322, and the third sub-side portion 1123 is arranged corresponding to the third sub-frame portion 3323. The coupling radiator 120 is arranged corresponding to the second sub-frame portion 1122, so the coupling radiator 120 can be better coupled with the main radiator 311 corresponding to the second sub-frame portion 3322 or formed in the second sub-frame portion 3322, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0093] In addition, the coupling radiator 120 is arranged corresponding to the second sub-side portion 1122, and the distance d2 from the coupling radiator 120 to the first sub-side portion 1121 satisfies: d2≥50mm, and the distance d3 from the coupling radiator 120 to the third sub-side portion 1123 satisfies: d3≥50mm; therefore, when the protective shell 10 is used to protect the electronic device 30, and when the electronic device 30 is in a horizontal state and is held by the user with both hands, the coupling radiator 120 is not easily blocked by the user's hands, so that when the electronic device 30 is in a horizontal state, the coupling radiator 120 of the protective shell 10 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0094] In one embodiment, the coupled radiator 120 is excited to generate a half-wavelength mode to support the target frequency band.

[0095] It should be noted that the “wavelength” in which the coupled radiator 120 is excited to generate a half-wavelength mode to support the target frequency band refers to the wavelength corresponding to the center frequency (also called the center frequency point) of the target frequency band.

[0096] The coupled radiator 120 is excited to generate a half-wavelength mode to support the target frequency band. Therefore, the length of the coupled radiator 120 may be half the wavelength of the target frequency band, or approximately half the wavelength of the target frequency band.

[0097] In this embodiment, the coupled radiator 120 is excited to generate a half-wavelength mode to support the target frequency band. Therefore, the coupled radiator 120 is excited by the main radiator 311 to support the target frequency band. Therefore, when the protective case 10 is applied to the electronic device component 1 to protect the electronic device 30, the electronic device component 1 to which the protective case 10 is applied can also have better performance in the target frequency band.

[0098] In one embodiment, please refer to Figure 6 , the width W of the coupled radiator 120 satisfies: 2mm≤W≤5mm.

[0099] For example, the width W of the coupled radiator 120 may be, but is not limited to, 2 mm, 3 mm, 4 mm, or 5 mm.

[0100] When the distance between the coupling radiator 120 and the main radiator 311 is constant, and the length of the portion of the coupling radiator 120 facing the main radiator 311 is constant: the smaller the width of the coupling radiator 120, the smaller the area facing the coupling radiator 120 and the main radiator 311, and the smaller the energy coupling between the coupling radiator 120 and the main radiator 311; when the width of the coupling radiator 120 is larger, the area facing the coupling radiator 120 and the main radiator 311 is larger, and the energy coupling between the coupling radiator 120 and the main radiator 311 is larger. It can be understood that when the width of the coupling radiator 120 reaches a certain extent, increasing the width of the coupling radiator 120 further cannot further increase the energy coupling between the coupling radiator 120 and the main radiator 311.

[0101] In the protective shell 10 provided in the embodiment of the present application, the width W of the coupled radiator 120 satisfies: 2mm≤W≤5mm. When the distance between the coupled radiator 120 and the main radiator 311 is constant, and the length of the portion directly facing the coupled radiator 120 and the main radiator 311 is constant, the energy coupling between the coupled radiator 120 and the main radiator 311 can be large, and when the protective shell 10 is used to protect the electronic device 30, it is also convenient for the user to hold the electronic device component 1 without touching the coupled radiator 120.

[0102] In one embodiment, the coupled radiator 120 is made of copper foil. The thickness of the coupled radiator 120 may be, but is not limited to, 0.03 mm.

[0103] In summary, an embodiment of the present application provides a protective shell 10, when the protective shell 10 is in the first state, the coupling radiator 120 is coupled with the main radiator 311 of the electronic device 30. The coupling radiator 120 is excited by the main radiator 311 to support the target frequency band. In other words, the energy of the main radiator 311 is transmitted to the coupling radiator 120, and the coupling radiator 120 then transmits the energy out. Since the coupling radiator 120 is located outside the electronic device 30, the coupling radiator 120 is also called an external antenna radiator.

[0104] Since when the protective shell 10 is in the first state, at least part of the coupled radiator 120 is located outside the shell base 110, and there is a distance between the at least part of the radiator and the shell base 110; therefore, the coupled radiator 120 is relatively far away from other components in the electronic device 30, the coupled radiator 120 has a good clearance, and the coupled radiator 120 supports the target frequency band to have a higher radiation efficiency. Therefore, when the protective shell 10 is used to protect the electronic device 30, it has better performance in the target frequency band.

[0105] In the implementation manner, the distance d2 from the coupling radiator 120 to the first sub-side portion 1121 satisfies: d2≥50mm, and the distance d3 from the coupling radiator 120 to the third sub-side portion 1123 satisfies: d3≥50mm; therefore, when the protective shell 10 is used to protect the electronic device 30, the electronic device 30 is in a horizontal state and is held by the user with both hands, the distance from the user's hands to the coupling radiator 120 is far, and the coupling radiator 120 is not easily blocked by the user's hands, so that when the electronic device 30 is in a horizontal state, the coupling radiator 120 of the protective shell 10 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0106] Please also read Fig. 9 and Fig.10 , Fig. 9 A schematic diagram of a protective shell provided in an embodiment of the present application when in a second state; Fig.10 for Fig. 9 Schematic diagram of the protective shell 10 applied to an electronic device component. In this embodiment, in addition to the first state, the protective shell 10 also has a second state. When the protective shell 10 is in the second state, the at least part of the coupled radiator 120 is attached to the housing base 110.

[0107] In this embodiment, when the protective shell 10 is in the second state, at least part of the radiator is in contact with the shell base 110, including at least part of the radiator directly in contact with the shell base 110, or at least part of the radiator indirectly in contact with the shell base 110.

[0108] In this embodiment, when the protective shell 10 further includes a support member 130, when the protective shell 10 is in the second state, the support member 130 is retracted and close to the protective shell 10. In one embodiment, when the protective shell 10 is in the first state, it is also referred to as the protective shell 10 being in an unfolded state; when the protective shell 10 is in the second state, it is also referred to as the protective shell 10 being in a folded state.

[0109] When the protective shell 10 is in the first state, the distance between the at least part of the coupled radiator 120 and the shell base 110 is a first distance; when the protective shell 10 is in the second state, the distance between the at least part of the coupled radiator 120 and the shell base 110 is a second distance, wherein the second distance is smaller than the first distance.

[0110] As can be seen from the above description, when the protective shell 10 is in the first state, the entire branch of the coupled radiator 120 is unfolded relative to the shell base 110; when the protective shell 10 is in the second state, the entire branch of the coupled radiator 120 is attached to the shell base 110. In one embodiment, when the protective shell 10 is in the first state, when the protective shell 10 is used to protect the electronic device 30, the coupled radiator 120 is parallel to the main radiator 311 of the electronic device 30, or the coupled radiator 120 is approximately parallel to the main radiator 311 of the electronic device 30.

[0111] Therefore, in one embodiment, when the protective shell 10 is in the first state, the distance between the coupled radiator 120 and the shell base 110 is a first distance; when the protective shell 10 is in the second state, the distance between the coupled radiator 120 and the shell base 110 is a second distance, wherein the second distance is smaller than the first distance.

[0112] The protective shell 10 provided in the embodiment of the present application also has a second state. When the protective shell 10 is in the second state, the at least part of the coupled radiator 120 is in contact with the housing base 110, so that when the protective shell 10 is used to protect the electronic device 30, it is convenient for the user to hold the electronic device assembly 1 by hand.

[0113] See also Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 , Fig.11 A schematic diagram of a protective shell provided in another embodiment of the present application when in a first state; Fig.12 for Fig.11 A schematic diagram of the protective case shown when applied to an electronic device component; Fig.13 for Fig.12 An exploded schematic diagram of the electronic device components shown in; Fig.14 for Fig.12 A rear view of the electronic device assembly shown in landscape orientation and held with two hands; Fig.15 for Fig.11 A schematic diagram of another viewing angle when the electronic device assembly is in a horizontal screen state and is held by both hands. In this embodiment, the coupled radiator 120 includes a first radiating portion 121 and a second radiating portion 122. The first radiating portion 121 is attached to the shell base 110, and the first radiating portion 121 is used to couple with the main radiator 311. The second radiating portion 122 includes a first end 1221 and a second end 1222, and the first end 1221 is connected to the first radiating portion 121. When the protective shell 10 is in the first state, the second end 1222 is away from the protective shell 10 compared to the first end 1221, and there is a distance between the second end 1222 and the shell base 110.

[0114] In one embodiment, the first radiation portion 121 may be, but is not limited to, a flexible printed circuit (FPC) radiation portion, a laser direct structuring (LDS) radiation portion, a print direct structuring (PDS) radiation portion, or a metal branch radiation portion. The present application does not limit the type of the first radiation portion 121.

[0115] In one embodiment, the second radiating portion 122 may be, but is not limited to, a flexible printed circuit (FPC) radiating portion, a laser direct structuring (LDS) radiating portion, a print direct structuring (PDS) radiating portion, or a metal branch radiating portion. The present application does not limit the type of the second radiating portion 122. The type of the second radiating portion 122 may be the same as or different from the type of the first radiating portion 121, which is not limited in this embodiment.

[0116] In one embodiment, the first radiating portion 121 is a copper foil, and the second radiating portion 122 is a metal strip.

[0117] The first radiating portion 121 is attached to the shell base 110 . Therefore, when the protective shell 10 is used to protect the electronic device 30 , the first radiating portion 121 is close to the main radiator 311 of the electronic device 30 , and the first radiating portion 121 can better couple the energy of the main radiator 311 .

[0118] The second radiating portion 122 includes a first end 1221 and a second end 1222, the first end 1221 is connected to the first radiating portion 121, when the protective shell 10 is in the first state, the second end 1222 is away from the protective shell 10 compared to the first end 1221, and there is the distance between the second end 1222 and the shell base 110. When the coupled radiator 120 supports the target frequency band, the second radiating portion 122 serves as the main radiating portion of the coupled radiator 120 supporting the target frequency band.

[0119] As can be seen from the above description, in the protective shell 10 provided in the embodiment of the present application, the first radiating portion 121 of the coupled radiator 120 is attached to the shell base 110. Therefore, when the protective shell 10 is used to protect the electronic device 30, the first radiating portion 121 is close to the main radiating portion of the electronic device 30, and the first radiating portion 121 can better couple the energy of the main radiator 311. The first end 1221 of the second radiating portion 122 is connected to the first radiating portion 121. Therefore, the energy coupled to the first radiating portion 121 can be transmitted to the second radiating portion 122 via the first end 1221. Since when the protective shell 10 is in the first state, the second end 1222 is away from the protective shell 10 compared to the first end 1221 and there is a distance between the second end 1222 and the shell base 110, the second radiating portion 122 has a better clearance than the first radiating portion 121. The second radiating portion 122 serves as a main radiating portion in the coupled radiator 120 that supports the target frequency band, so that the target frequency band has better performance.

[0120] For further information, please refer to Fig.11 and Fig.12 The shell base 110 includes a body portion 111 and a side portion 112. The side portion 112 is bent and connected to the periphery of the body portion 111. The first radiating portion 121 includes a first sub-portion 1211 and a second sub-portion 1212. The first sub-portion 1211 is arranged corresponding to the side portion 112, and the second sub-portion 1212 is arranged corresponding to the body portion 111. The first end 1221 of the second radiating portion 122 is connected to the second sub-portion 1212.

[0121] In one embodiment, the main body 111 is the main part of the housing base 110. In this embodiment, when the protective shell 10 is used to protect the electronic device 30, the main body 111 is used to correspond to the back cover 340 of the electronic device 30, and the side portion 112 is used to correspond to the frame portion 332 of the electronic device 30.

[0122] In one implementation, the main radiator 311 of the antenna 310 of the electronic device 30 is disposed adjacent to the frame portion 332 , or is formed on the frame portion 332 .

[0123] The first radiating portion 121 includes a first sub-portion 1211 and a second sub-portion 1212. In this embodiment, the first sub-portion 1211 and the second sub-portion 1212 are connected and form an integral structure. It can be understood that in other embodiments, the first sub-portion 1211 and the second sub-portion 1212 can be connected and do not necessarily form an integral structure.

[0124] The first sub-portion 1211 of the first radiating portion 121 is arranged corresponding to the side portion 112 , and the second sub-portion 1212 is arranged corresponding to the main body portion 111 . Therefore, the first radiating portion 121 has a relatively large coupling area and can be better coupled with the main radiator 311 of the electronic device 30 .

[0125] The first end 1221 of the second radiating portion 122 is connected to the second sub-portion 1212. Therefore, the first end 1221 of the second radiating portion 122 is arranged corresponding to the main body portion 111. When the electronic device 30 is in a horizontal screen state and is held by the user with both hands, the user's hands are not easy to touch and block the second radiating portion 122. The second radiating portion 122 serves as the main radiating portion in the coupled radiator 120 that supports the target frequency band, so that the target frequency band has better performance.

[0126] In one implementation, the second radiating portion 122 is perpendicular to the second sub-portion 1212 , or the second radiating portion 122 is approximately perpendicular to the second sub-portion 1212 .

[0127] When the second radiating portion 122 is perpendicular to the second sub-portion 1212, or the second radiating portion 122 is approximately perpendicular to the second sub-portion 1212, the second end 1222 of the second radiating portion 122 is farther from the shell base 110. Therefore, the second radiating portion 122 has a relatively good clearance. Therefore, when the protective shell 10 provided in the embodiment of the present application is in the first state, the coupled radiator 120 supports the target frequency band with good performance.

[0128] Further, in this embodiment, the coupled radiator 120 is excited to generate a quarter-wavelength mode to support the target frequency band.

[0129] It should be noted that the “wavelength” in which the coupled radiator 120 is excited to generate a quarter-wavelength mode to support the target frequency band refers to the wavelength corresponding to the center frequency (also called the center frequency point) of the target frequency band.

[0130] The quarter-wavelength mode is also called the fundamental mode, and the frequency band supported by the fundamental mode has higher radiation efficiency. The coupled radiator 120 is excited to generate the quarter-wavelength mode to support the target frequency band, so the coupled radiator 120 has higher radiation efficiency when supporting the target frequency band.

[0131] The coupled radiator 120 is excited to generate a quarter-wavelength mode to support the target frequency band, so the length of the coupled radiator 120 can be a quarter-wavelength of the target frequency band, or approximately a quarter-wavelength of the target frequency band. Therefore, the length of the coupled radiator 120 is relatively short, which facilitates the layout of the coupled radiator 120 in the protective shell 10 and is not easily held or blocked by the user.

[0132] See also Fig.16 and Fig.17 , Fig.16 for Fig.11 A schematic diagram of the protective case provided when in a second state; Fig.17 for Fig.16 Schematic diagram of the protective shell 10 being applied to an electronic device component when it is in the second state. The protective shell 10 also has a second state. When the protective shell 10 is in the second state, at least a portion of the coupled radiator 120 is in contact with the housing base 110.

[0133] In one implementation, when the protective shell 10 is in the second state, at least a portion of the coupled radiator 120 is in contact with the housing base 110 . In this implementation, the second radiating portion 122 is in contact with the housing base 110 .

[0134] In one embodiment, when the protective shell 10 is in the first state, the distance between the second end 1222 of the second radiation portion 122 and the shell base 110 is a first distance; when the protective shell 10 is in the second state, the distance between the second end 1222 of the second radiation portion 122 and the shell base 110 is a second distance, wherein the second distance is smaller than the first distance.

[0135] The protective shell 10 provided in the embodiment of the present application also has a second state. When the protective shell 10 is in the second state, the at least part of the coupled radiator 120 is in contact with the housing base 110, so that when the protective shell 10 is used to protect the electronic device 30, it is convenient for the user to hold the electronic device assembly 1 by hand.

[0136] For further information, see Fig.13 , Fig.16 and Fig.17 In one embodiment, the shell base 110 includes a body portion 111 and a side portion 112. The side portion 112 is bent and connected to the periphery of the body portion 111. When the protective shell 10 is in the first state, the coupled radiator 120 is disposed corresponding to the side portion 112.

[0137] In one implementation, the main radiator 311 of the antenna 310 of the electronic device 30 is disposed adjacent to the frame portion 332 , or is formed on the frame portion 332 .

[0138] When the protective shell 10 is in the first state, the coupling radiator 120 is arranged corresponding to the side portion 112. Therefore, the coupling radiator 120 can be better coupled with the frame portion 332 adjacent to the electronic device 30 or the main radiator 311 formed in the frame portion 332 of the electronic device 30, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0139] Please read further Figures 11 to 13 ,as well as Fig.18 and Fig.19 , Fig.18 for Fig.11 Detailed identification diagram of the middle protective shell; Fig.19 for Fig.18 The side portion 112 includes a first sub-side portion 1121 and a second sub-side portion 1122. The second sub-side portion 1122 is bent and connected to the first sub-side portion 1121, and the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. When the protective shell 10 is in the first state, the coupled radiator 120 is arranged corresponding to the second sub-side portion 1122.

[0140] In this embodiment, the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. Therefore, the first sub-side portion 1121 is also called the short side portion of the protective shell 10, and the second sub-side portion 1122 is also called the long side portion of the protective shell 10.

[0141] When the protective shell 10 is used to protect the electronic device 30, the frame portion 332 of the electronic device 30 includes a first sub-frame portion 3321 and a second sub-frame portion 3322. The second sub-frame portion 3322 is bent and connected to the first sub-frame portion 3321, and the length of the second sub-frame portion 3322 is greater than the length of the first sub-frame portion 3321. In one embodiment, the main radiator 311 of the antenna 310 of the electronic device 30 corresponds to the second sub-frame portion 3322 or is formed in the second sub-frame portion 3322. When the protective shell 10 is used to protect the electronic device 30, the first sub-side portion 1121 is set corresponding to the first sub-frame portion 3321, and the second sub-side portion 1122 is set corresponding to the second sub-frame portion 3322. The coupling radiator 120 is arranged corresponding to the second sub-side portion 1122. Therefore, the coupling radiator 120 can be better coupled with the main radiator 311 corresponding to the second sub-frame portion 3322 or formed in the second sub-frame portion 3322, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0142] In addition, when the coupling radiator 120 is set corresponding to the second sub-frame portion 3322, when the protective shell 10 is used to protect the electronic device 30, and when the electronic device 30 is in a horizontal state, the coupling radiator 120 is not easily blocked by the user's hand, so that when the electronic device 30 is in a horizontal state, the coupling radiator 120 of the protective shell 10 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0143] The side portion 112 includes a first sub-side portion 1121 and a second sub-side portion 1122. The second sub-side portion 1122 is connected to the first sub-side portion 1121 by bending, and the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121. When the protective shell 10 is in the first state, the coupling radiator 120 is arranged corresponding to the second sub-side portion 1122. In addition, the side portion 112 also includes a third sub-side portion 1123. The third sub-side portion 1123 is connected to the second sub-side portion 1122 by bending, and the third sub-side portion 1123 is arranged opposite to the first sub-side portion 1121. The distance d2 from the coupling radiator 120 to the first sub-side portion 1121 satisfies: d2≥50mm, and the distance d3 from the coupling radiator 120 to the third sub-side portion 1123 satisfies: d3≥50mm.

[0144] In this embodiment, the length of the second sub-side portion 1122 is greater than the length of the first sub-side portion 1121, therefore, the first sub-side portion 1121 is also referred to as the short side portion of the protective shell 10, and the second sub-side portion 1122 is also referred to as the long side portion of the protective shell 10. The third sub-frame portion 3323 is connected to the second sub-frame portion 3322 by bending, and the third sub-side portion 1123 is arranged opposite to the first sub-side portion 1121. In one embodiment, the length of the third sub-side portion 1123 is less than the length of the second sub-side portion 1122. The third sub-side portion 1123 is the short side portion of the protective shell 10.

[0145] When the protective shell 10 is used to protect the electronic device 30, the frame portion 332 of the electronic device 30 includes a first sub-frame portion 3321, a second sub-frame portion 3322 and a third sub-frame portion 3323. The second sub-frame portion 3322 is connected to the first sub-frame portion 3321 by bending, and the length of the second sub-frame portion 3322 is greater than the length of the first sub-frame portion 3321. The third sub-side portion 1123 is connected to the second sub-frame portion 3322 by bending, and the third sub-frame portion 3323 is arranged opposite to the first sub-frame portion 3321. In one embodiment, the length of the third sub-frame portion 3323 is less than the length of the second sub-frame portion 3322. The third sub-frame portion 3323 is the short frame portion 332 of the electronic device 30.

[0146] In one embodiment, the main radiator 311 of the antenna 310 of the electronic device 30 corresponds to the second sub-frame portion 3322 or is formed in the second sub-frame portion 3322. When the protective shell 10 is used to protect the electronic device 30, the first sub-side portion 1121 is arranged corresponding to the first sub-frame portion 3321, the second sub-side portion 1122 is arranged corresponding to the second sub-frame portion 3322, and the third sub-side portion 1123 is arranged corresponding to the third sub-frame portion 3323. The coupling radiator 120 is arranged corresponding to the second sub-frame portion 1122, so the coupling radiator 120 can be better coupled with the main radiator 311 corresponding to the second sub-frame portion 3322 or formed in the second sub-frame portion 3322, and the coupling radiator 120 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0147] In addition, please refer to Fig.18 and Fig.19, the coupling radiator 120 is arranged corresponding to the second sub-side portion 1122, and the distance d2 from the coupling radiator 120 to the first sub-side portion 1121 satisfies: d2≥50mm, and the distance d3 from the coupling radiator 120 to the third sub-side portion 1123 satisfies: d3≥50mm; therefore, when the protective shell 10 is used to protect the electronic device 30, and when the electronic device 30 is in a horizontal state and is held by the user with both hands, the coupling radiator 120 is not easily blocked by the user's hands, so that when the electronic device 30 is in a horizontal state, the coupling radiator 120 of the protective shell 10 can be better excited by the main radiator 311 of the electronic device 30 to support the target frequency band.

[0148] Please also read Figure 2 and Figure 3 ,or Fig.12 and Fig.13 , the electronic device assembly 1 includes an electronic device 30 and a protective shell 10 as described in any of the above. The electronic device 30 includes an antenna 310, the antenna 310 is used to support the target frequency band, and the antenna 310 includes a main radiator 311. The protective shell 10 includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30. Among them, the protective shell 10 has a first state, when the protective shell 10 is in the first state, at least part of the coupling radiator 120 is located outside the shell base 110, and there is a distance between the at least part of the radiator and the shell base 110; when the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 and is excited to support the target frequency band.

[0149] In summary, the electronic device assembly 1 provided in the embodiment of the present application includes an electronic device 30 and a protective shell 10. The protective shell 10 includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30, so the shell base 110 can play a protective role for the electronic device 30. When the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 of the electronic device 30, and is excited to support the target frequency band, wherein the main radiator 311 of the electronic device 30 also supports the target frequency band. In other words, when the protective shell 10 is in the first state, the coupling radiator 120 is excited by the main radiator 311 of the electronic device 30 to support the target frequency band that is the same as the target frequency band supported by the main radiator 311. Therefore, when the protective shell 10 is applied to the electronic device assembly 1 to protect the electronic device 30, the electronic device assembly 1 to which the protective shell 10 is applied can also have better performance in the target frequency band. Furthermore, when the protective shell 10 is in the first state, at least part of the coupled radiator 120 is located outside the shell base 110 and has a distance between it and the shell base 110. Therefore, the coupled radiator 120 is relatively far away from other components in the electronic device 30, the coupled radiator 120 has better clearance, and the coupled radiator 120 supports the target frequency band with better performance.

[0150] For further information, see Figure 2 , Figure 3 , Fig. 20 and Fig.21 , Fig. 20 is a schematic diagram of the positional relationship between the coupled radiator of the protective shell and the main radiator in the electronic device when the protective shell is in the first state; Fig.21 for Fig. 20 Schematic diagram of another angle between the coupled radiator and the main radiator. It can be understood that Fig. 20In the figure, part of the structure of the protective shell and part of the structure of the electronic device are omitted. The electronic device assembly 1 includes an electronic device 30 and a protective shell 10. The electronic device 30 includes an antenna 310, and the antenna 310 is used to support the target frequency band. The antenna 310 includes a main radiator 311. The protective shell 10 includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30. Among them, the protective shell 10 has a first state. When the protective shell 10 is in the first state, at least part of the coupling radiator 120 is located outside the shell base 110, and there is a gap between the at least part and the shell base 110; when the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 and is excited to support the target frequency band. The length L of the overlapping area of ​​the coupling radiator 120 and the main radiator 311 satisfies: 2mm≤L≤15mm.

[0151] In summary, the protective shell 10 provided in the embodiment of the present application includes a shell base 110 and a coupling radiator 120. The shell base 110 is used to be arranged on the outside of at least part of the electronic device 30, so the shell base 110 can play a protective role for the electronic device 30. When the protective shell 10 is in the first state, the coupling radiator 120 is used to couple with the main radiator 311 of the electronic device 30, and is excited to support the target frequency band, wherein the main radiator 311 of the electronic device 30 also supports the target frequency band. In other words, when the protective shell 10 is in the first state, the coupling radiator 120 is excited by the main radiator 311 of the electronic device 30 to support the target frequency band that is the same as the target frequency band supported by the main radiator 311. Therefore, when the protective shell 10 is applied to the electronic device component 1 to protect the electronic device 30, the electronic device component 1 to which the protective shell 10 is applied can also have better performance in the target frequency band. Furthermore, when the protective shell 10 is in the first state, at least part of the coupled radiator 120 is located outside the shell base 110 and has a distance between it and the shell base 110. Therefore, the coupled radiator 120 is relatively far away from other components in the electronic device 30, the coupled radiator 120 has better clearance, and the coupled radiator 120 supports the target frequency band with better performance.

[0152] In one embodiment, the main radiator 311 includes a free end and a ground end. The portion where the coupling radiator 120 overlaps with the main radiator 311 includes the free end. It is understandable that in other embodiments, this is not limited to this. The free end of the main radiator 311 is also referred to as the end of the main radiator 311. The portion where the coupling radiator 120 overlaps with the main radiator 311 includes the free end, which is also referred to as the end setting of the coupling radiator 120 corresponding to the main radiator 311.

[0153] The length L of the overlapping area between the coupling radiator 120 and the main radiator 311 may be, but is not limited to, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 10.4 mm, 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm.

[0154] When the distance between the coupling radiator 120 and the main radiator 311 is constant, and the width of the coupling radiator 120 facing the main radiator 311 is constant: the smaller the length of the overlapping area between the coupling radiator 120 and the main radiator 311, the smaller the area facing the coupling radiator 120 and the main radiator 311, and the smaller the energy coupling between the coupling radiator 120 and the main radiator 311; when the length of the overlapping area between the coupling radiator 120 and the main radiator 311 is larger, the larger the area facing the coupling radiator 120 and the main radiator 311, and the larger the energy coupling between the coupling radiator 120 and the main radiator 311. It can be understood that when the length of the overlapping area between the coupling radiator 120 and the main radiator 311 reaches a certain extent, further increasing the overlapping area between the coupling radiator 120 and the main radiator 311 can no longer increase the energy coupling between the coupling radiator 120 and the main radiator 311.

[0155] In the electronic device component 1 provided in the embodiment of the present application, the length L of the overlapping area between the coupled radiator 120 and the main radiator 311 satisfies: 2mm≤L≤15mm. When the distance between the coupled radiator 120 and the main radiator 311 is constant, and the facing width between the coupled radiator 120 and the main radiator 311 is constant, the energy coupling between the coupled radiator 120 and the main radiator 311 can be large, and when the protective shell 10 is used to protect the electronic device 30, it is also convenient for the user to hold the electronic device component 1 without touching the coupled radiator 120.

[0156] Please continue reading Fig. 20In one embodiment, when the protective shell 10 is in the first state, the distance D between the coupled radiator 120 and the main radiator 311 satisfies: 3mm≤D≤20mm.

[0157] The distance D between the coupled radiator 120 and the main radiator 311 may be, but is not limited to, 3 mm, or 4 mm, or 5 mm, or 6 mm, or 7 mm, or 8 mm, or 9 mm, or 10 mm, or 11 mm, or 12 mm, or 13 mm, or 14 mm, or 15 mm, or 16 mm, or 17 mm, or 18 mm, or 19 mm, or 20 mm.

[0158] When the distance D between the coupling radiator 120 and the main radiator 311 is too large, the distance between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is far, the coupling effect between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is not good, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic wave signals in the target frequency band is poor.

[0159] When the distance D between the coupling radiator 120 and the main radiator 311 is too small, the distance between the coupling radiator 120 and the electronic device 30 is relatively close, the clearance environment of the coupling radiator 120 is relatively poor, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic waves and signals in the target frequency band is poor.

[0160] In the electronic device assembly 1 provided in the embodiment of the present application, when the protective shell 10 is in the first state, the distance D between the coupled radiator 120 and the main radiator 311 satisfies: 3mm≤D≤20mm; on the one hand, the coupling effect between the coupled radiator 120 and the main radiator 311 of the electronic device 30 can be better; on the other hand, the clearance environment of the coupled radiator 120 can be relatively good. Therefore, in the electronic device assembly 1 provided in the embodiment of the present application, when the protective shell 10 is in the first state, the coupled radiator 120 supports the target frequency band with better performance.

[0161] Further, in one embodiment, when the protective shell 10 is in the first state, a distance D between the coupled radiator 120 and the main radiator 311 satisfies: 10 mm≤D≤14 mm.

[0162] For example, the distance D between the coupling radiator 120 and the main radiator 311 may be, but is not limited to, 10 mm, 11 mm, 12 mm, 13 mm, or 14 mm.

[0163] When the distance D between the coupling radiator 120 and the main radiator 311 is too large, the distance between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is far, the coupling effect between the coupling radiator 120 and the main radiator 311 of the electronic device 30 is not good, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic wave signals in the target frequency band is poor.

[0164] When the distance D between the coupling radiator 120 and the main radiator 311 is too small, the distance between the coupling radiator 120 and the electronic device 30 is relatively close, the clearance environment of the coupling radiator 120 is relatively poor, and the performance of the coupling radiator 120 in transmitting and receiving electromagnetic waves and signals in the target frequency band is poor.

[0165] In the electronic device assembly 1 provided in the embodiment of the present application, when the protective shell 10 is in the first state, the distance D between the coupled radiator 120 and the main radiator 311 satisfies: 10mm≤D≤14mm; on the one hand, the coupling effect between the coupled radiator 120 and the main radiator 311 of the electronic device 30 can be better; on the other hand, the clearance environment of the coupled radiator 120 can be relatively good. Therefore, when the protective shell 10 provided in the embodiment of the present application is in the first state, the coupled radiator 120 further supports the target frequency band with better performance.

[0166] In one embodiment, the protective shell 10 further has a second state. When the protective shell 10 is in the second state, at least a portion of the coupled radiator 120 is in contact with the housing base 110 .

[0167] In the electronic device assembly 1 provided in the embodiment of the present application, the protective shell 10 also has a second state. When the protective shell 10 is in the second state, the at least part of the coupled radiator 120 is in contact with the housing base 110, so that when the protective shell 10 is used to protect the electronic device 30, it is convenient for the user to hold the electronic device assembly 1 by hand.

[0168] In summary, an embodiment of the present application provides a protective shell 10 and an electronic device assembly 1. In one embodiment, when the protective shell 10 is in the first state, the distance between the coupling radiator 120 and the main radiator 311 is 12 mm, the width of the coupling radiator 120 is 2 mm, and the length of the overlapping area between the coupling radiator 120 and the main radiator 311 is 10.4 mm. In one embodiment, the coupling radiator 120 is arranged corresponding to the end of the main radiator 311. In this way, the coupling between the coupling radiator 120 of the protective shell 10 and the main radiator 311 in the electronic device assembly 1 provided in the embodiment of the present application is better, so that the coupling radiator 120 supports the target frequency band with better performance.

[0169] The protective case 10 and the electronic device assembly 1 provided in the embodiment of the present application can effectively solve the problem of game stuttering and / or jamming when the electronic device 30 is in a horizontal screen gaming scenario.

[0170] The protective case 10 and the electronic device assembly 1 provided in the embodiment of the present application, wherein the protective case 10 includes a coupled radiator 120, which can improve the performance of the antenna 310 in the target frequency band and can avoid the influence of the user's hands, thereby effectively improving the gaming experience of the electronic device 30 in a horizontal screen state and in a gaming scenario.

[0171] Next, the performance of the electronic device component 1 provided in the embodiment of the present application and the electronic device 30 in the related art in supporting the target frequency band is simulated and described.

[0172] See also Fig. 22 , Fig. 22 It is the radiation efficiency curve when the electronic device in the related technology supports the target frequency band and the electronic device component of the present application supports the target frequency band. Among them, the horizontal axis is frequency, the unit is GHz, and the vertical axis is radiation efficiency, the unit is dB. Among them, the black curve with the mark point "2" in the figure is the radiation efficiency curve when the electronic device 30 supports the target frequency band; the red curve with the mark point "1" in the figure is the radiation efficiency curve when the electronic device component 1 supports the target frequency band. It can be seen that the radiation efficiency of the electronic device component 1 including the protective shell 10 supporting the target frequency band is higher. It should be noted that in Fig. 22 There are several light grey lines, which are the radiation efficiencies of other antennas of the electronic device 30 and have nothing to do with the antenna 310 supporting the target frequency band provided in the embodiment of the present application.

[0173] In actual tests, the radiation efficiency of the antenna 310 (also referred to as a single antenna 310) of the electronic device assembly 1 including the protective case 10 in the target frequency band is improved by more than 2dB. In addition, when the electronic device 30 and the electronic device assembly 1 are both running the same game for real network testing, the game delay of the electronic device assembly 1 including the protective case 10 in the embodiment of the present application is reduced by 30%. In weak network and congested scenarios, the game delay of the electronic device assembly 1 including the protective case 10 in the embodiment of the present application is greatly reduced.

[0174] See also Fig.23 , Fig.23 It is the radiation pattern on the XOY plane when the electronic device in the related art and the electronic device component of the present application support the target frequency band. Fig.23 (a) is a color image. Fig.23 (b) in Fig.23 Grayscale image of (a) in . Fig.23 The diagram includes a large diagram in the center and a small diagram in the upper right corner. The small diagram illustrates the posture of the electronic device assembly 1 or the electronic device 30, and the large diagram illustrates the radiation direction curve of the electronic device assembly 1 or the electronic device 30 in the posture. Fig.23 The green curve in the large figure in the middle of (a) is the radiation pattern when the electronic device 30 supports the target frequency band; Fig.23 The red curve in the large figure in the center of (a) is the radiation pattern when the electronic device component 1 supports the target frequency band. It can be seen from this simulation diagram that the radiation pattern of the electronic device component 1 provided by the embodiment of the present application in the target frequency band is more directional, the energy is more concentrated, and the gain in the maximum direction is about 7dB (specifically, the difference between 3.336 at point 1 and -3.643 at point 2), and the influence of the hands and body in this direction is minimal.

[0175] See also Fig.24 , Fig.24 It is the radiation pattern on the YOZ plane when the electronic device in the related art and the electronic device component of the present application support the target frequency band. Fig.24 (a) is a color image. Fig.24 (b) in Fig.24 The grayscale image of (a) in . Among them, Fig.24 The diagram includes a large diagram in the center and a small diagram in the upper right corner. The small diagram illustrates the posture of the electronic device assembly 1 or the electronic device 30, and the large diagram illustrates the radiation direction curve of the electronic device assembly 1 or the electronic device 30 in the posture. Fig.24 The green curve in the large figure in the middle of (a) is the radiation pattern when the electronic device 30 supports the target frequency band; Fig.24The red curve in the large figure in the center of (a) is the radiation pattern when the electronic device component 1 supports the target frequency band. It can be seen from this simulation diagram that the radiation pattern of the electronic device component 1 provided in the embodiment of the present application in the target frequency band is more directional, the energy is more concentrated, and there is a gain of more than 7dB (specifically, the difference between 3.356 at point 1 and -3.824 at point 2) in the maximum direction, and the influence of the hands and the body in this direction is minimal.

[0176] In summary, the protective case 10 and the protective case 10 of the electronic device assembly 1 provided in the embodiment of the present application are a signal-enhanced antenna technology that can solve the pain point problem of lag in a game scene when the user uses the electronic device 30 in a horizontal screen state. The shape and position of the coupled radiator 120 of the protective case 10 may not be limited to the above description.

[0177] In other embodiments, the shape and position of the coupling radiator 120 of the protective shell 10 may also be designed in a variety of ways. For example, the coupling radiator 120 includes a plurality of retractable sub-radiating portions. When the protective shell 10 is in the first state, the plurality of sub-radiating portions are unfolded; when the protective shell 10 is in the second state, the plurality of sub-radiating portions are retracted into the shell base 110 of the protective shell 10.

[0178] In an embodiment, the coupling radiator 120 may be detachable from the housing base 110. Whether the coupling radiator 120 is installed to the housing base 110 is determined according to user needs. For example, when the electronic device 30 is in a landscape mode, the coupling radiator 120 is installed to the housing base 110 and coupled to the main radiator 311 of the electronic device 30. When the electronic device 30 is used in a portrait mode, the coupling radiator 120 is removed from the housing base 110.

[0179] In addition, the shape of the coupled radiator 120 may be various. For example, the shape of the coupled radiator 120 may be square, circular, arc-shaped, elliptical, etc.

[0180] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A protective shell for protecting an electronic device, wherein the electronic device comprises an antenna, the antenna is used to support a target frequency band, and the antenna comprises a main radiator; characterized in that: The protective shell comprises: a housing base, the housing base being arranged on at least a portion of the outer side of the electronic device; and coupled radiators; Wherein, the protective shell has a first state. When the protective shell is in the first state, at least part of the coupled radiator is located outside the shell base, and there is a distance between the at least part of the radiator and the shell base; when the protective shell is in the first state, the coupled radiator is used to couple with the main radiator and is excited to support the target frequency band.

2. The protective case according to claim 1, characterized in that: The protective shell also includes: A support member, wherein the support member carries the coupled radiator, the support member is movably connected to the shell base, and the support member can be unfolded relative to the shell base so that the protective shell is in the first state.

3. The protective case according to claim 2, characterized in that: The housing substrate comprises: the main body; and A side portion, wherein the side portion is bent and connected to the periphery of the main body portion; Wherein, when the protective shell is in the first state, the coupled radiator is arranged corresponding to the side portion.

4. The protective case according to claim 3, characterized in that: The side portion comprises: a first sub-side portion; and a second sub-side portion, wherein the second sub-side portion is connected to the first sub-side portion by bending, and the length of the second sub-side portion is greater than the length of the first sub-side portion; Wherein, when the protective shell is in the first state, the coupled radiator is arranged corresponding to the second sub-side portion.

5. The protective case according to claim 4, characterized in that: The second sub-side portion has an inner surface, and the inner surface is used to fit the main radiator of the frame portion of the electronic device; Wherein, when the protective shell is in the first state, the distance d1 from the coupled radiator to the inner surface satisfies: 3mm≤d1≤20mm.

6. The protective case according to claim 4, characterized in that: The side portion also includes: a third sub-side portion, wherein the third sub-side portion is connected to the second sub-side portion by bending, and the third sub-side portion is arranged opposite to the first sub-side portion; The distance d2 from the coupled radiator to the first sub-side portion satisfies: d2≥50 mm, and the distance d3 from the coupled radiator to the third sub-side portion satisfies: d3≥50 mm.

7. The protective case according to claim 1, characterized in that: The coupled radiator is excited to generate a half-wavelength mode to support the target frequency band.

8. The protective case according to claim 1, characterized in that: The width W of the coupled radiator satisfies: 2mm≤W≤5mm.

9. The protective case according to claim 1, characterized in that: The coupled radiator comprises: A first radiating portion, the first radiating portion is attached to the housing base, and the first radiating portion is used to couple with the main radiator; and The second radiating portion includes a first end and a second end, the first end is connected to the first radiating portion, and when the protective shell is in the first state, the second end is away from the protective shell compared to the first end and there is a distance between the second end and the shell base.

10. The protective case according to claim 9, characterized in that: The housing substrate comprises: the main body; and A side portion, wherein the side portion is bent and connected to the periphery of the main body portion; The first radiating portion includes a first sub-portion and a second sub-portion, the first sub-portion is arranged corresponding to the side portion, and the second sub-portion is arranged corresponding to the main body portion; the first end of the second radiating portion is connected to the second sub-portion.

11. The protective case according to claim 9, characterized in that: The coupled radiator is excited to generate a quarter-wavelength mode to support the target frequency band.

12. The protective case according to claim 1, characterized in that: The protective shell also has a second state. When the protective shell is in the second state, the at least part of the coupled radiator is in contact with the housing base.

13. An electronic device component, characterized in that: The electronic device assembly comprises: An electronic device, the electronic device comprising an antenna, the antenna being used to support a target frequency band, the antenna comprising a main radiator; and A protective shell as described in any one of claims 1 to 12.

14. An electronic device component, characterized in that: The electronic device assembly comprises: An electronic device, the electronic device comprising an antenna, the antenna being used to support a target frequency band, the antenna comprising a main radiator; and A protective shell, comprising: a housing base, the housing base being arranged on at least a portion of the outer side of the electronic device; and coupled radiators; The protective shell has a first state. When the protective shell is in the first state, at least part of the coupling radiator is located outside the shell base, and there is a distance between the at least part and the shell base; when the protective shell is in the first state, the coupling radiator is used to couple with the main radiator and is excited to support the target frequency band; The length L of the overlapping area between the coupling radiator and the main radiator satisfies: 2mm≤L≤15mm.

15. The electronic device assembly according to claim 14, wherein: When the protective shell is in the first state, a distance D between the coupled radiator and the main radiator satisfies: 3 mm ≤ D ≤ 20 mm.

16. The electronic device assembly of claim 14, wherein: The protective shell also has a second state. When the protective shell is in the second state, the at least part of the coupled radiator is in contact with the housing base.

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