Electronic equipment

Abstract

The invention relates to electronic equipment, which comprises a first folding part and a second folding part, and is characterized in that the first folding part is provided with a first antenna radiator; the second folding part can be folded or unfolded relative to the first folding part, a second antenna radiator and a switch assembly are arranged on the second folding part, the first antenna radiator and the second antenna radiator are opposite in the folding state, and the switch assembly is used for controlling the current flowing direction of the second antenna radiator. According to the design, the radiation frequency of the first antenna radiator and the second antenna radiator can be ensured while the absorption of antenna radiation by a human body is reduced, so that the signal quality of the electronic equipment is ensured. Besides, the electronic equipment provided by the invention does not need an SAR (Synthetic Aperture Radar) induction antenna radiator, so that the design forms and working modes of the first antenna radiator and the second antenna radiator are not limited, and the application flexibility of the first antenna radiator and the second antenna radiator is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of terminals, and in particular, to an electronic device. BACKGROUND

[0002] In order to reduce the influence of electromagnetic radiation of an electronic device such as a foldable mobile phone on human health, the specific absorption rate (SAR) of the electronic device needs to be detected to avoid exceeding the SAR. However, the manner of avoiding exceeding the SAR in the related art not only reduces the radiation frequency of the antenna, but also limits the design form and working mode of the antenna. SUMMARY

[0003] To overcome the problems in the related art, the present disclosure provides an electronic device.

[0004] The present disclosure provides an electronic device, which includes a first folding part provided with a first antenna radiator, a second folding part capable of being folded or unfolded relative to the first folding part, the second folding part being provided with a second antenna radiator and a switch assembly, in a folded state, the first antenna radiator and the second antenna radiator are opposite to each other, and the switch assembly is used to control the current direction of the second antenna radiator.

[0005] In some embodiments of the present disclosure, the first antenna radiator and the second antenna radiator are both in a strip shape, and the extension direction of the first antenna radiator is the same as the extension direction of the second antenna radiator, in the folded state, the first antenna radiator and the second antenna radiator at least partially overlap, and the switch assembly is electrically connected to both ends of the second antenna radiator.

[0006] In some embodiments of the present disclosure, the switch assembly includes a first switch unit connected between a first end of the second antenna radiator and a ground end, and a second switch unit connected between a second end of the second antenna radiator and the ground end.

[0007] In some embodiments of the present disclosure, the first switch unit comprises a first selection switch, a fixed end of the first selection switch is grounded, a first selection end of the first selection switch is connected with the first end of the second antenna radiator through a first inductor, and a second selection end of the first selection switch is connected with the first end of the second antenna radiator through a first resistor; and / or, the second switch unit comprises a second selection switch, a fixed end of the second selection switch is grounded, a third selection end of the second selection switch is connected with the second end of the second antenna radiator through a second inductor, and a fourth selection end of the second selection switch is connected with the second end of the second antenna radiator through a second resistor.

[0008] In some embodiments of the present disclosure, the first resistor and the second resistor are both 0 ohm.

[0009] In some embodiments of the present disclosure, in the folded state, the overlapping area of the first antenna radiator and the second antenna radiator is greater than or equal to 50%.

[0010] In some embodiments of the present disclosure, the electronic device further comprises a first middle frame and a second middle frame capable of relative folding and opening, the first middle frame constitutes the first folding part, the second middle frame constitutes the second folding part, the first middle frame comprises a first bezel, the second middle frame comprises a second bezel, in the folded state, the first bezel is opposite to the second bezel, at least part of the first bezel constitutes the first antenna radiator, and at least part of the second bezel constitutes the second antenna radiator.

[0011] In some embodiments of the present disclosure, the first bezel is provided with a first slit and a second slit respectively at positions corresponding to two ends of the first antenna radiator, and the second bezel is provided with a third slit and a fourth slit respectively at positions corresponding to two ends of the second antenna radiator, in the folded state, the first slit is aligned with the third slit, and the second slit is aligned with the fourth slit.

[0012] In some embodiments of the present disclosure, the first bezel is located at the top of the first bezel, and the second bezel is located at the top of the second middle frame.

[0013] In some embodiments of the present disclosure, the first antenna radiator is provided with a grounding point, and the grounding point is located at a position of maximum current of the first antenna radiator.

[0014] In some embodiments of the present disclosure, the electronic device includes a first use scenario close to a human body and a second use scenario away from the human body, and the switch assembly is configured to switch the second antenna radiator to a short-circuit state to change the electric field distribution of the first antenna radiator and the second antenna radiator in the first use scenario and when the first folding part and the second folding part are in the folded state, and switch the second antenna radiator to a floating state in the second use scenario and when the first folding part and the second folding part are in the unfolded state.

[0015] In some embodiments of the present disclosure, the electronic device further includes a SAR sensing antenna radiator and a SAR sensor electrically connected to the SAR sensing antenna radiator.

[0016] In some embodiments of the present disclosure, the electronic device further includes a mainboard disposed on the first folding part, and the mainboard is electrically connected to the switch assembly.

[0017] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects.

[0018] The electronic device provided by the present disclosure is provided with a first folding part and a second folding part capable of being folded or unfolded relative to the first folding part, a first antenna radiator is disposed on the first folding part, and a second antenna radiator and a switch assembly are disposed on the second folding part. When the electronic device is in a folded state, the first antenna radiator and the second antenna radiator are oppositely arranged, and the switch assembly can control the current direction of the second antenna radiator. In this way, the current direction of the second antenna radiator can be controlled by the switch assembly according to different use scenarios to reduce the absorption of the antenna radiation by the human body, while the radiation frequency of the first antenna radiator and the second antenna radiator can also be ensured, thereby ensuring the signal quality of the electronic device. In addition, the electronic device provided by the present disclosure does not need to be provided with a SAR sensing antenna radiator, so that the design form and working mode of the first antenna radiator and the second antenna radiator are not limited, and the application flexibility of the first antenna radiator and the second antenna radiator is improved.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0021] Figure 1 is a structural schematic diagram of an electronic device in related technologies;

[0022] Figure 2 is a structural schematic diagram of an electronic device according to an exemplary embodiment;

[0023] Figure 3 is a structural schematic diagram of an electronic device when a second antenna radiator is in a floating state according to an exemplary embodiment;

[0024] Figure 4 is a structural schematic diagram of an electronic device when a second antenna radiator is in a short circuit state according to an exemplary embodiment;

[0025] Figure 5 is a position relationship diagram of an electronic device and a human body according to an exemplary embodiment;

[0026] Figure 6 is an antenna radiation direction schematic diagram of an electronic device when a second antenna radiator is in a short circuit state according to an exemplary embodiment.

[0027] In the drawings:

[0028] 1 - electronic device; 11 - first folding part; 111 - first antenna radiator; 112 - feed point; 113 - return point; 12 - second folding part; 121 - second antenna radiator; 13 - first selection switch; 131 - first inductor; 132 - first resistor; 14 - second selection switch; 141 - second inductor; 142 - second resistor; 15 - radio frequency switch; 16 - mainboard; 17 - SAR induction antenna radiator; 171 - first radio frequency switch; 18 - antenna radiator; 181 - second radio frequency switch; 19 - SAR sensor; 20 - human body. DETAILED DESCRIPTION

[0029] The exemplary embodiments will be described in detail below with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0030] With the development of information technology, electronic devices such as foldable mobile phones are widely used by the public. An antenna module is usually provided on the electronic device to realize the communication function. In the communication process, in order to reduce the influence of electromagnetic radiation of the electronic device on human health, the Specific Absorption Rate (SAR) of the electronic device is usually detected to avoid exceeding the standard.

[0031] However, the method for avoiding SAR exceeding in the related art not only reduces the radiation frequency of the antenna, but also limits the design form and working mode of the antenna. For example, as shown in Figure 1 The electronic device 1 in the related art includes a first folding part 11 and a second folding part 12 capable of relative rotation, a SAR sensing antenna radiator 17 is arranged on the first folding part 11, and an antenna radiator 18 is arranged on the second folding part 12. When the electronic device 1 is in a folded state, the SAR sensing antenna radiator 17 and the antenna radiator 18 are arranged opposite to each other. A feed point 112 and a first radio frequency switch 171 are arranged on the SAR sensing antenna radiator 17, and a second radio frequency switch 181 is arranged on the antenna radiator 18. The SAR sensing antenna radiator 17 is fed through the feed point 112, and at the same time, the antenna radiator 18 is coupled with the SAR sensing antenna radiator 17, so that the SAR sensing antenna radiator 17 and the antenna radiator 18 can realize the function of transmitting and receiving signals. A SAR sensor 19 is further arranged on the electronic device 1, and the distance between the human body and the electronic device 1 is detected through the SAR sensor 19. When the human body is sensed to be close, the radiation frequency of the SAR sensing antenna radiator 17 and the antenna radiator 18 is reduced, so as to achieve the purpose of reducing the radiation to the human body. In this way, the radiation efficiency of the antenna is reduced, and thus the signal quality of the electronic device 1 is reduced.

[0032] At the same time, the SAR sensing antenna radiator in the related art can only be used as a floating antenna, and cannot be connected with the middle frame of the electronic device to realize grounding design, so that the design form and working mode of the antenna radiator in the related art are limited.

[0033] In order to solve the above technical problems, the present disclosure provides an electronic device, which is provided with a first folding part and a second folding part capable of folding or unfolding relative to the first folding part. A first antenna radiator is arranged on the first folding part, and a second antenna radiator and a switch assembly are arranged on the second folding part. When the electronic device is in a folded state, the first antenna radiator and the second antenna radiator are arranged opposite to each other, and the switch assembly can control the current direction of the second antenna radiator. In this way, the current direction of the second antenna radiator can be controlled through the switch assembly according to different use scenarios to reduce the absorption of the human body to the antenna radiation, while the radiation frequency of the first antenna radiator and the second antenna radiator can also be ensured, and thus the signal quality of the electronic device is ensured. In addition, the electronic device provided by the present disclosure does not need to be provided with a SAR sensing antenna radiator, so that the design form and working mode of the first antenna radiator and the second antenna radiator are not limited, and the application flexibility of the first antenna radiator and the second antenna radiator is improved.

[0034] An example embodiment of the present disclosure provides an electronic device, which can be a mobile device such as a mobile phone (e.g., a foldable mobile phone), a tablet computer, a notebook computer, a palm computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), or a non-mobile device such as a personal computer (PC), a television (TV), a kiosk, or a self-service machine.

[0035] As shown in FIG. 1, the electronic device 1 includes a first folding part 11 and a second folding part 12, and the second folding part 12 is foldable or unfoldable relative to the first folding part 11. In this way, a user can adjust the use state of the electronic device 1 according to different needs, thereby improving the user's use experience. For example, when the user is watching a video or playing a game, the first folding part 11 and the second folding part 12 are unfolded to increase the display area of the electronic device 1, thereby improving the user's visual effect. When the user is talking, the first folding part 11 and the second folding part 12 are folded to reduce the volume of the electronic device 1, thereby facilitating the user's holding. Figure 2 The first folding part 11 is provided with a first antenna radiator 111, and the second folding part 12 is provided with a second antenna radiator 121 and a switch assembly. In the folded state, the first antenna radiator 111 and the second antenna radiator 121 are opposite. Exemplarily, the electronic device 1 has opposite top and bottom parts, and in the unfolded state, the first antenna radiator 111 and the second antenna radiator 121 are both located on the top or bottom part of the electronic device 1, so that the first antenna radiator 111 and the second antenna radiator 121 are opposite in the folded state.

[0036]

[0037] ​In the folded state, the switching assembly controls the current direction of the second antenna radiator 121. This design allows the switch assembly to switch the state of the second antenna radiator 121 according to different usage scenarios when the electronic device 1 is in the folded state, thereby controlling the current direction of the second antenna radiator 121. For example, when the electronic device 1 is far from the human body 20, the switching assembly switches the second antenna radiator 121 to a floating state. When the second antenna radiator 121 is in the floating state, the current direction of the second antenna radiator 121 is the same as that of the first antenna radiator 111 in the folded state, and the second antenna radiator 121 can couple with the first antenna radiator 111, improving the radiation efficiency of the first antenna radiator 111 and the second antenna radiator 121, thereby improving the signal quality of the electronic device 1. When the electronic device 1 is close to the human body 20 (e.g., when...), the switching assembly controls the current direction of the second antenna radiator 121. Figure 5 As shown in the diagram, during a call, the electronic device 1 is attached to the human body 20. The switching assembly switches the second antenna radiator 121 from a floating state to a short-circuit state. When the second antenna radiator 121 is in the short-circuit state, it effectively reduces the energy coupling between the first antenna radiator 111 and the second antenna radiator 121. At the same time, it also enables the currents of the first antenna radiator 111 and the second antenna radiator 121 to cancel each other out in opposite directions, thereby changing the distribution of the electric field and ensuring that the electric field near the surface of the human body 20 is perpendicular to the surface of the human body 20 rather than tangential to it (e.g., ...). Figure 6 The diagram shows the antenna radiation direction of electronic device 1 in a short-circuit state, which effectively reduces the absorption of antenna radiation by the human body 20. It should be noted that the floating state refers to the state where the second antenna radiator 121 is not connected to the grounding point under the action of the switching component. The short-circuit state refers to the state where the second antenna radiator 121 is electrically connected to the grounding point under the action of the switching component.

[0038] In this embodiment, while reducing the absorption of antenna radiation by the human body 20, the radiation frequencies of the first antenna radiator 111 and the second antenna radiator 121 are also maintained, thereby ensuring the signal quality of the electronic device 1. Furthermore, in reducing the absorption of antenna radiation by the human body 20, there is no need to install a SAR sensing antenna radiator, thus making the design and operating mode of the first antenna radiator 111 and the second antenna radiator 121 unrestricted. For example, the first antenna radiator 111 and / or the second antenna radiator 121 can be used in a suspended state or grounded, thereby effectively improving the application flexibility of the first antenna radiator 111 and the second antenna radiator 121.

[0039] Combination Figure 2In an embodiment, the first antenna radiator 111 and the second antenna radiator 121 are both in a strip shape, and the extending direction of the first antenna radiator 111 is the same as the extending direction of the second antenna radiator 121. When the electronic device 1 is in the folded state, the first antenna radiator 111 and the second antenna radiator 121 at least partially overlap. Exemplarily, the first antenna radiator 111 and the second antenna radiator 121 can only partially overlap, and the first antenna radiator 111 and the second antenna radiator 121 can also completely overlap. When the first antenna radiator 111 and the second antenna radiator 121 only partially overlap, the length of the first antenna radiator 111 and the length of the second antenna radiator 121 can be equal, and the first antenna radiator 111 and the second antenna radiator 121 are partially overlapped by staggering arrangement. The length of the first antenna radiator 111 can also be different from the length of the second antenna radiator 121, for example, the length of the first antenna radiator 111 is less than the length of the second antenna radiator 121, and when the electronic device is in the folded state, the second antenna radiator 121 completely covers the first antenna radiator 111, so as to realize the partial overlap of the two in area. By adopting such a setting form, the antenna radiation efficiency of the electronic device 1 is ensured, thereby facilitating the improvement of the antenna quality of the electronic device 1.

[0040] The switch assembly is electrically connected with the two end portions of the second antenna radiator 121, so as to control the current flow direction of the second antenna radiator 121. In this way, the control effect of the second antenna radiator 121 can be improved, for example, the second antenna radiator 121 can be ensured to be in a completely short-circuit state, that is, both ends of the second antenna radiator 121 can be grounded, thereby effectively reducing the absorption of the human body 20 to the antenna radiation.

[0041] In combination with Figure 3 and Figure 4 In an embodiment, the switch assembly includes a first switch unit and a second switch unit. The first switch unit is connected between the first end of the second antenna radiator 121 and the ground end, so that the first end of the second antenna radiator 121 can be connected with the ground end, thereby realizing the short circuit of the first end of the second antenna radiator 121.

[0042] The second switch unit is connected between the second end of the second antenna radiator 121 and the ground end, so that the second end of the second antenna radiator 121 can be connected with the ground end, thereby realizing the short circuit of the second end of the second antenna radiator 121.

[0043] With such a setting form, when the two ends of the second antenna radiator 121 are switched to the short circuit state through the first switch unit and the second switch unit, the current maximum of the second antenna radiator 121 is at the two grounding positions, and the current maximum of the first antenna radiator is at the central position range of the first antenna radiator 111, so that the current maximum of the second antenna radiator 121 can be staggered with the current maximum of the first antenna radiator 111, so as to effectively weaken the energy coupling of the first antenna radiator 111 and the second antenna radiator 121. At the same time, the current of the second antenna radiator 121 can also be reversed to reverse the current direction of the first antenna radiator 111 to offset, reduce the electric field distribution, and thus effectively reduce the absorption of the human body 20 to the antenna radiation.

[0044] In combination Figure 3 and Figure 4 In an embodiment, the first switch unit includes a first selection switch 13, which can be a single-pole multi-throw switch, for example. The fixed end of the first selection switch 13 is grounded, the first selection end of the first selection switch 13 is connected to the first end of the second antenna radiator 121 through a first inductor 131, and when the first selection end is connected to the first end of the second antenna radiator 121 through the first inductor 131, the current on the second antenna radiator 121 cannot flow from the first end to the ground end. The second selection end of the first selection switch 13 is connected to the first end of the second antenna radiator 121 through a first resistor 132, and when the second selection end is connected to the first end of the second antenna radiator 121 through the first resistor 132, the current on the second antenna radiator 121 can flow from the first end to the ground end, thereby realizing the short circuit of the first end of the second antenna radiator 121.

[0045] The second switch unit includes a second selection switch 14, which can be a single-pole multi-throw switch, for example. The fixed end of the second selection switch 14 is grounded, the third selection end of the second selection switch 14 is connected to the second end of the second antenna radiator 121 through a second inductor 141, and when the third selection end is connected to the second end of the second antenna radiator 121 through the second inductor 141, the current on the second antenna radiator 121 cannot flow from the second end to the ground end, and when the current on the second antenna radiator 121 cannot flow from the second end to the ground end and the current on the second antenna radiator 121 cannot flow from the first end to the ground end, the second antenna radiator 121 can be in a suspended state. The fourth selection end of the second selection switch 14 is connected to the second end of the second antenna radiator 121 through a second resistor 142, and when the fourth selection end is connected to the second end of the second antenna radiator 121 through the second resistor 142, the current on the second antenna radiator 121 can flow from the second end to the ground end, thereby realizing the short circuit of the second end of the second antenna radiator 121.

[0046] With such a setting form, the first switch unit and the second switch unit can be simply set and assembled.

[0047] In an embodiment, the first resistor 132 and the second resistor 142 are both 0 ohm. In this way, a shorter return path can be provided for the second antenna radiator 121, and interference can be reduced.

[0048] In an embodiment, in the folded state, the overlapping area of the first antenna radiator 111 and the second antenna radiator 121 is greater than or equal to 50%, for example, the overlapping area is 50%, 70%, or 100%, etc. With such a setting form, it is ensured that when the second antenna radiator 121 is in the suspended state, it can be coupled with the first antenna radiator 111, and the radiation efficiency of the first antenna radiator 111 and the second antenna radiator 121 is improved, thereby improving the signal quality of the electronic device 1, and as the overlapping area increases, the radiation efficiency of the first antenna radiator 111 and the second antenna radiator 121 will also increase.

[0049] In combination Figure 2 In an embodiment, the electronic device 1 further includes a first middle frame and a second middle frame capable of relative folding and opening, the first middle frame constitutes the first folding part 11, and the second middle frame constitutes the second folding part 12. The first middle frame includes a first bezel, and the second middle frame includes a second bezel. In the folded state, the first bezel is opposite to the second bezel. At least part of the first bezel constitutes the first antenna radiator 111. For example, part of the first bezel can be used as the first antenna radiator 111, or the entire first bezel can be used as the first antenna radiator 111. At least part of the second bezel constitutes the second antenna radiator 121. For example, part of the second bezel can be used as the second antenna radiator 121, or the entire second bezel can be used as the second antenna radiator 121. In this way, not only the internal space of the electronic device 1 is saved, but also interference of other conductive devices inside the electronic device 1 to the first antenna radiator 111 and the second antenna radiator 121 can be avoided.

[0050] In an embodiment, the first bezel is provided with a first slit and a second slit at positions corresponding to two ends of the first antenna radiator 111, respectively, and the second bezel is provided with a third slit and a fourth slit at positions corresponding to two ends of the second antenna radiator 121, respectively. When the electronic device 1 is in the folded state, the first slit is aligned with the third slit, and the second slit is aligned with the fourth slit. In this way, it is ensured that the first antenna radiator 111 and the second antenna radiator 121 completely overlap in the folded state, thereby further improving the signal quality of the electronic device 1 when the second antenna radiator 121 is in the suspended state.

[0051] In an embodiment, the first frame is located at the top of the first frame, and the second frame is located at the top of the second frame. In this way, the influence on the signal when the user holds the electronic device 1 can be avoided, thereby improving the stability and efficiency of the communication of the electronic device 1.

[0052] In combination Figure 2 and Figure 3 In an embodiment, the first antenna radiator 111 is provided with a feed point 112, and the first antenna radiator 111 is fed through the feed point 112, so that the first antenna radiator 111 can realize the function of transmitting and receiving signals. In the folded state, the second antenna radiator 121 in the suspended state can be coupled with the first antenna radiator 111, so that the antenna radiation efficiency can be effectively improved, thereby improving the signal quality of the electronic device 1.

[0053] The electronic device 1 further comprises a radio frequency switch 15, which is electrically connected with the first antenna radiator 111, and the radio frequency switch 15 is used for adjusting the radiation frequency of the first antenna radiator 111, so that the first antenna radiator 111 can radiate signals of different frequency bands, for example, it can radiate signals of low frequency band, and it can also radiate signals of medium and high frequency band, and the radio frequency switch 15 can also be used for tuning the first antenna radiator 111. In this way, the electronic device 1 can meet the use needs of signals of different frequency bands, thereby further improving the user's use experience.

[0054] In combination Figure 2 In an embodiment, the feed point 112 is arranged at the first end of the first antenna radiator 111, and the radio frequency switch 15 is arranged at the second end of the first antenna radiator 111. In this way, the efficiency of signal radiation can be improved, thereby further improving the communication quality of the electronic device 1.

[0055] In combination Figure 2 In an embodiment, the first antenna radiator 111 is provided with a grounding point 113, and the grounding point 113 is located at the maximum current position of the first antenna radiator 111. In this way, the current distribution on the first antenna radiator 111 can be dispersed, thereby reducing the concentration of electric field energy, which is beneficial to reducing the influence of antenna radiation on the human body 20.

[0056] In combination Figure 3 and Figure 4 In an embodiment, the electronic device 1 includes a first use scenario close to the human body 20 and a second use scenario away from the human body 20. Exemplarily, the first use scenario can be, for example, a use scenario when the user is in an ear-hugging call, and the second use scenario can be, for example, a use scenario of watching a video.

[0057] The switch assembly is configured to switch the second antenna radiator 121 from the floating state to the short-circuit state in the first use scenario and when the first folding part 11 and the second folding part 12 are in the folded state. In this way, the current maximum of the second antenna radiator 121 is staggered with the current maximum of the first antenna radiator 111, and the current of the second antenna radiator 121 is also counteracted in the direction opposite to the current of the first antenna radiator 111, effectively weakening the energy coupling between the first antenna radiator 111 and the second antenna radiator 121, changing the electric field distribution of the first antenna radiator 111 and the second antenna radiator 121, and ensuring that the electric field close to the surface of the human body 20 is perpendicular to the surface of the human body 20 instead of tangent to the surface of the human body 20 (for example Figure 5 The antenna radiation direction of the electronic device 1 in the short-circuit state is shown in the middle of FIG. 1), thereby effectively reducing the absorption of the antenna radiation by the human body 20.

[0058] In the second use scenario and when the first folding part 11 and the second folding part 12 are in the folded state, the second antenna radiator 121 is switched from the short-circuit state to the floating state. When the second antenna radiator 121 is in the floating state, the current direction of the second antenna radiator 121 is the same as that of the first antenna radiator 111, and the second antenna radiator 121 can be coupled with the first antenna radiator 111, improving the radiation efficiency of the first antenna radiator 111 and the second antenna radiator 121, and thereby improving the signal quality of the electronic device 1.

[0059] With such a setting form, the radiation frequency of the first antenna radiator 111 and the second antenna radiator 121 can be ensured while reducing the absorption of the antenna radiation by the human body 20, thereby ensuring the signal quality of the electronic device 1. In addition, when reducing the absorption of the antenna radiation by the human body 20 is achieved, the SAR sensing antenna radiator does not need to be arranged, so that the design form and the working mode of the first antenna radiator 111 and the second antenna radiator 121 are not limited, for example, the first antenna radiator 111 and / or the second antenna radiator 121 can be used in the floating state and can also be grounded, thereby effectively improving the application flexibility of the first antenna radiator 111 and the second antenna radiator 121.

[0060] In an embodiment, the electronic device 1 further comprises a SAR sensing antenna radiator and a SAR sensor electrically connected to the SAR sensing antenna radiator. The distance between the human body 20 and the electronic device 1 is detected by the SAR sensor, and when the human body 20 is sensed to be close, the radiation frequency of the SAR sensing antenna radiator is reduced, thereby further reducing the radiation to the human body 20. In this way, by setting the SAR sensing antenna radiator together with the first antenna radiator 111 and the second antenna radiator 121 to reduce the absorption of the human body 20 to the antenna radiation, the purpose of maximizing the reduction of SAR is achieved, so that the electronic device 1 in this embodiment can meet the higher demand for radiation to the human body 20 to cope with different markets.

[0061] In combination Figure 2 In an embodiment, the electronic device 1 further comprises a mainboard 16, which is arranged in the first folding part 11, and the mainboard 16 is electrically connected to the switch assembly. The switch assembly is controlled by the mainboard 16, so that the switch assembly can switch the state of the second antenna radiator 121 according to different use scenarios, effectively improving the accuracy of the switch assembly when switching, thereby further reducing the absorption of the human body 20 to the antenna radiation while the radiation frequency of the electronic device 1.

[0062] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of the present disclosure following, in general, the principles of the present disclosure and including such departures from the present disclosure that come within known

[0063] It should be understood that the present disclosure is not limited to the precise structures described above and illustrated in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An electronic device, characterized in that, The electronic device includes: A first folding section, on which a first antenna radiator is provided; The second folding section is foldable or unfoldable relative to the first folding section. The second folding section is provided with a second antenna radiator and a switch assembly. In the folded state, the first antenna radiator and the second antenna radiator are opposite to each other. The switch assembly is used to control the current direction of the second antenna radiator.

2. The electronic device according to claim 1, characterized in that, Both the first antenna radiator and the second antenna radiator are elongated, and the extension direction of the first antenna radiator is the same as that of the second antenna radiator. In the folded state, the first antenna radiator and the second antenna radiator at least partially overlap, and the switch assembly is electrically connected to the two ends of the second antenna radiator.

3. The electronic device according to claim 2, characterized in that, The switching assembly includes: A first switching unit is connected between a first end of the second antenna radiator and a ground end; The second switching unit is connected between the second end of the second antenna radiator and the ground end.

4. The electronic device according to claim 3, characterized in that, The first switching unit includes a first selector switch, the fixed terminal of the first selector switch being grounded, the first selector terminal of the first selector switch being connected to the first terminal of the second antenna radiator via a first inductor, and the second selector terminal of the first selector switch being connected to the first terminal of the second antenna radiator via a first resistor; and / or, The second switching unit includes a second selection switch, the fixed terminal of the second selection switch is grounded, the third selection terminal of the second selection switch is connected to the second terminal of the second antenna radiator through a second inductor, and the fourth selection terminal of the second selection switch is connected to the second terminal of the second antenna radiator through a second resistor.

5. The electronic device according to claim 4, characterized in that, Both the first resistor and the second resistor are 0 ohms.

6. The electronic device according to claim 2, characterized in that, In the folded state, the overlapping area of ​​the first antenna radiator and the second antenna radiator is greater than or equal to 50%.

7. The electronic device according to claim 2, characterized in that, The electronic device further includes a first middle frame and a second middle frame that can be folded and opened relative to each other. The first middle frame constitutes the first folding portion, and the second middle frame constitutes the second folding portion. The first middle frame includes a first side frame, and the second middle frame includes a second side frame. In the folded state, the first side frame is opposite to the second side frame, and at least a portion of the first side frame constitutes the first antenna radiator, and at least a portion of the second side frame constitutes the second antenna radiator.

8. The electronic device according to claim 7, characterized in that, The first frame has a first slit and a second slit respectively at the positions corresponding to both ends of the first antenna radiator. The second frame has a third slit and a fourth slit respectively at the positions corresponding to both ends of the second antenna radiator. In the folded state, the first slit and the third slit are aligned, and the second slit and the fourth slit are aligned.

9. The electronic device according to claim 7, characterized in that, The first border is located at the top of the first border, and the second border is located at the top of the second middle frame.

10. The electronic device according to claim 1, characterized in that, The first antenna radiator is provided with a return point, which is located at the point where the current of the first antenna radiator is the maximum.

11. The electronic device according to any one of claims 1 to 10, characterized in that, The electronic device includes a first usage scenario close to the human body and a second usage scenario far from the human body. The switching component is configured to switch the second antenna radiator to a short-circuit state in the first usage scenario when the first fold and the second fold are in a folded state, so as to change the electric field distribution of the first antenna radiator and the second antenna radiator. In the second usage scenario when the first fold and the second fold are in an unfolded state, the second antenna radiator is switched to a floating state.

12. The electronic device according to any one of claims 1 to 10, characterized in that, The electronic device also includes a SAR sensing antenna radiator and a SAR sensor electrically connected to the SAR sensing antenna radiator.

13. The electronic device according to any one of claims 1 to 10, characterized in that, The electronic device also includes: A motherboard is disposed in the first folded portion and is electrically connected to the switch assembly.

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