Foldable electronic device

Abstract

The embodiment of the invention provides foldable electronic equipment, which comprises a first main body part and a second main body part, and is characterized in that the first main body part comprises a first radiator and a second radiator, and the first radiator supports resonance in a first frequency range; the second main body part comprises a first metal branch knot, and the first metal branch knot comprises a first grounding point and a first sub branch knot and a second sub branch knot which are located on the two sides of the first grounding point; when the electronic equipment is in an unfolded state, the first side edge and the second side edge are positioned on the same side of the electronic equipment; when the electronic equipment is in a folded state, the second side edge is opposite to the first side edge, the first sub-branch knot is electromagnetically coupled with the first radiator to form a first parasitic radiator, the second sub-branch knot is electromagnetically coupled with the second radiator to form a second parasitic radiator, and the second parasitic radiator supports resonance in a second frequency range; the second frequency range at least partially overlaps the first frequency range. According to the foldable electronic equipment provided by the embodiment of the invention, the communication performance of the electronic equipment can be improved.

Description

Technical Field

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

[0002] With the development of communication technology, foldable electronic devices such as foldable mobile phones are gradually appearing on the market. Foldable electronic devices can switch between a folded state and an unfolded state. In the folded state, the area of ​​the electronic device is reduced, which is convenient for users to carry and can also ensure normal use by users; in the unfolded state, the electronic device can provide a larger display screen, providing users with a better user experience.

[0003] When a foldable electronic device is in a folded state, the communication performance of the electronic device is often reduced due to its shape, thereby affecting the user's communication experience. Summary of the invention

[0004] An embodiment of the present application provides a foldable electronic device, which can improve the communication performance of the electronic device.

[0005] An embodiment of the present application provides a foldable electronic device, including:

[0006] A first main body, the first main body comprising a first side, the first side comprising a first radiator and a second radiator arranged at intervals, the first radiator supporting resonance within a first frequency range;

[0007] a second main body, wherein the second main body and the first main body can rotate relative to each other to a folded state or an unfolded state, the second main body comprises a second side edge, the second side edge comprises a first metal branch, the first metal branch comprises a first grounding point and a first sub-branch and a second sub-branch located on both sides of the first grounding point, and the first grounding point is grounded;

[0008] When the electronic device is in an unfolded state, the first side and the second side are located on the same side of the electronic device; when the electronic device is in a folded state, the second side is opposite to the first side, the first sub-branch is electromagnetically coupled with the first radiator to form a first parasitic radiator, and the second sub-branch is electromagnetically coupled with the second radiator to form a second parasitic radiator, and the second parasitic radiator supports resonance in a second frequency range, and the second frequency range at least partially overlaps with the first frequency range.

[0009] In the foldable electronic device provided in the embodiment of the present application, the first sub-branch of the first metal branch is electromagnetically coupled with the first radiator to form a first parasitic radiator. Therefore, the first radiator can generate a coupling current in the first sub-branch through electromagnetic coupling. The coupling current can suppress the reverse coupling current of the second sub-branch of the first metal branch, reduce or even eliminate the influence of the reverse coupling current on the radiation efficiency of the first radiator, and make the radiation efficiency groove of the first radiator disappear. Therefore, the antenna performance of the first radiator can be improved, thereby improving the overall communication performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0011] Figure 1 This is a schematic diagram of a first unfolded state of a foldable electronic device according to an embodiment of the present application.

[0012] Figure 2 for Figure 1 A side view of the foldable electronic device is shown.

[0013] Figure 3 This is a schematic diagram of a first folding state of a foldable electronic device according to an embodiment of the present application.

[0014] Figure 4 This is a schematic diagram of a second unfolded state of the foldable electronic device according to an embodiment of the present application.

[0015] Figure 5 This is a schematic diagram of a second folding state of the foldable electronic device according to an embodiment of the present application.

[0016] Figure 6 This is a schematic diagram of a third folding state of the foldable electronic device according to an embodiment of the present application.

[0017] Figure 7 This is a schematic diagram of a fourth folding state of the foldable electronic device according to an embodiment of the present application.

[0018] Figure 8 This is a schematic diagram of a fifth folding state of the foldable electronic device according to an embodiment of the present application.

[0019] Fig. 9 This is a schematic diagram of a sixth folding state of the foldable electronic device according to an embodiment of the present application.

[0020] Fig.10This is a schematic diagram of the seventh folding state of the foldable electronic device according to an embodiment of the present application.

[0021] Fig.11 This is an example diagram of vector current distribution of a foldable electronic device according to an embodiment of the present application.

[0022] Fig.12 This is an example diagram of scalar current distribution of a foldable electronic device according to an embodiment of the present application.

[0023] Fig.13 This is a schematic diagram of the first radiation efficiency of the foldable electronic device according to an embodiment of the present application.

[0024] Fig.14 This is a schematic diagram of the second radiation efficiency of the foldable electronic device according to an embodiment of the present application.

[0025] Fig.15 This is a third radiation efficiency schematic diagram of the foldable electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0027] The embodiment of the present application provides a foldable electronic device. The electronic device may be, for example, a smart phone, a tablet computer, a gaming device, an AR (Augmented Reality) device, a laptop computer, a desktop computing device, or other foldable device with a wireless communication function.

[0028] refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of a first unfolded state of the foldable electronic device 100 according to an embodiment of the present application. Figure 2 for Figure 1 A side view of the foldable electronic device 100 is shown. Figure 3 This is a schematic diagram of a first folding state of the foldable electronic device 100 according to an embodiment of the present application.

[0029] The electronic device 100 includes a first main body 10 , a second main body 20 , a hinge 30 , a main display screen 40 and a sub-display screen 50 .

[0030] Among them, the first main body part 10 and the second main body part 20 form the main structure of the electronic device 100. The first main body part 10 may include, for example, a shell and components such as a mainboard disposed in the shell. The second main body part 20 may include, for example, a shell and components such as a battery disposed in the shell. The first main body part 10 and the second main body part 20 are both hinged to the rotating shaft 30. The first main body part 10 and the second main body part 20 can rotate around the rotating shaft 30, so that the second main body part 20 and the first main body part 10 can rotate relative to each other to a folded state or an unfolded state, so that the electronic device 100 is in a folded state or an unfolded state. When the electronic device 100 is in a folded state, such as Figure 3 As shown in FIG. 1 , in this case, the area of ​​the electronic device is reduced, making it easier for users to carry. When the electronic device 100 is in the unfolded state, as shown in FIG. Figure 1 and Figure 2 As shown, in this case the electronic device can provide a larger display screen, giving users a better user experience.

[0031] In practical applications, the folded state of the electronic device 100 may include a state in which the first main body 10 and the second main body 20 are rotated to be parallel to each other, or a state in which the angle between the first main body 10 and the second main body 20 is less than or equal to a preset angle. That is, when the first main body 10 and the second main body 20 are parallel to each other, or when the angle between the first main body 10 and the second main body 20 is less than or equal to a preset angle, it can be understood that the electronic device 100 is in the folded state.

[0032] The electronic device 100 being in the unfolded state may include the first main body 10 and the second main body 20 rotating to be in the same plane, and may also include the state where the angle between the first main body 10 and the second main body 20 is greater than a preset angle. That is, when the first main body 10 and the second main body 20 are in the same plane, or when the angle between the first main body 10 and the second main body 20 is greater than a preset angle, it can be understood that the electronic device 100 is in the unfolded state.

[0033] For example, taking the preset angle of 30 degrees as an example, when the first main body 10 and the second main body 20 are parallel to each other, or when the angle between the first main body 10 and the second main body 20 is less than or equal to 30 degrees, it can be understood that the electronic device 100 is in a folded state; when the first main body 10 and the second main body 20 are in the same plane, or when the angle between the first main body 10 and the second main body 20 is greater than 30 degrees, it can be understood that the electronic device 100 is in an unfolded state. It can be understood that the preset angle of 30 degrees is only an exemplary description, and the present application is not limited thereto.

[0034] The main display screen 40 includes a first display portion 41 and a second display portion 42 connected to each other. The first display portion 41 is provided on the first main body portion 10, and the second display portion 42 is provided on the second main body portion 20. Both the first display portion 41 and the second display portion 42 can be used to display content such as images, videos, texts, etc. Moreover, the electronic device 100 can control the first display portion 41 and the second display portion 42 to display content at the same time, or can control the first display portion 41 or the second display portion 42 to display content separately.

[0035] In some embodiments, the main display screen 40 is a flexible display screen, so that the main display screen 40 can be bent or stretched as the electronic device 100 is folded or unfolded. In this way, the structure of the main display screen 40 is easy to implement and has good structural stability.

[0036] The secondary display screen 50 is disposed on the second main body 20. The secondary display screen 50 and the second display portion 42 of the main display screen 40 are respectively disposed on two opposite surfaces of the second main body 20. The secondary display screen 50 can also be used to display contents such as images, videos, texts, and the like.

[0037] When the electronic device 100 is in the unfolded state, the main display screen 40 is in the unfolded state. In this case, the electronic device 100 can display content through the main display screen 40, and the auxiliary display screen 50 does not work.

[0038] When the electronic device 100 is in the folded state, the main display screen 40 is in the folded state, and the first display portion 41 is opposite to the second display portion 42. Figure 3 In this case, the electronic device 100 can display content through the secondary display screen 50, and the main display screen 40 is not working.

[0039] In some embodiments, reference Figure 4 and Figure 5 , Figure 4 Schematic diagram of a second unfolded state of the foldable electronic device 100 according to an embodiment of the present application. Figure 5 This is a schematic diagram of a second folding state of the foldable electronic device 100 according to an embodiment of the present application.

[0040] The first main body 10 includes a first side 11, which may be a side of the housing of the first main body 10. The second main body 20 includes a second side 21, which may be a side of the housing of the second main body 20. When the electronic device 100 is in the unfolded state, the first side 11 and the second side 21 are located on the same side of the electronic device 100. Figure 4 When the electronic device 100 is in the folded state, the second side edge 21 is opposite to the first side edge 11, as shown in FIG. Figure 5 shown.

[0041] The first side 11 includes a first radiator 111 and a second radiator 112 that are spaced apart. Both the first radiator 111 and the second radiator 112 can radiate wireless signals to the outside. In some embodiments, the first radiator 111 and the second radiator 112 can be grounded, but it should be noted that it is not necessary for the first radiator 111 and the second radiator 112 to be grounded. For example, when a monopole antenna is formed, there is no need to ground them. Both the first radiator 111 and the second radiator 112 can be radiators formed by metal structures such as metal frames of electronic devices, or can be radiators formed by MDA (in-mold injection). In some embodiments, the distance between the second radiator 112 and the rotating shaft 30 is less than the distance between the first radiator 111 and the rotating shaft 30, that is, the second radiator 112 is closer to the rotating shaft 30.

[0042] The first radiator 111 supports resonance in a first frequency range. In some embodiments, the first frequency range is a middle high band (MHB), and the frequency range of the middle high band includes 1710 MHz to 2690 MHz. In some embodiments, the second radiator 112 supports GPS (Global Positioning System) resonance or resonance in a middle high band. In practical applications, GPS resonance may include L1 (frequency 1575.42 MHz) band and L5 (frequency 1176.45 MHz) band.

[0043] The second side 21 includes a first metal branch 211. The first metal branch 211 may be a metal branch formed by a metal structure such as a metal frame of an electronic device. The first metal branch 211 includes a first grounding point 211a and a first sub-branch 211b and a second sub-branch 211c located on both sides of the first grounding point 211a. Among them, the first grounding point 211a is grounded. Therefore, the first grounding point 211a can form a zero potential point, and the first metal branch 211 is divided into a first sub-branch 211b and a second sub-branch 211c by the zero potential point. In some embodiments, the distance between the second sub-branch 211c and the rotating shaft 30 is less than the distance between the first sub-branch 211b and the rotating shaft 30, that is, the second sub-branch 211c is closer to the rotating shaft 30.

[0044] When the electronic device 100 is in the folded state, the first sub-branch 211b is electromagnetically coupled with the first radiator 111 to form a first parasitic radiator, so as to improve the efficiency of the first radiator 111 in radiating wireless signals; the second sub-branch 211c is electromagnetically coupled with the second radiator 112 to form a second parasitic radiator, so as to improve the efficiency of the second radiator 112 in radiating wireless signals. The second parasitic radiator supports resonance in a second frequency range, and the second frequency range at least partially overlaps with the first frequency range.

[0045] For example, in some embodiments, the first frequency range includes the B3 frequency band (uplink frequency 1710MHz to 1785MHz, downlink frequency 1805MHz to 1880MHz), and the resonant center frequency of the first parasitic radiator can be within the frequency range of the B3 frequency band or greater than the maximum frequency of the B3 frequency band, for example, the resonant center frequency of the first parasitic radiator can be 1.95GHz. The second radiator 112 supports the resonance of the GPS L1 frequency band, and the resonant center frequency of the second parasitic radiator is greater than the resonant frequency of the GPS L1 frequency band, for example, the resonant center frequency of the second parasitic radiator can be 1.8GHz. In this case, the resonant frequency of the second parasitic radiator partially overlaps with the resonant frequency of the first radiator 111.

[0046] It can be understood that, since the second frequency range supported by the second parasitic radiator at least partially overlaps with the first frequency range supported by the first radiator 111, in practical applications, the first radiator 111 will generate a reverse coupling current I in the second sub-branch 211c through electromagnetic coupling. 1 . Reverse coupling current I 1 The resonant current I 2 , which will cause the radiation efficiency of the first radiator 111 to have an efficiency pit, affecting the antenna performance of the first radiator 111. In the embodiment of the present application, the first sub-branch 211b is electromagnetically coupled with the first radiator 111 to form a first parasitic radiator, so the first radiator 111 can generate a coupling current I in the first sub-branch 211b through electromagnetic coupling. 3 . Coupling current I 3 The reverse coupling current I 1 The reverse coupling current I 1 , thereby reducing or even eliminating the reverse coupling current I 1 The radiation efficiency of the first radiator 111 is affected so that the radiation efficiency depression of the first radiator 111 disappears, thereby improving the antenna performance of the first radiator 111 and further improving the overall communication performance of the electronic device 100 .

[0047] In some embodiments, reference Figure 6 , Figure 6 This is a schematic diagram of a third folding state of the foldable electronic device 100 according to an embodiment of the present application.

[0048] The second side edge 21 of the second main body 20 further includes a second metal branch 212. The second metal branch 212 may also be a metal branch formed by a metal structure such as a metal frame of an electronic device. The second metal branch 212 is grounded. In some embodiments, the distance between the second metal branch 212 and the shaft 30 is greater than the distance between the first metal branch 211 and the shaft 30, that is, the second metal branch 212 is farther away from the shaft 30.

[0049] When the electronic device 100 is in the folded state, the first sub-branch 211 b and the second metal branch 212 of the first metal branch 211 are electromagnetically coupled with the first radiator 111 to form the first parasitic radiator.

[0050] In some embodiments, the first radiator 111 is spaced from the second radiator 112. A first gap 113 is provided between the first radiator 111 and the second radiator 112. A second gap 213 is provided between the first metal branch 211 and the second metal branch 212. When the electronic device 100 is in a folded state, the second gap 213 is opposite to the first gap 113.

[0051] It is understandable that in actual applications, the first gap 113 and the second gap 213 may be filled with insulating materials such as plastic to ensure the overall structural strength and aesthetic appearance of the electronic device 100 .

[0052] In some embodiments, reference Figure 7 and Figure 8 , Figure 7 Schematic diagram of a fourth folding state of the foldable electronic device 100 according to an embodiment of the present application. Figure 8 This is a schematic diagram of a fifth folding state of the foldable electronic device 100 according to an embodiment of the present application.

[0053] The first side 11 of the first main body 10 also includes a third radiator 114. The third radiator 114 can radiate wireless signals to the outside. For example, the third radiator 114 can support resonance of low band (LB), MHB, GPS and other types, and radiate corresponding types of wireless signals to the outside. In some embodiments, the third radiator 114 can be grounded, but similarly, it is not necessary for the third radiator 114 to be grounded. The third radiator 114 can be a radiator formed by a metal structure such as a metal frame of an electronic device, or a radiator formed by MDA (in-mold injection).

[0054] The second side 21 of the second main body 20 further includes a third metal branch 214. The third metal branch 214 may also be a metal branch formed by a metal structure such as a metal frame of an electronic device. The third metal branch 214 is spaced apart from the first metal branch 211. The third metal branch 214 is grounded.

[0055] When the electronic device 100 is in the folded state, the third metal branch 214 is electromagnetically coupled with the third radiator 114 to form a third parasitic radiator, so as to improve the efficiency of the third radiator 114 in radiating wireless signals.

[0056] In some embodiments, the first radiator 111, the second radiator 112, and the third radiator 114 may be arranged in sequence. Figure 7 As shown. A third gap 115 is provided between the second radiator 112 and the third radiator 114. A fourth gap 215 is provided between the first metal branch 211 and the third metal branch 214. When the electronic device 100 is in a folded state, the fourth gap 215 is opposite to the third gap 115. In practical applications, the third gap 115 and the fourth gap 215 can be filled with insulating materials such as plastic to ensure the overall structural strength and aesthetic appearance of the electronic device 100.

[0057] In some embodiments, the first radiator 111, the third radiator 114, and the second radiator 112 may be arranged in sequence. Figure 8 In this case, the first gap 113 is located between the first radiator 111 and the third radiator 114 .

[0058] In some embodiments, reference Fig. 9 , Fig. 9 This is a schematic diagram of a sixth folding state of the foldable electronic device 100 according to an embodiment of the present application.

[0059] The first side 11 of the first main body 10 includes a fourth metal branch 116. The fourth metal branch 116 may be a metal branch formed by a metal structure such as a metal frame of an electronic device. The fourth metal branch 116 includes a second grounding point 116a and a third sub-branch 116b and a fourth sub-branch 116c located on both sides of the second grounding point 116a. The second grounding point 116a is grounded. Therefore, the second grounding point 116a can form a zero potential point, and the fourth metal branch 116 is divided into a third sub-branch 116b and a fourth sub-branch 116c by the zero potential point. The third sub-branch 116b forms the above-mentioned second radiator 112, and the fourth sub-branch 116c forms the above-mentioned third radiator 114. Therefore, the fourth metal branch 116 of the first side 11 can be reused to form the second radiator 112 and the third radiator 114, without the need to separately set the second radiator 112 and the third radiator 114, which can simplify the design of the antenna.

[0060] In some embodiments, reference Fig.10 , Fig.10 This is a schematic diagram of a seventh folding state of the foldable electronic device 100 according to an embodiment of the present application. Fig.10 The electronic device 100 is shown with Fig. 9 The same parts of the electronic device 100 can refer to the description in the above embodiment, and the difference is that the first radiator 111 can be formed by the third sub-branch 116b, and the second radiator 112 can be formed by the fourth sub-branch 116c. Therefore, the fourth metal branch 116 of the first side 11 can be reused to form the first radiator 111 and the second radiator 112, which can also simplify the design of the antenna.

[0061] The foldable electronic device 100 of the embodiment of the present application is further described below in conjunction with a simulation schematic diagram.

[0062] refer to Fig.11 and Fig.12 , Fig.11 is an example diagram of vector current distribution of the foldable electronic device 100 according to an embodiment of the present application, Fig.12 This is an example diagram of scalar current distribution of the foldable electronic device 100 according to an embodiment of the present application.

[0063] refer to Fig.13 , Fig.13 This is a schematic diagram of a first radiation efficiency of the foldable electronic device 100 according to an embodiment of the present application. Fig.13FIG. 1 is a schematic diagram showing the radiation efficiency of the first radiator 111 when the first sub-branch 211b of the first metal branch 211 is not electromagnetically coupled to the first radiator 111. The first radiator 111 operates in the B3 frequency band, and the resonant center frequency of the second parasitic radiator is 1.8 GHz. S1 represents the theoretical radiation efficiency curve of the first radiator 111, and S2 represents the total radiation efficiency curve of the first radiator 111. Fig.13 It can be seen that the radiation efficiency of the first radiator 111 has an efficiency concave point at a frequency of 1.8 GHz, such as Fig.13 The efficiency pit P shown indicates that the radiation efficiency of the first radiator 111 is affected by the second parasitic radiator.

[0064] refer to Fig.14 , Fig.14 This is a schematic diagram of a second radiation efficiency of the foldable electronic device 100 according to an embodiment of the present application. Fig.14 The figure shows a schematic diagram comparing the radiation efficiency of the first radiator 111 when the first sub-branch 211b of the first metal branch 211 is electromagnetically coupled with the first radiator 111 and when it is not electromagnetically coupled. S3 represents the theoretical radiation efficiency curve of the first radiator 111 when the first sub-branch 211b is electromagnetically coupled with the first radiator 111; S4 represents the total radiation efficiency curve of the first radiator 111 when the first sub-branch 211b is electromagnetically coupled with the first radiator 111. The frequency corresponding to the marked point 1 is approximately 1.7733 GHz, and the frequency corresponding to the marked point 2 is approximately 1.8113 GHz. Fig.14 By comparing the curves S3 and S4 with the curves S1 and S2, it can be seen that when the first sub-branch 211b is electromagnetically coupled with the first radiator 111, the radiation efficiency groove P of the first radiator 111 disappears, indicating that the coupling current generated by the first sub-branch 211b suppresses the reverse coupling current generated by the second sub-branch 211c, thereby improving the radiation efficiency of the first radiator 111 and the radiation performance of the electronic device.

[0065] refer to Fig.15 , Fig.15 This is a third radiation efficiency schematic diagram of the foldable electronic device 100 according to an embodiment of the present application. Fig.15The figure shows a schematic diagram comparing the radiation efficiency of the second radiator 112 when the second sub-branch 211c of the first metal branch 211 is electromagnetically coupled to the second radiator 112 and when it is not electromagnetically coupled. S5 represents the theoretical radiation efficiency curve of the second radiator 112 when the second sub-branch 211c is not electromagnetically coupled to the second radiator 112; S6 represents the total radiation efficiency curve of the second radiator 112 when the second sub-branch 211c is not electromagnetically coupled to the second radiator 112; S7 represents the theoretical radiation efficiency curve of the second radiator 112 when the second sub-branch 211c is electromagnetically coupled to the second radiator 112; S8 ​​represents the total radiation efficiency curve of the second radiator 112 when the second sub-branch 211c is electromagnetically coupled to the second radiator 112. Among them, the frequencies corresponding to the marking points 1 and 2 are both 1.58 GHz. Fig.15 By comparing the curves S7 and S8 with the curves S5 and S6, it can be seen that when the second sub-branch 211c is electromagnetically coupled with the second radiator 112, the radiation efficiency of the second radiator 112 is improved, thereby also being able to improve the radiation performance of the electronic device.

[0066] Above Fig.13 , Fig.14 In the figure, “System Rad.Efficiency WO-para” represents the theoretical radiation efficiency of the first radiator 111 when the first sub-branch 211b is not electromagnetically coupled with the first radiator 111; “SystemTot.Efficiency WO-para” represents the total radiation efficiency of the first radiator 111 when the first sub-branch 211b is not electromagnetically coupled with the first radiator 111; “System Rad.Efficiency GH-para” represents the theoretical radiation efficiency of the first radiator 111 when the first sub-branch 211b is electromagnetically coupled with the first radiator 111; “System Tot.EfficiencyGH-para” represents the total radiation efficiency of the first radiator 111 when the first sub-branch 211b is electromagnetically coupled with the first radiator 111.

[0067] Above Fig.15In the figure, “System Rad.Efficiency WO-para” represents the theoretical radiation efficiency of the second radiator 112 when the second sub-branch 211c is not electromagnetically coupled with the second radiator 112; “System Tot.EfficiencyWO-para” represents the total radiation efficiency of the second radiator 112 when the second sub-branch 211c is not electromagnetically coupled with the second radiator 112; “System Rad.Efficiency AB-para” represents the theoretical radiation efficiency of the second radiator 112 when the second sub-branch 211c is electromagnetically coupled with the second radiator 112; “System Tot.Efficiency AB-para” represents the total radiation efficiency of the second radiator 112 when the second sub-branch 211c is electromagnetically coupled with the second radiator 112.

[0068] In the description of this application, it should be understood that terms such as "first" and "second" are only used to distinguish similar objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0069] The foldable electronic device provided by the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A foldable electronic device, characterized in that: include: A first main body, the first main body comprising a first side, the first side comprising a first radiator and a second radiator arranged at intervals, the first radiator supporting resonance within a first frequency range; a second main body, wherein the second main body and the first main body can rotate relative to each other to a folded state or an unfolded state, the second main body comprises a second side edge, the second side edge comprises a first metal branch, the first metal branch comprises a first grounding point and a first sub-branch and a second sub-branch located on both sides of the first grounding point, and the first grounding point is grounded; When the electronic device is in an unfolded state, the first side and the second side are located on the same side of the electronic device; when the electronic device is in a folded state, the second side is opposite to the first side, the first sub-branch is electromagnetically coupled with the first radiator to form a first parasitic radiator, and the second sub-branch is electromagnetically coupled with the second radiator to form a second parasitic radiator, the second parasitic radiator supports resonance in a second frequency range, and the second frequency range at least partially overlaps with the first frequency range.

2. The foldable electronic device according to claim 1, characterized in that: The second side further includes a second metal branch node, the second metal branch node is spaced apart from the first metal branch node, and the second metal branch node is grounded; When the electronic device is in a folded state, the first sub-branch and the second metal branch are electromagnetically coupled with the first radiator to form a first parasitic radiator.

3. The foldable electronic device according to claim 2, characterized in that: There is a first gap between the first radiator and the second radiator; There is a second gap between the first metal branch node and the second metal branch node; When the electronic device is in a folded state, the second gap is opposite to the first gap.

4. The foldable electronic device according to claim 1, characterized in that: The first side also includes a third radiator; The second side further includes a third metal branch node, the third metal branch node is spaced apart from the first metal branch node, and the third metal branch node is grounded; When the electronic device is in a folded state, the third metal branch is electromagnetically coupled with the third radiator to form a third parasitic radiator.

5. The foldable electronic device according to claim 4, characterized in that: The first radiator, the second radiator, and the third radiator are arranged in sequence and at intervals; or The first radiator, the third radiator, and the second radiator are arranged in sequence and at intervals.

6. The foldable electronic device according to claim 5, characterized in that: There is a third gap between the second radiator and the third radiator; There is a fourth gap between the first metal branch node and the third metal branch node; When the electronic device is in a folded state, the fourth gap is opposite to the third gap.

7. The foldable electronic device according to claim 5, characterized in that: The first side includes a fourth metal branch, the fourth metal branch includes a second grounding point and a third sub-branch and a fourth sub-branch located on both sides of the second grounding point, the second grounding point is grounded, the third sub-branch forms the second radiator, and the fourth sub-branch forms the third radiator.

8. The foldable electronic device according to claim 5, characterized in that: The first side includes a fourth metal branch, the fourth metal branch includes a second grounding point and a third sub-branch and a fourth sub-branch located on both sides of the second grounding point, the second grounding point is grounded, the third sub-branch forms the first radiator, and the fourth sub-branch forms the second radiator.

9. The foldable electronic device according to any one of claims 1 to 8, characterized in that: The first frequency range is a medium-high frequency band, and the frequency range of the medium-high frequency band includes 1710 MHz to 2690 MHz; The second radiator supports GPS resonance or resonance in medium and high frequency bands.

10. The foldable electronic device according to claim 9, characterized in that: The first frequency range includes a B3 frequency band, and the resonant center frequency of the first parasitic radiator is within the frequency range of the B3 frequency band or is greater than the maximum frequency of the B3 frequency band; The second radiator supports the resonance of the GPS L1 frequency band, and the resonance center frequency of the second parasitic radiator is greater than the resonance frequency of the GPS L1 frequency band.

11. The foldable electronic device according to any one of claims 1 to 8, characterized in that: Also includes: A main display screen, the main display screen comprising a first display portion and a second display portion connected to each other, the first display portion being arranged on the first main body portion, and the second display portion being arranged on the second main body portion; A secondary display screen, the secondary display screen is arranged on the second main body, and the secondary display screen and the second display part are respectively arranged on two opposite surfaces of the second main body; When the electronic device is in a folded state, the first display portion is opposite to the second display portion.

12. The foldable electronic device according to any one of claims 1 to 8, characterized in that: Also includes: Rotating shaft; The first main body portion and the second main body portion are both hinged to the rotating shaft, so that the second main body portion and the first main body portion can rotate relative to each other to a folded state or an unfolded state.

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