Folding screen electronic equipment

Abstract

The invention discloses folding screen electronic equipment, and relates to the technical field of electronic products. The folding screen electronic equipment comprises a first frame and a second frame, the first frame comprises a first antenna assembly, the first antenna assembly comprises a first radiator and a second radiator, a first fracture is formed between the first radiator and the second radiator, the first radiator comprises a first electric connection position, and the second radiator comprises a second electric connection position; the second frame comprises a second antenna assembly, the second antenna assembly comprises a third radiator, the third radiator comprises a third electric connection position and a fourth electric connection position, the third electric connection position is grounded through a first impedance tuning circuit, and the fourth electric connection position is grounded through a second impedance tuning circuit; when the folding screen electronic equipment is in a folding state, the first electric connection position is electrically connected with the third electric connection position, the second electric connection position is electrically connected with the fourth electric connection position, and the first antenna assembly, the first impedance tuning circuit and the second impedance tuning circuit are reconstructed into a third antenna assembly.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a folding screen electronic device. Background Art

[0002] As an innovative form of smart terminal, foldable screen electronic devices have made significant progress in technology and design in recent years. Foldable phones have a multi-purpose form and are close to the size of a tablet when unfolded, which improves the experience of multi-tasking and video watching. They are especially suitable for business office scenarios. When folded, the volume can be reduced to half of that of ordinary electronic devices, making them easy to carry. Foldable screen electronic devices correspond to different usage scenarios due to their different forms, which also means different signal experiences. When the foldable screen electronic device is in a folded state, the borders of the two bodies tend to fit together, and accordingly, the distance between different antennas located in the relative borders will be shortened. Due to the mutual influence between the antennas, the antenna performance of different antennas located in the relative borders in this state will decrease. It can be seen that in the related art, when the foldable screen electronic device is in a folded state, there is a problem of relatively poor isolation between different antennas located in the relative borders. Summary of the invention

[0003] The present application provides a folding screen electronic device, which is conducive to improving the isolation between different antennas located in relative frames.

[0004] In a first aspect, the present application provides a folding screen electronic device, including a first frame and a second frame, the first frame including a first antenna assembly, the first antenna assembly including a first radiator and a second radiator, a first break between the first radiator and the second radiator, the first radiator including a first electrical connection position, and the second radiator including a second electrical connection position;

[0005] The second frame includes a second antenna assembly, the second antenna assembly includes a third radiator, the third radiator includes a third electrical connection position and a fourth electrical connection position, there is no break between the third electrical connection position and the fourth electrical connection position, the third electrical connection position is grounded through a first impedance tuning circuit, and the fourth electrical connection position is grounded through a second impedance tuning circuit;

[0006] When the folding screen electronic device is in a folded state, the first frame is opposite to the second frame, the first electrical connection position is electrically connected to the third electrical connection position, the second electrical connection position is electrically connected to the fourth electrical connection position, and the first antenna assembly, the first impedance tuning circuit and the second impedance tuning circuit are reconstructed into a third antenna assembly.

[0007] In the embodiments of the present application, by providing a first electrical connection position in the first radiator, a second electrical connection position in the second radiator, and a third electrical connection position and a fourth electrical connection position in the third radiator, thus, when the folding screen electronic device is in the folded state, the first electrical connection position is electrically connected to the third electrical connection position, and the second electrical connection position is electrically connected to the fourth electrical connection position, so that the first antenna assembly, the first impedance tuning circuit, and the second impedance tuning circuit can be reconstructed into a third antenna assembly. Since when the folding screen is in the folded state, the first antenna assembly can be reconstructed into a new third antenna assembly by electrically connecting with the antenna structure in the second antenna assembly, in this way, the influence of the second antenna assembly on the first antenna assembly can be reduced, thereby improving the isolation degree between different antennas located in opposite side frames. Description of the Drawings

[0008] Figure 1 is a schematic structural diagram of the folding screen electronic device in the unfolded state in the embodiments of the present application;

[0009] Figure 2 is a schematic structural diagram of the folding screen electronic device in the folded state in the embodiments of the present application;

[0010] Figure 3 is a schematic structural diagram of the first side frame in the embodiments of the present application;

[0011] Figure 4 is one of the schematic structural diagrams of the antenna circuit corresponding to the first side frame in the embodiments of the present application;

[0012] Figure 5 is a schematic structural diagram of the second side frame in the embodiments of the present application;

[0013] Figure 6 is a schematic structural diagram of the antenna circuit corresponding to the second side frame in the embodiments of the present application;

[0014] Figure 7 is a schematic structural diagram of the connection between the first side frame and the second side frame when the folding screen electronic device is in the folded state in the embodiments of the present application;

[0015] Figure 8 is Figure 7 a partial schematic diagram of the connection between the first electrical connection position and the third electrical connection position in

[0016] Figure 9 is a schematic structural diagram of the third antenna assembly;

[0017] Figure 10 is a schematic structural diagram of the fourth antenna assembly;

[0018] Figure 11(a) is a schematic diagram of the current flow of the common mode in the second antenna component during the operation of the first antenna and the second antenna;

[0019] Figure 11 (b) is a schematic diagram of the current flow of the differential mode in the second antenna component during the operation of the first antenna and the second antenna;

[0020] Figure 12 is the second schematic diagram of the structure of the antenna circuit corresponding to the first frame in the embodiment of the present application. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0022] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects before and after are in an "or" relationship.

[0023] Next, a foldable screen electronic device provided in the embodiments of the present application will be described in detail with reference to the accompanying drawings and through specific embodiments and their application scenarios.

[0024] Please refer to Figures 1 to 10 , the embodiment of the present application provides a foldable screen electronic device, including a first frame 110 and a second frame 120. The first frame 110 includes a first antenna component 130. The first antenna component 130 includes a first radiator 111 and a second radiator 112. There is a first break 113 between the first radiator 111 and the second radiator 112. The first radiator 111 includes a first electrical connection position 114, and the second radiator 112 includes a second electrical connection position 115;

[0025] The second frame 120 includes a second antenna assembly 140. The second antenna assembly 140 includes a third radiator 121. The third radiator 121 includes a third electrical connection position 124 and a fourth electrical connection position 125. There is no break gap between the third electrical connection position 124 and the fourth electrical connection position 125. The third electrical connection position 124 is grounded through a first impedance tuning circuit 141, and the fourth electrical connection position 125 is grounded through a second impedance tuning circuit 142.

[0026] When the folding screen electronic device is in the folded state, the first frame 110 and the second frame 120 face each other. The first electrical connection position 114 is electrically connected to the third electrical connection position 124, and the second electrical connection position 115 is electrically connected to the fourth electrical connection position 125. The first antenna assembly 130, the first impedance tuning circuit 141, and the second impedance tuning circuit 142 are reconfigured into a third antenna assembly 150.

[0027] The above-mentioned first frame 110 and second frame 120 can be two opposite frames of the folding screen electronic device in the unfolded state. For example, the first frame 110 and the second frame 120 are two opposite side frames of the folding screen electronic device in the unfolded state. Or, the first frame 110 and the second frame 120 are the top frame and the bottom frame of the folding screen electronic device in the unfolded state. Please refer to Figure 1 , in some embodiments of the present application, the first frame 110 and the second frame 120 can be two opposite frames of the whole machine metal 100 of the folding screen electronic device. Among them, during the folding or unfolding process of the folding screen electronic device, the whole machine metal 100 can be folded or unfolded with the folding screen electronic device. It should be noted that the whole machine metal 100 can be used as the middle frame of the folding screen electronic device.

[0028] It can be understood that when the folding screen electronic device is in the folded state, the first frame 110 and the second frame 120 face each other, and the first antenna assembly 130 and the second antenna assembly 140 face each other. Specifically, please refer to Figure 2, in some embodiments of the present application, when the folding screen electronic device is in the folded state, some antenna structures in the first antenna assembly 130 face some antenna structures in the second antenna assembly 140. For example, the grounding point 117 in the first antenna assembly 130 faces the second break 122 in the second antenna assembly 140, and the fourth break 119 in the first antenna assembly 130 faces the second break 122 in the second antenna assembly 140. Structurally, the closer the first antenna assembly 130 and the second antenna assembly 140 are, the greater the mutual influence between them. Based on this, embodiments of the present application reconstruct the antenna structure of the first antenna assembly 130 based on the second antenna assembly 140 to reduce the influence of the second antenna assembly 140 on the first antenna assembly 130.

[0029] It should be noted that, compared with the antenna structure of the first antenna assembly 130, the antenna structure of the third antenna assembly 150 is provided with the first impedance tuning circuit 141 and the second impedance tuning circuit 142 in the antenna structure, that is, the antenna structure of the reconstructed third antenna assembly 150 is different from the antenna structure of the first antenna assembly 130. Therefore, the operating frequency band of the third antenna assembly 150 can be different from that of the first antenna assembly 130. In addition, in some embodiments of the present application, the operating frequency band of the third antenna assembly 150 can also be the same as that of the first antenna assembly 130, which can be specifically determined according to the antenna structures before and after reconstruction.

[0030] Wherein, the first impedance tuning circuit 141 can be an impedance tuning circuit composed of at least one of a capacitor and an inductor. Correspondingly, the second impedance tuning circuit 142 can also be an impedance tuning circuit composed of at least one of a capacitor and an inductor.

[0031] The electrical connection between the first electrical connection position 114 and the third electrical connection position 124 can mean that the first electrical connection position 114 is in direct contact with the third electrical connection position 124, or the first electrical connection position 114 and the third electrical connection position 124 are connected through a conductive device. It can be understood that the electrical connection between the first electrical connection position 114 and the third electrical connection position 124 means that the first frame 110 and the second frame 120 are electrically conductive at the first electrical connection position 114 and the third electrical connection position 124.

[0032] Accordingly, the electrical connection between the second electrical connection position 115 and the fourth electrical connection position 125 may mean that the second electrical connection position 115 is in direct contact with the fourth electrical connection position 125, or the second electrical connection position 115 and the fourth electrical connection position 125 are connected through an electrical conductor device. It can be understood that the electrical connection between the second electrical connection position 115 and the fourth electrical connection position 125 means that the first frame 110 and the second frame 120 are electrically conductive at the second electrical connection position 115 and the fourth electrical connection position 125.

[0033] In this embodiment, by providing a first electrical connection position 114 in the first radiator 111, a second electrical connection position 115 in the second radiator 112, and a third electrical connection position 124 and a fourth electrical connection position 125 in the third radiator 121, in this way, when the folding screen electronic device is in the folded state, the first electrical connection position 114 is electrically connected to the third electrical connection position 124, and the second electrical connection position 115 is electrically connected to the fourth electrical connection position 125, so that the first antenna assembly 130, the first impedance tuning circuit 141 and the second impedance tuning circuit 142 can be reconstructed into a third antenna assembly 150. Since when the folding screen is in the folded state, the first antenna assembly 130 can be reconstructed into a new third antenna assembly 150 by electrically connecting with the antenna structure in the second antenna assembly 140, in this way, the influence of the second antenna assembly 140 on the first antenna assembly 130 can be reduced, thereby improving the isolation degree between different antennas located in opposite frames.

[0034] Optionally, the second frame 120 is provided with a second break 122 and a third break 123. The third radiator 121 is located between the second break 122 and the third break 123. The third electrical connection position 124 is located between the second break 122 and the fourth electrical connection position 125. The first frame area 1211 between the second break 122 and the third electrical connection position 124 is the radiator of the first antenna 145. The second frame area 1212 between the third break 123 and the fourth electrical connection position 125 is the radiator of the second antenna 146;

[0035] The first impedance tuning circuit 141 and the second impedance tuning circuit 142 form a first isolation circuit 180 for isolating the first antenna 145 and the second antenna 146.

[0036] In some embodiments of the present application, the first antenna 145 and the second antenna 146 can be monopole antennas. Since the monopole antenna is in a quarter-wavelength mode, the monopole antennas in the foldable screen electronic device can form medium and high-frequency antennas, wireless fidelity (WIFI) antennas, etc. in terms of physical length. Among them, the first antenna 145 and the second antenna 146 can be antennas of the same frequency band or antennas of different frequency bands.

[0037] In this embodiment, the first isolation circuit 180 can separate the first antenna 145 and the second antenna 146, so that the first antenna 145 and the second antenna 146 can form a set of back-to-back antennas. Therefore, the isolation degree between the first antenna 145 and the second antenna 146 can be improved, that is, the degree of mutual influence between the first antenna 145 and the second antenna 146 can be reduced.

[0038] Among them, when the first antenna 145 and the second antenna 146 are antennas of the same frequency band, the isolation degree of the first isolation circuit 180 is relatively poor. Based on this, in the embodiments of the present application, the first isolation circuit 180 is reconstructed based on the antenna structure in the first antenna assembly 130 to improve the isolation degree between the first antenna 145 and the second antenna 146.

[0039] Optionally, the first antenna assembly 130 further includes a first capacitor 133, and the first capacitor 133 is disposed across the first break 113.

[0040] When the foldable screen electronic device is in a folded state, the first isolation circuit 180 and the first capacitor 133 are reconstructed into a second isolation circuit 190.

[0041] The above-mentioned first capacitor 133 being disposed across the first break 113 means that one end of the first radiator 111 facing the first break 113 is electrically connected to one end of the second radiator 112 facing the first break 113 through the first capacitor 133, that is, one end of the first capacitor 133 is electrically connected to one end of the first radiator 111 facing the first break 113, and the other end of one end of the first capacitor 133 is electrically connected to one end of the first radiator 111 facing the first break 113.

[0042] Please refer to Figure 4, the above-mentioned first radiator 111 may include a first tuning point 1110, the second radiator 112 may include a second tuning point 1111, the first circuit may be a capacitor in a circuit board, and the first tuning point 1110 is electrically connected to the second tuning point 1111 through the first capacitor 133. Among them, the circuit board may be a Printed Circuit Board (PCB).

[0043] It can be understood that the above-mentioned second antenna assembly 140 and the first capacitor 133 can be reconstructed into a fourth antenna assembly 160. Please refer to Figure 4 , in some embodiments of the present application, for the structural schematic diagram of the first antenna assembly 130, please refer to Figure 9 For the structural schematic diagram of the third antenna assembly 150 obtained after reconstructing the first antenna assembly 130 and the structural schematic diagram of the second antenna assembly 140, please refer to Figure 10 For the structural schematic diagram of the fourth antenna assembly 160 obtained after reconstructing the second antenna assembly 140. Among them, the first impedance tuning circuit 141 includes a second capacitor 1411, the second impedance tuning circuit 142 includes a third capacitor 1421, that is, the first isolation circuit 180 includes Figure 6 the second capacitor 1411 and the third capacitor 1421 in Figure 9 Accordingly, the second isolation circuit 190 includes

[0044] Please refer to Figure 11 (a), during the operation of the first antenna 145 (Ant1 0°) and the second antenna 146 (Ant2 0°), the common mode (CM) return current to ground is strong and the current is symmetric. The matching at ② can have a loading effect on the common mode, but has no influence on the differential mode impedance. Therefore, the common mode impedance can be adjusted by adding a capacitor at the ground return point, that is, the common mode impedance is adjusted by the first capacitor 133 C1. Accordingly, please refer to Figure 11 (b), during the operation of the first antenna 145 (Ant1 0°) and the second antenna 146 (Ant2 0°), the differential mode return current to ground is weak and the current is asymmetric. The matching at ① has a loading effect on the differential mode impedance and has no influence on the common mode impedance at the same time. Therefore, the differential mode impedance can be adjusted by adding capacitors at both ends of the ground return, that is, the differential mode impedance is adjusted by the second capacitor 1411 C2 and the third capacitor 1421 C3.

[0045] In this embodiment, since the first capacitor 133 can adjust the common-mode impedance between the first antenna 145 and the second antenna 146, and the first isolation circuit 180 can adjust the differential-mode impedance between the first antenna 145 and the second antenna 146, thus, by adjusting the capacitance value of the first capacitor 133 and the parameters of the devices in the first isolation circuit 180, the adjustment of the common-mode impedance and the differential-mode impedance between the first antenna 145 and the second antenna 146 can be achieved, which is beneficial to improving the isolation degree between the first antenna 145 and the second antenna 146. When the first antenna 145 and the second antenna 146 are co-frequency antennas, the isolation degree between the co-frequency antennas can be improved.

[0046] Optionally, the first capacitor 133 is used to adjust the common-mode impedance between the first antenna 145 and the second antenna 146, and the first impedance tuning circuit 141 and the second impedance tuning circuit 142 are used to adjust the differential-mode impedance between the first antenna 145 and the second antenna 146, where the common-mode impedance is equal to the differential-mode impedance.

[0047] It can be understood that in Figure 10 the embodiment shown, by adjusting the capacitance values of the first capacitor 133, the second capacitor 1411, and the third capacitor 1421, the common-mode impedance can be made equal to the differential-mode impedance.

[0048] In this embodiment, since the first capacitor 133 is used to adjust the common-mode impedance between the first antenna 145 and the second antenna 146, and the first impedance tuning circuit 141 and the second impedance tuning circuit 142 are used to adjust the differential-mode impedance between the first antenna 145 and the second antenna 146, therefore, by making the common-mode impedance equal to the differential-mode impedance, in the working process of the first antenna 145 and the second antenna 146, the feeding of one antenna can cancel out the differential-mode current of the other antenna, thereby improving the isolation degree between the first antenna 145 and the second antenna 146.

[0049] Optionally, please refer to Figure 4 , the frame area between the second break 122 and the third electrical connection position 124 includes a first feeding point 126, and the frame area between the third break 123 and the fourth electrical connection position 125 includes a second feeding point 127;

[0050] The first antenna 145 includes a first feed source 143, the second antenna 146 includes a second feed source 144, the first feed source 143 is electrically connected to the first feeding point 126, and the second feed source 144 is electrically connected to the second feeding point 127.

[0051] Please refer to Figure 5 andFigure 6 , in some embodiments of the present application, the first feeding point 126 may be electrically connected to the first elastic sheet 174 in the circuit board, and the first elastic sheet 174 can conduct the first feeding point 126 and the first feed source 143. Correspondingly, the second feeding point 127 may be electrically connected to the second elastic sheet 177 in the circuit board, and the second elastic sheet 177 can conduct the second feeding point 127 and the second feed source 144.

[0052] In this embodiment, by making the frame area between the second break 122 and the third electrical connection position 124 include the first feeding point 126, and the frame area between the third break 123 and the fourth electrical connection position 125 include the second feeding point 127, and the first feed source 143 is electrically connected to the first feeding point 126, and the second feed source 144 is electrically connected to the second feeding point 127, in this way, two monopole antennas can be fabricated in the second frame 120.

[0053] Optionally, please refer to Figure 3 and Figure 4 , the first radiator 111 includes a grounding point 117 and a third feeding point 116, the third feeding point 116 is located between the grounding point 117 and the first break 113, the first electrical connection position 114 is located between the third feeding point 116 and the first break 113, the second radiator 112 includes a fourth feeding point 118, the first frame 110 is provided with a fourth break 119, the second radiator 112 is located between the first break 113 and the fourth break 119, and the second electrical connection position 115 is located between the fourth feeding point 118 and the first break 113;

[0054] The frame area between the grounding point 117 and the fourth feeding point 118 is the radiator of the third antenna 134; the frame area between the grounding point 117 and the fourth feeding point 118 is the radiator of the fourth antenna 135.

[0055] Please refer to Figure 4 , the first antenna assembly 130 further includes a third feed source and a fourth feed source 132, the third feed source is electrically connected to the third feeding point 116, and the third feed source and the frame area between the grounding point 117 and the fourth feeding point 118 form the third antenna 134. The fourth feed source 132 is electrically connected to the fourth feeding point 118, and the fourth feed source 132 and the frame area between the grounding point 117 and the fourth feeding point 118 form the fourth antenna 135.

[0056] Please refer to Figure 1 、 Figure 4 and Figure 6, in some embodiments of the present application, the first feeding point 126 can be electrically connected to the third elastic sheet 172 in the circuit board, and the third elastic sheet 172 can enable the third feeding point 116 to be conducted with the third feed source. Correspondingly, the fourth feeding point 118 can be electrically connected to the fourth elastic sheet 173 in the circuit board, and the fourth elastic sheet 173 can enable the fourth feeding point 118 to be conducted with the fourth feed source 132. The grounding point 117 can be electrically connected to the fifth elastic sheet 171 in the circuit board, and the fifth elastic sheet 171 can enable the grounding point 117 to be conducted with the main ground. The above-mentioned third electrical connection position 124 can be electrically connected to the first impedance tuning circuit 141 in the circuit board through the sixth elastic sheet 175. The above-mentioned fourth electrical connection position 125 can be electrically connected to the second impedance tuning circuit 142 in the circuit board through the seventh elastic sheet 176.

[0057] It can be understood that the radiators of the above-mentioned third antenna 134 and fourth antenna 135 are the same, both being the frame area between the grounding point 117 and the second feeding point 127. That is, the third antenna 134 and the fourth antenna 135 are two antenna structures in a common-body and split-feed form, and the feeding points of the two antennas are located on the same radiator.

[0058] The above-mentioned first break 113, second break 122, third break 123, and fourth break 119 can be filled with plastic media respectively.

[0059] In this embodiment, since the above-mentioned first antenna assembly 130 includes two antenna structures, namely the third antenna 134 and the fourth antenna 135, therefore, the reconstructed third antenna assembly 150 can also include two antenna structures. The above-mentioned first impedance tuning circuit 141 and second impedance tuning circuit 142 can be used to adjust the impedance of the third antenna 134 and the fourth antenna 135, so that the reconstructed third antenna 134 and the reconstructed fourth antenna 135 can work in new operating frequency bands respectively. In this way, since the operating frequency bands of the third antenna 134 and the fourth antenna 135 are different in the folded state and the unfolded state, thus, it is beneficial to integrate more antenna frequency bands within the first frame 110.

[0060] Optionally, when the folding screen electronic device is in the unfolded state, the operating frequency band of the third antenna 134 is the first frequency band, the operating frequency band of the fourth antenna 135 is the second frequency band, and the maximum frequency point of the first frequency band is less than the minimum frequency point of the second frequency band;

[0061] When the folding screen electronic device is in the folded state, the operating frequency band of the third antenna 134 is the third frequency band, the operating frequency band of the fourth antenna 135 is the fourth frequency band, the maximum frequency point of the third frequency band is less than the minimum frequency point of the fourth frequency band, the first frequency band and the third frequency band are different frequency bands, and the second frequency band and the fourth frequency band are different frequency bands.

[0062] Among them, the first frequency band and the second frequency band can be two frequency bands with a relatively large difference. Correspondingly, the third frequency band and the fourth frequency band can also be two frequency bands with a relatively large difference. In this way, the mutual influence between the third antenna 134 and the fourth antenna 135 can be reduced.

[0063] Please refer to Figure 4 , in Figure 4 In the illustrated embodiment, the third antenna 134 is an Inverted-F antenna (IFA). It mainly operates in the Global Positioning System (GPS) frequency band using the quarter-mode of the IFA antenna. The first capacitor 133 connected in parallel controls the coupling amount of the first break 113 and is used to adjust the antenna length so that the third antenna 134 can operate in the lower GPS L1 / L5 frequency band. The fourth antenna 135 is a loop antenna. Since the operating mode of the loop antenna is the half-mode, from the perspective of physical length, the operating frequency band is higher than that of the IFA antenna. For example, the fourth antenna 135 can operate in the WIFI or N78 frequency band. The position of the fourth feed point can be adjusted according to the specific operating frequency band of the fourth antenna 135, or the coupling amount of the break can be controlled by the first capacitor 133 connected in parallel to adjust the antenna length so that the antenna can operate in a lower frequency band.

[0064] Please refer to Figure 9 , for the circuit structure diagram of the reconstructed third antenna assembly 150. In Figure 9 The illustrated third antenna assembly 150, relative to the first antenna assembly 130, newly adds the parallel first impedance tuning circuit 141 and the second impedance tuning circuit 142. The first impedance tuning circuit 141 and the second impedance tuning circuit 142 can be used to adjust the impedances of the third antenna 134 and the fourth antenna 135 so that the third antenna 134 and the fourth antenna 135 can operate in the latest operating frequency band. From the perspective of user experience, in the unfolded state, considering the user's usage scenario, the third antenna 134 can operate in the GPS L1 / L5 frequency band to achieve the positioning and navigation of the whole machine. When the whole machine is in the folded state, considering the convenience of the user's holding, through the tuning of the first impedance tuning circuit 141 and the second impedance tuning circuit 142, the third antenna 134 can operate at a low frequency, mainly for making calls. From the perspective of user experience, in the unfolded state, the fourth antenna 135 can operate in the WIFI frequency band, which is convenient for the user to surf the Internet, watch videos, etc. When in the folded state, the fourth antenna 135 operates in the N78 / N41 frequency band to achieve the functions of traffic and calls. The above-described working states are just one of them, and the specific ones can be allocated according to the scenarios of actual projects.

[0065] In this embodiment, when the folding screen electronic device is in the unfolded state, the operating frequency band of the third antenna 134 is the first frequency band, the operating frequency band of the fourth antenna 135 is the second frequency band, and the maximum frequency point of the first frequency band is less than the minimum frequency point of the second frequency band; when the folding screen electronic device is in the folded state, the operating frequency band of the third antenna 134 is the third frequency band, the operating frequency band of the fourth antenna 135 is the fourth frequency band, the maximum frequency point of the third frequency band is less than the minimum frequency point of the fourth frequency band, the first frequency band and the third frequency band are different frequency bands, and the second frequency band and the fourth frequency band are different frequency bands. In this way, the first antenna assembly 130 can have good antenna performance in both the folded state and the unfolded state.

[0066] Optionally, please refer to Figure 12 The first antenna assembly 130 further includes a first inductor 1112 and a second inductor 1113, and the inductance value of the first inductor 1112 is less than the inductance value of the second inductor 1113;

[0067] The third feeding point 116 is electrically connected to the radio frequency circuit 131 of the third antenna 134 through the first inductor 1112, and the fourth feeding point 118 is grounded through the second inductor 1113.

[0068] Among them, the above-mentioned fourth feeding point 118 is grounded through the second inductor 1113, that is, the second inductor 1113 is connected in parallel between the fourth feeding point 118 and the fourth feeder 132, and the fourth feeder 132 is the feeder of the fourth antenna 135. The radio frequency circuit 131 of the third antenna 134 is also the third feeder. It can be understood that the first feeder 143, the second feeder 144, the third feeder, and the fourth feeder 132 in the embodiments of the present application may be four different radio frequency circuits.

[0069] The inductance values of the above-mentioned first inductor 1112 and second inductor 1113 can be set according to actual needs. Among them, the first inductor 1112 may be a small inductor, and the second inductor 1113 may be a large inductor. For example, the inductance value of the first inductor 1112 ranges from 1 nH to 3.3 nH; the inductance value of the second inductor 1113 ranges from 33 nH to 68 nH.

[0070] In this embodiment, since the operating frequency band of the third antenna 134 is always lower than that of the fourth antenna 135, therefore, by connecting a small inductor in series at the feeding position of the third antenna 134 and connecting a large inductor in parallel at the feeding position of the fourth antenna 135, in this way, it is beneficial to further reduce the mutual influence between the third antenna 134 and the fourth antenna 135, that is, the isolation degree between the third antenna 134 and the fourth antenna 135 can be further improved.

[0071] Optionally, the first impedance tuning circuit 141 includes a second capacitor 1411, and the second impedance tuning circuit 142 includes a third capacitor 1421.

[0072] In this embodiment, since the first impedance tuning circuit 141 includes the second capacitor 1411 and the second impedance tuning circuit 142 includes the third capacitor 1421, in this way, the third electrical connection position 124 and the fourth electrical connection position 125 can be grounded through high frequency respectively, so as to achieve impedance tuning and increase the isolation degree between the first antenna 145 and the second antenna 146.

[0073] Optionally, among the first electrical connection position 114 and the third electrical connection position 124, one is a first groove and the other is a first protrusion; among the second electrical connection position 115 and the fourth electrical connection position 125, one is a second groove and the other is a second protrusion;

[0074] When the folding screen electronic device is in the folded state, the first protrusion is embedded in the first groove, and the second protrusion is embedded in the second groove.

[0075] Please refer to Figure 7 , in some embodiments of the present application, the above-mentioned first electrical connection position 114 is a first protrusion, and the second electrical connection position 115 is a second protrusion, that is, both the first electrical connection position 114 and the second electrical connection position 115 are protrusions, the third electrical connection position 124 is a first groove, and the fourth electrical connection position 125 is a second groove, that is, the above-mentioned third electrical connection position 124 and the fourth electrical connection position 125 are both grooves. In this way, when the folding screen electronic device is in the folded state, the two protrusions at the first electrical connection position 114 and the second electrical connection position 115 can be correspondingly embedded in the two grooves at the third electrical connection position 124 and the fourth electrical connection position 125 to realize the electrical connection between the first electrical connection position 114 and the third electrical connection position 124, and the electrical connection between the second electrical connection position 115 and the fourth electrical connection position 125. Please refer to Figure 8 FIG. is a schematic structural diagram of the first electrical connection position 114 embedded in the third electrical connection position 124. It can be understood that the schematic structural diagram of the second electrical connection position 115 embedded in the fourth electrical connection position 125 is the same as Figure 8 the same.

[0076] It should be noted that in some other embodiments of the present application, the first electrical connection position 114 and the second electrical connection position 115 can both be grooves, and the third electrical connection position 124 and the fourth electrical connection position 125 can both be protrusions. Alternatively, among the first electrical connection position 114 and the second electrical connection position 115, one is a groove and the other is a protrusion; and among the third electrical connection position 124 and the fourth electrical connection position 125, one is a groove and the other is a protrusion. Specifically, it can be set according to needs.

[0077] In this embodiment, by making one of the first electrical connection position 114 and the third electrical connection position 124 a first groove and the other a first protrusion; and one of the second electrical connection position 115 and the fourth electrical connection position 125 a second groove and the other a second protrusion; when the folding screen electronic device is in the folded state, the first protrusion is embedded in the first groove, and the second protrusion is embedded in the second groove. In this way, the above-mentioned first protrusion and second protrusion can be embedded in the corresponding grooves to realize the electrical connection between the first electrical connection position 114 and the third electrical connection position 124, and the electrical connection between the second electrical connection position 115 and the fourth electrical connection position 125. In addition, the above-mentioned first protrusion and second protrusion can also play a role in increasing the structural strength.

[0078] It should be noted that the folding screen electronic device provided by the embodiments of the present application has at least the following beneficial effects:

[0079] By utilizing the circuit reconfigurability in the unfolded state and the folded state, in the folded state, frequency tuning of the antenna and optimization of the isolation degree of two-by-two co-frequency and common-ground antennas can be realized, enabling the folding screen electronic device to achieve a better antenna design and optimize the user experience more flexibly in a worse folding environment.

[0080] In addition, by cleverly utilizing the structural form of the folding screen electronic device, when the folding screen electronic device is unfolded, it can be used to reduce the electrical length of the antenna and solve the isolation degree of the antennas in the common-ground state. When the folding screen electronic device is folded, the isolation degree problem between two-by-two antennas can be solved through structural reconfigurability, and reconfigurability of different frequency bands of the antenna can be realized.

[0081] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A foldable screen electronic device, characterized in that, It includes a first frame and a second frame. The first frame includes a first antenna component. The first antenna component includes a first radiator and a second radiator. There is a first gap between the first radiator and the second radiator. The first radiator includes a first electrical connection position, and the second radiator includes a second electrical connection position; The second frame includes a second antenna component. The second antenna component includes a third radiator. The third radiator includes a third electrical connection position and a fourth electrical connection position. There is no slit between the third electrical connection position and the fourth electrical connection position. The third electrical connection position is grounded through a first impedance tuning circuit, and the fourth electrical connection position is grounded through a second impedance tuning circuit; When the folding screen electronic device is in the folded state, the first frame and the second frame are opposite to each other. The first electrical connection position is electrically connected to the third electrical connection position, and the second electrical connection position is electrically connected to the fourth electrical connection position. The first antenna component, the first impedance tuning circuit, and the second impedance tuning circuit are reconstructed into a third antenna component.

2. The foldable screen electronic device according to claim 1, wherein The second frame is provided with a second gap and a third gap. The third radiator is located between the second gap and the third gap. The third electrical connection position is located between the second gap and the fourth electrical connection position. The first frame area between the second gap and the third electrical connection position is the radiator of the first antenna, and the second frame area between the third gap and the fourth electrical connection position is the radiator of the second antenna; The first impedance tuning circuit and the second impedance tuning circuit form a first isolation circuit for isolating the first antenna and the second antenna.

3. The foldable screen electronic device according to claim 2, wherein The first antenna component further includes a first capacitor, and the first capacitor straddles the first gap; When the folding screen electronic device is in the folded state, the first isolation circuit and the first capacitor are reconstructed into a second isolation circuit.

4. The foldable screen electronic device according to claim 3, wherein The first capacitor is used to adjust the common-mode impedance between the first antenna and the second antenna. The first impedance tuning circuit and the second impedance tuning circuit are used to adjust the differential-mode impedance between the first antenna and the second antenna. Among them, the common-mode impedance is equal to the differential-mode impedance.

5. The foldable screen electronic device according to claim 2, wherein The frame area between the second gap and the third electrical connection position includes a first feeding point, and the frame area between the third gap and the fourth electrical connection position includes a second feeding point.

6. The foldable screen electronic device according to claim 1, wherein The first radiator includes a grounding point and a third feeding point. The third feeding point is located between the grounding point and the first gap. The first electrical connection position is located between the third feeding point and the first gap. The second radiator includes a fourth feeding point. The first frame is provided with a fourth gap. The second radiator is located between the first gap and the fourth gap. The second electrical connection position is located between the fourth feeding point and the first gap; The frame area between the grounding point and the fourth feeding point is the radiator of the third antenna; The frame area between the grounding point and the fourth feeding point is the radiator of the fourth antenna.

7. The foldable screen electronic device according to claim 6, wherein, When the folding screen electronic device is in the unfolded state, the operating frequency band of the third antenna is the first frequency band, the operating frequency band of the fourth antenna is the second frequency band, and the maximum frequency point of the first frequency band is less than the minimum frequency point of the second frequency band; When the folding screen electronic device is in the folded state, the operating frequency band of the third antenna is the third frequency band, the operating frequency band of the fourth antenna is the fourth frequency band, the maximum frequency point of the third frequency band is less than the minimum frequency point of the fourth frequency band, the first frequency band and the third frequency band are different frequency bands, and the second frequency band and the fourth frequency band are different frequency bands.

8. The foldable screen electronic device according to claim 7, wherein The first antenna assembly further includes a first inductor and a second inductor, and the inductance value of the first inductor is less than the inductance value of the second inductor; The third feeding point is electrically connected to the radio frequency circuit of the third antenna through the first inductor, and the fourth feeding point is grounded through the second inductor.

9. The foldable screen electronic device according to claim 1, wherein, The first impedance tuning circuit includes a second capacitor, and the second impedance tuning circuit includes a third capacitor.

10. The foldable screen electronic device according to any one of claims 1 to 9, characterized in that, Among the first electrical connection position and the third electrical connection position, one is a first groove and the other is a first protrusion; among the second electrical connection position and the fourth electrical connection position, one is a second groove and the other is a second protrusion; When the folding screen electronic device is in the folded state, the first protrusion is embedded in the first groove, and the second protrusion is embedded in the second groove.

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