Electronic device

Abstract

The application provides an electronic device, which comprises a first body, an antenna unit, a second body and an electrical connecting element. The second body is foldable or slidable relative to the first body, so that a second metal plate of at least part of the second body overlaps a first metal plate of the first body and forms a resonant cavity. An excitation signal transmitted by the antenna unit can excite the resonant cavity to form a first resonance. The electrical connecting element is electrically connected with the first metal plate and the second metal plate respectively, so as to change the form of the resonant cavity and make the excitation signal excite the resonant cavity to form a second resonance different from the first resonance. Based on this, in the folded or slidable form, the electrical connecting element can make the first metal plate and the second metal plate short-circuit and can destroy the resonant boundary condition of the resonant cavity. The electrical connecting element can make the resonant cavity not form the first resonance which can reduce the radiation performance of the antenna unit, so as to ensure the radiation performance of the antenna unit.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an electronic device. Background Technology

[0002] With the development of communication technology, electronic devices such as smartphones can be folded or slid, allowing them to have unfolded, folded, or sliding forms. Furthermore, electronic devices can include antennas to provide mobile communication services.

[0003] However, compared to the unfolded form, the surrounding environment of the antenna changes adversely when the electronic device is in a folded or sliding form, resulting in a decrease in the antenna's radiation performance. Summary of the Invention

[0004] This application provides an electronic device that can guarantee the radiation performance of the electronic device in a folded or sliding configuration.

[0005] This application provides an electronic device, including:

[0006] The first body includes a first metal plate;

[0007] An antenna element is disposed on the first body, and the antenna element is used to transmit excitation signals;

[0008] The second body includes a second metal plate, which is foldable or slidable relative to the first body to allow at least a portion of the second metal plate to overlap with the first metal plate, thereby forming a resonant cavity between the second metal plate and the first metal plate. The excitation signal is used to excite the resonant cavity to form a first resonance.

[0009] When at least part of the second metal plate overlaps with the first metal plate, the electrical connector is electrically connected to both the first metal plate and the second metal plate to change the shape of the resonant cavity and cause the excitation signal to excite the resonant cavity to form a second resonance different from the first resonance.

[0010] The electronic device of this application includes a first body, a second body, an antenna element, and an electrical connector. The first body and the second body can be folded or slid relative to each other, allowing the first metal plate of the first body and the second metal plate of the second body to overlap and form a resonant cavity. The excitation signal transmitted by the antenna element can excite the resonant cavity to generate a first resonance. The electrical connector can be electrically connected to the first and second metal plates in the folded state. The electrical connector can change the shape of the resonant cavity and cause the excitation signal to excite the resonant cavity to form a second resonance different from the first resonance. Based on this, when the electronic device of this application does not have the electrical connector, the first resonance formed by the resonant cavity in the folded or slid state will reduce the radiation performance of the antenna element. When the electronic device has the electrical connector, in the folded or slid state, the electrical connector can short-circuit the first and second metal plates and can destroy the resonance boundary conditions of the resonant cavity. The electrical connector can prevent the resonant cavity from forming a first resonance that would reduce the radiation performance of the antenna element. Therefore, in the folded or slid state, the resonant cavity after the electrical connector is installed will not significantly affect the radiation performance of the antenna element. The electronic device with the electrical connector can guarantee the radiation performance of the antenna element in the folded or slid state. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.

[0013] Figure 2 for Figure 1 The diagram shows the structure of the electronic device in another configuration.

[0014] Figure 3 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.

[0015] Figure 4 for Figure 3 The diagram shows the structure of the electronic device in another configuration.

[0016] Figure 5 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application.

[0017] Figure 6 for Figure 5 The diagram shows the structure of the electronic device in another configuration.

[0018] Figure 7This is a schematic diagram of a fourth structure of an electronic device provided in an embodiment of this application.

[0019] Figure 8 for Figure 7 The diagram shows the structure of the electronic device in another configuration.

[0020] Figure 9 for Figure 1 The diagram shows the S-parameter curves of the antenna element 300 when transmitting the excitation signal.

[0021] Figure 10 for Figure 1 The diagram shows the efficiency curve of the antenna element 300 when transmitting the excitation signal.

[0022] Figure 11 for Figure 2 The diagram shows the current distribution of the electric field formed inside the resonant cavity.

[0023] Figure 12 for Figure 2 The diagram shows an electric field distribution within the resonant cavity.

[0024] Figure 13 for Figure 2 The diagram shows another electric field distribution within the resonant cavity.

[0025] Figure 14 for Figure 2 The diagram shows the S-parameter curves of the antenna element 300 when transmitting the excitation signal.

[0026] Figure 15 for Figure 2 The diagram shows the efficiency curve of the antenna element 300 when transmitting the excitation signal.

[0027] Figure 16 for Figure 4 The diagram shows the S-parameter curves of the antenna element 300 when transmitting the excitation signal.

[0028] Figure 17 for Figure 4 The diagram shows the efficiency curve of the antenna element 300 when transmitting the excitation signal.

[0029] Figure 18 This is a fifth structural schematic diagram of the electronic device provided in the embodiments of this application.

[0030] Figure 19 for Figure 18 The diagram shows the structure of the electronic device in another configuration.

[0031] Figure 20 This is a sixth structural schematic diagram of the electronic device provided in the embodiments of this application. Detailed Implementation

[0032] The following will refer to the embodiments of this application. Figures 1 to 20 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] This application provides an electronic device 10. The electronic device 10 can be a smartphone, tablet computer, or other similar device; it can also be a gaming device, augmented reality (AR) device, automotive device, data storage device, audio playback device, video playback device, laptop computer, desktop computing device, etc. Please refer to... Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a first structure of the electronic device 10 provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shows the electronic device 10 in another configuration. The electronic device 10 includes a first body 100, a second body 200, and an antenna unit 300.

[0034] The first body 100 may include a first metal plate 110, and the second body 200 may include a second metal plate 210. The first body 100 and the second body 200 may be folded or slid toward each other so that at least a portion of the second body 200 and the first body 100 may overlap. During this process, the first metal plate 110 may move with the first body 100, and the second metal plate 210 may move with the second body 200, so that at least a portion of the first metal plate 110 and the second metal plate 210 may overlap with each other as the first body 100 and the second body 200 move. The first metal plate 110 and the second metal plate 210 may form a resonant cavity 101. Antenna unit 300 can be disposed on the first body 100. Antenna unit 300 can transmit excitation signal and transmit electromagnetic wave signal in free space. When the first body 100 and the second body 200 are folded or slid together to form a resonant cavity 101, the excitation signal can oscillate in the resonant cavity 101. The excitation signal can excite the resonant cavity 101 to form a first resonance. The first resonance can support a first frequency. The resonant point of the first resonance can be the center frequency point of the first frequency.

[0035] Please refer to the following: Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of a second structure of the electronic device 10 provided in the embodiments of this application. Figure 4The diagram shown in Figure 3 illustrates the electronic device 10 in another configuration. The electronic device 10 of this embodiment may further include an electrical connector 400.

[0036] When the first body 100 and the second body 200 are folded or slid together to form a resonant cavity 101 with the first metal plate 110 and the second metal plate 210, the electrical connector 400 can be electrically connected to the first metal plate 110 and the second metal plate 210 respectively. The electrical connector 400 can change the shape of the resonant cavity 101. At this time, the excitation signal can excite the resonant cavity 101 to form a second resonance. This second resonance can support a second frequency, and the resonant point of the second resonance can be the center frequency of the second frequency, which is different from the first frequency. The second resonance can prevent the resonant cavity 101 from being excited to produce the first resonance, and the second resonance can prevent the electronic device 10 from forming the first resonance and affecting the radiation performance of the antenna element 300.

[0037] The first metal plate 110 and the second metal plate 210 can be thin metal sheets or plates on the first body 100 and the second body 200, respectively. For example, the first metal plate 110 can be a middle plate or circuit board structure on the first body 100, or it can be a metal shell of the first body 100, such as a metal back shell structure. Similarly, the second metal plate 210 can be a middle plate or circuit board structure on the second body 200, or it can be a metal shell of the second body 200, such as a metal back shell structure. The first metal plate 110 and the second metal plate 210 can provide support for the electronic devices in the electronic device 10, so as to install the electronic devices in the electronic device 10 together. For example, electronic devices such as cameras, receivers, radio frequency modules, control modules, and power supplies 900 in the electronic device 10 can be installed on the first metal plate 110 and the second metal plate 210 for fixation. During the folding or sliding operation, the first body 100 and the second body 200 can switch between an unfolded state and an overlapped state. The first body 100 and the second body 200 can drive the first metal plate 110 and the second metal plate 210 to form the aforementioned resonant cavity 101 in the overlapped state.

[0038] When the first body 100 and the second body 200 are folded, such as Figure 1 , Figure 3 As shown, the first body 100 and the second body 200 can move left and right and unfold relative to each other to an unfolded state; as Figure 2 , Figure 4 As shown, the first body 100 and the second body 200 can also move left and right and fold into an overlapping state, at which time the first metal plate 110 and the second metal plate 210 can form a resonant cavity 101. It is understood that the folding direction of the first body 100 and the second body 200 during the folding operation is not limited to... Figure 1 and Figure 2 The direction of the left and right folds shown is, for example, please refer to... Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of a second structure of the electronic device 10 provided in the embodiments of this application. Figure 6 for Figure 5 The schematic diagram shown is of the electronic device 10 in another configuration. Figure 5 In the illustrated embodiment, the first body 100 and the second body 200 can move up and down and unfold relative to each other to an unfolded state during the folding operation; Figure 6 In the embodiments described, when the first body 100 and the second body 200 are folded, they can move up and down and fold into an overlapping state. At this time, the first metal plate 110 and the second metal plate 210 can also form a resonant cavity 101. Based on this, the embodiments of this application do not limit the specific folding method of the first body 100 and the second body 200.

[0039] For example, when the first body 100 and the second body 200 perform a sliding operation, please refer to... Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of a third structure of the electronic device 10 provided in the embodiments of this application. Figure 8 for Figure 7 The diagram shows the electronic device 10 in another configuration. Figure 7 As shown, the first body 100 and the second body 200 can slide relatively far apart to an unfolded state; as Figure 8 As shown, the first body 100 and the second body 200 can also slide towards each other to overlap, at which time the first metal plate 110 and the second metal plate 210 can also form a resonant cavity 101.

[0040] It is understood that since the first body 100, the second body 200, the first metal plate 110, and the second metal plate 210 all have a certain thickness, when the first body 100 and the second body 200 are folded or slid and are in an overlapping state, the first body 100, the first metal plate 110, the second body 200, and the second metal plate 210 can be stacked in the thickness direction. Furthermore, since the dimensions of the first metal plate 110 and the second metal plate 210 can be the same or different, and the dimensions of the first body 100 and the second body 200 can be the same or different, in the overlapping state, all of the first body 100 can overlap with the second body 200, or a portion of the first body 100 can overlap with the second body 200; all of the first metal plate 110 can overlap with the second metal plate 210, or a portion of the first metal plate 110 can overlap with the second metal plate 210. This application does not limit the specific structure of the first body 100 and the second body 200, or the first metal plate 110 and the second metal plate 210 in an overlapping state.

[0041] Among them, such as Figures 1 to 6 As shown, the electronic device 10 may further include a pivot 500, which can be connected to the first body 100 and the second body 200. The pivot 500 can also be connected to the first metal plate 110 and the second metal plate 210. The pivot 500 allows the first body 100 and the second body 200 to be folded relative to each other. When the pivot 500 is made of metal, the first metal plate 110, the pivot 500, and the second metal plate 210 can together form a resonant cavity 101. The first metal plate 110 and the second metal plate 210 can be the top plate and the bottom plate of the resonant cavity 101, and the pivot 500 can be one side wall of the resonant cavity 101. In this case, the resonant cavity 101 can be a semi-open cavity.

[0042] Of course, in other embodiments, the shaft 500 may be made of a non-conductive material, or as... Figure 7 and Figure 8 As shown, the electronic device 10 does not include the rotating shaft 500 (the first body 100 and the second body 200 slide through the slide rail structure). At this time, only the first metal plate 110 and the second metal plate 210 together form the resonant cavity 101, which can be a fully open cavity.

[0043] Among them, such as Figure 1 and Figure 3 As shown, when the first body 100 and the second body 200 are in the unfolded state, the first metal plate 110 and the second metal plate 210 will not overlap each other, and the first metal plate 110 and the second metal plate 210 will not form a resonant cavity 101. The resonant cavity 101 will not affect the radiation performance of the antenna element 300, and the antenna element 300 has superior radiation performance.

[0044] For example, please refer to Figure 9 and Figure 10 , Figure 9 for Figure 1 The diagram shows the S-parameter curves of antenna element 300 when transmitting excitation signals. Figure 10 for Figure 1 The diagram shows the efficiency curve of antenna element 300 when transmitting excitation signals. When antenna element 300 transmits excitation signals in the B3 band (1710MHz to 1880MHz), Figure 9 Curve S1 can be the reflection coefficient curve of antenna element 300 when the first body 100 and the second body 200 are in the deployed state. Figure 10 Curves S2 and S3 represent the radiation efficiency and system efficiency of antenna element 300 when the first body 100 and the second body 200 are in the deployed state. From curves S1 to S3, it can be seen that the average system efficiency of antenna element 300 in the B3 frequency band is approximately -3.2 dB, indicating that antenna element 300 has superior radiation performance.

[0045] Among them, such as Figure 2 As shown, when the first body 100 and the second body 200 are in an overlapping state, the first metal plate 110 and the second metal plate 210 can form a resonant cavity 101. At this time, the electromagnetic waves generated when the antenna unit 300 transmits the excitation signal will generate a first resonance in the resonant cavity 101 that is not conducive to the radiation performance of the antenna unit 300.

[0046] For example, please refer to Figure 2 Please refer to Figures 11 to 15 , Figure 11 for Figure 2 The diagram shows the current distribution within the resonant cavity 101. Figure 12 for Figure 2 The diagram shows an electric field distribution within the resonant cavity 101. Figure 13 for Figure 2 Another electric field distribution diagram showing the electric field formed inside the resonant cavity 101 is shown. Figure 14 for Figure 2 The diagram shows the S-parameter curves of antenna element 300 when transmitting excitation signals. Figure 15 for Figure 2 The diagram shows the efficiency curve of the antenna element 300 when transmitting the excitation signal.

[0047] When the antenna element 300 transmits an excitation signal and electromagnetic waves in free space, the electromagnetic waves can excite the resonant cavity 101 to produce an inherent first resonant mode of the open or semi-open cavity. This first resonance can generate an induced current and a first electric field within the resonant cavity 101. Figure 11As shown, the induced current is zero at the edge of the resonant cavity 101, and can flow in opposite directions multiple times on multiple surfaces of the resonant cavity 101 (the surfaces of the first metal plate 110 and the second metal plate 210). The induced current can be symmetrically distributed above and below the electrical connection areas of the electrical connector 400 on the first metal plate 110 and the second metal plate 210. Figure 12 and Figure 13 As shown, when the first electric field is distributed within the resonant cavity 101, its maximum electric field value (electric field strength point) is located at the opening edge of the resonant cavity 101, and its minimum electric field value is located at the connection point (e.g., at the pivot 500) where the first body 100 and the second body 200 fold or slide against each other. The electric field can be set in opposite directions multiple times on the edge of the resonant cavity 101, which is parallel to the extension direction of the antenna element 300. Figure 14 and Figure 15 As shown, Figure 14 Curve S4 represents the reflection coefficient curve formed by the antenna element 300 transmitting the excitation signal under the influence of the resonant cavity 101 when the electronic device 10 is not electrically connected. Figure 15 Curves S5 and S6 represent the radiation efficiency and system efficiency curves formed by the antenna unit 300 transmitting an excitation signal under the influence of the resonant cavity 101 when the electronic device 10 is not electrically connected. When the antenna unit 300 transmits an excitation signal in the B3 band (1710MHz to 1880MHz), as shown by curve S4, the antenna unit 300 will exhibit clutter in the resonant cavity 101 at a relatively low frequency point (e.g., 1650MHz) close to the B3 band. This clutter can be generated by the first resonance formed by the resonant cavity 101 under the excitation signal, and the frequency corresponding to this clutter can be the first frequency of the first resonance. As shown by curves S5 and S6, the electronic device 10 will exhibit a dip in radiation efficiency and system efficiency near the frequency (first frequency) of this clutter. Therefore, as shown by curves S4 to S6, the first resonance can interfere with the antenna unit 300, and the first resonance can affect the radiation performance of the antenna unit 300.

[0048] Among them, such as Figure 4 As shown, when the first body 100 and the second body 200 are in an overlapping state, the electrical connector 400 can be electrically connected to the first metal plate 110 and the second metal plate 210. The electrical connector 400 can change the shape of the resonant cavity 101, and the electrical connector 400 can prevent the resonant cavity 101 from forming a first resonance that would damage the radiation performance of the antenna element 300.

[0049] For example, please refer to Figure 4 Please refer to Figure 16 and Figure 17 , Figure 16 for Figure 4 The diagram shows the S-parameter curves of antenna element 300 when transmitting excitation signals. Figure 17 for Figure 4 The diagram shows the efficiency curve of the antenna element 300 when transmitting the excitation signal. Figure 16 Curve S7 represents the reflection coefficient curve formed by the antenna element 300 transmitting excitation signals after the electronic device 10 is electrically connected, under the influence of the resonant cavity 101. Figure 18 Curve S8 represents the radiation efficiency curve formed by the antenna unit 300 transmitting excitation signals under the influence of the resonant cavity 101 when the electronic device 10 is not electrically connected. Curve S9 represents the radiation efficiency curve formed by the antenna unit 300 transmitting excitation signals under the influence of the resonant cavity 101 after the electronic device 10 is electrically connected. Comparing curves S4 and S7, and curves S8 and S9, it can be seen that when the electronic device 10 includes an electrical connector 400, and the electrical connector 400 is electrically connected to the first metal plate 110 and the second metal plate 210 in a folded state, the electrical connector 400 can short-circuit the first metal plate 110 and the second metal plate 210. The electrical connector 400 can disrupt the shape of the resonant cavity 101, preventing the resonant cavity 101 from generating radiation efficiency curves such as those shown in the image. Figures 11 to 13 The excitation electric field shown can eliminate clutter generated by the resonant cavity 101 through electrical connection. Furthermore, the electrical connector 400 ensures that the reflection coefficient curve of the antenna element 300 is free of dips, and that the radiation efficiency and system efficiency curves are also free of dips. At a frequency of 1670MHz in the B3 band, compared to... Figure 2 Regarding the radiation efficiency of the antenna element 300 when the electronic device 10 shown is in a folded state and without the electrical connector 400, Figure 4 The radiation efficiency of the antenna unit 300 is improved by about 1.2 dB when the electronic device 10 is in a folded state and the electrical connector 400 is provided. The electrical connector 400 can improve the performance of the antenna.

[0050] Based on the above description, the electronic device 10 of this application embodiment includes a first body 100, a second body 200, an antenna unit 300, and an electrical connector 400. The first body 100 and the second body 200 can be folded or slid relative to each other, so that the first metal plate 110 of the first body 100 and the second metal plate 210 of the second body 200 overlap to form a resonant cavity 101. The excitation signal transmitted by the antenna unit 300 can excite the resonant cavity 101 to generate a first resonance. The electrical connector 400 can be electrically connected to the first metal plate 110 and the second metal plate 210 in the folded state. The electrical connector 400 can change the shape of the resonant cavity 101 and excite the resonant cavity 101 to form a second resonance different from the first resonance by the excitation signal. Based on this, in the embodiment of this application, when the electronic device 10 is not equipped with the electrical connector 400, the first resonance formed by the resonant cavity 101 in the folded or sliding state will reduce the radiation performance of the antenna unit 300. After the electronic device 10 is equipped with the electrical connector 400, in the folded or sliding state, the electrical connector 400 can short-circuit the first metal plate 110 and the second metal plate 210 and can destroy the resonance boundary condition of the resonant cavity 101. The electrical connector 400 can prevent the resonant cavity 101 from forming the first resonance that would reduce the radiation performance of the antenna unit 300. Therefore, the electronic device 10 equipped with the electrical connector 400 will not have a significant impact on the radiation performance of the antenna unit 300 in the folded or sliding state. The electronic device 10 equipped with the electrical connector 400 can ensure the radiation performance of the antenna unit 300 in the folded or sliding state.

[0051] Please refer to this again. Figures 1 to 8 The antenna element 300 may include an electrically connected feed 310 and a radiating stub 320. The feed 310 and the radiating stub 320 may be disposed on the first body 100. For example, the feed 310 may be disposed on the first metal plate 110, and the radiating stub 320 may be formed on the frame of the first body 100. The feed 310 may provide the aforementioned excitation signal to the radiating stub 320, for example, an excitation signal of the B3 band. The radiating stub 320 may be made of a conductive material and may radiate a wireless signal under the action of the excitation signal.

[0052] It is understood that the antenna element 300 can, but is not limited to, transmit Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, 3rd Generation (3G), 4th Generation (4G), and 5th Generation (5G) mobile communication technologies.

[0053] It is understood that the antenna element 300 may also include a matching circuit (not shown) that can match the impedance of the feed 310 when transmitting the excitation signal so that the radiating stub 320 can transmit the wireless signal.

[0054] Please refer to this again. Figure 3 and Figure 4 The electrical connector 400 may include a first electrical connection portion 410 and a second electrical connection portion 420.

[0055] A first electrical connection portion 410 may be disposed on a first body 100, and a second electrical connection portion 420 may be disposed on a second body 200. One end of the first electrical connection portion 410 may be connected and electrically connected to a first metal plate 110, and one end of the second electrical connection portion 420 may be connected and electrically connected to a second metal plate 210. When the first body 100 and the second body 200 are unfolded relative to each other, the other end of the first electrical connection portion 410 may be separated from and not connected to the other end of the second electrical connection portion 420. When the first body 100 and the second body 200 are folded relative to each other such that at least a portion of the second metal plate 210 overlaps with the first metal plate 110, the other end of the first electrical connection portion 410 may be electrically connected to the other end of the second electrical connection portion 420.

[0056] It is understood that the first electrical connection portion 410 may be, but is not limited to, an electrical contact, metal pad, metal post, metal clip, or other structure disposed on the first metal plate 110. The second electrical connection portion 420 may be, but is not limited to, an electrical contact, metal pad, metal post, metal groove, metal through hole, or other structure disposed on the second metal plate 210. This application embodiment does not limit the specific structure of the first electrical connection portion 410 and the second electrical connection portion 420.

[0057] For example, a groove may be formed on the second electrical connection portion 420. When at least a portion of the second metal plate 210 overlaps with the first metal plate 110, the first electrical connection portion 410 may be confined within the groove of the second electrical connection portion 420 and electrically connected to the bottom wall or side wall of the groove. In this case, the first electrical connection portion 410 can both achieve electrical connection with the second electrical connection portion 420 and engage with the second electrical connection portion 420. The first electrical connection portion 410 and the second electrical connection portion 420 are more adaptable to the folding and unfolding forms of the first metal plate 110 and the second metal plate 210.

[0058] It is understood that when at least a portion of the second metal plate 210 overlaps with the first metal plate 110, the first electrical connection portion 410 and the second electrical connection portion 420 can be electrically connected by the aforementioned snap-fit ​​method, by point-to-point contact, or by magnetic attraction. This application embodiment does not limit the specific electrical connection method of the first electrical connection portion 410 and the second electrical connection portion 420.

[0059] It is understood that when at least a portion of the second metal plate 210 overlaps with the first metal plate 110, the electrical connector 400 (e.g., the first electrical connection portion 410 and the second electrical connection portion 420) can be located inside the resonant cavity 101, or between the first metal plate 110 and the second metal plate 210. Alternatively, when at least a portion of the second metal plate 210 overlaps with the first metal plate 110, the electrical connector 400 (e.g., the first electrical connection portion 410 and the second electrical connection portion 420) can also be located outside the resonant cavity 101, and electrically connected to the first metal plate 110 and the second metal plate 210 respectively outside the resonant cavity 101. This application embodiment does not limit the specific location of the electrical connector 400.

[0060] It should be noted that, in addition to the structure of the first electrical connection portion 410 and the second electrical connection portion 420 described above, the electrical connector 400 in this embodiment can also have other structures. For example, the two ends of the electrical connector 400 can be connected to the first metal plate 110 and the second metal plate 210 respectively, and the electrical connector 400 can be in a stretched and compressed state as the first metal plate 110 and the second metal plate 210 are unfolded and folded. This embodiment does not limit the specific structure of the electrical connector 400.

[0061] The electrical connector 400 of this application embodiment includes a first electrical connection portion 410 and a second electrical connection portion 420 respectively disposed on a first metal plate 110 and a second metal plate 210. When the first metal plate 110 and the second metal plate 210 are unfolded, the first electrical connection portion 410 and the second electrical connection portion 420 can be separated from each other; when the first metal plate 110 and the second metal plate 210 are folded, the first electrical connection portion 410 and the second electrical connection portion 420 can be electrically connected to each other. Therefore, the electrical connector 400 of this application embodiment can better adapt to the folding and unfolding forms of the electronic device 10.

[0062] Please refer to this again. Figure 3 and Figure 4 The first metal plate 110 may be provided with a first electrical connection area 111, and the second metal plate 210 may be provided with a second electrical connection area 211. When at least part of the second metal plate 210 overlaps with the first metal plate 110, the electrical connector 400 may be electrically connected to the first electrical connection area 111, the electrical connector 400 may also be electrically connected to the second electrical connection area 211, and the electrical connector 400 may also be electrically connected to both the first electrical connection area 111 and the second electrical connection area 211 simultaneously.

[0063] For example, one end of the electrical connector 400, such as one end of the first electrical connection portion 410, can be electrically connected to the first electrical connection region 111, and the other end of the electrical connector 400, such as one end of the second electrical connection portion 420, can be electrically connected to the second electrical connection region 211. Thus, the electrical connector 400 can achieve electrical connection with the first metal plate 110 in the first electrical connection region 111 and electrical connection with the second metal plate 210 in the second electrical connection region 211.

[0064] It is understandable that the first electrical connection region 111 can be the region of high electric field strength (i.e., zero current region) on the first metal plate 110, generated by the first resonance formed by the excitation signal exciting the resonant cavity 101. Similarly, the second electrical connection region 211 can also be the region of high electric field strength on the second metal plate 210, generated by the first resonance formed by the excitation signal exciting the resonant cavity 101. Figure 11 It can be seen that the first resonance will cause multiple reverse excitations in the resonant cavity 101, so that the first electric field can form multiple electric field strength point regions on the first metal plate 110 and the second metal plate 210. The first electric connection region 111 and the second electric connection region 211 can select any electric field strength point region.

[0065] Of course, at least one of the first electrical connection region 111 and the second electrical connection region 211 may not be the region of strong electric field on the first metal plate 110 and the second metal plate 210. The specific locations of the first electrical connection region 111 and the second electrical connection region 211 are not limited in the embodiments of this application.

[0066] The electrical connector 400 of this application embodiment is electrically connected to the first metal plate 110 and the second metal plate 210 respectively in the first electrical connection region 111 and the second electrical connection region 211. When the first electrical connection region 111 and the second electrical connection region 211 are the electric field strength points of the first electric field, the electrical connector 400 is more likely to disrupt the resonance boundary conditions for the resonant cavity 101 to form the first resonance. The electrical connector 400 can make the frequency point of the second resonance formed by the resonant cavity 101 further away from the frequency point of the first resonance. Thus, the electrical connector 400 can both disrupt the influence of the first resonance on the radiation performance of the antenna element 300 and avoid the influence of the second resonance generated by the resonant cavity 101 on the radiation performance of the antenna element 300. The antenna element 300 of this application embodiment has better radiation performance.

[0067] Please refer to this again. Figure 3 and Figure 4The first metal plate 110 may include a first edge 112, and the second metal plate 210 may include a second edge 212. When at least a portion of the second metal plate 210 overlaps with the first metal plate 110, one end of the electrical connector 400 may be electrically connected to the first edge 112, one end of the electrical connector 400 may also be electrically connected to the second edge 212, and both ends of the electrical connector 400 may be electrically connected to the first edge 112 and the second edge 212, respectively.

[0068] It is understood that the first edge 112 and the second edge 212 can be the edges of the opening of the resonant cavity 101. For example, the first edge 112 and the second edge 212 can be the edges of the first metal plate 110 and the second metal plate 210 that are not connected to the rotating shaft 500. Figures 11 to 13 As shown, when at least part of the second metal plate 210 overlaps with the first metal plate 110, the electric field strength of the first electric field formed by the excitation signal in the resonant cavity 101 is greater at the opening edge of the resonant cavity 101. At this time, the electrical connector 400 is electrically connected to the first edge 112 and the second edge 212, and the electrical connector 400 is more likely to destroy the resonant boundary conditions for the resonant cavity 101 to form the first resonance.

[0069] When the antenna element 300 (e.g., radiating stub 320) is disposed on the first body 100 along the first direction H1, the first edge 112 and the second edge 212 can be disposed along the first direction H1. The first edge 112 and the second edge 212 can be edges parallel to the antenna element 300. It is understood that the first direction H1 can be the length direction of the electronic device 10, and the electronic device 10 can also include a second direction H2 in the width direction and a third direction H3 in the thickness direction.

[0070] When at least part of the second metal plate 210 overlaps with the first metal plate 110, the first edge 112 and the second edge 212 can be stacked. The electric field strength of the first electric field is greater between the first edge 112 and the second edge 212. When the electrical connector 400 is electrically connected to the first edge 112 and the second edge 212, the electrical connector 400 is more likely to disrupt the resonant boundary conditions for the resonant cavity 101 to form the first resonance.

[0071] Furthermore, considering that the electric field strength of the first electric field is greatest in the central region of the first edge 112 and the central region of the second edge 212, the electrical connector 400 can be electrically connected to the central region of the first edge 112 and the central region of the second edge 212 respectively, so as to make it easier for the electrical connector 400 to disrupt the resonant cavity 101 to form the first resonance.

[0072] It is understood that the first electrical connection region 111 in the aforementioned embodiments can be a region on the first edge 112, and the second electrical connection region 211 in the aforementioned embodiments can be a region on the second edge 212. In this case, the first electrical connection region 111 and the second electrical connection region 211 can be either regions with a large electric field strength in the first electric field or regions with a strong electric field point in the first electric field. The electrical connector 400 is more likely to disrupt the influence of the first resonance on the radiation performance of the antenna element 300.

[0073] Please refer to this again. Figure 3 and Figure 4 The first body 100 may also include a first metal frame 120.

[0074] A first gap 121 may be provided on the first metal frame 120. The first gap 121 allows the first metal frame 120 to form a first metal branch 130. The antenna unit 300 may include the first metal branch 130. The first metal branch 130 can radiate signals as a radiating branch 320 of the antenna unit 300.

[0075] It is understood that a first gap 122 may exist between the first metal frame 120 and the first metal plate 110, and this first gap 122 may communicate with the first slit 121. The electronic device 10 may also fill the space between the first slit 121 and the first gap 122 with a non-conductive material to increase the structural strength of the first metal frame 120 and the first metal plate 110.

[0076] In the electronic device 10 of this application embodiment, the first metal frame 120 forms a radiating branch 320 of the antenna unit 300 through a slit. The radiating branch 320 does not need to occupy additional space in the electronic device 10, and the electronic device 10 can achieve a miniaturized design.

[0077] When the first metal plate 110 is grounded as a grounding plane, the antenna unit 300 may also include a grounding terminal, and the first metal branch 130 can be grounded by being electrically connected to the first metal plate 110 through the grounding terminal.

[0078] like Figure 3 As shown, at least a portion of the electrical connector 400 can be electrically connected to the first metal plate 110, and at least a portion of the electrical connector 400 can also be electrically connected to the antenna element 300, such as the first metal branch 130. At least a portion of the electrical connector 400 can serve as the grounding terminal of the antenna element 300, so that the antenna element 300 can be grounded through the electrical connector 400 and the first metal plate 110.

[0079] It is understandable that when the electrical connector 400 includes a first electrical connection portion 410 and a second electrical connection portion 420, the first electrical connection portion 410 can serve as the grounding terminal of the antenna unit 300 and be electrically connected to the first metal plate 110 to achieve grounding of the antenna unit 300.

[0080] In the electronic device 10 of this application embodiment, when the first metal plate 110 is a ground plane, the electrical connector 400 can be used as the ground terminal of the antenna unit 300, or it can disrupt the shape of the resonant cavity 101, thereby enabling the electrical connector 400 to be reused and making the structure of the electronic device 10 simpler.

[0081] Please refer to the following: Figure 18 and Figure 19 , Figure 18 This is a fifth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. Figure 19 for Figure 18 The diagram shows the electronic device 10 in another configuration. The electronic device 10 may also include a parasitic branch 600, which may be disposed on the second body.

[0082] When the first body 100 and the second body 200 fold or slide towards each other, such that at least a portion of the second body 200 overlaps with the first body 100, the parasitic branch 600 can overlap with the radiating branch 320 of the antenna element 300. The parasitic branch 600 can electromagnetically couple with the radiating branch 320 of the antenna element 300, and the parasitic branch 600 and the radiating branch 320 of the antenna element 300 can jointly generate a resonance. This resonance is distinct from the resonance generated independently by the radiating branch 320 of the antenna element 300 under the action of an excitation signal. When the radiating branch 320 of the antenna element 300 resonates independently under the action of an excitation signal, the antenna element 300 can support signals in the first frequency band; when the parasitic branch 600 and the radiating branch 320 of the antenna element 300 jointly resonate, they can jointly support wireless signals in the second frequency band.

[0083] It is understood that the second body 200 may be provided with a second metal frame 220, and the second metal frame 220 may be provided with a second gap 222, which allows the second metal frame 220 to be spaced apart from the second metal plate 210. Furthermore, the second metal frame 220 may be provided with a second slit 221, which may communicate with the second gap 222, allowing the second metal frame 220 to form a second metal branch 230. The parasitic branch 600 may include this second metal branch 230, such that when at least a portion of the second body 200 and the first body 100 overlap, the second metal branch 230 can be electromagnetically coupled to the first metal branch 130.

[0084] Understandably, the electrical length of the parasitic stub 600 can be greater than one-quarter of the wavelength corresponding to the first frequency band. In this case, the center frequency of the second frequency band can be lower than the center frequency of the first frequency band. As an auxiliary stub to the radiating stub 320 of the antenna element 300, the resonance formed by the parasitic stub 600 and the radiating stub 320 of the antenna element 300 can improve the radiation performance of the resonance formed by the radiating stub 320 of the antenna element 300 alone.

[0085] Understandably, the first frequency band can correspond to a frequency range. For example, the first frequency band could be the GSM900 band, with a corresponding frequency range of 890MHz to 960MHz and a center frequency of 900MHz. In this case, the electrical length of the parasitic stub 600 being greater than one-quarter of the wavelength corresponding to the first frequency band can mean that the electrical length of the parasitic stub 600 is greater than one-quarter of the wavelength corresponding to the center frequency (e.g., 900MHz) of the first frequency band (e.g., the GSM900 band); or it can mean that the electrical length of the parasitic stub 600 is greater than one-quarter of the wavelength corresponding to the lowest frequency (e.g., 890MHz) in the first frequency band (e.g., the GSM900 band).

[0086] It is understandable that electrical length can refer to effective electrical length. Generally speaking, due to the influence of the shape of the parasitic branch 600 and the capacitors, resistors, inductors, and other devices connected to it, the electrical length or effective electrical length of the parasitic branch 600 often differs from its actual physical length. For example, as... Figure 18 As shown, when the parasitic stub 600 is not equipped with a tuning circuit or matching circuit to change its effective electrical length, the electrical length of the parasitic stub 600 can be equal to the physical length between its two ends. When the parasitic stub 600 is equipped with a tuning circuit or matching circuit to change its effective electrical length, the electrical length of the parasitic stub 600 can be greater than or less than the physical length between its two ends. In actual debugging, the shape of the parasitic stub 600 and the capacitors, inductors, resistors, and other components in the electrical connections can be adjusted to make the electrical length of the parasitic stub 600 greater than one-quarter of the wavelength corresponding to the first frequency band. The specific debugging method will not be elaborated here.

[0087] In the electronic device 10 of this application embodiment, the electrical length of the parasitic branch 600 is greater than one-quarter of the wavelength corresponding to the first frequency band. When the first body 100 and the second body 200 are folded or slid relative to each other so that at least part of the second body 200 overlaps with the first body 100, the radiating branch 320 of the antenna element 300 can be electromagnetically coupled with the parasitic branch 600. At this time, the center frequency of the second frequency band jointly supported by the parasitic branch 600 and the radiating branch 320 of the antenna element 300 can be lower than the center frequency of the first frequency band supported by the radiating branch 320 of the antenna element 300. The parasitic branch 600 can improve the system efficiency of the antenna system in the folded state of the electronic device 10, thereby making the radiation performance of the electronic device 10 better.

[0088] Please refer to the following: Figure 20 , Figure 20 This is a sixth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The electronic device 10 may also include a flexible display screen 700, a circuit board 800, and a power supply 900.

[0089] The flexible display screen 700 can form the display surface of the electronic device 10 for displaying images, text, and other information. The flexible display screen 700 can include displays of the type such as a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED). The flexible display screen 700 can be connected to the first body 100 and the second body 200, and can be folded along with the folding of the first body 100 and the second body 200.

[0090] For example, the first end of the flexible display screen 700 can be connected to the first body 100, and the second end of the flexible display screen 700 can be connected to the second body 200. When the first body 100 and the second body 200 are in an unfolded state, the first and second ends of the flexible display screen 700 can be on the same plane as the first body 100 and the second body 200 are unfolded, and the flexible display screen 700 is in an unfolded state. When the first body 100 and the second body 200 are in an overlapping state, the flexible display screen 700 can be folded along with the first body 100 and the second body 200, so that the first and second ends of the flexible display screen 700 can be close to each other or completely close to each other and folded together. It can be understood that in Figure 7 and Figure 8 In the illustrated embodiment, the electronic device 10 may have a display screen mounted on one of the first body 100 and the second body 200. This display screen may be a flexible screen or a non-flexible screen. In this embodiment, the display screen's shape does not change with the sliding of the first body 100 and the second body 200.

[0091] The circuit board 800 can be mounted on either the first body 100 or the second body 200, and can serve as the motherboard of the electronic device 10. The circuit board 800 can integrate a processor, and may also integrate one or more functional components such as a headphone jack, an accelerometer, a gyroscope, and a motor. The flexible display screen 700, the feed source 310, and the matching circuit can be located on the circuit board 800 for control by the processor on the circuit board 800.

[0092] The power supply 900 can be installed on either the first body 100 or the second body 200. Simultaneously, the power supply 900 can be electrically connected to the circuit board 800 to power the electronic device 10. The circuit board 800 may have a power supply management circuit. The power supply management circuit is used to distribute the voltage provided by the power supply 900 to the various electronic components in the electronic device 10.

[0093] It is understood that the above are merely exemplary examples of the electronic device 10. The electronic device 10 in this application embodiment may also include components such as a camera, a sensor, and a sound-to-electric conversion device. These components can be found in the descriptions in related technologies and will not be repeated here.

[0094] It should be understood that in the description of this application, terms such as "first" and "second" are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0095] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electronic device, characterized in that, include: A first body includes a first metal plate, the first metal plate including a first edge; An antenna element is disposed on the first body, and the antenna element is used to transmit excitation signals; The second body includes a second metal plate, the second metal plate including a second edge, the second body being foldable or slidable relative to the first body to make at least a portion of the second metal plate overlap with the first metal plate and to make the second metal plate and the first metal plate form a resonant cavity, the excitation signal being used to excite the resonant cavity to form a first resonance; and An electrical connector includes a first electrical connection portion disposed on the first body and electrically connected to the first metal plate, and a second electrical connection portion disposed on the second body and electrically connected to the second metal plate. When the first metal plate and the second metal plate are unfolded, the first electrical connection portion and the second electrical connection portion are separated from each other. When at least a portion of the second metal plate overlaps with the first metal plate, the first electrical connection portion and the second electrical connection portion are electrically connected, such that the electrical connector is electrically connected to the first metal plate and the second metal plate respectively, thereby changing the shape of the resonant cavity and causing the excitation signal to excite the resonant cavity to form a second resonance different from the first resonance. Wherein, when at least a portion of the second metal plate overlaps with the first metal plate, the electrical connector is electrically connected to the first edge, and / or, the electrical connector is electrically connected to the second edge; the first edge and the second edge are the opening edges of the resonant cavity.

2. The electronic device according to claim 1, characterized in that, A groove is formed on the second electrical connection portion, and when at least a portion of the second metal plate overlaps with the first metal plate, the first electrical connection portion is confined within the groove.

3. The electronic device according to claim 1, characterized in that, The first metal plate is provided with a first electrical connection area, and the second metal plate is provided with a second electrical connection area. The first electrical connection area and the second electrical connection area are the strong point areas of the electric field generated by the first resonance. When at least a portion of the second metal plate overlaps with the first metal plate, the electrical connector is electrically connected to the first electrical connection area, and / or the electrical connector is electrically connected to the second electrical connection area.

4. The electronic device according to claim 1, characterized in that, The antenna element is disposed on the first body along a first direction, and the first edge and the second edge are disposed along the first direction.

5. The electronic device according to claim 4, characterized in that, The electrical connectors are respectively electrically connected to the central regions of the first edge and the second edge.

6. The electronic device according to any one of claims 1 to 5, characterized in that, When at least a portion of the second metal plate overlaps with the first metal plate, the electrical connector is disposed within the resonant cavity, or the electrical connector is disposed outside the resonant cavity.

7. The electronic device according to any one of claims 1 to 5, characterized in that, The first body also includes a metal frame with slots to form metal branches, and the antenna unit includes the metal branches.

8. The electronic device according to any one of claims 1 to 5, characterized in that, The first metal plate is grounded, and at least a portion of the electrical connectors are electrically connected to the antenna unit and the first metal plate, respectively, so that the antenna unit is grounded through the electrical connectors and the first metal plate.

Images