WO2023216600A1

WO2023216600A1 - Electronic device

Info

Publication number: WO2023216600A1
Application number: PCT/CN2022/140835
Authority: WO
Inventors: 王泽东
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-05-09
Filing date: 2022-12-21
Publication date: 2023-11-16
Also published as: CN114845497A

Abstract

An electronic device, comprising a first body, a second body, and a main radiation stub. The first body comprises a first bezel, and a parasitic stub is arranged on the first bezel; the second body is capable of moving relative to the first body, and at least part of the second body being capable of being accommodated in an accommodating space of the first body; the main radiation stub is arranged on the second body; when at least part of the second body is accommodated in the accommodating space, at least part of the main radiation stub is covered by the parasitic stub and is electromagnetically coupled with the parasitic stub.

Description

Electronic equipment

This application claims priority to the Chinese patent application filed with the China Patent Office on May 9, 2022, with the application number 202210503232.3 and the invention name "Electronic Equipment", the entire content of which is incorporated into this application by reference.

Technical field

The present application relates to the field of communication technology, and in particular to an electronic device.

Background technique

With the development of communication technology, electronic devices such as smart phones can realize pull-out and sliding operations, so that the electronic devices can have unfolded and contained forms. Electronic devices may include antennas to enable wireless communication functions.

Contents of the invention

This application provides an electronic device that can ensure the radiation performance of the electronic device in a containment state.

This application provides an electronic device, including:

A first body, a receiving space is formed on the first body, and the first body includes a first frame;

Parasitic branches are arranged on the first border;

a second body, the second body can move relative to the first body, so that at least part of the second body can be received in the receiving space; and

The main radiating branches are arranged on the second body. When at least part of the second body is received in the receiving space, at least part of the main radiating branches are covered by the parasitic branches and are electromagnetically coupled with the parasitic branches, so The main radiating branch is used to radiate signals together with the parasitic branch.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

FIG. 1 is a first structural schematic diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is a schematic structural diagram from another direction of the electronic device shown in FIG. 1 .

FIG. 3 is a schematic structural diagram of the electronic device shown in FIG. 1 in another form.

FIG. 4 is a schematic structural diagram from another direction of the electronic device shown in FIG. 3 .

FIG. 5 is a schematic structural diagram of the electronic device shown in FIG. 1 without providing parasitic branches.

FIG. 6 is a schematic structural diagram of the electronic device shown in FIG. 5 in another form.

FIG. 7 is a graph of the reflection coefficient of the electronic device shown in FIGS. 5 and 6 in a stored state and an unfolded state.

FIG. 8 is a radiation performance curve diagram of the electronic device described in FIGS. 5 and 6 in a stored state and an unfolded state.

FIG. 9 is a reflection coefficient curve diagram of the electronic device shown in FIG. 1 in a contained state.

FIG. 10 is a radiation performance curve of the electronic device shown in FIG. 1 in a contained state.

FIG. 11 is a schematic diagram of an exploded structure of the electronic device shown in FIG. 1 .

Figure 12 is a second structural schematic diagram of an electronic device provided by an embodiment of the present application.

FIG. 13 is a schematic structural diagram of the electronic device shown in FIG. 12 in another form.

Figure 14 is a third structural schematic diagram of an electronic device provided by an embodiment of the present application.

Figure 15 is a fourth structural schematic diagram of an electronic device provided by an embodiment of the present application.

Figure 16 is a fifth structural schematic diagram of an electronic device provided by an embodiment of the present application.

FIG. 17 is a schematic diagram of current distribution of the electronic device shown in FIG. 16 .

FIG. 18 is a graph of the reflection coefficient of the electronic device when the parasitic branch length of the electronic device according to the embodiment of the present application is greater than one quarter of the corresponding wavelength of the first frequency band.

FIG. 19 is a radiation performance curve of the electronic device when the parasitic branch length of the electronic device is greater than a quarter of the corresponding wavelength of the first frequency band according to the embodiment of the present application.

Figure 20 is a sixth structural schematic diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solution in the embodiment of the present application will be clearly and completely described below with reference to Figures 1 to 20 in the embodiment of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of this application.

This embodiment of the present application provides an electronic device 10. The electronic device 10 may be a smartphone, a tablet, or other devices, or may be a game device, an augmented reality (Augmented Reality, AR) device, a car device, a data storage device, an audio playback device, a video playback device, a notebook computer, or a desktop computing device. Equipment etc. Please refer to Figures 1 to 4. Figure 1 is a first structural schematic diagram of the electronic device 10 provided by the embodiment of the present application. Figure 2 is a structural schematic diagram of the electronic device 10 shown in Figure 1 from another direction. Figure 3 is FIG. 1 is a schematic structural diagram of the electronic device 10 in another form. FIG. 4 is a schematic structural diagram of the electronic device 10 shown in FIG. 3 in another direction. The electronic device 10 includes a first body 100 , a second body 200 , a main radiating branch 310 , a parasitic branch 320 and a feed source 330 .

A receiving space 101 can be formed on the first body 100 , and the first body 100 and the second body 200 can move toward each other, so that at least part of the second body 200 can be received in the receiving space 101 of the first body 100 . The first body 100 may include a first frame 110 , which may be a top frame or a bottom frame of the first body 100 , and the parasitic branch 320 may be disposed on the first frame 110 . The main radiating branches 310 may be disposed on the second body 200. For example, the second body 200 may include a surface 210 opposite to the first frame 110. The main radiating branches 310 may be formed or connected to the surface 210, and the feed 330 may be directly or indirectly. Electrically connected to the main radiating branch 310, the feed source 330 can provide an excitation signal to stimulate the main radiating branch 310 to form resonance. When the first body 100 and the second body 200 are pulled and slid toward each other so that at least part of the second body 200 is received in the receiving space 101 of the first body 100, the second body 200 may be located in the first part of the first body 100. On the side of the frame 110 away from the free space, the second body 200 can be located inside the first frame 110. At this time, at least part of the main radiating branches 310 can be covered by the parasitic branches 320 provided on the first frame 110. The main radiating branches 310 and There may be a gap between the parasitic branches 320. The main radiating branch 310 may be electromagnetically coupled with the parasitic branch 320. The main radiating branch 310 may radiate signals together with the parasitic branch 320. The main radiating branch 310 may radiate signals to free space through the parasitic branch 320.

The first body 100 and the second body 200 can provide support for the electronic devices in the electronic device 10 to install the electronic devices in the electronic device 10 together. For example, electronic components such as a camera, a receiver, a circuit board 700 equipped with radio frequency circuits such as the feed 330, and a power supply 800 in the electronic device 10 can be installed on the first body 100 and the second body 200 for fixation. The first body 100 may be a hollow frame structure, so that the first body 100 may form the receiving space 101. For example, but not limited to, the first body 100 may be a drawer-like structure, and the first frame 110 may be the third part of the frame structure. The top frame or the bottom frame of a body 100 . The second body 200 can be a thin plate or sheet-like structure, and the main radiating branches 310 can be formed on or connected to the top or bottom surface (ie, surface 210) of the thin plate structure; the second body 200 can also be a hollow frame structure. At this time, the main radiating branches 310 may be formed on or connected to the surface 210 of the top frame or the bottom frame of the second body 200 of the frame structure. The size of the second body 200 may be slightly smaller than the size of the first body 100 so that the second body 200 can be received in the receiving space 101 of the first body 100 . It can be understood that the first body 100 and the second body 200 may be provided with, but are not limited to, pull-out or sliding structures such as slide rails and slideways, so that the first body 100 and the second body 200 can slide. , pull and other operations to realize the relative movement of the first body 100 and the second body 200 . For these pull-out or sliding structures, please refer to the description of the relevant technology, and will not be described in detail here.

During the pulling and sliding operations, the first body 100 and the second body 200 can switch between the receiving state and the unfolding state. For example, as shown in Figures 3 and 4, the first body 100 and the second body 200 can be pulled or slid away from each other to form an unfolded state; as shown in Figures 1 and 2, the first body 100 and the second body 200 They can also be pulled or slid close to each other to form a containment state.

It can be understood that the unfolded state may refer to a state in which the second body 200 and the first body 100 are separated from each other without contact; the receiving state may refer to at least part of the second body 200 being received in the receiving space 101 of the first body 100 internal state. When the second body 200 is completely received in the receiving space 101, the first body 100 and the second body 200 can be in a fully received state; when part of the second body 200 is received in the receiving space 101, the first body 100 and the second body 200 Can be in semi-containment state.

It can be understood that the pulling and sliding operations of the first body 100 and the second body 200 may be the simultaneous movement of the first body 100 and the second body 200 to achieve switching between the unfolded state and the contained state, or the first body 100 and the second body 200 may be moved simultaneously. One of the main body 100 and the second body 200 moves while the other does not move to achieve switching between the unfolded state and the contained state. Based on the relativity of movement, the above movement situations can be described in the "second body 200 can be relative to the first" in this application. Within the scope of protection of the "100 Movement" feature of the body. The embodiments of the present application do not limit this.

Among them, the main radiating branches 310 and the parasitic branches 320 can be made of conductor materials and can radiate wireless signals. For example, the main radiating branches 310 and the parasitic branches 320 can, but are not limited to, support Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signal, third-generation mobile communication technology (3rd-Generation, 3G for short), fourth-generation mobile communication technology (4th-Generation, 4G for short), fifth-generation mobile communication technology ( 5th-Generation, referred to as 5G), etc. The embodiments of the present application do not limit this.

It can be understood that the parasitic branches 320 can be disposed on the first frame 110, and the parasitic branches 320 can be directly or indirectly connected to a certain surface of the first frame 110, or can be formed through, but not limited to, etching, laser engraving, slits, etc. formed on the first frame 110 . Similarly, the main radiating branches 310 are provided on the second body 200. The main radiating branches 310 can be directly or indirectly connected to a certain side of the second body 200, or can be formed on the second body 200 by, but not limited to, etching, laser engraving, slits, etc. Second ontology 200. The embodiment of the present application does not specifically limit the formation and connection methods of the parasitic branches 320 and the main radiation branches 310 .

As shown in FIGS. 1 and 2 , when the first body 100 and the second body 200 are close to each other and in a contained state and the parasitic branch 320 is electromagnetically coupled with the main radiating branch 310 , the main radiating branch 310 can generate the first resonance and support the second resonance. For wireless signals in a frequency band, the parasitic stub 320 can generate a second resonance and support the wireless signal of the second frequency band. The second frequency band can at least partially overlap with the first frequency band. The parasitic stub 320 can serve as an auxiliary radiating branch of the main radiating branch 310. Together with the main radiating branch 310, the main radiating branch 310 can radiate signals to free space through the parasitic branch 320. The parasitic branch 320 can improve the radiation performance of the main radiating branch 310.

As shown in Figures 3 and 4, when the first body 100 and the second body 200 are in the unfolded state and are far away from each other, the main radiating branch 310 and the parasitic branch 320 are far away from each other and do not overlap, and no electromagnetic coupling is generated between them. At this time The main radiating branch 310 can independently generate a resonance, such as a third resonance, under the excitation of the excitation signal provided by the feed source 330, and the third resonance can support the wireless signal of the first frequency band. It can be understood that, as shown in FIG. 4 , the electronic device 10 may further include a first matching circuit 340 , which may be connected in series between the feed source 330 and the main radiating branch 310 , and the first matching circuit 340 may The impedance of the feed source 330 when transmitting the excitation signal is matched so that the main radiating branch 310 can radiate the signal. For example, the main radiating branch 310 can form a third resonance and support the first wireless signal in the first frequency band.

Please refer to FIGS. 1 and 2 again. When the first body 100 and the second body 200 are close to each other and in the receiving state, at least part of the second body 200 can be received in the receiving space 101 of the first body 100. The first frame 110 may be located outside the second body 200 , and the first frame 110 may partially or completely cover the second body 200 . If the parasitic branches 320 are not provided on the first frame 110, the first frame 110 will affect the electromagnetic wave radiation of the main radiation branches 310 provided on the second body 200. Especially when the first frame 110 is made of a conductive material such as metal, the main The radiation performance of the radiation branch 310 is seriously degraded. In the embodiment of the present application, the parasitic branch 320 is disposed on the first frame 110. The parasitic branch 320 can be located outside the electronic device 10 and contact the free space. In the contained state, the parasitic branch 320 can be electromagnetically coupled with the main radiating branch 310. The main radiating branch The radiation energy of the first resonance formed by 310 can be radiated to free space through the parasitic branches 320 arranged outside the electronic device 10. The parasitic branches 320 can improve the radiation performance of the main radiation branch 310.

For example, please refer to FIGS. 5 to 8 . FIG. 5 is a schematic structural diagram of the electronic device 10 shown in FIG. 1 without the parasitic branch 320 . FIG. 6 shows the electronic device 10 shown in FIG. 5 in another form. A structural schematic diagram. Figure 7 is a reflection coefficient curve diagram of the electronic device 10 shown in Figures 5 and 6 in the stored state and the unfolded state. Figure 8 is a diagram of the electronic device 10 shown in Figures 5 and 6 in the stored state. and radiation performance curves in the unfolded state.

As shown in FIGS. 5 and 6 , when the parasitic branches 320 are not provided on the first frame 110 and the first body 100 and the second body 200 are in the receiving state, the first frame 110 will block at least part of the second body 200 and at least part of the second body 200 . The main radiating branch 310 and the first frame 110 can block the transmission of radiation energy of the main radiating branch 310, causing the radiation performance of the main radiating branch 310 to decrease. As shown in Figures 7 and 8, curves S1 and S2 in Figure 7 are reflection coefficient curves when the electronic device 10 shown in Figures 6 and 5 is in the unfolded state and the contained state respectively. Curves S3 and S4 in Figure 8 They are respectively the radiation efficiency curve and the system efficiency curve when the electronic device 10 shown in FIG. 6 is in the unfolded state. Curves S5 and S6 are respectively the radiation efficiency curve and the system efficiency curve when the electronic device 10 shown in FIG. 5 is in the contained state. It can be seen from the curves S1 to S6 that when the first body 100 and the second body 200 are far away from each other and in the unfolded state, the first frame 110 will not block the second body 200 and the main radiating branch 310 can generate the third resonance and radiate the first wireless signal, the radiation performance of the main radiation branch 310 is better. When the first body 100 and the second body 200 are close to each other and in the receiving state, the first frame 110 will block at least part of the second body 200 and the main radiating branch 310 , and the third resonance frequency point of the main radiating branch 310 will be higher. The frequency offset causes the matching performance of the feed source 330, the first matching circuit 340 and the main radiation branch 310 to become worse. Moreover, the radiation efficiency in the contained state is obviously worse than the radiation efficiency in the unfolded state. The difference between the two is about 4.2dB. , from the deployed state to the contained state, the average system efficiency deteriorates from -4.8dB to -12.6dB, and the performance of the main radiating branch 310 deteriorates.

In contrast, please combine Figures 1 and 2 and refer to Figures 9 and 10. Figure 9 is a reflection coefficient curve diagram of the electronic device 10 shown in Figure 1 in the contained state, and Figure 10 is a graph of the reflection coefficient of the electronic device 10 shown in Figure 1. Radiation performance curve of the electronic device 10 in a contained state. As shown in Figures 9 and 10, the curve S7 in Figure 9 is the reflection coefficient curve when the electronic device 10 shown in Figure 1 is provided with the parasitic branch 320 on the first frame 110 and the electronic device 10 is in a contained state. In Figure 10 Curves S8 and S9 are respectively the radiation efficiency curve and the system efficiency curve when the electronic device 10 shown in FIG. 1 is provided with the parasitic branch 320 on the first frame 110 and the electronic device 10 is in a contained state. It can be seen from curve S7 to curve S9 that when the parasitic branch 320 is provided on the first frame 110, the first body 100 and the second body 200 are in a contained state, and the main radiating branch 310 can be electromagnetically coupled with the parasitic branch 320 and radiate signals together. The radiating branches 310 can radiate energy outward through the parasitic branches 320 . At this time, compared with the resonance point of the third resonance in the expanded state, there is basically no frequency offset between the resonance point of the first resonance generated by the main radiating branch 310 and the reflection coefficient value of the main radiating branch 310 in the expanded state and the contained state. There is basically no change; the average system efficiency of the electronic device 10 in the contained state is about -4.5dB, which is not much different from the average system efficiency of -4.8dB in the deployed state. It can be seen that the electronic device 10 in the embodiment of the present application, by arranging the parasitic branch 320 on the first frame 110, can improve the radiation performance when the main radiation branch 310 is in the containment state, and can avoid the radiation caused by the change of the state of the electronic device 10. The performance of the main radiating branch 310 deteriorates.

Among them, it can be seen from Figure 9 that when the first body 100 and the second body 200 are in the accommodation state, the main radiating branch 310 and the parasitic branch 320 are electromagnetic coupled, and the main radiating branch 310 can generate a resonance, such as the first resonance, and the parasitic branch 320 may separately generate another resonance such as a second resonance, and the first frequency band supported by the first resonance may at least partially overlap with the second frequency band supported by the second resonance. For example, as shown in Figure 9, both the main radiating branch 310 and the parasitic branch 320 can support wireless signals in the frequency range of 1.15GHz to 1.3GHz, where the first resonance frequency point formed by the main radiating branch 310 can be between 1.15GHz and 1.15GHz. Between 1.2GHz and 1.2GHz, the frequency point of the second resonance formed by the parasitic branch 320 can be between 1.25GHz and 1.3GHz. The main radiating branch 310 can mainly support wireless signals in the 1.15GHz-1.2GHz frequency band and secondarily support 1.25GHz. -Wireless signals in the 1.3GHz frequency band, the parasitic branch 320 can mainly support wireless signals in the 1.25GHz-1.3GHz frequency band and secondarily support wireless signals in the 1.15GHz-1.2GHz frequency band. Therefore, when the electronic device 10 is in the contained state, the main radiating branch 310 and the parasitic branch 320 can be electromagnetically coupled to radiate signals together to ensure that the radiation performance of the main radiating branch 310 does not deteriorate. The electronic device 10 can also support wireless signals in more frequency bands. transmission. It should be noted that the embodiments of the present application do not limit the specific frequency ranges of the first frequency band and the second frequency band.

In the electronic device 10 of the embodiment of the present application, the first body 100 includes a first frame 110, and a parasitic branch 320 is provided on the first frame 110. The second body 200 can move relative to the first body 100, and at least part of the second body 200 can be accommodated. In the receiving space 101 of the first body 100 and the second body 200 can be located on the side of the first frame 110 away from the free space, at this time, the first frame 110 can be located outside the second body 200, and the main body on the second body 200 The radiating branches 310 can be electromagnetically coupled with the parasitic branches 320 on the first frame 110 and radiate signals together. The radiation energy formed by the resonance of the main radiating branches 310 can be radiated to the free space through the outer parasitic branches 320. The parasitic branches 320 can enhance the main radiating branches. The radiation performance when 310 is in the containment state can avoid the deterioration of the performance of the main radiation branch 310 caused by changes in the state of the electronic device 10. The electronic device 10 in the embodiment of the present application, the first body 100 and the second body 200 are in the unfolded state. state or containment state, the main radiation branch 310 has good radiation performance.

Please refer to Figure 1 and Figures 11 to 13. Figure 11 is a schematic diagram of an exploded structure of a sub-device provided by an embodiment of the present application. Figure 12 is a second structure of an electronic device 10 provided by an embodiment of the present application. Schematic diagram. FIG. 13 is a schematic structural diagram of the electronic device 10 shown in FIG. 12 in another form. The electronic device 10 in the embodiment of the present application may also include a rotating shaft 400 and a flexible screen assembly 500.

The flexible screen assembly 500 may form a display surface of the electronic device 10 for displaying information such as images, text, etc. The flexible screen assembly 500 can be connected to the first body 100 and the second body 200. For example, the first end of the flexible screen assembly 500 can be connected to the first body 100, and the second end of the flexible screen assembly 500 can go around the rotating shaft 400 and be connected to Second ontology 200. The first body 100 and the second body 200 can support the flexible screen assembly 500 . During mutual movement, the first body 100 and the second body 200 can drive the flexible screen assembly 500 to move together, or drive the flexible screen assembly 500 to move. The flexible screen assembly 500 can follow the relative movement of the first body 100 and the second body 200 By moving, the length of the flexible screen assembly 500 can be adjusted, and the size of the display area of the electronic device 10 can be changed.

For example, as shown in Figure 13, when the first body 100 and the second body 200 are far away from each other and in the unfolded state, the flexible screen assembly 500 can cause the first end and The second end is on the same plane, and the flexible screen assembly 500 can be entirely located on the first side of the electronic device 10 , and the first side can be the display side of the electronic device 10 .

For another example, as shown in FIG. 12 , when the first body 100 and the second body 200 are close to each other so that at least part of the second body 200 is accommodated in the accommodation space 101 of the first body 100 and the electronic device 10 is in the accommodation state, the flexible A part of the screen assembly 500 may be located on the first side of the electronic device 10, and another part of the flexible screen assembly 500 may extend around the rotating shaft 400 to a second side of the electronic device 10. The second side is opposite to the first side. The two sides are the non-display sides of the electronic device 10 .

It can be understood that the rotating shaft 400 can be provided on the first body 100 or the second body 200 . When the rotating shaft 400 is disposed on the first body 100, when the first body 100 and the second body 200 are in the received state, the flexible screen assembly 500 can bypass the rotating shaft 400 and extend to the second side of the first body 100, and the flexible screen assembly 500 can The second side of the first body 100 is covered, and the user cannot see the second side of the first body 100 at this time. When the first body 100 and the second body 200 are in the unfolded state, the flexible screen assembly 500 is all located on the first side, the second side of the first body 100 is exposed, and the user can see the second side of the first body 100.

It can be understood that in order to protect the flexible screen assembly 500, the electronic device 10 may also be provided with a shield (not shown), which may be spaced apart from the first body 100 to form a gap, and the flexible screen assembly 500 extends to the first body 100. The two sides may be located within the gap, and the shielding member is located outside the flexible screen assembly 500, so that the shielding member can protect the flexible screen assembly 500.

The electronic device 10 in the embodiment of the present application is provided with a flexible screen assembly 500. The size of the display area of the electronic device 10 can be adjusted, and the electronic device 10 can have a larger display area.

Please refer to FIGS. 11 to 13 again. The electronic device 10 in the embodiment of the present application may further include a metal cover 600 .

The metal cover 600 can be disposed on the first body 100, and the metal cover 600 can be directly or indirectly connected to the first body 100. For example, the metal cover 600 can be connected to the third portion of the first body 100 by snapping or gluing. surface on both sides. The metal cover 600 may form part of the appearance surface of the electronic device 10 .

It can be understood that the metal cover 600 in the embodiment of the present application can be closely attached to the first body 100 so that the flexible screen assembly 500 in the received state is located on the side of the metal cover 600 away from the first body 100. The flexible screen assembly 500 covers the metal cover 600. At this time, the electronic device 10 can protect the flexible screen assembly 500 through the shield. Of course, as shown in Figures 12 and 13, the metal cover 600 in the embodiment of the present application can also form a gap with the first body 100, and the flexible screen assembly 500 can switch between the accommodation state and the unfolded state within the gap. , the electronic device 10 may not be provided with a shielding member, and the metal cover 600 may protect the flexible screen assembly 500 .

It should be noted that the electronic device 10 may also be provided with another metal cover 600 that is directly or indirectly connected to the second body 200 , and the embodiments of the present application will not be described in detail here.

Based on the structure of the electronic device 10 described above, please refer to Figure 14. Figure 14 is a third structural schematic diagram of the electronic device 10 provided in an embodiment of the present application. The parasitic branches 320 in the embodiment of the present application may be metal formed by opening gaps. Branches. For example, the first slit 102 may be formed on the first frame 110, and the first slit 102 may form a first metal branch 111 with a free end on the first frame 110. The parasitic branch 320 in the embodiment of the present application may include the first metal branch 111. Metal twig 111.

It can be understood that the first gap 102 can penetrate the inner and outer sides of the first frame 110, that is, the first gap 102 can connect the free space and the receiving space 101. When the second body 200 is received in the receiving space 101, the main radiation branches The radiant energy generated by 310 can be radiated to free space through the gap.

It can be understood that the first slit 102 may be, but is not limited to, a U-shaped slit, a V-shaped slit, one or more straight slits, etc. Any gap solution that can form the first metal branches 111 on the first frame 110 can be within the protection scope of the embodiment of the present application, and the embodiment of the present application does not limit this.

It can be understood that, taking into account the integrity of the appearance, the first gap 102 can be filled with materials that have less impact on the radiation performance of the main radiation branches 310 and the parasitic branches 320, and the color of the material can be as consistent as possible with the first gap. The color of the border 110 is the same or similar.

In the electronic device 10 of the embodiment of the present application, a first gap 102 is opened on the first frame 110 and a parasitic branch 320 is formed on the first frame 110. On the one hand, the first frame 110 is multiplexed, which can reduce the space occupied by the parasitic branch 320. Space, on the other hand, the radiation energy generated by the main radiation branch 310 can also be radiated to the free space through the gap, and the radiation performance of the main radiation branch 310 is better.

Please refer to FIG. 14 again. The second gap 103 may be formed on the metal cover 600 of the electronic device 10 . When at least part of the second body 200 is received in the receiving space 101, at least part of the main radiating branches 310 is disposed opposite the second slit 103, and the projection of at least part of the second slit 103 on the second body 200 may be located on the main radiating branch 310.

It can be understood that the second gap 103 on the metal cover 600 may be a groove structure extending from the edge of the metal cover 600 to the main body of the metal cover 600; the second gap 103 may also be formed on the metal cover 600 through-hole structure (not connected with the edge of the metal cover 600). The second gap 103 can be opened at the connection between the metal cover 600 and the first frame 110 , and the second gap 103 can also be formed in a spaced area between the metal cover 600 and the first frame 110 . The embodiment of the present application does not limit the specific structure of the second gap 103.

It can be understood that, like the first gap 102 , the second gap 103 can also be filled with materials that have less impact on the radiation performance of the main radiating branches 310 and the parasitic branches 320 , and fillers of appropriate colors can be selected for filling.

It can be understood that the metal cover 600 can be directly or indirectly connected to the first frame 110. At this time, the first frame 110 can still maintain a connection relationship with other parts of the first body 100, and other parts of the first body 100, The first frame 110 and the metal cover 600 can be connected as a whole; of course, the first frame 110 can also be separated from other parts of the first body 100 and connected to the metal cover 600. In this case, the first frame 110 can be connected to the metal cover. The board 600 is connected as a whole, and other parts of the first body 100 are separated from the first frame 110 and the first body 100 .

It can be understood that the metal cover 600 can be arranged parallel to the display surface of the electronic device 10 , and the second slit 103 on the metal cover 600 can also be arranged parallel to the display surface. It can be understood that the first frame 110 can be arranged perpendicularly or approximately perpendicularly to the display surface, and the first gap 102 on the first frame 110 can also be arranged perpendicularly or approximately perpendicularly to the display surface. The metal cover 600 can be bent and connected to the first frame 110 . Of course, the angle between the metal cover 600 and the first frame 110 is not limited to 90 degrees, and can also be, but is not limited to, other degrees, which is not limited in the embodiments of the present application.

It can be understood that the metal cover 600 can be bent and connected to the first frame 110 through, but is not limited to, buckles, screws, adhesives, etc., or the metal cover 600 can also be bent and connected to the first frame 110 in one piece. , the two can be processed into one piece through CNC (Computerized Numerical Control, referred to as CNC) processing.

In the electronic device 10 of the embodiment of the present application, a second gap 103 is formed on the metal cover 600. When the electronic device 10 is in the accommodation state, part or all of the main radiation branches 310 can be arranged opposite the second gap 103. At this time, In addition to radiating outward through the parasitic branches 320 and the first gap 102, the electromagnetic energy of the main radiating branch 310 can also be radiated outward through the second gap 103. The metal cover 600 has little impact on the radiation performance of the main radiating branch 310. This further ensures that the main radiation branch 310 has excellent radiation performance.

Please refer to FIG. 15 , which is a fourth structural schematic diagram of the electronic device 10 provided by the embodiment of the present application. The parasitic branches 320 in the embodiment of the present application may be formed at the connection between the metal cover 600 and the first frame 110 .

The metal cover 600 can be directly or indirectly connected to the first frame 110 by bending. For example, the metal cover 600 can be integrally connected to the first frame 110 . A third gap 104 is formed at the connection between the metal cover 600 and the first frame 110. The third gap 104 can cause some areas of the first frame 110 not to be connected to the metal cover 600. This partial area can allow part of the first frame to 110 forms a second metal stub 112 that the parasitic stub 320 may include.

It can be understood that the third gap 104 can be disposed parallel to the display surface of the electronic device 10 . The third slit 104 may extend from the edge of the metal cover 600 toward the main body of the metal cover 600, so that the connection between the metal cover 600 and the first frame 110 may form a second metal branch 112 with a free end. It may be oriented away from the metal cover 600. At this time, the second metal branches 112 may form the parasitic branches 320 in the previous embodiment.

It can be understood that when at least part of the second body 200 is accommodated in the accommodation space 101 and the electronic device 10 is in the accommodation state, at least part of the main radiation branches 310 may be arranged opposite to the third gap 104 , and the third gap 104 is in the second body 200 The projection on may be partially or entirely located on the main radiation branch 310 , and the main radiation branch 310 may radiate signals outward through the third gap 104 .

It can be understood that the third gap 104 in the embodiment of the present application can be equivalent to the second gap 103 in the embodiment shown in FIG. 14 , both of which are beneficial to the electromagnetic energy radiation of the main radiation branch 310 . Considering that the third gap 104 in the embodiment of the present application can also form a parasitic branch 320, the third gap 104 can also be equivalent to the first gap 102 in the embodiment shown in FIG. 14. In other words, the third gap 104 in the embodiment of the present application may be equivalent to the first gap 102 and the second gap 103 in the previous embodiment.

It can be understood that, like the first gap 102 and the second gap 103, the embodiment of the present application can also fill the third gap 104 with materials that have less impact on the radiation performance of the main radiation branches 310 and the parasitic branches 320, and can choose Fill with appropriate color filler.

It can be understood that the metal cover 600 can be grounded, or in other words, the metal cover 600 can form a ground plane of the electronic device 10 . After the first frame 110 is connected to the metal cover 600 , the first frame 110 can also be grounded. Therefore, the grounded metal cover 600 can further reduce interference to the main radiating branches 310 and the parasitic branches 320 . It should be noted that the second body 200 can also be grounded or form a ground plane of the electronic device 10. After the main radiating branch 310 is connected to the second body 200, the main radiating branch 310 can also be grounded.

In the electronic device 10 of the embodiment of the present application, a third gap 104 is formed at the connection between the metal cover 600 and the first frame 110. The third gap 104 can not only form the parasitic branch 320, but also facilitate the energy radiation of the main radiation branch 310. The third gap 104 realizes multiplexing, and the third gap 104 does not easily affect the structural strength of the metal cover 600 and the first frame 110 .

Please refer to FIG. 16 , which is a fifth structural schematic diagram of the electronic device 10 provided by the embodiment of the present application. Both the parasitic branch 320 and the main radiating branch 310 in the embodiment of the present application may form an inverted F antenna (IFA).

The parasitic branch 320 may include a first free end 321 and a first ground end 322 arranged oppositely. The first free end 321 may be ungrounded, and the first ground end 322 may be directly or indirectly electrically connected to a ground plane to achieve grounding. For example, as shown in FIGS. 2 and 4 , the electronic device 10 may further include a second matching circuit 350 . One end of the second matching circuit 350 may be directly or indirectly electrically connected to the parasitic branch 320 , and the other end of the second matching circuit 350 may be electrically connected to the parasitic branch 320 . For grounding, for example, the other end of the second matching circuit 350 can be electrically connected to the metal cover 600 , so that the parasitic branch 320 can be grounded through the second matching circuit 350 .

The main radiating branch 310 may include a second free end 311 and a second ground end 312 arranged oppositely. The second free end 311 may be ungrounded, and the second ground end 312 may be directly or indirectly electrically connected to a ground plane to achieve grounding. For example, when the second body 200 is grounded, the second ground terminal 312 may be electrically connected to the second body 200 to achieve grounding.

When at least part of the second body 200 is received in the receiving space 101 so that the electronic device 10 is in the receiving state, the first free end 321 can be stacked up and down with at least part of the second free end 311 of the main radiating branch 310 , vertically to the electronic device 10 In the direction, at least part of the first free end 321 of the parasitic branch 320 may be located directly above or directly below the second free end 311 of the main radiating branch 310. The two are stacked, and the first free end 321 is on the second side. The projection on the body 200 or the main radiating branch 310 may cover at least part of the second free end 311 .

In the electronic device 10 of the embodiment of the present application, when the electronic device 10 is in a contained state and the main radiating branch 310 forms the first resonance and the parasitic branch 320 forms the second resonance, the current can flow from the ground terminals of the main radiating branch 310 and the parasitic branch 320 to The free end flows, and the current at the free end is larger. When the first free end 321 and the second free end 311 overlap with the movement of the first body 100 and the second body 200, the current on the second free end 311 is more easily coupled to the first free end 321, making it easier to excite. The parasitic stub 320 generates a second resonance.

Please refer to FIG. 16 and FIG. 17 . FIG. 17 is a schematic diagram of current distribution of the electronic device 10 shown in FIG. 16 . When at least part of the second body 200 is received in the receiving space 101 so that the electronic device 10 is in the receiving state, the first free end 321 may be oriented in the same direction as the second free end 311 .

As shown in FIG. 17 , the first current I1 flowing on the main radiating branch 310 can flow from the second ground terminal 312 to the second free terminal 311 , and the second current I2 flowing on the parasitic branch 320 can flow from the first ground terminal 312 to the second free terminal 311 . 322 flows to the first free end 321, so that the first current I1 and the second current I2 flow in the same direction. The direction of the magnetic field generated by the main radiation branch 310 can be in the same direction as the direction of the magnetic field generated by the parasitic branch 320. The two can be superimposed. The parasitic branch 320 can further improve the radiation performance of the antenna system formed by the main radiating branch 310 and the parasitic branch 320.

Among them, based on the action of the excitation signal provided by the feed source 330 of the main radiating branch 310 and the third resonance formed by the main radiating branch 310 in the unfolded state and the first resonance formed in the contained state, both the wireless signals of the first frequency band can be supported. The electrical length of the main radiation branch 310 may be equal to or approximately equal to one quarter of the wavelength corresponding to the first frequency band. For example, the electrical length of the main radiation branch 310 may be equal to or approximately equal to four quarters of the wavelength corresponding to the resonance point of the first resonance or the third resonance. one part. At this time, the input impedance on the main radiating branch 310 presents a pure resistance, which is more conducive to the main radiating branch 310 forming the first resonance.

It can be understood that the electrical length may refer to the effective electrical length. Generally speaking, due to the influence of the shape of the radiating branches and the capacitors, resistors, inductors and other devices electrically connected to the radiating branches, the electrical length or effective electrical length of the radiating branches is often different from the actual physical length of the radiating branches. For example, when there is no tuning circuit or matching circuit on the main radiating branch 310 and the parasitic branch 320 that can change the effective electrical length, the electrical length of the main radiating branch 310 and the parasitic branch 320 may be equal to the physical length between its two ends. When the main radiating branch 310 and the parasitic branch 320 are also provided with a tuning circuit and a matching circuit that can change the effective electrical length, at this time, the electrical length of the main radiating branch 310 and the parasitic branch 320 can be greater than or less than the physical length between their two ends. length. In actual debugging, the electrical length radiation requirements of the main radiating branches 310 and the parasitic branches 320 can be adjusted by adjusting the shapes of the main radiating branches 310 and the parasitic branches 320 and the electrically connected capacitors, inductors, resistors and other devices. The specific debugging method will not be described here.

When the electronic device 10 is in a contained state so that the parasitic branch 320 can be electromagnetically coupled with the main radiating branch 310 and support the wireless signal of the second frequency band, the electrical length of the parasitic branch 320 can be less than or equal to one-quarter of the corresponding wavelength of the first frequency band. First, for example, the electrical length of the parasitic branch 320 may be less than or equal to one quarter of the wavelength corresponding to the resonance point of the first resonance or the third resonance. At this time, when the parasitic branch 320 serves as an auxiliary branch, it is not easy for the main radiating branch 310 to form a slot antenna, and the system efficiency and radiation efficiency curve of the electronic device 10 are less likely to have pits, and the radiation performance of the electronic device 10 is better.

For example, please combine FIG. 9 and FIG. 10 and please refer to FIG. 18 and FIG. 19. FIG. 18 shows the electrons when the length of the parasitic branch 320 of the electronic device 10 according to the embodiment of the present application is greater than one quarter of the corresponding wavelength of the first frequency band. Reflection coefficient curve graph of the device 10. Figure 19 is a radiation performance graph of the electronic device 10 when the length of the parasitic branch 320 of the electronic device 10 according to the embodiment of the present application is greater than one quarter of the corresponding wavelength of the first frequency band. Curve S10 in Figure 18 is the reflection coefficient curve of the electronic device 10 when the length of the parasitic branch 320 is greater than one quarter of the corresponding wavelength of the first frequency band. Curves S11 and S12 respectively have the length of the parasitic branch 320 greater than one quarter of the corresponding wavelength of the first frequency band. Temporary radiation efficiency curve and system efficiency curve of the electronic device 10 . Comparing the curve S7 in Figure 9 and the curve S10 in Figure 18, it can be seen that when the length of the parasitic branch 320 is less than or equal to one quarter of the corresponding wavelength of the first frequency band, the first resonance formed by the main radiation branch 310 in the containment state The resonance point will basically not shift; and when the length of the parasitic branch 320 is greater than a quarter of the corresponding wavelength of the first frequency band, the resonance point of the first resonance formed by the main radiating branch 310 in the contained state will shift to low frequency. Moreover, comparing the curves S8 and S9 in Figure 10 and the curves S11 and S12 in Figure 19, it can be seen that when the length of the parasitic branch 320 is greater than a quarter of the corresponding wavelength of the first frequency band, the system of the electronic device 10 in the containment state There is an obvious efficiency depression in efficiency and radiation efficiency, which seriously affects the radiation performance of the electronic device 10; and when the length of the parasitic branch 320 is less than or equal to one quarter of the corresponding wavelength of the first frequency band, the system efficiency of the electronic device 10 in the containment state is There will be no efficiency pits in radiation efficiency, and the system efficiency and radiation efficiency performance are better.

It can be understood that the electrical length of the parasitic branch 320 can be adjusted to meet the radiation requirements by adjusting the shape of the parasitic branch 320 and electrically connected capacitors, inductors, resistors and other devices. For example, the electrical length of the parasitic branch 320 can be adjusted through the second matching circuit 350 that is electrically connected to the parasitic branch 320, so that the parasitic branch 320 can be electromagnetic coupled with the host radiating branch 310, and can also ensure that the parasitic branch 320 does not carry to the adverse effects of efficiency pits. The embodiment of the present application does not limit the specific debugging process of the second matching circuit 350.

In the electronic device 10 according to the embodiment of the present application, the electrical length of the parasitic branches 320 is less than or equal to one quarter of the corresponding wavelength of the first frequency band. The parasitic branches 320 are not likely to cause the electronic device 10 to form an efficiency sag phenomenon, and can ensure the radiation performance of the electronic device 10 .

Please refer to FIG. 20 , which is a sixth structural schematic diagram of the electronic device 10 provided by the embodiment of the present application. Electronic device 10 may also include a circuit board 700 and a power supply 800 .

The circuit board 700 can be installed on the first body 100 or the second body 200 , and the circuit board 700 can be the main board of the electronic device 10 . The circuit board 700 can be integrated with a processor, and can also be integrated with one or more functional components such as a headphone jack, an acceleration sensor, a gyroscope, and a motor. The flexible screen assembly 500, the feed source 330, the first matching circuit 340, and the second matching circuit 350 can be disposed on the circuit board 700 to be controlled by a processor on the circuit board 700.

It can be understood that the circuit board 700 may be a flexible circuit board to accommodate the relatively movable first body 100 and the second body 200 . The circuit board 700 may also be a non-flexible circuit board. In this case, the electronic device 10 may be provided with the circuit board 700 on the first body 100 and the second body 200 respectively; the electronic device 10 may also be provided with the circuit board 700 only on a certain body. The electrical connection between various functional modules and the circuit board 700 can be realized through, but is not limited to, flexible electrical connectors. The embodiments of the present application do not limit this.

The power supply 800 may be installed on at least one of the first body 100 and the second body 200 . At the same time, the power supply 800 can be electrically connected to the circuit board 700 so that the power supply 800 can power the electronic device 10 . The circuit board 700 may be provided with a power management circuit. The power management circuit may distribute the voltage provided by power supply 800 to various electronic devices in electronic device 10 .

It can be understood that the above are only illustrative examples of the electronic device 10. The electronic device 10 in the embodiment of the present application may also include components such as cameras, sensors, and acoustic-to-electrical conversion devices. For these components, please refer to the descriptions in the related art, here No longer.

It should be understood that in the description of this application, terms such as "first" and "second" are only used to distinguish similar objects, and cannot be understood to indicate or imply relative importance or implicitly indicate the indicated technology. Number of features.

The electronic device provided by the embodiment of the present application has been introduced in detail above. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present application. In summary, the content of this description should not be understood as a limitation of the present application.

Claims

An electronic device including:

A first body, a receiving space is formed on the first body, and the first body includes a first frame;

Parasitic branches are arranged on the first border;

a second body, the second body can move relative to the first body, so that at least part of the second body can be received in the receiving space; and

Main radiating branches are provided on the second body. When at least part of the second body is received in the receiving space, at least part of the main radiating branches are covered by the parasitic branches and are electromagnetically coupled with the parasitic branches, The main radiating branch is used to radiate signals together with the parasitic branch.
The electronic device according to claim 1, wherein a first slit is formed on the first frame to form a first metal stub on the first frame, and the parasitic stub includes the first metal stub.
The electronic device according to claim 2, wherein the electronic device further includes:

A metal cover plate is provided on the first body, and a second gap is formed on the metal cover plate. When at least part of the second body is received in the receiving space, at least part of the main radiating branches are connected to the The second slits are arranged oppositely.
The electronic device according to claim 1, wherein the electronic device further includes:

A metal cover plate is provided on the first body, the metal cover plate is bent and connected to the first frame, and a third gap is formed at the connection between the metal cover plate and the first frame, so that part of the The first frame forms a second metal branch, and the parasitic branch includes the second metal branch.
The electronic device according to claim 4, wherein when at least part of the second body is received in the receiving space, at least part of the main radiation branches are arranged opposite to the third gap.
The electronic device according to claim 4, wherein the metal cover is integrally connected to the first frame.
The electronic device according to claim 4, wherein the metal cover is grounded.
The electronic device according to claim 1, wherein the parasitic branches and the main radiating branches are inverted F antenna structures.
The electronic device according to claim 1, wherein the parasitic branch includes a first free end and a first ground end arranged oppositely, and the first ground end is connected to the ground;

The main radiating branch includes a second free end and a second ground end that are oppositely arranged. The second ground end is grounded. When at least part of the second body is received in the receiving space, the first free end is located in the receiving space. The projection on the second body covers at least part of the second free end.
The electronic device according to claim 9, wherein the first free end is oriented in the same direction as the second free end.
The electronic device according to claim 10, wherein when at least part of the second body is accommodated in the accommodation space, the current flow direction on the main radiating branch is the same as the current flow direction on the parasitic branch, so that The magnetic field generated by the main radiating branch and the magnetic field generated by the parasitic branch are superimposed on each other.
The electronic device according to claim 1, wherein when at least part of the second body is received in the receiving space, the main radiation branch is used to generate a first resonance and support a wireless signal of a first frequency band, the The parasitic branches are used to generate the second resonance to support the wireless signal of the second frequency band.
The electronic device of claim 11, wherein the second frequency band at least partially overlaps with the first frequency band.
The electronic device according to claim 13, wherein the electrical length of the main radiation branch is equal to one quarter of the corresponding wavelength of the first frequency band; and/or,

The electrical length of the parasitic branch is less than or equal to one quarter of the corresponding wavelength of the first frequency band.
The electronic device according to claim 1, wherein when the first body and the second body are far away from each other and in an expanded state, the main radiating branch is used to generate a third resonance, and the third resonance is used to generate a third resonance. To support wireless signals in the first frequency band.
The electronic device according to claim 1, wherein the electronic device further includes:

Feed source for providing excitation signals; and

A first matching circuit is electrically connected between the feed source and the main radiation branch. The first matching circuit is used to match the impedance of the feed source when transmitting the excitation signal.
The electronic device according to claim 1, wherein the electronic device further includes:

A second matching circuit. One end of the second matching circuit is electrically connected to the parasitic branch and the other end is grounded. The second matching circuit is used to adjust the electrical length of the parasitic branch.
The electronic device according to claim 1, wherein the electronic device further includes:

A flexible screen assembly is connected to the first body and the second body and moves with the movement of the first body and the second body to change the size of the display area of the flexible screen assembly.
The electronic device according to claim 18, wherein the electronic device further includes:

A metal cover plate is provided on the first body. The metal cover plate is fit with the first body. The flexible screen assembly in the received state is located on one side of the metal cover plate facing the first body. .
The electronic device according to claim 18, wherein the electronic device further includes:

A metal cover plate is provided on the first body, and a gap is formed between the metal cover plate and the first body. When the first body and the second body are switched between the accommodation state and the unfolded state, , the flexible screen component realizes state switching within the gap.