CN114845497B - Electronic equipment - Google Patents

Abstract

The application provides electronic equipment, which comprises a first body, a second body and a main radiation branch knot, wherein the first body comprises a first frame, and a parasitic branch knot is arranged on the first frame; the second body can move relative to the first body, and at least part of the second body can be accommodated in the accommodating space of the first body; when at least part of the second body is accommodated in the accommodating space, at least part of the main radiation branches are covered by the parasitic branches and are electromagnetically coupled with the parasitic branches. Based on the above, the radiation energy of resonance formed by the main radiation branches can radiate to free space through the parasitic branches, and the parasitic branches can improve the radiation performance of the main radiation branches in the accommodating state, so that the electronic equipment has good radiation performance in the unfolding state or the accommodating state.

Description

Electronic equipment

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 be pulled out and rolled up, so that the electronic devices can have an unfolded form and a retracted form. The electronic devices can include antennas to implement wireless communication functions.

However, compared to the deployed state, when the electronic device is in the stored state, the surrounding environment of the antenna will undergo adverse changes, resulting in a decrease in the radiation performance of the antenna.

Summary of the invention

The present application provides an electronic device that can ensure the radiation performance of the electronic device in a contained form.

The present application provides an electronic device, including:

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

A parasitic branch, arranged on the first frame;

a second body, the second body being movable relative to the first body so that at least a portion of the second body can be accommodated in the accommodation space; and

A main radiation branch is arranged on the second body. When at least a portion of the second body is accommodated in the accommodation space, at least a portion of the main radiation branch is covered by the parasitic branch and electromagnetically coupled with the parasitic branch. The main radiation branch is used to radiate signals together with the parasitic branch.

The electronic device of the present application, the first body includes a first frame, the first frame is provided with parasitic branches, the second body can move relative to the first body, at least part of the second body can be accommodated in the accommodation space of the first body and at least part of the main radiation branches can be covered by the parasitic branches, the main radiation branches can be electromagnetically coupled with the parasitic branches and radiate signals together, the radiation energy formed by the resonance of the main radiation branches can be radiated to the free space through the outer parasitic branches, the parasitic branches can improve the radiation performance of the main radiation branches when they are in the accommodation state, and can avoid the deterioration of the performance of the main radiation branches caused by the change of the state of the electronic device. The electronic device of the present application, the first body and the second body are in the expanded state or the accommodation state, and the main radiation branches have good radiation performance.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of a first structure of an electronic device provided in an embodiment of the present application.

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

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 of the electronic device shown in FIG. 3 from another direction.

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

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

FIG. 7 is a reflection coefficient curve diagram of the electronic device shown in FIG. 5 and FIG. 6 in the stored state and the unfolded state.

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

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

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

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

FIG. 12 is a schematic diagram of a second structure of an electronic device provided in an embodiment of the present application.

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

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

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

FIG. 16 is a fifth structural diagram of an electronic device provided in an embodiment of the present application.

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

FIG18 is a reflection coefficient curve diagram 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 wavelength corresponding to the first frequency band.

FIG19 is a radiation performance curve diagram 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 wavelength corresponding to the first frequency band.

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

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with Figures 1 to 20 in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

An embodiment of the present application provides an electronic device 10. The electronic device 10 may be a device such as a smart phone, a tablet computer, or a gaming device, an augmented reality (AR) device, an automotive device, a data storage device, an audio playback device, a video playback device, a laptop computer, a desktop computing device, etc. Please refer to Figures 1 to 4, Figure 1 is a first structural schematic diagram of the electronic device 10 provided in an embodiment of the present application, Figure 2 is a structural schematic diagram of the electronic device 10 shown in Figure 1 in another direction, Figure 3 is a structural schematic diagram of the electronic device 10 shown in Figure 1 in another form, and Figure 4 is a structural schematic diagram of the electronic device 10 shown in Figure 3 in another direction. The electronic device 10 includes a first body 100, a second body 200, a main radiation branch 310, a parasitic branch 320, and a feed source 330.

A receiving space 101 may be formed on the first body 100, and the first body 100 and the second body 200 may move toward each other so that at least a portion of the second body 200 may 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 radiation branch 310 may be disposed on the second body 200, for example, the second body 200 may include a surface 210 disposed opposite to the first frame 110, the main radiation branch 310 may be formed or connected to the surface 210, the feed source 330 may be directly or indirectly electrically connected to the main radiation branch 310, and the feed source 330 may provide an excitation signal to excite the main radiation 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 accommodated in the accommodation space 101 of the first body 100, the second body 200 can be located on the side of the first frame 110 of the first body 100 away from the free space, and the second body 200 can be located on the inner side of the first frame 110. At this time, at least part of the main radiation branches 310 can be covered by the parasitic branches 320 arranged on the first frame 110, and there can be a gap between the main radiation branches 310 and the parasitic branches 320. The main radiation branches 310 can be electromagnetically coupled with the parasitic branches 320, the main radiation branches 310 can radiate signals together with the parasitic branches 320, and the main radiation branches 310 can radiate signals to the free space through the parasitic branches 320.

Among them, the first body 100 and the second body 200 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, the electronic devices such as the camera, the receiver, the circuit board 700 provided with the radio frequency circuit such as the feed source 330, the power supply 800, etc. in the electronic device 10 can be installed on the first body 100 and the second body 200 for fixing. The first body 100 can be a hollow frame structure so that the first body 100 can form a receiving space 101. For example, but not limited to, the first body 100 can be a drawer-like structure, and the first frame 110 can be the top frame or the bottom frame of the first body 100 of the frame structure. The second body 200 can be a thin plate or sheet-like structure, and the main radiation branch 310 can be formed on or connected to the top surface or the bottom surface (i.e., the surface 210) of the thin plate structure; the second body 200 can also be a hollow frame structure, in which case the main radiation branch 310 can 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 that of the first body 100, so that the second body 200 can be accommodated in the accommodation space 101 of the first body 100. It is understood that the first body 100 and the second body 200 may be provided with, but not limited to, slide rails, slideways, and other pull-out or sliding structures, so that the first body 100 and the second body 200 can slide, pull, and other operations to achieve relative movement of the first body 100 and the second body 200. These pull-out or sliding structures can refer to the description of the relevant technology and will not be described in detail here.

During the pulling and sliding operation, the first body 100 and the second body 200 can switch between the storage state and the unfolded state. For example, as shown in FIGS. 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 FIGS. 1 and 2 , the first body 100 and the second body 200 can also be pulled or slid closer to each other to form a storage state.

It can be understood that the expanded state may refer to a state in which the second body 200 and the first body 100 are separated from each other and do not contact each other; the contained state may refer to a state in which at least part of the second body 200 is contained in the containing space 101 of the first body 100. When the second body 200 is completely contained in the containing space 101, the first body 100 and the second body 200 may be in a completely contained state; when part of the second body 200 is contained in the containing space 101, the first body 100 and the second body 200 may be in a semi-contained state.

It is understandable that the pulling and sliding operation of the first body 100 and the second body 200 can be that the first body 100 and the second body 200 move simultaneously to achieve the switching between the unfolded state and the accommodated state, or one of the first body 100 and the second body 200 moves while the other does not move to achieve the switching between the unfolded state and the accommodated state. Based on the relativity of the movement, the above movement situations can all be within the protection scope of the feature of "the second body 200 can move relative to the first body 100" of this application. This embodiment of the application does not limit this.

The main radiation branch 310 and the parasitic branch 320 may be made of a conductive material and may radiate wireless signals. For example, the main radiation branch 310 and the parasitic branch 320 may support, but are not limited to, wireless fidelity (Wi-Fi) signals, global positioning system (GPS) signals, third-generation mobile communication technology (3rd-Generation, 3G), fourth-generation mobile communication technology (4th-Generation, 4G), fifth-generation mobile communication technology (5th-Generation, 5G), etc. This embodiment of the present application does not limit this.

It is understandable that the parasitic branch 320 can be arranged on the first frame 110, the parasitic branch 320 can be directly or indirectly connected to a certain surface of the first frame 110, and can also be formed on the first frame 110 by, but not limited to, etching, laser carving, slitting, etc. Similarly, the main radiation branch 310 is arranged on the second body 200, the main radiation branch 310 can be directly or indirectly connected to a certain surface of the second body 200, and can also be formed on the second body 200 by, but not limited to, etching, laser carving, slitting, etc. The embodiment of the present application does not specifically limit the formation and connection method of the parasitic branch 320 and the main radiation branch 310.

As shown in Figures 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 a first resonance and support wireless signals in the first frequency band, the parasitic branch 320 can generate a second resonance and support wireless signals in the second frequency band, the second frequency band can at least partially overlap with the first frequency band, the parasitic branch 320 can serve as an auxiliary radiating branch of the main radiating branch 310 and radiate signals together with the main radiating branch 310, the main radiating branch 310 can radiate signals to the free space through the parasitic branch 320, and the parasitic branch 320 can improve the radiation performance of the main radiating branch 310.

As shown in FIG3 and FIG4, when the first body 100 and the second body 200 are away from each other and in an unfolded state, the main radiation branch 310 and the parasitic branch 320 are away from each other and do not overlap, and the two do not generate electromagnetic coupling. At this time, the main radiation branch 310 can 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 FIG4, the electronic device 10 can also include a first matching circuit 340, and the first matching circuit 340 can be connected in series between the feed source 330 and the main radiation branch 310. The first matching circuit 340 can match the impedance of the feed source 330 when transmitting the excitation signal, so that the main radiation branch 310 can radiate the signal, for example, the main radiation branch 310 can form a third resonance and support the first wireless signal of the first frequency band.

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

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

As shown in Fig. 5 and Fig. 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 storage state, the first frame 110 will block at least part of the second body 200 and at least part of the main radiation branches 310, and the first frame 110 can block the transmission of the radiation energy of the main radiation branches 310, so that the radiation performance of the main radiation branches 310 is reduced. As shown in Fig. 7 and Fig. 8, curves S1 and S2 in Fig. 7 are respectively reflection coefficient curves when the electronic device 10 shown in Fig. 6 and Fig. 5 is in the unfolded state and the stored state, curves S3 and S4 in Fig. 8 are respectively radiation efficiency curves and system efficiency curves when the electronic device 10 shown in Fig. 6 is in the unfolded state, and curves S5 and S6 are respectively radiation efficiency curves and system efficiency curves when the electronic device 10 shown in Fig. 5 is in the stored state. It can be seen from curves S1 to S6 that when the first body 100 and the second body 200 are far away from each other in the unfolded state, the first frame 110 will not block the second body 200, the main radiation branch 310 can generate the third resonance and radiate the first wireless signal, and 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 in the accommodated state, the first frame 110 will block at least part of the second body 200 and the main radiation branch 310, and the resonance frequency of the third resonance of the main radiation branch 310 will shift to high frequency, resulting in the poor matching performance of the feed source 330, the first matching circuit 340 and the main radiation branch 310, and the radiation efficiency in the accommodated state is obviously worse than that in the unfolded state, and the difference between the two is about 4.2dB. From the unfolded state to the accommodated state, the system efficiency average deteriorates from -4.8dB to -12.6dB, and the performance of the main radiation branch 310 is basically deteriorated.

In contrast, please refer to FIG. 1 and FIG. 2 and to FIG. 9 and FIG. 10. FIG. 9 is a reflection coefficient curve of the electronic device 10 shown in FIG. 1 in the storage state, and FIG. 10 is a radiation performance curve of the electronic device 10 shown in FIG. 1 in the storage state. As shown in FIG. 9 and FIG. 10, curve S7 in FIG. 9 is a reflection coefficient curve when the electronic device 10 shown in FIG. 1 is provided with a parasitic branch 320 on the first frame 110 and the electronic device 10 is in the storage state, and curves S8 and S9 in FIG. 10 are respectively a radiation efficiency curve and a system efficiency curve when the electronic device 10 shown in FIG. 1 is provided with a parasitic branch 320 on the first frame 110 and the electronic device 10 is in the storage state. It can be seen from curves S7 to 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 the storage state, the main radiation branch 310 can be electromagnetically coupled with the parasitic branch 320 and radiate signals together, and the main radiation branch 310 can radiate energy outward through the parasitic branch 320. At this time, the resonance point of the first resonance generated by the main radiation branch 310 has basically no frequency shift compared to the resonance point of the third resonance in the unfolded state; the reflection coefficient value of the main radiation branch 310 has basically no change in the unfolded state and the accommodated state; the average system efficiency of the electronic device 10 in the accommodated state is about -4.5dB, which is not much different from the average system efficiency of -4.8dB in the opened state. It can be seen that the electronic device 10 of the embodiment of the present application can improve the radiation performance of the main radiation branch 310 when it is in the accommodated state by setting the parasitic branch 320 on the first frame 110, and can avoid the deterioration of the performance of the main radiation branch 310 caused by the change of the state of the electronic device 10.

As can be seen from Figure 9, when the first body 100 and the second body 200 are in the accommodated state, the main radiation branch 310 and the parasitic branch 320 are electromagnetically coupled, the main radiation branch 310 can generate a resonance such as a first resonance, and the parasitic branch 320 can generate another resonance such as a second resonance alone, and the first frequency band supported by the first resonance can at least partially overlap with the second frequency band supported by the second resonance. For example, as shown in FIG9 , both the main radiation branch 310 and the parasitic branch 320 can support wireless signals within the frequency range of 1.15 GHz to 1.3 GHz, wherein the frequency point of the first resonance formed by the main radiation branch 310 can be between 1.15 GHz and 1.2 GHz, and the frequency point of the second resonance formed by the parasitic branch 320 can be between 1.25 GHz and 1.3 GHz. The main radiation branch 310 can mainly support wireless signals within the frequency range of 1.15 GHz to 1.2 GHz and secondarily support wireless signals within the frequency range of 1.25 GHz to 1.3 GHz, and the parasitic branch 320 can mainly support wireless signals within the frequency range of 1.25 GHz to 1.3 GHz and secondarily support wireless signals within the frequency range of 1.15 GHz to 1.2 GHz. Thus, when the electronic device 10 is in the storage state, the main radiation branch 310 and the parasitic branch 320 can not only electromagnetically couple the common radiation signal to ensure that the radiation performance of the main radiation branch 310 is not deteriorated, but also support the transmission of wireless signals in more frequency bands. 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 the first frame 110 is provided with a parasitic branch 320. The second body 200 can move relative to the first body 100, and at least a part of the second body 200 can be accommodated in the accommodation 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 on the outside of the second body 200, and the main radiation branch 310 on the second body 200 can be electromagnetically coupled with the parasitic branch 320 on the first frame 110 and radiate signals together. The radiation energy formed by the resonance of the main radiation branch 310 can be radiated to the free space through the parasitic branch 320 on the outside. The parasitic branch 320 can improve the radiation performance of the main radiation branch 310 when it is in the accommodation state, and can avoid the phenomenon that the performance of the main radiation branch 310 is deteriorated due to the change of the state of the electronic device 10. In the electronic device 10 of the embodiment of the present application, the first body 100 and the second body 200 are in the expanded state or the accommodation state, and the main radiation branch 310 has good radiation performance.

In particular, please refer to Figure 1 and Figures 11 to 13 in combination, Figure 11 is a schematic diagram of an exploded structure of a sub-device provided in an embodiment of the present application, Figure 12 is a schematic diagram of a second structure of an electronic device 10 provided in an embodiment of the present application, and Figure 13 is a schematic diagram of the structure of the electronic device 10 shown in Figure 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 can form a display surface of the electronic device 10 for displaying images, texts and other information. 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 be connected to the second body 200 by bypassing the rotating shaft 400. The first body 100 and the second body 200 can support the flexible screen assembly 500. The first body 100 and the second body 200 can drive the flexible screen assembly 500 to move together during the mutual movement, or drive the flexible screen assembly 500 to move. The flexible screen assembly 500 can move with the relative movement of the first body 100 and the second body 200, so that 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 away from each other and in an unfolded state, the flexible screen assembly 500 can make the first end and the second end be in the same plane as the first body 100 and the second body 200 are unfolded, and the flexible screen assembly 500 can be entirely located on the first side of the electronic device 10, which can be the display side of the electronic device 10.

For another example, as shown in Figure 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 a accommodated state, a portion of the flexible screen assembly 500 can be located on the first side of the electronic device 10, and another portion of the flexible screen assembly 500 can bypass the hinge 400 and extend to the second side of the electronic device 10, which is arranged opposite to the first side and is the non-display side of the electronic device 10.

It can be understood that the rotating shaft 400 can be set on the first body 100 or on the second body 200. When the rotating shaft 400 is set on the first body 100, when the first body 100 and the second body 200 are in the storage 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 cover the second side of the first body 100, and the user cannot see the second side of the first body 100. 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 can also be provided with a shielding member (not shown), which can be spaced apart from the first body 100 to form a gap. The flexible screen assembly 500 can be located in the gap when extending to the second side. The shielding member is located on the outside of 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, and the size of the display area of the electronic device 10 can be adjusted, so that the electronic device 10 can have a larger display area.

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

The metal cover plate 600 may be disposed on the first body 100, and the metal cover plate 600 may be directly or indirectly connected to the first body 100. For example, the metal cover plate 600 may be connected to the surface of the second side of the first body 100 by snapping or bonding. The metal cover plate 600 may form part of the appearance of the electronic device 10.

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

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

Based on the structure of the electronic device 10 described above, please refer to FIG. 14, which is a third structural schematic diagram of the electronic device 10 provided in the embodiment of the present application. The parasitic branch 320 in the embodiment of the present application may be a metal branch formed by opening a gap. For example, a first gap 102 may be formed on the first frame 110, and the first gap 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.

It can be understood that the first gap 102 can pass through 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 radiation energy generated by the main radiation branch 310 can be radiated to the free space through the gap.

It is understandable that the first gap 102 may be, but is not limited to, a U-shaped gap, a V-shaped gap, one or more straight gaps, etc. Any gap scheme that can form the first metal branch 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 is understandable that, considering the integrity of the appearance, the first gap 102 can be filled with a material that has little effect on the radiation performance of the main radiation branches 310 and the parasitic branches 320, and the color of the material can be as similar as possible to the color of the first frame 110.

The electronic device 10 of the embodiment of the present application has a first slit 102 on the first frame 110 and forms a parasitic branch 320 on the first frame 110. On the one hand, the first frame 110 is reused to reduce the space occupied by the parasitic branch 320. On the other hand, the radiation energy generated by the main radiation branch 310 can also be radiated to the free space through the slit, and the radiation performance of the main radiation branch 310 is better.

14 again, a second slit 103 may be formed on the metal cover 600 of the electronic device 10. When at least a portion of the second body 200 is received in the receiving space 101, at least a portion of the main radiation branch 310 is disposed opposite to the second slit 103, and at least a portion of the projection of the second slit 103 on the second body 200 may be located on the main radiation branch 310.

It is understandable that the second slit 103 on the metal cover plate 600 may be a groove structure extending from the edge of the metal cover plate 600 to the main body of the metal cover plate 600; the second slit 103 may also be a through-hole structure formed on the metal cover plate 600 (not connected to the edge of the metal cover plate 600). The second slit 103 may be provided at the connection between the metal cover plate 600 and the first frame 110, or the second slit 103 may be formed in the area between the metal cover plate 600 and the first frame 110. The specific structure of the second slit 103 is not limited in the embodiment of the present application.

It is understandable that, like the first gap 102 , the second gap 103 may also be filled with a material that has little effect on the radiation performance of the main radiation branch 310 and the parasitic branch 320 , and a filler of a suitable color may be selected for filling.

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

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

It is understandable that the metal cover 600 can be connected to the first frame 110 by bending by means of, but not limited to, snaps, screws, bonding, etc., or the metal cover 600 can be connected to the first frame 110 by bending, and the two can be integrally formed by means of Computerized Numerical Control (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 a contained state, part or all of the main radiation branches 310 can be arranged opposite to the second gap 103. At this time, the electromagnetic energy of the main radiation branches 310 can be radiated outward through the second gap 103 in addition to being radiated outward through the parasitic branches 320 and the first gap 102. The metal cover 600 has little effect on the radiation performance of the main radiation branches 310, which can further ensure that the main radiation branches 310 have better radiation performance.

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

The metal cover plate 600 may be bent and connected to the first frame 110 directly or indirectly, for example, the metal cover plate 600 may be integrally formed and connected to the first frame 110. A third gap 104 is formed at the connection between the metal cover plate 600 and the first frame 110, and the third gap 104 may cause a partial area of the first frame 110 to be not connected to the metal cover plate 600, and the partial area may cause a part of the first frame 110 to form a second metal branch 112, and the parasitic branch 320 may include the second metal branch 112.

It is understandable that the third slit 104 can be arranged parallel to the display surface of the electronic device 10. The third slit 104 can be extended from the edge of the metal cover plate 600 toward the main body of the metal cover plate 600, so that a second metal branch 112 with a free end can be formed at the connection between the metal cover plate 600 and the first frame 110, and the free end can be oriented in a direction away from the metal cover plate 600. At this time, the second metal branch 112 can form the parasitic branch 320 in the aforementioned 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 branch 310 can be arranged opposite to the third gap 104, and the projection of the third gap 104 on the second body 200 can be partially or completely located on the main radiation branch 310, and the main radiation branch 310 can radiate signals outward through the third gap 104.

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

It is understandable 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 a material that has little effect on the radiation performance of the main radiation branch 310 and the parasitic branch 320 , and a filler of a suitable color can be selected for filling.

It is understandable 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, so that the metal cover 600 after the grounding setting can further reduce the interference to the main radiation branch 310 and the parasitic branch 320. It should be noted that the second body 200 can also be grounded or form a ground plane of the electronic device 10, and after the main radiation branch 310 is connected to the second body 200, the main radiation branch 310 can also be grounded.

The electronic device 10 of the embodiment of the present application forms a third gap 104 at the connection between the metal cover 600 and the first frame 110. The third gap 104 can form a parasitic branch 320 and also facilitate the energy radiation of the main radiation branch 310. The third gap 104 realizes reuse, and the third gap 104 is not easy to affect the structural strength of the metal cover 600 and the first frame 110.

Please refer to Fig. 16, which is a fifth structural diagram of the electronic device 10 provided in the embodiment of the present application. The parasitic branch 320 and the main radiation branch 310 of the embodiment of the present application can both form an inverted F antenna (IFA).

The parasitic branch 320 may include a first free end 321 and a first grounding end 322 that are arranged opposite to each other, the first free end 321 may be arranged without being grounded, and the first grounding end 322 may be directly or indirectly electrically connected to a ground plane to achieve grounding. For example, as shown in FIG. 2 and FIG. 4 , the electronic device 10 may also 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 grounded, for example, the other end of the second matching circuit 350 may be electrically connected to the metal cover 600, so that the parasitic branch 320 may be grounded through the second matching circuit 350.

The main radiation branch 310 may include a second free end 311 and a second grounding end 312 that are arranged opposite to each other. The second free end 311 may be arranged without being grounded, and the second grounding 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 grounding end 312 may be electrically connected to the second body 200 to achieve grounding.

When at least part of the second body 200 is accommodated in the accommodation space 101 so that the electronic device 10 is in an accommodated state, the first free end 321 can be stacked up and down with the second free end 311 of at least part of the main radiation branch 310. In the vertical direction of the electronic device 10, at least part of the first free end 321 of the parasitic branch 320 can be located on the side directly above or directly below the second free end 311 of the main radiation branch 310. The two are stacked, and the projection of the first free end 321 on the second body 200 or the main radiation branch 310 can 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 the storage state and the main radiation branch 310 forms the first resonance and the parasitic branch 320 forms the second resonance, the current can flow from the ground end of the main radiation branch 310 and the parasitic branch 320 to the free end, and the current at the free end is relatively large. 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, thereby more easily exciting the parasitic branch 320 to generate the second resonance.

16 and 17, which is a current distribution diagram of the electronic device 10 shown in FIG16. 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 also be oriented in the same direction as the second free end 311.

As shown in Figure 17, the first current I1 flowing on the main radiating branch 310 can flow from the second ground end 312 to the second free end 311, and the second current I2 flowing on the parasitic branch 320 can flow from the first ground end 322 to the first free end 321, so that the flow directions of the first current I1 and the second current I2 are the same, and the direction of the magnetic field generated by the main radiating branch 310 can be the same as the direction of the magnetic field generated by the parasitic branch 320, and 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 effect of the excitation signal provided by the feed source 330 on the main radiation branch 310 and the third resonance formed by the main radiation branch 310 in the expanded state and the first resonance formed in the accommodated state can both support the wireless signal of the first frequency band, the electrical length of the main radiation branch 310 can 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 can be equal to or approximately equal to one quarter of the wavelength corresponding to the resonance point of the first resonance or the third resonance. At this time, the input impedance on the main radiation branch 310 presents a pure resistance, which is more conducive to the main radiation branch 310 to form the first resonance.

It can be understood that the electrical length may refer to the effective electrical length. Generally speaking, the electrical length or effective electrical length of the radiation branch is often different from the actual physical length of the radiation branch due to the influence of the shape of the radiation branch, the capacitor, resistor, inductor and other devices electrically connected to the radiation branch. For example, when the main radiation branch 310 and the parasitic branch 320 are not provided with a tuning circuit or a matching circuit that can change the effective electrical length, the electrical length of the main radiation branch 310 and the parasitic branch 320 may be equal to the physical length between the two ends thereof. When the main radiation branch 310 and the parasitic branch 320 are also provided with a tuning circuit or a matching circuit that can change the effective electrical length, at this time, the electrical length of the main radiation branch 310 and the parasitic branch 320 may be greater than or less than the physical length between the two ends thereof. In actual debugging, the shape of the main radiation branch 310 and the parasitic branch 320, the capacitor, inductor, resistor and other devices electrically connected thereto may be adjusted to meet the electrical length radiation requirements of the main radiation branch 310 and the parasitic branch 320. The specific debugging method is not described in detail here.

Among them, when the electronic device 10 is in the accommodation state, the parasitic branch 320 can be electromagnetically coupled with the main radiation branch 310 and support the wireless signal of the second frequency band, and the electrical length of the parasitic branch 320 can be less than or equal to one-fourth of the wavelength corresponding to the first frequency band, for example, the electrical length of the parasitic branch 320 can be less than or equal to one-fourth of the wavelength corresponding to the resonance point of the first resonance or the third resonance. At this time, when the parasitic branch 320 is used as an auxiliary branch, it is not easy for the main radiation branch 310 to form a slot antenna form, and the system efficiency and radiation efficiency curves of the electronic device 10 are not easy to produce pits, and the radiation performance of the electronic device 10 is better.

For example, please refer to Figures 9 and 10 and to Figures 18 and 19. Figure 18 is a reflection coefficient curve of the electronic device 10 when the length of the parasitic branch 320 of the electronic device 10 of the embodiment of the present application is greater than one-quarter of the wavelength corresponding to the first frequency band, and Figure 19 is a radiation performance curve of the electronic device 10 when the length of the parasitic branch 320 of the electronic device 10 of the embodiment of the present application is greater than one-quarter of the wavelength corresponding to the first frequency band. Curve S10 in Figure 18 is a reflection coefficient curve of the electronic device 10 when the length of the parasitic branch 320 is greater than one-quarter of the wavelength corresponding to the first frequency band, and curves S11 and S12 are respectively a radiation efficiency curve and a system efficiency curve of the electronic device 10 when the length of the parasitic branch 320 is greater than one-quarter of the wavelength corresponding to the first frequency band. By comparing the curve S7 in FIG9 and the curve S10 in FIG18 , it can be seen that when the length of the parasitic branch 320 is less than or equal to one-fourth of the wavelength corresponding to the first frequency band, the resonance point of the first resonance formed by the main radiation branch 310 in the contained state will not be substantially offset; and when the length of the parasitic branch 320 is greater than one-fourth of the wavelength corresponding to the first frequency band, the resonance point of the first resonance formed by the main radiation branch 310 in the contained state will be offset to a low frequency. In addition, by comparing the curves S8 and S9 in FIG10 and the curves S11 and S12 in FIG19 , it can be seen that when the length of the parasitic branch 320 is greater than one-fourth of the wavelength corresponding to the first frequency band, the system efficiency and radiation efficiency of the electronic device 10 in the contained state have obvious efficiency depressions, which seriously affect the radiation performance of the electronic device 10; and when the length of the parasitic branch 320 is less than or equal to one-fourth of the wavelength corresponding to the first frequency band, the system efficiency and radiation efficiency of the electronic device 10 in the contained state will not have efficiency depressions, and the system efficiency and radiation efficiency performance are relatively good.

It is understandable that the shape of the parasitic branch 320, the capacitor, inductor, resistor and other devices electrically connected thereto can be adjusted to meet the electrical length radiation requirement of the parasitic branch 320. For example, the electrical length of the parasitic branch 320 can be adjusted by a second matching circuit 350 electrically connected to the parasitic branch 320, so that the parasitic branch 320 can be electromagnetically coupled with the main radiation branch 310, and the parasitic branch 320 can be ensured not to have the adverse effect of the efficiency pit. The specific debugging process of the second matching circuit 350 is not limited in the embodiment of the present application.

In the electronic device 10 of the embodiment of the present application, the electrical length of the parasitic branch 320 is less than or equal to one quarter of the wavelength corresponding to the first frequency band. The parasitic branch 320 is unlikely to cause the electronic device 10 to form an efficiency depression phenomenon, and the radiation performance of the electronic device 10 can be guaranteed.

Please refer to Fig. 20, which is a sixth structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further 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. A processor can be integrated on the circuit board 700, and one or more functional components such as an earphone interface, an acceleration sensor, a gyroscope, and a motor can also be integrated. Among them, the flexible screen component 500, the feed source 330, the first matching circuit 340, and the second matching circuit 350 can be set on the circuit board 700 to be controlled by the processor on the circuit board 700.

It is understandable that the circuit board 700 may be a flexible circuit board to accommodate the first body 100 and the second body 200 that can move relative to each other. 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 one body and may, but is not limited to, realize electrical connection between various functional modules and the circuit board 700 through flexible electrical connectors. This embodiment of the application does not limit this.

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

It can be understood that the above is only an illustrative example of the electronic device 10. The electronic device 10 of the embodiment of the present application may also include components such as a camera, a sensor, and an acoustic-to-electric conversion device. These components can be found in the description of the relevant technology and will not be repeated here.

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

The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims (11)

1. An electronic device, comprising:

the first body is provided with an accommodating space, and comprises a first frame, wherein the first frame is a top frame of the first body;

Parasitic branches are arranged on the first frame;

The second body can move relative to the first body, so that at least part of the second body can be accommodated in the accommodating space; and

When at least part of the second body is accommodated in the accommodating space, the main radiation branch is positioned on one side of the parasitic branch, which is away from the free space, at least part of the main radiation branch is covered by the parasitic branch and is in electromagnetic coupling with the parasitic branch, the electric length of the main radiation branch is equal to one fourth of the corresponding wavelength of the first frequency band, the main radiation branch generates first resonance and supports a wireless signal of the first frequency band, the electric length of the parasitic branch is smaller than one fourth of the corresponding wavelength of the first frequency band, so that the parasitic branch generates second resonance and supports a wireless signal of the second frequency band, the central frequency of the first frequency band is smaller than the central frequency of the second frequency band, and the main radiation branch is used for jointly radiating GPS signals with the parasitic branch.

2. The electronic device of claim 1, wherein the first bezel has a first slot formed therein to form a first metal stub on the first bezel, the parasitic stub including the first metal stub.

3. The electronic device of claim 2, wherein the electronic device further comprises:

The metal cover plate is arranged on the first body, a second gap is formed in the metal cover plate, and when at least part of the second body is accommodated in the accommodating space, at least part of the main radiation branches are arranged opposite to the second gap.

4. The electronic device of claim 1, wherein the electronic device further comprises:

the metal cover plate is arranged on the first body and is connected with the first frame in a bending mode, a third gap is formed at the joint of the metal cover plate and the first frame, so that part of the metal cover plate forms a second metal branch knot on the first frame, and the parasitic branch knot comprises the second metal branch knot.

5. The electronic device of claim 4, wherein at least a portion of the main radiation branches are disposed opposite to the third slit when at least a portion of the second body is received in the receiving space.

6. The electronic device of claim 4, wherein the metal cover plate is integrally connected with the first bezel.

7. The electronic device of claim 1, wherein the parasitic branch comprises a first free end and a first ground end disposed opposite each other, the first ground end being grounded;

The main radiation branch comprises a second free end and a second grounding end which are oppositely arranged, wherein the second grounding end is grounded, and when at least part of the second body is accommodated in the accommodating space, the projection of the first free end on the second body covers at least part of the second free end.

8. The electronic device of claim 7, wherein the first free end is oriented in the same direction as the second free end.

9. The electronic device of claim 1, wherein the primary radiating branch supports wireless signals in a first frequency band, and wherein the parasitic branch supports wireless signals in a second frequency band that at least partially overlaps the first frequency band.

10. The electronic device of any one of claims 1-9, wherein the electronic device further comprises:

a feed source for providing an excitation signal; and

The first matching circuit is electrically connected between the feed source and the main radiation branch, and is used for matching the impedance of the feed source when the excitation signal is transmitted.

11. The electronic device of any one of claims 1-9, wherein the electronic device further comprises:

and one end of the second matching circuit is electrically connected with the parasitic branch and the other end of the second matching circuit is grounded, and the second matching circuit is used for adjusting the electrical length of the parasitic branch.