electronic devices

Abstract

This application discloses an electronic device relating to the field of communication technology. In this application, a first housing and a second housing are movable relative to each other to allow for deployment or retraction. A first radiator is disposed on the first housing and has a first end, a second end, and a feed point. The feed point is electrically connected to a first matching circuit, which receives an excitation signal. A control unit is electrically connected to an antenna assembly and is used to adjust the first matching circuit when the relative positions of the first and second housings change, thereby adjusting the operating frequency band of the antenna assembly to the target frequency band. In this application, when the relative positions of the first and second housings change to achieve deployment or retraction, the control unit adjusts the first matching circuit based on the change in their relative positions to adjust the operating frequency band of the antenna assembly to the target frequency band, thus maintaining the antenna performance of the antenna assembly and reducing the impact of the first and / or second housings on the first radiator.

Description

Technical Field

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

[0002] Sliding screen phones have different usage patterns during use, and the antenna currently mounted on the casing often experiences a decline in performance due to these different usage conditions. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide an electronic device, including:

[0004] A first housing and a second housing, wherein the first housing and the second housing are movable relative to each other to enable the first housing and the second housing to unfold or retract;

[0005] Antenna assembly, the antenna assembly comprising:

[0006] A first radiator, disposed on the first housing, has a first end, a second end, and a feed point, the feed point being electrically connected to a first matching circuit, the first matching circuit being used to receive an excitation signal; and

[0007] A control unit, electrically connected to the antenna assembly, is used to adjust the first matching circuit when the relative positions of the first housing and the second housing change, so as to adjust the operating frequency band of the antenna assembly to the target frequency band.

[0008] The beneficial effects of adopting the technical solution described in this application are as follows: the first radiator is disposed on the first housing. When the relative positions of the first housing and the second housing change to achieve unfolding or retraction, the control unit adjusts the first matching circuit based on the relative position changes of the first housing and the second housing to adjust the operating frequency band of the antenna assembly to the target frequency band, thereby maintaining the antenna performance of the antenna assembly and reducing the influence of the first housing and / or the second housing on the first radiator. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the antenna assembly in one embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the antenna assembly in another embodiment of this application;

[0012] Figure 3 for Figure 2 The diagram shows a structural schematic of the antenna assembly in another embodiment;

[0013] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the electronic device of this application in its fully closed state;

[0014] Figure 5 yes Figure 4 A schematic diagram of the disassembled structure of the electronic device in the embodiment;

[0015] Figure 6 for Figure 5 Exploded view of the second shell;

[0016] Figure 7 for Figure 5 A diagram showing the state of the first and second housings sliding relative to each other in one embodiment;

[0017] Figure 8 for Figure 5 A diagram showing the state of the first and second housings sliding relative to each other in one embodiment;

[0018] Figure 9 for Figure 8 Return loss curve of the antenna assembly in one embodiment;

[0019] Figure 10 for Figure 7 Return loss curve of the antenna assembly in one embodiment;

[0020] Figure 11 for Figure 5 A cross-sectional schematic diagram of the electronic device shown;

[0021] Figure 12 for Figure 4 A schematic diagram of the structural composition of the electronic device shown in another embodiment;

[0022] Figure 13 for Figure 12 Exploded view of the second shell;

[0023] Figure 14 for Figure 12 A diagram showing the state of the first and second housings sliding relative to each other in one embodiment;

[0024] Figure 15 for Figure 12 A diagram showing the state of the first and second housings sliding relative to each other in one embodiment;

[0025] Figure 16 for Figure 4A schematic diagram of the electronic device in the illustrated embodiment in another embodiment;

[0026] Figure 17 This is a schematic diagram of the structural composition of an electronic device in one embodiment of this application. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0028] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a mutually exclusive, independent, or alternative implementation. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0029] This application provides an antenna assembly. This antenna assembly can be used in electronic devices. This antenna assembly can broaden the mid-to-high frequency bandwidth of the antenna assembly, thereby improving the antenna performance.

[0030] The term "electronic device" as used herein (also referred to as a "terminal," "mobile terminal," or "electronic device") includes, but is not limited to, devices configured to receive / transmit communication signals via a wired connection (such as via a Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital Cable, Direct Cable Connection, and / or another data connection / network) and / or via a wireless interface (e.g., for cellular networks, Wireless Local Area Networks (WLANs), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters, and / or another communication terminal). A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephone with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or handheld receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0031] Please see Figure 1 , Figure 1 This is a schematic diagram of the antenna assembly 100 in one embodiment of this application. The antenna assembly 100 may be one or more of the following: a flexible printed circuit (FPC) antenna, a laser direct-structuring (LDS) antenna, a printed direct-structuring (PDS) antenna, and a metal stub antenna. Of course, the antenna assembly 100 may also be other types of antennas, which will not be elaborated further. In some embodiments, the antenna assembly 100 may be one or more of the following forms: strip, sheet, rod, coating, film, etc., but is not limited to the forms listed herein.

[0032] Please see Figure 1 The antenna assembly 100 may include a first radiator 10. The first radiator 10 may be used to support low-frequency bands and / or mid-to-high-frequency bands. The first radiator 10 is provided with a first end 11 and a second end 12.

[0033] The terms "first," "second," "third," etc., used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include at least one of those features.

[0034] The first radiator 10 is provided with a feed point 13. In some embodiments, the first radiator 10 may have a feed point 13 between a first end 11 and a second end 12. In some embodiments, the first radiator 10 may have a feed point 13 at the first end 11 and / or the second end 12. In some embodiments, the feed point 13 is electrically connected to a matching circuit, such as a first matching circuit 14. The matching circuit, such as the first matching circuit 14, may be electrically connected to a power supply 15. The power supply 15 can be used to generate an excitation signal.

[0035] In some embodiments, the first radiator 10 may be grounded at a first end 11 and / or a second end 12. Therefore, in some embodiments, "first end" and "second end" may also be referred to as "grounding points." Of course, "first end" may also be referred to as "first grounding point," and "second end" may also be referred to as "second grounding point." In some embodiments, the first radiator 10 may be grounded between the first end 11 and the second end 12.

[0036] In some embodiments, the first terminal 11 may be electrically connected to a tuning control circuit, such as a first tuning control circuit (not shown), and correspondingly, the tuning control circuit, such as the first tuning control circuit, is grounded.

[0037] In some embodiments, the second terminal 12 may be electrically connected to a tuning control circuit, such as a second tuning control circuit (not shown), and correspondingly, the tuning control circuit, such as the second tuning control circuit, is grounded.

[0038] The tuning control circuits, such as the first tuning control circuit and the second tuning control circuit, are primarily designed to enable the first radiator 10 to support low-frequency and / or mid-to-high-frequency bands. Therefore, the tuning control circuits, such as the first tuning control circuit and the second tuning control circuit, can be composed of a switching control circuit and / or a load circuit, or of an adjustable capacitor and / or an adjustable inductor. In one embodiment, the switching control circuit can be a switching chip with switching function, or a single-pole multi-throw switch or a single-pole single-throw switch.

[0039] Please see Figure 2 , Figure 2 This is a schematic diagram of the antenna assembly 100 in another embodiment of this application. The antenna assembly 100 may further include a second radiator 20 spaced apart from the first radiator 10 and forming a distributed capacitive coupling structure with the first radiator 10. The first radiator 10 and the second radiator 20 are arranged side-by-side to form the distributed capacitive coupling structure. The current signal on the first radiator 10 is fed into the second radiator 20 via capacitive coupling, so that the second radiator 20 can support multiple mid-to-high frequency bands.

[0040] Understandably, in other embodiments, the names "second radiator," "first radiator," and "radiator" in the above embodiments can be converted to each other. For example, "second radiator" can be converted to "first radiator," and correspondingly, "first radiator" can be converted to "second radiator."

[0041] Understandably, the first radiator 10 can be used alone. Of course, the first radiator 10 can also be used in conjunction with the second radiator 20. In the antenna assembly 100, the usage mode and frequency band information of the first radiator 10 and the second radiator 20 can be set according to actual needs.

[0042] Please see Figure 2 In some embodiments, the orthographic projection of the first end 11 onto the second radiator 20 is located on the second radiator 20. In some embodiments, the orthographic projection of the first end 11 onto the second radiator 20 is located outside the second radiator 20. In some embodiments, the orthographic projection of the second end 12 onto the second radiator 20 is located outside the second radiator 20. In some embodiments, the orthographic projection of the second end 12 onto the second radiator 20 is located on the second radiator 20.

[0043] Tuning control circuits, such as the first tuning control circuit and the second tuning control circuit, can achieve tuning of more than 20 mid-to-high frequency bands of the second radiator.

[0044] Please see Figure 2 The second radiator 20 is provided with a third end 21 and a fourth end 22.

[0045] Understandably, in other embodiments, the names “first end”, “second end”, “third end”, “fourth end” and “end” in the above embodiments can be converted to each other. For example, “first end” can be converted to “second end”, and correspondingly, “second end” can be converted to “first end”.

[0046] In some embodiments, the orthographic projection of the third end 21 onto the first radiator 10 is located on the first radiator 10. For example, the orthographic projection of the third end 21 onto the first radiator 10 is located between the first end 11 and the second end 12. In some embodiments, the orthographic projection of the third end 21 onto the first radiator 10 coincides with the first end 11. In some embodiments, the orthographic projection of the third end 21 onto the first radiator 10 is located outside the first radiator 10. For example, the orthographic projection of the third end 21 onto the first radiator 10 is located on the side of the first end 11 away from the second end 12.

[0047] Understandably, in some embodiments, the orthographic projection of the first end 11 onto the second radiator 20 is located outside the second radiator 20. For example, the orthographic projection of the first end 11 onto the second radiator 20 is located on the side of the third end 21 near the fourth end 22. In some embodiments, the orthographic projection of the first end 11 onto the second radiator 20 is located on the second radiator 20. For example, the orthographic projection of the first end 11 onto the second radiator 20 is located between the third end 21 and the fourth end 22.

[0048] In some embodiments, the orthographic projection of the fourth end 22 onto the first radiator 10 is located on the first radiator 10. For example, the orthographic projection of the fourth end 22 onto the first radiator 10 is located between the second end 12 and the first end 11. In some embodiments, the orthographic projection of the fourth end 22 onto the first radiator 10 coincides with the second end 12. In some embodiments, the orthographic projection of the fourth end 22 onto the first radiator 10 is located outside the first radiator 10. For example, the orthographic projection of the fourth end 22 onto the first radiator 10 is located on the side of the first end 11 away from the second end 12.

[0049] Understandably, in some embodiments, the orthographic projection of the second end 12 onto the second radiator 20 is located outside the second radiator 20. For example, the orthographic projection of the second end 12 onto the second radiator 20 is located on the side of the fourth end 22 away from the third end 21. In some embodiments, the orthographic projection of the second end 12 onto the second radiator 20 is located on the second radiator 20. For example, the orthographic projection of the second end 12 onto the second radiator 20 is located between the third end 21 and the fourth end 22.

[0050] In some embodiments, the second radiator 20 may be grounded at the third terminal 21 and / or the fourth terminal 22. Therefore, in some embodiments, the "third terminal" and the "fourth terminal" may also be referred to as "grounding points." Of course, the "third terminal" may also be referred to as the "third grounding point," and the "second terminal" may also be referred to as the "fourth grounding point." In some embodiments, the second radiator 20 may be grounded between the third terminal 21 and the fourth terminal 22.

[0051] In some embodiments, the third terminal 21 may be electrically connected to a tuning control circuit, such as a third tuning control circuit (not shown), and correspondingly, the tuning control circuit, such as the third tuning control circuit, is grounded.

[0052] In some embodiments, the fourth terminal 22 may be electrically connected to a tuning control circuit, such as a fourth tuning control circuit (not shown), and correspondingly, the tuning control circuit, such as the fourth tuning control circuit, is grounded.

[0053] The tuning control circuits, such as the third and fourth tuning control circuits, are primarily designed to support the low-frequency and / or mid-to-high-frequency bands of the second radiator 20. Therefore, the tuning control circuits, such as the third and fourth tuning control circuits, can consist of a switch control circuit and / or a load circuit, or an adjustable capacitor and / or an adjustable inductor. In one embodiment, the switch control circuit can be a switch chip with switching functionality, or a single-pole multi-throw switch or a single-pole single-throw switch.

[0054] The second radiator 20 has a grounding point, such as a fifth grounding point 23, between its third end 21 and its fourth end 22. This grounding point, such as the fifth grounding point 23, can be electrically connected to a matching circuit, such as a second matching circuit 24. The matching circuit, such as the second matching circuit 24, is grounded.

[0055] Understandably, in other embodiments, the names "first grounding point", "second grounding point", "third grounding point", "fourth grounding point" and "grounding point" in the above embodiments can be converted to each other. For example, "second grounding point" can be converted to "first grounding point", and correspondingly, "first grounding point" can be converted to "second grounding point".

[0056] In other embodiments, the names "first tuning control circuit", "second tuning control circuit", "third tuning control circuit", "fourth tuning control circuit" and "tuning control circuit" in the above embodiments can be interchanged. For example, "second tuning control circuit" can be interchanged with "first tuning control circuit", and correspondingly, "first tuning control circuit" can be interchanged with "second tuning control circuit".

[0057] In other embodiments, the names "first matching circuit", "second matching circuit" and "matching circuit" in the above embodiments can be converted to each other. For example, "second matching circuit" can be converted to "first matching circuit", and correspondingly, "first matching circuit" can be converted to "second matching circuit".

[0058] Please refer to the following: Figure 2 and Figure 3 , Figure 3 for Figure 2 The diagram shows the structure of the antenna assembly 100 in another embodiment. Figure 2 The length of the branch where the first radiator 10 and the second radiator 20 are coupled together is A. When the first radiator 10 and the second radiator 20 slide relative to each other, for example, sliding towards the side of the first end 11 away from the second end 12, they can slide to... Figure 3 The state of the branch is adjusted to regulate the branch length A. For example, Figure 3 The length A of the branch is relatively Figure 2 The branch length A in the middle is short.

[0059] When the stub length A changes, the antenna performance of the antenna assembly 100 can be altered, for example... Figure 2 In the middle, the operating frequency band of antenna assembly 100 is the target frequency band. Figure 3 In the process, due to the change in the length A of the stub, the operating frequency band of the antenna assembly 100 will deviate from the target frequency band.

[0060] In a further embodiment, the matching circuits, such as the first matching circuit 14 and the second matching circuit 24, can be adjusted according to the stub length A to ensure that the antenna performance of the antenna assembly 100 is optimal. For example, when the operating frequency band of the antenna assembly 100 deviates from the target frequency band, the matching circuits, such as the first matching circuit 14 and the second matching circuit 24, are adjusted according to the stub length A to ensure that the operating frequency band of the antenna assembly 100 is now the target frequency band. In a further embodiment, the tuning control circuits, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, can be adjusted according to the stub length A to ensure that the antenna performance of the antenna assembly 100 is optimal. For example... Figure 2 In the middle, the operating frequency band of antenna assembly 100 is the target frequency band. Figure 3 During the process, due to the change in stub length A, the operating frequency band of the antenna assembly 100 will deviate from the target frequency band. The tuning control circuit, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, can be adjusted according to the stub length A so that the operating frequency band of the antenna assembly 100 is the target frequency band at this time.

[0061] Understandably, when the first radiator 10 and the second radiator 20 slide relative to each other, the change in the stub length A causes the distributed capacitive coupling structure formed by the first radiator 10 and the second radiator 20 to be destroyed, and thus only the first radiator 10 in the antenna assembly 100 works.

[0062] The following describes an electronic device that can be equipped with the antenna assembly 100 in the above embodiments. This electronic device can be any of a plurality of electronic devices, including but not limited to cellular phones, smartphones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical devices, calculators, programmable remote controls, pagers, netbooks, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Image Experts Group (MPEG-1 or MPEG-2), Audio Layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0063] In some embodiments, the electronic device may include, but is not limited to, electronic devices with communication functions such as mobile phones, tablets, laptops, wearable devices, mobile internet devices (MIDs), e-books, PlayStation Portable (PSPs), or personal digital assistants (PDAs).

[0064] Please refer to the following: Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the overall structure of an embodiment of the electronic device of this application in its fully closed state. Figure 5 yes Figure 4 A schematic diagram of the disassembled structure of the electronic device in the embodiment. The electronic device 200 may include a first housing 30 on which an antenna assembly 100, such as a first radiator 10, a second housing 40 sliding relative to the first housing 30, and a flexible display screen 50 disposed on the first housing 30 and the second housing 40.

[0065] The second housing 40 is slidable relative to the first housing 30, and can partially slide into the first housing 30 for folding, or partially slide out of the first housing 30 for unfolding. The first housing 30 and the second housing 40 can be used to house electronic components such as a circuit board (on which control units, such as processors, are mounted), a battery, a camera, and sensors. The flexible display screen 50 is bendable and can be electrically connected to the circuit board, battery, and other electronic components to display information such as images and text. When the first housing 30 and the second housing 40 slide relative to each other, the flexible display screen 50 can partially slide into or out of the second housing 40. The antenna assembly 100, such as the first radiator 10, can be electrically connected to the circuit board, battery, etc., to achieve antenna performance.

[0066] It is understood that the terms "first housing", "second housing" and "housing" can be interchanged. For example, in some embodiments, "first housing" may also be referred to as "second housing" and "second housing" may also be referred to as "first housing".

[0067] The first housing 30 includes a bottom wall 31, side walls (e.g., a first side wall 32, a second side wall 33, and a third side wall 34) surrounding the edge of the bottom wall 31, and a top wall 35 disposed opposite to the bottom wall 31 and fixedly connected to the side walls. A receiving space 301 is formed between the bottom wall 31 and the top wall 35 to accommodate the second housing 40 and a portion of the flexible display screen 50. The side of the top wall 35 away from the bottom wall 31 is used to lay the flexible display screen 50 for support.

[0068] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0069] In addition, the terms "first sidewall", "second sidewall" and "sidewall" can be interchanged. For example, in some embodiments, "first sidewall" can also be called "second sidewall" and "second sidewall" can also be called "first sidewall".

[0070] The sidewall is fixedly connected to the edge of the bottom wall 31 and extends to one side of the top wall 35 for connection and fixation. The sidewall may include a first sidewall 32 and a second sidewall 33 disposed opposite to each other, and a third sidewall 34 fixedly connected to the first sidewall 32 and the second sidewall 33. The first sidewall 32, the second sidewall 33 and the third sidewall 34 are fixedly connected to the top wall 35.

[0071] In some embodiments, to enable relative sliding between the first housing 30 and the second housing 40, a first sliding portion 321 is provided on the sidewalls, such as the first sidewall 32 and the second sidewall 33, within the accommodating space 301, to slide relative to the second housing 40. In some embodiments, the first sliding portion 321 is a slide rail, roller, slider, etc. In one embodiment, the sliding direction of the first sliding portion 321 is consistent with the extending direction of the first sidewall 32. In some embodiments, the first sliding portion 321 may also be provided at other locations on the first housing 30, which will not be described in detail.

[0072] In some embodiments, a first radiator 10 is disposed on a sidewall, such as a second sidewall 33. In some embodiments, the first radiator 10 may be disposed in the extending direction of the sidewall, such as the second sidewall 33. It is understood that the first radiator 10 extends toward the third sidewall 34 to be disposed on the third sidewall 34.

[0073] In some embodiments, a first position detection element 322 is provided on a sidewall, such as the first sidewall 32, for cooperating with the second housing 40 to detect the relative position of the first housing 30 and the second housing 40. In some embodiments, the first position detection element 322 may be a proximity sensor, a Hall sensor, a magnetic element, or the like. In some embodiments, the first position detection element 322 is disposed adjacent to the first sliding portion 321. In some embodiments, when the first position detection element 322 is a magnetic element, it is preferably disposed on the first sidewall 32 to reduce the impact of the first position detection element 322 on the antenna performance of the first radiator 10. It is understood that the first position detection element 322 may be disposed in other locations as needed, which will not be elaborated upon.

[0074] The top wall 35 may include a plurality of side-by-side strip-shaped support walls 351. A first camber 302 is provided between two adjacent strip-shaped support walls 351 to make way for the second housing 40. In some embodiments, the first camber 302 communicates with the accommodating space 301 to further reduce the thickness of the electronic device 200.

[0075] Please refer to the following: Figure 5 and Figure 6 , Figure 6 for Figure 5An exploded view of the second housing 40. The second housing 40 includes a base plate 41, side plates (e.g., first side plate 42, second side plate 43, third side plate 44) surrounding the edge of the base plate 41, a top plate 45 opposite to the base plate 41 and fixed to the side plates, and rollers 46 disposed on the side plates. A receiving space 401 is provided between the base plate 41 and the top plate 45 to accommodate the flexible display screen 50. The side of the top plate 45 away from the base plate 41 is covered with the flexible display screen 50 together with the first housing 30 (e.g., the top wall 35) to support the flexible display screen 50. The flexible display screen 50 can be bent at the rollers 46 and into the receiving space 401. When the first housing 30 and the second housing 40 slide relative to each other, the rollers 46 rotate, causing the flexible display screen 50 to partially slide into or out of the second housing 40.

[0076] The side panel is fixedly connected to the edge of the bottom plate 41 and extends to one side of the top plate 45 for connection and fixation. The side panel may include a first side panel 42 and a second side panel 43 disposed opposite to each other, and a third side panel 44 fixedly connected to the first side panel 42 and the second side panel 43. The first side panel 42 and the second side panel 43 are fixedly connected to the top plate 45. The third side panel 44 is spaced apart from the top plate 45 so that the flexible display screen 50 is bent into the receiving space 401 between the third side panel 44 and the top plate 45.

[0077] It is understood that the terms "first side plate", "second side plate", "third side plate" and "side plate" can be interchanged. For example, in some embodiments, "first housing" can also be called "second housing" and "second housing" can also be called "first housing".

[0078] In some embodiments, to achieve relative sliding between the first housing 30 and the second housing 40, a second sliding portion 421 is provided on a side plate, such as the first side plate 42 or the second side plate 43, outside the receiving space 401. This second sliding portion 421 is mounted to the first housing 30, for example, the first sliding portion 321, and slides relative to it, sliding along the extending direction of either the first or second sliding portion 421. In one embodiment, the sliding direction of the second sliding portion 421 is consistent with the extending direction of the first side plate 42. In some embodiments, the second sliding portion 421 is a slide rail, a roller, a slider, etc. In some embodiments, the second sliding portion 421 may also be provided at other locations on the second housing 40, which will not be elaborated further. It is understood that the first sliding portion 321 and the second sliding portion 421 are not limited to the cooperation relationship of a slider and a slide rail, or a roller and a slide rail; other cooperation relationships are also possible, which will not be elaborated further.

[0079] It is understood that the terms "first sliding part", "second sliding part" and "sliding part" can be interchanged. For example, in some embodiments, "first sliding part" can also be called "second sliding part" and "second sliding part" can also be called "first sliding part".

[0080] In some embodiments, a second position detection element 422 is provided on a side plate, such as a first side plate 42, for cooperating with a first position detection element 322 on a first housing 30. The first position detection element 322 and / or the second position detection element 422 are electrically connected to a circuit board, such as a control unit, a battery, or other electronic components, to detect the relative position of the first housing 30 and the second housing 40. The circuit board, such as a control unit, receives the detection information detected by the cooperation of the first position detection element 322 and the second position detection element 422. In some embodiments, the second position detection element 422 may be a proximity sensor, a Hall sensor, a magnetic element, or the like. In some embodiments, the second position detection element 422 is disposed adjacent to the second sliding portion 421. In some embodiments, when the second position detection element 422 is a magnetic element, it is preferably disposed on the first side plate 42 to reduce the impact of the second position detection element 422 on the antenna performance of the first radiator 10. It is understood that the first position detection element 322 and the second position detection element 422 may form a detection assembly. Of course, the detection assembly may include not only the first position detection element 322 and the second position detection element 422, but may also include others. The detection component detects the relative position of the first housing 30 and the second housing 40. This detection is not limited to the interaction between the magnetic component and the Hall sensor, or the magnetic component and the proximity sensor; other interactions, such as laser ranging, are also possible and will not be elaborated upon. Furthermore, the configuration of the detection component can differ, and it can be installed on the first housing 30 and / or the second housing 40.

[0081] It is understood that the terms "first position detection element", "second position detection element" and "position detection element" can be interchanged. For example, in some embodiments, "first position detection element" can also be called "second position detection element" and "second position detection element" can also be called "first position detection element".

[0082] The top plate 45 and the third side plate 44 are spaced apart to allow for the installation of rollers 46 between them. The top plate 45 may include a plurality of side-by-side strip support plates 451. A second camber 402 is provided between two adjacent strip support plates 451 to allow space for the first housing 30, such as the strip support wall 351. In some embodiments, the second camber 402 communicates with the accommodating space 301 to further reduce the thickness of the electronic device 200.

[0083] It is understood that the terms "first caulking", "second caulking" and "caulking" can be interchanged. For example, in some embodiments, "first caulking" can also be called "second caulking", and "second caulking" can also be called "first caulking".

[0084] In one embodiment, the width of the second caulking 402 is the same as the width of the strip support wall 351, or the width of the second caulking 402 is greater than the width of the strip support wall 351, so that the strip support wall 351 slides in the extension direction of the second caulking 402 when the first housing 30 and the second housing 40 slide relative to each other.

[0085] In one embodiment, the width of the strip support plate 451 is the same as the width of the first caulking 302, or the width of the strip support plate 451 is less than the width of the first caulking 302, so that the strip support plate 451 slides in the extending direction of the first caulking 302 when the first housing 30 and the second housing 40 slide relative to each other.

[0086] Roller 46 is located between top plate 45 and third side plate 44, and is rotatably connected to first side plate 42 and second side plate 43. In one embodiment, the axial direction of roller 46 is perpendicular to the direction in which the first housing 30 and the second housing 40 slide relative to each other.

[0087] Please see Figure 5 , Figure 7 and Figure 8 , Figure 7 for Figure 5 A diagram showing the state of the first housing 30 and the second housing 40 sliding relative to each other in one embodiment. Figure 8 for Figure 5 The diagram shows the state of the first housing 30 and the second housing 40 sliding relative to each other in one embodiment. The bottom plate 41, first side plate 42, second side plate 43, and top plate 45 of the second housing 40, located away from the third side plate 44, can be inserted into the receiving space 301 on the side of the bottom wall 31 of the first housing 30 away from the third side wall 34. This allows the first sliding part 321 and the second sliding part 421 to be installed together, enabling the first housing 30 and the second housing 40 to slide through the first sliding part 321 and the second sliding part 421. A strip-shaped support wall 351 is located within the second caulking 402, and a strip-shaped support plate 451 is located within the first caulking 302. When the first housing 30 and the second housing 40 slide relative to each other, the strip-shaped support wall 351 slides in the extending direction of the second caulking 402, and the strip-shaped support plate 451 also slides in the extending direction of the first caulking 302.

[0088] That is, the second housing 40 can move relative to the first housing 30 toward the side closer to the third sidewall 34 or toward the side farther away from the third sidewall 34.

[0089] When the first housing 30 and the second housing 40 slide relative to each other, the first radiator 10 slides relative to the second housing 40. The first position detection element 322 and the second position detection element 422 cooperate to detect the relative sliding position of the first housing 30 and the second housing 40 through the circuit board, such as the control unit.

[0090] Understandably, the second housing 40 can move relative to the first housing 30 towards the third sidewall 34, causing the antenna performance of the first radiator 10 to be reduced due to the influence of the second housing 40 and its internal electronic components. The relative position between the first housing 10 and the second housing 20 is related to the influence on the first radiator 10. Therefore, when the first housing 30 and the second housing 40 slide relative to each other, the first radiator 10 slides relative to the second housing 40. The first position detection element 322 and the second position detection element 422 cooperate to detect the relative sliding position of the first housing 30 and the second housing 40 through the main circuit board, such as the control unit. This indirectly detects the degree of influence of the second housing 40 and its internal electronic components on the antenna performance of the antenna assembly 100. The main circuit board, such as the control unit, can adjust the matching circuit, such as the first matching circuit 14, based on the relative sliding position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is at its optimal state. In a further embodiment, the tuning control circuit, such as the first tuning control circuit and the second tuning control circuit, can be adjusted according to the relative sliding position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is in the optimal state, so as to reduce the influence of the second housing 40 and its internal electronic components on the first radiator 10.

[0091] Using simulation software to Figure 4 , Figure 5 , Figure 7 and Figure 8 In the illustrated embodiment, the antenna assembly 100 performs corresponding antenna performance testing. One embodiment can be found [reference needed]. Figure 9 and Figure 10 , Figure 9 for Figure 8 The return loss curve of the antenna assembly 100 in one embodiment. Figure 10 for Figure 7The return loss curve of the antenna assembly 100 in one embodiment is shown. When the first housing 30 and the second housing 40 slide relative to each other, the first radiator 10 is affected differently by the second housing 40. After being affected by the second housing 40, the matching circuit, such as the first matching circuit 14, is adjusted according to the relative sliding position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is in an optimal state. In a further embodiment, the tuning control circuit, such as the first tuning control circuit and the second tuning control circuit, can be adjusted according to the relative sliding position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is in an optimal state, thereby reducing the influence of the second housing 40 and its internal electronic components on the first radiator 10. Figure 9 The return loss corresponding to the frequency of 0.75 GHz in the mid-to-low frequency band is -12.3 dB. Figure 10 The return loss corresponding to a frequency of 0.75 GHz in the mid-to-low frequency band is -20 dB. It is evident that the circuit board, such as the control unit, can adjust the antenna performance of the antenna assembly 100 to its optimal state based on the relative sliding position of the first housing 30 and the second housing 40.

[0092] Please see Figure 5 and Figure 11 , Figure 11 for Figure 5 The diagram shows a cross-sectional view of the electronic device 200. The flexible display screen 50 has a display surface and a non-display surface, displaying information on the display surface side and disposed on the non-display surface side on a first housing 30 and a second housing 40. The flexible display screen 50 can be bent towards the non-display surface side to achieve folding, forming a first folding portion 51, a second folding portion 52 opposite to the first folding portion 51, and a bending portion 53 connecting the first folding portion 51 and the second folding portion 52. The surface of the first folding portion 51 away from the second folding portion 52 is the display surface. The surface of the second folding portion 52 away from the first folding portion 51 is also the display surface. The first folding portion 51 can be disposed on the surface of the first housing 30, for example, the top wall 35 away from the bottom wall 31. The bending portion 53 can be mounted on a roller 46, and the second folding portion 52 can be placed within a receiving space 401. The side of the bending portion 53 away from the roller 46 is the display surface.

[0093] When the first housing 30 and the second housing 40 slide relative to each other, the second folded portion 52 of the flexible display screen 50 gradually slides out from the receiving space 401 to increase the display area of ​​the first folded portion 51. When the first housing 30 and the second housing 40 slide relative to each other, the first folded portion 51 of the flexible display screen 50 extends into the receiving space 401 to reduce the display area of ​​the first folded portion 51.

[0094] Please see Figure 12 and Figure 13 , Figure 12 for Figure 4 The schematic diagram of the structure of the electronic device 200 in another embodiment is shown. Figure 13 for Figure 12 An exploded view of the second housing 40. The second radiator 20 of the antenna assembly 100 is disposed on the second housing 40. The antenna assembly 100, for example, the first radiator 10 and the second radiator 20, can be electrically connected to a circuit board such as a control unit or a battery to achieve antenna performance. The stub length A of the coupling between the first radiator 10 and the second radiator 20 can be adjusted to decrease or increase in response to the relative sliding of the first housing 30 and the second housing 40. This enables different antenna performances of the antenna assembly 100, ensuring that the antenna assembly 100 operates in optimal condition at all times, thereby improving the overall communication capability of the electronic device 200.

[0095] In some embodiments, a second radiator 20 is disposed on a side panel, such as a second side panel 43. In some embodiments, the second radiator 20 may be disposed in the extending direction of the side panel, such as the second side panel 43. It is understood that the second radiator 20 extends toward the third side panel 44 to be disposed on the third side panel 44.

[0096] In some embodiments, when the second position detection element 422 is a magnetic element, it is preferably disposed on the first side plate 42 to reduce the impact of the second position detection element 422 on the antenna performance of the first radiator 10 and the second radiator 20.

[0097] Please see Figure 14 and Figure 15 , Figure 14 for Figure 12 A diagram showing the state of the first housing 30 and the second housing 40 sliding relative to each other in one embodiment. Figure 15 for Figure 12 The diagram illustrates the state of the first housing 30 and the second housing 40 when they slide relative to each other in one embodiment. When the first housing 30 and the second housing 40 slide relative to each other, the first radiator 10 and the second radiator 20 also slide relative to each other. The first position detection element 322 and the second position detection element 422 cooperate to detect the relative sliding position of the first housing 30 and the second housing 40 through a circuit board, such as a control unit, thereby indirectly detecting the stub length A. The circuit board, such as the control unit, can adjust the matching circuit, such as the first matching circuit 14 and the second matching circuit 24, based on the stub length A to ensure that the antenna performance of the antenna assembly 100 is in an optimal state. In a further embodiment, the tuning control circuit, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, can be adjusted according to the stub length A to ensure that the antenna performance of the antenna assembly 100 is in an optimal state.

[0098] In one embodiment, the second housing 40 is movable relative to the first housing 30 to the side away from the third sidewall 34 to disrupt the distributed capacitive coupling structure between the first radiator 10 and the second radiator 20, thereby enabling the first radiator 10 in the antenna assembly 100 to operate.

[0099] In one embodiment, the second housing 40 can move relative to the first housing 30 towards the side closer to the third sidewall 34, causing the antenna performance of the first radiator 20 to be reduced due to the influence of the second housing 40 and its internal electronic components. However, the distributed capacitive coupling structure between the first radiator 10 and the second radiator 20 also extends the mid-to-high frequency bandwidth, improving antenna performance. Furthermore, by adjusting matching circuits such as the first matching circuit 14 and the second matching circuit 24, the antenna performance of the antenna assembly 100 can be optimized. In a further embodiment, the tuning control circuits, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, can be adjusted according to the stub length A to optimize the antenna performance of the antenna assembly 100, thereby reducing the influence of the second housing 40 and its internal electronic components on the first radiator 10.

[0100] Understandably, the connection between the first housing 30 and the second housing 40 is not limited to a sliding connection. It can also be other connection methods. For example, please refer to... Figure 16 , Figure 16 for Figure 4The illustrated embodiment shows a schematic diagram of the electronic device 200 in another embodiment. The electronic device 200 may include a housing assembly for mounting the antenna assembly 100 and a display screen 50 disposed on the housing assembly. The housing assembly may include a first housing 30, a second housing 40, and a folding portion 60 connecting the first housing 30 and the second housing 40. The housings in the housing assembly are not limited to the first housing 30 and the second housing 40; they may also include a third housing, a fourth housing, a fifth housing, etc. Furthermore, there may be multiple folding portions 60 in the housing assembly, so that two connected housings, such as the first housing 30 and the second housing 40, or the third housing and the fourth housing, can be connected by a folding portion 60 to form the housing assembly. The folding portion 60 allows the two connected housings, such as the first housing 30 and the second housing 40, to be folded for storage, and also allows the two connected housings, such as the first housing 30 and the second housing 40, to be unfolded to support the display screen 50. When the two housings, such as the first housing 30 and the second housing 40, are folded, the electronic device 200 can be folded and stored. The first housing 30 and the second housing 40 are fixedly connected by a folding portion 60, so that the first housing 30 and the second housing 40 can be folded together by folding the folding portion 60. The first radiator 10 provided on the first housing 30 and the second radiator 20 provided on the second housing 40 can be referred to the above embodiments.

[0101] The first radiator 10 and the second radiator 20 can change position when the first housing 30 and the second housing 40 are closed or unfolded, thereby affecting the antenna performance of the antenna assembly 100. Furthermore, the matching circuit, such as the first matching circuit 14 and the second matching circuit 24, is adjusted according to the relative position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is optimal. For example, when the operating frequency band of the antenna assembly 100 deviates from the target frequency band, the matching circuit, such as the first matching circuit 14 and the second matching circuit 24, is adjusted according to the stub length A so that the operating frequency band of the antenna assembly 100 is at the target frequency band at this time. In a further embodiment, the tuning control circuit, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, can be adjusted according to the relative position of the first housing 30 and the second housing 40 to ensure that the antenna performance of the antenna assembly 100 is optimal. For example, when the operating frequency band of the antenna assembly 100 deviates from the target frequency band, the tuning control circuit, such as the first tuning control circuit, the second tuning control circuit, the third tuning control circuit, and the fourth tuning control circuit, is adjusted so that the operating frequency band of the antenna assembly 100 is the target frequency band.

[0102] The following describes an electronic device; please refer to [link / reference]. Figure 17 , Figure 17This is a schematic diagram illustrating the structural composition of an electronic device 300 according to one embodiment of this application. The electronic device 300 can be a mobile phone, tablet computer, laptop computer, or wearable device, etc. This embodiment uses a mobile phone as an example. The structure of the electronic device 300 may include an RF circuit 310 (which may include the antenna assembly 100 in the above embodiment), a memory 320, an input unit 330, a display unit 340 (i.e., the flexible display screen 50 in the above embodiment), a sensor 350 (which may include the first position detection element 322 and the second position detection element 422 in the above embodiment), an audio circuit 360 (which may include the flexible display screen 50 in the above embodiment), a Wi-Fi module 370, a processor 380, and a power supply 390, etc. The RF circuit 310, memory 320, input unit 330, display unit 340, sensor 350, audio circuit 360, and Wi-Fi module 370 are all connected to the processor 380. The power supply 390 provides power to the entire electronic device 300.

[0103] Specifically, the RF circuit 310 is used to transmit and receive signals. The memory 320 is used to store data instruction information. The input unit 330 is used to input information, and may specifically include a touch panel 331 and other input devices 332 such as operation buttons. The display unit 340 may include a display panel 341 (i.e., the flexible display screen 50 in the above embodiment). The sensor 350 includes infrared sensors, laser sensors, etc., used to detect user proximity signals, distance signals, etc. The speaker 361 and the microphone (or receiver assembly) 362 are connected to the processor 380 through the audio circuit 360 for transmitting and receiving sound signals. The Wi-Fi module 370 is used to receive and transmit Wi-Fi signals. The processor 380 is used to process data information of the electronic device.

[0104] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An electronic device, characterized in that, include: A first housing and a second housing, wherein the first housing and the second housing are movable relative to each other to enable the first housing and the second housing to unfold or retract; Antenna assembly, the antenna assembly comprising: A first radiator is disposed on the first housing and has a first end, a second end and a feed point. The feed point is electrically connected to a first matching circuit, which is used to receive excitation signals. A second radiator, disposed on the second housing, forms a distributed capacitive coupling structure with the first radiator. When the first and second housings move relative to each other, the relative movement of the first and second radiators causes a change in the length of the branches through which the first and second radiators are coupled. A control unit, electrically connected to the antenna assembly, is used to adjust the first matching circuit according to the stub length to adjust the operating frequency band of the antenna assembly to the target frequency band.

2. The electronic device according to claim 1, characterized in that, The electronic device also includes: A detection component is disposed on the first housing and / or the second housing. The detection component is used to detect the length of the branch. The detection component is electrically connected to the control unit. The control unit is used to receive the detection information from the detection component in order to adjust the first matching circuit according to the detection information.

3. The electronic device according to claim 2, characterized in that, The detection component includes: A magnetic component is disposed on one of the first housing and the second housing; and A Hall sensor, disposed on the other of the first housing and the second housing, is electrically connected to the control unit and is used to detect the length of the branch.

4. The electronic device according to claim 1, characterized in that, The second radiator is provided with a third end, a fourth end, and a grounding point. The grounding point is electrically connected to a second matching circuit, which is used for grounding. The control unit is used to adjust the first matching circuit and / or the second matching circuit when the stub length changes, so as to adjust the operating frequency band of the antenna assembly to the target frequency band.

5. The electronic device according to any one of claims 1-4, characterized in that, The first housing and the second housing are slidably connected so that the second housing can slide into or out of the first housing.

6. The electronic device according to claim 5, characterized in that, The first housing includes: bottom wall; A top wall, disposed opposite to the bottom wall, forming an accommodating space between them; and The first sidewall and the second sidewall are connected to the bottom wall and the top wall and are disposed opposite to each other. The accommodating space is located between the first sidewall and the second sidewall. The second housing is located between the first sidewall and the second sidewall and is slidably connected to the first housing. The first radiator is at least partially disposed on the first sidewall.

7. The electronic device according to claim 6, characterized in that, The second housing includes: Base plate; A top plate, disposed opposite to the bottom plate, forming an accommodating space between them; and The first side plate and the second side plate are connected to the bottom plate and the top plate and are arranged opposite to each other. The accommodating space is located between the first side plate and the second side plate. The bottom plate is arranged opposite to the bottom wall, and the top plate is arranged opposite to the top wall. The first side plate and the second side plate are located between the first side wall and the second side wall.

8. The electronic device according to claim 7, characterized in that, Both the first side plate and the second side plate are provided with a first sliding part outside the accommodating space, and both the first side wall and the second side wall are provided with a second sliding part inside the accommodating space. The first sliding part on the first side plate is slidably connected to the second sliding part on the first side wall, and the first sliding part on the second side plate is slidably connected to the second sliding part on the second side wall.

9. The electronic device according to claim 5, characterized in that, The second housing is provided with rollers, and the electronic device further includes: A flexible display screen is disposed at least on the first housing and the roller. When the second housing and the first housing slide relative to each other, the flexible display screen slides on the roller until at least part of the flexible display screen is located outside the second housing, or slides on the roller until part of the flexible display screen is located inside the second housing. The flexible display screen bends in a portion corresponding to the roller to contact the surface of the roller.

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