Electronic equipment

Abstract

The utility model provides electronic equipment, and the electronic equipment comprises a knob body which is disposed in a housing of the electronic equipment; the antenna is used for transmitting and / or receiving signals of the electronic equipment, and the antenna is arranged at the knob body; and the control circuit is electrically connected with the knob body and is used for adjusting the performance of the antenna according to the rotation angle when the knob body rotates.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer, in particular to an electronic device. BACKGROUND

[0002] There are electronic devices provided with antennas in the art. In the existing electronic devices, in order not to affect the appearance of the product, the antenna is often in the form of built-in. However, the built-in antenna is often affected by other structures of the electronic device, and has poor radiation performance. In addition, the built-in antenna has certain requirements for clearance and height, and the product needs to increase the size to meet these requirements, resulting in that the product size is too large and the product cost is increased. Therefore, there is an urgent need in the art for an electronic device, which has an antenna with good radiation performance and does not significantly increase the size of the electronic device. SUMMARY

[0003] Therefore, the present application is committed to providing an electronic device, which has an antenna with good radiation performance and does not significantly increase the size of the electronic device.

[0004] In one aspect, the present application provides an electronic device, comprising: a knob body, the knob body is arranged on a shell of the electronic device; an antenna, the antenna is used for signal transmission and / or reception of the electronic device, and the antenna is arranged at the knob body; a control circuit, the control circuit is electrically connected with the knob body, and is used for adjusting the performance of the antenna according to the rotation angle when the knob body rotates.

[0005] According to the present application, the antenna is arranged at the knob body of the electronic device. Since the knob body needs to be seen by the user and operated by hand, the knob body is usually (at least partially) exposed outside the electronic device. At this time, if the antenna is arranged in the knob body, the antenna can have a large clearance and height, thereby producing a good antenna radiation effect. In addition, since the antenna is arranged at the knob body, the arrangement of the antenna does not affect the appearance of the electronic device product, and does not significantly increase the volume of the electronic device.

[0006] In a possible implementation manner of the present application, the electronic device comprises a headset assembly, the headset assembly comprises a headset and a headset box, and the headset box is provided with the knob body.

[0007] In a possible implementation manner of the present application, the electronic device is a mobile phone, and the knob body is arranged on the back cover of the mobile phone; or the electronic device is a headset box.

[0008] In a possible implementation manner of the present application, the knob body is further used for adjusting the volume of the electronic device by the user.

[0009] In a possible implementation of the present application, the electronic device further comprises an encoder for emitting the adjusted antenna signal, the encoder is arranged in the shell and is electrically connected to the antenna for feeding the antenna.

[0010] In a possible implementation of the present application, the encoder is arranged below the knob body, the rotation shaft of the knob body is inserted into the inner hole of the encoder, and the user rotates the knob body to control the encoder.

[0011] In a possible implementation of the present application, the knob body is electrically connected to the SOC of the earphone box, when the SOC detects that the signal strength received by the earphone box from the paired device is lower than a threshold, the earphone assembly reminds the user to operate the knob body to increase the gain of the power amplifier, so as to increase the signal strength of the sound emitted by the earphone box.

[0012] In a possible implementation of the present application, the SOC judges the signal strength received by the earphone box by detecting the strength of the RSSI signal.

[0013] In a possible implementation of the present application, the control circuit is in communication connection with the earphone, for increasing the power of the antenna when the earphone is in a call state. In a possible implementation of the present application, the knob body comprises a dialing key or a pressing key. BRIEF DESCRIPTION OF DRAWINGS

[0014] Hereinafter, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings, in which:

[0015] Figure 1 Fig. 1 shows a structural schematic diagram of an electronic device according to an embodiment of the present application;

[0016] Figure 2 Fig. 2 shows an appearance structural schematic diagram of an electronic device according to an embodiment of the present application;

[0017] Figure 3 Fig. 3 shows an internal structural schematic diagram of an electronic device according to an embodiment of the present application; Figure 2

[0018] Figure 4 Fig. 4 shows a partial structural schematic diagram of an electronic device according to an embodiment of the present application; Figure 2

[0019] Figure 5 Fig. 5 shows a connection relationship schematic diagram of related components of an electronic device according to an embodiment of the present application;

[0020] Figure 6 Fig. 6 shows an antenna performance comparison schematic diagram of an electronic device according to an embodiment of the present application and an electronic device of the prior art in a hand model state;

[0021] Figure 7 ​​FIG. 1 shows a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the concept and thought of the present application more clear to those skilled in the art, the present application is described in detail below in combination with specific embodiments. It should be understood that the embodiments given herein are only a part of all the embodiments that the present application can have. Those skilled in the art can make improvements, modifications or replacements to some or all of the following embodiments after reading the description of the present application, and these improvements, modifications or replacements are also included in the scope of protection of the present application.

[0023] In the present document, the terms "one", "a" and other similar words are not intended to mean that there is only one of the mentioned things, but that the relevant description is only directed to one of the mentioned things, which can have one or more. In the present document, the terms "contain", "include" and other similar words are intended to mean logical interrelation, and cannot be regarded as indicating spatial structural relation. For example, "A includes B" is intended to mean that B logically belongs to A, and does not mean that B is located inside A in space. In addition, the meaning of the terms "contain", "include" and other similar words should be regarded as open, rather than closed. For example, "A includes B" is intended to mean that B belongs to A, but B does not necessarily constitute all of A, and A can also include C, D, E and other elements.

[0024] In the present document, the terms "first", "second" and other similar words are not intended to imply any order, quantity and importance, but are only used to distinguish different elements. In the present document, the terms "embodiment", "the present embodiment", "an embodiment", "one embodiment" do not mean that the relevant description is only applicable to one specific embodiment, but that the description can also be applicable to another one or more embodiments. Those skilled in the art should understand that any description made herein for a certain embodiment can be replaced, combined or otherwise combined with the relevant description in another one or more embodiments, and the new embodiments resulting from the replacement, combination or other combination are easily thought of by those skilled in the art and are within the scope of protection of the present application.

[0025] In embodiments of the present application, the electronic device can refer to a device that utilizes electronic technology principles to achieve a specific function, and mainly realizes its functions based on electronic motion and control. The electronic device is connected by numerous electronic elements through a circuit to form a complex electronic system, thereby realizing various different functions. These electronic elements can be various electronic elements built on the basis of semiconductor materials (such as silicon), such as transistors, diodes, etc. These elements can control the flow of electrons to achieve basic functions such as signal amplification, rectification, etc. In some embodiments of the present application, the electronic device includes common personal consumer electronics, such as mobile phones, computers, smart watches, vehicle-mounted terminals, etc. It also includes industrial automation control devices, and various precision instruments in the field of scientific research, etc.

[0026] Current TWS (True Wireless Stereo) earphones or headsets, sound equipment, etc., in order to achieve ID (Industrial Design) performance, usually have an antenna built-in, realized by FPC (Flexible Printed Circuit) or LDS (Laser Direct Structuring) and other methods. Such built-in antennas are affected by other metal devices inside the whole machine, have poor radiation environment, and result in low radiation performance. When FPC and LDS are used, an additional antenna support is generally needed, which increases the cost of the whole machine. The requirements for clearance and height of the built-in antenna also increase the size of the product, which deviates from the original intention of product miniaturization. The existing solutions generally use FPC, LDS, and antenna support, or PCBA (Printed Circuit Board Assembly) on-board antenna.

[0027] In some embodiments of the present application, a new intelligent earphone antenna solution is used, in which a metal knob on the appearance structure of the earphone is used as part of the antenna, without the need for additional FPC / LDS antenna, thereby saving costs and reducing product size. The metal knob antenna is located outside the whole machine, avoiding the influence of the PCBA and battery inside the whole machine on the antenna, thereby improving the performance of the antenna. At the same time, the gain of the built-in PA (Power Amplifier) is adjusted by rotating the knob to start the high-performance mode, thereby achieving active signal enhancement and improving performance in a weak signal environment.

[0028] In some embodiments of the present application, a new antenna system is constructed to solve the problems of large space occupation and low performance of existing antenna solutions, while saving costs and improving appearance performance.

[0029] In some embodiments of the present application, the knob of the machine itself is used as an antenna, saving the space of the original built-in antenna and reducing the product size. Compared with the built-in antenna, the performance of the knob antenna is improved, and the cost is saved. The PA gain is adjusted through the knob, and the signal is actively adjusted and enhanced in a poor signal scenario, improving the user experience.

[0030] In some embodiments of the present application, the metal knob for adjusting the volume is used as an antenna, which changes the original built-in antenna into an external antenna, avoiding the influence of internal devices such as batteries, PCBA, etc. on the antenna, and improving the performance of the antenna. At the same time, using the existing metal parts as antennas saves the antenna FPC, antenna bracket, and antenna contact spring, reducing the overall cost. Generally, the built-in antenna has high requirements for clearance and size (for example, the BT (BlueTooth, Bluetooth) antenna of the PCB, the clearance requirement is generally 25*7mm). After using the metal knob as an antenna, these sizes can be saved, which is of great advantage to the miniaturization of the overall size.

[0031] Figure 1 A structural schematic diagram of an electronic device according to an embodiment of the present application is shown.

[0032] As shown in Figure 1 In this embodiment, the electronic device 100 includes a knob body 110, the knob body 110 is arranged on the shell of the electronic device 100; an antenna 120, the antenna 120 is used for signal transmission and / or reception of the electronic device 100, the antenna 120 is arranged at the knob body 110; a control circuit, the control circuit is electrically connected with the knob body 110, and is used for adjusting the performance of the antenna 120 according to the rotation angle when the knob body 110 rotates.

[0033] According to the present embodiment, the shell of the electronic device 100 is provided with the knob body 110 for user operation. The knob body 110 or the button can refer to a kind of human-computer interaction device, which is usually a small, operable (operation mode includes pressing, rotating, touching, etc.) component, with various shapes, such as circular, square, strip, etc., and different materials, including plastic, metal, rubber, etc. The knob body 110 is a key entrance for the user to convey instructions to the device. When the user operates the knob body 110, the mechanical structure or electronic elements inside the knob body 110 will change accordingly, and then the user's operation intention will be converted into an electrical signal and transmitted to the control system of the device, so that the device performs corresponding functions, such as turning on, turning off, switching mode, adjusting volume, etc. In an embodiment, the knob body 110 only refers to the knob body with physical entity. The knob body 110 has a hollow structure inside, in which, in addition to the structure of the knob body 110 itself (such as shaft, etc.), there is also space to install the antenna 120.

[0034] According to the embodiment, the antenna 120 can be a device for signal transceiving, which has various forms, and common forms include a rod shape, a sheet shape, a spiral shape, etc., and the material is mostly metal, such as copper, aluminum, etc. The good conductivity of the metal helps the transmission of signals. The antenna 120 is a bridge connecting spatial electromagnetic waves and circuit signals in a communication system. When used for transmitting signals, it converts high-frequency electrical signals from a transmitter into electromagnetic waves in space and radiates them in a specific direction. The intensity and directivity of the radiation determine the range and effect of signal transmission. When receiving signals, the antenna 120 is responsible for capturing electromagnetic waves in space, converting them into electrical signals, and transmitting them to the receiver for subsequent processing. Its performance, such as gain, bandwidth, directivity, etc., directly affects the communication quality and determines whether the signal is stable, clear, and the transmission distance.

[0035] According to the embodiment, the antenna 120 is arranged in the knob body 110, which can mean that the antenna 120 is arranged in the internal space wrapped by the shell of the knob body 110, or the antenna 120 can form all or part of the structure of the knob body 110, for example, the shell of the knob body 110 itself can serve as an antenna.

[0036] Figures 2 to 4 A structural schematic diagram of an electronic device according to an embodiment of the present application is shown. Among them, Figure 2 A structural schematic diagram of an electronic device according to an embodiment of the present application is shown, Figure 3 A structural schematic diagram of an electronic device according to Figure 2 An internal structural schematic diagram of an electronic device according to an embodiment of the present application is shown, Figure 4 An internal structural schematic diagram of an electronic device according to Figure 2 A partial structural schematic diagram of an electronic device according to an embodiment of the present application is shown.

[0037] As Figure 2 shown, in the embodiment, the electronic device 200 includes a headset assembly, which includes a headset and a headset box 210, and the headset box 210 is provided with a knob body 220. According to the embodiment, the headset assembly is a typical electronic device that needs to be provided with an antenna. In order to realize wireless communication between the headset and the headset box, an antenna needs to be arranged on the headset box. At the same time, in order to facilitate carrying, the headset box needs to be miniaturized as much as possible. By arranging the antenna in the knob body (for example, for adjusting the volume) of the headset box, the antenna of the headset box can have good radiation performance, while avoiding causing the size of the headset box to be too large.

[0038] It should be known by those skilled in the art that the knob antenna scheme carrier of the embodiment of the present application is not limited to the TWS headset box (or charging box), and similar headsets, smart speakers, mobile phones, and other communication devices are also applicable.

[0039] According to the embodiment, the earphone assembly is, for example, a TWS earphone assembly, which includes two in-ear earphones and an earphone box (or charging box). In the earphone assembly, the earphone box 210 is used for wireless communication with a paired device, and wireless communication is also performed between the earphone box 210 and the earphones. The paired device sends a sound signal to the earphone box 210, and the earphone box 210 sends the sound signal to the earphones. Therefore, the wireless communication function of the earphone box 210 needs to be supported by an antenna. Since the earphone box 210 has the demand and trend of miniaturization, it is desirable that the antenna does not occupy the space of the earphone box 210 as much as possible. Considering that the earphone box 210 can be provided with a rotary knob body 220, the antenna is arranged in the rotary knob body 220, which can save the space in the earphone box 210 and make the antenna have better radiation performance.

[0040] In the embodiment, the rotary knob body 220 includes a rotary knob body, which is also used for a user to adjust the volume of an electronic device. According to the embodiment, the electronic device usually has a rotary knob body for adjusting the volume. Such a rotary knob body is often arranged outside the electronic device and has a large volume, which is convenient for arranging an antenna therein.

[0041] According to the embodiment, the rotary knob body can be a physical rotary knob body that can be rotated or twisted by a user with hands. The rotary knob body is usually cylindrical or strip-shaped, and the user can push the edge or body of the rotary knob body to operate the rotary knob body. The rotary knob body has a large volume and a circular symmetric structure, and thus is particularly suitable for arranging an antenna.

[0042] According to the embodiment, the antenna utilizes the circular symmetric structure of the rotary knob in the structural design. Even when the rotation is performed for PA gain amplification, the shape and directivity of the antenna itself do not change.

[0043] In an embodiment, the rotary knob body 220 includes a dial lever key or a press key. According to the embodiment, the dial lever key and the press key are common forms of the rotary knob body. By arranging the antenna in the two keys, the technical solution of the present application has a more widely applicable scenario, which is conducive to the adoption of the technical solution of the present application in various electronic devices and improves the economic benefit of the technical solution of the present application.

[0044] According to the embodiment, the dial lever key and the press key also have a certain space inside and can be used to arrange an antenna. By popularizing the rotary knob body for arranging an antenna in the technical solution of the present application to the form of the dial lever key and the press key, the technical solution of the present application can be applied in a larger range, thereby generating higher economic benefits.

[0045] In the embodiment, the control circuit is electrically connected with the microphone, used for receiving the ambient noise signal detected by the microphone, and used for adjusting the power of the antenna according to the ambient noise signal. According to the embodiment, by arranging the microphone for detecting the ambient noise in the electronic device, the electronic device can automatically adjust the power of its antenna according to the size of the ambient noise, so that the electronic device can automatically adapt to various environments, and can ensure that the signal can be received in the case that the ambient noise is large, so as to ensure the communication effect of the electronic device.

[0046] According to the embodiment, the microphone for detecting the ambient noise can be arranged in the electronic device 200. When the ambient volume detected by the microphone is greater than the threshold value, it means that the background noise around the electronic device 200 or the user is large at this time, which is not conducive to listening to the sound in the earphone, therefore, the strength of the signal emitted by the electronic device 200 can be increased, so that the earphone can receive a stronger signal from the electronic device 200, so that the user can listen to the sound emitted by the earphone more stably and clearly, thereby offsetting the adverse effects of large ambient noise.

[0047] In the embodiment, the control circuit is in communication connection with the earphone, used for increasing the power of the antenna when the earphone is in the call state. According to the embodiment, when the earphone is in the call state, in order to ensure clear call, the user's requirement for the communication performance between the earphone and the earphone box 210 increases, so it is necessary to ensure that the signal transmission between the earphone and the earphone box 210 is more reliable and stable, which requires that the antenna power of the earphone box 210 is larger. By adjusting and increasing the antenna power when the earphone is in the call state, it can be ensured that the user can hear clear and stable sound when using the earphone to call, so as to feel better call effect and use experience.

[0048] In the embodiment, the electronic device 200 further comprises an encoder 218 for emitting the antenna adjusting signal, the encoder 218 is arranged in the shell, and the encoder 218 is electrically connected with the antenna to feed the antenna. According to the embodiment, the encoder is connected with the knob, used for emitting the antenna adjusting signal, so as to perform the function of adjusting the power of the antenna. When the antenna is arranged in the knob body, the antenna is fed by the encoder originally connected with the knob body, which can make full use of the original power supply structure of the electronic device, and avoid adding redundant elements as much as possible, so as to be beneficial to keep the original size of the electronic device, and avoid the size from being significantly increased.

[0049] According to the embodiment, in the earphone assembly, the encoder 218 is mainly responsible for converting the mechanical operation of the earphone box 210 by the user, such as opening and closing the box cover, adjusting the volume, and the like, into a digital signal. For example, when adjusting the volume, the operation of the relevant button or knob on the earphone box 210 by the user can also be accurately recognized and converted into a corresponding signal by the encoder 218, so as to realize the adjustment of the volume of the earphone. For another example, when the user opens or closes the earphone box 210, the encoder 218 can capture the change of the action and convert it into an electrical signal through an internal complex circuit and algorithm, and then transmit the electrical signal to the master control chip of the earphone box 210, so as to control the pairing, connection, and switching on and off of the earphone.

[0050] As shown in Figure 3 In the embodiment, the earphone box 210 is provided with a knob body 220, and the earphone box 210 includes an upper shell 211, an encoder small plate 212, an upper inner support 213, a lower inner support 214, a battery 215, a PCBA 216, and a lower shell 217.

[0051] According to the embodiment, the upper shell 211 and the lower shell 217 constitute the shell of the earphone box 210. The encoder small plate 212 is a circuit board on which the encoder 214 is mounted. The battery 215 is used to power the earphone box 210, and the battery 215 is a rechargeable battery that can be recycled. The PCBA 216 constitutes the mainboard of the earphone box 210. The upper inner support 213 and the lower inner support 214 are used to support the internal structure and internal components of the earphone box 210.

[0052] As shown in Figure 4 In the embodiment, the encoder 218 is arranged below the knob body, the rotating shaft 219 of the knob body is inserted into the inner hole of the encoder 218, and the user rotates the knob body to control the encoder 218. According to the embodiment, the knob body controls the encoder through the rotating shaft, and this control mode enables the knob body to control the function of the encoder only by rotating, simplifies the control mode of the encoder, and makes the control relationship between the knob body and the encoder simple and easy to implement.

[0053] According to the embodiment, the encoder 218 feeds the rotating shaft 219 of the knob by coupling power feeding or direct contact power feeding.

[0054] According to the embodiment, through the assembly combination of the knob and the encoder, on the one hand, the inner hole of the encoder can be used to feed the antenna of the shaft of the knob, and on the other hand, the knob drives the encoder to rotate when the knob rotates, and the encoder converts the mechanical action of the knob into an electrical signal.

[0055] Figure 5 A connection relationship schematic diagram of related components of an electronic device according to an embodiment of the present application is shown.

[0056] As shown in Figure 5In the embodiment, the knob body is electrically connected with the power amplifier of the earphone box for controlling the sound signal strength emitted by the earphone box, and the user controls the sound signal strength emitted by the earphone box by operating the knob body. In an embodiment, the PA is used to adjust the gain, and the PA can be arranged on the earphone box, the earphone body, the headphone, the sound equipment and the like, and the gain can be adjusted.

[0057] According to the embodiment, the power amplifier can be a key component for ensuring the audio output quality of the earphone, and mainly functions to amplify the low-power audio signal from the main control chip of the earphone box to provide sufficient driving power for the sound emitting unit of the earphone, so that the earphone can output sound with appropriate volume and clear sound quality.

[0058] In the embodiment, the knob body is electrically connected with the SOC (System On Chip) of the earphone box, and when the SOC detects that the signal strength received by the earphone box from the paired device is lower than a threshold value, the earphone assembly prompts the user to operate the knob body to increase the gain of the power amplifier, so as to increase the sound signal strength emitted by the earphone box. According to the embodiment, the SOC is an electronic component for realizing the main functions and control algorithms of the earphone box. The knob body is electrically connected with the SOC, so that the knob body can control and adjust the functions of the earphone box, so that the knob body has more functions. The SOC detects the strength of the signal received by the earphone box from the paired device, and determines whether the gain of the power amplifier of the earphone box needs to be adjusted at this time, so that the user can adjust the signal strength in time according to the prompt of the earphone assembly, ensure that the playing effect of the earphone is clear enough, and make the earphone assembly have better environmental adaptability and usability.

[0059] According to the embodiment, the SOC of the earphone box can be a highly integrated chip, which is responsible for managing the communication between the earphone box and the earphone, ensuring that the two can be quickly and stably connected and data transmitted; it also controls the charging process of the earphone box to the earphone, has a charging management function, and can realize overvoltage and overcurrent protection; at the same time, it also handles some state indication tasks, such as displaying the power and other states through the LED light.

[0060] According to the embodiment, the paired device can be an electronic device capable of establishing a connection with the earphone through wireless technology such as Bluetooth and performing data transmission and interaction, such as a mobile phone, a tablet computer, a smart watch and the like.

[0061] According to this embodiment, the power amplifier can be controlled via a knob to enhance signal strength in weak signal scenarios. The system detects the RSSI strength received from the mobile phone or other paired devices. When the RSSI strength is below a threshold, the SOC determines that the current signal situation is poor and prompts the user to operate the knob. The PA gain is adjusted by rotating the encoder, thereby amplifying the signal output. By adjusting the knob, a balance between signal enhancement and overall power consumption is achieved, resulting in optimal performance.

[0062] In this embodiment, the SOC determines the signal strength received by the headphone box by detecting the strength of the RSSI (Received Signal Strength Indication) signal. According to this implementation, the strength of the RSSI signal, as an indicator, directly reflects the signal strength received by the headphone box. By using the RSSI signal to characterize the signal strength received by the headphone box, mature technologies can be used to achieve both sensitivity and accuracy in signal strength determination.

[0063] According to this embodiment, the RSSI signal can help the earphone monitor the signal strength between the earphone and paired devices such as mobile phones in real time. By detecting the RSSI value, the earphone can determine whether the current connection is stable. If the RSSI value is too low, the earphone can try to adjust the connection strategy, such as adjusting the power amplifier or switching frequency bands, to maintain a stable connection.

[0064] like Figure 5 The diagram illustrates the logic block of a knob controlling the PA for gain amplification. When the SOC receives an RSSI report, it performs a threshold determination. When the RSSI is below the threshold, the system alerts the user that the signal is weak and the experience is poor, suggesting improvement by rotating the knob. The user then activates high-performance mode by rotating the knob to adjust the PA gain. During this process, the SOC continuously tracks and determines the RSSI report. When the PA gain amplifies and the RSSI exceeds the threshold, the system alerts the user that the signal is strong and adjustment of the knob can be stopped. This completes one round of signal gain control.

[0065] In this embodiment, the electronic device's circuitry mainly includes an RSSI detection circuit, a knob control circuit, and a PA amplification circuit. The RSSI detection circuit detects the received RSSI intensity and feeds it back to the SOC for threshold judgment. In the knob control circuit, the knob is connected to an encoder. When the knob rotates, the encoder converts the knob's rotation into an electrical signal, which is then sent to the SOC to confirm the PA adjustment factor. In the PA amplification circuit, the SOC, based on the detected knob electrical signal, controls the PA to perform corresponding gain amplification, thereby amplifying the overall signal.

[0066] Figure 6This diagram illustrates a comparison of the antenna performance of an electronic device according to an embodiment of this application and a prior art electronic device in a hand-shaped state.

[0067] like Figure 6 As shown, this diagram compares the performance of the knob-based antenna and the PCBA antenna in hand-mold mode. It can be seen that in hand-mold mode, the knob-based antenna outperforms the PCBA antenna.

[0068] In this embodiment, the "hand-mold state" refers to the state in which the electronic device (e.g., the earphone case of an earphone assembly) is held in the user's hand. In this state, the antenna performance is affected by the user's hand. As can be seen from the figure, in the hand-mold state, because the antenna in this embodiment is located in the knob body of the electronic device, it has better structural conditions for signal transmission and reception. Therefore, compared with existing electronic devices (whose antennas are, for example, in the form of PCBA antennas), it has better signal transmission and reception performance and antenna radiation performance.

[0069] Figure 7 A schematic diagram of the structure of an electronic device according to an embodiment of this application is shown.

[0070] like Figure 7 As shown, in this embodiment, the electronic device 700 is a mobile phone, and the knob body 710 is disposed on the back cover of the mobile phone.

[0071] According to this embodiment, mobile phones (especially smartphones) are also common electronic devices 700 that require antennas. Some mobile phones have a knob body 710, for example, located on the back cover of the phone, for performing specific functions, such as adjusting the volume. For mobile phones with knobs, placing an external antenna in the knob body 710 of the phone is beneficial to enhancing the antenna performance, increasing the antenna's radiation power by making it external, improving the phone's signal stability, and utilizing the existing structure without significantly increasing the size of the phone.

[0072] The concepts, principles, and ideas of this application have been described in detail above with reference to specific embodiments (including examples and instances). Those skilled in the art should understand that the embodiments of this application are not limited to those given above. After reading this application, those skilled in the art can make any possible improvements, substitutions, and equivalents to the steps, methods, apparatus, and components in the above embodiments, and such improvements, substitutions, and equivalents should be considered to fall within the scope of this application. The scope of protection of this application is limited to the claims.

Claims

1. An electronic device, comprising: The application relates to an electronic device (100) comprising: a knob body (110) arranged on a shell of the electronic device (100); an antenna (120) for signal transmission and / or reception of the electronic device (100), the antenna being arranged at the knob body (110); a control circuit electrically connected with the knob body (110) and used for adjusting performance of the antenna (120) according to a rotation angle when the knob body (110) is rotated.

2. The electronic device of claim 1, wherein, The electronic device (100) comprises an earphone assembly, the earphone assembly comprising an earphone and an earphone box (210), and the earphone box (210) is arranged with the knob body (110).

3. The electronic device of claim 1, wherein, The electronic device (100) is a mobile phone, and the knob body (110) is arranged on a back cover of the mobile phone; or the electronic device is an earphone box.

4. The electronic device of claim 1, wherein, The knob body (110) is also used for adjusting volume of the electronic device by a user.

5. The electronic device of claim 1, wherein, The electronic device (100) further comprises an encoder (218) for emitting an adjusted antenna signal, the encoder (218) being arranged on the shell and being electrically connected with the antenna (120) to feed the antenna (120).

6. The electronic device of claim 5, wherein, The encoder (218) is arranged below the knob body (110), a rotating shaft (219) of the knob body (110) is inserted into an inner hole of the encoder (218), and a user rotates the knob body (110) to control the encoder (218).

7. The electronic device of claim 2, wherein, The knob body (110) is electrically connected with an SOC of the earphone box (210), when the SOC detects that signal strength received by the earphone box (210) from a pairing device is lower than a threshold value, the earphone assembly reminds a user to operate the knob body (110) to increase gain of a power amplifier, so that signal strength of a sound signal emitted by the earphone box (210) is increased.

8. The electronic device of claim 7, wherein, The SOC is used for judging signal strength received by the earphone box (210) by detecting strength of an RSSI signal.

9. The electronic device of claim 2, wherein, The control circuit is communicatively connected with the earphone and used for increasing power of the antenna (120) when the earphone is in a call state.

10. The electronic device of claim 1, wherein, The knob body (110) comprises a dialing lever key or a pressing key.

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