Folding device

Abstract

The invention relates to folding equipment. The folding equipment comprises a first frame body and a second frame body, the rotating shaft is connected between the first frame body and the second frame body and can drive the first frame body to be folded or unfolded relative to the second frame body; the first detection module is located at a first included angle formed by connecting two adjacent edges in the first frame body; the second detection module is located at a second included angle adjacent to the first included angle in the first frame body; the first included angle and the second included angle are arranged far away from the rotating shaft; the first detection module and the second detection module are used for detecting the capacitance value of a capacitor formed between the first detection module and a holding object of the folding equipment. According to the embodiment of the invention, the specific absorption rate authentication requirement of the folding equipment in the folding state or the unfolding state can be met.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic devices, and in particular to a foldable device. Background Art

[0002] With the rapid development of electronic devices, foldable devices with bendable flexible screens have become the focus. In order to prevent users from receiving too much antenna radiation, existing foldable devices need to undergo Specific Absorption Rate (SAR) certification because they are equipped with different antennas. Foldable devices are different from non-foldable devices. The position of the antenna of a foldable device is different in different usage scenarios such as folded or unfolded states, which makes it difficult for foldable devices to trigger power fallback while the antenna is held. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a folding device.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a folding device, comprising at least:

[0005] A first frame and a second frame;

[0006] A rotating shaft, connected between the first frame body and the second frame body, and capable of driving the first frame body to fold or unfold relative to the second frame body;

[0007] A first detection module is located at a first angle formed by connecting two adjacent edges of the first frame;

[0008] A second detection module is located at a second angle adjacent to the first angle in the first frame; the first angle and the second angle are both arranged away from the rotating shaft;

[0009] The first detection module and the second detection module are used to detect the capacitance value of the capacitor formed between the folding device and the object being held.

[0010] In some embodiments, the first detection module includes a first antenna branch, and the second detection module includes a second antenna branch;

[0011] The first antenna branch is located at the first angle and is used to transmit and receive cellular mobile communication signals of the first frequency band and the second frequency band;

[0012] The second antenna branch is located at the second angle and is used to send and receive cellular mobile communication signals in the first frequency band and the third frequency band;

[0013] The center frequency of the first frequency band is smaller than the center frequency of the second frequency band; and the center frequency of the second frequency band is smaller than the center frequency of the third frequency band.

[0014] In some embodiments, the foldable device further includes a fifth antenna branch and a sixth antenna branch for transmitting and receiving wireless signals of different frequency bands;

[0015] The fifth antenna branch and the sixth antenna branch are spaced apart at a middle position between the first angle and the second angle, and the fifth antenna branch is disposed close to the second antenna branch, and the sixth antenna branch is disposed close to the first antenna branch.

[0016] In some embodiments, the fifth antenna branch is used to transmit and receive cellular mobile communication signals in the second frequency band;

[0017] The sixth antenna branch is used for sending and receiving Wi-Fi signals or Bluetooth signals.

[0018] In some embodiments, the folding device further comprises:

[0019] a third antenna branch, located on the first frame between the second antenna branch and the rotating shaft;

[0020] a seventh antenna branch, located on the first frame between the first antenna branch and the rotating shaft;

[0021] The third antenna branch and the seventh antenna branch are both used for transmitting and receiving wireless fidelity signals; or, for transmitting and receiving cellular mobile communication signals of the second frequency band and the third frequency band.

[0022] In some embodiments, the folding device further comprises:

[0023] The fourth antenna branch is located at the top of the foldable device and is spaced apart on the first frame between the second antenna branch and the third antenna branch, and is used for sending and receiving global positioning signals or wireless fidelity signals.

[0024] In some embodiments, the folding device further includes a third detection module and a fourth detection module, wherein the third detection module and the fourth detection module are used to detect the capacitance value of the capacitor formed between the folding device and the object being held;

[0025] Wherein, the third detection module includes a twelfth antenna branch, and the fourth detection module includes a ninth antenna branch;

[0026] The twelfth antenna branch and the ninth antenna branch are respectively located at two adjacent angles in the second frame away from the rotating shaft, and are both used for transmitting and receiving cellular mobile communication signals in the first frequency band.

[0027] In some embodiments, the folding device further comprises:

[0028] The tenth antenna branch and the eleventh antenna branch are arranged at intervals at a middle position between the third angle and the fourth angle adjacent to each other in the second frame, and the tenth antenna branch is arranged close to the ninth antenna branch, and the eleventh antenna branch is arranged close to the twelfth antenna branch, and the third angle and the fourth angle are both arranged away from the rotating shaft;

[0029] The tenth antenna branch and the eleventh antenna branch are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

[0030] In some embodiments, the folding device further comprises:

[0031] an eighth antenna branch, located on the second frame between the ninth antenna branch and the rotating shaft;

[0032] a thirteenth antenna branch, located on the second frame between the twelfth antenna branch and the rotating shaft;

[0033] The eighth antenna branch and the thirteenth antenna branch are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

[0034] In some embodiments, when the folding device is in the unfolded state, the first antenna branch and the ninth antenna branch are symmetrically arranged on both sides of the rotating shaft; and / or the second antenna branch and the twelfth antenna branch are symmetrically arranged on both sides of the rotating shaft.

[0035] In some embodiments, the first branch section of the first antenna branch and the second branch section of the second antenna branch are located on the same side of the first frame;

[0036] The length of the first branch segment and the length of the second branch segment are both greater than or equal to 30 mm.

[0037] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0038] The disclosed embodiment respectively sets the first detection module and the second detection module at the first angle and the second angle formed by connecting two adjacent edges of the folding device, and the first angle and the second angle are both set away from the rotating shaft; the first detection module and the second detection module are used to detect the capacitance value of the capacitor formed between the folding device and the object being held. In other words, the disclosed embodiment can detect the approach of the holding object based on the first detection module and the second detection module located at different angles and reduce the transmission power of the antenna close to the first detection module and the second detection module in the folding device, thereby meeting the requirements of the specific absorption rate certification of the folding device regardless of whether it is in the folded state or the unfolded state.

[0039] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0041] Figure 1 is a schematic diagram of an unfolded structure of a folding device according to an exemplary embodiment Figure 1 .

[0042] Figure 2 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment Figure 2 .

[0043] Figure 3 It is a schematic diagram of the structure of a folding device in a folding state according to an exemplary embodiment.

[0044] Figure 4 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment Figure 3 .

[0045] Figure 5 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment Figure 4 .

[0046] Figure 6 The figure is a schematic plan view of a folding device in an unfolded state according to an exemplary embodiment.

[0047] Figure 7 The figure is a schematic plan view of a folding state of a folding device according to an exemplary embodiment.

[0048] Figure 8 The figure is a schematic diagram of a usage scenario of a folding device according to an exemplary embodiment.

[0049] Fig. 9 The present invention is a horizontal screen diagram of a folding device in a folded state according to an exemplary embodiment.

[0050] Fig.10 is a comparison diagram of antenna performance of a folding device according to an exemplary embodiment.

[0051] Fig.11 The figure is a horizontal screen diagram of a foldable device in an unfolded state according to an exemplary embodiment.

[0052] Fig.12 The figure is a block diagram of a folding device according to an exemplary embodiment.

[0053] Figures 1 to 11 Middle: 10, first frame; 20, second frame; 30, rotating shaft; 601, insulating strip; 70, camera module;

[0054] 401, first detection module; 402, second detection module; 403, third detection module; 404, fourth detection module; 405, first detection chip; 406, second detection chip; 4001, first antenna branch; 4002, second antenna branch; 4003, third antenna branch; 4004, fourth antenna branch; 4005, fifth antenna branch; 4006, sixth antenna branch; 4007, seventh antenna branch; 4008, eighth antenna branch; 4009, ninth antenna branch; 4010, tenth antenna branch; 4011, eleventh antenna branch; 4012, twelfth antenna branch; 4013, thirteenth antenna branch; E, first branch segment; F, second branch segment. DETAILED DESCRIPTION

[0055] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of folding devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0056] In the related art, in order to prevent users from receiving excessive radiation energy and affecting their health when using electronic devices, the detection module is used to reduce the power of the signal when a human body is detected approaching, so as to ensure that the specific absorption rate value is below the threshold range. Usually, detection chips are respectively set at the bottom and top of the electronic device and connected to the corresponding detection body, or a detection chip is set and connected to the detection bodies at the bottom and top at the same time.

[0057] However, if the electronic device is a folding device, and the diagonal size of the folding device in the unfolded state is greater than 20 cm, the certification standard for the specific absorption rate is different from the certification standard for the folding device with a diagonal size less than 20 cm when unfolded. In addition, compared with non-folding devices, folding devices have many usage scenarios. How to satisfy the requirement that the antenna can be held while triggering power reduction in many usage scenarios is a problem faced by folding devices. Therefore, based on the above problems, the embodiments of the present disclosure propose a folding device that can meet the specific absorption rate requirements of the folding device in the folded state and the unfolded state.

[0058] Figure 1 is a schematic diagram of an unfolded structure of a folding device according to an exemplary embodiment Figure 1 , Figure 2 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment Figure 2 .like Figure 1 and Figure 2 As shown, the folding device comprises:

[0059] A first frame 10 and a second frame 20;

[0060] The rotating shaft 30 is connected between the first frame body 10 and the second frame body 20, and can drive the first frame body 10 to fold or unfold relative to the second frame body 20;

[0061] The first detection module 401 is located at a first angle formed by connecting two adjacent edges of the first frame body 10;

[0062] The second detection module 402 is located at a second angle adjacent to the first angle in the first frame 10; the first angle and the second angle are both arranged away from the rotating shaft 30;

[0063] The first detection module 401 and the second detection module 402 are used to detect the capacitance value of the capacitor formed between the folding device and the object being held.

[0064] In the disclosed embodiment, the folding device may include at least one main detection module, which is located at the angle formed by two adjacent edges of the first frame and is arranged away from the rotating axis; the at least one main detection module may include the above-mentioned first detection module and the second detection module.

[0065] Here, the folding device also includes at least one main antenna module, which is located at the edge of the first frame and is arranged close to the main detection module; when the main detection module detects that the capacitance value of the capacitance formed between the main detection module and the object held by the folding device is greater than a preset capacitance threshold, the transmission power of the main antenna module is reduced.

[0066] In the disclosed embodiment, at least one main antenna module includes: a first antenna module;

[0067] A first antenna module is arranged close to the first detection module and / or the second detection module;

[0068] When the first detection module and / or the second detection module detects that the capacitance value of the capacitance formed between the first detection module and the object being held by the folding device is greater than a preset capacitance threshold, the transmission power of the first antenna module is reduced.

[0069] Exemplarily, the folding device may include a mobile terminal device or a smart home device, etc. The mobile terminal device may include a mobile phone or a tablet computer; the smart home device may include a projection screen. The embodiments of the present disclosure are not limited to this.

[0070] The first frame and the second frame are located on both sides of the folding device, and the area of ​​the first frame and the area of ​​the second frame can be equal or unequal, which is not limited in the embodiments of the present disclosure. When the folding device is in an unfolded state, the first frame and the second frame are located on the same plane; when the folding device is in a folded state, the first frame covers the second frame, or the second frame covers the first frame.

[0071] Here, when the area of ​​the first frame body is equal to the area of ​​the second frame body, the occupied area of ​​the foldable device in the folded state is equal to half of the occupied area of ​​the foldable device in the unfolded state.

[0072] It should be noted that the folding device includes a first screen and a second screen formed in the unfolded state, the display area of ​​the first screen is larger than the display area of ​​the second screen, the screen set on the front of the first frame and the screen set on the front of the second frame constitute the first screen in the unfolded state of the folding device, the screen set on the back of the second frame is the second screen, and a camera is set on the back of the first frame.

[0073] The above-mentioned rotation of the rotating shaft can drive the first frame to rotate relative to the second frame, and the rotation angle controls the state of the folding device. When the rotating shaft rotates 0 degrees, the first frame and the second frame are located in the same plane, and the angle between the first frame and the second frame is 180 degrees. At this time, the folding device is in an unfolded state; when the rotating shaft rotates 90 degrees, the angle between the first frame and the second frame is 90 degrees, and the folding device is in a semi-folded state; when the rotating shaft rotates to 180 degrees, the angle between the first frame and the second frame is 0 degrees, and the planes where they are located are parallel to each other, and the folding device is in a folded state.

[0074] It should be noted that the rotating shaft is made of metal material, and the metal material includes liquid metal, which is not limited in the embodiments of the present disclosure.

[0075] The main detection module is located at the angle formed by connecting two adjacent edges in the first frame. Here, the first frame includes a first edge away from the rotation axis, a second edge adjacent to the first edge, a third edge adjacent to the first edge and opposite to the second edge, and an edge close to the rotation axis and opposite to the first edge. The first frame includes: a first angle formed by connecting the first edge and the second edge, and a second angle formed by connecting the first edge and the third edge.

[0076] In the embodiment of the present disclosure, there may be one or more main detection modules; when there is one main detection module, the main detection module may be located at the first angle or the second angle; when there are two main detection modules, the main detection modules may be located at the first angle and the second angle respectively.

[0077] In the disclosed embodiment, when the held object approaches the angle where the main detection module is located, capacitance is generated between the held object and the main detection module, and the main detection module detects the capacitance value between the held object and the held object, and transmits the capacitance value information to the folding device. That is, the main detection module can form capacitance between the held object and the held object, and can also detect the capacitance value of the capacitance.

[0078] Among them, the main detection module may include multiple detection modules, and the detection chips in different detection modules may be the same or different, which is not limited in the embodiments of the present disclosure.

[0079] The above-mentioned main antenna module is located at the edge of the first frame and is arranged close to the main detection module. Since the main detection module is located at the angle formed by two adjacent edges in the first frame, that is, when the main detection module is located at the first angle formed by the first edge and the second edge, the main antenna module is arranged at a position adjacent to the first edge and the main detection module, or at a position adjacent to the second edge and the main detection module, or respectively at a first edge position adjacent to the main detection module and a second edge position adjacent to the main detection module.

[0080] It should be noted that the main antenna module is used to send or receive electromagnetic wave signals, and the main antenna module can be set on the frame of the first frame, or serve as a conductive frame of the first frame. Exemplarily, when the main antenna module is set on the frame of the first frame, the main antenna module includes a built-in antenna, and the frame of the first frame is provided with a groove. The built-in antenna is located inside the groove. The built-in antenna includes a flexible circuit board antenna, a spring antenna, a ceramic patch antenna, etc., and the embodiments of the present disclosure are not limited to this. When the main antenna module serves as a conductive frame of the first frame, the main antenna module includes a metal frame antenna. By setting breakpoints on the metal frame, a variety of metal frame antennas can be designed. The metal frame antenna is made of materials such as titanium / aluminum alloy, stainless steel, and liquid metal. The embodiments of the present disclosure are not limited to this.

[0081] In the embodiment of the present disclosure, when the main detection module detects that the capacitance value of the capacitor formed between the folding device and the object holding the folding device is greater than a preset capacitance threshold, the transmission power of the main antenna module is reduced. Due to different standards for specific absorption rate certification, different capacitance thresholds are set for the capacitance value.

[0082] It should be noted that the closer the distance between the folding device and the held object, the greater the capacitance value of the capacitance detected by the main detection module and the held object, and the greater the specific absorption rate value generated to the held object. Therefore, when the capacitance value is greater than the preset capacitance threshold, it is necessary to reduce the transmission power of the main antenna module to reduce the radiation impact on the held object.

[0083] It can be understood that the folding device has a folded state or an unfolded state. When the holding object uses the folding device, the holding position is located at the first angle and / or the second angle of the first frame, and the main detection module is arranged at the first angle and the second angle. Therefore, the approach of the holding object can be detected, and the transmission power of the main antenna module arranged near the main detection module can be reduced.

[0084] Furthermore, when the object is held at the hinge position when the folding device is in a folded state, or at the edge of the second frame when the folding device is in an unfolded state, since the main antenna module is not provided at the hinge position and the edge of the second frame, it will not affect the object being held.

[0085] In the embodiment of the present disclosure, when the first detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the first antenna module close to the first detection module is reduced;

[0086] When the second detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the first antenna module close to the second detection module is reduced.

[0087] In the disclosed embodiment, the first detection module is located at a first angle formed by connecting the first edge and the second edge, and the second detection module is located at a second angle formed by connecting the first edge and the third edge.

[0088] It should be noted that the first antenna module is arranged close to the first detection module, that is, the first antenna module is located at the first edge and adjacent to the first detection module; or, the first antenna module is located at the second edge and adjacent to the first detection module; or, the first antenna module is located at the first edge and the second edge and adjacent to the first detection module.

[0089] Similarly, the first antenna module is arranged close to the second detection module, that is, the first antenna module is located at the first edge and adjacent to the second detection module; or, the first antenna module is located at the third edge and adjacent to the second detection module; or, the first antenna module is located at the first edge and the third edge and adjacent to the second detection module.

[0090] When the folding device is in a folded state or an unfolded state, the first detection module is located at the first angle, and the second detection module is located at the second angle. In this way, when the object being held uses the folding device, the position of approaching and holding is located at the first angle, and the first detection module detects the capacitance formed between the first angle and the object being held; or the position of approaching and holding is located at the second angle, and the second detection module detects the capacitance formed between the second angle and the object being held; or, the position of approaching and holding is located at the first angle and the second angle, and the first detection module detects the capacitance formed between the first angle and the object being held.

[0091] It can be understood that the first detection module detects the capacitance formed between the first angle and the held object, and correspondingly reduces the transmission power of the first antenna module close to the first detection module; the second detection module detects the capacitance formed between the second angle and the held object, and correspondingly reduces the transmission power of the first antenna module close to the second detection module.

[0092] When the first detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the first antenna module close to the first detection module is reduced; when the second detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the first antenna module close to the second detection module is reduced.

[0093] In the disclosed embodiment, the first detection module and the second detection module are respectively arranged at two adjacent angles of the folding device, and the first angle and the second angle are both arranged away from the rotating shaft; the first detection module and the second detection module are used to detect the capacitance value of the capacitor formed between the holding object of the folding device. In other words, the disclosed embodiment can detect the approach of the holding object based on the first detection module and the second detection module located at different angles and reduce the transmission power of the antenna close to the first detection module and the second detection module in the folding device, thereby meeting the requirements of the Specific Absorption Rate certification of the folding device regardless of whether it is in the folded state or the unfolded state.

[0094] In one embodiment, Figure 3 is a schematic diagram of a folding state structure of a folding device according to an exemplary embodiment. Figure 3 As shown, the first detection module 401 includes a first antenna branch 4001, and the second detection module 402 includes a second antenna branch 4002;

[0095] The first antenna branch 4001 is located at the first angle and is used to send and receive cellular mobile communication signals in the first frequency band and the second frequency band;

[0096] The second antenna branch 4002 is located at the second angle and is used to send and receive cellular mobile communication signals of the first frequency band and the third frequency band;

[0097] The center frequency of the first frequency band is smaller than the center frequency of the second frequency band; and the frequency in the second frequency band is smaller than the center frequency of the third frequency band.

[0098] In the present disclosure, Figure 3 As shown, the first detection module may further include a first detection chip 405 connected to the first antenna branch 4001 and configured to detect the capacitance value of the capacitor when the holding object holds the first antenna branch 4001.

[0099] The first antenna module may be arranged close to the first antenna branch and located at the first edge of the first frame and / or the second edge of the first frame.

[0100] That is to say, the first detection module of the embodiment of the present disclosure has both an antenna function and a capacitance detection function. Thus, by setting different devices for different functions, the embodiment of the present disclosure can improve device integration and reduce occupied space.

[0101] The above-mentioned first antenna branch is located at the first angle, which may include: the first antenna branch is located at the first angle of the first frame and is arranged on the first edge; or, the first antenna branch is located at the first angle of the first frame and is arranged on the second edge; or, the first antenna branch is located at the first angle of the first frame and is arranged on the first edge and the second edge.

[0102] It should be noted that the first antenna branch is used to send and receive cellular mobile communication signals, and the first antenna branch can be used as an antenna for sending and receiving first frequency band (low frequency) cellular mobile communication signals and second frequency band (medium and high frequency) cellular mobile communication signals. Exemplarily, the frequency range of low-frequency cellular mobile communication signals is within 30KHz to 300KHz, the frequency range of medium-frequency cellular mobile communication signals is within 300KHz to 3MHz, and the frequency range of high-frequency cellular mobile communication signals is within 3MHz to 30MHz, and the embodiments of the present disclosure do not limit this.

[0103] The first detection chip is connected to the first antenna branch, wherein the first detection chip can be located in any area of ​​the first frame, which is not limited in the embodiment of the present disclosure. For example, the first detection chip can be located in the first frame near the first antenna branch.

[0104] The above-mentioned first antenna module may include multiple antenna branches, and the multiple antenna branches can be arranged on the first edge and / or the second edge. The number of the multiple antenna branches arranged on the first edge and the number of the multiple antenna branches arranged on the second edge may be equal or unequal, and the embodiments of the present disclosure do not impose any restrictions on this.

[0105] Among them, multiple antenna branches are used to transmit and receive signals of different frequency bands or transmit and receive signals of the same frequency band, and the embodiments of the present disclosure do not limit this. Multiple antenna branches can also transmit and receive signals of different types or transmit and receive signals of the same type. For example, multiple antenna branches can transmit and receive wireless fidelity signals, cellular mobile communication signals, etc., and the embodiments of the present disclosure do not limit this.

[0106] It should be noted that the first antenna module is arranged close to the first antenna branch and is located at the first edge of the first frame and / or the second edge of the first frame. When the first detection chip detects that the capacitance value of the capacitance between the holding object and the first antenna branch is greater than the first preset capacitance threshold, the folding device reduces the transceiver power of the first antenna module, and when the first detection chip detects that the capacitance value of the capacitance between the holding object and the first antenna branch is less than or equal to the preset capacitance threshold, the folding device can increase the transceiver power of the first antenna module to the rated power.

[0107] In the present disclosure, Figure 3 As shown, the second detection module 402 includes a second antenna branch 4002, which is located at the second angle and is set away from the rotating shaft 30; the second detection module 402 can also include a second detection chip 406, which is connected to the second antenna branch 4002 and is configured to detect the capacitance value of the capacitor when the holding object holds the second antenna branch 4002.

[0108] The first antenna module is disposed close to the second antenna branch and is located at the first edge of the first frame and / or the third edge of the first frame.

[0109] The second antenna branch is located at the second angle, which may include: the second antenna branch is located at the second angle of the first frame and is arranged on the first edge; or, the second antenna branch is located at the second angle of the first frame and is arranged on the third edge; or, the second antenna branch is located at the second angle of the first frame and is arranged on the first edge and the third edge.

[0110] It should be noted that when the second antenna branch is used to send and receive cellular mobile communication signals, the second antenna branch can be used as an antenna for sending and receiving first frequency band (low frequency) cellular mobile communication signals, third frequency band (Sub6G frequency band) signals or N78 frequency band signals. Exemplarily, the frequency range of low-frequency wireless signals is between 30KHz and 300KHz, Sub 6GHz is between 450MHz and 6000Mhz, and the N78 frequency band is part of the 5G frequency band, between 3300MHz and 3800MHz, and the embodiments of the present disclosure do not limit this.

[0111] The second detection chip is connected to the second antenna branch, wherein the second detection chip can be located in any area of ​​the first frame, which is not limited in the embodiment of the present disclosure. For example, the second detection chip can be located in the first frame near the second antenna branch.

[0112] The multiple antenna branches included in the above-mentioned first antenna module can be arranged on the first edge and / or the third edge. The number of the multiple antenna branches arranged on the first edge and the number of the multiple antenna branches arranged on the third edge can be equal or unequal, and the embodiments of the present disclosure do not limit this.

[0113] It should be noted that the first antenna module is arranged close to the second antenna branch and is located at the first edge of the first frame and / or the third edge of the first frame. When the second detection chip detects that the capacitance value of the capacitance between the holding object and the second antenna branch is greater than the second preset capacitance threshold, the folding device reduces the transceiver power of the first antenna module, and when the second detection chip detects that the capacitance value of the capacitance between the holding object and the second antenna branch is less than or equal to the second preset capacitance threshold, the folding device increases the transceiver power of the first antenna module to the rated power.

[0114] In the embodiment of the present disclosure, by setting a first antenna branch in the first detection module and a second antenna branch in the second detection module, the space occupied by the first detection module and the second detection module in the folding device can be reduced, and the first antenna branch and the second antenna branch can be used to send and receive signals, and can also be connected to the first detection chip and the second detection chip. By detecting the capacitance value of the capacitor between the held object and the first antenna branch and / or the second antenna branch, the transmission power of the antenna is reduced to meet the requirements of the specific absorption rate certification.

[0115] In one embodiment, Figure 4 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment Figure 3 ,like Figure 4 As shown, the foldable device includes: a fifth antenna branch 4005 and a sixth antenna branch 4006 for transmitting and receiving wireless signals of different frequency bands;

[0116] The fifth antenna branch 4005 and the sixth antenna branch 4006 are spaced apart at a middle position between the first angle and the second angle, and the fifth antenna branch 4005 is arranged close to the second antenna branch 4002, and the sixth antenna branch 4006 is arranged close to the first antenna branch 4001.

[0117] The fifth antenna branch and the sixth antenna branch are located at the first edge.

[0118] In the embodiment of the present disclosure, the fifth antenna branch may be one or more. When the fifth antenna branch is set to one, one fifth antenna branch is adjacent to and spaced from the second antenna branch located at the first edge; when the fifth antenna branch is set to multiple, multiple fifth antenna branches may be set on the first edge, wherein the multiple fifth antenna branches located on the first edge are adjacent to and spaced from each other, and are adjacent to and spaced from the second antenna branch located at the first edge. Multiple fifth antenna branches may transmit and receive the same signal or different signals, and the embodiment of the present disclosure does not limit this.

[0119] Similarly, in the embodiment of the present disclosure, the sixth antenna branch may be one or more. When the sixth antenna branch is set to one, one sixth antenna branch is adjacent to and spaced from the first antenna branch located at the first edge; when the sixth antenna branch is set to multiple, multiple sixth antenna branches may be set on the first edge, wherein the multiple sixth antenna branches located on the first edge are adjacent to and spaced from each other, and are adjacent to and spaced from the first antenna branch located at the first edge. Multiple sixth antenna branches may transmit and receive the same signal or different signals, and the embodiment of the present disclosure does not limit this.

[0120] It should be noted that the fifth antenna branch and the sixth antenna branch may be two antenna branches included in the first antenna module.

[0121] The lengths of the fifth antenna branch and the sixth antenna branch may be equal or different, and the embodiments of the present disclosure do not limit this. It should be noted that when the length of the fifth antenna branch is less than the length of the sixth antenna branch, the frequency of the fifth antenna branch receiving and transmitting signals is higher than the frequency of the sixth antenna branch receiving and transmitting signals; when the length of the fifth antenna branch is greater than the length of the sixth antenna branch, the frequency of the sixth antenna branch receiving and transmitting signals is higher than the frequency of the fifth antenna branch receiving and transmitting signals.

[0122] In the embodiment of the present disclosure, by providing the fifth antenna branch and the sixth antenna branch for transmitting and receiving wireless signals of different frequency bands, while the folding device meets the specific absorption rate certification, it can be ensured that the antenna branches at the first angle and the second angle of the folding device transmit and receive wireless signals of different frequency bands.

[0123] In one embodiment, the fifth antenna branch is used to send and receive cellular mobile communication signals in the second frequency band; and the sixth antenna branch is used to send and receive wireless fidelity signals or Bluetooth signals.

[0124] When the fifth antenna branch is used to transmit and receive cellular mobile communication signals in the second frequency band, the fifth antenna branch can be used as an antenna for transmitting and receiving cellular mobile communication signals. Exemplarily, the cellular mobile communication signals in the second frequency band may include medium frequency cellular mobile communication signals and high frequency cellular mobile communication signals.

[0125] When the sixth antenna branch is used to send and receive wireless fidelity signals, the sixth antenna branch can be used as an antenna for sending and receiving wireless fidelity signals. Exemplarily, the frequency band of the wireless fidelity signal may include 2.4GHz, 5GHz and / or 6E, where 6E is an extended 6G frequency band between 5.925GHz and 7.125Ghz; when the sixth antenna branch is used to send and receive Bluetooth signals, the sixth antenna branch can be used as an antenna for sending and receiving Bluetooth signals.

[0126] In the embodiment of the present disclosure, by setting the fifth antenna branch to transmit and receive cellular mobile communication signals and the sixth antenna branch to transmit and receive wireless fidelity signals, it is ensured that when the folding device is used in landscape mode, when the first angle and the second angle are approached by the holding object but the fifth antenna branch and the sixth antenna branch are not held, there is no need to perform power fallback, thereby ensuring the communication effect when the user uses it.

[0127] In one embodiment, if Figure 4 As shown, the folding device also includes:

[0128] The third antenna branch 4003 is located on the first frame 10 between the second antenna branch 4002 and the rotating shaft 30;

[0129] a seventh antenna branch 4007, located on the first frame 10 between the first antenna branch 4001 and the rotating shaft 30;

[0130] The third antenna branch 4003 and the seventh antenna branch 4007 are both used for transmitting and receiving wireless fidelity signals; or, for transmitting and receiving cellular mobile communication signals of the second frequency band and the third frequency band.

[0131] In the embodiment of the present disclosure, the first antenna module may also include a third antenna branch and a seventh antenna branch. When the third antenna branch and the seventh antenna branch are both used for transmitting and receiving wireless fidelity signals, the third antenna branch and the seventh antenna branch can both be used as antennas for transmitting and receiving wireless fidelity signals. For example, the frequency band of the wireless fidelity signal may include 2.4GHz, 5GHz, and Sub6GHz, wherein Sub 6GHz is part of the 5G frequency band, between 450MHz and 6000Mhz; when the third antenna branch and the seventh antenna branch are both used for transmitting and receiving cellular mobile communication signals, the third antenna branch and the seventh antenna branch can both be used as antennas for transmitting and receiving second frequency band (medium and high frequency) cellular mobile communication signals and third frequency band (Sub 6GHz). For example, the frequency range of medium and high frequency cellular mobile communication signals is within 300KHz to 30MHz, and the frequency range of Sub 6GHz cellular mobile communication signals is within 450MHz-6000MHz. The embodiment of the present disclosure does not limit this.

[0132] In the disclosed embodiment, by setting the third antenna branch and the seventh antenna branch for transmitting and receiving the same frequency band, it is ensured that when the first angle is held by the object and the second angle is not held by the object, the seventh antenna branch completes power backoff and the third antenna branch transmits and receives signals at full power; when the second angle is held by the object and the first angle is not held by the object, the third antenna branch completes power backoff and the seventh antenna branch transmits and receives signals at full power, that is, the communication performance is guaranteed while meeting the specific absorption rate certification requirements.

[0133] In one embodiment, if Figure 3 As shown, the folding device may further include: an insulating strip 601, which is filled in the gap between the first antenna module and the first antenna branch to separate the first antenna module from the first antenna branch.

[0134] It should be noted that the insulating strip can be made of insulating materials, including insulating paint, rubber, plastic, etc., which is not limited in the embodiments of the present disclosure. The length of the insulating strip can be set within the range of 1 mm to 3 mm, which is not limited in the embodiments of the present disclosure.

[0135] There may be multiple insulating strips, and the multiple insulating strips may be located on the first edge and / or the second edge, respectively. Exemplarily, the insulating strip may be located on the first edge to separate the first antenna branch from the sixth antenna branch of the first antenna module; or, the insulating strip may also be located on the second edge to separate the first antenna branch from the seventh antenna branch of the first antenna module.

[0136] Furthermore, when there are multiple sixth antenna branches, the insulating strip can also be filled in the gap between the multiple sixth antenna branches to separate two adjacent sixth antenna branches among the multiple sixth antenna branches; or, when there are multiple seventh antenna branches, the insulating strip can also be filled in the gap between the multiple seventh antenna branches to separate two adjacent seventh antenna branches among the multiple seventh antenna branches.

[0137] In the disclosed embodiment, since the capacitance formed between the first antenna branch and the held object requires that the first antenna branch cannot be grounded, an insulating strip can be provided to isolate the first antenna branch from the ground, making the result of detecting the specific absorption rate value more accurate and better meeting the requirements of the specific absorption rate certification.

[0138] In one embodiment, if Figure 4 As shown, the fourth antenna branch 4004 is located at the top of the folding device and is spaced apart on the first frame 10 between the second antenna branch 4002 and the third antenna branch 4003 for sending and receiving global positioning signals or wireless fidelity signals.

[0139] When the fourth antenna branch is used to send and receive global positioning signals, the fourth antenna branch can be used as an antenna for sending and receiving global positioning signals. For example, the frequency band of the global positioning signal may include L5 or L1. When the fourth antenna branch is used to send and receive wireless fidelity signals, the fourth antenna branch can be used as an antenna for sending and receiving wireless fidelity signals. For example, the frequency band of the wireless fidelity signals may include 2.4 GHz and / or 5 GHz.

[0140] In the disclosed embodiment, the fourth antenna branch is used to send and receive global positioning signals, and positioning or navigation is performed by receiving satellite signals. Setting the fourth antenna branch on the top of the folding device can meet the needs of the folding device to better send and receive global positioning signals.

[0141] In one embodiment, the folding device further comprises:

[0142] At least one auxiliary detection module is located at an angle of the second frame and is arranged away from the rotating shaft;

[0143] At least one secondary antenna module, located at an edge of the second frame and disposed close to the secondary detection module;

[0144] When the secondary detection module detects that the capacitance value of the capacitor is greater than a preset capacitance threshold, the transmission power of the secondary antenna module is reduced.

[0145] in, Figure 5 is a schematic plan view of a folding device in an unfolded state according to an exemplary embodiment. Figure 2 and Figure 5As shown, the at least one secondary detection module includes a third detection module 403 and a fourth detection module 404; the third detection module 403 and the fourth detection module 404 are used to detect the capacitance value of the capacitance formed between the folding device and the object being held;

[0146] The third detection module 403 includes a twelfth antenna branch 4012, and the fourth detection module 404 includes a ninth antenna branch 4009;

[0147] The twelfth antenna branch 4012 and the ninth antenna branch 4009 are respectively located at two adjacent angles in the second frame 20 away from the rotating shaft 30, and are both used for transmitting and receiving cellular mobile communication signals in the first frequency band.

[0148] The third detection module is located at a third angle formed by connecting two adjacent edges of the second frame; the fourth detection module is located at a fourth angle adjacent to the third angle in the second frame.

[0149] In the disclosed embodiment, at least one secondary antenna module includes: a second antenna module;

[0150] The second antenna module is arranged close to the third detection module and / or the fourth detection module;

[0151] When the third detection module and / or the fourth detection module detects that the capacitance value of the capacitance formed between the folding device and the object being held is greater than a preset capacitance threshold, the transmission power of the second antenna module is reduced.

[0152] The auxiliary detection module is located at the angle formed by connecting two adjacent edges in the second frame. Here, the second frame includes a fourth edge away from the rotation axis, a fifth edge adjacent to the fourth edge, a sixth edge adjacent to the fourth edge and opposite to the fifth edge, and an edge close to the rotation axis and opposite to the fourth edge. The second frame includes: a third angle formed by connecting the fourth edge and the fifth edge, and a fourth angle formed by connecting the fourth edge and the sixth edge.

[0153] In the embodiment of the present disclosure, there may be one or more auxiliary detection modules; when there is one auxiliary detection module, the auxiliary detection module may be located at the third angle or the fourth angle; when there are two auxiliary detection modules, the auxiliary detection modules may be located at the third angle and the fourth angle respectively.

[0154] In the disclosed embodiment, when the gripping object approaches the angle where the secondary detection module is located, capacitance is generated between the gripping object and the secondary detection module, and the secondary detection module detects the capacitance value between the gripping object and the secondary detection module, and transmits the capacitance value information to the folding device. That is, the secondary detection module can not only form capacitance between the gripping object and the secondary detection module, but also detect the capacitance value of the capacitance.

[0155] Among them, the auxiliary detection module may include multiple detection modules, and the detection chips in different detection modules may be the same or different, which is not limited in the embodiments of the present disclosure.

[0156] The above-mentioned secondary antenna module is located at the edge of the second frame and is arranged close to the secondary detection module. Since the secondary detection module is located at the angle formed by connecting two adjacent edges in the second frame, that is, when the secondary detection module is located at the third angle formed by the fourth edge and the fifth edge, the secondary antenna module is arranged at the fourth edge and adjacent to the secondary detection module, or is arranged at the fifth edge and adjacent to the secondary detection module, or is respectively arranged at the fourth edge and the fifth edge and adjacent to the secondary detection module.

[0157] It should be noted that the sub-antenna module is used to send or receive electromagnetic wave signals, and the sub-antenna module can be set on the frame of the second frame, or serve as a conductive frame of the second frame. Exemplarily, when the sub-antenna module is set on the frame of the second frame, the sub-antenna module includes a built-in antenna, and the frame of the second frame is provided with a groove. The built-in antenna is located inside the groove. The built-in antenna includes a flexible circuit board antenna, a spring antenna, a ceramic patch antenna, etc., and the embodiments of the present disclosure are not limited to this. When the sub-antenna module serves as a conductive frame of the second frame, the sub-antenna module includes a metal frame antenna. By setting breakpoints on the metal frame, a variety of metal frame antennas can be designed. The metal frame antenna is made of materials such as titanium / aluminum alloy, stainless steel, and liquid metal. The embodiments of the present disclosure are not limited to this.

[0158] Among them, when the secondary antenna module is a metal frame antenna, the secondary antenna module may or may not be connected to the mainboard of the folding device, and the embodiments of the present disclosure do not limit this. When the secondary antenna module is not connected to the mainboard of the folding device, when the folding screen is in the closed state, the antennas at the corresponding positions of the secondary antenna module and the main antenna module can be coupled to each other, so that the secondary antenna module can also send and receive signals.

[0159] In the embodiment of the present disclosure, when the secondary detection module detects that the capacitance value formed between the secondary detection module and the object holding the folding device is greater than a preset capacitance threshold, the transmission power of the secondary antenna module is reduced. Due to different standards for specific absorption rate certification, the preset capacitance threshold for setting the capacitance value is different.

[0160] It should be noted that the closer the distance between the folding device and the held object is, the greater the capacitance value detected by the secondary detection module between the folding device and the held object, and the greater the specific absorption rate value generated to the held object. Therefore, when the capacitance value is greater than the preset capacitance threshold, it is necessary to reduce the transmission power of the secondary antenna module to reduce the radiation impact on the held object.

[0161] It can be understood that the folding device has a folded state or an unfolded state. When the holding object uses the folding device, the holding position is located at the angle of the second frame, and a secondary detection module is arranged at the angle of the second frame. Therefore, the approach of the holding object can be detected, and the transmission power of the secondary antenna module arranged near the secondary detection module can be reduced.

[0162] In the disclosed embodiment, the third detection module is located at a third angle formed by connecting the fourth edge and the fifth edge, and the fourth detection module is located at a fourth angle formed by connecting the fourth edge and the sixth edge.

[0163] That is to say, corresponding detection modules can be set at the four angles of the folding device to detect the capacitance value formed between the holding object holding the folding device from different directions and the main detection module and / or the auxiliary detection module. And when the holding object does not hold at least one angle, the antenna branch corresponding to the angle may not perform power backoff, thereby ensuring communication performance.

[0164] It should be noted that the second antenna module is arranged close to the third detection module, that is, the second antenna module is located at the fourth edge and adjacent to the third detection module; or, the second antenna module is located at the fifth edge and adjacent to the third detection module; or, the second antenna module is located at the fourth edge and the fifth edge and adjacent to the third detection module.

[0165] Similarly, the second antenna module is arranged close to the fourth detection module, that is, the second antenna module is located at the fourth edge and adjacent to the fourth detection module; or, the second antenna module is located at the sixth edge and adjacent to the fourth detection module; or, the second antenna module is located at the fourth edge and the sixth edge and adjacent to the fourth detection module.

[0166] When the folding device is in a folded state or an unfolded state, the third detection module is located at the third angle, and the fourth detection module is located at the fourth angle. In this way, when the holding object uses the folding device, the holding position is located at the third angle, and the third detection module detects the capacitance formed between the third angle and the holding object; or, the holding position is located at the fourth angle, and the fourth detection module detects the capacitance formed between the fourth angle and the holding object; or, the holding position is located at the third angle and the fourth angle, and the third detection module detects the capacitance at the third angle and the fourth detection module detects the capacitance at the fourth angle.

[0167] It can be understood that the third detection module detects the capacitance formed between the third angle and the held object, and correspondingly reduces the transmission power of the second antenna module set near the third detection module; the fourth detection module detects the capacitance formed between the fourth angle and the held object, and correspondingly reduces the transmission power of the second antenna module set near the fourth detection module.

[0168] When the third detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the second antenna module is reduced; when the fourth detection module detects that the capacitance value of the capacitor is greater than the preset capacitance threshold, the transmission power of the second antenna module is reduced.

[0169] In the disclosed embodiment, the third detection module includes a twelfth antenna branch, and the fourth detection module includes a ninth antenna branch. The twelfth antenna branch and the ninth antenna branch are respectively located at two adjacent angles in the second frame away from the rotating shaft, and are both used to transmit and receive cellular mobile communication signals in the first frequency band. Here, the twelfth antenna branch can be located at the third angle of the second frame, and the ninth antenna branch can be located at the fourth angle of the second frame.

[0170] It should be noted that the twelfth antenna branch and the ninth antenna branch can both be used for cellular mobile communication signals in the first frequency band. Here, the twelfth antenna branch and the ninth antenna branch can be used as antennas for transmitting and receiving signals, and can also be reused as devices for detecting capacitance. In this way, compared with different devices for different functions, the embodiment of the present disclosure can improve the device integration and reduce the occupied space.

[0171] In the embodiment of the present disclosure, the twelfth antenna branch of the third detection module is arranged at the third angle of the second frame, the ninth antenna branch of the fourth detection module is arranged at the fourth angle of the second frame, and the second antenna module is arranged close to the third detection module and / or the fourth detection module. In other words, the embodiment of the present disclosure can detect the approach of the holding object based on the third detection module and the fourth detection module located at different angles and reduce the transmission power of the corresponding antenna branch. Moreover, when the twelfth antenna branch is held by the holding object, the ninth antenna branch that is not held does not need to be power backed off, and when the ninth antenna branch is held by the holding object, the twelfth antenna branch that is not held does not need to be power backed off. In this way, the folding device can meet the requirements of the specific absorption rate certification while ensuring the communication performance regardless of whether it is in the folded state or the unfolded state.

[0172] In one embodiment, if Figure 5 As shown, the folding device also includes:

[0173] The tenth antenna branch 4010 and the eleventh antenna branch 4011 are arranged at intervals at the middle position between the third angle and the fourth angle adjacent to each other in the second frame 20, and the tenth antenna branch 4010 is arranged close to the ninth antenna branch 4009, and the eleventh antenna branch 4011 is arranged close to the twelfth antenna branch 4012, and the third angle and the fourth angle are both arranged away from the rotating shaft 30;

[0174] The tenth antenna branch 4010 and the eleventh antenna branch 4011 are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

[0175] When the tenth antenna branch and the eleventh antenna branch are used to transmit and receive cellular mobile communication signals in the second frequency band, the tenth antenna branch and the eleventh antenna branch can be used as antennas for transmitting and receiving cellular mobile communication signals. Exemplarily, the cellular mobile communication signals in the second frequency band may include medium-frequency cellular mobile communication signals and high-frequency cellular mobile communication signals.

[0176] When the tenth antenna branch and the eleventh antenna branch are used to send and receive wireless fidelity signals, the tenth antenna branch and the eleventh antenna branch can be used as antennas for sending and receiving wireless fidelity signals. Exemplarily, the frequency band of the wireless fidelity signal may include 2.4 GHz, 5 GHz and / or 6E, wherein 6E is an extended 6G frequency band, between 5.925 GHz and 7.125 GHz.

[0177] In the disclosed embodiments, by setting the tenth antenna branch to transmit and receive cellular mobile communication signals and the eleventh antenna branch to transmit and receive wireless fidelity signals, or setting the tenth antenna branch to transmit and receive wireless fidelity signals and the eleventh antenna branch to transmit and receive cellular mobile communication signals, it is ensured that when the foldable device is used in landscape mode, the tenth antenna branch and the eleventh antenna branch do not need to perform power backoff, thereby ensuring the communication effect when the user uses it.

[0178] In one embodiment, if Figure 5 As shown, the folding device also includes:

[0179] an eighth antenna branch 4008, located on the second frame between the ninth antenna branch 4009 and the rotating shaft 30;

[0180] A thirteenth antenna branch 4013 is located on the second frame 20 between the twelfth antenna branch 4012 and the rotating shaft 30;

[0181] The eighth antenna branch 4008 and the thirteenth antenna branch 4013 are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

[0182] When the eighth antenna branch and the thirteenth antenna branch are used to transmit and receive cellular mobile communication signals of the second frequency band, the eighth antenna branch and the thirteenth antenna branch can be used as antennas for transmitting and receiving cellular mobile communication signals. Exemplarily, the cellular mobile communication signals of the second frequency band may include medium-frequency cellular mobile communication signals and high-frequency cellular mobile communication signals.

[0183] When the eighth antenna branch and the thirteenth antenna branch are used to send and receive wireless fidelity signals, the eighth antenna branch and the thirteenth antenna branch can be used as antennas for sending and receiving wireless fidelity signals. Exemplarily, the frequency band of the wireless fidelity signal may include 2.4 GHz, 5 GHz and / or 6E, wherein 6E is an extended 6G frequency band, between 5.925 GHz and 7.125 GHz.

[0184] In the disclosed embodiments, by setting the eighth antenna branch and the thirteenth antenna branch both for sending and receiving cellular mobile communication signals, or setting the eighth antenna branch and the thirteenth antenna branch both for sending and receiving wireless fidelity signals, it is ensured that when the third angle of the folding device is held by the holding object, the eighth antenna branch does not need to perform power backoff, or when the fourth angle of the folding device is held by the holding object, the eleventh antenna branch does not need to perform power backoff, thereby ensuring the communication effect when the user uses it.

[0185] In one embodiment, if Figure 2 As shown, when the folding device is in the unfolded state, the first antenna branch 4001 and the ninth antenna branch 4009 are symmetrically arranged on both sides of the rotating shaft; and / or the second antenna branch 4002 and the twelfth antenna branch 4012 are symmetrically arranged on both sides of the rotating shaft.

[0186] In other embodiments, when the folding device is in the unfolded state, the fifth antenna branch and the eleventh antenna branch can be symmetrically arranged on both sides of the rotating shaft; the sixth antenna branch and the tenth antenna branch can be symmetrically arranged on both sides of the rotating shaft; the seventh antenna branch and the eighth antenna branch can be symmetrically arranged on both sides of the rotating shaft.

[0187] In this way, when the foldable device is in a folded state, when the first antenna module transmits or receives wireless signals, the second antenna module can be coupled with the first antenna module to jointly transmit or receive wireless signals.

[0188] Furthermore, the symmetrically arranged antenna branches can be set to transmit and receive signals of the same type and frequency band. For example, the fifth antenna branch and the eleventh antenna branch are both used to transmit and receive cellular mobile communication signals of the second frequency band, and the sixth antenna branch and the tenth antenna branch are both used to transmit and receive wireless fidelity signals. In this way, when the foldable device is in the unfolded state, when the holding object holds the first angle and the second angle, the antenna branches at the third angle and the fourth angle can still transmit and receive signals at full power.

[0189] In the disclosed embodiment, by symmetrically arranging the main detection module and the auxiliary detection module, the appearance of the folding device can be beautified, and the requirements of the specific absorption rate certification can be met on the basis of ensuring the communication performance.

[0190] In one embodiment, if Fig. 9As shown, the first branch segment E of the first antenna branch and the second branch segment F of the second antenna branch are located on the same side of the first frame;

[0191] The length of the first branch segment E and the length of the second branch segment F are both greater than or equal to 30 mm.

[0192] The first antenna branch comprises a first branch segment located at a first edge and a third branch segment located at a second edge. The length of the first branch segment is greater than or equal to 30 mm; the length of the third branch segment is greater than or equal to 10 mm.

[0193] It should be noted that when the folding device is used in horizontal screen gaming or watching movies, when the holding object contacts the first antenna branch, since the length of the first branch segment is greater than or equal to 30 mm, the holding object will not hold the entire first antenna branch, and thus there is no need to reduce the transmission power of the first antenna module close to the first antenna branch that is not held, such as the sixth antenna branch. Moreover, since the length of the third branch segment is greater than or equal to 10 mm, the requirements for the specific absorption rate certification are met at the same time.

[0194] In the embodiment of the present disclosure, the length of the first branch segment is greater than or equal to 30 mm and the length of the third branch segment is greater than or equal to 10 mm, thereby improving the antenna performance while ensuring the specific absorption rate certification requirements.

[0195] The second antenna branch includes a second branch segment located at the first edge and a fourth branch segment located at the third edge. The length of the second branch segment is greater than or equal to 30 mm; the length of the fourth branch segment is greater than or equal to 10 mm.

[0196] It should be noted that when the folding device is used for horizontal screen gaming or watching movies, when the holding object contacts the second antenna branch, since the length of the second branch segment is greater than or equal to 30 mm, the holding object will not hold the entire second antenna branch, and thus there is no need to reduce the transmission power of the first antenna module close to the second antenna branch that is not held, such as the fifth antenna branch; and since the length of the fourth branch segment is greater than or equal to 10 mm, the requirements for the specific absorption rate certification are met at the same time.

[0197] In the embodiment of the present disclosure, the length of the second branch segment is set to be greater than or equal to 30 mm and the length of the fourth branch segment is set to be greater than or equal to 10 mm, thereby improving the antenna performance while ensuring the specific absorption rate certification requirements.

[0198] In one embodiment, the folding device further comprises:

[0199] A main board, located on the first frame;

[0200] A flexible transmission line has one end connected to the mainboard and the other end connected to the second antenna module via the rotating shaft.

[0201] The above-mentioned main board includes: a printed circuit board (Printed Circuit Board, PCB), a flexible printed circuit board (Flexible Printed Circuit, FPC), a ceramic substrate, etc., which is not limited in the embodiments of the present disclosure.

[0202] It should be noted that the mainboard is used for integrated circuits, and after the mainboard is powered on, it provides power and circuit control for the main detection module, the auxiliary detection module, the main antenna module and the auxiliary antenna module. Exemplarily, after the mainboard and the main detection module, the auxiliary detection module, the main antenna module and the auxiliary antenna module are turned on, the receiving and transmitting power of the main antenna module and the auxiliary antenna module can be controlled to be reduced or increased.

[0203] In the embodiment of the present disclosure, the flexible transmission line can be deformed following the rotation of the shaft. The above-mentioned flexible transmission line includes a first part passing through the shaft and a second part located in the first frame and the second frame, wherein the first part can be set with a flexible material, or the first part and the second part can be set with a flexible material, and the embodiment of the present disclosure does not limit this. Exemplarily, the flexible transmission line includes: a flexible flat cable (Flexible Flat Cable, FFC).

[0204] It should be noted that, since the flexible transmission line located on the shaft will be stretched when the shaft drives the first frame to fold or unfold relative to the second frame, the flexible transmission line can be set to better connect the secondary antenna module and the main board. In addition, the main board can control whether the secondary antenna module is connected to the main board. When the connection line between the main board and the secondary antenna module is connected, the secondary antenna module can be used as an independent antenna to send and receive signals; when the connection line between the main board and the secondary antenna module is disconnected, the secondary antenna module can be coupled with the main antenna module to send and receive signals when the folding device is in the folded state.

[0205] In the embodiment of the present disclosure, by providing a flexible transmission line to connect the mainboard and the second antenna module, the second antenna module can be used as an independent antenna to send and receive signals.

[0206] In one embodiment, if Figure 5 As shown, the folding device further includes a camera module 70;

[0207] The camera module 70 is located on the first frame 10 and is disposed close to the second detection module 402 .

[0208] The camera module is used to collect images. In the disclosed embodiment, the camera module, the second detection module and the first antenna module may be located on the same side of the folding device. Here, the first antenna module includes a third antenna branch, a fourth antenna branch and a fifth antenna branch. The first antenna module is arranged close to the camera module, and based on the coupling between the metal frame of the camera module and the first antenna module, the transceiver efficiency of the three antenna branches in the first antenna module can be improved.

[0209] In order to better understand the folding device in one or more of the above embodiments, the embodiments of the present disclosure are exemplified as follows:

[0210] Figure 6 is a schematic diagram of a folding device in an unfolded state according to an exemplary embodiment. Figure 6 As shown, the folding device includes six planes when in the unfolded state, and the six planes are respectively the front of the plane where the first screen is located, the plane where the camera module is located opposite to the front is the back of the folding device, the plane where the side corresponding to the first edge is located is the right side, the plane where the side corresponding to the fourth edge is located is the left side, the plane where the side corresponding to the third edge and the fifth edge is located is the top plane, and the plane where the side corresponding to the second edge and the sixth edge is located is the bottom plane.

[0211] In the present disclosure, Figure 2 and Figure 3 As shown, a first detection module 401 is provided at the first angle and a second detection module 402 is provided at the second angle. The first detection module 401 can detect the capacitance formed between the holding object and the first antenna branch 4001 when the holding object holds the folding device from the bottom, right, front and back of the folding device; the second detection module 402 can detect the capacitance formed between the holding object and the second antenna branch 4002 when the holding object holds the folding device from the top, right, front and back of the folding device.

[0212] That is, when the foldable device is in the unfolded state, the capacitance formed by the holding object holding the foldable device from five sides (such as the top, right, bottom, front and back) can be detected through the first detection module 401 and the second detection module 402. Since there is no transceiver antenna on the side where the fourth edge on the left is located, the specific absorption rate value is extremely low and can be approximately equal to 0 during the test, and no power backoff is required for any antenna.

[0213] It should be noted that if Figure 2 , Figure 3 and Figure 5As shown, when the folding device is in the unfolded state, in addition to the first detection module 401 and the second detection module 402, a third detection module 403 can be set at the third angle and a fourth detection module 404 can be set at the fourth angle, wherein the third detection module 403 can detect the capacitance formed between the holding object and the twelfth antenna branch 4012 when the holding object holds the folding device from the four sides of the top, left, front and back of the folding device; the fourth detection module 404 can detect the capacitance formed between the holding object and the ninth antenna branch 4009 when the holding object holds the folding device from the four sides of the bottom, left, front and back of the folding device.

[0214] It can be understood that by setting the first detection module to the fourth detection module, the capacitance formed when the holding object holds the folding device from six sides of the folding device can be detected.

[0215] In the disclosed embodiment, by setting the length of the first antenna branch 4001 and the second antenna branch 4002 to be greater than 20 mm, the folding device can meet the requirements of the contrast absorption rate value of the European Union (Conformite Europeenne, CE) certification and the Federal Communications Commission (Federal Communications Commission, FCC) certification when the diagonal length of the folding device is greater than 20 cm in the unfolded state.

[0216] Figure 7 is a schematic plan view of a folding state of a folding device according to an exemplary embodiment. Figure 7 As shown, the folding device includes six planes when it is in a folded state, and the six planes are: the plane where the second screen is located is the front, the plane where the camera module arranged opposite to the front is located is the back of the folding device, the plane where the side corresponding to the fourth edge is located is the right, the plane where the side where the rotating shaft is located is the left of the folding device, the plane where the side corresponding to the third edge and the fifth edge is located is the top, and the plane where the side corresponding to the second edge and the sixth edge is located is the bottom.

[0217] like Figure 2 and Figure 3 As shown, a first detection module 401 is provided at the first angle and a second detection module 402 is provided at the second angle. The first detection module 401 can detect the capacitance formed between the holding object and the first antenna branch 4001 when the holding object holds the folding device from the bottom, right, front and back of the folding device; the second detection module 402 can detect the capacitance formed between the holding object and the second antenna branch 4002 when the holding object holds the folding device from the top, right, front and back of the folding device.

[0218] That is, when the foldable device is in the folded state, the capacitance formed by the object holding the foldable device from five sides (such as the top, right, bottom, front and back) can be detected by the first detection module 401 and the second detection module 402. There is no transceiver antenna set on the side where the left rotating shaft is located, so the specific absorption rate value is extremely low and can be approximately equal to 0 during the test, and no power backoff is required for any antenna.

[0219] It should be noted that, due to the folding device in the folded state, the first detection module and the second detection module are arranged on the first frame, and the edge of the second frame will block the first detection module and the second detection module. In order to reduce the impact of the blockage by the second frame, the length of the first antenna branch of the first detection module and the second antenna branch of the second detection module need to meet the specific absorption rate certification requirements. Therefore, the first antenna branch and the second antenna branch both need to be greater than or equal to 20mm to ensure the detection distance within 5mm close to the front of the held object through the second frame.

[0220] In the embodiment of the present disclosure, when the object holding the foldable device actually uses the foldable device, such as Figure 2 , Figure 3 and Figure 4 As shown, the first antenna branch 4001 of the first detection module 401 is arranged at a first angle, the first branch segment of the first antenna branch 4001 is arranged on the first edge, the third branch segment of the first antenna branch 4001 is arranged on the second edge, the sixth antenna branch 4006 is arranged on the first edge and is spaced apart from the first branch segment, and the seventh antenna branch 4007 is arranged on the second edge and is spaced apart from the third branch segment; the second antenna branch 4002 of the second detection module 402 is arranged at the second angle, the second branch segment of the second antenna branch 4002 is arranged on the first edge, the fourth branch segment of the second antenna branch 4002 is arranged on the third edge, the fifth antenna branch 4005 is arranged on the first edge and is spaced apart from the first branch segment, the fourth antenna branch 4004 and the third antenna branch 4003 are arranged on the second edge, and the fourth antenna branch 4004 is located between the third antenna branch 4003 and the second antenna branch.

[0221] Figure 8 is a schematic diagram of a usage scenario of a folding device according to an exemplary embodiment. Figure 8 As shown, the foldable device is in an unfolded state and the holding object holds the foldable device with both hands.

[0222] When the holding object holds the first angle A of the first frame with the left hand and holds the second angle B of the first frame with the right hand, the first antenna branch and the second antenna branch are both held by the holding object, and the first detection module detects the capacitance value of the capacitor formed between the first antenna branch and the holding object, and the second detection module detects the capacitance value of the capacitor formed between the second antenna branch and the holding object. When the capacitance values ​​detected by the first detection module and the second detection module are both greater than the preset capacitance threshold, the first antenna branch to the seventh antenna branch will meet the requirements of the specific absorption rate certification for power backoff.

[0223] When the holding object holds the third angle C of the second frame with the left hand and holds the fourth angle D of the second frame with the right hand, neither the first antenna branch nor the second antenna branch will be held by the holding object, and there is no need to power back off the antenna branches.

[0224] When the holding object holds the fourth angle D of the second frame with the left hand and holds the first angle A of the first frame with the right hand, the holding object may hold the first antenna branch, the sixth antenna branch and the seventh antenna branch. The first detection module detects the capacitance value of the capacitor formed between the first antenna branch and the holding object. When the capacitance value is greater than the preset capacitance threshold, the first antenna branch, the sixth antenna branch and the seventh antenna branch perform power backoff, while the second antenna branch, the third antenna branch, the fourth antenna branch and the fifth antenna branch transmit at full power, thereby meeting the requirements of the specific absorption rate certification and improving the user communication experience through the full-power transmission of the second antenna branch, the third antenna branch, the fourth antenna branch and the fifth antenna branch.

[0225] The folding device is in the unfolded state and the holding object holds the folding device with one hand. When the holding object holds the first angle A, the first detection module detects the capacitance value of the capacitor formed between the first antenna branch and the holding object. When the capacitance value is greater than the preset capacitance threshold, the first antenna branch, the sixth antenna branch, and the seventh antenna branch perform power backoff. Alternatively, when the holding object holds the second angle B with one hand, the second detection module detects the capacitance value of the capacitor formed between the second antenna branch and the holding object. When the capacitance value is greater than the preset capacitance threshold, the second antenna branch, the third antenna branch, the fourth antenna branch, and the fifth antenna branch perform power backoff. If the third angle C or the fourth angle D is held with one hand, the antenna branches will not be held, and the antenna branches do not need to perform power backoff.

[0226] When the folding device is in the folded state, the object holding it can hold it with one hand or both hands. When the object holding it holds the first antenna branch and / or the second antenna branch, the first detection module detects the capacitance value of the capacitor formed between the first antenna branch and the object holding it and / or the second detection module detects the capacitance value of the capacitor formed between the second antenna branch and the object holding it. When the capacitance value is greater than the preset capacitance value, the first antenna branch, the sixth antenna branch and the seventh antenna branch perform power backoff and / or the second antenna branch, the third antenna branch, the fourth antenna branch and the fifth antenna branch perform power backoff. This satisfies the requirements of the specific absorption rate certification.

[0227] Fig. 9 is a horizontal screen diagram of a folding device in a folded state according to an exemplary embodiment. Fig. 9 As shown, when the folding device is in the folded state, the fingers of the holding object are placed at the first angle A and / or the second angle B. In the embodiment of the present disclosure, the length of the first branch segment E of the first antenna branch and the second branch segment F of the second antenna branch is greater than or equal to 30 mm. Therefore, the holding object will not hold all of the first antenna branches and the second antenna branches, especially the fifth antenna branch 4005 and the sixth antenna branch 4006.

[0228] In this way, in the horizontal screen scenario, the antenna performance of the fifth antenna branch and the sixth antenna branch of the folding device does not need to be power backed off.

[0229] Fig.10 is a comparison diagram of antenna performance of a folding device according to an exemplary embodiment. Fig.10 As shown, the solid line is the antenna performance of the embodiment of the present disclosure when the first branch segment and the second branch segment are both greater than or equal to 30 mm, and the dotted line is the antenna performance of the existing first branch segment and the second branch segment within the range of 10 mm to 20 mm. Compared with the existing solution with the first branch segment and the second branch segment within the range of 10 mm to 20 mm, the antenna performance of the embodiment of the present disclosure when the first branch segment and the second branch segment are both greater than or equal to 30 mm is better than the existing solution with the first branch segment and the second branch segment within the range of 10 mm to 20 mm.

[0230] Fig.11 is a horizontal screen diagram of a foldable device in an unfolded state according to an exemplary embodiment. Fig.11 As shown, the second frame body is not provided with the second antenna module and the secondary detection module. When the foldable device is in the unfolded state, the object of holding is holding at the third angle C and / or the fourth angle D, so it is impossible to hold the first antenna branch 4001 and the second antenna branch 4002 at the first angle A and the second angle B, that is, in the horizontal screen scenario in the unfolded state, the object of holding cannot hold the antenna branches, and there is no need to perform power fallback of the antenna branches.

[0231] It should be noted that the horizontal screen scenes of foldable devices include: gaming scenes, movie watching scenes, or photo taking scenes, etc.

[0232] Fig.12 1 is a block diagram of a foldable device according to an exemplary embodiment. For example, the foldable device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0233] Reference Fig.12 The foldable device may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0234] The processing component 802 generally controls the overall operation of the folding device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0235] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the foldable device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0236] The power supply component 806 provides power to various components of the foldable device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the foldable device 800.

[0237] The multimedia component 808 includes a screen that provides an output interface between the folding device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0238] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the folding device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0239] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0240] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the folding device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the folding device 800, and the sensor assembly 814 can also detect the position change of the folding device 800 or a component of the folding device 800, the presence or absence of user contact with the folding device 800, the orientation or acceleration / deceleration of the folding device 800, and the temperature change of the folding device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0241] The communication component 816 is configured to facilitate wired or wireless communication between the folding device 800 and other devices. The folding device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0242] In an exemplary embodiment, the folding device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0243] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the folding device 800. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0244] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0245] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A folding device, characterized in that: The folding device comprises: A first frame and a second frame; A rotating shaft, connected between the first frame body and the second frame body, and capable of driving the first frame body to fold or unfold relative to the second frame body; A first detection module is located at a first angle formed by connecting two adjacent edges of the first frame; A second detection module is located at a second angle adjacent to the first angle in the first frame; the first angle and the second angle are both arranged away from the rotating shaft; The first detection module and the second detection module are used to detect the capacitance value of the capacitor formed between the folding device and the object being held.

2. The folding device according to claim 1, characterized in that: The first detection module includes a first antenna branch, and the second detection module includes a second antenna branch; The first antenna branch is located at the first angle and is used to transmit and receive cellular mobile communication signals of the first frequency band and the second frequency band; The second antenna branch is located at the second angle and is used to send and receive cellular mobile communication signals in the first frequency band and the third frequency band; The center frequency of the first frequency band is smaller than the center frequency of the second frequency band; and the center frequency of the second frequency band is smaller than the center frequency of the third frequency band.

3. The folding device according to claim 2, characterized in that: The foldable device also includes a fifth antenna branch and a sixth antenna branch for transmitting and receiving wireless signals of different frequency bands; The fifth antenna branch and the sixth antenna branch are spaced apart at a middle position between the first angle and the second angle, and the fifth antenna branch is disposed close to the second antenna branch, and the sixth antenna branch is disposed close to the first antenna branch.

4. The folding device according to claim 3, characterized in that: The fifth antenna branch is used for transmitting and receiving cellular mobile communication signals in the second frequency band; The sixth antenna branch is used for sending and receiving Wi-Fi signals or Bluetooth signals.

5. The folding device according to claim 2, characterized in that: The folding device also includes: a third antenna branch, located on the first frame between the second antenna branch and the rotating shaft; a seventh antenna branch, located on the first frame between the first antenna branch and the rotating shaft; The third antenna branch and the seventh antenna branch are both used for transmitting and receiving wireless fidelity signals; or, for transmitting and receiving cellular mobile communication signals of the second frequency band and the third frequency band.

6. The folding device according to claim 5, characterized in that: The folding device also includes: The fourth antenna branch is located at the top of the foldable device and is spaced apart on the first frame between the second antenna branch and the third antenna branch, and is used for sending and receiving global positioning signals or wireless fidelity signals.

7. The folding device according to claim 2, characterized in that: The folding device further includes a third detection module and a fourth detection module, wherein the third detection module and the fourth detection module are used to detect the capacitance value of the capacitor formed between the folding device and the object being held; Wherein, the third detection module includes a twelfth antenna branch, and the fourth detection module includes a ninth antenna branch; The twelfth antenna branch and the ninth antenna branch are respectively located at two adjacent angles in the second frame away from the rotating shaft, and are both used for transmitting and receiving cellular mobile communication signals in the first frequency band.

8. The folding device according to claim 7, characterized in that: The folding device also includes: The tenth antenna branch and the eleventh antenna branch are arranged at intervals at a middle position between the third angle and the fourth angle adjacent to each other in the second frame, and the tenth antenna branch is arranged close to the ninth antenna branch, and the eleventh antenna branch is arranged close to the twelfth antenna branch, and the third angle and the fourth angle are both arranged away from the rotating shaft; The tenth antenna branch and the eleventh antenna branch are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

9. The folding device according to claim 7, characterized in that: The folding device also includes: an eighth antenna branch, located on the second frame between the ninth antenna branch and the rotating shaft; a thirteenth antenna branch, located on the second frame between the twelfth antenna branch and the rotating shaft; The eighth antenna branch and the thirteenth antenna branch are both used for transmitting and receiving cellular mobile communication signals in the second frequency band; or, transmitting and receiving wireless fidelity signals.

10. The folding device according to claim 7, characterized in that: When the folding device is in the unfolded state, the first antenna branch and the ninth antenna branch are symmetrically arranged on both sides of the rotating shaft; and / or the second antenna branch and the twelfth antenna branch are symmetrically arranged on both sides of the rotating shaft.

11. The folding device according to claim 2, characterized in that: The first branch section of the first antenna branch and the second branch section of the second antenna branch are located on the same side of the first frame; The length of the first branch segment and the length of the second branch segment are both greater than or equal to 30 mm.

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