terminal device

Abstract

This disclosure relates to a terminal device. The terminal device includes: a first frame, with a first radiator formed on the periphery of the first frame, and a first gap between the first radiator and the periphery edge of the first frame; a second frame, with a second radiator formed on the periphery of the second frame; a feed point located on the first radiator; a pivot structure connected to both the first and second frames, wherein when the first and second frames are engaged via the pivot structure, the first and second radiators are opposite each other; and a third radiator, located between the first and second radiators and opposite the first gap, for radiating coupled energy when the first and second radiators are coupled.

Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and more particularly to a terminal device. Background Technology

[0002] In related technologies, the antenna of a terminal device can be located in the mid-frame of the terminal device. When the first and second mid-frames of a foldable screen terminal device are fastened together by a hinge structure, the energy generated by the first radiator is transmitted to the second radiator through coupling because the first and second radiators are relatively close (approximately 2 mm). At the same time, some energy flows to the conductive first and second mid-frames and the hinge structure. Thus, a significant amount of energy is consumed inside the terminal device, resulting in a reduction in radiated energy and a corresponding decrease in low-frequency radiation efficiency. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a terminal device that can reduce the energy absorbed by the internal space of the terminal device, thereby reducing the energy consumption inside the terminal device and improving the problem of decreased radiation efficiency at low frequencies.

[0004] According to a first aspect of the present disclosure, a terminal device is provided, the terminal device comprising:

[0005] A first middle frame, a first radiator is formed on the periphery of the first middle frame, and a first gap is formed between the first radiator and the periphery edge of the first middle frame;

[0006] A second middle frame, with a second radiating element formed around its periphery;

[0007] The feed point is located on the first radiator;

[0008] A pivot structure is connected to the first middle frame and the second middle frame respectively. When the first middle frame and the second middle frame are fastened together by the pivot structure, the first radiator and the second radiator are opposite to each other.

[0009] A third radiator, located between the first and second radiators and opposite to the first gap, is used to radiate coupled energy when the first and second radiators are coupled.

[0010] In some embodiments, a second gap is provided between the second radiator and the outer periphery of the second middle frame;

[0011] The third radiator is positioned opposite the first gap and the second gap when the first middle frame and the second middle frame are fastened together by the pivot structure.

[0012] In some embodiments, the second gap is opposite to the first gap when the first middle frame and the second middle frame are fastened together by the pivot structure;

[0013] The third radiator is symmetrical about the first and second gaps, and the coverage area of ​​the third radiator is larger than the size of the first gap.

[0014] In some embodiments, the terminal device includes:

[0015] The display component is parallel to and opposite the first middle frame and the second middle frame; wherein, a first space with an opening is formed between the first edge of the display component and the first middle frame, and a second space with an opening is formed between the second edge of the display component and the second middle frame;

[0016] A protective structure is located between the display component and the first and second middle frames, covering the openings of the first and second spaces;

[0017] The third radiator is located on the protective structure opposite to the first gap.

[0018] In some embodiments, the protective structure includes:

[0019] A first protective structure is connected to the first edge of the display component and the first radiator, respectively, and covers the opening of the first space;

[0020] The third radiator is located on the side of the first protective structure facing the first space.

[0021] In some embodiments, the third radiator is formed on the inner side of the first protective structure facing the first middle frame, and is spaced apart from the first middle frame by the first space.

[0022] In some embodiments, the protective structure includes:

[0023] The second protective structure is connected to the second edge of the display component and the second radiator, respectively, and covers the opening of the second space;

[0024] The third radiator is located on the side of the second protective structure facing the second space.

[0025] In some embodiments, the third radiator is formed on the inner side of the second protective structure facing the second middle frame, and is spaced apart from the second middle frame by the second space.

[0026] In some embodiments, the third radiator includes a metal antenna formed on the surface of the protective structure using laser direct forming technology.

[0027] In some embodiments, when the first middle frame and the second middle frame are fastened together by the pivot structure, the first middle frame, the second middle frame and the pivot structure form a cavity, and at least a portion of the third radiator is located within the cavity.

[0028] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0029] In this embodiment, the terminal device may include: a first middle frame, a second middle frame, a power supply point, a hinge structure, and a third radiator; wherein, a first radiator is formed on the periphery of the first middle frame, and a first gap exists between the first radiator and the periphery edge of the first middle frame; a second radiator is formed on the periphery of the second middle frame. The power supply point is located on the first radiator; the hinge structure is connected to both the first and second middle frames, and when the first and second middle frames are engaged by the hinge structure, the first radiator and the second radiator are opposite to each other; the third radiator, when the first and second radiators are opposite to each other, is located between the first and second radiators and opposite to the first gap, and is used to radiate coupled energy when the first and second radiators are coupled.

[0030] By adding a third radiator between the first and second radiators, and positioning the third radiator opposite the first gap, the third radiator can radiate the coupled energy between the first and second radiators, thereby reducing the energy flowing into the internal space of the terminal device. This technical solution reduces energy absorption within the internal space of the terminal device, thus reducing energy consumption within the device and improving the problem of decreased radiation efficiency at low frequencies.

[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0033] Figure 1 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 1 ;

[0034] Figure 2This is a structural schematic diagram of a foldable screen mobile terminal in its unfolded state according to an exemplary embodiment;

[0035] Figure 3 This is a schematic diagram of the structure of a foldable screen mobile phone terminal in its unfolded state according to an exemplary embodiment;

[0036] Figure 4 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 2 ;

[0037] Figure 5 This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 1 ;

[0038] Figure 6 This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 2 ;

[0039] Figure 7 This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 3 ;

[0040] Figure 8 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 3 ;

[0041] Figure 9 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 4 ;

[0042] Figure 10 This is a graph showing the initial radiation efficiency of a terminal device in a snap-fit ​​state, according to an exemplary embodiment.

[0043] Figure 11 This is an initial radiation efficiency curve of a terminal device in a snap-fit ​​state after a third radiator is installed, according to an exemplary embodiment.

[0044] Figure 12 This is a schematic cross-sectional view of a terminal device according to an exemplary embodiment. Figure 1 ;

[0045] Figure 13 This is a side view of a terminal device according to an exemplary embodiment;

[0046] Figure 14 This is a schematic cross-sectional view of a terminal device according to an exemplary embodiment. Figure 2 ;

[0047] Figure 15This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 5 ;

[0048] Figure 16 This is a hardware structure block diagram of a terminal device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0050] Figure 1 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 1 ,like Figure 1 As shown, the terminal device includes:

[0051] A first middle frame 102, a first radiator 101 is formed on the periphery of the first middle frame 102, and a first gap 103 is formed between the first radiator 101 and the periphery edge of the first middle frame 102.

[0052] The second middle frame 106, and the periphery of the second middle frame 106 is formed with a second radiator 105;

[0053] The feed point 107 is located on the first radiator 101;

[0054] The pivot structure 108 is connected to the first middle frame 102 and the second middle frame 106 respectively. When the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the first radiator 101 and the second radiator 105 are opposite to each other.

[0055] The third radiator 109, when the first radiator 101 and the second radiator 105 are opposite each other, is located between the first radiator 101 and the second radiator 105 and is opposite to the first gap 103, for radiating coupled energy when the first radiator 101 and the second radiator 105 are coupled.

[0056] Here, terminal devices include mobile terminals and fixed terminals. Mobile terminals include smart home devices such as mobile phones, tablets, and smart speakers, while fixed terminals can include personal computer equipment, monitoring devices, medical equipment, etc.

[0057] In some embodiments, the terminal device may include a first middle frame 102, a second middle frame 106, a feed point 107, and a hinge structure 108; wherein a first radiator 101 is formed on the periphery of the first middle frame 102, and a second radiator 105 is formed on the periphery of the second middle frame 106. A first gap 103 is provided between the first radiator 101 and the peripheral edge of the first middle frame 102. The first radiator 101 and the second radiator 105 can be of any shape and are not limited herein. It should be noted that there is a gap between the first radiator 101 and the first middle frame 102, which can be considered as the antenna clearance area of ​​the first radiator 101. Metal has a shielding effect on antenna signals, and the interior of the terminal device is often filled with metal components. Therefore, in order not to affect antenna performance, the gap between the antenna and the metal components can be considered as the antenna clearance area.

[0058] Here, the feed point 107 is located on the first radiator 101. When the first radiator 101 receives an electrical signal through the feed point 107, current will flow on the first radiator 101. During the flow of current, a magnetic field will be generated. The energy generated by the first radiator 101 can be radiated through the first gap 103. It should be noted that in order to realize the function of the first gap 103 radiating the signal, the first gap 103 and the feed point 107 are on the same side of the first radiator 101.

[0059] In some embodiments, the first middle frame 102 and the second middle frame 106 are connected by a pivot structure 108. When the first middle frame 102 and the second middle frame 106 are engaged by the pivot structure 108, the first radiator 101 and the second radiator 105 are opposite to each other. It is understood that when the first middle frame 102 and the second middle frame 106 are unfolded by the pivot structure 108, the first middle frame 102 and the second middle frame 106 are symmetrically arranged about the pivot axis, and the first radiator 101 and the second radiator 105 are also symmetrically arranged about the pivot axis.

[0060] When the terminal device is in the locked state, the first radiator 101 receives electrical signals and generates energy through the power supply point 107. The second radiator 105, which is very close to the first radiator 101, will couple with the first radiator 101. At the same time, part of the energy coupled from the first radiator 101 to the second radiator 105 flows into the first middle frame 102, the second middle frame 106 and the rotating shaft structure 108, which have conductive properties.

[0061] In this embodiment, the energy generated by the first radiator 101 is further radiated by adding a third radiator 109, thereby reducing the coupling between the first radiator 101 and the second radiator 105 and reducing the energy flowing to the first middle frame 102, the second middle frame 106, and the rotating shaft structure 108. When the first radiator 101 and the second radiator 105 are facing each other, the third radiator 109 is located between the first radiator 101 and the second radiator 105.

[0062] It should be noted that since the energy generated by the first radiator 101 will be radiated out through the first gap 103, when the third radiator 109 is placed between the first radiator 101 and the second radiator 105, the third radiator 109 is positioned opposite the first gap 103, which can help radiate the energy generated by the first radiator 101.

[0063] In some embodiments, taking a foldable screen mobile phone terminal as an example, the foldable screen mobile phone terminal has two parts, namely a first part with a secondary screen and a second part with a battery back cover (e.g., a glass battery back cover). Figure 2 This is a structural schematic diagram of a foldable screen mobile phone terminal in its unfolded state according to an exemplary embodiment, as shown below. Figure 2 As shown, the displays of the first part, the first surface 110, and the second part, the first surface 111, together constitute the main screen of the foldable mobile phone terminal in its unfolded state.

[0064] Figure 3 This is a schematic diagram illustrating the structure of a foldable screen mobile phone terminal in its unfolded state according to an exemplary embodiment, such as... Figure 3 As shown, the display screen on the second side 112 of the first part is the secondary screen in the unfolded state of the back of the foldable mobile phone terminal, and the second side 113 of the second part is the battery back cover in the unfolded state of the back of the foldable mobile phone terminal. The first and second sides of the first part are located on opposite sides of the first part, and the first and second sides of the second part are located on opposite sides of the second part. The first middle frame 102 can be either the first part or the second part. Similarly, the first radiator is a part of the first middle frame 102 and can belong to either the first or the second part.

[0065] By adding a third radiator 109 between the first radiator 101 and the second radiator 105, and positioning the third radiator 109 opposite the first gap 103, the third radiator 109 can radiate the energy coupled between the first radiator 101 and the second radiator 105 when they are coupled, thereby reducing the energy flowing into the internal space of the terminal device. Through the technical solution of this disclosure, the energy absorbed by the internal space of the terminal device can be reduced, thereby reducing energy consumption within the terminal device and improving the problem of decreased radiation efficiency at low frequencies.

[0066] Figure 4 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 2 ,like Figure 4 As shown, a second gap 104 is present between the outer edges of the second radiator 105 and the second middle frame 106;

[0067] The third radiator 109 is opposite to the first gap 103 and the second gap 104 when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108.

[0068] In some embodiments, a second gap 104 is provided between the outer edges of the second radiator 105 and the second middle frame 106. It should be noted that there is a gap region between the second radiator 105 and the second middle frame 106, which can be the antenna clearance area of ​​the second radiator 105. In this case, if the feed point 107 is set on the second radiator 105, when the second radiator 105 receives an electrical signal through the feed point 107, current will flow on the second radiator 105. During the flow of current, a magnetic field will be generated. The energy generated by the second radiator 105 can be radiated through the second gap 104, and the second gap 104 and the feed point 107 are on the same side of the second radiator 105.

[0069] Here, as Figure 4 As shown, when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the first gap 103 is opposite to the second gap 104, and the third radiator 109 is simultaneously opposite to the first gap 103 and the second gap 104.

[0070] Figure 5 This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 1 ,like Figure 5As shown, when the first middle frame 102 and the second middle frame 106 are unfolded via the pivot structure 108, the first radiator 101 and the second radiator 105 are located on both sides of the terminal device, and the first gap 103 and the second gap 104 are located on the first radiator 101 and the second radiator 105, respectively, and are symmetrically arranged about the pivot structure 108. Figure 5 The third radiator 109 shown is located on the side where the first slit 103 is located. It should be noted that the third radiator 109 can be located on the side where the first slit 103 is located, or it can be located on the side where the second slit 104 is located.

[0071] In some embodiments, when it is necessary to place the third radiator 109 on a conductive metal such as the first radiator 101 or the second radiator 105, an insulator (such as plastic or rubber) needs to be added between the third radiator 109 and the conductive metal to isolate the third radiator 109 and the conductive metal, so as to prevent the conductive metal from affecting the performance of the third radiator 109.

[0072] In this embodiment, the second radiator 105 is positioned at a location corresponding to the first radiator 101, and the second radiator 105 has the same shape as the first radiator 101. The second radiator 105 can be configured as an antenna with the same radiation capability as the first radiator 101 as needed, and the position of the feed point 107 can also be adjusted according to actual needs.

[0073] In some embodiments, the first radiator 101 can be a bent structure having at least one first bend. Correspondingly, there can be at least one first gap, and each first gap is located at a corresponding first bend. The third radiator 109 is opposite to the first gap 103 located at the same first bend as the feed point 107. The first radiator 101 receives an electrical signal through the feed point 107 and radiates the generated energy through the first gap, which is located at the same first bend as the feed point 107. The third radiator 109 is located opposite the first gap.

[0074] For example, the first radiator may have a first bend and a first slit. Figure 6 This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 2 ,like Figure 6 As shown, the first gap 103 corresponds to the first bend 501, the power supply point 107 is also located on the first bend 501, and the third radiator 109 is located opposite to the first gap 103.

[0075] For example, the first radiator may have two first bends, and two first slits may correspond to the two first bends respectively. Figure 7This is a schematic diagram of the structure of a terminal device in its unfolded state according to an exemplary embodiment. Figure 3 ,like Figure 7 As shown, a first slit 601 corresponds to a first bend 602, and another first slit 603 corresponds to another first bend 604. A feed point 107 is located on a first bend 602, and both a first slit 601 and a feed point 107 are located on a first bend 602. A third radiator 109 is positioned opposite to a first slit 601.

[0076] In some embodiments, the first radiator may have two first bends, a feed point, and a first gap, with the feed point and the first gap both located on one of the first bends. For the first radiator, when receiving an electrical signal through the feed point, energy is radiated through the first gap, while the other gaps do not have the function of radiating energy. Alternatively, the first gap may be provided only on the first bend where the feed point is located.

[0077] In this embodiment, the first radiator can be configured as a bent structure with at least one first bend to adapt to the shape of the terminal device, and the position of the third radiator 109 is opposite to the first gap located at the same first bend as the feed point 107, so that the energy radiation function of the third radiator 109 can be fully utilized. In other embodiments, at least one third radiator may also be provided, and when the first middle frame 102 and the second middle frame 106 are fastened together, each third radiator is opposite to each of the first gaps, which is not specifically limited here.

[0078] In some embodiments, the second radiator 105 may be a bent structure having at least one second bend; when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the second bend is opposite to the corresponding first bend, and the second gap 104 on the second bend is opposite to the first gap 103 of the corresponding first bend.

[0079] Here, the second radiator 105 can be a bent structure with at least one second bend, and correspondingly, there can be at least one second gap, with each second gap located at its corresponding second bend. When the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the second bends are respectively opposite to the first bends.

[0080] For example, the first radiator may have a first bend and a first slit, and correspondingly, the second radiator may have a second bend and a second slit, such as... Figure 6As shown, the first gap 103 and the second gap 104 are located on the first bend 501 and the second bend 502, respectively. The first bend 501 and the second bend 502 are symmetrical about the pivot structure 108. Correspondingly, the second gap 104 and the first gap 103 are symmetrical about the pivot structure 108. The feed point 107 is located on the first bend 501, and the third radiator 109 is located at a position opposite to the first gap 103.

[0081] For example, the first radiator may have two first bends, and correspondingly, the second radiator may have two second bends opposite to the first bends. Figure 8 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 3 ,like Figure 8 As shown, one second bend 701 corresponds to one first bend 602, and another second bend 702 corresponds to another first bend 604. Two second gaps are located on the two second bends and are opposite to the two first gaps, i.e., one second gap 703 is opposite to one first gap 601, and the other second gap 704 is opposite to the other first gap 603. A feed point 107 is located on one first bend 602, and a third radiator 109 is positioned opposite one first gap 601 and one second gap 703.

[0082] In this embodiment of the present disclosure, the second radiator 105 and the first radiator 101 are symmetrically arranged about the rotating shaft structure 108. Therefore, when setting the second radiator 105, the shape and position of the second bend and the second gap 104 can be set according to the arrangement of the first bend and the first gap 103 in the first radiator 101.

[0083] In this embodiment, the second radiator can be configured as a bent structure with at least one second bend to adapt to the shape of the terminal device. When the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the second bend is opposite to the corresponding first bend, and the second gap on the second bend is opposite to the first gap of the corresponding first bend. In this way, when the third radiator 109 and the first gap of the same first bend located at the feed point 107 are opposite, they can also be opposite to the corresponding second gap, so that the energy radiation function of the third radiator 109 can be fully utilized.

[0084] In some embodiments, when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the first middle frame 102, the second middle frame 106 and the pivot structure 108 form a cavity, and at least a portion of the third radiator 109 is located within the cavity.

[0085] Here, with the first middle frame 102 and the second middle frame 106 fastened together by the pivot structure 108, the first middle frame 102, the second middle frame 106, and the pivot structure 108 form a cavity. The opening of the cavity faces three sides different from the pivot structure 108. At least a portion of the third radiator 109 is located within the cavity. The projection of the first portion of the third radiator 109 onto the first middle frame 102 is located on the first middle frame 102. The projection of the second portion of the third radiator 109 onto the first middle frame 102 is located at the first gap 103. The projection of the third portion of the third radiator 109 is located on the first radiator 101. The second portion of the third radiator 109 is located between the first portion and the third portion of the third radiator 109. When the first radiator 101 generates energy, the cavity formed by the first middle frame 102, the second middle frame 106 and the rotating shaft structure 108 will absorb the energy generated by the first radiator 101, causing internal energy loss. This results in a decrease in radiation efficiency of the terminal device at low frequencies, and a dip in the radiation efficiency curve.

[0086] In this embodiment of the disclosure, the larger the volume of the cavity formed by the first middle frame 102, the second middle frame 106 and the rotating shaft structure 108, the smaller the frequency point represented by the depression in the radiation efficiency curve.

[0087] In this embodiment, the area formed by the first middle frame 102, the second middle frame 106 and the pivot structure 108, which have conductive properties, is used as a cavity. This makes it easier to analyze the problem of reduced radiation efficiency at low frequencies when the terminal device is in the latched state. At least part of the third radiator 109 is located in the cavity, which can better radiate the energy generated by the first radiator 101 without being absorbed by the cavity and causing internal energy loss.

[0088] In some embodiments, the second gap 104 is opposite to the first gap 103 when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108;

[0089] The third radiator 109 is symmetrical about the first slit 103 and the second slit 104, and the coverage area of ​​the third radiator 109 is larger than the size of the first slit 103.

[0090] Here, the coverage area of ​​the third radiator 109 corresponds to the shape and size of the third radiator 109. For example, the coverage area of ​​the third radiator 109 can be characterized by its projected area; that is, the larger the projected area of ​​the third radiator 109, the larger the coverage area.

[0091] In this embodiment of the present disclosure, when the first radiator 101 and the second radiator 105 are opposite each other, the third radiator 109 is located between the first radiator 101 and the second radiator 105, and is opposite to the first gap 103. In some embodiments, such as Figure 4 As shown, the first gap 103 can be located on the first radiator 101 parallel to the rotating shaft structure 108, and the projection of the third radiator 109 on the first radiator 101 at least partially overlaps with the projection of the first gap 103. In other words, the projected area of ​​the third radiator 109 is larger than the projected area of ​​the first gap 103. The projection of the third radiator 109 on the first radiator 101 and the second radiator 105 can be rectangular, with the side parallel to the rotating shaft structure 108 being the length of the third radiator 109, and the side perpendicular to the rotating shaft structure 108 being the width of the third radiator 109.

[0092] In other embodiments, Figure 9 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 4 ,like Figure 9 As shown, the first gap 103 can be located on the first radiator 101 perpendicular to the rotating shaft structure 108, and the projection of the third radiator 109 on the first radiator 101 overlaps at least with the projection of the first gap 103. In other words, the projection area of ​​the third radiator 109 is larger than the projection area of ​​the first gap 103. The projection of the third radiator 109 on the first radiator 101 and the second radiator 105 can be rectangular, with the side perpendicular to the rotating shaft structure 108 being the length of the third radiator 109 and the side parallel to the rotating shaft structure 108 being the width of the third radiator 109.

[0093] Here, with the first middle frame 102 and the second middle frame 106 fastened together by the pivot structure 108, the second gap 104 is opposite to the first gap 103, and the third radiator 109 is symmetrical about the first gap 103 and the second gap 104. In other words, the center point of the third radiator 109 is on the same straight line as the center point of the first gap 103 and the center point of the second gap 104, that is, the third radiator 109 is symmetrical about the center point of the first gap 103 and the center point of the second gap 104.

[0094] The coverage area of ​​the third radiator 109 needs to be larger than the size of the first gap 103. The size of the first gap 103 corresponds to the coverage area of ​​the third radiator 109, and it must at least cover the first gap 103. That is, the area of ​​the third radiator 109 is greater than or equal to the area of ​​the first gap 103. At this time, the width of the third radiator 109 is greater than or equal to the width of the side of the first gap 103 in the direction parallel to the width of the third radiator 109, and the length of the third radiator 109 is greater than the width of the side of the first gap 103 in the direction parallel to the length of the third radiator 109.

[0095] It should be noted that the length of the third radiator 109 can be obtained from the radiation efficiency curve of the terminal equipment. Figure 10 This is a graph illustrating the initial radiation efficiency of a terminal device in its snap-fit ​​state, according to an exemplary embodiment. Figure 10 As shown, the radiation efficiency curve can be a 'F'-shaped curve that gradually rises from low to high frequencies. However, because some of the energy generated by the first radiator is absorbed by the conductive first and second middle frames and the rotating shaft structure, the energy loss inside the terminal device is significant, resulting in a decrease in the radiation efficiency of the terminal device. In radiation efficiency curve 1000, the radiation efficiency at frequency point 1002 is approximately 2.5 lower than that at the adjacent frequency point 1001. Here, the length of the third radiator 109 is determined based on the frequency point where the radiation efficiency decreases significantly, i.e., where a dip appears in the radiation efficiency curve.

[0096] As can be seen, the coordinates of frequency point 1002 are (0.9166601, -11.54476), with the horizontal axis representing the frequency of frequency point 1002 and the vertical axis representing the system radiation efficiency of frequency point 1002. Based on the frequency of frequency point 1002 and the electromagnetic wave rate, the wavelength corresponding to frequency point 1002 can be calculated, thereby determining the length of the projection of the third radiator 109. The most effective length of the third radiator 109 is one-quarter of the calculated wavelength. The corresponding calculation formula is as follows:

[0097]

[0098] In formula (1), λ is the wavelength and v is the electromagnetic wave velocity 3*10 8 meters per second (m / s), f is the frequency.

[0099] Figure 11 This is an example of an exemplary embodiment illustrating the initial radiation efficiency curve of a terminal device in a snap-fit ​​state after the third radiator is installed. Figure 11 As shown in the radiation efficiency curve 1100, the radiation efficiency at frequency 1102 is approximately 1 lower than that at the neighboring frequency 1101, but is approximately 1.5 higher than that before the third radiator 109 was installed.

[0100] In this embodiment of the disclosure, by setting a third radiator 109 and symmetrically configuring the third radiator 109 with respect to the first gap 103 and the second gap 104, the problem of reduced radiation efficiency of the terminal device at low frequencies can be effectively improved; the third radiator 109 covers the first gap 103, which can maximize the radiation effect of the third radiator 109 and reduce the energy loss inside the terminal device.

[0101] In some embodiments, the terminal device includes:

[0102] Display component 118 is parallel to and opposite to the first middle frame 102 and the second middle frame 106; wherein, a first space 114 with an opening is formed between the first edge of the display component and the first middle frame 102, and a second space with an opening is formed between the second edge of the display component and the second middle frame 106.

[0103] The protective structure 1201 is located between the display component 118 and the first middle frame 102 and the second middle frame 106, covering the opening of the first space 114 and the opening of the second space;

[0104] The third radiator 109 is located on the protective structure 1201 at a position opposite to the first gap 103.

[0105] Here, the display component 118 is parallel and opposite to the first middle frame 102 and the second middle frame 106, as shown below. Figure 2 As shown, the displays of the first part, the first surface 110, and the second part, the first surface 111, together constitute the main screen of the foldable mobile phone terminal in the unfolded state, which is the display component 118. Figure 12 This is a schematic cross-sectional view of a terminal device according to an exemplary embodiment. Figure 1 ,like Figure 12 As shown, a first space 114 with an opening is formed between the first edge of the display component 118 and the first middle frame 102. The protective structure 1201 is located between the display component 118 and the first middle frame 102, covering the opening of the first space 114.

[0106] Figure 13 This is a side view of a terminal device illustrated according to an exemplary embodiment, such as... Figure 13 As shown, when the first middle frame 102 and the second middle frame 106 are unfolded via the pivot structure 108, the first middle frame 102 and the second middle frame 106 are symmetrical about the pivot structure 108. The display component 118 is located on the first middle frame 102 and the second middle frame 106, and is parallel to and opposite to the first middle frame 102 and the second middle frame 106. Correspondingly, a second space with an opening is formed between the second edge of the display component 118 and the second middle frame 106. The second space is symmetrical to the first space about the pivot structure 108. The protective structure 1201 can also be located between the display component and the second middle frame 106, covering the opening of the second space.

[0107] In some embodiments, the protective structure 1201 can be made of an insulating material, such as plastic or rubber. Since the protective structure 1201 is made of an insulating material and covers the openings of the first space 114 and the second space, by placing the third radiator 109 on the protective structure 1201 at a position opposite to the first gap 103, isolation can be achieved between the conductive frame and the third radiator 109, preventing the conductive frame from affecting the radiation function of the third radiator 109. By reusing the protective structure 1201 of the terminal device to achieve isolation between the conductive frame and the third radiator 109, the manufacturing cost of the terminal device can be saved compared to additionally setting an isolation component.

[0108] In this embodiment of the disclosure, when the first middle frame 102 and the second middle frame 106 are fastened together by the pivot structure 108, the protective structure 1201 can be used to support the first middle frame 102 and the second middle frame 106, reducing the possibility that the display component 118 located on the first middle frame 102 and the second middle frame 106 may deform or break due to excessive bending of the first middle frame 102 and the second middle frame 106.

[0109] Figure 14 This is a schematic cross-sectional view of a terminal device according to an exemplary embodiment. Figure 2 ,like Figure 14 As shown, the protective structure includes:

[0110] The first protective structure 116 is connected to the first edge of the display component and the first radiator 101 respectively, covering the opening of the first space 114;

[0111] The third radiator 109 is located on the side of the first protective structure 116 facing the first space 114.

[0112] Here, the first protective structure 116 is connected to the first edge of the display component and the first radiator 101, respectively, and can be used to cover the opening of the first space 114, which is formed by the first edge of the display component and the first middle frame 102. The third radiator 109 can be located on the side of the first protective structure 116 facing the first space 114, that is, the third radiator 109 can be located within the space where the first space is located. In some embodiments, the third radiator 109 can be located on the side of the first protective structure 116 parallel to the first middle frame 102, or the third radiator 109 can be located on the side of the first protective structure 116 that forms an angle with the first middle frame 102.

[0113] In this embodiment, by placing the third radiator 109 on the first protective structure 116 at a position opposite to the first gap 103, isolation between the first radiator 101 and the third radiator 109 can be achieved, preventing the first radiator 101 from affecting the radiation function of the third radiator 109. By reusing the first protective structure 116 of the terminal device to achieve isolation between the first radiator 101 and the third radiator 109, the manufacturing cost of the terminal device can be saved compared to setting an additional isolation component.

[0114] In some embodiments, the third radiator 109 is formed on the inner side of the first protective structure 116 facing the first middle frame 102, and is spaced apart from the first middle frame 102 by the first space 114.

[0115] Here, the third radiator 109 is formed on the inner side of the first protective structure 116 facing the first middle frame 102. That is, the third radiator 109 is located in the space where the first space 114 is located, and is located on the first protective structure 116 on a side parallel to the first middle frame 102. The third radiator 109 is separated from the first middle frame 102 by the first space formed between the first edge of the display component and the first middle frame 102.

[0116] In this embodiment of the present disclosure, the isolation between the third radiator 109 and the first middle frame 102 can be achieved through the first space 114 formed in the terminal device. In this way, the first space 114 in the terminal device can be fully utilized, thereby improving the space utilization rate in the terminal device.

[0117] In some embodiments, the protective structure includes:

[0118] The second protective structure 117 is connected to the second edge of the display component and the second radiator 105 respectively, covering the opening of the second space;

[0119] The third radiator 109 is located on the side of the second protective structure 117 facing the second space.

[0120] Here, the second protective structure 117 is connected to the second edge of the display component and the second radiator 105, respectively, and can be used to cover the opening of the second space, which is formed by the second edge of the display component and the second middle frame 106. The third radiator 109 can be located on the side of the second protective structure 117 facing the second space, that is, the third radiator 109 can be located within the space where the second space is located. In some embodiments, the third radiator 109 can be located on the side of the second protective structure 117 parallel to the second middle frame 106, or the third radiator 109 can be located on the side of the second protective structure 117 having an angle with the second middle frame 106.

[0121] In this embodiment, by placing the third radiator 109 on the second protective structure 117 at a position opposite to the first gap 103, isolation between the second radiator 105 and the third radiator 109 can be achieved, preventing the second radiator 105 from affecting the radiation function of the third radiator 109. By reusing the second protective structure 117 of the terminal device to achieve isolation between the second radiator 105 and the third radiator 109, the manufacturing cost of the terminal device can be saved compared to setting an additional isolation component.

[0122] In some embodiments, the third radiator is formed on the inner side of the second protective structure facing the second middle frame, and is spaced apart from the second middle frame by the second space.

[0123] Here, the third radiator 109 is formed on the inner side of the second protective structure 117 facing the second middle frame 106. That is, the third radiator 109 is located in the space where the second space is located, and is located on the second protective structure 117 on a side parallel to the second middle frame 106. The third radiator 109 is separated from the second middle frame 106 by the second space formed between the second edge of the display component and the second middle frame 106.

[0124] In this embodiment of the present disclosure, the isolation between the third radiator 109 and the second middle frame 106 can be achieved through the second space formed in the terminal device. In this way, the second space in the terminal device can be fully utilized, thereby improving the space utilization rate in the terminal device.

[0125] In this embodiment of the disclosure, Figure 15 This is a schematic diagram of the terminal device in its snap-fit ​​state according to an exemplary embodiment. Figure 5 ,like Figure 15 As shown, when the terminal device is in the locked state, the first protective structure 116 covers the first edge of the display component and forms a first space 114 with an opening between it and the first middle frame 102, and the second protective structure 117 covers the second edge of the display component and forms a second space with an opening between it and the second middle frame 106. Here, the first surface of the first middle frame 102 and the first surface of the second middle frame 106 are opposite to each other. In some embodiments, the first surface of the first middle frame 102 can be an insulating material, for example, the first surface of the first middle frame 102 can be the display screen of the terminal device, which can be made of glass; the first surface of the second middle frame 106 can also be an insulating material, for example, the first surface of the second middle frame 106 can be the display screen of the terminal device, which can be made of glass.

[0126] In this way, when the terminal device is in the locked state, the first protective structure 116 and the second protective structure 117 can contact each other and jointly support the first middle frame 102 and the second middle frame 106. On the one hand, this prevents the first surface of the first middle frame 102 and the first surface of the second middle frame 106 from contacting each other and causing friction, which could damage the first surface of either the first middle frame 102 or the first surface of the second middle frame 106. On the other hand, it reduces the possibility of excessive bending of the first middle frame 102 and the second middle frame 106, which could lead to deformation or breakage. Simultaneously, it also provides some protection for the components inside the first middle frame 102 and the second middle frame 106.

[0127] In some embodiments, the third radiator 109 includes a metal antenna formed on the surface of the protective structure using laser direct forming technology.

[0128] Here, the third radiator 109 can be a metal antenna formed using laser direct structuring (LDS) technology. For example, the third radiator 109 can be formed by laser-etching metals such as copper or nickel onto the surface of an insulating material using LDS technology.

[0129] The third radiator 109 can also be a metal antenna formed by printing technology. For example, silver paste can be printed onto an insulating substrate to form the third radiator 109. Of course, the third radiator 109 can also be formed by electroplating gold onto an insulating material, and no specific limitation is made here.

[0130] In some embodiments, the third radiator 109 can be formed on the side of the first protective structure 116 facing the first middle frame 102, and at a position opposite to the first gap, separated from the first middle frame 102 by a first space 114, and can be formed by laser direct forming technology, printing technology, or electroplating. The first protective structure 116 is made of insulating material, the first middle frame 102 is made of conductive material, and the third radiator 109 is made of conductive material. Thus, by separating the third radiator 109 from the first middle frame 102 through the first space 114, the radiation function of the third radiator 109 can be ensured to be unaffected by the first middle frame 102.

[0131] By placing the third radiator 109 on the first protective structure 116, the energy generated by the first radiator and that may flow to the first middle frame 102, the second middle frame 106 and the pivot structure can be radiated, thereby reducing the energy loss caused by the first middle frame 102, the second middle frame 106 and the pivot structure.

[0132] In other embodiments, the third radiator 109 may also be formed on the side of the second protective structure 117 facing the second middle frame 106, and at a position opposite to the first gap. It is separated from the second middle frame 106 by a second space and can be formed using laser direct forming technology, printing technology, or electroplating. The second protective structure 117 is made of insulating material, the second middle frame 106 is made of conductive material, and the third radiator 109 is made of conductive material. Thus, by separating the third radiator 109 from the second middle frame 106 through the second space, the radiation function of the third radiator 109 can be ensured to be unaffected by the second middle frame 106. The third radiator 109, disposed on the second protective structure 117, can help improve the overall radiation efficiency of the terminal device while reducing internal energy loss.

[0133] It should be noted that the third radiator 109 is made of conductive material. In order to reduce the impact of other conductive metals on the radiation function of the third radiator 109, the third radiator 109 does not come into contact with the conductive material structure on the terminal device.

[0134] In this embodiment of the present disclosure, a third radiator 109 is formed on the first protective structure 116 or the second protective structure 117. This not only improves the problem of reduced radiation efficiency at low frequencies caused by energy absorption by the first middle frame 102, the second middle frame 106 and the pivot structure, but also does not occupy the space of the first protective structure 116 and the second protective structure 117 themselves.

[0135] In some embodiments, a first accommodating space may be formed on the inner side of the first protective structure 116 facing the first middle frame 102. This first accommodating space can be a groove disposed on the first protective structure 116. The first accommodating space has an opening facing the first middle frame 102. The third radiator 109 is located within the first accommodating space, and the third radiator 109 can be exposed through the opening of the first accommodating space. That is, the surface of the third radiator 109 needs to be exposed through this opening to facilitate the third radiator 109's function of radiating energy. It should be noted that the thickness of the third radiator 109 should be less than the depth of the first accommodating space, and the third radiator 109 should not contact any conductive metal on the terminal device.

[0136] By forming a first accommodating space on the first protective structure 116 to accommodate the third radiator 109, the formation of the third radiator 109 is not limited to the surface of the first protective structure 116. Conductive metal can also be placed in the first accommodating space as the third radiator 109, which can also radiate energy and improve the problem of reduced radiation efficiency of terminal equipment at low frequencies.

[0137] In other embodiments, a second receiving space may be formed on the inner side of the second protective structure 117 facing the second middle frame 106. This second receiving space may be a groove disposed on the second protective structure 117. The second receiving space has an opening facing the second middle frame 106. The third radiator 109 is located within the second receiving space, and the third radiator 109 can be exposed through the opening of the second receiving space. That is, the surface of the third radiator 109 needs to be exposed through the opening to facilitate the third radiator 109 in radiating energy. It should be noted that the thickness of the third radiator 109 should be less than the depth of the second receiving space, and the third radiator 109 should not be in contact with any conductive metal on the terminal device.

[0138] By forming a second accommodating space on the second protective structure 117 to accommodate the third radiator 109, the formation of the third radiator 109 is not limited to the surface of the second protective structure 117. Conductive metal can also be placed in the second accommodating space as the third radiator 109, which can also radiate energy and improve the problem of reduced radiation efficiency of terminal equipment at low frequencies.

[0139] Figure 16 This is a hardware structure block diagram of a terminal device according to an exemplary embodiment of the present disclosure. For example, the terminal device 1700 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0140] Reference Figure 16 The terminal device 1700 may include one or more of the following components: a processing component 1702, a memory 1704, a power supply component 1706, a multimedia component 1708, an audio component 1710, an input / output (I / O) interface 1712, a sensor component 1714, and a communication component 1716.

[0141] Processing component 1702 typically controls the overall operation of terminal device 1700, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1702 may include one or more processors 1720 to execute instructions. Furthermore, processing component 1702 may include one or more modules to facilitate interaction between processing component 1702 and other components. For example, processing component 1702 may include a multimedia module to facilitate interaction between multimedia component 1708 and processing component 1702.

[0142] Memory 1704 is configured to store various types of data to support the operation of terminal device 1700. Examples of this data include instructions for any application or method operating on terminal device 1700, contact data, phonebook data, messages, pictures, videos, etc. Memory 1704 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 storage, flash memory, magnetic disk, or optical disk.

[0143] Power supply component 1706 provides power to various components of terminal device 1700. Power supply component 1706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal device 1700.

[0144] Multimedia component 1708 includes a screen that provides an output interface between the terminal device 1700 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 touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1708 includes a front-facing camera and / or a rear-facing camera. When the terminal device 1700 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0145] Audio component 1710 is configured to output and / or input audio signals. For example, audio component 1710 includes a microphone (MIC) configured to receive external audio signals when terminal device 1700 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1704 or transmitted via communication component 1716. In some embodiments, audio component 1710 also includes a speaker for outputting audio signals.

[0146] I / O interface 1712 provides an interface between processing component 1702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0147] Sensor assembly 1714 includes one or more sensors for providing status assessments of various aspects of terminal device 1700. For example, sensor assembly 1714 may detect the on / off state of terminal device 1700, the relative positioning of components such as the display and keypad of terminal device 1700, changes in position of terminal device 1700 or a component of terminal device 1700, the presence or absence of user contact with terminal device 1700, the orientation or acceleration / deceleration of terminal device 1700, and temperature changes of terminal device 1700. Sensor assembly 1714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1714 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0148] Communication component 1716 is configured to facilitate wired or wireless communication between terminal device 1700 and other devices. Terminal device 1700 can access wireless networks based on communication standards, such as Wi-Fi, 4G, or 5G, or combinations thereof. In one exemplary embodiment, communication component 1716 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1716 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0149] In an exemplary embodiment, the terminal device 1700 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.

[0150] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0151] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A terminal device, characterized in that, The terminal device includes: A first middle frame, a first radiator is formed on the periphery of the first middle frame, and a first gap is formed between the first radiator and the periphery edge of the first middle frame; A second middle frame, with a second radiating element formed around its periphery; The feed point is located on the first radiator; A pivot structure is connected to the first middle frame and the second middle frame respectively. When the first middle frame and the second middle frame are fastened together by the pivot structure, the first radiator and the second radiator are opposite to each other. A third radiator, located between the first and second radiators and opposite to the first gap, is used to radiate coupled energy when the first and second radiators are coupled.

2. The terminal device according to claim 1, characterized in that, A second gap exists between the second radiator and the outer edge of the second middle frame; The third radiator is positioned opposite the first gap and the second gap when the first middle frame and the second middle frame are fastened together by the pivot structure.

3. The terminal device according to claim 2, characterized in that, The second gap is opposite to the first gap when the first middle frame and the second middle frame are fastened together by the pivot structure; The third radiator is symmetrical about the first and second gaps, and the coverage area of ​​the third radiator is larger than the size of the first gap.

4. The terminal device according to claim 1, characterized by The terminal device includes: The display component is parallel to and opposite the first middle frame and the second middle frame; wherein, a first space with an opening is formed between the first edge of the display component and the first middle frame, and a second space with an opening is formed between the second edge of the display component and the second middle frame; A protective structure is located between the display component and the first and second middle frames, covering the openings of the first and second spaces; The third radiator is located on the protective structure opposite to the first gap.

5. The terminal device according to claim 4, characterized by The protective structure includes: A first protective structure is connected to the first edge of the display component and the first radiator, respectively, and covers the opening of the first space; The third radiator is located on the side of the first protective structure facing the first space.

6. The terminal device according to claim 5, characterized in that, The third radiator is formed on the inner side of the first protective structure facing the first middle frame, and is separated from the first middle frame by the first space.

7. The terminal device according to claim 4, characterized by The protective structure includes: The second protective structure is connected to the second edge of the display component and the second radiator, respectively, and covers the opening of the second space; The third radiator is located on the side of the second protective structure facing the second space.

8. The terminal device according to claim 7, characterized in that, The third radiator is formed on the inner side of the second protective structure facing the second middle frame, and is separated from the second middle frame by the second space.

9. The terminal device according to claim 4, characterized in that, The third radiator includes a metal antenna formed on the surface of the protective structure using laser direct forming technology.

10. The terminal device according to any one of claims 1-9, characterized in that, When the first middle frame and the second middle frame are fastened together by the pivot structure, the first middle frame, the second middle frame and the pivot structure form a cavity, and at least a portion of the third radiator is located within the cavity.

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