Terminal device

Abstract

A terminal device relates to the technical field of electronic products. A first device group (100) in the terminal device comprises at least one of a processor chip, a baseband chip, a radio frequency component and a camera component; one end of the flexible circuit board (400) is connected with the first circuit board (110) of the first device group (100), and the other end of the flexible circuit board (400) is provided with a first branch circuit (411) and a second branch circuit (420); the second device group (200) and the third device group (300) are electrically connected with the first branch circuit (411) and the second branch circuit (420) respectively. According to the invention, the integrated flexible circuit board (400) can be formed, the number of flexible circuit boards (400) is reduced, and the cost can be reduced; in addition, the reduction of the number of the flexible circuit boards (400) facilitates the simplification of the structural arrangement in the terminal device, facilitates the reduction of the failure rate of the flexible circuit boards (400), reduces the assembly interference on the battery (700), facilitates the improvement of the connection stability of the battery (700) and the stability of the output voltage, facilitates the reduction of the possibility of crash and automatic shutdown of the terminal device, and improves the reliability of the terminal device. And the use stability of the terminal equipment is improved.

Description

terminal equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 29, 2022, with application number 202211709593.X and application name “Terminal Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic products, and in particular to a terminal device. Background Art

[0003] As the use of mobile phones, tablets and other terminal devices increases, the stability of terminal devices has become an increasingly important evaluation indicator. However, some terminal devices may still freeze or automatically shut down during use, which reduces the stability of terminal devices.

[0004] Summary of the Invention

[0005] The present application provides a terminal device to facilitate improving usage stability.

[0006] In a first aspect, the present application provides a terminal device, which includes a first component group, a second component group, a third component group and a flexible circuit board, wherein the first component group includes a first circuit board, on which at least one of a processor chip, a baseband chip, a radio frequency component and a camera component is provided; one end of the flexible circuit board is connected to the first circuit board, and the other end of the flexible circuit board is provided with a first branch and a second branch; the second component group is electrically connected to the first branch; and the third component group is electrically connected to the second branch.

[0007] By connecting one end of the flexible circuit board to the first circuit board, electrically connecting the second device group to the first branch at the other end of the flexible circuit board, and electrically connecting the third device group to the second branch at the other end of the flexible circuit board, an integrated flexible circuit board is formed, which reduces the number of flexible circuit boards and helps reduce costs. In addition, the reduction in the number of flexible circuit boards helps simplify the structural arrangement in the terminal device and helps reduce the failure rate of the flexible circuit boards, and reduces interference with the assembly of the battery, which helps improve the connection stability of the battery and the stability of the output voltage, helps reduce the possibility of the terminal device freezing or automatically shutting down, and helps improve the stability of the terminal device in use.

[0008] In one possible implementation, the two ends of the flexible circuit board are respectively connected to the first component group and the second component group, and the first branch is arranged on the end of the flexible circuit board facing away from the first component group; the terminal device has a first direction and a second direction, the first direction is set as the direction from the first component group to the second component group, the first direction intersects with the second direction, and the second direction is set parallel to the plane of the flexible circuit board; along the second direction, the second branch is arranged between the two side edges of the flexible circuit board or the second branch is arranged on the side edge of the flexible circuit board.

[0009] In another possible implementation, a first penetrating structure is provided on the flexible printed circuit board, and the second branch is provided on a side wall of the first penetrating structure.

[0010] In another possible implementation, when the second branch is arranged between the two side edges of the flexible circuit board along the second direction, the first penetrating structure is set as a through hole; when the second branch is arranged on the side edge of the flexible circuit board, the first penetrating structure is set as a first notch.

[0011] In another possible implementation, the terminal device further includes a communication card mounting portion; when the second branch is arranged on the side of the flexible circuit board along the second direction, the communication card mounting portion is arranged on the side of the flexible circuit board facing away from the second branch.

[0012] In another possible implementation, the terminal device further includes a connecting frame having a first side and a second side arranged opposite to each other; the second component group is arranged on the first side, and the first component group and the third component group are both arranged on the second side; a second through-structure and a third through-structure are provided on the connecting frame, one end of the flexible circuit board passes through the second through-structure from the first side to be electrically connected to the first component group, and the second branch passes through the third through-structure from the first side to be electrically connected to the third component group.

[0013] In another possible implementation, the terminal device further includes a battery and a first adhesive layer, the battery is arranged on the second side; the first component group and the third component group are spaced apart, and the battery and the first adhesive layer are both arranged between the first component group and the third component group; the first adhesive layer is arranged between the battery and the connecting frame, and the two sides of the first adhesive layer are respectively bonded to the battery and the connecting frame; a second notch is provided on the side of the first adhesive layer facing the first component group, and the second notch is connected to the second through-structure.

[0014] In another possible implementation, the connecting frame includes a connecting plate, and a first vertical plate and a second vertical plate are provided on the second side of the connecting plate; the first component group is arranged on the side of the first vertical plate facing away from the second vertical plate, the battery and the first adhesive layer are both arranged between the first vertical plate and the second vertical plate, and the third component group is arranged on the side of the second vertical plate facing away from the first vertical plate; the second penetrating structure is arranged on the connecting plate, and the second penetrating structure is arranged between the first vertical plate and the second vertical plate or the second penetrating structure is arranged on the side of the first vertical plate facing away from the second vertical plate.

[0015] In another possible implementation, when the second penetrating structure is disposed between the first vertical plate and the second vertical plate, a distance from the second penetrating structure to the first vertical plate is smaller than a distance from the second penetrating structure to the second vertical plate.

[0016] In another possible implementation, when the second through-structure is arranged between the first vertical plate and the second vertical plate, a groove is provided on the connecting plate, and the groove extends along the direction from the first component group to the second component group, and the end of the groove is connected to the second through-structure; along the direction from the first component group to the second component group, part of the flexible circuit board is accommodated in the groove.

[0017] In another possible implementation, the terminal device further includes a second adhesive layer, which is disposed in the groove, and two sides of the second adhesive layer are respectively bonded to the flexible circuit board and the wall of the groove.

[0018] In another possible implementation, a third notch is provided on a side of the first vertical plate facing away from the connecting plate, and the flexible circuit board is at least partially accommodated in the third notch along the thickness direction.

[0019] In another possible implementation, the flexible circuit board is provided with a first bending portion, a second bending portion and a third bending portion, and the first bending portion, the second bending portion and the third bending portion are arranged in a direction from the first component group to the second component group; the flexible circuit board has a first angle between a portion of the first bending portion facing away from the second bending portion and the board plane of the connecting plate, a portion of the flexible circuit board between the first bending portion and the second bending portion and the board plane of the first vertical plate, and a third angle between a portion of the third bending portion facing away from the second bending portion and the board plane of the connecting plate, and the first angle, the second angle and the third angle are all set to be greater than or equal to 0 degrees and less than 90 degrees.

[0020] In another possible implementation, the flexible circuit board includes a main body section, both ends of which are respectively connected to the first component group and the second component group, and the first branch is arranged on the end of the main body section facing away from the first component group; the third penetrating structure is arranged on the connecting plate, the third penetrating structure is arranged on the side of the second vertical plate facing away from the first vertical plate, or the third penetrating structure is arranged between the first vertical plate and the second vertical plate and the distance from the third penetrating structure to the second vertical plate is less than the distance from the third penetrating structure to the first vertical plate.

[0021] In another possible implementation, the flexible circuit board is provided with a fourth bending portion and a fifth bending portion, the two ends of the fourth bending portion are respectively connected to the main section and the second branch, and the fifth bending portion is arranged on the second branch; the second branch has a fourth angle between the portion between the fourth bending portion and the fifth bending portion and the plate plane of the second vertical plate, and the second branch has a fifth angle between the portion of the fifth bending portion on the side facing away from the fourth bending portion and the plate plane of the connecting plate, and the fourth angle and the fifth angle are both set to be greater than or equal to 0 degrees and less than 90 degrees.

[0022] In another possible implementation, the third component group includes a second circuit board; when the third through-structure is arranged on the side of the second vertical plate facing away from the first vertical plate, a fourth notch is provided at the edge of the second circuit board, and the second branch passes through the fourth notch and is connected to the second circuit board.

[0023] In another possible implementation, a connecting ring is provided at the second penetrating structure or the third penetrating structure, an outer side of the connecting ring is connected to the second penetrating structure or the third penetrating structure, and an inner side of the connecting ring abuts against the flexible circuit board.

[0024] In another possible implementation, the connecting frame includes a connecting plate, and the second through-hole structure and the third through-hole structure are both arranged on the connecting plate; the first ring plate and the second ring plate are respectively provided at both ends of the outer side of the connecting ring, and the two sides of the connecting plate are respectively abutted against the first ring plate and the second ring plate, and there is a movable gap between the part of the connecting ring between the first ring plate and the second ring plate and the wall surface of the second through-hole structure or the wall surface of the third through-hole structure.

[0025] In another possible implementation, a first rib is provided on one side of the inner side surface of the connecting ring, and a second rib is provided on the other side of the inner side surface of the connecting ring; along the axial direction of the connecting ring, the projection of the first rib and the projection of the second rib at least partially overlap, and the two sides of the flexible circuit board are respectively in contact with the first rib and the second rib.

[0026] In another possible implementation, the flexible circuit board has a sixth bending portion, and the portions of the flexible circuit board on both sides of the sixth bending portion are arranged to have a sixth angle with the axial direction of the connecting ring, and the sixth angle is greater than or equal to 0 degrees and less than 90 degrees; the portions of the flexible circuit board on both sides of the sixth bending portion are respectively used to abut against the end of the first rib and the end of the second rib.

[0027] In another possible implementation, a first accommodating gap is provided between the end of the first rib and the inner side surface of the connecting ring, the width of the first accommodating gap is set along the direction in which the end of the first rib, the flexible circuit board and the inner side surface of the connecting ring are arranged in sequence, and the width of the first accommodating gap is greater than or equal to the thickness of the flexible circuit board; and / or a second accommodating gap is provided between the end of the second rib and the inner side surface of the connecting ring, the width of the second accommodating gap is set along the direction in which the end of the second rib, the flexible circuit board and the inner side surface of the connecting ring are arranged in sequence, and the width of the second accommodating gap is greater than or equal to the thickness of the flexible circuit board.

[0028] In another possible implementation, the second component group is configured as a display screen assembly; the third component group includes a second circuit board, and the second circuit board is provided with at least one of a speaker, a motor, and a data interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is an exploded view of an embodiment of a terminal device during the formation of this application;

[0030] FIG2 is a front view of an embodiment of a terminal device during the formation of this application;

[0031] FIG3 is a cross-sectional view taken along the line MM in FIG2 ;

[0032] FIG4 is an exploded view of an embodiment of a terminal device of the present application;

[0033] FIG5 is a perspective view of a flexible circuit board in an embodiment of a terminal device of the present application;

[0034] FIG6 is a front view of an embodiment of a terminal device of the present application;

[0035] FIG7 is a cross-sectional view taken along the line A1-A1 in FIG6 ;

[0036] FIG8 is a partial enlarged view of point A2 in FIG7 ;

[0037] FIG9 is a perspective view of a connection frame in an embodiment of a terminal device of the present application;

[0038] FIG10 is a front view of a connection frame in an embodiment of a terminal device of the present application;

[0039] FIG11 is a cross-sectional view taken along line A3-A3 in FIG10 ;

[0040] FIG12 is a schematic diagram of an alternate arrangement of a first device group and a third device group in one embodiment of the present application;

[0041] FIG13 is an exploded view of another embodiment of the terminal device of the present application;

[0042] FIG14 is a perspective view of a flexible circuit board in another embodiment of the terminal device of the present application;

[0043] FIG15 is a front view of another embodiment of the terminal device of the present application;

[0044] FIG16 is a cross-sectional view taken along the line B1-B1 in FIG15 ;

[0045] FIG17 is a cross-sectional view taken along the line B2-B2 in FIG15 ;

[0046] FIG18 is a perspective view of a connection frame in another embodiment of the terminal device of the present application;

[0047] FIG19 is a front view of a connection frame in another embodiment of the terminal device of the present application;

[0048] FIG20 is a cross-sectional view taken along the line B3-B3 in FIG19 ;

[0049] FIG21 is a schematic diagram of an alternate arrangement of a first device group and a third device group in another embodiment of the present application;

[0050] FIG22 is a front view of a connecting ring in another embodiment of the terminal device of the present application;

[0051] FIG23 is a schematic diagram of the installation of a connecting ring in another embodiment of the terminal device of the present application;

[0052] FIG24 is a schematic diagram of a flexible circuit board in another embodiment of the terminal device of the present application. DETAILED DESCRIPTION

[0053] The terms "first", "second" and "third" in the specification, claims and drawings of this application are used to distinguish different objects rather than to limit a specific order.

[0054] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0055] During the formation process of this application, the terminal device shown in Figures 1 to 3 was formed, which includes a connecting frame 600, and the connecting frame 600 has a first side 601 (the left side in Figure 1) and a second side 602 (the right side in Figure 1) arranged opposite to each other; the second component group 200 (specifically, it can be set as a display screen assembly) is arranged on the first side 601, the first component group 100 (specifically, it can include a first circuit board 110, and the first circuit board 110 is provided with at least one of a processor chip, a baseband chip, a radio frequency component and a camera component, in which case the first circuit board 110 can be called a main board), and the third component group 300 (specifically, it can include a second circuit board 310, and the second circuit board 310 is provided with at least one of a speaker, a motor and a data interface, in which case the second circuit board 310 can be called a small board) are both arranged on the second side 602.

[0056] The terminal device includes two independently mounted flexible circuit boards 400, also known as FPCs (Flexible Printed Circuits), which include a backing and embedded circuitry. One end of one flexible circuit board 400 is connected to the first circuit board 110, and the other end passes through a connecting frame 600 and connects to the second component assembly 200. The other flexible circuit board 400 has one end connected to the first circuit board 110 and the other end connected to the third component assembly 300. The battery 700 and its corresponding first adhesive layer 710 are both located on the second side 602. Researchers of this application have discovered that one of the reasons for the terminal device's low stability due to freezes and automatic shutdowns is that the large number of flexible circuit boards 400 and the complex structural arrangement within the terminal device interfere with the assembly of the battery 700, forcing the first adhesive layer 710 corresponding to the battery 700 to split into two parts. This reduces the bonding area of ​​the battery 700, weakening the bonding effect and reducing the stability of the battery connection and the output voltage.

[0057] Therefore, the present application provides a terminal device, which can be configured as a mobile phone, tablet, electronic watch, etc. Referring to Figure 4, the terminal device includes a first component group 100, a second component group 200, a third component group 300, and a flexible circuit board 400. The first component group 100 includes a first circuit board 110, on which at least one of a processor chip, a baseband chip, a radio frequency component, and a camera component is provided. In this case, the first circuit board 110 can be referred to as a main board; the second component group 200 can be configured as a display screen component; and the third component group 300 can be configured to include a second circuit board 310, on which at least one of a speaker, a motor, and a data interface is provided. In this case, the second circuit board 310 can be referred to as a sub-board.

[0058] 4 , the terminal device has a first direction and a second direction, the first direction is set as the direction from the first device group 100 to the second device group 200, the first direction intersects with the second direction, and the second direction is set parallel to the plane of the flexible circuit board 400; wherein, the first direction refers to the Y direction in FIG4 ; the second direction refers to the X direction in FIG4 .

[0059] 4 to 7 , one end of a flexible circuit board 400 is connected to the first circuit board 110, and the other end of the flexible circuit board 400 is provided with a first branch 411 and a second branch 420. The second component group 200 is electrically connected to the first branch 411, and the third component group 300 is electrically connected to the second branch 420. Specifically, the flexible circuit board 400 can be connected to the first circuit board 110, the second component group 200, and the second circuit board 310 of the third component group 300 via BTB connectors.

[0060] In this technical solution, by connecting one end of the flexible circuit board 400 to the first circuit board 110, electrically connecting the second device group 200 to the first branch 411 at the other end of the flexible circuit board 400, and electrically connecting the third device group 300 to the second branch 420 at the other end of the flexible circuit board 400, an integrated flexible circuit board 400 is formed, which reduces the number of flexible circuit boards 400 and helps reduce costs; in addition, the reduction in the number of flexible circuit boards 400 is conducive to simplifying the structural arrangement in the terminal device and reducing the failure rate of the flexible circuit board, and reducing the assembly interference with the battery 700, which is conducive to improving the connection stability of the battery 700 and the stability of the output voltage, and is conducive to reducing the possibility of the terminal device freezing or automatically shutting down, and is conducive to improving the use stability of the terminal device.

[0061] Referring to Figure 7 , the ends of the flexible circuit board 400 can be configured to connect to the first component group 100 and the second component group 200, respectively. A first branch 411 is provided at the end of the flexible circuit board 400 facing away from the first component group 100 (as shown in the lower portion of Figure 7 ). Specifically, referring to Figure 5 , the flexible circuit board 400 includes a main section 410, the ends of which are connected to the first component group 100 and the second component group 200, respectively. The first branch 411 is provided at the end of the main section 410 facing away from the first component group 100. Referring to Figure 5 , along the second direction, a second branch 420 is provided between two sides of the flexible circuit board 400. The flexible circuit board 400 is provided with a first through-structure 430, which is provided on the main section 410. The second branch 420 is provided on the sidewall of the first through-structure 430, that is, the second branch 420 extends from the sidewall of the first through-structure 430. In this case, the first through-structure 430 can be provided as a through hole. Of course, the first through structure 430 may also be configured as a notch. In this case, the second branch 420 may be disposed on the side of the flexible circuit board 400 along the first direction (the lower side in the figure).

[0062] 4, 6, and 7, the terminal device further includes a connection frame 600, which can be configured as a middle frame of the terminal device. The connection frame 600 has a first side 601 (left side in FIG. 7) and a second side 602 (right side in FIG. 7) disposed opposite each other. The second component group 200 is disposed on the first side 601, and the first component group 100 and the third component group 300 are both disposed on the second side 602. The connection frame 600 is provided with a second through-structure 611 and a third through-structure 612. The second through-structure 611 and the third through-structure 612 can be configured as through holes or notches, and this embodiment is not limited thereto. One end (the upper end in the figure) of the flexible printed circuit board 400 passes through the second through-structure 611 from the first side 601 to electrically connect to the first component group 100. The second branch 420 passes through the third through-structure 612 from the first side 601 to electrically connect to the third component group 300. Correspondingly, the terminal device further includes a battery 700 and a first adhesive layer 710. The first adhesive layer 710 can be configured as adhesive, etc.; the battery 700 and the first adhesive layer 710 are both disposed on the second side 602. The first component group 100 and the third component group 300 are spaced apart, with the battery 700 and the first adhesive layer 710 disposed between the first component group 100 and the third component group 300. The first adhesive layer 710 is disposed between the battery 700 and the connection frame 600, with both sides of the first adhesive layer 710 bonded to the battery 700 and the connection frame 600, respectively. A second notch 711 is defined on the side of the first adhesive layer 710 facing the first component group 100. The second notch 711 communicates with the second through-structure 611. The second notch 711 prevents the first adhesive layer 710 from adhering to the flexible circuit board 400 extending from the second through-structure 611.

[0063] At this time, the part of the flexible circuit board 400 on the first side 601 (the left side in Figure 7) of the connecting frame can reduce the area of ​​the second notch 711, increase the bonding area of ​​the first adhesive layer 710 to the battery 700, improve the bonding stability of the battery 700, improve the connection stability of the battery and the stability of the output voltage, further reduce the possibility of the terminal device freezing or automatically shutting down, and further improve the stability of the terminal device.

[0064] Referring to Figures 7 and 8, the connection frame 600 includes a connection plate 610, with a second through-structure 611 and a third through-structure 612 disposed on the connection plate 610. A connecting ring 800 is provided at the third through-structure 612. The connecting ring 800 can be made of a material with a certain degree of elasticity, such as rubber. The outer side of the connecting ring 800 is connected to the third through-structure 612, and the inner side of the connecting ring 800 abuts against the flexible circuit board 400. Because terminal devices typically incorporate plug-in structures such as card holders, there is a risk of liquid or steam ingress through these plug-in structures. In this case, the connecting ring 800 can reduce the smoothness of the flow of liquid or steam along the flexible circuit board 400, thereby minimizing damage to the terminal device. Furthermore, the inner side of the connecting ring 800 can be configured to provide an interference fit with the flexible circuit board 400 to further enhance its ability to block liquid and steam ingress, further minimizing damage to the terminal device.

[0065] Referring to FIG8 , the outer ends of the connecting ring 800 (the left and right ends in FIG8 ) are respectively provided with a first ring plate 811 and a second ring plate 812. The two sides of the connecting plate 610 are respectively in contact with the first ring plate 811 and the second ring plate 812. A movable gap 801 is provided between the portion of the connecting ring 800 between the first ring plate 811 and the second ring plate 812 and the wall surface of the third through-structure 612. This movable gap 801 enables the connecting ring 800 to be more smoothly assembled into the third through-structure 612. Furthermore, the third through-structure 612 is typically formed by machining, injection molding, or casting, and burrs may exist on its wall surface. This movable gap 801 also reduces the possibility of burrs on the wall surface of the third through-structure 612 puncturing the connecting ring 800, thereby reducing the risk of failure of the connecting ring 800.

[0066] 7, 9, and 11, a first vertical plate 620 and a second vertical plate 630 are spaced apart on the second side 602 of the connecting plate 610. That is, the first vertical plate 620 and the second vertical plate 630 are in an upright position relative to the connecting plate 610. The first component group 100 is disposed on the side of the first vertical plate 620 facing away from the second vertical plate 630 (e.g., on the upper side in FIG. 7), the battery 700 and the first adhesive layer 710 are both disposed between the first vertical plate 620 and the second vertical plate 630, and the third component group 300 (including the second circuit board 310) is disposed on the side of the second vertical plate 630 facing away from the first vertical plate 620 (e.g., on the lower side in FIG. 7). The second through-structure 611 can be arranged between the first vertical plate 620 and the second vertical plate 630 (in this case, the distance from the second through-structure 611 to the first vertical plate 620 can be further arranged to be smaller than the distance from the second through-structure 611 to the second vertical plate 630, that is, the second through-structure 611 is closer to the first vertical plate 620). Of course, the second through-structure 611 can also be arranged on the side of the first vertical plate 620 facing away from the second vertical plate 630, and this embodiment does not limit this. The third through-structure 612 is arranged on the side of the second vertical plate 630 facing away from the first vertical plate 620 (such as the lower side in Figure 7), or the third through-structure 612 is arranged between the first vertical plate 620 and the second vertical plate 630 and the distance from the third through-structure 612 to the second vertical plate 630 is smaller than the distance from the third through-structure 612 to the first vertical plate 620 (that is, the third through-structure 612 is closer to the second vertical plate 630), and this embodiment does not limit this.

[0067] Furthermore, referring to Figures 7, 9, and 11, while the second penetration structure 611 is disposed between the first and second risers 620, 630, a groove 613 is provided on the connecting plate 610. The groove 613 extends from the first component group 100 to the second component group 200 (in the vertical direction in the figures), with the ends of the groove 613 connected to the second penetration structure 611. A portion of the flexible circuit board 400 is accommodated within the groove 613 along the direction from the first component group 100 to the second component group 200. The groove 613 reduces the combined thickness of the portion of the flexible circuit board 400 accommodated therein and the connecting plate 610, thereby reducing the overall thickness of the terminal device.

[0068] To further stabilize the connection of the flexible circuit board 400 to the second side 602 of the connection frame 600, the terminal device further includes a second adhesive layer 720, as shown in FIG7 . The second adhesive layer 720 can be provided with an adhesive backing. The second adhesive layer 720 is disposed within the groove 613, with its two sides respectively bonded to the flexible circuit board 400 and the wall surface of the groove 613. The placement of the second adhesive layer 720 within the groove 613 also helps reduce the overall thickness of the terminal device through the groove 613.

[0069] Referring to Figures 7, 9, and 11, a third notch 621 is defined on the side of the first riser 620 facing away from the connecting plate 610. The flexible circuit board 400 is at least partially accommodated within the third notch 621 along its thickness. The third notch 621 reduces scratches and damage to the flexible circuit board 400 and reduces the thickness of the flexible circuit board 400, thereby reducing the overall thickness of the terminal device. Furthermore, the portion of the first riser 620 outside the third notch 621 can be relatively tall, which helps to enhance the structural strength of the first riser 620 and the connecting frame 600.

[0070] When the above-mentioned first vertical plate 620 and second vertical plate 630 are set, referring to Figure 7, the flexible circuit board 400 is provided with a first bending portion 401, a second bending portion 402 and a third bending portion 403. The first bending portion 401, the second bending portion 402 and the third bending portion 403 are arranged in a direction from the first device group 100 to the second device group 200. The first bending portion 401 and the second bending portion 402 can be set to L-shaped bending, and the third bending portion 403 can be set to Z-shaped bending. The flexible circuit board 400 has a first angle between a portion of the first bend portion 401 facing away from the second bend portion 402 (the upper portion in FIG. 7 ) and the plate plane of the connecting plate 610. For example, the first angle is 0 degrees, and the entire portion is arranged to be parallel to the plate plane of the connecting plate 610. The flexible circuit board 400 has a second angle between a portion between the first bend portion 401 and the second bend portion 402 and the plate plane of the first vertical plate 620. For example, the second angle is 0 degrees, and the entire portion is arranged to be parallel to the plate plane of the first vertical plate 620. The flexible circuit board 400 has a third angle between a portion of the third bend portion 403 facing away from the second bend portion 402 and the plate plane of the connecting plate 610. For example, the third angle is 0 degrees, and the entire portion is arranged to be parallel to the plate plane of the connecting plate 610. That is, the first angle, the second angle, and the third angle are all set to be greater than or equal to 0 degrees and less than 90 degrees, such as 0 degrees, 10 degrees, 20 degrees, 45 degrees, or 60 degrees, which is not limited in this embodiment.

[0071] Continuing with FIG7 , the flexible printed circuit board 400 is provided with a fourth bend 404 and a fifth bend 405 . The fourth bend 404 and the fifth bend 405 can be configured as L-shaped bends. The fourth bend 404 is connected to the main section 410 and the second branch 420 at both ends, respectively. The fifth bend 405 is disposed on the second branch 420 . The portion of the second branch 420 between the fourth bend 404 and the fifth bend 405 forms a fourth angle with the plane of the second vertical plate 630 . For example, if the fourth angle is 0 degrees, the entire portion is parallel to the plane of the second vertical plate 630 . The portion of the second branch 420 on the side of the fifth bend 405 facing away from the fourth bend 404 (the lower right portion in FIG7 ) forms a fifth angle with the plane of the connecting plate 610 . For example, if the fifth angle is 0 degrees, the entire portion is parallel to the plane of the connecting plate 610 . That is, the fourth angle and the fifth angle are both set to be greater than or equal to 0 degrees and less than 90 degrees, such as 0 degrees, 10 degrees, 20 degrees, 45 degrees or 60 degrees, which is not limited in this embodiment.

[0072] 12 , a fourth notch 311 is provided on the edge of the second circuit board 310 , and the second branch 420 passes through the fourth notch 311 and is connected to the second circuit board 310 to improve the overall compactness of the terminal device.

[0073] Figures 13 to 21 show another embodiment of the terminal device in the present application, wherein with reference to Figure 13, the terminal device includes a first component group 100, a second component group 200, a third component group 300 and a flexible circuit board 400, the first component group 100 includes a first circuit board 110, on which at least one of a processor chip, a baseband chip, a radio frequency component and a camera component is provided, in which case the first circuit board 110 can be referred to as a main board; the second component group 200 can be configured as a display screen component; the third component group 300 can be configured to include a second circuit board 310, on which at least one of a speaker, a motor and a data interface is provided, in which case the second circuit board 310 can be referred to as a small board.

[0074] 13 , the terminal device has a first direction and a second direction, the first direction is set as the direction from the first device group 100 to the second device group 200, the first direction intersects with the second direction, and the second direction is set parallel to the plane of the flexible circuit board 400; wherein, the first direction refers to the Y direction in FIG13 ; the second direction refers to the X direction in FIG13 .

[0075] Referring to Figures 13 to 17 , one end of a flexible circuit board 400 is connected to the first circuit board 110, and the other end of the flexible circuit board 400 is provided with a first branch 411 and a second branch 420. The second component group 200 is electrically connected to the first branch 411, and the third component group 300 is electrically connected to the second branch 420. Specifically, the flexible circuit board 400 can be connected to the first circuit board 110, the second component group 200, and the second circuit board 310 of the third component group 300 via BTB connectors.

[0076] In this technical solution, by connecting one end of the flexible circuit board 400 to the first circuit board 110, electrically connecting the second device group 200 to the first branch 411 at the other end of the flexible circuit board 400, and electrically connecting the third device group 300 to the second branch 420 at the other end of the flexible circuit board 400, an integrated flexible circuit board 400 is formed, which reduces the number of flexible circuit boards 400 and helps reduce costs; in addition, the reduction in the number of flexible circuit boards 400 is conducive to simplifying the structural arrangement in the terminal device and reducing the failure rate of the flexible circuit board, and reducing the assembly interference with the battery 700, which is conducive to improving the connection stability of the battery 700 and the stability of the output voltage, and is conducive to reducing the possibility of the terminal device freezing or automatically shutting down, and is conducive to improving the use stability of the terminal device.

[0077] Referring to Figure 13 , the ends of the flexible circuit board 400 are configured to connect to the first component group 100 and the second component group 200, respectively. A first branch 411 is provided at the end of the flexible circuit board 400 facing away from the first component group 100 (as shown in the lower portion of Figure 13 ). Specifically, referring to Figure 14 , the flexible circuit board 400 includes a main section 410, the ends of which are connected to the first component group 100 and the second component group 200, respectively. The first branch 411 is provided at the end of the main section 410 facing away from the first component group 100. Along the second direction, the second branch 420 is provided on a side edge of the flexible circuit board 400 (as shown in the right side of Figure 14 ).

[0078] Referring to Figures 13, 15, and 16, the terminal device further includes a connecting frame 600, which can be configured as a middle frame of the terminal device. The connecting frame 600 has a first side 601 (left side in Figure 16) and a second side 602 (right side in Figure 16) disposed opposite each other. The second component group 200 is disposed on the first side 601, and the first component group 100 and the third component group 300 are both disposed on the second side 602. The connecting frame 600 is provided with a second through-structure 611 and a third through-structure 612. The second through-structure 611 and the third through-structure 612 can be configured as through holes or notches, and this embodiment is not limited thereto. One end (the upper end in the figure) of the flexible printed circuit board 400 passes through the second through-structure 611 from the first side 601 to electrically connect to the first component group 100. The second branch 420 passes through the third through-structure 612 from the first side 601 to electrically connect to the third component group 300. Correspondingly, the terminal device further includes a battery 700 and a first adhesive layer 710. The first adhesive layer 710 can be specifically configured as a backing adhesive, etc. The battery 700 and the first adhesive layer 710 are both disposed on the second side 602. The first component group 100 and the third component group 300 are spaced apart, with the battery 700 and the first adhesive layer 710 disposed between the first component group 100 and the third component group 300. The first adhesive layer 710 is disposed between the battery 700 and the connection frame 600, with both sides of the first adhesive layer 710 bonded to the battery 700 and the connection frame 600, respectively. A second notch 711 is defined on the side of the first adhesive layer 710 facing the first component group 100. The second notch 711 communicates with the second through-structure 611, thereby preventing the first adhesive layer 710 from adhering to the flexible circuit board 400 extending from the second through-structure 611.

[0079] At this time, the part of the flexible circuit board 400 on the first side 601 (the left side in Figure 16) of the connecting frame can reduce the area of ​​the second notch 711, increase the bonding area of ​​the first adhesive layer 710 to the battery 700, improve the bonding stability of the battery 700, improve the connection stability of the battery and the stability of the output voltage, further reduce the possibility of the terminal device freezing or automatically shutting down, and further improve the stability of the terminal device in use.

[0080] Referring to Figures 13 and 17 , the connection frame 600 includes a connection plate 610 , on which a second through-structure 611 and a third through-structure 612 are disposed. A connecting ring 800 is provided at the third through-structure 612 . The connecting ring 800 can be made of a material with a certain degree of elasticity, such as rubber. The outer side of the connecting ring 800 is connected to the third through-structure 612 , while the inner side of the connecting ring 800 abuts against the flexible printed circuit board 400 . Because terminal devices typically incorporate plug-in structures such as card holders, there is a risk of liquid or steam ingress through these plug-in structures. In this case, the connecting ring 800 can reduce the smoothness of the flow of liquid or steam along the flexible printed circuit board 400, thereby minimizing damage to the terminal device. Furthermore, the inner side of the connecting ring 800 can be configured to provide an interference fit with the flexible printed circuit board 400 to further enhance its ability to block liquid and steam ingress, further minimizing damage to the terminal device.

[0081] Referring to Figure 17 , the outer ends of the connecting ring 800 (the upper and lower ends in Figure 17 ) are respectively provided with a first ring plate 811 and a second ring plate 812. The two sides of the connecting plate 610 are respectively in contact with the first ring plate 811 and the second ring plate 812. A movable gap 801 is provided between the portion of the connecting ring 800 between the first ring plate 811 and the second ring plate 812 and the wall surface of the third through-structure 612. This movable gap 801 enables the connecting ring 800 to be more smoothly installed into the third through-structure 612. Furthermore, the third through-structure 612 is typically formed by machining, injection molding, or casting, and burrs may exist on its wall surface. This movable gap 801 also reduces the possibility of burrs on the wall surface of the third through-structure 612 puncturing the connecting ring 800, thereby reducing the risk of failure of the connecting ring 800.

[0082] Referring again to Figure 13 , the terminal device further includes a communication card mounting portion 500 , which may include a corresponding card holder. Along the second direction, the second branch 420 is positioned on the side of the flexible circuit board 400 (e.g., on the left side in the figure), while the communication card mounting portion 500 is positioned on the side of the flexible circuit board 400 facing away from the second branch 420 (e.g., on the right side in the figure). This greater distance between the communication card mounting portion 500 and the second branch 420 and the corresponding connecting ring 800 helps further reduce the smoothness of the flow of liquid and steam along the flexible circuit board 400, further minimizing damage to the terminal device caused by the liquid and steam inflow.

[0083] 16 and 18 to 20 , a first vertical plate 620 and a second vertical plate 630 are provided on the second side 602 of the connecting plate 610 , and are spaced apart from each other. That is, the first vertical plate 620 and the second vertical plate 630 are in an upright state relative to the connecting plate 610 . The first component group 100 is arranged on the side of the first vertical plate 620 facing away from the second vertical plate 630 (such as the upper side in Figure 16), the battery 700 and the first adhesive layer 710 are both arranged between the first vertical plate 620 and the second vertical plate 630, and the third component group 300 (including the second circuit board 310) is arranged on the side of the second vertical plate 630 facing away from the first vertical plate 620 (such as the lower side in Figure 16); the second penetrating structure 611 can also be arranged between the first vertical plate 620 and the second vertical plate 630 (in this case, the distance from the second penetrating structure 611 to the first vertical plate 620 can be further set to be smaller than the distance from the second penetrating structure 611 to the second vertical plate 630, that is, the second penetrating structure 611 is closer to the first vertical plate 620). Of course, the second penetrating structure 611 can also be arranged on the side of the first vertical plate 620 facing away from the second vertical plate 630, and this embodiment is not limited to this. The third penetrating structure 612 is arranged on the side of the second vertical plate 630 facing away from the first vertical plate 620 (such as the lower side in Figure 18), or the third penetrating structure 612 is arranged between the first vertical plate 620 and the second vertical plate 630 and the distance from the third penetrating structure 612 to the second vertical plate 630 is smaller than the distance from the third penetrating structure 612 to the first vertical plate 620 (that is, the third penetrating structure 612 is closer to the second vertical plate 630). This embodiment does not impose any restrictions on this.

[0084] Furthermore, referring to Figures 18 to 20 , while the second penetration structure 611 is disposed between the first and second risers 620 and 630, a groove 613 is provided on the connecting plate 610. This groove 613 extends from the first component group 100 to the second component group 200 (in the vertical direction in the figures), with the ends of the groove 613 connected to the second penetration structure 611. A portion of the flexible circuit board 400 is accommodated within the groove 613 along the direction from the first component group 100 to the second component group 200. This groove 613 reduces the combined thickness of the portion of the flexible circuit board 400 accommodated therein and the connecting plate 610, thereby reducing the overall thickness of the terminal device.

[0085] To further stabilize the connection of the flexible circuit board 400 to the second side 602 of the connection frame 600, the terminal device further includes a second adhesive layer 720, as shown in FIG16 . The second adhesive layer 720 can be provided with an adhesive backing. The second adhesive layer 720 is disposed within the groove 613, with its two sides respectively bonded to the flexible circuit board 400 and the wall surface of the groove 613. The placement of the second adhesive layer 720 within the groove 613 also helps reduce the overall thickness of the terminal device through the groove 613.

[0086] Referring to Figures 16, 18, and 20, a third notch 621 is defined on the side of the first riser 620 facing away from the connecting plate 610. The flexible circuit board 400 is at least partially accommodated within the third notch 621 along its thickness. The third notch 621 reduces scratches and damage to the flexible circuit board 400 and reduces the thickness of the flexible circuit board 400, thereby reducing the overall thickness of the terminal device. Furthermore, the portion of the first riser 620 outside the third notch 621 can be relatively tall, which helps to enhance the structural strength of the first riser 620 and the connecting frame 600.

[0087] When the above-mentioned first vertical plate 620 and second vertical plate 630 are set, referring to Figure 16, the flexible circuit board 400 is provided with a first bending portion 401, a second bending portion 402 and a third bending portion 403. The first bending portion 401, the second bending portion 402 and the third bending portion 403 are arranged in a direction from the first device group 100 to the second device group 200. The first bending portion 401 and the second bending portion 402 can be set to L-shaped bending, and the third bending portion 403 can be set to Z-shaped bending. The flexible circuit board 400 has a first angle between the portion of the first bend portion 401 facing away from the second bend portion 402 (the upper portion in FIG. 16 ) and the plate plane of the connecting plate 610. If the first angle is 0 degrees, the portion is set as a whole to be parallel to the plate plane of the connecting plate 610. The flexible circuit board 400 has a second angle between the portion between the first bend portion 401 and the second bend portion 402 and the plate plane of the first vertical plate 620. If the second angle is 0 degrees, the portion is set as a whole to be parallel to the plate plane of the connecting plate 610. Parallel to the board plane of the first vertical plate 620; a third angle is provided between the portion of the third bend portion 403 of the flexible circuit board 400 facing away from the second bend portion 402 and the board plane of the connecting plate 610, such as when the third angle is 0 degrees, the portion as a whole is set to be parallel to the board plane of the connecting plate 610; that is, the first angle, the second angle and the third angle are all set to be greater than or equal to 0 degrees and less than 90 degrees, such as 0 degrees, 10 degrees, 20 degrees, 45 degrees or 60 degrees, which is not limited in this embodiment.

[0088] 17 , the flexible printed circuit board 400 is provided with a fourth bend 404 and a fifth bend 405 . The fourth bend 404 and the fifth bend 405 can be configured as L-shaped bends. The fourth bend 404 is connected to the main section 410 and the second branch 420 at both ends, respectively. The fifth bend 405 is provided on the second branch 420 . The portion of the second branch 420 between the fourth bend 404 and the fifth bend 405 forms a fourth angle with the plane of the second vertical plate 630 . For example, if the fourth angle is 0 degrees, the entire portion is parallel to the plane of the second vertical plate 630 . The portion of the second branch 420 on the side of the fifth bend 405 facing away from the fourth bend 404 (the upper portion in FIG. 17 ) forms a fifth angle with the plane of the connecting plate 610 . For example, if the fifth angle is 0 degrees, the entire portion is parallel to the plane of the connecting plate 610 . That is, the fourth angle and the fifth angle are both set to be greater than or equal to 0 degrees and less than 90 degrees, such as 0 degrees, 10 degrees, 20 degrees, 45 degrees or 60 degrees, which is not limited in this embodiment.

[0089] 21 , a fourth notch 311 is provided on the edge of the second circuit board 310 , and the second branch 420 passes through the fourth notch 311 and is connected to the second circuit board 310 to improve the overall compactness of the terminal device.

[0090] For the above two embodiments, referring to FIG. 22 to FIG. 23 , the connecting ring 800 has the following optional improvements.

[0091] Referring to Figures 22 and 23 , a first rib 821 is provided on one side of the inner side of the connecting ring 800, and a second rib 822 is provided on the other side of the inner side of the connecting ring 800. Along the axial direction of the connecting ring 800 (the vertical direction in the figures), the projection of the first rib 821 and the projection of the second rib 822 at least partially overlap. The two sides of the flexible printed circuit board 400 abut against the first rib 821 and the second rib 822, respectively. In this manner, the first rib 821 and the second rib 822 can further block incoming liquid and steam flowing along the flexible printed circuit board 400, thereby further reducing damage to the terminal device caused by the incoming liquid and steam.

[0092] Furthermore, referring to Figures 23 and 24 , the flexible circuit board 400 has a sixth bend 406, which can be configured as a Z-bend. Portions of the flexible circuit board 400 on either side of the sixth bend 406 are configured to have a sixth angle with the axial direction of the connecting ring 800. For example, the sixth angle is 0 degrees, and the entire portion is configured to be parallel to the axial direction of the connecting ring 800. That is, the sixth angle is greater than or equal to 0 degrees and less than 90 degrees, such as 0 degrees, 10 degrees, 20 degrees, 45 degrees, or 60 degrees, although this embodiment is not limited thereto. Portions of the flexible circuit board 400 on either side of the sixth bend 406 are configured to abut against the ends of the first rib 821 and the second rib 822, respectively. In this case, the first and second ribs 821, 822, whose projections at least partially overlap, can reduce redundant length of the flexible circuit board 400, improve the neatness of the internal structure of the terminal device, and reduce interference of the flexible circuit board 400 with other components. Portions of the flexible circuit board 400 on both sides of the sixth bent portion 406 are respectively used to abut against the ends of the first rib 821 and the second rib 822 , thereby reducing the shaking of the flexible circuit board 400 at these locations.

[0093] As a further optional embodiment, referring to Figures 22 and 23, a first accommodating gap 831 is provided between the end of the first rib 821 and the inner side surface of the connecting ring 800. The width of the first accommodating gap 831 is set along the direction in which the end of the first rib 821, the flexible circuit board 400 and the inner side surface of the connecting ring 800 are arranged in sequence (the left and right direction in the figure), and the width of the first accommodating gap 831 is greater than or equal to the thickness of the flexible circuit board 400; a second accommodating gap 832 is provided between the end of the second rib 822 and the inner side surface of the connecting ring 800. The width of the second accommodating gap 832 is set along the direction in which the end of the second rib 822, the flexible circuit board 400 and the inner side surface of the connecting ring 800 are arranged in sequence (the left and right direction in the figure), and the width of the second accommodating gap 832 is greater than or equal to the thickness of the flexible circuit board 400. At this time, when the width of the first accommodating gap 831 is equal to the thickness of the flexible circuit board 400 and the width of the second accommodating gap 832 is equal to the thickness of the flexible circuit board 400, the degree of shaking of the flexible circuit board 400 at this location can be further reduced; when the width of the first accommodating gap 831 is greater than the thickness of the flexible circuit board 400 and the width of the second accommodating gap 832 is greater than the thickness of the flexible circuit board 400, the first accommodating gap 831 and the second accommodating gap 832 can further consume the redundant length of the flexible circuit board 400, further improve the neatness of the internal structure of the terminal device, and further reduce the assembly interference of the flexible circuit board 400 on other components.

[0094] Of course, the above-mentioned connecting ring 800 can also be arranged at the second through-hole structure 611 in the above-mentioned manner, including a connection relationship such as a movable gap between the part of the connecting ring 800 between the first ring plate 811 and the second ring plate 812 and the wall surface of the second through-hole structure 611. This embodiment does not limit this.

[0095] The above description is merely a specific embodiment of the present application. Any person skilled in the art may easily conceive of variations or substitutions within the technical scope disclosed in this application, and such variations or substitutions shall be within the scope of protection of this application. The scope of protection of this application shall be subject to the scope of protection of the claims.

Claims

1. A terminal device, characterized in that: The terminal device includes: A first component group, the first component group including a first circuit board, on which at least one of a processor chip, a baseband chip, a radio frequency component, and a camera component is provided; a flexible circuit board, one end of which is connected to the first circuit board, and the other end of which is provided with a first branch and a second branch; a second device group, the second device group being electrically connected to the first branch; A third device group is electrically connected to the second branch.

2. The terminal device according to claim 1, wherein: The two ends of the flexible circuit board are respectively connected to the first component group and the second component group, and the first branch is arranged on the end of the flexible circuit board facing away from the first component group; the terminal device has a first direction and a second direction, the first direction is set as the direction from the first component group to the second component group, the first direction intersects with the second direction, and the second direction is set parallel to the plane of the flexible circuit board; along the second direction, the second branch is arranged between the two side edges of the flexible circuit board or the second branch is arranged on the side edge of the flexible circuit board.

3. The terminal device according to claim 2, wherein: A first penetrating structure is provided on the flexible circuit board, and the second branch is provided on a side wall of the first penetrating structure.

4. The terminal device according to claim 3, wherein: When the second branch is arranged between the two sides of the flexible circuit board along the second direction, the first penetrating structure is set as a through hole; when the second branch is arranged on the side of the flexible circuit board, the first penetrating structure is set as a first notch.

5. The terminal device according to claim 2, wherein: The terminal device further includes a communication card installation portion; when the second branch is arranged on the side of the flexible circuit board along the second direction, the communication card installation portion is arranged on the side of the flexible circuit board facing away from the second branch.

6. The terminal device according to claim 1, wherein: The terminal device also includes a connecting frame, which has a first side and a second side arranged opposite to each other; the second component group is arranged on the first side, and the first component group and the third component group are both arranged on the second side; a second through-structure and a third through-structure are provided on the connecting frame, one end of the flexible circuit board passes through the second through-structure from the first side to be electrically connected to the first component group, and the second branch passes through the third through-structure from the first side to be electrically connected to the third component group.

7. The terminal device according to claim 6, wherein: The terminal device also includes a battery and a first adhesive layer, and the battery is arranged on the second side; the first component group and the third component group are arranged at intervals, and the battery and the first adhesive layer are both arranged between the first component group and the third component group; the first adhesive layer is arranged between the battery and the connecting frame, and the two sides of the first adhesive layer are respectively bonded to the battery and the connecting frame; the first adhesive layer is provided with a second notch on the side facing the first component group, and the second notch is connected to the second through-structure.

8. The terminal device according to claim 7, wherein: The connecting frame includes a connecting plate, and a first vertical plate and a second vertical plate are provided on the second side of the connecting plate; the first component group is arranged on the side of the first vertical plate facing away from the second vertical plate, the battery and the first adhesive layer are both arranged between the first vertical plate and the second vertical plate, and the third component group is arranged on the side of the second vertical plate facing away from the first vertical plate; the second penetrating structure is arranged on the connecting plate, and the second penetrating structure is arranged between the first vertical plate and the second vertical plate or the second penetrating structure is arranged on the side of the first vertical plate facing away from the second vertical plate.

9. The terminal device according to claim 8, wherein: When the second penetrating structure is disposed between the first vertical plate and the second vertical plate, a distance from the second penetrating structure to the first vertical plate is smaller than a distance from the second penetrating structure to the second vertical plate.

10. The terminal device according to any one of claims 7 to 9, characterized in that: When the second through-hole structure is arranged between the first vertical plate and the second vertical plate, a groove is provided on the connecting plate, and the groove extends along the direction from the first component group to the second component group, and the end of the groove is connected to the second through-hole structure; along the direction from the first component group to the second component group, part of the flexible circuit board is accommodated in the groove.

11. The terminal device according to claim 10, wherein: The terminal device further includes a second adhesive layer, which is disposed in the groove, and two sides of the second adhesive layer are respectively bonded to the flexible circuit board and the wall surface of the groove.

12. The terminal device according to claim 7, wherein: A third notch is provided on a side of the first vertical plate facing away from the connecting plate, and the flexible circuit board is at least partially accommodated in the third notch along the thickness direction.

13. The terminal device according to claim 7, wherein: The flexible circuit board is provided with a first bending portion, a second bending portion and a third bending portion, and the first bending portion, the second bending portion and the third bending portion are arranged in a direction from the first component group to the second component group; the flexible circuit board has a first angle between a portion of the first bending portion facing away from the second bending portion and the board plane of the connecting plate, a second angle between a portion of the flexible circuit board between the first bending portion and the second bending portion and the board plane of the first vertical plate, and a third angle between a portion of the third bending portion facing away from the second bending portion and the board plane of the connecting plate, and the first angle, the second angle and the third angle are all set to be greater than or equal to 0 degrees and less than 90 degrees.

14. The terminal device according to claim 7, wherein: The flexible circuit board includes a main body section, the two ends of which are respectively connected to the first component group and the second component group, and the first branch is arranged on the end of the main body section facing away from the first component group; the third penetrating structure is arranged on the connecting plate, the third penetrating structure is arranged on the side of the second vertical plate facing away from the first vertical plate, or the third penetrating structure is arranged between the first vertical plate and the second vertical plate and the distance from the third penetrating structure to the second vertical plate is less than the distance from the third penetrating structure to the first vertical plate.

15. The terminal device according to claim 14, wherein: The flexible circuit board is provided with a fourth bending portion and a fifth bending portion, the two ends of the fourth bending portion are respectively connected to the main section and the second branch, and the fifth bending portion is arranged on the second branch; the second branch has a fourth angle between the portion between the fourth bending portion and the fifth bending portion and the plate plane of the second vertical plate, and the second branch has a fifth angle between the portion of the fifth bending portion on the side facing away from the fourth bending portion and the plate plane of the connecting plate, and the fourth angle and the fifth angle are both set to be greater than or equal to 0 degrees and less than 90 degrees.

16. The terminal device according to claim 15, wherein: The third component group includes a second circuit board; when the third penetrating structure is arranged on the side of the second vertical plate facing away from the first vertical plate, a fourth notch is provided at the edge of the second circuit board, and the second branch passes through the fourth notch and is connected to the second circuit board.

17. The terminal device according to claim 6, wherein: A connecting ring is provided at the second penetrating structure or the third penetrating structure, an outer side of the connecting ring is connected to the second penetrating structure or the third penetrating structure, and an inner side of the connecting ring is in contact with the flexible circuit board.

18. The terminal device according to claim 17, wherein: The connecting frame includes a connecting plate, and the second penetrating structure and the third penetrating structure are both arranged on the connecting plate; the two ends of the outer side of the connecting ring are respectively provided with a first ring plate and a second ring plate, and the two sides of the connecting plate are respectively abutted against the first ring plate and the second ring plate, and a movable gap is provided between the part of the connecting ring between the first ring plate and the second ring plate and the wall surface of the second penetrating structure or the wall surface of the third penetrating structure.

19. The terminal device according to claim 17, wherein: A first rib is provided on one side of the inner side surface of the connecting ring, and a second rib is provided on the other side of the inner side surface of the connecting ring; along the axial direction of the connecting ring, the projection of the first rib and the projection of the second rib at least partially overlap, and the two sides of the flexible circuit board are respectively in contact with the first rib and the second rib.

20. The terminal device according to claim 19, wherein: The flexible circuit board has a sixth bending portion, and the portions of the flexible circuit board on both sides of the sixth bending portion are arranged to have a sixth angle with the axial direction of the connecting ring, and the sixth angle is greater than or equal to 0 degrees and less than 90 degrees; the portions of the flexible circuit board on both sides of the sixth bending portion are respectively used to abut against the end portion of the first rib plate and the end portion of the second rib plate.

21. The terminal device according to claim 19, wherein: A first accommodating gap is provided between the end of the first rib and the inner side surface of the connecting ring, and the width of the first accommodating gap is set along the direction in which the end of the first rib, the flexible circuit board and the inner side surface of the connecting ring are arranged in sequence, and the width of the first accommodating gap is greater than or equal to the thickness of the flexible circuit board; and / or a second accommodating gap is provided between the end of the second rib and the inner side surface of the connecting ring, and the width of the second accommodating gap is set along the direction in which the end of the second rib, the flexible circuit board and the inner side surface of the connecting ring are arranged in sequence, and the width of the second accommodating gap is greater than or equal to the thickness of the flexible circuit board.

22. The terminal device according to claim 1, wherein: The second component group is configured as a display screen assembly; the third component group includes a second circuit board, on which at least one of a speaker, a motor, and a data interface is provided.

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