CN115883697A

CN115883697A - Terminal device

Info

Publication number: CN115883697A
Application number: CN202111134457.8A
Authority: CN
Inventors: 张光辉; 程彦荣; 罗刚
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2023-03-31

Abstract

The present disclosure relates to a terminal, including: a middle frame; the first circuit board is positioned on the middle frame; the flat cable has flexibility and comprises a first connecting area and a second connecting area; the first connecting area is distributed in parallel with the first circuit board; the second connecting area is provided with a first mounting position, is positioned between the first circuit board and the middle frame and is stacked and distributed with the first circuit board in the thickness direction of the middle frame. The technical scheme of the embodiment of the disclosure improves the utilization rate of the terminal space.

Description

Terminal device

Technical Field

The present disclosure relates to the field of electronic devices, and more particularly, to a terminal.

Background

With the continuous progress of science and technology, the number of functional devices of the terminal is increased, and the performance of each functional device is higher and higher. For example: taking a Mobile phone as an example of a terminal, the Mobile phone needs to support high performance devices such as an antenna for 5G (5 th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology) Communication, a large-sized camera module, a speaker capable of providing high sound quality, and the like, and these devices will greatly increase the occupation of the Mobile phone space. However, the process limitations of the terminal's thin profile and integrity result in limited space available for the terminal.

Disclosure of Invention

The present disclosure provides a terminal.

According to an embodiment of the present disclosure, there is provided a terminal, including:

a middle frame;

the first circuit board is positioned on the middle frame;

the flat cable has flexibility and comprises a first connecting area and a second connecting area;

the first connecting area is distributed in parallel with the first circuit board;

the second connecting area is provided with a first mounting position, is positioned between the first circuit board and the middle frame and is stacked and distributed with the first circuit board in the thickness direction of the middle frame.

In some embodiments, the middle frame includes an interface surface and a hole wall forming a receptacle, the interface surface being located at an end of the hole wall facing a central location of the middle frame;

the terminal further comprises:

the external socket is aligned with the jack and abutted against the butt joint surface, and the external socket is fixed on the first circuit board and electrically connected with the first circuit board;

the sealing body is coated outside the external socket, the sealing body is positioned between the external socket and the butt joint surface, and a sealing structure is arranged between the external socket and the butt joint surface.

In some embodiments, the seal body comprises: and curing the formed elastic colloid.

In some embodiments, the terminal further comprises:

the connecting plate is arranged on the middle frame;

the loudspeaker is arranged on the connecting plate;

the second circuit board is arranged on the connecting plate and is respectively and electrically connected with the loudspeaker and the frame antenna of the middle frame;

and the limiting structure is connected with the connecting plate and keeps the relative position between the second circuit board and the connecting plate.

In some embodiments, the limiting structure comprises a plurality of limiting sheets distributed in parallel;

the first end of each limiting sheet is connected with the connecting plate, a gap is formed between the second end of each limiting sheet and the connecting plate, and the second circuit board is clamped in the gap; wherein the second end is opposite the first end.

In some embodiments, the middle frame includes a first region for mounting a battery, a second region for mounting the connection board, and a third region for mounting a central processor of the terminal;

the central processing unit is electrically connected with the first circuit board and the flat cable respectively;

the two ends of the cable are respectively and electrically connected with the central processing unit and the second circuit board;

the edge of the connecting plate close to the first area comprises a plurality of fixing structures distributed at intervals, and the fixing structures are used for maintaining the relative position between the cable and the connecting part.

In some embodiments, the terminal further comprises a fingerprint identification component electrically connected with the first mounting location.

The first connection region includes: a second installation position is arranged at the first installation position,

the terminal further comprises: a SIM card socket and/or a screen assembly;

the SIM card seat and the screen component are respectively and electrically connected with different second mounting positions.

In some embodiments, the first mounting location is provided with a connector, and/or the second mounting location is provided with a connector.

In some embodiments, the middle frame has: a through hole;

the screen assembly includes:

the screen and the first circuit board are respectively positioned on two sides of the middle frame;

and the screen connecting wire penetrates through the through hole, and two ends of the screen connecting wire are respectively electrically connected with the screen and the flat cable.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the embodiment, the flat cable and the first circuit board are stacked and distributed in the thickness direction of the middle frame, so that the at least one functional device is connected with the first mounting position on the flat cable, the space below the first circuit board is fully utilized, the space above the first circuit board occupied by the at least one functional device is saved, and the utilization rate of the terminal space is improved. The saved space can be used for installing the battery of the terminal, thereby being beneficial to increasing the size of the battery and improving the capacity of the battery.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

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

Fig. 1 is one of partial structural diagrams of a terminal shown according to an exemplary embodiment;

fig. 2 is a second schematic partial structure diagram of a terminal according to an exemplary embodiment;

fig. 3 is a third schematic diagram illustrating a partial structure of a terminal according to an exemplary embodiment;

FIG. 4 is a fourth partial block diagram of a terminal shown in accordance with an exemplary embodiment;

fig. 5 is a fifth partial structural view of a terminal shown in accordance with an exemplary embodiment;

fig. 6 is a partial structural view of a terminal;

fig. 7 is a sixth schematic diagram illustrating a partial structure of a terminal according to an exemplary embodiment;

FIG. 8 is one of the partial structural schematics at A in FIG. 2;

FIG. 9 is a second schematic view of a portion of the structure at A in FIG. 2;

FIG. 10 is a schematic view of a portion of the structure at B in FIG. 2;

FIG. 11 illustrates one of the connection block and cable connection schematics according to one exemplary embodiment;

FIG. 12 shows a second schematic diagram of the connection of the connector boards and cables according to an exemplary embodiment;

FIG. 13 illustrates a third schematic diagram of a connection of a patch panel and a cable according to an exemplary embodiment;

FIG. 14 shows a fourth schematic of the connection of the connector boards and cables according to an exemplary embodiment;

FIG. 15 shows a fifth schematic view of a connection plate and a cable according to an example embodiment;

FIG. 16 shows a schematic diagram of a connection plate according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 shows a schematic view of a stacking structure between a first circuit board 200 and a flat cable 300, and fig. 2 to 5 are schematic views of partial structures below a center position of a terminal according to an exemplary embodiment.

As shown in fig. 1 and 2, an embodiment of the present disclosure provides a terminal, including:

a middle frame 100;

a first circuit board 200 on the middle frame 100;

a flat cable 300 having flexibility, including a first connection region and a second connection region;

the first connection region is distributed in parallel with the first circuit board 200;

the second connection region has a first mounting position, is located between the first circuit board 200 and the middle frame 100, and is stacked with the first circuit board 200 in a thickness direction of the middle frame 100.

The first circuit board 200 and the flat cable 300 are used for electrically connecting the cpu and the functional device. Functional devices include, but are not limited to: a vibrator, a screen component, a fingerprint identification component 110, a SIM (Subscriber Identity Module) card socket, an external socket 120, a speaker, etc.

The first circuit board 200 and the flat cable 300 can be electrically connected to the functional device through the mounting position. Each of the first circuit board 200 and the flat cable 300 has at least one mounting location (including but not limited to the first mounting location).

The number of first mounting locations on the second connection region is at least one.

The first circuit board 200 includes a first surface and a second surface opposite to the first surface, the second surface facing the middle frame 100, and a second connection region between the second surface and the middle frame 100. Generally, the functional devices are electrically connected to the first surface of the first circuit board 200. Placing the second connection region on the second surface, i.e.: as shown in fig. 1, the second connection region is located below the first circuit board 200.

The first circuit board 200 is generally a rigid board, and the flat cable 300 is a flexible member, and by using the bending property of the flat cable 300, the second connection area of the flat cable 300 can be stacked between the first circuit board 200 and the middle frame 100 more easily, so that the flat cable 300 and the first circuit board 200 are stacked in the thickness direction of the middle frame 100, the space below the first circuit board 200 is fully utilized, and the terminal space is saved.

The flat cable 300 can be made thinner than the first circuit board 200, i.e. the thickness of the flat cable 300 is smaller than the thickness of the first circuit board 200. The flat cable 300 is used for connecting a plurality of functional devices, so that the space can be effectively saved. The second connection region is disposed under the first circuit board 200, so that at least one functional device can be electrically connected to the cpu via the thinner flat cable 300 without depending on the first circuit board 200, and thus, the size of the first circuit board 200 can be made smaller, which is advantageous for further saving space.

In the embodiment of the present disclosure, the thickness direction refers to a Z direction substantially perpendicular to the screen, and a plane on which the screen is located may be referred to as an XY plane, a width direction of the middle frame 100 is referred to as a Y direction, and a length direction of the middle frame 100 is referred to as an X direction.

As shown in fig. 2, the first connection region may extend between the first circuit board 200 and the middle frame 100, and be juxtaposed with the first circuit board 200 in the Y direction.

The second connection region also has at least one mounting location thereon.

The first Circuit Board 200 includes, but is not limited to, a ceramic Circuit Board or a PCB (Printed Circuit Board) Board, etc.

The flat cable 300 includes, but is not limited to, an FPC (Flexible Printed Circuit).

The terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, or a wearable device.

According to some other alternative embodiments, the bezel 100 includes an interface 1152 and an aperture wall 1151 that forms the receptacle 115, the interface 1152 being located at an end of the aperture wall 1151 that faces a central location of the bezel 100;

the terminal further comprises:

an external socket 120 aligned with the receptacle 115 and abutting the interface 1152, the external socket 120 being fixed to the first circuit board 200 and electrically connected to the first circuit board 200;

and a sealing body 180, wherein the sealing body 180 covers the external socket 120, the sealing body 180 is located between the external socket and the abutting surface 1152, and a sealing structure is provided between the external socket 120 and the abutting surface 1152.

Generally, in order to seal the connection between the external jack 120 and the frame 100, a waterproof and dustproof rubber sleeve 10 is sleeved outside the external jack 115. As shown in fig. 6, the waterproof structure has a large size, and occupies a large space in the three directions of X, Y, and Z.

Fig. 7 shows a partial structure diagram of the external connection port 120 of the terminal. Compared with the structure shown in fig. 6, in fig. 7 of the embodiment of the present disclosure, the abutting surface 1152 is located between the external jack 120 and the hole wall 1151, and the sealing body 180 is disposed between the end 121 of the external jack 115 and the abutting surface 1152, so that the space occupied by the sealing structure is saved, and further, the external jack 120 can be made smaller, and the external jack 120 is located further outside (i.e., closer to the outlet of the jack 115), so that the terminal space is saved.

Of the two ends of the insertion hole 115, one end faces the center of the middle frame 100 (i.e., inward) and the other end faces the external environment (i.e., outward) so that an external device can be inserted.

The external socket 120 is used for connecting the terminal with an external device, and data transmission between the terminal and the external device is realized. The external devices include, but are not limited to, earphones, mobile phones, power supplies, computers or playing devices, and the like. For example: one end of the power line is inserted into the jack 115 and then electrically connected with the external jack 120 in the jack 115, and the other end of the power line is electrically connected with the power supply, so that the power supply effect to the terminal is realized.

The external socket 120 may be a USB (Universal Serial Bus) interface, but is not limited thereto.

The sealing body 180 has elasticity, and is compressed by the pressure between the external socket 120 and the abutting surface 1152, and the sealing body 180 fills the gap between the external socket 120 and the abutting surface 1152 by compression deformation to form a sealing structure.

The sealing structure can limit liquid such as water in the external environment or particles such as dust from entering the terminal through the gaps among the jack 115, the external socket 12 and the butt joint surface 1152 in sequence, and influence on functional devices in the terminal is reduced.

According to some other alternative embodiments, the sealing body 180 includes: and curing the formed elastic colloid.

The elastic colloid formed by curing refers to: the liquid glue is solidified to form solid glue.

The sealing body 180 generally needs to form liquid glue on the end portion of the external socket 120 close to the jack 115, after the liquid glue is cured, solid glue (i.e., elastic glue) is formed, and then the external socket 120 is mounted on the middle frame 100, because the solid glue is fixed on the external socket 120, the solid glue can also be tightly abutted against the hole wall of the jack 115 while the external socket 120 is mounted, so as to form a sealing structure.

The sealing body 180 may be a sealing ring, a seal ring, or the like, but is not limited thereto.

Without limitation, the external socket 120 may be fixed to the first circuit board 200 by soldering.

The external socket 120 and the first circuit board 200 are fixed to form an integral component, when the integral component is assembled with the middle frame 100, the integral component is only required to be assembled with the middle frame 100, the external socket 120 and the first circuit board 200 are not required to be assembled with the middle frame 100 respectively, assembling steps are saved, and the assembly efficiency is improved.

According to some other optional embodiments, the terminal further comprises:

a connection plate 160 mounted on the middle frame 100;

a speaker mounted on the connection plate 160;

a second circuit board 400 mounted on the connection board 160 and electrically connected to the speaker and the bezel antenna of the middle frame 100, respectively;

and a position limiting structure connected to the connection plate 160 and maintaining a relative position between the second circuit board 400 and the connection plate 160.

The limiting structure can be a clamping structure, such as a buckle or a clamping groove.

The second circuit board 400 is fixed on the connection board 160 by using the limiting structure, and for the fixation using the adhesive, in order to ensure the fixation effect, the thickness of the adhesive needs to be thinner, and the limiting structure can be made thinner, which is also beneficial to saving space. In addition, the limiting structure also reduces the dispensing steps, and facilitates the installation of the second circuit board 400.

Without limitation, as shown in fig. 4, 8 and 9, the limiting structure is a portion of the connecting plate 160, and the limiting structure and the connecting portion are a unitary structure. The connecting plate 160 with the limiting structure can be integrally formed by injection molding or machining.

Generally, the web 160 and the speaker together form a speaker assembly (i.e., BOX). The second circuit board 400 is fixed on the raise connecting plate 160, so that the speaker assembly and the second circuit board 400 are of an integral structure, and the assembly of the speaker, the second circuit board 400 and the middle frame 100 is also facilitated.

Without limitation, the connection plate 160 may be fixed to the middle frame 100 by a fastener such as a screw.

The second circuit board 400 and the first circuit board 200 are two circuit boards connecting functional devices at different positions. As shown in fig. 2 to 4, the second circuit board 400 and the first circuit board 200 are spaced apart from each other.

According to other alternative embodiments, the limiting structure comprises a plurality of limiting sheets 161 which are distributed in parallel;

a first end of each limiting sheet 161 is connected with the connecting plate 160, a gap is formed between a second end of each limiting sheet and the connecting plate 160, and the second circuit board 400 is clamped in the gap; wherein the second end is opposite the first end.

Without limitation, the gap includes a limiting groove, the limiting piece 161 is located above the limiting groove, and the second circuit board 400 is clamped in the limiting groove.

As shown in fig. 4, 8 and 9, the limiting pieces 161 may be grouped in pairs, each group of two limiting pieces 161 are oppositely arranged, and a space is provided between the two limiting pieces 161.

According to some other alternative embodiments, the middle frame 100 comprises a first area for mounting a battery, a second area 170 for mounting the connection board 160, and a third area for mounting the central processor of the terminal;

the central processor is electrically connected with the first circuit board 200 and the flat cable 300 respectively;

a cable 190 having both ends electrically connected to the central processor and the second circuit board 400, respectively;

the connecting plate 160 includes a plurality of fixing structures 162 spaced apart from each other near the edge of the first region, and the fixing structures 162 are used for maintaining the relative position between the cable 190 and the connecting portion.

In some terminals, the third area is located near the top end of the middle frame 100, the second area 170 is located near the bottom end of the middle frame 100, and the first area is located between the second area 170 and the third area. And functional devices such as a camera, a receiver and the like are arranged in the third area. The distribution of the first, second, and third regions is not limited thereto.

The battery capacity can be increased by reducing the space of the second region 170, allocating the saved space to the space of the first region.

The plurality of fixing structures 162 spaced apart may maintain the relative positions of the cable 190 and the connection plate 160 by fixing a portion of the cable 190 without completely fixing the cable 190. This type of securing reduces the space occupied by all of the securing structures 162, and saves space between at least two of the securing structures 162. For example: as shown in fig. 13 and 15, two ends of the connecting plate 160 near the edge of the first region are respectively provided with a fixing structure 162, and the fixing structures 162 occupy a part of space, but the spacing region between the two fixing structures 162 is recessed away from the first region, so that the space of the first region is less squeezed, the space of the first region is increased, and the battery capacity is increased.

The cable 190 connects the second region 170 and the third region, and as shown in fig. 11 to 16, the fixing structure 162 fixes the cable 190 at a position where the cable 190 passes.

The cable 190 may be a coaxial cable 190, but is not limited thereto.

As shown in fig. 2 to 4, the second circuit board 400 and the first circuit board 200 are both close to the edge of the middle frame 100, the edge of the middle frame 100 has a frame antenna, and the second circuit board 400 at least includes a radio frequency circuit, which is electrically connected to the frame antenna and used for receiving and sending wireless signals through the frame antenna. As shown in fig. 13, the cable 190 is connected to the second circuit board 400, and when the first circuit board 200 has the rf circuit, the cable 190 may be connected. Cable 190 may be used to convey data that the rf circuitry conveys to the central processor.

As shown in fig. 14 and 15, the fixing structure 162 may be a snap or a slot. For example: the fixing structure 162 may be defined by a fixing sheet 1621, wherein the fixing sheet 1621 fixes the cable in the same or similar manner as the limiting sheet 161 fixes the second circuit board 400.

According to other optional embodiments, the terminal further comprises a fingerprint identification component 110, and the fingerprint identification component 110 is electrically connected with the first mounting location.

In some embodiments, the fingerprint identification component 110 includes: fingerprint sensor 111, fingerprint connecting wire 112 and fingerprint connector 113, fingerprint sensor 111 and fingerprint connector 113 are connected to fingerprint connecting wire 112 electricity respectively, and fingerprint connector 113 is connected with first installation position electricity. As shown in fig. 2, the fingerprint sensor 111 is located above the first circuit board 200, and the fingerprint connection line 112 is disposed between the first circuit board 200 and the middle frame 100 and electrically connected to the first installation site through the fingerprint connector 113.

The fingerprint connector 113 may be a Board-to-Board connector (i.e., BTB). At this time, the first mounting location is also provided with a connector that mates with the fingerprint connector 113.

Generally, the fingerprint connector 113 is directly electrically connected to the first circuit board 200, and after the connection method of the present disclosure is adopted, the fingerprint connector 113 may be electrically connected to the flat cable 300 under the first circuit board 200 without being electrically connected to the first circuit board 200, which is beneficial to saving space.

According to some other optional embodiments, the first connection region comprises: the second installation position is arranged on the base plate,

the terminal further comprises: SIM card holder 150 and/or a screen component;

the SIM card socket 150 and the screen component are electrically connected to different second mounting locations respectively.

As shown in fig. 2-4, the SIM card holder 150 can be made smaller in size to further save space. Generally, the area of the SIM card socket 150 is about 260mm ² The SIM card holder 150 of the embodiments of the present disclosure may be smaller than this size, for example: the area of the SIM card seat 150 of the embodiment of the disclosure is not more than 110mm ² And may be specifically 104mm ² 、105mm ² 、106mm ² 、107mm ² 、108mm ² Or 110mm ² Or between any two values.

According to other alternative embodiments, the first mounting location is provided with a connector, and/or the second mounting location is provided with a connector.

According to some other alternative embodiments, the middle frame has: a through-hole 140;

the screen assembly includes:

a screen and the first circuit board 200 are respectively positioned at both sides of the middle frame 100;

the screen connecting wire 130 penetrates through the through hole 140, and both ends of the screen connecting wire are electrically connected with the screen and the flat cable 300 respectively.

The screen connection line 130 includes, without limitation, an FPC. The screen needs to be powered on and needs various signal processing such as touch identification, and therefore, the number of the screen connecting lines 130 can be increased, for example: four screen connection lines 130 are provided. This way, the length of the through-hole 140 can be reduced to improve the structural strength of the middle frame 100.

The screen connection line 130 may be electrically connected to the flat cable 300 through a connector.

In some embodiments, the width of the through-hole 140, i.e., the width of the screen connection line 130 where it passes through the through-hole 140, is approximately 8.2mm.

Features disclosed in several of the product embodiments provided in this disclosure may be combined in any combination to yield new product embodiments without conflict.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A terminal, characterized in that the terminal comprises:

a middle frame;

the first circuit board is positioned on the middle frame;

2. A terminal according to claim 1, wherein the bezel comprises an aperture wall forming a receptacle and an abutment surface at an end of the aperture wall facing a central location of the bezel;

the terminal further comprises:

the external socket is aligned with the jack and abutted against the abutting surface, and the external socket is fixed on the first circuit board and electrically connected with the first circuit board;

3. The terminal of claim 2, wherein the seal body comprises: and curing the formed elastic colloid.

4. The terminal of claim 1, further comprising:

the connecting plate is arranged on the middle frame;

the loudspeaker is arranged on the connecting plate;

and the limiting structure is connected with the connecting plate and used for keeping the relative position between the second circuit board and the connecting plate.

5. A terminal according to claim 4, wherein the limiting structure comprises a plurality of limiting pieces distributed in parallel;

6. A terminal according to claim 4, wherein the middle frame comprises a first region for mounting a battery, a second region for mounting the connection board, and a third region for mounting a central processing unit of the terminal;

7. The terminal of claim 1, further comprising a fingerprint identification component electrically coupled to the first mounting location.

8. The terminal according to claim 1, wherein the first connection region comprises: a second installation position is arranged at the first installation position,

the terminal further comprises: a SIM card holder and/or a screen assembly;

9. A terminal according to claim 8, characterised in that the first mounting location is provided with a connector and/or the second mounting location is provided with a connector.

10. The terminal of claim 8, wherein the middle frame has: a through hole;

the screen assembly includes: