A mobile terminal

Abstract

The present disclosure relates to a mobile terminal, comprising a frame, having a first opening; a middle frame, located inside the frame, the middle frame having a second opening, the second opening and the first opening being in communication; an infrared emitter, located in the second opening; an optical device, a part of which is located in the first opening and another part of which is located in the second opening, for conducting infrared light emitted by the infrared emitter to the outside of the mobile terminal; wherein the infrared light conducted by the optical device can irradiate from the first opening to the side of the frame away from the middle frame. While realizing the infrared function, since the optical device and the infrared emitter are located inside the middle frame and the frame itself, the additional space occupied by the mobile terminal is reduced, that is, the space outside the surface of the middle frame and the frame is reduced, thereby realizing the effect of saving the space inside the mobile terminal, providing space for other components in the mobile terminal, and improving the space utilization of the mobile terminal.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal equipment, and in particular to a mobile terminal. Background Art

[0002] In the era of rapid mobile device development, the requirements for their structural configuration are becoming increasingly stringent. Mobile terminals contain many functional components, such as speakers and infrared transmitter modules. Typically, these components are installed independently, each occupying its own space within the mobile terminal. Furthermore, mobile terminals also include other components such as light sensors, distance sensors, receivers, and flashlights, all of which require internal space.

[0003] As mobile terminals have more and more functions, more and more functional components are required, which will cause a serious shortage of internal space in the mobile terminals. Summary of the Invention

[0004] The present disclosure provides a mobile terminal.

[0005] According to a first aspect of an embodiment of the present disclosure, a mobile terminal is provided, comprising: a frame having a first opening; a middle frame located on an inner side of the frame, the middle frame having a second opening, the second opening being connected to the first opening; an infrared emitter located in the second opening; and an optical device, a portion of which is located in the first opening and the other portion of which is located in the second opening, for transmitting infrared light emitted by the infrared emitter to the outside of the mobile terminal; wherein the infrared light transmitted by the optical device can be irradiated from the first opening to a side of the frame away from the middle frame.

[0006] In another embodiment, based on the emission direction of the infrared light, the first opening and the second opening are staggered with each other; the first side of the first opening is connected to an end of the second opening close to the first opening; wherein the first side of the first opening is the side close to the second opening.

[0007] In another embodiment, the first opening and the second opening are both blind holes or slots, and the opening of the first opening faces the outside of the frame.

[0008] In another embodiment, the mobile terminal further includes: a speaker located on the first surface of the middle frame; a display screen located on the second surface of the middle frame; the second surface is the opposite side of the first surface; the middle frame also has: a third opening; the third opening is located between the speaker and the display screen and the speaker covers the opening of the third opening; wherein the inner side wall of the third opening, the diaphragm of the speaker and the display screen form a first sound cavity of the speaker.

[0009] In another embodiment, the opening of the third opening is smaller than the maximum cross-sectional area of ​​the diaphragm of the speaker; and one end of the second opening away from the first opening is located on the first surface.

[0010] In another embodiment, the mobile terminal further includes: a middleware, the middleware including a first part and a second part connected to each other; the first part of the middleware is located at least between the display screen and the middle frame, and the first part of the middleware and the middle frame have: a first sound transmission channel, and the first sound transmission channel is connected to the first sound cavity; the second part of the middleware is located between the display screen and the frame, and the second part of the middleware has: a second sound transmission channel, and the second sound transmission channel is connected to the first sound transmission channel, and an end of the second sound transmission channel away from the first sound transmission channel is exposed to the second part of the middleware; wherein the area of ​​the display screen close to the middleware is separated from the second sound transmission channel by the second part of the middleware.

[0011] In another embodiment, the mobile terminal further includes: a dustproof net located between the first sound transmission channel and the second sound transmission channel; and a dustproof net fixing member located between the dustproof net and the middle member, for fixing the dustproof net on the middle member.

[0012] In another embodiment, the optical device has at least: a light incident surface and a light emitting surface; the light incident surface faces the emitting surface of the infrared emitter; and the light emitting surface is located on the side where the outer surface of the frame is located.

[0013] In another embodiment, the optical device further includes: an infrared emitter placement groove, located at an end of the second opening away from the first opening, and the infrared emitter is installed in the infrared emitter placement groove; wherein, the side of the infrared emitter placement groove facing the emitting surface of the infrared emitter serves as the light incident surface.

[0014] In another embodiment, all surfaces of the optical device except the light incident surface and the light emitting surface are light shielding surfaces.

[0015] In another embodiment, the optical device is an optical silicone device.

[0016] In another embodiment, the mobile terminal further includes: a protective lens, located on one side of the light-emitting surface of the optical device, and the protective lens is stacked with the light-emitting surface of the optical device, and the area of ​​the protective lens is not less than the area of ​​the light-emitting surface; wherein the side of the protective lens away from the optical device is flush with the outer surface of the frame; a protective lens adhesive, located between the frame and the protective lens, for fixing the protective lens on the frame.

[0017] In another embodiment, the cross-sectional area of ​​a portion of the optical device located in the first opening is greater than the cross-sectional area of ​​a portion of the optical device located in the second opening; when the optical device is located in the first opening and the second opening, the outer surface of the optical device is in contact with the inner surfaces of the first opening and the second opening.

[0018] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0019] The mobile terminal in the disclosed embodiment includes: a frame, a middle frame, an infrared emitter, and an optical device. The frame has a first opening; the middle frame is located inside the frame and has a second opening, the second opening communicating with the first opening; the infrared emitter is located within the second opening; the optical device is partially located within the first opening and partially located within the second opening, and after the infrared emitter emits infrared light, the optical device is used to transmit the infrared light emitted by the infrared emitter toward the outside of the mobile terminal; the infrared light transmitted by the optical device can be irradiated from the first opening toward the side of the frame away from the middle frame.

[0020] This solution involves opening holes in the middle frame and the frame, which are connected to each other. Optical devices are then placed within the openings in the middle frame and the frame, with one portion of the optical device located within the frame opening and the other portion located within the middle frame opening. An infrared emitter is also located within the middle frame opening. After the infrared emitter emits infrared light, it is transmitted to the outside of the mobile terminal through the optical device. While achieving infrared functionality, since the optical device and infrared emitter are located within the openings in the middle frame and the frame, the light source emission and conduction structures are both implemented within the frame and middle frame openings, reducing the extra space occupied within the mobile terminal. Specifically, the space occupied outside the surface of the middle frame and the frame is reduced, thereby saving space within the mobile terminal and providing space for other components within the mobile terminal, thereby improving the space utilization of the mobile terminal.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 is a structural diagram of a speaker according to an exemplary embodiment;

[0024] Figure 2 is a structural diagram of an infrared emitter according to an exemplary embodiment;

[0025] Figure 3 is a schematic diagram of the top structure of another mobile terminal according to an exemplary embodiment;

[0026] Figure 4 According to an exemplary embodiment, Figure 3 Corresponding structural diagram;

[0027] Figure 5 is a structural diagram of an infrared emission module according to an exemplary embodiment;

[0028] Figure 6 Part a is a schematic structural diagram of a frame and a middle frame according to an exemplary embodiment;

[0029] Figure 6 Part b is a schematic structural diagram of an optical device according to an exemplary embodiment;

[0030] Figure 6 Part c is a schematic diagram showing that the optical device and the infrared emitter are located within the frame and the middle frame according to an exemplary embodiment;

[0031] Figure 7 is a schematic structural diagram of another mobile terminal according to an exemplary embodiment;

[0032] Figure 8 According to an exemplary embodiment, Figure 7 Corresponding explosion effect diagram;

[0033] Figure 9 is a schematic structural diagram of a second opening according to an exemplary embodiment;

[0034] Figure 10 is a schematic structural diagram of an optical device according to an exemplary embodiment;

[0035] Figure 11 is a schematic structural diagram of another optical device according to an exemplary embodiment;

[0036] Figure 12is a schematic structural diagram of a sound output channel of a speaker according to an exemplary embodiment;

[0037] Figure 13 According to an exemplary embodiment Figure 12 Corresponding cross-sectional structural diagram;

[0038] Figure 14 According to an exemplary embodiment, Figure 13 The corresponding main view;

[0039] Figure 15 is a partial schematic diagram of a mobile terminal according to an exemplary embodiment;

[0040] Figure 16 is another partial schematic diagram of a mobile terminal according to an exemplary embodiment;

[0041] Figure 17 This is a main view of a mobile terminal according to an exemplary embodiment;

[0042] Figure 18 is a schematic structural diagram of another mobile terminal according to an exemplary embodiment;

[0043] Figure 19 is a schematic structural diagram of another mobile terminal according to an exemplary embodiment;

[0044] Figure 20 The figure is a block diagram of a terminal device according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments 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.

[0046] The higher the screen-to-body ratio of a full-screen terminal, the narrower the black borders at the top and bottom of the screen. These narrow borders squeeze the structural space above and below the terminal. Typically, a terminal only has one speaker (also called a loudspeaker), and the speaker is designed at the bottom of the terminal. To enhance the terminal experience, a speaker is designed at the top and bottom of the terminal to achieve a stereo effect. To meet functional requirements, an infrared component is designed at the top of the terminal to implement infrared remote control, or a speaker and an infrared component are designed at the bottom of the terminal, or a speaker and an infrared component are designed at the top and bottom of the terminal respectively. The development of full-screen terminals has resulted in a serious shortage of space in terminals, making it difficult to squeeze out space for two speakers and two infrared components.

[0047] refer to Figure 1 , is a structural diagram of a loudspeaker, Figure 2 A schematic diagram of the structure of an infrared emitter.

[0048] Typically, due to the lack of space inside a mobile terminal, the mobile terminal generally has a speaker A (also known as a speaker) and an infrared emission module B. For example, the speaker A is located at the bottom of the mobile terminal. Figure 1 ; Infrared emission module B is located on the top of the mobile terminal, refer to Figure 2 The speaker and infrared emission module A and B are separately provided, and each occupies the internal space of the mobile terminal. This easily results in a waste of the internal space of the mobile terminal, thereby causing insufficient internal space of the mobile terminal.

[0049] refer to Figure 3 , is a schematic diagram of the top structure of another mobile terminal, Figure 4 For Figure 3 Corresponding structural diagram: The top speaker A and the top infrared emission module B are both located at the top of the mobile terminal, and the top speaker A and the top infrared emission module B are respectively located at the top of the mobile terminal, and each occupies a certain internal space.

[0050] refer to Figure 5 , is a schematic diagram of the structure of an infrared emission module, which can be Figure 2 、 Figure 3 or Figure 4 The corresponding infrared emission lighting structure. Figure 5 As shown, the infrared emission module B includes an infrared emitter B1 and a light guide B2. The infrared emitter B1 is located on the mainboard C, and the light guide B2 is located on the middle frame D. The infrared emitter B1 and the light guide B2 are adjacent to each other and have an overlapping area. After the infrared emitter B1 emits infrared light, the light guide B2 can transmit the infrared light to the outside of the mobile terminal.

[0051] In this structure, the infrared emitter B1 is located on the mainboard C and can be fixed to the mainboard C by welding or other fixing methods. Since the infrared emitter B1 itself has a certain volume, the infrared emitter B1 will occupy the space on the mainboard C after being fixed on the mainboard C, resulting in a reduction in the remaining space on the mainboard C, thereby resulting in insufficient internal space in the mobile terminal and inability to provide installation space for other devices.

[0052] The first portion B21 of the light guide B2 is located within the opening of the middle frame D, while the second portion B22 is located inside the middle frame D. The second portion B22 of the light guide B2 is connected via light guide adhesive E, securing the light guide B2 to the middle frame D. The side of the second portion B22 of the light guide B2 facing away from the light guide adhesive E abuts against the motherboard C, which also serves to secure the light guide B2. The emitting surface of the infrared emitter B1 faces the second portion B22 of the light guide B2, and there is an overlapping area between the emitting surface of the infrared emitter B1 and the first portion B21 of the light guide B2.

[0053] In this case, the second part B22 of the light guide column B2 will occupy the internal space of the mobile terminal, resulting in insufficient internal space of the mobile terminal. The light guide column adhesive E fixes the light guide column B2 on the middle frame D. Since the light guide column adhesive E itself has a certain thickness, the internal space occupied by the light guide column B2 is further increased.

[0054] The common design scheme has the following shortcomings:

[0055] (1) Since the speaker's sound cavity and infrared structure design take up a large structural space, the separate design of the speaker and infrared will take up a large structural space, resulting in insufficient space for the terminal motherboard components and affecting the realization of other functions of the terminal.

[0056] (2) Since the infrared light guide is bonded to the middle frame using the adhesive on the back of the infrared light guide, and the infrared emitter is soldered to the motherboard, there is no direct positioning relationship between the infrared light guide and the infrared emitter. The design requires that the center offset of the infrared light guide and the center of the infrared emitter cannot exceed 0.2mm. During the drop test or vibration test, if the adhesive on the back of the infrared light guide is not activated or the adhesive is insufficient, the infrared light guide will become loose (in the infrared light guide structure, after the terminal is assembled, a terminal vibration test will be performed, and the calibration test will give the infrared emitter a range of light intensity values ​​based on the current structural state of the terminal. After the calibration test is completed, the terminal vibration test and drop test will be performed. It is required that after the test is completed, the light intensity value cannot exceed the range of the calibrated light intensity value, so the consistency of the center of the infrared light guide and the center of the infrared emitter must be very good. Therefore, the center offset of the infrared light guide and the center of the infrared emitter cannot exceed 0.2mm, and there cannot be large movement and looseness).

[0057] (3) Since the infrared light guide column is made of PMMA or PA material, which is relatively hard, the infrared light guide column must avoid the front flash core in the XYZ direction. This makes the infrared light guide column relatively large in size. At the same time, the front flash core must be soldered to the motherboard, which requires a large motherboard area, thereby wasting a large amount of structural space on the terminal head. When the terminal falls, the deformation of the top of the terminal is likely to cause the infrared light guide column to deform and crack, thereby affecting the infrared function.

[0058] (4) The infrared light guide is assembled on the middle frame by the adhesive on the back of the infrared light guide. The light-emitting surface of the infrared light guide is exposed. When the terminal falls, the top of the terminal is deformed by force, and the infrared light guide is easily loosened, causing the infrared light guide to collapse, affecting the appearance. At the same time, because the light-emitting surface of the infrared light guide is exposed, assembly tolerance and manufacturing tolerance may cause the infrared light guide to collapse or protrude from the surface of the middle frame, affecting the user experience.

[0059] (5) The display screen and the middle frame are connected by glue. Since the glue surface passes through the speaker's sound output channel, the glue can easily overflow into the speaker's sound output channel, affecting the speaker's sound quality.

[0060] (6) Normally, one sound channel is located at the top of the terminal, and the other is located in the gap between the display screen and the middle piece (i.e., the screen decoration). This position requires the width of the sound channel to be at least 0.6 mm. This will result in a large gap between the display screen and the screen decoration. The gap is prone to dust, hair, and other foreign objects entering, affecting the sound of the speaker. At the same time, the gap is located on the exterior surface, which looks ugly and affects the user experience.

[0061] The present disclosure provides a mobile terminal, referring to Figure 6 , Figure 6 Part a is a structural diagram of the border and middle frame. Figure 6 Part b is a schematic diagram of the structure of the optical device. Figure 6 Part c is a schematic diagram showing that the optical device and the infrared emitter are located within the frame and the middle frame. The mobile terminal includes:

[0062] The frame 1 has a first opening 101;

[0063] The middle frame 2 is located inside the frame 1 and has a second opening 201, which is connected to the first opening 101. In this embodiment, the reference numerals of the middle frame are the same as those of the frame 1. Figures 1 to 5 The reference numerals of the middle frames in FIG. 1 are different.

[0064] Infrared emitter 3, located in the second opening 201;

[0065] The optical device 4, a portion of which is located in the first opening 101 and the other portion of which is located in the second opening 201, is used to transmit the infrared light emitted by the infrared emitter 3 to the outside of the mobile terminal; wherein the infrared light transmitted by the optical device 4 can be irradiated from the first opening 101 to the side of the frame 1 away from the middle frame 2.

[0066] The mobile terminal may include at least a mobile phone, a tablet computer, a vehicle-mounted central control device, a wearable device, a smart device, etc., and the smart device may include smart office equipment and smart home equipment, etc.

[0067] The mobile terminal includes a bezel 1, which is connected to a middle frame 2. After the bezel 1 and the middle frame 2 are connected, the plane of the bezel 1 is approximately or substantially perpendicular to the plane of the middle frame 2, that is, the bezel 1 is perpendicular to the middle frame 2. The bezel 1 and the middle frame 2 can also be a single component, that is, the bezel 1 and the middle frame 2 are integrated, and the structure of the bezel 1 and the middle frame 2 remains unchanged. For ease of description, the bezel 1 and the middle frame 2 are described separately in this embodiment.

[0068] The frame 1 has a first opening 101 , and the size and shape of the first opening 101 are not limited. For example, the outer diameter of the opening is smaller than the width of the frame 1 , and the shape of the opening can be circular or square.

[0069] The middle frame 2 is located in the center of the mobile terminal and is used to secure functional components such as the processor and motherboard. It is located inside the frame 1 and is connected to the inner side of the frame 1. The middle frame 2 has a second opening 201, which communicates with the first opening 101. The size and orientation of the second opening 201 are not limited; it only needs to be connected to the first opening 101 and accommodate the infrared emitter 3.

[0070] The infrared emitter 3 is located in the second opening 201 and is used to send infrared light to the optical device 4 .

[0071] The first portion of the optical device 4 is positioned within the first opening 101, and the second portion is positioned within the second opening 201. Specifically, the portion positioned within the first opening 101 is referred to as the first portion 401 of the optical device 4, and the portion positioned within the second opening 201 is referred to as the second portion 402 of the optical device 4. The optical device 4 can be used to transmit infrared light emitted by the infrared emitter 3 toward the exterior of the mobile terminal. After the infrared emitter 3 transmits infrared light toward the optical device 4, the infrared light is transmitted by the optical device 4. The infrared light transmitted by the optical device 4 can then be directed from the first opening 101 toward the side of the frame 1 away from the middle frame 2. The side of the frame 1 away from the middle frame 2 is considered the exterior of the frame 1. In other words, the infrared light can sequentially pass through the second portion 402 and first portion 401 of the optical device 4 before being emitted from the first portion 401 of the optical device 4 to the exterior of the mobile terminal.

[0072] The main technical idea of the scheme is to place the infrared emitter 3 and the optical device 4 inside the middle frame 2 and the bezel 1, the position of the first opening 101 in the bezel 1 and the position of the second opening 201 in the middle frame 2 are not limited, as long as the first opening 101 and the second opening 201 are communicated, the infrared emitter 3 can be placed in the second opening 201, part of the optical device 4 can be placed in the first opening 101, and the other part can be placed in the second opening 201, which can realize the irradiation of infrared light from the first opening 101 to the side of the bezel 1 away from the middle frame 2. The structure of the light source emission and conduction is realized through the opening of the bezel 1 and the middle frame 2, that is, the infrared emitter 3 and the optical device 4 are located in the opening of the middle frame 2 and the bezel 1, thereby saving the space inside the mobile terminal. While realizing the infrared function, the optical device 4 and the infrared emitter 3 are located in the opening of the middle frame 2 and the bezel 1 itself, without occupying the space of the mobile terminal, that is, without occupying the space outside the surface of the middle frame 2 and the bezel 1, thereby realizing the effect of saving the space inside the mobile terminal, providing space for other components in the mobile terminal, and improving the space utilization of the mobile terminal.

[0073] Reference Figure 7 In one embodiment, the first opening 101 and the second opening 201 are both blind holes or both grooves, and the first opening 101 and the second opening 201 become a through hole after being communicated.

[0074] In another embodiment, the first opening 101 does not penetrate the bezel 1, and the opening of the first opening 101 faces the outside of the bezel 1. That is, the first opening 101 is a blind hole or a groove, the opening of the first opening 101 faces the outside of the bezel 1 and is communicated with the outside, and the bottom of the blind hole or the bottom of the groove is communicated with the second opening 201.

[0075] The first opening 101 and the second opening 201 are staggered, and the second opening 201 is also a blind hole or a groove, the opening of the second opening 201 is located on the surface of the middle frame, and the bottom of the opening or the bottom of the groove is communicated with the first opening 101.

[0076] In one embodiment, the first opening 101 and the second opening 201 are staggered with each other based on the light emitting direction of the infrared light. The light emitting direction of the infrared light can be the direction of the light emitting axis of the infrared light emitted by the emitting surface of the infrared emitter 3. In this embodiment, after the infrared light is emitted from the optical device 4, the direction of the light emitting axis of the infrared light is perpendicular to the plane where the bezel 1 is located. The first side of the first opening 101 is communicated with one end of the second opening 201 close to the first opening 101, and the first side of the first opening 101 is the side close to the second opening 201.

[0077] Since the first opening 101 and the second opening 201 are staggered in the direction of infrared light emission, the first opening 101 is connected to the second opening 201 through the first side edge thereof. Specifically, the side edge of the first opening 101 close to the second opening 201 is connected to the bottom of the hole or groove of the second opening 201, thereby connecting the first opening 101 and the second opening 201.

[0078] In one embodiment, the first opening 101 and the second opening 201 are staggered with each other, which may include: the first opening 101 and the second opening 201 are not on the straight line where the optical axis of the infrared emitter is located at the same time, the first opening 101 is on the straight line where the light-emitting axis of the infrared emitter is located, and the second opening 201 is not on the straight line where the optical axis of the infrared emitter is located.

[0079] It may also include: in the direction perpendicular to the frame 1 , there is no overlapping area between the first opening 101 and the second opening 201 , or there is a partial overlapping area between the first opening 101 and the second opening 201 .

[0080] In another embodiment, the bottom of the first opening 101 is located on the same straight line as the bottom of the second opening 201 , and the two openings are connected through the bottom of the first opening 101 and the bottom of the second opening 201 .

[0081] In one embodiment, the first opening 101 and the second opening 201 are located on the same straight line, and the straight line formed by the first opening 101 and the second opening 201 is located on the plane where the middle frame 2 is located.

[0082] The middle frame 2 has a second opening 201, a portion of the optical device 4 is located in the second opening 201, and the infrared emitter 3 is also located in the second opening 201. This can reduce the situation where the optical device 4 and the infrared emitter 3 are all located in the first opening 101 of the frame 1, resulting in the first opening 101 being larger and occupying more space inside the frame 1. That is, the size of the first opening 101 is reduced, thereby reducing the impact on the strength of the frame 1.

[0083] In another embodiment, the second opening 201 may be connected to the first opening 101 via a communication channel parallel to the plane of the middle frame 2. In this embodiment, the channel located between the first opening 101 and the second opening 201 and connecting the first opening 101 and the second opening 201 serves as the communication channel.

[0084] In another embodiment, one end of the first opening 101 can be located at the side wall of the second opening 201 and connected to the second opening 201 at the side wall of the second opening 201, that is, there is no connecting channel between the first opening 101 and the second opening 201, and they are directly connected.

[0085] In one embodiment, the communication channel may also be a part of the first opening 101 or a part of the second opening 201 .

[0086] In another embodiment, a structural diagram of another mobile terminal is provided. Figure 7 , is a structural diagram of the mobile terminal, Figure 8 Schematic diagram of the explosion effect of the mobile terminal. Figure 6 In addition to the structure shown above, it also includes:

[0087] The speaker 5 is located on the first surface of the middle frame 2; the reference numerals of the speaker in this embodiment are the same as those in the embodiment of the present invention. Figures 1 to 4 The speakers in FIG. 1 are labeled differently.

[0088] The display screen 6 is located on the second surface of the middle frame 2; the second surface is opposite to the first surface.

[0089] The middle frame 2 also has a third opening 202 located between the speaker 5 and the display screen 6, with the speaker 5 covering the opening of the third opening 202. The inner wall of the third opening 202, the diaphragm of the speaker 5, and the display screen 6 form a first sound cavity 7 of the speaker 5. A speaker in a mobile terminal can have a front sound cavity and a rear sound cavity. The first sound cavity 7 can be the front sound cavity of the speaker 5 in the mobile terminal, the sound cavity toward which the diaphragm of the speaker 5 faces. Since the speaker 5 covers the third opening 202, the sound emitted by the speaker 5 is transmitted into the first sound cavity 7.

[0090] The middle frame 2 is located inside the mobile terminal. The middle frame 2 is a fixed plate that serves as a mounting platform for other devices and has two surfaces. In this embodiment, the side facing the display screen 6 is referred to as the second surface, and the surface facing the other direction is referred to as the first surface. The first surface and the second surface are opposite surfaces. Relative to the mobile terminal, the side facing the first surface is the back side of the mobile terminal, and the side facing the second surface is the front side of the mobile terminal. The speaker 5 is located on the first surface, and the side where the speaker 5 is located is the back side, while the side where the display screen 6 is located is the front side. The display screen 6 refers to the display screen used on the front side of the mobile terminal. In some mobile terminals, the back side of the mobile terminal also has a display screen. The back side display screen and the speaker are located on the same side of the middle frame 2, so the display screen 6 does not include the back side display screen.

[0091] The third opening 202 is located on the middle frame 2. The opening 202 connects the two surfaces of the middle frame 2. The third opening 202 is not connected to the second opening 201 and the first opening 101. The third opening 202 is located between the speaker 5 and the display screen 6. After the opening is made on the middle frame 2, the opening is an open space. At the same time, since the speaker 5 covers the opening of the third opening 202, that is, the sound-emitting surface of the speaker 5, including the diaphragm, faces the third opening 202 and covers the opening of the third opening 202. Since the display screen 6 is located on the second surface of the middle frame 2, the inner side wall of the third opening 202, the diaphragm of the speaker 5 (not shown in the figure) and the display screen 6 can enclose the first sound cavity 7 of the speaker 5. The first sound cavity 7 can be used for sound amplification and sound transmission, etc.

[0092] In one embodiment, the speaker 5 covers the opening of the third opening 202, which may include: the speaker 5 completely covers the opening of the third opening 202. For example, in a direction perpendicular to the plane of the middle frame 2, the third opening 202 is completely located within the sound output plane of the speaker 5.

[0093] In one embodiment, the area where the second opening 201 in the middle frame 2 is located is located between the speaker 5 and the display screen 6 , and the second opening 201 may have an overlapping area with the speaker 5 in a direction perpendicular to the plane where the middle frame 2 is located.

[0094] In one embodiment, the opening of the third opening 202 is smaller than the maximum cross-sectional area of ​​the diaphragm of the speaker 5. The opening of the end of the third opening 202 adjacent to the speaker 5, i.e., the end of the third opening 202 closest to the speaker 5, is smaller than the maximum cross-sectional area of ​​the diaphragm of the speaker 5. This facilitates the transmission of sound from the speaker 5 to the third opening 202.

[0095] In one embodiment, the mobile terminal further includes: a first sound cavity sealing foam 8, the first sound cavity sealing foam 8 being located between the speaker 5 and the middle frame 2, and being located around the third opening 202. The first sound cavity sealing foam 8 may be annular, and after the first sound cavity sealing foam 8 seals the speaker 5 and the middle frame 2, the opening of the third opening 202 is located within the first sound cavity sealing foam. The speaker 5 is sealed at the position where the speaker 5 is connected to the middle frame 2 by the first sound cavity sealing foam 8, thereby achieving sealing of the first sound cavity 7, reducing the leakage of sound from the connection between the speaker 5 and the middle frame 2 to other positions, thereby improving the volume and sound quality.

[0096] In another embodiment, reference Figure 9, which is a schematic diagram of the structure of a second opening. In this embodiment, one end 2011 of the second opening 201 is connected to the first opening 101, and the other end 2012 of the second opening 201, i.e., the end away from the first opening 101, is located on the first surface of the middle frame 2, making it easy to install and replace the infrared emitter 3 from the first surface.

[0097] In another embodiment, reference Figure 10 , is a schematic diagram of the structure of an optical device. The optical device 4 has at least: a light incident surface 401 and a light emitting surface 402, the light incident surface 401 faces the emission surface of the infrared emitter 3, and the light emitting surface 402 is located on the side where the outer surface of the frame 1 is located.

[0098] In this embodiment, the shape of the optical device 4 is the same as the shape after the first opening 101 and the second opening 201 are connected. Part of the optical device 4 is located in the first opening 101, and the other part is located in the second opening 201. The two parts of the optical device 4 are connected as one. Figure 9 The two parts of the optical device are not shown. The optical device 4 can be an integrally formed optical device, and can be disposed within the first opening 101 and the second opening 201 by injection molding or other methods. The optical device of this embodiment includes a light-emitting surface 402 and a light-entering surface 403, and can guide the infrared light emitted by the infrared emitter 3 through the light-entering surface 401 and then transmit the infrared light through the light-emitting surface 402 to the outside of the mobile terminal.

[0099] The light emitting surface of the infrared emitter 3 faces the light incident surface of the optical device 4 , and the center of the emitting surface of the infrared emitter 3 coincides with the center of the light incident surface, so as to facilitate the emission of infrared light into the optical device 4 .

[0100] In one embodiment, the optical device 4 may be a light guide column.

[0101] In another embodiment, reference Figure 11 , is a schematic structural diagram of another optical device, which, after having a light incident surface and a light exit surface, further includes:

[0102] The infrared emitter placement groove 403 is located at the other end 2012 of the second opening 201 away from the first opening 101, and the infrared emitter 3 is installed in the infrared emitter placement groove 403; wherein, the side of the infrared emitter placement groove 403 facing the emitting surface of the infrared emitter 3 serves as the light incident surface of the optical device 4.

[0103] Under normal circumstances, when the mobile terminal falls or suffers a severe collision, the infrared emitter 3 will move relative to the optical device 4. In this embodiment, the infrared emitter placement groove 403 can be used to fix the infrared emitter 3 within the optical device 4, thereby reducing the relative movement of the infrared emitter 3 and the optical device 4, thereby reducing the occurrence of the offset between the center of the emitting surface of the infrared emitter 3 and the center of the light incident surface of the optical device 4, thereby reducing the offset between the center of the emitting surface of the infrared emitter 3 and the center of the light incident surface of the optical device 4, and improving the light transmission effect.

[0104] Placing the infrared emitter 3 in the infrared emitter placement groove 403 can further reduce the space occupied on the surface of the middle frame 2. The infrared emitter 3 and the optical device 4 can be installed through the second opening 201. The infrared emitter 3 and the optical device 4 no longer occupy the surface of the middle frame 2 or even other space in the mobile terminal, thereby saving space in the mobile terminal.

[0105] In another embodiment, an infrared emitter adhesive may also be included, which is used to adhere the infrared emitter 3 to the infrared emitter placement groove 403, further reducing the movement of the infrared emitter 3 after being installed in the infrared emitter placement groove 403, thereby improving the stability of the infrared emitter 3 relative to the light incident surface 401.

[0106] In another embodiment, all surfaces of the optical device 4 except the light incident surface 401 and the light emitting surface 402 are light shielding surfaces.

[0107] Since the optical device 4 is used to transmit the infrared light emitted by the infrared emitter 3 from the light incident surface to the light exit surface, in order to prevent the infrared light entering from the light incident surface from being emitted from other positions, thereby affecting the quality of the infrared light, all surfaces except the light incident surface 401 and the light exit surface 402 are shading surfaces, and the shading surfaces can be black surfaces, thereby reducing the amount of infrared light emitted from surfaces other than the light incident surface 401 and the light exit surface 402.

[0108] In another embodiment, the optical device 4 is an optical silicone device. In addition to its light-guiding function, the optical silicone device has a lower hardness than commonly used polymethylmethacrylate (PMMA) or polyurethane (PA). Therefore, the hardness of the optical device formed by optical silicone is lower than that of PMMA or PA. When the mobile terminal falls, the optical device can absorb a certain amount of impact force and deform to a certain extent, making it less likely to break, thereby reducing the occurrence of damage to the optical device and increasing its service life. After being deformed by force, the optical device can also return to its original shape, thereby reducing the impact on infrared light transmission.

[0109] In another embodiment, reference Figure 7 , is a schematic diagram of the structure of another mobile terminal, the mobile terminal also includes:

[0110] The protective lens 9 is located on the side of the light-emitting surface 402 of the optical device 4 and is stacked with the light-emitting surface of the optical device 4. The area of ​​the protective lens 9 is at least not less than the area of ​​the light-emitting surface 402. For example, the two areas can be equal, or the area of ​​the protective lens 9 can be larger than the area of ​​the light-emitting surface 402. The surface of the protective lens 9 facing away from the optical device 4 is flush with the outer surface of the frame 1. The protective lens 9 does not affect the transmission of infrared light emitted from the light-emitting surface.

[0111] The protective lens adhesive 10 is located between the frame 1 and the protective lens 9 and is used to fix the protective lens 9 on the frame 1. The protective lens adhesive 10 can be a device such as a tape that can adhere and fix the protective lens 9.

[0112] After the optical device 4 is positioned within the middle frame 2 and the frame 1, the light-emitting surface 402 of the optical device 4 faces the outside of the frame 1, i.e., the exterior of the mobile terminal. A protective lens 9 is positioned adjacent to the light-emitting surface 401 of the optical device 4. After light from the optical device 4 exits the light-emitting surface 401, it passes through the protective lens 9 and is transmitted to the exterior of the mobile terminal. The protective lens 9 is secured to the frame 1 via a protective lens adhesive 10. The protective lens 9 is layered over the light-emitting surface of the optical device 4. For example, if the protective lens 9 completely covers the light-emitting surface of the optical device 4, this reduces the impact of the protective lens 9 on infrared light. The side of the protective lens 9 facing away from the optical device 4 is flush with the exterior surface of the frame 1. Once installed on the frame 1, the protective lens 9 minimizes the impact on the appearance of the mobile terminal, thereby enhancing the user experience. Because the protective lens 9 is positioned outside the light-emitting surface 401 of the optical device 4, it protects the light-emitting surface 401 of the optical device 4, minimizing any impact on the optical device 4, such as preventing collapse or bulging of the light-emitting surface 401. Any component that can protect the optical device 4 can be used as the protective lens.

[0113] In another embodiment, the first end of the first opening 101 is the end of the first opening 101 located outside the frame 1, and the second end of the first opening 101 is the end where the first opening 101 is connected to the second opening 201; the opening of the first end of the first opening 101 is smaller than the opening of the second end of the first opening 101.

[0114] The first end of the first opening 101 faces the outside of the frame 1, i.e. the outside of the mobile terminal, and the second end of the first opening 101 faces the inside of the frame 1 and is connected to the second opening 201. The opening of the first end of the first opening 101 is smaller than the opening of the second end of the first opening 101, so that the occurrence of the case where the optical device 4 moves to the outside of the frame 1 after the optical device 4 is located in the first opening 101 is prevented.

[0115] The cross-sectional area of the part of the optical device 4 located in the first opening 101 is larger than the cross-sectional area of the part of the optical device 4 located in the second opening 201. That is, the cross-sectional area of the part of the optical device 4 close to the infrared emitter 3 is small, and the cross-sectional area of the part of the optical device 4 located in the first opening 101 is large. Since the first opening 101 is located on the frame 1, the infrared light is irradiated to the outside of the mobile terminal after passing through the part of the optical device 4 located in the first opening 101. Therefore, the light emission amount can be increased, and the light emission requirement can be met.

[0116] The specific shape of the optical device 4 can be linear, or can be a bending shape with corners, etc. The shape of the optical device 4 matches the first opening 101 and the second opening 201, as long as the infrared light can be irradiated from the first opening 101 to the side of the frame 1 away from the middle frame 2.

[0117] When the optical device 4 is located in the first opening 101 and the second opening 201, the outer surface of the optical device 4 is in contact with the inner surface of the first opening 101 and the second opening 201. In this way, the stability of the optical device 4 relative to the frame 1 and the middle frame 2 can be improved, and the movement of the optical device 4 can be reduced, thereby reducing the influence on the conduction effect of the infrared light.

[0118] In another embodiment, with reference to Figure 7 and Figure 8 the mobile terminal further comprises:

[0119] The infrared emitter connecting line 11 is connected to the infrared emitter 3, and is used to transmit an electrical signal for controlling the infrared emitter. The infrared emitter connecting line 11 can be a flexible printed circuit board (FPC) or the like.

[0120] The infrared emitter fixing member 12 fixes the infrared emitter connecting line 11 and the infrared emitter 3. Part of the infrared emitter fixing member 12 is located between the infrared emitter 3 and the optical device 4, and part of the infrared emitter fixing member 12 is located between the infrared emitter connecting line 11 and the middle frame 2.

[0121] The infrared emitter connecting wire 11 can be fixed by the infrared emitter fixing member 12, and the infrared emitter 3 can also be fixed. Of course, the fixing member of the infrared emitter connecting wire 11 and the fixing member of the infrared emitter 3 can be separated, each corresponding to a fixing member, such as a corresponding adhesive. Figure 7 Only the fixing member 12 of the infrared emitter connecting line 11 is shown.

[0122] In one embodiment, reference Figure 12 , is a structural diagram of a speaker's sound channel. Normally, the sound output direction of the speaker A is toward the display screen F (in order to Figure 7 and Figure 8 The display screen of this embodiment is distinguished by the number of the display screen in FIG. Figure 7 and Figure 8 The first sound channel S1 of the speaker A is located on the frame G, and the second sound channel S2 is between the display screen F and the middle piece H near the frame. (The speaker of this embodiment is different from Figures 1 to 4 The middle piece H is located between the display screen F and the frame G. The intersection of the display screen F and the middle piece H is fixed to the middle piece H using screen adhesive. A portion of the edge of the display screen F is located within the sound channel S2 formed by the display screen F and the middle piece H near the frame.

[0123] Ginseng Figure 13 ,for Figure 12 The corresponding cross-sectional structural diagram shows that L1 is the width of the second sound output channel S2, L2 is the width of the black border of the display screen, L3 is the width of the adhesive, and L4 is the width of the display area of ​​the middle piece H that avoids the display screen F. Due to the existence of L1, the area occupied by the display screen F will be affected by L. The width of L1 is indicated as 0.6 mm. In this case, there is a gap between the display screen F and the middle piece H. Impurities such as dust, hair or other small foreign matter can easily enter the gap, thereby affecting the transmission of sound. Since the display F and the middle piece H need to be bonded together with the screen adhesive, and the second sound output channel S2 is connected to the location of the screen adhesive, the screen adhesive can easily overflow into the second sound output channel S2, thereby affecting normal pronunciation. Reference Figure 14 , for Figure 13 The corresponding main view.

[0124] refer to Figure 7 In another embodiment, the mobile terminal further includes:

[0125] Middleware 13 includes a first portion 1301 and a second portion 1302 connected to each other. First portion 1301 of middleware 13 is located at least between display screen 6 and middle frame 2. A first sound transmission channel 1303 is provided between first portion 1301 of middleware 13 and middle frame 2. First sound transmission channel 1303 communicates with first sound cavity 7. Middleware 13 is located at the top of the mobile terminal and is located between display screen 6 and bezel 1, and between display screen 6 and middle frame 2. It at least has a channel for transmitting sound emitted by the speaker to the outside.

[0126] There is a first sound transmission channel 1303 connected to the first sound cavity 7 between the first part 1301 of the middleware 13 and the middle frame 2. After the speaker 5 makes a sound, it is transmitted outward through the first sound cavity 7. After the first sound transmission channel 1303 is connected with the first sound cavity 7, the first sound transmission channel 1303 can transmit the sound in the first sound cavity 7 to the outside of the mobile terminal.

[0127] The second portion 1302 of the middle piece 13 is located between the display screen 6 and the frame 1. The second portion 1302 of the middle piece 13 includes a second sound transmission channel 1304. The second sound transmission channel 1304 communicates with the first sound transmission channel 1303. The end of the second sound transmission channel 1304, which is remote from the first sound transmission channel 1303, is exposed outside the second portion 1304 of the middle piece 13. The area of ​​the display screen 6 near the middle piece 13 is separated from the second sound transmission channel 1304 by the second portion 1304 of the middle piece 13.

[0128] The second part 1302 of the middleware 13 is at least located between the display screen 6 and the frame 1. After the sound is transmitted to the first sound transmission channel 1303, the second sound transmission channel 1304 is connected to the first sound transmission channel 1303, so the sound can continue to be transmitted outward through the second sound transmission channel 1304, thereby transmitting the sound outside the mobile terminal.

[0129] In this embodiment, the second sound transmission channel 1304 is separated from the display screen 6. That is, the second sound transmission channel 1304 and the display screen 6 do not intersect, and the area of ​​the display screen 6 near the middle piece 13 is not within the second sound transmission channel 1304. The area of ​​the display screen 6 near the middle piece 13 is separated by the second portion 1304 of the middle piece 13. Since other portions of the second portion 1304 of the middle piece 13 are located between the second sound transmission channel 1304 and the display screen 6, when the display screen 6 is bonded and fixed to the middle piece 13 using an adhesive such as adhesive glue, the possibility of the adhesive such as adhesive glue entering the second sound transmission channel 1304 is reduced, thereby reducing the possibility of the adhesive glue such as adhesive glue affecting the sound quality.

[0130] Meanwhile, the width of the gap between the display screen 6 and the intermediate piece 13 is reduced, the second sound transmission channel 1304 is located on the intermediate piece 13, and is isolated from the display screen 6 by other parts of the second part 1304 of the intermediate piece 13 between the display screen 6 and the second sound transmission channel 1304. In this case, the display screen 6 is in contact with the second part 1304 of the intermediate piece 13, and the gap between the display screen 6 and the second part 1304 of the intermediate piece 13 is less than Figure 10 L1 in FIG. 1, thereby reducing the occurrence of foreign matter entering the second sound transmission channel 1304 and reducing the impact on the sound output. In addition, the appearance effect is also improved, thereby improving the user's experience.

[0131] In another aspect, since the second sound transmission channel 1304 is closer to the frame 1 than the first sound transmission channel 1303, the second sound transmission channel 1304 is closer to the frame 1 than the first sound transmission channel 1303. Figure 13 As shown in FIG. 1, the sound output channel S2 is based on the direction of the frame 1, and the width L1 originally occupied by the sound output channel S2 can provide space for the display screen 6, so the display screen 6 can move L1 in the direction of the frame 1, and the display area of the display screen 6 can be uniformly lengthened L1 in the direction of the frame 1, thereby increasing the screen ratio and improving the display effect of the screen.

[0132] Referring to Figure 7 In another embodiment, the mobile terminal further comprises:

[0133] The dust screen 14 is located between the first sound transmission channel 1303 and the second sound transmission channel 1034.

[0134] The dust screen fixing member 15 is located between the dust screen 14 and the intermediate piece 13, and is used to fix the dust screen 14 on the intermediate piece 13.

[0135] The dust screen 14 can block impurities from the outside from entering the first sound transmission channel 1303, thereby affecting the sound output quality. Since the first sound transmission channel 1303 is closer to the inside of the mobile terminal than the second sound transmission channel 1034, after reducing the impurities entering the first sound transmission channel 1303, the difficulty of cleaning the first sound transmission channel 1303 can be further reduced.

[0136] In another embodiment, referring to Figure 8 The intermediate piece 13 further comprises an adhesive site 1035 for placing an intermediate piece adhesive such as an adhesive for fixing the intermediate piece 13 and the middle frame 2.

[0137] Referring to Figure 15, which is a partial schematic diagram of a mobile terminal. The middle frame 2 also has a first bonding surface 16 for the infrared emitter connection line 11. This first bonding surface 16 is located on the middle frame 2 at a position corresponding to the infrared emitter connection line 11. The infrared emitter connection line 11 is bonded to the middle frame 2 at first bonding surface 16 and is connected to the infrared emitter 3.

[0138] The middle frame 2 also has a second bonding surface 17 for the infrared emitter fixing part 12. The second bonding surface 17 is located at a position on the middle frame 2 corresponding to the infrared emitter fixing part 12. The infrared emitter fixing part 12 is respectively bonded to the middle frame 2 and the infrared emitter connecting line 11 at the second bonding surface 17.

[0139] The middle frame 2 also has a third bonding surface 18 for the first sound cavity sealing foam 8, located on the middle frame 2 at a position corresponding to the first sound cavity sealing foam 8. The first sound cavity sealing foam 8 seals the speaker 5 to the middle frame 2 at the third bonding surface 18, thereby sealing the first sound cavity 7.

[0140] After the optical device 4 is fixed in the middle frame 2 and the frame 1 , the opening of the infrared emitter placement groove 403 in the optical device 4 faces the side facing the first surface of the middle frame, that is, the same side as the first surface.

[0141] refer to Figure 16 , is another partial schematic diagram of a mobile terminal.

[0142] Combine Figure 7 , the positions of the second sound transmission channel 1304 and the first sound cavity 7 can be determined. The middle frame 2 also has a fixed fitting surface 19 of the middle piece 13. The middle piece 13 can be fixed to the middle frame 2 through the fixed fitting surface 19. For example, the middle piece 13 can be fixed to the middle frame 2 at the fixed fitting surface 19 by fixing glue.

[0143] See also Figure 17 , is a main view of a mobile terminal, the main view of the mobile terminal after the frame 1, the display screen 6 and the middleware 13 are assembled together is Figure 17 As shown, the middle piece 13 also has a sound hole 1305, combined with Figure 7 The sound outlet 1305 is an opening of the second sound transmission channel 1304 located on the surface of the middle piece 13. The sound transmitted through the second sound transmission channel 1304 is transmitted to the outside of the mobile terminal through the sound outlet 1305. The number of the sound outlet 1305 is not limited.

[0144] refer to Figure 18 , is a structural diagram of another mobile terminal. Figure 1 The structure shown, Figure 18 The structure shown includes Figure 1 The structure shown, Figure 18The frame 1, middle frame 2, infrared emitter 3 and optical device 4 shown in FIG are Figure 1 The structure shown. Figure 18 In the structure shown, the second sound transmission channel 1304 is connected to Figure 7 The structure of the second sound transmission channel 1304 is different. Figure 18 In the embodiment, the end of the display screen 6 close to the frame 1 is located in the second sound transmission channel 1304. This embodiment improves the frame 1, the middle frame 2, the infrared emitter 3 and the optical device 4 separately. Figure 7 The illustrated structure can reduce the need for improvements to the sound transmission path. Without modifying the sound transmission path, improvements can be made to the frame 1, middle frame 2, infrared emitter 3, and optical device 4. The frame 1 has a first opening 101, and the middle frame 2 has a second opening 201. The first opening 101 and the second opening 201 are connected. A portion of the optical device 4 is positioned within the frame 1, another portion of the optical device 4 is positioned within the middle frame 2, and the infrared emitter 3 is positioned within the middle frame 2. Infrared light transmitted by the optical device 4 can be directed from the first opening 101 toward the side of the frame 1 away from the middle frame 2. This achieves infrared functionality while also reducing the internal space occupied by the mobile terminal.

[0145] refer to Figure 19 , which is a structural diagram of another mobile terminal. Figure 19 The structure shown is a schematic diagram of improving the sound transmission channel alone. For detailed instructions, please refer to Figure 7 .

[0146] In this embodiment, Figure 13 Based on the above, the sound transmission channel has been improved. The middleware 13 includes a first portion 1301 and a second portion 1302 connected to each other. The first portion 1301 of the middleware 13 is located at least between the display screen 6 and the middle frame 2. A first sound transmission channel 1303 is defined between the first portion 1301 of the middleware 13 and the middle frame 2. The first sound transmission channel 1303 is connected to the first sound cavity 7.

[0147] The second portion 1302 of the middle piece 13 is located between the display screen 6 and the frame 1. The second portion 1302 of the middle piece 13 has a second sound transmission channel 1304, which is connected to the first sound transmission channel 1303. The end of the second sound transmission channel 1304, which is away from the first sound transmission channel 1303, is exposed on the second portion 1304 of the middle piece 13. The area of ​​the display screen 6 near the middle piece 13 is separated from the second sound transmission channel 1304 by the second portion 1304 of the middle piece 13.

[0148] The second part 1302 of the middleware 13 is at least located between the display screen 6 and the frame 1. After the sound is transmitted to the first sound transmission channel 1303, the second sound transmission channel 1304 is connected to the first sound transmission channel 1303, so the sound can continue to be transmitted outward through the second sound transmission channel 1304, thereby transmitting the sound outside the mobile terminal.

[0149] There are other parts of the second part 1304 of the middle piece 13 between the second sound transmission channel 1304 and the display screen 6. Therefore, when the display screen 6 and the middle piece 13 are bonded and fixed by adhesives such as adhesives, the possibility of adhesives such as adhesives entering the second sound transmission channel 1304 can be reduced, thereby reducing the occurrence of situations that affect the sound quality.

[0150] At the same time, the width of the gap between the display screen 6 and the middle member 13 is reduced, and the second sound transmission channel 1304 is located on the middle member 13 and is isolated from the display screen 6 by the other part of the second part 1304 of the middle member 13 located between the display screen 6 and the second sound transmission channel 1304. In this case, the display screen 6 is in contact with the second part 1304 of the middle member 13, and the gap between the display screen 6 and the second part 1304 of the middle member 13 is smaller than Figure 10 L1 in the second sound transmission channel 1304 is reduced, thereby reducing the occurrence of foreign matter entering the second sound transmission channel 1304 and reducing the impact on the sound output. In addition, the appearance effect is improved, thereby improving the user experience.

[0151] On the other hand, since the second sound transmission channel 1304 is Figure 13 The sound output channel S2 shown is closer to the frame 1. The width L1 originally occupied by the sound output channel S2 can provide space for the display screen 6, so the display screen 6 can be moved a distance of L1 in the direction of the frame 1. The display area of ​​the display screen 6 can be uniformly lengthened a distance of L1 in the direction of the frame 1, thereby increasing the screen-to-body ratio and improving the display effect of the screen.

[0152] In another embodiment, a mobile terminal is provided.

[0153] refer to Figures 6 to 11 ,as well as Figures 15 to 17The mobile terminal includes a middle frame, a frame, a display, a middle piece (also known as a screen decoration), a speaker (speaker), an optical device (including an infrared light guide), a first sound cavity sealing foam (the first sound cavity can also be called a front sound cavity), an infrared emitter cable (including an infrared FPC), an infrared emitter, an infrared emitter cable fixing (including an infrared FPC adhesive), a dust screen, a dust screen fixing (including a dust screen adhesive), a protective lens adhesive (including an infrared lens adhesive), and a protective lens (including an infrared lens). The middle frame is designed with a front speaker sound cavity, an infrared emitter placement groove, a front speaker sound cavity bonding surface, an infrared FPC adhesive bonding surface, an infrared FPC bonding surface, an infrared emitter placement groove, and a middle piece bonding surface; the screen decoration is designed with a decorative part glue point surface, a first sound transmission channel, a second sound transmission channel, a sound outlet, and a dust screen groove. The optical device includes an infrared light guide column, which is made of black transparent optical silicone material. The infrared light guide column is designed with an infrared emitter placement groove to facilitate the positioning of the infrared device. Except for the light-emitting surface and the light-incoming surface, the rest of the infrared light guide column is all light-shielding surface. For example, if the surface is black, the rest of the surface can be processed into black by spraying black to prevent light crosstalk and light leakage.

[0154] The embodiments of the present application have the following features:

[0155] (1) Taking advantage of the structural characteristics of the speaker cavity, the infrared component is designed in the area covered by the speaker on the middle frame. That is, the optical device is located at the end of the second through hole away from the first through hole, and has an infrared emitter placement groove. The end of the second through hole away from the first through hole is located in the area covered by the speaker. The infrared light guide column is secondary injection molded in the openings of the middle frame and the frame. The infrared device is installed in the external emitter placement groove. Then, the infrared seal is isolated with infrared sealing adhesive, thereby reducing the size of the other space occupied by the middle frame and the frame, saving space in the terminal head, and leaving more space for placing more other devices.

[0156] (2) Using a secondary injection molding process, the infrared light guide column is injection molded into the infrared light guide column hole on the middle frame (the first opening and the second opening include the infrared light guide column hole), and the infrared emitting device is positioned and assembled in the infrared light guide column using the infrared emitter placement groove on the infrared light guide column. The infrared light guide column and the infrared emitter are directly assembled together to reduce the assembly tolerance, so that the center of the infrared light guide column and the center of the infrared emitter coincide with each other to 100%, which can greatly improve the functional effect of the front infrared device. At the same time, because the infrared light guide column and the infrared emitter are assembled together and secondary injection molded on the middle frame, the infrared light guide column and the infrared emitter will not move or loosen when the terminal falls.

[0157] (3) Optical devices, namely, the infrared light guide column is made of optical silicone material with low hardness. The infrared emitter is directly matched with the infrared light guide column, which reduces the avoidance space between the infrared light guide column and the infrared emitter. In addition, the infrared emitter is connected to the motherboard via an infrared FPC, which greatly saves the space for the motherboard's ornaments. At the same time, the size of the infrared light guide column can be greatly reduced, saving more structural space. When the terminal falls or collides, the infrared light guide column can absorb the impact deformation and will not deform or crack, which will not affect the infrared function.

[0158] (4) A protective lens, namely an infrared lens, is designed at the light-emitting surface of the infrared light guide. The area of ​​the infrared lens (including the window) is not less than the area of ​​the light-emitting surface of the infrared light guide. The infrared lens covers the light-emitting surface, reducing the possibility of the light-emitting surface of the infrared light guide collapsing or convexing due to squeezing or collision. The infrared lens is flush with the outer surface of the frame and has the same color as the outer surface of the middle frame, creating a very good integrated appearance.

[0159] (5) The display screen is assembled on the screen decorative part by glue dispensing. The sound outlet is located on the screen decorative part, and the sound outlet is separated from the display screen by other parts of the screen decorative part. Compared with the traditional solution, the glue dispensing for fixing the display screen and the screen decorative part does not pass through the sound outlet channel, so the glue will not overflow into the sound outlet channel and will not affect the transmission of the speaker sound, thereby reducing the impact on the sound quality.

[0160] (6) Since the sound outlet and the display screen are separated by other parts of the screen decoration, there is no Figure 13 L1 and Figure 14 The large notch shown in S2 in the middle reduces the possibility of foreign matter such as dust and hair entering the sound holes and sound channels, thereby reducing the impact on sound output. At the same time, the appearance of the integrated effect is very good, greatly improving the user's visual experience.

[0161] On another level, after reducing the width of L1 and S2, space is left for the display area of ​​the display, which can reduce the width of the black border and thus increase the screen-to-body ratio.

[0162] refer to Figure 18 The infrared is designed in the front sound cavity of the speaker, and the speaker sound channel adopts the commonly used design scheme, that is, the speaker sound channel is designed in the gap between the screen and the screen decoration. This scheme has the effects of (1) to (4) above.

[0163] refer to Figure 19 The speaker sound channel is designed on the screen decoration part, which can narrow the width of the black edge of the screen. The infrared structure adopts the common solution, that is, the infrared is designed separately, and it occupies the space of the main board, which will occupy the structural space of the terminal head. This solution has the effect of (5) above.

[0164] Figure 20 This is a block diagram of a terminal device according to an exemplary embodiment. For example, the terminal device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0165] Reference Figure 20 The terminal device may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0166] The processing component 802 generally controls the overall operation of the terminal device, such as operations associated with presentations, phone calls, data communications, camera operation, and recording. The processing component 802 may include one or more processors 820 to execute instructions. Furthermore, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0167] The memory 804 is configured to store various types of data to support operations on the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0168] The power component 806 provides power to various components of the terminal device. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal device.

[0169] The multimedia component 808 includes a screen that provides an output interface between the terminal device and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal device is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0170] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the terminal device is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0171] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0172] The sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of the terminal device. For example, the sensor assembly 814 can detect the open / closed state of the terminal device, the relative positioning of components, such as the display and keypad of the terminal device. The sensor assembly 814 can also detect changes in the position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the orientation or acceleration / deceleration of the terminal device, and temperature changes of the terminal device. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0173] The communication component 816 is configured to facilitate wired or wireless communication between the terminal device and other devices. The terminal device can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0174] In an exemplary embodiment, the terminal device may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above method.

[0175] It should be noted that the “first” and “second” in the embodiments of the present disclosure are only for the convenience of expression and distinction and have no other specific meanings.

[0176] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0177] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A mobile terminal, characterized in that: include: A frame having a first opening; the first opening does not penetrate the frame, and an opening of the first opening faces the outside of the frame; a middle frame, located inside the frame, the middle frame having a second opening, the second opening being connected to the first opening through a side of the first opening; an infrared emitter, located in the second opening; An optical device, one portion of which is located in the first opening and the other portion of which is located in the second opening, is used to transmit the infrared light emitted by the infrared emitter to the outside of the mobile terminal; wherein the infrared light transmitted by the optical device can be irradiated from the first opening to the side of the frame away from the middle frame.

2. The mobile terminal according to claim 1, wherein: Based on the emission direction of the infrared light, the first opening and the second opening are staggered with each other; The first side of the first opening is connected to an end of the second opening close to the first opening; wherein the first side of the first opening is the side close to the second opening.

3. The mobile terminal according to claim 1 or 2, characterized in that: The first opening and the second opening are both blind holes or slots, and the opening of the first opening faces the outside of the frame.

4. The mobile terminal according to claim 1, wherein: The mobile terminal further includes: a speaker, located on the first surface of the middle frame; a display screen, located on a second surface of the middle frame; the second surface is opposite to the first surface; The middle frame also has: a third opening; the third opening is located between the speaker and the display screen, and the speaker covers the opening of the third opening; wherein the inner wall of the third opening, the diaphragm of the speaker and the display screen form a first sound cavity of the speaker.

5. The mobile terminal according to claim 4, wherein: The opening of the third opening is smaller than the maximum cross-sectional area of ​​the diaphragm of the speaker; One end of the second opening away from the first opening is located on the first surface.

6. The mobile terminal according to claim 4, wherein: The mobile terminal further includes: a middleware, the middleware including a first part and a second part connected to each other; The first portion of the middle piece is at least located between the display screen and the middle frame, and a first sound transmission channel is provided between the first portion of the middle piece and the middle frame, the first sound transmission channel being in communication with the first sound cavity; The second part of the middle piece is located between the display screen and the frame, and the second part of the middle piece has: a second sound transmission channel, the second sound transmission channel is connected to the first sound transmission channel, and one end of the second sound transmission channel away from the first sound transmission channel is exposed to the second part of the middle piece; wherein, the area of ​​the display screen close to the middle piece is separated from the second sound transmission channel by the second part of the middle piece.

7. The mobile terminal according to claim 6, wherein: The mobile terminal further includes: a dustproof net, located between the first sound transmission channel and the second sound transmission channel; The dustproof net fixing piece is located between the dustproof net and the middle piece and is used to fix the dustproof net on the middle piece.

8. The mobile terminal according to claim 1, wherein: The optical device at least has: a light incident surface and a light emitting surface; The light incident surface faces the emitting surface of the infrared emitter; The light emitting surface is located on the side where the outer surface of the frame is located.

9. The mobile terminal according to claim 8, wherein: The optical device further comprises: The infrared emitter placement groove is located at an end of the second opening away from the first opening, and the infrared emitter is installed in the infrared emitter placement groove; wherein, the side of the infrared emitter placement groove facing the emitting surface of the infrared emitter serves as the light incident surface.

10. The mobile terminal according to claim 8, wherein: All surfaces of the optical device except the light incident surface and the light emitting surface are light shielding surfaces. The mobile terminal according to claim 1 , wherein: The optical device is an optical silicone device.

12. The mobile terminal according to claim 1, wherein: The mobile terminal further includes: a protective lens located on one side of the light-emitting surface of the optical device, and the protective lens is stacked with the light-emitting surface of the optical device, and the area of ​​the protective lens is not less than the area of ​​the light-emitting surface; wherein a surface of the protective lens away from the optical device is flush with the outer surface of the frame; The protective lens adhesive is located between the frame and the protective lens and is used to fix the protective lens on the frame.

13. The mobile terminal according to claim 1, wherein: The cross-sectional area of ​​a portion of the optical device located in the first opening is greater than the cross-sectional area of ​​a portion of the optical device located in the second opening; When the optical device is located in the first opening and the second opening, the outer surface of the optical device is in contact with the inner surfaces of the first opening and the second opening.

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