Terminal

Abstract

The present disclosure relates to a terminal, the terminal includes a middle frame (1), a screen decorative member (2), a screen assembly (6), a speaker (3) and a sensor member (4). The screen assembly (6) is mounted on the middle frame (2) through the screen decorative member (2). The middle frame (1) has a speaker installation area (101) for installing the speaker (3). The screen decorative member (2) has a covering portion (202) extending to the speaker installation area (101) to form a front sound cavity (301) with the speaker (3). The sensor member (4) is arranged in the front sound cavity (301). Through the above technical solution, the terminal provided by the present disclosure can save a large amount of structural space.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and more particularly, to a terminal. Background Art

[0002] Generally, the thinner and lighter a terminal is, the more popular it is among users. However, with the application of 5G technology in terminals, the number of components on the terminal main board has increased significantly, and the placement space and structural space of the main board are increasingly restricted.

[0003] In a terminal, in order to improve the user experience, usually a speaker is provided at each of the upper and lower parts of the terminal to achieve a stereo effect. In principle, the speaker requires a front sound cavity and a rear sound cavity to be designed. Among them, the factor directly affecting the volume and sound effect of the speaker is the volume of the front sound cavity. The larger the volume of the front sound cavity, the louder the volume and the better the sound effect. Since there are also multiple functional components such as a light sensor component, a distance sensor component, a receiver, and a flash on the upper part of the terminal, and the application of 5G technology and the development of full-screen will limit the structural space and main board space of the terminal, it is difficult to squeeze out space to arrange two speakers and the distance sensor component, and the front sound cavity of the speaker cannot be made large either. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a terminal that can save a large amount of structural space.

[0005] To achieve the above purpose, the present disclosure provides a terminal, which includes a middle frame, a screen decorative member, a screen assembly, a speaker, and a sensor component. The screen assembly is mounted on the middle frame through the screen decorative member. The middle frame has a speaker installation area for installing the speaker. The screen decorative member has a covering portion extending to the speaker installation area to form a front sound cavity with the speaker, and the sensor component is arranged in the front sound cavity.

[0006] Optionally, the middle frame includes a main body and a mounting bracket connected to the main body. The mounting bracket extends from the main body to the front sound cavity, and the sensor component is mounted on the mounting bracket.

[0007] Optionally, a first through hole is provided on the mounting bracket. The sensor component includes a sensing element and a circuit board. The sensing element is received and fixed in the first through hole, and the circuit board is attached to the mounting bracket and closes the first through hole.

[0008] Optionally, the sensor component is a distance sensor component.

[0009] Optionally, the terminal further includes a light guide member and a screen assembly. The light guide member is connected to the mounting bracket and includes an outgoing light column and an incoming light column extending in the same direction. The outgoing light column and the incoming light column are inclined and extend toward the edge of the screen assembly to respectively guide the light emitted by the sensor member and the light received by the sensor member.

[0010] Optionally, the screen assembly includes a screen LCD and a screen cover plate covering the screen LCD. The screen cover plate has a screen edge portion exposed from the outer periphery of the screen LCD. An outgoing light hole and an incoming light hole are provided on the screen edge portion. The outgoing light hole and the incoming light hole are arranged away from the screen LCD. The outgoing light column and the incoming light column respectively pass through the screen decorative member and extend into the outgoing light hole and the incoming light hole correspondingly, and the outgoing light surface of the outgoing light column and the incoming light surface of the incoming light column are flush with the surface of the screen cover plate.

[0011] Optionally, a fixing groove is provided at the end of the light guide member facing the mounting bracket. The fixing groove is provided with an outgoing light groove and an incoming light groove corresponding to the outgoing light column and the incoming light column respectively. The sensor member is fixed in the fixing groove, and the outgoing light port and the incoming light port of the sensor member are respectively located in the outgoing light groove and the incoming light groove.

[0012] Optionally, the light guide member further includes a light shielding bracket formed between the outgoing light column and the incoming light column to separate the outgoing light column and the incoming light column.

[0013] Optionally, a silver coating is provided on the outer peripheral surface of the outgoing light column, and / or a silver coating is provided on the outer peripheral surface of the incoming light column.

[0014] Optionally, the middle frame is provided with a front sound cavity groove and a speaker sound outlet channel communicating with the front sound cavity groove. The front sound cavity groove is formed on the inner wall of the middle frame and recessed toward the outer wall direction. The notch of the front sound cavity groove communicates with the front sound cavity, and the speaker sound outlet channel penetrates the middle frame to communicate with the external environment.

[0015] Through the above technical solutions, the terminal provided by the present disclosure is provided with a speaker installation area for installing a speaker on the middle frame, and the speaker installation area is covered by the covering portion of the screen decorative member. Thus, a space is formed between the screen decorative member and the speaker to be used as the front sound cavity of the speaker. On this basis, by utilizing the structural characteristics of the front sound cavity and arranging the sensor member in the front sound cavity, a relatively large structural space can be saved, more space can be vacated for arranging other components, which is beneficial to the application of 5G technology on the terminal and is beneficial to meeting the requirement of the terminal for being thin and light.

[0016] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0018] Figure 1 is a partial three-dimensional exploded view of the terminal provided by an embodiment of the present disclosure;

[0019] Figure 2 is a partial cross-sectional view of the terminal provided by an embodiment of the present disclosure, in which the sound-emitting channel of the speaker is shown to be opened on the middle frame;

[0020] Figure 3 is another partial cross-sectional view of the terminal provided by an embodiment of the present disclosure, in which the sensor device is shown to be arranged in the front sound cavity;

[0021] Figure 4 is a structural schematic diagram of the terminal provided by an embodiment of the present disclosure, in which the light-emitting hole and the light-incident hole are shown;

[0022] Figure 5 is a three-dimensional structural schematic diagram of the middle frame in the terminal provided by an embodiment of the present disclosure, in which the speaker installation area and the mounting bracket are shown;

[0023] Figure 6 is a three-dimensional structural schematic diagram of the light guide member in the terminal provided by an embodiment of the present disclosure;

[0024] Figure 7 is another three-dimensional structural schematic diagram of the light guide member in the terminal provided by an embodiment of the present disclosure, in which the light-shielding bracket is shown.

[0025] Description of Reference Numerals

[0026] 1 - Middle frame; 101 - Speaker installation area; 102 - First through hole; 103 - Front sound cavity groove; 104 - Speaker sound-emitting channel; 105 - Blind hole; 106 - Mounting bracket; 2 - Screen decorative member; 201 - Second through hole; 202 - Covering portion; 3 - Speaker; 301 - Front sound cavity; 302 - Rear sound cavity; 4 - Sensor device; 401 - Sensing element; 402 - Circuit board; 403 - Circuit board back glue; 5 - Light guide member; 501 - Fixed groove; 502 - Light-emitting column; 503 - Light-incident column; 504 - Light-emitting groove; 505 - Light-incident groove; 506 - Light-emitting surface; 507 - Light-incident surface; 508 - Light-shielding bracket; 6 - Screen assembly; 601 - Screen cover plate; 6011 - Screen edge portion; 602 - Screen LCD; 603 - Light-emitting hole; 604 - Light-incident hole; 7 - Speaker dust-proof net; 701 - Dust-proof net back glue; 8 - Speaker encapsulation box; 9 - Sealing cotton ring; 901 - Sealing cotton ring back glue. Detailed Description of the Embodiment

[0027] The following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present disclosure, and are not intended to limit the present disclosure.

[0028] In the present disclosure, unless otherwise stated, the orientation terms such as "front" and "rear" are defined based on the terminal. The orientation close to the screen assembly 6 is "front", and the opposite is "rear", corresponding to the lower and upper orientations in the Figures 1 to 3 drawing. In addition, the orientation terms such as "inner" and "outer" are usually "inner" and "outer" relative to the contour of the corresponding component itself. In addition, the terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another element, and do not have sequence and importance. In the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. The above definitions are only for explaining and illustrating the present disclosure, and should not be construed as a limitation on the present disclosure.

[0029] According to the specific embodiment of the present disclosure, as shown in Figures 1 to 7 , a terminal is provided. The terminal includes a middle frame 1, a screen decoration member 2, a screen assembly 6, a speaker 3, and a sensor member 4. The screen assembly 6 is installed on the middle frame 1 through the screen decoration member 2. The middle frame 1 has a speaker installation area 101 for installing the speaker 3. The screen decoration member 2 has a covering portion 202 extending to the speaker installation area 101 to form a front sound cavity 301 with the speaker 3. The sensor member 4 is arranged in the front sound cavity 301.

[0030] Through the above technical solution, the terminal provided by the present disclosure is provided with a speaker installation area 101 for installing the speaker 3 on the middle frame 1, and the covering portion 202 of the screen decoration member 2 covers the speaker installation area 101. Thus, a space is formed between the screen decoration member 2 and the speaker 3 to be used as the front sound cavity 301 of the speaker 3. On this basis, by utilizing the structural characteristics of the front sound cavity 301 and arranging the sensor member 4 in the front sound cavity 301, a relatively large structural space can be saved, more space can be vacated for arranging other components, which is beneficial to the application of 5G technology on the terminal and is beneficial to meeting the requirement of the terminal for being thin and light.

[0031] It should be noted here that the terminal provided in the present disclosure may be a mobile terminal, such as a smart phone, a tablet computer, a notebook computer, etc. In addition, it may also refer to electronic devices such as a computer, a television, etc. The present disclosure does not make specific limitations thereto.

[0032] In an embodiment provided by the present disclosure, as shown in Figure 5As shown in [Figure], the middle frame 1 may include a body and a mounting bracket 106 connected to the body. The mounting bracket 106 extends from the body to the front sound cavity 301, and the sensor device 4 is mounted on the mounting bracket 106, thereby realizing the arrangement of the sensor device 4 in the front sound cavity 301. Among them, the sensor device 4 can be mounted on the mounting bracket 106 in any suitable manner, such as by screws, welding, bonding, etc., and the present disclosure does not make specific limitations on this.

[0033] In this embodiment, with reference to Figure 3 and Figure 5 As shown in [Figure], in order to reduce the thickness dimension of the terminal, a first through hole 102 may be provided on the mounting bracket 106. The sensor device 4 includes a sensing element 401 and a circuit board 402. The sensing element 401 is received and fixed in the first through hole 102. In this way, the space occupied by the sensor device 4 in the thickness of the terminal can be reduced, thereby meeting the requirement of the terminal for being thin and light. Among them, in order not to affect the function of the sensor device 4, the light emitting port and the light receiving port of the sensor device 4 are both arranged towards the screen assembly 6. The circuit board 402 can be adhered to the mounting bracket 106 by, for example, back gluing the circuit board 402 to cover the first through hole 102, so as to close the side of the sensor device 4 facing the speaker 3, thereby avoiding affecting the sound output of the speaker 3. In addition, the sensing element 401 is welded to the circuit board 402 to be electrically connected to the circuit board 402, and the sensing element 401 is received and fixed in the first through hole 102 through the circuit board 402.

[0034] In the specific embodiment provided by the present disclosure, the above-mentioned sensor device 4 may be a distance sensor device, which is used to detect the distance value between the object to be measured and the screen assembly 6. When the distance value reaches a certain value, the screen LCD602 in the screen assembly 6 will go out. When the distance value is greater than a certain value, the screen LCD602 in the screen assembly 6 will light up. In addition, in other embodiments, the above-mentioned sensor device 4 may also be other types of sensors, such as a light sensor device, etc., and the present disclosure does not make specific limitations on this.

[0035] In the specific embodiment provided by the present disclosure, with reference to Figure 3As shown in the figure, the terminal further includes a light guide member 5 and a screen assembly 6. The light guide member 5 is connected to the mounting bracket 106 and includes an outgoing light column 502 and an incoming light column 503 that extend in the same direction. The outgoing light column 502 and the incoming light column 503 are inclined and extend toward the edge of the screen assembly 6. In this way, there is a certain angle between the sensor member 4 and the outgoing light column 502 and the incoming light column 503. Through this inclined setting, the outgoing light column 502 and the incoming light column 503 can be made to extend close to the edge of the screen assembly 6, thereby avoiding increasing the width of the black border of the screen (the same as the following screen edge portion 6011), which is beneficial to improving the screen-to-body ratio of the terminal. Among them, the outgoing light column 502 and the incoming light column 503 are respectively used to guide the light emitted by the sensor member 4 and the light received by the sensor member 4. During operation, the light emitted by the sensor member 4 is guided toward the edge of the screen assembly 6 through the outgoing light column 502 and irradiates the object to be measured through the screen assembly 6. The object to be measured will reflect light, and the reflected light will pass through the screen assembly and be guided to the sensor member 4 through the incoming light column 503.

[0036] In the specific embodiments provided by the present disclosure, with reference to Figures 1 to 4 As shown in the figure, the screen assembly 6 includes a screen LCD 602 and a screen cover plate 601 covering the screen LCD 602. The screen cover plate 601 has a screen edge portion 6011 exposed from the outer periphery of the screen LCD 602. An outgoing light hole 603 and an incoming light hole 604 are provided on the screen edge portion 6011. The outgoing light hole 603 and the incoming light hole 604 are arranged away from the screen LCD 602. In this way, the outgoing light hole 603 and the incoming light hole 604 do not need to be opened on the screen LCD 602, so that the outgoing light hole 603 and the incoming light hole 604 will not be blocked by the screen LCD 602, avoiding affecting the function of the sensor member 4. Among them, the outgoing light column 502 and the incoming light column 503 respectively pass through the screen decoration member 2 and correspondingly extend into the outgoing light hole 603 and the incoming light hole 604. Moreover, the outgoing light surface 506 of the outgoing light column 502 and the incoming light surface 507 of the incoming light column 503 are flush with the surface of the screen cover plate 601. The light emitted by the sensor member 4 directly irradiates the object to be measured after passing through the outgoing light surface 506 of the outgoing light column 502, and the light reflected by the object to be measured is conducted to the sensor member 4 after passing through the incoming light surface 507 of the incoming light column 503. In this way, it can not only not affect the function of the sensor member 4, but also ensure the aesthetics of the terminal. In addition, with reference to Figure 1 As shown in the figure, in order to facilitate the setting of the outgoing light column 502 and the incoming light column 503, the screen decoration member 2 is provided with a second through hole 201 in the covering portion 202 for the outgoing light column 502 and the incoming light column 503 to pass through.

[0037] In the specific embodiments provided by the present disclosure, with reference to Figure 6As shown in the figure, a fixing groove 501 is provided at the end of the light guide member 5 facing the mounting bracket 106. The fixing groove 501 is provided with a light-emitting groove 504 and a light-incident groove 505 corresponding to the light-emitting column 502 and the light-incident column 503 respectively. The sensor member 4 is fixed in the fixing groove 501, and the light-emitting port and the light-incident port of the sensor member 4 are respectively located in the light-emitting groove 504 and the light-incident groove 505. Among them, the light guide member 5 can be made of black transparent optical silica gel material. After the screen assembly 6, the screen decorative member 2 and the middle frame 1 are assembled, the light guide member 5 is formed by injection molding, thereby realizing the fixation of the light guide member 5 and the sensor member 4. In this case, the sensing element 401 of the sensor member 4 is in interference fit in the fixing groove 501. By directly assembling the light guide member 5 and the sensor member 4 together, the assembly tolerance can be reduced, the position consistency of the light guide member 5 and the sensor member 4 can be ensured, and a light-emitting surface 506 and a light-incident surface 507 are designed on the light-emitting column 502 and the light-incident column 503, which can greatly improve the functional effect of the sensor member 4. In addition, when the terminal drops, there will be no movement or looseness between the light guide member 5 and the sensor member 4, thereby ensuring the functional effect of the sensor member 4.

[0038] In one embodiment, light-shielding sleeves can be sleeved on the light-emitting column 502 and the light-incident column 503 respectively, and the light-emitting column 502 and the light-incident column 503 are separated by the light-shielding sleeves, thereby preventing the mutual penetration of the emitted light and the received light between the light-emitting column 502 and the light-incident column 503. In some embodiments, referring to Figure 7 As shown in the figure, the light guide member 5 further includes a light-shielding bracket 508, and the light-shielding bracket 508 is formed between the light-emitting column 502 and the light-incident column 503 to separate the light-emitting column 502 and the light-incident column 503, thereby preventing the mutual penetration of the emitted light and the received light between the light-emitting column 502 and the light-incident column 503. In other embodiments, the light-emitting column 502 and the light-incident column 503 can be separated by the screen decorative member 2. In this case, two second through holes 201 are provided at intervals in the covering portion 202 of the screen decorative member 2, and the light-emitting column 502 and the light-incident column 503 are respectively inserted into their corresponding second through holes 201. In this way, the light-emitting column 502 and the light-incident column 503 can be separated by the screen decorative member 2 to prevent light from penetrating each other. In addition, the light-emitting column 502 and the light-incident column 503 can also be separated by any other suitable method, and the present disclosure does not make specific limitations on this.

[0039] In the specific embodiment provided by the present disclosure, a silver coating is provided on the outer peripheral surface of the light-emitting column 502. Since the sensor member 4 and the light-emitting column 502 are arranged at an angle, the light is reflected by the silver coating, thereby reducing the optical energy loss generated when the light emitted by the sensor member 4 propagates in the light-emitting column 502. Among them, the silver coating can be formed by spraying silver paint on the outer peripheral surface of the light-emitting column 502.

[0040] In the specific embodiments provided by the present disclosure, a silver coating is provided on the outer peripheral surface of the light incident column 503. Since the sensor device 4 and the light incident column 503 are arranged at an angle, the silver coating reflects light, thereby reducing the optical energy loss generated when the light received by the sensor device 4 propagates in the light incident column 503. Among them, the silver coating can be formed by spraying silver paint on the outer peripheral surface of the light incident column 503.

[0041] In some other embodiments, the sensor device 4 can also be installed on the screen decoration member 2. In this case, a light exit hole 603 and a light incident hole 604 can be provided on the screen decoration member 2. The light guide member 5 is connected to the screen decoration member 2. The light exit column 502 and the light incident column 503 of the light guide member 5 are inclined and extend toward the screen decoration member 2. Through this design method, the screen black edge (i.e., the screen edge portion 6011) can be further reduced, and the screen-to-body ratio of the terminal can be improved.

[0042] In the specific embodiments provided by the present disclosure, refer to Figure 2 As shown in, the middle frame 1 can be provided with a front sound cavity groove 103 and a speaker sound outlet channel 104 communicating with the front sound cavity groove 103. The front sound cavity groove 103 is formed on the inner wall of the middle frame 1 and recessed toward the outer wall direction. The notch of the front sound cavity groove 103 communicates with the front sound cavity 301, so as to increase the volume of the front sound cavity 301 through this design method and improve the sound quality and sound effect of the speaker 3. Among them, the speaker sound outlet channel 104 penetrates the middle frame 1 to communicate with the external environment. By designing the speaker sound outlet channel 104 on the middle frame 1, in this way, the glue application surface of the screen assembly 6 will not pass through the speaker sound outlet channel 104, so that the glue will not overflow into the speaker sound outlet channel 104 and will not affect the sound quality of the speaker 3. And, through this design method, there will be no large gap between the screen assembly 6 and the screen decoration member 2, and foreign matters such as dust and hair will not enter the terminal interior and will not affect the sound of the speaker 3. At the same time, the overall appearance effect is very good, greatly improving the visual experience of users.

[0043] Among them, refer to Figure 5 As shown in, the above-mentioned front sound cavity groove 103 can be provided on both sides of the mounting frame 106. In this case, a blind hole 105 can be provided on the middle frame 1 corresponding to the position of the light guide member 5. The blind hole 105 has the same appearance as the speaker sound outlet channel 104, thereby improving the aesthetics of the terminal. In addition, the relative position between the mounting frame 106 and the front sound cavity groove 103 can also be adjusted according to actual needs. For example, the front sound cavity groove 103 can be provided on one side of the mounting frame 106. In this case, the middle frame 1 can be provided with continuously and spaced speaker sound outlet channels 104 without setting the blind hole 105.

[0044] In the specific embodiments provided by the present disclosure, refer to Figure 2As shown in the figure, a speaker dust-proof net 7 is attached to the front sound cavity groove 103 at the speaker sound output channel 104. The speaker dust-proof net 7 can be adhered to the speaker sound output channel 104 through the dust-proof net adhesive 701 to prevent dust from entering the terminal.

[0045] In the specific embodiments provided by the present disclosure, refer to Figure 2 As shown in the figure, the terminal includes a speaker encapsulation box 8, which is fixedly installed in the speaker installation area 101 of the middle frame 1. The speaker encapsulation box 8 includes a box body and an opening provided on the box body. The speaker 3 is installed in the box body to form a rear sound cavity 302 through the box body. Among them, a sealing cotton ring 9 is provided between the speaker encapsulation box 8 and the middle frame 1. The sealing cotton ring 9 is arranged around the opening and adhered to the speaker encapsulation box 8 and the middle frame 1 to seal the front sound cavity 301 and the rear sound cavity 302.

[0046] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0048] Furthermore, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A terminal, characterized in that, The terminal includes a middle frame (1), a screen decoration member (2), a screen assembly (6), a speaker (3), and a sensor member (4). The screen assembly (6) is mounted on the middle frame (2) through the screen decoration member (2). The middle frame (1) has a speaker installation area (101) for installing the speaker (3). The screen decoration member (2) has a covering portion (202) extending to the speaker installation area (101) to form a front sound cavity (301) with the speaker (3). The sensor member (4) is arranged in the front sound cavity (301). Among them, the middle frame (1) includes a main body and a mounting bracket (106) connected to the main body. The mounting bracket (106) extends from the main body to the front sound cavity (301), and the sensor member (4) is mounted on the mounting bracket (106). The terminal further includes a light guide member (5). The light guide member (5) is connected to the mounting bracket (106). And a fixing groove (501) is provided at an end of the light guide member (5) facing the mounting bracket (106), and the sensor member (4) is fixed in the fixing groove (501).

2. The terminal according to claim 1, wherein A first through hole (102) is provided on the mounting bracket (106). The sensor member (4) includes a sensing element (401) and a circuit board (402). The sensing element (401) is received and fixed in the first through hole (102), and the circuit board (402) is attached to the mounting bracket (106) and closes the first through hole (102).

3. The terminal according to claim 1, wherein The sensor member (4) is a distance sensor member.

4. The terminal according to any one of claims 1-3, characterized in that The light guide member (5) includes a light emitting column (502) and a light incident column (503) extending in the same direction. The light emitting column (502) and the light incident column (503) are inclined and extend toward the edge of the screen assembly (6) to respectively guide the light emitted by the sensor member (4) and the light received by the sensor member (4).

5. The terminal according to claim 4, wherein The screen assembly (6) includes a screen LCD (10) and a screen cover plate (601) covering the screen LCD (10). The screen cover plate (601) has a screen edge portion (6011) exposed from the outer periphery of the screen LCD (10). An outgoing light hole (603) and an incoming light hole (604) are provided on the screen edge portion (6011). The outgoing light hole (603) and the incoming light hole (604) are arranged away from the screen LCD (10). The light emitting column (502) and the light incident column (503) respectively pass through the screen decoration member (2) and extend into the outgoing light hole (603) and the incoming light hole (604) correspondingly. And the light emitting surface (506) of the light emitting column (502) and the light incident surface (507) of the light incident column (503) are flush with the surface of the screen cover plate (6).

6. The terminal according to claim 4, characterized in that, The fixed groove (501) is provided with a light-emitting groove (504) and a light-incident groove (505) corresponding to the light-emitting column (502) and the light-incident column (503) respectively, and the light-emitting port and the light-incident port of the sensor device (4) are respectively located in the light-emitting groove (504) and the light-incident groove (505).

7. The terminal according to claim 6, wherein The light guide member (5) further includes a light-shielding bracket (508), and the light-shielding bracket (508) is formed between the light-emitting column (502) and the light-incident column (503) to separate the light-emitting column (502) and the light-incident column (503).

8. The terminal according to claim 4, characterized in that, A silver coating is provided on the outer peripheral surface of the light-emitting column (502), and / or a silver coating is provided on the outer peripheral surface of the light-incident column (503).

9. The terminal according to claim 1, wherein The middle frame (1) is provided with a front sound cavity groove (103) and a speaker sound outlet channel (104) communicating with the front sound cavity groove (103). The front sound cavity groove (103) is formed on the inner wall of the middle frame (1) and recessed toward the outer wall direction. The notch of the front sound cavity groove (103) communicates with the front sound cavity (301), and the speaker sound outlet channel (104) penetrates through the middle frame (1) to communicate with the external environment.

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