Front shell assembly

Abstract

The present invention discloses a front shell assembly, which includes a terminal front shell and a handset, wherein the terminal front shell has a bottom wall and a side frame, wherein the side frame has an upper side wall located in the width direction of the terminal front shell, and the handset includes a handset holder. The area near the upper side wall in the bottom wall has a receiving space, and the receiving space runs through the bottom wall along the thickness direction of the terminal front shell. The handset holder is embedded in the receiving space and is integrally formed with the terminal front shell. The present invention does not need to set two positioning ribs and an avoidance gap between the positioning ribs and the handset, which reduces the distance between the lower side of the handset and the upper side wall of the terminal front shell, reduces the area that needs to be shielded by the non-light-transmitting area of ​​the front cover of the mobile terminal, and reduces the width of the non-light-transmitting area in the length direction of the front shell assembly, thereby reducing the black border area on the upper part of the mobile terminal and increasing the display area ratio of the front cover of the mobile terminal.

Description

Technical Field

[0001] The invention relates to the field of electronic equipment, and in particular to a front shell component. Background Art

[0002] With the development of science and technology, electronic devices such as mobile terminals (such as mobile phones) have become widely popular and have become an indispensable part of people's work and life. At the same time, in order to meet the needs of consumers, these mobile terminals generally have various audio-visual entertainment functions such as playing videos and listening to songs. With the improvement of living standards, users have more and more requirements for the functions and appearance design of electronic devices such as mobile terminals.

[0003] Currently, see Figure 1-2 The front shell assembly 1' of the mobile terminal generally includes a terminal front shell 2' and a handset. The terminal front shell 2' has a bottom wall 20' and a side frame 21' surrounding the bottom wall 20'. The side frame 21' has an upper side wall 22' located in the width direction of the terminal front shell 2'. An annular positioning frame 23' is provided on the back side of the bottom wall 20' near the upper side wall 22'. The handset is embedded in the annular positioning frame 23'. The annular positioning frame 23' has two positioning ribs 24' arranged opposite to each other along the length direction of the terminal front shell 2', and the two positioning ribs 24' are respectively located on both sides of the handset and are both located in the width direction of the terminal front shell 2'.

[0004] However, this structural form has the following defects: in the length direction of the terminal front shell, two positioning ribs are distributed on both sides of the earpiece, and there is an avoidance gap between the positioning ribs and the earpiece, and the distance between the positioning ribs located at the bottom and the upper side wall of the terminal front shell is relatively large. Since the non-light-transmitting area of ​​the front cover of the mobile terminal needs to shield a large area, the width of the non-light-transmitting area in the length direction of the front shell assembly is relatively large, which makes the black border area on the upper part of the mobile terminal larger, reducing the display area ratio of the front cover of the mobile terminal. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a front shell assembly to overcome the defect that the traditional front shell assembly of a mobile terminal in the prior art causes a larger black border area on the upper part of the mobile terminal and reduces the display area ratio of the front cover of the mobile terminal.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A front shell assembly, for a mobile terminal, the front shell assembly comprising a terminal front shell and a handset, the terminal front shell having a bottom wall and a side frame surrounding the bottom wall, the side frame having an upper side wall located in a width direction of the terminal front shell, and the handset comprising a handset holder;

[0008] The bottom wall has a receiving space in an area close to the upper side wall. The receiving space penetrates the bottom wall along the thickness direction of the terminal front shell. The handset holder is embedded in the receiving space and is integrally formed with the terminal front shell.

[0009] In the present solution, the earpiece holder is integrally formed with the terminal front shell, and there is no need to additionally set two positioning ribs and an avoidance gap between the positioning ribs and the earpiece, which reduces the distance between the lower side of the earpiece and the upper side wall of the terminal front shell, reduces the area that needs to be shielded by the non-light-transmitting area of ​​the front cover of the mobile terminal, and reduces the width of the non-light-transmitting area in the length direction of the front shell assembly, thereby reducing the black border area on the upper part of the mobile terminal and increasing the display area ratio of the front cover of the mobile terminal.

[0010] Optionally, the receiver holder is adjacent to the upper side wall. This can further reduce the distance between the lower side of the receiver and the upper side wall of the terminal front shell, thereby reducing the area that needs to be shielded by the non-light-transmitting area of ​​the front cover of the mobile terminal.

[0011] Optionally, the receiver holder is integrally formed with the terminal front shell by injection molding, which has simple process, low production cost and high structural strength.

[0012] Optionally, the front end surface of the handset holder is flush with the front surface of the adjacent bottom wall of the terminal front shell.

[0013] In this solution, the front end surface of the handset holder is flush with the front surface of the bottom wall of the adjacent terminal front shell, which facilitates direct processing and forming of the terminal front shell with the handset holder and assembling the remaining parts of the handset to the handset holder.

[0014] Optionally, the handset holder is provided with a mounting groove, and the mounting groove penetrates the handset holder along the thickness direction of the terminal front shell;

[0015] The handset also includes a magnetic steel, a sound mold, a handset front cover and a handset foam arranged in sequence from back to front along the thickness direction of the terminal front shell, the magnetic steel, the sound mold and the handset front cover are all fixed in the mounting groove, and the magnetic steel and the sound mold are spaced apart;

[0016] The earpiece foam is fixed to the earpiece front cover and is located outside the mounting groove. The earpiece foam, the earpiece front cover and the sound mold surround a sound cavity. The earpiece foam is provided with a sound release hole communicated with the sound cavity.

[0017] Optionally, the earpiece foam is fixed to the earpiece front cover by a glue dispensing process;

[0018] The earpiece front cover and / or the sound mold are fixed to the mounting groove by a glue dispensing process.

[0019] In this solution, a dispensing process is adopted, which is not only simple in process but also can ensure the sealing effect of the sound cavity, thereby ensuring that the sound is concentrated and transmitted through the sound hole.

[0020] Optionally, the magnetic steel and the mounting groove are in interference fit, which not only ensures the firmness and stability of the magnetic steel connection, but also facilitates the disassembly and assembly of the magnetic steel.

[0021] Optionally, the earpiece also includes an elastic connector, one end of which is electrically connected to the audio module, the other end of which extends beyond the rear end surface of the earpiece holder and is used to be electrically connected to the mainboard of the mobile terminal, and the other end of the elastic connector is provided with a long strip protrusion.

[0022] In this solution, the provision of the long strip protrusion is conducive to reducing the friction between the elastic connecting member and the mainboard, thereby improving the sound quality of the earpiece.

[0023] Optionally, the sound module includes a voice coil and a vibration membrane, the voice coil is connected to the vibration membrane, and one end of the elastic connecting member is electrically connected to the voice coil.

[0024] Optionally, the handset further includes a conductive component, the conductive component is fixed to the magnetic steel and electrically connected to the magnetic steel, and the conductive component is electrically connected to a mainboard of the mobile terminal.

[0025] In this solution, the magnet of the earpiece is connected to the mainboard through a conductive component to achieve grounding of the magnet, thereby reducing the impact of the earpiece on the performance of the nearby RF antenna.

[0026] The positive and progressive effects of the present invention are:

[0027] In the front shell assembly of the present invention, the earpiece holder and the terminal front shell are integrally formed, and there is no need to set two positioning ribs and an avoidance gap between the positioning ribs and the earpiece, which reduces the distance between the lower side of the earpiece and the upper side wall of the terminal front shell, reduces the area that needs to be shielded in the non-light-transmitting area of ​​the front cover of the mobile terminal, and reduces the width of the non-light-transmitting area in the length direction of the front shell assembly, thereby reducing the black border area on the upper part of the mobile terminal and increasing the display area ratio of the front cover of the mobile terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a partial structural schematic diagram of an existing front shell assembly.

[0029] Figure 2 It is a partial structural schematic diagram of a terminal front shell of an existing front shell assembly.

[0030] Figure 3 It is a partial structural schematic diagram of a front shell assembly according to an embodiment of the present invention.

[0031] Figure 4 It is a partial three-dimensional structural schematic diagram of a front shell assembly according to an embodiment of the present invention, wherein the structure of the back side of the front shell assembly is mainly shown.

[0032] Figure 5 The figure is a schematic structural diagram of the earpiece foam of the front shell assembly according to an embodiment of the present invention.

[0033] Description of Reference Numerals

[0034] Prior art

[0035] Front shell assembly: 1'

[0036] Terminal front shell: 2'

[0037] Bottom wall: 20'

[0038] Side frame: 21'

[0039] Upper side wall: 22'

[0040] Ring positioning frame: 23'

[0041] Positioning rib: 24'

[0042] Handset: 3'

[0043] The present invention

[0044] Front shell assembly: 1

[0045] Terminal front shell: 2

[0046] Bottom wall: 20

[0047] Front surface: 200

[0048] Side border: 21

[0049] Upper sidewall: 22

[0050] Earpiece: 3

[0051] Handset holder: 30

[0052] Mounting slots: 300

[0053] Front face: 301

[0054] Magnet: 31

[0055] Sound model: 32

[0056] Voice coil: 320

[0057] Vibrating membrane: 321

[0058] Handset front cover: 33

[0059] Earpiece foam: 34

[0060] Sound holes: 340

[0061] Sound cavity: 35

[0062] Elastic connector: 36

[0063] Length direction of terminal front shell: L

[0064] Width of terminal front shell: W

[0065] Thickness direction of terminal front shell: T DETAILED DESCRIPTION

[0066] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0067] Figure 3 and Figure 4 According to an embodiment of the present invention, a schematic structure of a front housing assembly 1 is shown. Figure 3-4 As shown, the front shell assembly 1 is used for a mobile terminal. In this embodiment, the mobile terminal can be a mobile phone or a tablet computer. The front shell assembly 1 includes a terminal front shell 2 and an earpiece 3. In this embodiment, the earpiece 3 is arranged at the upper end of the mobile terminal (i.e., the upper end along the length direction of the mobile terminal and located at the upper end of the display area of ​​the mobile terminal), so that the earpiece 3 can be close to the user's ear when answering, and the sound is louder and clearer.

[0068] The handset 3 includes a handset holder 30. The terminal front shell 2 has a bottom wall 20 and a side frame 21 surrounding the bottom wall 20. The side frame 21 has an upper side wall 22 located in the width direction W of the terminal front shell. The bottom wall 20 has a receiving space (not shown) in an area close to the upper side wall 22. The receiving space runs through the bottom wall 20 along the thickness direction T of the terminal front shell. The handset holder 30 is embedded in the receiving space and is integrally formed with the terminal front shell 2.

[0069] The earpiece holder 30 is integrally formed with the terminal front shell 2, and there is no need to additionally set two positioning ribs and an avoidance gap between the positioning ribs and the earpiece 3, which reduces the distance between the lower side of the earpiece 3 and the upper side wall 22 of the terminal front shell 2, and reduces the area that needs to be shielded in the non-light-transmitting area of ​​the front cover of the mobile terminal, thereby reducing the width of the non-light-transmitting area in the length direction of the front shell assembly 1 (parallel to the length direction L of the terminal front shell), thereby reducing the black border area on the upper part of the mobile terminal and increasing the display area ratio of the front cover of the mobile terminal.

[0070] Specifically, the handset holder 30 is integrally formed with the terminal front shell 2 by an injection molding process. The process is simple, the production cost is low, and the structural strength is high. In this embodiment, the material of the handset holder 30 is the same as that of the terminal front shell 2. During processing, the handset holder 30 part of the handset 3 is processed in the terminal front shell 2 by an injection molding process. After the injection molding is completed, the other parts of the handset 3 are assembled to the handset holder 30 in the terminal front shell 2.

[0071] Furthermore, the handset holder 30 is adjacent to the upper side wall 22. This can further reduce the distance between the lower side of the handset 3 and the upper side wall 22 of the terminal front shell 2, thereby reducing the area that needs to be shielded by the non-light-transmitting area of ​​the front cover of the mobile terminal.

[0072] Furthermore, the front end surface 301 of the receiver holder 30 is flush with the front surface 200 of the bottom wall 20 of the adjacent terminal front shell 2. This facilitates direct processing of the terminal front shell 2 with the receiver holder 30 and facilitates assembly of the remaining components of the receiver 3 to the receiver holder 30.

[0073] In addition, the handset holder 30 is provided with a mounting groove 300, and the mounting groove 300 runs through the handset holder 30 along the thickness direction T of the terminal front shell. The handset 3 also includes a magnetic steel 31, a sound mold 32, a handset front cover 33 and a handset foam 34 arranged in sequence from back to front along the thickness direction T of the terminal front shell. The magnetic steel 31, the sound mold 32 and the handset front cover 33 are all fixed in the mounting groove 300, and the magnetic steel 31 and the sound mold 32 are arranged at intervals. In this embodiment, the magnetic steel 31 and the mounting groove 300 are interference fit. In this way, not only the firmness and stability of the connection of the magnetic steel 31 can be ensured, but also the disassembly and assembly of the magnetic steel 31 can be easily realized.

[0074] The earpiece foam 34 is fixed to the earpiece front cover 33 and is located outside the mounting groove 300. The earpiece foam 34, the earpiece front cover 33, and the sound mold 32 surround to form a sound cavity 35. Figure 5 It is understood that the earpiece foam 34 is provided with a sound release hole 340 connected to the sound cavity 35.

[0075] The earpiece foam 34 is fixed to the earpiece front cover 33 by a glue dispensing process. The earpiece front cover 33 and the sound mold 32 are both fixed to the mounting groove 300 by a glue dispensing process. The glue dispensing process is not only simple in process, but also can ensure the sealing effect of the sound cavity 35, thereby ensuring that the sound is concentrated and transmitted through the sound release hole 340. In an alternative embodiment, the earpiece front cover 33 is fixed to the mounting groove 300 by a glue dispensing process, or the sound mold 32 is fixed to the mounting groove 300 by a glue dispensing process.

[0076] like Figure 3-4As shown, the handset 3 also includes an elastic connector 36. One end of the elastic connector 36 is electrically connected to the sound mold 32, and the other end of the elastic connector 36 extends to the outside of the rear end surface of the handset holder 30, and is used to be electrically connected to the mainboard (not shown in the figure) of the mobile terminal. And the other end of the elastic connector 36 is provided with a long strip protrusion (not shown in the figure). This is conducive to reducing the friction between the elastic connector 36 and the mainboard, thereby improving the sound quality of the handset 3. The long strip protrusion can be formed by mold stamping, so when processing the elastic connector 36, it is only necessary to modify the shape of the mold, and there will be no increase in cost. In this embodiment, the elastic connector 36 is a metal spring.

[0077] The audio module 32 includes a voice coil 320 and a vibration membrane 321, the voice coil 320 is connected to the vibration membrane 321, and one end of the elastic connector 36 is electrically connected to the voice coil 320. When in use, the audio signal of the mainboard is input to the voice coil 320 through the elastic connector 36, and the magnetic field of the voice coil 320 changes and vibrates, thereby driving the vibration membrane 321 to vibrate and produce sound, and the sound is transmitted from the sound hole 340.

[0078] The handset 3 also includes a conductive component (not shown in the figure), which is fixed to the magnetic steel 31 and electrically connected to the magnetic steel 31, and the conductive component is electrically connected to the mainboard of the mobile terminal. In this solution, the magnetic steel 31 of the handset 3 is connected to the mainboard through the conductive component to achieve grounding of the magnetic steel 31, thereby reducing the impact of the handset 3 on the performance of the radio frequency antenna near it. In this embodiment, the conductive component is a conductive cloth.

[0079] According to the design characteristics of the RF antenna of the mobile terminal product, the metal components around the RF antenna need to be grounded to reduce their influence on the performance of the RF antenna. The handset 3 of this embodiment is grounded to the exposed copper on the mainboard through the conductive cloth. When the handset 3 is in working state, the magnetic steel 31 of the handset 3 is connected to the mainboard through the conductive cloth, so that the magnetic steel 31 of the handset 3 is grounded, thereby reducing the influence of the handset 3 on the performance of the RF antenna near it.

[0080] In the description of the present invention, one embodiment may be accompanied by multiple drawings, and the drawing marks of the same components in the same embodiment are not necessarily marked in every drawing; however, those skilled in the art should understand that when describing one or more drawings in an embodiment, they can be understood in conjunction with other drawings in the embodiment; those skilled in the art should understand that when it is not specified which drawing a text specifically corresponds to, it can be understood in conjunction with all drawings in the embodiment.

[0081] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0082] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A front shell assembly for a mobile terminal, the front shell assembly comprising a terminal front shell and a handset, the terminal front shell having a bottom wall and a side frame surrounding the bottom wall, the side frame having an upper side wall located in the width direction of the terminal front shell, the handset comprising a handset holder, characterized in that: The bottom wall has a receiving space in an area close to the upper side wall, the receiving space penetrates the bottom wall along the thickness direction of the terminal front shell, the handset holder is embedded in the receiving space and is integrally formed with the terminal front shell; The handset holder is provided with a mounting groove, and the mounting groove penetrates the handset holder along the thickness direction of the terminal front shell; The earpiece also includes a magnetic steel, a sound mold, an earpiece front cover and an earpiece foam which are arranged in sequence along the thickness direction of the terminal front shell. The magnetic steel is farther away from the upper side wall than the sound mold, the earpiece front cover and the earpiece foam. The magnetic steel, the sound mold and the earpiece front cover are all fixed in the mounting groove. The sound mold includes a voice coil and a vibration membrane, and the voice coil is connected to the vibration membrane.

2. The front housing assembly according to claim 1, characterized in that: The earpiece holder is adjacent to the upper side wall.

3. The front housing assembly according to claim 1, characterized in that: The handset holder is integrally formed with the terminal front shell through an injection molding process.

4. The front housing assembly according to claim 1, characterized in that: The front end surface of the receiver support is flush with the front surface of the adjacent bottom wall of the terminal front shell.

5. The front housing assembly according to claim 1, characterized in that: The magnetic steel and the sound mold are spaced apart; The earpiece foam is fixed to the earpiece front cover and is located outside the mounting groove. The earpiece foam, the earpiece front cover and the sound mold surround a sound cavity. The earpiece foam is provided with a sound release hole communicated with the sound cavity.

6. The front housing assembly according to claim 5, characterized in that: The earpiece foam is fixed to the earpiece front cover by a glue dispensing process; The earpiece front cover and / or the sound mold are fixed to the mounting groove by a glue dispensing process.

7. The front housing assembly according to claim 5, characterized in that: The magnetic steel and the mounting groove are in interference fit.

8. The front housing assembly according to claim 5, characterized in that: The handset also includes an elastic connector, one end of which is electrically connected to the audio module, and the other end of which extends beyond the rear end surface of the handset holder and is used to be electrically connected to the mainboard of the mobile terminal, and the other end of the elastic connector is provided with a long strip protrusion.

9. The front housing assembly according to claim 8, characterized in that: One end of the elastic connecting member is electrically connected to the voice coil.

10. The front housing assembly according to claim 5, characterized in that: The receiver further includes a conductive component, the conductive component is fixed to the magnetic steel and electrically connected to the magnetic steel, and the conductive component is electrically connected to a mainboard of the mobile terminal.

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