CN107708353A - Shell assembly of terminal and terminal with same - Google Patents

Abstract

The present invention discloses a shell assembly of a terminal and a terminal having the same, wherein the shell assembly comprises: a middle frame; an electroacoustic assembly, the electroacoustic assembly is arranged on the middle frame, and the electroacoustic assembly has a sound transmission hole; and a decorative part, the decorative part is opposite to the sound transmission hole, and the decorative part is threadedly connected to the electroacoustic assembly. According to the shell assembly of the present invention, by threading the decorative part with the electroacoustic assembly, not only can the use of auxiliary materials and the mounting of auxiliary materials be reduced, the material cost and labor cost are reduced, the assembly process is simplified, the assembly effect is improved, the need to disassemble the screen due to the inadequate mounting of the auxiliary materials is avoided, and the airtight reliability is enhanced.

Description

Housing assembly of terminal and terminal having same

technical field

The present invention relates to the field of terminal technology, in particular to a terminal housing assembly and a terminal having the same.

Background technique

In the related technology, a large amount of auxiliary materials are used in the assembly process of the decorative parts of the electro-acoustic components to ensure the airtightness of the sound transmission channel, but the assembly of the auxiliary materials is mostly manual placement, the labor cost is high, and the assembly effect is difficult to control.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a terminal housing assembly, which has the advantages of low cost, good assembly effect, and strong airtightness.

The present invention also proposes a terminal, which includes the housing assembly of the above-mentioned terminal.

The shell assembly of the terminal according to the present invention includes: a middle frame; an electroacoustic assembly, the electroacoustic assembly is arranged on the middle frame, and the electroacoustic assembly has a sound transmission hole; and a decoration, the decoration Opposite to the sound transmission hole, the decorative part is screwed to the electro-acoustic assembly.

A terminal according to the present invention includes the housing assembly of the above-mentioned terminal.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of an electro-acoustic assembly according to an embodiment of the present invention, wherein the electro-acoustic assembly is a receiver assembly;

Fig. 2 is a schematic structural diagram of an electro-acoustic component according to an embodiment of the present invention, wherein the electro-acoustic component is a receiver component;

Fig. 3 is a schematic structural diagram of an electro-acoustic component according to an embodiment of the present invention, wherein the electro-acoustic component is a receiver component;

Fig. 4 is a schematic structural diagram of an electro-acoustic component according to an embodiment of the present invention, wherein the electro-acoustic component is a receiver component;

Fig. 5 is a schematic structural diagram of an electro-acoustic assembly according to an embodiment of the present invention, wherein the electro-acoustic assembly is a speaker assembly;

6 is a schematic structural diagram of an electro-acoustic component according to an embodiment of the present invention, wherein the electro-acoustic component is a microphone component;

Fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

Reference signs:

Terminal 1000,

housing assembly 100,

Electroacoustic component 1, sound transmission hole 11, bracket 12, sealing plate 13, diaphragm 14, speaker 15, sound transmission part 16, microphone 17, shielding cover 18,

Middle frame 2, mounting hole 21,

Decorative part 3, metal mesh 31, sound hole 311, flange 32,

Cover plate 4, sound hole 41.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes the housing assembly 100 of the terminal 1000 and the terminal 1000 according to an embodiment of the present invention with reference to FIGS. 1-7 .

As shown in FIGS. 1-6 , a housing assembly 100 of a terminal 1000 according to an embodiment of the present invention includes: a middle frame 2 , an electroacoustic assembly 1 and a decoration 3 .

Specifically, as shown in Figures 1-5, the electro-acoustic component 1 is arranged on the middle frame 2, and the electro-acoustic component 1 has a sound transmission hole 11, and the sound transmission hole 11 has the function of transmitting sound, and can transmit external sound into the electroacoustic component 1 or transmit the sound generated by the electroacoustic component 1 . The decorative part 3 is opposite to the sound transmission hole 11 , and the decorative part 3 is screwed to the electroacoustic component 1 . As a result, the use of auxiliary materials and the placement of auxiliary materials can be reduced, the reliability of airtightness is enhanced, the cost of materials and labor costs are reduced, the assembly process is simplified, the assembly effect is improved, and the need for improper bonding of auxiliary materials is avoided. Split screen operation.

According to the housing assembly 100 of the terminal 1000 in the embodiment of the present invention, by screwing the decorative part 3 and the electroacoustic assembly 1, not only the use of auxiliary materials and the mounting of auxiliary materials can be reduced, material costs and labor costs are reduced, and assembly is simplified. The process improves the assembly effect, avoids the need to disassemble the screen due to the inappropriate bonding of auxiliary materials, and also enhances the airtight reliability.

In some embodiments of the present invention, as shown in FIGS. 1-6 , the middle frame 2 is provided with a mounting hole 21 , and at least part of the electro-acoustic component 1 is disposed in the mounting hole 21 . Thus, the structure of the middle frame 2 and the electro-acoustic component 1 can be made more compact and reasonable, and the overall thickness of the middle frame 2 and the electro-acoustic component 1 can be reduced to meet the thinning and thinning requirements of the terminal 1000 .

Wherein, in order to facilitate the installation of the electroacoustic component 1, the installation hole 21 can be a through hole through the thickness direction of the middle frame 2, and the installation hole 21 can also be a groove body arranged on the middle frame 2, and the opening of the groove body faces the electroacoustic component On the side of 1 away from the decorative part 3, a through hole is provided on the bottom wall of the tank body, the through hole can play the role of sound transmission, and the part of the decorative part 3 can also extend into the through hole.

Further, in order to improve the reliability of fixing between the electro-acoustic component 1 and the installation hole 21 , an interference fit may be used between the installation hole 21 and the electro-acoustic component 1 . Of course, the present invention is not limited thereto, and double-sided adhesive tape may be provided between the inner peripheral wall of the installation hole 21 and the outer peripheral wall of the electro-acoustic component 1 to achieve relative fixing of the decorative part 3 and the installation hole 21 . In addition, the inner peripheral wall of the installation hole 21 and the outer peripheral wall of the electro-acoustic component 1 can also be fixed by dispensing glue.

Further, as shown in FIGS. 1-6 , at least part of the decoration 3 is located in the installation hole 21 . Thus, not only can the structure of the decorative part 3, the electro-acoustic component 1 and the middle frame 2 be more compact and reasonable, but also the connection between the decorative part 3 and the electro-acoustic component 1 is facilitated, and the relationship between the decorative part 3 and the electro-acoustic component 1 is improved. reliability of the connection.

In some embodiments of the present invention, as shown in FIGS. 1-6 , the decorative part 3 includes a metal mesh 31 and a flanging 32, and the flanging 32 is arranged at the edge of the metal mesh 31, wherein the metal mesh 31 and the flanging 32 It can be integrally formed or fixed by dispensing glue. The metal mesh 31 is provided with a plurality of sound outlet holes 311 to allow the sound to pass through. The flange 32 is screwed to the electroacoustic component 1 . This facilitates the connection between the trim part 3 and the electroacoustic component 1 .

In addition, the decorative part 3 is a magnetically conductive material, which can prevent iron filings and dust from adhering to the decorative part 3 and blocking the sound hole 311 on the decorative part 3, improving the aesthetics of the decorative part 3 and improving the quality of the decorative part 3. Sound effects. Wherein the decorative part 3 may be a stainless steel part, and the stainless steel may be SUS430 stainless steel.

In some embodiments of the present invention, as shown in FIGS. 1-4 , the electroacoustic component 1 is a receiver component, and the receiver component includes a bracket 12 , a sealing plate 13 and a diaphragm 14 . The cover plate 13 is arranged on the support 12, the sound transmission hole 11 is located on the cover plate 13, the decorative part 3 is located on the side of the cover plate 13 away from the support 12, the decorative part 3 is threaded with at least one of the support 12 and the cover plate 13 connect. Thus, the decorative part 3 can be fixed to the receiver assembly, the use of auxiliary materials and the mounting of auxiliary materials can be reduced, the airtight reliability is enhanced, the material cost and labor cost are reduced, the assembly process is simplified, and the assembly effect is improved. It avoids the need to disassemble the screen due to the inadequacy of the auxiliary materials.

As shown in FIG. 1 , the diaphragm 14 is located on a side of the sealing plate 13 close to the bracket 12 , and the diaphragm 14 is located inside the bracket 12 . As shown in FIGS. 2-4 , the diaphragm 14 is located between the bracket 12 and the sealing plate 13 . As shown in FIGS. 1-4 , the flange 32 of the decorative part 3 is perpendicular to the metal mesh 31 , and the sealing plate 13 and the bracket 12 are located inside the flange 32 . As shown in Figures 1 and 2, the inner peripheral wall of the flange 32 of the decorative part 3 is provided with an internal thread, and the outer peripheral wall of the bracket 12 is provided with an external thread, and the internal thread and the external thread cooperate to realize the decorative part 3 and the receiver assembly. As shown in Figure 3, the inner peripheral wall of the flange 32 of the decorative part 3 is provided with an internal thread, and the outer peripheral wall of the sealing plate 13 is provided with an external thread, and the internal thread and the external thread cooperate to realize the decorative part 3 and the receiver. The connection of the components; as shown in Figure 4, the inner peripheral wall of the flange 32 of the decorative part 3 is provided with internal threads, the outer peripheral wall of the sealing plate 13 and the outer peripheral wall of the bracket 12 are provided with external threads, internal threads and external threads Cooperate to realize the connection of the decorative part 3 and the receiver assembly.

Furthermore, the sealing plate 13 is made of a magnetically conductive material, thereby preventing iron filings and dust from adhering to the sealing plate 13, improving the reliability of the sealing plate 13, and thus improving the reliability of the receiver assembly. Wherein the sealing plate 13 may be a stainless steel piece, and the stainless steel may be SUS430 stainless steel. The bracket 12 can be a plastic part.

In some embodiments of the present invention, as shown in FIG. 5 , the electroacoustic assembly 1 is a loudspeaker assembly, and the loudspeaker assembly includes a loudspeaker 15 and a sound transmission part 16, and the sound transmission part 16 is arranged on the loudspeaker 15, and the sound transmission hole 11 is located at On the sound transmission part 16 , the decoration part 3 is located on the side of the sound transmission part 16 away from the speaker 15 , and the decoration part 3 is screwed to the sound transmission part 16 . Thus, the decorative part 3 can be fixed to the speaker assembly, the use of auxiliary materials and the placement of auxiliary materials can be reduced, the airtight reliability is enhanced, the material cost and labor cost are reduced, the assembly process is simplified, and the assembly effect is improved. It avoids the need to disassemble the screen due to the inadequacy of the auxiliary materials.

As shown in Figure 5, the flange 32 of the decorative part 3 is perpendicular to the metal mesh 31, the sound transmission part 16 is positioned at the inner side of the flange 32, and the inner peripheral wall of the flange 32 of the decorative part 3 is provided with an internal thread, and the sound transmission part 16 An external thread is provided on the outer peripheral wall, and the internal thread and the external thread cooperate to realize the connection between the decorative part 3 and the loudspeaker assembly.

In some embodiments of the present invention, as shown in Figure 6, the electroacoustic assembly 1 is a microphone assembly, and the microphone assembly includes a microphone 17 and a shielding cover 18, the shielding cover 18 is arranged on the microphone 17, and the sound transmission hole 11 is located at the shielding cover 18 , the decorative part 3 is located on the side of the shielding case 18 away from the microphone 17 , and the decorative part 3 is screwed to the shielding case 18 . Thus, the decorative part 3 can be fixed to the microphone assembly, the use of auxiliary materials and the mounting of auxiliary materials can be reduced, the airtight reliability is enhanced, the material cost and labor cost are reduced, the assembly process is simplified, and the assembly effect is improved. It avoids the need to disassemble the screen due to the inadequacy of the auxiliary materials.

As shown in Figure 6, the flange 32 of the decorative part 3 is perpendicular to the metal mesh 31, the shielding cover 18 is positioned at the inner side of the flange 32, the inner peripheral wall of the flange 32 of the decorative part 3 is provided with internal threads, and the outer periphery of the shielding cover 18 An external thread is provided on the wall, and the internal thread and the external thread cooperate to realize the connection between the decorative part 3 and the microphone assembly.

In some embodiments of the present invention, as shown in FIGS. 1-6 , the cover plate 4 of the housing assembly 100 is arranged on the side of the decorative part 3 away from the electroacoustic component 1 , and the cover plate 4 is provided with the decorative part. 3 corresponding to the sound outlet 311 of the sound outlet 41. This facilitates sound transmission. Wherein, the cover plate 4 may be a glass cover plate 4 or a ceramic cover plate 4 , thereby increasing the aesthetics of the housing assembly 100 .

Further, the cover plate 4 and the decorative part 3 can be connected by double-sided adhesive tape. This increases the reliability of the connection between the cover 4 and the trim part 3 . Of course, in order to ensure the airtightness of the sound transmission channel, foam can be provided between the cover plate 4 and the decorative part 3, and the two sides of the foam are respectively connected to the cover plate 4 and the decorative part 3 through double-sided adhesive tape. In addition, the cover plate 4 and the decorative part 3 can also be connected by dispensing glue, and the dispensing connection operation is simple, and the structure can be simplified, which is beneficial to reduce the cost.

As shown in FIG. 7 , a terminal 1000 according to an embodiment of the present invention includes the housing assembly 100 of the terminal 1000 described above.

According to the terminal 1000 of the embodiment of the present invention, by screwing the decorative part 3 and the electroacoustic component 1, not only the use of auxiliary materials and the placement of auxiliary materials can be reduced, the material cost and labor cost are reduced, the assembly process is simplified, and the assembly process is improved. As a result, it avoids the need to disassemble the screen due to the improper bonding of auxiliary materials, and also enhances the airtight reliability.

As used herein, "terminal 1000" includes, but is not limited to, configured to connect via a wireline connection (such as via a public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, direct cable connection, and/or another a data connection/network) and/or via (for example, for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal A device for receiving/transmitting communication signals through a wireless interface. Communication terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" and/or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/Intranet access , a PDA with a web browser, organizer, calendar, and/or Global Positioning System (GPS) receiver; and a conventional laptop and/or palm-type receiver or other electronic device including a radiotelephone transceiver.

In the embodiment of the present invention, the terminal 1000 device may be a variety of devices that can obtain data from the outside and process the data, or the terminal 1000 device may be a variety of built-in batteries that can obtain current from the outside to The device on which the battery is charged, for example, a mobile phone, a tablet computer, a computing device or an information display device, etc.

The terminal 1000 to which the present invention is applicable is introduced by taking a mobile phone as an example. The mobile phone may also include components such as a radio frequency circuit, a memory, an input unit, a wireless fidelity (WiFi, wireless fidelity) module, a display unit, a sensor, an audio circuit, a processor, a projection unit, a camera unit, and a battery.

The radio frequency circuit can be used to receive and send signals during the process of sending and receiving information or talking. In particular, after receiving the downlink information of the base station, it is processed by the processor; in addition, the uplink data of the mobile phone is sent to the base station. Typically, radio frequency circuitry includes, but is not limited to, an antenna, at least one amplifier, transceiver, coupler, low noise amplifier, duplexer, and the like. In addition, radio frequency circuits can also communicate with networks and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System for Mobile Communications (GSM, Global System for Mobile communication), General Packet Radio Service (GPRS, General Packet Radio Service), Code Division Multiple Access (CDMA, Code Division Multiple Access), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term Evolution), email, Short Message Service (SMS, Short Messaging Service), etc.

Wherein, the memory can be used to store software programs and modules, and the processor executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); The data created by the use (such as audio data, phone book, etc.) and so on. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The input unit can be used to receive input numbers or character information, and generate key signals related to user settings and function control of the mobile phone. Specifically, the input unit may include a touch panel and other input devices. The touch panel, also known as the touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel or near the touch panel by using any suitable object or accessory such as a finger, a stylus), And drive the corresponding connection device according to the preset program. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the To the processor, and can receive the command sent by the processor and execute it. In addition, various types of touch panels, such as resistive, capacitive, infrared, and surface acoustic wave, can be used to realize the touch panel. In addition to the touch panel, the input unit may also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

Wherein, the display unit can be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit may include a display panel, and optionally, the display panel may be configured in the form of a liquid crystal display unit (LCD, Liquid CrystalDisplay), an organic light-emitting diode (OLED, Organic Light-Emitting Diode), or the like. Further, the touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it will be sent to the processor to determine the type of the touch event, and then the processor will display the touch event on the display panel according to the type of the touch event. Provide corresponding visual output.

Wherein, the position in the display panel outside the visual output that can be recognized by the human eyes may be referred to as a "display area" described later. The touch panel and the display panel can be used as two independent components to realize the input and output functions of the mobile phone, or the touch panel and the display panel can be integrated to realize the input and output functions of the mobile phone.

In addition, the mobile phone may further include at least one sensor, such as an attitude sensor, a light sensor, and other sensors.

Specifically, the attitude sensor can also be called a motion sensor, and as one of the motion sensors, a gravity sensor can be cited. The gravity sensor uses elastic sensitive elements to make a cantilever displacement device, and uses an energy storage device made of elastic sensitive elements. The spring drives the electrical contact, so as to convert the change of gravity into the change of electrical signal.

As another type of motion sensor, an accelerometer sensor can be cited. The accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of mobile phone posture ( Such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.

In the embodiment of the present invention, the above-listed motion sensor can be used as the element for obtaining the "attitude parameter" described later, but it is not limited thereto. Other sensors capable of obtaining the "attitude parameter" all fall within the protection scope of the present invention. For example, a gyroscope, etc., and the working principle and data processing process of the gyroscope may be similar to those of the prior art, and here, in order to avoid redundant description, the detailed description thereof is omitted.

In addition, in the embodiment of the present invention, other sensors such as a barometer, a hygrometer, a thermometer, and an infrared sensor may also be configured as sensors, which will not be repeated here.

The light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor can turn off the display panel and/or the backlight when the mobile phone is moved to the ear.

Audio circuitry, speaker 15 and microphone provide an audio interface between the user and the handset. The audio circuit can transmit the electrical signal converted from the received audio data to the speaker 15, and the speaker 15 converts it into a sound signal output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is converted by the audio circuit after receiving After the audio data is output to the processor for processing, the audio data is sent to another mobile phone through the radio frequency circuit, or the audio data is output to the memory for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse the web, and access streaming media through the WiFi module. It provides users with wireless broadband Internet access. However, it can be understood that it is not an essential component of the mobile phone, and can be completely omitted according to needs within the scope of not changing the essence of the invention.

The processor is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and/or modules stored in the memory, and calling data stored in the memory, it executes various functions of the mobile phone. Various functions and processing data, so as to monitor the mobile phone as a whole. Optionally, the processor may include one or more processing units; preferably, the processor may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modulation The demodulation processor mainly handles wireless communication.

It can be understood that the foregoing modem processor may not be integrated into the processor.

In addition, the processor may serve as an implementation element of the above-mentioned processing unit, and perform the same or similar functions as the processing unit.

Cell phones also include a power source (such as a battery) that powers various components.

Preferably, the power supply can be logically connected to the processor through the power management system, so that functions such as charging, discharging, and power consumption management can be realized through the power management system. Although not shown, the mobile phone may also include a Bluetooth module, etc., which will not be repeated here.

It should be noted that the mobile phone is only an example of a terminal 1000 device, and the present invention is not particularly limited. The present invention can be applied to electronic devices such as mobile phones and tablet computers, and the present invention is not limited thereto.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (12)

1. A shell assembly of a terminal, characterized in that it comprises: Middle frame; an electro-acoustic component, the electro-acoustic component is arranged on the middle frame, and the electro-acoustic component has a sound transmission hole; and A decorative part, the decorative part is opposite to the sound transmission hole, and the decorative part is screwed to the electro-acoustic assembly. 2 . The housing assembly of the terminal according to claim 1 , wherein an installation hole is provided on the middle frame, and at least part of the electro-acoustic component is arranged in the installation hole. 3 . 3 . The housing assembly of the terminal according to claim 2 , wherein at least part of the decoration part is located in the installation hole. 4 . 4. The housing assembly of the terminal according to claim 1, wherein the electro-acoustic assembly is a receiver assembly, and the receiver assembly includes: bracket; A sealing plate, the sealing plate is arranged on the bracket, the sound transmission hole is arranged on the sealing plate, the decorative part is located on the side of the sealing plate away from the bracket, the decorative part and At least one of the bracket and the sealing plate is threaded; A vibrating membrane, the vibrating membrane is arranged on the sealing plate to cover the sound transmission hole. 5 . The housing assembly of the terminal according to claim 4 , wherein the sealing plate is made of magnetically conductive material. 6 . 6. The housing assembly of the terminal according to claim 1, wherein the electro-acoustic assembly is a speaker assembly, and the speaker assembly includes: speaker; The sound transmission part is arranged on the speaker, the sound transmission hole is arranged on the sound transmission part, and the decorative part is screwed to the sound transmission part. 7. The housing assembly of the terminal according to claim 1, wherein the electro-acoustic assembly is a microphone assembly, and the microphone assembly includes: microphone; A shielding case, the shielding case is arranged on the microphone, the sound transmission hole is arranged on the shielding case, and the decorative part is screwed to the shielding case. 8. The housing assembly of the terminal according to claim 1, wherein the decorative part comprises: metal net; Flanging, the flanging is arranged at the edge of the metal mesh, and the flanging is screwed to the electroacoustic component. 9. The housing assembly of the terminal according to claim 1, wherein the cover plate of the housing assembly is provided on a side of the decorative part away from the electro-acoustic assembly, and the cover plate is provided with There are sound outlet holes corresponding to the sound outlet holes of the decoration. 10 . The housing assembly of the terminal according to claim 9 , wherein the cover plate is connected to the decorative part through a double-sided adhesive. 11 . 11 . The housing assembly of the terminal according to claim 9 , wherein the cover plate is connected to the decorative part by dispensing glue. 12. A terminal, comprising the housing assembly of the terminal according to any one of claims 1-11.