CN109413246B

CN109413246B - Shell assembly and electronic equipment

Info

Publication number: CN109413246B
Application number: CN201811246593.4A
Authority: CN
Inventors: 邱康; 胡志勤; 杨璟; 张永发; 徐常灿
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2018-10-24
Filing date: 2018-10-24
Publication date: 2021-03-23
Anticipated expiration: 2038-10-24
Also published as: CN109413246A

Abstract

The embodiment of the application provides a shell assembly and electronic equipment, the shell assembly is applied to electronic equipment, the shell assembly includes the upper cover, the upper cover includes base plate portion and bulge. The base plate part is positioned in the electronic equipment and comprises an accommodating space which is used for accommodating a telephone receiver; the bulge part extends from the substrate part to the display surface of the electronic equipment, and is provided with a sound outlet; the sound outlet is communicated with the accommodating space through a sound channel, the sound channel comprises a first sub-channel and a second sub-channel which are communicated, the first sub-channel extends along a first direction, the second sub-channel extends along a second direction, and the directions of the first direction and the second direction are different. The high screen ratio can be realized, and the sound emitting effect of the telephone receiver can be ensured.

Description

Shell assembly and electronic equipment

Technical Field

The present disclosure relates to electronic devices, and particularly to a housing assembly and an electronic device.

Background

With the development of electronic equipment technology, electronic equipment with a high screen ratio is more and more popular, can display more contents, and can be better held by a user. The electronic equipment with higher screen occupation ratio has less reserved non-display area, the sound outlet holes of the telephone receivers need to be reserved in the non-display area on the front face of the electronic equipment, and the sound outlet effect of the telephone receivers is influenced.

Disclosure of Invention

The embodiment of the application provides a casing subassembly and electronic equipment, can obtain better receiver effect of making a sound in high screen accounts for than electronic equipment.

The embodiment of the application provides a casing subassembly, it is applied to electronic equipment, casing subassembly includes the upper cover, the upper cover includes:

the base plate part is positioned in the electronic equipment and comprises an accommodating space which is used for accommodating a telephone receiver;

the bulge, base plate portion orientation the electronic equipment display surface extends and forms the bulge, be equipped with the phonate hole on the bulge, the phonate hole pass through the sound passageway with accommodation space intercommunication, the sound passageway is including the first subchannel and the second subchannel of intercommunication, first subchannel extends along the first direction, the second subchannel extends along the second direction, the first direction with the direction of second direction is different.

The embodiment of the application further provides an electronic device, which comprises a shell assembly and a receiver, wherein the shell assembly is as described above, and the receiver is located in the accommodating space.

In the case assembly and the electronic device provided by the embodiment of the application, the accommodating space for accommodating the receiver is communicated with the sound outlet through the sound channel, and the sound channel comprises a first sub-channel and a second sub-channel in two directions. In order to improve the screen occupation ratio of the electronic equipment, the sound outlet of the telephone receiver is arranged at the top of the electronic equipment, the sound outlet and the telephone receiver cannot be arranged right opposite to each other, and the audio information of the telephone receiver is conducted out from the sound outlet through the sound channel, so that the high screen occupation ratio can be realized, and the sound outlet effect of the telephone receiver can be ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a housing assembly of an electronic device according to an embodiment of the present disclosure.

Fig. 4 is a sectional view of the housing assembly a-a' of fig. 3.

Fig. 5 is a partially assembled schematic view of an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of an upper cover of an electronic device according to an embodiment of the present application.

Fig. 7 is another schematic structural diagram of an upper cover of an electronic device according to an embodiment of the present application.

Fig. 8 is another schematic structural diagram of a housing assembly of an electronic device according to an embodiment of the present disclosure.

Fig. 9 is a partially exploded schematic view of an electronic device according to an embodiment of the present application.

Fig. 10 is a partially exploded schematic view of an electronic device according to an embodiment of the present application.

Fig. 11 is a block diagram schematically illustrating a module of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a shell assembly and electronic equipment. The housing assembly and the electronic device will be described in detail below. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an audio playing device, a video playing device, or other devices.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. In this embodiment, the electronic device 100 includes a display screen 10, a bezel 20, a circuit board 30, a battery 40, and a rear cover (not shown).

The display screen 10 and the rear cover are located on two opposite sides of the electronic device 100, the electronic device further includes a middle plate, the frame 20 is disposed around the middle plate, and the frame 20 and the middle plate form a middle frame of the electronic device 100. The middle plate and the frame 20 respectively form a receiving cavity at two sides of the middle plate, wherein one receiving cavity receives the display screen 10, and the other receiving cavity receives the battery 40 and other electronic components or functional modules of the electronic device 100. The display screen 10 forms a display surface of the electronic device 100, and is used for displaying information such as images and texts. The Display screen 10 may be a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.

In some embodiments, a glass cover plate may be disposed over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.

In some embodiments, the display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs a display function of the display screen 10 for displaying information such as images and texts. The non-display area 12 does not display information. The non-display area 12 may be used to set a camera hole, a receiver sound outlet hole 51, a proximity sensor hole, and the like. In some embodiments, the non-display area 12 may include at least one area located on the peripheral side of the display area 11.

Referring to fig. 2, fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present disclosure. In this embodiment, the display screen 10 may be a higher screen. The display screen 10 is provided with a non-display area 12 in the middle of the top, and a sound outlet 51 of a receiver is arranged in the non-display area 12. At this time, the display screen 10 may display information almost in a full screen, so that the electronic apparatus 100 has a large screen occupation ratio. At this time, functional modules such as a camera and a proximity sensor in the electronic device 100 may be hidden under the display screen 10, or may be disposed in the non-display area 12 in the middle of the top of the display screen 10, and the fingerprint identification module of the electronic device 100 may be disposed on the back of the electronic device 100.

The circuit board 30 is mounted in the receiving cavity. The circuit board 30 may be a motherboard of the electronic device 100. The circuit board 30 is provided with a grounding point to realize grounding of the circuit board 30. One or more of a motor, a microphone, a speaker, a receiver 50, an earphone interface, a universal serial bus interface (USB interface), a camera, a proximity sensor, an ambient light sensor, a gyroscope, and a processor may be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30.

The back cover is used to form the outer contour of the electronic device 100. The rear cover may be integrally formed. In the forming process of the rear cover, structures such as a rear camera hole and a fingerprint identification module mounting hole can be formed on the rear cover. The display screen 10 and the rear cover are located on opposite sides of the electronic device 100, and the bezel 20 is located between the rear cover and the display screen, while the bezel 20 surrounds the display screen 10 and the rear cover.

The electronic device 100 further includes a cover plate covering the display screen 10, wherein a gap is formed at a top of the cover plate, and the display screen 10 does not display content corresponding to the gap, and therefore, an area corresponding to the gap is the non-display area 12. A sound output port 51 of the receiver 50 is provided in the non-display area 12. One or two or more of the camera, the distance sensor and the light sensor of the electronic device 100 are also arranged in the gap corresponding non-display area 12.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a housing assembly of an electronic device according to an embodiment of the present disclosure, and fig. 4 is a sectional view of the housing assembly in a direction of a-a' in fig. 3. The housing assembly includes an upper cover 60, and the upper cover 60 includes a base plate portion 610 and a projection portion 620.

The substrate portion 610 is located in the electronic device, and the substrate portion 610 includes a receiving space 611, and the receiving space 611 is used for receiving the receiver 50.

The protrusion 620 is formed to extend from the substrate portion 610 toward the display surface of the electronic device, and the protrusion 620 is provided with a sound outlet 621.

Wherein the sound outlet 621 communicates with the accommodating space 611 through the sound channel 70, the sound channel 70 includes a first sub-channel 710 and a second sub-channel 720 communicating with each other, the first sub-channel 710 extends in a first direction, the second sub-channel 720 extends in a second direction, and the first direction and the second direction are different.

The receiving space 611 receiving the receiver 50 communicates with the sound outlet 621 through the sound channel 70, and the sound channel 70 includes a first sub-channel 710 and a second sub-channel 720 in two directions. In order to improve the screen occupation ratio of the electronic device, the sound outlet 621 of the receiver 50 is disposed at the top of the electronic device, the sound outlet 621 and the receiver 50 cannot be disposed opposite to each other, and the audio information of the receiver 50 is transmitted from the sound outlet 621 through the sound channel 70, so that not only can a high screen occupation ratio be realized, but also the sound outlet effect of the receiver 50 can be ensured.

It should be noted that, a plurality of functional devices, such as a front camera, a light sensor, etc., may be disposed in the electronic device at positions corresponding to the sound outlet 621, and therefore, in order to avoid these functional devices, the receiver is disposed at a distance from the sound outlet 621, and therefore the sound channel 70 is required to conduct the sound of the receiver 50.

With continued reference to fig. 2 and 3, the housing element 210 includes a top side 211 and a bottom side 212 that are oppositely disposed, and the top side 211 and the bottom side 212 can be used as the top side 211 and the bottom side 212 of the electronic device. The sound outlet hole 621 is disposed adjacent to the top edge 211 of the housing assembly 210, and the receiving space 611 is disposed spaced apart from the top edge 211. The sound outlet 621 is disposed adjacent to the top edge 211 of the housing assembly 210, and it is also understood that the sound outlet 621 is disposed at a top position on the front surface of the electronic device, such that a high screen ratio can be obtained. The sound outlet 621 is disposed at the top end, and the corresponding accommodating space 611 for accommodating the receiver 50 cannot face the sound outlet 621 inside the electronic device due to space limitation. The receiving space 611 is spaced apart from the top side 211, and a camera, a light sensor, a proximity sensor, etc. may be disposed between the receiving space 611 and the top side 211. The receiver 50 in the receiving space 611 is arranged to be offset from the sound outlet 621 in projection on the plane where the sound outlet 621 is located. At this time, it is necessary to provide at least two directions of the sound passages 70 to conduct the sound in the accommodating space 611 to the sound outlet hole 621.

Where the housing assembly 210 includes a middle frame, the top and

bottom edges

211, 212 of the housing assembly 210 may be understood as the top and

bottom edges

211, 212 of the middle frame.

In some embodiments, the top edge 211 extends in a first direction, the first sub-channel 710 is located within the protrusion 620, and the second sub-channel 720 extends from the receiving space 611 to the first sub-channel 710.

The sound passage 70 is disposed in the first direction from the sound outlet hole 621 and then enters the accommodating space 611. Specifically, the first sub-passage 710 is disposed within the protrusion 620 and parallel to the top edge 211, and the sound outlet 621 communicates with the first sub-passage 710. The second sub-passage 720 extends from the first sub-passage 710 into the receiving space 611. The second sub-channel 720 is at an angle, such as between 60 degrees and 120 degrees, or 90 degrees, with respect to the first sub-channel 710. I.e., the second sub-channel 720 is perpendicular to the first sub-channel 710.

With reference to fig. 5 to 7, fig. 5 is a partial assembly schematic view of an electronic device according to an embodiment of the present disclosure, fig. 6 is a schematic structural view of an upper cover of an electronic device according to an embodiment of the present disclosure, and fig. 7 is another schematic structural view of an upper cover of an electronic device according to an embodiment of the present disclosure. Fig. 6 and 7 are diagrams of the upper cover at different angles. The housing assembly 210 further includes a back cover 80, the protrusion 620 having a groove 627 facing the first side 625 of the back cover 80, the back cover 80 covering the groove 627, and the first sub-passage 710 formed for the back cover 80 covering the groove 627.

The first side 625 of the protrusion 620 facing the back cover 80 has a groove 627, the second side 626 of the protrusion 620 facing the display surface of the electronic device has a sound outlet 621, and the first side 625 and the second side 626 are perpendicular. The groove 627 of the first side 625 is communicated with the sound outlet hole 621 of the second side 626, for example, the groove 627 of the first side 625 has an opening corresponding to the sound outlet hole 621, and the groove 627 is communicated with the sound outlet hole 621 through the opening. The rear cover 80 covers the groove 627 of the protrusion 620, and thus, the groove 627 and the rear cover 80 covering the groove 627 may form the first sub-channel 710 of the sound channel 70.

In some embodiments, the protrusion 620 includes a groove bottom and two groove sides forming the groove 627, and the back cover 80 is sealingly connected to the top ends of the two groove sides.

The rear cover 80 seals the groove 627 such that the acoustic path 70 is formed, and the loss of acoustic information in the acoustic path 70 formed by the groove 627 is prevented.

In some embodiments, the rear cap 80 includes a curved first side 810, the first side 810 overlying a first side 625, the first side 625 including first and second side edges 6251, 6252 on opposite sides, each of the first and second side edges 6251, 6252 being in sealing engagement with the first side 810, the groove 627 being located between the first and second side edges 6251, 6252.

The first edge 810 covering the recess 627 is curved such that the sound passage 70 formed by the first edge 810 and the protrusion includes not only the space inside the recess 627 but also a curved space, so that a larger space of the sound passage 70 can be formed to facilitate sound transmission.

In other embodiments, a hole is formed in the protrusion 620, and one end of the hole is connected to the sound hole 621 and the other end is connected to the accommodating space 611.

Referring to fig. 2 and 8, fig. 8 is another schematic structural diagram of a housing assembly of an electronic device according to an embodiment of the present disclosure. The top edge 211 extends in a first direction, the second sub-passage 720 extends from the protrusion 620 into the base plate portion 610, and the first sub-passage 710 extends from the receiving space 611 to the second sub-passage 720.

The sound passage 70 is first disposed in the second direction from the sound outlet hole 621 and then enters the accommodating space 611. Specifically, the second sub-channel 720 is communicated with the sound outlet, and the second sub-channel 720 is at an angle with the top edge 211, such as between 60 degrees and 120 degrees, or 90 degrees. I.e., second subchannel 720 is perpendicular to top edge 211. First sub-channel 710 is disposed within base plate portion 610 and is disposed parallel to top edge 211. The first sub-passage 710 extends from the second sub-passage 720 into the receiving space 611. The second sub-channel 720 may be disposed in the protrusion 620, or may be partially disposed in the protrusion 620 and partially disposed in the base plate 610.

Referring to fig. 9, fig. 9 is a partially exploded schematic view of an electronic device according to an embodiment of the disclosure. The electronic device specifically includes a cover plate 15, a display screen 10, an upper cover, and a receiver 50. In some embodiments, the electronic device may further include a polarizer 16 disposed between the cover 15 and the display screen 10, although the polarizer 16 may not be disposed if desired. Wherein the upper cover includes a base plate portion 610, a protrusion portion 620, and a sound outlet port deco 230. The cover plate 15 may be a special-shaped cover plate, and the top of the cover plate 15 has a notch corresponding to the sound outlet of the receiver.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a housing assembly of an electronic device according to an embodiment of the present disclosure. The substrate part 610 further includes a first sidewall 631 forming a periphery of the receiving space 611, the first sidewall 631 being stepped, the first sidewall 631 including a first step protrusion 633, and the electronic apparatus further including a first sealing layer 640, the first sealing layer 640 being disposed on the first step protrusion 633 and covering the receiving space 611.

The stepped side walls of the receiving space 611, and the first sealing layer 640, all provide good conduction of the acoustic signal, minimizing the loss of the acoustic signal within the receiving space 611.

In some embodiments, the base plate portion 610 further includes a second sidewall 635 forming a side of the second sub-channel 720, the second sidewall 635 is stepped, the second sidewall 635 includes a second step projection 637, and the first sealing layer 640 is further disposed on the second step projection 637 and covers the second sub-channel 720.

The stepped side walls of the second sub-passage 720, and the first sealing layer 640, all function to conduct acoustic signals well, minimizing acoustic signal loss within the acoustic passage 70.

In some embodiments, the electronic device further comprises a sound hole decoration 230. The base plate portion 610 may be a metal member, the protruding portion 620 may be a plastic member, and the sound hole decoration 230 may also be a plastic member.

In some embodiments, the housing assembly 210 further includes a second sealing layer 650, the second sealing layer 650 covering the first sealing layer 640, the second sealing layer 650 having a larger area than the first sealing layer 640.

The double-layer sealing layer can reduce the loss of sound signals to the maximum extent. The first sealing layer 640 may be a soft sealing layer, such as silicon gel. The second sealant 650 may employ a hard sealant such as plastic, resin, or the like. Wherein the plastic may be polyethylene terephthalate (PET). Wherein an outer surface of the first sealing layer 640 is substantially flush with an outer surface of the mesa portion 610, and the second sealing layer 650 covers the outer surface of the first sealing layer 640 and the outer surface of the mesa portion 610. The edges of first sealant layer 640 are connected to first sidewall 631 and second sidewall 635 and second sealant layer 650 covers the connection of first sealant layer 640 to first sidewall 631 and second sidewall 635.

Wherein, the bottom wall of the accommodating space 611 may be the substrate portion 610, and the sidewall of the accommodating space 611 is hermetically connected with the bottom wall. For example, a groove 627 is dug in the substrate portion 610, a bottom wall of the groove 627 is a bottom wall of the accommodation space 611, a side wall of the groove 627 is a side wall of the accommodation space 611, and then the groove 627 is covered with the first sealing layer 640, thereby forming the accommodation space 611.

In some embodiments, the protrusion 620 may be provided with a second groove toward the side of the receiving space 611, and then an end of the first sealing layer 640 toward the protrusion 620 has a first protrusion covering the second groove, thereby forming a first sub-channel. The second sealing layer 650 has a second protrusion corresponding to the first protrusion, and the second protrusion covers the first protrusion, thereby obtaining a better sealing effect.

Referring to fig. 11, fig. 11 is a block diagram illustrating an electronic device according to an embodiment of the present disclosure. The electronic device 100 may include control circuitry, which may include storage and processing circuitry 61. The storage and processing circuit 61 may be a memory, such as a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., a static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. The processing circuitry in the storage and processing circuitry 61 may be used to control the operation of the electronic device 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

The storage and processing circuitry 61 may be used to run software in the electronic device 100, such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, and so forth. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 100, and the like, without limitation of embodiments of the present application.

The electronic device 100 may also include input-output circuitry 62. The input-output circuit 62 may be used to enable the electronic device 100 to input and output data, i.e., to allow the electronic device 100 to receive data from external devices and also to allow the electronic device 100 to output data from the electronic device 100 to external devices. The input-output circuit 62 may further include a sensor 63. The sensors 63 may include ambient light sensors, optical and capacitive based proximity sensors, touch sensors (e.g., optical based touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, and other sensors, among others.

Input-output circuitry 62 may also include one or more displays, such as display 64. The display 64 may include one or a combination of liquid crystal displays, organic light emitting diode displays, electronic ink displays, plasma displays, displays using other display technologies. The display 64 may include an array of touch sensors (i.e., the display 64 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

Electronic device 100 may also include audio component 65. The audio component 65 may be used to provide audio input and output functionality for the electronic device 100. Audio components 65 in electronic device 100 may include speakers, microphones, buzzers, tone generators, and other components for generating and detecting sound.

The communication circuit 66 may be used to provide the electronic device 100 with the ability to communicate with external devices. The communication circuitry 66 may include analog and digital input-output interface circuitry, and wireless communication circuitry based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 66 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 66 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuit 66 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 66 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and the like.

The electronic device 100 may further include a battery, power management circuitry, and other input-output units 67. The input-output unit 67 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, etc.

A user may input commands through input-output circuitry 62 to control the operation of electronic device 100, and may use output data of input-output circuitry 62 to enable receipt of status information and other outputs from electronic device 100.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The housing assembly and the electronic device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the descriptions of the above embodiments are only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The utility model provides a shell assembly, is applied to electronic equipment, its characterized in that, shell assembly includes back lid and upper cover, back lid set up in the upper cover deviates from apron one side, the upper cover includes:

the protruding part is used for installing the cover plate, extends from the substrate part to the display surface of the electronic equipment and is formed, a groove is formed in the protruding part towards the first side of the rear cover, the protruding part comprises a groove bottom and two groove side edges, the groove bottom and the two groove side edges form the groove, the rear cover covers the groove and is connected with the top ends of the two groove side edges in a sealing mode, the protruding part also comprises a second side towards the cover plate, the second side is perpendicular to the first side, a sound outlet is formed in the second side, and the sound outlet is communicated with the groove through an opening in the groove side edge;

the sound outlet is communicated with the accommodating space through a sound channel, the sound channel comprises a first sub-channel and a second sub-channel which are communicated, the first sub-channel extends along a first direction, the second sub-channel extends along a second direction, the directions of the first direction and the second direction are different, the first sub-channel is formed by the groove and the rear cover, and the groove side far away from the sound outlet in the two groove side faces is provided with the second sub-channel towards the accommodating space, so that a sound signal of the telephone receiver enters the second sub-channel from the accommodating space.

2. The housing assembly of claim 1 wherein said sound outlet aperture is disposed adjacent a top edge of said housing assembly, said receiving space being spaced from said top edge.

3. The housing assembly of claim 2 wherein said top edge extends in said first direction, said first sub-passage is located within said projection, and said second sub-passage extends from said receiving space to said first sub-passage.

4. The housing assembly of claim 3, wherein the first sub-channel is perpendicular to the second sub-channel.

5. The housing assembly of claim 1 wherein said back cover includes a first edge of an arc, said first edge overlying said first side, said first side including first and second sides on opposite sides, said first and second sides each sealingly connected to said first edge, said groove located between said first and second sides.

6. The housing assembly according to claim 1, wherein the base plate portion further includes a first side wall forming a periphery of the accommodation space, the first side wall being stepped, the first side wall including a first stepped protrusion, the electronic apparatus further including a first sealing layer provided on the first stepped protrusion and covering the accommodation space.

7. The housing assembly of claim 6 wherein the base plate portion further includes a second sidewall forming a side of the second sub-channel, the second sidewall being stepped, the second sidewall including a second stepped projection, the first sealing layer further disposed on the second stepped projection and covering the second sub-channel.

8. The housing assembly of claim 6 or 7, further comprising a second sealing layer overlying the first sealing layer, the second sealing layer having a larger area than the first sealing layer.

9. An electronic device comprising a housing assembly as claimed in any one of claims 1 to 8 and a receiver located in the receiving space.

10. The electronic device of claim 9, further comprising a cover plate located at the outermost layer of the electronic device, wherein the cover plate has a notch at the top, and the sound outlet of the protrusion is located in the notch.