Housing structure and electronic device

Abstract

The present application belongs to the technical field of electronic devices. Disclosed are a housing structure and an electronic device. The housing structure comprises a main body portion and a plurality of sound output holes, wherein the main body portion comprises a first side surface and a second side surface, which are arranged opposite each other; the plurality of sound output holes are disposed on the main body portion, and are in communication with the first side surface and the second side surface; and the plurality of sound output holes are configured to be in communication with a transition channel of a loudspeaker, at least some of the plurality of sound output holes are inclined holes, there is an included angle between an axis of each inclined hole and a first direction, and the first direction is a direction from the first side surface to the second side surface. In the present application, by means of the arrangement of the inclined holes, an airflow flowing in the transition channel can flow out more smoothly through the inclined holes, such that by means of changing the direction of the sound output holes, the sound output condition of the loudspeaker can be effectively improved, thereby reducing noise, and in turn improving the sound quality.

Description

Shell structure and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202410978661.5, filed on July 19, 2024, and entitled "Shell structure and electronic device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic devices, in particular to a shell structure and an electronic device. BACKGROUND

[0003] A loudspeaker, commonly known as a "speaker", is a very commonly used electroacoustic transducer, usually installed inside a sound-emitting electronic device (such as a mobile phone, a tablet computer, etc.). The loudspeaker includes a front cavity, and a transition channel is formed between the loudspeaker and the shell of the electronic device, which is in communication with the front cavity. The transition channel is in communication with a sound outlet hole on the electronic device.

[0004] When a user uses an electronic device at a high volume, the airflow in the loudspeaker front cavity flows too fast, which can cause turbulence. The turbulence can produce noise, and the direction of the transition channel of the loudspeaker and the sound outlet hole of the existing electronic device is not consistent, which can easily cause turbulence to intensify, generate vortexes, etc., further increasing the noise effect and affecting the user experience. SUMMARY

[0005] The present application provides a shell structure and an electronic device to solve the technical problem of relatively large noise in the prior art when an electronic device emits sound through a loudspeaker.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application provides a shell structure, comprising: a main body portion and a plurality of sound outlet holes;

[0008] The main body portion includes a first side and a second side, and the first side and the second side are oppositely arranged;

[0009] The plurality of sound outlet holes are arranged on the main body portion, and the plurality of sound outlet holes are in communication with the first side and the second side;

[0010] The plurality of sound outlet holes are used to communicate with the transition channel of the loudspeaker, and at least part of the plurality of sound outlet holes are inclined holes. The axis of the inclined hole has an included angle with the first direction, and the first direction is the direction from the first side to the second side.

[0011] By arranging the inclined holes, the sound emitted by the loudspeaker can be effectively improved without changing the structure of the loudspeaker and with little modification to the structure of the electronic device. That is, by changing the direction of the sound outlet hole, the sound emitted by the loudspeaker can be effectively improved, the noise can be reduced, the sound quality can be improved, and the user experience can be improved.

[0012] In some implementations, the shell structure further comprises one or more sound hole groups, each sound hole group comprising sound holes of the plurality of sound holes that cooperate with the same speaker.

[0013] The number of speakers arranged in the electronic device is more than one, and each speaker corresponds to a sound hole group, that is, a reasonable number of sound hole groups are arranged according to requirements.

[0014] In some implementations, the sound hole group comprises a target sound hole group, and all sound holes in the target sound hole group are inclined holes.

[0015] By arranging all sound holes in the target sound hole group as inclined holes, it is beneficial to reduce speaker sound noise and improve sound quality.

[0016] In some implementations, the angle between the axis of each inclined hole in the target sound hole group and the first direction is the same.

[0017] By arranging the same target sound hole group with the same angle of each sound hole, it is convenient for the production and manufacture of the shell structure.

[0018] In some implementations, along the second direction, the farther the inclined hole in the target sound hole group is from the cooperating speaker, the larger the angle between the axis of the inclined hole and the first direction, wherein the second direction is the arrangement direction of the inclined hole.

[0019] In order to better improve the flow of air when the speaker vibrates, it is found that the flow direction of the air at each sound hole is different, and by arranging the inclined angle of the inclined hole to gradually increase from the direction close to the speaker to the direction away from the speaker, it is beneficial to improve the flow of air when the speaker vibrates, and thus beneficial to reduce noise.

[0020] In some implementations, the shell structure further comprises a narrow slit sound hole, and the narrow slit sound hole is in communication with one sound hole group and a transition passage of the speaker cooperating with the sound hole group.

[0021] In this implementation, there are two modes of outputting sound of the speaker, one is a small volume earpiece mode, and the other is a large volume external mode. In the earpiece mode, the speaker is lowered in power to realize small volume sound, at this time, the user can hold the mobile phone and put the mobile phone close to the ear, and the user can hear the sound through the narrow slit sound hole; in the external mode, the speaker is increased in power to realize large volume sound, and the sound can be transmitted through the sound hole group.

[0022] In some implementations, the angle between the axis of the inclined hole and the first direction ranges from 0 to 60 degrees.

[0023] In the implementation, the shell structure can be manufactured and produced in combination with the structure size of the existing electronic device while meeting the smooth airflow through the inclined hole.

[0024] In some implementations, the shell structure is a middle frame; or the shell structure is a middle frame and a back shell.

[0025] Generally, the shell of the electronic device includes a screen, a middle frame and a back shell, and the sound outlet hole is generally arranged on the middle frame. When the shell structure is applied to the electronic device, the shell structure can be used as the middle frame. Of course, the structure can also be a structure composed of the middle frame and the back shell.

[0026] The second aspect of the present application provides an electronic device including one or more loudspeakers and the shell structure provided in any of the above technical solutions. The loudspeaker includes a front cavity, a back cavity and a transition channel.

[0027] According to the above technical solution, since the electronic device includes the shell structure, the electronic device at least has all the beneficial effects of the shell structure, which will not be described here.

[0028] In some implementations, the transition channel includes a channel first end and a channel second end. The channel first end is in communication with the front cavity, and the channel second end is in communication with at least part of the plurality of sound outlet holes.

[0029] That is, in the implementation, if the plurality of loudspeakers are included, the channel second end is in communication with the corresponding sound outlet hole; when one loudspeaker is included, the channel second end is in communication with all the sound outlet holes on the shell structure.

[0030] In some implementations, the sound outlet hole forms a first hole end on the first side surface, and forms a second hole end on the second side surface. In at least one direction, the offset direction of the second hole end relative to the first hole end is the same as the offset direction of the channel second end relative to the channel first end.

[0031] In the implementation, the inclined hole is arranged according to the offset of the channel first end and the channel second end of the transition channel, so as to reduce the sound noise of the loudspeaker and improve the sound quality.

[0032] In some implementations, the offset direction of the second hole end relative to the first hole end in the second direction is the same as the offset direction of the channel second end relative to the channel first end in the second direction, or the offset direction of the second hole end relative to the first hole end in the third direction is the same as the offset direction of the channel second end relative to the channel first end in the third direction. The second direction and the third direction are perpendicular to the first direction.

[0033] In this implementation, the offset of the tilted hole from the speaker transition channel in the second or third direction is the same. This facilitates the processing of the tilted hole while reducing speaker noise and improving sound quality.

[0034] In some implementations, the offset direction of the second hole end relative to the first hole end in the second direction is the same as the offset direction of the second end of the channel relative to the first end of the channel in the second direction, and the offset direction of the second hole end relative to the first hole end in the third direction is the same as the offset direction of the second end of the channel relative to the first end of the channel in the third direction, and both the second direction and the third direction are perpendicular to the first direction.

[0035] In this implementation, the tilted hole is offset from the speaker transition channel in both the second and third directions to further reduce speaker noise and improve sound quality. Attached Figure Description

[0036] Figure 1 is a block diagram of the existing related mobile phone processor, audio module, and speaker, receiver and microphone connections;

[0037] Figure 2 is a structural diagram of an existing related mobile phone;

[0038] Figure 3 is a front view schematic diagram of an existing related mobile phone;

[0039] Figure 4 is a cross-sectional view of the first speaker in Figure 3 along the X direction;

[0040] Figure 5 shows a schematic diagram of the cooperation between the first transition channel and the first sound outlet of the first loudspeaker;

[0041] Figure 6 is a cross-sectional view along direction AA in Figure 3;

[0042] Figure 7 is a cross-sectional view along the BB direction in Figure 3;

[0043] Figure 8 is a schematic diagram of the existing related second speaker's second transition channel and second sound outlet;

[0044] Figure 9 is a front view of Figure 8;

[0045] Figure 10 is a right-side view of Figure 8;

[0046] Figure 11 is a schematic diagram of the structure of a mobile phone provided in an embodiment of this application;

[0047] Figure 12 is a magnified view of part A in Figure 11;

[0048] Figure 13 is a partial structural schematic diagram of the mobile phone provided in an embodiment of this application;

[0049] Figure 14 is a schematic diagram of a transition channel cooperating with an inclined hole according to an embodiment of the present application;

[0050] Figure 15 is another schematic diagram of a transition channel cooperating with an inclined hole according to an embodiment of the present application;

[0051] Figure 16 is another schematic diagram of a transition channel cooperating with an inclined hole according to an embodiment of the present application;

[0052] Figure 17 is a schematic diagram of a part of a mobile phone according to an embodiment of the present application (showing the inclined hole inclined to the right);

[0053] Figure 18 is a schematic diagram of a part of a mobile phone according to an embodiment of the present application (showing the inclined hole inclined to the left);

[0054] Figure 19 is a schematic diagram of a transition channel cooperating with an inclined hole according to an embodiment of the present application (showing the inclined hole inclined downward);

[0055] Figure 20 is a schematic diagram of a transition channel cooperating with an inclined hole according to an embodiment of the present application (showing the inclined hole inclined upward);

[0056] Figure 21 is a schematic diagram of a mobile phone according to an embodiment of the present application;

[0057] Figure 22 is another schematic diagram of a mobile phone according to an embodiment of the present application;

[0058] Figure 23 shows a non-airflow area of a sound hole during simulation;

[0059] Figure 24 is a schematic diagram of a part of a mobile phone according to an embodiment of the present application (showing a narrow-slit sound hole).

[0060] Wherein, the meaning represented by each figure number is as follows: 1, mobile phone; 11, processor; 12, audio module; 13, loudspeaker; 14, internal memory; 15, microphone; 16, external structure; 161, screen; 162, rear shell; Related technologies: 13A, first loudspeaker; 13B, second loudspeaker; 13A1, first core; 13A2, first shell; 13A3, front cavity area; 13A4, rear cavity area; 13A5, first transition channel; 13B1, second core; 13B2, second shell; 13B3, front cavity space; 13B4, rear cavity space; 13B5, second transition channel; 163, middle frame; 164, first sound outlet; 165, second sound outlet; 166, sound outlet narrow slit; The present application: 131, transition channel; 132, front cavity; 263, shell structure; 264, sound outlet; 265, inclined hole; 266, first side; 267, second side; 268, straight hole; 269, sound outlet group; 2610, unflowing airflow area; 2611, narrow-slit sound outlet; 2612, channel second end; 2613, channel first end; 2614, first hole end; 2615, second hole end. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings. The embodiments described by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0062] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0063] In order to facilitate the clear description of the technical scheme of the present application, the terms "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that the terms "first", "second" and the like do not limit the quantity and execution order, and the terms "first", "second" and the like do not necessarily mean different.

[0064] In the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] In the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships; for example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0066] It should be noted that in the present application, the words "in an embodiment", "exemplarily", "for example" and the like are used to represent as an example, illustration or description. Any embodiment or design scheme described as "in an embodiment", "exemplarily", "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "in an embodiment", "exemplarily", "for example" and the like is intended to present the relevant concept in a specific way.

[0067] Before explaining the shell structure provided by the embodiments of the present application in detail, the prior art related and the application scenarios of the loudspeaker are described.

[0068] Some existing electronic devices, such as mobile phones, tablet computers, notebook computers, personal digital assistants (personal digital assistant, PDA for short), vehicle-mounted computers, televisions, smart wearable devices (such as smart watches, smart bracelets, smart head-mounted displays, smart glasses), smart home devices, etc., are all provided with loudspeakers.

[0069] The loudspeaker is a kind of transducer that converts electrical energy into sound energy. Specifically, it converts the electrical signal of an amplifier into mechanical vibration of a diaphragm, and then makes the surrounding air produce density changes to push the surrounding air to produce fluctuations, and finally forms audible sound. The specific working principle of the loudspeaker is as follows: when the loudspeaker receives an electrical signal, the internal coil will generate a magnetic field, which interacts with the permanent magnet to make the coil vibrate. The vibrating diaphragm (usually paper or plastic sheet) of the loudspeaker will also vibrate, pushing the surrounding air to produce fluctuations, and finally forming audible sound. The process of the loudspeaker converting an electrical signal into a sound signal relies on the force generated by electromagnetic induction and the vibration of the vibrating diaphragm, which can convert a varying current signal into a sound signal.

[0070] Please refer to FIG. 1-FIG. 10, the following example of a mobile phone 1, specific description of the use of the existing related speaker 13 scene.

[0071] Mobile phone 1 includes an external structure 16 and the processor 11, internal memory 14, antenna, communication module, audio module 12, sensor module, speaker 13 (including the first speaker 13A and the second speaker 13B) and microphone 15 and so on arranged in the external structure 16. The external structure 16 includes a screen 161 and a shell, the shell includes a middle frame 163 and a back shell 162, the screen 161 can be a flexible screen or a hard screen, along the thickness direction of the mobile phone 1, the screen 161, the middle frame 163 and the back shell 162 are fixed in turn and enclosed to form the external structure 16.

[0072] For the convenience of the following description, the length direction of the mobile phone 1 is defined as the X-axis direction, the width direction of the mobile phone 1 is defined as the Y-axis direction, and the thickness direction of the mobile phone 1 is defined as the Z-axis direction. The X-axis direction, Y-axis direction and Z-axis direction are perpendicular to each other. Along the X-axis direction, the two ends of the mobile phone 1 are defined as the top end and the bottom end respectively.

[0073] Please refer to FIG. 1, the block diagram of the connection of the processor 11, the audio module 12 and the first speaker 13A is shown. The audio module 12, the memory 14 and the processor 11 are connected, the audio module 12 is used for converting digital audio signal into analog audio signal output, also used for converting analog audio signal input into digital audio signal. The audio module 12 is connected with the first speaker 13A, the second speaker 13B and the microphone 15, for example, the audio module 12 converts digital audio signal into analog audio signal output, and then plays through the speaker 13.

[0074] The microphone 15, also known as "microphone", is used for converting sound signal into electric signal. When making a call or sending voice information, the user can make a sound by approaching the microphone 15 with the mouth, and input the sound signal into the microphone 15.

[0075] The first speaker 13A and the second speaker 13B are used for converting audio electric signal into sound signal. Please refer to FIG. 2 and FIG. 3, the schematic diagram of the mobile phone 1 is shown, and the first speaker 13A and the second speaker 13B are shown, the first speaker 13A is close to the bottom of the mobile phone 1, and the second speaker 13B is close to the top of the mobile phone 1.

[0076] Regarding the first speaker 13A, please refer to FIG. 2 and FIG. 3, a first sound outlet hole 164 is arranged at the bottom of the shell of the mobile phone 1. A first transition channel 13A5 is formed in the first speaker 13A, and the first transition channel 13A5 is in communication with the first sound outlet hole 164. The sound generated by the vibration of the first speaker 13A is output by the first transition channel, and then further output to the outside of the mobile phone 1 by the first sound outlet hole 164. The first speaker 13A can produce sound in the external mode of the mobile phone 1.

[0077] Regarding the structure of the first speaker 13A, please refer to FIG. 4, the first speaker 13A includes a first shell 13A2 and a first core 13A1, the first shell 13A2 is used to support and fix the first core 13A1, the first core 13A1 is located in the first shell 13A2, and the first shell 13A2 cooperates with the first core 13A1 to enclose a front cavity area 13A3 and a rear cavity area 13A4, which form the front cavity and the rear cavity of the first speaker 13A, respectively. The main function of the rear cavity of the speaker is to prevent the short circuit of the low-frequency sound in the speaker, so that the low-frequency sound has force and makes people feel that the sound is round. The main function of the front cavity of the speaker is to adjust the frequency response, and by reasonably designing the volume, shape and structure of the front cavity, the mid-high frequency response of the speaker can be optimized to achieve the desired acoustic performance. The first speaker 13A forms a first transition channel 13A5, which connects the front cavity area 13A3 and the first sound outlet hole 164 of the first speaker 13A. Please refer to FIG. 3, the first sound outlet hole 164 is a straight hole, that is, the axis of the first sound outlet hole 164 is parallel to the X axis in FIG. 3; please refer to FIG. 4, which is a sectional view of the first speaker 13A along the X axis direction in FIG. 3, the side of the first transition channel 13A5 close to the front cavity area 13A3 is inclined upward to the side far away from the front cavity area 13A3, so when the first speaker 13A works, the flow direction of the airflow in the first transition channel 13A5 and the first sound outlet hole 164 is different.

[0078] When the user uses the first speaker 13A of the mobile phone 1 in the external mode at a large volume, the airflow in the front cavity of the first speaker 13A flows too fast to cause turbulence, which produces noise, and the direction of the first transition channel 13A5 of the first speaker 13A and the first sound outlet hole 164 is inconsistent, which easily causes turbulence to be intensified and vortex to be formed, etc., so that the noise effect is further increased, which affects the user experience. Please refer to FIG. 5, the arrow b with solid line represents the airflow flowing in the first transition channel 13A5, and the arrow a with dotted line represents the airflow flowing in the first sound outlet hole 164. From the direction represented by the arrow, it can be seen that the flow directions of the airflows in the first transition channel 13A5 and the first sound outlet hole 164 are different.

[0079] As to the second speaker 13B, a second sound outlet hole 165 is arranged on the top of the external structure 16, and a sound outlet slit 166 is arranged on the screen side of the mobile phone 1. Please refer to FIG. 2 and FIG. 3, which show the sound outlet slit 166. The second speaker 13B and the external structure 16 form a second transition channel 13B5, and the second sound outlet hole 165 and the sound outlet slit 166 are connected with the second transition channel 13B5. Please refer to FIG. 6, which is a partial structure diagram of the A-A sectional view of FIG. 3. It can be seen from FIG. 6 that the second sound outlet hole 165 and the sound outlet slit 166 are connected with the second transition channel 13B5. The sound generated by the vibration of the second speaker 13B is output by the second transition channel 13B5, and then output to the outside of the mobile phone 1 by the second sound outlet hole 165 and the sound outlet slit 166.

[0080] The second speaker 13B has two modes of outputting sound, one is a small volume earpiece mode, and the other is a large volume external playing mode. In the earpiece mode, the second speaker 13B is powered down to achieve small volume sound, at this time, the user can hold the mobile phone 1 and put it close to the ear, and the user can hear the sound through the sound outlet slit 166; in the external playing mode, the second speaker 13B is powered up to achieve large volume sound.

[0081] As to the structure of the second speaker 13B, please refer to FIG. 7, which is a B-B sectional view of FIG. 3. FIG. 7 shows the second speaker 13B. The second speaker 13B includes a second shell 13B2 and a second inner core 13B1. The second shell 13B2 is used to support and fix the second inner core 13B1. The second shell 13B2 and the second inner core 13B1 form a back cavity space 13B4 of the second speaker 13B, i.e. the back cavity of the second speaker 13B. The second inner core 13B1 and the screen 161 and the middle frame 163 of the mobile phone 1 form a front cavity space 13B3 of the second speaker 13B, i.e. the front cavity of the second speaker 13B. The second transition channel 13B5 is formed in the external structure 16 of the mobile phone 1. The second sound outlet hole 165 is connected with the front cavity space 13B3 through the second transition channel 13B5, and the sound outlet slit 166 is connected with the front cavity space 13B3 through the second transition channel 13B5. When the second inner core 13B1 is powered on, it can push the air in the front cavity space 13B3 to vibrate to form sound, thereby converting audio electrical signals into sound signals. The sound can be transmitted to the outside of the mobile phone 1 through the second transition channel 13B5, the second sound outlet hole 165 and the sound outlet slit 166.

[0082] Please refer to FIG. 8, which shows the second inner core 13B1, the front cavity space 13B3, the second transition channel 13B5 and the second sound outlet hole 165. FIG. 9 is a front view of FIG. 8, and FIG. 10 is a right view of FIG. 8.

[0083] In order to avoid the camera, circuit board and other electrical components in the mobile phone 1, please refer to Figure 9, the front cavity space 13B3 and the second sound hole 165 are arranged in the Y-axis direction in the figure, the second sound hole 165 is a straight hole, and the axis of the second sound hole 165 is parallel to the X-axis direction. Please refer to Figure 10, the second sound hole 165 is shown in the Z-axis direction close to the lower side of the second transition channel 13B5.

[0084] Please refer to Figures 9 and 10, which show the flow of air in the second transition channel 13B5 and the second sound hole 165 when the second speaker 13B is sounding. The arrow b with a solid line represents the flow of air in the second transition channel 13B5, and the arrow a with a dashed line represents the flow of air in the second sound hole 165. From the direction of the arrow in Figures 9 and 10, it can be seen that the flow directions of the second transition channel 13B5 and the second sound hole 165 are different.

[0085] When the user uses the second speaker 13B of the mobile phone 1 in the external mode with a large volume, the fast flow rate of the air in the front cavity of the second speaker 13B can cause turbulence, which can produce noise. Referring to Figures 9 and 10, because the flow directions of the second transition channel 13B5 and the second sound hole 165 are different, turbulence can be intensified and vortexes can be formed, which can further increase the noise effect and affect the user experience.

[0086] The present application aims to change the direction of the sound hole on the electronic device so that the flow direction of the air in the sound hole is consistent with the flow direction of the air in the transition channel, so that the air in the transition channel flows smoothly through the sound hole and out of the sound hole, thereby improving the sound output of the speaker 13 at a large volume and reducing noise.

[0087] The shell structure provided by the embodiment of the present application will be explained in detail below with reference to the accompanying drawings.

[0088] The shell structure 263 provided by the embodiment of the present application includes a main body and a plurality of sound holes 264, the plurality of sound holes 264 are arranged on the main body, and the sound hole 264 is used to cooperate with the transition channel 131 of the speaker 13.

[0089] The shell structure 263 is a component provided with a sound hole 264 cooperating with the speaker 13, which is usually part of the shell of the electronic device or the entire shell of the electronic device. Please refer to Figure 11, which shows a mobile phone 1 and a schematic diagram when the shell structure 263 is applied to the mobile phone.

[0090] Regarding the main body, it can be understood that the structure of the shell structure 263 other than the sound hole 264 is referred to as the main body.

[0091] The speaker 13 includes an outer shell and a core. As to the transition channel 131 of the speaker 13, as introduced above, the transition channel 131 can be formed on the outer shell of the speaker 13, as in the first speaker 13A above; or the transition channel 131 can be formed in the shell of the electronic device and communicate with the front cavity of the speaker 13, as in the second speaker 13B above; or the transition channel 131 can be formed in the outer shell of the speaker 13 and communicate with the front cavity of the speaker 13, and the transition channel 131 can be formed in the shell of the electronic device, and the transition channel 131 formed in the outer shell of the speaker 13 and the transition channel 131 formed in the shell of the electronic device form the transition channel 131.

[0092] The sound hole 264 cooperates with the transition channel 131 of the speaker 13, that is, when the speaker 13 is working, the airflow in the front cavity of the speaker 13 flows to the sound hole 264 through the transition channel 131, and then flows out through the sound hole 264, so as to transmit sound waves.

[0093] Please refer to FIG. 11, which shows the speaker 13 and the transition channel 131 cooperating with the speaker 13, and shows that the transition channel 131 communicates with the sound hole 264.

[0094] Please refer to FIG. 12, which is a partial enlarged view of A in FIG. 11. The sound hole 264 is arranged on the main body, specifically, the main body includes a first side 266 and a second side 267, the first side 266 and the second side 267 are oppositely arranged, the sound hole 264 is arranged on the main body and communicates with the first side 266 and the second side 267, the first direction is from the first side 266 to the second side 267, at least part of the plurality of sound holes 264 is an inclined hole 265, the axis of the inclined hole 265 has an angle a with the first direction, as shown in FIG. 12, the first direction is parallel to the direction of the X axis in FIG. 12, and the axis of the inclined hole 265 has the angle a with the first direction.

[0095] As to the angle a between the first direction and the axis of the inclined hole 265, the value range of the angle a is 0 < a < 90°, that is, the axis of the inclined hole 265 is not parallel to the first direction. The size of the angle a can be reasonably set according to the transition channel 131. For example, the angle between the axis of the inclined hole and the first direction ranges from 0° to 60°, so as to realize that the airflow flowing out through the inclined hole 265 is smoother, and the structure size of the existing electronic device can be considered to realize the processing and production.

[0096] In this embodiment, the axis of the inclined hole 265 has an angle with the first direction, so as to improve the noise of the speaker 13. That is, by arranging the inclined hole 265, the airflow flowing through the transition channel 131 is smoother when the speaker 13 is working, so as to improve the sound emission of the speaker 13 and reduce the noise.

[0097] In this embodiment, the inclined hole 265 is arranged to improve the noise of the loudspeaker 13, so that the sound of the loudspeaker 13 can be effectively improved without changing the structure of the loudspeaker 13 and with less structural changes to the electronic device, that is, by changing the direction of the sound hole, the sound of the loudspeaker can be effectively improved, the noise is reduced, the sound quality is improved, and the user experience is improved.

[0098] In this embodiment, at least part of the sound holes 264 in the plurality of sound holes 264 are inclined holes 265. Please refer to FIG. 13, which shows that among the sound holes 264 connected to the same transition channel 131, part of the sound holes 264 are inclined holes 265, and part of the sound holes 264 are straight holes 268. Here, the straight hole 268 refers to a sound hole 264 whose axis is parallel to the first direction.

[0099] When part of the sound holes 264 connected to the same transition channel 131 are inclined holes 265, it is preferred that the sound holes 264 close to the loudspeaker 13 are inclined holes 265, and the sound holes 264 far from the loudspeaker 13 are straight holes 268. Please refer to FIG. 13, which shows the inclined hole 265 and the straight hole 268. The inclined hole 265 is closer to the loudspeaker 13 than the straight hole 268. In simulation, it is found that the flow rate in the sound hole 264 close to the loudspeaker 13 is greater than that in the sound hole 264 far from the loudspeaker 13. Therefore, by arranging at least the sound holes 264 close to the loudspeaker 13 as inclined holes 265, the sound of the loudspeaker 13 can be more effectively improved, and the noise can be reduced.

[0100] In this embodiment, the cross-sectional shape of the sound hole 264 is circular, or the cross-sectional shape of the sound hole 264 is elliptical.

[0101] As mentioned above, the axis of the inclined hole 265 forms an angle with the first direction to improve the noise of the loudspeaker 13. The inclination direction of the inclined hole 265 is described as follows:

[0102] The position of the transition channel 131 connecting the front cavity 132 of the loudspeaker 13 is referred to as the channel first end 2613, and the position of the transition channel 131 connecting the sound hole 264 is referred to as the channel second end 2612. The first side surface 266 is close to the transition channel 131, the hole formed by the inclined hole 265 on the first side surface 266 is referred to as the first hole end 2614, and the hole formed by the inclined hole 265 on the second side surface 267 is referred to as the second hole end 2615. In at least one direction, the offset direction of the second hole end 2615 relative to the first hole end 2614 is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613.

[0103] When the loudspeaker 13 vibrates, the front cavity 132 of the loudspeaker 13 generates airflow, the airflow flows from the channel first end 2613 to the channel second end 2612 through the transition channel 131, and then flows from the first hole end 2614 to the second hole end 2615 through the inclined hole 265. Since the offset direction of the second hole end 2615 relative to the first hole end 2614 is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613 at least in one direction, it is beneficial for the airflow in the transition channel 131 to flow out of the inclined hole 265 more smoothly, so as to improve the noise of the loudspeaker 13.

[0104] The second loudspeaker 13B is specifically explained above. The second loudspeaker 13B is specifically explained as follows: please refer to FIG. 14, which shows a schematic diagram of the transition channel 131 of the loudspeaker 13 and the inclined hole 265 on the shell structure 263. The direction indicated by the arrow Y in FIG. 14 is called the right side, and the direction away from the arrow Y is called the left side. In FIG. 14, since the channel second end 2612 is offset to the right relative to the channel first end 2613, the flow direction of the airflow in the transition channel 131 is from the left side to the right side, and the inclination direction of the inclined hole 265 is from the left side to the right side, that is, the second hole end 2615 is offset to the right relative to the first hole end 2614, and the flow direction of the airflow in the inclined hole 265 is from the left side to the right side, which is beneficial for the airflow in the transition channel 131 to flow out of the inclined hole 265 more smoothly, so as to improve the noise of the loudspeaker 13.

[0105] Here, it is to be noted that the dashed box in FIG. 14 represents the corresponding end, and the dashed box in other figures represents the corresponding end by analogy.

[0106] For the inclination direction of the inclined hole 265 being from the left side to the right side as described above, the inclination angle of the inclined hole 265 can be divided into the following three cases:

[0107] Case one:

[0108] Please refer to FIG. 14, in which the solid arrow b in FIG. 14 shows the flow direction of the airflow in the transition channel 131, and the dashed arrow a shows the flow direction of the airflow in the sound hole 264. At this time, the inclination angle of the inclined hole 265 can achieve a good effect of improving the sound of the loudspeaker 13, and slowing down the noise generated by the difference between the flow direction of the airflow in the transition channel 131 and the flow direction of the airflow in the sound hole 264.

[0109] Case two:

[0110] Please refer to Fig. 15, which shows a schematic diagram of the transition passage 131 of the speaker 13 cooperating with the inclined hole 265 on the housing structure 263. In Fig. 15, the solid arrow b shows the flow direction of the airflow in the transition passage 131, and the dashed arrow a shows the flow direction of the airflow in the sound outlet hole 264. In Fig. 15, the solid arrow b is not parallel to the dashed arrow a, and the angle between the solid arrow b and the Y direction in Fig. 15 is smaller than the angle between the dashed arrow a and the Y direction. The deflection angle of the inclined hole 265 with respect to the X axis is smaller than the deflection angle of the inclined hole 265 in Fig. 14. Although the effect of improving the sound emission of the speaker 13 is not as good as that in case one, compared with the prior art, the inclined hole 265 still has the effect of improving the sound emission of the speaker 13.

[0111] Case three:

[0112] Please refer to Fig. 16, which shows a schematic diagram of the transition passage 131 of the speaker 13 cooperating with the inclined hole 265 on the housing structure 263. In Fig. 16, the solid arrow b shows the flow direction of the airflow in the transition passage 131, and the dashed arrow a shows the flow direction of the airflow in the sound outlet hole 264. In Fig. 16, the solid arrow b is not parallel to the dashed arrow a, and the angle between the solid arrow b and the Y direction in Fig. 16 is larger than the angle between the dashed arrow a and the Y direction. The deflection angle of the inclined hole 265 with respect to the X axis is larger than the deflection angle of the inclined hole 265 in Fig. 14. Although the effect of improving the sound emission of the speaker 13 is not as good as that in case one, compared with the prior art, the inclined hole 265 still has the effect of improving the sound emission of the speaker 13.

[0113] It is to be noted that the arrows in Figs. 14-16 only show the flow direction of the airflow approximately.

[0114] It is to be noted that the arrows in Figs. 14-16 only show the flow direction of the airflow approximately.

[0115] Of course, for the second transition channel 13B5 of the second speaker 13B, the second hole end 2615 of the inclined hole 265 can also be offset upward in the Z-axis direction relative to the first hole end 2614, or the second hole end 2615 of the inclined hole 265 is offset not only in the Y-axis direction but also upward in the Z-axis direction relative to the first hole end 2614, that is, the second hole end 2615 of the inclined hole 265 is offset in two directions relative to the first hole end 2614, which facilitates smoother airflow in the transition channel 131 flowing out of the inclined hole 265.

[0116] The above describes the second speaker 13B that the offset direction of the second hole end 2615 relative to the first hole end 2614 is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613 in at least one direction to improve the sound production of the speaker 13. Next, the direction of the inclination of the inclined hole 265 on the shell structure 263 is further described in the scenario of different speakers 13 (different speakers 13 have different transition channels 131).

[0117] Before describing, the relative positions are defined, the first direction is defined as the X-axis direction in FIGS. 17-20, that is, the front-rear direction, the second direction is defined as the Y-axis direction in FIGS. 17-20, that is, the left-right direction, and the third direction is defined as the Z-axis direction in FIGS. 17-20, that is, the up-down direction.

[0118] Scenario one: the second hole end 2615 of the inclined hole 265 is offset to the right relative to the first hole end 2614.

[0119] This scenario is suitable for the channel second end 2612 of the transition channel 131 to be inclined to the right relative to the channel first end 2613.

[0120] Please refer to FIG. 17, which shows a front view schematic diagram of the transition channel 131 of the speaker 13 cooperating with the sound hole 264 on the shell structure 263. The second hole end 2615 of the inclined hole 265 is offset to the right relative to the first hole end 2614, the channel second end 2612 of the transition channel 131 is offset to the right relative to the channel first end 2613, the airflow direction in the transition channel 131 is from the left side to the right side, and the airflow direction in the inclined hole 265 is from the left side to the right side.

[0121] Scenario two: the second hole end 2615 of the inclined hole 265 is offset to the left relative to the first hole end 2614.

[0122] This scenario is suitable for the channel second end 2612 of the transition channel 131 to be inclined to the left relative to the channel first end 2613.

[0123] Please see FIG. 18, which shows a front view diagram of the transition channel 131 of the speaker 13 cooperating with the sound hole 264 on the housing structure 263. The second hole end 2615 of the inclined hole 265 is offset to the left side relative to the first hole end 2614, and the channel second end 2612 of the transition channel 131 is offset to the left relative to the channel first end 2613. The airflow in the transition channel 131 flows from the right side to the left side, and the airflow in the inclined hole 265 flows from the right side to the left side.

[0124] Scenario three: the second hole end 2615 of the inclined hole 265 is offset to the lower side relative to the first hole end 2614.

[0125] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined downward relative to the channel first end 2613.

[0126] Please see FIG. 19, which shows a front view diagram of the transition channel 131 of the speaker 13 cooperating with the sound hole 264 on the housing structure 263. The second hole end 2615 of the inclined hole 265 is offset to the lower side relative to the first hole end 2614, and the channel second end 2612 of the transition channel 131 is offset to the lower side relative to the channel first end 2613. The airflow in the transition channel 131 flows from the upper side to the lower side, and the airflow in the inclined hole 265 flows from the upper side to the lower side.

[0127] Scenario four: the second hole end 2615 of the inclined hole 265 is offset to the upper side relative to the first hole end 2614.

[0128] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined upward relative to the channel first end 2613.

[0129] Please see FIG. 20, which shows a front view diagram of the transition channel 131 of the speaker 13 cooperating with the sound hole 264 on the housing structure 263. The second hole end 2615 of the inclined hole 265 is offset to the upper side relative to the first hole end 2614, and the channel second end 2612 of the transition channel 131 is offset to the upper side relative to the channel first end 2613. The airflow in the transition channel 131 flows from the lower side to the upper side, and the airflow in the inclined hole 265 flows from the lower side to the upper side.

[0130] Scenario five: the second hole end 2615 of the inclined hole 265 is offset to the right side relative to the first hole end 2614, and the second hole end 2615 of the inclined hole 265 is offset to the upper side relative to the first hole end 2614.

[0131] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined to the right and inclined upward relative to the channel first end 2613.

[0132] Scenario six: the second hole end 2615 of the inclined hole 265 is offset to the left side relative to the first hole end 2614, and the second hole end 2615 of the inclined hole 265 is offset to the upper side relative to the first hole end 2614.

[0133] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined to the left and being inclined upward relative to the channel first end 2613.

[0134] Scenario seven: the second hole end 2615 of the inclined hole 265 is offset to the left side relative to the first hole end 2614, and the second hole end 2615 of the inclined hole 265 is offset to the lower side relative to the first hole end 2614.

[0135] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined to the left and being inclined downward relative to the channel first end 2613.

[0136] Scenario eight: the second hole end 2615 of the inclined hole 265 is offset to the right side relative to the first hole end 2614, and the second hole end 2615 of the inclined hole 265 is offset to the lower side relative to the first hole end 2614.

[0137] This scenario is suitable for the channel second end 2612 of the transition channel 131 being inclined to the right and being inclined downward relative to the channel first end 2613.

[0138] Next, the sound outlet hole 264 is further introduced.

[0139] In an implementation, the shell structure 263 includes one or more sound outlet hole groups 269, and each sound outlet hole group includes sound outlet holes 264 that cooperate with the same speaker 13.

[0140] As described above, it is described that the mobile phone 1 includes the first speaker 13A and the second speaker 13B, that is, two speakers 13 are arranged in the mobile phone 1. At this time, two sound outlet hole groups 269 are arranged on the shell structure 263. Of course, when the electronic device includes a number of speakers 13 other than two, a corresponding number of sound outlet hole groups 269 are arranged on the shell structure 263.

[0141] In the present embodiment, the plurality of sound outlet hole groups 269 refers to two or more sound outlet hole groups 269, for example, the sound outlet hole groups 269 are two, three, and the like.

[0142] In the present embodiment, the following three cases are included:

[0143] Case one: the main body part is provided with one sound outlet hole group 269, and the sound outlet hole group 269 includes an inclined hole 265.

[0144] The main body part is provided with one sound hole group 269, which is suitable for the case that only one speaker 13 is provided in the electronic device, and the channel second end 2612 of the transition passage 131 of the speaker 13 is inclined relative to the channel first end 2612; the sound hole group 269 includes one or more sound holes 264, at least one sound hole 264 is an inclined hole 265, and the offset direction of the second hole end 2615 relative to the first hole end 2614 in at least one direction is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613. Please refer to FIG. 21, which shows that the main body part is provided with one sound hole group 269.

[0145] Case two: The main body part is provided with two or more sound hole groups 269, and some of the sound hole groups 269 include inclined holes 265.

[0146] For example, the main body part is provided with two sound hole groups 269, one of which includes inclined holes 265, and the other does not include inclined holes 265, i.e. all the sound holes in the sound hole group 269 are straight holes 268. At this time, it is suitable for the case that the electronic device has two speakers 13, one of which has an inclined channel second end 2612 of the transition passage 131 relative to the channel first end 2613. The other speaker 13 does not have an inclined channel second end 2612 of the transition passage 131 relative to the channel first end 2613, i.e. the direction from the channel first end 2613 to the channel second end 2612 is consistent with the direction from the first side 266 to the second side 267, and the speaker 13 does not need to correspond to an inclined sound hole 264.

[0147] In addition, if the electronic device has two speakers 13, both of which have an inclined channel second end 2612 of the transition passage 131 relative to the channel first end 2613, although one of the sound hole groups 269 does not include inclined holes 265, compared with the prior art, the sound emission of one of the speakers 13 has been improved, and there is still progress compared with the prior art. Please refer to FIG. 21, which shows that the main body part is provided with two sound hole groups 269.

[0148] Case three: The main body part is provided with two or more sound hole groups 269, and all the sound hole groups 269 include inclined holes 265.

[0149] For example, the main body part is provided with two sound hole groups 269, both of which include inclined holes 265. Each sound hole group 269 corresponds to one speaker 13, and both speakers 13 have an inclined channel second end 2612 of the transition passage 131 relative to the channel first end 2613. In the two sound hole groups 269, the inclined directions of the inclined holes 265 can be different, and in the two sound hole groups 269, the inclined directions of the inclined holes 265 correspond to the inclined directions of the transition passages 131 of the respective speakers 13.

[0150] In the embodiment, each sound outlet hole group 269 includes more than one sound outlet hole 264, for example, each sound outlet hole group 269 includes one, two, three, four or five sound outlet holes 264. The number of sound outlet holes 264 in each sound outlet hole group 269 can be reasonably set according to actual conditions.

[0151] In an implementation, the sound outlet hole group 269 including the inclined hole 265 is a target sound outlet hole group, and each sound outlet hole 264 in all target sound outlet hole groups is an inclined hole 265.

[0152] By setting each sound outlet hole 264 in the target sound outlet hole group as an inclined hole 265, the sound quality of the loudspeaker 13 cooperating with the target sound outlet hole group is improved, and the noise of the loudspeaker 13 is improved.

[0153] In an implementation, the inclination angles of all inclined holes 265 in the same target sound outlet hole group are the same.

[0154] Please refer to FIG. 12, the axis of the inclined hole 265 has an angle a with the first direction, and the inclination angles of all inclined holes 265 are the same, that is, the angles a of the axes of all inclined holes 265 with the first direction are the same. By setting the inclination angles of all inclined holes 265 in the same target sound outlet hole group to be the same, the processing of the shell structure 263 is facilitated.

[0155] For the same loudspeaker 13 (the second end of the transition channel 131 of the loudspeaker 13 is inclined and skewed relative to the first end of the channel), simulation and comparison of the inclined sound outlet hole 264 and the straight hole 268 are performed, and the following results are obtained:

[0156] (1) The aerodynamic noise sound power distribution of the inclined sound outlet hole 264 is significantly reduced relative to the straight hole 268;

[0157] (2) The aerodynamic noise spectrum of the inclined sound outlet hole 264 is reduced relative to the straight hole 268;

[0158] (3) The A-weighted overall sound pressure level of the inclined sound outlet hole 264 changes from 69 dB to 60 dB relative to the straight hole 268;

[0159] (4) The comparison of wideband noise (airflow noise) under single-frequency excitation shows that the inclined hole scheme has obvious benefits;

[0160] (5) The frequency response experiment has no difference.

[0161] In the same target sound outlet hole group, the inclination angles of all inclined holes 265 are preferably the same. The inclination angles the same herein include the case within the error range, that is, when the inclination angles of the inclined holes 265 have differences within the error range, the inclination angles of the inclined holes 265 are still considered the same.

[0162] In one embodiment, the angles of inclination of all the inclined holes 265 in the same target sound hole group are not necessarily the same, i.e., in the second direction, the farther the inclined hole 265 in the target sound hole group from the matching speaker 13, the greater the angle between the axis of the inclined hole 265 and the first direction, wherein the second direction is the arrangement direction of the inclined holes.

[0163] Please refer to FIG. 23, which shows the second speaker 13B, the second transition channel 13B5 and the second sound hole 165. The direction pointed by the arrow Y in FIG. 23 is called the right side, and the direction away from the arrow Y is called the left side. Through simulation, it is found that there is an area without airflow on the left side of each second sound hole 165, i.e., the shaded part of each second sound hole 165 in FIG. 23 represents the non-airflow area 2610, and the size of the non-airflow area 2610 in each second sound hole 165 is not the same. The second sound holes 165 can be inclined and gradually increase in the direction of the Y axis, so as to reduce the non-airflow area 2610 of each second sound hole 165, which can be beneficial to improve the airflow when the speaker vibrates, and thus reduce the noise. However, from the perspective of processing, the processing precision is high.

[0164] The difference in the inclination angle between two adjacent inclined holes 265 is related to the distance between the two inclined holes 265. For example, the inclination angle between the two adjacent inclined holes 265 can differ by 0-10°. Since the inclined holes 265 in the same target sound hole group are equally spaced, the difference in the inclination angle of any two adjacent inclined holes 265 can be the same.

[0165] Next, the main part of the shell structure 263 is further introduced.

[0166] In one embodiment, the shell structure further includes a narrow-slit sound hole 2611, which is in communication with a sound hole group 269 and the transition channel 131 of the matching speaker 13 of the sound hole group 269.

[0167] As described above, please refer to FIG. 2 and FIG. 3, the second sound hole 165 is located on the top surface of the external structure 16, and the sound-emitting narrow slit 166 is formed on the screen side of the mobile phone 1. The second speaker 13B outputs sound in two modes, one is the earpiece mode with small volume, and the other is the external mode with large volume. In the earpiece mode, the second speaker 13B is powered down to produce sound with small volume, at this time, the user can hold the mobile phone 1 and put it close to the ear, and the user can hear the sound through the sound-emitting narrow slit 166.

[0168] In the embodiment, the narrow slit sound hole 2611 is formed on the shell structure 263, and the function of the narrow slit sound hole 2611 is the same as that of the existing related sound slit 166. Please refer to FIG. 24, which shows the narrow slit sound hole 2611.

[0169] In an implementation, the shell structure 263 is a middle frame of the electronic device, or the shell structure 263 is a middle frame and a back shell of the electronic device.

[0170] As described above by taking the mobile phone 1 as an example, the shell of the mobile phone 1 generally includes a screen and a shell, the shell generally includes a middle frame and a back shell, and the screen, the middle frame and the back shell enclose to form the shell along the thickness direction of the mobile phone 1. Generally, the sound hole 264 on the shell which cooperates with the loudspeaker 13 is arranged on the middle frame. Therefore, in the embodiment, the shell structure 263 is limited to be the middle frame of the electronic device.

[0171] Specifically, in some scenarios, the middle frame and the back shell of the electronic device are two separate components, and in other scenarios, the middle frame and the back shell of the electronic device are an integrated structure. Therefore, the shell structure 263 provided in the embodiment can be only the middle frame, or a shell formed by the middle frame and the back shell.

[0172] The electronic device provided in the embodiments of the present application is explained and described in detail as follows.

[0173] The electronic device provided in the embodiments of the present application is explained and described in detail as follows.

[0174] The electronic device provided in the embodiments of the present application can be a mobile phone 1, a tablet computer, a notebook computer, a personal digital assistant (PDA), a vehicle-mounted computer, a television, a smart wearable device (such as a smart watch, a smart bracelet, a smart head-mounted display, smart glasses), a smart home device, and the like.

[0175] The shell structure 263 is generally a part of the shell of the electronic device, and the shell structure 263 includes a main body part and a sound hole 264. The main body part includes a first side and a second side, and the first side and the second side are oppositely arranged. The sound hole 264 is arranged on the main body part and communicates the first side and the second side.

[0176] The loudspeaker 13 comprises a core which separates a space inside the loudspeaker 13 into a front cavity and a rear cavity, and a transition channel 131 which communicates the front cavity with the sound holes, specifically, the transition channel 131 comprises a channel first end 2613 and a channel second end 2612, the channel first end 2613 communicates with the front cavity 132, and the channel second end 2612 communicates with at least part of the sound holes 264.

[0177] At least part of the sound holes 264 are inclined holes 265, the axis of the inclined hole 265 has an angle with the first direction, the first direction is the direction from the first side to the second side, please refer to FIG. 11, in FIG. 11, the first direction is the X-axis direction.

[0178] Regarding the inclined direction of the inclined hole 265, specifically, the hole formed by the inclined hole 265 on the first side 266 is called the first hole end 2614, the hole formed by the inclined hole 265 on the second side 267 is called the second hole end 2615, and in at least one direction, the offset direction of the second hole end 2615 relative to the first hole end 2614 is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613.

[0179] By setting the inclined hole 265, so that the airflow flowing in the transition channel 131 of the loudspeaker 13 during operation flows out more smoothly through the inclined hole 265, so as to improve the sound emission of the loudspeaker 13 and reduce noise.

[0180] Regarding the offset direction of the second hole end 2615 relative to the first hole end 2614 in at least one direction being the same as the offset direction of the channel second end 2612 relative to the channel first end 2613, in one example, the offset direction of the second hole end 2615 relative to the first hole end 2614 in the second direction is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613 in the second direction, or the offset direction of the second hole end 2615 relative to the first hole end in the third direction is the same as the offset direction of the channel second end 2612 relative to the channel first end 2613 in the third direction, the second direction and the third direction are both perpendicular to the first direction.

[0181] If the second direction is the Y-axis direction in FIGS. 17 and 18, the third direction is the Z-axis direction in FIGS. 19 and 20. Of course, if the second direction is the Z-axis direction in FIGS. 19 and 20, the third direction is the Y-axis direction in FIGS. 17 and 18. Referring to FIGS. 17 and 18, the second hole end 2615 is offset relative to the first hole end 2614 in the Y-axis direction, and the channel second end 2612 is offset relative to the channel first end 2613 in the Y-axis direction. Referring to FIGS. 19 and 20, the second hole end 2615 is offset relative to the first hole end 2614 in the Z-axis direction, and the channel second end 2612 is offset relative to the channel first end 2613 in the Z-axis direction.

[0182] In an example, the second hole end 2615 is offset relative to the first hole end 2614 in the second direction in the same direction as the channel second end 2612 is offset relative to the channel first end 2613 in the second direction, and the second hole end 2615 is offset relative to the first hole end in the third direction in the same direction as the channel second end 2612 is offset relative to the channel first end 2613 in the third direction, the second direction and the third direction being perpendicular to the first direction.

[0183] The number of the loudspeakers 13 is one or more, and the housing structure 263 further comprises one or more sound hole groups 269, each sound hole group 269 comprising a plurality of sound holes 264 cooperating with the same loudspeaker 13, i.e., the number of the sound hole groups 269 is consistent with the number of the loudspeakers 13, and each sound hole group 269 corresponds to one loudspeaker 13, and the loudspeaker 13 cooperating with the inclined hole 265 is the target loudspeaker.

[0184] In an example, the number of the loudspeakers 13 is two or more, and all the loudspeakers 13 in the electronic device are target loudspeakers, so as to improve the noise when the loudspeakers 13 in the electronic device emit sound.

[0185] In an example, the number of the loudspeakers 13 is two or more, and not all the loudspeakers 13 in the electronic device are target loudspeakers, i.e., the loudspeakers 13 other than the target loudspeakers are non-target loudspeakers, and the sound holes 264 cooperating with the non-target loudspeakers are straight holes 268, the axis of the straight holes 268 being perpendicular to the first side surface 266 and the second side surface 267.

[0186] The first end of the transition channel 131 of the non-target speaker is close to one side of the front cavity of the speaker 13, and the position where the transition channel 131 of the non-target speaker communicates with the straight hole is the second end. The direction from the first end to the second end is perpendicular to the axis of the straight hole, or the second end is deflected relative to the first end in the second direction and / or the third direction.

[0187] In an embodiment, the shell structure 263 is a middle frame of the electronic device, and the shell structure 263 and the screen 161 of the electronic device enclose the transition channel 131 of the target speaker.

[0188] By enclosing the transition channel 131 of the target speaker by the shell structure 263 and the screen 161 of the electronic device, the size of the target speaker can be reduced.

[0189] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A housing structure characterized by, The shell structure comprises: a main body and a plurality of sound holes; the main body comprises a first side and a second side, the first side and the second side are oppositely arranged; the plurality of sound holes are arranged on the main body, and the plurality of sound holes are in communication with the first side and the second side; the plurality of sound holes are used to communicate with the transition channel of the loudspeaker, at least part of the plurality of sound holes are inclined holes, the axis of the inclined hole has an angle with the first direction, the first direction is the direction from the first side to the second side.

2. The housing structure of claim 1, wherein The shell structure further comprises one or more sound hole groups, the sound hole group comprises the sound holes in the plurality of sound holes matched with the same loudspeaker.

3. The housing structure of claim 2, wherein, The sound hole group comprises a target sound hole group, all the sound holes in the target sound hole group are inclined holes.

4. The housing structure of claim 3, wherein The axes of all the inclined holes in the target sound hole group have the same angle with the first direction.

5. The housing structure of claim 3, wherein Along the second direction, the farther the inclined hole in the target sound hole group is from the matched loudspeaker, the larger the angle between the axis of the inclined hole and the first direction, wherein the second direction is the arrangement direction of the inclined hole.

6. The housing structure of any one of claims 2-5, wherein, The shell structure further comprises a narrow slit sound hole, the narrow slit sound hole is in communication with the transition channel of the loudspeaker matched with the sound hole group.

7. The housing structure of any one of claims 1-6, wherein, The angle between the axis of the inclined hole and the first direction ranges from 0 to 60 degrees.

8. The housing structure of any one of claims 1-7, wherein, The shell structure is a middle frame; or the shell structure is a middle frame and a rear shell.

9. An electronic device, comprising: The shell structure comprises: one or more loudspeakers and the shell structure of any one of claims 1-8; the loudspeaker comprises a front cavity, a rear cavity and a transition channel.

10. The electronic device of claim 9, wherein, The transition channel comprises a channel first end and a channel second end, the channel first end is in communication with the front cavity, and the channel second end is in communication with at least part of the plurality of sound holes.

11. The electronic device of claim 10, wherein, The sound hole forms a first hole end on the first side, and forms a second hole end on the second side; along at least one direction, the offset direction of the second hole end relative to the first hole end is the same as the offset direction of the channel second end relative to the channel first end.

12. The electronic device of claim 11, wherein, The offset direction of the second hole end relative to the first hole end in the second direction is the same as the offset direction of the channel second end relative to the channel first end in the second direction, or the offset direction of the second hole end relative to the first hole end in the third direction is the same as the offset direction of the channel second end relative to the channel first end in the third direction, the second direction and the third direction are both perpendicular to the first direction.

13. The electronic device of claim 11, wherein, The offset direction of the second hole end relative to the first hole end in the second direction is the same as the offset direction of the channel second end relative to the channel first end in the second direction, and the offset direction of the second hole end relative to the first hole end in the third direction is the same as the offset direction of the channel second end relative to the channel first end in the third direction, the second direction and the third direction are both perpendicular to the first direction.

Images