Audio device and electronic device

Abstract

The application discloses an audio device and an electronic device, and relates to the field of loudspeakers. The audio device comprises a shell, a full-frequency audio module and a high-frequency audio module. The shell has an inner cavity, and a sound outlet is arranged on the side wall of the shell along a first direction. The full-frequency audio module and the high-frequency audio module are arranged in the inner cavity, the high-frequency audio module is arranged along the first direction with the full-frequency audio module, and the high-frequency audio module is arranged on the side close to the sound outlet. The full-frequency audio module and the high-frequency audio module share a magnetic part. Along a second direction perpendicular to the first direction, the inner cavity of the shell forms a first sound cavity at one end of the full-frequency audio module and the high-frequency audio module, and forms a second sound cavity at the other end. The first sound cavity is in communication with the sound outlet. The application can solve the problem of poor frequency response of the high frequency of the loudspeaker in the related art.

Description

Technical Field

[0001] This application belongs to the field of loudspeaker technology, specifically relating to an audio device and electronic equipment. Background Technology

[0002] In some electronic devices related to this technology, such as mobile phones, tablets, and smart wearable devices, the speaker is integrated into the device, with the speaker's sound outlet located on the side of the device; that is, it uses a side-emitting sound method. This type of speaker has a sound guide channel for sound emission from the side. The sound guide channel allows sound to travel towards the sound outlet and ultimately be emitted outwards. Considering that the sound guide channel has a certain length and also possesses high-frequency filtering characteristics, the sound produced by the speaker propagates through the sound guide channel, resulting in a high-frequency response difference. This reduces the overall sound resolution, especially in the high-frequency range, thus affecting the external playback effect and impacting the user experience. Summary of the Invention

[0003] The purpose of this application is to provide an audio device and electronic device that can solve problems such as poor frequency response at high frequencies of loudspeakers in related technologies.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] This application provides an audio device, including: a housing, a full-range audio module, and a high-frequency audio module;

[0006] The housing has an inner cavity, and the housing has a sound outlet on its side wall along the first direction;

[0007] Both the full-range audio module and the high-frequency audio module are disposed in the inner cavity. The high-frequency audio module and the full-range audio module are arranged along the first direction, and the high-frequency audio module is located on the side closer to the sound outlet. The full-range audio module and the high-frequency audio module share a magnetic component.

[0008] Along a second direction perpendicular to the first direction, the inner cavity of the housing forms a first sound cavity at one end of the full-range audio module and the high-frequency audio module, and a second sound cavity at the opposite end, wherein the first sound cavity is connected to the sound outlet.

[0009] This application also provides an electronic device, including the audio device described above.

[0010] In this embodiment, a wide frequency response can be generated by a full-range audio module, and the high-frequency band of the sound is enhanced by adding a high-frequency audio module near the sound outlet. This effectively compensates for the high-frequency loss of the full-range audio module caused by the high-frequency filtering effect of the downstream sound guide channel of the audio device, thereby effectively expanding the effective bandwidth of the audio device's external output. In addition, the full-range audio module and the high-frequency audio module share a magnetic component, which can reduce the number of structures and the stacking space, thereby helping to reduce the overall size of the audio device and alleviate the problems of large audio device size and tight stacking space. Attached Figure Description

[0011] Figure 1 This is a first schematic diagram of an audio device of the first type disclosed in the embodiments of this application;

[0012] Figure 2 This is a second schematic diagram of the first type of audio device disclosed in the embodiments of this application;

[0013] Figure 3 This is a partial schematic diagram of the first type of full-range audio module disclosed in the embodiments of this application;

[0014] Figure 4 This is a partial schematic diagram of the first type of high-frequency audio module disclosed in the embodiments of this application;

[0015] Figure 5 This is a partial schematic diagram of the first type of audio device disclosed in the embodiments of this application;

[0016] Figure 6 This is a schematic diagram of the magnetic circuit of the first type of audio device disclosed in the embodiments of this application;

[0017] Figure 7 This is a partial schematic diagram of the second type of audio device disclosed in the embodiments of this application;

[0018] Figure 8 This is a schematic diagram of the magnetic circuit of the second type of audio device disclosed in the embodiments of this application;

[0019] Figure 9 This is a schematic diagram of the magnetic circuits of the full-range magnetic component and the high-frequency magnetic component of the second type of audio device disclosed in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10-Shell; 11-Sound outlet; 12-First sound cavity; 13-Second sound cavity;

[0022] 20-Full-range audio module; 21-Full-range magnetic component; 211-Third magnetic unit; 212-Fourth magnetic unit; 213-Fifth magnetic unit; 22-Full-range voice coil; 23-Center magnetic component; 24-Full-range diaphragm; 25-Magnetic cup; 26-Intermediate magnetic guide plate; 27-Side magnetic guide plate;

[0023] 30-High-frequency audio module; 31-High-frequency magnetic component; 311-First magnetic unit; 312-Second magnetic unit; 313-Sixth magnetic unit; 314-Seventh magnetic unit; 32-High-frequency voice coil; 321-First side; 322-Second side; 33-High-frequency diaphragm; 34-Bracket;

[0024] M - First containment space; N - Second containment space. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0028] refer to Figures 1 to 9 This application discloses an audio device, which includes a housing 10, a full-range audio module 20, and a high-frequency audio module 30.

[0029] The housing 10 serves as the basic mounting component for the audio device, providing a mounting base for the full-range audio module 20 and the high-frequency audio module 30. In some embodiments, the housing 10 has an inner cavity, within which both the full-range audio module 20 and the high-frequency audio module 30 are housed. Thus, the housing 10 both accommodates the full-range audio module 20 and the high-frequency audio module 30 and provides protection against external factors that could affect their normal operation. Furthermore, the inner cavity of the housing 10 provides a propagation space for the sound emitted by each of the full-range audio module 20 and the high-frequency audio module 30, ensuring smooth sound transmission.

[0030] The full-range audio module 20 is mainly used to achieve full-range sound output. However, since the sound guide channel connected to the audio device has a certain length and may also have certain high-frequency filtering characteristics, the sound emitted by the full-range audio module 20 will cause significant attenuation of the high-frequency part after propagating through the sound guide channel. This results in a poor high-frequency response and reduced overall sound resolution, ultimately affecting the user's experience of the external sound output of the audio device.

[0031] Based on the above, this embodiment of the application adds a high-frequency audio module 30, which is arranged along the first direction with the full-range audio module 20. The high-frequency audio module 30 is located on the side near the sound outlet 11 of the housing 10. Therefore, the high-frequency audio module 30 can generate high-frequency sound, thereby compensating for the high-frequency sound generated by the full-range audio module 20, thus expanding the effective bandwidth of the external speaker, enhancing the external speaker effect, and improving the external audio playback performance. Exemplarily, the high-frequency audio module 30 can be a moving-coil speaker or a piezoelectric ceramic speaker; the specific form is not limited.

[0032] Furthermore, since both the full-range audio module 20 and the high-frequency audio module 30 are disposed within the inner cavity of the housing 10, a first acoustic cavity 12 is formed at one end of the full-range audio module 20 and the high-frequency audio module 30, and a second acoustic cavity 13 is formed at the opposite end, along a second direction perpendicular to the first direction. Based on this, the sound emitted by each of the full-range audio module 20 and the high-frequency audio module 30 can propagate to both the first acoustic cavity 12 and the second acoustic cavity 13, allowing sound to propagate and reflect within both cavities, thereby improving sound quality and listening experience.

[0033] Considering that the sound emitted by the full-range audio module 20 can propagate into the first acoustic cavity 12 and then out of the housing 10, the side wall of the housing 10 can also be provided with a sound outlet 11, and the first acoustic cavity 12 is connected to the sound outlet 11. Based on this configuration, the sound emitted by the full-range audio module 20 can ultimately be propagated out of the housing 10 through the sound outlet 11, so that the user can hear the sound.

[0034] Based on the above configuration, this embodiment of the application can generate a wide frequency response through the full-range audio module 20, and by adding a high-frequency audio module 30 near the sound outlet 11 to enhance the high-frequency range of the sound, it can effectively compensate for the high-frequency loss of the sound caused by the high-frequency filtering effect of the sound guide channel, thereby effectively expanding the effective bandwidth of the audio device's external output. In addition, the full-range audio module 20 and the high-frequency audio module 30 share a magnetic component, which can reduce the number of structures and the stacking space, thereby helping to reduce the overall size of the audio device and alleviate problems such as large size and limited stacking space of the audio device.

[0035] Optionally, the full-range audio module 20 can be a dynamic speaker, or of course, other types of speakers, which are not specifically limited here.

[0036] In some embodiments, at least a portion of the shared magnetic element is disposed between the full-range audio module 20 and the high-frequency audio module 30, thereby enabling both the full-range audio module 20 and the high-frequency audio module 30 to be better positioned in the magnetic field surrounding the shared magnetic element.

[0037] refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments, the full-range audio module 20 may include a full-range magnetic element 21 as a shared magnetic element; of course, the full-range audio module 20 may also include a full-range voice coil 22, a central magnetic element 23, and a full-range diaphragm 24, wherein the full-range magnetic element 21 is disposed around the central magnetic element 23 with a gap between them, and at least a portion of the full-range voice coil 22 is disposed in the gap, such that the full-range voice coil 22 is located in the mixed magnetic field of the full-range magnetic element 21 and the central magnetic element 23, and the full-range diaphragm 24 is connected to the full-range voice coil 22. Based on this arrangement, when the full-range voice coil 22 is energized, a magnetic field is generated around the full-range voice coil 22. This magnetic field interacts with the aforementioned mixed magnetic field, causing the full-range voice coil 22 to reciprocate, and driving the full-range diaphragm 24 to reciprocate synchronously, thereby generating sound by causing the surrounding air to vibrate through the vibration of the full-range diaphragm 24.

[0038] The full-range diaphragm 24 can be positioned toward the first acoustic cavity 12 so that the generated sound can diffuse and propagate in the first acoustic cavity 12.

[0039] In addition to the above structures, such as Figure 3 As shown, the full-range audio module 20 may also include a magnetic cup 25, a central magnetic guide plate 26, and a side magnetic guide plate 27. The magnetic cup 25 can be connected to the inner wall of the housing 10. Both the central magnetic component 23 and the full-range magnetic component 21 can be disposed within the magnetic cup 25, so that the magnetic cup 25 can support the central magnetic component 23 and the full-range magnetic component 21, ensuring their stability. The central magnetic guide plate 26 is disposed on the side of the central magnetic component 23 facing away from the magnetic cup 25, serving a magnetic guiding function. The side magnetic guide plate 27 is disposed on the side of the full-range magnetic component 21 facing away from the magnetic cup 25, also serving a magnetic guiding function.

[0040] refer to Figure 4 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the high-frequency audio module 30 may include a high-frequency magnetic component 31, a high-frequency voice coil 32, and a high-frequency diaphragm 33. Specifically, along a first direction, the high-frequency magnetic component 31 is disposed on the side of the full-range magnetic component 21 near the sound outlet 11, the high-frequency voice coil 32 is disposed between the high-frequency magnetic component 31 and the full-range magnetic component 21, and the high-frequency voice coil 32 is located in the mixed magnetic field of the high-frequency magnetic component 31 and the full-range magnetic component 21. At least a portion of the high-frequency diaphragm 33 covers the high-frequency voice coil 32.

[0041] Based on the above configuration, since the high-frequency voice coil 32 is located in the mixed magnetic field of the high-frequency magnetic component 31 and the full-range magnetic component 21, when the high-frequency voice coil 32 is energized to generate a magnetic field, the magnetic field interacts with the mixed magnetic field to cause the high-frequency voice coil 32 to move back and forth. At the same time, the high-frequency diaphragm 33 moves synchronously with the high frequency, thereby causing the high-frequency diaphragm 33 to drive the surrounding air to vibrate, thereby generating high-frequency sound to compensate for the high-frequency missing part of the sound emitted by the full-range audio module 20, so as to ensure the effective bandwidth of the sound.

[0042] It should be noted that in this embodiment, the full-range magnetic component 21 can provide a magnetic field for both the full-range audio module 20 and the high-frequency diaphragm 33 module, achieving the effect of sharing a magnetic component. Compared to the high-frequency diaphragm 33 module having a separate magnetic component, the shared magnetic component method in this embodiment can reduce the number of structures and the stacking space, thereby helping to reduce the overall size of the audio device and alleviate problems such as large size and limited stacking space of the audio device.

[0043] In addition to the above structure, the high-frequency audio module 30 may also include a bracket 34, which is connected to the inner wall of the housing 10. The bracket 34 may also be connected to the magnetic cup 25 of the full-range audio module 20 to ensure the stability of the bracket 34. The high-frequency magnetic component 31 may be disposed on the bracket 34, so that the bracket 34 supports the high-frequency magnetic component 31 to ensure its installation stability.

[0044] refer to Figure 4 and Figure 6 In some embodiments, the axis of the high-frequency voice coil 32 is arranged along a first direction, such that the high-frequency magnetic element 31 is spaced apart on the side of the full-range magnetic element 21 near the sound outlet 11, so that a magnetic circuit can be generated between the high-frequency magnetic element 31 and the full-range magnetic element 21; the high-frequency voice coil 32 is located between the high-frequency magnetic element 31 and the full-range magnetic element 21, so that the high-frequency voice coil 32 can be located in the mixed magnetic field of the high-frequency magnetic element 31 and the full-range magnetic element 21.

[0045] Furthermore, the axis of the high-frequency voice coil 32 can extend along the distribution direction (i.e., the first direction) of the high-frequency magnetic component 31 and the full-range magnetic component 21. For example, the high-frequency magnetic component 31 and the full-range magnetic component 21 can be distributed in a horizontal plane. In this case, the axis of the high-frequency voice coil 32 can be horizontal, that is, the high-frequency voice coil 32 is vertically positioned. Of course, the high-frequency magnetic component 31 and the full-range magnetic component 21 can also be distributed in other planes, and correspondingly, the extension direction of the axis of the high-frequency voice coil 32 is adjusted accordingly. It should be noted here that the axis of the full-range voice coil 22 of the full-range audio module 20 can extend vertically, that is, the full-range voice coil 22 is horizontally positioned.

[0046] In addition, the high-frequency diaphragm 33 is positioned toward the first sound cavity 12, so that the high-frequency diaphragm 33 is connected between the high-frequency magnetic component 31 and the full-frequency magnetic component 21. In this way, the vibration of the high-frequency voice coil 32 can drive the high-frequency diaphragm 33 to vibrate toward or away from the first sound cavity 12 to generate sound, which will then diffuse and propagate in the first sound cavity 12.

[0047] Based on the above configuration, by adopting a vertical arrangement of the high-frequency voice coil 32, the magnetic component at the center of the high-frequency voice coil 32 can be eliminated. Furthermore, since the thickness of the high-frequency voice coil 32 is much smaller than its width, the vertical arrangement significantly saves stacking space during installation, thereby further reducing the overall size of the audio device. Because the high-frequency diaphragm 33 is vertically arranged, its amplitude under the influence of the magnetic field is smaller than that of a horizontally arranged diaphragm. This ensures that the vibration area of ​​the high-frequency voice coil 32 is essentially within the linear region of the magnetic circuit, effectively reducing the probability of distortion and improving sound quality.

[0048] It should be noted that in the related technology, the horizontal placement of the voice coil can only utilize a portion of the magnetic circuit. If the voice coil simultaneously cuts through the entire magnetic circuit, the Ampere forces generated on both sides of the voice coil will cancel each other out, resulting in the voice coil failing to vibrate. Compared to the horizontal placement, the vertical placement of the high-frequency voice coil 32 can make fuller use of the magnetic circuit because the currents in the two sides of the high-frequency voice coil 32 are directed in opposite directions, and the magnetic circuits are also reversed. Therefore, the Ampere forces generated on the high-frequency voice coil 32 are directed in the same direction, thereby effectively improving the utilization rate of the magnetic circuit.

[0049] refer to Figure 4 In some embodiments, the high-frequency magnetic component 31 may include a first magnetic unit 311 and a second magnetic unit 312 disposed along a second direction perpendicular to the first direction. The first magnetic unit 311 is disposed corresponding to a first side 321 of the high-frequency voice coil 32 along the second direction, and the second magnetic unit 312 is disposed corresponding to a second side 322 of the high-frequency voice coil 32 along the second direction. Based on this arrangement, compared to a single magnetic unit, the cooperation of the first magnetic unit 311 and the second magnetic unit 312 can help improve the magnetic field strength, and they can also interact with the opposite sides of the high-frequency voice coil 32 respectively, thus making fuller use of the magnetic field.

[0050] For example, the first sound cavity 12 and the second sound cavity 13 can be distributed in the vertical direction (i.e., the up-down direction). In this case, the first magnetic unit 311 and the second magnetic unit 312 can also be arranged in the vertical direction. Of course, the first sound cavity 12 and the second sound cavity 13 can also be distributed in other directions. Correspondingly, the first magnetic unit 311 and the second magnetic unit 312 can also be arranged in other directions.

[0051] Optionally, the first magnetic unit 311 and the second magnetic unit 312 can be fitted together to ensure that the magnetic field lines of the end faces of the first magnetic unit facing the other can penetrate into the other.

[0052] Of course, in other embodiments, the first magnetic unit 311 and the second magnetic unit 312 may also be an integral structure, and together with the full-frequency magnetic component 21, provide a magnetic field for the high-frequency voice coil 32.

[0053] refer to Figure 6The high-frequency magnetic element 31 and the full-range magnetic element 21 are spaced apart in the left-right direction, with the high-frequency voice coil 32 placed vertically between them. The first magnetic unit 311 is located above the second magnetic unit 312. The upper end of the full-range magnetic element 21 is the S pole, and the lower end is the N pole; the upper end of the first magnetic unit 311 is the N pole, and the lower end is the S pole; the upper end of the second magnetic unit 312 is the N pole, and the lower end is the S pole. Thus, magnetic field lines originate from the lower end of the full-range magnetic element 21, pass through the lower side of the high-frequency voice coil 32, then enter the lower end of the second magnetic unit 312, then enter the lower end of the first magnetic unit 311 from the upper end of the second magnetic unit 312, then exit from the upper end of the first magnetic unit 311, then pass through the upper side of the high-frequency voice coil 32, then enter the upper end of the full-range magnetic element 21, and finally return to the lower end of the full-range magnetic element 21, thereby forming a magnetic circuit.

[0054] When alternating current is applied to the high-frequency voice coil 32, the current in the upper and lower sides of the high-frequency voice coil 32 flows in opposite directions. According to the left-hand rule, the upper and lower sides of the high-frequency voice coil 32 are simultaneously subjected to downward or upward magnetic field forces, and the direction of these magnetic field forces changes periodically. This causes the high-frequency voice coil 32 to vibrate in the vertical direction. The high-frequency voice coil 32 drives the high-frequency diaphragm 33 to vibrate synchronously up and down, which in turn drives the air to vibrate, ultimately producing sound. Since the high-frequency diaphragm 33 is oriented towards the first sound cavity 12, the sound generated by its vibration can diffuse and propagate into the first sound cavity 12, and is finally emitted outward through the sound outlet 11.

[0055] refer to Figures 7 to 9 In some other embodiments, a first accommodating space M may be provided on one side of the full-range magnetic component 21 along the first direction; the high-frequency magnetic component 31 is connected to the full-range magnetic component 21, and the high-frequency diaphragm 33 is provided on the side of the high-frequency magnetic component 31 along the first direction, and the high-frequency diaphragm 33 and the high-frequency magnetic component 31 together form a second accommodating space N corresponding to the first accommodating space M. In this way, the first accommodating space M and the second accommodating space N can jointly provide space for the high-frequency voice coil 32.

[0056] Furthermore, the axis of the high-frequency voice coil 32 extends along the distribution direction (i.e., the second direction) of the first sound cavity 12 and the second sound cavity 13, and one side of the high-frequency voice coil 32 along the first direction is located in the first receiving space M, while the other side of the high-frequency voice coil 32 along the first direction is located in the second receiving space N. Based on this, a magnetic field can be provided to one side of the high-frequency voice coil 32 by the full-range magnetic element 21, and a magnetic field can be provided to the other side of the high-frequency voice coil 32 by the high-frequency magnetic element 31.

[0057] For example, the first sound cavity 12 and the second sound cavity 13 can be distributed in a vertical direction (i.e., up and down direction). In this case, the axis of the high-frequency voice coil 32 can be in a vertical direction, that is, the high-frequency voice coil 32 is placed horizontally. Of course, the first sound cavity 12 and the second sound cavity 13 can also be distributed in other planes, and the extension direction of the axis of the high-frequency voice coil 32 is adjusted accordingly.

[0058] Compared to the vertical arrangement described above, in the horizontal arrangement here, the full-range magnetic component 21 and the high-frequency magnetic component 31 are not spaced apart, but can be attached together. This changes the relative positional relationship between the high-frequency voice coil 32 and the full-range magnetic component 21 and the high-frequency magnetic component 31, thereby changing the stress on the high-frequency voice coil 32 accordingly.

[0059] Of course, it can also be understood that the current full-range magnetic component 21 and high-frequency magnetic component 31 together form an integrated full-range magnetic component 21, which can provide a magnetic field for the sound output of the full-range audio module 20 and also provide a magnetic field for the sound output of the high-frequency audio module 30.

[0060] Optionally, the full-frequency magnetic component 21 can be a single integrated structure, such as a concave magnetic component; of course, it can also be composed of multiple magnetic components spliced ​​together, as long as it can form the first accommodating space M, and the specific form is not limited.

[0061] Continue to refer to Figures 7 to 9 In some more specific embodiments, the full-frequency magnetic element 21 may include a third magnetic unit 211, a fourth magnetic unit 212, and a fifth magnetic unit 213 stacked sequentially in the second direction. The third magnetic unit 211 and the fifth magnetic unit 213 each protrude from one end of the fourth magnetic unit 212 along the first direction to form a first accommodating space M. Exemplarily, the third magnetic unit 211, the fourth magnetic unit 212, and the fifth magnetic unit 213 can all be rectangular magnetic units; of course, they can also be other shapes, which are not specifically limited here.

[0062] In addition, in the third magnetic unit 211, the fourth magnetic unit 212 and the fifth magnetic unit 213, the magnetic properties at the connection surfaces of adjacent units are opposite, that is, N pole - S pole, so as to ensure that the adjacent units can attract each other and allow the magnetic field lines to pass through smoothly.

[0063] Furthermore, the difference in magnetic field strength generated by the third magnetic unit 211 and the fifth magnetic field unit on one side of the high-frequency voice coil 32 along the first direction is less than or equal to the target threshold, and both are greater than the magnetic field strength generated by the fourth magnetic unit 212 on the same side of the high-frequency voice coil 32 along the first direction. Based on this arrangement, the uniformity of the magnetic field in one region of the high-frequency voice coil 32 can be improved, thereby improving the stability of one side of the high-frequency voice coil 32 when it is energized. For example, the magnetic field strength generated by the third magnetic unit 211 and the fifth magnetic field unit on one side of the high-frequency voice coil 32 along the first direction can be the same or within the error range.

[0064] Optionally, the high-frequency magnetic component 31 can be a single integrated structure, such as a U-shaped magnetic component; of course, it can also be composed of multiple magnetic components spliced ​​together, as long as it can form a second accommodating space N, and the specific form is not limited.

[0065] Continue to refer to Figures 7 to 9 In some more specific embodiments, the high-frequency magnetic component 31 may include a sixth magnetic unit 313 and a seventh magnetic unit 314 disposed along a second direction. The sixth magnetic unit 313 and the seventh magnetic unit 314 are spaced apart by a predetermined distance, such that they are spaced apart along the distribution direction of the first acoustic cavity 12 and the second acoustic cavity 13. The high-frequency diaphragm 33 is connected between the sixth magnetic unit 313 and the seventh magnetic unit 314 to form a second accommodating space N. Exemplarily, both the sixth magnetic unit 313 and the seventh magnetic unit 314 can be rectangular magnetic units; of course, they can also be other shapes, which are not specifically limited here.

[0066] In addition, the magnetic properties at the facing end faces of the sixth magnetic unit 313 and the seventh magnetic unit 314 are opposite, that is, N pole - S pole, to ensure that they can attract each other and allow the magnetic field lines to pass through smoothly.

[0067] Furthermore, the difference in magnetic field strength generated by the sixth magnetic unit 313 and the seventh magnetic unit 314 on the other side of the high-frequency voice coil 32 along the first direction is less than or equal to the target threshold. This can help improve the uniformity of the magnetic field in the region on the other side of the high-frequency voice coil 32, thereby improving the stability of the other side of the high-frequency voice coil 32 when it is energized. For example, the magnetic field strength generated by the sixth magnetic unit (313) and the seventh magnetic unit (314) on the other side of the high-frequency voice coil (32) along the first direction can be the same or within the error range.

[0068] Based on the above settings, the embodiments of this application can ensure the uniformity of the magnetic field in the entire area where the high-frequency voice coil 32 is located, thereby improving the stability of the entire high-frequency voice coil 32.

[0069] In some embodiments, the current in one side of the high-frequency voice coil 32 along the first direction is opposite to the current in the other side along the first direction; correspondingly, the direction of the magnetic field generated by the full-range magnetic element 21 in the first receiving space M is opposite to the direction of the magnetic field generated by the high-frequency magnetic element 31 in the second receiving space N. Based on this arrangement, it can be ensured that after the high-frequency voice coil 32 is energized, the magnetic field forces acting on its opposite sides are in the same direction, ensuring that the high-frequency voice coil 32 can vibrate.

[0070] refer to Figure 8 and Figure 9 The high-frequency magnetic component 31 and the full-frequency magnetic component 21 are attached to each other in the left-right direction. The third magnetic unit 211, the fourth magnetic unit 212 and the fifth magnetic unit 213 are stacked sequentially from top to bottom. The left ends of the third magnetic unit 211 and the fifth magnetic unit 213 protrude from the left end of the fourth magnetic unit 212, so that the lower end face of the third magnetic unit 211, the left end face of the fourth magnetic unit 212 and the upper end face of the fifth magnetic unit 213 together form the first accommodating space M. The sixth magnetic unit 313 is located above the seventh magnetic unit 314, and the sixth magnetic unit... The right end face of the seventh magnetic unit 313 is attached to the left end face of the third magnetic unit 211, and the right end face of the seventh magnetic unit 314 is attached to the left end face of the fifth magnetic unit 213. The high-frequency diaphragm 33 is connected between the left end face of the sixth magnetic unit 313 and the left end face of the seventh magnetic unit 314, so that the lower end face of the sixth magnetic unit 313, the upper end face of the seventh magnetic unit 314, and the right end face of the high-frequency diaphragm 33 together form the second accommodating space N. The high-frequency voice coil 32 is horizontally arranged, with one side located in the first accommodating space M and the other side located in the second accommodating space N.

[0071] In this configuration, the upper surface of the third magnetic unit 211 is the S pole, and the lower surface is the N pole; the upper surface of the fourth magnetic unit 212 is the S pole, and the lower surface is the N pole; the upper surface of the fifth magnetic unit 213 is the S pole, and the lower surface is the N pole; the upper surface of the sixth magnetic unit 313 is the N pole, and the lower surface is the S pole; and the upper surface of the seventh magnetic unit 314 is the N pole, and the lower surface is the S pole. Thus, magnetic field lines originate from the lower surface of the third magnetic unit 211, pass through one side (i.e., the right side) of the high-frequency voice coil 32, and then enter the fifth magnetic unit 213. From the fifth magnetic unit 213, they enter the seventh magnetic unit 314. From the seventh magnetic unit 314, they pass through the opposite side (i.e., the left side) of the high-frequency voice coil 32 and enter the sixth magnetic unit 313. Finally, from the sixth magnetic unit 313, they enter the third magnetic unit 211, thus forming a magnetic circuit.

[0072] When alternating current is applied to the high-frequency voice coil 32, the currents on the left and right sides of the high-frequency voice coil 32 are in opposite directions. According to the left-hand rule, the left and right sides of the high-frequency voice coil 32 are simultaneously subjected to a magnetic field force to the left or simultaneously subjected to a magnetic field force to the right, and the direction of the magnetic field force changes periodically. This causes the high-frequency voice coil 32 to vibrate in the left-right direction, which in turn causes the high-frequency diaphragm 33 to vibrate left and right, thereby causing the air to vibrate and produce sound. The emitted sound can propagate to the first sound cavity 12 and diffuse, and is finally emitted outward through the sound outlet 11.

[0073] In this embodiment, the high-frequency voice coil 32 is positioned horizontally as described above. Since the high-frequency voice coil 32 is located within the internal space of the full-range magnetic component 21 and the high-frequency magnetic component 31, it does not occupy additional space, thus further compressing the lateral space. Furthermore, because the high-frequency voice coil 32 is close to the sound outlet 11, the sound generated by the vibration of the high-frequency audio module 30 can directly propagate to the sound outlet 11, minimizing the high-frequency filtering characteristics of the sound guide channel and improving the efficiency of the high-frequency audio module 30. Additionally, the horizontal positioning of the high-frequency voice coil 32 eliminates the need for a central magnet and upper and lower side supports. Instead, the surrounding magnetic components act as supports, reducing the thickness of the audio device and improving stacking efficiency in the thickness direction.

[0074] Based on the aforementioned audio device, this application also discloses an electronic device, which includes a device body and the aforementioned audio device, with the audio device disposed on the device body. The electronic device can be a mobile phone, tablet computer, smart wearable device, etc. It should be noted that the specific structure and working principle of the device body can be found in existing technologies and will not be described in detail here.

[0075] In summary, this embodiment of the application adds a high-frequency audio module 30 near the sound outlet 11, which is mainly responsible for enhancing the high-frequency range of the external playback effect, making up for the high-frequency loss caused by the high-frequency filtering of the sound guide channel, thereby greatly expanding the effective bandwidth of the external playback. In terms of design, the high-frequency audio module 30 and the full-range audio module 20 can share the same magnetic component (i.e., the full-range magnetic component 21), which can save horizontal stacking space and materials, and reduce costs. The high-frequency voice coil 32 in the high-frequency audio module 30 is arranged vertically, which can further save horizontal stacking space and make fuller use of the magnetic circuit, maximizing the utilization rate of the magnetic field. Furthermore, since the high-frequency part handled by the high-frequency audio module 30 has a small amplitude, the vibration range of the vertically arranged high-frequency voice coil 32 is basically within the effective area of ​​the magnetic field, which can reduce the sound distortion rate and improve the sound quality.

[0076] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An audio device, characterized in that, include: Housing (10), full-range audio module (20) and high-frequency audio module (30); The housing (10) has an inner cavity, and the housing (10) has a sound outlet (11) on its side wall along the first direction. The full-range audio module (20) and the high-frequency audio module (30) are both located in the inner cavity. The high-frequency audio module (30) and the full-range audio module (20) are arranged along the first direction, and the high-frequency audio module (30) is located on the side closer to the sound outlet (11). The full-range audio module (20) and the high-frequency audio module (30) share a magnetic component. Along a second direction perpendicular to the first direction, the inner cavity of the housing (10) forms a first sound cavity (12) at one end of the full-range audio module (20) and the high-frequency audio module (30), and a second sound cavity (13) at the opposite end. The first sound cavity (12) is connected to the sound outlet (11). At least a portion of the shared magnetic component is disposed between the full-range audio module (20) and the high-frequency audio module (30); The full-range audio module (20) includes a full-range magnetic component (21) as a shared magnetic component. The high-frequency audio module (30) includes a high-frequency magnetic component (31), a high-frequency voice coil (32), and a high-frequency diaphragm (33). Along the first direction, the high-frequency magnetic component (31) is disposed on the side of the full-range magnetic component (21) near the sound outlet (11), and the high-frequency voice coil (32) is disposed between the high-frequency magnetic component (31) and the full-range magnetic component (21). The full-frequency magnetic component (21) has a first accommodating space (M) on one side along the first direction; The high-frequency magnetic component (31) is connected to the full-frequency magnetic component (21), the high-frequency diaphragm (33) is disposed on the side of the high-frequency magnetic component (31) along the first direction, and the high-frequency diaphragm (33) and the high-frequency magnetic component (31) together form a second accommodating space (N) corresponding to the first accommodating space (M). The axis of the high-frequency voice coil (32) is arranged along the second direction, and one side of the high-frequency voice coil (32) along the first direction is located in the first accommodating space (M), and the other side of the high-frequency voice coil (32) along the first direction is located in the second accommodating space (N). The full-frequency magnetic component (21) includes a third magnetic unit (211), a fourth magnetic unit (212) and a fifth magnetic unit (213) stacked sequentially in the second direction. The third magnetic unit (211) and the fifth magnetic unit (213) each protrude from one end of the fourth magnetic unit (212) along the first direction to form the first accommodating space (M). The high-frequency magnetic component (31) includes a sixth magnetic unit (313) and a seventh magnetic unit (314) arranged along the second direction, and there is a preset distance between the sixth magnetic unit (313) and the seventh magnetic unit (314); The high-frequency diaphragm (33) is connected between the sixth magnetic unit (313) and the seventh magnetic unit (314) to form the second accommodating space (N).

2. The audio apparatus of claim 1, wherein, The high-frequency voice coil (32) is located in the mixed magnetic field of the high-frequency magnetic element (31) and the full-frequency magnetic element (21), and at least a portion of the high-frequency diaphragm (33) covers the high-frequency voice coil (32).

3. The audio apparatus of claim 1, wherein, The magnetic field strength generated by the third magnetic unit (211) and the fifth magnetic unit (213) on the side of the high-frequency voice coil (32) along the first direction is greater than the magnetic field strength generated by the fourth magnetic unit (212) on the side of the high-frequency voice coil (32) along the first direction.

4. The audio apparatus of claim 1, wherein, The difference in magnetic field strength between the sixth magnetic unit (313) and the seventh magnetic unit (314) generated on the other side of the high-frequency voice coil (32) along the first direction is less than or equal to the target threshold.

5. The audio device according to any one of claims 1 to 4, characterized in that, The direction of the current in the high-frequency voice coil (32) along the first direction is opposite to the direction of the current along the other side of the first direction; The direction of the magnetic field generated by the full-frequency magnetic component (21) in the first accommodating space (M) is opposite to the direction of the magnetic field generated by the high-frequency magnetic component (31) in the second accommodating space (N).

6. An electronic device, comprising: It includes a device body and an audio device as described in any one of claims 1 to 5, wherein the audio device is disposed on the device body.

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