Loudspeaker module and electronic device
Patent Information
- Application Number
- CN202611136837.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-29
- Publication Date
- 2026-09-15
Smart Images
Figure CN122765367A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of loudspeaker technology, specifically relating to a loudspeaker module and electronic device. Background Technology
[0002] With the advancement of technology, electronic devices have become common tools in daily life, enabling users to capture images, watch videos, and communicate remotely. Typically, electronic devices have built-in speaker modules that emit sound, allowing users to hear audio when the device is performing functions such as playing videos or communicating remotely.
[0003] In related technologies, to balance the pressure difference between the internal and external atmospheres of electronic devices, balancing holes are set on the entire device. These balancing holes allow air to enter and exit the electronic device when the ambient pressure changes. Speakers also have balancing holes or leakage holes to prevent the speaker module's diaphragm from shifting or even being damaged due to excessive internal and external pressure differences. Because the flow resistance of the overall device's balancing holes is relatively low, when a user presses the electronic device, the air inside is compressed. This compressed air then enters the speaker module through the speaker balancing holes. Since the flow resistance of the speaker balancing holes is not low enough, the pressure of the airflow entering the speaker module through the balancing holes is relatively high. This high-pressure airflow impacts the vibrating diaphragm, causing noise from the speaker. Summary of the Invention
[0004] This application aims to provide a speaker module and electronic device that at least solves the problem of noise generated by speakers.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application provide a speaker module, the speaker module comprising: a front cover, a speaker unit, a rear cover, and a sealing member; The front cover and the rear cover enclose a sound cavity, and the speaker unit is disposed in the sound cavity. The rear cover has a mounting surface, which is the surface of the rear cover that is opposite to the front cover. The mounting surface is provided with a balance hole. The sealing member is attached to the mounting surface and covers the balance hole. A balancing air passage is provided between the cover and the mounting surface. The balancing air passage includes a main air passage and a return air passage. The first end of the main air passage is connected to the outside of the speaker module, and the second end of the main air passage is connected to the balancing hole. The two ends of the return air passage are respectively connected to the main air passage. The return air passage is used to divert the gas flowing into the main air passage to the return air passage, and from the return air passage to the main air passage, so as to reduce the flow rate of the gas flowing into the balancing hole from the main air passage.
[0006] Secondly, embodiments of this application provide an electronic device, which includes the speaker module described in the first aspect above.
[0007] In this embodiment, since the front cover and the rear cover enclose a sound cavity, and the speaker unit is disposed in the sound cavity, when the speaker unit vibrates, it can cause the air in the sound cavity to vibrate, thereby causing the speaker module to emit sound. Since the rear cover has a mounting surface with a balance hole, the cover is attached to the mounting surface and covers the balance hole. A balance air passage is provided between the cover and the mounting surface. The balance air passage includes a main air passage. One end of the main air passage is connected to the balance hole, and the other end of the main air passage is connected to the side of the rear cover. Therefore, the gas inside the speaker module can flow through the balance hole into the main air passage and flow out from the main air passage to the outside of the speaker module. Of course, the gas outside the speaker module can also flow into the main air passage through the other end of the main air passage and flow through the main air passage to the balance hole and then into the inside of the speaker module. Because the balance airway also includes a return airway, with both ends connected to the main airway, when gas from outside the speaker module flows into the main airway through the other end, some of the gas flows into the return airway during its flow within the main airway. This portion of gas then flows back into the main airway, colliding with the gas in the main airway to form vortices. In other words, when gas flowing out of the return airway flows into the main airway, it collides with the gas in the main airway, creating vortices. These vortices violently consume the gas flow. The kinetic energy of the moving object is converted into heat energy and dissipated, thereby reducing the flow rate of the gas into the balance hole. This reduces the flow rate of the gas in the main air channel, resulting in a lower flow rate of the gas into the balance hole. When the speaker module is applied to electronic devices, when the electronic device is pressed, the gas inside the electronic device flows into the balance air channel, and the flow rate of the gas into the balance hole is reduced due to the effect of the balance air channel. This effectively prevents the generation of high-pressure airflow through the balance hole, which would otherwise enter the speaker module and impact the diaphragm, causing noise in the speaker module.
[0008] In other words, in this embodiment, by providing a balanced air passage between the sealing surface and the back cover, and the balanced air passage including a main air passage and a return air passage, when the speaker module is applied to an electronic device, the airflow velocity is reduced when the gas inside the electronic device flows through the balanced air passage after the electronic device is pressed. This prevents high-speed gas from flowing into the balanced hole, which would result in a higher pressure of the gas after flowing through the balanced hole. In other words, it avoids the problem of high-pressure airflow entering the interior of the speaker module, which would cause noise in the speaker module. Therefore, in this embodiment, the sound effect of the speaker module can be effectively improved. Attached Figure Description
[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This represents one of the exploded views of a speaker module provided in an embodiment of this application; Figure 2 This is a schematic diagram of one embodiment of a speaker module provided in this application; Figure 3 This is a cross-sectional view of a speaker module provided in an embodiment of this application; Figure 4 This is a schematic diagram showing that the rear cover of a speaker module provided in this application embodiment has a first airflow groove on its mounting surface; Figure 5 This is a second exploded view of a speaker module provided in an embodiment of this application; Figure 6 This is the third exploded view of a speaker module provided in an embodiment of this application; Figure 7 This is a schematic diagram illustrating the connection between a cap and an adhesive component according to an embodiment of this application, wherein the adhesive component is provided with a second airflow groove; Figure 8 This is an exploded view of an electronic device provided in an embodiment of this application; Figure 9 This is a schematic diagram illustrating an electronic device provided in an embodiment of this application.
[0010] Figure label: 10: Front cover; 20: Speaker unit; 30: Rear cover; 301: Mounting surface; 302: Balance hole; 303: Mounting slot; 304: Vent slot; 3011: First airflow slot; 40: Cover; 50: Adhesive; 501: Second airflow slot; 502: Vent hole; 60: Vent component; 100: Balance air passage; 110: Main air passage; 111: First air passage section; 112: Second air passage section; 120: Return air passage; 200: Frame; 300: Display module; 400: Battery; α: First included angle. Detailed Implementation
[0011] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0012] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships may exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of a, b, or c" can represent: a, b, c, a combination of a and b, a combination of a and c, a combination of b and c, or a, b, and c, where a, b, and c can be single or multiple.
[0013] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0014] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0015] This application provides a speaker module, such as... Figure 1 , Figure 2 and Figure 3 As shown, the speaker module includes: a front cover 10, a speaker unit 20, a rear cover 30, and a sealing member 40.
[0016] The front cover 10 and the rear cover 30 enclose a sound cavity, in which the speaker unit 20 is disposed. The rear cover 30 has a mounting surface 301, which is the surface of the rear cover 30 facing away from the front cover 10. The mounting surface 301 has a balance hole 302. The cover 40 is fitted to the mounting surface 301 and covers the balance hole 302. A balance air passage 100 is provided between the cover 40 and the mounting surface 301. The balance air passage 100 includes a main air passage 110 and a return air passage 110. The main air duct 110 has a first end connected to the outside of the speaker module and a second end connected to the balance hole 302. The return air duct 120 has two ends connected to the main air duct 110. The return air duct 120 is used to divert the gas flowing into the main air duct 110 to the return air duct 120 and from the return air duct 120 into the main air duct 110, so as to reduce the flow rate of the gas flowing into the balance hole 302 from the main air duct 110.
[0017] In this embodiment, since the front cover 10 and the rear cover 30 enclose a sound cavity, and the speaker unit 20 is disposed in the sound cavity, when the speaker unit 20 vibrates, it can cause the air in the sound cavity to vibrate, thereby causing the speaker module to emit sound. Since the back cover 30 has a mounting surface 301, the mounting surface 301 is provided with a balance hole 302, the cover 40 is attached to the mounting surface 301 and covers the balance hole 302, and a balance air passage 100 is provided between the cover 40 and the mounting surface 301. The balance air passage 100 includes a main air passage 110. The first end of the main air passage 110 is connected to the outside of the speaker module, and the second end of the main air passage 110 is connected to the balance hole 302. Therefore, the gas inside the speaker module can flow through the balance hole 302 into the main air passage 110 and flow out from the main air passage 110 to the outside of the speaker module. Of course, the gas outside the speaker module can also flow into the main air passage 110 through the other end of the main air passage 110 and flow through the main air passage 110 to the balance hole 302 and then into the inside of the speaker module. Since the balance airway 100 also includes a return airway 120, with both ends of the return airway 120 connected to the main airway 110, when gas outside the speaker module flows into the main airway 110 through the other end of the main airway 110, some of the gas can flow into the return airway 120 during its flow in the main airway 110. This portion of gas then flows back into the main airway 110 after flowing along the return airway 120. The gas in the return airway 120 will then collide with the gas in the main airway 110, forming a vortex. In other words, when the gas flowing out of the return airway 120 flows into the main airway 110, the gas flowing out of the return airway 120 will collide with the gas in the main airway 110, forming a vortex. These eddies will violently consume the kinetic energy of the gas flow, converting it into heat energy and dissipating it, thereby reducing the flow rate of the gas flowing into the balance hole 302. This reduces the flow rate of the gas in the main air channel 110, resulting in a lower flow rate of the gas flowing into the balance hole 302. When the speaker module is applied to an electronic device, when the electronic device is pressed, the gas inside the electronic device will have its flow rate reduced after flowing into the balance air channel 100 due to the effect of the balance air channel 100. This reduces the flow rate of the gas flowing into the balance hole 302, effectively preventing the generation of high-speed airflow through the balance hole 302. This high-speed airflow would then enter the interior of the speaker module and impact the diaphragm of the speaker module, causing noise problems in the speaker module.
[0018] That is, in this embodiment of the application, by providing a balanced air passage 100 between the sealing surface 301 of the cover 40 and the rear cover 30, and the balanced air passage 100 includes a main air passage 110 and a return air passage 120, when the speaker module is applied to an electronic device, the airflow velocity is reduced when the gas inside the electronic device flows through the balanced air passage 100 after the electronic device is pressed. This prevents high-speed gas from flowing into the balanced hole 302, which would result in a large pressure of the gas after flowing through the balanced hole 302. In other words, it avoids the problem of high-speed airflow entering the interior of the speaker module and causing noise in the speaker module. Therefore, in this embodiment of the application, the sound effect of the speaker module can be effectively improved.
[0019] It should be noted that, in this embodiment, the material of the cap 40 can be polyethylene terephthalate (PET). Of course, the material of the cap 40 can also be other materials, such as polypropylene or polystyrene. The specific material of the cap 40 is not limited in this embodiment.
[0020] Furthermore, in this embodiment, the shape of the cap 40 can be set according to actual needs. For example, the cap 40 can be a square sheet, a trapezoidal sheet, or a triangular sheet. This embodiment does not limit the shape of the cap 40 in this regard.
[0021] In addition, in this embodiment, the back cover 30 has a cavity, the speaker unit 20 is disposed in the cavity, and the speaker unit 20 and the cavity of the back cover 30 enclose a sealed space, and the balance hole 302 communicates with the sealed space.
[0022] Additionally, in some embodiments, such as Figure 2 and Figure 4 As shown, the main air duct 110 includes a first air duct section 111 and a second air duct section 112. The first end of the first air duct section 111 is connected to the outside of the speaker module, the second end of the first air duct section 111 is connected to the first end of the second air duct section 112, and the second end of the second air duct section 112 is connected to the balance hole 302. The width of the first air duct section 111 is greater than the width of the second air duct section 112. The first end of the return air duct 120 is connected to the second end of the first air duct section 111, and the second end of the return air duct 120 is connected to the second air duct section 112.
[0023] Since the first end of the first air passage section 111 is connected to the outside of the speaker module, the second end of the first air passage section 111 is connected to the first end of the second air passage section 112, and the second end of the second air passage section 112 is connected to the balance hole 302, after the gas outside the speaker module flows into the first air passage section 111 through the first end of the first air passage section 111, the gas can flow along the first air passage section 111, and then the gas can flow into the second air passage section 112, so that the gas flows into the balance hole 302. Since the width of the first airway segment 111 is greater than the width of the second airway segment 112, the first end of the return airway 120 is connected to the second end of the first airway segment 111, and the second end of the return airway 120 is connected to the second airway segment 112. Therefore, when the gas flowing into the first airway segment 111 flows out from the second end of the first airway segment 111, part of the gas will flow into the return airway 120 and part of the gas will flow into the second airway segment 112. Furthermore, the width of the first airway segment 111 is greater than that of the second airway segment 112, ensuring that the second end of the first airway segment 111 can be connected to both the first end of the second airway segment 112 and the first end of the return airway 120, thereby facilitating the simultaneous flow of gas from the first airway segment 111 into the return airway 120 and the second airway segment 112. Furthermore, after the gas in the first air passage section 111 flows into the return air passage 120 and the second air passage section 112, the gas in the return air passage 120 flows along the return air passage 120 and then flows into the second air passage section 112. This causes the gas flowing out of the return air passage 120 to collide with the gas in the second air passage section 112, thereby generating a vortex. This reduces the flow velocity of the gas in the second air passage section 112, resulting in a lower flow velocity of the gas flowing from the second air passage section 112 into the balance hole 302. This prevents high-speed gas from flowing into the balance hole 302, which would result in a higher pressure of the gas after passing through the balance hole 302. In other words, it prevents high-pressure airflow from entering the interior of the speaker module, thus avoiding the problem of noise generated by the speaker module.
[0024] It should be noted that, in the embodiments of this application, the first airway segment 111 extends in a straight line, and the second airway segment 112 also extends in a straight line, and the width of the first airway segment 111 remains unchanged, as does the width of the second airway segment 112. For example, as... Figure 4 and Figure 7 As shown, Figure 4 and Figure 7In this context, L1 represents the centerline of the first airway segment 111, and L2 represents the centerline of the second airway segment 112. Of course, in some embodiments, the centerline of the first airway segment 111 is a straight line, but the width of the first airway segment 111 varies; similarly, the centerline of the second airway segment 112 is a straight line, but the width of the second airway segment 112 varies. In this case, the minimum width of the first airway segment 111 is greater than the maximum width of the second airway segment 112. For example, the shape of the first airway segment 111 may be trapezoidal, and the shape of the second airway segment 112 may also be trapezoidal.
[0025] Additionally, in some embodiments, such as Figure 4 As shown, the extending direction of the first air duct section 111 and the extending direction of the second air duct section 112 have a first angle α. With this arrangement, after gas from outside the speaker module flows into the first air duct section 111 through its first end, the gas in the first air duct section 111 flows into the second air duct section 112. The first angle α between the extending directions of the first air duct section 111 and the second air duct section 112 causes the gas flow path to bend as it flows into the second air duct section 112, resulting in some gas colliding with the inner wall of the second air duct section 112 and thus reducing the gas velocity to a certain extent. In other words, by setting the first angle α between the extending directions of the first air duct section 111 and the second air duct section 112, it is beneficial to reduce the gas velocity in the second air duct section 112.
[0026] It should be noted that the first included angle α can range from 90° to 180°, that is, the first included angle α can be any value between 90° and 180°. For example, the first included angle α is 90°, 120°, 130°, 150°, 170°, and 180°. The specific value of the first included angle α is not limited in this embodiment.
[0027] It should also be noted that the first angle α between the extending direction of the first airway segment 111 and the extending direction of the second airway segment 112 can be the angle between the centerline of the first airway segment 111 and the centerline of the second airway segment 112. For example, as... Figure 4 and Figure 7 As shown, Figure 4 and Figure 7 In the diagram, L1 represents the centerline of the first airway segment 111, L2 represents the centerline of the second airway segment 112, and the angle between L1 and L2 is the first angle α.
[0028] Additionally, in some embodiments, such as Figure 4As shown, the extension direction of the centerline of the first end of the return airway 120 is parallel to the extension direction of the centerline of the first airway segment 111, and the extension direction of the centerline of the second end of the return airway 120 intersects the extension direction of the centerline of the second airway segment 112.
[0029] Since the centerline of the first end of the return airway 120 extends parallel to the centerline of the first airway segment 111, after the gas outside the speaker module flows into the first airway segment 111 from the first end, it can easily flow into the return airway 120 when it reaches the second end of the first airway segment 111. Since the centerline of the second end of the return airway 120 intersects the centerline of the second airway segment 112, when the gas flowing into the return airway 120 exits from the second end of the return airway 120 and flows into the second airway segment 112, it can cause more collisions between the gas flowing out of the return airway 120 and the gas in the second airway segment 112, generating eddies and reducing the flow velocity of the gas in the second airway segment 112. That is, by setting the extension direction of the center line of the second end of the return air passage 120 to intersect the extension direction of the center line of the second air passage section 112, it is beneficial to reduce the flow rate of the gas in the second air passage section 112, so that the flow rate of the gas flowing into the balance hole 302 is lower.
[0030] It should be noted that, in this embodiment, the extension direction of the centerline of the second end of the reflux airway 120 can be perpendicular to the extension direction of the centerline of the second airway segment 112, that is, there is a 90° angle between the centerline of the second end of the reflux airway 120 and the centerline of the second airway segment 112. Of course, there can also be an acute angle or an obtuse angle between the centerline of the second end of the reflux airway 120 and the centerline of the second airway segment 112. This embodiment does not limit the specific angle. For example, as... Figure 4 and Figure 7 As shown, Figure 4 and Figure 7 In the diagram, L1 represents the centerline of the first airway segment 111, L2 represents the centerline of the second airway segment 112, L3 represents the centerline of the first end of the return airway 120, and L4 represents the centerline of the second end of the return airway 120. L1 and L3 are parallel, L2 and L4 intersect, and there is a first included angle α between L1 and L2.
[0031] Additionally, in some embodiments, such as Figure 4As shown, the return airway 120 is arc-shaped. This design allows gas to flow smoothly along its extension direction after entering the return airway 120, facilitating the flow of gas into the second airway section 112 and reducing its velocity. In other words, by making the return airway 120 arc-shaped, gas can easily flow from the return airway 120 into the second airway section 112, thus reducing the gas velocity in the second airway section 112.
[0032] Of course, in the embodiments of this application, the shape of the return airway 120 can also be other shapes. For example, the shape of the return airway 120 is a zigzag shape, or for another example, the shape of the return airway 120 is wavy. In this respect, the embodiments of this application do not limit it.
[0033] Additionally, in some embodiments, such as Figure 1 and Figure 4 As shown, the setting surface 301 has a first airflow groove 3011, the opening of the first airflow groove 3011 faces the cover 40, one end of the first airflow groove 3011 is connected to the balance hole 302, and the other end of the first airflow groove 3011 is connected to the side of the rear cover 30; the cover 40 covers the first airflow groove 3011, and the cover 40 and the first airflow groove 3011 together form the balance air passage 100.
[0034] Since the setting surface 301 has a first airflow groove 3011, the opening of the first airflow groove 3011 faces the cover 40. One end of the first airflow groove 3011 is connected to the balance hole 302, and the other end of the first airflow groove 3011 is connected to the side of the rear cover 30. Therefore, when the cover 40 is attached to the setting surface 301, the cover 40 can cover the first airflow groove 3011, which is equivalent to the cover 40 covering the opening of the first airflow groove 3011. Thus, after the gas flows into the first airflow groove 3011 from the other end, the gas is blocked by the cover 40 so that the gas cannot flow out from the opening of the first airflow groove 3011. The gas can only flow along the extension direction of the first airflow groove 3011. It is equivalent to the cover 40 and the first airflow groove 3011 forming a balance air passage 100 together. Furthermore, by opening a first airflow groove 3011 on the setting surface 301, it is equivalent to directly opening the first airflow groove 3011 on the back cover 30 of the speaker module. That is, the original structural surface space of the back cover 30 of the speaker module is directly used for processing. Thus, when the speaker module is applied to electronic devices, the speaker module does not occupy additional internal net space of the electronic device, and there is no need to introduce high-precision micro-hole processing equipment. The groove can be opened directly using conventional grooving equipment, which reduces the processing cost.
[0035] It should be noted that the cover 40 can be bonded to the setting surface 301 by the adhesive 50. The adhesive 50 can be double-sided tape, or it can be glue. This embodiment of the application does not limit the specific application.
[0036] Additionally, in some embodiments, such as Figure 5 , Figure 6 and Figure 7 As shown, the speaker module also includes an adhesive component 50, and the cover 40 is attached to the mounting surface 301 through the adhesive component 50; the adhesive component 50 is provided with a second airflow groove 501, one end of the second airflow groove 501 is connected to the balance hole 302, and the other end of the second airflow groove 501 is connected to the side of the rear cover 30. The cover 40, the second airflow groove 501 and the mounting surface 301 together form the balance air passage 100.
[0037] Since the cover 40 is attached to the mounting surface 301 via the adhesive 50, assembly of the cover 40 is relatively convenient. Because the adhesive 50 has a second airflow groove 501, one end of which is connected to the balance hole 302 and the other end of which is connected to the outside of the speaker module, when the cover 40 is attached to the mounting surface 301, the second airflow groove 501 is positioned between the cover 40 and the rear cover 30. Thus, after gas flows into the second airflow groove 501 from the other end, the gas is blocked by the cover 40, preventing it from flowing out of the groove opening. The gas can only flow along the extension direction of the second airflow groove 501. This effectively forms a balanced air passage 100 together with the cover 40, the second airflow groove 501, and the rear cover 30. Furthermore, by creating a second airflow groove 501 on the adhesive 50, it is unnecessary to create a balance air passage 100 on the mounting surface 301 of the rear cover 30. This also facilitates easier processing on the adhesive 50, significantly shortening the processing cycle of the speaker module. Additionally, creating the second airflow groove 501 on the adhesive 50 effectively reuses the adhesive 50, preventing an increase in the size of the speaker module and improving the internal space utilization of the electronic device.
[0038] It should be noted that the adhesive 50 can be double-sided tape, which is equivalent to opening a second airflow groove 501 on the double-sided tape.
[0039] Additionally, in some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the mounting surface 301 is provided with a mounting groove 303, the balance hole 302 is located at the bottom of the mounting groove 303, and the cover 40 is provided in the mounting groove 303.
[0040] Since the mounting surface 301 is provided with a mounting groove 303 and the balance hole 302 is located at the bottom of the mounting groove 303, when the mounting surface 301 is attached to the cover 40, the cover 40 can be placed in the mounting groove 303. That is, the mounting groove 303 provides a mounting position for the cover 40, so the assembly of the speaker module can be carried out relatively quickly.
[0041] It should be noted that in some embodiments of this application, the cover 40 is flush with the mounting surface 301, so the cover 40 is essentially not protruding from the rear cover 30. When the speaker module is applied to an electronic device, the space occupied by the speaker module can be reduced, avoiding the problem that the cover 40 protrudes from the rear cover 30, causing the cover 40 to occupy additional internal space of the electronic device, thereby reducing the utilization rate of the internal space of the electronic device. That is, by providing the mounting groove 303 and making the cover 40 flush with the mounting surface 301, it is convenient to install the cover 40, and it also helps the speaker module occupy less space, thereby improving the utilization rate of the internal space of the electronic device.
[0042] It should also be noted that when the cover 40 is placed in the mounting groove 303, the cover 40 can be attached to the bottom of the mounting groove 303 by the adhesive 50, so that the cover 40 is placed in the mounting groove 303.
[0043] Additionally, in some embodiments, such as Figure 1 and Figure 3 As shown, the speaker module also includes a vent 60, which is disposed between the mounting surface 301 and the cover 40, and the vent 60 covers the balance hole 302.
[0044] Since the vent 60 is disposed between the mounting surfaces 301 and covers the balance hole 302, the vent 60 ensures that airflow passes through the vent 60 and flows into the balance hole 302. Furthermore, the vent 60 prevents impurities from entering the speaker module, thus serving a dustproof function. Additionally, by covering the balance hole 302, the vent 60 also partially obstructs the flow of gas into the balance hole 302, reducing the gas velocity and preventing excessive gas pressure that could cause noise in the speaker module.
[0045] It should be noted that the breathable component 60 can be a mesh fabric, but it can also be of other types, such as a waterproof and breathable membrane. The specific type of the breathable component 60 is not limited in this embodiment.
[0046] Furthermore, in this embodiment, the shape of the breathable element 60 can be set according to actual needs. For example, the breathable element 60 can be circular, square, or triangular. This embodiment does not limit the specific shape of the breathable element 60.
[0047] Additionally, when the mounting surface 301 has a mounting groove 303, a venting groove 304 can be formed at the bottom of the mounting groove 303, and a balance hole 302 can be provided at the bottom of the venting groove 304. When installing the venting component 60, it can be directly placed in the venting groove 304. The existence of the venting groove 304 is equivalent to providing an installation position for the venting component 60, allowing for accurate and convenient installation of the venting component 60.
[0048] Additionally, when the adhesive component 50 is provided with a second airflow groove 501, then, as Figure 6 and Figure 7 As shown, a vent hole 502 can also be provided on the adhesive 50. The vent hole 502 is connected to the second airflow groove 501. So when the cover 40 is bonded to the setting surface 301 by the adhesive 50, the vent member 60 and the vent hole 502 are positioned opposite each other. At least part of the vent member 60 is located in the vent hole 502. The vent hole 502 can limit the vent member 60, ensuring that the vent member 60 does not shake or move between the cover 40 and the setting surface 301, so that the vent member 60 can effectively cover the balance hole 302.
[0049] This application provides an electronic device that includes a speaker module from any of the above embodiments.
[0050] It should be noted that, in the embodiments of this application, as Figure 8 and Figure 9 As shown, the electronic device includes a frame 200, and a speaker module is disposed in the frame 200. In addition, the electronic device also includes a display module 300 and a battery 400; the display module 300 is disposed on one side of the frame 200, and the display module 300 and the frame 200 enclose a receiving cavity, in which the battery 400 and the speaker module are both disposed.
[0051] The electronic device in this application embodiment can be a terminal or other devices besides a terminal. For example, mobile electronic devices can be mobile phones, tablets, laptops, PDAs, in-vehicle electronic devices, mobile internet devices (MIDs), netbooks, or personal digital assistants (PDAs), etc. Non-mobile electronic devices can also be personal computers (PCs), televisions (TVs), ATMs, or self-service machines, etc. This application embodiment does not make specific limitations.
[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0053] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A speaker module, characterized in that, The speaker module includes: a front cover, a speaker unit, a rear cover, and a sealing component; The front cover and the rear cover enclose a sound cavity, and the speaker unit is disposed in the sound cavity. The rear cover has a mounting surface, which is the surface of the rear cover that is opposite to the front cover. The mounting surface is provided with a balance hole. The sealing member is attached to the mounting surface and covers the balance hole. A balancing air passage is provided between the cover and the mounting surface. The balancing air passage includes a main air passage and a return air passage. The first end of the main air passage is connected to the outside of the speaker module, and the second end of the main air passage is connected to the balancing hole. The two ends of the return air passage are respectively connected to the main air passage. The return air passage is used to divert the gas flowing into the main air passage to the return air passage, and from the return air passage to the main air passage, so as to reduce the flow rate of the gas flowing into the balancing hole from the main air passage.
2. The speaker module according to claim 1, characterized in that, The main air duct includes a first air duct section and a second air duct section. The first end of the first air duct section is connected to the outside of the speaker module. The second end of the first air duct section is connected to the first end of the second air duct section. The second end of the second air duct section is connected to the balance hole. Wherein, the width of the first airway segment is greater than the width of the second airway segment, the first end of the return airway is connected to the second end of the first airway segment, and the second end of the return airway segment is connected to the second airway segment.
3. The speaker module according to claim 2, characterized in that, There is a first angle between the extension direction of the first airway segment and the extension direction of the second airway segment.
4. The speaker module according to claim 2, characterized in that, The centerline of the first end of the reflux airway extends in a direction parallel to the centerline of the first airway segment, and the centerline of the second end of the reflux airway intersects the centerline of the second airway segment.
5. The speaker module according to claim 1, characterized in that, The reflux airway is arc-shaped.
6. The speaker module according to any one of claims 1-5, characterized in that, The setting surface has a first airflow groove, the opening of the first airflow groove faces the cover, one end of the first airflow groove is connected to the balance hole, and the other end of the first airflow groove is connected to the side of the rear cover. The cover covers the first airflow groove, and the cover and the first airflow groove together form the balanced air passage.
7. The speaker module according to any one of claims 1-5, characterized in that, The speaker module also includes an adhesive component, and the cover is attached to the mounting surface via the adhesive component; The adhesive is provided with a second airflow groove, one end of which is connected to the balance hole, and the other end of which is connected to the outside of the speaker module. The cover, the second airflow groove, and the mounting surface together form the balance air passage.
8. The speaker module according to any one of claims 1-5, characterized in that, The mounting surface is provided with a mounting groove, the balancing hole is located at the bottom of the mounting groove, and the cover is disposed in the mounting groove.
9. The speaker module according to any one of claims 1-5, characterized in that, The speaker module also includes a vent, which is disposed between the mounting surface and the cover, and the vent covers the balance hole.
10. An electronic device, characterized in that, The electronic device includes the speaker module according to any one of claims 1-9.