Passive radiators and sound-generating devices

Abstract

The present invention discloses a passive radiator and a sound-producing device. The sound-producing device includes a housing, and the passive radiator includes a diaphragm and an elastic member. The diaphragm includes a vibrating portion and a folding ring portion, wherein the folding ring portion is connected to the edge of the vibrating portion and is disposed circumferentially around the vibrating portion. One end of the elastic member is connected to the vibrating portion, and the other end is used to connect to the housing. The technical solution of the present invention can reduce the phenomenon of swinging vibration from the center to the edge of the passive radiator, thereby reducing sound distortion and ensuring the sound quality.

Description

Technical Field

[0001] The present invention relates to the technical field of sound-generating equipment, and in particular to a passive radiator and a sound-generating equipment using the passive radiator. Background Art

[0002] Currently, passive radiators are typically installed within sound-producing devices. These passive radiators passively generate sound through the movement of the air within the housing by a speaker within the housing, thereby adjusting the bass of the device. However, the passive radiator itself lacks a supporting and centering structure when it vibrates, making it prone to swaying vibration from the center toward the edge. This swaying vibration can cause sound distortion and affect the sound quality. Summary of the Invention

[0003] The main purpose of the present invention is to provide a passive radiator, aiming to reduce the phenomenon of swing vibration from the center to the edge of the passive radiator, so as to reduce sound distortion and ensure the sound effect.

[0004] To achieve the above-mentioned object, the passive radiator proposed in the present invention is applied to a sound-generating device, wherein the sound-generating device includes a housing, and the passive radiator includes:

[0005] A diaphragm, the diaphragm comprising a vibrating portion and a rim portion, the rim portion being connected to an edge of the vibrating portion and disposed around the vibrating portion; and

[0006] An elastic member, one end of which is connected to the vibration part, and the other end of which is used to be connected to the shell.

[0007] Optionally, the elastic member is extended along the direction from the center of the vibration part toward the edge of the vibration part;

[0008] And / or, the number of the elastic members is at least two, and the at least two elastic members are evenly distributed around the center of the vibration part;

[0009] And / or, the elastic member and the folding ring are respectively connected to two surfaces opposite to the vibrating portion;

[0010] And / or, the elastic member and the vibration part are arranged in an integrated structure.

[0011] Optionally, the elastic member includes:

[0012] an elastic portion, wherein the elastic portion is made of an elastic material; and

[0013] a connecting portion, wherein at least one of the two opposite ends of the elastic portion is connected to the connecting portion, and the connecting portion is made of a rigid material;

[0014] The elastic member connects the vibration part and the housing through the connection part and the end of the elastic part without the connection part, or the elastic member connects the vibration part and the housing through the connection parts at opposite ends of the elastic part.

[0015] Optionally, in the extension direction of the elastic portion, the elastic portion is bent back and forth multiple times in a direction perpendicular to the extension direction of the elastic portion to form a curved structure;

[0016] And / or, the material of the elastic portion is the same as that of the diaphragm;

[0017] And / or, the connecting portion is arranged in a flat plate structure;

[0018] And / or, the width of the elastic portion is the same as the width of the connecting portion;

[0019] And / or, the thickness of the elastic portion is the same as the thickness of the connecting portion;

[0020] And / or, the elastic portion and the connecting portion are arranged in an integrated structure;

[0021] And / or, both opposite ends of the elastic portion are connected to the connecting portion.

[0022] Optionally, the diaphragm further includes a counterweight block, and the counterweight block is connected to the vibration part.

[0023] And / or, the counterweight is embedded inside the vibration part;

[0024] And / or, the diaphragm also includes a fixing portion, which is connected to the outer side of the folding ring portion and is arranged around the circumference of the folding ring portion. The edge of the fixing portion is recessed to form a first step, and the first step is used to connect to the shell.

[0025] The present invention also provides a sound-generating device, comprising:

[0026] A housing having an accommodating cavity formed therein, and further having a sound outlet hole and a through hole communicating with the accommodating cavity; and

[0027] a speaker, the speaker being disposed in the accommodating cavity and covering the sound outlet; and

[0028] A passive radiator is provided in the accommodating cavity. The passive radiator is the passive radiator described above. The diaphragm of the passive radiator covers the through hole, and the elastic member of the passive radiator is connected to the shell at one end away from the diaphragm.

[0029] Optionally, the elastic member and the housing are bonded and fixed;

[0030] And / or, the inner wall surface of the housing is provided with an inserting groove, and the elastic member is inserted into the inserting groove;

[0031] And / or, the fixing portion of the diaphragm is adhesively fixed to the housing;

[0032] And / or, the inner wall surface of the housing provided with the through hole is recessed to form a second step, the second step is arranged around the through hole, and a part of the structure of the fixing portion of the diaphragm is embedded in the second step.

[0033] Optionally, the accommodating cavity has two cavity walls arranged opposite to each other, and the sound outlet hole and the through hole are respectively provided in the two cavity walls arranged opposite to each other of the accommodating cavity.

[0034] Optionally, one end of the elastic member away from the diaphragm is connected to a cavity wall of the accommodating cavity where the through hole is formed, or is connected to a cavity wall of the accommodating cavity adjacent to the through hole;

[0035] And / or, the center line of the through hole and the center line of the sound outlet hole are located on the same straight line.

[0036] When the passive radiator of the technical solution of the present invention is applied to a sound-emitting device, since the diaphragm of the passive radiator includes a folded ring portion arranged around the outer side of the vibration part, the cross-section of the folded ring portion is roughly a semicircular arc structure and has a certain elasticity. In this way, the vibration ring portion can play a good reset role for the vibration part when it is driven by the airflow in the shell of the sound-emitting device, so that the vibration part has good compliance during the vibration process. At the same time, when the vibration part has a tendency to swing from the center to the edge, the folded ring portion can also generate an elastic force opposite to the tendency of the swing vibration, thereby supporting and maintaining the vibration part, so that the vibration part mainly vibrates along its axial direction when it is driven by the airflow in the shell of the sound-emitting device, reducing the phenomenon of the vibration part swinging from the center to the edge. Furthermore, the passive radiator also includes an elastic member, one end of which is directly connected to the vibration part, and the other end is used to connect to the shell. At this time, the elastic member can also directly elastically suppress the swinging vibration of the vibrating part from the center to the edge, thereby playing a supporting and centering role, thereby reducing the phenomenon of the vibrating part swinging from the center to the edge. In short, the passive radiator in this solution is provided with a folding ring portion on the diaphragm and an elastic member of the vibrating part directly connected to the diaphragm, so that both the folding ring portion and the elastic member can timely and directly suppress the swinging vibration of the vibrating part from the center to the edge. At this time, because both the folding ring portion and the elastic member are independent and directly suppressing the swinging of the vibrating part, the supporting and centering role of both on the vibrating part can be fully utilized, thereby effectively reducing the phenomenon of the vibrating part swinging from the center to the edge, thereby reducing sound distortion and effectively ensuring the sound effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram showing a sound-generating device according to an embodiment of the present invention from one perspective;

[0039] Figure 2 for Figure 1 Schematic diagram of the sound-generating device from another perspective;

[0040] Figure 3 for Figure 1 A schematic cross-sectional view of a sound-generating device;

[0041] Figure 4A schematic diagram of a passive radiator according to an embodiment of the present invention from one perspective;

[0042] Figure 5 A schematic diagram of another perspective of an embodiment of a passive radiator of the present invention;

[0043] Figure 6 It is a structural schematic diagram of the shell of the sound-generating device of the present invention.

[0044] Description of Figure Numbers:

[0045] Label name Label name 100 sound-generating equipment 311 Vibration Department 10 case 313 Ring part 11 Accommodation cavity 315 counterweight 13 Sound hole 317 Fixed part 15 Through hole 319 First step 17 Socket 33 elastic parts 19 Second step 331 Elastic part 30 Passive radiators 333 Connection 31 diaphragm 50 speaker

[0046] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] Please refer to Figures 1 to 4 The present invention proposes a passive radiator 30, which is applied to a sound-emitting device 100. The sound-emitting device 100 can be a speaker, or of course a tablet computer, a television, or a device that has a sound-emitting function. The sound-emitting device 100 includes a shell 10. In one embodiment of the present invention, the passive radiator 30 includes a diaphragm 31 and an elastic member 33. The diaphragm 31 includes a vibration part 311 and a folding ring part 313. The folding ring part 313 is connected to the edge of the vibration part 311 and is arranged around the circumference of the vibration part 311. One end of the elastic member 33 is connected to the vibration part 311, and the other end is used to connect to the shell 10.

[0052] In one embodiment of the present invention, the vibration portion 311 of the diaphragm 31 can be used to be driven by the airflow in the shell 10 of the sound-emitting device 100, so as to radiate bass toward the outside of the shell 10, thereby enhancing the low-frequency performance of the sound-emitting device 100. The material of the vibration portion 311 can be rubber, silicone or other plastic materials with integral elasticity, so that it can be more easily driven by the airflow in the shell 10 of the sound-emitting device 100 to produce sound. The shape of the vibration portion 311 can be square, rectangular, circular or runway-shaped, so that the shape of the vibration portion 311 is relatively regular, which is conducive to its processing and molding. Of course, the present application is not limited to this, and the vibration portion 311 can also be set in other shapes. The cross-section of the folding ring portion 313 can be specifically set in a semicircular shape to form a certain elasticity, so that it can be used to support and maintain the vibration portion 311, so that the vibration portion 311 can stably vibrate along its axial direction to produce sound. The material of the folding ring portion 313 can be the same as that of the vibrating portion 311, such as rubber, silicone, or other plastic materials with integral elasticity, so that the diaphragm 31 can be made directly from a single material, improving the convenience of processing and molding. The circumferential extension of the vibrating portion 311 can be formed into a square, rectangular, circular, or racetrack shape that matches the shape of the vibrating portion 311, and the specific shape can be adapted according to the shape of the vibrating portion 311. In addition, the folding ring portion 313 and the vibrating portion 311 can be integrally configured to enhance the strength of the connection between the two, thereby facilitating a longer service life and improving the stability of the folding ring portion 313 in supporting and centering the vibrating portion 311 (i.e., stabilizing the axis of the vibrating portion 311 in a straight line). At the same time, such a configuration also allows the two to be manufactured through integral molding, simplifying the processing technology for both, thereby facilitating improved production efficiency of the diaphragm 31. The elastic member 33 can be used to further support and maintain the vibrating portion 311, further facilitating the vibrating portion 311 to vibrate and produce sound stably along its axial direction. The end of the elastic member 33 away from the diaphragm 31 can be directly connected to the housing 10 , or can be indirectly connected, as long as the elastic member 33 can be fixed to the housing 10 .

[0053] When the passive radiator 30 of the technical solution of the present invention is used in the sound-emitting device 100, the diaphragm 31 of the passive radiator 30 includes a folded ring portion 313 arranged around the outer side of the vibrating portion 311. The cross-section of the folded ring portion 313 is roughly a semicircular arc structure and has a certain degree of elasticity. This allows the vibrating ring portion to effectively reset the vibrating portion 311 when it is driven by the airflow within the housing 10 of the sound-emitting device 100, thereby ensuring that the vibrating portion 311 has good compliance during the vibration process. At the same time, when the vibrating portion 311 tends to swing from the center to the edge, the folded ring portion 313 can also generate an elastic force opposite to the swinging vibration trend, thereby supporting and maintaining the vibrating portion 311, so that the vibrating portion 311 vibrates mainly along its axial direction when driven by the airflow within the housing 10 of the sound-emitting device 100, reducing the phenomenon of the vibrating portion 311 swinging from the center to the edge. Furthermore, the passive radiator 30 also includes an elastic member 33, one end of which is directly connected to the vibration part 311, and the other end is used to connect to the housing 10. At this time, the elastic member 33 can also directly elastically suppress the swing vibration of the vibration part 311 from the center to the edge, thereby playing a supporting and centering role, so as to reduce the phenomenon of the vibration part 311 swinging from the center to the edge. In short, the passive radiator 30 in this embodiment is provided with the folding ring portion 313 on the diaphragm 31 and the elastic member 33 of the vibration part directly connected to the diaphragm, so that both the folding ring portion 313 and the elastic member 33 can promptly and directly suppress the swing vibration of the vibration part 311 from the center to the edge. At this time, since both the folding ring portion 313 and the elastic member 33 independently and directly suppress the swing of the vibration portion, the supporting and centering functions of both on the vibration portion can be fully utilized, thereby effectively reducing the phenomenon of the vibration portion 311 swinging from the center toward the edge, thereby reducing sound distortion and effectively ensuring the sound effect.

[0054] Please refer to Figure 3 and Figure 4 In one embodiment of the present invention, the elastic member 33 is extended from the center of the vibration portion 311 toward the edge of the vibration portion 311 .

[0055] In this embodiment, the elastic member 33 extends from the center of the vibrating portion 311 toward the edge of the vibrating portion 311. In other words, the extension direction of the elastic member 33 is perpendicular to the axial direction of the vibrating portion 311. In this case, the elastic member 33 primarily applies an elastic force from the edge toward the center of the vibrating portion 311. This allows the elastic force of the elastic member 33 to effectively suppress the oscillating vibration of the vibrating portion 311 from the center toward the edge, thereby significantly reducing the oscillating vibration of the vibrating portion 311 from the center toward the edge. At the same time, it does not affect the axial vibration of the vibrating portion 311, thereby ensuring the sound quality of the vibrating portion 311. Furthermore, the elastic member 33 and the diaphragm are relatively compact, which facilitates the subsequent installation of the passive radiator 30 within the limited space of the housing 10 of the sound-emitting device 100. Of course, it should be noted that the present application is not limited to this embodiment. In other embodiments, the extension direction of the elastic member 33 may also be arranged at an acute angle to the direction from the center toward the edge of the vibrating portion 311.

[0056] Please refer to Figure 4 In one embodiment of the present invention, the number of the elastic members 33 is at least two, and the at least two elastic members 33 are evenly distributed around the center of the vibration portion 311 .

[0057] In this embodiment, the provision of at least two elastic members 33 increases the elastic restraint on the vibrating portion 311, thereby facilitating improved support and centering of the vibrating portion 311, ensuring that the vibrating portion 311 effectively vibrates and produces sound only along its axial direction. The even distribution of at least two elastic members 33 around the center of the vibrating portion 311 ensures a relatively uniform distribution of the elastic restraint on the vibrating portion 311 in all directions, thereby reducing the possibility of asymmetric vibration of the vibrating portion 311 from its center toward the edge, which could cause distortion in the sound emitted by the vibrating portion 311. To balance the support and centering effect of the elastic members 33 on the vibrating portion 311, as well as the ease of installation of the elastic members 33 on the vibrating portion 311 and subsequent installation of the elastic members 33 on the housing 10 of the sound-generating device 100, the number of elastic members 33 can be two, one located on opposite sides of the vibrating portion 311. Alternatively, the number of elastic members 33 can be four, one located on four opposite sides of the vibrating portion 311. Of course, the present application is not limited thereto. In other embodiments, the number of the elastic members 33 may be eight or more.

[0058] Please refer to Figures 3 to 5 In one embodiment of the present invention, the elastic member 33 and the folding ring portion 313 are respectively connected to the two opposite surfaces of the vibration portion 311 .

[0059] In this embodiment, the folding ring portion 313 is disposed on one of the two opposing surfaces of the vibrating portion 311, thereby providing support and centering for the vibrating portion 311 on one side of that surface. The elastic member 33 is disposed on the other of the two opposing surfaces of the vibrating portion 311, thereby also providing support and centering for the vibrating portion 311 on the other side of that other surface. Therefore, the elastic member 33 and folding ring portion 313 are respectively located on two opposing surfaces of the vibrating portion 311, thereby exerting a force on both opposing surfaces to suppress the vibrating portion 311 from swaying toward the edges. This results in a more even distribution of the force acting on the vibrating portion 311, providing a more stable support and centering for the vibrating portion 311, thereby further enhancing the suppression of swaying of the vibrating portion 311 from the center toward the edges. At the same time, when the passive radiator 30 is installed in the housing 10 of the sound-emitting device 100, the surface of the vibration part 311 provided with the folding ring portion 313 will not be blocked by the elastic member 33 when radiating sound toward the outside, thereby also helping to improve the sound effect. Moreover, arranging the elastic member 33 and the folding ring portion 313 on opposite sides of the vibration part 311 can also help to make the distribution of the elastic member 33 and the folding ring portion 313 more compact, thereby helping to reduce the overall volume of the passive radiator 30, so as to further improve its convenience in installation in the limited space of the housing 10 of the sound-emitting device 100. Of course, it should be noted that the application is not limited to this. In other embodiments, the elastic member 33 and the folding ring portion 313 can also be arranged on the same surface, or the folding ring portion 313 can be connected to the side circumference of the vibration part 311 adjacent to the elastic member.

[0060] In one embodiment of the present invention, the elastic member 33 and the vibrating portion 311 of the diaphragm 31 are integrally formed.

[0061] In this embodiment, the elastic member 33 and the diaphragm 31 are integrally configured to enhance the strength of the connection between the two, thereby extending their service life and improving the stability of the elastic member 33 in supporting and centering the vibrating portion 311. Furthermore, this configuration allows the two to be manufactured through an integral molding process, simplifying the processing of both, thereby improving the production efficiency of the passive radiator 30. Of course, it should be noted that the present application is not limited to this embodiment. In other embodiments, the elastic member 33 and the diaphragm 31 may also be separate components, which can then be glued together.

[0062] Please refer to Figure 3 and Figure 4In one embodiment of the present invention, the elastic member 33 includes an elastic portion 331 and a connecting portion 333, and the elastic portion 331 is made of elastic material; the elastic member 33 connects the vibration portion 311 and the shell 10 through the connecting portion 333 and the end of the elastic portion 331 without the connecting portion 333, or the elastic member 33 connects the vibration portion 311 and the shell through the connecting portions 33 on the opposite ends of the elastic portion 331.

[0063] In this embodiment, the elastic member 33 comprises an elastic portion 331 and a connecting portion 333. The elastic portion 331 is made of an elastic material, which provides the elastic member 33 with good elasticity, thereby effectively suppressing the center-to-edge swing of the vibrating portion 311. If the connecting portion 333 is made of a rigid material and only has the connecting portion 333 at one end of the elastic member 331, the elastic member can connect the vibrating portion 311 and the housing 10 via the connecting portion 333 and the end of the elastic member 331 not having the connecting portion 333. That is, the connecting portion 333 is connected to one of the vibrating portion 311 and the housing 10, while the end of the elastic member 331 not having the connecting portion 333 is connected to the other of the vibrating portion 311 and the housing 10. In this case, the rigid connecting portion 333 supports or supports the elastic member 331, thereby increasing the overall strength of the elastic member 33 and ensuring a more stable placement, thereby properly and reliably suppressing the center-to-edge swing of the vibrating portion 311. At the same time, the stability of the connection between the elastic member 33 and the diaphragm 31 or the housing 10 of the sound-emitting device 100 is also improved. To further enhance the overall strength and connection stability of the elastic member 33, two connecting portions 333 can be provided. In this case, the two connecting portions 333 are respectively connected to the ends of the elastic member 331, one of which is connected to the vibrating portion 311, and the other is used to connect to the housing 10. The material of the elastic member 331 and the diaphragm 31 can be the same, so that the two have a relatively compatible elastic force and a consistent degree of vibration in the axial direction of the vibrating portion 311, thereby helping to avoid hindering the normal axial vibration and sound generation of the vibrating portion 311. Specifically, the material of the elastic member 331 can also be silicone, rubber, or other plastic materials with a certain quality. Of course, the material of the elastic member 331 and the material of the diaphragm 31 can also be different. The material of the two connecting portions 333 can be metal or a hard plastic with a certain strength. In addition, it should be further explained that the present application is not limited thereto. In other embodiments, the entire material of the elastic member 33 may be elastic material.

[0064] Please refer to Figure 3 and Figure 4In one embodiment of the present invention, in the extension direction of the elastic portion 331 , the elastic portion 331 is bent back and forth multiple times in a direction perpendicular to the extension direction of the elastic portion 331 to form a curved structure.

[0065] In this embodiment, the elastic portion 331 is arranged in a curved structure, which can make it have better elasticity, so as to better elastically suppress the swing of the vibration portion 311 from the center to the edge. At the same time, such an arrangement can also enable the elastic portion 331 to have a larger deformation stroke when the vibration portion 311 vibrates along its axial direction, thereby avoiding the obstruction of the normal vibration and sound generation of the vibration portion 311 in the axial direction due to the limited deformation stroke, so as to ensure the compliance of the vibration portion 311 in its axial direction. Among them, the various bends of the elastic portion 331 can be roughly formed into a U-shape or a semicircle, etc., so that the curved structure of the elastic portion 331 is relatively simple, which is conducive to improving the convenience of processing and forming the elastic member 33. Of course, it should be noted that the present application is not limited to this. In other embodiments, in the extension direction of the elastic portion 331, the elastic portion 331 can also be arranged to extend in a spiral.

[0066] Please refer to Figure 3 and Figure 4 In one embodiment of the present invention, the connecting portion 333 is configured as a flat plate structure.

[0067] In this embodiment, the connecting portion 333 is provided in a flat plate-like structure, which can make the structure of the connecting portion 333 relatively simple, thereby further improving the convenience of processing and molding the elastic member 33. At the same time, the connecting portion 333 provided in this way is also convenient for connection and fixation with the vibration portion 311 of the diaphragm 31 and / or the shell 10 of the sound-emitting device 100. Among them, the connecting portion 333 for connecting to the vibration portion 311 can be extended along the axial direction of the vibration portion 311, and the connecting portion 333 for connecting to the shell 10 can be extended in the axial direction of the vertical vibration portion 311, or directly extended along the axial direction of the vibration portion 311, so as to further make the overall structure of the elastic portion 331 more regular.

[0068] Please refer to Figure 3 and Figure 4 In one embodiment of the present invention, the width of the elastic portion 331 is the same as the width of the connecting portion 333 .

[0069] In this embodiment, the widths of the elastic part 331 and the connecting part 333 are relatively set, which can make the overall structure of the elastic part 33 more regular, thereby facilitating further improvement in the convenience of its processing and forming. At the same time, such a setting is also beneficial for taking into account the stability of the connection between the elastic part 33, the diaphragm 31 and the housing 10 of the sound-emitting device 100 on the basis of the good elasticity of the elastic part 33. For the same reason, the thickness of the elastic part 331 and the thickness of the connecting part 333 can be set in the same manner. Of course, it should be noted that the present application is not limited to this, and in other embodiments thereof, the width of the elastic part 331 and the width of the connecting part 333, as well as the width of the elastic part 331 and the thickness of the connecting part 333 can also be set in different ways. In addition, when the elastic part 331 is set to extend in a spiral, the elastic part 331 and the two connecting parts 333 can both be columnar structures.

[0070] In one embodiment of the present invention, the elastic portion 331 and the connecting portion 333 are integrally formed.

[0071] In this embodiment, the elastic portion 331 and the connecting portion 333 are arranged as an integral structure, which can increase the strength of the connection between the two, thereby further improving the overall strength of the elastic member 33 and increasing the service life and the stability of the support and centering of the vibrating portion 311. At the same time, such a configuration also allows the two to be manufactured through one-piece molding, simplifying the processing technology of both and helping to improve production efficiency. Of course, it should be noted that the present application is not limited to this. In other embodiments, the elastic portion 331 and the two connecting portions 333 can also be arranged as separate bodies and further bonded and fixed by glue.

[0072] Please refer to Figure 3 In one embodiment of the present invention, the diaphragm 31 further includes a counterweight 315 , and the counterweight 315 is connected to the vibration part 311 .

[0073] In this embodiment, the counterweight 315 can be used to conveniently add various masses to the vibration portion 311, thereby varying the amplitude of the vibration portion 311 and adjusting the sound produced by the vibration portion 311, thereby further enhancing the sound quality. The counterweight 315 can be made of metal, such as iron or steel. Of course, the counterweight 315 can also be made of the same material as the diaphragm 31.

[0074] Please refer to Figure 3 In one embodiment of the present invention, the counterweight 315 is embedded inside the vibration part 311 .

[0075] In this embodiment, the counterweight 315 is embedded in the inner side of the vibration part 311, so that the vibration part 311 can play an isolation and guarantee role for the configuration block, thereby helping to reduce the possibility of damage. At the same time, such a setting also allows the counterweight 315 and the vibration part 311 to be manufactured by integral molding, which helps to improve the stability and convenience of the connection between the two. Of course, the present application is not limited to this. In other embodiments, the counterweight 315 can also be set on the surface of the vibration part 311 provided with the elastic member 33.

[0076] Please refer to Figures 3 to 5 In one embodiment of the present invention, the diaphragm 31 further includes a fixing portion 317 , which is connected to the outer side of the folding ring portion 313 and is arranged around the circumference of the folding ring portion 313 . The fixing portion 317 is used to be connected to the housing 10 .

[0077] In this embodiment, a fixing portion 317 is provided around the outer side of the folding ring portion 313, so that a connection position can be provided through the fixing portion 317 so as to be connected to the housing 10 of the sound-emitting device 100, thereby facilitating the connection convenience of the diaphragm 31 on the housing 10. At the same time, the fixing portion 317 at this time can be a flat plate-shaped structure, and can also increase the connection area with the housing 10, thereby facilitating the stability of the connection between the two. The fixing portion 317, the folding ring portion 313 and the vibration portion 311 can also be provided as an integral structure and made of the same material to improve the convenience of processing and forming the diaphragm 31. In addition, it should be noted that when the diaphragm 31 is not provided with the fixing portion 317, the diaphragm 31 can be directly connected to the housing 10 of the sound-emitting device 100 through the outer side of the edge of the folding ring portion 313. Of course, the diaphragm 31 can also be directly clamped and fixed by the elastic member 33 and the shell after a connecting portion 331 of the elastic member 33 is connected to the shell 10 of the sound-emitting device 100, so that the diaphragm 31 does not need to have a further connection relationship with the shell 10.

[0078] Please refer to Figure 3 and Figure 5 In one embodiment of the present invention, the edge of the fixing portion 317 is recessed to form a first step 319 , and the first step 319 is used to connect to the housing 10 .

[0079] In this embodiment, the provision of the first step 319 allows the fixing portion 317 to function as a limiter when connected to the housing 10 of the sound-emitting device 100. That is, a portion of the structure of the housing 10 can be embedded within the first step 319 to abut and limit the position, thereby facilitating improved accuracy and stability in the installation of the diaphragm 31 on the housing 10. The first step 319 can be disposed circumferentially around the fixing portion 317 so as to abut and limit the position of the housing 10 in both the circumferential direction and the housing, thereby improving the limiting effect. This can also simplify the structure of the fixing portion 317, thereby facilitating improved processing and forming convenience.

[0080] Please refer to Figures 1 to 6 The present invention also proposes a sound-emitting device 100, which includes a shell 10, a speaker 50 and a passive radiator 30. The specific structure of the passive radiator 30 refers to the above-mentioned embodiment. Since the present sound-emitting device 100 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, a housing 11 is formed in the shell 10, and the shell 10 is also formed with a sound outlet 11 and a through hole 13 connected to the housing 11; the speaker 50 is arranged in the housing 11 and covers the sound outlet 11; the passive radiator 30 is arranged in the housing 11, the diaphragm 31 of the passive radiator 30 covers the through hole 13, and the elastic member 33 of the passive radiator 30 is connected to the shell 10 at one end away from the diaphragm 31. In addition, the sound-emitting device 100 can be a speaker, and of course it can also be a tablet computer, a TV or a device that enables it to have a sound-emitting function. In some embodiments, the passive radiator 30 may be disposed outside the housing 10 .

[0081] In one embodiment of the present invention, the elastic member 33 and the housing 10 are bonded and fixed.

[0082] In this embodiment, the elastic member 33 and the housing 10 are bonded together using glue, eliminating the need for complex connecting structures between the two. This helps ensure that the structures of the elastic member 33 and the housing 10 are not significantly affected. Furthermore, the bonding method using glue is relatively simple, thereby facilitating the convenient connection between the elastic member 33 and the housing 10. Specifically, a connecting portion 333 of the elastic member 33 is bonded together with the housing 10. To facilitate the application of glue, the convenience of connecting the elastic member 33 and the housing 10 is further enhanced. In one embodiment of the present invention, the inner wall of the housing 10 is provided with a plug-in slot 17. Glue can be applied to the plug-in slot 17, and then the connecting portion 333 of the elastic member 33 can be inserted into the plug-in slot 17. In this case, bonding the elastic member 33 and the slot 17 with glue can also increase the connection area between the two, thereby further improving the stability of the connection. Of course, it should be noted that the present application is not limited thereto. In other embodiments, it is also possible to directly insert and fix the elastic member 33 and the plug-in slot 17 on the housing 10 in an interference fit.

[0083] In one embodiment of the present invention, the fixing portion 317 of the diaphragm 31 and the housing 10 are fixed by bonding.

[0084] In this embodiment, the fixing portion 317 of the diaphragm 31 and the shell 10 are bonded and fixed by glue, so that there is no need to set a more complicated connection structure on the two, which is beneficial to ensuring the self-structure of the diaphragm 31 and the shell 10. Moreover, the bonding and fixing by glue also makes the connection between the diaphragm 31 and the shell 10 relatively simple, which is beneficial to the convenience of connection. Moreover, it is also convenient to ensure the sealing performance between the diaphragm 31 and the shell 10, so that there is no need to further set a seal between the two, which is beneficial to reduce the manufacturing cost of the sound-generating device. Of course, it should be noted that the present application is not limited to this. In other embodiments, the fixing portion 317 of the diaphragm 31 and the shell 10 can also be connected by screws. In this case, a seal can be provided between the fixing portion 317 and the shell 10 to play a buffering and sealing role.

[0085] Please refer to Figure 3 and Figure 6 In one embodiment of the present invention, the inner wall surface of the through hole 13 of the shell 10 is recessed to form a second step 19 , the second step 19 is arranged around the through hole 13 , and part of the structure of the fixing portion 317 of the diaphragm 31 is embedded in the second step 19 .

[0086] In this embodiment, the second step 19 is provided so that the fixing portion 317 can play a limiting role through the second step 19 when it is connected to the shell 10 of the sound-emitting device 100. That is, part of the structure of the fixing portion 317 can be embedded in the second step 19 to abut and limit it, which is beneficial to improve the accuracy and stability of the installation of the diaphragm 31 on the shell 10. Among them, when the fixing portion 317 is provided with a first step 319, the first step 319 can be used to cooperate with the second step 19 for abutment and limitation. That is, when the fixing portion 317 of the diaphragm 31 and the shell 10 are adhesively fixed, please refer to Figure 2 A glue layer 70 may be provided on the first step 319 and the second step 19 to bond the two together.

[0087] Please refer to Figure 3 and Figure 6 In one embodiment of the present invention, the accommodating cavity 11 has two cavity walls that are opposite to each other, and the sound outlet 11 and the through hole 13 are respectively provided in the two cavity walls that are opposite to each other of the accommodating cavity 11 .

[0088] In this embodiment, the sound outlet 11 and the through hole 13 are respectively provided on two opposite walls of the accommodating chamber 11, so that the speaker 50 and the passive radiator 30 can be respectively located on opposite sides of the housing 10 (that is, the speaker 50 is installed on the wall of the accommodating chamber 11 where the sound outlet 11 is provided, and the diaphragm 31 of the passive radiator 30 is installed on the wall of the accommodating chamber 11 where the through hole 13 is provided), which fully benefits the space in the thickness direction of the housing 10, so as to reduce the overall volume of the sound-emitting device 100. At the same time, such a configuration also ensures that the end of the elastic member 33 of the passive radiator 30 away from the diaphragm 31 will not be affected by the interference of the speaker 50 when connected to the housing 10, thereby facilitating the connection between the elastic member 33 and the housing 10. In addition, it is also conducive to the coaxial design of the speaker 50 and the passive radiator 30, so as to avoid the phenomenon of channel separation and enable a better subjective listening experience. At this time, the center line of the through hole 13 and the center line of the sound outlet 11 can be located on the same straight line to further improve the coaxiality of the speaker 50 and the passive radiator 30. The shell 10 can be a cubic structure, and the sound outlet 11 and the through hole 13 can be respectively opened on the two side walls of the shell 10 that are opposite to each other. At this time, in order to reduce the distance between the elastic member 33 and the shell 10 and improve the convenience of connection and reduce the space occupied, the end of the elastic member 33 away from the diaphragm 31 is connected to the cavity wall of the accommodating cavity 11 where the through hole 13 is formed, or is connected to the cavity wall of the accommodating cavity 11 adjacent to the through hole 13. Of course, the shell 10 can also be a spherical structure, and the sound outlet 11 and the through hole 13 can be respectively opened on the two hemispherical parts separated by the plane where the center line of the shell 10 is located. At this time, in order to reduce the distance between the elastic member 33 and the shell 10 and improve the convenience of connection and reduce the space occupied, the end of the elastic member 33 away from the diaphragm 31 can be connected to the hemispherical part of the shell 10 provided with a through hole 13, or connected to the connection between the two hemispherical parts. In addition, it should be noted that the present application is not limited to this. In other embodiments, when the shell 10 has a relatively large accommodating cavity 11, when the speaker 50 is a square structure, the speaker 50 and the passive radiator 30 can also be arranged on the same cavity wall of the accommodating cavity 11, or on two adjacent cavity walls. When the speaker 50 is a spherical structure, the speaker 50 and the passive radiator 30 can also be arranged in one of the two hemispherical parts of the shell 10 separated by the plane where the center line is located.

[0089] Please refer to Figure 3 and Figure 6In one embodiment of the present invention, the passive radiator 30 can be installed as follows: a slot 17 is formed inside the housing 10, glue is then added to the slot 17, and the end of the elastic member 33 away from the diaphragm 31 is inserted into the slot 17. After the glue solidifies, the elastic member 33 and the housing 10 are fixed. Glue is then added to the second step 19 of the housing 10, and the first step 319 of the fixing portion 317 of the diaphragm 31 is brought into contact with the end. After the glue solidifies, the diaphragm and the housing 10 are fixed, thereby completing the installation of the passive radiator 30 on the housing 10 of the sound-emitting device 100.

[0090] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A passive radiator, applied to a sound-generating device, wherein the sound-generating device comprises a housing, characterized in that: The passive radiator comprises: a diaphragm, the diaphragm comprising a vibrating portion and a rim portion, the rim portion being connected to an edge of the vibrating portion and disposed around the circumference of the vibrating portion, the vibrating portion being capable of vibrating when driven by airflow within the housing of the sound-generating device; and An elastic member, one end of which is connected to the vibration part, and the other end of which is used to be connected to the shell.

2. The passive radiator according to claim 1, wherein The elastic member is extended along the center of the vibration part toward the edge of the vibration part; And / or, the number of the elastic members is at least two, and the at least two elastic members are evenly distributed around the center of the vibration part; And / or, the elastic member and the folding ring are respectively connected to two surfaces opposite to the vibrating portion; And / or, the elastic member and the vibration part are arranged in an integrated structure.

3. The passive radiator according to claim 1, wherein The elastic member comprises: an elastic portion, wherein the elastic portion is made of an elastic material; and a connecting portion, wherein at least one of the two opposite ends of the elastic portion is connected to the connecting portion, and the connecting portion is made of a rigid material; The elastic member connects the vibration part and the housing through the connection part and the end of the elastic part without the connection part, or the elastic member connects the vibration part and the housing through the connection parts at opposite ends of the elastic part.

4. The passive radiator according to claim 3, wherein In the extension direction of the elastic portion, the elastic portion is bent back and forth multiple times in a direction perpendicular to the extension direction of the elastic portion to form a curved structure; And / or, the material of the elastic portion is the same as that of the diaphragm; And / or, the connecting portion is arranged in a flat plate structure; And / or, the width of the elastic portion is the same as the width of the connecting portion; And / or, the thickness of the elastic portion is the same as the thickness of the connecting portion; And / or, the elastic portion and the connecting portion are arranged in an integrated structure; And / or, both opposite ends of the elastic portion are connected to the connecting portion.

5. The passive radiator according to any one of claims 1 to 4, characterized in that The diaphragm further includes a counterweight block connected to the vibration part.

6. The passive radiator according to claim 5, wherein The counterweight is embedded in the inner side of the vibration part; And / or, the diaphragm also includes a fixing portion, which is connected to the outer side of the folding ring portion and is arranged around the circumference of the folding ring portion. The edge of the fixing portion is recessed to form a first step, and the first step is used to connect to the shell.

7. A sound-generating device, characterized in that: include: A housing having an accommodating cavity formed therein and a sound outlet hole and a through hole communicating with the accommodating cavity; and a speaker, the speaker being disposed in the accommodating cavity and covering the sound outlet; and A passive radiator, wherein the passive radiator is arranged in the accommodating cavity, and the passive radiator is the passive radiator as described in any one of claims 1 to 6, the diaphragm of the passive radiator covers the through hole, and the elastic member of the passive radiator is connected to the shell at one end away from the diaphragm.

8. The sound generating device according to claim 7, wherein: The elastic member and the housing are bonded and fixed; And / or, the inner wall surface of the housing is provided with an inserting groove, and the elastic member is inserted into the inserting groove; And / or, the fixing portion of the diaphragm is adhesively fixed to the housing; And / or, the inner wall surface of the housing provided with the through hole is recessed to form a second step, the second step is arranged around the through hole, and a part of the structure of the fixing portion of the diaphragm is embedded in the second step.

9. The sound generating device according to claim 7, wherein: The accommodating cavity has two cavity walls arranged opposite to each other, and the sound outlet hole and the through hole are respectively arranged on the two cavity walls arranged opposite to each other of the accommodating cavity.

10. The sound generating device according to claim 9, wherein One end of the elastic member away from the diaphragm is connected to the cavity wall of the accommodating cavity where the through hole is formed, or is connected to the cavity wall of the accommodating cavity adjacent to the through hole; And / or, the center line of the through hole and the center line of the sound outlet hole are located on the same straight line.

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