Loudspeaker
Patent Information
- Application Number
- CN202423202535.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-25
AI Technical Summary
[0003]相关技术中,对于无边框扬声器,其支架与音膜组件之间的连接强度不足
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Figure CN223666479U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of loudspeaker technology, and in particular to a loudspeaker. Background Technology
[0002] A loudspeaker, commonly known as a "horn," is a commonly used electroacoustic transducer that converts electrical signals into sound signals. Audio electrical energy vibrates its diaphragm component through electromagnetic, piezoelectric, or electrostatic effects, resonating with the surrounding air to produce sound.
[0003] In related technologies, the connection strength between the bracket and the diaphragm assembly of frameless speakers is insufficient. Utility Model Content
[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a loudspeaker capable of improving the connection strength between the support and the diaphragm assembly.
[0005] The loudspeaker according to a first aspect embodiment of this application includes:
[0006] Diaphragm assembly;
[0007] A bracket has a receiving cavity, a sound outlet, and a glue-blocking portion. The sound outlet communicates with the receiving cavity. The bracket also has a connecting surface surrounding the sound outlet. The diaphragm assembly covers the sound outlet and is connected to the connecting surface. The glue-blocking portion is disposed around the edge of the sound outlet and protrudes from the connecting surface along the opening direction of the sound outlet.
[0008] Wherein, a plane perpendicular to the opening direction of the sound-emitting port is defined as a reference plane, the projection of the adhesive-blocking part on the reference plane is the first projection, the projection of the connecting surface on the reference plane is the second projection, and the first projection and the second projection do not completely coincide.
[0009] The speaker according to the embodiments of this application has at least the following beneficial effects:
[0010] A sealant is provided at the edge of the sound-emitting port of the bracket. The sealant protrudes from the connection surface between the diaphragm assembly and the bracket along the opening direction of the sound-emitting port, so that the sealant and the connection surface are arranged crosswise. During the bonding process between the bracket and the diaphragm assembly, the sealant arranged crosswise with the connection surface can at least prevent glue from overflowing from one side between the bracket and the diaphragm assembly, which helps to increase the amount of glue remaining between the bracket and the diaphragm assembly, thereby improving the connection strength between the bracket and the diaphragm assembly.
[0011] According to some embodiments of this application, the adhesive-blocking portion extends continuously along the circumference of the sound-emitting port.
[0012] According to some embodiments of this application, the diaphragm assembly includes a copper ring and a sound-emitting diaphragm connected to each other, the copper ring is disposed between the sound-emitting diaphragm and the support, the copper ring is connected to the connecting surface, and the copper ring is attached to the adhesive-blocking portion.
[0013] According to some embodiments of this application, the radial dimension of the diaphragm assembly is larger than the radial dimension of the support.
[0014] According to some embodiments of this application, the difference between the radial dimension of the diaphragm assembly and the radial dimension of the support is in the range of 0.2 mm to 2 mm.
[0015] According to some embodiments of this application, the bracket has a positioning ear that protrudes radially from the bracket on the side of the bracket opposite to the receiving cavity, and the speaker includes a cover that is connected to the positioning ear.
[0016] According to some embodiments of this application, the number of positioning ears is multiple, and the multiple positioning ears are arranged at intervals along the circumference of the bracket.
[0017] According to some embodiments of this application, the positioning ear protrudes radially from the diaphragm assembly along the support.
[0018] According to some embodiments of this application, the size of the portion of the positioning ear that protrudes radially from the diaphragm assembly along the support ranges from 0.2 mm to 6 mm.
[0019] According to some embodiments of this application, the height of the adhesive-blocking portion protruding from the bracket ranges from 0.2mm to 1.5mm.
[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0021] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0022] Figure 1 This is a schematic diagram of an explosion of a loudspeaker in one embodiment of this application;
[0023] Figure 2 This is a schematic diagram of the assembly of the diaphragm component and the bracket in one embodiment of this application. The part of the bracket that is covered by the bracket is indicated by a dashed line.
[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0025] Figure 4 for Figure 2 A schematic diagram of the structural cross-section at point BB.
[0026] Figure label:
[0027] 1. Diaphragm assembly; 11. Copper ring; 12. Sound-emitting diaphragm; 2. Support; 21. Receiving cavity; 22. Sound outlet; 23. Adhesive-resistant part; 24. Connecting surface; 25. Positioning ear; 3. Protective cover. Detailed Implementation
[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown 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.
[0029] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.
[0030] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0032] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.
[0033] In related technologies, for frameless speakers, the outer diameter of the bracket is usually the same as the outer diameter of the diaphragm assembly. This makes it easy for glue to overflow between the bracket and the diaphragm assembly during the bonding process, resulting in less glue remaining between the bracket and the diaphragm assembly and reducing the connection strength between the bracket and the diaphragm assembly.
[0034] In view of this, this application provides a loudspeaker in which a glue-blocking portion 23 is provided at the edge of the sound-emitting port 22 of the bracket 2. The glue-blocking portion 23 protrudes from the connection surface 24 connecting the diaphragm assembly 1 and the bracket 2 along the opening direction of the sound-emitting port 22, such that the glue-blocking portion 23 and the connection surface 24 are arranged intersectingly. During the bonding process between the bracket 2 and the diaphragm assembly 1, the glue-blocking portion 23, which is intersecting with the connection surface 24, can at least block glue overflowing from one side between the bracket 2 and the diaphragm assembly 1, which helps to increase the amount of glue remaining between the bracket 2 and the diaphragm assembly 1, thereby helping to improve the connection strength between the bracket 2 and the diaphragm assembly 1.
[0035] Figure 1 An exploded structure of a loudspeaker according to an embodiment of this application is shown. Specifically, the loudspeaker includes a diaphragm assembly 1 and a support 2. The support 2 supports the diaphragm assembly 1. When the diaphragm assembly 1 vibrates and causes the surrounding air to vibrate, the loudspeaker can emit a corresponding sound. The support 2 can be made of metal or other materials with a certain strength. The support 2 has a receiving cavity 21, which can be used to house the magnetic circuit assembly for electroacoustic conversion in the loudspeaker. The support 2 has a sound outlet 22 and a retaining portion 23, with the sound outlet 22 communicating with the receiving cavity 21. The support 2 also has a connecting surface 24 surrounding the sound outlet 22. The diaphragm assembly 1 covers the sound outlet 22 and is connected to the connecting surface 24. The retaining portion 23 is disposed around the edge of the sound outlet 22 and protrudes from the connecting surface 24 along the opening direction of the sound outlet 22, so that the retaining portion 23 and the connecting surface 24 are arranged intersectingly. For example, please refer to [reference needed]. Figure 1 and Figure 4 The adhesive-blocking part 23 can be arranged perpendicularly to the connecting surface 24.
[0036] Here, a plane perpendicular to the opening direction of the sound-emitting port 22 is defined as the reference plane, the projection of the adhesive-blocking part 23 on the reference plane is the first projection, and the projection of the connecting surface 24 on the reference plane is the second projection. The first projection and the second projection do not completely coincide.
[0037] For example, please refer to Figure 2 , Figure 3 and Figure 4 The first projection can be located on the side of the second projection close to the sound outlet 22, so that during the bonding process of the bracket 2 and the diaphragm assembly 1, the glue-blocking part 23 can reduce the possibility of glue overflowing from between the bracket 2 and the diaphragm assembly 1 flowing into the receiving cavity 21.
[0038] For example, the first projection may be located on the side of the second projection away from the sound outlet 22, so that during the bonding process of the bracket 2 and the diaphragm assembly 1, the glue-blocking part 23 can reduce the possibility of glue overflowing from between the bracket 2 and the diaphragm assembly 1 flowing out of the speaker.
[0039] For example, the adhesive blocking portion 23 can be arranged radially spaced along the bracket 2, and the connecting surface 24 is located between the spaced adhesive blocking portions 23, that is, the second projection is located between the spaced first projection, so that during the bonding process of the bracket 2 and the diaphragm assembly 1, the adhesive blocking portion 23 can reduce the possibility of glue overflowing from between the bracket 2 and the diaphragm assembly 1 flowing into the receiving cavity 21 and reduce the possibility of glue flowing out of the speaker.
[0040] For example, the shape of the speaker can be as follows Figure 1 and Figure 2 The circle shown can also be elliptical, oblong, or square.
[0041] For example, the speaker can be a speaker enclosure, such as a Bluetooth speaker, computer speaker, desktop speaker, karaoke speaker, wireless speaker, portable speaker, outdoor speaker, waterproof speaker, car speaker, high linearity speaker, ultra-low distortion speaker, low frequency extension speaker, spatial audio speaker, bass speaker, virtual bass speaker, auxiliary acoustic enhancement speaker, low power speaker, wireless audio speaker, voice control speaker, smart interactive speaker, voice assistant speaker, voice wake-up speaker, gesture recognition speaker, voice control speaker, HiFi speaker, stereo surround speaker, stereo amplifier speaker, two-channel stereo speaker, artificial intelligence noise reduction speaker, upstream noise reduction speaker, downstream noise reduction speaker, etc.
[0042] In this embodiment, a glue-blocking portion 23 is provided at the edge of the sound-emitting port 22 of the bracket 2. The glue-blocking portion 23 protrudes from the connection surface 24 connecting the diaphragm assembly 1 and the bracket 2 along the opening direction of the sound-emitting port 22, such that the glue-blocking portion 23 and the connection surface 24 are arranged crosswise. During the bonding process between the bracket 2 and the diaphragm assembly 1, the glue-blocking portion 23, which is arranged crosswise with the connection surface 24, can at least block the glue overflowing from one side between the bracket 2 and the diaphragm assembly 1, which helps to increase the amount of glue remaining between the bracket 2 and the diaphragm assembly 1, thereby helping to improve the connection strength between the bracket 2 and the diaphragm assembly 1.
[0043] In one embodiment, please refer to Figure 1 and Figure 2 The adhesive-blocking part 23 extends continuously along the circumference of the sound outlet 22. The continuously extended adhesive-blocking part 23 has high strength and integrity, so as to increase the amount of glue residue during the bonding process between the bracket 2 and the diaphragm assembly 1, and reduce the possibility of damage to the adhesive-blocking part 23 protruding from the connecting surface 24 along the opening direction of the sound outlet 22 during the installation of the diaphragm assembly 1, thereby improving the yield of the loudspeaker.
[0044] It should be noted that the adhesive-blocking part 23 extends continuously along the circumference of the sound-emitting port 22, and can be arranged as follows: Figure 1 and Figure 2 The notched arc shown can be, for example, the two ends of the notch in the sealant 23 are the first end and the second end, respectively. The sealant 23 extends continuously from the first end to the second end along the circumference of the sound outlet 22. Furthermore, the bracket 2 may also have an opening that communicates with the notch in the sealant 23; both the opening and the notch are used to lead out the voice coil wire of the speaker. The sealant 23, extending continuously along the circumference of the sound outlet 22, can also be a continuous ring without any notches.
[0045] It is understood that the adhesive baffle 23 is not limited to being arranged to extend continuously along the circumference of the sound outlet 22. Exemplarily, there are multiple adhesive baffles 23, which are arranged at intervals along the circumference of the sound outlet 22.
[0046] In one embodiment, please refer to Figures 1-4 The diaphragm assembly 1 includes a copper ring 11 and a sound-emitting diaphragm 12 connected to each other. The copper ring 11 can be used to maintain the relatively soft sound-emitting diaphragm 12 in a certain shape, and can also make the sound-emitting diaphragm 12 vibrate along the axial direction of the speaker and limit the vibration of the sound-emitting diaphragm 12 along the radial direction of the speaker. The material of the sound-emitting diaphragm 12 can be natural fiber or artificial fiber. A copper ring 11 is disposed between the diaphragm 12 and the support 2. The copper ring 11 is connected to the connecting surface 24 and adheres to the adhesive-blocking part 23. On the one hand, during the bonding process between the support 2 and the diaphragm assembly 1, the adhesive overflowing from the copper ring 11 and the connecting surface 24 can flow to the space between the copper ring 11 and the adhesive-blocking part 23, thereby allowing the copper ring 11 and the adhesive-blocking part 23 to adhere to each other, increasing the bonding area between the support 2 and the diaphragm assembly 1, which is beneficial to improving the connection strength between the support 2 and the diaphragm assembly 1. On the other hand, the adhesive-blocking part 23, which adheres to the copper ring 11, can also play a positioning role for the copper ring 11, thereby reducing the possibility of sound displacement of the diaphragm assembly 1 during installation on the support 2, which is beneficial to improving the yield rate of the loudspeaker. Thirdly, the adhesive-blocking part 23 can also provide a certain degree of protection for the copper ring 11, so that when the diaphragm assembly 1 is subjected to external impact, the adhesive-blocking part 23 can share part of the external force, thereby reducing the possibility of damage to the diaphragm assembly 1.
[0047] For example, please refer to Figure 2 , Figure 3 and Figure 4 The inner diameter of the copper ring 11 is equal to the outer diameter of the rubber-blocking part 23.
[0048] It is understood that the copper ring 11 is not limited to being attached to the adhesive barrier 23. For example, the copper ring 11 may also maintain a preset distance from the adhesive barrier 23.
[0049] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The radial dimension of the diaphragm assembly 1 is larger than that of the bracket 2 along the same radial direction, so that when the first projection is located on the side of the second projection near the sound outlet 22, the diaphragm assembly 1 can protrude from the bracket 2. During the bonding process between the diaphragm assembly 1 and the bracket 2, the glue overflowing from both sides between the diaphragm assembly 1 and the bracket 2 can be blocked by the glue-blocking part 23 on the side near the sound outlet 22, while the glue on the side away from the sound outlet 22 can adhere to the part of the diaphragm assembly 1 that protrudes from the bracket 2 due to its own tension and adhesive force. This reduces the possibility of the glue overflowing from the diaphragm assembly 1 and the bracket 2 flowing to the outside of the speaker. Less glue flowing to the outside of the speaker results in a higher degree of cleanliness on the speaker's surface, thereby improving the speaker's production qualification rate.
[0050] It is understood that the radial dimension of the diaphragm assembly 1 is not limited to being greater than the radial dimension of the support 2. Exemplarily, the radial dimension of the diaphragm assembly 1 may also be less than or equal to the radial dimension of the support 2.
[0051] In one embodiment, please refer to Figure 3 and Figure 4 The difference between the radial dimension of the diaphragm assembly 1 and the radial dimension of the bracket 2 is in the range of 0.2mm to 2mm. During the bonding process between the diaphragm assembly 1 and the bracket 2, the glue overflowing from both sides between the diaphragm assembly 1 and the bracket 2 can be blocked by the glue-blocking part 23 on the side near the sound outlet 22, while the glue on the side away from the sound outlet 22 can adhere to the part of the diaphragm assembly 1 that protrudes from the bracket 2 due to its own tension and adhesive force. This reduces the possibility of the glue overflowing from the diaphragm assembly 1 and the bracket 2 flowing to the outside of the speaker. Less glue flowing to the outside of the speaker results in a higher degree of cleanliness on the speaker's surface, thereby improving the speaker's production qualification rate.
[0052] For example, Figure 3 The dimension shown in S1 is the difference between the radial dimension of the diaphragm assembly 1 and the radial dimension of the support 2, where 0.2mm≤S1≤2mm.
[0053] For example, the difference between the radial dimension of the diaphragm assembly 1 and the radial dimension of the support 2 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.8 mm, 1.0 mm, 1.5 mm or 2.0 mm.
[0054] It is understood that the difference between the radial dimension of the diaphragm assembly 1 and the radial dimension of the support 2 is not limited to 0.2 mm to 2 mm. For example, the difference between the radial dimension of the diaphragm assembly 1 and the radial dimension of the support 2 may also be less than 0.2 mm or greater than 2 mm.
[0055] In one embodiment, please refer to Figures 1-4 The bracket 2 has a positioning ear 25, which protrudes radially from the side of the bracket 2 opposite to the receiving cavity 21. The speaker includes a cover 3, which is connected to the positioning ear 25, for example, by adhesive bonding, so that the positioning ear 25 can be used to position the cover 3, facilitating the installation of the cover 3. The cover 3 can also be adhesively bonded to the diaphragm assembly 1 to improve the overall integrity of the speaker.
[0056] Understandably, the bracket 2 is not limited to having a positioning ear 25.
[0057] In one embodiment, please refer to Figures 1-4 The number of positioning ears 25 is multiple, and the multiple positioning ears 25 are arranged at intervals along the circumference of the bracket 2 so that the multiple positioning ears 25 can be connected to the cover 3, which makes it easier to position the cover 3 and facilitates the installation of the cover 3.
[0058] In one embodiment, please refer to Figures 1-4 The positioning ear 25 protrudes radially from the diaphragm assembly 1 along the bracket 2. When the speaker is subjected to external force or impact from an external object, the positioning ear 25 protruding from the diaphragm assembly 1 can support and protect the diaphragm assembly 1, reducing the possibility of deformation of the diaphragm assembly 1 and improving the reliability of the speaker.
[0059] It is understood that the positioning ear 25 is not limited to protruding from the diaphragm assembly 1 along the radial direction of the support 2. Exemplarily, the positioning ear 25 may be flush with the diaphragm assembly 1 along the radial direction of the support 2.
[0060] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The size of the positioning ear 25 protruding radially from the diaphragm assembly 1 along the bracket 2 ranges from 0.2mm to 6mm. When the speaker is subjected to external force or impact from an external object, the positioning ear 25 protruding from the diaphragm assembly 1 can support and protect the diaphragm assembly 1, reducing the possibility of deformation of the diaphragm assembly 1 and improving the reliability of the speaker.
[0061] For example, Figure 3 The dimension shown in S2 is the size of the portion of the positioning ear 25 that protrudes radially from the diaphragm assembly 1 along the bracket 2, 0.2mm≤S2≤6mm.
[0062] For example, the size of the portion of the positioning ear 25 that protrudes radially from the diaphragm assembly 1 along the bracket 2 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.8 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, or 6.0 mm.
[0063] It is understood that the size of the portion of the positioning ear 25 that protrudes radially from the diaphragm assembly 1 along the support 2 is not limited to 0.2 mm to 6 mm. For example, the size of the portion of the positioning ear 25 that protrudes radially from the diaphragm assembly 1 along the support 2 may also be less than 0.2 mm or greater than 6 mm.
[0064] In one embodiment, please refer to Figure 1 and Figure 4 The adhesive-blocking portion 23 protrudes from the bracket 2 by a height ranging from 0.2mm to 1.5mm. This allows the adhesive-blocking portion 23 to prevent adhesive from overflowing between the bracket 2 and the diaphragm assembly 1, while also preventing excessive increase in the axial dimension of the bracket 2. For example, please refer to... Figure 4 The dimension of the rubber baffle 23 along the axial direction of the bracket 2 is less than or equal to the dimension of the copper ring 11 along the axial direction of the bracket 2, so as to reduce the possibility of the speaker's axial dimension increasing.
[0065] For example, the height of the adhesive-blocking portion 23 protruding from the bracket 2 can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.8 mm, 1.0 mm or 1.5 mm.
[0066] It is understood that the height of the adhesive-blocking portion 23 protruding from the bracket 2 is not limited to 0.2mm to 1.5mm. For example, the height of the adhesive-blocking portion 23 protruding from the bracket 2 may also be less than 0.2mm or greater than 1.5mm.
[0067] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.
Claims
1. A loudspeaker, characterized in that, include: Diaphragm assembly; A bracket has a receiving cavity, a sound outlet, and a glue-blocking portion. The sound outlet communicates with the receiving cavity. The bracket also has a connecting surface surrounding the sound outlet. The diaphragm assembly covers the sound outlet and is connected to the connecting surface. The glue-blocking portion is disposed around the edge of the sound outlet and protrudes from the connecting surface along the opening direction of the sound outlet. Wherein, a plane perpendicular to the opening direction of the sound-emitting port is defined as a reference plane, the projection of the adhesive-blocking part on the reference plane is the first projection, the projection of the connecting surface on the reference plane is the second projection, and the first projection and the second projection do not completely coincide.
2. The loudspeaker according to claim 1, characterized in that, The adhesive-blocking portion extends continuously along the circumference of the sound-emitting port.
3. The loudspeaker according to claim 1, characterized in that, The diaphragm assembly includes a copper ring and a sound-emitting diaphragm that are connected to each other. The copper ring is disposed between the sound-emitting diaphragm and the support. The copper ring is connected to the connecting surface and is attached to the adhesive-blocking part.
4. The loudspeaker according to claim 1, characterized in that, The radial dimension of the diaphragm assembly is larger than the radial dimension of the support.
5. The loudspeaker according to claim 4, characterized in that, The difference between the radial dimension of the diaphragm assembly and the radial dimension of the support is in the range of 0.2 mm to 2 mm.
6. The loudspeaker according to any one of claims 1 to 5, characterized in that, The bracket has a positioning ear that protrudes radially from the bracket on the side of the bracket opposite to the receiving cavity, and the speaker includes a cover that is connected to the positioning ear.
7. The loudspeaker according to claim 6, characterized in that, The number of positioning ears is multiple, and the multiple positioning ears are arranged at intervals along the circumference of the bracket.
8. The loudspeaker according to claim 6, characterized in that, The positioning ear protrudes radially from the diaphragm assembly along the support.
9. The loudspeaker according to claim 8, characterized in that, The size of the portion of the positioning ear that protrudes radially from the diaphragm assembly along the bracket ranges from 0.2 mm to 6 mm.
10. The loudspeaker according to any one of claims 1 to 5, characterized in that, The height of the adhesive-blocking part protruding from the bracket ranges from 0.2mm to 1.5mm.