A loudspeaker and electronic device

Abstract

This invention belongs to the field of sound-to-electricity conversion technology and specifically discloses a loudspeaker and electronic device. The loudspeaker includes a vibration system, a magnetic circuit system, a fixing bracket, and sound-absorbing cotton. The vibration system includes a diaphragm and a voice coil connected to one side of the diaphragm. The magnetic circuit system has a magnetic gap for accommodating the voice coil. A central hole with its central axis parallel to the vibration direction of the diaphragm is also provided in the middle of the magnetic circuit system. The fixing bracket includes a body and a first connecting part and a second connecting part connected to the body. The first connecting part inserts the magnetic conductor through the central hole and, together with the second connecting part, clamps the fixing bracket in the central hole. The sound-absorbing cotton is disposed inside the first connecting part and is secured by the first connecting part. This structure ensures the connection stability of the sound-absorbing cotton, preventing it from falling off due to loudspeaker operation, transportation, or long-term gravity, thereby ensuring the sound quality of the loudspeaker.

Description

Technical Field

[0001] This invention belongs to the field of sound-to-electric conversion technology, and specifically discloses a loudspeaker and an electronic device. Background Technology

[0002] Current tweeters and coaxial speakers use open mounting brackets that are inserted into a T-shaped magnet, and the brackets contain pre-compressed sound-absorbing cotton. However, due to the poor structural stability of the sound-absorbing cotton, there is a risk that the compressed cotton may fall off during speaker operation, transportation, or long-term exposure to gravity, thus affecting the speaker's sound quality.

[0003] Therefore, ensuring the connection stability of sound-absorbing cotton is an urgent problem to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a loudspeaker and electronic device to solve the problem that the sound-absorbing cotton of the loudspeaker is easy to fall off in the prior art.

[0005] The first aspect of the present invention provides a loudspeaker, comprising:

[0006] A vibration system, the vibration system including a diaphragm and a voice coil connected to one side of the diaphragm;

[0007] A magnetic circuit system, wherein the magnetic circuit system is provided with a magnetic gap for accommodating the voice coil; and a central hole is provided in the middle of the magnetic circuit system with its central axis parallel to the vibration direction of the diaphragm;

[0008] A fixed bracket, comprising a body and a first connecting part and a second connecting part connected to the body, wherein the first connecting part is inserted into the magnetic circuit system through the central hole and together with the second connecting part clamps the fixed bracket onto the magnetic conductor;

[0009] The sound-absorbing cotton is located inside the first connecting part and is snapped and fixed by the first connecting part.

[0010] The loudspeaker disclosed in this invention may also have the following additional technical features:

[0011] In one specific embodiment of the present invention, a limiting part is provided at the end of the first connecting part away from the diaphragm. The limiting part protrudes along the inner sidewall of the first connecting part, and the lower end of the sound-absorbing cotton away from the diaphragm is stopped and limited by the limiting part.

[0012] In one specific embodiment of the present invention, the body is a hemispherical surface with vents, there are multiple first connecting parts, and the multiple first connecting parts extend to the same side along the periphery of the body, and the free ends of the first connecting parts are in an outwardly flared arc shape; there are multiple second connecting parts, and they extend outward along the periphery of the body.

[0013] In one specific embodiment of the present invention, a plurality of first connecting portions and a plurality of second connecting portions are arranged alternately at intervals.

[0014] In one specific embodiment of the present invention, the number of the first connecting portions is at least three, and the first connecting portions are evenly distributed along the periphery of the body; the number of the second connecting portions is at least three, and the second connecting portions are evenly distributed along the periphery of the body.

[0015] In one specific embodiment of the present invention, the first connecting portion is further provided with a weight reduction hole.

[0016] In one specific embodiment of the present invention, the fixing bracket is an injection-molded one-piece structure.

[0017] In one specific embodiment of the present invention, the magnetic circuit system includes a magnetically conductive body and a magnet connected to each other; the magnetically conductive body is a T-shaped iron having the central hole, and the magnet is annular, the magnet being fitted onto the outside of the magnetically conductive body and forming a magnetic gap with the magnetically conductive body; or

[0018] The magnetic conductor is U-shaped, the magnet has the central hole, and the magnet is placed in the inner cavity of the magnetic conductor to form a magnetic gap with the magnetic conductor.

[0019] In one specific embodiment of the present invention, the inner wall surface of the central hole for adapting to the free end of the first connecting part is a curved surface.

[0020] A second aspect of the present invention also discloses an electronic device, characterized in that it includes a speaker as described in any one of the preceding claims.

[0021] In the speaker provided by the present invention, the sound-absorbing cotton is stopped and limited at the first connecting part of the fixed bracket, thereby ensuring the connection stability of the sound-absorbing cotton and preventing it from falling off due to speaker operation, transportation or long-term gravity, thereby ensuring the sound quality of the speaker. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional structural diagram of a loudspeaker according to a specific embodiment of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the fixing bracket, magnet and sound-absorbing cotton in the loudspeaker of the present invention;

[0025] Figure 3 for Figure 1 Exploded view;

[0026] Figure 4 for Figure 1 The main view;

[0027] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure of AA;

[0028] Figure 6 This is a structural schematic diagram of the fixed support from another perspective.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-speaker;

[0031] 10-Magnetic circuit system, 11-Magnetic conductor, 12-Central hole, 13-Magnet;

[0032] 20-Fixed bracket, 21-Body, 22-First connecting part, 23-Second connecting part, 24-Limiting part, 25-Weight reduction hole;

[0033] 30-Sound-absorbing cotton;

[0034] 40-Vibration system, 41-Dome, 42-Diaphragm, 43-Voice coil, 44-Basket. Detailed Implementation

[0035] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0036] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0037] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0038] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0039] like Figures 1-6As shown, the first aspect of the present invention provides a loudspeaker 100, the loudspeaker 100 including a vibration system 40, a magnetic circuit system 10, a fixing bracket 20, and sound-absorbing cotton 30, wherein the vibration system 40 includes a diaphragm 42 and a voice coil 43 connected to one side of the diaphragm 42; the magnetic circuit system 10 is provided with a magnetic gap for accommodating the voice coil 43; the magnetic circuit system 10 is also provided with a central hole 12 in the middle, the central axis of which is parallel to the vibration direction of the diaphragm 42; the fixing bracket 20 includes a body 21 and a first connecting part 22 and a second connecting part 23 connected to the body 21, the first connecting part 22 being inserted into the magnetic circuit system 10 through the central hole 12 and together with the second connecting part 23 clamping the fixing bracket 20 onto the magnetic conductor 11; the sound-absorbing cotton 30 is disposed inside the first connecting part 22 and is snapped and fixed by the first connecting part 22.

[0040] In the above structure, the magnetic circuit system 10 has a central hole 12 suitable for mounting the fixing bracket 20 and the sound-absorbing cotton 30. Specifically, the fixing bracket 20 is clamped and fixed in the central hole 12 by the first connecting part 22 and the second connector. The sound-absorbing cotton 30 is disposed inside the first connecting part 22 and is snapped and fixed by the first connecting part 22. Through the above structure, the connection stability of the sound-absorbing cotton 30 can be guaranteed, so that it will not fall off due to the operation of the speaker 100, transportation or long-term gravity, thereby ensuring the sound quality of the speaker 100.

[0041] like Figures 4-6 As shown, in one specific embodiment of the present invention, a limiting portion 24 is provided at the end of the first connecting portion 22 away from the diaphragm 42. The limiting portion 24 protrudes along the inner sidewall of the first connecting portion 22, and the lower end of the sound-absorbing cotton 30 away from the diaphragm 42 is stopped and limited by the limiting portion 24. The plurality of limiting portions 24 are planar on the side facing the body 21 and are located on the same plane. The limiting portion 24 is adapted to restrict the end edge of the sound-absorbing cotton 30, thereby preventing the sound-absorbing cotton 30 from coming out of the inner cavity of the fixing bracket 20.

[0042] like Figures 4-5 As shown, in one specific embodiment of the present invention, the body 21 is a hemispherical surface with vents, there are multiple first connecting portions 22, and the multiple first connecting portions 22 extend along the periphery of the body 21 to the same side, and the free ends of the first connecting portions 22 are in an outwardly flared arc shape; there are multiple second connecting portions 23, and they extend outward along the periphery of the body 21.

[0043] In the above structure, the hemispherical surface of the body 21 conforms to the dome 41 of the vibration system 40. Multiple vent holes are distributed from the center outwards on the body 21, allowing airflow between the upper and lower sides of the body 21. This transmits the airflow generated during the vibration of the diaphragm 42 to the location of the sound-absorbing cotton 30, thereby achieving virtual expansion and enhancing the bass effect. The second connecting part 23 of the fixing bracket 20 mates with the end face of one side of the magnetic circuit system 10, and the first connecting part 22 is inserted into the central hole 12 and mates with the inner wall of the central hole 12, thus mounting the fixing bracket 20 onto the magnetic circuit system 10.

[0044] In one specific embodiment of the present invention, a plurality of first connecting portions 22 and a plurality of second connecting portions 23 are arranged alternately. Specifically, the number of first connecting portions 22 is at least three, and the first connecting portions 22 are evenly distributed along the periphery of the body; the number of second connecting portions 23 is at least three, and the second connecting portions 23 are evenly distributed along the periphery of the body.

[0045] On the one hand, the connection structure formed by the three fulcrums has high stability and occupies little space, so that the sound-absorbing cotton 30 can fully occupy the space inside the central hole 12, thereby strengthening the attraction effect. Of course, as the structure is enlarged, in order to improve the connection strength between the fixed bracket 20 and the magnetic conductor 11, and between the fixed bracket 20 and the sound-absorbing cotton 30, the number of the first connection parts 22 can be set to 4, 5, etc.

[0046] In one specific embodiment of the present invention, the first connecting portion 22 is further provided with a weight-reducing hole 25. Specifically, the weight-reducing hole 25 is located between the limiting portion 24 and the first connecting portion 22, and the center line of the weight-reducing hole 25 forms an angle with the central axis of the fixed bracket 20, preferably perpendicular to the central axis. On the one hand, the weight-reducing hole 25 can be used to reduce weight, thereby further reducing the weight of the speaker 100; on the other hand, the weight-reducing hole 25 is also used to accommodate a portion of the sound-absorbing cotton 30 embedded within the weight-reducing hole 25, thereby further improving the connection strength between the sound-absorbing cotton 30 and the fixed bracket 20.

[0047] In one specific embodiment of the present invention, the fixing bracket 20 is an injection-molded integral structure.

[0048] like Figure 1 As shown, in a specific embodiment of the present invention, the magnetic circuit system 10 includes a magnetic conductor 11 and a magnet 13 connected to each other, wherein the magnetic conductor 11 is a T-iron with the central hole 12, the magnet 13 is annular, and the magnet 13 is fitted on the outside of the magnetic conductor 11 and forms a magnetic gap with the magnetic conductor 11.

[0049] Alternatively, in one specific embodiment of the present invention, the magnetic conductor 11 is U-shaped, the magnet 13 has the central hole 12, and the magnet 13 is placed in the inner cavity of the magnetic conductor 11 and forms a magnetic gap with the magnetic conductor 11.

[0050] Specifically, the above provides two structures for the magnetic circuit system 10, and the corresponding structure can be selected according to needs. The loudspeaker also includes a frame 44, and the vibration system 40 includes a dome 41, a diaphragm 42, and a voice coil 43. The middle part of the diaphragm 42 is connected to the dome 41, and its outer edge is fixedly connected to the magnetic circuit system 10 through the frame 44. One end of the voice coil 43 is connected to the diaphragm 42, and the other end is inserted into the magnetic gap formed by the magnetic circuit system 10. When the voice coil 43 is energized, it is subjected to the force of the magnetic field and vibrates relative to the ring magnet, thereby driving the diaphragm 42 to vibrate and produce sound.

[0051] In one specific embodiment of the present invention, the inner wall surface of the central hole 12, which is adapted to fit the free end of the first connecting portion 22, is curved. This arrangement is suitable for accommodating the open portion of the free end of the first connecting portion 22, allowing the first connecting portion 22 to return to its original position after being elastically compressed into the central hole 12 to install the fixing bracket 20. This reduces the stress on the fixing bracket 20 and minimizes its impact on the function of the speaker 100.

[0052] In one specific embodiment of the present invention, the sound-absorbing cotton 30 is a cylinder. During installation, the sound-absorbing cotton 30 is squeezed to reduce its diameter, and then inserted into the inner cavity of the fixing bracket 20 from the free end side of the first connector, with its outer end face stopping against the limiting part 24.

[0053] The present invention also discloses an electronic device comprising the speaker 100 described in any of the preceding claims. The electronic device comprising the speaker 100 also possesses the beneficial effects of the speaker 100.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A loudspeaker, characterized in that, include: A vibration system, the vibration system including a diaphragm and a voice coil connected to one side of the diaphragm; A magnetic circuit system, wherein the magnetic circuit system is provided with a magnetic gap for accommodating the voice coil; and a central hole is provided in the middle of the magnetic circuit system with its central axis parallel to the vibration direction of the diaphragm; A fixing bracket includes a body and a first connecting part and a second connecting part connected to the body. The first connecting part is inserted into the magnetic circuit system through the central hole and together with the second connecting part, clamps the fixing bracket in the central hole. Sound-absorbing cotton, which is disposed inside the first connecting part and is snapped and fixed by the first connecting part; The fixed bracket is located on the side of the diaphragm closer to the magnetic circuit system; The body of the fixed bracket has ventilation holes, which allow airflow to pass through the upper and lower sides of the body.

2. The loudspeaker according to claim 1, characterized in that, A limiting part is provided at the end of the first connecting part away from the diaphragm. The limiting part protrudes along the inner sidewall of the first connecting part, and the lower end of the sound-absorbing cotton away from the diaphragm is stopped and limited by the limiting part.

3. The loudspeaker according to claim 1, characterized in that, The main body is a hemispherical surface. There are multiple first connecting parts, and the multiple first connecting parts extend to the same side along the periphery of the main body, and the free ends of the first connecting parts are in an outwardly flared arc shape; there are multiple second connecting parts, and they extend outward along the periphery of the main body.

4. The loudspeaker according to claim 3, characterized in that, Multiple first connecting parts and multiple second connecting parts are arranged alternately at intervals.

5. The loudspeaker according to claim 3, characterized in that, The number of the first connecting parts is at least three, and the first connecting parts are evenly distributed along the periphery of the body; the number of the second connecting parts is at least three, and the second connecting parts are evenly distributed along the periphery of the body.

6. The loudspeaker according to claim 3, characterized in that, The first connecting part is also provided with weight reduction holes.

7. The loudspeaker according to claim 3, characterized in that, The fixed bracket is an injection-molded one-piece structure.

8. The loudspeaker according to claim 1, characterized in that, The magnetic circuit system includes a magnetic conductor and a magnet connected to each other; the magnetic conductor is a T-shaped iron with the central hole, and the magnet is annular, fitted onto the outside of the magnetic conductor to form a magnetic gap with the magnetic conductor; or The magnetic conductor is U-shaped, the magnet has the central hole, and the magnet is placed in the inner cavity of the magnetic conductor to form a magnetic gap with the magnetic conductor.

9. The loudspeaker according to claim 3, characterized in that, The inner wall surface of the central hole, which is used to adapt to the free end of the first connecting part, is curved.

10. An electronic device, characterized in that, Includes the loudspeaker as described in any one of claims 1-9.

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