Loudspeaker

Abstract

The embodiment of the invention discloses a loudspeaker. The loudspeaker comprises a frame, a mid-bass unit and a treble unit. Wherein the basin stand is provided with a first accommodating cavity and a second accommodating cavity, the mid-bass unit comprises a first magnetic circuit system and a first vibration system, the first magnetic circuit system and the first vibration system are arranged on the basin stand through the first accommodating cavity, the first magnetic circuit system is exposed from the bottom of the basin stand, and the bottom of the first magnetic circuit system is provided with a first air hole; the first air hole is communicated with the first containing cavity, a groove is formed in the inner wall of the first containing cavity, the groove is communicated with the first containing cavity and penetrates to the bottom of the basin frame, the first magnetic circuit system is matched with the groove to form a second air hole, and the high pitch unit is arranged on the basin frame through the second containing cavity. Therefore, the loudspeaker realizes that the mid-bass unit and the high-pitch unit are accommodated through one basin stand, thereby being beneficial to saving equipment space and simplifying an assembly process.

Description

Technical Field

[0001] This invention relates to the field of electroacoustic conversion technology, and more particularly to a loudspeaker. Background Technology

[0002] Currently, most speakers on the market are independent units. However, in certain scenarios, speakers need to be combined to improve the overall audio effect. For example, when electronic devices such as smart glasses need to improve the high-frequency effect, they usually use a separate mid-bass driver and a separate tweeter. This takes up more space and the assembly process is more complicated. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a loudspeaker that integrates the mid-bass unit and the tweeter unit into a single design.

[0004] This invention provides a loudspeaker, comprising: a frame having a first receiving cavity and a second receiving cavity; a mid-bass unit including a first magnetic circuit system and a first vibration system, the first magnetic circuit system and the first vibration system being disposed on the frame through the first receiving cavity, the first magnetic circuit system protruding from the bottom of the frame, the bottom of the first magnetic circuit system having a first vent hole communicating with the first receiving cavity, the inner wall of the first receiving cavity having a groove communicating with the first receiving cavity and penetrating to the bottom of the frame, the first magnetic circuit system cooperating with the groove to form a second vent hole; and a tweeter located in the second receiving cavity and disposed on the frame.

[0005] In some embodiments, the two first vent holes are symmetrical about a first axis of symmetry; the two second vent holes are symmetrical about a second axis of symmetry, which is perpendicular to the first axis of symmetry.

[0006] In some embodiments, the bottom of the first magnetic circuit system is provided with a first mesh cloth covering the opening of the first vent hole; the bottom of the basin frame is provided with a second mesh cloth covering the opening of the second vent hole.

[0007] In some embodiments, the first magnetic circuit system includes: a first magnetic yoke connected to the basin stand and protruding from the bottom of the basin stand, the first magnetic yoke having a first vent hole, the first magnetic yoke engaging with a groove to form a second vent hole; a first magnet disposed on the first magnetic yoke; and a first pole piece disposed on the first magnet.

[0008] In some embodiments, the first magnetic yoke is provided with a first weight-reducing hole.

[0009] In some embodiments, the first electrode is provided with a second weight-reducing hole.

[0010] In some embodiments, the first magnetic yoke includes: a first main body portion, on which a first magnet is provided, the first main body portion extending upward to form a first sidewall, the first sidewall being spaced apart from the first magnet and the first pole piece, the first sidewall cooperating with a groove to form a second vent hole; and an outwardly expanding portion, the outwardly expanding portion extending outward from the first main body portion, the outwardly expanding portion being provided with a first vent hole, the outwardly expanding portion extending upward to form a second sidewall, the second sidewall being spaced apart from the first magnet and the first pole piece.

[0011] In some embodiments, the first vibration system includes: a first voice coil suspended in a first magnetic gap formed by a first magnetic circuit system; and a first diaphragm connected to the top of the frame and the top of the first voice coil.

[0012] In some embodiments, the first vibration system further includes a first dome, which is connected to a first voice coil and a first diaphragm.

[0013] In some embodiments, the first vibration system further includes a centering support plate connected to the bottom of the frame and the bottom of the first voice coil.

[0014] In some embodiments, the tweeter includes a second magnetic circuit system and a second vibration system, which are disposed on the frame via a second receiving cavity.

[0015] In some embodiments, the second magnetic circuit system protrudes from the bottom of the basin frame, and the bottom of the second magnetic circuit system is provided with a third vent hole, which connects to the second receiving cavity.

[0016] In some embodiments, a third mesh is provided at the bottom of the second magnetic circuit system, which covers the opening of the third vent hole.

[0017] In some embodiments, the second magnetic circuit system includes: a second magnetic yoke connected to the basin stand and protruding from the bottom of the basin stand, the second magnetic yoke having a third vent hole; a second magnet disposed on the second magnetic yoke; and a second pole piece disposed on the second magnet.

[0018] In some embodiments, the second magnetic yoke includes: a second main body portion, on which a second magnet is disposed, the second main body portion extending upward to form a third sidewall, the third sidewall being spaced apart from the second magnet and the second pole piece, and the second main body portion having a third vent hole.

[0019] In some embodiments, the second magnet is provided with a first leakage hole, which is aligned with a third vent hole; the second pole piece is provided with a second leakage hole, which is aligned with the first leakage hole and communicates with the second receiving cavity.

[0020] In some embodiments, the second vibration system includes: a second voice coil suspended in a second magnetic gap formed by the second magnetic circuit system; and a second diaphragm connected to the top of the frame and the top of the second voice coil.

[0021] In some embodiments, the second vibration system further includes a second dome, which is connected to a second voice coil and a second diaphragm.

[0022] In some embodiments, a fourth vent is provided on the second dome.

[0023] In some embodiments, a waterproof and breathable membrane is provided on the second dome, which covers the opening of the fourth vent.

[0024] This invention provides a loudspeaker comprising a frame, a mid-bass unit, and a tweeter. The frame has a first receiving cavity and a second receiving cavity. The mid-bass unit includes a first magnetic circuit system and a first vibration system, which are mounted on the frame through the first receiving cavity. The first magnetic circuit system protrudes from the bottom of the frame and has a first vent hole at the bottom, which connects to the first receiving cavity. The inner wall of the first receiving cavity has a groove that connects to the first receiving cavity and extends to the bottom of the frame. The first magnetic circuit system, in conjunction with the groove, forms a second vent hole. The tweeter is mounted on the frame through the second receiving cavity. Thus, the loudspeaker achieves the housing of both the mid-bass unit and the tweeter within a single frame, helping to save equipment space and simplify the assembly process. Attached Figure Description

[0025] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the first type of loudspeaker provided in an embodiment of the present invention;

[0027] Figure 2 This is a structural schematic diagram of the first type of loudspeaker provided in an embodiment of the present invention from another perspective;

[0028] Figure 3 This is a schematic diagram of the structure of the basin stand provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the basin stand provided in another embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the frequency response curve of a loudspeaker provided in an embodiment of the present invention;

[0031] Figure 6This is a schematic diagram of the structure of a first loudspeaker with the first and second mesh fabrics removed, provided in an embodiment of the present invention.

[0032] Figure 7 This is a cross-sectional schematic diagram of the first type of loudspeaker provided in an embodiment of the present invention;

[0033] Figure 8 This is a cross-sectional schematic diagram from another perspective of the first type of loudspeaker provided in the embodiment of the present invention;

[0034] Figure 9 This is an exploded schematic diagram of the first type of loudspeaker provided in an embodiment of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of a first magnetic yoke provided in an embodiment of the present invention;

[0036] Figure 11 This is a schematic diagram of the structure of a first magnetic yoke from another perspective, provided in an embodiment of the present invention;

[0037] Figure 12 This is a schematic diagram of a second magnetic yoke provided in an embodiment of the present invention;

[0038] Figure 13 This is a schematic diagram of the structure of the second type of loudspeaker provided in an embodiment of the present invention;

[0039] Figure 14 This is an exploded schematic diagram of the second type of loudspeaker provided in an embodiment of the present invention;

[0040] Figure 15 This is a cross-sectional schematic diagram of the second type of loudspeaker provided in an embodiment of the present invention;

[0041] Figure 16 This is a schematic diagram of another first magnetic yoke provided in an embodiment of the present invention;

[0042] Figure 17 This is a schematic diagram of the structure of a first electrode provided in an embodiment of the present invention;

[0043] Figure 18 This is a schematic diagram of the structure of the third type of loudspeaker provided in an embodiment of the present invention;

[0044] Figure 19 This is an exploded schematic diagram of the third type of loudspeaker provided in an embodiment of the present invention;

[0045] Figure 20 This is a schematic diagram of another second magnetic yoke provided in an embodiment of the present invention;

[0046] Figure 21 This is a cross-sectional schematic diagram of the third type of loudspeaker provided in an embodiment of the present invention;

[0047] Figure 22 This is a schematic diagram of the structure of the fourth type of loudspeaker provided in the embodiments of the present invention;

[0048] Figure 23 This is a cross-sectional schematic diagram of the fourth type of loudspeaker provided in an embodiment of the present invention;

[0049] Figure 24 This is an exploded schematic diagram of the fourth type of loudspeaker provided in the embodiments of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1-Screen frame; 11-First receiving cavity; 111-Groove; 12-Second receiving cavity; 13-Positioning part; 14-Protrusion; 2-Mid-bass unit; 21-First magnetic circuit system; 211-First magnetic yoke; 2111-First weight reduction hole; 2112-First main body; 2113-First sidewall; 2114-Outer expansion part; 2115-Second sidewall; 2116-First auxiliary groove; 212-First magnet; 213-First pole piece; 2131-Second weight reduction hole; 214-First magnetic gap; 22-First vibration system; 221-First voice coil; 222-First diaphragm; 2221-First inner ring; 2222-First folded surround; 2223-First outer ring; 223-First dome; 224-Centering support; 23-First 24-Second vent; 25-First mesh fabric; 26-Second mesh fabric; 3-Tweeter unit; 31-Second magnetic circuit system; 311-Second magnetic yoke; 3111-Second main body; 3112-Third sidewall; 3113-Second auxiliary groove; 312-Second magnet; 3121-First leakage hole; 313-Second pole piece; 3131-Second leakage hole; 314-Second magnetic gap; 32-Second vibration system; 321-Second voice coil; 322-Second diaphragm; 3221-Second inner ring; 3222-Second folded ring; 3223-Second outer ring; 323-Second dome; 33-Third vent; 34-Third mesh fabric; 35-Fourth vent; 36-Waterproof and breathable membrane; a-First axis of symmetry; b-Second axis of symmetry. Detailed Implementation

[0052] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0053] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0054] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0056] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0057] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0058] Figure 1 This is a schematic diagram of the structure of the first type of loudspeaker provided in an embodiment of the present invention. Figure 2 This is a structural schematic diagram of the first type of loudspeaker provided in the embodiments of the present invention from another perspective, combined with... Figure 1 and Figure 2 As shown, the speaker includes a frame 1, a mid-bass unit 2, and a tweeter 3. Furthermore, Figure 3 This is a schematic diagram of the structure of the basin stand provided in an embodiment of the present invention. Figure 4 This is a structural schematic diagram of the basin stand provided in an embodiment of the present invention from another perspective, combined with... Figure 3 and Figure 4As shown, the speaker frame 1 has a first receiving cavity 11 and a second receiving cavity 12, with the first receiving cavity 11 being larger than the second receiving cavity 12. It is readily understood that the first receiving cavity 11 is used to house the mid-bass unit 2, and the second receiving cavity 12 is used to house the tweeter 3. It should be noted that simultaneously mounting the mid-bass unit 2 and the tweeter 3 using a single speaker frame 1 helps simplify the structure of the electronic equipment used to mount the speakers. Furthermore, the mid-bass unit 2 and the tweeter 3 share the positioning portion 13 between the first receiving cavity 11 and the second receiving cavity 12, which helps save equipment space and simplify the assembly process. Figure 5 This is a schematic diagram of the frequency response curve of a loudspeaker provided in an embodiment of the present invention, as shown below. Figure 5 As shown, integrating the mid-bass unit 2 and tweeter 3 into a single unit helps improve the speaker's acoustic performance. It should be noted that the mid-bass unit 2 and tweeter 3 are powered independently, allowing for various functions such as volume enhancement or partial cancellation by providing unidirectional or inverse signals to the mid-bass unit 2 and tweeter 3, enabling privacy calls and more.

[0059] Specifically, the mid-bass unit 2 includes a first magnetic circuit system 21 and a first vibration system 22, which are mounted on the frame 1 via a first receiving cavity 11. Correspondingly, the tweeter is mounted on the frame 1 via a second receiving cavity 12. Furthermore, Figure 6 This is a schematic diagram of the structure of a first loudspeaker provided by an embodiment of the present invention, after removing the first mesh and the second mesh. Figure 6 As shown, the first magnetic circuit system 21 protrudes from the bottom of the basin holder 1, and the bottom of the first magnetic circuit system 21 is provided with a first vent 23. It is readily understood that the first vent 23 connects to the first receiving cavity 11. Combined with... Figures 3 to 6 As shown, the inner wall of the first receiving cavity 11 is provided with a groove 111. The groove 111 connects to the first receiving cavity 11 and penetrates to the bottom of the frame 1. The first magnetic circuit system 21 cooperates with the groove 111 to form a second vent 24. Thus, by setting the first vent 23 and the second vent 24, the mid-bass unit 2 helps to balance the air pressure inside and outside the first receiving cavity 11, thereby ensuring compliance and reducing distortion.

[0060] like Figure 6 As shown, in one embodiment, there are two first vents 23, which are symmetrical about a first axis of symmetry a. Further, there are two second vents 24, which are symmetrical about a second axis of symmetry b, wherein the second axis of symmetry b is perpendicular to the first axis of symmetry a. It is readily understood that the mid-bass unit 2 is generally formed as a rectangular unit, with the two first vents 23 positioned close to the shorter sides, and the two second vents 24 located at the center of the longer sides. It is readily understood that the symmetrical arrangement of the first vents 23 and the second vents 24 helps to balance air pressure.

[0061] like Figure 2 As shown, in one embodiment, the bottom of the first magnetic circuit system 21 is provided with a first mesh 25, and the bottom of the frame 1 is provided with a second mesh 26. Specifically, the first mesh 25 covers the opening of the first vent 23, and the second mesh 26 covers the opening of the second vent 24. Optionally, the first mesh 25 and the second mesh 26 are configured as mesh fabrics, which helps to locally suppress the amplitude near the resonant frequency point, making the frequency response curve flatter and reducing total harmonic distortion, thereby improving sound quality. It should be noted that the arrangement of the first mesh 25 and the second mesh 26 facilitates the adjustment of airflow damping. For example, the damping coefficient can be adjusted by conveniently adjusting the sparseness of the second mesh 26 covering the second vent 24 as needed.

[0062] Figure 7 This is a cross-sectional schematic diagram of the first type of loudspeaker provided in an embodiment of the present invention. Figure 8 This is a cross-sectional schematic diagram from another perspective of the first type of loudspeaker provided in the embodiment of the present invention. Figure 9 This is an exploded schematic diagram of the first type of loudspeaker provided in the embodiments of the present invention, combined with... Figures 7 to 9 As shown, in one embodiment, the first magnetic circuit system 21 includes a first magnetic yoke 211, a first magnet 212, and a first pole piece 213. Specifically, the first magnetic yoke 211 is connected to the basin holder 1 and protrudes from the bottom of the basin holder 1. A first vent hole 23 is disposed on the first magnetic yoke 211, and the first magnetic yoke 211 cooperates with the groove 111 to form a second vent hole 24. Further, the first magnet 212 is disposed on the first magnetic yoke 211, and the first pole piece 213 is disposed on the first magnet 212. It is readily understood that the first magnetic yoke 211 and the first pole piece 213 are made of a soft magnetic material. Further, the first magnetic yoke 211, the first magnet 212, and the first pole piece 213 cooperate to form a first magnetic gap 214.

[0063] Figure 10 This is a schematic diagram of the structure of a first magnetic yoke provided in an embodiment of the present invention. Figure 11 This is a schematic diagram of the structure of a first magnetic yoke from another perspective, provided in an embodiment of the present invention. Figure 10 and Figure 11 As shown, in one embodiment, the first magnetic yoke 211 includes a first main body portion 2112 and an outwardly expanding portion 2114. The first main body portion 2112 is used to house the first magnet 212. Further, the first main body portion 2112 extends upward to form a first sidewall 2113. Figure 8As shown, the first sidewall 2113 is spaced apart from the first magnet 212 and the first pole piece 213 to form a first magnetic gap 214, and the first sidewall 2113 cooperates with the groove 111 to form a second vent hole 24. On the other hand, the outward expansion portion 2114 has a first main body portion 2112 extending outward, and the first vent hole 23 is provided on the outward expansion portion 2114. It is easy to understand that providing the first vent hole 23 in the outward expansion portion 2114 of the first magnetic yoke allows direct communication with the first receiving cavity 11, without the need to make additional openings in the first magnet 212 and the first pole piece 213. Further, the outward expansion portion 2114 extends upward to form a second sidewall 2115, and the second sidewall 2115 is spaced apart from the first magnet 212 and the first pole piece 213 to form the first magnetic gap 214.

[0064] Optionally, the first mesh fabric 25 is adhered to the bottom of the first magnetic yoke 211 using double-sided adhesive. For example... Figure 11 As shown, in one embodiment, the bottom of the outward expansion portion 2114 is provided with two first auxiliary grooves 2116. The first auxiliary grooves 2116 surround the first ventilation hole 23 and match the first mesh fabric 25. The two first mesh fabrics 25 are positioned and bonded to the two first auxiliary grooves 2116 by double-sided adhesive.

[0065] Optionally, the second mesh fabric 26 is adhered to the bottom of the basin frame 1 using double-sided adhesive. Figure 3 and Figure 4 As shown, in one embodiment, the bottom of the basin holder 1 has two protrusions 14, the positions of which match the grooves 111, i.e., the grooves 111 penetrate to the end faces of the protrusions 14. Further, a second mesh fabric 26 is simultaneously bonded to both protrusions 14 using double-sided adhesive, thereby simultaneously covering both second ventilation holes 24. In addition, the end faces of the protrusions 14 are flush with the bottom of the first magnetic yoke 211, and the second mesh fabric 26 is also bonded to a portion of the bottom of the first magnetic yoke 211 using double-sided adhesive, which helps to increase the bonding area and enhance the bonding strength.

[0066] Combination Figures 7 to 9 As shown, in one embodiment, the first vibration system 22 includes a first voice coil 221 and a first diaphragm 222. Specifically, the first voice coil 221 is suspended in a first magnetic gap 214 formed by the first magnetic circuit system 21, and the first diaphragm 222 is connected to the top of the frame 1 and the top of the first voice coil 221 to vibrate under the drive of the first voice coil 221.

[0067] Combination Figures 7 to 9As shown, in one embodiment, the first vibration system 22 further includes a first dome 223. The first dome 223 is connected to both the first voice coil 221 and the first diaphragm 222. Specifically, the first diaphragm 222 includes, from the inside out, a first inner ring portion 2221, a first folded ring portion 2222, and a first outer ring portion 2223. Further, the first inner ring portion 2221 is hollow in the middle, the first dome 223 is bonded to the bottom of the first inner ring portion 2221 to form a closed loop, the first voice coil 221 is bonded to the bottom of the first dome 223, and the bottom of the first outer ring portion 2223 is bonded to the top of the frame 1.

[0068] Combination Figures 7 to 9 As shown, in one embodiment, the first vibration system 22 further includes a centering support 224. Specifically, the centering support 224 is bonded to the bottom of the frame 1 and the bottom of the first voice coil 221. It should be noted that the centering support 224 is configured as a flexible circuit board, which facilitates the conduction of electrical signals through the first voice coil 221 when connected to it. Simultaneously, the connection between the centering support 224 and the first voice coil 221 suppresses vibration and sway, thus improving sound quality. It should be further noted that there are two centering supports 224, distributed on the shorter sides of the mid-bass unit 2. Furthermore, the height of the second sidewall 2115 is less than that of the first sidewall 2113, and a portion of the bottom of the centering support 224 is mounted on the top of the second sidewall 2115.

[0069] Combination Figure 1 and Figure 2 As shown, in one embodiment, the tweeter 3 includes a second magnetic circuit system 31 and a second vibration system 32. Specifically, the second magnetic circuit system 31 and the second vibration system 32 are disposed on the frame 1 through a second receiving cavity 12.

[0070] like Figure 6 As shown, in one embodiment, the second magnetic circuit system 31 protrudes from the bottom of the basket 1. Further, in conjunction with... Figure 7 and Figure 9 As shown, the second magnetic circuit system 31 includes a second magnetic yoke 311, a second magnet 312, and a second pole piece 313. Specifically, the second magnetic yoke 311 is connected to the basin frame 1 and protrudes from the bottom of the basin frame 1, the second magnet 312 is disposed on the second magnetic yoke 311, and the second pole piece 313 is disposed on the second magnet 312. It is readily understood that the second magnetic yoke 311 and the second pole piece 313 are made of soft magnetic material. Further, the second magnetic yoke 311, the second magnet 312, and the second pole piece 313 cooperate to form a second magnetic gap 314.

[0071] Figure 12 This is a schematic diagram of the structure of a second magnetic yoke provided in an embodiment of the present invention, as shown below. Figure 12As shown, in one embodiment, the second magnetic yoke 311 includes a second main body portion 3111, on which a second magnet 312 is provided. Further, the second main body portion 3111 extends upward to form a third sidewall 3112, which is spaced apart from the second magnet 312 and the second pole piece 313 to form a second magnetic gap 314.

[0072] Combination Figure 7 and Figure 9 As shown, in one embodiment, the second vibration system 32 includes a second voice coil 321 and a second diaphragm 322. Specifically, the second voice coil 321 is suspended in the second magnetic gap 314 formed by the second magnetic circuit system 31, and the second diaphragm 322 is connected to the top of the frame 1 and the top of the second voice coil 321 to vibrate under the drive of the second voice coil 321. It should be noted that a portion of the centering support 224 extends out of the frame 1, and the second voice coil 321 extends out of the frame 1 through leads. The leads of the centering support 224 and the second voice coil 321 are respectively connected to external circuits to achieve independent power supply for the mid-bass unit 2 and the tweeter 3.

[0073] Combination Figure 7 and Figure 9 As shown, in one embodiment, the second vibration system 32 further includes a second dome 323. Specifically, the second dome 323 is connected to the second voice coil 321 and the second diaphragm 322. Specifically, the second diaphragm 322 includes, from the inside out, a second inner ring portion 3221, a second folded ring portion 3222, and a second outer ring portion 3223. Further, the second inner ring portion 3221 is hollow in the middle, the second dome 323 is bonded to the bottom of the second inner ring portion 3221 to form a closure, the second voice coil 321 is bonded to the bottom of the second dome 323, and the bottom of the second outer ring portion 3223 is bonded to the top of the frame 1.

[0074] Figure 13 This is a schematic diagram of the structure of the second type of loudspeaker provided in an embodiment of the present invention. Figure 14 This is an exploded schematic diagram of the second type of loudspeaker provided in an embodiment of the present invention. Figure 15 This is a cross-sectional schematic diagram of the second type of loudspeaker provided in an embodiment of the present invention, combined with... Figure 13 and Figure 14 As shown, in one embodiment, the first magnetic circuit system 21 is provided with a first weight-reducing hole 2111 and a second weight-reducing hole 2131. Specifically, Figure 16 This is a schematic diagram of another first magnetic yoke provided in an embodiment of the present invention. Figure 17 This is a schematic diagram of the structure of a first electrode sheet provided in an embodiment of the present invention, combined with... Figure 16 and Figure 17As shown, a first weight-reduction hole 2111 is disposed on the first main body portion 2112 of the first magnetic yoke 211, and a second weight-reduction hole 2131 is disposed on the first pole piece 213. Specifically, there are two first weight-reduction holes 2111 distributed at intervals, and the second weight-reduction hole 2131 is disposed along the length direction of the first pole piece 213. It is easy to understand that by providing the first weight-reduction hole 2111 and the second weight-reduction hole 2131, the mass of the speaker is reduced, thereby helping to reduce the mass of the electronic device on which the speaker is installed, so as to improve the user experience.

[0075] Figure 18 This is a schematic diagram of the structure of the third type of loudspeaker provided in an embodiment of the present invention. Figure 19 This is an exploded schematic diagram of the third type of loudspeaker provided in an embodiment of the present invention. Figure 20 This is a schematic diagram of another second magnetic yoke provided in an embodiment of the present invention. Figure 21 This is a cross-sectional schematic diagram of the third type of loudspeaker provided in the embodiments of the present invention, combined with... Figures 18 to 21 As shown, in one embodiment, the bottom of the second magnetic circuit system 31 is provided with a third vent 33. It is readily understood that the third vent 33 connects to the second receiving cavity 12. Thus, by providing the third vent 33, the tweeter 3 helps to balance the air pressure inside and outside the second receiving cavity 12, thereby ensuring compliance and reducing distortion. Further, the bottom of the second magnetic circuit system 31 is provided with a third mesh 34, and the third mesh 34 covers the opening of the third vent 33. Optionally, the third mesh 34 is set as a mesh fabric, which helps to locally suppress the amplitude near the resonant frequency point, making the frequency response curve flatter and reducing total harmonic distortion, thereby improving sound quality. It should be noted that the provision of the third mesh 34 facilitates the adjustment of airflow damping. For example, the damping coefficient can be adjusted by conveniently adjusting the sparseness of the third mesh 34 covering the third vent 33 as needed.

[0076] Combination Figure 20 and Figure 21 As shown, in one embodiment, a third vent 33 is disposed on the second main body portion 3111 of the second magnetic yoke 311. Optionally, a third mesh fabric 34 is bonded to the bottom of the second magnetic yoke 311 with double-sided adhesive. Further, a second auxiliary groove 3113 is provided at the bottom of the second main body portion 3111, the second auxiliary groove 3113 surrounds the third vent 33 and matches the third mesh fabric 34, and the third mesh fabric 34 is positioned and bonded to the second auxiliary groove 3113 with double-sided adhesive.

[0077] Combination Figure 19 and Figure 21As shown, in one embodiment, the second magnet 312 has a first leakage hole 3121, and the first leakage hole 3121 is aligned with the third vent hole 33. Further, the second pole piece 313 has a second leakage hole 3131, which is aligned with the first leakage hole 3121 and connects to the second receiving cavity 12. Thus, the third vent hole 33 connects to the second receiving cavity 12 through the first leakage hole 3121 and the second leakage hole 3131.

[0078] Figure 22 This is a structural schematic diagram of the fourth type of loudspeaker provided in an embodiment of the present invention. Figure 23 This is a cross-sectional schematic diagram of the fourth type of loudspeaker provided in an embodiment of the present invention. Figure 24 This is an exploded schematic diagram of the fourth type of loudspeaker provided in the embodiments of the present invention, combined with... Figures 22 to 24 As shown, in one embodiment, the second dome 323 is provided with a fourth vent 35, which connects to the second receiving cavity 12. Thus, by providing the fourth vent 35, the tweeter 3 helps to balance the air pressure inside and outside the second receiving cavity 12, thereby ensuring compliance and reducing distortion.

[0079] Combination Figures 22 to 24 As shown, in one embodiment, a waterproof and breathable membrane 36 is provided on the second dome 323. Specifically, the waterproof and breathable membrane 36 covers the opening of the fourth vent 35 to achieve waterproofing and breathability. Optionally, the waterproof and breathable membrane 36 is made of polytetrafluoroethylene or other materials with waterproof and breathable functions. Further, the waterproof and breathable membrane 36 is adhered to the top of the second dome 323 to cover the fourth vent 35.

[0080] This invention provides a loudspeaker comprising a frame, a mid-bass unit, and a tweeter. The frame has a first receiving cavity and a second receiving cavity. The mid-bass unit includes a first magnetic circuit system and a first vibration system, which are mounted on the frame through the first receiving cavity. The first magnetic circuit system protrudes from the bottom of the frame and has a first vent hole at the bottom, which connects to the first receiving cavity. The inner wall of the first receiving cavity has a groove that connects to the first receiving cavity and extends to the bottom of the frame. The first magnetic circuit system, in conjunction with the groove, forms a second vent hole. The tweeter is mounted on the frame through the second receiving cavity. Thus, the loudspeaker achieves the housing of both the mid-bass unit and the tweeter within a single frame, helping to save equipment space and simplify the assembly process.

[0081] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A loudspeaker, characterized in that, The loudspeaker includes: A basin stand, the basin stand having a first receiving cavity and a second receiving cavity, and the bottom of the basin stand having a protrusion; A mid-bass unit, comprising a first magnetic circuit system and a first vibration system, wherein the first magnetic circuit system and the first vibration system are disposed on the frame via a first receiving cavity, the first magnetic circuit system protruding from the bottom of the frame, the bottom of the first magnetic circuit system being flush with the end face of the protrusion, the bottom of the first magnetic circuit system having a first vent hole communicating with the first receiving cavity, the inner wall of the first receiving cavity having a groove communicating with the first receiving cavity and penetrating to the end face of the protrusion, the first magnetic circuit system cooperating with the groove to form a second vent hole; and A tweeter unit, the tweeter unit being located in the second receiving cavity and disposed on the frame.

2. The loudspeaker according to claim 1, characterized in that, The two first air vents are symmetrical about the first axis of symmetry; The two second vent holes are symmetrical about a second axis of symmetry, which is perpendicular to the first axis of symmetry.

3. The loudspeaker according to claim 1, characterized in that, The bottom of the first magnetic circuit system is provided with a first mesh cloth, which covers the opening of the first vent hole; The bottom of the basin stand is provided with a second mesh fabric, which covers the opening of the second vent hole.

4. The loudspeaker according to claim 1, characterized in that, The first magnetic circuit system includes: A first magnetic yoke is connected to the basin stand and protrudes from the bottom of the basin stand. The first magnetic yoke is provided with a first vent hole, and the first magnetic yoke cooperates with the groove to form a second vent hole. A first magnet, the first magnet being disposed on the first yoke; and The first pole piece is disposed on the first magnet.

5. The loudspeaker according to claim 4, characterized in that, The first magnetic yoke is provided with a first weight reduction hole.

6. The loudspeaker according to claim 4, characterized in that, The first electrode is provided with a second weight reduction hole.

7. The loudspeaker according to claim 4, characterized in that, The first magnetic yoke includes: A first main body portion, on which the first magnet is disposed, and a first sidewall extending upward from the first main body portion, the first sidewall being spaced apart from the first magnet and the first pole piece, the first sidewall forming a second vent hole in conjunction with the groove; and The outward expansion portion extends outward from the first main body portion, and the outward expansion portion is provided with the first vent hole. The outward expansion portion extends upward to form a second sidewall, and the second sidewall is spaced apart from the first magnet and the first pole piece.

8. The loudspeaker according to any one of claims 1-7, characterized in that, The first vibration system includes: A first voice coil, the first voice coil being suspended in a first magnetic gap formed by the first magnetic circuit system; and A first diaphragm is connected to the top of the basket and the top of the first voice coil.

9. The loudspeaker according to claim 8, characterized in that, The first vibration system further includes: The first dome is connected to the first voice coil and the first diaphragm.

10. The loudspeaker according to claim 8, characterized in that, The first vibration system further includes: A centering support is provided, which is connected to the bottom of the frame and the bottom of the first voice coil.

11. The loudspeaker according to any one of claims 1-7, characterized in that, The tweeter unit includes a second magnetic circuit system and a second vibration system, which are disposed on the frame via the second receiving cavity.

12. The loudspeaker according to claim 11, characterized in that, The second magnetic circuit system protrudes from the bottom of the basin stand, and the bottom of the second magnetic circuit system is provided with a third vent hole, which is connected to the second receiving cavity.

13. The loudspeaker according to claim 12, characterized in that, The bottom of the second magnetic circuit system is provided with a third mesh, which covers the opening of the third vent hole.

14. The loudspeaker according to claim 12, characterized in that, The second magnetic circuit system includes: A second magnetic yoke is connected to the basin stand and protrudes from the bottom of the basin stand, and the third vent hole is provided on the second magnetic yoke; A second magnet, the second magnet being disposed on the second yoke; and The second pole piece is disposed on the second magnet.

15. The loudspeaker according to claim 14, characterized in that, The second magnetic yoke includes: The second main body has a second magnet on it, and a third sidewall extends upward from the second main body to form a third sidewall. The third sidewall is spaced apart from the second magnet and the second pole piece. The second main body has a third vent hole.

16. The loudspeaker according to claim 15, characterized in that, The second magnet has a first leakage hole, which is aligned with the third vent hole; The second electrode is provided with a second leakage hole, which is aligned with the first leakage hole and communicates with the second receiving cavity.

17. The loudspeaker according to claim 11, characterized in that, The second vibration system includes: The second voice coil is suspended in the second magnetic gap formed by the second magnetic circuit system; and The second diaphragm is connected to the top of the basket and the top of the second voice coil.

18. The loudspeaker according to claim 17, characterized in that, The second vibration system also includes: The second dome is connected to the second voice coil and the second diaphragm.

19. The loudspeaker according to claim 18, characterized in that, The second sphere has a fourth vent hole.

20. The loudspeaker according to claim 19, characterized in that, The second dome is provided with a waterproof and breathable membrane, which covers the opening of the fourth vent.

Images