midrange speaker

Abstract

This utility model relates to a midrange loudspeaker, belonging to the technical field of loudspeakers. It improves heat dissipation efficiency through an integrated cast aluminum frame, solving the problem of high temperatures caused by continuous voice coil operation. Simultaneously, it employs a junction box composed of a cover and connecting tabs to prevent short circuits in the leads. Combined with the cone and curved diaphragm, it optimizes mid-frequency acoustic performance. Furthermore, it utilizes connectors to bolt the U-shaped iron to the frame, enhancing structural stability and enabling modular assembly. This utility model solves the problems of poor heat dissipation, short-circuit risk, and vibration instability in traditional loudspeakers, combining the advantages of efficient heat dissipation and high reliability.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a midrange loudspeaker. Background Technology

[0002] With the development of audio technology, midrange speaker technology has emerged. Midrange speakers achieve accurate reproduction of mid-frequency sound by optimizing the acoustic structure, and use a plastic frame as the core support component to fix the voice coil and vibration system.

[0003] In related technologies, traditional midrange loudspeakers ensure vibration stability through a rigid connection between a plastic basket and a voice coil frame, while using an external positive and negative lead design to transmit audio signals.

[0004] However, the above technical solution has the following drawbacks:

[0005] First, although the plastic frame can meet the structural support requirements, its low thermal conductivity means that the heat generated by the voice coil cannot be effectively conducted and dissipated. Over time, this leads to an abnormal increase in the voice coil temperature, resulting in power loss and performance degradation.

[0006] Secondly, the exposed positive and negative leads pose a risk of short circuit due to mechanical displacement during speaker vibration, which may cause signal distortion or even permanent damage to the speaker. Utility Model Content

[0007] In response to the shortcomings of the existing manufacturing technology, the applicant provides a midrange speaker that enables concealed wiring, avoids wire contact, and improves heat dissipation.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A midrange loudspeaker, comprising:

[0010] The vibration assembly is composed of a cone, an aluminum support, and a voice coil connected in sequence. The cone is an arc-shaped vibrating diaphragm, and the voice coil is a conductive winding wound around an aluminum frame. An aluminum support is provided between the top of the voice coil and the cone.

[0011] A magnetic circuit assembly includes a magnetic pole core, a magnet, and a U-shaped iron. The magnetic pole core is a cylindrical magnetic conductor. The magnet is disposed on the upper and lower sides of the magnetic pole core. The U-shaped iron has its opening facing upward and is located below the magnet. The U-shaped iron is used to assemble the magnetic pole core and the magnet inside.

[0012] The support and positioning assembly includes a positioning bracket and a frame. The positioning bracket is fixed between the voice coil and the frame. The frame is an integral frame. The bottom of the frame is snapped into the outer edge of the U-shaped iron.

[0013] The circuit connection assembly includes a terminal block disposed on the side wall of the basket frame, one end of which is soldered to the voice coil lead, and the other end extends to the outside of the basket frame to form a solder terminal.

[0014] In one embodiment, the junction box includes a cover and a connector plate, the cover of which encloses the connector plate to form a concealed wiring structure, and the connector plate is connected to the voice coil lead.

[0015] In one embodiment, the covering is configured to cover a plastic part.

[0016] In one embodiment, the junction box is fixedly mounted to the side wall of the basin frame via a first connector.

[0017] In one embodiment, the U-shaped iron is fixedly mounted to the bottom of the basin stand by a second connector.

[0018] In one embodiment, the first connector is a bolt structure, and the first connector passes sequentially through the wiring board and the basin frame from the outside of the side wall.

[0019] In one embodiment, the second connector is a bolt structure, and the second connector passes through the basket frame and the U-shaped iron sequentially from the bottom.

[0020] In one embodiment, a nameplate is also installed on the bottom surface of the speaker frame to identify the speaker's parameter information.

[0021] In one embodiment, the frame is a one-piece cast aluminum frame, and the cone is a one-piece molded aluminum cone.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model has a compact structure. By using an integrated cast aluminum frame instead of a traditional plastic frame, the heat generated during the operation of the voice coil can be quickly conducted to the frame and diffused to the external environment, avoiding abnormal temperature rise of the voice coil, power loss and performance degradation caused by heat accumulation. At the same time, the integrated design reduces seams, improves the overall thermal conductivity of the structure, and enhances mechanical strength.

[0024] This utility model also has the following advantages:

[0025] (1) The circuit connection component of this utility model adopts a hidden wiring structure that combines a cover and a connector; the connector is wrapped by a plastic cover to isolate the voice coil lead from the external environment and prevent the lead from short-circuiting or breaking due to mechanical displacement when the speaker vibrates.

[0026] (2) The positioning support plate of this utility model is fixed between the voice coil and the frame to provide precise vibration guidance; the U-shaped iron is snapped into the bottom of the frame and reinforced by the second connector (bolt structure), which can enhance the mechanical stability of the magnetic circuit assembly and the support assembly and avoid loosening of components due to long-term vibration;

[0027] (3) The wiring board of this utility model is fixed to the side wall of the basin frame through the first connector, which simplifies the assembly process and facilitates modular assembly and subsequent maintenance of the production line. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure under explosive conditions.

[0030] Figure 3 This is an exploded view of the wiring board of this utility model.

[0031] The components are: 1. Cone; 2. Aluminum bracket; 3. Voice coil; 4. Positioning support; 5. Magnetic pole core; 6. Magnet; 7. U-shaped iron; 8. Frame; 9. Terminal block; 10. First connector; 11. Nameplate; 12. Second connector; 901. Terminal block; 902. Sheath. Detailed Implementation

[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0036] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0037] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0038] like Figures 1-3 The accompanying drawing shows a structural diagram of a midrange loudspeaker according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0039] This application provides a midrange loudspeaker, including a vibration component, a magnetic circuit component, a support and positioning component, and a circuit connection component, which work together to optimize heat dissipation efficiency, improve structural stability, and avoid the risk of short circuits in the leads.

[0040] In some embodiments, the vibration assembly includes a cone 1, an aluminum support 2, and a voice coil 3 connected in sequence.

[0041] Among them, the cone 1 is an arc-shaped vibrating diaphragm made of one-piece molded aluminum material, which can enhance the mid-frequency acoustic performance; the voice coil 3 is a conductive winding wound on an aluminum frame, and its top end is fixedly connected to the cone 1 through the aluminum support 2.

[0042] Furthermore, the aluminum support 2 serves as an intermediate connector, both transmitting vibrational energy and assisting in heat dissipation. The vibration generated by the voice coil 3 during operation is transmitted to the cone 1 through the aluminum support 2, driving the air to generate sound waves.

[0043] In some embodiments, the magnetic circuit assembly includes a magnetic pole core 5, a magnet 6, and a U-iron 7;

[0044] Among them, the magnetic pole core 5 is a cylindrical magnetic conductor, which is vertically set on the central axis of the speaker; the magnet 6 is a ring structure, which is set on the upper and lower sides of the magnetic pole core 5 to form a symmetrical magnetic field; the U-shaped magnet 7 is a U-shaped magnetic conductor with its opening facing upward and located below the magnet 6, which is used to assemble the magnetic pole core 5 and the magnet 6 inside to form a magnetic circuit.

[0045] Furthermore, the outer edge of the U-shaped iron 7 is snapped into the bottom of the basin frame 8, and passes through and is secured from the bottom of the basin frame 8 by the second connector 12 (bolt structure) to ensure the connection between the magnetic circuit assembly and the support assembly.

[0046] In some embodiments, the support positioning assembly includes a positioning support 4 and a basin frame 8;

[0047] Among them, the positioning support plate 4 is a plate-shaped structure, with its inner edge fixed to the outside of the voice coil 3 and its outer edge fixed to the inside of the frame 8, providing radial limit and vibration guidance for the voice coil 3, ensuring that the voice coil 3 moves linearly in the magnetic field;

[0048] The basin frame 8 is a one-piece cast aluminum basin frame, and the bottom of the basin frame 8 is provided with an annular groove that is tightly connected to the outer edge of the U-shaped iron 7;

[0049] Furthermore, the cast aluminum material of the frame 8 has high thermal conductivity, which can quickly conduct the heat generated by the voice coil 3 to the external environment, avoiding performance degradation caused by temperature rise.

[0050] Furthermore, a nameplate 11 is installed on the bottom surface of the speaker frame 8, which identifies the speaker's parameter information by laser engraving or pasting.

[0051] In some embodiments, the circuit connection assembly includes a terminal block 9, which is fixed to the outer side wall of the basin frame 8 by a first connector 10 (bolt structure).

[0052] Furthermore, the terminal block 9 is composed of a terminal piece 901 and a cover 902; wherein, the terminal piece 901 is a metal conductive piece, one end of which is welded to the lead wire of the voice coil 3, and the other end extends to the outside of the frame 8 to form a welding terminal; the cover 902 is an insulating plastic part, which completely wraps the terminal piece 901 through injection molding process to form a hidden wiring structure, which isolates the lead wire from physical contact with the external environment and avoids short circuits or breaks caused by vibration.

[0053] The assembly process of the terminal block 9 is as follows: After pre-assembling the cover 902 and the terminal piece 901, the terminal block 9 and the basin frame 8 are passed through the outside of the side wall of the basin frame 8 by the first connector 10, and finally tightened and fixed.

[0054] In practice, the assembly process of this utility model is as follows:

[0055] Magnetic circuit assembly installation: Place the magnetic pole core 5 vertically inside the U-shaped iron 7, install the magnets 6 on the upper and lower sides, then insert the outer edge of the U-shaped iron 7 into the annular groove at the bottom of the basin frame 8, and lock it in place with the second connector 12 bolts.

[0056] Vibration assembly assembly: Insert the voice coil 3 into the magnetic gap between the magnetic pole core 5 and the magnet 6, and fix the top of the voice coil 3 to the cone 1 by means of the aluminum support 2;

[0057] Positioning support plate fixing: The inner edge of the positioning support plate 4 is glued to the outside of the voice coil 3, and the outer edge is fixed to the inside of the frame 8;

[0058] Terminal block installation: Fix the pre-assembled terminal block 9 to the side wall of the frame 8 via the first connector 10, and weld the voice coil 3 lead to the terminal block 901;

[0059] Nameplate affixing: Install nameplate 11 on the bottom surface of basin stand 8 to complete parameter labeling.

[0060] The structure of this utility model is reasonable. The basket frame 8 adopts an integrated cast aluminum basket frame to achieve efficient heat dissipation. The terminal block 9 eliminates the risk of short circuit through the cooperation of the terminal piece 901 and the cover 902. In addition, the positioning support piece 4 ensures the precise vibration of the voice coil 3, and the arc-shaped cone 1 can optimize the mid-frequency acoustic performance. Overall, the modular design of each component simplifies the assembly process and is suitable for mass production and later maintenance.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A midrange loudspeaker characterized by, include: The vibration assembly is formed by connecting the cone (1), the aluminum support (2) and the voice coil (3) in sequence. The cone (1) is an arc-shaped vibrating diaphragm, and the voice coil (3) is a conductive winding wound on an aluminum frame. The aluminum support (2) is set between the top of the voice coil (3) and the cone (2). The magnetic circuit assembly includes a magnetic pole core (5), a magnet (6) and a U-iron (7). The magnetic pole core (5) is a cylindrical magnetic conductor. The magnet (6) is disposed on the upper and lower sides of the magnetic pole core (5). The opening of the U-iron (7) faces upward and is located below the magnet (6). The U-iron (7) is used to assemble the magnetic pole core (5) and the magnet (6) inside. The support and positioning assembly includes a positioning support piece (4) and a basket frame (8). The positioning support piece (4) is fixed between the voice coil (3) and the basket frame (8). The basket frame (8) is an integral basket frame. The bottom of the basket frame (8) is snapped with the outer edge of the U-shaped iron (7). The circuit connection assembly includes a terminal block (9) which is disposed on the side wall of the frame (1). One end of the terminal block (9) is soldered to the lead wire of the voice coil (3), and the other end extends to the outside of the frame (8) to form a solder terminal.

2. The midrange loudspeaker of claim 1, wherein, The junction box (9) includes a cover (902) and a connector (901). The cover (902) covers the connector (901) to form a hidden wiring structure, and the connector (901) is connected to the lead wire of the voice coil (3).

3. The midrange loudspeaker of claim 2, wherein, The structure of the covering (902) is configured to cover a plastic part.

4. The midrange loudspeaker of claim 1, wherein, The wiring board (9) is fixedly assembled to the side wall of the basin frame (1) via the first connector (10).

5. The midrange loudspeaker according to claim 1, characterized in that, The U-shaped iron (7) is fixedly assembled on the bottom of the basin frame (1) by the second connector (12).

6. The midrange loudspeaker of claim 4, wherein, The first connector (10) is a bolt structure, and the first connector (10) passes through the wiring plate (9) and the basin frame (1) sequentially from the outside of the side wall.

7. The midrange loudspeaker of claim 5, wherein, The second connector (12) is a bolt structure, and the second connector (12) passes through the basin frame (1) and the U-shaped iron (7) from the bottom.

8. The midrange loudspeaker of claim 1, wherein, A nameplate (11) is also installed on the bottom surface of the basket (1) to identify the speaker's parameter information.

9. The midrange loudspeaker of claim 1, wherein, The basket frame (8) is an integral cast aluminum basket frame, and the cone (1) is an integrally formed aluminum cone.

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