loudspeaker

Abstract

This invention provides a loudspeaker, including a magnetic circuit system and a vibration system. The vibration system includes a voice coil unit and a diaphragm. The voice coil unit includes a first planar voice coil and a vertical voice coil. The magnetic circuit system includes a first magnet and a second magnet, with a magnet gap forming between them. The positions of the first planar voice coil and the vertical voice coil correspond to the magnet gap, with the vertical voice coil extending into the magnet gap and maintaining a distance from both the first and second magnets. In addition to the first magnet, the magnetic circuit system of this loudspeaker also includes a second magnet, enhancing the magnetic field and improving the loudspeaker's performance. The voice coil unit includes not only a vertical voice coil but also a first planar voice coil, providing more voice coils and allowing for more efficient utilization of the magnetic field of the magnetic circuit system, further improving the loudspeaker's performance.

Description

Technical Field

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

[0002] A loudspeaker, also known as a horn, is a transducer that converts electrical signals into sound signals. Traditional loudspeakers typically consist of a diaphragm, a magnet, a turret (T-iron), and a voice coil mounted on the diaphragm. An annular gap forms between the magnet and the turret. The voice coil, made of wire, is usually vertical and located within the annular gap between the magnet and the turret. The voice coil vibrates under the influence of the magnetic field, thus causing the diaphragm to vibrate. However, this type of loudspeaker only utilized a portion of the magnetic field, resulting in insufficient loudspeaker performance. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide an improved loudspeaker, addressing the aforementioned deficiencies in related technologies.

[0004] The technical solution adopted by this utility model to solve its technical problem includes: providing a loudspeaker, including a magnetic circuit system and a vibration system, wherein the vibration system includes a voice coil unit that can vibrate under the action of the magnetic field of the magnetic circuit system and a diaphragm driven by the voice coil unit, the voice coil unit is disposed on one side of the magnetic circuit system, the voice coil unit includes a first planar voice coil and a vertical voice coil, the first planar voice coil is disposed on the diaphragm, both the first planar voice coil and the vertical voice coil are annular, the vertical voice coil is disposed on the side of the first planar voice coil facing the magnetic circuit system; the dimension of the first planar voice coil in the plane direction of the diaphragm is greater than the dimension perpendicular to the plane direction of the diaphragm, and the dimension of the vertical voice coil in the plane direction of the diaphragm is smaller than the dimension perpendicular to the plane direction of the diaphragm;

[0005] The magnetic circuit system includes a first magnet and a second magnet, the second magnet surrounding the first magnet, a magnet gap being formed between the first magnet and the second magnet, the positions of the first planar voice coil and the vertical voice coil corresponding to the magnet gap, the vertical voice coil extending into the magnet gap and maintaining a distance from the first magnet and the second magnet.

[0006] Preferably, the vertical voice coil is connected at a position between the outer edge and the inner edge of the first planar voice coil; or the vertical voice coil is connected at the outer edge or the inner edge of the first planar voice coil.

[0007] Preferably, the vertical voice coil is positioned at the midpoint between the outer edge and the inner edge of the first planar voice coil.

[0008] Preferably, the magnetic circuit system includes a bottom washer connected to the bottom of the first magnet and the second magnet, and the bottom washer forms the bottom of the gap between the magnets.

[0009] Preferably, the magnetic circuit system includes a top washer connected to the top of the first magnet, the outer edge of the top washer corresponding to the inner side of the second magnet, and the first magnet, the top washer and the second magnet defining the magnet gap.

[0010] Preferably, the voice coil unit includes a second planar voice coil disposed on the diaphragm, the first planar voice coil surrounds the second planar voice coil, the dimension of the second planar voice coil in the plane direction of the diaphragm is greater than the dimension in the direction perpendicular to the plane direction of the diaphragm, and the position of the second planar voice coil corresponds to the first magnet.

[0011] Preferably, the diaphragm includes a planar portion in the middle, and the second planar voice coil and the first planar voice coil are disposed on the planar portion.

[0012] Preferably, the diaphragm includes an arched portion surrounding the periphery of the planar portion, the loudspeaker includes a bracket, the magnetic circuit system and the vibration system are disposed on the bracket, the inner edge of the arched portion is connected to the outer edge of the planar portion, and the outer edge of the arched portion is connected to the bracket.

[0013] Preferably, the second planar voice coil, the vertical voice coil, and the magnet gap are in the shape of a circular ring or a square ring.

[0014] Preferably, the voice coil unit is located on the side of the diaphragm facing the magnetic circuit system.

[0015] The technical solution of this utility model has at least the following beneficial effects: Compared with traditional loudspeakers, firstly, the magnetic circuit system includes not only a first magnet but also a second magnet, which enhances the magnetic field and improves the loudspeaker's performance. Secondly, the voice coil unit includes not only a vertical voice coil but also a first planar voice coil, with the second magnet surrounding the first magnet. The positions of the first planar voice coil and the vertical voice coil correspond to the gap between the magnets, and the vertical voice coil extends into the gap between the magnets. The addition of more voice coils and their positional design allows for more efficient utilization of the magnetic field of the magnetic circuit system, further improving the loudspeaker's performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a loudspeaker according to one embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A top view of the speaker.

[0019] Figure 3 yes Figure 2 A cross-sectional view of position AA.

[0020] Figure 4 yes Figure 3 A magnified view of part P.

[0021] The labels in the diagram represent: magnetic circuit system 1, magnet gap 10, first magnet 11, second magnet 12, bottom washer 13, top washer 14, vibration system 2, diaphragm 21, flat part 211, arched part 212, voice coil unit 22, second planar voice coil 221, first planar voice coil 222, vertical voice coil 223, voice coil gap 220, and support 3. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. It should be understood that if terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" appear in the text, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and describing the structure and operation in a specific orientation, they are only for the convenience of describing the technical solution and do not indicate that the device or element referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" appear in the text and should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "below" another element, the element can be located "directly" or "indirectly" on the other element, or there may be one or more intermediary elements. If the terms "first," "second," etc., appear in this document only for the convenience of describing the technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features, then features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0024] See Figure 1-4The loudspeaker in one embodiment of this utility model includes a magnetic circuit system 1 and a vibration system 2. The vibration system 2 includes a voice coil unit 22 that can vibrate under the magnetic field of the magnetic circuit system 1 and a diaphragm 21 driven by the voice coil. The voice coil unit 22 is disposed on one side of the magnetic circuit system 1. The voice coil unit 22 includes a first planar voice coil 222 and a vertical voice coil 223. The first planar voice coil 222 is disposed on the diaphragm 21. Both the first planar voice coil 222 and the vertical voice coil 223 are annular. The vertical voice coil 223 is disposed on the side of the first planar voice coil 222 facing the magnetic circuit system 1. The term "planar voice coil" means that the dimension of the first planar voice coil 222 in the plane direction of the diaphragm 21 is larger than the dimension in the direction perpendicular to the plane of the diaphragm 21. Preferably, the planar voice coil can be formed by winding wire, and in the direction perpendicular to the plane of the diaphragm 21, it can be a single layer or multiple layers of wire coil; for annular voice coils, this means that the radial dimension is larger than the axial dimension. A vertical voice coil is defined as a voice coil 223 whose dimension in the plane of the diaphragm 21 is smaller than its dimension in the plane perpendicular to the diaphragm 21. Preferably, the vertical voice coil can be formed by winding wires, and can be a single-layer or multi-layer wire coil along the plane. For a circular voice coil, this means that the radial dimension is smaller than the axial dimension.

[0025] The magnetic circuit system 1 includes a first magnet 11 and a second magnet 12. The second magnet 12 surrounds the first magnet 11 and is preferably a ring magnet. A magnet gap 10 is formed between the first magnet 11 and the second magnet 12. The positions of the first planar voice coil 222 and the vertical voice coil 223 correspond to the magnet gap 10. The vertical voice coil 223 extends into the magnet gap 10 and maintains a distance from the first magnet 11 and the second magnet 12. This distance provides space for the vibration generated by the voice coil unit 22 under the action of the magnetic field of the magnetic circuit system 1.

[0026] Compared to traditional loudspeakers, this loudspeaker has several advantages. First, the magnetic circuit system 1 includes not only a first magnet 11 but also a second magnet 12, which enhances the magnetic field and improves the loudspeaker's performance. Second, the voice coil unit 22 includes not only a vertical voice coil 223 but also a first planar voice coil 222. The second magnet 12 surrounds the first magnet 11. The positions of the first planar voice coil 222 and the vertical voice coil 223 correspond to the magnet gap 10, with the vertical voice coil 223 extending into the magnet gap 10. The addition of more voice coils and their placement design allows for more efficient utilization of the magnetic field of the magnetic circuit system 1, further improving the loudspeaker's performance.

[0027] Furthermore, one end of the vertical voice coil 223 is connected to the first planar voice coil 222, and the other end extends into the magnet gap 10. See also Figure 3-4In some embodiments, the vertical voice coil 223 is connected between the outer edge and the inner edge of the first planar voice coil 222; preferably, the vertical voice coil 223 is connected at the middle position between the outer edge and the inner edge of the first planar voice coil 222. Alternatively, in other embodiments, the vertical voice coil 223 may also be located at the outer edge or the inner edge of the first planar voice coil 222.

[0028] Furthermore, the magnetic circuit system 1 includes a bottom washer 13, which is connected to the bottom of the first magnet 11 and the second magnet 12. The bottom washer 13 forms the bottom of the magnet gap 10, and preferably is sheet-shaped. The bottom washer 13 serves to conduct magnetism.

[0029] Furthermore, the magnetic circuit system 1 includes a top washer 14, which is connected to the top of the first magnet 11. The outer edge of the top washer 14 corresponds to the inner side of the second magnet 12 (i.e., the side facing the first magnet 11). The first magnet 11, the top washer 14, and the second magnet 12 define a magnet gap 10. The vertical voice coil 223 extends to the top washer 14 and between the first magnet 11 and the second magnet 12. The top washer 14 is preferably sheet-shaped and is an annular shape corresponding to the first magnet 11.

[0030] Furthermore, the voice coil unit 22 includes a second planar voice coil 221, which is disposed on the diaphragm 21. The second planar voice coil 221 is annular or circular, and a first planar voice coil 222 surrounds the second planar voice coil 221. The dimension of the second planar voice coil 221 in the plane of the diaphragm 21 is larger than its dimension in the direction perpendicular to the plane of the diaphragm 21. Preferably, it can be a single-layer or multi-layer wire coil in the direction perpendicular to the plane of the diaphragm 21; for annular voice coils, this means that the radial dimension is larger than the axial dimension. Furthermore, the position of the second planar voice coil 221 corresponds to the first magnet 11. Since the voice coil unit 22 also includes the second planar voice coil 221, the increased number of voice coils and their positional design allow for more efficient utilization of the magnetic field of the magnetic circuit system 1, further improving the performance of the loudspeaker.

[0031] Furthermore, the diaphragm 21 includes a planar portion 211 in the middle, on which the second planar voice coil 221 and the first planar voice coil 222 are disposed. Thus, the second planar voice coil 221 and the first planar voice coil 222 are on a first plane, thereby adapting the planar structure of the middle portion 211 of the diaphragm 21 to the planar structure of the second planar voice coil 221 and the first planar voice coil 222. Preferably, a voice coil gap 220 is provided between the second planar voice coil 221 and the first planar voice coil 222, that is, a voice coil gap 220 is provided between them in the planar direction of the diaphragm 21, thereby separating the second planar voice coil 221 and the first planar voice coil 222.

[0032] Preferably, the diaphragm 21 includes an arched portion 212 surrounding the periphery of the planar portion 211. The loudspeaker includes a bracket 3, a magnetic circuit system 1 and a vibration system 2 disposed on the bracket 3. The inner edge of the arched portion 212 is connected to the outer edge of the planar portion 211, and the outer edge of the arched portion 212 is connected to the bracket 3. The arched portion 212 enables the diaphragm 21 to generate large vibrations.

[0033] Furthermore, the second planar voice coil 221, the vertical voice coil 223, and the magnet gap 10 are in the shape of a circular ring or a square ring. Preferably, when the second planar voice coil 221, the vertical voice coil 223, and the magnet gap 10 are in the shape of a circular ring, the first magnet 11 is in the shape of a cylinder or a ring, the second magnet 12 is in the shape of a ring, and the second planar voice coil is in the shape of a ring, the speaker as a whole can be a circular speaker; when the second planar voice coil 221, the vertical voice coil 223, and the magnet gap 10 are in the shape of a square ring, the first magnet 11 is in the shape of a square cylinder or a square shape, the second magnet 12 is in the shape of a square ring, and the second planar voice coil is in the shape of a square ring, the speaker as a whole can be a square speaker.

[0034] Furthermore, the voice coil unit 22 is located on the side of the diaphragm 21 facing the magnetic circuit system 1, so that the second planar voice coil 221, the first planar voice coil 222 and the vertical voice coil 223 are all located on the side of the diaphragm 21 facing the magnetic circuit system 1.

[0035] In summary, compared to traditional loudspeakers, this loudspeaker, firstly, includes a second magnet 12 in addition to a first magnet 11 in its magnetic circuit system 1, which enhances the magnetic field and improves the loudspeaker's performance. Secondly, the voice coil unit 22 includes a vertical voice coil 223, a second planar voice coil 221, and a first planar voice coil 222. The second magnet 12 surrounds the first magnet 11, and the positions of the first planar voice coil 222 and the vertical voice coil 223 correspond to the magnet gap 10. The vertical voice coil 223 extends into the magnet gap 10. The addition of more voice coils and their placement design allows for more efficient utilization of the magnetic field of the magnetic circuit system 1, further improving the loudspeaker's performance.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, this utility model can have various modifications, combinations, and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A loudspeaker, characterized in that, The system includes a magnetic circuit system (1) and a vibration system (2). The vibration system (2) includes a voice coil unit (22) that can vibrate under the action of the magnetic field of the magnetic circuit system (1) and a diaphragm (21) driven by the voice coil unit (22). The voice coil unit (22) is disposed on one side of the magnetic circuit system (1). The voice coil unit (22) includes a first planar voice coil (222) and a vertical voice coil (223). The first planar voice coil (222) is disposed on the diaphragm (21). Both the planar voice coil (222) and the vertical voice coil (223) are annular. The vertical voice coil (223) is located on the side of the first planar voice coil (222) facing the magnetic circuit system (1). The first planar voice coil (222) has a larger dimension in the plane of the diaphragm (21) than its dimension in the plane perpendicular to the diaphragm (21), and the vertical voice coil (223) has a smaller dimension in the plane of the diaphragm (21) than its dimension in the plane perpendicular to the diaphragm (21). The magnetic circuit system (1) includes a first magnet (11) and a second magnet (12). The second magnet (12) surrounds the first magnet (11). A magnet gap (10) is formed between the first magnet (11) and the second magnet (12). The positions of the first planar voice coil (222) and the vertical voice coil (223) correspond to the magnet gap (10). The vertical voice coil (223) extends into the magnet gap (10) and maintains a distance from the first magnet (11) and the second magnet (12).

2. The loudspeaker according to claim 1, characterized in that, The vertical voice coil (223) is connected between the outer edge and the inner edge of the first planar voice coil (222); or the vertical voice coil (223) is connected at the outer edge or the inner edge of the first planar voice coil (222).

3. The loudspeaker according to claim 2, characterized in that, The vertical voice coil (223) is located at the middle position between the outer edge and the inner edge of the first planar voice coil (222).

4. The loudspeaker according to claim 1, characterized in that, The magnetic circuit system (1) includes a bottom washer (13) connected to the bottom of the first magnet (11) and the second magnet (12), and the bottom washer (13) forms the bottom of the magnet gap (10).

5. The loudspeaker according to claim 1, characterized in that, The magnetic circuit system (1) includes a top washer (14) connected to the top of the first magnet (11), the outer edge of the top washer (14) corresponding to the inner side of the second magnet (12), and the first magnet (11), the top washer (14) and the second magnet (12) defining the magnet gap (10).

6. The loudspeaker according to any one of claims 1-5, characterized in that, The voice coil unit (22) includes a second planar voice coil (221), which is disposed on the diaphragm (21). The first planar voice coil (222) surrounds the second planar voice coil (221). The second planar voice coil (221) has a larger dimension in the plane of the diaphragm (21) than in the plane perpendicular to the diaphragm (21). The position of the second planar voice coil (221) corresponds to the first magnet (11).

7. The loudspeaker according to claim 6, characterized in that, The diaphragm (21) includes a planar portion (211) in the middle, and the second planar voice coil (221) and the first planar voice coil (222) are disposed on the planar portion (211).

8. The loudspeaker according to claim 7, characterized in that, The diaphragm (21) includes an arched portion (212) surrounding the periphery of the planar portion (211), the loudspeaker includes a bracket (3), the magnetic circuit system (1) and the vibration system (2) are disposed on the bracket (3), the inner edge of the arched portion (212) is connected to the outer edge of the planar portion (211), and the outer edge of the arched portion (212) is connected to the bracket (3).

9. The loudspeaker according to claim 6, characterized in that, The second planar voice coil (221), the vertical voice coil (223), and the magnet gap (10) are in the shape of a circular ring or a square ring.

10. The loudspeaker according to any one of claims 1-5, characterized in that, The voice coil unit (22) is located on the side of the diaphragm (21) facing the magnetic circuit system (1).

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