Loudspeaker

Abstract

An embodiment of the utility model discloses a loudspeaker, which comprises a magnetic circuit component, a vibration component and a power connection piece, the magnetic circuit component comprises a central magnetic circuit and an edge magnetic circuit which are used for forming a magnetic gap, and the vibration component comprises a voice coil suspended in the magnetic gap, and a first voice diaphragm and a second voice diaphragm which are fixed on the edge magnetic circuit. The first voice diaphragm is located above the central magnetic circuit, the second voice diaphragm is located below the central magnetic circuit, the voice coil comprises an upper part and a lower part, the upper part is connected with the first voice diaphragm and winds along a first direction, the lower part is connected with the second voice diaphragm and winds along a second direction or is arranged as a fixed part, and the power connection part is arranged on the side magnetic circuit and is electrically connected with the voice coil. Therefore, the loudspeaker solves the problem of rolling vibration of the voice diaphragm, and the voice coil is located at the absolute center of the magnetic circuit, so that the symmetry and flatness of a BL curve are better, and the purpose of protecting call privacy of the electronic equipment provided with the loudspeaker is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic conversion, in particular to a loudspeaker. Background Art

[0002] The speakers of existing electronic devices usually have only one diaphragm. When the diaphragm vibrates with the voice coil, it causes rolling vibration due to nonlinearity, resulting in distortion and noise. At the same time, electronic devices equipped with a single diaphragm speaker have the problem of poor call privacy. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a speaker, by respectively providing a first sound membrane and a second sound membrane on the upper and lower sides of the voice coil to avoid rolling vibration and optimize the BL curve, and to help protect the privacy of calls in electronic equipment.

[0004] The utility model provides a loudspeaker, comprising: a magnetic circuit component, the magnetic circuit component comprises a central magnetic circuit and a side magnetic circuit, the side magnetic circuit is surrounded to form a cavity, the central magnetic circuit is welded to the side magnetic circuit and is located in the cavity, a magnetic gap is formed between the central magnetic circuit and the side magnetic circuit; a vibration component, the vibration component comprises a first sound membrane, a second sound membrane and a voice coil, the first sound membrane and the second sound membrane are fixedly arranged on the side magnetic circuit, the first sound membrane is located above the central magnetic circuit, the second sound membrane is located below the central magnetic circuit, the voice coil is suspended in the magnetic gap, the voice coil comprises an upper part and a lower part, the upper part is fixedly connected to the first sound membrane, the lower part is fixedly connected to the second sound membrane, the upper part is wound along a first direction, the lower part is wound along a second direction or is arranged as a fixed part; and an electrical connection component, the electrical connection component is arranged on the side magnetic circuit and is electrically connected to the voice coil.

[0005] In some embodiments, the upper portion is wound along a first direction, the lower portion is wound along a second direction, and the number of turns of the upper portion is greater than or equal to the number of turns of the lower portion.

[0006] In some embodiments, the side magnetic circuit includes: a first magnetic conductive frame, which is disposed around the outside of the central magnetic circuit; and a second magnetic conductive frame, which is connected to the central magnetic circuit and the top of the first magnetic conductive frame.

[0007] In some embodiments, the first sound membrane is disposed between the first magnetic conductive frame and the second magnetic conductive frame; the second sound membrane is disposed at the bottom of the first magnetic conductive frame.

[0008] In some embodiments, the second magnetic conductive frame includes: a central portion, which is connected to the top of the central magnetic circuit; a second edge portion, which is located outside the central portion and connected to the top of the first magnetic conductive frame; and a second connecting portion, which connects the central portion and the second edge portion.

[0009] In some embodiments, the second connection portion has a thickness smaller than that of the central portion and the second edge portion, and an upper surface of the second connection portion is flush with upper surfaces of the central portion and the second edge portion.

[0010] In some embodiments, the first magnetic conductive frame includes: a surrounding portion, which is arranged around the outside of the central magnetic circuit; a first edge portion, which is located on the outside of the surrounding portion and connected to the second edge portion; and a first connecting portion, which connects the surrounding portion and the first edge portion.

[0011] In some embodiments, the upper portion of the first edge portion is convex to form a first docking portion; the upper portion of the second edge portion is concave to form a second docking portion, and the second docking portion is fixedly connected to the first docking portion.

[0012] In some embodiments, positions of the first connection portion and the second connection portion match each other.

[0013] In some embodiments, the upper portion of the surrounding portion is recessed to form a drain groove.

[0014] In some embodiments, a mounting portion is formed on a portion of the first edge portion that is protruded; a partial area of ​​the first sound membrane is disposed between the mounting portion and the second magnetic conductive frame.

[0015] In some embodiments, the surrounding portion has a thickness smaller than that of the first edge portion; and the first connecting portion has a thickness smaller than that of the surrounding portion.

[0016] In some embodiments, a ventilation hole is formed between the first edge portion and the second edge portion.

[0017] In some embodiments, the central magnetic circuit includes: a magnet; an upper top plate, which is disposed on the top of the magnet and fixedly connected to the second magnetic conductive frame; and a lower top plate, which is disposed on the bottom of the magnet.

[0018] In some embodiments, the upper top sheet includes: a main body portion, the main body portion is connected to the magnet; and a protrusion portion, the protrusion portion protrudes upward from the top of the main body portion and is fixedly connected to the second magnetic conductive frame.

[0019] In some embodiments, the first sound membrane includes: a first inner ring portion, which is fixedly connected to the top of the voice coil; a first folded ring portion, which is located outside the first inner ring portion and arched downward; and a first outer ring portion, which is located outside the first folded ring portion and fixed between the first magnetic conductive frame and the second magnetic conductive frame.

[0020] In some embodiments, the second sound membrane includes: a second inner ring portion, which is fixedly connected to the bottom of the voice coil; a second folded ring portion, which is located outside the second inner ring portion and arched upward; and a second outer ring portion, which is located outside the second folded ring portion and fixed to the bottom of the first magnetic conductive frame.

[0021] In some embodiments, the vibration component further includes: a spring wave, the outer edge of the spring wave is connected to the voice coil via the first sound membrane, and the inner edge of the spring wave is arranged on the central magnetic circuit.

[0022] In some embodiments, the elastic wave includes: a third inner ring portion, which is fixedly connected to the central magnetic circuit; a third folded ring portion, which is located outside the third inner ring portion and arched upward; and a third outer ring portion, which is located outside the third folded ring portion and is connected to the voice coil through the first sound membrane.

[0023] The utility model provides a loudspeaker, which includes a magnetic circuit component, a vibration component and an electrical connection part. The magnetic circuit component includes a central magnetic circuit and a side magnetic circuit for forming a magnetic gap. The vibration component includes a voice coil suspended in the magnetic gap and a first sound membrane and a second sound membrane fixed on the side magnetic circuit. The first sound membrane is located above the central magnetic circuit, and the second sound membrane is located below the central magnetic circuit. The voice coil includes an upper part and a lower part. The upper part is connected to the first sound membrane and is wound along the first direction. The lower part is connected to the second sound membrane and is wound along the second direction or is set as a fixed part. The electrical connection part is set on the side magnetic circuit and is electrically connected to the voice coil. As a result, the loudspeaker solves the problem of rolling vibration of the sound membrane. At the same time, because the voice coil is at the absolute center of the magnetic circuit, the symmetry and flatness of the BL curve are better, and it helps the electronic device to achieve the purpose of protecting the privacy of calls. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0025] Figure 1 It is a structural schematic diagram of a loudspeaker provided in an embodiment of the utility model;

[0026] Figure 2 It is an exploded schematic diagram of a speaker provided by an embodiment of the utility model;

[0027] Figure 3 It is a cross-sectional schematic diagram of a speaker provided by an embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of a voice coil provided by an embodiment of the utility model;

[0029] Figure 5 It is an exploded schematic diagram of another loudspeaker provided by an embodiment of the utility model;

[0030] Figure 6 is a cross-sectional schematic diagram of another loudspeaker provided by an embodiment of the utility model;

[0031] Figure 7 It is a schematic diagram of the structure of another voice coil provided by an embodiment of the utility model;

[0032] Figure 8 It is a structural schematic diagram of a magnetic circuit component provided by an embodiment of the utility model;

[0033] Fig. 9 It is a structural schematic diagram of a second magnetic conductive frame provided in an embodiment of the utility model;

[0034] Fig.10 It is a structural schematic diagram of a first magnetic conductive frame provided in an embodiment of the utility model;

[0035] Fig.11 It is a schematic structural diagram of an upper top sheet provided by an embodiment of the utility model;

[0036] Fig.12 It is a schematic structural diagram of a first sound membrane provided by an embodiment of the utility model;

[0037] Fig.13 It is a schematic diagram of the structure of the second sound membrane provided by an embodiment of the utility model;

[0038] Fig.14 It is a schematic diagram of the structure of the elastic wave provided by the embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 1-magnetic circuit component; 11-central magnetic circuit; 111-magnet; 112-upper top plate; 1121-main body; 1122-protrusion; 113-lower top plate; 12-side magnetic circuit; 121-first magnetic guide frame; 1211-surrounding part; 1212-first edge part; 1213-first connecting part; 1214-first docking part; 1215-leakage groove; 1216-installation part; 1217-accommodating groove; 122-second magnetic guide frame; 1221-central part; 1222-second edge part; 1223-second connecting part; 1224-second docking part; 13-magnetic Gap; 14-connection port; 15-air vent; 2-vibrating component; 21-first sound membrane; 211-first inner ring; 212-first folded ring; 213-first outer ring; 22-second sound membrane; 221-second inner ring; 222-second folded ring; 223-second outer ring; 23-voice coil; 231-upper part; 232-lower part; 233-lead wire; 24-elastic wave; 241-third inner ring; 242-third folded ring; 243-third outer ring; 25-damping rubber block; 26-middle sticker; 27-reinforcement; 3-electrical connection; 31-protective glue. DETAILED DESCRIPTION

[0041] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0042] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0043] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0045] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0046] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0047] Figure 1 is a schematic diagram of the structure of a loudspeaker provided in an embodiment of the utility model, Figure 2is an exploded schematic diagram of a speaker provided by an embodiment of the utility model, Figure 3 is a cross-sectional schematic diagram of a speaker provided by an embodiment of the utility model, combined with Figures 1 to 3 As shown, the loudspeaker includes a magnetic circuit component 1 and a vibration component 2. Specifically, the magnetic circuit component 1 includes a central magnetic circuit 11 and a side magnetic circuit 12. It should be noted that the side magnetic circuit 12 is made of a magnetic conductive material, such as low carbon steel, pure iron, etc. Further, the central magnetic circuit 11 is fixedly arranged at the center position of the side magnetic circuit 12, so that a magnetic gap 13 is formed between the central magnetic circuit 11 and the side magnetic circuit 12. It is easy to understand that the side magnetic circuit 12 surrounds a cavity for accommodating the central magnetic circuit 11 and the vibration component 2. On the other hand, the vibration component 2 includes a first diaphragm 21, a second diaphragm 22 and a voice coil 23. Specifically, the first diaphragm 21 and the second diaphragm 22 are fixedly arranged on the side magnetic circuit 12, the first diaphragm 21 is located above the central magnetic circuit 11, and the second diaphragm 22 is located below the central magnetic circuit 11. Further, the voice coil 23 is suspended in the magnetic gap 13. Figure 4 This is a schematic diagram of the structure of a voice coil provided by an embodiment of the utility model, combined with Figure 4 As shown, the voice coil 23 includes an upper portion 231 and a lower portion 232. It is easy to understand that the upper portion 231 of the voice coil 23 is fixedly connected to the first sound membrane 21, and the lower portion 232 of the voice coil 23 is fixedly connected to the second sound membrane 22. Therefore, when the voice coil 23 reciprocates in the magnetic gap 13, it can drive the first sound membrane 21 and the second sound membrane 22 to move synchronously. It should be noted that the upper portion 231 of the voice coil 23 is wound along the first direction, and the lower portion 232 of the voice coil 23 is wound along the second direction. It is easy to understand that the first direction and the second direction are two opposite winding directions, that is, the first direction is clockwise and the second direction is counterclockwise, or the first direction is counterclockwise and the second direction is clockwise, so as to ensure that the voice coil 23 can stably reciprocate in the magnetic gap 13.

[0048] Figure 5 is an exploded schematic diagram of another loudspeaker provided by an embodiment of the utility model, Figure 6 is a cross-sectional schematic diagram of another loudspeaker provided by an embodiment of the utility model, Figure 7 This is a schematic diagram of the structure of another voice coil provided by the embodiment of the utility model, combined with Figure 6 to Figure 7 As shown, the structure of the voice coil 23 can also be adjusted to meet the requirement of stable movement of the vibration component 2. Specifically, the lower portion 232 of the voice coil 23 can be set as a fixing member, which is a ring-shaped structure and is directly bonded to the upper portion 231 of the voice coil 23, so that the winding direction of the voice coil 23 does not need to be changed. As an optional implementation, the lower portion 232 of the voice coil 23 can also remain unchanged, and the upper portion 231 of the voice coil 23 can be replaced by a fixing member.

[0049] Therefore, the side magnetic circuit 12 not only plays a role in magnetic conduction, but also plays a supporting role for the central magnetic circuit 11 and the vibration component 2. Furthermore, the speaker solves the problem of diaphragm rolling vibration by setting the first diaphragm 21 and the second diaphragm 22 to avoid distortion or noise. At the same time, since the voice coil 23 is at the absolute center of the magnetic circuit, the symmetry and flatness of the BL curve are better. In addition, by setting the first diaphragm 21 and the second diaphragm 22, the speaker can be matched with the whole system design, so that the electronic device can more conveniently achieve the purpose of protecting call privacy.

[0050] In one embodiment, the upper portion 231 corresponding to the voice coil 23 is wound along a first direction, while the lower portion 232 of the voice coil 23 is wound along a second direction, and the number of turns of the upper portion 231 is greater than or equal to the number of turns of the lower portion 232, so that the voice coil 23 can adapt to the magnetic field formed by the magnetic circuit component 1 to perform stable reciprocating motion. It is easy to understand that the number of turns of the upper portion 231 and the lower portion 232 can be adjusted according to actual needs. Exemplarily, the ratio of the number of turns of the upper portion 231 to the lower portion 232 can be set to 5:5, 6:4 or 7:3. In another embodiment, the lower portion 232 corresponding to the voice coil 23 is set as a fixing member, and the height of the fixing member relative to the entire voice coil 23 can be adjusted as needed.

[0051] Figure 8 This is a schematic diagram of the structure of the magnetic circuit component provided by the embodiment of the utility model, combined with Figures 2 to 8 As shown, in one embodiment, the side magnetic circuit 12 includes a first magnetic conductive frame 121 and a second magnetic conductive frame 122. Specifically, the first magnetic conductive frame 121 is arranged around the outside of the central magnetic circuit 11, and has a certain distance from the central magnetic circuit 11 to form a magnetic gap 13. Furthermore, the second magnetic conductive frame 122 is connected to the top of the central magnetic circuit 11 and the first magnetic conductive frame 121, so that the side magnetic circuit 12 can simultaneously realize the magnetic conductive and supporting functions. Figure 3 and Figure 6 As shown, the first sound membrane 21 is arranged between the first magnetic conductive frame 121 and the second magnetic conductive frame 122, and the second sound membrane 22 is arranged at the bottom of the first magnetic conductive frame 121, so that they can move synchronously under the action of the voice coil 23.

[0052] Fig. 9 : is a schematic diagram of the structure of the second magnetic conductive frame provided in the embodiment of the utility model, such as Fig. 9 As shown, in one embodiment, the second magnetic conductive frame 122 includes a central portion 1221, a second edge portion 1222 and a second connecting portion 1223. Figure 3 , Figure 6 and Fig. 9As shown, the center portion 1221 is connected to the top of the center magnetic circuit 11, the second edge portion 1222 is set to a frame shape and is located outside the center portion 1221 and connected to the top of the first magnetic conductive frame 121, and the second connecting portion 1223 connects the center portion 1221 and the second edge portion 1222 respectively. Thus, the second magnetic conductive frame 122 can connect the first magnetic conductive frame 121 and the center magnetic circuit 11 to form a magnetic gap 13. It should be noted that the structure of the second magnetic conductive frame 122 can be adjusted according to the structure of the speaker. Corresponding to the overall rectangular structure of the speaker, the center portion 1221 is set to a rectangular structure, and the second edge portion 1222 is set to a rectangular frame structure. It should be further noted that the number and position of the second connecting portion 1223 can be adjusted as needed. Corresponding to the overall rectangular structure of the speaker, the second connecting portion 1223 is set to four and distributed in a cross shape to ensure the connection strength.

[0053] Combination Figure 3 , Figure 6 and Fig. 9 As shown, in one embodiment, the thickness of the second connection portion 1223 is less than the center portion 1221 and the second edge portion 1222, and the upper surface of the second connection portion 1223 is flush with the upper surface of the center portion 1221 and the second edge portion 1222. Thus, the second magnetic conductive frame 122 located on the top of the speaker can ensure the flatness of the top structure of the speaker, so that the speaker can be set in various electronic devices. At the same time, the bottom of the second magnetic conductive frame 122 can form a concave structure to leave enough movement space for the vibration component 2.

[0054] Fig.10 : is a schematic diagram of the structure of the first magnetic guide frame provided in an embodiment of the utility model, such as Fig.10 As shown, in one embodiment, the first magnetic conductive frame 121 includes a surrounding portion 1211, a first edge portion 1212 and a first connecting portion 1213. Figure 3 , Figure 6 and Fig.10 As shown, the surrounding portion 1211, which is set in a frame shape, is arranged around the outside of the central magnetic circuit 11 and has a certain distance from the central magnetic circuit 11 so as to form a magnetic gap 13. Furthermore, the first edge portion 1212, which is set in a frame shape, is located on the outside of the surrounding portion 1211 and is connected to the second edge portion 1222. It is easy to understand that the shape and size of the first edge portion 1212 match the second edge portion 1222. Furthermore, the first connecting portion 1213 connects the surrounding portion 1211 and the first edge portion 1212. As a result, the side magnetic circuit 12 can cooperate with the central magnetic circuit 11 to form a magnetic gap 13 through the first magnetic conductive frame 121 and the second magnetic conductive frame 122.

[0055] like Figure 8As shown, in one embodiment, the positions of the first connection portion 1213 and the second connection portion 1223 match each other. That is, four first connection portions 1213 are provided, and the four first connection portions 1213 are arranged in a cross shape to correspond one to one with the second connection portions 1223. In this way, the connection strength of the first connection portion 1213 to the surrounding portion 1211 and the first edge portion 1212 can be ensured, and the structural strength of the side magnetic circuit 12, that is, the entire speaker, can be ensured.

[0056] Combination Figures 8 to 10 As shown, in one embodiment, the upper part of the first edge portion 1212 is convex to form a first docking portion 1214, and the upper part of the second edge portion 1222 is concave to form a second docking portion 1224. Thus, the first docking portion 1214 and the second docking portion 1224 can be paired with each other to achieve fixed connection, thereby achieving fixed connection between the first magnetic conductive frame 121 and the second magnetic conductive frame 122. Optionally, the first docking portion 1214 and the second docking portion 1224 are connected by welding. It should be noted that there are two first docking portions 1214, and they are located at the positions of two adjacent corners of the first edge portion 1212, so that the magnetic circuit component 1 can form a suitable magnetic circuit after the first magnetic conductive frame 121 is connected to the second magnetic conductive frame 122. It should be further noted that there are four second docking portions 1224 and they are located at the positions of the four corners of the second edge portion 1222, so that the second magnetic conductive frame 122 is formed into a symmetrical structure, which is conducive to production molding and cost reduction.

[0057] Combination Figure 3 , Figure 6 and Fig.10 As shown, in one embodiment, a mounting portion 1216 is formed on a portion of the first edge portion 1212. It should be noted that two mounting portions 1216 are provided and the entire mounting portion 1216 is a strip-shaped structure, and the two mounting portions 1216 are located on two opposite sides of the first edge portion 1212. Furthermore, a partial area of ​​the first sound membrane 21 is arranged between the mounting portion 1216 and the second magnetic conductive frame 122. In other words, the first magnetic conductive frame 121 cooperates with the second magnetic conductive frame 122 to clamp the first sound membrane 21 through the mounting portion 1216 to prevent the first sound membrane 21 from falling off.

[0058] like Figure 8 As shown, in one embodiment, a wiring port 14 is formed between the first edge portion 1212 and the second edge portion 1222, that is, a wiring port 14 is formed on the side magnetic circuit 12. Specifically, two wiring ports 14 are provided, and are located at two corners opposite to the first docking portion 1214. It is easy to understand that the voice coil 23 can be connected to an external audio circuit through the wiring port 14.

[0059] Combination Figure 4 and Figure 7 As shown, in one embodiment, the voice coil 23 has a lead wire 233, and the lead wire 233 extends through the wiring port 14, so as to achieve connection to an external audio circuit through the wiring port 14. Further, a partial area on the surrounding portion 1211 is recessed to form a leakage groove 1215. It is easy to understand that the leakage groove 1215 can form a avoidance for the lead wire 233, so that the voice coil 23 is connected to the external audio circuit through the lead wire 233. It should be noted that corresponding to the two lead wires 233, there are also two leakage grooves 1215, and the position of the leakage groove 1215 is close to the wiring port 14.

[0060] Combination Figure 3 , Figure 6 and Fig.10 As shown, in one embodiment, the thickness of the surrounding portion 1211 is smaller than that of the first edge portion 1212, and the thickness of the first connecting portion 1213 is smaller than that of the surrounding portion 1211. Thus, the first magnetic conductive frame 121 can avoid the first sound membrane 21 and the second sound membrane 22 to avoid affecting the vibration of the first sound membrane 21 and the second sound membrane 22.

[0061] Combination Figure 3 , Figure 6 and Fig.10 As shown, in one embodiment, the surrounding portion 1211, the first connecting portion 1213 and the first edge portion 1212 form a receiving groove 1217. Further, a damping rubber block 25 is provided in the receiving groove 1217. It should be noted that the damping rubber block 25 is used to fix the lead wire 233, so as to prevent the lead wire 233 from being disturbed when the voice coil 23 vibrates. It should be further noted that, corresponding to the two lead wires 233, two damping rubber blocks 25 are provided.

[0062] Combination Figure 2 and Figure 5 As shown, in one embodiment, the speaker further includes an electrical connection member 3. It should be noted that the electrical connection member 3 is arranged on the side magnetic circuit 12 and is located on the side where the wiring port 14 is located. Optionally, the electrical connection member 3 is set as a circuit board. Further, the lead wire 233 is welded to the electrical connection member 3, so as to realize the electrical connection of the voice coil 23 and the electrical connection member 3, so that the voice coil 23 is connected to the external audio circuit. Furthermore, a protective glue 31 is provided on the electrical connection member 3 to protect the solder joints.

[0063] like Figure 8 As shown, in one embodiment, an air hole 15 is formed between the first edge portion 1212 and the second edge portion 1222. Specifically, two air holes 15 are provided, and are located at the positions of two adjacent sides of the mounting portion 1216. It should be noted that the air hole 15 is connected to the inner cavity of the speaker, so that air can circulate to achieve a spatial heat dissipation function, thereby ensuring the sound quality of the speaker.

[0064] Combination Figures 2 to 3 as well as Figures 5 and 6 As shown, in one embodiment, the central magnetic circuit 11 includes a magnet 111, an upper top sheet 112 and a lower top sheet 113, the magnet 111 is set as a rectangular parallelepiped structure, and the structures of the upper top sheet 112 and the lower top sheet 113 are adapted to the magnet 111. It should be noted that the upper top sheet 112 and the lower top sheet 113 are made of magnetic conductive materials. Further, the upper top sheet 112 is arranged at the top of the magnet 111 and is fixedly connected to the second magnetic conductive frame 122. It is easy to understand that the upper top sheet 112 is fixedly connected to the central part 1221 of the second magnetic conductive frame 122. Optionally, the upper top sheet 112 is connected to the central part 1221 by welding to ensure the connection strength. Optionally, a groove is provided at the top of the central part 1221 for positioning laser welding. Further, the lower top sheet 113 is arranged at the bottom of the magnet 111. Thus, the central magnetic circuit 11 can cooperate with the side magnetic circuit 12 to form a suitable magnetic circuit.

[0065] Fig.11 Schematic diagram of the structure of the top sheet provided by the embodiment of the utility model, such as Fig.11 As shown, in one embodiment, the top sheet 112 includes a main body 1121 and a raised portion 1122. Specifically, the bottom of the main body 1121 is connected to the magnet 111. Further, the top of the main body 1121 is raised upward to form a raised portion 1122, and the raised portion 1122 is used to be fixedly connected to the central portion 1221 of the second magnetic conductive frame 122. Thus, the top sheet 112 can meet the requirements of magnetic conductivity and connection.

[0066] Fig.12 Schematic diagram of the structure of the first sound membrane provided by the embodiment of the utility model, such as Fig.12 As shown, in one embodiment, the first sound membrane 21 includes a first inner ring portion 211, a first folding ring portion 212 and a first outer ring portion 213. Figure 3 , Figure 6 and Fig.12As shown, the first inner ring portion 211 is fixedly connected to the top of the voice coil 23, that is, fixedly connected to the upper portion 231 of the voice coil 23. Further, the first folded ring portion 212 is located on the outside of the first inner ring portion 211 and arches downward. Furthermore, the first outer ring portion 213 is located on the outside of the first folded ring portion 212, and is fixed between the first magnetic conductive frame 121 and the second magnetic conductive frame 122. It is easy to understand that a partial area of ​​the first outer ring portion 213 is clamped between the mounting portion 1216 and the second edge portion 1222 of the second magnetic conductive frame 122. Thereby, the first sound membrane 21 is installed between the first magnetic conductive frame 121 and the second magnetic conductive frame 122. Optionally, the lower surface of the first inner ring portion 211 is connected to the upper portion 231 of the voice coil 23 by gluing, the upper surface of the first outer ring portion 213 is connected to the second edge portion 1222 by gluing, and a partial area of ​​the lower surface of the first outer ring portion 213 is connected to the mounting portion 1216 by gluing.

[0067] Fig.13 Schematic diagram of the structure of the second sound membrane provided by the embodiment of the utility model, such as Fig.13 As shown, in one embodiment, the second sound membrane 22 includes a second inner ring portion 221, a second folding ring portion 222 and a second outer ring portion 223. Figure 3 , Figure 6 and Fig.13 As shown, the second inner ring portion 221 is fixedly connected to the bottom of the voice coil 23, that is, fixedly connected to the lower portion 232 of the voice coil. Further, the second folded ring portion 222 is located on the outer side of the second inner ring portion 221 and arches downward. Further, the second outer ring portion 223 is located on the outer side of the second folded ring portion 222 and is fixed to the bottom of the first magnetic conductive frame 121. Optionally, the upper surface of the second inner ring portion 221 is connected to the lower portion 232 of the voice coil 23 by gluing, and the upper surface of the second outer ring portion 223 is connected to the lower surface of the first edge portion 1212 by gluing. In this way, the installation of the second sound membrane 22 is achieved.

[0068] Combination Figures 2 to 3 as well as Figures 5 and 6 As shown, in one embodiment, the vibration component 2 further includes a middle sticker 26. Specifically, the middle sticker 26 is disposed at the bottom of the second sound membrane 22. More specifically, the middle sticker 26 is connected to the second inner ring portion 221, so as to be disposed at the center position of the second sound membrane 22. It is easy to understand that by providing the middle sticker 26, rigidity can be provided to the second sound membrane 22, thereby ensuring the acoustic performance of the speaker. Optionally, the upper surface of the middle sticker 26 is connected to the lower surface of the second inner ring portion 221 by gluing.

[0069] Combination Figures 2 to 3 as well as Figures 5 and 6As shown, in one embodiment, the vibration component 2 further includes a spring 24. Specifically, the outer edge of the spring 24 is connected to the voice coil 23 through the first sound membrane 21, and the inner edge of the spring 24 is disposed on the central magnetic circuit 11, that is, the inner edge of the spring 24 is disposed on the raised portion 1122 of the upper top sheet 112. It is easy to understand that the spring 24 can provide support for the balance of the vibration component 2, and the spring 24 can also control the compliance of the vibration component 2.

[0070] Fig.14 Schematic diagram of the structure of the elastic wave provided by the embodiment of the utility model. Fig.14 As shown, in one embodiment, the wave damper 24 includes a third inner ring portion 241, a third fold ring portion 242 and a third outer ring portion 243. Figure 3 , Figure 6 and Fig.14 As shown, the third inner ring portion 241 is fixedly connected to the central magnetic circuit 11, that is, fixedly connected to the raised portion 1122 of the upper top plate 112. Further, the third folded ring portion 242 is located outside the third inner ring portion 241 and arches upward. Furthermore, the third outer ring portion 243 is located outside the third folded ring portion 242, and is connected to the voice coil 23 through the first sound membrane 21. Optionally, the lower surface of the third inner ring portion 241 is connected to the upper surface of the raised portion 1122 by gluing, and the lower surface of the third outer ring portion 243 is connected to the upper surface of the first inner ring portion 211 by gluing. In other words, the first sound membrane 21 and the elastic wave 24 are synchronously connected to the voice coil 23.

[0071] Combination Figures 2 to 3 as well as Figures 5 and 6 As shown, in one embodiment, the vibration component 2 includes a reinforcing piece 27. Specifically, the reinforcing piece 27 is arranged in a ring shape and is arranged on the third outer ring portion 243. It is easy to understand that by arranging the reinforcing piece 27, the connection strength between the elastic wave 24 and the first sound membrane 21 and the voice coil 23 can be improved. Optionally, the reinforcing piece 27 is connected to the upper surface of the third outer ring portion 243 by gluing.

[0072] The embodiment of the utility model also provides an electronic device, which can be a mobile phone, a tablet computer, a smart watch, etc., without limitation. The electronic device is provided with a speaker as described above, so as to improve the sound quality and protect the privacy of the call, thereby improving the user experience.

[0073] The utility model provides a loudspeaker and an electronic device, wherein the loudspeaker comprises a magnetic circuit component, a vibration component and an electrical connection member, wherein the magnetic circuit component comprises a central magnetic circuit and a side magnetic circuit for forming a magnetic gap, wherein the vibration component comprises a voice coil suspended in the magnetic gap and a first sound membrane and a second sound membrane fixed on the side magnetic circuit, wherein the first sound membrane is located above the central magnetic circuit and the second sound membrane is located below the central magnetic circuit, wherein the voice coil comprises an upper portion and a lower portion, wherein the upper portion is connected to the first sound membrane and is wound along a first direction, and the lower portion is connected to the second sound membrane and is wound along a second direction or is set as a fixed member, and the electrical connection member is set on the side magnetic circuit and is electrically connected to the voice coil. Thus, the loudspeaker solves the problem of rolling vibration of the sound membrane, and at the same time, since the voice coil is located at the absolute center of the magnetic circuit, the symmetry and flatness of the BL curve are better, and it helps the electronic device to achieve the purpose of protecting the privacy of calls.

[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A loudspeaker, characterized in that: The speaker comprises: A magnetic circuit component (1), the magnetic circuit component (1) comprising a central magnetic circuit (11) and a side magnetic circuit (12), the side magnetic circuit (12) surrounding a cavity, the central magnetic circuit (11) being welded to the side magnetic circuit (12) and located in the cavity, a magnetic gap (13) being formed between the central magnetic circuit (11) and the side magnetic circuit (12); A vibration component (2), the vibration component (2) comprising a first sound diaphragm (21), a second sound diaphragm (22) and a voice coil (23), the first sound diaphragm (21) and the second sound diaphragm (22) being fixedly arranged on the side magnetic circuit (12), the first sound diaphragm (21) being located above the central magnetic circuit (11), the second sound diaphragm (22) being located below the central magnetic circuit (11), the voice coil (23) being suspended in the magnetic gap (13), the voice coil (23) comprising an upper portion (231) and a lower portion (232), the upper portion (231) being fixedly connected to the first sound diaphragm (21), the lower portion (232) being fixedly connected to the second sound diaphragm (22), the upper portion (231) being wound along a first direction, the lower portion (232) being wound along a second direction or being arranged as a fixed member; and An electrical connection component (3) is arranged on the side magnetic circuit (12) and is electrically connected to the voice coil (23).

2. The loudspeaker according to claim 1, characterized in that The upper part (231) is wound along a first direction, and the lower part (232) is wound along a second direction, and the number of turns of the upper part (231) is greater than or equal to the number of turns of the lower part (232).

3. The loudspeaker according to claim 1, characterized in that The side magnetic circuit (12) comprises: A first magnetic conductive frame (121), the first magnetic conductive frame (121) being disposed around the outside of the central magnetic circuit (11); and A second magnetic conductive frame (122), wherein the second magnetic conductive frame (122) is connected to the central magnetic circuit (11) and the top of the first magnetic conductive frame (121).

4. The loudspeaker according to claim 3, characterized in that The first sound membrane (21) is arranged between the first magnetic conductive frame (121) and the second magnetic conductive frame (122); The second sound membrane (22) is arranged at the bottom of the first magnetic conductive frame (121).

5. The loudspeaker according to claim 3, characterized in that The second magnetic conductive frame (122) comprises: A central portion (1221), the central portion (1221) being connected to the top of the central magnetic circuit (11); A second edge portion (1222), the second edge portion (1222) is located outside the central portion (1221) and connected to the top of the first magnetic conductive frame (121); and A second connecting portion (1223), wherein the second connecting portion (1223) connects the central portion (1221) and the second edge portion (1222).

6. The loudspeaker according to claim 5, characterized in that The thickness of the second connection portion (1223) is smaller than that of the central portion (1221) and the second edge portion (1222), and the upper surface of the second connection portion (1223) is flush with the upper surfaces of the central portion (1221) and the second edge portion (1222).

7. The loudspeaker according to claim 5, characterized in that The first magnetic conductive frame (121) comprises: A surrounding portion (1211), the surrounding portion (1211) being arranged surroundingly on the outside of the central magnetic circuit (11); a first edge portion (1212), the first edge portion (1212) being located outside the surrounding portion (1211) and connected to the second edge portion (1222); and A first connecting portion (1213), wherein the first connecting portion (1213) connects the surrounding portion (1211) and the first edge portion (1212).

8. The loudspeaker according to claim 7, characterized in that The upper portion of the first edge portion (1212) is raised to form a first docking portion (1214); The upper portion of the second edge portion (1222) is recessed to form a second docking portion (1224), and the second docking portion (1224) is fixedly connected to the first docking portion (1214).

9. The loudspeaker according to claim 7, characterized in that The positions of the first connecting portion (1213) and the second connecting portion (1223) match each other.

10. The loudspeaker according to claim 7, characterized in that The upper portion of the surrounding portion (1211) is recessed to form a leakage groove (1215).

11. The loudspeaker according to claim 7, characterized in that The upper portion of the first edge portion (1212) is raised to form a mounting portion (1216); A partial area of ​​the first sound membrane (21) is arranged between the mounting portion (1216) and the second magnetic conductive frame (122).

12. The loudspeaker according to claim 7, characterized in that The surrounding portion (1211) has a thickness smaller than that of the first edge portion (1212); The thickness of the first connecting portion (1213) is smaller than that of the surrounding portion (1211).

13. The loudspeaker according to claim 7, characterized in that A ventilation hole (15) is formed between the first edge portion (1212) and the second edge portion (1222).

14. The loudspeaker according to claim 3, characterized in that The central magnetic circuit (11) comprises: A magnet (111); An upper top sheet (112), the upper top sheet (112) being arranged on the top of the magnet (111) and fixedly connected to the second magnetic conductive frame (122); and A lower top sheet (113), wherein the lower top sheet (113) is arranged at the bottom of the magnet (111).

15. The loudspeaker according to claim 14, characterized in that The upper top sheet (112) comprises: a main body (1121), the main body (1121) being connected to the magnet (111); and A raised portion (1122), wherein the raised portion (1122) protrudes upward from the top of the main body (1121) and is fixedly connected to the second magnetic conductive frame (122).

16. The loudspeaker according to claim 4, characterized in that The first sound membrane (21) comprises: A first inner ring portion (211), wherein the first inner ring portion (211) is fixedly connected to the top of the voice coil (23); a first folding ring portion (212), the first folding ring portion (212) being located outside the first inner ring portion (211) and arching downward; and A first outer ring portion (213), the first outer ring portion (213) is located outside the first folded ring portion (212) and is fixed between the first magnetic conductive frame (121) and the second magnetic conductive frame (122).

17. The loudspeaker according to claim 4, characterized in that The second sound membrane (22) comprises: A second inner ring portion (221), the second inner ring portion (221) being fixedly connected to the bottom of the voice coil (23); A second folded ring portion (222), the second folded ring portion (222) is located outside the second inner ring portion (221) and arches upward; and A second outer ring portion (223), the second outer ring portion (223) is located outside the second folded ring portion (222) and is fixed to the bottom of the first magnetic conductive frame (121).

18. The loudspeaker according to claim 4, characterized in that The vibration component (2) also includes: A spring wave (24), wherein the outer edge of the spring wave (24) is connected to the voice coil (23) via the first sound membrane (21), and the inner edge of the spring wave (24) is arranged on the central magnetic circuit (11).

19. The loudspeaker according to claim 18, characterized in that The elastic wave (24) comprises: A third inner ring portion (241), the third inner ring portion (241) being fixedly connected to the central magnetic circuit (11); A third folding ring portion (242), the third folding ring portion (242) being located outside the third inner ring portion (241) and arching upward; and A third outer ring portion (243), the third outer ring portion (243) is located outside the third folded ring portion (242) and is connected to the voice coil (23) through the first sound membrane (21).

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