Dynamic Speaker

Abstract

The present invention discloses a dynamic loudspeaker, including a magnetic assembly and a sound film assembly, wherein the magnetic assembly is provided with an annular gap, the magnetic assembly is used to cooperate to form a magnetic field, the sound film assembly includes a vibrating diaphragm and a voice coil, one end of the voice coil extends into the annular gap, the other end of the voice coil is arranged in contact with the vibrating diaphragm, and the lead-in end line and / or the lead-out end line of the voice coil are arranged to pass through the annular gap in a direction away from the vibrating diaphragm. Compared with the traditional method of bonding the lead-in end line and the lead-out end line to the vibrating diaphragm, the vibration load of the lead-in end line, the lead-out end line and the glue used for bonding on the vibrating diaphragm is reduced, so that the vibration of the vibrating diaphragm is more inclined to an ideal vibration state, the discrete type of the sound quality is small, and at the same time, there will be no situation where the glue is unevenly distributed on the vibrating diaphragm, resulting in unbalanced vibration and shaking of the vibrating diaphragm. The sound quality has the advantages of high fidelity, high power, fast transient response, high frequency bandwidth response, and more stability, so the above dynamic loudspeaker has better performance and sound quality.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and in particular to a dynamic loudspeaker. Background Art

[0002] With the progress of social development and the improvement of people's quality of life, consumers have higher and higher requirements for sound quality. Compared with the terminal speakers of many wearable devices, miniaturization, low distortion, high sensitivity, wide bandwidth, high sound quality and high efficiency are the research directions of many manufacturers, and have always been the bottlenecks that micro speakers need to break through. The assembly process of the speaker has a great impact on the sound quality, and the current speakers have defects in the connection method of the wires, which will affect the sound quality. Summary of the invention

[0003] Based on this, the present invention aims to overcome the defects of the prior art and provide a dynamic loudspeaker with better sound quality.

[0004] The technical solution is as follows:

[0005] A dynamic loudspeaker, comprising:

[0006] A magnetic assembly, wherein the magnetic assembly is provided with an annular gap, and the magnetic assembly is used to cooperate to form a magnetic field; and

[0007] A sound membrane assembly, the sound membrane assembly includes a vibrating diaphragm and a voice coil, one end of the voice coil extends into the annular gap, the other end of the voice coil is arranged in contact with the vibrating diaphragm, and the lead-in end line and / or the lead-out end line of the voice coil passes through the annular gap in a direction away from the vibrating diaphragm.

[0008] In the above-mentioned dynamic loudspeaker, the magnetic components can cooperate to form a magnetic field, and the voice coil can be electrically connected to an external circuit using an incoming end wire and an outgoing end wire, so that an audio current passes through the voice coil, and the voice coil can generate an induced magnetic field that changes with the audio current. The induced magnetic field generated by the voice coil can interact with the magnetic field formed by the cooperation of the magnetic components, so that the voice coil vibrates along its axial direction, thereby driving the vibrating diaphragm to vibrate and produce sound. Since the incoming end wire and / or the outgoing end wire pass through an annular gap in a direction away from the vibrating diaphragm, the incoming end wire and / or the outgoing end wire will not contact the vibrating diaphragm. Compared with the traditional method of bonding the incoming end wire and the outgoing end wire to the vibrating diaphragm, the vibration load of the incoming end wire, the outgoing end wire and the glue used for bonding on the vibrating diaphragm is reduced, so that the vibration of the vibrating diaphragm is closer to an ideal vibration state, the discreteness of the sound quality is small, and at the same time, the glue will not be unevenly distributed on the vibrating diaphragm, resulting in unbalanced vibration and shaking of the vibrating diaphragm. The sound quality has the advantages of high fidelity, high power, fast instantaneous response, high frequency bandwidth response, and more stability. Therefore, the above-mentioned dynamic loudspeaker has better sound quality. In addition, at this time, the lead-in wires and the lead-out wires are routed inside the dynamic speaker, which can reduce the exposed length of the lead-in wires and the lead-out wires, is beneficial to protecting the lead-in wires and the lead-out wires, and improves overall reliability.

[0009] In one embodiment, the magnetic assembly includes a magnet, a first support and a second support, the first support and the second support are both made of magnetic materials, the second support is arranged outside the first support, the annular gap is formed between the second support and the first support, and the second support and the first support are used to cooperate with the magnet to form the magnetic field.

[0010] In one embodiment, the first support includes a connected guide column and a base, the magnet and the second support are both mounted outside the guide column, the magnet is mounted on the base, a clearance gap is provided between the magnet and the base, the clearance gap is connected to the annular gap, and the lead-in end line and the lead-out end line are passed through the annular gap and the clearance gap in sequence.

[0011] In one embodiment, the position where the lead-in end line leaves the voice coil is the first departure point, and the position where the lead-out end line leaves the voice coil is the second departure point. The first departure point and the second departure point are located on the side of the voice coil close to the clearance gap, and the angle between the first departure point and the second departure point is a, 0° <a<180°。

[0012] In one embodiment, a fixing portion is provided on the base or the magnet, the lead-in end wire and the lead-out end wire are both fixed at the fixing portion, the fixing portion is located in the clearance gap, the side of the magnet away from the second support is the first surface, the surface of the magnet opposite to the guide column is the second surface, and the fixing portion is arranged at a position where the first surface is away from the second surface.

[0013] In one embodiment, the straight-line distance between the first departure point and the fixed part is L1, the line length of the lead-in end line between the first departure point and the fixed part is L2, 0.2mm≦L2-L1≦0.8mm, and the line length of the lead-out end line between the second departure point and the fixed part is L3, 0.2mm≦L3-L1≦0.8mm.

[0014] In one of the embodiments, a central hole penetrating the guide column and the base is provided on the first support, a sound quality adjustment plate is provided in the central hole, and a sound quality adjustment hole is provided on the sound quality adjustment plate.

[0015] In one of the embodiments, a balance adjustment hole is provided on the base, the balance adjustment hole is communicated with the annular gap, and the lead-in end wire and the lead-out end wire pass through the clearance gap on both sides of the balance adjustment hole.

[0016] In one of the embodiments, a notch is provided on the base, a step portion is provided in the notch, the step portion and the magnet are spaced apart and cooperated to form the clearance gap, and the balance adjustment hole is provided on the step portion.

[0017] In one embodiment, a mounting groove is provided on the second support, the magnet and the first support are arranged in the mounting groove, the annular gap is formed between the first support and the inner wall of the mounting groove, a wiring hole is provided on the inner wall of the mounting groove, and the lead-in end wire and / or the lead-out end wire pass through the annular gap and the wiring hole in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1is a cross-sectional view of a dynamic speaker according to one embodiment of the present invention;

[0021] Figure 2 A cross-sectional view of a dynamic speaker according to another embodiment of the present invention;

[0022] Figure 3 for Figure 1 Schematic diagram of the assembly of the first support and the voice coil;

[0023] Figure 4 A schematic diagram of the structure of a voice coil according to an embodiment of the present invention;

[0024] Figure 5 for Figure 1 Schematic diagram of the assembly of the central magnet and voice coil.

[0025] Description of reference numerals:

[0026] 100. Magnetic assembly, 101. Annular gap, 102. Clearance gap, 110. Magnet, 111. First surface, 112. Second surface, 120. First support, 120a. Center hole, 121. Guide column, 122. Base, 122a. Balance adjustment hole, 122b. Notch, 122c. Step portion, 123. Sound quality adjustment sheet, 123a. Sound quality adjustment hole, 130. Second support, 131. Wiring hole, 140. Fixing portion, 200. Sound membrane assembly, 210. Vibrating diaphragm, 220. Voice coil, 221. Lead-in terminal wire, 222. Lead-out terminal wire, 223. First departure point, 224. Second departure point, 225. Second reference plane, 300. Terminal block, 301. Process hole, 400. Limiting ring, 500. Housing. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] like Figures 1 to 3As shown, an embodiment discloses a dynamic loudspeaker, including a magnetic component 100 and a sound membrane component 200, the magnetic component 100 is provided with an annular gap 101, the magnetic component 100 is used to cooperate to form a magnetic field, the sound membrane component 200 includes a vibration diaphragm 210 and a voice coil 220, one end of the voice coil 220 extends into the annular gap 101, and the other end of the voice coil 220 is arranged in contact with the vibration diaphragm 210, and the lead-in end line 221 and / or the lead-out end line 222 of the voice coil 220 passes through the annular gap 101 in a direction away from the vibration diaphragm 210.

[0029] In the above-mentioned dynamic speaker, the magnetic assembly 100 can cooperate to form a magnetic field, and the voice coil 220 can be electrically connected to an external circuit by using the lead-in end line 221 and the lead-out end line 222, so that an audio current passes through the voice coil 220, and the voice coil 220 can generate an induced magnetic field that changes with the audio current. The induced magnetic field generated by the voice coil 220 can interact with the magnetic field formed by the magnetic assembly 100, so that the voice coil 220 vibrates along its axial direction, thereby driving the vibration diaphragm 210 to vibrate and produce sound. Since the lead-in end line 221 and / or the lead-out end line 222 pass through the annular gap 101 in a direction away from the vibration diaphragm 210, the lead-in end line 221 and / or the lead-out end line 222 can pass through the annular gap 101 in a direction away from the vibration diaphragm 210. 2 will not contact the vibrating diaphragm 210. Compared with the traditional method of bonding the lead-in terminal 221 and the lead-out terminal 222 to the vibrating diaphragm 210, the vibration load of the lead-in terminal 221, the lead-out terminal 222 and the glue used for bonding on the vibrating diaphragm 210 is reduced, so that the vibration of the vibrating diaphragm 210 is more inclined to an ideal vibration state, the discreteness of the sound quality is small, and at the same time, the glue will not be unevenly distributed on the vibrating diaphragm 210, resulting in unbalanced vibration and shaking of the vibrating diaphragm 210. The sound quality has the advantages of high fidelity, high power, fast instantaneous response, high frequency bandwidth response, and more stability. Therefore, the above-mentioned dynamic speaker has better sound quality. In addition, at this time, the lead-in terminal 221 and the lead-out terminal 222 are routed inside the dynamic speaker, which can reduce the exposed length of the lead-in terminal 221 and the lead-out terminal 222, which is conducive to protecting the lead-in terminal 221 and the lead-out terminal 222 and improving the overall reliability.

[0030] Alternatively, if Figure 3As shown, the voice coil 220 is a cylindrical structure formed by winding a metal wire. The winding method of the metal wire can make the lead-in end wire 221 and the lead-out end wire 222 leave the voice coil 220 from the same position in the axial direction of the voice coil 220 at the same time, for example, the lead-in end wire 221 and the lead-out end wire 222 leave the voice coil 220 from the upper end of the voice coil 220 and enter the annular gap 101 at the same time; or the lead-in end wire 221 and the lead-out end wire 222 leave the voice coil 220 from different positions in the axial direction of the voice coil 220 and enter the annular gap 101, for example, one of the lead-in end wire 221 and the lead-out end wire 222 leaves the voice coil 220 from the upper end position of the voice coil 220, and the other leaves the voice coil 220 from the lower end position of the voice coil 220, wherein the upper end and the lower end of the voice coil 220 are the two ends of the voice coil 220 in its axial direction.

[0031] Specifically, the voice coil 220 is bonded to the vibrating diaphragm 210 by adhesive or the like, and the lead-in end wire 221 and the lead-out end wire 222 leave the voice coil 220 near the bonding point. At this time, the direction in which the lead-in end wire 221 and the lead-out end wire 222 leave the voice coil 220 can be limited, so that the lead-in end wire 221 and the lead-out end wire 222 can be routed in the annular gap 101 in a desired manner, so as to improve the performance of the above-mentioned dynamic speaker.

[0032] Optionally, the introduction end wire 221 and the lead-out end wire 222 enter the annular gap 101 at the same time and do not contact the vibrating diaphragm 210, which minimizes the burden on the vibrating diaphragm 210. However, when the introduction end wire 221 or the lead-out end wire 222 passes through the annular gap 101 and does not contact the vibrating diaphragm 210, it can also reduce the burden on the vibrating diaphragm 210 and play a certain role in improving the sound quality.

[0033] In one embodiment, if Figure 1 As shown, the magnetic assembly 100 includes a magnet 110, a first support 120 and a second support 130. The first support 120 and the second support 130 are both made of magnetic materials. The second support 130 is sleeved outside the first support 120. An annular gap 101 is formed between the second support 130 and the first support 120. The second support 130 and the first support 120 are used to cooperate with the magnet 110 to form a magnetic field. Since the first support 120 and the second support 130 are both made of magnetic materials, they can be magnetized to form a corresponding magnetized magnetic field under the action of the self-magnetic field of the magnet 110, and cooperate with the self-magnetic field of the magnet 110, so that the first support 120, the second support 130 and the magnet 110 cooperate to form a magnetic field. At this time, the magnetic lines of force of the magnetic field are more regular and more concentrated, and will not be dispersed, so that they can better interact with the voice coil 220 and improve the performance of the speaker.

[0034] In other embodiments, the magnetic assembly 100 includes a magnetic base and a magnet 110. The magnet 110 is sleeved outside the magnetic base and spaced apart from the magnetic base. The magnet 110 and the magnetic base cooperate to form the above-mentioned annular gap 101, and can also cooperate with the sound membrane assembly 200 to produce sound.

[0035] In one embodiment, if Figure 1 and Figure 3 As shown, the first support 120 includes a connected guide column 121 and a base 122, the magnet 110 and the second support 130 are both mounted outside the guide column 121, the magnet 110 is mounted on the base 122, and a clearance gap 102 is provided between the magnet 110 and the base 122, the clearance gap 102 is connected to the annular gap 101, and the lead-in end line 221 and the lead-out end line 222 pass through the annular gap 101 and the clearance gap 102 in sequence. In the above structure, the dynamic speaker can be combined to form an external magnetic speaker, the magnet 110 is mounted on the base 122, and the magnet 110 and the second support 130 are both mounted outside the guide column 121, so that the overall structure is more stable and can form a more concentrated magnetic field. Since the lead-in end line 221 and the lead-out end line 222 both pass through the annular gap 101 and are led out from the clearance gap 102, it is ensured that the lead-in end line 221 and the lead-out end line 222 will not be connected to the vibration diaphragm 210 during the process of electrical connection with the external circuit, thereby reducing the load on the vibration diaphragm 210, making the mass distribution of the vibration diaphragm 210 more uniform, responding faster during the vibration process, and tending to an ideal vibration state, thereby improving the performance of the dynamic speaker, and the lead-in end line 221 and the lead-out end line 222 will not be pinched by the magnet 110 and the first support 120, thereby protecting the lead-in end line 221 and the lead-out end line 222. In addition, since the lead-in end line 221 and the lead-out end line 222 pass between the magnet 110 and the first support 120 at this time, the lead-in end line 221 and the lead-out end line 222 do not directly pass through the magnet 110 or the first support 120, the mutual influence between the lead-in end line 221, the lead-out end line 222 and the magnet 110 and the first support 120 is small, and the interference can also be reduced, so that the dynamic speaker has a high-fidelity effect.

[0036] Optionally, the number of the clearance gaps 102 may be one or two. When there is one clearance gap 102 , the lead-in end line 221 and the lead-out end line 222 are led out from the same clearance gap 102 ; when there are two clearance gaps 102 , the lead-in end line 221 and the lead-out end line 222 are led out from two clearance gaps 102 respectively.

[0037] Specifically, the number of the clearance gap 102 is one. At this time, since the first support 120 and / or the magnet 110 need to be processed to form a concave structure in order to form the clearance gap 102, when the clearance gap 102 is one, the processing of the first support 120 and / or the magnet 110 is simpler, which can effectively reduce the overall cost of the above-mentioned dynamic speaker.

[0038] In other embodiments, a perforation is provided on the base 122 or the magnet 110, and the perforation communicates with the annular gap 101. Both the lead-in wire 221 and the lead-out wire 222 pass through the perforation, and at this time, the lead-in wire 221 and the lead-out wire 222 will not affect the vibration effect of the diaphragm 210 either.

[0039] In one embodiment, as Figure 3 and Figure 4 shown, the position where the lead-in wire 221 leaves the voice coil 220 is the first departure point 223, and the position where the lead-out wire 222 leaves the voice coil 220 is the second departure point 224. The first departure point 223 and the second departure point 224 are located on the side of the voice coil 220 close to the relief gap 102. The angle between the first departure point 223 and the second departure point 224 is a, and 0° < a < 180°. By setting the first departure point 223 and the second departure point 224 on the side of the voice coil 220 close to the relief gap 102, and the angle between the first departure point 223 and the second departure point 224 is less than 180° and greater than 0°, it is prevented that the lead-in wire 221 and the lead-out wire 222 re-contact the voice coil 220 after leaving the voice coil 220, preventing the displacement of the voice coil 220 from being affected. At the same time, at this time, the lengths of the lead-in wire 221 and the lead-out wire 222 are shorter, and the burden on the voice coil 220 can also be reduced.

[0040] Specifically, as Figure 3 and Figure 4 shown, any point in the relief gap 102 and the central axis of the voice coil 220 can form a first reference plane, and another plane passing through the central axis of the voice coil 220 and perpendicular to the first reference plane is the second reference plane 225. Both the first departure point 223 and the second departure point 224 are located on the side of the second reference plane 225 close to the relief gap 102.

[0041] Optionally, the positions of the first departure point 223 and the second departure point 224 can be adjusted; or the shapes of the lead-in wire 221 and the lead-out wire 222 in the annular gap 101 can be adjusted to adjust the sound quality.

[0042] In one embodiment, as Figure 5 shown, a fixing portion 140 is provided on the base 122 or the magnet 110. Both the lead-in wire 221 and the lead-out wire 222 are fixed at the fixing portion 140, and the fixing portion 140 is located in the relief gap 102. Through the fixing portion 140, the lead-in wire 221 and the lead-out wire 222 can be limited, and the lead-in wire 221 and the lead-out wire 222 can be sorted out, so that the routing of the lead-in wire 221 and the lead-out wire 222 can be set in a predetermined manner, preventing the lead-in wire 221 and the lead-out wire 222 from affecting the normal operation of other components during the process of passing through the annular gap 101 and the relief gap 102.

[0043] Optionally, the fixing portion 140 is disposed on the magnet 110 . Since the vibration diaphragm 210 , the voice coil 220 , the second support 130 and the magnet 110 are pre-connected together during assembly, disposing the fixing portion 140 on the magnet 110 makes overall assembly more convenient.

[0044] Optionally, the fixing part 140 is a glue spot formed by glue drops on the magnet 110, and the lead-in end line 221 and the lead-out end line 222 are both passed through the glue spot and fixed by the glue spot; or the fixing part 140 is a plastic part with a channel, and the lead-in end line 221 and the lead-out end line 222 are both passed through the channel and fixed by the plastic part.

[0045] In one embodiment, if Figure 5 As shown, the side of the magnet 110 away from the second support 130 is the first surface 111, the surface of the magnet 110 facing the guide pillar 121 is the second surface 112, and the fixing portion 140 is disposed at a position where the first surface 111 is away from the second surface 112. In the above structure, when the lead-in end wire 221 and the lead-out end wire 222 pass through the annular gap 101 and enter the clearance gap 102, they will first be limited by the fixing portion 140, and the position of the fixing portion 140 is close to the position where the lead-in end wire 221 and the lead-out end wire 222 just enter the clearance gap 102, so that the lead-in end wire 221 and the lead-out end wire 222 will not swing arbitrarily in the annular gap 101 and the clearance gap 102, and the lead-in end wire 221 and the lead-out end wire 222 will not affect the performance of the speaker.

[0046] In one embodiment, the straight-line distance between the first departure point 223 and the fixed portion 140 is L1, the line length of the lead-in end line 221 between the first departure point 223 and the fixed portion 140 is L2, 0.2mm≦L2-L1≦0.8mm, and the line length of the lead-out end line 222 between the second departure point 224 and the fixed portion 140 is L3, 0.2mm≦L3-L1≦0.8mm. At this time, the lead-in end line 221 and the lead-out end line 222 are in a bent and relaxed state between the first departure point 223 and the fixing portion 140, and the lead-in end line 221 and the lead-out end line 222 will not exert force on the first departure point 223 and the second departure point 224 of the voice coil 220 to cause burden, and will not cause abnormal movement of the voice coil 220, thereby improving the overall performance of the above-mentioned dynamic speaker. At the same time, when the lead-in end line 221 and the lead-out end line 222 are within the above-mentioned length range, the burden on the voice coil 220 can be reduced, and at the same time, they will not be too long to prevent contact or accidental collision with other components.

[0047] In one embodiment, if Figure 1As shown, the first support 120 is provided with a central hole 120a penetrating the guide column 121 and the base 122, and a sound quality adjustment sheet 123 is provided in the central hole 120a, and a sound quality adjustment hole 123a is provided on the sound quality adjustment sheet 123. The sound quality can be adjusted by the sound quality adjustment hole 123a to have better performance.

[0048] Optionally, the thickness of the sound quality adjustment sheet 123 is 0.03 mm to 0.5 mm, which can reduce the impact on the sound quality and cooperate with the sound quality adjustment hole 123a to adjust the sound quality.

[0049] Optionally, the number of the sound quality adjustment holes 123a is one or more.

[0050] Specifically, at least one of the sound quality adjustment holes 123 a is located at the center of the sound quality adjustment plate 123 .

[0051] Optionally, the cross-sectional area of ​​the sound quality adjustment hole 123a is 0.008 mm2 to 0.283 mm2. That is, no matter how many sound quality adjustment holes 123a are opened on the sound quality adjustment sheet 123, the total opening area on the sound quality adjustment sheet 123 is 0.008 mm2 to 0.283 mm2.

[0052] In one embodiment, if Figure 1 and Figure 3 As shown, the base 122 is provided with a balance adjustment hole 122a, which is connected to the annular gap 101, and the lead-in end wire 221 and the lead-out end wire 222 pass through the clearance gap 102 on both sides of the balance adjustment hole 122a. The balance adjustment hole 122a in the above structure can balance the influence of the lead-in end wire 221 and the lead-out end wire 222 on the vibration of the voice coil 220, and can offset the small vibration of the lead-in end wire 221 and the lead-out end wire 222 in the annular gap 101. At the same time, when the sound quality adjustment hole 123a is not enough to adjust the sound quality, the balance adjustment hole 122a for vibration is provided to prevent the split vibration of the center ball top and the annular part of the vibrating diaphragm 210.

[0053] Specifically, Figure 3 As shown, the lead-in terminal 221 and the lead-out terminal 222 are symmetrical with the balance adjustment hole 122a as the origin. At this time, the influence of the lead-in terminal 221 and the lead-out terminal 222 on the voice coil 220 is more regular, and can be easily offset by the balance adjustment hole 122a. Since the lead-in terminal 221 is fixed at the first departure point 223 and the fixing part 140, respectively, and the lead-out terminal 222 is fixed at the second departure point 224 and the fixing part 140, respectively, the posture of the lead-in terminal 221 and the lead-out terminal 222 in the replacement gap is also a fixed posture, for example, arranged in an arc form.

[0054] In one embodiment, if Figure 3As shown, a notch 122b is provided on the base 122, and a step portion 122c is provided in the notch 122b. The step portion 122c is arranged at intervals with the magnet 110 to form a clearance gap 102, and the balance adjustment hole 122a is provided on the step portion 122c. The step portion 122c can cooperate with the magnet 110 to guide the routing of the lead-in terminal wire 221 and the lead-out terminal wire 222 without pinching the lead-in terminal wire 221 and the lead-out terminal wire 222. At the same time, the balance adjustment hole 122a is provided on the step portion 122c to better cooperate with the lead-in terminal wire 221 and the lead-out terminal wire 222, reduce the burden of the voice coil 220, and offset the influence caused by the small vibration of the lead-in terminal wire 221 and the lead-out terminal wire 222.

[0055] Specifically, the base 122 and the step portion 122c are both fan-shaped, and the base 122 and the step portion 122c are coaxially arranged, wherein the thickness of the step portion 122c is smaller than the thickness of the base 122 , and the outer diameter of the step portion 122c is smaller than the outer diameter of the base 122 .

[0056] Alternatively, if Figure 1 As shown, the dynamic speaker further includes a wiring board 300, which is arranged on a side of the base 122 away from the guide column 121, and the lead-in terminal line 221 and the lead-out terminal line 222 are used to be electrically connected to the wiring board 300. The wiring board 300 is provided with a process hole 301 corresponding to the balance adjustment hole 122a, and the process hole 301 is connected to the balance adjustment hole 122a. The position of the wiring board 300 is reasonably arranged, which can improve the compactness of the overall structure and reduce space occupation. At the same time, the process hole 301 on the wiring board 300 will not affect the balance adjustment hole 122a to offset the vibration of the lead-in terminal line 221 and the lead-out terminal line 222.

[0057] Specifically, Figure 1 As shown, the opening of the center hole 120a at one end of the base 122 is a trumpet-shaped opening, and the sound quality adjustment sheet 123 is arranged at the trumpet-shaped opening and is limited by the wiring board 300. The wiring board 300 is provided with a through hole corresponding to the center hole 120a, and the through hole is connected to the center hole 120a, and does not block the inflow and outflow of air, so that the sound quality adjustment sheet 123 in the center hole 120a can play a role in adjusting the sound quality.

[0058] Optionally, the clearance gap 102 may be filled with adhesive or the like to seal the annular gap 101 and improve the reliability of the overall structure.

[0059] In another embodiment, Figure 2As shown, the second support 130 is provided with a mounting groove, the magnet 110 and the first support 120 are arranged in the mounting groove, an annular gap 101 is formed between the first support 120 and the inner wall of the mounting groove, a wiring hole 131 is provided on the inner wall of the mounting groove, and the lead-in end wire 221 and / or the lead-out end wire 222 pass through the annular gap 101 and the wiring hole 131 in sequence. At this time, the dynamic speaker can cooperate to form an internal magnetic speaker. Since the lead-in end wire 221 and / or the lead-out end wire 222 pass through the annular gap 101 and pass through the wiring hole 131 on the inner wall of the mounting groove, the lead-in end wire 221 and / or the lead-out end wire 222 will not contact the vibration diaphragm 210, and will not cause a burden on the vibration of the vibration diaphragm 210. There is no need to set glue on the vibration diaphragm 210 to connect the lead-in end wire 221 and / or the lead-out end wire 222, so the mass distribution on the vibration diaphragm 210 is more balanced, which is conducive to improving the concentration of the sound emitted.

[0060] Alternatively, if Figure 1 and Figure 2 As shown, the sound membrane assembly 200 also includes a limiting ring 400, which is sleeved outside the voice coil 220, and the limiting ring 400 and the voice coil 220 are spaced apart, one side of the limiting ring 400 is connected to the outer edge of the vibration diaphragm 210, and the other side of the limiting ring 400 is connected to the second support 130, and the middle part of the vibration diaphragm 210 is connected to the voice coil 220. The limiting ring 400 is used to position the vibration diaphragm 210, which facilitates the installation and alignment of the vibration diaphragm 210 and the voice coil 220, and ensures that there is a gap between the vibration diaphragm 210 and the outer support, so that the vibration diaphragm 210 will not contact the outer support during the vibration process.

[0061] Optionally, the shape of the limiting ring 400 may be circular, square or other shapes.

[0062] Alternatively, if Figure 1 As shown, the dynamic speaker further includes a housing 500, and the housing 500 is disposed outside the vibration diaphragm 210. The housing 500 can support and protect the internal structure of the dynamic speaker.

[0063] Specifically, the inner diameter of the voice coil 220 is in the range of 1.5 mm to 7 mm. The length of the lead-in end line 221 from the first departure point 223 to the fixed portion 140 is 2 mm to 4 mm. The length of the lead-out end line 222 from the second departure point 224 to the fixed portion 140 is 2 mm to 4 mm. The gap between the step portion 122c and the magnet 110 is 0.05 mm to 0.3 mm. The aperture of the balance adjustment hole 122a is 0.1 mm to 0.5 mm. In the above case, the overall size of the dynamic speaker is small, the lead-in end line 221 and the lead-out end line 222 of the voice coil 220 do not contact the vibrating diaphragm 210, and the lead-in end line 221 and the lead-out end line 222 are in a bent state during the process of passing through the annular gap 101 and the clearance gap 102, which will not cause a burden on the vibration of the voice coil 220, and the lead-in end line 221 and the lead-out end line 222 will not be pinched, and the balance adjustment hole 122a can offset the vibration of the lead-in end line 221 and the lead-out end line 222 in the annular gap 101. The dynamic speaker has a simple structure, is easy to assemble, has small sound quality discreteness, stable quality, and prevents shaking caused by the vibration of the voice coil 220. At the same time, it has the characteristics of high fidelity, high power, fast instantaneous response, and high frequency bandwidth response, completely eliminates the load on the sound membrane, and can make the vibration of the vibrating diaphragm 210 tend to an ideal vibration state, and can obtain better performance and sound quality. The above values ​​can be used for dynamic speakers, and can also be adjusted proportionally based on the above data to be used for dynamic speakers of other sizes.

[0064] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, 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.

[0065] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, 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 the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A dynamic loudspeaker, characterized in that: include: A magnetic assembly, wherein the magnetic assembly is provided with an annular gap, and the magnetic assembly is used to cooperate to form a magnetic field; and A sound membrane assembly, the sound membrane assembly comprising a vibrating diaphragm and a voice coil, one end of the voice coil extends into the annular gap, the other end of the voice coil is arranged in contact with the vibrating diaphragm, and the lead-in end line and the lead-out end line of the voice coil pass through the annular gap in a direction away from the vibrating diaphragm; The magnetic assembly includes a magnet, a first support and a second support, the first support and the second support are both made of magnetic materials, the second support is sleeved outside the first support, the annular gap is formed between the second support and the first support, and the second support and the first support are used to cooperate with the magnet to form the magnetic field; The first support comprises a connected guide column and a base, the magnet and the second support are both sleeved outside the guide column, the magnet is mounted on the base, a clearance gap is provided between the magnet and the base, the clearance gap is connected to the annular gap, and the lead-in end wire and the lead-out end wire are passed through the annular gap and the clearance gap in sequence; The base or the magnet is provided with a fixing part, the lead-in end wire and the lead-out end wire are both fixed at the fixing part, the fixing part is located in the clearance gap, the side of the magnet away from the second support is the first surface, the surface of the magnet opposite to the guide column is the second surface, and the fixing part is located at a position where the first surface is away from the second surface; The base is provided with a balance adjustment hole, the balance adjustment hole is communicated with the annular gap, and the lead-in end wire and the lead-out end wire pass through the clearance gap on both sides of the balance adjustment hole.

2. The dynamic speaker according to claim 1, characterized in that: The position where the lead-in end line leaves the voice coil is the first departure point, and the position where the lead-out end line leaves the voice coil is the second departure point. The first departure point and the second departure point are located on the side of the voice coil close to the clearance gap, and the angle between the first departure point and the second departure point is a, 0° <a<180°。 3. The dynamic speaker according to claim 2, characterized in that: The straight-line distance between the first departure point and the fixed part is L1, the line length of the lead-in end line between the first departure point and the fixed part is L2, 0.2mm≦L2-L1≦0.8mm, and the line length of the lead-out end line between the second departure point and the fixed part is L3, 0.2mm≦L3-L1≦0.8mm.

4. The dynamic speaker according to claim 1, characterized in that: The first support is provided with a central hole penetrating through the guide column and the base, a sound quality adjustment sheet is provided in the central hole, and a sound quality adjustment hole is provided on the sound quality adjustment sheet.

5. The dynamic speaker according to claim 1, characterized in that: The base is provided with a notch, the notch is provided with a step portion, the step portion and the magnet are arranged at an interval to cooperate to form the clearance gap, and the balance adjustment hole is provided on the step portion.

6. The dynamic speaker according to claim 1, characterized in that: The second support is provided with a mounting groove, the magnet and the first support are arranged in the mounting groove, the annular gap is formed between the first support and the inner wall of the mounting groove, the inner wall of the mounting groove is provided with a wiring hole, the lead-in end wire and / or the lead-out end wire are sequentially passed through the annular gap and the wiring hole.

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