Double-voice-coil vibration system for sounder

Abstract

The utility model provides a double-voice-coil vibration system for a sounder, and relates to the technical field of sound equipment. Comprising a diaphragm assembly, a double-voice coil assembly is arranged on the diaphragm assembly, and the diaphragm assembly is clamped in the middle of the double-voice coil assembly; a PCB welding plate is arranged outside the double voice coil assembly, and the PCB welding plate is electrically connected with the double voice coil assembly. According to the utility model, the vibrating diaphragm is arranged as an assembly and the double voice coil assemblies are arranged on the upper and lower surfaces of the vibrating diaphragm assembly, so that the sounding stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of audio equipment, in particular to a double voice coil vibration system for a sound generator. Background Art

[0002] Sound is the propagation of vibration in a medium. The vibration system of the sound generator is responsible for converting energy into sound waves, which are then propagated in the environment. Therefore, the vibration system of the sound generator is the core of any sound-generating device, which is responsible for converting energy into sound waves, which are then propagated into the surrounding environment.

[0003] A single voice coil vibration system generally refers to a simple electromagnetic speaker configuration that contains a voice coil and a diaphragm connected to it.

[0004] However, in daily use, the single voice coil vibration system has insufficient response to the high and low frequencies, resulting in poor sound quality. The traditional dual voice coil also fails to effectively respond due to poor connection. Utility Model Content

[0005] The purpose of the utility model is to overcome the problem that the prior art uses a single voice coil vibration method to achieve sound, resulting in poor sound quality. The utility model provides a dual voice coil vibration system for a sound generator, by arranging the diaphragm as a component and arranging dual voice coil components on the upper and lower surfaces of the diaphragm component, thereby improving the stability of the sound.

[0006] The purpose of the utility model is mainly achieved through the following technical solutions:

[0007] A dual voice coil vibration system for a sound generator, comprising a diaphragm assembly, a dual voice coil assembly being arranged on the diaphragm assembly, and the diaphragm assembly being clamped in the middle of the dual voice coil assembly;

[0008] The dual voice coil assembly is provided with a PCB welding board outside, and the PCB welding board is electrically connected to the dual voice coil assembly.

[0009] At present, in the design of existing vibration systems, the most widely used is the single voice coil vibration system, which has a simple structure but poor sound quality. Therefore, the application of dual voice coil vibration systems is in a booming stage, but the dual voice coils of the existing dual voice coil vibration system work relatively independently and cannot form effective synergy, which leads to synchronization problems.

[0010] The utility model improves the sound quality and synchronization of the vibration system by arranging a PCB welding plate in series or in parallel with the double voice coil assembly, thereby improving the overall quality of the vibration system through electrical connection.

[0011] Furthermore, the dual voice coil assembly includes an upper voice coil and a lower voice coil, the upper voice coil is fixed to the upper surface of the diaphragm assembly, and the lower voice coil is fixed to the lower surface of the diaphragm assembly;

[0012] The upper voice coil and the lower voice coil are connected in parallel through the PCB welding board, and the upper voice coil and the lower voice coil are connected in anti-phase.

[0013] In the utility model, the upper voice coil and the lower voice coil are both fixed to the diaphragm assembly, and the upper voice coil and the lower voice coil are connected in parallel through a PCB welding plate, so that the upper voice coil and the lower voice coil can maintain a certain degree of independence even when they influence each other, so that more detailed sounds can be emitted under the action of the utility model, thereby increasing the sound detail expression of the sound generator.

[0014] Further, the diaphragm assembly includes a dome, the dome is clamped in the middle of the dual voice coil assembly, and the upper surface of the dome and the lower surface of the dome are both fixedly connected to the dual voice coil assembly;

[0015] The outer cover of the ball top is provided with a folding ring, and the folding ring is integrally formed with the ball top;

[0016] A supporting ring is fixed below the edge of the folding ring.

[0017] Furthermore, a temperature regulating ring plate is provided below the PCB welding plate, the temperature regulating ring plate is in contact with the PCB welding plate, and the temperature regulating ring plate can absorb heat.

[0018] Based on the use of dual voice coil components, the heat generated by the entire vibration system will also increase dramatically. If the vibration system overheats, it may cause the entire sound generator to fail, so controlling the temperature is a key factor in ensuring the service life of the sound generator.

[0019] In the present invention, the temperature regulating ring plate can absorb the excess heat of the diaphragm assembly and the excess heat of the dual voice coil assembly by absorbing heat from the PCB welding plate, thereby controlling the temperature of the diaphragm assembly and the dual voice coil assembly within a reasonable range. Transferring and absorbing heat through the PCB welding plate can also prevent the temperature regulating ring plate from directly acting on the diaphragm assembly and the dual voice coil assembly, thereby affecting the sound generation of the vibration system.

[0020] Furthermore, the temperature regulating ring plate includes a ring plate body, a hollow section is provided on the ring plate body, a plurality of heat absorbing balloons are filled in the ring plate body, and a replacement port for replacing the heat absorbing balloons is provided on the side of the ring plate body.

[0021] The utility model provides a space for accommodating a heat-absorbing balloon through the ring plate body, and absorbs heat through the heat-absorbing balloon in the ring plate body. The hollow section can provide sufficient expansion and contraction space through the spare area, thereby preventing the temperature regulating ring plate from being separated from the PCB welding plate due to thermal expansion and contraction problems.

[0022] Furthermore, a first heat exchange arc plate and a second heat exchange arc plate are provided on the ring plate body, and the first heat exchange arc plate and the second heat exchange arc plate are alternately distributed on the upper surface of the ring plate body.

[0023] The utility model arranges a first heat exchange arc plate and a second heat exchange arc plate on the upper surface of the ring plate body, thereby improving the heat exchange efficiency, and through the staggered distribution of the first heat exchange arc plate and the second heat exchange arc plate, the utilization rate of the heat exchange position between the ring plate body and the PCB welding plate can be effectively improved.

[0024] Furthermore, the heat-absorbing balloon includes an outer balloon body, an inner balloon body is arranged inside the outer balloon body, a reaction liquid is filled between the outer balloon body and the inner balloon body, a heat-absorbing agent is filled inside the inner balloon body, and the inner balloon body can be thermally dissolved.

[0025] In the utility model, the outer capsule is used to isolate the contact between the internal reagent and the outside world, and the inner capsule is used to isolate the contact between the heat absorber and the reaction liquid. The inner capsule can be thermally dissolved, so when the temperature of the reaction liquid rises, that is, when the ring plate body is heated, the inner capsule can dissolve to make the heat absorber and the reaction liquid contact and produce a chemical reaction, thereby starting to absorb heat, thereby achieving the purpose of taking into account the temperature of the ring plate body.

[0026] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The utility model improves the sound quality and synchronization of the vibration system by providing a PCB welding board in series or in parallel with the dual voice coil assembly, thereby improving the overall quality of the vibration system through electrical connection.

[0028] (2) The utility model provides a space for accommodating a heat-absorbing balloon through the ring plate body, and absorbs heat through the heat-absorbing balloon in the ring plate body. The hollow section can provide sufficient expansion and contraction space through the spare area, thereby preventing the temperature regulating ring plate from being separated from the PCB welding plate due to thermal expansion and contraction.

[0029] (3) In the present invention, the inner capsule is used to isolate the contact between the heat absorber and the reaction liquid. The inner capsule can be thermally dissolved. Therefore, when the temperature of the reaction liquid rises, that is, when the ring plate body is heated, the inner capsule can dissolve to allow the heat absorber and the reaction liquid to contact and produce a chemical reaction, thereby starting to absorb heat, thereby achieving the purpose of taking into account the temperature of the ring plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the utility model;

[0032] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0033] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0034] Figure 4 This is a schematic diagram of the temperature regulating ring plate structure in the utility model;

[0035] Figure 5 It is a cross-sectional schematic diagram of the heat-absorbing balloon in the utility model.

[0036] Icons: 1. Dual voice coil assembly; 2. Diaphragm assembly; 3. Temperature regulating ring plate; 4. Heat absorbing balloon; 5. PCB welding board; 11. Upper voice coil; 12. Lower voice coil; 21. Dome; 22. Folding ring; 23. Support ring; 31. Hollow section; 32. First heat exchange arc plate; 33. Positioning notch; 34. Ring plate body; 35. Second heat exchange arc plate; 36. Replacement port; 41. Outer balloon body; 42. Reaction liquid; 43. Inner balloon body; 44. Heat absorber. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example:

[0040] Please refer to Figure 1-Figure 5 shown.

[0041] The present application provides a dual voice coil vibration system for a sound generator, comprising a diaphragm assembly 2, on which a dual voice coil assembly 1 is provided, and the diaphragm assembly 2 is clamped in the middle of the dual voice coil assembly 1;

[0042] The dual voice coil assembly 1 is provided with a PCB welding board 5 outside, and the PCB welding board 5 is electrically connected to the dual voice coil assembly 1 .

[0043] In actual application of this embodiment, the diaphragm assembly 2 is used for vibration and sound generation, and the dual voice coil assembly 1 can act on the upper surface and the lower surface of the diaphragm assembly 2 at the same time, thereby improving the overall vibration quality of the vibration system, and the dual voice coil assembly 1 can further improve the vibration quality through the electrical connection of the PCB welding board 5, thereby ensuring that the sound emitted by the sound generator is more delicate and the sound quality can also be improved.

[0044] The dual voice coil assembly 1 includes an upper voice coil 11 and a lower voice coil 12, wherein the upper voice coil 11 is fixed to the upper surface of the diaphragm assembly 2, and the lower voice coil 12 is fixed to the lower surface of the diaphragm assembly 2;

[0045] The upper voice coil 11 and the lower voice coil 12 are connected in parallel via the PCB soldering plate 5 , and the upper voice coil 11 and the lower voice coil 12 are connected in anti-phase.

[0046] The diaphragm assembly 2 includes a dome 21, and the dome 21 is clamped in the middle of the dual voice coil assembly 1, and the upper surface of the dome 21 and the lower surface of the dome 21 are both fixedly connected to the dual voice coil assembly 1;

[0047] The outer cover of the ball top 21 is provided with a folding ring 22, and the folding ring 22 and the ball top 21 are integrally formed;

[0048] A support ring 23 is fixed below the edge of the folding ring 22 .

[0049] In actual application of this embodiment, the diaphragm assembly 2 is composed of a support ring 23, a folding ring 22 and a dome 21. The support ring 23 supports and fixes the diaphragm assembly 2. The folding ring 22 is arc-shaped to increase the amplitude of vibration of the diaphragm assembly 2. The material is an elastic material, such as PEEK, PU, ​​PET, PET and other one or more materials. The dome 21 is a material with good rigidity and a planar structure, which is convenient for bonding the voice coil. The material of the dome 21 can be plastic or metal, carbon fiber and other hard and light materials. The upper voice coil 11 is bonded to the upper surface of the dome 21 by glue, and the lower voice coil 12 is bonded to the lower surface of the dome 21 by glue.

[0050] The PCB welding board 5 is composed of 6 pads, the two middle pads are used for audio input, and the two pads on both sides are used for welding the upper voice coil 11 and the lower voice coil 12, wherein the two voice coils are connected in parallel and in anti-phase, so that the sound quality and detail performance of this embodiment are enhanced.

[0051] A temperature regulating ring plate 3 is provided below the PCB soldering plate 5 . The temperature regulating ring plate 3 is in contact with the PCB soldering plate 5 , and the temperature regulating ring plate 3 can absorb heat.

[0052] The temperature regulating ring plate 3 in this embodiment can help the vibration system to dissipate heat by regulating the ambient temperature of the vibration system, thereby achieving heat dissipation of the vibration system through heat exchange without affecting the sound generation of the vibration system.

[0053] The temperature regulating ring plate 3 includes a ring plate body 34 , a hollow section 31 is provided on the ring plate body 34 , a plurality of heat absorbing balloons 4 are filled in the ring plate body 34 , and a replacement port 36 for replacing the heat absorbing balloons 4 is provided on the side of the ring plate body 34 .

[0054] The ring plate body 34 is provided with a first heat exchange arc plate 32 and a second heat exchange arc plate 35 , and the first heat exchange arc plate 32 and the second heat exchange arc plate 35 are alternately distributed on the upper surface of the ring plate body 34 .

[0055] The heat absorbing balloon 4 includes an outer balloon 41 , an inner balloon 43 is disposed inside the outer balloon 41 , a reaction liquid 42 is filled between the outer balloon 41 and the inner balloon 43 , a heat absorbing agent 44 is filled inside the inner balloon 43 , and the inner balloon 43 can be thermally dissolved.

[0056] In this embodiment, due to the use of a dual voice coil structure, the heat generated by the entire vibration system will be greatly improved during the vibration process. However, since the overall structure of the sound generator is not affected, the life of the vibration system will decay rapidly during long-term use. At this time, it is necessary to effectively control the temperature of the vibration system so that this embodiment can avoid overheating.

[0057] This embodiment adopts the method of setting a temperature regulating ring plate 3 below the PCB welding plate 5 to effectively absorb heat from the vibration system, so that the overall temperature of the vibration system is controlled within a reasonable range. In this embodiment, the reaction liquid 42 is water, and the heat absorbent 44 is ammonium chloride. After the ammonium chloride is dissolved in the inner capsule 43, it can contact with water to form an endothermic reaction, thereby reducing the temperature of the ring plate body 34. The outer capsule 41 is used to isolate the reaction liquid 42 to prevent leakage.

[0058] The first heat exchange arc plate 32 and the second heat exchange arc plate 35 on the ring plate body 34 are made of copper plate, which can effectively improve the heat exchange efficiency. The ring plate body 34 itself is not made of copper to avoid excessive heat loss, thereby reducing the heat absorption capacity of the ring plate body 34.

[0059] In this embodiment, the replacement port 36 can replace the heat-absorbing balloon 4, thereby avoiding failure of this embodiment after the heat-absorbing balloon 4 reacts. A positioning notch 33 is provided on the ring plate body 34, so that the angular position of the temperature regulating ring plate 3 can be effectively determined, which is convenient for installation and operation.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double voice coil vibration system for a sound generator, comprising a diaphragm assembly (2), characterized in that: A dual voice coil assembly (1) is provided on the diaphragm assembly (2), and the diaphragm assembly (2) is clamped in the middle of the dual voice coil assembly (1); The dual voice coil assembly (1) is provided with a PCB welding board (5) outside, and the PCB welding board (5) is electrically connected to the dual voice coil assembly (1).

2. The double voice coil vibration system for a sound generator according to claim 1, characterized in that: The dual voice coil assembly (1) comprises an upper voice coil (11) and a lower voice coil (12), wherein the upper voice coil (11) is fixed to the upper surface of the diaphragm assembly (2), and the lower voice coil (12) is fixed to the lower surface of the diaphragm assembly (2); The upper voice coil (11) and the lower voice coil (12) are connected in parallel via the PCB welding plate (5), and the upper voice coil (11) and the lower voice coil (12) are connected in anti-phase.

3. The double voice coil vibration system for a sound generator according to claim 1 or 2, characterized in that: The diaphragm assembly (2) comprises a dome (21), the dome (21) being clamped in the middle of the dual voice coil assembly (1), and the upper surface of the dome (21) and the lower surface of the dome (21) being fixedly connected to the dual voice coil assembly (1); The outer cover of the spherical top (21) is provided with a folding ring (22), and the folding ring (22) and the spherical top (21) are integrally formed; A supporting ring (23) is fixed below the edge of the folding ring (22).

4. The double voice coil vibration system for a sound generator according to claim 1, characterized in that: A temperature regulating ring plate (3) is provided below the PCB welding plate (5); the temperature regulating ring plate (3) is in contact with the PCB welding plate (5); and the temperature regulating ring plate (3) is capable of absorbing heat.

5. The double voice coil vibration system for a sound generator according to claim 4, characterized in that: The temperature regulating ring plate (3) comprises a ring plate body (34), a hollow section (31) is provided on the ring plate body (34), a plurality of heat absorbing balloons (4) are filled in the ring plate body (34), and a replacement port (36) capable of replacing the heat absorbing balloons (4) is provided on the side of the ring plate body (34).

6. The double voice coil vibration system for a sound generator according to claim 5, characterized in that: A first heat exchange arc plate (32) and a second heat exchange arc plate (35) are provided on the ring plate body (34); the first heat exchange arc plate (32) and the second heat exchange arc plate (35) are staggeredly distributed on the upper surface of the ring plate body (34).

7. The double voice coil vibration system for a sound generator according to claim 5, characterized in that: The heat absorbing balloon (4) comprises an outer balloon (41), an inner balloon (43) is arranged inside the outer balloon (41), a reaction liquid (42) is filled between the outer balloon (41) and the inner balloon (43), a heat absorbing agent (44) is filled inside the inner balloon (43), and the inner balloon (43) is heat-soluble.

Images