Annular double-dangling-edge flat plate unit with optional pasting type tuning cavity

Abstract

The utility model belongs to the technical field of earphone panel units, and particularly relates to an annular double-dangling-edge panel unit with a selectable pasting type tuning cavity, which aims to more flexibly adapt to low-frequency and medium-high-frequency expressions with different requirements, and comprises a panel unit shell, a panel unit assembly and a pressure relief tuning part, the tablet unit assembly is arranged in the tablet unit shell, a first through hole is formed in the back face of the tablet unit shell, a second through hole is formed in the surface of the pressure relief tuning component, the pressure relief tuning component is detachably pasted on the back face of the tablet unit shell, and the first through hole is covered with the pressure relief tuning component. According to the utility model, the resonant frequency can be flexibly adjusted according to the use condition so as to adapt to different requirements of different types of earphones on the resonant frequency.

Description

Technical Field

[0001] The utility model belongs to the technical field of earphone flat panel units, in particular to an annular double-cantilevered flat panel unit with an optional adhesive tuning cavity. Background Art

[0002] In the flat unit of the earphone, the magnet is fixedly arranged on the diaphragm and parallel to the diaphragm, and a coil is installed at the position of the magnet corresponding to the vibration mode. When current passes through the coil, the magnetic field generated by the magnet is perpendicular to the current. According to Faraday's law of electromagnetic induction, the coil will generate a vertical force, which will cause the diaphragm to vibrate in the vertical direction, thereby converting the electrical signal into a sound signal.

[0003] In headphone applications, different types of headphones have different requirements for resonant frequency. However, it is difficult to balance such requirements in actual headphone design. Due to structural factors such as headphone integration and device volume, the resonant frequency cannot be adjusted.

[0004] Therefore, it is necessary to design a flat panel unit to flexibly adjust the resonant frequency according to usage conditions to adapt to different requirements of different types of headphones on the resonant frequency. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the utility model provides an annular double-cantilevered flat plate unit with an optional adhesive tuning cavity, which can flexibly adjust the resonant frequency according to the usage to adapt to the different requirements of different types of headphones for the resonant frequency.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] An annular double-cantilevered flat plate unit with an optional adhesive tuning cavity comprises a flat plate unit housing, a flat plate unit assembly and a pressure relief tuning component;

[0008] The flat panel unit assembly is arranged in the flat panel unit shell, a first through hole is arranged on the back side of the flat panel unit shell, a second through hole is arranged on the surface of the pressure relief and tuning component, the pressure relief and tuning component is detachably attached to the back side of the flat panel unit shell, and the pressure relief and tuning component covers the first through hole.

[0009] Preferably, the flat panel unit housing comprises a unit upper cover and a unit lower cover;

[0010] The unit upper cover and the unit lower cover are detachably connected, and the second through hole is arranged on the unit lower cover.

[0011] Preferably, the unit upper cover and the unit lower cover are both made of non-magnetic materials.

[0012] Preferably, the flat unit assembly includes a unit upper magnet, a rigid sheet, a PU diaphragm, a conductive voice coil, inner and outer unit brackets, and a unit lower magnet;

[0013] The unit upper magnet, the rigid sheet, the PU diaphragm, the conductive voice coil, the inner and outer unit brackets and the unit lower magnet are sequentially overlapped and assembled together;

[0014] The upper unit magnet faces the front side of the flat unit housing, and the lower unit magnet faces the back side of the flat unit housing.

[0015] Preferably, the PU diaphragm is circular, and is provided with two circles of annular hanging edges.

[0016] Preferably, the rigid sheet is an annular structure and is arranged between two circles of the hanging edges on the front side of the PU diaphragm.

[0017] Preferably, the conductive voice coil is a ring-shaped structure, and the conductive voice coil is arranged on the back side of the PU diaphragm and is located opposite to the rigid sheet.

[0018] Preferably, the inner and outer unit brackets include an outer bracket and an inner bracket, the outer bracket is annular and arranged on the outer circle of the flat plate unit assembly, and the inner bracket is circular and arranged at the center of the flat plate unit assembly.

[0019] Preferably, the diameter of the annular double-cantilevered flat plate unit is 10 mm.

[0020] The utility model has the following advantages and beneficial effects:

[0021] The utility model is provided with a detachable pressure relief tuning component, through which the volume of the rear cavity can be flexibly adjusted, so as to facilitate the adjustment of the resonant frequency, thereby flexibly adapting to different requirements of different types of headphones for the resonant frequency under one design;

[0022] The mid-high frequency performance and low frequency performance of the utility model can be achieved by simply removing or installing the pressure relief tuning component, and the adjustment method is simple and easy to operate;

[0023] The diameter of the utility model can be limited to 10 mm, which can meet the application requirements of most in-ear headphones and has a wide range of applications;

[0024] The utility model adopts a double suspension diaphragm, which helps to maintain the ductility of high frequencies and the smoothness of frequency response, and can also significantly reduce the split vibration frequency, making the force distribution of the unit more uniform during operation, and effectively reducing nonlinear distortion;

[0025] The utility model can realize improvement through a simple structure, has low improvement cost and has high cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of an annular double-cantilevered flat plate unit with an optional adhesive tuning cavity provided in Example 1 of the utility model;

[0027] Figure 2 An exploded schematic diagram of the structure of an annular double-cantilevered flat plate unit with an optional adhesive tuning cavity provided in Example 2 of the utility model;

[0028] Figure 3 A schematic diagram of the structure of a flat panel unit housing provided in Example 2 of the utility model;

[0029] Icon: 101-unit upper cover, 102-unit upper magnet, 103-rigid sheet, 104-PU diaphragm, 105-conductive voice coil, 106-inner and outer unit brackets, 107-unit lower magnet, 108-unit lower cover, 109-pressure relief tuning component, 1-flat unit housing, 21-first through hole, 22-second through hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions 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 only part of the embodiments of the utility model, not all of the embodiments.

[0031] 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.

[0032] Example 1

[0033] This embodiment provides a circular double-cantilever flat plate unit with an optional adhesive tuning cavity, see Figure 1 , including a flat unit housing 1, a flat unit assembly and a pressure relief tuning component 109;

[0034] The flat panel unit assembly is arranged in the flat panel unit housing 1, a first through hole 21 is arranged on the back side of the flat panel unit housing 1, a second through hole 22 is arranged on the surface of the pressure relief tuning component 109, the pressure relief tuning component 109 is detachably attached to the back side of the flat panel unit housing 1, and the pressure relief tuning component 109 covers the first through hole 21.

[0035] In this embodiment, the pressure relief tuning component 109 provides flexible rear cavity volume adjustment to meet different low-frequency response requirements, thereby optimizing unit performance and customizing sound quality. Specifically, when the pressure relief tuning component 109 is pasted and set, it can expand the rear cavity volume of the unit, thereby reducing the resonance frequency F0 and enhancing the low-frequency performance. When the pressure relief tuning component 109 is removed and not enabled, the rear cavity volume of the unit is reduced accordingly, increasing the resonance frequency F0, reducing the low-frequency response, and making the mid- and high-frequency more significant. This flexible design aims to adjust and optimize the performance of the audio unit according to different sound quality requirements.

[0036] Example 2

[0037] This embodiment is based on the technical solution of embodiment 1, see Figure 2 , the components and housing of the annular double-cantilevered flat plate unit are further explained.

[0038] In this embodiment, see Figure 3 , the flat panel unit housing 1 includes a unit upper cover 101 and a unit lower cover 108;

[0039] The unit upper cover 101 and the unit lower cover 108 are detachably connected, and the second through hole 22 is provided on the unit lower cover 108. The detachable arrangement facilitates maintenance of internal components.

[0040] Furthermore, the unit upper cover 101 and the unit lower cover 108 are both made of non-magnetic materials. The unit upper cover 101 and the unit lower cover 108 made of non-magnetic materials can help reduce the magnetic leakage of the non-magnetic circuit part of the unit, which not only improves the overall magnetic flux of the magnetic circuit, but also increases the overall energy conversion efficiency of the unit.

[0041] As a preferred solution of this embodiment, the flat unit assembly includes a unit upper magnet 102, a rigid sheet 103, a PU diaphragm 104, a conductive voice coil 105, inner and outer unit brackets 106 and a unit lower magnet 107;

[0042] The unit upper magnet 102, the rigid sheet 103, the PU diaphragm 104, the conductive voice coil 105, the inner and outer unit brackets 106 and the unit lower magnet 107 are sequentially overlapped and assembled together;

[0043] The upper unit magnet 102 faces the front side of the flat unit housing 1 , and the lower unit magnet 107 faces the back side of the flat unit housing 1 .

[0044] Furthermore, the pu diaphragm 104 is circular, and the pu diaphragm 104 is provided with two circles of annular hanging edges.

[0045] In addition, the rigid sheet 103 is an annular structure, and is disposed between the two circles of the hanging edges on the front side of the PU diaphragm 104. The hanging edge is specifically a circle of structure protruding on the front side.

[0046] On the other hand, the conductive voice coil 105 is a ring-shaped structure, and the conductive voice coil 105 is disposed on the back side of the PU diaphragm 104 and is located opposite to the rigid sheet 103 .

[0047] The double suspension structure shortens the distance between the suspension edges, which not only helps to maintain the ductility of high frequencies and the smoothness of frequency response, but also significantly reduces the split vibration frequency, making the force distribution of the unit more uniform during operation, and effectively reducing nonlinear distortion. At the same time, the double suspension structure also ensures stability during low-frequency and large-amplitude output, and effectively resists the distortion caused by the unit under high sound pressure. In addition, the rigid sheet 103 makes the force on the diaphragm more balanced, further curbing the generation of split vibration.

[0048] In addition, the design of the PU diaphragm 104 having a magnet on only one side in the flat unit assembly breaks through the limitations of the traditional symmetrical magnetic circuit and takes into account the difference in magnetic field strength generated by each magnet in the magnet array, thereby ensuring that the magnetic field effect on the conductive voice coil 105 is more balanced. This optimization can improve the consistency of the vibration of the diaphragm and optimize the overall sound quality performance.

[0049] In this embodiment, the inner and outer unit bracket 106 includes an outer bracket and an inner bracket, the outer bracket is annular and is arranged on the outer circle of the flat plate unit assembly, and the inner bracket is circular and is arranged at the center of the flat plate unit assembly.

[0050] Finally, the diameter of the annular double-cantilevered flat unit is 10 mm, which can meet the application requirements of most in-ear headphones.

[0051] 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 circular double-cantilever flat unit with an optional adhesive tuning cavity, characterized in that The annular double-cantilevered flat plate unit comprises a flat plate unit housing (1), a flat plate unit assembly and a pressure relief tuning component (109); The flat panel unit assembly is arranged in the flat panel unit housing (1); a first through hole (21) is arranged on the back of the flat panel unit housing (1); a second through hole (22) is arranged on the surface of the pressure relief tuning component (109); the pressure relief tuning component (109) is detachably attached to the back of the flat panel unit housing (1), and the pressure relief tuning component (109) covers the first through hole (21).

2. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 1, characterized in that: The flat panel unit housing (1) comprises a unit upper cover (101) and a unit lower cover (108); The unit upper cover (101) and the unit lower cover (108) are detachably connected, and the second through hole (22) is provided on the unit lower cover (108).

3. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 2, characterized in that: The unit upper cover (101) and the unit lower cover (108) are both made of non-magnetic materials.

4. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 1, characterized in that: The flat unit assembly comprises a unit upper magnet (102), a rigid sheet (103), a PU diaphragm (104), a conductive voice coil (105), inner and outer unit brackets (106) and a unit lower magnet (107); The unit upper magnet (102), the rigid sheet (103), the PU diaphragm (104), the conductive voice coil (105), the inner and outer unit brackets (106) and the unit lower magnet (107) are sequentially overlapped and assembled together; The upper unit magnet (102) faces the front side of the flat unit housing (1), and the lower unit magnet (107) faces the back side of the flat unit housing (1).

5. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 4, characterized in that: The PU diaphragm (104) is circular, and is provided with two circles of annular hanging edges.

6. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 5, characterized in that: The rigid sheet (103) is an annular structure and is arranged between the two circles of the hanging edges on the front side of the PU diaphragm (104).

7. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 6, characterized in that: The conductive voice coil (105) is a ring-shaped structure, and the conductive voice coil (105) is arranged on the back side of the PU diaphragm (104) and is located opposite to the rigid sheet (103).

8. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 7, characterized in that: The inner and outer unit brackets (106) include an outer bracket and an inner bracket, wherein the outer bracket is annular and arranged at the outer circle of the flat plate unit assembly, and the inner bracket is circular and arranged at the center of the flat plate unit assembly.

9. The annular double-cantilevered flat panel unit with an optional adhesive tuning cavity according to claim 1, characterized in that: The diameter of the annular double-cantilevered flat plate unit is 10 mm.

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