Loudspeaker vibrating reed with lead-in structure
By designing the introduction structure on the speaker vibrator, the friction problem caused by the large contact area between the voice coil and the vertical wall is solved, and the voice coil is easily inserted and stably maintained inside the speaker.
Patent Information
- Application Number
- CN202422108208.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The voice coil of the existing speaker vibrator has a large contact area with the vertical wall and a large friction force, making it difficult for the voice coil to fit into the central hole.
A horn vibrating plate with an introduction structure is designed, including a wave portion, an outer peripheral edge, an inner peripheral edge and an oblique wall. A notch is provided on the oblique wall to separate it into a plurality of introduction structures. The voice coil only contacts the top of the introduction structure to reduce contact area and friction.
The voice coil can be easily fitted into the central hole and maintained in the correct position of the magnet core gap, reducing friction and improving insertion efficiency and stability.
Smart Images
Figure CN223182304U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a loudspeaker vibration plate, in particular to a loudspeaker vibration plate with an introduction structure. Background Art
[0002] Typical dynamic speakers produce sound by exploiting the principle that the reaction force of a fixed magnetic field causes another magnetic field to move in the opposite direction (i.e., opposites attract, likes repel). Specifically, the AC power generated by the power amplifier is transmitted to the voice coil via wires, changing the polarity of the magnetic field and causing the voice coil to generate a reaction force relative to the fixed magnetic field generated by the magnetic return device. Positive pulses cause the diaphragm to move outward relative to the magnet, while negative pulses cause the diaphragm to move inward relative to the magnet. When the voice coil pushes the diaphragm back and forth, the diaphragm pushes against the air, causing changes in air pressure to form sound waves. The elastic wave is used to maintain the voice coil in the correct position within the gap between the magnet core and ensure that the voice coil reciprocates along its axis when subjected to force. The suspension is provided between the diaphragm and the outer frame to support the diaphragm.
[0003] Many non-metallic components within typical speakers are made of base material. This is primarily because the specially treated base material possesses the appropriate elasticity and strength to provide the required functionalities during speaker operation. Examples include the diaphragm, damper, surround, and even the drum paper in small speakers. These non-metallic components are collectively referred to as speaker diaphragms. The base material is woven from multiple warp and weft yarns. Existing methods for manufacturing speaker diaphragms involve impregnating the base material with resin, drying it, hot-pressing it, and then cutting it.
[0004] The existing speaker vibration plate includes a wave portion, an outer periphery, an inner periphery and a vertical wall. The wave portion includes multiple waves, each wave includes a crest and a trough. The outer periphery is arranged on the outside of the wave portion, the inner periphery is arranged on the inside of the wave portion and has a center hole, and the vertical wall surrounds the inner side of the inner periphery.
[0005] However, the contact area between the voice coil and the vertical wall is large, resulting in a large friction force, which makes it difficult for the voice coil to be inserted into the center hole. Utility Model Content
[0006] The main purpose of the utility model is to provide a speaker vibration plate with an introduction structure, wherein the contact area between the voice coil and the introduction structure is small and the friction force is small.
[0007] To achieve the aforementioned objectives, the present utility model provides a speaker diaphragm with an insertion structure, which includes a corrugated portion, an outer periphery, an inner periphery, and an inclined wall. The corrugated portion includes a plurality of waves, and each wave includes a wave crest and a wave trough. The outer periphery surrounds the outside of the corrugated portion. The inner periphery surrounds the inside of the corrugated portion and has a central hole. The inclined wall surrounds the inside of the inner periphery, extends upward or downward toward the central hole, and has a plurality of notches, which divide the inclined wall into a plurality of insertion structures.
[0008] In some embodiments, the width of each notch in the radial direction gradually decreases from the central hole toward the inner periphery, and the width of each notch in the axial direction gradually decreases from its opening toward the inner periphery.
[0009] In some embodiments, the shape of each notch in the radial direction is V-shaped, and the shape of each notch in the axial direction is V-shaped.
[0010] In some embodiments, the angle between the two inclined surfaces of each notch in the radial direction is greater than 0 degrees and less than 180 degrees, and the angle between the two inclined surfaces of each notch in the axial direction is greater than 0 degrees and less than 180 degrees.
[0011] In some embodiments, the angle between the two inclined surfaces of each notch in the radial direction is 60 degrees, and the angle between the two inclined surfaces of each notch in the axial direction is 30 degrees.
[0012] In some embodiments, the arc lengths of the insertion structures are equal.
[0013] The efficacy of the present utility model is that when the voice coil is inserted into the central hole, the voice coil only contacts the inner side of the top of the insertion structures, the contact area is small, and the friction is small, so that the voice coil can easily push open the insertion structures. At the same time, the insertion structures can continuously contact the voice coil through their elastic force, so that the voice coil can be kept in the correct position in the gap of the iron core of the magnet. Description of the Drawings
[0014] Figure 1 Is a perspective view of the first embodiment of the speaker diaphragm with an insertion structure of the present utility model.
[0015] Figure 2 Is a top view of the first embodiment of the speaker diaphragm with an insertion structure of the present utility model.
[0016] Figure 3 Is a cross-sectional view of the first embodiment of the speaker diaphragm with an insertion structure of the present utility model.
[0017] Figure 4 Is a cross-sectional view of the voice coil inserted into the first embodiment of the speaker diaphragm with an insertion structure of the present utility model.
[0018] Figure 5 Is a perspective view of the second embodiment of the horn diaphragm with an introduction structure of the present utility model.
[0019] Figure 6 Is a top view of the second embodiment of the horn diaphragm with an introduction structure of the present utility model.
[0020] Figure 7 Is a sectional view of the second embodiment of the horn diaphragm with an introduction structure of the present utility model.
[0021] Figure 8 Is a sectional view of the voice coil sleeved on the second embodiment of the horn diaphragm with an introduction structure of the present utility model.
[0022]
Symbol Explanation
[0023] 10: Wave portion
[0024] 11: Wave
[0025] 111: Wave crest
[0026] 112: Wave trough
[0027] 20: Outer peripheral edge
[0028] 30: Inner peripheral edge
[0029] 31: Central hole
[0030] 40, 40A: Inclined wall
[0031] 41: Notch
[0032] 411: Inclined surface
[0033] 42: Introduction structure
[0034] 50: Voice coil
[0035] θ1, θ2: Angle Detailed implementation manners
[0036] The following further describes the implementation manners of the present utility model in conjunction with the drawings and component symbols, so that those skilled in the art can implement it after studying this specification.
[0037] Figure 1 Is a perspective view of the first embodiment of the horn diaphragm with an introduction structure of the present utility model. Figure 2 Is a top view of the first embodiment of the horn diaphragm with an introduction structure of the present utility model. Figure 3 Is a sectional view of the first embodiment of the horn diaphragm with an introduction structure of the present utility model. As Figure 1 ,Figure 2 and Figure 3 As shown in Figure 3 , the present utility model provides a speaker diaphragm with an insertion structure, which includes a corrugated portion 10, an outer periphery 20, an inner periphery 30 and an inclined wall 40. The corrugated portion 10 includes a plurality of corrugations 11, and each corrugation 11 includes a peak 111 and a valley 112. The outer periphery 20 surrounds the outside of the corrugated portion 10. The inner periphery 30 surrounds the inside of the corrugated portion 10 and has a central hole 31. The inclined wall 40 surrounds the inside of the inner periphery 30, extends upward in the direction of the central hole 31, and has a plurality of notches 41, and these notches 41 divide the inclined wall 40 into a plurality of insertion structures 42.
[0038] Figure 4 FIG. is a sectional view of the first embodiment of the speaker diaphragm with an insertion structure of the present utility model into which the voice coil 50 is inserted. Since these insertion structures 42 are part of the inclined wall 40, these insertion structures 42 all extend upward in the direction of the central hole 31, and these insertion structures 42 are separated from each other by these notches 41, so these insertion structures 42 are easy to bend and have elasticity. As Figure 4 shown in Figure 4 , when the voice coil 50 is inserted into the central hole 31, the voice coil 50 only contacts the inner side of the top ends of these insertion structures 42, the contact area is small, and the frictional force is small, so that the voice coil 50 can easily push open these insertion structures 42, and at the same time these insertion structures 42 can continuously contact the voice coil 50 through their elastic force, so that the voice coil 50 can be kept in the correct position in the gap of the iron core of the magnet (not shown in the figure).
[0039] Preferably, as Figure 2 and Figure 3 shown in Figure 2 and Figure 3 , the width of each notch 41 in the radial direction gradually decreases from the central hole 31 to the direction of the inner periphery 30, and the width of each notch 41 in the axial direction gradually decreases from its opening to the direction of the inner periphery 30. Therefore, these insertion structures 42 are easier to bend and have better elasticity. As Figure 4 shown in Figure 4 , when the voice coil 50 is inserted into the central hole 31, the voice coil 50 can more easily push open these insertion structures 42, and at the same time these insertion structures 42 can continuously contact the voice coil 50 through their elastic force more continuously, so that the voice coil 50 can be more kept in the correct position in the gap of the iron core of the magnet.
[0040] Preferably, as Figure 2 and Figure 3 shown in Figure 2 and Figure 3 , the shape of each notch 41 in the radial direction is V-shaped, and the shape of each notch 41 in the axial direction is V-shaped. Therefore, these insertion structures 42 are easier to bend and have better elasticity. As Figure 4As shown, when the voice coil 50 is inserted into the central hole 31, the voice coil 50 can more easily push aside the guiding structures 42, and at the same time, the guiding structures 42 can more continuously contact the voice coil 50 through their elastic force, so that the voice coil 50 can better maintain its correct position in the gap of the iron core of the magnet.
[0041] Preferably, as Figure 2 and Figure 3 shown, the radial angle θ1 between the two inclined surfaces 411 of each notch 41 is greater than 0 degree and less than 180 degrees, and the axial angle θ2 between the two inclined surfaces 411 of each notch 41 is greater than 0 degree and less than 180 degrees. Therefore, the guiding structures 42 are relatively easy to bend and have relatively excellent elasticity. As Figure 4 shown, when the voice coil 50 is inserted into the central hole 31, the voice coil 50 can more easily push aside the guiding structures 42, and at the same time, the guiding structures 42 can more continuously contact the voice coil 50 through their elastic force, so that the voice coil 50 can better maintain its correct position in the gap of the iron core of the magnet.
[0042] Preferably, as Figure 2 and Figure 3 shown, the radial angle θ1 between the two inclined surfaces 411 of each notch 41 is 60 degrees, and the axial angle θ2 between the two inclined surfaces 411 of each notch 41 is 30 degrees. Therefore, the guiding structures 42 are relatively easy to bend and have relatively excellent elasticity. As Figure 4 shown, when the voice coil 50 is inserted into the central hole 31, the voice coil 50 can more easily push aside the guiding structures 42, and at the same time, the guiding structures 42 can more continuously contact the voice coil 50 through their elastic force, so that the voice coil 50 can better maintain its correct position in the gap of the iron core of the magnet.
[0043] Preferably, as Figure 2 shown, the arc lengths of the guiding structures 42 are equal. Therefore, the guiding structures 42 have the same bending property and elasticity. As Figure 4 shown, when the voice coil 50 is inserted into the central hole 31, the force for the voice coil 50 to push aside the guiding structures 42 is the same, and the elastic force provided by the guiding structures 42 to the voice coil 50 is the same, so that the voice coil 50 can better maintain its correct position in the gap of the iron core of the magnet.
[0044] Figure 5 is a perspective view of the second embodiment of the loudspeaker diaphragm with a guiding structure of the present invention. Figure 6 is a top view of the second embodiment of the loudspeaker diaphragm with a guiding structure of the present invention. Figure 7 is a sectional view of the second embodiment of the loudspeaker diaphragm with a guiding structure of the present invention. As Figure 5 、 Figure 6 and Figure 7As shown, the difference between the second embodiment and the first embodiment is that the inclined wall 40A extends downward toward the central hole 31. Except for this, the remaining technical features of the second embodiment are exactly the same as those of the first embodiment.
[0045] Figure 8 It is a sectional view of the second embodiment in which the voice coil 50 is inserted into the loudspeaker diaphragm with an introduction structure of the present invention. Since these introduction structures 42 are part of the inclined wall 40A and all extend downward toward the central hole 31, and these introduction structures 42 are separated from each other by these notches 41, these introduction structures 42 are easily bent and elastic. As Figure 8 shown, when the voice coil 50 is inserted into the central hole 31, the voice coil 50 only contacts the inner side of the top ends of these introduction structures 42, the contact area is small, and the frictional force is small, so that the voice coil 50 can easily push open these introduction structures 42, and at the same time these introduction structures 42 can continuously contact the voice coil 50 through their elastic force, so that the voice coil 50 can be kept in the correct position in the gap of the iron core of the magnet (not shown in the figure).
[0046] The above are only preferred embodiments for explaining the present invention, and are not intended to limit the present invention in any form. Therefore, any modification or change made to the present invention under the same creative spirit should still be included in the scope intended to be protected by the present invention.
Claims
1. A speaker diaphragm with an introduction structure, characterized in that, Comprising: A wave portion, including a plurality of waves, each of the waves including a wave crest and a wave trough; An outer peripheral edge, surrounding the outside of the wave portion; An inner peripheral edge, surrounding the inside of the wave portion and having a central hole; and An inclined wall, surrounding the inside of the inner peripheral edge, extending upward or downward in the direction of the central hole, and having a plurality of notches, the plurality of notches separating the inclined wall into a plurality of guiding structures.
2. The loudspeaker diaphragm with an introduction structure according to claim 1, characterized in that, The width of each of the notches in the radial direction gradually decreases from the central hole towards the inner peripheral edge, and the width of each of the notches in the axial direction gradually decreases from its opening towards the inner peripheral edge.
3. The loudspeaker diaphragm with an introduction structure according to claim 2, characterized in that, The shape of each of the notches in the radial direction is V-shaped, and the shape of each of the notches in the axial direction is V-shaped.
4. The loudspeaker diaphragm with an introduction structure according to claim 3, wherein, The angle between the two inclined surfaces of each of the notches in the radial direction is greater than 0 degrees and less than 180 degrees, and the angle between the two inclined surfaces of each of the notches in the axial direction is greater than 0 degrees and less than 180 degrees.
5. The loudspeaker diaphragm with an introduction structure according to claim 4, characterized in that, The angle between the two inclined surfaces of each of the notches in the radial direction is 60 degrees, and the angle between the two inclined surfaces of each of the notches in the axial direction is 30 degrees.
6. The loudspeaker diaphragm with an introduction structure according to claim 1, characterized in that, The arc lengths of the plurality of guiding structures are equal.