Composite diaphragm flat speaker

Abstract

The utility model discloses a kind of composite diaphragm flat panel loudspeaker, including diaphragm component, the diaphragm component includes edge layer, ball top layer and wire array, wire array is fixedly connected on the both sides outer wall of ball top layer, ball top layer is fixedly connected with edge layer, the side of edge layer is provided with first shell, the other side of edge layer is provided with second shell, the position of corresponding wire array on first shell and second shell is fixedly connected with magnet array;The diaphragm component of the utility model is made of thermoplastic polyurethane elastomer and polyether ether ketone composite material edge layer, with high damping, high elasticity and fatigue resistance, can enhance loudspeaker low frequency stability, inhibit vibration deformation, stabilize loudspeaker total harmonic distortion, polyetherimide material is made ball top layer, can improve the resolving power of high frequency and high temperature resistance;The size of second tuning hole is adjusted by additionally adding adjusting plate, can satisfy the hearing preference of different users, improve the use experience of user, enhance market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a composite diaphragm flat panel loudspeaker. Background Technology

[0002] In the field of audio equipment, the speaker, as the core sound-producing component, directly affects the sound quality experience. Planar speakers achieve sound propagation through the uniform vibration of a planar diaphragm, possessing advantages such as wide frequency response, low distortion, and wide directivity. However, existing planar speakers have the following drawbacks: 1. Existing planar speakers use metal diaphragms to pursue high-frequency performance, but the large mass leads to transient response lag. Some technologies use silk diaphragms, which, while producing a mellow sound, are prone to deformation and aging. The edge material of existing diaphragms is generally made of rubber, which has good elasticity but insufficient damping, easily causing resonance peak shift during large amplitude low-frequency vibrations, and is also prone to low-frequency attenuation due to hardening with age; 2. The tuning port size of existing planar speakers is fixed and cannot be adjusted, so users cannot adjust the low-frequency style according to their personal listening preferences, affecting the user experience. Utility Model Content

[0003] The purpose of this invention is to provide a composite diaphragm flat panel loudspeaker to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a composite diaphragm flat panel speaker, including a diaphragm assembly, the diaphragm assembly including a side layer, a top spherical layer and a wire array, the wire array is fixedly connected to both outer walls of the top spherical layer, the side layer is fixedly connected to the top spherical layer, a first housing is provided on one side of the side layer, and a second housing is provided on the other side of the side layer, a magnet array is fixedly connected to the first housing and the second housing at positions corresponding to the wire array, a first mounting groove is provided on both the first housing and the second housing, a tuning mesh is fixedly connected in the first mounting groove, a second tuning hole is provided in the first mounting groove, an adjustment plate is rotatably connected to both the first housing and the second housing, and a first tuning hole is provided on the adjustment plate at a position corresponding to the second tuning hole.

[0005] Preferably, the edge layer is made of thermoplastic polyurethane elastomer and polyetheretherketone composite material, and the top sphere is made of polyetherimide material.

[0006] Preferably, slots are provided on the first and second housings at positions corresponding to the magnet array, and the magnet array is fixedly connected to the slots.

[0007] Preferably, the first and second housings are evenly distributed with multiple slots, the adjustment plate is provided with a through groove, a spring piece is fixedly connected in the through groove, a protrusion is fixedly connected on the spring piece, and the protrusion is engaged in the slot.

[0008] Preferably, both the first housing and the second housing are fixedly connected with elastic claws, and the elastic claws are engaged with the adjustment plate. The adjustment plate has a groove at the position corresponding to the elastic claw, and the elastic claw is disposed in the groove.

[0009] Preferably, the first housing has a plurality of mounting holes evenly distributed therein, and screws are installed in the mounting holes. A through hole is provided on the side layer at the position corresponding to the mounting hole. A threaded hole is provided on the second housing at the position corresponding to the through hole, and the screw passes through the through hole and is threaded into the threaded hole.

[0010] Preferably, the first housing has a second mounting groove, in which a circuit board is fixedly connected, and the circuit board is electrically connected to the wire array.

[0011] This utility model provides a composite diaphragm flat panel loudspeaker, which has the following advantages: The diaphragm assembly of this utility model uses thermoplastic polyurethane elastomer and polyetheretherketone composite material to make the edge layer, which has high damping, high elasticity and fatigue resistance, which can enhance the low frequency stability of the loudspeaker, suppress vibration deformation, and stabilize the total harmonic distortion of the loudspeaker. The top sphere is made of polyetherimide material, which can improve the high frequency resolution and high temperature resistance. By adding an adjustment plate to adjust the size of the second tuning hole, it can meet the listening preferences of different users, improve the user experience, and enhance market competitiveness. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is an exploded view of the overall three-dimensional structure of this utility model; Figure 3 for Figure 2 Enlarged view of the structure of region A in the middle; Figure 4 This is a three-dimensional structural diagram of the first shell of this utility model.

[0014] In the diagram: 1. Diaphragm assembly; 11. Side layer; 12. Top dome; 13. Conductor array; 2. First housing; 3. Second housing; 4. Magnet array; 41. Slot; 5. Adjustment plate; 51. Through slot; 52. Spring; 53. Protrusion; 54. Slide groove; 55. Elastic claw; 56. First tuning hole; 57. First mounting slot; 58. Tuning mesh; 59. Second tuning hole; 510. Slot; 6. Screw; 61. Mounting hole; 62. Through hole; 63. Threaded hole; 7. Circuit board; 71. Second mounting slot. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Please see the appendix Figure 1 - Appendix Figure 4This utility model provides an embodiment of a composite diaphragm flat panel loudspeaker, comprising a diaphragm assembly 1. The diaphragm assembly 1 includes a side layer 11, a dome top layer 12, and a wire array 13. Wire arrays 13 are fixedly connected to both outer walls of the dome top layer 12. The side layer 11 is fixedly connected to the dome top layer 12. A first housing 2 is provided on one side of the side layer 11, and a second housing 3 is provided on the other side. Magnet arrays 4 are fixedly connected to the first housing 2 and the second housing 3 at positions corresponding to the wire arrays 13. A first mounting groove 57 is provided on both the first housing 2 and the second housing 3. A tuning mesh 58 is fixedly connected to the first mounting groove 57, and a second tuning hole 59 is provided within the first mounting groove 57. An adjustment plate 5 is rotatably connected to both the first housing 2 and the second housing 3. A first tuning hole 56 is provided on the adjustment plate 5 at the position corresponding to the second tuning hole 59. The top spherical layer 12 is the vibrating part. After an audio current is passed through the wire array 13, it will move under the magnetic field of the magnet array 4, causing the top spherical layer 12 to vibrate and produce sound. The side layer 11 is the fixed part. The first housing 2 and the second housing 3 constitute the outer shell. The first mounting groove 57 is used to install the tuning mesh 58, which is used for dust prevention. Rotating the adjustment plate 5 can adjust the position of the first tuning hole 56. The intersection of the first tuning hole 56 and the second tuning hole 59 is the effective tuning hole. The side layer 11 is made of a thermoplastic polyurethane elastomer and a polyetheretherketone composite. The top sphere 12 is made of polyetherimide, a thermoplastic polyurethane with high elasticity and fatigue resistance. The damping performance can be adjusted by changing the hardness of the thermoplastic polyurethane. Polyether ether ketone can improve the deformation resistance and temperature stability of the edge layer 11. Polyetherimide is lightweight and has a high elastic modulus, which can reduce the inertial mass of the top sphere 12 and improve the high-frequency response speed. Slots 41 are provided on the first shell 2 and the second shell 3 at positions corresponding to the magnet array 4, and the magnet array 4 is fixedly connected within the slots 41. The slots 41 are used to install the magnet array 4. Multiple slots 510 are evenly distributed on the first shell 2 and the second shell 3. A through slot 51 is provided on the adjusting plate 5, and the through slot 51 is fixed within the through slot. A spring sheet 52 is fixedly connected to the adjustment plate 5, and a protrusion 53 is fixedly connected to the spring sheet 52. The protrusion 53 is engaged in the slot 510. The slot 51 is used to accommodate the spring sheet 52. The spring sheet 52 is used to provide a reset elastic force for the protrusion 53, so that the protrusion 53 can be engaged in the slot 510, thereby locking the position of the adjustment plate 5. Both the first housing 2 and the second housing 3 are fixedly connected to elastic claws 55, and the elastic claws 55 are engaged in the adjustment plate 5. A sliding groove 54 is opened on the adjustment plate 5 at the position corresponding to the elastic claws 55, and the elastic claws 55 are set in the sliding groove 54. The elastic claws 55 are used to restrict the adjustment plate 5, and the sliding groove 54 is used to avoid the elastic claws 55, so that the adjustment plate 5 can rotate.The first housing 2 has multiple mounting holes 61 evenly distributed on it, and screws 6 are installed in the mounting holes 61. A through hole 62 is provided on the side layer 11 at the position corresponding to the mounting holes 61. A threaded hole 63 is provided on the second housing 3 at the position corresponding to the through hole 62. The screw 6 passes through the through hole 62 and is threaded into the threaded hole 63. The mounting holes 61, through holes 62, and threaded holes 63 are used to install the screw 6, which is used to fix the first housing 2, side layer 11, and second housing 3 together. A second mounting groove 71 is provided on the first housing 2, and a circuit board 7 is fixedly connected in the second mounting groove 71. The circuit board 7 is electrically connected to the wire array 13. The second mounting groove 71 is used to accommodate the circuit board 7, and the circuit board 7 is used to electrically connect the wire array 13 to an external circuit.

[0017] Working principle: When using this utility model, the position of the first tuning hole 56 can be adjusted by rotating the adjusting plate 5, thereby adjusting the size of the intersection of the first tuning hole 56 and the second tuning hole 59, thus controlling the size of the effective tuning hole. In the diaphragm assembly 1, the top ball 12 is the vibrating part. After the audio current is passed through the wire array 13, it will move under the magnetic field of the magnet array 4, causing the top ball 12 to vibrate and produce sound. The side layer 11 is the fixing part, used to install the diaphragm assembly 1 between the first housing 2 and the second housing 3. The side layer 11 is made of thermoplastic polyurethane elastomer and polyetheretherketone composite material. Thermoplastic polyurethane has high elasticity and fatigue resistance, and the damping performance can be adjusted by adjusting the hardness of thermoplastic polyurethane. Polyetheretherketone can improve the deformation resistance and temperature stability of the side layer 11. The top ball 12 is made of polyetherimide material. Polyetherimide is lightweight and has a high elastic modulus, which can reduce the inertial mass of the top ball 12 and improve the high frequency response speed. The first housing... Body 2 and second housing 3 constitute the outer shell of the speaker. Slot 41 is used to install magnet array 4. Through slot 51 is used to accommodate spring piece 52. Spring piece 52 is used to provide reset elastic force for protrusion 53, so that protrusion 53 can be inserted into slot 510, thereby locking the position of adjustment plate 5. Elastic claw 55 is used to restrict adjustment plate 5. Slide groove 54 is used to avoid elastic claw 55, so that adjustment plate 5 can rotate relative to first housing 2 and second housing 3. First mounting slot 57 is used to install tuning mesh 58. Tuning mesh 58 is used for dust protection. Mounting hole 61, through hole 62 and threaded hole 63 are used to install screw 6. Screw 6 is used to fix first housing 2, side layer 11 and second housing 3 together. Second mounting slot 71 is used to accommodate circuit board 7. Circuit board 7 is used to electrically connect wire array 13 to external circuit. Magnet array 4 is neodymium iron boron magnet. By adopting symmetrical dual magnetic circuit, magnetic field uniformity is improved, speaker distortion is reduced and the linearity of diaphragm assembly 1 is improved.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A composite diaphragm flat panel loudspeaker, comprising a diaphragm assembly (1), characterized in that: The diaphragm assembly (1) includes a side layer (11), a dome top layer (12), and a conductor array (13). The conductor array (13) is fixedly connected to both outer walls of the dome top layer (12). The side layer (11) is fixedly connected to the dome top layer (12). A first housing (2) is provided on one side of the side layer (11), and a second housing (3) is provided on the other side of the side layer (11). A magnet array (4) is fixedly connected to the first housing (2) and the second housing (3) at the position corresponding to the conductor array (13). A first mounting groove (57) is provided on both the first housing (2) and the second housing (3). A tuning mesh (58) is fixedly connected in the first mounting groove (57). A second tuning hole (59) is provided in the first mounting groove (57). An adjustment plate (5) is rotatably connected to both the first housing (2) and the second housing (3). A first tuning hole (56) is provided on the adjustment plate (5) at the position corresponding to the second tuning hole (59).

2. The composite diaphragm flat panel loudspeaker according to claim 1, characterized in that: The edge layer (11) is made of thermoplastic polyurethane elastomer and polyetheretherketone composite material, and the top sphere (12) is made of polyetherimide material.

3. The composite diaphragm flat panel loudspeaker according to claim 1, characterized in that: The first housing (2) and the second housing (3) are provided with slots (41) at the positions corresponding to the magnet array (4), and the magnet array (4) is fixedly connected in the slots (41).

4. The composite diaphragm flat panel loudspeaker according to claim 1, characterized in that: Multiple slots (510) are evenly distributed on the first housing (2) and the second housing (3). A through slot (51) is opened on the adjustment plate (5). A spring piece (52) is fixedly connected in the through slot (51). A protrusion (53) is fixedly connected on the spring piece (52), and the protrusion (53) is engaged in the slot (510).

5. A composite diaphragm flat panel loudspeaker according to claim 4, characterized in that: Both the first housing (2) and the second housing (3) are fixedly connected with elastic claws (55), and the elastic claws (55) are engaged with the adjustment plate (5). The adjustment plate (5) is provided with a groove (54) at the position corresponding to the elastic claws (55), and the elastic claws (55) are disposed in the groove (54).

6. A composite diaphragm flat panel loudspeaker according to claim 1, characterized in that: The first housing (2) has multiple mounting holes (61) evenly distributed on it. Screws (6) are installed in the mounting holes (61). A through hole (62) is opened on the side layer (11) at the position corresponding to the mounting hole (61). A threaded hole (63) is opened on the second housing (3) at the position corresponding to the through hole (62). The screw (6) passes through the through hole (62) and is threaded into the threaded hole (63).

7. A composite diaphragm flat panel loudspeaker according to claim 6, characterized in that: The first housing (2) has a second mounting groove (71) and a circuit board (7) is fixedly connected in the second mounting groove (71). The circuit board (7) is electrically connected to the wire array (13).

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