CN213028539U

CN213028539U - Light and thin large-caliber loudspeaker

Info

Publication number: CN213028539U
Application number: CN202022216033.3U
Authority: CN
Inventors: 雷存虎; 董根; 邓雪英; 陈进进
Original assignee: Jiashan Mingxu Electroacoustic Co ltd
Current assignee: Jiashan Mingxu Electroacoustic Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-04-20
Anticipated expiration: 2030-09-30

Abstract

The utility model provides a frivolous heavy-calibre loudspeaker, its includes a stake body, one sets up sound membrane subassembly on the stake body, one sets up installation cavity between stake body and sound membrane subassembly, and one sets up vibration subassembly in the installation cavity. The support body comprises a basin-shaped main body, an annular step arranged in the middle of the basin-shaped main body and extending outwards in the radial direction, and an annular guide part arranged on the periphery of the step. The sound film component comprises a copper ring arranged on the annular step, a sound film arranged on the copper ring and used for sealing the basin-shaped main body, and a limiting ring arranged on one side, far away from the copper ring, of the sound film. This light and thin heavy-calibre loudspeaker keeps the unchangeable while of vibration frequency to reduce vibration amplitude, in order to be applicable to the basin form main part, the loudspeaker casing is thinner and noninterference, avoids the bar decorative pattern to bear too big axial force and leads to breaking.

Description

Light and thin large-caliber loudspeaker

Technical Field

The utility model belongs to the technical field of the speaker, especially a frivolous heavy-calibre loudspeaker.

Background

The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

The outer diameter of the sound film of the existing large-caliber loudspeaker is also large, the vibration amplitude of the vibrating film is relatively large, so that the loudspeaker shell is thick, the diaphragm bears large axial force, and the diaphragm is easy to lose elasticity or even breaks in the long-term use process.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a light and thin large-diameter speaker to solve the above problems.

The utility model provides a frivolous heavy-calibre loudspeaker, its includes a stake body, one sets up sound membrane subassembly on the stake body, one sets up installation cavity between stake body and sound membrane subassembly, and one sets up vibration subassembly in the installation cavity. The support body comprises a basin-shaped main body, an annular step arranged in the middle of the basin-shaped main body and extending outwards in the radial direction, and an annular guide part arranged at the circumferential edge of the annular step. The sound film component comprises a copper ring arranged on the annular step, a sound film arranged on the copper ring and used for sealing the basin-shaped main body, and a limiting ring arranged on one side, far away from the copper ring, of the sound film. The sound membrane includes that one is connected elastic diaphragm on the copper ring, one sets up the vibrating diaphragm at elastic diaphragm middle part, one sets up elastic diaphragm is close to the buffering book ring portion of spacing ring one side, and one sets up elastic diaphragm is close to the separation book ring portion of vibrating diaphragm one side to and at least three is the circumference setting and is in on the elastic diaphragm and inside recessed bar decorative pattern.

Furthermore, one end of each rib is close to the separation folding ring part, and a distance exists between the other end of each rib and the buffering folding ring part.

Furthermore, an included angle formed between the length direction of the bar-shaped patterns and the radial direction of the elastic membrane is an acute angle.

Further, one end of the retainer ring protrudes from an end surface of the annular guide portion.

Further, the height of the limiting ring is larger than the vibration amplitude of the diaphragm.

Furthermore, a spherical crown part is arranged in the middle of the diaphragm.

Furthermore, the vibration assembly comprises a containing cavity which is arranged in the middle of the basin-shaped main body and protrudes towards one side far away from the voice diaphragm assembly, a magnetic conduction part arranged in the containing cavity, a vibration groove arranged between the outer wall of the magnetic conduction part and the inner wall of the containing cavity, and a vibration voice coil arranged on one side, close to the support body, of the vibration diaphragm.

Furthermore, the circumferential edge of the bracket body in the accommodating cavity is provided with at least two air inlets which are arranged at intervals and communicated with the outside and the mounting cavity.

Furthermore, one side of the support body, which is far away from the sound film assembly, is provided with a circuit board, and the circuit board is provided with at least two leads.

Furthermore, an abdicating notch is arranged on the annular guide part.

Compared with the prior art, the utility model provides a pair of frivolous heavy-calibre loudspeaker can effectively restrain this elastic diaphragm's elasticity deformation volume through add bar decorative pattern at elastic diaphragm, reduce the vibration range when keeping the vibration frequency unchangeable to be applicable to the basin form main part, the loudspeaker casing is thinner and noninterference, and bar decorative pattern's overall arrangement makes bar decorative pattern can offset the axial vibration volume through the circumference rotation of vibrating diaphragm moreover, avoids bar decorative pattern to bear too big axial force and leads to breaking.

Drawings

Fig. 1 is a schematic structural view of a light, thin and large-diameter speaker according to the present invention.

Fig. 2 is a schematic top view of the thin and large-caliber horn of fig. 1.

Fig. 3 is a schematic bottom view of the thin and large-caliber speaker of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Please refer to fig. 1 to fig. 3, which are schematic structural diagrams of a light, thin and large-caliber speaker according to the present invention. A light, thin and large-caliber loudspeaker comprises a support body 10, a sound membrane component 20 arranged on the support body 10, a mounting cavity 14 arranged between the support body 10 and the sound membrane component 20, and a vibration component 30 arranged in the mounting cavity 14. It is contemplated that the lightweight, thin and large-caliber horn may further include other functional components and specific structures, such as electrical connection components, sealing structures, mounting structures, etc., which are well known to those skilled in the art, and therefore, will not be described in detail herein.

The support body 10 includes a tub-shaped main body 11, an annular step 12 disposed in the middle of the tub-shaped main body 11 and extending radially outward, and an annular guide 13 disposed at a circumferential edge of the annular step 12. The support body 10 adopts a basin-shaped structure, so that the thickness of the loudspeaker shell is reduced while the space of the internal installation cavity 14 is ensured, and the installation of the large-caliber sound film assembly 20 is facilitated.

The sound diaphragm assembly 20 comprises a copper ring 21 arranged on the annular step 12, a sound diaphragm 22 arranged on the copper ring 21 and closing the basin-shaped body 11, and a limit ring 23 arranged on one side of the sound diaphragm 22 far away from the copper ring 21. The copper ring 21 is used for fixing the circumferential edge of the sound film 22, and is matched with the annular step 12 and stably embedded in the bracket body 10. The limiting ring 23 is used for limiting circumferential movement of the copper ring 21, namely, the copper ring 21 is fixed, and the sound diaphragm 22 can be elastically deformed in the axial direction.

One end of the retainer ring 23 protrudes from the end surface of the annular guide portion 13. The height of the limiting ring 23 is greater than the vibration amplitude of the diaphragm 222, and the structural design of the limiting ring 23 ensures that the sound membrane 22 does not exceed the height of the limiting ring 23 when vibrating, i.e. is not affected by external components.

The sound membrane 22 includes an elastic membrane 221 connected to the copper ring 21, a vibration membrane 222 disposed in the middle of the elastic membrane 221, a buffering corrugated ring portion 223 disposed on one side of the elastic membrane 221 near the limiting ring 23, a separating corrugated ring portion 224 disposed on one side of the elastic membrane 221 near the vibration membrane 222, and at least three inwardly recessed ribs 225 circumferentially disposed on the elastic membrane 221. The vibration assembly 30 drives the diaphragm 222 to vibrate axially, and the elastic membrane 221 deforms elastically and vibrates accordingly. The buffer bent part 223 restrains the radial vibration of the elastic diaphragm 221 towards one side of the copper ring 21, and avoids the elastic diaphragm 221 from cracking caused by high-strength vibration between the diaphragm and the positioning ring. The middle of the diaphragm 222 is further provided with a spherical crown portion 226, which enhances the structural strength of the diaphragm 222, and cooperates with the separation loop portion 224 to keep the diaphragm 222 stable in structure and keep the good vibration effect of the diaphragm 222. It is conceivable that the elastic membrane 221 closer to the side of the diaphragm 222 has a larger vibration amplitude, and the amount of elastic deformation of the elastic membrane 221 can be effectively suppressed by the rib 225, and the vibration amplitude can be reduced while maintaining the vibration frequency unchanged, so as to be suitable for the tub-shaped body 11 with a thinner horn housing without interference.

One end of the rib 225 is close to the separating folded ring part 224, and a space is reserved between the other end of the rib 225 and the buffering folded ring part 223, and the structure of the rib 225 keeps the elastic membrane 221 corresponding to the deformation amount and simultaneously keeps the sound membrane 22 vibrating within the height of the limit ring 23. The included angle formed between the length direction of the rib 225 and the radial direction of the elastic membrane 221 is an acute angle, and the included angle is formed between the length direction of the rib 225 and the radial direction of the elastic membrane 221, so that the rib 225 can be prevented from vibrating too much, the axial vibration amount can be offset by the circumferential rotation of the vibrating diaphragm 222 through the rib 225, and the rib 225 is prevented from being broken due to too much axial force.

The vibration component 30 includes a containing cavity 31 disposed in the middle of the basin-shaped main body 11 and protruding toward a side far away from the voice diaphragm component 20, a magnetic conduction portion 32 disposed in the containing cavity 31, a vibration groove 34 disposed between an outer wall of the magnetic conduction portion 32 and an inner wall of the containing cavity 31, and a vibration voice coil 33 disposed on a side of the vibration diaphragm 222 close to the support body 10. After the vibration voice coil 33 is energized, the vibration voice coil 33 drives the diaphragm 22 to vibrate back and forth along the vibration groove 34 in cooperation with the magnetic conductive portion 32.

The circumferential edge of the support body 10 located in the accommodating cavity 31 is provided with at least two air inlet holes 111 which are arranged at intervals and communicated with the outside and the mounting cavity 14. The air inlet hole 111 structure can keep the pressure of the inner side and the outer side of the loudspeaker consistent when the sound film component 20 vibrates.

The side of the support body 10 away from the voice diaphragm assembly 20 is provided with a circuit board 30, and the circuit board 30 is provided with at least two leads 31. An abdicating notch 227 is arranged on the annular guide part 13. The circuit board 30 is connected with a lead penetrating through the abdicating notch 227, and transmits an electroacoustic signal to the vibration voice coil 33 after being electrified. The offset gap 227 facilitates the connection of the vibration coil 33 with the circuit board 30 through the bracket body 10.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a frivolous heavy-calibre loudspeaker which characterized in that: the light and thin large-caliber loudspeaker comprises a support body, a sound membrane component arranged on the support body, an installation cavity arranged between the support body and the sound membrane component, and a vibration component arranged in the installation cavity, wherein the support body comprises a basin-shaped main body, an annular step arranged in the middle of the basin-shaped main body and extending radially outwards, and an annular guide part arranged at the circumferential edge of the annular step, the sound membrane component comprises a copper ring arranged on the annular step, a sound membrane arranged on the copper ring and closing the basin-shaped main body, and a limit ring arranged at one side of the sound membrane far away from the copper ring, the sound membrane comprises an elastic membrane connected to the copper ring, a vibrating membrane arranged in the middle of the elastic membrane, and a buffer ring folding part arranged at one side of the elastic membrane close to the limit ring, the elastic diaphragm is provided with a separation ring-folding part arranged on one side of the elastic diaphragm close to the vibrating diaphragm and at least three inward concave bar-shaped patterns which are circumferentially arranged on the elastic diaphragm.

2. The thin, lightweight and heavy caliber horn of claim 1, wherein: one end of each rib is close to the separation folding ring part, and a distance exists between the other end of each rib and the buffering folding ring part.

3. The thin, lightweight and heavy caliber horn of claim 1, wherein: the included angle between the length direction of the bar-shaped patterns and the radial direction of the elastic membrane is an acute angle.

4. The thin, lightweight and heavy caliber horn of claim 1, wherein: one end of the retainer ring protrudes from an end surface of the annular guide portion.

5. The thin, lightweight and heavy caliber horn of claim 1, wherein: the height of the limiting ring is larger than the vibration amplitude of the vibrating diaphragm.

6. The thin, lightweight and heavy caliber horn of claim 1, wherein: the middle part of the diaphragm is also provided with a spherical crown part.

7. The thin, lightweight and heavy caliber horn of claim 1, wherein: the vibration assembly comprises a containing cavity, a magnetic conduction portion and a vibration groove, wherein the containing cavity is arranged in the middle of the basin-shaped main body and protrudes towards one side of the sound membrane assembly, the magnetic conduction portion is arranged in the containing cavity, the vibration groove is arranged between the outer wall of the magnetic conduction portion and the inner wall of the containing cavity, and the vibration voice coil is arranged on one side, close to the support body, of the vibration diaphragm.

8. The thin, lightweight and heavy caliber horn of claim 1, wherein: the circumferential edge of the bracket body, which is positioned in the accommodating cavity, is provided with at least two air inlet holes which are arranged at intervals and communicated with the outside and the mounting cavity.

9. The thin, lightweight and heavy caliber horn of claim 1, wherein: one side of the support body, which is far away from the sound film assembly, is provided with a circuit board, and the circuit board is provided with at least two lead wires.

10. The thin, lightweight and heavy caliber horn of claim 1, wherein: the annular guide part is provided with an abdicating notch.