Heart-shaped channel positive and negative wave coupling sound production and pickup device
By using a cardioid channel forward and reverse wave coupling sound generation and pickup device, the back wave generated by the vibration of the speaker unit is coupled in the cardioid main cavity and the crescent-shaped secondary cavity, which solves the problem of low space utilization efficiency in the existing technology and achieves efficient acoustic sound generation and pickup effect, which is suitable for a variety of acoustic products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 韶乐文枢科技(南京)有限公司
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing acoustic basic sound generation models suffer from low efficiency in electroacoustic conversion and sound source information restoration, resulting in high-quality products being bulky and expensive, while ordinary consumer-grade products have poor sound effects and lack industrialization and space utilization efficiency.
The device employs a cardioid channel forward and reverse wave coupling sound generation and pickup mechanism. The back wave generated by the vibration of the speaker unit is coupled through the cardioid main cavity and the crescent-shaped secondary cavity, which improves space utilization efficiency and achieves efficient sound wave transmission.
It achieves efficient space utilization, enhances the practicality and industrialization potential of sound generation and pickup devices, and boasts excellent sound quality and sound field performance, making it suitable for acoustic products in multiple fields.
Smart Images
Figure CN224538283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of acoustic technology, and more specifically to a cardioid channel positive and negative wave coupling sound generation and pickup device. Background Technology
[0002] The fundamental acoustic models involved in the acoustic industry's standard system have significant scientific and economic implications. Currently, there are two main types of fundamental acoustic models: First, the traditional infinite baffle acoustic model, which originated more than 100 years ago and is the mainstream acoustic model in the industry today.
[0003] The first model has very low efficiency in electroacoustic conversion and sound source information restoration, resulting in a polarization in the audio industry: high-quality products are bulky and expensive, while ordinary consumer products are out of reach of high-quality sound effects; the second is the phase-coupling sound wave model, which is based on the "phase-coupling effect" (Tai Chi acoustic effect) discovered by Yang Yugong in 2010. The efficiency of electroacoustic conversion and sound source information restoration far exceeds that of the infinite baffle sound wave model, and related products are increasingly recognized by industry professionals and consumers.
[0004] Currently, the continuous development and upgrading of the acoustics industry requires optimization and transformation of the basic sound generation and pickup model of the acoustics industry, so that the sound generation and pickup devices have a simpler, more practical, and more industrially suitable structural design, and in particular, it is necessary to significantly improve the space utilization efficiency of the sound generation device.
[0005] Therefore, how to provide a more practical, industrially viable, and space-efficient cardioid channel positive and negative wave coupling sound generation and pickup device is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0006] In view of this, the present invention provides a cardioid channel positive and negative wave coupling sound generation and pickup device, which aims to solve one of the problems in the above-mentioned background technology, making it more practical and industrialized, and improving space utilization efficiency.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A cardioid channel positive and negative wave coupling sound generation and pickup device, comprising:
[0009] The enclosure has a sound outlet on its front side, and multiple sound outlets are arranged along the edge of the enclosure.
[0010] A speaker unit is embedded inside the enclosure, with one side of the speaker unit facing the front of the enclosure and the other side of the speaker unit located inside the enclosure.
[0011] The speaker unit has a cardioid main cavity and a crescent-shaped secondary cavity, both of which are located inside the outer shell of the enclosure. The cardioid main cavity surrounds the periphery of the speaker unit, and the crescent-shaped secondary cavity is located below the cardioid main cavity.
[0012] Furthermore, an opening is provided at the apex of the heart-shaped main cavity.
[0013] Furthermore, multiple small holes are provided at the edge of the crescent-shaped sub-cavity.
[0014] Furthermore, the back wave generated by the vibration of the speaker unit first fills the heart-shaped main cavity, enters the crescent-shaped secondary cavity through the opening at the apex of the heart-shaped main cavity, and enters the air through the multiple small holes distributed on the edge of the crescent-shaped secondary cavity, thus coupling with the forward wave of the speaker unit.
[0015] Furthermore, the plurality of sound outlet holes are evenly distributed circumferentially on the lower half of the enclosure.
[0016] Furthermore, the speaker unit is located at the center of the front of the enclosure.
[0017] Furthermore, the outer shell of the box is configured as a flattened cylinder, a flattened sphere, or a sphere.
[0018] Furthermore, the speaker unit is configured as a horn with a circular front, and multiple small circular openings are evenly distributed around the circumference of the edge portion of the front of the horn.
[0019] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a cardioid channel forward and reverse wave coupling sound generation and pickup device. The back wave generated by the vibration of the speaker unit diaphragm first fills the cardioid main cavity, and according to the physical function characteristics of the heart shape, it enters the crescent-shaped secondary cavity through the opening at the apex of the cardioid main cavity, and enters the air through multiple small holes distributed on the edge of the crescent-shaped secondary cavity and couples with the forward wave of the speaker unit. It has extremely high space utilization efficiency. The back wave travels through a fairly long transmission channel in the seemingly narrow space, and this complete transmission channel fully conforms to the physical laws of energy operation. It is more practical and industrialized, and provides a strong technological innovation impetus for the upgrading and transformation of the acoustic industry. Attached Figure Description
[0020] 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 only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0021] Fig. 1 A schematic diagram of the cardioid channel positive and negative wave coupling sound generation and pickup device provided by this utility model;
[0022] Fig. 2 A front view of the cardioid channel positive and negative wave coupling sound generation and pickup device provided by this utility model;
[0023] Fig. 3 This is a schematic diagram of the internal structure of the cardioid channel positive and negative wave coupling sound generation and pickup device provided by this utility model.
[0024] Wherein: 1 is the cabinet shell; 2 is the speaker unit; 3 is the cardioid main cavity; 4 is the crescent-shaped secondary cavity; 5 is the sound outlet. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort, such as tuning settings in the inner wall or channel of the back wave channel, are within the protection scope of the present utility model.
[0026] See Figs. 1-3 This utility model discloses a cardioid channel positive and negative wave coupling sound generation and pickup device, including:
[0027] The cabinet shell 1 has a sound outlet 5 on its front side, and multiple sound outlets 5 are provided along the edge of the cabinet shell 1; specifically, there is one sound outlet 5, and the position of the sound outlet 5 can be adjusted on the cabinet shell 1 according to the actual situation.
[0028] Speaker unit 2 is embedded in the cabinet shell 1, with one side of speaker unit 2 facing the front of the cabinet shell 1 and the other side of speaker unit 2 located inside the cabinet shell 1.
[0029] The cardioid main cavity 3 and the crescent-shaped secondary cavity 4 are both located inside the outer shell of the enclosure. The cardioid main cavity 3 surrounds the periphery of the speaker unit 2, and the crescent-shaped secondary cavity 4 is located below the cardioid main cavity 3.
[0030] This utility model device has extremely high sound pressure efficiency. The small size of the above-mentioned verification model can produce a deep, realistic, and high-resolution sound; it has excellent reproduction ability, a huge sound field, and can completely present the sound source information; its most prominent feature is the balance and neutrality of the sound; it can form a highly versatile acoustic sound generation and pickup module, providing powerful empowerment for various products in all fields of the acoustic industry.
[0031] In this embodiment, an opening is provided at the apex of the heart-shaped main cavity 3.
[0032] In this embodiment, multiple small holes are provided at the edge of the crescent-shaped sub-cavity 4.
[0033] In this embodiment, the back wave generated by the vibration of the speaker unit 2 first fills the heart-shaped main cavity 3, enters the crescent-shaped secondary cavity 4 through the opening at the apex of the heart-shaped main cavity 3, and enters the air through multiple small holes distributed on the edge of the crescent-shaped secondary cavity 4, and couples with the forward wave of the speaker unit 2.
[0034] In this embodiment, multiple sound holes 5 are evenly distributed in a circle on the lower half of the outer shell 1.
[0035] In this embodiment, the speaker unit 2 is located at the center of the front of the enclosure 1.
[0036] In this embodiment, the outer shell 1 of the box is configured as a flat cylindrical shape, a flat spherical shape, or a spherical shape.
[0037] In this embodiment, the speaker unit 2 is configured as a circular speaker with multiple small circular openings evenly distributed around the circumference of the edge portion of the speaker. It adopts a 3-inch full-range speaker with a power of 8-15W, and the magnet frame is treated with adaptive acoustics.
[0038] In addition, in this embodiment, the outer shell 1 is set as an acrylic flat cylindrical box with a diameter of 17cm and a thickness of about 7cm.
[0039] The heart-shaped main cavity 3 and the crescent-shaped secondary cavity 4 are heart-shaped in different forms and with different curvatures.
[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A cardioid channel positive and negative wave coupling sound generation and pickup device, characterized in that, include: The outer shell (1) of the enclosure has a sound outlet (5) on its front side, and multiple sound outlets (5) are provided along the edge of the outer shell (1). A speaker unit (2) is embedded in the outer shell (1) of the enclosure. One side of the speaker unit (2) faces the front of the outer shell (1), and the other side of the speaker unit (2) is located inside the outer shell (1). The cardioid main cavity (3) and the crescent-shaped secondary cavity (4) are both disposed inside the outer shell of the enclosure. The cardioid main cavity (3) surrounds the periphery of the speaker unit (2), and the crescent-shaped secondary cavity (4) is located below the cardioid main cavity (3).
2. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 1, characterized in that, An opening is provided at the apex of the heart-shaped main cavity (3).
3. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 2, characterized in that, Multiple small holes are provided at the edge of the crescent-shaped sub-cavity (4).
4. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 3, characterized in that, The back wave generated by the vibration of the loudspeaker unit (2) first fills the heart-shaped main cavity (3), enters the crescent-shaped secondary cavity (4) through the opening at the apex of the heart-shaped main cavity (3), and enters the air through the multiple small holes distributed on the edge of the crescent-shaped secondary cavity (4) and couples with the forward wave of the loudspeaker unit (2).
5. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 1, characterized in that, Multiple sound holes (5) are evenly distributed in a circle on the lower half of the outer shell (1) of the enclosure.
6. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 1, characterized in that, The speaker unit (2) is located at the center of the front of the enclosure (1).
7. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 1, characterized in that, The outer shell (1) of the box is configured as a flat cylindrical shape, a flat spherical shape, or a spherical shape.
8. The cardioid channel positive and negative wave coupling sound generation and pickup device according to claim 3, characterized in that, The speaker unit (2) is configured as a circular horn with multiple small circular openings evenly distributed around the edge of the front of the horn.