Box type loudspeaker

Abstract

The utility model relates to the technical field of electroacoustic horn design, in particular to a box-type horn, which comprises an upper cover box and a lower cover box, diaphragm frames are arranged in the upper cover box and the lower cover box, diaphragms are arranged in the diaphragm frames, three-fold ring edges are arranged at the joints of the diaphragms and the diaphragm frames, and the diaphragm frames are arranged in the three-fold ring edges. A miniature hole is formed in the middle of the diaphragm, a magnet frame is installed between the upper cover box and the lower cover box, and a plurality of sets of magnets are arranged in the middle of the magnet frame. According to the utility model, the coil is laterally arranged, so that the two long sides of the coil are respectively arranged in magnetic fields with different directions, driving force in the same direction is generated during power-on work, and larger amplitude can be generated in the same volume; the sound box can be divided into an upper cavity and a lower cavity which serve as a front cavity for sound output, and the sound pressure level can be increased due to the fact that the phases of two sounds are consistent.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic loudspeaker design technology, specifically a box-type loudspeaker. Background Technology

[0002] In the audio field, large-amplitude speaker units can provide stronger low-frequency response and higher sound pressure levels, meeting the requirements of professional audio systems and home theaters for sound intensity and dynamic range. Consumers' demands for sound quality are constantly increasing, hoping that speakers can more accurately reproduce sound details and dynamics while reducing distortion. Traditional speaker units have certain limitations in high-frequency and low-frequency performance, requiring structural improvements to enhance sound quality.

[0003] The existing technology still has the following drawbacks in its use:

[0004] Existing speakers with flat-mounted coils have relatively small amplitudes. Because the position of the coil determines the sound pressure level of the product, it is difficult to guarantee product consistency during production. In the existing method of flat-mounting long coils, some coils are not in the magnetic circuit, resulting in lower efficiency. Existing units all use a magnetic circuit plus a diaphragm coil, causing the speaker to vibrate up and down during operation, and the sound pressure level is insufficient.

[0005] Therefore, we propose a box-type speaker to solve the existing problems. Utility Model Content

[0006] The purpose of this invention is to provide a box-type speaker to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a box-type speaker, comprising an upper cover box and a lower cover box, both the upper cover box and the lower cover box having a diaphragm frame inside, a diaphragm being disposed within the diaphragm frame, a three-fold ring edge being provided at the connection between the diaphragm and the diaphragm frame, a micro-hole being provided in the middle of the diaphragm, a magnet frame being installed between the upper cover box and the lower cover box, multiple sets of magnets being disposed in the middle of the magnet frame, coils being installed at intervals between the magnets, and multiple sets of wires extending outward from one end of the coils.

[0008] Preferably, the diameter of the micropore is 0.03mm-0.10mm.

[0009] Preferably, the upper end of the coil is fixedly connected to the diaphragm.

[0010] Preferably, all of the multiple sets of magnets are strip-shaped and placed parallel to each other, and all of the magnets are fixed inside the magnet frame.

[0011] Preferably, the upper and lower cover boxes are provided with sealing adhesive dots at the connection points with the wires.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses a side-mounted coil to ensure that the two long sides of the coil are placed in magnetic fields with different directions, generating a driving force in the same direction when energized, which can produce a larger amplitude within the same volume. This invention can be divided into upper and lower cavities and serve as the front cavity for sound output. Since the two sounds are in phase, the sound pressure level can be increased. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0016] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0017] Figure 4 A schematic diagram of the internal three-dimensional structure of the Type 1 box-type loudspeaker;

[0018] Figure 5 A schematic diagram of the internal three-dimensional structure of the Type 2 box-type loudspeaker;

[0019] Figure 6 A schematic diagram of the internal three-dimensional structure of the Type 3 box-type loudspeaker;

[0020] Figure 7 This is a schematic diagram of the internal three-dimensional structure of a prototype box-shaped loudspeaker.

[0021] In the diagram: 1. Upper cover box; 2. Lower cover box; 3. Sealing adhesive dot; 4. Wire; 5. Diaphragm; 6. Microhole; 7. Diaphragm frame; 8. Triple-fold ring edge; 9. Coil; 10. Magnet; 11. Magnet frame. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the present invention proposes a box-type speaker, including an upper cover box 1 and a lower cover box 2. Both the upper cover box 1 and the lower cover box 2 are provided with a diaphragm frame 7. A diaphragm 5 is provided inside the diaphragm frame 7. A three-fold ring edge 8 or a four-fold ring edge is provided at the connection between the diaphragm 5 and the diaphragm frame 7. A micro hole 6 is opened in the middle of the diaphragm 5. A magnet frame 11 is installed between the upper cover box 1 and the lower cover box 2. Multiple sets of magnets 10 are provided in the middle of the magnet frame 11. A coil 9 is installed at the intervals of the magnets 10. Multiple sets of wires 4 extend outward from one end of the coil 9.

[0025] The coil 9 is side-mounted, ensuring that its two long sides are placed in magnetic fields of different directions, generating a driving force in the same direction when energized. This allows for a larger amplitude within a given volume. Diaphragms 5 and coil 9 are combined at both ends of the magnet 10. When the speaker is operating, the input signal causes the diaphragms 5 to move in opposite directions, thus canceling out vibrations. The speaker unit can use both the upper and lower cavities as the front cavity for sound output; because the two sounds are in phase, the sound pressure level can be increased.

[0026] Furthermore, the diameter of the micro-hole 6 is 0.03mm-0.10mm, which can achieve pressure balance between the front and rear chambers under different temperatures and air pressures, thereby improving the environmental adaptability of the product.

[0027] Furthermore, the upper end of the coil 9 is fixedly connected to the diaphragm 5, the diaphragm 5 is placed on the inner protrusion of the box cover and sealed with glue, and the coil 9 is bonded to the diaphragm 5 with glue.

[0028] Furthermore, all the magnets 10 are strip-shaped and placed in parallel with each other. Each magnet 10 is fixed inside the magnet frame 11. The magnets 10 and the magnet frame 11 can be fixed by welding, glue, etc., and sealed with glue on the outside.

[0029] Furthermore, sealing adhesive dots 3 are provided at the connection points between the upper cover box 1 and the lower cover box 2 and the wire 4.

[0030] Example 2

[0031] like Figure 4 As shown, this utility model also proposes a box-type speaker, which is provided with two sets of flat coils, with the coils placed one above the other and a magnet frame in the middle. An outer magnet and an inner magnet are arranged in the middle of the magnet frame, and the outer magnet and the inner magnet are connected by a magnet-to-magnet adhesive.

[0032] Example 3

[0033] like Figure 5As shown, this utility model also proposes a box-type speaker, which is equipped with two sets of flat coils, with the coils placed one above the other and a magnet frame in the middle. The magnet frame is also equipped with an outer magnet and an inner magnet, which are connected by a magnet component adhesive. Compared with embodiment two, the size of both the inner and outer magnets has increased.

[0034] Example 4

[0035] like Figure 6 As shown, this utility model also proposes a box-type speaker, which is provided with two sets of coils, with the coils placed one above the other and a long coil between the coils. A magnet frame is provided in the middle of the upper and lower parts of the coils. An outer magnet and an inner magnet are also provided in the middle of the magnet frame. The outer magnet and the inner magnet are connected by a magnet component glue.

[0036] Example 5

[0037] like Figure 7 As shown, this utility model also proposes a box-type speaker, which is provided with a single set of flat coils. The coils are located at the center and placed on the side. A magnet frame is provided outside the coils, and four sets of bar magnets are installed on the magnet frame. The bar magnets are symmetrically arranged around the coils.

[0038] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A box-type speaker, comprising an upper cover box (1) and a lower cover box (2), characterized in that: Both the upper cover box (1) and the lower cover box (2) are provided with a diaphragm frame (7), and a diaphragm (5) is provided inside the diaphragm frame (7). A three-fold ring edge (8) is provided at the connection between the diaphragm (5) and the diaphragm frame (7). A micro hole (6) is opened in the middle of the diaphragm (5). A magnet frame (11) is installed between the upper cover box (1) and the lower cover box (2). Multiple sets of magnets (10) are provided in the middle of the magnet frame (11). A coil (9) is installed at the intervals of the magnets (10). Multiple sets of wires (4) extend outward from one end of the coil (9).

2. A box-type loudspeaker according to claim 1, characterized in that: The diameter of the micropore (6) is 0.03mm-0.10mm.

3. A box-type loudspeaker according to claim 1, characterized in that: The upper end of the coil (9) is fixedly connected to the diaphragm (5).

4. A box-type loudspeaker according to claim 1, characterized in that: The multiple sets of magnets (10) are all strip-shaped and are placed in parallel with each other. The magnets (10) are all fixed inside the magnet frame (11).

5. A box-type loudspeaker according to claim 1, characterized in that: The upper cover box (1) and the lower cover box (2) are provided with sealing glue points (3) at the connection with the wire (4).

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