Loudspeaker with high-fidelity sound effect

Abstract

The utility model discloses a loudspeaker with a high-fidelity sound effect, a magnetic circuit assembly is arranged in the loudspeaker, the magnetic circuit assembly comprises a first magnetic element, a second magnetic element, a first washer and a T iron with a T-shaped cross section, and the T iron is provided with a base and a magnetic conductive column which is located at the center of the base and protrudes upwards. The annular magnet wraps the side surfaces of the second magnetic element and the magnetic conductive column, so that the magnetization directions of the first magnetic element and the second magnetic element respectively face the first washer. The annular magnet can restrain leakage of a magnetic field, so that magnetization directions of the first magnetic element and the second magnetic element are gathered on the first washer, a four-side magnetic field surrounding effect is formed, the magnetic field is more concentrated, the volume of the loudspeaker is larger, and distortion is smaller. Besides, the loudspeaker is provided with the conical cover and the two vibrating diaphragm rings, and the top of the conical cover is higher than the top of the second vibrating diaphragm ring, so that when the loudspeaker is used, the bass performance is more stable, and the high pitch is louder, thereby stretching the bandwidth and reducing the distortion.

Description

Technical Field

[0001] The utility model relates to an audio device, especially a loudspeaker. Background Art

[0002] The patent document with the publication number of CN207505140U discloses a loudspeaker and an audio, and the adopted technical solution is as follows: the loudspeaker includes a T-iron, an annular magnet, a washer, a voice coil and a magnetic conduction sheet. The magnetic conduction sheet is circularly arranged, and the diameter of the magnetic conduction sheet is larger than the diameter of the magnetic conduction column of the T-iron. The magnetic conduction sheet converges and concentrates the magnetic lines of force in the magnetic conduction column, so that the magnetic lines of force are guided to the inner peripheral surface of the washer through the outer peripheral surface of the magnetic conduction sheet. This can reduce the distortion degree of the loudspeaker. However, the annular magnet wraps the side surface of the magnetic conduction column, and the magnetic conduction sheet is arranged at the upper end of the magnetic conduction column of the T-iron. In this way, part of the magnetic force of the magnetic conduction sheet still leaks out, resulting in an insufficiently concentrated magnetic field distribution, and thus problems such as insufficient power, limited volume and large distortion of the loudspeaker occur. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a loudspeaker with high-fidelity sound effect.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A loudspeaker with high-fidelity sound effect, a magnetic circuit assembly is arranged in the loudspeaker. The magnetic circuit assembly includes a first magnetic element, a second magnetic element, a first washer and a T-iron with a T-shaped cross section. The lower end of the first magnetic element is connected to the upper side of the first washer, and the upper end of the second magnetic element is connected to the lower side of the first washer; the T-iron has a base and a magnetic conduction column protruding upward from the center of the base. The lower end of the second magnetic element is connected to the upper side of the magnetic conduction column, and an annular magnet is installed at the upper end of the base. After assembly, the annular magnet wraps the side surfaces of the second magnetic element and the magnetic conduction column, so that the magnetization directions of the first magnetic element and the second magnetic element respectively face the first washer.

[0006] The thickness of the first magnetic element is greater than the thickness of the second magnetic element or the first washer.

[0007] A shielding filter screen is installed in the magnetic circuit assembly. The magnetic circuit assembly is provided with a through hole penetrating through the first magnetic element, the second magnetic element, the first washer and the T-iron. After assembly, the shielding filter screen is installed in the through hole.

[0008] A second washer is installed at the upper end of the annular magnet. An annular magnetic circuit gap is formed between the first washer and the second washer, and a voice coil is installed in the magnetic circuit gap.

[0009] The loudspeaker includes a chassis, the lower end of the chassis is mounted on the upper end of the second washer, a conical diaphragm is mounted inside the chassis, after assembly, the lower end of the conical diaphragm is connected to the upper end of the voice coil, and a spider is mounted between the conical diaphragm and the voice coil.

[0010] A conical cover is mounted at the center of the conical diaphragm, a first diaphragm ring is sleeved outside the conical cover, a second diaphragm ring is provided at the upper edge of the conical diaphragm, and after assembly, the top of the conical cover is higher than the top of the second diaphragm ring.

[0011] The beneficial effect of the present utility model is that the magnetic circuit assembly of the present utility model includes a first magnetic element, a second magnetic element, a first washer and a T-iron. Since the annular magnet wraps the sides of the second magnetic element and the magnetic conduction column, the magnetization directions of the first magnetic element and the second magnetic element are respectively directed towards the first washer. The annular magnet can suppress the leakage of the magnetic field, so that the magnetization directions of the first magnetic element and the second magnetic element are concentrated on the first washer, forming a surrounding effect of a four-sided magnetic field. In this way, the magnetic field is more concentrated, the volume of the loudspeaker is larger, and the distortion is smaller.

[0012] In addition, the loudspeaker is provided with a conical cover and two diaphragm rings, and the top of the conical cover is higher than the top of the second diaphragm ring. When in use, the bass performance is more stable and the treble is louder, thereby stretching the frequency bandwidth and reducing distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is an exploded structural diagram of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the magnetic circuit assembly;

[0017] Figure 4 is an exploded structural diagram of the magnetic circuit assembly;

[0018] Figure 5 is a cross-sectional schematic view of the structure of the magnetic circuit assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0020] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model.

[0021] Some embodiments of the present utility model will be described below in conjunction with the accompanying drawings.

[0022] Referring to Figures 1 to 5 , a loudspeaker with high-fidelity sound effect, a magnetic circuit assembly is arranged in the loudspeaker. The magnetic circuit assembly includes a first magnetic element 1, a second magnetic element 2, a first washer 3, and a T-shaped iron 4 with a T-shaped cross-section. The lower end of the first magnetic element 1 is connected to the upper side of the first washer 3, and the upper end of the second magnetic element 2 is connected to the lower side of the first washer 3; the T-shaped iron 4 has a base 41 and a magnetic conduction column 42 protruding upward from the center of the base 41. The lower end of the second magnetic element 2 is connected to the upper side of the magnetic conduction column 42, and an annular magnet 5 is installed at the upper end of the base 41. After assembly, the annular magnet 5 wraps the sides of the second magnetic element 2 and the magnetic conduction column 42, so that the magnetization directions of the first magnetic element 1 and the second magnetic element 2 respectively face the first washer 3. In this embodiment, the annular magnet 5 can suppress the leakage of the magnetic field, make the magnetization directions of the first magnetic element 1 and the second magnetic element 2 gather on the first washer 3, forming a surrounding effect of the four-sided magnetic field. In this way, the magnetic field is more concentrated, the volume of the loudspeaker is larger, and the distortion is smaller.

[0023] Specifically, referring to Figure 5 , the magnetization direction of the first magnetic element 1 is A, the magnetization direction of the second magnetic element 2 is B, the magnetization direction of the annular magnet 5 is C. The magnetization directions A and B are opposite, and the magnetization directions A and B are respectively perpendicular to the first washer 3. The annular magnet 5 is configured to suppress the leakage of the magnetic field intensity, and the magnetization direction C is parallel to the magnetization directions A and B, effectively avoiding the leakage of the magnetic field intensity.

[0024] The thickness of the first magnetic element 1 is greater than the thickness of the second magnetic element 2 or the first washer 3, preventing the magnetic force of the second magnetic element 2 from leaking, thereby increasing the magnetic field strength.

[0025] A shielding filter screen is installed in the magnetic circuit assembly. The magnetic circuit assembly is provided with a through hole penetrating the first magnetic element 1, the second magnetic element 2, the first washer 3, and the T-shaped iron 4. After assembly, the shielding filter screen is installed in the through hole. The shielding filter screen can filter out clutter and signal interference, making the sound quality of the loudspeaker cleaner and purer.

[0026] A second washer 51 is installed at the upper end of the annular magnet 5. An annular magnetic circuit gap is formed between the first washer 3 and the second washer 51, and a voice coil 6 is installed in the magnetic circuit gap. Specifically, the voice coil 6 is suspended in the magnetic circuit gap, and the shielding filter screen is installed inside the voice coil 6, which can further filter out clutter and signal interference.

[0027] In this embodiment, an adhesive connection structure is adopted between the first magnetic element 1, the second magnetic element 2, the first washer 3, the T-iron 4, the second washer 51 and the annular magnet 5, which is simple and convenient to assemble and has high production efficiency.

[0028] The loudspeaker includes a speaker frame 7, the lower end of the speaker frame 7 is installed on the upper end of the second washer 51, a conical diaphragm 71 is installed in the speaker frame 7. After assembly, the lower end of the conical diaphragm 71 is connected to the upper end of the voice coil 6. A plurality of screw holes are provided on the second washer 51, and mounting holes corresponding to the screw holes are provided at the lower end of the speaker frame 7. After assembly, screws pass through the mounting holes and are threadedly connected to the screw holes. A spider 61 is installed between the conical diaphragm 71 and the voice coil 6, and the assembly is simple.

[0029] A conical cover 72 is installed at the center of the conical diaphragm 71, a first diaphragm ring 73 is sleeved outside the conical cover 72, and a second diaphragm ring 74 is provided at the upper end edge of the conical diaphragm 71. After assembly, the top of the conical cover 72 is higher than the top of the second diaphragm ring 74. In this embodiment, the loudspeaker is provided with one conical cover and two diaphragm rings. When in use, the bass performance is more stable, the treble is louder, thereby stretching the frequency bandwidth and making the sound effect more faithful.

[0030] In the present utility model, the term "a plurality of" means two or more unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "arranged on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0032] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A loudspeaker with high-fidelity sound effect, wherein a magnetic circuit component is arranged inside the loudspeaker, characterized in that The magnetic circuit assembly includes a first magnetic element (1), a second magnetic element (2), a first washer (3), and a T-shaped iron (4) with a T-shaped cross-section. The lower end of the first magnetic element (1) is connected to the upper side of the first washer (3), and the upper end of the second magnetic element (2) is connected to the lower side of the first washer (3). The T-shaped iron (4) has a base (41) and a magnetic conduction column (42) protruding upward from the center of the base (41). The lower end of the second magnetic element (2) is connected to the upper side of the magnetic conduction column (42). An annular magnet (5) is installed at the upper end of the base (41). After assembly, the annular magnet (5) wraps the sides of the second magnetic element (2) and the magnetic conduction column (42), so that the magnetization directions of the first magnetic element (1) and the second magnetic element (2) face the first washer (3).

2. The loudspeaker with high-fidelity sound according to claim 1, characterized in that The thickness of the first magnetic element (1) is greater than the thickness of the second magnetic element (2) or the first washer (3).

3. The loudspeaker with high-fidelity sound according to claim 1, characterized in that A shielding filter screen is installed inside the magnetic circuit assembly. The magnetic circuit assembly is provided with a through hole penetrating the first magnetic element (1), the second magnetic element (2), the first washer (3), and the T-shaped iron (4). After assembly, the shielding filter screen is installed in the through hole.

4. The loudspeaker with high-fidelity sound according to claim 1, characterized in that A second washer (51) is installed at the upper end of the annular magnet (5). An annular magnetic circuit gap is formed between the first washer (3) and the second washer (51), and a voice coil (6) is installed in the magnetic circuit gap.

5. The loudspeaker with high-fidelity sound according to claim 4, characterized in that The loudspeaker includes a speaker frame (7). The lower end of the speaker frame (7) is installed at the upper end of the second washer (51). A conical diaphragm (71) is installed inside the speaker frame (7). After assembly, the lower end of the conical diaphragm (71) is connected to the upper end of the voice coil (6), and a spider (61) is installed between the conical diaphragm (71) and the voice coil (6).

6. The loudspeaker with high-fidelity sound according to claim 5, characterized in that A conical cover (72) is installed at the center of the conical diaphragm (71). A first diaphragm ring (73) is sleeved outside the conical cover (72). A second diaphragm ring (74) is arranged at the upper end edge of the conical diaphragm (71). After assembly, the top of the conical cover (72) is higher than the top of the second diaphragm ring (74).

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