Loudspeaker capable of enhancing low frequency

Abstract

The utility model discloses a loudspeaker for enhancing low frequency, which comprises a shell and a sounding unit, a mounting cavity is arranged in the shell, an opening is arranged on one side of the shell, a sound outlet hole is arranged on one side of the shell opposite to the opening, the opening and the sound outlet hole are communicated with the mounting cavity, the sounding unit is arranged in the mounting cavity, and the sounding unit is close to the opening and faces the opening. According to the loudspeaker, the sound outlet hole communicated with the mounting cavity is formed in the back of the mounting shell, so that the reflection and interference phenomena of low-frequency sound waves are reduced, the low-frequency sound is clearer and stronger, and the effect of enhancing the low frequency of the loudspeaker is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker capable of enhancing low frequencies. Background Art

[0002] Speakers are an important component in audio systems. They are usually composed of components such as a housing, a magnet, a voice coil and a diaphragm. They can convert electrical signals into sound and are used in various scenarios to provide high-quality audio experience.

[0003] In the prior art, the magnet is installed in a shell, which is usually semi-enclosed and has only one side with an installation opening to install the diaphragm and the voice coil. The sound is emitted from the diaphragm at the installation opening. Since the wavelength of low-frequency sound is longer, the reflection and interference of low-frequency sound waves inside the shell will increase, resulting in poor low-frequency effect. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a speaker for enhancing low frequencies, comprising:

[0005] A housing having an installation cavity therein, an opening formed on one side of the housing, and a sound outlet hole formed on a side opposite to the opening, wherein the opening and the sound outlet hole are both connected to the installation cavity; and

[0006] The sound unit is arranged in the installation cavity, close to the opening and facing the opening.

[0007] According to one embodiment of the utility model, the shell includes a shell and a cover body, the installation cavity is located in the shell, a mounting port is provided on one side of the shell, the mounting port is connected to the installation cavity, the sound outlet is opened on the side of the shell opposite to the mounting port, the cover body covers the mounting port, the opening is opened in the cover body, the generating unit is arranged in the installation cavity, and one end of the generating unit is exposed outside the mounting port and faces the opening.

[0008] According to one embodiment of the utility model, the shell includes an installation section and an echo part, the installation cavity is located in the installation section, the installation port is opened at one end of the installation section, the echo part is located at the end of the installation section facing away from the installation port, the echo part protrudes outwardly away from the installation end, the echo part has an echo cavity, the sound outlet hole is opened at the end of the echo part facing away from the installation section, and the echo cavity is respectively connected with the installation cavity and the sound outlet hole.

[0009] According to an embodiment of the present invention, the cross section of the installation section is circular, and the cross section of the echo portion is semicircular.

[0010] According to one embodiment of the utility model, a sound receiving boss is further provided on the inner wall of the echo chamber, which is located at one end of the sound outlet and protrudes toward the inside of the echo chamber. The sound receiving boss has a sound receiving hole that runs through the sound receiving boss, and both ends of the sound receiving hole are respectively connected to the sound outlet and the echo chamber.

[0011] According to an embodiment of the present invention, the diameter of the sound receiving hole gradually decreases from an end thereof far from the sound outlet hole toward an end thereof close to the sound outlet hole.

[0012] According to one embodiment of the present invention, the aperture of the sound receiving hole away from the sound output hole is D1, the aperture of the sound receiving hole close to the sound output hole is D2, and the aperture of the sound output hole is D3, wherein the aperture D1 is larger than the aperture D2, and the aperture D2 is equal to the aperture D3.

[0013] According to an embodiment of the utility model, the shell is further provided with a plurality of connection platforms, which are arranged circumferentially along the outer wall of the shell, and each connection platform is provided with a connection through hole along the axial direction of the connection platform.

[0014] According to an embodiment of the present invention, one end of the shell body close to the cover body has a wiring notch, and when the cover body is covered on the shell body, the cover body and the wiring notch form a wiring hole.

[0015] The beneficial effect of the utility model is that by arranging the sound outlet hole on the back of the shell, the reflection and interference of low-frequency sound waves are reduced, the low-frequency sound is made clearer and stronger, and the speaker achieves the effect of enhancing the low frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A schematic diagram of a speaker structure for enhancing low frequencies in an embodiment;

[0018] Figure 2 A schematic diagram of a loudspeaker explosion structure for enhancing low frequencies in an embodiment;

[0019] Figure 3 is a longitudinal cross-sectional view of the housing in the embodiment;

[0020] Figure 4 for Figure 3 Enlarged view of part B in the middle. DETAILED DESCRIPTION

[0021] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0022] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] See also Figure 1-Figure 2 , Figure 1 This is a schematic diagram of the structure of a loudspeaker for enhancing low frequencies in an embodiment. Figure 2 Schematic diagram of the structure of the loudspeaker for enhancing low frequency in the embodiment. A loudspeaker for enhancing low frequency in this embodiment comprises a housing 1 and a sound unit 2, wherein the housing 1 has an installation cavity 1111 inside, an opening 121 is provided on one side of the housing 1, and a sound outlet 1122 is provided on the side facing away from the opening 121, the opening 121 and the sound outlet 1122 are both connected to the installation cavity 1111, the sound unit 2 is installed in the installation cavity 1111, and the sound unit 2 is close to the opening 121 and faces the opening 121, and in this embodiment, the sound unit 2 is composed of components such as a magnet, a voice coil and a diaphragm.

[0024] In this example, by setting a sound outlet 1122 on the back of the housing 1, the reflection and interference of low-frequency sound waves are reduced, making the low-frequency sound clearer and stronger, thereby enabling the speaker to achieve the effect of enhancing the low frequency.

[0025] Review Figure 1-Figure 2 Specifically, the housing 1 includes a shell 11 and a cover 12, an installation cavity 1111 is located in the shell 11, a mounting port 1112 is provided on one side of the shell 11, the mounting port 1112 is connected to the installation cavity 1111, a sound outlet 1122 is opened on a side of the shell 11 facing away from the mounting port 1112, the cover 12 covers the mounting port 1112, an opening 121 is opened in the cover 12, and the sound unit 2 is arranged in the installation cavity 1111, one end of which is exposed outside the mounting port 1112 and faces the opening 121.

[0026] The housing 11 includes a mounting section 111 and an echo portion 112. The mounting cavity 1111 is located in the mounting section 111. The mounting opening 1112 is opened at one end of the mounting section 111. The echo portion 112 is located at one end of the mounting section 111 facing away from the mounting opening 1112. The echo portion 112 protrudes outwardly away from the mounting end. The echo portion 112 has an echo cavity 1121 in it. The sound outlet 1122 is opened at one end of the echo portion 112 facing away from the mounting section 111. The echo cavity 1121 is respectively connected to the mounting cavity 1111 and the sound outlet 1122. By providing the echo cavity 1121, the volume of the cavity in the housing is increased, the interference of low-frequency sound waves is further reduced, and the low-frequency effect is enhanced.

[0027] Preferably, the cross-section of the mounting section 111 is circular, the cross-section of the echo portion 112 is semicircular, and the mounting section 111 and the echo portion 112 are arranged in a stepped manner. In this way, the echo cavity 1121 can reduce the interference of low-frequency sound waves while preventing the low-frequency sound waves from being distorted due to excessive reflection effects caused by the large cavity, thereby ensuring the enhanced low-frequency effect.

[0028] See also Figure 3-Figure 4 , review Figure 1-Figure 2 , Figure 3 This is a longitudinal cross-sectional view of the shell in the embodiment, Figure 4 for Figure 3 Further, the inner wall of the echo chamber 1121 is provided with a sound receiving boss 1122, which is located at one end of the sound outlet hole 1121 and protrudes into the echo chamber 1121, and the sound receiving boss 1122 has a sound receiving hole 11221 which penetrates the sound receiving boss 1122, and the two ends of the sound receiving hole 11221 are respectively connected with the sound outlet hole 1121 and the echo chamber 1121.

[0029] The aperture of the sound receiving hole 11221 gradually decreases from the end away from the sound outlet hole 1121 to the end close to the sound outlet hole 1121. Specifically, the aperture of the end of the sound receiving hole 11221 away from the sound outlet hole 1121 is D1, the aperture of the end close to the sound outlet hole 1121 is D2, and the aperture of the sound outlet hole 1121 is D3, wherein the aperture D1 is greater than the aperture D2, and the aperture D2 is equal to the aperture D3. In this way, the sound wave emission loss can be effectively reduced, the emitted sound can be more concentrated and focused, the energy density of the sound can be improved, and at the same time, the echo and resonance of the sound can be reduced, and the clarity and sound quality of the sound can be improved.

[0030] Review Figure 1-Figure 2Furthermore, the housing 1 is further provided with a plurality of connection platforms 1113, which are arranged circumferentially along the outer wall of the housing 1, and each connection platform 1113 is provided with a connection through hole 11131 along the axial direction of the connection platform 1113. Specifically, the connection platform 1113 is provided on the outer wall of the installation section 111. In a specific implementation, a screw can be inserted through the connection through hole 11131 to fix the connection platform 1113 at a preset position, thereby realizing the installation of the speaker.

[0031] Review Figure 1-Figure 3 Furthermore, one end of the housing close to the cover has a wiring notch 113. When the cover 12 covers the housing 11, the cover 12 and the wiring notch 113 form a wiring hole. In specific implementation, a connecting wire can be led out through the wiring hole 13 to facilitate the connection between the speaker and the output device.

[0032] In summary, in this example, by setting the sound outlet 1122 on the back of the shell 1, the reflection and interference of low-frequency sound waves are reduced, making the low-frequency sound clearer and stronger, thereby enabling the speaker to achieve the effect of enhancing the low frequency.

[0033] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A speaker for enhancing low frequencies, characterized in that: include: A housing (1) having an installation cavity (1111) therein; an opening (121) is provided on one side of the housing (1); a sound outlet hole (1122) is provided on the side facing away from the opening (121); the opening (121) and the sound outlet hole (1122) are both connected to the installation cavity (1111); and The sound-generating unit (2) is arranged in the installation cavity (1111), close to the opening (121) and facing the opening (121).

2. The low-frequency enhanced loudspeaker according to claim 1, characterized in that: The housing (1) comprises a shell (11) and a cover (12); the installation cavity (1111) is located in the shell (11); a mounting opening (1112) is provided on one side of the shell (11); the mounting opening (1112) is connected to the installation cavity (1111); the sound outlet (1122) is provided on a side of the shell (11) facing away from the mounting opening (1112); the cover (12) covers the mounting opening (1112); the opening (121) is provided in the cover (12); the sound unit (2) is arranged in the installation cavity (1111); one end of the sound unit (2) is exposed outside the mounting opening (1112) and faces the opening (121).

3. The low-frequency enhanced loudspeaker according to claim 2, characterized in that: The housing (11) comprises a mounting section (111) and an echo portion (112); the mounting cavity (1111) is located in the mounting section (111); the mounting opening (1112) is opened at one end of the mounting section (111); the echo portion (112) is located at one end of the mounting section (111) facing away from the mounting opening (1112); the echo portion (112) protrudes outwardly away from the mounting section (111); an echo cavity (1121) is provided in the echo portion (112); the sound outlet (1122) is opened at one end of the echo portion (112) facing away from the mounting section (111); and the echo cavity (1121) is communicated with the mounting cavity (1111) and the sound outlet (1122) respectively.

4. The low-frequency enhanced loudspeaker according to claim 3, characterized in that: The cross section of the installation section (111) is circular, and the cross section of the echo portion (112) is semicircular.

5. The low-frequency enhanced loudspeaker according to claim 4, characterized in that: The inner wall of the echo chamber (1121) is also provided with a sound receiving boss (1123), which is located at one end of the sound outlet hole (1122) and protrudes toward the inside of the echo chamber (1121); the sound receiving boss (1123) has a sound receiving hole (11231) which passes through the sound receiving boss (1123); and the two ends of the sound receiving hole (11231) are respectively connected to the sound outlet hole (1122) and the echo chamber (1121).

6. The low-frequency enhanced loudspeaker according to claim 5, characterized in that: The aperture of the sound receiving hole (11231) gradually decreases from an end thereof far from the sound output hole (1122) toward an end thereof close to the sound output hole (1122).

7. The low-frequency enhanced loudspeaker according to claim 6, characterized in that: The aperture of the sound receiving hole (11231) at the end away from the sound output hole (1122) is D1, and the aperture of the end close to the sound output hole (1122) is D2. The aperture of the sound output hole (1122) is D3, wherein the aperture D1 is larger than the aperture D2, and the aperture D2 is equal to the aperture D3.

8. The low-frequency enhanced loudspeaker according to claim 1, characterized in that: The housing (1) is further provided with a plurality of connection platforms (1113), the plurality of connection platforms (1113) being arranged circumferentially along the outer wall of the housing (1), and each connection platform (1113) being provided with a connection through hole (11131) along the axial direction of the connection platform (1113).

9. The low-frequency enhanced loudspeaker according to claim 2, characterized in that: One end of the shell (11) close to the cover (12) is provided with a wiring notch (113); when the cover (12) is covered on the shell (11), the cover (12) and the wiring notch (113) form a wiring hole.

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