Sound guide structure for reducing sound resonance

Abstract

The utility model provides a sound guide structure for reducing sound resonance, which comprises a sound guide channel, the sound guide channel is arranged in a box body of a sound box, a sound production device is arranged in the box body, sound produced by the sound production device is spread out of the box body through the sound guide channel, a baffle is arranged in the sound guide channel, one end of the baffle is connected with the inner wall of one end of the box body, and the other end of the baffle is connected with the sound resonance. The other end of the baffle plate extends towards the other end of the box body; more than one reinforcing bulge which is sequentially arranged along the sound transmission path direction of the sound guide channel is arranged on the two side surfaces of the baffle plate; according to the structure of the utility model, the sound guide channel is arranged, so that sound emitted by the sound emitting device can be mixed, resonance can be reduced, the sound emitting definition of the sound box is higher, and the strength of the sound guide channel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a sound guide structure for reducing sound resonance. Background Art

[0002] A speaker is a device that converts electrical signals into sound signals and is an extremely important component of the audio system. It uses the power amplifier built into the box to amplify the audio signal and then plays back the sound through the speaker itself, making the sound louder.

[0003] For example, the patent document with Chinese patent application number 201710426381.3 and publication date 2018.12.18 discloses a high-definition speaker cabinet, which guides the sound emitted from the rear of the speaker and transmits it to the outside of the cabinet by setting a channel inside the cabinet.

[0004] The setting of the channel can extend the sound propagation path, so that the sound can be mixed, thereby improving the clarity of pronunciation. However, as in the prior art of this document, it only sets up a sound propagation channel. As a result, when the sound propagates, the partitions on the propagation channel will vibrate due to the high and low notes. On the one hand, the partitions will be damaged. On the other hand, if the vibration frequency of the partitions is the same as the high and low notes, sound resonance will occur, which will eventually lead to the deterioration of the sound quality and the reduction of pronunciation clarity. Summary of the Invention

[0005] The utility model provides a sound guide structure for reducing sound resonance. By setting a sound guide channel, the sound emitted by a sound producing device can be mixed and the resonance can be reduced, so that the sound box has higher pronunciation clarity and the strength of the sound guide channel is improved.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a sound guide structure for reducing sound resonance, including a sound guide channel, wherein the sound guide channel is arranged in the box of the speaker, and a sound producing device is provided in the box. The sound emitted by the sound producing device is transmitted to the outside of the box through the sound guide channel, and a baffle is provided in the sound guide channel, wherein one end of the baffle is connected to the inner wall of one end of the box, and the other end of the baffle extends toward the other end of the box, and one or more reinforcing protrusions are provided on both side surfaces of the baffle and arranged in sequence along the sound propagation path direction of the sound guide channel.

[0007] The above setting sets up a sound guide channel so that the sound emitted from the back of the sound-producing device is mixed in the box, and then the sound is transmitted to the outside of the speaker through the sound guide channel. Since a baffle is set in the sound guide channel, the sound will be blocked by the baffle when it is transmitted in the sound guide channel, thereby changing the transmission path, making the sound transmission time longer and the transmission path longer, so that it can ensure that the sound can be further mixed in the sound guide channel, and since a reinforcing protrusion is also provided on the baffle, part of the sound will be emitted by the reinforcing protrusion when it propagates in the sound guide channel, thereby changing the propagation path, so that not only the sound emitted by the sound-producing device can be mixed, but also the sound resonance can be reduced, thereby ensuring that the output sound can be enhanced and the pronunciation clarity of the speaker is improved. At the same time, the reinforcing protrusion can also strengthen the strength of the baffle to prevent the sound-producing device from damaging the baffle.

[0008] Furthermore, the baffle is arranged in the direction of the sound inlet end close to the sound guide channel.

[0009] The above arrangement can guide the sound entering the sound guide channel by arranging the baffle near the sound inlet end of the sound guide channel.

[0010] Furthermore, it also includes a second baffle, which is provided in the direction of the sound output end close to the sound guide channel, one end of the second baffle is connected to the inner wall of the other end of the box, and the other end of the second baffle extends toward one end of the box close to the sound input end of the sound guide channel. The baffle and the second baffle are staggered to form a sound output channel between the second baffle and the interior of one side of the box.

[0011] The above arrangement, by adding the second baffle, makes the transmission path and transmission time of the sound longer, thereby further increasing the mixing time of the sound and thus improving the clarity.

[0012] Furthermore, one or more reinforcement protrusions are provided on the second baffle and are arranged in sequence along the direction of the sound propagation path of the sound guide channel.

[0013] The above arrangement, through the arrangement of the reinforcing protrusions, enables part of the sound to be emitted by the reinforcing protrusions when the sound propagates in the sound guide channel, thereby changing the propagation path and reducing the resonance of the sound.

[0014] Furthermore, the reinforcement protrusion is provided to protrude upward from the side surface of the baffle, and the end portion of the reinforcement protrusion is provided in an arc shape.

[0015] The above arrangement, through the arrangement of the curved surface, enables a larger angle of sound reflection, thereby facilitating reduction of sound resonance and better mixing of sounds.

[0016] Furthermore, a mounting groove is provided in the center of the box body, a top cover is provided above the mounting groove, a cavity is formed between the mounting groove and the top cover, a sound guide channel is provided on one side of the cavity, a sound inlet is provided on the side of the sound guide channel close to the cavity, a sound outlet corresponding to the sound outlet channel is provided on the top cover, and the sound-producing device is arranged in the cavity.

[0017] The above arrangement facilitates mixing of the sounds emitted by the tweeter and the woofer through the arrangement of the cavity.

[0018] Furthermore, the top cover is provided with a through hole for placing the sound-producing device.

[0019] The above arrangement facilitates the installation of the pronunciation device.

[0020] Furthermore, mounting posts are provided around the sound guide, and mounting holes are provided on the top cover at positions corresponding to the mounting posts.

[0021] The above arrangement facilitates fixing the top cover to the box body through the fixing pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the utility model applied to a speaker.

[0023] Figure 2 for Figure 2 Enlarged view of point A in the middle.

[0024] Figure 3 A schematic diagram of the structure for placing the top cover on the speaker. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Example 1.

[0027] like Figure 1-3 As shown, a sound guide structure for reducing sound resonance includes a sound guide channel 1, wherein the sound guide channel 1 is arranged in a sound box 21, and a sound producing device is provided in the sound box 21. In this embodiment, the sound producing device includes a tweeter and a woofer, and the sound emitted by the sound producing device is transmitted to the outside of the sound box 21 through the sound guide channel 1. A baffle 11 is provided in the sound guide channel 1, and a baffle 11 is provided in the direction of the sound inlet end close to the sound guide channel 1. One end of the baffle 11 is connected to the inner wall of one end of the sound box 21, and the other end of the baffle 11 extends toward the other end of the sound box 21 so that the sound guide channel 1 forms a C-shaped channel. One or more reinforcing protrusions 12 are arranged in sequence along the sound propagation path direction of the sound guide channel 11 on the baffle 11.

[0028] The reinforcement protrusion 12 is provided to protrude outward from the side of the baffle, and the end face of the reinforcement protrusion 12 is a curved surface. The arrangement of the curved surface makes the angle of sound reflection larger, thereby facilitating reduction of sound resonance and better mixing of sounds.

[0029] like Figure 1 As shown, a mounting slot 22 is provided in the center of the box body 21, a top cover 23 is provided above the mounting slot 22, a cavity 20 is formed between the mounting slot 22 and the top cover 23, a sound guide channel 1 is provided on one side of the cavity 20, a sound inlet 13 is provided on the side of the sound guide channel 1 close to the cavity 20, a sound outlet 24 corresponding to the sound outlet end of the sound guide channel 1 is provided on the top cover 23, and a tweeter and a woofer are provided in the cavity 20. The provision of the cavity 20 facilitates mixing of the sounds emitted by the tweeter and the woofer.

[0030] Figure 1 As shown, mounting posts 10 are provided around the sound guide channel 1, and mounting holes 230 corresponding to the mounting posts are provided on the top cover. The top cover is fixed to the box body by screws passing through the mounting posts 10 and the mounting holes 230.

[0031] In addition, in this embodiment, a through hole 232 is provided on the top cover for placing the sound-generating device on the box through the through hole 232 .

[0032] The working principle of the present invention is as follows: by setting up a sound guide channel 1, the sound emitted from the back of the sound producing device is mixed in the box body 21, and then the sound is transmitted to the outside of the speaker through the sound guide channel 1. Since a baffle 11 is set in the sound guide channel 1, the sound will be blocked by the baffle 11 when it is transmitted in the sound guide channel 1, thereby changing the transmission path, making the sound transmission time longer and the transmission path longer, so that it can be ensured that the sound can be further mixed in the sound guide channel, and since a reinforcing protrusion 12 is also provided on the baffle 11, part of the sound will be emitted by the reinforcing protrusion 12 when it propagates in the sound guide channel 1, thereby changing the transmission path, so that not only the sound emitted by the sound producing device can be mixed, but also the sound resonance can be reduced, thereby ensuring that the output sound can be enhanced, improving the pronunciation clarity of the speaker, and at the same time ensuring the strength of the baffle.

[0033] Example 2.

[0034] In this embodiment, if Figure 2As shown, the other structures are the same as those of Example 1, except that: a second baffle 14 is further included, and a second baffle 14 is provided in the direction of the sound output end near the sound guide channel 1. One end of the second baffle 14 is connected to the inner wall of the other end of the box body 21, and the other end of the second baffle 14 extends toward the end of the box body 21 near the sound input end of the sound guide channel 1. The sound guide channel 1 forms an S-shaped channel through the arrangement of the baffle 11 and the second baffle 14, and a sound output channel 15 is formed between the second baffle 14 and the interior of one side of the box body 21. The above arrangement, by adding the second baffle 14, makes the sound transmission path and transmission time longer, thereby further increasing the mixing time of the sound, thereby improving the clarity.

[0035] One or more reinforcement protrusions 12 are arranged in sequence along the sound propagation path of the sound guide channel 1 on the second baffle 14. By providing the reinforcement protrusions 12, when the sound propagates in the sound guide channel, part of the sound is emitted by the reinforcement protrusions 12, thereby changing the propagation path and reducing the resonance of the sound.

Claims

1. A sound guide structure for reducing sound resonance, comprising a sound guide channel disposed within a sound box, wherein a sound producing device is disposed within the box, and the sound produced by the sound producing device is transmitted to the outside of the box through the sound guide channel, characterized in that: A baffle is provided in the sound guide channel, one end of the baffle is connected to the inner wall of one end of the box, and the other end of the baffle extends toward the other end of the box. There is one or more reinforcing protrusions arranged in sequence along the sound propagation path direction of the sound guide channel on both side surfaces of the baffle.

2. The sound guide structure for reducing sound resonance according to claim 1, characterized in that: The baffle is arranged in the direction of the sound inlet end close to the sound guide channel.

3. The sound guide structure for reducing sound resonance according to claim 1, characterized in that: It also includes a second baffle, which is provided in the direction of the sound output end close to the sound guide channel, one end of the second baffle is connected to the inner wall of the other end of the box, and the other end of the second baffle extends toward one end of the box close to the sound input end of the sound guide channel. The baffle and the second baffle are staggered to form a sound output channel between the second baffle and the interior of one side of the box.

4. The sound guide structure for reducing sound resonance according to claim 3, characterized in that: One or more reinforcement protrusions are arranged in sequence along the sound propagation path of the sound guide channel on the second baffle.

5. A sound guide structure for reducing sound resonance according to claim 1 or 4, characterized in that: The reinforcement protrusion is arranged to protrude upward from the side surface of the baffle, and the end of the reinforcement protrusion is arranged in an arc shape.

6. The sound guide structure for reducing sound resonance according to claim 1, characterized in that: A mounting groove is provided in the center of the box body, a top cover is provided above the mounting groove, a cavity is formed between the mounting groove and the top cover, a sound guide channel is provided on one side of the cavity, a sound inlet is provided on the side of the sound guide channel close to the cavity, a sound outlet corresponding to the sound outlet channel is provided on the top cover, and the sound-producing device is arranged in the cavity.

7. The sound guide structure for reducing sound resonance according to claim 6, characterized in that: The top cover is provided with a through hole for placing the sound-producing device.

8. The sound guide structure for reducing sound resonance according to claim 6, characterized in that: The sound guide is provided with mounting posts around it, and the top cover is provided with mounting holes at positions corresponding to the mounting posts.

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