Backlash horn type bass tone sound box structure

Abstract

The utility model belongs to the technical field of sound equipment, and provides a recoil horn type bass tone sound box structure, which comprises a sound box body, a horn assembly, a support frame and a flexible piece, the support frame is arranged in the sound box body, and the loudspeaker assembly is fixed on the support frame; the flexible part is arranged in the sound box body; the loudspeaker assembly comprises a first loudspeaker device and a vibration device. Vibration force generated by the first loudspeaker device and vibration force generated by the vibration device are located on the same axis and are opposite in direction. The sound output end of the first loudspeaker device is connected with the flexible piece. When the first loudspeaker device and the vibration device work together, vibration force generated by the first loudspeaker device and the vibration device is located on the same axis and opposite in direction due to the fact that no external force exists, momentum between the first loudspeaker device and the vibration device exchanges, and therefore the total momentum is zero, and the vibration effect is good. And momentum conservation is constant. Through the two points, loudspeaker vibration can be eliminated, and recoil can be counteracted.

Description

Technical Field

[0001] The utility model belongs to the technical field of audio, and in particular relates to a recoil horn type bass sound box structure. Background Art

[0002] When the speaker is working, the voice coil inside the elastic wave drives the elastic wave to make the paper cone vibrate. When the paper cone vibrates forward, the air density in front becomes larger, and the air will go around to the place with less air density in the back to circulate and fill, forming a closed loop flow that tends to be uniform. At the same time, the sound waves move in the opposite direction of the paper cone. When the sound waves meet to form a loop, they will cancel each other out. The interference of the sound waves makes the sound very low. When playing a bass song, you will hear a lot of noise when your ears are close to the speaker, but you can only hear a little bit of the human voice. This phenomenon is a sound short circuit.

[0003] With the emergence of speakers, the box isolates the front and back of the speaker cone, so that the vibrating sound waves cannot form a closed loop, solving the problem of sound waves canceling each other out and preventing sound short circuits. Although the speaker is rigidly connected to the speaker box to prevent sound short circuits, the speaker's own vibration kinetic energy acts on the speaker box, causing the speaker box to vibrate, and resonance reduces the sound quality. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a recoil horn type bass dyed sound box structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A recoil horn type bass dyeing sound box structure, comprising:

[0007] Sound box, speaker assembly, support frame and flexible parts;

[0008] The support frame is arranged in the sound box, and the speaker assembly is fixed to the support frame;

[0009] The flexible member is arranged on the sound box;

[0010] The speaker assembly comprises a first speaker device and a vibration device, wherein the vibration force generated by the first speaker device and the vibration force generated by the vibration device are on the same axis and in opposite directions;

[0011] The sound output end of the first speaker device is connected to the flexible member.

[0012] Preferably, the sound box is provided with a sound outlet portion in an open structure, the sound outlet portion is provided with a first groove, and the flexible member cooperates with the first groove.

[0013] Preferably, the flexible member is provided in a ring on the end surface and the outer periphery of the sound output end of the first speaker device.

[0014] Preferably, the flexible member is an annular ring structure with an L-shaped cross section.

[0015] Preferably, the support frame is disposed in the cavity of the audio box and is integrally formed with the audio box.

[0016] Preferably, the support frame is provided with a mounting portion, and the mounting portion is used for fixing and mounting the speaker assembly.

[0017] Preferably, the vibration device is a second speaker device having the same structure as the first speaker device, and the sound output portion of the first speaker device and the sound output portion of the second speaker device are arranged on the same axis and are arranged away from each other.

[0018] Preferably, the vibration device is a spring-type voice coil motor.

[0019] Preferably, the audio box is provided with an interface cover, and the interface cover is provided with an interface member.

[0020] Compared with the prior art, the beneficial effects of the utility model include:

[0021] The structure of the recoil horn-type bass-dyeing sound box structure designed in this embodiment is that the support frame fixes the horn assembly in the sound box, and the sound output end of the horn assembly is connected to the flexible member, and the flexible member is used to achieve a flexible connection structure to reduce the up and down amplitudes caused by the sound wave resonance at the sound output end of the horn assembly. At the same time, since the horn assembly includes a first horn device and a vibration device, and the vibration force generated by the first horn device and the vibration force generated by the vibration device are on the same axis and in opposite directions, when the first horn device and the vibration device work together, because there is no external force, the vibration forces generated by the two are on the same axis and in opposite directions, and the momentum between the first horn device and the vibration device is exchanged, so the total momentum is zero, and the momentum is conserved. The above two points can eliminate the vibration of the horn and offset the recoil force. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2It is a schematic diagram of the internal structure of the utility model.

[0025] Figure 3 It is a force diagram of the speaker assembly of the utility model.

[0026] in:

[0027] 1-sound box, 2-first speaker device, 3-support frame, 4-flexible member, 5-second speaker device, 6-first groove, 7-installation part, 8-interface cover, 9-interface member. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Example:

[0031] like Figure 1-2 As shown, in this embodiment, a recoil horn type bass sound box structure is provided, comprising:

[0032] Sound box 1, speaker assembly, support frame 3 and flexible member 4;

[0033] The support frame is arranged in the sound box 1, and the speaker assembly is fixed to the support frame;

[0034] The flexible member 4 is arranged on the sound box 1;

[0035] The speaker assembly includes a first speaker device 2 and a vibration device, wherein the vibration force generated by the first speaker device 2 and the vibration force generated by the vibration device are on the same axis and in opposite directions;

[0036] The sound output end of the first speaker device 2 is connected to the flexible member 4 .

[0037] The structure of the recoil horn-type bass sound box structure designed in this embodiment is that the support frame fixes the horn assembly in the sound box 1, and the sound output end of the horn assembly is connected to the flexible member 4. The flexible member 4 is used to achieve a flexible connection structure to reduce the up and down amplitudes caused by the sound wave resonance at the sound output end of the horn assembly. At the same time, since the horn assembly includes a first horn device 2 and a vibration device, and the vibration force generated by the first horn device 2 and the vibration force generated by the vibration device are on the same axis and in opposite directions, when the first horn device 2 and the vibration device work together, because there is no external force, the vibration forces generated by the two are on the same axis and in opposite directions, and the momentum between the first horn device 2 and the vibration device is exchanged, so the total momentum is zero, and the momentum is conserved. The above two points can eliminate the vibration of the horn and offset the recoil force.

[0038] In this embodiment, the flexible member 4 can be made of PU foam, EVA foam, composite pearl cotton, sponge, rubber and the like.

[0039] In this embodiment, regarding the installation structure of the flexible member 4 and the sound box 1 , specifically, the sound box 1 is provided with a sound outlet portion in an open structure, the sound outlet portion is provided with a first groove 6 , and the flexible member 4 cooperates with the first groove 6 .

[0040] Specifically, the flexible member 4 is disposed around the end surface and the outer periphery of the sound output end of the first speaker device 2 .

[0041] Specifically, the flexible member 4 is an annular ring structure with an L-shaped cross section.

[0042] Specifically, the support frame is disposed in the cavity of the sound box 1 and is integrally formed with the sound box 1 .

[0043] Specifically, a mounting portion 7 is provided on the support frame, and the mounting portion 7 is used for fixing and mounting the speaker assembly.

[0044] The present embodiment is easy to assemble. Specifically, during assembly, the flexible member 4 is nested into the first groove 6, and then the sound output end of the first speaker device 2 is inserted into the flexible member 4. The mounting portion 7 is a through-hole structure, and the speaker assembly cooperates with the mounting portion 7, so the installation method is simple.

[0045] In this embodiment, the vibration device is a second speaker device 5 having the same structure as the first speaker device 2. The sound outlet of the first speaker device 2 and the sound outlet of the second speaker device 5 are arranged on the same axis and are arranged in directions away from each other. The first speaker device 2 and the second speaker device 5 are fixed to the support frame as a whole in the sound box 1. The internal magnetic fields of the first speaker device 2 and the second speaker device 5 are mirror images. When the first speaker device 2 and the second speaker device 5 work together, because there is no external force, the momentum of the vibrations of the two speaker devices is exchanged with each other, so the total momentum is zero and the momentum is conserved.

[0046] See also Figure 3 , is a schematic diagram of the force of the speaker assembly of this embodiment, wherein F is the force transmitted from the first speaker device 2 to the flexible member 4, F is the reaction force transmitted from the first speaker device 2 to the flexible member 4, F1 is the force of the left-right vibration of the paper cone of the first speaker device 2, F2 is the force of the left-right vibration of the paper cone of the second speaker device 5, F is the support force of the support frame on the speaker assembly, and G is the gravity of the speaker assembly on the support frame;

[0047] When the speaker assembly is working, according to Newton's third law, the first speaker device 2 and the second speaker device 5 are in the same axial direction and are equal in size and opposite in direction, that is: F1 = -F2; the recoil force when the speaker assembly is working Frear = Ftotal = F1 + (-F2) = 0; therefore, the speaker assembly is not subject to recoil.

[0048] At the same time, the vibration device can also use a spring voice coil motor.

[0049] Specifically, the sound box body 1 is provided with an interface cover 8 , and the interface cover 8 is provided with an interface member 9 .

[0050] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A recoil horn type bass dyeing sound box structure, characterized in that, include: Sound box, speaker assembly, support frame and flexible parts; The support frame is arranged in the sound box, and the speaker assembly is fixed to the support frame; The flexible member is arranged on the sound box; The speaker assembly comprises a first speaker device and a vibration device, wherein the vibration force generated by the first speaker device and the vibration force generated by the vibration device are on the same axis and in opposite directions; The sound output end of the first speaker device is connected to the flexible member.

2. The recoil horn type bass dyeing sound box structure according to claim 1 is characterized in that: The sound box is provided with a sound outlet portion in an open structure, the sound outlet portion is provided with a first groove, and the flexible member matches the first groove.

3. The recoil horn type bass dyeing sound box structure according to claim 2 is characterized in that: The flexible member ring is arranged on the end surface and the outer periphery of the sound output end of the first speaker device.

4. The recoil horn type bass dyeing sound box structure according to claim 3 is characterized in that: The flexible member is an annular ring structure with an L-shaped cross section.

5. The recoil horn type bass dyeing sound box structure according to claim 1 is characterized in that: The support frame is disposed in the cavity of the sound box and is integrally formed with the sound box.

6. The recoil horn type bass dyeing sound box structure according to claim 5 is characterized in that: The support frame is provided with a mounting portion, and the mounting portion is used for fixing and mounting the speaker assembly.

7. The recoil horn type bass dyeing sound box structure according to claim 6 is characterized in that: The vibration device is a second speaker device having the same structure as the first speaker device. The sound output portion of the first speaker device and the sound output portion of the second speaker device are arranged on the same axis and are arranged away from each other.

8. The recoil horn type bass dyeing sound box structure according to claim 1 is characterized in that: The vibration device is a spring type voice coil motor.

9. The recoil horn type bass dyeing sound box structure according to claim 1, characterized in that: The sound box body is provided with an interface cover, and the interface cover is provided with an interface piece.

Images