Loudspeaker structure capable of emitting sound from side

Abstract

The utility model discloses a side-sounding horn structure, which comprises a shell and a loudspeaker, the shell is provided with an inner cavity, the inner cavity comprises a resonant cavity and a sound guide channel communicated with the resonant cavity, two ends of the sound guide channel are provided with a sound inlet and a sound outlet, the sound guide channel is provided with a cone, and the cone is provided with a loudspeaker. The cone is used for enabling the sound guide channel to be nonlinear; the inner cavity and the sound guide channel are located on the same horizontal plane, the sound outlet is formed in the side wall of the shell, the loudspeaker comprises a magnetic circuit assembly arranged on the shell and a vibrating diaphragm matched with the magnetic circuit assembly, the vibrating diaphragm and the bottom wall of the resonant cavity are oppositely arranged, and the vibrating diaphragm and the sound inlet are located on the same horizontal plane. Through the design of the cone, the sound guide channel is in a non-linear shape, then high-frequency sound pressure reduction caused by high-frequency resonance can be restrained, through the arrangement of the cone, the curve of the sound guide channel can be set to be opposite to the curve of the high frequency, the sensitivity of the high frequency can be improved, resonance is avoided, and then the sound pressure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker field especially relates to a side sound outlet's loudspeaker structure. BACKGROUND

[0002] With the light and thin design of electronic equipment, the thickness of the loudspeaker is also thinner and thinner, and the sound outlet direction can only be side sound outlet.

[0003] The thin design brings another problem that the sound pressure will be reduced, so it is required to keep the sound pressure from being sacrificed while achieving thin design, and two ways are mostly selected, 1, side sound outlet hole plus iron plate; 2, side sound outlet plus iron plate and the loudspeaker sound outlet surface is inclined to a certain sound outlet angle.

[0004] The two ways can meet the ultra-thin design, but the high-frequency sound pressure will be lost too much, and the Figure One The new design increases a reverse high-frequency sensitivity at the sound outlet end. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a loudspeaker structure of side sound outlet, which aims at improving the structure of the sound guide channel, increasing a reverse structure at the sound outlet end to increase the high-frequency sensitivity, and further improving the sound quality.

[0006] To achieve the above object, the utility model provides a loudspeaker structure of side sound outlet, which comprises:

[0007] The shell is provided with an inner cavity, the inner cavity comprises a resonance cavity and a sound guide channel communicated with the resonance cavity, both ends of the sound guide channel are provided with a sound inlet and a sound outlet, the sound guide channel is provided with a cone, and the cone is used to make the sound guide channel non-linear;

[0008] The inner cavity and the sound guide channel are in the same horizontal plane, and the sound outlet is arranged at the side wall position of the shell.

[0009] The loudspeaker comprises a magnetic circuit assembly arranged in the shell and a diaphragm matched with the magnetic circuit assembly, the diaphragm is arranged opposite to the bottom wall of the resonance cavity, and the diaphragm is in the same horizontal plane with the sound inlet.

[0010] In the actual design, the sound guide channel is non-linear through the design of the cone, and then the high-frequency sound pressure drop caused by high-frequency resonance can be inhibited, the design can be understood as follows: in the process of high-frequency sound pressure transmission, the stroke is too short and the transmission is linear, so when the high-frequency sound pressure is transmitted, the high-frequency sound pressure will resonate with the sound guide channel, and then the high-frequency sensitivity will be improved, the resonance is avoided, and then the sound pressure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a half-split schematic view of the utility model;

[0012] Figure 2 is a split view of the utility model Figure One ;

[0013] Figure 3 is a split view of the utility model Figure Two ;

[0014] Figure 4 is an exploded view of the utility model;

[0015] Figure 5 is a width direction schematic view of the utility model;

[0016] Figure 6 is a three-dimensional schematic view of the utility model;

[0017] Figure 7 is an audio comparison schematic view of the utility model and prior art design.

[0018] In the drawings,

[0019] 1 is a shell, 10 is a resonance cavity,

[0020] 2 is a sound guide channel, 21 is a sound inlet, and 22 is a sound outlet.

[0021] 3 is a cone, 30 is a wave crest, 31 is a first wave trough, and 32 is a second wave trough,

[0022] 4 is a diaphragm, 41 is a first arc surface, 42 is a second arc surface, 43 is a third arc surface, and 44 is a fourth arc surface,

[0023] 51 is a first convex part, and 52 is a second convex part,

[0024] 6 is a U-shaped iron, 61 is a magnet, and 62 is a Hua Si,

[0025] 7 is an opening, 71 is a voice coil, and 72 is a support,

[0026] 8 is a positioning hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the utility model have the directionality indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0029] In addition, if the embodiments of the utility model have the description of "first" or "second", etc., the description of "first" or "second" is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0030] As shown in Figures 1 to 7 A side sound outlet loudspeaker structure, comprising:

[0031] A shell 1, the shell 1 is provided with an inner cavity, the inner cavity includes a resonance cavity 10 and a sound guide channel 2 communicated with the resonance cavity 10, both ends of the sound guide channel 2 are provided with a sound inlet 21 and a sound outlet 22, the sound guide channel 2 is provided with a cone 3, the cone 3 is used to make the sound guide channel 2 be non-linear;

[0032] The inner cavity and the sound guide channel 2 are in the same horizontal plane, and the sound outlet 22 is arranged at the side wall position of the shell 1.

[0033] A loudspeaker, the loudspeaker includes a magnetic circuit assembly arranged in the shell 1 and a diaphragm 4 matched with the magnetic circuit assembly, the diaphragm 4 is arranged opposite to the bottom wall of the resonance cavity 10, and the diaphragm 4 is in the same horizontal plane with the sound inlet 21.

[0034] In actual design, the sound guide channel 2 is made non-linear by the design of the cone 3, so that the high-frequency resonance caused by the high-frequency sound pressure drop can be inhibited. The design can be understood as follows: when the high-frequency sound pressure is transmitted, the high-frequency sound pressure will resonate with the sound guide channel 2 due to the too short stroke and straight transmission, thereby causing the high-frequency sound pressure to drop. By arranging the cone 3, the curve of the sound guide channel 2 and the curve of the high frequency are opposite, so that the sensitivity of the high frequency is improved, the resonance is avoided, and the sound pressure is improved.

[0035] The arrangement of the cone 3 can play a physical dustproof role.

[0036] Specifically, the cross section of the sound guide channel 2 is in an arc shape, the arc shape comprises a wave crest 30 and first and second wave troughs 31 and 32 arranged at two ends, the first wave trough 31 is the sound inlet 21, the second wave trough 32 is the sound outlet 22, and the wave crest 30 is the cone 3, thereby forming a predetermined curve, and the curvature of the curve can be changed according to different loudspeakers.

[0037] In the embodiment of the utility model, the wave crest 30 and the first wave trough 31 are provided with a first arc segment;

[0038] The wave crest 30 and the second wave trough 32 are provided with a second arc segment, and a predetermined curve is formed, and the design is mainly set according to the high-frequency curve of the loudspeaker, thereby avoiding the problem of resonance.

[0039] Specifically, the horizontal plane of the second wave trough 32 is lower than that of the first wave trough 31, thereby prolonging the length of the sound guide channel 2.

[0040] In the embodiment of the utility model, the sound guide channel 2 is in a horizontal straight line, and the cone 3 is arranged on the upper wall or the lower wall of the sound guide channel 2, and in one of the embodiments, in order to make the structure production simpler, the simple cone 3 design can reduce the production cost while effectively improving the high-frequency sensitivity.

[0041] Specifically, the diaphragm 4 is elastically attached to or provided with a gap on the bottom wall of the resonance cavity 10, and through the gap or elastic abutment, the loss of vibration can be reduced, thereby adjusting the frequency response curve, improving the listening effect, and enabling the high-frequency sound pressure to be transmitted outward through the sound guide channel 2.

[0042] In the embodiment of the utility model, the diaphragm 4 is provided with a first arc surface 41 and a second arc surface 42 arranged on the outer periphery of the first arc surface, and the bottom wall of the resonance cavity 10 is provided with a third arc surface 43 and a fourth arc surface 44 matched with the first and second arc surfaces, and in the specific design, the shell 1 can be integrally formed or can be a matched mounting structure of an upper shell and a lower shell.

[0043] Specifically, the diaphragm 4 is in an elliptical shape or a circular shape, and the width of the sound guide channel 2 is adapted to the maximum width of the diaphragm 4.

[0044] In the embodiment of the utility model, the first arc surface and the second arc surface are provided with a first convex portion 51, and the outer side of the second arc surface is provided with a second convex portion,

[0045] The housing 1 has an opening 7, which contains a U-shaped iron 6, a magnet 61 and a washer 62 (one or more sets can be set according to actual needs) and a voice coil 71. A magnetic circuit gap is provided between the inner wall of the U-shaped iron 6 and the magnet. The voice coil extends into the magnetic circuit gap and is mounted on a bracket 72. The lower end of the bracket is connected to a first protrusion 51. The second protrusion 52 is fixed to the upper wall of the vibration cavity, for example, by adhesive bonding, thereby realizing the outward transmission of sound pressure.

[0046] Specifically, the housing 1 has positioning holes 8 on both sides to facilitate the installation of the housing 1.

[0047] like Figure 7 As shown, 100 is the audio curve of the existing design and 200 is the audio curve of this application, which shows that the sound quality of the high frequency band is significantly improved.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A side-firing horn structure, characterized by, The application relates to a loudspeaker, which comprises a shell, a magnetic circuit assembly and a diaphragm. The shell is provided with an inner cavity, which comprises a resonance cavity and a sound guide channel in communication with the resonance cavity. The sound guide channel is provided with an input sound port and an output sound port at two ends. The sound guide channel is provided with a cone for making the sound guide channel non-linear.

2. The side-firing horn structure of claim 1, wherein: The inner cavity and the sound guide channel are in the same horizontal plane, and the output sound port is arranged on the side wall of the shell.

3. The side-firing horn structure of claim 2, wherein: The loudspeaker comprises a magnetic circuit assembly arranged in the shell and a diaphragm matched with the magnetic circuit assembly. The diaphragm is arranged opposite to the bottom wall of the resonance cavity and is in the same horizontal plane with the input sound port.

4. The side-firing horn structure of claim 2, wherein: The cross section of the sound guide channel is in an arc shape, which comprises a wave crest and first and second wave troughs arranged at two ends.

5. The side-firing horn structure of claim 1, wherein: The first wave trough is the input sound port, the second wave trough is the output sound port, and the wave crest is the cone.

6. The side-firing horn structure of claim 1, wherein: A first arc segment is arranged between the wave crest and the first wave trough.

7. The side-firing horn structure of claim 6, wherein: A second arc segment is arranged between the wave crest and the second wave trough.

8. The side-firing horn structure of claim 7, wherein: The horizontal plane of the second wave trough is lower than that of the first wave trough.

9. The side-firing horn structure of claim 7, wherein: The sound guide channel is in a horizontal straight line, and the cone is arranged on the upper wall or the lower wall of the sound guide channel. The diaphragm is elastically attached to the bottom wall of the resonance cavity or is provided with a gap. The diaphragm is provided with a first arc surface and a second arc surface arranged outside the periphery of the first arc surface.

10. The side-firing horn structure of claim 7, wherein: The bottom wall of the resonance cavity is provided with a third arc surface and a fourth arc surface matched with the first and second arc surfaces. The diaphragm is in an elliptical shape or a circular shape. The width of the sound guide channel is matched with the maximum width of the diaphragm. A first convex part is arranged between the first and second arc surfaces. The outer side of the second arc surface is provided with a second convex part. The shell is provided with an opening, which is provided with a U-shaped iron, a magnet arranged in the U-shaped iron and a dust cap. A magnetic circuit gap is arranged between the inner wall of the U-shaped iron and the magnet. The voice coil is arranged in the magnetic circuit gap. The voice coil is arranged on a support, and the lower end of the support is connected with the first convex part. The second convex part is fixed on the upper wall of the vibration cavity. Positioning holes are arranged on the two sides of the shell.

Images