Box body and sound box

Abstract

The box body is provided with a sound cavity and a loudspeaker opening, the sound cavity is a gradually-enlarged sound cavity with the outer contour of the cross section gradually increasing in the depth direction, the inner wall of the sound cavity is a curved surface, the loudspeaker opening is formed in the larger end of the sound cavity, and the box body is integrally formed through sand mold 3D printing. And the influence of connecting accessories, splicing seams and the like on the output tone quality is reduced. The inner wall of the gradually-enlarged sound cavity is a curved surface, so that compared with a box body with a regular shape, corners are reduced, and the influence of standing waves and sound dyeing can be reduced. And the sound cavity has a certain depth, so that the low-frequency diving capability is improved, and the low-frequency sound presentation effect is improved. In addition, the box body integrally formed through sand mold 3D printing not only is damp-proof and durable, but also has the good damping characteristic, and resonance can be reduced; and the density value is between a wood box body material, a plastic box body material and a metal box body material, so that the tone quality is transparent, and compared with a metal material, the tone quality is not too hard, and the low-frequency effect is good.

Description

Technical Field

[0001] The utility model relates to the field of electronic products, in particular to a box and a speaker. Background Art

[0002] The material and structure of a speaker cabinet significantly influence the quality of the audio. Common speaker cabinets are currently made of wood, plastic, MDF, and metal. These materials, due to differences in density, damping characteristics, and other parameters, produce varying effects on acoustic feedback. Generally speaking, cabinets made of wood, plastic, and MDF are susceptible to sound waves, causing resonance and resulting in poor sound quality. Conversely, cabinets made of metal exhibit weaker resonance and deliver higher clarity.

[0003] However, most of the cabinet structures or shapes of these materials are designed to be regular shapes, such as rectangular blocks. Due to edge diffraction issues, regular shapes such as rectangular blocks are often considered to be suboptimal radiation surfaces. In terms of internal standing wave patterns, they are also not optimal, which can easily cause sound coloration and is not conducive to improving sound quality. Summary of the Invention

[0004] Based on this, it is necessary to provide a sound box with transparent sound quality that can reduce standing waves and sound coloration to address the problem of poor sound quality due to poor box material selection and structural design.

[0005] A box body is provided with a sound cavity and a speaker port. The sound cavity is a gradually expanding sound cavity with the outer contour of the cross section gradually increasing along the depth direction. The inner wall of the sound cavity is a curved surface. The speaker port is arranged at the larger end of the sound cavity. The box body is a box body formed in one piece by sand mold 3D printing.

[0006] In one embodiment, the inner cavity structure of the box is shaped like a snail shell, a pipe, a spiral, or a clef, and the gradually expanding acoustic cavity is a partial inner cavity structure of the box.

[0007] In one embodiment, the box has one, two or three sound cavities, the box also includes a divider, the number of the speaker ports is the same as the number of the sound cavities, the multiple sound cavities are connected, and the outer contours of the maximum cross-sections of the multiple sound cavities increase successively.

[0008] In one embodiment, the box body further includes a function key opening, and the function key opening is arranged on the side wall of the box body.

[0009] In one embodiment, the box wall thickness is 8 mm to 12 mm.

[0010] In one embodiment, the box body further includes a sound-absorbing layer, and the sound-absorbing layer is sound-insulating cotton.

[0011] In one embodiment, a clip is provided on the inner wall of the box body near the speaker opening for placing the battery.

[0012] The utility model also provides a sound system, which comprises the above-mentioned box, loudspeaker and electronic components.

[0013] In one embodiment, the speaker further includes a support, the box is provided with a plurality of mounting holes, the support is connected to the mounting holes, and the projection of the center of gravity of the box in the direction of gravity falls within the maximum outer contour of the support.

[0014] The above-mentioned cabinet is a one-piece sand mold 3D printing cabinet, which reduces the impact of connecting accessories and seams on the output sound quality. The cabinet has a gradually expanding sound cavity with a curved inner wall. Compared with a regular-shaped cabinet, it reduces corners and can reduce the effects of standing waves and sound coloration. The gradually expanding sound cavity has a certain depth, which is conducive to improving the low-frequency dive capability and improving the low-frequency sound presentation effect. In addition, the sand mold 3D printing one-piece cabinet is not only moisture-proof and durable, but also has good damping properties, which can reduce resonance. The density value is between wooden cabinet materials, plastic cabinet materials and metal cabinet materials, showing transparent sound quality. At the same time, compared with metal materials, the sound quality is not too hard and the low-frequency effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a first view of a snail-shaped housing in one embodiment;

[0016] Figure 2 is a second view of a snail-shaped housing in one embodiment;

[0017] Figure 3 is a cross-sectional view of a snail-shaped housing in one embodiment;

[0018] Figure 4 is a first view of a pipe-shaped box in one embodiment;

[0019] Figure 5 is a second view of a pipe-shaped box in one embodiment;

[0020] Figure 6 is a cross-sectional view of a pipe-shaped box in one embodiment;

[0021] Figure 7 is a first view of a clef-shaped box in one embodiment;

[0022] Figure 8 is a second view of a clef-shaped box in one embodiment;

[0023] Figure 9 is a cross-sectional view of a clef-shaped box in one embodiment;

[0024] Figure 10 is a first view of a spiral box in one embodiment;

[0025] Figure 11 is a second view of a spiral box in one embodiment;

[0026] Figure 12 2 is a cross-sectional view of a spiral box in one embodiment.

[0027] Description of labels:

[0028] 1. Box body; 2. Sound cavity; 3. Speaker port; 4. Support; 5. Function key port; 6. Connector.

[0029] 11. Mounting hole;

[0030] 31. Low frequency outlet; 32. Medium frequency outlet; 33. High frequency outlet 33. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] See Figures 1 to 3An embodiment of the present invention provides a cabinet 1, wherein the cabinet 1 is provided with a sound cavity 2 and a speaker port 3. The sound cavity 2 is a gradually expanding sound cavity 2 in which the outer contour of the cross section gradually increases along the depth direction. The inner wall of the sound cavity 2 is a curved surface. The speaker port 3 is arranged at the larger end of the sound cavity 2. The cabinet 1 is a cabinet 1 integrally formed by sand mold 3D printing. The above-mentioned cabinet 1 is a cabinet 1 integrally formed by sand mold 3D printing, which reduces the influence of connecting accessories and seams on the output sound quality. The cabinet 1 has a gradually expanding sound cavity 2, and the inner wall of the sound cavity 2 is a curved surface. Compared with the cabinet 1 with a regular shape, the cabinet 1 has fewer corners, which can reduce the influence of standing waves and sound coloration. Moreover, the gradually expanding sound cavity 2 has a certain depth, which is conducive to improving the low-frequency diving ability and improving the low-frequency sound presentation effect. In addition, the box body 1 formed in one piece by sand 3D printing is not only strong, moisture-proof and durable, but also has good damping properties, which can reduce resonance; and the density value is between the wooden box body 1 material, the plastic box body 1 material and the metal box body 1 material, showing transparent sound quality. At the same time, compared with metal materials, the sound quality is not too hard, and the low-frequency effect is good.

[0038] The cabinet 1, described herein, is formed in one piece using sand 3D printing. It features high-density powder (quartz sand, ceramsite sand, SiC, etc.), resulting in a dense and uniform structure, excellent damping, low resonance, and high sound quality fidelity. The powder material of the cabinet 1 has a microscopic shape of a cone or sphere. After forming, it absorbs the speaker's reverse sound waves, preventing them from disrupting normal sound waves. After the powder solidifies, the cabinet 1's exterior surface is completely sealed, completely isolating the backward-radiating sound waves from interfering with the forward-radiating sound waves.

[0039] Optionally, in one embodiment, the inner cavity structure of the box body 1 is in the shape of a snail shell, a pipe, a clef, or a spiral, such as Figures 1 to 12 As shown, the gradually expanding sound cavity 2 is a partial inner cavity structure of the box body 1.

[0040] Optionally, the minimum cross-sectional area of the acoustic cavity 2 is greater than or equal to the effective vibration area of the loudspeaker diaphragm.

[0041] Optionally, in one embodiment, the box body 1 further comprises a function key opening 5, which is provided on a side wall of the box body 1 and is used for installing switches and control keys. Optionally, the function key opening 5 is a long hole.

[0042] Optionally, in one embodiment, the wall thickness of the box body 1 is 8 mm to 12 mm. Optionally, the wall thickness of the box body 1 is 8 mm or 10 mm to ensure the structural strength of the box body 1.

[0043] Optionally, in one embodiment, the box 1 further includes a sound-absorbing layer, which is laid on the inner wall of the sound cavity 2. The sound-absorbing layer is sound-insulating cotton to control internal reflections, further reduce the impact of standing waves, and provide cleaner and more accurate sound.

[0044] Optionally, the opening of the sound cavity 2 is a speaker opening 3, and the speaker opening 3 is circular. Optionally, the size of the speaker opening 3 is preferably 3 inches or 4 inches to ensure sufficient carrying space.

[0045] Optionally, the depth or length of the acoustic cavity 2 is 1 / 4 wavelength of the resonant frequency of the loudspeaker, and the radiated sound waves are consistent in phase with the sound waves of the speaker unit.

[0046] Optionally, in one embodiment, a clip 6 is provided on the inner wall of the housing 1 near the speaker opening 3 for accommodating the battery. This shortens the connection path between the battery and the speaker and other electronic components, and facilitates battery replacement close to the speaker opening 3. Optionally, the clip 6 has a slot. Optionally, there are one, two, three, or four clips 6.

[0047] Figures 1 to 3 The figure shows a snail-shell-shaped or nearly snail-shell-shaped enclosure 1 in one embodiment. In this embodiment, the inner wall of the acoustic cavity 2 is a snail-shell-shaped or nearly snail-shell-shaped curved surface; the opening of the acoustic cavity 2 is a speaker port 3 for connecting a speaker. Optionally, mounting holes 11 are provided on the outer wall of the enclosure 1 near the speaker port 3 for mounting a support 4 for the speaker. Three or four mounting holes 11 are provided, and the support 4 is connected to the mounting holes 11. The projection of the center of gravity of the enclosure 1 in the direction of gravity falls within the maximum outer contour of the support 4, so that after the mounting holes 11 are connected to the support 4, the center of gravity of the enclosure 1 as a whole is stable.

[0048] Figures 4 to 6 The figure shows a pipe-shaped or nearly pipe-shaped enclosure 1 in one embodiment. In this embodiment, the inner wall of the acoustic cavity 2 is a pipe-shaped or nearly pipe-shaped curved surface; the opening of the acoustic cavity 2 is a speaker port 3 for connecting a speaker. Optionally, mounting holes 11 are provided at the bottom of the enclosure 1 for mounting a support 4 for the speaker. Three or four mounting holes 11 are provided, and the support 4 is connected to the mounting holes 11. The projection of the center of gravity of the enclosure 1 in the direction of gravity falls within the maximum outer contour of the support 4, so that after the mounting holes 11 and the support 4 are connected, the center of gravity of the enclosure 1 as a whole is stable.

[0049] Figures 7 to 9As shown, a clef-shaped or nearly clef-shaped box 1 in one embodiment, wherein the clef described herein is the G clef. In this embodiment, the inner wall of the sound cavity 2 is a tubular cavity with a gradually increasing diameter, and the tubular cavity is a part of the structure of the clef-shaped or nearly clef-shaped box 1; the opening of the sound cavity 2 is a speaker port 3 for connecting a speaker. Optionally, a mounting hole 11 is provided at the bottom of the box 1 for mounting a support 4 for the speaker, and three or four mounting holes 11 are provided. The support 4 is connected to the mounting holes 11, and the projection of the center of gravity of the box 1 in the direction of gravity falls within the maximum outer contour of the support 4, so that after the mounting hole 11 is connected to the support 4, the center of gravity of the box 1 as a whole is stable.

[0050] Please continue reading Figures 7 to 9 Optionally, in this embodiment, the sound cavity 2 of the cabinet 1 is provided with one, two or three, the cabinet 1 further includes a frequency divider, the number of the speaker ports 3 is the same as the number of the sound cavities 2, and the diameters of the maximum cross-sections of the multiple sound cavities 2 increase successively; optionally, the sound cavity 2 of the cabinet 1 is two, namely the treble channel and the mid-bass channel, and the diameter of the maximum cross-section of the treble channel is smaller than the diameter of the maximum cross-section of the mid-bass channel. The treble and mid-bass frequencies are respectively distributed to the treble channel and the mid-bass channel through a frequency divider, so that the channel with a larger diameter outputs mid-bass frequencies, and the channel with a smaller diameter outputs treble frequencies, presenting a more three-dimensional sound quality; optionally, the box 1 has three sound cavities 2, namely the treble channel, the mid-range channel and the bass channel, and the diameters of the maximum cross-sections of the treble channel, the mid-range channel and the bass channel increase successively, and the openings of the treble channel, the mid-range channel and the bass channel are the high-frequency outlet 33, the mid-frequency outlet 32 and the low-frequency outlet 31 respectively, which are used to connect speakers; the treble, mid-range and bass frequencies are respectively distributed to the treble channel, the mid-range channel and the bass channel through a frequency divider, and the frequency division design ensures that each audio segment is evenly distributed in the space to achieve high-fidelity sound quality.

[0051] Figures 10 to 12 As shown, a spiral or nearly spiral-shaped box 1 in one embodiment. In this embodiment, the inner wall of the sound cavity 2 is a spiral or nearly spiral curved surface. The opening of the sound cavity 2 is a speaker port 3 for connecting a speaker; optionally, a mounting hole 11 is provided on the outer wall of the box 1 for mounting a support 4 for the audio system, and three or four mounting holes 11 are provided. The support 4 is connected to the mounting holes 11, and the projection of the center of gravity of the box 1 in the direction of gravity falls within the maximum outer contour of the support 4, so that after the mounting hole 11 is connected to the support 4, the center of gravity of the box 1 as a whole is stable.

[0052] The above-mentioned cabinet 1 is a cabinet 1 formed in one piece by sand 3D printing, which reduces the influence of connecting accessories and seams on the output sound quality. The cabinet 1 has a gradually expanding sound cavity 2, and the inner wall of the sound cavity 2 is a curved surface. Compared with the cabinet 1 with a regular shape, it reduces corners and can reduce the influence of standing waves and sound coloration. The gradually expanding sound cavity 2 has a certain depth, which is conducive to improving the low-frequency diving ability and improving the low-frequency sound presentation effect. In addition, the cabinet 1 formed in one piece by sand 3D printing is not only moisture-proof and durable, but also has good damping properties, which can reduce resonance; and the density value is between the wooden cabinet 1 material, the plastic cabinet 1 material and the metal cabinet 1 material, showing transparent sound quality. At the same time, compared with metal materials, the sound quality is not too hard, and the low-frequency effect is good.

[0053] The present invention also provides a sound system, which includes the above-mentioned box body 1, speakers and electronic components. The sound system has the technical effects that can be achieved by the above-mentioned box body 1, which will not be described in detail here.

[0054] In one embodiment, the speaker further includes a support 4, a plurality of mounting holes 11 are provided on the box 1, the support 4 is connected to the mounting holes 11, and the projection of the center of gravity of the box 1 in the direction of gravity falls within the maximum outer contour of the support 4.

[0055] Alternatively, as Figures 4 to 6 As shown, the support 4 is a bracket composed of three support rods, which supports the bottom and sides of the box body 1.

[0056] Alternatively, as Figures 7 to 9 As shown, optionally, the support 4 is truncated cone-shaped or nearly truncated cone-shaped.

[0057] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A box, characterized in that: The box body is provided with a sound cavity and a speaker port. The sound cavity is a gradually expanding sound cavity with the outer contour of the cross section gradually increasing along the depth direction. The inner wall of the sound cavity is a curved surface. The speaker port is arranged at the larger end of the sound cavity. The box body is a box body formed in one piece by sand mold 3D printing.

2. The box according to claim 1, characterized in that The inner cavity structure of the box body is in the shape of a snail shell, a pipe, a spiral, or a clef, and the gradually expanding sound cavity is a partial inner cavity structure of the box body.

3. The box according to claim 1, characterized in that The box has one, two or three sound cavities, and the box also includes a frequency divider. The number of the speaker ports is the same as the number of the sound cavities. The multiple sound cavities are connected, and the outer contours of the maximum cross-sections of the multiple sound cavities increase successively.

4. The box according to claim 1, characterized in that The box body further comprises a function key opening, and the function key opening is arranged on the side wall of the box body.

5. The box according to claim 1, characterized in that: The box wall thickness is 8mm to 12mm.

6. The box according to claim 1, characterized in that The box body also includes a sound-absorbing layer, which is sound-insulating cotton.

7. The box according to claim 1, characterized in that A clip is provided on the inner wall of the box body near the speaker opening for placing batteries.

8. A sound system, characterized in that: The audio system comprises the box, speakers and electronic components as described in any one of claims 1 to 7.

9. The sound system according to claim 8, characterized in that The speaker further includes a support, a plurality of mounting holes are provided on the box, the support is connected to the mounting holes, and the projection of the center of gravity of the box in the direction of gravity falls within the maximum outer contour of the support.

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