CN210327955U - Ceramic loudspeaker box - Google Patents

Abstract

The utility model discloses a ceramic loudspeaker box, this ceramic loudspeaker box includes ceramic casing and speaker, wherein, ceramic casing offers the mounting hole that is used for installing the speaker, ceramic casing still offers the cavity that is used for supplying the sound resonance of speaker to enlarge, this cavity and mounting hole intercommunication, the inner wall of this cavity is equipped with the sound absorbing material layer that is used for filtering the noise, this sound absorbing material layer is fired and is formed by the sponge that adsorbs there is clay or clay, even the sponge that adsorbs there is clay can form this sound absorbing material layer through firing, be equipped with a plurality of through-holes that communicate with the cavity on this sound absorbing material layer, so that this sound absorbing material layer forms to loose porous structure. The ceramic sound box has high density, good rigidity and beautiful timbre.

Description

Ceramic loudspeaker box

Technical Field

The utility model relates to a audio amplifier technical field especially relates to a ceramic sound box.

Background

An audio device is a device for reproducing the natural color of music, and generally includes a sound source (input, such as a DVD player), a power amplifier (amplifier), and a sound box, which is a terminal of the whole audio system and functions to convert an audio electric signal into corresponding sound energy and radiate the sound energy to the space, and is an extremely important component of the audio system because it undertakes a key task of converting the electric signal into a sound signal for direct listening by human ears, and it directly interacts with human hearing, which is sensitive and has a strong ability to recognize the timbre of complex sounds. Because the subjective feeling of human ears on sound is the most important standard for evaluating the sound quality of a sound system, the performance of a sound box is considered to play a key role in the sound reproduction quality of the sound system.

The audio amplifier comprises the box and the speaker of installing in the box, and its principle work is: when the loudspeaker plays sound, the low-frequency vibration of the loudspeaker is strengthened through the damping effect of the air in the box body, so that the low-frequency lower limit frequency of the loudspeaker during reproduction is widened, the distortion of music reproduction is reduced, and the radiation efficiency is improved.

The classification of the sound boxes is as follows:

according to the playback frequency: the full-band sound box can be divided into a full-band sound box, a bass sound box and an ultra-bass sound box, the full-band sound box is a sound box capable of playing sound in a range covering low frequency, medium frequency and high frequency, the lower limit frequency of the full-band sound box is generally 30Hz-60Hz, the upper limit frequency of the full-band sound box is 15Hz-20Hz, one pair or two pairs of full-band sound boxes can be used for completely bearing a sound playing task in a common medium-small sound system, the bass sound box and the ultra-bass sound box are generally special sound boxes for supplementing the low frequency and the ultra-low frequency sound playing of the full-band sound box, and the sound boxes are generally used in large and medium-sized sound systems for enhancing. When in use, most of the low-frequency signals are transmitted to a special bass power amplifier after being subjected to frequency division by an electronic frequency divider (a sound divider), and then a bass or super-bass sound box is pushed.

Dividing according to a box structure: and can be divided into a sealed sound box, a phase inversion sound box, a labyrinth sound box, a sound wave tube sound box, a multi-cavity resonance sound box, and the like. The sealed sound box has the advantages of simple design and manufacture, wide frequency response, good low-frequency transient characteristic and the like, is most widely applied to families, entertainment and performance places, and can completely isolate the forward radiation sound wave and the backward radiation sound wave of the loudspeaker.

At present, because the box body is generally made of wood materials or plastic materials, when the box body is made into a sound box, because the density, the strength and the rigidity are lower, on one hand, when the loudspeaker generates acoustic vibration, the box body generates elastic deformation to generate resonance, so that the music playback is distorted, and the tone color is deep; on the other hand, when the loudspeaker vibrates, a time difference Δ t exists between the sound generated by vibrating the sound box body and the sound directly generated by the loudspeaker, and the Δ t is large due to the influence of density and rigidity, so that distortion is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a ceramic loudspeaker box with high density, good rigidity and beautiful timbre.

The purpose of the utility model is realized by adopting the following technical scheme:

pottery audio amplifier, including ceramic casing and speaker, ceramic casing has seted up and has been used for the installation the mounting hole of speaker, ceramic casing has still seted up the intercommunication the cavity of mounting hole, the inner wall of cavity is equipped with the sound absorbing material layer that is used for filtering the noise, sound absorbing material layer is fired and forms by the sponge that adsorbs there is clay or clay, be equipped with a plurality of through-holes on the sound absorbing material layer.

Further, the inner wall surface of the sound-absorbing material layer is an uneven arc-shaped curved surface.

Further, the outer surface of the ceramic shell is wrapped by a colored glaze layer.

Further, the outer wall surface of the ceramic shell extends outwards to form an annular protrusion used for being connected with the frame of the loudspeaker, the annular protrusion surrounds the edge of the mounting hole, and the top surface of the annular protrusion is a plane attached to the bottom surface of the frame of the loudspeaker.

Further, the plurality of through holes communicate with each other.

Further, the mounting hole is located on a side wall of the ceramic shell.

Furthermore, the top of the ceramic shell is provided with an opening for communicating the cavity with the outside.

Further, the side wall of the bottom of the ceramic shell extends outwards to form a bottom support.

Further, still offer the holding tank that is used for accomodating the power cord of speaker on the ceramic package body, the holding tank with the cavity intercommunication, just the opening detachably of holding tank is equipped with the end cover.

Further, the loudspeaker is a medium and low frequency loudspeaker.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. strong vibrations can be tolerated: by using the ceramic shell as the box body, the box body made of ceramic materials can bear strong vibration due to high density and good rigidity, and the service life is longer;

2. high fidelity playback: the box body made of ceramic materials has high density and good rigidity, so that the box body can effectively resist the resonance generated after the ceramic sound box is excited, the damping action of the loudspeaker and air can better meet the requirements of a frequency response curve of a high-fidelity sound box, the sound vibration of the loudspeaker is in a more ideal state, and meanwhile, the delta t is smaller, so that the box body has positive effects on improving the transient response of the sound box, reproducing the natural color of music with high fidelity and the electroacoustic technical index of the high-fidelity sound box;

3. the plasticity is strong: the shell made of the ceramic material can more easily mould various irregular, organic and bionic complex shapes for other materials, and the sound box body can be designed in the shape with the most perfect sound effect;

4. the shell of the ceramic material is acid and alkali resistant, high temperature resistant, and has good outdoor weather resistance, and is suitable for manufacturing outdoor sound boxes;

5. the shell of the ceramic material has rich decoration means, rich colors, strong texture, rich touch and rich visual sense, and can make a sound box have rich and colorful effects;

6. in production, a mould forming mode can be adopted, and the slip casting or blank printing is formed, so that the batch production is easy to realize;

7. the sound absorption effect is better, can filter the noise: the ceramic is of a porous structure and has good acoustic characteristics, when the midsole speaker plays sound, middle and low frequency music is conducted to the outside after resonating and amplifying in the cavity, the tone color is clearer and more beautiful, the sound-absorbing material layer formed by sponge absorbing clay is arranged on the inner wall surface of the sound conduction, and the sound-absorbing material layer is of a porous structure and can play a better sound-absorbing effect, so that noise can be filtered;

8. the preparation is easy: the sound absorbing material layer formed by firing the sponge and the clay material can be fired together with the ceramic shell, so that the sound absorbing material has the advantages of easiness in preparation and good sound absorbing effect, the processing difficulty can be greatly reduced, and the processing efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a ceramic speaker of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the ceramic speaker shown in FIG. 1;

fig. 3 is an exploded view of the ceramic loudspeaker shown in fig. 1.

In the figure: 1. a ceramic housing; 11. a cavity; 111. a sound absorbing material layer; 12. mounting holes; 13. an annular projection; 131. positioning holes; 14. a bottom support; 2. a speaker; 21. a frame; 22. a power line.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 3, a ceramic speaker according to a preferred embodiment of the present invention is shown, which includes a ceramic housing 1 and a speaker 2, wherein the ceramic housing 1 is formed with a mounting hole 12 for mounting the speaker 2, the ceramic housing 1 is further formed with a cavity 11 for amplifying the acoustic resonance of the speaker 2, the cavity 11 is communicated with the mounting hole 12, the inner wall of the cavity 11 is formed with a sound absorption material layer 111 for filtering the noise, the sound absorption material layer 111 is formed by firing a sponge having clay or porcelain clay adsorbed thereon (it is understood that, after firing, the sponge is fused, and the sound absorption material layer is finally a ceramic sound absorption material layer), even if the sponge having clay or porcelain clay adsorbed thereon is fired to form the sound absorption material layer 111, the sound absorption material layer 111 is provided with a plurality of through holes communicating with the cavity 11, so that the sound absorption material layer 111 is formed into a loose porous structure, the through holes are communicated with each other, so that the surface area can be increased, and the noise reduction effect is improved.

The sound absorption principle of the adsorption material layer is as follows: the sound energy penetrates into the through-holes of the sound-absorbing material layer 111, which is subjected to air molecular friction and viscous resistance, and mechanically vibrates within the sound-absorbing material layer 111, thereby converting the sound energy into heat energy. Specifically, when the sound energy is transmitted to the surface of the sound-absorbing material layer 111, a part of the sound energy is reflected, a part of the sound energy penetrates through the sound-absorbing material layer 111, and a part of the sound energy is converted into heat energy by friction with surrounding media when the sound or vibration of the sound-absorbing material layer 111 propagates in the cavity 11, so that the sound energy is lost, that is, so-called noise (noise includes reflected and indiscriminate reflected sound) is absorbed, and the purpose of filtering the noise is achieved, so that the sound amplified by the cavity 11 is more crisp and clear.

The ceramic shell 1 is used as a box body, the box body made of ceramic materials has high density and good rigidity, so the ceramic box body can bear strong vibration, in addition, the box body made of ceramic materials has high density and good rigidity, so the ceramic box body can effectively resist the resonance generated after the ceramic sound box is excited, the damping effect of the loudspeaker 2 and air can better ensure that the sound vibration of the loudspeaker 2 is in a more ideal state according to the requirement of a frequency response curve of high-fidelity sound, meanwhile, the delta t is smaller, the ceramic box body has positive effects on improving the transient response of the sound box, reproducing the natural color of music with high fidelity and on the electroacoustic technical index of the sound box, in addition, the ceramic has good acoustic characteristics because the ceramic has a porous structure, when the middle-sole loudspeaker 2 plays, the middle-low frequency music is conducted to the outside after the resonance amplification in the cavity 11, the sound color is clearer and more beautiful, and a ceramic material layer made of sponge absorbed with sound absorption mud is arranged on the inner 111 to this sound absorbing material layer 111 is porous structure, can play better sound absorbing effect, can filter the noise, and the sound absorbing material layer 111 who is formed by sponge and clay or petuntse material preparation can be fired together with ceramic casing 1 in addition, has the easy advantage of preparation, but greatly reduced processing degree of difficulty, improves machining efficiency.

As a preferred embodiment, the inner wall surface of the sound-absorbing material layer 111 is an uneven arc-shaped curved surface, and the uneven arc-shaped curved surface can increase the surface area of the inner wall surface of the sound-absorbing material layer 111, so that the probability that the inner wall surface is in contact with sound can be increased, the probability that sound energy is converted into heat energy can be increased, and the sound-absorbing effect is better.

As preferred embodiment, ceramic housing 1's surface parcel colored glaze layer to can form glaze ceramic housing 1, glaze ceramic housing 1 does not fear the rainwater, has fine outdoor weatherability, can be applicable to outdoor audio amplifier, and glaze ceramic housing 1 is abundant in color, feel strong, the sense of touch is rich and smooth, the sense of vision is abundant, can make abundant colorful effect to the audio amplifier.

In a preferred embodiment, the outer wall surface of the ceramic housing 1 extends outward to form an annular protrusion 13 for connecting with the frame 21 of the speaker 2, the annular protrusion 13 is disposed around the edge of the mounting hole 12, and the top surface of the annular protrusion 13 is disposed as a plane that is attached to the bottom surface of the frame 21 of the speaker 2, so that the center-low frequency ceramic housing 1 can be positioned, and the speaker 2 can be mounted more stably.

As a preferred embodiment, the annular protrusion 13 is provided with a plurality of positioning holes 131 sequentially arranged around the central axis of the annular protrusion 13, when the speaker 2 is mounted on the mounting hole 12, the threaded holes on the frame 21 of the speaker 2 are aligned with the positioning holes 131, and then the speaker 2 can be fixed on the ceramic housing 1 by sequentially passing through the threaded holes and the positioning holes 131 through screws.

In a preferred embodiment, the mounting holes 12 are located in the side walls of the ceramic housing 1 to facilitate mounting of the speaker 2.

As the preferred embodiment, the top of the ceramic casing 1 is provided with an opening communicating the cavity 11 with the outside, so that the ceramic loudspeaker box is convenient to manufacture, and meanwhile, the opening is prevented from being arranged on the side surface of the ceramic casing 1 to influence the overall appearance of the ceramic casing 1, so that the ceramic loudspeaker box is more attractive and has better decorative effect.

In a preferred embodiment, the bottom side wall of the ceramic housing 1 extends outward to form a bottom support 14, so as to provide a stable support structure for the ceramic housing 1, and to make the placement of the ceramic housing 1 more stable.

As the preferred embodiment, ceramic casing 1 is last still to offer the holding tank that is used for accomodating speaker 2's power cord 22, and holding tank and cavity 11 intercommunication, and the opening detachably of holding tank is equipped with the end cover, so, when not using this ceramic audio amplifier, speaker 2's power cord 22 can be accomodate to this holding tank in, firstly can avoid laying dust, secondly can make this ceramic audio amplifier use as an ornament, and the appearance is more pleasing to the eye.

Specifically, the speaker 2 mentioned in the present invention may be any one of a woofer 2, a midrange speaker 2, a tweeter 2, or a midrange and midrange woofer 2, and in the present embodiment, the speaker 2 is preferably the midrange and midrange speaker 2.

The utility model provides a ceramic loudspeaker box has following advantage:

1. strong vibrations can be tolerated: by using the ceramic shell 1 as the box body, the box body made of ceramic materials has high density and good rigidity, so that the box body can bear strong vibration and has longer service life;

2. high fidelity playback: the box body made of ceramic materials has high density and good rigidity, so that the box body can effectively resist the resonance generated after the ceramic sound box is excited, the damping action of the loudspeaker 2 and air can better meet the requirements of a frequency response curve of a high-fidelity sound box, the sound vibration of the loudspeaker 2 is in a more ideal state, and meanwhile, the delta t is smaller, so that the box body has positive effects on improving the transient response of the sound box, reproducing the natural color of music with high fidelity and the electroacoustic technical index of the high-fidelity sound box;

3. the plasticity is strong: the shell made of the ceramic material can more easily mould various irregular, organic and bionic complex shapes for other materials, and the sound box body can be designed in the shape with the most perfect sound effect;

4. the ceramic shell is acid and alkali resistant and high temperature resistant, the glazed ceramic shell 1 is not afraid of rainwater, has good outdoor weather resistance, and is suitable for manufacturing outdoor sound boxes;

5. the shell of the ceramic material has rich decoration means, rich colors, strong texture, rich touch and rich visual sense, and can make a sound box have rich and colorful effects;

6. in production, a mould forming mode can be adopted, and the slip casting or blank printing is formed, so that the batch production is easy to realize;

7. the sound absorption effect is better, can filter the noise: because the ceramic is a porous structure and has good acoustic characteristics, when the midsole speaker 2 plays sound, the middle and low frequency music is conducted to the outside after resonating and amplifying in the cavity 11, the tone color is clearer, a sound absorption material layer 111 formed by sponge absorbing clay is arranged on the inner wall surface of the sound conduction, and the sound absorption material layer 111 is a porous structure, has large mass and large density, can play a good sound absorption effect, and can filter noise;

8. the preparation is easy: the sound absorption material layer 111 made of the sponge and the clay material can be fired together with the ceramic shell 1, so that the sound absorption material layer has the advantage of easiness in preparation, the processing difficulty can be greatly reduced, and the processing efficiency is improved.

In summary, the ceramic sound box is researched in the sound field from the perspective of the ceramic material process, and by utilizing the beautiful acoustic characteristics of the ceramic, the aesthetic value of the furnishing artwork is integrated with the practical function of the sound product, so that the mechanical feeling of the ceramic sound box disappears to the greatest extent, and the ceramic sound box not only has the practical function of the sound box, but also is the furnishing artwork with the aesthetic value.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. Ceramic loudspeaker box, its characterized in that, including ceramic casing and speaker, ceramic casing offers and is used for the installation the mounting hole of speaker, ceramic casing still offers and is used for the confession the amplified cavity of the sound resonance of speaker, the cavity with the mounting hole intercommunication, the inner wall of cavity is equipped with the sound absorbing material layer that is used for filtering the noise, sound absorbing material layer has pottery clay or the sponge of porcelain clay to fire and forms by adsorbing, be equipped with a plurality of through-holes that communicate with the cavity on the sound absorbing material layer.

2. The ceramic speaker as claimed in claim 1, wherein the inner wall surface of the sound-absorbing material layer is an uneven curved arc surface.

3. The ceramic loudspeaker of claim 1, wherein the outer surface of the ceramic enclosure is covered with a colored glaze layer.

4. The ceramic speaker of claim 1, wherein the outer wall surface of the ceramic case extends outward to form an annular protrusion for connecting with the frame of the speaker, the annular protrusion is disposed around the edge of the mounting hole, and the top surface of the annular protrusion is a flat surface that is attached to the bottom surface of the frame of the speaker.

5. The ceramic acoustic enclosure of claim 1, wherein a plurality of the through-holes are in communication with one another.

6. The ceramic acoustic enclosure of claim 1, wherein the mounting holes are located in a side wall of the ceramic housing.

7. The ceramic speaker as claimed in claim 1, wherein the top of the ceramic case is opened with an opening communicating the cavity with the outside.

8. The ceramic loudspeaker of claim 1, wherein the side walls of the bottom of the ceramic enclosure extend outwardly to form a bottom mount.

9. The ceramic speaker as claimed in claim 1, wherein the ceramic case further defines a receiving groove for receiving a power line of the speaker, the receiving groove is communicated with the cavity, and an opening of the receiving groove is detachably provided with an end cap.

10. The ceramic loudspeaker of claim 1, wherein the speaker is a mid-low frequency speaker.

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