CN210093478U

CN210093478U - Ceramic sound box

Info

Publication number: CN210093478U
Application number: CN201920934766.5U
Authority: CN
Inventors: 贺翔
Original assignee: GUANGZHOU JIASHENG AUDIO EQUIPMENT CO Ltd
Current assignee: GUANGZHOU JIASHENG AUDIO EQUIPMENT CO Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-02-18
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a ceramic loudspeaker box, including box and speaker, the box includes spherical cavity and bottom, the both ends at the cavity are installed respectively to bottom and speaker, the cavity is ceramic chamber, process the horizontal plane of ceramic chamber's centre of sphere will ceramic chamber separates into cavity and lower cavity, it is greater than the projected area of cavity on vertical face down to go up the projected area of cavity on vertical face. The utility model discloses a replace the sound chamber of traditional wooden or plastics with ceramic cavity, can not cause the disappearance of audio frequency, all fine to high and medium low frequency sound reaction, low frequency is muddy heavy, the intermediate frequency is loud and pleasant, the high frequency is crisp and clear to be sounded, simultaneously because the die cavity in the ceramic mould is processed easily, can produce different figurative audio amplifier, the outward appearance is more pleasing to the eye.

Description

Ceramic sound box

Technical Field

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

Background

A sound box is a device capable of converting an audio signal into sound, and is becoming an essential electronic product in life of people. People have higher and higher requirements on the performance of the sound box, and meanwhile, the appearance of the sound box is also required to have diversity and artistry.

The material and control circuit of the sound box are important factors for determining the tone quality and the function, the control circuit generally comprises a central processing unit, a power supply module and other functional modules, most of the sound boxes are generally made of wood materials at present, because the hardness of the wood material is limited by the processing method, the wood material is difficult to meet the theoretical design requirement of the sound box, there is a difficulty in suppressing and eliminating the "standing sound wave", easily resulting in an increase in the distortion degree of the low frequency band of the reproduced music, meanwhile, the manufactured sound box has a monotonous appearance and is not beautiful enough, but the sound and ceramic resonance effect can not be achieved by the traditional sound box made of wood and plastic under similar conditions by using ceramic as a generating cavity, the sound quality can be better, meanwhile, the glaze is smooth, glittering and translucent, soft in luster, as jade, and unique in artistic beauty with rich texture of accumulation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides a ceramic loudspeaker box which has beautiful appearance, small occupied space and better tone quality.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a ceramic loudspeaker box, includes box and speaker, the box includes spherical cavity and bottom, bottom and speaker are installed respectively at the both ends of cavity, the cavity is the ceramic cavity, through the horizontal plane of the centre of sphere of ceramic cavity will the ceramic cavity separates into cavity and lower cavity, go up the projected area of cavity on vertical surface and be greater than the projected area of cavity on vertical surface down.

Adopt above-mentioned scheme, produce ceramic cavity according to foretell proportional relation, then fix the speaker in ceramic cavity, and close ceramic cavity through top cap and bottom lid, make ceramic cavity form a cavity, control speaker carries out the broadcast of music, ceramic cavity compares traditional wooden or plastics sound chamber not have toughness, can not cause the disappearance of audio frequency, to high, well, low frequency sound reaction all fine, the low frequency is muddy heavy, the intermediate frequency is happy, the high frequency is crisp and loud, simultaneously because the die cavity in the ceramic mould is processed easily, can produce different figurative audio amplifier, the outward appearance is more pleasing to the eye.

As a preferred scheme, an upper opening is arranged at the upper end of the upper cavity, a lower opening is arranged at the lower end of the lower cavity, an upper arc is called from the arc vertex of the inner wall of the ceramic cavity to the arc of the upper opening, a lower arc is called from the arc vertex of the inner wall of the ceramic cavity to the arc of the lower opening, and the ratio of the arc length of the upper arc to the arc length of the lower arc is 1.1-2: 1.

preferably, the ratio of the arc length of the upper arc to the arc length of the lower arc is 1.2: 1.

Preferably, the diameter of the upper opening is smaller than the distance from the spherical center of the ceramic cavity to the inner wall of the ceramic cavity, and the diameter of the lower opening is smaller than the distance from the spherical center of the ceramic cavity to the inner wall of the ceramic cavity.

Preferably, the ratio of the diameter of the upper opening to the diameter of the lower opening is 1:1.1 to 1.3.

Preferably, the ratio of the diameter of the upper opening to the diameter of the lower opening is 1: 1.1.

Preferably, the speaker is fixedly connected to the upper opening.

According to the preferable scheme, the loudspeaker comprises a cover plate and a loudspeaker body fixed on the cover plate, meshes are arranged on the surface of the cover plate, two side edges of the cover plate are provided with downward bent folded edges, contact edges are horizontally bent on the folded edges, an installation position is formed between the contact edges and the folded edges, and an installation part matched with the installation position is arranged on the inner wall of the upper end of the ceramic cavity.

Adopt above-mentioned scheme, be located the installation department on the upper shed inner wall through the installation and carry out mutual cooperation for simple to operate and firm more can avoid causing droing of apron at the in-process that uses the audio amplifier, and the setting of apron can prevent external dust or impurity from entering into ceramic chamber effectively simultaneously, thereby influences the tone quality of audio amplifier.

As a preferred scheme, the ceramic bottom cover further comprises a circuit board and a battery which are positioned in the ceramic cavity, wherein an upward extending mounting column is arranged on the inner surface of the bottom cover, a threaded hole is formed in the mounting column, a mounting hole matched with the threaded hole is formed in the circuit board, and the battery is electrically connected with the circuit board; the circuit board is provided with a charging socket for charging the battery, and the bottom cover is provided with a charging hole for the charging socket to extend out.

Adopt above-mentioned scheme, with the screw hole on the mounting hole alignment erection column on the circuit board, then pass mounting hole and screw hole respectively through the screw and fix the circuit board on the internal surface of bottom, the installation or dismantle convenient, avoided causing droing of circuit board at the in-process that uses, pass the hole of charging simultaneously through charging plug and insert charging socket in to carry out timely charging for the battery, ensure the use that the audio amplifier can be normal.

Preferably, the box body further comprises a supporting seat connected with the box body, a circular groove is formed in the upper portion of the supporting seat, and the circular groove is consistent with the bottom cover in shape and size.

By adopting the scheme, the ceramic loudspeaker box is conveniently fixed, the damage to the ceramic cavity caused in the use process is avoided, and a certain protection effect can be effectively realized.

Compared with the prior art, the beneficial effects of the utility model are that: through with the speaker, circuit board and battery are fixed in the ceramic chamber, and cover ceramic chamber through top cap and bottom, make ceramic chamber form a cavity, circuit board control speaker carries out the broadcast of music, ceramic chamber compares traditional wooden or plastics sound chamber and does not have toughness, can not cause the disappearance of audio frequency, it is all fine to high and medium low frequency sound reaction, the low frequency is muddy heavy, the intermediate frequency is happy, the high frequency is crisp and loud, simultaneously because the die cavity in the ceramic mould is processed easily, can produce different figurative audio amplifier, the outward appearance is more pleasing to the eye.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

Fig. 2 is a schematic diagram of the ceramic cavity in the ceramic speaker of the present invention.

Fig. 3 is a front view of the ceramic cavity of the ceramic speaker of the present invention.

Fig. 4 is an internal schematic view of the ceramic speaker of the present invention.

Fig. 5 is a schematic view at a in fig. 4.

Fig. 6 is a schematic view of the bottom cover.

FIG. 7 is a schematic view of example 4.

Fig. 8 is a schematic view of the support base.

Fig. 9 is a horn impedance plot.

FIG. 10 is a graph of the frequency response of the horn on the baffle.

Fig. 11 is a frequency response curve of a horn on a ceramic speaker.

1-a ceramic cavity; 11-upper opening; 12-lower opening; 13-centre of sphere; 14-an upper cavity; 15-lower cavity; 16-upper arc length; 17-lower arc length; 2-a loudspeaker; 21-a loudspeaker body; 22-a cover plate; 221-folding edges; 222-a contact edge; 3-bottom cover; 31-mounting posts; 32-a threaded hole; 33-a charging aperture; 4-a circuit board; 5-a battery; 6-an installation part; 7-a support seat; 71-circular slot.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 and 2, a ceramic sound box includes a box body, a speaker 2, a circuit board 4 and a battery 5, wherein the box body includes a spherical cavity 1 and a bottom cover 3, the cavity is a ceramic cavity 1, the bottom cover 3 and the speaker 2 are respectively mounted at two ends of the ceramic cavity 1, the speaker 2, the circuit board 4 and the battery 5 are all located in the ceramic cavity 1, the ceramic cavity 1 is divided into an upper cavity 14 and a lower cavity 15 by a horizontal cross section passing through a spherical center of the ceramic cavity 1, and a projection area of the upper cavity on a vertical plane is larger than a projection area of the lower cavity on the vertical plane; an upper opening 11 is formed in the upper end of the upper cavity 14, the diameter of the upper opening 11 is smaller than the distance from the spherical center of the ceramic cavity 1 to the inner wall of the ceramic cavity 1, and the diameter of the lower opening 12 is smaller than the distance from the spherical center of the ceramic cavity 1 to the inner wall of the ceramic cavity 1; an arc from the arc vertex of the inner wall of the ceramic cavity 1 to the upper opening 11 is called an upper arc 16, and an arc from the arc vertex of the inner wall of the ceramic cavity 1 to the lower opening 12 is called a lower arc 17, wherein the arc vertex is the vertex of an arc formed when the cross section of the ceramic cavity 1 in the vertical direction is projected to a plane; the area of the upper cavity projected on the vertical surface is the area enclosed by the upper arc and the upper opening when the upper cavity is projected on the vertical surface, and the area enclosed by the lower arc and the lower opening when the lower cavity is projected on the vertical surface.

The loudspeaker 2 and the bottom cover 3 are respectively installed on the upper opening 11 and the lower opening 12, the loudspeaker 4 is fixed on the upper portion of the upper cavity 14, the loudspeaker 4 is electrically connected with the circuit board 4, the circuit board 4 is fixed on the inner surface of the bottom cover 3, the battery 5 is electrically connected with the circuit board 4, a charging socket (not shown) used for charging the battery is arranged on the circuit board 4, and a charging hole 33 for the charging socket to extend out is formed in the bottom cover 3.

The structure of the circuit board 4 fixed on the bottom cover 3 is as follows: an upwardly extending mounting post 31 is arranged on the inner surface of the bottom cover 3, a threaded hole 32 is arranged in the mounting post 31, and a mounting hole (not shown) matched with the threaded hole 3 is arranged on the circuit board 4.

The structure of the speaker 2 mounted in the upper opening 11 is: the loudspeaker 2 comprises a cover plate 21, wherein meshes are arranged on the surface of the cover plate 21, two side edges of the cover plate 21 are provided with folded edges 221 which are bent downwards, the folded edges 221 are horizontally bent to form contact edges 222, an installation position is formed between the contact edges 222 and the folded edges 221, and an installation part 6 matched with the installation position is arranged on the inner wall of the upper opening 11.

In the present embodiment, the ratio of the arc length of the upper arc 16 to the arc length of the lower arc 17 is 1.5:1, and the ratio of the diameter of the upper opening 11 to the diameter of the lower opening 12 is 1: 1.3.

The method comprises the steps of manufacturing a ceramic cavity by ceramic raw materials according to the parameter that the arc length ratio of an upper arc to a lower arc is 1.5:1, and the diameter ratio of an upper opening to a lower opening is 1:1.3, fixing a loudspeaker 4 at the upper opening 11 of the ceramic cavity 1, covering the upper opening 11 through a top cover 2, fixing a circuit board 4 on a bottom cover 3, fixing the circuit board 4, installing the bottom cover 3 at a lower opening 12 to enable the ceramic cavity 1 to form a cavity, completing assembly of the ceramic sound box, testing the tone quality of the ceramic sound box through a professional instrument after the ceramic sound box is assembled, wherein the test result is shown in table 1.

Example 2

This example differs from example 1 in that: the ratio of the arc length of the upper arc 16 to the arc length of the lower arc 17 is 1.2:1, and the ratio of the diameter of the upper opening 11 to the diameter of the lower opening 12 is 1: 1.1.

The method comprises the steps of manufacturing a ceramic cavity 1 by ceramic raw materials according to the parameter that the arc length ratio of an upper arc 16 to a lower arc 17 is 1.2:1, and the diameter ratio of an upper opening 11 to a lower opening 12 is 1:1.1, fixing a loudspeaker 5 on the upper opening 11 of the ceramic cavity 1, covering the upper opening 11 through a top cover 2, fixing a circuit board 4 on a bottom cover 3, fixing the circuit board 4, installing the bottom cover 3 on the lower opening 12 to enable the ceramic cavity 1 to form a closed cavity, completing assembly of the ceramic sound box, testing the tone quality of the ceramic sound box through a professional instrument after the ceramic sound box is assembled, wherein the test result is shown in table 1.

Example 3

This example differs from example 1 in that: the ratio of the arc length of the upper arc 16 to the arc length of the lower arc 17 is 1.3:1, and the ratio of the diameter of the upper opening 11 to the diameter of the lower opening 12 is 1: 1.2.

The method comprises the steps of manufacturing a ceramic cavity 1 by ceramic raw materials according to the parameter that the arc length ratio of an upper arc 16 to a lower arc 17 is 1.3:1, and the diameter ratio of an upper opening 11 to a lower opening 12 is 1:1.2, fixing a loudspeaker 4 on the upper opening 11 of the ceramic cavity 1, covering the upper opening 11 through a top cover 2, fixing a circuit board 4 on a bottom cover 3, fixing the circuit board 4, installing the bottom cover 3 on the lower opening 12 to enable the ceramic cavity 2 to form a cavity, completing assembly of the ceramic sound box, testing the tone quality of the ceramic sound box through a professional instrument after the ceramic sound box is assembled, wherein the test result is shown in table 1.

Example 4

This example differs from example 1 in that: the support base is characterized by further comprising a support base 8 connected with the box body, a circular groove 71 is formed in the upper portion of the support base 7, and the circular groove 71 is consistent with the bottom cover 3 in shape and size; after the assembled ceramic sound box is opened through the switch, the circuit board 4 controls the loudspeaker 4 to play music, and at the moment, the ceramic sound box can be fixed on the supporting seat 7 only by enabling the bottom cover 3 to be aligned to the circular groove 81, so that the ceramic sound box is prevented from being damaged by the ceramic cavity 1 in the use process, and a certain protection effect can be effectively realized.

Comparative example 1

Comparative example 1 differs from example 1 in that: the ratio of the arc length of the upper arc 16 to the arc length of the lower arc 17 is 2.2:1, and the ratio of the diameter of the upper opening 11 to the diameter of the lower opening 12 is 1: 1.4.

Comparative example 2

Comparative example 2 differs from example 1 in that: the ratio of the arc length of the upper arc 16 to the arc length of the lower arc 17 is 1:1, and the ratio of the diameter of the upper opening 11 to the diameter of the lower opening 12 is 1:1.

Comparative example 3

Comparative example 3 differs from example 1 in that: the ceramic cavity is replaced by a common plastic cavity, the cavity is manufactured according to the conditions that the ratio of the arc length of an upper arc to the arc length of a lower arc is 1.2:1, and the ratio of the diameter of an upper opening to the diameter of a lower opening is 1:1.1, then the loudspeaker, the circuit board and the battery are installed in the cavity, and the cavity is covered by the top cover and the bottom cover to form a cavity.

Table 1 test results of examples and comparative examples:

as can be seen from table 1, the span of the audio frequencies of embodiments 1 to 3 is significantly better than that of comparative example 1 and comparative example 2, which indicates that the ceramic cavity manufactured by the ceramic sound box of the present application according to the parameters described above enables the sound box to have a wider audio frequency without causing audio frequency loss, so that the ceramic cavity resonates with sound, and the sound quality effect is better; compared with the comparative example 3, the sound box has the advantages that the sound box has wider audio frequency by adopting the ceramic cavity, the cavity can better resonate with sound, and better tone quality can be achieved by comparing the embodiments 1-3 with the comparative example 3; while the parameters of the ceramic chamber are optimal in example 2, outside this range, either less than or greater than the range described in the examples, the sound quality is not optimal.

As can be seen from fig. 9, there is substantially no low frequency when the horn is not placed in the ceramic cavity.

As can be seen from fig. 10 and 11, when the speaker is placed in the ceramic cavity, the middle-low frequency is significantly improved, the audio frequency is wider, and the audio frequency is not lost, compared with the case of testing on the barrier plate, so that the ceramic cavity resonates with sound, and the tone quality effect is better.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a ceramic loudspeaker box, includes box and speaker, the box includes spherical cavity and bottom, the both ends at the cavity are installed respectively to bottom and speaker, its characterized in that: the cavity is a ceramic cavity, the ceramic cavity is divided into an upper cavity and a lower cavity by a horizontal plane passing through the sphere center of the ceramic cavity, and the area of the projection of the upper cavity on the vertical surface is larger than that of the projection of the lower cavity on the vertical surface.

2. The ceramic loudspeaker of claim 1, wherein: the upper end of going up the cavity is equipped with the upper shed, the lower extreme of cavity is equipped with the under shed down, by the circular arc summit of ceramic cavity inner wall calls the circular arc to the upper shed's circular arc, by the circular arc summit of ceramic cavity inner wall calls the circular arc down to the under shed's circular arc, the arc length of going up the circular arc is 1.1 ~ 2 with the arc length's of circular arc down the ratio: 1.

3. the ceramic loudspeaker of claim 2, wherein: the ratio of the arc length of the upper arc to the arc length of the lower arc is 1.2: 1.

4. The ceramic loudspeaker of claim 2, wherein: the diameter of the upper opening is smaller than the distance from the spherical center of the ceramic cavity to the inner wall of the ceramic cavity, and the diameter of the lower opening is smaller than the distance from the spherical center of the ceramic cavity to the inner wall of the ceramic cavity.

5. The ceramic loudspeaker of claim 4, wherein: the ratio of the diameter of the upper opening to the diameter of the lower opening is 1:1.1 to 1.3.

6. The ceramic loudspeaker of claim 5, wherein: the ratio of the diameter of the upper opening to the diameter of the lower opening is 1: 1.1.

7. The ceramic loudspeaker of claim 2, wherein: the loudspeaker is fixedly connected to the upper opening.

8. The ceramic loudspeaker of claim 7, wherein: the loudspeaker comprises a cover plate and a loudspeaker body fixed on the cover plate, wherein meshes are arranged on the surface of the cover plate, two side edges of the cover plate are provided with downward bent hems, contact edges are horizontally bent on the hems, an installation position is formed between the contact edges and the hems, and an installation part matched with the installation position is arranged on the inner wall of the upper end of the ceramic cavity.

9. The ceramic loudspeaker of claim 1, wherein: the ceramic bottom cover is characterized by also comprising a circuit board and a battery which are positioned in the ceramic cavity, wherein the inner surface of the bottom cover is provided with an upward extending mounting column, a threaded hole is formed in the mounting column, a mounting hole matched with the threaded hole is formed in the circuit board, and the battery is electrically connected with the circuit board; the circuit board is provided with a charging socket for charging the battery, and the bottom cover is provided with a charging hole for the charging socket to extend out.

10. The ceramic loudspeaker of claim 1, wherein: the supporting seat is connected with the box body, a circular groove is formed in the upper portion of the supporting seat, and the circular groove is consistent with the bottom cover in shape and size.