Bluetooth sound box

Abstract

The utility model discloses a bluetooth sound box, comprising a sound box main body and loudspeakers arranged symmetrically, the sound box main body is divided into two symmetrical resonance cavities by a separator plate; the front cover plate of the sound box main body is provided with two inverted holes and a sound outlet hole, and the two inverted holes are adjacent to each other. A loudspeaker mounting bracket and a baffle plate are fixedly arranged in the resonance cavity, the loudspeaker mounting bracket is parallel to the front cover plate, and the baffle plate is vertical to the loudspeaker mounting bracket and the front cover plate; the loudspeaker is fixedly arranged on the loudspeaker installation support, the front end of the loudspeaker faces the sound outlet hole, and the baffle extends in the direction where the rear end of the loudspeaker is located. The front end and the rear end of the vibrating diaphragm of the loudspeaker are separated by the loudspeaker mounting bracket and the baffle plate, so that the vibration of the rear end of the vibrating diaphragm of the loudspeaker is sent out only through the inverted hole, the volume of the Bluetooth sound box is reduced, the low frequency is increased as much as possible, and the layering sense of music is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of speakers, and in particular relates to a bluetooth speaker. Background Art

[0002] Bluetooth speakers are the application of Bluetooth technology to traditional digital and multimedia speakers, allowing users to avoid the entanglement of annoying wires and listen to music in various ways freely, while also being more portable. In order to facilitate portability, the size of the Bluetooth speaker needs to be reduced as much as possible to reduce the space and weight it occupies; however, conventional Bluetooth speakers simply reduce the size of the Bluetooth speaker, which results in a significant reduction in the volume of the resonance chamber, resulting in a significant increase in the high frequency of the Bluetooth speaker and a significant loss in the low frequency. When the music lacks low frequency, the sound will be dry and lack a sense of hierarchy. Summary of the invention

[0003] The utility model aims to provide a Bluetooth speaker, which aims to reduce the volume of the Bluetooth speaker while increasing the low frequency as much as possible and improving the layering of music.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] A Bluetooth speaker comprises a speaker body and symmetrically arranged speakers, wherein the speaker body is divided into two symmetrical resonance chambers by a partition; a reverse hole and a sound outlet hole are opened on the front cover plate of the speaker body, and the two reverse holes are adjacent to each other; a speaker mounting bracket and a baffle are fixedly arranged in the resonance chamber, the speaker mounting bracket is parallel to the front cover plate, and the baffle is perpendicular to the speaker mounting bracket and the front cover plate; the speaker is fixedly arranged on the speaker mounting bracket, with the front end facing the sound outlet hole, and the baffle extends in the direction of the rear end of the speaker; the speaker mounting bracket and the baffle separate the front end and the rear end of the diaphragm of the speaker, so that the vibration of the rear end of the diaphragm of the speaker is only sent out through the reverse hole.

[0006] On the basis of the above solution and as a preferred solution of the above solution: a decorative plate is fixedly provided on the front cover plate, and the decorative plate shields the outlet end of the sound outlet.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: a reverse pipe is fixedly installed on the reverse hole.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the speaker body is made of wood or plastic.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the front cover is detachably installed on the speaker body.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a rear cover plate, and the rear cover plate is detachably installed on the speaker body.

[0011] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: by changing the main structure of the Bluetooth speaker, for example, adopting a symmetrical independent resonance chamber structure, and adding an inverted hole structure to each resonance chamber, it effectively reduces the volume of the speaker while improving the loss of bass, maximizes the balance between bass and treble, increases the layering of music playback, and improves the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is the overall front view of the utility model;

[0014] Figure 3 yes Figure 2 Section view at AA in the figure. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of this application, not all embodiments. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0016] In the description of the present application, it should be understood that the terms "upper", "lower", etc. 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 application 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 a limitation on the present application.

[0017] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0018] See Figure 1-3As shown, the present application discloses a Bluetooth speaker, including a speaker body 10 and symmetrically arranged speakers 40, wherein the speaker body 10 is divided into two symmetrical first resonance chambers 10a and second resonance chambers 10b by a partition 13; specifically, a front cover plate 12 is detachably mounted on the speaker body 10; of course, it also includes a rear cover plate 11, which is detachably mounted on the speaker body 10. A reverse hole 122 and a sound outlet hole 121 are provided on the front cover 12 of the sound box body 10, and the two reverse holes 122 are adjacent to each other; specifically, a speaker mounting bracket 14 and a baffle 15 are respectively fixedly provided in the first resonance chamber 10a and the second resonance chamber 10b, the speaker mounting bracket 14 is parallel to the front cover 12, the baffle 15 is perpendicular to the speaker mounting bracket 14 and the front cover 12, and the four sides of the speaker mounting bracket 14 are respectively fixedly connected to the inner wall of the sound box body 10; a speaker mounting hole is provided on the speaker mounting bracket 14, and the speaker 40 is fixedly provided on the speaker mounting bracket 14, with the front end facing the sound outlet hole 121 and the rear end passing through the speaker mounting hole, wherein the baffle 15 extends in the direction of the rear end of the speaker 40; the speaker mounting bracket 14 and the baffle 15 separate the front end and the rear end of the diaphragm of the speaker 40, so that the vibration of the rear end of the diaphragm of the speaker 40 is only sent out through the reverse hole 122. Furthermore, in this embodiment, it is preferred that an inverted pipe 30 is fixedly mounted on the inverted hole 122. By installing the inverted pipe 30 and adjusting the depth of the inverted pipe 30 into the resonance cavity, the bass dive frequency can be effectively improved, thereby further optimizing the bass effect of the speaker. It is further preferred that the minimum distance between the end of the baffle 15 adjacent to the rear cover 11 and the rear cover 11 is not less than one-third of the minimum distance between the rear cover 11 and the front cover 12, and not more than one-half of the minimum distance between the rear cover 11 and the front cover 12. The size is adaptively adjusted according to the frequency response curve of the specific speaker, which can improve the low-frequency response of the Bluetooth speaker, thereby better balancing the treble and bass, and compensating for the problem of poor low-frequency response caused by the reduction in the volume of the Bluetooth speaker.

[0019] In addition, in order to protect the diaphragm of the speaker, in this embodiment, a decorative plate 20 is preferably fixed on the front cover plate 12, and the decorative plate 20 covers the outlet end of the sound outlet 121. There are multiple through holes evenly distributed on the decorative plate 20 to ensure that the sound of the diaphragm can be transmitted smoothly. Of course, considering the production of the speaker body 10, in this embodiment, the speaker body 10 is preferably made of wood or plastic, and the wood boards are cut according to the drawings and connected with glue and fasteners to be assembled; for plastic materials, each component can be obtained by injection molding, and then they are connected with glue or fasteners to obtain the speaker body.

[0020] Preferably, a layer of attractive sponge can be pasted on the inner surface of the speaker body to further optimize the bass response, thereby further enhancing the layering of the impact and the richness of the sound on the basis of the above, and improving the sound quality of the speaker.

[0021] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A Bluetooth speaker, comprising a speaker body (10) and symmetrically arranged speakers (40), characterized in that: The speaker body (10) is divided into two symmetrical resonance chambers by a partition (13); a reverse hole (122) and a sound outlet hole (121) are provided on the front cover (12) of the speaker body (10), and the two reverse holes (122) are adjacent to each other; a speaker mounting bracket (14) and a baffle (15) are fixedly provided in the resonance chamber, the speaker mounting bracket (14) is parallel to the front cover (12), and the baffle (15) is perpendicular to the speaker mounting bracket (14) and the front cover (12); the speaker (40) is fixedly provided on the speaker mounting bracket (14), with the front end facing the sound outlet hole (121), and the baffle (15) extends in the direction of the rear end of the speaker (40); the speaker mounting bracket (14) and the baffle (15) separate the front end and the rear end of the diaphragm of the speaker (40), so that the vibration of the rear end of the diaphragm of the speaker (40) is only sent out through the reverse hole (122).

2. A Bluetooth speaker according to claim 1, characterized in that: A decorative plate (20) is fixedly provided on the front cover plate (12), and the decorative plate (20) shields the outlet end of the sound outlet hole (121).

3. A Bluetooth speaker according to claim 1, characterized in that: A reverse pipe (30) is fixedly mounted on the reverse hole (122).

4. The Bluetooth speaker according to claim 1, characterized in that: The speaker body (10) is made of wood or plastic.

5. The Bluetooth speaker according to claim 1, characterized in that: The front cover plate (12) is detachably mounted on the sound box body (10).

6. The Bluetooth speaker according to claim 1, characterized in that: It also comprises a rear cover plate (11), wherein the rear cover plate (11) is detachably mounted on the sound box body (10).

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