CN212850975U - Sound box with adjustable phase-reversing tube caliber - Google Patents

Abstract

The utility model discloses a sound box with adjustable caliber of an inverted tube, which comprises a box body, a loudspeaker, an inverted tube and a valve; a first opening is formed in the first side face of the box body, and a second opening is formed in the second side face of the box body; one end of the phase inverter tube is connected to the second opening of the box body, and the other end of the phase inverter tube is suspended in the box body; one end of the phase inverter tube, which is connected with the box body, is provided with an external opening, and the external opening of the phase inverter tube is exposed out of the second side surface of the box body; the valve is movably mounted on the second side of the box body. Because the second side surface of the box body is provided with the movable valve, the opening area of the external opening of the phase reversal pipe can be adjusted by moving the valve, so that the sound box can be switched between a closed box type sound box and a phase reversal type sound box very quickly, and no matter a sound box development engineer or an end user can conveniently adjust the tone quality of the phase reversal type sound box/the closed box type sound box; in addition, the sound box can realize the adjustment of the sound quality on the basis of not needing to replace the inverter tube.

Description

Sound box with adjustable phase-reversing tube caliber

Technical Field

The utility model relates to a sound box, concretely relates to sound box of adjustable paraphase pipe bore.

Background

The phase inversion type loudspeaker box is a loudspeaker box with a phase inversion tube on a loudspeaker box panel. The working principle of the phase inversion type sound box is as follows: when the loudspeaker monomer works, sound waves radiated from the back are radiated to the front through the phase inverter tube, are superposed with the sound waves in front of the loudspeaker monomer, and then are radiated forwards together, so that the low-frequency effect is enhanced.

The phase inversion type sound box is the most common box design in the current multimedia sound box. Although the phase inversion type speaker has the advantages of high efficiency, good low frequency characteristics, small volume, etc., it has disadvantages, mainly due to the difficulty in design, manufacture and adjustment. For example, the inverter tube opening area cannot be made too large for efficiency alone, or peaks may form; too small openings tend to create problems with too heavy bass or slower speeds, and may also cause problems with too loud airflow. The opening area of the traditional inverter tube is generally fixed, and only the inverter tube with different opening areas is continuously replaced when the sound box is debugged. This process of replacing an inverter tube is very time and material consuming.

Disclosure of Invention

The utility model provides a sound box of adjustable paraphase pipe bore.

In one embodiment, an acoustic enclosure with an adjustable inverter tube caliber is provided, comprising:

the first side surface of the box body is provided with a first opening, and the second side surface of the box body is provided with a second opening;

the loudspeaker is provided with a playing end and a tail end, the playing end of the loudspeaker is connected to the first opening of the box body, the tail end of the loudspeaker is located in the box body, and the playing end of the loudspeaker is exposed out of the first side face of the box body;

one end of the inverter tube is connected to the second opening of the box body, and the other end of the inverter tube is suspended in the box body; one end of the phase reversing tube connected with the box body is provided with an external opening, and one end of the phase reversing tube positioned in the box body is provided with an internal opening; the outer opening of the phase reversal pipe is exposed on the second side surface of the box body;

and a valve movably mounted on the second side of the case, the valve being movable to cover the outer opening of the inverter tube, the valve being for adjusting an opening area of the outer opening of the inverter tube.

Furthermore, the valve is a circular plate, the circular outer diameter of the valve is larger than the outer diameter of the outer opening of the phase inversion pipe, and the position, close to the edge, of the valve is connected with the second side face of the box body through a rotating shaft.

Further, the rotating shaft is a damping shaft, so that the valve can stay at any rotating position.

Furthermore, a sliding rail or a sliding groove is arranged on the second side surface of the box body, and the valve can be slidably arranged in the sliding rail or the sliding groove.

Further, the first side and the second side of the box body are two adjacent sides.

According to the loudspeaker box with the adjustable caliber of the phase reversal pipe, the movable valve is arranged on the second side surface of the box body, and the opening area of the external opening of the phase reversal pipe can be adjusted by moving the valve, so that the loudspeaker box can be switched between a closed loudspeaker box and a phase reversal loudspeaker box very quickly, and no matter a loudspeaker box development engineer or an end user can conveniently adjust the tone quality of the phase reversal loudspeaker box/the closed loudspeaker box; in addition, the sound box can realize the adjustment of the sound quality on the basis of not needing to replace the inverter tube, thereby reducing the manufacturing cost.

Drawings

FIG. 1 is a schematic structural diagram of a sound box according to an embodiment;

fig. 2 is a sectional view of an acoustic enclosure in an embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The embodiment provides a sound box with an adjustable caliber of a phase inverter tube, and the opening area of the opening of the phase inverter tube of the sound box is adjustable, so that the sound box can realize high-quality playing through adjustment.

As shown in fig. 1, the sound box of the present embodiment mainly includes a box 10, a speaker 20, an inverter tube 30, and a valve 40, and the speaker 20, the inverter tube 30, and the valve 40 are mounted on the box 10.

The box 10 is a cuboid structure, and the box 10 has 6 sides, has the holding chamber in the box 10. The housing 10 may be provided in other configurations, such as a cylindrical or multi-curved body. For convenience of description, the top surface of the cabinet 10 is defined as a first side surface 11, and the front surface of the cabinet 10 is defined as a second side surface 12, wherein the top surface and the front surface are in the orientation shown in fig. 1, and in actual use, the sound box can be placed and used with the other side surfaces except the first side surface and the second side surface as the bottom surface. The first side 11 of the box 10 is provided with a circular first opening, and the second side 12 of the box 10 is provided with a circular second opening, wherein the size of the first opening is matched with the loudspeaker 20, and the size of the second opening is matched with the inverter tube 30.

As shown in fig. 2, the speaker 20 is an existing mature audio playing unit for playing audio, the speaker 20 has a playing end 21 and a tail end 22, the tail end of the speaker 20 is mounted on the first opening of the box 10 by a screw or a buckle, the tail end 22 of the speaker 20 is located in the accommodating cavity of the box 10, and the playing end 21 of the speaker 20 is exposed on the first side 11 of the box 10. The second side 12 of the box 10 is provided with a terminal 23, the terminal 23 is connected with the tail end 22 of the horn 20 through a cable, and the terminal 23 is an external terminal of the horn 20.

The inverter tube 30 is a tubular structure with openings at two ends, one end of the inverter tube 30 is installed on the second opening of the box 10, the other end of the inverter tube 30 is located in the containing cavity of the box 10, and the inverter tube 30 is horizontally suspended in the box 10. The opening of the inverter tube 30 at the end connected to the second opening is an outer opening, which is exposed on the second side 12 and communicates with the outside, and the opening of the inverter tube 30 at the end located inside the case 10 is an inner opening. The horn 20 is positioned away from the second side 12 such that the horn 20 is offset from the inverter tube 30 and the inner opening of the horn 20 is directed below the rear end of the horn 20.

The valve 40 is a circular plate, the valve 40 is rotatably mounted on the second side 12 of the housing 10 by a rotating shaft 41, the rotating shaft 41 is connected at a position close to the edge of the second opening, the rotating shaft 41 is also connected at the edge of the valve 40, the circular outer diameter of the valve 40 is larger than the outer diameter of the second opening, that is, the circular outer diameter of the valve 40 is larger than the outer diameter of the outer opening of the inverter tube 30, so that the valve 40 can be freely adjusted between two limit positions of completely covering the outer opening of the inverter tube 30 and completely avoiding the outer opening of the inverter tube 30. When the valve 40 is adjusted to completely cover the outer opening of the inverter tube 30, the sound box is closed; when the valve 40 is adjusted to partially cover the outer opening of the inverter tube 30, the enclosure is an inverter tube type enclosure. The closed box and the inverted tube type sound box can realize different playing effects, and users can switch and use the sound box at will.

In this embodiment, the rotating shaft 41 is a damping shaft, for example, one end of the rotating shaft 41 is fixed on the second side surface 12 of the box 10, the other end of the rotating shaft 41 is provided with a knurled structure, the valve 40 is connected with one end of the rotating shaft 41 with the knurled structure, damping friction is formed between the knurled structure and the valve 40, damping rotation connection between the valve 40 and the rotating shaft 41 is realized, and then the valve 40 can hover at any rotation position. The damping shaft can also be of other damping structures, for example, a damping spring is arranged between two ends of the damping shaft, the two ends of the damping shaft can realize damping rotation relatively, and the two ends of the damping shaft are respectively connected with the valve 40 and the box body 10, so that the valve 40 can be suspended randomly.

In other embodiments, the second side 12 of the housing 10 is provided with a slide rail or a slide groove, the slide rail or the slide groove is of a dovetail structure, the valve 40 is provided with a dovetail-shaped connecting terminal, the valve 40 is slidably mounted on the slide rail or the slide groove of the second side 12 through the connecting terminal, and the sliding valve 40 can also adjust the opening area of the outer opening of the inverter tube 30. The knurling or the rubber layer with friction is arranged between the connecting terminal of the valve 40 and the sliding rail or the sliding groove, so that the valve 40 can slide in a damping mode, and can be suspended at any sliding position.

In the sound box with the adjustable caliber of the inverter tube of the embodiment, the movable valve 40 is installed on the second side surface 12 of the box body 10, and the opening area of the external opening of the inverter tube 30 can be adjusted by moving the valve 40, so that the sound box can be switched between a closed box type sound box and an inverter type sound box very quickly, and no matter a sound box development engineer or an end user can conveniently adjust the tone quality of the inverter type sound box/the closed box type sound box; in addition, the sound box can realize the adjustment of the sound quality on the basis of not needing to replace the inverter tube.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims (5)

1. A loudspeaker box with adjustable phase inverter tube caliber is characterized by comprising:

the refrigerator comprises a refrigerator body, a first side surface of the refrigerator body is provided with a first opening, and a second side surface of the refrigerator body is provided with a second opening;

the loudspeaker is provided with a playing end and a tail end, the playing end of the loudspeaker is connected to the first opening of the box body, the tail end of the loudspeaker is located in the box body, and the playing end of the loudspeaker is exposed out of the first side face of the box body;

one end of the phase inverter tube is connected to the second opening of the box body, and the other end of the phase inverter tube is suspended in the box body; one end of the phase inversion tube, which is connected with the box body, is provided with an outer opening, and one end of the phase inversion tube, which is positioned in the box body, is provided with an inner opening; the outer opening of the phase inversion tube is exposed out of the second side surface of the box body;

and the valve is movably arranged on the second side face of the box body, can be moved to cover the outer opening of the inverter tube and is used for adjusting the opening area of the outer opening of the inverter tube.

2. The adjustable inverter caliber loudspeaker in accordance with claim 1, wherein the valve is a circular plate having a circular outer diameter larger than the outer diameter of the outer opening of the inverter tube, and the valve is connected to the second side of the cabinet near the edge by a shaft.

3. The variable inverter tube caliber loudspeaker in accordance with claim 2, wherein said shaft is a damper shaft to allow said valve to remain in any rotational position.

4. The variable inverter tube caliber loudspeaker box of claim 1, wherein the second side of the box body is provided with a slide rail or a chute, and the valve is slidably mounted in the slide rail or the chute.

5. The variable inverter caliber loudspeaker in accordance with claim 1, wherein the first side and the second side of the enclosure are adjacent sides.

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