CN215345037U - Large dynamic pressure relief type phase-reversing tube and phase-reversing box - Google Patents

Abstract

The utility model discloses a large dynamic pressure relief type inverter tube and an inverter box, wherein the inverter tube is arranged in the inverter box and comprises a tube body, a first cavity is arranged in the tube body, first openings communicated with the first cavity are formed in the upper side end face and the lower side end face of the tube body, an elastic element used for buffering pressure is covered on each first opening, a second opening communicated with the cavity is formed in the middle of each elastic element, and a pressure relief block used for relieving pressure is covered on each second opening. In the utility model, the pressure relief block is acted by the pressure in the phase inverter box to drive the elastic element to deform, thereby reducing the pressure of the phase inverter tube, reducing the wind speed and effectively reducing the wind noise.

Description

Large dynamic pressure relief type phase-reversing tube and phase-reversing box

Technical Field

The utility model relates to the technical field of sound equipment, in particular to a large dynamic voltage-relief type phase inverter tube and a phase inverter box.

Background

Along with the improvement of living standard of people, a plurality of music enthusiasts and audio fever riders pay attention to the quality of the audio. Generally, in order to avoid the low-frequency sound pressure drop and resonance imbalance of a loudspeaker caused by air leakage of a sound box, the sound box is generally a closed box body, when the sound box is in a working state, a loudspeaker diaphragm can continuously vibrate back and forth, pressure can be generated in the box, when pressure in the box passes through an inverter tube, the inverter tube can generate air flow, particularly when the sound box plays music in a large dynamic state, the air flow speed can reach 3.4 m/s, so that the inverter tube can generate obvious wind noise, the sound quality of the sound box is affected, and the sound quality becomes impure, in order to solve the problem, designers of sound box systems begin to utilize various methods to solve the problem, some sound-absorbing materials are adhered on the wall of the inverter tube, the sound-absorbing materials can play good effects, but the cost and the actual operation become more complicated, and the requirement on the adhering process of the sound-absorbing materials is high, it is easy to bring some unnecessary noise waves, and the sound quality is also impure.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a large dynamic voltage-relief inverter tube, which can solve the problem that the inverter tube is easy to generate wind noise, which affects the sound quality of the sound box itself and makes the sound quality impure.

The utility model also aims to provide a large dynamic voltage-relief type inverter box, which can solve the problem that the inverter tube is easy to generate wind noise, influences the tone quality of a sound box and changes the tone quality.

In order to achieve one of the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides a big developments pressure relief formula paraphase pipe, includes that inside is provided with the body of first cavity, the upper and lower both sides terminal surface of body all is provided with the intercommunication the first opening of first cavity, first opening covers and is stamped the elastic element who is used for buffer pressure, the intercommunication has been seted up at the elastic element middle part the second opening of cavity, the second opening covers and is stamped the release piece that is used for the release.

Preferably, the elastic element is an elastic rubber ring.

Preferably, the pressure relief block is an aluminum block.

In order to achieve the second purpose, the technical scheme adopted by the utility model is as follows:

a large dynamic voltage-relief type phase inverter box is characterized in that: including foretell big developments discharge type paraphase pipe, inside be provided with the box of second cavity and the bass unit that is used for carrying out the bass broadcast, one side of box is provided with the third opening of intercommunication second cavity, the bass unit with third opening sealing connection, big developments discharge type paraphase pipe sets up in the second cavity.

Preferably, the device further comprises a mesh cover covering the third opening.

Preferably, a first air guide hole is formed in the pipe wall of one side of the pipe body, a second air guide hole is formed in the end face, away from the third opening, of one side of the box body, and the second air guide hole is communicated with the first cavity through the first air guide hole.

Compared with the prior art, the utility model has the beneficial effects that: the pressure relief of the air pressure generated in the inverter box is carried out through the elastic material and the pressure relief block on the inverter tube, and particularly, when the air pressure generated in the inverter box is small, the elastic material is not deformed, so that the acoustic resonance frequency generated by the inverter tube and the box body of the box body can be kept; when the air pressure generated in the inverter box is larger, the pressure relief block is influenced by pressure and moves towards the direction with smaller pressure to drive the elastic material to deform, so that the pressure of the inverter tube is reduced, and the air speed is reduced, so that no wind noise is generated in the inverter tube.

Drawings

FIG. 1 is a schematic diagram of a large dynamic stress relief inverter box according to the present invention.

FIG. 2 is a schematic diagram of a large dynamic stress relief inverter according to the present invention.

In the figure: 1-a pipe body; 2-a resilient element; 3-unloading the briquette; 4-a mesh enclosure; 5-a bass unit; 6-box body.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model will be further described with reference to the accompanying drawings and the detailed description below:

as shown in fig. 1-2, a large dynamic pressure-relief type phase inverter box includes a box body 6 having a second chamber therein, a large dynamic pressure-relief type phase inverter tube disposed in the second chamber, and a bass unit 5 (i.e. a loudspeaker) for performing bass broadcasting, wherein one side of the box body 6 is provided with a third opening communicated with the second chamber, the third opening is used for installing the bass unit 5, so as to avoid air leakage, low-frequency sound pressure drop and resonance imbalance, the bass unit 5 is hermetically connected with the third opening, so that the second chamber maintains a sealed state, preferably, the large dynamic pressure-relief type phase inverter box further includes a mesh enclosure 4, and the mesh enclosure 4 covers the third opening, i.e. the bass unit 5 is covered, so as to avoid the bass unit 5 from being damaged. Specifically, as shown in fig. 2, the large dynamic pressure relief type inverter tube includes a tube body 1 having a first cavity therein, wherein first openings communicating with the first cavity are disposed on end surfaces of upper and lower sides of the tube body 1, the first opening is covered with an elastic element 2 for buffering pressure, a second opening communicating with the cavity is disposed in a middle of the elastic element 2, the second opening is covered with a pressure relief block 3 for relieving pressure, preferably, the elastic element 2 is an elastic rubber ring, the pressure relief block 3 is an aluminum block, and a first air guide hole is disposed on a tube wall of one side of the tube body 1. In this embodiment, first opening has all been seted up at the middle part of body 1 upside terminal surface and downside terminal surface, and first opening passes through elastic rubber circle and aluminium pig sealing connection, and first air guide hole has been seted up to one side pipe wall of body 1, box 6 keeps away from a side end face of third open-ended and has seted up the second air guide hole, the second air guide hole is through first air guide hole and first cavity intercommunication. Namely, the second air guide hole, the first air guide hole, the elastic rubber ring, the aluminum block and the tube body 1 form an inverting channel, according to the principle of Helmholtz resonator, the sound wave emitted from the back of the bass unit 5 passes through the inverting tube to be inverted, so that the sound wave is superposed with the sound wave emitted from the front of the loudspeaker to become in-phase radiation, namely, the inverter box inverts the sound wave behind the bass unit 5 by virtue of the air in the box body 6 and the vibration of the air column in the inverting tube and by virtue of the reflection action of the inverting tube, and transmits the part of the sound wave out through the inverting channel, so that the part of the sound wave is in phase with the sound wave directly emitted by the bass unit 5, and the low-frequency radiation energy is increased. In the process, according to the fact that the sound wave is fluid and follows the transmission characteristic of pressure through the shortest (minimum resistance) path, the end face formed by the elastic rubber ring and the aluminum block is most easily influenced by the pressure in the second cavity, when the air pressure is small, the elastic rubber ring does not deform, and the acoustic resonant frequency of the phase inversion tube and the box body 6 of the box body 6 can be kept; when the air pressure is larger, the aluminum block is influenced by the pressure, the whole aluminum block moves towards the direction with smaller pressure, and the elastic rubber ring is driven to deform, so that the pressure of the phase inverter tube is reduced, the air speed is reduced, and the phase inverter tube also has no wind noise when the bass unit 5 plays music in a large dynamic state.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims (6)

1. A large dynamic pressure relief type phase inverter tube is characterized in that: the pressure relief device comprises a pipe body, wherein a first cavity is arranged inside the pipe body, first openings communicated with the first cavity are formed in the end faces of the upper side and the lower side of the pipe body, an elastic element used for buffering pressure covers the first openings, a second opening communicated with the cavity is formed in the middle of the elastic element, and a pressure relief block used for relieving pressure covers the second opening.

2. The large dynamic stress relief inverter tube of claim 1, wherein: the elastic element is an elastic rubber ring.

3. The large dynamic stress relief inverter tube of claim 1, wherein: the pressure relief block is an aluminum block.

4. A large dynamic voltage-relief type phase inverter box is characterized in that: the large dynamic pressure relief type phase inverter tube comprises the large dynamic pressure relief type phase inverter tube as claimed in any one of claims 1-3, a box body with a second chamber arranged inside, and a bass unit for performing bass broadcasting, wherein a third opening communicated with the second chamber is arranged on one side of the box body, the bass unit is connected with the third opening in a sealing mode, and the large dynamic pressure relief type phase inverter tube is arranged in the second chamber.

5. The large dynamic load-drop inverter box of claim 4, wherein: still include the screen panel, the screen panel covers on the third opening.

6. The large dynamic load-drop inverter box of claim 4, wherein: a first air guide hole is formed in the pipe wall of one side of the pipe body, a second air guide hole is formed in the end face, away from the third opening, of one side of the box body, and the second air guide hole is communicated with the first cavity through the first air guide hole.

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