Novel inverter tube structure of sound reinforcement loudspeaker system
By designing a new inverted phase tube structure in the sound reinforcement speaker system, using the front baffle, front port, inverted phase tube, reinforcement plate and balanced components, the inner and outer ports of the inverted phase tube are symmetrical, which solves the problems of airflow noise and injection vortex ring in traditional systems, achieving better sound quality and reducing losses.
Patent Information
- Application Number
- CN202421790058.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In traditional sound reinforcement speaker systems, a single-port inverted phase tube causes asymmetry between the internal and external ports, resulting in airflow noise and injection vortex ring phenomena, affecting sound quality and increasing losses.
A new inverted phase tube structure is designed. By setting up a front baffle, front port, inverted phase tube, reinforcement plate and balanced components in the audio box, the inner and outer ports of the inverted phase tube have acoustically symmetry, balance the alternating airflow, and reduce inverted phase loss.
The acoustic symmetry of the inner and outer ports of the inverted phase tube is realized, so that the alternating airflow works in a balanced state, eliminating or reducing inverted phase losses, improving sound quality and reducing costs.
Smart Images
Figure CN222996656U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sound reinforcement speaker systems, and particularly relates to a novel phase inverter structure of a sound reinforcement speaker system. Background Art
[0002] In traditional sound reinforcement speaker systems, a single-port phase inverter is generally adopted (see Figure 1 ). In traditional sound reinforcement speaker systems, the front baffle is equivalent to adding an outer flange to the phase inverter, but the inner port is in a free state, which will make the inner and outer ports of the phase inverter asymmetric, and this is the root cause of problems such as airflow noise and jet vortex ring phenomenon (see Figure 2 ). These problems not only affect the sound quality, but also cause greater losses to the phase inverter.
[0003] Therefore, it is necessary to invent a novel phase inverter structure for a sound reinforcement speaker system. Summary of the Invention
[0004] For this reason, the utility model provides a novel phase inverter structure for a sound reinforcement speaker system, so that the inner and outer ports of the phase inverter are acoustically symmetric, and the alternating airflow works in a balanced state, eliminating or reducing the phase inversion loss, so as to solve the problems raised in the above background art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A novel phase inverter structure for a sound reinforcement speaker system, including a sound box body, a front baffle is fixedly arranged on the front side inside the sound box body, a front port is opened at one end of the front baffle, a phase inverter is fixedly arranged at the rear end of the front baffle, the outer port of the phase inverter is communicated with the front port, a reinforcing plate is fixedly arranged in the middle inside the sound box body, and a balance component is fixedly arranged on the reinforcing plate.
[0006] Preferably, the balance component includes an inner baffle, the inner baffle is fixedly arranged at the end of the reinforcing plate, a rear port is opened on the inner baffle, and the inner port of the phase inverter is communicated with the rear port.
[0007] Preferably, a speaker is fixedly arranged on the front baffle, and the rear end of the speaker is fixedly connected with the reinforcing plate.
[0008] The beneficial effect of the utility model is: Through the combined use of the sound box body, the front baffle, the front port, the phase inverter, the reinforcing plate and the balance component, a balance component is added to the inner port of the phase inverter, so that the inner and outer ports of the phase inverter are acoustically symmetric, and the alternating airflow works in a balanced state, eliminating or reducing the phase inversion loss. The structure design is simple and the cost is low. Description of the Drawings
[0009] Figure 1 It is a schematic structural diagram of a single-port phase inverter in a traditional sound reinforcement speaker system;
[0010] Figure 2 Schematic diagram of the alternating air flow of a single-port inverted phase tube in a traditional sound reinforcement loudspeaker system;
[0011] Figure 3 Structural sectional view in the top view direction provided by the present utility model;
[0012] Figure 4 Schematic diagram of the alternating air flow of the inverted phase tube provided by the present utility model.
[0013] In the figure: 1, sound box; 2, front baffle; 3, front port; 4, inverted phase tube; 5, reinforcing plate; 6, inner baffle; 7, rear port; 8, loudspeaker. Specific embodiments
[0014] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.
[0015] Please refer to the attached Figures 1-4 , a novel inverted phase tube structure of a sound reinforcement loudspeaker system provided by the present utility model includes a sound box 1, a front baffle 2 is fixed to the front side inside the sound box 1, a front port 3 is opened at one end of the front baffle 2, an inverted phase tube 4 is fixed to the rear end of the front baffle 2, the outer port of the inverted phase tube 4 is communicated with the front port 3, a reinforcing plate 5 is fixed to the middle inside the sound box 1, and a balancing component is fixed to the reinforcing plate 5;
[0016] The balancing component includes an inner baffle, the inner baffle 6 is fixed to the end of the reinforcing plate 5, a rear port 7 is opened on the inner baffle 6, and the inner port of the inverted phase tube 4 is communicated with the rear port 7. Specifically, under the action of the inner baffle 6 and the rear port 7, the inner and outer ports of the inverted phase tube 4 are acoustically symmetrical, so that the alternating air flow works in a balanced state, eliminating or reducing the inverted phase loss. The structural design is simple and the cost is low;
[0017] A loudspeaker 8 is fixed to the front baffle 2, and the rear end of the loudspeaker 8 is fixedly connected to the reinforcing plate 5, effectively strengthening the mounting firmness of the loudspeaker 8.
[0018] The working principle of the present utility model: Under the action of the inner baffle 6 and the rear port 7, the inner and outer ports of the inverted phase tube 4 are acoustically symmetrical, so that the alternating air flow works in a balanced state, eliminating or reducing the inverted phase loss. The structural design is simple and the cost is low.
[0019] The above is only a preferred embodiment of the present utility model. Any person skilled in the art can modify the present utility model by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.
Claims
1. A novel inverted tube structure for a sound reinforcement loudspeaker system, comprising a sound box (1), characterized in that: A front baffle (2) is fixed to the front side of the interior of the sound box (1), a front port (3) is provided at one end of the front baffle (2), a reflex tube (4) is fixed to the rear end of the front baffle (2), an outer port of the reflex tube (4) is connected to the front port (3), a reinforcing plate (5) is fixed to the middle part of the interior of the sound box (1), and a balancing component is fixed on the reinforcing plate (5).
2. The novel inverted tube structure of a sound reinforcement loudspeaker system according to claim 1, characterized in that: The balancing component comprises an inner baffle plate, wherein the inner baffle plate (6) is fixed to the end of the reinforcing plate (5), a rear port (7) is provided on the inner baffle plate (6), and the inner port of the inverted tube (4) is connected to the rear port (7).
3. The novel inverted tube structure of a sound reinforcement loudspeaker system according to claim 1, characterized in that: A loudspeaker (8) is fixed on the front baffle (2), and a rear end of the loudspeaker (8) is fixedly connected to the reinforcing plate (5).