Sound box with Tesla valve sound tube

Abstract

The utility model discloses a sound box with a Tesla valve sound tube. An X device comprises a first cover body, a second cover body and a sound tube, the second cover body is combined with the first cover body, and a cavity is formed between the first cover body and the second cover body; the loudspeaker hole is formed in the first cover body or / and the second cover body; the sound tube is formed on the first cover body or / and the second cover body, the sound tube is provided with a groove-shaped tube body, an inner communication opening, an outer communication opening and a tube body sealing cover, only the outer communication opening of the sound tube is exposed, and a flow channel of a Tesla valve is formed in the groove-shaped tube body. Therefore, the utility model solves the problems of material consumption, increased assembly time and uncertain quality in the prior art, and has the effects of saving materials and assembly time and ensuring stable tone quality.

Description

Technical Field

[0001] This utility model relates to a speaker with a Tesla valve tube, and more particularly to a designer who forms a Tesla valve flow channel inside the tube. Background Technology

[0002] Conventional loudspeakers are usually housed inside a speaker enclosure, with only the speaker's sound-emitting surface protruding from the enclosure. The speaker enclosure is typically a chamber space composed of a first and second cover. When the loudspeaker operates, airflow is generated within this chamber space, interfering with the loudspeaker's operation and causing problems such as sound quality distortion and poor bass. Therefore, some people have installed a sound tube inside the speaker enclosure to connect the inside and outside of the loudspeaker and expel the airflow from the chamber. However, when the airflow enters the sound tube from the chamber, the flow velocity increases due to the small diameter of the sound tube, resulting in undesirable breathy sounds and causing sound quality distortion.

[0003] Therefore, to solve this problem, conventional designs usually add damping blocks (such as sponges) inside the sound tube to create resistance to the airflow and slow down the flow rate, and attach breathable mesh fabric at the outlet end to control the airflow rate and reduce the sound. However, this increases the cost of manual labor, such as attaching sponges, attaching breathable mesh fabric, and assembling the sound tube cover. This not only consumes materials but also increases assembly time and introduces uncertainties to the quality.

[0004] Furthermore, a Tesla valve is a device that reduces flow rate without moving parts; it slows down the flow rate of fluid by using a flow channel with a fixed geometry. Utility Model Content

[0005] The purpose of this invention is to solve the problems of material consumption, increased assembly time, and quality uncertainty in the prior art, and to achieve the effect of saving materials and assembly time while ensuring stable sound quality.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows, comprising: a first cover; a second cover, coupled to the first cover, with a cavity formed between the first cover and the second cover; a speaker hole formed in the first cover and / or the second cover; and a sound tube formed in the first cover and / or the second cover, the sound tube having a grooved tube body, an inner connecting port, an outer connecting port and a tube body cap, wherein only the outer connecting port of the sound tube is exposed, and a Tesla valve flow channel is formed inside the grooved tube body.

[0007] In addition, the Tesla valve flow channel has a plurality of flow splitting units arranged alternately on both sides. Each flow splitting unit has an outward expansion channel, an arc-shaped confluence channel and an island-shaped flow splitting block. The arc-shaped confluence channel is connected to the outward expansion channel, and the island-shaped flow splitting block is disposed on the inner side of the rear section of the outward expansion channel and the front side of the arc-shaped confluence channel. The front end of the island-shaped flow splitting block is a slope, and the rear end of the island-shaped flow splitting block is an arc.

[0008] The grooved tube body has a gradually narrowing inlet flow channel at the inner end of the Tesla valve flow channel, and a gradually expanding exhaust flow channel at the outer end of the Tesla valve flow channel.

[0009] The tube body cap is an independent capping plate; or, the grooved tube body and the tube body cap are formed opposite to the first cap and the second cap, the tube body cap is a capping platform attached to another cap relative to the grooved tube body, and the contact surface between the tube body cap and the grooved tube body has ultrasonic lines. Attached Figure Description

[0010] Figure 1 This is an external view of the first embodiment of the present invention;

[0011] Figure 2 This is an explanatory diagram of the first cover and sound tube structure of the first embodiment of this utility model;

[0012] Figure 3 This is an exploded view of the structure of the second embodiment of the present invention;

[0013] Figure 4 This is a structural cross-sectional view of the second embodiment of the present invention;

[0014] Figure 5 for Figure 4 Enlarged view of the structure at the circled annotation;

[0015] Figure 6 This is a top view of the Tesla valve flow channel structure inside the grooved pipe body of this utility model;

[0016] Explanation of markings in the diagram:

[0017] 10: First cover;

[0018] 11: Speaker hole;

[0019] 12: Speaker;

[0020] 20: Second cover;

[0021] 30: Chamber;

[0022] 40a, 40b: Sound pipes;

[0023] 41: Grooved pipe body;

[0024] 42: Internal connector;

[0025] 43: External connector;

[0026] 44a, 44b: Tube body cap;

[0027] 441: Ultrasonic cable;

[0028] 45: Tesla valve flow path;

[0029] 451: Flow splitter unit;

[0030] 452: External expansion channel;

[0031] 453: Arc-shaped manifold;

[0032] 454: Island-type splitter block;

[0033] 46: Gradual inlet airflow channel;

[0034] 47: Gradually expanding exhaust channel. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0037] The following is a reference to the appendix. Figure 1 To be continued Figure 6 This invention describes a speaker with a Tesla valve sound tube.

[0038] First, please refer to Figure 1 , Figure 2As shown, the first embodiment of the present invention includes: a first cover 10; a second cover 20, which is attached to the first cover 10, and a chamber 30 is formed between the first cover 10 and the second cover 20; a speaker hole 11, which is formed in the first cover 10 (or / and in the second cover 20) to allow a speaker 12 to be disposed in the speaker hole 11; and a sound tube 40a, which is formed in the first cover 10 (or in the second cover 20), the sound tube 40a having a grooved tube body 41, an inner connecting port 42, an outer connecting port 43 and a tube body cap 44a, and only the outer connecting port 43 is exposed, a Tesla valve flow channel 45 is formed inside the grooved tube body 41, and the tube body cap 44a is an independent cap plate.

[0039] Next, please refer to Figure 3 ~ Figure 5 As shown, the second embodiment of this invention differs from the first embodiment in that the sound tube structure is different: the sound tube 40b of the second embodiment is formed on the first cover 10 and the second cover 20. The sound tube 40b has a grooved tube body 41, an inner connecting port 42 and an outer connecting port 43 and a tube body cap 44b on the first cover 10. The grooved tube body 41 is formed on the first cover 10, and the tube body cap 44b is formed on the second cover 20. The tube body cap 44b is a capping platform attached to another cover (second cover 20) relative to the grooved tube body 41, and the contact surface between the tube body cap 44b (capping platform) and the grooved tube body 41 has an ultrasonic line 441.

[0040] In addition, please see Figure 6 As shown, the Tesla valve flow channel 45 has a plurality of flow-diverting units 451 arranged alternately on both sides. Each flow-diverting unit 451 has an outward expansion flow channel 452, an arc-shaped confluence flow channel 453 and an island-shaped flow-diverting block 454. The arc-shaped confluence flow channel 453 is connected to the outward expansion flow channel 452. The island-shaped flow-diverting block 454 is disposed on the inner side of the rear section of the outward expansion flow channel 452 and the front side of the arc-shaped confluence flow channel 453. The front end of the island-shaped flow-diverting block 454 is a slope, and the rear end of the island-shaped flow-diverting block 454 is an arc. Furthermore, a gradually narrowing inlet flow channel 46 is formed inside the grooved pipe body 41 at the inner end of the Tesla valve flow channel 45, and a gradually expanding exhaust flow channel 47 is formed inside the grooved pipe body 41 at the outer end of the Tesla valve flow channel 45.

[0041] Based on this configuration, the present invention utilizes the Tesla valve flow channel 45 formed inside the grooved tube body 41 of the sound tubes 40a and 40b. Through a plurality of staggered and continuous flow splitting units 451, the internal airflow of the chamber 30 is continuously split by the island-shaped flow splitting block 454. The reverse branch airflow caused by the flow through the arc-shaped confluence channel 453 gradually slows down the flow rate of the main airflow. Therefore, the present invention only needs to rely on the Tesla valve flow channel 45 with a fixed geometric shape, without the need for damping blocks (sponge) and breathable mesh as in the previous technology, to slow down the flow rate of the internal airflow of the chamber 30 when it passes through the sound tubes 40a and 40b and exits the speaker box. It effectively controls the airflow rate to reduce the sound of air, making the airflow smooth. This has the effect of saving materials and assembly time, and ensuring stable sound quality.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A speaker with a Tesla valve sound tube, comprising: a first cover; a second cover combined with the first cover to form a chamber between the first cover and the second cover; a speaker hole formed in the first cover or / and the second cover; and a sound tube formed in the first cover or / and the second cover, the sound tube having a groove-shaped tube body, an inner communication port, an outer communication port and a tube body cover, and the sound tube only the outer communication port is exposed, the groove-shaped tube body internally forms a Tesla valve flow channel.

2. The loudspeaker cabinet with Tesla valve sound tube of claim 1, wherein, The Tesla valve flow channel has a plurality of shunt units arranged alternately on both sides, each shunt unit has an outwardly expanding flow channel, an arc-shaped converging flow channel and an island-shaped shunt block, the arc-shaped converging flow channel is connected to the outwardly expanding flow channel, and the island-shaped shunt block is arranged inside the rear section of the outwardly expanding flow channel and the front side of the arc-shaped converging flow channel.

3. The loudspeaker cabinet with Tesla valve sound tube of claim 2, wherein, The front end of the island-shaped shunt block is beveled, and the rear end of the island-shaped shunt block is arc-shaped.

4. The loudspeaker cabinet with Tesla valve sound tube of claim 2, wherein, The inner end of the Tesla valve flow channel in the groove-shaped tube body forms a gradually tapered air inlet channel, and the outer end of the Tesla valve flow channel in the groove-shaped tube body forms a gradually expanding air outlet channel.

5. The loudspeaker enclosure with Tesla valve sound tube of claim 1 wherein, The tube body cover is an independent cover plate.

6. The loudspeaker cabinet with Tesla valve sound tube of claim 1, wherein, The groove-shaped tube body and the tube body cover are formed in the first cover and the second cover, and the tube body cover is a cover plate attached to the other cover relative to the groove-shaped tube body.

7. The loudspeaker cabinet with Tesla valve sound tube of claim 6 wherein, The contact surface of the tube body cover and the groove-shaped tube body has an ultrasonic wave line.

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