Integrated vibration damping mounting structure of hydrophone and sound barrier

Abstract

The application belongs to the technical field of underwater acoustic transducers, and particularly relates to an integrated vibration reduction mounting structure of a hydrophone and a sound barrier, which comprises a hydrophone, a vibration reduction frame and a sound barrier, the vibration reduction frame is provided with an accommodating opening at the top, and the vibration reduction frame is penetrated through at two sides, the hydrophone is mounted in the accommodating opening, the sound barrier is mounted in the vibration reduction frame and penetrates through the two sides of the vibration reduction frame, the sound barrier is provided with a mounting hole for accommodating the hydrophone, and the tail of the hydrophone penetrates through the mounting hole of the sound barrier and out of the vibration reduction frame, the rubber encapsulation structure outside the hydrophone and the vibration reduction frame are integrally vulcanized and formed, which is favorable for improving the connection reliability between the two and increasing the stability, and the rubber encapsulation structure provides the water-tight encapsulation function and the rubber vibration reduction function for the internal sensing elements of the hydrophone.

Description

Technical Field

[0001] This invention belongs to the field of underwater acoustic transducer technology, specifically relating to an integrated vibration reduction installation structure for a hydrophone and a sound baffle. Background Technology

[0002] A hydrophone is a sonar sensor used to receive sound wave vibrations and convert them into electrical signals. A sound baffle is a structure used to improve the sensing gain of a hydrophone.

[0003] Common installation methods for hydrophones and sound baffles are shown in the attached figure. Figure 1 As shown, a) a cylindrical hydrophone and a baffle are installed using a rear-end support; b) a spherical hydrophone and a baffle are installed using a mounting bracket; and c) a square hydrophone and a baffle are installed using screws and nuts. All of these installation methods require additional supports or fasteners and have relatively poor vibration damping effects.

[0004] Currently, the installation method for hydrophones and baffles is as follows: the hydrophone is rigidly connected to the baffle, and then connected to the base array. Generally, a vibration damping structure is added between the base array and the ship to reduce the interference of the ship's own vibrations on the hydrophone. This method often lacks vibration damping measures for individual hydrophones, especially when subjected to low-frequency rolling of the ship or vibrations from the ship's propulsion system, which can significantly interfere with the hydrophone's detection. Furthermore, the interior space of ships is often limited, leaving little room for implementing independent vibration damping structures for the hydrophones. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated vibration damping installation structure for a hydrophone and a sound baffle, in order to overcome the shortcomings of the existing technology.

[0006] This invention provides the following technical solution:

[0007] An integrated vibration damping mounting structure for a hydrophone and a sound baffle includes a hydrophone, a vibration damping frame, and a sound baffle. The top of the vibration damping frame is provided with a receiving opening, and the two sides of the vibration damping frame are open. The hydrophone is installed in the receiving opening. The sound baffle is installed in the vibration damping frame and extends out from the two sides of the vibration damping frame. The sound baffle is provided with mounting holes for accommodating the hydrophone. The tail of the hydrophone passes through the mounting holes of the sound baffle and exits the vibration damping frame.

[0008] Preferably, each end face of the vibration damping frame is hollowed out.

[0009] Preferably, the vibration damping frame is made of rubber material, and the vibration damping frame is integrally vulcanized with the rubber encapsulation structure outside the hydrophone.

[0010] Preferably, the overall thickness of the sound baffle is slightly greater than the internal height of the vibration damping frame.

[0011] Preferably, the hydrophone is a cylindrical hydrophone or a square planar hydrophone.

[0012] Preferably, the receiving opening has a circular or square cross-section.

[0013] Preferably, one end of the sound baffle is connected to the array frame.

[0014] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0015] 1) By integrally vulcanizing the vibration damping frame with the external rubber encapsulation structure of the hydrophone, the connection reliability between the two is improved and the stability is increased. At the same time, it provides water sealing and rubber vibration damping functions for the internal sensing elements of the hydrophone.

[0016] 2) By making the internal height of the vibration damping frame slightly smaller than the overall thickness of the sound baffle, the elasticity of the rubber is used to achieve a fixed installation with the sound baffle, and the hydrophone passes through the sound baffle to further ensure that the hydrophone does not shift between the hydrophone and the sound baffle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the common installation method of hydrophones and sound baffles;

[0018] Figure 2 This is a schematic diagram of the overall structure of the cylindrical hydrophone with sound baffle and the vibration damping mounting structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the cylindrical hydrophone and vibration damping mounting structure of the present invention;

[0020] Figure 4 These are three views of the cylindrical hydrophone and vibration damping mounting structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the overall structure of the square planar hydrophone with sound baffle and the vibration damping mounting structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the square planar hydrophone and vibration damping mounting structure of the present invention;

[0023] Figure 7 These are three views of the square planar hydrophone and vibration damping mounting structure of the present invention.

[0024] The markings in the image are as follows:

[0025] 1- Hydrophone; 2- Vibration damping frame; 3- Sound baffle; 4- Reception port. Detailed Implementation

[0026] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice the present invention. Although the present invention has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of the invention.

[0027] When the hydrophone 1 is a cylindrical hydrophone, the cross-section of the receiving opening 4 is circular, as shown in the attached figure. Figure 2-4 As shown, an integrated vibration damping installation structure for a hydrophone and a sound baffle includes a hydrophone 1, a vibration damping frame 2, and a sound baffle 3. The vibration damping frame 2 has a receiving opening 4 at its top and is open on both sides. The hydrophone 1 is installed in the receiving opening 4. The sound baffle 3 is installed in the vibration damping frame 2 and extends out from both sides of the vibration damping frame 2. The sound baffle 3 has mounting holes for accommodating the hydrophone 1. The tail of the hydrophone 1 passes through the mounting holes of the sound baffle 3 and exits outside the vibration damping frame 2, ensuring that the hydrophone 1 and the sound baffle 3 will not shift.

[0028] When the hydrophone 1 is a square planar hydrophone, the cross-section of the receiving port 4 is square, as shown in the attached figure. Figure 5-6 As shown, an integrated vibration damping installation structure for a hydrophone and a sound baffle includes a hydrophone 1, a vibration damping frame 2, and a sound baffle 3. The vibration damping frame 2 has a receiving opening 4 at its top and is open on both sides. The hydrophone 1 is installed in the receiving opening 4. The sound baffle 3 is installed in the vibration damping frame 2 and extends out from both sides of the vibration damping frame 2. The sound baffle 3 has mounting holes for accommodating the hydrophone 1. The tail of the hydrophone 1 passes through the mounting holes of the sound baffle 3 and exits outside the vibration damping frame 2, ensuring that the hydrophone 1 and the sound baffle 3 will not shift.

[0029] Specifically, each end face of the vibration damping frame 2 is hollowed out, which is beneficial for increasing the vibration damping effect later.

[0030] Specifically, the vibration damping frame 2 is made of rubber material, and the vibration damping frame 2 and the external rubber encapsulation structure of the hydrophone 1 are integrally vulcanized, which helps to improve the connection reliability between the two and increase stability.

[0031] Specifically, the overall thickness of the sound baffle 3 is slightly greater than the internal height of the vibration damping frame 2, meaning the internal height of the vibration damping frame 2 is slightly less than the overall thickness of the sound baffle 3. This allows the rubber elasticity of the vibration damping frame 2 to achieve a fixed installation with the sound baffle 3. The sound baffle 3 also has a certain vibration damping effect, but its main effect is to reflect sound wave vibrations onto the hydrophone 1, improving the hydrophone 1's sensing effect. This structure also utilizes the thickness dimension of the sound baffle 3 to increase the low-frequency vibration damping effect of the vibration damping frame 2.

[0032] Specifically, one end of the acoustic baffle 3 is connected to the array frame, which is installed on the ship, and the hydrophone 1 is installed on the array frame through the acoustic baffle 3.

[0033] The specific working principle of this invention is as follows:

[0034] The internal height of the vibration damping frame 2 is slightly less than the overall thickness of the stacked sound baffles 3, and the rubber elasticity is used to achieve a fixed installation with the sound baffles 3. The hydrophone 1 is connected to the hull or the base frame on the hull through the sound baffles 3. When the hull vibrates, the vibration transmitted to the hydrophone 1 will be absorbed by the rubber vibration damping structure of the vibration damping frame 2 to achieve a vibration damping effect. At the same time, the sound baffles 3 also have a certain vibration damping effect, but its main effect is to reflect the sound wave vibration to the hydrophone 1, thereby improving the sensing effect of the hydrophone 1.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present invention should be covered within the scope of protection of the present invention.

Claims

1. An integrated vibration damping mounting structure for a hydrophone and a sound baffle, characterized in that: The device includes a hydrophone (1), a vibration damping frame (2), and a sound baffle (3). The vibration damping frame (2) has a receiving opening (4) at the top and is open on both sides. The hydrophone (1) is installed in the receiving opening (4). The sound baffle (3) is installed in the vibration damping frame (2) and extends out from both sides of the vibration damping frame (2). The sound baffle (3) has a mounting hole for accommodating the hydrophone (1). The tail of the hydrophone (1) passes through the mounting hole of the sound baffle (3) and extends out of the vibration damping frame (2).

2. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: The vibration damping frame (2) has a hollowed-out design on each end face.

3. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: The vibration damping frame (2) is made of rubber material, and the vibration damping frame (2) and the rubber encapsulation structure outside the hydrophone (1) are integrally vulcanized.

4. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: The overall thickness of the sound baffle (3) is slightly greater than the internal height of the vibration damping frame (2).

5. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: The hydrophone (1) is a cylindrical hydrophone or a square planar hydrophone.

6. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: The receiving port (4) has a circular or square cross-section.

7. The integrated vibration damping installation structure of a hydrophone and a sound baffle according to claim 1, characterized in that: One end of the sound baffle (3) is connected to the base array.

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