High-pressure-resistant deep sea hydrophone

Abstract

The utility model relates to a high pressure resistant type deep sea hydrophone, and relates to the field of hydrophones, the high pressure resistant type deep sea hydrophone comprises a housing used for accommodating a hydrophone body, the top of the housing is provided with a top cover, a vibration damping assembly is arranged between the housing and the hydrophone body, and the top cover is provided with a through hole for a cable of the hydrophone body to pass through. The hydrophone has the advantages that the stability and reliability of the hydrophone body during deep sea operation are improved, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of hydrophones, and more particularly to a high-pressure-resistant deep-sea hydrophone. Background Technology

[0002] A hydrophone is a transducer that converts sound signals into electrical signals. Used to receive sound signals in water, it is called a receiving transducer or simply a hydrophone. Hydrophones are widely used in underwater communication, exploration, target location, and tracking, and are an important component of sonar. Underwater detection, identification, communication, marine environmental monitoring, and marine resource development all rely on hydrophones. As a precision electronic device, a hydrophone is easily affected by water pressure and agitation during underwater operations. Water surges or pulls can cause the hydrophone to shake, making its protective structure crucial and directly impacting its performance and lifespan. Utility Model Content

[0003] In order to improve the protective structure of hydrophones, this application provides a high-pressure resistant deep-sea hydrophone.

[0004] This application provides a high-pressure-resistant deep-sea hydrophone using the following technical solution:

[0005] A high-pressure-resistant deep-sea hydrophone includes a housing for accommodating the hydrophone body, a top cover on the top of the housing, a vibration damping assembly between the housing and the hydrophone body, and a through hole on the top cover for the cable of the hydrophone body to pass through.

[0006] Furthermore, the vibration damping assembly includes a vibration damping bag, a pressure plate, and several pads disposed within the housing. The vibration damping bag has a receiving space for accommodating the hydrophone body, and the vibration damping bag is filled with a damping filler. The pressure plate is disposed on the top of the vibration damping bag, and the several pads are all sleeved on the cables of the hydrophone body. The several pads are disposed between the pressure plate and the top cover.

[0007] Furthermore, the pressure plate includes two half plates, each half plate having a semi-circular hole through which the cable of the hydrophone body passes. The side wall of the half plate with the semi-circular hole has a protrusion and a groove. The protrusion is located on one side of the semi-circular hole, and the groove is located on the other side of the semi-circular hole. The groove is used to insert the protrusion of the other half plate.

[0008] Furthermore, each half plate is provided with a plurality of sliders on the side wall near the inner wall of the outer shell, and the inner wall of the outer shell is provided with a plurality of vertical grooves for the sliders to slide.

[0009] Furthermore, the vibration damping bag has a transverse partition layer inside, and the partition layer has several through holes, each of which is provided with an elastic valve damping sheet.

[0010] Furthermore, the filler is configured as a non-Newtonian fluid material.

[0011] Furthermore, the top cover is connected to the outer shell by a plurality of connectors, the plurality of connectors being evenly distributed along the circumference of the top cover. Each connector includes a buckle connected to the side wall of the top cover and a latch connected to the side wall of the outer shell, the buckle's buckle ring being snapped into place with the buckle.

[0012] Furthermore, a rubber ring is provided on the top cover, the inner wall of the rubber ring is in contact with the outer wall of the cable of the hydrophone body, the outer wall of the rubber ring is in contact with the wall of the perforation, and the bottom wall of the rubber ring is in contact with the top wall of the pad located at the top.

[0013] Furthermore, a counterweight is provided at the bottom of the outer casing.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] The outer shell and top cover are connected by connectors, which facilitates installation and maintenance and enables the hydrophone body to withstand the high pressure environment of the deep sea. This helps to improve the stability and reliability of the hydrophone body during deep-sea operations and extend its service life.

[0016] The vibration damping components (including the damping bag, pressure plate, and pad) effectively absorb and disperse vibration energy from the outside, reduce the impact on the hydrophone body, and improve the accuracy of signal acquisition. The damping bag is filled with non-Newtonian fluid material, which further enhances the damping effect and can respond quickly when impacted, protecting the hydrophone body. The design of the partition layer and elastic valve damping sheet inside the damping bag helps to disperse vibration energy in multiple directions, allowing the non-Newtonian fluid in the upper and lower cavities of the damping bag to flow slowly and maintain the stability of the internal structure of the damping bag.

[0017] The pressure plate component, designed with two half-plates, facilitates installation by interlocking the two half-plates. Secondly, the multiple sliders arranged circumferentially and the pressure plate component applied by several pads allow for the addition or reduction of the number of pads to allow the damping bag to wrap around hydrophone bodies of different sizes. The axis of the pressure plate component is always collinear with the axis of the hydrophone, ensuring that the pressure plate component always applies vertical pressure to the damping bag during operation, reducing interference signals caused by the shaking of the hydrophone body.

[0018] The bottom wall of the rubber ring fits into the top wall of the pad, enhancing the sealing effect between the cable of the top cover and the hydrophone body. The rubber ring provides elastic capacity between the pad and the top cover, making it easier to install the top cover, reducing vibration, and facilitating the normal operation of the hydrophone body in the deep sea environment.

[0019] The counterweight at the bottom of the casing helps maintain the hydrophone's stable posture in the deep sea, reducing swaying caused by water currents or external factors, and improving the accuracy and stability of signal acquisition. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-pressure-resistant deep-sea hydrophone according to an embodiment of this application.

[0021] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA surface

[0022] Figure 3 This is a schematic diagram illustrating the overall structure of the half-plate in the embodiments of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Hydrophone body; 2. Housing; 3. Top cover; 4. Connector; 41. Buckle; 42. Buckle; 5. Vibration damping assembly; 51. Vibration damping bag; 52. Pressure plate; 53. Pad; 6. Accommodation space; 7. Rubber ring; 8. Counterweight; 9. Perforation; 10. Partition layer; 11. Through hole; 12. Elastic valve damping sheet; 13. Half plate; 14. Semicircular hole; 15. Protrusion; 16. Groove; 17. Slider; 18. Slide. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a high-pressure-resistant deep-sea hydrophone.

[0026] Reference Figure 1 and Figure 2 A high-pressure-resistant deep-sea hydrophone includes a housing 2 for accommodating the hydrophone body 1. A top cover 3 is provided on the top of the housing 2. In this embodiment, the housing 2 is cylindrical and the top cover 3 is circular. The top cover 3 is provided with a through hole 9 for the cable of the hydrophone body 1 to pass through. The top cover 3 is connected to the housing 2 by a number of connectors 4. In this embodiment, there are 4 sets of connectors 4. The connectors 4 are evenly distributed along the circumference of the top cover 3. The connectors 4 include a fastener 41 fixedly connected to the side wall of the top cover 3 and a buckle 42 fixedly connected to the side wall of the housing 2. The buckle ring of the buckle 42 is snapped into the fastener 41.

[0027] The outer shell 2 and the top cover 3 are connected by the connector 4, which facilitates installation and maintenance and enables the hydrophone body 1 to withstand the high pressure environment of the deep sea. This helps to improve the stability and reliability of the hydrophone body 1 during deep-sea operations and extend its service life.

[0028] Reference Figure 2 A vibration damping assembly 5 is provided between the outer shell 2 and the hydrophone body 1. The vibration damping assembly 5 includes a vibration damping bag 51, a pressure plate 52, and several pads 53 disposed inside the outer shell 2. The vibration damping bag 51 is provided with a receiving space 6 for accommodating the hydrophone body 1. In this embodiment, the vibration damping bag 51 is set as a cylindrical bag shape. During installation, the hydrophone body 1 is inserted into the receiving space 6 of the vibration damping bag 51 from one end until it is completely placed into the receiving space 6. A transverse partition layer 10 is provided inside the vibration damping bag 51, which divides the inside of the vibration damping bag 51 into upper and lower parts. Several through holes 11 are provided on the partition layer 10. In this embodiment, there are 4 through holes 11, which are evenly distributed. Each through hole 11 is provided with an elastic valve damping sheet 12. The upper and lower parts of the vibration damping bag 51 are filled with a filling material for vibration damping. The filling material inside the vibration damping bag 51 is set as a non-Newtonian fluid material.

[0029] By setting up the vibration damping bag 51, pressure plate 52 and pad 53, the vibration energy from the outside is effectively absorbed and dispersed, reducing the impact on the hydrophone body 1 and improving the accuracy of signal acquisition. The vibration damping bag 51 is filled with non-Newtonian fluid material, which further enhances the vibration damping effect and can respond quickly when impacted, protecting the hydrophone body 1. The design of the partition layer 10 and elastic valve damping sheet 12 inside the vibration damping bag 51 helps to disperse vibration energy in multiple directions, so that the non-Newtonian fluid in the upper and lower cavities of the vibration damping bag 51 flows slowly, maintaining the stability of the internal structure of the vibration damping bag 51.

[0030] Reference Figure 2 and Figure 3 The pressure plate 52 is set on the top of the vibration damping bag 51, and several pads 53 are all sleeved on the cable of the hydrophone body 1 and are set between the pressure plate 52 and the top cover 3. The number of pads 53 increases or decreases depending on the different models of the hydrophone body 1.

[0031] The pressure plate 52 includes two half plates 13. In this embodiment, both half plates 13 are semi-circular. Each half plate 13 has a semi-circular hole 14. The two semi-circular holes 14 are arranged to form a hole through which the cable of the water supply device body 1 passes. The side wall of the half plate 13 with the semi-circular hole 14 is provided with a protrusion 15 and a groove 16. The protrusion 15 is provided on one side of the semi-circular hole 14, and the groove 16 is provided on the other side of the semi-circular hole 14. The groove 16 is used for the protrusion 15 of the other half plate 13 to be inserted. Several sliders 17 are provided on the side wall of the half plate 13 near the inner wall of the outer shell 2. In this embodiment, there are 3 sliders 17, which are evenly distributed along the circumference of the half plate 13. The inner wall of the outer shell 2 is provided with a vertical groove 18 for the sliders 17 to slide.

[0032] The pressure plate 52, designed with two half-plates 13, facilitates installation by interlocking the two half-plates 13. Secondly, due to the multiple sliders 17 arranged circumferentially and the pressure plate 52 being pressured by several pads 53, the number of pads 53 can be increased or decreased to allow the damping bag 51 to wrap around the hydrophone body 1 of different sizes. The axis of the pressure plate 52 is always collinear with the axis of the hydrophone, so that the pressure plate 52 always applies vertical pressure to the damping bag 51 during operation. The damping bag 51 is deformed under pressure, thus better wrapping the hydrophone body 1 and reducing interference signals caused by the shaking of the hydrophone body 1.

[0033] A rubber ring 7 is provided on the top cover 3. The inner wall of the rubber ring 7 is in contact with the outer wall of the cable of the hydrophone body 1, the outer wall of the rubber ring 7 is in contact with the hole wall of the perforation 9, and the bottom wall of the rubber ring 7 is in contact with the top wall of the pad 53 located at the top.

[0034] The bottom wall of the rubber ring 7 fits against the top wall of the pad 53 located at the top, which enhances the sealing effect between the cable of the top cover 3 and the hydrophone body 1. The rubber ring 7 provides elastic capacity between the pad 53 and the top cover 3, which facilitates the installation of the top cover 3, reduces vibration, and helps the hydrophone body 1 to work normally in the deep sea environment.

[0035] Reference Figure 1 The bottom of the outer shell 2 is equipped with a counterweight 8, which helps to maintain the stable posture of the hydrophone in the deep sea, reduce shaking caused by water flow or external factors, and improve the accuracy and stability of signal acquisition.

[0036] When installing the hydrophone body 1, first insert the hydrophone body 1 into the receiving space 6, then insert the vibration damping bag 51 into the outer shell 2, and insert the two half plates 13 into each other so that the cable of the hydrophone body 1 extends into the semi-circular hole 14. Each slider 17 slides into the corresponding groove 18. Then, push the pads 53 on the cable of the hydrophone body 1 into the outer shell 2 in sequence. The number of pads 53 can be adjusted according to the model of the hydrophone body 1. Finally, place the top cover 3 on the outer shell 2 so that the bottom wall of the rubber ring 7 fits against the top wall of the pad 53 located at the top. The buckle 42 and the buckle seat 41 are snapped together, making the installation simple and convenient.

[0037] The implementation principle of a high-pressure-resistant deep-sea hydrophone according to an embodiment of this application is as follows: by setting up a vibration damping bag 51, a pressure plate 52, and a pad 53, vibration energy from the outside is effectively absorbed and dispersed, reducing the impact on the hydrophone body 1 and improving the accuracy of signal acquisition. The vibration damping bag 51 is filled with a non-Newtonian fluid material, which further enhances the vibration damping effect and can respond quickly when subjected to impact, protecting the hydrophone body 1. The design of the partition layer 10 and the elastic valve damping sheet 12 inside the vibration damping bag 51 helps to disperse vibration energy in multiple directions, so that the non-Newtonian fluid in the upper and lower cavities of the vibration damping bag 51 flows slowly, maintaining the stability of the internal structure of the vibration damping bag 51.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-pressure-resistant deep-sea hydrophone, characterized in that: Includes a housing (2) for accommodating the hydrophone body (1), a top cover (3) is provided on the top of the housing (2), a vibration damping component (5) is provided between the housing (2) and the hydrophone body (1), and a through hole (9) is provided on the top cover (3) for the cable of the hydrophone body (1) to pass through. The vibration damping assembly (5) includes a vibration damping bag (51), a pressure plate (52), and several pads (53) disposed inside the housing (2). The vibration damping bag (51) has a receiving space (6) for accommodating the hydrophone body (1). The vibration damping bag (51) is filled with a filling material for vibration damping. The pressure plate (52) is disposed on the top of the vibration damping bag (51). Several pads (53) are all sleeved on the cable of the hydrophone body (1). Several pads (53) are disposed between the pressure plate (52) and the top cover (3). The shock-absorbing bag (51) has a transverse partition layer (10) inside, and a plurality of through holes (11) are provided on the partition layer (10), and an elastic valve damping sheet (12) is provided in each of the plurality of through holes (11). The filler is configured as a non-Newtonian fluid material.

2. The high-pressure-resistant deep-sea hydrophone according to claim 1, characterized in that: The pressure plate (52) includes two half plates (13), each half plate (13) having a semi-circular hole (14) through which the cable of the hydrophone body (1) passes. The half plate (13) has a protrusion (15) and a groove (16) on the side wall where the semi-circular hole (14) is located. The protrusion (15) is located on one side of the semi-circular hole (14), and the groove (16) is located on the other side of the semi-circular hole (14). The groove (16) is used to insert the protrusion (15) of the other half plate (13).

3. A high-pressure-resistant deep-sea hydrophone according to claim 2, characterized in that: Each half plate (13) is provided with a number of sliders (17) on the side wall near the inner wall of the outer shell (2), and the inner wall of the outer shell (2) is provided with a number of vertical grooves (18) for the sliders (17) to slide.

4. A high-pressure-resistant deep-sea hydrophone according to claim 1, characterized in that: The top cover (3) is connected to the outer shell (2) by a plurality of connectors (4). The plurality of connectors (4) are evenly distributed along the circumference of the top cover (3). Each connector (4) includes a buckle (41) connected to the side wall of the top cover (3) and a buckle (42) connected to the side wall of the outer shell (2). The buckle (42) and the buckle (41) are snapped together.

5. A high-pressure-resistant deep-sea hydrophone according to claim 1, characterized in that: A rubber ring (7) is provided on the top cover (3). The inner wall of the rubber ring (7) is in contact with the outer wall of the cable of the hydrophone body (1). The outer wall of the rubber ring (7) is in contact with the hole wall of the perforation (9). The bottom wall of the rubber ring (7) is in contact with the top wall of the pad (53) located at the top.

6. A high-pressure-resistant deep-sea hydrophone according to claim 1, characterized in that: A counterweight (8) is provided at the bottom of the outer shell (2).

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