Sonar and method of assembling same

Abstract

This invention discloses a sonar and its assembly method, relating to the field of underwater detection technology. The sonar includes a nut, a receiving array, an electronic component, a transducer, a housing, cables, and a cover. The threaded post of the transducer extends from the outside to the inside of the cover through a stud hole. The nut is screwed onto the threaded post of the transducer on the inside of the cover. The receiving array is vulcanized in the mounting hole of the cover. The electronic component is mounted on the inside of the cover. The cover is watertightly mounted to the housing to seal the opening of the housing cavity. One end of the cable extends into the housing cavity through a cable hole in the housing. The receiving array, the transducer, and the cable are respectively connected to the electronic component.

Description

Technical Field

[0001] This invention relates to an underwater acoustic device, and more particularly to a sonar and its assembly method. Background Technology

[0002] Sonar is a core device for underwater detection and communication. Its operating environment is quite unique, placing stringent requirements on the watertightness and structural stability of the equipment. Failure of the seal can lead not only to equipment malfunction but also to disrupt normal operations. For example, in Chinese invention patent application CN119716822A, the inventors disclosed a sonar with a detachable transmitting array, comprising a watertight chamber, watertight terminals, a circuit board unit, and a transceiver array unit. The watertight chamber has a receiving cavity, the watertight terminals are watertightly installed within the watertight chamber, the circuit board unit is housed within the receiving cavity of the watertight chamber, and the circuit board unit is connected to the watertight terminals. The transceiver array unit includes a fixed cover, a vulcanized section, a receiving array, and a transmitting array. The fixed cover has a first cover perforation, the receiving array has a front plate, the top of the front plate extends through the first cover perforation of the fixed cover to the top of the fixed cover, and the vulcanized section is integrally vulcanized on the top of the fixed cover, and the vulcanized section covers... The top of the front-mounted plate is covered, wherein the fixing cover is installed in the watertight chamber in such a way as to close the opening of the receiving cavity of the watertight chamber. The front-mounted plate of the receiving array and the transmitting array are respectively connected to the circuit board unit. The transmitting array has a threaded hole, and the fixing cover has a screw hole. The screw hole extends from the bottom of the mounting groove of the fixing cover to the bottom of the fixing cover. After the bottom of the transmitting array sinks into the mounting groove of the fixing cover, the screw hole of the fixing cover and the threaded hole of the transmitting array correspond. The threaded end of the screw extends to the threaded hole of the transmitting array after passing through the screw hole of the fixing cover, and the threaded end of the screw is screwed into the transmitting array. Thus, the transmitting array is locked to the fixing cover by the screw.

[0003] The existing installation method of the sonar array and the fixed cover has obvious technical defects. Specifically, during the rotation of the fixed cover and the sonar array by the screw, the fit between the screw, the fixed cover and the sonar array, and the screw insertion depth are completely invisible. Assemblers cannot directly observe the internal fit and tightness, and can only estimate the insertion depth based on experience. If the screw insertion depth is insufficient, the fit between the sonar array and the fixed cover will be loose, resulting in gaps at the connection and causing water leakage risks, thus compromising the watertightness of the equipment. If the screw insertion depth is too large, the pushing force generated by the screw and the screw array thread locking will lift the sonar array, causing it to separate from the fixed cover, which will also cause sealing failure and water leakage risks, seriously affecting the underwater safety and operational stability of the sonar.

[0004] In addition, the cabins of existing sonars are all made of alloy materials (e.g., aluminum alloy, titanium alloy, etc.), which are costly. How to further reduce costs while ensuring the deep pressure resistance of the sonar is another problem that the inventors of this invention are committed to solving. Summary of the Invention

[0005] One object of the present invention is to provide a sonar and a method for assembling the same, wherein the installation process of the sonar's transducer and canopy is visible, so as to facilitate the assembly of the transducer and the canopy by an assembly worker.

[0006] One object of the present invention is to provide a sonar and its assembly method, wherein after the threaded post of the transducer extends from the outside to the inside of the hatch through the stud hole of the hatch cover, a nut is screwed onto the threaded post of the transducer on the inside of the hatch cover. In this way, on the one hand, the installation process of the transducer and the hatch cover can be visualized, and on the other hand, the problem of the transducer being pushed upward during the installation process can be avoided, thereby ensuring the watertightness of the installation position of the transducer and the hatch cover.

[0007] One object of the present invention is to provide a sonar and its assembly method, wherein the cabin is made of plastic material. Compared with the alloy material cabin of the prior art, the sonar of the present invention has a lower cost. On this basis, the electronic part of the sonar supports the cabin within the cabin cavity to prevent the cabin from deforming, thereby ensuring the deep pressure resistance performance of the sonar.

[0008] One object of the present invention is to provide a sonar and a method for assembling the same, wherein the housing is equipped with a heat dissipation unit, so that the heat dissipation performance of the sonar can be guaranteed when the housing is made of plastic material.

[0009] According to one aspect of the present invention, a sonar is provided, comprising: Nut; Receiver array; Electronic components; The transducer has a threaded column; The cabin has a cavity and cable holes communicating with the cavity; A cable, one end of which extends through the cable hole in the cabin body into the cabin cavity; The hatch cover has stud holes and mounting holes. The threaded post of the transducer extends from the outside to the inside of the hatch cover through the stud holes. The nut is screwed onto the threaded post of the transducer on the inside of the hatch cover. The receiving array is vulcanized in the mounting holes of the hatch cover. The electronic components are mounted on the inside of the hatch cover. The hatch cover is watertightly installed on the cabin body to seal the opening of the cabin cavity of the cabin body. The receiving array, the transducer, and the cable are respectively connected to the electronic components.

[0010] According to one embodiment of the present invention, the cabin is made of plastic, and a first rib and a second rib are respectively provided on opposite sides of the inner wall of the cabin. The cabin cover is made of alloy material. The electronic component includes a circuit board and a metal or alloy bracket. The bracket includes a first side plate, a second side plate, and a connecting plate. The first side plate and the second side plate are arranged face to face. The connecting plate connects the bottom of the first side plate and the bottom of the second side plate. The bracket forms a bracket cavity between the first side plate, the second side plate, and the connecting plate. The circuit board is installed in at least one of the first bracket and the second bracket, and the circuit board is located in the bracket cavity. The top of the first bracket and the top of the second bracket are respectively installed on the cabin cover to install the electronic component on the inner side of the cabin cover. The first side plate abuts against the first rib of the cabin, and the second side plate abuts against the second rib of the cabin.

[0011] According to one embodiment of the present invention, the first side plate, the second side plate and the connecting plate are formed by bending a complete metal plate or alloy plate along a predetermined position.

[0012] According to one embodiment of the present invention, the cabin has a perforation that communicates with the cabin cavity, and the sonar further includes a heat dissipation unit that is watertightly installed in the perforation of the cabin, with the inner side of the heat dissipation unit attached to the bracket of the electronic part.

[0013] According to one embodiment of the present invention, the heat dissipation part includes a heat dissipation plate and a heat conduction plate. The heat dissipation plate is stacked on the outer wall of the chamber and covers the perforated hole. The heat conduction plate is stacked on the inner wall of the chamber and covers the perforated hole. The threaded end of the screw extends into the threaded hole of the heat dissipation plate after passing through the screw hole of the heat conduction plate, so as to screw the threaded end of the screw onto the heat dissipation plate.

[0014] According to one embodiment of the present invention, the heat sink has a positioning block, the shape and size of which match the shape and size of the perforated hole of the housing, the positioning block extending into the perforated hole of the housing, wherein the threaded hole of the heat sink is provided in the positioning block.

[0015] According to one embodiment of the present invention, the cabin has a cabin opening communicating with the cabin cavity, wherein the sonar further includes a temperature sensor, the temperature sensor being watertightly installed in the cabin opening of the cabin, the inner end of the temperature sensor being connected to the electronic part, and the outer end being exposed to the outside of the sonar.

[0016] According to one embodiment of the present invention, the sonar further includes a position sensor disposed in the electronic part for outputting the three-dimensional attitude of the sonar.

[0017] According to another aspect of the present invention, the present invention further provides a method for assembling sonar, wherein the assembly method includes the following steps: S1, insert one end of the cable through the cable hole of the cabin body into the cabin cavity; S2, after at least a portion of the receiving array is received in the mounting hole of the hatch cover, the receiving array is vulcanized on the hatch cover; S3, after the threaded post of the transducer extends from the outside to the inside of the hatch cover through the stud hole of the hatch cover, the nut is placed on the threaded post of the transducer to install the transducer on the hatch cover; S4, the top of the electronic component is installed on the hatch, wherein the receiver array and the transducer are respectively connected to the electronic component; S5, after connecting the cable and the electronic component, the cover is watertightly installed on the cabin body, and the cover closes the opening of the cabin cavity of the cabin body, wherein the electronic component is suspended in the cabin cavity of the cabin body by the cover.

[0018] According to one embodiment of the present invention, a heat dissipation unit is installed on the housing before step S1 or after step S2, and after step S5, the inner side of the heat dissipation unit is attached to the bracket of the electronic part. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a sonar according to a preferred embodiment of the present invention.

[0020] Figure 2 This is a perspective view of the sonar according to the preferred embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional schematic diagram of the sonar according to the above-described preferred embodiment of the present invention.

[0022] Figure 4 This is an exploded view of the sonar according to the preferred embodiment of the present invention.

[0023] Figure 5 This is an exploded schematic diagram from another perspective of the sonar according to the preferred embodiment of the present invention described above.

[0024] Figure 6 This is an exploded view of a partial structure of the sonar according to the above-described preferred embodiment of the present invention.

[0025] Figure 7 This is an exploded schematic diagram from another perspective of the partial structure of the sonar according to the preferred embodiment of the present invention.

[0026] Figure 8 This is a perspective view of a modified example of the preferred embodiment of the present invention described above.

[0027] Figure 9 This is a perspective view of another variation of the above-described preferred embodiment of the present invention.

[0028] Figure 10 This is a cross-sectional schematic diagram of a modified example of the preferred embodiment of the present invention.

[0029] Figure 11 yes Figure 10 A magnified view of a local location.

[0030] Figure 12 This is an exploded view of one of the modified examples of the preferred embodiments of the present invention.

[0031] Figure 13 This is an exploded view from another perspective of the modified example of the above-described preferred embodiment of the present invention. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0033] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0034] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0035] Refer to the accompanying drawings of the specification of this invention. Figures 1 to 7 A preferred embodiment of the present invention will be disclosed and described in the following description, wherein the sonar includes a housing 10, a canopy 20, a transducer 30, a nut 40, a receiver array 50, an electronic component 60, and a cable 70.

[0036] Specifically, the cabin 10 has a cavity 11 and a cable hole 12, the cable hole 12 connecting to the cavity 11. The cover 20 has a stud hole 21 and a mounting hole 22, the stud hole 21 and the mounting hole 22 being independent of each other. The transducer 30 has a threaded post 31. After the threaded post 31 of the transducer 30 extends from the outside to the inside of the cover 20 through the stud hole 21, the nut 40 is screwed onto the threaded post 31 of the transducer 30, thus the transducer 30 is installed on the cover. The hatch cover 20 is wherein the receiving array 50 is vulcanized in the mounting hole 22 of the hatch cover 20, wherein the electronic part 60 is mounted on the inside of the hatch cover 20, and the transducer 30 and the receiving array 50 are respectively connected to the electronic part 60, wherein the hatch cover 20 is watertightly mounted to the cabin 10 for sealing the opening of the cabin cavity 11 of the cabin 10, wherein one end of the cable 70 extends through the cable hole 12 of the cabin 10 to the cabin cavity 11, and the cable 70 is connected to the electronic part 60.

[0037] Unlike existing technologies, in the sonar of this invention, the transducer 30 is installed on the hatch 20 by screwing the nut 40 onto the threaded post 31 of the transducer 30 through the stud hole 21 of the hatch 20. Therefore, the installation process of the transducer 30 and the hatch 20 is visible. That is, the assembly personnel can easily observe the tightness of the nut 40 to intuitively judge the installation status, which reduces the technical threshold and error tolerance cost of assembly, making it easier for the assembly personnel to assemble the transducer 30 and the hatch 20. Furthermore, the problem of the transducer 30 being pushed upwards during the installation process can be avoided, ensuring the watertightness of the installation position of the transducer 30 and the hatch 20. In other words, in the sonar of the present invention, the nut 40 screws the threaded post 31 of the transducer 30 onto the inner side of the cover 20. The preload of the threaded connection is controllable, which can ensure that the sealing pressure of the mating surfaces of the transducer 30 and the cover 20 is uniform, and avoid water leakage due to the mating gap.

[0038] Specifically, in the existing technology, since the screw is screwed into the threaded hole of the launch array after passing through the screw hole of the fixed cover, the assembly process is not visible. The assembler cannot judge the tightness of the screw and can only operate based on experience. This results in either insufficient or excessive preload. When the preload is insufficient, there is a small gap between the launch array and the fixed cover. In the high-pressure underwater environment, water can easily seep into the interior of the watertight compartment through this gap, damaging internal components and causing equipment failure. When the preload is excessive, it will generate an excessive axial thrust, pushing the launch array away from the fixed cover, destroying the sealing structure, and also posing a risk of water leakage. In the sonar of the present invention, after the threaded post 31 of the transducer 30 passes through the threaded post hole 21 of the hatch cover 20, the nut 40 is screwed onto the threaded post 31 of the transducer 30 on the inner side of the hatch cover 20 to achieve locking. The tightening process of the nut 40 can be quantitatively controlled by conventional tools such as torque wrenches. The assembly personnel can accurately set the preload parameters according to the water depth of the sonar and the material characteristics of the hatch cover 20, ensuring that the sealing pressure of the mating surfaces of the transducer 30 and the hatch cover 20 is uniform and stable. There will be no sealing gap due to insufficient preload, nor will there be component deformation or sealing failure due to excessive preload. At the same time, uniform preload can prevent relative displacement between the transducer 30 and the hatch cover 20, reduce the impact of underwater vibration on the assembly structure of the transducer 30 and the hatch cover 20, and further improve the long-term effectiveness of the seal. Meanwhile, since the screwing process of the nut 40 is visible, during the assembly process, the assembler can clearly observe whether the threaded post 31 of the transducer 30 accurately passes through the stud hole 21 of the hatch cover 20, and whether the nut 40 and the inner side of the hatch cover 22 are correctly fitted. At the same time, the assembler can intuitively judge the tightness of the nut 40, avoiding assembly deviations caused by "blind assembly". This not only helps to reduce the technical threshold requirements for technicians, but also significantly improves assembly efficiency and reduces rework rate.

[0039] It is worth mentioning that the installation method of the cabin 10 and the hatch 20 is the same as the installation method of the watertight compartment and fixed cover in the detachable sonar of the launch array in the prior art. The installation method of the cabin 10 and the hatch 20 will not be described again in this invention.

[0040] Understandably, in the appendix Figures 1 to 7 In this specific example of the sonar shown, after one end of the cable 70 passes through the cable hole 12 of the housing 10, the cable hole 12 of the housing 10 can be filled with glue to fill the gap between the housing 10 and the cable 70 and prevent water leakage.

[0041] Continue to refer to the appendix Figure 3The sonar further includes a gasket G and a spring S. After the gasket G and the spring S are sequentially fitted onto the threaded post 31 of the transducer 30, the nut 40 is screwed onto the threaded post 31 of the transducer 30. That is, the gasket G and the spring S are clamped between the hatch cover 20 and the nut 40. In this way, the gasket G can disperse the preload force, and the spring S generates a continuous preload rebound force, ensuring that the preload force is stable in the long term, so as to ensure the reliability of the installation relationship between the hatch cover 20, the transducer 30 and the nut 40.

[0042] In the sonar described in this invention, reference is made to the appendix. Figure 3 The receiving array 50 includes at least one front plate 51. After the top of the front plate 51 extends into the mounting hole 22 of the hatch cover 20, a vulcanized portion 80 is formed in the mounting hole 22 of the hatch cover 20 through a vulcanization process. The vulcanized portion 80 integrally combines the top of the hatch cover 20 and the front plate 51 to vulcanize the receiving array 50 in the mounting hole 22 of the hatch cover 20. It is understood that the bottom of the front plate 51 is exposed inside the hatch cover 20.

[0043] In the sonar of the present invention, the housing 10 is made of plastic and can be molded by injection molding, which helps to reduce the cost of the sonar. At least one first rib 13 and at least one second rib 14 are respectively provided on the inner walls of a pair of opposite sides of the housing 10 to increase the structural strength of the housing 10 and prevent it from being deformed by water pressure. Preferably, a third rib 15 and a fourth rib 16 can be respectively provided on the inner and outer walls of the other pair of opposite sides of the housing 10 to further increase the structural strength of the housing 10 and prevent it from being deformed by water pressure. It is understood that the third rib 15 and the fourth rib 16 on the outer wall of the housing 10 can serve as mounting parts to facilitate the installation of the sonar and other equipment.

[0044] Unlike the material of the hull 10, the material of the hatch cover 20 can be an alloy material, such as, but not limited to, aluminum alloy and titanium alloy. In some examples, the hatch cover 20 can be manufactured by CNC precision machining or by die casting. The present invention does not limit the manufacturing process of the hatch cover 20.

[0045] The electronic component 60 includes a bracket 61 and at least one circuit board 62. The bracket 61 may be made of metal or alloy to ensure its heat dissipation performance, structural strength, and stability. The bracket 61 includes a first side plate 611, a second side plate 612, and a connecting plate 613, and has a bracket cavity 614. The first side plate 611 and the second side plate 612 are arranged face-to-face, and the connecting plate 613 connects the bottom of the first side plate 611 and the bottom of the second side plate 612. The bracket cavity 614 is formed between the first side plate 611, the second side plate 612, and the connecting plate 613. The circuit board 62 is mounted on the first side plate 611 and housed within the bracket cavity 614 of the bracket 61. For example, in one embodiment of the invention, the first side plate 611, the second side plate 612, and the connecting plate 613 of the bracket 61 are formed by bending a single metal or alloy plate along a predetermined position. Alternatively, in other examples of the invention, the circuit board 62 may be mounted on the second side plate 612.

[0046] In the sonar of the present invention, the top of the first side plate 611 and the top of the second side plate 612 of the bracket 61 are respectively mounted on the hatch 20. For example, at least one screw 1000 can be used to mount the top of the first side plate 611 and the top of the second side plate 612 to the hatch 20. Since both the hatch 20 and the bracket 61 are made of metal or alloy, a stable mounting relationship can be achieved between the bracket 61 and the hatch 20.

[0047] After the top of the first side plate 611 and the top of the second side plate 612 of the bracket 61 are respectively installed on the hatch 20, the ribbon cable can be used to connect the front plate 51 and the circuit board 62 to connect the receiver array 50 and the electronic part 60. The threaded post 31 of the transducer 30 is a hollow post for passing through the wires of the transducer 30. The wires of the transducer 30 are connected to the circuit board 62 to connect the transducer 30 and the electronic part 60.

[0048] In the sonar of the present invention, there may be two circuit boards 62, one circuit board 62 being a main control board 621 and the other circuit board 62 being a transmitter board 622. A set of first support cylinders 63 are disposed between the main control board 621 and the first side plate 611, so that there is a gap between the main control board 621 and the first side plate 611. A set of second support cylinders 64 are disposed between the main control board 621 and the transmitter board 622, so that there is a gap between the main control board 621 and the transmitter board 622. The threaded end of a set of screws 1000 is screwed onto the first side plate 611 after passing through the plate hole of the transmitter board 622, the second support cylinder 64, the plate hole of the main control board 621, and the first support cylinder 63 in sequence. Thus, the circuit board 62 is installed on the first side plate 611. The second side plate 612 has a set of clearance holes 6121, which can be aligned with the first support cylinder 63 and the second support cylinder 64, so that the assembly personnel can use tools to operate the first support cylinder 63 and the second support cylinder 64.

[0049] In this specific example of the sonar of the present invention, there are four first support cylinders 63, each of which is respectively disposed at the four corners of the main control board 621 and the four corners of the first side plate 611. There are also four second support cylinders 64, each of which is respectively disposed at the four corners of the main control board 621 and the four corners of the transmitter plate 622. In this way, the four screws 1000 can respectively lock the transmitter plate 622 and the main control board 621 to the first side plate 611 at the four corners.

[0050] Additionally, the electronic component 60 includes a filter board 65 and a power board 66. The filter board 65 and the power board 66 are respectively locked to the inside of the cover 20 by a set of screws, and the filter board 65 and the power board 66 have a gap in the height direction. The filter board 65 is connected to the main control board 621, and the cable 70 is connected to the filter board 65. Thus, the cable 70 is connected to the main control board 621 through the filter board 65. In this way, the filter board 65 can provide filtering function to remove noise interference and / or perform frequency selection. The transducer 30 and the transmitter board 622 are respectively connected to the power board 66.

[0051] It is understandable that, since there is a stable installation relationship between the bracket 61 and the hatch 20, it is beneficial to ensure the stability and reliability of the connection relationship between the front plate 51, the main control board 621, the transmitter board 622, the filter board 65, the power supply board 66, the cable 70 and the transducer 30.

[0052] After the hatch 20 is installed on the cabin 10 and the electronic component 60 is suspended in the cabin cavity 11 of the cabin 10 by the hatch 20, the first side plate 611 of the bracket 61 abuts against the first rib 13 of the cabin 10, and the second side plate 612 abuts against the second rib 14 of the cabin 10. Thus, the bracket 61 supports the cabin 10 within the cabin cavity 11, preventing deformation of the cabin 10 and ensuring the deep-sea pressure resistance of the sonar. For example, in one embodiment of the present invention, the sonar will not be deformed by water pressure when used in a water depth environment of 300m-350m, thus ensuring the reliability and stability of the sonar.

[0053] More specifically, in the appendix Figures 1 to 7 In this specific example of the sonar of the present invention shown, the two opposite sides of the housing 10, which are provided with the first rib 13 and the second rib 14, are convex. There are multiple first ribs 13 of the housing 10, forming a flat first abutment surface 131. There are multiple second ribs 14 of the housing 10, forming a flat second abutment surface 141. The first abutment surface 131 and the second abutment surface 141 are arranged face-to-face. The outer side of the first side plate 611 of the support 61 is a flat surface, and its top opposite ends are respectively locked to the hatch cover 20 by a screw. The outer side of the second side plate 612 is a flat surface, and its top... The two opposite ends are respectively locked to the hatch 20 by a screw. The distance between the outer side of the first side plate 611 and the outer side of the second side plate 612 is equal to the distance between the first abutment surface 131 and the second abutment surface 141 of the cabin body 10. Thus, after the hatch 20 suspends the electronic part 60 in the cabin cavity 11 of the cabin body 10, the outer side of the first side plate 611 is attached to the first abutment surface 131 of the cabin body 10, and the outer side of the second side plate 612 is attached to the second abutment surface 141 of the cabin body 10. In this way, after the sonar is placed in a deep water environment, the opposite sides of the cabin body 10 can be subjected to force evenly, avoiding the problem of pressure concentration, so as to ensure the deep pressure resistance performance of the sonar.

[0054] In the sonar of this invention, since the housing 10 is made of plastic, to ensure the heat dissipation performance of the sonar, the sonar further includes a heat dissipation section 90. The housing 10 has a perforation 17 that connects to the housing cavity 11. The heat dissipation section 90 is watertightly installed in the perforation 17 of the housing 10. Thus, the inner side of the heat dissipation section 90 is exposed to the housing cavity 11 of the housing 10, while the outer side of the heat dissipation section 90 is exposed to the outside of the sonar. The bracket 61 of the electronic component 60 is attached to the inner side of the heat dissipation section 90. During operation, the heat generated by the circuit board 62 can be quickly conducted to the heat dissipation section 90 via the bracket 61 and dissipated through the heat dissipation section 90. Therefore, even with the housing 10 made of plastic, the heat dissipation performance of the sonar can be guaranteed.

[0055] Further, the heat dissipation part 90 includes a heat dissipation plate 91 and a heat-conducting plate 92. The heat dissipation plate 91 has at least one first threaded hole 911, and the heat-conducting plate 92 has at least one first screw hole 921. After the heat dissipation plate 91 is stacked on the outer wall of the housing 10 and the heat dissipation plate 91 covers the perforated hole 17 of the housing 10, and after the heat-conducting plate 92 is stacked on the inner wall of the housing 10 and the heat-conducting plate 92 covers the perforated hole 17 of the housing 10, the first threaded hole 921 of the heat dissipation plate 91... The position of the threaded hole 911 is directly opposite the position of the first screw hole 921 of the heat-conducting plate 92. The threaded end of the screw 1000 extends into the first threaded hole 911 of the heat sink 91 after passing through the first screw hole 921 of the heat-conducting plate 92, and the threaded end of the screw 1000 is screwed onto the heat sink 91. In this way, the heat sink 91 and the heat-conducting plate 92 are watertightly installed in the perforated hole 17 of the cabin 10 in a manner that clamps the edge of the perforated hole 17 of the cabin 10. It can be understood that the heat sink 91 is exposed on the outside of the sonar, and the heat-conducting plate 92 is exposed in the cabin cavity 11 of the cabin 10, which is attached to the bracket 61.

[0056] It is understandable that, since the threaded end of the screw 1000 first passes through the first screw hole 921 of the heat-conducting plate 92 and is then screwed into the first threaded hole 911 of the heat sink 91, that is, the screw 1000 installs the heat-conducting plate 92 and the heat sink 91 inside the cavity 11 of the cabin 10. Therefore, when the first threaded hole 911 of the heat sink 91 is designed as a blind hole, the installation method of the heat sink 91, the heat-conducting plate 92 and the cabin 10 will not affect the watertightness of the sonar.

[0057] To further improve the water tightness of the mounting positions of the cabin 10 and the heat dissipation unit 90, the sonar of the present invention further includes at least one sealing ring 100, the sealing ring 100 surrounding the perforated hole 17 of the cabin 10, and the sealing ring 100 being clamped between the heat dissipation plate 91 and the cabin 10. Preferably, the heat sink 91 has a groove 912, the depth of which is smaller than the radius of the cross-sectional shape of the sealing ring 100. During assembly, firstly, the sealing ring 100 is installed in the groove 912 of the heat sink 91, at which point the sealing ring 100 protrudes from the surface of the heat sink 91. Secondly, the heat sink 91 is stacked on the outer wall of the housing 10, at which point the sealing ring 100 is clamped between the heat sink 91 and the housing 10. Then, the heat conduction plate 92 and the heat sink 91 are locked together using the screw 1000. At this point, the heat sink 91 and the housing 10 provide clamping force, causing the sealing ring 100 to deform, thereby ensuring the watertightness of the installation position of the housing 10 and the heat dissipation part 90.

[0058] In the appendix Figures 1 to 7 In this specific example of the sonar of the present invention shown, the perforation 17 of the housing 10 is provided at the bottom of the housing 10. Since the bottom of the housing 10 and the opening of the cavity 11 are directly opposite each other, it is convenient for an assembly operator to use tools to operate the screw 1000 to install the heat sink 91 and the heat conduction plate 92. That is, in the present invention, the inner side of the heat conduction plate 92 is exposed at the bottom of the housing 10, and the connecting plate 613 of the bracket 61 abuts against the heat conduction plate 92.

[0059] Furthermore, the heat sink 91 has a positioning block 913, the shape and size of which match the shape and size of the perforated hole 17 of the housing 10. The positioning block 913 of the heat sink 91 extends into the perforated hole 17 of the housing 10. The first threaded hole 911 of the heat sink 91 is located in the positioning block 913. In this way, on the one hand, when the screw 1000 is used to lock the heat conducting plate 92 and the heat sink 91, it can be ensured that the heat sink 91 covers the housing 10. The perforated hole 17 ensures the watertightness of the sonar. Furthermore, the heat sink 91 has a significant thickness at the positioning block 913, allowing the first threaded hole 911 to have a greater depth. This ensures that the threaded end of the screw 1000 is reliably screwed onto the heat sink 91. Additionally, the positioning block 913 of the heat sink 91 can be adjacent to or fitted against the heat-conducting plate 92 to ensure rapid heat transfer from the heat-conducting plate 92 to the heat sink 91. Preferably, the gap between the heat sink 91 and the heat-conducting plate 92 can be filled with thermal grease.

[0060] Preferably, the perforated hole 17 of the cabin 10 and the positioning block 913 of the heat dissipation plate 91 are non-circular in shape, for example, in the attached Figures 1 to 7 In this specific example of the sonar of the present invention, the perforation 17 of the housing 10 and the positioning block 913 of the heat sink 91 are chamfered rectangles. This ensures that the positioning block 913 has a sufficiently large area to facilitate rapid heat transfer from the heat-conducting plate 92 to the heat sink 91. Furthermore, when the screw 1000 is used to lock the heat-conducting plate 92 and the heat sink 91, the housing 10 prevents the heat sink 91 from rotating with the screw 1000, ensuring that the heat sink 91 covers the perforation 17 of the housing 10. Optionally, in other examples of the sonar of the present invention, the perforation 17 of the housing 10 and the positioning block 913 of the heat sink 91 are racetrack-shaped or elliptical.

[0061] In addition, the bottom of the housing 10 has at least one bottom-opening positioning blind hole 18, and the heat dissipation plate 91 has at least one positioning post 914. The positioning post 914 of the heat dissipation plate 91 protrudes into the positioning blind hole 18 of the housing 10. Thus, when the heat conduction plate 92 and the heat dissipation plate 91 are locked together using the screw 1000, the housing 10 can prevent the heat dissipation plate 91 from rotating with the rotation of the screw 1000, ensuring that the heat dissipation plate 91 can cover the hollow hole 17 of the housing 10.

[0062] Furthermore, the hull 10 also has a hull opening 19 communicating with the chamber 11. The sonar includes a temperature sensor 110, which is watertightly mounted in the hull opening 19 of the hull 10. The inner end of the temperature sensor 110 is connected to the circuit board 62 of the electronic component 60. For example, a flywire can be used to connect the inner end of the temperature sensor 110 to the circuit board 62. The outer end of the temperature sensor 110 is exposed to the outside of the sonar. After the sonar is submerged in water, the temperature sensor 110 can be used to detect the current ambient water temperature.

[0063] Furthermore, the sonar also includes a position sensor 120, which is disposed in the electronics 60. The position sensor 120 is used to output the three-dimensional attitude of the sonar in the current environment. Specifically, the position sensor 120 is mounted on the bracket 61 of the electronics 60 and connected to the circuit board 62. In this invention, the position sensor 120 is a nine-axis position sensor that integrates a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer. Therefore, the position sensor 120 can output complete three-dimensional attitude (pitch / roll / heading) and motion data.

[0064] Reference Appendix Figures 1 to 7 The assembly process of the sonar of the present invention may be as follows: (a) The heat dissipation part 90 is watertightly installed in the hollow hole 17 of the housing 10, allowing one end of the cable 70 to extend into the housing 11 through the cable hole 12 of the housing 10; (b) After the top of the front plate 51 of the receiver array 50 extends into the mounting hole 22 of the hatch cover 20, the vulcanized portion 80 is formed in the mounting hole 22 of the hatch cover 20 to vulcanize the receiver array 50 to the hatch cover 20. (c) After the threaded post 31 of the transducer 30 extends from the outside to the inside of the hatch 20 through the stud hole 21 of the hatch 20, firstly, the gasket G and the spring S are respectively fitted onto the threaded post 31, and secondly, the nut 40 is screwed onto the threaded post 31 for installing the transducer 30 onto the hatch 20. (d) Install the power board 66 and the filter board 65 on the cover 20, and connect the wires of the transducer 30 to the power board 66; (e) After the circuit board 62 is installed on the first side plate 611 of the bracket 61, the top of the first side plate 611 and the top of the second side plate 612 are installed on the cover 20 by the screw 1000, the transmitter plate 622 of the circuit board 62 is connected to the power board 66 and the main control board 621 is connected to the filter board 65. (f) After connecting the cable 70 and the filter plate 65, the cover 20 is watertightly installed on the cabin 10 such that the electronic part 60 is inserted into the cabin cavity 11 of the cabin 10, wherein the cover 20 seals the opening of the cabin cavity 11 of the cabin 10, the first side plate 611 of the bracket 61 abuts against the first abutting surface 131 of the first rib 13 of the cabin 10, the second side plate 612 abuts against the second abutting surface 141 of the second rib 14 of the cabin 10, and the connecting plate 613 abuts against the inner side of the heat-conducting plate 92 of the heat dissipation part 90.

[0065] Understandably, since the first side plate 611 of the bracket 61 abuts against the first abutting surface 131 of the first rib 13 of the cabin 10, and the second side plate 612 abuts against the second abutting surface 141 of the second rib 14 of the cabin 10, the bracket 61 supports the cabin 10 within the cabin cavity 11. Even if the cabin 10 is made of plastic, the sonar will not be deformed by water pressure in deep environments, thus ensuring the reliability and stability of the sonar. Simultaneously, since the connecting plate 613 of the bracket 61 abuts against the inner side of the heat-conducting plate 92, the sonar can still have good heat dissipation performance even if the cabin 10 is made of plastic.

[0066] Appendix Figures 8 to 13 A modified example of the sonar of the present invention is shown, with attached... Figures 1 to 7 Unlike the sonar shown, in the attached Figures 8 to 13 In this specific example of the sonar shown, the bottom of the cabin 10 has a slope 101 on each of the opposite sides, such that the width of the bottom of the cabin cavity 11 of the cabin 10 is smaller than the width of the top. The perforation 17 of the cabin 10 is provided on one of the slopes 101 of the cabin 10, so that after the heat dissipation part 90 is watertightly installed in the perforation 17 of the cabin 10, the heat conduction plate 92 of the heat dissipation part 90 is inclined.

[0067] The bracket 61 of the electronic component 60 includes an inclined abutment plate 616, which extends inclined downward from the first side plate 611. The inclination angle of the abutment plate 616 is the same as that of the heat-conducting plate 92. During sonar assembly, firstly, a heat-conducting pad 130 is attached to the surface of the abutment plate 616 of the bracket 61. The heat-conducting pad 130 can be made of rubber or silicone. As the electronic component 60 descends into the cavity 11 of the cabin 10, the heat-conducting pad 130 adheres to the heat-conducting plate 92. As the electronic component 60 descends further, the abutment plate 616 of the bracket 61 presses the heat-conducting pad 130 towards the heat-conducting plate 92. That is, the thermally conductive pad 130 is located between the abutment plate 616 and the thermally conductive plate 92. In this way, the thermally conductive pad 130 will not affect the speed at which heat is conducted from the bracket 61 to the thermally conductive plate 92, and it can also prevent the abutment plate 616 and the thermally conductive plate 92 from rubbing against each other. After assembly, because the abutment plate 616 and the thermally conductive plate 92 are pressed against each other, the electronic part 60 can be reliably suspended in the cavity 11 of the cabin 10, avoiding shaking.

[0068] In the sonar of the present invention, the cable 70 has a connector 71 which is detachably mounted to the cable hole 12 of the housing 10, wherein after the connector 71 is mounted to the cable hole 12 of the housing 10, there is good watertightness between the connector 71 and the housing 10.

[0069] Specifically, the connector 71 of the cable 70 has a retractable section 711 and a first annular groove 712 and a second annular groove 713 respectively disposed in the retractable section 711. After a sealing ring 100 is fitted onto the retractable section 711 and a portion of the sealing ring 100 sinks into the first annular groove 712, the retractable section 711 of the connector 71 is allowed to extend from the outside to the inside of the cavity 11 through the cable hole 12 of the housing 10. At this time, the sealing ring 100 is clamped between the retractable section 711 and the housing 10. Then, the inner side of a retaining ring 140 is inserted into the connector 71. The second annular groove 713 and the outer side of the retaining ring 140 abut against the edge of the cable hole 12 of the housing 10, so that the retaining ring 140 prevents the connector 711 from exiting the cable hole 12 of the housing 10. Then, the threaded end of the screw 1000 is allowed to extend into the second threaded hole 102 of the housing 10 after passing through the second screw hole 7111 of the connector 711, and the threaded end of the screw 1000 is screwed into the housing 10, so that the screw 1000 prevents the connector 71 from rotating relative to the housing 10. Thus, the connector 711 is installed in the housing 10.

[0070] The above descriptions are merely embodiments of the invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this invention, and these should also be considered within the scope of protection of this invention. These modifications and improvements will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sonar, characterized in that, include: Nut; Receiver array; Electronic components; The transducer has a threaded column; The cabin has a cavity and cable holes communicating with the cavity; A cable, one end of which extends through the cable hole in the cabin body into the cabin cavity; The hatch cover has stud holes and mounting holes. The threaded post of the transducer extends from the outside to the inside of the hatch cover through the stud holes. The nut is screwed onto the threaded post of the transducer on the inside of the hatch cover. The receiving array is vulcanized in the mounting holes of the hatch cover. The electronic components are mounted on the inside of the hatch cover. The hatch cover is watertightly installed on the cabin body to seal the opening of the cabin cavity of the cabin body. The receiving array, the transducer, and the cable are respectively connected to the electronic components.

2. The sonar according to claim 1, wherein the cabin is made of plastic, and the inner walls of the cabin are respectively provided with a first rib and a second rib on opposite sides, the cover is made of alloy, the electronic part includes a circuit board and a metal or alloy bracket, the bracket includes a first side plate, a second side plate and a connecting plate, the first side plate and the second side plate are arranged facing each other, the connecting plate connects the bottom of the first side plate and the bottom of the second side plate, the bracket forms a bracket cavity between the first side plate, the second side plate and the connecting plate, the circuit board is installed in at least one of the first bracket and the second bracket, and the circuit board is located in the bracket cavity, the top of the first bracket and the top of the second bracket are respectively installed on the cover to install the electronic part on the inner side of the cover, wherein the first side plate abuts against the first rib of the cabin, and the second side plate abuts against the second rib of the cabin.

3. The sonar according to claim 2, wherein the first side plate, the second side plate and the connecting plate are formed by bending a single metal plate or alloy plate along a predetermined position.

4. The sonar according to claim 2 or 3, wherein the cabin has a perforation that communicates with the cabin cavity, and the sonar further includes a heat dissipation unit that is watertightly installed in the perforation of the cabin, and the inner side of the heat dissipation unit is attached to the bracket of the electronic part.

5. The sonar according to claim 4, wherein the heat dissipation part comprises a heat dissipation plate and a heat conduction plate, the heat dissipation plate is stacked on the outer wall of the cabin and covers the perforated hole, the heat conduction plate is stacked on the inner wall of the cabin and covers the perforated hole, and the threaded end of the screw extends into the threaded hole of the heat dissipation plate after passing through the screw hole of the heat conduction plate, so as to screw the threaded end of the screw onto the heat dissipation plate.

6. The sonar according to claim 5, wherein the heat sink has a positioning block, the shape and size of the positioning block matching the shape and size of the perforated hole of the cabin, the positioning block extending into the perforated hole of the cabin, wherein the threaded hole of the heat sink is provided in the positioning block.

7. The sonar according to any one of claims 1 to 3, wherein the cabin has a cabin opening communicating with the cabin cavity, wherein the sonar further includes a temperature sensor, the temperature sensor being watertightly mounted in the cabin opening of the cabin, the inner end of the temperature sensor being connected to the electronic part, and the outer end being exposed to the outside of the sonar.

8. The sonar according to any one of claims 1 to 3, wherein the sonar further comprises a position sensor disposed in the electronic part for outputting the three-dimensional attitude of the sonar.

9. A method for assembling sonar, characterized in that, The assembly method is used to assemble the sonar as described in claim 1, wherein the assembly method includes the following steps: S1, insert one end of the cable through the cable hole of the cabin body into the cabin cavity; S2, after at least a portion of the receiving array is received in the mounting hole of the hatch cover, the receiving array is vulcanized on the hatch cover; S3, after the threaded post of the transducer extends from the outside to the inside of the hatch cover through the stud hole of the hatch cover, the nut is placed on the threaded post of the transducer to install the transducer on the hatch cover; S4, the top of the electronic component is installed on the hatch, wherein the receiver array and the transducer are respectively connected to the electronic component; S5, after connecting the cable and the electronic component, the cover is watertightly installed on the cabin body, and the cover closes the opening of the cabin cavity of the cabin body, wherein the electronic component is suspended in the cabin cavity of the cabin body by the cover.

10. The assembly method according to claim 9, wherein a heat sink is installed on the housing before step S1 or after step S2, and after step S5, the inner side of the heat sink is attached to the bracket of the electronic part.

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