Underwater acoustic device and method of assembling the same

Abstract

This invention discloses an underwater acoustic device and its assembly method. The underwater acoustic device includes a pressure sensor, a waterproof column, and a communication unit body. The waterproof column has a column perforation. The communication unit body includes a housing, an electronic component, a transducer, and a watertight terminal. The housing has a housing space, a mounting hole, and a water inlet. The mounting hole communicates with the housing space, and the water inlet communicates with the mounting hole and the external environment. The electronic component is housed in the housing space of the housing and has a converter circuit board. The transducer is mounted on the housing and connected to the electronic component. The watertight terminal is mounted on the housing and connected to the electronic component. The pressure sensor is attached to the converter circuit board. The bottom of the waterproof column is watertightly covered by the top of the pressure sensor, and the top of the waterproof column is watertightly mounted to the mounting hole of the housing.

Description

Technical Field

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

[0002] Underwater acoustic devices utilize the propagation of sound waves in water to achieve information transmission, underwater target detection, positioning, navigation, and / or identification. Examples include sonar and underwater communication devices. In Chinese invention patent application CN119716823A, the inventors disclosed a sonar with a pressure sensor. This sonar includes a sonar body and a pressure sensor. The sonar body has a mounting slot, and the pressure sensor is installed in the mounting slot. When the sonar enters the water and the sonar body detects underwater objects by emitting and receiving sound wave signals, the pressure sensor can measure the current depth of the sonar by measuring the water pressure. This allows the sonar to obtain more accurate and comprehensive data about the detected area. Existing sonar technologies suffer from the problem of excessively large pressure sensors. This issue directly leads to a series of chain reactions. On the one hand, the large size of the pressure sensor requires the sonar body to reserve a matching assembly slot, which not only occupies valuable internal space and reduces the layout margin of core components such as transducers and signal processing modules, but also increases the overall size and structural complexity of the sonar. On the other hand, the excessive size of the pressure sensor makes it difficult to effectively reduce the volume and weight of the sonar, which contradicts the current mainstream development trend of miniaturization, lightweighting, and portability of sonars. This also fails to meet the stringent size requirements of underwater drones and small detection equipment for their mounted components, thus limiting the widespread application of sonars in underwater assembly. Therefore, how to achieve miniaturization, lightweighting, and portability of underwater acoustic devices is the technical problem that the inventors of this invention are committed to solving. Summary of the Invention

[0003] One object of the present invention is to provide an underwater acoustic device and an assembly method thereof, wherein the pressure sensor of the underwater acoustic device is attached to the adapter circuit board of the electronic part, such that the pressure sensor is housed in the housing space of the housing of the underwater acoustic device. In this way, the housing does not need to be provided with an assembly slot for mounting the pressure sensor, which is beneficial to reduce the size of the underwater acoustic device and enable the underwater acoustic device to be miniaturized.

[0004] One object of the present invention is to provide an underwater acoustic device and its assembly method, wherein the bottom of the waterproof column of the underwater acoustic device is watertightly covered on the top of the pressure sensor, and the top of the waterproof column is watertightly installed in the mounting hole of the housing. After the underwater acoustic device is submerged in water, water from the external environment can reach the top of the pressure sensor through the water inlet of the housing and the perforation of the column body of the waterproof column, so that the pressure sensor can measure the current water pressure of the environment. Furthermore, the waterproof column can prevent water from entering the housing space of the housing, thereby ensuring the watertightness of the underwater acoustic device.

[0005] One object of the present invention is to provide an underwater acoustic device and its assembly method. Since the pressure sensor is attached to the adapter circuit board and the adapter circuit board can be locked to the cover of the housing by screws or self-tapping screws, the underwater acoustic device may have large tolerances that cause the pressure sensor to tilt slightly. By setting the waterproof column between the housing and the pressure sensor, the watertightness of the underwater acoustic device can be effectively guaranteed, thereby improving the reliability of the underwater acoustic device.

[0006] One object of the present invention is to provide an underwater acoustic device and an assembly method thereof, wherein the underwater acoustic device allows the bottom of the waterproof column to be watertightly covered on the top of the pressure sensor and allows the top of the waterproof column to be watertightly installed in the mounting hole of the housing, so that the pressure sensor can be selected with smaller size and weight specifications, which is beneficial to achieving the lightweight and portability of the underwater acoustic device.

[0007] One object of the present invention is to provide an underwater acoustic device and its assembly method, wherein the underwater acoustic device has a light-emitting part mounted on the adapter circuit board and a light guide part mounted on the cover of the housing, and the positions of the light-emitting part and the light guide part correspond in the height direction, so that the light generated by the light-emitting part radiates outward after passing through the light guide part, so that the operator can judge the working status of the underwater acoustic device by whether the light-emitting part emits light and / or the type of light emitted.

[0008] One object of the present invention is to provide an underwater acoustic device and its assembly method, wherein the underwater acoustic device is provided with a water-contact switch in the light guide section. In this way, the underwater acoustic device has a higher degree of integration, which not only simplifies the assembly process of the underwater acoustic device, but also allows the underwater acoustic device to have a smaller size, which is beneficial to the miniaturization of the underwater acoustic device.

[0009] One object of the present invention is to provide an underwater acoustic device and its assembly method, wherein the transducer of the underwater acoustic device is mounted on a first assembly platform of the housing, and a watertight terminal is mounted on a second assembly platform of the housing, and the first assembly platform is higher than the second assembly platform, so that the position of the transducer is raised, which helps to avoid the watertight terminal from blocking the transducer from transmitting and receiving underwater acoustic signals.

[0010] One object of the present invention is to provide an underwater acoustic device and its assembly method, wherein the underwater acoustic device has a conductive element disposed below the longitudinal support of the electronic component. The structure of the conductive element allows reliable conductivity between the substrate of the cover, the electronic component, the conductive element, and the substrate of the housing, thereby achieving cathodic protection for the cover and the housing by simply placing a sacrificial anode in the housing. Even with repeated disassembly and maintenance of the underwater acoustic device, the spring of the conductive element is not prone to metal fatigue, thus ensuring reliable conductivity between the longitudinal support of the electronic component and the substrate of the housing.

[0011] According to one aspect of the present invention, an underwater acoustic device is provided, comprising: Pressure sensor; Waterproof column, wherein the waterproof column has a column body perforation; and A communication device body, comprising a housing, electronic components, a transducer, and a watertight terminal. The housing has a housing space, a mounting hole, and a water inlet. The mounting hole communicates with the housing space, and the water inlet communicates with the mounting hole and the external environment. The electronic components are housed within the housing space of the housing and have an adapter circuit board. The transducer is mounted on the housing and connected to the electronic components. The watertight terminal is mounted on the housing and connected to the electronic components. A pressure sensor is attached to the adapter circuit board. The bottom of a waterproof column is watertightly covered over the top of the pressure sensor, and the top of the waterproof column is watertightly mounted to the mounting hole of the housing.

[0012] According to one embodiment of the present invention, the underwater acoustic device includes a sealing ring, which is clamped between the bottom of the waterproof column and the top of the pressure sensor, and between the top of the waterproof column and the housing.

[0013] According to one embodiment of the present invention, the housing has an adjacent first assembly platform and a second assembly platform, the first assembly platform being higher than the second assembly platform, the transducer being mounted on the first assembly platform, and the watertight terminal being mounted on the second assembly platform.

[0014] According to one embodiment of the present invention, the external opening of the water inlet of the housing is provided on the first assembly platform.

[0015] According to one embodiment of the present invention, the underwater acoustic device includes a light-emitting part and a light-guiding part. The light-emitting part is mounted on the adapter circuit board. The housing has a housing hole that communicates with the housing space and the external environment. The light-guiding part is watertightly installed in the housing hole of the housing. The positions of the light-emitting part and the light-guiding part correspond in the height direction. The light emitted by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light-guiding part.

[0016] According to one embodiment of the present invention, the light guide portion has two adjacent switch holes, the underwater acoustic device includes a water-touch switch, the water-touch switch includes two switch posts, each of the switch posts is watertightly installed in each of the switch holes of the light guide portion, the inner end of each of the switch posts is connected to the adapter circuit board, and the outer ends are exposed to the outside of the underwater acoustic device.

[0017] According to one embodiment of the present invention, the underwater acoustic device includes a water-touch switch, the water-touch switch includes two mutually spaced-apart switch posts, the light guide portion is formed to wrap around the middle of each of the switch posts, the inner end of each of the switch posts is respectively connected to the adapter circuit board, and the outer ends are exposed to the outside of the underwater acoustic device.

[0018] According to another aspect of the present invention, the present invention further provides a method for assembling an underwater acoustic device, wherein the assembly method includes the following steps: S1, the transducer and watertight terminal are respectively installed on the cover of the housing; S2, the adapter circuit board for mounting the pressure sensor to the electronic components; S3, the bottom of the waterproof column is watertightly covered at the top of the pressure sensor; S4, after the top of the waterproof column is watertightly inserted into the mounting hole of the cover, the adapter circuit board is locked to the cover, wherein the transducer and the watertight terminal are respectively connected to the adapter circuit board; S5, the cover is installed on the housing of the cover, and the electronic part is suspended by the cover in the housing space formed between the housing and the cover.

[0019] According to an embodiment of the present invention, in step S2, the assembly method includes the step of attaching the light-emitting part to the adapter circuit board. Before step S4, the assembly method includes the step of installing the light guide part to the cover hole of the cover, wherein the position of the light-emitting part and the position of the light guide part correspond in the height direction, and the light generated by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light guide part.

[0020] According to an embodiment of the present invention, in step S2, the assembly method includes the step of attaching the light-emitting part to the adapter circuit board. After step S4, the assembly method includes the step of installing the light guide part to the cover hole of the cover, wherein the position of the light-emitting part and the position of the light guide part correspond in the height direction, and the light generated by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light guide part. Attached Figure Description

[0021] Figure 1 This is a perspective view of an underwater acoustic device according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a perspective view of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0023] Figure 3 This is a side view schematic diagram of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0024] Figure 4 This is an exploded view of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0025] Figure 5 This is an exploded view of a partial location of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0026] Figure 6 This is an exploded view of another partial location of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0027] Figure 7 This is an exploded view of another partial location of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0028] Figure 8 This is an exploded view of another partial location of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0029] Figure 9This is a cross-sectional schematic diagram of the first position of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0030] Figure 10 This is a cross-sectional schematic diagram of the second position of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0031] Figure 11 yes Figure 10 A magnified view of a local location.

[0032] Figure 12 This is a cross-sectional schematic diagram of the third position of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0033] Figure 13 yes Figure 12 A magnified view of one of the locations.

[0034] Figure 14 yes Figure 12 A magnified view of another location.

[0035] Figure 15 This is a cross-sectional schematic diagram of the fourth position of the underwater acoustic device according to the above-described preferred embodiment of the present invention.

[0036] Figure 16 yes Figure 15 A magnified view of one of the locations.

[0037] Figure 17 yes Figure 15 A magnified view of another location. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0039] 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 can 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.

[0040] 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.

[0041] Refer to the accompanying drawings of the specification of this invention. Figures 1 to 17 An underwater acoustic device according to a preferred embodiment of the present invention will be disclosed and described in the following description, wherein the underwater acoustic device includes a communication device body 10, a pressure sensor 20 and a waterproof column 30.

[0042] Specifically, the main body 10 of the communication device includes a housing 11, an electronic component 12, a transducer 13, and a watertight terminal 14. The housing 11 has a housing space 1101, a mounting hole 1102, and a water inlet 1103. The mounting hole 1102 communicates with the housing space 1101, and the water inlet 1103 communicates with the mounting hole 1102 and the external environment. The electronic component 12 is housed in the housing space 1101 of the housing 11 and has a converter circuit board 121. The transducer 13 and the watertight terminal 14 are respectively mounted on the housing 11 and respectively connected to the converter circuit board 121.

[0043] Unlike existing technologies, in the underwater acoustic device of the present invention, the pressure sensor 20 is mounted on the adapter circuit board 121, and the adapter circuit board 121 holds the pressure sensor 20 in the housing space 1101 of the housing 11. In this way, on the one hand, the pressure sensor 20 does not need to be designed with a special waterproof structure, which helps to reduce the size and cost of the pressure sensor 20. On the other hand, the housing 11 does not need to be provided with an assembly slot for mounting the pressure sensor 20, which helps to reduce the size of the underwater acoustic device and make the underwater acoustic device miniaturized. Furthermore, since the pressure sensor 20 can be selected with smaller size and weight specifications, it is beneficial to achieve the lightweight and portability of the underwater acoustic device.

[0044] Because the pressure sensor 20 has a small size, especially a small height, to improve the watertightness of the underwater acoustic device, in this invention, the bottom of the waterproof column 30 is watertightly covered by the top of the pressure sensor 20, and the top of the waterproof column 30 is watertightly installed in the mounting hole 1102 of the housing 11. Thus, the column through-hole 31 of the waterproof column 30 and the water inlet 1103 of the housing 11 are connected. After the underwater acoustic device is submerged, water from the external environment flows sequentially through the water inlet 1103 of the housing 11 and the column through-hole 31 of the waterproof column 30 before reaching the top of the pressure sensor 20. The pressure sensor 20 detects the current water pressure to determine the submersion depth of the underwater acoustic device. Since the bottom of the waterproof column 30 is watertightly covered on the top of the pressure sensor 20 and the top of the waterproof column 30 is watertightly installed in the mounting hole 1102 of the housing 11, water flowing through the water inlet 1103 of the housing 11 and the column perforation 31 of the waterproof column 30 will not enter the housing space 1101 of the housing 11, thereby ensuring the watertightness of the underwater acoustic device.

[0045] The cover 11 further includes a housing 111 and a cover 112, which are mounted to each other to form a cover space 1101 between the housing 111 and the cover 112. The mounting hole 1102 and the water inlet hole 1103 of the cover 11 are both provided in the cover 112. Specifically, the mounting hole 1102 of the cover 11 extends from the inner wall of the cover 112 to the outer wall, and the water inlet hole 1103 extends from the mounting hole 1102 to the outer wall of the cover 112, so that the mounting hole 1102 communicates with the cover space 1101, and the water inlet hole 1103 communicates with the mounting hole 1102 and the external environment.

[0046] Reference Appendix Figure 5 and Figure 6The cover 112 has a first mounting hole 1121 and a second mounting hole 1122. The transducer 13 has a constricted inner end 131 with an external thread. After the inner end 131 of the transducer 13 passes through the first mounting hole 1121 of the cover 112 from the outside in, a nut 40 is screwed onto the inner end 131 of the transducer 13. Thus, the main body of the transducer 13 and the nut 40 cooperate to assemble the transducer 13 onto the cover 112. The transducer 13 is then installed on the housing 11, wherein the watertight terminal 14 has a constricted inner terminal 141 with an external thread structure. After the inner terminal 141 of the watertight terminal 14 passes through the second mounting hole 1122 of the cover 112 from the outside in, another nut 40 is screwed onto the inner terminal 141. Thus, the main body of the watertight terminal 14 and the nut 40 cooperate to assemble the watertight terminal 141 onto the cover 112, thereby installing the watertight terminal 14 onto the housing 11.

[0047] In the underwater acoustic device of the present invention, since the pressure sensor 20 is attached to the adapter circuit board 121 and the adapter circuit board 121 can be locked to the cover 112 of the housing 11 by screws or self-tapping screws, the underwater acoustic device may have large tolerances that cause the pressure sensor 20 to tilt slightly. In this case, if the pressure sensor 20 directly extends into the mounting hole 1102 of the housing 11 and watertight treatment is performed between the two, there will be a large risk of water leakage. Therefore, in the present invention, by setting the waterproof column 30 between the housing 11 and the pressure sensor 20, and allowing the bottom of the waterproof column 30 to be watertightly covered on the top of the pressure sensor 20 and the top of the waterproof column 30 to be watertightly installed in the mounting hole 1102 of the housing 11, the watertightness of the underwater acoustic device can be effectively guaranteed, thereby improving the reliability of the underwater acoustic device. In other words, the attitude of the waterproof column 30 can be adaptively adjusted to eliminate the adverse effects of tolerances on the watertightness of the underwater acoustic device.

[0048] Specifically, the underwater acoustic device further includes multiple sealing rings 50, wherein at least one sealing ring 50 is clamped between the bottom of the waterproof column 30 and the top of the pressure sensor 20. Even if there is a slight tilt between the waterproof column 30 and the pressure sensor 20, this sealing ring 50 can ensure the watertightness of the joint between the waterproof column 30 and the pressure sensor 20, ensuring that the bottom of the waterproof column 30 is watertightly covered by the top of the pressure sensor 20. At least one sealing ring 50 is clamped between the top of the waterproof column 30 and the cover 112, wherein even if there is a slight tilt between the waterproof column 30 and the cover 112, this sealing ring 50 can ensure the watertightness of the joint between the waterproof column 30 and the cover 112, ensuring that the top of the waterproof column 30 is watertightly installed in the mounting hole 1102 of the cover 11. In other words, these sealing rings 50, while ensuring the watertightness of the joint between the waterproof column 30 and the pressure sensor 20, and the joint between the waterproof column 30 and the cover 112, allow the attitude of the waterproof column 30 to be adaptively adjusted to eliminate the adverse effects of tolerances on the watertightness of the underwater acoustic device.

[0049] The bottom of the waterproof column 30 has a receiving groove 32 and a first positioning groove 33 surrounding the receiving groove 32. The inner diameter of the receiving groove 32 is slightly larger than the outer diameter of the top of the pressure sensor 20. The depth of the first positioning groove 33 is smaller than the diameter of the cross-sectional shape of the sealing ring 50. When the outer side of the sealing ring 50 is positioned in the first positioning groove 33 of the waterproof column 30, the inner side of the sealing ring 50 protrudes into the receiving groove 32. After the top of the pressure sensor 20 extends into the receiving groove 32 of the waterproof column 30, the sealing ring 50 is bound to the top of the pressure sensor 20. The top of the pressure sensor 20 and the bottom of the waterproof column 30 compress the sealing ring 50, causing the sealing ring 50 to deform and increasing the watertightness of the joint between the top of the pressure sensor 20 and the bottom of the waterproof column 30. It is understandable that, since the inner diameter of the receiving groove 32 of the waterproof column 30 is slightly larger than the outer diameter of the top of the pressure sensor 20, the waterproof column 30 can be tilted relative to the pressure sensor 20 while ensuring that the bottom of the waterproof column 30 is watertightly covered by the top of the pressure sensor 20, so as to eliminate the adverse effects of tolerance on the watertightness of the underwater acoustic device.

[0050] The top of the waterproof column 30 has at least one second positioning groove 34. The depth of the second positioning groove 34 is smaller than the diameter of the cross-sectional shape of the sealing ring 50. When the inner side of the sealing ring 50 is positioned in the second positioning groove 34 of the waterproof column 30, the outer side of the sealing ring 50 protrudes from the peripheral wall of the top of the waterproof column 30. Thus, after the top of the waterproof column 30 is inserted into the mounting hole 1102 of the cover 11, the top of the waterproof column 30 and the cover 112 squeeze the sealing ring 50, causing the sealing ring 50 to deform and increasing the water tightness of the joint between the top of the waterproof column 30 and the cover 112. In one example, the outer diameter of the top of the waterproof column 30 can be slightly smaller than the inner diameter of the mounting hole 1102 of the housing 11. This allows the waterproof column 30 to tilt relative to the cover 112 after it is watertightly installed in the mounting hole 1102 of the housing 11, thus adaptively adjusting its attitude and eliminating the adverse effects of tolerances on the watertightness of the underwater acoustic device. In another example, the outer diameter of the top of the waterproof column 30 is the same as the inner diameter of the mounting hole 1102 of the housing 11.

[0051] In this invention, the cover 112 of the housing 11 has an insertion portion 1123 and a cover groove 1124 surrounding the cover 1123. The housing 111 has a housing groove 1111 and a channel 1112 extending from the housing groove 1111 to the outer wall. After the insertion portion 1123 of the cover 112 is inserted into the top of the housing 111, the housing groove 1111 of the housing 111 and the cover groove 1124 of the cover 112 correspond horizontally. A flexible rope 60 (e.g., made of nylon) is also included. A rope 60 can pass through the channel 1112 of the housing 111 into the housing groove 1111 of the housing 111 and the cover groove 1124 of the cover 112. After insertion, the outer side of the rope 60 is held in the housing groove 1111 of the housing 111, and the inner side is held in the cover groove 1124 of the cover 112. Thus, the rope 60 allows the cover 112 to be reliably installed on the housing 111, so as to form the cover space 1101 of the cover 11 between the housing 111 and the cover 112.

[0052] Preferably, the cover 112 has a third positioning groove 1125 in the insertion part 1123. The third positioning groove 1125 is located below the groove 1124 of the cover. The depth of the third positioning groove 1125 is smaller than the diameter of the cross-sectional shape of the sealing ring 50. After the sealing ring 50 is positioned inside the third positioning groove 1125 of the cover 112, the outer side of the sealing ring 50 protrudes from the peripheral wall of the insertion part 1123. Thus, after the insertion part 1123 of the cover 112 is inserted into the top of the housing 111, the insertion part 1123 of the cover 112 and the housing 111 squeeze the sealing ring 50, causing the sealing ring 50 to deform and increasing the water tightness between the cover 112 and the housing 111.

[0053] In the appendix Figures 1 to 17 In the underwater acoustic device of the present invention shown, the substrate of the housing 111 and the substrate of the cover 112 of the enclosure 11 are both made of aluminum alloy, and their surfaces are anodized to increase the corrosion resistance of the housing 111 and the cover 112. Optionally, in other examples, the substrate of the housing 111 and the substrate of the cover 112 of the enclosure 11 may also be made of titanium alloy.

[0054] Reference Appendix Figures 1 to 6 The housing 11 has a first assembly platform 1104 and a second assembly platform 1105. The first assembly platform 1104 and the second assembly platform 1105 are adjacent to each other, and the first assembly platform 1104 is higher than the second assembly platform 1105. The transducer 13 is installed on the first assembly platform 1104, and the watertight terminal 14 is installed on the second assembly platform 1105. In this way, the position of the transducer 13 is raised, which helps to avoid the watertight terminal 14 from blocking the transducer 13 from transmitting and receiving underwater acoustic signals, thereby ensuring the performance of the underwater acoustic device.

[0055] In this invention, the first mounting perforation 1121 of the cover 112 is provided on the first mounting platform 1104 of the housing 11, so that the transducer 13 is mounted on the first mounting platform 1104 of the housing 11, and the second mounting perforation 1122 of the cover 112 is provided on the second mounting platform 1105 of the housing 11, so that the transducer 13 is mounted on the second mounting platform 1105 of the housing 11.

[0056] The external opening of the water inlet hole 1103 of the cover 11 is provided on the first assembly platform 1104. Therefore, the mounting hole 1102 of the cover 11 is provided at the position of the cover 112 for forming the first assembly platform 1104. Thus, the mounting hole 1102 of the cover 11 can have a large depth dimension, which is beneficial for the top of the waterproof column 30 to be reliably and watertightly installed in the mounting hole 1102 of the cover 11.

[0057] Reference Appendix Figure 1 , Figures 4 to 6 The underwater acoustic device further includes a light-emitting part 70 and a light-guiding part 80. The light-emitting part 70 is mounted on the adapter circuit board 121. The housing 11 also has a housing hole 1106, which connects the housing space 1101 and the external environment. The light-guiding part 80 is watertightly installed in the housing hole 1106 of the housing 11. The positions of the light-emitting part 70 and the light-guiding part 80 correspond in the height direction. The light emitted by the light-emitting part 70 radiates to the outside of the underwater acoustic device after passing through the light-guiding part 80. In this way, the operator can determine the working status of the underwater acoustic device by whether the light-emitting part 70 emits light and / or the type of light emitted. In this invention, the housing hole 1106 of the housing 11 is located in the cover 112, so the light-guiding part 80 is installed in the cover 112.

[0058] Reference Appendix Figure 5 , Figure 6 , Figure 10 and Figure 11 The light guide portion 80 has a first abutment edge 81 at its outer end and a first retaining spring groove 82 at its inner end. The outer diameter of the first abutment edge 81 of the light guide portion 80 is larger than the inner diameter of the cover hole 1106 of the cover 11. The outer diameter of the middle section of the light guide portion 80 is the same as the inner diameter of the cover hole 1106 of the cover 11. After the inner end of the light guide portion 80 passes through the cover hole 1106 of the cover 11 from the outside to the inside, the inner side of a retaining spring 90 is engaged in the first retaining spring groove 82 of the light guide portion 80. The outer side of the retaining spring 90 is attached to the inner wall of the cover 112. Thus, the first abutment edge 81 of the light guide portion 80 and the retaining spring 90 cooperate with each other to reliably install the light guide portion 80 onto the cover 112.

[0059] Preferably, the middle section of the light guide portion 80 is provided with at least one fourth positioning groove 83. The depth dimension of the fourth positioning groove 83 is smaller than the outer diameter dimension of the cross-sectional shape of the sealing ring 50. After the sealing ring 50 is positioned inside the fourth positioning groove 83 of the light guide portion 80, the outer side of the sealing ring 50 protrudes outside the middle section of the light guide portion 80. Thus, after the middle section of the light guide portion 80 is held in the cover hole 1106 of the cover 11, the sealing ring 50 is squeezed and deformed by the light guide portion 80 and the cover 112 to increase the water tightness of the joint position of the light guide portion 80 and the cover 112.

[0060] Continue to refer to the appendix Figure 10 and Figure 11 The light guide portion 80 further has two adjacent switch holes 84. The underwater acoustic device includes a water-touch switch 100, which includes two switch posts 101. Each switch post 101 is watertightly installed in each of the switch holes 84 of the light guide portion 80. The outer end of each switch post 101 is exposed outside the underwater acoustic device, and the inner end is connected to the adapter circuit board 121. After the underwater acoustic device enters the water, the two switch posts 101 can be turned on. Therefore, the underwater acoustic device can determine whether it has entered the water by judging whether the two switch posts 101 are turned on. In this invention, by setting the water-touch switch 100 in the light guide portion 80, the underwater acoustic device can have a higher degree of integration, which not only simplifies the assembly process of the underwater acoustic device, but also allows the underwater acoustic device to have a smaller size, which is beneficial for miniaturization of the underwater acoustic device.

[0061] Alternatively, in other examples of the underwater acoustic device of the present invention, the insert injection molding process can combine the two switch posts 101 and the light guide 80 into a whole, so that the light guide 80 wraps around the middle of each switch post 101 during molding. This helps to ensure the watertightness of the joint between the light guide 80 and the switch post 101.

[0062] Next, refer to the appendix. Figure 10 and Figure 11In the underwater acoustic device of the present invention, the light guide portion 80 is formed by machining, therefore the switching hole 84 of the light guide portion 80 is drilled, and the switching post 101 is installed in the switching hole 84 of the light guide portion 80. To ensure that the switching post 101 is reliably installed in the switching hole 84 of the light guide portion 80 and to ensure the watertightness of the joint between the switching post 101 and the light guide portion 80, in the present invention, the outer end of the switching post 101 is provided with a second abutment edge 1011, and the inner end of the switching post 101 is provided with a second snap ring groove 1012. The outer diameter of the second abutment edge 1011 of the switching post 101 is larger than the inner diameter of the switching hole 84 of the light guide portion 80, and the switching post 101... The outer diameter of the middle section is the same as the inner diameter of the switch hole 84 of the light guide 80. After the inner end of the switch post 101 passes through the switch hole 84 of the light guide 80 from the outside to the inside, the inner side of the retaining spring 90 is engaged in the second retaining spring groove 1012 of the switch post 101, and the outer side of the retaining spring 90 is attached to the light guide 80. Thus, the second abutment edge 1011 of the switch post 101 and the retaining spring 90 cooperate with each other to reliably install the switch post 101 onto the light guide 80.

[0063] Preferably, the middle section of the switch post 101 is provided with at least one fifth positioning groove 1013. The depth of the fifth positioning groove 1013 is smaller than the outer diameter of the cross-sectional shape of the sealing ring 50. After the sealing ring 50 is positioned inside the fifth positioning groove 1013 of the switch post 101, the outer side of the sealing ring 50 protrudes outside the middle section of the switch post 101. Thus, after the switch post 101 is held in the switch hole 84 of the light guide 80, the sealing ring 50 is squeezed and deformed by the light guide 80 and the switch post 101 to increase the water tightness of the joint position of the light guide 80 and the switch post 101.

[0064] Preferably, the light guide portion 80 has two recessed grooves 85, the position of each recessed groove 85 corresponds one-to-one with the position of the switch hole 84, the depth dimension of the recessed groove 85 is consistent with the height dimension of the second abutment edge 1011 of the switch post 101, and the second abutment edge 1011 of the switch post 101 is recessed into the recessed groove 85 of the light guide portion 80 to prevent the switch post 101 from protruding from the top of the light guide portion 80.

[0065] Continue to refer to the appendix Figure 10 and Figure 11The adapter circuit board 121 has two insertion holes 1211. After the inner ends of each of the switch posts 101 of the water-touch switch 100 are respectively inserted into the insertion holes 1211 of the adapter circuit board 121, the inner ends of the switch posts 101 and the adapter circuit board 121 are soldered to conduct electricity between the switch posts 101 and the adapter circuit board 121. It can be understood that the size of the insertion holes 1211 of the adapter circuit board 121 is slightly larger than the size of the inner ends of the switch posts 101, so as to facilitate the insertion of the inner ends of the switch posts 101 into the insertion holes 1211 of the adapter circuit board 121.

[0066] Further, see attached document. Figures 7 to 9The electronic component 12 includes a horizontal support 122, a first vertical support 123a, a second vertical support 123b, a third vertical support 123c, a first circuit board 124a, a second circuit board 124b, a third circuit board 124c, a fourth circuit board 124d, a battery 125, and a battery compartment 126. After the first circuit board 124a is stacked on one side of the first longitudinal support 123a, a set of screws is used to lock the first circuit board 124a and the first longitudinal support 123a; after the second circuit board 124b is stacked on the other side of the first longitudinal support 123a and the second longitudinal support 123b is stacked on the second circuit board 124b, a set of screws is used to lock the second longitudinal support 123b, the second circuit board 124b, and the first longitudinal support 123a; after the third circuit board 124c is stacked on the other side of the second longitudinal support 123b, the third longitudinal support 123c is stacked on the other side of the third circuit board 124c, and the fourth circuit board 124d is stacked on the other side of the third longitudinal support 123c, a set of screws is used to lock the fourth circuit board 124d and the third longitudinal support 123c. The third circuit board 124c and the second longitudinal support 123b; a set of screws is used to lock the transverse support 122 to the top of the first longitudinal support 123a, a set of screws is used to lock the transverse support 122 to the top of the second longitudinal support 123b, and a set of screws is used to lock the transverse support 122 to the top of the third longitudinal support 123c, wherein a mating plug 1241 of the second circuit board 124b extends into the clearance hole 1221 of the transverse support 122; after the mating plug 1241 of the second circuit board 124b and the mating socket 1212 of the adapter circuit board 121 are inserted, a set of screws is used to lock the transverse support 122 to the cover 112; after the battery 125 is housed inside the battery compartment 126, a set of screws is used to lock the battery compartment 126 to the third longitudinal support 123c. With the above-described structure, the cover 112 can suspend the electronic component 12 within the housing space 1101 of the housing 11. It is understood that in this invention, the first circuit board 124a and the second circuit board 124b are connected, the third circuit board 124c and the second circuit board 124b are connected, the fourth circuit board 124d and the third circuit board 124c are connected, and the battery 125 can be connected to the fourth circuit board 124d. Specifically, a plug and a socket can be used to connect the first circuit board 124a and the second circuit board 124b, to connect the third circuit board 124c and the second circuit board 124b, and to connect the fourth circuit board 124d and the third circuit board 124c.Alternatively, flying wires can be used to connect the first circuit board 124a and the second circuit board 124b, to connect the third circuit board 124c and the second circuit board 124b, and to connect the fourth circuit board 124d and the third circuit board 124c. It is understood that the battery 125 and the fourth circuit board 124d are connected via flying wires.

[0067] In the underwater acoustic device of the present invention, after anodizing the surfaces of the housing 111 and the cover 112 of the enclosure 11, a portion of the inner area of ​​the cover 112 can be removed using a laser cleaning process, exposing a portion of the substrate of the cover 112 to the enclosure space 1101. This allows the substrate of the cover 112 and the transverse support 122 to be connected after the transverse support 122 is screwed into the inner side of the cover 112. Correspondingly, the laser cleaning process is used to remove a portion of the inner area of ​​the housing 111. This exposes a portion of the substrate of the housing 111 within the cover space 1101, allowing the bottom of the second longitudinal support 123b to communicate with the substrate of the housing 111. A laser cleaning process is used to remove a portion of the outer side (e.g., the outer side of the bottom) of the housing 111, exposing a portion of the substrate. The underwater acoustic device further provides a sacrificial anode 110. When a screw is used to lock the sacrificial anode 110 to the housing 111, the sacrificial anode 110 and the substrate of the housing 111 become connected. In other words, the substrate of the cover 112, the transverse support 122, the second longitudinal support 123b, the substrate of the housing 111, and the sacrificial anode 110 are connected. Thus, the underwater acoustic device achieves cathodic protection for both the housing 111 and the cover 112 by simply placing the sacrificial anode 110 at the bottom of the housing 111. This helps reduce the cost of the underwater acoustic device and allows for its miniaturization and weight reduction.

[0068] Reference Appendix Figure 9 , Figures 15 to 17The underwater acoustic device further includes at least one conductive element 120. The top of the conductive element 120 is mounted on the bottom of the second longitudinal support 123b, and the conductive element 120 and the second longitudinal support 123b are conductively connected. The bottom of the conductive element 120 abuts against the exposed portion (exposed position of the substrate) on the inner side of the housing 111, and the conductive element 120 is conductive to the substrate of the housing 111. Thus, the conductive element 120 is used to conduct the connection between the second longitudinal support 123b and the substrate of the housing 111. In this invention, the conductive member 120 includes an assembly cylinder 1201, a spring 1202, and a suspension rod 1203. The assembly cylinder 1201 has a cavity 12011 with a bottom opening. The spring 1202 is compressibly housed in the cavity 12011 of the assembly cylinder 1201. The top of the suspension rod 1203 extends into the cavity 12011 of the assembly cylinder 1201, and the bottom is exposed outside the assembly cylinder 1201. The top of the suspension rod 1203 abuts against the spring 1202. The bottom of the second longitudinal support 123b has at least one mounting hole 1231. The inner diameter of the mounting hole 1231 matches the outer diameter of the assembly cylinder 1201. After the assembly cylinder 1201 is inserted into the mounting hole 1231 of the second longitudinal support 123b, the top of the conductive member 120 is mounted on the bottom of the second longitudinal support 123b. The bottom of the suspension rod 1203 abuts against the exposed inner part of the housing 111, and the housing 111 presses the suspension rod 1203 into the interior of the assembly cylinder 1201. At this time, the spring 1202 is compressed and deformed. The compressed and deformed spring 1202 has a tendency to push the suspension rod 1203 towards the exposed part of the housing 111, so that the bottom of the suspension rod 1203 fits tightly against the exposed part of the housing 111, thereby ensuring that the conductor 120 reliably conducts through the substrate of the housing 111. Compared with the method of using a spring sheet to conduct through the second longitudinal support 123b and the substrate of the housing 111, even if the underwater acoustic device is disassembled and repaired multiple times, the spring 1202 of the conductor 120 will not experience elastic failure. In other words, even after multiple disassemblies and repairs of the underwater acoustic device, the conductive element 120 can still reliably conduct the third longitudinal support 123c and the substrate of the housing 111, which helps to ensure the corrosion resistance of the underwater acoustic device.

[0069] It is worth mentioning that the number of the conductive elements 120 is not limited in the underwater acoustic device of the present invention, for example, in the attached Figures 1 to 17 In this specific example of the underwater acoustic device of the present invention shown, the number of the conductive elements 120 may be four.

[0070] Further, see attached document. Figure 2 , Figures 12 to 17 The underwater acoustic device also includes a back buckle 130, the top of which is mounted on the top of the housing 111 of the cover 11. In this way, a clamping space 140 can be formed between the back buckle 130 and the housing 111, making it convenient for the user to carry the underwater acoustic device.

[0071] The assembly steps of the underwater acoustic device of the present invention are as follows: S1, after the inner end 131 of the transducer 13 passes through the first mounting hole 1121 of the cover 112 from the outside to the inside, a nut 40 is screwed onto the inner end 131 of the transducer 30. Thus, the main body of the transducer 13 and the nut 40 cooperate with each other to assemble the transducer 13 onto the cover 112. S2, after the inner end 141 of the watertight terminal 14 passes through the second mounting hole 1122 of the cover 112 from the outside to the inside, a nut 40 is screwed onto the inner end 141 of the watertight terminal 14. Thus, the main body of the watertight terminal 14 and the nut 40 cooperate with each other to assemble the watertight terminal 14 onto the cover 112. S3, after the sealing ring 50 is fitted into the fifth positioning groove 1013 of each of the switch posts 101, the inner end of the switch post 101 is allowed to pass through the switch hole 84 of the light guide 80 from the outside to the inside, and then the retaining ring 90 is snapped into the second retaining ring groove 1012 of the switch post 101, so that each of the switch posts 101 is watertightly installed in each of the switch holes 84 of the light guide 80; S4, after the sealing ring 50 is fitted into the fourth positioning groove 83 of the light guide 80, the inner end of the light guide 80 is allowed to pass through the cover hole 1106 of the cover 11 from the outside to the inside, and then the retaining ring 90 is snapped into the first retaining ring groove 82 of the light guide 80, so that the light guide 80 is watertightly installed on the cover 112; S5, the bottom of the waterproof column 30 is watertightly covered on the top of the pressure sensor 20, wherein the pressure sensor 20 and the light-emitting part 70 are respectively attached to the adapter circuit board 121; S6, after the top of the waterproof column 30 is watertightly installed in the mounting hole 1102 of the cover 11 and the inner ends of each of the switch columns 101 pass through the insertion holes 1211 of the adapter circuit board 121, the adapter circuit board 121 is locked to the cover 112 using a set of screws, and then the inner ends of each of the switch columns 101 and the adapter circuit board 121 are welded to conduct each of the switch columns 101 and the adapter circuit board 121, wherein the position of the light-emitting part 70 and the position of the light guide part 80 correspond to each other in the height direction, and the transducer 13 and the watertight terminal 14 are respectively connected to the adapter circuit board 121; S7, after locking the first circuit board 124a, the first longitudinal support 123a, the second circuit board 124b, the second longitudinal support 123b, the third circuit board 124c, the third longitudinal support 123c and the fourth circuit board 124d, lock the transverse support 122 with the top of the first longitudinal support 123a, the top of the second longitudinal support 123b and the top of the third longitudinal support 123c. At this time, the transverse support 122 and the second longitudinal support 123b are connected. S8, after the docking plug 1241 of the second circuit board 124b and the docking socket 1212 of the adapter circuit board 121 are plugged in, the transverse bracket 122 is locked to the cover 112 using a set of screws, at which time the substrate of the transverse bracket 122 and the cover 112 are connected. S9, after the battery 125 is housed in the battery compartment 126, the battery compartment 126 is locked to the third longitudinal support 123c using a set of screws; S10, install the cover 112 and the housing 111, the cover 112 suspends the electronic part 12 inside the housing 111 so that the electronic part 12 is received in the housing space 1101 of the cover 11, and the conductor 120 provided at the bottom of the second longitudinal support 123b conducts to the substrate of the housing 111; S11, Install the back buckle 130 onto the housing 111. Through these steps, the underwater acoustic device is assembled.

[0072] According to another aspect of the present invention, the present invention further provides a method for assembling the underwater acoustic device, wherein the assembly method includes the following steps: S1, the transducer 13 and the watertight terminal 14 are respectively installed on the cover 112 of the housing 11; S2, the pressure sensor 20 is mounted on the adapter circuit board 121 of the electronic part 12; S3, the bottom of the waterproof column 30 is watertightly covered to the top of the pressure sensor 20; S4, after the top of the waterproof column 30 is watertightly inserted into the mounting hole 1102 of the cover 11, the adapter circuit board 121 is locked to the cover 112, wherein the transducer 13 and the watertight terminal 14 are respectively connected to the adapter circuit board 121; and S5, the cover 112 is installed on the housing 111 of the cover 11, and the electronic part 12 is suspended by the cover 112 in the cover space 1101 formed between the housing 111 and the cover 112.

[0073] 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. An underwater acoustic device, characterized in that, include: Pressure sensor; Waterproof columns, wherein the waterproof columns have column body perforations; and A communication device body, comprising a housing, electronic components, a transducer, and a watertight terminal. The housing has a housing space, a mounting hole, and a water inlet. The mounting hole communicates with the housing space, and the water inlet communicates with the mounting hole and the external environment. The electronic components are housed within the housing space of the housing and have an adapter circuit board. The transducer is mounted on the housing and connected to the electronic components. The watertight terminal is mounted on the housing and connected to the electronic components. A pressure sensor is attached to the adapter circuit board. The bottom of a waterproof column is watertightly covered over the top of the pressure sensor, and the top of the waterproof column is watertightly mounted to the mounting hole of the housing.

2. The underwater acoustic device according to claim 1, wherein the underwater acoustic device includes a sealing ring, the sealing ring is clamped between the bottom of the waterproof column and the top of the pressure sensor, and the sealing ring is clamped between the top of the waterproof column and the housing.

3. The underwater acoustic device according to claim 1, wherein the housing has adjacent first and second assembly platforms, the first assembly platform being higher than the second assembly platform, the transducer being mounted on the first assembly platform, and the watertight terminal being mounted on the second assembly platform.

4. The underwater acoustic device according to claim 3, wherein the external opening of the water inlet of the housing is provided on the first assembly platform.

5. The underwater acoustic device according to any one of claims 1 to 4, wherein the underwater acoustic device includes a light-emitting part and a light-guiding part, the light-emitting part is mounted on the adapter circuit board, the housing has a housing hole communicating with the housing space and the external environment, the light-guiding part is watertightly installed in the housing hole of the housing, and the positions of the light-emitting part and the light-guiding part correspond in the height direction, and the light generated by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light-guiding part.

6. The underwater acoustic device according to claim 5, wherein the light guide portion has two adjacent switch holes, the underwater acoustic device includes a water-touch switch, the water-touch switch includes two switch posts, each of the switch posts is watertightly installed in each of the switch holes of the light guide portion, the inner end of each of the switch posts is connected to the adapter circuit board, and the outer ends are exposed outside the underwater acoustic device.

7. The underwater acoustic device according to claim 5, wherein the underwater acoustic device includes a water-touch switch, the water-touch switch includes two mutually spaced-apart switch posts, the light guide portion is formed to wrap around the middle of each of the switch posts, the inner ends of each of the switch posts are respectively connected to the adapter circuit board, and the outer ends are exposed outside the underwater acoustic device.

8. A method for assembling an underwater acoustic device, characterized in that, The assembly method includes the following steps: S1, the transducer and watertight terminal are respectively installed on the cover of the housing; S2, the adapter circuit board for mounting the pressure sensor to the electronic components; S3, the bottom of the waterproof column is watertightly covered at the top of the pressure sensor; S4, after the top of the waterproof column is watertightly inserted into the mounting hole of the cover, the adapter circuit board is locked to the cover, wherein the transducer and the watertight terminal are respectively connected to the adapter circuit board; S5, the cover is installed on the housing of the cover, and the electronic part is suspended by the cover in the housing space formed between the housing and the cover.

9. The assembly method according to claim 8, wherein in step S2, the assembly method includes the step of attaching the light-emitting part to the adapter circuit board, and before step S4, the assembly method includes the step of installing the light guide part to the cover hole of the cover, wherein the position of the light-emitting part and the position of the light guide part correspond in the height direction, and the light generated by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light guide part.

10. The assembly method according to claim 8, wherein in step S2, the assembly method includes attaching a light-emitting part to the adapter circuit board, and after step S4, the assembly method includes installing a light guide part to the cover hole of the cover, wherein the position of the light-emitting part and the position of the light guide part correspond in the height direction, and the light generated by the light-emitting part radiates to the outside of the underwater acoustic device after passing through the light guide part.

Images