Sonar and method of manufacturing the same

Abstract

The application discloses a sonar and a manufacturing method thereof, and relates to the technical field of underwater detection. The sonar comprises a transducer, a watertight terminal, an electronic part, a sacrificial anode and a shell part. The shell part comprises an electronic cabin and a top cover. The electronic cabin has a receiving cavity. An oxide film of a cabin body of the electronic cabin is provided with a bottom exposed area on an inner surface thereof. The top cover has an insertion part. An oxide film of a cover body of the top cover is provided with a lower exposed area and an upper exposed area on opposite sides thereof. The transducer, the watertight terminal, the electronic part and the sacrificial anode are respectively mounted on the top cover. The transducer and the watertight terminal are connected to the electronic part. The electronic part is conductively connected to the top cover through the lower exposed area. The sacrificial anode is conductively connected to the top cover through the upper exposed area. The insertion part is inserted into the receiving cavity through an opening of the electronic cabin. The electronic part is located in the receiving cavity and is conductively connected to the electronic cabin through the bottom exposed area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwater detection, in particular to a sonar and a manufacturing method thereof. BACKGROUND

[0002] In the Chinese patent application with the application publication number CN117930248A, the inventor discloses a sonar, the electronic cabin and the top cover of the shell part of which are fixedly installed by using an assembly part, and the material of the assembly part is nylon wire, which is insulating. Generally, the electronic cabin and the top cover are made of metal materials such as aluminum as a base material, and an oxidation layer is provided on the surface thereof to improve the corrosion resistance. The provision of the oxidation layer makes the electronic cabin and the top cover also insulating. In the case of selecting nylon wire as the assembly part to realize the fixed installation of the electronic cabin and the top cover, the electronic cabin and the top cover will not be conductive. In the sonar of the prior art, only the bottom of the electronic cabin is provided with a sacrificial anode, which means that the top cover is not cathodically protected, thereby causing the top cover to be prone to corrosion. On the basis of selecting nylon wire as the assembly part to realize the fixed installation of the electronic cabin and the top cover, how to effectively cathodically protect the sonar is one of the technical problems that the inventor of the present application is committed to solving.

[0003] In addition, in the sonar of the prior art, the circuit board of the electronic part is directly inserted into the clamping slot of the electronic cabin. When the electronic cabin is impacted and vibrates, the vibration will be almost losslessly conducted to the circuit board to cause synchronous vibration of the circuit board, thereby causing the circuit board to be prone to damage and affecting the reliability of the sonar. SUMMARY

[0004] One object of the present application is to provide a sonar and a manufacturing method thereof, wherein the electronic part of the sonar is conductive to the electronic cabin and the top cover of the shell part. In this way, the sonar can realize cathodic protection of the electronic cabin and the top cover by only providing a sacrificial anode on the top cover.

[0005] One object of the present application is to provide a sonar and a manufacturing method thereof, wherein the top of the electronic part is installed on the top cover, and the top cover suspends the electronic part in the accommodation cavity of the electronic cabin during the installation of the top cover on the electronic cabin, and the bottom of the electronic part is conductively connected to the electronic cabin through the bottom bare area of the electronic cabin, which is conducive to simplifying the assembly process of the sonar.

[0006] An object of the present application is to provide a sonar and a manufacturing method thereof, wherein the electronic part is provided with elastic supporting elements in at least three directions of a bracket assembly, the middle parts of the elastic supporting elements are convex to the electronic cabin, and the elastic supporting elements can provide buffering effect when the cover part is shaken due to impact, so as to reduce the influence of the shaking on the signal processing board installed on the bracket assembly, thereby improving the reliability and stability of the sonar.

[0007] According to an aspect of the present application, the present application provides a sonar, which comprises a transducer, a water-tight terminal, an electronic part, a sacrificial anode, an assembly part and a cover part, wherein the cover part comprises:

[0008] an electronic cabin with a receiving cavity and an electronic cabin groove around the opening of the electronic cabin on the inner surface of the electronic cabin, the inner and outer surfaces of the electronic cabin are provided with a cabin body oxide film, and the inner surface of the electronic cabin is provided with a bottom exposed area;

[0009] a top cover with an insertion part and a top cover groove around the insertion part, the surface of the top cover is provided with a cover body oxide film, the cover body oxide film is provided with a lower exposed area and an upper exposed area on the opposite sides of the top cover, wherein the transducer, the water-tight terminal, the electronic part and the sacrificial anode are respectively installed on the top cover, the transducer and the water-tight terminal are connected to the electronic part, the electronic part is conductively connected to the top cover through the lower exposed area, and the sacrificial anode is conductively connected to the top cover through the upper exposed area, wherein the insertion part of the top cover is inserted into the receiving cavity through the opening of the electronic cabin, the outer side of the assembly part is located in the electronic cabin groove of the electronic cabin, the inner side is located in the top cover groove of the top cover, the electronic part is located in the receiving cavity of the electronic cabin, and the electronic part is conductively connected to the electronic cabin through the bottom exposed area.

[0010] According to an embodiment of the present application, the electronic part comprises a bracket assembly, a signal processing board, a battery and an elastic conductive element, the signal processing board, the battery and the elastic conductive element are respectively installed on the bracket assembly, the battery is connected to the signal processing board, the top of the bracket assembly is locked on the top cover, the bracket assembly is conductively connected to the top cover through the lower exposed area, the elastic conductive element is located between the bottom of the bracket assembly and the bottom exposed area of the electronic cabin, and the bracket assembly and the electronic cabin are conductively connected by the elastic conductive element.

[0011] According to an embodiment of the present application, the elastic conductive element is conductive foam.

[0012] According to one embodiment of the present invention, the elastic conductive element is a metal sheet, one end of the elastic conductive element is locked to the bottom of the bracket assembly, and the middle part of the elastic conductive element protrudes towards the bottom of the electronic compartment.

[0013] According to one embodiment of the present invention, the electronic component includes an elastic support element, the support assembly having the elastic support element mounted in at least three directions, and the central portion of the elastic support element protruding towards and abutting against the electronic compartment.

[0014] According to one embodiment of the present invention, the extension direction of the elastic support element is consistent with the height direction of the electronic compartment.

[0015] According to one embodiment of the present invention, the elastic support element is a metal sheet, and at least one end of the elastic support element is locked to the bracket assembly.

[0016] According to one embodiment of the present invention, the sonar includes a buoyancy portion which is mounted on the bottom of the electronics compartment.

[0017] According to another aspect of the present invention, the present invention further provides a method for manufacturing sonar, wherein the manufacturing method includes the following steps:

[0018] Remove the oxide film from the bottom of the inner surface of the electronic compartment to form the bottom exposed area;

[0019] Remove portions of the oxide film from opposite sides of the surface of the top cover to form the lower exposed area and the upper exposed area, respectively;

[0020] The transducer, the watertight terminal, the electronic component, and the sacrificial anode are respectively installed on the top cover, wherein the transducer and the watertight terminal are respectively connected to the electronic component, the electronic component is conductively connected to the top cover through the lower exposed area, and the sacrificial anode is conductively connected to the top cover through the upper exposed area;

[0021] When the insertion portion of the top cover is inserted into the receiving cavity through the opening of the electronic compartment, the electronic components are allowed to be conductively connected to the electronic compartment through the bottom exposed area;

[0022] The mounting portion is installed in the electronics compartment recess of the electronics compartment and the top cover recess of the top cover, such that the outer side of the mounting portion is located in the electronics compartment recess of the electronics compartment and the inner side is located in the top cover recess of the top cover, in order to manufacture the sonar.

[0023] According to one embodiment of the present application, during the process of installing the assembly part into the electronic cabin recess of the electronic cabin and the top cover recess of the top cover, the top cover is pressed towards the electronic cabin, so that the height position of the electronic cabin recess of the electronic cabin and the height position of the top cover recess of the top cover correspond.

[0024] Compared with the prior art, the sonar of the present application has at least the following beneficial effects:

[0025] 1. The bottom exposed area of the bottom of the cabin body oxide film of the electronic cabin is arranged at the inner surface of the electronic cabin, and the lower exposed area of the bottom cover oxide film of the top cover is arranged at the lower side of the top cover. When the top of the electronic part is installed on the top cover, the electronic part is connected to the top cover through the lower exposed area, and when the top cover is installed on the electronic cabin, the bottom of the electronic part is connected to the electronic cabin through the bottom exposed area. In this way, the electronic part is connected to the electronic cabin and the top cover, and in this way, the sonar only needs to provide the sacrificial anode on the top cover to achieve the cathodic protection of the electronic cabin and the top cover.

[0026] 2. Since the top of the support assembly of the electronic part is locked to the top cover and the bottom of the support assembly is provided with the elastic connecting element, when the top cover is installed on the electronic cabin, the electronic part can be accommodated in the accommodation cavity of the electronic cabin, and the support assembly presses the elastic connecting element towards the bottom of the electronic cabin to achieve the connection between the electronic part and the electronic cabin. In this way, the assembly process of the sonar is simplified.

[0027] 3. At least three directions of the support assembly are provided with the elastic support elements, the middle parts of the elastic support elements are convex and abut against the electronic cabin. In this way, on the one hand, the electronic part can be reliably suspended in the accommodation cavity of the electronic cabin, and on the other hand, the elastic support elements can effectively provide a buffering effect, reduce the influence of the vibration of the cover part on the signal processing board, and improve the reliability and stability of the sonar.

[0028] 4. The sonar is provided with a light guide column on the top cover, the end surface of the light guide column is exposed, and the lower side of the light guide column is provided with a light emitting element. The light emitted by the light emitting element is conducted to the end surface by the light guide column for observation by the human eye. The color of the light emitted by the light emitting element is related to the power of the battery of the electronic part, so that the power of the battery can be easily known.

[0029] Other beneficial effects of the present application will be further described in the following description. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a perspective view of a sonar according to a preferred embodiment of the present application.

[0031] Figure 2 is a perspective view of the sonar according to the preferred embodiment of the present application.

[0032] Figure 3 is a cross-sectional view of a partial location of the sonar according to the preferred embodiment of the present application.

[0033] Figure 4 is a close-up view of a first location of Figure 3

[0034] Figure 5 is a close-up view of a second location of Figure 3

[0035] Figure 6 is a close-up view of a third location of Figure 3

[0036] Figure 7 is a cross-sectional view of another partial location of the sonar according to the preferred embodiment of the present application.

[0037] Figure 8 is a close-up view of a location of Figure 7

[0038] Figure 9 is an exploded view of the sonar according to the preferred embodiment of the present application.

[0039] Figure 10 is an exploded view of a partial location of the sonar according to the preferred embodiment of the present application.

[0040] Figure 11 is an exploded view of another partial location of the sonar according to the preferred embodiment of the present application.

[0041] Figure 12 is a perspective view of an electronic portion of the sonar according to the preferred embodiment of the present application.

[0042] Figure 13 is a perspective view of the electronic portion of the sonar according to the preferred embodiment of the present application.

[0043] Figure 14 is an exploded view of the electronic portion of the sonar according to the preferred embodiment of the present application. ​​​​

[0044] Figure 15 is an exploded view of another perspective of the electronics portion of the sonar according to the above-described preferred embodiment of the present invention.

[0045] Figure 16 is a perspective view of a partial location of the sonar according to the above-described preferred embodiment of the present invention.

[0046] Figure 17 is an exploded view of one perspective of the above-described partial location of the sonar according to the above-described preferred embodiment of the present invention.

[0047] Figure 18 is an exploded view of another perspective of the above-described partial location of the sonar according to the above-described preferred embodiment of the present invention.

[0048] Figure 19 is a perspective view of an electronics compartment of the sonar according to the above-described preferred embodiment of the present invention.

[0049] Figure 20 is a perspective view of one perspective of a top cover of the sonar according to the above-described preferred embodiment of the present invention.

[0050] Figure 21 is a perspective view of another perspective of the top cover of the sonar according to the above-described preferred embodiment of the present invention.

[0051] Figure 22 is a schematic view of one of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0052] Figure 23 is a schematic view of a second of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0053] Figure 24 is a schematic view of a third of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0054] Figure 25 is a schematic view of a fourth of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0055] Figure 26 is a schematic view of a fifth of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0056] Figure 27 is a schematic view of a sixth of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0057] Figure 28 is a schematic view of a seventh of the manufacturing processes of the sonar according to the above-described preferred embodiment of the present invention.

[0058] Figure 29 is a schematic diagram of step eight of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0059] Figure 30 is a schematic diagram of step nine of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0060] Figure 31 is a schematic diagram of step ten of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0061] Figure 32 is a schematic diagram of step eleven of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0062] Figure 33 is a schematic diagram of step twelve of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0063] Figure 34 is a schematic diagram of step thirteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0064] Figure 35 is a schematic diagram of step fourteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0065] Figure 36 is a schematic diagram of step fifteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0066] Figure 37 is a schematic diagram of step sixteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0067] Figure 38 is a schematic diagram of step seventeen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0068] Figure 39 is a schematic diagram of step eighteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0069] Figure 40 is a schematic diagram of step nineteen of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0070] Figure 41 is a schematic diagram of step twenty of the manufacturing process of the sonar according to the above-described preferred embodiment of the present invention.

[0071] Figure 42 is a schematic diagram of a partial view of a sonar according to another preferred embodiment of the present invention.

[0072] Figure 43is Figure 32 a magnified view of one position.

[0073] in the figure:

[0074] 10, cover part; 11, electronic compartment; 111, receiving cavity; 112, electronic compartment groove; 113, passage; 114, compartment body oxide film; 115, bottom exposed area; 12, top cover; 121, insertion part; 122, top cover groove; 123, cover body oxide film; 124, lower exposed area; 125, upper exposed area; 1201, wire through hole; 1202, sunken groove; 1203, terminal through hole; 1204, column hole; 12041, hole top; 12042, hole bottom; 1205, sensor mounting groove; 1206, sensor through hole; 1207, second clamping groove;

[0075] 20, assembly part;

[0076] 30, electronic part; 31, support assembly; 311, plate support; 3111, support top plate; 3112, assembly plate; 3113, abutting column; 312, battery support; 3121, support main plate; 3122, support bracket; 3123, support side wing; 3124, battery cavity; 313, battery pressing plate; 3131, pressing plate main plate; 3132, pressing plate side wing; 32, signal processing plate; 33, battery; 34, elastic conduction element; 35, elastic support element; 36, adapter circuit board; 37, support column;

[0077] 40, transducer; 41, transducer wire;

[0078] 50, sacrificial anode;

[0079] 60, watertight terminal; 61, terminal wire;

[0080] 70, power display part; 71, indicator light; 72, light guide column; 721, column top; 722, column bottom; 723, first clamping groove; 73, sealing ring; 74, first clamping spring;

[0081] 80, rubber ring;

[0082] 90, back buckle;

[0083] 100, screw rod;

[0084] 110, pressure sensor; 1101, sensor wire;

[0085] 120, second clamping spring;

[0086] 130, small cover; 1301, small cover through hole;

[0087] 200, nut;

[0088] 300. Wire. DETAILED DESCRIPTION

[0089] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The application is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising" or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0090] Also, in the disclosure of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship in the drawings in which the application is disclosed, and are for convenience only in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. In the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in an embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" should not be understood as limiting the number.

[0091] Reference will now be made to the drawings accompanying the specification, which describe the preferred embodiments of the present application, wherein Figures 1 to 41 A sonar according to a preferred embodiment of the present application will be disclosed and described in the following description with reference to the figures, wherein the sonar includes a housing portion 10, a mounting portion 20, an electronics portion 30, a transducer 40, a sacrificial anode 50, and at least one watertight terminal 60.

[0092] The cover part 10 comprises an electronic cabin 11 and a top cover 12, the electronic cabin 11 has a receiving cavity 111, the top cover 12 has an insertion part 121, the electronic part 30, the transducer 40, the sacrificial anode 50 and the watertight terminal 60 are respectively installed on the top cover 12, and the transducer 40 and the watertight terminal 60 are respectively connected to the electronic part 30, the insertion part 121 of the top cover 12 is inserted into the receiving cavity 111 through the opening of the electronic cabin 11, the assembly part 20 is used to realize the assembly of the electronic cabin 11 and the top cover 12, so that the top cover 12 reliably closes the opening of the electronic cabin 11, so that the receiving cavity 111 of the electronic cabin 11 forms a watertight environment, and the electronic part 30 is located in the receiving cavity 111 of the electronic cabin 11.

[0093] It can be understood that in the sonar of the present application, the top cover 12 is an assembly platform for assembling the electronic part 30, the transducer 40, the sacrificial anode 50 and the watertight terminal 60, and connecting the transducer 40 and the watertight terminal 60 to the electronic part 30 respectively.

[0094] Further, the electronic cabin 11 has an electronic cabin groove 112 which is arranged on the inner surface of the electronic cabin 11 and surrounds the opening of the electronic cabin 11, and correspondingly, the top cover 12 has a top cover groove 122 which surrounds the insertion part 121, wherein after the insertion part 121 of the top cover 12 is inserted into the receiving cavity 111 through the opening of the electronic cabin 11, the height position of the electronic cabin groove 112 of the electronic cabin 11 corresponds to the height position of the top cover groove 122 of the top cover 12, the outer side of the assembly part 20 is located in the electronic cabin groove 112 of the electronic cabin 11, and the inner side is located in the top cover groove 122 of the top cover 12, so that the assembly part 20 realizes the assembly of the electronic cabin 11 and the top cover 12, avoiding the movement of the top cover 12 relative to the electronic cabin 11 in the height direction.

[0095] Further, the electronic compartment 11 has a passage 113 extending from the outer wall of the electronic compartment 11 to the electronic compartment recess 112 at the opening of the electronic compartment 11, so as to connect the passage 113 and the electronic compartment recess 112. After the insertion part 121 of the top cover 12 is inserted into the receiving cavity 111 through the opening of the electronic compartment 11, the height position of the electronic compartment recess 112 of the electronic compartment 11 corresponds to the height position of the top cover recess 122 of the top cover 12. One end of a wire 300 with strong shearing resistance, such as nylon wire, can pass through the passage 113 of the electronic compartment 11 into the electronic compartment recess 112 of the electronic compartment 11 and the top cover recess 122 of the top cover 12 to form the assembly part 20. At this time, the outer side of the assembly part 20 is located in the electronic compartment recess 112 of the electronic compartment 11, and the inner side is located in the top cover recess 122 of the top cover 12. In this way, the assembly part 20 can reliably assemble the electronic compartment 11 and the top cover 12 in an internal fixation scheme to prevent the top cover 12 from moving relative to the electronic compartment 11 in the height direction.

[0096] Unlike the sonar of the prior art, in the sonar of the present application Figures 1 to 41 In this specific example of the sonar of the present application, on the one hand, the electronic part 30 is mounted on the top cover 12. When the top cover 12 is mounted on the electronic compartment 11, the top cover 12 suspends the electronic part 30 in the receiving cavity 111 of the electronic compartment 11, so as to facilitate the assembly process of the sonar. On the other hand, the electronic part 30 connects the electronic compartment 11 and the top cover 12, so that the sonar can realize the cathodic protection of the electronic compartment 11 and the top cover 12 by arranging the sacrificial anode 50 on the top cover 12.

[0097] Specifically, referring to the drawings Figure 19 The inner and outer surfaces of the electronic compartment 11 are provided with a compartment oxidation film 114 to improve the oxidation resistance of the electronic compartment 11. The compartment oxidation film 114 is provided with a bottom exposed area 115 at the bottom of the inner surface of the electronic compartment 11 to expose the substrate of the electronic compartment 11. In a specific example of the sonar of the present application, the substrate of the electronic compartment 11 can be aluminum material. The compartment oxidation film 114 is formed by spraying a corrosion-resistant coating on the surface of the substrate. Then, the compartment oxidation film 114 at the bottom of the inner surface of the electronic compartment 11 can be removed by laser process to form the bottom exposed area 115 of the electronic compartment 11. At this time, the substrate of the electronic compartment 11 is exposed in the receiving cavity 111.

[0098] Correspondingly, referring to the drawingsFigure 20 and Figure 21 The surface of the top cover 12 is provided with a cover oxide film 123, and the cover oxide film 123 is provided with a lower exposed area 124 and an upper exposed area 125 on opposite sides of the top cover 12 for exposing the substrate of the top cover 12. In a specific example of the sonar of the present application, the substrate of the top cover 12 can be aluminum material, and the cover oxide film 123 is formed by spraying a corrosion-resistant coating on the surface of the substrate. Then, a portion of the cover oxide film 123 on the lower side of the top cover 12 can be removed by a laser process to form the lower exposed area 124 of the top cover 12, and a portion of the cover oxide film 123 on the upper side of the top cover 12 can be removed to form the upper exposed area 125 of the top cover 12, so that the substrate of the top cover 12 is exposed.

[0099] The electronic part 30 is mounted on the top cover 12, and the electronic part 30 is conductively connected to the top cover 12 through the lower exposed area 124. The sacrificial anode 50 is mounted on the top cover 12, and the sacrificial anode 50 is conductively connected to the top cover 12 through the upper exposed area 125. Preferably, the lower exposed area 124 of the top cover 12 is formed at a position of the top cover 12 for mounting the electronic part 30, so that when the electronic part 30 is mounted on the top cover 12, the electronic part 30 automatically conducts the top cover 12. The upper exposed area 125 of the top cover 12 is formed at a position of the top cover 12 for mounting the sacrificial anode 50, so that when the sacrificial anode 50 is mounted on the top cover 12, the sacrificial anode 50 automatically conducts the top cover 12.

[0100] It can be understood that the upper side of the top cover 12 is exposed outside the sonar, and therefore in order to ensure the corrosion resistance of the top cover 12, after the sacrificial anode 50 is mounted on the top cover 12, the sacrificial anode 50 needs to cover the upper exposed area 125 of the cover oxide film 123 of the top cover 12. In other words, the sonar prevents seawater from contacting the upper exposed area 125 of the cover oxide film 123 of the top cover 12. The bottom of the electronic part 30 is conductively connected to the electronic cabin 11 through the bottom exposed area 115.

[0101] That is, the top of the electronic part 30 is conductively connected to the top cover 12 through the lower exposed area 124, and the bottom of the electronic part 30 is conductively connected to the electronic compartment 11 through the bottom exposed area 115, that is, the electronic part 30 conducts the electronic compartment 11 and the top cover 12, in this way, the sonar only needs to set the sacrificial anode 50 on the top cover 12 to realize the cathodic protection of the electronic compartment 11 and the top cover 12.

[0102] Reference is made to the accompanying drawings Figures 9 to 15 The electronic part 30 comprises a bracket assembly 31, at least one signal processing board 32, a battery 33 and a flexible conductive element 34, the signal processing board 32, the battery 33 and the flexible conductive element 34 are respectively mounted on the bracket assembly 31, the battery 33 is connected to the signal processing board 32 for providing power for the signal processing board 32, the top of the bracket assembly 31 is conductively connected to the top cover 12 through the lower exposed area 124, the flexible conductive element 34 is located between the bottom of the bracket assembly 31 and the bottom exposed area 115 of the electronic compartment 11, and the bracket assembly 31 and the electronic compartment 11 are conducted by the flexible conductive element 34, in this way, the top of the electronic part 30 is conductively connected to the top cover 12 through the lower exposed area 124, and the bottom is conductively connected to the electronic compartment 11 through the bottom exposed area 115, so that the electronic compartment 11 and the top cover 12 are conducted by the electronic part 30, so as to realize the cathodic protection of the electronic compartment 11 and the top cover 12.

[0103] Preferably, the flexible conductive element 34 is pressed by the bracket assembly 31 towards the bottom of the electronic compartment 11, so that the flexible conductive element 34 is in a compressed state, and thus the flexible conductive element 34 can be tightly attached to the bottom exposed area 115 of the electronic compartment 11, so as to realize the stable conduction of the electronic part 30 and the electronic compartment 11.

[0104] In the accompanying drawings Figures 1 to 41In the shown specific example of the sonar of the present application, the elastic conducting element 34 is a metal sheet, such as but not limited to a copper sheet, one end of which is locked to the bottom of the bracket assembly 31, for example, a screw 100 can be used to lock the end of the elastic conducting element 34 to the bottom of the bracket assembly 31, the middle part of the elastic conducting element 34 protrudes towards the bottom of the electronic compartment 11, so that the middle part of the elastic conducting element 34 abuts against the exposed area 115 of the bottom of the electronic compartment 11, so that the elastic conducting element 34 not only realizes stable conduction between the electronic part 30 and the electronic compartment 11, but also supports the bracket assembly 31 upwards, providing a buffering effect for the bracket assembly 31, the signal processing board 32 and the battery 33 mounted on the bracket assembly 31, reducing the influence of the vibration of the cover part 10 on the signal processing board 32, thereby improving the reliability and stability of the sonar.

[0105] Optionally, in the attached Figure 42 and Figure 43 In another specific example of the sonar of the present application shown, the elastic conducting element 34 can be conductive foam, which is different from the attached Figures 1 to 41 In the shown sonar, the attached Figure 42 and Figure 43 The contact area between the elastic conducting element 34 and the exposed area 115 of the bottom of the electronic compartment 11 of the shown sonar is larger. Preferably, the elastic conducting element 34 is adhered to the bottom of the bracket assembly 31 by conductive glue.

[0106] Continuing to refer to the attached Figures 9 to 15 The electronic part 30 includes a plurality of elastic supporting elements 35, at least three directions of the bracket assembly 31 are provided with the elastic supporting elements 35, the middle part of the elastic supporting elements 35 protrudes towards and abuts against the electronic compartment 11, in this way, on the one hand, the electronic part 30 can be reliably suspended in the accommodation cavity 111 of the electronic compartment 11, on the other hand, these elastic supporting elements 35 can effectively provide a buffering effect, reducing the influence of the vibration of the cover part 10 on the signal processing board 32, thereby improving the reliability and stability of the sonar. Preferably, the extension direction of the elastic supporting elements 35 is consistent with the height direction of the electronic compartment 11, so as to facilitate the assembly of the sonar.

[0107] In the attached Figures 1 to 41In the specific example of the sonar of the present application shown, the elastic supporting elements 35 are metal sheets, at least one end of each of the elastic supporting elements 35 is locked to the bracket assembly 31 to mount the elastic supporting elements 35 to the bracket assembly 31, for example, the screw rods 100 can be used to lock the ends of the elastic supporting elements 35 to the bracket assembly 31. Preferably, both ends of each of the elastic supporting elements 35 are locked to the bracket assembly 31, in this way, during the assembly of the sonar, the electronic cabin 11 can press the middle part of the elastic supporting elements 35 to the bracket assembly 31 to deform the middle part of the elastic supporting elements 35 to accumulate elastic potential energy, which makes the middle part of the elastic supporting elements 35 tightly fit to the inner wall of the electronic cabin 11, so that the electronic part 30 can be stably accommodated in the accommodation cavity 111 of the electronic cabin 11.

[0108] Reference is made to the accompanying drawings Figures 9 to 15 The bracket assembly 31 includes a plate bracket 311, the plate bracket 311 includes a bracket top plate 3111 and an assembly plate 3112 integrally extended downward from the middle part of the bracket top plate 3111, the signal processing plate 32 is locked to the assembly plate 3112 of the plate bracket 311, and the signal processing plate 32 and the assembly plate 3112 are in a laminated structure, for example, the screw rods 100 can be used to lock the signal processing plate 32 to the assembly plate 3112. Preferably, the number of the signal processing plates 32 is two, one of the signal processing plates 32 is locked to one side of the assembly plate 3112, and the other of the signal processing plates 32 is locked to the other side of the assembly plate 3112. In the accompanying drawings Figures 1 to 41 In the specific example of the sonar of the present application shown, the material of the plate bracket 311 can be aluminum material, in this way, the plate bracket 311 not only makes the electronic part 30 conductive to the electronic cabin 11 and the top cover 12, but also can conduct the heat generated by the signal processing plate 32 to the top cover 12 to achieve rapid heat dissipation.

[0109] In the accompanying drawings Figures 1 to 41 In the specific example of the sonar of the present application shown, the screw rods 100 are used to lock the bracket top plate 3111 to the top cover 12, and the bracket top plate 3111 contacts the lower exposed area 124 of the top cover 12, so that the plate bracket 311 is conductively connected to the top cover 12.

[0110] The bracket assembly 31 further comprises a battery bracket 312 and a battery pressing plate 313. The battery bracket 312 comprises a bracket main plate 3121, a bracket supporting plate 3122 extended from the bottom of the bracket main plate 3121, and two bracket side wings 3123 extended from the opposite sides of the bracket supporting plate 3122. The battery bracket 312 forms a battery cavity 3124 between the bracket main plate 3121, the bracket supporting plate 3122, and the two bracket side wings 3123. The battery pressing plate 313 comprises a pressing plate main plate 3131 and two pressing plate side wings 3132 extended from the opposite sides of the pressing plate main plate 3131. The battery 33 is installed in the battery cavity 3124 of the battery bracket 312, with the back of the battery 33 against the bracket main plate 3121, the bottom of the battery 33 supported by the bracket supporting plate 3122, the opposite sides of the battery 33 against the two bracket side wings 3123, and the two pressing plate side wings 3132 of the battery pressing plate 313 locked with the two bracket side wings 3123 of the battery bracket 312, for example, by the screw rod 100 and the screw cap 200. The pressing plate main plate 3131 presses the front of the battery 33. In the attached drawings, the bracket main plate 3121, the bracket supporting plate 3122, the two bracket side wings 3123, the pressing plate main plate 3131, and the two pressing plate side wings 3132 are shown in black. Figures 1 to 41 In this specific example of the sonar of the present application, the battery bracket 312 and the battery pressing plate 313 are sheet metal parts, for example, stainless steel plates that are formed by a bending process. In this way, the battery bracket 312 allows the electronic part 30 to be connected to the electronic compartment 11 and the top cover 12.

[0111] One of the elastic connecting elements 34 is locked with the bracket supporting plate 3122 of the battery bracket 312 by the screw rod 100, with the middle part of the elastic connecting element 34 protruding away from the side of the bracket supporting plate 3122. After the electronic part 30 is received in the receiving cavity 111 of the electronic compartment 11, the middle part of the elastic connecting element 34 is against the bottom of the electronic compartment 11, and the elastic connecting element 34 is connected to the electronic compartment 11 through the exposed area 115 of the bottom of the electronic compartment 11.

[0112] Two of the elastic supporting elements 35 are respectively locked by the screw rod 100 on the main plate 3121 of the battery holder 312, and the middle part of each of the two elastic supporting elements 35 protrudes away from the side of the main plate 3121, one of the elastic supporting elements 35 is locked by the screw rod 100 on one of the side wings 3123 of the battery holder 312, and the middle part of the elastic supporting element 35 protrudes away from the side of the side wing 3123, the other of the elastic supporting elements 35 is locked by the screw rod 100 on the other of the side wings 3123 of the battery holder 312, and the middle part of the elastic supporting element 35 protrudes away from the side of the side wing 3123, after the electronic part 30 is accommodated in the accommodation cavity 111 of the electronic compartment 11, the middle part of each of the elastic supporting elements 35 respectively abuts against different positions of the inner wall of the electronic compartment 11, so as to suspend the electronic part 30 in the accommodation cavity 111 of the electronic compartment 11.

[0113] The two side wings 3123 of the battery holder 312 are respectively mounted on the opposite sides of the assembly plate 3112 of the plate holder 311, and the top of the battery 33 abuts against the top plate 3111, in this way, the holder assembly 31, the signal processing plate 32, the battery 33, the elastic conducting element 34 and the elastic supporting element 35 constitute an integral component, which is convenient for the assembly of the sonar, on the other hand, each direction of the battery 33 is limited, so as to avoid the shaking of the battery 33.

[0114] Preferably, the plate holder 311 further comprises a pair of abutting columns 3113, which extend from the side of the assembly plate 3112 to the main plate 3131 of the battery pressing plate 313, so that the electronic part 30 constitutes a stable integral component.

[0115] Reference is made to the accompanying drawings Figures 10 to 15 The electronic part 30 comprises an adapter circuit board 36, which is arranged on the top of the plate holder 311, the signal processing plate 32 is connected to the adapter circuit board 36, and the transducer 40 and the watertight terminal 60 are respectively connected to the adapter circuit board 36, so that the adapter circuit board 36 allows the transducer 40 and the watertight terminal 60 to be connected to the signal processing plate 32.

[0116] Preferably, the electronic part 30 comprises a set of support columns 37, the bottom of which abuts against the support top plate 3111 of the plate support 311, and the top of which abuts against the adapter circuit board 36, one end of the screw rod 100 being screwed into the support top plate 3111 after passing through the through hole of the adapter circuit board 36 and the through hole of the support column 37, so as to set the adapter circuit board 36 on the plate support 311.

[0117] Referring to the drawings Figures 3 to 11 , Figures 16 to 18 , Figure 20 , the top cover 12 has a wire through hole 1201, and the transducer 40 has a transducer wire 41, after the end of the transducer wire 41 of the transducer 40 passes through the wire through hole 1201 of the top cover 12 from top to bottom, the screw rod 100 is used to lock the transducer 40 to the top cover 12, so that the transducer 40 is mounted on the top cover 12, wherein the end of the transducer wire 41 extending below the top cover 12 can be connected to the adapter circuit board 36.

[0118] The top cover 12 has a sunken groove 1202, and the upper exposed area 125 is formed on the bottom surface of the top cover 12 for defining the sunken groove 1202, the inner diameter of the sunken groove 1202 is consistent with the outer diameter of the sacrificial anode 50, after the sacrificial anode 50 is mounted on the sunken groove 1202 of the top cover 12, the screw rod 100 is used to lock the sacrificial anode 50 to the top cover 12, so that the sacrificial anode 50 is kept in the position sunken into the sunken groove 1202 of the top cover 12, and the sacrificial anode 50 is conductively connected to the top cover 12 through the upper exposed area 125.

[0119] The top cover 12 has at least one terminal through hole 1203, after one end of the water-tight terminal 60 and the terminal wire 61 pass through the terminal through hole 1203 of the top cover 12, the end of the water-tight terminal 60 is screwed with the nut 200, for mounting the water-tight terminal 60 on the top cover 12, wherein the terminal wire 61 of the water-tight terminal 60 can be connected to the adapter circuit board 36. It is worth mentioning that the number of the water-tight terminal 60 is not limited in the sonar of the present application, for example, in the specific example of the sonar of the present application shown in the drawings, the number of the water-tight terminal 60 is two. Figures 1 to 41

[0120] Referring to the drawings Figure 3 and Figure 5 ​The sonar further comprises an electric quantity display part 70 for displaying the electric quantity of the battery 33. Specifically, the electric quantity display part 70 comprises an indicator lamp 71 and a light guide column 72. The indicator lamp 71 is attached to the adapter circuit board 36 and displays the electric quantity of the battery 33 by displaying light of different colors. The top cover 12 has a column hole 1204 extending through opposite sides of the top cover 12. The light guide column 72 is installed in the column hole 1204 of the top cover 12 and is located above the indicator lamp 71. Thus, the light generated by the indicator lamp 71 can be conducted to the end face by the light guide column 72 for observation by the human eye, so that the electric quantity of the battery 33 can be easily known.

[0121] With reference to the accompanying drawings Figure 5 The column hole 1204 of the top cover 12 has a hole top portion 12041 extending downward from the upper surface of the top cover 12 and a hole bottom portion 12042 extending from the hole top portion 12041 to the lower surface of the top cover 12. The inner diameter of the hole top portion 12041 is larger than that of the hole bottom portion 12042. The light guide column 72 has a column top portion 721 extending downward from the bottom of the column top portion 721, a column bottom portion 722 and a first clamping groove 723 provided at the bottom of the column bottom portion 722. The outer diameter of the column top portion 721 matches the inner diameter of the hole top portion 12041 of the top cover 12, and the outer diameter of the column bottom portion 722 matches the inner diameter of the hole bottom portion 12042 of the top cover 12. The electric quantity display part 70 comprises a sealing ring 73 and a first clamping spring 74. After the light guide column 72 is installed in the column hole 1204 of the top cover 12, the column top portion 721 of the light guide column 72 is located in the hole top portion 12041 of the top cover 12, and the column bottom portion 722 of the light guide column 72 is located in the hole bottom portion 12042 of the top cover 12. The sealing ring 73 is clamped between the column top portion 721 of the light guide column 72 and the top cover 12. The inner side of the first clamping spring 74 is clamped in the first clamping groove 723 of the light guide column 72, and the outer side of the first clamping spring 74 abuts against the lower surface of the top cover 12. Thus, the light guide column 72 is water-tightly installed in the top cover 12.

[0122] With reference to the accompanying drawings Figure 7The sonar further comprises a rubber ring 80, which is sleeved on the insertion part 121 of the top cover 12 and is clamped between the insertion part 121 of the top cover 12 and the electronic cabin 11, for preventing water from entering the combined position of the top cover 12 and the electronic cabin 11.

[0123] Referring to the accompanying drawings Figure 2 and Figure 9 The sonar further comprises a back buckle 90, the top of which is installed on the top cover 12 and the bottom of which extends to the side of the electronic cabin 11, so that a user can fix the sonar through the back buckle 90, for example, fix the sonar on a waistband through the back buckle 90.

[0124] Further, the sonar comprises a pressure sensor 110, which is installed on the top cover 12 and is connected to the adapter circuit board 36, wherein the pressure sensor 110 is used to provide data of the depth position of the sonar.

[0125] In particular, referring to the accompanying drawings Figure 3 、 Figure 4 and Figure 11 The top cover 12 has a sensor installation groove 1205, a sensor through hole 1206 extending downward from the sensor installation groove 1205, and a second clamping groove 1207 provided on the surface of the top cover 12 for forming the sensor installation groove 1205, the inner diameter of the sensor through hole 1206 is smaller than the inner diameter of the sensor installation groove 1205, the inner diameter of the sensor installation groove 1205 matches the outer diameter of the pressure sensor 110, wherein the pressure sensor 110 is installed in the sensor installation groove 1205 of the top cover 12, the sensor lead wire 1101 of the pressure sensor 110 is connected to the adapter circuit board 36 after passing through the sensor through hole 1206, and the top surface of the pressure sensor 110 is located at the lower edge of the second clamping groove 1207 of the top cover 12, wherein the sonar further comprises a second clamping spring 120, the outer side of which is clamped into the second clamping groove 1207 of the top cover 12, and the inner side of which is located above the pressure sensor 110, so that the second clamping spring 120 is used to reliably install the pressure sensor 110 in the sensor installation groove 1205 of the top cover 12.

[0126] Further, the sonar comprises a small cover 130, the small cover 130 has a plurality of small cover perforations 1301, the small cover 130 is installed on the top cover 12 in a way that the small cover 130 encloses the slot of the sensor mounting groove 1205 of the top cover 12, and the small cover perforations 1301 of the small cover 130 are communicated with the sensor mounting groove 1205 of the top cover 12, to allow the water well small cover 130 small cover perforations 1301 into the sensor mounting groove 1205 of the top cover 12.

[0127] attached Figures 22 to 41 The assembly process of the sonar is shown as follows.

[0128] attached Figures 22 to 25 First, the battery 33 is installed in the battery cavity 3124 of the battery support 312, wherein the inside of the battery 33 abuts against the support main plate 3121, the bottom of the battery 33 is supported by the support back plate 3122, and the opposite sides of the battery 33 abut against the two support side wings 3123 respectively. Second, after the front part of the battery 33 is pressed by the pressing plate main plate 3131 of the battery pressing plate 313, the pressing plate side wings 3132 of the battery pressing plate 313 and the support side wings 3123 of the battery support 312 are installed using the screw rod 100 and the screw nut 200. Third, the elastic conducting element 34 is locked on the support back plate 3122 of the battery support 312 by the screw rod 100, and the elastic conducting element 34 and the battery support 312 are conductively connected. Fourth, two elastic support elements 35 are locked on the support main plate 3121 of the battery support 312 by the screw rod 100, one elastic support element 35 is locked on one support side wing 3123 of the battery support 312 by the screw rod 100, and another elastic support element 35 is locked on the other support side wing 3123 of the battery support 312 by the screw rod 100. Through the above steps, the battery unit of the electronic part 30 is assembled.

[0129] attached Figures 26 to 29First, one of the signal processing boards 32 is locked to one side of the assembly plate 3112 of the plate support 311 by the screw 100. Second, another of the signal processing boards 32 is locked to the other side of the assembly plate 3112 of the plate support 311 by the screw 100. Third, the adapter circuit board 36 and the support column 37 are locked to the support top plate 3111 of the plate support 311 by the screw 100, in which the bottom of the support column 37 is abutted to the support top plate 3111 of the plate support 311 and the top of the support column 37 is abutted to the adapter circuit board 36. Fourth, the signal processing board 32 and the adapter circuit board 36 are connected. By the above steps, the plate unit of the electronic part 30 is assembled.

[0130] Referring to the attached drawings Figure 30 and Figure 31 The two support side wings 3123 of the battery support 312 are respectively installed to the opposite sides of the assembly plate 3112 of the plate support 311 by the screw 100 and the nut 200, and the top of the battery 33 is abutted to the support top plate 3111, and the pair of abutment columns 3113 of the plate support 311 are respectively abutted to the opposite sides of the pressure plate main plate 3131 of the pressure plate 313, so that the electronic part 30 is stable.

[0131] Referring to the attached drawings Figure 32 and Figure 33 The transducer 40, the sacrificial anode 50, the watertight terminal 60, the light guide column 72, the pressure sensor 110, the second snap spring 120 and the small cover 130 are respectively installed to the top cover 12.

[0132] Referring to the attached drawings Figure 34 and Figure 35 After the end of the transducer lead wire 41 of the transducer 40, the end of the terminal lead wire 61 of the watertight terminal 60 and the sensor lead wire 1101 of the pressure sensor 110 are connected to the adapter circuit board 36, the support top plate 3111 of the plate support 311 is locked to the top cover 12 by the screw 100 to install the electronic part 30 to the top cover 12, at this time the support top plate 3111 of the plate support 311 is conductively connected to the top cover 12.

[0133] Referring to the attached drawings Figures 36 to 38After the rubber ring 80 is fitted to the insertion portion 121 of the top cover 12, the insertion portion 121 of the top cover 12 is inserted into the accommodating cavity 111 of the electronic compartment 11, at this time, the electronic part 30 is accommodated in the accommodating cavity 111 of the electronic compartment 11, the elastic conducting element 34 of the electronic part 30 contacts the bottom exposed area 115 of the electronic compartment 11, and the rubber ring 80 is located between the electronic compartment 11 and the top cover 12.

[0134] Referring to the accompanying drawings Figure 39 and Figure 40 , the top cover 12 is pressed towards the electronic compartment 11, so that the elastic conducting element 34 is deformed to ensure that the elastic conducting element 34 reliably conducts the electronic compartment 11 through the bottom exposed area 115, and the height position of the electronic compartment groove 112 of the electronic compartment 11 and the height position of the top cover groove 122 of the top cover 12 correspond. Then, one end of the wire 300 with strong shear resistance such as nylon wire can be inserted into the electronic compartment groove 112 of the electronic compartment 11 and the top cover groove 122 of the top cover 12 through the passage 113 of the electronic compartment 11, for forming the assembly part 20, so that the assembly part 20 can reliably assemble the electronic compartment 11 and the top cover 12 in an internal fixation scheme, to prevent the top cover 12 from moving relative to the electronic compartment 11 in the height direction.

[0135] Referring to the accompanying drawings Figure 41 , the back buckle 90 is installed on the top cover 12 by the screw rod 100, to complete the assembly of the sonar, wherein the back buckle 90 blocks the passage 113 of the electronic compartment 11, so that the passage 113 of the electronic compartment 11 is not visually visible.

[0136] According to another aspect of the present application, the present application further provides a manufacturing method of the sonar, wherein the manufacturing method comprises the following steps:

[0137] Removing the compartment oxide film 114 of the bottom of the inner surface of the electronic compartment 11 to form the bottom exposed area 115;

[0138] Removing part of the cover oxide film 123 on the opposite sides of the surface of the top cover 12 to form the lower exposed area 124 and the upper exposed area 125, respectively;

[0139] mounting the transducer 40, the watertight terminal 60, the electronic part 30 and the sacrificial anode 50 to the top cover 12, wherein the transducer 40 and the watertight terminal 60 are connected to the electronic part 30, the electronic part 30 is conductively connected to the top cover 12 through the lower exposed area 124, and the sacrificial anode 50 is conductively connected to the top cover 12 through the upper exposed area 125;

[0140] when the insertion part 121 of the top cover 12 is inserted into the receiving cavity 111 through the opening of the electronic cabin 11, the electronic part 30 is allowed to be conductively connected to the electronic cabin 11 through the bottom exposed area 115;

[0141] mounting the assembly part 20 to the electronic cabin recess 112 of the electronic cabin 11 and the top cover recess 122 of the top cover 12, so that the outer side of the assembly part 20 is located in the electronic cabin recess 112 of the electronic cabin 11 and the inner side is located in the top cover recess 122 of the top cover 12, to manufacture the sonar.

[0142] Preferably, during the process of mounting the assembly part 20 to the electronic cabin recess 112 of the electronic cabin 11 and the top cover recess 122 of the top cover 12, the top cover 12 is pressed towards the electronic cabin 11, so that the height position of the electronic cabin recess 112 of the electronic cabin 11 and the height position of the top cover recess 122 of the top cover 12 correspond.

[0143] It should be understood by those skilled in the art that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application has been shown and explained in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principle.

Claims

1. Sonar, characterized in that The sonar includes a transducer, a watertight terminal, an electronic part, a sacrificial anode, an assembly part, and a housing part including: an electronic chamber having a receiving cavity and an electronic chamber groove surrounding an opening of the electronic chamber on an inner surface of the electronic chamber, the inner and outer surfaces of the electronic chamber being provided with a chamber oxide film, the chamber oxide film being provided with a bottom exposed area on the inner surface of the electronic chamber; a top cover having an insertion portion and a top cover groove surrounding the insertion portion, a surface of the top cover being provided with a cover oxide film, the cover oxide film being provided with a lower exposed area and an upper exposed area on opposite sides of the top cover, wherein the transducer, the watertight terminal, the electronic part, and the sacrificial anode are respectively mounted on the top cover, the transducer and the watertight terminal are connected to the electronic part, the electronic part is conductively connected to the top cover through the lower exposed area, and the sacrificial anode is conductively connected to the top cover through the upper exposed area, wherein the insertion portion of the top cover is inserted into the receiving cavity through the opening of the electronic chamber, an outer side of the assembly part is located in the electronic chamber groove of the electronic chamber, an inner side of the assembly part is located in the top cover groove of the top cover, the electronic part is located in the receiving cavity of the electronic chamber, and the electronic part is conductively connected to the electronic chamber through the bottom exposed area.

2. The sonar of claim 1, wherein, The electronic part includes a bracket assembly, a signal processing board, a battery, and a flexible conductive element, the signal processing board, the battery, and the flexible conductive element are respectively mounted on the bracket assembly, the battery is connected to the signal processing board, a top portion of the bracket assembly is locked on the top cover, and the bracket assembly is conductively connected to the top cover through the lower exposed area, the flexible conductive element is located between a bottom portion of the bracket assembly and the bottom exposed area of the electronic chamber, and the bracket assembly and the electronic chamber are conducted by the flexible conductive element.

3. The sonar of claim 2, wherein, The flexible conductive element is conductive foam.

4. The sonar of claim 2, wherein, The flexible conductive element is a metal sheet, one end portion of the flexible conductive element is locked on the bottom portion of the bracket assembly, and a middle portion of the flexible conductive element protrudes towards the bottom portion of the electronic chamber.

5. The sonar of any one of claims 2 to 4, wherein, The electronic part includes a flexible support element, at least three directions of the bracket assembly are mounted with the flexible support element, and a middle portion of the flexible support element protrudes towards and abuts against the electronic chamber.

6. The sonar of claim 5, wherein, An extension direction of the flexible support element is consistent with a height direction of the electronic chamber.

7. The sonar of claim 6, wherein, The flexible support element is a metal sheet, and at least one end portion of the flexible support element is locked on the bracket assembly.

8. The sonar of any one of claims 1 to 4, wherein, The sonar includes a buoyancy part mounted on a bottom portion of the electronic chamber.

9. A method of manufacturing a sonar, characterized by, The manufacturing method is used for manufacturing the sonar of claim 1, and includes the following steps: removing the chamber oxide film on a bottom portion of an inner surface of the electronic chamber to form the bottom exposed area; removing part areas of the cover oxide film on opposite sides of a surface of the top cover to respectively form the lower exposed area and the upper exposed area; and mounting the transducer, the watertight terminal, the electronic part and the sacrificial anode to the top cover respectively, wherein the transducer and the watertight terminal are connected to the electronic part respectively, the electronic part is conductively connected to the top cover through the lower exposed area, and the sacrificial anode is conductively connected to the top cover through the upper exposed area; allowing the electronic part to be conductively connected to the electronic chamber through the bottom exposed area when the insertion part of the top cover is inserted into the accommodating cavity through the opening of the electronic chamber; mounting the assembly part to the electronic chamber groove of the electronic chamber and the top cover groove of the top cover, so that the outer side of the assembly part is located in the electronic chamber groove of the electronic chamber and the inner side is located in the top cover groove of the top cover, to manufacture the sonar.

10. The manufacturing method according to claim 9, wherein During the process of mounting the assembly part to the electronic chamber groove of the electronic chamber and the top cover groove of the top cover, the top cover is pressed towards the electronic chamber, so that the height position of the electronic chamber groove of the electronic chamber corresponds to the height position of the top cover groove of the top cover.

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