Transmit array detachable sonar

Abstract

The application discloses a detachable sonar of transmitting array, which comprises a watertight cabin, watertight terminals, a circuit board unit and a transmitting-receiving array unit, the watertight terminals are watertightly installed in the watertight cabin, the circuit board unit is accommodated in the accommodating cavity of the watertight cabin, and the circuit board unit is connected to the watertight terminals, wherein the transmitting-receiving array unit comprises a fixed cover, a vulcanization part, a receiving array and a transmitting array, the fixed cover has a first cover body perforation, the receiving array has a preamplifier board, the top of the preamplifier board extends to the top of the fixed cover through the first cover body perforation of the fixed cover, the vulcanization part is integrally vulcanized on the top of the fixed cover, and the vulcanization part wraps the top of the preamplifier board, and the transmitting array is installed on the fixed cover, wherein the fixed cover is installed on the watertight cabin in a manner of closing the cavity opening of the accommodating cavity of the watertight cabin, and the preamplifier board of the receiving array and the transmitting array are respectively connected to the circuit board unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwater detection, and in particular, to a detachable sonar with a transmitting array. BACKGROUND

[0002] The transmitting array and the receiving array are core components of the sonar, wherein the transmitting array can convert an electrical signal into an acoustic signal and emit it into water, and the receiving array can receive an acoustic signal propagating in water and convert it into an electrical signal. In the prior art sonar, for example, in the Chinese patent application for invention with the application publication number CN117930248A, the transmitting array and the receiving array of the top cover of the sonar are wrapped by the vulcanized rubber layer of the fixed cover, which results in that the transmitting array and the receiving array are not detachable. The problem of the prior art sonar is that when any one of the transmitting array and the receiving array is damaged, the entire top cover needs to be replaced, which results in that the maintenance cost of the sonar is extremely high and waste is easily caused. SUMMARY

[0003] An object of the present application is to provide a detachable sonar with a transmitting array, wherein the receiving array of the sonar is wrapped by the vulcanized part of the fixed cover, and the transmitting array of the sonar is installed on the fixed cover, so that only the damaged array needs to be repaired or replaced when one of the receiving array and the transmitting array is damaged, which can avoid waste and reduce the maintenance cost of the sonar.

[0004] An object of the present application is to provide a detachable sonar with a transmitting array, wherein the opposite sides of the mounting groove of the fixed cover are respectively provided with an inclined surface, and the inclined surface of the fixed cover can avoid the generation of micro-bubbles on the opposite sides of the transmitting array when the sonar moves in water, so as to ensure that the acoustic signal emitted by the transmitting array only passes through one medium and improve the detection accuracy of the sonar, and on the other hand, the transmitting array has a larger transmitting field angle, so as to avoid interference.

[0005] According to an aspect of the present application, a detachable sonar with a transmitting array is provided, which comprises:

[0006] A watertight cabin, wherein the watertight cabin has a receiving cavity;

[0007] A watertight terminal, wherein the watertight terminal is watertightly installed on the watertight cabin;

[0008] A circuit board unit, wherein the circuit board unit is received in the receiving cavity of the watertight cabin, and the circuit board unit is connected to the watertight terminal; and

[0009] A transceiving array unit, wherein the transceiving array unit comprises a fixed cover, a vulcanization part, a receiving array, and a transmitting array, the fixed cover has a first cover body perforation, the receiving array has a preamplifier board, a top portion of the preamplifier board extends above the fixed cover through the first cover body perforation of the fixed cover, the vulcanization part is integrally vulcanized to a top portion of the fixed cover, and the vulcanization part wraps a top portion of the preamplifier board, the transmitting array is mounted to the fixed cover, wherein the fixed cover is mounted to the watertight chamber in a manner of closing a cavity opening of the accommodation cavity of the watertight chamber, and the preamplifier board of the receiving array and the transmitting array are respectively connected to the circuit board unit.

[0010] According to one embodiment of the present application, the fixed cover has a mounting groove, and a portion of the transmitting array sinks into the mounting groove of the fixed cover.

[0011] According to one embodiment of the present application, the fixed cover has inclined surfaces on opposite sides of the mounting groove, and a height position of an end portion of the inclined surface adjacent to the mounting groove is higher than a height position of an end portion of the inclined surface away from the mounting groove.

[0012] According to one embodiment of the present application, the fixed cover has a ring body and a baffle plate at a rear portion and a front portion of the mounting groove, respectively, the ring body surrounds a top portion of the preamplifier board, the vulcanization part is formed inside the ring body, and the baffle plate is matched in shape and size to a portion of the transmitting array that does not sink into the mounting groove of the fixed cover.

[0013] According to one embodiment of the present application, an acute angle is formed between an extension direction of the watertight terminal and a height direction of the sonar.

[0014] According to one embodiment of the present application, the acute angle formed between the extension direction of the watertight terminal and the height direction of the sonar ranges from 15° to 30°.

[0015] According to one embodiment of the present application, the fixed cover has a heat dissipation platform extending downward from a rim of the first cover body perforation, and a preamplifier chip of the preamplifier board and the heat dissipation platform of the fixed cover correspond in horizontal direction or are slightly misaligned, wherein the sonar further comprises a compression unit, the compression unit comprises a compression sheet and a connecting arm, the compression sheet is arranged at an end portion of the connecting arm, the connecting arm is mounted to the fixed cover, the compression sheet is inserted into a space between the preamplifier chip of the preamplifier board and the heat dissipation platform of the fixed cover, and one side of the compression sheet is attached to the preamplifier chip of the preamplifier board, and the other side of the connecting arm is attached to the heat dissipation platform of the fixed cover.

[0016] According to one embodiment of the present invention, the fixed cover has a heat dissipation platform, which extends downward from the edge of the hole of the first cover body, and the front amplifier chip of the front amplifier board and the heat dissipation platform of the fixed cover are in surface contact with each other.

[0017] According to one embodiment of the present invention, the surface of the insert that contacts the front amplifier chip of the front amplifier board is flat, and the surface of the connecting arm that contacts the heat sink is inclined. According to one embodiment of the present invention, thermal grease is provided between the front amplifier chip of the front amplifier board and the insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a sonar according to a preferred embodiment of the present invention.

[0019] Figure 2 1 is a schematic diagram of a top-down view of the sonar according to the preferred embodiment of the present invention.

[0020] Figure 3 1 is a schematic diagram of an exploded view of the sonar according to the preferred embodiment of the present invention from a first perspective.

[0021] Figure 4 1 is a schematic exploded view of the sonar according to the preferred embodiment of the present invention from a second perspective.

[0022] Figure 5 1 is a schematic exploded view of the sonar according to the preferred embodiment of the present invention from a third viewing angle.

[0023] Figure 6 1 is a schematic cross-sectional view of the sonar according to the preferred embodiment of the present invention from a planar perspective.

[0024] Figure 7 1 is a schematic cross-sectional view of the sonar at the first position according to the preferred embodiment of the present invention.

[0025] Figure 8 FIG1 is a cross-sectional schematic diagram of a second position of the sonar according to the preferred embodiment of the present invention from a three-dimensional perspective.

[0026] Figure 9A 1 is a schematic cross-sectional view of the sonar at a third position according to the preferred embodiment of the present invention.

[0027] Figure 9B yes Figure 9A A magnified view of the local location.

[0028] Figure 10 It is a three-dimensional schematic diagram of a local position of the sonar according to the above preferred embodiment of the present invention.

[0029] Figure 11 is an exploded view of a first perspective of the partial location of the sonar in accordance with the above-described preferred embodiment of the present application.

[0030] Figure 12 is an exploded view of a second perspective of the partial location of the sonar in accordance with the above-described preferred embodiment of the present application.

[0031] Figure 13 is a perspective view of a first perspective of another partial location of the sonar in accordance with the above-described preferred embodiment of the present application.

[0032] Figure 14 is a perspective view of a second perspective of the partial location of the sonar in accordance with the above-described preferred embodiment of the present application.

[0033] Figure 15 is an exploded view of a first perspective of the partial location of the sonar in accordance with the above-described preferred embodiment of the present application.

[0034] Figure 16 is an exploded view of a second perspective of the partial location of the sonar in accordance with the above-described preferred embodiment of the present application. DETAILED DESCRIPTION

[0035] 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 of 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.

[0036] Moreover, in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, the term "one" cannot be understood as a limitation of the number.

[0037] Reference is made to the drawings accompanying the specification of the present application Figures 1 to 16 A detachable sonar of a transmitting array according to a preferred embodiment of the present application will be disclosed and described in the following description, wherein the sonar comprises a watertight cabin 10, a watertight terminal 20, a circuit board unit 30 and a transceiving array unit 40.

[0038] Reference is made to the drawings accompanying the specification of the present application Figures 3 to 9B The watertight cabin 10 has a receiving cavity 11, and the watertight terminal 20 is watertightly installed in the watertight cabin 10. Specifically, the watertight cabin 10 further has a terminal passage 12 which is communicated with the receiving cavity 11 and the outside, wherein one end of the watertight terminal 20 extends from the outside to the receiving cavity 11 of the watertight cabin 10 through the terminal passage 12 of the watertight cabin 10, and an "O" ring is arranged between the watertight terminal 20 and the watertight cabin 10 to watertightly install the watertight terminal 20 in the watertight cabin 10.

[0039] The circuit board unit 30 is received in the receiving cavity 11 of the watertight cabin 10, and the circuit board unit 30 is connected to the watertight terminal 20.

[0040] The transceiver array unit 40 comprises a fixed cover 41, a vulcanization part 42, a receiving array 43 and a transmitting array 44. The fixed cover 41 has at least a first cover body perforation 411, wherein the receiving array 43 has at least a front board 431, the top of which extends above the fixed cover 41 through the first cover body perforation 411 of the fixed cover 41, wherein the vulcanization part 42 is integrally vulcanized on the top of the fixed cover 41, and the vulcanization part 42 wraps the top of the front board 431, wherein the transmitting array 44 is detachably mounted on the fixed cover 41. The fixed cover 41 is mounted on the watertight cabin 10 in a manner of closing the cavity opening of the accommodating cavity 11 of the watertight cabin 10, and the front board 431 of the receiving array 43 and the transmitting array 44 are respectively connected to the circuit board unit 30.

[0041] In the sonar of the present application, the fixed cover 41, the vulcanization part 42 and the receiving array 43 are combined into one whole during the vulcanization of the vulcanization part 42, and after vulcanization, the transmitting array 44 is mounted on the fixed cover 41, that is, the receiving array 43 cannot be detached from the fixed cover 41, and the transmitting array 44 can be detached from the fixed cover 41, in this way, when one of the receiving array 43 and the transmitting array 44 is damaged, only the damaged array needs to be repaired or replaced, so as to avoid waste and reduce the maintenance cost of the sonar. It can be understood that during the vulcanization of the vulcanization part 42 on the top of the fixed cover 41, the receiving array 43 may be slightly tilted, and the amount of tilt can be obtained by measuring after the sonar is powered on, and during the installation of the transmitting array 44, the amount of tilt of the transmitting array 44 can be fine-tuned to adapt the receiving array 43 and the transmitting array 44, so as to ensure the performance of the sonar.

[0042] Reference is made to the accompanying drawings Figure 1 , Figure 7 and Figure 8The middle part of the front side of the watertight cabin 10 has a recess 13 and a mounting platform 14 for defining the recess 13, the terminal channel 12 is arranged on the mounting platform 14, and the terminal channel 12 is communicated with the receiving cavity 11 and the recess 13 of the watertight cabin 10. The watertight terminal 20 is mounted on the mounting platform 14 of the watertight cabin 10, for example, in some embodiments, the watertight terminal 20 can be locked on the mounting platform 14 of the watertight cabin 10 by a screw cap, and in other embodiments, the watertight terminal 20 can also be vulcanized on the mounting platform 14 of the watertight cabin 10. The outer end of the watertight terminal 20 is located in the recess 13 of the watertight cabin 10, avoiding the outer end of the watertight terminal 20 protruding from the front side of the watertight cabin 10, so that when the sonar is transported, the space occupied by the sonar can be reduced, the reliability of the conductive relationship between the watertight terminal 20 and the circuit board unit 30 can be ensured, and the watertightness of the mounting position of the watertight terminal 20 and the watertight cabin 10 can be ensured.

[0043] It should be noted that by allowing the outer end of the watertight terminal 20 to be located in the recess 13 of the watertight cabin 10, the reliability of the conductive relationship between the watertight terminal 20 and the circuit board unit 30 can be ensured, and the watertightness of the mounting position of the watertight terminal 20 and the watertight cabin 10 can be ensured, because the watertight terminal 20 is not easily collided during the transportation of the sonar.

[0044] Preferably, reference is made to the accompanying drawings Figure 8 Preferably, the mounting platform 14 of the watertight cabin 10 is not horizontally arranged, but has an acute angle with the horizontal plane, so that the extension direction of the watertight terminal 20 and the height direction of the sonar have an acute angle, in this way, not only the space of the receiving cavity 11 of the watertight cabin 10 can be saved, but also the space of the receiving cavity 11 of the watertight cabin 10 can be more regular, especially the bottom of the receiving cavity 11 of the watertight cabin 10 has a more regular shape, which is beneficial to fully utilize the receiving cavity 11 of the watertight cabin 10. In addition, by arranging the watertight terminal 20 in an inclined manner, when connecting the cable of the watertight terminal 20 and the ship or submarine, not only the screw cap for connecting the cable of the watertight terminal 20 and the ship or submarine can be conveniently tightened by hand, but also when the sonar is equipped to the application environment, the problem that the cable is easily broken at the connection position of the cable and the watertight terminal 20 due to the need for transverse extension can be avoided.

[0045] In the sonar, the angle formed between the extending direction of the watertight terminal 20 and the height direction of the sonar should not be too small or too large. If the angle formed between the extending direction of the watertight terminal 20 and the height direction of the sonar is too small, the watertight terminal 20 tends to be vertically arranged, which results in that the above beneficial effect of the inclined arrangement of the watertight terminal 20 is not obvious. If the angle formed between the extending direction of the watertight terminal 20 and the height direction of the sonar is too large, the watertight terminal 20 tends to be horizontally arranged, which also results in that the above beneficial effect of the inclined arrangement of the watertight terminal 20 is not obvious. Therefore, in the sonar, in order to ensure that the inclined arrangement of the watertight terminal 20 has the above beneficial effect obviously, the angle formed between the extending direction of the watertight terminal 20 and the height direction of the sonar is preferably not less than 15° and not more than 30°, i.e. the angle formed between the extending direction of the watertight terminal 20 and the height direction of the sonar is preferably in the range of 15°-30°.

[0046] Reference is made to the accompanying drawings Figure 9A , Figure 9B , Figure 11 and Figure 12 The fixing cover 41 has a mounting groove 412, and a part of the transmitting array 44 is sunken into the mounting groove 412 of the fixing cover 41. In this way, the height dimension of the sonar is reduced, and the sonar is miniaturized.

[0047] Further, the fixing cover 41 has a positioning groove 410 which is concave from one side of the mounting groove 412, and the transmitting array 44 has a positioning boss 440 at the bottom of the transmitting array 44. When a part of the transmitting array 44 is sunken into the mounting groove 412 of the fixing cover 41, the positioning boss 440 of the transmitting array 44 extends into the positioning groove 410 of the fixing cover 41, so that the mounting direction of the transmitting array 44 is prevented from being installed reversely, and the "fool-proof" assembly of the transmitting array 44 is realized. Preferably, the size of the positioning groove 410 of the fixing cover 41 is slightly larger than the size of the positioning boss 440 of the transmitting array 44, so that the inclination of the transmitting array 44 can be finely adjusted during the installation of the transmitting array 44, so that the receiving array 43 and the transmitting array 44 are adapted to each other, and the performance of the sonar is ensured.

[0048] The fixed cover 41 further has a ring body 413 and a baffle plate 414, wherein the ring body 413 is located at the rear side of the mounting groove 412 and surrounds the top of the front plate 431 of the receiving array 43, and the vulcanization part 42 is formed inside the ring body 413, and the baffle plate 414 is located at the front side of the mounting groove 412, and the shape and size of the baffle plate 414 match the shape and size of the part of the transmitting array 44 which does not sink into the mounting groove 412 of the fixed cover 41. That is, the ring body 413 and the baffle plate 414 of the fixed cover 41 are located at the rear side and the front side of the transmitting array 44 respectively, so that when the sonar moves in water, the ring body 413 and the baffle plate 414 of the fixed cover 41 can avoid direct collision with the transmitting array 44, not only protecting the transmitting array 44, but also protecting the water tightness of the mounting position of the transmitting array 44 and the fixed cover 41. Moreover, since the shape and size of the baffle plate 414 of the fixed cover 41 match the shape and size of the part of the transmitting array 44 which does not sink into the mounting groove 412 of the fixed cover 41, the baffle plate 414 of the fixed cover 41 will not block the acoustic wave signals emitted by the transmitting array 44.

[0049] Referring to the accompanying drawings Figures 1 to 4 , Figures 7 to 9B , the fixed cover 41 has two inclined surfaces 415, and the two inclined surfaces 415 are located at opposite sides of the mounting groove 412 respectively, and the height position of the adjacent part of the two inclined surfaces 415 to the mounting groove 412 is higher than the height position of the end part of the two inclined surfaces 415 away from the mounting groove 412, that is, the included angle between the extension directions of the two inclined surfaces 415 of the fixed cover 41 is greater than 180°, in this way, when the sonar moves in water, the inclined surfaces 415 of the fixed cover 41 can push the water flow away from both sides of the transmitting array 44, avoiding the generation of micro bubbles on the opposite sides of the transmitting array 44, ensuring that the acoustic wave signals emitted by the transmitting array 44 only pass through one medium (i.e. water) and are beneficial to improve the detection accuracy of the sonar, on the other hand, the transmitting array 44 can have a larger field of view angle to avoid interference. Preferably, the two inclined surfaces 415 of the fixed cover 41 are symmetrical to each other.

[0050] Referring to the accompanying drawings Figure 9A and Figure 9B , the fixed cover 41 has a second cover body through hole 416 which communicates the mounting groove 412 of the fixed cover 41 and the receiving cavity 11 of the water-tight cabin 10, and the cable for connecting the circuit board unit 30 and the transmitting array 44 passes through the second cover body through hole 416 of the fixed cover 41.

[0051] In the attached Figures 1 to 16 In the specific example of the sonar of the present invention shown, the transmitting array 44 is locked to the fixing cover 41 by at least one screw 100, so that the transmitting array 44 is reliably installed on the fixing cover 41. Specifically, the emitting array 44 has at least one first threaded hole 441, and the fixing cover 41 has at least one first screw hole 417. The first screw hole 417 extends from the bottom of the mounting slot 412 to the bottom of the fixing cover 41. After the bottom of the emitting array 44 sinks into the mounting slot 412 of the fixing cover 41, the first screw hole 417 of the fixing cover 41 corresponds to the first threaded hole 441 of the emitting array 44. The threaded end of the screw 100 passes through the first screw hole 417 of the fixing cover 41 and extends to the first threaded hole 441 of the emitting array 44. The threaded end of the screw 100 is screwed into the emitting array 44, and the threaded end of the screw 100 is screwed into the emitting array 44. In this way, the emitting array 44 is locked to the fixing cover 41 by the screw 100. It is understood that after the threaded end of the screw 100 exits the first threaded hole 441 of the emitting array 44, the emitting array 44 is removed from the fixing cover 41.

[0052] Specifically, the number of the first threaded holes 441 of the emitting array 44 is two, which are respectively located on opposite sides of the second cover body through-hole 416. Correspondingly, the number of the first screw holes 417 of the fixing cover 41 is two. After the bottom of the emitting array 44 sinks to the mounting groove 412 of the fixing cover 41, the two first screw holes 417 of the fixing cover 41 and the two first threaded holes 441 of the emitting array 44 correspond to each other, and the threaded ends of the two screws 100 extend to the two first threaded holes 441 of the emitting array 44 after respectively passing through the two first screw holes 417 of the fixing cover 41, and the threaded ends of the two screws 100 are respectively screwed to the emitting array 44, so that the emitting array 44 is locked to the fixing cover 41 by the two screws 100.

[0053] In particular, continue to refer to the attached Figure 9A and Figure 9B There is at least one sealing ring 200 between the emitting array 44 and the fixed cover 41. In the process of locking the emitting array 44 to the fixed cover 41 through the screw 100, the sealing ring 200 is pressed by the emitting array 44 and the fixed cover 41 and deformed to increase the watertightness between the emitting array 44 and the fixed cover 41.

[0054] Reference Attachment Figures 3 to 6 、 Figures 10 to 12The receiving array 43 has at least one preamplifier board 431, and the preamplifier board 431 has at least one preamplifier board chip 4311. The fixing cover 41 has at least one heat dissipation platform 418, which extends downward from the edge of the first cover body. The preamplifier board chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixing cover 41 are arranged face to face. The sonar further comprises at least one compression unit 50, which comprises at least one insertion sheet 51 and a connecting arm 52. The insertion sheet 51 is arranged at the end of the connecting arm 52. At least a part of the insertion sheet 51 is inserted between the preamplifier board chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixing cover 41. One side of the insertion sheet 51 is attached to the preamplifier board chip 4311 of the preamplifier board 431, and one side of the connecting arm 52 is attached to the heat dissipation platform 418 of the fixing cover 41. In this way, the heat generated by the preamplifier board chip 4311 of the preamplifier board 431 during work can be quickly conducted to the fixing cover 41 through the insertion sheet 51 and the connecting arm 52, and dissipated through the fixing cover 41, thereby greatly improving the heat dissipation speed of the sonar.

[0055] Preferably, the surface of the heat dissipation platform 418 of the fixing cover 41 facing the preamplifier board chip 4311 of the preamplifier board 431 is an inclined surface, and therefore the surface of the connecting arm 52 facing away from the preamplifier board chip 4311 of the preamplifier board 431 is an inclined surface, and the surface of the insertion sheet 51 facing the preamplifier board chip 4311 of the preamplifier board 431 is a flat surface. In this way, during the process of inserting the insertion sheet 51 into the space between the preamplifier board chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixing cover 41, the inclined surface of the heat dissipation platform 418 of the fixing cover 41 and the inclined surface of the connecting arm 52 cooperate with each other, so that the insertion sheet 51 moves laterally towards the preamplifier board chip 4311 of the preamplifier board 431 as its insertion depth changes, and finally ensures that one side of the insertion sheet 51 is attached to the preamplifier board chip 4311 of the preamplifier board 431 and one side of the connecting arm 52 is close to the heat dissipation platform 418 of the fixing cover 41, so that the heat generated by the preamplifier board chip 4311 of the preamplifier board 431 during work can be directly conducted to the fixing cover 41 through the insertion sheet 51, thereby ensuring the heat dissipation efficiency of the sonar. Preferably, the sonar can be provided with a heat-conducting silicone grease 300 between the preamplifier board chip 4311 of the preamplifier board 431 and the insertion sheet 51.

[0056] Optionally, in other examples of the sonar of the present application, the opposite sides of the insertion sheet 51 can be attached to the preamplifier chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixing cover 41, respectively. Optionally, in other examples of the sonar of the present application, the preamplifier chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixing cover 41 can also be directly attached, so that the heat generated by the preamplifier chip 4311 of the preamplifier board 431 during operation can be directly conducted to the fixing cover 41 and dissipated through the fixing cover 41.

[0057] In the drawings: Figures 1 to 16 In this specific example of the sonar of the present application, the preamplifier board 431 has two preamplifier chips 4311 arranged at a distance from each other along the width direction of the preamplifier board 431, and accordingly, the fixing cover 41 is provided with two downwardly extending heat dissipation platforms 418 at the edge of the first cover body through hole 411, and the two preamplifier chips 4311 of the preamplifier board 431 and the two heat dissipation platforms 418 of the fixing cover 41 correspond to each other in the horizontal direction. The compression unit 50 includes two insertion sheets 51 symmetrically arranged on opposite sides of the connecting arm 52, and the connecting arm 52 is mounted to the fixing cover 41, and the two insertion sheets 51 are inserted and held in the space between the two preamplifier chips 4311 of the preamplifier board 431 and the two heat dissipation platforms 418 of the fixing cover 41 by the connecting arm 52.

[0058] In the sonar of the present application, the screw rod 100 can be used to mount the connecting arm 52 to the fixing cover 41. Specifically, referring to the drawings: Figure 8The fixed cover 41 has at least one second threaded hole 419, and the connecting arm 52 has at least one second screw hole 521. After the two insertion pieces 51 are inserted into the space between the two front plate chips 4311 of the front plate 431 and the two heat dissipation platforms 418 of the fixed cover 41, the second screw hole 521 of the connecting arm 52 corresponds to the second threaded hole 419 of the fixed cover 41. The threaded end of the screw 100 is aligned with the second threaded hole 419 of the fixed cover 41 after passing through the second screw hole 521 of the connecting arm 52. During the process of rotating the screw 100 to allow the threaded end of the screw 100 to extend into the second threaded hole 419 of the fixed cover 41 in a screwed manner, the screw 100 applies pressure to the connecting arm 52, causing the connecting arm 52 to move towards the fixed cover 41. The connecting arm 52 drives the two insertion pieces 51 to move synchronously, adjusting the insertion depth of the insertion pieces 51 and the lateral movement distance of the insertion pieces 51. After the insertion pieces 51 are attached to the front plate chips 4311 of the front plate 431, the rotation of the screw 100 is stopped. Thus, the screw 100 is used to install the connecting arm 52 on the fixed cover 41, and ensures that one side of the insertion pieces 51 is attached to the front plate chips 4311 of the front plate 431 and one side of the connecting arm 52 is close to the heat dissipation platforms 418 of the fixed cover 41.

[0059] In this specific example of the sonar of the present application, at least one of the preamplifier board chips 4311 of the preamplifier board 431 is a chip for receiving and processing acoustic wave signals, in this way, on the one hand, the circuit board unit 30 of the sonar of the present application does not include a receiving circuit board, on the other hand, since the chip for receiving and processing acoustic wave signals generates a large amount of heat when working, by the way of forming the preamplifier board chips 4311 by integrating the chip for receiving and processing acoustic wave signals in the preamplifier board 431, the heat generated by the preamplifier board chips 4311 of the preamplifier board 431 when working can be quickly conducted to the fixed cover 41 through the compression unit 50, and then dissipated through the fixed cover 41. Since the peripheral wall of the fixed cover 41 is exposed and has a large area, the fixed cover 41 can quickly dissipate heat, thereby greatly improving the heat dissipation speed of the sonar. In this specific example of the sonar of the present application, the number of preamplifier boards 431 is two, and each of the preamplifier boards 431 is respectively attached with two preamplifier board chips 4311, accordingly, the fixed cover 41 has two first cover body perforations 411, and the sonar includes two compression units 50. Preferably, each of the preamplifier board chips 4311 of one of the preamplifier boards 431 is located on the side of this preamplifier board 431 away from the other preamplifier board 431, that is, the preamplifier board chips 4311 are located on the outer side of the preamplifier board 431, so as to avoid heat source concentration and facilitate heat dissipation of the sonar.

[0060] It can be understood that the other preamplifier board chips 4311 of the preamplifier board 431 can perform other functions, and these preamplifier board chips 4311 can be attached to the top of the preamplifier board 431. Referring to FIG. 4, Figure 6 、 Figure 7 and Figure 8 The transceiver array unit 40 further includes at least one array body heat conduction sheet 45, the top of the array body heat conduction sheet 45 is attached to at least one of the preamplifier board chips 4311 of the preamplifier board 431 and is wrapped by the vulcanization part 42, and the bottom of the array body heat conduction sheet 45 can extend to the fixed cover 41, in this way, part of the heat generated by these preamplifier board chips 4311 of the preamplifier board 431 when working is directly conducted to the vulcanization part 42 and dissipated by the vulcanization part 42, and the other part is conducted to the fixed cover 41 through the array body heat conduction sheet 45 and dissipated by the fixed cover 41. It can be understood that the array body heat conduction sheet 45 is wrapped by the vulcanization part 42, so the array body heat conduction sheet 45 and the preamplifier board chips 4311 can be closely attached.

[0061] Continuing to refer to FIG. 4, Figures 3 to 9B 、 Figures 13 to 16The circuit board unit 30 comprises a main control board 31 and a transmitting board 32, the transmitting board 32, the preamplifier board 431 and the watertight terminal 20 are connected to the main control board 31. Since the circuit board unit 30 does not comprise a receiving board, the sonar can reduce the number of circuit boards, in this way, not only the cost of the sonar can be reduced, but also the miniaturization and light weight of the sonar are facilitated. At the same time, since the circuit board unit 30 does not comprise a receiving board and the chip for receiving and processing sound wave signals is mounted on the preamplifier board 431, the heat source of the sonar is dispersed, which is conducive to the heat dissipation of the sonar.

[0062] Reference is made to the accompanying drawings Figure 4 , Figures 6 to 9B The circuit board unit 30 comprises a filter board 33, the filter board 33 is accommodated in the accommodation cavity 11 of the watertight cabin 10, for example, the screw rod 100 can be used to lock the filter board 33 to the watertight cabin 10, so as to accommodate the filter board 33 in the accommodation cavity 11 of the watertight cabin 10, wherein the watertight terminal 20 is connected to the filter board 33, the filter board 33 is connected to the main control board 31, so that the watertight terminal 20 is connected to the main control board 31 through the filter board 33. The filter board 33 is used to provide filtering effect, for removing noise interference and / or performing frequency selection, etc. Preferably, the filter board 33 and the watertight terminal 20 are adjacent.

[0063] Reference is made to the accompanying drawings Figures 5 to 9B The circuit board unit 30 comprises a power supply board 34, the power supply board 34 is mounted on the fixed cover 41 in a face-to-face manner, for example, the screw rod 100 can be used to lock the power supply board 34 to the fixed cover 41, so as to mount the power supply board 34 on the fixed cover 41 in a face-to-face manner, wherein the transmitting array 44 and the transmitting board 32 are connected to the power supply board 34. Since the power supply board 34 and the fixed cover 41 are face-to-face, the heat generated by the power supply board 34 during operation can be directly conducted to the fixed cover 41 and dissipated through the fixed cover 41. At the same time, the power supply board 34 is away from the main control board 31, the transmitting board 32 and the filter board 33, so that the sonar can avoid heat concentration and facilitate heat dissipation of the sonar.

[0064] Reference is made to the accompanying drawings Figures 3 to 5The circuit board unit 30 further comprises a plurality of flexible wires 35, at least one of which can be used to connect the main control board 31 and the preamplifier board 431 to make them conductive, at least one of which can be used to connect the main control board 31 and the filter board 33 to make them conductive, and at least one of which can be used to connect the transmitting board 32 and the power supply board 34 to make them conductive.

[0065] With reference to the accompanying drawings Figures 3 to 9B 、 Figures 13 to 16 The sonar further comprises a bracket 60, the main control board 31 and the transmitting board 32 are installed at a distance from each other on the bracket 60, the bracket 60 is installed on the fixed cover 41, after the fixed cover 41 is installed on the watertight cabin 10, the fixed cover 41 and the bracket 60 accommodate the main control board 31 and the transmitting board 32 in the accommodating cavity 11 of the watertight cabin 10, in this way, on the one hand, during the assembly of the sonar, the conductive connection between the main control board 31 and the transmitting board 32, the conductive connection between the main control board 31 and the preamplifier board 431, and the conductive connection between the transmitting board 32 and the power supply board 34 can be realized outside the watertight cabin 10, after the filter board 33 and the main control board 31 are connected, the fixed cover 41 is installed on the watertight cabin 10 and closes the cavity opening of the accommodating cavity 11 of the watertight cabin 10, so as to reduce the steps of operation in a small space, not only the operation is convenient, but also the reliability of the connection relationship between the circuit boards can be greatly improved, on the other hand, the bracket 60 can not only be in surface-to-surface contact with the fixed cover 41, but also be in surface-to-surface contact with the watertight cabin 10, so as to quickly conduct the heat generated by the main control board 31 to the watertight cabin 10 and the fixed cover 41, and dissipate heat through the watertight cabin 10 and the fixed cover 41, thereby greatly improving the heat dissipation speed of the sonar.

[0066] Specifically, the support 60 comprises a bottom plate 61, a vertical plate 62 and a set of locking columns 63. The bottom of the vertical plate 62 is mounted on one side of the bottom plate 61, for example, one side of the bottom plate 61 has at least one third screw hole 611, the bottom of the vertical plate 62 has at least one third threaded hole 621, the third threaded hole 621 of the vertical plate 62 corresponds to the third screw hole 611 of the bottom plate 61, the threaded end of the screw 100 extends to the third threaded hole 621 of the vertical plate 62 after passing through the third screw hole 611 of the bottom plate 61, and the threaded end of the screw 100 is screwed to the vertical plate 62, so that the screw 100 is used to mount the bottom of the vertical plate 62 on one side of the bottom plate 61. The vertical plate 62 further has a set of fourth threaded holes 622, the main control plate 31 has at least one set of fourth screw holes 311, the main control plate 31 is arranged on one side of the vertical plate 62, the fourth screw hole 311 of the main control plate 31 corresponds to the fourth threaded hole 622 of the vertical plate 62, the locking column 63 comprises a spacing section 631 and a screwing section 632 extending from the spacing section 631, the outer diameter of the spacing section 631 is greater than the inner diameter of the fourth screw hole 311 of the main control plate 31, the screwing section 632 of the locking column 63 extends to the fourth threaded hole 622 of the vertical plate 62 after passing through the fourth screw hole 311 of the main control plate 31, and the screwing section 632 is screwed to the vertical plate 62, so that the locking column 63 is used to mount the main control plate 31 to the support 60. The locking column 63 is provided with a fifth threaded hole 633 at the spacing section 631, the transmitting plate 32 has a set of fifth screw holes 321, the inner diameter of the fifth screw hole 321 is smaller than the outer diameter of the spacing section 631, the transmitting plate 32 is arranged on one side of the main control plate 31 and is isolated from the main control plate 31 and the transmitting plate 32 by the spacing section 631, the fifth screw hole 321 of the transmitting plate 32 corresponds to the fifth threaded hole 633 of the locking column 63, the threaded end of the screw 100 extends to the fifth threaded hole 633 of the locking column 63 after passing through the fifth screw hole 321 of the transmitting plate 32, and the threaded end of the screw 100 is screwed to the locking column 63, so that the screw 100 is used to mount the transmitting plate 32 to the support 60.

[0067] In the sonar of the present application, each corner of the vertical plate 62 is respectively provided with one fourth threaded hole 622, each corner of the main control plate 31 is respectively provided with one fourth screw hole 311, and each corner of the transmitting plate 32 is respectively provided with one fifth screw hole 321, in this way, the main control plate 31 and the transmitting plate 32 can be reliably mounted to the support 60.

[0068] Referring to the drawings Figure 15 and Figure 16 The stand plate 62 has a heat-conducting platform 623, and the main control board 31 has a main control board chip 312. The main control board chip 312 of the main control board 31 is attached to the heat-conducting platform 623 of the stand plate 62. Thus, the heat generated by the main control board chip 312 of the main control board 31 during operation can be quickly conducted to the stand plate 62 and further conducted to the watertight cabin 10 and the fixing cover 41 for heat dissipation, thereby greatly improving the heat dissipation speed of the sonar. Preferably, the sonar can be provided with the heat-conducting silicone grease 300 between the main control board chip 312 of the main control board 31 and the heat-conducting platform 623 of the stand plate 62.

[0069] Continuing to refer to the drawings Figure 15 and Figure 16 The main control board 31 has a main control board connector 313, and the transmitting board 32 has a transmitting board connector 322. The transmitting board connector 322 of the transmitting board 32 is inserted into the main control board connector 313 of the main control board 31 to conductively connect the main control board 31 and the transmitting board 32 by the main control board connector 313 and the transmitting board connector 322. Thus, no flying wire is needed between the main control board 31 and the transmitting board 32, thereby not only avoiding the problem of disconnection of the solder joint of the flying wire during assembly of the sonar, but also avoiding the problem of actual performance decline of the sonar due to poor consistency of the solder joint.

[0070] Referring to the drawings Figures 3 to 5 , Figures 13 to 16 The top of the stand plate 62 is mounted to the fixing cover 41. After the fixing cover 41 is mounted to the watertight cabin 10, the fixing cover 41 and the bracket 60 accommodate the main control board 31 and the transmitting board 32 in the accommodation cavity 11 of the watertight cabin 10. Specifically, the stand plate 62 has at least one sixth screw hole 624, and the fixing cover 41 has at least one sixth threaded hole 4110. The sixth screw hole 624 of the stand plate 62 corresponds to the sixth threaded hole 4110 of the fixing cover 41. The threaded end of the screw 100 extends to the sixth threaded hole 4110 of the fixing cover 41 after passing through the sixth screw hole 624 of the stand plate 62, and the threaded end of the screw 100 is screwed to the fixing cover 41. Thus, the screw 100 is used to mount the stand plate 62 to the fixing cover 41.

[0071] In this specific example of the sonar of the present application, the top of the stand 62 has two sixth screw holes 624 on opposite sides, and the fixed cover 41 has two sixth threaded holes 4110 on opposite sides, respectively. The threaded ends of the two screws 100 extend through the two sixth screw holes 624 of the stand 62 and into the two sixth threaded holes 4110 of the fixed cover 41, so that the stand 62 is securely mounted to the fixed cover 41 by the two screws 100.

[0072] Referring to the drawings Figure 3 , Figure 5 , Figure 13 and Figure 15 , the bracket 60 includes at least one bracket heat-conducting sheet 64, the bottom of the bracket heat-conducting sheet 64 is mounted to the side of the bottom plate 61 away from the stand 62, and the transmitting plate 32 has a transmitting plate chip 323, the transmitting plate chip 323 is attached to the bracket heat-conducting sheet 64, so that the heat generated by the transmitting plate chip 323 of the transmitting plate 32 during operation can be quickly conducted to the bracket heat-conducting sheet 64, the bracket heat-conducting sheet 64 conducts heat to the bottom plate 61 and further to the watertight cabin 10, and heat dissipation is performed through the watertight cabin 10. Preferably, the sonar is provided with the heat-conducting silicone grease 300 between the transmitting plate chip 323 of the transmitting plate 32 and the bracket heat-conducting sheet 64.

[0073] Specifically, the bottom plate 61 has at least one seventh screw hole 612, the bottom of the bracket heat-conducting sheet 64 has at least one seventh threaded hole 641, the seventh threaded hole 641 of the bracket heat-conducting sheet 64 corresponds to the seventh screw hole 612 of the bottom plate 61, the threaded end of the screw 100 extends through the seventh screw hole 612 of the bottom plate 61 and into the seventh threaded hole 641 of the bracket heat-conducting sheet 64, and the threaded end of the screw 100 is screwed to the bracket heat-conducting sheet 64, so that the screw 100 is used to mount the bracket heat-conducting sheet 64 to the bottom plate 61.

[0074] Continuing to refer to the drawings Figure 9A , the sonar further includes a pressure sensor 70, the pressure sensor 70 is mounted to the fixed cover 41, and the pressure sensor 70 is connected to the circuit board unit 30, for example, the pressure sensor 70 is connected to the power board 34. When the sonar is placed in water, the pressure sensor 70 can measure the current depth of the sonar according to water pressure.

[0075] Preferably, the fixed cover 41 has an embedding groove 4111 and a third cover passage 4112, the third cover passage 4112 being communicated with the embedding groove 4111 of the fixed cover 41 and the accommodating cavity 11 of the watertight cabin 10, wherein the top of the pressure sensor 70 is arranged in the embedding groove 4111 of the fixed cover 41, and the bottom of the pressure sensor 70 passes through the third cover passage 4112 of the fixed cover 41. The sonar further comprises a nut 80, the outer diameter of the nut 80 being greater than the inner diameter of the third cover passage 4112 of the fixed cover 41, and the nut 80 is screwed on the part of the pressure sensor 70 passing through the third cover passage 4112 of the fixed cover 41, so as to mount the pressure sensor 70 on the fixed cover 41. Preferably, the power panel 34 has an avoiding perforation 341 for avoiding the nut 80.

[0076] In particular, with continued reference to the drawings Figure 9A Preferably, at least one sealing ring 200 is arranged between the pressure sensor 70 and the fixed cover 41, and in the process of screwing the nut 80 on the part of the pressure sensor 70 passing through the third cover passage 4112 of the fixed cover 41, the sealing ring 200 is deformed by the pressure of the pressure sensor 70 and the fixed cover 41, so as to increase the water tightness between the pressure sensor 70 and the fixed cover 41.

[0077] With continued reference to the drawings Figure 9A Preferably, the embedding groove 4111 of the fixed cover 41 is recessed downward from the groove bottom of the mounting groove 412, so that the pressure sensor 70 is located below the transmitting array 44, so as to hide the pressure sensor 70. That is, the pressure sensor 70 is visually invisible. In order to enable the pressure sensor 70 to measure water pressure to measure the current depth of the sonar, the sonar has a gap 90 formed between the transmitting array 44 and the fixed cover 41, and the gap 90 is communicated with the external environment and the embedding groove 4111, and when the sonar is placed in water, water can reach the position of the embedding groove 4111 of the fixed cover 41 through the gap 90, at this time the pressure sensor 70 can measure water pressure, thereby measuring the current depth of the sonar.

[0078] The assembly process of the sonar of the present application can comprise the following steps.

[0079] S1, the watertight terminal 20 is watertightly mounted on the watertight cabin 10.

[0080] S2, install the filter board 33 to the watertight cabin 10 in a way that the filter board 33 is housed in the housing cavity 11 of the watertight cabin 10, and connect the watertight terminal 20 and the filter board 33.

[0081] S3, allow the top of the preamplifier board 431 to extend above the fixed cover 41 through the first cover body through hole 411 of the fixed cover 41, and adhere the top of the array heat conduction sheet 45 to the preamplifier board chip 4311 at the top of the preamplifier board 431, and adhere the bottom of the array heat conduction sheet 45 to the fixed cover 41.

[0082] S4, vulcanize the vulcanization part 42 in the ring body 413 of the fixed cover 41, wherein the vulcanization part 42 wraps the preamplifier board 431 and the array heat conduction sheet 45, and the preamplifier board chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixed cover 41 correspond in the horizontal direction or slightly misalign.

[0083] S5, after the insertion pieces 51 of the pressing unit 50 are inserted into the space between the preamplifier board chip 4311 of the preamplifier board 431 and the heat dissipation platform 418 of the fixed cover 41, allow the threaded end of the screw rod 100 to pass through the second screw rod hole 521 of the connecting arm 52 and align with the second threaded hole 419 of the fixed cover 41, rotate the screw rod 100 to make the threaded end of the screw rod 100 extend into the second threaded hole 419 of the fixed cover 41 during the process of being screwed into the fixed cover 41, in this process, the screw rod 100 applies pressure to the connecting arm 52, so that the connecting arm 52 moves towards the fixed cover 41, the connecting arm 52 drives the two insertion pieces 51 to move synchronously to adjust the insertion depth of the insertion pieces 51 and the lateral movement distance of the insertion pieces 51, stop rotating the screw rod 100 after the insertion pieces 51 adhere to the preamplifier board chip 4311 of the preamplifier board 431, so that the screw rod 100 is used to install the connecting arm 52 to the fixed cover 41, and ensure that one side of the insertion pieces 51 is tightly attached to the preamplifier board chip 4311 of the preamplifier board 431 and one side of the connecting arm 52 is close to the heat dissipation platform 418 of the fixed cover 41.

[0084] S6, after a part of the pressure sensor 70 passes through the third cover body passage 4112 of the fixed cover 41, allow the screw cap 80 to be screwed onto the part of the pressure sensor 70 that passes through the third cover body passage 4112 of the fixed cover 41, so as to install the pressure sensor 70 to the fixed cover 41.

[0085] S7, after the part of the transmitting array 44 is sunk into the mounting groove 412 of the fixed cover 41, the threaded end of the screw rod 100 is allowed to pass through the first screw rod hole 417 of the fixed cover 41 and align with the first threaded hole 441 of the transmitting array 44, the screw rod 100 is rotated to make the threaded end of the screw rod 100 extend into the first threaded hole 441 of the transmitting array 44 in the process of being screwed into the transmitting array 44, so as to install the transmitting array 44 on the fixed cover 41.

[0086] S8, the power board 34 is installed on the fixed cover 41 in a face-to-face manner by the screw rod 100, and the transmitting array 44 and the pressure sensor 70 are connected to the power board 34.

[0087] S9, the main control board 31 is arranged on one side of the vertical plate 62 in a manner that the main control board chip 312 is attached to the heat-conducting platform 623 of the vertical plate 62, the fourth screw rod hole 311 of the main control board 31 corresponds to the fourth threaded hole 622 of the vertical plate 62, the screwing section 632 of the locking column 63 is allowed to align with the fourth threaded hole 622 of the vertical plate 62 after passing through the fourth screw rod hole 311 of the main control board 31, the locking column 63 is rotated to make the screwing section 632 extend into the fourth threaded hole 622 of the vertical plate 62 in the process of being screwed into the vertical plate 62, so that the main control board 31 is installed on the support 60.

[0088] S10, the transmitting board 32 is arranged on one side of the main control board 31 in a manner that the transmitting board connector 322 of the transmitting board 32 is inserted into the main control board connector 313 of the main control board 31, the fifth screw rod hole 321 of the transmitting board 32 corresponds to the fifth threaded hole 633 of the locking column 63, the threaded end of the screw rod 100 is allowed to align with the fifth threaded hole 633 of the locking column 63 after passing through the fifth screw rod hole 321 of the transmitting board 32, the screw rod 100 is rotated to make the threaded end of the screw rod 100 extend into the fifth threaded hole 633 of the locking column 63 in the process of being screwed into the locking column 63, so that the transmitting board 32 is installed on the support 60.

[0089] S11, the frame heat-conducting sheet 64 is arranged on one side of the emission plate 32 in a manner that the frame heat-conducting sheet 64 and the emission plate chip 323 of the emission plate 32 are attached to each other, the seventh threaded hole 641 of the frame heat-conducting sheet 64 corresponds to the seventh screw hole 612 of the bottom plate 61, the threaded end of the screw rod 100 is allowed to align with the seventh threaded hole 641 of the frame heat-conducting sheet 64 after passing through the seventh screw hole 612 of the bottom plate 61, the screw rod 100 is rotated to make the threaded end of the screw rod 100 extend into the seventh threaded hole 641 of the frame heat-conducting sheet 64 in the process of being screwed to the frame heat-conducting sheet 64, and thus the frame heat-conducting sheet 64 is mounted on the bottom plate 61.

[0090] S12, the threaded end of the screw rod 100 is allowed to align with the sixth threaded hole 4110 of the fixed cover 41 after passing through the sixth screw hole 624 of the vertical plate 62, the screw rod 100 is rotated to make the threaded end of the screw rod 100 extend into the sixth threaded hole 4110 of the fixed cover 41 in the process of being screwed to the fixed cover 41, and thus the support frame 60 is mounted on the fixed cover 41.

[0091] S13, one end of the flexible flat cable 35 is inserted into a main control board plug 314 of the main control board 31, and the other end of the flexible flat cable 35 is inserted into a preamplifier plug 4312 of the preamplifier board 431, so that the flexible flat cable 35 connects the main control board 31 and the preamplifier board 431. The extension direction of the preamplifier board 431 is consistent with the extension direction of the main control board 31, and the main control board 31 is kept below the preamplifier board 431. Since the sonar needs to be miniaturized, the distance between the top of the main control board 31 and the bottom of the preamplifier board 431 is small. Limited by the structure of the flexible flat cable 35, if the main control board plug 314 of the main control board 31 is below the preamplifier plug 4312 of the preamplifier board 431, after one end of the flexible flat cable 35 is inserted into the main control board plug 314 of the main control board 31 and the other end of the flexible flat cable 35 is inserted into the preamplifier plug 4312 of the preamplifier board 431, the flexible flat cable 35 will cause the end of the flexible flat cable 35 to have a tendency to move away from the main control board plug 314 of the main control board 31 or the preamplifier plug 4312 of the preamplifier board 431, causing the flexible flat cable 35 to loosen or even fall off. To avoid the above problem, in the sonar of the application, the preamplifier plug 4312 of the preamplifier board 431 and the main control board plug 314 of the main control board 31 are misaligned in the horizontal direction, so that the preamplifier plug 4312 of the preamplifier board 431 and the main control board plug 314 of the main control board 31 have a greater distance, so that after one end of the flexible flat cable 35 is inserted into the main control board plug 314 of the main control board 31 and the other end of the flexible flat cable 35 is inserted into the preamplifier plug 4312 of the preamplifier board 431, the shape of the flexible flat cable 35 will not cause the end of the flexible flat cable 35 to have a tendency to move away from the main control board plug 314 of the main control board 31 or the preamplifier plug 4312 of the preamplifier board 431, so that the flexible flat cable 35 can reliably connect the preamplifier board 431 and the main control board 31. In addition, the power supply board 34 and the transmitting board 32 can also be connected by the flexible flat cable 35.

[0092] S14, after the main control board 31 and the filter board 33 are turned on, an insertion part 4113 of the fixed cover 41 is allowed to be inserted into the receiving cavity 11 through the cavity opening of the receiving cavity 11 of the watertight cabin 10, and the fixed cover 41 is fixedly installed on the watertight cabin 10, at this time, the fixed cover 41 closes the cavity opening of the receiving cavity 11 of the watertight cabin 10, and the bottom surface of the bottom plate 61 of the support 60 and the bottom wall surface of the watertight cabin 10 are surface-pasted. Preferably, the bottom surface of the bottom plate 61 and the bottom wall of the watertight cabin 10 can be provided with the heat-conducting silicone grease 300. Preferably, the fixed cover 41 and the watertight cabin 10 have the sealing ring 200 therebetween to increase the water tightness of the sonar.

[0093] Those skilled in the art will understand that the above description and the embodiments of the application shown in the drawings are only examples and do not limit the application. The purpose of the application has been fully and effectively achieved. The function and structural principle of the application has been shown and explained in the embodiments, and the embodiments of the application can be any modification or modification without departing from the principle.

Claims

1. A launch array detachable sonar, characterized by, The sonar comprises: a watertight cabin, wherein the watertight cabin has a receiving cavity; a watertight terminal, wherein the watertight terminal is watertightly mounted on the watertight cabin; a circuit board unit, wherein the circuit board unit is received in the receiving cavity of the watertight cabin, and the circuit board unit is connected to the watertight terminal; and a transceiver array unit, wherein the transceiver array unit comprises a fixed cover, a vulcanized part, a receiving array and a transmitting array, the fixed cover has a first cover body through hole, the receiving array has a front amplifier board, the top of the front amplifier board extends above the fixed cover through the first cover body through hole of the fixed cover, the vulcanized part is integrally vulcanized on the top of the fixed cover, and the vulcanized part wraps the top of the front amplifier board, and after vulcanization, the transmitting array is mounted on the fixed cover, wherein the fixed cover is mounted on the watertight cabin in a manner of closing the cavity opening of the receiving cavity of the watertight cabin, and the front amplifier board of the receiving array and the transmitting array are respectively connected to the circuit board unit; the fixed cover has a mounting groove, a part of the transmitting array sinks into the mounting groove of the fixed cover, the fixed cover has inclined surfaces on opposite sides of the mounting groove, the height position of the end of the inclined surface adjacent to the mounting groove is higher than the height position of the end of the inclined surface away from the mounting groove, and the included angle between the extension directions of the two inclined surfaces is greater than 180°. The fixed cover has a heat dissipation platform extending downward from the edge of the first cover body through hole, and the front amplifier board chip of the front amplifier board and the heat dissipation platform of the fixed cover correspond or slightly offset in the horizontal direction, wherein the sonar further comprises a pressing unit, the pressing unit comprises a pressing sheet and a connecting arm, the pressing sheet is arranged at the end of the connecting arm, the connecting arm is mounted on the fixed cover, the pressing sheet is inserted into the space between the front amplifier board chip of the front amplifier board and the heat dissipation platform of the fixed cover, one side of the pressing sheet is attached to the front amplifier board chip of the front amplifier board, and the other side of the connecting arm is attached to the heat dissipation platform of the fixed cover, wherein the surface of the heat dissipation platform of the fixed cover facing the front amplifier board chip of the front amplifier board is an inclined surface, the surface of the connecting arm away from the front amplifier board chip of the front amplifier board is an inclined surface, and the surface of the pressing sheet facing the front amplifier board chip of the front amplifier board is a flat surface, during the process of inserting the pressing sheet into the space between the front amplifier board chip of the front amplifier board and the heat dissipation platform of the fixed cover, the inclined surface of the heat dissipation platform and the inclined surface of the connecting arm cooperate with each other, so that the pressing sheet moves transversely towards the front amplifier board chip of the front amplifier board with the change of its own insertion depth. ​ 2. The sonar according to claim 1, wherein the fixed cover has a positioning groove formed by being recessed from one side of the mounting groove, and the transmitting array has a positioning protrusion formed at the bottom of the transmitting array, the positioning protrusion of the transmitting array extending into the positioning groove of the fixed cover when a portion of the transmitting array is sunk into the mounting groove of the fixed cover.

3. The sonar according to claim 2, wherein the positioning groove of the fixed cover is slightly larger in size than the positioning protrusion of the transmitting array.

4. The sonar according to claim 2, wherein the fixed cover has a ring body and a baffle plate at the back and front of the mounting groove respectively, the ring body being wrapped around the top of the front panel, the vulcanized portion being formed inside the ring body, and the baffle plate being shaped and sized to match the shape and size of the portion of the transmitting array that is not sunk into the mounting groove of the fixed cover.

5. The sonar according to claim 1, wherein the water-tight terminal extends at an acute angle with the height direction of the sonar.

6. The sonar according to claim 5, wherein the acute angle between the extension direction of the water-tight terminal and the height direction of the sonar is in the range of 15°-30°.

7. The sonar according to any one of claims 1-6, wherein the front panel has two front panel chips arranged at a distance from each other along the width direction of the front panel, the fixed cover has two downwardly extending heat dissipation platforms at the edges of the first cover body perforation, the two front panel chips of the front panel and the two heat dissipation platforms of the fixed cover correspond to each other in the horizontal direction, and the compression unit includes two insertion pieces symmetrically arranged at opposite ends of the connecting arm, the connecting arm being mounted to the fixed cover, and the two insertion pieces being inserted and held in the space between the two front panel chips of the front panel and the two heat dissipation platforms of the fixed cover by the connecting arm.

8. The sonar according to any one of claims 1-6, wherein the fixed cover has at least one second threaded hole, the connecting arm has at least one second screw hole, the second screw hole of the connecting arm and the second threaded hole of the fixed cover correspond to each other, and the threaded end of a screw is screwed into the second threaded hole of the fixed cover after passing through the second screw hole of the connecting arm.

9. The sonar according to claim 7, wherein the transceiver array unit includes at least one array body heat conduction piece, the top of the array body heat conduction piece being attached to at least one front panel chip of the front panel and being wrapped by the vulcanized portion, and the bottom of the array body heat conduction piece extending to the fixed cover.

10. The sonar according to any one of claims 1-6, wherein there is heat conductive silicone grease between the front panel chip of the front panel and the insertion piece.

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