CN211740258U - Sensor packaging structure for underwater equipment and underwater equipment - Google Patents

Abstract

The application provides a sensor packaging structure for subsea equipment, includes: a sensor; the sensor is arranged in the packaging shell, the packaging shell comprises a first part and a second part, the equivalent diameter of the first part is larger than that of the second part at the adjacent position of the first part and the second part, and the outer surface of the free end of the second part is provided with threads; a lead wire hermetically connected to the sensor and drawn out from the second portion in a sealed manner; a nut engaged with the threads of the outer surface; and a seal ring disposed below the first portion. The packaging structure can realize wired connection between the underwater equipment and the sensor, can ensure the water tightness of the equipment, and simultaneously, the sensor is directly contacted with water to detect the underwater condition and transmit information.

Description

Sensor packaging structure for underwater equipment and underwater equipment

Technical Field

The application relates to the field of sensors, in particular to a sensor packaging structure for underwater equipment, and the underwater equipment with the sensor packaging structure.

Background

At present, along with the updating and upgrading of underwater equipment, the types of sensors in the underwater equipment are increased day by day, and the sensors are arranged to enable the underwater equipment to work more efficiently and accurately. At present, the connection mode of the commonly used underwater equipment sensor is complex, the cost is high, and an external structure is needed to carry out waterproof protection on the sensor and the connection position of the sensor and the underwater equipment. Simultaneously, the sensor still need with external environment direct contact, more accurate perception aquatic condition, transmission information.

The above information in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not constitute prior art that is known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The application provides a sensor packaging structure for underwater equipment. The structure is simple in structure, low in cost and good in waterproof performance.

According to an aspect of the present application, the sensor package structure includes: a sensor; the sensor is arranged in the packaging shell, the packaging shell comprises a first part and a second part, the equivalent diameter of the first part is larger than that of the second part at the adjacent position of the first part and the second part, and the outer surface of the free end of the second part is provided with threads; a lead wire hermetically connected to the sensor and drawn out from the second portion in a sealed manner; a nut engaged with the threads of the outer surface; and a seal ring disposed below the first portion.

According to some embodiments of the present application, the first portion of the package housing is provided with an internally threaded bore at a free end thereof.

According to some embodiments of the application, the sensor is disposed at the bottom of the internally threaded hole.

According to some embodiments of the present application, the sensor package structure further comprises a compression nut engaged with the internal threaded hole and abutting against the sensor upper surface.

According to some embodiments of the present application, the compression nut includes a channel that exposes the sensor. Leaving a passage for the sensor to be in contact with the external environment.

According to some embodiments of the present application, the package housing is made of a metal alloy material or a polymer material.

According to some embodiments of the present application, the compression nut is made of a metal alloy material or a polymer material.

According to some embodiments of the application, the second portion of the package housing includes a through hole communicated with the internal thread hole, the wire is led out through the through hole, and a glue pouring sealing layer is arranged in the through hole.

According to some embodiments of the present application, the potting layer comprises a polyurethane potting sealant layer.

According to some embodiments of the present application, the seal ring comprises a rubber seal ring or a metal gasket.

According to some embodiments of the application, the lower surface of the first portion has an annular groove for providing the sealing ring.

According to another aspect of the present application, there is also provided a subsea installation comprising: an equipment housing having a sensor opening; as described above, the second portion of the package housing of the sensor package structure passes through the opening and is fixed to the device housing by engagement of the nut of the sensor package structure with the second portion, wherein the seal ring of the sensor package structure is compressed between the first portion of the package housing of the sensor package structure and the device housing.

According to some embodiments of the application, the sealing ring is compressed between the sensor packaging structure body and the equipment shell after the nut is screwed down, so that a waterproof effect is achieved. In addition, the position of the internal transmission line is waterproof through the glue pouring sealing layer, and the sensor is fixed through the compression nut. The application provides a sensor packaging structure is simple, and water-proof effects is good, and convenient the dismantlement. When the sensor has a fault problem, the nut is unscrewed, and then the sensor can be detached. Compared with the prior art, the sensor packaging structure provided by the application also has the advantage of low cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

FIG. 1 illustrates a sensor package structure according to an example embodiment of the present application;

FIG. 2 illustrates a sensor package structure according to another example embodiment of the present application;

FIG. 3 illustrates a cross-sectional configuration of a sensor package in cooperation with a subsea equipment housing according to an exemplary embodiment of the present application;

FIG. 4 illustrates an outline of a sensor package and an underwater device according to an exemplary embodiment of the present application;

FIG. 5 illustrates a sensor package structure fabrication method according to an example embodiment of the present application;

list of reference numerals:

101 sensor

103A Package housing first part

103B encapsulating the second part of the housing

103 packaging shell

105 groove

107 wire

109 glue-pouring sealing layer

111 nut

113 sealing ring

115 through hole

205 compression nut

215 gland nut channel

303 equipment shell

305A device housing opening

305B device housing opening

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "straight," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following application provides many different embodiments or examples for implementing different features of the application. In order to simplify the application of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present application will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein only to illustrate and explain the present application and not to limit the present application.

At present, along with the upgrading and updating of underwater equipment, the application of various underwater sensors is more popular. Common underwater equipment sensors include water temperature sensors, water depth sensors, and flow rate sensors. The existing underwater equipment sensor connecting method is complex, high in cost and incapable of meeting the requirements of common equipment and low-cost entertainment equipment, and the existing underwater equipment sensor is not ideal in waterproof effect.

In view of the above-mentioned prior art defect, the application provides a packaging structure of underwater equipment sensor, can realize the wired connection between underwater equipment and the sensor to can guarantee underwater equipment and sensor water proofness, prevent that water from getting into the connection structure between underwater equipment and the sensor, the sensor effect is inefficacy. In addition, the sensor can be contacted with a water environment, the condition in water can be sensed more accurately, and information can be transmitted.

Fig. 1 illustrates a sensor package structure according to an example embodiment of the present application.

Referring to fig. 1, a sensor package structure according to an embodiment of the present application may include a sensor 101, a package housing 103, a lead 107, a nut 111, and a sealing ring 113.

Referring to fig. 1, in the sensor package structure, a sensor 101 is a main body to be protected by the package structure of the present application. In this embodiment, the sensor 101 may be, for example, a flow rate sensor, a temperature sensor, or a pressure sensor of the underwater device.

Referring to fig. 1, the sensor package structure has a package housing 103. According to this embodiment, the sensor 101 is arranged inside the encapsulating housing 103.

According to an example embodiment, referring to fig. 1, the package housing 103 may include a first portion 103A and a second portion 103B. At the adjoining portions of the first and second portions 103A, 103B, the equivalent diameter of the first portion 103A of the enclosure is greater than the equivalent diameter of the second portion 103B of the enclosure, which may help to compress the seal ring, as described in detail below.

According to an exemplary embodiment, referring to fig. 1, the lower surface of the first portion 103A has an annular groove 105 for providing said sealing ring.

According to an exemplary embodiment, referring to fig. 1, the outer surface of the free end of the second portion 103B of the enclosure housing is provided with a thread that can cooperate with a nut 111 to secure the sensor enclosure structure to, for example, a housing of an underwater device.

According to some embodiments, the package housing 103 may be made of a metal alloy material or a polymer material. For example, the package housing 103 may be integrally formed of an aluminum alloy by machining. The aluminum alloy package housing 103 may serve as an effective shell to protect the sensor 101.

Referring to fig. 1, the lead 107 is hermetically connected to the sensor 101 and leads from the second portion 103B of the package housing 103 in a hermetically sealed manner.

According to some embodiments, as shown in fig. 1, the package housing second portion 103B includes a through hole 115, and the lead 107 is led out from the through hole 115 in a sealed manner. For example, a glue-pouring sealing layer 109 is arranged in the through hole 115, and the glue-pouring sealing layer 109 seals the outlet of the through hole 115. The glue-pouring sealing layer 109 can completely isolate the sensitive part of the lead 107, which is contacted with the sensor 101, from the water environment, so as to achieve the purpose of sealing.

According to some embodiments, the potting sealant may include a polyurethane potting sealant. The polyurethane has the advantages of high temperature resistance, wear resistance, static electricity resistance, excellent waterproof performance, chemical corrosion resistance and good mechanical performance after curing.

Referring to fig. 1, nut 111 may be threadably engaged with the exterior surface of the second portion 103B of the enclosure. Thus, when the packaging structure is mounted to the underwater equipment housing, the entire structure can be fixed to the housing by the threaded engagement of the nut 111 with the outer surface of the packaging case 103B.

Referring to fig. 1, a seal ring 113 may be disposed below the package housing first portion 103A. When the packaging shell 103 is installed on underwater equipment, the sealing ring is compressed, so that the aim of sealing and waterproofing is fulfilled.

Through the threaded engagement of nut 111 and encapsulation shell second portion 103B surface, extrusion sealing washer 113 to reach sealed waterproof effect, protected the wire not with water direct contact, this kind of method is simple, and water-proof effects is good, and convenient the dismantlement. For example, with the sensor package structure according to the present embodiment, when a failure of the sensor is found, the sensor can be easily removed by unscrewing the nut 111.

As shown in fig. 1, the seal ring 113 includes a rubber seal ring or a metal gasket. According to an exemplary embodiment of the present disclosure, the material of the rubber sealing ring 113 may be Styrene Butadiene Rubber (SBR).

According to the sensor packaging structure of the embodiment, wired connection between underwater equipment and a sensor can be achieved, the water tightness of the equipment can be guaranteed, and equipment failure caused by water entering the equipment is prevented. Meanwhile, the sensor is in direct contact with water, so that the flow speed condition of the water can be sensed more accurately, and data can be transmitted.

FIG. 2 illustrates a sensor package structure according to another example embodiment of the present application.

Referring to fig. 2, in the sensor package structure, a sensor 101 is a main body of protection of the mounting structure of the present application. According to an example embodiment of the present application, a sensor includes: water temperature sensors, flow velocity sensors, water depth sensors, and the like.

In the present embodiment, the sensor 101 is a water temperature sensor of the underwater device.

Referring to fig. 2, the package housing 103 in the sensor package structure, according to the exemplary embodiment of the present application, the sensor 101 is disposed inside the package housing 103, and the package housing 103 includes a first portion 103A having an axial length of 5.5 mm and a second portion 103B having an axial length of 7 mm and a diameter of 6 mm. At the adjacent part of the first part 103A and the second part 103B, the equivalent diameter of the first part 103A of the enclosure is 10 mm greater than the equivalent diameter of the second part 103B by 6 mm, while the outer surface of the free end of the second part 103B is provided with a thread, the thread having a standard male thread size of 6M.

In this embodiment, the equivalent diameter of the first portion 103A of the package housing 103 is larger than the equivalent diameter of the second portion 103B, which is beneficial to generating a moment in the subsequent installation process, so that the thread of the second portion 103B of the package housing can be screwed into the corresponding threaded hole more easily.

As shown in fig. 2, according to an example embodiment of the present application, the encapsulation structure 103 may be made of a metal alloy material or a polymer material.

In the present embodiment, the package housing 103 is integrally formed by injection molding of PMMA (polymethyl methacrylate). PMMA is also called as acrylic and has the characteristics of high transparency, low price, easy machining and the like. The PMMA is light in weight, simple in forming process, capable of being produced in large scale and low in cost. Therefore, as the material of the package housing 103 in this embodiment, the requirements of the sensor package structure provided by the present application, such as simple structure, low cost, and good waterproof performance, are satisfied.

As shown in fig. 2, according to the present exemplary embodiment, the free end (i.e., the upper end) of the first portion 103A of the package housing 103 is provided with an internally threaded hole.

As shown in fig. 2, according to an exemplary embodiment of the present application, the sensor 101 is disposed at the bottom of the threaded hole in the package structure.

Referring to FIG. 2, in the sensor package, the package housing 103 further includes a compression nut 205 that engages the internal threads of the free end of the package housing 103 and presses against the upper surface of the sensor 101. According to some embodiments, the gland nut 205 includes a channel 215 structure, the channel 215 exposing the sensor 101 in order to leave the channel 215 where the sensor 101 is in contact with the external environment. The detection of many sensors needs to be in direct contact with a water body or corresponding environment, so that the sensors are connected with equipment, packaged and waterproof, and meanwhile, the sensors are guaranteed to work normally. In this embodiment, the sensor 101 is a water temperature sensor, and needs to be in direct contact with a water environment, and the two channels 215 are arranged on the gland nut 205, so that the channels 215 are provided for the contact between water and the sensor, and the water temperature sensor can accurately sense the conditions in water and feed back information.

As shown in fig. 2, the compression nut 205 may be made of a metal alloy material or a polymer material according to some example embodiments of the present application. In this embodiment, the gland nut 205 is made of PMMA, so that it can be matched with the package housing 103, and can be designed as a set of injection molding tools, and a set of injection molding system is set, so that the cost is reduced again, and the mass production is possible.

Referring to fig. 2, the lead 107 is hermetically connected to the sensor 101 and leads out from the second portion 103B of the package housing 103 in a hermetically sealed manner.

As shown in fig. 2, the second portion 103B of the package housing is connected to a through hole 115 of the internal threaded hole, the lead 107 is led out from the through hole 115, a sealant 109 is disposed in the through hole 115, and the sealant 109 seals the outlet of the through hole 115. The glue-pouring sealing layer 109 can completely isolate the sensitive part of the lead 107, which is contacted with the sensor 101, from the water environment, so as to achieve the purpose of sealing.

According to some embodiments, the potting seal comprises a polyurethane potting seal 109. The polyurethane has the advantages of high temperature resistance, wear resistance, static electricity resistance, excellent waterproof performance, chemical corrosion resistance and good mechanical performance after curing.

Referring to fig. 2, according to an exemplary embodiment, nut 111 may select a standard threaded bore M6 x 0.75 to engage threads on the outer surface of second portion 103B of the package housing.

Referring to fig. 2, a seal ring 113 is disposed below the first portion 103A of the package housing.

After the sensor packaging structure is fixed to underwater equipment, the sealing ring 113 is extruded between the shell and the second part 103B through the threaded engagement of the nut 111 and the outer surface of the second part 103B of the packaging shell, so that the sealing and waterproof effect is achieved, the wire is protected from being in direct contact with water, and the method is simple, good in waterproof effect and convenient to detach. For example, in the present embodiment, when a failure of the sensor is detected, the sensor can be easily removed by unscrewing the nut 111.

As shown in fig. 2, the seal ring 113 includes a rubber seal ring or a metal gasket. According to the exemplary embodiment of the present application, the material of the sealing ring 113 is silicon rubber, and the silicon rubber sealing ring 213 is a 0-type sealing ring (red).

Fig. 3 shows a cross-sectional structure of a sensor package structure according to an exemplary embodiment of the present application in cooperation with a subsea equipment housing. Fig. 4 shows an outline of a sensor package and an underwater device according to an exemplary embodiment of the present application.

Referring to fig. 3 and 4, a subsea installation is shown. According to an exemplary embodiment of the application, such an underwater device may be an underwater photography device or an underwater detection device. In this embodiment, the device case 303 of the underwater photographing device has a thickness of 3 mm in a portion thereof which is fitted with a sensor packaging structure, has an opening 305B predetermined for the sensor 101, and has a diameter of 6.1 mm. In the sensor package shown in fig. 3, the second portion 103B of the package housing 103 is inserted through the opening 305B and secured to the device housing 303 by the engagement of the nut 111 of the sensor package with the second portion 103B of the package housing, the device housing opening 305B having a diameter of 6.1 mm and the end and package housing having a portion 103A of the opening 305A having a diameter of 11 mm. Wherein the sealing ring 113 of the sensor package is compressed between the first part 103A of the package housing of the sensor package and the device housing 303.

A method for manufacturing a sensor package structure according to an exemplary embodiment of the present application is described in detail below with reference to fig. 5.

Referring to fig. 5, in S501, the sensor is placed in a package housing 103 of a matching size.

In S503, the lead is connected to the sensor. Alternatively, the sensor 101 with the leads 107 may be placed in the position shown in FIG. 2 with the leads 107 passing through the package housing.

In S505, the compression nut 205 is tightened with a straight screwdriver. Thus, the sensor 101 can be maintained in a relatively stable state in the package structure.

In S507, the lead is sealed from the free end lead outlet of the second portion 103B of the package housing to the inner can. In this embodiment, the potting adhesive is polyurethane. The colloid is compacted as much as possible, so that the joint of the lead and the sensor is completely wrapped by polyurethane, and the purpose of sealing is achieved.

In S509, the potting sealant 109 is obtained after the glue is cured.

When the sensor packaging structure is mounted on an underwater equipment shell, the nut is screwed down to enable the product body and the equipment shell to compress the sealing ring to achieve a waterproof effect, and the position of the internal transmission line is sealed through glue filling to prevent water. This packaging structure is simple, and water-proof effects is good, and convenient the dismantlement, if the sensor has a problem, unscrew the nut and can easily pull down the sensor. Compared with a complex structure on the market at present, the sensor packaging structure provided by the application has lower cost.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Finally, it should be noted that: although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (12)

1. A sensor package structure for an underwater device, comprising:

a sensor;

the sensor is arranged in the packaging shell, the packaging shell comprises a first part and a second part, the equivalent diameter of the first part is larger than that of the second part at the adjacent position of the first part and the second part, and the outer surface of the free end of the second part is provided with threads;

a lead wire hermetically connected to the sensor and drawn out from the second portion in a sealed manner;

a nut engaged with the threads of the outer surface;

and a seal ring disposed below the first portion.

2. The sensor package of claim 1, wherein the package housing first portion free end is provided with an internally threaded bore.

3. The sensor package structure of claim 2, wherein the sensor is disposed at the bottom of the internally threaded hole.

4. The sensor package of claim 2, further comprising a compression nut that engages the internally threaded bore and presses against the sensor upper surface.

5. The sensor packaging structure of claim 4, wherein the compression nut comprises a channel that exposes the sensor leaving a channel for the sensor to contact with an external environment.

6. The sensor package structure of claim 1, wherein the package housing is made of a metal alloy material or a polymer material.

7. The sensor package structure of claim 4, wherein the compression nut is made of a metal alloy material or a polymer material.

8. The sensor package structure of claim 2, wherein the second portion includes a through hole in communication with the internal threaded hole, the wire being routed through the through hole, and a potting sealant disposed within the through hole.

9. The sensor package structure of claim 8, wherein the potting sealant comprises a polyurethane potting sealant.

10. The sensor package of claim 1, wherein the seal ring comprises a rubber seal ring or a metal gasket.

11. The sensor package of claim 1, wherein the lower surface of the first portion has an annular groove for seating the sealing ring.

12. An underwater apparatus, comprising

An equipment housing having a sensor opening;

the sensor package of any one of claims 1-11, a second portion of a package housing of the sensor package passing through the opening and secured to the device housing by engagement of a nut of the sensor package with the second portion,

wherein the seal ring of the sensor package is compressed between the first portion of the package housing of the sensor package and the device housing.

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