An automatic shorting switch for full ocean depth underwater equipment

Abstract

The utility model discloses an ocean engineering and underwater robot technology, aims at providing a kind of full-sea depth underwater equipment automatic short-circuit switch, its technical solution main point is including short-circuit switch body, this short-circuit switch body includes: casing, with equipment fixed connection and is used to ensure the insulation performance between normal and equipment ground return circuit;Conductor, from the casing first end through setting in casing is used to contact seawater to reach the effect of conductivity and depth water pressure resistance;Electric plug pin, from the casing tail end through setting in casing and with conductor screw connection form internal encapsulation's single-core electrical passage is used for automatically triggering short-circuit signal;When using, through seawater and titanium alloy conductor contact, to reach the purpose of electric plug pin short-circuit;The utility model has the advantages of simple structure, convenient manufacturing, simple operation, avoid the defects in the prior art, suitable for popularization and implementation application;The utility model is suitable for ocean engineering and underwater robot technical field.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ocean engineering and underwater robot technology, more specifically, it relates to a full-sea-depth underwater equipment automatic short-circuit switch. BACKGROUND

[0002] Full-sea-depth underwater equipment automatic short-circuit switch is a switch device specially designed for deep-sea environment, used to automatically cut off the circuit under certain conditions to protect the equipment from electrical faults such as short circuit. This switch needs to be able to work stably under extreme water pressure, temperature, salinity and other conditions, and has high reliability and durability.

[0003] The current underwater short-circuit switch has poor corrosion resistance, poor waterproof performance, and poor reliability, which brings inconvenience to underwater operations. Therefore, a full-sea-depth underwater equipment automatic short-circuit switch with good corrosion resistance, good waterproof performance, and high reliability is needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a full-sea-depth underwater equipment automatic short-circuit switch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a full-sea-depth underwater equipment automatic short-circuit switch, comprising a short-circuit switch body, the short-circuit switch body comprising:

[0006] The shell is fixedly connected with the device and is used to ensure the insulation performance between the device and the ground loop under normal conditions;

[0007] The conductor is arranged in the shell from the first end of the shell to the tail end of the shell to contact seawater, thereby achieving the effects of electrical conductivity and deep water pressure resistance;

[0008] The electrical plug pin is arranged in the shell from the tail end of the shell and is threadedly connected with the conductor to form a single-core electrical path for automatically triggering a short-circuit signal;

[0009] The ratio of the length of the maximum diameter of the first end of the shell to the length of the maximum diameter of the first end of the conductor is 2-3.

[0010] The utility model is further provided: the shell is externally provided with a plurality of dismounting sealing grooves for fixed connection with the device; the shell is made of non-metallic PEEK material.

[0011] The utility model is further provided: a sealing structure is arranged between the conductor and the shell for preventing moisture from penetrating into the internal structure, the sealing structure comprising a plurality of annular sealing grooves opened on the side of the conductor, and a sealing ring is arranged in the annular sealing groove; the conductor is made of titanium alloy material.

[0012] The utility model further sets up: the electric plug pin adopts brass material to make, the electric plug pin with the conductor adopts the mode of screw thread installation convenient to dismount and can improve the conductivity efficiency and signal sensitivity simultaneously, the structure of electric plug pin can select different diameter and insulation thickness according to actual need, to adapt to different high voltage and large current environment.

[0013] The utility model further sets up: the conductor and electric plug pin all are T-shaped, to ensure that the conductor and shell, electric plug pin and shell form the effect of end face sealing after assembling.

[0014] The utility model further sets up: the mechanical life of short circuit switch body is not less than 500 times, the working temperature range is -30 DEG C to +80 DEG C, the load capacity is 10A, the medium withstand voltage is 2500Vdc, the hydrostatic pressure is 127MPa, and the insulation resistance is under normal condition ≥1000MΩ.

[0015] The utility model has the advantages of:

[0016] 1. Compared with prior art, the utility model discloses an automatic short circuit switch of full-sea-depth underwater equipment, which adopts high-performance non-metal PEEK material as the shell, and has excellent corrosion resistance. The chemical stability of PEEK material in marine environment enables it to effectively resist the corrosion of various corrosive substances in seawater, ensuring that the equipment is not prone to aging or failure during long-term use. In addition, the conductor part is made of titanium alloy material, which has good corrosion resistance and can maintain good electrical conductivity and mechanical strength in high-salinity seawater environment. Therefore, the corrosion resistance of the short circuit switch not only prolongs its service life, but also ensures its reliability and safety in harsh environments, making it an ideal choice for deep-sea operations. The structure design changes the short circuit loop, realizing single-core electrical path grounding short circuit through seawater environment, making the product reliable in full-sea-depth performance, and realizing automatic short circuit signal when entering water.

[0017] 2. The utility model discloses an automatic short circuit switch of full-sea-depth underwater equipment, which realizes the absolute isolation between internal elements and external environment through precise design of sealing structure. The annular sealing groove and sealing ring between the conductor and the shell can effectively prevent seawater from penetrating into the interior, avoid short circuit or failure caused by damp of electrical elements, and at the same time, the threaded connection design of electric plug pin and conductor not only enhances the stability of contact, but also ensures good sealing effect, showing excellent waterproofness. This feature greatly improves the reliability of the equipment during deep-sea operation, ensuring that it can work normally under extreme conditions and avoid equipment damage caused by water intrusion.

[0018] 3. The utility model discloses a special design shell and conductor material have very high deep water pressure capacity, this design makes short circuit switch can work stably in deep sea environment, reduces the security risk that causes the equipment failure to promote the reliability of equipment greatly, the electric plug pin is connected with the conductor with the screw thread, this structure is convenient to dismount, improves conductivity efficiency and signal sensitivity significantly, simultaneously, the material of electric plug pin selects brass, makes it have excellent conductivity and wear resistance.

[0019] 4. The utility model discloses simple and reasonable structure, convenient to manufacture, easy operation avoids the defects in the prior art, is suitable for promoting implementation application. DRAWINGS

[0020] Fig. 1 It is the structure diagram of the automatic short circuit switch of full-sea deep underwater equipment of the utility model.

[0021] Fig. 2 It is the sectional structure diagram of the automatic short circuit switch of full-sea deep underwater equipment of the utility model.

[0022] Figs. 1-2 Reference Signs: 1, shell, 2, conductor, 3, electric plug pin, 4, dismounting sealing groove, 5, annular sealing groove. SPECIFIC EMBODIMENT

[0023] REFERENCE Figs. 1-2 The embodiment of the automatic short circuit switch of full-sea deep underwater equipment of the utility model is further explained.

[0024] For easy description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe one element or feature's relationship to another element or feature as illustrated in the drawings. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or located in any other orientation) and the spatially relative terms used herein interpreted accordingly.

[0025] Moreover, relative terms such as "first" and "second" are used merely to differentiate one component from another, rather than to denote any inherent relationship or order between or among the components.

[0026] Figs. 1-2 The automatic short circuit switch of full-sea deep underwater equipment shown comprises a short circuit switch body, and the short circuit switch body comprises:

[0027] The shell 1 is fixedly connected with the equipment and is used for ensuring the insulation performance between the equipment and the ground circuit in normal state;

[0028] The conductor 2 is arranged in the shell 1 from the first end of the shell 1 and is used for contacting seawater, so as to achieve the effects of conducting electricity and resisting deep water pressure;

[0029] The electric plug pin 3 is arranged in the shell 1 from the tail end of the shell 1 and is threadedly connected with the conductor 2 to form a single-core electric passage which is internally encapsulated and is used for automatically triggering a short circuit signal;

[0030] The ratio of the length of the maximum diameter of the first end of the shell 1 to the length of the maximum diameter of the first end of the conductor 2 is 2-3; the reasonable ratio not only reduces the water flow resistance, but also reduces the movement resistance of the equipment in the underwater environment, so that the overall performance and efficiency of the equipment are improved; when the ratio is less than 2, the length of the maximum diameter of the first end of the conductor 2 is too large, the interference effect between the first end of the conductor 2 and the first end of the shell 1 is the same, and the manufacturing cost is increased; when the ratio is greater than 3, the length of the maximum diameter of the first end of the conductor 2 is too small, and the first end of the conductor 2 can be deformed to cause loosening due to the direct fastening of the electric plug pin 3 and the conductor 2 through thread connection with the increase of the use time; therefore, the ratio is preferably 2-3;

[0031] The shell 1 is externally provided with a plurality of dismounting sealing grooves 4 which are used for being fixedly connected with the equipment; the shell 1 is made of non-metal PEEK material;

[0032] The sealing structure is arranged between the conductor 2 and the shell 1 and is used for preventing water from penetrating into the internal structure, the sealing structure comprises a plurality of annular sealing grooves 5 which are arranged on the circumferential side of the conductor 2, and a sealing ring is arranged in the annular sealing groove 5; the conductor 2 is made of titanium alloy material;

[0033] The automatic short circuit switch of the full-sea-depth underwater equipment can ensure the absolute isolation between the internal elements and the external environment through the precisely designed sealing structure, the annular sealing groove 5 and the sealing ring which are arranged between the conductor 2 and the shell 1 can effectively prevent seawater from penetrating into the interior, avoid the short circuit or failure caused by the damp of the electrical elements, meanwhile, the threaded connection design of the electric plug pin 3 and the conductor 2 not only enhances the stability of the contact, but also ensures the good sealing effect, and the excellent waterproof performance is exhibited, the electric plug pin 3 is not directly exposed in the water, so that the overall performance of the product is ensured, the reliability of the equipment in the deep sea operation is greatly improved, the equipment can normally work under extreme conditions, and the equipment damage caused by the water invasion is avoided.

[0034] Compared with the prior art, the utility model discloses full-sea depth underwater equipment automatic short-circuit switch adopts high-performance nonmetal PEEK material as the shell 1, has outstanding corrosion resistance. The chemical stability of PEEK material in the marine environment makes it can effectively resist the erosion of various corrosive substances in seawater, ensures that the equipment is not easy to age or fail in the long-term use process, in addition, the conductor 2 part selects titanium alloy material, and it has good corrosion resistance, can keep good electric conductivity and mechanical strength in the high salinity seawater environment, therefore, the corrosion resistance of the short-circuit switch not only prolongs its service life, but also guarantees its reliability and safety in the harsh environment, makes it become the ideal choice of deep sea operation, adopt structural design mode change short-circuit loop, realize single-core electrical passage through seawater environment grounding short-circuit, make product resistant full-sea depth performance reliable, realize water automatic start short-circuit signal.

[0035] The electric plug pin 3 is made of brass material, and the electric plug pin 3 and the conductor 2 are installed in a threaded manner, which facilitates disassembly and can improve the electric conductivity efficiency and signal sensitivity; the structure of the electric plug pin 3 can be selected according to actual needs to have different diameters and insulation thicknesses to adapt to different high-voltage and large-current environments.

[0036] In the utility model, the shell 1 and the conductor 2 material are specially designed, have very high deep water pressure resistance, this design makes the short-circuit switch can work stably in deep sea environment, reduces the security risk caused by equipment failure, thereby greatly improves the reliability of the equipment, the electric plug pin 3 and the conductor 2 adopt threaded connection mode, this structure not only facilitates disassembly, but also significantly improves the electric conductivity efficiency and signal sensitivity, meanwhile, the material of the electric plug pin 3 is selected to be brass, so that it has excellent conductivity and wear resistance.

[0037] The conductor 2 and the electric plug pin 3 are both T-shaped to ensure that the conductor 2 and the shell 1 and the electric plug pin 3 and the shell 1 form end face sealing effect after assembly.

[0038] The short-circuit switch of the utility model fully considers functionality and practicality in design, uses T-shaped conductor 2 and electric plug pin 3 structure, so that effective end face sealing effect can be formed after assembly, this design not only improves the simplicity of assembly, but also enhances the structural integrity of the overall equipment, reduces potential failure points.

[0039] The mechanical life of the short-circuit switch body is not less than 500 times, the working temperature range is-30 DEG C to +80 DEG C, the load current is 10A, the medium withstand voltage is 2500Vdc, the hydrostatic pressure is 127MPa, and the insulation resistance is greater than or equal to 1000M omega under normal conditions.

[0040] The assembly method of the short-circuit switch body is as follows:

[0041] The sealing ring is installed into the annular sealing groove 5 of the conductor 2, then the tail end of the conductor 2 is inserted into the shell 1 from the head end of the shell 1 until the head end of the conductor 2 abuts against the head end of the shell 1, then the tail end of the electric plug pin 3 is inserted into the shell 1 from the tail end of the shell 1 and is rotationally fastened with the threaded hole of the tail end of the conductor 2 until the head end of the electric plug pin 3 abuts against the tail end of the shell 1, so that the short-circuit switch body is sealed and the waterproof performance is ensured; the assembled short-circuit switch body is subjected to comprehensive electrical performance test to ensure its reliability under extreme conditions; the assembled short-circuit switch body is subjected to voltage resistance test to ensure no electric leakage; after the voltage resistance test, the qualified short-circuit switch body is subjected to final appearance inspection and function test, and is packaged after being qualified.

[0042] In the production process of the short-circuit switch, strict electrical performance test and voltage resistance test are implemented, which include current-carrying capacity test, medium voltage resistance test and insulation resistance test, etc., so as to ensure that each product can work reliably under extreme conditions; the voltage resistance test step is detailed and normative, and includes strict requirements for test environment and data recording, so as to ensure the authenticity and reliability of test results. In use, the seawater contacts the titanium alloy conductor 2, so that the electric plug pin 3 is short-circuited; the short-circuit switch has simple and reasonable structure, is convenient to manufacture and operate, avoids the defects in the prior art, and is suitable for popularization and implementation.

[0043] The above only describes preferred embodiments of the short-circuit switch, and does not limit the short-circuit switch; the skilled in the art can make common changes and replacements within the technical scheme of the short-circuit switch, which should be included in the protection scope of the short-circuit switch.

Claims

1. An automatic shorting switch for full ocean depth underwater equipment, comprising: The short-circuit switch body comprises: A shell (1) fixedly connected with the device and used for ensuring the insulation performance between the device and the ground circuit in normal state; A conductor (2) penetratingly arranged in the shell (1) from the front end of the shell (1) and used for contacting seawater to achieve the effects of conducting electricity and resisting deep water pressure; An electric plug pin (3) penetratingly arranged in the shell (1) from the tail end of the shell (1) and threadedly connected with the conductor (2) to form a single-core electric passage for automatically triggering a short-circuit signal; The ratio of the length of the maximum diameter of the front end of the shell (1) to the length of the maximum diameter of the front end of the conductor (2) is 2-3.

2. An automatic shorting switch for full ocean depth underwater equipment according to claim 1, wherein, The shell (1) is externally provided with a plurality of dismounting sealing grooves (4) for fixedly connecting with the device; and the shell (1) is made of non-metal PEEK material.

3. An automatic shorting switch for subsea equipment throughout the water column according to claim 1, wherein, A sealing structure is arranged between the conductor (2) and the shell (1) for preventing moisture from penetrating into the internal structure, and the sealing structure comprises a plurality of annular sealing grooves (5) opened on the side of the conductor (2), and a sealing ring is arranged in each annular sealing groove (5); and the conductor (2) is made of titanium alloy material.

4. An automatic shorting switch for deep submergence equipment according to claim 1, wherein, The electric plug pin (3) is made of brass material, the electric plug pin (3) and the conductor (2) are threadedly mounted to facilitate dismounting and improve the electric conduction efficiency and signal sensitivity; and the structure of the electric plug pin (3) can be selected according to actual needs to have different diameters and insulation thicknesses to adapt to different high-voltage and large-current environments.

5. An automatic shorting switch for full ocean depth underwater equipment according to claim 1, wherein, The conductor (2) and the electric plug pin (3) are both in T shape to ensure that the conductor (2) and the shell (1) and the electric plug pin (3) and the shell (1) form end face sealing effects after assembly.

6. An automatic shorting switch for subsea equipment for full ocean depth according to any one of claims 1-5, characterized in that, The mechanical life of the short-circuit switch body is not less than 500 times, the working temperature range is -30℃ to +80℃, the load current is 10A, the medium withstand voltage is 2500Vdc, the hydrostatic pressure is 127MPa, and the insulation resistance is greater than or equal to 1000MΩ in normal state.

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