Waterproof and breathable protective mutual inductor

Abstract

The application discloses a waterproof and breathable protective mutual inductor, and relates to the technical field of protective mutual inductors. The waterproof and breathable protective mutual inductor comprises mutual inductors, the number of the mutual inductors is three, the outer wall of the mutual inductor is fixedly connected with fixing bolts, and the outer wall of the mutual inductor is fixedly connected with a fixing mechanism. The waterproof and breathable protective mutual inductor is provided with a unique fixing mechanism, a rotating shaft is driven by a motor, a fixing ring is rotated and pulled to be shrunk, and three mutual inductors are driven to be close to each other. The design can flexibly adjust the position and spacing of the mutual inductors according to the shape of the required fixing material, effectively solves the problem that it is difficult to effectively fix the protection due to different shapes of the material, avoids that the material is exposed, guarantees good ventilation performance, meanwhile, the outer walls of the insulating oil bag ring and the air bag ring are made of breathable elastic materials, the waterproof function is realized by effectively adhering to the material, and the ventilation effect is not affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective mutual inductors, in particular to a waterproof and breathable protective mutual inductor. BACKGROUND

[0002] A mutual inductor is an instrument for converting a large current or high voltage on a primary side into a small current or low voltage on a secondary side according to the principle of electromagnetic induction, and is divided into a voltage mutual inductor and a current mutual inductor. Its main function is to convert high voltage and large current into low voltage and small current, so as to facilitate the use of measurement, protection and control devices, to isolate the measurement instrument from high voltage and large current circuit, to ensure the safety of personnel and equipment, and to expand the instrument range, and is widely used in power systems, industrial automation and other fields. It is an important equipment indispensable in the power system, and the protective mutual inductor strengthens the protection function on the basis of the ordinary mutual inductor.

[0003] The patent application with the publication number CN110517852A discloses a mutual inductor with safety protection performance, which comprises a shell and an inner core. The inner core comprises a voltage coil. The shell comprises at least a coil sealing cavity for sealing and isolating the voltage coil and a wiring terminal part for wiring. The coil sealing cavity is filled with a first insulation sealing filler. The thickness of the first insulation sealing filler between the inner side wall of the coil sealing cavity and the voltage coil is greater than 5.5 mm. The wiring terminal part is provided with a terminal protection cover.

[0004] The above-mentioned patent uses a plastic shell of a flame-retardant material and adopts an epoxy resin pouring method to completely seal and fix the voltage coil, the iron core and the like in the plastic shell, which can maximize the isolation from the atmospheric environment. However, during the protection process, it is difficult to effectively protect the materials to be fixed due to different shapes of the materials to be fixed, resulting in exposure of the materials to be fixed. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a waterproof and breathable protective mutual inductor to solve the problems in the background art.

[0006] To achieve the above-mentioned purposes, the present application is implemented by the following technical scheme: a waterproof and breathable protective mutual inductor, comprising a mutual inductor, the number of the mutual inductors is three, the outer wall of the mutual inductor is fixedly connected with a fixing bolt, the outer wall of the mutual inductor is fixedly connected with a fixing mechanism, the mutual inductor is provided in three, which ensures good air permeability. At the same time, the outer walls of the insulating oil bag ring and the air bag ring are made of air-permeable elastic material, which realizes waterproof function while effectively adhering to the material, without affecting the air permeability effect, so that the protective mutual inductor can effectively prevent water during the protection process, and maintain good air permeability, meeting the actual use requirements.

[0007] The fixing mechanism comprises:

[0008] A fixing component is fixedly connected to the outer wall of the mutual inductor;

[0009] A fixing ring is clamped to the inner wall of the fixing component;

[0010] A mounting ring is fixedly connected to one end of the fixing ring, and the other end of the fixing ring is inserted into the mounting ring, the number of mutual inductors is three, the fixing component is arranged on the mutual inductor, then the fixing ring is clamped by the fixing component, one end of the fixing ring is fixed with the mounting ring, the other end of the fixing ring is inserted into the mounting ring, the motor is fixedly connected to the other end of the fixing ring through the rotating shaft, so that when the mutual inductor is placed at the required position, the rotating shaft drives the fixing ring to rotate and pull, and then the fixing ring is contracted, and the fixing ring drives the three mutual inductors to approach when it is contracted, and then the required position is protected;

[0011] A motor, the outer wall of the motor is rotatably connected with a rotating shaft, and the outer wall of the rotating shaft is fixedly connected with the other end of the fixing ring;

[0012] The outer wall of the mutual inductor is fixedly connected with a protection assembly, a unique fixing mechanism is arranged, the rotating shaft is driven by the motor to rotate and pull the fixing ring to contract, and the three mutual inductors are driven to approach, the design can flexibly adjust the position and distance of the mutual inductor according to the shape of the required fixed material, effectively solves the problem that it is difficult to effectively fix and protect due to different shapes of materials, and avoids that the material is exposed.

[0013] Preferably, the outer wall of the motor is fixedly connected to the outer wall of one of the mutual inductors.

[0014] Preferably, the protection assembly is a first protection mechanism, in embodiment one, the first protection mechanism adopts an air bag ring, when the three mutual inductors are contracted and press the air bag ring, the one-way electromagnetic valve prevents the gas from leaking out, the air bag ring can deform according to the shape of the material, after being electrified, the fan sucks air flow to the air bag ring, so that the air bag ring is further inflated to fit the material, ensuring all-around close protection, greatly improving the protection effect, and preventing the material from being exposed due to improper protection.

[0015] Preferably, the first protection mechanism comprises an air bag ring, the three mutual inductors press the air bag ring in the inside when they are contracted, the one-way electromagnetic valve is one-way, so it prevents the gas in the air bag ring from leaking out, then the air bag ring presses the fitted material to deform in combination with the shape of the material to be protected, the fan and the one-way electromagnetic valve are provided with an electrification port, then the fan and the one-way electromagnetic valve are electrified, the fan is started to suck air flow into the air bag ring, the air bag ring is inflated to further fit the required material, the one-way electromagnetic valve is one-way, preventing air flow from being discharged, the air bag ring is fixedly connected to the inner wall of the mutual inductor, and the outer wall of the air bag ring is fixedly connected with the fan.

[0016] Preferably, a connecting pipe is fixedly connected between the air bag ring and the fan, and the fan is fixedly connected to the outer wall of the mutual inductor through a support.

[0017] Preferably, a one-way electromagnetic valve is fixedly connected to the outer wall of the fan.

[0018] Preferably, the protection assembly is a second protection mechanism.

[0019] Preferably, the second protection mechanism comprises an insulating oil bag ring, the insulating oil bag ring is fixedly connected to the inner wall of the mutual inductor, the outer wall of the insulating oil bag ring is fixedly connected with a residual bin, the outer wall of the residual bin is fixedly connected with a pressing plate, the second protection mechanism in Embodiment Two utilizes the insulating oil bag ring, when the three mutual inductors shrink and extrude the insulating oil bag ring, the insulating oil in the insulating oil bag ring enters the residual bin through the tortuous pipe due to the incompressibility, the residual bin is bulged to drive the spring to stretch, the spring elasticity extrudes the residual bin, and the insulating oil bag ring is self-adapted to deform according to the shape of the material to tightly fit the material, thereby solving the protection problem caused by the shape difference of the material and ensuring the safety of the material.

[0020] Preferably, a tortuous pipe is fixedly connected between the insulating oil bag ring and the residual bin, and a spring is fixedly connected between the pressing plate and the outer wall of the mutual inductor, when the three mutual inductors shrink, the insulating oil bag ring inside the mutual inductor is extruded, the insulating oil in the insulating oil bag ring is extruded and discharged due to the extrusion of the insulating oil bag ring, then the insulating oil in the insulating oil bag ring enters the residual bin through the tortuous pipe due to the incompressibility of the insulating oil, when the insulating oil in the insulating oil bag ring enters the residual bin, the bulging of the residual bin drives the elastic stretching of the spring, and then the spring extrudes the residual bin under its own elasticity, and then the insulating oil bag ring deforms according to the shape of the required protection material.

[0021] The application provides a waterproof and breathable type protection mutual inductor.

[0022] 1. The waterproof and breathable type protection mutual inductor is provided with a unique fixing mechanism, a rotating shaft is driven by a motor to rotate and pull to shrink, and three mutual inductors are driven to approach, the position and distance of the mutual inductors can be flexibly adjusted according to the shape of the required fixed material, the problem that the mutual inductors are difficult to be effectively fixed and protected due to the shape difference of the material is solved, and the material is prevented from being exposed.

[0023] 2. In this waterproof and breathable protective transformer, the first protective mechanism in Embodiment 1 uses an airbag ring. When the three transformers contract and compress the airbag ring, the one-way solenoid valve prevents gas leakage. The airbag ring can deform according to the material shape. After being energized, the fan draws airflow into the airbag ring, causing it to further inflate and adhere to the material, ensuring all-round tight protection, greatly improving the protective effect, and preventing the material from being exposed due to improper protection.

[0024] 3. This waterproof and breathable protective transformer utilizes the insulating oil bladder ring in the second protective mechanism of Embodiment 2. When the three transformers contract and compress the insulating oil bladder ring, the insulating oil in the insulating oil bladder ring, due to its incompressibility, enters the residual chamber through the tortuous tube. The residual chamber bulges, causing the spring to stretch. The elasticity of the spring then compresses the residual chamber, causing the insulating oil bladder ring to adapt to the material shape and fit tightly against the material. This solves the protection problem caused by the difference in material shape and ensures material safety.

[0025] 4. This waterproof and breathable protective transformer has three transformers to ensure good breathability. At the same time, the outer walls of the insulating oil ring and the air ring are made of breathable elastic material. While effectively adhering to the material to achieve waterproof function, it does not affect the breathability. This allows the protective transformer to be both effectively waterproof and maintain good breathability during the protection process, meeting the actual use requirements. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the axial three-dimensional structure of the present invention;

[0027] Figure 2 This is a partial structural diagram of the fixing mechanism of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A in the middle;

[0030] Figure 5 This is a schematic diagram of a partial structure of the airbag ring of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B;

[0033] Figure 8 This is a partial structural diagram of the insulating oil bladder ring of the present invention.

[0034] In the figure: 1, mutual inductor; 2, fixing bolt; 3, fixing mechanism; 31, fixing component; 32, fixing ring; 33, mounting ring; 34, rotating shaft; 35, motor; 4, first protection mechanism; 41, air bag ring; 42, support; 43, fan; 44, one-way electromagnetic valve; 45, connecting pipe; 5, second protection mechanism; 51, spring; 52, pressing plate; 53, residual bin; 54, zigzag pipe; 55, insulating oil bag ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0036] Examples of the described embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0037] Embodiment one, please refer to Figures 1-6 The present application provides a technical solution: a waterproof and breathable type protective mutual inductor, comprising mutual inductors 1, the number of mutual inductors 1 is three, the outer wall of the mutual inductor 1 is fixedly connected with the fixing bolt 2, the outer wall of the mutual inductor 1 is fixedly connected with the fixing mechanism 3;

[0038] The fixing mechanism 3 comprises:

[0039] The fixing component 31 is fixedly connected to the outer wall of the mutual inductor 1;

[0040] The fixing ring 32 is clamped to the inner wall of the fixing component 31;

[0041] The mounting ring 33 is fixedly connected to one end of the fixing ring 32, and the other end of the fixing ring 32 is inserted into the mounting ring 33;

[0042] The motor 35 is rotatably connected with the rotating shaft 34 on the outer wall of the motor 35, and the outer wall of the rotating shaft 34 is fixedly connected with the other end of the fixing ring 32;

[0043] The outer wall of the motor 35 is fixedly connected to the outer wall of one of the mutual inductors 1;

[0044] The outer wall of the motor 35 is fixedly connected to the outer wall of one of the mutual inductors 1;

[0045] The number of the mutual inductors 1 is three, the fixed component 31 is arranged on the mutual inductor 1, then the fixed ring 32 is clamped by the fixed component 31, one end of the fixed ring 32 is fixed with the mounting ring 33, the other end of the fixed ring 32 is inserted in the mounting ring 33, the motor 35 is fixedly connected with the other end of the fixed ring 32 through the rotating shaft 34, so when the mutual inductor 1 is placed at the required position, the rotating shaft 34 drives the fixed ring 32 to rotate and pull, and then the fixed ring 32 is contracted, and the fixed ring 32 drives the three mutual inductors 1 to approach when being contracted, and then the required position is protected.

[0046] The protection assembly is the first protection mechanism 4.

[0047] The first protection mechanism 4 comprises the air bag ring 41, the air bag ring 41 is fixedly connected to the inner wall of the mutual inductor 1, and the outer wall of the air bag ring 41 is fixedly connected with the fan 43.

[0048] The connecting pipe 45 is fixedly connected between the air bag ring 41 and the fan 43, and the fan 43 is fixedly connected to the outer wall of the mutual inductor 1 through the support 42.

[0049] The outer wall of the fan 43 is fixedly connected with the one-way electromagnetic valve 44;

[0050] The three mutual inductors 1 are extruded to the air bag ring 41 inside when being contracted, the one-way electromagnetic valve 44 is one-way, so that the gas in the air bag ring 41 is prevented from leaking out, then the air bag ring 41 extrudes the material to be attached, and is deformed in combination with the shape of the material to be protected, the fan 43 and the one-way electromagnetic valve 44 are provided with an energizing port, then the fan 43 and the one-way electromagnetic valve 44 are energized, the fan 43 is started to suck air flow into the air bag ring 41, the air bag ring 41 is inflated to further attach the required material, and the one-way electromagnetic valve 44 is one-way to prevent air flow from being discharged;

[0051] When the mutual inductor 1 is subsequently removed, the energization of the one-way electromagnetic valve 44 can control the one-way electromagnetic valve 44 to be reversed, and then the air flow in the air bag ring 41 is discharged.

[0052] Embodiment two, please refer to Figures 1-8 The application provides a technical scheme: a waterproof and breathable type protection mutual inductor, comprising mutual inductors 1, the number of the mutual inductors 1 is three, the outer wall of the mutual inductor 1 is fixedly connected with fixed bolts 2, and the outer wall of the mutual inductor 1 is fixedly connected with a fixed mechanism 3.

[0053] The fixed mechanism 3 comprises:

[0054] The fixed component 31 is fixedly connected to the outer wall of the mutual inductor 1;

[0055] The fixed ring 32 is clamped to the inner wall of the fixed component 31;

[0056] The mounting ring 33 is fixedly connected to one end of the fixed ring 32, and the other end of the fixed ring 32 is inserted into the mounting ring 33;

[0057] The motor 35 is fixedly connected to the other end of the fixed ring 32 through the rotating shaft 34.

[0058] The outer wall of the transformer 1 is fixedly connected with the protection assembly;

[0059] The number of the transformer 1 is three, and the fixed component 31 is arranged on the transformer 1. The fixed ring 32 is clamped through the fixed component 31. One end of the fixed ring 32 is fixed with the mounting ring 33, and the other end of the fixed ring 32 is inserted into the mounting ring 33. The motor 35 is fixedly connected to the other end of the fixed ring 32 through the rotating shaft 34. Therefore, when the transformer 1 is placed at a required position, the rotating shaft 34 drives the fixed ring 32 to rotate and pull, so that the fixed ring 32 is contracted, and the three transformers 1 are driven to be close to each other, thereby protecting the required position.

[0060] The outer wall of the motor 35 is fixedly connected to the outer wall of one of the transformers 1.

[0061] The protection assembly is the second protection mechanism 5.

[0062] The second protection mechanism 5 comprises an insulating oil bag ring 55, which is fixedly connected to the inner wall of the transformer 1. The outer wall of the insulating oil bag ring 55 is fixedly connected with a residual storage bin 53, and the outer wall of the residual storage bin 53 is fixedly connected with a pressing plate 52.

[0063] The insulating oil can be insulating transformer oil, silicone oil, n-hexane, insulating mineral oil or synthetic ester, as long as it is insulating and liquid. Preferably, insulating transformer oil is used because it is more common and has modified rapeseed oil and soybean oil as insulating transformer oil, which is more environmentally friendly.

[0064] The insulating oil bag ring 55 and the residual storage bin 53 are fixedly connected with a zigzag pipe 54, and the pressing plate 52 and the outer wall of the transformer 1 are fixedly connected with a spring 51.

[0065] When the three transformers 1 are contracted, the insulating oil bag ring 55 inside the three transformers 1 is extruded. When the insulating oil bag ring 55 is extruded, the insulating oil in the insulating oil bag ring 55 is extruded and discharged. Due to the incompressibility of the insulating oil, the insulating oil in the insulating oil bag ring 55 enters the residual storage bin 53 through the zigzag pipe 54. When the insulating oil in the insulating oil bag ring 55 enters the residual storage bin 53, the spring 51 is elastically stretched by the bulging of the residual storage bin 53, so that the spring 51 extrudes the residual storage bin 53 under its own elasticity, and the insulating oil bag ring 55 is deformed according to the shape of the required protection material.

[0066] The transformer 1 is provided with three, so can be well ventilated, the outer wall of the insulating oil ring 55 and the air ring 41 is a breathable elastic material;

[0067] The effective fit of the insulating oil ring 55 and the air ring 41, and further effectively prevent water.

[0068] The above, only for the preferred embodiment of the present application, but the scope of protection of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range disclosed by the present application, according to the technical scheme of the present application and the invention concept of the invention are equivalent to replace or change, should be covered in the scope of protection of the present application.

Claims

1. A waterproof and breathable protective current transformer, comprising a current transformer (1), characterized in that: The number of current transformers (1) is three. The outer wall of the current transformer (1) is fixedly connected with fixing bolts (2) and fixing mechanism (3). The fixing mechanism (3) includes: A fixing component (31) is fixedly connected to the outer wall of the transformer (1); A retaining ring (32) is engaged with the inner wall of the retaining component (31); Mounting ring (33), which is fixedly connected to one end of fixing ring (32), and the other end of fixing ring (32) is inserted into mounting ring (33); The motor (35) has a rotating shaft (34) rotatably connected to its outer wall, and the outer wall of the rotating shaft (34) is fixedly connected to the other end of the fixing ring (32). The outer wall of the current transformer (1) is fixedly connected with a protective component; The outer wall of the motor (35) is fixedly connected to the outer wall of one of the current transformers (1); The protective assembly includes a first protective mechanism (4); the first protective mechanism (4) includes an airbag ring (41), the airbag ring (41) is fixedly connected to the inner wall of the current transformer (1), and a fan (43) is fixedly connected to the outer wall of the airbag ring (41). A connecting pipe (45) is fixedly connected between the airbag ring (41) and the fan (43), and the fan (43) is fixedly connected to the outer wall of the transformer (1) by a bracket (42); A one-way solenoid valve (44) is fixedly connected to the outer wall of the fan (43). The protective assembly includes a second protective mechanism (5); the second protective mechanism (5) includes an insulating oil bladder ring (55), the insulating oil bladder ring (55) is fixedly connected to the inner wall of the transformer (1), the outer wall of the insulating oil bladder ring (55) is fixedly connected to a residual chamber (53), and the outer wall of the residual chamber (53) is fixedly connected to a lower pressure plate (52). A tortuous tube (54) is fixedly connected between the insulating oil bladder ring (55) and the residual chamber (53), and a spring (51) is fixedly connected between the lower pressure plate (52) and the outer wall of the transformer (1).

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