High polymer detachable see-through anti-pollution anti-arcing insulator

Abstract

A kind of high polymer detachable anti-fouling arc-proof insulator, comprising insulator body, cap-shaped transparent insulation isolation cover, insulation fixing sleeve three detachable components.The top end of insulator body is provided with single-line straight thread and square buckle, and the lower end is arranged with multiple annular protrusions and grooves to extend the creepage distance;The transparent isolation cover is provided with assembly through hole and matching square clamping groove in the center, and fixed bolt holes are opened at the edge;The insulation fixing sleeve is provided with butt joint thread and clamping groove inside, and anti-skid groove is provided at the bottom end and high-voltage line connection hole is reserved at the top end.The utility model adopts transparent isolation structure to directly observe the internal working condition, and the detachable thread buckle assembly is convenient to disassemble and maintain;The overall high-voltage connection end is covered to block oil and dust, and the creepage structure is lengthened to suppress arc discharge, which is suitable for oil fume purification high-voltage electric field insulation scene.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage insulators for oil fume purification, specifically to a polymer detachable, transparent, anti-fouling, and anti-arc-stretching insulator. Background Technology

[0002] In kitchen fume purifiers, insulators play a crucial role. They are almost indispensable for purifying restaurant fumes. When high-voltage electricity is input into the fume purifier, the insulators can introduce the high voltage generated by the transformer into the electric field. Once the electric field is installed inside the fume purifier, it can automatically connect to the high voltage. And when the electric field is removed, it can automatically disconnect from the high voltage.

[0003] In existing high-voltage insulator structures for fume purification, the high-voltage terminals are mostly open, exposed to the air for extended periods. During daily operation, oil, dust, and other contaminants inevitably accumulate on the insulators. Insulators with dirty or damaged surfaces are highly susceptible to charge concentration and arcing under excessively high electric field strength, leading to discharge, reducing the insulator's insulation strength, and affecting its use. More seriously, if the insulator leaks current, the entire high-voltage electric field within the purifier cannot be established. When high-voltage electricity is released to the outside through the leaking insulator, it poses a certain safety hazard.

[0004] Most existing designs use closed and opaque materials, making it impossible to directly observe the working status of the electric field. When the electric field is malfunctioning, it is necessary to open the distribution box door for inspection. However, before opening the door, the electric field must be de-energized and in a non-working state. Therefore, every time a problem with the electric field is checked, it must be disassembled and placed outside to be exposed to high voltage for observation. Such maintenance is very cumbersome and inconvenient. Summary of the Invention

[0005] The purpose of this utility model is to provide a transparent, anti-fouling, and anti-arc-stretch insulator to solve the problems that affect the use of insulators during use, such as the reduction of insulation strength and inconvenience of maintenance due to the adhesion of oil, dust and other dirt to the surface of the insulator.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a transparent, anti-pollution, and anti-arctic insulator, comprising an insulator body. The insulator includes an insulator body, a cap-shaped transparent insulating cover, and an insulating fixing sleeve. The cap-shaped transparent insulating cover is fixedly assembled at the top of the insulator body. The cap-shaped transparent insulating cover is fixedly connected to the insulating fixing sleeve through a through hole at the top. The insulator body has a square buckle on the lower side of the outer periphery thread. The cap-shaped transparent insulating cover has a corresponding square groove on the inner side of the through hole. The cap-shaped transparent insulating cover has bolt holes on the outer periphery edge. The top periphery of the insulator body has a single straight thread. The bottom inner side of the insulating fixing sleeve has a thread. The bottom inner side of the insulating fixing sleeve has a snap-fit ​​groove under the thread. The bottom outer periphery of the insulating fixing sleeve has a vertical anti-slip groove. The top of the insulating fixing sleeve has a high-voltage line connection hole.

[0007] As a further description of the above technical solution: The insulator body is made of urea-formaldehyde resin.

[0008] As a further description of the above technical solution: The single-threaded straight thread is provided on the outer periphery of the top of the insulator body.

[0009] The single-threaded straight thread is provided on the outer periphery of the top of the insulator body.

[0010] As a further description of the above technical solution: The square buckle is located on the underside of the single-line straight thread on the outer periphery of the insulator body.

[0011] As a further description of the above technical solution: The cap-shaped transparent insulating shield is made of polycarbonate.

[0012] As a further description of the above technical solution: The assembly through-hole is located at the top center of the cap-shaped transparent isolation cover and has a diameter of 37 mm.

[0013] As a further description of the above technical solution: The square groove is located inside the assembly through hole.

[0014] As a further description of the above technical solution: The bolt holes are located on the outer periphery of the transparent insulating shield.

[0015] As a further description of the above technical solution: The vertical projection distance from the center of the top assembly through hole of the cap-shaped transparent insulating shield to the center of the bottom circle is 22mm.

[0016] As a further description of the above technical solution: The insulating fixing sleeve is made of polypropylene.

[0017] As a further description of the above technical solution: The inner thread is located on the inner side of the lower end of the insulating fixing sleeve.

[0018] As a further description of the above technical solution: The snap-fit ​​groove is located on the inner side of the bottom thread of the insulating fixing sleeve.

[0019] As a further description of the above technical solution: The vertical groove is provided on the outer periphery of the bottom end of the insulating fixing sleeve.

[0020] As a further description of the above technical solution: The high-voltage line wiring hole is located at the top of the insulating fixing sleeve.

[0021] The present invention has the following advantages: In this invention, by adding a cap-shaped transparent isolation cover and an insulating fixing sleeve to the outside of the top of the insulator, which was originally exposed to the environment, the difficulty of maintenance is greatly reduced, while achieving a good anti-pollution isolation effect. The number of annular protrusions at the lower end of the insulator body is increased to four, with a width of 3 mm. The current needs to cross the outer surface of three annular protrusions and two annular grooves, which greatly increases the creepage distance, significantly improves the anti-arc performance, and enhances the safety of use. This invention is worthy of widespread promotion. Attached Figure Description

[0022] 1. Figure 1 This is a schematic diagram of the transparent, anti-fouling, and anti-arc-stretching insulator proposed in this utility model; 2. Figure 2 This is a schematic diagram of the structure of the insulator body of the transparent anti-pollution and anti-arc insulator proposed in this utility model; 3. Figure 3 This is a schematic diagram of the structure of the cap-shaped transparent insulating cover for the transparent, anti-fouling, and anti-arc-stretching insulator proposed in this utility model; 4. Figure 4 This is a schematic diagram of the insulating fixing sleeve of the transparent, anti-fouling, and anti-arc-stretching insulator proposed in this utility model.

[0023] Legend: 1. Transparent, anti-fouling, and anti-arc-stretching insulator; 2. Insulator body; 3. Cap-shaped transparent insulating cover; 4. Insulating fixing sleeve; 5. Assembly through hole; 6. Annular groove; 7. Annular protrusion; 8. Bolt through hole; 9. High-voltage line connection hole; 10. Anti-slip groove; 11. Square buckle; 12. Snap-fit ​​groove; 13. Inner thread; 14. Outer thread. Detailed Implementation

[0024] The detailed embodiments of this utility model will be clearly and completely described with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper side," "lower side," "vertical," "top," "lower end," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, unless otherwise explicitly specified and limited, the terms "assembly," "fixing," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Referring to Figure 1, this utility model provides an embodiment: a transparent, anti-pollution, and anti-arc-stretch insulator, including an insulator body 1, the insulator body 1 including an insulator body 2, a cap-shaped transparent insulating cover 3, and an insulating fixing sleeve 4.

[0027] Referring to Figure 2, the top outer periphery of the insulator body 2 is provided with a raised single-threaded straight thread 14. Through the through hole at the top of the cap-shaped transparent insulating cover 3, the insulator body 2 is directly assembled and fixed to the insulating fixing sleeve 4. A square buckle 11 is provided in the middle of the outer periphery of the insulator body below the single-threaded straight thread, which can be assembled and fixed to the cap-shaped transparent insulating cover 3 to achieve good isolation and sealing. The insulator body 2 is made of a temperature-resistant insulating material, preferably urea-formaldehyde resin, which has advantages such as good insulation performance, excellent wear resistance, and low cost. It is easy to install and disassemble. At the same time, by tightening the thread to secure the insulating fixing sleeve 4, the high-voltage terminals exposed to the air can be completely isolated, and the anti-pollution and anti-high-voltage arcing effects are significant.

[0028] An annular groove 6 is provided on the lower outer periphery of the insulator body 2. An annular protrusion 7 is provided at both ends of the annular groove 6. When the current passes through the top outer surface of the insulator body 2 and is transmitted to the box door, it needs to cross three additional annular grooves 6 and four annular protrusions 7. The width of each annular protrusion 7 is set to 3 mm. The current needs to travel a longer distance, which greatly increases the difficulty of creepage and makes it safer to use.

[0029] Referring to Figure 3, the top center of the cap-shaped transparent insulating cover 3 has an assembly through hole 5, through which the insulator body 2 is assembled and fixed to the insulating fixing sleeve 4. The inner side of the top through hole of the cap-shaped transparent insulating cover 3 has a square slot 15, which is rotated to the square buckle 11 during assembly with the insulator body 2 to complete the assembly and fixation. The cap-shaped transparent insulating cover 3 is made of an insulating material with excellent stability, preferably polycarbonate, which can maintain good and constant electrical insulation over a wide range of temperature and humidity. Six bolt holes 8 are provided on the outer edge of the cap-shaped transparent insulating cover 3 to fix it to the equipment housing. Most existing designs are enclosed and opaque, making it impossible to directly observe the working status of the electric field. Whenever the electric field is not working properly, it is necessary to open the distribution box door for inspection. Due to structural design issues, the electric field must be de-energized and in a non-working state after the door is opened. Therefore, whenever a problem with the electric field is suspected, it must be disassembled and placed outside to be exposed to high voltage for observation. This method of troubleshooting is quite inconvenient. A transparent insulating cover can facilitate direct observation by maintenance personnel, which has the advantages of saving time and effort. Meanwhile, the vertical projection distance from the center of the top assembly through hole to the center of the bottom circle of the cap-shaped transparent insulating shield 3 is 22mm, which increases the effective safety distance and helps to avoid arcing.

[0030] Referring to Figure 4, the insulating fixing sleeve 4 has threads 13 on its inner side. It is assembled and fixed to the insulator body 2 through the through hole at the top of the cap-shaped transparent insulating cover 3. The insulating fixing sleeve 4 is made of a new type of insulating material, preferably polypropylene. Polypropylene has extremely strong electrical insulation properties, can withstand high long-term operating temperatures, and is thermoplastic and recyclable. Its structure has good toughness and good assembly sealing effect. In addition, polypropylene, as a general-purpose resin, has the advantages of large production volume and low price. The top of the insulating fixing sleeve 4 is provided with a high-voltage wire connection hole 9, through which the high-voltage wire passes into the interior of the insulator body 2. The bottom outer periphery of the insulating fixing sleeve 4 is provided with a vertical anti-slip groove 10, which facilitates the installation of the insulator body 2 and the insulating fixing sleeve 4, making the installation and fixing tighter and providing better installability.

[0031] The implementation principle of a transparent anti-pollution and anti-arc-stretch insulator according to an embodiment of this application is as follows: When assembling the transparent anti-pollution and anti-arc-stretch insulator, the top of the insulator body 2 can first be passed through the top through hole of the cap-shaped transparent insulating cover 3. The square slot 15 inside the top through hole 5 of the cap-shaped transparent insulating cover is rotated to the square buckle 11 of the insulator body, so that the side wall of the cap-shaped transparent insulating cover 3 is tightened and fixed to the insulator body 2. Then, the top of the insulator body 2 is inserted into the snap groove 12 of the insulating fixing sleeve 4, and the outer peripheral thread 14 of the top of the insulator body 2 is inserted into the inner thread 13 of the insulating fixing sleeve 4. By rotating the anti-slip groove 10, the insulator body 2 and the insulating fixing sleeve 4 are assembled and fixed. The insulating fixing sleeve 4 enables the high-voltage terminal exposed to the air to achieve a complete isolation effect, preventing external dust and moisture from adhering to the surface of the insulator body 2, thereby ensuring the insulation strength of the insulator body 2. Moreover, the internal buffer space of the insulating fixing sleeve 4 is large, which can quickly absorb the insulator body 2. The dissipated heat improves the heat dissipation performance of the anti-fouling and anti-arctic insulation. The above achieves the combined installation of the transparent anti-fouling and anti-arctic insulation device. Six bolts are used to pass through the six bolt holes 8 on the outer edge of the cap-shaped transparent insulating cover 3 to fix the anti-fouling and anti-arctic insulation to the oil fume purifier box. The high-voltage wire is connected through the high-voltage wire connection hole 9 at the top of the insulating fixing sleeve 4 to complete the device installation.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all variations made in accordance with the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A polymer detachable, transparent, anti-fouling, and anti-arctic insulator, characterized in that: The insulator includes an insulator body, a cap-shaped transparent insulating shield, and an insulating fixing sleeve. The top outer periphery of the insulator body is provided with a single straight thread, and a square buckle is provided below the single straight thread. The lower end of the insulator body is provided with several annular protrusions and annular grooves. The cap-shaped transparent insulating shield has an assembly through hole in the center, and a square slot matching the square buckle is provided on the inner side of the through hole. The outer edge of the shield has bolt through holes. The lower inner side of the insulating fixing sleeve is provided with an internal thread that mates with a single-wire straight thread, and a snap-fit ​​groove is provided below the internal thread. The outer periphery of the bottom end of the insulating fixing sleeve is provided with a vertical anti-slip groove, and the top end of the insulating fixing sleeve is provided with a high-voltage wire connection hole. The insulator body passes through the assembly through hole, and is positioned by engaging with the cap-shaped transparent insulating cover through square buckles and square slots. It can then be detachably assembled by tightening the single-threaded straight thread with the internal thread of the insulating fixing sleeve.

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