CN212485038U

CN212485038U - Optical fiber insulator for transformer substation

Info

Publication number: CN212485038U
Application number: CN202021109018.2U
Authority: CN
Inventors: 沈林建; 陈和龙; 张汉清
Original assignee: Jiumei Fiber Glass Co ltd
Current assignee: Jiumei Fiber Glass Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-05
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses an optical fiber insulator that transformer substation used, including hollow sleeve pipe, optic fibre bundle, full skirt, first metal flange and second metal flange, be equipped with the recess that is used for installing the optic fibre bundle along its axis direction on the sheathed tube lateral wall, first metal flange rigid coupling is in sheathed tube one end, be equipped with on the first metal flange and be used for supplying the first through-hole of optic fibre bundle lead wire, second metal flange rigid coupling is in the sheathed tube other end, be equipped with on the second metal flange and be used for supplying the second through-hole of optic fibre bundle lead wire, the full skirt cover is established on the sheathed tube outer wall. The insulator in the scheme has the advantages of simple preparation process, low production difficulty and no problem on the bonding surface of the optical fiber bundle and the sleeve.

Description

Optical fiber insulator for transformer substation

Technical Field

The utility model relates to an insulator field, specific is an optical fiber insulator that transformer substation used.

Background

A wide variety of fiber composite insulators are now known and are primarily porcelain and glass insulators. For example, japanese discloses a technique of mainly passing one or two optical fibers through a hole in a body axis portion of a ceramic insulator and filling the through hole with an organic insulating material (such as silicone rubber, epoxy resin, or the like) entirely or partially, so that the optical fibers are sealed in the through hole and the reduction of the surface creepage insulation distance of the insulator is prevented. Also disclosed is a technique in which the entire porcelain insulator body is heated and then a molten glass is injected into all or a part of the through-hole to seal the optical fiber in the through-hole.

However, one of the disadvantages of the above-mentioned techniques is: since the difference in thermal expansion coefficient between the organic material used as the sealing member and the ceramic used as the insulator is large, when the optical fiber is sealed with the organic material, the sealing material is pushed out of the through-hole or the ceramic insulator is broken due to stress generated inside the insulator by the thermal expansion of the organic material during heating.

Another disadvantage of the above technique is: when the optical fiber is sealed with the above inorganic material, a large-sized apparatus is required to heat the entire porcelain insulator body which is long, and therefore, the apparatus is too expensive and also consumes a large amount of electric power. The method of sealing the optical fiber with the inorganic material is too expensive. In addition, when the entire insulator body including the optical fiber passing through the insulator body is heated to melt the glass, the coating layer on the optical fiber is peeled off, and the optical fiber is easily broken.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect in the prior art, the embodiment of the utility model provides an optical fiber insulator that transformer substation used, it is used for solving above-mentioned problem.

The embodiment of the application discloses: the utility model provides an optical fiber insulator that transformer substation used, includes hollow sleeve pipe, optic fibre bundle, full skirt, first metal flange and second metal flange, be equipped with the recess that is used for installing the optic fibre bundle along its axis direction on the sheathed tube lateral wall, first metal flange rigid coupling is in sheathed tube one end, be equipped with on the first metal flange and be used for supplying the first through-hole of optic fibre bundle lead wire, second metal flange rigid coupling is in the sheathed tube other end, be equipped with on the second metal flange and be used for supplying the second through-hole of optic fibre bundle lead wire, the full skirt cover is established on the sheathed tube outer wall.

Specifically, the optical fiber bundle is connected with the first metal flange and the second metal flange respectively by using vulcanized silicone rubber.

Specifically, the sleeve is made of epoxy resin glass fiber.

Specifically, 48-way direct-insertion terminals are respectively arranged at two ends of the optical fiber bundle.

Specifically, the umbrella skirt is made of vulcanized silicone rubber.

Specifically, the groove is arc-shaped, and the diameter of the groove is 0.2-0.3 mm larger than the outer diameter of the optical fiber bundle.

Specifically, the first through hole penetrates through the side wall of the first metal flange.

Specifically, the second through hole penetrates through a side wall of the second metal flange.

Specifically, the shed is formed on the outer wall of the sleeve in an injection mode after the first metal flange and the second metal flange are fixedly connected to the sleeve.

The utility model discloses following beneficial effect has at least:

compared with the insulator which adopts extra high-temperature melting organic materials to fix the optical fiber bundle in the prior art, the optical fiber insulator for the transformer substation in the embodiment has the advantages that the optical fiber bundle on the insulator is mainly fixed through the groove on the outer side wall of the sleeve, and the optical fiber bundle is not heated at high temperature in the fixing process of the optical fiber bundle, so that the coating layer of the optical fiber bundle is not damaged. The insulator of the embodiment has the advantages of ingenious and simple structure, simple processing technology, low production difficulty and no problem in interface bonding between the optical fiber bundle and the sleeve.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an optical fiber insulator for a substation according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Reference numerals of the above figures: 1. a sleeve; 11. a groove; 2. a fiber optic bundle; 3. an umbrella skirt; 4. a first metal flange; 5. a second metal flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the optical fiber insulator for a substation in the present embodiment includes a hollow sleeve 1, an optical fiber bundle 2, a shed 3, a first metal flange 4, and a second metal flange 5. The outer side wall of the sleeve 1 is provided with a groove 11 used for installing the optical fiber bundle 2 along the axial direction, the groove 11 can be an arc-shaped groove 11, and the diameter of the arc-shaped groove 11 can be 0.2-0.3 mm larger than the outer diameter of the optical fiber bundle 2. A first metal flange 4 is fixedly connected to one end of the sleeve 1, and the first metal flange 4 is provided with a first through hole (not shown in the figure) for leading out (incoming line or outgoing line) of the optical fiber bundle 2; the second metal flange 5 is fixedly connected to the other end of the sleeve 1, and a second through hole (not shown) for leading out the optical fiber bundle 2 is formed in the second metal flange 5. The umbrella skirt 3 is sleeved on the outer wall of the sleeve 1, and preferably, the umbrella skirt 3 is formed on the outer wall of the sleeve 1 in an injection mode after the first metal flange 4 and the second metal flange 5 are fixedly connected on the sleeve 1. That is, the umbrella skirt 3 in this embodiment is the final molded product, and after the optical fiber bundle 2 is embedded in the groove 11 of the sleeve 1 and both ends of the sleeve 1 are respectively fixed to the first metal flange 4 and the second metal flange 5, the semi-finished product is placed into an injection mold, and the umbrella skirt 3 is molded on the outer wall of the sleeve 1 by injection.

Specifically, as shown in fig. 1, the first through hole penetrates through the side wall of the first metal flange 4 for being fixedly connected with the sleeve 1, that is, the first through hole does not penetrate through the two end walls of the first metal flange 4 along the axial direction, so that the processing length of the first through hole can be shortened, and the processing efficiency can be improved. Similarly, the second through hole penetrates through the side wall of the second metal flange 5 for fixedly connecting with the casing 1.

Specifically, the sleeve 1 can be made of epoxy resin glass fiber, and the umbrella skirt 3 can be made of vulcanized silicone rubber. 48-path direct-insert terminals can be respectively arranged at two ends of the optical fiber bundle 2 so as to monitor the operating conditions of the sleeve 1 of the insulator, such as temperature, stress, local matrix damage and the like.

The preparation method of the optical fiber insulator for the transformer substation in the embodiment is as follows:

first, a hollow sleeve 1 is prepared, and a groove 11 is processed on the outer side wall thereof in the axial direction of the sleeve 1.

Next, the first metal flange 4 and the second metal flange 5 are respectively installed at both ends of the ferrule 1, and the optical fiber bundle 2 is implanted into both the metal flanges. After this step is finished, appropriate silicon sulfide rubber may be injected into the first through hole of the first metal flange 4 and the second through hole of the second metal flange 5, respectively, to perform preliminary positioning of the optical fiber bundle 2. Further, since the sleeve is made of epoxy resin glass fiber, a curing agent is added to a position corresponding to the groove 11, so that a part of the resin and the optical fiber at the groove 11 is cured to further perform primary positioning and protection on the optical fiber bundle 2.

Then, the sleeve 1 provided with the first metal flange 4 and the second metal flange 5 is placed in an injection mold of an injection machine, and the umbrella skirt 3 coated on the outer wall of the sleeve 1 is integrally injected by the injection machine.

By means of the above structure, compared with the insulator that uses extra high-temperature melting organic material to fix the optical fiber bundle 2 in the prior art, the optical fiber insulator for the transformer substation in the embodiment has the optical fiber bundle 2 fixed mainly by the groove 11 on the outer sidewall of the sleeve 1, and the optical fiber bundle 2 is not heated at high temperature during the fixing process of the optical fiber bundle 2, so the cladding layer of the optical fiber bundle 2 is not damaged. The insulator of the embodiment has the advantages of ingenious and simple structure, simple processing technology, low production difficulty and no problem in interface bonding between the optical fiber bundle 2 and the sleeve 1.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides an optical fiber insulator that transformer substation used, its characterized in that, includes hollow form sleeve pipe, optic fibre bundle, full skirt, first metal flange and second metal flange, be equipped with the recess that is used for installing the optic fibre bundle along its axis direction on the sheathed tube lateral wall, first metal flange rigid coupling is in sheathed tube one end, be equipped with on the first metal flange and be used for supplying the first through-hole of optic fibre bundle lead wire, second metal flange rigid coupling is in the sheathed tube other end, be equipped with on the second metal flange and be used for supplying the second through-hole of optic fibre bundle lead wire, the full skirt cover is established on the sheathed tube outer wall.

2. The fiber optic insulator of claim 1, wherein the fiber optic strands are respectively connected to the first metal flange and the second metal flange using silicon sulfide rubber.

3. The fiber optic insulator of claim 1, wherein the sleeve is made of epoxy fiberglass.

4. The optical fiber insulator according to claim 1, wherein 48-way in-line terminals are respectively arranged at two ends of the optical fiber bundle.

5. The optical fiber insulator according to claim 1, wherein the shed is made of vulcanized silicone rubber.

6. The optical fiber insulator according to claim 1, wherein the groove is arc-shaped, and the diameter of the groove is 0.2-0.3 mm larger than the outer diameter of the optical fiber bundle.

7. The fiber optic insulator of claim 1, wherein the first through hole penetrates through the first metal flange sidewall.

8. The fiber optic insulator of claim 1, wherein the second through-hole extends through a sidewall of the second metal flange.

9. The fiber optic insulator of claim 1, wherein the shed is injection molded onto the outer wall of the sleeve after the first metal flange and the second metal flange are secured to the sleeve.