CN206490037U - Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting - Google Patents
Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting Download PDFInfo
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- CN206490037U CN206490037U CN201621476951.7U CN201621476951U CN206490037U CN 206490037 U CN206490037 U CN 206490037U CN 201621476951 U CN201621476951 U CN 201621476951U CN 206490037 U CN206490037 U CN 206490037U
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- plastic casing
- screen layer
- exempts
- magnet ring
- energy supply
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Abstract
Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting, including iron core, the surface parcel buffering screen layer one of iron core buffers coiling on screen layer one, coil surface parcel buffering screen layer two is simultaneously set in a plastic housing, casting epoxy resin or polyurethane black glue in shell；In use, parcel buffers screen layer one on iron core, coiling on the iron core of buffering screen layer one will be included, then include again after buffering screen layer two on coil, integrally will be put into plastic casing, under vacuum casting epoxy resin；The utility model has the quantity for being not only restricted to mould, and the process for reducing the demoulding, the advantage that production efficiency is also greatly improved.
Description
Technical field
The utility model is related to high voltage DC breaker energy supply magnet ring, and more particularly to plastic casing exempts from the straight of die casting
Flow breaker energy supply magnet ring.
Background technology
Dc circuit breaker is made at present with the electric equipment products that energy supply magnet ring is that a kind of structure type is similar to current transformer
10~35kV transformer classes product is mainly poured into a mould by mould under vacuum conditions using epoxy resin, and this way exists
Using extremely wide in middle pressure transformer, but the problem of there are following several respects：
1. being limited by number of molds, production efficiency can not be improved：
The technical process of epoxide resin vacuum cast is that the part that will be assembled is placed in the special-purpose metal for having coated releasing agent
It is in mould and fixed, it is then placed in vacuum pouring tank, under constant temperature, vacuum state, pours into what is handled by vacuum defoamation
Formulaion of epoxy resin system compound, mould is sloughed after heat cure.
Vacuumized using epoxide resin vacuum cast, pour into a mould, the technique such as solidify, if to increase substantially production efficiency,
Moulds must just be put into more, and the production cycle length of casting mold, costly and every kind of mould can only be for specific productions
Product.
2. there are problems that poured with epoxy resin manufacturability, resistance to temperature impact,：
Poured with epoxy resin material must possess the good condensate performance being adapted with dry insulation system, but important
It is that solidfied material should not produce cracking and bubble (space).Though the necessary characteristic of poured with epoxy resin material has a lot, in general, pour
Note manufacturability, resistance to temperature impact, heat resistance even more important, still, to meet these three characteristics is not one easy
Thing.For poured with epoxy resin material, on basic formula design concept, it is ensured that the operative weldability of poured with epoxy resin material
(viscosity and validity period under specified temp) and resistance to temperature impact (splitting resistance) are necessary conditions, so being typically only capable to sacrifice
Part heat resistance, to keep high splitting resistance.In casting resin developing history, the balance of fundamental characteristics should be obtained, again
It is always a big problem to try to improve resistance to temperature impact property.
3. the product of user's particular color is not easily accomplished：
User needs certain specific color, and mill base can be added during poured with epoxy resin, is mixed colours, but color compares
It is single, and the color of dispensing can all have than larger difference each time, it is impossible to precisely color matching.
4. installation position intensity is not high：
Cast-type mutual inductor generally improves the intensity of installation position with the metal mounting base of ground connection, and function magnet ring by
In its infield particularity, it is impossible to improve intensity using metallic plate, the material of direct epoxy casting is more crisp, using plastics
Shell can improve the intensity of installation position.
The content of the invention
In order to overcome above-mentioned problem, the purpose of this utility model is that providing a kind of plastic casing exempts from die casting
Dc circuit breaker energy supply magnet ring, inside is poured into a mould using epoxide resin vacuum or using the cast of polyurethane black glue, with insulating properties
Can be good, partial discharge amount is small, high mechanical strength, the high advantage of tolerable temperature；Shell uses special plastic injection molding, with insulating properties
The good, high mechanical strength of energy, the advantage of good appearance, and can be used when vacuum pouring is molded as mould, make to pour into a mould
Cheng Buzai is restricted by number of molds.
In order to achieve the above object, the technical solution of the utility model is realized in：
Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting, including iron core 1, the surface parcel buffering of iron core 1
Coiling 3 on screen layer 1, buffering screen layer 1, the surface of coil 3 parcel buffering screen layer 24 is simultaneously arranged on plastic casing
In 5, casting epoxy resin 6 in plastic casing 5.
Described shell 5 includes colouring agent, vector resin, dispersant and auxiliary agent.
Described shell 5 casting epoxy resin 6 under vacuum.
The replaceable generating polyurethane black glue of described epoxy resin 6.
The beneficial effects of the utility model：
Plastic casing can be used when pouring into a mould (or the cast of polyurethane black glue) in epoxide resin vacuum as mould, be solved
Cast is limited by number of molds, it is impossible to the problem of effectively improving production efficiency；Poured into a mould under vacuum conditions, will be internal exhausted
The possibility that edge produces air gap falls below minimum, is conducive to the lifting of partial discharge index；Using polyurethane black glue, because its material is solid
It is elastomer after change, the resistance to temperature impact of product can be effectively improved and the electric property that the stress deformation after cast is caused is reduced
Decline；The experiment of experiment high temperature, Alternate hot and humid, temperature cycling test, the vibration test requirement for energizing magnet ring are more strict, with biography
System transformer pouring type, it is difficult to by experiment, and this problem is not present due to the physical characteristic of plastics in plastic casing.
Brief description of the drawings
Fig. 1 is horizontal schematic cross-sectional view of the present utility model.
Fig. 2 is schematic perspective view of the present utility model.
Embodiment
Structure and working principle of the present utility model is specifically described below in conjunction with the accompanying drawings.
Shown in reference picture 1, Fig. 2, plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting, including iron core 1, iron
Coiling 3 on the surface parcel buffering screen layer 1 of core 1, buffering screen layer 1, the surface of coil 3 parcel buffering screen layer two
4 and it is arranged in plastic casing 5, casting epoxy resin 6 in plastic casing 5.
Described shell 5 includes colouring agent, vector resin, dispersant and auxiliary agent.
Described shell 5 casting epoxy resin 6 under vacuum.
The replaceable generating polyurethane black glue of described epoxy resin 6.
Operation principle of the present utility model is：
In use, parcel buffers screen layer 1 on iron core 1, coiling line on the iron core of buffering screen layer 1 will be included
Circle 3, then includes after buffering screen layer 24, will integrally be put into plastic casing 5, pour under vacuum again on coil 3
Note epoxy resin 6 or polyurethane black glue.With being not only restricted to the quantity of mould, and the process for reducing the demoulding, production
Efficiency is also greatly improved.
Claims (4)
1. plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting, including iron core (1), it is characterised in that iron core (1)
Coiling (3) on surface parcel buffering screen layer one (2), buffering screen layer one (2), the parcel buffering shielding of coil (3) surface
Two (4) of layer are simultaneously arranged in plastic casing (5), casting epoxy resin (6) in plastic casing (5).
2. plastic casing according to claim 1 exempts from the dc circuit breaker energy supply magnet ring of die casting, it is characterised in that institute
The plastic casing (5) stated includes colouring agent, vector resin, dispersant and auxiliary agent.
3. plastic casing according to claim 1 exempts from the dc circuit breaker energy supply magnet ring of die casting, it is characterised in that institute
The shell (5) stated casting epoxy resin (6) under vacuum.
4. plastic casing according to claim 1 exempts from the dc circuit breaker energy supply magnet ring of die casting, it is characterised in that institute
The replaceable generating polyurethane black glue of epoxy resin (6) stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476951.7U CN206490037U (en) | 2016-12-30 | 2016-12-30 | Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476951.7U CN206490037U (en) | 2016-12-30 | 2016-12-30 | Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490037U true CN206490037U (en) | 2017-09-12 |
Family
ID=59770204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476951.7U Active CN206490037U (en) | 2016-12-30 | 2016-12-30 | Plastic casing exempts from the dc circuit breaker energy supply magnet ring of die casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311656A (en) * | 2021-12-31 | 2022-04-12 | 西安交通大学 | Method for preparing composite solid propellant based on 3D printing special-shaped high-burning-speed forming die |
-
2016
- 2016-12-30 CN CN201621476951.7U patent/CN206490037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311656A (en) * | 2021-12-31 | 2022-04-12 | 西安交通大学 | Method for preparing composite solid propellant based on 3D printing special-shaped high-burning-speed forming die |
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