CN119324115A - Independent positioning process for die filling of upper part and lower part of open-close type current transformer - Google Patents
Independent positioning process for die filling of upper part and lower part of open-close type current transformer Download PDFInfo
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- CN119324115A CN119324115A CN202411540984.2A CN202411540984A CN119324115A CN 119324115 A CN119324115 A CN 119324115A CN 202411540984 A CN202411540984 A CN 202411540984A CN 119324115 A CN119324115 A CN 119324115A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
本发明公开了开合式电流互感器上下两部分装模独立定位的工艺，涉及电流互感器制造技术领域；包括：在浇注模具底盖板的凹槽中放入方块磁铁，将固定嵌件固定在浇注模具底盖板上；将浇注模具前模与浇注模具底盖板拼装在一起；将开合式电流互感器的夹件嵌件分别与浇注模具前模、浇注模具后模固定在一起；将开合式电流互感器的器身放入浇注模具前模中，所述器身与方块磁铁上下对齐；将浇注模具后模与浇注模具底盖板、浇注模具前模固定在一起；开合式电流互感器下部分装模独立定位的方式与上部分相同。由于上下两部分独立定位，操作更加灵活简便，降低了操作难度和劳动强度；独立定位的方式减少了因同时定位带来的误差累积，提高了生产效率。
The present invention discloses a process for independently positioning the upper and lower parts of an open-and-closed current transformer, and relates to the technical field of current transformer manufacturing; the process includes: placing a square magnet in a groove of a bottom cover plate of a casting mold, fixing a fixed insert on the bottom cover plate of the casting mold; assembling a front mold of the casting mold with a bottom cover plate of the casting mold; fixing the clamp insert of the open-and-closed current transformer with the front mold of the casting mold and the back mold of the casting mold respectively; placing the body of the open-and-closed current transformer into the front mold of the casting mold, and aligning the body with the square magnet up and down; fixing the back mold of the casting mold with the bottom cover plate of the casting mold and the front mold of the casting mold; the method of independently positioning the lower part of the open-and-closed current transformer is the same as that of the upper part. Due to the independent positioning of the upper and lower parts, the operation is more flexible and simple, and the difficulty of operation and labor intensity are reduced; the independent positioning method reduces the error accumulation caused by simultaneous positioning, and improves production efficiency.
Description
Technical Field
The invention relates to the technical field of current transformer manufacturing, in particular to a process for independently positioning upper and lower die filling parts of an open-close type current transformer.
Background
In the manufacturing process of the open-close type current transformer, die filling positioning is one of key links. In the past, the common die-filling method adopts a mode of simultaneously positioning an upper part and a lower part, but the mode is accompanied by a plurality of challenges including limited positioning accuracy, complicated operation flow, easy deviation and the like, and the problems obviously prevent the improvement of product quality and the optimization of production efficiency. More importantly, the traditional open-close type current transformer is difficult to meet the increasing demands of the current power system due to insufficient production precision, and becomes a key difficult problem to be overcome in upgrading and sustainable development of the power system.
Disclosure of Invention
The invention aims to provide a process for independently positioning upper and lower die-filling parts of an open-close type current transformer, which aims to solve the problems of easy damage to a transformer body, package leakage after pouring of the transformer, complicated procedures, low qualification rate, long manufacturing period and the like in the existing open-close type current transformer die-filling positioning.
In order to achieve the purpose, the technical scheme of the application is that the process for independently positioning the upper and lower parts of the open-close type current transformer by die filling comprises the following steps:
Firstly, cutting a circular iron core into two semi-circular iron cores, and finely grinding the cut parts of the iron cores to enable the end surfaces of the iron cores to be smooth and even;
secondly, insulating and wrapping the semi-annular iron core and winding copper wires to form a body of the open-close type current transformer;
Step three, square magnets are placed in grooves of a bottom cover plate of a casting mold, and a fixing insert at the lower part of the open-close type current transformer is fixed on the bottom cover plate of the casting mold by using a first hexagon head bolt;
Fourthly, splicing the front die of the casting die with the bottom cover plate of the casting die;
Fixing the clamping inserts of the open-close type current transformer with the front die and the rear die of the casting die by using a second hexagon head bolt;
Putting the body of the open-close type current transformer into a front mould of a casting mould, aligning the body with the square magnet vertically, fixing the body of the open-close type current transformer through the square magnet, and then adjusting the body to leave gaps with the clamping piece inserts and the fixing inserts so as to ensure that the coil of the body is insulated from the clamping piece inserts to the ground;
a third hexagon head bolt is used for fixing the rear die of the casting die with the bottom cover plate of the casting die and the front die of the casting die;
the upper die-filling independent positioning mode is the same as the lower die-filling independent positioning mode.
In one embodiment, the body of the current transformer is centered between the front mold of the casting mold and the inner cavity of the rear mold of the casting mold by the fixing inserts at the top and the clamping inserts at the two sides.
In one embodiment, in the first step, the annular iron core of the open-close type current transformer is rolled by permalloy with high magnetic permeability and stable performance and is subjected to glue spraying treatment.
In one embodiment, the bottom cover plate of the casting mold is provided with two grooves, each groove is internally provided with a square magnet, and the square magnet is vertically aligned with the semi-annular body end surface of the open-close type current transformer for fixing.
In one embodiment, a first through hole is formed in the periphery of the bottom cover plate of the casting mold, a first hexagon head bolt is used for penetrating through the corresponding first through hole, and fixing inserts of the upper part and the lower part of the open-close type current transformer are fixed on the bottom cover plate of the casting mold.
In one embodiment, the front mold and the rear mold of the casting mold are respectively provided with a second through hole, and the clamping piece inserts of the open-close type current transformer are respectively fixed on the front mold and the rear mold of the casting mold by using a second hexagon head bolt to pass through the corresponding second through holes.
In one embodiment, the peripheries of the front casting mold and the rear casting mold are further provided with third through holes, and third hexagon bolts penetrate through the third through holes to fix the front casting mold and the rear casting mold.
In one embodiment, the front mold and the rear mold of the casting mold are respectively provided with an outer edge extending outwards.
In one embodiment, the outer edges of the front mold and the rear mold of the casting mold are provided with third through holes.
In one embodiment, the two sides of the bottom cover plate of the casting mold are provided with third through holes, and the third hexagon head bolts penetrate through the third through holes of the bottom cover plate of the casting mold and the third through holes on the outer edge to fix the bottom cover plate of the casting mold, the front mold of the casting mold and the rear mold of the casting mold.
By adopting the technical scheme, the invention can obtain the following technical effects:
1) The upper and lower parts are independently positioned, so that the operation is more flexible and convenient, the operation difficulty and the labor intensity are reduced, the error accumulation caused by simultaneous positioning is reduced by an independent positioning mode, the production efficiency is improved, and the produced transformer has high precision and meets the increasingly-growing requirements of an electric power system.
2) The invention replaces the traditional jackscrew positioning mode by adopting the independent positioning technology of die filling of the upper part and the lower part of the transformer body, has simpler and more convenient operation, and omits a plurality of procedures of jackscrew removal, material supplementing, appearance repairing and the like after casting, thereby improving the production efficiency and simultaneously ensuring the appearance quality of the product.
3) The invention uses the square magnet to position the transformer coil body, thereby ensuring that the insulation distance of the transformer coil body in the clamping fixture is uniform. Because the magnetic force is strong, the mutual inductor body can be prevented from tilting and shaking, so that the mutual inductor body is firmer, the performance stability of the mutual inductor is further ensured, and the qualification rate of products is remarkably improved.
4) In the production process, the permalloy coiled iron core with high magnetic permeability and stability is selected, so that the measurement precision of the produced product can reach 0.5 level, and the accuracy of the measurement of the product under the wide load condition is ensured.
5) Through setting up fixed inserts and both sides and be equipped with the folder inserts at the top for the ware body can guarantee more directly perceivedly that the coil is placed in the middle of the die filling in-process, thereby improved the accuracy and the efficiency of assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a die-filling mold for an open-close type current transformer according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the mold of the open-close type current transformer;
FIG. 3 is a side view and a partial internal structure schematic diagram of a die-filling mold of an open-close type current transformer according to the invention;
fig. 4 is a top view of the mold of the current transformer of the invention.
In the figure, a casting mold bottom cover plate is shown as 1, a casting mold front mold is shown as 2, a body of an open-close type current transformer is shown as 3, a square magnet is shown as 4, a clamping insert is shown as 5, a second hexagon head bolt is shown as 6, a third hexagon head bolt is shown as 7, a casting mold rear mold is shown as 8, a first hexagon head bolt is shown as 9, a fixing insert is shown as 10, a first through hole is shown as 11, a groove is shown as 12, a second through hole is shown as 13, a third through hole is shown as 14, and an iron core is shown as 15.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present application, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-4, the embodiment provides a process for independently positioning upper and lower mold-filling parts of an open-close type current transformer, which comprises the following steps:
Firstly, rolling a ring-shaped iron core 15 of the open-close type current transformer through permalloy with high magnetic permeability and stable performance, spraying glue, and then cutting the ring-shaped iron core into two semi-ring-shaped iron cores, wherein the cutting position of the iron core is required to be accurately polished, so that the end surface of the iron core is smooth and flat;
Secondly, insulating and wrapping the semi-annular iron core and winding copper wires to form a body 3 of the open-close type current transformer;
Putting square magnets 4 into two grooves of the bottom cover plate 1 of the casting mold, forming first through holes 11 around the bottom cover plate 1 of the casting mold, penetrating the corresponding first through holes 11 by using first hexagon bolts 9, and fixing a fixing insert 10 at the lower part of the open-close type current transformer on the bottom cover plate 1 of the casting mold;
fourthly, assembling the front mold 2 of the casting mold and the bottom cover plate 1 of the casting mold;
A fifth step of respectively forming second through holes 13 on the front casting mold 2 and the rear casting mold 8, and respectively fixing the clamping inserts 5 of the open-close type current transformer on the front casting mold 2 and the rear casting mold 8 by using the second hexagon head bolts 6 to pass through the corresponding second through holes 13;
Putting the body 3 of the open-close type current transformer into a front mold 2 of a casting mold, aligning the body 3 with a square magnet 4 up and down, fixing the body 3 of the open-close type current transformer through the square magnet 4, and then adjusting the body 3 to leave gaps with a clamping piece insert 5 and a fixing insert 10 so as to ensure insulation to the ground between a coil of the body and the clamping piece insert;
And in addition, the outer edges of the front casting mold 2 and the rear casting mold 8 are provided with third through holes, the two sides of the bottom cover plate 1 of the casting mold are provided with third through holes, and the bottom cover plate 1 of the casting mold, the casting mold 2 and the rear casting mold 8 are fixed by the third hexagon head bolts 7 through the third through holes of the bottom cover plate 1 of the casting mold and the third through holes on the outer edges.
The upper die-filling independent positioning mode is the same as the lower die-filling independent positioning mode.
The invention uses square magnets to replace the traditional jackscrews to realize the positioning of the open-close type zero-sequence current transformer body, has simple operation, omits a series of procedures of taking down jackscrews after pouring, and then carrying out feeding, appearance repairing and the like, ensures the production efficiency and the appearance of the product, improves the die-filling positioning precision of the upper part and the lower part of the open-close type current transformer, thereby obviously improving the product quality; the independent positioning mode reduces error accumulation caused by simultaneous positioning, improves production efficiency, and the produced transformer has high precision and meets the requirement of an increasingly growing power system.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present application.
Claims (10)
1. The process for independently positioning the upper and lower die filling parts of the open-close type current transformer is characterized by comprising the following steps of:
firstly, cutting a circular iron core (15) into two semi-circular iron cores, and finely grinding the cut parts of the iron cores to enable the end surfaces of the iron cores to be smooth and flat;
secondly, insulating and wrapping the semi-annular iron core and winding copper wires to form a body (3) of the open-close type current transformer;
Step three, a square magnet (4) is placed in a groove of a bottom cover plate (1) of the casting mold, and a fixing insert (10) at the lower part of the open-close type current transformer is fixed on the bottom cover plate (1) of the casting mold by using a first hexagon head bolt (9);
fourthly, assembling the front mould (2) of the casting mould and the bottom cover plate (1) of the casting mould;
a fifth step of fixing a clamping insert (5) of the open-close type current transformer with a front casting mold (2) and a rear casting mold (8) respectively by using a second hexagon head bolt (6);
Putting the body (3) of the open-close type current transformer into a front mold (2) of a casting mold, aligning the body (3) with a square magnet (4) vertically, fixing the body (3) of the open-close type current transformer through the square magnet (4), and then adjusting the body (3) to leave a gap with a clamping piece insert (5) and a fixing insert (10), so as to ensure that a coil of the body is insulated from the clamping piece insert to the ground;
A seventh step of fixing a rear die (8) of the casting die, a bottom cover plate (1) of the casting die and a front die (2) of the casting die together by using a third hexagon head bolt (7);
the upper die-filling independent positioning mode is the same as the lower die-filling independent positioning mode.
2. The process for independently positioning the upper and lower mold loading parts of the open-close type current transformer according to claim 1 is characterized in that the body (3) of the current transformer is centered in the inner cavities of the front mold (2) and the rear mold (8) of the casting mold through the fixed inserts (10) at the top and the clamping inserts (5) at the two sides.
3. The process for independently positioning the upper and lower parts of the open-close type current transformer according to claim 1, wherein in the first step, the annular iron core (15) of the open-close type current transformer is rolled by permalloy with high magnetic permeability and stable performance and is subjected to glue spraying treatment.
4. The process for independently positioning the upper and lower die-filling parts of the open-close type current transformer according to claim 1, wherein two grooves (12) are formed in the bottom cover plate (1) of the casting die, square magnets are placed in each groove, and the square magnets are vertically aligned with the end faces of the semi-annular body of the open-close type current transformer for fixing.
5. The process for independently positioning the upper and lower mold loading parts of the open-close type current transformer according to claim 1 is characterized in that first through holes (11) are formed in the periphery of the bottom cover plate (1) of the casting mold, first hexagon head bolts (9) penetrate through the corresponding first through holes (11), and fixing inserts (10) of the upper and lower mold loading parts of the open-close type current transformer are fixed on the bottom cover plate (1) of the casting mold.
6. The process for independently positioning the upper and lower mold loading parts of the open-close type current transformer according to claim 1, wherein the front mold (2) and the rear mold (8) of the casting mold are respectively provided with a second through hole (13), a second hexagon head bolt (6) is used for penetrating through the corresponding second through hole (13), and the clamping insert (5) of the open-close type current transformer is respectively fixed on the front mold (2) and the rear mold (8) of the casting mold.
7. The process for independently positioning the upper and lower die-filling parts of the open-close type current transformer according to claim 1 is characterized in that a third through hole is further formed in the periphery of the front die (2) and the periphery of the rear die (8) of the casting die, and a third hexagon head bolt (7) penetrates through the third through hole to fix the front die (2) and the rear die (8) of the casting die.
8. The process for independently positioning the upper and lower die-filling parts of the open-close type current transformer according to claim 1, wherein the front die (2) and the rear die (8) of the casting die are respectively provided with an outer edge extending outwards.
9. The process for independently positioning the upper and lower die-filling parts of the open-close type current transformer according to claim 8 is characterized in that a third through hole is formed in the outer edges of the front die (2) and the rear die (8) of the casting die.
10. The process for independently positioning the upper and lower die-filling parts of the open-close type current transformer according to claim 9, wherein the two sides of the bottom cover plate (1) of the casting die are provided with third through holes, and the third hexagon head bolts (7) penetrate through the third through holes of the bottom cover plate (1) of the casting die and the third through holes on the outer edge to fix the bottom cover plate (1) of the casting die, the front die (2) of the casting die and the rear die (8) of the casting die.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411540984.2A CN119324115B (en) | 2024-10-31 | 2024-10-31 | Process for independent positioning of upper and lower parts of split-type current transformer |
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| CN202411540984.2A CN119324115B (en) | 2024-10-31 | 2024-10-31 | Process for independent positioning of upper and lower parts of split-type current transformer |
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| CN119324115B CN119324115B (en) | 2025-09-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266350A (en) * | 1994-03-31 | 1995-10-17 | Kyushu Henatsuki Kk | Method and apparatus for insert molding of magnetic element |
| CN203542955U (en) * | 2013-10-25 | 2014-04-16 | 天津市百利纽泰克电气科技有限公司 | Vertical type pouring mold for cut-iron-core zero sequence current transformer |
| CN107045929A (en) * | 2016-12-20 | 2017-08-15 | 大连第互感器有限责任公司 | The preparation method and casting mold of open-close type ZCT |
| CN209487300U (en) * | 2019-01-23 | 2019-10-11 | 大连北方互感器集团有限公司 | The outer open-close type low-voltage current mutual inductor of intelligent distribution transforming user |
| US20210265110A1 (en) * | 2018-07-02 | 2021-08-26 | Fluke Corporation | Current transformer |
| CN214848162U (en) * | 2021-05-24 | 2021-11-23 | 河南势展电力科技有限公司 | Pouring mold of pouring type current transformer |
-
2024
- 2024-10-31 CN CN202411540984.2A patent/CN119324115B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266350A (en) * | 1994-03-31 | 1995-10-17 | Kyushu Henatsuki Kk | Method and apparatus for insert molding of magnetic element |
| CN203542955U (en) * | 2013-10-25 | 2014-04-16 | 天津市百利纽泰克电气科技有限公司 | Vertical type pouring mold for cut-iron-core zero sequence current transformer |
| CN107045929A (en) * | 2016-12-20 | 2017-08-15 | 大连第互感器有限责任公司 | The preparation method and casting mold of open-close type ZCT |
| US20210265110A1 (en) * | 2018-07-02 | 2021-08-26 | Fluke Corporation | Current transformer |
| CN209487300U (en) * | 2019-01-23 | 2019-10-11 | 大连北方互感器集团有限公司 | The outer open-close type low-voltage current mutual inductor of intelligent distribution transforming user |
| CN214848162U (en) * | 2021-05-24 | 2021-11-23 | 河南势展电力科技有限公司 | Pouring mold of pouring type current transformer |
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