CN107808762B - Method for guaranteeing insulation distance of high-voltage coil - Google Patents
Method for guaranteeing insulation distance of high-voltage coil Download PDFInfo
- Publication number
- CN107808762B CN107808762B CN201711435979.5A CN201711435979A CN107808762B CN 107808762 B CN107808762 B CN 107808762B CN 201711435979 A CN201711435979 A CN 201711435979A CN 107808762 B CN107808762 B CN 107808762B
- Authority
- CN
- China
- Prior art keywords
- layer
- insulating film
- circles
- same
- framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
-
- 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
- H01F41/122—Insulating between turns or between winding layers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention relates to a method for guaranteeing the insulation distance of a high-voltage coil, which comprises a framework, an insulation film, an enameled wire, a copper sheet and a lead wire; the framework is of a rectangular hollow structure, and the section of the framework is square; the insulating film is composed of two layers of Normei paper, and a high-temperature resistant polyester film is arranged between the two layers of Normei paper. All the windings are arranged in the middle, all the insulating films are fixed in the middle, the width of each insulating film is reduced in sequence, the outgoing line reaches the maximum insulating distance, and finally, 1 circle of copper sheet is used for wrapping and fixing the insulating films. The invention improves the phenomena of arc discharge and breakdown caused by insufficient creepage distance between the original windings or between the outgoing lines. By improving the invention, the original winding method is changed into grouping winding or the insulating materials with the same width are adopted, and the progressive decreasing insulating materials are adopted, so that the creepage distance of the outgoing line of the winding can be increased by at least 3mm, and the reliability and the service life of the product can be effectively increased.
Description
Technical Field
The invention relates to a method for guaranteeing the insulation distance of a high-voltage coil, which is used for the high-voltage coil of a high-voltage power supply of a medical X-ray machine.
Background
With the development of modern power electronics technology, the birth of high-frequency switching devices, and the development of high-voltage switching power supplies has been advanced toward high-frequency and miniaturization. The high-voltage coil in a high-voltage transformer is therefore required to pursue a smaller volume, and it is more important to ensure a corresponding electrical gap. At present, the manufacturing process of the high-voltage coil is generally continuous layering winding of a polyurethane enameled wire:
firstly, a Z-shaped winding structure is adopted, insulating materials with the same width are adopted among layers, and a group of high-voltage windings are output. The advantages are single type of insulating material and easy preparation. However, this process has the disadvantage that: the structure is complex, the operation is complex, the requirement on production personnel is high, the winding cross-layer processing method is required to be strictly according to a process drawing, and the processing of high voltage output by a later stage is difficult.
Secondly, a groove division skeleton structure is also adopted, and a polyurethane enameled wire is adopted and output is a group of high voltages. The winding process of this method is simpler but is more suitable for low-power transformers or low-cost solutions with somewhat lower reliability requirements.
Thirdly, the high voltage is divided into N low voltages, and then the N low voltages are processed and overlapped, so that the same effect can be obtained.
We can see that the first two schemes have in common that they output a high voltage and then do the processing with the latter circuitry. The third solution is more reliable in the process, however, after being divided into N windings, the outgoing lines are increased, so that the phenomena of arc discharge and breakdown between the outgoing lines are increased. In order to increase the reliability of the scheme and reduce the phenomena of arc discharge and breakdown between coils, the invention researches a method for realizing enough insulation distance between coils in a smaller space.
Disclosure of Invention
The invention aims to improve the process on the basis of the existing X-ray machine power supply to achieve the purpose of increasing the creepage distance, namely, outputting high voltage in a smaller space, and narrowing the insulation layer of a high-voltage coil layer by layer to ensure the reliability of a final product so as to ensure the maximum insulation distance of an outgoing line.
The invention adopts the following specific scheme to realize the aim: a method for guaranteeing the insulation distance of a high-voltage coil is characterized by comprising the following steps: comprises a framework, an insulating film, enamelled wires, copper sheets and leads;
the framework is of a rectangular hollow structure, and the section of the framework is square;
the insulating film consists of two layers of Normei paper, and a high-temperature resistant polyester film is arranged between the two layers of Normei paper;
the steps are as follows,
wrapping a first layer of insulating film around a first layer of wire, wrapping a first layer of polyurethane enameled wires around the middle position of the upper end and the lower end of one surface of the framework, extending the upper end and the lower end of the framework along the axial direction of the framework by a first layer of head starting end I and a tail starting end I, leaving the same distance A between the same side wall of the first layer of head starting end I and the tail starting end I and the right side edge of the framework, and respectively penetrating sleeves on the first layer of head starting end I and the tail starting end I;
wrapping a second layer of insulating film on a plurality of circles of polyurethane enamelled wires after the first layer of wire wrapping, keeping the same distance between the upper end and the lower end of the second layer of insulating film and the upper end and the lower end of the first layer of insulating film, winding a second layer of circles of polyurethane enamelled wires at the middle positions of the upper end and the lower end of the second layer of insulating film, enabling the second layer of circles of polyurethane enamelled wires to be the same as the first layer of circles of polyurethane enamelled wires in number, enabling a second layer of starting end II and a tail end II to extend out of the upper end and the lower end of the framework along the axial direction of the framework, keeping the same distance B between the same-directional side walls of the second layer of starting end II and the tail end II and the same-directional side walls of the first layer of starting end I and the tail end I, enabling the distance B to be the same as the distance A, and enabling sleeves to be respectively penetrated on the second layer of starting end II and the tail end II;
wrapping a third layer of insulating film on a plurality of circles of polyurethane enamelled wires after the second layer of wire wrapping, keeping the same distance between the upper end and the lower end of the third layer of insulating film and the upper end and the lower end of the second layer of insulating film, winding a third layer of polyurethane enamelled wires at the middle positions of the upper end and the lower end of the third layer of insulating film, winding the same circles of the third layer of polyurethane enamelled wires and the second layer of polyurethane enamelled wires, enabling the third layer of starting end III and the tail end III to extend out of the upper end and the lower end of the framework along the axial direction of the framework, keeping the same distance C between the same side walls of the third layer of starting end III and the tail end III and the same side walls of the second layer of starting end II and the tail end II, enabling the distance C to be the same as the distance B, and penetrating through the sleeves on the third layer of starting end III and the tail end III respectively;
a fourth layer of insulating film is coated on the polyurethane enamelled wire which is wound on the third layer, the same distance is reserved between the upper end and the lower end of the fourth layer of insulating film and the upper end and the lower end of the third layer of insulating film, the polyurethane enamelled wire which is wound on the fourth layer of insulating film is wound on the middle position of the upper end and the lower end of the fourth layer of insulating film, the number of the polyurethane enamelled wire which is wound on the fourth layer of insulating film is the same as that of the polyurethane enamelled wire which is wound on the third layer of insulating film, the fourth layer of starting end IV and the tail end IV extend out of the upper end and the lower end of the framework along the axial direction of the framework, the same distance D is reserved between the same side walls of the fourth layer of starting end IV and the tail end IV and the same side walls of the third layer of starting end III and the tail end III, and the distance D is the same as the distance C, and sleeves are respectively penetrated on the fourth layer of starting end IV and the tail end IV;
a fifth step of winding a fifth layer of wires, coating a fifth layer of insulating film on a plurality of circles of polyurethane enamelled wires after the fourth layer of wires, keeping the same distance between the upper end and the lower end of the fifth layer of insulating film and the upper end and the lower end of the fourth layer of insulating film, winding a fifth layer of polyurethane enamelled wires at the middle positions of the upper end and the lower end of the fifth layer of insulating film, winding the same circles of the fifth layer of polyurethane enamelled wires and the fourth layer of polyurethane enamelled wires, enabling the fifth layer of starting end V and the tail end V to extend out of the upper end and the lower end of the framework along the axial direction of the framework, keeping the same distance E between the same-directional side walls of the fifth layer of starting end V and the tail end V and the same-directional side walls of the fourth layer of starting end IV and the tail end IV, enabling the distance E to be the same as the distance D, and penetrating through the sleeves on the fifth layer of starting end V and the tail end V respectively;
a sixth step of winding a sixth layer of wire, namely rotating the framework clockwise for 90 degrees, coating a sixth layer of insulating film on a plurality of circles of polyurethane enamelled wire wound on the fifth layer of wire on the other surface of the framework, keeping the same distance between the upper end and the lower end of the sixth layer of insulating film and the upper end and the lower end of the fifth layer of insulating film, winding a sixth layer of polyurethane enamelled wire on the middle position of the upper end and the lower end of the sixth layer of insulating film, winding the sixth layer of polyurethane enamelled wire with the same number of circles as the fifth layer of polyurethane enamelled wire, enabling a sixth layer of head end VI and a tail end VI to extend out of the upper end and the lower end of the framework along the axial direction of the framework, keeping the same distance F between the same side wall of the sixth layer of head end VI and the tail end VI and the right side edge of the framework, and respectively penetrating through sleeves on the sixth layer of head end VI and the tail end VI;
a seventh layer of insulating film is coated on a plurality of circles of polyurethane enamelled wires after the sixth layer of winding, the same distance is reserved between the upper end and the lower end of the seventh layer of insulating film and the upper end and the lower end of the sixth layer of insulating film, a seventh layer of circles of polyurethane enamelled wires are wound at the middle positions of the upper end and the lower end of the seventh layer of insulating film, the circles of the seventh layer of circles of polyurethane enamelled wires are the same as the circles of the sixth layer of circles of polyurethane enamelled wires, the head end VII and the tail end VII of the seventh layer extend out of the upper end and the lower end of the framework along the axial direction of the framework, the same distance G is reserved between the same side wall of the head end VII and the tail end VII of the seventh layer of insulating film and the same side wall of the head end VI of the sixth layer of insulating film, the distance G is the same as the distance F, and sleeves are respectively penetrated on the head end VII and the tail end VII of the seventh layer of insulating film;
an eighth layer of polyurethane enameled wires are wound on a plurality of circles of polyurethane enameled wires after the seventh layer of winding, the same distance H is reserved between the upper end and the lower end of the eighth layer of insulating film and the upper end and the lower end of the seventh layer of insulating film, the eighth layer of polyurethane enameled wires are wound on the middle positions of the upper end and the lower end of the eighth layer of insulating film, the number of circles of the eighth layer of polyurethane enameled wires is the same as that of the seventh layer of polyurethane enameled wires, the head end VIII and the tail end VIII of the eighth layer extend out of the upper end and the lower end of the framework along the axial direction of the framework, the same distance H is reserved between the same side walls of the head end VIII and the tail end VIII of the eighth layer and the same side walls of the head end VII and the tail end VII of the seventh layer, the distance H is the same as the distance G, and sleeves are respectively penetrated on the head end VIII and the tail end VIII of the eighth layer;
a ninth step of winding a ninth layer wire, coating a ninth layer insulating film on a plurality of circles of polyurethane enamelled wires after the eighth layer wire winding, keeping the same distance between the upper end and the lower end of the ninth layer insulating film and the upper end and the lower end of the eighth layer insulating film, winding a ninth layer of circles of polyurethane enamelled wires at the middle positions of the upper end and the lower end of the ninth layer insulating film, winding the same circles of the ninth layer of circles of polyurethane enamelled wires and the eighth layer of circles of polyurethane enamelled wires, enabling a ninth layer of starting end IX and a tail end IX to extend out of the upper end and the lower end of the skeleton along the axial direction of the skeleton, keeping the same distance I between the same side walls of the ninth layer of starting end IX and the tail end IX and the same side walls of the eighth layer of starting end VIII and the tail end VIII, enabling the distance I to be the same as the distance H, and respectively penetrating through sleeves on the ninth layer of starting end IX and the tail end IX;
a tenth step of winding a tenth layer wire, coating a tenth layer insulating film on a plurality of circles of polyurethane enamelled wires after the ninth layer wire winding, leaving the same distance between the upper and lower ends of the tenth layer insulating film and the upper and lower ends of the ninth layer insulating film, winding a tenth layer of circles of polyurethane enamelled wires at the middle positions of the upper and lower ends of the tenth layer insulating film, winding the same circles of the tenth layer of circles of polyurethane enamelled wires and the ninth layer of circles of polyurethane enamelled wires, enabling a tenth layer of starting end X and a tail end X to extend out of the upper and lower ends of the skeleton along the axial direction of the skeleton, leaving the same distance J between the same side walls of the tenth layer of starting end X and the tail end X and the same side walls of the ninth layer of starting end IX, enabling the distance J to be the same as the distance I, and respectively penetrating through sleeves on the tenth layer of starting end X and the tail end X;
an eleventh step of wrapping copper sheets, namely wrapping a plurality of circles of polyurethane enamelled wires after the tenth layer of winding with an eleventh layer of insulating film, keeping the same distance between the upper end and the lower end of the eleventh layer of insulating film and the upper end and the lower end of the tenth layer of insulating film, wrapping a circle of copper sheets at the middle position of the upper end and the lower end of the eleventh layer of insulating film, enabling a starting end X of the tenth layer to extend out of the upper end of the framework along the axial direction of the framework, enabling a tail end X of the tenth layer to be connected with the copper sheets, and welding leads on the tail end X of the copper sheets;
and a twelfth step of testing, namely testing resistance and turns, packaging and warehousing.
The beneficial effects of the invention are as follows: the invention improves the phenomena of arc discharge and breakdown caused by insufficient creepage distance between the original windings or between the outgoing lines, changes the original winding method and the adoption of insulating materials with the same width into grouping winding and adopts the insulating materials with the gradually decreasing width to realize stepped arrangement, compared with the insulation with the same width, maximizes the creepage distance of the outgoing lines in a limited space after assembly, increases the creepage distance of the outgoing lines by at least 3mm, ensures the insulation distance better for the outgoing lines of N windings, effectively reduces the phenomena of arc discharge and breakdown, and increases the reliability and the service life of products. Meanwhile, the winding structures are the same, and the production operation is simpler and more convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a first layer of windings according to the present invention;
FIG. 3 is a second layer of windings of the present invention;
FIG. 4 is a schematic view of a third layer of windings according to the present invention;
FIG. 5 is a schematic view of a fourth layer of windings according to the present invention;
FIG. 6 is a schematic view of a fifth layer of windings according to the present invention;
FIG. 7 is a schematic view of a sixth layer of windings according to the present invention;
FIG. 8 is a schematic view of a seventh layer of windings according to the present invention;
FIG. 9 is a schematic view of an eighth layer of windings according to the present invention;
FIG. 10 is a schematic view of a ninth layer of windings according to the present invention;
FIG. 11 is a schematic view of a tenth layer of windings according to the present invention;
FIG. 12 is a schematic view of the final winding tail treatment of the present invention;
fig. 13 is a schematic structural view of an insulating film of the present invention.
Detailed Description
As shown in fig. 1 and 13, a method for guaranteeing insulation distance of a high-voltage coil comprises a framework 1, an insulation film 2, an enameled wire 3, a sleeve, a copper sheet 4 and a lead 5.
The framework 1 is of a rectangular hollow structure, and the section of the framework is square.
The insulating film 2 is composed of two layers of Nomex paper 2-1, and a high temperature resistant polyester film 2-2 is arranged between the two layers of Nomex paper 2-1.
The method comprises the following steps:
the first step, as shown in fig. 2, wrapping a first layer of insulating film 2 around a first layer of wire, winding a first layer of polyurethane enameled wire 3 around the middle position of the upper end and the lower end of one surface of a framework 1, extending the first layer of head end I3-1 and tail end I3-11 out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, leaving the same distance A between the side walls of the same direction of the first layer of head end I3-1 and the tail end I3-11 and the right side edge of the framework 1, and respectively penetrating sleeves on the first layer of head end I3-1 and the tail end I3-11;
the width of the first insulating film 2 was 125mm and the distance a was 7mm.
A second layer of wire is wound, as shown in fig. 3, a plurality of circles of polyurethane enameled wires 3 after the first layer of wire winding are coated with a second layer of insulating film 2, the same distance is reserved between the upper end and the lower end of the second layer of insulating film 2 and the upper end and the lower end of the first layer of insulating film 2, the second layer of circles of polyurethane enameled wires 3 are wound at the middle positions of the upper end and the lower end of the second layer of insulating film 2, the number of circles of the second layer of polyurethane enameled wires 3 is the same as the number of circles of the first layer of circles of polyurethane enameled wires 3, the second layer of starting ends II 3-2 and the tail ends II 3-21 extend out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, the same distance B is reserved between the same as the same distance A between the same as the first layer of starting ends I3-1 and the same as the same side walls of the tail ends I3-11, and sleeves are respectively penetrated on the second layer of starting ends II 3-2 and the tail ends II-21;
the width of the second insulating film 2 was 114mm and the distance B was 7mm.
The third step, as shown in fig. 4, wrapping a third layer of insulating film 2 on a plurality of circles of polyurethane enameled wires 3 wound on the second layer of wire, keeping the same distance between the upper end and the lower end of the third layer of insulating film 2 and the upper end and the lower end of the second layer of insulating film 2, winding a third layer of polyurethane enameled wires 3 on the middle position of the upper end and the lower end of the third layer of insulating film 2, winding the same circles of the third layer of polyurethane enameled wires 3 and the second layer of polyurethane enameled wires 3, extending the upper end and the lower end of the framework 1 along the axial direction of the framework 1 by the third layer of head ends III 3-3 and the tail ends III-31, keeping the same distance C between the same side walls of the third layer of head ends III-3 and the tail ends III-31 and the same side walls of the second layer of head ends II 3-2 and the tail ends II 3-21, respectively threading sleeves on the third layer of head ends III-3 and the tail ends III-31;
the third insulating film 2 had a width of 108mm and a distance C of 7mm.
A fourth step of wrapping a fourth layer of insulating film 2 on a plurality of circles of polyurethane enameled wires 3 wound on a third layer of wire as shown in fig. 5, keeping the same distance between the upper end and the lower end of the fourth layer of insulating film 2 and the upper end and the lower end of the third layer of insulating film 2, winding a fourth layer of circles of polyurethane enameled wires 3 on the middle position of the upper end and the lower end of the fourth layer of insulating film 2, enabling the fourth layer of circles of polyurethane enameled wires 3 to be the same as the third layer of circles of polyurethane enameled wires 3, enabling the fourth layer of starting ends IV 3-4 and the tail ends IV 3-41 to extend out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, keeping the same distance D between the same as the third layer of starting ends III 3-3 and the same as the tail ends III 3-31, and enabling the fourth layer of starting ends IV 3-4 and the tail ends IV 3-41 to penetrate through sleeves respectively;
the width of the fourth insulating film 2 was 100mm and the distance D was 7mm.
A fifth step of wrapping a fifth layer of wire with a fifth layer of wire as shown in fig. 6, coating a fifth layer of insulating film 2 on a plurality of turns of polyurethane enameled wire 3 wound on the fourth layer of wire, keeping the same distance between the upper and lower ends of the fifth layer of insulating film 2 and the upper and lower ends of the fourth layer of insulating film 2, winding a fifth layer of polyurethane enameled wire 3 on the middle position of the upper and lower ends of the fifth layer of insulating film 2, winding the fifth layer of polyurethane enameled wire 3 with the same turns of polyurethane enameled wire 3 on the fourth layer of wire, enabling a fifth layer of starting end V3-5 and a tail end V3-51 to extend out of the upper and lower ends of the framework 1 along the axial direction of the framework 1, keeping the same distance E between the same side walls of the fifth layer of starting end V3-5 and the tail end V3-51 and the same side walls of the fourth layer of starting end IV 3-4 and the tail end IV 3-41, and respectively threading sleeves on the fifth layer of starting end V3-5 and the tail end V3-51;
the fifth layer insulating film 2 had a width of 94mm and a distance E of 7mm.
A sixth step of rotating the framework 1 clockwise by 90 degrees around a sixth layer of wires as shown in fig. 7, coating a sixth layer of insulating film 2 on a plurality of circles of polyurethane enameled wires 3 wound on the fifth layer on the other surface of the framework 1, keeping the same distance between the upper end and the lower end of the sixth layer of insulating film 2 and the upper end and the lower end of the fifth layer of insulating film 2, winding a sixth layer of polyurethane enameled wires 3 around the middle position of the upper end and the lower end of the sixth layer of insulating film 2, winding the sixth layer of polyurethane enameled wires 3 the same as the fifth layer of polyurethane enameled wires 3 in a circle, extending the sixth layer of starting ends VI 3-6 and the tail ends VI 3-61 out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, keeping the same distance F between the same side walls of the sixth layer of starting ends VI (3-6) and the tail ends VI 3-61 and the right side edges of the framework 1, and respectively sleeving the sixth layer of starting ends VI 3-6 and the tail ends VI 3-61;
the width of the sixth insulating film 2 was 88mm and the distance F was 7mm.
A seventh step of wrapping a seventh layer of wires around the seventh layer of wires, as shown in fig. 8, a seventh layer of insulating film 2 is wrapped on a plurality of circles of polyurethane enameled wires 3 after the sixth layer of wires are wrapped, the same distance is reserved between the upper end and the lower end of the seventh layer of insulating film 2 and the upper end and the lower end of the sixth layer of insulating film 2, a seventh layer of circles of polyurethane enameled wires 3 are wrapped at the middle positions of the upper end and the lower end of the seventh layer of insulating film 2, the circles of the seventh layer of polyurethane enameled wires 3 are the same as the circles of the sixth layer of polyurethane enameled wires 3, the seventh layer of starting ends VII 3-7 and the tail ends VII 3-71 extend out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, the same distance G is reserved between the same as the same distance F between the same as the same side walls of the sixth layer of starting ends VI 3-6 and the tail ends VI 3-61, and the seventh layer of starting ends VII 3-7 and tail ends VII-71 are respectively sleeved on the seventh layer of starting ends VII 3-7 and tail ends VII-71;
the seventh insulating film 2 has a width of 80mm and a distance G of 7mm.
An eighth step of wrapping an eighth layer of wire around an eighth layer of wire, as shown in fig. 9, on a plurality of circles of polyurethane enameled wires 3 after the seventh layer of wire wrapping, leaving the same distance between the upper end and the lower end of the eighth layer of insulating film 2 and the upper end and the lower end of the seventh layer of insulating film 2, winding an eighth layer of circles of polyurethane enameled wires 3 around the middle position of the upper end and the lower end of the eighth layer of insulating film 2, wherein the circles of the eighth layer of polyurethane enameled wires 3 and the circles of the seventh layer of polyurethane enameled wires 3 are the same, the eighth layer of starting ends VIII 3-8 and the tail ends VIII 3-81 extend out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, the same distance H is left between the same with the same side walls of the seventh layer of starting ends VII 3-7 and the tail ends VII 3-71, and the eighth layer of starting ends VIII 3-8 and the tail ends VIII 3-81 are respectively sleeved on the eighth layer of starting ends VIII-8 and the eighth layer of starting ends VIII 3-81;
the eighth insulating film 2 had a width of 74mm and a distance H of 7mm.
A ninth step of wrapping a ninth layer of insulating film 2 on a plurality of circles of polyurethane enameled wires 3 wound on a eighth layer of wire, wherein the same distance is reserved between the upper end and the lower end of the ninth layer of insulating film 2 and the upper end and the lower end of the eighth layer of insulating film 2, the ninth layer of polyurethane enameled wires 3 are wound on the middle positions of the upper end and the lower end of the ninth layer of insulating film 2, the number of circles of the ninth layer of polyurethane enameled wires 3 and the number of circles of the eighth layer of polyurethane enameled wires 3 are the same, the head ends IX 3-9 and the tail ends IX 3-9 of the ninth layer extend out of the upper end and the lower end of the framework 1 along the axial direction of the framework 1, the same distance I is reserved between the same side walls of the head ends IX 3-9 and the tail ends IX 3-8 of the eighth layer, the distance I is the same as the distance H, and sleeves are respectively sleeved on the head ends IX 3-9 and the tail ends IX 3-9 of the ninth layer;
the ninth insulating film 2 had a width of 60mm and a distance I of 7mm.
A tenth step of wrapping a tenth layer of insulating film 2 around a tenth layer of wire, as shown in fig. 11, on a plurality of turns of polyurethane enameled wire 3 wound on a ninth layer of wire, leaving the same distance between the upper and lower ends of the tenth layer of insulating film 2 and the upper and lower ends of the ninth layer of insulating film 2, winding a tenth layer of polyurethane enameled wire 3 around the middle position of the upper and lower ends of the tenth layer of insulating film 2, winding the tenth layer of polyurethane enameled wire 3 the same as the ninth layer of polyurethane enameled wire 3 in turns, extending the upper and lower ends of the skeleton 1 along the axial direction of the skeleton 1 by a tenth layer of head ends X3-10 and tail ends X3-101, leaving the same distance J between the same side walls of the tenth layer of head ends X3-10 and tail ends X3-9 and the same distance I, and sleeving sleeves on the tenth layer of head ends X3-10 and tail ends X3-101 respectively;
the tenth insulating film 2 had a width of 50mm and a distance J of 7mm.
The eleventh step, as shown in fig. 12, wrapping the eleventh layer of insulating film 2 on the polyurethane enamelled wire 3 of several circles after the tenth layer of winding, keeping the same distance between the upper and lower ends of the eleventh layer of insulating film 2 and the upper and lower ends of the tenth layer of insulating film 2, wrapping a circle of copper sheet 4 on the middle position of the upper and lower ends of the eleventh layer of insulating film 2, extending the head end X3-10 of the tenth layer out of the upper end of the framework 1 along the axial direction of the framework 1, connecting the head end X3-101 of the tenth layer with the copper sheet 4, and welding the lead 5 on the head end X3-101 of the copper sheet;
the width of the eleventh insulating film 2 was 45mm.
And a twelfth step of testing, namely testing resistance and turns, packaging and warehousing.
The enameled wire 3 is a polyurethane enameled wire.
The sleeve is a Teflon sleeve, so that the insulation strength of the output outgoing line is enhanced.
The insulating film 2 is composed of two layers of NOMEX Nomex paper 2-1, and a PET high-temperature-resistant polyester film 2-2 is arranged between the two layers of NOMEX Nomex paper, and insulating films with different widths are adopted to ensure the insulating distance to the greatest extent.
Claims (3)
1. A method for guaranteeing the insulation distance of a high-voltage coil is characterized by comprising the following steps: comprises a framework (1), an insulating film (2), an enameled wire (3), a copper sheet (4) and a lead (5);
the framework (1) is of a rectangular hollow structure, and the section of the framework is square;
the insulating film (2) is composed of two layers of Normei paper (2-1) and a high-temperature-resistant polyester film (2-2) in the middle;
the steps are as follows,
the method comprises the steps of firstly, wrapping a first layer of insulating film (2) at the middle position of the upper end and the lower end of one surface of a framework (1), winding a first layer of round polyurethane enameled wires (3) at the middle position of the upper end and the lower end of the first layer of insulating film (2), enabling a first layer of head end I (3-1) and a tail end I (3-11) to extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), enabling the same section of distance A to be reserved between the side walls of the first layer of head end I (3-1) and the tail end I (3-11) in the same direction and the right side edge of the framework (1), and enabling sleeves to penetrate through the first layer of head end I (3-1) and the tail end I (3-11) respectively;
a second layer of wire is wound, a plurality of circles of polyurethane enameled wires (3) after the first layer of wire winding are coated with a second layer of insulating film (2), the same distance is reserved between the upper end and the lower end of the second layer of insulating film (2) and the upper end and the lower end of the first layer of insulating film (2), the second layer of circles of polyurethane enameled wires (3) are wound at the middle positions of the upper end and the lower end of the second layer of insulating film (2), the circles of the second layer of circles of polyurethane enameled wires (3) are the same as the circles of the first layer of circles of polyurethane enameled wires (3), a second layer of starting end II (3-2) and a tail end II (3-21) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance B is reserved between the same as the same distance A between the same side walls of the first layer of starting end I (3-1) and the tail end I (3-11), and the second layer of starting end II (3-2) and the tail end II (3-21) respectively penetrate through sleeves on the second layer of starting end II (3-2) and the tail end II (3-21);
the third layer of wire winding is carried out, a plurality of circles of polyurethane enameled wires (3) after the second layer of wire winding are coated with a third layer of insulating film (2), the same distance is reserved between the upper end and the lower end of the third layer of insulating film (2) and the upper end and the lower end of the second layer of insulating film (2), the third layer of circles of polyurethane enameled wires (3) are wound at the middle positions of the upper end and the lower end of the third layer of insulating film (2), the circles of the third layer of circles of polyurethane enameled wires (3) are the same as the circles of the second layer of circles of polyurethane enameled wires (3), the upper end and the lower end of a third layer of starting end III (3-3) and a tail end III (3-31) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance C is reserved between the same as the same distance C between the same as the second layer of starting end II (3-2) and the same as the distance B, and the same distance C is respectively worn on the third layer of starting end III (3-3) and tail end III-31;
a fourth layer of wire is wound, a plurality of circles of polyurethane enameled wires (3) after the third layer of wire winding are coated with a fourth layer of insulating film (2), the same distance is reserved between the upper end and the lower end of the fourth layer of insulating film (2) and the upper end and the lower end of the third layer of insulating film (2), the fourth layer of polyurethane enameled wires (3) are wound at the middle positions of the upper end and the lower end of the fourth layer of insulating film (2), the circles of the fourth layer of polyurethane enameled wires (3) are the same as the circles of the third layer of polyurethane enameled wires (3), the fourth layer of starting end IV (3-4) and the tail end IV (3-41) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance D is reserved between the same as the distance C between the same as the same side walls of the third layer of starting end III (3-3) and the tail end III (3-31), and the fourth layer of starting end IV (3-4) and the tail end IV (3-41) respectively penetrate through sleeves;
a fifth step of winding a fifth layer wire, namely wrapping a plurality of circles of polyurethane enameled wires (3) after the fourth layer wire winding with a fifth layer insulating film (2), keeping the same distance between the upper end and the lower end of the fifth layer insulating film (2) and the upper end and the lower end of the fourth layer insulating film (2), winding the fifth layer of circles of polyurethane enameled wires (3) at the middle position of the upper end and the lower end of the fifth layer insulating film (2), winding the fifth layer of circles of polyurethane enameled wires (3) with the fourth layer of circles of polyurethane enameled wires (3) at the same number of circles, enabling a fifth layer of starting end V (3-5) and a tail end V (3-51) to extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), keeping the same distance E between the same side walls of the fifth layer of starting end IV (3-4) and the tail end IV (3-41), and respectively penetrating the fifth layer of starting end V (3-5) and the tail end V (3-51) on the sleeves;
a sixth step of clockwise rotating the framework (1) by 90 degrees around a sixth layer of wires, coating a plurality of rings of polyurethane enamelled wires (3) which are wound by a fifth layer on the other surface of the framework (1) with a sixth layer of insulating films (2), keeping the same distance between the upper and lower ends of the sixth layer of insulating films (2) and the upper and lower edges of the fifth layer of insulating films (2), winding a sixth layer of rings of polyurethane enamelled wires (3) at the middle position of the upper and lower ends of the sixth layer of insulating films (2), winding the sixth layer of rings of polyurethane enamelled wires (3) with the same number of rings of polyurethane enamelled wires (3) at the fifth layer, extending the upper and lower ends of the framework (1) along the axial direction of the framework (1), keeping the same distance F between the same directional side walls of the sixth layer of starting ends VI (3-6) and the tail ends VI (3-61) and the right side edges of the framework (1), and putting through the sixth layer of starting ends VI (3-6) and the tail ends VI (3-61) along the sleeve pipe respectively;
a seventh layer of wire is wound, a seventh layer of insulating film (2) is coated on a plurality of circles of polyurethane enamelled wires (3) after the sixth layer of wire winding, the same distance is reserved between the upper end and the lower end of the seventh layer of insulating film (2) and the upper end and the lower end of the sixth layer of insulating film (2), a seventh layer of circles of polyurethane enamelled wires (3) are wound at the middle positions of the upper end and the lower end of the seventh layer of insulating film (2), the circles of the seventh layer of circles of polyurethane enamelled wires (3) are the same as the circles of the sixth layer of circles of polyurethane enamelled wires (3), the seventh layer of starting ends VII (3-7) and the tail ends VII (3-71) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance G is reserved between the same as the same distance F between the same side walls of the sixth layer of starting ends VI (3-6) and the same as the same side walls of the tail ends VI (3-61), and the seventh layer of starting ends VII (3-7) and the tail ends VII (3-71) are sleeved on the seventh layer of starting ends (3-7) and the seventh layer of polyurethane enamelled wires;
an eighth layer of polyurethane enameled wires (3) are wrapped on a plurality of circles of polyurethane enameled wires (3) after winding of the seventh layer, the same distance is reserved between the upper end and the lower end of the eighth layer of insulating films (2) and the upper end and the lower end of the seventh layer of insulating films (2), the eighth layer of polyurethane enameled wires (3) are wrapped at the middle positions of the upper end and the lower end of the eighth layer of insulating films (2), the number of circles of the eighth layer of polyurethane enameled wires (3) is the same as that of the seventh layer of polyurethane enameled wires (3), the eighth layer of starting ends VIII (3-8) and the eighth layer of tail ends VIII (3-81) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance H is reserved between the same as the seventh layer of starting ends VII (3-7) and the same as the seventh layer of starting ends VII (3-71), and the distances H are the distances G are the eighth layer of starting ends VIII (3-8) and the eighth layer of starting ends VIII (3-81) and the eighth layer of polyurethane enameled wires are respectively sleeved on the eighth layer of the seventh layer of insulating films (3-8) respectively;
a ninth step of winding a ninth layer wire, namely wrapping a plurality of circles of polyurethane enameled wires (3) after the eighth layer wire winding with a ninth layer insulating film (2), wherein the same distance is reserved between the upper end and the lower end of the ninth layer insulating film (2) and the upper end and the lower end of the eighth layer insulating film (2), the ninth layer of circles of polyurethane enameled wires (3) are wrapped at the middle position of the upper end and the lower end of the ninth layer insulating film (2), the circles of the ninth layer of circles of polyurethane enameled wires (3) are the same as the circles of the eighth layer of circles of polyurethane enameled wires (3), the ninth layer of leading end IX (3-9) and the tail end IX (3-9) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance I is reserved between the same side walls of the ninth layer of leading end IX (3-9) and the eighth layer of leading end VIII (3-8) and the same side walls of the eighth layer of trailing end IX (3-81), and the distance I is the same as the distance H is reserved between the ninth layer of leading end IX (3-9) and the eighth layer of leading end IX (3-81), and the ninth layer of leading end IX (3-9) and the ninth layer of enameled wires respectively extend through the sleeve on the ninth layer of the framework (3-9 and the eighth layer of the eighth layer wire;
a tenth step of winding a tenth layer wire, namely wrapping a tenth layer insulating film (2) on a plurality of circles of polyurethane enameled wires (3) after the ninth layer wire winding, wherein the same distance is reserved between the upper end and the lower end of the tenth layer insulating film (2) and the upper end and the lower end of the ninth layer insulating film (2), the tenth layer of circles of polyurethane enameled wires (3) are wrapped at the middle position of the upper end and the lower end of the tenth layer insulating film (2), the circles of the tenth layer of circles of polyurethane enameled wires (3) are the same as the circles of the ninth layer of circles of polyurethane enameled wires (3), the tenth layer head end X (3-10) and the tail end X (3-101) extend out of the upper end and the lower end of the framework (1) along the axial direction of the framework (1), the same distance J is reserved between the same side walls of the tenth layer head end X (3-10) and the tail end X (3-101) and the same side walls of the ninth layer head end X (3-9), and the distance J is the same as the distance I, and the tenth layer head end X (3-10) and the tail end X (3-9) are respectively penetrated through the sleeves;
an eleventh step of wrapping copper sheets, namely wrapping an eleventh layer of insulating film (2) on a plurality of circles of polyurethane enameled wires (3) which are wound on a tenth layer of wire, keeping the same distance between the upper end and the lower end of the eleventh layer of insulating film (2) and the upper end and the lower end of the tenth layer of insulating film (2), wrapping a circle of copper sheets (4) on the middle positions of the upper end and the lower end of the eleventh layer of insulating film (2), enabling a tenth layer of starting end X (3-10) to extend out of the upper end of the framework (1) along the axial direction of the framework (1), enabling a tenth layer of tail end X (3-101) to be connected with the copper sheets (4), and welding leads (5) on the tail end X (3-101) of the copper sheets;
and a twelfth step of testing, namely testing resistance and turns, packaging and warehousing.
2. The method for ensuring the insulation distance of the high-voltage coil according to claim 1, wherein: the enameled wire (3) is a polyurethane enameled wire.
3. The method for ensuring the insulation distance of the high-voltage coil according to claim 1, wherein: the sleeve is a teflon sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435979.5A CN107808762B (en) | 2017-12-26 | 2017-12-26 | Method for guaranteeing insulation distance of high-voltage coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435979.5A CN107808762B (en) | 2017-12-26 | 2017-12-26 | Method for guaranteeing insulation distance of high-voltage coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107808762A CN107808762A (en) | 2018-03-16 |
| CN107808762B true CN107808762B (en) | 2023-05-26 |
Family
ID=61590114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435979.5A Active CN107808762B (en) | 2017-12-26 | 2017-12-26 | Method for guaranteeing insulation distance of high-voltage coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107808762B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528013U (en) * | 1991-09-17 | 1993-04-09 | 松下電器産業株式会社 | Trance |
| JPH06188126A (en) * | 1992-12-16 | 1994-07-08 | Matsushita Electric Ind Co Ltd | High voltage transformer and bobbing therefor |
| CN201478064U (en) * | 2009-06-30 | 2010-05-19 | 刘清伟 | Winding structure of transformer |
| CN201629218U (en) * | 2009-11-30 | 2010-11-10 | 平高集团有限公司 | Potential transformer |
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
-
2017
- 2017-12-26 CN CN201711435979.5A patent/CN107808762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528013U (en) * | 1991-09-17 | 1993-04-09 | 松下電器産業株式会社 | Trance |
| JPH06188126A (en) * | 1992-12-16 | 1994-07-08 | Matsushita Electric Ind Co Ltd | High voltage transformer and bobbing therefor |
| CN201478064U (en) * | 2009-06-30 | 2010-05-19 | 刘清伟 | Winding structure of transformer |
| CN201629218U (en) * | 2009-11-30 | 2010-11-10 | 平高集团有限公司 | Potential transformer |
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107808762A (en) | 2018-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208315366U (en) | transformer | |
| CN103503091B (en) | Continuous print transposed conductor | |
| CN103474216B (en) | Insulation structure of transformer coil and manufacturing method of insulation structure | |
| US20160233018A1 (en) | Transformer winding, transformer having the same and manufacturing method thereof | |
| CN107808762B (en) | Method for guaranteeing insulation distance of high-voltage coil | |
| CN103151904A (en) | High-power, high-frequency pulse and high-voltage rectifying transformer | |
| CN101620923B (en) | Method for replacing double/quadruple helix coil of transformer with long-circle section | |
| CN104376981B (en) | A kind of switching mode power supply transformer combined magnet core | |
| CN102360797B (en) | Radial double split foil winding and winding method thereof | |
| CN103490543B (en) | A kind of motor coil rewinding magnet-wire | |
| CN201166998Y (en) | Transposition conductor for PET polyester film | |
| CN201765932U (en) | Single-phase traction transformer for three-phase VX connection of AT power supply mode | |
| CN201629202U (en) | Parallel composite transposition lead | |
| CN207097636U (en) | A kind of coil block and the electric equipment using the coil block | |
| CN107527730A (en) | A kind of coil block and the electric equipment and its manufacture method using the coil block | |
| CN208141851U (en) | Kufil high intensity continuous transposed conductor | |
| CN202373431U (en) | Coil device, compound coil device and planar transformer | |
| CN203151362U (en) | High-power high-frequency impulse high-voltage rectifier transformer | |
| CN201302834Y (en) | Three-layer insulation stranded wires used for high-frequency coil | |
| CN203386584U (en) | Low-voltage coil of dry type transformer | |
| CN204178895U (en) | A kind of low-voltage coil structure of transformer | |
| CN203631279U (en) | Transformer coil insulating structure | |
| CN115132469A (en) | High-voltage coil and winding method thereof | |
| CN204497034U (en) | 35kV oil-immersed transformer high-voltage coils | |
| CN217847690U (en) | Wire for high-voltage coil with variable insulation thickness and high-voltage coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180930 Address after: 300211 No. 6, Taishan Road, Tianjin, Hexi District Applicant after: TIANJIN HUIGAO MAGNETICS Co.,Ltd. Address before: 300211 No. 6, Taishan Road, Tianjin, Hexi District Applicant before: TIANJIN PHOTOELECTRIC RUNDA ELECTRONICS Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |