CN112038071B

CN112038071B - High-frequency transformer framework structure and winding method thereof

Info

Publication number: CN112038071B
Application number: CN202010798912.3A
Authority: CN
Inventors: 陆立峰; 周晓强; 周家民
Original assignee: WUXI XINCHANG ELECTRON FACTORY
Current assignee: WUXI XINCHANG ELECTRON FACTORY
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2022-07-05
Anticipated expiration: 2040-08-11
Also published as: CN112038071A

Abstract

The invention discloses a high-frequency transformer framework structure, which comprises a winding wire slot; the top parts of the two sides of the winding wire slot are respectively and fixedly provided with a first platform and a second platform; winding bosses are respectively arranged on the first platform and the second platform close to the middle part of the winding slot; a plurality of wiring grooves are formed in the winding boss; the middle parts of the plurality of wiring grooves are obliquely and downwards communicated with the inside of the winding wire grooves towards one side of the middle parts of the winding wire grooves. The high-frequency transformer framework structure and the winding method thereof can effectively enable the transformer to have a good insulation effect and enhance the working efficiency of the transformer.

Description

High-frequency transformer framework structure and winding method thereof

Technical Field

The invention relates to the field of transformer frameworks, in particular to a transformer winding method.

Background

The electric meter transformer is formed by combining a plurality of independent windings, and in order to meet the safety requirement of the transformer, the windings are required to be mutually isolated, and a large number of transformers are required under the condition of huge power consumption, so that in order to improve the production capacity of the transformer, the transformer is required to meet the requirement of automatic machine production; and the use effect of the transformer can be effectively improved by combining with a plurality of better winding methods; meanwhile, some protection and protection structures for the transformer are added, so that the transformer can be prevented from being damaged, and the service time is prolonged.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the high-frequency transformer framework structure and the winding method thereof provided by the invention can effectively enable the transformer to have a good insulation effect and enhance the working efficiency of the transformer.

The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:

a high-frequency transformer framework structure comprises a winding wire slot; the top parts of the two sides of the winding wire slot are respectively and fixedly provided with a first platform and a second platform; winding bosses are respectively arranged on the first platform and the second platform close to the middle part of the winding slot; a plurality of wiring grooves are formed in the winding boss; the middle parts of the plurality of wiring grooves are obliquely and downwards communicated with the inside of the winding wire grooves towards one side of the middle parts of the winding wire grooves. The end of the enameled wire of the winding is separated by the wiring groove, so that the independence of the winding is increased, and the safety requirement is met.

Further, the winding boss comprises a first winding table and a second winding table; a plurality of wiring grooves are respectively formed in the first winding table and the second winding table; the first winding table is fixed on the first platform; the second winding table is fixed on the second platform. The winding head and the winding tail are wound with the legs from different winding bosses, so that the independence among the windings can be avoided.

Furthermore, the winding wire slot is annularly formed, and convex edges are circumferentially and fixedly arranged on the inner walls of two sides of the winding wire slot; the inclined lower ends of the wiring grooves correspond to the convex edges; the convex edges are provided with wire accommodating openings; the wiring groove on the first winding table corresponds to the wire accommodating opening. The protruding edges increase the strength of the transformer framework, reduce the winding covering and retaining wall process and improve the working efficiency.

Furthermore, a plurality of lug bosses are arranged between a plurality of wiring grooves on the first winding table and the second winding table, and winding leg columns are respectively and fixedly arranged on the lug bosses correspondingly; one side, away from the middle part of the winding wire slot, of the protruding table is fixedly provided with a wire hanging point, and the number of winding legs of the wire hanging point corresponds to that of the winding legs. The wire hanging point is convenient for the winding of an automatic machine, and the short circuit caused by the over-deep soldering tin can be prevented after the wire length is increased.

Furthermore, support foot blocks are symmetrically and fixedly arranged at the tops of two ends of the first winding table and the second winding table respectively; a supporting plane is formed between the support foot blocks on the first winding table and the second winding table; guide columns are fixedly arranged in the middle of the surfaces of the plurality of supporting foot blocks respectively. The circuit board is convenient to install, and the stability is improved.

Furthermore, a partition plate is arranged in a wiring groove in the middle of the first winding table; and the enameled wires of the winding are separated, so that the two strands of enameled wires are prevented from being adhered and short-circuited after soldering.

Furthermore, the winding leg column on the convex platform on the first winding platform sequentially comprises a winding leg column I, a winding leg column II, a winding leg column III and a winding leg column IV; the foot winding column IV corresponds to the line accommodating port; and the lug winding column on the convex platform on the second winding platform sequentially comprises a fifth lug winding column, a sixth lug winding column, an eighth lug winding column and a ninth lug winding column.

Further, the device also comprises a base; the base is of a hollow rectangular structure; the base is provided with a plurality of conical holes; the conical hole penetrates through the base along the hollow direction; the foot winding columns respectively penetrate through the conical holes correspondingly, and the smaller ends of the conical holes are far away from the convex platforms; positioning holes are respectively formed in the four corners of the base; the guide posts are correspondingly embedded into the positioning holes; supporting blocks are arranged at four corners of the other end, opposite to the positioning hole, of the base; a fixing column is arranged on the opposite angle of one side of the supporting block, which is far away from the boss; grid baffles are arranged around the periphery of one end of the base, which is far away from the supporting block; the height of the grid baffle is greater than that of the support foot blocks.

Furthermore, the edges of one sides of the first platform and the second platform, which are far away from the winding boss, are respectively provided with a guide notch; the mounting feet of the shielding cover are correspondingly embedded in the guide groove openings, and the shielding cover covers the winding of the winding wire slot; the magnetic circuit of the transformer is prevented from being influenced by the outside;

a reinforcing plate is fixedly arranged on the side wall of one end of the winding wire slot, which is far away from the winding boss; a plurality of oblique angle plates and a rectangular plate are clamped between the reinforcing plate and the side wall of the winding slot, and one side of the reinforcing plate, which is far away from the winding boss, is arranged; has foolproof effect.

Further, after winding a foot at the root of the winding leg column, drawing the enameled wire to be hung on a corresponding hanging point of the winding leg column, wherein the wire gauge of the enameled wire is phi 0.14 x 2, and a 28L-sized sleeve needs to be sleeved at the starting position; later draw forth to wire winding inslot from the wire casing of twining foot post a left side, the corresponding wire winding of enameled wire adopts the mode of close winding to wind 23 circles in full circle on the wire winding groove between the barricade of both sides, and the tail wire does not twine the foot after the winding, and the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

after the enameled wire of the automatic winding machine winds the feet at the root parts of the second foot winding columns, the enameled wire is drawn to be hung on the wire hanging points corresponding to the second foot winding columns, and sleeves with the specification of 28L are sleeved at the head and the tail parts during winding; leading out the enameled wire from the wiring groove on the left side of the second foot winding column to the wiring groove, wherein the left side and the right side of each two layers are respectively wrapped with 1 circle of a 2mm retaining wall, the corresponding winding of the enameled wire is wound on the wiring groove between the retaining walls on the two sides in a close winding mode, the first layer is wound with 37 circles, the second layer is wound with 36 circles, the third layer is wound with 35 circles, the fourth layer is wound with 26 circles, each layer is wrapped with 12.5mm in thickness, polyimide is wound for 1 circle for isolation, after winding, the enameled wire is pulled to pass through the wiring groove on the left side of the first foot winding column, then the wire is hung on the corresponding wire hanging point of the first foot winding column, and finally the foot is wound on the root of the first foot winding column; the specification of the external insulating tape is as follows: winding 3 circles of polyimide with the thickness of 12.5mm, and padding a tail end line at the initial position of the external insulating tape;

after the enameled wire of the automatic winding machine winds the three roots of the leg winding column, the enameled wire is drawn to be led out to the winding wire slot from the wiring slot on the right side of the leg winding column three, the starting wire is isolated from the lead wire of the leg winding column two through a partition plate, the wire gauge of the enameled wire is phi 0.14 x 2, and sleeves with the specification of 28L are sleeved at the head and the tail during winding; the left side and the right side of the enameled wire are wrapped by 1 circle of a 2mm retaining wall, the corresponding winding of the enameled wire is wound on winding wire grooves in the convex edges at the two sides for 18 circles in a centered and densely-wound mode, the enameled wire is drawn to pass through wiring grooves at the right sides of the foot winding columns, then the hanging wire is arranged on the corresponding hanging wire points of the foot winding columns, and finally the foot winding is arranged at the roots of the foot winding columns; the specification of the external insulating tape is as follows: the thickness is 12.5mm, the color is yellow, the winding is carried out for 2 circles, and the tail end line is padded at the initial position of the external insulating tape;

after a foot is wound at the root of a winding socle, an enameled wire of the automatic winding machine is drawn to be hung on a wire hanging point corresponding to the winding socle, wherein a wire gauge of the enameled wire is as follows: 7 x 45mm copper sheets (copper sheet prefabrication, copper sheet is wrapped by 12.5mm yellow adhesive tape, a copper wire with the diameter of 0.2 is led out, a 28L-sized sleeve is added to a lead, a 7 x 10mm thin clamp belt is attached to a welding spot), and the head and the tail of the copper sheet are separated by the adhesive tape; later draw forth to wire winding wire inslot from twining the left trough of socle one, the left side all wraps 1 circle of 2mm barricade with the right, and the corresponding wire winding of enameled wire adopts mode wire winding 1.2 circle between two parties on the wire winding wire casing in the protruding arris of both sides, does not twine the foot after having wound, and the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

automatic coiling machine's enameled wire is after twining nine roots of socle and twining the foot, pull the enameled wire and draw forth to the winding wire inslot from the trough on the nine right sides of socle, wherein the rule of enameled wire is FIW 40.25.25, and all sheathe in the sleeve pipe that the specification is 26L in the end to end department during the winding, the protruding arris of 2mm package 1 circle is all wrapped on the left side and the right, the corresponding wire winding of enameled wire is on the winding wire groove between the barricade of both sides, 18 circles are wound to the mode that adopts the interwound, after the winding, pull the enameled wire through the trough on the eight right sides of socle, it is eight at the socle of twining at last, the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

automatic coil winding machine's enameled wire is after five roots of leg winding post twine the foot, pull the enameled wire and draw forth to the wire winding inslot from twining five left trough of leg winding post, wherein the rule of enameled wire is FIW 40.20, the sleeve pipe that the specification is 26L is all sheathed in to end and end department during the winding, the protruding arris of 2mm package 1 circle is all wrapped on the left side and the right, the corresponding wire winding of enameled wire is on the wire winding groove between the barricade of both sides, the mode of adopting the intervally winding is wound 22 circles, after having been wound, pull the enameled wire through six left troughs of leg winding post, twine the foot at last and twine the leg on leg winding post six, the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

after the magnetic core of the product is assembled, the winding wire slot winding is covered by the square annealing silicon steel shielding cover, magnetic leakage shielding is carried out, the appearance of the shielding cover is the same with the edge peripheries of the first platform and the second platform, the shielding cover is erected on the first platform and the second platform, and glue dispensing is carried out through the guide slot openings on the first platform and the second platform and is fixed.

Has the advantages that: the invention can effectively improve the insulativity of the transformer and can prevent the leakage flux of the transformer from interfering the action of peripheral elements; including but not limited to the following benefits:

1) winding the legs of the windings on different leg winding columns respectively, and separating the enameled wires through the wiring grooves between the head end and the tail end to enable the windings to be separated; thus, the requirement of safe use can be met;

2) when the enameled wire is led out from the head and the tail, the wire length is increased through the wire hanging point, so that the wire can be conveniently wound by an automatic machine; and can avoid soldering tin too dark short circuit, increased simultaneously and twine the distance of foot soldering tin end to solenoid, increased the distance of creepage, improved the security.

Drawings

FIG. 1 is a diagram of a transformer bobbin structure;

FIG. 2 is a first platform architecture;

FIG. 3 is a second platform block diagram;

FIG. 4 is a view showing the structure of a slot opening;

FIG. 5 is a view of a reinforcing plate structure;

FIG. 6 is a view of the base structure;

fig. 7 is a cross-sectional view of the base.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in figures 1-7: a high-frequency transformer framework structure comprises a winding wire slot 1; the top parts of two sides of the winding wire slot 1 are respectively and symmetrically fixedly provided with a first platform 2 and a second platform 3; winding bosses 4 are respectively arranged on the first platform 2 and the second platform 3 close to the middle part of the winding slot 1; the winding boss 4 is provided with a plurality of wiring grooves 5; the middle parts of the plurality of wiring grooves 5 are obliquely and downwards communicated with the inside of the winding wire groove 1 towards one side of the middle part of the winding wire groove 1. The design can be effectual separates the end to end of enameled wire in each winding, makes mutual independence between each winding, avoids taking place electric leakage and concatenates electricity etc. satisfies the safety requirement.

The winding boss 4 comprises a first winding table 41 and a second winding table 42; a plurality of wiring grooves 5 are respectively formed on the first winding table 41 and the second winding table 42; the first winding table 41 is fixed on the first platform 2; the second winding table 42 is fixed on the second platform 3; a plurality of foot posts are wound on the platforms, the head and the tail of the drawn enameled wire are wound on different platforms and different foot posts, the enameled wire at the head and the tail of the enameled wire is separated through the wiring groove, and therefore independence among windings can be effectively guaranteed.

The winding wire slot 1 is arranged in an annular manner, and convex edges 11 are fixedly arranged on the inner walls of the two sides of the winding wire slot 1 in the annular manner; the inclined lower ends of the wiring grooves 5 correspond to the convex edges 11, the first platform 2 and the second platform 3 are arranged on the winding wire grooves 1 in a large size, and shielding covers are arranged on the first platform 2 and the second platform 3, so that the winding wire grooves 1 are easy to deform, and the convex edges 11 can also play a role in enhancing the strength of the winding wire grooves 1, and the convex edges 11 are provided with wire accommodating openings 12; the wiring groove 5 on the first winding table 41 corresponds to the wire accommodating port 12; when winding, the end and the tail of the enameled wire pass through the wire accommodating port 12 through the wiring groove 5 and then start winding, so that the end and the tail of the enameled wire cannot be higher than the wire package when being led out, and the smoothness of the enameled wire cannot be influenced by leakage inductance.

A plurality of lug bosses 51 are arranged between the plurality of wiring grooves 5 on the first winding table 41 and the second winding table 42, and winding leg columns 52 are respectively and fixedly arranged on the lug bosses 51; one side of the raised platform 51, which is far away from the middle part of the winding wire slot 1, is fixedly provided with wire hanging points 53, and the number of the winding leg columns 52 of the wire hanging points 53 corresponds to that of the wire hanging points; the foot winding column 52 on the boss 51 winds feet, and then the enameled wire is separated through the wiring groove 5, so that the insulating effect is achieved; the wire hanging point 53 is used for facilitating the foot hanging during the wire winding and is suitable for automatic machine wire winding, after the foot winding of the enameled wire, the enameled wire passes through the wire hanging point 53 and then enters the wire winding groove 1 through the wire distribution groove 5, and then the wire winding is started; and the wire length led out from the winding pin position is increased after the wire is hung through the wire hanging point 53, the increased wire length can effectively prevent short circuit caused by over-deep soldering tin, and the creepage distance from the winding pin position to the wire package can be increased.

The tops of two ends of the first winding table 41 and the second winding table 42 are respectively and fixedly provided with a supporting foot block 43 symmetrically; a support plane is formed between the support foot blocks 43 on the first winding table 41 and the second winding table 42; when the circuit board is installed, a supporting plane is formed between the circuit board and the supporting foot blocks 43 to contact, so that the electric leakage is avoided, or the middle parts of the surfaces of the supporting foot blocks 43, which are damaged by the transformer, are respectively and fixedly provided with guide posts 44; the guide post 44 corresponds to the mounting hole of the circuit board, so that the mounting in place can be ensured, the situation of loosening and displacement can not occur, and the stability of the framework can be improved.

A partition plate 54 is arranged in the wiring groove 5 in the middle of the first winding table 41; the partition plates 54 can separate the windings, prevent short circuit between the windings and improve the voltage resistance between the windings, and the voltage resistance of the voltage-resistant shell reaches 2000V-2500V.

The winding leg column 52 on the raised platform 51 on the first winding platform 41 sequentially comprises a winding leg column I521, a winding leg column II 522, a winding leg column III 523 and a winding leg column IV 524; the winding leg column four 524 corresponds to the line accommodating port 12; the winding leg 52 on the raised platform 51 on the second winding platform 42 sequentially comprises a winding leg five 525, a winding leg six 526, a winding leg eight 528 and a winding leg nine 529; the plurality of foot winding columns arranged on the convex table 51 can facilitate the guide pin lead and the wire winding of a machine, meanwhile, each foot winding column is correspondingly arranged on different convex tables 51, and the convex tables 51 are arranged at intervals; short circuits between the windings can be avoided.

Also comprises a base 8; the base 8 is a hollow rectangular structure; a plurality of conical holes 81 are formed in the base 8; the conical hole 81 penetrates through the base 8 along the hollow direction; the foot winding columns 52 correspondingly penetrate through the conical holes 81 respectively, and the smaller ends of the conical holes 81 are far away from the boss 51; positioning holes 82 are formed in four corners of the base 8 respectively; the guide posts 44 are correspondingly embedded into the positioning holes 82; supporting blocks 83 are arranged at four corners of the other end, opposite to the positioning holes 82, of the base 8; a fixing column 84 is diagonally arranged on one side of the supporting block 83 away from the boss 51; a grid baffle 85 is arranged around the periphery of one end of the base 8 far away from the supporting block 83; the height of the grid baffle 85 is greater than that of the supporting leg block 43; therefore, after the product is assembled, the lead-out wire welding points can be completely isolated from peripheral components, and the safety and reliability of the product are improved. Because the PCB areas such as ammeter are less, the transformer bottom takes up certain PCB area, and at this moment because the design needs, when utilizing transformer bottom space, transformer twines the leg post 52 extension, uses supporting base 8, is equipped with four on the base 8 and corresponds guide pillar 44 locating hole 82 to and the tapered hole 81 that twines the leg post 52 correspondingly. During the installation, the transformer twines the insertion of socle 5 corresponding tapered hole 81, because the originated trompil of tapered hole 81 is great, the transformer twines socle 5 and need not the plastic calibration and can easily insert, twines the socle 5 through the direction of tapered hole 81 and can calibrate by oneself, inserts locating hole 82 fixed transformer through guide pillar 44 simultaneously, here is the tight fit. The base 8 is a hollow quadrangle, supporting blocks 83 are arranged on four corners of the base to form a supporting surface, and fixing columns 84 are arranged on the supporting blocks 83, so that the whole product can be suspended in the air, and a bottom PCB space is reserved for mounting elements.

The edges of the first platform 2 and the second platform 3, which are far away from the winding boss 4, are respectively provided with a guide notch 6; the mounting feet of the shielding cover are correspondingly embedded in the guide groove openings 6, and the winding wire slot 1 is covered by the shielding cover; the shielding cover is additionally arranged on the periphery of the winding, so that the anti-interference capability of the transformer can be effectively improved, and the influence of the outside on a magnetic circuit of the transformer is prevented; meanwhile, the condition that the leakage flux of the transformer generates induced voltage to interfere peripheral elements is avoided.

A reinforcing plate 7 is fixedly arranged on the side wall of one end of the winding wire slot 1, which is far away from the winding boss 4; a plurality of oblique angle plates 71 and a rectangular plate 72 are arranged between the reinforcing plate 7 and the side wall of the winding wire slot 1 in a clamping mode, and the side, far away from the winding boss 4, of the reinforcing plate is arranged. The reinforcing plate 7, the oblique angle plate 71 and the rectangular plate 72 support the reinforcing plate to prevent the winding wire slot 1 from deforming; the automatic winding machine is provided with light induction, and when the transformer is kneeled and inserted correctly, the light can be directly transmitted; when the transformer framework is inserted reversely, light is blocked by the rectangular plate 72, and then the light sensing equipment gives an alarm, so that the rectangular plate 72 can play a foolproof role.

After winding feet on the root of the first leg winding column 521, an enameled wire of the automatic winding machine is drawn to be hung on a wire hanging point 53 corresponding to the first leg winding column 521, wherein the wire gauge of the enameled wire is phi 0.14 x 2, and a 28L-sized sleeve needs to be sleeved at the starting position; after that, the left wiring groove 5 of the first foot winding column 521 is led out to the winding wire groove 1, the corresponding winding of the enameled wire is wound on the winding wire groove 1 between the retaining walls on two sides in a close winding mode for 23 circles, the tail wire is not wound after winding, and the specification of the external insulation adhesive tape is as follows: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape; the junction tail is isolated from the coil to prevent short circuit.

After the enameled wire of the automatic winding machine winds the foot at the root of the second leg winding column 522, the enameled wire is drawn to be hung on the wire hanging point 53 corresponding to the second leg winding column 522, and sleeves with the specification of 28L are sleeved at the head and the tail during winding; leading out the enameled wire from a wiring groove 5 on the left side of a first winding leg 522 to a wiring groove 1, wherein the left side and the right side of each two layers are respectively wrapped with 1 circle of a retaining wall with the thickness of 2mm, the corresponding winding of the enameled wire is wound on the wiring groove 1 between the retaining walls on the two sides in a close winding mode, the first layer is wound with 37 circles, the second layer is wound with 36 circles, the third layer is wound with 35 circles, the fourth layer is wound with 26 circles, polyimide with the thickness of 12.5mm is wrapped between each two layers, the winding 1 circle is isolated, after the winding is finished, the enameled wire is pulled to pass through the wiring groove 5 on the left side of the first winding leg 521, then the wire is hung on a wire hanging point 53 corresponding to the first winding leg 521, and finally the root of the first winding leg 521 is wound; the specification of the external insulating tape is as follows: the thickness is 12.5mm, polyimide is wound for 3 circles, and the starting position of the external insulating tape is padded with a tail line; the junction tail wire is isolated from the coil, so that short circuit is prevented; the adoption is that the phoenix is around the method (one deck is less than one deck number of turns) and all added barricade and interbedded sticky tape between every layer in this embodiment, so the operation transformer leakage inductance is little to can not appear the short circuit phenomenon between the layer.

After an enameled wire of the automatic winding machine winds a pin at the root of a three-leg winding column 523, the enameled wire is drawn to be led out from a wiring groove 5 on the right side of the three-leg winding column 523 to a winding wire groove 1, a starting wire is isolated from a lead of a two-leg winding column 522 through a partition plate 54, wherein the wire gauge of the enameled wire is phi 0.14 x 2, and sleeves with the specification of 28L are sleeved at the head and the tail during winding; the left side and the right side of the enameled wire are wrapped by 1 circle of a retaining wall with the diameter of 2mm, the corresponding winding of the enameled wire is wound on winding wire grooves 1 in the convex edges 11 at the two sides by 18 circles in a centered and densely-wound mode, the enameled wire is drawn to pass through a wire trough 5 on the right side of a foot winding post four 524 after being wound, then the wire is hung on a wire hanging point 53 corresponding to the foot winding post four 524, and finally the foot is wound at the root of the foot winding post four 524; the specification of the external insulating tape is as follows: the thickness is 12.5mm, the color is yellow, the winding is carried out for 2 circles, and the tail end line is padded at the initial position of the external insulating tape; the junction tail is isolated from the coil to prevent short circuit.

After the enameled wire of the automatic winding machine winds the foot at the root of the first winding leg 521, the enameled wire is drawn to be hung on the wire hanging point 53 corresponding to the first winding leg 521, wherein the wire gauge of the enameled wire is as follows: prefabricating a 7 x 45mm copper sheet: the copper sheet is wrapped by 12.5mm yellow adhesive tape, a phi 0.2 copper wire is led out, a 28L sleeve is added as a lead, a 7 x 10mm thin clip tape is pasted on a welding spot, and the head and the tail of the copper sheet are separated by the adhesive tape; after draw out to winding wire casing 1 in from winding the left trough 5 of socle 521, the left side all wraps 2mm barricade 1 circle with the right, and the corresponding wire winding of enameled wire adopts mode wire winding 1.2 circles placed in the middle on winding wire casing 1 in the protruding arris 11 of both sides, does not twine the foot after having wound, and the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape; the junction tail is isolated from the coil to prevent short circuit.

Automatic coil winding machine's enameled wire is after the nine 529 root of leg winding post twines the foot, pull the enameled wire and draw forth to winding wire inslot 1 from wiring groove 5 on nine 529 right sides of leg winding post, wherein the rule of enameled wire is FIW 40.25.25, and the head and the tail department all sheathes the sleeve pipe that the specification is 26L during the winding, the protruding arris 11 package 1 circles of 2mm are all wrapped on the left side and the right side, the corresponding wire winding of enameled wire is on winding wire groove 1 between the barricade of both sides, adopt the mode of interwound 18 circles, after the winding, pull the enameled wire through wiring groove 5 on eight 528 right sides of leg winding post, twine the foot on eight 528 of leg winding post at last, the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape; the junction tail wire is isolated from the coil to prevent short circuit.

Automatic coil winding machine's enameled wire is after the five 525 roots of leg winding post twine the foot, pull the enameled wire and draw out to winding wire inslot 1 from winding the five left trough 5 of leg winding post 525, wherein the rule of enameled wire is FIW 40.20, the sleeve pipe that the specification is 26L is all sheathed in to the head and the tail during winding, the protruding arris 11 package 1 circles of 2mm are all wrapped on the left side and the right, the corresponding wire winding of enameled wire is on winding wire groove 1 between the barricade of both sides, 22 circles are wound to the mode of adopting interwound, after the winding, pull the enameled wire through the left trough 5 of six 526 of leg winding post, twine the foot on six 526 of leg winding post at last, the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape; the junction tail is isolated from the coil to prevent short circuit.

After the magnetic core of the product is assembled, the winding slot winding is covered by the square annealing silicon steel shielding cover, magnetic leakage shielding is carried out, the appearance of the shielding cover is the same as the peripheries of the edges of the first platform 2 and the second platform 3, the shielding cover is erected on the first platform 2 and the second platform 3, and glue dispensing and fixing are carried out through the guide slot openings 6 on the first platform 2 and the second platform 3.

The winding heads and the tail winding pins of the windings in the embodiment are different, the winding heads and the tail are separated, wherein the direct distance between the

pins

526 and 528 reaches 9mm, the creepage distance between the secondary level and the secondary level is larger, and the enameled wires are separated by the wiring grooves, so that the windings are mutually independent, the safety requirement can be met, and the left side and the right side of the wire layer are wrapped by 1 circle of a 2mm retaining wall; the retaining wall is replaced by the winding boss, so that the first winding does not need to be wrapped by the retaining wall, the creepage distance can be increased by the retaining wall and the convex edge, and the transformer can reach the required insulation safety distance; and the sleeve and the external insulating adhesive tape are additionally arranged, so that the insulativity between the windings can be enhanced, and the use safety is ensured.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.

Claims

1. A high frequency transformer skeleton texture which characterized in that: comprises a winding wire slot (1); the top parts of the two sides of the winding wire slot (1) are respectively and symmetrically fixedly provided with a first platform (2) and a second platform (3); winding bosses (4) are respectively arranged on the first platform (2) and the second platform (3) close to the middle of the winding slot (1); a plurality of wiring grooves (5) are formed in the winding boss (4); the middle parts of the plurality of wiring grooves (5) are obliquely and downwards communicated with the inside of the winding wire groove (1) from one side of the middle part of the winding wire groove (1);

the winding boss (4) comprises a first winding table (41) and a second winding table (42); a plurality of wiring grooves (5) are respectively formed in the first winding table (41) and the second winding table (42); the first winding platform (41) is fixed on the first platform (2); the second winding table (42) is fixed on the second platform (3);

the winding wire casing (1) is annularly arranged, and convex edges (11) are fixedly arranged on the inner walls of two sides of the winding wire casing (1) in the annular direction; the inclined lower ends of the plurality of wiring grooves (5) correspond to the convex edges (11); the convex edge (11) is provided with a line accommodating port (12); the wiring groove (5) on the first winding table (41) corresponds to the wire accommodating opening (12);

a plurality of lug bosses (51) are arranged between a plurality of wiring grooves (5) on the first winding table (41) and the second winding table (42), and winding leg columns (52) are respectively and fixedly arranged on the lug bosses (51) correspondingly; one side, away from the middle part of the winding wire slot (1), of the boss (51) is fixedly provided with wire hanging points (53), and the number of the wire hanging points (53) corresponds to the number of the foot winding columns (52);

the tops of two ends of the first winding table (41) and the second winding table (42) are respectively and symmetrically fixedly provided with a supporting foot block (43); a support plane is formed between the support foot blocks (43) on the first winding table (41) and the second winding table (42); guide columns (44) are fixedly arranged in the middle of the surfaces of the plurality of supporting foot blocks (43) respectively;

further comprising a base (8); the base (8) is of a hollow rectangular structure; a plurality of conical holes (81) are formed in the base (8); the conical hole (81) penetrates through the base (8) along the hollow direction; the foot winding columns (52) correspondingly penetrate through the conical holes (81) respectively, and the smaller ends of the conical holes (81) are far away from the boss (51); positioning holes (82) are respectively formed in four corners of the base (8); the guide posts (44) are correspondingly embedded into the positioning holes (82); supporting blocks (83) are arranged at four corners of the other end, opposite to the positioning hole (82), of the base (8); a fixing column (84) is diagonally arranged on one side of the supporting block (83) far away from the boss (51); a grid baffle plate (85) is arranged around the periphery of one end of the base (8) far away from the supporting block (83); the height of the grid baffle (85) is greater than that of the support foot block (43).

2. A high frequency transformer bobbin structure according to claim 1, characterized in that: a partition plate (54) is arranged in the wiring groove (5) in the middle of the first winding table (41).

3. The high-frequency transformer bobbin structure according to claim 1, wherein: the winding leg column (52) on the protruding platform (51) on the first winding platform (41) sequentially comprises a winding leg column I (521), a winding leg column II (522), a winding leg column III (523) and a winding leg column IV (524); the winding leg four (524) corresponds to the line accommodating port (12); and the foot winding column (52) on the convex platform (51) on the second winding platform (42) sequentially comprises a foot winding column five (525), a foot winding column six (526), a foot winding column eight (528) and a foot winding column nine (529).

4. The high-frequency transformer bobbin structure according to claim 1, wherein: the edges of one sides of the first platform (2) and the second platform (3) far away from the winding boss (4) are respectively provided with a guide notch (6); the mounting feet of the shielding cover are correspondingly embedded in the guide groove openings (6), and the shielding cover covers the winding of the winding wire slot (1);

a reinforcing plate (7) is fixedly arranged on the side wall of one end of the winding wire slot (1) far away from the winding boss (4); a plurality of oblique angle plates (71) and a rectangular plate (72) are clamped between the reinforcing plate (7) and the side wall of the winding wire slot (1), and the side of the reinforcing plate far away from the winding boss (4) is arranged.

5. A winding method of a high-frequency transformer bobbin structure according to any one of claims 1 to 4, characterized in that:

after winding feet on the root of a first foot winding column (521), an enameled wire of the automatic winding machine is drawn to be hung on a wire hanging point (53) corresponding to the first foot winding column (521), wherein the wire gauge of the enameled wire is phi 0.14 x 2, and a 28L-sized sleeve needs to be sleeved at the starting position; then draw forth to wire winding groove (1) in from wire winding groove (5) on foot post one (521) left side, the corresponding wire winding of enameled wire adopts the full circle of winding 23 circles of mode of close winding on wire winding groove (1) between the barricade of both sides, and the tail wire does not twine the foot after the winding, and the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

after the enameled wire of the automatic winding machine winds the foot at the root of the second winding foot column (522), the enameled wire is drawn to be hung on the wire hanging point (53) corresponding to the second winding foot column (522), and sleeves with the specification of 28L are sleeved at the head and the tail during winding; leading out the enameled wire from a wiring groove (5) on the left side of a second foot winding column (522) to a wiring groove (1), wherein the left side and the right side of each two layers of the enameled wire are wrapped by 1 circle of a 2mm retaining wall, the corresponding winding of the enameled wire is wound on the wiring groove (1) between the retaining walls on the two sides in a close winding mode, the first layer is wound by 37 circles, the second layer is wound by 36 circles, the third layer is wound by 35 circles, the fourth layer is wound by 26 circles, each layer is wrapped by 12.5mm in thickness, polyimide is wound by 1 circle for isolation, after winding, the enameled wire is pulled to pass through the wiring groove (5) on the left side of the first foot winding column (521), then the wire is hung on a wire hanging point (53) corresponding to the first foot winding column (521), and finally the foot is wound at the root of the first foot winding column (521); the specification of the external insulating tape is as follows: winding 3 circles of polyimide with the thickness of 12.5mm, and padding a tail end line at the initial position of the external insulating tape;

after an enameled wire of the automatic winding machine winds a pin at the root of a third winding leg (523), the enameled wire is drawn to be led out of a wiring groove (5) on the right side of the third winding leg (523) into a winding wire groove (1), a starting wire is isolated from a lead of a second winding leg (522) through a partition plate (54), wherein the wire gauge of the enameled wire is phi 0.14 x 2, and sleeves with the specification of 28L are sleeved at the head and the tail during winding; the left side and the right side of the enameled wire are wrapped by 1 retaining wall ring with the diameter of 2mm, the corresponding winding of the enameled wire is wound on winding wire grooves (1) in the convex edges (11) at the two sides by 18 rings in a centered and densely-wound mode, after winding, the enameled wire is drawn to pass through a wire routing groove (5) at the right side of a foot winding column four (524), then the hanging wire is hung on a hanging wire point (53) corresponding to the foot winding column four (524), and finally the foot is wound at the root of the foot winding column four (524); the specification of the external insulating tape is as follows: the thickness is 12.5mm, the color is yellow, the winding is carried out for 2 circles, and the tail end line is padded at the initial position of the external insulating tape;

after the enameled wire of the automatic winding machine winds the foot at the root of the first winding leg (521), the enameled wire is drawn to be hung on the wire hanging point (53) corresponding to the first winding leg (521), wherein the wire gauge of the enameled wire is as follows: 7 by 45mm copper sheets, and the heads and the tails of the copper sheets are separated by adhesive tapes; after draw forth to wire winding groove (1) in from wire winding post one (521) left trough (5), the left side all wraps 2mm barricade 1 circle with the right, and the corresponding wire winding of enameled wire adopts mode wire winding 1.2 circle between two parties on wire winding groove (1) in protruding arris (11) in both sides, does not twine the foot after the completion of winding, and the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

automatic coiling machine's enameled wire twines the foot at the nine (529) roots of foot-wrapping post after, pull the enameled wire and draw forth to wire winding wire casing (1) from wire winding groove (5) on foot-wrapping post nine (529) right side, wherein the rule of wire of enameled wire is FIW 40.25.25, and the head and the tail department all sheathes the sleeve pipe that the specification is 26L during the winding, 2mm protruding arris (11) package 1 circle is all wrapped on the left side and the right side, the corresponding wire winding of enameled wire is on wire winding groove (1) between the barricade of both sides, 18 circles are wound to the mode that adopts the intervally winding, after having twined, pull wire-wound wire through wire winding groove (5) on foot-wrapping post eight (528) right side, twine the foot at last, the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

automatic coiling machine's enameled wire is after the five (525) roots of leg winding post twine the foot, pull the enameled wire and draw forth to wire winding wire casing (1) from wire winding post five (525) left trough (5), wherein the rule of wire of enameled wire is FIW 40.20, the sleeve pipe that the specification is 26L is all sheathed in to the end and the tail during winding, 2mm protruding arris (11) package 1 circle is all wrapped on the left side and the right, the corresponding wire winding of enameled wire is on wire winding wire casing (1) between the barricade of both sides, adopt the mode of interwound 22 circles, after having twined, pull the enameled wire through the six (526) left trough (5) of leg winding post, last leg winding is on leg winding post six (526), the specification of external insulation sticky tape is: the thickness is 12.5mm, the color is yellow, the winding is performed for 3 circles, and the tail end line is padded at the initial position of the external insulating tape;

after the magnetic core of the product is assembled, the wire winding slot winding is covered by the square annealing silicon steel shielding cover, magnetic leakage shielding is carried out, the appearance of the shielding cover is the same with the edge peripheries of the first platform (2) and the second platform (3), the shielding cover is erected on the first platform (2) and the second platform (3), and glue dispensing and fixing are carried out through the guide notch (6) on the first platform (2) and the second platform (3).