CN219180356U

CN219180356U - Insulating winding structure of foil winding end part of transformer

Info

Publication number: CN219180356U
Application number: CN202320124322.1U
Authority: CN
Inventors: 王海波; 李时银; 方利强
Original assignee: Qiannan Wangjiang Transformer Co ltd
Current assignee: Qiannan Wangjiang Transformer Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-13
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to the technical field of foil coils, and particularly discloses a foil winding end insulation winding structure of a transformer. The die comprises a supporting unit and two fixing units, wherein the supporting unit comprises a supporting rod and two die bodies, and the die is sleeved on the supporting rod and is in sliding fit with the supporting rod; the two fixing units are respectively positioned at two sides of the die, each fixing unit comprises a fixing seat and a push rod, each fixing seat is positioned at the end part of the die and is arranged on the supporting rod, and each push rod is detachably connected with each fixing seat and can move along the axial direction of the supporting rod; a limiting component is arranged between the fixing seat and the die and comprises a connecting seat, the connecting seat is detachably connected with the two die bodies, and the push rod is propped against the die bodies. The end insulation winding structure of the presser foil can better support the copper foil or the aluminum foil by adopting the mold without gaps, and simultaneously, the mold can be axially adjusted to ensure that the mold is aligned with the copper foil or the aluminum foil to be wound.

Description

Insulating winding structure of foil winding end part of transformer

Technical Field

The utility model relates to the technical field of foil coils, in particular to a foil winding end insulation winding structure of a transformer.

Background

The foil coil made of copper foil or aluminum foil is arranged in the transformer, unlike the common coil, the foil coil in the transformer is wound by a sheet copper foil or aluminum foil, and in part of the foil coil, the end parts of the adjacent copper foil or aluminum foil are required to be separated by an insulating layer, and the copper foil or aluminum foil is usually attached to the insulating layer before winding at present, and then is wound simultaneously.

At present, a foil winding machine is generally adopted for winding, and in order to enable the shape and the size of the foil coil to meet the design requirement of a transformer, a corresponding die is required to be adopted for winding, and copper foil or aluminum foil is wound on the die to form foil coils with different shapes and inner diameters. Currently, a foil coil winding device and method as disclosed in the application number CN201610367432.5, including a hollow tube; the first arc plates are opposite to each other and symmetrically arranged on the outer side of the hollow pipe along the length direction perpendicular to the hollow pipe, the first arc plates are connected with the hollow pipe through first adjusting bolts, and the distance between the first arc plates and the hollow pipe can be adjusted through the first adjusting bolts; the arc plates II are opposite to each other and symmetrically arranged on the outer side of the hollow tube along the length direction perpendicular to the hollow tube and are perpendicular to the arc plates I, the arc plates II are connected with the hollow tube through adjusting bolts II, and the distance between the arc plates II and the hollow tube can be adjusted through the adjusting bolts II. The first arc plate and the second arc plate are used for fixing the starting foil of the foil coil and providing support for winding the foil coil. The shape and the width of the die are changed by adjusting the arc-shaped plate, and the die is used for winding foil coils with different shapes and inner diameters.

However, when the winding device is in actual use, after the arc plates move to one side far away from the hollow pipe, gaps exist between the arc plates positioned on the adjacent side surfaces of the hollow pipe, so that rectangular supporting surfaces are difficult to form among all the arc plates, and the shape of the inner wall of the foil coil is difficult to meet the requirements. Secondly, the foil winding machine is also provided with a plurality of guide rollers, the copper foil or the aluminum foil with larger length is conveyed to the winding device for winding, and when the winding device is installed, the die cannot be adjusted along the axial direction according to the position of the copper foil or the aluminum foil, so that the position of the copper foil or the aluminum foil can be adjusted only, but the formed copper foil and aluminum foil are larger in length, the copper foil or the aluminum foil needs to be synchronously adjusted one by one along the conveying direction of the copper foil or the aluminum foil when being adjusted on the guide rollers, and the adjusting workload is larger.

Disclosure of Invention

The utility model aims to provide an insulating winding structure of a transformer foil winding end part, which is used for better supporting a copper foil or an aluminum foil by adopting a die without gaps, and simultaneously enabling the die to be axially adjusted so as to ensure that the die is aligned with the copper foil or the aluminum foil to be wound.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the transformer foil winding end insulation winding structure comprises a supporting unit and two fixing units, wherein the supporting unit comprises a supporting rod and two U-shaped die bodies, the openings of the two die bodies face the supporting rod and form a die, and the die is sleeved on the supporting rod and is in sliding fit with the supporting rod; the two fixing units are respectively positioned at two sides of the die, each fixing unit comprises a fixing seat and a push rod, each fixing seat is positioned at the end part of the die and is arranged on the supporting rod, and each push rod is detachably connected with each fixing seat and can move along the axial direction of the supporting rod; a limiting component is arranged between the fixing seat and the die and comprises a connecting seat, the connecting seat is detachably connected with the two die bodies, and the push rod is propped against the die bodies.

The beneficial effect of this scheme is:

1. the mould in this scheme is installed on the bracing piece, and the bracing piece is installed on the foil winding machine, compares with the mould of traditional foil winding machine, and the mould in this scheme comprises two U-shaped mould bodies, can take off from the bracing piece after dismantling the mould body from the connecting seat, and need not to roll off from the tip of bracing piece, so the mould in this scheme need not to dismantle the bracing piece when changing, and it is convenient to change. When the foil coil with larger diameter is wound, the die with larger diameter is replaced, the shape of the die is not required to be adjusted, so that the strength of the die is larger, the die can be used for forming the foil coil with larger weight, and gaps are not generated on the die, so that the die in the scheme can better support the foil coil.

2. The two fixing bases in this scheme can not take place to shift along the axial of bracing piece after installing on the bracing piece, and after push rod and connecting seat offset, can fix a position the mould from both sides, fixed mould. After the position of the conveyed copper foil or aluminum foil deviates along the axial direction of the supporting rod, the position of the die can be quickly adjusted by axially adjusting the two push rods, so that the alignment of the die and the copper foil or aluminum foil is ensured, the copper foil or aluminum foil in conveying does not need to be adjusted, and the adjustment is convenient and quick.

Further, the limiting assembly further comprises a limiting seat, the limiting seat is sleeved on the connecting seat and detachably connected with the connecting seat, and the side length of the limiting seat is larger than that of the die.

The beneficial effect of this scheme is: the spacing seat in this scheme can carry out spacingly to coiling copper foil or aluminium foil on the mould, avoids copper foil or aluminium foil to take place axial skew, improves the coiling effect.

Further, the limit seat comprises a first limit block and a second limit block, wherein the first limit block and the second limit block are U-shaped and the opening faces the connecting seat.

The beneficial effect of this scheme is: because the first limiting block and the second limiting block are provided with openings, the limiting seat can be detached and installed without detaching the supporting rod and the connecting seat, and the limiting seat is convenient to maintain and replace.

Further, a clamping groove is formed between the end parts of the first limiting block and the second limiting block, and a clamping block positioned in the clamping groove is fixed on the connecting seat.

The beneficial effect of this scheme is: the mould and the connecting seat in this scheme are installed on the bracing piece, when the coiling, drive mould and connecting seat through rotatory bracing piece and rotate, and spacing seat installs on the connecting seat, and in this scheme, spacing seat is except driving rotatoryly through the connecting seat, under the cooperation of draw-in groove and fixture block, the fixture block can also drive spacing seat and rotate to at rotatory in-process, reduce the effort that receives the connecting piece of installing spacing seat on the connecting seat, thereby avoid the connecting piece to warp.

Further, the fixing base comprises a first fixing block and a second fixing block, the first fixing block and the second fixing block are U-shaped, the openings of the first fixing block and the second fixing block face the supporting rod, and the first fixing block and the second fixing block are detachably connected.

The beneficial effect of this scheme is: the fixed block centre gripping in this scheme is on the bracing piece, and because be equipped with the opening, so need not to pull down the bracing piece and can pull down and install first fixed block and second fixed block for maintenance, dismantlement and installation are more convenient.

Further, a gap is provided between the ends of the first and second fixed blocks.

The beneficial effect of this scheme is: when adopting fastener such as bolt to connect first fixed block and second fixed block, screw up the fastener and can make first fixed block and second fixed block to the direction that draws close each other remove to increase the pressure between two and the bracing piece of first fixed block and second fixed block, make first fixed block and second fixed block be difficult to take place axial removal when receiving effort, improve the positioning effect to the mould.

Further, the extending direction of the clamping groove is spatially perpendicular to the extending direction of the gap.

The beneficial effect of this scheme is: in this scheme, push rod offsets with the position that the connecting seat is close to the fixture block, and the area of here is greater than the area at other positions, is difficult to warp when receiving pressure.

Drawings

Fig. 1 is a perspective view of an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the support rod 1, the fixing seat 2, the first fixing block 21, the second fixing block 22, the push rod 3, the connecting seat 4, the clamping block 41, the die 5, the first die body 51, the second die body 52, the limiting seat 6, the first limiting block 61 and the second limiting block 62.

Examples

The transformer foil winds tip insulation wire winding structure, as shown in fig. 1, including supporting element and two fixed units, the supporting element includes bracing piece 1 and mould 5, and the pivot has all been welded at bracing piece 1's both ends, and the pivot is all installed on the support of foil winding machine through the bearing, and bracing piece 1 is the prism, and specifically, the cross section of bracing piece 1 in this embodiment is the rectangle.

The die 5 in this embodiment includes a first die body 51 and a second die body 52, the cross sections of the first die body 51 and the second die body 52 are both U-shaped, and the openings of the first die body 51 and the second die body 52 face the support rod 1, and the die 5 formed by the first die body 51 and the second die body 52 is sleeved on the support rod 1 and is in small clearance fit with the support rod 1. The left side and the right side of mould 5 all are equipped with connecting seat 4, and the coaxial logical groove that is equipped with the rectangle in the connecting seat 4 is the annular promptly, and bracing piece 1 transversely runs through the groove for connecting seat 4 cover is established on bracing piece 1 and is little clearance fit with bracing piece 1. The ends of the first die body 51 and the second die body 52 are propped against the connecting seat 4 and are connected with the connecting seat 4 through screws, and the first die body 51 and the second die body 52 are limited through the connecting seat 4, so that the first die body 51 and the second die body 52 are arranged on the supporting rod 1.

Be equipped with spacing seat 6 on the connecting seat 4, the limit of spacing seat 6 peripheral wall is greater than the limit of mould 5, can carry out spacingly to the coiling of copper foil or aluminium foil, avoids copper foil or aluminium foil to take place axial crooked in the coiling in-process. The limiting seat 6 comprises a first limiting block 61 and a second limiting block 62, the cross sections of the first limiting block 61 and the second limiting block 62 are U-shaped, the openings of the first limiting block 61 and the second limiting block 62 face the connecting seat 4, the limiting seat 6 is sleeved on the connecting seat 4, and the first limiting block 61 and the second limiting block 62 are installed on the connecting seat 4 through bolts. The gap is formed between the ends of the first limiting block 61 and the second limiting block 62 in this embodiment, the gap forms a clamping groove, the top and the bottom of the connecting seat 4 are integrally formed with clamping blocks 41, the two clamping blocks 41 are respectively located in the two clamping grooves, when the connecting seat 4 rotates, the clamping blocks 41 and the clamping grooves cooperate to drive the limiting seat 6 to synchronously rotate, especially when the mold 5 is a pentagon, a hexagon or other polygon, the angle between the adjacent sides increases along with the increase of the number of sides, and at this time, the clamping blocks 41 and the clamping grooves cooperate to drive the limiting seat 6 to synchronously rotate better.

Two fixed units are located the one side that mould 5 was kept away from to two connecting seats 4 respectively, and fixed unit includes fixing base 2 and two push rods 3, and fixing base 2 includes first fixed block 21 and second fixed block 22, take left fixing base 2 as the example, and the cross section of first fixed block 21 and second fixed block 22 is the U-shaped, and the opening all is towards bracing piece 1, and the front end and the rear end of first fixed block 21 and second fixed block 22 all pass through bolted connection, screw bolt can make fixed block and second fixed block 22 centre gripping can not follow the axial slip of bracing piece 1 on bracing piece 1, and fixing base 2 is fixed on bracing piece 1 this moment. A gap is formed between the ends of the first fixing block 21 and the second fixing block 22, in this embodiment, the gap extends transversely, and the clamping groove extends vertically, so that the gap is perpendicular to the clamping groove space. Two push rods 3 transversely penetrate through the first fixing block 21 and the second fixing block 22 respectively and are in threaded fit with the first fixing block 21 and the second fixing block 22 respectively, one end of each push rod 3, which faces the connecting seat 4, abuts against the connecting seat 4, in the embodiment, the clamping blocks 41 are located on the same straight line with the push rods 3 along the vertical projection, so that the positions, which abut against the connecting seat 4, of the push rods 3 in the embodiment are located at the positions, provided with the clamping blocks 41, of the connecting seat 4, the areas and the strength of the positions of the connecting seat 4 are larger than those of the front and rear positions, and the connecting seat 4 is not easy to deform after being pressed by the push rods 3.

In this embodiment, the push rod 3 abuts against the connection seat 4, and the connection seat 4 is connected with the ends of the first die body 51 and the second die body 52, so that the push rods 3 on two sides of the die 5 can position the die 5, and when the die 5 needs to be adjusted along the axial direction of the support rod 1, the push rods 3 can be adjusted along the axial direction, and the adjustment is convenient. When the distance to be adjusted of the die 5 is large, the bolts connecting the first fixing block 21 and the second fixing block 22 are loosened, the fixing seat 2 is adjusted along the axial direction of the supporting rod 1, and then the push rod 3 is adjusted.

When coiling, one end of the supporting rod 1 is connected with a motor, so that the supporting rod 1 can be driven to rotate, and the die 5 is driven to rotate through the supporting rod 1. Meanwhile, the supporting rod 1 drives the connecting seat 4 to rotate, and the limiting seat 6 synchronously rotates under the action of the connecting seat 4 and the clamping block 41.

When the die 5 needs to be replaced, after the first limiting block 61 and the second limiting block 62 are disassembled, the first die body 51 and the second die body 52 can slide out of the support rod 1 after being disassembled from the connecting seat 4; then, a new die 5 is sleeved on the support rod 1 and connected with the connecting seat 4 to be installed on the support rod 1, and finally, the limiting seat 6 is reinstalled to complete replacement of the die 5 without disassembling the support rod 1 and the fixing seat 2, so that the replacement is convenient.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The transformer foil winds tip insulation wire winding structure, its characterized in that: the die comprises a supporting unit and two fixing units, wherein the supporting unit comprises a supporting rod and two U-shaped die bodies, the openings of the two die bodies face the supporting rod and form a die, and the die is sleeved on the supporting rod and is in sliding fit with the supporting rod; the two fixing units are respectively positioned at two sides of the die, each fixing unit comprises a fixing seat and a push rod, each fixing seat is positioned at the end part of the die and is arranged on the supporting rod, and each push rod is detachably connected with each fixing seat and can move along the axial direction of the supporting rod; and a limiting assembly is arranged between the fixing seat and the die, the limiting assembly comprises a connecting seat, the connecting seat is detachably connected with the two die bodies, and the push rod is propped against the die bodies.

2. The transformer foil-wound end insulating winding structure of claim 1, wherein: the limiting assembly further comprises a limiting seat, the limiting seat is sleeved on the connecting seat and detachably connected with the connecting seat, and the side length of the limiting seat is larger than that of the die.

3. The transformer foil-wound end insulating winding structure of claim 2, wherein: the limiting seat comprises a first limiting block and a second limiting block, wherein the first limiting block and the second limiting block are U-shaped and the opening faces the connecting seat.

4. A transformer foil wound end insulating winding structure according to claim 3, wherein: a clamping groove is formed between the end parts of the first limiting block and the second limiting block, and a clamping block positioned in the clamping groove is fixed on the connecting seat.

5. The transformer foil-wound end insulating winding structure of claim 3 or 4, wherein: the fixing base includes first fixed block and second fixed block, and first fixed block and second fixed block are U-shaped and the opening of first fixed block and second fixed block is towards the bracing piece, first fixed block and second fixed block can dismantle the connection.

6. The transformer foil-wound end insulating winding structure of claim 5, wherein: a gap is arranged between the ends of the first fixed block and the second fixed block.

7. The transformer foil-wound end insulating winding structure of claim 6, wherein: the extending direction of the clamping groove is vertical to the extending direction space of the gap.