CN210120032U - Iron yoke insulating mechanism - Google Patents
Iron yoke insulating mechanism Download PDFInfo
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- CN210120032U CN210120032U CN201921515577.0U CN201921515577U CN210120032U CN 210120032 U CN210120032 U CN 210120032U CN 201921515577 U CN201921515577 U CN 201921515577U CN 210120032 U CN210120032 U CN 210120032U
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- cushion block
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- shaped cushion
- clamping piece
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Abstract
The utility model discloses an iron yoke insulation mechanism, which comprises a special-shaped cushion block, wherein the special-shaped cushion block is used for being placed between the end parts of two adjacent groups of windings and the corresponding iron yoke part; the special-shaped cushion block comprises a rectangular plate and an inner end plate connected with the rectangular plate through a transition plate; the widths of the transition plate and the inner end plate are smaller than the width of the rectangular plate; the top surface of the transition plate is a concave arc surface; arc inner angles are respectively arranged on two sides of the transition plate; the end part of the inner end plate is provided with a chamfer; the bottom surface of the special-shaped cushion block is provided with a first oil groove, and the trend of the first oil groove is from the rectangular plate to the inner end plate. The utility model discloses not only can improve winding axial packing force, improve the radiating effect of transformer simultaneously.
Description
Technical Field
The utility model relates to a three-dimensional indisputable yoke insulating mechanism who rolls up iron core transformer.
Background
The triangular three-dimensional roll iron core is formed by combining three frame-shaped iron cores in an equilateral triangle. The vertical edges of two adjacent single frames are jointed and fixed together to form a core column for mounting a winding, and the transverse edge part of each single frame is an iron yoke.
At present, the insulator arrangement of three-dimensional book iron core mainly forms by the laminating wooden cushion and the insulating board circle of rectangle paste, and its defect lies in: the contact area between the cushion block and the winding is small, the axial pressing force is insufficient, and the problem of poor heat dissipation performance exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides an iron yoke insulating mechanism, its purpose: (1) improving the axial pressing force of the winding; (2) the heat dissipation effect of the transformer is improved.
The utility model discloses technical scheme as follows:
an iron yoke insulating mechanism is used for a transformer with a triangular three-dimensional rolled iron core structure and comprises special-shaped cushion blocks, wherein the special-shaped cushion blocks are used for being placed between the end parts of two adjacent groups of windings and the corresponding iron yoke parts;
the special-shaped cushion block comprises a rectangular plate and an inner end plate connected with the rectangular plate through a transition plate; the widths of the transition plate and the inner end plate are smaller than the width of the rectangular plate; the top surface of the transition plate is a concave arc surface; arc inner angles are respectively arranged on two sides of the transition plate; the end part of the inner end plate is provided with a chamfer;
the bottom surface of the special-shaped cushion block is provided with a first oil groove, and the trend of the first oil groove is from the rectangular plate to the inner end plate.
As a further improvement of the mechanism: a step is arranged in the first oil groove, so that the depth of one end, close to the rectangular plate, of the first oil groove is larger than that of the other end of the first oil groove.
As a further improvement of the mechanism: the transformer is characterized by further comprising an arc cushion block which is used for being installed at the end part of the winding and located at the triangular vertex of the iron core structure, wherein a second oil groove is formed in the bottom of the arc cushion block, and the second oil groove is arranged along the arc radial direction of the arc cushion block.
As a further improvement of the mechanism: the device also comprises a fixing device for fixing the special-shaped cushion block and the arc cushion block on the triangular three-dimensional roll iron core structure.
As a further improvement of the mechanism: the fixing device comprises an upper clamping piece, a lower clamping piece, a first pressing plate, a second pressing plate and a central screw rod;
the upper clamping piece and the lower clamping piece are both triangular and are respectively arranged above and below a winding of the triangular three-dimensional wound iron core structure; the first pressing plate is stacked between the clamping piece and the special-shaped cushion block, and the second pressing plate is stacked between the clamping piece and the arc cushion block;
the special-shaped cushion block is characterized in that a through hole is formed in the rectangular plate of the special-shaped cushion block, the central screw sequentially penetrates through the upper clamping piece, the through hole in the upper special-shaped cushion block, the through hole in the lower special-shaped cushion block and the lower clamping piece, and nuts are respectively installed at two ends of the central screw.
Compared with the prior art, the utility model discloses following positive effect has: (1) compared with the traditional common wood cushion block, the integrated special-shaped cushion plate is adopted in the mechanism, the contact area between the special-shaped cushion plate and the winding assembly is increased by adding the transition plate and the inner end plate, the axis pressing effect is improved, and an insulating paperboard ring is omitted; (2) the bottom parts of the special-shaped backing plate and the arc backing plate are respectively provided with an oil groove, so that the circulation of the inner space and the outer space is enhanced, and the heat dissipation effect is improved; (3) the upper clamp and the lower clamp are fixed together through a central screw rod penetrating through the special-shaped base plate, and the close contact between the special-shaped base plate and the winding is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a group of special-shaped base plates and a group of arc base plates which are placed on a winding.
Fig. 2 is a perspective view of the profiled mat.
Fig. 3 is a view from direction a of fig. 2.
Fig. 4 is a schematic structural diagram of fixing the special-shaped backing plate and the arc backing plate on the winding by the fixing device.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
referring to fig. 1 and 4, an iron yoke insulating mechanism is used for a transformer with a triangular three-dimensional wound core structure. The three-dimensional roll core structure is formed by combining three frame-shaped core parts 100 which are equilateral triangles. The vertical sides of the two single frames are fitted and fixed together to form a core column for mounting the winding 200, and the transverse side part of each single frame is the iron yoke part 101.
The insulation mechanism comprises special-shaped spacers 1, wherein the special-shaped spacers 1 are used for being placed between the end parts of two adjacent groups of windings 200 and the corresponding iron yoke parts 101.
As shown in figures 2 and 3, the special-shaped cushion block 1 comprises a rectangular plate 1-1 and an inner end plate 1-3 connected with the rectangular plate 1-1 through a transition plate 1-2. The whole special-shaped cushion block 1 is of a T-shaped structure, and the widths of the transition plate 1-2 and the inner end plate 1-3 are smaller than the width of the rectangular plate 1-1. The top surface of the transition plate 1-2 is a concave arc surface and is used for avoiding the yoke part 101, and arc inner angles 1-5 are respectively arranged on two sides of the transition plate 1-2 and are used for avoiding the core column part. The end part of the inner end plate 1-3 is provided with a chamfer 1-4, so that the interference between the core part of the triangular three-dimensional roll iron core structure and the adjacent special-shaped cushion block 1 is avoided.
The conventional backing plate is a small rectangular wood block, the contact area between the conventional backing plate and the winding 200 is limited, and the axial compression effect is poor. Compared with the traditional common wood cushion block, the integrated special-shaped cushion plate is adopted in the mechanism, the contact area between the special-shaped cushion plate and the winding 200 piece is increased by adding the transition plate 1-2 and the inner end plate 1-3, the axis compression effect is improved, and an insulating paperboard ring is omitted.
Furthermore, the bottom surface of the special-shaped cushion block 1 is provided with first oil grooves 1-7, the direction of the first oil grooves 1-7 is from the rectangular plate 1-1 to the inner end plate 1-3, the circulation of the inner space and the outer space is enhanced, and the heat dissipation effect is improved. Meanwhile, as shown in fig. 3, steps 1 to 8 are provided in the first oil grooves 1 to 7 so that the depth of the first oil grooves 1 to 7 at one end close to the rectangular plate 1 to 1 is greater than that at the other end, which serves to prevent the first oil grooves 1 to 7 from reducing the strength of the transition plates 1 to 2 and the inner end plates 1 to 3.
The iron yoke insulation mechanism further comprises an arc cushion block 2 which is used for being installed at the end portion of the winding 200 and located at the triangular vertex of the iron core structure, a second oil groove 2-1 is formed in the bottom of the arc cushion block 2, the second oil groove 2-1 is arranged along the arc radial direction of the arc cushion block 2, and the heat dissipation effect of the portion is guaranteed while auxiliary compression is achieved.
Further, as shown in fig. 4, in the present embodiment, six sets of special-shaped spacers 1 and six sets of arc spacers 2 are fixed on the triangular three-dimensional wound core structure by a fixing device, where the fixing device includes an upper clamp 3, a lower clamp 4, a first pressing plate 7, a second pressing plate 8, and a central screw 5.
The upper clamping piece 3 and the lower clamping piece 4 are both triangular frame structures and are respectively arranged above and below a winding 200 of the triangular three-dimensional wound iron core structure, and the iron yoke part 101 extends out of the middle part of the clamping piece frame. The first pressing plate 7 is arranged between the clamping piece and the special-shaped cushion block 1 in a stacked mode, and the second pressing plate 8 is arranged between the clamping piece and the arc cushion block 2 in a stacked mode. The first press plate 7 and the second press plate 8 are both wood.
As shown in figures 2 and 3, a rectangular plate 1-1 of the special-shaped cushion block 1 is provided with through holes 1-6. As shown in fig. 4, the central screw 5 sequentially passes through the upper clamp 3, the through holes 1-6 on the upper special-shaped cushion block 1, the through holes 1-6 on the lower special-shaped cushion block 1 and the lower clamp 4, and nuts are respectively installed at two ends of the central screw 5. The locking force is transmitted to the backing plate through the clamp and the pressure plate to compress the winding 200. An insulating pipe is sleeved outside the central screw 5.
Furthermore, a tensioning device 6 is further installed on the outer side of the clamping piece, the tensioning device 6 comprises a screw rod, an upper nut and a lower nut and further comprises a connecting pressing plate, the connecting pressing plate is in contact with the clamping piece, the screw rod penetrates through the connecting pressing plate, the nuts are installed at two ends of the screw rod, and clamping force is further applied to the clamping piece through the connecting pressing plate.
Claims (5)
1. The utility model provides an iron yoke insulating mechanism for three-dimensional transformer of rolling up iron core structure of triangle which characterized in that: the special-shaped cushion block (1) is used for being placed between the end parts of two adjacent groups of windings (200) and the corresponding iron yoke parts (101);
the special-shaped cushion block (1) comprises a rectangular plate (1-1) and an inner end plate (1-3) connected with the rectangular plate (1-1) through a transition plate (1-2); the widths of the transition plate (1-2) and the inner end plate (1-3) are smaller than the width of the rectangular plate (1-1); the top surface of the transition plate (1-2) is a concave arc surface; arc inner angles (1-5) are respectively arranged on two sides of the transition plate (1-2); the end part of the inner end plate (1-3) is provided with a chamfer (1-4);
the bottom surface of the special-shaped cushion block (1) is provided with a first oil groove (1-7), and the direction of the first oil groove (1-7) is from the rectangular plate (1-1) to the inner end plate (1-3).
2. The yoke insulator mechanism of claim 1, wherein: steps (1-8) are arranged in the first oil grooves (1-7), so that the depth of one end, close to the rectangular plate (1-1), of each first oil groove (1-7) is larger than that of the other end of each first oil groove.
3. The iron yoke insulating mechanism according to claim 1 or 2, wherein: the transformer is characterized by further comprising an arc cushion block (2) which is used for being installed at the end part of the winding (200) and located at the triangular vertex of the iron core structure, wherein a second oil groove (2-1) is formed in the bottom of the arc cushion block (2), and the second oil groove (2-1) is arranged in the arc radial direction of the arc cushion block (2).
4. The yoke insulator mechanism of claim 3, wherein: the three-dimensional iron core rolling structure is characterized by further comprising a fixing device for fixing the special-shaped cushion block (1) and the arc cushion block (2) on the three-dimensional triangular iron core rolling structure.
5. The yoke insulator mechanism of claim 4, wherein: the fixing device comprises an upper clamping piece (3), a lower clamping piece (4), a first pressing plate (7), a second pressing plate (8) and a central screw rod (5);
the upper clamping piece (3) and the lower clamping piece (4) are both triangular and are respectively arranged above and below a winding (200) of the triangular three-dimensional wound iron core structure; the first pressing plate (7) is arranged between the clamping piece and the special-shaped cushion block (1) in an overlapped mode, and the second pressing plate (8) is arranged between the clamping piece and the arc cushion block (2) in an overlapped mode;
the special-shaped cushion block is characterized in that a through hole (1-6) is formed in a rectangular plate (1-1) of the special-shaped cushion block (1), the central screw (5) sequentially penetrates through the upper clamping piece (3), the through hole (1-6) in the upper special-shaped cushion block (1), the through hole (1-6) in the lower special-shaped cushion block (1) and the lower clamping piece (4), and nuts are respectively installed at two ends of the central screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515577.0U CN210120032U (en) | 2019-09-12 | 2019-09-12 | Iron yoke insulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515577.0U CN210120032U (en) | 2019-09-12 | 2019-09-12 | Iron yoke insulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210120032U true CN210120032U (en) | 2020-02-28 |
Family
ID=69617315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515577.0U Active CN210120032U (en) | 2019-09-12 | 2019-09-12 | Iron yoke insulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210120032U (en) |
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2019
- 2019-09-12 CN CN201921515577.0U patent/CN210120032U/en active Active
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