CN215183467U - Transformer body structure and transformer of transformer - Google Patents

Abstract

The utility model provides a transformer body structure and a transformer of a transformer, belonging to the technical field of transformers, wherein, the body structure comprises an iron yoke insulating part and a phase partition plate, two ends of the iron yoke insulating part are respectively arranged on coils of two adjacent windings, and the two ends of the iron yoke insulating part are jointly constrained by the iron yoke and the coils to form a plug for the interval between the two adjacent windings; the phase separation plate is vertically arranged between the coils of the two adjacent windings to separate the coils of the two adjacent windings, and two ends of the phase separation plate are respectively limited and restricted by iron yoke insulating parts positioned at the top end and the bottom end of the coil. The utility model discloses a ware body structure of transformer is through striding yoke insulating part and locating two winding coils mutually, and can separate coil and yoke, effectively avoids the high pressure along the creepage of yoke insulating part to yoke to through retrain the yoke insulating part at both ends with the space bar on, and can reduce the creepage distance that needs between yoke and coil, thereby be favorable to making transformer ware body compacter.

Description

Transformer body structure and transformer of transformer

Technical Field

The utility model relates to a transformer technical field, concretely relates to ware body structure of transformer, in addition the utility model discloses still relate to an use the transformer that has this ware body structure.

Background

In the practical use process of the transformer, insulation breakdown can directly affect the performance of the transformer, so that the transformer cannot normally operate. The insulation of the iron yoke of the high-voltage transformer can prevent the breakdown between the high-voltage coil and the low-voltage coil and the iron yoke, so that the insulation performance of the iron yoke insulation part of the high-voltage transformer directly influences the stability and the operation safety of the transformer.

In the traditional transformer body structure, independent upper and lower iron yoke insulators are respectively arranged above and below each phase coil, and phase partition plates are arranged at intervals to form a transformer body structure; in order to prevent high voltage creepage from the insulating end face to the yoke, a longer safety distance is required to be provided between the yoke and the coil end face, thereby preventing discharge between the two coils.

In the above-mentioned transformer body structure, since the distance between the coil and the yoke is extended, the space occupied by the whole transformer body is redundant, which is not favorable for the compact assembly design of the whole transformer body.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the interval overlength that the transformer set up for the anti-creep electricity among the prior art, and leads to the great defect of ware body overall dimension to a ware body structure of transformer is provided.

In order to solve the technical problem, the utility model provides a ware body structure of transformer, include:

the two ends of the iron yoke insulating part are respectively erected on the coils of the two adjacent windings and are constrained together by the iron yoke and the coils to form plugging for the interval between the two adjacent windings;

and the phase separation plate is vertically arranged between the coils of the two adjacent windings to separate the coils of the two adjacent windings, and two ends of the phase separation plate are respectively limited and restricted by the iron yoke insulating parts positioned at the top end and the bottom end of the coil.

Optionally, the method further includes: and the pressure plate is pressed between the clamping piece and the coil and is in parallel butt joint with the iron yoke insulating piece.

Optionally, a diversion trench for diversion is arranged at one end of the pressure plate piece facing the coil.

Optionally, one side of the iron yoke insulating member facing the coil is provided with a plurality of oil guide grooves, and the phase partition plates are inserted in the oil guide grooves.

Optionally, a plurality of cushion blocks arranged at intervals are arranged at one end of the iron yoke insulating part facing the coil, and the oil guide groove is formed by the interval between the adjacent cushion blocks; the cushion block is provided with a clamping groove used for containing the end part of the phase partition plate, and the phase partition plate is inserted in the clamping groove and blocks the communication of the oil guide grooves.

Optionally, two ends of the iron yoke insulator respectively protrude outwards to form an extension portion adapted to the winding path of the coil.

Optionally, the pressing plate member includes a first pressing plate disposed between two adjacent windings, and second pressing plates disposed at two ends of the windings.

Optionally, the first pressing plates located on the same side of the winding are arranged at intervals, and the intervals between the first pressing plates are used for passing through the wire outlet end of the winding.

Optionally, the iron yoke insulator faces one side of the coil and is provided with a plurality of oil guide grooves, and one end of the first pressing plate, facing the coil, is provided with a flow guide groove which is perpendicular to the oil guide grooves and used for guiding flow.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a transformer body structure, wherein, two ends of an iron yoke insulating part are respectively arranged on coils of two adjacent windings, and the two adjacent windings are blocked by the joint restraint of the iron yoke and the coils; through the arrangement, the iron yoke insulating part forms the separation between the coil and the iron yoke, so that the problem of coil creepage is effectively avoided, and the interval between the iron yoke and the coil can be relatively reduced;

and through vertically locating the phase partition plate between the coils of two adjacent windings to separate the coils of two adjacent windings, the both ends of phase partition plate are respectively through the spacing restraint of the yoke insulator that is located coil top and bottom, and can increase the creepage distance between the adjacent looks on the basis of reducing adjacent looks interval relatively, thereby be favorable to the holistic compact assembly of transformer body.

2. The utility model provides a ware body structure of transformer, through setting up pressure plate spare, this pressure plate spare and the parallel butt joint of indisputable yoke insulating part, and can further reduce the distance between indisputable yoke and the coil under the axial state of compressing tightly of guaranteeing indisputable yoke and coil.

3. The utility model provides a ware body structure of transformer, clamp plate spare are equipped with the guiding gutter for the water conservancy diversion towards the one end of coil to be convenient for the transformer oil flow between coil and yoke under the immersion oil state, be favorable to the holistic heat dissipation of transformer and insulating effect.

4. The utility model provides a transformer body structure, the yoke insulator is equipped with a plurality of cushion blocks arranged at intervals towards one end of the coil, and the interval between the adjacent cushion blocks forms the oil guide groove; the cushion block is provided with a clamping groove used for containing the end part of the phase partition plate, and the phase partition plate is inserted in the clamping groove and blocks the communication of the oil guide grooves.

Through setting up from this, block the intercommunication effect of leading the oil groove because of the looks space bar, when the transformer is under the immersion oil state, transformer oil flows into the interval between the adjacent group because of blocking of looks space bar to further strengthen transformer oil and take away the thermal effect of transformer, and be favorable to improving dielectric strength and arc extinction.

5. The utility model provides a ware body structure of transformer, the both ends of indisputable yoke insulating part are outwards outstanding respectively and are formed with the adaptation the coil is around establishing the extension on route.

Through the arrangement, the iron yoke insulating part can be matched with a winding path of the coil, so that a better insulating effect is achieved.

6. The utility model provides a ware body structure of transformer is located each of winding homonymy first clamp plate interval sets up, each interval between first clamp plate is used for the drawing-in the leading-out terminal of winding.

The first pressing plates arranged at intervals can conveniently adjust the pressing degree between different windings and the iron yoke, and are beneficial to axial pressing of the windings according to the actual occupied space of different windings; in addition, the first pressing plates arranged at intervals are convenient to extend out of the winding wire outlet end, so that the whole assembly and arrangement of the transformer are facilitated.

7. The utility model provides a ware body structure of transformer, yoke insulator orientation one side of coil is equipped with a plurality of oil grooves of leading, first clamp plate orientation the one end of coil is equipped with relatively lead the guiding gutter for the water conservancy diversion that the oil groove set up perpendicularly.

Through setting up from this, the guiding gutter sets up with leading the oil groove is perpendicular and can be convenient for transformer oil to carry out the scattered flow all around in the transformer to effectively strengthen insulating and radiating effect.

Furthermore, the utility model also provides a transformer, be applied on this transformer as above ware body structure, the transformer have for prior art beneficial effect the same with aforementioned ware body structure, no longer give unnecessary details here.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of a transformer body structure of a transformer according to the present invention;

FIG. 2 is a partial schematic structural view of the section G-G in FIG. 1;

FIG. 3 is a schematic structural view of a section F-F in FIG. 1;

fig. 4 is a schematic structural diagram of the iron yoke insulator according to the present invention.

Description of reference numerals:

1. a winding; 2. an iron yoke insulator; 4. a phase partition plate; 5. an iron yoke; 6. a clamp;

201. cushion blocks; 202. an oil guide groove; 203. a card slot; 204. an extension portion;

301. a first platen; 302. a second platen; 3021. an extension end; 3022. a body end; 303. and a diversion trench.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment relates to a transformer body structure of a transformer, which comprises an iron yoke insulating part and a phase separation plate, wherein two ends of the iron yoke insulating part are respectively erected on coils of two adjacent windings and are constrained by the iron yoke and the coils together to form a plug for the interval between the two adjacent windings; the phase separation plate is vertically arranged between the coils of the two adjacent windings to separate the coils of the two adjacent windings, and two ends of the phase separation plate are respectively limited and restricted by iron yoke insulating parts positioned at the top end and the bottom end of the coil.

Based on the above overall structure design, a specific embodiment of the body structure of the transformer according to this embodiment is shown in fig. 1, the yoke insulator 2 may be made of an insulating material, such as a hard cardboard, and the yoke insulator 2 is compressed in the space between the coil end face and the yoke 5 to form an axial compression state of the winding 1 on the yoke 5, so as to improve the installation stability between the winding 1 and the yoke 5, and facilitate the compact arrangement of the transformer body. The yoke insulators 2 are sets of windings 1, and the body structures described in the present embodiment are all disposed on a three-phase transformer, which will not be described below.

As shown in fig. 2 and 4, a plurality of oil guide grooves 202 are formed in one side of the iron yoke insulating member 2 facing the coil, and the phase partition plates 4 are inserted into the oil guide grooves 202. In a preferred embodiment, one side of the yoke insulator 2 is flat and is used for abutting against the lower end face of the flat yoke 5, and the other side is provided with a plurality of spacers 201 arranged at intervals towards one end of the coil, the spacers 201 may be paper spacers 201 integrally formed with the yoke 5, and each of the spacers 201 has a certain extension length and is arranged in parallel with each other, so as to form an oil guiding groove 202 through which transformer oil flows on the yoke insulator 2.

Here, the spacers 201 are formed with slots 203 for receiving ends of the spacers 4, the spacers 4 are inserted into the slots 203 and block the communication of the oil guiding grooves 202, and the slots 203 may be formed on several spacers 201 or on each spacer 201, as long as the slots 203 are coaxially arranged, so as to facilitate the insertion of the spacers 4. It should be noted that the specific material of the phase separation plate 4 can refer to the prior art, and the size thereof should match the arrangement of the adjacent windings 1, which is not described in detail herein.

Through with phase space 4 cartridge between each cushion 201, because of phase space 4 blocks the intercommunication effect of leading oil groove 202, when the transformer is under the immersion oil state, transformer oil flows into the interval between the adjacent group because of blocking of phase space 4 to further strengthen transformer oil and take away the thermal effect of transformer, and be favorable to improving dielectric strength and arc extinction effect.

In addition, outwards stand out respectively in the both ends of yoke insulator 2 and be formed with the adaptation coil and wind the extension 204 of establishing the route, it is specific, the both sides of this yoke insulator 2 are the inward sunken arc form, when yoke insulator 2 sets up on two adjacent windings 1, the lower terminal surface of yoke insulator 2 coincide with the up end of coil, thereby when guaranteeing better insulating effect, prevent its terminal surface interference with yoke 5, and further reduce the use material of yoke insulator 2, thereby do benefit to and reduce use cost.

As shown in fig. 1 and 3, the body structure of the transformer in this embodiment further includes a pressing plate member, which is pressed between the clip member 6 and the coil, and the pressing plate member is butted in parallel with the yoke insulator 2. The clamping piece can be of an existing mature structure, and can clamp the iron yoke to prevent deviation on one hand and can also play an axial pressing role on the pressure plate piece on the other hand. The overall dimensions of the pressure plate member should be greater than those of the yoke insulator 2 to facilitate axial compression of the winding 1 coil. And the pressing plate pieces are arranged in a parallel butt joint mode, so that the occupied space of the pressing plate pieces and the iron yoke 5 in the height direction of the transformer body structure can be further reduced, and the integral compact arrangement of the transformer body structure is facilitated.

On the basis of arranging the pressing plate component, the pressing plate component comprises first pressing plates 301 arranged between two adjacent windings 1 and second pressing plates 302 arranged at two ends of the windings 1, the first pressing plates 301 arranged at the same side of the windings 1 are arranged at intervals, and the intervals between the first pressing plates 301 are used for penetrating through the wire outlet ends of the windings 1. Here, both ends of the first presser plate 301 have extension ends 3021 protruding outward to match the winding path, respectively, and butting ends for butting in parallel with the yoke insulator 2, the butting ends being sized to match the end face of the yoke insulator 2.

The arrangement of the first pressing plates 301 arranged at intervals can facilitate the adjustment of the compression degree between different windings 1 and the iron yoke 5, and facilitate the axial compression of the windings 1 according to the actual occupation space of different windings 1; and each interval is used as a wire outlet end of the winding 1, so that the whole space utilization rate of the transformer body structure is improved, and the whole arrangement of the transformer body is facilitated.

As also shown in fig. 1, the whole structure of the second pressing plate 302 is configured to cover one side end surface of the winding 1, and has two extending ends 3021 protruding towards the adjacent first pressing plate 301, and a main body end 3022 located in the middle of the winding 1, wherein the end of the first pressing plate 301 and the end of the second pressing plate 302 facing the coil are both provided with a guiding groove 303 for guiding the flow, and in this embodiment, it is preferable that the guiding groove 303 of the first pressing plate 301 and the guiding groove 303 of the extending end 3021 of the second pressing plate 302 are disposed perpendicular to the oil guiding groove 202 of the yoke insulator 2, and the guiding groove 303 of the main body end 3022 of the second pressing plate 302 is disposed in the same direction as the oil guiding groove 202, so as to facilitate the uniform flow of the transformer oil on the body structures and to achieve a better dispersion distribution effect between the body structures.

Example 2

The present embodiment relates to a transformer to which the body structure as described in the first embodiment is applied, and by applying the body structure, it is possible to reduce the distance between the yoke and the winding and between the adjacent windings on the basis of avoiding the creepage, thereby facilitating the compact assembly of the entire transformer.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims (10)

1. A body structure of a transformer, comprising:

the two ends of the iron yoke insulating part (2) are respectively erected on the coils of the two adjacent windings (1) and are constrained by the iron yoke (5) and the coils together to form the interval plugging of the two adjacent windings (1);

the phase separation plate (4) is vertically arranged between the coils of the two adjacent windings (1) to separate the coils of the two adjacent windings (1), and two ends of the phase separation plate (4) are respectively limited and constrained by the iron yoke insulating parts (2) positioned at the top end and the bottom end of the coil.

2. The body structure of a transformer according to claim 1, further comprising: and the pressure plate is pressed between the clamping piece (6) and the coil and is in parallel butt joint with the iron yoke insulating piece (2).

3. The body structure of a transformer according to claim 2, characterized in that the end of the pressure plate element facing the coil is provided with a flow guiding groove (303) for guiding flow.

4. The body structure of a transformer according to claim 1, wherein said yoke insulator (2) is provided with oil guide grooves (202) at a side facing said coil, and said phase separator (4) is inserted in said oil guide grooves (202).

5. The body structure of the transformer according to claim 4, wherein the end of the yoke insulator (2) facing the coil is provided with a plurality of spacers (201) arranged at intervals, and the interval between the adjacent spacers (201) forms the oil guide groove (202);

the gasket (201) is provided with a clamping groove (203) for accommodating the end part of the phase partition plate (4), and the phase partition plate (4) is inserted into the clamping groove (203) and blocks the communication of the oil guide grooves (202).

6. The body structure of a transformer according to claim 1, wherein both ends of the yoke insulator (2) are respectively formed with an extension (204) protruding outward to fit the winding path of the coil.

7. The body structure of a transformer according to claim 2, characterized in that said pressure plate members comprise a first pressure plate (301) disposed between two adjacent windings (1) and a second pressure plate (302) disposed at both ends of said windings (1).

8. The body structure of the transformer according to claim 7, characterized in that the first pressing plates (301) on the same side of the winding (1) are arranged at intervals, and the intervals between the first pressing plates (301) are used for passing through the outlet end of the winding (1).

9. The body structure of a transformer according to claim 7, wherein the yoke insulator (2) is provided with oil guide grooves (202) on a side facing the coil, and one end of the first presser plate (301) facing the coil is provided with flow guide grooves (303) for guiding flow, which are vertically arranged relative to the oil guide grooves (202).

10. A transformer, characterized in that the body structure of any one of claims 1-9 is applied to the transformer.

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