CN222734789U - A pressure ring structure of oil-immersed transformer - Google Patents

Abstract

The utility model belongs to the technical field of transformer pressing plates, and particularly relates to an oil immersed transformer pressing ring structure, which comprises a pressing plate body, a flow guiding assembly and a flow guiding assembly, wherein the pressing plate body is provided with a first side pressing plate, a second side pressing plate, a first arc pressing plate and a second arc pressing plate, the first arc pressing plate and the second arc pressing plate are arranged between opposite ports of the first side pressing plate and the second side pressing plate, the first side pressing plate and the second side pressing plate are arranged on a winding, a first connecting rod and a second connecting rod are respectively arranged between two opposite sides of the bottoms of the first side pressing plate and the second side pressing plate, the first side pressing plate and the second side pressing plate are supported through the first connecting rod and the second connecting rod, and the flow guiding assembly is arranged in the first side pressing plate and the second side pressing plate and is used for improving the insulation effect of the winding. The utility model provides an oil-immersed transformer pressing plate structure which improves the stability of windings and the insulation effect between winding joints.

Description

Pressing ring structure of oil immersed transformer

Technical Field

The utility model belongs to the technical field of transformer pressing plates, and particularly relates to a pressing ring structure of an oil immersed transformer.

Background

Oil transformers, also known as oil immersed transformers. It is a structural form of a transformer, i.e. the coils of the transformer are immersed in oil. Because of the fire prevention requirement, the oil immersed transformer is generally arranged in or out of an independent transformer room and has the characteristics of large volume, low cost, simple maintenance, good heat dissipation, strong overload capacity and wide environment adaptation. When the transformer suddenly short-circuits, the winding has a relatively large axial force. Axial compression of the windings is required.

The utility model discloses a Chinese patent publication No. CN206976147U, which discloses an alternate pressing plate device for a transformer body, comprising a low-voltage side upper pressing plate, a high-voltage side upper pressing plate, a lower pressing plate and a transformer body group, wherein the transformer body group is formed by connecting three transformer bodies side by side, the top of the low-voltage side and the top of the high-voltage side of the transformer body group are respectively provided with a low-voltage side upper pressing plate and a high-voltage side upper pressing plate, the bottom of the low-voltage side and the bottom of the high-voltage side of the transformer body group are respectively provided with a lower pressing plate, the two ends of the low-voltage side upper pressing plate, the two ends of the high-voltage side upper pressing plate and the two ends of the lower pressing plate are respectively positioned at the coil tops of the transformers on the two sides, the middle parts of the low-voltage side upper pressing plate, the middle parts of the high-voltage side upper pressing plate and the lower pressing plate are respectively provided with a groove I, a groove II and a groove III, the back surfaces of the three boards are respectively adhered with a plurality of backing plates, the groove I, the groove II and the two sides of the groove III are respectively provided with a limiting hole, and the low-voltage side upper pressing plate and the high-voltage side upper pressing plate are fixedly connected with the lower pressing plate through screw rods and the corresponding limiting holes.

Although the above patent does not generate rotary displacement when the transformer encounters sudden short circuit, the transformer is prevented from being utilized to protect the transformer due to the fact that the pressing plate rotates to deviate from the pressing position, the pressing plate of the above patent is small in size, the contact area of the pressing plate structure and the winding is low, and the stability of the winding and the insulation effect between the windings are poor.

Accordingly, in view of the above-described problems, an oil-immersed transformer platen structure is provided that improves the stability of windings and the insulation effect between windings.

Disclosure of utility model

The utility model aims at solving the technical problems and provides an oil immersed transformer pressing plate structure for improving the stability of windings and the insulation effect between winding joints.

In view of the above, the present utility model provides a compression ring structure of an oil immersed transformer, comprising:

The device comprises a pressing plate body, a first connecting rod and a second connecting rod are arranged between two opposite sides of the bottoms of the first side pressing plate and the second side pressing plate respectively, and the first side pressing plate and the second side pressing plate are supported by the first connecting rod and the second connecting rod;

The guide assembly is arranged in the first side pressing plate and the second side pressing plate and is used for improving the insulation effect of the winding;

Wherein, the water conservancy diversion subassembly includes:

the first diversion trench is arranged on the bottom surface of the first side pressing plate;

the second diversion trench is arranged on the bottom surface of the second side pressing plate;

The arc-shaped connecting rod is arranged on the first connecting rod and the second connecting rod, and a gap is reserved between the arc-shaped connecting rod and the first connecting rod and between the arc-shaped connecting rod and the second connecting rod.

In this technical scheme, if the transformer has a great axial force when the sudden short circuit, at this moment need compress tightly the axial of wire winding to the clamp plate, avoid the wire winding to break down the back damage, increase the life of winding, but present clamp plate and winding area of contact are lower, lead to the poor and insulating effect between the winding of stability of winding, for this reason, set up first side clamp plate, second side clamp plate, first arc clamp plate, second arc clamp plate, head rod and second connecting rod laminating and compress tightly with the winding top surface, first side clamp plate, second side clamp plate, the cross-section of first arc clamp plate and second arc clamp plate is according to the setting of winding cross-section.

Specifically, during operation, first side clamp plate, second side clamp plate, first arc clamp plate and second arc clamp plate, head rod and second connecting rod are with winding top surface laminating and compress tightly to improve the stability of winding and the insulating effect between the winding, set up first guiding gutter and second guiding gutter and improve the flow of insulating oil at the winding top surface and then improve the heat dissipation to the winding, set up the arc connecting rod, make head rod and second connecting rod leave the space, improve the mobility of insulating oil, and then improve the heat dissipation of transformer.

In the above technical scheme, further, the first side pressing plate and the second side pressing plate and the first arc pressing plate and the second arc pressing plate adopt polyester glue as an adhesive.

In this technical scheme, through using the adhesive that polyester gum was as first side board, second side board, first arc clamp plate and second arc clamp plate, have that viscosity is low, infiltration speed is fast, can make first side board, second side board, first arc clamp plate and second arc clamp plate more firm, have good adhesion to multiple material, have good shock-resistant, vibration-resistant, performance such as wear-resisting moreover.

In any of the above technical solutions, further, mounting plates are disposed on two sides of the first arc-shaped pressing plate and two sides of the second arc-shaped pressing plate.

In this technical scheme, the left and right sides of first arc clamp plate and second arc clamp plate all is provided with the mounting panel, through mounting panel with first arc clamp plate and second arc clamp plate fixed mounting on head rod and second connecting rod.

In any of the above technical solutions, further, positioning holes are formed in parallel on the mounting plate.

In this technical scheme, set up the locating hole on the mounting panel, be convenient for install the mounting panel on head rod and second connecting rod through bolted connection's mode to fix first arc clamp plate and second arc clamp plate, make first arc clamp plate and second arc clamp plate laminate more and compress tightly the winding top surface.

In any of the above technical solutions, further, an inner wall of the positioning hole is provided with an internal thread.

In this technical scheme, the locating hole inner wall is provided with the internal thread that passes through threaded connection with bolt surface external screw thread, so convenient dismantlement, simple to operate.

In any of the above technical solutions, further, at least three pressing plate bodies are provided, the pressing plate bodies are distributed along the length direction of the first connecting rod and the second connecting rod, and two adjacent pressing plate bodies are separated from each other at opposite sides.

In this technical scheme, during the use, separate through two adjacent clamp plate bodies and form the gap to ensure insulating oil mobility, avoid influencing the transformer heat dissipation.

In any one of the above technical solutions, further, a clamping groove is formed inside between the first side pressing plate and the second side pressing plate and between the first arc pressing plate and the second arc pressing plate, a clamping block is arranged between the first connecting rod and the second connecting rod, the clamping block is multiple, and the clamping blocks are distributed along the length direction of the first connecting rod and the second connecting rod and correspond to the clamping groove.

In this technical scheme, during the use, with draw-in groove joint that forms between first side clamp plate, second side clamp plate, first arc clamp plate and the second arc clamp plate on the fixture block to fix a position first side clamp plate, second side clamp plate, first arc clamp plate and second arc clamp plate, make first side clamp plate, second side clamp plate, first arc clamp plate and second arc clamp plate can be more accurate laminating winding top surface, make it more stable.

In any of the above technical solutions, further, the outer surface of the clamping block is uniformly provided with protrusions at intervals, the inner wall of the clamping groove is provided with grooves at positions corresponding to the protrusions, and the protrusions are in clamping fit with the grooves.

In this technical scheme, through draw-in groove joint on the fixture block, the lug embedding draw-in groove of fixture block surface is in to the recess carries out the chucking to the lug, makes first side clamp plate, second side clamp plate, first arc clamp plate and second arc clamp plate more stable fix on head rod and second connecting rod.

The beneficial effects of the utility model are as follows:

1. The flow of the insulating oil on the top surface of the winding is improved through the first diversion trench and the second diversion trench, so that the heat dissipation of the winding is improved, and the arc-shaped connecting rods are arranged, so that gaps are reserved between the first connecting rods and the second connecting rods, the fluidity of the insulating oil is improved, the heat dissipation of the transformer is improved, and meanwhile, the stability of the winding and the insulation effect between the windings can be improved;

2. By using the polyester glue as an adhesive, the first side pressing plate, the second side pressing plate, the first arc pressing plate and the second arc pressing plate are firmer, and the performances of impact resistance, vibration resistance, wear resistance and the like are improved;

3. The positioning holes are formed in the mounting plate, so that people can conveniently pass through the positioning holes through the bolts, and the mounting plate is mounted on the first connecting rod and the second connecting rod, so that the mounting plate is convenient to detach and mount;

4. The clamping groove is clamped on the clamping block, and the lug on the outer surface of the clamping block is embedded into the groove of the clamping groove, so that the groove clamps the lug, and the first side pressing plate, the second side pressing plate, the first arc pressing plate and the second arc pressing plate are more stably fixed on the first connecting rod and the second connecting rod.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a first cross-sectional view of the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a partial perspective view of the present utility model;

FIG. 5 is a second cross-sectional view of the present utility model;

The drawing comprises a pressing plate body 1, a first side pressing plate 101, a second side pressing plate 102, a first arc pressing plate 103, a second arc pressing plate 104, a first connecting rod 105, a second connecting rod 106, a second connecting rod 2, a diversion component 21, a first diversion trench 22, a second diversion trench 23, an arc connecting rod 24, a gap 3, a mounting plate 4, a positioning hole 5, an internal thread 6, a clamping groove 7, a clamping block 8, a convex block 9 and a groove.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc., generally refer to the orientation or positional relationship shown in the drawings, and merely for convenience of describing the present application and simplifying the description, and these orientation terms do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application, but rather the orientation terms "inside and outside" refer to the inside and outside with respect to the outline of each component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

As shown in fig. 1-5, this embodiment provides a compression ring structure of an oil immersed transformer, including:

The device comprises a pressing plate body 1, wherein the pressing plate body 1 is provided with a first side pressing plate 101, a second side pressing plate 102, a first arc pressing plate 103 and a second arc pressing plate 104, wherein the first arc pressing plate 103 and the second arc pressing plate 104 are arranged between opposite ports of the first side pressing plate 101 and the second side pressing plate 102, the first side pressing plate 101 and the second side pressing plate 102 are arranged on a winding, a first connecting rod 105 and a second connecting rod 106 are respectively arranged between two opposite sides of the bottoms of the first side pressing plate 101 and the second side pressing plate 102, and the first side pressing plate 101 and the second side pressing plate 102 are supported by the first connecting rod 105 and the second connecting rod 106;

The flow guide assembly 2 is arranged in the first side pressing plate 101 and the second side pressing plate 102 and is used for improving the fluidity of insulating oil on the top surface of the winding;

Wherein, the water conservancy diversion subassembly 2 includes:

the first diversion trench 21 is arranged on the bottom surface of the first side pressing plate 101;

the second diversion trench 22 is arranged on the bottom surface of the second side pressing plate 102;

The arc-shaped connecting rod 23 is arranged on the first connecting rod 105 and the second connecting rod 106, and a gap 24 is reserved between the arc-shaped connecting rod 23 and the first connecting rod 105 and the second connecting rod 106.

In this technical scheme, if the transformer has a relatively large axial force when suddenly short-circuited, the winding needs to be compressed by the pressing plate to avoid damage after the winding fails and prolong the service life of the winding, but the contact area between the current pressing plate and the winding is low, so that the stability of the winding and the insulation effect between the windings are poor, and therefore, the first side pressing plate 101, the second side pressing plate 102, the first arc pressing plate 103, the second arc pressing plate 104, the first connecting rod 105 and the second connecting rod 106 are attached to the top surface of the winding and are compressed, and the cross sections of the first side pressing plate 101, the second side pressing plate 102, the first arc pressing plate 103 and the second arc pressing plate 104 are formed according to the arrangement of the cross sections of the winding.

Specifically, during operation, first side clamp plate 101, second side clamp plate 102, first arc clamp plate 103 and second arc clamp plate 104, head rod 105 and second connecting rod 106 are with the laminating of winding top surface and compress tightly, improve the stability of winding and the insulating effect between the winding, set up first guiding gutter 21 and second guiding gutter 22 and improve the flow of insulating oil at the winding top surface and then improve the heat dissipation to the winding, set up arc connecting rod 23 for head rod 105 and second connecting rod 106 leave space 24, improve the mobility of insulating oil, and then improve the heat dissipation of transformer.

As shown in fig. 1 to 3, in the present embodiment, preferably, the first and second side pressing plates 101 and 102 and the first and second arc pressing plates 103 and 104 use polyester glue as an adhesive.

In this technical scheme, through using the adhesive that polyester glue was regarded as first side board 101, second side board 102, first arc clamp plate 103 and second arc clamp plate 104, have that viscosity is low, infiltration speed is fast, can make first side board 101, second side board 102, first arc clamp plate 103 and second arc clamp plate 104 more firm, have good adhesion to multiple material, have good shock resistance, vibration resistance, wear resistance etc. moreover.

As shown in fig. 1 and 4, in the present embodiment, preferably, both sides of the first and second arc-shaped pressing plates 103 and 104 are provided with the mounting plates 3.

In this technical scheme, the left and right sides of first arc clamp plate 103 and second arc clamp plate 104 all are provided with mounting panel 3, pass through mounting panel 3 with first arc clamp plate 103 and second arc clamp plate 104 fixed mounting on head rod 105 and second connecting rod 106.

As shown in fig. 1 and 4, in the present embodiment, the positioning holes 4 are preferably formed in parallel on the mounting plate 3.

In this technical scheme, set up locating hole 4 on mounting panel 3, be convenient for install mounting panel 3 on head rod 105 and second connecting rod 106 through bolted connection's mode to fix first arc clamp plate 103 and second arc clamp plate 104, make first arc clamp plate 103 and second arc clamp plate 104 laminate more and compress tightly the winding top surface.

In the present embodiment, as shown in fig. 4, the inner wall of the positioning hole 4 is preferably provided with an internal thread 5.

In this technical scheme, locating hole 4 inner wall is provided with the internal thread 5 through threaded connection with bolt surface external screw thread, so conveniently dismantles, simple to operate.

As shown in fig. 1, in the present embodiment, preferably, at least three platen bodies 1 are provided, the platen bodies 1 are distributed along the length direction of the first connecting rod 105 and the second connecting rod 106, and two adjacent platen bodies 1 are spaced apart at opposite sides.

In this technical scheme, during the use, separate through two adjacent clamp plate bodies 1 and form the gap to ensure insulating oil mobility, avoid influencing the transformer heat dissipation.

Example 2:

The embodiment provides a compression ring structure of an oil immersed transformer, which has the following technical characteristics besides the technical scheme of the embodiment.

As shown in fig. 1, 3 and 4, in the present embodiment, the clamping groove 6 is preferably formed between the first side pressing plate 101 and the second side pressing plate 102 and between the first arc pressing plate 103 and the second arc pressing plate 104, and the clamping blocks 7 are arranged between the first connecting rod 105 and the second connecting rod 106, and the clamping blocks 7 are plural and distributed along the length direction of the first connecting rod 105 and the second connecting rod 106, and the clamping blocks 7 correspond to the clamping groove 6.

In this technical scheme, during the use, with draw-in groove 6 joint that forms between first side board 101, second side board 102, first arc clamp plate 103 and the second arc clamp plate 104 on fixture block 7 to fix a position first side board 101, second side board 102, first arc clamp plate 103 and second arc clamp plate 104, make first side board 101, second side board 102, first arc clamp plate 103 and second arc clamp plate 104 can more accurate laminating winding top surface, make it more stable.

As shown in fig. 5, in this embodiment, preferably, the outer surface of the clamping block 7 is uniformly provided with protrusions 8 at intervals, and the inner wall of the clamping groove 6 is provided with grooves 9 at positions corresponding to the protrusions 8, and the protrusions 8 are in clamping fit with the grooves 9.

In this technical scheme, through draw-in groove 6 joint on fixture block 7, the lug 8 embedding draw-in groove 6 of fixture block 7 surface is in the recess 9 to recess 9 carries out the chucking to lug 8, makes first side board 101, second side board 102, first arc clamp plate 103 and second arc clamp plate 104 more stable fix on head rod 105 and second connecting rod 106.

The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.

Claims (8)

1. An oil immersed transformer clamping ring structure, which is characterized by comprising:

The transformer comprises a transformer body (1), wherein the transformer body (1) is provided with a first side transformer (101) and a second side transformer (102) and a first arc transformer (103) and a second arc transformer (104) which are arranged between opposite ports of the first side transformer (101) and the second side transformer (102), the first side transformer (101) and the second side transformer (102) are arranged on a winding, a first connecting rod (105) and a second connecting rod (106) are respectively arranged between two opposite sides of the bottoms of the first side transformer (101) and the second side transformer (102), and the first side transformer (101) and the second side transformer (102) are supported by the first connecting rod (105) and the second connecting rod (106);

The flow guide assembly (2) is arranged in the first side pressing plate (101) and the second side pressing plate (102) and is used for improving the insulation effect of the winding;

wherein, the water conservancy diversion subassembly (2) includes:

The first diversion trench (21) is arranged on the bottom surface of the first side pressing plate (101);

the second diversion trench (22) is arranged on the bottom surface of the second side pressing plate (102);

Arc connecting rod (23) set up in on first connecting rod (105) with second connecting rod (106), arc connecting rod (23) with first connecting rod (105) with leave space (24) between second connecting rod (106).

2. The oil immersed transformer pressure ring structure according to claim 1, wherein the first side pressure plate (101) and the second side pressure plate (102) and the first arc pressure plate (103) and the second arc pressure plate (104) use polyester glue as an adhesive.

3. The oil immersed transformer compression ring structure according to claim 1, wherein mounting plates (3) are arranged on two sides of the first arc-shaped pressing plate (103) and the second arc-shaped pressing plate (104).

4. A pressing ring structure of an oil immersed transformer according to claim 3, wherein positioning holes (4) are formed in the mounting plate (3) in parallel.

5. The compression ring structure of the oil immersed transformer according to claim 4, wherein the inner wall of the positioning hole (4) is provided with an internal thread (5).

6. An oil immersed transformer compression ring structure according to claim 1, wherein at least three compression plate bodies (1) are arranged, the compression plate bodies (1) are distributed along the length direction of the first connecting rod (105) and the second connecting rod (106), and two adjacent compression plate bodies (1) are separated at opposite sides.

7. The oil immersed transformer clamping ring structure according to claim 1, wherein clamping grooves (6) are formed between the first side pressing plate (101) and the second side pressing plate (102) and between the first arc pressing plate (103) and the second arc pressing plate (104), clamping blocks (7) are arranged between the first connecting rod (105) and the second connecting rod (106) in a facing mode, the clamping blocks (7) are multiple and distributed along the length direction of the first connecting rod (105) and the second connecting rod (106), and the clamping blocks (7) correspond to the clamping grooves (6).

8. The oil immersed transformer compression ring structure according to claim 7, wherein protruding blocks (8) are uniformly arranged on the outer surface of the clamping block (7) at intervals, grooves (9) are formed in positions, corresponding to the protruding blocks (8), of the inner walls of the clamping grooves (6), and the protruding blocks (8) are in clamping fit with the grooves (9).