CN217485246U

CN217485246U - Oil-immersed transformer

Info

Publication number: CN217485246U
Application number: CN202221172990.3U
Authority: CN
Inventors: 郑坚勇; 方欣怡
Original assignee: Zhejiang Lingao Electrical Industrial Co ltd
Current assignee: Zhejiang Lingao Electrical Industrial Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-23
Anticipated expiration: 2032-05-13

Abstract

The utility model relates to a transformer technical field, concretely relates to oil-immersed transformer. An oil-filled transformer, comprising: the coil comprises a body, wherein the body is provided with at least one coil, and a high-voltage lead extends out of the coil; the clamping piece is arranged on the body; the support plate is fixedly connected with the clamping piece; and the lead clamp is fixedly connected with the support plate, a through channel is arranged in the lead clamp, and the high-voltage lead penetrates through the channel. The utility model provides an oil-immersed transformer's lead wire to the great lead wire length that causes of distance of folder become long, interfere oil tank design size's defect to an oil-immersed transformer is provided.

Description

Oil-immersed transformer

Technical Field

The utility model relates to a transformer technical field, concretely relates to oil-immersed transformer.

Background

Transformers are generally classified into dry transformers and wet transformers, and wet transformers have the advantages of low price and wide application range and become important equipment in power distribution systems of industrial and mining enterprises and civil buildings.

In the existing oil-immersed transformer, a lead plate is fixed on a clamping piece through a bolt, and a high-voltage lead penetrates through a through hole of the lead plate and then is bound by a re-cloth belt. Since the lead plate is fixed to the clip, the distance from the lead plate to the clip is designed according to the design manual (also called "creepage distance"), and the lead has thick insulation, the distance between the lead and the clip is large, the lead length is long, and the design size and the placement position of the fuel tank are interfered.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the great lead wire length that causes of the distance of the lead wire to the folder of the oil-immersed transformer among the prior art and lengthening, interferes oil tank design size's defect to an oil-immersed transformer is provided.

In order to solve the problem, the utility model provides an oil-immersed transformer, include:

the coil comprises a body, wherein the body is provided with at least one coil, and a high-voltage lead extends out of the coil;

the clamping piece is arranged on the body;

the support plate is fixedly connected with the clamping piece;

the lead clamp is fixedly connected with the support plate and provided with a through channel, and the high-voltage lead penetrates through the channel.

Optionally, the lead clamp includes a first lead clamp and a second lead clamp, the first lead clamp is provided with at least one groove arranged towards the second lead clamp, the second lead clamp is a flat plate, and the first lead clamp and the second lead clamp are attached to form the through channel.

Optionally, the number of grooves is 6.

Optionally, the number of coils is 3.

Optionally, the support plate is a pair provided on the clip.

Optionally, the clip is a U-shaped channel, and the support plate is an L-shaped plate.

Optionally, the lead clip is made of laminated wood or molded paperboard.

Optionally, the clamping device further comprises an oil tank, and the oil tank is arranged opposite to the clamping piece.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an oil-immersed transformer, include: the coil body is provided with at least one coil, and a high-voltage lead extends out of the coil; the clamping piece is arranged on the body; the support plate is fixedly connected with the clamping piece; and the lead clamp is fixedly connected with the support plate, a through channel is arranged on the lead clamp, and a high-voltage lead penetrates through the channel. The support plate is respectively fixed with the clamping piece and the lead wire clamp, the design idea of directly fixing the lead wire clamp and the clamping piece is abandoned, the distance (wire climbing distance) from the lead wire clamp to the clamping piece specified in a design manual is not required to be considered, the distance from the lead wire to the clamping piece is reduced by increasing the support plate so as to shorten the length of the high-voltage lead wire, materials are saved, the mounting position of the oil tank is changed so as to further reduce the design size of the oil tank, the purpose of saving materials is achieved, and the concept of green production is met.

2. The utility model provides an oil-immersed transformer, lead wire clamp include that first lead wire presss from both sides and the second lead wire presss from both sides, and first lead wire clamp is equipped with at least one recess that sets up towards the second lead wire clamp, and the second lead wire clamp is the flat board, and first lead wire clamp and second lead wire clamp laminating are in order to form the through passage. The first lead clamp and the second lead clamp are convenient to detach, and can firmly clamp the leads so as to arrange the leads in the grooves, and the lead arranging device has the advantage of being convenient to install.

3. The utility model provides an oil-immersed transformer, the quantity of recess is 6, the quantity of coil is 3 to design recess and coil according to reality.

4. The utility model provides an oil-immersed transformer, the extension board is for locating a pair of on the folder to make the lead wire press from both sides more firm with being connected of extension board.

5. The utility model provides an oil-immersed transformer, folder are "U" type channel-section steel, extension board for "L" shaped plate, "L" shaped plate design makes the horizontal plane of extension board fixed with the channel-section steel, and the perpendicular is fixed with the lead clamp, and the distance that channel-section steel and lead clamp are dwindled to the at utmost to the extension board is the intermediary and need not to consider the lead clamp of regulation in the design manual to the distance (climbing line distance) of folder, thereby shorten the length of high-pressure lead wire with save material.

6. The utility model provides an oil-immersed transformer, the material that the lead wire pressed from both sides is laminated wood or shaping cardboard, and the lead wire presss from both sides and plays insulating effect.

7. The utility model provides an oil-immersed transformer still includes the oil tank, and the oil tank sets up with the folder relatively, is used for placing fluid in the oil tank, has reduced the distance of folder with the mailbox wall simultaneously to redesign the oil tank size in order to reduce overall dimension according to new structure, be convenient for install, play the material-saving purpose.

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 front view of an oil-immersed transformer according to an embodiment of the present invention;

fig. 2 is a top view of an oil-immersed transformer according to an embodiment of the present invention;

fig. 3 is a left side view of an oil-immersed transformer according to an embodiment of the present invention;

fig. 4 is a top view of a first lead clamp of an oil-immersed transformer according to an embodiment of the present invention.

Description of reference numerals: 1. a coil; 2. a body; 3. a high voltage lead; 4. a clamp; 5. a support plate; 6. a first lead clamp; 7. a second lead clamp; 8. an oil tank; 9. and (4) a groove.

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 should 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 as a specific case by those skilled in the art.

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

An embodiment of the oil-filled transformer shown in fig. 1-4 includes: the body 2, body 2 are equipped with three coil 1, and each coil 1 all extends and stretches out there is high-voltage lead wire 3, still is fixed with folder 4 on the body 2.

As shown in fig. 1, 2, 3 and 4, in order to reduce the distance between the clip 4 and the lead wire clip, two "L" shaped support plates 5 are arranged between the clip 4 and the lead wire clip, the horizontal surfaces of the support plates 5 are fixedly connected with the clip 4 through bolts, and the vertical surfaces are fixedly connected with the lead wire clip through bolts. Specifically, the clip 4 is a U-shaped channel. For the convenience of installation and disassembly, the lead clamp comprises a first lead clamp 6 and a second lead clamp 7, wherein the first lead clamp 6 is provided with 6 grooves 9, the second lead clamp 7 is a flat plate, when the lead clamp is assembled, the first lead clamp 6 and the second lead clamp 7 are attached to form a through channel allowing the high-voltage lead 3 to pass through, and the first lead clamp 6 and the second lead clamp 7 are fixed by a screw and a nut. Specifically, the first lead clip 6 and the second lead clip 7 are made of laminated wood. In order to contain oil, the oil tank structure further comprises an oil tank 8 arranged opposite to the clamping piece 4, so that a designer can redesign the size and the installation position of the oil tank 8 according to the reduced distance between the clamping piece 4 and the oil tank 8, and the material saving effect is achieved.

The utility model provides an oil-immersed transformer need not to consider distance (creepage distance) when folder 4 and lead wire clamp direct mount in design and assembly, and the lead wire clamp centre gripping lead wire is firm, the dismouting is simple, and redesign and 8 sizes of oil tank after the installation reduce, have save material's advantage, accord with the theory of green manufacturing.

As an alternative embodiment, the number of coils 1 may also be 1, 2, 4 or even more.

As an alternative embodiment, the number of struts 5 can also be 1, 3, 4 or even more.

As an alternative embodiment, the number of grooves 9 may also be 1, 2, 3 or even more.

Alternatively, the first lead clip 6 and the second lead clip 7 may be made of an insulating material such as a molded paperboard.

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 can be made without departing from the scope of the invention.

Claims

1. An oil-filled transformer, comprising:

the coil comprises a body (2), wherein the body (2) is provided with at least one coil (1), and a high-voltage lead (3) extends from the coil (1);

the clamp (4) is arranged on the body (2);

the support plate (5) is fixedly connected with the clamping piece (4);

and the lead clamp is fixedly connected with the support plate (5), the lead clamp is provided with a through channel, and the high-voltage lead (3) penetrates through the channel.

2. Oil filled transformer according to claim 1, characterized in that the lead clamp comprises a first lead clamp (6) and a second lead clamp (7), the first lead clamp (6) being provided with at least one groove (9) arranged towards the second lead clamp (7), the second lead clamp (7) being a flat plate, the first lead clamp (6) and the second lead clamp (7) fitting to form the through channel.

3. Oil filled transformer according to claim 2, characterized in that the number of grooves (9) is 6.

4. Oil filled transformer according to claim 1, characterized in that the number of coils (1) is 3.

5. Oil filled transformer according to claim 1, characterized in that the support plates (5) are a pair provided on the clamp (4).

6. Oil filled transformer according to any of claims 1-5, characterized in that the clamps (4) are "U" shaped channel steels and the support plates (5) are "L" shaped plates.

7. The oil-filled transformer of claim 6, wherein the lead clip is made of laminated wood or formed paperboard.

8. Oil filled transformer according to claim 7, characterized by further comprising an oil tank (8), the oil tank (8) being arranged opposite the clamp (4).