CN111524688B - Transformer heat dissipation oil duct - Google Patents
Transformer heat dissipation oil duct Download PDFInfo
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- CN111524688B CN111524688B CN202010349393.2A CN202010349393A CN111524688B CN 111524688 B CN111524688 B CN 111524688B CN 202010349393 A CN202010349393 A CN 202010349393A CN 111524688 B CN111524688 B CN 111524688B
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- square
- insulating paper
- bottom plate
- square bottom
- paper
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 34
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000000123 paper Substances 0.000 description 60
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The embodiment of the invention discloses a transformer heat dissipation oil duct, which comprises insulating paper and a plurality of supporting strips, wherein the supporting strips are bonded to one side of the insulating paper at equal intervals; the supporting strips comprise a square bottom plate which is glued to one side of the insulating paper and a plurality of elastic strips which are fixedly connected with the side wall of the square bottom plate at equal intervals and are arranged between the two opposite side walls of the two adjacent square bottom plates, the side, away from the insulating paper, of the square bottom plate is fixedly connected with the square strip, the side, away from the square bottom plate, of the square strip is fixedly connected with the square base plate, and two identical oil grooves are formed between the square bottom plate, the side, opposite to the square base plate and the square strip.
Description
Technical Field
The embodiment of the invention relates to the technical field of transformers, in particular to a transformer heat dissipation oil duct.
Background
A transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components comprise a primary coil, a secondary coil and an iron core. The oil immersed self-cooling transformer is one type of novel high-performance transformer, has more reasonable structure and more excellent performance, and is only used for power grid transformation of urban and rural and industrial and mining enterprises and transformers for combined transformers and prefabricated substations.
For the transformer, controlling the temperature rise is an important task, which may affect the service life of the transformer, the heat dissipation oil duct of the existing transformer generally employs a method of pasting 6mm wide by 4mm thick rectangular paper board stays on 0.25mm or 0.13mm thick cable paper with a fixed interval, the cable paper is in the formation process of the oil duct, if the interval of the stays is too large, the coil of the transformer cannot be effectively supported when in short circuit, the short circuit resistance of the transformer is affected, and the cable paper can be easily wrinkled, the oil duct is blocked, if the interval of the stays is small, the stays can occupy more heat dissipation area, but the cable paper wrinkles can be prevented, but the existing transformer heat dissipation oil duct cannot increase the interval of the stays to promote heat dissipation, and meanwhile, the cable paper wrinkles are prevented, therefore, a transformer heat dissipation oil duct needs to be designed.
Disclosure of Invention
Therefore, the embodiment of the invention provides a transformer heat dissipation oil duct, which solves the problem that the existing transformer heat dissipation oil duct can cause the oil duct to be blocked because cable paper is wrinkled while the heat dissipation area is increased.
In order to achieve the above object, an embodiment of the present invention provides the following:
a transformer heat dissipation oil duct comprises insulating paper and a plurality of supporting strips which are glued to one side of the insulating paper at equal intervals;
the stay includes the square bottom plate of a plurality of who splices with insulating paper one side, adjacent two equidistant fixedly connected with a plurality of elasticity strip between the square bottom plate, the square bottom plate is kept away from the square strip of one side fixedly connected with of insulating paper, the square backing plate of one side fixedly connected with of square bottom plate is kept away from to square strip, form two the same oil grooves between two lateral walls that square bottom plate is relative with square backing plate and the square strip.
As a preferable scheme of the invention, the length, the width and the thickness of the square bottom plate and the square base plate are the same, and the square bottom plate and the square base plate are arranged in parallel and at the same center line.
As a preferable aspect of the present invention, the length of the square bar is the same as the length of the square base plate, and the thickness of the square bar is less than one third of the width of the square base plate.
As a preferable scheme of the invention, the edge of one side of the square bottom plate, which is far away from the square base plate, is arc-shaped, and the arc-shaped surface of the square bottom plate is far away from the insulating paper.
As a preferable scheme of the invention, the elastic modulus of the elastic strips is less than 0.2Mpa, and one side of the elastic strips close to the insulating paper is not in contact with the insulating paper.
As a preferable scheme of the invention, the elastic strips are all semi-cylinders, and the arc side of each elastic strip is far away from the insulating paper.
As a preferable aspect of the present invention, the square bar is obliquely disposed between the corresponding square base plate and the square backing plate.
As a preferable scheme of the invention, heat conducting paper is glued to one side of each elastic strip, which is far away from the insulating paper, between two adjacent square bottom plates, the length of the heat conducting paper is equal to the farthest distance between the two elastic strips, and the part of the heat conducting paper, which is located between the two adjacent elastic strips, is glued to the insulating paper.
As a preferable scheme of the present invention, both ends of the square bottom plate, the square strip and the square backing plate are arc-shaped.
In a preferred embodiment of the present invention, a plane of a side of the sticker, which is away from the insulating paper, and a plane of a side of the square bottom plate, which is away from the insulating paper, are located on the same plane.
The embodiment of the invention has the following advantages:
according to the invention, the elastic strip is used for supporting the insulating paper, so that the insulating paper cannot wrinkle to block the oil duct when the distance between the two supporting strips is larger, the phenomenon that the temperature of the transformer iron core rises to influence the normal working state due to the blocking of the heat dissipation oil duct is avoided, the volume of oil passing through the oil duct at the same time is increased under the same distance between the supporting strips, and the heat dissipation effect is enhanced.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a transformer cooling oil passage according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a stay in the embodiment of the present invention.
In the figure:
1-insulating paper; 2-a stay; 3-heat conducting paper;
201-square base plate; 202-square bar; 203-square backing plate; 204-oil groove; 205-elastic strip.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, the invention provides a transformer heat dissipation oil channel, which comprises insulating paper 1 and a plurality of supporting bars 2 which are glued on one side of the insulating paper 1 at equal intervals;
When the winding device is used, the insulating paper 1 and the supporting strips 2 are directly wound on the winding hard paper cylinder, and the adjacent two supporting strips 2 form a heat dissipation oil channel.
In the present embodiment, the distance between two supporting bars 2 may be set to be larger than that of a general heat dissipation oil duct, and in the present invention, a plurality of elastic bars 205 are disposed between two adjacent supporting bars 2, when the insulating paper 1 and the supporting bars 2 are wound, the elastic bars 205 deform to support the insulating paper 1, so as to prevent the heat dissipation oil duct from being blocked due to wrinkles generated by the too large distance between two adjacent supporting bars 2 of the insulating paper 1.
Two adjacent stays 2, because square bottom plate 201, the setting between square strip 202 and the square backing plate 203, make square bottom plate 201, square strip 202 and square backing plate 203 form two the same oil grooves 204, increase the volume that transformer oil passes through the heat dissipation oil duct in the same time when two stays 2 enlarge the interval, increase the inside volume size of whole heat dissipation oil duct promptly, can take away more heats through more transformer oil in the same time, the cooling effect of heat dissipation oil duct has been promoted.
When enlarging the inside volume of heat dissipation oil duct through oil groove 204, square bottom plate 201 plays the effect of a support to insulating paper, avoids it to take place the fold, even the interval between two stays 2 is the same with current heat dissipation oil duct interval, also can improve the radiating effect of temperature rise when avoiding insulating paper 1 fold through the setting of oil groove 204.
When the transformer oil passes through the formed heat dissipation oil duct, due to the arrangement of the plurality of elastic strips 205, a plurality of regular bulges are arranged in the heat dissipation oil duct, the movement mode that the existing heat dissipation oil duct is directly led in and directly led out is changed, when the transformer oil moves in the heat dissipation oil duct, the transformer oil can continuously encounter the elastic strips 205 and collide with the elastic strips to change the state, so that the heat exchange of the transformer oil in the heat dissipation oil duct is more, more heat can be brought, and a better cooling effect is obtained.
The length, the width and the thickness of the square bottom plate 201 and the square backing plate 203 are the same, and the square bottom plate 201 and the square backing plate 203 are arranged in parallel and at the same center line.
The square bottom plate 201, the square bars 202 and the square backing plate 203 form two identical oil grooves 205, which are used for enlarging the size of the internal volume of the heat dissipation oil channel and improving the cooling effect of the heat dissipation oil channel.
The length of the square bar 202 is the same as the length of the square base plate 201, and the thickness of the square bar 202 is less than one third of the width of the square base plate 201.
The width of square strip 202 is reduced as far as possible when guaranteeing stay 2 stable in structure, promotes the volume of oil groove 204 for promote the radiating effect.
The edge of one side of the square bottom plate 201 away from the square backing plate 203 is arc-shaped, and the arc-shaped surface of the square bottom plate 201 is away from the insulating paper 1.
The curved edge can avoid insulating paper 1 to avoid being produced the gap of cutting apart by the edge damage of square bottom plate 201 when the winding, influences the normal use of whole structure.
The elastic modulus of the elastic strips 205 is less than 0.2Mpa, and one side of each of the elastic strips 205 close to the insulating paper 1 is not in contact with the insulating paper 1.
When in use, the elastic strip 205 needs to have a smaller elastic modulus to prevent the insulating paper 1 from being damaged by a larger elastic force generated when the insulating paper 1 is subjected to bending deformation, but the elastic strip 205 needs to have a certain supporting force to support the insulating paper 1 when the insulating paper 1 is subjected to elastic deformation.
Preferably, the elastic modulus of the elastic strip 205 may be smaller, which is only given as a limitation in this embodiment.
The elastic strip 205 is far away from the insulating paper 1 when not deformed, so as to avoid the insulating paper 1 from being damaged due to the larger elastic force when the elastic strip 205 is deformed.
The elastic strips 205 are all semicylinders, and one side of the arc of the elastic strip 205 is far away from the insulating paper 1.
So that the transformer oil has a smoother transition guide when colliding with the elastic strip 205, and the action of the collision force is reduced.
The square bars 202 are obliquely arranged between the corresponding square bottom plate 201 and the square backing plate 203.
The inclined arrangement of the square bars 202 enables the formed liquid level of the oil groove 204 to be inclined, the moving distance of the transformer oil in the heat dissipation oil duct is prolonged, and more heat can be taken away by the transformer oil.
One side of each elastic strip 205 between two adjacent square bottom plates 201, which is far away from the insulating paper 1, is glued with the heat-conducting paper 3, the length of the heat-conducting paper 3 is equal to the farthest distance between the two elastic strips 205, and the part of the heat-conducting paper 3 between the two adjacent elastic strips 205 is glued with the insulating paper 1.
The heat conducting paper 3 directly contacts with the insulating paper 1, and heat can be transmitted to transformer oil through the heat conducting paper 3 to be absorbed, so that the heat absorption area of the transformer oil is increased, and the heat absorption effect is enhanced.
The two ends of the square bottom plate 201, the square strip 202 and the square backing plate 203 are all arc-shaped.
The arc-shaped end face can reduce the impact of the transformer oil on the two ends of the square bottom plate 201, the square strip 202 and the square base plate 203 during movement, and the stability of the formed heat dissipation oil channel is improved.
The plane of the side of the heat-conducting paper 3 far away from the insulating paper 1 and the plane of the side of the square bottom plate 201 far away from the insulating paper 1 are located on the same plane.
The heat conducting paper 3 is glued to one side of the elastic strip 205 and is located on the same plane, so that the elastic strip 205 is far away from the insulating paper 1, and the movement of the transformer oil in the oil groove 204 is not influenced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A transformer heat dissipation oil channel is characterized by comprising insulating paper (1) and a plurality of supporting strips (2) which are glued to one side of the insulating paper (1) at equal intervals;
the supporting strip (2) comprises a plurality of square bottom plates (201) which are connected with one side of the insulating paper (1) in an adhesive mode, a plurality of elastic strips (205) are fixedly connected between every two adjacent square bottom plates (201) at equal intervals, one side, far away from the insulating paper (1), of each square bottom plate (201) is fixedly connected with a square strip (202), one side, far away from the square bottom plate (201), of each square strip (202) is fixedly connected with a square base plate (203), and two identical oil grooves (204) are formed between two side walls, opposite to the square base plate (203), of each square bottom plate (201) and the corresponding square strip (202);
the elastic modulus of the elastic strips (205) is less than 0.2Mpa, and one side of each elastic strip (205) close to the insulating paper (1) is not in contact with the insulating paper (1).
2. The transformer cooling oil passage according to claim 1, wherein the length, the width and the thickness of the square bottom plate (201) and the square backing plate (203) are the same, and the square bottom plate (201) and the square backing plate (203) are arranged in parallel and at the same center line.
3. The transformer cooling oil passage according to claim 2, wherein the length of the square bar (202) is the same as the length of the square bottom plate (201), and the thickness of the square bar (202) is less than one third of the width of the square bottom plate (201).
4. The transformer cooling oil passage according to claim 3, wherein the edge of one side of the square bottom plate (201) far away from the square pad (203) is arc-shaped, and the arc-shaped surface of the square bottom plate (201) is far away from the insulating paper (1).
5. The transformer cooling oil passage according to claim 1, wherein a plurality of the elastic strips (205) are semi-cylinders, and the arc side of the elastic strips (205) is far away from the insulating paper (1).
6. The transformer cooling gallery according to claim 4, wherein the square bars (202) are obliquely arranged between the corresponding square base plate (201) and the corresponding square shim plate (203).
7. The transformer cooling oil duct according to claim 5, characterized in that the sides of the elastic strips (205) between two adjacent square bottom plates (201) far away from the insulating paper (1) are jointly glued with the heat conducting paper (3), the length of the heat conducting paper (3) is equal to the farthest distance between two elastic strips (205), and the part of the heat conducting paper (3) between two adjacent elastic strips (205) is glued with the insulating paper (1).
8. The transformer cooling oil passage according to claim 6, wherein both ends of the square bottom plate (201), the square bar (202) and the square backing plate (203) are arc-shaped.
9. The transformer cooling oil passage according to claim 7, wherein the plane of the side of the heat conducting paper (3) far away from the insulating paper (1) and the plane of the side of the square bottom plate (201) far away from the insulating paper (1) are located on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349393.2A CN111524688B (en) | 2020-04-28 | 2020-04-28 | Transformer heat dissipation oil duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349393.2A CN111524688B (en) | 2020-04-28 | 2020-04-28 | Transformer heat dissipation oil duct |
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| Publication Number | Publication Date |
|---|---|
| CN111524688A CN111524688A (en) | 2020-08-11 |
| CN111524688B true CN111524688B (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010349393.2A Active CN111524688B (en) | 2020-04-28 | 2020-04-28 | Transformer heat dissipation oil duct |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA41112C2 (en) * | 2001-02-13 | 2004-07-15 | Ukrainian Scientific Research Project Design & Technological Inst Transformer Making Ind Ojsc | Device for the axial compression of transformer windings |
| CN202352447U (en) * | 2011-12-20 | 2012-07-25 | 重庆重变电器有限责任公司 | Coil axial oil way structure |
| CN202632984U (en) * | 2012-06-01 | 2012-12-26 | 宁波华通电器集团股份有限公司 | Jump-curtain type oil channel |
| CN204695944U (en) * | 2015-06-05 | 2015-10-07 | 溧阳市金思华电器有限公司 | A kind of modified model oil-filled transformer laminar winding oil duct stay curtain |
| CN205354816U (en) * | 2016-02-29 | 2016-06-29 | 国网山东省电力公司菏泽供电公司 | Oil duct of transformer |
| CN207868020U (en) * | 2018-01-17 | 2018-09-14 | 重庆优博电气设备有限公司 | A kind of oil-immersed transformer insulating oil duct |
| CN208478105U (en) * | 2018-08-07 | 2019-02-05 | 张家港博美特绝缘材料有限公司 | A kind of oil-immersed transformer laminar winding oil duct stay curtain convenient for assembling |
-
2020
- 2020-04-28 CN CN202010349393.2A patent/CN111524688B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA41112C2 (en) * | 2001-02-13 | 2004-07-15 | Ukrainian Scientific Research Project Design & Technological Inst Transformer Making Ind Ojsc | Device for the axial compression of transformer windings |
| CN202352447U (en) * | 2011-12-20 | 2012-07-25 | 重庆重变电器有限责任公司 | Coil axial oil way structure |
| CN202632984U (en) * | 2012-06-01 | 2012-12-26 | 宁波华通电器集团股份有限公司 | Jump-curtain type oil channel |
| CN204695944U (en) * | 2015-06-05 | 2015-10-07 | 溧阳市金思华电器有限公司 | A kind of modified model oil-filled transformer laminar winding oil duct stay curtain |
| CN205354816U (en) * | 2016-02-29 | 2016-06-29 | 国网山东省电力公司菏泽供电公司 | Oil duct of transformer |
| CN207868020U (en) * | 2018-01-17 | 2018-09-14 | 重庆优博电气设备有限公司 | A kind of oil-immersed transformer insulating oil duct |
| CN208478105U (en) * | 2018-08-07 | 2019-02-05 | 张家港博美特绝缘材料有限公司 | A kind of oil-immersed transformer laminar winding oil duct stay curtain convenient for assembling |
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| CN111524688A (en) | 2020-08-11 |
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