CN220962995U - Integrated low-surface heat radiation water-cooled transformer - Google Patents
Integrated low-surface heat radiation water-cooled transformer Download PDFInfo
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- CN220962995U CN220962995U CN202322752150.5U CN202322752150U CN220962995U CN 220962995 U CN220962995 U CN 220962995U CN 202322752150 U CN202322752150 U CN 202322752150U CN 220962995 U CN220962995 U CN 220962995U
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- 230000005855 radiation Effects 0.000 title claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 152
- 238000004804 winding Methods 0.000 claims abstract description 129
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005266 casting Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides an integrated low-surface heat radiation water-cooled transformer, which comprises an iron core assembly, windings and a water-cooled assembly, wherein the iron core assembly comprises iron core columns, a group of windings are wrapped on the outer side of each iron core column, and each group of windings comprises an inner winding and an outer winding wrapped on the outer side of the inner winding; the water cooling component is arranged in the interval between the inner winding and the outer winding and/or between the inner winding and/or the multi-turn coil of the outer winding, and surrounds or semi-surrounds the inner winding or the outer winding part on the inner side of the water cooling component, and the plurality of windings and the water cooling component are cast into a casting body through heat conduction casting materials; the heat generated by the winding is sequentially transferred to the special-shaped water cooling plate and the water cooling pipe and finally circulated through the water cooling pipe; the casting body formed by the heat conducting casting material can increase the heat transfer in the winding, so that the heat of the winding is efficiently transferred to the special-shaped water cooling plate, the radiating surface of the winding is reduced, the temperature rise of the winding is reduced, and the heat radiation of the outer surface of the transformer to the space is reduced.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to an integrated low-surface heat radiation water-cooled transformer.
Background
In the running process of the transformer, heat is generated by the loss of windings, in order to ensure that the temperature rise of the product does not exceed the grade requirement of insulating materials, the transformer needs to radiate the heat generated by the loss of the product, in order to reduce the volume of the transformer, a water cooling heat radiating structure is usually adopted between the inner winding and the outer winding, and a conventional water cooling heat radiating structure is shown in fig. 2 and 3 and comprises a first water cooling component 3, wherein the first water cooling component 3 comprises a water cooling plate 31 and a first water cooling pipe 32 arranged in the water cooling plate 31, a first water cooling pipe end 33 of the first water cooling pipe 32 extends out of the water cooling plate 31, and the first water cooling pipes 32 between two adjacent water cooling plates 31 are communicated through a first communication pipe 34; the water cooling plates 31 are arranged in the short side directions of the two sides of the winding because the winding parts blocked by the upper iron yoke and the lower iron yoke are not convenient for placing the water cooling plates 31; because the long side direction of the winding is not provided with the water cooling plate, in order to enhance the heat radiation capability of the winding, the long side direction of the winding is additionally provided with the heat radiation air passage through which air flows, thereby being beneficial to heat radiation.
According to the water cooling structure, the water cooling plates are arranged in the intervals of the inner winding and the outer winding, and the air passage is increased, so that the problem of heat dissipation of the windings is solved to a certain extent, the more the air passage is, the stronger the heat dissipation capacity is, but the heat dissipation effect of the air passage is poor compared with that of the water cooling plates, meanwhile, when the transformer is placed in a relatively airtight space, the temperature of the transformer can only be reduced, but the total loss generated by the transformer can increase the space temperature of the airtight environment, so that the temperature of the airtight space is increased, and the normal operation of surrounding equipment is influenced; therefore, a transformer having a strong heat dissipation capability to reduce the temperature of the transformer itself and to prevent the temperature of the space in the closed environment from rising as much as possible is needed to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to solve the problems in the background art and provides an integrated low-surface heat radiation water-cooled transformer; the principle is that through reducing the air flue of the ventilation in the transformer winding as far as possible, the radiating surface possibly radiating to the surrounding is reduced, the temperature rise of the transformer is reduced, and simultaneously, the heat generated by the loss of the transformer winding is reduced and dissipated into the airtight space where the transformer is located.
The technical scheme of the utility model is as follows: the integrated low-surface heat radiation water-cooling transformer comprises an iron core assembly, windings and a water-cooling assembly, wherein the iron core assembly comprises at least two vertical iron core columns, a group of windings are wrapped on the outer side of each iron core column, and each group of windings comprises an inner winding and an outer winding wrapped on the outer side of the inner winding;
The water cooling assembly is arranged in the interval between the inner winding and the outer winding and/or between the inner winding and/or the multi-turn coil of the outer winding, and surrounds or semi-surrounds the inner winding or the outer winding on the inner side of the water cooling assembly, and a plurality of windings and the water cooling assembly are cast into an integral casting body through heat conduction casting materials.
Further, the iron core assembly further comprises an upper iron yoke and a lower iron yoke which are respectively and fixedly arranged at the top end and the bottom end of at least two iron core columns.
Further, the water cooling assembly comprises a special-shaped water cooling plate and water cooling pipes, at least two special-shaped water cooling plates are assembled and then surround an inner winding or an outer winding part on the inner side of the special-shaped water cooling plate, and the water cooling pipes are distributed in the special-shaped water cooling plate according to a preset path; the two water-cooling pipe ends of the water-cooling pipe extend out of the top end or the bottom end of the special-shaped water-cooling plate, the water-cooling pipe ends between two adjacent water-cooling pipes are communicated through a communication pipe, and the water-cooling pipe ends are detachably connected with the communication pipe through a connecting structure.
Preferably, the two water-cooling pipe ends of the water-cooling pipe extend out of the top end or the bottom end of the special-shaped water-cooling plate from the short side directions of the two sides of the winding.
Further, the preset path of the water cooling pipe comprises S-shaped reciprocating arrangement along the length or width direction of the special-shaped water cooling plate.
Preferably, the special-shaped water cooling plates are in a '匚' shape, and the two '匚' shaped special-shaped water cooling plates can be assembled into a complete ring shape to encircle the inner winding or the outer winding part on the inner side of the special-shaped water cooling plates.
Preferably, the connection structure is a threaded connection or a flange connection or a clamp connection.
Further, a heat insulation layer is wrapped outside the casting body.
According to the transformer, the assembled special-shaped water-cooled plates are arranged in the interval between the inner winding and the outer winding, so that heat generated by the windings is sequentially transferred to the special-shaped water-cooled plates and the water-cooled pipes and finally circulated through water-cooling mediums in the water-cooled pipes, and the special-shaped water-cooled plates can enhance the uniformity of heat conduction in the windings; the heat-conducting castable is used for casting the plurality of windings and the water-cooling assembly into the integral castable, so that the heat transfer inside the windings can be increased, the heat of the windings is efficiently transferred to the special-shaped water-cooling plate, the radiating surface of the windings is reduced, the temperature rise of the windings is reduced, the low-heat radiation of the surface of the transformer is ensured to meet the requirement, and the heat radiation of the outer surface of the transformer to the space is reduced.
Drawings
Fig. 1 is a schematic plan view of a conventional transformer.
Fig. 2 is a schematic sectional structure of a conventional transformer and a schematic design position of a water cooling plate 31.
Fig. 3 is a schematic plan view of a first water cooling module 3 of a conventional transformer.
Fig. 4 is a schematic cross-sectional structure of the transformer and a schematic design position of the profiled water cooling plate 41 according to the utility model.
Fig. 5 is a schematic plan view of the water cooling module 4 of the present utility model.
Fig. 6 is a plan view of the profiled water-cooled plate 41 in the present utility model.
Fig. 7 is a schematic plan view of a transformer according to the present utility model.
Fig. 8 is a schematic view of an arrangement of the water cooling module 4 according to the present utility model.
The reference numerals are described in the following table:
| number of marks | Tag name | Number of marks | Tag name |
| 1 | Iron core assembly 1 | 33 | First water-cooled pipe end 33 |
| 11 | Core limb 11 | 34 | First communicating pipe 34 |
| 12 | Upper yoke 12 | 4 | Water cooling assembly 4 |
| 13 | Lower yoke 13 | 41 | Special-shaped water cooling plate 41 |
| 2 | Winding 2 | 42 | Water cooling pipe 42 |
| 21 | Inner winding 21 | 43 | Water-cooled pipe end 43 |
| 22 | Outer winding 22 | 44 | Communication pipe 44 |
| 3 | First water cooling assembly 3 | 5 | Heat conduction castable 5 |
| 31 | Water cooling plate 31 | 6 | Insulating layer 6 |
| 32 | First water-cooled tube 32 | 7 | Casting 7 |
Detailed Description
For a clearer description of embodiments of the utility model or of the solutions of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained by those skilled in the art without inventive effort, the utility model being further described below in connection with the accompanying drawings:
The water cooling plate is fully constructed in the interval between the inner winding and the outer winding, compared with the existing water cooling plate, the air passage for air circulation in the transformer winding can be reduced, the heat generated by the loss of the transformer winding is circularly removed through the water cooling pipe constructed in the water cooling plate, the temperature rise of the transformer is reduced, the whole structure comprising the winding and the water cooling assembly is integrally poured and filled by utilizing the heat conducting castable, the radiating surface which possibly radiates heat to the periphery is reduced, meanwhile, the heat generated by the loss of the transformer winding is reduced to be radiated into the airtight space where the transformer is located, and then a layer of heat insulation material is wrapped outside the castable, so that the heat radiation of the outer surface to the space is further reduced; specific examples are as follows:
Referring to fig. 1 and 4 of the specification, an integrated low-surface heat radiation water-cooling transformer comprises an iron core assembly 1, windings 2 and a water-cooling assembly 4, wherein the iron core assembly 1 comprises three vertical iron core columns 11, an upper iron yoke 12 and a lower iron yoke 13 which are respectively and fixedly arranged at the top end and the bottom end of the three iron core columns 11, a group of windings 2 are wrapped on the outer side of each iron core column 11, each group of windings 2 comprises an inner winding 21 and an outer winding 22 wrapped on the outer side of the inner winding 21, the inner winding 21 and the outer winding 22 are wound in a concentric structure, a certain interval is reserved between the inner winding 21 and the outer winding 22, and a certain interval is reserved between multi-turn coils of the inner winding 21 and the outer winding 22.
In one embodiment, referring to fig. 4 and 5, the water cooling assembly 4 is disposed in the space between the inner winding 21 and the outer winding 22, and the water cooling assembly 4 surrounds or semi-surrounds the inner winding 21; specifically, the water cooling assembly 4 includes a special-shaped water cooling plate 41 and a water cooling pipe 42, and the two special-shaped water cooling plates 41 are assembled and then surround the inner winding 21.
In another embodiment, referring to fig. 8, the water cooling assembly 4 may also be disposed between the multi-turn coils of the inner winding 21 and/or the outer winding 22, that is, the water cooling assembly 4 is wrapped between the inner winding 21 and/or the outer winding 22, specifically, the water cooling assembly 4 includes a special-shaped water cooling plate 41 and a water cooling tube 42, and two special-shaped water cooling plates 41 are assembled and then surround the inner winding 21 or the outer winding 22 on the inner side thereof; likewise, the water cooling assembly 4 may be disposed in the interval between the inner winding 21 and the outer winding 22, or the insulation assembly may be disposed in the interval between the inner winding 21 and the outer winding 22, and the insulation assembly may be a grid plate, an air passage rod or a composite insulation.
The water cooling pipes 42 are distributed in the special-shaped water cooling plate 41 according to a preset path, two water cooling pipe ends 43 of the water cooling pipes 42 extend out of the top end or the bottom end of the special-shaped water cooling plate 41, the water cooling pipe ends 43 between two adjacent water cooling pipes 42 are communicated through a communication pipe 44, and the water cooling pipe ends 43 are detachably connected with the communication pipe 44 through a connecting structure;
The plane structures at two sides of the special-shaped water cooling plate 41 can be tightly attached to the side surfaces of the inner winding and the outer winding, so that gaps between the special-shaped water cooling plate and the inner winding and the outer winding are eliminated, and the uniformity of heat conduction in the winding can be enhanced by the plane structure of the water cooling plate; the heat generated by the windings is sequentially transferred to the special-shaped water cooling plates 41 and the water cooling pipes 42 and is taken away by a cooling medium (such as water) in the water cooling pipes 42, so that the temperature rise of the windings is reduced, and compared with the conventional water cooling mode of a water cooling plate type design form of two short sides of the windings, the heat dissipation cooling effect is better.
In a specific embodiment, the preset path of the water cooling pipes 42 is arranged in an S-shape and reciprocally along the length or width direction of the profiled water cooling plate 41, specifically, the S-shape and reciprocally along the length direction of the profiled water cooling plate 41 is similar to the arrangement of the first water cooling pipes 32 in fig. 3, and the S-shape and reciprocally along the width direction of the profiled water cooling plate 41 are not shown in the drawings, but can be suggested by the above technical teaching without any inventive effort by those skilled in the art, and therefore will not be repeated.
Referring to fig. 4 and 6, the special-shaped water-cooling plates 41 are 匚 shaped, the two special-shaped water-cooling plates 41 in 匚 shape can be assembled into a complete ring shape to surround the inner winding (21) or the outer winding (22) part of the inner side of the special-shaped water-cooling plates, meanwhile, two water-cooling pipe ends 43 of the water-cooling pipe 42 extend out of the top end or the bottom end of the special-shaped water-cooling plates 41 from the short side directions of the two sides of the winding 2, namely, the water-cooling pipe ends 43 are arranged on the special-shaped water-cooling plates 41 and are positioned at the short side positions of the two sides of the winding, so that the installation and the position of the water-cooling pipe ends 43 and the communicating pipe 44 are prevented from being influenced by iron yokes; the heat dissipation capacity of the special-shaped water cooling plates 41 can reach more than 2 times of that of the plane water cooling plates on two sides, the uniformity of heat conduction in the winding can be enhanced, and one or more groups of special-shaped water cooling plates 41 can be arranged according to the heat dissipation requirement.
In one embodiment, the water-cooled pipe end 43 and the communication pipe 44 are detachably connected through one of a threaded connection, a flange connection or a clamp connection, so that the step-by-step installation in the transformer production process is facilitated.
In this embodiment, the water cooling tube 42 is a copper tube or an aluminum tube, and the special-shaped water cooling plate 41 is an aluminum plate or a copper plate; copper and aluminum materials have good corrosion resistance, are not easy to oxidize or corrode, can keep good heat conduction performance for a long time, and have high heat transfer efficiency.
In this embodiment, referring to fig. 4 and 7, three windings 2 and a water cooling component 4 are cast into an integral casting body 7 through a heat conducting casting material 5, the heat conducting casting material 5 adopts heat conducting insulating casting resin, and a region filled by casting of the heat conducting insulating casting resin comprises a space region inside the windings, an inter-phase region of the three windings 2, a gap between an iron core column 11 and the windings 2, and the like;
After the heat conduction castable 5 is poured and filled, the three-phase winding 2 and the water cooling assembly 4 are solidified into an integral pouring body 7, and then a layer of heat insulation layer 6 is wrapped outside the pouring body 7, so that heat radiation from the outer surface to the space is further reduced; in particular, the insulating layer may be mineral wool felt, glass fiber felt, polyester fiber felt, or the like.
It is apparent that modifications and/or additions of parts can be made to the above-described integrated low-surface heat radiation water-cooled transformer and corresponding method without departing from the field and scope of the utility model.
It is also clear that although the present utility model has been described in detail with respect to such an integrated low-surface heat radiation water-cooled transformer, a person skilled in the art shall certainly be able to achieve many other equivalent forms of integrated low-surface heat radiation water-cooled transformer and corresponding method, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
Claims (10)
1. The utility model provides an integral type low surface heat radiation water-cooling transformer which characterized in that: the novel water-cooling type electric iron comprises an iron core assembly (1), windings (2) and a water-cooling assembly (4), wherein the iron core assembly (1) comprises at least two vertical iron core columns (11), a group of windings (2) are wrapped on the outer side of each iron core column (11), and each group of windings (2) comprises an inner winding (21) and an outer winding (22) wrapped on the outer side of the inner winding (21);
The water cooling assembly (4) is arranged in the interval between the inner winding (21) and the outer winding (22) and/or between the inner winding (21) and/or the multi-turn coil of the outer winding (22), the water cooling assembly (4) surrounds or semi-surrounds the inner winding (21) or the outer winding (22) on the inner side of the water cooling assembly, and a plurality of windings (2) and the water cooling assembly (4) are cast into an integral casting body (7) through the heat conduction casting material (5).
2. The integrated low-surface heat radiation water-cooled transformer of claim 1, wherein: the water cooling assembly (4) comprises special-shaped water cooling plates (41) and water cooling pipes (42), at least two special-shaped water cooling plates (41) are assembled and then surround an inner winding (21) or an outer winding (22) on the inner side of the special-shaped water cooling plates, and the water cooling pipes (42) are distributed in the special-shaped water cooling plates (41) according to a preset path.
3. The integrated low-surface heat radiation water-cooled transformer of claim 2, wherein: two water-cooling pipe ends (43) of the water-cooling pipes (42) extend out of the top end or the bottom end of the special-shaped water-cooling plate (41), the water-cooling pipe ends (43) between two adjacent water-cooling pipes (42) are communicated through a communicating pipe (44), and the water-cooling pipe ends (43) are detachably connected with the communicating pipe (44) through a connecting structure.
4. The integrated low-surface heat radiation water-cooled transformer of claim 3, wherein: two water-cooling pipe ends (43) of the water-cooling pipe (42) extend out of the top end or the bottom end of the special-shaped water-cooling plate (41) from the short side directions of the two sides of the winding (2).
5. The integrated low-surface heat radiation water-cooled transformer of claim 2, wherein: the preset path of the water cooling pipes (42) is S-shaped and reciprocally arranged along the length or width direction of the special-shaped water cooling plate (41).
6. The integrated low-surface heat radiation water-cooled transformer of claim 2, wherein: the special-shaped water cooling plates (41) are 匚 -shaped, and the two special-shaped water cooling plates (41) in the shape of 匚 can be assembled into a complete ring shape to surround the inner winding (21) or the outer winding (22) on the inner side of the special-shaped water cooling plates.
7. The integrated low-surface heat radiation water-cooled transformer as recited in any of claims 1-6, wherein: the exterior of the casting body (7) is wrapped with a heat insulation layer (6).
8. The integrated low-surface heat radiation water-cooled transformer of claim 2, wherein: the water cooling pipe (42) is a copper pipe or an aluminum pipe, and the special-shaped water cooling plate (41) is an aluminum plate or a copper plate.
9. The integrated low-surface heat radiation water-cooled transformer of claim 1, wherein: the iron core assembly (1) further comprises an upper iron yoke (12) and a lower iron yoke (13) which are respectively and fixedly arranged at the top end and the bottom end of at least two iron core columns (11).
10. The integrated low-surface heat radiation water-cooled transformer of claim 3, wherein: the connecting structure is a threaded connection or a flange connection or a clamp connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322752150.5U CN220962995U (en) | 2023-10-13 | 2023-10-13 | Integrated low-surface heat radiation water-cooled transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322752150.5U CN220962995U (en) | 2023-10-13 | 2023-10-13 | Integrated low-surface heat radiation water-cooled transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220962995U true CN220962995U (en) | 2024-05-14 |
Family
ID=90978793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322752150.5U Active CN220962995U (en) | 2023-10-13 | 2023-10-13 | Integrated low-surface heat radiation water-cooled transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220962995U (en) |
-
2023
- 2023-10-13 CN CN202322752150.5U patent/CN220962995U/en active Active
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