CN121260643A - Three-dimensional roll iron core assembly of power saving device - Google Patents
Three-dimensional roll iron core assembly of power saving deviceInfo
- Publication number
- CN121260643A CN121260643A CN202511517685.1A CN202511517685A CN121260643A CN 121260643 A CN121260643 A CN 121260643A CN 202511517685 A CN202511517685 A CN 202511517685A CN 121260643 A CN121260643 A CN 121260643A
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- CN
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- iron core
- groups
- inner cavity
- core assembly
- saving device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The application relates to the technical field of transformer components and discloses a three-dimensional iron core winding component of an electricity-saving device, which comprises an iron core component and a mounting shell, wherein the iron core component comprises a lower bracket fixedly mounted at the bottom of an inner cavity of the mounting shell, the top ends of the lower bracket are fixedly provided with iron cores, the top ends of three groups of iron cores are provided with an upper bracket so as to fix the top ends of the three groups of iron cores, and meanwhile, a pull rod with a hollow structure is arranged between the lower bracket and the upper bracket. The utility model provides a three-dimensional iron core subassembly of rolling up of power saving device, to the setting of iron core and last structure, effectively avoided producing the problem of lap joint seam in the iron core inside, and then make it not have obvious high resistance district or produce the phenomenon of magnetic flux density distortion in lap joint seam department, and to the setting of three iron core "article" style of calligraphy structural arrangement for the magnetic circuit length of iron core is identical completely and the sum of magnetic circuit length is shortest, simultaneously, make the magnetic circuit between three iron cores of group completely symmetrical, no-load current is balanced completely.
Description
Technical Field
The application relates to the technical field of transformer components, in particular to a three-dimensional iron core winding component of an electricity-saving device.
Background
The iron core component is a main magnetic circuit part in the transformer and forms a complete electromagnetic induction system with a coil wound on the iron core component to efficiently conduct magnetic flux, so that the magnetic field can be concentrated and guided by utilizing the high magnetic conductivity of the iron core component to reduce magnetic resistance and improve the working efficiency of the transformer;
The iron core assembly in the existing transformer is formed by stacking silicon steel sheets, but the iron core assembly manufactured in the mode is provided with the lap joint seams inside, so that the magnetic flux distribution of the magnetic circuit inside the iron core assembly is poor, the iron core assembly is provided with an obvious high-resistance area due to the lap joint seams, the phenomenon of magnetic flux density distortion is generated at the lap joint seams, the energy loss of the transformer in the operation process is increased, the overheat phenomenon is very easy to generate, and the stability and the reliability are poor.
Therefore, there is a need for an iron core assembly for use in a transformer, which overcomes the above-mentioned drawbacks of the conventional iron core assembly during the actual operation.
Disclosure of Invention
The application provides a three-dimensional coiled iron core assembly of an electricity-saving device, which has the advantages of effectively avoiding the occurrence of a lap joint in the iron core assembly and causing poor magnetic flux distribution of an internal magnetic circuit of the iron core assembly, having obvious high-resistance areas or generating magnetic flux density distortion, and is used for solving the problems that the existing iron core assembly has the lap joint in the interior, so that the magnetic flux distribution of the internal magnetic circuit of the iron core assembly is poor, the iron core assembly has obvious high-resistance areas due to the lap joint, and the phenomenon of generating magnetic flux density distortion at the lap joint is caused, so that the energy loss of the transformer in the operation process is increased and the transformer is extremely easy to overheat.
The three-dimensional roll iron core assembly of the power saving device comprises an iron core assembly and a mounting shell, wherein the iron core assembly comprises a lower bracket fixedly mounted at the bottom of an inner cavity of the mounting shell through bolts, three groups of iron cores which are arranged in a 'delta' -shaped structure are fixedly mounted at the top end of the lower bracket, so that the magnetic path lengths of the three groups of iron cores are completely equal and the sum of the magnetic path lengths is shortest, simultaneously, the magnetic paths of the three groups of iron cores are completely symmetrical, no-load current is completely balanced, and for the arrangement of the 'delta' -shaped structure of the three groups of iron cores, the material consumption of an iron yoke part in the iron core can be effectively reduced, meanwhile, the structural composition of the iron core assembly is greatly optimized, the occupied area is small, an upper bracket is arranged at the top end of the three groups of iron cores to fix the top end of the iron core, a plurality of groups of connecting terminals are arranged at the side end faces of the upper bracket, the iron cores are connected with external current through the connecting terminals, and meanwhile, a pull rod which is arranged in a ring-shaped array and is arranged between the lower bracket and the upper bracket;
The installation casing includes the shell body of inner chamber bottom fixed mounting lower carriage, the shell body, and be equipped with the end cover in order to wrap up the iron core subassembly wherein at the top of shell body to fill the transformer oil that has the submerged core in the inner chamber of shell body, and then can insulate, dispel the heat and the arc extinction operation to the iron core subassembly through the transformer oil that wherein fills.
Further, the iron core is formed by continuously and tightly rolling silicon steel sheet strips, and the rolling direction is the same as the magnetization direction of the silicon steel sheet strips, wherein the iron core is arranged, so that the problem of generating a lap joint seam inside the iron core is effectively avoided, and the phenomenon of generating magnetic flux density distortion at the lap joint seam or in an obvious high-resistance area is avoided;
on the premise of the same material, the iron loss process coefficient of the coiled iron core component is reduced from 1.3-1.5 to about 1.05 relative to the laminated iron core component, and the loss of the iron core component can be reduced by 10-20% by only one item;
meanwhile, the silicon steel sheet for manufacturing the iron core needs to be subjected to high-temperature (800 ℃) vacuum nitrogen-filled annealing treatment, so that the mechanical stress in the iron core is eliminated, the magnetic domain of the silicon steel sheet is thinned, and the secondary recrystallization capability of the silicon steel sheet is improved.
Further, the inside of shell body is equipped with the position mutual correspondence of three group's inner chamber and three group's iron core to be equipped with the position mutual correspondence of three group's pump pressure group and inner chamber at the top of shell body external surface, simultaneously, at the input fixed mounting of pump pressure group has first connecting pipe to communicate to the bottom of inner chamber, and the output fixed mounting of pump pressure group has the second connecting pipe to be linked together with the top of pull rod, set up a plurality of groups and be the first through-hole that linear array was arranged on the pull rod, and then when the transformer liquid temperature in the shell body inner chamber is too high, under the effect of pump pressure group, can extrude the lower transformer liquid of temperature in the inner chamber to the inner chamber of shell body through the pull rod in to produce certain degree disturbance to the higher transformer liquid of wherein, form convection effect in order to accelerate the heat exchange between it.
Further, the top of the inner cavity of the outer shell is provided with a circulation hole communicated with the inner cavity of the inner cavity, and the position of the circulation hole is higher than the top end of the iron core, so that the outer shell and the transformer liquid in the inner cavity can form a complete circulation loop in cooperation with the pump pressure group, and the transformer liquid with higher temperature in the outer shell can flow back to the inner cavity through the circulation hole for cooling treatment.
Further, the outer surface of the pull rod is provided with a movable ring at the corresponding position of the first through hole, the movable ring is provided with a second through hole corresponding to the first through hole, and the second through hole is positioned below the first through hole in the initial process, the bottom of the movable ring is provided with an expansion ring fixedly connected with the outer surface of the pull rod, and after the temperature of the transformer liquid in the inner cavity of the outer shell reaches a certain value, the expansion ring forces the movable ring to move upwards due to thermal expansion, so that the first through hole and the second through hole are mutually communicated.
Further, the inside of expansion ring is equipped with thermistor and forms the electricity feedback connection with pumping pressure group between, and then after transformer oil temperature in the shell body inner chamber reaches certain numerical value, when intercommunication first through-hole and second through-hole, can trigger pumping pressure group in order to carry the lower transformer oil extrusion of temperature in the inner chamber to the inner chamber of shell body.
Further, heat dissipation fins are arranged on the outer surface of the outer shell and positioned at corresponding positions of the inner cavity, and the cooling speed of the transformer liquid in the inner cavity of the inner cavity is increased through the heat dissipation fins.
The invention has the following beneficial effects:
1. the three-dimensional coiled iron core component of the power saving device provided by the application has the advantages that for the arrangement of the iron core and the upper structure of the iron core, the problem of joint seams generated in the iron core is effectively avoided, and further, an obvious high-resistance area or the phenomenon of magnetic flux density distortion generated at the joint seams is avoided, and for the arrangement of the three groups of iron cores in the shape of the Chinese character 'pin', the magnetic path lengths of the iron cores are completely equal and the sum of the magnetic path lengths is the shortest, meanwhile, the magnetic paths among the three groups of iron cores are completely symmetrical, no-load current is completely balanced, and the energy loss in the operation process is effectively reduced.
2. According to the three-dimensional coiled iron core assembly of the power saving device, when the temperature of transformer liquid in the inner cavity of the outer shell is too high, the transformer liquid with lower temperature in the inner cavity can be extruded and conveyed into the inner cavity of the outer shell through the pull rod under the action of the pump pressure group, and the transformer liquid with higher temperature generates a certain degree of disturbance to the transformer liquid, so that a convection effect is formed to accelerate heat exchange between the transformer liquid and the inner cavity, the cooling speed of the iron core assembly is improved, and the stability and reliability of the iron core assembly in the operation process are further effectively improved.
Drawings
For a clearer description of an embodiment of the invention or of a technical solution in the prior art, the drawings that are needed in the description of the embodiment or of the prior art will be briefly described, it being obvious that the drawings in the description below are only embodiments of the invention, and that other drawings can be obtained, without inventive effort, by a person skilled in the art from the drawings provided:
fig. 1 is a schematic structural view of an iron core assembly according to the present invention;
Fig. 2 is a front view of the core assembly of the present invention;
FIG. 3 is a top view of the core assembly of the present invention;
fig. 4 is a schematic view of an installation structure of the iron core assembly of the present invention;
FIG. 5 is a front view of the structure of the present invention, FIG. 4;
FIG. 6 is a schematic view of the mounting housing of the present invention;
fig. 7 is an enlarged schematic view of the structure of the present invention at a in fig. 1.
In the figure, a lower bracket, an upper bracket, a 3-iron core, a 4-wiring terminal, a 5-pull rod, a 6-outer shell, a 7-inner cavity, an 8-end cover, a 9-pumping pressure group, a 10-first connecting pipe, an 11-second connecting pipe, a 12-flow hole, a 13-movable ring and a 14-expansion ring are arranged.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 4, the three-dimensional roll iron core assembly of the power saving device comprises an iron core assembly and an installation shell, wherein the iron core assembly comprises a lower bracket 1 fixedly installed at the bottom of an inner cavity of the installation shell through bolts, as shown in fig. 2 and 3, three groups of iron cores 3 which are arranged in a 'delta' shape are fixedly installed at the top end of the lower bracket 1, so that the magnetic path lengths of the three groups of iron cores 3 are completely equal and the sum of the magnetic path lengths is shortest, simultaneously, the magnetic paths of the three groups of iron cores 3 are completely symmetrical, no-load current is completely balanced, and for the arrangement of the three groups of iron cores 3 in a 'delta' shape structure, the material consumption of an iron yoke part in the iron cores 3 can be effectively reduced, meanwhile, the structural composition of the iron core assembly is greatly optimized, the occupied area is smaller, an upper bracket 2 is arranged at the top end of the three groups of iron cores 3 to fix the top end of the iron cores, a plurality of groups of connecting terminals 4 are arranged at the side end faces of the upper bracket 2, and the iron cores 3 can be connected with external current through the connecting terminals 4, meanwhile, three groups of pull rods 5 which are arranged in a hollow array structure between the lower bracket 1 and the upper bracket 2;
As shown in fig. 5 and 6, the installation housing comprises an outer housing 6, and an end cover 8 is provided at the top end of the outer housing 6 to cover the iron core assembly therein, and transformer oil for submerging the iron core 3 is filled in the inner cavity of the outer housing 6, so that the insulation, heat dissipation and arc extinction operation can be performed on the iron core assembly by the transformer oil filled therein.
In the technical scheme, the iron core 3 is formed by continuously and tightly rolling silicon steel sheet strips, and the rolling direction is the same as the magnetization direction of the silicon steel sheet strips, wherein the iron core 3 is arranged, so that the problem of generating a lap joint seam in the iron core 3 is effectively avoided, and the phenomenon of generating magnetic flux density distortion in an obvious high-resistance area or at the lap joint seam is avoided;
on the premise of the same material, the iron loss process coefficient of the coiled iron core component is reduced from 1.3-1.5 to about 1.05 relative to the laminated iron core component, and the loss of the iron core component can be reduced by 10-20% by only one item;
Meanwhile, the silicon steel sheet for manufacturing the iron core 3 needs to be subjected to high-temperature (800 ℃) vacuum nitrogen-filled annealing treatment, so that the mechanical stress in the iron core 3 is eliminated, the magnetic domain of the silicon steel sheet is thinned, and the secondary recrystallization capability of the silicon steel sheet is improved.
As shown in fig. 5 and 6, in the present technical solution, three sets of inner chambers 7 and three sets of iron cores 3 are disposed inside an outer housing 6, and three sets of pump pressure sets 9 and three sets of inner chambers 7 are disposed at the top of the outer surface of the outer housing 6, and at the same time, a first connecting pipe 10 is fixedly mounted at the input end of the pump pressure set 9 and connected to the bottom of the inner chamber 7, and a second connecting pipe 11 is fixedly mounted at the output end of the pump pressure set 9 and connected to the top end of the pull rod 5, and the pull rod 5 is provided with a plurality of sets of first through holes arranged in a linear array, so that when the temperature of the transformer liquid in the inner chamber of the outer housing 6 is too high, under the action of the pump pressure sets 9, the transformer liquid with a lower temperature in the inner chamber 7 can be extruded and conveyed into the inner chamber of the outer housing 6 via the pull rod 5, and a certain disturbance is generated to the transformer liquid with a higher temperature therein, so as to form a convection effect to accelerate heat exchange between the transformer liquid.
As shown in fig. 6, in the present technical solution, a circulation hole 12 connected to the inner cavity of the inner cavity 7 is formed at the top of the inner cavity of the outer housing 6, and the position of the circulation hole 12 is higher than the top end of the iron core 3, so that a complete circulation loop can be formed by matching the outer housing 6 with the transformer liquid in the inner cavity 7 with the pump pressure set 9, and the transformer liquid with higher temperature in the outer housing 6 can flow back to the inner cavity 7 through the circulation hole 12 for cooling treatment.
As shown in fig. 7, in the present technical solution, a movable ring 13 is disposed on the outer surface of the pull rod 5 and located at a corresponding position of the first through hole on the outer surface, and a second through hole corresponding to the first through hole is formed in the movable ring 13, and in the initial stage, the second through hole is located below the first through hole, and an expansion ring 14 fixedly connected to the outer surface of the pull rod 5 is disposed at the bottom end of the movable ring 13, so that after the temperature of the transformer liquid in the inner cavity of the outer housing 6 reaches a certain value, the expansion ring 14 forces the movable ring 13 to move upwards due to thermal expansion, so that the first through hole and the second through hole are mutually communicated.
In this technical scheme, the inside of expansion ring 14 is equipped with thermistor and forms the electricity feedback connection with pumping pressure group 9 between, and then after the transformer oil temperature in the inner chamber of shell body 6 reaches certain numerical value, when intercommunication first through-hole and second through-hole, can trigger pumping pressure group 9 automatically in order to carry the lower transformer oil extrusion of temperature in inner chamber 7 to the inner chamber of shell body 6.
As shown in fig. 4, in the present technical solution, heat dissipation fins are disposed on the outer surface of the outer housing 6 and located at corresponding positions of the inner chamber 7, so as to accelerate the cooling rate of the transformer liquid in the inner cavity of the inner chamber 7 through the heat dissipation fins.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a three-dimensional roll iron core subassembly of power saving device, includes iron core subassembly and installation casing, its characterized in that:
The iron core assembly comprises a lower bracket (1) fixedly arranged at the bottom of an inner cavity of the installation shell, three groups of iron cores (3) which are arranged in a 'V' -shaped structure are fixedly arranged at the top end of the lower bracket (1), an upper bracket (2) is arranged at the top ends of the three groups of iron cores (3) so as to fix the top ends of the three groups of iron cores, a plurality of groups of wiring terminals (4) are arranged at the side end surfaces of the upper bracket (2), and meanwhile, a pull rod (5) with a hollow structure is arranged between the lower bracket (1) and the upper bracket (2);
The installation shell comprises an outer shell (6) of the lower support (1) fixedly installed at the bottom of the inner cavity, the outer shell (6) is provided with an end cover (8) at the top end of the outer shell (6) so as to cover the iron core assembly therein, and transformer oil for submerging the iron core (3) is filled in the inner cavity of the outer shell (6).
2. The three-dimensional wound iron core assembly of a power saving device according to claim 1, characterized in that the iron core (3) is continuously wound from a strip of silicon steel sheet and has the same winding direction as the magnetization direction thereof.
3. The three-dimensional roll core assembly of the power saving device according to claim 2, wherein three groups of inner cavities (7) are arranged in the outer shell (6) and correspond to the three groups of cores (3), three groups of pump pressure groups (9) are arranged at the top of the outer surface of the outer shell (6) and correspond to the inner cavities (7), meanwhile, a first connecting pipe (10) is fixedly arranged at the input end of the pump pressure groups (9) and communicated to the bottom of the inner cavity of the inner cavities (7), a second connecting pipe (11) is fixedly arranged at the output end of the pump pressure groups (9) and communicated with the top end of the pull rod (5), and a plurality of groups of first through holes which are arranged in a linear array are formed in the pull rod (5).
4. The three-dimensional coiled iron core assembly of the power saving device according to claim 3, wherein a circulation hole (12) communicated to the inner cavity of the inner cavity (7) is formed in the top of the inner cavity of the outer shell (6), the position of the circulation hole (12) is higher than the top end of the iron core (3), so that a complete circulation loop can be formed between the outer shell (6) and the transformer liquid in the inner cavity (7) by matching with the pump pressure group (9), and the transformer liquid with higher temperature in the outer shell (6) can flow back to the inner cavity (7) through the circulation hole (12) for cooling treatment.
5. The three-dimensional roll core assembly of the power saving device according to claim 4, wherein a movable ring (13) is arranged on the outer surface of the pull rod (5) and positioned at the corresponding position of the first through hole, a second through hole corresponding to the first through hole is formed in the movable ring (13), the second through hole is positioned below the first through hole in the initial process, and an expansion ring (14) fixedly connected with the outer surface of the pull rod (5) is arranged at the bottom end of the movable ring (13).
6. The power saving device stereo wound core assembly of claim 5, characterized in that the inside of the expansion ring (14) is provided with a thermistor and forms an electrical feedback connection with the pump pressure group (9).
7. The power saving device stereoscopic rolled iron core assembly according to claim 1, characterized in that heat radiating fins are provided on the outer surface of the outer housing (6) at corresponding positions of the inner chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511517685.1A CN121260643A (en) | 2025-10-23 | 2025-10-23 | Three-dimensional roll iron core assembly of power saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511517685.1A CN121260643A (en) | 2025-10-23 | 2025-10-23 | Three-dimensional roll iron core assembly of power saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN121260643A true CN121260643A (en) | 2026-01-02 |
Family
ID=98178627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511517685.1A Pending CN121260643A (en) | 2025-10-23 | 2025-10-23 | Three-dimensional roll iron core assembly of power saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN121260643A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH239090A (en) * | 1941-07-10 | 1945-09-15 | Westinghouse Electric Corp | Laminated magnetic core, with glued lamellae. |
| CN101276680A (en) * | 2007-03-26 | 2008-10-01 | 齐会南 | Oil-immersed power transformer |
| CN202120722U (en) * | 2011-07-05 | 2012-01-18 | 特变电工衡阳变压器有限公司 | Iron core reactor |
| CN204537815U (en) * | 2015-04-14 | 2015-08-05 | 河北高晶电器设备有限公司 | Energy-saving oil immersed three dimensional wound core drive rectifier transformer |
| WO2017129074A1 (en) * | 2016-01-29 | 2017-08-03 | 齐侠 | Oil-immersed transformer having foldable three-dimensional double-opening iron core |
| CN206379260U (en) * | 2017-01-04 | 2017-08-04 | 江苏亚威变压器有限公司 | A kind of oil immersed type reel iron core transformer |
| CN114203415A (en) * | 2021-11-02 | 2022-03-18 | 许继变压器有限公司 | Three-dimensional wound core transformer |
| CN217507060U (en) * | 2022-06-28 | 2022-09-27 | 南阳市瑞光变压器有限公司 | Energy-saving three-dimensional rolled iron core oil-immersed transformer |
| CN220895327U (en) * | 2023-09-28 | 2024-05-03 | 安徽王泰电气集团有限公司 | Tensioning structure of high-voltage series reactor |
-
2025
- 2025-10-23 CN CN202511517685.1A patent/CN121260643A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH239090A (en) * | 1941-07-10 | 1945-09-15 | Westinghouse Electric Corp | Laminated magnetic core, with glued lamellae. |
| CN101276680A (en) * | 2007-03-26 | 2008-10-01 | 齐会南 | Oil-immersed power transformer |
| CN202120722U (en) * | 2011-07-05 | 2012-01-18 | 特变电工衡阳变压器有限公司 | Iron core reactor |
| CN204537815U (en) * | 2015-04-14 | 2015-08-05 | 河北高晶电器设备有限公司 | Energy-saving oil immersed three dimensional wound core drive rectifier transformer |
| WO2017129074A1 (en) * | 2016-01-29 | 2017-08-03 | 齐侠 | Oil-immersed transformer having foldable three-dimensional double-opening iron core |
| CN206379260U (en) * | 2017-01-04 | 2017-08-04 | 江苏亚威变压器有限公司 | A kind of oil immersed type reel iron core transformer |
| CN114203415A (en) * | 2021-11-02 | 2022-03-18 | 许继变压器有限公司 | Three-dimensional wound core transformer |
| CN217507060U (en) * | 2022-06-28 | 2022-09-27 | 南阳市瑞光变压器有限公司 | Energy-saving three-dimensional rolled iron core oil-immersed transformer |
| CN220895327U (en) * | 2023-09-28 | 2024-05-03 | 安徽王泰电气集团有限公司 | Tensioning structure of high-voltage series reactor |
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