CN220821263U - Mutual inductor iron core structure - Google Patents
Mutual inductor iron core structure Download PDFInfo
- Publication number
- CN220821263U CN220821263U CN202322352337.6U CN202322352337U CN220821263U CN 220821263 U CN220821263 U CN 220821263U CN 202322352337 U CN202322352337 U CN 202322352337U CN 220821263 U CN220821263 U CN 220821263U
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- iron core
- iron
- bulge
- profile
- mounting groove
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 159
- 229910052742 iron Inorganic materials 0.000 claims description 37
- 239000011324 bead Substances 0.000 claims description 20
- 230000013011 mating Effects 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 210000002421 cell wall Anatomy 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The application relates to a transformer core structure, which relates to the technical field of transformers. When the iron core structure of the formed transformer is installed, the profile strip can be inserted into the installation groove, and then the part of the iron core provided with the installation groove is subjected to stamping treatment, so that the groove wall of the installation groove and the end part of the profile strip are tightly pressed together.
Description
Technical Field
The application relates to the technical field of transformers, in particular to a transformer iron core structure.
Background
The transformer is generally composed of a plurality of iron core sheets in structure, the iron core sheets are stacked together through a plurality of sheet-shaped iron sheets and are formed by compression joint in a specific mode, and the stacking and compression joint design of the iron core sheets is beneficial to increasing the magnetic conductance of the transformer, so that the transformation ratio and the transmission efficiency of the transformer are improved. The shape and material selection of the iron core plate is intended to reduce energy loss and magnetic field leakage.
The current transformer iron core is generally in a square ring shape, the square ring shape of the current transformer iron core is generally formed by butt joint of two C-shaped iron cores, the current transformer iron cores are generally connected together in a welding or riveting mode under normal conditions, and after the iron cores are spliced and fixed, coils are installed on iron columns opposite to the two iron cores.
When the iron core is welded, the iron core is deformed due to thermal expansion and subsequent cooling shrinkage of the welded part, and likewise, when the iron core is riveted, if the pressure is uneven or too large, the iron core is distorted, so that the dimensional accuracy of the iron core is difficult to ensure, and the size of the iron core can directly influence the performance of the transformer.
Disclosure of utility model
The application aims to provide a transformer iron core structure for guaranteeing dimensional accuracy.
The application provides a transformer iron core structure, which adopts the following technical scheme:
The utility model provides a mutual-inductor iron core structure, includes iron core and parting bead, the mounting groove has all been seted up at the both ends of iron core, the tip of parting bead with the mounting groove joint.
Through adopting above-mentioned technical scheme, when shaping iron core structure, insert the mounting groove with the profile in, then set up the part of mounting groove to the iron core and carry out punching press processing, make the cell wall of mounting groove and the tip of profile tightly press together, be connected closely between iron core and the profile, shaping iron core structure is also more convenient, compare in traditional welding and riveting method, this kind of connected mode also can reduce the possibility that the iron core takes place deformation at the in-process of combination installation iron core structure effectively, its dimensional accuracy has been ensured, the influence to the transformer performance because the size deviation is too big in the combination installation has been reduced.
Optionally, the iron core includes a plurality of first iron sheets, the profile includes a plurality of second iron sheets, a plurality of first iron sheets are stacked and pressed to form the iron core, and a plurality of second iron sheets are stacked and pressed to form the profile.
Through adopting above-mentioned technical scheme, with the riveting formation iron core behind a plurality of first iron sheet combinations stack together, with the riveting formation parting bead behind a plurality of second iron sheet stacks of same mode, and then form the connection of fastening, be convenient for production and processing iron core and parting bead.
Optionally, the second iron sheet located at the outermost side of the profile is connected with a supporting sheet, and the iron core can be abutted to the supporting sheet.
When inserting the parting bead to the mounting groove, because the parting bead can slide along the seting up depth direction of mounting groove, the position of parting bead probably takes place the skew when stamping forming transformer core structure, influences the performance of transformer, through adopting above-mentioned technical scheme, the bearing piece can carry out the bearing and further spacing to the parting bead to prevent parting bead skew, transformer core structure's yield is ensured.
Optionally, a plurality of mounting holes for rivets are formed in the first iron sheet and the second iron sheet.
Through adopting above-mentioned technical scheme, a plurality of pins rivet into in first iron sheet and the second iron sheet, later compress again, connect through a plurality of rivets, be favorable to guaranteeing the bulk strength of iron core and profile.
Optionally, a first protruding portion is provided at an end of the profile, and the first protruding portion is in clamping fit with the mounting groove.
Through adopting above-mentioned technical scheme, when with parting bead and iron core joint, the mounting groove can carry out the cladding better to the first bulge on the parting bead for the cell wall of mounting groove and the terminal surface of parting bead tightly butt after the punching press processing are favorable to guaranteeing the stability that parting bead and iron core are connected.
Optionally, the end of the iron core is provided with a second protruding part, and the end of the profile strip is provided with a matching groove matched with the second protruding part.
Through adopting above-mentioned technical scheme, when the both ends round pin of parting bead goes into the mounting groove, first bulge and the cell wall looks joint cooperation of mounting groove this moment, and second bulge and the cell wall looks joint cooperation of cooperation groove for first bulge overlaps mutually with the second bulge, waits to punch out second bulge part after the joint and makes and form zonulae occludens between first bulge and the second bulge, has ensured the stability of being connected between parting bead and the iron core.
Optionally, a third protruding portion is disposed at an end of the iron core, and the matching groove is formed between the first protruding portion and the third protruding portion.
Through adopting above-mentioned technical scheme, the cooperation groove separates first bulge and third bulge, and the second bulge of iron core tip department then inserts to the cooperation inslot, after stamping forming, and first bulge and the equal second bulge of third bulge are tightly interlock, and it is more firm to connect, has reduced after long-term use transformer, takes place to break away from the possibility of cooperation between iron core part and the parting strip part.
Optionally, the end of the core is flush with the end of the profile.
By adopting the technical scheme, the stability of the transformer core structure formed by stamping forming is improved, and the performance of the transformer is guaranteed.
In summary, the present application includes at least one of the following beneficial technical effects:
1. In the application, when the iron core structure is formed, the profile strip is inserted into the mounting groove, and then the part of the iron core provided with the mounting groove is punched, so that the groove wall of the mounting groove is tightly pressed with the end part of the profile strip, the iron core is tightly connected with the profile strip, the formed iron core structure is more convenient, and compared with the traditional welding and riveting method, the connection mode can also effectively reduce the possibility of deformation of the iron core in the process of assembling the iron core structure, ensure the dimensional accuracy and reduce the influence on the performance of the transformer due to overlarge dimensional deviation in the assembling and mounting process.
2. The first bulge part is arranged at the end part of the profile strip, and the mounting groove can better cover the first bulge part on the profile strip when the profile strip is clamped with the iron core, so that the groove wall of the mounting groove is tightly abutted with the end surface of the profile strip after stamping treatment, and the connection stability of the profile strip and the iron core is guaranteed.
3. The end part of the middle-sized strip can be further provided with the third protruding part, the first protruding part and the third protruding part are separated by the matching groove, the second protruding part at the end part of the iron core is inserted into the matching groove, after the middle-sized strip is formed by stamping, the first protruding part and the third protruding part are tightly meshed, the connection is more stable, and the possibility of disengaging the iron core part from the profile part after the transformer is used for a long time is reduced.
Drawings
Fig. 1 is a schematic perspective view of the transformer core structure and the coil sleeve in embodiment 1 of the present application.
Fig. 2 is an exploded view of the transformer core structure in embodiment 2 of the present application.
In the figure, 1, an iron core; 11. a mounting groove; 12. a first iron sheet; 2. a profile; 21. a mating groove; 22. a second iron sheet; 221. a support sheet; 3. a coil sleeve; 4. a mounting hole; 5. a first projection; 6. a second projection; 7. and a third projection.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 2.
Example 1:
referring to fig. 1, the whole transformer core 1 structure is annular, a transformer core 1 structure includes iron core 1 and profile 2, has seted up mounting groove 11 on the both ends of iron core 1, and the both ends of profile 2 are protruding form and can with the inner wall butt of mounting groove 11.
Referring to fig. 1, coil sleeves 3 can be installed at both ends of an iron core 1, wires with different turns are wound on two coil sleeves 3, the wires corresponding to one coil sleeve 3 are electrified, and current and voltage with a transformation ratio are formed in the wires corresponding to the other coil sleeve 3 under the mutual inductance action of a transformer.
Referring to fig. 1, the outer side wall of the turning portion of the iron core 1 is provided with a rounded corner to reduce the sharpness of the outer side portion of the iron core 1, reduce the scratch of related personnel by the sharp turning portion of the iron core 1 when using the iron core 1, further, the iron core 1 includes a plurality of first iron sheets 12, the profile 2 includes a plurality of second iron sheets 22, the plurality of first iron sheets 12 are stacked and pressed to form the iron core 1, the plurality of second iron sheets 22 are stacked and pressed to form the profile 2, so as to facilitate production and processing.
Referring to fig. 1, the first iron sheet 12 and the second iron sheet 22 are provided with a plurality of mounting holes 4 for riveting, the mounting holes 4 are uniformly distributed on the first iron sheet 12 and the second iron sheet 22, as a preferred mode of the embodiment of the application, 6 mounting holes 4 are uniformly distributed on the first patch, two mounting holes 4 are uniformly distributed on the second iron sheet 22, the plurality of first iron sheets 12 are combined and stacked together, then the rivets are riveted into the mounting holes 4 to form a U-shaped iron core 1, and similarly, the plurality of second iron sheets 22 are combined and stacked to form a forming strip 2.
Referring to fig. 1, the mounting groove 11 is disposed in a hook shape, in other embodiments, the mounting groove 11 may be disposed in a U-shape or a hemispherical shape, so as to ensure that the groove wall of the mounting groove 11 can better cover the end surface of the molding bar 2, and in this embodiment, the end portion of the molding bar 2 is provided with the first protruding portion 5, and the first protruding portion 5 is in clamping fit with the mounting groove 11. The end of the iron core 1 is provided with a second protruding part 6, the end of the profile 2 is provided with a matching groove 21 matched with the second protruding part 6, further, the end of the iron core 1 is provided with a third protruding part 7, and the matching groove 21 is formed between the first protruding part 5 and the third protruding part 7.
The two ends of the profile strip 2 are pinned into the mounting groove 11, at this time, the groove wall of the mounting groove 11 coats the first protruding part, the groove wall of the matching groove 21 coats the second protruding part 6, the first protruding part 5 and the second protruding part 6 are overlapped together, and then the second protruding part 6 is punched, so that the groove wall of the mounting groove 11 and the groove wall of the matching groove 21 are tightly pressed together, and the combined mounting is completed.
The implementation principle of the embodiment 1 of the application is as follows: the method comprises the steps of stacking a plurality of first iron sheets 12 together in a combined mode, inserting rivets into mounting holes 4 to rivet and press to form an iron core 1, stacking a plurality of second iron sheets 22 together in a combined mode, riveting and pressing to form a coil sleeve 3 on two ends of the iron core 1 in the same mode, inserting the pins of the mold strip 2 into mounting grooves 11, and enabling groove walls of matching grooves 21 formed in the mold strip 2 to be matched with groove walls of the mounting grooves 11;
At this moment, the second protruding part 6 on the iron core 1 is stamped, and the first protruding part 5 and the third protruding part 7 are both tightly meshed with the second protruding part 6, so that the connection is firmer and firmer, the possibility that the iron core 1 part and the section bar 2 part are separated from each other after the transformer is long-term is reduced, the production is convenient, the coil can also be directly sleeved on the iron core 1 through the coil sleeve 3, and compared with the traditional welding and riveting method, the connection mode can effectively reduce the possibility that the iron core 1 deforms in the combined installation process, ensure the dimensional accuracy of the iron core 1, and reduce the influence on the performance of the transformer.
Example 2:
Referring to fig. 2, the difference between the present embodiment 2 and embodiment 1 is that the second iron sheet 22 located at the outermost side of the profile 2 is connected with the supporting sheet 221, specifically, the supporting sheet 221 and the second iron sheet 22 are connected together by adopting an adhesive manner, preferably, the end portions of the supporting sheet 221 are obliquely arranged, so that the two ends of the supporting sheet are in a convex shape, and the side walls of the end portions of the supporting sheet 221 can abut against the side walls of the second convex portions 6, so as to limit the profile 2, and in order to reduce the interference of the supporting sheet 221 on the transformer, the supporting sheet 221 in the present application is made of plastic material, and in other embodiments, glass or ceramic material can be selected, so as not to affect the normal operation of the transformer.
The implementation principle of the embodiment 2 of the application is as follows: when inserting profile 2 to mounting groove 11, profile 2 can slide along the setup depth direction of mounting groove 11, when waiting fixed position when sliding, the lateral wall of bearing piece and the lateral wall butt of second bulge 6 make bearing piece 221 can spacing profile 2 like this, with reduce the possibility that profile 2 takes place the skew when stamping forming transformer core 1 structure, in the in-process that uses transformer core 1 structure, will have the one end of bearing piece 221 and arrange the bottom in, also can reduce long-term use transformer back profile 2 and slide along the setup depth direction of mounting groove 11 and break away from the possibility of cooperation with iron core 1.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (1)
1. The utility model provides a mutual inductor iron core structure, its characterized in that includes iron core (1) and parting bead (2), mounting groove (11) have all been seted up at the both ends of iron core (1), the tip of parting bead (2) with mounting groove (11) joint, iron core (1) include a plurality of first iron sheet (12), parting bead (2) include a plurality of second iron sheet (22), a plurality of first iron sheet (12) stack suppression forms iron core (1), a plurality of second iron sheet (22) stack suppression forms parting bead (2), be located on second iron sheet (22) of parting bead (2) outermost be connected with bearing piece (221), iron core (1) can with bearing piece (221) butt, a plurality of mounting holes (4) that supply rivet to rivet in have all been seted up on first iron sheet (12) and second iron sheet (22);
the end of profile (2) is provided with first bulge (5), first bulge (5) with mounting groove (11) joint cooperation, the end of iron core (1) is provided with second bulge (6), the tip of profile (2) seted up with second bulge (6) matched with mating groove (21), the end of iron core (1) is provided with third bulge (7), first bulge (5) with form between third bulge (7) mating groove (21), the end of iron core (1) with the tip of profile (2) keeps flushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352337.6U CN220821263U (en) | 2023-08-30 | 2023-08-30 | Mutual inductor iron core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352337.6U CN220821263U (en) | 2023-08-30 | 2023-08-30 | Mutual inductor iron core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821263U true CN220821263U (en) | 2024-04-19 |
Family
ID=90704117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322352337.6U Active CN220821263U (en) | 2023-08-30 | 2023-08-30 | Mutual inductor iron core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821263U (en) |
-
2023
- 2023-08-30 CN CN202322352337.6U patent/CN220821263U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |