CN218676715U - Magnetic core for power transformer - Google Patents
Magnetic core for power transformer Download PDFInfo
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- CN218676715U CN218676715U CN202221877823.9U CN202221877823U CN218676715U CN 218676715 U CN218676715 U CN 218676715U CN 202221877823 U CN202221877823 U CN 202221877823U CN 218676715 U CN218676715 U CN 218676715U
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- magnetic core
- magnetic
- bar magnet
- cylinder bar
- power transformer
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Abstract
The utility model discloses a power transformer technical field's a magnetic core for power transformer, including first magnetic core, the second magnetic core, first protruding portion, the second protruding portion, first cylinder bar magnet, second cylinder bar magnet, first cylinder bar magnet, connect through first stop device between the second cylinder bar magnet, first magnetic core, connect through second stop device between the second magnetic core, first stop device is used for first magnetic core, the second magnetic core carries out vertical spacing, the second stop device is used for restricting first magnetic core, the second magnetic core rotates around the axial of first cylinder bar magnet or second cylinder bar magnet. Can produce the restraint spacing to two first magnetic cores, the second magnetic core of piecing together the installation through first stop device, second stop device for first magnetic core, second magnetic core can fix a position fast after piecing together, replace the mode of press forming, make first magnetic core, the second magnetic core qualification rate after piecing together the installation high, are difficult for producing the dislocation, and have realized exchanging.
Description
Technical Field
The utility model relates to a power transformer technical field specifically is a magnetic core for power transformer.
Background
The power transformer is a soft magnetic electromagnetic element, has the functions of power transmission, voltage transformation and insulation isolation, and is widely applied to power supply technology and power electronic technology. According to the magnitude of the transmitted power, the power transformer can be divided into several grades, wherein more than 10kVA is high power, 10 kVA-0.5 kVA is medium power, 0.5 kVA-25 VA is low power, and less than 25VA is micro power. Magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. The manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density and has the characteristic of lower loss. The nickel-zinc ferrite has the characteristics of extremely high resistivity, low magnetic permeability of less than several hundred, and the like. Ferrite cores are used in coils and transformers for various electronic devices.
The EQ type magnetic core that uses on the present power transformer mainly comprises two the same EQ type magnetic cores piecing together, and shaping when this EQ type magnetic core suppression is difficult, and suppression qualification rate is low, keeps fixed position when being difficult to guarantee two magnetic cores piecing together, and two magnetic cores to piecing together the installation produce the dislocation easily.
Based on this, the utility model designs a power transformer is with magnetic core to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
To current problem, the utility model provides a magnetic core for power transformer, the problem of proposing among the effectual solution background art.
In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides a magnetic core for power transformer, includes first magnetic core, the second magnetic core to piecing together the installation, the length direction both ends of first magnetic core, second magnetic core are equipped with first protruding portion, second protruding portion respectively, the middle part position of the relative side surface of first magnetic core, second magnetic core is equipped with first cylinder bar magnet, second cylinder bar magnet respectively, connect through first stop device between first cylinder bar magnet, the second cylinder bar magnet, connect through the second stop device between first magnetic core, the second magnetic core, first stop device is used for vertically spacing first magnetic core, second magnetic core, the axial rotation that second stop device is used for restricting first magnetic core, second magnetic core around first cylinder bar magnet or second cylinder bar magnet.
In the magnetic core for the power transformer, the first limiting device comprises a locking part arranged on the end face of the second cylindrical magnetic rod, a locking groove for clamping the locking part is formed in the end face of the first cylindrical magnetic rod, and the locking part is clamped into the locking groove to ensure that no gap or notch is formed on the outer surfaces of the first cylindrical magnetic rod and the second cylindrical magnetic rod.
In the above-described magnetic core for a power transformer, the outer contour of the locking portion is formed in a dovetail shape.
In the above magnetic core for a power transformer, the second limiting device includes a connecting plate, the two ends of the connecting plate in the length direction are respectively and vertically and fixedly connected with the cylindrical clamping strip, the outer walls of the first protruding portion and the second protruding portion are correspondingly provided with arc-shaped clamping grooves for clamping the cylindrical clamping strips, and the surface of the connecting plate is abutted against the surface of the first magnetic core or the surface of the second magnetic core.
In the magnetic core for the power transformer, the arc-shaped clamping groove corresponds to two ends of the first magnetic core and the second magnetic core in the length direction.
In the magnetic core for the power transformer, the middle position of the connecting plate is provided with an integrally formed elastic bending section.
Compared with the prior art, the beneficial effects of the utility model are that: through first stop device, the second stop device can be to two first magnetic cores to piecing together the installation, the second magnetic core produces the restraint spacing, make first magnetic core, the second magnetic core can fix a position fast after piecing together, prior art relatively, replace press forming's mode, make the first magnetic core after piecing together the installation, the second magnetic core qualification rate is high, be difficult for producing the dislocation, and exchange has been realized, in addition through setting up the elasticity bending section, make under the natural state, the elasticity bending section has the trend that two cylinder cards strip of drive are close to relatively, in order to guarantee that cylinder cards strip can comparatively firm block in the arc draw-in groove.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention;
FIG. 2 is a schematic bottom view of the structure of FIG. 1;
fig. 3 is an exploded schematic view of the structure of fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a first magnetic core, 2-a first cylindrical magnetic rod, 3-a locking part, 4-a first protrusion part, 5-a second cylindrical magnetic rod, 6-a second protrusion part, 7-a second magnetic core, 8-a connecting plate, 9-an elastic bending section, 10-a cylindrical clamping strip, 11-an arc-shaped clamping groove and 12-a locking groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the present embodiment provides a magnetic core for a power transformer, which includes a first magnetic core 1 and a second magnetic core 7 that are assembled together, wherein two ends of the first magnetic core 1 and the second magnetic core 7 in the length direction are respectively provided with a first protrusion 4 and a second protrusion 6, the middle positions of the opposite side surfaces of the first magnetic core 1 and the second magnetic core 7 are respectively provided with a first cylindrical magnetic rod 2 and a second cylindrical magnetic rod 5, the first cylindrical magnetic rod 2 and the second cylindrical magnetic rod 5 are connected by a first limiting device, the first magnetic core 1 and the second magnetic core 7 are connected by a second limiting device, the first limiting device is used for longitudinally limiting the first magnetic core 1 and the second magnetic core 7, the second limiting device is used for limiting the axial rotation of the first magnetic core 1 and the second magnetic core 7 around the first cylindrical magnetic rod 2 or the second cylindrical magnetic rod 5, the first limiting device comprises a locking part 3 arranged on the end face of a second cylindrical magnetic rod 5, a locking groove 12 for clamping the locking part 3 is arranged on the end face of the first cylindrical magnetic rod 2, after the locking part 3 is clamped into the locking groove 12, no gap or notch is generated on the outer surfaces of the first cylindrical magnetic rod 2 and the second cylindrical magnetic rod 5, when the first magnetic core and the second magnetic core are assembled, the locking part is firstly clamped into the locking groove until the first cylindrical magnetic rod and the second cylindrical magnetic rod are spliced, no gap, notch, depression and the like are generated on the surfaces of the first cylindrical magnetic rod and the second cylindrical magnetic rod and the surface of the locking part, thus the magnetic leakage phenomenon of the first cylindrical magnetic rod and the second cylindrical magnetic rod is avoided, after the locking part is clamped into the locking groove, the axial limiting can be generated on the first cylindrical magnetic rod and the second cylindrical magnetic rod, in addition, the locking part 3 is swallowtail-shaped in outline, the design ensures that the locking part is processed to be simpler and the processing technology is not complex, the second limiting device comprises a connecting plate 8, each perpendicular rigid coupling at two ends of the connecting plate 8 in the length direction is provided with a cylindrical clamping strip 10, a first protruding part 4, an arc-shaped clamping groove 11 for clamping the cylindrical clamping strip 10 is correspondingly formed in the outer wall of a second protruding part 6, the surface of the connecting plate 8 is abutted to the surface of a first magnetic core 1 or a second magnetic core 7, the locking part is clamped into a locking groove, the two cylindrical clamping strips are correspondingly clamped into the first magnetic core, the arc-shaped clamping groove of the second magnetic core is formed in the outer wall of the second protruding part, the first magnetic core and the second magnetic core can be limited along the radial direction of the first cylindrical magnetic rod or the second cylindrical magnetic rod, the first magnetic core and the second magnetic core can be limited reliably, the second magnetic core is difficult to be dislocated after being assembled, the arc-shaped clamping groove 11 is corresponding to the first magnetic core 1, the length direction and the two ends of the second magnetic core are corresponding, the first magnetic core and the limiting effect of the second magnetic core is better, the middle position of the connecting plate 8 is provided with an integrally formed elastic bending section 9, and the elastic clamping strip can be clamped in the trend of two cylindrical clamping strips, and the arc-shaped clamping strips can be guaranteed to be clamped in the trend of the cylindrical clamping strips when the cylindrical clamping strips, and move relatively.
It should be noted that, in this document, relational terms such as first and second, and the like are 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, and furthermore, the terms "comprise", "include", 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.
Claims (6)
1. The utility model provides a magnetic core for power transformer, includes first magnetic core (1), second magnetic core (7) to piecing together the installation, the length direction both ends of first magnetic core (1), second magnetic core (7) are equipped with first protruding portion (4), second protruding portion (6) respectively, the middle part position of first magnetic core (1), second magnetic core (7) relative side surface is equipped with first cylinder bar magnet (2), second cylinder bar magnet (5) respectively, its characterized in that, connect through first stop device between first cylinder bar magnet (2), the second cylinder bar magnet (5), connect through second stop device between first magnetic core (1), the second magnetic core (7), first stop device is used for carrying out vertical spacing to first magnetic core (1), second magnetic core (7), second stop device is used for limiting first magnetic core (1), second magnetic core (7) around the axial of first cylinder bar magnet (2) or second cylinder bar magnet (5) and rotates.
2. The magnetic core for the power transformer according to claim 1, wherein the first limiting device comprises a locking portion (3) arranged on an end surface of the second cylindrical magnetic rod (5), a locking groove (12) for clamping the locking portion (3) is formed in the end surface of the first cylindrical magnetic rod (2), and after the locking portion (3) is clamped into the locking groove (12), no gap or notch is formed on the outer surfaces of the first cylindrical magnetic rod (2) and the second cylindrical magnetic rod (5).
3. A core for a power transformer according to claim 2, characterized in that the locking part (3) is dovetailed in its outer contour.
4. The magnetic core for the power transformer according to claim 3, wherein the second limiting device comprises a connecting plate (8), two ends of the connecting plate (8) in the length direction are respectively and vertically fixedly connected with a cylindrical clamping strip (10), the outer walls of the first protruding portion (4) and the second protruding portion (6) are correspondingly provided with an arc-shaped clamping groove (11) for clamping the cylindrical clamping strip (10), and the surface of the connecting plate (8) is abutted against the surface of the first magnetic core (1) or the second magnetic core (7).
5. A magnetic core for a power transformer according to claim 4, wherein the arc-shaped slot (11) corresponds to two ends of the first magnetic core (1) and the second magnetic core (7) in the length direction.
6. A magnetic core for a power transformer according to claim 4, characterized in that the connecting plate (8) is provided with an integrally formed elastic bending section (9) at a central position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877823.9U CN218676715U (en) | 2022-07-18 | 2022-07-18 | Magnetic core for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877823.9U CN218676715U (en) | 2022-07-18 | 2022-07-18 | Magnetic core for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218676715U true CN218676715U (en) | 2023-03-21 |
Family
ID=85553768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221877823.9U Active CN218676715U (en) | 2022-07-18 | 2022-07-18 | Magnetic core for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218676715U (en) |
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2022
- 2022-07-18 CN CN202221877823.9U patent/CN218676715U/en active Active
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