Fixing device for iron core and coil
By introducing the use of wooden materials into the fixed structure of the transformer, pressing the top and bottom surfaces of the iron core, and clamping the coils through the wooden plywood mechanism, the extrusion friction problems caused by iron or steel materials in the prior art are solved, and noise reduction and wear reduction of the iron core and coils are achieved.
Patent Information
- Application Number
- CN202422048870.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing transformer fixed structures mainly use iron or steel materials, which causes the iron core, coil and fixed structure to squeeze and rub against each other during transportation, which makes it very noise, which can easily lead to wear of the iron core and coil.
A fixing device including metal bottom strips, wooden strips, metal frames, wooden plywood mechanisms and wooden pressing plates is adopted. Wooden strips and wooden pressing plates are used to press the top and bottom surfaces of the iron core. The wooden plywood mechanism clamps both ends of the coil, using the buffering and vibration effects of the wooden material and the lower hardness and wear resistance to reduce friction and wear.
During transportation, the use of this fixture can significantly reduce noise and reduce wear of the core and coils, improving transportation stability and safety.
Smart Images
Figure CN223023021U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of transformers, and particularly to a fixing device for an iron core and a coil. Background Art
[0002] The iron core is generally formed by laminating multiple silicon steel sheets with insulating paint on the surface. The energized coil is wound around the iron core to form the electromagnetic induction system of the transformer. The iron core and the coil need to be fixed during storage and transportation. The related fixing structures generally directly fix the iron core and the coil only using iron or steel materials. During transportation, the iron core, the coil and the fixing structure squeeze and rub against each other, resulting in loud noise and easy wear of the iron core and the coil. Utility Model Content
[0003] In order to solve the problem that the related fixing structures directly fix the iron core and the coil only using iron or steel materials, during transportation, the iron core, the coil and the fixing structure squeeze and rub against each other, resulting in loud noise and easy wear of the iron core and the coil, the following technical solutions are proposed in this application.
[0004] A fixing device for an iron core and a coil includes multiple metal bottom bars, multiple wooden bars, a metal frame, multiple sets of wooden clamping plate mechanisms and several wooden pressing plates. One of the wooden bars is installed on each of the metal bottom bars. The metal frame is installed at both ends of the multiple wooden bars.
[0005] The metal frame includes two parallel lower horizontal metal bars, two lower vertical bars, two parallel upper horizontal metal bars, two upper vertical bars and multiple vertical screw rods. The two lower horizontal metal bars are connected and fixed by the two lower vertical bars. The two upper horizontal metal bars are connected and fixed by the two upper vertical bars. For the upper horizontal metal bar and the lower horizontal metal bar on the same side, they are respectively connected and fixed using vertical screw rods and nuts. The lower horizontal metal bar, the wooden bar and the metal bottom bar are fixed by bolts. The wooden clamping plate mechanism includes multiple upper ring wooden boards, several upper wooden blocks, multiple lower ring wooden boards and several lower wooden blocks. Multiple upper wooden blocks are placed on each of the upper ring wooden boards. Multiple lower wooden blocks are placed below each of the lower ring wooden boards. Each upper ring wooden board faces a lower ring wooden board, and each set of the facing upper ring wooden board and lower ring wooden board is used to clamp a set of coils. When clamping, the upper wooden blocks abut against the lower surface of the upper horizontal metal bar, and the lower wooden blocks abut against the upper surface of the lower horizontal metal bar. Both ends of each of the wooden pressing plates are fixed to the two upper horizontal metal bars. The wooden pressing plates are used to press on the top surface of the iron core. The middle part of the wooden bar is used to support the bottom surface of the iron core.
[0006] By adopting the above technical solution, the fixing device not only uses a metal fixing structure, but also uses wooden strips and wooden pressing plates to press the top and bottom surfaces of the iron core, and uses a wooden clamping plate mechanism to clamp both ends of the coil. Since the wooden material has a certain effect of buffering vibration, and the hardness and wear resistance of the wooden material are significantly less than those of the iron core and the coil, when using this fixing device to fix the iron core and the coil, the noise is small during transportation, and the wear on the iron core and the coil is small.
[0007] A preferred solution of the fixing device for the iron core and the coil is that the fixing device includes three mutually parallel and equidistant wooden pressing plates.
[0008] By adopting the above technical solution, the three wooden pressing plates can be respectively pressed on the left, middle, and right positions of the top surface of the iron core, and the fixing effect is good.
[0009] A preferred solution of the fixing device for the iron core and the coil is that the wooden pressing plate has an arched bottom surface, which is adapted to the shape of the top surface of the iron core.
[0010] By adopting the above technical solution, the fixing and shock-absorbing effects of the wooden pressing plate on the iron core are better.
[0011] A preferred solution of the fixing device for the iron core and the coil is that the fixing device has two metal bottom strips, two wooden strips, and three groups of wooden clamping plate mechanisms. The two wooden strips are used to support both ends of the bottom surface of the iron core. The three groups of wooden clamping plate mechanisms are used to clamp the three groups of coils wound on the iron core.
[0012] By adopting the above technical solution, only the wooden strips and the wooden clamping plate mechanisms are used to fix the iron core, and the fixing and shock-absorbing effects on the iron core are good. Compared with the method of fixing the iron core with a metal structure, this method is not easy to wear the iron core.
[0013] A preferred solution of the fixing device for the iron core and the coil is that the metal frame includes eight vertical screw rods, four of which connect the upper horizontal metal strip and the lower horizontal metal strip on the same side, and the other four vertical metal strips connect the upper horizontal metal strip and the lower horizontal metal strip on the other side.
[0014] By adopting the above technical solution, the distance between the upper horizontal metal strip and the lower horizontal metal strip can be adjusted, so that the distance between the upper ring wooden board and the lower ring wooden board can be adjusted, so as to adapt to clamp the upper and lower ends of the coil, and play a role in fixing and shock absorption.
[0015] A preferred solution of the fixing device for the iron core and the coil is that the position of each side of the vertical screw rods is set such that one vertical screw rod is arranged between every two adjacent coils, and one vertical screw rod is arranged outside each of the two outer coils.
[0016] By adopting the above technical solution, the distance between individual clamping mechanisms can be adjusted through the vertical screw rods, and the clamping and fixing effect of the coils at this position can be adjusted individually. Thus, each coil can be well fixed by the multiple vertical screw rods.
[0017] A preferred solution for the fixing device of the iron core and coils is that the fixing device further includes a plurality of flexible cardboard sheets. Each cardboard sheet is used to wrap the iron core section wound inside a group of coils. The upper end of the cardboard sheet protrudes upward with a plurality of upper paper blocks, and the lower end of the cardboard sheet protrudes downward with a plurality of lower paper blocks. The plurality of upper paper blocks are padded between the iron core and the upper cross metal bar. The plurality of lower paper blocks are padded between the iron core and the lower cross metal bar.
[0018] By adopting the above technical solution, the side surface of the iron core and the inner side surface of the coil are separated by the cardboard sheet, reducing mutual friction and wear. The upper and lower ends of the iron core are also separated from the metal frame, playing a protective role.
[0019] A preferred solution for the fixing device of the iron core and coils is that both the lower cross metal bar and the upper cross metal bar are U-shaped steels. The notch of the U-shaped steel faces the outer side. The upper surface of each U-shaped steel has a plurality of vertical steel plates, and both ends of each wooden pressing plate are connected to the vertical steel plates by screws.
[0020] By adopting the above technical solution, the inner side of the U-shaped steel contacts the lower paper block or the upper paper block of the cardboard sheet, which is used for positioning and fixing the iron core. The contact area is large and the structure is firm.
[0021] In summary, the fixing device of the iron core and coils of the present application has the following beneficial effects: The fixing device not only uses a metal fixing structure, but also uses wooden strips and wooden pressing plates to press the top and bottom surfaces of the iron core, and uses a wooden clamping plate mechanism to clamp both ends of the coil. Since the wooden structure has a certain deformable shape, that is, it has a certain buffering and vibration effect, and since the hardness and wear resistance of the wooden structure are significantly less than those of the iron core and the coils, when using this fixing device to fix the iron core and the coils, the noise is small and the wear on the iron core and the coils is small during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a combined structure diagram of the fixing device fixing the iron core and the coils.
[0023] Figure 2 For Figure 1 The structure diagram after hiding the coils.
[0024] Figure 3 For Figure 2 Another perspective view.
[0025] Figure 4 For Figure 2 The structure diagram showing the upper paper blocks and the lower paper blocks of the cardboard sheet after hiding some components.
[0026] Reference Signs: 1, metal bottom strip; 2, wooden strip; 3, metal frame; 4, wooden splint mechanism; 5, wooden pressing plate; 6, iron core; 7, coil; 31, lower horizontal metal strip; 32, lower vertical rod; 33, upper horizontal metal strip; 34, upper vertical rod; 35, vertical screw rod; 41, upper ring wooden board; 42, upper wooden block; 43, lower ring wooden board; 44, lower wooden block; 8, cardboard; 81, upper paper block; 82, lower paper block; 331, vertical steel plate. Detailed Embodiment
[0027] The present application will be further described below with reference to the accompanying drawings.
[0028] As Figure 1 , a fixing device for an iron core and a coil, comprising a plurality of metal bottom strips 1, a plurality of wooden strips 2, a metal frame 3, a plurality of groups of wooden splint mechanisms 4 and a plurality of wooden pressing plates 5. One of the wooden strips 2 is installed on each of the metal bottom strips 1. The metal frame 3 is installed at both ends of the plurality of wooden strips 2. The wooden pressing plate 5 is installed on the top of the metal frame 3.
[0029] Taking a three-rod iron core 6 as an example, three groups of vertical coils 7 are respectively wound. Each group of coils 7 is further divided into a separated primary coil 7 and a secondary coil 7. For example, the upper part is the primary coil 7 and the lower part is the secondary coil 7 for voltage transformation. Then, the fixing device has three groups of wooden splint mechanisms 4 for clamping and fixing the three groups of coils 7.
[0030] The metal frame 3 includes two parallel lower horizontal metal strips 31, two lower vertical rods 32, two parallel upper horizontal metal strips 33, two upper vertical rods 34 and a plurality of vertical screw rods 35. The two lower horizontal metal strips 31 are connected and fixed by the two lower vertical rods 32. The two upper horizontal metal strips 33 are connected and fixed by the two upper vertical rods 34. The lower vertical rod 32 and the upper vertical rod 34 can be screw rods, and the inner distance is adjusted and locked by nuts, that is, the distance between the two lower horizontal metal strips 31 and the distance between the two upper horizontal metal strips 33 are adjusted to adapt to clamping the iron core 6 from the side.
[0031] For the upper horizontal metal strip 33 and the lower horizontal metal strip 31 on the same side, the vertical screw rod 35 and the nut are respectively used for connection and fixation, that is, the distance between the upper horizontal metal strip 33 and the lower horizontal metal strip 31 can be adjusted to adapt to clamping the coil 7. The lower horizontal metal strip 31, the wooden strip 2 and the metal bottom strip 1 are fixed by bolts. The wooden strip 2 is used to support the bottom of the iron core 6 and has a shock-absorbing effect.
[0032] As Figure 2, the wooden clamping plate mechanism 4 includes a plurality of upper ring wooden plates 41, several upper wooden blocks 42, a plurality of lower ring wooden plates 43 and several lower wooden blocks 44. A plurality of upper wooden blocks 42 are placed on each upper ring wooden plate 41. A plurality of lower wooden blocks 44 are placed below each lower ring wooden plate 43. Each upper ring wooden plate 41 faces a lower ring wooden plate 43, and each set of the opposed upper ring wooden plate 41 and lower ring wooden plate 43 is used to clamp a set of coils 7. When clamping the coils 7, the upper wooden blocks 42 abut against the lower surface of the upper horizontal metal strip 33, and the lower wooden blocks 44 abut against the upper surface of the lower horizontal metal strip 31, clamping and protecting the coils 7, and having a shock absorption effect compared with the direct clamping method of the steel structure.
[0033] Both ends of each wooden pressing plate 5 are fixed to two upper horizontal metal strips 33, and the wooden pressing plate 5 is perpendicular to the upper horizontal metal strips 33. The wooden pressing plate 5 is used to press on the top surface of the iron core 6. The middle part of the wooden strip 2 is used to support the bottom surface of the iron core 6.
[0034] The above fixing device not only constructs a metal outer frame structure, but also uses the wooden strip 2 and the wooden pressing plate 5 to press the top and bottom surfaces of the iron core 6, and the wooden clamping plate mechanism 4 clamps the upper and lower ends of the coil 7, so that the fixing device has a certain effect of buffering vibration. Since the hardness and wear resistance of the wooden structure are significantly less than those of the iron core 6 and the coil 7, when using this fixing device to fix the iron core 6 and the coil 7, the noise generated during transportation is small, and the wear on the iron core 6 and the coil 7 is small.
[0035] Since the top of the iron core 6 is relatively long, it is possible to set that the fixing device includes three mutually parallel and equidistant wooden pressing plates 5, and the three wooden pressing plates 5 can respectively press on the left, middle and right positions of the top surface of the iron core 6 to enhance the fixing effect.
[0036] Such as Figure 3 , a preferred structure of the wooden pressing plate 5 is that the wooden pressing plate 5 has an arched bottom surface, and is adapted to wrap the iron core 6 with an arched top surface (the middle is high and both sides are low) in cross section, then the wooden pressing plate 5 of this structure has a better fixing and shock absorption effect on the iron core 6.
[0037] In order to simplify the fixing device while maintaining a good fixing effect on the iron core 6 and the coil 7, it is designed that the fixing device has two metal bottom strips 1 and two wooden strips 2, that is, the entire metal frame 3 and the iron core 6 can be carried. In order to adapt to the product with three-rod iron core 6 respectively wound with three groups of vertical coils 7, it is designed that the fixing device includes three groups of wooden clamping plate mechanisms 4. The two wooden strips 2 are used to support both ends of the bottom surface of the iron core 6. The three groups of wooden clamping plate mechanisms 4 are used to clamp the three groups of coils 7 wound on the iron core 6.
[0038] The above fixing device only uses the wooden strip 2 and the wooden clamping plate mechanism 4 to fix the iron core 6, has a good fixing and shock absorption effect on the iron core 6, and is not easy to wear the iron core 6 compared with the method of fixing the iron core 6 with a metal structure.
[0039] In order to adapt to the product with three-rod iron cores 6 respectively wound with three groups of vertical coils 7, it is designed that the metal frame 3 includes eight vertical screw rods 35, among which four vertical screw rods 35 connect the upper horizontal metal strip 33 and the lower horizontal metal strip 31 on the same side, and the other four vertical metal strips connect the upper horizontal metal strip 33 and the lower horizontal metal strip 31 on the other side. The distance between the upper horizontal metal strip 33 and the lower horizontal metal strip 31 can be adjusted, so that the distance between the upper ring wooden board 41 and the lower ring wooden board 43 can be adjusted, so as to adapt to clamping the upper and lower ends of the coil 7, playing a role of fixing and shock absorption.
[0040] The positions of the vertical screw rods 35 on each side are set such that one vertical screw rod 35 is arranged between every two adjacent coils 7, and one vertical screw rod 35 is arranged outside each of the two outer coils 7. The distance of a single clamping mechanism can be adjusted through the vertical screw rod 35, and the clamping and fixing effect of the coil 7 at this place can be adjusted separately, so that the multiple vertical screw rods 35 can well fix each coil 7.
[0041] Such as Figure 4 , in order to further strengthen the protection of the side surface of the iron core 6 and reduce the friction between the side surface of the iron core 6 and the metal frame 3, it is designed that the fixing device further includes a plurality of flexible cardboard sheets 8, and each cardboard sheet 8 is used to wrap the iron core 6 section surrounded by a group of coils 7. The upper end of the cardboard sheet 8 protrudes upward with a plurality of upper paper blocks 81, and the lower end of the cardboard sheet 8 protrudes downward with a plurality of lower paper blocks 82. A plurality of upper paper blocks 81 are padded between the iron core 6 and the upper horizontal metal strip 33. A plurality of lower paper blocks 82 are padded between the iron core 6 and the lower horizontal metal strip 31. The side surface of the iron core 6 and the inner side surface of the coil 7 are separated by the cardboard sheet 8, reducing mutual friction and wear. The upper end and the lower end of the iron core 6 are also separated from the metal frame 3, playing a protective role.
[0042] Such as Figure 1 , optionally, both the lower horizontal metal strip 31 and the upper horizontal metal strip 33 are U-shaped steels. The notch of the U-shaped steel faces the outer side, and the upper surface of each U-shaped steel has a plurality of vertical steel plates 331, and both ends of each wooden pressing plate 5 are connected to the vertical steel plates 331 by screws. The inner side of the U-shaped steel contacts the lower paper block 82 or the upper paper block 81 of the cardboard sheet 8, which is used for limiting and fixing the iron core 6, with a large contact area and a firm structure.
[0043] The above fixing device for the iron core and the coil uses the wooden strips 2 and the wooden pressing plates 5 to press the top surface and the bottom surface of the iron core 6, and uses the wooden clamping plate mechanism 4 to clamp the upper and lower ends of the coil 7, with firm fixing and a certain effect of buffering vibration. During transportation, the noise is small, and the wear of the iron core 6 and the coil 7 is small.
[0044] The above are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, various equivalent replacements and modifications can be made according to the above description, and these replacements and modifications should be covered within the protection scope of the present application.
Claims
1. A fixing device for an iron core and a coil, characterized in that: It comprises a plurality of metal bottom bars (1), a plurality of wooden bars (2), a metal frame (3), a plurality of wooden clamping plate mechanisms (4) and a plurality of wooden pressing plates (5); One wooden strip (2) is mounted on each of the metal bottom strips (1); and the metal frame (3) is mounted on both ends of a plurality of the wooden strips (2); The metal frame (3) comprises two parallel lower transverse metal bars (31), two lower longitudinal bars (32), two parallel upper transverse metal bars (33), two upper longitudinal bars (34) and a plurality of vertical screws (35); the two lower transverse metal bars (31) are connected and fixed by two lower longitudinal bars (32); the two upper transverse metal bars (33) are connected and fixed by two upper longitudinal bars (34); the upper transverse metal bars (33) and the lower transverse metal bars (31) on the same side are connected and fixed by vertical screws (35) and nuts respectively; the lower transverse metal bars (31), the wooden bars (2) and the metal bottom bars (1) are fixed by bolts; The wooden clamping plate mechanism (4) comprises a plurality of upper ring wooden boards (41), a plurality of upper wooden blocks (42), a plurality of lower ring wooden boards (43) and a plurality of lower wooden blocks (44); a plurality of upper wooden blocks (42) are placed on each upper ring wooden board (41); a plurality of lower wooden blocks (44) are placed below each lower ring wooden board (43); each upper ring wooden board (41) faces a lower ring wooden board (43); each set of upper ring wooden boards (41) and lower ring wooden boards (43) facing each other are used to clamp a set of coils (7); when clamping, the upper wooden blocks (42) abut against the lower surface of the upper horizontal metal strip (33), and the lower wooden blocks (44) abut against the upper surface of the lower horizontal metal strip (31); The two ends of each wooden pressing plate (5) are fixed to two upper horizontal metal strips (33); the wooden pressing plate (5) is used to press on the top surface of the iron core (6); and the middle part of the wooden strip (2) is used to support the bottom surface of the iron core (6).
2. The fixing device for the core and the coil according to claim 1, characterized in that: The fixing device comprises three wooden pressing plates (5) which are parallel and equidistant from each other.
3. The fixing device for the core and the coil according to claim 1 or 2, characterized in that: The wooden pressing plate (5) has an arched bottom surface, which matches the shape of the top surface of the iron core (6).
4. The fixing device for the core and the coil according to claim 1, characterized in that: The fixing device comprises two metal bottom bars (1), two wooden bars (2) and three sets of wooden clamping plate mechanisms (4); the two wooden bars (2) are used to support the two ends of the bottom surface of the iron core (6); and the three sets of wooden clamping plate mechanisms (4) are used to clamp the three sets of coils (7) wound on the iron core (6).
5. The fixing device for the core and the coil according to claim 1, characterized in that: The metal frame (3) comprises eight vertical screws (35), of which four vertical screws (35) connect the upper horizontal metal bar (33) and the lower horizontal metal bar (31) on the same side, and the other four vertical metal bars connect the upper horizontal metal bar (33) and the lower horizontal metal bar (31) on the other side.
6. The fixing device for the core and the coil according to claim 5, characterized in that: The positions of the vertical screw rods (35) on each side are arranged such that a vertical screw rod (35) is arranged between each two adjacent coils (7), and a vertical screw rod (35) is arranged outside the coils (7) at the two outer ends.
7. The fixing device for the core and the coil according to claim 1, characterized in that: The fixing device further comprises a plurality of flexible paperboards (8), each of which is used to wrap a segment of the iron core (6) wrapped inside a group of coils (7); a plurality of upper paper blocks (81) protrude upward from the upper end of the paperboard (8), and a plurality of lower paper blocks (82) protrude downward from the lower end of the paperboard (8); the plurality of upper paper blocks (81) are padded between the iron core (6) and the upper horizontal metal strip (33); and the plurality of lower paper blocks (82) are padded between the iron core (6) and the lower horizontal metal strip (31).
8. The fixing device for the core and the coil according to claim 7, characterized in that: The lower horizontal metal strip (31) and the upper horizontal metal strip (33) are both U-shaped steels; the notches of the U-shaped steels face the outer sides; the upper surface of each U-shaped steel has a plurality of vertical steel plates (331); and both ends of each wooden pressing plate (5) are connected to the vertical steel plates (331) by screws.