Dry-type transformer with slotted pull plate

Abstract

The utility model discloses a dry-type transformer with a slotted pull plate, and belongs to the technical field of transformers, the dry-type transformer comprises an upper clamping piece, hoisting rings are fixedly welded to the two sides of the outer wall of the upper surface of the upper clamping piece, the upper clamping piece and an upper attaching groove are used for attaching the upper end of an attaching plate, and the attaching plate and the upper attaching groove are installed through fixing holes. The lower end of an attaching plate is attached through a lower clamping piece and a lower attaching groove, and fixed installation is conducted through a fixing hole, so that welding is not needed, the structure is attractive, the complexity in the installation process is reduced, heat generated by the pulling plate can be guided through the pulling plate and a transverse groove, and the installation angle of the pulling plate is adjusted; the problem of local overheating is effectively reduced, so that eddy current loss is reduced, the magnetic conduction efficiency is improved, the overall strength can be improved through the reinforcing strips, heat generated by the pulling plate can be discharged through the heat dissipation holes, and potential safety hazards of faults of the transformer are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and in particular to a dry-type transformer with a slotted pull plate. Background Art

[0002] In the patent with the published authorization announcement number CN218826597U, the utility model provides a dry-type transformer with a slotted pull plate, including a long strip-shaped pull rod body; the surface of the pull rod body is provided with a plurality of vertical grooves parallel to its length direction, and is close to the iron core of the dry-type transformer when in use, so as to limit the eddy current loss generated on the pull rod body. This scheme can avoid the formation of a large area of ​​eddy current loss in the width direction of the pull rod body by providing vertical grooves on the surface of the pull rod body; the eddy current is confined to a plurality of narrow sheet structures, and when the magnetic flux passes through the narrow cross-sections of these sheet structures, only a plurality of small net electromotive force loops are formed, and the length of the formed loop is relatively large, so that the resistance of the loop is also relatively large, thereby ensuring that the eddy current is greatly weakened and the eddy current loss is reduced;

[0003] Transformer is a device that uses the principle of electromagnetic induction to convert one level of voltage and current into another level of voltage and current of the same frequency and transmit electric energy. Transformer is an important device in power transmission and transformation equipment. It plays an extremely critical role in the power grid and is the main equipment to ensure the power consumption of social production. The structure and material of the transformer directly affect the quality and safety of power supply. There are many types of transformers, which can be classified according to cooling method, moisture-proof method, purpose, voltage regulation method, cooling medium and other methods; among them, dry-type transformers, liquid (oil) immersed transformers, etc. are classified according to cooling medium.

[0004] During the use of the above device, the pull plate is likely to cause the core temperature to rise during installation and use, the overall heat dissipation is poor, the heat dissipation efficiency is low, and there is a safety hazard of transformer failure. In addition, due to the use of welding technology, the traditional pull plate is likely to lead to a complex structure and large size. At the same time, it is difficult to adjust after installation, and thus it is impossible to achieve the best use effect.

[0005] For this purpose, the present application proposes a dry-type transformer with a slotted pull plate. Utility Model Content

[0006] In view of the shortcomings of the prior art, the present application provides a dry-type transformer with a slotted pull plate, which overcomes the shortcomings of the prior art and aims to solve the problem that the existing pull plates are prone to cause the core temperature to rise during installation and use, the overall heat dissipation is poor, the heat dissipation efficiency is low, and there is a safety hazard of transformer failure. In addition, due to the use of welding technology, traditional pull plates are prone to complex structures and large sizes. At the same time, they are difficult to adjust after installation, thus failing to achieve the best use effect.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a dry-type transformer with a slotted pull plate, comprising an upper clamp, wherein lifting rings are fixedly welded on both sides of the outer wall of the upper surface of the upper clamp, an upper fitting groove is provided on the outer wall of the upper clamp, the outer wall of the upper fitting groove is fitted with the pull plate assembly, the outer wall of the lower end of the pull plate assembly is fitted on the outer wall of the lower clamp, and the outer wall of the lower clamp is provided with a lower fitting groove.

[0008] The adoption of the above technical solution is conducive to fitting and fixing the pull plate.

[0009] As a preferred technical solution of the present application, the upper clamp and the lower clamp are specifically made of carbon steel components, and the cross-section of one side of the upper clamp and the lower clamp is T-shaped.

[0010] The adoption of the above technical solution is helpful to improve the stability of the fixing of the tension plate.

[0011] As a preferred technical solution of the present application, the outer walls of the upper bonding groove and the lower bonding groove are coated with insulating paint, and the depth of the upper bonding groove and the lower bonding groove is ≥3mm.

[0012] The adoption of the above technical solution is conducive to fixing the pull plate and reducing the complexity of the welding process.

[0013] As a preferred technical solution of the present application, the fixed protection component includes a bonding plate, and fixing holes are opened on the upper and lower sides of the outer wall of the bonding plate, and a pull plate component is bonded to the outer wall of the bonding plate.

[0014] The adoption of the above technical solution is beneficial to improving the heat dissipation and protection of the tension plate.

[0015] As a preferred technical solution of the present application, the bonding plate is specifically made of stainless steel components, and the outer wall of the bonding plate is coated with insulating paint.

[0016] By adopting the above technical solution, the protection of the tension plate is improved and the installation strength is improved.

[0017] As a preferred technical solution of the present application, the bonding plate is bonded and installed on the inner wall of the upper bonding groove through a fixing hole, and the thickness of the bonding plate is ≥1 mm.

[0018] The adoption of the above technical solution is beneficial to improving the fixation of the tension plate and reducing the complexity of the welding process.

[0019] As a preferred technical solution of the present application, the pull plate assembly includes a pull plate, a transverse groove is opened on the outer wall of the pull plate, a reinforcement strip is adhered to the outer wall of the pull plate, heat dissipation holes are opened on both sides of the pull plate, the outer wall of the pull plate is fixedly adhered to the outer wall of the adhered plate, and the thickness of the pull plate is ≥2mm.

[0020] The adoption of the above technical solution is beneficial to reducing heat and improving working efficiency, thereby reducing eddy current losses.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The present application provides structures such as an upper clamp, a lifting ring, an upper bonding groove, a bonding plate, a fixing hole, a lower clamp and a lower bonding groove. The upper clamp and the upper bonding groove are used to bond the upper end of the bonding plate, and the fixing hole is used to install the bonding plate and the upper bonding groove, so as to facilitate the adjustment of the installation angle of the pull plate. The lower end of the bonding plate is bonded by the lower clamp and the lower bonding groove, and fixed and installed by the fixing hole, so that no welding is required, the structure is more beautiful, and the complexity of installation is reduced.

[0023] The present application provides structures such as a pull plate, a transverse groove, a reinforcement strip and a heat dissipation hole. The pull plate and the transverse groove can be used to conduct the heat generated by the pull plate, effectively reducing the occurrence of local overheating problems, thereby reducing eddy current losses and improving magnetic conductivity efficiency. The overall strength can be improved by the reinforcement strip, and the heat generated by the pull plate can be discharged by the heat dissipation holes, thereby reducing the occurrence of safety hazards of transformer failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the fixed protection component;

[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the center pull plate assembly.

[0027] Description of reference numerals:

[0028] 1. Upper clamp; 2. Lifting ring; 3. Upper fitting groove; 4. Fixed protection assembly; 41. Fitting plate; 42. Fixing hole; 43. Pull plate assembly; 431. Pull plate; 432. Horizontal groove; 433. Reinforcement strip; 434. Heat dissipation hole; 5. Lower clamp; 6. Lower fitting groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1-3, a dry-type transformer with a slotted pull plate, comprising an upper clamp 1, a lifting ring 2 is fixedly welded on both sides of the outer wall of the upper surface of the upper clamp 1, an upper fitting groove 3 is provided on the outer wall of the upper clamp 1, the outer wall of the upper fitting groove 3 fits with the pull plate assembly 43, the outer wall of the lower end of the pull plate assembly 43 fits on the outer wall of the lower clamp 5, and a lower fitting groove 6 is provided on the outer wall of the lower clamp, which is conducive to fitting and fixing the pull plate 431, the upper clamp 1 and the lower clamp 5 are specifically made of carbon steel components, and the cross-sectional shape of one side of the upper clamp 1 and the lower clamp 5 is T-shaped, which is conducive to improving the stability of fixing the pull plate 431, the outer walls of the upper fitting groove 3 and the lower fitting groove 6 are coated with insulating paint, and the depth of the upper fitting groove 3 and the lower fitting groove 6 is ≥3mm, which is conducive to fixing the pull plate 431 and reducing the cumbersomeness of the welding process. A fixed protection component 4 is arranged between the upper clamp 1 and the lower clamp 5.

[0031] For details, please refer to Figure 1 and Figure 2 The fixed protection component 4 includes a bonding plate 41, and fixing holes 42 are opened on the upper and lower sides of the outer wall of the bonding plate 41. The outer wall of the bonding plate 41 is bonded with a pulling plate component 43, which is beneficial to improving the heat dissipation and protection of the pulling plate 431. The bonding plate 41 is specifically made of stainless steel components, and the outer wall of the bonding plate 41 is coated with insulating paint to improve the protection of the pulling plate 431 and the installation strength. The bonding plate 41 is bonded to the inner wall of the upper bonding groove 3 through the fixing hole 42. The thickness of the bonding plate 41 is ≥1mm, which is beneficial to improving the fixation of the pulling plate 431 and reducing the complexity of the welding process.

[0032] For details, please refer to Figure 1 and Figure 3 The pull plate assembly 43 includes a pull plate 431, a transverse groove 432 is opened on the outer wall of the pull plate 431, a reinforcing strip 433 is attached to the outer wall of the pull plate 431, heat dissipation holes 434 are opened on both sides of the pull plate 431, the outer wall of the pull plate 431 is fixedly attached to the outer wall of the attached plate 41, and the thickness of the pull plate 431 is ≥2mm, which is conducive to reducing heat and improving work efficiency, thereby reducing eddy current losses.

[0033] Working principle: The upper end of the bonding plate 41 is bonded by the upper clamp 1 and the upper bonding groove 3, and the bonding plate 41 is installed with the upper bonding groove 3 by using the fixing hole 42, so as to facilitate the adjustment of the installation angle of the pull plate 431, and the lower end of the bonding plate 41 is bonded by the lower clamp 5 and the lower bonding groove 6, and fixedly installed by using the fixing hole 42, so as to achieve no welding, a more beautiful structure, and reduce the complexity of installation, and the lifting ring 2 welded on the upper surface of the upper clamp 1 is convenient for lifting, and the pull plate 431 and the transverse groove 432 can be used to guide the heat generated by the pull plate 431, which effectively reduces the occurrence of local overheating problems, thereby reducing eddy current losses and improving magnetic conductivity efficiency. The overall strength can be improved by the reinforcing strip 433, and the heat generated by the pull plate can be discharged by using the heat dissipation hole 434, thereby reducing the occurrence of safety hazards of transformer failure.

[0034] Finally, it should be noted that in the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a transformer core connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A dry-type transformer with a slotted pull plate, comprising an upper clamp (1), characterized in that: Lifting rings (2) are fixedly welded on both sides of the outer wall of the upper surface of the upper clamp (1); an upper fitting groove (3) is provided on the outer wall of the upper clamp (1); the outer wall of the upper fitting groove (3) fits with the pull plate assembly (43); the outer wall of the lower end of the pull plate assembly (43) fits with the outer wall of the lower clamp (5); a lower fitting groove (6) is provided on the outer wall of the lower clamp (5); and a fixed protective assembly (4) is provided between the upper clamp (1) and the lower clamp (5).

2. The dry-type transformer with slotted pull plates according to claim 1, characterized in that: The upper clamping piece (1) and the lower clamping piece (5) are specifically made of carbon steel components, and the cross-section of one side of the upper clamping piece (1) and the lower clamping piece (5) is in a T-shape.

3. The dry-type transformer with slotted pull plates according to claim 2, characterized in that: The outer walls of the upper bonding groove (3) and the lower bonding groove (6) are coated with insulating paint, and the depth of the upper bonding groove (3) and the lower bonding groove (6) is ≥3 mm.

4. The dry-type transformer with slotted pull plates according to claim 3 is characterized in that: The fixed protection component (4) comprises a bonding plate (41), the outer wall of the bonding plate (41) is provided with fixing holes (42) at the upper and lower sides, and the outer wall of the bonding plate (41) is bonded with a pull plate component (43).

5. The dry-type transformer with slotted pull plates according to claim 4, characterized in that: The bonding plate (41) is specifically made of a stainless steel component, and the outer wall of the bonding plate (41) is coated with insulating paint.

6. The dry-type transformer with slotted pull plates according to claim 4, characterized in that: The laminating plate (41) is mounted on the inner wall of the upper laminating groove (3) through the fixing hole (42), and the laminating plate (41) has a thickness of ≥1 mm.

7. The dry-type transformer with slotted pull plates according to claim 4, characterized in that: The pull plate assembly (43) comprises a pull plate (431), the outer wall of the pull plate (431) is provided with a transverse groove (432), the outer wall of the pull plate (431) is bonded with a reinforcing strip (433), both sides of the pull plate (431) are provided with heat dissipation holes (434), the outer wall of the pull plate (431) is fixedly bonded to the outer wall of the bonding plate (41), and the thickness of the pull plate (431) is ≥2 mm.

Images