Transformer clamp copper shielding structure

Abstract

The utility model discloses a transformer clamping piece copper shielding structure which comprises a copper shield, a clamping piece and an insulating material, and the insulating material is arranged between the copper shield and the clamping piece, so that direct electrical contact between the copper shield and the clamping piece is effectively isolated, potential safety hazards caused by accidental short circuit or electric leakage are prevented, and the electrical insulation performance of equipment is enhanced. The copper shield and the clamping piece are detachably connected, so that the copper shield and the clamping piece are simple and rapid to mount and dismount, and the flexibility and the applicability of the equipment are improved; one end of the copper shield is firmly connected with the grounding wire, a good grounding effect is ensured, the grounding device is simple in structure, can be suitable for various electrical devices and systems, remarkably improves safety, maintainability, reliability and adaptability of the electrical system, is an indispensable part in transformer design, and is suitable for popularization and application. The method is of great significance in improving the performance and reliability of the transformer.

Description

Technical Field

[0001] The utility model belongs to the field of transformer equipment, and in particular relates to a transformer clamp copper shielding structure. Background Art

[0002] As electricity demand continues to grow, transformers, as core equipment in power systems, are seeing their capacity increase to meet the growing demand. However, this increase in transformer capacity does not come without a price. One of the most significant issues is the increased magnetic flux leakage. Magnetic flux leakage occurs when the transformer's electromagnetic field is not completely enclosed during operation, causing some magnetic lines of force to pass through the transformer's core components, particularly components like clamps, resulting in magnetic flux leakage.

[0003] This magnetic flux leakage phenomenon becomes increasingly severe as transformer capacity increases. It not only increases hysteresis and eddy current losses in the core components (especially the clamps), but the accumulated losses also cause the clamps to heat up over time. Excessive clamp temperature rise not only affects the transformer's operating efficiency, but also shortens its service life and may even pose a safety hazard.

[0004] To effectively reduce the temperature rise of the clamps, engineers have been seeking solutions. One common approach is to use non-magnetic steel to produce the clamps. Non-magnetic steel is a special alloy material with extremely low magnetic permeability and excellent mechanical properties. It can significantly reduce the hysteresis loss and eddy current loss of the clamps in magnetic fields, thereby effectively reducing the temperature rise of the clamps. However, the production cost of non-magnetic steel is relatively high, which undoubtedly increases the overall production cost of the transformer. In today's increasingly competitive power market, balancing transformer performance and cost has become a pressing issue. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above problems and provide a transformer clamp copper shielding structure, which can be applied to all transformers that need to adopt a shielding structure to reduce the temperature rise of structural parts, and has a simple structure and avoids increasing production costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a transformer clamp copper shielding structure, comprising a copper shield and a clamp, wherein the copper shield and the clamp are detachably connected, an insulating material is arranged between the copper shield and the clamp, and one end of the copper shield is connected to a grounding wire.

[0008] A further improvement of the present invention is that a plurality of through holes are provided on the copper shield, and threaded holes are provided at positions symmetrical to the clamp and the copper shield.

[0009] A further improvement of the present invention is that the threaded hole on the clamp is a blind hole.

[0010] A further improvement of the present invention is that the copper shield is connected to the clamp via a screw.

[0011] A further improvement of the present invention is that one end of the screw is screwed into the threaded hole on the clamp, and the other end passes through the through hole on the copper shield.

[0012] A further improvement of the present invention is that a nut is sleeved on one end of the screw rod passing through the through hole on the copper shield.

[0013] A further improvement of the present invention is that the screw and nut are made of an insulating screw and an insulating nut respectively.

[0014] A further improvement of the present invention is that the copper shield is an L-shaped structure.

[0015] A further improvement of the present invention is that the insulating material can be configured as insulating cardboard, phenolic resin or laminated wood.

[0016] A further improvement of the present invention is that the grounding wire is connected to the copper shield by welding or prying with blackened bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model effectively isolates the direct electrical contact between the copper shield and the clamp by arranging insulating material between the copper shield and the clamp, thereby preventing safety hazards caused by accidental short circuit or leakage and enhancing the electrical insulation performance of the equipment; the copper shield and the clamp are arranged to be detachably connected, making the installation and removal of the copper shield and the clamp simple and quick, increasing the flexibility and applicability of the equipment; one end of the copper shield is firmly connected to the grounding wire, ensuring a good grounding effect. The utility model has a simple structure and can be applied to a variety of electrical equipment and systems, significantly improving the safety, maintainability, reliability and adaptability of the electrical system.

[0019] Furthermore, the copper shield and the clamp are connected by screws. The screw connection allows the copper shield and the clamp to be easily disassembled and reassembled when necessary, which facilitates maintenance, inspection and upgrading of the equipment. By tightening the screws, the copper shield and the clamp are tightly combined, which can ensure the stability and reliability of the connection.

[0020] Furthermore, the screw and nut are made of an insulating screw and insulating nut respectively, which can effectively prevent current from being conducted through the screw and nut, ensure electrical safety, reduce local discharge caused by current leakage, protect equipment from damage, and extend the service life of the equipment. At the same time, it has high corrosion resistance and can maintain stable performance in humid, acidic or alkaline environments, reducing damage caused by corrosion.

[0021] Furthermore, the grounding wire is connected to the copper shield by welding or blackened bolts. Welding grounding can ensure smooth current transmission and stable and reliable grounding system, while blackened bolt prying can meet the advantages of strong anti-rust ability, low cost and high dimensional accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are merely illustrative and are used to facilitate understanding of the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention.

[0023] Figure 1 This is the transformer clamp copper shielding structure of the utility model;

[0024] Figure 2 This is a detailed diagram of the copper shielding structure of the present utility model;

[0025] Figure 3 This is a diagram of the welding structure of the clamp and copper shield of the present utility model.

[0026] Among them: 1. Copper shield; 2. Insulation material; 3. Clamp; 4. Screw; 5. Ground wire; 6. Nut. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] The present invention is described in further detail below with reference to the accompanying drawings:

[0034] Example 1:

[0035] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a transformer clamp copper shielding structure, including a copper shield 1 and a clamp 3. The copper shield 1 is an L-shaped structure. Insulating material is arranged between the copper shield 1 and the clamp 3. The copper shield 1 can be used to reduce eddy current loss and electromagnetic radiation caused by leakage magnetic flux, while protecting the surrounding environment and equipment from electromagnetic interference, improving energy utilization efficiency, and protecting the internal components of the transformer from the influence of electromagnetic fields; the clamp 3 serves as a supporting and fixing structure. The clamp 3 fastens the transformer core and the copper shield 1 together, can provide strong support and fixation, ensure the stable operation of the transformer core and the copper shield 1, facilitate installation and maintenance, and ensure the stability and durability of the structure.

[0036] In this embodiment, the insulating material 2 can be set as insulating cardboard, phenolic resin or laminated wood. The insulating material 2 is mainly used to provide electrical isolation to prevent current from flowing directly from the copper shield 1 to the clamp 3 or other metal parts, thereby ensuring the safe operation of the transformer.

[0037] In this embodiment, several through holes are opened on the copper shield 1, and threaded holes are opened on the clamp 3 at symmetrical positions with the copper shield 1, wherein the threaded holes on the clamp 3 are blind holes. The blind hole design makes the structure of the clamp 3 more compact, reduces unnecessary material usage and space occupancy, and prevents external impurities or moisture from entering the interior of the clamp 3, thereby improving the protection performance of the equipment and reducing safety hazards caused by faults such as corrosion or short circuits.

[0038] In this embodiment, the copper shield 1 and the clamp 3 are detachably connected via a screw 4. One end of the screw 4 is positioned within a blind hole in the clamp 3, while the other end extends through a through hole in the copper shield 1. This detachable connection design makes the installation and removal of the copper shield 1 and the clamp 3 simple and quick. When maintenance, inspection, or replacement of the copper shield 1 or the clamp 3 is required, there is no need for large-scale disassembly of the entire system, reducing maintenance costs and improving work efficiency. Furthermore, this design facilitates the adjustment or replacement of copper shields 1 or clamps 3 of different specifications and materials according to actual needs, increasing the flexibility and applicability of the equipment.

[0039] In this embodiment, a screw rod 4 passes through a through-hole in the copper shield 1, and a nut 6 is fitted over one end of the screw rod 4. By fitting the screw rod 4 with the through-hole in the copper shield 1 and securing it with the nut 6 at the other end of the screw rod 4, a secure and reliable connection is achieved. This connection offers high tensile and shear strength, ensuring that the device will not loosen or fall off due to vibration or impact during operation. By adjusting the tightening of the nut 6, the preload force between the screw rod 4 and the copper shield 1 can be precisely controlled, thereby meeting the connection requirements under different operating conditions. Appropriate preload force ensures a tight and stable connection.

[0040] In this embodiment, the screw 4 and the nut 6 are made of an insulating screw and an insulating nut, respectively, which can effectively prevent current from being conducted through the screw and the nut, ensure electrical safety, reduce local discharge caused by current leakage, protect the equipment from damage, extend the service life of the equipment, ensure the electrical safety of the mechanical connection, prevent current leakage, simplify the installation process, and improve connection reliability.

[0041] In this embodiment, the grounding wire 5 is connected to the copper shield 1 by welding or blackened bolts. Welding grounding can ensure smooth current transmission and stable and reliable grounding system, while blackened bolt prying can meet the advantages of strong anti-rust ability, low cost and high dimensional accuracy, ensuring reliable grounding of the entire transformer structure and conducting possible static charges into the ground to prevent discharge or electric shock accidents caused by static electricity accumulation.

[0042] Directions:

[0043] First, holes are set symmetrically on the clamp 3 and the copper shield 1. The holes set on the clamp 3 are threaded holes, and the holes set on the copper shield 1 are through holes. During installation, insulating material 2 is used between the clamp 3 and the copper shield 1 to isolate the copper shield 1 from the clamp 3. Then, the copper shield 1 and the clamp 3 are installed together through the screw 4 and nut 6. When the copper shield structure is installed, the clamp 3 is fixed to the transformer core through the support.

[0044] First, determine the symmetrical positions where holes need to be drilled on the clamp 3 and the copper shield 1. The selection of these positions needs to ensure that the copper shield 1 can effectively cover and protect the sensitive parts inside the transformer while ensuring the stability of the installation. Drill threaded holes on the clamp 3. The threaded holes are blind holes. These threaded holes will be used to cooperate with the screws 4 during subsequent installation to fix the copper shield 1. Drill through holes on the copper shield 1. The positions of the through holes should correspond to the threaded holes on the clamp 3 to ensure that the two can be accurately aligned during installation. Before installing the copper shield 1, it is necessary to place insulating material 2 between the clamp 3 and the copper shield 1 to ensure electrical insulation between the copper shield 1 and the clamp 3 to prevent safety issues such as current leakage or short circuit. Hidden dangers, then align the copper shield 1 with the holes on the clamp 3. At this time, the copper shield 1 is completely separated by the insulating material 2 and has no direct contact with the clamp 3; pass the screw 4 through the through hole on the copper shield 1, and then screw it into the threaded hole on the clamp 3. Use the nut 6 to tighten the other end of the screw 4 to ensure that the copper shield 1 is firmly fixed to the clamp 3. After the installation is completed, check whether the connection between the copper shield 1 and the clamp 3 is firm, whether the insulating material 2 is intact, and whether all holes are aligned and not misaligned; finally, fix the clamp 3 to the transformer core through the support to ensure that the entire copper shield structure can be firmly installed inside the transformer and play its due shielding and protection role. Through the above steps, the copper shield structure was successfully installed on the transformer. This installation method not only ensures the stability and reliability of the copper shield 1, but also improves the safety of the equipment through the use of insulating material 2.

[0045] The present invention is further explained below with reference to a group of examples and drawings:

[0046] Example 2:

[0047] like Figure 3As shown, the embodiment of the present invention also provides a transformer clamp copper shielding structure, in which the L-shaped copper shield 1 is directly welded to the clamp 3. By directly welding the L-shaped copper shield 1 to the clamp 3, a tight electromagnetic shielding layer is formed. This design can more effectively block or reduce the electromagnetic field leakage generated during the operation of the transformer, protect the surrounding environment and equipment from electromagnetic interference, and improve the stability and reliability of the transformer operation. At the same time, it can also ensure the close fit and firm connection between the L-shaped copper shield 1 and the clamp 3, reduce the looseness or displacement caused by vibration or temperature changes, and do not increase the occupancy of additional space, thereby improving the overall design flexibility and compactness of the transformer.

[0048] The transformer clamp copper shielding structure of the utility model can effectively shield external electromagnetic interference and protect the normal operation of the internal components of the transformer on the basis of saving space, which is of great significance for improving the performance and reliability of the transformer.

[0049] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of the present teachings should be determined not with reference to the foregoing description, but rather with reference to the preceding claims, along with the full scope of equivalents to which such claims are entitled. For the purpose of completeness, all articles and references, including the disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be construed that the applicants did not consider such subject matter to be part of the disclosed utility model subject matter.

[0050] The above content is a further detailed description of the utility model. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as belonging to the scope of protection of the utility model determined by the submitted claims.

Claims

1. A transformer clamp copper shielding structure, characterized in that: The invention comprises a copper shield (1) and a clamp (3), wherein the copper shield (1) is an L-shaped structure, the copper shield (1) and the clamp (3) are detachably connected, an insulating material (2) is provided between the copper shield (1) and the clamp (3), one end of the copper shield (1) is connected to a grounding wire (5), and the grounding wire (5) is connected to the copper shield (1) by welding or prying with a blackened bolt.

2. The transformer clamp copper shielding structure according to claim 1, characterized in that: The copper shield (1) is provided with a plurality of through holes, and the clamp (3) is provided with threaded holes at positions symmetrical to the copper shield (1).

3. The transformer clamp copper shielding structure according to claim 2, characterized in that: The threaded hole on the clamp (3) is a blind hole.

4. The transformer clamp copper shielding structure according to claim 1, characterized in that: The copper shield (1) is connected to the clamp (3) via a screw (4).

5. The transformer clamp copper shielding structure according to claim 4, characterized in that: One end of the screw rod (4) is screwed into the threaded hole on the clamp (3), and the other end passes through the through hole on the copper shield (1).

6. The transformer clamp copper shielding structure according to claim 4, characterized in that: The screw rod (4) passes through the through hole on the copper shield (1) and a nut (6) is sleeved on one end thereof.

7. The transformer clamp copper shielding structure according to claim 6, characterized in that: The screw (4) and nut (6) are made of an insulating screw and an insulating nut, respectively.

8. The transformer clamp copper shielding structure according to claim 1, characterized in that: The insulating material (2) can be provided as insulating cardboard, phenolic resin or laminated wood.

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