Splicing insulating cylinder stay composite structure

Abstract

The utility model relates to the technical field of power transformer manufacturing, and discloses a splicable insulating cylinder stay composite structure, which comprises an insulating cylinder main body, a stay, a buckle and a clamping groove, the stay of the insulating cylinder can be easily clamped and fixed through the designed buckle and clamping groove structure, the efficiency and the precision of the assembly process are improved, and the production cost is reduced. A certain insulation level can be kept; the unique trapezoidal and rectangular hollow design between the stays and the buckles not only ensures the stable clamping of the buckles, but also increases the contact area and friction force through shape matching, effectively prevents the loosening or falling caused by external force in the use process, enhances the stability and safety of the whole insulating cylinder structure, and improves the service life of the insulating cylinder. According to the design of the structure, a plurality of insulating cylinder main bodies are allowed to be flexibly spliced through the clamping grooves and the clamping buckles, the purposes of prolonging the length of the insulating cylinder and constructing a more complex insulating structure can be easily achieved, and the requirements in different application scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of power transformer manufacturing, specifically relates to a kind of splicing insulating cylinder bracing bar composite structure. BACKGROUND

[0002] With the rapid progress of science and technology and the continuous development of society, the demand for electricity by the masses shows a trend of rising year by year, which directly leads to the significant growth of the transformer market. However, while the use of transformers is becoming more and more widespread, the phenomenon of overload operation is also becoming more and more frequent, which puts forward more stringent requirements on the production efficiency and quality of transformers, especially the efficiency of transformer coil assembly and body assembly, which has become a key link that needs to be improved. In the current manufacturing practice, the insulation structure used by China's oil-immersed power transformer still follows the traditional design method of insulating cylinder with bracing bar.

[0003] Although this traditional insulation structure meets the basic electrical insulation requirements to some extent, its inherent limitations are becoming increasingly apparent. Figure 1 As shown, the traditional insulating cylinder lap joint is not firm due to the large number of bracing bars, and the bracing bars are prone to position deviation after being covered by the insulating cylinder, which not only increases the production time, but also may cause assembly errors, affecting the overall efficiency. In addition, due to the large number of components and the need for precise assembly in limited space, the traditional structure faces challenges in precision control. Small deviations can affect the insulation performance and even cause unstable operation or failure of the transformer. More importantly, with the increasing demand for high efficiency, energy saving and environmental protection of transformers in the market, this traditional insulation structure has gradually become difficult to meet the rapidly changing market demand due to its low assembly efficiency, low material utilization rate and relatively high maintenance cost, and urgent technical innovation and upgrading are needed. Therefore, exploring a more efficient and precise insulation structure assembly method has become a top priority for the sustainable and healthy development of China's oil-immersed power transformer industry. SUMMARY

[0004] The utility model aims at overcoming the above problems, providing a kind of splicing insulating cylinder bracing bar composite structure, improve the stability of the insulating cylinder and bracing bar lap joint part in body, reduce assembly error, it is favorable to improve the insulation characteristics of transformer, can optimize assembly step simultaneously, improve assembly efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of splicing insulating cylinder bracing bar composite structure, including insulating cylinder main part, the insulating cylinder main part head and tail two ends are provided with bracing bar and buckle respectively, the bracing bar is internally provided with clamping slot, and the buckle is clamped in the inside of clamping slot;

[0007] The second trapezoidal hollow of the clamping groove is coincided with one side of the second rectangular hollow, the first trapezoidal hollow of the buckle is coincided with one side of the first rectangular hollow, and the first trapezoidal hollow of the buckle is coincided with one side of the first rectangular hollow.

[0008] The first rectangular hollow and the second rectangular hollow are wider than the upper base of the first trapezoidal hollow and the second trapezoidal hollow.

[0009] The first rectangular hollow and the second rectangular hollow are the same width as the width of the insulating barrel body.

[0010] The first rectangular hollow and the first trapezoidal hollow inside the buckle are matched with the second rectangular hollow and the second trapezoidal hollow inside the clamping groove.

[0011] The insulating barrel body is a PVC insulating barrel body.

[0012] The first rectangular hollow and the second rectangular hollow are isosceles trapezoids.

[0013] The insulating barrel body and the supporting strip are integrally formed.

[0014] The insulating barrel body is a circular arc structure.

[0015] The insulating barrel body is a solid structure.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model provides a kind of splicing insulating barrel supporting strip composite structure, and the clamping groove and buckle structure designed by making the supporting strip of insulating barrel be able to be easily fixed, not only improve the efficiency and precision of assembly process, but also can keep certain insulation level;The unique trapezoidal and rectangular hollow design between supporting strip and buckle not only ensures the stable clamping of buckle, but also increases contact area and friction by shape cooperation, effectively prevents loosening or falling caused by external force in use process, enhances the stability and security of entire insulating barrel structure, and the design of the structure allows multiple insulating barrel bodies to be flexibly spliced by clamping groove and buckle, whether it is to extend the length of insulating barrel or to build more complex insulation structure, can be easily realized, meet the needs in different application scenarios.

[0018] Further, the first rectangular hollow and the first trapezoidal hollow inside the buckle match the size of the second rectangular hollow and the second trapezoidal hollow inside the card slot. Since the hollow parts of the buckle and the card slot match, the buckle can be tightly clamped in the card slot, avoiding the risk of loosening or falling off. This tight connection can ensure that the insulating cylinder stay structure remains stable during use and is not easily deformed or damaged by external forces. At the same time, the tight connection of the buckle and the card slot not only improves the stability of the connection, but also enhances the integrity of the entire insulating cylinder stay structure.

[0019] Further, the insulating cylinder body and the stay are integrally formed. The integrally formed design avoids weak points caused by the connection of different components, and the overall structure is more solid and durable. In addition, the insulating cylinder body and the stay are integrally formed using the same material, which can ensure that the insulation performance of the entire structure is consistent, helping to reduce insulation weak points caused by material differences and improve overall insulation level. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportions of the components in the drawings are only illustrative and are used to help understand the present application, and are not specific limitations on the shapes and proportions of the components.

[0021] Figure 1 Schematic diagram of traditional transformer insulating cylinder stay lap joint;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the splicable insulating cylinder stay monomer of the present application;

[0023] Figure 3 Schematic diagram of the splicable insulating cylinder stay splicing structure of the present application;

[0024] Figure 4 Schematic diagram of the circumferential splicing structure of the splicable insulating cylinder stay of the present application.

[0025] Wherein: 1, insulating cylinder body; 2, stay; 3, buckle; 31, first rectangular hollow; 32, first trapezoidal hollow; 4, card slot; 41, second rectangular hollow; 42, second trapezoidal hollow. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application will be described in further detail below in conjunction with the drawings:

[0033] As Figure 2 and Figure 3 shown, the utility model embodiment provides a kind of splicing insulating cylinder bracing bar composite structure, including insulating cylinder main body 1, bracing bar 2, buckle 3 and card slot 4, wherein the first and last ends of insulating cylinder main body 1 are provided with bracing bar 2 and buckle 3 respectively, bracing bar 2 is internally provided with card slot 4, and buckle 3 is clamped in the inside of card slot 4.

[0034] In the embodiment, the second rectangular hollow 41 is provided at the position close to the insulating cylinder main body 1, the second trapezoidal hollow 42 is provided at the position away from the insulating cylinder main body 1, the upper base of the second trapezoidal hollow 42 coincides with one side of the second rectangular hollow 41, the first trapezoidal hollow 32 is provided at the position close to the insulating cylinder main body 1 of the buckle 3, the first rectangular hollow 31 is provided at the position away from the insulating cylinder main body 1 of the buckle 3, the upper base of the first trapezoidal hollow 32 coincides with one side of the first rectangular hollow 31, and the width of the first rectangular hollow 31 and the second rectangular hollow 41 is greater than the upper base of the first trapezoidal hollow 32 and the second trapezoidal hollow 42, and the width of the first rectangular hollow 31 and the second rectangular hollow 41 is the same as the width of the insulating cylinder main body 1.

[0035] When buckle 3 and card slot 4 are connected, they can form a more stable mechanical locking structure. Due to the design of the trapezoidal hollow, when buckle 3 is inserted into card slot 4, the trapezoidal part will play a guiding and preliminary fixing role, making it easier for buckle 3 to align and slide into card slot 4 when inserted, reducing installation difficulty. The rectangular hollow part provides the final stable locking, ensuring that buckle 3 can be firmly locked in card slot 4 after complete insertion and is not easy to fall off. This design helps prevent buckle 3 from loosening or falling off in card slot 4, thereby enhancing the stability and reliability of the entire structure.

[0036] In the embodiment, the first rectangular hollow 31 and the first trapezoidal hollow 32 inside buckle 3 match the size of the second rectangular hollow 41 and the second trapezoidal hollow 42 inside card slot 4. Since the hollow parts of buckle 3 and card slot 4 match, buckle 3 can be tightly clamped in card slot 4, avoiding the risk of loosening or falling off. This tight connection method can ensure that the insulating cylinder bracing bar structure remains stable during use and is not easily deformed or damaged by external forces. At the same time, the tight connection of buckle 3 and card slot 4 not only improves the stability of the connection, but also enhances the integrity of the entire insulating cylinder bracing bar structure.

[0037] In this embodiment, the insulating barrel body 1 is a PVC insulating barrel body 1, the PVC material has good electrical insulation performance, which can meet the high requirements of electrical equipment on insulation performance, and the insulating barrel body 1 and the support bar 2 are both processed by PVC integral molding technology, which can ensure the integrity of the material during the manufacturing process of the insulating barrel body 1 and the support bar 2, and further improve the overall insulation performance.

[0038] In this embodiment, the first rectangular hollow 31 and the second rectangular hollow 41 are both isosceles trapezoids, the shape of the isosceles trapezoid makes the buckle 3 and the clamping groove 4 form a more stable mechanical locking structure when connected. The slope design of the trapezoid plays a guiding and preliminary fixing role, while the straight part of the rectangle provides the final stable locking, the shape of the isosceles trapezoid can make the stress more evenly distributed on the contact surface of the buckle 3 and the clamping groove 4, which helps to reduce local damage or deformation caused by uneven stress and improve the carrying capacity of the overall structure.

[0039] In this embodiment, the insulating barrel body 1 is a circular arc structure, which has a certain flexibility and can better adapt to electrical equipment of different sizes and shapes; the insulating barrel body 1 is a solid structure, which can provide better overall rigidity and stability, ensure that the insulating barrel is not easy to deform or damage when bearing external force, reduce the risk of electrical breakdown caused by internal gaps or cracks, and improve the electrical insulation performance of the insulating barrel.

[0040] As shown in Figure 4 The present embodiment provides an 18-gear insulating barrel support bar composite structure, which realizes flexible regulation of the circumferential diameter by increasing the length and number of gears of the insulating barrel support bar structure, thereby meeting the wide assembly generalization demand. Specifically, the buckle 3 on one insulating barrel body 1 is clamped with the clamping groove 4 on another insulating barrel body 1, and this operation is repeated, so as to form a continuous circular ring. This process is not only simple and fast, but also ensures the stable splicing of the insulating barrel support bar composite structure, which brings great convenience for the assembly and maintenance of electrical equipment.

[0041] Many embodiments and many applications other than those provided in the foregoing description will be apparent to those skilled in the art from the foregoing description. Thus, the scope of the present teachings should not be determined from the foregoing description, but instead should be determined from the following claims as well as equivalents to the claims that are possessed by the skilled person. The disclosures of all articles and references, including patent applications and publications, are incorporated by reference for all purposes in the present document. The omission in the foregoing description of any aspect of the subject matter disclosed herein is not to be construed as an abandonment of that aspect of the subject matter. Any reference to claim means a product or use by itself, without necessarily referring to other claims.

[0042] The above is a further detailed description of the present application, which cannot be deemed as limiting the specific embodiments of the present application to the above. For those skilled in the art to which the present application belongs, without departing from the concept of the present application, some simple deductions or substitutions can be made, which shall be deemed as falling within the protection scope of the present application determined by the submitted claims.

Claims

1. A composite structure of splicable insulating cylinder support bars, characterized in that, The device includes an insulating cylinder body (1), with support bars (2) and buckles (3) respectively provided at both ends of the insulating cylinder body (1). The support bars (2) have slots (4) inside, and the buckles (3) are engaged inside the slots (4). The slot (4) has a second rectangular hollow (41) near the insulating cylinder body (1), and the slot (4) has a second trapezoidal hollow (42) away from the insulating cylinder body (1). The upper bottom edge of the second trapezoidal hollow (42) coincides with one side of the second rectangular hollow (41). The buckle (3) has a first trapezoidal hollow (32) near the insulating cylinder body (1), and the buckle (3) has a first rectangular hollow (31) away from the insulating cylinder body (1). The upper bottom edge of the first trapezoidal hollow (32) coincides with one side of the first rectangular hollow (31).

2. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The widths of the first rectangular hollow (31) and the second rectangular hollow (41) are both greater than the upper base of the first trapezoidal hollow (32) and the second trapezoidal hollow (42).

3. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The width of the first rectangular hollow (31) and the second rectangular hollow (41) is the same as the width of the insulating cylinder body (1).

4. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The first rectangular hollow (31) and the first trapezoidal hollow (32) inside the buckle (3) are matched in size with the second rectangular hollow (41) and the second trapezoidal hollow (42) inside the slot (4).

5. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The insulating cylinder body (1) is a PVC insulating cylinder body (1).

6. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, Both the first hollow rectangle (31) and the second hollow rectangle (41) are isosceles trapezoids.

7. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The insulating cylinder body (1) and the support bar (2) are integrally formed.

8. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The insulating cylinder body (1) has an arc-shaped structure.

9. The splicable insulating cylinder support composite structure according to claim 1, characterized in that, The insulating cylinder body (1) is a solid structure.

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