Transformer lead fixing structure

Abstract

The utility model discloses a kind of transformer lead fixing structure, including transformer shell and cover plate, the both ends of the cover plate integrally formed with first side plate and second side plate, the front and back of the cover plate are equipped with lead slot plate, slot hole is opened on the lead slot plate, the bottom of the side plate is connected with transformer shell, the bottom of the cover plate is equipped with wire collection part, the wire collection part includes wire collection column and the first limiting plate at the end of wire collection part, the surface of the wire collection column is wound with lead, the scheme can effectively fix and standardize arrangement transformer lead, prevent lead slackening or winding, improve installation stability and security.

Description

Technical Field

[0001] This utility model belongs to the field of transformer lead fixing technology, specifically relating to a transformer lead fixing structure. Background Technology

[0002] As a key piece of equipment in a power system, a transformer's internal windings are typically electrically connected to the external circuit via multiple leads. Due to the large number and complex distribution of these leads, improper fixing can easily cause them to become tangled, cross, or experience uneven stress, thus affecting assembly efficiency and electrical performance.

[0003] Existing methods for fixing transformer leads mostly employ binding or simple clip structures, which are cumbersome to install. Chinese Patent Application No. 2019210949285 discloses a transformer lead fixing structure, including a base plate. Support frames are fixedly connected to the left and right ends of the top of the base plate. A crossbar is fixedly connected to the top of the two opposing sides of the support frames. Three pulley assemblies are fixedly connected to the bottom of the crossbar. Mounting brackets are movably connected to the left and right ends of the top of the base plate via bolts. A reinforcing rod is fixedly connected to the opposing sides of the two mounting brackets. A transformer body is fixedly connected to the top of the mounting brackets, and heat sinks are fixedly connected to the outer surface of the transformer body.

[0004] The above solution uses a rotating threaded rod to stabilize and fix the lead body, making it easier for workers to secure it. However, this solution requires a separate clamping mechanism for each lead, which is inconvenient when dealing with a large number of leads and is also costly. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a transformer lead fixing structure, comprising a transformer housing and a cover plate. The cover plate has a first side plate and a second side plate integrally formed at both ends. Lead groove plates are provided on both the front and rear sides of the cover plate, and slots are formed on the lead groove plates. The bottom of the side plates is connected to the transformer housing. A wire gathering part is provided at the bottom of the cover plate. The wire gathering part includes a wire gathering post and a first limiting plate provided at the end of the wire gathering part. Lead wires are wound on the surface of the wire gathering post.

[0006] Preferably, the end of the cable hub is provided with a connecting shaft, the connecting shaft is provided with a threaded groove, the cover plate is provided with a through hole, and a screw handle is inserted into the through hole.

[0007] Preferably, a fixing groove is provided on the side of the first limiting plate.

[0008] Preferably, a rotating handle is provided in the middle of the first limiting plate.

[0009] Preferably, a second limiting plate is provided around the middle of the hub portion.

[0010] Preferably, both sides of the first side plate and the second side plate are provided with slots, and both sides of the lead wire groove plate are located in the slots of the first side plate and the second side plate.

[0011] Preferably, the bottom of both the first and second side plates is provided with elastic hook blocks, and the upper sides of the transformer housing are provided with matching hook grooves.

[0012] The advantages of this utility model are: 1. This solution achieves centralized winding and fixed positioning of multiple leads by setting a wire gathering part at the bottom of the cover plate and using a wire gathering post in conjunction with a limiting plate. This effectively solves the problems of individual clamping of leads and high cost in the existing technology, making the leads neatly arranged and the assembly process more efficient and reliable.

[0013] 2. The cover plate of this solution is equipped with a slot structure on both sides, which, together with the detachable lead wire slot plate, enables the orderly lead wires to be led out and quickly assembled. At the same time, the cover plate and the transformer housing adopt an elastic hook block and hook slot connection method, which enables the cover plate to be quickly installed or removed, significantly improving the convenience of maintenance and repair.

[0014] 3. This solution creates a semi-enclosed space by installing side plates and detachable lead wire slots on both sides of the cover plate, which effectively prevents external dust or debris from entering the transformer and provides protection. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the internal structure of the cover plate of this utility model.

[0016] Figure 2 This is a structural diagram of the assembled version of this utility model.

[0017] Figure 3 for Figure 2 Enlarged structural diagram of the A mark in the middle.

[0018] Figure 4 This is a cross-sectional view of the cover plate of this utility model.

[0019] Figure 5 This is a structural diagram of the wire assembly part of this utility model.

[0020] Figure 6 This is another structural diagram of the wire assembly part of this utility model.

[0021] In the diagram: 1 Transformer housing, 2 Cover plate, 3 First side plate, 4 Second side plate, 5 Lead wire groove plate, 6 Slot, 7 Hub post, 8 First limiting plate, 9 Connecting shaft, 10 Through hole, 11 Screw handle, 12 Fixing groove, 13 Rotating handle, 14 Second limiting plate, 15 Slot, 16 Elastic hook block, 17 Hook groove. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Simultaneously, when an component is referred to as "fixed to" or "equipped on" another component, it can be directly on the other component or may have an intervening component present. When an component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. When an component is referred to as "fixedly connected to" another component, it can be a common fixed connection method such as welding, bolting, or gluing. In short, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1, such as Figure 1-2As shown, a transformer lead fixing structure includes a transformer housing 1 and a cover plate 2. The cover plate 2 is installed above the transformer housing 1 to cover the opening of the transformer and provides support and protection. The cover plate 2 has a first side plate 3 and a second side plate 4 integrally formed at both ends, arranged parallel to each other. The first side plate 3 and the second side plate 4 not only provide structural support but also provide a snap-fit ​​position for the installation of lead slot plates 5, making the overall structure stable and compact. Lead slot plates 5 are respectively provided on the front and rear sides of the cover plate 2, extending along the length of the cover plate 2, and each slot plate 5 has multiple staggered slots 6. Each slot 6 is used for the lead wire to pass through, allowing the lead wire to be led out from the inside according to a predetermined path, avoiding messy crossing. The lead slot plates 5 have snap-fit ​​parts at both ends, which can be inserted into the slots 15 of the first side plate 3 and the second side plate 4. During assembly, they can be fixed simply by pushing in the sliding direction, facilitating installation and disassembly. When maintenance or replacement of leads is required, operators only need to remove the lead tray plate 5 to maintain the internal wiring structure, which greatly improves the ease of use.

[0026] The bottom of the cover plate 2 is equipped with a wire gathering section, which is the core part of this structure and is used for centralized winding and limiting fixation of the leads. The wire gathering section includes a wire gathering post 7 and a first limiting plate 8 located at the end of the wire gathering section. The wire gathering post 7 is arranged vertically, and multiple transformer leads can be wound around its outer surface. Specifically, during installation, the workers can sequentially wind the leads around the outside of the wire gathering post 7 and lead them out through the slots 6 on the lead groove plate 5. This centralized winding method allows the leads to be arranged in an orderly manner.

[0027] The end of the cable hub is provided with a connecting shaft 9. The surface of the connecting shaft 9 is provided with a threaded groove. A through hole 10 is provided on the cover plate 2 at the corresponding position. A screw handle 11 is inserted into the through hole 10. The screw handle 11 passes through the through hole 10 and is threadedly connected to the threaded groove. The operator can rotate the screw handle 11 to make the connecting shaft 9 axially lock relative to the cover plate 2, thereby fixing the cable hub firmly to the bottom of the cover plate 2, ensuring that the cable hub does not shake or loosen during operation, and the structural connection is more robust and reliable.

[0028] The first limiting plate 8 is installed at the end of the wire gathering section, located on the outermost side of the lead wire winding layer. Its main function is to prevent the lead wire from falling off radially during winding. To improve the fixing effect, a fixing groove 12 is provided on the side of the first limiting plate 8. The fixing groove 12 can be fitted with the lead wire part, further enhancing the limiting and anti-slip performance. At the same time, a rotating handle 13 is provided in the middle of the first limiting plate 8. The operator can rotate the entire wire gathering column 7 by rotating the handle 13, so that the lead wire is wound synchronously. The operation is easy and avoids the tediousness and instability of manual winding.

[0029] Combination Figure 5 and Figure 6In this embodiment, two hubs can be provided. One hub has only one first limiting plate 8, while the other hub has a second limiting plate 14 surrounding it in the middle. The second limiting plate 14 works in conjunction with the first limiting plate 8 to form a limiting zone for lead winding. This maintains the neatness of the winding layers when multiple lead layers are stacked, preventing the lead from sliding up and down or becoming disordered, thus making the winding more uniform and reliable. This double limiting plate structure allows for flexible adjustment of the spacing according to the number and thickness of the lead, making it suitable for transformers of different specifications and models.

[0030] Combination Figure 3 and Figure 4 To enhance the overall structural stability and assembly convenience, both sides of the first side plate 3 and the second side plate 4 are provided with slots 15. The two sides of the lead wire tray plate 5 are inserted into the slots 15 to form a fixed connection, realizing the detachability of the lead wire tray plate 5. The connection between the cover plate 2 and the transformer housing 1 adopts an elastic hook structure, that is, elastic hooks 16 are provided at the bottom of the first side plate 3 and the second side plate 4, and hook slots 17 are provided on both sides of the upper part of the transformer housing 1. When the cover plate 2 is installed in place, the elastic hooks 16 can automatically engage with the hook slots 17, thereby achieving quick installation and fixation. If disassembly is required, simply pry the side plate inward to disengage the elastic hooks 16 from the hook slots 17, and the cover plate 2 can be easily removed. This connection method not only eliminates the step of screw assembly, but also maintains reliable fixation under vibration conditions, preventing the cover plate 2 from loosening.

[0031] During operation, the operator first winds the transformer's multiple leads through the hub posts 7, with each lead sequentially wrapped around the surface of the hub post 7. Then, the free ends of the leads are led out through the slots 6 on the lead slot plate 5. If necessary, the rotating handle 13 on the first limiting plate 8 can be rotated to simultaneously tighten the hub posts 7, making the leads wind more securely. The fixing groove 12 on the limiting plate serves as a guide and anti-slip feature during this process, preventing the leads from becoming misaligned or loose. After winding and limiting, the leads maintain a neat spacing, and then the screw handle 11 is rotated to complete the final fixing of the hub.

[0032] This invention creates a semi-enclosed space by incorporating side plates and detachable lead wire slots 5 on both sides of the cover plate 2. This effectively prevents external dust or debris from entering the transformer, providing protection. Simultaneously, the design of the cable management section allows for centralized organization and unified cable exit, significantly improving assembly efficiency. Furthermore, the various components of this structure are mostly connected by snap-fit ​​and screw-fit methods, eliminating the need for numerous fasteners and facilitating mass production and on-site assembly. The cover plate 2, side plates, and lead wire slots 5 are all made of engineering plastics with excellent insulation properties, which are not only lightweight and highly temperature-resistant but also effectively prevent electrical short-circuit hazards, further ensuring the safety of transformer operation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transformer lead fixing structure, characterized in that: The transformer includes a transformer housing (1) and a cover plate (2). The cover plate (2) has a first side plate (3) and a second side plate (4) integrally formed at both ends. The front and rear sides of the cover plate (2) are provided with lead wire groove plates (5). The lead wire groove plates (5) are provided with slots (6). The bottom of the side plate is connected to the transformer housing (1). The bottom of the cover plate (2) is provided with a wire gathering part. The wire gathering part includes a wire gathering post (7) and a first limiting plate (8) provided at the end of the wire gathering part. Lead wires are wound on the surface of the wire gathering post (7).

2. The transformer lead fixing structure according to claim 1, characterized in that: The end of the cable hub is provided with a connecting shaft (9), the connecting shaft (9) is provided with a threaded groove, the cover plate (2) is provided with a through hole (10), and a screw handle (11) is inserted into the through hole (10).

3. The transformer lead fixing structure according to claim 2, characterized in that: A fixing groove (12) is provided on the side of the first limiting plate (8).

4. The transformer lead fixing structure according to claim 3, characterized in that: The first limiting plate (8) has a rotating handle (13) in the middle.

5. The transformer lead fixing structure according to claim 4, characterized in that: The middle of the cable assembly is provided with a second limiting plate (14).

6. The transformer lead fixing structure according to claim 5, characterized in that: Both sides of the first side plate (3) and the second side plate (4) are provided with slots (15), and the two sides of the lead wire groove plate (5) are located in the slots (15) of the first side plate (3) and the second side plate (4).

7. The transformer lead fixing structure according to claim 6, characterized in that: The bottom of the first side plate (3) and the second side plate (4) are provided with elastic hook blocks (16), and the upper sides of the transformer housing (1) are provided with hook grooves (17).

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