Current transformer winding structure

Abstract

The utility model belongs to the technical field of current transformers, and particularly relates to a current transformer winding structure which comprises a conducting rod, a secondary winding is sleeved on the conducting rod, two conducting plates are installed at two ends of the conducting rod through a connecting structure, the connecting structure comprises a fixing sleeve, the fixing sleeve is arranged on the inner side face of each conducting plate, and the fixing sleeve is sleeved on the secondary winding. The conducting rod penetrates through the fixing sleeve, penetrates through the conducting plate and extends to the outer side of the conducting plate, external threads are arranged at the two ends of the conducting rod, the side, located on the external threads, of the conducting rod is sleeved with a lock washer and a locking nut, and the locking nut is in threaded connection with the external threads, so that the conducting rod and the conducting plate are convenient to mount and dismount; and the stability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of current transformers, and in particular relates to a current transformer winding structure. Background Art

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current based on the principle of electromagnetic induction. Currently, a current transformer is primarily composed of a primary winding and a secondary winding.

[0003] Chinese utility model patent CN218214975U discloses a primary winding structure of a current transformer body, comprising: a conductive plate and a conductive rod, a secondary winding being provided on the conductive rod, two conductive plates connected to the ends of the conductive rod, and conical joints being provided at both ends of the conductive rod. The conductive plate is L-shaped and has a conical hole on its upper end. The conical joint of the conductive rod is interference-fitted and inserted into the conical hole of the conductive plate, and the surfaces of the conical joint and the conical hole are both silver-plated.

[0004] In the above technical solution, the conical joint of the conductive rod is interference fit into the conical hole of the conductive plate. The advantages of this connection method are high connection strength, high positioning accuracy and good impact resistance. However, there is also the problem of difficulty in disassembly. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned technical problems and provide a current transformer winding structure, which can facilitate the installation and disassembly of the conductive rod and the conductive plate and has high stability.

[0006] In view of this, the utility model provides a current transformer winding structure, including: a conductive rod, a secondary winding is sleeved on the conductive rod, and is characterized in that two conductive plates are installed at both ends of the conductive rod through a connecting structure, and the connecting structure includes: a fixed sleeve, the fixed sleeve is arranged on the inner side of the conductive plate, the conductive rod passes through the fixed sleeve, and penetrates the conductive plate and extends to the outside of the conductive plate, both ends of the conductive rod are provided with external threads, and the conductive rod is respectively sleeved with an anti-loosening washer and a locking nut on one side of the external thread, and the locking nut is threadedly connected to the external thread.

[0007] In this technical solution, by passing the conductive rod through the fixed sleeve and connecting it with the external thread using a locking nut, the conductive rod and the conductive plate can be quickly installed and disassembled. Since both ends of the conductive rod are provided with external threads and are respectively provided with anti-loosening washers and locking nuts, the conductive rod can be effectively prevented from loosening and the stability of the connection can be ensured.

[0008] In the above technical solution, further, a plurality of limit blocks are provided on the circumference of the outer wall of the conductive rod, and a limit groove adapted to the limit blocks is provided on the inner side surface of the fixed sleeve.

[0009] In this technical solution, the cooperation between the limit block and the limit groove can prevent the conductive rod from rotating in the fixed sleeve, ensuring the connection stability of the conductive rod and the conductive plate. The limit block positions the conductive rod in the axial direction to prevent the conductive rod from axial movement during operation, thereby ensuring the measurement accuracy of the current transformer. Through the cooperation between the limit block and the limit groove, the initial positioning of the conductive rod and the fixed sleeve can be quickly achieved, simplifying the installation process.

[0010] In the above technical solution, further, the limiting block is configured as a claw-shaped structure as a whole.

[0011] In this technical solution, the claw-shaped structure increases the contact area with the stopper slot, improving the axial stability of the conductive rod and reducing the risk of displacement due to vibration or impact. The inclined design of the claw-shaped stopper makes it easier to guide the stopper into the stopper slot during installation, simplifying the alignment and installation process.

[0012] In the above technical solution, further, the upper and lower inner walls of the fixed sleeve are symmetrically provided with mounting grooves, and a limiting assembly is provided in the mounting groove, and the limiting assembly is used to limit the conductive rod passing through the fixed sleeve.

[0013] In this technical solution, by symmetrically installing the limit assemblies on the upper and lower inner walls of the fixed sleeve, the radial movement of the conductive rod can be effectively limited, thereby enhancing the stability of the entire structure. This limiting method can reduce the displacement of the conductive rod caused by vibration or external force impact during equipment operation, thereby ensuring the measurement accuracy of the current transformer.

[0014] In the above technical solution, further, the limiting assembly includes: a limiting plate, the upper end of the limiting plate is connected to a threaded rod, the threaded rod passes through a fixed sleeve and is connected to a knob, and the threaded rod is threadedly connected to the fixed sleeve.

[0015] In this technical solution, by rotating the knob, the threaded rod can move up and down in the threaded hole of the fixed sleeve, and the limit plate moves up and down with the movement of the threaded rod, thereby limiting the conductive rod passing through the center of the fixed sleeve.

[0016] In the above technical solution, further, the limiting plate is made of rubber.

[0017] In this technical solution, the rubber has good shock-absorbing and buffering properties, which can effectively absorb and reduce the vibration and impact caused by equipment operation or external influences, and protect the conductive rod and the fixed sleeve from damage.

[0018] In the above technical solution, further, a mounting hole is provided on the bottom plate of the conductive plate.

[0019] In the above technical solution, further, the secondary winding includes: an S-level secondary winding and a P-level secondary winding.

[0020] The beneficial effects of the utility model are:

[0021] 1. By passing the conductive rod through the fixed sleeve and connecting it with the external thread using a lock nut, the conductive rod and the conductive plate can be quickly installed and disassembled. Since both ends of the conductive rod are provided with external threads and are respectively provided with anti-loosening washers and lock nuts, the conductive rod can be effectively prevented from loosening and the stability of the connection can be ensured.

[0022] 2. The cooperation between the limit block and the limit slot can prevent the conductive rod from rotating in the fixed sleeve, ensuring the stability of the connection between the conductive rod and the conductive plate. The limit block positions the conductive rod in the axial direction to prevent the conductive rod from axial movement during operation, thereby ensuring the measurement accuracy of the current transformer. Through the cooperation between the limit block and the limit slot, the preliminary positioning of the conductive rod and the fixed sleeve can be quickly achieved, simplifying the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the conductive rod structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the conductive plate structure of the utility model;

[0026] Figure 4 It is a cross-sectional view of the conductive plate of the present utility model;

[0027] The marks in the figure are:

[0028] 1. Conductive rod; 2. Secondary winding; 201. S-class secondary winding; 202. P-class secondary winding; 3. Conductive plate; 4. Connection structure; 401. Fixing sleeve; 402. External thread; 403. Anti-loosening washer; 404. Locking nut; 5. Mounting hole; 6. Limiting assembly; 601. Mounting slot; 602. Limiting plate; 603. Threaded rod; 604. Knob; 7. Limiting block; 8. Limiting slot. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are 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 are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0031] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0033] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0034] Example 1:

[0035] Depend on Figure 1-4 As shown, this embodiment provides a current transformer winding structure comprising: a conductive rod 1, on which a secondary winding 2 is sleeved, characterized in that two conductive plates 3 are mounted at both ends of the conductive rod 1 via a connecting structure 4, the connecting structure 4 comprising: a fixing sleeve 401, the fixing sleeve 401 being disposed on the inner side of the conductive plate 3, the conductive rod 1 passing through the fixing sleeve and extending through the conductive plate 3 to the outside of the conductive plate 3, the conductive rod 1 having external threads 402 at both ends, the conductive rod 1 having a locking washer and a locking nut 404 respectively sleeved on one side of the external threads 402, the locking nut 404 being threadedly connected to the external threads 402. By passing the conductive rod 1 through the fixing sleeve 401 and connecting the locking nut 404 to the external threads 402, the conductive rod 1 and the conductive plate 3 can be quickly installed and removed. Since the conductive rod 1 has external threads 402 at both ends and is sleeved with a locking washer and a locking nut 404, the conductive rod 1 can be effectively prevented from loosening, ensuring the stability of the connection.

[0036] Furthermore, the outer wall of the conductive rod 1 is circumferentially provided with a plurality of stoppers 7, and the inner side of the fixed sleeve 401 is provided with stopper grooves 8 that mate with the stoppers 7. The cooperation between the stoppers 7 and the stopper grooves 8 prevents the conductive rod 1 from rotating within the fixed sleeve 401, ensuring the stability of the connection between the conductive rod 1 and the conductive plate 3. The stoppers 7 axially position the conductive rod 1, preventing axial movement of the conductive rod 1 during operation, thereby ensuring the measurement accuracy of the current transformer. The cooperation between the stoppers 7 and the stopper grooves 8 allows for rapid initial positioning of the conductive rod 1 and the fixed sleeve 401, simplifying the installation process. Furthermore, the stoppers 7 are configured as a claw-shaped structure.

[0037] The claw-shaped structure increases the contact area with the stopper slot 8, improving the axial stability of the conductive rod 1 and reducing the risk of displacement due to vibration or impact. The inclined design of the claw-shaped stopper 7 makes it easier to guide the stopper 7 into the stopper slot 8 during installation, simplifying the alignment and installation process.

[0038] Furthermore, mounting grooves 601 are symmetrically mounted on the upper and lower inner walls of the fixed sleeve 401. Within these grooves 601 is a stopper assembly 6, which serves to limit the position of the conductive rod 1 passing through the fixed sleeve. By symmetrically mounting the stopper assemblies 6 on the upper and lower inner walls of the fixed sleeve 401, the radial movement of the conductive rod 1 is effectively restricted, thereby enhancing the stability of the entire structure. This position-limiting method can reduce displacement of the conductive rod 1 caused by vibration or external impact during equipment operation, thereby ensuring the measurement accuracy of the current transformer.

[0039] Furthermore, the limiting assembly 6 includes: a limiting plate 602 , the upper end of the limiting plate 602 is connected to a threaded rod 603 , the threaded rod 603 passes through the fixed sleeve 401 and is connected to a knob 604 , and the threaded rod 603 is threadedly connected to the fixed sleeve 401 .

[0040] By rotating the knob 604 , the threaded rod 603 can move up and down in the threaded hole of the fixed sleeve 401 , and the limiting plate 602 moves up and down with the movement of the threaded rod 603 , thereby limiting the conductive rod 1 passing through the center of the fixed sleeve 401 .

[0041] Furthermore, the limiting plate 602 is made of rubber. Rubber has good shock-absorbing and buffering properties, and can effectively absorb and reduce vibrations and shocks caused by equipment operation or external influences, thereby protecting the conductive rod 1 and the fixing sleeve 401 from damage.

[0042] Furthermore, a mounting hole 5 is provided on the bottom plate of the conductive plate 3 .

[0043] Furthermore, the secondary winding 2 includes an S-level secondary winding 201 and a P-level secondary winding 202 .

[0044] The working principle of the present invention is as follows: the two ends of the conductive rod 1 are passed through the fixed sleeve 401 and extended to the outside of the conductive plate 3. Through the cooperation of the limiting block 7 and the limiting groove 8, the preliminary positioning of the conductive rod 1 and the fixed sleeve 401 can be quickly achieved, and then the anti-loosening gasket 403 and the locking nut 404 are successively sleeved on one end of the external thread 402 of the conductive rod 1 to achieve rapid installation and disassembly of the conductive rod 1 and the conductive plate 3. Then, the knob 604 is rotated, and the threaded rod 603 can move up and down in the threaded hole of the fixed sleeve 401. The limiting plate 602 moves up and down with the movement of the threaded rod 603, thereby limiting the conductive rod 1 passing through the center of the fixed sleeve 401.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A current transformer winding structure, comprising: A conductive rod (1) is provided with a secondary winding (2) sleeved on the conductive rod (1), characterized in that two conductive plates (3) are installed at both ends of the conductive rod (1) through a connecting structure (4), and the connecting structure (4) comprises: a fixing sleeve (401), the fixing sleeve (401) is provided on the inner side of the conductive plate (3), the conductive rod (1) passes through the fixing sleeve and penetrates the conductive plate (3) and extends to the outside of the conductive plate (3), both ends of the conductive rod (1) are provided with external threads (402), and the conductive rod (1) is provided with a locking washer and a locking nut (404) on one side of the external thread (402), and the locking nut (404) is threadedly connected to the external thread (402).

2. A current transformer winding structure according to claim 1, characterized in that: A plurality of limiting blocks (7) are provided on the circumference of the outer wall of the conductive rod (1), and a limiting groove (8) adapted to the limiting blocks (7) is provided on the inner side surface of the fixed sleeve (401).

3. A current transformer winding structure according to claim 2, characterized in that: The limiting block (7) is configured as a claw-shaped structure as a whole.

4. A current transformer winding structure according to claim 3, characterized in that: The fixing sleeve (401) is symmetrically provided with mounting grooves (601) on the upper and lower inner walls. A limiting assembly (6) is provided in the mounting groove (601). The limiting assembly (6) is used to limit the conductive rod (1) passing through the fixing sleeve. The limiting assembly (6) comprises a limiting plate (602), the upper end of the limiting plate (602) is connected to a threaded rod (603), the threaded rod (603) passes through a fixed sleeve (401) and is connected to a knob (604), and the threaded rod (603) is threadedly connected to the fixed sleeve (401).

5. A current transformer winding structure according to claim 4, characterized in that: The limiting plate (602) is made of rubber.

6. A current transformer winding structure according to claim 1, characterized in that: A mounting hole (5) is provided on the bottom plate of the conductive plate (3).

7. The current transformer winding structure according to claim 1, characterized in that: The secondary winding (2) comprises an S-level secondary winding (201) and a P-level secondary winding (202).

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