Structure for improving electric leakage through ribs for fixing coils to be centered

Abstract

The utility model relates to the technical field of current transformers, in particular to a structure for improving electric leakage through ribs for fixing coils in the middle, which comprises a shell, an inner column is fixedly connected to one side of an inner cavity of the shell, a plurality of ribs are fixedly connected to the surface of the inner column, the surfaces of the ribs are jointly sleeved with the coils, and the ribs are fixedly connected with the inner column. A detection winding is arranged on one side of the coil, and a binding secondary lead is arranged on one side of the coil. Compared with the prior art, the utility model has the advantage of improving electric leakage parameters, and in the actual use process, a worker only needs to simply place the coil into the shell, and the coil can be automatically centered by utilizing the structural constraint of the shell, so that the operation process is simplified, the labor intensity of the worker is reduced, and the qualified rate of products is obviously improved; by utilizing the physical characteristics of the shell and through the structural layout, the coil can be naturally and stably centered and positioned after being placed, and the problem of current leakage caused by improper placement of a detection winding is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, specifically a structure for improving leakage current by fixing the ribs in the center of the coil. Background Technology

[0002] During the manufacturing and testing of coils, the windings under test often present considerable challenges to production line workers due to their precise structural characteristics and strict assembly requirements. Specifically, when a coil is placed in a testing device, its position is crucial to the final test results and the overall performance of the product. However, due to the physical characteristics of the coil and the limitations of existing technology, workers often need to manually adjust the coil to ensure that it is precisely centered.

[0003] This manual adjustment process is not only difficult to operate, but also highly susceptible to human error. Even experienced employees may make mistakes due to fatigue or distraction after working for a long time. In addition, because the coil is often small, its minute positional deviations are difficult to accurately identify with the naked eye. Although these minute deviations may seem insignificant, they can have a significant impact on the coil's parameter performance, thereby affecting the overall quality and performance of the product.

[0004] More seriously, if the coil cannot be accurately placed in the center, it may cause the detection device to malfunction or even damage the equipment. This will not only increase production costs and maintenance expenses, but also seriously affect the overall efficiency of the production line and product quality. Therefore, how to effectively solve the problems of difficult manual adjustment of coils and difficulty in visually identifying deviations has become a technical problem that urgently needs to be solved in the field of coil manufacturing and testing. Utility Model Content

[0005] The purpose of this invention is to provide a structure with a centrally located rib to improve leakage current, which has the advantage of improving leakage current parameters and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a structure for improving leakage current by fixing the ribs in the center of the coil, comprising a housing, an inner column fixedly connected to one side of the inner cavity of the housing, a plurality of ribs fixedly connected to the surface of the inner column, a coil being sleeved on the surface of the plurality of ribs, a detection winding being provided on one side of the coil, a secondary lead being wrapped on one side of the coil, a placement hole being opened on one side of the inner column, a flexible wire being placed in the inner cavity of the placement hole, a plurality of protrusions fixedly connected to one side of the housing, a protective cover being provided on one side of the housing, a groove being opened on the surface of the protective cover to fit the protrusions, round blocks being fixedly connected to both sides of the inner cavity of the groove, and slots matching the round blocks being fixedly connected to both sides of the protrusions.

[0007] Furthermore, as a preferred embodiment of this invention, both the shell and the protective cover have rounded corners on their surfaces.

[0008] Furthermore, as a preferred embodiment of this utility model, two through holes are provided on one side of the inner column, and the two through holes are respectively located on both sides of the placement hole.

[0009] Furthermore, as a preferred embodiment of this utility model, a placement cavity is provided above the inner cavity of the housing, and the detection winding and the secondary lead wire are both located in the inner cavity of the placement cavity.

[0010] Furthermore, as a preferred embodiment of this utility model, one side of the protective cover is provided with an adapter hole one and an adapter hole two that are adapted to the placement hole and the through hole.

[0011] Beneficial Effects: The technical solution of this application has the following advantages: This utility model has the advantage of improving leakage current parameters. In actual use, employees only need to place the coil into the housing, and the structural constraints of the housing itself will automatically center the coil. This not only simplifies the operation process and reduces the labor intensity of employees, but also significantly improves the product qualification rate. Specifically, by utilizing the physical characteristics of the housing and through structural layout, it ensures that the coil can be naturally and stably centered after being placed, effectively avoiding leakage current problems caused by improper placement of the testing winding, and also ensuring that the mutual inductance coil can be stably positioned. Precise placement within the housing material significantly improves the product qualification rate, increasing it from approximately 60% to about 80%. This is crucial for enhancing production efficiency, reducing costs, and strengthening market competitiveness. Furthermore, the introduction of internal columns and ribs not only strengthens the structural strength of the housing but, more importantly, serves as auxiliary positioning elements, precisely guiding the coil's position within the housing. This further ensures the coil's centering and stability, effectively mitigating abnormal leakage parameters that may be caused by coil position deviations, thereby improving the overall performance and reliability of the current transformer.

[0012] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear view of the partially disassembled structure of the shell and inner column of this utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the shell of this utility model.

[0017] In the figure, the meanings of the various reference numerals are as follows: 1. Shell; 2. Inner column; 3. Rib; 4. Coil; 5. Detection winding; 6. Wrapping secondary lead; 7. Placement hole; 8. Flexible wire; 9. Protrusion; 10. Protective cover; 11. Groove; 12. Round block; 13. Slot; 14. Arc angle; 15. Through hole; 16. Placement cavity; 17. Adapter hole one; 18. Adapter hole two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. To better understand the technical content of the present utility model, specific embodiments are provided and described in conjunction with the accompanying drawings. Various aspects of the present utility model are described in this disclosure with reference to the accompanying drawings, which show many illustrative embodiments. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] As attached Figure 1 To be continued Figure 3 As shown: This embodiment provides a structure for improving leakage current by fixing the ribs in the center of the coil. It includes a housing 1, an inner column 2 fixedly connected to one side of the inner cavity of the housing 1, a plurality of ribs 3 fixedly connected to the surface of the inner column 2, a coil 4 being sleeved on the surface of the plurality of ribs 3, a detection winding 5 being provided on one side of the coil 4, a secondary lead 6 being provided on one side of the coil 4, a placement hole 7 being provided on one side of the inner column 2, a flexible wire 8 being provided in the inner cavity of the placement hole 7, a plurality of protrusions 9 being fixedly connected to one side of the housing 1, a protective cover 10 being provided on one side of the housing 1, a groove 11 adapted to the protrusions 9 being provided on the surface of the protective cover 10, round blocks 12 being fixedly connected to both sides of the inner cavity of the groove 11, and slots 13 adapted to the round blocks 12 being fixedly connected to both sides of the protrusions 9.

[0020] Specifically, both the housing 1 and the protective cover 10 have an arc angle 14 on their surfaces.

[0021] In this embodiment, the setting of the arc angle 14 improves the aesthetics of the surface of the shell 1 and the inner column 2, and also avoids sharp edges on the shell 1 and the inner column 2 that could cause injury to the user.

[0022] Specifically, two through holes 15 are opened on one side of the inner column 2, and the two through holes 15 are located on both sides of the placement hole 7.

[0023] In this embodiment, the through hole 15 is used to release the heat or gas generated inside the electromagnetic device, which helps to prevent the internal temperature from being too high or the gas pressure from being too high, thereby protecting the normal operation of the electromagnetic device.

[0024] Specifically, a placement cavity 16 is provided above the inner cavity of the housing 1, and the detection winding 5 and the secondary lead 6 are both located in the inner cavity of the placement cavity 16.

[0025] In this embodiment, the placement cavity 16 serves to place the detection winding 5 and the secondary lead 6, thus preventing the detection winding 5, the secondary lead 6 and the reinforcing bar 3 from coming into contact.

[0026] Specifically, the protective cover 10 has an adapter hole 17 and an adapter hole 2 18 on one side that are adapted to the placement hole 7 and the through hole 15.

[0027] In this embodiment, the use of adapter hole 17 and adapter hole 18 together is used to adapt the through hole 15 and the placement hole 7, thereby improving the rationality of the structural layout.

[0028] Working principle and usage process of this utility model:

[0029] After the coil 4 is wrapped with the secondary lead 6, it is inserted into the inner cavity of the housing 1 through the detection winding 5. At this time, the ribs 3 on the surface of the inner post 2 are close to the inner ring of the coil 4, fixing the coil 4 in the center. The ribs 3 do not contact the detection winding 5. The detection winding 5 and the wrapped secondary lead 6 are placed in the inner cavity of the placement cavity 16, so that the coil 4 is placed stably in the inner cavity of the housing 1. The housing 1 itself constrains the coil 4 to be centered, which greatly improves the product qualification rate. The flexible wire 8 plays the role of connecting various components. The flexible wire 8 is used to connect the detection winding 5, the inner post 2 and the external circuit to ensure smooth transmission of current and signal. Then, a protective cover 10 is set on one side of the housing 1. The protective cover 10 drives 123 to be inserted into the inner cavity of the slot 13, and the protrusion 9 is located in the inner cavity of the groove 11 to seal one side of the housing 1, which can improve the safety of the coil 4.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A structure for improving leakage current by fixing the ribs in the center of the coil, comprising a housing (1), characterized in that: An inner column (2) is fixedly connected to one side of the inner cavity of the housing (1). Several ribs (3) are fixedly connected to the surface of the inner column (2). A coil (4) is sleeved on the surface of the several ribs (3). A detection winding (5) is provided on one side of the coil (4). A secondary lead wire (6) is provided on one side of the coil (4). A placement hole (7) is opened on one side of the inner column (2). A soft wire (8) is provided in the inner cavity of the placement hole (7). Several protrusions (9) are fixedly connected to one side of the housing (1). A protective cover (10) is provided on one side of the housing (1). A groove (11) that matches the protrusions (9) is opened on the surface of the protective cover (10). A round block (12) is fixedly connected to both sides of the inner cavity of the groove (11). A slot (13) that matches the round block (12) is fixedly connected to both sides of the protrusion (9).

2. The structure for improving leakage current by fixing the rib in the center of the coil according to claim 1, characterized in that: The surfaces of the housing (1) and the protective cover (10) are both provided with arc corners (14).

3. The structure for improving leakage current by fixing the rib in the center of the coil according to claim 1, characterized in that: Two through holes (15) are opened on one side of the inner column (2), and the two through holes (15) are located on both sides of the placement hole (7).

4. The structure for improving leakage current by fixing the rib in the center of the coil according to claim 1, characterized in that: A placement cavity (16) is provided above the inner cavity of the housing (1), and the detection winding (5) and the secondary lead wire (6) are both located in the inner cavity of the placement cavity (16).

5. The structure for improving leakage current by fixing the rib in the center of the coil according to claim 3, characterized in that: The protective cover (10) has an adapter hole one (17) and an adapter hole two (18) on one side that are adapted to the placement hole (7) and the through hole (15).

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