A current transformer connection device

Abstract

The utility model discloses a current transformer connecting device relates to the field of current transformer. The current transformer connecting device includes current transformer bottom plate, base and clamping component, the clamping component is used for fixing current transformer bottom plate on the base, the clamping component includes sleeve, clamping block and spring, the clamping block sliding connection is in the sleeve, the spring is abutted between the sleeve inner wall and clamping block, the clamping block with current transformer bottom plate activity is abutted. The current transformer connecting device realizes the connection of current transformer bottom plate and base through clamping component, need not to use the tool to tighten the bolt, only need to insert the current transformer bottom plate into the insertion slot of base, and the clamping block is automatically fixed with the bottom plate under the spring effect and realizes, greatly shortens the installation time, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of current transformers, and in particular to a current transformer connection device. Background Technology

[0002] In power systems, current transformers are key equipment used to proportionally convert high currents into low currents for use by measuring instruments and relay protection devices.

[0003] Traditionally, current transformers are connected to their bases using bolts. This method has several drawbacks in practical applications: bolted connections require tools to tighten or loosen each bolt individually, a cumbersome process that consumes significant time and manpower, especially during large-scale installations or maintenance, where efficiency becomes a major concern. Furthermore, removing the bolts is difficult and can easily damage the bolts or related components, increasing maintenance costs when maintenance or replacement of the current transformer is needed. Therefore, developing a current transformer connection device that effectively solves these problems is of significant practical importance. Utility Model Content

[0004] The purpose of this utility model is to provide a current transformer connection device to solve the problems of traditional current transformers and bases being connected by bolts, which require tools to tighten or loosen the bolts one by one, a cumbersome process that consumes a lot of time and manpower; and when the current transformer needs to be maintained or replaced, the operation of disassembling the bolts is difficult and can easily damage the bolts or related components, increasing maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A current transformer connection device includes a current transformer base plate, a base, and a snap-fit ​​assembly. The snap-fit ​​assembly is used to fix the current transformer base plate on the base. The snap-fit ​​assembly includes a housing, a snap-fit ​​block, and a spring. The snap-fit ​​block is slidably connected inside the housing. The spring abuts against the inner wall of the housing and the snap-fit ​​block. The snap-fit ​​block movably abuts against the current transformer base plate.

[0006] Preferably, both ends of the current transformer base plate are provided with inwardly inclined notches.

[0007] Preferably, a positioning block is fixedly connected to the base, and the positioning block is used for initial positioning of the current transformer base plate;

[0008] The base has a plug slot, and the positioning block is located on the front and rear sides of the plug slot opening.

[0009] Preferably, the current transformer base plate is inserted into the insertion slot.

[0010] Preferably, a through hole is provided on one side of the casing.

[0011] Preferably, a triangular block is fixedly connected to one side of the snap-fit ​​block, and the triangular block moves against the inclined notch.

[0012] Preferably, the snap-fit ​​assembly further includes a movable rod and a pull rod. One end of the movable rod passes through a spring and is fixedly connected to the snap-fit ​​block. The other end of the movable rod passes through a through hole and is fixedly connected to the pull rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This current transformer connection device connects the current transformer base plate to the base via a snap-fit ​​assembly. No tools are needed to tighten bolts; simply insert the current transformer base plate into the insertion slot of the base. The snap-fit ​​block automatically abuts against the base plate under spring action, thus securing it and significantly reducing installation time and efficiency. When maintenance or replacement of the current transformer is required, simply pull the lever. This movement causes the snap-fit ​​block to compress the spring, separating it from the current transformer base plate, allowing the base plate to be easily removed from the base. The operation is simple and reduces maintenance costs.

[0015] 2. The positioning block on the base of this current transformer connection device can initially position the current transformer base plate, so that it can be quickly and accurately positioned when inserted into the plug slot, which improves the installation accuracy and avoids the performance of the current transformer being affected by installation deviation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the current transformer base plate and base structure of this utility model;

[0019] Figure 3 This is an exploded view of the snap-fit ​​assembly of this utility model.

[0020] In the diagram: 1. Current transformer base plate; 11. Inclined notch; 2. Base; 21. Positioning block; 22. Insertion slot; 3. Snap-fit ​​assembly; 31. Housing; 311. Through hole; 32. Snap-fit ​​block; 321. Triangular block; 33. Moving rod; 34. Spring; 35. Pull rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: This utility model provides the following... Figures 1-3 The current transformer connection device shown includes a current transformer base plate 1, a base 2, and a snap-fit ​​assembly 3. The snap-fit ​​assembly 3 is used to fix the current transformer base plate 1 on the base 2. The snap-fit ​​assembly 3 includes a housing 31, a snap-fit ​​block 32, and a spring 34. The snap-fit ​​block 32 is slidably connected inside the housing 31. The spring 34 abuts against the inner wall of the housing 31 and the snap-fit ​​block 32. The snap-fit ​​block 32 is movably abutted against the current transformer base plate 1.

[0023] Furthermore, a positioning block 21 is fixedly connected to the base 2, and the positioning block 21 is used for the initial positioning of the current transformer base plate 1.

[0024] The base 2 has a plug-in slot 22, and the positioning blocks 21 are located on the front and rear sides of the plug-in slot 22 opening. The positioning blocks 21 on the base 2 can initially position the current transformer base plate 1, so that it can be quickly and accurately positioned when inserted into the plug-in slot 22, which improves the installation accuracy and avoids the performance of the current transformer being affected by installation deviation.

[0025] Example 2: This utility model provides the following... Figures 1-3 The current transformer connection device shown includes a current transformer base plate 1, a base 2, and a snap-fit ​​assembly 3. The snap-fit ​​assembly 3 is used to fix the current transformer base plate 1 on the base 2. The snap-fit ​​assembly 3 includes a housing 31, a snap-fit ​​block 32, and a spring 34. The snap-fit ​​block 32 is slidably connected inside the housing 31. The spring 34 abuts against the inner wall of the housing 31 and the snap-fit ​​block 32. The snap-fit ​​block 32 moves against the current transformer base plate 1.

[0026] The connection between the current transformer base plate 1 and the base 2 is achieved through the snap-fit ​​assembly 3. No tools are needed to tighten the bolts; simply insert the current transformer base plate 1 into the insertion slot 22 of the base 2. The snap-fit ​​block 32 automatically abuts against the current transformer base plate 1 under the action of the spring 34, thus securing it and significantly shortening installation time and improving efficiency. When maintenance or replacement of the current transformer is required, simply pull the lever 35, which moves the snap-fit ​​block 32 to compress the spring 34, separating the snap-fit ​​block 32 from the current transformer base plate 1. This allows the current transformer base plate 1 to be easily removed from the base 2, simplifying the operation and reducing maintenance costs.

[0027] Furthermore, both ends of the current transformer base plate 1 are provided with inwardly inclined notches 11.

[0028] Furthermore, the current transformer base plate 1 is inserted into the insertion slot 22.

[0029] Furthermore, a through hole 311 is provided on one side of the casing 31.

[0030] Furthermore, a triangular block 321 is fixedly connected to one side of the snap-fit ​​block 32, and the triangular block 321 is movable against the inclined notch 11.

[0031] Furthermore, the snap-fit ​​assembly 3 also includes a movable rod 33 and a pull rod 35. One end of the movable rod 33 passes through the spring 34 and is fixedly connected to the snap-fit ​​block 32. The other end of the movable rod 33 passes through the through hole 311 and is fixedly connected to the pull rod 35.

[0032] First, fix the base 2 in a suitable position. Then, align the current transformer base plate 1 with the insertion slot 22 on the base 2. Use the positioning block 21 to initially position the current transformer base plate 1, achieving quick alignment between the current transformer base plate 1 and the base 2, so that the inclined notches 11 at both ends of the current transformer base plate 1 are aligned with the direction of the snap-fit ​​assembly 3. Then, insert the current transformer base plate 1 into the insertion slot 22. During the insertion process, the current transformer base plate 1 will press the triangular block 321 on the snap-fit ​​block 32, causing the snap-fit ​​block 32 to slide within the housing 31 and compress the spring 34. When the current transformer base plate 1 is fully inserted, the snap-fit ​​block 32 returns to its original position under the elastic force of the spring 34. Both the snap-fit ​​block 32 and the triangular block 321 are snapped onto the current transformer base plate 1, completing the installation of the current transformer.

[0033] When it is necessary to disassemble the current transformer, pull the lever 35. The lever 35 drives the locking block 32 to slide inside the housing 31 through the moving rod 33, compressing the spring 34, so that the locking block 32 and the triangular block 321 are moved out and separated from the top of the current transformer base plate 1. At this time, the current transformer base plate 1 loses the constraint of the locking block 32 and can be easily pulled out from the insertion slot 22 of the base 2, completing the disassembly operation.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A current transformer connection device, characterized in that, The device includes a current transformer base plate (1), a base (2), and a snap-fit ​​assembly (3). The snap-fit ​​assembly (3) is used to fix the current transformer base plate (1) on the base (2). The snap-fit ​​assembly (3) includes a housing (31), a snap-fit ​​block (32), and a spring (34). The snap-fit ​​block (32) is slidably connected inside the housing (31). The spring (34) abuts against the inner wall of the housing (31) and the snap-fit ​​block (32). The snap-fit ​​block (32) moves against the current transformer base plate (1).

2. The current transformer connection device according to claim 1, characterized in that, Both ends of the current transformer base plate (1) are provided with inward inclined notches (11).

3. The current transformer connection device according to claim 1, characterized in that, A positioning block (21) is fixedly connected to the base (2), and the positioning block (21) is used for initial positioning of the current transformer base plate (1). The base (2) has a plug slot (22), and the positioning block (21) is located on the front and rear sides of the plug slot (22).

4. A current transformer connection device according to claim 3, characterized in that, The current transformer base plate (1) is inserted into the insertion slot (22).

5. A current transformer connection device according to claim 1, characterized in that, A through hole (311) is provided on one side of the casing (31).

6. A current transformer connection device according to claim 2, characterized in that, A triangular block (321) is fixedly connected to one side of the snap-fit ​​block (32), and the triangular block (321) moves against the inclined notch (11).

7. A current transformer connection device according to claim 5, characterized in that, The snap-fit ​​assembly (3) further includes a moving rod (33) and a pull rod (35). One end of the moving rod (33) passes through a spring (34) and is fixedly connected to the snap-fit ​​block (32). The other end of the moving rod (33) passes through a through hole (311) and is fixedly connected to the pull rod (35).

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