Current transformer
By designing fixing components in the current transformer, including structures such as placement slots, mounting plates, and clips, the problem of easy detachment of busbar connection ends is solved, the connection wires are firmly fixed, and the reliability and convenience of the current transformer are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NISHANG ELECTRIC CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-12
AI Technical Summary
When existing current transformers are used for a long time, the busbar connection end is prone to falling out of the busbar hole, causing circuit failure, requiring frequent inspection and maintenance, and affecting the user's convenience.
A current transformer including a fixing component is designed. The fixing component consists of a placement slot, a mounting plate, a limit block, a mounting bolt, a locking block, and a plug rod. The connecting wire is fixed by sliding and threaded connection to prevent it from falling out of the wiring hole.
This effectively prevents the connecting wires from coming loose from the wiring holes, improving the stability and ease of use of the current transformer and reducing the frequency of maintenance.
Smart Images
Figure CN224232479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current transformer technology, specifically a current transformer. Background Technology
[0002] A current transformer is an instrument that measures a large primary current by converting a small secondary current into a large primary current based on the principle of electromagnetic induction. A current transformer consists of a closed iron core and windings.
[0003] In the prior art, such as the current transformer proposed in patent application number "CN201520394322.9", a transformer body is included. The transformer body includes a housing. A busbar hole is opened in the center of the housing. A busbar hole is opened in the center of the busbar. The longitudinal cross-section of the busbar hole is circular. At least two rectangular slots for placing a rectangular busbar are provided on the inner wall of the busbar hole. The rectangular slots are arranged symmetrically about the busbar hole. The rectangular slots extend along the axis of the busbar hole to the front and rear end faces of the housing. A first rounded corner is opened at the position where the busbar hole contacts the end face of the housing, and a second rounded corner is opened at the position where the rectangular slot contacts the end face of the housing.
[0004] However, in the aforementioned patent, when the current transformer is used for a long time, the connection end of the busbar is prone to fall out of the inside of the busbar hole, causing circuit failure of the current transformer. This requires staff to inspect and repair the current transformer, which is inconvenient for users. Utility Model Content
[0005] The purpose of this invention is to provide a current transformer to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A current transformer includes a transformer body and a fixing assembly, the fixing assembly including a placement slot formed on one side of the transformer body.
[0008] An installation plate is slidably provided on the inner side of the placement slot. A limit block is fixedly provided on one side of the installation plate. A limit groove is opened inside the placement slot. One end of the limit block is slidably provided inside the limit groove. Both ends of the installation plate are threaded with installation bolts. One end of the two installation bolts is threaded inside the transformer body. Two pairs of arc-shaped first locking blocks are fixedly provided on the other side of the installation plate.
[0009] Preferably, the lower end of the mounting plate is provided with a rectangular sliding groove, and an L-shaped sliding block is slidably disposed inside the sliding groove.
[0010] Preferably, a connecting plate is fixedly provided at one end of the sliding block, and two pairs of arc-shaped second locking blocks are fixedly provided on one side of the connecting plate, with the two pairs of first locking blocks and the two pairs of second locking blocks being symmetrical.
[0011] Preferably, each of the two pairs of first locking blocks and the two pairs of second locking blocks has an arc-shaped rubber block fixedly installed on one side opposite to it, and both ends of the connecting plate are rotatably equipped with insert rods.
[0012] Preferably, two fixing blocks are fixedly provided at both ends of the mounting plate, and one end of each of the two insert rods is threaded into the two fixing blocks.
[0013] Preferably, two terminal blocks are fixedly provided on one side of the current transformer body, and a pair of wiring holes are opened on the upper surface of each of the two terminal blocks. Two pairs of first locking blocks and two pairs of second locking blocks are respectively arranged above the two pairs of wiring holes.
[0014] The beneficial effects of this utility model are:
[0015] This utility model's fixing component includes a placement groove and a mounting plate, etc. The connecting wire is placed between the first and second locking blocks, and the sliding block is slid inside the sliding groove. The two insert rods are rotated so that one end of each insert rod is threaded into the interior of the two fixing blocks, fixing the position between the mounting plate and the connecting plate, fixing the position of the connecting wire, preventing the connecting wire from falling out of the wiring hole, and facilitating user use. 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, 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 placement groove and limiting groove structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the mounting bolt and the first locking block structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the mounting plate and sliding groove structure of this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Current transformer body; 2. Placement slot; 3. Mounting plate; 4. Limiting block; 5. Limiting slot; 6. Mounting bolt; 7. First locking block; 8. Sliding slot; 9. Sliding block; 10. Connecting plate; 11. Second locking block; 12. Rubber block; 13. Fixing block; 14. Insert rod; 15. Terminal block; 16. Wiring hole. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] A current transformer includes a transformer body 1 and a fixing component. The fixing component includes a placement slot 2, which is formed on one side of the transformer body 1.
[0025] An installation plate 3 is slidably provided on the inner side of the placement groove 2. A limit block 4 is fixedly provided on one side of the installation plate 3. A limit groove 5 is opened inside the placement groove 2. One end of the limit block 4 is slidably provided inside the limit groove 5. Both ends of the installation plate 3 are threaded with installation bolts 6. One end of the two installation bolts 6 is threaded inside the transformer body 1. Two pairs of arc-shaped first locking blocks 7 are fixedly provided on the other side of the installation plate 3.
[0026] like Figure 1 , Figure 2 and Figure 3 Slide the mounting plate 3 into the placement groove 2 so that the limiting block 4 slides inside the limiting groove 5. Insert the two mounting bolts 6 into the mounting plate 3 and the transformer body 1 to prevent the mounting plate 3 from falling out of the placement groove 2 and fix the position of the two pairs of first locking blocks 7.
[0027] The lower end of the mounting plate 3 is provided with a rectangular sliding groove 8, and an L-shaped sliding block 9 is slidably disposed inside the sliding groove 8.
[0028] like Figure 3 and Figure 4 Slide the sliding block 9 inside the sliding groove 8 to control the position between the mounting plate 3 and the connecting plate 10.
[0029] A connecting plate 10 is fixedly installed at one end of the sliding block 9, and two pairs of arc-shaped second locking blocks 11 are fixedly installed on one side of the connecting plate 10. The two pairs of first locking blocks 7 and the two pairs of second locking blocks 11 are symmetrical.
[0030] like Figure 3Two pairs of first locking blocks 7 and two pairs of second locking blocks 11 are arranged above the wiring hole 16, so that the connecting wire is between the first locking blocks 7 and the second locking blocks 11.
[0031] Two pairs of first locking blocks 7 and two pairs of second locking blocks 11 are each fixedly provided with an arc-shaped rubber block 12 on one side of their opposite sides, and two ends of the connecting plate 10 are each rotatably provided with a plug rod 14.
[0032] like Figure 3 Since the four pairs of rubber blocks 12 are respectively fixed on the opposite side of the two pairs of first locking blocks 7 and the two pairs of second locking blocks 11, the damage to the connecting wires by the first locking blocks 7 and the second locking blocks 11 is reduced by the rubber blocks 12.
[0033] Two fixing blocks 13 are fixedly installed at both ends of the mounting plate 3, and one end of each of the two insert rods 14 is threaded into the two fixing blocks 13.
[0034] like Figure 3 Rotate the two insert rods 14 so that one end of the two insert rods 14 is threaded into the interior of the two fixing blocks 13, fixing the position between the mounting plate 3 and the connecting plate 10.
[0035] Two terminal blocks 15 are fixedly installed on one side of the transformer body 1. Each of the two terminal blocks 15 has a pair of wiring holes 16 on its upper surface. Two pairs of first locking blocks 7 and two pairs of second locking blocks 11 are respectively installed above the two pairs of wiring holes 16.
[0036] like Figure 1 , Figure 2 and Figure 3 The mounting plate 3 and the connecting plate 10 are fixed above the two terminal blocks 15. The connecting wire is connected inside the wiring hole 16 and the position of the connecting wire is fixed by the cooperation of the first locking block 7 and the second locking block 11 to prevent the connecting wire from falling out of the wiring hole 16.
[0037] The working principle of the current transformer provided by this utility model is as follows:
[0038] Slide the mounting plate 3 into the placement groove 2, so that the limiting block 4 slides into the limiting groove 5. Insert the mounting bolt 6 into the mounting plate 3 and the transformer body 1. Take out the insertion rod 14 from the inside of the fixing block 13. Take the connecting plate 10 from the other side of the mounting plate 3. Place the connecting wire inside the rubber block 12 on one side of the first locking block 7. Slide the sliding block 9 into the sliding groove 8, so that the two pairs of first locking blocks 7 and the two pairs of second locking blocks 11 are placed opposite each other. Rotate the two insertion rods 14 and insert them into the two fixing blocks 13 respectively. Fix the two pairs of first locking blocks 7 and the two pairs of second locking blocks 11 on the outer surface of the connecting wire respectively, fix the position of the connecting wire, and prevent the connecting wire from falling out of the wiring hole 16.
[0039] Compared with related technologies, the current transformer provided by this utility model has the following beneficial effects:
[0040] The fixing component of this utility model includes a placement groove 2 and a mounting plate 3, etc. The connecting wire is placed between the first locking block 7 and the second locking block 11. The sliding block 9 is slid inside the sliding groove 8. The two insert rods 14 are rotated so that one end of the two insert rods 14 is threaded into the inside of the two fixing blocks 13 respectively, fixing the position between the mounting plate 3 and the connecting plate 10, fixing the position of the connecting wire, preventing the connecting wire from falling out of the wiring hole 16, and facilitating user use.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A current transformer, comprising a transformer body (1) and a fixing assembly, characterized in that, The fixing component includes a placement slot (2), which is located on one side of the transformer body (1); An installation plate (3) is slidably provided on the inner side of the placement groove (2). A limit block (4) is fixedly provided on one side of the installation plate (3). A limit groove (5) is opened inside the placement groove (2). One end of the limit block (4) is slidably provided inside the limit groove (5). Both ends of the installation plate (3) are threaded with installation bolts (6). One end of the two installation bolts (6) is threaded inside the transformer body (1). Two pairs of arc-shaped first locking blocks (7) are fixedly provided on the other side of the installation plate (3).
2. A current transformer according to claim 1, characterized in that, The lower end of the mounting plate (3) is provided with a rectangular sliding groove (8), and an L-shaped sliding block (9) is slidably arranged inside the sliding groove (8).
3. A current transformer according to claim 2, characterized in that, One end of the sliding block (9) is fixedly provided with a connecting plate (10), and two pairs of arc-shaped second locking blocks (11) are fixedly provided on one side of the connecting plate (10). The two pairs of first locking blocks (7) and the two pairs of second locking blocks (11) are symmetrical.
4. A current transformer according to claim 3, characterized in that, Two pairs of first locking blocks (7) and two pairs of second locking blocks (11) are each fixedly provided with an arc-shaped rubber block (12) on one side opposite to each other, and two ends of the connecting plate (10) are rotatably provided with insert rods (14).
5. A current transformer according to claim 4, characterized in that, Two fixing blocks (13) are fixedly installed at both ends of the mounting plate (3), and one end of each of the two insert rods (14) is threaded into the two fixing blocks (13).
6. A current transformer according to claim 3, characterized in that, Two terminal blocks (15) are fixedly installed on one side of the transformer body (1). Each terminal block (15) has a pair of wiring holes (16) on its upper surface. Two pairs of first locking blocks (7) and two pairs of second locking blocks (11) are respectively installed above the two pairs of wiring holes (16).