Miniature low-power consumption mutual inductor

Abstract

The present application relates to the field of mutual inductor, especially to a micro low-power mutual inductor, which comprises a body, a wiring seat, an adjusting screw, a pressing sheet, a pressing seat and a positioning pin, one side of the body is provided with two wiring terminals, the end of each wiring terminal is provided with a wiring seat, the top of the wiring seat is provided with an equal-distance plug-in block, the surface of the plug-in block is provided with a groove, one side of each wiring seat is provided with an adjusting screw, and one end of the adjusting screw is connected in the corresponding wiring terminal through a thread. The micro low-power mutual inductor provided by the present application realizes the convenient connection and fixation of the electric wire through the cooperation of the adjusting screw, the pressing sheet, the positioning pin and other components, the mutual inductor can not only compress multiple connecting wires at the same time, but also loosen a connecting wire individually, and the flexibility and convenience make the user more rapid and accurate when dealing with specific electric wire connection problems.

Description

Technical Field

[0001] This invention relates to the field of current transformers, and more particularly to a miniature low-power current transformer. Background Technology

[0002] As an emerging technology, miniature low-power instrument transformers utilize materials with high saturation magnetic induction intensity in their cores, enabling them to provide high-precision current measurement within a small current range. They also possess good frequency response characteristics, accurately reflecting voltage and current changes in power systems. Traditionally, miniature low-power instrument transformer terminals are connected to the inserted line ends using screws. However, when several wires need to be connected to the transformer terminals, this screw-tightening method presents several problems. First, replacing one wire requires loosening the screws, which may loosen other wires and affect connection stability. Second, in numerous repetitive operations, screw tightening is not only time-consuming but also often carries the risk of poor contact, increasing maintenance costs and complexity.

[0003] Therefore, it is necessary to provide a new miniature low-power current transformer to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a miniature low-power current transformer.

[0005] The miniature low-power current transformer provided by this invention includes:

[0006] The device body has two wiring terminals on one side.

[0007] The terminal block is provided at the end of each terminal block, and the top of the terminal block is provided with wire insertion blocks at equal intervals, and the surface of the wire insertion blocks is provided with grooves.

[0008] Adjusting screws: Each terminal block has an adjusting screw on one side, with one end of the adjusting screw connected to the corresponding terminal block via a thread.

[0009] The pressing plate is slidably connected to the outside of the adjusting screw, and the pressing plate moves up and down by rotating the adjusting screw;

[0010] The surface of the push-button base and the terminal block is fixedly connected to guide posts on both sides of the plug block. The guide posts are slidably connected inside the push-button plate, and the push-button base is slidably connected to the outer side of the guide posts on both sides of the plug block.

[0011] The positioning pin includes a slide rod, an adjusting plate, and a limiting rod. The slide rod is slidably connected inside the pressing seat. One end of the slide rod is fixedly connected to an adjusting plate. One side of the adjusting plate is symmetrically fixedly connected to a limiting rod, and the limiting rods are respectively set on both sides of the pressing plate.

[0012] Preferably, the bottom of the device is provided with a mounting plate, and the top of the mounting plate is symmetrically provided with mounting holes.

[0013] Preferably, the bottom of the pressing seat is provided with protrusions.

[0014] Preferably, a pull rod is provided on the other side of the adjusting plate.

[0015] Preferably, springs are fitted on the outer side of the guide posts, and the pressing seat is elastically connected to the terminal block through the springs.

[0016] Preferably, a locking ring is provided on the outside of the pressing plate, and the locking ring is sleeved on the outside of the corresponding four adjusting plates.

[0017] Preferably, the other end of the adjusting screw has a cross groove.

[0018] Preferably, a protective ring is fixedly connected to one side of the terminal block, and the protective ring is sleeved on the outside of the adjusting screw.

[0019] Compared with related technologies, the miniature low-power current transformer provided by this invention has the following beneficial effects:

[0020] This invention provides a miniature low-power current transformer. Through the cooperation of components such as adjusting screws, pressing plates, and positioning pins, the miniature low-power current transformer achieves convenient connection and fixation of wires. This design not only improves work efficiency but also ensures a firm connection between the wire and the current transformer, reducing safety hazards caused by poor contact. The current transformer can not only simultaneously tighten multiple connecting wires but also loosen a single connecting wire. This flexibility and convenience allows users to handle specific wire connection problems more quickly and accurately. When it is necessary to replace or repair a single wire, the user can easily loosen the connection of that wire without affecting the normal operation of other wires. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the miniature low-power current transformer provided by the present invention;

[0022] Figure 2 for Figure 1 The diagram shows the structure of the terminal block;

[0023] Figure 3 for Figure 1 The diagram shown is a structural schematic of the compression tablet.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the connector and the pressing plate.

[0025] The following are the labels in the diagram: 1. Body; 2. Terminal block; 3. Terminal block; 4. Connector block; 5. Adjusting screw; 6. Pressing plate; 7. Pressing seat; 8. Guide post; 9. Positioning pin; 10. Slide rod; 11. Adjusting plate; 12. Limiting rod; 13. Mounting plate; 14. Mounting hole; 15. Protrusion; 16. Pull rod; 17. Spring; 18. Locking ring; 19. Cross groove; 20. Protective ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] Please see Figures 1 to 4 A miniature low-power current transformer, the miniature low-power current transformer comprising:

[0029] The device body 1 has two wiring terminals 2 on one side;

[0030] Terminal block 3, each terminal 2 is provided with terminal block 3 at its end, and wire plug 4 is provided at equal intervals on the top of terminal block 3, and the surface of wire plug 4 is provided with groove;

[0031] Adjusting screw 5: Each terminal block 3 is provided with an adjusting screw 5 on one side. One end of the adjusting screw 5 is threaded into the corresponding terminal block 2.

[0032] The pressing plate 6 is slidably connected to the outside of the adjusting screw 5. The pressing plate 6 moves up and down by rotating the adjusting screw 5.

[0033] The surface of the pressing base 7 and the terminal block 3 is fixedly connected to the guide post 8 on both sides of the plug block 4. The guide post 8 is slidably connected inside the pressing plate 6, and the pressing base 7 is slidably connected to the outer side of the guide post 8 on both sides of the plug block 4.

[0034] The positioning pin 9 includes a slide rod 10, an adjusting plate 11, and a limiting rod 12. The slide rod 10 is slidably connected inside the pressing base 7. One end of the slide rod 10 is fixedly connected to the adjusting plate 11. The limiting rod 12 is symmetrically fixedly connected to one side of the adjusting plate 11, and the limiting rod 12 is respectively set on both sides of the pressing plate 6.

[0035] It should be noted that when connecting the wire to the current transformer, first rotate the adjusting screw 5. Since one end of the adjusting screw 5 is threaded into the corresponding terminal 2, rotating the adjusting screw 5 will cause it to move up and down. The up and down movement of the adjusting screw 5 will cause the pressing plate 6, which is slidably connected to it, to move up and down. During this process, since the limiting rod 12 of the positioning pin 9 is stuck on both sides of the pressing plate 6, the movement of the pressing plate 6 will also cause the positioning pin 9 to move together. The movement of the positioning pin 9 will further drive the pressing seat 7 to slide along the guide post 8 through the slide rod 10 and adjusting plate 11 inside it. The guide post 8 is fixed on the terminal block 3 and slidably connected inside the pressing plate 6 to ensure the stable movement of the pressing seat 7. As the pressing seat 7 moves, the distance between it and the terminal block 3 will decrease, thereby squeezing the end of the wire inserted into the terminal block 3. This squeezing force ensures a firm connection between the wire and the current transformer.

[0036] Please see Figures 1 to 4 The bottom of the device body 1 is provided with a mounting plate 13, and the top of the mounting plate 13 is symmetrically provided with mounting holes 14;

[0037] It should be noted that this is to facilitate the installation and fixation of the current transformer on the equipment or structure;

[0038] Please see Figures 1 to 4 Each of the pressing bases 7 has a protrusion 15 at its bottom;

[0039] It should be noted that these protrusions 15 may be used to enhance the friction between the press base 7 and the wire, ensuring that the wire is stably fixed.

[0040] Please see Figures 1 to 4 A pull rod 16 is provided on the other side of the adjusting plate 11;

[0041] It should be noted that the design of the pull rod 16 allows users to easily operate the adjusting plate 11, thereby controlling the movement of the positioning pin 9 and the fixing of the wire;

[0042] Please see Figures 1 to 4 Springs 17 are fitted on the outer side of each guide post 8, and the pressing seat 7 is elastically connected to the terminal block 3 through the springs 17.

[0043] It should be noted that this design allows the press seat 7 to automatically reset when subjected to external force;

[0044] Please see Figures 1 to 4 A locking ring 18 is provided on the outer side of the pressing plate 6, and the locking ring 18 is sleeved on the outer side of the four corresponding adjusting plates 11;

[0045] It should be noted that: it is used to fix the position of the adjusting piece 11 to prevent it from moving accidentally;

[0046] Please see Figures 1 to 4The other end of the adjusting screw 5 is provided with a cross groove 19;

[0047] It should be noted that the design of the cross groove 19 allows users to easily rotate the adjusting screw 5 with tools such as screwdrivers, thereby controlling the up and down movement of the pressing piece 6;

[0048] Please see Figures 1 to 4 A protective ring 20 is fixedly connected to one side of the terminal block 3, and the protective ring 20 is sleeved on the outside of the adjusting screw 5;

[0049] It should be noted that the adjusting screw 5 is used to protect the transformer from damage caused by the external environment and to extend its service life.

[0050] The working principle of the miniature low-power current transformer provided by this invention is as follows:

[0051] Wire connection and fixing mechanism:

[0052] When it is necessary to connect the wire to the transformer, first rotate the adjusting screw 5. Since one end of the adjusting screw 5 is connected to the corresponding terminal 2 through a thread, rotating the adjusting screw 5 will make it move up and down.

[0053] The up-and-down movement of adjusting screw 5 will cause the pressing piece 6, which is slidably connected to it, to move up and down. During this process, since the limiting rod 12 of positioning pin 9 is stuck on both sides of pressing piece 6, the movement of pressing piece 6 will also cause positioning pin 9 to move together.

[0054] The movement of the positioning pin 9 will further drive the pressing seat 7 to slide along the guide post 8 through the internal slide rod 10 and adjusting plate 11. The guide post 8 is fixed on the terminal block 3 and slidably connected inside the pressing plate 6 to ensure the stable movement of the pressing seat 7.

[0055] As the pressing seat 7 moves, the distance between it and the terminal block 3 decreases, thereby squeezing the end of the wire inserted into the terminal block 3. This squeezing force ensures a firm connection between the wire and the transformer.

[0056] Regulation and separation mechanisms:

[0057] When it is necessary to connect or disconnect a wire, the lever 16 can be pulled. The lever 16 is connected to the adjusting plate 11. Pulling the lever 16 will cause the slide bar 10 to slide inside the pressing seat 7.

[0058] The sliding of the slide bar 10 will cause the adjusting plate 11 to move, thereby causing the limiting rod 12 to separate from the pressing plate 6. Once the limiting rod 12 separates from the pressing plate 6, the elastic force of the spring 17 will take effect, pushing the pressing seat 7 to separate from the terminal block 3.

[0059] Under the action of spring 17, the gap between the corresponding pressing seat 7 and the terminal block 3 increases, providing space for inserting new wires or disconnecting existing wires.

[0060] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A miniature low-power current transformer, characterized in that, include: The device body (1) has two wiring terminals (2) on one side. Terminal block (3), each terminal (2) is provided with terminal block (3) at its end, and the top of terminal block (3) is provided with plug blocks (4) at equal intervals, and the surface of plug blocks (4) is provided with grooves; Adjusting screw (5): Each terminal block (3) is provided with an adjusting screw (5) on one side. One end of the adjusting screw (5) is connected to the corresponding terminal block (2) by a thread. The pressing plate (6) is slidably connected to the outside of the adjusting screw (5). The pressing plate (6) moves up and down by rotating the adjusting screw (5). The surface of the press base (7) and the terminal block (3) are fixedly connected to the guide post (8) on both sides of the plug block (4). The guide post (8) is slidably connected inside the press plate (6). The press base (7) is slidably connected to the outside of the guide post (8) on both sides of the plug block (4). The positioning pin (9) includes a slide rod (10), an adjusting plate (11) and a limiting rod (12). The slide rod (10) is slidably connected inside the pressing seat (7). One end of the slide rod (10) is fixedly connected to the adjusting plate (11). The limiting rod (12) is symmetrically fixedly connected to one side of the adjusting plate (11), and the limiting rod (12) is respectively set on both sides of the pressing plate (6). The other side of the adjusting plate (11) is provided with a pull rod (16). Springs (17) are fitted on the outside of the guide post (8), and the pressing seat (7) is elastically connected to the terminal block (3) through the springs (17).

2. The miniature low-power current transformer according to claim 1, characterized in that, The bottom of the device (1) is provided with a mounting plate (13), and the top of the mounting plate (13) is symmetrically provided with mounting holes (14).

3. The miniature low-power current transformer according to claim 1, characterized in that, The bottom of the pressing seat (7) is provided with protrusions (15).

4. The miniature low-power current transformer according to claim 1, characterized in that, A locking ring (18) is provided on the outside of the pressing plate (6), and the locking ring (18) is fitted on the outside of the four corresponding adjusting plates (11).

5. The miniature low-power current transformer according to claim 1, characterized in that, The other end of the adjusting screw (5) is provided with a cross groove (19).

6. The miniature low-power current transformer according to claim 1, characterized in that, A protective ring (20) is fixedly connected to one side of the terminal block (3), and the protective ring (20) is sleeved on the outside of the adjusting screw (5).

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