Mutual inductor stable in wiring
By introducing a fixed plate, a movable plate, and a clamping plate structure into the current transformer, combined with a T-slot and a buffer assembly, the problems of complicated wiring and loose wires in existing current transformers are solved, achieving more stable wiring and buffering effect.
Patent Information
- Application Number
- CN202422434722.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing current transformers require multiple bolts for wiring, which makes wiring troublesome. Furthermore, the wires are poorly cushioned after being secured with cable ties, making them prone to loosening.
It adopts a structure of fixed plate, movable plate and clamp, combined with T-slot, buffer component and limiting component. The limiting component fixes the wire and the buffer component in the T-slot provides a buffering effect when the wire is pulled to prevent loosening.
This achieves a more convenient wiring process and better wire fixing effect, effectively preventing the connection between the wire and the transformer body from loosening and improving stability.
Smart Images
Figure CN223501679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current transformer technology, specifically to a current transformer with stable wiring. Background Technology
[0002] Instrument transformers, also known as instrument transformers, are a general term encompassing current transformers and voltage transformers. They convert high voltage to low voltage and large current to small current for use in measurement or protection systems. Their primary function is to proportionally transform high voltage or large current into standard low voltage (100V) or standard small current (5A or 1A, both referring to rated values) to achieve standardization and miniaturization of measuring instruments, protection equipment, and automatic control equipment. Instrument transformers can also be used to isolate high-voltage systems to ensure the safety of personnel and equipment. There are typically three wiring methods for instrument transformers: leads, terminals, or pins. Lead and terminal connections use wires. However, after installation and wiring, if someone accidentally pulls on the wires, the connection between the wires and the transformer may become loose, affecting the normal operation of the instrument transformer.
[0003] In the prior art, such as the public notice number CN214705706U, a current transformer with stable wiring is proposed. This technical solution discloses a current transformer with stable wiring. The key technical points are: a current transformer with stable wiring includes a transformer body, a fixing plate fixedly connected to the transformer body, and a clamping plate detachably connected to the transformer body. A cavity is formed between the fixing plate and the clamping plate for the wire to pass through and for clamping the wire. An elastic element is fixedly connected to the fixing plate, and one end of the elastic element away from the fixing plate is fixedly connected to the wire. This utility model's current transformer with stable wiring prevents the connection between the wire and the transformer body from loosening when the wire connected to the transformer body is pulled, thanks to the combined action of the elastic element, the fixing plate, and the clamping plate. This does not affect the normal use of the transformer body. Furthermore, the silicone layer not only increases the clamping effect of the fixing plate and the clamping plate on the wire but also protects the wire and prevents scratches.
[0004] However, when wiring current transformers using existing technology, after the wires are passed between the fixing plate and the clamping plate, the clamping plate needs to be fixed with multiple bolts. This makes wiring current transformers more complicated. Moreover, after the wires are fixed to the elastic element with cable ties, the buffering effect on the wires is poor. When the wires are pulled, the wires and the current transformer body will still become loose.
[0005] To address the aforementioned issues, this application proposes a current transformer with robust wiring. Utility Model Content
[0006] The present invention aims to provide a current transformer with stable wiring, mainly to solve the problem that existing current transformers require multiple bolts to fix the clamp plate during wiring, which makes the wiring of the current transformer more complicated. Moreover, after fixing the wires to the elastic element with cable ties, the buffering effect of the wires is poor. When the wires are pulled, the wires and the current transformer body will still become loose.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A current transformer with stable wiring includes a current transformer body and a fixed plate fixedly connected to one side of the current transformer body. A movable plate is slidably connected to one side of the current transformer body below the fixed plate. A T-shaped block is fixedly connected to the bottom of the movable plate. A T-shaped groove matching the T-shaped block is opened on the current transformer body. A buffer component is fixedly connected to one end of the inner wall of the T-shaped groove. A clamping plate is connected to the top of both the fixed plate and the movable plate. A limit component is fixedly connected to the bottom of the clamping plate. An arc-shaped groove is opened on the fixed plate, the movable plate and the clamping plate. A silicone pad is fixedly connected to the inner wall of the arc-shaped groove.
[0009] The working principle and beneficial effects of this utility model:
[0010] 1. Working Principle: When using this current transformer, the wire connected to the terminals on the transformer body or the wire provided with the transformer body is passed between the fixed plate and the clamping plate, and the wire is placed in the arc-shaped groove. The clamping plate is fixed to the fixed plate by the limiting component. Then, the wire is bent and passed between the moving plate and the clamping plate, and the wire is placed in the arc-shaped groove. The clamping plate is fixed to the moving plate by the limiting component. During the use of the current transformer, when the wire is pulled, the moving plate can move away from the fixed plate. At the same time, the buffer component set inside the T-shaped groove can play a good buffering role for the wire, thereby effectively preventing the connection between the wire and the current transformer body from becoming loose.
[0011] 2. Beneficial effects: The clamp is fixed to the fixed plate and the movable plate by the limiting component, which makes the wiring of the current transformer more convenient. When wiring the current transformer, part of the wire is bent between the fixed plate and the movable plate. When the wire is pulled during the use of the current transformer, the buffer component set inside the T-slot can better buffer the wire, thereby further preventing the connection between the wire and the current transformer body from becoming loose, making the current transformer more stable during use.
[0012] Preferably, the buffer assembly includes a damping rod fixedly connected to one end of the inner wall of the T-slot, and the other end of the damping rod fixedly connected to the T-block. A first spring is sleeved on the outer wall of the damping rod, with one end of the first spring fixedly connected to the T-block and the other end fixedly connected to the inner wall of the T-slot. When the conductor of the current transformer is pulled during use, the moving plate can move away from the fixed plate. At the same time, through the cooperation of the damping rod inside the T-slot and the first spring, the conductor can be better buffered, thereby effectively preventing the connection between the conductor and the current transformer body from becoming loose.
[0013] Preferably, the limiting assembly includes insert blocks fixedly connected to both sides of the bottom of the clamping plate. The top of both the fixed plate and the movable plate has slots that match the insert blocks. A sliding cavity is formed on one side of each insert block, and a limiting block is slidably connected inside the sliding cavity. One side of the limiting block extends out of the insert block, and multiple second springs are fixedly connected to the other side. The other ends of the second springs are fixedly connected to the inner wall of the sliding cavity. A limiting groove matching the limiting block is formed on one side of the inner wall of the slot, and a button is slidably connected inside the limiting groove. One side of the button extends out of the fixed plate and the movable plate, and the other side abuts against the limiting block, thus placing the clamping plate... When the insert is inserted into the slot, the limiting block is squeezed and slides into the sliding cavity, simultaneously squeezing the second spring and compressing it. When the insert is fully inserted into the slot, the limiting block pops out under the action of the second spring and engages with the limiting groove, thus fixing the clamp plate to the fixed plate or the movable plate. This not only makes the wiring of the current transformer more convenient, but also provides a better fixing effect for the wires. Pressing the button can push the limiting block into the sliding cavity. When the limiting block is disengaged from the limiting groove, the clamp plate can be disassembled, which makes it convenient for staff to maintain the current transformer.
[0014] Preferably, the bottom of the T-block is rotatably connected to multiple ball bearings, which are distributed in a linear array at equal intervals on the T-block. When the conductor of the current transformer is pulled during use, the moving plate will drive the T-block to slide inside the T-slot. The multiple ball bearings at the bottom of the T-block can effectively reduce the friction between the T-block and the inner wall of the T-slot. This not only makes the moving plate move more smoothly, but also effectively reduces the wear between the T-block and the inner wall of the T-slot.
[0015] Preferably, sliders are fixedly connected to both sides of the button, and the inner wall of the limiting groove is provided with a sliding groove that matches the slider. When the button slides inside the limiting groove, the sliders on both sides of the button and the sliding groove on the inner wall of the limiting groove can play a good role in limiting and guiding the button. This not only makes the button more stable when sliding inside the limiting groove, but also effectively prevents the button from leaving the limiting groove.
[0016] Preferably, there are multiple damping rods, and the damping rods are distributed linearly and equidistantly inside the T-shaped groove. By setting the number of damping rods inside the T-shaped groove to multiple, and each of the multiple damping rods is fitted with a first spring, when the conductor is pulled during the use of the current transformer, the multiple damping rods and the first spring can play a better buffering role on the conductor, thereby further preventing the conductor from loosening with the current transformer body.
[0017] Preferably, the corners on both sides of the top of the splint are rounded. By making the corners on both sides of the top of the splint rounded, people will not be scratched by the corners of the splint when they are assembling or disassembling the splint. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0019] Figure 2 This is a bottom view sectional structural diagram of the entire utility model;
[0020] Figure 3 This is a partially enlarged cross-sectional structural diagram of the present invention;
[0021] Figure 4 This is a schematic diagram of the overall structure of the movable plate and clamping plate of this utility model.
[0022] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A;
[0023] Figure 6 This utility model Figure 3 A magnified structural diagram at point B in the middle.
[0024] In the diagram: 1. Current transformer body; 2. Fixed plate; 3. Moving plate; 4. T-block; 5. T-slot; 6. Clamping plate; 7. Silicone pad; 8. Damping rod; 9. First spring; 10. Insert block; 11. Slot; 12. Slide cavity; 13. Limiting block; 14. Second spring; 15. Limiting slot; 16. Button; 17. Ball bearing; 18. Slider; 19. Slide groove. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-6A current transformer with stable wiring includes a current transformer body 1 and a fixed plate 2 fixedly connected to one side of the current transformer body 1. A movable plate 3 is slidably connected to one side of the current transformer body 1 below the fixed plate 2. A T-shaped block 4 is fixedly connected to the bottom of the movable plate 3. A T-shaped groove 5 matching the T-shaped block 4 is opened on the current transformer body 1. The T-shaped block 4 at the bottom of the movable plate 3 and the T-shaped groove 5 on the current transformer body 1 can play a better role in limiting and guiding the movable plate 3, thereby making the movable plate 3 more stable when sliding. Multiple balls 17 are rotatably connected to the bottom of the T-shaped block 4, and the balls 17 are linearly arrayed and equidistantly distributed on the T-shaped block 4, which can effectively reduce the friction between the T-shaped block 4 and the inner wall of the T-shaped groove 5. This not only makes the movable plate 3 move more smoothly, but also effectively reduces the wear between the T-shaped block 4 and the inner wall of the T-shaped groove 5. One end of the inner wall of the T-shaped groove 5 is fixedly connected to a... The buffer assembly, designed to better cushion the conductor when stretched during operation, is located inside the T-slot 5. Both the fixed plate 2 and the movable plate 3 have clamping plates 6 at their tops. The corners on both sides of the top of the clamping plates 6 are rounded. A limiting component is fixedly connected to the bottom of the clamping plates 6. Arc-shaped grooves are formed on the fixed plate 2, movable plate 3, and clamping plates 6, and silicone pads 7 are fixedly connected to the inner walls of these grooves. When using the transformer, the conductor connected to the terminals on the transformer body 1, or the conductor provided with the transformer body 1, is passed between the fixed plate 2 and the clamping plates 6, and placed within the arc-shaped groove. The clamping plates 6 are then fixed to the fixed plate 2 using the limiting component. The conductor is then bent slightly and passed between the movable plate 3 and the clamping plates 6, again placed within the arc-shaped groove. The clamping plates 6 are then fixed to the movable plate 3 using the limiting component. The transformer is then ready for normal operation.
[0027] like Figure 3 and Figure 6 As shown, the buffer assembly includes multiple damping rods 8 fixedly connected to one end of the inner wall of the T-shaped groove 5, and the damping rods 8 are linearly arrayed and equidistantly distributed inside the T-shaped groove 5. The other end of the damping rod 8 is fixedly connected to the T-shaped block 4. A first spring 9 is sleeved on the outer wall of the damping rod 8. One end of the first spring 9 is fixedly connected to the T-shaped block 4, and the other end is fixedly connected to the inner wall of the T-shaped groove 5. When the conductor of the current transformer is pulled during use, the moving plate 3 can move away from the fixed plate 2. At the same time, through the cooperation of the damping rods 8 and the first spring 9 inside the T-shaped groove 5, the conductor can be better buffered, thereby effectively preventing the connection between the conductor and the current transformer body 1 from becoming loose.
[0028] like Figure 2 and Figure 5As shown, the limiting assembly includes a clamping plate 6 with inserts 10 fixedly connected to both sides of its bottom. The top of both the fixed plate 2 and the movable plate 3 has slots 11 that match the inserts 10. A sliding cavity 12 is formed on one side of the insert 10, and a limiting block 13 is slidably connected inside the sliding cavity 12. One side of the limiting block 13 extends out of the insert 10, and multiple second springs 14 are fixedly connected to the other side. The other end of each second spring 14 is fixedly connected to the inner wall of the sliding cavity 12. A limiting groove 15 matching the limiting block 13 is formed on one side of the inner wall of the slot 11. A button 16 is slidably connected inside the limiting groove 15. Slider blocks 18 are fixedly connected to both sides of the button 16. A sliding groove 19 matching the slider 18 is formed on the inner wall of the limiting groove 15. The fixed plate 2 extends out from one side of the button 16. The movable plate 3 is positioned on one side against the limiting block 13. When the insert 10 on the clamping plate 6 is inserted into the slot 11, the limiting block 13 is squeezed and slides into the sliding cavity 12, simultaneously squeezing the second spring 14 and compressing it. When the insert 10 is fully inserted into the slot 11, the limiting block 13 pops out under the action of the second spring 14 and engages with the limiting groove 15, thus fixing the clamping plate 6 on the fixed plate 2 or the movable plate 3. This not only makes the wiring of the current transformer more convenient, but also provides a better fixing effect for the wires. Pressing the button 16 can push the limiting block 13 to slide into the sliding cavity 12. When the limiting block 13 is disengaged from the limiting groove 15, the clamping plate 6 can be disassembled, which facilitates the maintenance of the current transformer by the staff.
[0029] As can be seen from the above, the specific embodiments of this utility model are as follows:
[0030] When using this transformer, the wire connected to the terminals on the transformer body 1 or the wire provided with the transformer body 1 is passed between the fixed plate 2 and the clamping plate 6, and the wire is placed in the arc-shaped groove. When the plug 10 on the clamping plate 6 is inserted into the slot 11, the limiting block 13 is squeezed and slides into the sliding cavity 12, while squeezing the second spring 14 and compressing it. When the plug 10 is fully inserted into the slot 11, the limiting block 13 will pop out under the action of the second spring 14 and engage with the limiting groove 15, thus fixing the clamping plate 6 on the fixed plate 2 or the movable plate 3. When wiring the transformer, part of the wire is bent between the fixed plate 2 and the movable plate 3. When the wire is pulled during the use of the transformer, the movable plate 3 can move away from the fixed plate 2. At the same time, through the cooperation of the damping rod 8 inside the T-shaped groove 5 and the first spring 9, the wire can be better buffered, thereby effectively preventing the connection between the wire and the transformer body 1 from becoming loose.
[0031] The above description is merely 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 with secure wiring, comprising a current transformer body (1) and a fixing plate (2) fixedly connected to one side of the current transformer body (1), characterized in that, A movable plate (3) is slidably connected to one side of the transformer body (1) below the fixed plate (2). A T-shaped block (4) is fixedly connected to the bottom of the movable plate (3). A T-shaped groove (5) matching the T-shaped block (4) is opened on the transformer body (1). A buffer component is fixedly connected to one end of the inner wall of the T-shaped groove (5). A clamping plate (6) is connected to the top of both the fixed plate (2) and the movable plate (3). A limit component is fixedly connected to the bottom of the clamping plate (6). An arc groove is opened on the fixed plate (2), the movable plate (3) and the clamping plate (6). A silicone pad (7) is fixedly connected to the inner wall of the arc groove.
2. The current transformer with stable wiring according to claim 1, characterized in that: The buffer assembly includes a damping rod (8) fixedly connected to one end of the inner wall of the T-groove (5), and the other end of the damping rod (8) fixedly connected to the T-block (4). A first spring (9) is sleeved on the outer wall of the damping rod (8), with one end of the first spring (9) fixedly connected to the T-block (4) and the other end fixedly connected to the inner wall of the T-groove (5).
3. A current transformer with stable wiring according to claim 1, characterized in that: The limiting assembly includes a clamp plate (6) with two fixed plugs (10) on the bottom sides. The top of the fixed plate (2) and the movable plate (3) are provided with slots (11) that match the plugs (10). A sliding cavity (12) is provided on one side of the plug (10). A limiting block (13) is slidably connected inside the sliding cavity (12). The plug (10) extends out from one side of the limiting block (13), and multiple second springs (14) are fixedly connected to the other side. The other end of the second spring (14) is fixedly connected to the inner wall of the sliding cavity (12). A limiting groove (15) that matches the limiting block (13) is provided on one side of the inner wall of the slot (11). A button (16) is slidably connected inside the limiting groove (15). The fixed plate (2) and the movable plate (3) extend out from one side of the button (16), and the other side abuts against the limiting block (13).
4. A current transformer with stable wiring according to claim 1, characterized in that: The bottom of the T-shaped block (4) is rotatably connected to multiple balls (17), and the balls (17) are distributed in a linear array at equal intervals on the T-shaped block (4).
5. A current transformer with stable wiring according to claim 3, characterized in that: Both sides of the button (16) are fixedly connected to sliders (18), and the inner wall of the limiting groove (15) is provided with a groove (19) that matches the slider (18).
6. A current transformer with stable wiring according to claim 2, characterized in that: There are multiple damping rods (8), and the damping rods (8) are distributed in a linear array at equal intervals inside the T-shaped groove (5).
7. A current transformer with stable wiring according to claim 1, characterized in that: The corners on both sides of the top of the clamp (6) are rounded.